/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "mozilla/layers/AsyncTransactionTracker.h" // for AsyncTransactionTracker #include "mozilla/layers/CompositorChild.h" #include "mozilla/layers/CompositorParent.h" #include "mozilla/layers/ImageBridgeChild.h" #include "mozilla/layers/SharedBufferManagerChild.h" #include "mozilla/layers/ISurfaceAllocator.h" // for GfxMemoryImageReporter #include "mozilla/Logging.h" #include "mozilla/Services.h" #include "prprf.h" #include "gfxPlatform.h" #include "gfxPrefs.h" #include "gfxTextRun.h" #include "gfxVR.h" #ifdef XP_WIN #include #define getpid _getpid #else #include #endif #include "nsXULAppAPI.h" #include "nsDirectoryServiceUtils.h" #include "nsDirectoryServiceDefs.h" #if defined(XP_WIN) #include "gfxWindowsPlatform.h" #elif defined(XP_MACOSX) #include "gfxPlatformMac.h" #include "gfxQuartzSurface.h" #elif defined(MOZ_WIDGET_GTK) #include "gfxPlatformGtk.h" #elif defined(MOZ_WIDGET_QT) #include "gfxQtPlatform.h" #elif defined(ANDROID) #include "gfxAndroidPlatform.h" #endif #include "nsGkAtoms.h" #include "gfxPlatformFontList.h" #include "gfxContext.h" #include "gfxImageSurface.h" #include "nsUnicodeProperties.h" #include "harfbuzz/hb.h" #include "gfxGraphiteShaper.h" #include "gfx2DGlue.h" #include "gfxGradientCache.h" #include "nsUnicodeRange.h" #include "nsServiceManagerUtils.h" #include "nsTArray.h" #include "nsILocaleService.h" #include "nsIObserverService.h" #include "MainThreadUtils.h" #ifdef MOZ_CRASHREPORTER #include "nsExceptionHandler.h" #endif #include "nsWeakReference.h" #include "cairo.h" #include "qcms.h" #include "imgITools.h" #include "plstr.h" #include "nsCRT.h" #include "GLContext.h" #include "GLContextProvider.h" #include "mozilla/gfx/Logging.h" #if defined(MOZ_WIDGET_GTK) #include "gfxPlatformGtk.h" // xxx - for UseFcFontList #endif #ifdef MOZ_WIDGET_ANDROID #include "TexturePoolOGL.h" #endif #ifdef MOZ_WIDGET_GONK #include "mozilla/layers/GrallocTextureHost.h" #endif #include "mozilla/Hal.h" #ifdef USE_SKIA #include "skia/SkGraphics.h" # ifdef USE_SKIA_GPU # include "SkiaGLGlue.h" # endif #endif #if !defined(USE_SKIA) || !defined(USE_SKIA_GPU) class mozilla::gl::SkiaGLGlue : public GenericAtomicRefCounted { }; #endif #include "mozilla/Preferences.h" #include "mozilla/Assertions.h" #include "mozilla/Attributes.h" #include "mozilla/Mutex.h" #include "nsIGfxInfo.h" #include "nsIXULRuntime.h" #include "VsyncSource.h" #include "SoftwareVsyncSource.h" namespace mozilla { namespace layers { #ifdef MOZ_WIDGET_GONK void InitGralloc(); #endif void ShutdownTileCache(); } // namespace layers } // namespace mozilla using namespace mozilla; using namespace mozilla::layers; using namespace mozilla::gl; gfxPlatform *gPlatform = nullptr; static bool gEverInitialized = false; static Mutex* gGfxPlatformPrefsLock = nullptr; // These two may point to the same profile static qcms_profile *gCMSOutputProfile = nullptr; static qcms_profile *gCMSsRGBProfile = nullptr; static qcms_transform *gCMSRGBTransform = nullptr; static qcms_transform *gCMSInverseRGBTransform = nullptr; static qcms_transform *gCMSRGBATransform = nullptr; static bool gCMSInitialized = false; static eCMSMode gCMSMode = eCMSMode_Off; static void ShutdownCMS(); #include "mozilla/gfx/2D.h" #include "mozilla/gfx/SourceSurfaceCairo.h" using namespace mozilla::gfx; void InitLayersAccelerationPrefs(); /* Class to listen for pref changes so that chrome code can dynamically force sRGB as an output profile. See Bug #452125. */ class SRGBOverrideObserver final : public nsIObserver, public nsSupportsWeakReference { ~SRGBOverrideObserver() {} public: NS_DECL_ISUPPORTS NS_DECL_NSIOBSERVER }; /// This override of the LogForwarder, initially used for the critical graphics /// errors, is sending the log to the crash annotations as well, but only /// if the capacity set with the method below is >= 2. We always retain the /// very first critical message, and the latest capacity-1 messages are /// rotated through. Note that we don't expect the total number of times /// this gets called to be large - it is meant for critical errors only. class CrashStatsLogForwarder: public mozilla::gfx::LogForwarder { public: explicit CrashStatsLogForwarder(const char* aKey); virtual void Log(const std::string& aString) override; virtual std::vector > StringsVectorCopy() override; void SetCircularBufferSize(uint32_t aCapacity); private: // Helpers for the Log() bool UpdateStringsVector(const std::string& aString); void UpdateCrashReport(); private: std::vector > mBuffer; nsCString mCrashCriticalKey; uint32_t mMaxCapacity; int32_t mIndex; Mutex mMutex; }; CrashStatsLogForwarder::CrashStatsLogForwarder(const char* aKey) : mBuffer() , mCrashCriticalKey(aKey) , mMaxCapacity(0) , mIndex(-1) , mMutex("CrashStatsLogForwarder") { } void CrashStatsLogForwarder::SetCircularBufferSize(uint32_t aCapacity) { MutexAutoLock lock(mMutex); mMaxCapacity = aCapacity; mBuffer.reserve(static_cast(aCapacity)); } std::vector > CrashStatsLogForwarder::StringsVectorCopy() { MutexAutoLock lock(mMutex); return mBuffer; } bool CrashStatsLogForwarder::UpdateStringsVector(const std::string& aString) { // We want at least the first one and the last one. Otherwise, no point. if (mMaxCapacity < 2) { return false; } mIndex += 1; MOZ_ASSERT(mIndex >= 0); // index will count 0, 1, 2, ..., max-1, 1, 2, ..., max-1, 1, 2, ... int32_t index = mIndex ? (mIndex-1) % (mMaxCapacity-1) + 1 : 0; MOZ_ASSERT(index >= 0 && index < (int32_t)mMaxCapacity); MOZ_ASSERT(index <= mIndex && index <= (int32_t)mBuffer.size()); // Checking for index >= mBuffer.size(), rather than index == mBuffer.size() // just out of paranoia, but we know index <= mBuffer.size(). std::pair newEntry(mIndex,aString); if (index >= static_cast(mBuffer.size())) { mBuffer.push_back(newEntry); } else { mBuffer[index] = newEntry; } return true; } void CrashStatsLogForwarder::UpdateCrashReport() { std::stringstream message; for(std::vector >::iterator it = mBuffer.begin(); it != mBuffer.end(); ++it) { message << "|[" << (*it).first << "]" << (*it).second; } #ifdef MOZ_CRASHREPORTER nsCString reportString(message.str().c_str()); nsresult annotated = CrashReporter::AnnotateCrashReport(mCrashCriticalKey, reportString); #else nsresult annotated = NS_ERROR_NOT_IMPLEMENTED; #endif if (annotated != NS_OK) { printf("Crash Annotation %s: %s", mCrashCriticalKey.get(), message.str().c_str()); } } void CrashStatsLogForwarder::Log(const std::string& aString) { MutexAutoLock lock(mMutex); if (UpdateStringsVector(aString)) { UpdateCrashReport(); } } NS_IMPL_ISUPPORTS(SRGBOverrideObserver, nsIObserver, nsISupportsWeakReference) #define GFX_DOWNLOADABLE_FONTS_ENABLED "gfx.downloadable_fonts.enabled" #define GFX_PREF_FALLBACK_USE_CMAPS "gfx.font_rendering.fallback.always_use_cmaps" #define GFX_PREF_OPENTYPE_SVG "gfx.font_rendering.opentype_svg.enabled" #define GFX_PREF_WORD_CACHE_CHARLIMIT "gfx.font_rendering.wordcache.charlimit" #define GFX_PREF_WORD_CACHE_MAXENTRIES "gfx.font_rendering.wordcache.maxentries" #define GFX_PREF_GRAPHITE_SHAPING "gfx.font_rendering.graphite.enabled" #define BIDI_NUMERAL_PREF "bidi.numeral" #define GFX_PREF_CMS_FORCE_SRGB "gfx.color_management.force_srgb" NS_IMETHODIMP SRGBOverrideObserver::Observe(nsISupports *aSubject, const char *aTopic, const char16_t* someData) { NS_ASSERTION(NS_strcmp(someData, MOZ_UTF16(GFX_PREF_CMS_FORCE_SRGB)) == 0, "Restarting CMS on wrong pref!"); ShutdownCMS(); // Update current cms profile. gfxPlatform::CreateCMSOutputProfile(); return NS_OK; } static const char* kObservedPrefs[] = { "gfx.downloadable_fonts.", "gfx.font_rendering.", BIDI_NUMERAL_PREF, nullptr }; class FontPrefsObserver final : public nsIObserver { ~FontPrefsObserver() {} public: NS_DECL_ISUPPORTS NS_DECL_NSIOBSERVER }; NS_IMPL_ISUPPORTS(FontPrefsObserver, nsIObserver) NS_IMETHODIMP FontPrefsObserver::Observe(nsISupports *aSubject, const char *aTopic, const char16_t *someData) { if (!someData) { NS_ERROR("font pref observer code broken"); return NS_ERROR_UNEXPECTED; } NS_ASSERTION(gfxPlatform::GetPlatform(), "the singleton instance has gone"); gfxPlatform::GetPlatform()->FontsPrefsChanged(NS_ConvertUTF16toUTF8(someData).get()); return NS_OK; } class MemoryPressureObserver final : public nsIObserver { ~MemoryPressureObserver() {} public: NS_DECL_ISUPPORTS NS_DECL_NSIOBSERVER }; NS_IMPL_ISUPPORTS(MemoryPressureObserver, nsIObserver) NS_IMETHODIMP MemoryPressureObserver::Observe(nsISupports *aSubject, const char *aTopic, const char16_t *someData) { NS_ASSERTION(strcmp(aTopic, "memory-pressure") == 0, "unexpected event topic"); Factory::PurgeAllCaches(); gfxGradientCache::PurgeAllCaches(); gfxPlatform::GetPlatform()->PurgeSkiaCache(); return NS_OK; } // xxx - this can probably be eliminated by reworking pref font handling code static const char *gPrefLangNames[] = { #define FONT_PREF_LANG(enum_id_, str_, atom_id_) str_ #include "gfxFontPrefLangList.h" #undef FONT_PREF_LANG }; static nsIAtom* PrefLangToLangGroups(uint32_t aIndex) { // static array here avoids static constructor static nsIAtom* gPrefLangToLangGroups[] = { #define FONT_PREF_LANG(enum_id_, str_, atom_id_) nsGkAtoms::atom_id_ #include "gfxFontPrefLangList.h" #undef FONT_PREF_LANG }; return aIndex < ArrayLength(gPrefLangToLangGroups) ? gPrefLangToLangGroups[aIndex] : nsGkAtoms::Unicode; } gfxPlatform::gfxPlatform() : mTileWidth(-1) , mTileHeight(-1) , mAzureCanvasBackendCollector(this, &gfxPlatform::GetAzureBackendInfo) , mApzSupportCollector(this, &gfxPlatform::GetApzSupportInfo) , mCompositorBackend(layers::LayersBackend::LAYERS_NONE) { mAllowDownloadableFonts = UNINITIALIZED_VALUE; mFallbackUsesCmaps = UNINITIALIZED_VALUE; mWordCacheCharLimit = UNINITIALIZED_VALUE; mWordCacheMaxEntries = UNINITIALIZED_VALUE; mGraphiteShapingEnabled = UNINITIALIZED_VALUE; mOpenTypeSVGEnabled = UNINITIALIZED_VALUE; mBidiNumeralOption = UNINITIALIZED_VALUE; mSkiaGlue = nullptr; uint32_t canvasMask = BackendTypeBit(BackendType::CAIRO) | BackendTypeBit(BackendType::SKIA); uint32_t contentMask = BackendTypeBit(BackendType::CAIRO); InitBackendPrefs(canvasMask, BackendType::CAIRO, contentMask, BackendType::CAIRO); mTotalSystemMemory = mozilla::hal::GetTotalSystemMemory(); // give HMDs a chance to be initialized very early on VRHMDManager::ManagerInit(); } gfxPlatform* gfxPlatform::GetPlatform() { if (!gPlatform) { Init(); } return gPlatform; } bool gfxPlatform::Initialized() { return !!gPlatform; } void RecordingPrefChanged(const char *aPrefName, void *aClosure) { if (Preferences::GetBool("gfx.2d.recording", false)) { nsAutoCString fileName; nsAdoptingString prefFileName = Preferences::GetString("gfx.2d.recordingfile"); if (prefFileName) { fileName.Append(NS_ConvertUTF16toUTF8(prefFileName)); } else { nsCOMPtr tmpFile; if (NS_FAILED(NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(tmpFile)))) { return; } fileName.AppendPrintf("moz2drec_%i_%i.aer", XRE_GetProcessType(), getpid()); nsresult rv = tmpFile->AppendNative(fileName); if (NS_FAILED(rv)) return; rv = tmpFile->GetNativePath(fileName); if (NS_FAILED(rv)) return; } gPlatform->mRecorder = Factory::CreateEventRecorderForFile(fileName.BeginReading()); printf_stderr("Recording to %s\n", fileName.get()); Factory::SetGlobalEventRecorder(gPlatform->mRecorder); } else { Factory::SetGlobalEventRecorder(nullptr); } } void gfxPlatform::Init() { MOZ_RELEASE_ASSERT(NS_IsMainThread()); if (gEverInitialized) { NS_RUNTIMEABORT("Already started???"); } gEverInitialized = true; CrashStatsLogForwarder* logForwarder = new CrashStatsLogForwarder("GraphicsCriticalError"); mozilla::gfx::Factory::SetLogForwarder(logForwarder); // Initialize the preferences by creating the singleton. gfxPrefs::GetSingleton(); logForwarder->SetCircularBufferSize(gfxPrefs::GfxLoggingCrashLength()); gGfxPlatformPrefsLock = new Mutex("gfxPlatform::gGfxPlatformPrefsLock"); /* Initialize the GfxInfo service. * Note: we can't call functions on GfxInfo that depend * on gPlatform until after it has been initialized * below. GfxInfo initialization annotates our * crash reports so we want to do it before * we try to load any drivers and do device detection * incase that code crashes. See bug #591561. */ nsCOMPtr gfxInfo; /* this currently will only succeed on Windows */ gfxInfo = services::GetGfxInfo(); #if defined(XP_WIN) gPlatform = new gfxWindowsPlatform; #elif defined(XP_MACOSX) gPlatform = new gfxPlatformMac; #elif defined(MOZ_WIDGET_GTK) gPlatform = new gfxPlatformGtk; #elif defined(MOZ_WIDGET_QT) gPlatform = new gfxQtPlatform; #elif defined(ANDROID) gPlatform = new gfxAndroidPlatform; #else #error "No gfxPlatform implementation available" #endif #ifdef MOZ_GL_DEBUG GLContext::StaticInit(); #endif InitLayersAccelerationPrefs(); InitLayersIPC(); nsresult rv; bool usePlatformFontList = true; #if defined(MOZ_WIDGET_GTK) usePlatformFontList = gfxPlatformGtk::UseFcFontList(); #elif defined(MOZ_WIDGET_QT) usePlatformFontList = false; #endif if (usePlatformFontList) { rv = gfxPlatformFontList::Init(); if (NS_FAILED(rv)) { NS_RUNTIMEABORT("Could not initialize gfxPlatformFontList"); } } gPlatform->mScreenReferenceSurface = gPlatform->CreateOffscreenSurface(IntSize(1, 1), gfxImageFormat::ARGB32); if (!gPlatform->mScreenReferenceSurface) { NS_RUNTIMEABORT("Could not initialize mScreenReferenceSurface"); } gPlatform->mScreenReferenceDrawTarget = gPlatform->CreateOffscreenContentDrawTarget(IntSize(1, 1), SurfaceFormat::B8G8R8A8); if (!gPlatform->mScreenReferenceDrawTarget) { NS_RUNTIMEABORT("Could not initialize mScreenReferenceDrawTarget"); } rv = gfxFontCache::Init(); if (NS_FAILED(rv)) { NS_RUNTIMEABORT("Could not initialize gfxFontCache"); } /* Create and register our CMS Override observer. */ gPlatform->mSRGBOverrideObserver = new SRGBOverrideObserver(); Preferences::AddWeakObserver(gPlatform->mSRGBOverrideObserver, GFX_PREF_CMS_FORCE_SRGB); gPlatform->mFontPrefsObserver = new FontPrefsObserver(); Preferences::AddStrongObservers(gPlatform->mFontPrefsObserver, kObservedPrefs); GLContext::PlatformStartup(); #ifdef MOZ_WIDGET_ANDROID // Texture pool init TexturePoolOGL::Init(); #endif #ifdef MOZ_WIDGET_GONK mozilla::layers::InitGralloc(); #endif Preferences::RegisterCallbackAndCall(RecordingPrefChanged, "gfx.2d.recording", nullptr); CreateCMSOutputProfile(); // Listen to memory pressure event so we can purge DrawTarget caches nsCOMPtr obs = mozilla::services::GetObserverService(); if (obs) { gPlatform->mMemoryPressureObserver = new MemoryPressureObserver(); obs->AddObserver(gPlatform->mMemoryPressureObserver, "memory-pressure", false); } // Request the imgITools service, implicitly initializing ImageLib. nsCOMPtr imgTools = do_GetService("@mozilla.org/image/tools;1"); if (!imgTools) { NS_RUNTIMEABORT("Could not initialize ImageLib"); } RegisterStrongMemoryReporter(new GfxMemoryImageReporter()); if (XRE_IsParentProcess() && gfxPrefs::HardwareVsyncEnabled()) { gPlatform->mVsyncSource = gPlatform->CreateHardwareVsyncSource(); } } static bool sLayersIPCIsUp = false; void gfxPlatform::Shutdown() { if (!gPlatform) { return; } MOZ_ASSERT(!sLayersIPCIsUp); // These may be called before the corresponding subsystems have actually // started up. That's OK, they can handle it. gfxFontCache::Shutdown(); gfxFontGroup::Shutdown(); gfxGradientCache::Shutdown(); gfxAlphaBoxBlur::ShutdownBlurCache(); gfxGraphiteShaper::Shutdown(); gfxPlatformFontList::Shutdown(); ShutdownTileCache(); // Free the various non-null transforms and loaded profiles ShutdownCMS(); // In some cases, gPlatform may not be created but Shutdown() called, // e.g., during xpcshell tests. if (gPlatform) { /* Unregister our CMS Override callback. */ NS_ASSERTION(gPlatform->mSRGBOverrideObserver, "mSRGBOverrideObserver has alreay gone"); Preferences::RemoveObserver(gPlatform->mSRGBOverrideObserver, GFX_PREF_CMS_FORCE_SRGB); gPlatform->mSRGBOverrideObserver = nullptr; NS_ASSERTION(gPlatform->mFontPrefsObserver, "mFontPrefsObserver has alreay gone"); Preferences::RemoveObservers(gPlatform->mFontPrefsObserver, kObservedPrefs); gPlatform->mFontPrefsObserver = nullptr; NS_ASSERTION(gPlatform->mMemoryPressureObserver, "mMemoryPressureObserver has already gone"); nsCOMPtr obs = mozilla::services::GetObserverService(); if (obs) { obs->RemoveObserver(gPlatform->mMemoryPressureObserver, "memory-pressure"); } gPlatform->mMemoryPressureObserver = nullptr; gPlatform->mSkiaGlue = nullptr; gPlatform->mVsyncSource = nullptr; } #ifdef MOZ_WIDGET_ANDROID // Shut down the texture pool TexturePoolOGL::Shutdown(); #endif // Shut down the default GL context provider. GLContextProvider::Shutdown(); #if defined(XP_WIN) // The above shutdown calls operate on the available context providers on // most platforms. Windows is a "special snowflake", though, and has three // context providers available, so we have to shut all of them down. // We should only support the default GL provider on Windows; then, this // could go away. Unfortunately, we currently support WGL (the default) for // WebGL on Optimus. GLContextProviderEGL::Shutdown(); #endif // This is a bit iffy - we're assuming that we were the ones that set the // log forwarder in the Factory, so that it's our responsibility to // delete it. delete mozilla::gfx::Factory::GetLogForwarder(); mozilla::gfx::Factory::SetLogForwarder(nullptr); delete gGfxPlatformPrefsLock; gfxPrefs::DestroySingleton(); gfxFont::DestroySingletons(); delete gPlatform; gPlatform = nullptr; } /* static */ void gfxPlatform::InitLayersIPC() { if (sLayersIPCIsUp) { return; } sLayersIPCIsUp = true; AsyncTransactionTrackersHolder::Initialize(); if (XRE_IsParentProcess()) { mozilla::layers::CompositorParent::StartUp(); #ifdef MOZ_WIDGET_GONK SharedBufferManagerChild::StartUp(); #endif mozilla::layers::ImageBridgeChild::StartUp(); } } /* static */ void gfxPlatform::ShutdownLayersIPC() { if (!sLayersIPCIsUp) { return; } sLayersIPCIsUp = false; if (XRE_IsParentProcess()) { // This must happen after the shutdown of media and widgets, which // are triggered by the NS_XPCOM_SHUTDOWN_OBSERVER_ID notification. layers::ImageBridgeChild::ShutDown(); #ifdef MOZ_WIDGET_GONK layers::SharedBufferManagerChild::ShutDown(); #endif layers::CompositorParent::ShutDown(); } } gfxPlatform::~gfxPlatform() { mScreenReferenceSurface = nullptr; mScreenReferenceDrawTarget = nullptr; // Clean up any VR stuff VRHMDManager::ManagerDestroy(); // The cairo folks think we should only clean up in debug builds, // but we're generally in the habit of trying to shut down as // cleanly as possible even in production code, so call this // cairo_debug_* function unconditionally. // // because cairo can assert and thus crash on shutdown, don't do this in release builds #if defined(DEBUG) || defined(NS_BUILD_REFCNT_LOGGING) || defined(MOZ_VALGRIND) #ifdef USE_SKIA // must do Skia cleanup before Cairo cleanup, because Skia may be referencing // Cairo objects e.g. through SkCairoFTTypeface SkGraphics::Term(); #endif #if MOZ_TREE_CAIRO cairo_debug_reset_static_data(); #endif #endif } cairo_user_data_key_t kDrawTarget; already_AddRefed gfxPlatform::CreateDrawTargetForSurface(gfxASurface *aSurface, const IntSize& aSize) { SurfaceFormat format = aSurface->GetSurfaceFormat(); RefPtr drawTarget = Factory::CreateDrawTargetForCairoSurface(aSurface->CairoSurface(), aSize, &format); if (!drawTarget) { gfxWarning() << "gfxPlatform::CreateDrawTargetForSurface failed in CreateDrawTargetForCairoSurface"; return nullptr; } aSurface->SetData(&kDrawTarget, drawTarget, nullptr); return drawTarget.forget(); } // This is a temporary function used by ContentClient to build a DrawTarget // around the gfxASurface. This should eventually be replaced by plumbing // the DrawTarget through directly already_AddRefed gfxPlatform::CreateDrawTargetForUpdateSurface(gfxASurface *aSurface, const IntSize& aSize) { #ifdef XP_MACOSX // this is a bit of a hack that assumes that the buffer associated with the CGContext // will live around long enough that nothing bad will happen. if (aSurface->GetType() == gfxSurfaceType::Quartz) { return Factory::CreateDrawTargetForCairoCGContext(static_cast(aSurface)->GetCGContext(), aSize); } #endif MOZ_CRASH(); return nullptr; } cairo_user_data_key_t kSourceSurface; /** * Record the backend that was used to construct the SourceSurface. * When getting the cached SourceSurface for a gfxASurface/DrawTarget pair, * we check to make sure the DrawTarget's backend matches the backend * for the cached SourceSurface, and only use it if they match. This * can avoid expensive and unnecessary readbacks. */ struct SourceSurfaceUserData { RefPtr mSrcSurface; BackendType mBackendType; }; void SourceBufferDestroy(void *srcSurfUD) { delete static_cast(srcSurfUD); } UserDataKey kThebesSurface; struct DependentSourceSurfaceUserData { nsRefPtr mSurface; }; void SourceSurfaceDestroyed(void *aData) { delete static_cast(aData); } void gfxPlatform::ClearSourceSurfaceForSurface(gfxASurface *aSurface) { aSurface->SetData(&kSourceSurface, nullptr, nullptr); } /* static */ already_AddRefed gfxPlatform::GetSourceSurfaceForSurface(DrawTarget *aTarget, gfxASurface *aSurface) { if (!aSurface->CairoSurface() || aSurface->CairoStatus()) { return nullptr; } if (!aTarget) { aTarget = gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget(); if (!aTarget) { return nullptr; } } void *userData = aSurface->GetData(&kSourceSurface); if (userData) { SourceSurfaceUserData *surf = static_cast(userData); if (surf->mSrcSurface->IsValid() && surf->mBackendType == aTarget->GetBackendType()) { RefPtr srcSurface(surf->mSrcSurface); return srcSurface.forget(); } // We can just continue here as when setting new user data the destroy // function will be called for the old user data. } SurfaceFormat format = aSurface->GetSurfaceFormat(); if (aTarget->GetBackendType() == BackendType::CAIRO) { // If we're going to be used with a CAIRO DrawTarget, then just create a // SourceSurfaceCairo since we don't know the underlying type of the CAIRO // DrawTarget and can't pick a better surface type. Doing this also avoids // readback of aSurface's surface into memory if, for example, aSurface // wraps an xlib cairo surface (which can be important to avoid a major // slowdown). NativeSurface surf; surf.mFormat = format; surf.mType = NativeSurfaceType::CAIRO_SURFACE; surf.mSurface = aSurface->CairoSurface(); surf.mSize = aSurface->GetSize(); // We return here regardless of whether CreateSourceSurfaceFromNativeSurface // succeeds or not since we don't expect to be able to do any better below // if it fails. // // Note that the returned SourceSurfaceCairo holds a strong reference to // the cairo_surface_t* that it wraps, which essencially means it holds a // strong reference to aSurface since aSurface shares its // cairo_surface_t*'s reference count variable. As a result we can't cache // srcBuffer on aSurface (see below) since aSurface would then hold a // strong reference back to srcBuffer, creating a reference loop and a // memory leak. Not caching is fine since wrapping is cheap enough (no // copying) so we can just wrap again next time we're called. return aTarget->CreateSourceSurfaceFromNativeSurface(surf); } RefPtr srcBuffer; // Currently no other DrawTarget types implement CreateSourceSurfaceFromNativeSurface if (!srcBuffer) { // If aSurface wraps data, we can create a SourceSurfaceRawData that wraps // the same data, then optimize it for aTarget: RefPtr surf = GetWrappedDataSourceSurface(aSurface); if (surf) { srcBuffer = aTarget->OptimizeSourceSurface(surf); if (srcBuffer == surf) { // GetWrappedDataSourceSurface returns a SourceSurface that holds a // strong reference to aSurface since it wraps aSurface's data and // needs it to stay alive. As a result we can't cache srcBuffer on // aSurface (below) since aSurface would then hold a strong reference // back to srcBuffer, creating a reference loop and a memory leak. Not // caching is fine since wrapping is cheap enough (no copying) so we // can just wrap again next time we're called. // // Note that the check below doesn't catch this since srcBuffer will be a // SourceSurfaceRawData object (even if aSurface is not a gfxImageSurface // object), which is why we need this separate check. return srcBuffer.forget(); } } } if (!srcBuffer) { MOZ_ASSERT(aTarget->GetBackendType() != BackendType::CAIRO, "We already tried CreateSourceSurfaceFromNativeSurface with a " "DrawTargetCairo above"); // We've run out of performant options. We now try creating a SourceSurface // using a temporary DrawTargetCairo and then optimizing it to aTarget's // actual type. The CreateSourceSurfaceFromNativeSurface() call will // likely create a DataSourceSurface (possibly involving copying and/or // readback), and the OptimizeSourceSurface may well copy again and upload // to the GPU. So, while this code path is rarely hit, hitting it may be // very slow. NativeSurface surf; surf.mFormat = format; surf.mType = NativeSurfaceType::CAIRO_SURFACE; surf.mSurface = aSurface->CairoSurface(); surf.mSize = aSurface->GetSize(); RefPtr drawTarget = Factory::CreateDrawTarget(BackendType::CAIRO, IntSize(1, 1), format); if (!drawTarget) { gfxWarning() << "gfxPlatform::GetSourceSurfaceForSurface failed in CreateDrawTarget"; return nullptr; } srcBuffer = drawTarget->CreateSourceSurfaceFromNativeSurface(surf); if (srcBuffer) { srcBuffer = aTarget->OptimizeSourceSurface(srcBuffer); } } if (!srcBuffer) { return nullptr; } if ((srcBuffer->GetType() == SurfaceType::CAIRO && static_cast(srcBuffer.get())->GetSurface() == aSurface->CairoSurface()) || (srcBuffer->GetType() == SurfaceType::CAIRO_IMAGE && static_cast(srcBuffer.get())->GetSurface() == aSurface->CairoSurface())) { // See the "Note that the returned SourceSurfaceCairo..." comment above. return srcBuffer.forget(); } // Add user data to aSurface so we can cache lookups in the future. SourceSurfaceUserData *srcSurfUD = new SourceSurfaceUserData; srcSurfUD->mBackendType = aTarget->GetBackendType(); srcSurfUD->mSrcSurface = srcBuffer; aSurface->SetData(&kSourceSurface, srcSurfUD, SourceBufferDestroy); return srcBuffer.forget(); } already_AddRefed gfxPlatform::GetWrappedDataSourceSurface(gfxASurface* aSurface) { nsRefPtr image = aSurface->GetAsImageSurface(); if (!image) { return nullptr; } RefPtr result = Factory::CreateWrappingDataSourceSurface(image->Data(), image->Stride(), image->GetSize(), ImageFormatToSurfaceFormat(image->Format())); if (!result) { return nullptr; } // If we wrapped the underlying data of aSurface, then we need to add user data // to make sure aSurface stays alive until we are done with the data. DependentSourceSurfaceUserData *srcSurfUD = new DependentSourceSurfaceUserData; srcSurfUD->mSurface = aSurface; result->AddUserData(&kThebesSurface, srcSurfUD, SourceSurfaceDestroyed); return result.forget(); } already_AddRefed gfxPlatform::GetScaledFontForFont(DrawTarget* aTarget, gfxFont *aFont) { NativeFont nativeFont; nativeFont.mType = NativeFontType::CAIRO_FONT_FACE; nativeFont.mFont = aFont->GetCairoScaledFont(); return Factory::CreateScaledFontForNativeFont(nativeFont, aFont->GetAdjustedSize()); } int gfxPlatform::GetTileWidth() { MOZ_ASSERT(mTileWidth != -1); return mTileWidth; } int gfxPlatform::GetTileHeight() { MOZ_ASSERT(mTileHeight != -1); return mTileHeight; } void gfxPlatform::SetTileSize(int aWidth, int aHeight) { // Don't allow changing the tile size after we've set it. // Right now the code assumes that the tile size doesn't change. MOZ_ASSERT((mTileWidth == -1 && mTileHeight == -1) || (mTileWidth == aWidth && mTileHeight == aHeight)); mTileWidth = aWidth; mTileHeight = aHeight; } void gfxPlatform::ComputeTileSize() { // The tile size should be picked in the parent processes // and sent to the child processes over IPDL GetTileSize. if (!XRE_IsParentProcess()) { NS_RUNTIMEABORT("wrong process."); } int32_t w = gfxPrefs::LayersTileWidth(); int32_t h = gfxPrefs::LayersTileHeight(); // TODO We may want to take the screen size into consideration here. if (gfxPrefs::LayersTilesAdjust()) { #ifdef MOZ_WIDGET_GONK int32_t format = android::PIXEL_FORMAT_RGBA_8888; android::sp alloc = new android::GraphicBuffer(gfxPrefs::LayersTileWidth(), gfxPrefs::LayersTileHeight(), format, android::GraphicBuffer::USAGE_SW_READ_OFTEN | android::GraphicBuffer::USAGE_SW_WRITE_OFTEN | android::GraphicBuffer::USAGE_HW_TEXTURE); if (alloc.get()) { w = alloc->getStride(); // We want the tiles to be gralloc stride aligned. // No need to adjust the height here. } #endif } SetTileSize(w, h); } bool gfxPlatform::SupportsAzureContentForDrawTarget(DrawTarget* aTarget) { if (!aTarget) { return false; } return SupportsAzureContentForType(aTarget->GetBackendType()); } bool gfxPlatform::UseAcceleratedSkiaCanvas() { return gfxPrefs::CanvasAzureAccelerated() && mPreferredCanvasBackend == BackendType::SKIA; } bool gfxPlatform::HaveChoiceOfHWAndSWCanvas() { return mPreferredCanvasBackend == BackendType::SKIA; } void gfxPlatform::InitializeSkiaCacheLimits() { if (UseAcceleratedSkiaCanvas()) { #ifdef USE_SKIA_GPU bool usingDynamicCache = gfxPrefs::CanvasSkiaGLDynamicCache(); int cacheItemLimit = gfxPrefs::CanvasSkiaGLCacheItems(); int cacheSizeLimit = gfxPrefs::CanvasSkiaGLCacheSize(); // Prefs are in megabytes, but we want the sizes in bytes cacheSizeLimit *= 1024*1024; if (usingDynamicCache) { if (mTotalSystemMemory < 512*1024*1024) { // We need a very minimal cache on anything smaller than 512mb. // Note the large jump as we cross 512mb (from 2mb to 32mb). cacheSizeLimit = 2*1024*1024; } else if (mTotalSystemMemory > 0) { cacheSizeLimit = mTotalSystemMemory / 16; } } #ifdef DEBUG printf_stderr("Determined SkiaGL cache limits: Size %i, Items: %i\n", cacheSizeLimit, cacheItemLimit); #endif mSkiaGlue->GetGrContext()->setResourceCacheLimits(cacheItemLimit, cacheSizeLimit); #endif } } SkiaGLGlue* gfxPlatform::GetSkiaGLGlue() { #ifdef USE_SKIA_GPU if (!mSkiaGlue) { /* Dummy context. We always draw into a FBO. * * FIXME: This should be stored in TLS or something, since there needs to be one for each thread using it. As it * stands, this only works on the main thread. */ nsRefPtr glContext; glContext = GLContextProvider::CreateHeadless(CreateContextFlags::REQUIRE_COMPAT_PROFILE | CreateContextFlags::ALLOW_OFFLINE_RENDERER); if (!glContext) { printf_stderr("Failed to create GLContext for SkiaGL!\n"); return nullptr; } mSkiaGlue = new SkiaGLGlue(glContext); MOZ_ASSERT(mSkiaGlue->GetGrContext(), "No GrContext"); InitializeSkiaCacheLimits(); } #endif return mSkiaGlue; } void gfxPlatform::PurgeSkiaCache() { #ifdef USE_SKIA_GPU if (!mSkiaGlue) return; mSkiaGlue->GetGrContext()->freeGpuResources(); // GrContext::flush() doesn't call glFlush. Call it here. mSkiaGlue->GetGLContext()->MakeCurrent(); mSkiaGlue->GetGLContext()->fFlush(); #endif } bool gfxPlatform::HasEnoughTotalSystemMemoryForSkiaGL() { #ifdef MOZ_WIDGET_GONK if (mTotalSystemMemory < 250*1024*1024) { return false; } #endif return true; } already_AddRefed gfxPlatform::CreateDrawTargetForBackend(BackendType aBackend, const IntSize& aSize, SurfaceFormat aFormat) { // There is a bunch of knowledge in the gfxPlatform heirarchy about how to // create the best offscreen surface for the current system and situation. We // can easily take advantage of this for the Cairo backend, so that's what we // do. // mozilla::gfx::Factory can get away without having all this knowledge for // now, but this might need to change in the future (using // CreateOffscreenSurface() and CreateDrawTargetForSurface() for all // backends). if (aBackend == BackendType::CAIRO) { nsRefPtr surf = CreateOffscreenSurface(aSize, SurfaceFormatToImageFormat(aFormat)); if (!surf || surf->CairoStatus()) { return nullptr; } return CreateDrawTargetForSurface(surf, aSize); } else { return Factory::CreateDrawTarget(aBackend, aSize, aFormat); } } already_AddRefed gfxPlatform::CreateOffscreenCanvasDrawTarget(const IntSize& aSize, SurfaceFormat aFormat) { NS_ASSERTION(mPreferredCanvasBackend != BackendType::NONE, "No backend."); RefPtr target = CreateDrawTargetForBackend(mPreferredCanvasBackend, aSize, aFormat); if (target || mFallbackCanvasBackend == BackendType::NONE) { return target.forget(); } #ifdef XP_WIN // On Windows, the fallback backend (Cairo) should use its image backend. return Factory::CreateDrawTarget(mFallbackCanvasBackend, aSize, aFormat); #else return CreateDrawTargetForBackend(mFallbackCanvasBackend, aSize, aFormat); #endif } already_AddRefed gfxPlatform::CreateOffscreenContentDrawTarget(const IntSize& aSize, SurfaceFormat aFormat) { NS_ASSERTION(mPreferredCanvasBackend != BackendType::NONE, "No backend."); return CreateDrawTargetForBackend(mContentBackend, aSize, aFormat); } already_AddRefed gfxPlatform::CreateDrawTargetForData(unsigned char* aData, const IntSize& aSize, int32_t aStride, SurfaceFormat aFormat) { NS_ASSERTION(mContentBackend != BackendType::NONE, "No backend."); BackendType backendType = mContentBackend; if (!Factory::DoesBackendSupportDataDrawtarget(mContentBackend)) { backendType = BackendType::CAIRO; } RefPtr dt = Factory::CreateDrawTargetForData(backendType, aData, aSize, aStride, aFormat); return dt.forget(); } /* static */ BackendType gfxPlatform::BackendTypeForName(const nsCString& aName) { if (aName.EqualsLiteral("cairo")) return BackendType::CAIRO; if (aName.EqualsLiteral("skia")) return BackendType::SKIA; if (aName.EqualsLiteral("direct2d")) return BackendType::DIRECT2D; if (aName.EqualsLiteral("direct2d1.1")) return BackendType::DIRECT2D1_1; if (aName.EqualsLiteral("cg")) return BackendType::COREGRAPHICS; return BackendType::NONE; } nsresult gfxPlatform::GetFontList(nsIAtom *aLangGroup, const nsACString& aGenericFamily, nsTArray& aListOfFonts) { return NS_ERROR_NOT_IMPLEMENTED; } nsresult gfxPlatform::UpdateFontList() { return NS_ERROR_NOT_IMPLEMENTED; } bool gfxPlatform::DownloadableFontsEnabled() { if (mAllowDownloadableFonts == UNINITIALIZED_VALUE) { mAllowDownloadableFonts = Preferences::GetBool(GFX_DOWNLOADABLE_FONTS_ENABLED, false); } return mAllowDownloadableFonts; } bool gfxPlatform::UseCmapsDuringSystemFallback() { if (mFallbackUsesCmaps == UNINITIALIZED_VALUE) { mFallbackUsesCmaps = Preferences::GetBool(GFX_PREF_FALLBACK_USE_CMAPS, false); } return mFallbackUsesCmaps; } bool gfxPlatform::OpenTypeSVGEnabled() { if (mOpenTypeSVGEnabled == UNINITIALIZED_VALUE) { mOpenTypeSVGEnabled = Preferences::GetBool(GFX_PREF_OPENTYPE_SVG, false); } return mOpenTypeSVGEnabled > 0; } uint32_t gfxPlatform::WordCacheCharLimit() { if (mWordCacheCharLimit == UNINITIALIZED_VALUE) { mWordCacheCharLimit = Preferences::GetInt(GFX_PREF_WORD_CACHE_CHARLIMIT, 32); if (mWordCacheCharLimit < 0) { mWordCacheCharLimit = 32; } } return uint32_t(mWordCacheCharLimit); } uint32_t gfxPlatform::WordCacheMaxEntries() { if (mWordCacheMaxEntries == UNINITIALIZED_VALUE) { mWordCacheMaxEntries = Preferences::GetInt(GFX_PREF_WORD_CACHE_MAXENTRIES, 10000); if (mWordCacheMaxEntries < 0) { mWordCacheMaxEntries = 10000; } } return uint32_t(mWordCacheMaxEntries); } bool gfxPlatform::UseGraphiteShaping() { if (mGraphiteShapingEnabled == UNINITIALIZED_VALUE) { mGraphiteShapingEnabled = Preferences::GetBool(GFX_PREF_GRAPHITE_SHAPING, false); } return mGraphiteShapingEnabled; } gfxFontEntry* gfxPlatform::MakePlatformFont(const nsAString& aFontName, uint16_t aWeight, int16_t aStretch, bool aItalic, const uint8_t* aFontData, uint32_t aLength) { // Default implementation does not handle activating downloaded fonts; // just free the data and return. // Platforms that support @font-face must override this, // using the data to instantiate the font, and taking responsibility // for freeing it when no longer required. if (aFontData) { free((void*)aFontData); } return nullptr; } bool gfxPlatform::ForEachPrefFont(eFontPrefLang aLangArray[], uint32_t aLangArrayLen, PrefFontCallback aCallback, void *aClosure) { NS_ENSURE_TRUE(Preferences::GetRootBranch(), false); uint32_t i; for (i = 0; i < aLangArrayLen; i++) { eFontPrefLang prefLang = aLangArray[i]; const char *langGroup = GetPrefLangName(prefLang); nsAutoCString prefName; prefName.AssignLiteral("font.default."); prefName.Append(langGroup); nsAdoptingCString genericDotLang = Preferences::GetCString(prefName.get()); genericDotLang.Append('.'); genericDotLang.Append(langGroup); // fetch font.name.xxx value prefName.AssignLiteral("font.name."); prefName.Append(genericDotLang); nsAdoptingCString nameValue = Preferences::GetCString(prefName.get()); if (nameValue) { if (!aCallback(prefLang, NS_ConvertUTF8toUTF16(nameValue), aClosure)) return false; } // fetch font.name-list.xxx value prefName.AssignLiteral("font.name-list."); prefName.Append(genericDotLang); nsAdoptingCString nameListValue = Preferences::GetCString(prefName.get()); if (nameListValue && !nameListValue.Equals(nameValue)) { const char kComma = ','; const char *p, *p_end; nsAutoCString list(nameListValue); list.BeginReading(p); list.EndReading(p_end); while (p < p_end) { while (nsCRT::IsAsciiSpace(*p)) { if (++p == p_end) break; } if (p == p_end) break; const char *start = p; while (++p != p_end && *p != kComma) /* nothing */ ; nsAutoCString fontName(Substring(start, p)); fontName.CompressWhitespace(false, true); if (!aCallback(prefLang, NS_ConvertUTF8toUTF16(fontName), aClosure)) return false; p++; } } } return true; } eFontPrefLang gfxPlatform::GetFontPrefLangFor(const char* aLang) { if (!aLang || !aLang[0]) { return eFontPrefLang_Others; } for (uint32_t i = 0; i < ArrayLength(gPrefLangNames); ++i) { if (!PL_strcasecmp(gPrefLangNames[i], aLang)) { return eFontPrefLang(i); } } return eFontPrefLang_Others; } eFontPrefLang gfxPlatform::GetFontPrefLangFor(nsIAtom *aLang) { if (!aLang) return eFontPrefLang_Others; nsAutoCString lang; aLang->ToUTF8String(lang); return GetFontPrefLangFor(lang.get()); } nsIAtom* gfxPlatform::GetLangGroupForPrefLang(eFontPrefLang aLang) { // the special CJK set pref lang should be resolved into separate // calls to individual CJK pref langs before getting here NS_ASSERTION(aLang != eFontPrefLang_CJKSet, "unresolved CJK set pref lang"); return PrefLangToLangGroups(uint32_t(aLang)); } const char* gfxPlatform::GetPrefLangName(eFontPrefLang aLang) { if (uint32_t(aLang) < ArrayLength(gPrefLangNames)) { return gPrefLangNames[uint32_t(aLang)]; } return nullptr; } eFontPrefLang gfxPlatform::GetFontPrefLangFor(uint8_t aUnicodeRange) { switch (aUnicodeRange) { case kRangeSetLatin: return eFontPrefLang_Western; case kRangeCyrillic: return eFontPrefLang_Cyrillic; case kRangeGreek: return eFontPrefLang_Greek; case kRangeHebrew: return eFontPrefLang_Hebrew; case kRangeArabic: return eFontPrefLang_Arabic; case kRangeThai: return eFontPrefLang_Thai; case kRangeKorean: return eFontPrefLang_Korean; case kRangeJapanese: return eFontPrefLang_Japanese; case kRangeSChinese: return eFontPrefLang_ChineseCN; case kRangeTChinese: return eFontPrefLang_ChineseTW; case kRangeDevanagari: return eFontPrefLang_Devanagari; case kRangeTamil: return eFontPrefLang_Tamil; case kRangeArmenian: return eFontPrefLang_Armenian; case kRangeBengali: return eFontPrefLang_Bengali; case kRangeCanadian: return eFontPrefLang_Canadian; case kRangeEthiopic: return eFontPrefLang_Ethiopic; case kRangeGeorgian: return eFontPrefLang_Georgian; case kRangeGujarati: return eFontPrefLang_Gujarati; case kRangeGurmukhi: return eFontPrefLang_Gurmukhi; case kRangeKhmer: return eFontPrefLang_Khmer; case kRangeMalayalam: return eFontPrefLang_Malayalam; case kRangeOriya: return eFontPrefLang_Oriya; case kRangeTelugu: return eFontPrefLang_Telugu; case kRangeKannada: return eFontPrefLang_Kannada; case kRangeSinhala: return eFontPrefLang_Sinhala; case kRangeTibetan: return eFontPrefLang_Tibetan; case kRangeSetCJK: return eFontPrefLang_CJKSet; default: return eFontPrefLang_Others; } } bool gfxPlatform::IsLangCJK(eFontPrefLang aLang) { switch (aLang) { case eFontPrefLang_Japanese: case eFontPrefLang_ChineseTW: case eFontPrefLang_ChineseCN: case eFontPrefLang_ChineseHK: case eFontPrefLang_Korean: case eFontPrefLang_CJKSet: return true; default: return false; } } mozilla::layers::DiagnosticTypes gfxPlatform::GetLayerDiagnosticTypes() { mozilla::layers::DiagnosticTypes type = DiagnosticTypes::NO_DIAGNOSTIC; if (gfxPrefs::DrawLayerBorders()) { type |= mozilla::layers::DiagnosticTypes::LAYER_BORDERS; } if (gfxPrefs::DrawTileBorders()) { type |= mozilla::layers::DiagnosticTypes::TILE_BORDERS; } if (gfxPrefs::DrawBigImageBorders()) { type |= mozilla::layers::DiagnosticTypes::BIGIMAGE_BORDERS; } if (gfxPrefs::FlashLayerBorders()) { type |= mozilla::layers::DiagnosticTypes::FLASH_BORDERS; } return type; } void gfxPlatform::GetLangPrefs(eFontPrefLang aPrefLangs[], uint32_t &aLen, eFontPrefLang aCharLang, eFontPrefLang aPageLang) { if (IsLangCJK(aCharLang)) { AppendCJKPrefLangs(aPrefLangs, aLen, aCharLang, aPageLang); } else { AppendPrefLang(aPrefLangs, aLen, aCharLang); } AppendPrefLang(aPrefLangs, aLen, eFontPrefLang_Others); } void gfxPlatform::AppendCJKPrefLangs(eFontPrefLang aPrefLangs[], uint32_t &aLen, eFontPrefLang aCharLang, eFontPrefLang aPageLang) { // prefer the lang specified by the page *if* CJK if (IsLangCJK(aPageLang)) { AppendPrefLang(aPrefLangs, aLen, aPageLang); } // if not set up, set up the default CJK order, based on accept lang settings and locale if (mCJKPrefLangs.Length() == 0) { // temp array eFontPrefLang tempPrefLangs[kMaxLenPrefLangList]; uint32_t tempLen = 0; // Add the CJK pref fonts from accept languages, the order should be same order nsAdoptingCString list = Preferences::GetLocalizedCString("intl.accept_languages"); if (!list.IsEmpty()) { const char kComma = ','; const char *p, *p_end; list.BeginReading(p); list.EndReading(p_end); while (p < p_end) { while (nsCRT::IsAsciiSpace(*p)) { if (++p == p_end) break; } if (p == p_end) break; const char *start = p; while (++p != p_end && *p != kComma) /* nothing */ ; nsAutoCString lang(Substring(start, p)); lang.CompressWhitespace(false, true); eFontPrefLang fpl = gfxPlatform::GetFontPrefLangFor(lang.get()); switch (fpl) { case eFontPrefLang_Japanese: case eFontPrefLang_Korean: case eFontPrefLang_ChineseCN: case eFontPrefLang_ChineseHK: case eFontPrefLang_ChineseTW: AppendPrefLang(tempPrefLangs, tempLen, fpl); break; default: break; } p++; } } do { // to allow 'break' to abort this block if a call fails nsresult rv; nsCOMPtr ls = do_GetService(NS_LOCALESERVICE_CONTRACTID, &rv); if (NS_FAILED(rv)) break; nsCOMPtr appLocale; rv = ls->GetApplicationLocale(getter_AddRefs(appLocale)); if (NS_FAILED(rv)) break; nsString localeStr; rv = appLocale-> GetCategory(NS_LITERAL_STRING(NSILOCALE_MESSAGE), localeStr); if (NS_FAILED(rv)) break; const nsAString& lang = Substring(localeStr, 0, 2); if (lang.EqualsLiteral("ja")) { AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese); } else if (lang.EqualsLiteral("zh")) { const nsAString& region = Substring(localeStr, 3, 2); if (region.EqualsLiteral("CN")) { AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseCN); } else if (region.EqualsLiteral("TW")) { AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseTW); } else if (region.EqualsLiteral("HK")) { AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseHK); } } else if (lang.EqualsLiteral("ko")) { AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Korean); } } while (0); // last resort... (the order is same as old gfx.) AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese); AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Korean); AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseCN); AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseHK); AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseTW); // copy into the cached array uint32_t j; for (j = 0; j < tempLen; j++) { mCJKPrefLangs.AppendElement(tempPrefLangs[j]); } } // append in cached CJK langs uint32_t i, numCJKlangs = mCJKPrefLangs.Length(); for (i = 0; i < numCJKlangs; i++) { AppendPrefLang(aPrefLangs, aLen, (eFontPrefLang) (mCJKPrefLangs[i])); } } void gfxPlatform::AppendPrefLang(eFontPrefLang aPrefLangs[], uint32_t& aLen, eFontPrefLang aAddLang) { if (aLen >= kMaxLenPrefLangList) return; // make sure uint32_t i = 0; while (i < aLen && aPrefLangs[i] != aAddLang) { i++; } if (i == aLen) { aPrefLangs[aLen] = aAddLang; aLen++; } } void gfxPlatform::InitBackendPrefs(uint32_t aCanvasBitmask, BackendType aCanvasDefault, uint32_t aContentBitmask, BackendType aContentDefault) { mPreferredCanvasBackend = GetCanvasBackendPref(aCanvasBitmask); if (mPreferredCanvasBackend == BackendType::NONE) { mPreferredCanvasBackend = aCanvasDefault; } if (mPreferredCanvasBackend == BackendType::DIRECT2D1_1) { // Falling back to D2D 1.0 won't help us here. When D2D 1.1 DT creation // fails it means the surface was too big or there's something wrong with // the device. D2D 1.0 will encounter a similar situation. mFallbackCanvasBackend = GetCanvasBackendPref(aCanvasBitmask & ~(BackendTypeBit(mPreferredCanvasBackend) | BackendTypeBit(BackendType::DIRECT2D))); } else { mFallbackCanvasBackend = GetCanvasBackendPref(aCanvasBitmask & ~BackendTypeBit(mPreferredCanvasBackend)); } mContentBackendBitmask = aContentBitmask; mContentBackend = GetContentBackendPref(mContentBackendBitmask); if (mContentBackend == BackendType::NONE) { mContentBackend = aContentDefault; // mContentBackendBitmask is our canonical reference for supported // backends so we need to add the default if we are using it and // overriding the prefs. mContentBackendBitmask |= BackendTypeBit(aContentDefault); } } /* static */ BackendType gfxPlatform::GetCanvasBackendPref(uint32_t aBackendBitmask) { return GetBackendPref("gfx.canvas.azure.backends", aBackendBitmask); } /* static */ BackendType gfxPlatform::GetContentBackendPref(uint32_t &aBackendBitmask) { return GetBackendPref("gfx.content.azure.backends", aBackendBitmask); } /* static */ BackendType gfxPlatform::GetBackendPref(const char* aBackendPrefName, uint32_t &aBackendBitmask) { nsTArray backendList; nsCString prefString; if (NS_SUCCEEDED(Preferences::GetCString(aBackendPrefName, &prefString))) { ParseString(prefString, ',', backendList); } uint32_t allowedBackends = 0; BackendType result = BackendType::NONE; for (uint32_t i = 0; i < backendList.Length(); ++i) { BackendType type = BackendTypeForName(backendList[i]); if (BackendTypeBit(type) & aBackendBitmask) { allowedBackends |= BackendTypeBit(type); if (result == BackendType::NONE) { result = type; } } } aBackendBitmask = allowedBackends; return result; } bool gfxPlatform::InSafeMode() { static bool sSafeModeInitialized = false; static bool sInSafeMode = false; if (!sSafeModeInitialized) { sSafeModeInitialized = true; nsCOMPtr xr = do_GetService("@mozilla.org/xre/runtime;1"); if (xr) { xr->GetInSafeMode(&sInSafeMode); } } return sInSafeMode; } bool gfxPlatform::OffMainThreadCompositingEnabled() { return UsesOffMainThreadCompositing(); } eCMSMode gfxPlatform::GetCMSMode() { if (!gCMSInitialized) { int32_t mode = gfxPrefs::CMSMode(); if (mode >= 0 && mode < eCMSMode_AllCount) { gCMSMode = static_cast(mode); } bool enableV4 = gfxPrefs::CMSEnableV4(); if (enableV4) { qcms_enable_iccv4(); } gCMSInitialized = true; } return gCMSMode; } int gfxPlatform::GetRenderingIntent() { // gfxPrefs.h is using 0 as the default for the rendering // intent preference, based on that being the value for // QCMS_INTENT_DEFAULT. Assert here to catch if that ever // changes and we can then figure out what to do about it. MOZ_ASSERT(QCMS_INTENT_DEFAULT == 0); /* Try to query the pref system for a rendering intent. */ int32_t pIntent = gfxPrefs::CMSRenderingIntent(); if ((pIntent < QCMS_INTENT_MIN) || (pIntent > QCMS_INTENT_MAX)) { /* If the pref is out of range, use embedded profile. */ pIntent = -1; } return pIntent; } void gfxPlatform::TransformPixel(const Color& in, Color& out, qcms_transform *transform) { if (transform) { /* we want the bytes in RGB order */ #ifdef IS_LITTLE_ENDIAN /* ABGR puts the bytes in |RGBA| order on little endian */ uint32_t packed = in.ToABGR(); qcms_transform_data(transform, (uint8_t *)&packed, (uint8_t *)&packed, 1); out = Color::FromABGR(packed); #else /* ARGB puts the bytes in |ARGB| order on big endian */ uint32_t packed = in.ToARGB(); /* add one to move past the alpha byte */ qcms_transform_data(transform, (uint8_t *)&packed + 1, (uint8_t *)&packed + 1, 1); out = Color::FromARGB(packed); #endif } else if (&out != &in) out = in; } void gfxPlatform::GetPlatformCMSOutputProfile(void *&mem, size_t &size) { mem = nullptr; size = 0; } void gfxPlatform::GetCMSOutputProfileData(void *&mem, size_t &size) { nsAdoptingCString fname = Preferences::GetCString("gfx.color_management.display_profile"); if (!fname.IsEmpty()) { qcms_data_from_path(fname, &mem, &size); } else { gfxPlatform::GetPlatform()->GetPlatformCMSOutputProfile(mem, size); } } void gfxPlatform::CreateCMSOutputProfile() { if (!gCMSOutputProfile) { /* Determine if we're using the internal override to force sRGB as an output profile for reftests. See Bug 452125. Note that we don't normally (outside of tests) set a default value of this preference, which means nsIPrefBranch::GetBoolPref will typically throw (and leave its out-param untouched). */ if (Preferences::GetBool(GFX_PREF_CMS_FORCE_SRGB, false)) { gCMSOutputProfile = GetCMSsRGBProfile(); } if (!gCMSOutputProfile) { void* mem = nullptr; size_t size = 0; GetCMSOutputProfileData(mem, size); if ((mem != nullptr) && (size > 0)) { gCMSOutputProfile = qcms_profile_from_memory(mem, size); free(mem); } } /* Determine if the profile looks bogus. If so, close the profile * and use sRGB instead. See bug 460629, */ if (gCMSOutputProfile && qcms_profile_is_bogus(gCMSOutputProfile)) { NS_ASSERTION(gCMSOutputProfile != GetCMSsRGBProfile(), "Builtin sRGB profile tagged as bogus!!!"); qcms_profile_release(gCMSOutputProfile); gCMSOutputProfile = nullptr; } if (!gCMSOutputProfile) { gCMSOutputProfile = GetCMSsRGBProfile(); } /* Precache the LUT16 Interpolations for the output profile. See bug 444661 for details. */ qcms_profile_precache_output_transform(gCMSOutputProfile); } } qcms_profile * gfxPlatform::GetCMSOutputProfile() { return gCMSOutputProfile; } qcms_profile * gfxPlatform::GetCMSsRGBProfile() { if (!gCMSsRGBProfile) { /* Create the profile using qcms. */ gCMSsRGBProfile = qcms_profile_sRGB(); } return gCMSsRGBProfile; } qcms_transform * gfxPlatform::GetCMSRGBTransform() { if (!gCMSRGBTransform) { qcms_profile *inProfile, *outProfile; outProfile = GetCMSOutputProfile(); inProfile = GetCMSsRGBProfile(); if (!inProfile || !outProfile) return nullptr; gCMSRGBTransform = qcms_transform_create(inProfile, QCMS_DATA_RGB_8, outProfile, QCMS_DATA_RGB_8, QCMS_INTENT_PERCEPTUAL); } return gCMSRGBTransform; } qcms_transform * gfxPlatform::GetCMSInverseRGBTransform() { if (!gCMSInverseRGBTransform) { qcms_profile *inProfile, *outProfile; inProfile = GetCMSOutputProfile(); outProfile = GetCMSsRGBProfile(); if (!inProfile || !outProfile) return nullptr; gCMSInverseRGBTransform = qcms_transform_create(inProfile, QCMS_DATA_RGB_8, outProfile, QCMS_DATA_RGB_8, QCMS_INTENT_PERCEPTUAL); } return gCMSInverseRGBTransform; } qcms_transform * gfxPlatform::GetCMSRGBATransform() { if (!gCMSRGBATransform) { qcms_profile *inProfile, *outProfile; outProfile = GetCMSOutputProfile(); inProfile = GetCMSsRGBProfile(); if (!inProfile || !outProfile) return nullptr; gCMSRGBATransform = qcms_transform_create(inProfile, QCMS_DATA_RGBA_8, outProfile, QCMS_DATA_RGBA_8, QCMS_INTENT_PERCEPTUAL); } return gCMSRGBATransform; } /* Shuts down various transforms and profiles for CMS. */ static void ShutdownCMS() { if (gCMSRGBTransform) { qcms_transform_release(gCMSRGBTransform); gCMSRGBTransform = nullptr; } if (gCMSInverseRGBTransform) { qcms_transform_release(gCMSInverseRGBTransform); gCMSInverseRGBTransform = nullptr; } if (gCMSRGBATransform) { qcms_transform_release(gCMSRGBATransform); gCMSRGBATransform = nullptr; } if (gCMSOutputProfile) { qcms_profile_release(gCMSOutputProfile); // handle the aliased case if (gCMSsRGBProfile == gCMSOutputProfile) gCMSsRGBProfile = nullptr; gCMSOutputProfile = nullptr; } if (gCMSsRGBProfile) { qcms_profile_release(gCMSsRGBProfile); gCMSsRGBProfile = nullptr; } // Reset the state variables gCMSMode = eCMSMode_Off; gCMSInitialized = false; } // default SetupClusterBoundaries, based on Unicode properties; // platform subclasses may override if they wish void gfxPlatform::SetupClusterBoundaries(gfxTextRun *aTextRun, const char16_t *aString) { if (aTextRun->GetFlags() & gfxTextRunFactory::TEXT_IS_8BIT) { // 8-bit text doesn't have clusters. // XXX is this true in all languages??? // behdad: don't think so. Czech for example IIRC has a // 'ch' grapheme. // jfkthame: but that's not expected to behave as a grapheme cluster // for selection/editing/etc. return; } aTextRun->SetupClusterBoundaries(0, aString, aTextRun->GetLength()); } int32_t gfxPlatform::GetBidiNumeralOption() { if (mBidiNumeralOption == UNINITIALIZED_VALUE) { mBidiNumeralOption = Preferences::GetInt(BIDI_NUMERAL_PREF, 0); } return mBidiNumeralOption; } static void FlushFontAndWordCaches() { gfxFontCache *fontCache = gfxFontCache::GetCache(); if (fontCache) { fontCache->AgeAllGenerations(); fontCache->FlushShapedWordCaches(); } } void gfxPlatform::FontsPrefsChanged(const char *aPref) { NS_ASSERTION(aPref != nullptr, "null preference"); if (!strcmp(GFX_DOWNLOADABLE_FONTS_ENABLED, aPref)) { mAllowDownloadableFonts = UNINITIALIZED_VALUE; } else if (!strcmp(GFX_PREF_FALLBACK_USE_CMAPS, aPref)) { mFallbackUsesCmaps = UNINITIALIZED_VALUE; } else if (!strcmp(GFX_PREF_WORD_CACHE_CHARLIMIT, aPref)) { mWordCacheCharLimit = UNINITIALIZED_VALUE; FlushFontAndWordCaches(); } else if (!strcmp(GFX_PREF_WORD_CACHE_MAXENTRIES, aPref)) { mWordCacheMaxEntries = UNINITIALIZED_VALUE; FlushFontAndWordCaches(); } else if (!strcmp(GFX_PREF_GRAPHITE_SHAPING, aPref)) { mGraphiteShapingEnabled = UNINITIALIZED_VALUE; FlushFontAndWordCaches(); } else if (!strcmp(BIDI_NUMERAL_PREF, aPref)) { mBidiNumeralOption = UNINITIALIZED_VALUE; } else if (!strcmp(GFX_PREF_OPENTYPE_SVG, aPref)) { mOpenTypeSVGEnabled = UNINITIALIZED_VALUE; gfxFontCache::GetCache()->AgeAllGenerations(); } } PRLogModuleInfo* gfxPlatform::GetLog(eGfxLog aWhichLog) { // logs shared across gfx static PRLogModuleInfo *sFontlistLog = nullptr; static PRLogModuleInfo *sFontInitLog = nullptr; static PRLogModuleInfo *sTextrunLog = nullptr; static PRLogModuleInfo *sTextrunuiLog = nullptr; static PRLogModuleInfo *sCmapDataLog = nullptr; static PRLogModuleInfo *sTextPerfLog = nullptr; // Assume that if one is initialized, all are initialized if (!sFontlistLog) { sFontlistLog = PR_NewLogModule("fontlist"); sFontInitLog = PR_NewLogModule("fontinit"); sTextrunLog = PR_NewLogModule("textrun"); sTextrunuiLog = PR_NewLogModule("textrunui"); sCmapDataLog = PR_NewLogModule("cmapdata"); sTextPerfLog = PR_NewLogModule("textperf"); } switch (aWhichLog) { case eGfxLog_fontlist: return sFontlistLog; break; case eGfxLog_fontinit: return sFontInitLog; break; case eGfxLog_textrun: return sTextrunLog; break; case eGfxLog_textrunui: return sTextrunuiLog; break; case eGfxLog_cmapdata: return sCmapDataLog; break; case eGfxLog_textperf: return sTextPerfLog; break; default: break; } return nullptr; } int gfxPlatform::GetScreenDepth() const { NS_WARNING("GetScreenDepth not implemented on this platform -- returning 0!"); return 0; } mozilla::gfx::SurfaceFormat gfxPlatform::Optimal2DFormatForContent(gfxContentType aContent) { switch (aContent) { case gfxContentType::COLOR: switch (GetOffscreenFormat()) { case gfxImageFormat::ARGB32: return mozilla::gfx::SurfaceFormat::B8G8R8A8; case gfxImageFormat::RGB24: return mozilla::gfx::SurfaceFormat::B8G8R8X8; case gfxImageFormat::RGB16_565: return mozilla::gfx::SurfaceFormat::R5G6B5; default: NS_NOTREACHED("unknown gfxImageFormat for gfxContentType::COLOR"); return mozilla::gfx::SurfaceFormat::B8G8R8A8; } case gfxContentType::ALPHA: return mozilla::gfx::SurfaceFormat::A8; case gfxContentType::COLOR_ALPHA: return mozilla::gfx::SurfaceFormat::B8G8R8A8; default: NS_NOTREACHED("unknown gfxContentType"); return mozilla::gfx::SurfaceFormat::B8G8R8A8; } } gfxImageFormat gfxPlatform::OptimalFormatForContent(gfxContentType aContent) { switch (aContent) { case gfxContentType::COLOR: return GetOffscreenFormat(); case gfxContentType::ALPHA: return gfxImageFormat::A8; case gfxContentType::COLOR_ALPHA: return gfxImageFormat::ARGB32; default: NS_NOTREACHED("unknown gfxContentType"); return gfxImageFormat::ARGB32; } } /** * There are a number of layers acceleration (or layers in general) preferences * that should be consistent for the lifetime of the application (bug 840967). * As such, we will evaluate them all as soon as one of them is evaluated * and remember the values. Changing these preferences during the run will * not have any effect until we restart. */ static bool sLayersSupportsD3D9 = false; static bool sLayersSupportsD3D11 = false; bool gANGLESupportsD3D11 = false; static bool sLayersSupportsHardwareVideoDecoding = false; static bool sLayersHardwareVideoDecodingFailed = false; static bool sBufferRotationCheckPref = true; static bool sPrefBrowserTabsRemoteAutostart = false; static bool sLayersAccelerationPrefsInitialized = false; void InitLayersAccelerationPrefs() { if (!sLayersAccelerationPrefsInitialized) { // If this is called for the first time on a non-main thread, we're screwed. // At the moment there's no explicit guarantee that the main thread calls // this before the compositor thread, but let's at least make the assumption // explicit. MOZ_ASSERT(NS_IsMainThread(), "can only initialize prefs on the main thread"); gfxPrefs::GetSingleton(); sPrefBrowserTabsRemoteAutostart = BrowserTabsRemoteAutostart(); nsCOMPtr gfxInfo = services::GetGfxInfo(); int32_t status; #ifdef XP_WIN if (gfxPrefs::LayersAccelerationForceEnabled()) { sLayersSupportsD3D9 = true; sLayersSupportsD3D11 = true; } else if (gfxInfo) { if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT3D_9_LAYERS, &status))) { if (status == nsIGfxInfo::FEATURE_STATUS_OK) { sLayersSupportsD3D9 = true; } } if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT3D_11_LAYERS, &status))) { if (status == nsIGfxInfo::FEATURE_STATUS_OK) { sLayersSupportsD3D11 = true; } } if (!gfxPrefs::LayersD3D11DisableWARP()) { // Always support D3D11 when WARP is allowed. sLayersSupportsD3D11 = true; } if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT3D_11_ANGLE, &status))) { if (status == nsIGfxInfo::FEATURE_STATUS_OK) { gANGLESupportsD3D11 = true; } } } #endif if (Preferences::GetBool("media.hardware-video-decoding.enabled", false) && #ifdef XP_WIN Preferences::GetBool("media.windows-media-foundation.use-dxva", true) && #endif NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING, &status))) { if (status == nsIGfxInfo::FEATURE_STATUS_OK) { sLayersSupportsHardwareVideoDecoding = true; } } Preferences::AddBoolVarCache(&sLayersHardwareVideoDecodingFailed, "media.hardware-video-decoding.failed", false); sLayersAccelerationPrefsInitialized = true; } } bool gfxPlatform::CanUseDirect3D9() { // this function is called from the compositor thread, so it is not // safe to init the prefs etc. from here. MOZ_ASSERT(sLayersAccelerationPrefsInitialized); return sLayersSupportsD3D9; } bool gfxPlatform::CanUseDirect3D11() { // this function is called from the compositor thread, so it is not // safe to init the prefs etc. from here. MOZ_ASSERT(sLayersAccelerationPrefsInitialized); return sLayersSupportsD3D11; } bool gfxPlatform::CanUseHardwareVideoDecoding() { // this function is called from the compositor thread, so it is not // safe to init the prefs etc. from here. MOZ_ASSERT(sLayersAccelerationPrefsInitialized); return sLayersSupportsHardwareVideoDecoding && !sLayersHardwareVideoDecodingFailed; } bool gfxPlatform::CanUseDirect3D11ANGLE() { MOZ_ASSERT(sLayersAccelerationPrefsInitialized); return gANGLESupportsD3D11; } bool gfxPlatform::ShouldUseLayersAcceleration() { const char *acceleratedEnv = PR_GetEnv("MOZ_ACCELERATED"); if (gfxPrefs::LayersAccelerationDisabled() || InSafeMode() || (acceleratedEnv && *acceleratedEnv == '0')) { return false; } if (gfxPrefs::LayersAccelerationForceEnabled()) { return true; } if (AccelerateLayersByDefault()) { return true; } if (acceleratedEnv && *acceleratedEnv != '0') { return true; } return false; } bool gfxPlatform::AccelerateLayersByDefault() { #if defined(MOZ_GL_PROVIDER) || defined(MOZ_WIDGET_UIKIT) return true; #else return false; #endif } bool gfxPlatform::BufferRotationEnabled() { MutexAutoLock autoLock(*gGfxPlatformPrefsLock); return sBufferRotationCheckPref && gfxPrefs::BufferRotationEnabled(); } void gfxPlatform::DisableBufferRotation() { MutexAutoLock autoLock(*gGfxPlatformPrefsLock); sBufferRotationCheckPref = false; } already_AddRefed gfxPlatform::GetScaledFontForFontWithCairoSkia(DrawTarget* aTarget, gfxFont* aFont) { NativeFont nativeFont; if (aTarget->GetBackendType() == BackendType::CAIRO || aTarget->GetBackendType() == BackendType::SKIA) { nativeFont.mType = NativeFontType::CAIRO_FONT_FACE; nativeFont.mFont = aFont->GetCairoScaledFont(); return Factory::CreateScaledFontForNativeFont(nativeFont, aFont->GetAdjustedSize()); } return nullptr; } /* static */ bool gfxPlatform::UsesOffMainThreadCompositing() { InitLayersAccelerationPrefs(); static bool firstTime = true; static bool result = false; if (firstTime) { result = sPrefBrowserTabsRemoteAutostart || gfxPrefs::LayersOffMainThreadCompositionEnabled() || gfxPrefs::LayersOffMainThreadCompositionForceEnabled() || gfxPrefs::LayersOffMainThreadCompositionTestingEnabled(); #if defined(MOZ_WIDGET_GTK) // Linux users who chose OpenGL are being grandfathered in to OMTC result |= gfxPrefs::LayersAccelerationForceEnabled(); #endif firstTime = false; } return result; } already_AddRefed gfxPlatform::CreateHardwareVsyncSource() { NS_WARNING("Hardware Vsync support not yet implemented. Falling back to software timers"); nsRefPtr softwareVsync = new SoftwareVsyncSource(); return softwareVsync.forget(); } /* static */ bool gfxPlatform::IsInLayoutAsapMode() { // There are 2 modes of ASAP mode. // 1 is that the refresh driver and compositor are in lock step // the second is that the compositor goes ASAP and the refresh driver // goes at whatever the configurated rate is. This only checks the version // talos uses, which is the refresh driver and compositor are in lockstep. return Preferences::GetInt("layout.frame_rate", -1) == 0; } static nsString DetectBadApzWheelInputPrefs() { static const char *sBadMultiplierPrefs[] = { "mousewheel.default.delta_multiplier_x", "mousewheel.with_alt.delta_multiplier_x", "mousewheel.with_control.delta_multiplier_x", "mousewheel.with_meta.delta_multiplier_x", "mousewheel.with_shift.delta_multiplier_x", "mousewheel.with_win.delta_multiplier_x", "mousewheel.with_alt.delta_multiplier_y", "mousewheel.with_control.delta_multiplier_y", "mousewheel.with_meta.delta_multiplier_y", "mousewheel.with_shift.delta_multiplier_y", "mousewheel.with_win.delta_multiplier_y", }; nsString badPref; for (size_t i = 0; i < MOZ_ARRAY_LENGTH(sBadMultiplierPrefs); i++) { if (Preferences::GetInt(sBadMultiplierPrefs[i], 100) != 100) { badPref.AssignASCII(sBadMultiplierPrefs[i]); break; } } return badPref; } void gfxPlatform::GetApzSupportInfo(mozilla::widget::InfoObject& aObj) { if (!gfxPlatform::AsyncPanZoomEnabled()) { return; } if (SupportsApzWheelInput()) { nsString badPref = DetectBadApzWheelInputPrefs(); aObj.DefineProperty("ApzWheelInput", 1); if (badPref.Length()) { aObj.DefineProperty("ApzWheelInputWarning", badPref); } } if (SupportsApzTouchInput()) { aObj.DefineProperty("ApzTouchInput", 1); } } /*static*/ bool gfxPlatform::AsyncPanZoomEnabled() { #if !defined(MOZ_B2G) && !defined(MOZ_WIDGET_ANDROID) && !defined(MOZ_WIDGET_UIKIT) // For XUL applications (everything but B2G on mobile and desktop, and // Firefox on Android) we only want to use APZ when E10S is enabled. If // we ever get input events off the main thread we can consider relaxing // this requirement. if (!BrowserTabsRemoteAutostart()) { return false; } #endif return gfxPrefs::AsyncPanZoomEnabledDoNotUseDirectly(); } /*virtual*/ bool gfxPlatform::UseProgressivePaint() { return gfxPrefs::ProgressivePaintDoNotUseDirectly(); } /*static*/ bool gfxPlatform::PerfWarnings() { return gfxPrefs::PerfWarnings(); } void gfxPlatform::GetAcceleratedCompositorBackends(nsTArray& aBackends) { // Being whitelisted is not enough to accelerate, but not being whitelisted is // enough not to: bool whitelisted = false; nsCOMPtr gfxInfo = do_GetService("@mozilla.org/gfx/info;1"); if (gfxInfo) { // bug 655578: on X11 at least, we must always call GetData (even if we don't need that information) // as that's what causes GfxInfo initialization which kills the zombie 'glxtest' process. // initially we relied on the fact that GetFeatureStatus calls GetData for us, but bug 681026 showed // that assumption to be unsafe. gfxInfo->GetData(); int32_t status; if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_OPENGL_LAYERS, &status))) { if (status == nsIGfxInfo::FEATURE_STATUS_OK) { aBackends.AppendElement(LayersBackend::LAYERS_OPENGL); whitelisted = true; } } } if (!whitelisted) { static int tell_me_once = 0; if (!tell_me_once) { NS_WARNING("OpenGL-accelerated layers are not supported on this system"); tell_me_once = 1; } #ifdef MOZ_WIDGET_ANDROID NS_RUNTIMEABORT("OpenGL-accelerated layers are a hard requirement on this platform. " "Cannot continue without support for them"); #endif } } void gfxPlatform::GetCompositorBackends(bool useAcceleration, nsTArray& aBackends) { if (useAcceleration) { GetAcceleratedCompositorBackends(aBackends); } if (SupportsBasicCompositor()) { aBackends.AppendElement(LayersBackend::LAYERS_BASIC); } } void gfxPlatform::NotifyCompositorCreated(LayersBackend aBackend) { if (mCompositorBackend == aBackend) { return; } NS_ASSERTION(mCompositorBackend == LayersBackend::LAYERS_NONE, "Compositor backend changed."); // Set the backend before we notify so it's available immediately. mCompositorBackend = aBackend; // Notify that we created a compositor, so telemetry can update. if (nsCOMPtr obsvc = services::GetObserverService()) { obsvc->NotifyObservers(nullptr, "compositor:created", nullptr); } }