/* * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. * Copyright (C) 2007 Nicholas Shanks <[email protected]> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "third_party/blink/renderer/platform/fonts/font_cache.h" #include <limits> #include <memory> #include "base/debug/alias.h" #include "base/feature_list.h" #include "base/strings/escape.h" #include "base/system/sys_info.h" #include "base/timer/elapsed_timer.h" #include "base/trace_event/process_memory_dump.h" #include "base/trace_event/trace_event.h" #include "build/build_config.h" #include "skia/ext/font_utils.h" #include "third_party/blink/public/common/features.h" #include "third_party/blink/public/platform/platform.h" #include "third_party/blink/renderer/platform/font_family_names.h" #include "third_party/blink/renderer/platform/fonts/alternate_font_family.h" #include "third_party/blink/renderer/platform/fonts/font_cache_client.h" #include "third_party/blink/renderer/platform/fonts/font_data_cache.h" #include "third_party/blink/renderer/platform/fonts/font_description.h" #include "third_party/blink/renderer/platform/fonts/font_fallback_map.h" #include "third_party/blink/renderer/platform/fonts/font_fallback_priority.h" #include "third_party/blink/renderer/platform/fonts/font_global_context.h" #include "third_party/blink/renderer/platform/fonts/font_performance.h" #include "third_party/blink/renderer/platform/fonts/font_platform_data_cache.h" #include "third_party/blink/renderer/platform/fonts/font_unique_name_lookup.h" #include "third_party/blink/renderer/platform/fonts/simple_font_data.h" #include "third_party/blink/renderer/platform/heap/thread_state.h" #include "third_party/blink/renderer/platform/instrumentation/tracing/web_memory_allocator_dump.h" #include "third_party/blink/renderer/platform/instrumentation/tracing/web_process_memory_dump.h" #include "third_party/blink/renderer/platform/json/json_parser.h" #include "third_party/blink/renderer/platform/json/json_values.h" #include "third_party/blink/renderer/platform/wtf/text/atomic_string_hash.h" #include "third_party/blink/renderer/platform/wtf/text/code_point_iterator.h" #include "third_party/blink/renderer/platform/wtf/text/string_hash.h" #include "third_party/blink/renderer/platform/wtf/vector.h" #include "ui/gfx/font_list.h" #if BUILDFLAG(IS_WIN) #include "third_party/skia/include/ports/SkTypeface_win.h" #endif namespace blink { const char kColorEmojiLocale[] = …; const char kMonoEmojiLocale[] = …; #if BUILDFLAG(IS_ANDROID) extern const char kNotoColorEmojiCompat[] = "Noto Color Emoji Compat"; #endif SkFontMgr* FontCache::static_font_manager_ = …; #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) float FontCache::device_scale_factor_ = …; #endif #if BUILDFLAG(IS_WIN) bool FontCache::antialiased_text_enabled_ = false; bool FontCache::lcd_text_enabled_ = false; static bool should_use_test_font_mgr = false; #endif // BUILDFLAG(IS_WIN) FontCache& FontCache::Get() { … } FontCache::FontCache() : … { … } FontCache::~FontCache() = default; void FontCache::Trace(Visitor* visitor) const { … } #if !BUILDFLAG(IS_MAC) const FontPlatformData* FontCache::SystemFontPlatformData( const FontDescription& font_description) { … } #endif const FontPlatformData* FontCache::GetFontPlatformData( const FontDescription& font_description, const FontFaceCreationParams& creation_params, AlternateFontName alternate_font_name) { … } ShapeCache* FontCache::GetShapeCache(const FallbackListCompositeKey& key) { … } void FontCache::SetFontManager(sk_sp<SkFontMgr> font_manager) { … } void FontCache::AcceptLanguagesChanged(const String& accept_languages) { … } const SimpleFontData* FontCache::GetFontData( const FontDescription& font_description, const AtomicString& family, AlternateFontName altername_font_name) { … } const SimpleFontData* FontCache::FontDataFromFontPlatformData( const FontPlatformData* platform_data, bool subpixel_ascent_descent) { … } bool FontCache::IsPlatformFamilyMatchAvailable( const FontDescription& font_description, const AtomicString& family) { … } bool FontCache::IsPlatformFontUniqueNameMatchAvailable( const FontDescription& font_description, const AtomicString& unique_font_name) { … } String FontCache::FirstAvailableOrFirst(const String& families) { … } const SimpleFontData* FontCache::FallbackFontForCharacter( const FontDescription& description, UChar32 lookup_char, const SimpleFontData* font_data_to_substitute, FontFallbackPriority fallback_priority) { … } void FontCache::PurgeFallbackListShaperCache() { … } void FontCache::InvalidateShapeCache() { … } void FontCache::Purge() { … } void FontCache::AddClient(FontCacheClient* client) { … } uint16_t FontCache::Generation() { … } void FontCache::Invalidate() { … } void FontCache::CrashWithFontInfo(const FontDescription* font_description) { … } void FontCache::DumpShapeResultCache( base::trace_event::ProcessMemoryDump* memory_dump) { … } sk_sp<SkTypeface> FontCache::CreateTypefaceFromUniqueName( const FontFaceCreationParams& creation_params) { … } // static FontCache::Bcp47Vector FontCache::GetBcp47LocaleForRequest( const FontDescription& font_description, FontFallbackPriority fallback_priority) { … } // TODO(crbug/342967843): In WebTest, Fuchsia initializes fonts by calling // `skia::InitializeSkFontMgrForTest();` expecting that other code doesn't // initialize SkFontMgr beforehand. But `FontCache::MaybePreloadSystemFonts()` // breaks this expectation. So we don't provide // `FontCache::MaybePreloadSystemFonts()` feature for Fuchsia for now. #if BUILDFLAG(IS_FUCHSIA) // static void FontCache::MaybePreloadSystemFonts() {} #else // static void FontCache::MaybePreloadSystemFonts() { … } #endif // BUILDFLAG(IS_FUCHSIA) FontFallbackMap& FontCache::GetFontFallbackMap() { … } } // namespace blink
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