зеркало из https://github.com/mozilla/gecko-dev.git
384 строки
12 KiB
C++
384 строки
12 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "base/basictypes.h"
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#include "gfxAndroidPlatform.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/gfxVars.h"
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#include "mozilla/CountingAllocatorBase.h"
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#include "mozilla/intl/LocaleService.h"
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#include "mozilla/intl/OSPreferences.h"
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#include "mozilla/jni/Utils.h"
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#include "mozilla/layers/AndroidHardwareBuffer.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/StaticPrefs_gfx.h"
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#include "mozilla/StaticPrefs_webgl.h"
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#include "mozilla/widget/AndroidVsync.h"
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#include "gfx2DGlue.h"
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#include "gfxFT2FontList.h"
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#include "gfxImageSurface.h"
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#include "gfxTextRun.h"
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#include "nsXULAppAPI.h"
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#include "nsIScreen.h"
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#include "nsServiceManagerUtils.h"
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#include "nsUnicodeProperties.h"
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#include "cairo.h"
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#include "VsyncSource.h"
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#include "ft2build.h"
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#include FT_FREETYPE_H
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#include FT_MODULE_H
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::gfx;
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using namespace mozilla::unicode;
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using mozilla::intl::LocaleService;
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using mozilla::intl::OSPreferences;
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static FT_Library gPlatformFTLibrary = nullptr;
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class FreetypeReporter final : public nsIMemoryReporter,
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public CountingAllocatorBase<FreetypeReporter> {
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private:
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~FreetypeReporter() {}
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public:
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NS_DECL_ISUPPORTS
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static void* Malloc(FT_Memory, long size) { return CountingMalloc(size); }
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static void Free(FT_Memory, void* p) { return CountingFree(p); }
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static void* Realloc(FT_Memory, long cur_size, long new_size, void* p) {
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return CountingRealloc(p, new_size);
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}
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NS_IMETHOD CollectReports(nsIHandleReportCallback* aHandleReport,
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nsISupports* aData, bool aAnonymize) override {
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MOZ_COLLECT_REPORT("explicit/freetype", KIND_HEAP, UNITS_BYTES,
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MemoryAllocated(), "Memory used by Freetype.");
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return NS_OK;
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}
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};
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NS_IMPL_ISUPPORTS(FreetypeReporter, nsIMemoryReporter)
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template <>
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CountingAllocatorBase<FreetypeReporter>::AmountType
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CountingAllocatorBase<FreetypeReporter>::sAmount(0);
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static FT_MemoryRec_ sFreetypeMemoryRecord;
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gfxAndroidPlatform::gfxAndroidPlatform() {
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// A custom allocator. It counts allocations, enabling memory reporting.
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sFreetypeMemoryRecord.user = nullptr;
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sFreetypeMemoryRecord.alloc = FreetypeReporter::Malloc;
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sFreetypeMemoryRecord.free = FreetypeReporter::Free;
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sFreetypeMemoryRecord.realloc = FreetypeReporter::Realloc;
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// These two calls are equivalent to FT_Init_FreeType(), but allow us to
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// provide a custom memory allocator.
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FT_New_Library(&sFreetypeMemoryRecord, &gPlatformFTLibrary);
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FT_Add_Default_Modules(gPlatformFTLibrary);
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Factory::SetFTLibrary(gPlatformFTLibrary);
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RegisterStrongMemoryReporter(new FreetypeReporter());
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mOffscreenFormat = GetScreenDepth() == 16 ? SurfaceFormat::R5G6B5_UINT16
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: SurfaceFormat::X8R8G8B8_UINT32;
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if (StaticPrefs::gfx_android_rgb16_force_AtStartup()) {
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mOffscreenFormat = SurfaceFormat::R5G6B5_UINT16;
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}
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}
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gfxAndroidPlatform::~gfxAndroidPlatform() {
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FT_Done_Library(gPlatformFTLibrary);
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gPlatformFTLibrary = nullptr;
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layers::AndroidHardwareBufferManager::Shutdown();
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layers::AndroidHardwareBufferApi::Shutdown();
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}
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void gfxAndroidPlatform::InitAcceleration() {
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gfxPlatform::InitAcceleration();
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if (XRE_IsParentProcess() && jni::GetAPIVersion() >= 26) {
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if (StaticPrefs::gfx_use_ahardwarebuffer_content_AtStartup()) {
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gfxVars::SetUseAHardwareBufferContent(true);
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}
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if (StaticPrefs::webgl_enable_ahardwarebuffer()) {
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gfxVars::SetUseAHardwareBufferSharedSurface(true);
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}
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}
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if (gfx::gfxVars::UseAHardwareBufferContent() ||
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gfxVars::UseAHardwareBufferSharedSurface()) {
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layers::AndroidHardwareBufferApi::Init();
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layers::AndroidHardwareBufferManager::Init();
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}
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}
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already_AddRefed<gfxASurface> gfxAndroidPlatform::CreateOffscreenSurface(
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const IntSize& aSize, gfxImageFormat aFormat) {
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if (!Factory::AllowedSurfaceSize(aSize)) {
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return nullptr;
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}
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RefPtr<gfxASurface> newSurface;
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newSurface = new gfxImageSurface(aSize, aFormat);
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return newSurface.forget();
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}
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static bool IsJapaneseLocale() {
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static bool sInitialized = false;
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static bool sIsJapanese = false;
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if (!sInitialized) {
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sInitialized = true;
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nsAutoCString appLocale;
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LocaleService::GetInstance()->GetAppLocaleAsBCP47(appLocale);
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const nsDependentCSubstring lang(appLocale, 0, 2);
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if (lang.EqualsLiteral("ja")) {
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sIsJapanese = true;
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} else {
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OSPreferences::GetInstance()->GetSystemLocale(appLocale);
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const nsDependentCSubstring lang(appLocale, 0, 2);
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if (lang.EqualsLiteral("ja")) {
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sIsJapanese = true;
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}
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}
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}
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return sIsJapanese;
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}
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void gfxAndroidPlatform::GetCommonFallbackFonts(
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uint32_t aCh, Script aRunScript, eFontPresentation aPresentation,
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nsTArray<const char*>& aFontList) {
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static const char kDroidSansJapanese[] = "Droid Sans Japanese";
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static const char kMotoyaLMaru[] = "MotoyaLMaru";
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static const char kNotoSansCJKJP[] = "Noto Sans CJK JP";
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static const char kNotoColorEmoji[] = "Noto Color Emoji";
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if (PrefersColor(aPresentation)) {
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aFontList.AppendElement(kNotoColorEmoji);
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}
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if (IS_IN_BMP(aCh)) {
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// try language-specific "Droid Sans *" and "Noto Sans *" fonts for
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// certain blocks, as most devices probably have these
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uint8_t block = (aCh >> 8) & 0xff;
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switch (block) {
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case 0x05:
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aFontList.AppendElement("Noto Sans Hebrew");
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aFontList.AppendElement("Droid Sans Hebrew");
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aFontList.AppendElement("Noto Sans Armenian");
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aFontList.AppendElement("Droid Sans Armenian");
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break;
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case 0x06:
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aFontList.AppendElement("Noto Sans Arabic");
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aFontList.AppendElement("Droid Sans Arabic");
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break;
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case 0x09:
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aFontList.AppendElement("Noto Sans Devanagari");
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aFontList.AppendElement("Noto Sans Bengali");
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aFontList.AppendElement("Droid Sans Devanagari");
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break;
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case 0x0a:
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aFontList.AppendElement("Noto Sans Gurmukhi");
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aFontList.AppendElement("Noto Sans Gujarati");
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break;
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case 0x0b:
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aFontList.AppendElement("Noto Sans Tamil");
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aFontList.AppendElement("Noto Sans Oriya");
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aFontList.AppendElement("Droid Sans Tamil");
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break;
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case 0x0c:
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aFontList.AppendElement("Noto Sans Telugu");
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aFontList.AppendElement("Noto Sans Kannada");
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break;
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case 0x0d:
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aFontList.AppendElement("Noto Sans Malayalam");
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aFontList.AppendElement("Noto Sans Sinhala");
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break;
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case 0x0e:
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aFontList.AppendElement("Noto Sans Thai");
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aFontList.AppendElement("Noto Sans Lao");
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aFontList.AppendElement("Droid Sans Thai");
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break;
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case 0x0f:
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aFontList.AppendElement("Noto Sans Tibetan");
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break;
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case 0x10:
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case 0x2d:
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aFontList.AppendElement("Noto Sans Georgian");
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aFontList.AppendElement("Droid Sans Georgian");
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break;
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case 0x12:
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case 0x13:
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aFontList.AppendElement("Noto Sans Ethiopic");
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aFontList.AppendElement("Droid Sans Ethiopic");
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break;
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case 0x21:
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case 0x23:
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case 0x24:
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case 0x26:
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case 0x27:
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case 0x29:
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aFontList.AppendElement("Noto Sans Symbols");
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break;
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case 0xf9:
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case 0xfa:
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if (IsJapaneseLocale()) {
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aFontList.AppendElement(kMotoyaLMaru);
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aFontList.AppendElement(kNotoSansCJKJP);
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aFontList.AppendElement(kDroidSansJapanese);
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}
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break;
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default:
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if (block >= 0x2e && block <= 0x9f && IsJapaneseLocale()) {
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aFontList.AppendElement(kMotoyaLMaru);
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aFontList.AppendElement(kNotoSansCJKJP);
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aFontList.AppendElement(kDroidSansJapanese);
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}
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break;
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}
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}
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// and try Droid Sans Fallback as a last resort
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aFontList.AppendElement("Droid Sans Fallback");
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}
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bool gfxAndroidPlatform::CreatePlatformFontList() {
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return gfxPlatformFontList::Initialize(new gfxFT2FontList);
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}
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void gfxAndroidPlatform::ReadSystemFontList(
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mozilla::dom::SystemFontList* aFontList) {
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gfxFT2FontList::PlatformFontList()->ReadSystemFontList(aFontList);
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}
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bool gfxAndroidPlatform::FontHintingEnabled() {
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// In "mobile" builds, we sometimes use non-reflow-zoom, so we
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// might not want hinting. Let's see.
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#ifdef MOZ_WIDGET_ANDROID
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// On Android, we currently only use gecko to render web
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// content that can always be be non-reflow-zoomed. So turn off
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// hinting.
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//
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// XXX when gecko-android-java is used as an "app runtime", we may
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// want to re-enable hinting for non-browser processes there.
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return false;
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#endif // MOZ_WIDGET_ANDROID
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// Currently, we don't have any other targets, but if/when we do,
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// decide how to handle them here.
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MOZ_ASSERT_UNREACHABLE("oops, what platform is this?");
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return gfxPlatform::FontHintingEnabled();
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}
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bool gfxAndroidPlatform::RequiresLinearZoom() {
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#ifdef MOZ_WIDGET_ANDROID
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// On Android, we currently only use gecko to render web
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// content that can always be be non-reflow-zoomed.
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//
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// XXX when gecko-android-java is used as an "app runtime", we may
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// want to use linear zoom only for the web browser process, not other apps.
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return true;
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#endif
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MOZ_ASSERT_UNREACHABLE("oops, what platform is this?");
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return gfxPlatform::RequiresLinearZoom();
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}
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class AndroidVsyncSource final : public VsyncSource {
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public:
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class Display final : public VsyncSource::Display,
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public widget::AndroidVsync::Observer {
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public:
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Display() : mAndroidVsync(widget::AndroidVsync::GetInstance()) {}
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~Display() { DisableVsync(); }
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bool IsVsyncEnabled() override {
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MOZ_ASSERT(NS_IsMainThread());
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return mObservingVsync;
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}
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void EnableVsync() override {
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MOZ_ASSERT(NS_IsMainThread());
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if (mObservingVsync) {
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return;
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}
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mAndroidVsync->RegisterObserver(this, widget::AndroidVsync::RENDER);
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mObservingVsync = true;
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}
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void DisableVsync() override {
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MOZ_ASSERT(NS_IsMainThread());
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if (!mObservingVsync) {
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return;
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}
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mAndroidVsync->UnregisterObserver(this, widget::AndroidVsync::RENDER);
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mObservingVsync = false;
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}
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TimeDuration GetVsyncRate() override {
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return mAndroidVsync->GetVsyncRate();
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}
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void Shutdown() override { DisableVsync(); }
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// Override for the widget::AndroidVsync::Observer method
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void OnVsync(const TimeStamp& aTimeStamp) override {
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// Use the timebase from the frame callback as the vsync time, unless it
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// is in the future.
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TimeStamp now = TimeStamp::Now();
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TimeStamp vsyncTime = aTimeStamp < now ? aTimeStamp : now;
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TimeStamp outputTime = vsyncTime + GetVsyncRate();
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NotifyVsync(vsyncTime, outputTime);
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}
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private:
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RefPtr<widget::AndroidVsync> mAndroidVsync;
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bool mObservingVsync = false;
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TimeDuration mVsyncDuration;
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};
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Display& GetGlobalDisplay() final { return GetDisplayInstance(); }
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private:
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virtual ~AndroidVsyncSource() = default;
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static Display& GetDisplayInstance() {
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static RefPtr<Display> globalDisplay = new Display();
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return *globalDisplay;
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}
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};
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already_AddRefed<mozilla::gfx::VsyncSource>
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gfxAndroidPlatform::CreateHardwareVsyncSource() {
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// Vsync was introduced since JB (API 16~18) but inaccurate. Enable only for
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// KK (API 19) and later.
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if (jni::GetAPIVersion() >= 19) {
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RefPtr<AndroidVsyncSource> vsyncSource = new AndroidVsyncSource();
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return vsyncSource.forget();
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}
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NS_WARNING("Vsync not supported. Falling back to software vsync");
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return gfxPlatform::CreateHardwareVsyncSource();
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}
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