diff options
author | Martin Schröder <martin@oneiros.de> | 2006-12-25 23:53:09 +0000 |
---|---|---|
committer | Martin Schröder <martin@oneiros.de> | 2006-12-25 23:53:09 +0000 |
commit | 6f0e5de91f7cb5ea0951bc92a74a4c22722a54aa (patch) | |
tree | 89d1429133d4d58410a18e06fb544f35ad79a8f2 /Build/source/libs | |
parent | 57379ff68397e601ba3be4ef7f81f30629a43de9 (diff) |
Changes to xpdf for pdftex 1.40 (official und unofficial patches)
git-svn-id: svn://tug.org/texlive/trunk@2921 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs')
-rw-r--r-- | Build/source/libs/xpdf/goo/Makefile.in | 6 | ||||
-rw-r--r-- | Build/source/libs/xpdf/goo/gfile.cc | 2 | ||||
-rw-r--r-- | Build/source/libs/xpdf/goo/gfile.h | 5 | ||||
-rw-r--r-- | Build/source/libs/xpdf/goo/gmem.c | 22 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/Gfx.cc | 3079 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/Gfx.h | 280 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/JBIG2Stream.cc | 19 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/JPXStream.cc | 21 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/SecurityHandler.cc | 2 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/Stream.cc | 54 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/Stream.h | 3 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/XRef.cc | 34 | ||||
-rw-r--r-- | Build/source/libs/xpdf/xpdf/XRef.h | 32 |
13 files changed, 155 insertions, 3404 deletions
diff --git a/Build/source/libs/xpdf/goo/Makefile.in b/Build/source/libs/xpdf/goo/Makefile.in index 3770857d2b8..fe992f46ac5 100644 --- a/Build/source/libs/xpdf/goo/Makefile.in +++ b/Build/source/libs/xpdf/goo/Makefile.in @@ -4,6 +4,8 @@ # # Copyright 1996 Derek B. Noonburg # +# Modified for pdftex by Martin Schröder 2005 +# #======================================================================== srcdir = @srcdir@ @@ -13,7 +15,9 @@ srcdirparent = $(srcdir)/.. kpathsea_include_dir = -I../../../texk -I$(srcdir)/../../../texk ALLCFLAGS = $(CFLAGS) @DEFS@ -I.. -I$(srcdir)/.. -I. -I$(srcdir) $(kpathsea_include_dir) -ALLCXXFLAGS = $(CXXFLAGS) @DEFS@ -I.. -I$(srcdir)/.. -I. -I$(srcdir) $(kpathsea_include_dir) +ALLCXXFLAGS = $(CXXFLAGS) @DEFS@ \ + -I.. -I$(srcdir)/.. -I. -I$(srcdir) $(kpathsea_include_dir) \ + -DPDF_PARSER_ONLY CXXFLAGS = @CXXFLAGS@ CC = @CC@ CXX = @CXX@ diff --git a/Build/source/libs/xpdf/goo/gfile.cc b/Build/source/libs/xpdf/goo/gfile.cc index 11f5cf69e20..caa96e7459b 100644 --- a/Build/source/libs/xpdf/goo/gfile.cc +++ b/Build/source/libs/xpdf/goo/gfile.cc @@ -437,6 +437,7 @@ time_t getModTime(char *fileName) { #endif } +#ifndef PDF_PARSER_ONLY GBool openTempFile(GString **name, FILE **f, char *mode, char *ext) { #if defined(WIN32) //---------- Win32 ---------- @@ -521,6 +522,7 @@ GBool openTempFile(GString **name, FILE **f, char *mode, char *ext) { return gTrue; #endif } +#endif GBool executeCommand(char *cmd) { #ifdef VMS diff --git a/Build/source/libs/xpdf/goo/gfile.h b/Build/source/libs/xpdf/goo/gfile.h index 82f1d7a98e3..8817e8b2381 100644 --- a/Build/source/libs/xpdf/goo/gfile.h +++ b/Build/source/libs/xpdf/goo/gfile.h @@ -46,6 +46,9 @@ # endif # endif #endif +#if defined(__DJGPP__) +typedef unsigned int time_t; +#endif #include "gtypes.h" class GString; @@ -83,7 +86,9 @@ extern time_t getModTime(char *fileName); // should be done to the returned file pointer; the file may be // reopened later for reading, but not for writing. The <mode> string // should be "w" or "wb". Returns true on success. +#ifndef PDF_PARSER_ONLY extern GBool openTempFile(GString **name, FILE **f, char *mode, char *ext); +#endif // Execute <command>. Returns true on success. extern GBool executeCommand(char *cmd); diff --git a/Build/source/libs/xpdf/goo/gmem.c b/Build/source/libs/xpdf/goo/gmem.c index a0f2cf540e0..b97535adf04 100644 --- a/Build/source/libs/xpdf/goo/gmem.c +++ b/Build/source/libs/xpdf/goo/gmem.c @@ -11,6 +11,7 @@ #include <stdlib.h> #include <stddef.h> #include <string.h> +#include <limits.h> #include "gmem.h" #ifdef DEBUG_MEM @@ -63,7 +64,7 @@ void *gmalloc(int size) { int lst; unsigned long *trl, *p; - if (size == 0) + if (size <= 0) return NULL; size1 = gMemDataSize(size); if (!(mem = (char *)malloc(size1 + gMemHdrSize + gMemTrlSize))) { @@ -86,7 +87,7 @@ void *gmalloc(int size) { #else void *p; - if (size == 0) + if (size <= 0) return NULL; if (!(p = malloc(size))) { fprintf(stderr, "Out of memory\n"); @@ -102,7 +103,7 @@ void *grealloc(void *p, int size) { void *q; int oldSize; - if (size == 0) { + if (size <= 0) { if (p) gfree(p); return NULL; @@ -120,7 +121,7 @@ void *grealloc(void *p, int size) { #else void *q; - if (size == 0) { + if (size <= 0) { if (p) free(p); return NULL; @@ -140,8 +141,11 @@ void *grealloc(void *p, int size) { void *gmallocn(int nObjs, int objSize) { int n; + if (nObjs == 0) { + return NULL; + } n = nObjs * objSize; - if (objSize == 0 || n / objSize != nObjs) { + if (objSize <= 0 || nObjs < 0 || nObjs >= INT_MAX / objSize) { fprintf(stderr, "Bogus memory allocation size\n"); exit(1); } @@ -151,8 +155,14 @@ void *gmallocn(int nObjs, int objSize) { void *greallocn(void *p, int nObjs, int objSize) { int n; + if (nObjs == 0) { + if (p) { + gfree(p); + } + return NULL; + } n = nObjs * objSize; - if (objSize == 0 || n / objSize != nObjs) { + if (objSize <= 0 || nObjs < 0 || nObjs >= INT_MAX / objSize) { fprintf(stderr, "Bogus memory allocation size\n"); exit(1); } diff --git a/Build/source/libs/xpdf/xpdf/Gfx.cc b/Build/source/libs/xpdf/xpdf/Gfx.cc deleted file mode 100644 index e530213b660..00000000000 --- a/Build/source/libs/xpdf/xpdf/Gfx.cc +++ /dev/null @@ -1,3079 +0,0 @@ -//======================================================================== -// -// Gfx.cc -// -// Copyright 1996-2003 Glyph & Cog, LLC -// -//======================================================================== - -#include <aconf.h> - -#ifdef USE_GCC_PRAGMAS -#pragma implementation -#endif - -#include <stdio.h> -#include <stddef.h> -#include <string.h> -#include <math.h> -#include "gmem.h" -#include "GlobalParams.h" -#include "CharTypes.h" -#include "Object.h" -#include "Array.h" -#include "Dict.h" -#include "Stream.h" -#include "Lexer.h" -#include "Parser.h" -#include "GfxFont.h" -#include "GfxState.h" -#include "OutputDev.h" -#include "Page.h" -#include "Error.h" -#include "Gfx.h" - -// the MSVC math.h doesn't define this -#ifndef M_PI -#define M_PI 3.14159265358979323846 -#endif - -//------------------------------------------------------------------------ -// constants -//------------------------------------------------------------------------ - -// Max recursive depth for a function shading fill. -#define functionMaxDepth 6 - -// Max delta allowed in any color component for a function shading fill. -#define functionColorDelta (1 / 256.0) - -// Max number of splits along the t axis for an axial shading fill. -#define axialMaxSplits 256 - -// Max delta allowed in any color component for an axial shading fill. -#define axialColorDelta (1 / 256.0) - -// Max number of splits along the t axis for a radial shading fill. -#define radialMaxSplits 256 - -// Max delta allowed in any color component for a radial shading fill. -#define radialColorDelta (1 / 256.0) - -//------------------------------------------------------------------------ -// Operator table -//------------------------------------------------------------------------ - -#ifdef WIN32 // this works around a bug in the VC7 compiler -# pragma optimize("",off) -#endif - -Operator Gfx::opTab[] = { - {"\"", 3, {tchkNum, tchkNum, tchkString}, - &Gfx::opMoveSetShowText}, - {"'", 1, {tchkString}, - &Gfx::opMoveShowText}, - {"B", 0, {tchkNone}, - &Gfx::opFillStroke}, - {"B*", 0, {tchkNone}, - &Gfx::opEOFillStroke}, - {"BDC", 2, {tchkName, tchkProps}, - &Gfx::opBeginMarkedContent}, - {"BI", 0, {tchkNone}, - &Gfx::opBeginImage}, - {"BMC", 1, {tchkName}, - &Gfx::opBeginMarkedContent}, - {"BT", 0, {tchkNone}, - &Gfx::opBeginText}, - {"BX", 0, {tchkNone}, - &Gfx::opBeginIgnoreUndef}, - {"CS", 1, {tchkName}, - &Gfx::opSetStrokeColorSpace}, - {"DP", 2, {tchkName, tchkProps}, - &Gfx::opMarkPoint}, - {"Do", 1, {tchkName}, - &Gfx::opXObject}, - {"EI", 0, {tchkNone}, - &Gfx::opEndImage}, - {"EMC", 0, {tchkNone}, - &Gfx::opEndMarkedContent}, - {"ET", 0, {tchkNone}, - &Gfx::opEndText}, - {"EX", 0, {tchkNone}, - &Gfx::opEndIgnoreUndef}, - {"F", 0, {tchkNone}, - &Gfx::opFill}, - {"G", 1, {tchkNum}, - &Gfx::opSetStrokeGray}, - {"ID", 0, {tchkNone}, - &Gfx::opImageData}, - {"J", 1, {tchkInt}, - &Gfx::opSetLineCap}, - {"K", 4, {tchkNum, tchkNum, tchkNum, tchkNum}, - &Gfx::opSetStrokeCMYKColor}, - {"M", 1, {tchkNum}, - &Gfx::opSetMiterLimit}, - {"MP", 1, {tchkName}, - &Gfx::opMarkPoint}, - {"Q", 0, {tchkNone}, - &Gfx::opRestore}, - {"RG", 3, {tchkNum, tchkNum, tchkNum}, - &Gfx::opSetStrokeRGBColor}, - {"S", 0, {tchkNone}, - &Gfx::opStroke}, - {"SC", -4, {tchkNum, tchkNum, tchkNum, tchkNum}, - &Gfx::opSetStrokeColor}, - {"SCN", -5, {tchkSCN, tchkSCN, tchkSCN, tchkSCN, - tchkSCN}, - &Gfx::opSetStrokeColorN}, - {"T*", 0, {tchkNone}, - &Gfx::opTextNextLine}, - {"TD", 2, {tchkNum, tchkNum}, - &Gfx::opTextMoveSet}, - {"TJ", 1, {tchkArray}, - &Gfx::opShowSpaceText}, - {"TL", 1, {tchkNum}, - &Gfx::opSetTextLeading}, - {"Tc", 1, {tchkNum}, - &Gfx::opSetCharSpacing}, - {"Td", 2, {tchkNum, tchkNum}, - &Gfx::opTextMove}, - {"Tf", 2, {tchkName, tchkNum}, - &Gfx::opSetFont}, - {"Tj", 1, {tchkString}, - &Gfx::opShowText}, - {"Tm", 6, {tchkNum, tchkNum, tchkNum, tchkNum, - tchkNum, tchkNum}, - &Gfx::opSetTextMatrix}, - {"Tr", 1, {tchkInt}, - &Gfx::opSetTextRender}, - {"Ts", 1, {tchkNum}, - &Gfx::opSetTextRise}, - {"Tw", 1, {tchkNum}, - &Gfx::opSetWordSpacing}, - {"Tz", 1, {tchkNum}, - &Gfx::opSetHorizScaling}, - {"W", 0, {tchkNone}, - &Gfx::opClip}, - {"W*", 0, {tchkNone}, - &Gfx::opEOClip}, - {"b", 0, {tchkNone}, - &Gfx::opCloseFillStroke}, - {"b*", 0, {tchkNone}, - &Gfx::opCloseEOFillStroke}, - {"c", 6, {tchkNum, tchkNum, tchkNum, tchkNum, - tchkNum, tchkNum}, - &Gfx::opCurveTo}, - {"cm", 6, {tchkNum, tchkNum, tchkNum, tchkNum, - tchkNum, tchkNum}, - &Gfx::opConcat}, - {"cs", 1, {tchkName}, - &Gfx::opSetFillColorSpace}, - {"d", 2, {tchkArray, tchkNum}, - &Gfx::opSetDash}, - {"d0", 2, {tchkNum, tchkNum}, - &Gfx::opSetCharWidth}, - {"d1", 6, {tchkNum, tchkNum, tchkNum, tchkNum, - tchkNum, tchkNum}, - &Gfx::opSetCacheDevice}, - {"f", 0, {tchkNone}, - &Gfx::opFill}, - {"f*", 0, {tchkNone}, - &Gfx::opEOFill}, - {"g", 1, {tchkNum}, - &Gfx::opSetFillGray}, - {"gs", 1, {tchkName}, - &Gfx::opSetExtGState}, - {"h", 0, {tchkNone}, - &Gfx::opClosePath}, - {"i", 1, {tchkNum}, - &Gfx::opSetFlat}, - {"j", 1, {tchkInt}, - &Gfx::opSetLineJoin}, - {"k", 4, {tchkNum, tchkNum, tchkNum, tchkNum}, - &Gfx::opSetFillCMYKColor}, - {"l", 2, {tchkNum, tchkNum}, - &Gfx::opLineTo}, - {"m", 2, {tchkNum, tchkNum}, - &Gfx::opMoveTo}, - {"n", 0, {tchkNone}, - &Gfx::opEndPath}, - {"q", 0, {tchkNone}, - &Gfx::opSave}, - {"re", 4, {tchkNum, tchkNum, tchkNum, tchkNum}, - &Gfx::opRectangle}, - {"rg", 3, {tchkNum, tchkNum, tchkNum}, - &Gfx::opSetFillRGBColor}, - {"ri", 1, {tchkName}, - &Gfx::opSetRenderingIntent}, - {"s", 0, {tchkNone}, - &Gfx::opCloseStroke}, - {"sc", -4, {tchkNum, tchkNum, tchkNum, tchkNum}, - &Gfx::opSetFillColor}, - {"scn", -5, {tchkSCN, tchkSCN, tchkSCN, tchkSCN, - tchkSCN}, - &Gfx::opSetFillColorN}, - {"sh", 1, {tchkName}, - &Gfx::opShFill}, - {"v", 4, {tchkNum, tchkNum, tchkNum, tchkNum}, - &Gfx::opCurveTo1}, - {"w", 1, {tchkNum}, - &Gfx::opSetLineWidth}, - {"y", 4, {tchkNum, tchkNum, tchkNum, tchkNum}, - &Gfx::opCurveTo2}, -}; - -#ifdef WIN32 // this works around a bug in the VC7 compiler -# pragma optimize("",on) -#endif - -#define numOps (sizeof(opTab) / sizeof(Operator)) - -//------------------------------------------------------------------------ -// GfxResources -//------------------------------------------------------------------------ - -GfxResources::GfxResources(XRef *xref, Dict *resDict, GfxResources *nextA) { - Object obj1, obj2; - Ref r; - - if (resDict) { - - // build font dictionary - fonts = NULL; - resDict->lookupNF("Font", &obj1); - if (obj1.isRef()) { - obj1.fetch(xref, &obj2); - if (obj2.isDict()) { - r = obj1.getRef(); - fonts = new GfxFontDict(xref, &r, obj2.getDict()); - } - obj2.free(); - } else if (obj1.isDict()) { - fonts = new GfxFontDict(xref, NULL, obj1.getDict()); - } - obj1.free(); - - // get XObject dictionary - resDict->lookup("XObject", &xObjDict); - - // get color space dictionary - resDict->lookup("ColorSpace", &colorSpaceDict); - - // get pattern dictionary - resDict->lookup("Pattern", &patternDict); - - // get shading dictionary - resDict->lookup("Shading", &shadingDict); - - // get graphics state parameter dictionary - resDict->lookup("ExtGState", &gStateDict); - - } else { - fonts = NULL; - xObjDict.initNull(); - colorSpaceDict.initNull(); - patternDict.initNull(); - shadingDict.initNull(); - gStateDict.initNull(); - } - - next = nextA; -} - -GfxResources::~GfxResources() { - if (fonts) { - delete fonts; - } - xObjDict.free(); - colorSpaceDict.free(); - patternDict.free(); - shadingDict.free(); - gStateDict.free(); -} - -GfxFont *GfxResources::lookupFont(char *name) { - GfxFont *font; - GfxResources *resPtr; - - for (resPtr = this; resPtr; resPtr = resPtr->next) { - if (resPtr->fonts) { - if ((font = resPtr->fonts->lookup(name))) - return font; - } - } - error(-1, "Unknown font tag '%s'", name); - return NULL; -} - -GBool GfxResources::lookupXObject(char *name, Object *obj) { - GfxResources *resPtr; - - for (resPtr = this; resPtr; resPtr = resPtr->next) { - if (resPtr->xObjDict.isDict()) { - if (!resPtr->xObjDict.dictLookup(name, obj)->isNull()) - return gTrue; - obj->free(); - } - } - error(-1, "XObject '%s' is unknown", name); - return gFalse; -} - -GBool GfxResources::lookupXObjectNF(char *name, Object *obj) { - GfxResources *resPtr; - - for (resPtr = this; resPtr; resPtr = resPtr->next) { - if (resPtr->xObjDict.isDict()) { - if (!resPtr->xObjDict.dictLookupNF(name, obj)->isNull()) - return gTrue; - obj->free(); - } - } - error(-1, "XObject '%s' is unknown", name); - return gFalse; -} - -void GfxResources::lookupColorSpace(char *name, Object *obj) { - GfxResources *resPtr; - - for (resPtr = this; resPtr; resPtr = resPtr->next) { - if (resPtr->colorSpaceDict.isDict()) { - if (!resPtr->colorSpaceDict.dictLookup(name, obj)->isNull()) { - return; - } - obj->free(); - } - } - obj->initNull(); -} - -GfxPattern *GfxResources::lookupPattern(char *name) { - GfxResources *resPtr; - GfxPattern *pattern; - Object obj; - - for (resPtr = this; resPtr; resPtr = resPtr->next) { - if (resPtr->patternDict.isDict()) { - if (!resPtr->patternDict.dictLookup(name, &obj)->isNull()) { - pattern = GfxPattern::parse(&obj); - obj.free(); - return pattern; - } - obj.free(); - } - } - error(-1, "Unknown pattern '%s'", name); - return NULL; -} - -GfxShading *GfxResources::lookupShading(char *name) { - GfxResources *resPtr; - GfxShading *shading; - Object obj; - - for (resPtr = this; resPtr; resPtr = resPtr->next) { - if (resPtr->shadingDict.isDict()) { - if (!resPtr->shadingDict.dictLookup(name, &obj)->isNull()) { - shading = GfxShading::parse(&obj); - obj.free(); - return shading; - } - obj.free(); - } - } - error(-1, "Unknown shading '%s'", name); - return NULL; -} - -GBool GfxResources::lookupGState(char *name, Object *obj) { - GfxResources *resPtr; - - for (resPtr = this; resPtr; resPtr = resPtr->next) { - if (resPtr->gStateDict.isDict()) { - if (!resPtr->gStateDict.dictLookup(name, obj)->isNull()) { - return gTrue; - } - obj->free(); - } - } - error(-1, "ExtGState '%s' is unknown", name); - return gFalse; -} - -//------------------------------------------------------------------------ -// Gfx -//------------------------------------------------------------------------ - -Gfx::Gfx(XRef *xrefA, OutputDev *outA, int pageNum, Dict *resDict, - double hDPI, double vDPI, PDFRectangle *box, GBool crop, - PDFRectangle *cropBox, int rotate, - GBool (*abortCheckCbkA)(void *data), - void *abortCheckCbkDataA) { - int i; - - xref = xrefA; - subPage = gFalse; - printCommands = globalParams->getPrintCommands(); - - // start the resource stack - res = new GfxResources(xref, resDict, NULL); - - // initialize - out = outA; - state = new GfxState(hDPI, vDPI, box, rotate, out->upsideDown()); - fontChanged = gFalse; - clip = clipNone; - ignoreUndef = 0; - out->startPage(pageNum, state); - out->setDefaultCTM(state->getCTM()); - out->updateAll(state); - for (i = 0; i < 6; ++i) { - baseMatrix[i] = state->getCTM()[i]; - } - formDepth = 0; - abortCheckCbk = abortCheckCbkA; - abortCheckCbkData = abortCheckCbkDataA; - - // set crop box - if (crop) { - state->moveTo(cropBox->x1, cropBox->y1); - state->lineTo(cropBox->x2, cropBox->y1); - state->lineTo(cropBox->x2, cropBox->y2); - state->lineTo(cropBox->x1, cropBox->y2); - state->closePath(); - state->clip(); - out->clip(state); - state->clearPath(); - } -} - -Gfx::Gfx(XRef *xrefA, OutputDev *outA, Dict *resDict, - PDFRectangle *box, GBool crop, PDFRectangle *cropBox, - GBool (*abortCheckCbkA)(void *data), - void *abortCheckCbkDataA) { - int i; - - xref = xrefA; - subPage = gTrue; - printCommands = globalParams->getPrintCommands(); - - // start the resource stack - res = new GfxResources(xref, resDict, NULL); - - // initialize - out = outA; - state = new GfxState(72, 72, box, 0, gFalse); - fontChanged = gFalse; - clip = clipNone; - ignoreUndef = 0; - for (i = 0; i < 6; ++i) { - baseMatrix[i] = state->getCTM()[i]; - } - formDepth = 0; - abortCheckCbk = abortCheckCbkA; - abortCheckCbkData = abortCheckCbkDataA; - - // set crop box - if (crop) { - state->moveTo(cropBox->x1, cropBox->y1); - state->lineTo(cropBox->x2, cropBox->y1); - state->lineTo(cropBox->x2, cropBox->y2); - state->lineTo(cropBox->x1, cropBox->y2); - state->closePath(); - state->clip(); - out->clip(state); - state->clearPath(); - } -} - -Gfx::~Gfx() { - while (state->hasSaves()) { - restoreState(); - } - if (!subPage) { - out->endPage(); - } - while (res) { - popResources(); - } - if (state) { - delete state; - } -} - -void Gfx::display(Object *obj, GBool topLevel) { - Object obj2; - int i; - - if (obj->isArray()) { - for (i = 0; i < obj->arrayGetLength(); ++i) { - obj->arrayGet(i, &obj2); - if (!obj2.isStream()) { - error(-1, "Weird page contents"); - obj2.free(); - return; - } - obj2.free(); - } - } else if (!obj->isStream()) { - error(-1, "Weird page contents"); - return; - } - parser = new Parser(xref, new Lexer(xref, obj)); - go(topLevel); - delete parser; - parser = NULL; -} - -void Gfx::go(GBool topLevel) { - Object obj; - Object args[maxArgs]; - int numArgs, i; - int lastAbortCheck; - - // scan a sequence of objects - updateLevel = lastAbortCheck = 0; - numArgs = 0; - parser->getObj(&obj); - while (!obj.isEOF()) { - - // got a command - execute it - if (obj.isCmd()) { - if (printCommands) { - obj.print(stdout); - for (i = 0; i < numArgs; ++i) { - printf(" "); - args[i].print(stdout); - } - printf("\n"); - fflush(stdout); - } - execOp(&obj, args, numArgs); - obj.free(); - for (i = 0; i < numArgs; ++i) - args[i].free(); - numArgs = 0; - - // periodically update display - if (++updateLevel >= 20000) { - out->dump(); - updateLevel = 0; - } - - // check for an abort - if (abortCheckCbk) { - if (updateLevel - lastAbortCheck > 10) { - if ((*abortCheckCbk)(abortCheckCbkData)) { - break; - } - lastAbortCheck = updateLevel; - } - } - - // got an argument - save it - } else if (numArgs < maxArgs) { - args[numArgs++] = obj; - - // too many arguments - something is wrong - } else { - error(getPos(), "Too many args in content stream"); - if (printCommands) { - printf("throwing away arg: "); - obj.print(stdout); - printf("\n"); - fflush(stdout); - } - obj.free(); - } - - // grab the next object - parser->getObj(&obj); - } - obj.free(); - - // args at end with no command - if (numArgs > 0) { - error(getPos(), "Leftover args in content stream"); - if (printCommands) { - printf("%d leftovers:", numArgs); - for (i = 0; i < numArgs; ++i) { - printf(" "); - args[i].print(stdout); - } - printf("\n"); - fflush(stdout); - } - for (i = 0; i < numArgs; ++i) - args[i].free(); - } - - // update display - if (topLevel && updateLevel > 0) { - out->dump(); - } -} - -void Gfx::execOp(Object *cmd, Object args[], int numArgs) { - Operator *op; - char *name; - Object *argPtr; - int i; - - // find operator - name = cmd->getCmd(); - if (!(op = findOp(name))) { - if (ignoreUndef == 0) - error(getPos(), "Unknown operator '%s'", name); - return; - } - - // type check args - argPtr = args; - if (op->numArgs >= 0) { - if (numArgs < op->numArgs) { - error(getPos(), "Too few (%d) args to '%s' operator", numArgs, name); - return; - } - if (numArgs > op->numArgs) { -#if 0 - error(getPos(), "Too many (%d) args to '%s' operator", numArgs, name); -#endif - argPtr += numArgs - op->numArgs; - numArgs = op->numArgs; - } - } else { - if (numArgs > -op->numArgs) { - error(getPos(), "Too many (%d) args to '%s' operator", - numArgs, name); - return; - } - } - for (i = 0; i < numArgs; ++i) { - if (!checkArg(&argPtr[i], op->tchk[i])) { - error(getPos(), "Arg #%d to '%s' operator is wrong type (%s)", - i, name, argPtr[i].getTypeName()); - return; - } - } - - // do it - (this->*op->func)(argPtr, numArgs); -} - -Operator *Gfx::findOp(char *name) { - int a, b, m, cmp; - - a = -1; - b = numOps; - // invariant: opTab[a] < name < opTab[b] - while (b - a > 1) { - m = (a + b) / 2; - cmp = strcmp(opTab[m].name, name); - if (cmp < 0) - a = m; - else if (cmp > 0) - b = m; - else - a = b = m; - } - if (cmp != 0) - return NULL; - return &opTab[a]; -} - -GBool Gfx::checkArg(Object *arg, TchkType type) { - switch (type) { - case tchkBool: return arg->isBool(); - case tchkInt: return arg->isInt(); - case tchkNum: return arg->isNum(); - case tchkString: return arg->isString(); - case tchkName: return arg->isName(); - case tchkArray: return arg->isArray(); - case tchkProps: return arg->isDict() || arg->isName(); - case tchkSCN: return arg->isNum() || arg->isName(); - case tchkNone: return gFalse; - } - return gFalse; -} - -int Gfx::getPos() { - return parser ? parser->getPos() : -1; -} - -//------------------------------------------------------------------------ -// graphics state operators -//------------------------------------------------------------------------ - -void Gfx::opSave(Object args[], int numArgs) { - saveState(); -} - -void Gfx::opRestore(Object args[], int numArgs) { - restoreState(); -} - -void Gfx::opConcat(Object args[], int numArgs) { - state->concatCTM(args[0].getNum(), args[1].getNum(), - args[2].getNum(), args[3].getNum(), - args[4].getNum(), args[5].getNum()); - out->updateCTM(state, args[0].getNum(), args[1].getNum(), - args[2].getNum(), args[3].getNum(), - args[4].getNum(), args[5].getNum()); - fontChanged = gTrue; -} - -void Gfx::opSetDash(Object args[], int numArgs) { - Array *a; - int length; - Object obj; - double *dash; - int i; - - a = args[0].getArray(); - length = a->getLength(); - if (length == 0) { - dash = NULL; - } else { - dash = (double *)gmalloc(length * sizeof(double)); - for (i = 0; i < length; ++i) { - dash[i] = a->get(i, &obj)->getNum(); - obj.free(); - } - } - state->setLineDash(dash, length, args[1].getNum()); - out->updateLineDash(state); -} - -void Gfx::opSetFlat(Object args[], int numArgs) { - state->setFlatness((int)args[0].getNum()); - out->updateFlatness(state); -} - -void Gfx::opSetLineJoin(Object args[], int numArgs) { - state->setLineJoin(args[0].getInt()); - out->updateLineJoin(state); -} - -void Gfx::opSetLineCap(Object args[], int numArgs) { - state->setLineCap(args[0].getInt()); - out->updateLineCap(state); -} - -void Gfx::opSetMiterLimit(Object args[], int numArgs) { - state->setMiterLimit(args[0].getNum()); - out->updateMiterLimit(state); -} - -void Gfx::opSetLineWidth(Object args[], int numArgs) { - state->setLineWidth(args[0].getNum()); - out->updateLineWidth(state); -} - -void Gfx::opSetExtGState(Object args[], int numArgs) { - Object obj1, obj2; - - if (!res->lookupGState(args[0].getName(), &obj1)) { - return; - } - if (!obj1.isDict()) { - error(getPos(), "ExtGState '%s' is wrong type", args[0].getName()); - obj1.free(); - return; - } - if (obj1.dictLookup("ca", &obj2)->isNum()) { - state->setFillOpacity(obj2.getNum()); - out->updateFillOpacity(state); - } - obj2.free(); - if (obj1.dictLookup("CA", &obj2)->isNum()) { - state->setStrokeOpacity(obj2.getNum()); - out->updateStrokeOpacity(state); - } - obj2.free(); - obj1.free(); -} - -void Gfx::opSetRenderingIntent(Object args[], int numArgs) { -} - -//------------------------------------------------------------------------ -// color operators -//------------------------------------------------------------------------ - -void Gfx::opSetFillGray(Object args[], int numArgs) { - GfxColor color; - - state->setFillPattern(NULL); - state->setFillColorSpace(new GfxDeviceGrayColorSpace()); - color.c[0] = args[0].getNum(); - state->setFillColor(&color); - out->updateFillColor(state); -} - -void Gfx::opSetStrokeGray(Object args[], int numArgs) { - GfxColor color; - - state->setStrokePattern(NULL); - state->setStrokeColorSpace(new GfxDeviceGrayColorSpace()); - color.c[0] = args[0].getNum(); - state->setStrokeColor(&color); - out->updateStrokeColor(state); -} - -void Gfx::opSetFillCMYKColor(Object args[], int numArgs) { - GfxColor color; - int i; - - state->setFillPattern(NULL); - state->setFillColorSpace(new GfxDeviceCMYKColorSpace()); - for (i = 0; i < 4; ++i) { - color.c[i] = args[i].getNum(); - } - state->setFillColor(&color); - out->updateFillColor(state); -} - -void Gfx::opSetStrokeCMYKColor(Object args[], int numArgs) { - GfxColor color; - int i; - - state->setStrokePattern(NULL); - state->setStrokeColorSpace(new GfxDeviceCMYKColorSpace()); - for (i = 0; i < 4; ++i) { - color.c[i] = args[i].getNum(); - } - state->setStrokeColor(&color); - out->updateStrokeColor(state); -} - -void Gfx::opSetFillRGBColor(Object args[], int numArgs) { - GfxColor color; - int i; - - state->setFillPattern(NULL); - state->setFillColorSpace(new GfxDeviceRGBColorSpace()); - for (i = 0; i < 3; ++i) { - color.c[i] = args[i].getNum(); - } - state->setFillColor(&color); - out->updateFillColor(state); -} - -void Gfx::opSetStrokeRGBColor(Object args[], int numArgs) { - GfxColor color; - int i; - - state->setStrokePattern(NULL); - state->setStrokeColorSpace(new GfxDeviceRGBColorSpace()); - for (i = 0; i < 3; ++i) { - color.c[i] = args[i].getNum(); - } - state->setStrokeColor(&color); - out->updateStrokeColor(state); -} - -void Gfx::opSetFillColorSpace(Object args[], int numArgs) { - Object obj; - GfxColorSpace *colorSpace; - GfxColor color; - int i; - - state->setFillPattern(NULL); - res->lookupColorSpace(args[0].getName(), &obj); - if (obj.isNull()) { - colorSpace = GfxColorSpace::parse(&args[0]); - } else { - colorSpace = GfxColorSpace::parse(&obj); - } - obj.free(); - if (colorSpace) { - state->setFillColorSpace(colorSpace); - } else { - error(getPos(), "Bad color space (fill)"); - } - for (i = 0; i < gfxColorMaxComps; ++i) { - color.c[i] = 0; - } - state->setFillColor(&color); - out->updateFillColor(state); -} - -void Gfx::opSetStrokeColorSpace(Object args[], int numArgs) { - Object obj; - GfxColorSpace *colorSpace; - GfxColor color; - int i; - - state->setStrokePattern(NULL); - res->lookupColorSpace(args[0].getName(), &obj); - if (obj.isNull()) { - colorSpace = GfxColorSpace::parse(&args[0]); - } else { - colorSpace = GfxColorSpace::parse(&obj); - } - obj.free(); - if (colorSpace) { - state->setStrokeColorSpace(colorSpace); - } else { - error(getPos(), "Bad color space (stroke)"); - } - for (i = 0; i < gfxColorMaxComps; ++i) { - color.c[i] = 0; - } - state->setStrokeColor(&color); - out->updateStrokeColor(state); -} - -void Gfx::opSetFillColor(Object args[], int numArgs) { - GfxColor color; - int i; - - state->setFillPattern(NULL); - for (i = 0; i < numArgs; ++i) { - color.c[i] = args[i].getNum(); - } - state->setFillColor(&color); - out->updateFillColor(state); -} - -void Gfx::opSetStrokeColor(Object args[], int numArgs) { - GfxColor color; - int i; - - state->setStrokePattern(NULL); - for (i = 0; i < numArgs; ++i) { - color.c[i] = args[i].getNum(); - } - state->setStrokeColor(&color); - out->updateStrokeColor(state); -} - -void Gfx::opSetFillColorN(Object args[], int numArgs) { - GfxColor color; - GfxPattern *pattern; - int i; - - if (state->getFillColorSpace()->getMode() == csPattern) { - if (numArgs > 1) { - for (i = 0; i < numArgs && i < 4; ++i) { - if (args[i].isNum()) { - color.c[i] = args[i].getNum(); - } - } - state->setFillColor(&color); - out->updateFillColor(state); - } - if (args[numArgs-1].isName() && - (pattern = res->lookupPattern(args[numArgs-1].getName()))) { - state->setFillPattern(pattern); - } - - } else { - state->setFillPattern(NULL); - for (i = 0; i < numArgs && i < 4; ++i) { - if (args[i].isNum()) { - color.c[i] = args[i].getNum(); - } - } - state->setFillColor(&color); - out->updateFillColor(state); - } -} - -void Gfx::opSetStrokeColorN(Object args[], int numArgs) { - GfxColor color; - GfxPattern *pattern; - int i; - - if (state->getStrokeColorSpace()->getMode() == csPattern) { - if (numArgs > 1) { - for (i = 0; i < numArgs && i < 4; ++i) { - if (args[i].isNum()) { - color.c[i] = args[i].getNum(); - } - } - state->setStrokeColor(&color); - out->updateStrokeColor(state); - } - if (args[numArgs-1].isName() && - (pattern = res->lookupPattern(args[numArgs-1].getName()))) { - state->setStrokePattern(pattern); - } - - } else { - state->setStrokePattern(NULL); - for (i = 0; i < numArgs && i < 4; ++i) { - if (args[i].isNum()) { - color.c[i] = args[i].getNum(); - } - } - state->setStrokeColor(&color); - out->updateStrokeColor(state); - } -} - -//------------------------------------------------------------------------ -// path segment operators -//------------------------------------------------------------------------ - -void Gfx::opMoveTo(Object args[], int numArgs) { - state->moveTo(args[0].getNum(), args[1].getNum()); -} - -void Gfx::opLineTo(Object args[], int numArgs) { - if (!state->isCurPt()) { - error(getPos(), "No current point in lineto"); - return; - } - state->lineTo(args[0].getNum(), args[1].getNum()); -} - -void Gfx::opCurveTo(Object args[], int numArgs) { - double x1, y1, x2, y2, x3, y3; - - if (!state->isCurPt()) { - error(getPos(), "No current point in curveto"); - return; - } - x1 = args[0].getNum(); - y1 = args[1].getNum(); - x2 = args[2].getNum(); - y2 = args[3].getNum(); - x3 = args[4].getNum(); - y3 = args[5].getNum(); - state->curveTo(x1, y1, x2, y2, x3, y3); -} - -void Gfx::opCurveTo1(Object args[], int numArgs) { - double x1, y1, x2, y2, x3, y3; - - if (!state->isCurPt()) { - error(getPos(), "No current point in curveto1"); - return; - } - x1 = state->getCurX(); - y1 = state->getCurY(); - x2 = args[0].getNum(); - y2 = args[1].getNum(); - x3 = args[2].getNum(); - y3 = args[3].getNum(); - state->curveTo(x1, y1, x2, y2, x3, y3); -} - -void Gfx::opCurveTo2(Object args[], int numArgs) { - double x1, y1, x2, y2, x3, y3; - - if (!state->isCurPt()) { - error(getPos(), "No current point in curveto2"); - return; - } - x1 = args[0].getNum(); - y1 = args[1].getNum(); - x2 = args[2].getNum(); - y2 = args[3].getNum(); - x3 = x2; - y3 = y2; - state->curveTo(x1, y1, x2, y2, x3, y3); -} - -void Gfx::opRectangle(Object args[], int numArgs) { - double x, y, w, h; - - x = args[0].getNum(); - y = args[1].getNum(); - w = args[2].getNum(); - h = args[3].getNum(); - state->moveTo(x, y); - state->lineTo(x + w, y); - state->lineTo(x + w, y + h); - state->lineTo(x, y + h); - state->closePath(); -} - -void Gfx::opClosePath(Object args[], int numArgs) { - if (!state->isCurPt()) { - error(getPos(), "No current point in closepath"); - return; - } - state->closePath(); -} - -//------------------------------------------------------------------------ -// path painting operators -//------------------------------------------------------------------------ - -void Gfx::opEndPath(Object args[], int numArgs) { - doEndPath(); -} - -void Gfx::opStroke(Object args[], int numArgs) { - if (!state->isCurPt()) { - //error(getPos(), "No path in stroke"); - return; - } - if (state->isPath()) - out->stroke(state); - doEndPath(); -} - -void Gfx::opCloseStroke(Object args[], int numArgs) { - if (!state->isCurPt()) { - //error(getPos(), "No path in closepath/stroke"); - return; - } - if (state->isPath()) { - state->closePath(); - out->stroke(state); - } - doEndPath(); -} - -void Gfx::opFill(Object args[], int numArgs) { - if (!state->isCurPt()) { - //error(getPos(), "No path in fill"); - return; - } - if (state->isPath()) { - if (state->getFillColorSpace()->getMode() == csPattern) { - doPatternFill(gFalse); - } else { - out->fill(state); - } - } - doEndPath(); -} - -void Gfx::opEOFill(Object args[], int numArgs) { - if (!state->isCurPt()) { - //error(getPos(), "No path in eofill"); - return; - } - if (state->isPath()) { - if (state->getFillColorSpace()->getMode() == csPattern) { - doPatternFill(gTrue); - } else { - out->eoFill(state); - } - } - doEndPath(); -} - -void Gfx::opFillStroke(Object args[], int numArgs) { - if (!state->isCurPt()) { - //error(getPos(), "No path in fill/stroke"); - return; - } - if (state->isPath()) { - if (state->getFillColorSpace()->getMode() == csPattern) { - doPatternFill(gFalse); - } else { - out->fill(state); - } - out->stroke(state); - } - doEndPath(); -} - -void Gfx::opCloseFillStroke(Object args[], int numArgs) { - if (!state->isCurPt()) { - //error(getPos(), "No path in closepath/fill/stroke"); - return; - } - if (state->isPath()) { - state->closePath(); - if (state->getFillColorSpace()->getMode() == csPattern) { - doPatternFill(gFalse); - } else { - out->fill(state); - } - out->stroke(state); - } - doEndPath(); -} - -void Gfx::opEOFillStroke(Object args[], int numArgs) { - if (!state->isCurPt()) { - //error(getPos(), "No path in eofill/stroke"); - return; - } - if (state->isPath()) { - if (state->getFillColorSpace()->getMode() == csPattern) { - doPatternFill(gTrue); - } else { - out->eoFill(state); - } - out->stroke(state); - } - doEndPath(); -} - -void Gfx::opCloseEOFillStroke(Object args[], int numArgs) { - if (!state->isCurPt()) { - //error(getPos(), "No path in closepath/eofill/stroke"); - return; - } - if (state->isPath()) { - state->closePath(); - if (state->getFillColorSpace()->getMode() == csPattern) { - doPatternFill(gTrue); - } else { - out->eoFill(state); - } - out->stroke(state); - } - doEndPath(); -} - -void Gfx::doPatternFill(GBool eoFill) { - GfxPattern *pattern; - - // this is a bit of a kludge -- patterns can be really slow, so we - // skip them if we're only doing text extraction, since they almost - // certainly don't contain any text - if (!out->needNonText()) { - return; - } - - if (!(pattern = state->getFillPattern())) { - return; - } - switch (pattern->getType()) { - case 1: - doTilingPatternFill((GfxTilingPattern *)pattern, eoFill); - break; - case 2: - doShadingPatternFill((GfxShadingPattern *)pattern, eoFill); - break; - default: - error(getPos(), "Unimplemented pattern type (%d) in fill", - pattern->getType()); - break; - } -} - -void Gfx::doTilingPatternFill(GfxTilingPattern *tPat, GBool eoFill) { - GfxPatternColorSpace *patCS; - GfxColorSpace *cs; - GfxPath *savedPath; - double xMin, yMin, xMax, yMax, x, y, x1, y1; - double cxMin, cyMin, cxMax, cyMax; - int xi0, yi0, xi1, yi1, xi, yi; - double *ctm, *btm, *ptm; - double m[6], ictm[6], m1[6], imb[6]; - double det; - double xstep, ystep; - int i; - - // get color space - patCS = (GfxPatternColorSpace *)state->getFillColorSpace(); - - // construct a (pattern space) -> (current space) transform matrix - ctm = state->getCTM(); - btm = baseMatrix; - ptm = tPat->getMatrix(); - // iCTM = invert CTM - det = 1 / (ctm[0] * ctm[3] - ctm[1] * ctm[2]); - ictm[0] = ctm[3] * det; - ictm[1] = -ctm[1] * det; - ictm[2] = -ctm[2] * det; - ictm[3] = ctm[0] * det; - ictm[4] = (ctm[2] * ctm[5] - ctm[3] * ctm[4]) * det; - ictm[5] = (ctm[1] * ctm[4] - ctm[0] * ctm[5]) * det; - // m1 = PTM * BTM = PTM * base transform matrix - m1[0] = ptm[0] * btm[0] + ptm[1] * btm[2]; - m1[1] = ptm[0] * btm[1] + ptm[1] * btm[3]; - m1[2] = ptm[2] * btm[0] + ptm[3] * btm[2]; - m1[3] = ptm[2] * btm[1] + ptm[3] * btm[3]; - m1[4] = ptm[4] * btm[0] + ptm[5] * btm[2] + btm[4]; - m1[5] = ptm[4] * btm[1] + ptm[5] * btm[3] + btm[5]; - // m = m1 * iCTM = (PTM * BTM) * (iCTM) - m[0] = m1[0] * ictm[0] + m1[1] * ictm[2]; - m[1] = m1[0] * ictm[1] + m1[1] * ictm[3]; - m[2] = m1[2] * ictm[0] + m1[3] * ictm[2]; - m[3] = m1[2] * ictm[1] + m1[3] * ictm[3]; - m[4] = m1[4] * ictm[0] + m1[5] * ictm[2] + ictm[4]; - m[5] = m1[4] * ictm[1] + m1[5] * ictm[3] + ictm[5]; - - // construct a (base space) -> (pattern space) transform matrix - det = 1 / (m1[0] * m1[3] - m1[1] * m1[2]); - imb[0] = m1[3] * det; - imb[1] = -m1[1] * det; - imb[2] = -m1[2] * det; - imb[3] = m1[0] * det; - imb[4] = (m1[2] * m1[5] - m1[3] * m1[4]) * det; - imb[5] = (m1[1] * m1[4] - m1[0] * m1[5]) * det; - - // save current graphics state - savedPath = state->getPath()->copy(); - saveState(); - - // set underlying color space (for uncolored tiling patterns); set - // various other parameters (stroke color, line width) to match - // Adobe's behavior - if (tPat->getPaintType() == 2 && (cs = patCS->getUnder())) { - state->setFillColorSpace(cs->copy()); - state->setStrokeColorSpace(cs->copy()); - state->setStrokeColor(state->getFillColor()); - } else { - state->setFillColorSpace(new GfxDeviceGrayColorSpace()); - state->setStrokeColorSpace(new GfxDeviceGrayColorSpace()); - } - state->setFillPattern(NULL); - out->updateFillColor(state); - state->setStrokePattern(NULL); - out->updateStrokeColor(state); - state->setLineWidth(0); - out->updateLineWidth(state); - - // clip to current path - state->clip(); - if (eoFill) { - out->eoClip(state); - } else { - out->clip(state); - } - state->clearPath(); - - // transform clip region bbox to pattern space - state->getClipBBox(&cxMin, &cyMin, &cxMax, &cyMax); - xMin = xMax = cxMin * imb[0] + cyMin * imb[2] + imb[4]; - yMin = yMax = cxMin * imb[1] + cyMin * imb[3] + imb[5]; - x1 = cxMin * imb[0] + cyMax * imb[2] + imb[4]; - y1 = cxMin * imb[1] + cyMax * imb[3] + imb[5]; - if (x1 < xMin) { - xMin = x1; - } else if (x1 > xMax) { - xMax = x1; - } - if (y1 < yMin) { - yMin = y1; - } else if (y1 > yMax) { - yMax = y1; - } - x1 = cxMax * imb[0] + cyMin * imb[2] + imb[4]; - y1 = cxMax * imb[1] + cyMin * imb[3] + imb[5]; - if (x1 < xMin) { - xMin = x1; - } else if (x1 > xMax) { - xMax = x1; - } - if (y1 < yMin) { - yMin = y1; - } else if (y1 > yMax) { - yMax = y1; - } - x1 = cxMax * imb[0] + cyMax * imb[2] + imb[4]; - y1 = cxMax * imb[1] + cyMax * imb[3] + imb[5]; - if (x1 < xMin) { - xMin = x1; - } else if (x1 > xMax) { - xMax = x1; - } - if (y1 < yMin) { - yMin = y1; - } else if (y1 > yMax) { - yMax = y1; - } - - // draw the pattern - //~ this should treat negative steps differently -- start at right/top - //~ edge instead of left/bottom (?) - xstep = fabs(tPat->getXStep()); - ystep = fabs(tPat->getYStep()); - xi0 = (int)floor((xMin - tPat->getBBox()[0]) / xstep); - xi1 = (int)ceil((xMax - tPat->getBBox()[0]) / xstep); - yi0 = (int)floor((yMin - tPat->getBBox()[1]) / ystep); - yi1 = (int)ceil((yMax - tPat->getBBox()[1]) / ystep); - for (i = 0; i < 4; ++i) { - m1[i] = m[i]; - } - for (yi = yi0; yi < yi1; ++yi) { - for (xi = xi0; xi < xi1; ++xi) { - x = xi * xstep; - y = yi * ystep; - m1[4] = x * m[0] + y * m[2] + m[4]; - m1[5] = x * m[1] + y * m[3] + m[5]; - doForm1(tPat->getContentStream(), tPat->getResDict(), - m1, tPat->getBBox()); - } - } - - // restore graphics state - restoreState(); - state->setPath(savedPath); -} - -void Gfx::doShadingPatternFill(GfxShadingPattern *sPat, GBool eoFill) { - GfxShading *shading; - GfxPath *savedPath; - double *ctm, *btm, *ptm; - double m[6], ictm[6], m1[6]; - double xMin, yMin, xMax, yMax; - double det; - - shading = sPat->getShading(); - - // save current graphics state - savedPath = state->getPath()->copy(); - saveState(); - - // clip to bbox - if (shading->getHasBBox()) { - shading->getBBox(&xMin, &yMin, &xMax, &yMax); - state->moveTo(xMin, yMin); - state->lineTo(xMax, yMin); - state->lineTo(xMax, yMax); - state->lineTo(xMin, yMax); - state->closePath(); - state->clip(); - out->clip(state); - state->clearPath(); - } - - // clip to current path - state->clip(); - if (eoFill) { - out->eoClip(state); - } else { - out->clip(state); - } - state->clearPath(); - - // construct a (pattern space) -> (current space) transform matrix - ctm = state->getCTM(); - btm = baseMatrix; - ptm = sPat->getMatrix(); - // iCTM = invert CTM - det = 1 / (ctm[0] * ctm[3] - ctm[1] * ctm[2]); - ictm[0] = ctm[3] * det; - ictm[1] = -ctm[1] * det; - ictm[2] = -ctm[2] * det; - ictm[3] = ctm[0] * det; - ictm[4] = (ctm[2] * ctm[5] - ctm[3] * ctm[4]) * det; - ictm[5] = (ctm[1] * ctm[4] - ctm[0] * ctm[5]) * det; - // m1 = PTM * BTM = PTM * base transform matrix - m1[0] = ptm[0] * btm[0] + ptm[1] * btm[2]; - m1[1] = ptm[0] * btm[1] + ptm[1] * btm[3]; - m1[2] = ptm[2] * btm[0] + ptm[3] * btm[2]; - m1[3] = ptm[2] * btm[1] + ptm[3] * btm[3]; - m1[4] = ptm[4] * btm[0] + ptm[5] * btm[2] + btm[4]; - m1[5] = ptm[4] * btm[1] + ptm[5] * btm[3] + btm[5]; - // m = m1 * iCTM = (PTM * BTM) * (iCTM) - m[0] = m1[0] * ictm[0] + m1[1] * ictm[2]; - m[1] = m1[0] * ictm[1] + m1[1] * ictm[3]; - m[2] = m1[2] * ictm[0] + m1[3] * ictm[2]; - m[3] = m1[2] * ictm[1] + m1[3] * ictm[3]; - m[4] = m1[4] * ictm[0] + m1[5] * ictm[2] + ictm[4]; - m[5] = m1[4] * ictm[1] + m1[5] * ictm[3] + ictm[5]; - - // set the new matrix - state->concatCTM(m[0], m[1], m[2], m[3], m[4], m[5]); - out->updateCTM(state, m[0], m[1], m[2], m[3], m[4], m[5]); - - // set the color space - state->setFillColorSpace(shading->getColorSpace()->copy()); - - // do shading type-specific operations - switch (shading->getType()) { - case 1: - doFunctionShFill((GfxFunctionShading *)shading); - break; - case 2: - doAxialShFill((GfxAxialShading *)shading); - break; - case 3: - doRadialShFill((GfxRadialShading *)shading); - break; - } - - // restore graphics state - restoreState(); - state->setPath(savedPath); -} - -void Gfx::opShFill(Object args[], int numArgs) { - GfxShading *shading; - GfxPath *savedPath; - double xMin, yMin, xMax, yMax; - - if (!(shading = res->lookupShading(args[0].getName()))) { - return; - } - - // save current graphics state - savedPath = state->getPath()->copy(); - saveState(); - - // clip to bbox - if (shading->getHasBBox()) { - shading->getBBox(&xMin, &yMin, &xMax, &yMax); - state->moveTo(xMin, yMin); - state->lineTo(xMax, yMin); - state->lineTo(xMax, yMax); - state->lineTo(xMin, yMax); - state->closePath(); - state->clip(); - out->clip(state); - state->clearPath(); - } - - // set the color space - state->setFillColorSpace(shading->getColorSpace()->copy()); - - // do shading type-specific operations - switch (shading->getType()) { - case 1: - doFunctionShFill((GfxFunctionShading *)shading); - break; - case 2: - doAxialShFill((GfxAxialShading *)shading); - break; - case 3: - doRadialShFill((GfxRadialShading *)shading); - break; - } - - // restore graphics state - restoreState(); - state->setPath(savedPath); - - delete shading; -} - -void Gfx::doFunctionShFill(GfxFunctionShading *shading) { - double x0, y0, x1, y1; - GfxColor colors[4]; - - shading->getDomain(&x0, &y0, &x1, &y1); - shading->getColor(x0, y0, &colors[0]); - shading->getColor(x0, y1, &colors[1]); - shading->getColor(x1, y0, &colors[2]); - shading->getColor(x1, y1, &colors[3]); - doFunctionShFill1(shading, x0, y0, x1, y1, colors, 0); -} - -void Gfx::doFunctionShFill1(GfxFunctionShading *shading, - double x0, double y0, - double x1, double y1, - GfxColor *colors, int depth) { - GfxColor fillColor; - GfxColor color0M, color1M, colorM0, colorM1, colorMM; - GfxColor colors2[4]; - double *matrix; - double xM, yM; - int nComps, i, j; - - nComps = shading->getColorSpace()->getNComps(); - matrix = shading->getMatrix(); - - // compare the four corner colors - for (i = 0; i < 4; ++i) { - for (j = 0; j < nComps; ++j) { - if (fabs(colors[i].c[j] - colors[(i+1)&3].c[j]) > functionColorDelta) { - break; - } - } - if (j < nComps) { - break; - } - } - - // center of the rectangle - xM = 0.5 * (x0 + x1); - yM = 0.5 * (y0 + y1); - - // the four corner colors are close (or we hit the recursive limit) - // -- fill the rectangle; but require at least one subdivision - // (depth==0) to avoid problems when the four outer corners of the - // shaded region are the same color - if ((i == 4 && depth > 0) || depth == functionMaxDepth) { - - // use the center color - shading->getColor(xM, yM, &fillColor); - state->setFillColor(&fillColor); - out->updateFillColor(state); - - // fill the rectangle - state->moveTo(x0 * matrix[0] + y0 * matrix[2] + matrix[4], - x0 * matrix[1] + y0 * matrix[3] + matrix[5]); - state->lineTo(x1 * matrix[0] + y0 * matrix[2] + matrix[4], - x1 * matrix[1] + y0 * matrix[3] + matrix[5]); - state->lineTo(x1 * matrix[0] + y1 * matrix[2] + matrix[4], - x1 * matrix[1] + y1 * matrix[3] + matrix[5]); - state->lineTo(x0 * matrix[0] + y1 * matrix[2] + matrix[4], - x0 * matrix[1] + y1 * matrix[3] + matrix[5]); - state->closePath(); - out->fill(state); - state->clearPath(); - - // the four corner colors are not close enough -- subdivide the - // rectangle - } else { - - // colors[0] colorM0 colors[2] - // (x0,y0) (xM,y0) (x1,y0) - // +----------+----------+ - // | | | - // | UL | UR | - // color0M | colorMM | color1M - // (x0,yM) +----------+----------+ (x1,yM) - // | (xM,yM) | - // | LL | LR | - // | | | - // +----------+----------+ - // colors[1] colorM1 colors[3] - // (x0,y1) (xM,y1) (x1,y1) - - shading->getColor(x0, yM, &color0M); - shading->getColor(x1, yM, &color1M); - shading->getColor(xM, y0, &colorM0); - shading->getColor(xM, y1, &colorM1); - shading->getColor(xM, yM, &colorMM); - - // upper-left sub-rectangle - colors2[0] = colors[0]; - colors2[1] = color0M; - colors2[2] = colorM0; - colors2[3] = colorMM; - doFunctionShFill1(shading, x0, y0, xM, yM, colors2, depth + 1); - - // lower-left sub-rectangle - colors2[0] = color0M; - colors2[1] = colors[1]; - colors2[2] = colorMM; - colors2[3] = colorM1; - doFunctionShFill1(shading, x0, yM, xM, y1, colors2, depth + 1); - - // upper-right sub-rectangle - colors2[0] = colorM0; - colors2[1] = colorMM; - colors2[2] = colors[2]; - colors2[3] = color1M; - doFunctionShFill1(shading, xM, y0, x1, yM, colors2, depth + 1); - - // lower-right sub-rectangle - colors2[0] = colorMM; - colors2[1] = colorM1; - colors2[2] = color1M; - colors2[3] = colors[3]; - doFunctionShFill1(shading, xM, yM, x1, y1, colors2, depth + 1); - } -} - -void Gfx::doAxialShFill(GfxAxialShading *shading) { - double xMin, yMin, xMax, yMax; - double x0, y0, x1, y1; - double dx, dy, mul; - double tMin, tMax, t, tx, ty; - double s[4], sMin, sMax, tmp; - double ux0, uy0, ux1, uy1, vx0, vy0, vx1, vy1; - double t0, t1, tt; - double ta[axialMaxSplits + 1]; - int next[axialMaxSplits + 1]; - GfxColor color0, color1; - int nComps; - int i, j, k, kk; - - // get the clip region bbox - state->getUserClipBBox(&xMin, &yMin, &xMax, &yMax); - - // compute min and max t values, based on the four corners of the - // clip region bbox - shading->getCoords(&x0, &y0, &x1, &y1); - dx = x1 - x0; - dy = y1 - y0; - mul = 1 / (dx * dx + dy * dy); - tMin = tMax = ((xMin - x0) * dx + (yMin - y0) * dy) * mul; - t = ((xMin - x0) * dx + (yMax - y0) * dy) * mul; - if (t < tMin) { - tMin = t; - } else if (t > tMax) { - tMax = t; - } - t = ((xMax - x0) * dx + (yMin - y0) * dy) * mul; - if (t < tMin) { - tMin = t; - } else if (t > tMax) { - tMax = t; - } - t = ((xMax - x0) * dx + (yMax - y0) * dy) * mul; - if (t < tMin) { - tMin = t; - } else if (t > tMax) { - tMax = t; - } - if (tMin < 0 && !shading->getExtend0()) { - tMin = 0; - } - if (tMax > 1 && !shading->getExtend1()) { - tMax = 1; - } - - // get the function domain - t0 = shading->getDomain0(); - t1 = shading->getDomain1(); - - // Traverse the t axis and do the shading. - // - // For each point (tx, ty) on the t axis, consider a line through - // that point perpendicular to the t axis: - // - // x(s) = tx + s * -dy --> s = (x - tx) / -dy - // y(s) = ty + s * dx --> s = (y - ty) / dx - // - // Then look at the intersection of this line with the bounding box - // (xMin, yMin, xMax, yMax). In the general case, there are four - // intersection points: - // - // s0 = (xMin - tx) / -dy - // s1 = (xMax - tx) / -dy - // s2 = (yMin - ty) / dx - // s3 = (yMax - ty) / dx - // - // and we want the middle two s values. - // - // In the case where dx = 0, take s0 and s1; in the case where dy = - // 0, take s2 and s3. - // - // Each filled polygon is bounded by two of these line segments - // perpdendicular to the t axis. - // - // The t axis is bisected into smaller regions until the color - // difference across a region is small enough, and then the region - // is painted with a single color. - - // set up: require at least one split to avoid problems when the two - // ends of the t axis have the same color - nComps = shading->getColorSpace()->getNComps(); - ta[0] = tMin; - next[0] = axialMaxSplits / 2; - ta[axialMaxSplits / 2] = 0.5 * (tMin + tMax); - next[axialMaxSplits / 2] = axialMaxSplits; - ta[axialMaxSplits] = tMax; - - // compute the color at t = tMin - if (tMin < 0) { - tt = t0; - } else if (tMin > 1) { - tt = t1; - } else { - tt = t0 + (t1 - t0) * tMin; - } - shading->getColor(tt, &color0); - - // compute the coordinates of the point on the t axis at t = tMin; - // then compute the intersection of the perpendicular line with the - // bounding box - tx = x0 + tMin * dx; - ty = y0 + tMin * dy; - if (dx == 0 && dy == 0) { - sMin = sMax = 0; - } if (dx == 0) { - sMin = (xMin - tx) / -dy; - sMax = (xMax - tx) / -dy; - if (sMin > sMax) { tmp = sMin; sMin = sMax; sMax = tmp; } - } else if (dy == 0) { - sMin = (yMin - ty) / dx; - sMax = (yMax - ty) / dx; - if (sMin > sMax) { tmp = sMin; sMin = sMax; sMax = tmp; } - } else { - s[0] = (yMin - ty) / dx; - s[1] = (yMax - ty) / dx; - s[2] = (xMin - tx) / -dy; - s[3] = (xMax - tx) / -dy; - for (j = 0; j < 3; ++j) { - kk = j; - for (k = j + 1; k < 4; ++k) { - if (s[k] < s[kk]) { - kk = k; - } - } - tmp = s[j]; s[j] = s[kk]; s[kk] = tmp; - } - sMin = s[1]; - sMax = s[2]; - } - ux0 = tx - sMin * dy; - uy0 = ty + sMin * dx; - vx0 = tx - sMax * dy; - vy0 = ty + sMax * dx; - - i = 0; - while (i < axialMaxSplits) { - - // bisect until color difference is small enough or we hit the - // bisection limit - j = next[i]; - while (j > i + 1) { - if (ta[j] < 0) { - tt = t0; - } else if (ta[j] > 1) { - tt = t1; - } else { - tt = t0 + (t1 - t0) * ta[j]; - } - shading->getColor(tt, &color1); - for (k = 0; k < nComps; ++k) { - if (fabs(color1.c[k] - color0.c[k]) > axialColorDelta) { - break; - } - } - if (k == nComps) { - break; - } - k = (i + j) / 2; - ta[k] = 0.5 * (ta[i] + ta[j]); - next[i] = k; - next[k] = j; - j = k; - } - - // use the average of the colors of the two sides of the region - for (k = 0; k < nComps; ++k) { - color0.c[k] = 0.5 * (color0.c[k] + color1.c[k]); - } - - // compute the coordinates of the point on the t axis; then - // compute the intersection of the perpendicular line with the - // bounding box - tx = x0 + ta[j] * dx; - ty = y0 + ta[j] * dy; - if (dx == 0 && dy == 0) { - sMin = sMax = 0; - } if (dx == 0) { - sMin = (xMin - tx) / -dy; - sMax = (xMax - tx) / -dy; - if (sMin > sMax) { tmp = sMin; sMin = sMax; sMax = tmp; } - } else if (dy == 0) { - sMin = (yMin - ty) / dx; - sMax = (yMax - ty) / dx; - if (sMin > sMax) { tmp = sMin; sMin = sMax; sMax = tmp; } - } else { - s[0] = (yMin - ty) / dx; - s[1] = (yMax - ty) / dx; - s[2] = (xMin - tx) / -dy; - s[3] = (xMax - tx) / -dy; - for (j = 0; j < 3; ++j) { - kk = j; - for (k = j + 1; k < 4; ++k) { - if (s[k] < s[kk]) { - kk = k; - } - } - tmp = s[j]; s[j] = s[kk]; s[kk] = tmp; - } - sMin = s[1]; - sMax = s[2]; - } - ux1 = tx - sMin * dy; - uy1 = ty + sMin * dx; - vx1 = tx - sMax * dy; - vy1 = ty + sMax * dx; - - // set the color - state->setFillColor(&color0); - out->updateFillColor(state); - - // fill the region - state->moveTo(ux0, uy0); - state->lineTo(vx0, vy0); - state->lineTo(vx1, vy1); - state->lineTo(ux1, uy1); - state->closePath(); - out->fill(state); - state->clearPath(); - - // set up for next region - ux0 = ux1; - uy0 = uy1; - vx0 = vx1; - vy0 = vy1; - color0 = color1; - i = next[i]; - } -} - -void Gfx::doRadialShFill(GfxRadialShading *shading) { - double sMin, sMax, xMin, yMin, xMax, yMax; - double x0, y0, r0, x1, y1, r1, t0, t1; - int nComps; - GfxColor colorA, colorB; - double xa, ya, xb, yb, ra, rb; - double ta, tb, sa, sb; - int ia, ib, k, n; - double *ctm; - double angle, t; - - // get the shading info - shading->getCoords(&x0, &y0, &r0, &x1, &y1, &r1); - t0 = shading->getDomain0(); - t1 = shading->getDomain1(); - nComps = shading->getColorSpace()->getNComps(); - - // compute the (possibly extended) s range - sMin = 0; - sMax = 1; - if (shading->getExtend0()) { - if (r0 < r1) { - // extend the smaller end - sMin = -r0 / (r1 - r0); - } else { - // extend the larger end - //~ this computes the diagonal of the bounding box -- we should - //~ really compute the intersection of the moving/expanding - //~ circles with each of the four corners and look for the max - //~ radius - state->getUserClipBBox(&xMin, &yMin, &xMax, &yMax); - sMin = (sqrt((xMax - xMin) * (xMax - xMin) + - (yMax - yMin) * (yMax - yMin)) - r0) / (r1 - r0); - if (sMin > 0) { - sMin = 0; - } else if (sMin < -20) { - // sanity check - sMin = -20; - } - } - } - if (shading->getExtend1()) { - if (r1 < r0) { - // extend the smaller end - sMax = -r0 / (r1 - r0); - } else if (r1 > r0) { - // extend the larger end - state->getUserClipBBox(&xMin, &yMin, &xMax, &yMax); - sMax = (sqrt((xMax - xMin) * (xMax - xMin) + - (yMax - yMin) * (yMax - yMin)) - r0) / (r1 - r0); - if (sMax < 1) { - sMin = 1; - } else if (sMax > 20) { - // sanity check - sMax = 20; - } - } - } - - // compute the number of steps into which circles must be divided to - // achieve a curve flatness of 0.1 pixel in device space for the - // largest circle (note that "device space" is 72 dpi when generating - // PostScript, hence the relatively small 0.1 pixel accuracy) - ctm = state->getCTM(); - t = fabs(ctm[0]); - if (fabs(ctm[1]) > t) { - t = fabs(ctm[1]); - } - if (fabs(ctm[2]) > t) { - t = fabs(ctm[2]); - } - if (fabs(ctm[3]) > t) { - t = fabs(ctm[3]); - } - if (r0 > r1) { - t *= r0; - } else { - t *= r1; - } - if (t < 1) { - n = 3; - } else { - n = (int)(M_PI / acos(1 - 0.1 / t)); - if (n < 3) { - n = 3; - } else if (n > 200) { - n = 200; - } - } - - // Traverse the t axis and do the shading. - // - // This generates and fills a series of rings. Each ring is defined - // by two circles: - // sa, ta, xa, ya, ra, colorA - // sb, tb, xb, yb, rb, colorB - // - // The s/t axis is divided into radialMaxSplits parts; these parts - // are combined as much as possible while respecting the - // radialColorDelta parameter. - - // setup for the start circle - ia = 0; - sa = sMin; - ta = t0 + sa * (t1 - t0); - xa = x0 + sa * (x1 - x0); - ya = y0 + sa * (y1 - y0); - ra = r0 + sa * (r1 - r0); - if (ta < t0) { - shading->getColor(t0, &colorA); - } else if (ta > t1) { - shading->getColor(t1, &colorA); - } else { - shading->getColor(ta, &colorA); - } - - while (ia < radialMaxSplits) { - - // go as far along the t axis (toward t1) as we can, such that the - // color difference is within the tolerance (radialColorDelta) -- - // this uses bisection (between the current value, t, and t1), - // limited to radialMaxSplits points along the t axis; require at - // least one split to avoid problems when the innermost and - // outermost colors are the same - ib = radialMaxSplits; - sb = sMin + ((double)ib / (double)radialMaxSplits) * (sMax - sMin); - tb = t0 + sb * (t1 - t0); - if (tb < t0) { - shading->getColor(t0, &colorB); - } else if (tb > t1) { - shading->getColor(t1, &colorB); - } else { - shading->getColor(tb, &colorB); - } - while (ib - ia > 1) { - for (k = 0; k < nComps; ++k) { - if (fabs(colorB.c[k] - colorA.c[k]) > radialColorDelta) { - break; - } - } - if (k == nComps && ib < radialMaxSplits) { - break; - } - ib = (ia + ib) / 2; - sb = sMin + ((double)ib / (double)radialMaxSplits) * (sMax - sMin); - tb = t0 + sb * (t1 - t0); - if (tb < t0) { - shading->getColor(t0, &colorB); - } else if (tb > t1) { - shading->getColor(t1, &colorB); - } else { - shading->getColor(tb, &colorB); - } - } - - // compute center and radius of the circle - xb = x0 + sb * (x1 - x0); - yb = y0 + sb * (y1 - y0); - rb = r0 + sb * (r1 - r0); - - // use the average of the colors at the two circles - for (k = 0; k < nComps; ++k) { - colorA.c[k] = 0.5 * (colorA.c[k] + colorB.c[k]); - } - state->setFillColor(&colorA); - out->updateFillColor(state); - - // construct path for first circle - state->moveTo(xa + ra, ya); - for (k = 1; k < n; ++k) { - angle = ((double)k / (double)n) * 2 * M_PI; - state->lineTo(xa + ra * cos(angle), ya + ra * sin(angle)); - } - state->closePath(); - - // construct and append path for second circle - state->moveTo(xb + rb, yb); - for (k = 1; k < n; ++k) { - angle = ((double)k / (double)n) * 2 * M_PI; - state->lineTo(xb + rb * cos(angle), yb + rb * sin(angle)); - } - state->closePath(); - - // fill the ring - out->eoFill(state); - state->clearPath(); - - // step to the next value of t - ia = ib; - sa = sb; - ta = tb; - xa = xb; - ya = yb; - ra = rb; - colorA = colorB; - } -} - -void Gfx::doEndPath() { - if (state->isCurPt() && clip != clipNone) { - state->clip(); - if (clip == clipNormal) { - out->clip(state); - } else { - out->eoClip(state); - } - } - clip = clipNone; - state->clearPath(); -} - -//------------------------------------------------------------------------ -// path clipping operators -//------------------------------------------------------------------------ - -void Gfx::opClip(Object args[], int numArgs) { - clip = clipNormal; -} - -void Gfx::opEOClip(Object args[], int numArgs) { - clip = clipEO; -} - -//------------------------------------------------------------------------ -// text object operators -//------------------------------------------------------------------------ - -void Gfx::opBeginText(Object args[], int numArgs) { - state->setTextMat(1, 0, 0, 1, 0, 0); - state->textMoveTo(0, 0); - out->updateTextMat(state); - out->updateTextPos(state); - fontChanged = gTrue; -} - -void Gfx::opEndText(Object args[], int numArgs) { - out->endTextObject(state); -} - -//------------------------------------------------------------------------ -// text state operators -//------------------------------------------------------------------------ - -void Gfx::opSetCharSpacing(Object args[], int numArgs) { - state->setCharSpace(args[0].getNum()); - out->updateCharSpace(state); -} - -void Gfx::opSetFont(Object args[], int numArgs) { - GfxFont *font; - - if (!(font = res->lookupFont(args[0].getName()))) { - return; - } - if (printCommands) { - printf(" font: tag=%s name='%s' %g\n", - font->getTag()->getCString(), - font->getName() ? font->getName()->getCString() : "???", - args[1].getNum()); - fflush(stdout); - } - state->setFont(font, args[1].getNum()); - fontChanged = gTrue; -} - -void Gfx::opSetTextLeading(Object args[], int numArgs) { - state->setLeading(args[0].getNum()); -} - -void Gfx::opSetTextRender(Object args[], int numArgs) { - state->setRender(args[0].getInt()); - out->updateRender(state); -} - -void Gfx::opSetTextRise(Object args[], int numArgs) { - state->setRise(args[0].getNum()); - out->updateRise(state); -} - -void Gfx::opSetWordSpacing(Object args[], int numArgs) { - state->setWordSpace(args[0].getNum()); - out->updateWordSpace(state); -} - -void Gfx::opSetHorizScaling(Object args[], int numArgs) { - state->setHorizScaling(args[0].getNum()); - out->updateHorizScaling(state); - fontChanged = gTrue; -} - -//------------------------------------------------------------------------ -// text positioning operators -//------------------------------------------------------------------------ - -void Gfx::opTextMove(Object args[], int numArgs) { - double tx, ty; - - tx = state->getLineX() + args[0].getNum(); - ty = state->getLineY() + args[1].getNum(); - state->textMoveTo(tx, ty); - out->updateTextPos(state); -} - -void Gfx::opTextMoveSet(Object args[], int numArgs) { - double tx, ty; - - tx = state->getLineX() + args[0].getNum(); - ty = args[1].getNum(); - state->setLeading(-ty); - ty += state->getLineY(); - state->textMoveTo(tx, ty); - out->updateTextPos(state); -} - -void Gfx::opSetTextMatrix(Object args[], int numArgs) { - state->setTextMat(args[0].getNum(), args[1].getNum(), - args[2].getNum(), args[3].getNum(), - args[4].getNum(), args[5].getNum()); - state->textMoveTo(0, 0); - out->updateTextMat(state); - out->updateTextPos(state); - fontChanged = gTrue; -} - -void Gfx::opTextNextLine(Object args[], int numArgs) { - double tx, ty; - - tx = state->getLineX(); - ty = state->getLineY() - state->getLeading(); - state->textMoveTo(tx, ty); - out->updateTextPos(state); -} - -//------------------------------------------------------------------------ -// text string operators -//------------------------------------------------------------------------ - -void Gfx::opShowText(Object args[], int numArgs) { - if (!state->getFont()) { - error(getPos(), "No font in show"); - return; - } - doShowText(args[0].getString()); -} - -void Gfx::opMoveShowText(Object args[], int numArgs) { - double tx, ty; - - if (!state->getFont()) { - error(getPos(), "No font in move/show"); - return; - } - tx = state->getLineX(); - ty = state->getLineY() - state->getLeading(); - state->textMoveTo(tx, ty); - out->updateTextPos(state); - doShowText(args[0].getString()); -} - -void Gfx::opMoveSetShowText(Object args[], int numArgs) { - double tx, ty; - - if (!state->getFont()) { - error(getPos(), "No font in move/set/show"); - return; - } - state->setWordSpace(args[0].getNum()); - state->setCharSpace(args[1].getNum()); - tx = state->getLineX(); - ty = state->getLineY() - state->getLeading(); - state->textMoveTo(tx, ty); - out->updateWordSpace(state); - out->updateCharSpace(state); - out->updateTextPos(state); - doShowText(args[2].getString()); -} - -void Gfx::opShowSpaceText(Object args[], int numArgs) { - Array *a; - Object obj; - int wMode; - int i; - - if (!state->getFont()) { - error(getPos(), "No font in show/space"); - return; - } - wMode = state->getFont()->getWMode(); - a = args[0].getArray(); - for (i = 0; i < a->getLength(); ++i) { - a->get(i, &obj); - if (obj.isNum()) { - if (wMode) { - state->textShift(0, -obj.getNum() * 0.001 * state->getFontSize()); - } else { - state->textShift(-obj.getNum() * 0.001 * state->getFontSize(), 0); - } - out->updateTextShift(state, obj.getNum()); - } else if (obj.isString()) { - doShowText(obj.getString()); - } else { - error(getPos(), "Element of show/space array must be number or string"); - } - obj.free(); - } -} - -void Gfx::doShowText(GString *s) { - GfxFont *font; - int wMode; - double riseX, riseY; - CharCode code; - Unicode u[8]; - double x, y, dx, dy, dx2, dy2, curX, curY, tdx, tdy, lineX, lineY; - double originX, originY, tOriginX, tOriginY; - double oldCTM[6], newCTM[6]; - double *mat; - Object charProc; - Dict *resDict; - Parser *oldParser; - char *p; - int len, n, uLen, nChars, nSpaces, i; - - if (fontChanged) { - out->updateFont(state); - fontChanged = gFalse; - } - font = state->getFont(); - wMode = font->getWMode(); - - if (out->useDrawChar()) { - out->beginString(state, s); - } - - // handle a Type 3 char - if (font->getType() == fontType3 && out->interpretType3Chars()) { - mat = state->getCTM(); - for (i = 0; i < 6; ++i) { - oldCTM[i] = mat[i]; - } - mat = state->getTextMat(); - newCTM[0] = mat[0] * oldCTM[0] + mat[1] * oldCTM[2]; - newCTM[1] = mat[0] * oldCTM[1] + mat[1] * oldCTM[3]; - newCTM[2] = mat[2] * oldCTM[0] + mat[3] * oldCTM[2]; - newCTM[3] = mat[2] * oldCTM[1] + mat[3] * oldCTM[3]; - mat = font->getFontMatrix(); - newCTM[0] = mat[0] * newCTM[0] + mat[1] * newCTM[2]; - newCTM[1] = mat[0] * newCTM[1] + mat[1] * newCTM[3]; - newCTM[2] = mat[2] * newCTM[0] + mat[3] * newCTM[2]; - newCTM[3] = mat[2] * newCTM[1] + mat[3] * newCTM[3]; - newCTM[0] *= state->getFontSize(); - newCTM[1] *= state->getFontSize(); - newCTM[2] *= state->getFontSize(); - newCTM[3] *= state->getFontSize(); - newCTM[0] *= state->getHorizScaling(); - newCTM[2] *= state->getHorizScaling(); - state->textTransformDelta(0, state->getRise(), &riseX, &riseY); - curX = state->getCurX(); - curY = state->getCurY(); - lineX = state->getLineX(); - lineY = state->getLineY(); - oldParser = parser; - p = s->getCString(); - len = s->getLength(); - while (len > 0) { - n = font->getNextChar(p, len, &code, - u, (int)(sizeof(u) / sizeof(Unicode)), &uLen, - &dx, &dy, &originX, &originY); - dx = dx * state->getFontSize() + state->getCharSpace(); - if (n == 1 && *p == ' ') { - dx += state->getWordSpace(); - } - dx *= state->getHorizScaling(); - dy *= state->getFontSize(); - state->textTransformDelta(dx, dy, &tdx, &tdy); - state->transform(curX + riseX, curY + riseY, &x, &y); - saveState(); - state->setCTM(newCTM[0], newCTM[1], newCTM[2], newCTM[3], x, y); - //~ out->updateCTM(???) - if (!out->beginType3Char(state, curX + riseX, curY + riseY, tdx, tdy, - code, u, uLen)) { - ((Gfx8BitFont *)font)->getCharProc(code, &charProc); - if ((resDict = ((Gfx8BitFont *)font)->getResources())) { - pushResources(resDict); - } - if (charProc.isStream()) { - display(&charProc, gFalse); - } else { - error(getPos(), "Missing or bad Type3 CharProc entry"); - } - out->endType3Char(state); - if (resDict) { - popResources(); - } - charProc.free(); - } - restoreState(); - // GfxState::restore() does *not* restore the current position, - // so we deal with it here using (curX, curY) and (lineX, lineY) - curX += tdx; - curY += tdy; - state->moveTo(curX, curY); - state->textSetPos(lineX, lineY); - p += n; - len -= n; - } - parser = oldParser; - - } else if (out->useDrawChar()) { - state->textTransformDelta(0, state->getRise(), &riseX, &riseY); - p = s->getCString(); - len = s->getLength(); - while (len > 0) { - n = font->getNextChar(p, len, &code, - u, (int)(sizeof(u) / sizeof(Unicode)), &uLen, - &dx, &dy, &originX, &originY); - if (wMode) { - dx *= state->getFontSize(); - dy = dy * state->getFontSize() + state->getCharSpace(); - if (n == 1 && *p == ' ') { - dy += state->getWordSpace(); - } - } else { - dx = dx * state->getFontSize() + state->getCharSpace(); - if (n == 1 && *p == ' ') { - dx += state->getWordSpace(); - } - dx *= state->getHorizScaling(); - dy *= state->getFontSize(); - } - state->textTransformDelta(dx, dy, &tdx, &tdy); - originX *= state->getFontSize(); - originY *= state->getFontSize(); - state->textTransformDelta(originX, originY, &tOriginX, &tOriginY); - out->drawChar(state, state->getCurX() + riseX, state->getCurY() + riseY, - tdx, tdy, tOriginX, tOriginY, code, u, uLen); - state->shift(tdx, tdy); - p += n; - len -= n; - } - - } else { - dx = dy = 0; - p = s->getCString(); - len = s->getLength(); - nChars = nSpaces = 0; - while (len > 0) { - n = font->getNextChar(p, len, &code, - u, (int)(sizeof(u) / sizeof(Unicode)), &uLen, - &dx2, &dy2, &originX, &originY); - dx += dx2; - dy += dy2; - if (n == 1 && *p == ' ') { - ++nSpaces; - } - ++nChars; - p += n; - len -= n; - } - if (wMode) { - dx *= state->getFontSize(); - dy = dy * state->getFontSize() - + nChars * state->getCharSpace() - + nSpaces * state->getWordSpace(); - } else { - dx = dx * state->getFontSize() - + nChars * state->getCharSpace() - + nSpaces * state->getWordSpace(); - dx *= state->getHorizScaling(); - dy *= state->getFontSize(); - } - state->textTransformDelta(dx, dy, &tdx, &tdy); - out->drawString(state, s); - state->shift(tdx, tdy); - } - - if (out->useDrawChar()) { - out->endString(state); - } - - updateLevel += 10 * s->getLength(); -} - -//------------------------------------------------------------------------ -// XObject operators -//------------------------------------------------------------------------ - -void Gfx::opXObject(Object args[], int numArgs) { - Object obj1, obj2, obj3, refObj; -#if OPI_SUPPORT - Object opiDict; -#endif - - if (!res->lookupXObject(args[0].getName(), &obj1)) { - return; - } - if (!obj1.isStream()) { - error(getPos(), "XObject '%s' is wrong type", args[0].getName()); - obj1.free(); - return; - } -#if OPI_SUPPORT - obj1.streamGetDict()->lookup("OPI", &opiDict); - if (opiDict.isDict()) { - out->opiBegin(state, opiDict.getDict()); - } -#endif - obj1.streamGetDict()->lookup("Subtype", &obj2); - if (obj2.isName("Image")) { - res->lookupXObjectNF(args[0].getName(), &refObj); - doImage(&refObj, obj1.getStream(), gFalse); - refObj.free(); - } else if (obj2.isName("Form")) { - doForm(&obj1); - } else if (obj2.isName("PS")) { - obj1.streamGetDict()->lookup("Level1", &obj3); - out->psXObject(obj1.getStream(), - obj3.isStream() ? obj3.getStream() : (Stream *)NULL); - } else if (obj2.isName()) { - error(getPos(), "Unknown XObject subtype '%s'", obj2.getName()); - } else { - error(getPos(), "XObject subtype is missing or wrong type"); - } - obj2.free(); -#if OPI_SUPPORT - if (opiDict.isDict()) { - out->opiEnd(state, opiDict.getDict()); - } - opiDict.free(); -#endif - obj1.free(); -} - -void Gfx::doImage(Object *ref, Stream *str, GBool inlineImg) { - Dict *dict; - int width, height; - int bits; - GBool mask; - GBool invert; - GfxColorSpace *colorSpace; - GfxImageColorMap *colorMap; - Object maskObj; - GBool haveMask; - int maskColors[2*gfxColorMaxComps]; - Object obj1, obj2; - int i; - - // get stream dict - dict = str->getDict(); - - // get size - dict->lookup("Width", &obj1); - if (obj1.isNull()) { - obj1.free(); - dict->lookup("W", &obj1); - } - if (!obj1.isInt()) - goto err2; - width = obj1.getInt(); - obj1.free(); - dict->lookup("Height", &obj1); - if (obj1.isNull()) { - obj1.free(); - dict->lookup("H", &obj1); - } - if (!obj1.isInt()) - goto err2; - height = obj1.getInt(); - obj1.free(); - - // image or mask? - dict->lookup("ImageMask", &obj1); - if (obj1.isNull()) { - obj1.free(); - dict->lookup("IM", &obj1); - } - mask = gFalse; - if (obj1.isBool()) - mask = obj1.getBool(); - else if (!obj1.isNull()) - goto err2; - obj1.free(); - - // bit depth - dict->lookup("BitsPerComponent", &obj1); - if (obj1.isNull()) { - obj1.free(); - dict->lookup("BPC", &obj1); - } - if (obj1.isInt()) { - bits = obj1.getInt(); - } else if (mask) { - bits = 1; - } else { - goto err2; - } - obj1.free(); - - // display a mask - if (mask) { - - // check for inverted mask - if (bits != 1) - goto err1; - invert = gFalse; - dict->lookup("Decode", &obj1); - if (obj1.isNull()) { - obj1.free(); - dict->lookup("D", &obj1); - } - if (obj1.isArray()) { - obj1.arrayGet(0, &obj2); - if (obj2.isInt() && obj2.getInt() == 1) - invert = gTrue; - obj2.free(); - } else if (!obj1.isNull()) { - goto err2; - } - obj1.free(); - - // draw it - out->drawImageMask(state, ref, str, width, height, invert, inlineImg); - - } else { - - // get color space and color map - dict->lookup("ColorSpace", &obj1); - if (obj1.isNull()) { - obj1.free(); - dict->lookup("CS", &obj1); - } - if (obj1.isName()) { - res->lookupColorSpace(obj1.getName(), &obj2); - if (!obj2.isNull()) { - obj1.free(); - obj1 = obj2; - } else { - obj2.free(); - } - } - colorSpace = GfxColorSpace::parse(&obj1); - obj1.free(); - if (!colorSpace) { - goto err1; - } - dict->lookup("Decode", &obj1); - if (obj1.isNull()) { - obj1.free(); - dict->lookup("D", &obj1); - } - colorMap = new GfxImageColorMap(bits, &obj1, colorSpace); - obj1.free(); - if (!colorMap->isOk()) { - delete colorMap; - goto err1; - } - - // get the mask - haveMask = gFalse; - dict->lookup("Mask", &maskObj); - if (maskObj.isArray()) { - for (i = 0; - i < maskObj.arrayGetLength() && i < 2*gfxColorMaxComps; - ++i) { - maskObj.arrayGet(i, &obj1); - maskColors[i] = obj1.getInt(); - obj1.free(); - } - haveMask = gTrue; - } - - // draw it - out->drawImage(state, ref, str, width, height, colorMap, - haveMask ? maskColors : (int *)NULL, inlineImg); - delete colorMap; - - maskObj.free(); - } - - if ((i = width * height) > 1000) { - i = 1000; - } - updateLevel += i; - - return; - - err2: - obj1.free(); - err1: - error(getPos(), "Bad image parameters"); -} - -void Gfx::doForm(Object *str) { - Dict *dict; - Object matrixObj, bboxObj; - double m[6], bbox[6]; - Object resObj; - Dict *resDict; - Object obj1; - int i; - - // check for excessive recursion - if (formDepth > 20) { - return; - } - - // get stream dict - dict = str->streamGetDict(); - - // check form type - dict->lookup("FormType", &obj1); - if (!(obj1.isInt() && obj1.getInt() == 1)) { - error(getPos(), "Unknown form type"); - } - obj1.free(); - - // get bounding box - dict->lookup("BBox", &bboxObj); - if (!bboxObj.isArray()) { - matrixObj.free(); - bboxObj.free(); - error(getPos(), "Bad form bounding box"); - return; - } - for (i = 0; i < 4; ++i) { - bboxObj.arrayGet(i, &obj1); - bbox[i] = obj1.getNum(); - obj1.free(); - } - bboxObj.free(); - - // get matrix - dict->lookup("Matrix", &matrixObj); - if (matrixObj.isArray()) { - for (i = 0; i < 6; ++i) { - matrixObj.arrayGet(i, &obj1); - m[i] = obj1.getNum(); - obj1.free(); - } - } else { - m[0] = 1; m[1] = 0; - m[2] = 0; m[3] = 1; - m[4] = 0; m[5] = 0; - } - matrixObj.free(); - - // get resources - dict->lookup("Resources", &resObj); - resDict = resObj.isDict() ? resObj.getDict() : (Dict *)NULL; - - // draw it - ++formDepth; - doForm1(str, resDict, m, bbox); - --formDepth; - - resObj.free(); -} - -void Gfx::doAnnot(Object *str, double xMin, double yMin, - double xMax, double yMax) { - Dict *dict, *resDict; - Object matrixObj, bboxObj, resObj; - Object obj1; - double m[6], bbox[6], ictm[6]; - double *ctm; - double formX0, formY0, formX1, formY1; - double annotX0, annotY0, annotX1, annotY1; - double det, x, y, sx, sy; - int i; - - // get stream dict - dict = str->streamGetDict(); - - // get the form bounding box - dict->lookup("BBox", &bboxObj); - if (!bboxObj.isArray()) { - bboxObj.free(); - error(getPos(), "Bad form bounding box"); - return; - } - for (i = 0; i < 4; ++i) { - bboxObj.arrayGet(i, &obj1); - bbox[i] = obj1.getNum(); - obj1.free(); - } - bboxObj.free(); - - // get the form matrix - dict->lookup("Matrix", &matrixObj); - if (matrixObj.isArray()) { - for (i = 0; i < 6; ++i) { - matrixObj.arrayGet(i, &obj1); - m[i] = obj1.getNum(); - obj1.free(); - } - } else { - m[0] = 1; m[1] = 0; - m[2] = 0; m[3] = 1; - m[4] = 0; m[5] = 0; - } - matrixObj.free(); - - // transform the form bbox from form space to user space - formX0 = bbox[0] * m[0] + bbox[1] * m[2] + m[4]; - formY0 = bbox[0] * m[1] + bbox[1] * m[3] + m[5]; - formX1 = bbox[2] * m[0] + bbox[3] * m[2] + m[4]; - formY1 = bbox[2] * m[1] + bbox[3] * m[3] + m[5]; - - // transform the annotation bbox from default user space to user - // space: (bbox * baseMatrix) * iCTM - ctm = state->getCTM(); - det = 1 / (ctm[0] * ctm[3] - ctm[1] * ctm[2]); - ictm[0] = ctm[3] * det; - ictm[1] = -ctm[1] * det; - ictm[2] = -ctm[2] * det; - ictm[3] = ctm[0] * det; - ictm[4] = (ctm[2] * ctm[5] - ctm[3] * ctm[4]) * det; - ictm[5] = (ctm[1] * ctm[4] - ctm[0] * ctm[5]) * det; - x = baseMatrix[0] * xMin + baseMatrix[2] * yMin + baseMatrix[4]; - y = baseMatrix[1] * xMin + baseMatrix[3] * yMin + baseMatrix[5]; - annotX0 = ictm[0] * x + ictm[2] * y + ictm[4]; - annotY0 = ictm[1] * x + ictm[3] * y + ictm[5]; - x = baseMatrix[0] * xMax + baseMatrix[2] * yMax + baseMatrix[4]; - y = baseMatrix[1] * xMax + baseMatrix[3] * yMax + baseMatrix[5]; - annotX1 = ictm[0] * x + ictm[2] * y + ictm[4]; - annotY1 = ictm[1] * x + ictm[3] * y + ictm[5]; - - // swap min/max coords - if (formX0 > formX1) { - x = formX0; formX0 = formX1; formX1 = x; - } - if (formY0 > formY1) { - y = formY0; formY0 = formY1; formY1 = y; - } - if (annotX0 > annotX1) { - x = annotX0; annotX0 = annotX1; annotX1 = x; - } - if (annotY0 > annotY1) { - y = annotY0; annotY0 = annotY1; annotY1 = y; - } - - // scale the form to fit the annotation bbox - if (formX1 == formX0) { - // this shouldn't happen - sx = 1; - } else { - sx = (annotX1 - annotX0) / (formX1 - formX0); - } - if (formY1 == formY0) { - // this shouldn't happen - sy = 1; - } else { - sy = (annotY1 - annotY0) / (formY1 - formY0); - } - m[0] *= sx; - m[2] *= sx; - m[4] = (m[4] - formX0) * sx + annotX0; - m[1] *= sy; - m[3] *= sy; - m[5] = (m[5] - formY0) * sy + annotY0; - - // get resources - dict->lookup("Resources", &resObj); - resDict = resObj.isDict() ? resObj.getDict() : (Dict *)NULL; - - // draw it - doForm1(str, resDict, m, bbox); - - resObj.free(); - bboxObj.free(); -} - -void Gfx::doForm1(Object *str, Dict *resDict, double *matrix, double *bbox) { - Parser *oldParser; - double oldBaseMatrix[6]; - int i; - - // push new resources on stack - pushResources(resDict); - - // save current graphics state - saveState(); - - // kill any pre-existing path - state->clearPath(); - - // save current parser - oldParser = parser; - - // set form transformation matrix - state->concatCTM(matrix[0], matrix[1], matrix[2], - matrix[3], matrix[4], matrix[5]); - out->updateCTM(state, matrix[0], matrix[1], matrix[2], - matrix[3], matrix[4], matrix[5]); - - // set new base matrix - for (i = 0; i < 6; ++i) { - oldBaseMatrix[i] = baseMatrix[i]; - baseMatrix[i] = state->getCTM()[i]; - } - - // set form bounding box - state->moveTo(bbox[0], bbox[1]); - state->lineTo(bbox[2], bbox[1]); - state->lineTo(bbox[2], bbox[3]); - state->lineTo(bbox[0], bbox[3]); - state->closePath(); - state->clip(); - out->clip(state); - state->clearPath(); - - // draw the form - display(str, gFalse); - - // restore base matrix - for (i = 0; i < 6; ++i) { - baseMatrix[i] = oldBaseMatrix[i]; - } - - // restore parser - parser = oldParser; - - // restore graphics state - restoreState(); - - // pop resource stack - popResources(); - - return; -} - -//------------------------------------------------------------------------ -// in-line image operators -//------------------------------------------------------------------------ - -void Gfx::opBeginImage(Object args[], int numArgs) { - Stream *str; - int c1, c2; - - // build dict/stream - str = buildImageStream(); - - // display the image - if (str) { - doImage(NULL, str, gTrue); - - // skip 'EI' tag - c1 = str->getBaseStream()->getChar(); - c2 = str->getBaseStream()->getChar(); - while (!(c1 == 'E' && c2 == 'I') && c2 != EOF) { - c1 = c2; - c2 = str->getBaseStream()->getChar(); - } - delete str; - } -} - -Stream *Gfx::buildImageStream() { - Object dict; - Object obj; - char *key; - Stream *str; - - // build dictionary - dict.initDict(xref); - parser->getObj(&obj); - while (!obj.isCmd("ID") && !obj.isEOF()) { - if (!obj.isName()) { - error(getPos(), "Inline image dictionary key must be a name object"); - obj.free(); - } else { - key = copyString(obj.getName()); - obj.free(); - parser->getObj(&obj); - if (obj.isEOF() || obj.isError()) { - gfree(key); - break; - } - dict.dictAdd(key, &obj); - } - parser->getObj(&obj); - } - if (obj.isEOF()) { - error(getPos(), "End of file in inline image"); - obj.free(); - dict.free(); - return NULL; - } - obj.free(); - - // make stream - str = new EmbedStream(parser->getStream(), &dict, gFalse, 0); - str = str->addFilters(&dict); - - return str; -} - -void Gfx::opImageData(Object args[], int numArgs) { - error(getPos(), "Internal: got 'ID' operator"); -} - -void Gfx::opEndImage(Object args[], int numArgs) { - error(getPos(), "Internal: got 'EI' operator"); -} - -//------------------------------------------------------------------------ -// type 3 font operators -//------------------------------------------------------------------------ - -void Gfx::opSetCharWidth(Object args[], int numArgs) { - out->type3D0(state, args[0].getNum(), args[1].getNum()); -} - -void Gfx::opSetCacheDevice(Object args[], int numArgs) { - out->type3D1(state, args[0].getNum(), args[1].getNum(), - args[2].getNum(), args[3].getNum(), - args[4].getNum(), args[5].getNum()); -} - -//------------------------------------------------------------------------ -// compatibility operators -//------------------------------------------------------------------------ - -void Gfx::opBeginIgnoreUndef(Object args[], int numArgs) { - ++ignoreUndef; -} - -void Gfx::opEndIgnoreUndef(Object args[], int numArgs) { - if (ignoreUndef > 0) - --ignoreUndef; -} - -//------------------------------------------------------------------------ -// marked content operators -//------------------------------------------------------------------------ - -void Gfx::opBeginMarkedContent(Object args[], int numArgs) { - if (printCommands) { - printf(" marked content: %s ", args[0].getName()); - if (numArgs == 2) - args[2].print(stdout); - printf("\n"); - fflush(stdout); - } -} - -void Gfx::opEndMarkedContent(Object args[], int numArgs) { -} - -void Gfx::opMarkPoint(Object args[], int numArgs) { - if (printCommands) { - printf(" mark point: %s ", args[0].getName()); - if (numArgs == 2) - args[2].print(stdout); - printf("\n"); - fflush(stdout); - } -} - -//------------------------------------------------------------------------ -// misc -//------------------------------------------------------------------------ - -void Gfx::saveState() { - out->saveState(state); - state = state->save(); -} - -void Gfx::restoreState() { - state = state->restore(); - out->restoreState(state); -} - -void Gfx::pushResources(Dict *resDict) { - res = new GfxResources(xref, resDict, res); -} - -void Gfx::popResources() { - GfxResources *resPtr; - - resPtr = res->getNext(); - delete res; - res = resPtr; -} diff --git a/Build/source/libs/xpdf/xpdf/Gfx.h b/Build/source/libs/xpdf/xpdf/Gfx.h deleted file mode 100644 index 2e40a57374a..00000000000 --- a/Build/source/libs/xpdf/xpdf/Gfx.h +++ /dev/null @@ -1,280 +0,0 @@ -//======================================================================== -// -// Gfx.h -// -// Copyright 1996-2003 Glyph & Cog, LLC -// -//======================================================================== - -#ifndef GFX_H -#define GFX_H - -#include <aconf.h> - -#ifdef USE_GCC_PRAGMAS -#pragma interface -#endif - -#include "gtypes.h" - -class GString; -class XRef; -class Array; -class Stream; -class Parser; -class Dict; -class OutputDev; -class GfxFontDict; -class GfxFont; -class GfxPattern; -class GfxTilingPattern; -class GfxShadingPattern; -class GfxShading; -class GfxFunctionShading; -class GfxAxialShading; -class GfxRadialShading; -class GfxState; -struct GfxColor; -class Gfx; -class PDFRectangle; - -//------------------------------------------------------------------------ -// Gfx -//------------------------------------------------------------------------ - -enum GfxClipType { - clipNone, - clipNormal, - clipEO -}; - -enum TchkType { - tchkBool, // boolean - tchkInt, // integer - tchkNum, // number (integer or real) - tchkString, // string - tchkName, // name - tchkArray, // array - tchkProps, // properties (dictionary or name) - tchkSCN, // scn/SCN args (number of name) - tchkNone // used to avoid empty initializer lists -}; - -#define maxArgs 8 - -struct Operator { - char name[4]; - int numArgs; - TchkType tchk[maxArgs]; - void (Gfx::*func)(Object args[], int numArgs); -}; - -class GfxResources { -public: - - GfxResources(XRef *xref, Dict *resDict, GfxResources *nextA); - ~GfxResources(); - - GfxFont *lookupFont(char *name); - GBool lookupXObject(char *name, Object *obj); - GBool lookupXObjectNF(char *name, Object *obj); - void lookupColorSpace(char *name, Object *obj); - GfxPattern *lookupPattern(char *name); - GfxShading *lookupShading(char *name); - GBool lookupGState(char *name, Object *obj); - - GfxResources *getNext() { return next; } - -private: - - GfxFontDict *fonts; - Object xObjDict; - Object colorSpaceDict; - Object patternDict; - Object shadingDict; - Object gStateDict; - GfxResources *next; -}; - -class Gfx { -public: - - // Constructor for regular output. - Gfx(XRef *xrefA, OutputDev *outA, int pageNum, Dict *resDict, - double hDPI, double vDPI, PDFRectangle *box, GBool crop, - PDFRectangle *cropBox, int rotate, - GBool (*abortCheckCbkA)(void *data) = NULL, - void *abortCheckCbkDataA = NULL); - - // Constructor for a sub-page object. - Gfx(XRef *xrefA, OutputDev *outA, Dict *resDict, - PDFRectangle *box, GBool crop, PDFRectangle *cropBox, - GBool (*abortCheckCbkA)(void *data) = NULL, - void *abortCheckCbkDataA = NULL); - - ~Gfx(); - - // Interpret a stream or array of streams. - void display(Object *obj, GBool topLevel = gTrue); - - // Display an annotation, given its appearance (a Form XObject) and - // bounding box (in default user space). - void doAnnot(Object *str, double xMin, double yMin, - double xMax, double yMax); - - // Save graphics state. - void saveState(); - - // Restore graphics state. - void restoreState(); - -private: - - XRef *xref; // the xref table for this PDF file - OutputDev *out; // output device - GBool subPage; // is this a sub-page object? - GBool printCommands; // print the drawing commands (for debugging) - GfxResources *res; // resource stack - int updateLevel; - - GfxState *state; // current graphics state - GBool fontChanged; // set if font or text matrix has changed - GfxClipType clip; // do a clip? - int ignoreUndef; // current BX/EX nesting level - double baseMatrix[6]; // default matrix for most recent - // page/form/pattern - int formDepth; - - Parser *parser; // parser for page content stream(s) - - GBool // callback to check for an abort - (*abortCheckCbk)(void *data); - void *abortCheckCbkData; - - static Operator opTab[]; // table of operators - - void go(GBool topLevel); - void execOp(Object *cmd, Object args[], int numArgs); - Operator *findOp(char *name); - GBool checkArg(Object *arg, TchkType type); - int getPos(); - - // graphics state operators - void opSave(Object args[], int numArgs); - void opRestore(Object args[], int numArgs); - void opConcat(Object args[], int numArgs); - void opSetDash(Object args[], int numArgs); - void opSetFlat(Object args[], int numArgs); - void opSetLineJoin(Object args[], int numArgs); - void opSetLineCap(Object args[], int numArgs); - void opSetMiterLimit(Object args[], int numArgs); - void opSetLineWidth(Object args[], int numArgs); - void opSetExtGState(Object args[], int numArgs); - void opSetRenderingIntent(Object args[], int numArgs); - - // color operators - void opSetFillGray(Object args[], int numArgs); - void opSetStrokeGray(Object args[], int numArgs); - void opSetFillCMYKColor(Object args[], int numArgs); - void opSetStrokeCMYKColor(Object args[], int numArgs); - void opSetFillRGBColor(Object args[], int numArgs); - void opSetStrokeRGBColor(Object args[], int numArgs); - void opSetFillColorSpace(Object args[], int numArgs); - void opSetStrokeColorSpace(Object args[], int numArgs); - void opSetFillColor(Object args[], int numArgs); - void opSetStrokeColor(Object args[], int numArgs); - void opSetFillColorN(Object args[], int numArgs); - void opSetStrokeColorN(Object args[], int numArgs); - - // path segment operators - void opMoveTo(Object args[], int numArgs); - void opLineTo(Object args[], int numArgs); - void opCurveTo(Object args[], int numArgs); - void opCurveTo1(Object args[], int numArgs); - void opCurveTo2(Object args[], int numArgs); - void opRectangle(Object args[], int numArgs); - void opClosePath(Object args[], int numArgs); - - // path painting operators - void opEndPath(Object args[], int numArgs); - void opStroke(Object args[], int numArgs); - void opCloseStroke(Object args[], int numArgs); - void opFill(Object args[], int numArgs); - void opEOFill(Object args[], int numArgs); - void opFillStroke(Object args[], int numArgs); - void opCloseFillStroke(Object args[], int numArgs); - void opEOFillStroke(Object args[], int numArgs); - void opCloseEOFillStroke(Object args[], int numArgs); - void doPatternFill(GBool eoFill); - void doTilingPatternFill(GfxTilingPattern *tPat, GBool eoFill); - void doShadingPatternFill(GfxShadingPattern *sPat, GBool eoFill); - void opShFill(Object args[], int numArgs); - void doFunctionShFill(GfxFunctionShading *shading); - void doFunctionShFill1(GfxFunctionShading *shading, - double x0, double y0, - double x1, double y1, - GfxColor *colors, int depth); - void doAxialShFill(GfxAxialShading *shading); - void doRadialShFill(GfxRadialShading *shading); - void doEndPath(); - - // path clipping operators - void opClip(Object args[], int numArgs); - void opEOClip(Object args[], int numArgs); - - // text object operators - void opBeginText(Object args[], int numArgs); - void opEndText(Object args[], int numArgs); - - // text state operators - void opSetCharSpacing(Object args[], int numArgs); - void opSetFont(Object args[], int numArgs); - void opSetTextLeading(Object args[], int numArgs); - void opSetTextRender(Object args[], int numArgs); - void opSetTextRise(Object args[], int numArgs); - void opSetWordSpacing(Object args[], int numArgs); - void opSetHorizScaling(Object args[], int numArgs); - - // text positioning operators - void opTextMove(Object args[], int numArgs); - void opTextMoveSet(Object args[], int numArgs); - void opSetTextMatrix(Object args[], int numArgs); - void opTextNextLine(Object args[], int numArgs); - - // text string operators - void opShowText(Object args[], int numArgs); - void opMoveShowText(Object args[], int numArgs); - void opMoveSetShowText(Object args[], int numArgs); - void opShowSpaceText(Object args[], int numArgs); - void doShowText(GString *s); - - // XObject operators - void opXObject(Object args[], int numArgs); - void doImage(Object *ref, Stream *str, GBool inlineImg); - void doForm(Object *str); - void doForm1(Object *str, Dict *resDict, double *matrix, double *bbox); - - // in-line image operators - void opBeginImage(Object args[], int numArgs); - Stream *buildImageStream(); - void opImageData(Object args[], int numArgs); - void opEndImage(Object args[], int numArgs); - - // type 3 font operators - void opSetCharWidth(Object args[], int numArgs); - void opSetCacheDevice(Object args[], int numArgs); - - // compatibility operators - void opBeginIgnoreUndef(Object args[], int numArgs); - void opEndIgnoreUndef(Object args[], int numArgs); - - // marked content operators - void opBeginMarkedContent(Object args[], int numArgs); - void opEndMarkedContent(Object args[], int numArgs); - void opMarkPoint(Object args[], int numArgs); - - void pushResources(Dict *resDict); - void popResources(); -}; - -#endif diff --git a/Build/source/libs/xpdf/xpdf/JBIG2Stream.cc b/Build/source/libs/xpdf/xpdf/JBIG2Stream.cc index a90db80cbe6..5e263079d3a 100644 --- a/Build/source/libs/xpdf/xpdf/JBIG2Stream.cc +++ b/Build/source/libs/xpdf/xpdf/JBIG2Stream.cc @@ -13,6 +13,7 @@ #endif #include <stdlib.h> +#include <limits.h> #include "GList.h" #include "Error.h" #include "JArithmeticDecoder.h" @@ -681,6 +682,10 @@ JBIG2Bitmap::JBIG2Bitmap(Guint segNumA, int wA, int hA): w = wA; h = hA; line = (wA + 7) >> 3; + if (w <= 0 || h <= 0 || line <= 0 || h >= (INT_MAX - 1) / line) { + data = NULL; + return; + } // need to allocate one extra guard byte for use in combine() data = (Guchar *)gmalloc(h * line + 1); data[h * line] = 0; @@ -692,6 +697,10 @@ JBIG2Bitmap::JBIG2Bitmap(Guint segNumA, JBIG2Bitmap *bitmap): w = bitmap->w; h = bitmap->h; line = bitmap->line; + if (w <= 0 || h <= 0 || line <= 0 || h >= (INT_MAX - 1) / line) { + data = NULL; + return; + } // need to allocate one extra guard byte for use in combine() data = (Guchar *)gmalloc(h * line + 1); memcpy(data, bitmap->data, h * line); @@ -720,7 +729,7 @@ JBIG2Bitmap *JBIG2Bitmap::getSlice(Guint x, Guint y, Guint wA, Guint hA) { } void JBIG2Bitmap::expand(int newH, Guint pixel) { - if (newH <= h) { + if (newH <= h || line <= 0 || newH >= (INT_MAX - 1) / line) { return; } // need to allocate one extra guard byte for use in combine() @@ -2294,6 +2303,14 @@ void JBIG2Stream::readHalftoneRegionSeg(Guint segNum, GBool imm, !readUWord(&stepX) || !readUWord(&stepY)) { goto eofError; } + if (w == 0 || h == 0 || w >= INT_MAX / h) { + error(getPos(), "Bad bitmap size in JBIG2 halftone segment"); + return; + } + if (gridH == 0 || gridW >= INT_MAX / gridH) { + error(getPos(), "Bad grid size in JBIG2 halftone segment"); + return; + } // get pattern dictionary if (nRefSegs != 1) { diff --git a/Build/source/libs/xpdf/xpdf/JPXStream.cc b/Build/source/libs/xpdf/xpdf/JPXStream.cc index 6d09cd16518..d483cd4bf92 100644 --- a/Build/source/libs/xpdf/xpdf/JPXStream.cc +++ b/Build/source/libs/xpdf/xpdf/JPXStream.cc @@ -12,6 +12,7 @@ #pragma implementation #endif +#include <limits.h> #include "gmem.h" #include "Error.h" #include "JArithmeticDecoder.h" @@ -235,7 +236,7 @@ JPXStream::~JPXStream() { for (pre = 0; pre < 1; ++pre) { precinct = &resLevel->precincts[pre]; if (precinct->subbands) { - for (sb = 0; sb < (r == 0 ? 1 : 3); ++sb) { + for (sb = 0; sb < (Guint)(r == 0 ? 1 : 3); ++sb) { subband = &precinct->subbands[sb]; gfree(subband->inclusion); gfree(subband->zeroBitPlane); @@ -783,7 +784,7 @@ GBool JPXStream::readCodestream(Guint len) { int segType; GBool haveSIZ, haveCOD, haveQCD, haveSOT; Guint precinctSize, style; - Guint segLen, capabilities, comp, i, j, r; + Guint segLen, capabilities, nTiles, comp, i, j, r; //----- main header haveSIZ = haveCOD = haveQCD = haveSOT = gFalse; @@ -818,8 +819,14 @@ GBool JPXStream::readCodestream(Guint len) { / img.xTileSize; img.nYTiles = (img.ySize - img.yTileOffset + img.yTileSize - 1) / img.yTileSize; - img.tiles = (JPXTile *)gmallocn(img.nXTiles * img.nYTiles, - sizeof(JPXTile)); + nTiles = img.nXTiles * img.nYTiles; + // check for overflow before allocating memory + if (img.nXTiles <= 0 || img.nYTiles <= 0 || + img.nXTiles >= INT_MAX / img.nYTiles) { + error(getPos(), "Bad tile count in JPX SIZ marker segment"); + return gFalse; + } + img.tiles = (JPXTile *)gmallocn(nTiles, sizeof(JPXTile)); for (i = 0; i < img.nXTiles * img.nYTiles; ++i) { img.tiles[i].tileComps = (JPXTileComp *)gmallocn(img.nComps, sizeof(JPXTileComp)); @@ -1827,7 +1834,7 @@ GBool JPXStream::readTilePartData(Guint tileIdx, } if (!bits) { // packet is empty -- clear all code-block inclusion flags - for (sb = 0; sb < (tile->res == 0 ? 1 : 3); ++sb) { + for (sb = 0; sb < (Guint)(tile->res == 0 ? 1 : 3); ++sb) { subband = &precinct->subbands[sb]; for (cbY = 0; cbY < subband->nYCBs; ++cbY) { for (cbX = 0; cbX < subband->nXCBs; ++cbX) { @@ -1838,7 +1845,7 @@ GBool JPXStream::readTilePartData(Guint tileIdx, } } else { - for (sb = 0; sb < (tile->res == 0 ? 1 : 3); ++sb) { + for (sb = 0; sb < (Guint)(tile->res == 0 ? 1 : 3); ++sb) { subband = &precinct->subbands[sb]; for (cbY = 0; cbY < subband->nYCBs; ++cbY) { for (cbX = 0; cbX < subband->nXCBs; ++cbX) { @@ -1983,7 +1990,7 @@ GBool JPXStream::readTilePartData(Guint tileIdx, //----- packet data - for (sb = 0; sb < (tile->res == 0 ? 1 : 3); ++sb) { + for (sb = 0; sb < (Guint)(tile->res == 0 ? 1 : 3); ++sb) { subband = &precinct->subbands[sb]; for (cbY = 0; cbY < subband->nYCBs; ++cbY) { for (cbX = 0; cbX < subband->nXCBs; ++cbX) { diff --git a/Build/source/libs/xpdf/xpdf/SecurityHandler.cc b/Build/source/libs/xpdf/xpdf/SecurityHandler.cc index 8825ce85e94..40e9f59fb15 100644 --- a/Build/source/libs/xpdf/xpdf/SecurityHandler.cc +++ b/Build/source/libs/xpdf/xpdf/SecurityHandler.cc @@ -34,7 +34,9 @@ SecurityHandler *SecurityHandler::make(PDFDoc *docA, Object *encryptDictA) { Object filterObj; SecurityHandler *secHdlr; +#ifdef ENABLE_PLUGINS XpdfSecurityHandler *xsh; +#endif encryptDictA->dictLookup("Filter", &filterObj); if (filterObj.isName("Standard")) { diff --git a/Build/source/libs/xpdf/xpdf/Stream.cc b/Build/source/libs/xpdf/xpdf/Stream.cc index fd5de2de852..5fa7791c436 100644 --- a/Build/source/libs/xpdf/xpdf/Stream.cc +++ b/Build/source/libs/xpdf/xpdf/Stream.cc @@ -15,6 +15,7 @@ #include <stdio.h> #include <stdlib.h> #include <stddef.h> +#include <limits.h> #ifndef WIN32 #include <unistd.h> #endif @@ -401,18 +402,34 @@ void ImageStream::skipLine() { StreamPredictor::StreamPredictor(Stream *strA, int predictorA, int widthA, int nCompsA, int nBitsA) { + int totalBits; + str = strA; predictor = predictorA; width = widthA; nComps = nCompsA; nBits = nBitsA; + predLine = NULL; + ok = gFalse; nVals = width * nComps; + totalBits = nVals * nBits; + if (width <= 0 || nComps <= 0 || nBits <= 0 || + nComps >= INT_MAX / nBits || + width >= INT_MAX / nComps / nBits || + nVals * nBits + 7 < 0) { + return; + } pixBytes = (nComps * nBits + 7) >> 3; - rowBytes = ((nVals * nBits + 7) >> 3) + pixBytes; + rowBytes = ((totalBits + 7) >> 3) + pixBytes; + if (rowBytes < 0) { + return; + } predLine = (Guchar *)gmalloc(rowBytes); memset(predLine, 0, rowBytes); predIdx = rowBytes; + + ok = gTrue; } StreamPredictor::~StreamPredictor() { @@ -1004,6 +1021,10 @@ LZWStream::LZWStream(Stream *strA, int predictor, int columns, int colors, FilterStream(strA) { if (predictor != 1) { pred = new StreamPredictor(this, predictor, columns, colors, bits); + if (!pred->isOk()) { + delete pred; + pred = NULL; + } } else { pred = NULL; } @@ -1259,6 +1280,9 @@ CCITTFaxStream::CCITTFaxStream(Stream *strA, int encodingA, GBool endOfLineA, if (columns < 1) { columns = 1; } + if (columns + 4 <= 0) { + columns = INT_MAX - 4; + } rows = rowsA; endOfBlock = endOfBlockA; black = blackA; @@ -2899,6 +2923,14 @@ GBool DCTStream::readBaselineSOF() { height = read16(); width = read16(); numComps = str->getChar(); + if (numComps <= 0 || numComps > 4) { + error(getPos(), "Bad number of components in DCT stream", prec); + return gFalse; + } + if (numComps <= 0 || numComps > 4) { + error(getPos(), "Bad number of components in DCT stream", prec); + return gFalse; + } if (prec != 8) { error(getPos(), "Bad DCT precision %d", prec); return gFalse; @@ -2925,6 +2957,16 @@ GBool DCTStream::readProgressiveSOF() { height = read16(); width = read16(); numComps = str->getChar(); + if (numComps <= 0 || numComps > 4) { + error(getPos(), "Bad number of components in DCT stream"); + numComps = 0; + return gFalse; + } + if (numComps <= 0 || numComps > 4) { + error(getPos(), "Bad number of components in DCT stream"); + numComps = 0; + return gFalse; + } if (prec != 8) { error(getPos(), "Bad DCT precision %d", prec); return gFalse; @@ -2947,6 +2989,11 @@ GBool DCTStream::readScanInfo() { length = read16() - 2; scanInfo.numComps = str->getChar(); + if (scanInfo.numComps <= 0 || scanInfo.numComps > 4) { + error(getPos(), "Bad number of components in DCT stream"); + scanInfo.numComps = 0; + return gFalse; + } --length; if (length != 2 * scanInfo.numComps + 3) { error(getPos(), "Bad DCT scan info block"); @@ -3041,6 +3088,7 @@ GBool DCTStream::readHuffmanTables() { numACHuffTables = index+1; tbl = &acHuffTables[index]; } else { + index &= 0x0f; if (index >= numDCHuffTables) numDCHuffTables = index+1; tbl = &dcHuffTables[index]; @@ -3827,6 +3875,10 @@ FlateStream::FlateStream(Stream *strA, int predictor, int columns, FilterStream(strA) { if (predictor != 1) { pred = new StreamPredictor(this, predictor, columns, colors, bits); + if (!pred->isOk()) { + delete pred; + pred = NULL; + } } else { pred = NULL; } diff --git a/Build/source/libs/xpdf/xpdf/Stream.h b/Build/source/libs/xpdf/xpdf/Stream.h index 37aca46e376..e1e7bae4282 100644 --- a/Build/source/libs/xpdf/xpdf/Stream.h +++ b/Build/source/libs/xpdf/xpdf/Stream.h @@ -232,6 +232,8 @@ public: ~StreamPredictor(); + GBool isOk() { return ok; } + int lookChar(); int getChar(); @@ -249,6 +251,7 @@ private: int rowBytes; // bytes per line Guchar *predLine; // line buffer int predIdx; // current index in predLine + GBool ok; }; //------------------------------------------------------------------------ diff --git a/Build/source/libs/xpdf/xpdf/XRef.cc b/Build/source/libs/xpdf/xpdf/XRef.cc index b3715412fd5..c5a6aca8a6f 100644 --- a/Build/source/libs/xpdf/xpdf/XRef.cc +++ b/Build/source/libs/xpdf/xpdf/XRef.cc @@ -45,34 +45,9 @@ // ObjectStream //------------------------------------------------------------------------ -class ObjectStream { -public: - - // Create an object stream, using object number <objStrNum>, - // generation 0. - ObjectStream(XRef *xref, int objStrNumA); - - ~ObjectStream(); - - // Return the object number of this object stream. - int getObjStrNum() { return objStrNum; } - - // Get the <objIdx>th object from this stream, which should be - // object number <objNum>, generation 0. - Object *getObject(int objIdx, int objNum, Object *obj); - -private: - - int objStrNum; // object number of the object stream - int nObjects; // number of objects in the stream - Object *objs; // the objects (length = nObjects) - int *objNums; // the object numbers (length = nObjects) -}; - ObjectStream::ObjectStream(XRef *xref, int objStrNumA) { Stream *str; Parser *parser; - int *offsets; Object objStr, obj1, obj2; int first, i; @@ -80,6 +55,7 @@ ObjectStream::ObjectStream(XRef *xref, int objStrNumA) { nObjects = 0; objs = NULL; objNums = NULL; + offsets = NULL; if (!xref->fetch(objStrNum, 0, &objStr)->isStream()) { goto err1; @@ -100,6 +76,7 @@ ObjectStream::ObjectStream(XRef *xref, int objStrNumA) { goto err1; } first = obj1.getInt(); + firstOffset = objStr.getStream()->getBaseStream()->getStart() + first; obj1.free(); if (first < 0) { goto err1; @@ -121,7 +98,7 @@ ObjectStream::ObjectStream(XRef *xref, int objStrNumA) { obj1.free(); obj2.free(); delete parser; - gfree(offsets); +// gfree(offsets); goto err1; } objNums[i] = obj1.getInt(); @@ -131,7 +108,7 @@ ObjectStream::ObjectStream(XRef *xref, int objStrNumA) { if (objNums[i] < 0 || offsets[i] < 0 || (i > 0 && offsets[i] < offsets[i-1])) { delete parser; - gfree(offsets); +// gfree(offsets); goto err1; } } @@ -160,7 +137,7 @@ ObjectStream::ObjectStream(XRef *xref, int objStrNumA) { delete parser; } - gfree(offsets); +// gfree(offsets); err1: objStr.free(); @@ -177,6 +154,7 @@ ObjectStream::~ObjectStream() { delete[] objs; } gfree(objNums); + gfree(offsets); } Object *ObjectStream::getObject(int objIdx, int objNum, Object *obj) { diff --git a/Build/source/libs/xpdf/xpdf/XRef.h b/Build/source/libs/xpdf/xpdf/XRef.h index f9dede3e70c..91cf28403e2 100644 --- a/Build/source/libs/xpdf/xpdf/XRef.h +++ b/Build/source/libs/xpdf/xpdf/XRef.h @@ -21,7 +21,36 @@ class Dict; class Stream; class Parser; -class ObjectStream; + +class ObjectStream { +public: + + // Create an object stream, using object number <objStrNum>, + // generation 0. + ObjectStream(XRef *xref, int objStrNumA); + + ~ObjectStream(); + + // Return the object number of this object stream. + int getObjStrNum() { return objStrNum; } + + // Get the <objIdx>th object from this stream, which should be + // object number <objNum>, generation 0. + Object *getObject(int objIdx, int objNum, Object *obj); + + int *getOffsets() { return offsets; } + Guint getFirstOffset() { return firstOffset; } + +private: + + int objStrNum; // object number of the object stream + int nObjects; // number of objects in the stream + Object *objs; // the objects (length = nObjects) + int *objNums; // the object numbers (length = nObjects) + int *offsets; // the object offsets (length = nObjects) + Guint firstOffset; +}; + //------------------------------------------------------------------------ // XRef @@ -95,6 +124,7 @@ public: int getSize() { return size; } XRefEntry *getEntry(int i) { return &entries[i]; } Object *getTrailerDict() { return &trailerDict; } + ObjectStream *getObjStr() { return objStr; } private: |