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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvipng/dvipng.h
Initial commit
Diffstat (limited to 'dviware/dvipng/dvipng.h')
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diff --git a/dviware/dvipng/dvipng.h b/dviware/dvipng/dvipng.h
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+/* dvipng.h */
+
+/************************************************************************
+
+ Part of the dvipng distribution
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+
+ Copyright (C) 2002-2015 Jan-Åke Larsson
+
+************************************************************************/
+
+#ifndef DVIPNG_H
+#define DVIPNG_H
+#include "config.h"
+
+#define STRSIZE 255 /* stringsize for file specifications */
+
+#define FIRSTFNTCHAR 0
+#define LASTFNTCHAR 255
+#define NFNTCHARS LASTFNTCHAR+1
+
+#define STACK_SIZE 100 /* DVI-stack size */
+
+#define DEFAULT_GAMMA 1.0
+
+/* Name of the program which is called to generate missing pk files */
+#define MAKETEXPK "mktexpk"
+
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#else /* HAVE_INTTYPES_H */
+# ifndef __sgi
+/* IRIX has the following types typedef'd in sys/types.h already,
+ * i.e., _old_ IRIX systems; newer ones have a working inttypes.h */
+typedef signed char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+#endif /* ! __sgi */
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+typedef long long int64_t;
+typedef unsigned long long uint64_t;
+#endif /* HAVE_INTTYPES_H */
+
+#ifndef INT32_MIN
+#define INT32_MIN (-2147483647-1)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX (2147483647)
+#endif
+
+#include <gd.h>
+
+#ifdef HAVE_KPATHSEA_KPATHSEA_H
+# include <kpathsea/kpathsea.h>
+#else
+# error: kpathsea/kpathsea.h is missing from your system
+#endif
+
+#ifdef HAVE_FT2
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#endif
+
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# ifdef HAVE_KPATHSEA_KPATHSEA_H
+/* boolean is an enum type from kpathsea/types.h loaded in
+ kpathsea/kpathsea.h, use it as fallback */
+# define bool boolean
+# else
+typedef int bool;
+# define true (bool) 1
+# define false (bool) 0
+# endif
+#endif
+
+#ifndef HAVE_VPRINTF
+# ifdef HAVE_DOPRNT
+# define vfprintf(stream, message, args) _doprnt(message, args, stream)
+# else
+# error: vfprintf AND _doprnt are missing!!!
+ /* If we have neither, should fall back to fprintf with fixed args. */
+# endif
+#endif
+
+/*************************************************************/
+/************************* protos.h ************************/
+/*************************************************************/
+
+typedef int pixels;
+typedef int32_t subpixels;
+typedef int32_t dviunits;
+
+#define MM_TO_PXL(x) (int)(((x)*resolution*10)/254)
+#define PT_TO_PXL(x) (int)((int32_t)((x)*resolution*100l)/7224)
+#define PT_TO_DVI(x) (int32_t)((x)*65536l)
+
+/*#define PIXROUND(x,c) ((((double)x+(double)(c>>1))/(double)c)+0.5)*/
+/*#define PIXROUND(x,c) (((x)+c)/(c))*/
+/*#define PIXROUND(x,c) ((x+c-1)/(c))*/
+/*#define PIXROUND(x,c) ((x)/(c))*/
+/* integer round to the nearest number, not towards zero */
+#define PIXROUND(num,den) ((num)>0 ? ((num)+(den)/2)/(den) : -(((den)/2-(num))/(den)))
+
+
+/********************************************************/
+/*********************** dvi.h ************************/
+/********************************************************/
+
+#define DVI_TYPE 0
+struct dvi_data { /* dvi entry */
+ int type; /* This is a DVI */
+ struct dvi_data *next;
+ uint32_t num, den, mag; /* PRE command parameters */
+ int32_t conv; /* computed from num and den */
+ /* divide dvi units (sp) with conv to get mf device resolution */
+ /* divide further with shrinkfactor to get true resolution */
+ char * name; /* full name of DVI file */
+ char * outname; /* output filename (basename) */
+ FILE * filep; /* file pointer */
+ time_t mtime; /* modification time */
+ struct font_num *fontnump; /* DVI font numbering */
+ struct page_list *pagelistp; /* DVI page list */
+#define DVI_PREVIEW_LATEX_TIGHTPAGE 1
+#define DVI_PREVIEW_BOP_HOOK (1<<1)
+ uint32_t flags; /* Preview-latex flags */
+};
+
+#define PAGE_POST INT32_MAX
+#define PAGE_LASTPAGE INT32_MAX-1
+#define PAGE_MAXPAGE INT32_MAX-2 /* assume no pages out of this range */
+#define PAGE_FIRSTPAGE INT32_MIN
+#define PAGE_MINPAGE INT32_MIN+1 /* assume no pages out of this range */
+
+struct dvi_color {
+ int red,green,blue;
+};
+
+struct page_list {
+ struct page_list* next;
+ int offset; /* file offset to BOP */
+ int32_t count[11]; /* 10 dvi counters + absolute pagenum in file */
+ int csp; /* color stack pointer at BOP */
+ struct dvi_color cstack[2]; /* color stack at BOP, may be longer */
+};
+
+
+
+
+struct dvi_data* DVIOpen(char*,char*);
+void DVIClose(struct dvi_data*);
+bool DVIReOpen(struct dvi_data*);
+struct page_list*FindPage(struct dvi_data*, int32_t, bool);
+struct page_list*NextPage(struct dvi_data*, struct page_list*);
+struct page_list*PrevPage(struct dvi_data*, struct page_list*);
+int SeekPage(struct dvi_data*, struct page_list*);
+bool DVIFollowToggle(void);
+unsigned char* DVIGetCommand(struct dvi_data*);
+bool DVIIsNextPSSpecial(struct dvi_data*);
+uint32_t CommandLength(unsigned char*);
+void ClearPSHeaders(void);
+
+/********************************************************/
+/********************** misc.h ************************/
+/********************************************************/
+
+struct filemmap {
+#ifdef WIN32
+ HANDLE hFile;
+ HANDLE hMap;
+#else /* WIN32 */
+ int fd;
+#endif /* WIN32 */
+ char* data;
+ size_t size;
+};
+
+bool DecodeArgs(int, char *[]);
+void DecodeString(char *);
+bool MmapFile (char *filename,struct filemmap *fmmap);
+void UnMmapFile(struct filemmap* fmmap);
+
+void Message(int, const char *fmt, ...);
+void Warning(const char *fmt, ...);
+void Fatal(const char *fmt, ...);
+
+int32_t SNumRead(unsigned char*, register int);
+uint32_t UNumRead(unsigned char*, register int);
+
+bool MmapFile (char *filename,struct filemmap *fmmap);
+void UnMmapFile(struct filemmap* fmmap);
+
+
+/********************************************************/
+/*********************** font.h ***********************/
+/********************************************************/
+struct encoding {
+ struct encoding* next;
+ char* name;
+ char* charname[257];
+};
+
+struct subfont {
+ struct subfont* next;
+ char* name;
+ char* infix;
+ int encoding;
+ int32_t charindex[256];
+};
+
+#ifdef HAVE_FT2
+struct psfontmap {
+ struct psfontmap *next;
+ char *line,*psfile,*tfmname,*encname,*end;
+ struct encoding* encoding;
+ FT_Matrix* ft_transformp;
+ FT_Matrix ft_transform;
+ struct subfont* subfont;
+};
+#endif
+
+#define FONT_TYPE_PK 1
+#define FONT_TYPE_VF 2
+#define FONT_TYPE_FT 3
+struct char_entry { /* PK/FT Glyph/VF Macro */
+ dviunits tfmw; /* TFM width */
+ unsigned char *data; /* glyph data, either pixel data
+ * (0=transp, 255=max ink) or VF macro */
+ uint32_t length; /* Length of PK data or VF macro */
+ /* Only used in pixel fonts */
+ pixels w,h; /* width and height in pixels */
+ subpixels xOffset, yOffset; /* x offset and y offset in subpixels */
+ /* Only used in PK fonts */
+ unsigned char *pkdata; /* Points to beginning of PK data */
+ unsigned char flag_byte; /* PK flagbyte */
+};
+
+struct font_entry { /* font entry */
+ int type; /* PK/VF/Type1 ... */
+ struct font_entry *next;
+ uint32_t c, s, d;
+ uint8_t a, l;
+ char n[STRSIZE]; /* FNT_DEF command parameters */
+ int dpi; /* computed from s and d */
+ char * name; /* full name of PK/VF file */
+ struct filemmap fmmap; /* file memory map */
+ uint32_t magnification; /* magnification read from font file */
+ uint32_t designsize; /* design size read from font file */
+ void * chr[NFNTCHARS]; /* character information */
+#ifdef HAVE_FT2
+ FT_Face face; /* Freetype2 face */
+ struct psfontmap* psfontmap; /* Font transformation */
+#endif
+ struct font_num *vffontnump; /* VF local font numbering */
+ int32_t defaultfont; /* VF default font number */
+};
+
+struct font_num { /* Font number. Different for VF/DVI, and several
+ font_num can point to one font_entry */
+ struct font_num *next;
+ int32_t k;
+ struct font_entry *fontp;
+};
+
+void CheckChecksum(uint32_t, uint32_t, const char*);
+void InitPK (struct font_entry *newfontp);
+void DonePK(struct font_entry *oldfontp);
+void InitVF (struct font_entry *newfontp);
+void DoneVF(struct font_entry *oldfontp);
+
+void FontDef(unsigned char*, void* /* dvi/vf */);
+void ClearFonts(void);
+void SetFntNum(int32_t, void* /* dvi/vf */);
+void FreeFontNumP(struct font_num *hfontnump);
+
+#ifdef HAVE_FT2
+char* copyword(char* orig);
+struct psfontmap *NewPSFont(struct psfontmap* copyfrom);
+void InitPSFontMap(void);
+void ClearPSFontMap(void);
+struct psfontmap* FindPSFontMap(char*);
+struct encoding* FindEncoding(char*);
+void ClearEncoding(void);
+bool ReadTFM(struct font_entry *, char*);
+bool InitFT(struct font_entry *);
+void DoneFT(struct font_entry *tfontp);
+void LoadFT(int32_t, struct char_entry *);
+struct psfontmap* FindSubFont(struct psfontmap* entry, char* fontname);
+void ClearSubfont(void);
+#endif
+
+/********************************************************/
+/********************* ppagelist.h ********************/
+/********************************************************/
+
+bool ParsePages(const char*);
+void FirstPage(int32_t,bool);
+void LastPage(int32_t,bool);
+void ClearPpList(void);
+void Reverse(bool);
+struct page_list* NextPPage(void* /* dvi */, struct page_list*);
+
+
+
+
+#ifdef MAIN
+#define EXTERN
+#define INIT(x) =x
+#else
+#define EXTERN extern
+#define INIT(x)
+#endif
+
+/********************************************************/
+/********************** draw.h ************************/
+/********************************************************/
+#include "commands.h"
+
+void CreateImage(pixels width, pixels height);
+void DestroyImage(void);
+void DrawCommand(unsigned char*, void* /* dvi/vf */);
+void DrawPages(void);
+void WriteImage(char*, int);
+void LoadPK(int32_t, register struct char_entry *);
+int32_t SetChar(int32_t);
+dviunits SetGlyph(struct char_entry *ptr, int32_t hh,int32_t vv);
+void Gamma(double gamma);
+int32_t SetVF(struct char_entry *ptr);
+int32_t SetRule(int32_t, int32_t, int32_t, int32_t);
+void SetSpecial(char *, char *, int32_t, int32_t);
+void BeginVFMacro(struct font_entry*);
+void EndVFMacro(void);
+
+/**************************************************/
+void handlepapersize(const char*,int32_t*,int32_t*);
+
+void stringrgb(const char* colorstring,int *r,int *g,int *b);
+void background(const char *);
+void initcolor(void);
+void popcolor(void);
+void pushcolor(const char *);
+void resetcolorstack(const char *);
+void StoreColorStack(struct page_list *tpagep);
+void ReadColorStack(struct page_list *tpagep);
+void StoreBackgroundColor(struct page_list *tpagep);
+void ClearColorNames(void);
+void InitXColorPrologue(const char* prologuename);
+
+/**********************************************************************/
+/************************* Global Variables *************************/
+/**********************************************************************/
+
+#ifdef MAKETEXPK
+#ifdef HAVE_LIBKPATHSEA
+EXTERN bool makeTexPK INIT(MAKE_TEX_PK_BY_DEFAULT);
+#else
+EXTERN bool makeTexPK INIT(_TRUE);
+#endif
+#endif
+
+EXTERN uint32_t usermag INIT(0); /* user specified magstep */
+EXTERN struct font_entry *hfontptr INIT(NULL); /* font list pointer */
+
+EXTERN struct internal_state {
+ struct font_entry* currentfont;
+} current_state;
+
+#define BE_NONQUIET 1
+#define BE_VERBOSE (1<<1)
+#define PARSE_STDIN (1<<2)
+#define EXPAND_BBOX (1<<3)
+#define TIGHT_BBOX (1<<4)
+#define FORCE_TRUECOLOR (1<<5)
+#define USE_FREETYPE (1<<6)
+#define REPORT_HEIGHT (1<<7)
+#define REPORT_DEPTH (1<<8)
+#define REPORT_WIDTH (1<<9)
+#define DVI_PAGENUM (1<<10)
+#define MODE_PICKY (1<<11)
+#define GIF_OUTPUT (1<<12)
+#define MODE_STRICT (1<<13)
+#define NO_GHOSTSCRIPT (1<<14)
+#define NO_GSSAFER (1<<15)
+#define BG_TRANSPARENT (1<<16)
+#define BG_TRANSPARENT_ALPHA (1<<17)
+#define FORCE_PALETTE (1<<18)
+#define NO_RAW_PS (1<<19)
+EXTERN uint32_t option_flags INIT(BE_NONQUIET | USE_FREETYPE);
+
+#define PAGE_GAVE_WARN 1
+#define PAGE_PREVIEW_BOP (1<<1)
+#define PAGE_TRUECOLOR (1<<2)
+EXTERN uint32_t page_flags INIT(0);
+
+
+#ifdef DEBUG
+EXTERN unsigned int debug INIT(0);
+#define DEBUG_PRINT(a,b) if (debug & a) { printf b; fflush(stdout); }
+#define DEBUG_DVI 1
+#define DEBUG_VF (1<<1)
+#define DEBUG_PK (1<<2)
+#define DEBUG_TFM (1<<3)
+#define DEBUG_GLYPH (1<<4)
+#define DEBUG_FT (1<<5)
+#define DEBUG_ENC (1<<6)
+#define DEBUG_COLOR (1<<7)
+#define DEBUG_GS (1<<8)
+#define LASTDEBUG DEBUG_GS
+#define DEBUG_DEFAULT DEBUG_DVI
+#else
+#define DEBUG_PRINT(a,b)
+#endif
+
+/************************timing stuff*********************/
+#ifdef TIMING
+# ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+# else
+# ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+# endif
+EXTERN double timer INIT(0);
+EXTERN double my_tic,my_toc INIT(0);
+EXTERN int ndone INIT(0); /* number of pages converted */
+# ifdef HAVE_GETTIMEOFDAY
+EXTERN struct timeval Tp;
+# define TIC { gettimeofday(&Tp, NULL); \
+ my_tic= Tp.tv_sec + Tp.tv_usec/1000000.0;}
+# define TOC { gettimeofday(&Tp, NULL); \
+ my_toc += Tp.tv_sec + Tp.tv_usec/1000000.0 - my_tic;}
+# else
+# ifdef HAVE_FTIME
+EXTERN struct timeb timebuffer;
+# define TIC() { ftime(&timebuffer); \
+ my_tic= timebuffer.time + timebuffer.millitm/1000.0;
+# define TOC() { ftime(&timebuffer); \
+ my_toc += timebuffer.time + timebuffer.millitm/1000.0 - my_tic;}
+# else
+# define TIC()
+# define TOC()
+# endif
+# endif
+#endif /* TIMING */
+
+EXTERN char* user_mfmode INIT(NULL);
+EXTERN int user_bdpi INIT(0);
+EXTERN int dpi INIT(100);
+
+#ifdef HAVE_GDIMAGEPNGEX
+EXTERN int compression INIT(1);
+#endif
+#undef min
+#undef max
+# define max(x,y) if ((y)>(x)) x = y
+# define min(x,y) if ((y)<(x)) x = y
+
+/* These are in pixels*/
+EXTERN int x_min INIT(0);
+EXTERN int y_min INIT(0);
+EXTERN int x_max INIT(0);
+EXTERN int y_max INIT(0);
+
+/* Page size: default set by -T */
+EXTERN int x_width_def INIT(0);
+EXTERN int y_width_def INIT(0);
+
+/* Offset: default set by -O and -T bbox */
+EXTERN int x_offset_def INIT(0);
+EXTERN int y_offset_def INIT(0);
+
+/* Preview-latex's tightpage */
+EXTERN int x_width_tightpage INIT(0);
+EXTERN int y_width_tightpage INIT(0);
+EXTERN int x_offset_tightpage INIT(0);
+EXTERN int y_offset_tightpage INIT(0);
+
+/* Paper size: set by -t, for cropmark purposes only */
+/* This has yet to be written */
+EXTERN int x_pwidth INIT(0);
+EXTERN int y_pwidth INIT(0);
+
+/* The transparent border preview-latex desires */
+EXTERN int borderwidth INIT(0);
+
+/* fallback color for transparent background */
+EXTERN bool userbordercolor INIT(FALSE); /* if true, use user-supplied color */
+EXTERN struct dvi_color bordercolor;
+
+
+EXTERN gdImagePtr page_imagep INIT(NULL);
+EXTERN int32_t shrinkfactor INIT(4);
+
+EXTERN struct dvi_color cstack[STACK_SIZE];
+EXTERN int csp INIT(1);
+
+EXTERN struct font_entry* currentfont;
+EXTERN struct dvi_data* dvi INIT(NULL);
+
+#ifdef HAVE_FT2
+EXTERN FT_Library libfreetype INIT(NULL);
+#endif
+
+#define EXIT_FATAL EXIT_FAILURE+1
+EXTERN int exitcode INIT(EXIT_SUCCESS);
+
+#endif /* DVIPNG_H */