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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/thebes/gfxPlatform.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/thebes/gfxPlatform.cpp')
-rw-r--r--gfx/thebes/gfxPlatform.cpp3902
1 files changed, 3902 insertions, 0 deletions
diff --git a/gfx/thebes/gfxPlatform.cpp b/gfx/thebes/gfxPlatform.cpp
new file mode 100644
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+++ b/gfx/thebes/gfxPlatform.cpp
@@ -0,0 +1,3902 @@
+/* -*- 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/FontPropertyTypes.h"
+#include "mozilla/RDDProcessManager.h"
+#include "mozilla/image/ImageMemoryReporter.h"
+#include "mozilla/layers/CompositorManagerChild.h"
+#include "mozilla/layers/CompositorThread.h"
+#include "mozilla/layers/ImageBridgeChild.h"
+#include "mozilla/layers/ISurfaceAllocator.h" // for GfxMemoryImageReporter
+#include "mozilla/layers/CompositorBridgeChild.h"
+#include "mozilla/layers/RemoteTextureMap.h"
+#include "mozilla/layers/VideoBridgeParent.h"
+#include "mozilla/webrender/RenderThread.h"
+#include "mozilla/webrender/WebRenderAPI.h"
+#include "mozilla/webrender/webrender_ffi.h"
+#include "mozilla/gfx/BuildConstants.h"
+#include "mozilla/gfx/gfxConfigManager.h"
+#include "mozilla/gfx/gfxVars.h"
+#include "mozilla/gfx/GPUProcessManager.h"
+#include "mozilla/gfx/GraphicsMessages.h"
+#include "mozilla/gfx/CanvasManagerChild.h"
+#include "mozilla/gfx/CanvasManagerParent.h"
+#include "mozilla/gfx/CanvasRenderThread.h"
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/DebugOnly.h"
+#include "mozilla/EnumTypeTraits.h"
+#include "mozilla/StaticPrefs_accessibility.h"
+#include "mozilla/StaticPrefs_apz.h"
+#include "mozilla/StaticPrefs_bidi.h"
+#include "mozilla/StaticPrefs_canvas.h"
+#include "mozilla/StaticPrefs_gfx.h"
+#include "mozilla/StaticPrefs_layout.h"
+#include "mozilla/StaticPrefs_layers.h"
+#include "mozilla/StaticPrefs_media.h"
+#include "mozilla/StaticPrefs_privacy.h"
+#include "mozilla/StaticPrefs_webgl.h"
+#include "mozilla/StaticPrefs_widget.h"
+#include "mozilla/Telemetry.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/Unused.h"
+#include "mozilla/IntegerPrintfMacros.h"
+#include "mozilla/Base64.h"
+#include "mozilla/VsyncDispatcher.h"
+
+#include "mozilla/Logging.h"
+#include "mozilla/Components.h"
+#include "nsAppRunner.h"
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsCSSProps.h"
+#include "nsContentUtils.h"
+
+#include "gfxCrashReporterUtils.h"
+#include "gfxPlatform.h"
+#include "gfxPlatformWorker.h"
+
+#include "gfxBlur.h"
+#include "gfxEnv.h"
+#include "gfxTextRun.h"
+#include "gfxUserFontSet.h"
+#include "gfxConfig.h"
+#include "GfxDriverInfo.h"
+#include "VRProcessManager.h"
+#include "VRThread.h"
+
+#ifdef XP_WIN
+# include <process.h>
+# define getpid _getpid
+#else
+# include <unistd.h>
+#endif
+
+#include "nsXULAppAPI.h"
+#include "nsIXULAppInfo.h"
+#include "nsDirectoryServiceUtils.h"
+#include "nsDirectoryServiceDefs.h"
+
+#if defined(XP_WIN)
+# include "gfxWindowsPlatform.h"
+# include "mozilla/widget/WinWindowOcclusionTracker.h"
+#elif defined(XP_MACOSX)
+# include "gfxPlatformMac.h"
+# include "gfxQuartzSurface.h"
+# include "nsCocoaFeatures.h"
+#elif defined(MOZ_WIDGET_GTK)
+# include "gfxPlatformGtk.h"
+#elif defined(ANDROID)
+# include "gfxAndroidPlatform.h"
+#endif
+#if defined(MOZ_WIDGET_ANDROID)
+# include "mozilla/jni/Utils.h" // for IsFennec
+#endif
+
+#ifdef XP_WIN
+# include "mozilla/WindowsVersion.h"
+# include "WinUtils.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 "gfxUtils.h" // for NextPowerOfTwo
+#include "gfxFontMissingGlyphs.h"
+
+#include "nsExceptionHandler.h"
+#include "nsServiceManagerUtils.h"
+#include "nsTArray.h"
+#include "nsIObserverService.h"
+#include "mozilla/widget/Screen.h"
+#include "mozilla/widget/ScreenManager.h"
+#include "MainThreadUtils.h"
+
+#include "nsWeakReference.h"
+
+#include "cairo.h"
+#include "qcms.h"
+
+#include "imgITools.h"
+
+#include "nsCRT.h"
+#include "GLContext.h"
+#include "GLContextProvider.h"
+#include "mozilla/gfx/Logging.h"
+
+#ifdef __GNUC__
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wshadow"
+#endif
+#include "skia/include/core/SkGraphics.h"
+#ifdef MOZ_ENABLE_FREETYPE
+# include "skia/include/ports/SkTypeface_cairo.h"
+#endif
+#include "mozilla/gfx/SkMemoryReporter.h"
+#ifdef __GNUC__
+# pragma GCC diagnostic pop // -Wshadow
+#endif
+static const uint32_t kDefaultGlyphCacheSize = -1;
+
+#include "mozilla/Preferences.h"
+#include "mozilla/Assertions.h"
+#include "mozilla/Atomics.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/Mutex.h"
+
+#include "nsAlgorithm.h"
+#include "nsIGfxInfo.h"
+#include "nsIXULRuntime.h"
+#include "VsyncSource.h"
+#include "SoftwareVsyncSource.h"
+#include "nscore.h" // for NS_FREE_PERMANENT_DATA
+#include "mozilla/dom/ContentChild.h"
+#include "mozilla/dom/ContentParent.h"
+#include "mozilla/dom/TouchEvent.h"
+#include "gfxVR.h"
+#include "VRManager.h"
+#include "VRManagerChild.h"
+#include "mozilla/gfx/GPUParent.h"
+#include "prsystem.h"
+
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/SourceSurfaceCairo.h"
+
+using namespace mozilla;
+using namespace mozilla::layers;
+using namespace mozilla::gl;
+using namespace mozilla::gfx;
+
+gfxPlatform* gPlatform = nullptr;
+static bool gEverInitialized = false;
+
+const ContentDeviceData* gContentDeviceInitData = nullptr;
+
+Atomic<bool, MemoryOrdering::ReleaseAcquire> gfxPlatform::gCMSInitialized;
+CMSMode gfxPlatform::gCMSMode = CMSMode::Off;
+
+// These two may point to the same profile
+qcms_profile* gfxPlatform::gCMSOutputProfile = nullptr;
+qcms_profile* gfxPlatform::gCMSsRGBProfile = nullptr;
+
+qcms_transform* gfxPlatform::gCMSRGBTransform = nullptr;
+qcms_transform* gfxPlatform::gCMSInverseRGBTransform = nullptr;
+qcms_transform* gfxPlatform::gCMSRGBATransform = nullptr;
+qcms_transform* gfxPlatform::gCMSBGRATransform = nullptr;
+
+/// 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(CrashReporter::Annotation aKey);
+ void Log(const std::string& aString) override;
+ void CrashAction(LogReason aReason) override;
+ bool UpdateStringsVector(const std::string& aString) override;
+
+ LoggingRecord LoggingRecordCopy() override;
+
+ void SetCircularBufferSize(uint32_t aCapacity);
+
+ private:
+ // Helper for the Log()
+ void UpdateCrashReport();
+
+ private:
+ LoggingRecord mBuffer;
+ CrashReporter::Annotation mCrashCriticalKey;
+ uint32_t mMaxCapacity;
+ int32_t mIndex;
+ Mutex mMutex MOZ_UNANNOTATED;
+};
+
+CrashStatsLogForwarder::CrashStatsLogForwarder(CrashReporter::Annotation 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<size_t>(aCapacity));
+}
+
+LoggingRecord CrashStatsLogForwarder::LoggingRecordCopy() {
+ 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());
+
+ double tStamp = (TimeStamp::NowLoRes() - TimeStamp::ProcessCreation())
+ .ToSecondsSigDigits();
+
+ // Checking for index >= mBuffer.size(), rather than index == mBuffer.size()
+ // just out of paranoia, but we know index <= mBuffer.size().
+ LoggingRecordEntry newEntry(mIndex, aString, tStamp);
+ if (index >= static_cast<int32_t>(mBuffer.size())) {
+ mBuffer.push_back(newEntry);
+ } else {
+ mBuffer[index] = newEntry;
+ }
+ return true;
+}
+
+void CrashStatsLogForwarder::UpdateCrashReport() {
+ std::stringstream message;
+ std::string logAnnotation;
+
+ switch (XRE_GetProcessType()) {
+ case GeckoProcessType_Default:
+ logAnnotation = "|[";
+ break;
+ case GeckoProcessType_Content:
+ logAnnotation = "|[C";
+ break;
+ case GeckoProcessType_GPU:
+ logAnnotation = "|[G";
+ break;
+ default:
+ logAnnotation = "|[X";
+ break;
+ }
+
+ for (auto& it : mBuffer) {
+ message << logAnnotation << std::get<0>(it) << "]" << std::get<1>(it)
+ << " (t=" << std::get<2>(it) << ") ";
+ }
+
+ nsCString reportString(message.str().c_str());
+ nsresult annotated =
+ CrashReporter::AnnotateCrashReport(mCrashCriticalKey, reportString);
+
+ if (annotated != NS_OK) {
+ printf("Crash Annotation %s: %s",
+ CrashReporter::AnnotationToString(mCrashCriticalKey),
+ message.str().c_str());
+ }
+}
+
+class LogForwarderEvent : public Runnable {
+ virtual ~LogForwarderEvent() = default;
+
+ public:
+ NS_INLINE_DECL_REFCOUNTING_INHERITED(LogForwarderEvent, Runnable)
+
+ explicit LogForwarderEvent(const nsCString& aMessage)
+ : mozilla::Runnable("LogForwarderEvent"), mMessage(aMessage) {}
+
+ NS_IMETHOD Run() override {
+ MOZ_ASSERT(NS_IsMainThread() &&
+ (XRE_IsContentProcess() || XRE_IsGPUProcess()));
+
+ if (XRE_IsContentProcess()) {
+ dom::ContentChild* cc = dom::ContentChild::GetSingleton();
+ Unused << cc->SendGraphicsError(mMessage);
+ } else if (XRE_IsGPUProcess()) {
+ GPUParent* gp = GPUParent::GetSingleton();
+ Unused << gp->SendGraphicsError(mMessage);
+ }
+
+ return NS_OK;
+ }
+
+ protected:
+ nsCString mMessage;
+};
+
+void CrashStatsLogForwarder::Log(const std::string& aString) {
+ MutexAutoLock lock(mMutex);
+
+ if (UpdateStringsVector(aString)) {
+ UpdateCrashReport();
+ }
+
+ // Add it to the parent strings
+ if (!XRE_IsParentProcess()) {
+ nsCString stringToSend(aString.c_str());
+ if (NS_IsMainThread()) {
+ if (XRE_IsContentProcess()) {
+ dom::ContentChild* cc = dom::ContentChild::GetSingleton();
+ Unused << cc->SendGraphicsError(stringToSend);
+ } else if (XRE_IsGPUProcess()) {
+ GPUParent* gp = GPUParent::GetSingleton();
+ Unused << gp->SendGraphicsError(stringToSend);
+ }
+ } else {
+ nsCOMPtr<nsIRunnable> r1 = new LogForwarderEvent(stringToSend);
+ NS_DispatchToMainThread(r1);
+ }
+ }
+}
+
+class CrashTelemetryEvent : public Runnable {
+ virtual ~CrashTelemetryEvent() = default;
+
+ public:
+ NS_INLINE_DECL_REFCOUNTING_INHERITED(CrashTelemetryEvent, Runnable)
+
+ explicit CrashTelemetryEvent(uint32_t aReason)
+ : mozilla::Runnable("CrashTelemetryEvent"), mReason(aReason) {}
+
+ NS_IMETHOD Run() override {
+ MOZ_ASSERT(NS_IsMainThread());
+ Telemetry::Accumulate(Telemetry::GFX_CRASH, mReason);
+ return NS_OK;
+ }
+
+ protected:
+ uint32_t mReason;
+};
+
+void CrashStatsLogForwarder::CrashAction(LogReason aReason) {
+#ifndef RELEASE_OR_BETA
+ // Non-release builds crash by default, but will use telemetry
+ // if this environment variable is present.
+ static bool useTelemetry = gfxEnv::MOZ_GFX_CRASH_TELEMETRY();
+#else
+ // Release builds use telemetry by default, but will crash instead
+ // if this environment variable is present.
+ static bool useTelemetry = !gfxEnv::MOZ_GFX_CRASH_MOZ_CRASH();
+#endif
+
+ if (useTelemetry) {
+ // The callers need to assure that aReason is in the range
+ // that the telemetry call below supports.
+ if (NS_IsMainThread()) {
+ Telemetry::Accumulate(Telemetry::GFX_CRASH, (uint32_t)aReason);
+ } else {
+ nsCOMPtr<nsIRunnable> r1 = new CrashTelemetryEvent((uint32_t)aReason);
+ NS_DispatchToMainThread(r1);
+ }
+ } else {
+ // ignoring aReason, we can get the information we need from the stack
+ MOZ_CRASH("GFX_CRASH");
+ }
+}
+
+#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"
+#if defined(XP_MACOSX)
+# define GFX_PREF_CORETEXT_SHAPING "gfx.font_rendering.coretext.enabled"
+#endif
+
+#define FONT_VARIATIONS_PREF "layout.css.font-variations.enabled"
+
+static const char* kObservedPrefs[] = {"gfx.downloadable_fonts.",
+ "gfx.font_rendering.", nullptr};
+
+static void FontPrefChanged(const char* aPref, void* aData) {
+ MOZ_ASSERT(aPref);
+ NS_ASSERTION(gfxPlatform::GetPlatform(), "the singleton instance has gone");
+ gfxPlatform::GetPlatform()->FontsPrefsChanged(aPref);
+}
+
+void gfxPlatform::OnMemoryPressure(layers::MemoryPressureReason aWhy) {
+ Factory::PurgeAllCaches();
+ gfxGradientCache::PurgeAllCaches();
+ gfxFontMissingGlyphs::Purge();
+ PurgeSkiaFontCache();
+ if (XRE_IsParentProcess()) {
+ layers::CompositorManagerChild* manager =
+ CompositorManagerChild::GetInstance();
+ if (manager) {
+ manager->SendNotifyMemoryPressure();
+ }
+ }
+}
+
+gfxPlatform::gfxPlatform()
+ : mAzureCanvasBackendCollector(this, &gfxPlatform::GetAzureBackendInfo),
+ mApzSupportCollector(this, &gfxPlatform::GetApzSupportInfo),
+ mFrameStatsCollector(this, &gfxPlatform::GetFrameStats),
+ mCMSInfoCollector(this, &gfxPlatform::GetCMSSupportInfo),
+ mDisplayInfoCollector(this, &gfxPlatform::GetDisplayInfo),
+ mOverlayInfoCollector(this, &gfxPlatform::GetOverlayInfo),
+ mSwapChainInfoCollector(this, &gfxPlatform::GetSwapChainInfo),
+ mCompositorBackend(layers::LayersBackend::LAYERS_NONE),
+ mScreenDepth(0) {
+ mAllowDownloadableFonts = UNINITIALIZED_VALUE;
+
+ InitBackendPrefs(GetBackendPrefs());
+ VRManager::ManagerInit();
+}
+
+gfxPlatform* gfxPlatform::GetPlatform() {
+ if (!gPlatform) {
+ MOZ_RELEASE_ASSERT(!XRE_IsContentProcess(),
+ "Content Process should have called InitChild() before "
+ "first GetPlatform()");
+ Init();
+ }
+ return gPlatform;
+}
+
+bool gfxPlatform::Initialized() { return !!gPlatform; }
+
+/* static */
+void gfxPlatform::InitChild(const ContentDeviceData& aData) {
+ MOZ_ASSERT(XRE_IsContentProcess());
+ MOZ_RELEASE_ASSERT(!gPlatform,
+ "InitChild() should be called before first GetPlatform()");
+ // Make the provided initial ContentDeviceData available to the init
+ // routines, so they don't have to do a sync request from the parent.
+ gContentDeviceInitData = &aData;
+ Init();
+ gContentDeviceInitData = nullptr;
+}
+
+#define WR_DEBUG_PREF "gfx.webrender.debug"
+
+static void SwapIntervalPrefChangeCallback(const char* aPrefName, void*) {
+ bool egl = Preferences::GetBool("gfx.swap-interval.egl", false);
+ bool glx = Preferences::GetBool("gfx.swap-interval.glx", false);
+ gfxVars::SetSwapIntervalEGL(egl);
+ gfxVars::SetSwapIntervalGLX(glx);
+}
+
+static void WebRendeProfilerUIPrefChangeCallback(const char* aPrefName, void*) {
+ nsCString uiString;
+ if (NS_SUCCEEDED(Preferences::GetCString("gfx.webrender.debug.profiler-ui",
+ uiString))) {
+ gfxVars::SetWebRenderProfilerUI(uiString);
+ }
+}
+
+// List of boolean dynamic parameter for WebRender.
+//
+// The parameters in this list are:
+// - The pref name.
+// - The BoolParameter enum variant (see webrender_api/src/lib.rs)
+// - A default value.
+#define WR_BOOL_PARAMETER_LIST(_) \
+ _("gfx.webrender.batched-texture-uploads", \
+ wr::BoolParameter::BatchedUploads, true) \
+ _("gfx.webrender.draw-calls-for-texture-copy", \
+ wr::BoolParameter::DrawCallsForTextureCopy, true) \
+ _("gfx.webrender.pbo-uploads", wr::BoolParameter::PboUploads, true) \
+ _("gfx.webrender.multithreading", wr::BoolParameter::Multithreading, true)
+
+static void WebRenderBoolParameterChangeCallback(const char*, void*) {
+ uint32_t bits = 0;
+
+#define WR_BOOL_PARAMETER(name, key, default_val) \
+ if (Preferences::GetBool(name, default_val)) { \
+ bits |= 1 << (uint32_t)key; \
+ }
+
+ WR_BOOL_PARAMETER_LIST(WR_BOOL_PARAMETER)
+#undef WR_BOOL_PARAMETER
+
+ gfx::gfxVars::SetWebRenderBoolParameters(bits);
+}
+
+static void RegisterWebRenderBoolParamCallback() {
+#define WR_BOOL_PARAMETER(name, _key, _default_val) \
+ Preferences::RegisterCallback(WebRenderBoolParameterChangeCallback, name);
+
+ WR_BOOL_PARAMETER_LIST(WR_BOOL_PARAMETER)
+#undef WR_BOOL_PARAMETER
+
+ WebRenderBoolParameterChangeCallback(nullptr, nullptr);
+}
+
+static void WebRenderDebugPrefChangeCallback(const char* aPrefName, void*) {
+ wr::DebugFlags flags{0};
+#define GFX_WEBRENDER_DEBUG(suffix, bit) \
+ if (Preferences::GetBool(WR_DEBUG_PREF suffix, false)) { \
+ flags |= (bit); \
+ }
+
+ GFX_WEBRENDER_DEBUG(".profiler", wr::DebugFlags::PROFILER_DBG)
+ GFX_WEBRENDER_DEBUG(".render-targets", wr::DebugFlags::RENDER_TARGET_DBG)
+ GFX_WEBRENDER_DEBUG(".texture-cache", wr::DebugFlags::TEXTURE_CACHE_DBG)
+ GFX_WEBRENDER_DEBUG(".gpu-time-queries", wr::DebugFlags::GPU_TIME_QUERIES)
+ GFX_WEBRENDER_DEBUG(".gpu-sample-queries", wr::DebugFlags::GPU_SAMPLE_QUERIES)
+ GFX_WEBRENDER_DEBUG(".disable-batching", wr::DebugFlags::DISABLE_BATCHING)
+ GFX_WEBRENDER_DEBUG(".epochs", wr::DebugFlags::EPOCHS)
+ GFX_WEBRENDER_DEBUG(".smart-profiler", wr::DebugFlags::SMART_PROFILER)
+ GFX_WEBRENDER_DEBUG(".echo-driver-messages",
+ wr::DebugFlags::ECHO_DRIVER_MESSAGES)
+ GFX_WEBRENDER_DEBUG(".show-overdraw", wr::DebugFlags::SHOW_OVERDRAW)
+ GFX_WEBRENDER_DEBUG(".gpu-cache", wr::DebugFlags::GPU_CACHE_DBG)
+ GFX_WEBRENDER_DEBUG(".texture-cache.clear-evicted",
+ wr::DebugFlags::TEXTURE_CACHE_DBG_CLEAR_EVICTED)
+ GFX_WEBRENDER_DEBUG(".picture-caching", wr::DebugFlags::PICTURE_CACHING_DBG)
+ GFX_WEBRENDER_DEBUG(".force-picture-invalidation",
+ wr::DebugFlags::FORCE_PICTURE_INVALIDATION)
+ GFX_WEBRENDER_DEBUG(".primitives", wr::DebugFlags::PRIMITIVE_DBG)
+ // Bit 18 is for the zoom display, which requires the mouse position and thus
+ // currently only works in wrench.
+ GFX_WEBRENDER_DEBUG(".small-screen", wr::DebugFlags::SMALL_SCREEN)
+ GFX_WEBRENDER_DEBUG(".disable-opaque-pass",
+ wr::DebugFlags::DISABLE_OPAQUE_PASS)
+ GFX_WEBRENDER_DEBUG(".disable-alpha-pass", wr::DebugFlags::DISABLE_ALPHA_PASS)
+ GFX_WEBRENDER_DEBUG(".disable-clip-masks", wr::DebugFlags::DISABLE_CLIP_MASKS)
+ GFX_WEBRENDER_DEBUG(".disable-text-prims", wr::DebugFlags::DISABLE_TEXT_PRIMS)
+ GFX_WEBRENDER_DEBUG(".disable-gradient-prims",
+ wr::DebugFlags::DISABLE_GRADIENT_PRIMS)
+ GFX_WEBRENDER_DEBUG(".obscure-images", wr::DebugFlags::OBSCURE_IMAGES)
+ GFX_WEBRENDER_DEBUG(".glyph-flashing", wr::DebugFlags::GLYPH_FLASHING)
+ GFX_WEBRENDER_DEBUG(".capture-profiler", wr::DebugFlags::PROFILER_CAPTURE)
+ GFX_WEBRENDER_DEBUG(".window-visibility",
+ wr::DebugFlags::WINDOW_VISIBILITY_DBG)
+ GFX_WEBRENDER_DEBUG(".restrict-blob-size", wr::DebugFlags::RESTRICT_BLOB_SIZE)
+#undef GFX_WEBRENDER_DEBUG
+ gfx::gfxVars::SetWebRenderDebugFlags(flags.bits);
+}
+
+static void WebRenderQualityPrefChangeCallback(const char* aPref, void*) {
+ gfxPlatform::GetPlatform()->UpdateForceSubpixelAAWherePossible();
+}
+
+static void WebRenderBatchingPrefChangeCallback(const char* aPrefName, void*) {
+ uint32_t count = Preferences::GetUint(
+ StaticPrefs::GetPrefName_gfx_webrender_batching_lookback(), 10);
+
+ gfx::gfxVars::SetWebRenderBatchingLookback(count);
+}
+
+static void WebRenderBlobTileSizePrefChangeCallback(const char* aPrefName,
+ void*) {
+ uint32_t tileSize = Preferences::GetUint(
+ StaticPrefs::GetPrefName_gfx_webrender_blob_tile_size(), 256);
+ gfx::gfxVars::SetWebRenderBlobTileSize(tileSize);
+}
+
+static void WebRenderUploadThresholdPrefChangeCallback(const char* aPrefName,
+ void*) {
+ int value = Preferences::GetInt(
+ StaticPrefs::GetPrefName_gfx_webrender_batched_upload_threshold(),
+ 512 * 512);
+
+ gfxVars::SetWebRenderBatchedUploadThreshold(value);
+}
+
+static uint32_t GetSkiaGlyphCacheSize() {
+ // Only increase font cache size on non-android to save memory.
+#if !defined(MOZ_WIDGET_ANDROID)
+ // 10mb as the default pref cache size on desktop due to talos perf tweaking.
+ // Chromium uses 20mb and skia default uses 2mb.
+ // We don't need to change the font cache count since we usually
+ // cache thrash due to asian character sets in talos.
+ // Only increase memory on the content process
+ uint32_t cacheSize =
+ StaticPrefs::gfx_content_skia_font_cache_size_AtStartup() * 1024 * 1024;
+ if (mozilla::BrowserTabsRemoteAutostart()) {
+ return XRE_IsContentProcess() ? cacheSize : kDefaultGlyphCacheSize;
+ }
+
+ return cacheSize;
+#else
+ return kDefaultGlyphCacheSize;
+#endif // MOZ_WIDGET_ANDROID
+}
+
+class WebRenderMemoryReporter final : public nsIMemoryReporter {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIMEMORYREPORTER
+
+ private:
+ ~WebRenderMemoryReporter() = default;
+};
+
+// Memory reporter for WebRender.
+//
+// The reporting within WebRender is manual and incomplete. We could do a much
+// more thorough job by depending on the malloc_size_of crate, but integrating
+// that into WebRender is tricky [1].
+//
+// So the idea is to start with manual reporting for the large allocations
+// detected by DMD, and see how much that can cover in practice (which may
+// require a few rounds of iteration). If that approach turns out to be
+// fundamentally insufficient, we can either duplicate more of the
+// malloc_size_of functionality in WebRender, or deal with the complexity of a
+// gecko-only crate dependency.
+//
+// [1] See https://bugzilla.mozilla.org/show_bug.cgi?id=1480293#c1
+struct WebRenderMemoryReporterHelper {
+ WebRenderMemoryReporterHelper(nsIHandleReportCallback* aCallback,
+ nsISupports* aData)
+ : mCallback(aCallback), mData(aData) {}
+ nsCOMPtr<nsIHandleReportCallback> mCallback;
+ nsCOMPtr<nsISupports> mData;
+
+ void Report(size_t aBytes, const char* aName) const {
+ nsPrintfCString path("explicit/gfx/webrender/%s", aName);
+ nsCString desc("CPU heap memory used by WebRender"_ns);
+ ReportInternal(aBytes, path, desc, nsIMemoryReporter::KIND_HEAP);
+ }
+
+ void ReportTexture(size_t aBytes, const char* aName) const {
+ nsPrintfCString path("gfx/webrender/textures/%s", aName);
+ nsCString desc("GPU texture memory used by WebRender"_ns);
+ ReportInternal(aBytes, path, desc, nsIMemoryReporter::KIND_OTHER);
+ }
+
+ void ReportTotalGPUBytes(size_t aBytes) const {
+ nsCString path("gfx/webrender/total-gpu-bytes"_ns);
+ nsCString desc(nsLiteralCString(
+ "Total GPU bytes used by WebRender (should match textures/ sum)"));
+ ReportInternal(aBytes, path, desc, nsIMemoryReporter::KIND_OTHER);
+ }
+
+ void ReportInternal(size_t aBytes, nsACString& aPath, nsACString& aDesc,
+ int32_t aKind) const {
+ // Generally, memory reporters pass the empty string as the process name to
+ // indicate "current process". However, if we're using a GPU process, the
+ // measurements will actually take place in that process, and it's easier to
+ // just note that here rather than trying to invoke the memory reporter in
+ // the GPU process.
+ nsAutoCString processName;
+ if (gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
+ GPUParent::GetGPUProcessName(processName);
+ }
+
+ mCallback->Callback(processName, aPath, aKind,
+ nsIMemoryReporter::UNITS_BYTES, aBytes, aDesc, mData);
+ }
+};
+
+static void FinishAsyncMemoryReport() {
+ nsCOMPtr<nsIMemoryReporterManager> imgr =
+ do_GetService("@mozilla.org/memory-reporter-manager;1");
+ if (imgr) {
+ imgr->EndReport();
+ }
+}
+
+// clang-format off
+// (For some reason, clang-format gets the second macro right, but totally mangles the first).
+#define REPORT_INTERNER(id) \
+ helper.Report(aReport.interning.interners.id, \
+ "interning/" #id "/interners");
+// clang-format on
+
+#define REPORT_DATA_STORE(id) \
+ helper.Report(aReport.interning.data_stores.id, \
+ "interning/" #id "/data-stores");
+
+NS_IMPL_ISUPPORTS(WebRenderMemoryReporter, nsIMemoryReporter)
+
+NS_IMETHODIMP
+WebRenderMemoryReporter::CollectReports(nsIHandleReportCallback* aHandleReport,
+ nsISupports* aData, bool aAnonymize) {
+ MOZ_ASSERT(XRE_IsParentProcess());
+ MOZ_ASSERT(NS_IsMainThread());
+ layers::CompositorManagerChild* manager =
+ CompositorManagerChild::GetInstance();
+ if (!manager) {
+ FinishAsyncMemoryReport();
+ return NS_OK;
+ }
+
+ WebRenderMemoryReporterHelper helper(aHandleReport, aData);
+ manager->SendReportMemory(
+ [=](wr::MemoryReport aReport) {
+ // CPU Memory.
+ helper.Report(aReport.clip_stores, "clip-stores");
+ helper.Report(aReport.gpu_cache_metadata, "gpu-cache/metadata");
+ helper.Report(aReport.gpu_cache_cpu_mirror, "gpu-cache/cpu-mirror");
+ helper.Report(aReport.render_tasks, "render-tasks");
+ helper.Report(aReport.hit_testers, "hit-testers");
+ helper.Report(aReport.fonts, "resource-cache/fonts");
+ helper.Report(aReport.weak_fonts, "resource-cache/weak-fonts");
+ helper.Report(aReport.images, "resource-cache/images");
+ helper.Report(aReport.rasterized_blobs,
+ "resource-cache/rasterized-blobs");
+ helper.Report(aReport.texture_cache_structures,
+ "texture-cache/structures");
+ helper.Report(aReport.shader_cache, "shader-cache");
+ helper.Report(aReport.display_list, "display-list");
+ helper.Report(aReport.swgl, "swgl");
+ helper.Report(aReport.upload_staging_memory, "upload-stagin-memory");
+
+ WEBRENDER_FOR_EACH_INTERNER(REPORT_INTERNER);
+ WEBRENDER_FOR_EACH_INTERNER(REPORT_DATA_STORE);
+
+ // GPU Memory.
+ helper.ReportTexture(aReport.gpu_cache_textures, "gpu-cache");
+ helper.ReportTexture(aReport.vertex_data_textures, "vertex-data");
+ helper.ReportTexture(aReport.render_target_textures, "render-targets");
+ helper.ReportTexture(aReport.depth_target_textures, "depth-targets");
+ helper.ReportTexture(aReport.picture_tile_textures, "picture-tiles");
+ helper.ReportTexture(aReport.atlas_textures, "texture-cache/atlas");
+ helper.ReportTexture(aReport.standalone_textures,
+ "texture-cache/standalone");
+ helper.ReportTexture(aReport.texture_upload_pbos,
+ "texture-upload-pbos");
+ helper.ReportTexture(aReport.swap_chain, "swap-chains");
+ helper.ReportTexture(aReport.render_texture_hosts,
+ "render-texture-hosts");
+ helper.ReportTexture(aReport.upload_staging_textures,
+ "upload-staging-textures");
+
+ FinishAsyncMemoryReport();
+ },
+ [](mozilla::ipc::ResponseRejectReason&& aReason) {
+ FinishAsyncMemoryReport();
+ });
+
+ return NS_OK;
+}
+
+#undef REPORT_INTERNER
+#undef REPORT_DATA_STORE
+
+std::atomic<int8_t> gfxPlatform::sHasVariationFontSupport = -1;
+
+bool gfxPlatform::HasVariationFontSupport() {
+ // We record the status here: 0 for not supported, 1 for supported.
+ if (sHasVariationFontSupport < 0) {
+ // It doesn't actually matter if we race with another thread setting this,
+ // as any thread will set it to the same value.
+#if defined(XP_WIN)
+ sHasVariationFontSupport = gfxWindowsPlatform::CheckVariationFontSupport();
+#elif defined(XP_MACOSX)
+ sHasVariationFontSupport = gfxPlatformMac::CheckVariationFontSupport();
+#elif defined(MOZ_WIDGET_GTK)
+ sHasVariationFontSupport = gfxPlatformGtk::CheckVariationFontSupport();
+#elif defined(ANDROID)
+ sHasVariationFontSupport = gfxAndroidPlatform::CheckVariationFontSupport();
+#else
+# error "No gfxPlatform implementation available"
+#endif
+ }
+ return sHasVariationFontSupport > 0;
+}
+
+void gfxPlatform::Init() {
+ MOZ_RELEASE_ASSERT(!XRE_IsGPUProcess(), "GFX: Not allowed in GPU process.");
+ MOZ_RELEASE_ASSERT(!XRE_IsRDDProcess(), "GFX: Not allowed in RDD process.");
+ MOZ_RELEASE_ASSERT(NS_IsMainThread(), "GFX: Not in main thread.");
+
+ if (gEverInitialized) {
+ MOZ_CRASH("Already started???");
+ }
+ gEverInitialized = true;
+
+ gfxVars::Initialize();
+
+ gfxConfig::Init();
+
+ if (XRE_IsParentProcess()) {
+ GPUProcessManager::Initialize();
+ RDDProcessManager::Initialize();
+
+ nsCOMPtr<nsIFile> file;
+ nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(file));
+ if (NS_FAILED(rv)) {
+ gfxVars::SetGREDirectory(nsString());
+ } else {
+ nsAutoString path;
+ file->GetPath(path);
+ gfxVars::SetGREDirectory(nsString(path));
+ }
+ }
+
+ if (XRE_IsParentProcess()) {
+ nsCOMPtr<nsIFile> profDir;
+ nsresult rv = NS_GetSpecialDirectory(NS_APP_PROFILE_DIR_STARTUP,
+ getter_AddRefs(profDir));
+ if (NS_FAILED(rv)) {
+ gfxVars::SetProfDirectory(nsString());
+ } else {
+ nsAutoString path;
+ profDir->GetPath(path);
+ gfxVars::SetProfDirectory(nsString(path));
+ }
+
+ nsAutoCString path;
+ Preferences::GetCString("layers.windowrecording.path", path);
+ gfxVars::SetLayersWindowRecordingPath(path);
+
+ if (gFxREmbedded) {
+ gfxVars::SetFxREmbedded(true);
+ }
+ }
+
+ // Drop a note in the crash report if we end up forcing an option that could
+ // destabilize things. New items should be appended at the end (of an
+ // existing or in a new section), so that we don't have to know the version to
+ // interpret these cryptic strings.
+ {
+ nsAutoCString forcedPrefs;
+ // D2D prefs
+ forcedPrefs.AppendPrintf(
+ "FP(D%d%d", StaticPrefs::gfx_direct2d_disabled_AtStartup(),
+ StaticPrefs::gfx_direct2d_force_enabled_AtStartup());
+ // Layers prefs
+ forcedPrefs.AppendPrintf(
+ "-L%d%d%d%d",
+ StaticPrefs::layers_amd_switchable_gfx_enabled_AtStartup(),
+ StaticPrefs::layers_acceleration_disabled_AtStartup_DoNotUseDirectly(),
+ StaticPrefs::
+ layers_acceleration_force_enabled_AtStartup_DoNotUseDirectly(),
+ StaticPrefs::layers_d3d11_force_warp_AtStartup());
+ // WebGL prefs
+ forcedPrefs.AppendPrintf(
+ "-W%d%d%d%d%d%d%d", StaticPrefs::webgl_angle_force_d3d11(),
+ StaticPrefs::webgl_angle_force_warp(), StaticPrefs::webgl_disabled(),
+ StaticPrefs::webgl_disable_angle(), StaticPrefs::webgl_dxgl_enabled(),
+ StaticPrefs::webgl_force_enabled(), StaticPrefs::webgl_msaa_force());
+ // Prefs that don't fit into any of the other sections
+ forcedPrefs.AppendPrintf("-T%d%d%d) ",
+ StaticPrefs::gfx_android_rgb16_force_AtStartup(),
+ StaticPrefs::gfx_canvas_accelerated(),
+ StaticPrefs::layers_force_shmem_tiles_AtStartup());
+ ScopedGfxFeatureReporter::AppNote(forcedPrefs);
+ }
+
+ InitMoz2DLogging();
+
+ /* 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<nsIGfxInfo> gfxInfo;
+ /* this currently will only succeed on Windows */
+ gfxInfo = components::GfxInfo::Service();
+
+ if (XRE_IsParentProcess()) {
+ // Some gfxVars must be initialized prior gPlatform for coherent results.
+ gfxVars::SetDXInterop2Blocked(IsDXInterop2Blocked());
+ gfxVars::SetDXNV12Blocked(IsDXNV12Blocked());
+ gfxVars::SetDXP010Blocked(IsDXP010Blocked());
+ gfxVars::SetDXP016Blocked(IsDXP016Blocked());
+ }
+
+#if defined(XP_WIN)
+ gPlatform = new gfxWindowsPlatform;
+#elif defined(XP_MACOSX)
+ gPlatform = new gfxPlatformMac;
+#elif defined(MOZ_WIDGET_GTK)
+ gPlatform = new gfxPlatformGtk;
+#elif defined(ANDROID)
+ gPlatform = new gfxAndroidPlatform;
+#else
+# error "No gfxPlatform implementation available"
+#endif
+ gPlatform->PopulateScreenInfo();
+ gPlatform->InitAcceleration();
+ gPlatform->InitWebRenderConfig();
+
+ gPlatform->InitHardwareVideoConfig();
+ gPlatform->InitWebGLConfig();
+ gPlatform->InitWebGPUConfig();
+ gPlatform->InitWindowOcclusionConfig();
+ gPlatform->InitBackdropFilterConfig();
+ gPlatform->InitAcceleratedCanvas2DConfig();
+
+#if defined(XP_WIN)
+ // When using WebRender, we defer initialization of the D3D11 devices until
+ // the (rare) cases where they're used. Note that the GPU process where
+ // WebRender runs doesn't initialize gfxPlatform and performs explicit
+ // initialization of the bits it needs.
+ if (XRE_IsParentProcess() && !gfxConfig::IsEnabled(Feature::GPU_PROCESS) &&
+ StaticPrefs::
+ gfx_webrender_enabled_no_gpu_process_with_angle_win_AtStartup()) {
+ gPlatform->EnsureDevicesInitialized();
+ }
+#endif
+
+ if (gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
+ GPUProcessManager* gpu = GPUProcessManager::Get();
+ Unused << gpu->LaunchGPUProcess();
+ }
+
+ if (XRE_IsParentProcess()) {
+ // Create the global vsync source and dispatcher.
+ RefPtr<VsyncSource> vsyncSource =
+ gfxPlatform::ForceSoftwareVsync()
+ ? gPlatform->GetSoftwareVsyncSource()
+ : gPlatform->GetGlobalHardwareVsyncSource();
+ gPlatform->mVsyncDispatcher = new VsyncDispatcher(vsyncSource);
+
+ // Listen for layout.frame_rate pref changes.
+ Preferences::RegisterCallback(
+ gfxPlatform::ReInitFrameRate,
+ nsDependentCString(StaticPrefs::GetPrefName_layout_frame_rate()));
+ Preferences::RegisterCallback(
+ gfxPlatform::ReInitFrameRate,
+ nsDependentCString(
+ StaticPrefs::GetPrefName_privacy_resistFingerprinting()));
+ }
+
+ // Create the sRGB to output display profile transforms. They can be accessed
+ // off the main thread so we want to avoid a race condition.
+ InitializeCMS();
+
+ SkGraphics::Init();
+#ifdef MOZ_ENABLE_FREETYPE
+ SkInitCairoFT(gPlatform->FontHintingEnabled());
+#endif
+ gfxGradientCache::Init();
+
+ InitLayersIPC();
+
+ // This *create* the platform font list instance, but may not *initialize* it
+ // yet if the gfx.font-list.lazy-init.enabled pref is set. The first *use*
+ // of the list will ensure it is initialized.
+ if (!gPlatform->CreatePlatformFontList()) {
+ MOZ_CRASH("Could not initialize gfxPlatformFontList");
+ }
+
+ gPlatform->mScreenReferenceDrawTarget =
+ gPlatform->CreateOffscreenContentDrawTarget(IntSize(1, 1),
+ SurfaceFormat::B8G8R8A8);
+ if (!gPlatform->mScreenReferenceDrawTarget ||
+ !gPlatform->mScreenReferenceDrawTarget->IsValid()) {
+ // If TDR is detected, create a draw target with software backend
+ // and it should be replaced later when the process gets the device
+ // reset notification.
+ if (!gPlatform->DidRenderingDeviceReset()) {
+ gfxCriticalError() << "Could not initialize mScreenReferenceDrawTarget";
+ }
+ }
+
+ if (NS_FAILED(gfxFontCache::Init())) {
+ MOZ_CRASH("Could not initialize gfxFontCache");
+ }
+
+ Preferences::RegisterPrefixCallbacks(FontPrefChanged, kObservedPrefs);
+
+ GLContext::PlatformStartup();
+
+ // Listen to memory pressure event so we can purge DrawTarget caches
+ gPlatform->mMemoryPressureObserver =
+ layers::MemoryPressureObserver::Create(gPlatform);
+
+ // Request the imgITools service, implicitly initializing ImageLib.
+ nsCOMPtr<imgITools> imgTools = do_GetService("@mozilla.org/image/tools;1");
+ if (!imgTools) {
+ MOZ_CRASH("Could not initialize ImageLib");
+ }
+
+ RegisterStrongMemoryReporter(new GfxMemoryImageReporter());
+ if (XRE_IsParentProcess()) {
+ RegisterStrongAsyncMemoryReporter(new WebRenderMemoryReporter());
+ }
+
+ RegisterStrongMemoryReporter(new SkMemoryReporter());
+
+ uint32_t skiaCacheSize = GetSkiaGlyphCacheSize();
+ if (skiaCacheSize != kDefaultGlyphCacheSize) {
+ SkGraphics::SetFontCacheLimit(skiaCacheSize);
+ }
+
+ InitNullMetadata();
+ InitOpenGLConfig();
+
+ if (XRE_IsParentProcess()) {
+ Preferences::Unlock(FONT_VARIATIONS_PREF);
+ if (!gfxPlatform::HasVariationFontSupport()) {
+ // Ensure variation fonts are disabled and the pref is locked.
+ Preferences::SetBool(FONT_VARIATIONS_PREF, false, PrefValueKind::Default);
+ Preferences::SetBool(FONT_VARIATIONS_PREF, false);
+ Preferences::Lock(FONT_VARIATIONS_PREF);
+ }
+ }
+
+ if (XRE_IsParentProcess()) {
+ ReportTelemetry();
+ }
+
+ nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
+ if (obs) {
+ obs->NotifyObservers(nullptr, "gfx-features-ready", nullptr);
+ }
+}
+
+void gfxPlatform::ReportTelemetry() {
+ MOZ_RELEASE_ASSERT(XRE_IsParentProcess(),
+ "GFX: Only allowed to be called from parent process.");
+
+ nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
+
+ {
+ auto& screenManager = widget::ScreenManager::GetSingleton();
+ const uint32_t screenCount = screenManager.CurrentScreenList().Length();
+ RefPtr<widget::Screen> primaryScreen = screenManager.GetPrimaryScreen();
+ const LayoutDeviceIntRect rect = primaryScreen->GetRect();
+
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_DISPLAY_COUNT, screenCount);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_DISPLAY_PRIMARY_HEIGHT,
+ uint32_t(rect.Height()));
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_DISPLAY_PRIMARY_WIDTH,
+ uint32_t(rect.Width()));
+ }
+
+ nsString adapterDesc;
+ gfxInfo->GetAdapterDescription(adapterDesc);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DESCRIPTION,
+ adapterDesc);
+
+ nsString adapterVendorId;
+ gfxInfo->GetAdapterVendorID(adapterVendorId);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_VENDOR_ID,
+ adapterVendorId);
+
+ nsString adapterDeviceId;
+ gfxInfo->GetAdapterDeviceID(adapterDeviceId);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DEVICE_ID,
+ adapterDeviceId);
+
+ nsString adapterSubsystemId;
+ gfxInfo->GetAdapterSubsysID(adapterSubsystemId);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_SUBSYSTEM_ID,
+ adapterSubsystemId);
+
+ uint32_t adapterRam = 0;
+ gfxInfo->GetAdapterRAM(&adapterRam);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_RAM, adapterRam);
+
+ nsString adapterDriver;
+ gfxInfo->GetAdapterDriver(adapterDriver);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DRIVER_FILES,
+ adapterDriver);
+
+ nsString adapterDriverVendor;
+ gfxInfo->GetAdapterDriverVendor(adapterDriverVendor);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DRIVER_VENDOR,
+ adapterDriverVendor);
+
+ nsString adapterDriverVersion;
+ gfxInfo->GetAdapterDriverVersion(adapterDriverVersion);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DRIVER_VERSION,
+ adapterDriverVersion);
+
+ nsString adapterDriverDate;
+ gfxInfo->GetAdapterDriverDate(adapterDriverDate);
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DRIVER_DATE,
+ adapterDriverDate);
+
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_HEADLESS, IsHeadless());
+
+ MOZ_ASSERT(gPlatform, "Need gPlatform to generate some telemetry.");
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_SUPPORTS_HDR,
+ gPlatform->SupportsHDR());
+}
+
+static bool IsFeatureSupported(long aFeature, bool aDefault) {
+ nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
+ nsCString blockId;
+ int32_t status;
+ if (!NS_SUCCEEDED(gfxInfo->GetFeatureStatus(aFeature, blockId, &status))) {
+ return aDefault;
+ }
+ return status == nsIGfxInfo::FEATURE_STATUS_OK;
+}
+
+/* static*/
+bool gfxPlatform::IsDXInterop2Blocked() {
+ return !IsFeatureSupported(nsIGfxInfo::FEATURE_DX_INTEROP2, false);
+}
+
+/* static*/
+bool gfxPlatform::IsDXNV12Blocked() {
+ return !IsFeatureSupported(nsIGfxInfo::FEATURE_DX_NV12, false);
+}
+
+/* static*/
+bool gfxPlatform::IsDXP010Blocked() {
+ return !IsFeatureSupported(nsIGfxInfo::FEATURE_DX_P010, false);
+}
+
+/* static*/
+bool gfxPlatform::IsDXP016Blocked() {
+ return !IsFeatureSupported(nsIGfxInfo::FEATURE_DX_P016, false);
+}
+
+/* static */
+int32_t gfxPlatform::MaxTextureSize() {
+ // Make sure we don't completely break rendering because of a typo in the
+ // pref or whatnot.
+ const int32_t kMinSizePref = 2048;
+ return std::max(
+ kMinSizePref,
+ StaticPrefs::gfx_max_texture_size_AtStartup_DoNotUseDirectly());
+}
+
+/* static */
+int32_t gfxPlatform::MaxAllocSize() {
+ // Make sure we don't completely break rendering because of a typo in the
+ // pref or whatnot.
+ const int32_t kMinAllocPref = 10000000;
+ return std::max(kMinAllocPref,
+ StaticPrefs::gfx_max_alloc_size_AtStartup_DoNotUseDirectly());
+}
+
+/* static */
+void gfxPlatform::InitMoz2DLogging() {
+ auto fwd = new CrashStatsLogForwarder(
+ CrashReporter::Annotation::GraphicsCriticalError);
+ fwd->SetCircularBufferSize(StaticPrefs::gfx_logging_crash_length_AtStartup());
+
+ mozilla::gfx::Config cfg;
+ cfg.mLogForwarder = fwd;
+ cfg.mMaxTextureSize = gfxPlatform::MaxTextureSize();
+ cfg.mMaxAllocSize = gfxPlatform::MaxAllocSize();
+
+ gfx::Factory::Init(cfg);
+}
+
+/* static */
+bool gfxPlatform::IsHeadless() {
+ static bool initialized = false;
+ static bool headless = false;
+ if (!initialized) {
+ initialized = true;
+ headless = PR_GetEnv("MOZ_HEADLESS");
+ }
+ return headless;
+}
+
+/* static */
+bool gfxPlatform::UseRemoteCanvas() {
+ return XRE_IsContentProcess() && gfx::gfxVars::RemoteCanvasEnabled();
+}
+
+/* static */
+bool gfxPlatform::IsBackendAccelerated(
+ const mozilla::gfx::BackendType aBackendType) {
+ return aBackendType == BackendType::DIRECT2D ||
+ aBackendType == BackendType::DIRECT2D1_1;
+}
+
+/* static */
+bool gfxPlatform::CanMigrateMacGPUs() {
+ int32_t pMigration = StaticPrefs::gfx_compositor_gpu_migration();
+
+ bool forceDisable = pMigration == 0;
+ bool forceEnable = pMigration == 2;
+
+ return forceEnable || !forceDisable;
+}
+
+static bool sLayersIPCIsUp = false;
+
+/* static */
+void gfxPlatform::InitNullMetadata() {
+ ScrollMetadata::sNullMetadata = new ScrollMetadata();
+ ClearOnShutdown(&ScrollMetadata::sNullMetadata);
+}
+
+void gfxPlatform::Shutdown() {
+ // In some cases, gPlatform may not be created but Shutdown() called,
+ // e.g., during xpcshell tests.
+ 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();
+ gfxGradientCache::Shutdown();
+ gfxAlphaBoxBlur::ShutdownBlurCache();
+ gfxGraphiteShaper::Shutdown();
+ gfxPlatformFontList::Shutdown();
+ gfxFontMissingGlyphs::Shutdown();
+
+ // Free the various non-null transforms and loaded profiles
+ ShutdownCMS();
+
+ Preferences::UnregisterPrefixCallbacks(FontPrefChanged, kObservedPrefs);
+
+ NS_ASSERTION(gPlatform->mMemoryPressureObserver,
+ "mMemoryPressureObserver has already gone");
+ if (gPlatform->mMemoryPressureObserver) {
+ gPlatform->mMemoryPressureObserver->Unregister();
+ gPlatform->mMemoryPressureObserver = nullptr;
+ }
+
+ if (XRE_IsParentProcess()) {
+ if (gPlatform->mGlobalHardwareVsyncSource) {
+ gPlatform->mGlobalHardwareVsyncSource->Shutdown();
+ }
+ if (gPlatform->mSoftwareVsyncSource &&
+ gPlatform->mSoftwareVsyncSource !=
+ gPlatform->mGlobalHardwareVsyncSource) {
+ gPlatform->mSoftwareVsyncSource->Shutdown();
+ }
+ }
+
+ gPlatform->mGlobalHardwareVsyncSource = nullptr;
+ gPlatform->mSoftwareVsyncSource = nullptr;
+ gPlatform->mVsyncDispatcher = nullptr;
+
+ // 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
+
+ if (XRE_IsParentProcess()) {
+ GPUProcessManager::Shutdown();
+ VRProcessManager::Shutdown();
+ RDDProcessManager::Shutdown();
+ }
+
+ gfx::Factory::ShutDown();
+ gfxVars::Shutdown();
+ gfxFont::DestroySingletons();
+
+ gfxConfig::Shutdown();
+
+ gPlatform->WillShutdown();
+
+ delete gPlatform;
+ gPlatform = nullptr;
+}
+
+/* static */
+void gfxPlatform::InitLayersIPC() {
+ if (sLayersIPCIsUp) {
+ return;
+ }
+ sLayersIPCIsUp = true;
+
+ if (XRE_IsParentProcess()) {
+#if defined(XP_WIN)
+ if (gfxConfig::IsEnabled(gfx::Feature::WINDOW_OCCLUSION)) {
+ widget::WinWindowOcclusionTracker::Ensure();
+ }
+#endif
+ if (!gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
+ RemoteTextureMap::Init();
+ if (gfxVars::UseCanvasRenderThread()) {
+ gfx::CanvasRenderThread::Start();
+ }
+ wr::RenderThread::Start(GPUProcessManager::Get()->AllocateNamespace());
+ image::ImageMemoryReporter::InitForWebRender();
+ }
+
+ layers::CompositorThreadHolder::Start();
+ }
+}
+
+/* static */
+void gfxPlatform::ShutdownLayersIPC() {
+ if (!sLayersIPCIsUp) {
+ return;
+ }
+ sLayersIPCIsUp = false;
+
+ if (XRE_IsContentProcess()) {
+ gfx::VRManagerChild::ShutDown();
+ gfx::CanvasManagerChild::Shutdown();
+ // cf bug 1215265.
+ if (StaticPrefs::layers_child_process_shutdown()) {
+ layers::CompositorManagerChild::Shutdown();
+ layers::ImageBridgeChild::ShutDown();
+ }
+
+ } else if (XRE_IsParentProcess()) {
+ VideoBridgeParent::Shutdown();
+ RDDProcessManager::RDDProcessShutdown();
+ gfx::VRManagerChild::ShutDown();
+ gfx::CanvasManagerChild::Shutdown();
+ layers::CompositorManagerChild::Shutdown();
+ layers::ImageBridgeChild::ShutDown();
+ // This could be running on either the Compositor or the Renderer thread.
+ gfx::CanvasManagerParent::Shutdown();
+ // This has to happen after shutting down the child protocols.
+ layers::CompositorThreadHolder::Shutdown();
+ RemoteTextureMap::Shutdown();
+ image::ImageMemoryReporter::ShutdownForWebRender();
+ // There is a case that RenderThread exists when UseWebRender() is
+ // false. This could happen when WebRender was fallbacked to compositor.
+ if (wr::RenderThread::Get()) {
+ wr::RenderThread::ShutDown();
+
+ Preferences::UnregisterCallback(WebRenderDebugPrefChangeCallback,
+ WR_DEBUG_PREF);
+ Preferences::UnregisterCallback(WebRendeProfilerUIPrefChangeCallback,
+ "gfx.webrender.debug.profiler-ui");
+ Preferences::UnregisterCallback(
+ WebRenderBlobTileSizePrefChangeCallback,
+ nsDependentCString(
+ StaticPrefs::GetPrefName_gfx_webrender_blob_tile_size()));
+ }
+ if (gfx::CanvasRenderThread::Get()) {
+ gfx::CanvasRenderThread::ShutDown();
+ }
+#if defined(XP_WIN)
+ widget::WinWindowOcclusionTracker::ShutDown();
+#endif
+ } else {
+ // TODO: There are other kind of processes and we should make sure gfx
+ // stuff is either not created there or shut down properly.
+ }
+}
+
+void gfxPlatform::WillShutdown() {
+ // Destoy these first in case they depend on backend-specific resources.
+ // Otherwise, the backend's destructor would be called before the
+ // base gfxPlatform destructor.
+ mScreenReferenceSurface = nullptr;
+ mScreenReferenceDrawTarget = nullptr;
+
+ // Always clear out the Skia font cache here, in case it is referencing any
+ // SharedFTFaces that would otherwise outlive destruction of the FT_Library
+ // that owns them.
+ SkGraphics::PurgeFontCache();
+
+ // 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
+#ifdef NS_FREE_PERMANENT_DATA
+ cairo_debug_reset_static_data();
+#endif
+}
+
+gfxPlatform::~gfxPlatform() = default;
+
+/* static */
+already_AddRefed<DrawTarget> gfxPlatform::CreateDrawTargetForSurface(
+ gfxASurface* aSurface, const IntSize& aSize) {
+ SurfaceFormat format = aSurface->GetSurfaceFormat();
+ RefPtr<DrawTarget> drawTarget = Factory::CreateDrawTargetForCairoSurface(
+ aSurface->CairoSurface(), aSize, &format);
+ if (!drawTarget) {
+ gfxWarning() << "gfxPlatform::CreateDrawTargetForSurface failed in "
+ "CreateDrawTargetForCairoSurface";
+ return nullptr;
+ }
+ return drawTarget.forget();
+}
+
+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<SourceSurface> mSrcSurface;
+ BackendType mBackendType;
+};
+
+static void SourceBufferDestroy(void* srcSurfUD) {
+ delete static_cast<SourceSurfaceUserData*>(srcSurfUD);
+}
+
+UserDataKey kThebesSurface;
+
+struct DependentSourceSurfaceUserData {
+ RefPtr<gfxASurface> mSurface;
+};
+
+static void SourceSurfaceDestroyed(void* aData) {
+ delete static_cast<DependentSourceSurfaceUserData*>(aData);
+}
+
+void gfxPlatform::ClearSourceSurfaceForSurface(gfxASurface* aSurface) {
+ aSurface->SetData(&kSourceSurface, nullptr, nullptr);
+}
+
+/* static */
+already_AddRefed<SourceSurface> gfxPlatform::GetSourceSurfaceForSurface(
+ RefPtr<DrawTarget> aTarget, gfxASurface* aSurface, bool aIsPlugin) {
+ if (!aSurface->CairoSurface() || aSurface->CairoStatus()) {
+ return nullptr;
+ }
+
+ if (!aTarget) {
+ aTarget = gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget();
+ }
+
+ void* userData = aSurface->GetData(&kSourceSurface);
+
+ if (userData) {
+ SourceSurfaceUserData* surf = static_cast<SourceSurfaceUserData*>(userData);
+
+ if (surf->mSrcSurface->IsValid() &&
+ surf->mBackendType == aTarget->GetBackendType()) {
+ RefPtr<SourceSurface> 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).
+ //
+ // 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 Factory::CreateSourceSurfaceForCairoSurface(
+ aSurface->CairoSurface(), aSurface->GetSize(), format);
+ }
+
+ RefPtr<SourceSurface> 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<DataSourceSurface> surf = GetWrappedDataSourceSurface(aSurface);
+ if (surf) {
+ srcBuffer = aIsPlugin
+ ? aTarget->OptimizeSourceSurfaceForUnknownAlpha(surf)
+ : 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.
+ srcBuffer = Factory::CreateSourceSurfaceForCairoSurface(
+ aSurface->CairoSurface(), aSurface->GetSize(), format);
+ if (srcBuffer) {
+ srcBuffer = aTarget->OptimizeSourceSurface(srcBuffer);
+ }
+ }
+
+ if (!srcBuffer) {
+ return nullptr;
+ }
+
+ if ((srcBuffer->GetType() == SurfaceType::CAIRO &&
+ static_cast<SourceSurfaceCairo*>(srcBuffer.get())->GetSurface() ==
+ aSurface->CairoSurface()) ||
+ (srcBuffer->GetType() == SurfaceType::CAIRO_IMAGE &&
+ static_cast<DataSourceSurfaceCairo*>(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.
+ auto* srcSurfUD = new SourceSurfaceUserData;
+ srcSurfUD->mBackendType = aTarget->GetBackendType();
+ srcSurfUD->mSrcSurface = srcBuffer;
+ aSurface->SetData(&kSourceSurface, srcSurfUD, SourceBufferDestroy);
+
+ return srcBuffer.forget();
+}
+
+already_AddRefed<DataSourceSurface> gfxPlatform::GetWrappedDataSourceSurface(
+ gfxASurface* aSurface) {
+ RefPtr<gfxImageSurface> image = aSurface->GetAsImageSurface();
+ if (!image) {
+ return nullptr;
+ }
+ RefPtr<DataSourceSurface> 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.
+ auto* srcSurfUD = new DependentSourceSurfaceUserData;
+ srcSurfUD->mSurface = aSurface;
+ result->AddUserData(&kThebesSurface, srcSurfUD, SourceSurfaceDestroyed);
+
+ return result.forget();
+}
+
+void gfxPlatform::PopulateScreenInfo() {
+ nsCOMPtr<nsIScreenManager> manager =
+ do_GetService("@mozilla.org/gfx/screenmanager;1");
+ MOZ_ASSERT(manager, "failed to get nsIScreenManager");
+
+ nsCOMPtr<nsIScreen> screen;
+ manager->GetPrimaryScreen(getter_AddRefs(screen));
+ if (!screen) {
+ // This can happen in xpcshell, for instance
+ return;
+ }
+
+ screen->GetColorDepth(&mScreenDepth);
+ if (XRE_IsParentProcess()) {
+ gfxVars::SetScreenDepth(mScreenDepth);
+ }
+
+ int left, top;
+ screen->GetRect(&left, &top, &mScreenSize.width, &mScreenSize.height);
+}
+
+bool gfxPlatform::SupportsAzureContentForDrawTarget(DrawTarget* aTarget) {
+ if (!aTarget || !aTarget->IsValid()) {
+ return false;
+ }
+
+ return SupportsAzureContentForType(aTarget->GetBackendType());
+}
+
+void gfxPlatform::PurgeSkiaFontCache() {
+ if (gfxPlatform::GetPlatform()->GetDefaultContentBackend() ==
+ BackendType::SKIA) {
+ SkGraphics::PurgeFontCache();
+ }
+}
+
+already_AddRefed<DrawTarget> 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) {
+ RefPtr<gfxASurface> surf =
+ CreateOffscreenSurface(aSize, SurfaceFormatToImageFormat(aFormat));
+ if (!surf || surf->CairoStatus()) {
+ return nullptr;
+ }
+ return CreateDrawTargetForSurface(surf, aSize);
+ }
+ return Factory::CreateDrawTarget(aBackend, aSize, aFormat);
+}
+
+already_AddRefed<DrawTarget> gfxPlatform::CreateOffscreenCanvasDrawTarget(
+ const IntSize& aSize, SurfaceFormat aFormat) {
+ NS_ASSERTION(mPreferredCanvasBackend != BackendType::NONE, "No backend.");
+
+ // If we are using remote canvas we don't want to use acceleration in
+ // canvas DrawTargets we are not remoting, so we always use the fallback
+ // software one.
+ if (!gfxPlatform::UseRemoteCanvas() ||
+ !gfxPlatform::IsBackendAccelerated(mPreferredCanvasBackend)) {
+ RefPtr<DrawTarget> 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<DrawTarget> gfxPlatform::CreateOffscreenContentDrawTarget(
+ const IntSize& aSize, SurfaceFormat aFormat, bool aFallback) {
+ BackendType backend = (aFallback) ? mSoftwareBackend : mContentBackend;
+ NS_ASSERTION(backend != BackendType::NONE, "No backend.");
+ RefPtr<DrawTarget> dt = CreateDrawTargetForBackend(backend, aSize, aFormat);
+
+ if (!dt) {
+ return nullptr;
+ }
+
+ // We'd prefer this to take proper care and return a CaptureDT, but for the
+ // moment since we can't and this means we're going to be drawing on the main
+ // thread force it's initialization. See bug 1526045 and bug 1521368.
+ dt->ClearRect(gfx::Rect());
+ if (!dt->IsValid()) {
+ return nullptr;
+ }
+ return dt.forget();
+}
+
+already_AddRefed<DrawTarget> gfxPlatform::CreateSimilarSoftwareDrawTarget(
+ DrawTarget* aDT, const IntSize& aSize, SurfaceFormat aFormat) {
+ RefPtr<DrawTarget> dt;
+
+ if (Factory::DoesBackendSupportDataDrawtarget(aDT->GetBackendType())) {
+ dt = aDT->CreateSimilarDrawTarget(aSize, aFormat);
+ } else {
+ BackendType backendType = BackendType::SKIA;
+ dt = Factory::CreateDrawTarget(backendType, aSize, aFormat);
+ }
+
+ return dt.forget();
+}
+
+/* static */
+already_AddRefed<DrawTarget> gfxPlatform::CreateDrawTargetForData(
+ unsigned char* aData, const IntSize& aSize, int32_t aStride,
+ SurfaceFormat aFormat, bool aUninitialized) {
+ BackendType backendType = gfxVars::ContentBackend();
+ NS_ASSERTION(backendType != BackendType::NONE, "No backend.");
+
+ if (!Factory::DoesBackendSupportDataDrawtarget(backendType)) {
+ backendType = BackendType::SKIA;
+ }
+
+ RefPtr<DrawTarget> dt = Factory::CreateDrawTargetForData(
+ backendType, aData, aSize, aStride, aFormat, aUninitialized);
+
+ 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;
+ return BackendType::NONE;
+}
+
+nsresult gfxPlatform::GetFontList(nsAtom* aLangGroup,
+ const nsACString& aGenericFamily,
+ nsTArray<nsString>& aListOfFonts) {
+ gfxPlatformFontList::PlatformFontList()->GetFontList(
+ aLangGroup, aGenericFamily, aListOfFonts);
+ return NS_OK;
+}
+
+nsresult gfxPlatform::UpdateFontList(bool aFullRebuild) {
+ gfxPlatformFontList::PlatformFontList()->UpdateFontList(aFullRebuild);
+ return NS_OK;
+}
+
+void gfxPlatform::GetStandardFamilyName(const nsCString& aFontName,
+ nsACString& aFamilyName) {
+ gfxPlatformFontList::PlatformFontList()->GetStandardFamilyName(aFontName,
+ aFamilyName);
+}
+
+nsAutoCString gfxPlatform::GetDefaultFontName(
+ const nsACString& aLangGroup, const nsACString& aGenericFamily) {
+ // To benefit from Return Value Optimization, all paths here must return
+ // this one variable:
+ nsAutoCString result;
+
+ auto* pfl = gfxPlatformFontList::PlatformFontList();
+ FamilyAndGeneric fam = pfl->GetDefaultFontFamily(aLangGroup, aGenericFamily);
+ if (!pfl->GetLocalizedFamilyName(fam.mFamily, result)) {
+ NS_WARNING("missing default font-family name");
+ }
+
+ return result;
+}
+
+bool gfxPlatform::DownloadableFontsEnabled() {
+ if (mAllowDownloadableFonts == UNINITIALIZED_VALUE) {
+ mAllowDownloadableFonts =
+ Preferences::GetBool(GFX_DOWNLOADABLE_FONTS_ENABLED, false);
+ }
+
+ return mAllowDownloadableFonts;
+}
+
+bool gfxPlatform::UseCmapsDuringSystemFallback() {
+ return StaticPrefs::gfx_font_rendering_fallback_always_use_cmaps();
+}
+
+bool gfxPlatform::OpenTypeSVGEnabled() {
+ return StaticPrefs::gfx_font_rendering_opentype_svg_enabled();
+}
+
+uint32_t gfxPlatform::WordCacheCharLimit() {
+ return StaticPrefs::gfx_font_rendering_wordcache_charlimit();
+}
+
+uint32_t gfxPlatform::WordCacheMaxEntries() {
+ return StaticPrefs::gfx_font_rendering_wordcache_maxentries();
+}
+
+bool gfxPlatform::UseGraphiteShaping() {
+ return StaticPrefs::gfx_font_rendering_graphite_enabled();
+}
+
+bool gfxPlatform::IsFontFormatSupported(
+ StyleFontFaceSourceFormatKeyword aFormatHint,
+ StyleFontFaceSourceTechFlags aTechFlags) {
+ // By default, font resources are assumed to be supported; but if the format
+ // hint or technology flags explicitly indicate something we don't support,
+ // then return false.
+ switch (aFormatHint) {
+ case StyleFontFaceSourceFormatKeyword::None:
+ break;
+ case StyleFontFaceSourceFormatKeyword::Collection:
+ return false;
+ case StyleFontFaceSourceFormatKeyword::Opentype:
+ case StyleFontFaceSourceFormatKeyword::Truetype:
+ break;
+ case StyleFontFaceSourceFormatKeyword::EmbeddedOpentype:
+ return false;
+ case StyleFontFaceSourceFormatKeyword::Svg:
+ return false;
+ case StyleFontFaceSourceFormatKeyword::Woff:
+ break;
+ case StyleFontFaceSourceFormatKeyword::Woff2:
+ break;
+ case StyleFontFaceSourceFormatKeyword::Unknown:
+ return false;
+ default:
+ MOZ_ASSERT_UNREACHABLE("bad format hint!");
+ return false;
+ }
+ StyleFontFaceSourceTechFlags unsupportedTechnologies =
+ StyleFontFaceSourceTechFlags::INCREMENTAL |
+ StyleFontFaceSourceTechFlags::COLOR_SBIX;
+ if (!StaticPrefs::gfx_downloadable_fonts_keep_color_bitmaps()) {
+ unsupportedTechnologies |= StyleFontFaceSourceTechFlags::COLOR_CBDT;
+ }
+ if (!StaticPrefs::gfx_font_rendering_colr_v1_enabled()) {
+ unsupportedTechnologies |= StyleFontFaceSourceTechFlags::COLOR_COLRV1;
+ }
+ if (!StaticPrefs::layout_css_font_palette_enabled()) {
+ unsupportedTechnologies |= StyleFontFaceSourceTechFlags::PALETTES;
+ }
+ if (!StaticPrefs::layout_css_font_variations_enabled()) {
+ unsupportedTechnologies |= StyleFontFaceSourceTechFlags::VARIATIONS;
+ }
+ if (aTechFlags & unsupportedTechnologies) {
+ return false;
+ }
+ return true;
+}
+
+bool gfxPlatform::IsKnownIconFontFamily(const nsAtom* aFamilyName) const {
+ return gfxPlatformFontList::PlatformFontList()->IsKnownIconFontFamily(
+ aFamilyName);
+}
+
+gfxFontEntry* gfxPlatform::LookupLocalFont(nsPresContext* aPresContext,
+ const nsACString& aFontName,
+ WeightRange aWeightForEntry,
+ StretchRange aStretchForEntry,
+ SlantStyleRange aStyleForEntry) {
+ return gfxPlatformFontList::PlatformFontList()->LookupLocalFont(
+ aPresContext, aFontName, aWeightForEntry, aStretchForEntry,
+ aStyleForEntry);
+}
+
+gfxFontEntry* gfxPlatform::MakePlatformFont(const nsACString& aFontName,
+ WeightRange aWeightForEntry,
+ StretchRange aStretchForEntry,
+ SlantStyleRange aStyleForEntry,
+ const uint8_t* aFontData,
+ uint32_t aLength) {
+ return gfxPlatformFontList::PlatformFontList()->MakePlatformFont(
+ aFontName, aWeightForEntry, aStretchForEntry, aStyleForEntry, aFontData,
+ aLength);
+}
+
+BackendPrefsData gfxPlatform::GetBackendPrefs() const {
+ BackendPrefsData data;
+
+ data.mCanvasBitmask = BackendTypeBit(BackendType::SKIA);
+ data.mContentBitmask = BackendTypeBit(BackendType::SKIA);
+
+#ifdef MOZ_WIDGET_GTK
+ data.mCanvasBitmask |= BackendTypeBit(BackendType::CAIRO);
+ data.mContentBitmask |= BackendTypeBit(BackendType::CAIRO);
+#endif
+
+ data.mCanvasDefault = BackendType::SKIA;
+ data.mContentDefault = BackendType::SKIA;
+
+ return data;
+}
+
+void gfxPlatform::InitBackendPrefs(BackendPrefsData&& aPrefsData) {
+ mPreferredCanvasBackend = GetCanvasBackendPref(aPrefsData.mCanvasBitmask);
+ if (mPreferredCanvasBackend == BackendType::NONE) {
+ mPreferredCanvasBackend = aPrefsData.mCanvasDefault;
+ }
+
+ 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(
+ aPrefsData.mCanvasBitmask & ~(BackendTypeBit(mPreferredCanvasBackend) |
+ BackendTypeBit(BackendType::DIRECT2D)));
+ } else {
+ mFallbackCanvasBackend = GetCanvasBackendPref(
+ aPrefsData.mCanvasBitmask & ~BackendTypeBit(mPreferredCanvasBackend));
+ }
+
+ mContentBackendBitmask = aPrefsData.mContentBitmask;
+ mContentBackend = GetContentBackendPref(mContentBackendBitmask);
+ if (mContentBackend == BackendType::NONE) {
+ mContentBackend = aPrefsData.mContentDefault;
+ // 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(aPrefsData.mContentDefault);
+ }
+
+ uint32_t swBackendBits = BackendTypeBit(BackendType::SKIA);
+#ifdef MOZ_WIDGET_GTK
+ swBackendBits |= BackendTypeBit(BackendType::CAIRO);
+#endif
+ mSoftwareBackend = GetContentBackendPref(swBackendBits);
+ if (mSoftwareBackend == BackendType::NONE) {
+ mSoftwareBackend = BackendType::SKIA;
+ }
+
+ // If we don't have a fallback canvas backend then use the same software
+ // fallback as content.
+ if (mFallbackCanvasBackend == BackendType::NONE) {
+ mFallbackCanvasBackend = mSoftwareBackend;
+ }
+
+ if (XRE_IsParentProcess()) {
+ gfxVars::SetContentBackend(mContentBackend);
+ gfxVars::SetSoftwareBackend(mSoftwareBackend);
+ }
+}
+
+/* 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<nsCString> backendList;
+ nsAutoCString 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<nsIXULRuntime> xr = do_GetService("@mozilla.org/xre/runtime;1");
+ if (xr) {
+ xr->GetInSafeMode(&sInSafeMode);
+ }
+ }
+ return sInSafeMode;
+}
+
+bool gfxPlatform::OffMainThreadCompositingEnabled() {
+ return UsesOffMainThreadCompositing();
+}
+
+void gfxPlatform::SetCMSModeOverride(CMSMode aMode) {
+ MOZ_ASSERT(gCMSInitialized);
+ gCMSMode = aMode;
+}
+
+int gfxPlatform::GetRenderingIntent() {
+ // StaticPrefList.yaml 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 = StaticPrefs::gfx_color_management_rendering_intent();
+ if ((pIntent < QCMS_INTENT_MIN) || (pIntent > QCMS_INTENT_MAX)) {
+ /* If the pref is out of range, use embedded profile. */
+ pIntent = -1;
+ }
+ return pIntent;
+}
+
+DeviceColor gfxPlatform::TransformPixel(const sRGBColor& in,
+ 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);
+ auto out = DeviceColor::FromABGR(packed);
+#else
+ /* ARGB puts the bytes in |ARGB| order on big endian */
+ uint32_t packed = in.UnusualToARGB();
+ /* add one to move past the alpha byte */
+ qcms_transform_data(transform, (uint8_t*)&packed + 1, (uint8_t*)&packed + 1,
+ 1);
+ auto out = DeviceColor::UnusualFromARGB(packed);
+#endif
+ out.a = in.a;
+ return out;
+ }
+ return DeviceColor(in.r, in.g, in.b, in.a);
+}
+
+nsTArray<uint8_t> gfxPlatform::GetPrefCMSOutputProfileData() {
+ const auto mirror = StaticPrefs::gfx_color_management_display_profile();
+ const auto fname = *mirror;
+ if (fname == "") {
+ return nsTArray<uint8_t>();
+ }
+
+ void* mem = nullptr;
+ size_t size = 0;
+ qcms_data_from_path(fname.get(), &mem, &size);
+
+ nsTArray<uint8_t> result;
+
+ if (mem) {
+ result.AppendElements(static_cast<uint8_t*>(mem), size);
+ free(mem);
+ }
+
+ return result;
+}
+
+const mozilla::gfx::ContentDeviceData* gfxPlatform::GetInitContentDeviceData() {
+ return gContentDeviceInitData;
+}
+
+CMSMode GfxColorManagementMode() {
+ const auto mode = StaticPrefs::gfx_color_management_mode();
+ if (mode >= 0 && mode < UnderlyingValue(CMSMode::AllCount)) {
+ return CMSMode(mode);
+ }
+ return CMSMode::Off;
+}
+
+void gfxPlatform::InitializeCMS() {
+ if (gCMSInitialized) {
+ return;
+ }
+
+ if (XRE_IsGPUProcess()) {
+ // Colors in the GPU process should already be managed, so we don't need to
+ // perform color management there.
+ gCMSInitialized = true;
+ return;
+ }
+
+ MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread(),
+ "CMS should be initialized on the main thread");
+ if (MOZ_UNLIKELY(!NS_IsMainThread())) {
+ return;
+ }
+
+ gCMSMode = GfxColorManagementMode();
+
+ gCMSsRGBProfile = qcms_profile_sRGB();
+
+ /* 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 (StaticPrefs::gfx_color_management_force_srgb() ||
+ StaticPrefs::gfx_color_management_native_srgb()) {
+ gCMSOutputProfile = gCMSsRGBProfile;
+ }
+
+ if (!gCMSOutputProfile) {
+ nsTArray<uint8_t> outputProfileData =
+ gfxPlatform::GetPlatform()->GetPlatformCMSOutputProfileData();
+ if (!outputProfileData.IsEmpty()) {
+ gCMSOutputProfile = qcms_profile_from_memory_curves_only(
+ outputProfileData.Elements(), outputProfileData.Length());
+ }
+ }
+
+ /* 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 != gCMSsRGBProfile,
+ "Builtin sRGB profile tagged as bogus!!!");
+ qcms_profile_release(gCMSOutputProfile);
+ gCMSOutputProfile = nullptr;
+ }
+
+ if (!gCMSOutputProfile) {
+ gCMSOutputProfile = gCMSsRGBProfile;
+ }
+
+ /* Precache the LUT16 Interpolations for the output profile. See
+ bug 444661 for details. */
+ qcms_profile_precache_output_transform(gCMSOutputProfile);
+
+ // Create the RGB transform.
+ gCMSRGBTransform =
+ qcms_transform_create(gCMSsRGBProfile, QCMS_DATA_RGB_8, gCMSOutputProfile,
+ QCMS_DATA_RGB_8, QCMS_INTENT_PERCEPTUAL);
+
+ // And the inverse.
+ gCMSInverseRGBTransform =
+ qcms_transform_create(gCMSOutputProfile, QCMS_DATA_RGB_8, gCMSsRGBProfile,
+ QCMS_DATA_RGB_8, QCMS_INTENT_PERCEPTUAL);
+
+ // The RGBA transform.
+ gCMSRGBATransform = qcms_transform_create(gCMSsRGBProfile, QCMS_DATA_RGBA_8,
+ gCMSOutputProfile, QCMS_DATA_RGBA_8,
+ QCMS_INTENT_PERCEPTUAL);
+
+ // And the BGRA one.
+ gCMSBGRATransform = qcms_transform_create(gCMSsRGBProfile, QCMS_DATA_BGRA_8,
+ gCMSOutputProfile, QCMS_DATA_BGRA_8,
+ QCMS_INTENT_PERCEPTUAL);
+
+ // FIXME: We only enable iccv4 after we create the platform profile, to
+ // wallpaper over bug 1697787.
+ //
+ // This should happen ideally right after setting gCMSMode.
+ if (StaticPrefs::gfx_color_management_enablev4()) {
+ qcms_enable_iccv4();
+ }
+
+ gCMSInitialized = true;
+}
+
+qcms_transform* gfxPlatform::GetCMSOSRGBATransform() {
+ switch (SurfaceFormat::OS_RGBA) {
+ case SurfaceFormat::B8G8R8A8:
+ return GetCMSBGRATransform();
+ case SurfaceFormat::R8G8B8A8:
+ return GetCMSRGBATransform();
+ default:
+ // We do not support color management with big endian.
+ return nullptr;
+ }
+}
+
+qcms_data_type gfxPlatform::GetCMSOSRGBAType() {
+ switch (SurfaceFormat::OS_RGBA) {
+ case SurfaceFormat::B8G8R8A8:
+ return QCMS_DATA_BGRA_8;
+ case SurfaceFormat::R8G8B8A8:
+ return QCMS_DATA_RGBA_8;
+ default:
+ // We do not support color management with big endian.
+ return QCMS_DATA_RGBA_8;
+ }
+}
+
+/* Shuts down various transforms and profiles for CMS. */
+void gfxPlatform::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 (gCMSBGRATransform) {
+ qcms_transform_release(gCMSBGRATransform);
+ gCMSBGRATransform = 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 = CMSMode::Off;
+ gCMSInitialized = false;
+}
+
+uint32_t gfxPlatform::GetBidiNumeralOption() {
+ return StaticPrefs::bidi_numeral();
+}
+
+/* static */
+void gfxPlatform::FlushFontAndWordCaches() {
+ gfxFontCache* fontCache = gfxFontCache::GetCache();
+ if (fontCache) {
+ fontCache->Flush();
+ }
+
+ gfxPlatform::PurgeSkiaFontCache();
+}
+
+/* static */
+void gfxPlatform::ForceGlobalReflow(NeedsReframe aNeedsReframe,
+ BroadcastToChildren aBroadcastToChildren) {
+ MOZ_ASSERT(NS_IsMainThread());
+ const bool reframe = aNeedsReframe == NeedsReframe::Yes;
+ // Send a notification that will be observed by PresShells in this process
+ // only.
+ if (nsCOMPtr<nsIObserverService> obs = services::GetObserverService()) {
+ char16_t needsReframe[] = {char16_t(reframe), 0};
+ obs->NotifyObservers(nullptr, "font-info-updated", needsReframe);
+ }
+ if (XRE_IsParentProcess() &&
+ aBroadcastToChildren == BroadcastToChildren::Yes) {
+ // Propagate the change to child processes.
+ for (auto* process :
+ dom::ContentParent::AllProcesses(dom::ContentParent::eLive)) {
+ Unused << process->SendForceGlobalReflow(reframe);
+ }
+ }
+}
+
+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_WORD_CACHE_CHARLIMIT, aPref) ||
+ !strcmp(GFX_PREF_WORD_CACHE_MAXENTRIES, aPref) ||
+ !strcmp(GFX_PREF_GRAPHITE_SHAPING, aPref)) {
+ FlushFontAndWordCaches();
+ } else if (
+#if defined(XP_MACOSX)
+ !strcmp(GFX_PREF_CORETEXT_SHAPING, aPref) ||
+#endif
+ !strcmp("gfx.font_rendering.ahem_antialias_none", aPref)) {
+ FlushFontAndWordCaches();
+ } else if (!strcmp(GFX_PREF_OPENTYPE_SVG, aPref)) {
+ gfxFontCache::GetCache()->Flush();
+ gfxFontCache::GetCache()->NotifyGlyphsChanged();
+ }
+}
+
+mozilla::LogModule* gfxPlatform::GetLog(eGfxLog aWhichLog) {
+ // logs shared across gfx
+ static LazyLogModule sFontlistLog("fontlist");
+ static LazyLogModule sFontInitLog("fontinit");
+ static LazyLogModule sTextrunLog("textrun");
+ static LazyLogModule sTextrunuiLog("textrunui");
+ static LazyLogModule sCmapDataLog("cmapdata");
+ static LazyLogModule sTextPerfLog("textperf");
+
+ switch (aWhichLog) {
+ case eGfxLog_fontlist:
+ return sFontlistLog;
+ case eGfxLog_fontinit:
+ return sFontInitLog;
+ case eGfxLog_textrun:
+ return sTextrunLog;
+ case eGfxLog_textrunui:
+ return sTextrunuiLog;
+ case eGfxLog_cmapdata:
+ return sCmapDataLog;
+ case eGfxLog_textperf:
+ return sTextPerfLog;
+ }
+
+ MOZ_ASSERT_UNREACHABLE("Unexpected log type");
+ return nullptr;
+}
+
+RefPtr<mozilla::gfx::DrawTarget> gfxPlatform::ScreenReferenceDrawTarget() {
+ MOZ_ASSERT_IF(XRE_IsContentProcess(), NS_IsMainThread());
+ return (mScreenReferenceDrawTarget)
+ ? mScreenReferenceDrawTarget
+ : gPlatform->CreateOffscreenContentDrawTarget(
+ IntSize(1, 1), SurfaceFormat::B8G8R8A8, true);
+}
+
+/* static */ RefPtr<mozilla::gfx::DrawTarget>
+gfxPlatform::ThreadLocalScreenReferenceDrawTarget() {
+ if (NS_IsMainThread() && gPlatform) {
+ return gPlatform->ScreenReferenceDrawTarget();
+ }
+
+ gfxPlatformWorker* platformWorker = gfxPlatformWorker::Get();
+ if (platformWorker) {
+ return platformWorker->ScreenReferenceDrawTarget();
+ }
+
+ return Factory::CreateDrawTarget(BackendType::SKIA, IntSize(1, 1),
+ SurfaceFormat::B8G8R8A8);
+}
+
+mozilla::gfx::SurfaceFormat gfxPlatform::Optimal2DFormatForContent(
+ gfxContentType aContent) {
+ switch (aContent) {
+ case gfxContentType::COLOR:
+ switch (GetOffscreenFormat()) {
+ case SurfaceFormat::A8R8G8B8_UINT32:
+ return mozilla::gfx::SurfaceFormat::B8G8R8A8;
+ case SurfaceFormat::X8R8G8B8_UINT32:
+ return mozilla::gfx::SurfaceFormat::B8G8R8X8;
+ case SurfaceFormat::R5G6B5_UINT16:
+ return mozilla::gfx::SurfaceFormat::R5G6B5_UINT16;
+ default:
+ MOZ_ASSERT_UNREACHABLE(
+ "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:
+ MOZ_ASSERT_UNREACHABLE("unknown gfxContentType");
+ return mozilla::gfx::SurfaceFormat::B8G8R8A8;
+ }
+}
+
+gfxImageFormat gfxPlatform::OptimalFormatForContent(gfxContentType aContent) {
+ switch (aContent) {
+ case gfxContentType::COLOR:
+ return GetOffscreenFormat();
+ case gfxContentType::ALPHA:
+ return SurfaceFormat::A8;
+ case gfxContentType::COLOR_ALPHA:
+ return SurfaceFormat::A8R8G8B8_UINT32;
+ default:
+ MOZ_ASSERT_UNREACHABLE("unknown gfxContentType");
+ return SurfaceFormat::A8R8G8B8_UINT32;
+ }
+}
+
+/**
+ * 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 mozilla::Atomic<bool> sLayersSupportsHardwareVideoDecoding(false);
+static bool sLayersHardwareVideoDecodingFailed = false;
+
+static mozilla::Atomic<bool> sLayersAccelerationPrefsInitialized(false);
+
+static void VideoDecodingFailedChangedCallback(const char* aPref, void*) {
+ sLayersHardwareVideoDecodingFailed = Preferences::GetBool(aPref, false);
+ gfxPlatform::GetPlatform()->UpdateCanUseHardwareVideoDecoding();
+}
+
+void gfxPlatform::UpdateCanUseHardwareVideoDecoding() {
+ if (XRE_IsParentProcess()) {
+ gfxVars::SetCanUseHardwareVideoDecoding(CanUseHardwareVideoDecoding());
+ }
+}
+
+void gfxPlatform::UpdateForceSubpixelAAWherePossible() {
+ bool forceSubpixelAAWherePossible =
+ StaticPrefs::gfx_webrender_quality_force_subpixel_aa_where_possible();
+ gfxVars::SetForceSubpixelAAWherePossible(forceSubpixelAAWherePossible);
+}
+
+void gfxPlatform::InitAcceleration() {
+ if (sLayersAccelerationPrefsInitialized) {
+ return;
+ }
+
+ InitCompositorAccelerationPrefs();
+
+ // 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");
+
+#ifndef MOZ_WIDGET_GTK
+ nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
+ nsCString discardFailureId;
+ int32_t status;
+#endif
+
+ if (XRE_IsParentProcess()) {
+ gfxVars::SetBrowserTabsRemoteAutostart(BrowserTabsRemoteAutostart());
+ gfxVars::SetOffscreenFormat(GetOffscreenFormat());
+ gfxVars::SetRequiresAcceleratedGLContextForCompositorOGL(
+ RequiresAcceleratedGLContextForCompositorOGL());
+#ifdef XP_WIN
+ if (NS_SUCCEEDED(
+ gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_D3D11_KEYED_MUTEX,
+ discardFailureId, &status))) {
+ gfxVars::SetAllowD3D11KeyedMutex(status == nsIGfxInfo::FEATURE_STATUS_OK);
+ } else {
+ // If we couldn't properly evaluate the status, err on the side
+ // of caution and give this functionality to the user.
+ gfxCriticalNote << "Cannot evaluate keyed mutex feature status";
+ gfxVars::SetAllowD3D11KeyedMutex(true);
+ }
+ if (StaticPrefs::gfx_direct3d11_use_double_buffering() &&
+ IsWin10OrLater()) {
+ gfxVars::SetUseDoubleBufferingWithCompositor(true);
+ }
+#endif
+ }
+
+ if (StaticPrefs::media_hardware_video_decoding_enabled_AtStartup()) {
+#ifdef MOZ_WIDGET_GTK
+ sLayersSupportsHardwareVideoDecoding =
+ gfxPlatformGtk::GetPlatform()->InitVAAPIConfig(
+ StaticPrefs::
+ media_hardware_video_decoding_force_enabled_AtStartup() ||
+ StaticPrefs::media_ffmpeg_vaapi_enabled_AtStartup());
+#else
+ if (
+# ifdef XP_WIN
+ Preferences::GetBool("media.wmf.dxva.enabled", true) &&
+# endif
+ NS_SUCCEEDED(gfxInfo->GetFeatureStatus(
+ nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING, discardFailureId,
+ &status))) {
+ if (status == nsIGfxInfo::FEATURE_STATUS_OK ||
+ StaticPrefs::
+ media_hardware_video_decoding_force_enabled_AtStartup()) {
+ sLayersSupportsHardwareVideoDecoding = true;
+ }
+ }
+#endif
+ } else if (XRE_IsParentProcess()) {
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::HARDWARE_VIDEO_DECODING);
+ feature.EnableByDefault();
+ feature.UserDisable("User disabled via pref",
+ "FEATURE_HARDWARE_VIDEO_DECODING_PREF_DISABLED"_ns);
+ }
+
+ sLayersAccelerationPrefsInitialized = true;
+
+ if (XRE_IsParentProcess()) {
+ Preferences::RegisterCallbackAndCall(
+ VideoDecodingFailedChangedCallback,
+ "media.hardware-video-decoding.failed");
+ InitGPUProcessPrefs();
+
+ gfxVars::SetRemoteCanvasEnabled(StaticPrefs::gfx_canvas_remote() &&
+ gfxConfig::IsEnabled(Feature::GPU_PROCESS));
+ }
+}
+
+void gfxPlatform::InitGPUProcessPrefs() {
+ // We want to hide this from about:support, so only set a default if the
+ // pref is known to be true.
+ if (!StaticPrefs::layers_gpu_process_enabled_AtStartup() &&
+ !StaticPrefs::layers_gpu_process_force_enabled_AtStartup()) {
+ return;
+ }
+
+ FeatureState& gpuProc = gfxConfig::GetFeature(Feature::GPU_PROCESS);
+
+ // We require E10S - otherwise, there is very little benefit to the GPU
+ // process, since the UI process must still use acceleration for
+ // performance.
+ if (!BrowserTabsRemoteAutostart()) {
+ gpuProc.DisableByDefault(FeatureStatus::Unavailable,
+ "Multi-process mode is not enabled",
+ "FEATURE_FAILURE_NO_E10S"_ns);
+ } else {
+ gpuProc.SetDefaultFromPref(
+ StaticPrefs::GetPrefName_layers_gpu_process_enabled(), true,
+ StaticPrefs::GetPrefDefault_layers_gpu_process_enabled());
+ }
+
+ if (StaticPrefs::layers_gpu_process_force_enabled_AtStartup()) {
+ gpuProc.UserForceEnable("User force-enabled via pref");
+ }
+
+ nsCString message;
+ nsCString failureId;
+ if (!gfxPlatform::IsGfxInfoStatusOkay(nsIGfxInfo::FEATURE_GPU_PROCESS,
+ &message, failureId)) {
+ gpuProc.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ return;
+ }
+
+ if (IsHeadless()) {
+ gpuProc.ForceDisable(FeatureStatus::Blocked, "Headless mode is enabled",
+ "FEATURE_FAILURE_HEADLESS_MODE"_ns);
+ return;
+ }
+ if (InSafeMode()) {
+ gpuProc.ForceDisable(FeatureStatus::Blocked, "Safe-mode is enabled",
+ "FEATURE_FAILURE_SAFE_MODE"_ns);
+ return;
+ }
+
+ InitPlatformGPUProcessPrefs();
+}
+
+void gfxPlatform::InitCompositorAccelerationPrefs() {
+ const char* acceleratedEnv = PR_GetEnv("MOZ_ACCELERATED");
+
+ FeatureState& feature = gfxConfig::GetFeature(Feature::HW_COMPOSITING);
+
+ // Base value - does the platform allow acceleration?
+ if (feature.SetDefault(AccelerateLayersByDefault(), FeatureStatus::Blocked,
+ "Acceleration blocked by platform")) {
+ if (StaticPrefs::
+ layers_acceleration_disabled_AtStartup_DoNotUseDirectly()) {
+ feature.UserDisable("Disabled by layers.acceleration.disabled=true",
+ "FEATURE_FAILURE_COMP_PREF"_ns);
+ } else if (acceleratedEnv && *acceleratedEnv == '0') {
+ feature.UserDisable("Disabled by envvar", "FEATURE_FAILURE_COMP_ENV"_ns);
+ }
+ } else {
+ if (acceleratedEnv && *acceleratedEnv == '1') {
+ feature.UserEnable("Enabled by envvar");
+ }
+ }
+
+ // This has specific meaning elsewhere, so we always record it.
+ if (StaticPrefs::
+ layers_acceleration_force_enabled_AtStartup_DoNotUseDirectly()) {
+ feature.UserForceEnable("Force-enabled by pref");
+ }
+
+ // Safe, headless, and record/replay modes override everything.
+ if (InSafeMode()) {
+ feature.ForceDisable(FeatureStatus::Blocked,
+ "Acceleration blocked by safe-mode",
+ "FEATURE_FAILURE_COMP_SAFEMODE"_ns);
+ }
+ if (IsHeadless()) {
+ feature.ForceDisable(FeatureStatus::Blocked,
+ "Acceleration blocked by headless mode",
+ "FEATURE_FAILURE_COMP_HEADLESSMODE"_ns);
+ }
+}
+
+/*static*/
+bool gfxPlatform::WebRenderPrefEnabled() {
+ return StaticPrefs::gfx_webrender_all_AtStartup() ||
+ StaticPrefs::gfx_webrender_enabled_AtStartup_DoNotUseDirectly();
+}
+
+/*static*/
+bool gfxPlatform::WebRenderEnvvarEnabled() {
+ const char* env = PR_GetEnv("MOZ_WEBRENDER");
+ return (env && *env == '1');
+}
+
+/* static */ const char* gfxPlatform::WebRenderResourcePathOverride() {
+ const char* resourcePath = PR_GetEnv("WR_RESOURCE_PATH");
+ if (!resourcePath || resourcePath[0] == '\0') {
+ return nullptr;
+ }
+ return resourcePath;
+}
+
+void gfxPlatform::InitWebRenderConfig() {
+ bool prefEnabled = WebRenderPrefEnabled();
+ bool envvarEnabled = WebRenderEnvvarEnabled();
+
+ // WR? WR+ => means WR was enabled via gfx.webrender.all.qualified on
+ // qualified hardware
+ // WR! WR+ => means WR was enabled via gfx.webrender.{all,enabled} or
+ // envvar, possibly on unqualified hardware
+ // In all cases WR- means WR was not enabled, for one of many possible
+ // reasons. Prior to bug 1523788 landing the gfx.webrender.{all,enabled}
+ // prefs only worked on Nightly so keep that in mind when looking at older
+ // crash reports.
+ ScopedGfxFeatureReporter reporter("WR", prefEnabled || envvarEnabled);
+ if (!XRE_IsParentProcess()) {
+ // The parent process runs through all the real decision-making code
+ // later in this function. For other processes we still want to report
+ // the state of the feature for crash reports.
+ reporter.SetSuccessful();
+ return;
+ }
+
+ // Update the gfxConfig feature states.
+ gfxConfigManager manager;
+ manager.Init();
+ manager.ConfigureWebRender();
+
+ bool hasHardware = gfxConfig::IsEnabled(Feature::WEBRENDER);
+
+#ifdef MOZ_WIDGET_GTK
+ // We require a hardware driver to back the GL context unless the user forced
+ // on WebRender.
+ if (!gfxConfig::IsForcedOnByUser(Feature::WEBRENDER) &&
+ StaticPrefs::gfx_webrender_reject_software_driver_AtStartup()) {
+ gfxVars::SetWebRenderRequiresHardwareDriver(true);
+ }
+#endif
+
+#ifdef XP_WIN
+ if (gfxConfig::IsEnabled(Feature::WEBRENDER_ANGLE)) {
+ gfxVars::SetUseWebRenderANGLE(true);
+ }
+#endif
+
+ if (gfxConfig::IsEnabled(Feature::WEBRENDER_SHADER_CACHE)) {
+ gfxVars::SetUseWebRenderProgramBinaryDisk(true);
+ }
+
+ gfxVars::SetUseWebRenderOptimizedShaders(
+ gfxConfig::IsEnabled(Feature::WEBRENDER_OPTIMIZED_SHADERS));
+
+ gfxVars::SetUseSoftwareWebRender(!hasHardware);
+
+ Preferences::RegisterPrefixCallbackAndCall(SwapIntervalPrefChangeCallback,
+ "gfx.swap-interval");
+
+ reporter.SetSuccessful();
+
+ Preferences::RegisterPrefixCallbackAndCall(WebRenderDebugPrefChangeCallback,
+ WR_DEBUG_PREF);
+
+ RegisterWebRenderBoolParamCallback();
+
+ Preferences::RegisterPrefixCallbackAndCall(
+ WebRendeProfilerUIPrefChangeCallback, "gfx.webrender.debug.profiler-ui");
+ Preferences::RegisterCallback(
+ WebRenderQualityPrefChangeCallback,
+ nsDependentCString(
+ StaticPrefs::
+ GetPrefName_gfx_webrender_quality_force_subpixel_aa_where_possible()));
+
+ Preferences::RegisterCallback(
+ WebRenderBatchingPrefChangeCallback,
+ nsDependentCString(
+ StaticPrefs::GetPrefName_gfx_webrender_batching_lookback()));
+
+ Preferences::RegisterCallbackAndCall(
+ WebRenderBlobTileSizePrefChangeCallback,
+ nsDependentCString(
+ StaticPrefs::GetPrefName_gfx_webrender_blob_tile_size()));
+
+ Preferences::RegisterCallbackAndCall(
+ WebRenderUploadThresholdPrefChangeCallback,
+ nsDependentCString(
+ StaticPrefs::GetPrefName_gfx_webrender_batched_upload_threshold()));
+
+ if (WebRenderResourcePathOverride()) {
+ CrashReporter::AnnotateCrashReport(
+ CrashReporter::Annotation::IsWebRenderResourcePathOverridden, true);
+ }
+
+ UpdateForceSubpixelAAWherePossible();
+
+#ifdef XP_WIN
+ if (gfxConfig::IsEnabled(Feature::WEBRENDER_DCOMP_PRESENT)) {
+ gfxVars::SetUseWebRenderDCompWin(true);
+ }
+ if (StaticPrefs::gfx_webrender_software_d3d11_AtStartup()) {
+ gfxVars::SetAllowSoftwareWebRenderD3D11(true);
+ }
+
+ const bool overlaySupported =
+ IsWin10AnniversaryUpdateOrLater() &&
+ gfxConfig::IsEnabled(Feature::WEBRENDER_COMPOSITOR);
+ MOZ_ASSERT_IF(overlaySupported,
+ gfxConfig::IsEnabled(Feature::WEBRENDER_DCOMP_PRESENT));
+
+ bool useVideoOverlay = false;
+ if (StaticPrefs::gfx_webrender_dcomp_video_overlay_win_AtStartup()) {
+ if (overlaySupported) {
+ useVideoOverlay = true;
+ }
+
+ if (useVideoOverlay &&
+ !StaticPrefs::
+ gfx_webrender_dcomp_video_overlay_win_force_enabled_AtStartup()) {
+ nsCString failureId;
+ int32_t status;
+ const nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
+ if (NS_FAILED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_VIDEO_OVERLAY,
+ failureId, &status))) {
+ FeatureState& feature = gfxConfig::GetFeature(Feature::VIDEO_OVERLAY);
+ feature.DisableByDefault(FeatureStatus::BlockedNoGfxInfo,
+ "gfxInfo is broken",
+ "FEATURE_FAILURE_WR_NO_GFX_INFO"_ns);
+ useVideoOverlay = false;
+ } else {
+ if (status != nsIGfxInfo::FEATURE_ALLOW_ALWAYS) {
+ FeatureState& feature = gfxConfig::GetFeature(Feature::VIDEO_OVERLAY);
+ feature.DisableByDefault(FeatureStatus::Blocked,
+ "Blocklisted by gfxInfo", failureId);
+ useVideoOverlay = false;
+ }
+ }
+ }
+ } else if (overlaySupported) {
+ FeatureState& feature = gfxConfig::GetFeature(Feature::VIDEO_OVERLAY);
+ feature.DisableByDefault(FeatureStatus::Blocked, "Disabled by pref",
+ "FEATURE_FAILURE_DISABLED_BY_PREF"_ns);
+ }
+
+ if (useVideoOverlay) {
+ FeatureState& feature = gfxConfig::GetFeature(Feature::VIDEO_OVERLAY);
+ feature.EnableByDefault();
+ gfxVars::SetUseWebRenderDCompVideoOverlayWin(true);
+ }
+
+ if (useVideoOverlay &&
+ StaticPrefs::gfx_webrender_dcomp_video_sw_overlay_win_AtStartup()) {
+ gfxVars::SetUseWebRenderDCompSwVideoOverlayWin(true);
+ }
+
+ bool useHwVideoZeroCopy = false;
+ if (StaticPrefs::media_wmf_zero_copy_nv12_textures_AtStartup()) {
+ // XXX relax limitation to Windows 8.1
+ if (IsWin10OrLater() && hasHardware) {
+ useHwVideoZeroCopy = true;
+ }
+
+ if (useHwVideoZeroCopy &&
+ !StaticPrefs::
+ media_wmf_zero_copy_nv12_textures_force_enabled_AtStartup()) {
+ nsCString failureId;
+ int32_t status;
+ const nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
+ if (NS_FAILED(gfxInfo->GetFeatureStatus(
+ nsIGfxInfo::FEATURE_HW_DECODED_VIDEO_ZERO_COPY, failureId,
+ &status))) {
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::HW_DECODED_VIDEO_ZERO_COPY);
+ feature.DisableByDefault(FeatureStatus::BlockedNoGfxInfo,
+ "gfxInfo is broken",
+ "FEATURE_FAILURE_WR_NO_GFX_INFO"_ns);
+ useHwVideoZeroCopy = false;
+ } else {
+ if (status != nsIGfxInfo::FEATURE_ALLOW_ALWAYS) {
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::HW_DECODED_VIDEO_ZERO_COPY);
+ feature.DisableByDefault(FeatureStatus::Blocked,
+ "Blocklisted by gfxInfo", failureId);
+ useHwVideoZeroCopy = false;
+ }
+ }
+ }
+ }
+
+ if (useHwVideoZeroCopy) {
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::HW_DECODED_VIDEO_ZERO_COPY);
+ feature.EnableByDefault();
+ gfxVars::SetHwDecodedVideoZeroCopy(true);
+ }
+
+ bool reuseDecoderDevice = false;
+ if (StaticPrefs::gfx_direct3d11_reuse_decoder_device_AtStartup()) {
+ reuseDecoderDevice = true;
+
+ if (reuseDecoderDevice &&
+ !StaticPrefs::
+ gfx_direct3d11_reuse_decoder_device_force_enabled_AtStartup()) {
+ nsCString failureId;
+ int32_t status;
+ const nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
+ if (NS_FAILED(gfxInfo->GetFeatureStatus(
+ nsIGfxInfo::FEATURE_REUSE_DECODER_DEVICE, failureId, &status))) {
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::REUSE_DECODER_DEVICE);
+ feature.DisableByDefault(FeatureStatus::BlockedNoGfxInfo,
+ "gfxInfo is broken",
+ "FEATURE_FAILURE_WR_NO_GFX_INFO"_ns);
+ reuseDecoderDevice = false;
+ } else {
+ if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::REUSE_DECODER_DEVICE);
+ feature.DisableByDefault(FeatureStatus::Blocked,
+ "Blocklisted by gfxInfo", failureId);
+ reuseDecoderDevice = false;
+ }
+ }
+ }
+ }
+
+ if (reuseDecoderDevice) {
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::REUSE_DECODER_DEVICE);
+ feature.EnableByDefault();
+ gfxVars::SetReuseDecoderDevice(true);
+ }
+
+ if (Preferences::GetBool("gfx.webrender.flip-sequential", false)) {
+ if (gfxVars::UseWebRenderANGLE()) {
+ gfxVars::SetUseWebRenderFlipSequentialWin(true);
+ }
+ }
+ if (Preferences::GetBool("gfx.webrender.triple-buffering.enabled", false)) {
+ if (gfxVars::UseWebRenderDCompWin() ||
+ gfxVars::UseWebRenderFlipSequentialWin()) {
+ gfxVars::SetUseWebRenderTripleBufferingWin(true);
+ }
+ }
+#endif
+
+ if (gfxConfig::IsEnabled(Feature::WEBRENDER_COMPOSITOR)) {
+ gfxVars::SetUseWebRenderCompositor(true);
+ }
+
+ Telemetry::ScalarSet(
+ Telemetry::ScalarID::GFX_OS_COMPOSITOR,
+ gfx::gfxConfig::IsEnabled(gfx::Feature::WEBRENDER_COMPOSITOR));
+
+ if (gfxConfig::IsEnabled(Feature::WEBRENDER_PARTIAL)) {
+ gfxVars::SetWebRenderMaxPartialPresentRects(
+ StaticPrefs::gfx_webrender_max_partial_present_rects_AtStartup());
+ }
+
+ // Set features that affect WR's RendererOptions
+ gfxVars::SetUseGLSwizzle(
+ IsFeatureSupported(nsIGfxInfo::FEATURE_GL_SWIZZLE, true));
+ gfxVars::SetUseWebRenderScissoredCacheClears(gfx::gfxConfig::IsEnabled(
+ gfx::Feature::WEBRENDER_SCISSORED_CACHE_CLEARS));
+
+ // The RemoveShaderCacheFromDiskIfNecessary() needs to be called after
+ // WebRenderConfig initialization.
+ gfxUtils::RemoveShaderCacheFromDiskIfNecessary();
+}
+
+void gfxPlatform::InitHardwareVideoConfig() {
+ if (!XRE_IsParentProcess()) {
+ return;
+ }
+
+#ifdef MOZ_WIDGET_GTK
+ // We don't want to expose codec info if whole HW decoding is disabled.
+ if (!sLayersSupportsHardwareVideoDecoding) {
+ return;
+ }
+#endif
+
+ nsCString message;
+ nsCString failureId;
+
+ FeatureState& featureVP8 = gfxConfig::GetFeature(Feature::VP8_HW_DECODE);
+ featureVP8.EnableByDefault();
+
+ if (!IsGfxInfoStatusOkay(nsIGfxInfo::FEATURE_VP8_HW_DECODE, &message,
+ failureId)) {
+ featureVP8.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ }
+ gfxVars::SetUseVP8HwDecode(featureVP8.IsEnabled());
+
+ FeatureState& featureVP9 = gfxConfig::GetFeature(Feature::VP9_HW_DECODE);
+ featureVP9.EnableByDefault();
+
+ if (!IsGfxInfoStatusOkay(nsIGfxInfo::FEATURE_VP9_HW_DECODE, &message,
+ failureId)) {
+ featureVP9.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ }
+ gfxVars::SetUseVP9HwDecode(featureVP9.IsEnabled());
+
+ // H264_HW_DECODE/AV1_HW_DECODE is used on Linux only right now.
+#ifdef MOZ_WIDGET_GTK
+ FeatureState& featureH264 = gfxConfig::GetFeature(Feature::H264_HW_DECODE);
+ featureH264.EnableByDefault();
+
+ if (!IsGfxInfoStatusOkay(nsIGfxInfo::FEATURE_H264_HW_DECODE, &message,
+ failureId)) {
+ featureH264.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ }
+ gfxVars::SetUseH264HwDecode(featureH264.IsEnabled());
+
+ FeatureState& featureAV1 = gfxConfig::GetFeature(Feature::AV1_HW_DECODE);
+ featureAV1.EnableByDefault();
+
+ if (!IsGfxInfoStatusOkay(nsIGfxInfo::FEATURE_AV1_HW_DECODE, &message,
+ failureId)) {
+ featureAV1.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ }
+ gfxVars::SetUseAV1HwDecode(featureAV1.IsEnabled());
+#endif
+}
+
+void gfxPlatform::InitWebGLConfig() {
+ if (!XRE_IsParentProcess()) return;
+
+ const nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
+
+ const auto IsFeatureOk = [&](const int32_t feature) {
+ nsCString discardFailureId;
+ int32_t status;
+ MOZ_RELEASE_ASSERT(NS_SUCCEEDED(
+ gfxInfo->GetFeatureStatus(feature, discardFailureId, &status)));
+ return (status == nsIGfxInfo::FEATURE_STATUS_OK);
+ };
+
+ gfxVars::SetAllowWebgl2(IsFeatureOk(nsIGfxInfo::FEATURE_WEBGL2));
+ gfxVars::SetWebglAllowWindowsNativeGl(
+ IsFeatureOk(nsIGfxInfo::FEATURE_WEBGL_OPENGL));
+ gfxVars::SetAllowWebglAccelAngle(
+ IsFeatureOk(nsIGfxInfo::FEATURE_WEBGL_ANGLE));
+ gfxVars::SetWebglUseHardware(
+ IsFeatureOk(nsIGfxInfo::FEATURE_WEBGL_USE_HARDWARE));
+
+ if (kIsMacOS) {
+ // Avoid crash for Intel HD Graphics 3000 on OSX. (Bug 1413269)
+ nsString vendorID, deviceID;
+ gfxInfo->GetAdapterVendorID(vendorID);
+ gfxInfo->GetAdapterDeviceID(deviceID);
+ if (vendorID.EqualsLiteral("0x8086") &&
+ (deviceID.EqualsLiteral("0x0116") ||
+ deviceID.EqualsLiteral("0x0126"))) {
+ gfxVars::SetWebglAllowCoreProfile(false);
+ }
+ }
+
+ bool allowWebGLOop =
+ IsFeatureOk(nsIGfxInfo::FEATURE_ALLOW_WEBGL_OUT_OF_PROCESS);
+ if (!kIsAndroid) {
+ gfxVars::SetAllowWebglOop(allowWebGLOop);
+ } else {
+ // On android, enable out-of-process WebGL only when GPU process exists.
+ gfxVars::SetAllowWebglOop(allowWebGLOop &&
+ gfxConfig::IsEnabled(Feature::GPU_PROCESS));
+ // Enable gl::SharedSurface of AndroidHardwareBuffer when API version is 26+
+ // and out-of-process WebGL is enabled.
+#ifdef MOZ_WIDGET_ANDROID
+ if (gfxVars::AllowWebglOop() && jni::GetAPIVersion() >= 26 &&
+ StaticPrefs::webgl_out_of_process_enable_ahardwarebuffer_AtStartup()) {
+ gfxVars::SetUseAHardwareBufferSharedSurfaceWebglOop(true);
+ }
+#endif
+ }
+
+ bool threadsafeGL = IsFeatureOk(nsIGfxInfo::FEATURE_THREADSAFE_GL);
+ threadsafeGL |= StaticPrefs::webgl_threadsafe_gl_force_enabled_AtStartup();
+ threadsafeGL &= !StaticPrefs::webgl_threadsafe_gl_force_disabled_AtStartup();
+ gfxVars::SetSupportsThreadsafeGL(threadsafeGL);
+
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::CANVAS_RENDERER_THREAD);
+ if (!threadsafeGL) {
+ feature.DisableByDefault(FeatureStatus::Blocked, "Thread unsafe GL",
+ "FEATURE_FAILURE_THREAD_UNSAFE_GL"_ns);
+ } else if (!StaticPrefs::webgl_use_canvas_render_thread_AtStartup()) {
+ feature.DisableByDefault(FeatureStatus::Blocked, "Disabled by pref",
+ "FEATURE_FAILURE_DISABLED_BY_PREF"_ns);
+ } else {
+ feature.EnableByDefault();
+ }
+ gfxVars::SetUseCanvasRenderThread(feature.IsEnabled());
+
+ bool webglOopAsyncPresentForceSync =
+ !gfxVars::UseCanvasRenderThread() ||
+ StaticPrefs::webgl_out_of_process_async_present_force_sync();
+ gfxVars::SetWebglOopAsyncPresentForceSync(webglOopAsyncPresentForceSync);
+
+ if (kIsAndroid) {
+ // Don't enable robust buffer access on Adreno 620 and 630 devices.
+ // It causes the linking of some shaders to fail. See bug 1485441 and
+ // bug 1810693.
+ nsAutoString renderer;
+ gfxInfo->GetAdapterDeviceID(renderer);
+ if ((renderer.Find(u"Adreno (TM) 620") != -1) ||
+ (renderer.Find(u"Adreno (TM) 630") != -1)) {
+ gfxVars::SetAllowEglRbab(false);
+ }
+ }
+
+ if (kIsWayland || kIsX11) {
+ nsCString discardFailureId;
+ int32_t status;
+ FeatureState& feature =
+ gfxConfig::GetFeature(Feature::DMABUF_SURFACE_EXPORT);
+ if (NS_FAILED(
+ gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DMABUF_SURFACE_EXPORT,
+ discardFailureId, &status)) ||
+ status != nsIGfxInfo::FEATURE_STATUS_OK) {
+ feature.DisableByDefault(FeatureStatus::Blocked, "Blocklisted by gfxInfo",
+ discardFailureId);
+ gfxVars::SetUseDMABufSurfaceExport(false);
+ } else {
+ feature.EnableByDefault();
+ }
+ }
+}
+
+void gfxPlatform::InitWebGPUConfig() {
+ if (!XRE_IsParentProcess()) {
+ return;
+ }
+
+ FeatureState& feature = gfxConfig::GetFeature(Feature::WEBGPU);
+ feature.EnableByDefault();
+
+ nsCString message;
+ nsCString failureId;
+ if (!IsGfxInfoStatusOkay(nsIGfxInfo::FEATURE_WEBGPU, &message, failureId)) {
+ if (StaticPrefs::gfx_webgpu_ignore_blocklist_AtStartup()) {
+ feature.UserForceEnable(
+ "Ignoring blocklist entry because of gfx.webgpu.force-enabled:true.");
+ }
+
+ feature.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ }
+
+#ifdef RELEASE_OR_BETA
+ feature.ForceDisable(FeatureStatus::Blocked,
+ "WebGPU cannot be enabled in release or beta",
+ "WEBGPU_DISABLE_RELEASE_OR_BETA"_ns);
+#endif
+
+ gfxVars::SetAllowWebGPU(feature.IsEnabled());
+}
+
+#ifdef XP_WIN
+static void WindowOcclusionPrefChangeCallback(const char* aPref, void*) {
+ const char* env = PR_GetEnv("MOZ_WINDOW_OCCLUSION");
+ if (env) {
+ // env has a higher priority than pref.
+ return;
+ }
+
+ FeatureState& feature = gfxConfig::GetFeature(Feature::WINDOW_OCCLUSION);
+ bool enabled =
+ StaticPrefs::widget_windows_window_occlusion_tracking_enabled();
+
+ printf_stderr("Dynamically enable window occlusion %d\n", enabled);
+
+ // Update feature before calling WinUtils::EnableWindowOcclusion()
+ if (enabled) {
+ feature.UserEnable("User enabled by pref");
+ } else {
+ feature.UserDisable("User disabled via pref",
+ "FEATURE_FAILURE_PREF_DISABLED"_ns);
+ }
+ widget::WinUtils::EnableWindowOcclusion(enabled);
+}
+#endif
+
+void gfxPlatform::InitWindowOcclusionConfig() {
+ if (!XRE_IsParentProcess()) {
+ return;
+ }
+#ifdef XP_WIN
+ FeatureState& feature = gfxConfig::GetFeature(Feature::WINDOW_OCCLUSION);
+ feature.SetDefaultFromPref(
+ StaticPrefs::
+ GetPrefName_widget_windows_window_occlusion_tracking_enabled(),
+ true,
+ StaticPrefs::
+ GetPrefDefault_widget_windows_window_occlusion_tracking_enabled());
+
+ const char* env = PR_GetEnv("MOZ_WINDOW_OCCLUSION");
+ if (env) {
+ if (*env == '1') {
+ feature.UserForceEnable("Force enabled by envvar");
+ } else {
+ feature.UserDisable("Force disabled by envvar",
+ "FEATURE_FAILURE_OCCL_ENV"_ns);
+ }
+ }
+
+ Preferences::RegisterCallback(
+ WindowOcclusionPrefChangeCallback,
+ nsDependentCString(
+ StaticPrefs::
+ GetPrefName_widget_windows_window_occlusion_tracking_enabled()));
+#endif
+}
+
+static void BackdropFilterPrefChangeCallback(const char*, void*) {
+ FeatureState& feature = gfxConfig::GetFeature(Feature::BACKDROP_FILTER);
+
+ // We need to reset because the user status needs to be set before the
+ // environment status, but the environment status comes from the blocklist,
+ // and the user status can be updated after the fact.
+ feature.Reset();
+ feature.EnableByDefault();
+
+ if (StaticPrefs::layout_css_backdrop_filter_force_enabled()) {
+ feature.UserForceEnable("Force enabled by pref");
+ }
+
+ nsCString message;
+ nsCString failureId;
+ if (!gfxPlatform::IsGfxInfoStatusOkay(nsIGfxInfo::FEATURE_BACKDROP_FILTER,
+ &message, failureId)) {
+ feature.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ }
+
+ // This may still be gated by the layout.css.backdrop-filter.enabled pref but
+ // the test infrastructure is very sensitive to how changes to that pref
+ // propagate, so we don't include them in the gfxVars/gfxFeature.
+ gfxVars::SetAllowBackdropFilter(feature.IsEnabled());
+}
+
+void gfxPlatform::InitBackdropFilterConfig() {
+ // This would ideally be in the nsCSSProps code
+ // but nsCSSProps is initialized before gfxPlatform
+ // so it has to be done here.
+ gfxVars::AddReceiver(&nsCSSProps::GfxVarReceiver());
+
+ if (!XRE_IsParentProcess()) {
+ // gfxVars doesn't notify receivers when initialized on content processes
+ // we need to explicitly recompute backdrop-filter's enabled state here.
+ nsCSSProps::RecomputeEnabledState(
+ StaticPrefs::GetPrefName_layout_css_backdrop_filter_enabled());
+ return;
+ }
+
+ BackdropFilterPrefChangeCallback(nullptr, nullptr);
+
+ Preferences::RegisterCallback(
+ BackdropFilterPrefChangeCallback,
+ nsDependentCString(
+ StaticPrefs::GetPrefName_layout_css_backdrop_filter_force_enabled()));
+}
+
+static void AcceleratedCanvas2DPrefChangeCallback(const char*, void*) {
+ FeatureState& feature = gfxConfig::GetFeature(Feature::ACCELERATED_CANVAS2D);
+
+ // Reset to track toggling prefs and ensure force-enable does not happen
+ // after blocklist.
+ feature.Reset();
+
+ // gfx.canvas.accelerated pref controls whether platform enables the feature,
+ // but it still allows blocklisting to override it later.
+ feature.SetDefaultFromPref(
+ StaticPrefs::GetPrefName_gfx_canvas_accelerated(), true,
+ StaticPrefs::GetPrefDefault_gfx_canvas_accelerated());
+
+ // gfx.canvas.accelerated.force-enabled overrides the blocklist.
+ if (StaticPrefs::gfx_canvas_accelerated_force_enabled()) {
+ feature.UserForceEnable("Force-enabled by pref");
+ }
+
+ if (kIsAndroid && !gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
+ feature.Disable(FeatureStatus::Blocked, "Disabled by GPU Process disabled",
+ "FEATURE_FAILURE_DISABLED_BY_GPU_PROCESS_DISABLED"_ns);
+ } else if (!gfxConfig::IsEnabled(Feature::WEBRENDER)) {
+ // There isn't much benefit to accelerating Canvas2D if we can't accelerate
+ // WebRender itself.
+ feature.Disable(FeatureStatus::Blocked, "Disabled by Software WebRender",
+ "FEATURE_FAILURE_DISABLED_BY_SOFTWARE_WEBRENDER"_ns);
+ }
+
+ // Check if blocklisted despite the default pref.
+ nsCString message;
+ nsCString failureId;
+ if (!gfxPlatform::IsGfxInfoStatusOkay(
+ nsIGfxInfo::FEATURE_ACCELERATED_CANVAS2D, &message, failureId)) {
+ feature.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ }
+
+ gfxVars::SetUseAcceleratedCanvas2D(feature.IsEnabled());
+}
+
+void gfxPlatform::InitAcceleratedCanvas2DConfig() {
+ if (!XRE_IsParentProcess()) {
+ return;
+ }
+
+ // Decide during pref changes whether or not to enable acceleration. This
+ // allows easily toggling acceleration on and off to test performance.
+ AcceleratedCanvas2DPrefChangeCallback(nullptr, nullptr);
+
+ Preferences::RegisterCallback(
+ AcceleratedCanvas2DPrefChangeCallback,
+ nsDependentCString(StaticPrefs::GetPrefName_gfx_canvas_accelerated()));
+ Preferences::RegisterCallback(
+ AcceleratedCanvas2DPrefChangeCallback,
+ nsDependentCString(
+ StaticPrefs::GetPrefName_gfx_canvas_accelerated_force_enabled()));
+}
+
+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::AccelerateLayersByDefault() {
+#if defined(MOZ_GL_PROVIDER) || defined(MOZ_WIDGET_UIKIT)
+ return true;
+#else
+ return false;
+#endif
+}
+
+/* static */
+bool gfxPlatform::UsesOffMainThreadCompositing() {
+ if (XRE_GetProcessType() == GeckoProcessType_GPU) {
+ return true;
+ }
+
+ static bool firstTime = true;
+ static bool result = false;
+
+ if (firstTime) {
+ MOZ_ASSERT(sLayersAccelerationPrefsInitialized);
+ result = gfxVars::BrowserTabsRemoteAutostart() ||
+ !StaticPrefs::
+ layers_offmainthreadcomposition_force_disabled_AtStartup();
+#if defined(MOZ_WIDGET_GTK)
+ // Linux users who chose OpenGL are being included in OMTC
+ result |= StaticPrefs::
+ layers_acceleration_force_enabled_AtStartup_DoNotUseDirectly();
+
+#endif
+ firstTime = false;
+ }
+
+ return result;
+}
+
+RefPtr<mozilla::VsyncDispatcher> gfxPlatform::GetGlobalVsyncDispatcher() {
+ MOZ_ASSERT(mVsyncDispatcher,
+ "mVsyncDispatcher should have been initialized by ReInitFrameRate "
+ "during gfxPlatform init");
+ MOZ_ASSERT(XRE_IsParentProcess());
+ return mVsyncDispatcher;
+}
+
+already_AddRefed<mozilla::gfx::VsyncSource>
+gfxPlatform::GetGlobalHardwareVsyncSource() {
+ if (!mGlobalHardwareVsyncSource) {
+ mGlobalHardwareVsyncSource = CreateGlobalHardwareVsyncSource();
+ }
+ return do_AddRef(mGlobalHardwareVsyncSource);
+}
+
+/***
+ * The preference "layout.frame_rate" has 3 meanings depending on the value:
+ *
+ * -1 = Auto (default), use hardware vsync or software vsync @ 60 hz if hw
+ * vsync fails.
+ * 0 = ASAP mode - used during talos testing.
+ * X = Software vsync at a rate of X times per second.
+ */
+already_AddRefed<mozilla::gfx::VsyncSource>
+gfxPlatform::GetSoftwareVsyncSource() {
+ if (!mSoftwareVsyncSource) {
+ double rateInMS = 1000.0 / (double)gfxPlatform::GetSoftwareVsyncRate();
+ mSoftwareVsyncSource = new mozilla::gfx::SoftwareVsyncSource(
+ TimeDuration::FromMilliseconds(rateInMS));
+ }
+ return do_AddRef(mSoftwareVsyncSource);
+}
+
+/* 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.
+ // Ignore privacy_resistFingerprinting to preserve ASAP mode there.
+ return StaticPrefs::layout_frame_rate() == 0;
+}
+
+static int LayoutFrameRateFromPrefs() {
+ auto val = StaticPrefs::layout_frame_rate();
+ if (nsContentUtils::ShouldResistFingerprinting(
+ "The frame rate is a global property.")) {
+ val = 60;
+ }
+ return val;
+}
+
+/* static */
+bool gfxPlatform::ForceSoftwareVsync() {
+ return LayoutFrameRateFromPrefs() > 0;
+}
+
+/* static */
+int gfxPlatform::GetSoftwareVsyncRate() {
+ int preferenceRate = LayoutFrameRateFromPrefs();
+ if (preferenceRate <= 0) {
+ return gfxPlatform::GetDefaultFrameRate();
+ }
+ return preferenceRate;
+}
+
+/* static */
+int gfxPlatform::GetDefaultFrameRate() { return 60; }
+
+/* static */
+void gfxPlatform::ReInitFrameRate(const char* aPrefIgnored,
+ void* aDataIgnored) {
+ MOZ_RELEASE_ASSERT(XRE_IsParentProcess());
+
+ if (gPlatform->mSoftwareVsyncSource) {
+ // Update the rate of the existing software vsync source.
+ double rateInMS = 1000.0 / (double)gfxPlatform::GetSoftwareVsyncRate();
+ gPlatform->mSoftwareVsyncSource->SetVsyncRate(
+ TimeDuration::FromMilliseconds(rateInMS));
+ }
+
+ // Swap out the dispatcher's underlying source.
+ RefPtr<VsyncSource> vsyncSource =
+ gfxPlatform::ForceSoftwareVsync()
+ ? gPlatform->GetSoftwareVsyncSource()
+ : gPlatform->GetGlobalHardwareVsyncSource();
+ gPlatform->mVsyncDispatcher->SetVsyncSource(vsyncSource);
+}
+
+const char* gfxPlatform::GetAzureCanvasBackend() const {
+ BackendType backend{};
+
+ if (gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
+ // Assume content process' backend prefs.
+ BackendPrefsData data = GetBackendPrefs();
+ backend = GetCanvasBackendPref(data.mCanvasBitmask);
+ if (backend == BackendType::NONE) {
+ backend = data.mCanvasDefault;
+ }
+ } else {
+ backend = mPreferredCanvasBackend;
+ }
+
+ return GetBackendName(backend);
+}
+
+const char* gfxPlatform::GetAzureContentBackend() const {
+ BackendType backend{};
+
+ if (gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
+ // Assume content process' backend prefs.
+ BackendPrefsData data = GetBackendPrefs();
+ backend = GetContentBackendPref(data.mContentBitmask);
+ if (backend == BackendType::NONE) {
+ backend = data.mContentDefault;
+ }
+ } else {
+ backend = mContentBackend;
+ }
+
+ return GetBackendName(backend);
+}
+
+void gfxPlatform::GetAzureBackendInfo(mozilla::widget::InfoObject& aObj) {
+ if (gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
+ aObj.DefineProperty("AzureCanvasBackend (UI Process)",
+ GetBackendName(mPreferredCanvasBackend));
+ aObj.DefineProperty("AzureFallbackCanvasBackend (UI Process)",
+ GetBackendName(mFallbackCanvasBackend));
+ aObj.DefineProperty("AzureContentBackend (UI Process)",
+ GetBackendName(mContentBackend));
+ } else {
+ aObj.DefineProperty("AzureFallbackCanvasBackend",
+ GetBackendName(mFallbackCanvasBackend));
+ }
+
+ aObj.DefineProperty("AzureCanvasBackend", GetAzureCanvasBackend());
+ aObj.DefineProperty("AzureContentBackend", GetAzureContentBackend());
+}
+
+void gfxPlatform::GetApzSupportInfo(mozilla::widget::InfoObject& aObj) {
+ if (!gfxPlatform::AsyncPanZoomEnabled()) {
+ return;
+ }
+
+ if (SupportsApzWheelInput()) {
+ aObj.DefineProperty("ApzWheelInput", 1);
+ }
+
+ if (SupportsApzTouchInput()) {
+ aObj.DefineProperty("ApzTouchInput", 1);
+ }
+
+ if (SupportsApzDragInput()) {
+ aObj.DefineProperty("ApzDragInput", 1);
+ }
+
+ if (SupportsApzKeyboardInput() &&
+ !StaticPrefs::accessibility_browsewithcaret()) {
+ aObj.DefineProperty("ApzKeyboardInput", 1);
+ }
+
+ if (SupportsApzAutoscrolling()) {
+ aObj.DefineProperty("ApzAutoscrollInput", 1);
+ }
+
+ if (SupportsApzZooming()) {
+ aObj.DefineProperty("ApzZoomingInput", 1);
+ }
+}
+
+void gfxPlatform::GetFrameStats(mozilla::widget::InfoObject& aObj) {
+ uint32_t i = 0;
+ for (FrameStats& f : mFrameStats) {
+ nsPrintfCString name("Slow Frame #%02u", ++i);
+
+ nsPrintfCString value(
+ "Frame %" PRIu64
+ "(%s) CONTENT_FRAME_TIME %d - Transaction start %f, main-thread time "
+ "%f, full paint time %f, Skipped composites %u, Composite start %f, "
+ "Resource upload time %f, GPU cache upload time %f, Render time %f, "
+ "Composite time %f",
+ f.id().mId, f.url().get(), f.contentFrameTime(),
+ (f.transactionStart() - f.refreshStart()).ToMilliseconds(),
+ (f.fwdTime() - f.transactionStart()).ToMilliseconds(),
+ f.sceneBuiltTime()
+ ? (f.sceneBuiltTime() - f.transactionStart()).ToMilliseconds()
+ : 0.0,
+ f.skippedComposites(),
+ (f.compositeStart() - f.refreshStart()).ToMilliseconds(),
+ f.resourceUploadTime(), f.gpuCacheUploadTime(),
+ (f.compositeEnd() - f.renderStart()).ToMilliseconds(),
+ (f.compositeEnd() - f.compositeStart()).ToMilliseconds());
+ aObj.DefineProperty(name.get(), value.get());
+ }
+}
+
+void gfxPlatform::GetCMSSupportInfo(mozilla::widget::InfoObject& aObj) {
+ nsTArray<uint8_t> outputProfileData =
+ gfxPlatform::GetPlatform()->GetPlatformCMSOutputProfileData();
+ if (outputProfileData.IsEmpty()) {
+ nsPrintfCString msg("Empty profile data");
+ aObj.DefineProperty("CMSOutputProfile", msg.get());
+ return;
+ }
+
+ // Some profiles can be quite large. We don't want to include giant profiles
+ // by default in about:support. For now, we only accept less than 8kiB.
+ const size_t kMaxProfileSize = 8192;
+ if (outputProfileData.Length() >= kMaxProfileSize) {
+ nsPrintfCString msg("%zu bytes, too large", outputProfileData.Length());
+ aObj.DefineProperty("CMSOutputProfile", msg.get());
+ return;
+ }
+
+ nsString encodedProfile;
+ nsresult rv =
+ Base64Encode(reinterpret_cast<const char*>(outputProfileData.Elements()),
+ outputProfileData.Length(), encodedProfile);
+ if (!NS_SUCCEEDED(rv)) {
+ nsPrintfCString msg("base64 encode failed 0x%08x",
+ static_cast<uint32_t>(rv));
+ aObj.DefineProperty("CMSOutputProfile", msg.get());
+ return;
+ }
+
+ aObj.DefineProperty("CMSOutputProfile", encodedProfile);
+}
+
+void gfxPlatform::GetDisplayInfo(mozilla::widget::InfoObject& aObj) {
+ auto& screens = widget::ScreenManager::GetSingleton().CurrentScreenList();
+ aObj.DefineProperty("DisplayCount", screens.Length());
+
+ size_t i = 0;
+ for (auto& screen : screens) {
+ const LayoutDeviceIntRect rect = screen->GetRect();
+ nsPrintfCString value("%dx%d@%dHz scales:%f|%f", rect.width, rect.height,
+ screen->GetRefreshRate(),
+ screen->GetContentsScaleFactor(),
+ screen->GetDefaultCSSScaleFactor());
+
+ aObj.DefineProperty(nsPrintfCString("Display%zu", i++).get(),
+ NS_ConvertUTF8toUTF16(value));
+ }
+
+ // Platform display info is only currently used for about:support and getting
+ // it might fail in a child process anyway.
+ if (XRE_IsParentProcess()) {
+ GetPlatformDisplayInfo(aObj);
+ }
+}
+
+void gfxPlatform::GetOverlayInfo(mozilla::widget::InfoObject& aObj) {
+ if (mOverlayInfo.isNothing()) {
+ return;
+ }
+
+ auto toString = [](mozilla::layers::OverlaySupportType aType) -> const char* {
+ switch (aType) {
+ case mozilla::layers::OverlaySupportType::None:
+ return "None";
+ case mozilla::layers::OverlaySupportType::Software:
+ return "Software";
+ case mozilla::layers::OverlaySupportType::Direct:
+ return "Direct";
+ case mozilla::layers::OverlaySupportType::Scaling:
+ return "Scaling";
+ default:
+ MOZ_ASSERT_UNREACHABLE("Unexpected to be called");
+ }
+ MOZ_CRASH("Incomplete switch");
+ };
+
+ nsPrintfCString value("NV12=%s YUV2=%s BGRA8=%s RGB10A2=%s",
+ toString(mOverlayInfo.ref().mNv12Overlay),
+ toString(mOverlayInfo.ref().mYuy2Overlay),
+ toString(mOverlayInfo.ref().mBgra8Overlay),
+ toString(mOverlayInfo.ref().mRgb10a2Overlay));
+
+ aObj.DefineProperty("OverlaySupport", NS_ConvertUTF8toUTF16(value));
+}
+
+void gfxPlatform::GetSwapChainInfo(mozilla::widget::InfoObject& aObj) {
+ if (mSwapChainInfo.isNothing()) {
+ return;
+ }
+
+ auto toString = [](bool aTearingSupported) -> const char* {
+ if (aTearingSupported) {
+ return "Supported";
+ }
+ return "Not Supported";
+ };
+
+ nsPrintfCString value("%s", toString(mSwapChainInfo.ref().mTearingSupported));
+
+ aObj.DefineProperty("SwapChainTearingSupport", NS_ConvertUTF8toUTF16(value));
+}
+
+class FrameStatsComparator {
+ public:
+ bool Equals(const FrameStats& aA, const FrameStats& aB) const {
+ return aA.contentFrameTime() == aB.contentFrameTime();
+ }
+ // Reverse the condition here since we want the array sorted largest to
+ // smallest.
+ bool LessThan(const FrameStats& aA, const FrameStats& aB) const {
+ return aA.contentFrameTime() > aB.contentFrameTime();
+ }
+};
+
+void gfxPlatform::NotifyFrameStats(nsTArray<FrameStats>&& aFrameStats) {
+ if (!StaticPrefs::gfx_logging_slow_frames_enabled_AtStartup()) {
+ return;
+ }
+
+ FrameStatsComparator comp;
+ for (FrameStats& f : aFrameStats) {
+ mFrameStats.InsertElementSorted(f, comp);
+ }
+ if (mFrameStats.Length() > 10) {
+ mFrameStats.SetLength(10);
+ }
+}
+
+/*static*/
+uint32_t gfxPlatform::TargetFrameRate() {
+ if (gPlatform && gPlatform->mVsyncDispatcher) {
+ return round(1000.0 /
+ gPlatform->mVsyncDispatcher->GetVsyncRate().ToMilliseconds());
+ }
+ return 0;
+}
+
+/* static */
+bool gfxPlatform::UseDesktopZoomingScrollbars() {
+ return StaticPrefs::apz_allow_zooming() &&
+ !StaticPrefs::apz_force_disable_desktop_zooming_scrollbars();
+}
+
+/*static*/
+bool gfxPlatform::AsyncPanZoomEnabled() {
+#if !defined(MOZ_WIDGET_ANDROID) && !defined(MOZ_WIDGET_UIKIT)
+ // For XUL applications (everything but 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
+#ifdef MOZ_WIDGET_ANDROID
+ return true;
+#else
+ // If Fission is enabled, OOP iframes require APZ for hittest. So, we
+ // need to forcibly enable APZ in that case for avoiding users confused.
+ if (FissionAutostart()) {
+ return true;
+ }
+ return StaticPrefs::
+ layers_async_pan_zoom_enabled_AtStartup_DoNotUseDirectly();
+#endif
+}
+
+/*static*/
+bool gfxPlatform::PerfWarnings() {
+ return StaticPrefs::gfx_perf_warnings_enabled();
+}
+
+void gfxPlatform::NotifyCompositorCreated(LayersBackend aBackend) {
+ if (mCompositorBackend == aBackend) {
+ return;
+ }
+
+ if (mCompositorBackend != LayersBackend::LAYERS_NONE) {
+ gfxCriticalNote << "Compositors might be mixed (" << int(mCompositorBackend)
+ << "," << int(aBackend) << ")";
+ }
+
+ // Set the backend before we notify so it's available immediately.
+ mCompositorBackend = aBackend;
+
+ if (XRE_IsParentProcess()) {
+ Telemetry::ScalarSet(
+ Telemetry::ScalarID::GFX_COMPOSITOR,
+ NS_ConvertUTF8toUTF16(GetLayersBackendName(mCompositorBackend)));
+
+ nsCString geckoVersion;
+ nsCOMPtr<nsIXULAppInfo> app = do_GetService("@mozilla.org/xre/app-info;1");
+ if (app) {
+ app->GetVersion(geckoVersion);
+ }
+ Telemetry::ScalarSet(Telemetry::ScalarID::GFX_LAST_COMPOSITOR_GECKO_VERSION,
+ NS_ConvertASCIItoUTF16(geckoVersion));
+
+ Telemetry::ScalarSet(
+ Telemetry::ScalarID::GFX_FEATURE_WEBRENDER,
+ NS_ConvertUTF8toUTF16(gfxConfig::GetFeature(gfx::Feature::WEBRENDER)
+ .GetStatusAndFailureIdString()));
+ }
+
+ // Notify that we created a compositor, so telemetry can update.
+ NS_DispatchToMainThread(
+ NS_NewRunnableFunction("gfxPlatform::NotifyCompositorCreated", [] {
+ if (nsCOMPtr<nsIObserverService> obsvc =
+ services::GetObserverService()) {
+ obsvc->NotifyObservers(nullptr, "compositor:created", nullptr);
+ }
+ }));
+}
+
+/* static */
+bool gfxPlatform::FallbackFromAcceleration(FeatureStatus aStatus,
+ const char* aMessage,
+ const nsACString& aFailureId,
+ bool aCrashAfterFinalFallback) {
+ // We always want to ensure (Hardware) WebRender is disabled.
+ if (gfxConfig::IsEnabled(Feature::WEBRENDER)) {
+ gfxConfig::GetFeature(Feature::WEBRENDER)
+ .ForceDisable(aStatus, aMessage, aFailureId);
+ }
+
+ // Determine whether or not we are allowed to use Software WebRender in
+ // fallback without the GPU process. Either the pref is false, or the feature
+ // is enabled and we are currently still using it.
+ bool swglFallbackAllowed =
+ !StaticPrefs::
+ gfx_webrender_fallback_software_requires_gpu_process_AtStartup() ||
+ gfxConfig::IsEnabled(Feature::GPU_PROCESS);
+
+#ifdef XP_WIN
+ // Before we disable D3D11 and HW_COMPOSITING, we should check if we can
+ // fallback from WebRender to Software WebRender + D3D11 compositing.
+ if (StaticPrefs::gfx_webrender_fallback_software_d3d11_AtStartup() &&
+ swglFallbackAllowed && gfxVars::AllowSoftwareWebRenderD3D11() &&
+ gfxConfig::IsEnabled(Feature::D3D11_COMPOSITING) &&
+ !gfxVars::UseSoftwareWebRender()) {
+ // Fallback to Software WebRender + D3D11 compositing.
+ gfxCriticalNote << "Fallback WR to SW-WR + D3D11";
+ gfxVars::SetUseSoftwareWebRender(true);
+ return true;
+ }
+
+ if (StaticPrefs::gfx_webrender_fallback_software_d3d11_AtStartup() &&
+ swglFallbackAllowed && gfxVars::AllowSoftwareWebRenderD3D11() &&
+ gfxVars::UseSoftwareWebRender()) {
+ // Fallback from Software WebRender + D3D11 to Software WebRender.
+ gfxCriticalNote << "Fallback SW-WR + D3D11 to SW-WR";
+ gfxVars::SetAllowSoftwareWebRenderD3D11(false);
+ return true;
+ }
+
+ // We aren't using Software WebRender + D3D11 compositing, so turn off the
+ // D3D11 and D2D.
+ if (gfxConfig::IsEnabled(Feature::DIRECT2D)) {
+ gfxConfig::GetFeature(Feature::DIRECT2D)
+ .ForceDisable(aStatus, aMessage, aFailureId);
+ }
+ if (gfxConfig::IsEnabled(Feature::D3D11_COMPOSITING)) {
+ gfxConfig::GetFeature(Feature::D3D11_COMPOSITING)
+ .ForceDisable(aStatus, aMessage, aFailureId);
+ }
+#endif
+
+#ifndef MOZ_WIDGET_ANDROID
+ // Non-Android wants to fallback to Software WebRender or Basic. Android wants
+ // to fallback to OpenGL.
+ if (gfxConfig::IsEnabled(Feature::HW_COMPOSITING)) {
+ gfxConfig::GetFeature(Feature::HW_COMPOSITING)
+ .ForceDisable(aStatus, aMessage, aFailureId);
+ }
+#endif
+
+ if (StaticPrefs::gfx_webrender_fallback_software_AtStartup() &&
+ swglFallbackAllowed && !gfxVars::UseSoftwareWebRender()) {
+ // Fallback from WebRender to Software WebRender.
+ gfxCriticalNote << "Fallback WR to SW-WR";
+ gfxVars::SetUseSoftwareWebRender(true);
+ return true;
+ }
+
+ if (!gfxVars::UseSoftwareWebRender()) {
+ // Software WebRender may be disabled due to a startup issue with the
+ // blocklist, despite it being our only fallback option based on the prefs.
+ // If WebRender is unable to be initialized, this means that user would
+ // otherwise get stuck with WebRender. As such, force a switch to Software
+ // WebRender in this case.
+ gfxCriticalNoteOnce << "Fallback WR to SW-WR, forced";
+ gfxVars::SetUseSoftwareWebRender(true);
+ return true;
+ }
+
+ if (aCrashAfterFinalFallback) {
+ MOZ_CRASH("Fallback configurations exhausted");
+ }
+
+ // Continue using Software WebRender (disabled fallback to Basic).
+ gfxCriticalNoteOnce << "Fallback remains SW-WR";
+ return false;
+}
+
+/* static */
+void gfxPlatform::DisableGPUProcess() {
+ gfxVars::SetRemoteCanvasEnabled(false);
+ if (kIsAndroid) {
+ // On android, enable out-of-process WebGL only when GPU process exists.
+ gfxVars::SetAllowWebglOop(false);
+ // On android, enable accelerated canvas only when GPU process exists.
+ gfxVars::SetUseAcceleratedCanvas2D(false);
+ gfxConfig::Disable(Feature::ACCELERATED_CANVAS2D, FeatureStatus::Blocked,
+ "Disabled by GPU Process disabled",
+ "FEATURE_FAILURE_DISABLED_BY_GPU_PROCESS_DISABLED"_ns);
+ }
+
+ RemoteTextureMap::Init();
+ if (gfxVars::UseCanvasRenderThread()) {
+ gfx::CanvasRenderThread::Start();
+ }
+ // We need to initialize the parent process to prepare for WebRender if we
+ // did not end up disabling it, despite losing the GPU process.
+ wr::RenderThread::Start(GPUProcessManager::Get()->AllocateNamespace());
+ image::ImageMemoryReporter::InitForWebRender();
+}
+
+void gfxPlatform::FetchAndImportContentDeviceData() {
+ MOZ_ASSERT(XRE_IsContentProcess());
+
+ if (gContentDeviceInitData) {
+ ImportContentDeviceData(*gContentDeviceInitData);
+ return;
+ }
+
+ mozilla::dom::ContentChild* cc = mozilla::dom::ContentChild::GetSingleton();
+
+ mozilla::gfx::ContentDeviceData data;
+ cc->SendGetGraphicsDeviceInitData(&data);
+
+ ImportContentDeviceData(data);
+}
+
+void gfxPlatform::ImportContentDeviceData(
+ const mozilla::gfx::ContentDeviceData& aData) {
+ MOZ_ASSERT(XRE_IsContentProcess());
+
+ const DevicePrefs& prefs = aData.prefs();
+ gfxConfig::Inherit(Feature::HW_COMPOSITING, prefs.hwCompositing());
+ gfxConfig::Inherit(Feature::OPENGL_COMPOSITING, prefs.oglCompositing());
+}
+
+void gfxPlatform::BuildContentDeviceData(
+ mozilla::gfx::ContentDeviceData* aOut) {
+ MOZ_ASSERT(XRE_IsParentProcess());
+
+ // Make sure our settings are synchronized from the GPU process.
+ DebugOnly<nsresult> rv = GPUProcessManager::Get()->EnsureGPUReady();
+ MOZ_ASSERT(rv != NS_ERROR_ILLEGAL_DURING_SHUTDOWN);
+
+ aOut->prefs().hwCompositing() = gfxConfig::GetValue(Feature::HW_COMPOSITING);
+ aOut->prefs().oglCompositing() =
+ gfxConfig::GetValue(Feature::OPENGL_COMPOSITING);
+}
+
+void gfxPlatform::ImportGPUDeviceData(
+ const mozilla::gfx::GPUDeviceData& aData) {
+ MOZ_ASSERT(XRE_IsParentProcess());
+
+ gfxConfig::ImportChange(Feature::OPENGL_COMPOSITING, aData.oglCompositing());
+}
+
+bool gfxPlatform::SupportsApzTouchInput() const {
+ return dom::TouchEvent::PrefEnabled(nullptr);
+}
+
+bool gfxPlatform::SupportsApzDragInput() const {
+ return StaticPrefs::apz_drag_enabled();
+}
+
+bool gfxPlatform::SupportsApzKeyboardInput() const {
+ return StaticPrefs::apz_keyboard_enabled_AtStartup();
+}
+
+bool gfxPlatform::SupportsApzAutoscrolling() const {
+ return StaticPrefs::apz_autoscroll_enabled();
+}
+
+bool gfxPlatform::SupportsApzZooming() const {
+ return StaticPrefs::apz_allow_zooming();
+}
+
+void gfxPlatform::InitOpenGLConfig() {
+#ifdef XP_WIN
+ // Don't enable by default on Windows, since it could show up in about:support
+ // even though it'll never get used. Only attempt if user enables the pref
+ if (!Preferences::GetBool("layers.prefer-opengl")) {
+ return;
+ }
+#endif
+
+ FeatureState& openGLFeature =
+ gfxConfig::GetFeature(Feature::OPENGL_COMPOSITING);
+
+ // Check to see hw comp supported
+ if (!gfxConfig::IsEnabled(Feature::HW_COMPOSITING)) {
+ openGLFeature.DisableByDefault(FeatureStatus::Unavailable,
+ "Hardware compositing is disabled",
+ "FEATURE_FAILURE_OPENGL_NEED_HWCOMP"_ns);
+ return;
+ }
+
+#ifdef XP_WIN
+ openGLFeature.SetDefaultFromPref(
+ StaticPrefs::GetPrefName_layers_prefer_opengl(), true,
+ StaticPrefs::GetPrefDefault_layers_prefer_opengl());
+#else
+ openGLFeature.EnableByDefault();
+#endif
+
+ // When layers acceleration is force-enabled, enable it even for blocklisted
+ // devices.
+ if (StaticPrefs::
+ layers_acceleration_force_enabled_AtStartup_DoNotUseDirectly()) {
+ openGLFeature.UserForceEnable("Force-enabled by pref");
+ return;
+ }
+
+ nsCString message;
+ nsCString failureId;
+ if (!IsGfxInfoStatusOkay(nsIGfxInfo::FEATURE_OPENGL_LAYERS, &message,
+ failureId)) {
+ openGLFeature.Disable(FeatureStatus::Blocklisted, message.get(), failureId);
+ }
+}
+
+bool gfxPlatform::IsGfxInfoStatusOkay(int32_t aFeature, nsCString* aOutMessage,
+ nsCString& aFailureId) {
+ nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
+ if (!gfxInfo) {
+ return true;
+ }
+
+ int32_t status;
+ if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(aFeature, aFailureId, &status)) &&
+ status != nsIGfxInfo::FEATURE_STATUS_OK) {
+ aOutMessage->AssignLiteral("#BLOCKLIST_");
+ aOutMessage->AppendASCII(aFailureId.get());
+ return false;
+ }
+
+ return true;
+}