diff options
Diffstat (limited to 'gfx/skia/patches/archive/0005-Bug-736276-Add-a-new-SkFontHost-that-takes-a-cairo_s.patch')
| -rw-r--r-- | gfx/skia/patches/archive/0005-Bug-736276-Add-a-new-SkFontHost-that-takes-a-cairo_s.patch | 472 |
1 files changed, 472 insertions, 0 deletions
diff --git a/gfx/skia/patches/archive/0005-Bug-736276-Add-a-new-SkFontHost-that-takes-a-cairo_s.patch b/gfx/skia/patches/archive/0005-Bug-736276-Add-a-new-SkFontHost-that-takes-a-cairo_s.patch new file mode 100644 index 000000000..4b76fcea1 --- /dev/null +++ b/gfx/skia/patches/archive/0005-Bug-736276-Add-a-new-SkFontHost-that-takes-a-cairo_s.patch @@ -0,0 +1,472 @@ +From: George Wright <george@mozilla.com> +Date: Wed, 1 Aug 2012 16:43:15 -0400 +Subject: Bug 736276 - Add a new SkFontHost that takes a cairo_scaled_font_t r=karl + + +diff --git a/gfx/skia/Makefile.in b/gfx/skia/Makefile.in +index 5ebbd2e..7c8cdbf 100644 +--- a/gfx/skia/Makefile.in ++++ b/gfx/skia/Makefile.in +@@ -60,15 +60,15 @@ VPATH += \ + $(NULL) + + ifeq (android,$(MOZ_WIDGET_TOOLKIT)) +-OS_CXXFLAGS += $(CAIRO_FT_CFLAGS) ++OS_CXXFLAGS += $(MOZ_CAIRO_CFLAGS) $(CAIRO_FT_CFLAGS) + endif + + ifeq (gtk2,$(MOZ_WIDGET_TOOLKIT)) +-OS_CXXFLAGS += $(MOZ_PANGO_CFLAGS) ++OS_CXXFLAGS += $(MOZ_CAIRO_CFLAGS) $(MOZ_PANGO_CFLAGS) $(CAIRO_FT_CFLAGS) + endif + + ifeq (qt,$(MOZ_WIDGET_TOOLKIT)) +-OS_CXXFLAGS += $(MOZ_PANGO_CFLAGS) ++OS_CXXFLAGS += $(MOZ_CAIRO_CFLAGS) $(MOZ_PANGO_CFLAGS) $(CAIRO_FT_CFLAGS) + ifeq (Linux,$(OS_TARGET)) + DEFINES += -DSK_USE_POSIX_THREADS=1 + endif +diff --git a/gfx/skia/include/ports/SkTypeface_cairo.h b/gfx/skia/include/ports/SkTypeface_cairo.h +new file mode 100644 +index 0000000..7e44f04 +--- /dev/null ++++ b/gfx/skia/include/ports/SkTypeface_cairo.h +@@ -0,0 +1,11 @@ ++#ifndef SkTypeface_cairo_DEFINED ++#define SkTypeface_cairo_DEFINED ++ ++#include <cairo.h> ++ ++#include "SkTypeface.h" ++ ++SK_API extern SkTypeface* SkCreateTypefaceFromCairoFont(cairo_font_face_t* fontFace, SkTypeface::Style style, bool isFixedWidth); ++ ++#endif ++ +diff --git a/gfx/skia/moz.build b/gfx/skia/moz.build +index 9ceba59..66efd52 100644 +--- a/gfx/skia/moz.build ++++ b/gfx/skia/moz.build +@@ -171,10 +171,12 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'windows': + 'SkTime_win.cpp', + ] + elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gtk2': ++ EXPORTS.skia += [ ++ 'include/ports/SkTypeface_cairo.h', ++ ] + CPP_SOURCES += [ +- 'SkFontHost_FreeType.cpp', ++ 'SkFontHost_cairo.cpp', + 'SkFontHost_FreeType_common.cpp', +- 'SkFontHost_linux.cpp', + 'SkThread_pthread.cpp', + 'SkThreadUtils_pthread.cpp', + 'SkThreadUtils_pthread_linux.cpp', +@@ -183,14 +185,15 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gtk2': + ] + elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'qt': + CPP_SOURCES += [ +- 'SkFontHost_FreeType.cpp', ++ 'SkFontHost_cairo.cpp', + 'SkFontHost_FreeType_common.cpp', + 'SkOSFile.cpp', + ] + if CONFIG['OS_TARGET'] == 'Linux': ++ EXPORTS.skia += [ ++ 'include/ports/SkTypeface_cairo.h', ++ ] + CPP_SOURCES += [ +- 'SkFontHost_linux.cpp', +- 'SkFontHost_tables.cpp', + 'SkThread_pthread.cpp', + 'SkThreadUtils_pthread.cpp', + 'SkThreadUtils_pthread_linux.cpp', +@@ -204,11 +207,13 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gonk': + # Separate 'if' from above, since the else below applies to all != 'android' + # toolkits. + if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'android': ++ EXPORTS.skia += [ ++ 'include/ports/SkTypeface_cairo.h', ++ ] + CPP_SOURCES += [ + 'ashmem.cpp', + 'SkDebug_android.cpp', +- 'SkFontHost_android_old.cpp', +- 'SkFontHost_FreeType.cpp', ++ 'SkFontHost_cairo.cpp', + 'SkFontHost_FreeType_common.cpp', + 'SkImageRef_ashmem.cpp', + 'SkTime_Unix.cpp', +diff --git a/gfx/skia/src/ports/SkFontHost_cairo.cpp b/gfx/skia/src/ports/SkFontHost_cairo.cpp +new file mode 100644 +index 0000000..bb5b778 +--- /dev/null ++++ b/gfx/skia/src/ports/SkFontHost_cairo.cpp +@@ -0,0 +1,364 @@ ++ ++/* ++ * Copyright 2012 Mozilla Foundation ++ * ++ * Use of this source code is governed by a BSD-style license that can be ++ * found in the LICENSE file. ++ */ ++ ++#include "cairo.h" ++#include "cairo-ft.h" ++ ++#include "SkFontHost_FreeType_common.h" ++ ++#include "SkAdvancedTypefaceMetrics.h" ++#include "SkFontHost.h" ++#include "SkPath.h" ++#include "SkScalerContext.h" ++#include "SkTypefaceCache.h" ++ ++#include <ft2build.h> ++#include FT_FREETYPE_H ++ ++static cairo_user_data_key_t kSkTypefaceKey; ++ ++class SkScalerContext_CairoFT : public SkScalerContext_FreeType_Base { ++public: ++ SkScalerContext_CairoFT(SkTypeface* typeface, const SkDescriptor* desc); ++ virtual ~SkScalerContext_CairoFT(); ++ ++protected: ++ virtual unsigned generateGlyphCount() SK_OVERRIDE; ++ virtual uint16_t generateCharToGlyph(SkUnichar uniChar) SK_OVERRIDE; ++ virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; ++ virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; ++ virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; ++ virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; ++ virtual void generateFontMetrics(SkPaint::FontMetrics* mx, ++ SkPaint::FontMetrics* my) SK_OVERRIDE; ++ virtual SkUnichar generateGlyphToChar(uint16_t glyph) SK_OVERRIDE; ++private: ++ cairo_scaled_font_t* fScaledFont; ++ uint32_t fLoadGlyphFlags; ++}; ++ ++class CairoLockedFTFace { ++public: ++ CairoLockedFTFace(cairo_scaled_font_t* scaledFont) ++ : fScaledFont(scaledFont) ++ , fFace(cairo_ft_scaled_font_lock_face(scaledFont)) ++ {} ++ ++ ~CairoLockedFTFace() ++ { ++ cairo_ft_scaled_font_unlock_face(fScaledFont); ++ } ++ ++ FT_Face getFace() ++ { ++ return fFace; ++ } ++ ++private: ++ cairo_scaled_font_t* fScaledFont; ++ FT_Face fFace; ++}; ++ ++class SkCairoFTTypeface : public SkTypeface { ++public: ++ static SkTypeface* CreateTypeface(cairo_font_face_t* fontFace, SkTypeface::Style style, bool isFixedWidth) { ++ SkASSERT(fontFace != NULL); ++ SkASSERT(cairo_font_face_get_type(fontFace) == CAIRO_FONT_TYPE_FT); ++ ++ SkFontID newId = SkTypefaceCache::NewFontID(); ++ ++ return SkNEW_ARGS(SkCairoFTTypeface, (fontFace, style, newId, isFixedWidth)); ++ } ++ ++ cairo_font_face_t* getFontFace() { ++ return fFontFace; ++ } ++ ++ virtual SkStream* onOpenStream(int*) const SK_OVERRIDE { return NULL; } ++ ++ virtual SkAdvancedTypefaceMetrics* ++ onGetAdvancedTypefaceMetrics(SkAdvancedTypefaceMetrics::PerGlyphInfo, ++ const uint32_t*, uint32_t) const SK_OVERRIDE ++ { ++ SkDEBUGCODE(SkDebugf("SkCairoFTTypeface::onGetAdvancedTypefaceMetrics unimplemented\n")); ++ return NULL; ++ } ++ ++ virtual SkScalerContext* onCreateScalerContext(const SkDescriptor* desc) const SK_OVERRIDE ++ { ++ return SkNEW_ARGS(SkScalerContext_CairoFT, (const_cast<SkCairoFTTypeface*>(this), desc)); ++ } ++ ++ virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE ++ { ++ SkDEBUGCODE(SkDebugf("SkCairoFTTypeface::onFilterRec unimplemented\n")); ++ } ++ ++ virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE ++ { ++ SkDEBUGCODE(SkDebugf("SkCairoFTTypeface::onGetFontDescriptor unimplemented\n")); ++ } ++ ++ ++private: ++ ++ SkCairoFTTypeface(cairo_font_face_t* fontFace, SkTypeface::Style style, SkFontID id, bool isFixedWidth) ++ : SkTypeface(style, id, isFixedWidth) ++ , fFontFace(fontFace) ++ { ++ cairo_font_face_set_user_data(fFontFace, &kSkTypefaceKey, this, NULL); ++ cairo_font_face_reference(fFontFace); ++ } ++ ++ ~SkCairoFTTypeface() ++ { ++ cairo_font_face_set_user_data(fFontFace, &kSkTypefaceKey, NULL, NULL); ++ cairo_font_face_destroy(fFontFace); ++ } ++ ++ cairo_font_face_t* fFontFace; ++}; ++ ++SkTypeface* SkCreateTypefaceFromCairoFont(cairo_font_face_t* fontFace, SkTypeface::Style style, bool isFixedWidth) ++{ ++ SkTypeface* typeface = reinterpret_cast<SkTypeface*>(cairo_font_face_get_user_data(fontFace, &kSkTypefaceKey)); ++ ++ if (typeface) { ++ typeface->ref(); ++ } else { ++ typeface = SkCairoFTTypeface::CreateTypeface(fontFace, style, isFixedWidth); ++ SkTypefaceCache::Add(typeface, style); ++ } ++ ++ return typeface; ++} ++ ++SkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, ++ const char famillyName[], ++ SkTypeface::Style style) ++{ ++ SkDEBUGFAIL("SkFontHost::FindTypeface unimplemented"); ++ return NULL; ++} ++ ++SkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream*) ++{ ++ SkDEBUGFAIL("SkFontHost::CreateTypeface unimplemented"); ++ return NULL; ++} ++ ++SkTypeface* SkFontHost::CreateTypefaceFromFile(char const*) ++{ ++ SkDEBUGFAIL("SkFontHost::CreateTypefaceFromFile unimplemented"); ++ return NULL; ++} ++ ++/////////////////////////////////////////////////////////////////////////////// ++ ++static bool isLCD(const SkScalerContext::Rec& rec) { ++ switch (rec.fMaskFormat) { ++ case SkMask::kLCD16_Format: ++ case SkMask::kLCD32_Format: ++ return true; ++ default: ++ return false; ++ } ++} ++ ++/////////////////////////////////////////////////////////////////////////////// ++SkScalerContext_CairoFT::SkScalerContext_CairoFT(SkTypeface* typeface, const SkDescriptor* desc) ++ : SkScalerContext_FreeType_Base(typeface, desc) ++{ ++ SkMatrix matrix; ++ fRec.getSingleMatrix(&matrix); ++ ++ cairo_font_face_t* fontFace = static_cast<SkCairoFTTypeface*>(typeface)->getFontFace(); ++ ++ cairo_matrix_t fontMatrix, ctMatrix; ++ cairo_matrix_init(&fontMatrix, matrix.getScaleX(), matrix.getSkewY(), matrix.getSkewX(), matrix.getScaleY(), 0.0, 0.0); ++ cairo_matrix_init_scale(&ctMatrix, 1.0, 1.0); ++ ++ // We need to ensure that the font options match for hinting, as generateMetrics() ++ // uses the fScaledFont which uses these font options ++ cairo_font_options_t *fontOptions = cairo_font_options_create(); ++ ++ FT_Int32 loadFlags = FT_LOAD_DEFAULT; ++ ++ if (SkMask::kBW_Format == fRec.fMaskFormat) { ++ // See http://code.google.com/p/chromium/issues/detail?id=43252#c24 ++ loadFlags = FT_LOAD_TARGET_MONO; ++ if (fRec.getHinting() == SkPaint::kNo_Hinting) { ++ cairo_font_options_set_hint_style(fontOptions, CAIRO_HINT_STYLE_NONE); ++ loadFlags = FT_LOAD_NO_HINTING; ++ } ++ } else { ++ switch (fRec.getHinting()) { ++ case SkPaint::kNo_Hinting: ++ loadFlags = FT_LOAD_NO_HINTING; ++ cairo_font_options_set_hint_style(fontOptions, CAIRO_HINT_STYLE_NONE); ++ break; ++ case SkPaint::kSlight_Hinting: ++ loadFlags = FT_LOAD_TARGET_LIGHT; // This implies FORCE_AUTOHINT ++ cairo_font_options_set_hint_style(fontOptions, CAIRO_HINT_STYLE_SLIGHT); ++ break; ++ case SkPaint::kNormal_Hinting: ++ cairo_font_options_set_hint_style(fontOptions, CAIRO_HINT_STYLE_MEDIUM); ++ if (fRec.fFlags & SkScalerContext::kAutohinting_Flag) { ++ loadFlags = FT_LOAD_FORCE_AUTOHINT; ++ } ++ break; ++ case SkPaint::kFull_Hinting: ++ cairo_font_options_set_hint_style(fontOptions, CAIRO_HINT_STYLE_FULL); ++ if (fRec.fFlags & SkScalerContext::kAutohinting_Flag) { ++ loadFlags = FT_LOAD_FORCE_AUTOHINT; ++ } ++ if (isLCD(fRec)) { ++ if (SkToBool(fRec.fFlags & SkScalerContext::kLCD_Vertical_Flag)) { ++ loadFlags = FT_LOAD_TARGET_LCD_V; ++ } else { ++ loadFlags = FT_LOAD_TARGET_LCD; ++ } ++ } ++ break; ++ default: ++ SkDebugf("---------- UNKNOWN hinting %d\n", fRec.getHinting()); ++ break; ++ } ++ } ++ ++ fScaledFont = cairo_scaled_font_create(fontFace, &fontMatrix, &ctMatrix, fontOptions); ++ ++ if ((fRec.fFlags & SkScalerContext::kEmbeddedBitmapText_Flag) == 0) { ++ loadFlags |= FT_LOAD_NO_BITMAP; ++ } ++ ++ // Always using FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH to get correct ++ // advances, as fontconfig and cairo do. ++ // See http://code.google.com/p/skia/issues/detail?id=222. ++ loadFlags |= FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH; ++ ++ fLoadGlyphFlags = loadFlags; ++} ++ ++SkScalerContext_CairoFT::~SkScalerContext_CairoFT() ++{ ++ cairo_scaled_font_destroy(fScaledFont); ++} ++ ++unsigned SkScalerContext_CairoFT::generateGlyphCount() ++{ ++ CairoLockedFTFace faceLock(fScaledFont); ++ return faceLock.getFace()->num_glyphs; ++} ++ ++uint16_t SkScalerContext_CairoFT::generateCharToGlyph(SkUnichar uniChar) ++{ ++ CairoLockedFTFace faceLock(fScaledFont); ++ return SkToU16(FT_Get_Char_Index(faceLock.getFace(), uniChar)); ++} ++ ++void SkScalerContext_CairoFT::generateAdvance(SkGlyph* glyph) ++{ ++ generateMetrics(glyph); ++} ++ ++void SkScalerContext_CairoFT::generateMetrics(SkGlyph* glyph) ++{ ++ SkASSERT(fScaledFont != NULL); ++ cairo_text_extents_t extents; ++ cairo_glyph_t cairoGlyph = { glyph->getGlyphID(fBaseGlyphCount), 0.0, 0.0 }; ++ cairo_scaled_font_glyph_extents(fScaledFont, &cairoGlyph, 1, &extents); ++ ++ glyph->fAdvanceX = SkDoubleToFixed(extents.x_advance); ++ glyph->fAdvanceY = SkDoubleToFixed(extents.y_advance); ++ glyph->fWidth = SkToU16(SkScalarCeil(extents.width)); ++ glyph->fHeight = SkToU16(SkScalarCeil(extents.height)); ++ glyph->fLeft = SkToS16(SkScalarCeil(extents.x_bearing)); ++ glyph->fTop = SkToS16(SkScalarCeil(extents.y_bearing)); ++ glyph->fLsbDelta = 0; ++ glyph->fRsbDelta = 0; ++} ++ ++void SkScalerContext_CairoFT::generateImage(const SkGlyph& glyph) ++{ ++ SkASSERT(fScaledFont != NULL); ++ CairoLockedFTFace faceLock(fScaledFont); ++ FT_Face face = faceLock.getFace(); ++ ++ FT_Error err = FT_Load_Glyph(face, glyph.getGlyphID(fBaseGlyphCount), fLoadGlyphFlags); ++ ++ if (err != 0) { ++ memset(glyph.fImage, 0, glyph.rowBytes() * glyph.fHeight); ++ return; ++ } ++ ++ generateGlyphImage(face, glyph); ++} ++ ++void SkScalerContext_CairoFT::generatePath(const SkGlyph& glyph, SkPath* path) ++{ ++ SkASSERT(fScaledFont != NULL); ++ CairoLockedFTFace faceLock(fScaledFont); ++ FT_Face face = faceLock.getFace(); ++ ++ SkASSERT(&glyph && path); ++ ++ uint32_t flags = fLoadGlyphFlags; ++ flags |= FT_LOAD_NO_BITMAP; // ignore embedded bitmaps so we're sure to get the outline ++ flags &= ~FT_LOAD_RENDER; // don't scan convert (we just want the outline) ++ ++ FT_Error err = FT_Load_Glyph(face, glyph.getGlyphID(fBaseGlyphCount), flags); ++ ++ if (err != 0) { ++ path->reset(); ++ return; ++ } ++ ++ generateGlyphPath(face, path); ++} ++ ++void SkScalerContext_CairoFT::generateFontMetrics(SkPaint::FontMetrics* mx, ++ SkPaint::FontMetrics* my) ++{ ++ SkDEBUGCODE(SkDebugf("SkScalerContext_CairoFT::generateFontMetrics unimplemented\n")); ++} ++ ++SkUnichar SkScalerContext_CairoFT::generateGlyphToChar(uint16_t glyph) ++{ ++ SkASSERT(fScaledFont != NULL); ++ CairoLockedFTFace faceLock(fScaledFont); ++ FT_Face face = faceLock.getFace(); ++ ++ FT_UInt glyphIndex; ++ SkUnichar charCode = FT_Get_First_Char(face, &glyphIndex); ++ while (glyphIndex != 0) { ++ if (glyphIndex == glyph) { ++ return charCode; ++ } ++ charCode = FT_Get_Next_Char(face, charCode, &glyphIndex); ++ } ++ ++ return 0; ++} ++ ++#ifdef SK_BUILD_FOR_ANDROID ++SkTypeface* SkAndroidNextLogicalTypeface(SkFontID currFontID, ++ SkFontID origFontID) { ++ return NULL; ++} ++#endif ++ ++/////////////////////////////////////////////////////////////////////////////// ++ ++#include "SkFontMgr.h" ++ ++SkFontMgr* SkFontMgr::Factory() { ++ // todo ++ return NULL; ++} ++ +-- +1.7.11.7 + |