You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
296 lines
7.2 KiB
296 lines
7.2 KiB
//========================================================================
|
|
//
|
|
// SplashFontEngine.cpp
|
|
//
|
|
//========================================================================
|
|
|
|
#include <aconf.h>
|
|
|
|
#ifdef USE_GCC_PRAGMAS
|
|
#pragma implementation
|
|
#endif
|
|
|
|
#if HAVE_T1LIB_H
|
|
#include <t1lib.h>
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#ifndef WIN32
|
|
# include <unistd.h>
|
|
#endif
|
|
#include "gmem.h"
|
|
#include "GString.h"
|
|
#include "SplashMath.h"
|
|
#include "SplashT1FontEngine.h"
|
|
#include "SplashFTFontEngine.h"
|
|
#include "SplashFontFile.h"
|
|
#include "SplashFontFileID.h"
|
|
#include "SplashFont.h"
|
|
#include "SplashFontEngine.h"
|
|
|
|
#ifdef VMS
|
|
#if (__VMS_VER < 70000000)
|
|
extern "C" int unlink(char *filename);
|
|
#endif
|
|
#endif
|
|
|
|
//------------------------------------------------------------------------
|
|
// SplashFontEngine
|
|
//------------------------------------------------------------------------
|
|
|
|
SplashFontEngine::SplashFontEngine(
|
|
#if HAVE_T1LIB_H
|
|
GBool enableT1lib,
|
|
#endif
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
GBool enableFreeType,
|
|
#endif
|
|
GBool aa) {
|
|
int i;
|
|
|
|
for (i = 0; i < splashFontCacheSize; ++i) {
|
|
fontCache[i] = NULL;
|
|
}
|
|
|
|
#if HAVE_T1LIB_H
|
|
if (enableT1lib) {
|
|
t1Engine = SplashT1FontEngine::init(aa);
|
|
} else {
|
|
t1Engine = NULL;
|
|
}
|
|
#endif
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
if (enableFreeType) {
|
|
ftEngine = SplashFTFontEngine::init(aa);
|
|
} else {
|
|
ftEngine = NULL;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
SplashFontEngine::~SplashFontEngine() {
|
|
int i;
|
|
|
|
for (i = 0; i < splashFontCacheSize; ++i) {
|
|
if (fontCache[i]) {
|
|
delete fontCache[i];
|
|
}
|
|
}
|
|
|
|
#if HAVE_T1LIB_H
|
|
if (t1Engine) {
|
|
delete t1Engine;
|
|
}
|
|
#endif
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
if (ftEngine) {
|
|
delete ftEngine;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
SplashFontFile *SplashFontEngine::getFontFile(SplashFontFileID *id) {
|
|
SplashFontFile *fontFile;
|
|
int i;
|
|
|
|
for (i = 0; i < splashFontCacheSize; ++i) {
|
|
if (fontCache[i]) {
|
|
fontFile = fontCache[i]->getFontFile();
|
|
if (fontFile && fontFile->getID()->matches(id)) {
|
|
return fontFile;
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
SplashFontFile *SplashFontEngine::loadType1Font(SplashFontFileID *idA,
|
|
SplashFontSrc *src,
|
|
char **enc) {
|
|
SplashFontFile *fontFile;
|
|
|
|
fontFile = NULL;
|
|
#if HAVE_T1LIB_H
|
|
if (!fontFile && t1Engine) {
|
|
fontFile = t1Engine->loadType1Font(idA, src, enc);
|
|
}
|
|
#endif
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
if (!fontFile && ftEngine) {
|
|
fontFile = ftEngine->loadType1Font(idA, src, enc);
|
|
}
|
|
#endif
|
|
|
|
// delete the (temporary) font file -- with Unix hard link
|
|
// semantics, this will remove the last link; otherwise it will
|
|
// return an error, leaving the file to be deleted later (if
|
|
// loadXYZFont failed, the file will always be deleted)
|
|
if (src->isFile)
|
|
src->unref();
|
|
|
|
return fontFile;
|
|
}
|
|
|
|
SplashFontFile *SplashFontEngine::loadType1CFont(SplashFontFileID *idA,
|
|
SplashFontSrc *src,
|
|
char **enc) {
|
|
SplashFontFile *fontFile;
|
|
|
|
fontFile = NULL;
|
|
#if HAVE_T1LIB_H
|
|
if (!fontFile && t1Engine) {
|
|
fontFile = t1Engine->loadType1CFont(idA, sec, enc);
|
|
}
|
|
#endif
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
if (!fontFile && ftEngine) {
|
|
fontFile = ftEngine->loadType1CFont(idA, src, enc);
|
|
}
|
|
#endif
|
|
|
|
// delete the (temporary) font file -- with Unix hard link
|
|
// semantics, this will remove the last link; otherwise it will
|
|
// return an error, leaving the file to be deleted later (if
|
|
// loadXYZFont failed, the file will always be deleted)
|
|
if (src->isFile)
|
|
src->unref();
|
|
|
|
return fontFile;
|
|
}
|
|
|
|
SplashFontFile *SplashFontEngine::loadOpenTypeT1CFont(SplashFontFileID *idA,
|
|
SplashFontSrc *src,
|
|
char **enc) {
|
|
SplashFontFile *fontFile;
|
|
|
|
fontFile = NULL;
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
if (!fontFile && ftEngine) {
|
|
fontFile = ftEngine->loadOpenTypeT1CFont(idA, src, enc);
|
|
}
|
|
#endif
|
|
|
|
// delete the (temporary) font file -- with Unix hard link
|
|
// semantics, this will remove the last link; otherwise it will
|
|
// return an error, leaving the file to be deleted later (if
|
|
// loadXYZFont failed, the file will always be deleted)
|
|
if (src->isFile)
|
|
src->unref();
|
|
|
|
return fontFile;
|
|
}
|
|
|
|
SplashFontFile *SplashFontEngine::loadCIDFont(SplashFontFileID *idA,
|
|
SplashFontSrc *src) {
|
|
SplashFontFile *fontFile;
|
|
|
|
fontFile = NULL;
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
if (!fontFile && ftEngine) {
|
|
fontFile = ftEngine->loadCIDFont(idA, src);
|
|
}
|
|
#endif
|
|
|
|
// delete the (temporary) font file -- with Unix hard link
|
|
// semantics, this will remove the last link; otherwise it will
|
|
// return an error, leaving the file to be deleted later (if
|
|
// loadXYZFont failed, the file will always be deleted)
|
|
if (src->isFile)
|
|
src->unref();
|
|
|
|
return fontFile;
|
|
}
|
|
|
|
SplashFontFile *SplashFontEngine::loadOpenTypeCFFFont(SplashFontFileID *idA,
|
|
SplashFontSrc *src) {
|
|
SplashFontFile *fontFile;
|
|
|
|
fontFile = NULL;
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
if (!fontFile && ftEngine) {
|
|
fontFile = ftEngine->loadOpenTypeCFFFont(idA, src);
|
|
}
|
|
#endif
|
|
|
|
// delete the (temporary) font file -- with Unix hard link
|
|
// semantics, this will remove the last link; otherwise it will
|
|
// return an error, leaving the file to be deleted later (if
|
|
// loadXYZFont failed, the file will always be deleted)
|
|
if (src->isFile)
|
|
src->unref();
|
|
|
|
return fontFile;
|
|
}
|
|
|
|
SplashFontFile *SplashFontEngine::loadTrueTypeFont(SplashFontFileID *idA,
|
|
SplashFontSrc *src,
|
|
Gushort *codeToGID,
|
|
int codeToGIDLen,
|
|
int faceIndex) {
|
|
SplashFontFile *fontFile;
|
|
|
|
fontFile = NULL;
|
|
#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
|
|
if (!fontFile && ftEngine) {
|
|
fontFile = ftEngine->loadTrueTypeFont(idA, src,
|
|
codeToGID, codeToGIDLen, faceIndex);
|
|
}
|
|
#endif
|
|
|
|
if (!fontFile) {
|
|
gfree(codeToGID);
|
|
}
|
|
|
|
// delete the (temporary) font file -- with Unix hard link
|
|
// semantics, this will remove the last link; otherwise it will
|
|
// return an error, leaving the file to be deleted later (if
|
|
// loadXYZFont failed, the file will always be deleted)
|
|
if (src->isFile)
|
|
src->unref();
|
|
|
|
return fontFile;
|
|
}
|
|
|
|
SplashFont *SplashFontEngine::getFont(SplashFontFile *fontFile,
|
|
SplashCoord *textMat,
|
|
SplashCoord *ctm) {
|
|
SplashCoord mat[4];
|
|
SplashFont *font;
|
|
int i, j;
|
|
|
|
mat[0] = textMat[0] * ctm[0] + textMat[1] * ctm[2];
|
|
mat[1] = -(textMat[0] * ctm[1] + textMat[1] * ctm[3]);
|
|
mat[2] = textMat[2] * ctm[0] + textMat[3] * ctm[2];
|
|
mat[3] = -(textMat[2] * ctm[1] + textMat[3] * ctm[3]);
|
|
if (splashAbs(mat[0] * mat[3] - mat[1] * mat[2]) < 0.01) {
|
|
// avoid a singular (or close-to-singular) matrix
|
|
mat[0] = 0.01; mat[1] = 0;
|
|
mat[2] = 0; mat[3] = 0.01;
|
|
}
|
|
|
|
font = fontCache[0];
|
|
if (font && font->matches(fontFile, mat, textMat)) {
|
|
return font;
|
|
}
|
|
for (i = 1; i < splashFontCacheSize; ++i) {
|
|
font = fontCache[i];
|
|
if (font && font->matches(fontFile, mat, textMat)) {
|
|
for (j = i; j > 0; --j) {
|
|
fontCache[j] = fontCache[j-1];
|
|
}
|
|
fontCache[0] = font;
|
|
return font;
|
|
}
|
|
}
|
|
font = fontFile->makeFont(mat, textMat);
|
|
if (fontCache[splashFontCacheSize - 1]) {
|
|
delete fontCache[splashFontCacheSize - 1];
|
|
}
|
|
for (j = splashFontCacheSize - 1; j > 0; --j) {
|
|
fontCache[j] = fontCache[j-1];
|
|
}
|
|
fontCache[0] = font;
|
|
return font;
|
|
}
|