mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-23 02:05:42 +00:00
1b7d8ac5fd
Rework system font lookup under OSX so that the style system passes around the same "meta" name used by Webkit, -apple-system. This makes it so that the hidden system fonts used aren't exposed to authors. It also allows us to handle the two optical sizes of font families used under OSX 10.11, which uses San Francisco as the new UI font, with one family for text sizes and another for larger, display sizes. The patch here: - moves system font lookup into gfxMacPlatformFontList - assigns the font family name to "-apple-system" - derives FindFamily to take a gfxFontStyle parameter to allow size-based lookups - maintains a list of hidden system font families (not exposed to authors) - maintains a mapping from -apple-system to the underlying hidden font families
1853 lines
58 KiB
C++
1853 lines
58 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/DebugOnly.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/Logging.h"
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#include "nsServiceManagerUtils.h"
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#include "nsExpirationTracker.h"
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#include "nsILanguageAtomService.h"
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#include "nsITimer.h"
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#include "gfxFontEntry.h"
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#include "gfxTextRun.h"
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#include "gfxPlatform.h"
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#include "nsGkAtoms.h"
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#include "gfxTypes.h"
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#include "gfxContext.h"
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#include "gfxFontConstants.h"
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#include "gfxHarfBuzzShaper.h"
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#include "gfxUserFontSet.h"
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#include "gfxPlatformFontList.h"
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#include "nsUnicodeProperties.h"
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#include "nsMathUtils.h"
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#include "nsBidiUtils.h"
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#include "nsUnicodeRange.h"
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#include "nsStyleConsts.h"
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#include "mozilla/AppUnits.h"
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#include "mozilla/FloatingPoint.h"
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#include "mozilla/Likely.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Services.h"
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#include "mozilla/Telemetry.h"
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#include "gfxSVGGlyphs.h"
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#include "gfxMathTable.h"
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#include "gfx2DGlue.h"
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#if defined(XP_MACOSX)
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#include "nsCocoaFeatures.h"
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#endif
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#include "cairo.h"
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#include "harfbuzz/hb.h"
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#include "harfbuzz/hb-ot.h"
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#include "graphite2/Font.h"
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#include <algorithm>
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using namespace mozilla;
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using namespace mozilla::gfx;
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using namespace mozilla::unicode;
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using mozilla::services::GetObserverService;
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void
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gfxCharacterMap::NotifyReleased()
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{
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gfxPlatformFontList *fontlist = gfxPlatformFontList::PlatformFontList();
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if (mShared) {
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fontlist->RemoveCmap(this);
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}
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delete this;
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}
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gfxFontEntry::gfxFontEntry() :
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mItalic(false), mFixedPitch(false),
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mIsValid(true),
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mIsBadUnderlineFont(false),
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mIsUserFontContainer(false),
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mIsDataUserFont(false),
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mIsLocalUserFont(false),
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mStandardFace(false),
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mSymbolFont(false),
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mIgnoreGDEF(false),
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mIgnoreGSUB(false),
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mSVGInitialized(false),
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mMathInitialized(false),
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mHasSpaceFeaturesInitialized(false),
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mHasSpaceFeatures(false),
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mHasSpaceFeaturesKerning(false),
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mHasSpaceFeaturesNonKerning(false),
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mSkipDefaultFeatureSpaceCheck(false),
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mGraphiteSpaceContextualsInitialized(false),
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mHasGraphiteSpaceContextuals(false),
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mSpaceGlyphIsInvisible(false),
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mSpaceGlyphIsInvisibleInitialized(false),
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mCheckedForGraphiteTables(false),
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mHasCmapTable(false),
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mGrFaceInitialized(false),
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mCheckedForColorGlyph(false),
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mWeight(500), mStretch(NS_FONT_STRETCH_NORMAL),
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mUVSOffset(0), mUVSData(nullptr),
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mLanguageOverride(NO_FONT_LANGUAGE_OVERRIDE),
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mCOLR(nullptr),
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mCPAL(nullptr),
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mUnitsPerEm(0),
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mHBFace(nullptr),
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mGrFace(nullptr),
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mGrFaceRefCnt(0)
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{
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memset(&mDefaultSubSpaceFeatures, 0, sizeof(mDefaultSubSpaceFeatures));
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memset(&mNonDefaultSubSpaceFeatures, 0, sizeof(mNonDefaultSubSpaceFeatures));
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}
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gfxFontEntry::gfxFontEntry(const nsAString& aName, bool aIsStandardFace) :
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mName(aName), mItalic(false), mFixedPitch(false),
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mIsValid(true),
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mIsBadUnderlineFont(false),
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mIsUserFontContainer(false),
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mIsDataUserFont(false),
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mIsLocalUserFont(false), mStandardFace(aIsStandardFace),
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mSymbolFont(false),
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mIgnoreGDEF(false),
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mIgnoreGSUB(false),
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mSVGInitialized(false),
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mMathInitialized(false),
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mHasSpaceFeaturesInitialized(false),
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mHasSpaceFeatures(false),
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mHasSpaceFeaturesKerning(false),
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mHasSpaceFeaturesNonKerning(false),
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mSkipDefaultFeatureSpaceCheck(false),
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mGraphiteSpaceContextualsInitialized(false),
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mHasGraphiteSpaceContextuals(false),
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mSpaceGlyphIsInvisible(false),
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mSpaceGlyphIsInvisibleInitialized(false),
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mCheckedForGraphiteTables(false),
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mHasCmapTable(false),
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mGrFaceInitialized(false),
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mCheckedForColorGlyph(false),
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mWeight(500), mStretch(NS_FONT_STRETCH_NORMAL),
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mUVSOffset(0), mUVSData(nullptr),
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mLanguageOverride(NO_FONT_LANGUAGE_OVERRIDE),
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mCOLR(nullptr),
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mCPAL(nullptr),
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mUnitsPerEm(0),
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mHBFace(nullptr),
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mGrFace(nullptr),
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mGrFaceRefCnt(0)
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{
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memset(&mDefaultSubSpaceFeatures, 0, sizeof(mDefaultSubSpaceFeatures));
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memset(&mNonDefaultSubSpaceFeatures, 0, sizeof(mNonDefaultSubSpaceFeatures));
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}
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gfxFontEntry::~gfxFontEntry()
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{
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if (mCOLR) {
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hb_blob_destroy(mCOLR);
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}
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if (mCPAL) {
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hb_blob_destroy(mCPAL);
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}
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// For downloaded fonts, we need to tell the user font cache that this
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// entry is being deleted.
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if (mIsDataUserFont) {
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gfxUserFontSet::UserFontCache::ForgetFont(this);
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}
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if (mFeatureInputs) {
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for (auto iter = mFeatureInputs->Iter(); !iter.Done(); iter.Next()) {
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hb_set_t*& set = iter.Data();
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hb_set_destroy(set);
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}
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}
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// By the time the entry is destroyed, all font instances that were
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// using it should already have been deleted, and so the HB and/or Gr
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// face objects should have been released.
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MOZ_ASSERT(!mHBFace);
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MOZ_ASSERT(!mGrFaceInitialized);
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}
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bool gfxFontEntry::IsSymbolFont()
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{
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return mSymbolFont;
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}
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bool gfxFontEntry::TestCharacterMap(uint32_t aCh)
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{
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if (!mCharacterMap) {
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ReadCMAP();
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NS_ASSERTION(mCharacterMap, "failed to initialize character map");
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}
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return mCharacterMap->test(aCh);
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}
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nsresult gfxFontEntry::InitializeUVSMap()
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{
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// mUVSOffset will not be initialized
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// until cmap is initialized.
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if (!mCharacterMap) {
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ReadCMAP();
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NS_ASSERTION(mCharacterMap, "failed to initialize character map");
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}
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if (!mUVSOffset) {
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return NS_ERROR_FAILURE;
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}
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if (!mUVSData) {
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const uint32_t kCmapTag = TRUETYPE_TAG('c','m','a','p');
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AutoTable cmapTable(this, kCmapTag);
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if (!cmapTable) {
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mUVSOffset = 0; // don't bother to read the table again
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return NS_ERROR_FAILURE;
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}
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uint8_t* uvsData;
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unsigned int cmapLen;
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const char* cmapData = hb_blob_get_data(cmapTable, &cmapLen);
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nsresult rv = gfxFontUtils::ReadCMAPTableFormat14(
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(const uint8_t*)cmapData + mUVSOffset,
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cmapLen - mUVSOffset, uvsData);
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if (NS_FAILED(rv)) {
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mUVSOffset = 0; // don't bother to read the table again
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return rv;
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}
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mUVSData = uvsData;
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}
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return NS_OK;
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}
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uint16_t gfxFontEntry::GetUVSGlyph(uint32_t aCh, uint32_t aVS)
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{
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InitializeUVSMap();
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if (mUVSData) {
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return gfxFontUtils::MapUVSToGlyphFormat14(mUVSData, aCh, aVS);
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}
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return 0;
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}
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bool gfxFontEntry::SupportsScriptInGSUB(const hb_tag_t* aScriptTags)
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{
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hb_face_t *face = GetHBFace();
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if (!face) {
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return false;
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}
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unsigned int index;
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hb_tag_t chosenScript;
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bool found =
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hb_ot_layout_table_choose_script(face, TRUETYPE_TAG('G','S','U','B'),
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aScriptTags, &index, &chosenScript);
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hb_face_destroy(face);
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return found && chosenScript != TRUETYPE_TAG('D','F','L','T');
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}
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nsresult gfxFontEntry::ReadCMAP(FontInfoData *aFontInfoData)
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{
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NS_ASSERTION(false, "using default no-op implementation of ReadCMAP");
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mCharacterMap = new gfxCharacterMap();
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return NS_OK;
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}
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nsString
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gfxFontEntry::RealFaceName()
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{
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AutoTable nameTable(this, TRUETYPE_TAG('n','a','m','e'));
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if (nameTable) {
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nsAutoString name;
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nsresult rv = gfxFontUtils::GetFullNameFromTable(nameTable, name);
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if (NS_SUCCEEDED(rv)) {
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return name;
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}
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}
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return Name();
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}
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already_AddRefed<gfxFont>
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gfxFontEntry::FindOrMakeFont(const gfxFontStyle *aStyle,
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bool aNeedsBold,
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gfxCharacterMap* aUnicodeRangeMap)
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{
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// the font entry name is the psname, not the family name
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nsRefPtr<gfxFont> font = gfxFontCache::GetCache()->Lookup(this, aStyle);
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if (!font) {
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gfxFont *newFont = CreateFontInstance(aStyle, aNeedsBold);
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if (!newFont)
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return nullptr;
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if (!newFont->Valid()) {
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delete newFont;
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return nullptr;
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}
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font = newFont;
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font->SetUnicodeRangeMap(aUnicodeRangeMap);
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gfxFontCache::GetCache()->AddNew(font);
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}
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return font.forget();
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}
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uint16_t
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gfxFontEntry::UnitsPerEm()
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{
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if (!mUnitsPerEm) {
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AutoTable headTable(this, TRUETYPE_TAG('h','e','a','d'));
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if (headTable) {
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uint32_t len;
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const HeadTable* head =
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reinterpret_cast<const HeadTable*>(hb_blob_get_data(headTable,
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&len));
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if (len >= sizeof(HeadTable)) {
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mUnitsPerEm = head->unitsPerEm;
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}
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}
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// if we didn't find a usable 'head' table, or if the value was
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// outside the valid range, record it as invalid
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if (mUnitsPerEm < kMinUPEM || mUnitsPerEm > kMaxUPEM) {
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mUnitsPerEm = kInvalidUPEM;
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}
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}
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return mUnitsPerEm;
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}
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bool
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gfxFontEntry::HasSVGGlyph(uint32_t aGlyphId)
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{
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NS_ASSERTION(mSVGInitialized, "SVG data has not yet been loaded. TryGetSVGData() first.");
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return mSVGGlyphs->HasSVGGlyph(aGlyphId);
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}
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bool
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gfxFontEntry::GetSVGGlyphExtents(gfxContext *aContext, uint32_t aGlyphId,
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gfxRect *aResult)
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{
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MOZ_ASSERT(mSVGInitialized,
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"SVG data has not yet been loaded. TryGetSVGData() first.");
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MOZ_ASSERT(mUnitsPerEm >= kMinUPEM && mUnitsPerEm <= kMaxUPEM,
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"font has invalid unitsPerEm");
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gfxContextAutoSaveRestore matrixRestore(aContext);
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cairo_matrix_t fontMatrix;
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cairo_get_font_matrix(aContext->GetCairo(), &fontMatrix);
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gfxMatrix svgToAppSpace = *reinterpret_cast<gfxMatrix*>(&fontMatrix);
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svgToAppSpace.Scale(1.0f / mUnitsPerEm, 1.0f / mUnitsPerEm);
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return mSVGGlyphs->GetGlyphExtents(aGlyphId, svgToAppSpace, aResult);
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}
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bool
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gfxFontEntry::RenderSVGGlyph(gfxContext *aContext, uint32_t aGlyphId,
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int aDrawMode, gfxTextContextPaint *aContextPaint)
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{
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NS_ASSERTION(mSVGInitialized, "SVG data has not yet been loaded. TryGetSVGData() first.");
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return mSVGGlyphs->RenderGlyph(aContext, aGlyphId, DrawMode(aDrawMode),
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aContextPaint);
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}
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bool
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gfxFontEntry::TryGetSVGData(gfxFont* aFont)
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{
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if (!gfxPlatform::GetPlatform()->OpenTypeSVGEnabled()) {
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return false;
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}
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if (!mSVGInitialized) {
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mSVGInitialized = true;
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// If UnitsPerEm is not known/valid, we can't use SVG glyphs
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if (UnitsPerEm() == kInvalidUPEM) {
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return false;
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}
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// We don't use AutoTable here because we'll pass ownership of this
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// blob to the gfxSVGGlyphs, once we've confirmed the table exists
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hb_blob_t *svgTable = GetFontTable(TRUETYPE_TAG('S','V','G',' '));
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if (!svgTable) {
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return false;
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}
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// gfxSVGGlyphs will hb_blob_destroy() the table when it is finished
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// with it.
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mSVGGlyphs = new gfxSVGGlyphs(svgTable, this);
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}
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if (!mFontsUsingSVGGlyphs.Contains(aFont)) {
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mFontsUsingSVGGlyphs.AppendElement(aFont);
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}
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return !!mSVGGlyphs;
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}
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void
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gfxFontEntry::NotifyFontDestroyed(gfxFont* aFont)
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{
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mFontsUsingSVGGlyphs.RemoveElement(aFont);
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}
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void
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gfxFontEntry::NotifyGlyphsChanged()
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{
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for (uint32_t i = 0, count = mFontsUsingSVGGlyphs.Length(); i < count; ++i) {
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gfxFont* font = mFontsUsingSVGGlyphs[i];
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font->NotifyGlyphsChanged();
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}
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}
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bool
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gfxFontEntry::TryGetMathTable()
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{
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if (!mMathInitialized) {
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mMathInitialized = true;
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// If UnitsPerEm is not known/valid, we can't use MATH table
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if (UnitsPerEm() == kInvalidUPEM) {
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return false;
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}
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// We don't use AutoTable here because we'll pass ownership of this
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// blob to the gfxMathTable, once we've confirmed the table exists
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hb_blob_t *mathTable = GetFontTable(TRUETYPE_TAG('M','A','T','H'));
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if (!mathTable) {
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return false;
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}
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// gfxMathTable will hb_blob_destroy() the table when it is finished
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// with it.
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mMathTable = new gfxMathTable(mathTable);
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if (!mMathTable->HasValidHeaders()) {
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mMathTable = nullptr;
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return false;
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}
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}
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return !!mMathTable;
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}
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gfxFloat
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gfxFontEntry::GetMathConstant(gfxFontEntry::MathConstant aConstant)
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{
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NS_ASSERTION(mMathTable, "Math data has not yet been loaded. TryGetMathData() first.");
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gfxFloat value = mMathTable->GetMathConstant(aConstant);
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if (aConstant == gfxFontEntry::ScriptPercentScaleDown ||
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aConstant == gfxFontEntry::ScriptScriptPercentScaleDown ||
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aConstant == gfxFontEntry::RadicalDegreeBottomRaisePercent) {
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return value / 100.0;
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}
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return value / mUnitsPerEm;
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}
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bool
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gfxFontEntry::GetMathItalicsCorrection(uint32_t aGlyphID,
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gfxFloat* aItalicCorrection)
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{
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NS_ASSERTION(mMathTable, "Math data has not yet been loaded. TryGetMathData() first.");
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int16_t italicCorrection;
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if (!mMathTable->GetMathItalicsCorrection(aGlyphID, &italicCorrection)) {
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return false;
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}
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*aItalicCorrection = gfxFloat(italicCorrection) / mUnitsPerEm;
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return true;
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}
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uint32_t
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gfxFontEntry::GetMathVariantsSize(uint32_t aGlyphID, bool aVertical,
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uint16_t aSize)
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{
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NS_ASSERTION(mMathTable, "Math data has not yet been loaded. TryGetMathData() first.");
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return mMathTable->GetMathVariantsSize(aGlyphID, aVertical, aSize);
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}
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bool
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gfxFontEntry::GetMathVariantsParts(uint32_t aGlyphID, bool aVertical,
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uint32_t aGlyphs[4])
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{
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NS_ASSERTION(mMathTable, "Math data has not yet been loaded. TryGetMathData() first.");
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return mMathTable->GetMathVariantsParts(aGlyphID, aVertical, aGlyphs);
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}
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bool
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gfxFontEntry::TryGetColorGlyphs()
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{
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if (mCheckedForColorGlyph) {
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return (mCOLR && mCPAL);
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}
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mCheckedForColorGlyph = true;
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mCOLR = GetFontTable(TRUETYPE_TAG('C', 'O', 'L', 'R'));
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if (!mCOLR) {
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return false;
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}
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|
|
mCPAL = GetFontTable(TRUETYPE_TAG('C', 'P', 'A', 'L'));
|
|
if (!mCPAL) {
|
|
hb_blob_destroy(mCOLR);
|
|
mCOLR = nullptr;
|
|
return false;
|
|
}
|
|
|
|
// validation COLR and CPAL table
|
|
if (gfxFontUtils::ValidateColorGlyphs(mCOLR, mCPAL)) {
|
|
return true;
|
|
}
|
|
|
|
hb_blob_destroy(mCOLR);
|
|
hb_blob_destroy(mCPAL);
|
|
mCOLR = nullptr;
|
|
mCPAL = nullptr;
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* FontTableBlobData
|
|
*
|
|
* See FontTableHashEntry for the general strategy.
|
|
*/
|
|
|
|
class gfxFontEntry::FontTableBlobData {
|
|
public:
|
|
// Adopts the content of aBuffer.
|
|
explicit FontTableBlobData(FallibleTArray<uint8_t>& aBuffer)
|
|
: mHashtable(nullptr), mHashKey(0)
|
|
{
|
|
MOZ_COUNT_CTOR(FontTableBlobData);
|
|
mTableData.SwapElements(aBuffer);
|
|
}
|
|
|
|
~FontTableBlobData() {
|
|
MOZ_COUNT_DTOR(FontTableBlobData);
|
|
if (mHashtable && mHashKey) {
|
|
mHashtable->RemoveEntry(mHashKey);
|
|
}
|
|
}
|
|
|
|
// Useful for creating blobs
|
|
const char *GetTable() const
|
|
{
|
|
return reinterpret_cast<const char*>(mTableData.Elements());
|
|
}
|
|
uint32_t GetTableLength() const { return mTableData.Length(); }
|
|
|
|
// Tell this FontTableBlobData to remove the HashEntry when this is
|
|
// destroyed.
|
|
void ManageHashEntry(nsTHashtable<FontTableHashEntry> *aHashtable,
|
|
uint32_t aHashKey)
|
|
{
|
|
mHashtable = aHashtable;
|
|
mHashKey = aHashKey;
|
|
}
|
|
|
|
// Disconnect from the HashEntry (because the blob has already been
|
|
// removed from the hashtable).
|
|
void ForgetHashEntry()
|
|
{
|
|
mHashtable = nullptr;
|
|
mHashKey = 0;
|
|
}
|
|
|
|
size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const {
|
|
return mTableData.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
}
|
|
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
|
|
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
|
|
}
|
|
|
|
private:
|
|
// The font table data block, owned (via adoption)
|
|
FallibleTArray<uint8_t> mTableData;
|
|
|
|
// The blob destroy function needs to know the owning hashtable
|
|
// and the hashtable key, so that it can remove the entry.
|
|
nsTHashtable<FontTableHashEntry> *mHashtable;
|
|
uint32_t mHashKey;
|
|
|
|
// not implemented
|
|
FontTableBlobData(const FontTableBlobData&);
|
|
};
|
|
|
|
hb_blob_t *
|
|
gfxFontEntry::FontTableHashEntry::
|
|
ShareTableAndGetBlob(FallibleTArray<uint8_t>& aTable,
|
|
nsTHashtable<FontTableHashEntry> *aHashtable)
|
|
{
|
|
Clear();
|
|
// adopts elements of aTable
|
|
mSharedBlobData = new FontTableBlobData(aTable);
|
|
mBlob = hb_blob_create(mSharedBlobData->GetTable(),
|
|
mSharedBlobData->GetTableLength(),
|
|
HB_MEMORY_MODE_READONLY,
|
|
mSharedBlobData, DeleteFontTableBlobData);
|
|
if (!mSharedBlobData) {
|
|
// The FontTableBlobData was destroyed during hb_blob_create().
|
|
// The (empty) blob is still be held in the hashtable with a strong
|
|
// reference.
|
|
return hb_blob_reference(mBlob);
|
|
}
|
|
|
|
// Tell the FontTableBlobData to remove this hash entry when destroyed.
|
|
// The hashtable does not keep a strong reference.
|
|
mSharedBlobData->ManageHashEntry(aHashtable, GetKey());
|
|
return mBlob;
|
|
}
|
|
|
|
void
|
|
gfxFontEntry::FontTableHashEntry::Clear()
|
|
{
|
|
// If the FontTableBlobData is managing the hash entry, then the blob is
|
|
// not owned by this HashEntry; otherwise there is strong reference to the
|
|
// blob that must be removed.
|
|
if (mSharedBlobData) {
|
|
mSharedBlobData->ForgetHashEntry();
|
|
mSharedBlobData = nullptr;
|
|
} else if (mBlob) {
|
|
hb_blob_destroy(mBlob);
|
|
}
|
|
mBlob = nullptr;
|
|
}
|
|
|
|
// a hb_destroy_func for hb_blob_create
|
|
|
|
/* static */ void
|
|
gfxFontEntry::FontTableHashEntry::DeleteFontTableBlobData(void *aBlobData)
|
|
{
|
|
delete static_cast<FontTableBlobData*>(aBlobData);
|
|
}
|
|
|
|
hb_blob_t *
|
|
gfxFontEntry::FontTableHashEntry::GetBlob() const
|
|
{
|
|
return hb_blob_reference(mBlob);
|
|
}
|
|
|
|
bool
|
|
gfxFontEntry::GetExistingFontTable(uint32_t aTag, hb_blob_t **aBlob)
|
|
{
|
|
if (!mFontTableCache) {
|
|
// we do this here rather than on fontEntry construction
|
|
// because not all shapers will access the table cache at all
|
|
mFontTableCache = new nsTHashtable<FontTableHashEntry>(8);
|
|
}
|
|
|
|
FontTableHashEntry *entry = mFontTableCache->GetEntry(aTag);
|
|
if (!entry) {
|
|
return false;
|
|
}
|
|
|
|
*aBlob = entry->GetBlob();
|
|
return true;
|
|
}
|
|
|
|
hb_blob_t *
|
|
gfxFontEntry::ShareFontTableAndGetBlob(uint32_t aTag,
|
|
FallibleTArray<uint8_t>* aBuffer)
|
|
{
|
|
if (MOZ_UNLIKELY(!mFontTableCache)) {
|
|
// we do this here rather than on fontEntry construction
|
|
// because not all shapers will access the table cache at all
|
|
mFontTableCache = new nsTHashtable<FontTableHashEntry>(8);
|
|
}
|
|
|
|
FontTableHashEntry *entry = mFontTableCache->PutEntry(aTag);
|
|
if (MOZ_UNLIKELY(!entry)) { // OOM
|
|
return nullptr;
|
|
}
|
|
|
|
if (!aBuffer) {
|
|
// ensure the entry is null
|
|
entry->Clear();
|
|
return nullptr;
|
|
}
|
|
|
|
return entry->ShareTableAndGetBlob(*aBuffer, mFontTableCache);
|
|
}
|
|
|
|
static int
|
|
DirEntryCmp(const void* aKey, const void* aItem)
|
|
{
|
|
int32_t tag = *static_cast<const int32_t*>(aKey);
|
|
const TableDirEntry* entry = static_cast<const TableDirEntry*>(aItem);
|
|
return tag - int32_t(entry->tag);
|
|
}
|
|
|
|
hb_blob_t*
|
|
gfxFontEntry::GetTableFromFontData(const void* aFontData, uint32_t aTableTag)
|
|
{
|
|
const SFNTHeader* header =
|
|
reinterpret_cast<const SFNTHeader*>(aFontData);
|
|
const TableDirEntry* dir =
|
|
reinterpret_cast<const TableDirEntry*>(header + 1);
|
|
dir = static_cast<const TableDirEntry*>
|
|
(bsearch(&aTableTag, dir, uint16_t(header->numTables),
|
|
sizeof(TableDirEntry), DirEntryCmp));
|
|
if (dir) {
|
|
return hb_blob_create(reinterpret_cast<const char*>(aFontData) +
|
|
dir->offset, dir->length,
|
|
HB_MEMORY_MODE_READONLY, nullptr, nullptr);
|
|
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
already_AddRefed<gfxCharacterMap>
|
|
gfxFontEntry::GetCMAPFromFontInfo(FontInfoData *aFontInfoData,
|
|
uint32_t& aUVSOffset,
|
|
bool& aSymbolFont)
|
|
{
|
|
if (!aFontInfoData || !aFontInfoData->mLoadCmaps) {
|
|
return nullptr;
|
|
}
|
|
|
|
return aFontInfoData->GetCMAP(mName, aUVSOffset, aSymbolFont);
|
|
}
|
|
|
|
hb_blob_t *
|
|
gfxFontEntry::GetFontTable(uint32_t aTag)
|
|
{
|
|
hb_blob_t *blob;
|
|
if (GetExistingFontTable(aTag, &blob)) {
|
|
return blob;
|
|
}
|
|
|
|
FallibleTArray<uint8_t> buffer;
|
|
bool haveTable = NS_SUCCEEDED(CopyFontTable(aTag, buffer));
|
|
|
|
return ShareFontTableAndGetBlob(aTag, haveTable ? &buffer : nullptr);
|
|
}
|
|
|
|
// callback for HarfBuzz to get a font table (in hb_blob_t form)
|
|
// from the font entry (passed as aUserData)
|
|
/*static*/ hb_blob_t *
|
|
gfxFontEntry::HBGetTable(hb_face_t *face, uint32_t aTag, void *aUserData)
|
|
{
|
|
gfxFontEntry *fontEntry = static_cast<gfxFontEntry*>(aUserData);
|
|
|
|
// bug 589682 - ignore the GDEF table in buggy fonts (applies to
|
|
// Italic and BoldItalic faces of Times New Roman)
|
|
if (aTag == TRUETYPE_TAG('G','D','E','F') &&
|
|
fontEntry->IgnoreGDEF()) {
|
|
return nullptr;
|
|
}
|
|
|
|
// bug 721719 - ignore the GSUB table in buggy fonts (applies to Roboto,
|
|
// at least on some Android ICS devices; set in gfxFT2FontList.cpp)
|
|
if (aTag == TRUETYPE_TAG('G','S','U','B') &&
|
|
fontEntry->IgnoreGSUB()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return fontEntry->GetFontTable(aTag);
|
|
}
|
|
|
|
/*static*/ void
|
|
gfxFontEntry::HBFaceDeletedCallback(void *aUserData)
|
|
{
|
|
gfxFontEntry *fe = static_cast<gfxFontEntry*>(aUserData);
|
|
fe->ForgetHBFace();
|
|
}
|
|
|
|
void
|
|
gfxFontEntry::ForgetHBFace()
|
|
{
|
|
mHBFace = nullptr;
|
|
}
|
|
|
|
hb_face_t*
|
|
gfxFontEntry::GetHBFace()
|
|
{
|
|
if (!mHBFace) {
|
|
mHBFace = hb_face_create_for_tables(HBGetTable, this,
|
|
HBFaceDeletedCallback);
|
|
return mHBFace;
|
|
}
|
|
return hb_face_reference(mHBFace);
|
|
}
|
|
|
|
/*static*/ const void*
|
|
gfxFontEntry::GrGetTable(const void *aAppFaceHandle, unsigned int aName,
|
|
size_t *aLen)
|
|
{
|
|
gfxFontEntry *fontEntry =
|
|
static_cast<gfxFontEntry*>(const_cast<void*>(aAppFaceHandle));
|
|
hb_blob_t *blob = fontEntry->GetFontTable(aName);
|
|
if (blob) {
|
|
unsigned int blobLength;
|
|
const void *tableData = hb_blob_get_data(blob, &blobLength);
|
|
fontEntry->mGrTableMap->Put(tableData, blob);
|
|
*aLen = blobLength;
|
|
return tableData;
|
|
}
|
|
*aLen = 0;
|
|
return nullptr;
|
|
}
|
|
|
|
/*static*/ void
|
|
gfxFontEntry::GrReleaseTable(const void *aAppFaceHandle,
|
|
const void *aTableBuffer)
|
|
{
|
|
gfxFontEntry *fontEntry =
|
|
static_cast<gfxFontEntry*>(const_cast<void*>(aAppFaceHandle));
|
|
void *data;
|
|
if (fontEntry->mGrTableMap->Get(aTableBuffer, &data)) {
|
|
fontEntry->mGrTableMap->Remove(aTableBuffer);
|
|
hb_blob_destroy(static_cast<hb_blob_t*>(data));
|
|
}
|
|
}
|
|
|
|
gr_face*
|
|
gfxFontEntry::GetGrFace()
|
|
{
|
|
if (!mGrFaceInitialized) {
|
|
gr_face_ops faceOps = {
|
|
sizeof(gr_face_ops),
|
|
GrGetTable,
|
|
GrReleaseTable
|
|
};
|
|
mGrTableMap = new nsDataHashtable<nsPtrHashKey<const void>,void*>;
|
|
mGrFace = gr_make_face_with_ops(this, &faceOps, gr_face_default);
|
|
mGrFaceInitialized = true;
|
|
}
|
|
++mGrFaceRefCnt;
|
|
return mGrFace;
|
|
}
|
|
|
|
void
|
|
gfxFontEntry::ReleaseGrFace(gr_face *aFace)
|
|
{
|
|
MOZ_ASSERT(aFace == mGrFace); // sanity-check
|
|
MOZ_ASSERT(mGrFaceRefCnt > 0);
|
|
if (--mGrFaceRefCnt == 0) {
|
|
gr_face_destroy(mGrFace);
|
|
mGrFace = nullptr;
|
|
mGrFaceInitialized = false;
|
|
delete mGrTableMap;
|
|
mGrTableMap = nullptr;
|
|
}
|
|
}
|
|
|
|
void
|
|
gfxFontEntry::DisconnectSVG()
|
|
{
|
|
if (mSVGInitialized && mSVGGlyphs) {
|
|
mSVGGlyphs = nullptr;
|
|
mSVGInitialized = false;
|
|
}
|
|
}
|
|
|
|
bool
|
|
gfxFontEntry::HasFontTable(uint32_t aTableTag)
|
|
{
|
|
AutoTable table(this, aTableTag);
|
|
return table && hb_blob_get_length(table) > 0;
|
|
}
|
|
|
|
void
|
|
gfxFontEntry::CheckForGraphiteTables()
|
|
{
|
|
mHasGraphiteTables = HasFontTable(TRUETYPE_TAG('S','i','l','f'));
|
|
}
|
|
|
|
bool
|
|
gfxFontEntry::HasGraphiteSpaceContextuals()
|
|
{
|
|
if (!mGraphiteSpaceContextualsInitialized) {
|
|
gr_face* face = GetGrFace();
|
|
if (face) {
|
|
const gr_faceinfo* faceInfo = gr_face_info(face, 0);
|
|
mHasGraphiteSpaceContextuals =
|
|
faceInfo->space_contextuals != gr_faceinfo::gr_space_none;
|
|
ReleaseGrFace(face);
|
|
}
|
|
mGraphiteSpaceContextualsInitialized = true;
|
|
}
|
|
return mHasGraphiteSpaceContextuals;
|
|
}
|
|
|
|
#define FEATURE_SCRIPT_MASK 0x000000ff // script index replaces low byte of tag
|
|
|
|
// check for too many script codes
|
|
PR_STATIC_ASSERT(MOZ_NUM_SCRIPT_CODES <= FEATURE_SCRIPT_MASK);
|
|
|
|
// high-order three bytes of tag with script in low-order byte
|
|
#define SCRIPT_FEATURE(s,tag) (((~FEATURE_SCRIPT_MASK) & (tag)) | \
|
|
((FEATURE_SCRIPT_MASK) & (s)))
|
|
|
|
bool
|
|
gfxFontEntry::SupportsOpenTypeFeature(int32_t aScript, uint32_t aFeatureTag)
|
|
{
|
|
if (!mSupportedFeatures) {
|
|
mSupportedFeatures = new nsDataHashtable<nsUint32HashKey,bool>();
|
|
}
|
|
|
|
// note: high-order three bytes *must* be unique for each feature
|
|
// listed below (see SCRIPT_FEATURE macro def'n)
|
|
NS_ASSERTION(aFeatureTag == HB_TAG('s','m','c','p') ||
|
|
aFeatureTag == HB_TAG('c','2','s','c') ||
|
|
aFeatureTag == HB_TAG('p','c','a','p') ||
|
|
aFeatureTag == HB_TAG('c','2','p','c') ||
|
|
aFeatureTag == HB_TAG('s','u','p','s') ||
|
|
aFeatureTag == HB_TAG('s','u','b','s') ||
|
|
aFeatureTag == HB_TAG('v','e','r','t'),
|
|
"use of unknown feature tag");
|
|
|
|
// note: graphite feature support uses the last script index
|
|
NS_ASSERTION(aScript < FEATURE_SCRIPT_MASK - 1,
|
|
"need to bump the size of the feature shift");
|
|
|
|
uint32_t scriptFeature = SCRIPT_FEATURE(aScript, aFeatureTag);
|
|
bool result;
|
|
if (mSupportedFeatures->Get(scriptFeature, &result)) {
|
|
return result;
|
|
}
|
|
|
|
result = false;
|
|
|
|
hb_face_t *face = GetHBFace();
|
|
|
|
if (hb_ot_layout_has_substitution(face)) {
|
|
hb_script_t hbScript =
|
|
gfxHarfBuzzShaper::GetHBScriptUsedForShaping(aScript);
|
|
|
|
// Get the OpenType tag(s) that match this script code
|
|
hb_tag_t scriptTags[4] = {
|
|
HB_TAG_NONE,
|
|
HB_TAG_NONE,
|
|
HB_TAG_NONE,
|
|
HB_TAG_NONE
|
|
};
|
|
hb_ot_tags_from_script(hbScript, &scriptTags[0], &scriptTags[1]);
|
|
|
|
// Replace the first remaining NONE with DEFAULT
|
|
hb_tag_t* scriptTag = &scriptTags[0];
|
|
while (*scriptTag != HB_TAG_NONE) {
|
|
++scriptTag;
|
|
}
|
|
*scriptTag = HB_OT_TAG_DEFAULT_SCRIPT;
|
|
|
|
// Now check for 'smcp' under the first of those scripts that is present
|
|
const hb_tag_t kGSUB = HB_TAG('G','S','U','B');
|
|
scriptTag = &scriptTags[0];
|
|
while (*scriptTag != HB_TAG_NONE) {
|
|
unsigned int scriptIndex;
|
|
if (hb_ot_layout_table_find_script(face, kGSUB, *scriptTag,
|
|
&scriptIndex)) {
|
|
if (hb_ot_layout_language_find_feature(face, kGSUB,
|
|
scriptIndex,
|
|
HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX,
|
|
aFeatureTag, nullptr)) {
|
|
result = true;
|
|
}
|
|
break;
|
|
}
|
|
++scriptTag;
|
|
}
|
|
}
|
|
|
|
hb_face_destroy(face);
|
|
|
|
mSupportedFeatures->Put(scriptFeature, result);
|
|
|
|
return result;
|
|
}
|
|
|
|
const hb_set_t*
|
|
gfxFontEntry::InputsForOpenTypeFeature(int32_t aScript, uint32_t aFeatureTag)
|
|
{
|
|
if (!mFeatureInputs) {
|
|
mFeatureInputs = new nsDataHashtable<nsUint32HashKey,hb_set_t*>();
|
|
}
|
|
|
|
NS_ASSERTION(aFeatureTag == HB_TAG('s','u','p','s') ||
|
|
aFeatureTag == HB_TAG('s','u','b','s'),
|
|
"use of unknown feature tag");
|
|
|
|
uint32_t scriptFeature = SCRIPT_FEATURE(aScript, aFeatureTag);
|
|
hb_set_t *inputGlyphs;
|
|
if (mFeatureInputs->Get(scriptFeature, &inputGlyphs)) {
|
|
return inputGlyphs;
|
|
}
|
|
|
|
inputGlyphs = hb_set_create();
|
|
|
|
hb_face_t *face = GetHBFace();
|
|
|
|
if (hb_ot_layout_has_substitution(face)) {
|
|
hb_script_t hbScript =
|
|
gfxHarfBuzzShaper::GetHBScriptUsedForShaping(aScript);
|
|
|
|
// Get the OpenType tag(s) that match this script code
|
|
hb_tag_t scriptTags[4] = {
|
|
HB_TAG_NONE,
|
|
HB_TAG_NONE,
|
|
HB_TAG_NONE,
|
|
HB_TAG_NONE
|
|
};
|
|
hb_ot_tags_from_script(hbScript, &scriptTags[0], &scriptTags[1]);
|
|
|
|
// Replace the first remaining NONE with DEFAULT
|
|
hb_tag_t* scriptTag = &scriptTags[0];
|
|
while (*scriptTag != HB_TAG_NONE) {
|
|
++scriptTag;
|
|
}
|
|
*scriptTag = HB_OT_TAG_DEFAULT_SCRIPT;
|
|
|
|
const hb_tag_t kGSUB = HB_TAG('G','S','U','B');
|
|
hb_tag_t features[2] = { aFeatureTag, HB_TAG_NONE };
|
|
hb_set_t *featurelookups = hb_set_create();
|
|
hb_ot_layout_collect_lookups(face, kGSUB, scriptTags, nullptr,
|
|
features, featurelookups);
|
|
hb_codepoint_t index = -1;
|
|
while (hb_set_next(featurelookups, &index)) {
|
|
hb_ot_layout_lookup_collect_glyphs(face, kGSUB, index,
|
|
nullptr, inputGlyphs,
|
|
nullptr, nullptr);
|
|
}
|
|
hb_set_destroy(featurelookups);
|
|
}
|
|
|
|
hb_face_destroy(face);
|
|
|
|
mFeatureInputs->Put(scriptFeature, inputGlyphs);
|
|
return inputGlyphs;
|
|
}
|
|
|
|
bool
|
|
gfxFontEntry::SupportsGraphiteFeature(uint32_t aFeatureTag)
|
|
{
|
|
if (!mSupportedFeatures) {
|
|
mSupportedFeatures = new nsDataHashtable<nsUint32HashKey,bool>();
|
|
}
|
|
|
|
// note: high-order three bytes *must* be unique for each feature
|
|
// listed below (see SCRIPT_FEATURE macro def'n)
|
|
NS_ASSERTION(aFeatureTag == HB_TAG('s','m','c','p') ||
|
|
aFeatureTag == HB_TAG('c','2','s','c') ||
|
|
aFeatureTag == HB_TAG('p','c','a','p') ||
|
|
aFeatureTag == HB_TAG('c','2','p','c') ||
|
|
aFeatureTag == HB_TAG('s','u','p','s') ||
|
|
aFeatureTag == HB_TAG('s','u','b','s'),
|
|
"use of unknown feature tag");
|
|
|
|
// graphite feature check uses the last script slot
|
|
uint32_t scriptFeature = SCRIPT_FEATURE(FEATURE_SCRIPT_MASK, aFeatureTag);
|
|
bool result;
|
|
if (mSupportedFeatures->Get(scriptFeature, &result)) {
|
|
return result;
|
|
}
|
|
|
|
gr_face* face = GetGrFace();
|
|
result = gr_face_find_fref(face, aFeatureTag) != nullptr;
|
|
ReleaseGrFace(face);
|
|
|
|
mSupportedFeatures->Put(scriptFeature, result);
|
|
|
|
return result;
|
|
}
|
|
|
|
bool
|
|
gfxFontEntry::GetColorLayersInfo(uint32_t aGlyphId,
|
|
nsTArray<uint16_t>& aLayerGlyphs,
|
|
nsTArray<mozilla::gfx::Color>& aLayerColors)
|
|
{
|
|
return gfxFontUtils::GetColorGlyphLayers(mCOLR,
|
|
mCPAL,
|
|
aGlyphId,
|
|
aLayerGlyphs,
|
|
aLayerColors);
|
|
}
|
|
|
|
size_t
|
|
gfxFontEntry::FontTableHashEntry::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
size_t n = 0;
|
|
if (mBlob) {
|
|
n += aMallocSizeOf(mBlob);
|
|
}
|
|
if (mSharedBlobData) {
|
|
n += mSharedBlobData->SizeOfIncludingThis(aMallocSizeOf);
|
|
}
|
|
return n;
|
|
}
|
|
|
|
void
|
|
gfxFontEntry::AddSizeOfExcludingThis(MallocSizeOf aMallocSizeOf,
|
|
FontListSizes* aSizes) const
|
|
{
|
|
aSizes->mFontListSize += mName.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
|
|
|
|
// cmaps are shared so only non-shared cmaps are included here
|
|
if (mCharacterMap && mCharacterMap->mBuildOnTheFly) {
|
|
aSizes->mCharMapsSize +=
|
|
mCharacterMap->SizeOfIncludingThis(aMallocSizeOf);
|
|
}
|
|
if (mFontTableCache) {
|
|
aSizes->mFontTableCacheSize +=
|
|
mFontTableCache->SizeOfIncludingThis(aMallocSizeOf);
|
|
}
|
|
}
|
|
|
|
void
|
|
gfxFontEntry::AddSizeOfIncludingThis(MallocSizeOf aMallocSizeOf,
|
|
FontListSizes* aSizes) const
|
|
{
|
|
aSizes->mFontListSize += aMallocSizeOf(this);
|
|
AddSizeOfExcludingThis(aMallocSizeOf, aSizes);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// class gfxFontFamily
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
// we consider faces with mStandardFace == true to be "less than" those with false,
|
|
// because during style matching, earlier entries are tried first
|
|
class FontEntryStandardFaceComparator {
|
|
public:
|
|
bool Equals(const nsRefPtr<gfxFontEntry>& a, const nsRefPtr<gfxFontEntry>& b) const {
|
|
return a->mStandardFace == b->mStandardFace;
|
|
}
|
|
bool LessThan(const nsRefPtr<gfxFontEntry>& a, const nsRefPtr<gfxFontEntry>& b) const {
|
|
return (a->mStandardFace == true && b->mStandardFace == false);
|
|
}
|
|
};
|
|
|
|
void
|
|
gfxFontFamily::SortAvailableFonts()
|
|
{
|
|
mAvailableFonts.Sort(FontEntryStandardFaceComparator());
|
|
}
|
|
|
|
bool
|
|
gfxFontFamily::HasOtherFamilyNames()
|
|
{
|
|
// need to read in other family names to determine this
|
|
if (!mOtherFamilyNamesInitialized) {
|
|
ReadOtherFamilyNames(gfxPlatformFontList::PlatformFontList()); // sets mHasOtherFamilyNames
|
|
}
|
|
return mHasOtherFamilyNames;
|
|
}
|
|
|
|
gfxFontEntry*
|
|
gfxFontFamily::FindFontForStyle(const gfxFontStyle& aFontStyle,
|
|
bool& aNeedsSyntheticBold)
|
|
{
|
|
nsAutoTArray<gfxFontEntry*,4> matched;
|
|
FindAllFontsForStyle(aFontStyle, matched, aNeedsSyntheticBold);
|
|
if (!matched.IsEmpty()) {
|
|
return matched[0];
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
static inline uint32_t
|
|
StyleStretchDistance(gfxFontEntry *aFontEntry, bool aTargetItalic,
|
|
int16_t aTargetStretch)
|
|
{
|
|
// Compute a measure of the "distance" between the requested style
|
|
// and the given fontEntry,
|
|
// considering italicness and font-stretch but not weight.
|
|
|
|
int32_t distance = 0;
|
|
if (aTargetStretch != aFontEntry->mStretch) {
|
|
// stretch values are in the range -4 .. +4
|
|
// if aTargetStretch is positive, we prefer more-positive values;
|
|
// if zero or negative, prefer more-negative
|
|
if (aTargetStretch > 0) {
|
|
distance = (aFontEntry->mStretch - aTargetStretch) * 2;
|
|
} else {
|
|
distance = (aTargetStretch - aFontEntry->mStretch) * 2;
|
|
}
|
|
// if the computed "distance" here is negative, it means that
|
|
// aFontEntry lies in the "non-preferred" direction from aTargetStretch,
|
|
// so we treat that as larger than any preferred-direction distance
|
|
// (max possible is 8) by adding an extra 10 to the absolute value
|
|
if (distance < 0) {
|
|
distance = -distance + 10;
|
|
}
|
|
}
|
|
if (aFontEntry->IsItalic() != aTargetItalic) {
|
|
distance += 1;
|
|
}
|
|
return uint32_t(distance);
|
|
}
|
|
|
|
#define NON_DESIRED_DIRECTION_DISTANCE 1000
|
|
#define MAX_WEIGHT_DISTANCE 2000
|
|
|
|
// CSS currently limits font weights to multiples of 100 but the weight
|
|
// matching code below does not assume this.
|
|
//
|
|
// Calculate weight values with range (0..1000). In general, heavier weights
|
|
// match towards even heavier weights while lighter weights match towards even
|
|
// lighter weights. Target weight values in the range [400..500] are special,
|
|
// since they will first match up to 500, then down to 0, then up again
|
|
// towards 999.
|
|
//
|
|
// Example: with target 600 and font weight 800, distance will be 200. With
|
|
// target 300 and font weight 600, distance will be 1300, since heavier weights
|
|
// are farther away than lighter weights. If the target is 5 and the font weight
|
|
// 995, the distance would be 1990 for the same reason.
|
|
|
|
static inline uint32_t
|
|
WeightDistance(uint32_t aTargetWeight, uint32_t aFontWeight)
|
|
{
|
|
// Compute a measure of the "distance" between the requested
|
|
// weight and the given fontEntry
|
|
|
|
int32_t distance = 0, addedDistance = 0;
|
|
if (aTargetWeight != aFontWeight) {
|
|
if (aTargetWeight > 500) {
|
|
distance = aFontWeight - aTargetWeight;
|
|
} else if (aTargetWeight < 400) {
|
|
distance = aTargetWeight - aFontWeight;
|
|
} else {
|
|
// special case - target is between 400 and 500
|
|
|
|
// font weights between 400 and 500 are close
|
|
if (aFontWeight >= 400 && aFontWeight <= 500) {
|
|
if (aFontWeight < aTargetWeight) {
|
|
distance = 500 - aFontWeight;
|
|
} else {
|
|
distance = aFontWeight - aTargetWeight;
|
|
}
|
|
} else {
|
|
// font weights outside use rule for target weights < 400 with
|
|
// added distance to separate from font weights in
|
|
// the [400..500] range
|
|
distance = aTargetWeight - aFontWeight;
|
|
addedDistance = 100;
|
|
}
|
|
}
|
|
if (distance < 0) {
|
|
distance = -distance + NON_DESIRED_DIRECTION_DISTANCE;
|
|
}
|
|
distance += addedDistance;
|
|
}
|
|
return uint32_t(distance);
|
|
}
|
|
|
|
void
|
|
gfxFontFamily::FindAllFontsForStyle(const gfxFontStyle& aFontStyle,
|
|
nsTArray<gfxFontEntry*>& aFontEntryList,
|
|
bool& aNeedsSyntheticBold)
|
|
{
|
|
if (!mHasStyles) {
|
|
FindStyleVariations(); // collect faces for the family, if not already done
|
|
}
|
|
|
|
NS_ASSERTION(mAvailableFonts.Length() > 0, "font family with no faces!");
|
|
NS_ASSERTION(aFontEntryList.IsEmpty(), "non-empty fontlist passed in");
|
|
|
|
aNeedsSyntheticBold = false;
|
|
|
|
int8_t baseWeight = aFontStyle.ComputeWeight();
|
|
bool wantBold = baseWeight >= 6;
|
|
gfxFontEntry *fe = nullptr;
|
|
|
|
// If the family has only one face, we simply return it; no further
|
|
// checking needed
|
|
uint32_t count = mAvailableFonts.Length();
|
|
if (count == 1) {
|
|
fe = mAvailableFonts[0];
|
|
aNeedsSyntheticBold =
|
|
wantBold && !fe->IsBold() && aFontStyle.allowSyntheticWeight;
|
|
aFontEntryList.AppendElement(fe);
|
|
return;
|
|
}
|
|
|
|
bool wantItalic = (aFontStyle.style &
|
|
(NS_FONT_STYLE_ITALIC | NS_FONT_STYLE_OBLIQUE)) != 0;
|
|
|
|
// Most families are "simple", having just Regular/Bold/Italic/BoldItalic,
|
|
// or some subset of these. In this case, we have exactly 4 entries in mAvailableFonts,
|
|
// stored in the above order; note that some of the entries may be nullptr.
|
|
// We can then pick the required entry based on whether the request is for
|
|
// bold or non-bold, italic or non-italic, without running the more complex
|
|
// matching algorithm used for larger families with many weights and/or widths.
|
|
|
|
if (mIsSimpleFamily) {
|
|
// Family has no more than the "standard" 4 faces, at fixed indexes;
|
|
// calculate which one we want.
|
|
// Note that we cannot simply return it as not all 4 faces are necessarily present.
|
|
uint8_t faceIndex = (wantItalic ? kItalicMask : 0) |
|
|
(wantBold ? kBoldMask : 0);
|
|
|
|
// if the desired style is available, return it directly
|
|
fe = mAvailableFonts[faceIndex];
|
|
if (fe) {
|
|
// no need to set aNeedsSyntheticBold here as we matched the boldness request
|
|
aFontEntryList.AppendElement(fe);
|
|
return;
|
|
}
|
|
|
|
// order to check fallback faces in a simple family, depending on requested style
|
|
static const uint8_t simpleFallbacks[4][3] = {
|
|
{ kBoldFaceIndex, kItalicFaceIndex, kBoldItalicFaceIndex }, // fallbacks for Regular
|
|
{ kRegularFaceIndex, kBoldItalicFaceIndex, kItalicFaceIndex },// Bold
|
|
{ kBoldItalicFaceIndex, kRegularFaceIndex, kBoldFaceIndex }, // Italic
|
|
{ kItalicFaceIndex, kBoldFaceIndex, kRegularFaceIndex } // BoldItalic
|
|
};
|
|
const uint8_t *order = simpleFallbacks[faceIndex];
|
|
|
|
for (uint8_t trial = 0; trial < 3; ++trial) {
|
|
// check remaining faces in order of preference to find the first that actually exists
|
|
fe = mAvailableFonts[order[trial]];
|
|
if (fe) {
|
|
aNeedsSyntheticBold =
|
|
wantBold && !fe->IsBold() &&
|
|
aFontStyle.allowSyntheticWeight;
|
|
aFontEntryList.AppendElement(fe);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// this can't happen unless we have totally broken the font-list manager!
|
|
NS_NOTREACHED("no face found in simple font family!");
|
|
}
|
|
|
|
// Pick the font(s) that are closest to the desired weight, style, and
|
|
// stretch. Iterate over all fonts, measuring the weight/style distance.
|
|
// Because of unicode-range values, there may be more than one font for a
|
|
// given but the 99% use case is only a single font entry per
|
|
// weight/style/stretch distance value. To optimize this, only add entries
|
|
// to the matched font array when another entry already has the same
|
|
// weight/style/stretch distance and add the last matched font entry. For
|
|
// normal platform fonts with a single font entry for each
|
|
// weight/style/stretch combination, only the last matched font entry will
|
|
// be added.
|
|
|
|
uint32_t minDistance = 0xffffffff;
|
|
gfxFontEntry* matched = nullptr;
|
|
// iterate in forward order so that faces like 'Bold' are matched before
|
|
// matching style distance faces such as 'Bold Outline' (see bug 1185812)
|
|
for (uint32_t i = 0; i < count; i++) {
|
|
fe = mAvailableFonts[i];
|
|
uint32_t distance =
|
|
WeightDistance(aFontStyle.weight, fe->Weight()) +
|
|
(StyleStretchDistance(fe, wantItalic, aFontStyle.stretch) *
|
|
MAX_WEIGHT_DISTANCE);
|
|
if (distance < minDistance) {
|
|
matched = fe;
|
|
if (!aFontEntryList.IsEmpty()) {
|
|
aFontEntryList.Clear();
|
|
}
|
|
minDistance = distance;
|
|
} else if (distance == minDistance) {
|
|
if (matched) {
|
|
aFontEntryList.AppendElement(matched);
|
|
}
|
|
matched = fe;
|
|
}
|
|
}
|
|
|
|
NS_ASSERTION(matched, "didn't match a font within a family");
|
|
|
|
if (matched) {
|
|
aFontEntryList.AppendElement(matched);
|
|
if (!matched->IsBold() && aFontStyle.weight >= 600 &&
|
|
aFontStyle.allowSyntheticWeight) {
|
|
aNeedsSyntheticBold = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
gfxFontFamily::CheckForSimpleFamily()
|
|
{
|
|
// already checked this family
|
|
if (mIsSimpleFamily) {
|
|
return;
|
|
};
|
|
|
|
uint32_t count = mAvailableFonts.Length();
|
|
if (count > 4 || count == 0) {
|
|
return; // can't be "simple" if there are >4 faces;
|
|
// if none then the family is unusable anyway
|
|
}
|
|
|
|
if (count == 1) {
|
|
mIsSimpleFamily = true;
|
|
return;
|
|
}
|
|
|
|
int16_t firstStretch = mAvailableFonts[0]->Stretch();
|
|
|
|
gfxFontEntry *faces[4] = { 0 };
|
|
for (uint8_t i = 0; i < count; ++i) {
|
|
gfxFontEntry *fe = mAvailableFonts[i];
|
|
if (fe->Stretch() != firstStretch) {
|
|
return; // font-stretch doesn't match, don't treat as simple family
|
|
}
|
|
uint8_t faceIndex = (fe->IsItalic() ? kItalicMask : 0) |
|
|
(fe->Weight() >= 600 ? kBoldMask : 0);
|
|
if (faces[faceIndex]) {
|
|
return; // two faces resolve to the same slot; family isn't "simple"
|
|
}
|
|
faces[faceIndex] = fe;
|
|
}
|
|
|
|
// we have successfully slotted the available faces into the standard
|
|
// 4-face framework
|
|
mAvailableFonts.SetLength(4);
|
|
for (uint8_t i = 0; i < 4; ++i) {
|
|
if (mAvailableFonts[i].get() != faces[i]) {
|
|
mAvailableFonts[i].swap(faces[i]);
|
|
}
|
|
}
|
|
|
|
mIsSimpleFamily = true;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
bool
|
|
gfxFontFamily::ContainsFace(gfxFontEntry* aFontEntry) {
|
|
uint32_t i, numFonts = mAvailableFonts.Length();
|
|
for (i = 0; i < numFonts; i++) {
|
|
if (mAvailableFonts[i] == aFontEntry) {
|
|
return true;
|
|
}
|
|
// userfonts contain the actual real font entry
|
|
if (mAvailableFonts[i] && mAvailableFonts[i]->mIsUserFontContainer) {
|
|
gfxUserFontEntry* ufe =
|
|
static_cast<gfxUserFontEntry*>(mAvailableFonts[i].get());
|
|
if (ufe->GetPlatformFontEntry() == aFontEntry) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
void gfxFontFamily::LocalizedName(nsAString& aLocalizedName)
|
|
{
|
|
// just return the primary name; subclasses should override
|
|
aLocalizedName = mName;
|
|
}
|
|
|
|
// metric for how close a given font matches a style
|
|
static int32_t
|
|
CalcStyleMatch(gfxFontEntry *aFontEntry, const gfxFontStyle *aStyle)
|
|
{
|
|
int32_t rank = 0;
|
|
if (aStyle) {
|
|
// italics
|
|
bool wantItalic =
|
|
(aStyle->style & (NS_FONT_STYLE_ITALIC | NS_FONT_STYLE_OBLIQUE)) != 0;
|
|
if (aFontEntry->IsItalic() == wantItalic) {
|
|
rank += 10;
|
|
}
|
|
|
|
// measure of closeness of weight to the desired value
|
|
rank += 9 - DeprecatedAbs(aFontEntry->Weight() / 100 - aStyle->ComputeWeight());
|
|
} else {
|
|
// if no font to match, prefer non-bold, non-italic fonts
|
|
if (!aFontEntry->IsItalic()) {
|
|
rank += 3;
|
|
}
|
|
if (!aFontEntry->IsBold()) {
|
|
rank += 2;
|
|
}
|
|
}
|
|
|
|
return rank;
|
|
}
|
|
|
|
#define RANK_MATCHED_CMAP 20
|
|
|
|
void
|
|
gfxFontFamily::FindFontForChar(GlobalFontMatch *aMatchData)
|
|
{
|
|
if (mFamilyCharacterMapInitialized && !TestCharacterMap(aMatchData->mCh)) {
|
|
// none of the faces in the family support the required char,
|
|
// so bail out immediately
|
|
return;
|
|
}
|
|
|
|
bool needsBold;
|
|
gfxFontEntry *fe =
|
|
FindFontForStyle(aMatchData->mStyle ? *aMatchData->mStyle
|
|
: gfxFontStyle(),
|
|
needsBold);
|
|
|
|
if (fe && !fe->SkipDuringSystemFallback()) {
|
|
int32_t rank = 0;
|
|
|
|
if (fe->HasCharacter(aMatchData->mCh)) {
|
|
rank += RANK_MATCHED_CMAP;
|
|
aMatchData->mCount++;
|
|
|
|
PRLogModuleInfo *log = gfxPlatform::GetLog(eGfxLog_textrun);
|
|
|
|
if (MOZ_UNLIKELY(MOZ_LOG_TEST(log, LogLevel::Debug))) {
|
|
uint32_t unicodeRange = FindCharUnicodeRange(aMatchData->mCh);
|
|
uint32_t script = GetScriptCode(aMatchData->mCh);
|
|
MOZ_LOG(log, LogLevel::Debug,\
|
|
("(textrun-systemfallback-fonts) char: u+%6.6x "
|
|
"unicode-range: %d script: %d match: [%s]\n",
|
|
aMatchData->mCh,
|
|
unicodeRange, script,
|
|
NS_ConvertUTF16toUTF8(fe->Name()).get()));
|
|
}
|
|
}
|
|
|
|
aMatchData->mCmapsTested++;
|
|
if (rank == 0) {
|
|
return;
|
|
}
|
|
|
|
// omitting from original windows code -- family name, lang group, pitch
|
|
// not available in current FontEntry implementation
|
|
rank += CalcStyleMatch(fe, aMatchData->mStyle);
|
|
|
|
// xxx - add whether AAT font with morphing info for specific lang groups
|
|
|
|
if (rank > aMatchData->mMatchRank
|
|
|| (rank == aMatchData->mMatchRank &&
|
|
Compare(fe->Name(), aMatchData->mBestMatch->Name()) > 0))
|
|
{
|
|
aMatchData->mBestMatch = fe;
|
|
aMatchData->mMatchedFamily = this;
|
|
aMatchData->mMatchRank = rank;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
gfxFontFamily::SearchAllFontsForChar(GlobalFontMatch *aMatchData)
|
|
{
|
|
uint32_t i, numFonts = mAvailableFonts.Length();
|
|
for (i = 0; i < numFonts; i++) {
|
|
gfxFontEntry *fe = mAvailableFonts[i];
|
|
if (fe && fe->HasCharacter(aMatchData->mCh)) {
|
|
int32_t rank = RANK_MATCHED_CMAP;
|
|
rank += CalcStyleMatch(fe, aMatchData->mStyle);
|
|
if (rank > aMatchData->mMatchRank
|
|
|| (rank == aMatchData->mMatchRank &&
|
|
Compare(fe->Name(), aMatchData->mBestMatch->Name()) > 0))
|
|
{
|
|
aMatchData->mBestMatch = fe;
|
|
aMatchData->mMatchedFamily = this;
|
|
aMatchData->mMatchRank = rank;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*static*/ void
|
|
gfxFontFamily::ReadOtherFamilyNamesForFace(const nsAString& aFamilyName,
|
|
const char *aNameData,
|
|
uint32_t aDataLength,
|
|
nsTArray<nsString>& aOtherFamilyNames,
|
|
bool useFullName)
|
|
{
|
|
const gfxFontUtils::NameHeader *nameHeader =
|
|
reinterpret_cast<const gfxFontUtils::NameHeader*>(aNameData);
|
|
|
|
uint32_t nameCount = nameHeader->count;
|
|
if (nameCount * sizeof(gfxFontUtils::NameRecord) > aDataLength) {
|
|
NS_WARNING("invalid font (name records)");
|
|
return;
|
|
}
|
|
|
|
const gfxFontUtils::NameRecord *nameRecord =
|
|
reinterpret_cast<const gfxFontUtils::NameRecord*>(aNameData + sizeof(gfxFontUtils::NameHeader));
|
|
uint32_t stringsBase = uint32_t(nameHeader->stringOffset);
|
|
|
|
for (uint32_t i = 0; i < nameCount; i++, nameRecord++) {
|
|
uint32_t nameLen = nameRecord->length;
|
|
uint32_t nameOff = nameRecord->offset; // offset from base of string storage
|
|
|
|
if (stringsBase + nameOff + nameLen > aDataLength) {
|
|
NS_WARNING("invalid font (name table strings)");
|
|
return;
|
|
}
|
|
|
|
uint16_t nameID = nameRecord->nameID;
|
|
if ((useFullName && nameID == gfxFontUtils::NAME_ID_FULL) ||
|
|
(!useFullName && (nameID == gfxFontUtils::NAME_ID_FAMILY ||
|
|
nameID == gfxFontUtils::NAME_ID_PREFERRED_FAMILY))) {
|
|
nsAutoString otherFamilyName;
|
|
bool ok = gfxFontUtils::DecodeFontName(aNameData + stringsBase + nameOff,
|
|
nameLen,
|
|
uint32_t(nameRecord->platformID),
|
|
uint32_t(nameRecord->encodingID),
|
|
uint32_t(nameRecord->languageID),
|
|
otherFamilyName);
|
|
// add if not same as canonical family name
|
|
if (ok && otherFamilyName != aFamilyName) {
|
|
aOtherFamilyNames.AppendElement(otherFamilyName);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// returns true if other names were found, false otherwise
|
|
bool
|
|
gfxFontFamily::ReadOtherFamilyNamesForFace(gfxPlatformFontList *aPlatformFontList,
|
|
hb_blob_t *aNameTable,
|
|
bool useFullName)
|
|
{
|
|
uint32_t dataLength;
|
|
const char *nameData = hb_blob_get_data(aNameTable, &dataLength);
|
|
nsAutoTArray<nsString,4> otherFamilyNames;
|
|
|
|
ReadOtherFamilyNamesForFace(mName, nameData, dataLength,
|
|
otherFamilyNames, useFullName);
|
|
|
|
uint32_t n = otherFamilyNames.Length();
|
|
for (uint32_t i = 0; i < n; i++) {
|
|
aPlatformFontList->AddOtherFamilyName(this, otherFamilyNames[i]);
|
|
}
|
|
|
|
return n != 0;
|
|
}
|
|
|
|
void
|
|
gfxFontFamily::ReadOtherFamilyNames(gfxPlatformFontList *aPlatformFontList)
|
|
{
|
|
if (mOtherFamilyNamesInitialized)
|
|
return;
|
|
mOtherFamilyNamesInitialized = true;
|
|
|
|
FindStyleVariations();
|
|
|
|
// read in other family names for the first face in the list
|
|
uint32_t i, numFonts = mAvailableFonts.Length();
|
|
const uint32_t kNAME = TRUETYPE_TAG('n','a','m','e');
|
|
|
|
for (i = 0; i < numFonts; ++i) {
|
|
gfxFontEntry *fe = mAvailableFonts[i];
|
|
if (!fe) {
|
|
continue;
|
|
}
|
|
gfxFontEntry::AutoTable nameTable(fe, kNAME);
|
|
if (!nameTable) {
|
|
continue;
|
|
}
|
|
mHasOtherFamilyNames = ReadOtherFamilyNamesForFace(aPlatformFontList,
|
|
nameTable);
|
|
break;
|
|
}
|
|
|
|
// read in other names for the first face in the list with the assumption
|
|
// that if extra names don't exist in that face then they don't exist in
|
|
// other faces for the same font
|
|
if (!mHasOtherFamilyNames)
|
|
return;
|
|
|
|
// read in names for all faces, needed to catch cases where fonts have
|
|
// family names for individual weights (e.g. Hiragino Kaku Gothic Pro W6)
|
|
for ( ; i < numFonts; i++) {
|
|
gfxFontEntry *fe = mAvailableFonts[i];
|
|
if (!fe) {
|
|
continue;
|
|
}
|
|
gfxFontEntry::AutoTable nameTable(fe, kNAME);
|
|
if (!nameTable) {
|
|
continue;
|
|
}
|
|
ReadOtherFamilyNamesForFace(aPlatformFontList, nameTable);
|
|
}
|
|
}
|
|
|
|
void
|
|
gfxFontFamily::ReadFaceNames(gfxPlatformFontList *aPlatformFontList,
|
|
bool aNeedFullnamePostscriptNames,
|
|
FontInfoData *aFontInfoData)
|
|
{
|
|
// if all needed names have already been read, skip
|
|
if (mOtherFamilyNamesInitialized &&
|
|
(mFaceNamesInitialized || !aNeedFullnamePostscriptNames))
|
|
return;
|
|
|
|
bool asyncFontLoaderDisabled = false;
|
|
|
|
#if defined(XP_MACOSX)
|
|
// bug 975460 - async font loader crashes sometimes under 10.6, disable
|
|
if (!nsCocoaFeatures::OnLionOrLater()) {
|
|
asyncFontLoaderDisabled = true;
|
|
}
|
|
#endif
|
|
|
|
if (!mOtherFamilyNamesInitialized &&
|
|
aFontInfoData &&
|
|
aFontInfoData->mLoadOtherNames &&
|
|
!asyncFontLoaderDisabled)
|
|
{
|
|
nsAutoTArray<nsString,4> otherFamilyNames;
|
|
bool foundOtherNames =
|
|
aFontInfoData->GetOtherFamilyNames(mName, otherFamilyNames);
|
|
if (foundOtherNames) {
|
|
uint32_t i, n = otherFamilyNames.Length();
|
|
for (i = 0; i < n; i++) {
|
|
aPlatformFontList->AddOtherFamilyName(this, otherFamilyNames[i]);
|
|
}
|
|
}
|
|
mOtherFamilyNamesInitialized = true;
|
|
}
|
|
|
|
// if all needed data has been initialized, return
|
|
if (mOtherFamilyNamesInitialized &&
|
|
(mFaceNamesInitialized || !aNeedFullnamePostscriptNames)) {
|
|
return;
|
|
}
|
|
|
|
FindStyleVariations(aFontInfoData);
|
|
|
|
// check again, as style enumeration code may have loaded names
|
|
if (mOtherFamilyNamesInitialized &&
|
|
(mFaceNamesInitialized || !aNeedFullnamePostscriptNames)) {
|
|
return;
|
|
}
|
|
|
|
uint32_t i, numFonts = mAvailableFonts.Length();
|
|
const uint32_t kNAME = TRUETYPE_TAG('n','a','m','e');
|
|
|
|
bool firstTime = true, readAllFaces = false;
|
|
for (i = 0; i < numFonts; ++i) {
|
|
gfxFontEntry *fe = mAvailableFonts[i];
|
|
if (!fe) {
|
|
continue;
|
|
}
|
|
|
|
nsAutoString fullname, psname;
|
|
bool foundFaceNames = false;
|
|
if (!mFaceNamesInitialized &&
|
|
aNeedFullnamePostscriptNames &&
|
|
aFontInfoData &&
|
|
aFontInfoData->mLoadFaceNames) {
|
|
aFontInfoData->GetFaceNames(fe->Name(), fullname, psname);
|
|
if (!fullname.IsEmpty()) {
|
|
aPlatformFontList->AddFullname(fe, fullname);
|
|
}
|
|
if (!psname.IsEmpty()) {
|
|
aPlatformFontList->AddPostscriptName(fe, psname);
|
|
}
|
|
foundFaceNames = true;
|
|
|
|
// found everything needed? skip to next font
|
|
if (mOtherFamilyNamesInitialized) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// load directly from the name table
|
|
gfxFontEntry::AutoTable nameTable(fe, kNAME);
|
|
if (!nameTable) {
|
|
continue;
|
|
}
|
|
|
|
if (aNeedFullnamePostscriptNames && !foundFaceNames) {
|
|
if (gfxFontUtils::ReadCanonicalName(
|
|
nameTable, gfxFontUtils::NAME_ID_FULL, fullname) == NS_OK)
|
|
{
|
|
aPlatformFontList->AddFullname(fe, fullname);
|
|
}
|
|
|
|
if (gfxFontUtils::ReadCanonicalName(
|
|
nameTable, gfxFontUtils::NAME_ID_POSTSCRIPT, psname) == NS_OK)
|
|
{
|
|
aPlatformFontList->AddPostscriptName(fe, psname);
|
|
}
|
|
}
|
|
|
|
if (!mOtherFamilyNamesInitialized && (firstTime || readAllFaces)) {
|
|
bool foundOtherName = ReadOtherFamilyNamesForFace(aPlatformFontList,
|
|
nameTable);
|
|
|
|
// if the first face has a different name, scan all faces, otherwise
|
|
// assume the family doesn't have other names
|
|
if (firstTime && foundOtherName) {
|
|
mHasOtherFamilyNames = true;
|
|
readAllFaces = true;
|
|
}
|
|
firstTime = false;
|
|
}
|
|
|
|
// if not reading in any more names, skip other faces
|
|
if (!readAllFaces && !aNeedFullnamePostscriptNames) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
mFaceNamesInitialized = true;
|
|
mOtherFamilyNamesInitialized = true;
|
|
}
|
|
|
|
|
|
gfxFontEntry*
|
|
gfxFontFamily::FindFont(const nsAString& aPostscriptName)
|
|
{
|
|
// find the font using a simple linear search
|
|
uint32_t numFonts = mAvailableFonts.Length();
|
|
for (uint32_t i = 0; i < numFonts; i++) {
|
|
gfxFontEntry *fe = mAvailableFonts[i].get();
|
|
if (fe && fe->Name() == aPostscriptName)
|
|
return fe;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void
|
|
gfxFontFamily::ReadAllCMAPs(FontInfoData *aFontInfoData)
|
|
{
|
|
FindStyleVariations(aFontInfoData);
|
|
|
|
uint32_t i, numFonts = mAvailableFonts.Length();
|
|
for (i = 0; i < numFonts; i++) {
|
|
gfxFontEntry *fe = mAvailableFonts[i];
|
|
// don't try to load cmaps for downloadable fonts not yet loaded
|
|
if (!fe || fe->mIsUserFontContainer) {
|
|
continue;
|
|
}
|
|
fe->ReadCMAP(aFontInfoData);
|
|
mFamilyCharacterMap.Union(*(fe->mCharacterMap));
|
|
}
|
|
mFamilyCharacterMap.Compact();
|
|
mFamilyCharacterMapInitialized = true;
|
|
}
|
|
|
|
void
|
|
gfxFontFamily::AddSizeOfExcludingThis(MallocSizeOf aMallocSizeOf,
|
|
FontListSizes* aSizes) const
|
|
{
|
|
aSizes->mFontListSize +=
|
|
mName.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
|
|
aSizes->mCharMapsSize +=
|
|
mFamilyCharacterMap.SizeOfExcludingThis(aMallocSizeOf);
|
|
|
|
aSizes->mFontListSize +=
|
|
mAvailableFonts.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
for (uint32_t i = 0; i < mAvailableFonts.Length(); ++i) {
|
|
gfxFontEntry *fe = mAvailableFonts[i];
|
|
if (fe) {
|
|
fe->AddSizeOfIncludingThis(aMallocSizeOf, aSizes);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
gfxFontFamily::AddSizeOfIncludingThis(MallocSizeOf aMallocSizeOf,
|
|
FontListSizes* aSizes) const
|
|
{
|
|
aSizes->mFontListSize += aMallocSizeOf(this);
|
|
AddSizeOfExcludingThis(aMallocSizeOf, aSizes);
|
|
}
|