gecko-dev/gfx/thebes/gfxPlatform.cpp

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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/webrender/RenderThread.h"
#include "mozilla/webrender/WebRenderAPI.h"
#include "mozilla/webrender/webrender_ffi.h"
#include "mozilla/gfx/BuildConstants.h"
#include "mozilla/gfx/gfxConfigManager.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/gfx/GPUProcessManager.h"
#include "mozilla/gfx/GraphicsMessages.h"
#include "mozilla/gfx/CanvasManagerChild.h"
#include "mozilla/gfx/CanvasManagerParent.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/StaticPrefs_accessibility.h"
#include "mozilla/StaticPrefs_apz.h"
#include "mozilla/StaticPrefs_gfx.h"
#include "mozilla/StaticPrefs_layout.h"
#include "mozilla/StaticPrefs_layers.h"
#include "mozilla/StaticPrefs_media.h"
#include "mozilla/StaticPrefs_webgl.h"
#include "mozilla/StaticPrefs_widget.h"
#include "mozilla/Telemetry.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/Unused.h"
#include "mozilla/IntegerPrintfMacros.h"
#include "mozilla/Base64.h"
#include "mozilla/Logging.h"
#include "mozilla/Components.h"
#include "nsAppRunner.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsCSSProps.h"
#include "gfxCrashReporterUtils.h"
#include "gfxPlatform.h"
#include "gfxBlur.h"
#include "gfxEnv.h"
#include "gfxTextRun.h"
#include "gfxUserFontSet.h"
#include "gfxConfig.h"
#include "GfxDriverInfo.h"
#include "VRProcessManager.h"
#include "VRThread.h"
#ifdef XP_WIN
# include <process.h>
# define getpid _getpid
#else
# include <unistd.h>
#endif
#include "nsXULAppAPI.h"
#include "nsIXULAppInfo.h"
#include "nsDirectoryServiceUtils.h"
#include "nsDirectoryServiceDefs.h"
#if defined(XP_WIN)
# include "gfxWindowsPlatform.h"
# include "mozilla/widget/WinWindowOcclusionTracker.h"
#elif defined(XP_MACOSX)
# include "gfxPlatformMac.h"
# include "gfxQuartzSurface.h"
# include "nsCocoaFeatures.h"
#elif defined(MOZ_WIDGET_GTK)
# include "gfxPlatformGtk.h"
#elif defined(ANDROID)
# include "gfxAndroidPlatform.h"
#endif
#if defined(MOZ_WIDGET_ANDROID)
# include "mozilla/jni/Utils.h" // for IsFennec
#endif
#ifdef XP_WIN
# include "mozilla/WindowsVersion.h"
# include "WinUtils.h"
#endif
#include "nsGkAtoms.h"
#include "gfxPlatformFontList.h"
#include "gfxContext.h"
#include "gfxImageSurface.h"
#include "nsUnicodeProperties.h"
#include "harfbuzz/hb.h"
#include "gfxGraphiteShaper.h"
#include "gfx2DGlue.h"
#include "gfxGradientCache.h"
#include "gfxUtils.h" // for NextPowerOfTwo
#include "gfxFontMissingGlyphs.h"
#include "nsExceptionHandler.h"
#include "nsServiceManagerUtils.h"
#include "nsTArray.h"
#include "nsIObserverService.h"
#include "nsIScreenManager.h"
#include "MainThreadUtils.h"
#include "nsWeakReference.h"
#include "cairo.h"
#include "qcms.h"
#include "imgITools.h"
#include "plstr.h"
#include "nsCRT.h"
#include "GLContext.h"
#include "GLContextProvider.h"
#include "mozilla/gfx/Logging.h"
#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;
static int32_t gLastUsedFrameRate = -1;
const ContentDeviceData* gContentDeviceInitData = nullptr;
static Mutex* gGfxPlatformPrefsLock = nullptr;
Atomic<bool, MemoryOrdering::ReleaseAcquire> gfxPlatform::gCMSInitialized;
CMSMode gfxPlatform::gCMSMode = CMSMode::Off;
// These two may point to the same profile
qcms_profile* gfxPlatform::gCMSOutputProfile = nullptr;
qcms_profile* gfxPlatform::gCMSsRGBProfile = nullptr;
qcms_transform* gfxPlatform::gCMSRGBTransform = nullptr;
qcms_transform* gfxPlatform::gCMSInverseRGBTransform = nullptr;
qcms_transform* gfxPlatform::gCMSRGBATransform = nullptr;
qcms_transform* gfxPlatform::gCMSBGRATransform = nullptr;
/// This override of the LogForwarder, initially used for the critical graphics
/// errors, is sending the log to the crash annotations as well, but only
/// if the capacity set with the method below is >= 2. We always retain the
/// very first critical message, and the latest capacity-1 messages are
/// rotated through. Note that we don't expect the total number of times
/// this gets called to be large - it is meant for critical errors only.
class CrashStatsLogForwarder : public mozilla::gfx::LogForwarder {
public:
explicit CrashStatsLogForwarder(CrashReporter::Annotation aKey);
void Log(const std::string& aString) override;
void CrashAction(LogReason aReason) override;
bool UpdateStringsVector(const std::string& aString) override;
LoggingRecord LoggingRecordCopy() override;
void SetCircularBufferSize(uint32_t aCapacity);
private:
// Helper for the Log()
void UpdateCrashReport();
private:
LoggingRecord mBuffer;
CrashReporter::Annotation mCrashCriticalKey;
uint32_t mMaxCapacity;
int32_t mIndex;
Mutex mMutex;
};
CrashStatsLogForwarder::CrashStatsLogForwarder(CrashReporter::Annotation aKey)
: mBuffer(),
mCrashCriticalKey(aKey),
mMaxCapacity(0),
mIndex(-1),
mMutex("CrashStatsLogForwarder") {}
void CrashStatsLogForwarder::SetCircularBufferSize(uint32_t aCapacity) {
MutexAutoLock lock(mMutex);
mMaxCapacity = aCapacity;
mBuffer.reserve(static_cast<size_t>(aCapacity));
}
LoggingRecord CrashStatsLogForwarder::LoggingRecordCopy() {
MutexAutoLock lock(mMutex);
return mBuffer;
}
bool CrashStatsLogForwarder::UpdateStringsVector(const std::string& aString) {
// We want at least the first one and the last one. Otherwise, no point.
if (mMaxCapacity < 2) {
return false;
}
mIndex += 1;
MOZ_ASSERT(mIndex >= 0);
// index will count 0, 1, 2, ..., max-1, 1, 2, ..., max-1, 1, 2, ...
int32_t index = mIndex ? (mIndex - 1) % (mMaxCapacity - 1) + 1 : 0;
MOZ_ASSERT(index >= 0 && index < (int32_t)mMaxCapacity);
MOZ_ASSERT(index <= mIndex && index <= (int32_t)mBuffer.size());
double tStamp = (TimeStamp::NowLoRes() - TimeStamp::ProcessCreation())
.ToSecondsSigDigits();
// Checking for index >= mBuffer.size(), rather than index == mBuffer.size()
// just out of paranoia, but we know index <= mBuffer.size().
LoggingRecordEntry newEntry(mIndex, aString, tStamp);
if (index >= static_cast<int32_t>(mBuffer.size())) {
mBuffer.push_back(newEntry);
} else {
mBuffer[index] = newEntry;
}
return true;
}
void CrashStatsLogForwarder::UpdateCrashReport() {
std::stringstream message;
std::string logAnnotation;
switch (XRE_GetProcessType()) {
case GeckoProcessType_Default:
logAnnotation = "|[";
break;
case GeckoProcessType_Content:
logAnnotation = "|[C";
break;
case GeckoProcessType_GPU:
logAnnotation = "|[G";
break;
default:
logAnnotation = "|[X";
break;
}
for (auto& it : mBuffer) {
message << logAnnotation << Get<0>(it) << "]" << Get<1>(it)
<< " (t=" << Get<2>(it) << ") ";
}
nsCString reportString(message.str().c_str());
nsresult annotated =
CrashReporter::AnnotateCrashReport(mCrashCriticalKey, reportString);
if (annotated != NS_OK) {
printf("Crash Annotation %s: %s",
CrashReporter::AnnotationToString(mCrashCriticalKey),
message.str().c_str());
}
}
class LogForwarderEvent : public Runnable {
virtual ~LogForwarderEvent() = default;
public:
NS_INLINE_DECL_REFCOUNTING_INHERITED(LogForwarderEvent, Runnable)
explicit LogForwarderEvent(const nsCString& aMessage)
: mozilla::Runnable("LogForwarderEvent"), mMessage(aMessage) {}
NS_IMETHOD Run() override {
MOZ_ASSERT(NS_IsMainThread() &&
(XRE_IsContentProcess() || XRE_IsGPUProcess()));
if (XRE_IsContentProcess()) {
dom::ContentChild* cc = dom::ContentChild::GetSingleton();
Unused << cc->SendGraphicsError(mMessage);
} else if (XRE_IsGPUProcess()) {
GPUParent* gp = GPUParent::GetSingleton();
Unused << gp->SendGraphicsError(mMessage);
}
return NS_OK;
}
protected:
nsCString mMessage;
};
void CrashStatsLogForwarder::Log(const std::string& aString) {
MutexAutoLock lock(mMutex);
if (UpdateStringsVector(aString)) {
UpdateCrashReport();
}
// Add it to the parent strings
if (!XRE_IsParentProcess()) {
nsCString stringToSend(aString.c_str());
if (NS_IsMainThread()) {
if (XRE_IsContentProcess()) {
dom::ContentChild* cc = dom::ContentChild::GetSingleton();
Unused << cc->SendGraphicsError(stringToSend);
} else if (XRE_IsGPUProcess()) {
GPUParent* gp = GPUParent::GetSingleton();
Unused << gp->SendGraphicsError(stringToSend);
}
} else {
nsCOMPtr<nsIRunnable> r1 = new LogForwarderEvent(stringToSend);
NS_DispatchToMainThread(r1);
}
}
}
class CrashTelemetryEvent : public Runnable {
virtual ~CrashTelemetryEvent() = default;
public:
NS_INLINE_DECL_REFCOUNTING_INHERITED(CrashTelemetryEvent, Runnable)
explicit CrashTelemetryEvent(uint32_t aReason)
: mozilla::Runnable("CrashTelemetryEvent"), mReason(aReason) {}
NS_IMETHOD Run() override {
MOZ_ASSERT(NS_IsMainThread());
Telemetry::Accumulate(Telemetry::GFX_CRASH, mReason);
return NS_OK;
}
protected:
uint32_t mReason;
};
void CrashStatsLogForwarder::CrashAction(LogReason aReason) {
#ifndef RELEASE_OR_BETA
// Non-release builds crash by default, but will use telemetry
// if this environment variable is present.
static bool useTelemetry = gfxEnv::GfxDevCrashTelemetry();
#else
// Release builds use telemetry by default, but will crash instead
// if this environment variable is present.
static bool useTelemetry = !gfxEnv::GfxDevCrashMozCrash();
#endif
if (useTelemetry) {
// The callers need to assure that aReason is in the range
// that the telemetry call below supports.
if (NS_IsMainThread()) {
Telemetry::Accumulate(Telemetry::GFX_CRASH, (uint32_t)aReason);
} else {
nsCOMPtr<nsIRunnable> r1 = new CrashTelemetryEvent((uint32_t)aReason);
NS_DispatchToMainThread(r1);
}
} else {
// ignoring aReason, we can get the information we need from the stack
MOZ_CRASH("GFX_CRASH");
}
}
#define GFX_DOWNLOADABLE_FONTS_ENABLED "gfx.downloadable_fonts.enabled"
#define GFX_PREF_FALLBACK_USE_CMAPS \
"gfx.font_rendering.fallback.always_use_cmaps"
#define GFX_PREF_OPENTYPE_SVG "gfx.font_rendering.opentype_svg.enabled"
#define GFX_PREF_WORD_CACHE_CHARLIMIT "gfx.font_rendering.wordcache.charlimit"
#define GFX_PREF_WORD_CACHE_MAXENTRIES "gfx.font_rendering.wordcache.maxentries"
#define GFX_PREF_GRAPHITE_SHAPING "gfx.font_rendering.graphite.enabled"
#if defined(XP_MACOSX)
# define GFX_PREF_CORETEXT_SHAPING "gfx.font_rendering.coretext.enabled"
#endif
#define BIDI_NUMERAL_PREF "bidi.numeral"
#define FONT_VARIATIONS_PREF "layout.css.font-variations.enabled"
static const char* kObservedPrefs[] = {"gfx.downloadable_fonts.",
"gfx.font_rendering.", BIDI_NUMERAL_PREF,
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()
: mHasVariationFontSupport(false),
mAzureCanvasBackendCollector(this, &gfxPlatform::GetAzureBackendInfo),
mApzSupportCollector(this, &gfxPlatform::GetApzSupportInfo),
mFrameStatsCollector(this, &gfxPlatform::GetFrameStats),
mCMSInfoCollector(this, &gfxPlatform::GetCMSSupportInfo),
mDisplayInfoCollector(this, &gfxPlatform::GetDisplayInfo),
mCompositorBackend(layers::LayersBackend::LAYERS_NONE),
mScreenDepth(0) {
mAllowDownloadableFonts = UNINITIALIZED_VALUE;
mFallbackUsesCmaps = UNINITIALIZED_VALUE;
mWordCacheCharLimit = UNINITIALIZED_VALUE;
mWordCacheMaxEntries = UNINITIALIZED_VALUE;
mGraphiteShapingEnabled = UNINITIALIZED_VALUE;
mOpenTypeSVGEnabled = UNINITIALIZED_VALUE;
mBidiNumeralOption = UNINITIALIZED_VALUE;
InitBackendPrefs(GetBackendPrefs());
VRManager::ManagerInit();
}
gfxPlatform* gfxPlatform::GetPlatform() {
if (!gPlatform) {
MOZ_RELEASE_ASSERT(!XRE_IsContentProcess(),
"Content Process should have called InitChild() before "
"first GetPlatform()");
Init();
}
return gPlatform;
}
bool gfxPlatform::Initialized() { return !!gPlatform; }
/* static */
void gfxPlatform::InitChild(const ContentDeviceData& aData) {
MOZ_ASSERT(XRE_IsContentProcess());
MOZ_RELEASE_ASSERT(!gPlatform,
"InitChild() should be called before first GetPlatform()");
// Make the provided initial ContentDeviceData available to the init
// routines, so they don't have to do a sync request from the parent.
gContentDeviceInitData = &aData;
Init();
gContentDeviceInitData = nullptr;
}
#define WR_DEBUG_PREF "gfx.webrender.debug"
static void SwapIntervalPrefChangeCallback(const char* aPrefName, void*) {
bool egl = Preferences::GetBool("gfx.swap-interval.egl", false);
bool glx = Preferences::GetBool("gfx.swap-interval.glx", false);
gfxVars::SetSwapIntervalEGL(egl);
gfxVars::SetSwapIntervalGLX(glx);
}
static void WebRendeProfilerUIPrefChangeCallback(const char* aPrefName, void*) {
nsCString uiString;
if (NS_SUCCEEDED(Preferences::GetCString("gfx.webrender.debug.profiler-ui",
uiString))) {
gfxVars::SetWebRenderProfilerUI(uiString);
}
}
// List of boolean dynamic parameter for WebRender.
//
// The parameters in this list are:
// - The pref name.
// - The BoolParameter enum variant (see webrender_api/src/lib.rs)
// - A default value.
#define WR_BOOL_PARAMETER_LIST(_) \
_("gfx.webrender.batched-texture-uploads", \
wr::BoolParameter::BatchedUploads, true) \
_("gfx.webrender.draw-calls-for-texture-copy", \
wr::BoolParameter::DrawCallsForTextureCopy, true) \
_("gfx.webrender.pbo-uploads", wr::BoolParameter::PboUploads, true) \
_("gfx.webrender.multithreading", wr::BoolParameter::Multithreading, true)
static void WebRenderBoolParameterChangeCallback(const char*, void*) {
uint32_t bits = 0;
#define WR_BOOL_PARAMETER(name, key, default_val) \
if (Preferences::GetBool(name, default_val)) { \
bits |= 1 << (uint32_t)key; \
}
WR_BOOL_PARAMETER_LIST(WR_BOOL_PARAMETER)
#undef WR_BOOL_PARAMETER
gfx::gfxVars::SetWebRenderBoolParameters(bits);
}
static void RegisterWebRenderBoolParamCallback() {
#define WR_BOOL_PARAMETER(name, _key, _default_val) \
Preferences::RegisterCallback(WebRenderBoolParameterChangeCallback, name);
WR_BOOL_PARAMETER_LIST(WR_BOOL_PARAMETER)
#undef WR_BOOL_PARAMETER
WebRenderBoolParameterChangeCallback(nullptr, nullptr);
}
static void WebRenderDebugPrefChangeCallback(const char* aPrefName, void*) {
wr::DebugFlags flags{0};
#define GFX_WEBRENDER_DEBUG(suffix, bit) \
if (Preferences::GetBool(WR_DEBUG_PREF suffix, false)) { \
flags |= (bit); \
}
GFX_WEBRENDER_DEBUG(".profiler", wr::DebugFlags::PROFILER_DBG)
GFX_WEBRENDER_DEBUG(".render-targets", wr::DebugFlags::RENDER_TARGET_DBG)
GFX_WEBRENDER_DEBUG(".texture-cache", wr::DebugFlags::TEXTURE_CACHE_DBG)
GFX_WEBRENDER_DEBUG(".gpu-time-queries", wr::DebugFlags::GPU_TIME_QUERIES)
GFX_WEBRENDER_DEBUG(".gpu-sample-queries", wr::DebugFlags::GPU_SAMPLE_QUERIES)
GFX_WEBRENDER_DEBUG(".disable-batching", wr::DebugFlags::DISABLE_BATCHING)
GFX_WEBRENDER_DEBUG(".epochs", wr::DebugFlags::EPOCHS)
GFX_WEBRENDER_DEBUG(".smart-profiler", wr::DebugFlags::SMART_PROFILER)
GFX_WEBRENDER_DEBUG(".echo-driver-messages",
wr::DebugFlags::ECHO_DRIVER_MESSAGES)
GFX_WEBRENDER_DEBUG(".show-overdraw", wr::DebugFlags::SHOW_OVERDRAW)
GFX_WEBRENDER_DEBUG(".gpu-cache", wr::DebugFlags::GPU_CACHE_DBG)
GFX_WEBRENDER_DEBUG(".texture-cache.clear-evicted",
wr::DebugFlags::TEXTURE_CACHE_DBG_CLEAR_EVICTED)
GFX_WEBRENDER_DEBUG(".picture-caching", wr::DebugFlags::PICTURE_CACHING_DBG)
GFX_WEBRENDER_DEBUG(".force-picture-invalidation",
wr::DebugFlags::FORCE_PICTURE_INVALIDATION)
GFX_WEBRENDER_DEBUG(".primitives", wr::DebugFlags::PRIMITIVE_DBG)
// Bit 18 is for the zoom display, which requires the mouse position and thus
// currently only works in wrench.
GFX_WEBRENDER_DEBUG(".small-screen", wr::DebugFlags::SMALL_SCREEN)
GFX_WEBRENDER_DEBUG(".disable-opaque-pass",
wr::DebugFlags::DISABLE_OPAQUE_PASS)
GFX_WEBRENDER_DEBUG(".disable-alpha-pass", wr::DebugFlags::DISABLE_ALPHA_PASS)
GFX_WEBRENDER_DEBUG(".disable-clip-masks", wr::DebugFlags::DISABLE_CLIP_MASKS)
GFX_WEBRENDER_DEBUG(".disable-text-prims", wr::DebugFlags::DISABLE_TEXT_PRIMS)
GFX_WEBRENDER_DEBUG(".disable-gradient-prims",
wr::DebugFlags::DISABLE_GRADIENT_PRIMS)
GFX_WEBRENDER_DEBUG(".obscure-images", wr::DebugFlags::OBSCURE_IMAGES)
GFX_WEBRENDER_DEBUG(".glyph-flashing", wr::DebugFlags::GLYPH_FLASHING)
GFX_WEBRENDER_DEBUG(".capture-profiler", wr::DebugFlags::PROFILER_CAPTURE)
#undef GFX_WEBRENDER_DEBUG
gfx::gfxVars::SetWebRenderDebugFlags(flags.bits);
}
static void WebRenderQualityPrefChangeCallback(const char* aPref, void*) {
gfxPlatform::GetPlatform()->UpdateForceSubpixelAAWherePossible();
}
static void WebRenderBatchingPrefChangeCallback(const char* aPrefName, void*) {
uint32_t count = Preferences::GetUint(
StaticPrefs::GetPrefName_gfx_webrender_batching_lookback(), 10);
gfx::gfxVars::SetWebRenderBatchingLookback(count);
}
static void WebRenderBlobTileSizePrefChangeCallback(const char* aPrefName,
void*) {
uint32_t tileSize = Preferences::GetUint(
StaticPrefs::GetPrefName_gfx_webrender_blob_tile_size(), 256);
gfx::gfxVars::SetWebRenderBlobTileSize(tileSize);
}
static void WebRenderUploadThresholdPrefChangeCallback(const char* aPrefName,
void*) {
int value = Preferences::GetInt(
StaticPrefs::GetPrefName_gfx_webrender_batched_upload_threshold(),
512 * 512);
gfxVars::SetWebRenderBatchedUploadThreshold(value);
}
static uint32_t GetSkiaGlyphCacheSize() {
// Only increase font cache size on non-android to save memory.
#if !defined(MOZ_WIDGET_ANDROID)
// 10mb as the default pref cache size on desktop due to talos perf tweaking.
// Chromium uses 20mb and skia default uses 2mb.
// We don't need to change the font cache count since we usually
// cache thrash due to asian character sets in talos.
// Only increase memory on the content process
uint32_t cacheSize =
StaticPrefs::gfx_content_skia_font_cache_size_AtStartup() * 1024 * 1024;
if (mozilla::BrowserTabsRemoteAutostart()) {
return XRE_IsContentProcess() ? cacheSize : kDefaultGlyphCacheSize;
}
return cacheSize;
#else
return kDefaultGlyphCacheSize;
#endif // MOZ_WIDGET_ANDROID
}
class WebRenderMemoryReporter final : public nsIMemoryReporter {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIMEMORYREPORTER
private:
~WebRenderMemoryReporter() = default;
};
// Memory reporter for WebRender.
//
// The reporting within WebRender is manual and incomplete. We could do a much
// more thorough job by depending on the malloc_size_of crate, but integrating
// that into WebRender is tricky [1].
//
// So the idea is to start with manual reporting for the large allocations
// detected by DMD, and see how much that can cover in practice (which may
// require a few rounds of iteration). If that approach turns out to be
// fundamentally insufficient, we can either duplicate more of the
// malloc_size_of functionality in WebRender, or deal with the complexity of a
// gecko-only crate dependency.
//
// [1] See https://bugzilla.mozilla.org/show_bug.cgi?id=1480293#c1
struct WebRenderMemoryReporterHelper {
WebRenderMemoryReporterHelper(nsIHandleReportCallback* aCallback,
nsISupports* aData)
: mCallback(aCallback), mData(aData) {}
nsCOMPtr<nsIHandleReportCallback> mCallback;
nsCOMPtr<nsISupports> mData;
void Report(size_t aBytes, const char* aName) const {
nsPrintfCString path("explicit/gfx/webrender/%s", aName);
nsCString desc("CPU heap memory used by WebRender"_ns);
ReportInternal(aBytes, path, desc, nsIMemoryReporter::KIND_HEAP);
}
void ReportTexture(size_t aBytes, const char* aName) const {
nsPrintfCString path("gfx/webrender/textures/%s", aName);
nsCString desc("GPU texture memory used by WebRender"_ns);
ReportInternal(aBytes, path, desc, nsIMemoryReporter::KIND_OTHER);
}
void ReportTotalGPUBytes(size_t aBytes) const {
nsCString path("gfx/webrender/total-gpu-bytes"_ns);
nsCString desc(nsLiteralCString(
"Total GPU bytes used by WebRender (should match textures/ sum)"));
ReportInternal(aBytes, path, desc, nsIMemoryReporter::KIND_OTHER);
}
void ReportInternal(size_t aBytes, nsACString& aPath, nsACString& aDesc,
int32_t aKind) const {
// Generally, memory reporters pass the empty string as the process name to
// indicate "current process". However, if we're using a GPU process, the
// measurements will actually take place in that process, and it's easier to
// just note that here rather than trying to invoke the memory reporter in
// the GPU process.
nsAutoCString processName;
if (gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
GPUParent::GetGPUProcessName(processName);
}
mCallback->Callback(processName, aPath, aKind,
nsIMemoryReporter::UNITS_BYTES, aBytes, aDesc, mData);
}
};
static void FinishAsyncMemoryReport() {
nsCOMPtr<nsIMemoryReporterManager> imgr =
do_GetService("@mozilla.org/memory-reporter-manager;1");
if (imgr) {
imgr->EndReport();
}
}
// clang-format off
// (For some reason, clang-format gets the second macro right, but totally mangles the first).
#define REPORT_INTERNER(id) \
helper.Report(aReport.interning.interners.id, \
"interning/" #id "/interners");
// clang-format on
#define REPORT_DATA_STORE(id) \
helper.Report(aReport.interning.data_stores.id, \
"interning/" #id "/data-stores");
NS_IMPL_ISUPPORTS(WebRenderMemoryReporter, nsIMemoryReporter)
NS_IMETHODIMP
WebRenderMemoryReporter::CollectReports(nsIHandleReportCallback* aHandleReport,
nsISupports* aData, bool aAnonymize) {
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(NS_IsMainThread());
layers::CompositorManagerChild* manager =
CompositorManagerChild::GetInstance();
if (!manager) {
FinishAsyncMemoryReport();
return NS_OK;
}
WebRenderMemoryReporterHelper helper(aHandleReport, aData);
manager->SendReportMemory(
[=](wr::MemoryReport aReport) {
// CPU Memory.
helper.Report(aReport.clip_stores, "clip-stores");
helper.Report(aReport.gpu_cache_metadata, "gpu-cache/metadata");
helper.Report(aReport.gpu_cache_cpu_mirror, "gpu-cache/cpu-mirror");
helper.Report(aReport.render_tasks, "render-tasks");
helper.Report(aReport.hit_testers, "hit-testers");
helper.Report(aReport.fonts, "resource-cache/fonts");
helper.Report(aReport.weak_fonts, "resource-cache/weak-fonts");
helper.Report(aReport.images, "resource-cache/images");
helper.Report(aReport.rasterized_blobs,
"resource-cache/rasterized-blobs");
helper.Report(aReport.texture_cache_structures,
"texture-cache/structures");
helper.Report(aReport.shader_cache, "shader-cache");
helper.Report(aReport.display_list, "display-list");
helper.Report(aReport.swgl, "swgl");
helper.Report(aReport.upload_staging_memory, "upload-stagin-memory");
WEBRENDER_FOR_EACH_INTERNER(REPORT_INTERNER);
WEBRENDER_FOR_EACH_INTERNER(REPORT_DATA_STORE);
// GPU Memory.
helper.ReportTexture(aReport.gpu_cache_textures, "gpu-cache");
helper.ReportTexture(aReport.vertex_data_textures, "vertex-data");
helper.ReportTexture(aReport.render_target_textures, "render-targets");
helper.ReportTexture(aReport.atlas_textures, "texture-cache/atlas");
helper.ReportTexture(aReport.standalone_textures,
"texture-cache/standalone");
helper.ReportTexture(aReport.picture_tile_textures,
"texture-cache/picture-tiles");
helper.ReportTexture(aReport.render_target_textures,
"texture-cache/render-targets");
helper.ReportTexture(aReport.depth_target_textures, "depth-targets");
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
static void FrameRatePrefChanged(const char* aPref, void*) {
int32_t newRate = gfxPlatform::ForceSoftwareVsync()
? gfxPlatform::GetSoftwareVsyncRate()
: -1;
if (newRate != gLastUsedFrameRate) {
gLastUsedFrameRate = newRate;
gfxPlatform::ReInitFrameRate();
}
}
void gfxPlatform::Init() {
MOZ_RELEASE_ASSERT(!XRE_IsGPUProcess(), "GFX: Not allowed in GPU process.");
MOZ_RELEASE_ASSERT(!XRE_IsRDDProcess(), "GFX: Not allowed in RDD process.");
MOZ_RELEASE_ASSERT(NS_IsMainThread(), "GFX: Not in main thread.");
if (gEverInitialized) {
MOZ_CRASH("Already started???");
}
gEverInitialized = true;
gfxVars::Initialize();
gfxConfig::Init();
if (XRE_IsParentProcess()) {
GPUProcessManager::Initialize();
RDDProcessManager::Initialize();
nsCOMPtr<nsIFile> file;
nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(file));
if (NS_FAILED(rv)) {
gfxVars::SetGREDirectory(nsString());
} else {
nsAutoString path;
file->GetPath(path);
gfxVars::SetGREDirectory(nsString(path));
}
}
if (XRE_IsParentProcess()) {
nsCOMPtr<nsIFile> profDir;
nsresult rv = NS_GetSpecialDirectory(NS_APP_PROFILE_DIR_STARTUP,
getter_AddRefs(profDir));
if (NS_FAILED(rv)) {
gfxVars::SetProfDirectory(nsString());
} else {
nsAutoString path;
profDir->GetPath(path);
gfxVars::SetProfDirectory(nsString(path));
}
nsAutoCString path;
Preferences::GetCString("layers.windowrecording.path", path);
gfxVars::SetLayersWindowRecordingPath(path);
if (gFxREmbedded) {
gfxVars::SetFxREmbedded(true);
}
}
// Drop a note in the crash report if we end up forcing an option that could
// destabilize things. New items should be appended at the end (of an
// existing or in a new section), so that we don't have to know the version to
// interpret these cryptic strings.
{
nsAutoCString forcedPrefs;
// D2D prefs
forcedPrefs.AppendPrintf(
"FP(D%d%d", StaticPrefs::gfx_direct2d_disabled_AtStartup(),
StaticPrefs::gfx_direct2d_force_enabled_AtStartup());
// Layers prefs
forcedPrefs.AppendPrintf(
"-L%d%d%d%d",
StaticPrefs::layers_amd_switchable_gfx_enabled_AtStartup(),
StaticPrefs::layers_acceleration_disabled_AtStartup_DoNotUseDirectly(),
StaticPrefs::
layers_acceleration_force_enabled_AtStartup_DoNotUseDirectly(),
StaticPrefs::layers_d3d11_force_warp_AtStartup());
// WebGL prefs
forcedPrefs.AppendPrintf(
"-W%d%d%d%d%d%d%d%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_force_layers_readback(),
StaticPrefs::webgl_msaa_force());
// Prefs that don't fit into any of the other sections
forcedPrefs.AppendPrintf("-T%d%d%d) ",
StaticPrefs::gfx_android_rgb16_force_AtStartup(),
StaticPrefs::gfx_canvas_accelerated(),
StaticPrefs::layers_force_shmem_tiles_AtStartup());
ScopedGfxFeatureReporter::AppNote(forcedPrefs);
}
InitMoz2DLogging();
gGfxPlatformPrefsLock = new Mutex("gfxPlatform::gGfxPlatformPrefsLock");
/* Initialize the GfxInfo service.
* Note: we can't call functions on GfxInfo that depend
* on gPlatform until after it has been initialized
* below. GfxInfo initialization annotates our
* crash reports so we want to do it before
* we try to load any drivers and do device detection
* incase that code crashes. See bug #591561. */
nsCOMPtr<nsIGfxInfo> gfxInfo;
/* this currently will only succeed on Windows */
gfxInfo = components::GfxInfo::Service();
if (XRE_IsParentProcess()) {
// Some gfxVars must be initialized prior gPlatform for coherent results.
gfxVars::SetDXInterop2Blocked(IsDXInterop2Blocked());
gfxVars::SetDXNV12Blocked(IsDXNV12Blocked());
gfxVars::SetDXP010Blocked(IsDXP010Blocked());
gfxVars::SetDXP016Blocked(IsDXP016Blocked());
}
#if defined(XP_WIN)
gPlatform = new gfxWindowsPlatform;
#elif defined(XP_MACOSX)
gPlatform = new gfxPlatformMac;
#elif defined(MOZ_WIDGET_GTK)
gPlatform = new gfxPlatformGtk;
#elif defined(ANDROID)
gPlatform = new gfxAndroidPlatform;
#else
# error "No gfxPlatform implementation available"
#endif
gPlatform->PopulateScreenInfo();
gPlatform->InitAcceleration();
gPlatform->InitWebRenderConfig();
gPlatform->InitWebGLConfig();
gPlatform->InitWebGPUConfig();
gPlatform->InitWindowOcclusionConfig();
// 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 (!UseWebRender()
#if defined(XP_WIN)
|| (UseWebRender() && XRE_IsParentProcess() &&
!gfxConfig::IsEnabled(Feature::GPU_PROCESS) &&
StaticPrefs::
gfx_webrender_enabled_no_gpu_process_with_angle_win_AtStartup())
#endif
) {
gPlatform->EnsureDevicesInitialized();
}
if (gfxConfig::IsEnabled(Feature::GPU_PROCESS)) {
GPUProcessManager* gpu = GPUProcessManager::Get();
gpu->LaunchGPUProcess();
}
gLastUsedFrameRate = ForceSoftwareVsync() ? GetSoftwareVsyncRate() : -1;
Preferences::RegisterCallback(
FrameRatePrefChanged,
nsDependentCString(StaticPrefs::GetPrefName_layout_frame_rate()));
// Set up the vsync source for the parent process.
ReInitFrameRate();
// 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
InitLayersIPC();
gPlatform->mHasVariationFontSupport = gPlatform->CheckVariationFontSupport();
// 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() && UseWebRender()) {
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 (!gPlatform->HasVariationFontSupport()) {
// Ensure variation fonts are disabled and the pref is locked.
Preferences::SetBool(FONT_VARIATIONS_PREF, false, PrefValueKind::Default);
Preferences::SetBool(FONT_VARIATIONS_PREF, false);
Preferences::Lock(FONT_VARIATIONS_PREF);
}
}
if (XRE_IsParentProcess()) {
ReportTelemetry();
}
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (obs) {
obs->NotifyObservers(nullptr, "gfx-features-ready", nullptr);
}
}
void gfxPlatform::ReportTelemetry() {
MOZ_RELEASE_ASSERT(XRE_IsParentProcess(),
"GFX: Only allowed to be called from parent process.");
nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
nsTArray<uint32_t> displayWidths;
nsTArray<uint32_t> displayHeights;
gfxInfo->GetDisplayWidth(displayWidths);
gfxInfo->GetDisplayHeight(displayHeights);
uint32_t displayCount = displayWidths.Length();
uint32_t displayWidth = displayWidths.Length() > 0 ? displayWidths[0] : 0;
uint32_t displayHeight = displayHeights.Length() > 0 ? displayHeights[0] : 0;
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_DISPLAY_COUNT, displayCount);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_DISPLAY_PRIMARY_HEIGHT,
displayHeight);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_DISPLAY_PRIMARY_WIDTH,
displayWidth);
nsString adapterDesc;
gfxInfo->GetAdapterDescription(adapterDesc);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DESCRIPTION,
adapterDesc);
nsString adapterVendorId;
gfxInfo->GetAdapterVendorID(adapterVendorId);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_VENDOR_ID,
adapterVendorId);
nsString adapterDeviceId;
gfxInfo->GetAdapterDeviceID(adapterDeviceId);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DEVICE_ID,
adapterDeviceId);
nsString adapterSubsystemId;
gfxInfo->GetAdapterSubsysID(adapterSubsystemId);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_SUBSYSTEM_ID,
adapterSubsystemId);
uint32_t adapterRam = 0;
gfxInfo->GetAdapterRAM(&adapterRam);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_RAM, adapterRam);
nsString adapterDriver;
gfxInfo->GetAdapterDriver(adapterDriver);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DRIVER_FILES,
adapterDriver);
nsString adapterDriverVendor;
gfxInfo->GetAdapterDriverVendor(adapterDriverVendor);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DRIVER_VENDOR,
adapterDriverVendor);
nsString adapterDriverVersion;
gfxInfo->GetAdapterDriverVersion(adapterDriverVersion);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DRIVER_VERSION,
adapterDriverVersion);
nsString adapterDriverDate;
gfxInfo->GetAdapterDriverDate(adapterDriverDate);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_ADAPTER_DRIVER_DATE,
adapterDriverDate);
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_HEADLESS, IsHeadless());
}
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::UseWebRender() { return gfx::gfxVars::UseWebRender(); }
/* static */
bool gfxPlatform::UseRemoteCanvas() {
return XRE_IsContentProcess() && gfx::gfxVars::RemoteCanvasEnabled();
}
/* static */
bool gfxPlatform::IsBackendAccelerated(
const mozilla::gfx::BackendType aBackendType) {
return aBackendType == BackendType::DIRECT2D ||
aBackendType == BackendType::DIRECT2D1_1;
}
/* static */
bool gfxPlatform::CanMigrateMacGPUs() {
int32_t pMigration = StaticPrefs::gfx_compositor_gpu_migration();
bool forceDisable = pMigration == 0;
bool forceEnable = pMigration == 2;
return forceEnable || !forceDisable;
}
static bool sLayersIPCIsUp = false;
/* static */
void gfxPlatform::InitNullMetadata() {
ScrollMetadata::sNullMetadata = new ScrollMetadata();
ClearOnShutdown(&ScrollMetadata::sNullMetadata);
}
void gfxPlatform::Shutdown() {
// In some cases, gPlatform may not be created but Shutdown() called,
// e.g., during xpcshell tests.
if (!gPlatform) {
return;
}
MOZ_ASSERT(!sLayersIPCIsUp);
// These may be called before the corresponding subsystems have actually
// started up. That's OK, they can handle it.
gfxFontCache::Shutdown();
gfxGradientCache::Shutdown();
gfxAlphaBoxBlur::ShutdownBlurCache();
gfxGraphiteShaper::Shutdown();
gfxPlatformFontList::Shutdown();
gfxFontMissingGlyphs::Shutdown();
// Free the various non-null transforms and loaded profiles
ShutdownCMS();
Preferences::UnregisterPrefixCallbacks(FontPrefChanged, kObservedPrefs);
NS_ASSERTION(gPlatform->mMemoryPressureObserver,
"mMemoryPressureObserver has already gone");
if (gPlatform->mMemoryPressureObserver) {
gPlatform->mMemoryPressureObserver->Unregister();
gPlatform->mMemoryPressureObserver = nullptr;
}
if (XRE_IsParentProcess()) {
gPlatform->mVsyncSource->Shutdown();
}
gPlatform->mVsyncSource = 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();
delete gGfxPlatformPrefsLock;
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) && UseWebRender()) {
wr::RenderThread::Start();
image::ImageMemoryReporter::InitForWebRender();
}
layers::CompositorThreadHolder::Start();
}
}
/* static */
void gfxPlatform::ShutdownLayersIPC() {
if (!sLayersIPCIsUp) {
return;
}
sLayersIPCIsUp = false;
if (XRE_IsContentProcess()) {
gfx::VRManagerChild::ShutDown();
gfx::CanvasManagerChild::Shutdown();
// cf bug 1215265.
if (StaticPrefs::layers_child_process_shutdown()) {
layers::CompositorManagerChild::Shutdown();
layers::ImageBridgeChild::ShutDown();
}
} else if (XRE_IsParentProcess()) {
gfx::VRManagerChild::ShutDown();
gfx::CanvasManagerChild::Shutdown();
layers::CompositorManagerChild::Shutdown();
layers::ImageBridgeChild::ShutDown();
// This could be running on either the Compositor or the Renderer thread.
gfx::CanvasManagerParent::Shutdown();
// This has to happen after shutting down the child protocols.
layers::CompositorThreadHolder::Shutdown();
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() {
nsCOMPtr<nsIScreenManager> manager =
do_GetService("@mozilla.org/gfx/screenmanager;1");
MOZ_ASSERT(manager, "failed to get nsIScreenManager");
nsCOMPtr<nsIScreen> screen;
manager->GetPrimaryScreen(getter_AddRefs(screen));
if (!screen) {
// This can happen in xpcshell, for instance
return;
}
screen->GetColorDepth(&mScreenDepth);
if (XRE_IsParentProcess()) {
gfxVars::SetScreenDepth(mScreenDepth);
}
int left, top;
screen->GetRect(&left, &top, &mScreenSize.width, &mScreenSize.height);
}
bool gfxPlatform::SupportsAzureContentForDrawTarget(DrawTarget* aTarget) {
if (!aTarget || !aTarget->IsValid()) {
return false;
}
return SupportsAzureContentForType(aTarget->GetBackendType());
}
void gfxPlatform::PurgeSkiaFontCache() {
if (gfxPlatform::GetPlatform()->GetDefaultContentBackend() ==
BackendType::SKIA) {
SkGraphics::PurgeFontCache();
}
}
already_AddRefed<DrawTarget> gfxPlatform::CreateDrawTargetForBackend(
BackendType aBackend, const IntSize& aSize, SurfaceFormat aFormat) {
// There is a bunch of knowledge in the gfxPlatform heirarchy about how to
// create the best offscreen surface for the current system and situation. We
// can easily take advantage of this for the Cairo backend, so that's what we
// do.
// mozilla::gfx::Factory can get away without having all this knowledge for
// now, but this might need to change in the future (using
// CreateOffscreenSurface() and CreateDrawTargetForSurface() for all
// backends).
if (aBackend == BackendType::CAIRO) {
RefPtr<gfxASurface> surf =
CreateOffscreenSurface(aSize, SurfaceFormatToImageFormat(aFormat));
if (!surf || surf->CairoStatus()) {
return nullptr;
}
return CreateDrawTargetForSurface(surf, aSize);
}
return Factory::CreateDrawTarget(aBackend, aSize, aFormat);
}
already_AddRefed<DrawTarget> gfxPlatform::CreateOffscreenCanvasDrawTarget(
const IntSize& aSize, SurfaceFormat aFormat) {
NS_ASSERTION(mPreferredCanvasBackend != BackendType::NONE, "No backend.");
// If we are using remote canvas we don't want to use acceleration in
// canvas DrawTargets we are not remoting, so we always use the fallback
// software one.
if (!gfxPlatform::UseRemoteCanvas() ||
!gfxPlatform::IsBackendAccelerated(mPreferredCanvasBackend)) {
RefPtr<DrawTarget> target =
CreateDrawTargetForBackend(mPreferredCanvasBackend, aSize, aFormat);
if (target || mFallbackCanvasBackend == BackendType::NONE) {
return target.forget();
}
}
#ifdef XP_WIN
// On Windows, the fallback backend (Cairo) should use its image backend.
return Factory::CreateDrawTarget(mFallbackCanvasBackend, aSize, aFormat);
#else
return CreateDrawTargetForBackend(mFallbackCanvasBackend, aSize, aFormat);
#endif
}
already_AddRefed<DrawTarget> gfxPlatform::CreateOffscreenContentDrawTarget(
const IntSize& aSize, SurfaceFormat aFormat, bool aFallback) {
BackendType backend = (aFallback) ? mSoftwareBackend : mContentBackend;
NS_ASSERTION(backend != BackendType::NONE, "No backend.");
RefPtr<DrawTarget> dt = CreateDrawTargetForBackend(backend, aSize, aFormat);
if (!dt) {
return nullptr;
}
// We'd prefer this to take proper care and return a CaptureDT, but for the
// moment since we can't and this means we're going to be drawing on the main
// thread force it's initialization. See bug 1526045 and bug 1521368.
dt->ClearRect(gfx::Rect());
if (!dt->IsValid()) {
return nullptr;
}
return dt.forget();
}
already_AddRefed<DrawTarget> gfxPlatform::CreateSimilarSoftwareDrawTarget(
DrawTarget* aDT, const IntSize& aSize, SurfaceFormat aFormat) {
RefPtr<DrawTarget> dt;
if (Factory::DoesBackendSupportDataDrawtarget(aDT->GetBackendType())) {
dt = aDT->CreateSimilarDrawTarget(aSize, aFormat);
} else {
BackendType backendType = BackendType::SKIA;
dt = Factory::CreateDrawTarget(backendType, aSize, aFormat);
}
return dt.forget();
}
/* static */
already_AddRefed<DrawTarget> gfxPlatform::CreateDrawTargetForData(
unsigned char* aData, const IntSize& aSize, int32_t aStride,
SurfaceFormat aFormat, bool aUninitialized) {
BackendType backendType = gfxVars::ContentBackend();
NS_ASSERTION(backendType != BackendType::NONE, "No backend.");
if (!Factory::DoesBackendSupportDataDrawtarget(backendType)) {
backendType = BackendType::SKIA;
}
RefPtr<DrawTarget> dt = Factory::CreateDrawTargetForData(
backendType, aData, aSize, aStride, aFormat, aUninitialized);
return dt.forget();
}
/* static */
BackendType gfxPlatform::BackendTypeForName(const nsCString& aName) {
if (aName.EqualsLiteral("cairo")) return BackendType::CAIRO;
if (aName.EqualsLiteral("skia")) return BackendType::SKIA;
if (aName.EqualsLiteral("direct2d")) return BackendType::DIRECT2D;
if (aName.EqualsLiteral("direct2d1.1")) return BackendType::DIRECT2D1_1;
return BackendType::NONE;
}
nsresult gfxPlatform::GetFontList(nsAtom* aLangGroup,
const nsACString& aGenericFamily,
nsTArray<nsString>& aListOfFonts) {
gfxPlatformFontList::PlatformFontList()->GetFontList(
aLangGroup, aGenericFamily, aListOfFonts);
return NS_OK;
}
nsresult gfxPlatform::UpdateFontList(bool aFullRebuild) {
gfxPlatformFontList::PlatformFontList()->UpdateFontList(aFullRebuild);
return NS_OK;
}
void gfxPlatform::GetStandardFamilyName(const nsCString& aFontName,
nsACString& aFamilyName) {
gfxPlatformFontList::PlatformFontList()->GetStandardFamilyName(aFontName,
aFamilyName);
}
nsAutoCString gfxPlatform::GetDefaultFontName(
const nsACString& aLangGroup, const nsACString& aGenericFamily) {
// To benefit from Return Value Optimization, all paths here must return
// this one variable:
nsAutoCString result;
auto* pfl = gfxPlatformFontList::PlatformFontList();
FamilyAndGeneric fam = pfl->GetDefaultFontFamily(aLangGroup, aGenericFamily);
if (!pfl->GetLocalizedFamilyName(fam.mFamily, result)) {
NS_WARNING("missing default font-family name");
}
return result;
}
bool gfxPlatform::DownloadableFontsEnabled() {
if (mAllowDownloadableFonts == UNINITIALIZED_VALUE) {
mAllowDownloadableFonts =
Preferences::GetBool(GFX_DOWNLOADABLE_FONTS_ENABLED, false);
}
return mAllowDownloadableFonts;
}
bool gfxPlatform::UseCmapsDuringSystemFallback() {
if (mFallbackUsesCmaps == UNINITIALIZED_VALUE) {
mFallbackUsesCmaps =
Preferences::GetBool(GFX_PREF_FALLBACK_USE_CMAPS, false);
}
return mFallbackUsesCmaps;
}
bool gfxPlatform::OpenTypeSVGEnabled() {
if (mOpenTypeSVGEnabled == UNINITIALIZED_VALUE) {
mOpenTypeSVGEnabled = Preferences::GetBool(GFX_PREF_OPENTYPE_SVG, false);
}
return mOpenTypeSVGEnabled > 0;
}
uint32_t gfxPlatform::WordCacheCharLimit() {
if (mWordCacheCharLimit == UNINITIALIZED_VALUE) {
mWordCacheCharLimit =
Preferences::GetInt(GFX_PREF_WORD_CACHE_CHARLIMIT, 32);
if (mWordCacheCharLimit < 0) {
mWordCacheCharLimit = 32;
}
}
return uint32_t(mWordCacheCharLimit);
}
uint32_t gfxPlatform::WordCacheMaxEntries() {
if (mWordCacheMaxEntries == UNINITIALIZED_VALUE) {
mWordCacheMaxEntries =
Preferences::GetInt(GFX_PREF_WORD_CACHE_MAXENTRIES, 10000);
if (mWordCacheMaxEntries < 0) {
mWordCacheMaxEntries = 10000;
}
}
return uint32_t(mWordCacheMaxEntries);
}
bool gfxPlatform::UseGraphiteShaping() {
if (mGraphiteShapingEnabled == UNINITIALIZED_VALUE) {
mGraphiteShapingEnabled =
Preferences::GetBool(GFX_PREF_GRAPHITE_SHAPING, false);
}
return mGraphiteShapingEnabled;
}
bool gfxPlatform::IsFontFormatSupported(uint32_t aFormatFlags) {
// check for strange format flags
MOZ_ASSERT(!(aFormatFlags & gfxUserFontSet::FLAG_FORMAT_NOT_USED),
"strange font format hint set");
// accept "common" formats that we support on all platforms
if (aFormatFlags & gfxUserFontSet::FLAG_FORMATS_COMMON) {
return true;
}
// reject all other formats, known and unknown
if (aFormatFlags != 0) {
return false;
}
// no format hint set, need to look at data
return true;
}
gfxFontGroup* gfxPlatform::CreateFontGroup(
nsPresContext* aPresContext, const StyleFontFamilyList& aFontFamilyList,
const gfxFontStyle* aStyle, nsAtom* aLanguage, bool aExplicitLanguage,
gfxTextPerfMetrics* aTextPerf, gfxUserFontSet* aUserFontSet,
gfxFloat aDevToCssSize) const {
return new gfxFontGroup(aPresContext, aFontFamilyList, aStyle, aLanguage,
aExplicitLanguage, aTextPerf, aUserFontSet,
aDevToCssSize);
}
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::GetPlatformCMSOutputProfileData() {
return GetPrefCMSOutputProfileData();
}
nsTArray<uint8_t> gfxPlatform::GetPrefCMSOutputProfileData() {
nsAutoCString fname;
Preferences::GetCString("gfx.color_management.display_profile", fname);
if (fname.IsEmpty()) {
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;
}
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;
}
{
int32_t mode = StaticPrefs::gfx_color_management_mode();
if (mode >= 0 && mode < int32_t(CMSMode::AllCount)) {
gCMSMode = CMSMode(mode);
}
}
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(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;
}
int32_t gfxPlatform::GetBidiNumeralOption() {
if (mBidiNumeralOption == UNINITIALIZED_VALUE) {
mBidiNumeralOption = Preferences::GetInt(BIDI_NUMERAL_PREF, 0);
}
return mBidiNumeralOption;
}
/* 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_FALLBACK_USE_CMAPS, aPref)) {
mFallbackUsesCmaps = UNINITIALIZED_VALUE;
} else if (!strcmp(GFX_PREF_WORD_CACHE_CHARLIMIT, aPref)) {
mWordCacheCharLimit = UNINITIALIZED_VALUE;
FlushFontAndWordCaches();
} else if (!strcmp(GFX_PREF_WORD_CACHE_MAXENTRIES, aPref)) {
mWordCacheMaxEntries = UNINITIALIZED_VALUE;
FlushFontAndWordCaches();
} else if (!strcmp(GFX_PREF_GRAPHITE_SHAPING, aPref)) {
mGraphiteShapingEnabled = UNINITIALIZED_VALUE;
FlushFontAndWordCaches();
} else if (
#if defined(XP_MACOSX)
!strcmp(GFX_PREF_CORETEXT_SHAPING, aPref) ||
#endif
!strcmp("gfx.font_rendering.ahem_antialias_none", aPref)) {
FlushFontAndWordCaches();
} else if (!strcmp(BIDI_NUMERAL_PREF, aPref)) {
mBidiNumeralOption = UNINITIALIZED_VALUE;
} else if (!strcmp(GFX_PREF_OPENTYPE_SVG, aPref)) {
mOpenTypeSVGEnabled = UNINITIALIZED_VALUE;
gfxFontCache::GetCache()->AgeAllGenerations();
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() {
return (mScreenReferenceDrawTarget)
? mScreenReferenceDrawTarget
: gPlatform->CreateOffscreenContentDrawTarget(
IntSize(1, 1), SurfaceFormat::B8G8R8A8, true);
}
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");
nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
nsCString discardFailureId;
int32_t status;
if (XRE_IsParentProcess()) {
gfxVars::SetBrowserTabsRemoteAutostart(BrowserTabsRemoteAutostart());
gfxVars::SetOffscreenFormat(GetOffscreenFormat());
gfxVars::SetRequiresAcceleratedGLContextForCompositorOGL(
RequiresAcceleratedGLContextForCompositorOGL());
#ifdef XP_WIN
if (NS_SUCCEEDED(
gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_D3D11_KEYED_MUTEX,
discardFailureId, &status))) {
gfxVars::SetAllowD3D11KeyedMutex(status == nsIGfxInfo::FEATURE_STATUS_OK);
} else {
// If we couldn't properly evaluate the status, err on the side
// of caution and give this functionality to the user.
gfxCriticalNote << "Cannot evaluate keyed mutex feature status";
gfxVars::SetAllowD3D11KeyedMutex(true);
}
if (StaticPrefs::gfx_direct3d11_use_double_buffering() &&
IsWin10OrLater()) {
gfxVars::SetUseDoubleBufferingWithCompositor(true);
}
#endif
}
if (Preferences::GetBool("media.hardware-video-decoding.enabled", false) &&
#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;
}
}
sLayersAccelerationPrefsInitialized = true;
if (XRE_IsParentProcess()) {
Preferences::RegisterCallbackAndCall(
VideoDecodingFailedChangedCallback,
"media.hardware-video-decoding.failed");
InitGPUProcessPrefs();
gfxVars::SetRemoteCanvasEnabled(StaticPrefs::gfx_canvas_remote() &&
gfxConfig::IsEnabled(Feature::GPU_PROCESS));
}
}
void gfxPlatform::InitGPUProcessPrefs() {
// We want to hide this from about:support, so only set a default if the
// pref is known to be true.
if (!StaticPrefs::layers_gpu_process_enabled_AtStartup() &&
!StaticPrefs::layers_gpu_process_force_enabled_AtStartup()) {
return;
}
FeatureState& gpuProc = gfxConfig::GetFeature(Feature::GPU_PROCESS);
// We require E10S - otherwise, there is very little benefit to the GPU
// process, since the UI process must still use acceleration for
// performance.
if (!BrowserTabsRemoteAutostart()) {
gpuProc.DisableByDefault(FeatureStatus::Unavailable,
"Multi-process mode is not enabled",
"FEATURE_FAILURE_NO_E10S"_ns);
} else {
gpuProc.SetDefaultFromPref(
StaticPrefs::GetPrefName_layers_gpu_process_enabled(), true,
StaticPrefs::GetPrefDefault_layers_gpu_process_enabled());
}
if (StaticPrefs::layers_gpu_process_force_enabled_AtStartup()) {
gpuProc.UserForceEnable("User force-enabled via pref");
}
if (IsHeadless()) {
gpuProc.ForceDisable(FeatureStatus::Blocked, "Headless mode is enabled",
"FEATURE_FAILURE_HEADLESS_MODE"_ns);
return;
}
if (InSafeMode()) {
gpuProc.ForceDisable(FeatureStatus::Blocked, "Safe-mode is enabled",
"FEATURE_FAILURE_SAFE_MODE"_ns);
return;
}
InitPlatformGPUProcessPrefs();
}
void gfxPlatform::InitCompositorAccelerationPrefs() {
const char* acceleratedEnv = PR_GetEnv("MOZ_ACCELERATED");
FeatureState& feature = gfxConfig::GetFeature(Feature::HW_COMPOSITING);
// Base value - does the platform allow acceleration?
if (feature.SetDefault(AccelerateLayersByDefault(), FeatureStatus::Blocked,
"Acceleration blocked by platform")) {
if (StaticPrefs::
layers_acceleration_disabled_AtStartup_DoNotUseDirectly()) {
feature.UserDisable("Disabled by pref", "FEATURE_FAILURE_COMP_PREF"_ns);
} else if (acceleratedEnv && *acceleratedEnv == '0') {
feature.UserDisable("Disabled by envvar", "FEATURE_FAILURE_COMP_ENV"_ns);
}
} else {
if (acceleratedEnv && *acceleratedEnv == '1') {
feature.UserEnable("Enabled by envvar");
}
}
// This has specific meaning elsewhere, so we always record it.
if (StaticPrefs::
layers_acceleration_force_enabled_AtStartup_DoNotUseDirectly()) {
feature.UserForceEnable("Force-enabled by pref");
}
// Safe, headless, and record/replay modes override everything.
if (InSafeMode()) {
feature.ForceDisable(FeatureStatus::Blocked,
"Acceleration blocked by safe-mode",
"FEATURE_FAILURE_COMP_SAFEMODE"_ns);
}
if (IsHeadless()) {
feature.ForceDisable(FeatureStatus::Blocked,
"Acceleration blocked by headless mode",
"FEATURE_FAILURE_COMP_HEADLESSMODE"_ns);
}
}
/*static*/
bool gfxPlatform::WebRenderPrefEnabled() {
return StaticPrefs::gfx_webrender_all_AtStartup() ||
StaticPrefs::gfx_webrender_enabled_AtStartup_DoNotUseDirectly();
}
/*static*/
bool gfxPlatform::WebRenderEnvvarEnabled() {
const char* env = PR_GetEnv("MOZ_WEBRENDER");
return (env && *env == '1');
}
/* static */ const char* gfxPlatform::WebRenderResourcePathOverride() {
const char* resourcePath = PR_GetEnv("WR_RESOURCE_PATH");
if (!resourcePath || resourcePath[0] == '\0') {
return nullptr;
}
return resourcePath;
}
void gfxPlatform::InitWebRenderConfig() {
bool prefEnabled = WebRenderPrefEnabled();
bool envvarEnabled = WebRenderEnvvarEnabled();
// WR? WR+ => means WR was enabled via gfx.webrender.all.qualified on
// qualified hardware
// WR! WR+ => means WR was enabled via gfx.webrender.{all,enabled} or
// envvar, possibly on unqualified hardware
// In all cases WR- means WR was not enabled, for one of many possible
// reasons. Prior to bug 1523788 landing the gfx.webrender.{all,enabled}
// prefs only worked on Nightly so keep that in mind when looking at older
// crash reports.
ScopedGfxFeatureReporter reporter("WR", prefEnabled || envvarEnabled);
if (!XRE_IsParentProcess()) {
// The parent process runs through all the real decision-making code
// later in this function. For other processes we still want to report
// the state of the feature for crash reports.
if (gfxVars::UseWebRender()) {
reporter.SetSuccessful();
}
return;
}
// Update the gfxConfig feature states.
gfxConfigManager manager;
manager.Init();
manager.ConfigureWebRender();
bool hasHardware = gfxConfig::IsEnabled(Feature::WEBRENDER);
bool hasSoftware = gfxConfig::IsEnabled(Feature::WEBRENDER_SOFTWARE);
bool hasWebRender = hasHardware || hasSoftware;
#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(hasWebRender);
}
#endif
if (gfxConfig::IsEnabled(Feature::WEBRENDER_SHADER_CACHE)) {
gfxVars::SetUseWebRenderProgramBinaryDisk(hasWebRender);
}
gfxVars::SetUseWebRenderOptimizedShaders(
gfxConfig::IsEnabled(Feature::WEBRENDER_OPTIMIZED_SHADERS));
gfxVars::SetUseSoftwareWebRender(!hasHardware && hasSoftware);
Preferences::RegisterPrefixCallbackAndCall(SwapIntervalPrefChangeCallback,
"gfx.swap-interval");
// gfxFeature is not usable in the GPU process, so we use gfxVars to transmit
// this feature
if (hasWebRender) {
gfxVars::SetUseWebRender(true);
reporter.SetSuccessful();
Preferences::RegisterPrefixCallbackAndCall(WebRenderDebugPrefChangeCallback,
WR_DEBUG_PREF);
RegisterWebRenderBoolParamCallback();
Preferences::RegisterPrefixCallbackAndCall(
WebRendeProfilerUIPrefChangeCallback,
"gfx.webrender.debug.profiler-ui");
Preferences::RegisterCallback(
WebRenderQualityPrefChangeCallback,
nsDependentCString(
StaticPrefs::
GetPrefName_gfx_webrender_quality_force_subpixel_aa_where_possible()));
Preferences::RegisterCallback(
WebRenderBatchingPrefChangeCallback,
nsDependentCString(
StaticPrefs::GetPrefName_gfx_webrender_batching_lookback()));
Preferences::RegisterCallbackAndCall(
WebRenderBlobTileSizePrefChangeCallback,
nsDependentCString(
StaticPrefs::GetPrefName_gfx_webrender_blob_tile_size()));
Preferences::RegisterCallbackAndCall(
WebRenderUploadThresholdPrefChangeCallback,
nsDependentCString(
StaticPrefs::GetPrefName_gfx_webrender_batched_upload_threshold()));
if (WebRenderResourcePathOverride()) {
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::IsWebRenderResourcePathOverridden, true);
}
UpdateForceSubpixelAAWherePossible();
}
#ifdef XP_WIN
if (gfxConfig::IsEnabled(Feature::WEBRENDER_DCOMP_PRESENT)) {
gfxVars::SetUseWebRenderDCompWin(true);
}
if (StaticPrefs::gfx_webrender_software_d3d11_AtStartup()) {
gfxVars::SetAllowSoftwareWebRenderD3D11(true);
}
if (Preferences::GetBool("gfx.webrender.dcomp-video-overlay-win", false)) {
if (IsWin10AnniversaryUpdateOrLater() &&
gfxConfig::IsEnabled(Feature::WEBRENDER_COMPOSITOR)) {
MOZ_ASSERT(gfxConfig::IsEnabled(Feature::WEBRENDER_DCOMP_PRESENT));
gfxVars::SetUseWebRenderDCompVideoOverlayWin(true);
}
}
if (Preferences::GetBool("gfx.webrender.flip-sequential", false)) {
if (UseWebRender() && gfxVars::UseWebRenderANGLE()) {
gfxVars::SetUseWebRenderFlipSequentialWin(true);
}
}
if (Preferences::GetBool("gfx.webrender.triple-buffering.enabled", false)) {
if (gfxVars::UseWebRenderDCompWin() ||
gfxVars::UseWebRenderFlipSequentialWin()) {
gfxVars::SetUseWebRenderTripleBufferingWin(true);
}
}
#endif
if (gfxConfig::IsEnabled(Feature::WEBRENDER_COMPOSITOR)) {
gfxVars::SetUseWebRenderCompositor(true);
}
Telemetry::ScalarSet(
Telemetry::ScalarID::GFX_OS_COMPOSITOR,
gfx::gfxConfig::IsEnabled(gfx::Feature::WEBRENDER_COMPOSITOR));
if (gfxConfig::IsEnabled(Feature::WEBRENDER_PARTIAL)) {
gfxVars::SetWebRenderMaxPartialPresentRects(
StaticPrefs::gfx_webrender_max_partial_present_rects_AtStartup());
}
// Set features that affect WR's RendererOptions
gfxVars::SetUseGLSwizzle(
IsFeatureSupported(nsIGfxInfo::FEATURE_GL_SWIZZLE, true));
gfxVars::SetUseWebRenderScissoredCacheClears(IsFeatureSupported(
nsIGfxInfo::FEATURE_WEBRENDER_SCISSORED_CACHE_CLEARS, true));
// The RemoveShaderCacheFromDiskIfNecessary() needs to be called after
// WebRenderConfig initialization.
gfxUtils::RemoveShaderCacheFromDiskIfNecessary();
}
void gfxPlatform::InitWebGLConfig() {
// Depends on InitWebRenderConfig() for UseWebRender().
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));
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);
gfxVars::SetAllowWebglOop(allowWebGLOop);
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);
if (kIsAndroid) {
// Don't enable robust buffer access on Adreno 630 devices.
// It causes the linking of some shaders to fail. See bug 1485441.
nsAutoString renderer;
gfxInfo->GetAdapterDeviceID(renderer);
if (renderer.Find("Adreno (TM) 630") != -1) {
gfxVars::SetAllowEglRbab(false);
}
}
}
void gfxPlatform::InitWebGPUConfig() {
FeatureState& feature = gfxConfig::GetFeature(Feature::WEBGPU);
feature.SetDefaultFromPref("dom.webgpu.enabled", true, false);
#ifndef NIGHTLY_BUILD
feature.ForceDisable(FeatureStatus::Blocked,
"WebGPU can only be enabled in nightly",
"WEBGPU_DISABLE_NON_NIGHTLY"_ns);
#endif
if (!UseWebRender()) {
feature.ForceDisable(FeatureStatus::UnavailableNoWebRender,
"WebGPU can't present without WebRender",
"FEATURE_FAILURE_WEBGPU_NEED_WEBRENDER"_ns);
}
}
#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
}
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;
}
/***
* 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::CreateHardwareVsyncSource() {
RefPtr<mozilla::gfx::VsyncSource> softwareVsync = new SoftwareVsyncSource();
return softwareVsync.forget();
}
/* static */
bool gfxPlatform::IsInLayoutAsapMode() {
// There are 2 modes of ASAP mode.
// 1 is that the refresh driver and compositor are in lock step
// the second is that the compositor goes ASAP and the refresh driver
// goes at whatever the configurated rate is. This only checks the version
// talos uses, which is the refresh driver and compositor are in lockstep.
return StaticPrefs::layout_frame_rate() == 0;
}
/* static */
bool gfxPlatform::ForceSoftwareVsync() {
return StaticPrefs::layout_frame_rate() > 0;
}
/* static */
int gfxPlatform::GetSoftwareVsyncRate() {
int preferenceRate = StaticPrefs::layout_frame_rate();
if (preferenceRate <= 0) {
return gfxPlatform::GetDefaultFrameRate();
}
return preferenceRate;
}
/* static */
int gfxPlatform::GetDefaultFrameRate() { return 60; }
/* static */
void gfxPlatform::ReInitFrameRate() {
if (XRE_IsParentProcess()) {
RefPtr<VsyncSource> oldSource = gPlatform->mVsyncSource;
// Start a new one:
if (gfxPlatform::ForceSoftwareVsync()) {
gPlatform->mVsyncSource =
(gPlatform)->gfxPlatform::CreateHardwareVsyncSource();
} else {
gPlatform->mVsyncSource = gPlatform->CreateHardwareVsyncSource();
}
// Tidy up old vsync source.
if (oldSource) {
oldSource->MoveListenersToNewSource(gPlatform->mVsyncSource);
oldSource->Shutdown();
}
}
}
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) {
nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service();
nsTArray<nsString> displayInfo;
auto rv = gfxInfo->GetDisplayInfo(displayInfo);
if (NS_SUCCEEDED(rv)) {
size_t displayCount = displayInfo.Length();
aObj.DefineProperty("DisplayCount", displayCount);
for (size_t i = 0; i < displayCount; i++) {
nsPrintfCString name("Display%zu", i);
aObj.DefineProperty(name.get(), displayInfo[i]);
}
}
// 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);
}
}
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->mVsyncSource) {
VsyncSource::Display& display = gPlatform->mVsyncSource->GetGlobalDisplay();
return round(1000.0 / display.GetVsyncRate().ToMilliseconds());
}
return 0;
}
/* static */
bool gfxPlatform::UseDesktopZoomingScrollbars() {
return StaticPrefs::apz_allow_zooming() &&
!StaticPrefs::apz_force_disable_desktop_zooming_scrollbars();
}
/*static*/
bool gfxPlatform::AsyncPanZoomEnabled() {
#if !defined(MOZ_WIDGET_ANDROID) && !defined(MOZ_WIDGET_UIKIT)
// For XUL applications (everything but Firefox on Android)
// we only want to use APZ when E10S is enabled. If
// we ever get input events off the main thread we can consider relaxing
// this requirement.
if (!BrowserTabsRemoteAutostart()) {
return false;
}
#endif
#ifdef MOZ_WIDGET_ANDROID
return true;
#else
// If Fission is enabled, OOP iframes require APZ for hittest. So, we
// need to forcibly enable APZ in that case for avoiding users confused.
if (FissionAutostart()) {
return true;
}
return StaticPrefs::
layers_async_pan_zoom_enabled_AtStartup_DoNotUseDirectly();
#endif
}
/*static*/
bool gfxPlatform::PerfWarnings() {
return StaticPrefs::gfx_perf_warnings_enabled();
}
void gfxPlatform::NotifyCompositorCreated(LayersBackend aBackend) {
if (mCompositorBackend == aBackend) {
return;
}
if (mCompositorBackend != LayersBackend::LAYERS_NONE) {
gfxCriticalNote << "Compositors might be mixed (" << int(mCompositorBackend)
<< "," << int(aBackend) << ")";
}
// Set the backend before we notify so it's available immediately.
mCompositorBackend = aBackend;
if (XRE_IsParentProcess()) {
Telemetry::ScalarSet(
Telemetry::ScalarID::GFX_COMPOSITOR,
NS_ConvertUTF8toUTF16(GetLayersBackendName(mCompositorBackend)));
nsCString geckoVersion;
nsCOMPtr<nsIXULAppInfo> app = do_GetService("@mozilla.org/xre/app-info;1");
if (app) {
app->GetVersion(geckoVersion);
}
Telemetry::ScalarSet(Telemetry::ScalarID::GFX_LAST_COMPOSITOR_GECKO_VERSION,
NS_ConvertASCIItoUTF16(geckoVersion));
Telemetry::ScalarSet(
Telemetry::ScalarID::GFX_FEATURE_WEBRENDER,
NS_ConvertUTF8toUTF16(gfxConfig::GetFeature(gfx::Feature::WEBRENDER)
.GetStatusAndFailureIdString()));
}
// Notify that we created a compositor, so telemetry can update.
NS_DispatchToMainThread(
NS_NewRunnableFunction("gfxPlatform::NotifyCompositorCreated", [] {
if (nsCOMPtr<nsIObserverService> obsvc =
services::GetObserverService()) {
obsvc->NotifyObservers(nullptr, "compositor:created", nullptr);
}
}));
}
/* static */
bool gfxPlatform::FallbackFromAcceleration(FeatureStatus aStatus,
const char* aMessage,
const nsACString& aFailureId) {
// We always want to ensure (Hardware) WebRender is disabled.
if (gfxConfig::IsEnabled(Feature::WEBRENDER)) {
gfxConfig::GetFeature(Feature::WEBRENDER)
.ForceDisable(aStatus, aMessage, aFailureId);
}
// Determine whether or not we are allowed to use Software WebRender in
// fallback without the GPU process. Either the pref is false, or the feature
// is enabled and we are currently still using it.
bool swglFallbackAllowed =
!StaticPrefs::
gfx_webrender_fallback_software_requires_gpu_process_AtStartup() ||
gfxConfig::IsEnabled(Feature::GPU_PROCESS);
#ifdef XP_WIN
// Before we disable D3D11 and HW_COMPOSITING, we should check if we can
// fallback from WebRender to Software WebRender + D3D11 compositing.
if (StaticPrefs::gfx_webrender_fallback_software_d3d11_AtStartup() &&
swglFallbackAllowed && gfxVars::AllowSoftwareWebRenderD3D11() &&
gfxConfig::IsEnabled(Feature::WEBRENDER_SOFTWARE) &&
gfxConfig::IsEnabled(Feature::D3D11_COMPOSITING) &&
gfxVars::UseWebRender() && !gfxVars::UseSoftwareWebRender()) {
// Fallback to Software WebRender + D3D11 compositing.
gfxCriticalNote << "Fallback WR to SW-WR + D3D11";
gfxVars::SetUseSoftwareWebRender(true);
return true;
}
if (StaticPrefs::gfx_webrender_fallback_software_d3d11_AtStartup() &&
swglFallbackAllowed && gfxVars::AllowSoftwareWebRenderD3D11() &&
gfxVars::UseSoftwareWebRender()) {
// Fallback from Software WebRender + D3D11 to Software WebRender.
gfxCriticalNote << "Fallback SW-WR + D3D11 to SW-WR";
gfxVars::SetAllowSoftwareWebRenderD3D11(false);
return true;
}
// We aren't using Software WebRender + D3D11 compositing, so turn off the
// D3D11 and D2D.
if (gfxConfig::IsEnabled(Feature::DIRECT2D)) {
gfxConfig::GetFeature(Feature::DIRECT2D)
.ForceDisable(aStatus, aMessage, aFailureId);
}
if (gfxConfig::IsEnabled(Feature::D3D11_COMPOSITING)) {
gfxConfig::GetFeature(Feature::D3D11_COMPOSITING)
.ForceDisable(aStatus, aMessage, aFailureId);
if (StaticPrefs::gfx_webrender_fallback_software_AtStartup() &&
swglFallbackAllowed &&
gfxConfig::IsEnabled(Feature::WEBRENDER_SOFTWARE) &&
!gfxVars::UseWebRender()) {
// Fallback from D3D11 to Software WebRender.
gfxCriticalNote << "Fallback D3D11 to SW-WR";
gfxVars::SetUseWebRender(true);
gfxVars::SetUseSoftwareWebRender(true);
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 (!gfxVars::UseWebRender()) {
// We were not using WebRender in the first place, and we have disabled
// all forms of accelerated compositing.
return false;
}
if (StaticPrefs::gfx_webrender_fallback_software_AtStartup() &&
swglFallbackAllowed &&
gfxConfig::IsEnabled(Feature::WEBRENDER_SOFTWARE) &&
!gfxVars::UseSoftwareWebRender()) {
// Fallback from WebRender to Software WebRender.
gfxCriticalNote << "Fallback WR to SW-WR";
gfxVars::SetUseSoftwareWebRender(true);
return true;
}
MOZ_ASSERT(gfxVars::UseWebRender());
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;
}
// Continue using Software WebRender (disabled fallback to Basic).
gfxCriticalNoteOnce << "Fallback remains SW-WR";
return false;
}
/* static */
void gfxPlatform::DisableGPUProcess() {
gfxVars::SetRemoteCanvasEnabled(false);
if (gfxVars::UseWebRender()) {
// 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();
image::ImageMemoryReporter::InitForWebRender();
}
}
void gfxPlatform::FetchAndImportContentDeviceData() {
MOZ_ASSERT(XRE_IsContentProcess());
if (gContentDeviceInitData) {
ImportContentDeviceData(*gContentDeviceInitData);
return;
}
mozilla::dom::ContentChild* cc = mozilla::dom::ContentChild::GetSingleton();
mozilla::gfx::ContentDeviceData data;
cc->SendGetGraphicsDeviceInitData(&data);
ImportContentDeviceData(data);
}
void gfxPlatform::ImportContentDeviceData(
const mozilla::gfx::ContentDeviceData& aData) {
MOZ_ASSERT(XRE_IsContentProcess());
const DevicePrefs& prefs = aData.prefs();
gfxConfig::Inherit(Feature::HW_COMPOSITING, prefs.hwCompositing());
gfxConfig::Inherit(Feature::OPENGL_COMPOSITING, prefs.oglCompositing());
}
void gfxPlatform::BuildContentDeviceData(
mozilla::gfx::ContentDeviceData* aOut) {
MOZ_ASSERT(XRE_IsParentProcess());
// Make sure our settings are synchronized from the GPU process.
GPUProcessManager::Get()->EnsureGPUReady();
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;
}