mirror of
				https://github.com/mozilla/gecko-dev.git
				synced 2025-11-04 02:09:05 +02:00 
			
		
		
		
	
		
			
				
	
	
		
			4093 lines
		
	
	
	
		
			140 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			4093 lines
		
	
	
	
		
			140 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/* -*- 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/CanvasRenderThread.h"
 | 
						|
#include "mozilla/gfx/CanvasShutdownManager.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_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/glean/GleanMetrics.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_DARWIN)
 | 
						|
#  include "gfxPlatformMac.h"
 | 
						|
#  include "gfxQuartzSurface.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;
 | 
						|
Maybe<nsTArray<uint8_t>> gCMSOutputProfileData;
 | 
						|
 | 
						|
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)
 | 
						|
    : 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) << ") ";
 | 
						|
  }
 | 
						|
 | 
						|
  nsresult annotated = CrashReporter::RecordAnnotationCString(
 | 
						|
      mCrashCriticalKey, message.str().c_str());
 | 
						|
 | 
						|
  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);
 | 
						|
  PROFILER_MARKER_TEXT("gfx::CriticalError", GRAPHICS, {},
 | 
						|
                       nsDependentCString(aString.c_str()));
 | 
						|
 | 
						|
  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_DARWIN)
 | 
						|
#  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) {
 | 
						|
  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_ASSERT(!gPlatform,
 | 
						|
             "InitChild() should be called before first GetPlatform()");
 | 
						|
  // Make the provided initial ContentDeviceData available to the init
 | 
						|
  // routines.
 | 
						|
  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._0);
 | 
						|
}
 | 
						|
 | 
						|
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_DARWIN)
 | 
						|
    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() {
 | 
						|
  AUTO_PROFILER_MARKER_TEXT("gfxPlatform", GRAPHICS, {},
 | 
						|
                            "gfxPlatform::Init"_ns);
 | 
						|
  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) ",
 | 
						|
                             StaticPrefs::gfx_android_rgb16_force_AtStartup(),
 | 
						|
                             StaticPrefs::gfx_canvas_accelerated());
 | 
						|
    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_DARWIN)
 | 
						|
  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 (XRE_IsParentProcess()) {
 | 
						|
    mozilla::glean::gpu_process::feature_status.Set(
 | 
						|
        gfxConfig::GetFeature(Feature::GPU_PROCESS)
 | 
						|
            .GetStatusAndFailureIdString());
 | 
						|
  }
 | 
						|
 | 
						|
  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);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
static bool IsOsTempDirWritable() {
 | 
						|
  nsCOMPtr<nsIFile> file;
 | 
						|
  nsresult rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(file));
 | 
						|
  NS_ENSURE_SUCCESS(rv, false);
 | 
						|
  bool writable = false;
 | 
						|
  rv = file->IsWritable(&writable);
 | 
						|
  NS_ENSURE_SUCCESS(rv, false);
 | 
						|
  return writable;
 | 
						|
}
 | 
						|
 | 
						|
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();
 | 
						|
 | 
						|
    mozilla::glean::gfx_display::count.Set(screenCount);
 | 
						|
    mozilla::glean::gfx_display::primary_height.Set(rect.Height());
 | 
						|
    mozilla::glean::gfx_display::primary_width.Set(rect.Width());
 | 
						|
 | 
						|
    // Check if any screen known by screenManager supports HDR.
 | 
						|
    bool supportsHDR = false;
 | 
						|
    for (const auto& screen : screenManager.CurrentScreenList()) {
 | 
						|
      supportsHDR |= screen->GetIsHDR();
 | 
						|
    }
 | 
						|
    Telemetry::ScalarSet(Telemetry::ScalarID::GFX_SUPPORTS_HDR, supportsHDR);
 | 
						|
 | 
						|
    bool tmpWritable = IsOsTempDirWritable();
 | 
						|
    Telemetry::ScalarSet(Telemetry::ScalarID::GFX_TMP_WRITABLE, tmpWritable);
 | 
						|
  }
 | 
						|
 | 
						|
  nsString adapterDesc;
 | 
						|
  gfxInfo->GetAdapterDescription(adapterDesc);
 | 
						|
 | 
						|
// Android description is constructed in a way that makes it possible to exceed
 | 
						|
// the metric's length limit.
 | 
						|
#if defined(ANDROID)
 | 
						|
  if (!adapterDesc.IsEmpty()) {
 | 
						|
    adapterDesc.Truncate(99);
 | 
						|
  }
 | 
						|
#endif
 | 
						|
 | 
						|
  mozilla::glean::gfx_adapter_primary::description.Set(
 | 
						|
      NS_ConvertUTF16toUTF8(adapterDesc));
 | 
						|
 | 
						|
  nsString adapterVendorId;
 | 
						|
  gfxInfo->GetAdapterVendorID(adapterVendorId);
 | 
						|
  mozilla::glean::gfx_adapter_primary::vendor_id.Set(
 | 
						|
      NS_ConvertUTF16toUTF8(adapterVendorId));
 | 
						|
 | 
						|
  nsString adapterDeviceId;
 | 
						|
  gfxInfo->GetAdapterDeviceID(adapterDeviceId);
 | 
						|
  mozilla::glean::gfx_adapter_primary::device_id.Set(
 | 
						|
      NS_ConvertUTF16toUTF8(adapterDeviceId));
 | 
						|
 | 
						|
  nsString adapterSubsystemId;
 | 
						|
  gfxInfo->GetAdapterSubsysID(adapterSubsystemId);
 | 
						|
  mozilla::glean::gfx_adapter_primary::subsystem_id.Set(
 | 
						|
      NS_ConvertUTF16toUTF8(adapterSubsystemId));
 | 
						|
 | 
						|
  uint32_t adapterRam = 0;
 | 
						|
  gfxInfo->GetAdapterRAM(&adapterRam);
 | 
						|
  mozilla::glean::gfx_adapter_primary::ram.Set(adapterRam);
 | 
						|
 | 
						|
  nsString adapterDriver;
 | 
						|
  gfxInfo->GetAdapterDriver(adapterDriver);
 | 
						|
  mozilla::glean::gfx_adapter_primary::driver_files.Set(
 | 
						|
      NS_ConvertUTF16toUTF8(adapterDriver));
 | 
						|
 | 
						|
  nsString adapterDriverVendor;
 | 
						|
  gfxInfo->GetAdapterDriverVendor(adapterDriverVendor);
 | 
						|
  mozilla::glean::gfx_adapter_primary::driver_vendor.Set(
 | 
						|
      NS_ConvertUTF16toUTF8(adapterDriverVendor));
 | 
						|
 | 
						|
  nsString adapterDriverVersion;
 | 
						|
  gfxInfo->GetAdapterDriverVersion(adapterDriverVersion);
 | 
						|
  mozilla::glean::gfx_adapter_primary::driver_version.Set(
 | 
						|
      NS_ConvertUTF16toUTF8(adapterDriverVersion));
 | 
						|
 | 
						|
  nsString adapterDriverDate;
 | 
						|
  gfxInfo->GetAdapterDriverDate(adapterDriverDate);
 | 
						|
  mozilla::glean::gfx_adapter_primary::driver_date.Set(
 | 
						|
      NS_ConvertUTF16toUTF8(adapterDriverDate));
 | 
						|
 | 
						|
  mozilla::glean::gfx_status::headless.Set(IsHeadless());
 | 
						|
}
 | 
						|
 | 
						|
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() ||
 | 
						|
                                    gfx::gfxVars::UseAcceleratedCanvas2D());
 | 
						|
}
 | 
						|
 | 
						|
/* 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();
 | 
						|
      wr::RenderThread::Start(GPUProcessManager::Get()->AllocateNamespace());
 | 
						|
      image::ImageMemoryReporter::InitForWebRender();
 | 
						|
    }
 | 
						|
 | 
						|
    layers::CompositorThreadHolder::Start();
 | 
						|
 | 
						|
    if (!gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
 | 
						|
      gfx::CanvasRenderThread::Start();
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
/* static */
 | 
						|
void gfxPlatform::ShutdownLayersIPC() {
 | 
						|
  if (!sLayersIPCIsUp) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
  sLayersIPCIsUp = false;
 | 
						|
 | 
						|
  if (XRE_IsContentProcess()) {
 | 
						|
    gfx::VRManagerChild::ShutDown();
 | 
						|
    gfx::CanvasShutdownManager::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::CanvasShutdownManager::Shutdown();
 | 
						|
    layers::CompositorManagerChild::Shutdown();
 | 
						|
    layers::ImageBridgeChild::ShutDown();
 | 
						|
    // This could be running on either the Compositor thread, the Renderer
 | 
						|
    // thread, or the dedicated CanvasRender thread, so we need to shutdown
 | 
						|
    // before the former two.
 | 
						|
    gfx::CanvasRenderThread::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 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() {
 | 
						|
  // We're only going to set some gfxVars here, which is only possible from
 | 
						|
  // the parent process.
 | 
						|
  if (!XRE_IsParentProcess()) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
 | 
						|
  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;
 | 
						|
  }
 | 
						|
 | 
						|
  int32_t screenDepth;
 | 
						|
  screen->GetColorDepth(&screenDepth);
 | 
						|
  gfxVars::SetPrimaryScreenDepth(screenDepth);
 | 
						|
}
 | 
						|
 | 
						|
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;
 | 
						|
}
 | 
						|
 | 
						|
Maybe<nsTArray<uint8_t>>& gfxPlatform::GetCMSOutputProfileData() {
 | 
						|
  return gCMSOutputProfileData;
 | 
						|
}
 | 
						|
 | 
						|
CMSMode GfxColorManagementMode() {
 | 
						|
  const auto mode = StaticPrefs::gfx_color_management_mode();
 | 
						|
  if (mode >= 0 && mode <= UnderlyingValue(CMSMode::_ENUM_MAX)) {
 | 
						|
    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_DARWIN)
 | 
						|
      !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()) {
 | 
						|
      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();
 | 
						|
 | 
						|
    FeatureState& feature = gfxConfig::GetFeature(Feature::REMOTE_CANVAS);
 | 
						|
    feature.SetDefault(StaticPrefs::gfx_canvas_remote_AtStartup(),
 | 
						|
                       FeatureStatus::Disabled, "Disabled via pref");
 | 
						|
 | 
						|
    if (!gfxConfig::IsEnabled(Feature::GPU_PROCESS) &&
 | 
						|
        !StaticPrefs::gfx_canvas_remote_allow_in_parent_AtStartup()) {
 | 
						|
      feature.Disable(FeatureStatus::UnavailableNoGpuProcess,
 | 
						|
                      "Disabled without GPU process",
 | 
						|
                      "FEATURE_REMOTE_CANVAS_NO_GPU_PROCESS"_ns);
 | 
						|
    }
 | 
						|
 | 
						|
#ifndef XP_WIN
 | 
						|
    gfxConfig::ForceDisable(Feature::REMOTE_CANVAS, FeatureStatus::Blocked,
 | 
						|
                            "Platform not supported",
 | 
						|
                            "FEATURE_REMOTE_CANVAS_NOT_WINDOWS"_ns);
 | 
						|
#endif
 | 
						|
 | 
						|
    gfxVars::SetRemoteCanvasEnabled(feature.IsEnabled());
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
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;
 | 
						|
  }
 | 
						|
 | 
						|
  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();
 | 
						|
}
 | 
						|
 | 
						|
/*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 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();
 | 
						|
 | 
						|
  if (gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
 | 
						|
    gfxVars::SetGPUProcessEnabled(true);
 | 
						|
  }
 | 
						|
 | 
						|
  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::RecordAnnotationBool(
 | 
						|
        CrashReporter::Annotation::IsWebRenderResourcePathOverridden, true);
 | 
						|
  }
 | 
						|
 | 
						|
  UpdateForceSubpixelAAWherePossible();
 | 
						|
 | 
						|
#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK)
 | 
						|
  if (StaticPrefs::gfx_webrender_software_opengl_AtStartup()) {
 | 
						|
    gfxVars::SetAllowSoftwareWebRenderOGL(true);
 | 
						|
  }
 | 
						|
#endif
 | 
						|
 | 
						|
#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 useVideoHwOverlay = false;
 | 
						|
  if (StaticPrefs::gfx_webrender_dcomp_video_hw_overlay_win_AtStartup()) {
 | 
						|
    if (overlaySupported) {
 | 
						|
      useVideoHwOverlay = true;
 | 
						|
    }
 | 
						|
 | 
						|
    if (useVideoHwOverlay &&
 | 
						|
        !StaticPrefs::
 | 
						|
            gfx_webrender_dcomp_video_hw_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_HARDWARE_OVERLAY);
 | 
						|
        feature.DisableByDefault(FeatureStatus::BlockedNoGfxInfo,
 | 
						|
                                 "gfxInfo is broken",
 | 
						|
                                 "FEATURE_FAILURE_WR_NO_GFX_INFO"_ns);
 | 
						|
        useVideoHwOverlay = false;
 | 
						|
      } else {
 | 
						|
        if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
 | 
						|
          FeatureState& feature =
 | 
						|
              gfxConfig::GetFeature(Feature::VIDEO_HARDWARE_OVERLAY);
 | 
						|
          feature.DisableByDefault(FeatureStatus::Blocked,
 | 
						|
                                   "Blocklisted by gfxInfo", failureId);
 | 
						|
          useVideoHwOverlay = false;
 | 
						|
        }
 | 
						|
      }
 | 
						|
    }
 | 
						|
  } else if (overlaySupported) {
 | 
						|
    FeatureState& feature =
 | 
						|
        gfxConfig::GetFeature(Feature::VIDEO_HARDWARE_OVERLAY);
 | 
						|
    feature.DisableByDefault(FeatureStatus::Blocked, "Disabled by pref",
 | 
						|
                             "FEATURE_FAILURE_DISABLED_BY_PREF"_ns);
 | 
						|
  }
 | 
						|
 | 
						|
  if (useVideoHwOverlay) {
 | 
						|
    FeatureState& feature =
 | 
						|
        gfxConfig::GetFeature(Feature::VIDEO_HARDWARE_OVERLAY);
 | 
						|
    feature.EnableByDefault();
 | 
						|
    gfxVars::SetUseWebRenderDCompVideoHwOverlayWin(true);
 | 
						|
  }
 | 
						|
 | 
						|
  bool useVideoSwOverlay = false;
 | 
						|
  if (overlaySupported &&
 | 
						|
      StaticPrefs::gfx_webrender_dcomp_video_sw_overlay_win_AtStartup()) {
 | 
						|
    useVideoSwOverlay = true;
 | 
						|
 | 
						|
    if (useVideoSwOverlay &&
 | 
						|
        !StaticPrefs::
 | 
						|
            gfx_webrender_dcomp_video_sw_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_SOFTWARE_OVERLAY, failureId,
 | 
						|
              &status))) {
 | 
						|
        FeatureState& feature =
 | 
						|
            gfxConfig::GetFeature(Feature::VIDEO_SOFTWARE_OVERLAY);
 | 
						|
        feature.DisableByDefault(FeatureStatus::BlockedNoGfxInfo,
 | 
						|
                                 "gfxInfo is broken",
 | 
						|
                                 "FEATURE_FAILURE_WR_NO_GFX_INFO"_ns);
 | 
						|
        useVideoSwOverlay = false;
 | 
						|
      } else {
 | 
						|
        if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
 | 
						|
          FeatureState& feature =
 | 
						|
              gfxConfig::GetFeature(Feature::VIDEO_SOFTWARE_OVERLAY);
 | 
						|
          feature.DisableByDefault(FeatureStatus::Blocked,
 | 
						|
                                   "Blocklisted by gfxInfo", failureId);
 | 
						|
          useVideoSwOverlay = false;
 | 
						|
        }
 | 
						|
      }
 | 
						|
    }
 | 
						|
  } else if (overlaySupported) {
 | 
						|
    FeatureState& feature =
 | 
						|
        gfxConfig::GetFeature(Feature::VIDEO_SOFTWARE_OVERLAY);
 | 
						|
    feature.DisableByDefault(FeatureStatus::Blocked, "Disabled by pref",
 | 
						|
                             "FEATURE_FAILURE_DISABLED_BY_PREF"_ns);
 | 
						|
  }
 | 
						|
 | 
						|
  if (useVideoSwOverlay) {
 | 
						|
    FeatureState& feature =
 | 
						|
        gfxConfig::GetFeature(Feature::VIDEO_SOFTWARE_OVERLAY);
 | 
						|
    feature.EnableByDefault();
 | 
						|
    gfxVars::SetUseWebRenderDCompVideoSwOverlayWin(true);
 | 
						|
  }
 | 
						|
 | 
						|
  bool useHwVideoZeroCopy = false;
 | 
						|
  if (StaticPrefs::media_wmf_zero_copy_nv12_textures_AtStartup()) {
 | 
						|
    if (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
 | 
						|
 | 
						|
  bool allowOverlayVpAutoHDR = false;
 | 
						|
  if (StaticPrefs::gfx_webrender_overlay_vp_auto_hdr_AtStartup()) {
 | 
						|
    allowOverlayVpAutoHDR = true;
 | 
						|
 | 
						|
    nsCString failureId;
 | 
						|
    int32_t status;
 | 
						|
    const nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
 | 
						|
    if (NS_FAILED(gfxInfo->GetFeatureStatus(
 | 
						|
            nsIGfxInfo::FEATURE_OVERLAY_VP_AUTO_HDR, failureId, &status))) {
 | 
						|
      allowOverlayVpAutoHDR = false;
 | 
						|
    } else {
 | 
						|
      if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
 | 
						|
        allowOverlayVpAutoHDR = false;
 | 
						|
      }
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  if (allowOverlayVpAutoHDR) {
 | 
						|
    gfxVars::SetWebRenderOverlayVpAutoHDR(true);
 | 
						|
  }
 | 
						|
 | 
						|
  bool allowOverlayVpSuperResolution = false;
 | 
						|
  if (StaticPrefs::gfx_webrender_overlay_vp_super_resolution_AtStartup()) {
 | 
						|
    allowOverlayVpSuperResolution = true;
 | 
						|
 | 
						|
    nsCString failureId;
 | 
						|
    int32_t status;
 | 
						|
    const nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
 | 
						|
    if (NS_FAILED(gfxInfo->GetFeatureStatus(
 | 
						|
            nsIGfxInfo::FEATURE_OVERLAY_VP_SUPER_RESOLUTION, failureId,
 | 
						|
            &status))) {
 | 
						|
      allowOverlayVpSuperResolution = false;
 | 
						|
    } else {
 | 
						|
      if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
 | 
						|
        allowOverlayVpSuperResolution = false;
 | 
						|
      }
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  if (allowOverlayVpSuperResolution) {
 | 
						|
    gfxVars::SetWebRenderOverlayVpSuperResolution(true);
 | 
						|
  }
 | 
						|
 | 
						|
  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 =
 | 
						|
      (threadsafeGL && !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 (kIsLinux) {
 | 
						|
    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 gfx.webgpu.ignore-blocklist is "
 | 
						|
          "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());
 | 
						|
 | 
						|
#if XP_WIN
 | 
						|
  if (IsWin10CreatorsUpdateOrLater() &&
 | 
						|
      StaticPrefs::dom_webgpu_allow_present_without_readback()) {
 | 
						|
    gfxVars::SetAllowWebGPUPresentWithoutReadback(true);
 | 
						|
  }
 | 
						|
#endif
 | 
						|
}
 | 
						|
 | 
						|
#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);
 | 
						|
  }
 | 
						|
 | 
						|
  if (StaticPrefs::gfx_canvas_remote_worker_threads_AtStartup() != 0) {
 | 
						|
    feature.ForceDisable(FeatureStatus::Failed,
 | 
						|
                         "Disabled with non-zero canvas worker threads",
 | 
						|
                         "FEATURE_FAILURE_DISABLE_BY_CANVAS_WORKER_THREADS"_ns);
 | 
						|
  }
 | 
						|
 | 
						|
  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.", RFPTarget::FrameRate)) {
 | 
						|
    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();
 | 
						|
}
 | 
						|
 | 
						|
/*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()) {
 | 
						|
    nsDependentCString compositor(GetLayersBackendName(mCompositorBackend));
 | 
						|
    mozilla::glean::gfx_status::compositor.Set(compositor);
 | 
						|
 | 
						|
    nsCString geckoVersion;
 | 
						|
    nsCOMPtr<nsIXULAppInfo> app = do_GetService("@mozilla.org/xre/app-info;1");
 | 
						|
    if (app) {
 | 
						|
      app->GetVersion(geckoVersion);
 | 
						|
    }
 | 
						|
    mozilla::glean::gfx_status::last_compositor_gecko_version.Set(geckoVersion);
 | 
						|
 | 
						|
    mozilla::glean::gfx_feature::webrender.Set(
 | 
						|
        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 (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 (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
 | 
						|
 | 
						|
#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK)
 | 
						|
  // Before we disable OpenGL and HW_COMPOSITING, we should check if we can
 | 
						|
  // fallback from WebRender to Software WebRender + OpenGL compositing.
 | 
						|
  if (swglFallbackAllowed && gfxVars::AllowSoftwareWebRenderOGL() &&
 | 
						|
      gfxConfig::IsEnabled(Feature::OPENGL_COMPOSITING) &&
 | 
						|
      !gfxVars::UseSoftwareWebRender()) {
 | 
						|
    // Fallback to Software WebRender + OpenGL compositing.
 | 
						|
    gfxCriticalNote << "Fallback WR to SW-WR + OpenGL";
 | 
						|
    gfxVars::SetUseSoftwareWebRender(true);
 | 
						|
    return true;
 | 
						|
  }
 | 
						|
#endif
 | 
						|
  // Android does not want to fallback to SW-WR.
 | 
						|
#ifdef MOZ_WIDGET_GTK
 | 
						|
  if (swglFallbackAllowed && gfxVars::AllowSoftwareWebRenderOGL() &&
 | 
						|
      gfxVars::UseSoftwareWebRender()) {
 | 
						|
    // Fallback from Software WebRender + OpenGL to Software WebRender.
 | 
						|
    gfxCriticalNote << "Fallback SW-WR + OpenGL to SW-WR";
 | 
						|
    gfxVars::SetAllowSoftwareWebRenderOGL(false);
 | 
						|
    return true;
 | 
						|
  }
 | 
						|
#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() {
 | 
						|
  if (gfxVars::RemoteCanvasEnabled() &&
 | 
						|
      !StaticPrefs::gfx_canvas_remote_allow_in_parent_AtStartup()) {
 | 
						|
    gfxConfig::Disable(
 | 
						|
        Feature::REMOTE_CANVAS, FeatureStatus::UnavailableNoGpuProcess,
 | 
						|
        "Disabled by GPU process disabled",
 | 
						|
        "FEATURE_REMOTE_CANVAS_DISABLED_BY_GPU_PROCESS_DISABLED"_ns);
 | 
						|
    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();
 | 
						|
  // 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());
 | 
						|
  gfx::CanvasRenderThread::Start();
 | 
						|
  image::ImageMemoryReporter::InitForWebRender();
 | 
						|
}
 | 
						|
 | 
						|
/* static */ void gfxPlatform::DisableRemoteCanvas() {
 | 
						|
  if (gfxVars::RemoteCanvasEnabled()) {
 | 
						|
    gfxConfig::ForceDisable(Feature::REMOTE_CANVAS, FeatureStatus::Failed,
 | 
						|
                            "Disabled by runtime error",
 | 
						|
                            "FEATURE_REMOTE_CANVAS_RUNTIME_ERROR"_ns);
 | 
						|
    gfxVars::SetRemoteCanvasEnabled(false);
 | 
						|
  }
 | 
						|
  if (gfxVars::UseAcceleratedCanvas2D()) {
 | 
						|
    gfxConfig::ForceDisable(Feature::ACCELERATED_CANVAS2D,
 | 
						|
                            FeatureStatus::Failed, "Disabled by runtime error",
 | 
						|
                            "FEATURE_ACCELERATED_CANVAS2D_RUNTIME_ERROR"_ns);
 | 
						|
    gfxVars::SetUseAcceleratedCanvas2D(false);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void gfxPlatform::ImportCachedContentDeviceData() {
 | 
						|
  MOZ_ASSERT(XRE_IsContentProcess());
 | 
						|
 | 
						|
  // Import the content device data if we've got some waiting.
 | 
						|
  if (!gContentDeviceInitData) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
 | 
						|
  ImportContentDeviceData(*gContentDeviceInitData);
 | 
						|
  gContentDeviceInitData = nullptr;
 | 
						|
}
 | 
						|
 | 
						|
void gfxPlatform::ImportContentDeviceData(
 | 
						|
    const mozilla::gfx::ContentDeviceData& aData) {
 | 
						|
  MOZ_ASSERT(XRE_IsContentProcess());
 | 
						|
 | 
						|
  const DevicePrefs& prefs = aData.prefs();
 | 
						|
  gfxConfig::Inherit(Feature::HW_COMPOSITING, prefs.hwCompositing());
 | 
						|
 | 
						|
  // We don't inherit Feature::OPENGL_COMPOSITING here, because platforms
 | 
						|
  // will handle that (without imported data from the parent) in
 | 
						|
  // InitOpenGLConfig.
 | 
						|
 | 
						|
  gCMSOutputProfileData = Some(aData.cmsOutputProfileData().Clone());
 | 
						|
}
 | 
						|
 | 
						|
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;
 | 
						|
}
 |