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//========================================================================
//
// SplashFTFontEngine.cc
//
// Copyright 2003-2013 Glyph & Cog, LLC
//
//========================================================================
#include <aconf.h>
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif
#include <stdio.h>
#ifndef _WIN32
# include <unistd.h>
#endif
#include "gmem.h"
#include "GString.h"
#include "gfile.h"
#include "FoFiTrueType.h"
#include "FoFiType1C.h"
#include "SplashFTFontFile.h"
#include "SplashFTFontEngine.h"
#include FT_MODULE_H
#ifdef FT_CFF_DRIVER_H
# include FT_CFF_DRIVER_H
#endif
#ifdef VMS
#if (__VMS_VER < 70000000)
extern "C" int unlink(char *filename);
#endif
#endif
//------------------------------------------------------------------------
static void fileWrite(void *stream, const char *data, int len) {
fwrite(data, 1, len, (FILE *)stream);
}
#if LOAD_FONTS_FROM_MEM
static void gstringWrite(void *stream, const char *data, int len) {
((GString *)stream)->append(data, len);
}
#endif
//------------------------------------------------------------------------
// SplashFTFontEngine
//------------------------------------------------------------------------
SplashFTFontEngine::SplashFTFontEngine(GBool aaA, Guint flagsA,
FT_Library libA) {
FT_Int major, minor, patch;
aa = aaA;
flags = flagsA;
lib = libA;
// as of FT 2.1.8, CID fonts are indexed by CID instead of GID
FT_Library_Version(lib, &major, &minor, &patch);
useCIDs = major > 2 ||
(major == 2 && (minor > 1 || (minor == 1 && patch > 7)));
}
SplashFTFontEngine *SplashFTFontEngine::init(GBool aaA, Guint flagsA) {
FT_Library libA;
if (FT_Init_FreeType(&libA)) {
return NULL;
}
return new SplashFTFontEngine(aaA, flagsA, libA);
}
SplashFTFontEngine::~SplashFTFontEngine() {
FT_Done_FreeType(lib);
}
SplashFontFile *SplashFTFontEngine::loadType1Font(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
GString *fontBuf,
#else
char *fileName,
GBool deleteFile,
#endif
const char **enc) {
return SplashFTFontFile::loadType1Font(this, idA,
#if LOAD_FONTS_FROM_MEM
fontBuf,
#else
fileName, deleteFile,
#endif
enc, gTrue);
}
SplashFontFile *SplashFTFontEngine::loadType1CFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
GString *fontBuf,
#else
char *fileName,
GBool deleteFile,
#endif
const char **enc) {
return SplashFTFontFile::loadType1Font(this, idA,
#if LOAD_FONTS_FROM_MEM
fontBuf,
#else
fileName, deleteFile,
#endif
enc, gFalse);
}
SplashFontFile *SplashFTFontEngine::loadOpenTypeT1CFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
GString *fontBuf,
#else
char *fileName,
GBool deleteFile,
#endif
const char **enc) {
FoFiTrueType *ff;
#if LOAD_FONTS_FROM_MEM
GString *fontBuf2;
#else
GString *tmpFileName;
FILE *tmpFile;
#endif
SplashFontFile *ret;
#if LOAD_FONTS_FROM_MEM
if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
0, gTrue))) {
#else
if (!(ff = FoFiTrueType::load(fileName, 0, gTrue))) {
#endif
return NULL;
}
if (ff->isHeadlessCFF()) {
#if LOAD_FONTS_FROM_MEM
fontBuf2 = new GString();
ff->convertToType1(NULL, enc, gFalse, &gstringWrite, fontBuf2);
delete ff;
ret = SplashFTFontFile::loadType1Font(this, idA, fontBuf2, enc,
gFalse);
if (ret) {
delete fontBuf;
} else {
delete fontBuf2;
}
#else
tmpFileName = NULL;
if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
delete ff;
return NULL;
}
ff->convertToType1(NULL, enc, gFalse, &fileWrite, tmpFile);
delete ff;
fclose(tmpFile);
ret = SplashFTFontFile::loadType1Font(this, idA, tmpFileName->getCString(),
gTrue, enc, gFalse);
if (ret) {
if (deleteFile) {
unlink(fileName);
}
} else {
unlink(tmpFileName->getCString());
}
delete tmpFileName;
#endif
} else {
delete ff;
ret = SplashFTFontFile::loadType1Font(this, idA,
#if LOAD_FONTS_FROM_MEM
fontBuf,
#else
fileName, deleteFile,
#endif
enc, gFalse);
}
return ret;
}
SplashFontFile *SplashFTFontEngine::loadCIDFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
GString *fontBuf
#else
char *fileName,
GBool deleteFile
#endif
) {
FoFiType1C *ff;
int *cidToGIDMap;
int nCIDs;
SplashFontFile *ret;
// check for a CFF font
if (useCIDs) {
cidToGIDMap = NULL;
nCIDs = 0;
#if LOAD_FONTS_FROM_MEM
} else if ((ff = FoFiType1C::make(fontBuf->getCString(),
fontBuf->getLength()))) {
#else
} else if ((ff = FoFiType1C::load(fileName))) {
#endif
cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
delete ff;
} else {
cidToGIDMap = NULL;
nCIDs = 0;
}
ret = SplashFTFontFile::loadCIDFont(this, idA,
#if LOAD_FONTS_FROM_MEM
fontBuf,
#else
fileName, deleteFile,
#endif
cidToGIDMap, nCIDs);
if (!ret) {
gfree(cidToGIDMap);
}
return ret;
}
SplashFontFile *SplashFTFontEngine::loadOpenTypeCFFFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
GString *fontBuf,
#else
char *fileName,
GBool deleteFile,
#endif
int *codeToGID,
int codeToGIDLen) {
FoFiTrueType *ff;
#if LOAD_FONTS_FROM_MEM
GString *fontBuf2;
#else
GString *tmpFileName;
FILE *tmpFile;
#endif
char *cffStart;
int cffLength;
int *cidToGIDMap;
int nCIDs;
SplashFontFile *ret;
#if LOAD_FONTS_FROM_MEM
if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
0, gTrue))) {
#else
if (!(ff = FoFiTrueType::load(fileName, 0, gTrue))) {
#endif
return NULL;
}
cidToGIDMap = NULL;
nCIDs = 0;
if (ff->isHeadlessCFF()) {
if (!ff->getCFFBlock(&cffStart, &cffLength)) {
return NULL;
}
#if LOAD_FONTS_FROM_MEM
fontBuf2 = new GString(cffStart, cffLength);
if (!useCIDs) {
cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
}
ret = SplashFTFontFile::loadCIDFont(this, idA, fontBuf2,
cidToGIDMap, nCIDs);
if (ret) {
delete fontBuf;
} else {
delete fontBuf2;
}
#else
tmpFileName = NULL;
if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
delete ff;
return NULL;
}
fwrite(cffStart, 1, cffLength, tmpFile);
fclose(tmpFile);
if (!useCIDs) {
cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
}
ret = SplashFTFontFile::loadCIDFont(this, idA,
tmpFileName->getCString(), gTrue,
cidToGIDMap, nCIDs);
if (ret) {
if (deleteFile) {
unlink(fileName);
}
} else {
unlink(tmpFileName->getCString());
}
delete tmpFileName;
#endif
} else {
if (!codeToGID && !useCIDs && ff->isOpenTypeCFF()) {
cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
}
ret = SplashFTFontFile::loadCIDFont(this, idA,
#if LOAD_FONTS_FROM_MEM
fontBuf,
#else
fileName, deleteFile,
#endif
codeToGID ? codeToGID : cidToGIDMap,
codeToGID ? codeToGIDLen : nCIDs);
}
delete ff;
if (!ret) {
gfree(cidToGIDMap);
}
return ret;
}
SplashFontFile *SplashFTFontEngine::loadTrueTypeFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
GString *fontBuf,
#else
char *fileName,
GBool deleteFile,
#endif
int fontNum,
int *codeToGID,
int codeToGIDLen) {
FoFiTrueType *ff;
#if LOAD_FONTS_FROM_MEM
GString *fontBuf2;
#else
GString *tmpFileName;
FILE *tmpFile;
#endif
SplashFontFile *ret;
#if LOAD_FONTS_FROM_MEM
if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
fontNum))) {
#else
if (!(ff = FoFiTrueType::load(fileName, fontNum))) {
#endif
return NULL;
}
#if LOAD_FONTS_FROM_MEM
fontBuf2 = new GString;
ff->writeTTF(&gstringWrite, fontBuf2);
#else
tmpFileName = NULL;
if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
delete ff;
return NULL;
}
ff->writeTTF(&fileWrite, tmpFile);
fclose(tmpFile);
#endif
delete ff;
ret = SplashFTFontFile::loadTrueTypeFont(this, idA,
#if LOAD_FONTS_FROM_MEM
fontBuf2,
#else
tmpFileName->getCString(), gTrue,
#endif
0, codeToGID, codeToGIDLen);
#if LOAD_FONTS_FROM_MEM
if (ret) {
delete fontBuf;
} else {
delete fontBuf2;
}
#else
if (ret) {
if (deleteFile) {
unlink(fileName);
}
} else {
unlink(tmpFileName->getCString());
}
delete tmpFileName;
#endif
return ret;
}
#endif // HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
