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-rw-r--r--kpdf/xpdf/splash/SplashFontEngine.cc295
1 files changed, 295 insertions, 0 deletions
diff --git a/kpdf/xpdf/splash/SplashFontEngine.cc b/kpdf/xpdf/splash/SplashFontEngine.cc
new file mode 100644
index 00000000..4dc1b35b
--- /dev/null
+++ b/kpdf/xpdf/splash/SplashFontEngine.cc
@@ -0,0 +1,295 @@
+//========================================================================
+//
+// SplashFontEngine.cc
+//
+//========================================================================
+
+#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;
+}
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