From 7f3c341a9f19795e423e8821c34bbe37fea20aed Mon Sep 17 00:00:00 2001 From: Martin Ruckert Date: Wed, 19 Jan 2022 13:28:43 +0000 Subject: adding files to build the Linux HINT viewer (independent of the TL build) git-svn-id: svn://tug.org/texlive/trunk@61658 c570f23f-e606-0410-a88d-b1316a301751 --- .../texk/web2c/hitexdir/hintview/man/hintview.1 | 228 + .../texk/web2c/hitexdir/hintview/src/Makefile | 77 + .../texk/web2c/hitexdir/hintview/src/basetypes.h | 45 + .../texk/web2c/hitexdir/hintview/src/error.h | 59 + .../texk/web2c/hitexdir/hintview/src/format.h | 357 + .../source/texk/web2c/hitexdir/hintview/src/get.c | 624 ++ .../source/texk/web2c/hitexdir/hintview/src/get.h | 190 + .../texk/web2c/hitexdir/hintview/src/hfonts.c | 596 ++ .../texk/web2c/hitexdir/hintview/src/hfonts.h | 101 + .../source/texk/web2c/hitexdir/hintview/src/hint.c | 3775 ++++++++++ .../source/texk/web2c/hitexdir/hintview/src/hint.h | 167 + .../texk/web2c/hitexdir/hintview/src/hrender.c | 1436 ++++ .../texk/web2c/hitexdir/hintview/src/hrender.h | 45 + .../source/texk/web2c/hitexdir/hintview/src/htex.c | 3757 ++++++++++ .../source/texk/web2c/hitexdir/hintview/src/htex.h | 1958 +++++ .../source/texk/web2c/hitexdir/hintview/src/main.c | 406 ++ .../source/texk/web2c/hitexdir/hintview/src/main.h | 22 + .../texk/web2c/hitexdir/hintview/src/renderOGL.c | 553 ++ .../web2c/hitexdir/hintview/src/rendernative.h | 52 + .../texk/web2c/hitexdir/hintview/src/stb_image.h | 7559 ++++++++++++++++++++ .../texk/web2c/hitexdir/hintview/src/tables.c | 78 + 21 files changed, 22085 insertions(+) create mode 100644 Build/source/texk/web2c/hitexdir/hintview/man/hintview.1 create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/Makefile create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/basetypes.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/error.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/format.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/get.c create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/get.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/hfonts.c create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/hfonts.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/hint.c create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/hint.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/hrender.c create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/hrender.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/htex.c create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/htex.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/main.c create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/main.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/renderOGL.c create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/rendernative.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/stb_image.h create mode 100644 Build/source/texk/web2c/hitexdir/hintview/src/tables.c diff --git a/Build/source/texk/web2c/hitexdir/hintview/man/hintview.1 b/Build/source/texk/web2c/hitexdir/hintview/man/hintview.1 new file mode 100644 index 00000000000..dc6d7626e7b --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/man/hintview.1 @@ -0,0 +1,228 @@ +.TH HINTVIEW1 "11 November 2021" "Version 1.0" +.\"===================================================================== +.if n .ds MF Metafont +.if t .ds MF Metafont +.if t .ds TX \fRT\\h'-0.1667m'\\v'0.20v'E\\v'-0.20v'\\h'-0.125m'X\fP +.if n .ds TX TeX +.ie t .ds OX \fIT\v'+0.25m'E\v'-0.25m'X\fP +.el .ds OX TeX +.\" BX definition must follow TX so BX can use TX +.if t .ds BX \fRB\s-2IB\s0\fP\*(TX +.if n .ds BX BibTeX +.\" LX definition must follow TX so LX can use TX +.if t .ds LX \fRL\\h'-0.36m'\\v'-0.15v'\s-2A\s0\\h'-0.15m'\\v'0.15v'\fP\*(TX +.if n .ds LX LaTeX +.if t .ds AX \fRA\\h'-0.1667m'\\v'0.20v'M\\v'-0.20v'\\h'-0.125m'S\fP\*(TX +.if n .ds AX AmSTeX +.if t .ds AY \fRA\\h'-0.1667m'\\v'0.20v'M\\v'-0.20v'\\h'-0.125m'S\fP\*(LX +.if n .ds AY AmSLaTeX +.if n .ds WB Web +.if t .ds WB W\s-2EB\s0 +.\"===================================================================== +.SH NAME +hintview\- displaying HINT files +.SH SYNOPSIS +.B hintview +.RI [ options ] +.RI [ file ] +.\"===================================================================== +.SH DESCRIPTION +.B Hintview +displays a binary +.B HINT +file, usually with the +.BR .hnt +extension. +.PP +The binary +.B HINT +file format is designed for on-screen reading of documents. +Using hintview to display a +.B HINT +file, its content will dynamically +adapt to the available display area. For complete information on the +.B HINT +file format and programs to view +.B HINT +files, see +.BR https://hint.userweb.mwn.de . +.\"===================================================================== +.SH OPTIONS +This version of +.B hintview +understands the following command line options: +.TP +.B -a +Start in autoreload mode. If in autoreload mode, the viewer will check +the modification time of the displayed +.B HINT +file each time the cursor enters the window. +If the modification time has changed, the file is reloaded. +The viewer attempts to position the new file at about the same position +as the old file. This attempt might fail if large scale changes have +been made to the file. +.sp +See also the +.B Ctrl-A +and the +.B Ctrl-R +key. +.TP +.B -h +Open the document on the "home" page. The home page is a location +specified by the document author as a good starting point for reading +the document. +.sp +See also the +.B Ctrl-H +key. +.TP +.B --help +Print help message and exit. +.TP +.B -n +Start the viewer in "night" mode. In this mode the viewer will display +the document using a dark background and light foreground color to reduce +eye strain in a surrounding with dim lighting. +.sp +See also the +.B Ctrl-N +key. +.TP +.BI -o +Show a clickable outline of the content. NOT YET IMPLEMENTED. +.sp +See also the +.B Ctrl-O +key. +.TP +.B --version +Print version information and exit. +.TP +.B -z +Zoom to 100%. The +.B HINT +viewer can display a document using a given +zoom factor to make characters appear larger or smaller to either +improve readability or increase the amount of text that can be displayed +in a given window. This option resets the zoom factor so that a 10pt +font will appear on screen at the same size as it would appear in a +printed book. +.sp +See also the +.B Ctrl-Z +key. +.\"===================================================================== +.SH KEYSTROKES +.B Hintview +recognizes the following keystrokes when typed in its window. +.TP +.B Ctrl-A +Toggle autoreload mode. See also the +.B -a +option and the +.B Ctrl-R +key. +.TP +.B Ctrl-F +Open the +.B Find +dialog. NOT YET IMPLEMENTED. +.TP +.BR Home , \ Ctrl-H +Move to the "home" page. The home page is a location specified by the +document author as a good starting point for reading the document. +.TP +.B Ctrl-N +Toggle between night and day mode. See also the +.B -n +option. +.TP +.B Ctrl-O +Show a clickable outline of the content. NOT YET IMPLEMENTED. +.TP +.B Page-Down +Move to the next page. +.TP +.B Page-Up +Move to the previous page. +.TP +.B Ctrl-R +Reload the content. The file is reloaded and the viewer +attempts to position the new file at about the same position +as the old file. This attempt might fail if large scale changes have +been made to the file. See also the +.B Ctrl-A +key and the +.B -a +option. +.TP +.B Ctrl-Z +Zoom to 100%. See also the +.B -z +option. +.\"===================================================================== +.SH MOUSE ACTIONS +The following actions are executed using the +.BR left\ mouse\ button . +.TP +.B Click +If the mouse is positioned on a link, move to the link target. Links are +displayed in blue color. +.TP +.B Drag +Dragging from the top-left to the bottom-right increases the zoom factor. +Dragging in the opposite direction decreases the zoom factor. See also the +.B Ctrl-Z +key and the +.B -z +option. +.\"===================================================================== +.SH NOTES +This is a simple, bare-bone implementation of a program to render +.B HINT +files. Other programs to display +.B HINT +files are available on the +.B HINT +project home page at +.B https://hint.userweb.mwn.de/ +where you find viewers for the Windows and Android operating systems. +.sp +Currently the best way to produce +.B HINT +files is the use of +.BR hitex , +a version of \*(TX that produces +.B HINT +files as its output. The +.B HINT +file format is described in +.IR "HINT: The file format" +which is available as a book or in electronic form from the +.B HINT +project home page. The +.B HINT +file format is independent of \*(TX and allows the implementation +of generators for all kind of word-processors. The +.B hintview +program however uses parts of Donald E. Knuth's implementation +of \*(TX, notably its line breaking routine, to produce good +quality rendering of documents. +.\"===================================================================== +.SH AVAILABILITY +.B hintview +is tested on the Linux platform but +should compile on a large variety of machine architectures +and operating systems. +It is part of the \*(TX Live distribution. +.PP +.\"===================================================================== +.SH "SEE ALSO" +.BR hitex (1), +.BR histretch (1), +.BR hishrink (1). +.\"===================================================================== +.SH AUTHORS +Martin Ruckert +.\" vim: syntax=nroff diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/Makefile b/Build/source/texk/web2c/hitexdir/hintview/src/Makefile new file mode 100644 index 00000000000..6fb3b15d5e9 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/Makefile @@ -0,0 +1,77 @@ + +CC = gcc +CFLAGS = -g -Og -DDEBUG -Wall +LDFLAGS = -g -Og +#GL_DEFINES = -DGLEW_STATIC -DTW_NO_DIRECT3D -DTW_NO_LIB_PRAGMA -DTW_STATIC -D_CRT_SECURE_NO_WARNINGS + +FT_INCLUDES = -I/usr/include/freetype2 +GL_INCLUDES = $(FT_INCLUDES) + + +HFILES = hint.h htex.h format.h get.h basetypes.h error.h \ + hrender.h rendernative.h hfonts.h + +WFILES = format.w hint.w htex.ch btex.w + +HINT_FILES = get.c hint.c tables.c htex.c hrender.c hfonts.c \ + $(HFILES) $(WFILES) + + +OBJ=main.o renderOGL.o get.o hint.o tables.o htex.o hrender.o hfonts.o + +ifeq (Msys,$(shell uname -o)) +LIBS= ../external/glfw-3.1.2/msys.build/src/libglfw3.a ../external/libglew.a -lfreetype \ + -lm -lz +# -ldl -lm -lX11 -lpthread -lXrandr -lXinerama -lXi -lXcursor -lGL -lz +else +LIBS= -l:libglfw3.a -l:libGLEW.a -ldl -lfreetype -lX11 -lXrandr -lXinerama -lXi -lXcursor -lGL -lz -lpthread -lm +endif + +all: hintview + +.SUFFIXES: + + +hint.o: hint.c + $(CC) $(CFLAGS) -Wno-unused-but-set-variable -o $@ -c $< + +htex.o: htex.c + $(CC) $(CFLAGS) -Wno-parentheses -Wno-unused-but-set-variable -Wno-maybe-uninitialized -o $@ -c $< + +renderOGL.o: renderOGL.c + $(CC) $(FT_INCLUDES) $(CFLAGS) -o $@ -c $< + +hfonts.o: hfonts.c + $(CC) $(CFLAGS) $(FT_INCLUDES) -o $@ -c $< + +%.o: %.c + $(CC) $(CFLAGS) -o $@ -c $< + +hintview: $(OBJ) + $(CC) $(LDFLAGS) $(OBJ) $(LIBS) -o $@ + +SRC= $(OBJ:.o=.c) $(HFILES) main.h stb_image.h Makefile +DIST_SRC = $(SRC:%=src/%) +DIST_MAN = man/hintview.1 + +hintview.tgz: + tar -c -C .. --transform 's,^,hintview/,' -z -f $@ $(DIST_SRC) $(DIST_MAN) + +BINDIR=/usr/local/bin +MANDIR=/usr/local/man + +install: hintview + strip hintview + install -t $(BINDIR) --mode=755 hintview + install -t $(MANDIR)/man1 --mode=644 ../man/hintview.1 + + +.PHONY: www +www: hintview hintview.tgz + cp hintview hintview.tgz ../man/hintview.1 ../../www/linux/ + +clean: + rm -f *.o *~ *.dvi *.log *.aux + rm -f hintview hintview.tgz + $(MAKE) -C ../../hint viewlinux || true + diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/basetypes.h b/Build/source/texk/web2c/hitexdir/hintview/src/basetypes.h new file mode 100644 index 00000000000..1db75956522 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/basetypes.h @@ -0,0 +1,45 @@ + /*503:*/ + #line 9953 "format.w" + +#ifndef __BASETYPES_H__ +#define __BASETYPES_H__ +#include +#include +#ifndef _STDLIB_H +#define _STDLIB_H +#endif +#ifdef _MSC_VER +#include +#define uint8_t UINT8 +#define uint16_t UINT16 +#define uint32_t UINT32 +#define uint64_t UINT64 +#define int8_t INT8 +#define int16_t INT16 +#define int32_t INT32 +#define bool BOOL +#define true (0==0) +#define false (!true) +#define __SIZEOF_FLOAT__ 4 +#define __SIZEOF_DOUBLE__ 8 +#define PRIx64 "I64x" +#pragma warning( disable : 4244 4996 4127) +#else +#include +#include +#include +#include +#ifdef WIN32 +#include +#endif +#endif +typedef float float32_t; +typedef double float64_t; +#if __SIZEOF_FLOAT__!=4 +#error float32 type must have size 4 +#endif +#if __SIZEOF_DOUBLE__!=8 +#error float64 type must have size 8 +#endif +#endif + /*:503*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/error.h b/Build/source/texk/web2c/hitexdir/hintview/src/error.h new file mode 100644 index 00000000000..d283a6cd52e --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/error.h @@ -0,0 +1,59 @@ +/*357:*/ +#line 7147 "hint.w" + +#ifndef _ERROR_H +#define _ERROR_H +#include +#include +#include +#define MAX_HERROR 1024 +extern char herror_string[MAX_HERROR]; +extern FILE*hlog; +extern void hint_end(void); +extern jmp_buf error_exit; + +#ifdef _MSC_VER +#define snprintf(S,N,F,...) _snprintf(S,N,F,__VA_ARGS__) +#ifndef _CONSOLE +#pragma warning(disable : 4996) +extern void hmessage(char*title,char*format,...); +#define MESSAGE(...) hmessage("HINT",__VA_ARGS__) + +extern int herror(char*title,char*msg); +#define ERROR_MESSAGE herror("HINT ERROR",herror_string) +#endif +#endif + +#ifdef __ANDROID__ +#include + +#define LOG(...) __android_log_print(ANDROID_LOG_DEBUG,__FILE__,__VA_ARGS__) +#define MESSAGE(...) __android_log_print(ANDROID_LOG_INFO,__FILE__, __VA_ARGS__) +#define ERROR_MESSAGE __android_log_print(ANDROID_LOG_ERROR,__FILE__,"ERROR: %s\n", herror_string) + +#endif + +#ifndef LOG +#define LOG(...) (fprintf(hlog,__VA_ARGS__),fflush(hlog)) +#endif + +#ifndef MESSAGE +#define MESSAGE(...) (fprintf(stderr,__VA_ARGS__),fflush(stderr)) +#endif + +#ifndef ERROR_MESSAGE +#define ERROR_MESSAGE fprintf(stderr,"ERROR: %s\n",herror_string) +#endif + +#ifndef QUIT +#define QUIT(...) (snprintf(herror_string,MAX_HERROR-1,__VA_ARGS__),\ + ERROR_MESSAGE,hint_end(),longjmp(error_exit,1)) +#endif + + +#ifndef HINT_TRY +#define HINT_TRY if ((herror_string[0]= 0,setjmp(error_exit)==0)) +#endif + +#endif +/*:357*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/format.h b/Build/source/texk/web2c/hitexdir/hintview/src/format.h new file mode 100644 index 00000000000..fa3ac640948 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/format.h @@ -0,0 +1,357 @@ + /*504:*/ + #line 10003 "format.w" + +#ifndef _HFORMAT_H_ +#define _HFORMAT_H_ + /*349:*/ + #line 7407 "format.w" + +#define REF_RNG(K,N) if ((int)(N)>max_ref[K]) QUIT("Reference %d to %s out of range [0 - %d]",\ + (N),definition_name[K],max_ref[K]) + /*:349*/ /*350:*/ + #line 7421 "format.w" + +#define MAX_REF(K) ((K)==label_kind?0xFFFF:0xFF) + /*:350*/ /*423:*/ + #line 8876 "format.w" + +#ifdef WIN32 +#define SIZE_F "0x%x" +#else +#define SIZE_F "0x%zx" +#endif +#ifdef DEBUG +#define DBG(FLAGS,...) ((debugflags & (FLAGS))?LOG(__VA_ARGS__):0) +#else +#define DBG(FLAGS,...) 0 +#endif +#define DBGTAG(A,P) DBG(DBGTAGS,"tag [%s,%d] at " SIZE_F "\n",NAME(A),INFO(A),(P)-hstart) + +#define RNG(S,N,A,Z) \ + if ((int)(N)<(int)(A)||(int)(N)>(int)(Z)) QUIT(S " %d out of range [%d - %d]",N,A,Z) + +#define TAGERR(A) QUIT("Unknown tag [%s,%d] at " SIZE_F "\n",NAME(A),INFO(A),hpos-hstart) + /*:423*/ + #line 10006 "format.w" + + /*410:*/ + #line 8614 "format.w" + +#define DBGNONE 0x0 +#define DBGBASIC 0x1 +#define DBGTAGS 0x2 +#define DBGNODE 0x4 +#define DBGDEF 0x8 +#define DBGDIR 0x10 +#define DBGRANGE 0x20 +#define DBGFLOAT 0x40 +#define DBGCOMPRESS 0x80 +#define DBGBUFFER 0X100 +#define DBGFLEX 0x200 +#define DBGBISON 0x400 +#define DBGTEX 0x800 +#define DBGPAGE 0x1000 +#define DBGFONT 0x2000 +#define DBGRENDER 0x4000 +#define DBGLABEL 0x8000 + /*:410*/ + #line 10007 "format.w" + + /*12:*/ + #line 635 "format.w" + +#define KIND(T) (((T)>>3)&0x1F) +#define NAME(T) content_name[KIND(T)] +#define INFO(T) ((T)&0x7) +#define TAG(K,I) (((K)<<3)|(I)) + /*:12*/ /*77:*/ + #line 1625 "format.w" + +#define ROUND(X) ((int)((X)>=0.0?floor((X)+0.5):ceil((X)-0.5))) + /*:77*/ /*112:*/ + #line 2126 "format.w" + +#define RUNNING_DIMEN 0xC0000000 + /*:112*/ /*131:*/ + #line 2468 "format.w" + +#define ZERO_GLUE(G) ((G).w.w==0 && (G).w.h==0.0 && (G).w.v==0.0 && (G).p.f==0.0 && (G).m.f==0.0) + /*:131*/ /*236:*/ + #line 4700 "format.w" + +#define HINT_NO_POS 0xFFFFFFFF + /*:236*/ /*243:*/ + #line 4898 "format.w" + +#define LABEL_UNDEF 0 +#define LABEL_TOP 1 +#define LABEL_BOT 2 +#define LABEL_MID 3 + /*:243*/ /*294:*/ + #line 6079 "format.w" + +#define ALLOCATE(R,S,T) ((R)= (T *)calloc((S),sizeof(T)),\ + (((R)==NULL)?QUIT("Out of memory for " #R):0)) +#define REALLOCATE(R,S,T) ((R)= (T *)realloc((R),(S)*sizeof(T)),\ + (((R)==NULL)?QUIT("Out of memory for " #R):0)) + /*:294*/ /*302:*/ + #line 6244 "format.w" + +#define HINT_VERSION 1 +#define HINT_SUB_VERSION 3 +#define MAX_BANNER 256 + /*:302*/ /*315:*/ + #line 6447 "format.w" + +#define MAX_TAG_DISTANCE 32 + /*:315*/ + #line 10008 "format.w" + + /*6:*/ + #line 487 "format.w" + +#define DEF_KIND(C,D,N) C##_kind= N +typedef enum{ /*9:*/ + #line 556 "format.w" + +DEF_KIND(text,text,0), +DEF_KIND(list,list,1), +DEF_KIND(param,param,2), +DEF_KIND(xdimen,xdimen,3), +DEF_KIND(adjust,adjust,4), +DEF_KIND(glyph,font,5), +DEF_KIND(kern,dimen,6), +DEF_KIND(glue,glue,7), +DEF_KIND(ligature,ligature,8), +DEF_KIND(disc,disc,9), +DEF_KIND(language,language,10), +DEF_KIND(rule,rule,11), +DEF_KIND(image,image,12), +DEF_KIND(leaders,leaders,13), +DEF_KIND(baseline,baseline,14), +DEF_KIND(hbox,hbox,15), +DEF_KIND(vbox,vbox,16), +DEF_KIND(par,par,17), +DEF_KIND(math,math,18), +DEF_KIND(table,table,19), +DEF_KIND(item,item,20), +DEF_KIND(hset,hset,21), +DEF_KIND(vset,vset,22), +DEF_KIND(hpack,hpack,23), +DEF_KIND(vpack,vpack,24), +DEF_KIND(stream,stream,25), +DEF_KIND(page,page,26), +DEF_KIND(range,range,27), +DEF_KIND(link,label,28), +DEF_KIND(undefined2,undefined2,29), +DEF_KIND(undefined3,undefined3,30), +DEF_KIND(penalty,int,31) + + /*:9*/ + #line 489 "format.w" +, /*10:*/ + #line 595 "format.w" + +font_kind= glyph_kind,int_kind= penalty_kind,dimen_kind= kern_kind,label_kind= link_kind,outline_kind= link_kind + /*:10*/ + #line 489 "format.w" +}kind_t; +#undef DEF_KIND + /*:6*/ /*11:*/ + #line 621 "format.w" + +typedef enum{b000= 0,b001= 1,b010= 2,b011= 3,b100= 4,b101= 5,b110= 6,b111= 7}info_t; + /*:11*/ /*56:*/ + #line 1294 "format.w" + + +#define FLT_M_BITS 23 +#define FLT_E_BITS 8 +#define FLT_EXCESS 127 + +#define DBL_M_BITS 52 +#define DBL_E_BITS 11 +#define DBL_EXCESS 1023 + + /*:56*/ /*76:*/ + #line 1620 "format.w" + +typedef int32_t scaled_t; +#define ONE ((scaled_t)(1<<16)) + /*:76*/ /*81:*/ + #line 1676 "format.w" + +typedef scaled_t dimen_t; +#define MAX_DIMEN ((dimen_t)(0x3FFFFFFF)) + /*:81*/ /*86:*/ + #line 1732 "format.w" + +typedef struct{ +dimen_t w;float32_t h,v; +}xdimen_t; + /*:86*/ /*95:*/ + #line 1877 "format.w" + +typedef enum{normal_o= 0,fil_o= 1,fill_o= 2,filll_o= 3}order_t; +typedef struct{float64_t f;order_t o;}stretch_t; +typedef union{float32_t f;uint32_t u;}stch_t; + /*:95*/ /*130:*/ + #line 2458 "format.w" + +typedef struct{ +xdimen_t w; +stretch_t p,m; +}glue_t; + /*:130*/ /*180:*/ + #line 3881 "format.w" + +typedef struct{ +glue_t bs,ls; +dimen_t lsl; +}baseline_t; + /*:180*/ /*242:*/ + #line 4883 "format.w" + +typedef struct +{uint32_t pos; +uint8_t where; +bool used; +int next; +uint32_t pos0;uint8_t f; +}label_t; + /*:242*/ /*373:*/ + #line 7941 "format.w" + +#define MAX_FONT_PARAMS 11 + /*:373*/ + #line 10009 "format.w" + + /*385:*/ + #line 8176 "format.w" + +typedef enum{ +zero_int_no= 0, +pretolerance_no= 1, +tolerance_no= 2, +line_penalty_no= 3, +hyphen_penalty_no= 4, +ex_hyphen_penalty_no= 5, +club_penalty_no= 6, +widow_penalty_no= 7, +display_widow_penalty_no= 8, +broken_penalty_no= 9, +pre_display_penalty_no= 10, +post_display_penalty_no= 11, +inter_line_penalty_no= 12, +double_hyphen_demerits_no= 13, +final_hyphen_demerits_no= 14, +adj_demerits_no= 15, +looseness_no= 16, +time_no= 17, +day_no= 18, +month_no= 19, +year_no= 20, +hang_after_no= 21, +floating_penalty_no= 22 +}int_no_t; +#define MAX_INT_DEFAULT floating_penalty_no + /*:385*/ /*387:*/ + #line 8249 "format.w" + +typedef enum{ +zero_dimen_no= 0, +hsize_dimen_no= 1, +vsize_dimen_no= 2, +line_skip_limit_no= 3, +max_depth_no= 4, +split_max_depth_no= 5, +hang_indent_no= 6, +emergency_stretch_no= 7, +quad_no= 8, +math_quad_no= 9 +}dimen_no_t; +#define MAX_DIMEN_DEFAULT math_quad_no + /*:387*/ /*389:*/ + #line 8294 "format.w" + +typedef enum{ +zero_xdimen_no= 0, +hsize_xdimen_no= 1, +vsize_xdimen_no= 2 +}xdimen_no_t; +#define MAX_XDIMEN_DEFAULT vsize_xdimen_no + /*:389*/ /*391:*/ + #line 8318 "format.w" + +typedef enum{ +zero_skip_no= 0, +fil_skip_no= 1, +fill_skip_no= 2, +line_skip_no= 3, +baseline_skip_no= 4, +above_display_skip_no= 5, +below_display_skip_no= 6, +above_display_short_skip_no= 7, +below_display_short_skip_no= 8, +left_skip_no= 9, +right_skip_no= 10, +top_skip_no= 11, +split_top_skip_no= 12, +tab_skip_no= 13, +par_fill_skip_no= 14 +}glue_no_t; +#define MAX_GLUE_DEFAULT par_fill_skip_no + /*:391*/ /*393:*/ + #line 8404 "format.w" + +typedef enum{ +zero_baseline_no= 0 +}baseline_no_t; +#define MAX_BASELINE_DEFAULT zero_baseline_no + /*:393*/ /*395:*/ + #line 8429 "format.w" + +typedef enum{ +zero_label_no= 0 +}label_no_t; +#define MAX_LABEL_DEFAULT zero_label_no + /*:395*/ /*397:*/ + #line 8443 "format.w" + +typedef enum{ +zero_stream_no= 0 +}stream_no_t; +#define MAX_STREAM_DEFAULT zero_stream_no + /*:397*/ /*399:*/ + #line 8459 "format.w" + +typedef enum{ +zero_page_no= 0 +}page_no_t; +#define MAX_PAGE_DEFAULT zero_page_no + /*:399*/ /*401:*/ + #line 8476 "format.w" + +typedef enum{ +zero_range_no= 0 +}range_no_t; +#define MAX_RANGE_DEFAULT zero_range_no + /*:401*/ + #line 10010 "format.w" + + +extern const char*content_name[32]; +extern const char*definition_name[32]; +extern unsigned int debugflags; +extern FILE*hlog; +extern int max_fixed[32],max_default[32],max_ref[32],max_outline; +extern int32_t int_defaults[MAX_INT_DEFAULT+1]; +extern dimen_t dimen_defaults[MAX_DIMEN_DEFAULT+1]; +extern xdimen_t xdimen_defaults[MAX_XDIMEN_DEFAULT+1]; +extern glue_t glue_defaults[MAX_GLUE_DEFAULT+1]; +extern baseline_t baseline_defaults[MAX_BASELINE_DEFAULT+1]; +extern label_t label_defaults[MAX_LABEL_DEFAULT+1]; +extern signed char hnode_size[0x100]; + +#endif + /*:504*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/get.c b/Build/source/texk/web2c/hitexdir/hintview/src/get.c new file mode 100644 index 00000000000..300c7db66f2 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/get.c @@ -0,0 +1,624 @@ + /*508:*/ + #line 10151 "format.w" + +#include "basetypes.h" +#include +#include +#include +#include +#include +#include + +#include "error.h" +#include "format.h" +#include "get.h" + + /*244:*/ + #line 4905 "format.w" + +label_t*labels; +int first_label= -1; + /*:244*/ /*292:*/ + #line 6068 "format.w" + +range_pos_t*range_pos; +int next_range= 1,max_range; +int*page_on; + /*:292*/ /*303:*/ + #line 6254 "format.w" + +char hbanner[MAX_BANNER+1]; + /*:303*/ /*310:*/ + #line 6392 "format.w" + +uint8_t*hpos= NULL,*hstart= NULL,*hend= NULL,*hpos0= NULL; + /*:310*/ /*316:*/ + #line 6473 "format.w" + +char*hin_name= NULL; +uint64_t hin_size= 0; +uint8_t*hin_addr= NULL; +uint64_t hin_time= 0; + /*:316*/ /*372:*/ + #line 7937 "format.w" + +char**hfont_name; + /*:372*/ /*411:*/ + #line 8637 "format.w" + +unsigned int debugflags= DBGNONE; +int option_utf8= false; +int option_hex= false; +int option_force= false; +int option_global= false; +int option_aux= false; +int option_compress= false; +char*stem_name= NULL; +int stem_length= 0; + /*:411*/ /*414:*/ + #line 8771 "format.w" + +FILE*hin= NULL,*hout= NULL,*hlog= NULL; + /*:414*/ + #line 10164 "format.w" + + + /*317:*/ + #line 6480 "format.w" + +#ifndef USE_MMAP +void hget_unmap(void) +{if(hin_addr!=NULL)free(hin_addr); +hin_addr= NULL; +hin_size= 0; +} +bool hget_map(void) +{FILE*f; +struct stat st; +size_t s,t; +uint64_t u; +f= fopen(hin_name,"rb"); +if(f==NULL) +{MESSAGE("Unable to open file: %s\n",hin_name);return false;} +if(stat(hin_name,&st)<0) +{MESSAGE("Unable to obtain file size: %s\n",hin_name); +fclose(f); +return false; +} +if(st.st_size==0) +{MESSAGE("File %s is empty\n",hin_name); +fclose(f); +return false; +} +u= st.st_size; +if(hin_addr!=NULL)hget_unmap(); +hin_addr= malloc(u); +if(hin_addr==NULL) +{MESSAGE("Unable to allocate 0x%"PRIx64" byte for File %s\n",u,hin_name); +fclose(f); +return 0; +} +t= 0; +do{ +s= fread(hin_addr+t,1,u,f); +if(s<=0) +{MESSAGE("Unable to read file %s\n",hin_name); +fclose(f); +free(hin_addr); +hin_addr= NULL; +return false; +} +t= t+s; +u= u-s; +}while(u>0); +hin_size= st.st_size; +hin_time= st.st_mtime; +return true; +} + +#else + +#include + +void hget_unmap(void) +{munmap(hin_addr,hin_size); +hin_addr= NULL; +hin_size= 0; +} + +bool hget_map(void) +{struct stat st; +int fd; +fd= open(hin_name,O_RDONLY,0); +if(fd<0) +{MESSAGE("Unable to open file %s\n",hin_name);return false;} +if(fstat(fd,&st)<0) +{MESSAGE("Unable to get file size\n"); +close(fd); +return false; +} +if(st.st_size==0) +{MESSAGE("File %s is empty\n",hin_name); +close(fd); +return false; +} +if(hin_addr!=NULL)hget_unmap(); +hin_size= st.st_size; +hin_time= st.st_mtime; +hin_addr= mmap(NULL,hin_size,PROT_READ,MAP_PRIVATE,fd,0); +if(hin_addr==MAP_FAILED) +{close(fd); +hin_addr= NULL;hin_size= 0; +MESSAGE("Unable to map file into memory\n"); +return 0; +} +close(fd); +return hin_size; +} +#endif + + /*:317*/ + #line 10166 "format.w" + + /*304:*/ + #line 6258 "format.w" + + +bool hcheck_banner(char*magic) +{int hbanner_size= 0; +int v; +char*t; +t= hbanner; +if(strncmp(magic,hbanner,4)!=0) +{MESSAGE("This is not a %s file\n",magic);return false;} +else t+= 4; +hbanner_size= (int)strnlen(hbanner,MAX_BANNER); +if(hbanner[hbanner_size-1]!='\n') +{MESSAGE("Banner exceeds maximum size=0x%x\n",MAX_BANNER);return false;} +if(*t!=' ') +{MESSAGE("Space expected in banner after %s\n",magic);return false;} +else t++; +v= strtol(t,&t,10); +if(v!=HINT_VERSION) +{MESSAGE("Wrong HINT version: got %d, expected %d\n",v,HINT_VERSION);return false;} +if(*t!='.') +{MESSAGE("Dot expected in banner after HINT version number\n");return false;} +else t++; +v= strtol(t,&t,10); +if(v!=HINT_SUB_VERSION) +{MESSAGE("Wrong HINT subversion: got %d, expected %d\n",v,HINT_SUB_VERSION);return false;} +if(*t!=' '&&*t!='\n') +{MESSAGE("Space expected in banner after HINT subversion\n");return false;} +LOG("%s file version %d.%d:%s",magic,HINT_VERSION,HINT_SUB_VERSION,t); +DBG(DBGDIR,"banner size=0x%x\n",hbanner_size); +return true; +} + /*:304*/ + #line 10167 "format.w" + + /*326:*/ + #line 6813 "format.w" + +entry_t*dir= NULL; +uint16_t section_no,max_section_no; +void new_directory(uint32_t entries) +{DBG(DBGDIR,"Creating directory with %d entries\n",entries); +RNG("Directory entries",entries,3,0x10000); +max_section_no= entries-1; +ALLOCATE(dir,entries,entry_t); +dir[0].section_no= 0;dir[1].section_no= 1;dir[2].section_no= 2; +} + /*:326*/ /*327:*/ + #line 6826 "format.w" + +void hset_entry(entry_t*e,uint16_t i,uint32_t size,uint32_t xsize,char*file_name) +{e->section_no= i; +e->size= size;e->xsize= xsize; +if(file_name==NULL||*file_name==0) +e->file_name= NULL; +else +e->file_name= strdup(file_name); +DBG(DBGDIR,"Creating entry %d: \"%s\" size=0x%x xsize=0x%x\n",i,file_name,size,xsize); +} + /*:327*/ + #line 10168 "format.w" + + + /*305:*/ + #line 6298 "format.w" + +void hget_banner(void) +{int i; +for(i= 0;i0) +{hpos0= hpos= hstart= dir[n].buffer; +hend= hstart+dir[n].xsize; +} +else +{hpos0= hpos= hstart= hin_addr+dir[n].pos; +hend= hstart+dir[n].size; +if(dir[n].xsize>0)hdecompress(n); +} +} + /*:320*/ /*337:*/ + #line 7051 "format.w" + +void hget_entry(entry_t*e) +{ /*15:*/ + #line 712 "format.w" + +uint8_t a,z; +uint32_t node_pos= hpos-hstart; +if(hpos>=hend)QUIT("Attempt to read a start byte at the end of the section"); +HGETTAG(a); + /*:15*/ + #line 7053 "format.w" + +DBG(DBGDIR,"Reading directory entry\n"); +switch(a) +{case TAG(0,b000+0):HGET_ENTRY(b000+0,*e);break; +case TAG(0,b000+1):HGET_ENTRY(b000+1,*e);break; +case TAG(0,b000+2):HGET_ENTRY(b000+2,*e);break; +case TAG(0,b000+3):HGET_ENTRY(b000+3,*e);break; +case TAG(0,b100+0):HGET_ENTRY(b100+0,*e);break; +case TAG(0,b100+1):HGET_ENTRY(b100+1,*e);break; +case TAG(0,b100+2):HGET_ENTRY(b100+2,*e);break; +case TAG(0,b100+3):HGET_ENTRY(b100+3,*e);break; +default:TAGERR(a);break; +} + /*16:*/ + #line 719 "format.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); + /*:16*/ + #line 7066 "format.w" + +} + /*:337*/ /*338:*/ + #line 7083 "format.w" + +static void hget_root(entry_t*root) +{DBG(DBGDIR,"Root entry at "SIZE_F"\n",hpos-hstart); +hget_entry(root); +root->pos= hpos-hstart; +max_section_no= root->section_no; +root->section_no= 0; +if(max_section_no<2)QUIT("Sections 0, 1, and 2 are mandatory"); +} + +void hget_directory(void) +{int i; +entry_t root= {0}; +hget_root(&root); +DBG(DBGDIR,"Directory\n"); +new_directory(max_section_no+1); +dir[0]= root; +DBG(DBGDIR,"Directory entry 1 at 0x%"PRIx64"\n",dir[0].pos); +hget_section(0); +for(i= 1;i<=max_section_no;i++) +{hget_entry(&(dir[i])); +dir[i].pos= dir[i-1].pos+dir[i-1].size; +DBG(DBGDIR,"Section %d at 0x%"PRIx64"\n",i,dir[i].pos); +} +} + +void hclear_dir(void) +{int i; +if(dir==NULL)return; +for(i= 0;i<3;i++) +if(dir[i].xsize>0&&dir[i].buffer!=NULL)free(dir[i].buffer); +free(dir);dir= NULL; +} + + /*:338*/ /*356:*/ + #line 7499 "format.w" + +void hget_max_definitions(void) +{kind_t k; + /*15:*/ + #line 712 "format.w" + +uint8_t a,z; +uint32_t node_pos= hpos-hstart; +if(hpos>=hend)QUIT("Attempt to read a start byte at the end of the section"); +HGETTAG(a); + /*:15*/ + #line 7502 "format.w" + +if(a!=TAG(list_kind,0))QUIT("Start of maximum list expected"); +for(k= 0;k<32;k++)max_ref[k]= max_default[k];max_outline= -1; +while(true) +{int n; +if(hpos>=hend)QUIT("Unexpected end of maximum list"); +node_pos= hpos-hstart; +HGETTAG(a); +k= KIND(a); +if(k==list_kind)break; +if(INFO(a)&b001)HGET16(n);else n= HGET8; +switch(a) +{ /*238:*/ + #line 4835 "format.w" + + +case TAG(outline_kind,b100): +case TAG(outline_kind,b101):max_outline= n; +DBG(DBGDEF|DBGLABEL,"max(outline) = %d\n",max_outline);break; + /*:238*/ + #line 7514 "format.w" + +default: +if(max_fixed[k]>max_default[k]) +QUIT("Maximum value for kind %s not supported",definition_name[k]); +RNG("Maximum number",n,max_default[k],MAX_REF(k)); +max_ref[k]= n; +DBG(DBGDEF,"max(%s) = %d\n",definition_name[k],max_ref[k]); +break; +} + /*16:*/ + #line 719 "format.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); + /*:16*/ + #line 7523 "format.w" + +} +if(INFO(a)!=0)QUIT("End of maximum list with info %d",INFO(a)); +} + /*:356*/ + #line 10170 "format.w" + + /*52:*/ + #line 1228 "format.w" + +#define HGET_UTF8C(X) (X)= HGET8; if ((X&0xC0)!=0x80) \ + QUIT("UTF8 continuation byte expected at " SIZE_F " got 0x%02X\n",hpos-hstart-1,X) + +uint32_t hget_utf8(void) +{uint8_t a; +a= HGET8; +if(a<0x80)return a; +else +{if((a&0xE0)==0xC0) +{uint8_t b;HGET_UTF8C(b); +return((a&~0xE0)<<6)+(b&~0xC0); +} +else if((a&0xF0)==0xE0) +{uint8_t b,c;HGET_UTF8C(b);HGET_UTF8C(c); +return((a&~0xF0)<<12)+((b&~0xC0)<<6)+(c&~0xC0); +} +else if((a&0xF8)==0xF0) +{uint8_t b,c,d;HGET_UTF8C(b);HGET_UTF8C(c);HGET_UTF8C(d); +return((a&~0xF8)<<18)+((b&~0xC0)<<12)+((c&~0xC0)<<6)+(d&~0xC0); +} +else QUIT("UTF8 byte sequence expected"); +} +} + /*:52*/ /*75:*/ + #line 1603 "format.w" + +float32_t hget_float32(void) +{union{float32_t d;uint32_t bits;}u; +HGET32(u.bits); +return u.d; +} + /*:75*/ /*145:*/ + #line 2822 "format.w" + +void hget_size_boundary(info_t info) +{uint32_t n; +if(info<2)return; +n= HGET8; +if(n-1!=0x100-info)QUIT("Size boundary byte 0x%x with info value %d at "SIZE_F, +n,info,hpos-hstart-1); +} + +uint32_t hget_list_size(info_t info) +{uint32_t n= 0; +if(info==1)return 0; +else if(info==2)n= HGET8; +else if(info==3)HGET16(n); +else if(info==4)HGET24(n); +else if(info==5)HGET32(n); +else QUIT("List info %d must be 1, 2, 3, 4, or 5",info); +return n; +} + +void hget_list(list_t*l) +{if(KIND(*hpos)!=list_kind&& +KIND(*hpos)!=text_kind&&KIND(*hpos)!=param_kind) +QUIT("List expected at 0x%x",(uint32_t)(hpos-hstart)); +else +{ + /*15:*/ + #line 712 "format.w" + +uint8_t a,z; +uint32_t node_pos= hpos-hstart; +if(hpos>=hend)QUIT("Attempt to read a start byte at the end of the section"); +HGETTAG(a); + /*:15*/ + #line 2848 "format.w" + +l->k= KIND(a); +HGET_LIST(INFO(a),*l); + /*16:*/ + #line 719 "format.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); + /*:16*/ + #line 2851 "format.w" + +DBG(DBGNODE,"Get list at 0x%x size=%u\n",l->p,l->s); +} +} + /*:145*/ + #line 10171 "format.w" + + /*426:*/ + #line 8943 "format.w" + +uint32_t hff_list_pos= 0,hff_list_size= 0; +uint8_t hff_tag; +void hff_hpos(void) +{signed char i,k; +hff_tag= *hpos; +DBGTAG(hff_tag,hpos); +i= hnode_size[hff_tag]; +if(i>0){hpos= hpos+i;return;} +else if(i<0) +{k= 1+(i&0x3);i= i>>2; +hpos= hpos-i; +while(k>0) +{hff_hpos();k--;} +hpos++; +return; +} +else if(hff_tag<=TAG(param_kind,5)) + /*428:*/ + #line 8988 "format.w" + +switch(INFO(hff_tag)){ +case 1:hff_list_pos= hpos-hstart+1;hff_list_size= 0;hpos= hpos+2;return; +case 2:hpos++;hff_list_size= HGET8;hff_list_pos= hpos-hstart+1;hpos= hpos+1+hff_list_size+1+1+1;return; +case 3:hpos++;HGET16(hff_list_size);hff_list_pos= hpos-hstart+1;hpos= hpos+1+hff_list_size+1+2+1;return; +case 4:hpos++;HGET24(hff_list_size);hff_list_pos= hpos-hstart+1;hpos= hpos+1+hff_list_size+1+3+1;return; +case 5:hpos++;HGET32(hff_list_size);hff_list_pos= hpos-hstart+1;hpos= hpos+1+hff_list_size+1+4+1;return; +} + /*:428*/ + #line 8961 "format.w" + +TAGERR(hff_tag); +} + /*:426*/ /*457:*/ + #line 9396 "format.w" + +float32_t hteg_float32(void) +{union{float32_t d;uint32_t bits;}u; +HTEG32(u.bits); +return u.d; +} + /*:457*/ /*495:*/ + #line 9824 "format.w" + +void hteg_size_boundary(info_t info) +{uint32_t n; +if(info<2)return; +n= HTEG8; +if(n-1!=0x100-info)QUIT("List size boundary byte 0x%x does not match info value %d at "SIZE_F, +n,info,hpos-hstart); +} + +uint32_t hteg_list_size(info_t info) +{uint32_t n; +if(info==1)return 0; +else if(info==2)n= HTEG8; +else if(info==3)HTEG16(n); +else if(info==4)HTEG24(n); +else if(info==5)HTEG32(n); +else QUIT("List info %d must be 1, 2, 3, 4, or 5",info); +return n; +} + +void hteg_list(list_t*l) +{ /*454:*/ + #line 9368 "format.w" + +uint8_t a,z; +uint32_t node_pos= hpos-hstart; +if(hpos<=hstart)return; +HTEGTAG(z); + /*:454*/ + #line 9845 "format.w" + +if(KIND(z)!=list_kind&&KIND(z)!=text_kind&&KIND(z)!=param_kind) +QUIT("List expected at 0x%x",(uint32_t)(hpos-hstart)); +else +{uint32_t s; +l->k= KIND(z); +l->s= hteg_list_size(INFO(z)); +hteg_size_boundary(INFO(z)); +hpos= hpos-l->s; +l->p= hpos-hstart; +hteg_size_boundary(INFO(z)); +s= hteg_list_size(INFO(z)); +if(s!=l->s)QUIT("List sizes at "SIZE_F" and 0x%x do not match 0x%x != 0x%x", +hpos-hstart,node_pos-1,s,l->s); + /*455:*/ + #line 9375 "format.w" + +HTEGTAG(a); +if(a!=z)QUIT("Tag mismatch [%s,%d]!=[%s,%d] at "SIZE_F" to 0x%x\n",NAME(a),INFO(a),NAME(z),INFO(z), +hpos-hstart,node_pos-1); + /*:455*/ + #line 9859 "format.w" + +} +} + +void hteg_param_list(list_t*l) +{if(KIND(*(hpos-1))!=param_kind)return; +hteg_list(l); +} + + + /*:495*/ + #line 10172 "format.w" + + /*:508*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/get.h b/Build/source/texk/web2c/hitexdir/hintview/src/get.h new file mode 100644 index 00000000000..31bebae04e7 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/get.h @@ -0,0 +1,190 @@ + /*507:*/ + #line 10106 "format.w" + + /*1:*/ + #line 328 "format.w" + +typedef struct{uint32_t c;uint8_t f;}glyph_t; + /*:1*/ /*113:*/ + #line 2153 "format.w" + +typedef struct{ +dimen_t h,d,w; +}rule_t; + /*:113*/ /*122:*/ + #line 2267 "format.w" + +typedef struct{ +bool x; +xdimen_t d; +}kern_t; + /*:122*/ /*140:*/ + #line 2688 "format.w" + +typedef struct{ +kind_t k; +uint32_t p; +uint32_t s; +}list_t; + /*:140*/ /*148:*/ + #line 3110 "format.w" + +typedef enum{txt_font= 0x00,txt_global= 0x08,txt_local= 0x11, +txt_cc= 0x1D,txt_node= 0x1E,txt_hyphen= 0x1F, +txt_glue= 0x20,txt_ignore= 0xFB}txt_t; + /*:148*/ /*159:*/ + #line 3377 "format.w" + +typedef struct{kind_t k;int n;}ref_t; + /*:159*/ /*160:*/ + #line 3414 "format.w" + +typedef struct{dimen_t h,d,w,a;float32_t r;int8_t s,o;list_t l;}box_t; + /*:160*/ /*187:*/ + #line 3970 "format.w" + +typedef struct{uint8_t f;list_t l;}lig_t; + /*:187*/ /*195:*/ + #line 4087 "format.w" + +typedef struct disc_t{bool x;list_t p,q;uint8_t r;}disc_t; + /*:195*/ /*228:*/ + #line 4608 "format.w" + +typedef struct{ +uint16_t n; +dimen_t w,h; +stretch_t p,m; +}image_t; + /*:228*/ /*264:*/ + #line 5247 "format.w" + +typedef struct{ +uint8_t*t; +int s; +int d; +uint16_t r; +}outline_t; + /*:264*/ /*291:*/ + #line 6063 "format.w" + +typedef +struct{uint8_t pg;uint32_t pos;bool on;int link;}range_pos_t; + /*:291*/ + #line 10107 "format.w" + + /*325:*/ + #line 6799 "format.w" + +typedef struct{ +uint64_t pos; +uint32_t size,xsize; +uint16_t section_no; +char*file_name; +uint8_t*buffer; +uint32_t bsize; +}entry_t; + /*:325*/ + #line 10108 "format.w" + + /*37:*/ + #line 1062 "format.w" + +#define HGET_STRING(S) S= (char*)hpos;\ + while(hpos +#include FT_FREETYPE_H +#include "hfonts.h" +#include "hrender.h" +#include "rendernative.h" + +/*308:*/ +#line 5715 "hint.w" + +static font_t*fonts[0x100]= {NULL}; +/*:308*//*314:*/ +#line 5844 "hint.w" + +static gcache_t g_undefined= {0}; +/*:314*//*348:*/ +#line 6991 "hint.w" + +static FT_Library ft_library= NULL; +/*:348*/ +#line 7608 "hint.w" + +/*35:*/ +#line 562 "hint.w" + +extern uint16_t hglyph_section(uint8_t f); +extern int32_t font_at_size(uint8_t f); +/*:35*/ +#line 7609 "hint.w" + +/*313:*/ +#line 5801 "hint.w" + +#define G0_BITS 7 +#define G0_SIZE (1<>G0_BITS){ +unsigned int cc1= (cc>>G0_BITS); +if(cc1>>G123_BITS){ +unsigned int cc2= cc1>>G123_BITS; +if(cc2>>G123_BITS){ +unsigned int cc3= cc2>>G123_BITS; +if(cc3>>G123_BITS)return NULL; +else if(f->g3&& +f->g3[cc3&G123_MASK]&& +f->g3[cc3&G123_MASK][cc2&G123_MASK]&& +f->g3[cc3&G123_MASK][cc2&G123_MASK][cc1&G123_MASK]) +return f->g3[cc3&G123_MASK][cc2&G123_MASK][cc1&G123_MASK][cc&G0_MASK]; +} +else if(f->g2&&f->g2[cc2&G123_MASK]&&f->g2[cc2&G123_MASK][cc1&G123_MASK]) +return f->g2[cc2&G123_MASK][cc1&G123_MASK][cc&G0_MASK]; +} +else if(f->g1&&f->g1[cc1&G123_MASK]) +return f->g1[cc1&G123_MASK][cc&G0_MASK]; +} +else if(f->g0) +return f->g0[cc]; +return NULL; +} +/*:313*//*315:*/ +#line 5848 "hint.w" + +static gcache_t*hnew_g(gcache_t**g) +{if(*g==NULL) +*g= calloc(1,sizeof(gcache_t)); +if(*g==NULL) +return&g_undefined; +(*g)->ff= no_format; +return*g; +} + +static gcache_t*hnew_g0(gcache_t***g,unsigned int cc) +{unsigned int cc0= cc&G0_MASK; +if(*g==NULL) +*g= calloc(G0_SIZE,sizeof(gcache_t*)); +if(*g==NULL) +return&g_undefined; +return hnew_g((*g)+cc0); +} + +static gcache_t*hnew_g1(gcache_t****g,unsigned int cc) +{unsigned int cc1= (cc>>G0_BITS)&G123_MASK; +if(*g==NULL) +*g= calloc(G123_SIZE,sizeof(gcache_t**)); +if(*g==NULL) +return&g_undefined; +return hnew_g0((*g)+cc1,cc); +} +static gcache_t*hnew_g2(gcache_t*****g,unsigned int cc) +{unsigned int cc2= (cc>>(G123_BITS+G0_BITS))&G123_MASK; +if(*g==NULL) +*g= calloc(G123_SIZE,sizeof(gcache_t***)); +if(*g==NULL) +return&g_undefined; +return hnew_g1((*g)+cc2,cc); +} + +static gcache_t*hnew_g3(gcache_t******g,unsigned int cc) +{unsigned int cc3= (cc>>(G123_BITS+G123_BITS+G0_BITS))&G123_MASK; +if(*g==NULL) +*g= calloc(G123_SIZE,sizeof(gcache_t****)); +if(*g==NULL) +return&g_undefined; +return hnew_g2((*g)+cc3,cc); +} + + +static gcache_t*hnew_glyph(font_t*f,unsigned int cc) +{if(ccg0),cc); +else if(ccg1),cc); +else if(ccg2),cc); +else if(ccg3),cc); +else return&g_undefined; +} +/*:315*/ +#line 7610 "hint.w" + + +/*352:*/ +#line 7025 "hint.w" + + +int unpack_ft_file(font_t*f) +{int e; +/*349:*/ +#line 6995 "hint.w" + +if(ft_library==NULL) +{int e= FT_Init_FreeType(&ft_library); +if(e)QUIT("Unable to initialize the FreeType library"); +} +/*:349*/ +#line 7029 "hint.w" + +f->hpxs= 72.27/xdpi; +f->vpxs= 72.27/ydpi; +e= FT_New_Memory_Face(ft_library, +f->font_data,f->data_size,0,&(f->tt.face)); +if(e)return 0; +/*353:*/ +#line 7050 "hint.w" + +e= FT_Select_Charmap(f->tt.face,FT_ENCODING_ADOBE_CUSTOM); +if(e)LOG("Unable to select custom encoding for font %d\n",f->n); +/*:353*/ +#line 7035 "hint.w" + +/*354:*/ +#line 7058 "hint.w" + +e= FT_Set_Char_Size( +f->tt.face, +0, +(FT_F26Dot6)(0.5+(f->s*64.0*72.0/72.27)), +72.27/f->hpxs, +72.27/f->vpxs); +if(e)QUIT("Unable to set FreeType glyph size"); +FT_Set_Transform(f->tt.face,0,0); +/*:354*/ +#line 7036 "hint.w" + +f->ff= ft_format; +return 1; +} +/*:352*//*355:*/ +#line 7081 "hint.w" + +static void ft_unpack_glyph(font_t*f,gcache_t*g,uint32_t cc) +{int e,i; + +i= FT_Get_Char_Index(f->tt.face,cc); +e= FT_Load_Glyph( +f->tt.face, +i, +FT_LOAD_RENDER|FT_LOAD_TARGET_NORMAL); +if(e)QUIT("Unable to render FreeType glyph %c (%u)",(char)cc,cc); + +g->w= f->tt.face->glyph->bitmap.width; +g->h= f->tt.face->glyph->bitmap.rows; +g->hoff= -f->tt.face->glyph->bitmap_left; +g->voff= f->tt.face->glyph->bitmap_top-1; +g->bits= calloc(g->w*g->h,1); +if(g->bits==NULL)QUIT("Out of memory for FreeType glyph %c (%u)",(char)cc,cc); +memcpy(g->bits,f->tt.face->glyph->bitmap.buffer,g->w*g->h); + +g->ff= ft_format; +nativeSetFreeType(g); +} + +/*:355*/ +#line 7612 "hint.w" + + +/*340:*/ +#line 6696 "hint.w" + +#define PK_READ_1_BYTE() (data[i++]) +#define PK_READ_2_BYTE() (k= PK_READ_1_BYTE(),k= k<<8,k= k+data[i++],k) +#define PK_READ_3_BYTE() (k= PK_READ_2_BYTE(),k= k<<8,k= k+data[i++],k) +#define PK_READ_4_BYTE() (k= PK_READ_3_BYTE(),k= k<<8,k= k+data[i++],k) +/*:340*//*342:*/ +#line 6723 "hint.w" + +#define read_nybble(P) ((P).j&1?((P).data[(P).j++>>1]&0xF):(((P).data[(P).j++>>1]>>4)&0xF)) +/*:342*//*343:*/ +#line 6749 "hint.w" + +static int packed_number(pk_parse_t*p) +{int i,k; +i= read_nybble(*p); +if(i==0) +{do{k= read_nybble(*p);i++;}while(k==0); +while(i--> 0)k= k*16+read_nybble(*p); +return k-15+(13-p->f)*16+p->f; +} +else if(i<=p->f)return i; +else if(i<14)return(i-p->f-1)*16+read_nybble(*p)+p->f+1; +else +{if(i==14)p->r= packed_number(p); +else p->r= 1; +return packed_number(p); +} +} +/*:343*//*344:*/ +#line 6778 "hint.w" + +static void pk_runlength(gcache_t*g,unsigned char*data){ +pk_parse_t p; +int x,y; +unsigned char*bits; +int n; +unsigned char gray; +bits= g->bits= (unsigned char*)calloc(g->w*g->h,1); +if(bits==NULL){g->w= g->h= 0;return;} +p.j= 0; +p.r= 0; +p.f= g->pk.flag>>4; +p.data= data; +n= 0; +if((g->pk.flag>>3)&1)gray= 0x00; +else gray= 0xff; +y= 0; +while(yh){ +x= 0; +while(x<(int)g->w) +{int d; +if(n<=0){ +n= packed_number(&p); +gray= ~gray; +} +d= g->w-x; +if(d> n)d= n; +for(;d> 0;d--,x++,n--) +bits[y*g->w+x]= gray; +} +y++; +while(p.r> 0&&yh) +{int k; +for(k= 0;kw;k++) +bits[y*g->w+k]= bits[(y-1)*g->w+k]; +p.r--; +y++; +} +} +} +/*:344*//*345:*/ +#line 6830 "hint.w" + +static void pk_bitmap(gcache_t*g,unsigned char*data){ +unsigned char*bits; +int x,y; +unsigned char mask; + +g->bits= bits= (unsigned char*)calloc(g->w*g->h,1); +if(bits==NULL){g->w= g->h= 0;return;} +mask= 0x80; +for(y= 0;yh;y++) +for(x= 0;xw;x++) +{if(*data&mask) +bits[y*g->w+x]= 0x00; +else +bits[y*g->w+x]= 0xFF; +mask= mask>>1; +if(mask==0){data++;mask= 0x80;} +} +} +/*:345*//*346:*/ +#line 6853 "hint.w" + + +static void pkunpack_glyph(gcache_t*g) +{int i,k; +unsigned char*data; +if(g==NULL||g->pk.encoding==NULL)return; +g->ff= pk_format; +if(g->bits!=NULL)return; +#if 0 +DBG(DBGRENDER,"Unpacking glyph %c (0x%x)",g->cc,g->cc); +#endif +data= g->pk.encoding; +i= 0; +if((g->pk.flag&7)<4) +{i= i+3; +i= i+1; +g->w= PK_READ_1_BYTE(); +g->h= PK_READ_1_BYTE(); +g->hoff= (signed char)PK_READ_1_BYTE(); +g->voff= (signed char)PK_READ_1_BYTE(); +} +else if((g->pk.flag&7)<7) +{i= i+3; +i= i+2; +g->w= PK_READ_2_BYTE(); +g->h= PK_READ_2_BYTE(); +g->hoff= (signed short int)PK_READ_2_BYTE(); +g->voff= (signed short int)PK_READ_2_BYTE(); +} +else +{i= i+4; +i= i+8; +g->w= PK_READ_4_BYTE(); +g->h= PK_READ_4_BYTE(); +g->hoff= (signed int)PK_READ_4_BYTE(); +g->voff= (signed int)PK_READ_4_BYTE(); +} +if((g->pk.flag>>4)==14)pk_bitmap(g,data+i); +else pk_runlength(g,data+i); +nativeSetPK(g); +} +/*:346*//*347:*/ +#line 6898 "hint.w" + + +static gcache_t*hnew_glyph(font_t*pk,unsigned int cc); + + + +#define PK_XXX1 240 +#define PK_XXX2 241 +#define PK_XXX3 242 +#define PK_XXX4 243 +#define PK_YYY 244 +#define PK_POST 245 +#define PK_NO_OP 246 +#define PK_PRE 247 +#define PK_ID 89 + + +int unpack_pk_file(font_t*pk) + +{int i,j; +unsigned int k; +unsigned char flag; +unsigned char*data; +data= pk->font_data; +i= 0; +while(idata_size) +switch(flag= data[i++]) +{case PK_XXX1:j= PK_READ_1_BYTE();i= i+j;break; +case PK_XXX2:j= PK_READ_2_BYTE();i= i+j;break; +case PK_XXX3:j= PK_READ_3_BYTE();i= i+j;break; +case PK_XXX4:j= PK_READ_4_BYTE();i= i+j;break; +case PK_YYY:i= i+4;break; +case PK_NO_OP:break; +case PK_PRE: +{int csize; +pk->pk.id= PK_READ_1_BYTE(); +if(pk->pk.id!=PK_ID)return 0; +csize= PK_READ_1_BYTE(); +pk->pk.pk_comment= pk->font_data+i; +i= i+csize; +pk->pk.ds= PK_READ_4_BYTE()/(double)(1<<20); +pk->pk.cs= PK_READ_4_BYTE(); +pk->hpxs= (double)(1<<16)/PK_READ_4_BYTE(); +pk->vpxs= (double)(1<<16)/PK_READ_4_BYTE(); +if(pk->pk.ds!=pk->s) +{double m= pk->s/pk->pk.ds; +pk->hpxs*= m; +pk->vpxs*= m; +} +#if 0 +pk->comment[csize]= 0; +#endif +} +break; +case PK_POST:break; +case 248:case 249:case 250:case 251:case 252:case 253:case 254:case 255:break; +default: +{ +unsigned int pl; +unsigned int cc; +gcache_t*g; +if((flag&7)==7) +{pl= PK_READ_4_BYTE(); +cc= PK_READ_4_BYTE(); +}else if((flag&4)==4) +{pl= PK_READ_2_BYTE(); +cc= PK_READ_1_BYTE(); +pl= pl+((flag&3)<<16); +}else +{pl= PK_READ_1_BYTE(); +cc= PK_READ_1_BYTE(); +pl= pl+((flag&3)<<8); +} +g= hnew_glyph(pk,cc); +g->pk.flag= flag; +g->pk.encoding= data+i; +g->bits= NULL; +i= i+pl; +} +break; +} +return 1; +} + +/*:347*/ +#line 7614 "hint.w" + + +/*309:*/ +#line 5721 "hint.w" + +struct font_s*hget_font(unsigned char f) +{font_t*fp; +if(fonts[f]!=NULL)return fonts[f]; +DBG(DBGFONT,"Decoding new font %d\n",f); +if(f> max_ref[font_kind]) +QUIT("Undefined font %d\n",f); +fp= calloc(1,sizeof(*fp)); +if(fp==NULL) +QUIT("Out of memory for font %d",f); +else +{unsigned char*spos,*sstart,*send; +spos= hpos;sstart= hstart;send= hend; +fp->n= f; +hget_section(hglyph_section(f)); +fp->font_data= hstart; +fp->data_size= hend-hstart; +hpos= spos;hstart= sstart;hend= send; +} +fp->s= font_at_size(f)/(double)(1<<16); +/*337:*/ +#line 6633 "hint.w" + +if(fp->font_data[0]==0xF7&&fp->font_data[1]==0x59) +{fp->ff= pk_format; +if(!unpack_pk_file(fp)){free(fp);fp= NULL;} +} +/*:337*//*356:*/ +#line 7108 "hint.w" + +else if(unpack_ft_file(fp)) +fp->ff= ft_format; +else +{QUIT("Font format not supported for font %d\n",fp->n); +free(fp);fp= NULL; +} +/*:356*/ +#line 5741 "hint.w" + +fonts[f]= fp; +return fonts[f]; +} +/*:309*//*311:*/ +#line 5759 "hint.w" + +static void hfree_glyph_cache(font_t*f,bool rm); + +void hint_clear_fonts(bool rm) +{int f; +DBG(DBGFONT,rm?"Clear font data":"Clear native glyph data"); +for(f= 0;f<=max_ref[font_kind];f++) +if(fonts[f]!=NULL) +{hfree_glyph_cache(fonts[f],rm); +if(rm){free(fonts[f]);fonts[f]= NULL;} +} +} +/*:311*//*316:*/ +#line 5912 "hint.w" + +static void hfree_g0(struct gcache_s**g,bool rm) +{int i; +if(g==NULL)return; +for(i= 0;ibits!=NULL)free(g[i]->bits); +free(g[i]);g[i]= NULL;} +} +} + +static void hfree_g1(struct gcache_s***g,bool rm) +{int i; +if(g==NULL)return; +for(i= 0;ig0!=NULL) +{hfree_g0(f->g0,rm); +if(rm){free(f->g0);f->g0= NULL;} +} +if(f->g1!=NULL) +{hfree_g1(f->g1,rm); +if(rm){free(f->g1);f->g1= NULL;} +} +if(f->g2!=NULL) +{hfree_g2(f->g2,rm); +if(rm){free(f->g2);f->g2= NULL;} +} +if(f->g3!=NULL) +{hfree_g3(f->g3,rm); +if(rm){free(f->g3);f->g3= NULL;} +} +} +/*:316*//*318:*/ +#line 6038 "hint.w" + +gcache_t*hget_glyph(font_t*f,unsigned int cc) +{ +gcache_t*g= NULL; +g= g_lookup(f,cc); +if(g==NULL) +{if(f->ff==ft_format) +g= hnew_glyph(f,cc); +else +return NULL; +} +if(g->ff==no_format) +{if(f->ff==pk_format)pkunpack_glyph(g); +else if(f->ff==ft_format)ft_unpack_glyph(f,g,cc); +else QUIT("Font format not supported"); +} +return g; +} +/*:318*//*320:*/ +#line 6070 "hint.w" + +void render_char(int x,int y,struct font_s*f,uint32_t cc,uint8_t s) + +{double w,h,dx,dy; +gcache_t*g= hget_glyph(f,cc); +if(g==NULL)return; + +dx= (double)g->hoff*f->hpxs; +dy= (double)g->voff*f->vpxs; +w= (double)g->w*f->hpxs; +h= (double)g->h*f->vpxs; +nativeGlyph(SP2PT(x),dx,SP2PT(y),dy,w,h,g,s); +} + +/*:320*/ +#line 7616 "hint.w" + + +/*:375*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/hfonts.h b/Build/source/texk/web2c/hitexdir/hintview/src/hfonts.h new file mode 100644 index 00000000000..550c6a9a751 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/hfonts.h @@ -0,0 +1,101 @@ +/*374:*/ +#line 7585 "hint.w" + +#ifndef _HFONTS_H +#define _HFONTS_H + +/*306:*/ +#line 5687 "hint.w" + +typedef enum{no_format,pk_format,ft_format}font_format_t; +/*:306*//*307:*/ +#line 5699 "hint.w" + +/*338:*/ +#line 6672 "hint.w" + + +typedef struct +{unsigned char*pk_comment; +unsigned int cs; +double ds; +unsigned char id; +}pk_t; +/*:338*//*350:*/ +#line 7003 "hint.w" + +typedef struct +{FT_Face face; +}ft_t; +/*:350*//*351:*/ +#line 7010 "hint.w" + +typedef struct +{int dummy; +}ftg_t; +/*:351*/ +#line 5700 "hint.w" + + +typedef struct font_s{ +unsigned char n; +unsigned char*font_data; +int data_size; +double s; +double hpxs,vpxs; +/*312:*/ +#line 5787 "hint.w" + +struct gcache_s**g0; +struct gcache_s***g1; +struct gcache_s****g2; +struct gcache_s*****g3; + +/*:312*/ +#line 5708 "hint.w" + +font_format_t ff; +union{pk_t pk;ft_t tt;}; +}font_t; +/*:307*//*317:*/ +#line 5999 "hint.w" + +/*339:*/ +#line 6685 "hint.w" + +typedef struct +{unsigned char flag; +unsigned char*encoding; +}pkg_t; +/*:339*//*341:*/ +#line 6712 "hint.w" + +typedef struct{ +int j; +int r; +int f; +unsigned char*data; +}pk_parse_t; +/*:341*/ +#line 6000 "hint.w" + + +struct gcache_s{ +int w,h; +int hoff,voff; +unsigned char*bits; +unsigned int GLtexture; +font_format_t ff; +union{ +pkg_t pk; +ftg_t tt; +}; +}; +typedef struct gcache_s gcache_t; +/*:317*/ +#line 7589 "hint.w" + + + +#endif +/*:374*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/hint.c b/Build/source/texk/web2c/hitexdir/hintview/src/hint.c new file mode 100644 index 00000000000..a021046481b --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/hint.c @@ -0,0 +1,3775 @@ +/*371:*/ +#line 7506 "hint.w" + +#include "basetypes.h" +#include +#include +#include +#include "error.h" +#include "format.h" +#include "hrender.h" +#include "get.h" +#include "htex.h" +#include "hint.h" + +/*82:*/ +#line 1279 "hint.w" + +#define HGET_STRING(S) S= (char*)hpos;\ + while(hpos>4; glue_sign(p)= (x<0?shrinking:(x> 0?stretching:normal));}\ +list_ptr(p)= hget_list_pointer(); +/*:115*//*122:*/ +#line 1950 "hint.w" + +#define HGET_SET(I) \ + scaled x, st, sh; uint8_t sto, sho; \ + p= new_null_box();\ + HGET32(height(p)); if ((I)&b001) HGET32(depth(p)); HGET32(width(p));\ + if ((I)&b010) HGET32(shift_amount(p));\ + HGET_STRETCH(st,sto); HGET_STRETCH(sh,sho);\ + if ((I)&b100) x= hget_xdimen_node(); else x= hget_xdimen_ref(HGET8);\ + list_ptr(p)= hget_list_pointer(); +/*:122*//*128:*/ +#line 2093 "hint.w" + +#define HGET_PACK(K,I) \ +{ pointer p; scaled x, s= 0, d; uint8_t m; \ + if ((I)&b001) m= additional; else m= exactly; \ + if ((I)&b010) HGET32(s);\ + if (K==vpack_kind) HGET32(d); \ + if ((I)&b100) x= hget_xdimen_node(); else x= hget_xdimen_ref(HGET8);\ + p= hget_list_pointer(); \ + if (K==vpack_kind) p= vpackage(p,x,m,d); else p= hpack(p,x,m);\ + shift_amount(p)= s;\ + happend_to_vlist(p);} +/*:128*//*132:*/ +#line 2160 "hint.w" + +#define HGET_KERN(I) \ +pointer p; scaled x; \ +if (((I)&b011)==0) x= hget_dimen_ref(HGET8);\ +else if (((I)&b011)==1) x= hget_xdimen_ref(HGET8);\ +else if (((I)&b011)==2) HGET32(x);\ +else if (((I)&b011)==3) x= hget_xdimen_node();\ +p= new_kern(x);\ +if ((I)&b100) subtype(p)= explicit;\ +tail_append(p); +/*:132*//*136:*/ +#line 2211 "hint.w" + +#define HGET_LEADERS(I) \ +{pointer p;\ + if ((I)&b100)p= hget_glue_node(); else {p= spec2glue(zero_glue); incr(glue_ref_count(zero_glue));} \ +subtype(p)= a_leaders+((I)&b011)-1;\ +if (KIND(*hpos)==rule_kind) leader_ptr(p)= hget_rule_node(); \ +else if (KIND(*hpos)==hbox_kind) leader_ptr(p)= hget_hbox_node(); \ +else leader_ptr(p)= hget_vbox_node();\ +tail_append(p);} +/*:136*//*140:*/ +#line 2257 "hint.w" + +#define HGET_BASELINE(I) \ + cur_list.bs_pos= hpos-1; \ + if((I)&b001) HGET32(cur_lsl); else cur_lsl= 0; \ + if((I)&b100) cur_bs= hget_glue_spec(); else cur_bs= zero_glue; \ + if((I)&b010) cur_ls= hget_glue_spec(); else cur_ls= zero_glue; +/*:140*//*145:*/ +#line 2311 "hint.w" + +#define HGET_LIG(I) \ +{pointer p,q;uint8_t f;\ +f= HGET8;\ +if ((I)==7) q= hget_list_pointer(); else q= hget_text_list(I);\ +if (q==null) QUIT("Ligature with empty list");\ +p= new_ligature(f, character(q), link(q)); tail_append(p);\ +link(q)= null; flush_node_list(q);\ +} +/*:145*//*149:*/ +#line 2363 "hint.w" + +#define HGET_DISC(I)\ + pointer p= new_disc(); \ + if ((I)&b100) {uint8_t r; r= HGET8; set_replace_count(p,r); \ + if ((r&0x80)==0) set_auto_disc(p); }\ + else set_auto_disc(p); \ + if ((I)&b010) pre_break(p)= hget_list_pointer(); \ + if ((I)&b001) post_break(p)= hget_list_pointer(); +/*:149*//*155:*/ +#line 2436 "hint.w" + +#define HGET_PAR(I) \ +{ scaled x= 0;\ + param_def_t *q;\ + if ((I)==b100) q= hget_param_list_ref(HGET8);\ + if ((I)&b100) x= hget_xdimen_node(); else x= hget_xdimen_ref(HGET8);\ + if ((I)&b010) q= hget_param_list_node(); \ + else if ((I)!=b100) q= hget_param_list_ref(HGET8);\ + hget_paragraph(x,0,q);\ +} +/*:155*//*172:*/ +#line 2921 "hint.w" + +#define HGET_MATH(I) \ +{ param_def_t *q; pointer p= null, a= null;\ +if ((I)&b100) q= hget_param_list_node(); else q= hget_param_list_ref(HGET8);\ +if ((I)&b010) a= hget_hbox_node(); \ +p= hget_list_pointer(); \ +if ((I)&b001) a= hget_hbox_node();\ +hset_param_list(q); hdisplay(p,a,((I)&b010)!=0); hrestore_param_list();\ +} +/*:172*//*178:*/ +#line 2990 "hint.w" + +#define HGET_ADJUST(I) \ +{ pointer p;\ + p= get_node(small_node_size); type(p)= adjust_node; subtype(p)= normal;\ + adjust_ptr(p)= hget_list_pointer(); \ + tail_append(p);\ +} +/*:178*//*180:*/ +#line 3006 "hint.w" + +#define HGET_TABLE(I) \ +if(I&b010) ; else ;\ +if ((I)&b001) ; else ;\ +if ((I)&b100) hget_xdimen_node(); else hget_xdimen_ref(HGET8);\ +hget_list_pointer(); \ +hget_list_pointer(); +/*:180*//*185:*/ +#line 3102 "hint.w" + +#define HGET_STREAM(I) \ +{ param_def_t *q; pointer p;\ + p= get_node(ins_node_size); type(p)= ins_node;\ + subtype(p)= HGET8;RNG("Stream",subtype(p),1,254); \ + if ((I)&b010) q= hget_param_list_node(); else q= hget_param_list_ref(HGET8); \ + ins_ptr(p)= hget_list_pointer(); \ + if ((I)&b010) hset_stream_params(p,true,q); else hset_stream_params(p,false,q);\ + tail_append(p);} +/*:185*//*189:*/ +#line 3134 "hint.w" + +#define HGET_IMAGE(I) \ +{ pointer p;\ + p= get_node(image_node_size); type(p)= whatsit_node; subtype(p)= image_node;\ + HGET16(image_no(p));RNG("Section number",image_no(p),3,max_section_no); \ + if (I&b010) {HGET32(image_width(p)); HGET32(image_height(p));} \ + else image_width(p)= image_height(p)= 0;\ + if (I&b001) {HGET_STRETCH(image_stretch(p),image_stretch_order(p)); \ + HGET_STRETCH(image_shrink(p),image_shrink_order(p));}\ + else { image_stretch(p)= image_shrink(p)= 0;image_stretch_order(p)= image_shrink_order(p)= normal;}\ + tail_append(p);} +/*:189*//*193:*/ +#line 3176 "hint.w" + +#define HGET_LINK(I) \ +{ pointer p;\ + p= get_node(link_node_size); type(p)= whatsit_node;\ + if (I&b010) subtype(p)= start_link_node; else subtype(p)= end_link_node;\ + if (I&b001) HGET16(label_ref(p)); else label_ref(p)= HGET8; \ + RNG("label",label_ref(p),0,max_ref[label_kind]);\ + label_has_name(p)= 0;\ + tail_append(p);} +/*:193*/ +#line 7518 "hint.w" + +/*84:*/ +#line 1299 "hint.w" + +#define HTEG_XDIMEN(I,X) \ + if((I)&b001) (X).v= hteg_float32(); else (X).v= 0.0;\ + if((I)&b010) (X).h= hteg_float32(); else (X).h= 0.0;\ + if((I)&b100) HTEG32((X).w); else (X).w= 0;\ +/*:84*//*88:*/ +#line 1397 "hint.w" + +#define HTEG_STRETCH(F,O) { stch_t _st; HTEG32(_st.u); (O)= _st.u&3; _st.u&= ~3; (F)= (scaled)(_st.f*ONE); } +/*:88*//*90:*/ +#line 1417 "hint.w" + +#define HTEG_GLYPH(I) \ +{uint8_t f; uint32_t c;\ + f= HTEG8; REF_RNG(font_kind,f);\ + if (I==1) c= HTEG8;\ + else if (I==2) HTEG16(c);\ + else if (I==3) HTEG24(c);\ + else if (I==4) HTEG32(c);\ + tail_append(new_character(f,c));\ +} +/*:90*//*98:*/ +#line 1496 "hint.w" + +#define HTEG_RULE(I)\ +pointer p= new_rule();\ +if ((I)&b001) HTEG32(width(p)); else width(p)= null_flag;\ +if ((I)&b010) HTEG32(depth(p)); else depth(p)= null_flag;\ +if ((I)&b100) HTEG32(height(p)); else height(p)= null_flag; +/*:98*//*105:*/ +#line 1562 "hint.w" + +#define HTEG_GLUE(I) \ + p= get_node(glue_spec_size); \ + if(I==b111) width(p)= hget_xdimen_node();\ + if((I)&b001) HTEG_STRETCH(shrink(p),shrink_order(p)) else shrink(p)= 0, shrink_order(p)= normal;\ + if((I)&b010) HTEG_STRETCH(stretch(p),stretch_order(p)) else stretch(p)= 0, stretch_order(p)= normal;\ + if((I)!=b111) { if ((I)&b100) HGET32(width(p)); else width(p)= 0; } +/*:105*//*111:*/ +#line 1673 "hint.w" + +#define IS_LIST(X) (KIND(X)==list_kind || \ + KIND(X)==text_kind || KIND(X)==param_kind) +/*:111*//*116:*/ +#line 1839 "hint.w" + +#define HTEG_BOX(I) \ +p= new_null_box();\ +list_ptr(p)= hteg_list_pointer();\ +if ((I)&b100) {int8_t x= HTEG8; glue_order(p)= x&0xF;\ + x= x>>4; glue_sign(p)= (x<0?shrinking:(x> 0?stretching:normal));\ + glue_set(p)= hteg_float32(); }\ +if ((I)&b010) HTEG32(shift_amount(p));\ +HTEG32(width(p));\ +if ((I)&b001) HTEG32(depth(p));\ +HTEG32(height(p));\ +node_pos= hpos-hstart-1; +/*:116*//*123:*/ +#line 1962 "hint.w" + +#define HTEG_SET(I) \ + scaled x, st, sh; uint8_t sto, sho; \ + p= new_null_box();\ + list_ptr(p)= hteg_list_pointer();\ + if ((I)&b100) x= hteg_xdimen_node(); else x= hget_xdimen_ref(HTEG8);\ + HTEG_STRETCH(sh,sho);HTEG_STRETCH(st,sto);\ + if ((I)&b010) HTEG32(shift_amount(p)); \ + HTEG32(width(p));if ((I)&b001) HTEG32(depth(p));HTEG32(height(p)); \ + node_pos= hpos-hstart-1; +/*:123*//*129:*/ +#line 2106 "hint.w" + +#define HTEG_PACK(K,I) \ +{ pointer p; scaled x, s, d; uint8_t m; \ + p= hteg_list_pointer();\ + if ((I)&b100) x= hteg_xdimen_node(); else x= hget_xdimen_ref(HTEG8);\ + if (K==vpack_kind) HTEG32(d); \ + if ((I)&b010) HTEG32(s);\ + if ((I)&b001) m= additional; else m= exactly; \ + node_pos= hpos-hstart-1;\ + if (K==vpack_kind) p= vpackage(p,x,m,d); else p= hpack(p,x,m);\ + hprepend_to_vlist(p);} +/*:129*//*133:*/ +#line 2173 "hint.w" + +#define HTEG_KERN(I) \ +pointer p; scaled x; \ +if (((I)&b011)==0) x= hget_dimen_ref(HTEG8);\ +else if (((I)&b011)==1) x= hget_xdimen_ref(HTEG8);\ +else if (((I)&b011)==2) HTEG32(x);\ +else if (((I)&b011)==3) x= hteg_xdimen_node();\ +p= new_kern(x);\ +if ((I)&b100) subtype(p)= explicit;\ +tail_append(p); +/*:133*//*137:*/ +#line 2222 "hint.w" + +#define HTEG_LEADERS(I) \ +{pointer p,q;\ +if (KIND(*(hpos-1))==rule_kind) q= hteg_rule_node(); \ +else if (KIND(*(hpos-1))==hbox_kind) q= hteg_hbox_node(); \ +else q= hteg_vbox_node();\ +if ((I)&b100) p= hteg_glue_node(); else {p= spec2glue(zero_glue); incr(glue_ref_count(zero_glue));} \ +leader_ptr(p)= q;subtype(p)= a_leaders+((I)&b011)-1;\ +tail_append(p);} +/*:137*//*141:*/ +#line 2265 "hint.w" + +#define HTEG_BASELINE(I) \ + if((I)&b010) cur_ls= hteg_glue_spec(); else cur_ls= zero_glue; \ + if((I)&b100) cur_bs= hteg_glue_spec(); else cur_bs= zero_glue; \ + if((I)&b001) HTEG32(cur_lsl); else cur_lsl= 0; \ + cur_list.bs_pos= hpos-1; +/*:141*//*146:*/ +#line 2322 "hint.w" + +#define HTEG_LIG(I) \ +{pointer p,q;\ +if ((I)==7) q= hteg_list_pointer();\ +else {uint8_t *t= hpos; hpos= t-I; q= hget_text_list(I); hpos= t-I;}\ +if (q==null) QUIT("Ligature with empty list");\ +p= new_ligature(0, character(q), link(q)); tail_append(p);\ +link(q)= null; flush_node_list(q);\ +font(lig_char(p))= HTEG8;\ +} +/*:146*//*150:*/ +#line 2373 "hint.w" + +#define HTEG_DISC(I)\ + pointer p= new_disc(); \ + if ((I)&b001) post_break(p)= hteg_list_pointer(); \ + if ((I)&b010) pre_break(p)= hteg_list_pointer(); \ + if ((I)&b100) {uint8_t r; r= HTEG8; set_replace_count(p,r); \ + if ((r&0x80)==0) set_auto_disc(p); }\ + else set_auto_disc(p); +/*:150*//*173:*/ +#line 2932 "hint.w" + +#define HTEG_MATH(I) \ +{ param_def_t *q; pointer p= null, a= null;\ +if ((I)&b001) a= hteg_hbox_node();\ +p= hteg_list_pointer(); \ +if ((I)&b010) a= hteg_hbox_node(); \ +if ((I)&b100) q= hteg_param_list_node(); else q= hget_param_list_ref(HTEG8);\ +hset_param_list(q); hdisplay(p,a,((I)&b010)!=0); hrestore_param_list();\ +} +/*:173*//*181:*/ +#line 3015 "hint.w" + +#define HTEG_TABLE(I) \ +if(I&b010) ; else ;\ +if ((I)&b001) ; else ;\ +hteg_list_pointer(); \ +hteg_list_pointer(); \ +if ((I)&b100) hteg_xdimen_node(); else hget_xdimen_ref(HTEG8); +/*:181*//*186:*/ +#line 3113 "hint.w" + +#define HTEG_STREAM(I) \ +{pointer p= get_node(ins_node_size); type(p)= ins_node;\ + ins_ptr(p)= hteg_list_pointer();\ + if ((I)&b010) {param_def_t *q= hteg_param_list_node(); hset_stream_params(p,true,q);}\ + else {param_def_t *q= hget_param_list_ref(HTEG8); hset_stream_params(p,false,q);}\ + subtype(p)= HTEG8;RNG("Stream",subtype(p),1,254);\ + tail_append(p);} +/*:186*//*190:*/ +#line 3147 "hint.w" + +#define HTEG_IMAGE(I) \ +{ pointer p;\ + p= get_node(image_node_size); type(p)= whatsit_node; subtype(p)= image_node;\ + if (I&b001) {HTEG_STRETCH(image_shrink(p),image_shrink_order(p));\ + HTEG_STRETCH(image_stretch(p),image_stretch_order(p)); }\ + else { image_stretch(p)= image_shrink(p)= 0;image_stretch_order(p)= image_shrink_order(p)= normal;}\ + if (I&b010) {HTEG32(image_height(p)); HTEG32(image_width(p)); } \ + else image_width(p)= image_height(p)= 0;\ + HTEG16(image_no(p));RNG("Section number",image_no(p),3,max_section_no); \ + tail_append(p);} +/*:190*//*194:*/ +#line 3187 "hint.w" + +#define HTEG_LINK(I) \ +{ pointer p;\ + p= get_node(link_node_size); type(p)= whatsit_node;\ + if (I&b010) subtype(p)= start_link_node; else subtype(p)= end_link_node;\ + if (I&b001) HTEG16(label_ref(p)); else label_ref(p)= HTEG8; \ + RNG("label",label_ref(p),0,max_ref[label_kind]);\ + label_has_name(p)= 0;\ + tail_append(p);} +/*:194*/ +#line 7519 "hint.w" + + +/*21:*/ +#line 366 "hint.w" + +typedef struct{pointer bs,ls;scaled lsl;}bs_t; +/*:21*//*28:*/ +#line 476 "hint.w" + +typedef struct{ +char*n; +uint16_t m,q; +scaled s; +pointer g; +pointer h; +pointer p[MAX_FONT_PARAMS+1]; +}font_def_t; +extern font_def_t*font_def; +/*:28*//*37:*/ +#line 581 "hint.w" + +typedef struct param_t{ +uint8_t n,k; +int32_t v; +}param_t; + +typedef struct param_def_t{ +struct param_def_t*next; +param_t p;}param_def_t; +/*:37*/ +#line 7521 "hint.w" + + + +/*2:*/ +#line 191 "hint.w" + +pointer*pointer_def[32]= {NULL}; +/*:2*//*6:*/ +#line 240 "hint.w" + +int32_t*integer_def; +/*:6*//*10:*/ +#line 270 "hint.w" + +scaled*dimen_def; +/*:10*//*14:*/ +#line 300 "hint.w" + +xdimen_t*xdimen_def; +/*:14*//*22:*/ +#line 370 "hint.w" + +bs_t*baseline_def= NULL; +/*:22*//*29:*/ +#line 488 "hint.w" + +font_def_t*font_def; +/*:29*//*38:*/ +#line 593 "hint.w" + +param_def_t**param_def; +/*:38*//*45:*/ +#line 733 "hint.w" + +typedef struct{ +uint8_t pg; +uint32_t f,t; +}range_def_t; +range_def_t*range_def; +/*:45*//*50:*/ +#line 790 "hint.w" + +stream_t*streams; +/*:50*//*53:*/ +#line 804 "hint.w" + +typedef struct{ +xdimen_t x; +int f; +int p,n,r; +pointer b,a; +xdimen_t w; +pointer g; +pointer h; +}stream_def_t; +/*:53*//*57:*/ +#line 877 "hint.w" + +typedef struct{ +char*n; +dimen_t d; +pointer g; +uint8_t p; +uint32_t t; +xdimen_t v,h; +stream_def_t*s; +}page_def_t; +page_def_t*page_def; +page_def_t*cur_page; +/*:57*//*65:*/ +#line 1021 "hint.w" + +hint_outline_t*hint_outlines= NULL; +int outline_no= -1; +/*:65*//*162:*/ +#line 2762 "hint.w" + +static param_def_t*line_break_params= NULL; +/*:162*//*205:*/ +#line 3487 "hint.w" + +static scaled page_height; +static scaled top_so_far[8]; +/*:205*//*220:*/ +#line 3765 "hint.w" + +static uint32_t map[0x10000]; +/*:220*//*225:*/ +#line 3829 "hint.w" + +#define MAX_PAGE_POS (1<<3) + +uint64_t page_loc[MAX_PAGE_POS]; +int cur_loc; +static int lo_loc,hi_loc; +/*:225*//*242:*/ +#line 4212 "hint.w" + +scaled hvsize,hhsize; +/*:242*//*244:*/ +#line 4240 "hint.w" + +int page_v,page_h,offset_v,offset_h; +/*:244*//*301:*/ +#line 5514 "hint.w" + +hint_link_t*hint_links= NULL; +int max_link= -1; +/*:301*//*358:*/ +#line 7207 "hint.w" + +jmp_buf error_exit; +char herror_string[MAX_HERROR]; +/*:358*/ +#line 7524 "hint.w" + +/*3:*/ +#line 196 "hint.w" + +static void hget_font_def(uint8_t a,uint8_t n); +static int32_t hget_integer_def(uint8_t a); +static scaled hget_dimen_def(uint8_t a); +static pointer hget_glue_def(uint8_t a); +static void hget_baseline_def(uint8_t a,uint8_t n); +static param_def_t*hget_param_list(uint8_t a); +static void hget_range_def(uint8_t a,uint8_t pg); +static void hget_page_def(uint8_t a,uint8_t n); +static void hget_outline_or_label_def(info_t i,int n); +static void hget_font_metrics(); +static pointer hget_definition(uint8_t a); +/*:3*//*27:*/ +#line 457 "hint.w" + +static pointer hprepend_to_vlist(pointer b); +/*:27*//*36:*/ +#line 569 "hint.w" + +static pointer hget_glue_spec(void); +static pointer hget_disc_node(void); +/*:36*//*104:*/ +#line 1558 "hint.w" + +static scaled hget_xdimen_node(void); +/*:104*//*117:*/ +#line 1855 "hint.w" + +static pointer hget_list_pointer(void); +static pointer hteg_list_pointer(void); +/*:117*//*124:*/ +#line 1973 "hint.w" + +static scaled hget_xdimen_node(void); +/*:124*/ +#line 7525 "hint.w" + +/*9:*/ +#line 253 "hint.w" + +static int32_t hget_integer_def(uint8_t a) +{if(INFO(a)==1){int8_t n= HGET8;return n;} +else if(INFO(a)==2){int16_t n;HGET16(n);return n;} +else if(INFO(a)==4){int32_t n;HGET32(n);return n;} +else TAGERR(a); +return 0; +} + +static int32_t hget_integer_ref(uint8_t n) +{REF_RNG(int_kind,n); +return integer_def[n]; +} +/*:9*//*17:*/ +#line 311 "hint.w" + +static scaled xdimen(xdimen_t*x) +{return round(x->w+(double)x->h*(double)hhsize+(double)x->v*(double)hvsize); +} +static scaled hget_xdimen_ref(uint8_t n) +{REF_RNG(xdimen_kind,n); +return xdimen(xdimen_def+n); +} +/*:17*//*19:*/ +#line 331 "hint.w" + + +static pointer hget_glue_ref(uint8_t n) +{REF_RNG(glue_kind,n); +return pointer_def[glue_kind][n]; +} + +static pointer hget_glue_def(uint8_t a) +{pointer p; +if(INFO(a)==b000) +{p= hget_glue_ref(HGET8); +add_glue_ref(p); +} +else +{HGET_GLUE(INFO(a));} +return p; +} + +pointer hget_param_glue(uint8_t n) +{REF_RNG(glue_kind,n); +return new_glue(pointer_def[glue_kind][n]); +} +/*:19*//*32:*/ +#line 501 "hint.w" + +static void hget_font_def(uint8_t a,uint8_t n) +{char*t; +font_def_t*f= font_def+n; +HGET_STRING(t);f->n= strdup(t); +DBG(DBGDEF,"Font %d: %s\n",n,t); +HGET32(f->s);RNG("Font size",f->s,1,0x7fffffff); +HGET16(f->m);RNG("Font metrics",f->m,3,max_section_no); +HGET16(f->q);RNG("Font glyphs",f->q,3,max_section_no); +f->g= hget_glue_spec(); +f->h= hget_disc_node(); +DBG(DBGDEF,"Start font parameters\n"); +while(KIND(*hpos)!=font_kind) +{kind_t k; +uint8_t n; +/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 516 "hint.w" + +k= KIND(a); +n= HGET8; +DBG(DBGDEF,"Reading font parameter %d: %s\n",n,definition_name[k]); +if(k!=penalty_kind&&k!=kern_kind&&k!=ligature_kind&& +k!=disc_kind&&k!=glue_kind&&k!=language_kind&&k!=rule_kind&&k!=image_kind) +QUIT("Font parameter %d has invalid type %s",n,content_name[n]); +RNG("Font parameter",n,0,MAX_FONT_PARAMS); +f->p[n]= hget_definition(a); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 525 "hint.w" + +} +DBG(DBGDEF,"End font definition\n"); +} +/*:32*//*33:*/ +#line 534 "hint.w" + +static void hget_font_metrics(void) +{int i; +for(i= 0;i<=max_ref[font_kind];i++) +if(font_def[i].m!=0) +{int s; +hget_section(font_def[i].m); +s= font_def[i].s; +if(s==0)s= -1000; +read_font_info(i,font_def[i].n,s); +font_def[i].s= font_size[i]; +} +} +/*:33*//*41:*/ +#line 610 "hint.w" + +static void free_param_list(param_def_t*p) +{while(p!=NULL) +{param_def_t*q= p; +p= p->next; +free(q); +} +} +/*:41*//*42:*/ +#line 622 "hint.w" + +static param_def_t*hget_param_list(uint8_t a) +{uint32_t s,t; +param_def_t*p= NULL; +uint8_t*list_start,*list_end; +list_start= hpos; +s= hget_list_size(INFO(a)); +hget_size_boundary(INFO(a)); +list_end= hpos+s; +if(list_end>=hend) +QUIT("list end after before stream end\n"); +while(hposp); +q->n= HGET8; +q->k= KIND(a); +DBG(DBGTAGS,"Defining %s %d\n",definition_name[KIND(a)],q->n); +if(KIND(a)==int_kind)q->v= hget_integer_def(a); +else if(KIND(a)==dimen_kind)q->v= hget_dimen_def(a); +else if(KIND(a)==glue_kind)q->v= hget_glue_def(a); +else TAGERR(a); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 645 "hint.w" + +r->next= p; +p= r; +} +hget_size_boundary(INFO(a)); +t= hget_list_size(INFO(a)); +if(t!=s) +QUIT("List sizes at "SIZE_F" and "SIZE_F" do not match 0x%x != 0x%x",list_start-hstart,list_end-hstart,s,t); +return p; +} + +param_def_t*hget_param_list_node(void) +{if(KIND(*hpos)!=param_kind)return NULL; +else +{param_def_t*p; +/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 660 "hint.w" + +p= hget_param_list(a); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 662 "hint.w" + +return p; +} +} + +param_def_t*hget_param_list_ref(uint8_t n) +{REF_RNG(param_kind,n); +return param_def[n]; +} +/*:42*//*43:*/ +#line 684 "hint.w" + +#define MAX_SAVE 100 +#define SAVE_BOUNDARY 0xFF +static param_t par_save[MAX_SAVE]; +static int par_save_ptr= 0; + +static void hset_param(uint8_t k,uint8_t n,int32_t v) +{param_t*q; +if(par_save_ptr>=MAX_SAVE)QUIT("Parameter save stack overflow"); +q= &(par_save[par_save_ptr++]); +q->k= k; +q->n= n; +if(q->k==int_kind) +{q->v= integer_def[q->n];integer_def[q->n]= v;} +else if(q->k==dimen_kind) +{q->v= dimen_def[q->n];dimen_def[q->n]= (scaled)v;} +else if(q->k==glue_kind) +{q->v= pointer_def[glue_kind][q->n];pointer_def[glue_kind][q->n]= (pointer)v;} +} + +void hset_param_list(param_def_t*p) +{hset_param(SAVE_BOUNDARY,0,0); +while(p!=NULL) +{hset_param(p->p.k,p->p.n,p->p.v); +p= p->next; +} +} + +void hrestore_param_list(void) +{ +while(par_save_ptr> 0) +{param_t*q; +q= &(par_save[--par_save_ptr]); +if(q->k==SAVE_BOUNDARY)return; +if(q->k==int_kind) +{integer_def[q->n]= q->v;} +else if(q->k==dimen_kind) +{dimen_def[q->n]= (scaled)q->v;} +else if(q->k==glue_kind) +{pointer_def[glue_kind][q->n]= (pointer)q->v;} +} +QUIT("Parameter save stack flow"); +} +/*:43*//*48:*/ +#line 748 "hint.w" + +static void hget_range_def(uint8_t a,uint8_t pg) +{static uint8_t n= 0; +uint32_t f,t; +REF_RNG(page_kind,pg); +REF_RNG(range_kind,n); +if(INFO(a)&b100) +{if(INFO(a)&b001)HGET32(f);else HGET16(f);} +else f= 0; +if(INFO(a)&b010) +{if(INFO(a)&b001)HGET32(t);else HGET16(t);} +else t= HINT_NO_POS; +range_def[n].pg= pg; +range_def[n].f= f; +range_def[n].t= t; +DBG(DBGRANGE,"Range *%d from 0x%x\n",pg,f); +DBG(DBGRANGE,"Range *%d to 0x%x\n",pg,t); +n++; +} +#if 0 + +static uint8_t hget_page_ref(uint32_t pos) +{int i; +for(i= 1;i<=max_ref[range_kind];i++) +if(range_def[i].f<=pos&&pos 0) +{if(INFO(a)==b100)/*55:*/ +#line 852 "hint.w" + +{DBG(DBGDEF,"Defining normal stream %d at "SIZE_F"\n",*(hpos-1),hpos-hstart-2); +hget_xdimen_def_node(&(s->x)); +HGET16(s->f);RNG("magnification factor",s->f,0,1000); +s->p= HGET8;if(s->p!=255)REF_RNG(stream_kind,s->p); +s->n= HGET8;if(s->n!=255)REF_RNG(stream_kind,s->n); +HGET16(s->r);RNG("split ratio",s->r,0,1000); +} +/*:55*/ +#line 834 "hint.w" + +else if(INFO(a)==b101)QUIT("first stream not yet implemented"); +else if(INFO(a)==b110)QUIT("last stream not yet implemented"); +else if(INFO(a)==b111)QUIT("top stream not yet implemented"); +s->b= hget_list_pointer(); +hget_xdimen_def_node(&(s->w)); +s->g= hget_glue_spec(); +s->a= hget_list_pointer(); +s->h= hget_glue_spec(); +} +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 844 "hint.w" + +return true; +} +} +/*:54*//*61:*/ +#line 921 "hint.w" + + +static void hset_cur_page(void) +{int i; +cur_page= &(page_def[0]); +for(i= 1;i<=max_ref[page_kind];i++) +if(page_def[i].p>=cur_page->p) +cur_page= &(page_def[i]); +} + +static void hskip_list(void); +static void hget_page_def(uint8_t a,uint8_t i) +{char*n; +cur_page= &(page_def[i]); +ALLOCATE(cur_page->s,max_ref[stream_kind]+1,stream_def_t); +HGET_STRING(n);cur_page->n= strdup(n); +cur_page->p= HGET8; +cur_page->g= hget_glue_spec(); +HGET32(cur_page->d); +hget_xdimen_def_node(&(cur_page->v)); +hget_xdimen_def_node(&(cur_page->h)); +cur_page->t= hpos-hstart; +hskip_list(); +while(hget_stream_def(cur_page->s))continue; +} +/*:61*//*72:*/ +#line 1097 "hint.w" + +static pointer hget_ligature_ref(uint8_t n) +{REF_RNG(ligature_kind,n); +return copy_node_list(pointer_def[ligature_kind][n]); +} + +static pointer hget_rule_ref(uint8_t n) +{REF_RNG(rule_kind,n); +return copy_node_list(pointer_def[rule_kind][n]); +} + +static pointer hget_image_ref(uint16_t n) +{REF_RNG(image_kind,n); +return copy_node_list(pointer_def[image_kind][n]); +} + +static pointer hget_hyphen_ref(uint8_t n) +{REF_RNG(disc_kind,n); +return copy_node_list(pointer_def[disc_kind][n]); +} + +static pointer hget_leaders_ref(uint8_t n) +{REF_RNG(leaders_kind,n); +return copy_node_list(pointer_def[leaders_kind][n]); +} + + + + +/*:72*//*85:*/ +#line 1306 "hint.w" + + +static void hget_xdimen_def(info_t i,xdimen_t*x) +{switch(i) +{ +case b000: +{int n= HGET8; +REF_RNG(xdimen_kind,n); +x->w= xdimen_def[n].w; +x->h= xdimen_def[n].h; +x->v= xdimen_def[n].v; +break; +} +case b001:HGET_XDIMEN(b001,*x);break; +case b010:HGET_XDIMEN(b010,*x);break; +case b011:HGET_XDIMEN(b011,*x);break; +case b100:HGET_XDIMEN(b100,*x);break; +case b101:HGET_XDIMEN(b101,*x);break; +case b110:HGET_XDIMEN(b110,*x);break; +case b111:HGET_XDIMEN(b111,*x);break; +default: +x->w= 0;x->h= x->v= 0.0; +} +} +static scaled hget_xdimen(info_t i) +{xdimen_t x; +hget_xdimen_def(i,&x); +return xdimen(&x); +} + +static scaled hget_xdimen_node(void) +{scaled x= 0; +/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 1338 "hint.w" + +if(KIND(a)==xdimen_kind) +x= hget_xdimen(INFO(a)); +else +QUIT("Extent expected at 0x%x got %s",node_pos,NAME(a)); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 1343 "hint.w" + +return x; +} + +static void hget_xdimen_def_node(xdimen_t*x) +{/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 1348 "hint.w" + +if(KIND(a)==xdimen_kind) +hget_xdimen_def(INFO(a),x); +else +QUIT("Extent expected at 0x%x got %s",node_pos,NAME(a)); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 1353 "hint.w" + +} + + +/*:85*//*86:*/ +#line 1359 "hint.w" + +scaled hteg_xdimen(uint8_t a) +{xdimen_t x; +switch(a) +{ +case TAG(xdimen_kind,b000):return hget_xdimen_ref(HTEG8); +case TAG(xdimen_kind,b001):HTEG_XDIMEN(b001,x);break; +case TAG(xdimen_kind,b010):HTEG_XDIMEN(b010,x);break; +case TAG(xdimen_kind,b011):HTEG_XDIMEN(b011,x);break; +case TAG(xdimen_kind,b100):HTEG_XDIMEN(b100,x);break; +case TAG(xdimen_kind,b101):HTEG_XDIMEN(b101,x);break; +case TAG(xdimen_kind,b110):HTEG_XDIMEN(b110,x);break; +case TAG(xdimen_kind,b111):HTEG_XDIMEN(b111,x);break; +default: +x.w= 0;x.h= x.v= 0.0; +QUIT("Extent expected got [%s,%d]",NAME(a),INFO(a)); +} +return xdimen(&x); +} + +scaled hteg_xdimen_node(void) +{scaled x= 0; +/*78:*/ +#line 1222 "hint.w" + +uint8_t a,z; +z= HTEG8,DBGTAG(z,hpos); +/*:78*/ +#line 1381 "hint.w" + +if(KIND(z)==xdimen_kind) +x= hteg_xdimen(z); +else +QUIT("Extent expected at 0x%x got %s",node_pos,NAME(z)); +/*79:*/ +#line 1227 "hint.w" + +a= HTEG8,DBGTAG(a,hpos); +if(z!=a) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at "SIZE_F" to 0x%x\n", +NAME(a),INFO(a),NAME(z),INFO(z),hpos-hstart,node_pos); + +/*:79*/ +#line 1386 "hint.w" + +return x; +} +/*:86*//*102:*/ +#line 1534 "hint.w" + +static pointer hteg_rule_node(void) +{pointer q= null; +/*78:*/ +#line 1222 "hint.w" + +uint8_t a,z; +z= HTEG8,DBGTAG(z,hpos); +/*:78*/ +#line 1537 "hint.w" + +if(KIND(z)==rule_kind){HTEG_RULE(INFO(z));q= p;} +else QUIT("Rule expected at 0x%x got %s",node_pos,NAME(z)); +/*79:*/ +#line 1227 "hint.w" + +a= HTEG8,DBGTAG(a,hpos); +if(z!=a) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at "SIZE_F" to 0x%x\n", +NAME(a),INFO(a),NAME(z),INFO(z),hpos-hstart,node_pos); + +/*:79*/ +#line 1540 "hint.w" + +return q; +} +/*:102*//*108:*/ +#line 1603 "hint.w" + +static pointer hget_glue_spec(void) +{pointer p= null; +uint8_t a,z; +if(hpos>=hend||KIND(*hpos)!=glue_kind) +{p= zero_glue;incr(glue_ref_count(p));} +else +{node_pos= hpos-hstart; +HGETTAG(a); +if(INFO(a)==b000) +{p= hget_glue_ref(HGET8);incr(glue_ref_count(p));} +else +{HGET_GLUE(INFO(a));} +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 1616 "hint.w" + +} +return p; +} + +static pointer spec2glue(pointer q) +{pointer p; +p= get_node(small_node_size);type(p)= glue_node;subtype(p)= normal; +leader_ptr(p)= null;glue_ptr(p)= q; +return p; +} + +static pointer hget_glue_node(void) +{return spec2glue(hget_glue_spec()); +} +/*:108*//*109:*/ +#line 1633 "hint.w" + +static pointer hteg_glue_spec(void) +{pointer p= null; +uint8_t a,z; +if(hpos<=hstart)return null; +if(KIND(*(hpos-1))!=glue_kind)return null; +z= HTEG8,DBGTAG(z,hpos); +if(INFO(z)==b000)p= hget_glue_ref(HTEG8); +else +{HTEG_GLUE(INFO(z));} +/*79:*/ +#line 1227 "hint.w" + +a= HTEG8,DBGTAG(a,hpos); +if(z!=a) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at "SIZE_F" to 0x%x\n", +NAME(a),INFO(a),NAME(z),INFO(z),hpos-hstart,node_pos); + +/*:79*/ +#line 1643 "hint.w" + +return p; +} + + +static pointer hteg_glue_node(void) +{pointer p= hteg_glue_spec(); +if(p!=null)return spec2glue(p); +else return new_glue(zero_glue); +} +/*:109*//*112:*/ +#line 1678 "hint.w" + +static pointer hget_node_list(uint32_t s) +{uint8_t*list_end= hpos+s; +pointer p; +push_nest(); +cur_list.bs_pos= NULL; +while(hpos 0) +hpos= hpos+(1+s+1+(INFO(a)-1)+1); +else +hpos= hpos+1; +} +} + +static void hskip_list_back() +{uint8_t z; +uint32_t s; +if(!IS_LIST(*(hpos-1)))return; +z= HTEG8; +s= hteg_list_size(INFO(z)); +if(s> 0) +hpos= hpos-(1+s+1+(INFO(z)-1)+1); +else +hpos= hpos-1; +} + +pointer hteg_list_pointer(void) +{uint8_t*list_start; +pointer p; +hskip_list_back(); +list_start= hpos; +p= hget_list_pointer(); +hpos= list_start; +return p; +} +/*:113*//*114:*/ +#line 1765 "hint.w" + +#if 0 +static int32_t hteg_integer_def(uint8_t z) +{if(INFO(z)==1){int8_t n= HTEG8;return n;} +else if(INFO(z)==2){int16_t n;HTEG16(n);return n;} +else if(INFO(z)==4){int32_t n;HTEG32(n);return n;} +else TAGERR(z); +return 0; +} + +static param_def_t*hteg_param_list(uint8_t z) +{uint32_t s,t; +param_def_t*p= NULL; +uint8_t*list_start,*list_end; +list_end= hpos; +s= hteg_list_size(INFO(z)); +hteg_size_boundary(INFO(z)); +list_start= hpos-s; +if(list_start<=hstart) +QUIT("list start before stream start\n"); +while(list_startp); +q->k= KIND(z); +if(KIND(z)==int_kind)q->i= hteg_integer_def(a); +else if(KIND(a)==dimen_kind)HTEG32(q->d); +else if(KIND(a)==glue_kind){pointer p;HTEG_GLUE(INFO(z));q->g= p;} +else TAGERR(a); +q->n= HTEG8; +DBG(DBGTAGS,"Defining %s %d\n",definition_name[KIND(z)],q->n); +/*79:*/ +#line 1227 "hint.w" + +a= HTEG8,DBGTAG(a,hpos); +if(z!=a) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at "SIZE_F" to 0x%x\n", +NAME(a),INFO(a),NAME(z),INFO(z),hpos-hstart,node_pos); + +/*:79*/ +#line 1797 "hint.w" + +r->next= p; +p= r; +} +hteg_size_boundary(INFO(z)); +t= hteg_list_size(INFO(z)); +if(t!=s) +QUIT("List sizes at "SIZE_F" and "SIZE_F" do not match 0x%x != 0x%x",list_start-hstart,list_end-hstart,s,t); +return p; +} +#endif + +static param_def_t*hteg_param_list_node(void) +{param_def_t*p; +uint8_t*list_start; +hskip_list_back(); +list_start= hpos; +p= hget_param_list_node(); +hpos= list_start; +return p; +} +/*:114*//*121:*/ +#line 1924 "hint.w" + +static pointer hteg_hbox_node(void) +{/*78:*/ +#line 1222 "hint.w" + +uint8_t a,z; +z= HTEG8,DBGTAG(z,hpos); +/*:78*/ +#line 1926 "hint.w" + +if(KIND(z)!=hbox_kind)QUIT("Hbox expected at 0x%x got %s",node_pos,NAME(z)); +{pointer p; +HTEG_BOX(INFO(z)); +/*79:*/ +#line 1227 "hint.w" + +a= HTEG8,DBGTAG(a,hpos); +if(z!=a) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at "SIZE_F" to 0x%x\n", +NAME(a),INFO(a),NAME(z),INFO(z),hpos-hstart,node_pos); + +/*:79*/ +#line 1930 "hint.w" + +return p; +} +} +static pointer hteg_vbox_node(void) +{/*78:*/ +#line 1222 "hint.w" + +uint8_t a,z; +z= HTEG8,DBGTAG(z,hpos); +/*:78*/ +#line 1935 "hint.w" + +if(KIND(z)!=vbox_kind)QUIT("Vbox expected at 0x%x got %s",node_pos,NAME(z)); +{pointer p; +HTEG_BOX(INFO(z)); +/*79:*/ +#line 1227 "hint.w" + +a= HTEG8,DBGTAG(a,hpos); +if(z!=a) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at "SIZE_F" to 0x%x\n", +NAME(a),INFO(a),NAME(z),INFO(z),hpos-hstart,node_pos); + +/*:79*/ +#line 1939 "hint.w" + +type(p)= vlist_node; +return p; +} +} + +/*:121*//*127:*/ +#line 2021 "hint.w" + +static void hset(pointer p, +uint8_t sto,scaled st,uint8_t sho,scaled sh,scaled w) +{scaled x; +x= width(p); +width(p)= w; + +x= w-x; +if(x==0) +{glue_sign(p)= normal;glue_order(p)= normal; +glue_set(p)= 0.0; +} +else if(x> 0) +{glue_order(p)= sto;glue_sign(p)= stretching; +if(st!=0) +glue_set(p)= (float32_t)(x/(double)st); +else +{glue_sign(p)= normal; +glue_set(p)= 0.0; +} +} +else +{glue_order(p)= sho;glue_sign(p)= shrinking; +if(sh!=0) +glue_set(p)= (float32_t)((-x)/(double)sh); +else +{glue_sign(p)= normal; +glue_set(p)= 0.0; +} +if((sh<-x)&&(sho==normal)&&(list_ptr(p)!=null)) +glue_set(p)= 1.0; +} +} + + + + +void vset(pointer p,uint8_t sto,scaled st, +uint8_t sho,scaled sh,scaled h) +{scaled x; +type(p)= vlist_node; +x= height(p); +height(p)= h; +x= h-x; +if(x==0) +{glue_sign(p)= normal;glue_order(p)= normal; +glue_set(p)= 0.0; +} +else if(x> 0) +{glue_order(p)= sto;glue_sign(p)= stretching; +if(st!=0) +glue_set(p)= (float32_t)(x/(double)st); +else +{glue_sign(p)= normal; +glue_set(p)= 0.0; +} +} +else +{glue_order(p)= sho;glue_sign(p)= shrinking; +if(sh!=0) +glue_set(p)= (float32_t)((-x)/(double)sh); +else +{glue_sign(p)= normal; +glue_set(p)= 0.0; +} +} +} +/*:127*//*144:*/ +#line 2300 "hint.w" + +static pointer hget_text_list(uint32_t s) +{pointer p= null; +pointer*pp= &p; +uint8_t*t= hpos+s; +while(hpos 0&&r!=null){r= link(r);t--;} +if(s!=null) +{while(link(s)!=null)s= link(s); +link(s)= link(r);link(r)= post_break(q);post_break(q)= null; +} +q= link(r); +if(r!=head) +{link(r)= null;flush_node_list(link(head)); +link(head)= q; +} +} +static void transplant_pre_break_list(void) +{pointer q= tail; +set_replace_count(q,0); +link(q)= pre_break(q); +pre_break(q)= null; +while(link(q)!=null)q= link(q); +tail= q; +} + + +static void hprune_unwanted_nodes(void) +{pointer q,r= head; +while(true){q= link(r); +if(q==null)goto done; +if(is_char_node(q))goto done; +if(non_discardable(q))goto done; +if(type(q)==kern_node&&subtype(q)!=explicit)goto done; +r= q; +} +done:if(r!=head) +{link(r)= null;flush_node_list(link(head)); +link(head)= q; +} +} +/*:157*//*158:*/ +#line 2549 "hint.w" + +pointer hget_paragraph_all(scaled x) +{ +uint32_t s,t; +uint8_t a,z; +if(!IS_LIST(*hpos))return null; +HGETTAG(a); +s= hget_list_size(INFO(a)); +hget_size_boundary(INFO(a)); +if(KIND(a)==list_kind) +{uint8_t*list_end= hpos+s; +cur_list.hs_field= x; +push_nest(); +cur_list.bs_pos= NULL; +#if 0 +if(offset> 0)hpos= hstart+node_pos1+offset; +#endif +while(hpos 0&&link(head)!=null&&!is_char_node(link(head))) +{if(type(link(head))==disc_node) +transplant_post_break_list(); +else +hprune_unwanted_nodes(); +} +#endif +if(needs_bs) +QUIT("Unexpected trailing baseline node"); +if(head==tail) +{pop_nest(); +return null; +} +else +{pointer par_ptr= link(head); +pop_nest(); +store_map(par_ptr,node_pos,0); +return par_ptr; +} +} +else +QUIT("Text in paragraph not yet implemented"); +return null; +} +/*:158*//*159:*/ +#line 2612 "hint.w" + +pointer hget_paragraph_final(scaled x,uint8_t*from) +{ +uint32_t s,t; +uint8_t a,z; +if(!IS_LIST(*hpos))return null; +HGETTAG(a); +s= hget_list_size(INFO(a)); +hget_size_boundary(INFO(a)); +if(KIND(a)==list_kind) +{uint8_t*list_end= hpos+s; +cur_list.hs_field= x; +push_nest(); +cur_list.bs_pos= NULL; +hpos= from; +while(hposp.k==int_kind&&q->p.n==floating_penalty_no)float_cost(p)= q->p.v; +else if(q->p.k==dimen_kind&&q->p.n==split_max_depth_no)depth(p)= (scaled)q->p.v; +else if(q->p.k==glue_kind&&q->p.n==split_top_skip_no) +{split_top_ptr(p)= (pointer)q->p.v;if(!f)add_glue_ref(split_top_ptr(p));} +else QUIT("Unexpected parameter in stream"); +q= q->next; +if(f)free(r); +} +s= vpack(ins_ptr(p),natural); +height(p)= height(s)+depth(s); +ins_ptr(p)= list_ptr(s); +list_ptr(s)= null;flush_node_list(s); +} +/*:184*//*224:*/ +#line 3807 "hint.w" + + +uint64_t hlocation(pointer p) +{return PAGE_LOC(map[p],map[p+1]); +} +/*:224*//*227:*/ +#line 3853 "hint.w" + +#define NEXT_PAGE(X) (X= (X+1)&(MAX_PAGE_POS-1)) +#define PREV_PAGE(X) (X= (X-1)&(MAX_PAGE_POS-1)) + +void hloc_clear(void) +{lo_loc= hi_loc= cur_loc;PREV_PAGE(lo_loc);NEXT_PAGE(hi_loc); +} + +bool hloc_next(void) +{int i= cur_loc; +if(LOC_POS(page_loc[cur_loc])>=hend-hstart) +return false; +NEXT_PAGE(i); +if(i==hi_loc) +return false; +cur_loc= i; +return true; +} + +bool hloc_prev(void) +{int i= cur_loc; +if(page_loc[cur_loc]==0) +return false; +PREV_PAGE(i); +if(i==lo_loc) +return false; +cur_loc= i; +return true; +} + + +/*:227*//*230:*/ +#line 3915 "hint.w" + + +void hloc_set(uint64_t h) +{int i; +if(page_loc[cur_loc]==h)return; +for(i= lo_loc,NEXT_PAGE(i);i!=hi_loc;NEXT_PAGE(i)) +if(page_loc[i]==h) +{cur_loc= i;return;} +page_loc[cur_loc]= h; +hloc_clear(); +DBG(DBGPAGE,"loc_set: %d < %d < %d\n",lo_loc,cur_loc,hi_loc); +} +/*:230*//*231:*/ +#line 3939 "hint.w" + + +void hloc_set_next(pointer p) +{int i= cur_loc; +uint64_t h= hlocation(p); + +NEXT_PAGE(i); +if(i==hi_loc) +{if(hi_loc==lo_loc) +NEXT_PAGE(lo_loc); +NEXT_PAGE(hi_loc); +page_loc[i]= h; +} +else if(h!=page_loc[i]) +{page_loc[i]= h; +NEXT_PAGE(i); +hi_loc= i; +} +DBG(DBGPAGE,"loc_set_next: %d < %d < %d\n",lo_loc,cur_loc,hi_loc); +} +/*:231*//*232:*/ +#line 3975 "hint.w" + +void hloc_set_prev(pointer p) +{int i= cur_loc; +uint64_t h= hlocation(p); +PREV_PAGE(i); +if(i==lo_loc) +{if(lo_loc==hi_loc) +PREV_PAGE(hi_loc); +PREV_PAGE(lo_loc); +page_loc[i]= h; +} +else if(h!=page_loc[i]) +{page_loc[i]= h; +lo_loc= i; +PREV_PAGE(lo_loc); +} +hi_loc= cur_loc; +NEXT_PAGE(hi_loc); +cur_loc= i; +DBG(DBGPAGE,"loc_set_prev: %d < %d < %d\n",lo_loc,cur_loc,hi_loc); +} +/*:232*//*245:*/ +#line 4250 "hint.w" + +static void hset_margins(void) +{if(cur_page==&(page_def[0])){ +offset_h= page_h/8-0x48000; +if(offset_h<0)offset_h= 0; +offset_v= page_v/8-0x48000; +if(offset_v<0)offset_v= 0; +if(offset_h> offset_v)offset_h= offset_v; +else offset_v= offset_h; +hhsize= page_h-2*offset_h; +hvsize= page_v-2*offset_v; +if(hhsize<=0)hhsize= page_h,offset_h= 0; +if(hvsize<=0)hvsize= page_v,offset_v= 0; +} +else +{hhsize= round((double)(page_h-cur_page->h.w)/(double)cur_page->h.h); +if(hhsize> page_h)hhsize= page_h; +hvsize= round((double)(page_v-cur_page->v.w)/(double)cur_page->v.v); +if(hvsize> page_v)hvsize= page_v; +} +} +/*:245*//*247:*/ +#line 4280 "hint.w" + +static void houtput_template0(void) +{pointer p,q,r; +if(streams[0].p==null)return; +p= streams[0].p;streams[0].p= null; +p= vpackage(p,hvsize,exactly,page_max_depth); +r= new_kern(offset_v); +link(r)= p; +q= new_null_box(); +type(q)= vlist_node; +width(q)= width(p)+offset_h; +height(q)= height(p)+offset_v;depth(q)= depth(p); +list_ptr(q)= r; +shift_amount(p)+= offset_h; +streams[0].p= q; +} +/*:247*//*272:*/ +#line 4923 "hint.w" + +static int trv_string_size= 0; +static char trv_string[256]; +#define TRV_UTF8(C) (trv_string[trv_string_size++]= (C)) +static void trv_string_collect(uint32_t c) +{if(trv_string_size<256-5) +{if(c<0x80) +TRV_UTF8(c); +else if(c<0x800) +{TRV_UTF8(0xC0|(c>>6));TRV_UTF8(0x80|(c&0x3F));} +else if(c<0x10000) +{TRV_UTF8(0xE0|(c>>12));TRV_UTF8(0x80|((c>>6)&0x3F));TRV_UTF8(0x80|(c&0x3F));} +else if(c<0x200000) +{TRV_UTF8(0xF0|(c>>18));TRV_UTF8(0x80|((c>>12)&0x3F)); +TRV_UTF8(0x80|((c>>6)&0x3F));TRV_UTF8(0x80|(c&0x3F));} +else +RNG("character code in outline",c,0,0x1FFFFF); +} +} + +char*hlist_to_string(pointer p) +{trv_string_size= 0; +trv_init(trv_string_collect); +trv_hlist(p); +trv_string[trv_string_size]= 0; +return trv_string; +} +/*:272*//*368:*/ +#line 7435 "hint.w" + +static pointer leaks[1<<16]= {0}; + +static void leak_clear(void) +{ +#ifdef DEBUG +int i; +for(i= 0;i<0x10000;i++) +leaks[i]= 0; +#endif +} + +void leak_in(pointer p,int s) +{ +#ifdef DEBUG +if(0!=leaks[p]) +fprintf(stderr,"ERROR leak in: p=%d, s in=%d, leaks[p]= %d != 0\n",p,s,leaks[p]); +leaks[p]= s; +#endif +} + +void leak_out(pointer p,int s) +{ +#ifdef DEBUG +if(s!=leaks[p]) +fprintf(stderr,"ERROR: leak out: p=%d, s out=%d != %d = s in\n",p,s,leaks[p]); +leaks[p]= 0; +#endif +} + +static void list_leaks(void) +{ +#ifdef DEBUG +int i; +for(i= 0;i<0x10000;i++) +if(leaks[i]!=0) +fprintf(stderr,"ERROR:leak final: p=%d, s=%d\n",i,leaks[i]); +#endif +} +/*:368*/ +#line 7526 "hint.w" + +/*1:*/ +#line 111 "hint.w" + +void hget_def_node(void) +{kind_t k; +int n; +/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 115 "hint.w" + +k= KIND(a); +if(k==label_kind&&(INFO(a)&b001))HGET16(n); +else n= HGET8; +if(k!=range_kind)REF_RNG(k,n); +DBG(DBGTAGS,"Defining %s %d\n",definition_name[KIND(a)],n); +switch(KIND(a)) +{case language_kind:{char*t;HGET_STRING(t);break;} +case font_kind:hget_font_def(a,n);break; +case int_kind:integer_def[n]= hget_integer_def(a);break; +case dimen_kind:dimen_def[n]= hget_dimen_def(a);break; +case xdimen_kind:hget_xdimen_def(INFO(a),&(xdimen_def[n]));break; +case baseline_kind:hget_baseline_def(a,n);break; +case glue_kind:pointer_def[glue_kind][n]= hget_glue_def(a);break; +case param_kind:param_def[n]= hget_param_list(a);break; +case range_kind:hget_range_def(a,n);break; +case page_kind:hget_page_def(a,n);break; +case label_kind:hget_outline_or_label_def(INFO(a),n);break; +default:pointer_def[KIND(a)][n]= hget_definition(a);break; +} +if(max_fixed[k]> max_default[k]) +QUIT("Definitions for kind %s not supported",definition_name[k]); +if(n> max_ref[k]||n<=max_fixed[k]) +QUIT("Definition %d for %s out of range [%d - %d]", +n,definition_name[k],max_fixed[k]+1,max_ref[k]); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 140 "hint.w" + +} + +pointer hset_glue(glue_t*g) +{if(ZERO_GLUE(*g)) +{add_glue_ref(zero_glue); +return zero_glue; +} +else +{pointer p= get_node(glue_spec_size); +width(p)= g->w.w; +stretch(p)= round(g->p.f*ONE);stretch_order(p)= g->p.o; +shrink(p)= round(g->m.f*ONE);shrink_order(p)= g->m.o; +return p; +} +} + +void hset_default_definitions(void) +{int i; +for(i= 0;i<=MAX_INT_DEFAULT;i++)integer_def[i]= int_defaults[i]; +for(i= 0;i<=MAX_DIMEN_DEFAULT;i++)dimen_def[i]= dimen_defaults[i]; +for(i= 0;i<=MAX_XDIMEN_DEFAULT;i++)xdimen_def[i]= xdimen_defaults[i]; +for(i= 0;i<=MAX_GLUE_DEFAULT;i++)pointer_def[glue_kind][i]= hset_glue(&(glue_defaults[i])); +for(i= 0;i<=MAX_BASELINE_DEFAULT;i++) +{baseline_def[i].bs= hset_glue(&(baseline_defaults[i].bs)); +baseline_def[i].ls= hset_glue(&(baseline_defaults[i].ls)); +baseline_def[i].lsl= baseline_defaults[i].lsl; +} +} + +void free_definitions(void) +{/*5:*/ +#line 226 "hint.w" + +{int k; +for(k= 0;k<32;k++) +{free(pointer_def[k]);pointer_def[k]= NULL;} +} +/*:5*//*8:*/ +#line 249 "hint.w" + +free(integer_def);integer_def= NULL; +/*:8*//*12:*/ +#line 278 "hint.w" + +free(dimen_def);dimen_def= NULL; +/*:12*//*16:*/ +#line 307 "hint.w" + +free(xdimen_def);xdimen_def= NULL; +/*:16*//*24:*/ +#line 378 "hint.w" + +free(baseline_def);baseline_def= NULL; +/*:24*//*31:*/ +#line 496 "hint.w" + +free(font_def);font_def= NULL; +/*:31*//*40:*/ +#line 601 "hint.w" + +if(param_def!=NULL) +{int i; +for(i= 0;i<=max_ref[param_kind];i++) +free_param_list(param_def[i]); +} +free(param_def);param_def= NULL; +/*:40*//*47:*/ +#line 744 "hint.w" + +free(range_def);range_def= NULL; +/*:47*//*52:*/ +#line 798 "hint.w" + +free(streams);streams= NULL; +/*:52*//*60:*/ +#line 911 "hint.w" + +if(page_def!=NULL) +{int k; +for(k= 0;k<=max_ref[page_kind];k++) +{free(page_def[k].s);free(page_def[k].n); +} +free(page_def);page_def= NULL;cur_page= NULL; +} +/*:60*//*67:*/ +#line 1033 "hint.w" + +free(labels);labels= NULL; +{int k; +for(k= 0;k<=max_outline;k++)free(hint_outlines[k].title); +} +free(hint_outlines);hint_outlines= NULL;outline_no= -1; +max_outline= -1; +/*:67*/ +#line 171 "hint.w" + +} + +void hget_definition_section(void) +{DBG(DBGDEF,"Definitions\n"); +hget_section(1); +DBG(DBGDEF,"Reading list of maximum values\n"); +free_definitions(); +hget_max_definitions(); +/*4:*/ +#line 211 "hint.w" + +{kind_t k; +for(k= 0;k<32;k++) +{if(k==font_kind||k==int_kind||k==dimen_kind||k==xdimen_kind|| +k==glue_kind||k==baseline_kind||k==range_kind||k==page_kind||k==param_kind||k==stream_kind||k==label_kind) +continue; +if(max_ref[k]>=0&&max_ref[k]<=256) +{DBG(DBGDEF,"Allocating definitions for %s (kind %d): %d entries of "SIZE_F" byte each\n", +definition_name[k],k,max_ref[k]+1,sizeof(pointer)); +ALLOCATE(pointer_def[k],max_ref[k]+1,pointer); +} +} +} +/*:4*//*7:*/ +#line 245 "hint.w" + +ALLOCATE(integer_def,max_ref[int_kind]+1,int32_t); +/*:7*//*11:*/ +#line 274 "hint.w" + +ALLOCATE(dimen_def,max_ref[dimen_kind]+1,dimen_t); +/*:11*//*15:*/ +#line 304 "hint.w" + +ALLOCATE(xdimen_def,max_ref[xdimen_kind]+1,xdimen_t); +/*:15*//*20:*/ +#line 355 "hint.w" + +ALLOCATE(pointer_def[glue_kind],max_ref[glue_kind]+1,pointer); +/*:20*//*23:*/ +#line 374 "hint.w" + +ALLOCATE(baseline_def,max_ref[baseline_kind]+1,bs_t); +/*:23*//*30:*/ +#line 492 "hint.w" + +ALLOCATE(font_def,max_ref[font_kind]+1,font_def_t); +/*:30*//*39:*/ +#line 597 "hint.w" + +ALLOCATE(param_def,max_ref[param_kind]+1,param_def_t*); +/*:39*//*46:*/ +#line 740 "hint.w" + +ALLOCATE(range_def,max_ref[range_kind]+1,range_def_t); +/*:46*//*51:*/ +#line 794 "hint.w" + +ALLOCATE(streams,max_ref[stream_kind]+1,stream_t); +/*:51*//*58:*/ +#line 891 "hint.w" + +ALLOCATE(page_def,max_ref[page_kind]+1,page_def_t); +/*:58*//*66:*/ +#line 1026 "hint.w" + +if(max_ref[label_kind]>=0) +ALLOCATE(labels,max_ref[label_kind]+1,label_t); +if(max_outline>=0) +ALLOCATE(hint_outlines,max_outline+1,hint_outline_t); +/*:66*/ +#line 180 "hint.w" + +hset_default_definitions(); +DBG(DBGDEF,"Reading list of definitions\n"); +while(hpos ignore_depth) +{d= width(cur_bs)-prev_depth-height(b); +if(d ignore_depth) +{d= width(cur_bs)-prev_height-depth(b); +if(ddepth= HGET8; +t->p= hget_list_pointer(); +t->title= strdup(hlist_to_string(t->p)); +/*71:*/ +#line 1083 "hint.w" + +where= labels[n].where; +#if 1 +pos= ((uint64_t)labels[n].pos<<32)+(labels[n].pos-labels[n].pos0); +#else +pos= ((uint64_t)labels[n].pos0<<32); +#endif +/*:71*/ +#line 1077 "hint.w" + +t->where= where; +t->pos= pos; +} +/*:70*/ +#line 1049 "hint.w" + +else +/*69:*/ +#line 1055 "hint.w" + +{label_t*t= labels+n; +HGET32(t->pos); +t->where= HGET8; +if(t->where> LABEL_MID)t->where= LABEL_UNDEF; +if(i&b010) +{HGET32(t->pos0);t->f= HGET8;} +else t->pos0= t->pos; +DBG(DBGDEF,"Label 0x%x+0x%x where=%d font=%d\n",t->pos0,t->pos,t->where,t->f); +} +/*:69*/ +#line 1051 "hint.w" + +} +/*:68*//*73:*/ +#line 1147 "hint.w" + +static void hget_content_section() +{DBG(DBGDIR,"Reading Content Section\n"); +hget_section(2); +} +/*:73*//*101:*/ +#line 1523 "hint.w" + +pointer hget_rule_node(void) +{pointer q= null; +/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 1526 "hint.w" + +if(KIND(a)==rule_kind){HGET_RULE(INFO(a));q= p;} +else QUIT("Rule expected at 0x%x got %s",node_pos,NAME(a)); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 1529 "hint.w" + +return q; +} +/*:101*//*120:*/ +#line 1899 "hint.w" + +pointer hget_hbox_node(void) +{/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 1901 "hint.w" + +if(KIND(a)!=hbox_kind)QUIT("Hbox expected at 0x%x got %s",node_pos,NAME(a)); +{pointer p; +HGET_BOX(INFO(a)); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 1905 "hint.w" + +return p; +} +} + + +pointer hget_vbox_node(void) +{ +/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 1913 "hint.w" + +if(KIND(a)!=vbox_kind)QUIT("Vbox expected at 0x%x got %s",node_pos,NAME(a)); +{pointer p; +HGET_BOX(INFO(a)); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 1917 "hint.w" + +type(p)= vlist_node; +return p; +} +} +/*:120*//*160:*/ +#line 2667 "hint.w" + +pointer hget_paragraph_initial(scaled x,uint8_t*to) +{ +uint8_t*node_start; +uint32_t s,t; +uint8_t a,z; +node_start= hpos; +HGETTAG(a); +if(!IS_LIST(a)) +{hpos= node_start;return null;} +s= hget_list_size(INFO(a)); +hget_size_boundary(INFO(a)); +if(KIND(a)==list_kind) +{uint8_t*list_end= hpos+s;if(to> list_end){LOG("Value of to greater than list_end");to= list_end;} +cur_list.hs_field= x; +push_nest(); +cur_list.bs_pos= NULL; +while(hpos 0&&cur_page->s[n].b!=0) +{pointer p= copy_node_list(cur_page->s[n].b); +link(tail)= p; +while(link(p)!=null)p= link(p); +tail= p; +DBG(DBGPAGE,"Filling in before list %d\n",n); +} +link(tail)= streams[n].p; +tail= streams[n].t; +if(tail==null)QUIT("Tail of nonempty stream %d is null\n",n); +streams[n].p= streams[n].t= null; +DBG(DBGPAGE,"Filling in content list %d\n",n); +if(n> 0&&cur_page->s[n].a!=0) +{pointer p= copy_node_list(cur_page->s[n].a); +link(tail)= p; +while(link(p)!=null)p= link(p); +tail= p; +DBG(DBGPAGE,"Filling in after list %d\n",n); +} +} +/*:62*//*63:*/ +#line 979 "hint.w" + +void hfill_page_template(void) +{pointer p; +#if 0 +print_str("\npage_head:\n"); +show_box(link(page_head)); +print_str("\nstream 0:\n"); +show_box(streams[0].p); +print_str("\nstream 1:\n"); +show_box(streams[1].p); +print_str("\ncontributions:\n"); +show_box(link(contrib_head)); +#endif +if(cur_page->t!=0) +{ +uint8_t*spos= hpos,*sstart= hstart,*send= hend; +hget_section(1); +hpos= hpos+cur_page->t; +p= hget_list_pointer(); +hpos= spos,hstart= sstart,hend= send; +if(streams[0].p!=null)flush_node_list(streams[0].p); +streams[0].p= streams[0].t= null; +streams[0].p= vpackage(p,page_v,exactly,page_max_depth); +} +else +houtput_template0(); +hmark_page(); +} +/*:63*//*76:*/ +#line 1181 "hint.w" + + +static void hget_node(uint8_t a) +{switch(a) +{ +/*56:*/ +#line 870 "hint.w" + +case TAG(stream_kind,b100):hinsert_stream(HGET8);break; +/*:56*//*91:*/ +#line 1429 "hint.w" + +case TAG(glyph_kind,1):HGET_GLYPH(1);break; +case TAG(glyph_kind,2):HGET_GLYPH(2);break; +case TAG(glyph_kind,3):HGET_GLYPH(3);break; +case TAG(glyph_kind,4):HGET_GLYPH(4);break; +/*:91*//*93:*/ +#line 1444 "hint.w" + +case TAG(penalty_kind,0):tail_append(new_penalty(hget_integer_ref(HGET8)));break; +case TAG(penalty_kind,1):{tail_append(new_penalty(HGET8));}break; +case TAG(penalty_kind,2):{int16_t n;HGET16(n);RNG("Penalty",n,-20000,+20000);tail_append(new_penalty(n));}break; +/*:93*//*95:*/ +#line 1458 "hint.w" + +case TAG(language_kind,b000):(void)HGET8; +case TAG(language_kind,1): +case TAG(language_kind,2): +case TAG(language_kind,3): +case TAG(language_kind,4): +case TAG(language_kind,5): +case TAG(language_kind,6): +case TAG(language_kind,7):break; +/*:95*//*99:*/ +#line 1504 "hint.w" + +case TAG(rule_kind,b000):tail_append(hget_rule_ref(HGET8));prev_depth= ignore_depth;break; +case TAG(rule_kind,b011):{HGET_RULE(b011);tail_append(p);prev_depth= ignore_depth;}break; +case TAG(rule_kind,b101):{HGET_RULE(b101);tail_append(p);prev_depth= ignore_depth;}break; +case TAG(rule_kind,b001):{HGET_RULE(b001);tail_append(p);prev_depth= ignore_depth;}break; +case TAG(rule_kind,b110):{HGET_RULE(b110);tail_append(p);prev_depth= ignore_depth;}break; +case TAG(rule_kind,b111):{HGET_RULE(b111);tail_append(p);prev_depth= ignore_depth;}break; +/*:99*//*106:*/ +#line 1572 "hint.w" + +case TAG(glue_kind,b000):tail_append(new_glue(hget_glue_ref(HGET8)));break; +case TAG(glue_kind,b001):{pointer p;HGET_GLUE(b001);tail_append(spec2glue(p));}break; +case TAG(glue_kind,b010):{pointer p;HGET_GLUE(b010);tail_append(spec2glue(p));}break; +case TAG(glue_kind,b011):{pointer p;HGET_GLUE(b011);tail_append(spec2glue(p));}break; +case TAG(glue_kind,b100):{pointer p;HGET_GLUE(b100);tail_append(spec2glue(p));}break; +case TAG(glue_kind,b101):{pointer p;HGET_GLUE(b101);tail_append(spec2glue(p));}break; +case TAG(glue_kind,b110):{pointer p;HGET_GLUE(b110);tail_append(spec2glue(p));}break; +case TAG(glue_kind,b111):{pointer p;HGET_GLUE(b111);tail_append(spec2glue(p));}break; +/*:106*//*118:*/ +#line 1861 "hint.w" + +case TAG(hbox_kind,b000):{pointer p;HGET_BOX(b000);happend_to_vlist(p);}break; +case TAG(hbox_kind,b001):{pointer p;HGET_BOX(b001);happend_to_vlist(p);}break; +case TAG(hbox_kind,b010):{pointer p;HGET_BOX(b010);happend_to_vlist(p);}break; +case TAG(hbox_kind,b011):{pointer p;HGET_BOX(b011);happend_to_vlist(p);}break; +case TAG(hbox_kind,b100):{pointer p;HGET_BOX(b100);happend_to_vlist(p);}break; +case TAG(hbox_kind,b101):{pointer p;HGET_BOX(b101);happend_to_vlist(p);}break; +case TAG(hbox_kind,b110):{pointer p;HGET_BOX(b110);happend_to_vlist(p);}break; +case TAG(hbox_kind,b111):{pointer p;HGET_BOX(b111);happend_to_vlist(p);}break; +case TAG(vbox_kind,b000):{pointer p;HGET_BOX(b000);type(p)= vlist_node;happend_to_vlist(p);}break; +case TAG(vbox_kind,b001):{pointer p;HGET_BOX(b001);type(p)= vlist_node;happend_to_vlist(p);}break; +case TAG(vbox_kind,b010):{pointer p;HGET_BOX(b010);type(p)= vlist_node;happend_to_vlist(p);}break; +case TAG(vbox_kind,b011):{pointer p;HGET_BOX(b011);type(p)= vlist_node;happend_to_vlist(p);}break; +case TAG(vbox_kind,b100):{pointer p;HGET_BOX(b100);type(p)= vlist_node;happend_to_vlist(p);}break; +case TAG(vbox_kind,b101):{pointer p;HGET_BOX(b101);type(p)= vlist_node;happend_to_vlist(p);}break; +case TAG(vbox_kind,b110):{pointer p;HGET_BOX(b110);type(p)= vlist_node;happend_to_vlist(p);}break; +case TAG(vbox_kind,b111):{pointer p;HGET_BOX(b111);type(p)= vlist_node;happend_to_vlist(p);}break; +/*:118*//*125:*/ +#line 1977 "hint.w" + +case TAG(hset_kind,b000):{pointer p;HGET_SET(b000);hset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(hset_kind,b001):{pointer p;HGET_SET(b001);hset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(hset_kind,b010):{pointer p;HGET_SET(b010);hset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(hset_kind,b011):{pointer p;HGET_SET(b011);hset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(hset_kind,b100):{pointer p;HGET_SET(b100);hset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(hset_kind,b101):{pointer p;HGET_SET(b101);hset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(hset_kind,b110):{pointer p;HGET_SET(b110);hset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(hset_kind,b111):{pointer p;HGET_SET(b111);hset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; + +case TAG(vset_kind,b000):{pointer p;HGET_SET(b000);vset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(vset_kind,b001):{pointer p;HGET_SET(b001);vset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(vset_kind,b010):{pointer p;HGET_SET(b010);vset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(vset_kind,b011):{pointer p;HGET_SET(b011);vset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(vset_kind,b100):{pointer p;HGET_SET(b100);vset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(vset_kind,b101):{pointer p;HGET_SET(b101);vset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(vset_kind,b110):{pointer p;HGET_SET(b110);vset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +case TAG(vset_kind,b111):{pointer p;HGET_SET(b111);vset(p,sto,st,sho,sh,x);happend_to_vlist(p);}break; +/*:125*//*130:*/ +#line 2119 "hint.w" + +case TAG(hpack_kind,b000):HGET_PACK(hpack_kind,b000);break; +case TAG(hpack_kind,b010):HGET_PACK(hpack_kind,b010);break; +case TAG(hpack_kind,b100):HGET_PACK(hpack_kind,b100);break; +case TAG(hpack_kind,b110):HGET_PACK(hpack_kind,b110);break; +case TAG(hpack_kind,b001):HGET_PACK(hpack_kind,b001);break; +case TAG(hpack_kind,b011):HGET_PACK(hpack_kind,b011);break; +case TAG(hpack_kind,b101):HGET_PACK(hpack_kind,b101);break; +case TAG(hpack_kind,b111):HGET_PACK(hpack_kind,b111);break; + +case TAG(vpack_kind,b000):HGET_PACK(vpack_kind,b000);break; +case TAG(vpack_kind,b010):HGET_PACK(vpack_kind,b010);break; +case TAG(vpack_kind,b100):HGET_PACK(vpack_kind,b100);break; +case TAG(vpack_kind,b110):HGET_PACK(vpack_kind,b110);break; +case TAG(vpack_kind,b001):HGET_PACK(vpack_kind,b001);break; +case TAG(vpack_kind,b011):HGET_PACK(vpack_kind,b011);break; +case TAG(vpack_kind,b101):HGET_PACK(vpack_kind,b101);break; +case TAG(vpack_kind,b111):HGET_PACK(vpack_kind,b111);break; +/*:130*//*134:*/ +#line 2186 "hint.w" + +case TAG(kern_kind,b000):{HGET_KERN(b000);}break; +case TAG(kern_kind,b001):{HGET_KERN(b001);}break; +case TAG(kern_kind,b010):{HGET_KERN(b010);}break; +case TAG(kern_kind,b011):{HGET_KERN(b011);}break; +case TAG(kern_kind,b100):{HGET_KERN(b100);}break; +case TAG(kern_kind,b101):{HGET_KERN(b101);}break; +case TAG(kern_kind,b110):{HGET_KERN(b110);}break; +case TAG(kern_kind,b111):{HGET_KERN(b111);}break; +/*:134*//*138:*/ +#line 2235 "hint.w" + +case TAG(leaders_kind,0):tail_append(hget_leaders_ref(HGET8));break; +case TAG(leaders_kind,1):HGET_LEADERS(1);break; +case TAG(leaders_kind,2):HGET_LEADERS(2);break; +case TAG(leaders_kind,3):HGET_LEADERS(3);break; +case TAG(leaders_kind,b100|1):HGET_LEADERS(b100|1);break; +case TAG(leaders_kind,b100|2):HGET_LEADERS(b100|2);break; +case TAG(leaders_kind,b100|3):HGET_LEADERS(b100|3);break; +/*:138*//*142:*/ +#line 2275 "hint.w" + +case TAG(baseline_kind,b000):{cur_list.bs_pos= hpos-1;hget_baseline_ref(HGET8);}break; +case TAG(baseline_kind,b010):{HGET_BASELINE(b010);}break; +case TAG(baseline_kind,b011):{HGET_BASELINE(b011);}break; +case TAG(baseline_kind,b100):{HGET_BASELINE(b100);}break; +case TAG(baseline_kind,b101):{HGET_BASELINE(b101);}break; +case TAG(baseline_kind,b110):{HGET_BASELINE(b110);}break; +case TAG(baseline_kind,b111):{HGET_BASELINE(b111);}break; +/*:142*//*147:*/ +#line 2335 "hint.w" + +case TAG(ligature_kind,0):tail_append(hget_ligature_ref(HGET8));break; +case TAG(ligature_kind,1):HGET_LIG(1);break; +case TAG(ligature_kind,2):HGET_LIG(2);break; +case TAG(ligature_kind,3):HGET_LIG(3);break; +case TAG(ligature_kind,4):HGET_LIG(4);break; +case TAG(ligature_kind,5):HGET_LIG(5);break; +case TAG(ligature_kind,6):HGET_LIG(6);break; +case TAG(ligature_kind,7):HGET_LIG(7);break; +/*:147*//*151:*/ +#line 2385 "hint.w" + +case TAG(disc_kind,b000):tail_append(hget_hyphen_ref(HGET8));break; +case TAG(disc_kind,b001):{HGET_DISC(b001);tail_append(p);}break; +case TAG(disc_kind,b010):{HGET_DISC(b010);tail_append(p);}break; +case TAG(disc_kind,b011):{HGET_DISC(b011);tail_append(p);}break; +case TAG(disc_kind,b100):{HGET_DISC(b100);tail_append(p);}break; +case TAG(disc_kind,b101):{HGET_DISC(b101);tail_append(p);}break; +case TAG(disc_kind,b110):{HGET_DISC(b110);tail_append(p);}break; +case TAG(disc_kind,b111):{HGET_DISC(b111);tail_append(p);}break; +/*:151*//*156:*/ +#line 2448 "hint.w" + +case TAG(par_kind,b000):HGET_PAR(b000);break; +case TAG(par_kind,b010):HGET_PAR(b010);break; +case TAG(par_kind,b100):HGET_PAR(b100);break; +case TAG(par_kind,b110):HGET_PAR(b110);break; +/*:156*//*174:*/ +#line 2944 "hint.w" + +case TAG(math_kind,b000):HGET_MATH(b000);break; +case TAG(math_kind,b001):HGET_MATH(b001);break; +case TAG(math_kind,b010):HGET_MATH(b010);break; +case TAG(math_kind,b100):HGET_MATH(b100);break; +case TAG(math_kind,b101):HGET_MATH(b101);break; +case TAG(math_kind,b110):HGET_MATH(b110);break; +/*:174*//*176:*/ +#line 2973 "hint.w" + +case TAG(math_kind,b111):tail_append(new_math(0,before));break; +case TAG(math_kind,b011):tail_append(new_math(0,after));break; +/*:176*//*179:*/ +#line 2999 "hint.w" + +case TAG(adjust_kind,1):HGET_ADJUST(1);break; +/*:179*//*182:*/ +#line 3027 "hint.w" + +case TAG(table_kind,b000):HGET_TABLE(b000);break; +case TAG(table_kind,b001):HGET_TABLE(b001);break; +case TAG(table_kind,b010):HGET_TABLE(b010);break; +case TAG(table_kind,b011):HGET_TABLE(b011);break; +case TAG(table_kind,b100):HGET_TABLE(b100);break; +case TAG(table_kind,b101):HGET_TABLE(b101);break; +case TAG(table_kind,b110):HGET_TABLE(b110);break; +case TAG(table_kind,b111):HGET_TABLE(b111);break; + +case TAG(item_kind,b000):hget_list_pointer();break; +case TAG(item_kind,b001):hget_content();break; +case TAG(item_kind,b010):hget_content();break; +case TAG(item_kind,b011):hget_content();break; +case TAG(item_kind,b100):hget_content();break; +case TAG(item_kind,b101):hget_content();break; +case TAG(item_kind,b110):hget_content();break; +case TAG(item_kind,b111):(void)HGET8;hget_content();break; +/*:182*//*187:*/ +#line 3123 "hint.w" + +case TAG(stream_kind,b000):HGET_STREAM(b000);break; +case TAG(stream_kind,b010):HGET_STREAM(b010);break; +/*:187*//*191:*/ +#line 3160 "hint.w" + +case TAG(image_kind,b000):hget_image_ref(HGET8);break; +case TAG(image_kind,b100):HGET_IMAGE(b100);break; +case TAG(image_kind,b101):HGET_IMAGE(b101);break; +case TAG(image_kind,b110):HGET_IMAGE(b110);break; +case TAG(image_kind,b111):HGET_IMAGE(b111);break; +/*:191*//*195:*/ +#line 3198 "hint.w" + +case TAG(link_kind,b000):HGET_LINK(b000);break; +case TAG(link_kind,b001):HGET_LINK(b001);break; +case TAG(link_kind,b010):HGET_LINK(b010);break; +case TAG(link_kind,b011):HGET_LINK(b011);break; +/*:195*/ +#line 1186 "hint.w" + +default: +TAGERR(a); +} +} + +void hget_content(void) +{/*74:*/ +#line 1161 "hint.w" + +uint8_t a,z; +HGETTAG(a); +/*:74*/ +#line 1193 "hint.w" + +node_pos= (hpos-hstart)-1; +hget_node(a); +/*75:*/ +#line 1166 "hint.w" + +HGETTAG(z); +if(a!=z) +QUIT("Tag mismatch [%s,%d]!=[%s,%d] at 0x%x to "SIZE_F"\n", +NAME(a),INFO(a),NAME(z),INFO(z),node_pos,hpos-hstart-1); +/*:75*/ +#line 1196 "hint.w" + +if(nest_ptr==0&&tail!=head&&(type(tail)==penalty_node||type(tail)==glue_node||type(tail)==kern_node)) +store_map(tail,node_pos,0); +} + +static pointer hget_definition(uint8_t a) +{pointer p; +if(link(head)!=null)QUIT("Calling get_node with nonempty curent list"); +hget_node(a); +p= link(head); +if(p!=null&&link(p)!=null)QUIT("get_node returns multiple nodes"); +link(head)= null; +tail= head; +return p; +} +/*:76*//*163:*/ +#line 2769 "hint.w" + +void set_line_break_params(void) +{hset_param_list(line_break_params); +} +/*:163*//*199:*/ +#line 3331 "hint.w" + +pointer skip(uint8_t n) +{return cur_page->s[n].g;} +pointer*box_ptr(uint8_t n) +{return&streams[n].p;} +int count(uint8_t n) +{return cur_page->s[n].f;} +scaled dimen(uint8_t n) +{return xdimen(&cur_page->s[n].x);} + +/*:199*//*200:*/ +#line 3356 "hint.w" + +void hpage_init(void) +{int i; +if(streams==NULL||cur_page==NULL)return; +for(i= 0;i<=max_ref[stream_kind];i++) +if(streams[i].p!=null) +{flush_node_list(streams[i].p); +streams[i].p= streams[i].t= null; +} +page_contents= empty;page_tail= page_head;link(page_head)= null; +hset_cur_page(); +hset_margins(); +page_depth= page_height= 0; +memset(top_so_far,0,sizeof(top_so_far)); +max_depth= cur_page->d; +if(top_skip!=cur_page->g) +{delete_glue_ref(top_skip); +top_skip= cur_page->g; +add_glue_ref(top_skip); +} +} +/*:200*//*202:*/ +#line 3387 "hint.w" + +void hflush_contribution_list(void) +{if(link(contrib_head)!=null) +{flush_node_list(link(contrib_head)); +link(contrib_head)= null;tail= contrib_head; +} +} +/*:202*//*204:*/ +#line 3431 "hint.w" + +static bool hbuild_page_up(void) +{ +static scaled page_top_height; +pointer p; +pointer q,r; +int b,c; +int pi= 0; +if(link(contrib_head)==null)return false; +do{p= link(contrib_head); +/*209:*/ +#line 3553 "hint.w" + +switch(type(p)){ +case hlist_node:case vlist_node:case rule_node: +/*206:*/ +#line 3497 "hint.w" + +if(page_contents page_max_depth) +page_total= depth(p)-page_max_depth; +depth(p)= 0; +/*207:*/ +#line 3523 "hint.w" + +{page_top_height= width(top_skip); +page_total= page_total+page_top_height; +} +/*:207*/ +#line 3504 "hint.w" + +} +/*208:*/ +#line 3532 "hint.w" + +{int i; +for(i= 1;i<=6;i++) +{page_so_far[i]+= top_so_far[i]; +top_so_far[i]= 0; +} +} +/*:208*/ +#line 3506 "hint.w" + +page_total+= page_height+depth(p); +if(height(p)> page_top_height) +{page_total= page_total+height(p)-page_top_height; +page_height= page_top_height; +} +else +page_height= height(p); +/*:206*/ +#line 3556 "hint.w" +goto contribute; +case whatsit_node:goto contribute; +case glue_node:/*212:*/ +#line 3591 "hint.w" + +if(link(p)==null)return false; +/*213:*/ +#line 3598 "hint.w" + +#define top_shrink top_so_far[6] +#define top_total top_so_far[1] + +{pointer q= glue_ptr(p); +top_so_far[2+stretch_order(q)]+= stretch(q); +if((shrink_order(q)!=normal)&&(shrink(q)!=0)) +DBG(DBGTEX,"Infinite glue shrinkage found on current page"); +top_shrink+= shrink(q); +top_total+= width(q); +} +/*:213*/ +#line 3593 "hint.w" + +if(page_contents==empty||!precedes_break(link(p)))goto contribute; +pi= 0; +/*:212*/ +#line 3558 "hint.w" +break; +case kern_node:/*214:*/ +#line 3614 "hint.w" + +top_total+= width(p); +if(page_contents==empty|| +link(page_head)==null|| +type(link(page_head))!=glue_node) +goto contribute; +pi= 0; +/*:214*/ +#line 3559 "hint.w" +break; +case penalty_node:if(page_contents==empty)goto done1;else pi= penalty(p);break; +case ins_node:happend_insertion(p);goto contribute; +default:DBG(DBGTEX,"Unexpected node type %d in build_page_up ignored\n",type(p)); +} +/*217:*/ +#line 3648 "hint.w" + +if(pi page_shrink)b= awful_bad; +else b= badness(page_total-page_goal,page_shrink) +/*:216*/ +#line 3629 "hint.w" +; +if(b=10000)c= awful_bad; +/*:215*/ +#line 3650 "hint.w" + +if(c<=least_page_cost) +{best_page_break= p;best_size= page_goal; +least_page_cost= c; +r= link(page_ins_head); +while(r!=page_ins_head) +{best_ins_ptr(r)= last_ins_ptr(r); +r= link(r); +} +} +if((c==awful_bad)||(pi<=eject_penalty)) +{ +/*218:*/ +#line 3678 "hint.w" + +if(p!=best_page_break) +{while(link(page_head)!=best_page_break) +{q= link(page_head); +link(page_head)= link(q); +link(q)= null; +link(q)= link(head); +link(head)= q; +} +} +/*:218*/ +#line 3662 "hint.w" + +/*219:*/ +#line 3696 "hint.w" + +hloc_set_prev(link(page_head)); +while(true){ +q= link(page_head); +if(q==null)return false; +else if(q==best_page_break) +break; +else if(type(q)==penalty_node||type(q)==glue_node||type(q)==kern_node) +{link(page_head)= link(q);link(q)= null;flush_node_list(q);} +else break; +} +temp_ptr= new_spec(top_skip); +q= new_glue(temp_ptr);glue_ref_count(temp_ptr)= null; +if(width(temp_ptr)> page_height)width(temp_ptr)= width(temp_ptr)-page_height; +else width(temp_ptr)= 0; +link(q)= link(page_head); +link(page_head)= q; +best_page_break= null; +/*:219*/ +#line 3663 "hint.w" + +hpack_page(); +hfill_page_template(); +return true; +} +} +/*:217*/ +#line 3564 "hint.w" + +contribute: +/*210:*/ +#line 3571 "hint.w" + +link(contrib_head)= link(p); +link(p)= link(page_head); +if(link(page_head)==null)page_tail= p; +link(page_head)= p; +goto done; +/*:210*/ +#line 3566 "hint.w" + +done1:/*211:*/ +#line 3579 "hint.w" + +link(contrib_head)= link(p);link(p)= null;flush_node_list(p); +/*:211*/ +#line 3567 "hint.w" + +done: +/*:209*/ +#line 3441 "hint.w" +; +}while(link(contrib_head)!=null); +tail= contrib_head; +return false; +} +/*:204*//*221:*/ +#line 3772 "hint.w" + +static void clear_map(void) +{memset(map,0,sizeof(map)); +} +/*:221*//*222:*/ +#line 3785 "hint.w" + +void store_map(pointer p,uint32_t pos0,uint32_t offset) +{map[p]= pos0; +map[p+1]= offset; +} + +uint32_t hposition(pointer p) +{return map[p]; +} +/*:222*//*229:*/ +#line 3895 "hint.w" + +void hloc_init(void) +{cur_loc= 0; +hloc_clear(); +page_loc[cur_loc]= 0; +DBG(DBGPAGE,"loc_init: %d < %d < %d\n",lo_loc,cur_loc,hi_loc); +} +/*:229*//*234:*/ +#line 4031 "hint.w" + +int hint_begin(void) +{if(!hint_map())return 0; +hpos= hstart= hin_addr; +hend= hstart+hin_size; +hflush_contribution_list();hpage_init(); +flush_node_list(link(page_head)); +free_definitions(); +mem_init(); +list_init(); +hclear_dir(); +hclear_fonts(); +hget_banner(); +if(!hcheck_banner("hint")) +{hint_unmap();return 0;} +hget_directory(); +hget_definition_section(); +hget_content_section(); +leak_clear(); +clear_map(); +hloc_init(); +return 1; +} + +void hint_end(void) +{if(hin_addr==NULL)return; +hint_unmap(); +hin_addr= hpos= hstart= hend= NULL; +hflush_contribution_list();hpage_init(); +flush_node_list(link(page_head)); +free_definitions(); +list_leaks(); +hclear_dir(); +} +/*:234*//*238:*/ +#line 4125 "hint.w" + +bool hint_forward(void) +{hpage_init(); +if(hbuild_page())return true; +while(hpos hstart) +{hteg_content(); +if(hbuild_page_up())return true; +} +while(!flush_pages(0x0)) +if(hbuild_page_up())return true; +return false; +} +/*:239*//*241:*/ +#line 4194 "hint.w" + +bool flush_pages(uint32_t pos) +{pointer p= link(head); +while(p!=null&& +(type(p)==penalty_node||type(p)==glue_node||type(p)==kern_node)) +p= link(p); +if(p==null&&link(page_head)==null)return true; +tail_append(new_null_box()); +width(tail)= hhsize; +tail_append(hget_param_glue(fill_skip_no)); +store_map(tail,pos,0); +tail_append(new_penalty(-010000000000)); +store_map(tail,pos,0); +return false; +} +/*:241*//*263:*/ +#line 4707 "hint.w" + +int hint_get_outline_max(void) +{return max_outline;} +/*:263*//*268:*/ +#line 4787 "hint.w" + +hint_outline_t*hint_get_outlines(void) +{return hint_outlines; +} +/*:268*//*270:*/ +#line 4846 "hint.w" + +static bool trv_ignore= false; +static bool trv_skip_space= false; +static void(*trv_stream)(uint32_t c); +void trv_init(void(*f)(uint32_t c)) +{trv_ignore= false;trv_skip_space= false;trv_stream= f;} + +static void trv_char(uint32_t c) +{if(c==0x20)trv_skip_space= true; +else +{if(trv_skip_space) +{trv_skip_space= false;trv_stream(0x20);} +trv_stream(c); +} +} + +void trv_hlist(pointer p) +{while(p!=null) +{if(is_char_node(p)) +{if(!trv_ignore)trv_char(character(p)); +} +else switch(type(p)) +{case hlist_node:if(list_ptr(p)!=null)trv_hlist(list_ptr(p));break; +case vlist_node:if(list_ptr(p)!=null)trv_vlist(list_ptr(p));break; +case ligature_node: +if(!trv_ignore) +{pointer q= lig_ptr(p); +while(q!=null) +{trv_char(character(q)); +q= link(q); +} +} +break; +case glue_node: +if(!trv_ignore)trv_skip_space= true; +break; +case whatsit_node: +if(subtype(p)==ignore_node) +{if(ignore_info(p)==1) +{trv_hlist(ignore_list(p)); +trv_ignore= true; +} +else +trv_ignore= false; +} +break; +default:break; +} +p= link(p); +} +} + +void trv_vlist(pointer p) +{while(p!=null) +{switch(type(p)) +{case hlist_node:if(list_ptr(p)!=null)trv_hlist(list_ptr(p)); +if(!trv_ignore)trv_skip_space= true; +break; +case vlist_node:if(list_ptr(p)!=null)trv_vlist(list_ptr(p));break; +default:break; +} +p= link(p); +} +} +/*:270*/ +#line 7530 "hint.w" + + +/*:371*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/hint.h b/Build/source/texk/web2c/hitexdir/hintview/src/hint.h new file mode 100644 index 00000000000..a9e8ec7ea27 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/hint.h @@ -0,0 +1,167 @@ +/*370:*/ +#line 7493 "hint.w" + +#ifndef _HINT_H_ +#define _HINT_H_ + +typedef uint16_t pointer; +typedef int scaled; + +/*44:*/ +#line 728 "hint.w" + +extern void hrestore_param_list(void); +/*:44*//*49:*/ +#line 783 "hint.w" + +typedef struct{ +pointer p,t; +}stream_t; +extern stream_t*streams; +/*:49*//*64:*/ +#line 1009 "hint.w" + +extern void hfill_page_template(void); +/*:64*//*77:*/ +#line 1213 "hint.w" + +void hget_content(void); +/*:77*//*81:*/ +#line 1268 "hint.w" + +extern void hteg_content(void); +/*:81*//*164:*/ +#line 2774 "hint.w" + +extern void set_line_break_params(void); +/*:164*//*166:*/ +#line 2814 "hint.w" + +extern void hget_par_node(uint32_t offset); +/*:166*//*171:*/ +#line 2914 "hint.w" + +extern void hteg_par_node(uint32_t offset); +/*:171*//*197:*/ +#line 3267 "hint.w" + +extern pointer*pointer_def[32]; +extern scaled*dimen_def; +extern int32_t*integer_def; +/*:197*//*198:*/ +#line 3322 "hint.w" + +extern stream_t*streams; +extern bool flush_pages(uint32_t pos); +extern pointer skip(uint8_t n); +extern pointer*box_ptr(uint8_t n); +extern int count(uint8_t n); +extern scaled dimen(uint8_t n); +/*:198*//*201:*/ +#line 3379 "hint.w" + +extern void hpage_init(void); +/*:201*//*203:*/ +#line 3396 "hint.w" + +extern void hflush_contribution_list(void); +/*:203*//*223:*/ +#line 3799 "hint.w" + +#define HINT_NO_LOC 0xFFFFFFFFFFFFFFFF +#define PAGE_LOC(POS0,OFF) (((uint64_t)((POS0)+(OFF))<<32) + (uint64_t)(OFF)) +#define LOC_POS(P) ((P)>>32) +#define LOC_OFF(P) ((P)&0xFFFFFFFF) +#define LOC_POS0(P) (LOC_POS(P)-LOC_OFF(P)) +/*:223*//*226:*/ +#line 3836 "hint.w" + +extern uint64_t page_loc[]; +extern int cur_loc; +/*:226*//*228:*/ +#line 3885 "hint.w" + +extern void hloc_clear(void); +extern bool hloc_next(void); +extern bool hloc_prev(void); +extern uint64_t hlocation(pointer p); +/*:228*//*233:*/ +#line 4000 "hint.w" + +extern void hloc_init(void); +extern void store_map(pointer p,uint32_t pos,uint32_t offset); +extern uint32_t hposition(pointer p); +extern void hloc_set(uint64_t h); +extern void hloc_set_next(pointer p); +/*:233*//*235:*/ +#line 4068 "hint.w" + +extern int hint_begin(void); +extern void hint_end(void); +extern bool hint_map(void); +extern void hint_unmap(void); +/*:235*//*240:*/ +#line 4184 "hint.w" + +extern bool hint_forward(void); +extern bool hint_backward(void); +/*:240*//*243:*/ +#line 4215 "hint.w" + +extern scaled hvsize,hhsize; +/*:243*//*264:*/ +#line 4720 "hint.w" + +typedef struct{ +uint64_t pos; +uint8_t depth; +uint8_t where; +int p; +char*title; +}hint_outline_t; +extern hint_outline_t*hint_outlines; +/*:264*//*265:*/ +#line 4738 "hint.w" + +#define LABEL_UNDEF 0 +#define LABEL_TOP 1 +#define LABEL_BOT 2 +#define LABEL_MID 3 +/*:265*//*269:*/ +#line 4797 "hint.w" + +extern int hint_get_outline_max(void); +extern hint_outline_t*hint_get_outlines(void); +extern uint64_t hint_outline_page(int i); +/*:269*//*271:*/ +#line 4912 "hint.w" + +extern void trv_init(void(*f)(uint32_t c)); +extern void trv_vlist(pointer p); +extern void trv_hlist(pointer p); +/*:271*//*300:*/ +#line 5504 "hint.w" + +typedef struct{ +uint64_t pos; +uint8_t where; +int top,bottom,left,right; +}hint_link_t; +extern hint_link_t*hint_links; +extern int max_link; +/*:300*//*305:*/ +#line 5666 "hint.w" + +extern int hint_find_link(scaled x,scaled y,scaled precission); +extern uint64_t hint_link_page(int i); +/*:305*//*369:*/ +#line 7476 "hint.w" + +extern void leak_in(pointer p,int s); +extern void leak_out(pointer p,int s); +/*:369*/ +#line 7500 "hint.w" + + +#endif +/*:370*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/hrender.c b/Build/source/texk/web2c/hitexdir/hintview/src/hrender.c new file mode 100644 index 00000000000..bf0946e3e1e --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/hrender.c @@ -0,0 +1,1436 @@ +/*373:*/ +#line 7565 "hint.w" + +#include "basetypes.h" +#include "error.h" +#include "format.h" +#include +#include +#include "get.h" +#include "hrender.h" +#include "rendernative.h" +#include "htex.h" +#include "hint.h" + +/*310:*/ +#line 5748 "hint.w" + +extern struct font_s*hget_font(unsigned char f); +/*:310*//*321:*/ +#line 6086 "hint.w" + +extern void render_char(int x,int y,struct font_s*f,uint32_t cc,uint8_t s); +/*:321*/ +#line 7577 "hint.w" + + +/*236:*/ +#line 4097 "hint.w" + +double xdpi= 600.0,ydpi= 600.0; +/*:236*//*254:*/ +#line 4447 "hint.w" + +static bool forward_mode= false,backward_mode= false; +/*:254*//*273:*/ +#line 4959 "hint.w" + +static char*m_str; +static int m_length,m_chars; +/*:273*//*277:*/ +#line 5030 "hint.w" + +#define MAX_M_DIST 512 +static uint8_t m_dist[MAX_M_DIST+5]; +static int m_ptr,m_max; +/*:277*//*280:*/ +#line 5131 "hint.w" + +static int m_state,m_spaces; +static uint32_t m_d; +/*:280*//*285:*/ +#line 5253 "hint.w" + +static int m_focus; +static uint64_t m_page; +/*:285*//*288:*/ +#line 5289 "hint.w" + +static bool c_ignore; +static int m_style; +/*:288*//*296:*/ +#line 5458 "hint.w" + +static int cur_link= -1; +/*:296*//*324:*/ +#line 6128 "hint.w" + +static scaled cur_h,cur_v; +static scaled rule_ht,rule_dp,rule_wd; +static int cur_f; +static struct font_s*cur_fp; +static uint8_t cur_style= 0; +/*:324*/ +#line 7579 "hint.w" + +/*237:*/ +#line 4101 "hint.w" + +void hint_resize(int px_h,int px_v,double x_dpi,double y_dpi) +{static int old_px_h= 0,old_px_v= 0; +static double old_xdpi= 0.0,old_ydpi= 0.0; +if(old_px_h==px_h&&old_px_v==px_v&&old_xdpi==x_dpi&&old_ydpi==y_dpi)return; +old_px_h= px_h;old_px_v= px_v;old_xdpi= xdpi= x_dpi;old_ydpi= ydpi= y_dpi; +nativeSetSize(px_h,px_v,xdpi,ydpi); +hloc_clear(); +hflush_contribution_list();hpage_init(); +forward_mode= false; +backward_mode= false; +} +/*:237*//*248:*/ +#line 4312 "hint.w" + + +uint64_t hint_page_top(uint64_t h) +{if(hin_addr==NULL)return 0; +hpos= hstart+LOC_POS0(h); +if(hpos>=hend) +return hint_page_bottom(hend-hstart); +hflush_contribution_list(); +hloc_set(h); +if(LOC_OFF(h)) +hget_par_node(LOC_OFF(h)); +hint_forward(); +#if 0 +show_box(streams[0].p); +#endif +forward_mode= true; +backward_mode= false; +return h; +} +/*:248*//*249:*/ +#line 4335 "hint.w" + +uint64_t hint_page_get(void) +{ +DBG(DBGPAGE,"page_get: %d : 0x%"PRIx64"\n",cur_loc,page_loc[cur_loc]); + +if(hin_addr==NULL)return 0; +return page_loc[cur_loc]; +} +/*:249*//*250:*/ +#line 4351 "hint.w" + +uint64_t hint_page(void) +{uint64_t i; +if(streams==NULL)return 0; +i= hint_page_get(); +if(streams[0].p!=null) +return i; +else +return hint_page_top(i); +} +/*:250*//*251:*/ +#line 4367 "hint.w" + +uint64_t hint_page_home(void) +{uint64_t pos; +uint8_t where; +int n= zero_label_no; +/*71:*/ +#line 1083 "hint.w" + +where= labels[n].where; +#if 1 +pos= ((uint64_t)labels[n].pos<<32)+(labels[n].pos-labels[n].pos0); +#else +pos= ((uint64_t)labels[n].pos0<<32); +#endif +/*:71*/ +#line 4372 "hint.w" + +/*267:*/ +#line 4760 "hint.w" + +if(where==LABEL_TOP)return hint_page_top(pos); +else if(where==LABEL_BOT)return hint_page_bottom(pos); +else if(where==LABEL_MID)return hint_page_middle(pos); +else return hint_page_get(); +/*:267*/ +#line 4373 "hint.w" + +} +/*:251*//*252:*/ +#line 4394 "hint.w" + +double hint_get_fpos(void) +{ +DBG(DBGPAGE,"get_fpos: %d : 0x%"PRIx64"\n",cur_loc,page_loc[cur_loc]); + +if(hin_addr==NULL)return 0.0; +return(double)LOC_POS(page_loc[cur_loc])/(double)(hend-hstart); +} +/*:252*//*253:*/ +#line 4408 "hint.w" + +uint64_t hint_set_fpos(double fpos) +{uint32_t pos,pos0; +uint8_t*p,*q; +DBG(DBGPAGE,"set_fpos: %f\n",fpos); +if(hin_addr==NULL)return 0; +if(fpos<0.0)fpos= 0.0; +if(fpos> 1.0)fpos= 1.0; +pos= round((hend-hstart)*fpos); +p= hstart+pos; +q= hpos= hstart; +while(hpos p) +{pos= pos0= q-hstart; +if(KIND(*q)==par_kind&&KIND(hff_tag)==list_kind&&hff_list_size> 0) +{if(p>=hstart+hff_list_pos+hff_list_size) +pos= pos0= hpos-hstart; +else +{q= hpos= hstart+hff_list_pos; +while(hpos<=p) +{if(KIND(*hpos)==glue_kind||KIND(*hpos)==penalty_kind||KIND(*hpos)==disc_kind) +q= hpos; +hff_hpos(); +} +pos= q-hstart; +} +} +} +else +pos= pos0= hpos-hstart; +return hint_page_top(PAGE_LOC(pos0,pos-pos0)); +} +/*:253*//*255:*/ +#line 4452 "hint.w" + +uint64_t hint_page_next(void) +{if(hin_addr==NULL)return 0; +if(hloc_next()&&forward_mode) +{if(!hint_forward()) +{hloc_prev();return hint_page();} +forward_mode= true; +backward_mode= false; +return hint_page_get(); +} +else +{hflush_contribution_list();hpage_init(); +return hint_page(); +} +} +/*:255*//*256:*/ +#line 4477 "hint.w" + +uint64_t hint_page_prev(void) +{if(hin_addr==NULL)return 0; +if(hloc_prev()) +{hflush_contribution_list();hpage_init(); +return hint_page(); +} +else if(backward_mode) +{if(!hint_backward())return hint_page_top(0); +backward_mode= true; +forward_mode= false; +return hint_page_get(); +} +else +return hint_page_bottom(hint_page_get()); +} +/*:256*//*257:*/ +#line 4503 "hint.w" + +uint64_t hint_page_bottom(uint64_t h) +{if(hin_addr==NULL)return 0; +hloc_set(h); +hflush_contribution_list(); +hpos= hstart+LOC_POS0(h); +if(LOC_OFF(h)) +hteg_par_node(LOC_OFF(h)); +if(!hint_backward())return hint_page(); +backward_mode= true; +forward_mode= false; +return hint_page_get(); +} +/*:257*//*258:*/ +#line 4528 "hint.w" + +uint64_t hint_page_middle(uint64_t l) +{uint32_t pos,pos0,offset; +pointer p,tp= null; +scaled h= 0,d= 0,ht= 0,hp,dp; +int pi= 0; +if(hin_addr==NULL)return 0; +pos= LOC_POS(l); +offset= LOC_OFF(l); +pos0= LOC_POS0(l); +if(hstart+pos0+offset>=hend) +return hint_page_bottom(hend-hstart); +hflush_contribution_list(); +hpos= hstart+pos0; +hget_content(); +p= link(contrib_head); +if(offset> 0) +{/*259:*/ +#line 4567 "hint.w" + +{while(p!=null) +{/*260:*/ +#line 4594 "hint.w" + +switch(type(p)) +{case hlist_node:case vlist_node:case rule_node: +hp= height(p);dp= depth(p); +pi= inf_penalty; +break; +case glue_node: +hp= width(glue_ptr(p));dp= 0; +pi= 0; +break; +case kern_node: +hp= width(p);dp= 0; +pi= inf_penalty; +break; +case penalty_node: +hp= dp= 0; +pi= penalty(p); +break; +default: +pi= hp= dp= 0; +} +/*:260*/ +#line 4569 "hint.w" + +h+= d+hp; +d= dp; +if(pi<=0&&tp==null) +{uint32_t t= LOC_POS(hlocation(p)); +if(t> pos) +{tp= p;ht= h; +break; +} +} +p= link(p); +} +if(tp==null)ht= h; +if(ht>=hvsize) +{/*261:*/ +#line 4621 "hint.w" + +pointer q= contrib_head; +scaled dh= ht-hvsize/2; +p= link(contrib_head); +h= d= 0; +while(p!=null) +{/*260:*/ +#line 4594 "hint.w" + +switch(type(p)) +{case hlist_node:case vlist_node:case rule_node: +hp= height(p);dp= depth(p); +pi= inf_penalty; +break; +case glue_node: +hp= width(glue_ptr(p));dp= 0; +pi= 0; +break; +case kern_node: +hp= width(p);dp= 0; +pi= inf_penalty; +break; +case penalty_node: +hp= dp= 0; +pi= penalty(p); +break; +default: +pi= hp= dp= 0; +} +/*:260*/ +#line 4627 "hint.w" + +h= h+d+hp; +d= dp; +if(pi<=0&&h>=dh)break; +q= p; +p= link(p); +} +if(p!=null) +{offset= LOC_OFF(hlocation(p)); +link(q)= null; +flush_node_list(link(contrib_head)); +link(contrib_head)= p; +} +/*:261*/ +#line 4583 "hint.w" + +goto found; +} +} +/*:259*/ +#line 4545 "hint.w" + +} +else if(p!=null&&type(p)==penalty_node) +pi= penalty(p); +/*262:*/ +#line 4646 "hint.w" + +{pointer save_h= link(contrib_head); +pointer save_t= tail; +uint8_t*save_hpos= hpos; +pointer best_p= null; +int best_pi= pi; +link(contrib_head)= null;p= tail= contrib_head; +hpos= hstart+pos0; +h= ht; +while(h<(hvsize/4*3)) +{while(link(p)==null&&hpos> 0) +hteg_content(); +if(link(p)==null) +break; +else +p= link(p); +/*260:*/ +#line 4594 "hint.w" + +switch(type(p)) +{case hlist_node:case vlist_node:case rule_node: +hp= height(p);dp= depth(p); +pi= inf_penalty; +break; +case glue_node: +hp= width(glue_ptr(p));dp= 0; +pi= 0; +break; +case kern_node: +hp= width(p);dp= 0; +pi= inf_penalty; +break; +case penalty_node: +hp= dp= 0; +pi= penalty(p); +break; +default: +pi= hp= dp= 0; +} +/*:260*/ +#line 4662 "hint.w" + +h= h+dp+hp; +if(pi max_outline)return hint_page_get(); +pos= hint_outlines[i].pos; +where= hint_outlines[i].where; +/*267:*/ +#line 4760 "hint.w" + +if(where==LABEL_TOP)return hint_page_top(pos); +else if(where==LABEL_BOT)return hint_page_bottom(pos); +else if(where==LABEL_MID)return hint_page_middle(pos); +else return hint_page_get(); +/*:267*/ +#line 4756 "hint.w" + +} +/*:266*//*274:*/ +#line 4964 "hint.w" + +void hint_set_mark(char*m,int s) +{m_str= m; +m_length= s; +/*275:*/ +#line 4975 "hint.w" + +if(m_length> 0) +{int i,j,k; +for(i= j= k= 0;i>7; +m_dist[m_ptr++]= 0x80+(d&0x7F); +return; +} +if(d>=(1<<28))m_dist[m_ptr++]= d>>28; +if(d>=(1<<21))m_dist[m_ptr++]= (d>>21)&0x7F; +if(d>=(1<<14))m_dist[m_ptr++]= (d>>14)&0x7F; +d= d&((1<<14)-1); +goto two_byte; +} +} +} + +static uint32_t m_get(void) +{uint32_t x,y; +x= m_dist[m_ptr++]; +if(x==0xFF)return HINT_NO_POS; +if(x&0x80)return x&0x7F; +while(true) +{y= m_dist[m_ptr++]; +if(y&0x80)return(x<<7)+(y&0x7F); +x= (x<<7)+y; +} +} +/*:278*//*279:*/ +#line 5105 "hint.w" + +static int m_next(int i) +{while((0x80&m_dist[i])==0)i++; +if(m_dist[i]==0xFF)return 0; +else return i+1; +} + +static int m_prev(int i) +{if(i<=0)return m_max; +i--; +while(i> 0&&(0x80&m_dist[i-1])==0)i--; +return i; +} +/*:279*//*281:*/ +#line 5136 "hint.w" + +static void next_m_char(uint32_t c) +{ +reconsider: + +if(m_state==0&&c!=m_str[0]) +{if(c!=' ') +m_d++; +} +else if(c==m_str[m_state]) +{if(m_state==0)m_spaces= 0; +m_state++; +if(m_state==m_length) +{m_put(m_d); +m_d= 0; +m_state= 0; +} +} +else +/*282:*/ +#line 5170 "hint.w" + +{int i= 0,j= 0; +do{ +if(m_str[i]==' ')j++; +i++; +}while(i=0&&m_str[m_state]==' ') +{if(m_state==0)m_spaces= 0; +m_state++;m_spaces++; +if(m_state==m_length) +{m_put(m_d); +m_d= 0; +m_state= 0; +} +else +m_state= -m_state; +} +else if(m_state> 0) +{m_d= m_d+m_state-m_spaces;m_state= 0;} +} +#endif +/*:283*//*284:*/ +#line 5206 "hint.w" + +#if 0 +static void vlist_mark(pointer p); +static void hlist_mark(pointer p) +{while(p!=null) +{if(is_char_node(p)&&!m_ignore)next_m_char(character(p)); +else switch(type(p)) +{case hlist_node:if(list_ptr(p)!=null)hlist_mark(list_ptr(p));break; +case vlist_node:if(list_ptr(p)!=null)vlist_mark(list_ptr(p));break; +case ligature_node: +{pointer q= lig_ptr(p); +while(q!=null) +{if(!m_ignore)next_m_char(character(q));q= link(q); +} +} +break; +case glue_node:if(!m_ignore)next_m_space();break; +case whatsit_node: +if(subtype(p)==ignore_node) +{if(ignore_info(p)==1) +{hlist_mark(ignore_list(p)); +m_ignore= 1; +} +else +m_ignore= 0; +} +break; +default:break; +} +p= link(p); +} +} + +static void vlist_mark(pointer p) +{while(p!=null) +{switch(type(p)) +{case hlist_node:if(list_ptr(p)!=null)hlist_mark(list_ptr(p)); +if(!m_ignore)next_m_space();break; +case vlist_node:if(list_ptr(p)!=null)vlist_mark(list_ptr(p));break; +default:break; +} +p= link(p); +} +} +#endif +/*:284*//*286:*/ +#line 5259 "hint.w" + +void hmark_page(void) +{if(streams==NULL||streams[0].p==null)return; +m_ptr= 0; +if(m_page!=page_loc[cur_loc]) +{m_page= page_loc[cur_loc]; +m_focus= 0; +} +if(m_length> 0) +{m_d= 0; +m_state= 0; +trv_init(next_m_char); +if(type(streams[0].p)==vlist_node) +trv_vlist(list_ptr(streams[0].p)); +else +trv_hlist(list_ptr(streams[0].p)); +} +m_put(0xFF); +if(m_focus>=m_max)m_focus= 0; +} +/*:286*//*293:*/ +#line 5374 "hint.w" + +void c_ignore_list(pointer p) +{while(p!=null) +{if(is_char_node(p)) +{/*290:*/ +#line 5314 "hint.w" + +{while(m_d==0) +{m_style^= MARK_BIT; +if(m_style&MARK_BIT) +{if(m_ptr==m_focus)m_style|= FOCUS_BIT;else m_style&= ~FOCUS_BIT; +m_d= m_chars; +} +else +{m_style&= ~FOCUS_BIT; +m_d= m_get(); +} +} +m_d--; +} +/*:290*/ +#line 5378 "hint.w" + +cur_style|= m_style; +} +else +{switch(type(p)) +{case hlist_node: +case vlist_node:c_ignore_list(list_ptr(p));break; +case ligature_node: +{pointer q= lig_ptr(p); +while(q!=null) +{/*290:*/ +#line 5314 "hint.w" + +{while(m_d==0) +{m_style^= MARK_BIT; +if(m_style&MARK_BIT) +{if(m_ptr==m_focus)m_style|= FOCUS_BIT;else m_style&= ~FOCUS_BIT; +m_d= m_chars; +} +else +{m_style&= ~FOCUS_BIT; +m_d= m_get(); +} +} +m_d--; +} +/*:290*/ +#line 5388 "hint.w" + +cur_style|= m_style; +q= link(q); +} +} +break; +} +} +p= link(p); +} +} +/*:293*//*294:*/ +#line 5421 "hint.w" + +bool hint_prev_mark(void) +{m_focus= m_prev(m_focus); +while(m_focus==0&&m_page> 0) +{hint_page_prev(); +m_focus= m_prev(0); +} +return(m_focus!=0); +} + +bool hint_next_mark(void) +{m_focus= m_next(m_focus); +while(m_focus==0) +{uint64_t p= m_page; +if(p==hint_page_next())break; +m_focus= m_next(0); +} +return(m_focus!=0); +} +/*:294*//*302:*/ +#line 5522 "hint.w" + +static int links_allocated= 0; +void add_new_link(int n,pointer p,scaled h,scaled v) +{hint_link_t*t; +uint64_t pos; +uint8_t where; +max_link++; +if(max_link>=links_allocated) +{if(links_allocated<=0) +{links_allocated= 32; +ALLOCATE(hint_links,links_allocated,hint_link_t); +} +else +{links_allocated= links_allocated*1.4142136+0.5; +REALLOCATE(hint_links,links_allocated,hint_link_t); +} +} +t= hint_links+max_link; +REF_RNG(label_kind,n); +/*71:*/ +#line 1083 "hint.w" + +where= labels[n].where; +#if 1 +pos= ((uint64_t)labels[n].pos<<32)+(labels[n].pos-labels[n].pos0); +#else +pos= ((uint64_t)labels[n].pos0<<32); +#endif +/*:71*/ +#line 5541 "hint.w" + +t->where= where; +t->pos= pos; +if(type(p)==hlist_node) +{scaled hp= height(p),dp= depth(p); +t->top= v-hp; +t->bottom= v+dp; +t->left= h; +t->right= h; +} +else +{t->top= v; +t->bottom= v; +t->left= h; +t->right= h+width(p); +} +} + +void end_new_link(int n,pointer p,scaled h,scaled v) +{hint_link_t*t; +t= hint_links+max_link; +if(type(p)==hlist_node) +t->right= h; +else +t->bottom= v; +} +/*:302*//*303:*/ +#line 5591 "hint.w" + +static scaled hlink_distance(scaled x,scaled y,hint_link_t*t) +{scaled d,dx= 0,dy= 0; +d= t->top-y; +if(d> 0)dy= d; +else +{d= y-t->bottom; +if(d> 0)dy= d; +} +d= x-t->right; +if(d> 0)dx= d; +else +{d= t->left-x; +if(d> 0)dx= d; +} +if(dx> dy)return dx; +else return dy; + +} +int hint_find_link(scaled x,scaled y,scaled precission) +{static int last_hit= -1; +int i; +hint_link_t*t; +if(max_link<0)return-1; +if(last_hit<0||last_hit> max_link)last_hit= max_link/2; +i= last_hit; +t= hint_links+i; +if(hlink_distance(x,y,t)<=precission) +return i; +else if(ytop) +{while(i> 0) +{i--; +t= hint_links+i; +if(hlink_distance(x,y,t)<=precission) +{last_hit= i;return i;} +} +return-1; +} +else +{int k; +scaled d,min_d= precission; +int min_i= -1; +for(k= 0;k<=max_link;k++) +{i= i+1; +if(i> max_link)i= 0; +t= hint_links+i; +d= hlink_distance(x,y,t); +if(d max_link)return hint_page_get(); +h= hint_links[i].pos; +w= hint_links[i].where; +if(w==LABEL_TOP)return hint_page_top(h); +else if(w==LABEL_BOT)return hint_page_bottom(h); +else if(w==LABEL_MID)return hint_page_middle(h); +else return hint_page_get(); +} +/*:304*//*322:*/ +#line 6093 "hint.w" + +static void render_rule(int x,int y,int w,int h) +{if(w> 0&&h> 0) +nativeRule(SP2PT(x),SP2PT(y),SP2PT(w),SP2PT(h)); +} +/*:322*//*323:*/ +#line 6104 "hint.w" + +void render_image(int x,int y,int w,int h,uint32_t n) +{ +uint8_t*spos,*sstart,*send; +spos= hpos;sstart= hstart;send= hend; +hget_section(n); +nativeImage(SP2PT(x),SP2PT(y),SP2PT(w),SP2PT(h),hstart,hend); +hpos= spos;hstart= sstart;hend= send; +} +/*:323*//*325:*/ +#line 6136 "hint.w" + +static void vlist_render(pointer this_box); + +static void hlist_render(pointer this_box) +{scaled base_line; +scaled left_edge; +scaled save_h; +glue_ord g_order; +uint8_t g_sign; +pointer p; +pointer leader_box; +scaled leader_wd; +scaled lx; +scaled edge; +double glue_temp; +double cur_glue; +scaled cur_g; +int local_link= -1; +uint8_t f; +uint32_t c; + +cur_g= 0; +cur_glue= 0.0; +g_order= glue_order(this_box); +g_sign= glue_sign(this_box); +p= list_ptr(this_box); +#ifdef DEBUG +if(p==0xffff) +QUIT("Undefined list pointer in hbox 0x%x-> mem[0x%x] -> 0x%x\n", +this_box,mem[this_box].i,p); +#endif +base_line= cur_v; +left_edge= cur_h; +/*299:*/ +#line 5488 "hint.w" + +if(cur_link>=0) +{add_new_link(cur_link,this_box,cur_h,cur_v); +local_link= cur_link; +cur_link= -1; +} +/*:299*/ +#line 6169 "hint.w" + +while(p!=null) +{ +#ifdef DEBUG +if(p==0xffff) +QUIT("Undefined pointer in hlist 0x%x\n",p); +if(link(p)==0xffff) +QUIT("Undefined link in hlist mem[0x%x]=0x%x\n",p,mem[p].i); +#endif +if(is_char_node(p)) +{do +{f= font(p); +c= character(p); +if(!c_ignore&&c!=' ') +{cur_style= cur_style&~(MARK_BIT|FOCUS_BIT); +/*290:*/ +#line 5314 "hint.w" + +{while(m_d==0) +{m_style^= MARK_BIT; +if(m_style&MARK_BIT) +{if(m_ptr==m_focus)m_style|= FOCUS_BIT;else m_style&= ~FOCUS_BIT; +m_d= m_chars; +} +else +{m_style&= ~FOCUS_BIT; +m_d= m_get(); +} +} +m_d--; +} +/*:290*/ +#line 6184 "hint.w" + +cur_style|= m_style; +} + +render_c: +if(f!=cur_f) +{ +#ifdef DEBUG +if(f> max_ref[font_kind]) +QUIT("Undefined Font %d mem[0x%x]=0x%x\n", +f,p,mem[p].i); +#endif +cur_fp= hget_font(f); +cur_f= f; +} +render_char(cur_h,cur_v,cur_fp,c,cur_style); +cur_h= cur_h+char_width(f,char_info(f,c)); +#ifdef DEBUG +if(link(p)==0xffff) +QUIT("Undefined link in charlist mem[0x%x]=0x%x\n",p,mem[p].i); +#endif +p= link(p); +}while(is_char_node(p)); +} +else +{switch(type(p)) +{case hlist_node: +case vlist_node: +#ifdef DEBUG +if(list_ptr(p)==0xffff) +QUIT("Undefined list pointer in hlist mem[0x%x] = 0x%x -> 0x%x\n", +p,mem[p].i,list_ptr(p)); +#endif +if(list_ptr(p)==null)cur_h= cur_h+width(p); +else +{cur_v= base_line+shift_amount(p); +edge= cur_h; +if(type(p)==vlist_node) +vlist_render(p); +else +hlist_render(p); +cur_h= edge+width(p);cur_v= base_line; +} +break; +case rule_node: +rule_ht= height(p);rule_dp= depth(p);rule_wd= width(p); +goto fin_rule; +case whatsit_node: +/*292:*/ +#line 5351 "hint.w" + +if(subtype(p)==ignore_node) +{if(ignore_info(p)==1) +{cur_style= cur_style&~(MARK_BIT|FOCUS_BIT); +c_ignore_list(ignore_list(p)); +c_ignore= true; +} +else +c_ignore= false; +} +/*:292*/ +#line 6232 "hint.w" + +else/*297:*/ +#line 5462 "hint.w" + +if(subtype(p)==start_link_node) +{cur_style|= LINK_BIT; +local_link= label_ref(p); +add_new_link(local_link,this_box,cur_h,cur_v); +} +else if(subtype(p)==end_link_node) +{cur_style&= ~LINK_BIT; +end_new_link(local_link,this_box,cur_h,cur_v); +local_link= -1; +} +/*:297*/ +#line 6233 "hint.w" + +else if(subtype(p)==image_node) +{scaled h,w; +w= image_width(p); +h= image_height(p); +if(g_sign!=normal) +{if(g_sign==stretching) +{if(image_stretch_order(p)==g_order) +{vet_glue((double)(glue_set(this_box))*image_stretch(p)); +w= w+round(glue_temp); +} +} +else if(image_shrink_order(p)==g_order) +{vet_glue((double)(glue_set(this_box))*image_shrink(p)); +w= w-round(glue_temp); +} +} +if(w!=image_width(p)) +{double f; +f= (double)w/(double)image_width(p); +h= round((double)h*f); +} +render_image(cur_h,cur_v,w,h,image_no(p)); +cur_h= cur_h+w; +} +break; +case glue_node: +{pointer g; +g= glue_ptr(p);rule_wd= width(g)-cur_g; +if(g_sign!=normal) +{if(g_sign==stretching) +{if(stretch_order(g)==g_order) +{cur_glue= cur_glue+stretch(g); +vet_glue((double)(glue_set(this_box))*cur_glue); +cur_g= round(glue_temp); +} +} +else if(shrink_order(g)==g_order) +{cur_glue= cur_glue-shrink(g); +vet_glue((double)(glue_set(this_box))*cur_glue); +cur_g= round(glue_temp); +} +} +rule_wd= rule_wd+cur_g; +if(subtype(p)>=a_leaders) +{leader_box= leader_ptr(p); +if(type(leader_box)==rule_node) +{rule_ht= height(leader_box);rule_dp= depth(leader_box); +goto fin_rule; +} +leader_wd= width(leader_box); +if((leader_wd> 0)&&(rule_wd> 0)) +{rule_wd= rule_wd+10; +edge= cur_h+rule_wd;lx= 0; + +if(subtype(p)==a_leaders) +{save_h= cur_h; +cur_h= left_edge+leader_wd*((cur_h-left_edge)/leader_wd); +if(cur_h 0)&&(rule_wd> 0)) +{cur_v= base_line+rule_dp; +render_rule(cur_h,cur_v,rule_wd,rule_ht); +cur_v= base_line; +} +move_past:cur_h= cur_h+rule_wd; +next_p: +#ifdef DEBUG +if(link(p)==0xffff) +QUIT("Undefined link in hlist mem[0x%x]=0x%x\n",p,mem[p].i); +#endif +p= link(p); +} +} +/*298:*/ +#line 5478 "hint.w" + +if(local_link>=0) +{end_new_link(local_link,this_box,cur_h,cur_v); +cur_link= local_link; +} +/*:298*/ +#line 6351 "hint.w" + +} + +static void vlist_render(pointer this_box) +{ +scaled left_edge; +scaled top_edge; +scaled save_v; +glue_ord g_order; +uint8_t g_sign; +pointer p; +pointer leader_box; +scaled leader_ht; +scaled lx; +scaled edge; +double glue_temp; +double cur_glue; +scaled cur_g; + +cur_g= 0;cur_glue= float_constant(0); +g_order= glue_order(this_box); +g_sign= glue_sign(this_box);p= list_ptr(this_box); +#ifdef DEBUG +if(p==0xffff) +QUIT("Undefined list pointer in vbox 0x%x-> mem[0x%x] -> 0x%x\n", +this_box,mem[this_box].i,p); +#endif +left_edge= cur_h;cur_v= cur_v-height(this_box); +top_edge= cur_v; +while(p!=null) +{if(is_char_node(p))DBG(DBGTEX,"Glyph in vertical list ignored"); +else +{switch(type(p)) +{case hlist_node: +case vlist_node: +#ifdef DEBUG +if(list_ptr(p)==0xffff) +QUIT("Undefined list pointer in vlist mem[0x%x] = 0x%x -> 0x%x\n", +p,mem[p].i,list_ptr(p)); +#endif +if(list_ptr(p)==null)cur_v= cur_v+height(p)+depth(p); +else +{cur_v= cur_v+height(p);save_v= cur_v; +cur_h= left_edge+shift_amount(p); +if(type(p)==vlist_node)vlist_render(p); +else +hlist_render(p); +cur_v= save_v+depth(p);cur_h= left_edge; +} +break; +case rule_node: +rule_ht= height(p);rule_dp= depth(p);rule_wd= width(p); +goto fin_rule; +case whatsit_node: +if(subtype(p)==image_node) +{scaled h,w; +w= image_width(p); +h= image_height(p); +if(g_sign!=normal) +{if(g_sign==stretching) +{if(image_stretch_order(p)==g_order) +{vet_glue((double)(glue_set(this_box))*image_stretch(p)); +h= h+round(glue_temp); +} +} +else if(image_shrink_order(p)==g_order) +{vet_glue((double)(glue_set(this_box))*image_shrink(p)); +h= h-round(glue_temp); +} +} +if(h!=image_height(p)) +{double f; +f= (double)h/(double)image_height(p); +w= round((double)w*f); +} +cur_v= cur_v+h; +render_image(cur_h,cur_v,w,h,image_no(p)); +} +break; +case glue_node: +{pointer g= glue_ptr(p);rule_ht= width(g)-cur_g; +if(g_sign!=normal) +{if(g_sign==stretching) +{if(stretch_order(g)==g_order) +{cur_glue= cur_glue+stretch(g); +vet_glue((double)(glue_set(this_box))*cur_glue); +cur_g= round(glue_temp); +} +} +else if(shrink_order(g)==g_order) +{cur_glue= cur_glue-shrink(g); +vet_glue((double)(glue_set(this_box))*cur_glue); +cur_g= round(glue_temp); +} +} +rule_ht= rule_ht+cur_g; +if(subtype(p)>=a_leaders) +{leader_box= leader_ptr(p); +if(type(leader_box)==rule_node) +{rule_wd= width(leader_box);rule_dp= 0; +goto fin_rule; +} +leader_ht= height(leader_box)+depth(leader_box); +if((leader_ht> 0)&&(rule_ht> 0)) +{rule_ht= rule_ht+10; +edge= cur_v+rule_ht;lx= 0; +if(subtype(p)==a_leaders) +{save_v= cur_v; +cur_v= top_edge+leader_ht*((cur_v-top_edge)/leader_ht); +if(cur_v 0)&&(rule_wd> 0)) +{render_rule(cur_h,cur_v,rule_wd,rule_ht); +} +goto next_p; + +move_past: +cur_v= cur_v+rule_ht; +} +next_p: +#if 0 +if(link(p)==1||link(p)==0xffff){ +show_box(streams[0].p); +QUIT("vertical node mem[0x%x] =0x%x ->linking to node 0x%x\n", +p,mem[p].i,link(p)); +} +#endif +p= link(p); +} +} + +/*:325*//*326:*/ +#line 6526 "hint.w" + +uint64_t hint_blank(void) +{nativeBlank(); +return 0; +} +/*:326*//*327:*/ +#line 6535 "hint.w" + + +void hint_render(void) +{nativeBlank(); +if(streams==NULL||streams[0].p==null)return; +cur_h= 0; +cur_v= height(streams[0].p); +cur_f= -1;cur_fp= NULL; +cur_link= -1;max_link= -1; +/*289:*/ +#line 5307 "hint.w" + +m_ptr= 0;m_d= 0;m_style= MARK_BIT;c_ignore= false;cur_style= 0; +/*:289*/ +#line 6544 "hint.w" + +if(type(streams[0].p)==vlist_node) +vlist_render(streams[0].p); +else +hlist_render(streams[0].p); +} +/*:327*/ +#line 7580 "hint.w" + +/*:373*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/hrender.h b/Build/source/texk/web2c/hitexdir/hintview/src/hrender.h new file mode 100644 index 00000000000..7d389335aea --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/hrender.h @@ -0,0 +1,45 @@ +/*372:*/ +#line 7535 "hint.w" + +#ifndef _HRENDER_H +#define _HRENDER_H +/*276:*/ +#line 4997 "hint.w" + +#define MARK_BIT 0x1 +#define FOCUS_BIT 0x2 +/*:276*//*295:*/ +#line 5447 "hint.w" + +#define LINK_BIT 0x4 +/*:295*//*319:*/ +#line 6067 "hint.w" + +#define SP2PT(X) ((X)/(double)(1<<16)) +/*:319*/ +#line 7538 "hint.w" + + +extern int page_h,page_v; +extern double xdpi,ydpi; +extern uint64_t hint_blank(void); +extern void hint_render(void); +extern uint64_t hint_page_get(void); +extern uint64_t hint_page_top(uint64_t h); +extern uint64_t hint_page_middle(uint64_t h); +extern uint64_t hint_page_bottom(uint64_t h); +extern uint64_t hint_page(void); +extern uint64_t hint_page_next(void); +extern uint64_t hint_page_prev(void); +extern uint64_t hint_page_home(void); +extern void hint_resize(int px_h,int px_v,double xdpi,double ydpi); +extern void hint_clear_fonts(bool rm); +extern void hmark_page(void); +extern void hint_set_mark(char*m,int s); +extern bool hint_prev_mark(void); +extern bool hint_next_mark(void); +extern double hint_get_fpos(void); +extern uint64_t hint_set_fpos(double fpos); + +#endif +/*:372*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/htex.c b/Build/source/texk/web2c/hitexdir/hintview/src/htex.c new file mode 100644 index 00000000000..4c3d5d18066 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/htex.c @@ -0,0 +1,3757 @@ +/*4:*/ +#line 16 "htex.ch" + +#ifndef _HETX_H_ +#define _HTEX_H_ + +#include "basetypes.h" +#include +#include + +#include "error.h" +#include "format.h" +#include "get.h" +#include "htex.h" +#include "hint.h" +/*120:*/ +#line 262 "htex.ch" + +pointer temp_ptr; +#line 2494 "btex.w" + +/*:120*//*121:*/ +#line 272 "htex.ch" + +memory_word mem0[mem_max-mem_min+1],*const mem= mem0-mem_min; +pointer lo_mem_max; +pointer hi_mem_min; +#line 2528 "btex.w" + +/*:121*//*122:*/ +#line 282 "htex.ch" + +static int var_used,dyn_used; +#line 2539 "btex.w" +#ifdef STAT +#define incr_dyn_used incr(dyn_used) +#define decr_dyn_used decr(dyn_used) +#else +#define incr_dyn_used +#define decr_dyn_used +#endif + +/*:122*//*123:*/ +#line 292 "htex.ch" + +static pointer avail; +#line 2563 "btex.w" + +/*:123*//*129:*/ +#line 329 "htex.ch" + +static pointer rover; +#line 2667 "btex.w" + +/*:129*//*658:*/ +#line 1085 "htex.ch" + +static scaled total_stretch0[filll-normal+1],*const total_stretch= total_stretch0-normal,total_shrink0[filll-normal+1],*const total_shrink= total_shrink0-normal; + +#line 12902 "btex.w" + +/*:658*//*660:*/ +#line 1093 "htex.ch" + +pointer adjust_tail= null; +#line 12910 "btex.w" + +/*:660*//*829:*/ +#line 1208 "htex.ch" + +pointer just_box; +#line 16025 "btex.w" + +/*:829*//*837:*/ +#line 1258 "htex.ch" + +static pointer passive; +#line 16168 "btex.w" +static pointer printed_node; +static halfword pass_number; + +/*:837*//*840:*/ +#line 1265 "htex.ch" + +static scaled active_width0[6],*const active_width= active_width0-1; +#line 16207 "btex.w" + +static scaled cur_active_width0[6],*const cur_active_width= cur_active_width0-1; +static scaled background0[6],*const background= background0-1; +static scaled break_width0[6],*const break_width= break_width0-1; + +/*:840*//*843:*/ +#line 1272 "htex.ch" + +static bool no_shrink_error_yet; +#line 16264 "btex.w" + +/*:843*//*847:*/ +#line 1303 "htex.ch" + +static pointer cur_p; +#line 16324 "btex.w" +static bool second_pass; +static bool final_pass; +static int threshold; + +/*:847*//*853:*/ +#line 1311 "htex.ch" + +static int minimal_demerits0[tight_fit-very_loose_fit+1],*const minimal_demerits= minimal_demerits0-very_loose_fit; + +#line 16426 "btex.w" +static int minimum_demerits; + +static pointer best_place0[tight_fit-very_loose_fit+1],*const best_place= best_place0-very_loose_fit; + +static halfword best_pl_line0[tight_fit-very_loose_fit+1],*const best_pl_line= best_pl_line0-very_loose_fit; + + +/*:853*//*860:*/ +#line 1319 "htex.ch" + +static scaled disc_width; +#line 16543 "btex.w" + +/*:860*//*869:*/ +#line 1326 "htex.ch" + +static halfword easy_line; +#line 16683 "btex.w" +static halfword last_special_line; + +static scaled first_width; + +static scaled second_width; +static scaled first_indent; +static scaled second_indent; + +/*:869*//*895:*/ +#line 1430 "htex.ch" + +static pointer best_bet; +#line 17193 "btex.w" +static int fewest_demerits; +static halfword best_line; +static int actual_looseness; + +static int line_diff; + + +/*:895*//*996:*/ +#line 1625 "htex.ch" + +scaled best_height_plus_depth; + +#line 18940 "btex.w" + +/*:996*//*1005:*/ +#line 1655 "htex.ch" + +pointer page_tail; +#line 19146 "btex.w" +int page_contents; +scaled page_max_depth; +pointer best_page_break; +int least_page_cost; +scaled best_size; + +/*:1005*//*1007:*/ +#line 1666 "htex.ch" + +scaled page_so_far[8]; +#line 19231 "btex.w" +int insert_penalties; + + +/*:1007*/ +#line 29 "htex.ch" + + +/*97:*/ +#line 164 "htex.ch" + +void overflow(char*s,int n) +{QUIT("Capacity exceeded, sorry [%s=%d=0x%X]\n",s,n,n); +} +#line 2026 "btex.w" + +/*:97*//*98:*/ +#line 188 "htex.ch" + +void confusion(char*s) + +{QUIT("This can't happen(%s)",s);} +#line 2051 "btex.w" + +/*:98*/ +#line 31 "htex.ch" + +#endif +#line 268 "btex.w" + +/*:4*//*103:*/ +#line 197 "htex.ch" + + +static int half(int x) +#line 2115 "btex.w" +{if(odd(x))return(x+1)/2; +else return x/2; +} + +/*:103*//*108:*/ +#line 233 "htex.ch" + +static bool arith_error; +static scaled rem; +#line 2199 "btex.w" + +/*:108*//*110:*/ +#line 241 "htex.ch" + +static scaled x_over_n(scaled x,int n) +#line 2221 "btex.w" +{bool negative; +scaled x_over_n; +negative= false; +if(n==0) +{arith_error= true;x_over_n= 0;rem= x; +} +else{if(n<0) +{negate(x);negate(n);negative= true; +} +if(x>=0) +{x_over_n= x/n;rem= x%n; +} +else{x_over_n= -((-x)/n);rem= -((-x)%n); +} +} +if(negative)negate(rem); +return x_over_n;} + +/*:110*//*111:*/ +#line 248 "htex.ch" + +static scaled xn_over_d(scaled x,int n,int d) +#line 2247 "btex.w" +{bool positive; +nonnegative_integer t,u,v; +scaled xn_over_d; +if(x>=0)positive= true; +else{negate(x);positive= false; +} +t= (x%0100000)*n; +u= (x/0100000)*n+(t/0100000); +v= (u%d)*0100000+(t%0100000); +if(u/d>=0100000)arith_error= true; +else u= 0100000*(u/d)+(v/d); +if(positive) +{xn_over_d= u;rem= v%d; +} +else{xn_over_d= -u;rem= -(v%d); +} +return xn_over_d;} + +/*:111*//*112:*/ +#line 255 "htex.ch" + +halfword badness(scaled t,scaled s) +#line 2286 "btex.w" +{int r; + +if(t==0)return 0; +else if(s<=0)return inf_bad; +else{if(t<=7230584)r= (t*297)/s; +else if(s>=1663497)r= t/(s/297); +else r= t; +if(r> 1290)return inf_bad; +else return(r*r*r+0400000)/01000000; +} +} + +/*:112*//*125:*/ +#line 299 "htex.ch" + +static pointer get_avail(void) +#line 2581 "btex.w" +{pointer p; +p= avail; +if(p!=null)avail= link(avail); +#line 311 "htex.ch" +else{decr(hi_mem_min);p= hi_mem_min; +if(hi_mem_min<=lo_mem_max) +{ +#line 2590 "btex.w" +overflow("main memory size",mem_max+1-mem_min); + + +} +} +link(p)= null; +#ifdef STAT +incr(dyn_used); +#endif + +return p; +} + +/*:125*//*128:*/ +#line 320 "htex.ch" + +static void flush_list(pointer p) + +#line 2631 "btex.w" +{pointer q,r; +if(p!=null) +{r= p; +do{q= r;r= link(r); +#ifdef STAT +decr(dyn_used); +#endif +}while(!(r==null)); +link(q)= avail;avail= p; +} +} + +/*:128*//*130:*/ +#line 336 "htex.ch" + +pointer get_node(int s) +#line 2677 "btex.w" +{ +pointer p; +pointer q; +int r; +int t; +restart:p= rover; +do{/*132:*/ +#line 2726 "btex.w" + +q= p+node_size(p); + +while(is_empty(q)) +{t= rlink(q); +if(q==rover)rover= t; +llink(t)= llink(q);rlink(llink(q))= t; +q= q+node_size(q); +} +r= q-s; +if(r> p+1)/*133:*/ +#line 2741 "btex.w" + +{node_size(p)= r-p; + +rover= p; +goto found; +} + +/*:133*/ +#line 2736 "btex.w" +; +if(r==p)if(rlink(p)!=p) +/*134:*/ +#line 2750 "btex.w" + +{rover= rlink(p);t= llink(p); +llink(rover)= t;rlink(t)= rover; +goto found; +} + +/*:134*/ +#line 2738 "btex.w" +; +node_size(p)= q-p + +/*:132*/ +#line 2684 "btex.w" +; + +p= rlink(p); +}while(!(p==rover)); +if(s==010000000000) +{return max_halfword; +} +if(lo_mem_max+2=1998)t= lo_mem_max+1000; +else t= lo_mem_max+1+(hi_mem_min-lo_mem_max)/2; + +p= llink(rover);q= lo_mem_max;rlink(p)= q;llink(rover)= q; +if(t> mem_bot+max_halfword)t= mem_bot+max_halfword; +rlink(q)= rover;llink(q)= p;link(q)= empty_flag;node_size(q)= t-lo_mem_max; +lo_mem_max= t;link(lo_mem_max)= null;info(lo_mem_max)= null; +rover= q;goto restart; +} + +/*:131*/ +#line 2692 "btex.w" +; +overflow("main memory size",mem_max+1-mem_min); + + +found:link(r)= null; +#ifdef STAT +var_used= var_used+s; +#endif + +#line 343 "htex.ch" +leak_in(r,s); +return r; +#line 2702 "btex.w" +} + +/*:130*//*135:*/ +#line 352 "htex.ch" + +static void free_node(pointer p,halfword s) + +{pointer q; +leak_out(p,s); +store_map(p,0,0); +#line 2764 "btex.w" +node_size(p)= s;link(p)= empty_flag; +q= llink(rover);llink(p)= q;rlink(p)= rover; +llink(rover)= p;rlink(q)= p; +#ifdef STAT +var_used= var_used-s; +#endif + +} + +/*:135*//*141:*/ +#line 369 "htex.ch" + +pointer new_null_box(void) +#line 2910 "btex.w" +{pointer p; +p= get_node(box_node_size);type(p)= hlist_node; +subtype(p)= min_quarterword; +width(p)= 0;depth(p)= 0;height(p)= 0;shift_amount(p)= 0;list_ptr(p)= null; +glue_sign(p)= normal;glue_order(p)= normal;set_glue_ratio_zero(glue_set(p)); +return p; +} + +/*:141*//*144:*/ +#line 376 "htex.ch" + +pointer new_rule(void) +#line 2940 "btex.w" +{pointer p; +p= get_node(rule_node_size);type(p)= rule_node; +subtype(p)= 0; +width(p)= null_flag;depth(p)= null_flag;height(p)= null_flag; +return p; +} + +/*:144*//*149:*/ +#line 383 "htex.ch" + +pointer new_ligature(quarterword f,quarterword c,pointer q) +#line 3009 "btex.w" +{pointer p; +p= get_node(small_node_size);type(p)= ligature_node; +font(lig_char(p))= f;character(lig_char(p))= c;lig_ptr(p)= q; +subtype(p)= 0;return p; +} + +#line 3020 "btex.w" + +/*:149*//*150:*/ +#line 408 "htex.ch" + +pointer new_disc(void) +#line 3044 "btex.w" +{pointer p; +p= get_node(small_node_size);type(p)= disc_node; +#line 415 "htex.ch" +subtype(p)= 0;pre_break(p)= null;post_break(p)= null; +#line 3047 "btex.w" +return p; +} + +/*:150*//*152:*/ +#line 421 "htex.ch" + +pointer new_math(scaled w,small_number s) +#line 3078 "btex.w" +{pointer p; +p= get_node(small_node_size);type(p)= math_node; +subtype(p)= s;width(p)= w;return p; +} + +/*:152*//*156:*/ +#line 428 "htex.ch" + +pointer new_spec(pointer p) +#line 3160 "btex.w" +{pointer q; +q= get_node(glue_spec_size); +mem[q]= mem[p];glue_ref_count(q)= null; +width(q)= width(p);stretch(q)= stretch(p);shrink(q)= shrink(p); +return q; +} + +/*:156*//*158:*/ +#line 435 "htex.ch" + +pointer new_glue(pointer q) +#line 3186 "btex.w" +{pointer p; +p= get_node(small_node_size);type(p)= glue_node;subtype(p)= normal; +leader_ptr(p)= null;glue_ptr(p)= q;incr(glue_ref_count(q)); +return p; +} + +/*:158*//*161:*/ +#line 442 "htex.ch" + +pointer new_kern(scaled w) +#line 3224 "btex.w" +{pointer p; +p= get_node(small_node_size);type(p)= kern_node; +subtype(p)= normal; +width(p)= w; +return p; +} + +/*:161*//*163:*/ +#line 449 "htex.ch" + +pointer new_penalty(int m) +#line 3247 "btex.w" +{pointer p; +p= get_node(small_node_size);type(p)= penalty_node; +subtype(p)= 0; +penalty(p)= m;return p; +} + +/*:163*//*169:*/ +#line 469 "htex.ch" + +void mem_init(void) +{int k; +/*170:*/ +#line 475 "htex.ch" + +#line 3331 "btex.w" +for(k= mem_bot+1;k<=lo_mem_stat_max;k++)mem[k].sc= 0; + + +k= mem_bot;while(k<=lo_mem_stat_max) + +{glue_ref_count(k)= null+1; +stretch_order(k)= normal;shrink_order(k)= normal; +k= k+glue_spec_size; +} +#line 3345 "btex.w" +rover= lo_mem_stat_max+1; +link(rover)= empty_flag; +node_size(rover)= 1000; +llink(rover)= rover;rlink(rover)= rover; +lo_mem_max= rover+1000;link(lo_mem_max)= null;info(lo_mem_max)= null; +for(k= hi_mem_stat_min;k<=mem_top;k++) +mem[k]= mem[lo_mem_max]; +/*804:*/ +#line 15568 "btex.w" + +info(omit_template)= end_template_token; + +/*:804*//*811:*/ +#line 15675 "btex.w" + +link(end_span)= max_quarterword+1;info(end_span)= null; + +/*:811*//*835:*/ +#line 16136 "btex.w" + +type(last_active)= hyphenated;line_number(last_active)= max_halfword; +subtype(last_active)= 0; + +/*:835*//*1006:*/ +#line 19197 "btex.w" + +subtype(page_ins_head)= qi(255); +type(page_ins_head)= split_up;link(page_ins_head)= page_ins_head; + +/*:1006*//*1013:*/ +#line 19354 "btex.w" + +type(page_head)= glue_node;subtype(page_head)= normal; + +/*:1013*/ +#line 3352 "btex.w" +; +#line 490 "htex.ch" +avail= null; +#line 3354 "btex.w" +hi_mem_min= hi_mem_stat_min; +var_used= lo_mem_stat_max+1-mem_bot;dyn_used= hi_mem_stat_usage; + + +/*:170*/ +#line 472 "htex.ch" + +} + +/*:169*//*209:*/ +#line 642 "htex.ch" + +static void delete_token_ref(pointer p) + +#line 3888 "btex.w" +{if(token_ref_count(p)==null)flush_list(p); +else decr(token_ref_count(p)); +} + +/*:209*//*210:*/ +#line 651 "htex.ch" + +void delete_glue_ref(pointer p) +fast_delete_glue_ref(p) +static void delete_xdimen_ref(pointer p) +{if(xdimen_ref_count(p)==null)free_node(p,xdimen_node_size); +else decr(xdimen_ref_count(p)); +} +#line 3902 "btex.w" + +/*:210*//*211:*/ +#line 663 "htex.ch" + +void flush_node_list(pointer p) +#line 3909 "btex.w" +{ +pointer q; +while(p!=null) + +{q= link(p); +if(is_char_node(p))free_avail(p) +else{switch(type(p)){ +case hlist_node:case vlist_node:case unset_node:{flush_node_list(list_ptr(p)); +free_node(p,box_node_size);goto done; +} +case rule_node:{free_node(p,rule_node_size);goto done; +} +case ins_node:{flush_node_list(ins_ptr(p)); +delete_glue_ref(split_top_ptr(p)); +free_node(p,ins_node_size);goto done; +} +case whatsit_node:/*1387:*/ +#line 24761 "btex.w" + +{switch(subtype(p)){ +#line 2512 "htex.ch" +case close_node:case language_node:free_node(p,small_node_size);break; +case par_node: +if(par_type(p)==glue_type)fast_delete_glue_ref(par_value(p).i); +free_node(p,par_node_size);break; +case graf_node: +delete_xdimen_ref(graf_extent(p)); +flush_node_list(graf_params(p)); +flush_node_list(graf_list(p)); +free_node(p,graf_node_size);break; +case disp_node: +flush_node_list(display_eqno(p)); +flush_node_list(display_formula(p)); +flush_node_list(display_params(p)); +free_node(p,disp_node_size);break; +case baseline_node: +free_node(p,baseline_node_size);break; +case hpack_node:case vpack_node: +delete_xdimen_ref(pack_extent(p)); +flush_node_list(list_ptr(p)); +free_node(p,pack_node_size);break; +case hset_node:case vset_node: +delete_xdimen_ref(set_extent(p)); +flush_node_list(list_ptr(p)); +free_node(p,set_node_size);break; +case image_node: +free_node(p,image_node_size);break; +case align_node: +delete_xdimen_ref(align_extent(p)); +flush_node_list(align_preamble(p)); +flush_node_list(align_list(p)); +free_node(p,align_node_size);break; +case setpage_node: +delete_glue_ref(setpage_topskip(p)); +delete_xdimen_ref(setpage_height(p)); +delete_xdimen_ref(setpage_width(p)); +flush_node_list(setpage_list(p)); +flush_node_list(setpage_streams(p)); +free_node(p,setpage_node_size);break; +case setstream_node: +delete_xdimen_ref(setstream_max(p)); +delete_xdimen_ref(setstream_width(p)); +delete_glue_ref(setstream_topskip(p)); +delete_glue_ref(setstream_height(p)); +flush_node_list(setstream_before(p)); +flush_node_list(setstream_after(p)); +free_node(p,setstream_node_size);break; +case ignore_node: +flush_node_list(ignore_list(p)); +free_node(p,ignore_node_size);break; +case start_link_node: +if(label_has_name(p))delete_token_ref(label_ptr(p)); +free_node(p,link_node_size);break; +case end_link_node: +free_node(p,link_node_size);break; +case label_node: +if(label_has_name(p))delete_token_ref(label_ptr(p)); +free_node(p,label_node_size);break; +case outline_node: +if(label_has_name(p))delete_token_ref(label_ptr(p)); +flush_node_list(outline_ptr(p)); +free_node(p,outline_node_size);break; +case stream_node: +free_node(p,stream_node_size);break; +case xdimen_node: +free_node(p,xdimen_node_size); +#line 24768 "btex.w" +default:confusion("ext3"); + +} +goto done; +} + +#line 2582 "htex.ch" +/*:1387*/ +#line 3925 "btex.w" + +case glue_node:{fast_delete_glue_ref(glue_ptr(p)); +if(leader_ptr(p)!=null)flush_node_list(leader_ptr(p)); +}break; +case kern_node:case math_node:case penalty_node:do_nothing;break; +case ligature_node:flush_node_list(lig_ptr(p));break; +#line 3932 "btex.w" +case disc_node:{flush_node_list(pre_break(p)); +flush_node_list(post_break(p)); +}break; +case adjust_node:flush_node_list(adjust_ptr(p));break; +#line 676 "htex.ch" +default:QUIT("Confusion while flushing node list"); +#line 3938 "btex.w" + +} +free_node(p,small_node_size); +done:;} +p= q; +} +} + +/*:211*//*213:*/ +#line 690 "htex.ch" + +pointer copy_node_list(pointer p) + +#line 3972 "btex.w" +{pointer h; +pointer q; +pointer r; +int words; +h= get_avail();q= h; +while(p!=null) +{/*214:*/ +#line 3985 "btex.w" + +words= 1; +if(is_char_node(p))r= get_avail(); +else/*215:*/ +#line 3994 "btex.w" + +switch(type(p)){ +case hlist_node:case vlist_node:case unset_node:{r= get_node(box_node_size); +mem[r+6]= mem[p+6];mem[r+5]= mem[p+5]; +list_ptr(r)= copy_node_list(list_ptr(p)); +words= 5; +}break; +case rule_node:{r= get_node(rule_node_size);words= rule_node_size; +}break; +case ins_node:{r= get_node(ins_node_size);mem[r+4]= mem[p+4]; +add_glue_ref(split_top_ptr(p)); +ins_ptr(r)= copy_node_list(ins_ptr(p)); +words= ins_node_size-1; +}break; +case whatsit_node:/*1386:*/ +#line 24747 "btex.w" + +switch(subtype(p)){ +case open_node:{r= get_node(open_node_size);words= open_node_size; +}break; +case write_node:case special_node:{r= get_node(write_node_size); +add_token_ref(write_tokens(p));words= write_node_size; +}break; +case close_node:case language_node:{r= get_node(small_node_size); +words= small_node_size; +}break; +#line 2398 "htex.ch" +case par_node: +{r= get_node(par_node_size); +if(par_type(p)==glue_type)add_glue_ref(par_value(p).i); +words= par_node_size; +}break; +case graf_node: +{r= get_node(graf_node_size); +add_xdimen_ref(graf_extent(p)); +graf_params(r)= copy_node_list(graf_params(p)); +graf_list(r)= copy_node_list(graf_list(p)); +words= graf_node_size-1; +}break; +case disp_node: +{r= get_node(disp_node_size); +display_left(r)= display_left(p); +display_no_bs(r)= display_no_bs(p); +display_eqno(r)= copy_node_list(display_eqno(p)); +display_formula(r)= copy_node_list(display_formula(p)); +display_params(r)= copy_node_list(display_params(p)); +words= disp_node_size-2; +}break; +case baseline_node: +{r= get_node(baseline_node_size); +words= baseline_node_size; +}break; +case hpack_node:case vpack_node: +{r= get_node(pack_node_size); +pack_m(r)= pack_m(p); +list_ptr(r)= copy_node_list(list_ptr(p)); +add_xdimen_ref(pack_extent(p)); +pack_limit(r)= pack_limit(p); +words= pack_node_size-3; +}break; +case hset_node:case vset_node: +{r= get_node(set_node_size); +mem[r+8]= mem[p+8];mem[r+7]= mem[p+7];mem[r+6]= mem[p+6];mem[r+5]= mem[p+5]; +add_xdimen_ref(set_extent(p)); +list_ptr(r)= copy_node_list(list_ptr(p)); +words= 5; +}break; +case image_node: +r= get_node(image_node_size); +words= image_node_size; +break; +case align_node: +{r= get_node(align_node_size); +align_preamble(r)= copy_node_list(align_preamble(p)); +align_list(r)= copy_node_list(align_list(p)); +add_xdimen_ref(align_extent(p)); +words= align_node_size-1; +}break; +case setpage_node: +{r= get_node(setpage_node_size); +add_glue_ref(setpage_topskip(p)); +add_xdimen_ref(setpage_height(p)); +add_xdimen_ref(setpage_width(p)); +setpage_list(r)= copy_node_list(setpage_list(p)); +setpage_streams(r)= copy_node_list(setpage_streams(p)); +words= setpage_node_size-1; +}break; +case setstream_node: +{r= get_node(setstream_node_size); +add_xdimen_ref(setstream_max(p)); +add_xdimen_ref(setstream_width(p)); +add_glue_ref(setstream_topskip(p)); +add_glue_ref(setstream_height(p)); +setstream_before(r)= copy_node_list(setstream_before(p)); +setstream_after(r)= copy_node_list(setstream_after(p)); +words= setstream_node_size-1; +}break; +case ignore_node: +r= get_node(ignore_node_size); +ignore_info(r)= ignore_info(p); +ignore_list(r)= copy_node_list(ignore_list(p)); +words= ignore_node_size-1; +break; +case start_link_node: +r= get_node(link_node_size); +if(label_has_name(p))add_token_ref(label_ptr(p)); +words= link_node_size; +break; +case end_link_node: +r= get_node(link_node_size); +words= link_node_size; +break; +case label_node: +r= get_node(label_node_size); +if(label_has_name(p))add_token_ref(label_ptr(p)); +words= label_node_size; +break; +case outline_node: +r= get_node(outline_node_size); +if(label_has_name(p))add_token_ref(label_ptr(p)); +outline_ptr(r)= copy_node_list(outline_ptr(p)); +words= outline_node_size-1; +break; +case stream_node: +r= get_node(stream_node_size); +words= stream_node_size; +break; +case xdimen_node: +r= get_node(xdimen_node_size); +words= xdimen_node_size; +break; +default:confusion("ext2"); +#line 24758 "btex.w" + +} + +/*:1386*/ +#line 4009 "btex.w" +break; +case glue_node:{r= get_node(small_node_size);add_glue_ref(glue_ptr(p)); +glue_ptr(r)= glue_ptr(p);leader_ptr(r)= copy_node_list(leader_ptr(p)); +}break; +case kern_node:case math_node:case penalty_node:{r= get_node(small_node_size); +words= small_node_size; +}break; +case ligature_node:{r= get_node(small_node_size); +mem[lig_char(r)]= mem[lig_char(p)]; +lig_ptr(r)= copy_node_list(lig_ptr(p)); +}break; +case disc_node:{r= get_node(small_node_size); +pre_break(r)= copy_node_list(pre_break(p)); +post_break(r)= copy_node_list(post_break(p)); +}break; +case mark_node:{r= get_node(small_node_size);add_token_ref(mark_ptr(p)); +words= small_node_size; +}break; +case adjust_node:{r= get_node(small_node_size); +adjust_ptr(r)= copy_node_list(adjust_ptr(p)); +}break; +default:confusion("copying"); + +} + +/*:215*/ +#line 3989 "btex.w" +; +while(words> 0) +{decr(words);mem[r+words]= mem[p+words]; +} + +/*:214*/ +#line 3978 "btex.w" +; +link(q)= r;q= r;p= link(p); +} +link(q)= null;q= link(h);free_avail(h); +return q; +} + +/*:213*//*224:*/ +#line 742 "htex.ch" + + +/*222:*/ +#line 728 "htex.ch" + +static list_state_record nest[nest_size+1]; +int nest_ptr; +static int max_nest_stack; +list_state_record cur_list; +#line 4333 "btex.w" + +/*:222*/ +#line 744 "htex.ch" + + +void list_init(void) +{ +nest_ptr= 0;max_nest_stack= 0; +memset(&cur_list,0,sizeof(cur_list)); +mode= vmode;head= contrib_head;tail= contrib_head; +prev_height= prev_depth= ignore_depth; +} +/*:224*//*226:*/ +#line 761 "htex.ch" + +void push_nest(void) +#line 4359 "btex.w" +{if(nest_ptr> max_nest_stack) +{max_nest_stack= nest_ptr; +if(nest_ptr==nest_size)overflow("semantic nest size",nest_size); + +} +nest[nest_ptr]= cur_list; +#line 768 "htex.ch" +incr(nest_ptr);head= get_avail();tail= head;prev_graf= 0; +cur_list.bs_pos= NULL;cur_bs= baseline_skip;cur_ls= line_skip;cur_lsl= line_skip_limit; +#line 4366 "btex.w" +} + +/*:226*//*227:*/ +#line 775 "htex.ch" + +void pop_nest(void) +#line 4374 "btex.w" +{free_avail(head);decr(nest_ptr);cur_list= nest[nest_ptr]; +} + +/*:227*//*560:*/ +#line 952 "htex.ch" + +memory_word font_info[font_mem_size+1]; + +static font_index fmem_ptr= 0; + +void hclear_fonts(void) +{fmem_ptr= 0; +} +#line 10740 "btex.w" +static internal_font_number font_ptr; +static four_quarters font_check0[font_max-font_base+1],*const font_check= font_check0-font_base; +scaled font_size0[font_max-font_base+1],*const font_size= font_size0-font_base; +static scaled font_dsize0[font_max-font_base+1],*const font_dsize= font_dsize0-font_base; +static font_index font_params0[font_max-font_base+1],*const font_params= font_params0-font_base; + +#line 966 "htex.ch" +char*font_name0[font_max-font_base+1],**const font_name= font_name0-font_base; +#line 10748 "btex.w" +static eight_bits font_bc0[font_max-font_base+1],*const font_bc= font_bc0-font_base; + +static eight_bits font_ec0[font_max-font_base+1],*const font_ec= font_ec0-font_base; + +static pointer font_glue0[font_max-font_base+1],*const font_glue= font_glue0-font_base; + +static bool font_used0[font_max-font_base+1],*const font_used= font_used0-font_base; + +static int hyphen_char0[font_max-font_base+1],*const hyphen_char= hyphen_char0-font_base; + +static int skew_char0[font_max-font_base+1],*const skew_char= skew_char0-font_base; + +static font_index bchar_label0[font_max-font_base+1],*const bchar_label= bchar_label0-font_base; + + +static int16_t font_bchar0[font_max-font_base+1],*const font_bchar= font_bchar0-font_base; + +static int16_t font_false_bchar0[font_max-font_base+1],*const font_false_bchar= font_false_bchar0-font_base; + + +/*:560*//*561:*/ +#line 973 "htex.ch" + +int char_base0[font_max-font_base+1],*const char_base= char_base0-font_base; +#line 10779 "btex.w" + +int width_base0[font_max-font_base+1],*const width_base= width_base0-font_base; + +static int height_base0[font_max-font_base+1],*const height_base= height_base0-font_base; + +static int depth_base0[font_max-font_base+1],*const depth_base= depth_base0-font_base; + +static int italic_base0[font_max-font_base+1],*const italic_base= italic_base0-font_base; + +static int lig_kern_base0[font_max-font_base+1],*const lig_kern_base= lig_kern_base0-font_base; + +static int kern_base0[font_max-font_base+1],*const kern_base= kern_base0-font_base; + +static int exten_base0[font_max-font_base+1],*const exten_base= exten_base0-font_base; + +static int param_base0[font_max-font_base+1],*const param_base= param_base0-font_base; + + +/*:561*//*571:*/ +#line 981 "htex.ch" + +void read_font_info(int f,char*nom,scaled s) +#line 10925 "btex.w" +{ +int k; +bool file_opened; +halfword lf,lh,bc,ec,nw,nh,nd,ni,nl,nk,ne,np; + +#line 10932 "btex.w" +eight_bits a,b,c,d; +four_quarters qw;scaled sw; +int bch_label; +int bchar; +scaled z; +int alpha;int beta; + +#line 10940 "btex.w" +/*573:*/ +#line 10976 "btex.w" + +/*574:*/ +#line 1013 "htex.ch" + +file_opened= true +#line 10994 "btex.w" + +/*:574*/ +#line 10977 "btex.w" +; +/*576:*/ +#line 11016 "btex.w" + +{read_sixteen(lf); +fget;read_sixteen(lh); +fget;read_sixteen(bc); +fget;read_sixteen(ec); +if((bc> ec+1)||(ec> 255))abort; +if(bc> 255) +{bc= 1;ec= 0; +} +fget;read_sixteen(nw); +fget;read_sixteen(nh); +fget;read_sixteen(nd); +fget;read_sixteen(ni); +fget;read_sixteen(nl); +fget;read_sixteen(nk); +fget;read_sixteen(ne); +fget;read_sixteen(np); +if(lf!=6+lh+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np)abort; +if((nw==0)||(nh==0)||(nd==0)||(ni==0))abort; +} + +/*:576*/ +#line 10978 "btex.w" +; +/*577:*/ +#line 11043 "btex.w" + +lf= lf-6-lh; +if(np<7)lf= lf+7-np; +if((font_ptr==font_max)||(fmem_ptr+lf> font_mem_size)) +#line 1029 "htex.ch" +QUIT("Not enough room left for font %s\n",nom); +#line 11049 "btex.w" +char_base[f]= fmem_ptr-bc; +width_base[f]= char_base[f]+ec+1; +height_base[f]= width_base[f]+nw; +depth_base[f]= height_base[f]+nh; +italic_base[f]= depth_base[f]+nd; +lig_kern_base[f]= italic_base[f]+ni; +kern_base[f]= lig_kern_base[f]+nl-kern_base_offset; +exten_base[f]= kern_base[f]+kern_base_offset+nk; +param_base[f]= exten_base[f]+ne + +/*:577*/ +#line 10979 "btex.w" +; +/*579:*/ +#line 11072 "btex.w" + +{if(lh<2)abort; +store_four_quarters(font_check[f]); +fget;read_sixteen(z); +fget;z= z*0400+fbyte;fget;z= (z*020)+(fbyte/020); +if(z 2) +{fget;fget;fget;fget;decr(lh); +} +font_dsize[f]= z; +if(s!=-1000) +if(s>=0)z= s; +else z= xn_over_d(z,-s,1000); +font_size[f]= z; +} + +/*:579*/ +#line 10980 "btex.w" +; +/*580:*/ +#line 11088 "btex.w" + +for(k= fmem_ptr;k<=width_base[f]-1;k++) +{store_four_quarters(font_info[k].qqqq); +if((a>=nw)||(b/020>=nh)||(b%020>=nd)|| +(c/4>=ni))abort; +switch(c%4){ +case lig_tag:if(d>=nl)abort;break; +case ext_tag:if(d>=ne)abort;break; +case list_tag:/*581:*/ +#line 11109 "btex.w" + +{check_byte_range(d); +while(d=040000000) +{z= z/2;alpha= alpha+alpha; +} +beta= 256/alpha;alpha= alpha*z; +} + +/*:583*/ +#line 11145 "btex.w" +; +for(k= width_base[f];k<=lig_kern_base[f]-1;k++) +store_scaled(font_info[k].sc); +if(font_info[width_base[f]].sc!=0)abort; +if(font_info[height_base[f]].sc!=0)abort; +if(font_info[depth_base[f]].sc!=0)abort; +if(font_info[italic_base[f]].sc!=0)abort; +} + +/*:582*/ +#line 10982 "btex.w" +; +/*584:*/ +#line 11168 "btex.w" + +bch_label= 077777;bchar= 256; +if(nl> 0) +{for(k= lig_kern_base[f];k<=kern_base[f]+kern_base_offset-1;k++) +{store_four_quarters(font_info[k].qqqq); +if(a> 128) +{if(256*c+d>=nl)abort; +if(a==255)if(k==lig_kern_base[f])bchar= b; +} +else{if(b!=bchar)check_existence(b); +if(c<128)check_existence(d) +else if(256*(c-128)+d>=nk)abort; +if(a<128)if(k-lig_kern_base[f]+a+1>=nl)abort; +} +} +if(a==255)bch_label= 256*c+d; +} +for(k= kern_base[f]+kern_base_offset;k<=exten_base[f]-1;k++) +store_scaled(font_info[k].sc); + +/*:584*/ +#line 10983 "btex.w" +; +/*585:*/ +#line 11188 "btex.w" + +for(k= exten_base[f];k<=param_base[f]-1;k++) +{store_four_quarters(font_info[k].qqqq); +if(a!=0)check_existence(a); +if(b!=0)check_existence(b); +if(c!=0)check_existence(c); +check_existence(d); +} + +/*:585*/ +#line 10984 "btex.w" +; +/*586:*/ +#line 11200 "btex.w" + +{for(k= 1;k<=np;k++) +if(k==1) +{fget;sw= fbyte;if(sw> 127)sw= sw-256; +fget;sw= sw*0400+fbyte;fget;sw= sw*0400+fbyte; +fget;font_info[param_base[f]].sc= +(sw*020)+(fbyte/020); +} +else store_scaled(font_info[param_base[f]+k-1].sc); +#line 1035 "htex.ch" +if(hpos>=hend)abort; +#line 11210 "btex.w" +for(k= np+1;k<=7;k++)font_info[param_base[f]+k-1].sc= 0; +} + +/*:586*/ +#line 10985 "btex.w" +; +/*587:*/ +#line 11220 "btex.w" + +if(np>=7)font_params[f]= np;else font_params[f]= 7; +#line 1041 "htex.ch" +hyphen_char[f]= skew_char[f]= -1; +#line 11223 "btex.w" +if(bch_label=bc) +{qw= char_info(f,bchar); +if(char_exists(qw))font_false_bchar[f]= non_char; +} +font_name[f]= nom; +#line 11233 "btex.w" +font_bc[f]= bc;font_ec[f]= ec;font_glue[f]= null; +adjust(char_base);adjust(width_base);adjust(lig_kern_base); +adjust(kern_base);adjust(exten_base); +decr(param_base[f]); +#line 1052 "htex.ch" +fmem_ptr= fmem_ptr+lf;goto done +#line 11238 "btex.w" + +/*:587*/ +#line 10986 "btex.w" + + +#line 1013 "htex.ch" +/*:573*/ +#line 10942 "btex.w" +; +#line 1001 "htex.ch" +bad_tfm:QUIT("Bad tfm file: %s\n",nom); +done:; +#line 10946 "btex.w" +} + +/*:571*//*593:*/ +#line 1068 "htex.ch" + +pointer new_character(internal_font_number f,eight_bits c) +{pointer p; +#ifdef DEBUG +if(font_bc[f]> c||font_ec[f] h)h= s; +s= char_depth(f,hd);if(s> d)d= s; +p= link(p); +} + +/*:667*/ +#line 12953 "btex.w" +; +if(p!=null) +{switch(type(p)){ +case hlist_node:case vlist_node:case rule_node:case unset_node: +/*666:*/ +#line 12980 "btex.w" + +{x= x+width(p); +if(type(p)>=rule_node)s= 0;else s= shift_amount(p); +if(height(p)-s> h)h= height(p)-s; +if(depth(p)+s> d)d= depth(p)+s; +} + +/*:666*/ +#line 12957 "btex.w" +break; +case ins_node:case mark_node:case adjust_node:if(adjust_tail!=null) +/*668:*/ +#line 13007 "btex.w" + +{while(link(q)!=p)q= link(q); +if(type(p)==adjust_node) +{link(adjust_tail)= adjust_ptr(p); +while(link(adjust_tail)!=null)adjust_tail= link(adjust_tail); +p= link(p);free_node(link(q),small_node_size); +} +else{link(adjust_tail)= p;adjust_tail= p;p= link(p); +} +link(q)= p;p= q; +} + +/*:668*/ +#line 12959 "btex.w" +break; +case whatsit_node:/*1389:*/ +#line 2595 "htex.ch" + +if(subtype(p)==image_node) +{glue_ord o; +if(image_height(p)> h)h= image_height(p); +x= x+image_width(p); +o= image_stretch_order(p);total_stretch[o]= total_stretch[o]+image_stretch(p); +o= image_shrink_order(p);total_shrink[o]= total_shrink[o]+image_shrink(p); +} +#line 24777 "btex.w" + +/*:1389*/ +#line 12960 "btex.w" +;break; +case glue_node:/*669:*/ +#line 13019 "btex.w" + +{g= glue_ptr(p);x= x+width(g); +o= stretch_order(g);total_stretch[o]= total_stretch[o]+stretch(g); +o= shrink_order(g);total_shrink[o]= total_shrink[o]+shrink(g); +if(subtype(p)>=a_leaders) +{g= leader_ptr(p); +if(height(g)> h)h= height(g); +if(depth(g)> d)d= depth(g); +} +} + +/*:669*/ +#line 12961 "btex.w" +break; +case kern_node:case math_node:x= x+width(p);break; +case ligature_node:/*665:*/ +#line 12971 "btex.w" + +{mem[lig_trick]= mem[lig_char(p)];link(lig_trick)= link(p); +p= lig_trick;goto reswitch; +} + +/*:665*/ +#line 12963 "btex.w" + +default:do_nothing; +} +p= link(p); +} +} + + +/*:664*/ +#line 12932 "btex.w" +; +if(adjust_tail!=null)link(adjust_tail)= null; +height(r)= h;depth(r)= d; +/*670:*/ +#line 13033 "btex.w" + +if(m==additional)w= x+w; +width(r)= w;x= w-x; +if(x==0) +{glue_sign(r)= normal;glue_order(r)= normal; +set_glue_ratio_zero(glue_set(r)); +goto end; +} +else if(x> 0)/*671:*/ +#line 13045 "btex.w" + +{/*672:*/ +#line 13059 "btex.w" + +if(total_stretch[filll]!=0)o= filll; +else if(total_stretch[fill]!=0)o= fill; +else if(total_stretch[fil]!=0)o= fil; +else o= normal + +/*:672*/ +#line 13046 "btex.w" +; +glue_order(r)= o;glue_sign(r)= stretching; +if(total_stretch[o]!=0)glue_set(r)= unfloat(x/(double)total_stretch[o]); + +else{glue_sign(r)= normal; +set_glue_ratio_zero(glue_set(r)); +} +#line 13056 "btex.w" +goto end; +} + +/*:671*/ +#line 13042 "btex.w" + +else/*677:*/ +#line 13104 "btex.w" + +{/*678:*/ +#line 13123 "btex.w" + +if(total_shrink[filll]!=0)o= filll; +else if(total_shrink[fill]!=0)o= fill; +else if(total_shrink[fil]!=0)o= fil; +else o= normal + +/*:678*/ +#line 13105 "btex.w" +; +glue_order(r)= o;glue_sign(r)= shrinking; +if(total_shrink[o]!=0)glue_set(r)= unfloat((-x)/(double)total_shrink[o]); + +else{glue_sign(r)= normal; +set_glue_ratio_zero(glue_set(r)); +} +if((total_shrink[o]<-x)&&(o==normal)&&(list_ptr(r)!=null)) +#line 1132 "htex.ch" +set_glue_ratio_one(glue_set(r)); +#line 13120 "btex.w" +goto end; +} + +/*:677*/ +#line 13043 "btex.w" + + +/*:670*/ +#line 12936 "btex.w" +; +#line 12939 "btex.w" +end:return r; +} + +/*:662*//*682:*/ +#line 1142 "htex.ch" + +pointer vpackage(pointer p,scaled h,small_number m,scaled l) +#line 13162 "btex.w" +{ +pointer r; +scaled w,d,x; +scaled s; +pointer g; +glue_ord o; +#line 1149 "htex.ch" +r= get_node(box_node_size);type(r)= vlist_node; +#line 13169 "btex.w" +subtype(r)= min_quarterword;shift_amount(r)= 0; +list_ptr(r)= p; +w= 0;/*663:*/ +#line 12942 "btex.w" + +d= 0;x= 0; +total_stretch[normal]= 0;total_shrink[normal]= 0; +total_stretch[fil]= 0;total_shrink[fil]= 0; +total_stretch[fill]= 0;total_shrink[fill]= 0; +total_stretch[filll]= 0;total_shrink[filll]= 0 + +/*:663*/ +#line 13171 "btex.w" +; +while(p!=null)/*683:*/ +#line 13186 "btex.w" + +{if(is_char_node(p))confusion("vpack"); + +else switch(type(p)){ +case hlist_node:case vlist_node:case rule_node:case unset_node: +/*684:*/ +#line 13201 "btex.w" + +{x= x+d+height(p);d= depth(p); +if(type(p)>=rule_node)s= 0;else s= shift_amount(p); +if(width(p)+s> w)w= width(p)+s; +} + +/*:684*/ +#line 13191 "btex.w" +break; +case whatsit_node:/*1388:*/ +#line 2582 "htex.ch" + +if(subtype(p)==image_node) +{glue_ord o; +if(image_width(p)> w)w= image_width(p); +x= x+d+image_height(p);d= 0; +o= image_stretch_order(p);total_stretch[o]= total_stretch[o]+image_stretch(p); +o= image_shrink_order(p);total_shrink[o]= total_shrink[o]+image_shrink(p); +} +#line 24775 "btex.w" + +#line 2595 "htex.ch" +/*:1388*/ +#line 13192 "btex.w" +;break; +case glue_node:/*685:*/ +#line 13207 "btex.w" + +{x= x+d;d= 0; +g= glue_ptr(p);x= x+width(g); +o= stretch_order(g);total_stretch[o]= total_stretch[o]+stretch(g); +o= shrink_order(g);total_shrink[o]= total_shrink[o]+shrink(g); +if(subtype(p)>=a_leaders) +{g= leader_ptr(p); +if(width(g)> w)w= width(g); +} +} + +/*:685*/ +#line 13193 "btex.w" +break; +case kern_node:{x= x+d+width(p);d= 0; +}break; +default:do_nothing; +} +p= link(p); +} + +/*:683*/ +#line 13173 "btex.w" +; +width(r)= w; +if(d> l) +{x= x+d-l;depth(r)= l; +} +else depth(r)= d; +/*686:*/ +#line 13221 "btex.w" + +if(m==additional)h= x+h; +height(r)= h;x= h-x; +if(x==0) +{glue_sign(r)= normal;glue_order(r)= normal; +set_glue_ratio_zero(glue_set(r)); +goto end; +} +else if(x> 0)/*687:*/ +#line 13233 "btex.w" + +{/*672:*/ +#line 13059 "btex.w" + +if(total_stretch[filll]!=0)o= filll; +else if(total_stretch[fill]!=0)o= fill; +else if(total_stretch[fil]!=0)o= fil; +else o= normal + +/*:672*/ +#line 13234 "btex.w" +; +glue_order(r)= o;glue_sign(r)= stretching; +if(total_stretch[o]!=0)glue_set(r)= unfloat(x/(double)total_stretch[o]); + +else{glue_sign(r)= normal; +set_glue_ratio_zero(glue_set(r)); +} +#line 13244 "btex.w" +goto end; +} + +/*:687*/ +#line 13230 "btex.w" + +else/*690:*/ +#line 13272 "btex.w" + +{/*678:*/ +#line 13123 "btex.w" + +if(total_shrink[filll]!=0)o= filll; +else if(total_shrink[fill]!=0)o= fill; +else if(total_shrink[fil]!=0)o= fil; +else o= normal + +/*:678*/ +#line 13273 "btex.w" +; +glue_order(r)= o;glue_sign(r)= shrinking; +if(total_shrink[o]!=0)glue_set(r)= unfloat((-x)/(double)total_shrink[o]); + +else{glue_sign(r)= normal; +set_glue_ratio_zero(glue_set(r)); +} +if((total_shrink[o]<-x)&&(o==normal)&&(list_ptr(r)!=null)) +#line 1174 "htex.ch" +set_glue_ratio_one(glue_set(r)); +#line 13288 "btex.w" +goto end; +} + +/*:690*/ +#line 13231 "btex.w" + + +/*:686*/ +#line 13180 "btex.w" +; +#line 13183 "btex.w" +end:return r; +} + +/*:682*//*830:*/ +#line 1217 "htex.ch" + + +/*693:*/ +#line 1180 "htex.ch" + +extern pointer happend_to_vlist(pointer b); +void append_to_vlist(pointer b,uint32_t offset) +#line 13312 "btex.w" +{scaled d; +pointer p; +if(prev_depth> ignore_depth) +{d= width(baseline_skip)-prev_depth-height(b); +#line 1191 "htex.ch" +if(d=inf_penalty) +if(pi> 0)goto end; +else pi= eject_penalty + +/*:850*/ +#line 16353 "btex.w" +; +no_break_yet= true;prev_r= active;old_l= 0; +do_all_six(copy_to_cur_active); +loop{resume:r= link(prev_r); +/*851:*/ +#line 16402 "btex.w" + + +if(type(r)==delta_node) +{do_all_six(update_width); +prev_prev_r= prev_r;prev_r= r;goto resume; +} + +/*:851*/ +#line 16358 "btex.w" +; +/*855:*/ +#line 16447 "btex.w" + +{l= line_number(r); +if(l> old_l) +{ +if((minimum_demerits unhyphenated)if(cur_p!=null) +/*861:*/ +#line 16544 "btex.w" + +{t= replace_count(cur_p);v= cur_p;s= post_break(cur_p); +while(t> 0) +{decr(t);v= link(v); +/*862:*/ +#line 16562 "btex.w" + +if(is_char_node(v)) +{f= font(v); +break_width[1]= break_width[1]-char_width(f,char_info(f,character(v))); +} +else switch(type(v)){ +case ligature_node:{f= font(lig_char(v)); +break_width[1]= break_width[1]- +char_width(f,char_info(f,character(lig_char(v)))); +}break; +case hlist_node:case vlist_node:case rule_node:case kern_node: +break_width[1]= break_width[1]-width(v);break; +default:confusion("disc1"); + +} + +/*:862*/ +#line 16548 "btex.w" +; +} +while(s!=null) +{/*863:*/ +#line 16578 "btex.w" + +if(is_char_node(s)) +{f= font(s); +break_width[1]= break_width[1]+char_width(f,char_info(f,character(s))); +} +else switch(type(s)){ +case ligature_node:{f= font(lig_char(s)); +break_width[1]= break_width[1]+ +char_width(f,char_info(f,character(lig_char(s)))); +}break; +case hlist_node:case vlist_node:case rule_node:case kern_node: +break_width[1]= break_width[1]+width(s);break; +default:confusion("disc2"); + +} + +/*:863*/ +#line 16551 "btex.w" +; +s= link(s); +} +break_width[1]= break_width[1]+disc_width; +if(post_break(cur_p)==null)s= link(v); + +} + +/*:861*/ +#line 16505 "btex.w" +; +while(s!=null) +{if(is_char_node(s))goto done; +switch(type(s)){ +case glue_node:/*858:*/ +#line 16520 "btex.w" + +{v= glue_ptr(s);break_width[1]= break_width[1]-width(v); +break_width[2+stretch_order(v)]= break_width[2+stretch_order(v)]-stretch(v); +break_width[6]= break_width[6]-shrink(v); +} + +/*:858*/ +#line 16509 "btex.w" +break; +case penalty_node:do_nothing;break; +case math_node:break_width[1]= break_width[1]-width(s);break; +case kern_node:if(subtype(s)!=explicit)goto done; +else break_width[1]= break_width[1]-width(s);break; +default:goto done; +} +s= link(s); +} +done:;} + +/*:857*/ +#line 16466 "btex.w" +; +/*864:*/ +#line 16603 "btex.w" + +if(type(prev_r)==delta_node) +{do_all_six(convert_to_break_width); +} +else if(prev_r==active) +{do_all_six(store_break_width); +} +else{q= get_node(delta_node_size);link(q)= r;type(q)= delta_node; +subtype(q)= 0; +do_all_six(new_delta_to_break_width); +link(prev_r)= q;prev_prev_r= prev_r;prev_r= q; +} + +/*:864*/ +#line 16467 "btex.w" +; +if(abs(adj_demerits)>=awful_bad-minimum_demerits) +minimum_demerits= awful_bad-1; +else minimum_demerits= minimum_demerits+abs(adj_demerits); +for(fit_class= very_loose_fit;fit_class<=tight_fit;fit_class++) +{if(minimal_demerits[fit_class]<=minimum_demerits) +/*866:*/ +#line 16633 "btex.w" + +{q= get_node(passive_node_size); +link(q)= passive;passive= q;cur_break(q)= cur_p; +#ifdef STAT +incr(pass_number);serial(q)= pass_number; +#endif + +prev_break(q)= best_place[fit_class]; +q= get_node(active_node_size);break_node(q)= passive; +line_number(q)= best_pl_line[fit_class]+1; +fitness(q)= fit_class;type(q)= break_type; +total_demerits(q)= minimal_demerits[fit_class]; +link(q)= r;link(prev_r)= q;prev_r= q; +#ifdef STAT +if(tracing_paragraphs> 0) +/*867:*/ +#line 16653 "btex.w" + +{print_nl("@@");print_int(serial(passive)); + +print(": line ");print_int(line_number(q)-1); +print_char('.');print_int(fit_class); +if(break_type==hyphenated)print_char('-'); +print(" t=");print_int(total_demerits(q)); +print(" -> @@"); +if(prev_break(passive)==null)print_char('0'); +else print_int(serial(prev_break(passive))); +} + +/*:867*/ +#line 16648 "btex.w" +; +#endif + +} + +/*:866*/ +#line 16473 "btex.w" +; +minimal_demerits[fit_class]= awful_bad; +} +minimum_demerits= awful_bad; +/*865:*/ +#line 16622 "btex.w" + +if(r!=last_active) +{q= get_node(delta_node_size);link(q)= r;type(q)= delta_node; +subtype(q)= 0; +do_all_six(new_delta_from_break_width); +link(prev_r)= q;prev_prev_r= prev_r;prev_r= q; +} + +/*:865*/ +#line 16477 "btex.w" +; +} + +/*:856*/ +#line 16453 "btex.w" +; +if(r==last_active)goto end; +/*872:*/ +#line 16729 "btex.w" + +if(l> easy_line) +{line_width= second_width;old_l= max_halfword-1; +} +else{old_l= l; +if(l> last_special_line)line_width= second_width; +else if(par_shape_ptr==null)line_width= first_width; +else line_width= mem[par_shape_ptr+2*l].sc; +} + +/*:872*/ +#line 16455 "btex.w" +; +} +} + +/*:855*/ +#line 16361 "btex.w" +; +/*873:*/ +#line 16749 "btex.w" + +{artificial_demerits= false; + +shortfall= line_width-cur_active_width[1]; +if(shortfall> 0) +/*874:*/ +#line 16779 "btex.w" + +if((cur_active_width[3]!=0)||(cur_active_width[4]!=0)|| +(cur_active_width[5]!=0)) +{b= 0;fit_class= decent_fit; +} +else{if(shortfall> 7230584)if(cur_active_width[2]<1663497) +{b= inf_bad;fit_class= very_loose_fit;goto done1; +} +b= badness(shortfall,cur_active_width[2]); +if(b> 12) +if(b> 99)fit_class= very_loose_fit; +else fit_class= loose_fit; +else fit_class= decent_fit; +done1:; +} + +/*:874*/ +#line 16755 "btex.w" + +else/*875:*/ +#line 16798 "btex.w" + +{if(-shortfall> cur_active_width[6])b= inf_bad+1; +else b= badness(-shortfall,cur_active_width[6]); +if(b> 12)fit_class= tight_fit;else fit_class= decent_fit; +} + +/*:875*/ +#line 16757 "btex.w" +; +if((b> inf_bad)||(pi==eject_penalty)) +/*876:*/ +#line 16813 "btex.w" + +{if(final_pass&&(minimum_demerits==awful_bad)&& +(link(r)==last_active)&& +(prev_r==active)) +artificial_demerits= true; +else if(b> threshold)goto deactivate; +node_r_stays_active= false; +} + +/*:876*/ +#line 16760 "btex.w" + +else{prev_r= r; +if(b> threshold)goto resume; +node_r_stays_active= true; +} +/*877:*/ +#line 16829 "btex.w" + +if(artificial_demerits)d= 0; +else/*881:*/ +#line 16890 "btex.w" + +{d= line_penalty+b; +if(abs(d)>=10000)d= 100000000;else d= d*d; +if(pi!=0) +if(pi> 0)d= d+pi*pi; +else if(pi> eject_penalty)d= d-pi*pi; +if((break_type==hyphenated)&&(type(r)==hyphenated)) +if(cur_p!=null)d= d+double_hyphen_demerits; +else d= d+final_hyphen_demerits; +if(abs(fit_class-fitness(r))> 1)d= d+adj_demerits; +} + +/*:881*/ +#line 16831 "btex.w" +; +#ifdef STAT +if(tracing_paragraphs> 0) +/*878:*/ +#line 16845 "btex.w" + +{if(printed_node!=cur_p) +/*879:*/ +#line 16867 "btex.w" + +{print_nl(""); +if(cur_p==null)short_display(link(printed_node)); +else{save_link= link(cur_p); +link(cur_p)= null;print_nl("");short_display(link(printed_node)); +link(cur_p)= save_link; +} +printed_node= cur_p; +} + +/*:879*/ +#line 16847 "btex.w" +; +print_nl("@"); + +if(cur_p==null)print_esc("par"); +else if(type(cur_p)!=glue_node) +{if(type(cur_p)==penalty_node)print_esc("penalty"); +else if(type(cur_p)==disc_node)print_esc("discretionary"); +else if(type(cur_p)==kern_node)print_esc("kern"); +else print_esc("math"); +} +print(" via @@"); +if(break_node(r)==null)print_char('0'); +else print_int(serial(break_node(r))); +print(" b="); +if(b> inf_bad)print_char('*');else print_int(b); + +print(" p=");print_int(pi);print(" d="); +if(artificial_demerits)print_char('*');else print_int(d); +} + +/*:878*/ +#line 16834 "btex.w" +; +#endif + +d= d+total_demerits(r); + +if(d<=minimal_demerits[fit_class]) +{minimal_demerits[fit_class]= d; +best_place[fit_class]= break_node(r);best_pl_line[fit_class]= l; +if(d 0) +{decr(t);printed_node= link(printed_node); +} +} + +/*:880*/ +#line 16368 "btex.w" +; +#endif + +} + +/*:848*//*900:*/ +#line 17262 "btex.w" + +static void post_line_break(int final_widow_penalty) +{ +pointer q,r,s; +bool disc_break; +#line 1437 "htex.ch" +bool post_disc_break; +bool first_line= true; +uint32_t line_offset,next_offset; +#line 17268 "btex.w" +scaled cur_width; +scaled cur_indent; +quarterword t; +int pen; +halfword cur_line; +/*901:*/ +#line 17293 "btex.w" + +q= break_node(best_bet);cur_p= null; +do{r= q;q= prev_break(q);next_break(r)= cur_p;cur_p= r; +}while(!(q==null)) + +/*:901*/ +#line 17273 "btex.w" +; +cur_line= prev_graf+1; +#line 1446 "htex.ch" +next_offset= hposition(link(temp_head)); +if(next_offset> node_pos) +next_offset= next_offset-node_pos; +else +next_offset= 0; +do{ +line_offset= next_offset; +{pointer q= cur_break(cur_p); +if(q==null) +next_offset= (hstart-hpos); +else +next_offset= hposition(q); +if(next_offset> node_pos) +next_offset= next_offset-node_pos; +else +next_offset= 0; +} +/*903:*/ +#line 17330 "btex.w" + +/*904:*/ +#line 17342 "btex.w" + +q= cur_break(cur_p);disc_break= false;post_disc_break= false; +if(q!=null) +if(type(q)==glue_node) +{delete_glue_ref(glue_ptr(q)); +glue_ptr(q)= right_skip; +subtype(q)= right_skip_code+1;add_glue_ref(right_skip); +goto done; +} +else{if(type(q)==disc_node) +/*905:*/ +#line 1476 "htex.ch" + +{pointer pre_q= pre_break(q); +pointer post_q= post_break(q); +t= replace_count(q); +type(q)= whatsit_node; +subtype(q)= ignore_node; +ignore_info(q)= 1; +/*906:*/ +#line 1508 "htex.ch" + +if(t==0){ignore_list(q)= null;r= link(q);} +else{r= q; +while(t> 1) +{r= link(r);decr(t); +} +s= link(r); +r= link(s);link(s)= null; +ignore_list(q)= link(q); +} +#line 17379 "btex.w" + +/*:906*/ +#line 1483 "htex.ch" +; +s= get_node(ignore_node_size); +type(s)= whatsit_node; +subtype(s)= ignore_node; +ignore_info(s)= 0; +ignore_list(s)= null; +link(s)= r;r= s; +if(post_q!=null)/*907:*/ +#line 1527 "htex.ch" + +{s= post_q; +while(link(s)!=null)s= link(s); +link(s)= r;r= post_q;post_disc_break= true; +} +#line 17388 "btex.w" + +/*:907*/ +#line 1490 "htex.ch" +; +if(pre_q!=null)/*908:*/ +#line 1541 "htex.ch" + +{s= pre_q;link(q)= s; +while(link(s)!=null)s= link(s); +q= s; +} +#line 17397 "btex.w" + +/*:908*/ +#line 1491 "htex.ch" +; +link(q)= r;disc_break= true; +} +#line 17368 "btex.w" + +#line 1508 "htex.ch" +/*:905*/ +#line 17352 "btex.w" + +else if((type(q)==math_node)||(type(q)==kern_node))width(q)= 0; +} +else{q= temp_head; +while(link(q)!=null)q= link(q); +} +/*909:*/ +#line 17398 "btex.w" + +#line 1551 "htex.ch" +r= new_glue(right_skip);link(r)= link(q);link(q)= r;q= r +#line 17400 "btex.w" + +/*:909*/ +#line 17358 "btex.w" +; +done: + +#line 1476 "htex.ch" +/*:904*/ +#line 17332 "btex.w" +; +/*910:*/ +#line 17405 "btex.w" + +r= link(q);link(q)= null;q= link(temp_head);link(temp_head)= r; +if(left_skip!=zero_glue) +#line 1557 "htex.ch" +{r= new_glue(left_skip); +#line 17409 "btex.w" +link(r)= q;q= r; +} + +/*:910*/ +#line 17333 "btex.w" +; +/*912:*/ +#line 17424 "btex.w" + +if(cur_line> last_special_line) +{cur_width= second_width;cur_indent= second_indent; +} +else if(par_shape_ptr==null) +{cur_width= first_width;cur_indent= first_indent; +} +else{cur_width= mem[par_shape_ptr+2*cur_line].sc; +cur_indent= mem[par_shape_ptr+2*cur_line-1].sc; +} +adjust_tail= adjust_head;just_box= hpack(q,cur_width,exactly); +shift_amount(just_box)= cur_indent + +/*:912*/ +#line 17334 "btex.w" +; +/*911:*/ +#line 17412 "btex.w" + +#line 1563 "htex.ch" +if(first_line) +{pointer p= happend_to_vlist(just_box); +uint32_t pos= hposition(p); +store_map(p,pos,line_offset); +first_line= false; +} +else +append_to_vlist(just_box,line_offset); +#line 17414 "btex.w" +if(adjust_head!=adjust_tail) +{link(tail)= link(adjust_head);tail= adjust_tail; +} +adjust_tail= null + +/*:911*/ +#line 17336 "btex.w" +; +/*913:*/ +#line 17444 "btex.w" + +if(cur_line+1!=best_line) +{pen= inter_line_penalty; +if(cur_line==prev_graf+1)pen= pen+club_penalty; +if(cur_line+2==best_line)pen= pen+final_widow_penalty; +if(disc_break)pen= pen+broken_penalty; +if(pen!=0) +#line 1576 "htex.ch" +{r= new_penalty(pen);store_map(r,node_pos,next_offset); +#line 17452 "btex.w" +link(tail)= r;tail= r; +} +} + +/*:913*/ +#line 17337 "btex.w" + + +/*:903*/ +#line 1464 "htex.ch" +; +#line 17277 "btex.w" +incr(cur_line);cur_p= next_break(cur_p); +if(cur_p!=null)if(!post_disc_break) +/*902:*/ +#line 17305 "btex.w" + +{r= temp_head; +loop{q= link(r); +if(q==cur_break(cur_p))goto done1; + + +if(is_char_node(q))goto done1; +if(non_discardable(q))goto done1; +if(type(q)==kern_node)if(subtype(q)!=explicit)goto done1; +r= q; +} +done1:if(r!=temp_head) +{link(r)= null;flush_node_list(link(temp_head)); +link(temp_head)= q; +} +} + +/*:902*/ +#line 17279 "btex.w" +; +}while(!(cur_p==null)); +if((cur_line!=best_line)||(link(temp_head)!=null)) +confusion("line breaking"); + +prev_graf= best_line-1; +} + +/*:900*//*918:*/ +#line 17558 "btex.w" + +#line 1588 "htex.ch" +/*:918*//*966:*/ +#line 18371 "btex.w" + +#ifdef INIT +#line 18374 "btex.w" +#endif + +/*:966*/ +#line 1219 "htex.ch" + + +void line_break(int final_widow_penalty,pointer par_ptr) +{scaled x= cur_list.hs_field; +#line 16034 "btex.w" +/*884:*/ +#line 16966 "btex.w" + +bool auto_breaking; +pointer prev_p; +#line 1366 "htex.ch" +pointer q,r,s; +#line 16970 "btex.w" +internal_font_number f; + +/*:884*//*916:*/ +#line 17539 "btex.w" + +#line 17542 "btex.w" + +/*:916*/ +#line 16034 "btex.w" + +#line 1228 "htex.ch" +set_line_break_params(); +#line 16036 "btex.w" +/*831:*/ +#line 1251 "htex.ch" + +link(temp_head)= par_ptr; +#line 16067 "btex.w" + +/*:831*//*845:*/ +#line 16291 "btex.w" + +no_shrink_error_yet= true; +check_shrinkage(left_skip);check_shrinkage(right_skip); +q= left_skip;r= right_skip;background[1]= width(q)+width(r); +background[2]= 0;background[3]= 0;background[4]= 0;background[5]= 0; +background[2+stretch_order(q)]= stretch(q); +background[2+stretch_order(r)]= background[2+stretch_order(r)]+stretch(r); +background[6]= shrink(q)+shrink(r); + +/*:845*//*854:*/ +#line 16433 "btex.w" + +minimum_demerits= awful_bad; +minimal_demerits[tight_fit]= awful_bad; +minimal_demerits[decent_fit]= awful_bad; +minimal_demerits[loose_fit]= awful_bad; +minimal_demerits[very_loose_fit]= awful_bad; + +/*:854*//*870:*/ +#line 16694 "btex.w" + +if(par_shape_ptr==null) +if(hang_indent==0) +#line 1333 "htex.ch" +{last_special_line= 0;second_width= x; +#line 16698 "btex.w" +second_indent= 0; +} +else/*871:*/ +#line 16708 "btex.w" + +{last_special_line= abs(hang_after); +if(hang_after<0) +#line 1348 "htex.ch" +{first_width= x-abs(hang_indent); +#line 16712 "btex.w" +if(hang_indent>=0)first_indent= hang_indent; +else first_indent= 0; +#line 1357 "htex.ch" +second_width= x;second_indent= 0; +} +else{first_width= x;first_indent= 0; +second_width= x-abs(hang_indent); +#line 16718 "btex.w" +if(hang_indent>=0)second_indent= hang_indent; +else second_indent= 0; +} +} + +/*:871*/ +#line 16700 "btex.w" + +#line 1342 "htex.ch" +else QUIT("parshape not yet implemented"); +#line 16705 "btex.w" +if(looseness==0)easy_line= last_special_line; +else easy_line= max_halfword + +/*:870*/ +#line 16036 "btex.w" +; +/*885:*/ +#line 16976 "btex.w" + +threshold= pretolerance; +if(threshold>=0) +{ +#ifdef STAT +#line 1373 "htex.ch" + if(tracing_paragraphs> 0) +{print_nl("@firstpass");} +#line 16983 "btex.w" +#endif + +second_pass= false;final_pass= false; +} +else{threshold= tolerance;second_pass= true; +final_pass= (emergency_stretch<=0); +#ifdef STAT +#line 16991 "btex.w" +#endif + +} +loop{if(threshold> inf_bad)threshold= inf_bad; +#line 16996 "btex.w" +/*886:*/ +#line 17034 "btex.w" + +q= get_node(active_node_size); +type(q)= unhyphenated;fitness(q)= decent_fit; +link(q)= last_active;break_node(q)= null; +line_number(q)= prev_graf+1;total_demerits(q)= 0;link(active)= q; +do_all_six(store_background); +passive= null;printed_node= temp_head;pass_number= 0; +#line 17042 "btex.w" + +/*:886*/ +#line 16996 "btex.w" +; +cur_p= link(temp_head);auto_breaking= true; +prev_p= cur_p; +while((cur_p!=null)&&(link(active)!=last_active)) +/*888:*/ +#line 17070 "btex.w" + +{if(is_char_node(cur_p)) +/*889:*/ +#line 17104 "btex.w" + +{prev_p= cur_p; +do{f= font(cur_p); +act_width= act_width+char_width(f,char_info(f,character(cur_p))); +cur_p= link(cur_p); +}while(!(!is_char_node(cur_p))); +} + +/*:889*/ +#line 17072 "btex.w" +; +switch(type(cur_p)){ +case hlist_node:case vlist_node:case rule_node:act_width= act_width+width(cur_p);break; +case whatsit_node:/*1391:*/ +#line 24783 "btex.w" + +adv_past(cur_p) + +/*:1391*/ +#line 17075 "btex.w" +break; +case glue_node:{/*890:*/ +#line 17115 "btex.w" + +if(auto_breaking) +{if(is_char_node(prev_p))try_break(0,unhyphenated); +else if(precedes_break(prev_p))try_break(0,unhyphenated); +else if((type(prev_p)==kern_node)&&(subtype(prev_p)!=explicit)) +try_break(0,unhyphenated); +} +check_shrinkage(glue_ptr(cur_p));q= glue_ptr(cur_p); +act_width= act_width+width(q); +active_width[2+stretch_order(q)]= +active_width[2+stretch_order(q)]+stretch(q); +active_width[6]= active_width[6]+shrink(q) + +/*:890*/ +#line 17077 "btex.w" +; +#line 17080 "btex.w" +}break; +case kern_node:if(subtype(cur_p)==explicit)kern_break +else act_width= act_width+width(cur_p);break; +case ligature_node:{f= font(lig_char(cur_p)); +act_width= act_width+char_width(f,char_info(f,character(lig_char(cur_p)))); +}break; +case disc_node:/*891:*/ +#line 17131 "btex.w" + +#line 1416 "htex.ch" +{if(!is_auto_disc(cur_p)||second_pass||final_pass) +{s= pre_break(cur_p);disc_width= 0; +#line 17133 "btex.w" +if(s==null)try_break(ex_hyphen_penalty,hyphenated); +else{do{/*892:*/ +#line 17149 "btex.w" + +if(is_char_node(s)) +{f= font(s); +disc_width= disc_width+char_width(f,char_info(f,character(s))); +} +else switch(type(s)){ +case ligature_node:{f= font(lig_char(s)); +disc_width= disc_width+ +char_width(f,char_info(f,character(lig_char(s)))); +}break; +case hlist_node:case vlist_node:case rule_node:case kern_node: +disc_width= disc_width+width(s);break; +default:confusion("disc3"); + +} + +/*:892*/ +#line 17134 "btex.w" +; +s= link(s); +}while(!(s==null)); +act_width= act_width+disc_width; +try_break(hyphen_penalty,hyphenated); +act_width= act_width-disc_width; +} +#line 1423 "htex.ch" +} +r= replace_count(cur_p);s= link(cur_p); +#line 17142 "btex.w" +while(r> 0) +{/*893:*/ +#line 17165 "btex.w" + +if(is_char_node(s)) +{f= font(s); +act_width= act_width+char_width(f,char_info(f,character(s))); +} +else switch(type(s)){ +case ligature_node:{f= font(lig_char(s)); +act_width= act_width+ +char_width(f,char_info(f,character(lig_char(s)))); +}break; +case hlist_node:case vlist_node:case rule_node:case kern_node: +act_width= act_width+width(s);break; +default:confusion("disc4"); + +} + +/*:893*/ +#line 17143 "btex.w" +; +decr(r);s= link(s); +} +prev_p= cur_p;cur_p= s;goto done5; +} + +/*:891*/ +#line 17086 "btex.w" + +case math_node:{auto_breaking= (subtype(cur_p)==after);kern_break; +}break; +case penalty_node:try_break(penalty(cur_p),unhyphenated);break; +case mark_node:case ins_node:case adjust_node:do_nothing;break; +default:confusion("paragraph"); + +} +prev_p= cur_p;cur_p= link(cur_p); +done5:;} + +/*:888*/ +#line 17002 "btex.w" +; +if(cur_p==null) +/*896:*/ +#line 17200 "btex.w" + +{try_break(eject_penalty,hyphenated); +if(link(active)!=last_active) +{/*897:*/ +#line 17210 "btex.w" + +r= link(active);fewest_demerits= awful_bad; +do{if(type(r)!=delta_node)if(total_demerits(r) actual_looseness)&&(looseness>=line_diff))) +{best_bet= r;actual_looseness= line_diff; +fewest_demerits= total_demerits(r); +} +else if((line_diff==actual_looseness)&& +(total_demerits(r) 0)print_nl("@secondpass"); +#endif +threshold= tolerance;second_pass= true;final_pass= (emergency_stretch<=0); +} +else{ +#ifdef STAT +#line 1391 "htex.ch" + if(tracing_paragraphs> 0) +print_nl("@emergencypass"); +#line 17018 "btex.w" +#endif +background[2]= background[2]+emergency_stretch;final_pass= true; +} +} +done: +#ifdef STAT +#line 17027 "btex.w" +#endif + +/*:885*/ +#line 16037 "btex.w" +; +/*899:*/ +#line 17248 "btex.w" + +post_line_break(final_widow_penalty) + +/*:899*/ +#line 16039 "btex.w" +; +/*887:*/ +#line 17043 "btex.w" + +q= link(active); +while(q!=last_active) +{cur_p= link(q); +if(type(q)==delta_node)free_node(q,delta_node_size); +else free_node(q,active_node_size); +q= cur_p; +} +q= passive; +while(q!=null) +{cur_p= link(q); +free_node(q,passive_node_size); +q= cur_p; +} + +/*:887*/ +#line 16040 "btex.w" +; +#line 1234 "htex.ch" +hrestore_param_list(); +#line 16042 "btex.w" +} + +/*:830*//*992:*/ +#line 1600 "htex.ch" + + +#define ensure_vbox(N) + +static pointer prune_page_top(pointer p) +#line 18869 "btex.w" +{pointer prev_p; +pointer q; +prev_p= temp_head;link(temp_head)= p; +while(p!=null) +switch(type(p)){ +case hlist_node:case vlist_node:case rule_node:/*993:*/ +#line 18887 "btex.w" + +#line 1610 "htex.ch" +{temp_ptr= new_spec(pointer_def[glue_kind][split_top_skip_no]); +q= new_glue(temp_ptr);glue_ref_count(temp_ptr)= null;link(prev_p)= q;link(q)= p; +#line 18889 "btex.w" + +if(width(temp_ptr)> height(p))width(temp_ptr)= width(temp_ptr)-height(p); +else width(temp_ptr)= 0; +p= null; +} + +/*:993*/ +#line 18875 "btex.w" +break; +case whatsit_node:case mark_node:case ins_node:{prev_p= p;p= link(prev_p); +}break; +case glue_node:case kern_node:case penalty_node:{q= p;p= link(q);link(q)= null; +link(prev_p)= p;flush_node_list(q); +}break; +default:confusion("pruning"); + +} +return link(temp_head); +} + +/*:992*//*994:*/ +#line 1617 "htex.ch" + +static pointer vert_break(pointer p,scaled h,scaled d) +#line 18912 "btex.w" + +{ +pointer prev_p; + +pointer q,r; +int pi; +int b; +int least_cost; +pointer best_place; +scaled prev_dp; +small_number t; +prev_p= p; +least_cost= awful_bad;do_all_six(set_height_zero);prev_dp= 0; +loop{/*997:*/ +#line 18945 "btex.w" + +if(p==null)pi= eject_penalty; +else/*998:*/ +#line 18960 "btex.w" + +switch(type(p)){ +case hlist_node:case vlist_node:case rule_node:{ +cur_height= cur_height+prev_dp+height(p);prev_dp= depth(p); +goto not_found; +} +case whatsit_node:/*1394:*/ +#line 24792 "btex.w" + +goto not_found + +/*:1394*/ +#line 18966 "btex.w" +; +case glue_node:if(precedes_break(prev_p))pi= 0; +else goto update_heights;break; +case kern_node:{if(link(p)==null)t= penalty_node; +else t= type(link(p)); +if(t==glue_node)pi= 0;else goto update_heights; +}break; +case penalty_node:pi= penalty(p);break; +case mark_node:case ins_node:goto not_found; +default:confusion("vertbreak"); + +} + +/*:998*/ +#line 18949 "btex.w" +; +/*999:*/ +#line 18981 "btex.w" + +if(pi active_height[6])b= awful_bad; +else b= badness(cur_height-h,active_height[6]) + +/*:1000*/ +#line 18983 "btex.w" +; +if(b kern_node))goto not_found; +update_heights:/*1001:*/ +#line 19007 "btex.w" + +if(type(p)==kern_node)q= p; +else{q= glue_ptr(p); +active_height[2+stretch_order(q)]= +active_height[2+stretch_order(q)]+stretch(q); +active_height[6]= active_height[6]+shrink(q); +#line 1643 "htex.ch" +if((shrink_order(q)!=normal)&&(shrink(q)!=0)) +{ +DBG(DBGTEX,"Infinite glue shrinkage found in box being split"); +r= new_spec(q);shrink_order(r)= normal;delete_glue_ref(q); +glue_ptr(p)= r;q= r; +} +#line 19024 "btex.w" +} +cur_height= cur_height+prev_dp+width(q);prev_dp= 0 + +/*:1001*/ +#line 18954 "btex.w" +; +not_found:if(prev_dp> d) +{cur_height= cur_height+prev_dp-d; +prev_dp= d; +} + +/*:997*/ +#line 18927 "btex.w" +; +prev_p= p;p= link(prev_p); +} +done:return best_place; +} + +/*:994*//*1012:*/ +#line 1673 "htex.ch" + +void freeze_page_specs(small_number s) +#line 19314 "btex.w" +{page_contents= s; +#line 1680 "htex.ch" +page_goal= hvsize;page_max_depth= max_depth; +#line 19316 "btex.w" +page_depth= 0;do_all_six(set_page_so_far_zero); +least_page_cost= awful_bad; +#line 19327 "btex.w" + +} + +/*:1012*//*1020:*/ +#line 1706 "htex.ch" + +bool hbuild_page(void) +#line 19412 "btex.w" +{ +pointer p; +pointer q,r; +int b,c; +int pi; +#line 1715 "htex.ch" +if(link(contrib_head)==null)return false; +#line 19420 "btex.w" +do{resume:p= link(contrib_head); +#line 19422 "btex.w" +/*1023:*/ +#line 19452 "btex.w" + +/*1026:*/ +#line 19480 "btex.w" + +switch(type(p)){ +case hlist_node:case vlist_node:case rule_node:if(page_contents height(p))width(temp_ptr)= width(temp_ptr)-height(p); +else width(temp_ptr)= 0; +link(q)= p;link(contrib_head)= q;goto resume; +} + +/*:1027*/ +#line 19484 "btex.w" + +else/*1028:*/ +#line 19510 "btex.w" + +{page_total= page_total+page_depth+height(p); +page_depth= depth(p); +goto contribute; +} + +/*:1028*/ +#line 19485 "btex.w" +break; +case whatsit_node:/*1393:*/ +#line 24789 "btex.w" + +goto contribute + +/*:1393*/ +#line 19486 "btex.w" +; +case glue_node:if(page_contents page_shrink)b= awful_bad; +else b= badness(page_total-page_goal,page_shrink) + +#line 1796 "htex.ch" +/*:1033*/ +#line 19547 "btex.w" +; +if(b=10000)c= awful_bad; +#line 19557 "btex.w" + +if(c<=least_page_cost) +{best_page_break= p;best_size= page_goal; +least_page_cost= c; +r= link(page_ins_head); +while(r!=page_ins_head) +{best_ins_ptr(r)= last_ins_ptr(r); +r= link(r); +} +} +if((c==awful_bad)||(pi<=eject_penalty)) +#line 1784 "htex.ch" +{hloc_set_next(best_page_break); +if(p==best_page_break)best_page_break= null; +hpack_page(); +hfill_page_template(); +return true; +} +#line 19572 "btex.w" +} + +/*:1031*/ +#line 19459 "btex.w" +; +if((type(p) kern_node))goto contribute; +update_heights:/*1030:*/ +#line 19523 "btex.w" + +if(type(p)==kern_node)q= p; +else{q= glue_ptr(p); +page_so_far[2+stretch_order(q)]= +page_so_far[2+stretch_order(q)]+stretch(q); +page_shrink= page_shrink+shrink(q); +#line 1763 "htex.ch" +if((shrink_order(q)!=normal)&&(shrink(q)!=0)) +{ +DBG(DBGTEX,"Infinite glue shrinkage found on current page"); +r= new_spec(q);shrink_order(r)= normal;fast_delete_glue_ref(q); +glue_ptr(p)= r;q= r; +} +#line 19541 "btex.w" +} +page_total= page_total+page_depth+width(q);page_depth= 0 + +/*:1030*/ +#line 19462 "btex.w" +; +contribute:/*1029:*/ +#line 19516 "btex.w" + +if(page_depth> page_max_depth) +{page_total= +page_total+page_depth-page_max_depth; +page_depth= page_max_depth; +} + +/*:1029*/ +#line 19463 "btex.w" +; +/*1024:*/ +#line 19468 "btex.w" + +link(page_tail)= p;page_tail= p; +link(contrib_head)= link(p);link(p)= null;goto done + +/*:1024*/ +#line 19464 "btex.w" +; +done1:/*1025:*/ +#line 19472 "btex.w" + +link(contrib_head)= link(p);link(p)= null;flush_node_list(p) + +/*:1025*/ +#line 19465 "btex.w" +; +done: + +/*:1023*/ +#line 19424 "btex.w" +; +}while(!(link(contrib_head)==null)); +/*1021:*/ +#line 19431 "btex.w" + +if(nest_ptr==0)tail= contrib_head; +else contrib_tail= contrib_head + +/*:1021*/ +#line 19426 "btex.w" +; +#line 1726 "htex.ch" +return false; +} +#line 19428 "btex.w" + +/*:1020*//*1034:*/ +#line 1796 "htex.ch" + +void happend_insertion(pointer p) +{uint8_t n; +scaled delta,h,w; +pointer q,r; +if(page_contents==empty)freeze_page_specs(inserts_only); +#line 19598 "btex.w" +n= subtype(p);r= page_ins_head; +while(n>=subtype(link(r)))r= link(r); +n= qo(n); +if(subtype(r)!=qi(n)) +/*1035:*/ +#line 19624 "btex.w" + +{q= get_node(page_ins_node_size);link(q)= link(r);link(r)= q;r= q; +subtype(r)= qi(n);type(r)= inserting;ensure_vbox(n); +if(box(n)==null)height(r)= 0; +else height(r)= height(box(n))+depth(box(n)); +best_ins_ptr(r)= null; +q= skip(n); +if(count(n)==1000)h= height(r); +else h= x_over_n(height(r),1000)*count(n); +page_goal= page_goal-h-width(q); +page_so_far[2+stretch_order(q)]= page_so_far[2+stretch_order(q)]+stretch(q); +page_shrink= page_shrink+shrink(q); +#line 1820 "htex.ch" +if((shrink_order(q)!=normal)&&(shrink(q)!=0)) +DBG(DBGTEX,"Infinite glue shrinkage inserted from stream %d",n); +#line 19645 "btex.w" +} + +/*:1035*/ +#line 19603 "btex.w" +; +if(type(r)==split_up)insert_penalties= insert_penalties+float_cost(p); +else{last_ins_ptr(r)= p; +delta= page_goal-page_total-page_depth+page_shrink; + +if(count(n)==1000)h= height(p); +else h= x_over_n(height(p),1000)*count(n); +if(((h<=0)||(h<=delta))&&(height(p)+height(r)<=dimen(n))) +{page_goal= page_goal-h;height(r)= height(r)+height(p); +} +else/*1036:*/ +#line 19657 "btex.w" + +{if(count(n)<=0)w= max_dimen; +else{w= page_goal-page_total-page_depth; +if(count(n)!=1000)w= x_over_n(w,count(n))*1000; +} +if(w> dimen(n)-height(r))w= dimen(n)-height(r); +q= vert_break(ins_ptr(p),w,depth(p)); +height(r)= height(r)+best_height_plus_depth; +#line 19668 "btex.w" + +if(count(n)!=1000) +best_height_plus_depth= x_over_n(best_height_plus_depth,1000)*count(n); +page_goal= page_goal-best_height_plus_depth; +type(r)= split_up;broken_ptr(r)= q;broken_ins(r)= p; +if(q==null)insert_penalties= insert_penalties+eject_penalty; +else if(type(q)==penalty_node)insert_penalties= insert_penalties+penalty(q); +} + +/*:1036*/ +#line 19613 "btex.w" +; +} +#line 19616 "btex.w" +} + +/*:1034*//*1041:*/ +#line 1854 "htex.ch" + +void hpack_page(void) +{ +pointer p,q,r,s; +pointer prev_p; +uint8_t n; +bool wait; +pointer save_split_top_skip; +#if 0 +print_str("\npage_head:\n"); +show_box(link(page_head)); +print_str("\nstream 0:\n"); +show_box(streams[0].p); +print_str("\nstream 1:\n"); +show_box(streams[1].p); +#endif +if(box(0)!=null) +{flush_node_list(box(0));box(0)= null;} +insert_penalties= 0; +save_split_top_skip= split_top_skip; +/*1045:*/ +#line 19821 "btex.w" + +{r= link(page_ins_head); +while(r!=page_ins_head) +{if(best_ins_ptr(r)!=null) +{n= qo(subtype(r));ensure_vbox(n); +if(box(n)==null)box(n)= new_null_box(); +p= box(n)+list_offset; +while(link(p)!=null)p= link(p); +last_ins_ptr(r)= p; +} +r= link(r); +} +} + +/*:1045*/ +#line 1874 "htex.ch" +; +q= hold_head;link(q)= null;prev_p= page_head;p= link(prev_p); +while(p!=best_page_break) +{if(type(p)==ins_node) +{/*1047:*/ +#line 19847 "btex.w" + +{r= link(page_ins_head); +while(subtype(r)!=subtype(p))r= link(r); +if(best_ins_ptr(r)==null)wait= true; +else{wait= false;s= last_ins_ptr(r);link(s)= ins_ptr(p); +if(best_ins_ptr(r)==p) +/*1048:*/ +#line 19863 "btex.w" + +{if(type(r)==split_up) +if((broken_ins(r)==p)&&(broken_ptr(r)!=null)) +{while(link(s)!=broken_ptr(r))s= link(s); +link(s)= null; +split_top_skip= split_top_ptr(p); +ins_ptr(p)= prune_page_top(broken_ptr(r)); +if(ins_ptr(p)!=null) +{temp_ptr= vpack(ins_ptr(p),natural); +height(p)= height(temp_ptr)+depth(temp_ptr); +free_node(temp_ptr,box_node_size);wait= true; +} +} +#line 1912 "htex.ch" +while(link(s)!=null)s= link(s); +best_ins_ptr(r)= null; +#line 19877 "btex.w" +n= qo(subtype(r)); +temp_ptr= list_ptr(box(n)); +free_node(box(n),box_node_size); +#line 1919 "htex.ch" +streams[n].p= temp_ptr; +streams[n].t= s; +#line 19881 "btex.w" +} + +/*:1048*/ +#line 19854 "btex.w" + +else{while(link(s)!=null)s= link(s); +last_ins_ptr(r)= s; +} +} +/*1049:*/ +#line 19883 "btex.w" + +link(prev_p)= link(p);link(p)= null; +if(wait) +{link(q)= p;q= p;incr(insert_penalties); +} +else{delete_glue_ref(split_top_ptr(p)); +free_node(p,ins_node_size); +} +p= prev_p + +/*:1049*/ +#line 19860 "btex.w" +; +} + +/*:1047*/ +#line 1879 "htex.ch" +; +} +prev_p= p;p= link(prev_p); +} +split_top_skip= save_split_top_skip; +/*1044:*/ +#line 19796 "btex.w" + +if(p!=null) +{if(link(contrib_head)==null) +if(nest_ptr==0)tail= page_tail; +else contrib_tail= page_tail; +link(page_tail)= link(contrib_head); +link(contrib_head)= p; +link(prev_p)= null; +} +#line 1901 "htex.ch" +streams[0].p= link(page_head);link(page_head)= null;page_tail= page_head; +streams[0].t= prev_p; +if(q!=hold_head) +{link(q)= link(contrib_head); +link(contrib_head)= link(hold_head); +} +#line 19814 "btex.w" + +/*:1044*/ +#line 1885 "htex.ch" +; +/*1046:*/ +#line 19835 "btex.w" + +r= link(page_ins_head); +while(r!=page_ins_head) +{q= link(r);free_node(r,page_ins_node_size);r= q; +} +link(page_ins_head)= page_ins_head + +/*:1046*/ +#line 1886 "htex.ch" +; +} +#line 19766 "btex.w" + +/*:1041*//*1173:*/ +#line 1936 "htex.ch" + +void hdisplay(pointer p,pointer a,bool l) +{ +scaled x; +uint32_t offset= node_pos-node_pos1; +{scaled w; +scaled l; +scaled s; +pointer p; +pointer q; +internal_font_number f; +int n; +scaled v; +scaled d; + +if(head==tail) +{pop_nest();w= -max_dimen;x= cur_list.hs_field;offset= 0; +} +else{pointer par_ptr= link(head); +pop_nest(); +store_map(par_ptr,node_pos,0); +line_break(display_widow_penalty,par_ptr); +x= cur_list.hs_field; +#line 21742 "btex.w" +/*1174:*/ +#line 21757 "btex.w" + +#line 1976 "htex.ch" +v= shift_amount(just_box)+2*dimen_def[quad_no];w= -max_dimen; +#line 21759 "btex.w" +p= list_ptr(just_box); +while(p!=null) +{/*1175:*/ +#line 21774 "btex.w" + +reswitch:if(is_char_node(p)) +{f= font(p);d= char_width(f,char_info(f,character(p))); +goto found; +} +switch(type(p)){ +case hlist_node:case vlist_node:case rule_node:{d= width(p);goto found; +} +case ligature_node:/*665:*/ +#line 12971 "btex.w" + +{mem[lig_trick]= mem[lig_char(p)];link(lig_trick)= link(p); +p= lig_trick;goto reswitch; +} + +/*:665*/ +#line 21782 "btex.w" + +case kern_node:case math_node:d= width(p);break; +case glue_node:/*1176:*/ +#line 21796 "btex.w" + +{q= glue_ptr(p);d= width(q); +if(glue_sign(just_box)==stretching) +{if((glue_order(just_box)==stretch_order(q))&& +(stretch(q)!=0)) +v= max_dimen; +} +else if(glue_sign(just_box)==shrinking) +{if((glue_order(just_box)==shrink_order(q))&& +(shrink(q)!=0)) +v= max_dimen; +} +if(subtype(p)>=a_leaders)goto found; +} + +/*:1176*/ +#line 21785 "btex.w" +break; +case whatsit_node:/*1390:*/ +#line 24778 "btex.w" +d= 0 + +#line 2609 "htex.ch" +/*:1390*/ +#line 21786 "btex.w" +;break; +default:d= 0; +} + +/*:1175*/ +#line 21762 "btex.w" +; +if(v=0)&&(prev_graf+2> hang_after))|| +(prev_graf+1<-hang_after))) +#line 1982 "htex.ch" +{l= x-abs(hang_indent); +#line 21820 "btex.w" +if(hang_indent> 0)s= hang_indent;else s= 0; +} +#line 1988 "htex.ch" +else{l= x;s= 0; +#line 21823 "btex.w" +} +else{n= info(par_shape_ptr); +if(prev_graf+2>=n)p= par_shape_ptr+2*n; +else p= par_shape_ptr+2*(prev_graf+2); +s= mem[p-1].sc;l= mem[p].sc; +} + +/*:1177*/ +#line 21747 "btex.w" +; +#line 1970 "htex.ch" +pre_display_size= w;display_width= l;display_indent= s; +#line 21755 "btex.w" +} + +/*:1173*//*1228:*/ +#line 2000 "htex.ch" + +{/*1226:*/ +#line 22463 "btex.w" + +pointer b; +scaled w; +scaled z; +scaled e; +scaled q; +scaled d; +scaled s; +small_number g1,g2; +pointer r; +pointer t; + +/*:1226*/ +#line 2001 "htex.ch" + +adjust_tail= adjust_head;b= hpack(p,natural);p= list_ptr(b); +t= adjust_tail;adjust_tail= null; +w= width(b);z= display_width;s= display_indent; +#line 2010 "htex.ch" +if(a==null) +#line 22486 "btex.w" +{e= 0;q= 0; +} +#line 2016 "htex.ch" +else{e= width(a);q= e+math_quad; +#line 22489 "btex.w" +} +if(w+q> z) +/*1230:*/ +#line 22515 "btex.w" + +{if((e!=0)&&((w-total_shrink[normal]+q<=z)|| +(total_shrink[fil]!=0)||(total_shrink[fill]!=0)|| +(total_shrink[filll]!=0))) +{free_node(b,box_node_size); +b= hpack(p,z-q,exactly); +} +else{e= 0; +if(w> z) +{free_node(b,box_node_size); +b= hpack(p,z,exactly); +} +} +w= width(b); +} + +/*:1230*/ +#line 22492 "btex.w" +; +/*1231:*/ +#line 22539 "btex.w" + +d= half(z-w); +if((e> 0)&&(d<2*e)) +{d= half(z-w-e); +if(p!=null)if(!is_char_node(p))if(type(p)==glue_node)d= 0; +} + +/*:1231*/ +#line 22494 "btex.w" +; +/*1232:*/ +#line 22552 "btex.w" + +#line 2043 "htex.ch" +tail_append(new_penalty(pre_display_penalty)); +store_map(tail,node_pos,offset); +if((d+s<=pre_display_size)||l) +{g1= above_display_skip_no;g2= below_display_skip_no; +} +else{g1= above_display_short_skip_no; +g2= below_display_short_skip_no; +} +if(l&&(e==0)) +{shift_amount(a)= s;append_to_vlist(a,offset); +tail_append(new_penalty(inf_penalty));store_map(tail,node_pos,offset); +} +else{tail_append(new_glue(pointer_def[glue_kind][g1]));store_map(tail,node_pos,offset);} +#line 22565 "btex.w" + +/*:1232*/ +#line 22495 "btex.w" +; +/*1233:*/ +#line 22566 "btex.w" + +if(e!=0) +{r= new_kern(z-w-e-d); +if(l) +{link(a)= r;link(r)= b;b= a;d= 0; +} +else{link(b)= r;link(r)= a; +} +b= hpack(b,natural); +} +#line 2061 "htex.ch" +shift_amount(b)= s+d;append_to_vlist(b,offset) +#line 22577 "btex.w" + +/*:1233*/ +#line 22496 "btex.w" +; +/*1234:*/ +#line 22578 "btex.w" + +if((a!=null)&&(e==0)&&!l) +{tail_append(new_penalty(inf_penalty)); +shift_amount(a)= s+z-width(a); +#line 2067 "htex.ch" +append_to_vlist(a,offset); +#line 22583 "btex.w" +g2= 0; +} +if(t!=adjust_head) +{link(tail)= link(adjust_head);tail= t; +} +#line 2074 "htex.ch" +tail_append(new_penalty(post_display_penalty)); +offset= (hpos-hstart)+1-node_pos; +store_map(tail,node_pos,offset); +if(g2> 0){tail_append(new_glue(pointer_def[glue_kind][g2]));store_map(tail,node_pos,offset);} +#line 22590 "btex.w" + +/*:1234*/ +#line 22497 "btex.w" +; +#line 2022 "htex.ch" +prev_graf= prev_graf+3; +cur_list.bs_pos= hpos+node_pos; +push_nest();mode= hmode; +} +} +#line 22499 "btex.w" + +/*:1228*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/htex.h b/Build/source/texk/web2c/hitexdir/hintview/src/htex.h new file mode 100644 index 00000000000..1107e48533b --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/htex.h @@ -0,0 +1,1958 @@ +/*1410:*/ +#line 2624 "htex.ch" + +#define banner "This is TeX, Version 3.141592653 (HINT)" \ + +#define odd(X) ((X) &1) +#define chr(X) ((unsigned char) (X) ) +#define ord(X) ((unsigned int) (X) ) +#define abs(X) ((X) > -(X) ?(X) :-(X) ) +#define round(X) ((int) ((X) >=0.0?floor((X) +0.5) :ceil((X) -0.5) ) ) \ + +#define mem_bot 0 \ + +#define mem_top mem_max \ + \ + +#define font_base 0 \ + +#define hash_size 15000 \ + +#define hash_prime 12721 +#define hyph_size 607 \ + \ + +#define incr(A) A= A+1 +#define decr(A) A= A-1 +#define negate(A) A= -A +#define loop while(true) +#define do_nothing +#define empty 0 \ + +#define text_char unsigned char +#define first_text_char 0 +#define last_text_char 255 \ + +#define null_code 00 +#define carriage_return 015 +#define invalid_code 0177 \ + +#define reset_OK(A) erstat(A) ==0 +#define rewrite_OK(A) erstat(A) ==0 \ + +#define t_open_in term_in.f= stdin +#define t_open_out term_out.f= stdout \ + +#define update_terminal fflush(term_out.f) +#define clear_terminal fflush(term_in.f) +#define wake_up_terminal do_nothing \ + +#define loc cur_input.loc_field \ + +#define si(A) A +#define so(A) A \ + +#define length(A) (str_start[A+1]-str_start[A]) \ + \ + +#define cur_length (pool_ptr-str_start[str_ptr]) \ + +#define append_char(A) \ +{str_pool[pool_ptr]= si(A) ;incr(pool_ptr) ; \ +} +#define flush_char decr(pool_ptr) +#define str_room(A) \ +{if(pool_ptr+A> pool_size) \ +overflow("pool size",pool_size-init_pool_ptr) ; \ + \ +} \ + +#define flush_string {decr(str_ptr) ;pool_ptr= str_start[str_ptr]; \ +} \ + +#define app_lc_hex(A) l= A; \ +if(l<10) append_char(l+'0') else append_char(l-10+'a') \ + +#define no_print 16 +#define term_only 17 +#define log_only 18 +#define term_and_log 19 +#define pseudo 20 +#define new_string 21 +#define max_selector 21 \ + +#define print_lc_hex(A) \ +if((A) <10) print_char((A) +'0') ;else print_char((A) -10+'a') +#define print_ASCII(k) \ +if((k<' ') ||(k> '~') ) \ +{print("^^") ; \ +if(k<0100) print_char(k+0100) ; \ +else if(k<0200) print_char(k-0100) ; \ +else{print_lc_hex(k/16) ;print_lc_hex(k%16) ;} \ +} \ +else print_char(k) \ + +#define prompt_input(A) {wake_up_terminal;print(A) ;term_input() ; \ +} \ + +#define batch_mode 0 +#define nonstop_mode 1 +#define scroll_mode 2 +#define error_stop_mode 3 \ + +#define spotless 0 +#define warning_issued 1 +#define error_message_issued 2 +#define fatal_error_stop 3 \ + +#define hlp1(A) help_line[0]= A;} +#define hlp2(A,B) help_line[1]= A;help_line[0]= B;} +#define hlp3(A,B,C) help_line[2]= A;help_line[1]= B;help_line[0]= C;} +#define hlp4(A,B,C,D) help_line[3]= A;help_line[2]= B;help_line[1]= C;help_line[0]= D;} +#define hlp5(A,B,C,D,E) help_line[4]= A;help_line[3]= B;help_line[2]= C;help_line[1]= D;help_line[0]= E;} +#define hlp6(A,B,C,D,E,F) help_line[5]= A;help_line[4]= B;help_line[3]= C;help_line[2]= D;help_line[1]= E;help_line[0]= F;} +#define help0 help_ptr= 0 +#define help1(A) {help_ptr= 1;hlp1(A) +#define help2(A,B) {help_ptr= 2;hlp2(A,B) +#define help3(A,B,C) {help_ptr= 3;hlp3(A,B,C) +#define help4(A,B,C,D) {help_ptr= 4;hlp4(A,B,C,D) +#define help5(A,B,C,D,E) {help_ptr= 5;hlp5(A,B,C,D,E) +#define help6(A,B,C,D,E,F) {help_ptr= 6;hlp6(A,B,C,D,E,F) \ + +#define succumb {if(interaction==error_stop_mode) \ +interaction= scroll_mode; \ +if(log_opened) error() ; \ +if(interaction> batch_mode) debug_help() ; \ +history= fatal_error_stop;jump_out() ; \ +} \ + +#define check_interrupt {if(interrupt!=0) pause_for_instructions() ; \ +} \ + +#define unity 0200000 +#define two 0400000 \ + +#define nx_plus_y(A,B,C) mult_and_add(A,B,C,07777777777) +#define mult_integers(A,B) mult_and_add(A,B,0,017777777777) \ + +#define inf_bad 10000 \ + +#define set_glue_ratio_zero(A) A= 0.0 +#define set_glue_ratio_one(A) A= 1.0 +#define float(A) ((double) (A) ) +#define unfloat(A) ((glue_ratio) (A) ) +#define float_constant(A) ((double) (A) ) \ + +#define min_quarterword 0 +#define max_quarterword 255 +#define min_halfword 0 +#define max_halfword 65535 \ + +#define qi(A) A+min_quarterword \ + +#define qo(A) A-min_quarterword \ + +#define hi(A) A+min_halfword \ + +#define ho(A) A-min_halfword \ + \ + +#define sc i \ + +#define pointer halfword +#define null min_halfword \ + +#define link(A) mem[A].hh.rh +#define info(A) mem[A].hh.lh \ + +#define mem_end mem_top +#define free_avail(A) \ +{link(A) = avail;avail= A; \ +decr_dyn_used; \ +} \ + +#define fast_get_avail(A) \ +{A= avail; \ +if(A==null) A= get_avail() ; \ +else{avail= link(A) ;link(A) = null; \ +incr_dyn_used; \ +} \ +} \ + +#define empty_flag max_halfword +#define is_empty(A) (link(A) ==empty_flag) +#define node_size(A) info(A) +#define llink(A) info(A+1) +#define rlink(A) link(A+1) \ + +#define type(A) mem[A].hh.b0 +#define subtype(A) mem[A].hh.b1 \ + +#define is_char_node(A) (A>=hi_mem_min) \ + +#define font(A) type(A) +#define character(A) subtype(A) \ + +#define hlist_node 0 +#define box_node_size 9 +#define width_offset 1 +#define depth_offset 2 +#define height_offset 3 +#define width(A) mem[A+width_offset].sc +#define depth(A) mem[A+depth_offset].sc +#define height(A) mem[A+height_offset].sc +#define shift_amount(A) mem[A+4].sc +#define list_offset 5 +#define list_ptr(A) link(A+list_offset) +#define glue_order(A) subtype(A+list_offset) +#define glue_sign(A) type(A+list_offset) +#define normal 0 +#define stretching 1 +#define shrinking 2 +#define glue_offset 6 +#define glue_set(A) mem[A+glue_offset].gr \ + \ + +#define vlist_node 1 \ + +#define rule_node 2 +#define rule_node_size 4 +#define null_flag -010000000000 +#define is_running(A) (A==null_flag) \ + +#define ins_node 3 +#define ins_node_size 5 +#define float_cost(A) mem[A+1].i +#define ins_ptr(A) info(A+4) +#define split_top_ptr(A) link(A+4) \ + +#define mark_node 4 +#define small_node_size 2 +#define mark_ptr(A) mem[A+1].i \ + +#define adjust_node 5 +#define adjust_ptr(A) mark_ptr(A) \ + +#define ligature_node 6 +#define lig_char(A) A+1 +#define lig_ptr(A) link(lig_char(A) ) \ + +#define disc_node 7 +#define replace_count(A) (subtype(A) &0x7F) +#define set_replace_count(A,B) (subtype(A) = (B) &0x7F) +#define set_auto_disc(A) (subtype(A) |= 0x80) +#define is_auto_disc(A) (subtype(A) &0x80) +#define pre_break(A) llink(A) +#define post_break(A) rlink(A) \ + +#define whatsit_node 8 \ + +#define math_node 9 +#define before 0 +#define after 1 \ + +#define precedes_break(A) (type(A) max_save_stack) \ +{max_save_stack= save_ptr; \ +if(max_save_stack> save_size-6) overflow("save size",save_size) ; \ + \ +} \ + +#define saved(A) save_stack[save_ptr+A].i \ + +#define cs_token_flag 07777 \ + +#define left_brace_token 00400 +#define left_brace_limit 01000 +#define right_brace_token 01000 +#define right_brace_limit 01400 +#define math_shift_token 01400 +#define tab_token 02000 +#define out_param_token 02400 +#define space_token 05040 +#define letter_token 05400 +#define other_token 06000 +#define match_token 06400 +#define end_match_token 07000 \ + +#define chr_cmd(A) {print(A) ;print_ASCII(chr_code) ; \ +} \ + +#define state cur_input.state_field +#define index cur_input.index_field +#define start cur_input.start_field +#define limit cur_input.limit_field +#define name cur_input.name_field \ + +#define mid_line 1 +#define skip_blanks (2+max_char_code) +#define new_line (3+max_char_code+max_char_code) \ + +#define terminal_input (name==0) +#define cur_file input_file[index] \ + +#define skipping 1 +#define defining 2 +#define matching 3 +#define aligning 4 +#define absorbing 5 \ + +#define token_list 0 +#define token_type index +#define param_start limit +#define parameter 0 +#define u_template 1 +#define v_template 2 +#define backed_up 3 +#define inserted 4 +#define macro 5 +#define output_text 6 +#define every_par_text 7 +#define every_math_text 8 +#define every_display_text 9 +#define every_hbox_text 10 +#define every_vbox_text 11 +#define every_job_text 12 +#define every_cr_text 13 +#define mark_text 14 +#define write_text 15 \ + +#define begin_pseudoprint \ +{l= tally;tally= 0;selector= pseudo; \ +trick_count= 1000000; \ +} +#define set_trick_count \ +{first_count= tally; \ +trick_count= tally+1+error_line-half_error_line; \ +if(trick_count max_in_stack) \ +{max_in_stack= input_ptr; \ +if(input_ptr==stack_size) overflow("input stack size",stack_size) ; \ + \ +} \ +input_stack[input_ptr]= cur_input; \ +incr(input_ptr) ; \ +} \ + +#define pop_input \ +{decr(input_ptr) ;cur_input= input_stack[input_ptr]; \ +} \ + +#define back_list(A) begin_token_list(A,backed_up) +#define ins_list(A) begin_token_list(A,inserted) \ + +#define any_state_plus(A) case mid_line+A:case skip_blanks+A:case new_line+A \ + +#define add_delims_to(A) A+math_shift:A+tab_mark:A+mac_param: \ +A+sub_mark:A+letter:A+other_char \ + +#define is_hex(A) (((A>='0') &&(A<='9') ) ||((A>='a') &&(A<='f') ) ) +#define hex_to_cur_chr \ +if(c<='9') cur_chr= c-'0';else cur_chr= c-'a'+10; \ +if(cc<='9') cur_chr= 16*cur_chr+cc-'0'; \ +else cur_chr= 16*cur_chr+cc-'a'+10 \ + +#define no_expand_flag 257 \ + +#define end_line_char_inactive (end_line_char<0) ||(end_line_char> 255) \ + +#define store_new_token(A) {q= get_avail() ;link(p) = q;info(q) = A; \ +p= q; \ +} +#define fast_store_new_token(A) {fast_get_avail(q) ;link(p) = q;info(q) = A; \ +p= q; \ +} \ + +#define top_mark_code 0 +#define first_mark_code 1 +#define bot_mark_code 2 +#define split_first_mark_code 3 +#define split_bot_mark_code 4 +#define top_mark cur_mark[top_mark_code] +#define first_mark cur_mark[first_mark_code] +#define bot_mark cur_mark[bot_mark_code] +#define split_first_mark cur_mark[split_first_mark_code] +#define split_bot_mark cur_mark[split_bot_mark_code] \ + +#define int_val 0 +#define dimen_val 1 +#define glue_val 2 +#define mu_val 3 +#define ident_val 4 +#define tok_val 5 \ + +#define scanned_result(A,B) {cur_val= A;cur_val_level= B;} \ + +#define input_line_no_code (glue_val+1) +#define badness_code (glue_val+2) \ + +#define max_dimen 07777777777 \ + +#define octal_token (other_token+'\'') +#define hex_token (other_token+'"') +#define alpha_token (other_token+'`') +#define point_token (other_token+'.') +#define continental_point_token (other_token+',') \ + +#define infinity 017777777777 +#define zero_token (other_token+'0') +#define A_token (letter_token+'A') +#define other_A_token (other_token+'A') \ + +#define scan_normal_dimen scan_dimen(false,false,false) \ + +#define set_conversion(A,B) {num= A;denom= B;} \ + +#define default_rule 26214 \ + +#define number_code 0 +#define roman_numeral_code 1 +#define string_code 2 +#define meaning_code 3 +#define font_name_code 4 +#define job_name_code 5 \ + +#define closed 2 +#define just_open 1 \ + +#define if_char_code 0 +#define if_cat_code 1 +#define if_int_code 2 +#define if_dim_code 3 +#define if_odd_code 4 +#define if_vmode_code 5 +#define if_hmode_code 6 +#define if_mmode_code 7 +#define if_inner_code 8 +#define if_void_code 9 +#define if_hbox_code 10 +#define if_vbox_code 11 +#define ifx_code 12 +#define if_eof_code 13 +#define if_true_code 14 +#define if_false_code 15 +#define if_case_code 16 \ + +#define if_node_size 2 +#define if_line_field(A) mem[A+1].i +#define if_code 1 +#define fi_code 2 +#define else_code 3 +#define or_code 4 \ + +#define get_x_token_or_active_char \ +{get_x_token() ; \ +if(cur_cmd==relax) if(cur_chr==no_expand_flag) \ +{cur_cmd= active_char; \ +cur_chr= cur_tok-cs_token_flag-active_base; \ +} \ +} \ + +#define TEX_area "TeXinputs/" \ + +#define TEX_font_area "TeXfonts/" \ + \ + +#define MAX_CUR_FILE_NAME 1024 \ + +#define append_to_name(A) {c= A;incr(k) ; \ +if(k<=file_name_size) name_of_file[k]= xchr[c]; \ +} \ + +#define format_default_length 20 +#define format_area_length 11 +#define format_ext_length 4 +#define format_extension ".fmt" \ + +#define pack_cur_name pack_file_name(cur_name,cur_area,cur_ext) \ + +#define ensure_dvi_open if(output_file_name==0) \ +{if(job_name==0) open_log_file() ; \ +pack_job_name(".dvi") ; \ +while(!b_open_out(&dvi_file) ) \ +prompt_file_name("file name for output",".dvi") ; \ +output_file_name= b_make_name_string(&dvi_file) ; \ +} \ + +#define no_tag 0 +#define lig_tag 1 +#define list_tag 2 +#define ext_tag 3 \ + +#define stop_flag qi(128) +#define kern_flag qi(128) +#define skip_byte(A) A.b0 +#define next_char(A) A.b1 +#define op_byte(A) A.b2 +#define rem_byte(A) A.b3 \ + +#define ext_top(A) A.b0 +#define ext_mid(A) A.b1 +#define ext_bot(A) A.b2 +#define ext_rep(A) A.b3 \ + +#define slant_code 1 +#define space_code 2 +#define space_stretch_code 3 +#define space_shrink_code 4 +#define x_height_code 5 +#define quad_code 6 +#define extra_space_code 7 \ + +#define non_char qi(256) +#define non_address 0 \ + +#define char_info(A,B) font_info[char_base[A]+B].qqqq +#define char_width(A,B) font_info[width_base[A]+B.b0].sc +#define char_exists(A) (A.b0> min_quarterword) +#define char_italic(A,B) font_info[italic_base[A]+(qo(B.b2) ) /4].sc +#define height_depth(A) qo(A.b1) +#define char_height(A,B) font_info[height_base[A]+(B) /16].sc +#define char_depth(A,B) font_info[depth_base[A]+(B) %16].sc +#define char_tag(A) ((qo(A.b2) ) %4) \ + +#define char_kern(A,B) font_info[kern_base[A]+256*op_byte(B) +rem_byte(B) ].sc +#define kern_base_offset 256*(128+min_quarterword) +#define lig_kern_start(A,B) lig_kern_base[A]+B.b3 +#define lig_kern_restart(A,B) lig_kern_base[A]+256*op_byte(B) +rem_byte(B) +32768-kern_base_offset \ + +#define param_end(A) param_base[A]].sc +#define param(A) font_info[A+param_end +#define slant param(slant_code) +#define space param(space_code) +#define space_stretch param(space_stretch_code) +#define space_shrink param(space_shrink_code) +#define x_height param(x_height_code) +#define quad param(quad_code) +#define extra_space param(extra_space_code) \ + +#define abort goto bad_tfm \ + +#define start_font_error_message print_err("Font ") ;sprint_cs(u) ; \ +print_char('=') ;print_file_name(nom,aire,"") ; \ +if(s>=0) \ +{print(" at ") ;print_scaled(s) ;print("pt") ; \ +} \ +else if(s!=-1000) \ +{print(" scaled ") ;print_int(-s) ; \ +} \ + +#define fget (hpos++) +#define fbyte (*hpos) +#define read_sixteen(A) {A= fbyte; \ +if(A> 127) abort; \ +fget;A= A*0400+fbyte; \ +} +#define store_four_quarters(A) {fget;a= fbyte;qw.b0= qi(a) ; \ +fget;b= fbyte;qw.b1= qi(b) ; \ +fget;c= fbyte;qw.b2= qi(c) ; \ +fget;d= fbyte;qw.b3= qi(d) ; \ +A= qw; \ +} \ + +#define check_byte_range(A) {if((A ec) ) abort;} +#define current_character_being_worked_on k+bc-fmem_ptr \ + +#define store_scaled(A) {fget;a= fbyte;fget;b= fbyte; \ +fget;c= fbyte;fget;d= fbyte; \ +sw= (((((d*z) /0400) +(c*z) ) /0400) +(b*z) ) /beta; \ +if(a==0) A= sw;else if(a==255) A= sw-alpha;else abort; \ +} \ + +#define check_existence(A) \ +{check_byte_range(A) ; \ +qw= char_info(f,A) ; \ +if(!char_exists(qw) ) abort; \ +} \ + +#define adjust(A) A[f]= qo(A[f]) \ + \ + +#define set_char_0 0 +#define set1 128 +#define set_rule 132 +#define put_rule 137 +#define nop 138 +#define bop 139 +#define eop 140 +#define push 141 +#define pop 142 +#define right1 143 +#define w0 147 +#define w1 148 +#define x0 152 +#define x1 153 +#define down1 157 +#define y0 161 +#define y1 162 +#define z0 166 +#define z1 167 +#define fnt_num_0 171 +#define fnt1 235 +#define xxx1 239 +#define xxx4 242 +#define fnt_def1 243 +#define pre 247 +#define post 248 +#define post_post 249 \ + +#define id_byte 2 \ + +#define dvi_out(A) {dvi_buf[dvi_ptr]= A;incr(dvi_ptr) ; \ +if(dvi_ptr==dvi_limit) dvi_swap() ; \ +} \ + +#define movement_node_size 3 +#define location(A) mem[A+2].i \ + +#define y_here 1 +#define z_here 2 +#define yz_OK 3 +#define y_OK 4 +#define z_OK 5 +#define d_fixed 6 \ + +#define none_seen 0 +#define y_seen 6 +#define z_seen 12 \ + +#define synch_h if(cur_h!=dvi_h) \ +{movement(cur_h-dvi_h,right1) ;dvi_h= cur_h; \ +} +#define synch_v if(cur_v!=dvi_v) \ +{movement(cur_v-dvi_v,down1) ;dvi_v= cur_v; \ +} \ + +#define billion float_constant(1000000000) +#define vet_glue(A) glue_temp= A; \ +if(glue_temp> billion) \ +glue_temp= billion; \ +else if(glue_temp<-billion) \ +glue_temp= -billion \ + +#define exactly 0 +#define additional 1 +#define natural 0,additional \ + +#define vpack(A,B) vpackage(A,B,max_dimen) \ + +#define noad_size 4 +#define nucleus(A) A+1 +#define supscr(A) A+2 +#define subscr(A) A+3 +#define math_type(A) link(A) +#define fam font +#define math_char 1 +#define sub_box 2 +#define sub_mlist 3 +#define math_text_char 4 \ + +#define ord_noad (unset_node+3) +#define op_noad (ord_noad+1) +#define bin_noad (ord_noad+2) +#define rel_noad (ord_noad+3) +#define open_noad (ord_noad+4) +#define close_noad (ord_noad+5) +#define punct_noad (ord_noad+6) +#define inner_noad (ord_noad+7) +#define limits 1 +#define no_limits 2 \ + +#define left_delimiter(A) A+4 +#define right_delimiter(A) A+5 +#define radical_noad (inner_noad+1) +#define radical_noad_size 5 +#define fraction_noad (radical_noad+1) +#define fraction_noad_size 6 +#define small_fam(A) mem[A].qqqq.b0 +#define small_char(A) mem[A].qqqq.b1 +#define large_fam(A) mem[A].qqqq.b2 +#define large_char(A) mem[A].qqqq.b3 +#define thickness(A) width(A) +#define default_code 010000000000 +#define numerator(A) supscr(A) +#define denominator(A) subscr(A) \ + +#define under_noad (fraction_noad+1) +#define over_noad (under_noad+1) +#define accent_noad (over_noad+1) +#define accent_noad_size 5 +#define accent_chr(A) A+4 +#define vcenter_noad (accent_noad+1) +#define left_noad (vcenter_noad+1) +#define right_noad (left_noad+1) +#define delimiter(A) nucleus(A) +#define scripts_allowed(A) (type(A) >=ord_noad) &&(type(A) null) \ +{link(t) = lig_ptr(lig_stack) ; \ +t= link(t) ;incr(j) ; \ +} \ +p= lig_stack;lig_stack= link(p) ;free_node(p,small_node_size) ; \ +if(lig_stack==null) set_cur_r else cur_r= character(lig_stack) ; \ +} \ + +#define advance_major_tail {major_tail= link(major_tail) ;incr(r_count) ; \ +} \ + +#define trie_link(A) trie[A].rh +#define trie_char(A) trie[A].b1 +#define trie_op(A) trie[A].b0 \ + +#define set_cur_lang if(language<=0) cur_lang= 0; \ +else if(language> 255) cur_lang= 0; \ +else cur_lang= language \ + +#define trie_root trie_l[0] \ + +#define trie_ref trie_hash +#define trie_back(A) trie[A].lh \ + +#define active_height active_width +#define cur_height active_height[1] +#define set_height_zero(A) active_height[A]= 0 \ + +#define deplorable 100000 \ + +#define inserts_only 1 \ + +#define box_there 2 \ + +#define page_ins_node_size 4 +#define inserting 0 +#define split_up 1 +#define broken_ptr(A) link(A+1) \ + +#define broken_ins(A) info(A+1) +#define last_ins_ptr(A) link(A+2) +#define best_ins_ptr(A) info(A+2) \ + +#define page_goal page_so_far[0] +#define page_total page_so_far[1] +#define page_shrink page_so_far[6] +#define page_depth page_so_far[7] \ + +#define print_plus(A,B) if(page_so_far[A]!=0) \ +{print(" plus ") ;print_scaled(page_so_far[A]) ;print(B) ;} \ + +#define set_page_so_far_zero(A) page_so_far[A]= 0 \ + +#define contrib_tail nest[0].tail_field \ + +#define adjust_space_factor \ +main_s= sf_code(cur_chr) ; \ +if(main_s==1000) space_factor= 1000; \ +else if(main_s<1000) \ +{if(main_s> 0) space_factor= main_s; \ +} \ +else if(space_factor<1000) space_factor= 1000; \ +else space_factor= main_s \ + +#define pack_lig(X) \ +{main_p= new_ligature(main_f,cur_l,link(cur_q) ) ; \ +if(lft_hit) \ +{subtype(main_p) = 2;lft_hit= false; \ +} \ +if(X) if(lig_stack==null) \ +{incr(subtype(main_p) ) ;rt_hit= false; \ +} \ +link(cur_q) = main_p;tail= main_p;ligature_present= false; \ +} \ + +#define wrapup(A) if(cur_l null) \ +if(character(tail) ==qi(hyphen_char[main_f]) ) ins_disc= true; \ +if(ligature_present) pack_lig(A) ; \ +if(ins_disc) \ +{ins_disc= false; \ +if(mode> 0) tail_append(new_disc() ) ; \ +} \ +} \ + +#define any_mode(A) case vmode+A:case hmode+A:case mmode+A \ + +#define non_math(A) case vmode+A:case hmode+A \ + +#define fil_code 0 +#define fill_code 1 +#define ss_code 2 +#define fil_neg_code 3 +#define skip_code 4 +#define mskip_code 5 \ + +#define box_flag 010000000000 +#define ship_out_flag box_flag+512 +#define leader_flag box_flag+513 +#define box_code 0 +#define copy_code 1 +#define last_box_code 2 +#define vsplit_code 3 +#define vtop_code 4 \ + +#define fam_in_range ((cur_fam>=0) &&(cur_fam<16) ) \ + +#define above_code 0 +#define over_code 1 +#define atop_code 2 +#define delimited_code 3 \ + +#define global (a>=4) +#define define(A,B,C) if(global) geq_define(A,B,C) ;else eq_define(A,B,C) +#define word_define(A,B) if(global) geq_word_define(A,B) ;else eq_word_define(A,B) \ + +#define char_def_code 0 +#define math_char_def_code 1 +#define count_def_code 2 +#define dimen_def_code 3 +#define skip_def_code 4 +#define mu_skip_def_code 5 +#define toks_def_code 6 \ + +#define show_code 0 +#define show_box_code 1 +#define show_the_code 2 +#define show_lists_code 3 \ + +#define too_small(X) {wake_up_terminal; \ +wterm_ln("---! Must increase the %s",X) ; \ + \ +goto bad_fmt; \ +} \ + +#define dump_wd(A) {fmt_file.d= A;put(fmt_file) ;} +#define dump_int(A) {fmt_file.d.i= A;put(fmt_file) ;} +#define dump_hh(A) {fmt_file.d.hh= A;put(fmt_file) ;} +#define dump_qqqq(A) {fmt_file.d.qqqq= A;put(fmt_file) ;} \ + +#define undump_wd(A) {get(fmt_file) ;A= fmt_file.d;} +#define undump_int(A) {get(fmt_file) ;A= fmt_file.d.i;} +#define undump_hh(A) {get(fmt_file) ;A= fmt_file.d.hh;} +#define undump_qqqq(A) {get(fmt_file) ;A= fmt_file.d.qqqq;} +#define undump(A,B,C) {undump_int(x) ;if((x B) ) goto bad_fmt;else C= x;} +#define undump_size(A,B,C,D) {undump_int(x) ; \ +if(x B) too_small(C) else D= x;} \ + +#define dump_four_ASCII \ +w.b0= qi(so(str_pool[k]) ) ;w.b1= qi(so(str_pool[k+1]) ) ; \ +w.b2= qi(so(str_pool[k+2]) ) ;w.b3= qi(so(str_pool[k+3]) ) ; \ +dump_qqqq(w) \ + +#define undump_four_ASCII \ +undump_qqqq(w) ; \ +str_pool[k]= si(qo(w.b0) ) ;str_pool[k+1]= si(qo(w.b1) ) ; \ +str_pool[k+2]= si(qo(w.b2) ) ;str_pool[k+3]= si(qo(w.b3) ) \ + +#define write_node_size 2 +#define open_node_size 3 +#define open_node 0 +#define write_node 1 +#define close_node 2 +#define special_node 3 +#define language_node 4 +#define what_lang(A) link(A+1) +#define what_lhm(A) type(A+1) +#define what_rhm(A) subtype(A+1) +#define write_tokens(A) link(A+1) +#define write_stream(A) info(A+1) +#define open_name(A) link(A+1) +#define open_area(A) info(A+2) +#define open_ext(A) link(A+2) \ + +#define hitex_ext language_node+1 +#define par_node hitex_ext +#define par_node_size 3 +#define par_type(A) type(A+1) +#define int_type 0 +#define dimen_type 1 +#define glue_type 2 +#define par_number(A) subtype(A+1) +#define par_value(A) mem[A+2] \ + +#define graf_node hitex_ext+1 +#define graf_node_size 5 +#define graf_penalty(A) mem[A+1].i +#define graf_extent(A) link(A+3) +#define graf_params(A) info(A+4) +#define graf_list(A) link(A+4) \ + +#define disp_node hitex_ext+2 +#define disp_node_size 3 +#define display_left(A) type(A+1) +#define display_no_bs(A) subtype(A+1) +#define display_params(A) link(A+1) +#define display_formula(A) link(A+2) +#define display_eqno(A) info(A+2) \ + +#define baseline_node hitex_ext+3 +#define baseline_node_size small_node_size +#define baseline_node_no(A) mem[A+1].i \ + +#define image_node hitex_ext+4 +#define image_node_size 9 +#define image_width(A) width(A) +#define image_height(A) height(A) +#define image_depth(A) depth(A) +#define image_no(A) mem[A+4].i +#define image_stretch(A) mem[A+5].sc +#define image_shrink(A) mem[A+6].sc +#define image_stretch_order(A) stretch_order(A+7) +#define image_shrink_order(A) shrink_order(A+7) +#define image_name(A) link(A+7) +#define image_area(A) info(A+8) +#define image_ext(A) link(A+8) \ + +#define hpack_node hitex_ext+5 +#define vpack_node hitex_ext+6 +#define pack_node_size box_node_size +#define pack_m(A) type(A+list_offset) +#define pack_limit(A) mem[(A) +1+list_offset].sc +#define pack_extent(A) link(A+2+list_offset) \ + +#define hset_node hitex_ext+7 +#define vset_node hitex_ext+8 +#define set_node_size box_node_size +#define set_stretch_order glue_sign +#define set_shrink_order glue_order +#define set_stretch(A) mem[(A) +1+list_offset].sc +#define set_extent(A) pack_extent(A) +#define set_shrink(A) mem[(A) +3+list_offset].sc \ + +#define align_node hitex_ext+9 +#define align_node_size 4 +#define align_extent(A) link(A+2) +#define align_m(A) type(A+2) +#define align_v(A) subtype(A+2) +#define align_preamble(A) info(A+3) +#define align_list(A) link(A+3) \ + +#define setpage_node hitex_ext+10 +#define setpage_node_size 6 +#define setpage_name(A) link(A+1) +#define setpage_number(A) type(A+1) +#define setpage_id(A) subtype(A+1) +#define setpage_priority(A) info(A+2) +#define setpage_topskip(A) link(A+2) +#define setpage_depth(A) mem[A+3].sc +#define setpage_height(A) info(A+4) +#define setpage_width(A) link(A+4) +#define setpage_list(A) info(A+5) +#define setpage_streams(A) link(A+5) \ + +#define setstream_node hitex_ext+11 +#define setstream_node_size 6 +#define setstream_number(A) type(A+1) +#define setstream_insertion(A) subtype(A+1) +#define setstream_mag(A) link(A+1) +#define setstream_prefered(A) type(A+2) +#define setstream_next(A) subtype(A+2) +#define setstream_ratio(A) link(A+2) +#define setstream_max(A) info(A+3) +#define setstream_width(A) link(A+3) +#define setstream_topskip(A) info(A+4) +#define setstream_height(A) link(A+4) +#define setstream_before(A) info(A+5) +#define setstream_after(A) link(A+5) \ + +#define stream_node hitex_ext+12 +#define stream_node_size 2 +#define stream_number(A) type(A+1) +#define stream_insertion(A) subtype(A+1) \ + +#define stream_after_node hitex_ext+13 +#define stream_before_node hitex_ext+14 \ + +#define xdimen_node hitex_ext+15 +#define xdimen_node_size 4 +#define xdimen_ref_count(A) link(A) +#define xdimen_width(A) mem[A+1].sc +#define xdimen_hfactor(A) mem[A+2].sc +#define xdimen_vfactor(A) mem[A+3].sc \ + +#define ignore_node hitex_ext+16 +#define ignore_node_size small_node_size +#define ignore_info(A) type(A+1) +#define ignore_list(A) link(A+1) \ + +#define label_node hitex_ext+17 +#define label_node_size 2 +#define label_has_name(A) type(A+1) +#define label_where(A) subtype(A+1) +#define label_ptr(A) link(A+1) +#define label_ref(A) link(A+1) \ + +#define start_link_node hitex_ext+18 +#define end_link_node hitex_ext+19 +#define link_node_size 2 \ + +#define outline_node hitex_ext+20 +#define outline_node_size 4 +#define outline_ptr(A) link(A+2) +#define outline_depth(A) mem[A+3].i \ + \ + +#define immediate_code 4 +#define set_language_code 5 \ + +#define adv_past(A) {} \ + +#define end_write_token cs_token_flag+end_write \ + + +#line 2625 "htex.ch" + +enum{/*11:*/ +#line 355 "btex.w" + +mem_max= 65534, + + +mem_min= 0, + + +buf_size= 2048, + + +error_line= 72, +half_error_line= 42, + +max_print_line= 79, +stack_size= 200, +max_in_open= 6, + +font_max= 255, + +font_mem_size= 65535, +param_size= 60, +nest_size= 400, +max_strings= 30000, +string_vacancies= 75000, + + +pool_size= 400000, + + + +save_size= 600, + +trie_size= 65534, + +trie_op_size= 65534, +dvi_buf_size= 8, +file_name_size= 1024, +empty_string= 256 + +/*:11*/ +#line 2626 "htex.ch" +}; +/*18:*/ +#line 495 "btex.w" + +typedef uint8_t ASCII_code; + +/*:18*//*25:*/ +#line 731 "btex.w" + +typedef uint8_t eight_bits; +typedef struct{FILE*f;text_char d;}alpha_file; +typedef struct{FILE*f;eight_bits d;}byte_file; + +/*:25*//*38:*/ +#line 1091 "btex.w" + +typedef int32_t pool_pointer; +typedef int16_t str_number; +typedef uint8_t packed_ASCII_code; + +/*:38*//*104:*/ +#line 2126 "btex.w" + +typedef int scaled; +typedef int32_t nonnegative_integer; +typedef int8_t small_number; + +/*:104*//*113:*/ +#line 2320 "btex.w" + +#if __SIZEOF_FLOAT__==4 +typedef float float32_t; +#else +#error float type must have size 4 +#endif +typedef float glue_ratio; + +/*:113*//*117:*/ +#line 2429 "btex.w" + +typedef uint8_t quarterword; +typedef uint16_t halfword; +typedef int8_t two_choices; +typedef int8_t four_choices; +typedef struct{ +halfword rh; +union{ +halfword lh; +struct{quarterword b0;quarterword b1;}; +};}two_halves; +typedef struct{ +quarterword b0; +quarterword b1; +quarterword b2; +quarterword b3; +}four_quarters; +typedef struct{ +union{ +int i; +glue_ratio gr; +two_halves hh; +four_quarters qqqq; +};}memory_word; +typedef struct{FILE*f;memory_word d;}word_file; + +/*:117*//*155:*/ +#line 3152 "btex.w" + +typedef int8_t glue_ord; + +/*:155*//*221:*/ +#line 4309 "btex.w" + +typedef struct{int16_t mode_field; +pointer head_field,tail_field; +#line 698 "htex.ch" +int pg_field; +pointer bs_field,ls_field; +scaled lsl_field; +uint8_t*bs_pos; +scaled hs_field; +scaled ds_field,dw_field,di_field; +scaled ht_field; +uint32_t np_field; +#line 4313 "btex.w" +memory_word aux_field; +}list_state_record; + +/*:221*//*279:*/ +#line 5881 "btex.w" + +typedef int8_t group_code; + +/*:279*//*310:*/ +#line 6457 "btex.w" + +typedef struct{ +quarterword state_field,index_field; +halfword start_field,loc_field,limit_field,name_field; +}in_state_record; + +/*:310*//*558:*/ +#line 10727 "btex.w" + +typedef uint8_t internal_font_number; +typedef uint16_t font_index; + +/*:558*//*605:*/ +#line 11900 "btex.w" + +typedef int8_t dvi_index; + +/*:605*//*944:*/ +#line 18120 "btex.w" + +typedef uint16_t trie_pointer; + +/*:944*//*949:*/ +#line 18186 "btex.w" + +typedef int16_t hyph_pointer; + +/*:949*/ +#line 2627 "htex.ch" + +extern void list_init(void); +extern void hpack_page(void); +extern void happend_insertion(pointer p); +extern bool hbuild_page(void); +extern void hdisplay(pointer p,pointer a,bool l); +extern void mem_init(void); +#line 25006 "btex.w" +extern pointer copy_node_list(pointer p); +extern void flush_node_list(pointer p); +extern +pointer vpackage(pointer p,scaled h,small_number m,scaled l); +extern pointer hpack(pointer p,scaled w,small_number m); +extern pointer new_math(scaled w,small_number s); +extern pointer new_ligature(quarterword f,quarterword c,pointer q); +extern pointer new_penalty(int m); +extern pointer new_spec(pointer p); +extern pointer new_kern(scaled w); +extern pointer new_disc(void); +extern pointer new_null_box(void); +extern pointer new_rule(void); +extern pointer new_glue(pointer q); +extern pointer new_character(internal_font_number f,eight_bits c); +extern int*const char_base; +extern int*const width_base; +extern memory_word font_info[]; +extern scaled*const font_size; +#line 2641 "htex.ch" +extern char**const font_name; +extern void hclear_fonts(void); +extern void read_font_info(int f,char*nom,scaled s); +#line 25028 "btex.w" +extern list_state_record cur_list; +extern pointer get_node(int s); +extern pointer lo_mem_max; +extern pointer hi_mem_min; +extern memory_word*const mem; +extern pointer just_box; +#line 2649 "htex.ch" +extern void append_to_vlist(pointer b,uint32_t offset); +#line 25035 "btex.w" +extern pointer adjust_tail; +extern void freeze_page_specs(small_number s); +extern pointer page_tail; +extern scaled best_height_plus_depth; +extern halfword badness(scaled t,scaled s); +extern void show_box(pointer p); +extern pointer temp_ptr; +extern scaled best_size; +extern pointer best_page_break; +extern int least_page_cost; +extern int insert_penalties; +extern scaled page_so_far[]; +extern int page_contents; +extern scaled page_max_depth; +extern int nest_ptr; +extern void pop_nest(void); +extern void push_nest(void); +extern void delete_glue_ref(pointer p); +#line 2655 "htex.ch" +void line_break(int final_widow_penalty,pointer par_ptr);/*:1410*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/main.c b/Build/source/texk/web2c/hitexdir/hintview/src/main.c new file mode 100644 index 00000000000..f8e4b9e16f5 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/main.c @@ -0,0 +1,406 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define VERSION 1 +#define REVISION 0 +#define PATCHLEVEL 0 + +#if 0 +#include "rendernative.h" /* rendernative needs gcache_s */ +#else +extern void nativeInit(void); +extern void nativeClear(void); +extern void nativeSetDark(int dark); +#endif +#include "error.h" +#include "basetypes.h" +#include "format.h" +#include "get.h" +#include "hint.h" +#include "hrender.h" + +FILE* hlog; +jmp_buf error_exit; + +/* Error Handling */ +int herror(const char *title, const char *message) +{ fprintf(stderr,"ERROR %s: %s\n",title,message); + return 0; +} + +int hmessage(char *title, char *format, ...) +{ va_list vargs; + va_start(vargs,format); + vfprintf(stderr, format, vargs); + return 0; +} + +void error_callback(int error, const char* description) +{ herror("OpenGL",description); + longjmp(error_exit,1); +} + +GLFWwindow* window; +int px_h=1024, px_v=768; // size in pixel +int page_h, page_v; // size in scaled points +double x_dpi, y_dpi; +#define SCALE_MIN 0.2 +#define SCALE_NORMAL 1.0 +#define SCALE_MAX 5.0 +double scale=SCALE_NORMAL; +uint64_t pos; /* position of current page */ + +void framebuffer_size_callback(GLFWwindow* window, int w, int h) +{ px_h=w; px_v=h; + glViewport(0, 0, w, h); + //LOG("w=%d, h=%d\n",w,h); + hint_resize(px_h,px_v,scale*x_dpi,scale*y_dpi); + hint_page(); +} + +void getDPI(void) +{ int widthMM, heightMM; + GLFWmonitor* monitor = glfwGetPrimaryMonitor(); + glfwGetMonitorPhysicalSize(monitor, &widthMM, &heightMM); + const GLFWvidmode* mode = glfwGetVideoMode(monitor); + x_dpi = mode->width / (widthMM / 25.4); + y_dpi = mode->height / (heightMM / 25.4); + //LOG("xdpi=%f, ydpi=%f\n",x_dpi,y_dpi); +} + +void hint_unmap(void) +{ hget_unmap(); +} + +bool hint_map(void) +{ return hget_map(); +} + +int open_file(int home) +{ hint_clear_fonts(true); + if (!hint_begin()) return 0; + if (home) + hint_page_home(); + else + hint_page_top(0); + // strncpy(title_name,hin_name,MAX_PATH); + // SetNavigationTree(); + //SetWindowText(hMainWnd,title_name); +return 1; +} + +static void reload_file(void) +{ double fpos=hint_get_fpos(); + hint_begin(); + pos=hint_set_fpos(fpos); + //LOG("reloading...\n"); +} + +static int new_file_time(void) +{ struct stat st; + if (hin_name!=NULL && + stat(hin_name,&st)==0 && + st.st_size>0) + { + //LOG("file %s %lu\n",hin_name,st.st_mtime); + if (st.st_mtime>hin_time) + return 1; + else + return 0; + } + return 0; +} + +int dark = 0, loading=0, autoreload=0, home=0; + +int usage(void) +{ return herror("Usage:", "hintview [options] file\n" + "Call 'hintview --help' for details.\n"); +} + +int help(void) +{ fprintf(stdout,"%s", + "Usage: hintview [options] file\n" + "Options:\n" + " -a Start in autoreload mode.\n" + " -h Start with the documents home page.\n" + " -n Start in night mode.\n" +#if 0 + " -o Show the documents outline.\n" +#endif + " -z Start with zoom level 100%.\n" + " --help Display this message.\n" + " --version Display the version.\n" + "\n" + "See the hintview man page for more details.\n" + ); + return 0; +} + +int command_line(int argc, char *argv[]) +{ size_t sl; + int i; + for (i=1; argv[i]!=NULL && argv[i][0]=='-'; i++) + { switch (argv[i][1]) + { case '-': + if (strcmp(argv[i]+2,"help")==0) return help(); + else if (strcmp(argv[i]+2,"version")==0) + { fprintf(stdout,"hintview version %d.%d.%d\n", VERSION, REVISION, PATCHLEVEL); + return 0; + } + else + return usage(); + case 'a': autoreload=1; break; + case 'n': dark=1; break; + case 'o': break; + case 'z': scale=SCALE_NORMAL; break; + case 'h': home=1; break; + default: return usage(); + } + } + if (argv[i]==NULL) + return usage(); + if (hin_name!=NULL) free(hin_name); + hin_name=malloc(strlen(argv[i])+1); + if (hin_name==NULL) + return herror("Out of memory for file name", argv[i]); + strcpy(hin_name,argv[i]); + sl=strlen(hin_name); + if (sl>4 && strncmp(hin_name+sl-4,".hnt",4)!=0) + return herror("Unknown File Type,I dont know how to open this file", argv[1]); +return 1; +} + +GLFWcursor *drag_cursor, *hand_cursor, *arrow_cursor; +int mouse_down=0, drag=0, on_link=0; + +void clear_cursor(void) +{ if (on_link||drag) + { glfwSetCursor(window, arrow_cursor); on_link=drag=0;} +} + +/* combining the key with the shift, control, alt or super flag */ +#define KEY_MOD(K,M) (((K)<<4)|((M)&0xF)) +#define KEY(K) KEY_MOD(K,0) +#define CTRL(K) KEY_MOD(K,GLFW_MOD_CONTROL) + +void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) +{ if (action!=GLFW_PRESS) return; + switch (KEY_MOD(key,mods)) { + case CTRL(GLFW_KEY_Q): + glfwSetWindowShouldClose(window,1); + break; + case CTRL(GLFW_KEY_N): + dark=!dark; + nativeSetDark(dark); + break; + case KEY(GLFW_KEY_HOME): + case CTRL(GLFW_KEY_H): + hint_page_home(); + clear_cursor(); + break; + case CTRL(GLFW_KEY_Z): + case CTRL(GLFW_KEY_Y): /* US keyboard */ + scale=SCALE_NORMAL; + hint_resize(px_h,px_v,scale*x_dpi,scale*y_dpi); + hint_page(); + hint_clear_fonts(true); + clear_cursor(); + break; + case KEY(GLFW_KEY_PAGE_DOWN): + pos=hint_page_next(); + hint_page(); + clear_cursor(); + break; + case KEY(GLFW_KEY_PAGE_UP): + pos=hint_page_prev(); + hint_page(); + clear_cursor(); + break; + case CTRL(GLFW_KEY_A): /* auto reload */ + autoreload=!autoreload; + if (!autoreload) + break; /* else fall through to reload */ + case CTRL(GLFW_KEY_R): /* reload */ + if (!loading) + { loading=1; + HINT_TRY reload_file(); + loading=0; + } + clear_cursor(); + break; + break; + case CTRL(GLFW_KEY_F): /* find */ + break; + case CTRL(GLFW_KEY_O): /* outlines */ + break; + default: + // LOG("key %d, scan %d, action %d, mosd %d\n",key, scancode, action, mods); + break; + } +} + +/* convert pixel to scaled points (including scale) */ + +#define PX2SP(X,DPI) floor((X)*ONE*72.27/((DPI)*scale)) + +void mouse_click(void) +{ double x,y; + int link; + glfwGetCursorPos(window, &x, &y); + //LOG("xy= %fx%f\n", x,y); + HINT_TRY { + link=hint_find_link(PX2SP(x,x_dpi),PX2SP(y,y_dpi),2*ONE); + if (link>=0) + { hint_link_page(link); + clear_cursor(); + } + } +} + +double x_start, y_start, xy_start, scale_start, time_start; +#define DELTA_T 0.4 +#define DELTA_XY 16.0 + +static void cursor_position_callback(GLFWwindow* window, double x, double y) +{ //LOG("xy= %fx%f\n", x-x_start,y-y_start); + double f; + if (!mouse_down) + { int link; + link=hint_find_link(PX2SP(x,x_dpi),PX2SP(y,y_dpi),2*ONE); + if (link>=0 && !on_link) + { glfwSetCursor(window, hand_cursor); on_link=1; } + else if (link<0 && on_link) + { glfwSetCursor(window, arrow_cursor); on_link=0; } + return; + } + if (!drag) /* we dont know whether this is a click or a drag */ + { double d = (x-x_start)*(x-x_start)+(y-y_start)*(y-y_start); + if (d<= DELTA_XY) + { double t=glfwGetTime(); + if (t<=time_start+DELTA_T) + return; + } + /* start dragging */ + drag=1; + glfwSetCursor(window, drag_cursor); + xy_start=x_start*x_start+y_start*y_start; + } + /* dragging */ + f=(x_start*x+y_start*y)/xy_start; /* projection of (x,y) on (x_start,y_start) */ + scale=scale_start*f; + if (scale < SCALE_MIN) scale=SCALE_MIN; + if (scale > SCALE_MAX) scale=SCALE_MAX; + hint_resize(px_h,px_v,scale*x_dpi,scale*y_dpi); + hint_page(); +} + + +void mouse_button_callback(GLFWwindow* window, int button, int action, int mods) +{ if (button == GLFW_MOUSE_BUTTON_LEFT) + { if (action == GLFW_PRESS) + { glfwGetCursorPos(window, &x_start, &y_start); + time_start=glfwGetTime(); + scale_start=scale; + drag=0; + mouse_down =1; + } + else if (action == GLFW_RELEASE) + { mouse_down=0; + if (drag) /* end dragging */ + { hint_clear_fonts(true); + clear_cursor(); + } + else + mouse_click(); + } + } +} + +void cursor_enter_callback(GLFWwindow* window, int entered) +{ if (entered && autoreload && new_file_time()) + reload_file(); + //LOG("entered=%d auto=%d\n",entered, autoreload); +} + +int create_window(void) +{ if( !glfwInit() ) + { + herror("GLFW", "Failed to initialize GLFW\n" ); + getchar(); + return 0; + } + glfwSetErrorCallback(error_callback); + glfwWindowHint(GLFW_SAMPLES, 4); + glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); + glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); + glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // To make MacOS happy; should not be needed + glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); + + /* Open a window and create its OpenGL context */ + window = glfwCreateWindow( px_h, px_v, "HintView", NULL, NULL); + if( window == NULL ){ + herror("GLFW","Failed to open GLFW window.\n" + "If you have an Intel GPU, they are not 3.3 compatible.\n" + "Try the 2.1 version of the tutorials.\n" ); + glfwTerminate(); + return 0; + } + glfwMakeContextCurrent(window); + + glfwSetInputMode(window, GLFW_STICKY_KEYS, GL_TRUE); + glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL); + + drag_cursor = glfwCreateStandardCursor(GLFW_HRESIZE_CURSOR); + hand_cursor = glfwCreateStandardCursor(GLFW_HAND_CURSOR); + arrow_cursor = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); + + getDPI(); + + glfwSetFramebufferSizeCallback(window, framebuffer_size_callback); + glfwSetKeyCallback(window, key_callback); + glfwSetCursorEnterCallback(window,cursor_enter_callback); + glfwSetMouseButtonCallback(window, mouse_button_callback); + glfwSetCursorPosCallback(window, cursor_position_callback); + + glfwSetCursorPos(window, px_h/2, px_v/2); + + nativeInit(); + return 1; +} + +int main(int argc, char *argv[]) +{ hlog=stderr; + if (setjmp(error_exit)!=0) return 1; + if (!command_line(argc,argv)) + return 1; + if (!create_window()) + return 1; + nativeSetDark(dark); + hint_resize(px_h,px_v,scale*x_dpi,scale*y_dpi); + if (!open_file(home)) + return 1; + hint_page_home(); + if (setjmp(error_exit)==0) + do + { hint_render(); + glfwSwapBuffers(window); + glfwWaitEvents(); + } // Check if the ESC key was pressed or the window was closed + while(glfwWindowShouldClose(window) == 0 ); + nativeClear(); + glfwDestroyWindow(window); // part of glfwTerminate + glfwTerminate(); + return 0; +} + diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/main.h b/Build/source/texk/web2c/hitexdir/hintview/src/main.h new file mode 100644 index 00000000000..d42397916cb --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/main.h @@ -0,0 +1,22 @@ +#ifndef MAIN_H +#define MAIN_H + +#define VERSION "Version 1.1" + +/* colors foreground and background for day and night mode */ +#define RGB(R,G,B) (((((R)<<8)| G)<<8) | B) +#define GET_R(C) (((C)>>16)&0xFF) +#define GET_G(C) (((C)>>8)&0xFF) +#define GET_B(C) ((C)&0xFF) +#define FG_DAY RGB(0x00,0x00,0x00) /* black */ +#define BG_DAY RGB(0xFF,0xFF,0xFF) /* white */ +#define FG_NIGHT RGB(0xFF,0xFF,0xE8) /* warm white */ +#define BG_NIGHT RGB(0x00,0x00,0x08) /* dark blue */ + +#define BF_ON_DAY RGB(0xD0,0xD0,0xD0) /* lighter grey */ +#define BF_OFF_DAY RGB(0xA0,0xA0,0xA0) /* light grey */ +#define BF_ON_NIGHT RGB(0x90,0x90, 0x90) /* medium grey */ +#define BF_OFF_NIGHT RGB(0x60,0x60, 0x60) /* dark grey */ + + +#endif /*MAIN_H*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/renderOGL.c b/Build/source/texk/web2c/hitexdir/hintview/src/renderOGL.c new file mode 100644 index 00000000000..7a2488cf982 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/renderOGL.c @@ -0,0 +1,553 @@ +#include + +#include "basetypes.h" +#include "main.h" +#include "error.h" +#include +#include FT_FREETYPE_H +#include "hint.h" +#include "hfonts.h" +#include "hrender.h" +#include "rendernative.h" +#define STB_IMAGE_IMPLEMENTATION +#include "stb_image.h" + + +#ifdef DEBUG +static void checkGlError(const char *op) +{ GLint error; + while( (error= glGetError())!= GL_NO_ERROR) + MESSAGE("OGL Error after %s: 0x%x\n", op, error); +} +#else +#define checkGlError(OP) (void)0 +#endif + +#define MAX_INFOLOG 512 +static GLuint ProgramID, MatrixID, RuleID, GammaID, FGcolorID, ImageID, PictureID=0; + +#define xyID 0 +#define uvID 1 + +#define STR(X) QUOTE(X) +#define QUOTE(X) #X +static const char VertexShader[]= + "#version 330 core\n" + + /* Input */ + "layout(location = " STR(xyID) ") in vec2 vertexXY;\n" + "layout(location = " STR(uvID) ") in vec2 vertexUV;\n" + /* output */ + "out vec2 UV;\n" + /* Constants for the current triangles */ + "uniform mat4 MVP;\n" + + "void main()\n" + "{\n" + "gl_Position = MVP * vec4(vertexXY,-1.0f,1.0f);\n" + "UV = vertexUV;\n" + "}\n"; + + +static const char FragmentShader[]= + "#version 330 core\n" + + /* Input */ + "in vec2 UV;\n" + /* Output */ + "out vec4 color;\n" + /* Constants for the current triangles */ + "uniform sampler2D theTexture;\n" + "uniform vec3 FGcolor;\n" + "uniform float Gamma;\n" + "uniform int Image;\n" + + "void main()\n" + "{ vec4 texColor = texture2D( theTexture, UV );\n" + "if (Image==1) color = texColor;\n" + "else\n" + "{ color.a = pow(texColor.r,Gamma);\n" + "color.rgb = FGcolor;\n" + "}\n" + "}\n" +; + +/* The Fragment shader should do Gamma correct (GC) blending. + The theory says transform FGcolor and BGcolor to linear space + FGlin = pow(FGcolor,2.2); BGlin=pow(BGcolor,2.2); + BlendLin = FGlin*alpha + BGlin*(1-alpha); + Blend = pow(BlendLin,1/2.2); + + But, the alpha values delivered by the freetype font rasterizer + are actually brightness values! And our foreground and background + values are pretty much either black (0.0) or white (1.0) or plain + Blue (0.0,0.0,1.0) or things like that. So pow(FGcolor,2.2) will do + nothing or little to them. But we should transform the alpha to + linear space before blending. So we have + AlphaLin = pow(alpha,2.2) + BlendLin = FGcolor*alphaLin + BGcolor*(1-AlphaLin); + Blend = pow(BlendLin, 1/2.2); + The last line will be done automatically by the hardware if we specify + an GL_FRAMBUFFER_SRGB. The second last line is the normal blending + if we change the alpha value to linear. + Using this will require that images are also converted to linear textures + in sRGB space. +*/ + +static GLuint loadShader(GLenum type, char const *source) +{ GLuint shaderID; + GLint result =GL_FALSE; + + /* Compile and check vertex shader */ + shaderID = glCreateShader(type); + glShaderSource(shaderID, 1, &source , NULL); + glCompileShader(shaderID); + glGetShaderiv(shaderID, GL_COMPILE_STATUS, &result); + if (!result) + { char InfoLog[MAX_INFOLOG]; + glGetShaderInfoLog(shaderID, MAX_INFOLOG, NULL, InfoLog); + QUIT("Error compiling shader (%d): %s\n", type, InfoLog); + } + return shaderID; +} + +static void createProgram(void) +{ GLuint vertexID=loadShader(GL_VERTEX_SHADER,VertexShader); + GLuint fragmentID=loadShader(GL_FRAGMENT_SHADER,FragmentShader); + GLint result =GL_FALSE; + + + /* Create, linking, and check the program */ + ProgramID = glCreateProgram(); + glAttachShader(ProgramID, vertexID); + glAttachShader(ProgramID, fragmentID); + glLinkProgram(ProgramID); + glGetProgramiv(ProgramID, GL_LINK_STATUS, &result); + if (!result) + { char InfoLog[MAX_INFOLOG]; + glGetProgramInfoLog(ProgramID, MAX_INFOLOG, NULL, InfoLog); + QUIT("Error linking shader program: %s\n", InfoLog); + } + + glDetachShader(ProgramID, vertexID); + glDetachShader(ProgramID, fragmentID); + + glDeleteShader(vertexID); + glDeleteShader(fragmentID); + //LOG("createProgram Done\n"); +} + +/* the 4x4 Model-View-Projection Matrix */ +static GLfloat MVP[4][4] = { + {0.5, 0.0, 0.0, 0.0 }, // x scale + {0.0, 0.5, 0.0, 0.0 }, // y scale + {0.0, 0.0, 0.0, 0.0 }, // z scale + {0.0, 0.0, 0.0, 1.0 }}; // translation x, y, z + +/* The XY coordinates */ +static GLfloat xy[6][2] = { + {-1.0f, 1.0f}, // top left + {-1.0f, -1.0f}, //bot left + {1.0f, -1.0f}, // bot right + + {1.0f, 1.0f}, //top right + {-1.0f, 1.0f}, //top left + {1.0f, -1.0f} //bot right +}; + +/* The UV coordinates */ +static const GLfloat uv[6][2] = { + {0.0f, 1.0f}, //left top + {0.0f, 0.0f}, //left bot + {1.0f, 0.0f}, //right bot + + {1.0f, 1.0f}, //right top + {0.0f, 1.0f}, //left top + {1.0f, 0.0f} //right bot +}; + +static GLuint xybuffer, uvbuffer; + + +static void mkRuleTexture() /* the texture used for rules */ +{ +#define NO_TEST 1 +#if NO_TEST + GLubyte rule[1][1][1]={{{0xFF}}}; + /* for testing only */ +#else /* for testing only */ + GLubyte rule[2][2][3]={{{0}}}; + rule[0][0][0]=0xFF; // red top left + rule[0][1][0]=rule[0][1][1]=0xFF; // yellow top right + rule[1][0][2]=0xFF; // blue bottom left + rule[1][1][1]=0xFF; // green bottom right +#endif + // Create one OpenGL texture + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); // select byte alignment + checkGlError("glPixelStorei"); + + glGenTextures(1, &RuleID); + glBindTexture(GL_TEXTURE_2D, RuleID); + checkGlError("glBindTexture RuleID"); + +#if NO_TEST + glTexImage2D(GL_TEXTURE_2D, 0,GL_R8, 1, 1 , 0, GL_RED, GL_UNSIGNED_BYTE, rule); +#else + glTexImage2D(GL_TEXTURE_2D, 0,GL_RGB, 2, 2 , 0, GL_RGB, GL_UNSIGNED_BYTE, rule); +#endif + checkGlError("glTeXImage2D Rule"); + /* Set texture options */ + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + //LOG("mkRuleTexture Done\n"); +} + + +void nativeInit(void) +{ GLuint VertexArrayID; + static int glewInitialized=0; + /* Initialize GLEW */ + glewExperimental = true; /* Needed for core profile */ + if (!glewInitialized &&glewInit() != GLEW_OK) + QUIT("Failed to initialize GLEW\n"); + glewInitialized=1; + while(glGetError()!= GL_NO_ERROR) + continue; /* ignore errors in glewInit */ + + /* Create the vertex array object (VAO) */ + glGenVertexArrays(1, &VertexArrayID); + glBindVertexArray(VertexArrayID); + + createProgram(); + + MatrixID = glGetUniformLocation(ProgramID, "MVP"); + FGcolorID = glGetUniformLocation(ProgramID, "FGcolor"); + GammaID = glGetUniformLocation(ProgramID, "Gamma"); + ImageID = glGetUniformLocation(ProgramID, "Image"); + checkGlError("get IDs"); + + glGenBuffers(1, &xybuffer); + glBindBuffer(GL_ARRAY_BUFFER, xybuffer); + glBufferData(GL_ARRAY_BUFFER, sizeof(xy), xy, GL_STREAM_DRAW); + + glGenBuffers(1, &uvbuffer); + glBindBuffer(GL_ARRAY_BUFFER, uvbuffer); + glBufferData(GL_ARRAY_BUFFER, sizeof(uv), uv, GL_STATIC_DRAW); + + glUseProgram(ProgramID); + + + glUniformMatrix4fv(MatrixID, 1, GL_FALSE, &MVP[0][0]); + glUniform1f(GammaID, 1.0f/2.2f); + glUniform1i(ImageID, 0); + glUniform3f(FGcolorID, 0.0, 0.0, 0.0); // black as default foreground + glClearColor(1.0f, 1.0f, 1.0f, 0.0f); // white as default background + + /* 1rst attribute buffer : XYs */ + glEnableVertexAttribArray(xyID); + glBindBuffer(GL_ARRAY_BUFFER, xybuffer); + glBufferData(GL_ARRAY_BUFFER, sizeof(xy), xy, GL_STREAM_DRAW); + glVertexAttribPointer(xyID, 2, GL_FLOAT, GL_FALSE, 0, (void*)0); + checkGlError("glVertexAttribPointer xy"); + + /* 2nd attribute buffer : UVs */ + glEnableVertexAttribArray(uvID); + glBindBuffer(GL_ARRAY_BUFFER, uvbuffer); + glBufferData(GL_ARRAY_BUFFER, sizeof(uv), uv, GL_STATIC_READ); + glVertexAttribPointer(uvID,2,GL_FLOAT,GL_FALSE, 0, (void*)0); + checkGlError("glVertexAttribPointer uv"); + + /* Make the alpha channel work */ + glEnable(GL_BLEND); + checkGlError("glEnable BLEND"); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + checkGlError("glBlendFunc"); + glEnable(GL_MULTISAMPLE); + checkGlError("GL_MULTISAMPLE"); + glEnable(GL_FRAMEBUFFER_SRGB); + checkGlError("GL_FRAMEBUFFER_SRGB"); + + hint_clear_fonts(false); + mkRuleTexture(); + //LOG("nativeInit Done\n"); +} + + +void nativeClear(void) +{ glDeleteBuffers(1, &xybuffer); + glDeleteBuffers(1, &uvbuffer); + glDeleteProgram(ProgramID); + glDeleteTextures(1, &RuleID); + if (PictureID != 0) { + glDeleteTextures(1, &PictureID); + PictureID = 0; + } +} + +void nativeBlank(void) +{ glClear(GL_COLOR_BUFFER_BIT); + //LOG("nativeBlank Done\n"); +} + +void nativeSetGamma(double gamma) +{ glUniform1f(GammaID, 1.0/gamma); + checkGlError("glsetgamma"); +} + +static GLfloat curfr, curfg, curfb; +static uint8_t last_style=0; +static void nativeSetColors(GLfloat fr, GLfloat fg, GLfloat fb, GLfloat br, GLfloat bg, GLfloat bb) +/* set foreground and background rgb colors */ +{ + glClearColor(br, bg, bb, 1.0f); + curfr=fr; curfg=fg; curfb=fb; + glUniform3f(FGcolorID, curfr, curfg, curfb); + last_style=0; +} + +static int dark_mode; + +void nativeSetDark(int on) +{ if (on) { + int ourModeLocation = glGetUniformLocation(ProgramID, "ourMode"); + glUniform1i(ourModeLocation, true); + dark_mode = true; + nativeSetColors( + GET_R(FG_NIGHT)/255.0f, + GET_G(FG_NIGHT)/255.0f, + GET_B(FG_NIGHT)/255.0f, + GET_R(BG_NIGHT)/255.0f, + GET_G(BG_NIGHT)/255.0f, + GET_B(BG_NIGHT)/255.0f); + } else { + int ourModeLocation = glGetUniformLocation(ProgramID, "ourMode"); + glUniform1i(ourModeLocation, false); + dark_mode = false; + nativeSetColors( + GET_R(FG_DAY)/255.0f, + GET_G(FG_DAY)/255.0f, + GET_B(FG_DAY)/255.0f, + GET_R(BG_DAY)/255.0f, + GET_G(BG_DAY)/255.0f, + GET_B(BG_DAY)/255.0f); + } +} + +static float pt_h=600.0, pt_v=800.0; + +void nativeSetSize(int px_h, int px_v, double x_dpi, double y_dpi) +{ pt_h = px_h * 72.27 / x_dpi; + pt_v = px_v * 72.27 / y_dpi; + page_h = round(pt_h * (1 << 16)); + page_v = round(pt_v * (1 << 16)); + MVP[0][0]=2.0/pt_h; // x: scale to -1 to +1 + MVP[1][1]=-2.0/pt_v; // y: scale to 1 to -1 + //MVP[2][2]=0.0f; // z: don't care + MVP[3][0]=-1.0f; // x position: left + MVP[3][1]=1.0f; // y position: up + //MVP[3][2]=-1.0f; // don't care + //MVP[3][3]=1.0f; // w: identity, already there + glUniformMatrix4fv(MatrixID, 1, GL_FALSE, &MVP[0][0]); + glViewport(0, 0, px_h, px_v); +} + +void nativeRule(double x, double y, double w, double h) +/* Using GL to render a rule (a black rectangle) + Coordinates in points, origin bottom left, x and w right, y and h up + x,y position + w,h width and height + */ +{ /* Moving using the vertex buffer */ + xy[0][0]=x; xy[0][1]=y; // xy top left + xy[1][0]=x; xy[1][1]=y-h; // xy bot left 0 + xy[2][0]=x+w; xy[2][1]=y-h; // xy bot right 0 + + xy[3][0]=x+w; xy[3][1]=y; // xy top right 1 + xy[4][0]=x; xy[4][1]=y; // xy top left 1 + xy[5][0]=x+w; xy[5][1]=y-h; // xy bot right 1 + glBindTexture(GL_TEXTURE_2D, RuleID); + checkGlError("glBindTexture RuleID"); + + glBindBuffer(GL_ARRAY_BUFFER, xybuffer); + glBufferData(GL_ARRAY_BUFFER, sizeof(xy), xy, GL_STREAM_DRAW); + glDrawArrays(GL_TRIANGLES, 0, 2*3); + //LOG("nativeRule %f@%f %fx%f Done\n",x,y,w,h); +} + +void nativeImage(double x, double y, double w, double h, unsigned char *b, unsigned char *e) +/* render the image found between *b and *e at x,y with size w,h. + x, y, w, h are given in point +*/ +{ + static unsigned char *last_b=NULL; + GLenum format, internal_format; + int width, height, nrChannels; + unsigned char *data; + static unsigned char grey[4]={0,0,0,0x80}; + if (b!=last_b) + { if (PictureID != 0) { + glDeleteTextures(1, &PictureID); + PictureID = 0; + } + last_b=b; + data = stbi_load_from_memory(b, (int) (e - b), &width, &height, &nrChannels, 0); + if (data == NULL) + { + LOG("Unable to display image\n"); + data=grey; width=height=1; nrChannels=4; + } + //LOG("nativeImage %d chanels\n",nrChannels); + internal_format=GL_SRGB; + if (nrChannels == 4) + { format = GL_RGBA; internal_format=GL_SRGB_ALPHA;} + else if (nrChannels == 3) + format = GL_RGB; + else if (nrChannels == 2) + format = GL_RG; + else + format = GL_RED; + glGenTextures(1, &PictureID); + glBindTexture(GL_TEXTURE_2D, PictureID); + checkGlError("glBindTexture PictureID"); + + glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, GL_UNSIGNED_BYTE, data); + checkGlError("glTexImage2D(image)"); + if (data!=grey) stbi_image_free(data); + glGenerateMipmap(GL_TEXTURE_2D); + checkGlError("glGenerateMipmap(image)"); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + } + else + { glBindTexture(GL_TEXTURE_2D, PictureID); + checkGlError("glBindTexture old PictureID"); + } + + xy[0][0]=x; xy[0][1]=y; + xy[1][0]=x; xy[1][1]=y-h; + xy[2][0]=x+w; xy[2][1]=y-h; + + xy[3][0]=x+w; xy[3][1]=y; + xy[4][0]=x; xy[4][1]=y; + xy[5][0]=x+w; xy[5][1]=y-h; + + glBindBuffer(GL_ARRAY_BUFFER, xybuffer); + glBufferData(GL_ARRAY_BUFFER, sizeof(xy), xy, GL_STREAM_DRAW); + + glUniform1i(ImageID, 1); + glDrawArrays(GL_TRIANGLES, 0, 2*3); + glUniform1i(ImageID, 0); + +} + + +static void GLtexture(gcache_t *g) { + unsigned texID; + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + checkGlError("glPixelStorei"); + glGenTextures(1, &texID); + checkGlError("glGenTextures"); + glBindTexture(GL_TEXTURE_2D, texID); + checkGlError("glBindTexture texID"); + + + /* the first element in g->bits corresponds to the lower left pixel, + * the last element in g->bits to the upper right pixel. */ + glTexImage2D( + GL_TEXTURE_2D, + 0, + GL_R8, + g->w, + g->h, + 0, + GL_RED, + GL_UNSIGNED_BYTE, + g->bits + ); + checkGlError("glTeXImage2D Glyph"); + + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + g->GLtexture = texID; + //MESSAGE("Generated GL texture %d",g->GLtexture); +} + + + +void nativeSetPK(struct gcache_s *g) +/* the bits, w and h fields in g are already set, but the rows needs to be DWORD aligned + the bitmap is already bottom up */ +{ GLtexture(g); +} + +void nativeSetFreeType(struct gcache_s *g) +/* the bits, w and h fields in g are already set, but the rows needs to be DWORD aligned + and converted to a bottom up DIB +*/ +{GLtexture(g);} + +int round_to_pixel=1; /* makes sense only if using the native dpi, if using a multiple its of not much use*/ +double pixel_size_threshold= 72.27/150; /*round to pixel only if pixel size in pt is below threshold*/ +void nativeGlyph(double x, double dx, double y, double dy, double w, double h, struct gcache_s *g, uint8_t s) +/* given glyph g, display g at position x,y in size w,h. x, y, w, h are given in point */ +{ + if (g->GLtexture == 0) + GLtexture(g); + x=x-dx; + y=y+h-dy; + if (round_to_pixel) + { double pxs; + pxs = 72.27/xdpi; /* pixel size in point */ + if (pxs>=pixel_size_threshold) + { x=x/pxs; + x=floor(x+0.5); + x=x*pxs; + } + pxs = 72.27/ydpi; /* pixel size in point */ + if (pxs>=pixel_size_threshold) + { y=y/pxs; + y=floor(y+0.5); + y=y*pxs; + } + } + xy[0][0]=x; xy[0][1]=y; + xy[1][0]=x; xy[1][1]=y-h; + xy[2][0]=x+w; xy[2][1]=y-h; + + xy[3][0]=x+w; xy[3][1]=y; + xy[4][0]=x; xy[4][1]=y; + xy[5][0]=x+w; xy[5][1]=y-h; + + glBindTexture(GL_TEXTURE_2D, g->GLtexture); + checkGlError("glBindTexture g->GLtexture"); + + if (s!=last_style) + { if (s&FOCUS_BIT) + glUniform3f(FGcolorID, 0.0, 1.0,0.0); + else if (s&MARK_BIT) + glUniform3f(FGcolorID, 1.0, 0.0,0.0); + else if (s&LINK_BIT) + glUniform3f(FGcolorID, 0.0, 0.0,1.0); + else + glUniform3f(FGcolorID, curfr, curfg,curfb); + last_style=s; + } + glBindBuffer(GL_ARRAY_BUFFER, xybuffer); + glBufferData(GL_ARRAY_BUFFER, sizeof(xy), xy, GL_STREAM_DRAW); + glDrawArrays(GL_TRIANGLES, 0, 2*3); + //LOG("nativeGlyph %f@%f %fx%f Done\n",x,y,w,h); +} + +void nativeFreeGlyph(struct gcache_s*g) +{ if (g->GLtexture != 0) { + glDeleteTextures(1, &(g->GLtexture)); // probably not needed + g->GLtexture = 0; + } +} diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/rendernative.h b/Build/source/texk/web2c/hitexdir/hintview/src/rendernative.h new file mode 100644 index 00000000000..1a375736e77 --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/rendernative.h @@ -0,0 +1,52 @@ +/*376:*/ +#line 7624 "hint.w" + +#ifndef _RENDERNATIVE_H +#define _RENDERNATIVE_H + +/*328:*/ +#line 6556 "hint.w" + +extern void nativeInit(void); +extern void nativeClear(void); +/*:328*//*329:*/ +#line 6563 "hint.w" + +extern void nativeSetSize(int px_h,int px_v,double xdpi,double ydpi); +/*:329*//*330:*/ +#line 6568 "hint.w" + +extern void nativeSetDark(int dark); +/*:330*//*331:*/ +#line 6573 "hint.w" + +extern void nativeBlank(void); +/*:331*//*332:*/ +#line 6583 "hint.w" + +typedef struct gcache_s*gcache_s_ptr; + +extern void nativeGlyph(double x,double dx,double y,double dy,double w,double h,struct gcache_s*g,uint8_t s); +/*:332*//*333:*/ +#line 6594 "hint.w" + +void nativeRule(double x,double y,double w,double h); +/*:333*//*334:*/ +#line 6600 "hint.w" + +void nativeImage(double x,double y,double w,double h,unsigned char*istart,unsigned char*iend); +/*:334*//*335:*/ +#line 6606 "hint.w" + +extern void nativeSetPK(struct gcache_s*g); +extern void nativeSetFreeType(struct gcache_s*g); +/*:335*//*336:*/ +#line 6613 "hint.w" + +void nativeFreeGlyph(struct gcache_s*g); +/*:336*/ +#line 7628 "hint.w" + + +#endif +/*:376*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/stb_image.h b/Build/source/texk/web2c/hitexdir/hintview/src/stb_image.h new file mode 100644 index 00000000000..196dfd5cc6e --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/stb_image.h @@ -0,0 +1,7559 @@ +/* stb_image - v2.23 - public domain image loader - http://nothings.org/stb + no warranty implied; use at your own risk + + Do this: + #define STB_IMAGE_IMPLEMENTATION + before you include this file in *one* C or C++ file to create the implementation. + + // i.e. it should look like this: + #include ... + #include ... + #include ... + #define STB_IMAGE_IMPLEMENTATION + #include "stb_image.h" + + You can #define STBI_ASSERT(x) before the #include to avoid using assert.h. + And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free + + + QUICK NOTES: + Primarily of interest to game developers and other people who can + avoid problematic images and only need the trivial interface + + JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) + PNG 1/2/4/8/16-bit-per-channel + + TGA (not sure what subset, if a subset) + BMP non-1bpp, non-RLE + PSD (composited view only, no extra channels, 8/16 bit-per-channel) + + GIF (*comp always reports as 4-channel) + HDR (radiance rgbE format) + PIC (Softimage PIC) + PNM (PPM and PGM binary only) + + Animated GIF still needs a proper API, but here's one way to do it: + http://gist.github.com/urraka/685d9a6340b26b830d49 + + - decode from memory or through FILE (define STBI_NO_STDIO to remove code) + - decode from arbitrary I/O callbacks + - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON) + + Full documentation under "DOCUMENTATION" below. + + +LICENSE + + See end of file for license information. + +RECENT REVISION HISTORY: + + 2.23 (2019-08-11) fix clang static analysis warning + 2.22 (2019-03-04) gif fixes, fix warnings + 2.21 (2019-02-25) fix typo in comment + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings + 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes + 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 + RGB-format JPEG; remove white matting in PSD; + allocate large structures on the stack; + correct channel count for PNG & BMP + 2.10 (2016-01-22) avoid warning introduced in 2.09 + 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED + + See end of file for full revision history. + + + ============================ Contributors ========================= + + Image formats Extensions, features + Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info) + Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info) + Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG) + Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks) + Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG) + Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip) + Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) + github:urraka (animated gif) Junggon Kim (PNM comments) + Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) + socks-the-fox (16-bit PNG) + Jeremy Sawicki (handle all ImageNet JPGs) + Optimizations & bugfixes Mikhail Morozov (1-bit BMP) + Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) + Arseny Kapoulkine + John-Mark Allen + Carmelo J Fdez-Aguera + + Bug & warning fixes + Marc LeBlanc David Woo Guillaume George Martins Mozeiko + Christpher Lloyd Jerry Jansson Joseph Thomson Phil Jordan + Dave Moore Roy Eltham Hayaki Saito Nathan Reed + Won Chun Luke Graham Johan Duparc Nick Verigakis + the Horde3D community Thomas Ruf Ronny Chevalier github:rlyeh + Janez Zemva John Bartholomew Michal Cichon github:romigrou + Jonathan Blow Ken Hamada Tero Hanninen github:svdijk + Laurent Gomila Cort Stratton Sergio Gonzalez github:snagar + Aruelien Pocheville Thibault Reuille Cass Everitt github:Zelex + Ryamond Barbiero Paul Du Bois Engin Manap github:grim210 + Aldo Culquicondor Philipp Wiesemann Dale Weiler github:sammyhw + Oriol Ferrer Mesia Josh Tobin Matthew Gregan github:phprus + Julian Raschke Gregory Mullen Baldur Karlsson github:poppolopoppo + Christian Floisand Kevin Schmidt JR Smith github:darealshinji + Blazej Dariusz Roszkowski github:Michaelangel007 +*/ + +#ifndef STBI_INCLUDE_STB_IMAGE_H +#define STBI_INCLUDE_STB_IMAGE_H + +// DOCUMENTATION +// +// Limitations: +// - no 12-bit-per-channel JPEG +// - no JPEGs with arithmetic coding +// - GIF always returns *comp=4 +// +// Basic usage (see HDR discussion below for HDR usage): +// int x,y,n; +// unsigned char *data = stbi_load(filename, &x, &y, &n, 0); +// // ... process data if not NULL ... +// // ... x = width, y = height, n = # 8-bit components per pixel ... +// // ... replace '0' with '1'..'4' to force that many components per pixel +// // ... but 'n' will always be the number that it would have been if you said 0 +// stbi_image_free(data) +// +// Standard parameters: +// int *x -- outputs image width in pixels +// int *y -- outputs image height in pixels +// int *channels_in_file -- outputs # of image components in image file +// int desired_channels -- if non-zero, # of image components requested in result +// +// The return value from an image loader is an 'unsigned char *' which points +// to the pixel data, or NULL on an allocation failure or if the image is +// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels, +// with each pixel consisting of N interleaved 8-bit components; the first +// pixel pointed to is top-left-most in the image. There is no padding between +// image scanlines or between pixels, regardless of format. The number of +// components N is 'desired_channels' if desired_channels is non-zero, or +// *channels_in_file otherwise. If desired_channels is non-zero, +// *channels_in_file has the number of components that _would_ have been +// output otherwise. E.g. if you set desired_channels to 4, you will always +// get RGBA output, but you can check *channels_in_file to see if it's trivially +// opaque because e.g. there were only 3 channels in the source image. +// +// An output image with N components has the following components interleaved +// in this order in each pixel: +// +// N=#comp components +// 1 grey +// 2 grey, alpha +// 3 red, green, blue +// 4 red, green, blue, alpha +// +// If image loading fails for any reason, the return value will be NULL, +// and *x, *y, *channels_in_file will be unchanged. The function +// stbi_failure_reason() can be queried for an extremely brief, end-user +// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS +// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly +// more user-friendly ones. +// +// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized. +// +// =========================================================================== +// +// UNICODE: +// +// If compiling for Windows and you wish to use Unicode filenames, compile +// with +// #define STBI_WINDOWS_UTF8 +// and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert +// Windows wchar_t filenames to utf8. +// +// =========================================================================== +// +// Philosophy +// +// stb libraries are designed with the following priorities: +// +// 1. easy to use +// 2. easy to maintain +// 3. good performance +// +// Sometimes I let "good performance" creep up in priority over "easy to maintain", +// and for best performance I may provide less-easy-to-use APIs that give higher +// performance, in addition to the easy-to-use ones. Nevertheless, it's important +// to keep in mind that from the standpoint of you, a client of this library, +// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all. +// +// Some secondary priorities arise directly from the first two, some of which +// provide more explicit reasons why performance can't be emphasized. +// +// - Portable ("ease of use") +// - Small source code footprint ("easy to maintain") +// - No dependencies ("ease of use") +// +// =========================================================================== +// +// I/O callbacks +// +// I/O callbacks allow you to read from arbitrary sources, like packaged +// files or some other source. Data read from callbacks are processed +// through a small internal buffer (currently 128 bytes) to try to reduce +// overhead. +// +// The three functions you must define are "read" (reads some bytes of data), +// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end). +// +// =========================================================================== +// +// SIMD support +// +// The JPEG decoder will try to automatically use SIMD kernels on x86 when +// supported by the compiler. For ARM Neon support, you must explicitly +// request it. +// +// (The old do-it-yourself SIMD API is no longer supported in the current +// code.) +// +// On x86, SSE2 will automatically be used when available based on a run-time +// test; if not, the generic C versions are used as a fall-back. On ARM targets, +// the typical path is to have separate builds for NEON and non-NEON devices +// (at least this is true for iOS and Android). Therefore, the NEON support is +// toggled by a build flag: define STBI_NEON to get NEON loops. +// +// If for some reason you do not want to use any of SIMD code, or if +// you have issues compiling it, you can disable it entirely by +// defining STBI_NO_SIMD. +// +// =========================================================================== +// +// HDR image support (disable by defining STBI_NO_HDR) +// +// stb_image supports loading HDR images in general, and currently the Radiance +// .HDR file format specifically. You can still load any file through the existing +// interface; if you attempt to load an HDR file, it will be automatically remapped +// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1; +// both of these constants can be reconfigured through this interface: +// +// stbi_hdr_to_ldr_gamma(2.2f); +// stbi_hdr_to_ldr_scale(1.0f); +// +// (note, do not use _inverse_ constants; stbi_image will invert them +// appropriately). +// +// Additionally, there is a new, parallel interface for loading files as +// (linear) floats to preserve the full dynamic range: +// +// float *data = stbi_loadf(filename, &x, &y, &n, 0); +// +// If you load LDR images through this interface, those images will +// be promoted to floating point values, run through the inverse of +// constants corresponding to the above: +// +// stbi_ldr_to_hdr_scale(1.0f); +// stbi_ldr_to_hdr_gamma(2.2f); +// +// Finally, given a filename (or an open file or memory block--see header +// file for details) containing image data, you can query for the "most +// appropriate" interface to use (that is, whether the image is HDR or +// not), using: +// +// stbi_is_hdr(char *filename); +// +// =========================================================================== +// +// iPhone PNG support: +// +// By default we convert iphone-formatted PNGs back to RGB, even though +// they are internally encoded differently. You can disable this conversion +// by calling stbi_convert_iphone_png_to_rgb(0), in which case +// you will always just get the native iphone "format" through (which +// is BGR stored in RGB). +// +// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per +// pixel to remove any premultiplied alpha *only* if the image file explicitly +// says there's premultiplied data (currently only happens in iPhone images, +// and only if iPhone convert-to-rgb processing is on). +// +// =========================================================================== +// +// ADDITIONAL CONFIGURATION +// +// - You can suppress implementation of any of the decoders to reduce +// your code footprint by #defining one or more of the following +// symbols before creating the implementation. +// +// STBI_NO_JPEG +// STBI_NO_PNG +// STBI_NO_BMP +// STBI_NO_PSD +// STBI_NO_TGA +// STBI_NO_GIF +// STBI_NO_HDR +// STBI_NO_PIC +// STBI_NO_PNM (.ppm and .pgm) +// +// - You can request *only* certain decoders and suppress all other ones +// (this will be more forward-compatible, as addition of new decoders +// doesn't require you to disable them explicitly): +// +// STBI_ONLY_JPEG +// STBI_ONLY_PNG +// STBI_ONLY_BMP +// STBI_ONLY_PSD +// STBI_ONLY_TGA +// STBI_ONLY_GIF +// STBI_ONLY_HDR +// STBI_ONLY_PIC +// STBI_ONLY_PNM (.ppm and .pgm) +// +// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still +// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB +// + + +#ifndef STBI_NO_STDIO +#include +#endif // STBI_NO_STDIO + +#define STBI_VERSION 1 + +enum +{ + STBI_default = 0, // only used for desired_channels + + STBI_grey = 1, + STBI_grey_alpha = 2, + STBI_rgb = 3, + STBI_rgb_alpha = 4 +}; + +#include +typedef unsigned char stbi_uc; +typedef unsigned short stbi_us; + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef STBIDEF +#ifdef STB_IMAGE_STATIC +#define STBIDEF static +#else +#define STBIDEF extern +#endif +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// PRIMARY API - works on images of any type +// + +// +// load image by filename, open file, or memory buffer +// + +typedef struct +{ + int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read + void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative + int (*eof) (void *user); // returns nonzero if we are at end of file/data +} stbi_io_callbacks; + +//////////////////////////////////// +// +// 8-bits-per-channel interface +// + +STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +// for stbi_load_from_file, file pointer is left pointing immediately after image +#endif + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +#endif + +#ifdef STBI_WINDOWS_UTF8 +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); +#endif + +//////////////////////////////////// +// +// 16-bits-per-channel interface +// + +STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +#endif + +//////////////////////////////////// +// +// float-per-channel interface +// +#ifndef STBI_NO_LINEAR + STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + + #ifndef STBI_NO_STDIO + STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); + #endif +#endif + +#ifndef STBI_NO_HDR + STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); + STBIDEF void stbi_hdr_to_ldr_scale(float scale); +#endif // STBI_NO_HDR + +#ifndef STBI_NO_LINEAR + STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); + STBIDEF void stbi_ldr_to_hdr_scale(float scale); +#endif // STBI_NO_LINEAR + +// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename); +STBIDEF int stbi_is_hdr_from_file(FILE *f); +#endif // STBI_NO_STDIO + + +// get a VERY brief reason for failure +// NOT THREADSAFE +STBIDEF const char *stbi_failure_reason (void); + +// free the loaded image -- this is just free() +STBIDEF void stbi_image_free (void *retval_from_stbi_load); + +// get image dimensions & components without fully decoding +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit (char const *filename); +STBIDEF int stbi_is_16_bit_from_file(FILE *f); +#endif + + + +// for image formats that explicitly notate that they have premultiplied alpha, +// we just return the colors as stored in the file. set this flag to force +// unpremultiplication. results are undefined if the unpremultiply overflow. +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply); + +// indicate whether we should process iphone images back to canonical format, +// or just pass them through "as-is" +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert); + +// flip the image vertically, so the first pixel in the output array is the bottom left +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip); + +// ZLIB client - used by PNG, available for other purposes + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); +STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + +STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + + +#ifdef __cplusplus +} +#endif + +// +// +//// end header file ///////////////////////////////////////////////////// +#endif // STBI_INCLUDE_STB_IMAGE_H + +#ifdef STB_IMAGE_IMPLEMENTATION + +#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ + || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ + || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ + || defined(STBI_ONLY_ZLIB) + #ifndef STBI_ONLY_JPEG + #define STBI_NO_JPEG + #endif + #ifndef STBI_ONLY_PNG + #define STBI_NO_PNG + #endif + #ifndef STBI_ONLY_BMP + #define STBI_NO_BMP + #endif + #ifndef STBI_ONLY_PSD + #define STBI_NO_PSD + #endif + #ifndef STBI_ONLY_TGA + #define STBI_NO_TGA + #endif + #ifndef STBI_ONLY_GIF + #define STBI_NO_GIF + #endif + #ifndef STBI_ONLY_HDR + #define STBI_NO_HDR + #endif + #ifndef STBI_ONLY_PIC + #define STBI_NO_PIC + #endif + #ifndef STBI_ONLY_PNM + #define STBI_NO_PNM + #endif +#endif + +#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) +#define STBI_NO_ZLIB +#endif + + +#include +#include // ptrdiff_t on osx +#include +#include +#include + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +#include // ldexp, pow +#endif + +#ifndef STBI_NO_STDIO +#include +#endif + +#ifndef STBI_ASSERT +#include +#define STBI_ASSERT(x) assert(x) +#endif + +#ifdef __cplusplus +#define STBI_EXTERN extern "C" +#else +#define STBI_EXTERN extern +#endif + + +#ifndef _MSC_VER + #ifdef __cplusplus + #define stbi_inline inline + #else + #define stbi_inline + #endif +#else + #define stbi_inline __forceinline +#endif + + +#ifdef _MSC_VER +typedef unsigned short stbi__uint16; +typedef signed short stbi__int16; +typedef unsigned int stbi__uint32; +typedef signed int stbi__int32; +#else +#include +typedef uint16_t stbi__uint16; +typedef int16_t stbi__int16; +typedef uint32_t stbi__uint32; +typedef int32_t stbi__int32; +#endif + +// should produce compiler error if size is wrong +typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; + +#ifdef _MSC_VER +#define STBI_NOTUSED(v) (void)(v) +#else +#define STBI_NOTUSED(v) (void)sizeof(v) +#endif + +#ifdef _MSC_VER +#define STBI_HAS_LROTL +#endif + +#ifdef STBI_HAS_LROTL + #define stbi_lrot(x,y) _lrotl(x,y) +#else + #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (32 - (y)))) +#endif + +#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) +// ok +#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED) +// ok +#else +#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)." +#endif + +#ifndef STBI_MALLOC +#define STBI_MALLOC(sz) malloc(sz) +#define STBI_REALLOC(p,newsz) realloc(p,newsz) +#define STBI_FREE(p) free(p) +#endif + +#ifndef STBI_REALLOC_SIZED +#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) +#endif + +// x86/x64 detection +#if defined(__x86_64__) || defined(_M_X64) +#define STBI__X64_TARGET +#elif defined(__i386) || defined(_M_IX86) +#define STBI__X86_TARGET +#endif + +#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD) +// gcc doesn't support sse2 intrinsics unless you compile with -msse2, +// which in turn means it gets to use SSE2 everywhere. This is unfortunate, +// but previous attempts to provide the SSE2 functions with runtime +// detection caused numerous issues. The way architecture extensions are +// exposed in GCC/Clang is, sadly, not really suited for one-file libs. +// New behavior: if compiled with -msse2, we use SSE2 without any +// detection; if not, we don't use it at all. +#define STBI_NO_SIMD +#endif + +#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD) +// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET +// +// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the +// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant. +// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not +// simultaneously enabling "-mstackrealign". +// +// See https://github.com/nothings/stb/issues/81 for more information. +// +// So default to no SSE2 on 32-bit MinGW. If you've read this far and added +// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2. +#define STBI_NO_SIMD +#endif + +#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) +#define STBI_SSE2 +#include + +#ifdef _MSC_VER + +#if _MSC_VER >= 1400 // not VC6 +#include // __cpuid +static int stbi__cpuid3(void) +{ + int info[4]; + __cpuid(info,1); + return info[3]; +} +#else +static int stbi__cpuid3(void) +{ + int res; + __asm { + mov eax,1 + cpuid + mov res,edx + } + return res; +} +#endif + +#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + int info3 = stbi__cpuid3(); + return ((info3 >> 26) & 1) != 0; +} +#endif + +#else // assume GCC-style if not VC++ +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + // If we're even attempting to compile this on GCC/Clang, that means + // -msse2 is on, which means the compiler is allowed to use SSE2 + // instructions at will, and so are we. + return 1; +} +#endif + +#endif +#endif + +// ARM NEON +#if defined(STBI_NO_SIMD) && defined(STBI_NEON) +#undef STBI_NEON +#endif + +#ifdef STBI_NEON +#include +// assume GCC or Clang on ARM targets +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) +#endif + +#ifndef STBI_SIMD_ALIGN +#define STBI_SIMD_ALIGN(type, name) type name +#endif + +/////////////////////////////////////////////// +// +// stbi__context struct and start_xxx functions + +// stbi__context structure is our basic context used by all images, so it +// contains all the IO context, plus some basic image information +typedef struct +{ + stbi__uint32 img_x, img_y; + int img_n, img_out_n; + + stbi_io_callbacks io; + void *io_user_data; + + int read_from_callbacks; + int buflen; + stbi_uc buffer_start[128]; + + stbi_uc *img_buffer, *img_buffer_end; + stbi_uc *img_buffer_original, *img_buffer_original_end; +} stbi__context; + + +static void stbi__refill_buffer(stbi__context *s); + +// initialize a memory-decode context +static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) +{ + s->io.read = NULL; + s->read_from_callbacks = 0; + s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; + s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; +} + +// initialize a callback-based context +static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) +{ + s->io = *c; + s->io_user_data = user; + s->buflen = sizeof(s->buffer_start); + s->read_from_callbacks = 1; + s->img_buffer_original = s->buffer_start; + stbi__refill_buffer(s); + s->img_buffer_original_end = s->img_buffer_end; +} + +#ifndef STBI_NO_STDIO + +static int stbi__stdio_read(void *user, char *data, int size) +{ + return (int) fread(data,1,size,(FILE*) user); +} + +static void stbi__stdio_skip(void *user, int n) +{ + fseek((FILE*) user, n, SEEK_CUR); +} + +static int stbi__stdio_eof(void *user) +{ + return feof((FILE*) user); +} + +static stbi_io_callbacks stbi__stdio_callbacks = +{ + stbi__stdio_read, + stbi__stdio_skip, + stbi__stdio_eof, +}; + +static void stbi__start_file(stbi__context *s, FILE *f) +{ + stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); +} + +//static void stop_file(stbi__context *s) { } + +#endif // !STBI_NO_STDIO + +static void stbi__rewind(stbi__context *s) +{ + // conceptually rewind SHOULD rewind to the beginning of the stream, + // but we just rewind to the beginning of the initial buffer, because + // we only use it after doing 'test', which only ever looks at at most 92 bytes + s->img_buffer = s->img_buffer_original; + s->img_buffer_end = s->img_buffer_original_end; +} + +enum +{ + STBI_ORDER_RGB, + STBI_ORDER_BGR +}; + +typedef struct +{ + int bits_per_channel; + int num_channels; + int channel_order; +} stbi__result_info; + +#ifndef STBI_NO_JPEG +static int stbi__jpeg_test(stbi__context *s); +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNG +static int stbi__png_test(stbi__context *s); +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__png_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_BMP +static int stbi__bmp_test(stbi__context *s); +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_TGA +static int stbi__tga_test(stbi__context *s); +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s); +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__psd_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_HDR +static int stbi__hdr_test(stbi__context *s); +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_test(stbi__context *s); +static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_GIF +static int stbi__gif_test(stbi__context *s); +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNM +static int stbi__pnm_test(stbi__context *s); +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +// this is not threadsafe +static const char *stbi__g_failure_reason; + +STBIDEF const char *stbi_failure_reason(void) +{ + return stbi__g_failure_reason; +} + +static int stbi__err(const char *str) +{ + stbi__g_failure_reason = str; + return 0; +} + +static void *stbi__malloc(size_t size) +{ + return STBI_MALLOC(size); +} + +// stb_image uses ints pervasively, including for offset calculations. +// therefore the largest decoded image size we can support with the +// current code, even on 64-bit targets, is INT_MAX. this is not a +// significant limitation for the intended use case. +// +// we do, however, need to make sure our size calculations don't +// overflow. hence a few helper functions for size calculations that +// multiply integers together, making sure that they're non-negative +// and no overflow occurs. + +// return 1 if the sum is valid, 0 on overflow. +// negative terms are considered invalid. +static int stbi__addsizes_valid(int a, int b) +{ + if (b < 0) return 0; + // now 0 <= b <= INT_MAX, hence also + // 0 <= INT_MAX - b <= INTMAX. + // And "a + b <= INT_MAX" (which might overflow) is the + // same as a <= INT_MAX - b (no overflow) + return a <= INT_MAX - b; +} + +// returns 1 if the product is valid, 0 on overflow. +// negative factors are considered invalid. +static int stbi__mul2sizes_valid(int a, int b) +{ + if (a < 0 || b < 0) return 0; + if (b == 0) return 1; // mul-by-0 is always safe + // portable way to check for no overflows in a*b + return a <= INT_MAX/b; +} + +// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow +static int stbi__mad2sizes_valid(int a, int b, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); +} + +// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow +static int stbi__mad3sizes_valid(int a, int b, int c, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__addsizes_valid(a*b*c, add); +} + +// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); +} +#endif + +// mallocs with size overflow checking +static void *stbi__malloc_mad2(int a, int b, int add) +{ + if (!stbi__mad2sizes_valid(a, b, add)) return NULL; + return stbi__malloc(a*b + add); +} + +static void *stbi__malloc_mad3(int a, int b, int c, int add) +{ + if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; + return stbi__malloc(a*b*c + add); +} + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) +{ + if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; + return stbi__malloc(a*b*c*d + add); +} +#endif + +// stbi__err - error +// stbi__errpf - error returning pointer to float +// stbi__errpuc - error returning pointer to unsigned char + +#ifdef STBI_NO_FAILURE_STRINGS + #define stbi__err(x,y) 0 +#elif defined(STBI_FAILURE_USERMSG) + #define stbi__err(x,y) stbi__err(y) +#else + #define stbi__err(x,y) stbi__err(x) +#endif + +#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) +#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) + +STBIDEF void stbi_image_free(void *retval_from_stbi_load) +{ + STBI_FREE(retval_from_stbi_load); +} + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); +#endif + +#ifndef STBI_NO_HDR +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); +#endif + +static int stbi__vertically_flip_on_load = 0; + +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load = flag_true_if_should_flip; +} + +static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields + ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed + ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order + ri->num_channels = 0; + + #ifndef STBI_NO_JPEG + if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNG + if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_BMP + if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_GIF + if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PSD + if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); + #endif + #ifndef STBI_NO_PIC + if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNM + if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); + return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); + } + #endif + + #ifndef STBI_NO_TGA + // test tga last because it's a crappy test! + if (stbi__tga_test(s)) + return stbi__tga_load(s,x,y,comp,req_comp, ri); + #endif + + return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); +} + +static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi_uc *reduced; + + reduced = (stbi_uc *) stbi__malloc(img_len); + if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling + + STBI_FREE(orig); + return reduced; +} + +static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi__uint16 *enlarged; + + enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); + if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff + + STBI_FREE(orig); + return enlarged; +} + +static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) +{ + int row; + size_t bytes_per_row = (size_t)w * bytes_per_pixel; + stbi_uc temp[2048]; + stbi_uc *bytes = (stbi_uc *)image; + + for (row = 0; row < (h>>1); row++) { + stbi_uc *row0 = bytes + row*bytes_per_row; + stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; + // swap row0 with row1 + size_t bytes_left = bytes_per_row; + while (bytes_left) { + size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); + memcpy(temp, row0, bytes_copy); + memcpy(row0, row1, bytes_copy); + memcpy(row1, temp, bytes_copy); + row0 += bytes_copy; + row1 += bytes_copy; + bytes_left -= bytes_copy; + } + } +} + +#ifndef STBI_NO_GIF +static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) +{ + int slice; + int slice_size = w * h * bytes_per_pixel; + + stbi_uc *bytes = (stbi_uc *)image; + for (slice = 0; slice < z; ++slice) { + stbi__vertical_flip(bytes, w, h, bytes_per_pixel); + bytes += slice_size; + } +} +#endif + +static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); + + if (result == NULL) + return NULL; + + if (ri.bits_per_channel != 8) { + STBI_ASSERT(ri.bits_per_channel == 16); + result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 8; + } + + // @TODO: move stbi__convert_format to here + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); + } + + return (unsigned char *) result; +} + +static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); + + if (result == NULL) + return NULL; + + if (ri.bits_per_channel != 16) { + STBI_ASSERT(ri.bits_per_channel == 8); + result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 16; + } + + // @TODO: move stbi__convert_format16 to here + // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); + } + + return (stbi__uint16 *) result; +} + +#if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR) +static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) +{ + if (stbi__vertically_flip_on_load && result != NULL) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); + } +} +#endif + +#ifndef STBI_NO_STDIO + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); +STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); +#endif + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) +{ + return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); +} +#endif + +static FILE *stbi__fopen(char const *filename, char const *mode) +{ + FILE *f; +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) + wchar_t wMode[64]; + wchar_t wFilename[1024]; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename))) + return 0; + + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode))) + return 0; + +#if _MSC_VER >= 1400 + if (0 != _wfopen_s(&f, wFilename, wMode)) + f = 0; +#else + f = _wfopen(wFilename, wMode); +#endif + +#elif defined(_MSC_VER) && _MSC_VER >= 1400 + if (0 != fopen_s(&f, filename, mode)) + f=0; +#else + f = fopen(filename, mode); +#endif + return f; +} + + +STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + unsigned char *result; + if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__uint16 *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + stbi__uint16 *result; + if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file_16(f,x,y,comp,req_comp); + fclose(f); + return result; +} + + +#endif //!STBI_NO_STDIO + +STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_mem(&s,buffer,len); + + result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); + if (stbi__vertically_flip_on_load) { + stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); + } + + return result; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *data; + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + stbi__result_info ri; + float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); + if (hdr_data) + stbi__float_postprocess(hdr_data,x,y,comp,req_comp); + return hdr_data; + } + #endif + data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); + if (data) + return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); + return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); +} + +STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_STDIO +STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + float *result; + FILE *f = stbi__fopen(filename, "rb"); + if (!f) return stbi__errpf("can't fopen", "Unable to open file"); + result = stbi_loadf_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_file(&s,f); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} +#endif // !STBI_NO_STDIO + +#endif // !STBI_NO_LINEAR + +// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is +// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always +// reports false! + +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(buffer); + STBI_NOTUSED(len); + return 0; + #endif +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result=0; + if (f) { + result = stbi_is_hdr_from_file(f); + fclose(f); + } + return result; +} + +STBIDEF int stbi_is_hdr_from_file(FILE *f) +{ + #ifndef STBI_NO_HDR + long pos = ftell(f); + int res; + stbi__context s; + stbi__start_file(&s,f); + res = stbi__hdr_test(&s); + fseek(f, pos, SEEK_SET); + return res; + #else + STBI_NOTUSED(f); + return 0; + #endif +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(clbk); + STBI_NOTUSED(user); + return 0; + #endif +} + +#ifndef STBI_NO_LINEAR +static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; + +STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } +STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } +#endif + +static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; + +STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } +STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } + + +////////////////////////////////////////////////////////////////////////////// +// +// Common code used by all image loaders +// + +enum +{ + STBI__SCAN_load=0, + STBI__SCAN_type, + STBI__SCAN_header +}; + +static void stbi__refill_buffer(stbi__context *s) +{ + int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); + if (n == 0) { + // at end of file, treat same as if from memory, but need to handle case + // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file + s->read_from_callbacks = 0; + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start+1; + *s->img_buffer = 0; + } else { + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start + n; + } +} + +stbi_inline static stbi_uc stbi__get8(stbi__context *s) +{ + if (s->img_buffer < s->img_buffer_end) + return *s->img_buffer++; + if (s->read_from_callbacks) { + stbi__refill_buffer(s); + return *s->img_buffer++; + } + return 0; +} + +stbi_inline static int stbi__at_eof(stbi__context *s) +{ + if (s->io.read) { + if (!(s->io.eof)(s->io_user_data)) return 0; + // if feof() is true, check if buffer = end + // special case: we've only got the special 0 character at the end + if (s->read_from_callbacks == 0) return 1; + } + + return s->img_buffer >= s->img_buffer_end; +} + +static void stbi__skip(stbi__context *s, int n) +{ + if (n < 0) { + s->img_buffer = s->img_buffer_end; + return; + } + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + s->img_buffer = s->img_buffer_end; + (s->io.skip)(s->io_user_data, n - blen); + return; + } + } + s->img_buffer += n; +} + +static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) +{ + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + int res, count; + + memcpy(buffer, s->img_buffer, blen); + + count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); + res = (count == (n-blen)); + s->img_buffer = s->img_buffer_end; + return res; + } + } + + if (s->img_buffer+n <= s->img_buffer_end) { + memcpy(buffer, s->img_buffer, n); + s->img_buffer += n; + return 1; + } else + return 0; +} + +static int stbi__get16be(stbi__context *s) +{ + int z = stbi__get8(s); + return (z << 8) + stbi__get8(s); +} + +static stbi__uint32 stbi__get32be(stbi__context *s) +{ + stbi__uint32 z = stbi__get16be(s); + return (z << 16) + stbi__get16be(s); +} + +#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) +// nothing +#else +static int stbi__get16le(stbi__context *s) +{ + int z = stbi__get8(s); + return z + (stbi__get8(s) << 8); +} +#endif + +#ifndef STBI_NO_BMP +static stbi__uint32 stbi__get32le(stbi__context *s) +{ + stbi__uint32 z = stbi__get16le(s); + return z + (stbi__get16le(s) << 16); +} +#endif + +#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings + + +////////////////////////////////////////////////////////////////////////////// +// +// generic converter from built-in img_n to req_comp +// individual types do this automatically as much as possible (e.g. jpeg +// does all cases internally since it needs to colorspace convert anyway, +// and it never has alpha, so very few cases ). png can automatically +// interleave an alpha=255 channel, but falls back to this for other cases +// +// assume data buffer is malloced, so malloc a new one and free that one +// only failure mode is malloc failing + +static stbi_uc stbi__compute_y(int r, int g, int b) +{ + return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); +} + +static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + unsigned char *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); + if (good == NULL) { + STBI_FREE(data); + return stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + unsigned char *src = data + j * x * img_n ; + unsigned char *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} + +static stbi__uint16 stbi__compute_y_16(int r, int g, int b) +{ + return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); +} + +static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + stbi__uint16 *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); + if (good == NULL) { + STBI_FREE(data); + return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + stbi__uint16 *src = data + j * x * img_n ; + stbi__uint16 *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) +{ + int i,k,n; + float *output; + if (!data) return NULL; + output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); + } + } + if (n < comp) { + for (i=0; i < x*y; ++i) { + output[i*comp + n] = data[i*comp + n]/255.0f; + } + } + STBI_FREE(data); + return output; +} +#endif + +#ifndef STBI_NO_HDR +#define stbi__float2int(x) ((int) (x)) +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) +{ + int i,k,n; + stbi_uc *output; + if (!data) return NULL; + output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + if (k < comp) { + float z = data[i*comp+k] * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + } + STBI_FREE(data); + return output; +} +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// "baseline" JPEG/JFIF decoder +// +// simple implementation +// - doesn't support delayed output of y-dimension +// - simple interface (only one output format: 8-bit interleaved RGB) +// - doesn't try to recover corrupt jpegs +// - doesn't allow partial loading, loading multiple at once +// - still fast on x86 (copying globals into locals doesn't help x86) +// - allocates lots of intermediate memory (full size of all components) +// - non-interleaved case requires this anyway +// - allows good upsampling (see next) +// high-quality +// - upsampled channels are bilinearly interpolated, even across blocks +// - quality integer IDCT derived from IJG's 'slow' +// performance +// - fast huffman; reasonable integer IDCT +// - some SIMD kernels for common paths on targets with SSE2/NEON +// - uses a lot of intermediate memory, could cache poorly + +#ifndef STBI_NO_JPEG + +// huffman decoding acceleration +#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache + +typedef struct +{ + stbi_uc fast[1 << FAST_BITS]; + // weirdly, repacking this into AoS is a 10% speed loss, instead of a win + stbi__uint16 code[256]; + stbi_uc values[256]; + stbi_uc size[257]; + unsigned int maxcode[18]; + int delta[17]; // old 'firstsymbol' - old 'firstcode' +} stbi__huffman; + +typedef struct +{ + stbi__context *s; + stbi__huffman huff_dc[4]; + stbi__huffman huff_ac[4]; + stbi__uint16 dequant[4][64]; + stbi__int16 fast_ac[4][1 << FAST_BITS]; + +// sizes for components, interleaved MCUs + int img_h_max, img_v_max; + int img_mcu_x, img_mcu_y; + int img_mcu_w, img_mcu_h; + +// definition of jpeg image component + struct + { + int id; + int h,v; + int tq; + int hd,ha; + int dc_pred; + + int x,y,w2,h2; + stbi_uc *data; + void *raw_data, *raw_coeff; + stbi_uc *linebuf; + short *coeff; // progressive only + int coeff_w, coeff_h; // number of 8x8 coefficient blocks + } img_comp[4]; + + stbi__uint32 code_buffer; // jpeg entropy-coded buffer + int code_bits; // number of valid bits + unsigned char marker; // marker seen while filling entropy buffer + int nomore; // flag if we saw a marker so must stop + + int progressive; + int spec_start; + int spec_end; + int succ_high; + int succ_low; + int eob_run; + int jfif; + int app14_color_transform; // Adobe APP14 tag + int rgb; + + int scan_n, order[4]; + int restart_interval, todo; + +// kernels + void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); + void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); + stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); +} stbi__jpeg; + +static int stbi__build_huffman(stbi__huffman *h, int *count) +{ + int i,j,k=0; + unsigned int code; + // build size list for each symbol (from JPEG spec) + for (i=0; i < 16; ++i) + for (j=0; j < count[i]; ++j) + h->size[k++] = (stbi_uc) (i+1); + h->size[k] = 0; + + // compute actual symbols (from jpeg spec) + code = 0; + k = 0; + for(j=1; j <= 16; ++j) { + // compute delta to add to code to compute symbol id + h->delta[j] = k - code; + if (h->size[k] == j) { + while (h->size[k] == j) + h->code[k++] = (stbi__uint16) (code++); + if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); + } + // compute largest code + 1 for this size, preshifted as needed later + h->maxcode[j] = code << (16-j); + code <<= 1; + } + h->maxcode[j] = 0xffffffff; + + // build non-spec acceleration table; 255 is flag for not-accelerated + memset(h->fast, 255, 1 << FAST_BITS); + for (i=0; i < k; ++i) { + int s = h->size[i]; + if (s <= FAST_BITS) { + int c = h->code[i] << (FAST_BITS-s); + int m = 1 << (FAST_BITS-s); + for (j=0; j < m; ++j) { + h->fast[c+j] = (stbi_uc) i; + } + } + } + return 1; +} + +// build a table that decodes both magnitude and value of small ACs in +// one go. +static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) +{ + int i; + for (i=0; i < (1 << FAST_BITS); ++i) { + stbi_uc fast = h->fast[i]; + fast_ac[i] = 0; + if (fast < 255) { + int rs = h->values[fast]; + int run = (rs >> 4) & 15; + int magbits = rs & 15; + int len = h->size[fast]; + + if (magbits && len + magbits <= FAST_BITS) { + // magnitude code followed by receive_extend code + int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); + int m = 1 << (magbits - 1); + if (k < m) k += (~0U << magbits) + 1; + // if the result is small enough, we can fit it in fast_ac table + if (k >= -128 && k <= 127) + fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); + } + } + } +} + +static void stbi__grow_buffer_unsafe(stbi__jpeg *j) +{ + do { + unsigned int b = j->nomore ? 0 : stbi__get8(j->s); + if (b == 0xff) { + int c = stbi__get8(j->s); + while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes + if (c != 0) { + j->marker = (unsigned char) c; + j->nomore = 1; + return; + } + } + j->code_buffer |= b << (24 - j->code_bits); + j->code_bits += 8; + } while (j->code_bits <= 24); +} + +// (1 << n) - 1 +static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; + +// decode a jpeg huffman value from the bitstream +stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) +{ + unsigned int temp; + int c,k; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + // look at the top FAST_BITS and determine what symbol ID it is, + // if the code is <= FAST_BITS + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + k = h->fast[c]; + if (k < 255) { + int s = h->size[k]; + if (s > j->code_bits) + return -1; + j->code_buffer <<= s; + j->code_bits -= s; + return h->values[k]; + } + + // naive test is to shift the code_buffer down so k bits are + // valid, then test against maxcode. To speed this up, we've + // preshifted maxcode left so that it has (16-k) 0s at the + // end; in other words, regardless of the number of bits, it + // wants to be compared against something shifted to have 16; + // that way we don't need to shift inside the loop. + temp = j->code_buffer >> 16; + for (k=FAST_BITS+1 ; ; ++k) + if (temp < h->maxcode[k]) + break; + if (k == 17) { + // error! code not found + j->code_bits -= 16; + return -1; + } + + if (k > j->code_bits) + return -1; + + // convert the huffman code to the symbol id + c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; + STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); + + // convert the id to a symbol + j->code_bits -= k; + j->code_buffer <<= k; + return h->values[c]; +} + +// bias[n] = (-1<code_bits < n) stbi__grow_buffer_unsafe(j); + + sgn = (stbi__int32)j->code_buffer >> 31; // sign bit is always in MSB + k = stbi_lrot(j->code_buffer, n); + STBI_ASSERT(n >= 0 && n < (int) (sizeof(stbi__bmask)/sizeof(*stbi__bmask))); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k + (stbi__jbias[n] & ~sgn); +} + +// get some unsigned bits +stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) +{ + unsigned int k; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k; +} + +stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) +{ + unsigned int k; + if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); + k = j->code_buffer; + j->code_buffer <<= 1; + --j->code_bits; + return k & 0x80000000; +} + +// given a value that's at position X in the zigzag stream, +// where does it appear in the 8x8 matrix coded as row-major? +static const stbi_uc stbi__jpeg_dezigzag[64+15] = +{ + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 7, 14, 21, 28, + 35, 42, 49, 56, 57, 50, 43, 36, + 29, 22, 15, 23, 30, 37, 44, 51, + 58, 59, 52, 45, 38, 31, 39, 46, + 53, 60, 61, 54, 47, 55, 62, 63, + // let corrupt input sample past end + 63, 63, 63, 63, 63, 63, 63, 63, + 63, 63, 63, 63, 63, 63, 63 +}; + +// decode one 64-entry block-- +static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) +{ + int diff,dc,k; + int t; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + + // 0 all the ac values now so we can do it 32-bits at a time + memset(data,0,64*sizeof(data[0])); + + diff = t ? stbi__extend_receive(j, t) : 0; + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc * dequant[0]); + + // decode AC components, see JPEG spec + k = 1; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * dequant[zig]); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (rs != 0xf0) break; // end block + k += 16; + } else { + k += r; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); + } + } + } while (k < 64); + return 1; +} + +static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) +{ + int diff,dc; + int t; + if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + if (j->succ_high == 0) { + // first scan for DC coefficient, must be first + memset(data,0,64*sizeof(data[0])); // 0 all the ac values now + t = stbi__jpeg_huff_decode(j, hdc); + diff = t ? stbi__extend_receive(j, t) : 0; + + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc << j->succ_low); + } else { + // refinement scan for DC coefficient + if (stbi__jpeg_get_bit(j)) + data[0] += (short) (1 << j->succ_low); + } + return 1; +} + +// @OPTIMIZE: store non-zigzagged during the decode passes, +// and only de-zigzag when dequantizing +static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) +{ + int k; + if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->succ_high == 0) { + int shift = j->succ_low; + + if (j->eob_run) { + --j->eob_run; + return 1; + } + + k = j->spec_start; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) << shift); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r); + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + --j->eob_run; + break; + } + k += 16; + } else { + k += r; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) << shift); + } + } + } while (k <= j->spec_end); + } else { + // refinement scan for these AC coefficients + + short bit = (short) (1 << j->succ_low); + + if (j->eob_run) { + --j->eob_run; + for (k = j->spec_start; k <= j->spec_end; ++k) { + short *p = &data[stbi__jpeg_dezigzag[k]]; + if (*p != 0) + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } + } else { + k = j->spec_start; + do { + int r,s; + int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r) - 1; + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + r = 64; // force end of block + } else { + // r=15 s=0 should write 16 0s, so we just do + // a run of 15 0s and then write s (which is 0), + // so we don't have to do anything special here + } + } else { + if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); + // sign bit + if (stbi__jpeg_get_bit(j)) + s = bit; + else + s = -bit; + } + + // advance by r + while (k <= j->spec_end) { + short *p = &data[stbi__jpeg_dezigzag[k++]]; + if (*p != 0) { + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } else { + if (r == 0) { + *p = (short) s; + break; + } + --r; + } + } + } while (k <= j->spec_end); + } + } + return 1; +} + +// take a -128..127 value and stbi__clamp it and convert to 0..255 +stbi_inline static stbi_uc stbi__clamp(int x) +{ + // trick to use a single test to catch both cases + if ((unsigned int) x > 255) { + if (x < 0) return 0; + if (x > 255) return 255; + } + return (stbi_uc) x; +} + +#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) +#define stbi__fsh(x) ((x) * 4096) + +// derived from jidctint -- DCT_ISLOW +#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ + int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ + p2 = s2; \ + p3 = s6; \ + p1 = (p2+p3) * stbi__f2f(0.5411961f); \ + t2 = p1 + p3*stbi__f2f(-1.847759065f); \ + t3 = p1 + p2*stbi__f2f( 0.765366865f); \ + p2 = s0; \ + p3 = s4; \ + t0 = stbi__fsh(p2+p3); \ + t1 = stbi__fsh(p2-p3); \ + x0 = t0+t3; \ + x3 = t0-t3; \ + x1 = t1+t2; \ + x2 = t1-t2; \ + t0 = s7; \ + t1 = s5; \ + t2 = s3; \ + t3 = s1; \ + p3 = t0+t2; \ + p4 = t1+t3; \ + p1 = t0+t3; \ + p2 = t1+t2; \ + p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ + t0 = t0*stbi__f2f( 0.298631336f); \ + t1 = t1*stbi__f2f( 2.053119869f); \ + t2 = t2*stbi__f2f( 3.072711026f); \ + t3 = t3*stbi__f2f( 1.501321110f); \ + p1 = p5 + p1*stbi__f2f(-0.899976223f); \ + p2 = p5 + p2*stbi__f2f(-2.562915447f); \ + p3 = p3*stbi__f2f(-1.961570560f); \ + p4 = p4*stbi__f2f(-0.390180644f); \ + t3 += p1+p4; \ + t2 += p2+p3; \ + t1 += p2+p4; \ + t0 += p1+p3; + +static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) +{ + int i,val[64],*v=val; + stbi_uc *o; + short *d = data; + + // columns + for (i=0; i < 8; ++i,++d, ++v) { + // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing + if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 + && d[40]==0 && d[48]==0 && d[56]==0) { + // no shortcut 0 seconds + // (1|2|3|4|5|6|7)==0 0 seconds + // all separate -0.047 seconds + // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds + int dcterm = d[0]*4; + v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; + } else { + STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) + // constants scaled things up by 1<<12; let's bring them back + // down, but keep 2 extra bits of precision + x0 += 512; x1 += 512; x2 += 512; x3 += 512; + v[ 0] = (x0+t3) >> 10; + v[56] = (x0-t3) >> 10; + v[ 8] = (x1+t2) >> 10; + v[48] = (x1-t2) >> 10; + v[16] = (x2+t1) >> 10; + v[40] = (x2-t1) >> 10; + v[24] = (x3+t0) >> 10; + v[32] = (x3-t0) >> 10; + } + } + + for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { + // no fast case since the first 1D IDCT spread components out + STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) + // constants scaled things up by 1<<12, plus we had 1<<2 from first + // loop, plus horizontal and vertical each scale by sqrt(8) so together + // we've got an extra 1<<3, so 1<<17 total we need to remove. + // so we want to round that, which means adding 0.5 * 1<<17, + // aka 65536. Also, we'll end up with -128 to 127 that we want + // to encode as 0..255 by adding 128, so we'll add that before the shift + x0 += 65536 + (128<<17); + x1 += 65536 + (128<<17); + x2 += 65536 + (128<<17); + x3 += 65536 + (128<<17); + // tried computing the shifts into temps, or'ing the temps to see + // if any were out of range, but that was slower + o[0] = stbi__clamp((x0+t3) >> 17); + o[7] = stbi__clamp((x0-t3) >> 17); + o[1] = stbi__clamp((x1+t2) >> 17); + o[6] = stbi__clamp((x1-t2) >> 17); + o[2] = stbi__clamp((x2+t1) >> 17); + o[5] = stbi__clamp((x2-t1) >> 17); + o[3] = stbi__clamp((x3+t0) >> 17); + o[4] = stbi__clamp((x3-t0) >> 17); + } +} + +#ifdef STBI_SSE2 +// sse2 integer IDCT. not the fastest possible implementation but it +// produces bit-identical results to the generic C version so it's +// fully "transparent". +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + // This is constructed to match our regular (generic) integer IDCT exactly. + __m128i row0, row1, row2, row3, row4, row5, row6, row7; + __m128i tmp; + + // dot product constant: even elems=x, odd elems=y + #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) + + // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) + // out(1) = c1[even]*x + c1[odd]*y + #define dct_rot(out0,out1, x,y,c0,c1) \ + __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ + __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ + __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ + __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ + __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ + __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) + + // out = in << 12 (in 16-bit, out 32-bit) + #define dct_widen(out, in) \ + __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ + __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) + + // wide add + #define dct_wadd(out, a, b) \ + __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_add_epi32(a##_h, b##_h) + + // wide sub + #define dct_wsub(out, a, b) \ + __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) + + // butterfly a/b, add bias, then shift by "s" and pack + #define dct_bfly32o(out0, out1, a,b,bias,s) \ + { \ + __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ + __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ + dct_wadd(sum, abiased, b); \ + dct_wsub(dif, abiased, b); \ + out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ + out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ + } + + // 8-bit interleave step (for transposes) + #define dct_interleave8(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi8(a, b); \ + b = _mm_unpackhi_epi8(tmp, b) + + // 16-bit interleave step (for transposes) + #define dct_interleave16(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi16(a, b); \ + b = _mm_unpackhi_epi16(tmp, b) + + #define dct_pass(bias,shift) \ + { \ + /* even part */ \ + dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ + __m128i sum04 = _mm_add_epi16(row0, row4); \ + __m128i dif04 = _mm_sub_epi16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ + dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ + __m128i sum17 = _mm_add_epi16(row1, row7); \ + __m128i sum35 = _mm_add_epi16(row3, row5); \ + dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ + dct_wadd(x4, y0o, y4o); \ + dct_wadd(x5, y1o, y5o); \ + dct_wadd(x6, y2o, y5o); \ + dct_wadd(x7, y3o, y4o); \ + dct_bfly32o(row0,row7, x0,x7,bias,shift); \ + dct_bfly32o(row1,row6, x1,x6,bias,shift); \ + dct_bfly32o(row2,row5, x2,x5,bias,shift); \ + dct_bfly32o(row3,row4, x3,x4,bias,shift); \ + } + + __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); + __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); + __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); + __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); + __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); + __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); + __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); + __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); + + // rounding biases in column/row passes, see stbi__idct_block for explanation. + __m128i bias_0 = _mm_set1_epi32(512); + __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); + + // load + row0 = _mm_load_si128((const __m128i *) (data + 0*8)); + row1 = _mm_load_si128((const __m128i *) (data + 1*8)); + row2 = _mm_load_si128((const __m128i *) (data + 2*8)); + row3 = _mm_load_si128((const __m128i *) (data + 3*8)); + row4 = _mm_load_si128((const __m128i *) (data + 4*8)); + row5 = _mm_load_si128((const __m128i *) (data + 5*8)); + row6 = _mm_load_si128((const __m128i *) (data + 6*8)); + row7 = _mm_load_si128((const __m128i *) (data + 7*8)); + + // column pass + dct_pass(bias_0, 10); + + { + // 16bit 8x8 transpose pass 1 + dct_interleave16(row0, row4); + dct_interleave16(row1, row5); + dct_interleave16(row2, row6); + dct_interleave16(row3, row7); + + // transpose pass 2 + dct_interleave16(row0, row2); + dct_interleave16(row1, row3); + dct_interleave16(row4, row6); + dct_interleave16(row5, row7); + + // transpose pass 3 + dct_interleave16(row0, row1); + dct_interleave16(row2, row3); + dct_interleave16(row4, row5); + dct_interleave16(row6, row7); + } + + // row pass + dct_pass(bias_1, 17); + + { + // pack + __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 + __m128i p1 = _mm_packus_epi16(row2, row3); + __m128i p2 = _mm_packus_epi16(row4, row5); + __m128i p3 = _mm_packus_epi16(row6, row7); + + // 8bit 8x8 transpose pass 1 + dct_interleave8(p0, p2); // a0e0a1e1... + dct_interleave8(p1, p3); // c0g0c1g1... + + // transpose pass 2 + dct_interleave8(p0, p1); // a0c0e0g0... + dct_interleave8(p2, p3); // b0d0f0h0... + + // transpose pass 3 + dct_interleave8(p0, p2); // a0b0c0d0... + dct_interleave8(p1, p3); // a4b4c4d4... + + // store + _mm_storel_epi64((__m128i *) out, p0); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p2); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p1); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p3); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); + } + +#undef dct_const +#undef dct_rot +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_interleave8 +#undef dct_interleave16 +#undef dct_pass +} + +#endif // STBI_SSE2 + +#ifdef STBI_NEON + +// NEON integer IDCT. should produce bit-identical +// results to the generic C version. +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; + + int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); + int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); + int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); + int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); + int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); + int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); + int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); + int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); + int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); + int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); + int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); + int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); + +#define dct_long_mul(out, inq, coeff) \ + int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) + +#define dct_long_mac(out, acc, inq, coeff) \ + int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) + +#define dct_widen(out, inq) \ + int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ + int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) + +// wide add +#define dct_wadd(out, a, b) \ + int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vaddq_s32(a##_h, b##_h) + +// wide sub +#define dct_wsub(out, a, b) \ + int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vsubq_s32(a##_h, b##_h) + +// butterfly a/b, then shift using "shiftop" by "s" and pack +#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ + { \ + dct_wadd(sum, a, b); \ + dct_wsub(dif, a, b); \ + out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ + out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ + } + +#define dct_pass(shiftop, shift) \ + { \ + /* even part */ \ + int16x8_t sum26 = vaddq_s16(row2, row6); \ + dct_long_mul(p1e, sum26, rot0_0); \ + dct_long_mac(t2e, p1e, row6, rot0_1); \ + dct_long_mac(t3e, p1e, row2, rot0_2); \ + int16x8_t sum04 = vaddq_s16(row0, row4); \ + int16x8_t dif04 = vsubq_s16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + int16x8_t sum15 = vaddq_s16(row1, row5); \ + int16x8_t sum17 = vaddq_s16(row1, row7); \ + int16x8_t sum35 = vaddq_s16(row3, row5); \ + int16x8_t sum37 = vaddq_s16(row3, row7); \ + int16x8_t sumodd = vaddq_s16(sum17, sum35); \ + dct_long_mul(p5o, sumodd, rot1_0); \ + dct_long_mac(p1o, p5o, sum17, rot1_1); \ + dct_long_mac(p2o, p5o, sum35, rot1_2); \ + dct_long_mul(p3o, sum37, rot2_0); \ + dct_long_mul(p4o, sum15, rot2_1); \ + dct_wadd(sump13o, p1o, p3o); \ + dct_wadd(sump24o, p2o, p4o); \ + dct_wadd(sump23o, p2o, p3o); \ + dct_wadd(sump14o, p1o, p4o); \ + dct_long_mac(x4, sump13o, row7, rot3_0); \ + dct_long_mac(x5, sump24o, row5, rot3_1); \ + dct_long_mac(x6, sump23o, row3, rot3_2); \ + dct_long_mac(x7, sump14o, row1, rot3_3); \ + dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ + dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ + dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ + dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ + } + + // load + row0 = vld1q_s16(data + 0*8); + row1 = vld1q_s16(data + 1*8); + row2 = vld1q_s16(data + 2*8); + row3 = vld1q_s16(data + 3*8); + row4 = vld1q_s16(data + 4*8); + row5 = vld1q_s16(data + 5*8); + row6 = vld1q_s16(data + 6*8); + row7 = vld1q_s16(data + 7*8); + + // add DC bias + row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); + + // column pass + dct_pass(vrshrn_n_s32, 10); + + // 16bit 8x8 transpose + { +// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. +// whether compilers actually get this is another story, sadly. +#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } +#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } + + // pass 1 + dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 + dct_trn16(row2, row3); + dct_trn16(row4, row5); + dct_trn16(row6, row7); + + // pass 2 + dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 + dct_trn32(row1, row3); + dct_trn32(row4, row6); + dct_trn32(row5, row7); + + // pass 3 + dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 + dct_trn64(row1, row5); + dct_trn64(row2, row6); + dct_trn64(row3, row7); + +#undef dct_trn16 +#undef dct_trn32 +#undef dct_trn64 + } + + // row pass + // vrshrn_n_s32 only supports shifts up to 16, we need + // 17. so do a non-rounding shift of 16 first then follow + // up with a rounding shift by 1. + dct_pass(vshrn_n_s32, 16); + + { + // pack and round + uint8x8_t p0 = vqrshrun_n_s16(row0, 1); + uint8x8_t p1 = vqrshrun_n_s16(row1, 1); + uint8x8_t p2 = vqrshrun_n_s16(row2, 1); + uint8x8_t p3 = vqrshrun_n_s16(row3, 1); + uint8x8_t p4 = vqrshrun_n_s16(row4, 1); + uint8x8_t p5 = vqrshrun_n_s16(row5, 1); + uint8x8_t p6 = vqrshrun_n_s16(row6, 1); + uint8x8_t p7 = vqrshrun_n_s16(row7, 1); + + // again, these can translate into one instruction, but often don't. +#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } +#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } + + // sadly can't use interleaved stores here since we only write + // 8 bytes to each scan line! + + // 8x8 8-bit transpose pass 1 + dct_trn8_8(p0, p1); + dct_trn8_8(p2, p3); + dct_trn8_8(p4, p5); + dct_trn8_8(p6, p7); + + // pass 2 + dct_trn8_16(p0, p2); + dct_trn8_16(p1, p3); + dct_trn8_16(p4, p6); + dct_trn8_16(p5, p7); + + // pass 3 + dct_trn8_32(p0, p4); + dct_trn8_32(p1, p5); + dct_trn8_32(p2, p6); + dct_trn8_32(p3, p7); + + // store + vst1_u8(out, p0); out += out_stride; + vst1_u8(out, p1); out += out_stride; + vst1_u8(out, p2); out += out_stride; + vst1_u8(out, p3); out += out_stride; + vst1_u8(out, p4); out += out_stride; + vst1_u8(out, p5); out += out_stride; + vst1_u8(out, p6); out += out_stride; + vst1_u8(out, p7); + +#undef dct_trn8_8 +#undef dct_trn8_16 +#undef dct_trn8_32 + } + +#undef dct_long_mul +#undef dct_long_mac +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_pass +} + +#endif // STBI_NEON + +#define STBI__MARKER_none 0xff +// if there's a pending marker from the entropy stream, return that +// otherwise, fetch from the stream and get a marker. if there's no +// marker, return 0xff, which is never a valid marker value +static stbi_uc stbi__get_marker(stbi__jpeg *j) +{ + stbi_uc x; + if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } + x = stbi__get8(j->s); + if (x != 0xff) return STBI__MARKER_none; + while (x == 0xff) + x = stbi__get8(j->s); // consume repeated 0xff fill bytes + return x; +} + +// in each scan, we'll have scan_n components, and the order +// of the components is specified by order[] +#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) + +// after a restart interval, stbi__jpeg_reset the entropy decoder and +// the dc prediction +static void stbi__jpeg_reset(stbi__jpeg *j) +{ + j->code_bits = 0; + j->code_buffer = 0; + j->nomore = 0; + j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; + j->marker = STBI__MARKER_none; + j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; + j->eob_run = 0; + // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, + // since we don't even allow 1<<30 pixels +} + +static int stbi__parse_entropy_coded_data(stbi__jpeg *z) +{ + stbi__jpeg_reset(z); + if (!z->progressive) { + if (z->scan_n == 1) { + int i,j; + STBI_SIMD_ALIGN(short, data[64]); + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + // if it's NOT a restart, then just bail, so we get corrupt data + // rather than no data + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + STBI_SIMD_ALIGN(short, data[64]); + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x)*8; + int y2 = (j*z->img_comp[n].v + y)*8; + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } else { + if (z->scan_n == 1) { + int i,j; + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + if (z->spec_start == 0) { + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } else { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) + return 0; + } + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x); + int y2 = (j*z->img_comp[n].v + y); + short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } +} + +static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) +{ + int i; + for (i=0; i < 64; ++i) + data[i] *= dequant[i]; +} + +static void stbi__jpeg_finish(stbi__jpeg *z) +{ + if (z->progressive) { + // dequantize and idct the data + int i,j,n; + for (n=0; n < z->s->img_n; ++n) { + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + } + } + } + } +} + +static int stbi__process_marker(stbi__jpeg *z, int m) +{ + int L; + switch (m) { + case STBI__MARKER_none: // no marker found + return stbi__err("expected marker","Corrupt JPEG"); + + case 0xDD: // DRI - specify restart interval + if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); + z->restart_interval = stbi__get16be(z->s); + return 1; + + case 0xDB: // DQT - define quantization table + L = stbi__get16be(z->s)-2; + while (L > 0) { + int q = stbi__get8(z->s); + int p = q >> 4, sixteen = (p != 0); + int t = q & 15,i; + if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); + if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); + + for (i=0; i < 64; ++i) + z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); + L -= (sixteen ? 129 : 65); + } + return L==0; + + case 0xC4: // DHT - define huffman table + L = stbi__get16be(z->s)-2; + while (L > 0) { + stbi_uc *v; + int sizes[16],i,n=0; + int q = stbi__get8(z->s); + int tc = q >> 4; + int th = q & 15; + if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); + for (i=0; i < 16; ++i) { + sizes[i] = stbi__get8(z->s); + n += sizes[i]; + } + L -= 17; + if (tc == 0) { + if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; + v = z->huff_dc[th].values; + } else { + if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; + v = z->huff_ac[th].values; + } + for (i=0; i < n; ++i) + v[i] = stbi__get8(z->s); + if (tc != 0) + stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); + L -= n; + } + return L==0; + } + + // check for comment block or APP blocks + if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { + L = stbi__get16be(z->s); + if (L < 2) { + if (m == 0xFE) + return stbi__err("bad COM len","Corrupt JPEG"); + else + return stbi__err("bad APP len","Corrupt JPEG"); + } + L -= 2; + + if (m == 0xE0 && L >= 5) { // JFIF APP0 segment + static const unsigned char tag[5] = {'J','F','I','F','\0'}; + int ok = 1; + int i; + for (i=0; i < 5; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 5; + if (ok) + z->jfif = 1; + } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment + static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; + int ok = 1; + int i; + for (i=0; i < 6; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 6; + if (ok) { + stbi__get8(z->s); // version + stbi__get16be(z->s); // flags0 + stbi__get16be(z->s); // flags1 + z->app14_color_transform = stbi__get8(z->s); // color transform + L -= 6; + } + } + + stbi__skip(z->s, L); + return 1; + } + + return stbi__err("unknown marker","Corrupt JPEG"); +} + +// after we see SOS +static int stbi__process_scan_header(stbi__jpeg *z) +{ + int i; + int Ls = stbi__get16be(z->s); + z->scan_n = stbi__get8(z->s); + if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); + if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); + for (i=0; i < z->scan_n; ++i) { + int id = stbi__get8(z->s), which; + int q = stbi__get8(z->s); + for (which = 0; which < z->s->img_n; ++which) + if (z->img_comp[which].id == id) + break; + if (which == z->s->img_n) return 0; // no match + z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); + z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); + z->order[i] = which; + } + + { + int aa; + z->spec_start = stbi__get8(z->s); + z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 + aa = stbi__get8(z->s); + z->succ_high = (aa >> 4); + z->succ_low = (aa & 15); + if (z->progressive) { + if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) + return stbi__err("bad SOS", "Corrupt JPEG"); + } else { + if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); + if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); + z->spec_end = 63; + } + } + + return 1; +} + +static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) +{ + int i; + for (i=0; i < ncomp; ++i) { + if (z->img_comp[i].raw_data) { + STBI_FREE(z->img_comp[i].raw_data); + z->img_comp[i].raw_data = NULL; + z->img_comp[i].data = NULL; + } + if (z->img_comp[i].raw_coeff) { + STBI_FREE(z->img_comp[i].raw_coeff); + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].coeff = 0; + } + if (z->img_comp[i].linebuf) { + STBI_FREE(z->img_comp[i].linebuf); + z->img_comp[i].linebuf = NULL; + } + } + return why; +} + +static int stbi__process_frame_header(stbi__jpeg *z, int scan) +{ + stbi__context *s = z->s; + int Lf,p,i,q, h_max=1,v_max=1,c; + Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG + p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline + s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG + s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires + c = stbi__get8(s); + if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); + s->img_n = c; + for (i=0; i < c; ++i) { + z->img_comp[i].data = NULL; + z->img_comp[i].linebuf = NULL; + } + + if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); + + z->rgb = 0; + for (i=0; i < s->img_n; ++i) { + static const unsigned char rgb[3] = { 'R', 'G', 'B' }; + z->img_comp[i].id = stbi__get8(s); + if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) + ++z->rgb; + q = stbi__get8(s); + z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); + z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); + z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); + } + + if (scan != STBI__SCAN_load) return 1; + + if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); + + for (i=0; i < s->img_n; ++i) { + if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; + if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; + } + + // compute interleaved mcu info + z->img_h_max = h_max; + z->img_v_max = v_max; + z->img_mcu_w = h_max * 8; + z->img_mcu_h = v_max * 8; + // these sizes can't be more than 17 bits + z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; + z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; + + for (i=0; i < s->img_n; ++i) { + // number of effective pixels (e.g. for non-interleaved MCU) + z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; + z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; + // to simplify generation, we'll allocate enough memory to decode + // the bogus oversized data from using interleaved MCUs and their + // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't + // discard the extra data until colorspace conversion + // + // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) + // so these muls can't overflow with 32-bit ints (which we require) + z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; + z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; + z->img_comp[i].coeff = 0; + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].linebuf = NULL; + z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); + if (z->img_comp[i].raw_data == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + // align blocks for idct using mmx/sse + z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); + if (z->progressive) { + // w2, h2 are multiples of 8 (see above) + z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; + z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; + z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); + if (z->img_comp[i].raw_coeff == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); + } + } + + return 1; +} + +// use comparisons since in some cases we handle more than one case (e.g. SOF) +#define stbi__DNL(x) ((x) == 0xdc) +#define stbi__SOI(x) ((x) == 0xd8) +#define stbi__EOI(x) ((x) == 0xd9) +#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) +#define stbi__SOS(x) ((x) == 0xda) + +#define stbi__SOF_progressive(x) ((x) == 0xc2) + +static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) +{ + int m; + z->jfif = 0; + z->app14_color_transform = -1; // valid values are 0,1,2 + z->marker = STBI__MARKER_none; // initialize cached marker to empty + m = stbi__get_marker(z); + if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); + if (scan == STBI__SCAN_type) return 1; + m = stbi__get_marker(z); + while (!stbi__SOF(m)) { + if (!stbi__process_marker(z,m)) return 0; + m = stbi__get_marker(z); + while (m == STBI__MARKER_none) { + // some files have extra padding after their blocks, so ok, we'll scan + if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); + m = stbi__get_marker(z); + } + } + z->progressive = stbi__SOF_progressive(m); + if (!stbi__process_frame_header(z, scan)) return 0; + return 1; +} + +// decode image to YCbCr format +static int stbi__decode_jpeg_image(stbi__jpeg *j) +{ + int m; + for (m = 0; m < 4; m++) { + j->img_comp[m].raw_data = NULL; + j->img_comp[m].raw_coeff = NULL; + } + j->restart_interval = 0; + if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; + m = stbi__get_marker(j); + while (!stbi__EOI(m)) { + if (stbi__SOS(m)) { + if (!stbi__process_scan_header(j)) return 0; + if (!stbi__parse_entropy_coded_data(j)) return 0; + if (j->marker == STBI__MARKER_none ) { + // handle 0s at the end of image data from IP Kamera 9060 + while (!stbi__at_eof(j->s)) { + int x = stbi__get8(j->s); + if (x == 255) { + j->marker = stbi__get8(j->s); + break; + } + } + // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 + } + } else if (stbi__DNL(m)) { + int Ld = stbi__get16be(j->s); + stbi__uint32 NL = stbi__get16be(j->s); + if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); + if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); + } else { + if (!stbi__process_marker(j, m)) return 0; + } + m = stbi__get_marker(j); + } + if (j->progressive) + stbi__jpeg_finish(j); + return 1; +} + +// static jfif-centered resampling (across block boundaries) + +typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, + int w, int hs); + +#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) + +static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + STBI_NOTUSED(out); + STBI_NOTUSED(in_far); + STBI_NOTUSED(w); + STBI_NOTUSED(hs); + return in_near; +} + +static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples vertically for every one in input + int i; + STBI_NOTUSED(hs); + for (i=0; i < w; ++i) + out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); + return out; +} + +static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples horizontally for every one in input + int i; + stbi_uc *input = in_near; + + if (w == 1) { + // if only one sample, can't do any interpolation + out[0] = out[1] = input[0]; + return out; + } + + out[0] = input[0]; + out[1] = stbi__div4(input[0]*3 + input[1] + 2); + for (i=1; i < w-1; ++i) { + int n = 3*input[i]+2; + out[i*2+0] = stbi__div4(n+input[i-1]); + out[i*2+1] = stbi__div4(n+input[i+1]); + } + out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); + out[i*2+1] = input[w-1]; + + STBI_NOTUSED(in_far); + STBI_NOTUSED(hs); + + return out; +} + +#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) + +static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i,t0,t1; + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + out[0] = stbi__div4(t1+2); + for (i=1; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i=0,t0,t1; + + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + // process groups of 8 pixels for as long as we can. + // note we can't handle the last pixel in a row in this loop + // because we need to handle the filter boundary conditions. + for (; i < ((w-1) & ~7); i += 8) { +#if defined(STBI_SSE2) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + __m128i zero = _mm_setzero_si128(); + __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); + __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); + __m128i farw = _mm_unpacklo_epi8(farb, zero); + __m128i nearw = _mm_unpacklo_epi8(nearb, zero); + __m128i diff = _mm_sub_epi16(farw, nearw); + __m128i nears = _mm_slli_epi16(nearw, 2); + __m128i curr = _mm_add_epi16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + __m128i prv0 = _mm_slli_si128(curr, 2); + __m128i nxt0 = _mm_srli_si128(curr, 2); + __m128i prev = _mm_insert_epi16(prv0, t1, 0); + __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + __m128i bias = _mm_set1_epi16(8); + __m128i curs = _mm_slli_epi16(curr, 2); + __m128i prvd = _mm_sub_epi16(prev, curr); + __m128i nxtd = _mm_sub_epi16(next, curr); + __m128i curb = _mm_add_epi16(curs, bias); + __m128i even = _mm_add_epi16(prvd, curb); + __m128i odd = _mm_add_epi16(nxtd, curb); + + // interleave even and odd pixels, then undo scaling. + __m128i int0 = _mm_unpacklo_epi16(even, odd); + __m128i int1 = _mm_unpackhi_epi16(even, odd); + __m128i de0 = _mm_srli_epi16(int0, 4); + __m128i de1 = _mm_srli_epi16(int1, 4); + + // pack and write output + __m128i outv = _mm_packus_epi16(de0, de1); + _mm_storeu_si128((__m128i *) (out + i*2), outv); +#elif defined(STBI_NEON) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + uint8x8_t farb = vld1_u8(in_far + i); + uint8x8_t nearb = vld1_u8(in_near + i); + int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); + int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); + int16x8_t curr = vaddq_s16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + int16x8_t prv0 = vextq_s16(curr, curr, 7); + int16x8_t nxt0 = vextq_s16(curr, curr, 1); + int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); + int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + int16x8_t curs = vshlq_n_s16(curr, 2); + int16x8_t prvd = vsubq_s16(prev, curr); + int16x8_t nxtd = vsubq_s16(next, curr); + int16x8_t even = vaddq_s16(curs, prvd); + int16x8_t odd = vaddq_s16(curs, nxtd); + + // undo scaling and round, then store with even/odd phases interleaved + uint8x8x2_t o; + o.val[0] = vqrshrun_n_s16(even, 4); + o.val[1] = vqrshrun_n_s16(odd, 4); + vst2_u8(out + i*2, o); +#endif + + // "previous" value for next iter + t1 = 3*in_near[i+7] + in_far[i+7]; + } + + t0 = t1; + t1 = 3*in_near[i] + in_far[i]; + out[i*2] = stbi__div16(3*t1 + t0 + 8); + + for (++i; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} +#endif + +static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // resample with nearest-neighbor + int i,j; + STBI_NOTUSED(in_far); + for (i=0; i < w; ++i) + for (j=0; j < hs; ++j) + out[i*hs+j] = in_near[i]; + return out; +} + +// this is a reduced-precision calculation of YCbCr-to-RGB introduced +// to make sure the code produces the same results in both SIMD and scalar +#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) +static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) +{ + int i; + for (i=0; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) +{ + int i = 0; + +#ifdef STBI_SSE2 + // step == 3 is pretty ugly on the final interleave, and i'm not convinced + // it's useful in practice (you wouldn't use it for textures, for example). + // so just accelerate step == 4 case. + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + __m128i signflip = _mm_set1_epi8(-0x80); + __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); + __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); + __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); + __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); + __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); + __m128i xw = _mm_set1_epi16(255); // alpha channel + + for (; i+7 < count; i += 8) { + // load + __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); + __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); + __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); + __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 + __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 + + // unpack to short (and left-shift cr, cb by 8) + __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); + __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); + __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); + + // color transform + __m128i yws = _mm_srli_epi16(yw, 4); + __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); + __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); + __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); + __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); + __m128i rws = _mm_add_epi16(cr0, yws); + __m128i gwt = _mm_add_epi16(cb0, yws); + __m128i bws = _mm_add_epi16(yws, cb1); + __m128i gws = _mm_add_epi16(gwt, cr1); + + // descale + __m128i rw = _mm_srai_epi16(rws, 4); + __m128i bw = _mm_srai_epi16(bws, 4); + __m128i gw = _mm_srai_epi16(gws, 4); + + // back to byte, set up for transpose + __m128i brb = _mm_packus_epi16(rw, bw); + __m128i gxb = _mm_packus_epi16(gw, xw); + + // transpose to interleave channels + __m128i t0 = _mm_unpacklo_epi8(brb, gxb); + __m128i t1 = _mm_unpackhi_epi8(brb, gxb); + __m128i o0 = _mm_unpacklo_epi16(t0, t1); + __m128i o1 = _mm_unpackhi_epi16(t0, t1); + + // store + _mm_storeu_si128((__m128i *) (out + 0), o0); + _mm_storeu_si128((__m128i *) (out + 16), o1); + out += 32; + } + } +#endif + +#ifdef STBI_NEON + // in this version, step=3 support would be easy to add. but is there demand? + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + uint8x8_t signflip = vdup_n_u8(0x80); + int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); + int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); + int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); + int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); + + for (; i+7 < count; i += 8) { + // load + uint8x8_t y_bytes = vld1_u8(y + i); + uint8x8_t cr_bytes = vld1_u8(pcr + i); + uint8x8_t cb_bytes = vld1_u8(pcb + i); + int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); + int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); + + // expand to s16 + int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); + int16x8_t crw = vshll_n_s8(cr_biased, 7); + int16x8_t cbw = vshll_n_s8(cb_biased, 7); + + // color transform + int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); + int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); + int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); + int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); + int16x8_t rws = vaddq_s16(yws, cr0); + int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); + int16x8_t bws = vaddq_s16(yws, cb1); + + // undo scaling, round, convert to byte + uint8x8x4_t o; + o.val[0] = vqrshrun_n_s16(rws, 4); + o.val[1] = vqrshrun_n_s16(gws, 4); + o.val[2] = vqrshrun_n_s16(bws, 4); + o.val[3] = vdup_n_u8(255); + + // store, interleaving r/g/b/a + vst4_u8(out, o); + out += 8*4; + } + } +#endif + + for (; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} +#endif + +// set up the kernels +static void stbi__setup_jpeg(stbi__jpeg *j) +{ + j->idct_block_kernel = stbi__idct_block; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; + +#ifdef STBI_SSE2 + if (stbi__sse2_available()) { + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; + } +#endif + +#ifdef STBI_NEON + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; +#endif +} + +// clean up the temporary component buffers +static void stbi__cleanup_jpeg(stbi__jpeg *j) +{ + stbi__free_jpeg_components(j, j->s->img_n, 0); +} + +typedef struct +{ + resample_row_func resample; + stbi_uc *line0,*line1; + int hs,vs; // expansion factor in each axis + int w_lores; // horizontal pixels pre-expansion + int ystep; // how far through vertical expansion we are + int ypos; // which pre-expansion row we're on +} stbi__resample; + +// fast 0..255 * 0..255 => 0..255 rounded multiplication +static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) +{ + unsigned int t = x*y + 128; + return (stbi_uc) ((t + (t >>8)) >> 8); +} + +static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) +{ + int n, decode_n, is_rgb; + z->s->img_n = 0; // make stbi__cleanup_jpeg safe + + // validate req_comp + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + + // load a jpeg image from whichever source, but leave in YCbCr format + if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } + + // determine actual number of components to generate + n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; + + is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); + + if (z->s->img_n == 3 && n < 3 && !is_rgb) + decode_n = 1; + else + decode_n = z->s->img_n; + + // resample and color-convert + { + int k; + unsigned int i,j; + stbi_uc *output; + stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL }; + + stbi__resample res_comp[4]; + + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + + // allocate line buffer big enough for upsampling off the edges + // with upsample factor of 4 + z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); + if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + r->hs = z->img_h_max / z->img_comp[k].h; + r->vs = z->img_v_max / z->img_comp[k].v; + r->ystep = r->vs >> 1; + r->w_lores = (z->s->img_x + r->hs-1) / r->hs; + r->ypos = 0; + r->line0 = r->line1 = z->img_comp[k].data; + + if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; + else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; + else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; + else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; + else r->resample = stbi__resample_row_generic; + } + + // can't error after this so, this is safe + output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); + if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + // now go ahead and resample + for (j=0; j < z->s->img_y; ++j) { + stbi_uc *out = output + n * z->s->img_x * j; + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + int y_bot = r->ystep >= (r->vs >> 1); + coutput[k] = r->resample(z->img_comp[k].linebuf, + y_bot ? r->line1 : r->line0, + y_bot ? r->line0 : r->line1, + r->w_lores, r->hs); + if (++r->ystep >= r->vs) { + r->ystep = 0; + r->line0 = r->line1; + if (++r->ypos < z->img_comp[k].y) + r->line1 += z->img_comp[k].w2; + } + } + if (n >= 3) { + stbi_uc *y = coutput[0]; + if (z->s->img_n == 3) { + if (is_rgb) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = y[i]; + out[1] = coutput[1][i]; + out[2] = coutput[2][i]; + out[3] = 255; + out += n; + } + } else { + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else if (z->s->img_n == 4) { + if (z->app14_color_transform == 0) { // CMYK + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(coutput[0][i], m); + out[1] = stbi__blinn_8x8(coutput[1][i], m); + out[2] = stbi__blinn_8x8(coutput[2][i], m); + out[3] = 255; + out += n; + } + } else if (z->app14_color_transform == 2) { // YCCK + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(255 - out[0], m); + out[1] = stbi__blinn_8x8(255 - out[1], m); + out[2] = stbi__blinn_8x8(255 - out[2], m); + out += n; + } + } else { // YCbCr + alpha? Ignore the fourth channel for now + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else + for (i=0; i < z->s->img_x; ++i) { + out[0] = out[1] = out[2] = y[i]; + out[3] = 255; // not used if n==3 + out += n; + } + } else { + if (is_rgb) { + if (n == 1) + for (i=0; i < z->s->img_x; ++i) + *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + else { + for (i=0; i < z->s->img_x; ++i, out += 2) { + out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + out[1] = 255; + } + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); + stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); + stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); + out[0] = stbi__compute_y(r, g, b); + out[1] = 255; + out += n; + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); + out[1] = 255; + out += n; + } + } else { + stbi_uc *y = coutput[0]; + if (n == 1) + for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; + else + for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; } + } + } + } + stbi__cleanup_jpeg(z); + *out_x = z->s->img_x; + *out_y = z->s->img_y; + if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output + return output; + } +} + +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + unsigned char* result; + stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); + STBI_NOTUSED(ri); + j->s = s; + stbi__setup_jpeg(j); + result = load_jpeg_image(j, x,y,comp,req_comp); + STBI_FREE(j); + return result; +} + +static int stbi__jpeg_test(stbi__context *s) +{ + int r; + stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); + j->s = s; + stbi__setup_jpeg(j); + r = stbi__decode_jpeg_header(j, STBI__SCAN_type); + stbi__rewind(s); + STBI_FREE(j); + return r; +} + +static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) +{ + if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { + stbi__rewind( j->s ); + return 0; + } + if (x) *x = j->s->img_x; + if (y) *y = j->s->img_y; + if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; + return 1; +} + +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) +{ + int result; + stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); + j->s = s; + result = stbi__jpeg_info_raw(j, x, y, comp); + STBI_FREE(j); + return result; +} +#endif + +// public domain zlib decode v0.2 Sean Barrett 2006-11-18 +// simple implementation +// - all input must be provided in an upfront buffer +// - all output is written to a single output buffer (can malloc/realloc) +// performance +// - fast huffman + +#ifndef STBI_NO_ZLIB + +// fast-way is faster to check than jpeg huffman, but slow way is slower +#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables +#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) + +// zlib-style huffman encoding +// (jpegs packs from left, zlib from right, so can't share code) +typedef struct +{ + stbi__uint16 fast[1 << STBI__ZFAST_BITS]; + stbi__uint16 firstcode[16]; + int maxcode[17]; + stbi__uint16 firstsymbol[16]; + stbi_uc size[288]; + stbi__uint16 value[288]; +} stbi__zhuffman; + +stbi_inline static int stbi__bitreverse16(int n) +{ + n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); + n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); + n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); + n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); + return n; +} + +stbi_inline static int stbi__bit_reverse(int v, int bits) +{ + STBI_ASSERT(bits <= 16); + // to bit reverse n bits, reverse 16 and shift + // e.g. 11 bits, bit reverse and shift away 5 + return stbi__bitreverse16(v) >> (16-bits); +} + +static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) +{ + int i,k=0; + int code, next_code[16], sizes[17]; + + // DEFLATE spec for generating codes + memset(sizes, 0, sizeof(sizes)); + memset(z->fast, 0, sizeof(z->fast)); + for (i=0; i < num; ++i) + ++sizes[sizelist[i]]; + sizes[0] = 0; + for (i=1; i < 16; ++i) + if (sizes[i] > (1 << i)) + return stbi__err("bad sizes", "Corrupt PNG"); + code = 0; + for (i=1; i < 16; ++i) { + next_code[i] = code; + z->firstcode[i] = (stbi__uint16) code; + z->firstsymbol[i] = (stbi__uint16) k; + code = (code + sizes[i]); + if (sizes[i]) + if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); + z->maxcode[i] = code << (16-i); // preshift for inner loop + code <<= 1; + k += sizes[i]; + } + z->maxcode[16] = 0x10000; // sentinel + for (i=0; i < num; ++i) { + int s = sizelist[i]; + if (s) { + int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; + stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); + z->size [c] = (stbi_uc ) s; + z->value[c] = (stbi__uint16) i; + if (s <= STBI__ZFAST_BITS) { + int j = stbi__bit_reverse(next_code[s],s); + while (j < (1 << STBI__ZFAST_BITS)) { + z->fast[j] = fastv; + j += (1 << s); + } + } + ++next_code[s]; + } + } + return 1; +} + +// zlib-from-memory implementation for PNG reading +// because PNG allows splitting the zlib stream arbitrarily, +// and it's annoying structurally to have PNG call ZLIB call PNG, +// we require PNG read all the IDATs and combine them into a single +// memory buffer + +typedef struct +{ + stbi_uc *zbuffer, *zbuffer_end; + int num_bits; + stbi__uint32 code_buffer; + + char *zout; + char *zout_start; + char *zout_end; + int z_expandable; + + stbi__zhuffman z_length, z_distance; +} stbi__zbuf; + +stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) +{ + if (z->zbuffer >= z->zbuffer_end) return 0; + return *z->zbuffer++; +} + +static void stbi__fill_bits(stbi__zbuf *z) +{ + do { + STBI_ASSERT(z->code_buffer < (1U << z->num_bits)); + z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; + z->num_bits += 8; + } while (z->num_bits <= 24); +} + +stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) +{ + unsigned int k; + if (z->num_bits < n) stbi__fill_bits(z); + k = z->code_buffer & ((1 << n) - 1); + z->code_buffer >>= n; + z->num_bits -= n; + return k; +} + +static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s,k; + // not resolved by fast table, so compute it the slow way + // use jpeg approach, which requires MSbits at top + k = stbi__bit_reverse(a->code_buffer, 16); + for (s=STBI__ZFAST_BITS+1; ; ++s) + if (k < z->maxcode[s]) + break; + if (s == 16) return -1; // invalid code! + // code size is s, so: + b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; + STBI_ASSERT(z->size[b] == s); + a->code_buffer >>= s; + a->num_bits -= s; + return z->value[b]; +} + +stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s; + if (a->num_bits < 16) stbi__fill_bits(a); + b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; + if (b) { + s = b >> 9; + a->code_buffer >>= s; + a->num_bits -= s; + return b & 511; + } + return stbi__zhuffman_decode_slowpath(a, z); +} + +static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes +{ + char *q; + int cur, limit, old_limit; + z->zout = zout; + if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); + cur = (int) (z->zout - z->zout_start); + limit = old_limit = (int) (z->zout_end - z->zout_start); + while (cur + n > limit) + limit *= 2; + q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); + STBI_NOTUSED(old_limit); + if (q == NULL) return stbi__err("outofmem", "Out of memory"); + z->zout_start = q; + z->zout = q + cur; + z->zout_end = q + limit; + return 1; +} + +static const int stbi__zlength_base[31] = { + 3,4,5,6,7,8,9,10,11,13, + 15,17,19,23,27,31,35,43,51,59, + 67,83,99,115,131,163,195,227,258,0,0 }; + +static const int stbi__zlength_extra[31]= +{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; + +static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, +257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; + +static const int stbi__zdist_extra[32] = +{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; + +static int stbi__parse_huffman_block(stbi__zbuf *a) +{ + char *zout = a->zout; + for(;;) { + int z = stbi__zhuffman_decode(a, &a->z_length); + if (z < 256) { + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes + if (zout >= a->zout_end) { + if (!stbi__zexpand(a, zout, 1)) return 0; + zout = a->zout; + } + *zout++ = (char) z; + } else { + stbi_uc *p; + int len,dist; + if (z == 256) { + a->zout = zout; + return 1; + } + z -= 257; + len = stbi__zlength_base[z]; + if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); + z = stbi__zhuffman_decode(a, &a->z_distance); + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); + dist = stbi__zdist_base[z]; + if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); + if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); + if (zout + len > a->zout_end) { + if (!stbi__zexpand(a, zout, len)) return 0; + zout = a->zout; + } + p = (stbi_uc *) (zout - dist); + if (dist == 1) { // run of one byte; common in images. + stbi_uc v = *p; + if (len) { do *zout++ = v; while (--len); } + } else { + if (len) { do *zout++ = *p++; while (--len); } + } + } + } +} + +static int stbi__compute_huffman_codes(stbi__zbuf *a) +{ + static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; + stbi__zhuffman z_codelength; + stbi_uc lencodes[286+32+137];//padding for maximum single op + stbi_uc codelength_sizes[19]; + int i,n; + + int hlit = stbi__zreceive(a,5) + 257; + int hdist = stbi__zreceive(a,5) + 1; + int hclen = stbi__zreceive(a,4) + 4; + int ntot = hlit + hdist; + + memset(codelength_sizes, 0, sizeof(codelength_sizes)); + for (i=0; i < hclen; ++i) { + int s = stbi__zreceive(a,3); + codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; + } + if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; + + n = 0; + while (n < ntot) { + int c = stbi__zhuffman_decode(a, &z_codelength); + if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); + if (c < 16) + lencodes[n++] = (stbi_uc) c; + else { + stbi_uc fill = 0; + if (c == 16) { + c = stbi__zreceive(a,2)+3; + if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); + fill = lencodes[n-1]; + } else if (c == 17) + c = stbi__zreceive(a,3)+3; + else { + STBI_ASSERT(c == 18); + c = stbi__zreceive(a,7)+11; + } + if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); + memset(lencodes+n, fill, c); + n += c; + } + } + if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); + if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; + return 1; +} + +static int stbi__parse_uncompressed_block(stbi__zbuf *a) +{ + stbi_uc header[4]; + int len,nlen,k; + if (a->num_bits & 7) + stbi__zreceive(a, a->num_bits & 7); // discard + // drain the bit-packed data into header + k = 0; + while (a->num_bits > 0) { + header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check + a->code_buffer >>= 8; + a->num_bits -= 8; + } + STBI_ASSERT(a->num_bits == 0); + // now fill header the normal way + while (k < 4) + header[k++] = stbi__zget8(a); + len = header[1] * 256 + header[0]; + nlen = header[3] * 256 + header[2]; + if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); + if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); + if (a->zout + len > a->zout_end) + if (!stbi__zexpand(a, a->zout, len)) return 0; + memcpy(a->zout, a->zbuffer, len); + a->zbuffer += len; + a->zout += len; + return 1; +} + +static int stbi__parse_zlib_header(stbi__zbuf *a) +{ + int cmf = stbi__zget8(a); + int cm = cmf & 15; + /* int cinfo = cmf >> 4; */ + int flg = stbi__zget8(a); + if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png + if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png + // window = 1 << (8 + cinfo)... but who cares, we fully buffer output + return 1; +} + +static const stbi_uc stbi__zdefault_length[288] = +{ + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 +}; +static const stbi_uc stbi__zdefault_distance[32] = +{ + 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 +}; +/* +Init algorithm: +{ + int i; // use <= to match clearly with spec + for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8; + for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9; + for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7; + for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8; + + for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5; +} +*/ + +static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) +{ + int final, type; + if (parse_header) + if (!stbi__parse_zlib_header(a)) return 0; + a->num_bits = 0; + a->code_buffer = 0; + do { + final = stbi__zreceive(a,1); + type = stbi__zreceive(a,2); + if (type == 0) { + if (!stbi__parse_uncompressed_block(a)) return 0; + } else if (type == 3) { + return 0; + } else { + if (type == 1) { + // use fixed code lengths + if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , 288)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; + } else { + if (!stbi__compute_huffman_codes(a)) return 0; + } + if (!stbi__parse_huffman_block(a)) return 0; + } + } while (!final); + return 1; +} + +static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) +{ + a->zout_start = obuf; + a->zout = obuf; + a->zout_end = obuf + olen; + a->z_expandable = exp; + + return stbi__parse_zlib(a, parse_header); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) +{ + return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) + return (int) (a.zout - a.zout_start); + else + return -1; +} + +STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(16384); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer+len; + if (stbi__do_zlib(&a, p, 16384, 1, 0)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) + return (int) (a.zout - a.zout_start); + else + return -1; +} +#endif + +// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18 +// simple implementation +// - only 8-bit samples +// - no CRC checking +// - allocates lots of intermediate memory +// - avoids problem of streaming data between subsystems +// - avoids explicit window management +// performance +// - uses stb_zlib, a PD zlib implementation with fast huffman decoding + +#ifndef STBI_NO_PNG +typedef struct +{ + stbi__uint32 length; + stbi__uint32 type; +} stbi__pngchunk; + +static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) +{ + stbi__pngchunk c; + c.length = stbi__get32be(s); + c.type = stbi__get32be(s); + return c; +} + +static int stbi__check_png_header(stbi__context *s) +{ + static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; + int i; + for (i=0; i < 8; ++i) + if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); + return 1; +} + +typedef struct +{ + stbi__context *s; + stbi_uc *idata, *expanded, *out; + int depth; +} stbi__png; + + +enum { + STBI__F_none=0, + STBI__F_sub=1, + STBI__F_up=2, + STBI__F_avg=3, + STBI__F_paeth=4, + // synthetic filters used for first scanline to avoid needing a dummy row of 0s + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static stbi_uc first_row_filter[5] = +{ + STBI__F_none, + STBI__F_sub, + STBI__F_none, + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static int stbi__paeth(int a, int b, int c) +{ + int p = a + b - c; + int pa = abs(p-a); + int pb = abs(p-b); + int pc = abs(p-c); + if (pa <= pb && pa <= pc) return a; + if (pb <= pc) return b; + return c; +} + +static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; + +// create the png data from post-deflated data +static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) +{ + int bytes = (depth == 16? 2 : 1); + stbi__context *s = a->s; + stbi__uint32 i,j,stride = x*out_n*bytes; + stbi__uint32 img_len, img_width_bytes; + int k; + int img_n = s->img_n; // copy it into a local for later + + int output_bytes = out_n*bytes; + int filter_bytes = img_n*bytes; + int width = x; + + STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); + a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into + if (!a->out) return stbi__err("outofmem", "Out of memory"); + + if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); + img_width_bytes = (((img_n * x * depth) + 7) >> 3); + img_len = (img_width_bytes + 1) * y; + + // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, + // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), + // so just check for raw_len < img_len always. + if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); + + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *prior; + int filter = *raw++; + + if (filter > 4) + return stbi__err("invalid filter","Corrupt PNG"); + + if (depth < 8) { + STBI_ASSERT(img_width_bytes <= x); + cur += x*out_n - img_width_bytes; // store output to the rightmost img_len bytes, so we can decode in place + filter_bytes = 1; + width = img_width_bytes; + } + prior = cur - stride; // bugfix: need to compute this after 'cur +=' computation above + + // if first row, use special filter that doesn't sample previous row + if (j == 0) filter = first_row_filter[filter]; + + // handle first byte explicitly + for (k=0; k < filter_bytes; ++k) { + switch (filter) { + case STBI__F_none : cur[k] = raw[k]; break; + case STBI__F_sub : cur[k] = raw[k]; break; + case STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break; + case STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); break; + case STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); break; + case STBI__F_avg_first : cur[k] = raw[k]; break; + case STBI__F_paeth_first: cur[k] = raw[k]; break; + } + } + + if (depth == 8) { + if (img_n != out_n) + cur[img_n] = 255; // first pixel + raw += img_n; + cur += out_n; + prior += out_n; + } else if (depth == 16) { + if (img_n != out_n) { + cur[filter_bytes] = 255; // first pixel top byte + cur[filter_bytes+1] = 255; // first pixel bottom byte + } + raw += filter_bytes; + cur += output_bytes; + prior += output_bytes; + } else { + raw += 1; + cur += 1; + prior += 1; + } + + // this is a little gross, so that we don't switch per-pixel or per-component + if (depth < 8 || img_n == out_n) { + int nk = (width - 1)*filter_bytes; + #define STBI__CASE(f) \ + case f: \ + for (k=0; k < nk; ++k) + switch (filter) { + // "none" filter turns into a memcpy here; make that explicit. + case STBI__F_none: memcpy(cur, raw, nk); break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); } break; + } + #undef STBI__CASE + raw += nk; + } else { + STBI_ASSERT(img_n+1 == out_n); + #define STBI__CASE(f) \ + case f: \ + for (i=x-1; i >= 1; --i, cur[filter_bytes]=255,raw+=filter_bytes,cur+=output_bytes,prior+=output_bytes) \ + for (k=0; k < filter_bytes; ++k) + switch (filter) { + STBI__CASE(STBI__F_none) { cur[k] = raw[k]; } break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k- output_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k- output_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],prior[k],prior[k- output_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k- output_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],0,0)); } break; + } + #undef STBI__CASE + + // the loop above sets the high byte of the pixels' alpha, but for + // 16 bit png files we also need the low byte set. we'll do that here. + if (depth == 16) { + cur = a->out + stride*j; // start at the beginning of the row again + for (i=0; i < x; ++i,cur+=output_bytes) { + cur[filter_bytes+1] = 255; + } + } + } + } + + // we make a separate pass to expand bits to pixels; for performance, + // this could run two scanlines behind the above code, so it won't + // intefere with filtering but will still be in the cache. + if (depth < 8) { + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *in = a->out + stride*j + x*out_n - img_width_bytes; + // unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit + // png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop + stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range + + // note that the final byte might overshoot and write more data than desired. + // we can allocate enough data that this never writes out of memory, but it + // could also overwrite the next scanline. can it overwrite non-empty data + // on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel. + // so we need to explicitly clamp the final ones + + if (depth == 4) { + for (k=x*img_n; k >= 2; k-=2, ++in) { + *cur++ = scale * ((*in >> 4) ); + *cur++ = scale * ((*in ) & 0x0f); + } + if (k > 0) *cur++ = scale * ((*in >> 4) ); + } else if (depth == 2) { + for (k=x*img_n; k >= 4; k-=4, ++in) { + *cur++ = scale * ((*in >> 6) ); + *cur++ = scale * ((*in >> 4) & 0x03); + *cur++ = scale * ((*in >> 2) & 0x03); + *cur++ = scale * ((*in ) & 0x03); + } + if (k > 0) *cur++ = scale * ((*in >> 6) ); + if (k > 1) *cur++ = scale * ((*in >> 4) & 0x03); + if (k > 2) *cur++ = scale * ((*in >> 2) & 0x03); + } else if (depth == 1) { + for (k=x*img_n; k >= 8; k-=8, ++in) { + *cur++ = scale * ((*in >> 7) ); + *cur++ = scale * ((*in >> 6) & 0x01); + *cur++ = scale * ((*in >> 5) & 0x01); + *cur++ = scale * ((*in >> 4) & 0x01); + *cur++ = scale * ((*in >> 3) & 0x01); + *cur++ = scale * ((*in >> 2) & 0x01); + *cur++ = scale * ((*in >> 1) & 0x01); + *cur++ = scale * ((*in ) & 0x01); + } + if (k > 0) *cur++ = scale * ((*in >> 7) ); + if (k > 1) *cur++ = scale * ((*in >> 6) & 0x01); + if (k > 2) *cur++ = scale * ((*in >> 5) & 0x01); + if (k > 3) *cur++ = scale * ((*in >> 4) & 0x01); + if (k > 4) *cur++ = scale * ((*in >> 3) & 0x01); + if (k > 5) *cur++ = scale * ((*in >> 2) & 0x01); + if (k > 6) *cur++ = scale * ((*in >> 1) & 0x01); + } + if (img_n != out_n) { + int q; + // insert alpha = 255 + cur = a->out + stride*j; + if (img_n == 1) { + for (q=x-1; q >= 0; --q) { + cur[q*2+1] = 255; + cur[q*2+0] = cur[q]; + } + } else { + STBI_ASSERT(img_n == 3); + for (q=x-1; q >= 0; --q) { + cur[q*4+3] = 255; + cur[q*4+2] = cur[q*3+2]; + cur[q*4+1] = cur[q*3+1]; + cur[q*4+0] = cur[q*3+0]; + } + } + } + } + } else if (depth == 16) { + // force the image data from big-endian to platform-native. + // this is done in a separate pass due to the decoding relying + // on the data being untouched, but could probably be done + // per-line during decode if care is taken. + stbi_uc *cur = a->out; + stbi__uint16 *cur16 = (stbi__uint16*)cur; + + for(i=0; i < x*y*out_n; ++i,cur16++,cur+=2) { + *cur16 = (cur[0] << 8) | cur[1]; + } + } + + return 1; +} + +static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) +{ + int bytes = (depth == 16 ? 2 : 1); + int out_bytes = out_n * bytes; + stbi_uc *final; + int p; + if (!interlaced) + return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); + + // de-interlacing + final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); + for (p=0; p < 7; ++p) { + int xorig[] = { 0,4,0,2,0,1,0 }; + int yorig[] = { 0,0,4,0,2,0,1 }; + int xspc[] = { 8,8,4,4,2,2,1 }; + int yspc[] = { 8,8,8,4,4,2,2 }; + int i,j,x,y; + // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 + x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; + y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; + if (x && y) { + stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; + if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { + STBI_FREE(final); + return 0; + } + for (j=0; j < y; ++j) { + for (i=0; i < x; ++i) { + int out_y = j*yspc[p]+yorig[p]; + int out_x = i*xspc[p]+xorig[p]; + memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, + a->out + (j*x+i)*out_bytes, out_bytes); + } + } + STBI_FREE(a->out); + image_data += img_len; + image_data_len -= img_len; + } + } + a->out = final; + + return 1; +} + +static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + // compute color-based transparency, assuming we've + // already got 255 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i=0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 255); + p += 2; + } + } else { + for (i=0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi__uint16 *p = (stbi__uint16*) z->out; + + // compute color-based transparency, assuming we've + // already got 65535 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i = 0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 65535); + p += 2; + } + } else { + for (i = 0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) +{ + stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; + stbi_uc *p, *temp_out, *orig = a->out; + + p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); + if (p == NULL) return stbi__err("outofmem", "Out of memory"); + + // between here and free(out) below, exitting would leak + temp_out = p; + + if (pal_img_n == 3) { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p += 3; + } + } else { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p[3] = palette[n+3]; + p += 4; + } + } + STBI_FREE(a->out); + a->out = temp_out; + + STBI_NOTUSED(len); + + return 1; +} + +static int stbi__unpremultiply_on_load = 0; +static int stbi__de_iphone_flag = 0; + +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply; +} + +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag = flag_true_if_should_convert; +} + +static void stbi__de_iphone(stbi__png *z) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + if (s->img_out_n == 3) { // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 3; + } + } else { + STBI_ASSERT(s->img_out_n == 4); + if (stbi__unpremultiply_on_load) { + // convert bgr to rgb and unpremultiply + for (i=0; i < pixel_count; ++i) { + stbi_uc a = p[3]; + stbi_uc t = p[0]; + if (a) { + stbi_uc half = a / 2; + p[0] = (p[2] * 255 + half) / a; + p[1] = (p[1] * 255 + half) / a; + p[2] = ( t * 255 + half) / a; + } else { + p[0] = p[2]; + p[2] = t; + } + p += 4; + } + } else { + // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 4; + } + } + } +} + +#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) + +static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) +{ + stbi_uc palette[1024], pal_img_n=0; + stbi_uc has_trans=0, tc[3]={0}; + stbi__uint16 tc16[3]; + stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; + int first=1,k,interlace=0, color=0, is_iphone=0; + stbi__context *s = z->s; + + z->expanded = NULL; + z->idata = NULL; + z->out = NULL; + + if (!stbi__check_png_header(s)) return 0; + + if (scan == STBI__SCAN_type) return 1; + + for (;;) { + stbi__pngchunk c = stbi__get_chunk_header(s); + switch (c.type) { + case STBI__PNG_TYPE('C','g','B','I'): + is_iphone = 1; + stbi__skip(s, c.length); + break; + case STBI__PNG_TYPE('I','H','D','R'): { + int comp,filter; + if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); + first = 0; + if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); + s->img_x = stbi__get32be(s); if (s->img_x > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)"); + s->img_y = stbi__get32be(s); if (s->img_y > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)"); + z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); + color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); + comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); + filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); + interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); + if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); + if (!pal_img_n) { + s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); + if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); + if (scan == STBI__SCAN_header) return 1; + } else { + // if paletted, then pal_n is our final components, and + // img_n is # components to decompress/filter. + s->img_n = 1; + if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); + // if SCAN_header, have to scan to see if we have a tRNS + } + break; + } + + case STBI__PNG_TYPE('P','L','T','E'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); + pal_len = c.length / 3; + if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); + for (i=0; i < pal_len; ++i) { + palette[i*4+0] = stbi__get8(s); + palette[i*4+1] = stbi__get8(s); + palette[i*4+2] = stbi__get8(s); + palette[i*4+3] = 255; + } + break; + } + + case STBI__PNG_TYPE('t','R','N','S'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); + if (pal_img_n) { + if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } + if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); + if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); + pal_img_n = 4; + for (i=0; i < c.length; ++i) + palette[i*4+3] = stbi__get8(s); + } else { + if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); + if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); + has_trans = 1; + if (z->depth == 16) { + for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is + } else { + for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger + } + } + break; + } + + case STBI__PNG_TYPE('I','D','A','T'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); + if (scan == STBI__SCAN_header) { s->img_n = pal_img_n; return 1; } + if ((int)(ioff + c.length) < (int)ioff) return 0; + if (ioff + c.length > idata_limit) { + stbi__uint32 idata_limit_old = idata_limit; + stbi_uc *p; + if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; + while (ioff + c.length > idata_limit) + idata_limit *= 2; + STBI_NOTUSED(idata_limit_old); + p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); + z->idata = p; + } + if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); + ioff += c.length; + break; + } + + case STBI__PNG_TYPE('I','E','N','D'): { + stbi__uint32 raw_len, bpl; + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (scan != STBI__SCAN_load) return 1; + if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); + // initial guess for decoded data size to avoid unnecessary reallocs + bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component + raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; + z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); + if (z->expanded == NULL) return 0; // zlib should set error + STBI_FREE(z->idata); z->idata = NULL; + if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) + s->img_out_n = s->img_n+1; + else + s->img_out_n = s->img_n; + if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; + if (has_trans) { + if (z->depth == 16) { + if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; + } else { + if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; + } + } + if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) + stbi__de_iphone(z); + if (pal_img_n) { + // pal_img_n == 3 or 4 + s->img_n = pal_img_n; // record the actual colors we had + s->img_out_n = pal_img_n; + if (req_comp >= 3) s->img_out_n = req_comp; + if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) + return 0; + } else if (has_trans) { + // non-paletted image with tRNS -> source image has (constant) alpha + ++s->img_n; + } + STBI_FREE(z->expanded); z->expanded = NULL; + return 1; + } + + default: + // if critical, fail + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if ((c.type & (1 << 29)) == 0) { + #ifndef STBI_NO_FAILURE_STRINGS + // not threadsafe + static char invalid_chunk[] = "XXXX PNG chunk not known"; + invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); + invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); + invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); + invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); + #endif + return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); + } + stbi__skip(s, c.length); + break; + } + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + } +} + +static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) +{ + void *result=NULL; + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { + if (p->depth < 8) + ri->bits_per_channel = 8; + else + ri->bits_per_channel = p->depth; + result = p->out; + p->out = NULL; + if (req_comp && req_comp != p->s->img_out_n) { + if (ri->bits_per_channel == 8) + result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + else + result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + p->s->img_out_n = req_comp; + if (result == NULL) return result; + } + *x = p->s->img_x; + *y = p->s->img_y; + if (n) *n = p->s->img_n; + } + STBI_FREE(p->out); p->out = NULL; + STBI_FREE(p->expanded); p->expanded = NULL; + STBI_FREE(p->idata); p->idata = NULL; + + return result; +} + +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi__png p; + p.s = s; + return stbi__do_png(&p, x,y,comp,req_comp, ri); +} + +static int stbi__png_test(stbi__context *s) +{ + int r; + r = stbi__check_png_header(s); + stbi__rewind(s); + return r; +} + +static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) +{ + if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { + stbi__rewind( p->s ); + return 0; + } + if (x) *x = p->s->img_x; + if (y) *y = p->s->img_y; + if (comp) *comp = p->s->img_n; + return 1; +} + +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__png p; + p.s = s; + return stbi__png_info_raw(&p, x, y, comp); +} + +static int stbi__png_is16(stbi__context *s) +{ + stbi__png p; + p.s = s; + if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) + return 0; + if (p.depth != 16) { + stbi__rewind(p.s); + return 0; + } + return 1; +} +#endif + +// Microsoft/Windows BMP image + +#ifndef STBI_NO_BMP +static int stbi__bmp_test_raw(stbi__context *s) +{ + int r; + int sz; + if (stbi__get8(s) != 'B') return 0; + if (stbi__get8(s) != 'M') return 0; + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + stbi__get32le(s); // discard data offset + sz = stbi__get32le(s); + r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); + return r; +} + +static int stbi__bmp_test(stbi__context *s) +{ + int r = stbi__bmp_test_raw(s); + stbi__rewind(s); + return r; +} + + +// returns 0..31 for the highest set bit +static int stbi__high_bit(unsigned int z) +{ + int n=0; + if (z == 0) return -1; + if (z >= 0x10000) { n += 16; z >>= 16; } + if (z >= 0x00100) { n += 8; z >>= 8; } + if (z >= 0x00010) { n += 4; z >>= 4; } + if (z >= 0x00004) { n += 2; z >>= 2; } + if (z >= 0x00002) { n += 1;/* >>= 1;*/ } + return n; +} + +static int stbi__bitcount(unsigned int a) +{ + a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 + a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 + a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits + a = (a + (a >> 8)); // max 16 per 8 bits + a = (a + (a >> 16)); // max 32 per 8 bits + return a & 0xff; +} + +// extract an arbitrarily-aligned N-bit value (N=bits) +// from v, and then make it 8-bits long and fractionally +// extend it to full full range. +static int stbi__shiftsigned(unsigned int v, int shift, int bits) +{ + static unsigned int mul_table[9] = { + 0, + 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, + 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, + }; + static unsigned int shift_table[9] = { + 0, 0,0,1,0,2,4,6,0, + }; + if (shift < 0) + v <<= -shift; + else + v >>= shift; + STBI_ASSERT(v >= 0 && v < 256); + v >>= (8-bits); + STBI_ASSERT(bits >= 0 && bits <= 8); + return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; +} + +typedef struct +{ + int bpp, offset, hsz; + unsigned int mr,mg,mb,ma, all_a; +} stbi__bmp_data; + +static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) +{ + int hsz; + if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + info->offset = stbi__get32le(s); + info->hsz = hsz = stbi__get32le(s); + info->mr = info->mg = info->mb = info->ma = 0; + + if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); + if (hsz == 12) { + s->img_x = stbi__get16le(s); + s->img_y = stbi__get16le(s); + } else { + s->img_x = stbi__get32le(s); + s->img_y = stbi__get32le(s); + } + if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); + info->bpp = stbi__get16le(s); + if (hsz != 12) { + int compress = stbi__get32le(s); + if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); + stbi__get32le(s); // discard sizeof + stbi__get32le(s); // discard hres + stbi__get32le(s); // discard vres + stbi__get32le(s); // discard colorsused + stbi__get32le(s); // discard max important + if (hsz == 40 || hsz == 56) { + if (hsz == 56) { + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + } + if (info->bpp == 16 || info->bpp == 32) { + if (compress == 0) { + if (info->bpp == 32) { + info->mr = 0xffu << 16; + info->mg = 0xffu << 8; + info->mb = 0xffu << 0; + info->ma = 0xffu << 24; + info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 + } else { + info->mr = 31u << 10; + info->mg = 31u << 5; + info->mb = 31u << 0; + } + } else if (compress == 3) { + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + // not documented, but generated by photoshop and handled by mspaint + if (info->mr == info->mg && info->mg == info->mb) { + // ?!?!? + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else { + int i; + if (hsz != 108 && hsz != 124) + return stbi__errpuc("bad BMP", "bad BMP"); + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->ma = stbi__get32le(s); + stbi__get32le(s); // discard color space + for (i=0; i < 12; ++i) + stbi__get32le(s); // discard color space parameters + if (hsz == 124) { + stbi__get32le(s); // discard rendering intent + stbi__get32le(s); // discard offset of profile data + stbi__get32le(s); // discard size of profile data + stbi__get32le(s); // discard reserved + } + } + } + return (void *) 1; +} + + +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + unsigned int mr=0,mg=0,mb=0,ma=0, all_a; + stbi_uc pal[256][4]; + int psize=0,i,j,width; + int flip_vertically, pad, target; + stbi__bmp_data info; + STBI_NOTUSED(ri); + + info.all_a = 255; + if (stbi__bmp_parse_header(s, &info) == NULL) + return NULL; // error code already set + + flip_vertically = ((int) s->img_y) > 0; + s->img_y = abs((int) s->img_y); + + mr = info.mr; + mg = info.mg; + mb = info.mb; + ma = info.ma; + all_a = info.all_a; + + if (info.hsz == 12) { + if (info.bpp < 24) + psize = (info.offset - 14 - 24) / 3; + } else { + if (info.bpp < 16) + psize = (info.offset - 14 - info.hsz) >> 2; + } + + if (info.bpp == 24 && ma == 0xff000000) + s->img_n = 3; + else + s->img_n = ma ? 4 : 3; + if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 + target = req_comp; + else + target = s->img_n; // if they want monochrome, we'll post-convert + + // sanity-check size + if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "Corrupt BMP"); + + out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (info.bpp < 16) { + int z=0; + if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } + for (i=0; i < psize; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + if (info.hsz != 12) stbi__get8(s); + pal[i][3] = 255; + } + stbi__skip(s, info.offset - 14 - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); + if (info.bpp == 1) width = (s->img_x + 7) >> 3; + else if (info.bpp == 4) width = (s->img_x + 1) >> 1; + else if (info.bpp == 8) width = s->img_x; + else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } + pad = (-width)&3; + if (info.bpp == 1) { + for (j=0; j < (int) s->img_y; ++j) { + int bit_offset = 7, v = stbi__get8(s); + for (i=0; i < (int) s->img_x; ++i) { + int color = (v>>bit_offset)&0x1; + out[z++] = pal[color][0]; + out[z++] = pal[color][1]; + out[z++] = pal[color][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + if((--bit_offset) < 0) { + bit_offset = 7; + v = stbi__get8(s); + } + } + stbi__skip(s, pad); + } + } else { + for (j=0; j < (int) s->img_y; ++j) { + for (i=0; i < (int) s->img_x; i += 2) { + int v=stbi__get8(s),v2=0; + if (info.bpp == 4) { + v2 = v & 15; + v >>= 4; + } + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + v = (info.bpp == 8) ? stbi__get8(s) : v2; + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + } + stbi__skip(s, pad); + } + } + } else { + int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; + int z = 0; + int easy=0; + stbi__skip(s, info.offset - 14 - info.hsz); + if (info.bpp == 24) width = 3 * s->img_x; + else if (info.bpp == 16) width = 2*s->img_x; + else /* bpp = 32 and pad = 0 */ width=0; + pad = (-width) & 3; + if (info.bpp == 24) { + easy = 1; + } else if (info.bpp == 32) { + if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) + easy = 2; + } + if (!easy) { + if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + // right shift amt to put high bit in position #7 + rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); + gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); + bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); + ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); + } + for (j=0; j < (int) s->img_y; ++j) { + if (easy) { + for (i=0; i < (int) s->img_x; ++i) { + unsigned char a; + out[z+2] = stbi__get8(s); + out[z+1] = stbi__get8(s); + out[z+0] = stbi__get8(s); + z += 3; + a = (easy == 2 ? stbi__get8(s) : 255); + all_a |= a; + if (target == 4) out[z++] = a; + } + } else { + int bpp = info.bpp; + for (i=0; i < (int) s->img_x; ++i) { + stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); + unsigned int a; + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); + a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); + all_a |= a; + if (target == 4) out[z++] = STBI__BYTECAST(a); + } + } + stbi__skip(s, pad); + } + } + + // if alpha channel is all 0s, replace with all 255s + if (target == 4 && all_a == 0) + for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) + out[i] = 255; + + if (flip_vertically) { + stbi_uc t; + for (j=0; j < (int) s->img_y>>1; ++j) { + stbi_uc *p1 = out + j *s->img_x*target; + stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; + for (i=0; i < (int) s->img_x*target; ++i) { + t = p1[i]; p1[i] = p2[i]; p2[i] = t; + } + } + } + + if (req_comp && req_comp != target) { + out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + return out; +} +#endif + +// Targa Truevision - TGA +// by Jonathan Dummer +#ifndef STBI_NO_TGA +// returns STBI_rgb or whatever, 0 on error +static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) +{ + // only RGB or RGBA (incl. 16bit) or grey allowed + if (is_rgb16) *is_rgb16 = 0; + switch(bits_per_pixel) { + case 8: return STBI_grey; + case 16: if(is_grey) return STBI_grey_alpha; + // fallthrough + case 15: if(is_rgb16) *is_rgb16 = 1; + return STBI_rgb; + case 24: // fallthrough + case 32: return bits_per_pixel/8; + default: return 0; + } +} + +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) +{ + int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; + int sz, tga_colormap_type; + stbi__get8(s); // discard Offset + tga_colormap_type = stbi__get8(s); // colormap type + if( tga_colormap_type > 1 ) { + stbi__rewind(s); + return 0; // only RGB or indexed allowed + } + tga_image_type = stbi__get8(s); // image type + if ( tga_colormap_type == 1 ) { // colormapped (paletted) image + if (tga_image_type != 1 && tga_image_type != 9) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip image x and y origin + tga_colormap_bpp = sz; + } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE + if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { + stbi__rewind(s); + return 0; // only RGB or grey allowed, +/- RLE + } + stbi__skip(s,9); // skip colormap specification and image x/y origin + tga_colormap_bpp = 0; + } + tga_w = stbi__get16le(s); + if( tga_w < 1 ) { + stbi__rewind(s); + return 0; // test width + } + tga_h = stbi__get16le(s); + if( tga_h < 1 ) { + stbi__rewind(s); + return 0; // test height + } + tga_bits_per_pixel = stbi__get8(s); // bits per pixel + stbi__get8(s); // ignore alpha bits + if (tga_colormap_bpp != 0) { + if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { + // when using a colormap, tga_bits_per_pixel is the size of the indexes + // I don't think anything but 8 or 16bit indexes makes sense + stbi__rewind(s); + return 0; + } + tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); + } else { + tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); + } + if(!tga_comp) { + stbi__rewind(s); + return 0; + } + if (x) *x = tga_w; + if (y) *y = tga_h; + if (comp) *comp = tga_comp; + return 1; // seems to have passed everything +} + +static int stbi__tga_test(stbi__context *s) +{ + int res = 0; + int sz, tga_color_type; + stbi__get8(s); // discard Offset + tga_color_type = stbi__get8(s); // color type + if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed + sz = stbi__get8(s); // image type + if ( tga_color_type == 1 ) { // colormapped (paletted) image + if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + stbi__skip(s,4); // skip image x and y origin + } else { // "normal" image w/o colormap + if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE + stbi__skip(s,9); // skip colormap specification and image x/y origin + } + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height + sz = stbi__get8(s); // bits per pixel + if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + + res = 1; // if we got this far, everything's good and we can return 1 instead of 0 + +errorEnd: + stbi__rewind(s); + return res; +} + +// read 16bit value and convert to 24bit RGB +static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) +{ + stbi__uint16 px = (stbi__uint16)stbi__get16le(s); + stbi__uint16 fiveBitMask = 31; + // we have 3 channels with 5bits each + int r = (px >> 10) & fiveBitMask; + int g = (px >> 5) & fiveBitMask; + int b = px & fiveBitMask; + // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later + out[0] = (stbi_uc)((r * 255)/31); + out[1] = (stbi_uc)((g * 255)/31); + out[2] = (stbi_uc)((b * 255)/31); + + // some people claim that the most significant bit might be used for alpha + // (possibly if an alpha-bit is set in the "image descriptor byte") + // but that only made 16bit test images completely translucent.. + // so let's treat all 15 and 16bit TGAs as RGB with no alpha. +} + +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + // read in the TGA header stuff + int tga_offset = stbi__get8(s); + int tga_indexed = stbi__get8(s); + int tga_image_type = stbi__get8(s); + int tga_is_RLE = 0; + int tga_palette_start = stbi__get16le(s); + int tga_palette_len = stbi__get16le(s); + int tga_palette_bits = stbi__get8(s); + int tga_x_origin = stbi__get16le(s); + int tga_y_origin = stbi__get16le(s); + int tga_width = stbi__get16le(s); + int tga_height = stbi__get16le(s); + int tga_bits_per_pixel = stbi__get8(s); + int tga_comp, tga_rgb16=0; + int tga_inverted = stbi__get8(s); + // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) + // image data + unsigned char *tga_data; + unsigned char *tga_palette = NULL; + int i, j; + unsigned char raw_data[4] = {0}; + int RLE_count = 0; + int RLE_repeating = 0; + int read_next_pixel = 1; + STBI_NOTUSED(ri); + STBI_NOTUSED(tga_x_origin); // @TODO + STBI_NOTUSED(tga_y_origin); // @TODO + + // do a tiny bit of precessing + if ( tga_image_type >= 8 ) + { + tga_image_type -= 8; + tga_is_RLE = 1; + } + tga_inverted = 1 - ((tga_inverted >> 5) & 1); + + // If I'm paletted, then I'll use the number of bits from the palette + if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); + else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); + + if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency + return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); + + // tga info + *x = tga_width; + *y = tga_height; + if (comp) *comp = tga_comp; + + if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) + return stbi__errpuc("too large", "Corrupt TGA"); + + tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); + if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); + + // skip to the data's starting position (offset usually = 0) + stbi__skip(s, tga_offset ); + + if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { + for (i=0; i < tga_height; ++i) { + int row = tga_inverted ? tga_height -i - 1 : i; + stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; + stbi__getn(s, tga_row, tga_width * tga_comp); + } + } else { + // do I need to load a palette? + if ( tga_indexed) + { + // any data to skip? (offset usually = 0) + stbi__skip(s, tga_palette_start ); + // load the palette + tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); + if (!tga_palette) { + STBI_FREE(tga_data); + return stbi__errpuc("outofmem", "Out of memory"); + } + if (tga_rgb16) { + stbi_uc *pal_entry = tga_palette; + STBI_ASSERT(tga_comp == STBI_rgb); + for (i=0; i < tga_palette_len; ++i) { + stbi__tga_read_rgb16(s, pal_entry); + pal_entry += tga_comp; + } + } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { + STBI_FREE(tga_data); + STBI_FREE(tga_palette); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + } + // load the data + for (i=0; i < tga_width * tga_height; ++i) + { + // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? + if ( tga_is_RLE ) + { + if ( RLE_count == 0 ) + { + // yep, get the next byte as a RLE command + int RLE_cmd = stbi__get8(s); + RLE_count = 1 + (RLE_cmd & 127); + RLE_repeating = RLE_cmd >> 7; + read_next_pixel = 1; + } else if ( !RLE_repeating ) + { + read_next_pixel = 1; + } + } else + { + read_next_pixel = 1; + } + // OK, if I need to read a pixel, do it now + if ( read_next_pixel ) + { + // load however much data we did have + if ( tga_indexed ) + { + // read in index, then perform the lookup + int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); + if ( pal_idx >= tga_palette_len ) { + // invalid index + pal_idx = 0; + } + pal_idx *= tga_comp; + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = tga_palette[pal_idx+j]; + } + } else if(tga_rgb16) { + STBI_ASSERT(tga_comp == STBI_rgb); + stbi__tga_read_rgb16(s, raw_data); + } else { + // read in the data raw + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = stbi__get8(s); + } + } + // clear the reading flag for the next pixel + read_next_pixel = 0; + } // end of reading a pixel + + // copy data + for (j = 0; j < tga_comp; ++j) + tga_data[i*tga_comp+j] = raw_data[j]; + + // in case we're in RLE mode, keep counting down + --RLE_count; + } + // do I need to invert the image? + if ( tga_inverted ) + { + for (j = 0; j*2 < tga_height; ++j) + { + int index1 = j * tga_width * tga_comp; + int index2 = (tga_height - 1 - j) * tga_width * tga_comp; + for (i = tga_width * tga_comp; i > 0; --i) + { + unsigned char temp = tga_data[index1]; + tga_data[index1] = tga_data[index2]; + tga_data[index2] = temp; + ++index1; + ++index2; + } + } + } + // clear my palette, if I had one + if ( tga_palette != NULL ) + { + STBI_FREE( tga_palette ); + } + } + + // swap RGB - if the source data was RGB16, it already is in the right order + if (tga_comp >= 3 && !tga_rgb16) + { + unsigned char* tga_pixel = tga_data; + for (i=0; i < tga_width * tga_height; ++i) + { + unsigned char temp = tga_pixel[0]; + tga_pixel[0] = tga_pixel[2]; + tga_pixel[2] = temp; + tga_pixel += tga_comp; + } + } + + // convert to target component count + if (req_comp && req_comp != tga_comp) + tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); + + // the things I do to get rid of an error message, and yet keep + // Microsoft's C compilers happy... [8^( + tga_palette_start = tga_palette_len = tga_palette_bits = + tga_x_origin = tga_y_origin = 0; + STBI_NOTUSED(tga_palette_start); + // OK, done + return tga_data; +} +#endif + +// ************************************************************************************************* +// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s) +{ + int r = (stbi__get32be(s) == 0x38425053); + stbi__rewind(s); + return r; +} + +static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) +{ + int count, nleft, len; + + count = 0; + while ((nleft = pixelCount - count) > 0) { + len = stbi__get8(s); + if (len == 128) { + // No-op. + } else if (len < 128) { + // Copy next len+1 bytes literally. + len++; + if (len > nleft) return 0; // corrupt data + count += len; + while (len) { + *p = stbi__get8(s); + p += 4; + len--; + } + } else if (len > 128) { + stbi_uc val; + // Next -len+1 bytes in the dest are replicated from next source byte. + // (Interpret len as a negative 8-bit int.) + len = 257 - len; + if (len > nleft) return 0; // corrupt data + val = stbi__get8(s); + count += len; + while (len) { + *p = val; + p += 4; + len--; + } + } + } + + return 1; +} + +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + int pixelCount; + int channelCount, compression; + int channel, i; + int bitdepth; + int w,h; + stbi_uc *out; + STBI_NOTUSED(ri); + + // Check identifier + if (stbi__get32be(s) != 0x38425053) // "8BPS" + return stbi__errpuc("not PSD", "Corrupt PSD image"); + + // Check file type version. + if (stbi__get16be(s) != 1) + return stbi__errpuc("wrong version", "Unsupported version of PSD image"); + + // Skip 6 reserved bytes. + stbi__skip(s, 6 ); + + // Read the number of channels (R, G, B, A, etc). + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) + return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); + + // Read the rows and columns of the image. + h = stbi__get32be(s); + w = stbi__get32be(s); + + // Make sure the depth is 8 bits. + bitdepth = stbi__get16be(s); + if (bitdepth != 8 && bitdepth != 16) + return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); + + // Make sure the color mode is RGB. + // Valid options are: + // 0: Bitmap + // 1: Grayscale + // 2: Indexed color + // 3: RGB color + // 4: CMYK color + // 7: Multichannel + // 8: Duotone + // 9: Lab color + if (stbi__get16be(s) != 3) + return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); + + // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) + stbi__skip(s,stbi__get32be(s) ); + + // Skip the image resources. (resolution, pen tool paths, etc) + stbi__skip(s, stbi__get32be(s) ); + + // Skip the reserved data. + stbi__skip(s, stbi__get32be(s) ); + + // Find out if the data is compressed. + // Known values: + // 0: no compression + // 1: RLE compressed + compression = stbi__get16be(s); + if (compression > 1) + return stbi__errpuc("bad compression", "PSD has an unknown compression format"); + + // Check size + if (!stbi__mad3sizes_valid(4, w, h, 0)) + return stbi__errpuc("too large", "Corrupt PSD"); + + // Create the destination image. + + if (!compression && bitdepth == 16 && bpc == 16) { + out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); + ri->bits_per_channel = 16; + } else + out = (stbi_uc *) stbi__malloc(4 * w*h); + + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + pixelCount = w*h; + + // Initialize the data to zero. + //memset( out, 0, pixelCount * 4 ); + + // Finally, the image data. + if (compression) { + // RLE as used by .PSD and .TIFF + // Loop until you get the number of unpacked bytes you are expecting: + // Read the next source byte into n. + // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. + // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. + // Else if n is 128, noop. + // Endloop + + // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, + // which we're going to just skip. + stbi__skip(s, h * channelCount * 2 ); + + // Read the RLE data by channel. + for (channel = 0; channel < 4; channel++) { + stbi_uc *p; + + p = out+channel; + if (channel >= channelCount) { + // Fill this channel with default data. + for (i = 0; i < pixelCount; i++, p += 4) + *p = (channel == 3 ? 255 : 0); + } else { + // Read the RLE data. + if (!stbi__psd_decode_rle(s, p, pixelCount)) { + STBI_FREE(out); + return stbi__errpuc("corrupt", "bad RLE data"); + } + } + } + + } else { + // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) + // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. + + // Read the data by channel. + for (channel = 0; channel < 4; channel++) { + if (channel >= channelCount) { + // Fill this channel with default data. + if (bitdepth == 16 && bpc == 16) { + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + stbi__uint16 val = channel == 3 ? 65535 : 0; + for (i = 0; i < pixelCount; i++, q += 4) + *q = val; + } else { + stbi_uc *p = out+channel; + stbi_uc val = channel == 3 ? 255 : 0; + for (i = 0; i < pixelCount; i++, p += 4) + *p = val; + } + } else { + if (ri->bits_per_channel == 16) { // output bpc + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + for (i = 0; i < pixelCount; i++, q += 4) + *q = (stbi__uint16) stbi__get16be(s); + } else { + stbi_uc *p = out+channel; + if (bitdepth == 16) { // input bpc + for (i = 0; i < pixelCount; i++, p += 4) + *p = (stbi_uc) (stbi__get16be(s) >> 8); + } else { + for (i = 0; i < pixelCount; i++, p += 4) + *p = stbi__get8(s); + } + } + } + } + } + + // remove weird white matte from PSD + if (channelCount >= 4) { + if (ri->bits_per_channel == 16) { + for (i=0; i < w*h; ++i) { + stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; + if (pixel[3] != 0 && pixel[3] != 65535) { + float a = pixel[3] / 65535.0f; + float ra = 1.0f / a; + float inv_a = 65535.0f * (1 - ra); + pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); + pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); + pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); + } + } + } else { + for (i=0; i < w*h; ++i) { + unsigned char *pixel = out + 4*i; + if (pixel[3] != 0 && pixel[3] != 255) { + float a = pixel[3] / 255.0f; + float ra = 1.0f / a; + float inv_a = 255.0f * (1 - ra); + pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); + pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); + pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); + } + } + } + } + + // convert to desired output format + if (req_comp && req_comp != 4) { + if (ri->bits_per_channel == 16) + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); + else + out = stbi__convert_format(out, 4, req_comp, w, h); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + if (comp) *comp = 4; + *y = h; + *x = w; + + return out; +} +#endif + +// ************************************************************************************************* +// Softimage PIC loader +// by Tom Seddon +// +// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format +// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ + +#ifndef STBI_NO_PIC +static int stbi__pic_is4(stbi__context *s,const char *str) +{ + int i; + for (i=0; i<4; ++i) + if (stbi__get8(s) != (stbi_uc)str[i]) + return 0; + + return 1; +} + +static int stbi__pic_test_core(stbi__context *s) +{ + int i; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) + return 0; + + for(i=0;i<84;++i) + stbi__get8(s); + + if (!stbi__pic_is4(s,"PICT")) + return 0; + + return 1; +} + +typedef struct +{ + stbi_uc size,type,channel; +} stbi__pic_packet; + +static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) +{ + int mask=0x80, i; + + for (i=0; i<4; ++i, mask>>=1) { + if (channel & mask) { + if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); + dest[i]=stbi__get8(s); + } + } + + return dest; +} + +static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) +{ + int mask=0x80,i; + + for (i=0;i<4; ++i, mask>>=1) + if (channel&mask) + dest[i]=src[i]; +} + +static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) +{ + int act_comp=0,num_packets=0,y,chained; + stbi__pic_packet packets[10]; + + // this will (should...) cater for even some bizarre stuff like having data + // for the same channel in multiple packets. + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return stbi__errpuc("bad format","too many packets"); + + packet = &packets[num_packets++]; + + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + + act_comp |= packet->channel; + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); + if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? + + for(y=0; ytype) { + default: + return stbi__errpuc("bad format","packet has bad compression type"); + + case 0: {//uncompressed + int x; + + for(x=0;xchannel,dest)) + return 0; + break; + } + + case 1://Pure RLE + { + int left=width, i; + + while (left>0) { + stbi_uc count,value[4]; + + count=stbi__get8(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); + + if (count > left) + count = (stbi_uc) left; + + if (!stbi__readval(s,packet->channel,value)) return 0; + + for(i=0; ichannel,dest,value); + left -= count; + } + } + break; + + case 2: {//Mixed RLE + int left=width; + while (left>0) { + int count = stbi__get8(s), i; + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); + + if (count >= 128) { // Repeated + stbi_uc value[4]; + + if (count==128) + count = stbi__get16be(s); + else + count -= 127; + if (count > left) + return stbi__errpuc("bad file","scanline overrun"); + + if (!stbi__readval(s,packet->channel,value)) + return 0; + + for(i=0;ichannel,dest,value); + } else { // Raw + ++count; + if (count>left) return stbi__errpuc("bad file","scanline overrun"); + + for(i=0;ichannel,dest)) + return 0; + } + left-=count; + } + break; + } + } + } + } + + return result; +} + +static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) +{ + stbi_uc *result; + int i, x,y, internal_comp; + STBI_NOTUSED(ri); + + if (!comp) comp = &internal_comp; + + for (i=0; i<92; ++i) + stbi__get8(s); + + x = stbi__get16be(s); + y = stbi__get16be(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); + if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); + + stbi__get32be(s); //skip `ratio' + stbi__get16be(s); //skip `fields' + stbi__get16be(s); //skip `pad' + + // intermediate buffer is RGBA + result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); + memset(result, 0xff, x*y*4); + + if (!stbi__pic_load_core(s,x,y,comp, result)) { + STBI_FREE(result); + result=0; + } + *px = x; + *py = y; + if (req_comp == 0) req_comp = *comp; + result=stbi__convert_format(result,4,req_comp,x,y); + + return result; +} + +static int stbi__pic_test(stbi__context *s) +{ + int r = stbi__pic_test_core(s); + stbi__rewind(s); + return r; +} +#endif + +// ************************************************************************************************* +// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb + +#ifndef STBI_NO_GIF +typedef struct +{ + stbi__int16 prefix; + stbi_uc first; + stbi_uc suffix; +} stbi__gif_lzw; + +typedef struct +{ + int w,h; + stbi_uc *out; // output buffer (always 4 components) + stbi_uc *background; // The current "background" as far as a gif is concerned + stbi_uc *history; + int flags, bgindex, ratio, transparent, eflags; + stbi_uc pal[256][4]; + stbi_uc lpal[256][4]; + stbi__gif_lzw codes[8192]; + stbi_uc *color_table; + int parse, step; + int lflags; + int start_x, start_y; + int max_x, max_y; + int cur_x, cur_y; + int line_size; + int delay; +} stbi__gif; + +static int stbi__gif_test_raw(stbi__context *s) +{ + int sz; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; + sz = stbi__get8(s); + if (sz != '9' && sz != '7') return 0; + if (stbi__get8(s) != 'a') return 0; + return 1; +} + +static int stbi__gif_test(stbi__context *s) +{ + int r = stbi__gif_test_raw(s); + stbi__rewind(s); + return r; +} + +static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) +{ + int i; + for (i=0; i < num_entries; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + pal[i][3] = transp == i ? 0 : 255; + } +} + +static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) +{ + stbi_uc version; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') + return stbi__err("not GIF", "Corrupt GIF"); + + version = stbi__get8(s); + if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); + if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); + + stbi__g_failure_reason = ""; + g->w = stbi__get16le(s); + g->h = stbi__get16le(s); + g->flags = stbi__get8(s); + g->bgindex = stbi__get8(s); + g->ratio = stbi__get8(s); + g->transparent = -1; + + if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments + + if (is_info) return 1; + + if (g->flags & 0x80) + stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); + + return 1; +} + +static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); + if (!stbi__gif_header(s, g, comp, 1)) { + STBI_FREE(g); + stbi__rewind( s ); + return 0; + } + if (x) *x = g->w; + if (y) *y = g->h; + STBI_FREE(g); + return 1; +} + +static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) +{ + stbi_uc *p, *c; + int idx; + + // recurse to decode the prefixes, since the linked-list is backwards, + // and working backwards through an interleaved image would be nasty + if (g->codes[code].prefix >= 0) + stbi__out_gif_code(g, g->codes[code].prefix); + + if (g->cur_y >= g->max_y) return; + + idx = g->cur_x + g->cur_y; + p = &g->out[idx]; + g->history[idx / 4] = 1; + + c = &g->color_table[g->codes[code].suffix * 4]; + if (c[3] > 128) { // don't render transparent pixels; + p[0] = c[2]; + p[1] = c[1]; + p[2] = c[0]; + p[3] = c[3]; + } + g->cur_x += 4; + + if (g->cur_x >= g->max_x) { + g->cur_x = g->start_x; + g->cur_y += g->step; + + while (g->cur_y >= g->max_y && g->parse > 0) { + g->step = (1 << g->parse) * g->line_size; + g->cur_y = g->start_y + (g->step >> 1); + --g->parse; + } + } +} + +static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) +{ + stbi_uc lzw_cs; + stbi__int32 len, init_code; + stbi__uint32 first; + stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; + stbi__gif_lzw *p; + + lzw_cs = stbi__get8(s); + if (lzw_cs > 12) return NULL; + clear = 1 << lzw_cs; + first = 1; + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + bits = 0; + valid_bits = 0; + for (init_code = 0; init_code < clear; init_code++) { + g->codes[init_code].prefix = -1; + g->codes[init_code].first = (stbi_uc) init_code; + g->codes[init_code].suffix = (stbi_uc) init_code; + } + + // support no starting clear code + avail = clear+2; + oldcode = -1; + + len = 0; + for(;;) { + if (valid_bits < codesize) { + if (len == 0) { + len = stbi__get8(s); // start new block + if (len == 0) + return g->out; + } + --len; + bits |= (stbi__int32) stbi__get8(s) << valid_bits; + valid_bits += 8; + } else { + stbi__int32 code = bits & codemask; + bits >>= codesize; + valid_bits -= codesize; + // @OPTIMIZE: is there some way we can accelerate the non-clear path? + if (code == clear) { // clear code + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + avail = clear + 2; + oldcode = -1; + first = 0; + } else if (code == clear + 1) { // end of stream code + stbi__skip(s, len); + while ((len = stbi__get8(s)) > 0) + stbi__skip(s,len); + return g->out; + } else if (code <= avail) { + if (first) { + return stbi__errpuc("no clear code", "Corrupt GIF"); + } + + if (oldcode >= 0) { + p = &g->codes[avail++]; + if (avail > 8192) { + return stbi__errpuc("too many codes", "Corrupt GIF"); + } + + p->prefix = (stbi__int16) oldcode; + p->first = g->codes[oldcode].first; + p->suffix = (code == avail) ? p->first : g->codes[code].first; + } else if (code == avail) + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + + stbi__out_gif_code(g, (stbi__uint16) code); + + if ((avail & codemask) == 0 && avail <= 0x0FFF) { + codesize++; + codemask = (1 << codesize) - 1; + } + + oldcode = code; + } else { + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + } + } + } +} + +// this function is designed to support animated gifs, although stb_image doesn't support it +// two back is the image from two frames ago, used for a very specific disposal format +static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) +{ + int dispose; + int first_frame; + int pi; + int pcount; + STBI_NOTUSED(req_comp); + + // on first frame, any non-written pixels get the background colour (non-transparent) + first_frame = 0; + if (g->out == 0) { + if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header + if (!stbi__mad3sizes_valid(4, g->w, g->h, 0)) + return stbi__errpuc("too large", "GIF image is too large"); + pcount = g->w * g->h; + g->out = (stbi_uc *) stbi__malloc(4 * pcount); + g->background = (stbi_uc *) stbi__malloc(4 * pcount); + g->history = (stbi_uc *) stbi__malloc(pcount); + if (!g->out || !g->background || !g->history) + return stbi__errpuc("outofmem", "Out of memory"); + + // image is treated as "transparent" at the start - ie, nothing overwrites the current background; + // background colour is only used for pixels that are not rendered first frame, after that "background" + // color refers to the color that was there the previous frame. + memset(g->out, 0x00, 4 * pcount); + memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) + memset(g->history, 0x00, pcount); // pixels that were affected previous frame + first_frame = 1; + } else { + // second frame - how do we dispoase of the previous one? + dispose = (g->eflags & 0x1C) >> 2; + pcount = g->w * g->h; + + if ((dispose == 3) && (two_back == 0)) { + dispose = 2; // if I don't have an image to revert back to, default to the old background + } + + if (dispose == 3) { // use previous graphic + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); + } + } + } else if (dispose == 2) { + // restore what was changed last frame to background before that frame; + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); + } + } + } else { + // This is a non-disposal case eithe way, so just + // leave the pixels as is, and they will become the new background + // 1: do not dispose + // 0: not specified. + } + + // background is what out is after the undoing of the previou frame; + memcpy( g->background, g->out, 4 * g->w * g->h ); + } + + // clear my history; + memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame + + for (;;) { + int tag = stbi__get8(s); + switch (tag) { + case 0x2C: /* Image Descriptor */ + { + stbi__int32 x, y, w, h; + stbi_uc *o; + + x = stbi__get16le(s); + y = stbi__get16le(s); + w = stbi__get16le(s); + h = stbi__get16le(s); + if (((x + w) > (g->w)) || ((y + h) > (g->h))) + return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); + + g->line_size = g->w * 4; + g->start_x = x * 4; + g->start_y = y * g->line_size; + g->max_x = g->start_x + w * 4; + g->max_y = g->start_y + h * g->line_size; + g->cur_x = g->start_x; + g->cur_y = g->start_y; + + // if the width of the specified rectangle is 0, that means + // we may not see *any* pixels or the image is malformed; + // to make sure this is caught, move the current y down to + // max_y (which is what out_gif_code checks). + if (w == 0) + g->cur_y = g->max_y; + + g->lflags = stbi__get8(s); + + if (g->lflags & 0x40) { + g->step = 8 * g->line_size; // first interlaced spacing + g->parse = 3; + } else { + g->step = g->line_size; + g->parse = 0; + } + + if (g->lflags & 0x80) { + stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); + g->color_table = (stbi_uc *) g->lpal; + } else if (g->flags & 0x80) { + g->color_table = (stbi_uc *) g->pal; + } else + return stbi__errpuc("missing color table", "Corrupt GIF"); + + o = stbi__process_gif_raster(s, g); + if (!o) return NULL; + + // if this was the first frame, + pcount = g->w * g->h; + if (first_frame && (g->bgindex > 0)) { + // if first frame, any pixel not drawn to gets the background color + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi] == 0) { + g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; + memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); + } + } + } + + return o; + } + + case 0x21: // Comment Extension. + { + int len; + int ext = stbi__get8(s); + if (ext == 0xF9) { // Graphic Control Extension. + len = stbi__get8(s); + if (len == 4) { + g->eflags = stbi__get8(s); + g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. + + // unset old transparent + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 255; + } + if (g->eflags & 0x01) { + g->transparent = stbi__get8(s); + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 0; + } + } else { + // don't need transparent + stbi__skip(s, 1); + g->transparent = -1; + } + } else { + stbi__skip(s, len); + break; + } + } + while ((len = stbi__get8(s)) != 0) { + stbi__skip(s, len); + } + break; + } + + case 0x3B: // gif stream termination code + return (stbi_uc *) s; // using '1' causes warning on some compilers + + default: + return stbi__errpuc("unknown code", "Corrupt GIF"); + } + } +} + +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + if (stbi__gif_test(s)) { + int layers = 0; + stbi_uc *u = 0; + stbi_uc *out = 0; + stbi_uc *two_back = 0; + stbi__gif g; + int stride; + memset(&g, 0, sizeof(g)); + if (delays) { + *delays = 0; + } + + do { + u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + + if (u) { + *x = g.w; + *y = g.h; + ++layers; + stride = g.w * g.h * 4; + + if (out) { + out = (stbi_uc*) STBI_REALLOC( out, layers * stride ); + if (delays) { + *delays = (int*) STBI_REALLOC( *delays, sizeof(int) * layers ); + } + } else { + out = (stbi_uc*)stbi__malloc( layers * stride ); + if (delays) { + *delays = (int*) stbi__malloc( layers * sizeof(int) ); + } + } + memcpy( out + ((layers - 1) * stride), u, stride ); + if (layers >= 2) { + two_back = out - 2 * stride; + } + + if (delays) { + (*delays)[layers - 1U] = g.delay; + } + } + } while (u != 0); + + // free temp buffer; + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + + // do the final conversion after loading everything; + if (req_comp && req_comp != 4) + out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); + + *z = layers; + return out; + } else { + return stbi__errpuc("not GIF", "Image was not as a gif type."); + } +} + +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *u = 0; + stbi__gif g; + memset(&g, 0, sizeof(g)); + STBI_NOTUSED(ri); + + u = stbi__gif_load_next(s, &g, comp, req_comp, 0); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + if (u) { + *x = g.w; + *y = g.h; + + // moved conversion to after successful load so that the same + // can be done for multiple frames. + if (req_comp && req_comp != 4) + u = stbi__convert_format(u, 4, req_comp, g.w, g.h); + } else if (g.out) { + // if there was an error and we allocated an image buffer, free it! + STBI_FREE(g.out); + } + + // free buffers needed for multiple frame loading; + STBI_FREE(g.history); + STBI_FREE(g.background); + + return u; +} + +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) +{ + return stbi__gif_info_raw(s,x,y,comp); +} +#endif + +// ************************************************************************************************* +// Radiance RGBE HDR loader +// originally by Nicolas Schulz +#ifndef STBI_NO_HDR +static int stbi__hdr_test_core(stbi__context *s, const char *signature) +{ + int i; + for (i=0; signature[i]; ++i) + if (stbi__get8(s) != signature[i]) + return 0; + stbi__rewind(s); + return 1; +} + +static int stbi__hdr_test(stbi__context* s) +{ + int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); + stbi__rewind(s); + if(!r) { + r = stbi__hdr_test_core(s, "#?RGBE\n"); + stbi__rewind(s); + } + return r; +} + +#define STBI__HDR_BUFLEN 1024 +static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) +{ + int len=0; + char c = '\0'; + + c = (char) stbi__get8(z); + + while (!stbi__at_eof(z) && c != '\n') { + buffer[len++] = c; + if (len == STBI__HDR_BUFLEN-1) { + // flush to end of line + while (!stbi__at_eof(z) && stbi__get8(z) != '\n') + ; + break; + } + c = (char) stbi__get8(z); + } + + buffer[len] = 0; + return buffer; +} + +static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) +{ + if ( input[3] != 0 ) { + float f1; + // Exponent + f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); + if (req_comp <= 2) + output[0] = (input[0] + input[1] + input[2]) * f1 / 3; + else { + output[0] = input[0] * f1; + output[1] = input[1] * f1; + output[2] = input[2] * f1; + } + if (req_comp == 2) output[1] = 1; + if (req_comp == 4) output[3] = 1; + } else { + switch (req_comp) { + case 4: output[3] = 1; /* fallthrough */ + case 3: output[0] = output[1] = output[2] = 0; + break; + case 2: output[1] = 1; /* fallthrough */ + case 1: output[0] = 0; + break; + } + } +} + +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int width, height; + stbi_uc *scanline; + float *hdr_data; + int len; + unsigned char count, value; + int i, j, k, c1,c2, z; + const char *headerToken; + STBI_NOTUSED(ri); + + // Check identifier + headerToken = stbi__hdr_gettoken(s,buffer); + if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) + return stbi__errpf("not HDR", "Corrupt HDR image"); + + // Parse header + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); + + // Parse width and height + // can't use sscanf() if we're not using stdio! + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + height = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + width = (int) strtol(token, NULL, 10); + + *x = width; + *y = height; + + if (comp) *comp = 3; + if (req_comp == 0) req_comp = 3; + + if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) + return stbi__errpf("too large", "HDR image is too large"); + + // Read data + hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); + if (!hdr_data) + return stbi__errpf("outofmem", "Out of memory"); + + // Load image data + // image data is stored as some number of sca + if ( width < 8 || width >= 32768) { + // Read flat data + for (j=0; j < height; ++j) { + for (i=0; i < width; ++i) { + stbi_uc rgbe[4]; + main_decode_loop: + stbi__getn(s, rgbe, 4); + stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); + } + } + } else { + // Read RLE-encoded data + scanline = NULL; + + for (j = 0; j < height; ++j) { + c1 = stbi__get8(s); + c2 = stbi__get8(s); + len = stbi__get8(s); + if (c1 != 2 || c2 != 2 || (len & 0x80)) { + // not run-length encoded, so we have to actually use THIS data as a decoded + // pixel (note this can't be a valid pixel--one of RGB must be >= 128) + stbi_uc rgbe[4]; + rgbe[0] = (stbi_uc) c1; + rgbe[1] = (stbi_uc) c2; + rgbe[2] = (stbi_uc) len; + rgbe[3] = (stbi_uc) stbi__get8(s); + stbi__hdr_convert(hdr_data, rgbe, req_comp); + i = 1; + j = 0; + STBI_FREE(scanline); + goto main_decode_loop; // yes, this makes no sense + } + len <<= 8; + len |= stbi__get8(s); + if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } + if (scanline == NULL) { + scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); + if (!scanline) { + STBI_FREE(hdr_data); + return stbi__errpf("outofmem", "Out of memory"); + } + } + + for (k = 0; k < 4; ++k) { + int nleft; + i = 0; + while ((nleft = width - i) > 0) { + count = stbi__get8(s); + if (count > 128) { + // Run + value = stbi__get8(s); + count -= 128; + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = value; + } else { + // Dump + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = stbi__get8(s); + } + } + } + for (i=0; i < width; ++i) + stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); + } + if (scanline) + STBI_FREE(scanline); + } + + return hdr_data; +} + +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int dummy; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (stbi__hdr_test(s) == 0) { + stbi__rewind( s ); + return 0; + } + + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) { + stbi__rewind( s ); + return 0; + } + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *y = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *x = (int) strtol(token, NULL, 10); + *comp = 3; + return 1; +} +#endif // STBI_NO_HDR + +#ifndef STBI_NO_BMP +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) +{ + void *p; + stbi__bmp_data info; + + info.all_a = 255; + p = stbi__bmp_parse_header(s, &info); + stbi__rewind( s ); + if (p == NULL) + return 0; + if (x) *x = s->img_x; + if (y) *y = s->img_y; + if (comp) { + if (info.bpp == 24 && info.ma == 0xff000000) + *comp = 3; + else + *comp = info.ma ? 4 : 3; + } + return 1; +} +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) +{ + int channelCount, dummy, depth; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + *y = stbi__get32be(s); + *x = stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 8 && depth != 16) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 3) { + stbi__rewind( s ); + return 0; + } + *comp = 4; + return 1; +} + +static int stbi__psd_is16(stbi__context *s) +{ + int channelCount, depth; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + (void) stbi__get32be(s); + (void) stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 16) { + stbi__rewind( s ); + return 0; + } + return 1; +} +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) +{ + int act_comp=0,num_packets=0,chained,dummy; + stbi__pic_packet packets[10]; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { + stbi__rewind(s); + return 0; + } + + stbi__skip(s, 88); + + *x = stbi__get16be(s); + *y = stbi__get16be(s); + if (stbi__at_eof(s)) { + stbi__rewind( s); + return 0; + } + if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { + stbi__rewind( s ); + return 0; + } + + stbi__skip(s, 8); + + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return 0; + + packet = &packets[num_packets++]; + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + act_comp |= packet->channel; + + if (stbi__at_eof(s)) { + stbi__rewind( s ); + return 0; + } + if (packet->size != 8) { + stbi__rewind( s ); + return 0; + } + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); + + return 1; +} +#endif + +// ************************************************************************************************* +// Portable Gray Map and Portable Pixel Map loader +// by Ken Miller +// +// PGM: http://netpbm.sourceforge.net/doc/pgm.html +// PPM: http://netpbm.sourceforge.net/doc/ppm.html +// +// Known limitations: +// Does not support comments in the header section +// Does not support ASCII image data (formats P2 and P3) +// Does not support 16-bit-per-channel + +#ifndef STBI_NO_PNM + +static int stbi__pnm_test(stbi__context *s) +{ + char p, t; + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind( s ); + return 0; + } + return 1; +} + +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + STBI_NOTUSED(ri); + + if (!stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n)) + return 0; + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + + if (!stbi__mad3sizes_valid(s->img_n, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "PNM too large"); + + out = (stbi_uc *) stbi__malloc_mad3(s->img_n, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + stbi__getn(s, out, s->img_n * s->img_x * s->img_y); + + if (req_comp && req_comp != s->img_n) { + out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + return out; +} + +static int stbi__pnm_isspace(char c) +{ + return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; +} + +static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) +{ + for (;;) { + while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) + *c = (char) stbi__get8(s); + + if (stbi__at_eof(s) || *c != '#') + break; + + while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) + *c = (char) stbi__get8(s); + } +} + +static int stbi__pnm_isdigit(char c) +{ + return c >= '0' && c <= '9'; +} + +static int stbi__pnm_getinteger(stbi__context *s, char *c) +{ + int value = 0; + + while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { + value = value*10 + (*c - '0'); + *c = (char) stbi__get8(s); + } + + return value; +} + +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) +{ + int maxv, dummy; + char c, p, t; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + stbi__rewind(s); + + // Get identifier + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind(s); + return 0; + } + + *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm + + c = (char) stbi__get8(s); + stbi__pnm_skip_whitespace(s, &c); + + *x = stbi__pnm_getinteger(s, &c); // read width + stbi__pnm_skip_whitespace(s, &c); + + *y = stbi__pnm_getinteger(s, &c); // read height + stbi__pnm_skip_whitespace(s, &c); + + maxv = stbi__pnm_getinteger(s, &c); // read max value + + if (maxv > 255) + return stbi__err("max value > 255", "PPM image not 8-bit"); + else + return 1; +} +#endif + +static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) +{ + #ifndef STBI_NO_JPEG + if (stbi__jpeg_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNG + if (stbi__png_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_GIF + if (stbi__gif_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_BMP + if (stbi__bmp_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PIC + if (stbi__pic_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNM + if (stbi__pnm_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_info(s, x, y, comp)) return 1; + #endif + + // test tga last because it's a crappy test! + #ifndef STBI_NO_TGA + if (stbi__tga_info(s, x, y, comp)) + return 1; + #endif + return stbi__err("unknown image type", "Image not of any known type, or corrupt"); +} + +static int stbi__is_16_main(stbi__context *s) +{ + #ifndef STBI_NO_PNG + if (stbi__png_is16(s)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_is16(s)) return 1; + #endif + + return 0; +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_info_from_file(f, x, y, comp); + fclose(f); + return result; +} + +STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__info_main(&s,x,y,comp); + fseek(f,pos,SEEK_SET); + return r; +} + +STBIDEF int stbi_is_16_bit(char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_is_16_bit_from_file(f); + fclose(f); + return result; +} + +STBIDEF int stbi_is_16_bit_from_file(FILE *f) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__is_16_main(&s); + fseek(f,pos,SEEK_SET); + return r; +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__is_16_main(&s); +} + +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__is_16_main(&s); +} + +#endif // STB_IMAGE_IMPLEMENTATION + +/* + revision history: + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug + 1-bit BMP + *_is_16_bit api + avoid warnings + 2.16 (2017-07-23) all functions have 16-bit variants; + STBI_NO_STDIO works again; + compilation fixes; + fix rounding in unpremultiply; + optimize vertical flip; + disable raw_len validation; + documentation fixes + 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; + warning fixes; disable run-time SSE detection on gcc; + uniform handling of optional "return" values; + thread-safe initialization of zlib tables + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) allocate large structures on the stack + remove white matting for transparent PSD + fix reported channel count for PNG & BMP + re-enable SSE2 in non-gcc 64-bit + support RGB-formatted JPEG + read 16-bit PNGs (only as 8-bit) + 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED + 2.09 (2016-01-16) allow comments in PNM files + 16-bit-per-pixel TGA (not bit-per-component) + info() for TGA could break due to .hdr handling + info() for BMP to shares code instead of sloppy parse + can use STBI_REALLOC_SIZED if allocator doesn't support realloc + code cleanup + 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA + 2.07 (2015-09-13) fix compiler warnings + partial animated GIF support + limited 16-bpc PSD support + #ifdef unused functions + bug with < 92 byte PIC,PNM,HDR,TGA + 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value + 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning + 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit + 2.03 (2015-04-12) extra corruption checking (mmozeiko) + stbi_set_flip_vertically_on_load (nguillemot) + fix NEON support; fix mingw support + 2.02 (2015-01-19) fix incorrect assert, fix warning + 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 + 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG + 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) + progressive JPEG (stb) + PGM/PPM support (Ken Miller) + STBI_MALLOC,STBI_REALLOC,STBI_FREE + GIF bugfix -- seemingly never worked + STBI_NO_*, STBI_ONLY_* + 1.48 (2014-12-14) fix incorrectly-named assert() + 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) + optimize PNG (ryg) + fix bug in interlaced PNG with user-specified channel count (stb) + 1.46 (2014-08-26) + fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG + 1.45 (2014-08-16) + fix MSVC-ARM internal compiler error by wrapping malloc + 1.44 (2014-08-07) + various warning fixes from Ronny Chevalier + 1.43 (2014-07-15) + fix MSVC-only compiler problem in code changed in 1.42 + 1.42 (2014-07-09) + don't define _CRT_SECURE_NO_WARNINGS (affects user code) + fixes to stbi__cleanup_jpeg path + added STBI_ASSERT to avoid requiring assert.h + 1.41 (2014-06-25) + fix search&replace from 1.36 that messed up comments/error messages + 1.40 (2014-06-22) + fix gcc struct-initialization warning + 1.39 (2014-06-15) + fix to TGA optimization when req_comp != number of components in TGA; + fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) + add support for BMP version 5 (more ignored fields) + 1.38 (2014-06-06) + suppress MSVC warnings on integer casts truncating values + fix accidental rename of 'skip' field of I/O + 1.37 (2014-06-04) + remove duplicate typedef + 1.36 (2014-06-03) + convert to header file single-file library + if de-iphone isn't set, load iphone images color-swapped instead of returning NULL + 1.35 (2014-05-27) + various warnings + fix broken STBI_SIMD path + fix bug where stbi_load_from_file no longer left file pointer in correct place + fix broken non-easy path for 32-bit BMP (possibly never used) + TGA optimization by Arseny Kapoulkine + 1.34 (unknown) + use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case + 1.33 (2011-07-14) + make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements + 1.32 (2011-07-13) + support for "info" function for all supported filetypes (SpartanJ) + 1.31 (2011-06-20) + a few more leak fixes, bug in PNG handling (SpartanJ) + 1.30 (2011-06-11) + added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) + removed deprecated format-specific test/load functions + removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway + error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) + fix inefficiency in decoding 32-bit BMP (David Woo) + 1.29 (2010-08-16) + various warning fixes from Aurelien Pocheville + 1.28 (2010-08-01) + fix bug in GIF palette transparency (SpartanJ) + 1.27 (2010-08-01) + cast-to-stbi_uc to fix warnings + 1.26 (2010-07-24) + fix bug in file buffering for PNG reported by SpartanJ + 1.25 (2010-07-17) + refix trans_data warning (Won Chun) + 1.24 (2010-07-12) + perf improvements reading from files on platforms with lock-heavy fgetc() + minor perf improvements for jpeg + deprecated type-specific functions so we'll get feedback if they're needed + attempt to fix trans_data warning (Won Chun) + 1.23 fixed bug in iPhone support + 1.22 (2010-07-10) + removed image *writing* support + stbi_info support from Jetro Lauha + GIF support from Jean-Marc Lienher + iPhone PNG-extensions from James Brown + warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) + 1.21 fix use of 'stbi_uc' in header (reported by jon blow) + 1.20 added support for Softimage PIC, by Tom Seddon + 1.19 bug in interlaced PNG corruption check (found by ryg) + 1.18 (2008-08-02) + fix a threading bug (local mutable static) + 1.17 support interlaced PNG + 1.16 major bugfix - stbi__convert_format converted one too many pixels + 1.15 initialize some fields for thread safety + 1.14 fix threadsafe conversion bug + header-file-only version (#define STBI_HEADER_FILE_ONLY before including) + 1.13 threadsafe + 1.12 const qualifiers in the API + 1.11 Support installable IDCT, colorspace conversion routines + 1.10 Fixes for 64-bit (don't use "unsigned long") + optimized upsampling by Fabian "ryg" Giesen + 1.09 Fix format-conversion for PSD code (bad global variables!) + 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz + 1.07 attempt to fix C++ warning/errors again + 1.06 attempt to fix C++ warning/errors again + 1.05 fix TGA loading to return correct *comp and use good luminance calc + 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free + 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR + 1.02 support for (subset of) HDR files, float interface for preferred access to them + 1.01 fix bug: possible bug in handling right-side up bmps... not sure + fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all + 1.00 interface to zlib that skips zlib header + 0.99 correct handling of alpha in palette + 0.98 TGA loader by lonesock; dynamically add loaders (untested) + 0.97 jpeg errors on too large a file; also catch another malloc failure + 0.96 fix detection of invalid v value - particleman@mollyrocket forum + 0.95 during header scan, seek to markers in case of padding + 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same + 0.93 handle jpegtran output; verbose errors + 0.92 read 4,8,16,24,32-bit BMP files of several formats + 0.91 output 24-bit Windows 3.0 BMP files + 0.90 fix a few more warnings; bump version number to approach 1.0 + 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd + 0.60 fix compiling as c++ + 0.59 fix warnings: merge Dave Moore's -Wall fixes + 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian + 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available + 0.56 fix bug: zlib uncompressed mode len vs. nlen + 0.55 fix bug: restart_interval not initialized to 0 + 0.54 allow NULL for 'int *comp' + 0.53 fix bug in png 3->4; speedup png decoding + 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments + 0.51 obey req_comp requests, 1-component jpegs return as 1-component, + on 'test' only check type, not whether we support this variant + 0.50 (2006-11-19) + first released version +*/ + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/Build/source/texk/web2c/hitexdir/hintview/src/tables.c b/Build/source/texk/web2c/hitexdir/hintview/src/tables.c new file mode 100644 index 00000000000..e8d8c4cd3ca --- /dev/null +++ b/Build/source/texk/web2c/hitexdir/hintview/src/tables.c @@ -0,0 +1,78 @@ +#include "basetypes.h" +#include "format.h" + +const char *content_name[32]={"text", "list", "param", "xdimen", "adjust", "glyph", "kern", "glue", "ligature", "disc", "language", "rule", "image", "leaders", "baseline", "hbox", "vbox", "par", "math", "table", "item", "hset", "vset", "hpack", "vpack", "stream", "page", "range", "link", "undefined2", "undefined3", "penalty"}; + +const char *definition_name[32]={"text", "list", "param", "xdimen", "adjust", "font", "dimen", "glue", "ligature", "disc", "language", "rule", "image", "leaders", "baseline", "hbox", "vbox", "par", "math", "table", "item", "hset", "vset", "hpack", "vpack", "stream", "page", "range", "label", "undefined2", "undefined3", "int"}; + +int max_outline=-1; + +int32_t int_defaults[MAX_INT_DEFAULT+1]={0, 100, 200, 10, 50, 50, 150, 150, 50, 100, 10000, 0, 0, 10000, 5000, 10000, 0, 720, 4, 7, 1776, 1, 20000}; + +dimen_t dimen_defaults[MAX_DIMEN_DEFAULT+1]={0x0, 0x1d5c147, 0x28333f7, 0x0, 0x0, 0x38000, 0x0, 0x0, 0xa0000, 0xa0000}; + +glue_t glue_defaults[MAX_GLUE_DEFAULT+1]={ +{{0x0, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, +{{0x0, 0.000000, 0.000000},{1.000000, 1},{0.000000, 0}}, +{{0x0, 0.000000, 0.000000},{1.000000, 2},{0.000000, 0}}, +{{0x10000, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, +{{0xc0000, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, +{{0xc0000, 0.000000, 0.000000},{3.000000, 0},{9.000000, 0}}, +{{0xc0000, 0.000000, 0.000000},{3.000000, 0},{9.000000, 0}}, +{{0x0, 0.000000, 0.000000},{3.000000, 0},{0.000000, 0}}, +{{0x70000, 0.000000, 0.000000},{3.000000, 0},{4.000000, 0}}, +{{0x0, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, +{{0x0, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, +{{0xa0000, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, +{{0x80000, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, +{{0x0, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, +{{0x0, 0.000000, 0.000000},{1.000000, 1},{0.000000, 0}}, +}; + +xdimen_t xdimen_defaults[MAX_XDIMEN_DEFAULT+1]={{0x0, 0.0, 0.0}, {0x0, 1.0, 0.0}, {0x0, 0.0, 1.0}}; + +baseline_t baseline_defaults[MAX_BASELINE_DEFAULT+1]={{{{0x0, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, {{0x0, 0.000000, 0.000000},{0.000000, 0},{0.000000, 0}}, 0x0}}; + +label_t label_defaults[MAX_LABEL_DEFAULT+1]={{0,LABEL_TOP,true,0,0,0}}; + +int max_fixed[32]= {65536, 65536, -1, 2, 65536, -1, 0, 2, -1, -1, -1, -1, -1, -1, 0, 65536, 65536, 65536, 65536, 65536, 65536, 65536, 65536, 65536, 65536, 0, 0, 0, -1, 65536, 65536, 0}; + +int max_default[32]= {-1, -1, -1, 2, -1, -1, 9, 14, -1, -1, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, -1, -1, 22}; + +int max_ref[32]= {-1, -1, -1, 2, -1, -1, 9, 14, -1, -1, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, -1, -1, 22}; + +signed char hnode_size[0x100]= { +0,0,0,0,0,0,0,0, /* text */ +0,0,0,0,0,0,0,0, /* list */ +0,0,0,0,0,0,0,0, /* param */ +0,6,6,10,6,10,10,14, /* xdimen */ +0,-4*1+0,0,0,0,0,0,0, /* adjust */ +0,4,5,6,7,0,0,0, /* glyph */ +3,3,6,-4*1+0,3,3,6,-4*1+0, /* kern */ +3,6,6,10,6,10,10,-4*9+0, /* glue */ +3,4,5,6,7,8,9,-4*2+0, /* ligature */ +3,0,-4*1+0,-4*1+1,3,0,-4*2+0,-4*2+1, /* disc */ +3,2,2,2,2,2,2,2, /* language */ +3,6,6,10,6,10,10,14, /* rule */ +3,0,0,0,4,12,12,20, /* image */ +3,-4*1+0,-4*1+0,-4*1+0,0,-4*1+1,-4*1+1,-4*1+1, /* leaders */ +3,6,-4*1+0,-4*5+0,-4*1+0,-4*5+0,-4*1+1,-4*5+1, /* baseline */ +-4*9+0,-4*13+0,-4*13+0,-4*17+0,-4*14+0,-4*18+0,-4*18+0,-4*22+0, /* hbox */ +-4*9+0,-4*13+0,-4*13+0,-4*17+0,-4*14+0,-4*18+0,-4*18+0,-4*22+0, /* vbox */ +-4*3+0,0,-4*2+1,0,-4*2+1,0,-4*1+2,0, /* par */ +-4*2+0,-4*2+1,-4*2+1,2,-4*1+1,-4*1+2,-4*1+2,2, /* math */ +-4*2+1,-4*2+1,-4*2+1,-4*2+1,-4*1+2,-4*1+2,-4*1+2,-4*1+2, /* table */ +-4*1+0,-4*1+0,-4*1+0,-4*1+0,-4*1+0,-4*1+0,-4*2+0,0, /* item */ +-4*18+0,-4*22+0,-4*22+0,-4*26+0,-4*17+1,-4*21+1,-4*21+1,-4*25+1, /* hset */ +-4*18+0,-4*22+0,-4*22+0,-4*26+0,-4*17+1,-4*21+1,-4*21+1,-4*25+1, /* vset */ +-4*2+0,-4*2+0,-4*6+0,-4*6+0,-4*1+1,-4*1+1,-4*5+1,-4*5+1, /* hpack */ +-4*6+0,-4*6+0,-4*10+0,-4*10+0,-4*5+1,-4*5+1,-4*9+1,-4*9+1, /* vpack */ +-4*3+0,0,-4*2+1,0,0,0,0,0, /* stream */ +0,0,0,0,0,0,0,0, /* page */ +0,0,0,0,0,0,0,0, /* range */ +3,4,3,4,0,0,0,0, /* link */ +0,0,0,0,0,0,0,0, /* undefined2 */ +0,0,0,0,0,0,0,0, /* undefined3 */ +3,3,4,0,0,0,0,0}; /* penalty */ + + -- cgit v1.2.3