The Tor Browser: gfx/skia/trunk/src/core/SkFontHost.cpp@b8a032363ba2 (annotated)

gfx/skia/trunk/src/core/SkFontHost.cpp@b8a032363ba2 (annotated)

gfx/skia/trunk/src/core/SkFontHost.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /*
  * Copyright 2009 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkFontLCDConfig.h"
 #include "SkOnce.h"
 static SkFontLCDConfig::LCDOrientation gLCDOrientation = SkFontLCDConfig::kHorizontal_LCDOrientation;
 static SkFontLCDConfig::LCDOrder gLCDOrder = SkFontLCDConfig::kRGB_LCDOrder;
 SkFontLCDConfig::LCDOrientation SkFontLCDConfig::GetSubpixelOrientation() {
     return gLCDOrientation;
 }
 void SkFontLCDConfig::SetSubpixelOrientation(LCDOrientation orientation) {
     gLCDOrientation = orientation;
 }
 SkFontLCDConfig::LCDOrder SkFontLCDConfig::GetSubpixelOrder() {
     return gLCDOrder;
 }
 void SkFontLCDConfig::SetSubpixelOrder(LCDOrder order) {
     gLCDOrder = order;
 }
 ///////////////////////////////////////////////////////////////////////////////
 // Legacy wrappers : remove from SkFontHost when webkit switches to new API
 #include "SkFontHost.h"
 SkFontHost::LCDOrientation SkFontHost::GetSubpixelOrientation() {
     return (SkFontHost::LCDOrientation)SkFontLCDConfig::GetSubpixelOrientation();
 }
 void SkFontHost::SetSubpixelOrientation(LCDOrientation orientation) {
     SkFontLCDConfig::SetSubpixelOrientation((SkFontLCDConfig::LCDOrientation)orientation);
 }
 SkFontHost::LCDOrder SkFontHost::GetSubpixelOrder() {
     return (SkFontHost::LCDOrder)SkFontLCDConfig::GetSubpixelOrder();
 }
 void SkFontHost::SetSubpixelOrder(LCDOrder order) {
     SkFontLCDConfig::SetSubpixelOrder((SkFontLCDConfig::LCDOrder)order);
 }
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////
 #include "SkFontStyle.h"
 SkFontStyle::SkFontStyle() {
     fUnion.fU32 = 0;
     fUnion.fR.fWeight = kNormal_Weight;
     fUnion.fR.fWidth = kNormal_Width;
     fUnion.fR.fSlant = kUpright_Slant;
 }
 SkFontStyle::SkFontStyle(int weight, int width, Slant slant) {
     fUnion.fU32 = 0;
     fUnion.fR.fWeight = SkPin32(weight, kThin_Weight, kBlack_Weight);
     fUnion.fR.fWidth = SkPin32(width, kUltraCondensed_Width, kUltaExpanded_Width);
     fUnion.fR.fSlant = SkPin32(slant, kUpright_Slant, kItalic_Slant);
 }
 #include "SkFontMgr.h"
 class SkEmptyFontStyleSet : public SkFontStyleSet {
 public:
     virtual int count() SK_OVERRIDE { return 0; }
     virtual void getStyle(int, SkFontStyle*, SkString*) SK_OVERRIDE {
         SkDEBUGFAIL("SkFontStyleSet::getStyle called on empty set");
     }
     virtual SkTypeface* createTypeface(int index) SK_OVERRIDE {
         SkDEBUGFAIL("SkFontStyleSet::createTypeface called on empty set");
         return NULL;
     }
     virtual SkTypeface* matchStyle(const SkFontStyle&) SK_OVERRIDE {
         return NULL;
     }
 };
 SkFontStyleSet* SkFontStyleSet::CreateEmpty() {
     return SkNEW(SkEmptyFontStyleSet);
 }
 ///////////////////////////////////////////////////////////////////////////////
 class SkEmptyFontMgr : public SkFontMgr {
 protected:
     virtual int onCountFamilies() const SK_OVERRIDE {
         return 0;
     }
     virtual void onGetFamilyName(int index, SkString* familyName) const SK_OVERRIDE {
         SkDEBUGFAIL("onGetFamilyName called with bad index");
     }
     virtual SkFontStyleSet* onCreateStyleSet(int index) const SK_OVERRIDE {
         SkDEBUGFAIL("onCreateStyleSet called with bad index");
         return NULL;
     }
     virtual SkFontStyleSet* onMatchFamily(const char[]) const SK_OVERRIDE {
         return SkFontStyleSet::CreateEmpty();
     }
     virtual SkTypeface* onMatchFamilyStyle(const char[],
                                            const SkFontStyle&) const SK_OVERRIDE {
         return NULL;
     }
     virtual SkTypeface* onMatchFaceStyle(const SkTypeface*,
                                          const SkFontStyle&) const SK_OVERRIDE {
         return NULL;
     }
     virtual SkTypeface* onCreateFromData(SkData*, int) const SK_OVERRIDE {
         return NULL;
     }
     virtual SkTypeface* onCreateFromStream(SkStream*, int) const SK_OVERRIDE {
         return NULL;
     }
     virtual SkTypeface* onCreateFromFile(const char[], int) const SK_OVERRIDE {
         return NULL;
     }
     virtual SkTypeface* onLegacyCreateTypeface(const char [], unsigned) const SK_OVERRIDE {
         return NULL;
     }
 };
 static SkFontStyleSet* emptyOnNull(SkFontStyleSet* fsset) {
     if (NULL == fsset) {
         fsset = SkFontStyleSet::CreateEmpty();
     }
     return fsset;
 }
 int SkFontMgr::countFamilies() const {
     return this->onCountFamilies();
 }
 void SkFontMgr::getFamilyName(int index, SkString* familyName) const {
     this->onGetFamilyName(index, familyName);
 }
 SkFontStyleSet* SkFontMgr::createStyleSet(int index) const {
     return emptyOnNull(this->onCreateStyleSet(index));
 }
 SkFontStyleSet* SkFontMgr::matchFamily(const char familyName[]) const {
     return emptyOnNull(this->onMatchFamily(familyName));
 }
 SkTypeface* SkFontMgr::matchFamilyStyle(const char familyName[],
                                         const SkFontStyle& fs) const {
     return this->onMatchFamilyStyle(familyName, fs);
 }
 SkTypeface* SkFontMgr::matchFaceStyle(const SkTypeface* face,
                                       const SkFontStyle& fs) const {
     return this->onMatchFaceStyle(face, fs);
 }
 SkTypeface* SkFontMgr::createFromData(SkData* data, int ttcIndex) const {
     if (NULL == data) {
         return NULL;
     }
     return this->onCreateFromData(data, ttcIndex);
 }
 SkTypeface* SkFontMgr::createFromStream(SkStream* stream, int ttcIndex) const {
     if (NULL == stream) {
         return NULL;
     }
     return this->onCreateFromStream(stream, ttcIndex);
 }
 SkTypeface* SkFontMgr::createFromFile(const char path[], int ttcIndex) const {
     if (NULL == path) {
         return NULL;
     }
     return this->onCreateFromFile(path, ttcIndex);
 }
 SkTypeface* SkFontMgr::legacyCreateTypeface(const char familyName[],
                                             unsigned styleBits) const {
     return this->onLegacyCreateTypeface(familyName, styleBits);
 }
 void set_up_default(SkFontMgr** singleton) {
   *singleton = SkFontMgr::Factory();
   // we never want to return NULL
   if (NULL == *singleton) {
       *singleton = SkNEW(SkEmptyFontMgr);
   }
 }
 SkFontMgr* SkFontMgr::RefDefault() {
     static SkFontMgr* gFM = NULL;
     SK_DECLARE_STATIC_ONCE(once);
     SkOnce(&once, set_up_default, &gFM);
     return SkRef(gFM);
 }
 //////////////////////////////////////////////////////////////////////////
 #ifndef SK_FONTHOST_DOES_NOT_USE_FONTMGR
 #if 0
 static SkFontStyle TypefaceStyleBitsToFontStyle(SkTypeface::Style styleBits) {
     SkFontStyle::Weight weight = (styleBits & SkTypeface::kBold) ?
                                      SkFontStyle::kBold_Weight :
                                      SkFontStyle::kNormal_Weight;
     SkFontStyle::Width width = SkFontStyle::kNormal_Width;
     SkFontStyle::Slant slant = (styleBits & SkTypeface::kItalic) ?
                                      SkFontStyle::kUpright_Slant :
                                      SkFontStyle::kItalic_Slant;
     return SkFontStyle(weight, width, slant);
 }
 #endif
 SkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace,
                                        const char familyName[],
                                        SkTypeface::Style style) {
     SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
     if (familyFace) {
         bool bold = style & SkTypeface::kBold;
         bool italic = style & SkTypeface::kItalic;
         SkFontStyle newStyle = SkFontStyle(bold ? SkFontStyle::kBold_Weight
                                                 : SkFontStyle::kNormal_Weight,
                                            SkFontStyle::kNormal_Width,
                                            italic ? SkFontStyle::kItalic_Slant
                                                   : SkFontStyle::kUpright_Slant);
         return fm->matchFaceStyle(familyFace, newStyle);
     } else {
         return fm->legacyCreateTypeface(familyName, style);
     }
 }
 SkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) {
     SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
     return fm->createFromFile(path);
 }
 SkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) {
     SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
     return fm->createFromStream(stream);
 }
 #endif

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gfx/skia/trunk/src/core/SkFontHost.cpp@b8a032363ba2 (annotated)

gfx/skia/trunk/src/core/SkFontHost.cpp