/* -*- 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/. */ #ifdef MOZ_LOGGING #define FORCE_PR_LOG /* Allow logging in the release build */ #endif #include "mozilla/layers/CompositorChild.h" #include "mozilla/layers/CompositorParent.h" #include "mozilla/layers/ImageBridgeChild.h" #include "mozilla/layers/ISurfaceAllocator.h" // for GfxMemoryImageReporter #include "prlog.h" #include "gfxPlatform.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" #include "gfxD2DSurface.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(XP_OS2) #include "gfxOS2Platform.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" #include "nsWeakReference.h" #include "cairo.h" #include "qcms.h" #include "plstr.h" #include "nsCRT.h" #include "GLContext.h" #include "GLContextProvider.h" #ifdef MOZ_WIDGET_ANDROID #include "TexturePoolOGL.h" #endif #ifdef USE_SKIA #include "mozilla/Hal.h" #include "skia/SkGraphics.h" #endif #include "mozilla/Preferences.h" #include "mozilla/Assertions.h" #include "mozilla/Attributes.h" #include "mozilla/Mutex.h" #include "nsIGfxInfo.h" using namespace mozilla; using namespace mozilla::layers; 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 int gCMSIntent = -2; static void ShutdownCMS(); static void MigratePrefs(); static bool sDrawFrameCounter = false; #include "mozilla/gfx/2D.h" using namespace mozilla::gfx; // logs shared across gfx #ifdef PR_LOGGING static PRLogModuleInfo *sFontlistLog = nullptr; static PRLogModuleInfo *sFontInitLog = nullptr; static PRLogModuleInfo *sTextrunLog = nullptr; static PRLogModuleInfo *sTextrunuiLog = nullptr; static PRLogModuleInfo *sCmapDataLog = nullptr; static PRLogModuleInfo *sTextPerfLog = nullptr; #endif /* Class to listen for pref changes so that chrome code can dynamically force sRGB as an output profile. See Bug #452125. */ class SRGBOverrideObserver MOZ_FINAL : public nsIObserver, public nsSupportsWeakReference { public: NS_DECL_ISUPPORTS NS_DECL_NSIOBSERVER }; NS_IMPL_ISUPPORTS2(SRGBOverrideObserver, nsIObserver, nsISupportsWeakReference) NS_IMETHODIMP SRGBOverrideObserver::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *someData) { NS_ASSERTION(NS_strcmp(someData, NS_LITERAL_STRING("gfx.color_mangement.force_srgb").get()), "Restarting CMS on wrong pref!"); ShutdownCMS(); return NS_OK; } #define GFX_DOWNLOADABLE_FONTS_ENABLED "gfx.downloadable_fonts.enabled" #define GFX_PREF_HARFBUZZ_SCRIPTS "gfx.font_rendering.harfbuzz.scripts" #define HARFBUZZ_SCRIPTS_DEFAULT mozilla::unicode::SHAPING_DEFAULT #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" static const char* kObservedPrefs[] = { "gfx.downloadable_fonts.", "gfx.font_rendering.", "bidi.numeral", nullptr }; class FontPrefsObserver MOZ_FINAL : public nsIObserver { public: NS_DECL_ISUPPORTS NS_DECL_NSIOBSERVER }; NS_IMPL_ISUPPORTS1(FontPrefsObserver, nsIObserver) NS_IMETHODIMP FontPrefsObserver::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *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 OrientationSyncPrefsObserver MOZ_FINAL : public nsIObserver { public: NS_DECL_ISUPPORTS NS_DECL_NSIOBSERVER }; NS_IMPL_ISUPPORTS1(OrientationSyncPrefsObserver, nsIObserver) NS_IMETHODIMP OrientationSyncPrefsObserver::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *someData) { if (!someData) { NS_ERROR("orientation sync pref observer broken"); return NS_ERROR_UNEXPECTED; } NS_ASSERTION(gfxPlatform::GetPlatform(), "the singleton instance has gone"); gfxPlatform::GetPlatform()->OrientationSyncPrefsObserverChanged(); return NS_OK; } class MemoryPressureObserver MOZ_FINAL : public nsIObserver { public: NS_DECL_ISUPPORTS NS_DECL_NSIOBSERVER }; NS_IMPL_ISUPPORTS1(MemoryPressureObserver, nsIObserver) NS_IMETHODIMP MemoryPressureObserver::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *someData) { NS_ASSERTION(strcmp(aTopic, "memory-pressure") == 0, "unexpected event topic"); Factory::PurgeTextureCaches(); return NS_OK; } // this needs to match the list of pref font.default.xx entries listed in all.js! // the order *must* match the order in eFontPrefLang static const char *gPrefLangNames[] = { "x-western", "x-central-euro", "ja", "zh-TW", "zh-CN", "zh-HK", "ko", "x-cyrillic", "x-baltic", "el", "tr", "th", "he", "ar", "x-devanagari", "x-tamil", "x-armn", "x-beng", "x-cans", "x-ethi", "x-geor", "x-gujr", "x-guru", "x-khmr", "x-mlym", "x-orya", "x-telu", "x-knda", "x-sinh", "x-tibt", "x-unicode", "x-user-def" }; gfxPlatform::gfxPlatform() : mAzureCanvasBackendCollector(MOZ_THIS_IN_INITIALIZER_LIST(), &gfxPlatform::GetAzureBackendInfo) , mDrawLayerBorders(false) , mDrawTileBorders(false) , mDrawBigImageBorders(false) { mUseHarfBuzzScripts = UNINITIALIZED_VALUE; mAllowDownloadableFonts = UNINITIALIZED_VALUE; mFallbackUsesCmaps = UNINITIALIZED_VALUE; mWordCacheCharLimit = UNINITIALIZED_VALUE; mWordCacheMaxEntries = UNINITIALIZED_VALUE; mGraphiteShapingEnabled = UNINITIALIZED_VALUE; mOpenTypeSVGEnabled = UNINITIALIZED_VALUE; mBidiNumeralOption = UNINITIALIZED_VALUE; mLayersPreferMemoryOverShmem = XRE_GetProcessType() == GeckoProcessType_Default && Preferences::GetBool("layers.prefer-memory-over-shmem", true); mLayersUseDeprecated = Preferences::GetBool("layers.use-deprecated-textures", true); Preferences::AddBoolVarCache(&mDrawLayerBorders, "layers.draw-borders", false); Preferences::AddBoolVarCache(&mDrawTileBorders, "layers.draw-tile-borders", false); Preferences::AddBoolVarCache(&mDrawBigImageBorders, "layers.draw-bigimage-borders", false); uint32_t canvasMask = (1 << BACKEND_CAIRO) | (1 << BACKEND_SKIA); uint32_t contentMask = 1 << BACKEND_CAIRO; InitBackendPrefs(canvasMask, BACKEND_CAIRO, contentMask, BACKEND_CAIRO); } gfxPlatform* gfxPlatform::GetPlatform() { if (!gPlatform) { Init(); } return gPlatform; } int 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 0; } fileName.AppendPrintf("moz2drec_%i_%i.aer", XRE_GetProcessType(), getpid()); nsresult rv = tmpFile->AppendNative(fileName); if (NS_FAILED(rv)) return 0; rv = tmpFile->GetNativePath(fileName); if (NS_FAILED(rv)) return 0; } gPlatform->mRecorder = Factory::CreateEventRecorderForFile(fileName.BeginReading()); printf_stderr("Recording to %s\n", fileName.get()); Factory::SetGlobalEventRecorder(gPlatform->mRecorder); } else { Factory::SetGlobalEventRecorder(nullptr); } return 0; } void gfxPlatform::Init() { if (gEverInitialized) { NS_RUNTIMEABORT("Already started???"); } gEverInitialized = true; #ifdef PR_LOGGING sFontlistLog = PR_NewLogModule("fontlist"); sFontInitLog = PR_NewLogModule("fontinit"); sTextrunLog = PR_NewLogModule("textrun"); sTextrunuiLog = PR_NewLogModule("textrunui"); sCmapDataLog = PR_NewLogModule("cmapdata"); sTextPerfLog = PR_NewLogModule("textperf"); #endif 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 = do_GetService("@mozilla.org/gfx/info;1"); #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(XP_OS2) gPlatform = new gfxOS2Platform; #elif defined(ANDROID) gPlatform = new gfxAndroidPlatform; #else #error "No gfxPlatform implementation available" #endif #ifdef DEBUG mozilla::gl::GLContext::StaticInit(); #endif bool useOffMainThreadCompositing = OffMainThreadCompositionRequired() || GetPrefLayersOffMainThreadCompositionEnabled(); if (!OffMainThreadCompositionRequired()) { useOffMainThreadCompositing &= GetPlatform()->SupportsOffMainThreadCompositing(); } if (useOffMainThreadCompositing && (XRE_GetProcessType() == GeckoProcessType_Default)) { CompositorParent::StartUp(); if (Preferences::GetBool("layers.async-video.enabled", false)) { ImageBridgeChild::StartUp(); } } nsresult rv; #if defined(XP_MACOSX) || defined(XP_WIN) || defined(ANDROID) // temporary, until this is implemented on others rv = gfxPlatformFontList::Init(); if (NS_FAILED(rv)) { NS_RUNTIMEABORT("Could not initialize gfxPlatformFontList"); } #endif gPlatform->mScreenReferenceSurface = gPlatform->CreateOffscreenSurface(gfxIntSize(1,1), GFX_CONTENT_COLOR_ALPHA); if (!gPlatform->mScreenReferenceSurface) { NS_RUNTIMEABORT("Could not initialize mScreenReferenceSurface"); } if (gPlatform->SupportsAzureContent()) { gPlatform->mScreenReferenceDrawTarget = gPlatform->CreateOffscreenContentDrawTarget(IntSize(1, 1), FORMAT_B8G8R8A8); if (!gPlatform->mScreenReferenceDrawTarget) { NS_RUNTIMEABORT("Could not initialize mScreenReferenceDrawTarget"); } } rv = gfxFontCache::Init(); if (NS_FAILED(rv)) { NS_RUNTIMEABORT("Could not initialize gfxFontCache"); } /* Pref migration hook. */ MigratePrefs(); /* Create and register our CMS Override observer. */ gPlatform->mSRGBOverrideObserver = new SRGBOverrideObserver(); Preferences::AddWeakObserver(gPlatform->mSRGBOverrideObserver, "gfx.color_management.force_srgb"); gPlatform->mFontPrefsObserver = new FontPrefsObserver(); Preferences::AddStrongObservers(gPlatform->mFontPrefsObserver, kObservedPrefs); gPlatform->mOrientationSyncPrefsObserver = new OrientationSyncPrefsObserver(); Preferences::AddStrongObserver(gPlatform->mOrientationSyncPrefsObserver, "layers.orientation.sync.timeout"); gPlatform->mWorkAroundDriverBugs = Preferences::GetBool("gfx.work-around-driver-bugs", true); mozilla::Preferences::AddBoolVarCache(&gPlatform->mWidgetUpdateFlashing, "nglayout.debug.widget_update_flashing"); mozilla::gl::GLContext::PlatformStartup(); #ifdef MOZ_WIDGET_ANDROID // Texture pool init mozilla::gl::TexturePoolOGL::Init(); #endif // Force registration of the gfx component, thus arranging for // ::Shutdown to be called. nsCOMPtr forceReg = do_CreateInstance("@mozilla.org/gfx/init;1"); Preferences::RegisterCallbackAndCall(RecordingPrefChanged, "gfx.2d.recording", nullptr); gPlatform->mOrientationSyncMillis = Preferences::GetUint("layers.orientation.sync.timeout", (uint32_t)0); mozilla::Preferences::AddBoolVarCache(&sDrawFrameCounter, "layers.frame-counter", false); CreateCMSOutputProfile(); #ifdef USE_SKIA gPlatform->InitializeSkiaCaches(); #endif // 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); } NS_RegisterMemoryReporter(new GfxMemoryImageReporter()); } void gfxPlatform::Shutdown() { // 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(); gfxGraphiteShaper::Shutdown(); #if defined(XP_MACOSX) || defined(XP_WIN) // temporary, until this is implemented on others gfxPlatformFontList::Shutdown(); #endif // 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.color_management.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; } #ifdef MOZ_WIDGET_ANDROID // Shut down the texture pool mozilla::gl::TexturePoolOGL::Shutdown(); #endif // Shut down the default GL context provider. mozilla::gl::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. mozilla::gl::GLContextProviderEGL::Shutdown(); #endif // This will block this thread untill the ImageBridge protocol is completely // deleted. ImageBridgeChild::ShutDown(); CompositorParent::ShutDown(); delete gGfxPlatformPrefsLock; delete gPlatform; gPlatform = nullptr; } gfxPlatform::~gfxPlatform() { mScreenReferenceSurface = nullptr; mScreenReferenceDrawTarget = nullptr; // 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(NS_TRACE_MALLOC) || 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 #if 0 // It would be nice to do this (although it might need to be after // the cairo shutdown that happens in ~gfxPlatform). It even looks // idempotent. But it has fatal assertions that fire if stuff is // leaked, and we hit them. FcFini(); #endif } bool gfxPlatform::PreferMemoryOverShmem() const { MOZ_ASSERT(!CompositorParent::IsInCompositorThread()); return mLayersPreferMemoryOverShmem; } already_AddRefed gfxPlatform::CreateOffscreenImageSurface(const gfxIntSize& aSize, gfxContentType aContentType) { nsRefPtr newSurface; newSurface = new gfxImageSurface(aSize, OptimalFormatForContent(aContentType)); return newSurface.forget(); } already_AddRefed gfxPlatform::OptimizeImage(gfxImageSurface *aSurface, gfxImageFormat format) { const gfxIntSize& surfaceSize = aSurface->GetSize(); #ifdef XP_WIN if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() == gfxWindowsPlatform::RENDER_DIRECT2D) { return nullptr; } #endif nsRefPtr optSurface = CreateOffscreenSurface(surfaceSize, gfxASurface::ContentFromFormat(format)); if (!optSurface || optSurface->CairoStatus() != 0) return nullptr; gfxContext tmpCtx(optSurface); tmpCtx.SetOperator(gfxContext::OPERATOR_SOURCE); tmpCtx.SetSource(aSurface); tmpCtx.Paint(); return optSurface.forget(); } cairo_user_data_key_t kDrawTarget; RefPtr gfxPlatform::CreateDrawTargetForSurface(gfxASurface *aSurface, const IntSize& aSize) { RefPtr drawTarget = Factory::CreateDrawTargetForCairoSurface(aSurface->CairoSurface(), aSize); aSurface->SetData(&kDrawTarget, drawTarget, nullptr); return drawTarget; } // 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 RefPtr 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() == gfxSurfaceTypeQuartz) { 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); } #if MOZ_TREE_CAIRO void SourceSnapshotDetached(cairo_surface_t *nullSurf) { gfxImageSurface* origSurf = static_cast(cairo_surface_get_user_data(nullSurf, &kSourceSurface)); origSurf->SetData(&kSourceSurface, nullptr, nullptr); } #else void SourceSnapshotDetached(void *nullSurf) { gfxImageSurface* origSurf = static_cast(nullSurf); origSurf->SetData(&kSourceSurface, nullptr, nullptr); } #endif void gfxPlatform::ClearSourceSurfaceForSurface(gfxASurface *aSurface) { aSurface->SetData(&kSourceSurface, nullptr, nullptr); } RefPtr gfxPlatform::GetSourceSurfaceForSurface(DrawTarget *aTarget, gfxASurface *aSurface) { if (!aSurface->CairoSurface() || aSurface->CairoStatus()) { return nullptr; } void *userData = aSurface->GetData(&kSourceSurface); if (userData) { SourceSurfaceUserData *surf = static_cast(userData); if (surf->mSrcSurface->IsValid() && surf->mBackendType == aTarget->GetType()) { return surf->mSrcSurface; } // We can just continue here as when setting new user data the destroy // function will be called for the old user data. } SurfaceFormat format; if (aSurface->GetContentType() == GFX_CONTENT_ALPHA) { format = FORMAT_A8; } else if (aSurface->GetContentType() == GFX_CONTENT_COLOR) { format = FORMAT_B8G8R8X8; } else { format = FORMAT_B8G8R8A8; } RefPtr srcBuffer; #ifdef XP_WIN if (aSurface->GetType() == gfxSurfaceTypeD2D && format != FORMAT_A8) { NativeSurface surf; surf.mFormat = format; surf.mType = NATIVE_SURFACE_D3D10_TEXTURE; surf.mSurface = static_cast(aSurface)->GetTexture(); mozilla::gfx::DrawTarget *dt = static_cast(aSurface->GetData(&kDrawTarget)); if (dt) { dt->Flush(); } srcBuffer = aTarget->CreateSourceSurfaceFromNativeSurface(surf); } else #endif if (aSurface->CairoSurface() && aTarget->GetType() == BACKEND_CAIRO) { // If this is an xlib cairo surface we don't want to fetch it into memory // because this is a major slow down. NativeSurface surf; surf.mFormat = format; surf.mType = NATIVE_SURFACE_CAIRO_SURFACE; surf.mSurface = aSurface->CairoSurface(); srcBuffer = aTarget->CreateSourceSurfaceFromNativeSurface(surf); if (srcBuffer) { // It's cheap enough to make a new one so we won't keep it around and // keeping it creates a cycle. return srcBuffer; } } if (!srcBuffer) { nsRefPtr imgSurface = aSurface->GetAsImageSurface(); bool isWin32ImageSurf = imgSurface && aSurface->GetType() == gfxSurfaceTypeWin32; if (!imgSurface) { imgSurface = new gfxImageSurface(aSurface->GetSize(), OptimalFormatForContent(aSurface->GetContentType())); nsRefPtr ctx = new gfxContext(imgSurface); ctx->SetSource(aSurface); ctx->SetOperator(gfxContext::OPERATOR_SOURCE); ctx->Paint(); } gfxImageFormat cairoFormat = imgSurface->Format(); switch(cairoFormat) { case gfxImageFormatARGB32: format = FORMAT_B8G8R8A8; break; case gfxImageFormatRGB24: format = FORMAT_B8G8R8X8; break; case gfxImageFormatA8: format = FORMAT_A8; break; case gfxImageFormatRGB16_565: format = FORMAT_R5G6B5; break; default: NS_RUNTIMEABORT("Invalid surface format!"); } IntSize size = IntSize(imgSurface->GetSize().width, imgSurface->GetSize().height); srcBuffer = aTarget->CreateSourceSurfaceFromData(imgSurface->Data(), size, imgSurface->Stride(), format); if (!srcBuffer) { // We need to check if our gfxASurface will keep the underlying data // alive. This is true if gfxASurface actually -is- an ImageSurface or // if it is a gfxWindowsSurface which supports GetAsImageSurface. if (imgSurface != aSurface && !isWin32ImageSurf) { return nullptr; } srcBuffer = Factory::CreateWrappingDataSourceSurface(imgSurface->Data(), imgSurface->Stride(), size, format); } #if MOZ_TREE_CAIRO cairo_surface_t *nullSurf = cairo_null_surface_create(CAIRO_CONTENT_COLOR_ALPHA); cairo_surface_set_user_data(nullSurf, &kSourceSurface, imgSurface, nullptr); cairo_surface_attach_snapshot(imgSurface->CairoSurface(), nullSurf, SourceSnapshotDetached); cairo_surface_destroy(nullSurf); #else cairo_surface_set_mime_data(imgSurface->CairoSurface(), "mozilla/magic", (const unsigned char*) "data", 4, SourceSnapshotDetached, imgSurface.get()); #endif } SourceSurfaceUserData *srcSurfUD = new SourceSurfaceUserData; srcSurfUD->mBackendType = aTarget->GetType(); srcSurfUD->mSrcSurface = srcBuffer; aSurface->SetData(&kSourceSurface, srcSurfUD, SourceBufferDestroy); return srcBuffer; } TemporaryRef gfxPlatform::GetScaledFontForFont(DrawTarget* aTarget, gfxFont *aFont) { NativeFont nativeFont; nativeFont.mType = NATIVE_FONT_CAIRO_FONT_FACE; nativeFont.mFont = aFont->GetCairoScaledFont(); RefPtr scaledFont = Factory::CreateScaledFontForNativeFont(nativeFont, aFont->GetAdjustedSize()); return scaledFont; } cairo_user_data_key_t kDrawSourceSurface; static void DataSourceSurfaceDestroy(void *dataSourceSurface) { static_cast(dataSourceSurface)->Release(); } cairo_user_data_key_t kDrawTargetForSurface; static void DataDrawTargetDestroy(void *aTarget) { static_cast(aTarget)->Release(); } bool gfxPlatform::SupportsAzureContentForDrawTarget(DrawTarget* aTarget) { if (!aTarget) { return false; } return SupportsAzureContentForType(aTarget->GetType()); } bool gfxPlatform::UseAcceleratedSkiaCanvas() { return Preferences::GetBool("gfx.canvas.azure.accelerated", false) && mPreferredCanvasBackend == BACKEND_SKIA; } void gfxPlatform::InitializeSkiaCaches() { #ifdef USE_SKIA_GPU if (UseAcceleratedSkiaCanvas()) { bool usingDynamicCache = Preferences::GetBool("gfx.canvas.skiagl.dynamic-cache", false); int cacheItemLimit = Preferences::GetInt("gfx.canvas.skiagl.cache-items", 256); int cacheSizeLimit = Preferences::GetInt("gfx.canvas.skiagl.cache-size", 96); // Prefs are in megabytes, but we want the sizes in bytes cacheSizeLimit *= 1024*1024; if (usingDynamicCache) { uint32_t totalMemory = mozilla::hal::GetTotalSystemMemory(); if (totalMemory <= 256*1024*1024) { // We need a very minimal cache on 256 meg devices cacheSizeLimit = 2*1024*1024; } else if (totalMemory > 0) { cacheSizeLimit = totalMemory / 16; } } #ifdef DEBUG printf_stderr("Determined SkiaGL cache limits: Size %i, Items: %i\n", cacheSizeLimit, cacheItemLimit); #endif Factory::SetGlobalSkiaCacheLimits(cacheItemLimit, cacheSizeLimit); } #endif } already_AddRefed gfxPlatform::GetThebesSurfaceForDrawTarget(DrawTarget *aTarget) { if (aTarget->GetType() == BACKEND_CAIRO) { cairo_surface_t* csurf = static_cast(aTarget->GetNativeSurface(NATIVE_SURFACE_CAIRO_SURFACE)); if (csurf) { return gfxASurface::Wrap(csurf); } } // The semantics of this part of the function are sort of weird. If we // don't have direct support for the backend, we snapshot the first time // and then return the snapshotted surface for the lifetime of the draw // target. Sometimes it seems like this works out, but it seems like it // might result in no updates ever. RefPtr source = aTarget->Snapshot(); RefPtr data = source->GetDataSurface(); if (!data) { return nullptr; } IntSize size = data->GetSize(); gfxImageFormat format = SurfaceFormatToImageFormat(data->GetFormat()); nsRefPtr surf = new gfxImageSurface(data->GetData(), gfxIntSize(size.width, size.height), data->Stride(), format); surf->SetData(&kDrawSourceSurface, data.forget().drop(), DataSourceSurfaceDestroy); // keep the draw target alive as long as we need its data aTarget->AddRef(); surf->SetData(&kDrawTargetForSurface, aTarget, DataDrawTargetDestroy); return surf.forget(); } RefPtr 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 == BACKEND_CAIRO) { nsRefPtr surf = CreateOffscreenSurface(ThebesIntSize(aSize), ContentForFormat(aFormat)); if (!surf || surf->CairoStatus()) { return nullptr; } return CreateDrawTargetForSurface(surf, aSize); } else { return Factory::CreateDrawTarget(aBackend, aSize, aFormat); } } RefPtr gfxPlatform::CreateOffscreenCanvasDrawTarget(const IntSize& aSize, SurfaceFormat aFormat) { NS_ASSERTION(mPreferredCanvasBackend, "No backend."); RefPtr target = CreateDrawTargetForBackend(mPreferredCanvasBackend, aSize, aFormat); if (target || mFallbackCanvasBackend == BACKEND_NONE) { return target; } return CreateDrawTargetForBackend(mFallbackCanvasBackend, aSize, aFormat); } RefPtr gfxPlatform::CreateOffscreenContentDrawTarget(const IntSize& aSize, SurfaceFormat aFormat) { NS_ASSERTION(mContentBackend, "No backend."); return CreateDrawTargetForBackend(mContentBackend, aSize, aFormat); } RefPtr gfxPlatform::CreateDrawTargetForData(unsigned char* aData, const IntSize& aSize, int32_t aStride, SurfaceFormat aFormat) { NS_ASSERTION(mContentBackend, "No backend."); if (mContentBackend == BACKEND_CAIRO) { nsRefPtr image = new gfxImageSurface(aData, gfxIntSize(aSize.width, aSize.height), aStride, SurfaceFormatToImageFormat(aFormat)); return Factory::CreateDrawTargetForCairoSurface(image->CairoSurface(), aSize); } return Factory::CreateDrawTargetForData(mContentBackend, aData, aSize, aStride, aFormat); } /* static */ BackendType gfxPlatform::BackendTypeForName(const nsCString& aName) { if (aName.EqualsLiteral("cairo")) return BACKEND_CAIRO; if (aName.EqualsLiteral("skia")) return BACKEND_SKIA; if (aName.EqualsLiteral("direct2d")) return BACKEND_DIRECT2D; if (aName.EqualsLiteral("cg")) return BACKEND_COREGRAPHICS; return BACKEND_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; } bool gfxPlatform::UseHarfBuzzForScript(int32_t aScriptCode) { if (mUseHarfBuzzScripts == UNINITIALIZED_VALUE) { mUseHarfBuzzScripts = Preferences::GetInt(GFX_PREF_HARFBUZZ_SCRIPTS, HARFBUZZ_SCRIPTS_DEFAULT); } int32_t shapingType = mozilla::unicode::ScriptShapingType(aScriptCode); return (mUseHarfBuzzScripts & shapingType) != 0; } gfxFontEntry* gfxPlatform::MakePlatformFont(const gfxProxyFontEntry *aProxyEntry, 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) { NS_Free((void*)aFontData); } return nullptr; } static void AppendGenericFontFromPref(nsString& aFonts, nsIAtom *aLangGroup, const char *aGenericName) { NS_ENSURE_TRUE_VOID(Preferences::GetRootBranch()); nsAutoCString prefName, langGroupString; aLangGroup->ToUTF8String(langGroupString); nsAutoCString genericDotLang; if (aGenericName) { genericDotLang.Assign(aGenericName); } else { prefName.AssignLiteral("font.default."); prefName.Append(langGroupString); genericDotLang = Preferences::GetCString(prefName.get()); } genericDotLang.AppendLiteral("."); genericDotLang.Append(langGroupString); // fetch font.name.xxx value prefName.AssignLiteral("font.name."); prefName.Append(genericDotLang); nsAdoptingString nameValue = Preferences::GetString(prefName.get()); if (nameValue) { if (!aFonts.IsEmpty()) aFonts.AppendLiteral(", "); aFonts += nameValue; } // fetch font.name-list.xxx value prefName.AssignLiteral("font.name-list."); prefName.Append(genericDotLang); nsAdoptingString nameListValue = Preferences::GetString(prefName.get()); if (nameListValue && !nameListValue.Equals(nameValue)) { if (!aFonts.IsEmpty()) aFonts.AppendLiteral(", "); aFonts += nameListValue; } } void gfxPlatform::GetPrefFonts(nsIAtom *aLanguage, nsString& aFonts, bool aAppendUnicode) { aFonts.Truncate(); AppendGenericFontFromPref(aFonts, aLanguage, nullptr); if (aAppendUnicode) AppendGenericFontFromPref(aFonts, nsGkAtoms::Unicode, 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.AppendLiteral("."); 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 < uint32_t(eFontPrefLang_LangCount); ++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()); } const char* gfxPlatform::GetPrefLangName(eFontPrefLang aLang) { if (uint32_t(aLang) < uint32_t(eFontPrefLang_AllCount)) 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 kRangeTurkish: return eFontPrefLang_Turkish; case kRangeHebrew: return eFontPrefLang_Hebrew; case kRangeArabic: return eFontPrefLang_Arabic; case kRangeBaltic: return eFontPrefLang_Baltic; 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 = DIAGNOSTIC_NONE; if (mDrawLayerBorders) { type |= mozilla::layers::DIAGNOSTIC_LAYER_BORDERS; } if (mDrawTileBorders) { type |= mozilla::layers::DIAGNOSTIC_TILE_BORDERS; } if (mDrawBigImageBorders) { type |= mozilla::layers::DIAGNOSTIC_BIGIMAGE_BORDERS; } return type; } bool gfxPlatform::DrawFrameCounter() { return sDrawFrameCounter; } 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) { mPreferredCanvasBackend = aCanvasDefault; } mFallbackCanvasBackend = GetCanvasBackendPref(aCanvasBitmask & ~(1 << mPreferredCanvasBackend)); mContentBackendBitmask = aContentBitmask; mContentBackend = GetContentBackendPref(mContentBackendBitmask); if (!mContentBackend) { mContentBackend = 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 = BACKEND_NONE; for (uint32_t i = 0; i < backendList.Length(); ++i) { BackendType type = BackendTypeForName(backendList[i]); if ((1 << type) & aBackendBitmask) { allowedBackends |= (1 << type); if (result == BACKEND_NONE) { result = type; } } } aBackendBitmask = allowedBackends; return result; } bool gfxPlatform::UseProgressiveTilePainting() { static bool sUseProgressiveTilePainting; static bool sUseProgressiveTilePaintingPrefCached = false; if (!sUseProgressiveTilePaintingPrefCached) { sUseProgressiveTilePaintingPrefCached = true; mozilla::Preferences::AddBoolVarCache(&sUseProgressiveTilePainting, "layers.progressive-paint", false); } return sUseProgressiveTilePainting; } bool gfxPlatform::UseLowPrecisionBuffer() { static bool sUseLowPrecisionBuffer; static bool sUseLowPrecisionBufferPrefCached = false; if (!sUseLowPrecisionBufferPrefCached) { sUseLowPrecisionBufferPrefCached = true; mozilla::Preferences::AddBoolVarCache(&sUseLowPrecisionBuffer, "layers.low-precision-buffer", false); } return sUseLowPrecisionBuffer; } float gfxPlatform::GetLowPrecisionResolution() { static float sLowPrecisionResolution; static bool sLowPrecisionResolutionPrefCached = false; if (!sLowPrecisionResolutionPrefCached) { int32_t lowPrecisionResolution = 250; sLowPrecisionResolutionPrefCached = true; mozilla::Preferences::AddIntVarCache(&lowPrecisionResolution, "layers.low-precision-resolution", 250); sLowPrecisionResolution = lowPrecisionResolution / 1000.f; } return sLowPrecisionResolution; } bool gfxPlatform::OffMainThreadCompositingEnabled() { return XRE_GetProcessType() == GeckoProcessType_Default ? CompositorParent::CompositorLoop() != nullptr : CompositorChild::ChildProcessHasCompositor(); } eCMSMode gfxPlatform::GetCMSMode() { if (gCMSInitialized == false) { gCMSInitialized = true; nsresult rv; int32_t mode; rv = Preferences::GetInt("gfx.color_management.mode", &mode); if (NS_SUCCEEDED(rv) && (mode >= 0) && (mode < eCMSMode_AllCount)) { gCMSMode = static_cast(mode); } bool enableV4; rv = Preferences::GetBool("gfx.color_management.enablev4", &enableV4); if (NS_SUCCEEDED(rv) && enableV4) { qcms_enable_iccv4(); } } return gCMSMode; } int gfxPlatform::GetRenderingIntent() { if (gCMSIntent == -2) { /* Try to query the pref system for a rendering intent. */ int32_t pIntent; if (NS_SUCCEEDED(Preferences::GetInt("gfx.color_management.rendering_intent", &pIntent))) { /* If the pref is within range, use it as an override. */ if ((pIntent >= QCMS_INTENT_MIN) && (pIntent <= QCMS_INTENT_MAX)) { gCMSIntent = pIntent; } /* If the pref is out of range, use embedded profile. */ else { gCMSIntent = -1; } } /* If we didn't get a valid intent from prefs, use the default. */ else { gCMSIntent = QCMS_INTENT_DEFAULT; } } return gCMSIntent; } void gfxPlatform::TransformPixel(const gfxRGBA& in, gfxRGBA& 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.Packed(gfxRGBA::PACKED_ABGR); qcms_transform_data(transform, (uint8_t *)&packed, (uint8_t *)&packed, 1); out.~gfxRGBA(); new (&out) gfxRGBA(packed, gfxRGBA::PACKED_ABGR); #else /* ARGB puts the bytes in |ARGB| order on big endian */ uint32_t packed = in.Packed(gfxRGBA::PACKED_ARGB); /* add one to move past the alpha byte */ qcms_transform_data(transform, (uint8_t *)&packed + 1, (uint8_t *)&packed + 1, 1); out.~gfxRGBA(); new (&out) gfxRGBA(packed, gfxRGBA::PACKED_ARGB); #endif } else if (&out != &in) out = in; } qcms_profile * gfxPlatform::GetPlatformCMSOutputProfile() { return nullptr; } 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.color_management.force_srgb", false)) { gCMSOutputProfile = GetCMSsRGBProfile(); } if (!gCMSOutputProfile) { nsAdoptingCString fname = Preferences::GetCString("gfx.color_management.display_profile"); if (!fname.IsEmpty()) { gCMSOutputProfile = qcms_profile_from_path(fname); } } if (!gCMSOutputProfile) { gCMSOutputProfile = gfxPlatform::GetPlatform()->GetPlatformCMSOutputProfile(); } /* 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 gCMSIntent = -2; gCMSMode = eCMSMode_Off; gCMSInitialized = false; } static void MigratePrefs() { /* Migrate from the boolean color_management.enabled pref - we now use color_management.mode. */ if (Preferences::HasUserValue("gfx.color_management.enabled")) { if (Preferences::GetBool("gfx.color_management.enabled", false)) { Preferences::SetInt("gfx.color_management.mode", static_cast(eCMSMode_All)); } Preferences::ClearUser("gfx.color_management.enabled"); } } // default SetupClusterBoundaries, based on Unicode properties; // platform subclasses may override if they wish void gfxPlatform::SetupClusterBoundaries(gfxTextRun *aTextRun, const PRUnichar *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(GFX_PREF_HARFBUZZ_SCRIPTS, aPref)) { mUseHarfBuzzScripts = 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) { #ifdef PR_LOGGING 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; #else return nullptr; #endif } 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 GFX_CONTENT_COLOR: switch (GetOffscreenFormat()) { case gfxImageFormatARGB32: return mozilla::gfx::FORMAT_B8G8R8A8; case gfxImageFormatRGB24: return mozilla::gfx::FORMAT_B8G8R8X8; case gfxImageFormatRGB16_565: return mozilla::gfx::FORMAT_R5G6B5; default: NS_NOTREACHED("unknown gfxImageFormat for GFX_CONTENT_COLOR"); return mozilla::gfx::FORMAT_B8G8R8A8; } case GFX_CONTENT_ALPHA: return mozilla::gfx::FORMAT_A8; case GFX_CONTENT_COLOR_ALPHA: return mozilla::gfx::FORMAT_B8G8R8A8; default: NS_NOTREACHED("unknown gfxContentType"); return mozilla::gfx::FORMAT_B8G8R8A8; } } gfxImageFormat gfxPlatform::OptimalFormatForContent(gfxContentType aContent) { switch (aContent) { case GFX_CONTENT_COLOR: return GetOffscreenFormat(); case GFX_CONTENT_ALPHA: return gfxImageFormatA8; case GFX_CONTENT_COLOR_ALPHA: return gfxImageFormatARGB32; default: NS_NOTREACHED("unknown gfxContentType"); return gfxImageFormatARGB32; } } void gfxPlatform::OrientationSyncPrefsObserverChanged() { mOrientationSyncMillis = Preferences::GetUint("layers.orientation.sync.timeout", (uint32_t)0); } uint32_t gfxPlatform::GetOrientationSyncMillis() const { return mOrientationSyncMillis; } /** * 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 sPrefLayersOffMainThreadCompositionEnabled = false; static bool sPrefLayersOffMainThreadCompositionTestingEnabled = false; static bool sPrefLayersOffMainThreadCompositionForceEnabled = false; static bool sPrefLayersAccelerationForceEnabled = false; static bool sPrefLayersAccelerationDisabled = false; static bool sPrefLayersPreferOpenGL = false; static bool sPrefLayersPreferD3D9 = false; static bool sPrefLayersDump = false; static bool sLayersSupportsD3D9 = false; static int sPrefLayoutFrameRate = -1; static bool sBufferRotationEnabled = false; static bool sComponentAlphaEnabled = true; static bool sPrefBrowserTabsRemote = 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"); sPrefLayersOffMainThreadCompositionEnabled = Preferences::GetBool("layers.offmainthreadcomposition.enabled", false); sPrefLayersOffMainThreadCompositionTestingEnabled = Preferences::GetBool("layers.offmainthreadcomposition.testing.enabled", false); sPrefLayersOffMainThreadCompositionForceEnabled = Preferences::GetBool("layers.offmainthreadcomposition.force-enabled", false); sPrefLayersAccelerationForceEnabled = Preferences::GetBool("layers.acceleration.force-enabled", false); sPrefLayersAccelerationDisabled = Preferences::GetBool("layers.acceleration.disabled", false); sPrefLayersPreferOpenGL = Preferences::GetBool("layers.prefer-opengl", false); sPrefLayersPreferD3D9 = Preferences::GetBool("layers.prefer-d3d9", false); sPrefLayersDump = Preferences::GetBool("layers.dump", false); sPrefLayoutFrameRate = Preferences::GetInt("layout.frame_rate", -1); sBufferRotationEnabled = Preferences::GetBool("layers.bufferrotation.enabled", true); sComponentAlphaEnabled = Preferences::GetBool("layers.componentalpha.enabled", true); sPrefBrowserTabsRemote = Preferences::GetBool("browser.tabs.remote", false); #ifdef XP_WIN if (sPrefLayersAccelerationForceEnabled) { sLayersSupportsD3D9 = true; } else { nsCOMPtr gfxInfo = do_GetService("@mozilla.org/gfx/info;1"); if (gfxInfo) { int32_t status; if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT3D_9_LAYERS, &status))) { if (status == nsIGfxInfo::FEATURE_NO_INFO) { sLayersSupportsD3D9 = true; } } } } #endif sLayersAccelerationPrefsInitialized = true; } } bool gfxPlatform::GetPrefLayersOffMainThreadCompositionEnabled() { InitLayersAccelerationPrefs(); return sPrefLayersOffMainThreadCompositionEnabled || sPrefLayersOffMainThreadCompositionForceEnabled || sPrefLayersOffMainThreadCompositionTestingEnabled; } bool gfxPlatform::GetPrefLayersOffMainThreadCompositionForceEnabled() { InitLayersAccelerationPrefs(); return sPrefLayersOffMainThreadCompositionForceEnabled; } bool gfxPlatform::GetPrefLayersAccelerationForceEnabled() { InitLayersAccelerationPrefs(); return sPrefLayersAccelerationForceEnabled; } bool gfxPlatform::OffMainThreadCompositionRequired() { InitLayersAccelerationPrefs(); #if defined(MOZ_WIDGET_GTK) && defined(NIGHTLY_BUILD) // Linux users who chose OpenGL are being grandfathered in to OMTC return sPrefBrowserTabsRemote || sPrefLayersAccelerationForceEnabled; #else return sPrefBrowserTabsRemote; #endif } bool gfxPlatform::GetPrefLayersAccelerationDisabled() { InitLayersAccelerationPrefs(); return sPrefLayersAccelerationDisabled; } bool gfxPlatform::GetPrefLayersPreferOpenGL() { InitLayersAccelerationPrefs(); return sPrefLayersPreferOpenGL; } bool gfxPlatform::GetPrefLayersPreferD3D9() { InitLayersAccelerationPrefs(); return sPrefLayersPreferD3D9; } 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; } int gfxPlatform::GetPrefLayoutFrameRate() { InitLayersAccelerationPrefs(); return sPrefLayoutFrameRate; } bool gfxPlatform::GetPrefLayersDump() { InitLayersAccelerationPrefs(); return sPrefLayersDump; } bool gfxPlatform::BufferRotationEnabled() { MutexAutoLock autoLock(*gGfxPlatformPrefsLock); InitLayersAccelerationPrefs(); return sBufferRotationEnabled; } void gfxPlatform::DisableBufferRotation() { MutexAutoLock autoLock(*gGfxPlatformPrefsLock); sBufferRotationEnabled = false; } bool gfxPlatform::ComponentAlphaEnabled() { #ifdef MOZ_GFX_OPTIMIZE_MOBILE return false; #endif InitLayersAccelerationPrefs(); return sComponentAlphaEnabled; }