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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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
#include "2D.h"
#include "Swizzle.h"
#ifdef USE_CAIRO
# include "DrawTargetCairo.h"
# include "PathCairo.h"
# include "SourceSurfaceCairo.h"
#endif
#include "DrawTargetSkia.h"
#include "PathSkia.h"
#include "ScaledFontBase.h"
#if defined(WIN32)
# include "ScaledFontWin.h"
# include "NativeFontResourceGDI.h"
# include "UnscaledFontGDI.h"
#endif
#ifdef XP_DARWIN
# include "ScaledFontMac.h"
# include "NativeFontResourceMac.h"
# include "UnscaledFontMac.h"
#endif
#ifdef MOZ_WIDGET_GTK
# include "ScaledFontFontconfig.h"
# include "NativeFontResourceFreeType.h"
# include "UnscaledFontFreeType.h"
#endif
#ifdef MOZ_WIDGET_ANDROID
# include "ScaledFontFreeType.h"
# include "NativeFontResourceFreeType.h"
# include "UnscaledFontFreeType.h"
#endif
#ifdef WIN32
# include "DrawTargetD2D1.h"
# include "PathD2D.h"
# include "ScaledFontDWrite.h"
# include "NativeFontResourceDWrite.h"
# include "UnscaledFontDWrite.h"
# include <d3d10_1.h>
# include <stdlib.h>
# include "HelpersD2D.h"
# include "DXVA2Manager.h"
# include "ImageContainer.h"
# include "mozilla/layers/LayersSurfaces.h"
# include "mozilla/layers/TextureD3D11.h"
# include "nsWindowsHelpers.h"
#endif
#include "DrawTargetOffset.h"
#include "DrawTargetRecording.h"
#include "SourceSurfaceRawData.h"
#include "mozilla/CheckedInt.h"
#ifdef MOZ_ENABLE_FREETYPE
# include "ft2build.h"
# include FT_FREETYPE_H
#endif
#include "mozilla/StaticPrefs_gfx.h"
#if defined(MOZ_LOGGING)
GFX2D_API mozilla::LogModule* GetGFX2DLog() {
static mozilla::LazyLogModule sLog("gfx2d");
return sLog;
}
#endif
// The following code was largely taken from xpcom/glue/SSE.cpp and
// made a little simpler.
enum CPUIDRegister { eax = 0, ebx = 1, ecx = 2, edx = 3 };
#ifdef HAVE_CPUID_H
# if !(defined(__SSE2__) || defined(_M_X64) || \
(defined(_M_IX86_FP) && _M_IX86_FP >= 2)) || \
!defined(__SSE4__)
// cpuid.h is available on gcc 4.3 and higher on i386 and x86_64
# include <cpuid.h>
static inline bool HasCPUIDBit(unsigned int level, CPUIDRegister reg,
unsigned int bit) {
unsigned int regs[4];
return __get_cpuid(level, ®s[0], ®s[1], ®s[2], ®s[3]) &&
(regs[reg] & bit);
}
# endif
# define HAVE_CPU_DETECTION
#else
# if defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_AMD64))
// MSVC 2005 or later supports __cpuid by intrin.h
# include <intrin.h>
# define HAVE_CPU_DETECTION
# elif defined(__SUNPRO_CC) && (defined(__i386) || defined(__x86_64__))
// Define a function identical to MSVC function.
# ifdef __i386
static void __cpuid(int CPUInfo[4], int InfoType) {
asm("xchg %esi, %ebx\n"
"cpuid\n"
"movl %eax, (%edi)\n"
"movl %ebx, 4(%edi)\n"
"movl %ecx, 8(%edi)\n"
"movl %edx, 12(%edi)\n"
"xchg %esi, %ebx\n"
:
: "a"(InfoType), // %eax
"D"(CPUInfo) // %edi
: "%ecx", "%edx", "%esi");
}
# else
static void __cpuid(int CPUInfo[4], int InfoType) {
asm("xchg %rsi, %rbx\n"
"cpuid\n"
"movl %eax, (%rdi)\n"
"movl %ebx, 4(%rdi)\n"
"movl %ecx, 8(%rdi)\n"
"movl %edx, 12(%rdi)\n"
"xchg %rsi, %rbx\n"
:
: "a"(InfoType), // %eax
"D"(CPUInfo) // %rdi
: "%ecx", "%edx", "%rsi");
}
# define HAVE_CPU_DETECTION
# endif
# endif
# ifdef HAVE_CPU_DETECTION
static inline bool HasCPUIDBit(unsigned int level, CPUIDRegister reg,
unsigned int bit) {
// Check that the level in question is supported.
volatile int regs[4];
__cpuid((int*)regs, level & 0x80000000u);
if (unsigned(regs[0]) < level) return false;
__cpuid((int*)regs, level);
return !!(unsigned(regs[reg]) & bit);
}
# endif
#endif
#ifdef MOZ_ENABLE_FREETYPE
extern "C" {
void mozilla_AddRefSharedFTFace(void* aContext) {
if (aContext) {
static_cast<mozilla::gfx::SharedFTFace*>(aContext)->AddRef();
}
}
void mozilla_ReleaseSharedFTFace(void* aContext, void* aOwner) {
if (aContext) {
auto* sharedFace = static_cast<mozilla::gfx::SharedFTFace*>(aContext);
sharedFace->ForgetLockOwner(aOwner);
sharedFace->Release();
}
}
void mozilla_ForgetSharedFTFaceLockOwner(void* aContext, void* aOwner) {
static_cast<mozilla::gfx::SharedFTFace*>(aContext)->ForgetLockOwner(aOwner);
}
int mozilla_LockSharedFTFace(void* aContext,
void* aOwner) MOZ_NO_THREAD_SAFETY_ANALYSIS {
return int(static_cast<mozilla::gfx::SharedFTFace*>(aContext)->Lock(aOwner));
}
void mozilla_UnlockSharedFTFace(void* aContext) MOZ_NO_THREAD_SAFETY_ANALYSIS {
static_cast<mozilla::gfx::SharedFTFace*>(aContext)->Unlock();
}
FT_Error mozilla_LoadFTGlyph(FT_Face aFace, uint32_t aGlyphIndex,
int32_t aFlags) {
return mozilla::gfx::Factory::LoadFTGlyph(aFace, aGlyphIndex, aFlags);
}
void mozilla_LockFTLibrary(FT_Library aFTLibrary) {
mozilla::gfx::Factory::LockFTLibrary(aFTLibrary);
}
void mozilla_UnlockFTLibrary(FT_Library aFTLibrary) {
mozilla::gfx::Factory::UnlockFTLibrary(aFTLibrary);
}
}
#endif
namespace mozilla::gfx {
#ifdef MOZ_ENABLE_FREETYPE
FT_Library Factory::mFTLibrary = nullptr;
StaticMutex Factory::mFTLock;
already_AddRefed<SharedFTFace> FTUserFontData::CloneFace(int aFaceIndex) {
if (mFontData) {
RefPtr<SharedFTFace> face = Factory::NewSharedFTFaceFromData(
nullptr, mFontData, mLength, aFaceIndex, this);
if (!face ||
(FT_Select_Charmap(face->GetFace(), FT_ENCODING_UNICODE) != FT_Err_Ok &&
FT_Select_Charmap(face->GetFace(), FT_ENCODING_MS_SYMBOL) !=
FT_Err_Ok)) {
return nullptr;
}
return face.forget();
}
FT_Face face = Factory::NewFTFace(nullptr, mFilename.c_str(), aFaceIndex);
if (face) {
return MakeAndAddRef<SharedFTFace>(face, this);
}
return nullptr;
}
#endif
#ifdef WIN32
// Note: mDeviceLock must be held when mutating these values.
static uint32_t mDeviceSeq = 0;
StaticRefPtr<ID3D11Device> Factory::mD3D11Device;
StaticRefPtr<ID2D1Device> Factory::mD2D1Device;
StaticRefPtr<IDWriteFactory> Factory::mDWriteFactory;
StaticRefPtr<ID2D1DeviceContext> Factory::mMTDC;
StaticRefPtr<ID2D1DeviceContext> Factory::mOffMTDC;
bool Factory::mDWriteFactoryInitialized = false;
StaticRefPtr<IDWriteFontCollection> Factory::mDWriteSystemFonts;
StaticMutex Factory::mDeviceLock;
StaticMutex Factory::mDTDependencyLock;
#endif
bool Factory::mBGRSubpixelOrder = false;
mozilla::gfx::Config* Factory::sConfig = nullptr;
void Factory::Init(const Config& aConfig) {
MOZ_ASSERT(!sConfig);
sConfig = new Config(aConfig);
#ifdef XP_DARWIN
NativeFontResourceMac::RegisterMemoryReporter();
#else
NativeFontResource::RegisterMemoryReporter();
#endif
}
void Factory::ShutDown() {
if (sConfig) {
delete sConfig->mLogForwarder;
delete sConfig;
sConfig = nullptr;
}
#ifdef MOZ_ENABLE_FREETYPE
mFTLibrary = nullptr;
#endif
}
bool Factory::HasSSE2() {
#if defined(__SSE2__) || defined(_M_X64) || \
(defined(_M_IX86_FP) && _M_IX86_FP >= 2)
// gcc with -msse2 (default on OSX and x86-64)
// cl.exe with -arch:SSE2 (default on x64 compiler)
return true;
#elif defined(HAVE_CPU_DETECTION)
static enum {
UNINITIALIZED,
NO_SSE2,
HAS_SSE2
} sDetectionState = UNINITIALIZED;
if (sDetectionState == UNINITIALIZED) {
sDetectionState = HasCPUIDBit(1u, edx, (1u << 26)) ? HAS_SSE2 : NO_SSE2;
}
return sDetectionState == HAS_SSE2;
#else
return false;
#endif
}
bool Factory::HasSSE4() {
#if defined(__SSE4__)
// gcc with -msse2 (default on OSX and x86-64)
// cl.exe with -arch:SSE2 (default on x64 compiler)
return true;
#elif defined(HAVE_CPU_DETECTION)
static enum {
UNINITIALIZED,
NO_SSE4,
HAS_SSE4
} sDetectionState = UNINITIALIZED;
if (sDetectionState == UNINITIALIZED) {
sDetectionState = HasCPUIDBit(1u, ecx, (1u << 19)) ? HAS_SSE4 : NO_SSE4;
}
return sDetectionState == HAS_SSE4;
#else
return false;
#endif
}
// If the size is "reasonable", we want gfxCriticalError to assert, so
// this is the option set up for it.
inline int LoggerOptionsBasedOnSize(const IntSize& aSize) {
return CriticalLog::DefaultOptions(Factory::ReasonableSurfaceSize(aSize));
}
bool Factory::ReasonableSurfaceSize(const IntSize& aSize) {
return Factory::CheckSurfaceSize(aSize, kReasonableSurfaceSize);
}
bool Factory::AllowedSurfaceSize(const IntSize& aSize) {
if (sConfig) {
return Factory::CheckSurfaceSize(aSize, sConfig->mMaxTextureSize,
sConfig->mMaxAllocSize);
}
return CheckSurfaceSize(aSize);
}
bool Factory::CheckSurfaceSize(const IntSize& sz, int32_t extentLimit,
int32_t allocLimit) {
if (sz.width <= 0 || sz.height <= 0) {
return false;
}
// reject images with sides bigger than limit
if (extentLimit && (sz.width > extentLimit || sz.height > extentLimit)) {
gfxDebug() << "Surface size too large (exceeds extent limit)!";
return false;
}
// assuming 4 bytes per pixel, make sure the allocation size
// doesn't overflow a int32_t either
CheckedInt<int32_t> stride = GetAlignedStride<16>(sz.width, 4);
if (!stride.isValid() || stride.value() == 0) {
gfxDebug() << "Surface size too large (stride overflows int32_t)!";
return false;
}
CheckedInt<int32_t> numBytes = stride * sz.height;
if (!numBytes.isValid()) {
gfxDebug()
<< "Surface size too large (allocation size would overflow int32_t)!";
return false;
}
if (allocLimit && allocLimit < numBytes.value()) {
gfxDebug() << "Surface size too large (exceeds allocation limit)!";
return false;
}
return true;
}
already_AddRefed<DrawTarget> Factory::CreateDrawTarget(BackendType aBackend,
const IntSize& aSize,
SurfaceFormat aFormat) {
if (!AllowedSurfaceSize(aSize)) {
gfxCriticalError(LoggerOptionsBasedOnSize(aSize))
<< "Failed to allocate a surface due to invalid size (CDT) " << aSize;
return nullptr;
}
RefPtr<DrawTarget> retVal;
switch (aBackend) {
#ifdef WIN32
case BackendType::DIRECT2D1_1: {
RefPtr<DrawTargetD2D1> newTarget;
newTarget = new DrawTargetD2D1();
if (newTarget->Init(aSize, aFormat)) {
retVal = newTarget;
}
break;
}
#endif
case BackendType::SKIA: {
RefPtr<DrawTargetSkia> newTarget;
newTarget = new DrawTargetSkia();
if (newTarget->Init(aSize, aFormat)) {
retVal = newTarget;
}
break;
}
#ifdef USE_CAIRO
case BackendType::CAIRO: {
RefPtr<DrawTargetCairo> newTarget;
newTarget = new DrawTargetCairo();
if (newTarget->Init(aSize, aFormat)) {
retVal = newTarget;
}
break;
}
#endif
default:
return nullptr;
}
if (!retVal) {
// Failed
gfxCriticalError(LoggerOptionsBasedOnSize(aSize))
<< "Failed to create DrawTarget, Type: " << int(aBackend)
<< " Size: " << aSize;
}
return retVal.forget();
}
already_AddRefed<PathBuilder> Factory::CreatePathBuilder(BackendType aBackend,
FillRule aFillRule) {
switch (aBackend) {
#ifdef WIN32
case BackendType::DIRECT2D1_1:
return PathBuilderD2D::Create(aFillRule);
#endif
case BackendType::SKIA:
case BackendType::WEBGL:
return PathBuilderSkia::Create(aFillRule);
#ifdef USE_CAIRO
case BackendType::CAIRO:
return PathBuilderCairo::Create(aFillRule);
#endif
default:
gfxCriticalNote << "Invalid PathBuilder type specified: "
<< (int)aBackend;
return nullptr;
}
}
already_AddRefed<PathBuilder> Factory::CreateSimplePathBuilder() {
return CreatePathBuilder(BackendType::SKIA);
}
already_AddRefed<DrawTarget> Factory::CreateRecordingDrawTarget(
DrawEventRecorder* aRecorder, DrawTarget* aDT, IntRect aRect) {
return MakeAndAddRef<DrawTargetRecording>(aRecorder, aDT, aRect);
}
already_AddRefed<DrawTarget> Factory::CreateDrawTargetForData(
BackendType aBackend, unsigned char* aData, const IntSize& aSize,
int32_t aStride, SurfaceFormat aFormat, bool aUninitialized) {
MOZ_ASSERT(aData);
if (!AllowedSurfaceSize(aSize)) {
gfxCriticalError(LoggerOptionsBasedOnSize(aSize))
<< "Failed to allocate a surface due to invalid size (DTD) " << aSize;
return nullptr;
}
RefPtr<DrawTarget> retVal;
switch (aBackend) {
case BackendType::SKIA: {
RefPtr<DrawTargetSkia> newTarget;
newTarget = new DrawTargetSkia();
if (newTarget->Init(aData, aSize, aStride, aFormat, aUninitialized)) {
retVal = newTarget;
}
break;
}
#ifdef USE_CAIRO
case BackendType::CAIRO: {
RefPtr<DrawTargetCairo> newTarget;
newTarget = new DrawTargetCairo();
if (newTarget->Init(aData, aSize, aStride, aFormat)) {
retVal = std::move(newTarget);
}
break;
}
#endif
default:
gfxCriticalNote << "Invalid draw target type specified: "
<< (int)aBackend;
return nullptr;
}
if (!retVal) {
gfxCriticalNote << "Failed to create DrawTarget, Type: " << int(aBackend)
<< " Size: " << aSize << ", Data: " << hexa((void*)aData)
<< ", Stride: " << aStride;
}
return retVal.forget();
}
already_AddRefed<DrawTarget> Factory::CreateOffsetDrawTarget(
DrawTarget* aDrawTarget, IntPoint aTileOrigin) {
RefPtr<DrawTargetOffset> dt = new DrawTargetOffset();
if (!dt->Init(aDrawTarget, aTileOrigin)) {
return nullptr;
}
return dt.forget();
}
bool Factory::DoesBackendSupportDataDrawtarget(BackendType aType) {
switch (aType) {
case BackendType::DIRECT2D:
case BackendType::DIRECT2D1_1:
case BackendType::RECORDING:
case BackendType::NONE:
case BackendType::BACKEND_LAST:
case BackendType::WEBRENDER_TEXT:
case BackendType::WEBGL:
return false;
case BackendType::CAIRO:
case BackendType::SKIA:
return true;
}
return false;
}
uint32_t Factory::GetMaxSurfaceSize(BackendType aType) {
switch (aType) {
case BackendType::CAIRO:
return DrawTargetCairo::GetMaxSurfaceSize();
case BackendType::SKIA:
return DrawTargetSkia::GetMaxSurfaceSize();
#ifdef WIN32
case BackendType::DIRECT2D1_1:
return DrawTargetD2D1::GetMaxSurfaceSize();
#endif
default:
return 0;
}
}
already_AddRefed<NativeFontResource> Factory::CreateNativeFontResource(
uint8_t* aData, uint32_t aSize, FontType aFontType, void* aFontContext) {
switch (aFontType) {
#ifdef WIN32
case FontType::DWRITE:
return NativeFontResourceDWrite::Create(aData, aSize);
case FontType::GDI:
return NativeFontResourceGDI::Create(aData, aSize);
#elif defined(XP_DARWIN)
case FontType::MAC:
return NativeFontResourceMac::Create(aData, aSize);
#elif defined(MOZ_WIDGET_GTK)
case FontType::FONTCONFIG:
return NativeFontResourceFontconfig::Create(
aData, aSize, static_cast<FT_Library>(aFontContext));
#elif defined(MOZ_WIDGET_ANDROID)
case FontType::FREETYPE:
return NativeFontResourceFreeType::Create(
aData, aSize, static_cast<FT_Library>(aFontContext));
#endif
default:
gfxWarning()
<< "Unable to create requested font resource from truetype data";
return nullptr;
}
}
already_AddRefed<UnscaledFont> Factory::CreateUnscaledFontFromFontDescriptor(
FontType aType, const uint8_t* aData, uint32_t aDataLength,
uint32_t aIndex) {
switch (aType) {
#ifdef WIN32
case FontType::DWRITE:
return UnscaledFontDWrite::CreateFromFontDescriptor(aData, aDataLength,
aIndex);
case FontType::GDI:
return UnscaledFontGDI::CreateFromFontDescriptor(aData, aDataLength,
aIndex);
#elif defined(XP_DARWIN)
case FontType::MAC:
return UnscaledFontMac::CreateFromFontDescriptor(aData, aDataLength,
aIndex);
#elif defined(MOZ_WIDGET_GTK)
case FontType::FONTCONFIG:
return UnscaledFontFontconfig::CreateFromFontDescriptor(
aData, aDataLength, aIndex);
#elif defined(MOZ_WIDGET_ANDROID)
case FontType::FREETYPE:
return UnscaledFontFreeType::CreateFromFontDescriptor(aData, aDataLength,
aIndex);
#endif
default:
gfxWarning() << "Invalid type specified for UnscaledFont font descriptor";
return nullptr;
}
}
#ifdef XP_DARWIN
already_AddRefed<ScaledFont> Factory::CreateScaledFontForMacFont(
CGFontRef aCGFont, const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize,
bool aUseFontSmoothing, bool aApplySyntheticBold, bool aHasColorGlyphs) {
return MakeAndAddRef<ScaledFontMac>(aCGFont, aUnscaledFont, aSize, false,
aUseFontSmoothing, aApplySyntheticBold,
aHasColorGlyphs);
}
#endif
#ifdef MOZ_WIDGET_GTK
already_AddRefed<ScaledFont> Factory::CreateScaledFontForFontconfigFont(
const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize,
RefPtr<SharedFTFace> aFace, FcPattern* aPattern) {
return MakeAndAddRef<ScaledFontFontconfig>(std::move(aFace), aPattern,
aUnscaledFont, aSize);
}
#endif
#ifdef MOZ_WIDGET_ANDROID
already_AddRefed<ScaledFont> Factory::CreateScaledFontForFreeTypeFont(
const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize,
RefPtr<SharedFTFace> aFace, bool aApplySyntheticBold) {
return MakeAndAddRef<ScaledFontFreeType>(std::move(aFace), aUnscaledFont,
aSize, aApplySyntheticBold);
}
#endif
void Factory::SetBGRSubpixelOrder(bool aBGR) { mBGRSubpixelOrder = aBGR; }
bool Factory::GetBGRSubpixelOrder() { return mBGRSubpixelOrder; }
#ifdef MOZ_ENABLE_FREETYPE
SharedFTFace::SharedFTFace(FT_Face aFace, SharedFTFaceData* aData)
: mFace(aFace),
mData(aData),
mLock("SharedFTFace::mLock"),
mLastLockOwner(nullptr) {
if (mData) {
mData->BindData();
}
}
SharedFTFace::~SharedFTFace() {
Factory::ReleaseFTFace(mFace);
if (mData) {
mData->ReleaseData();
}
}
void Factory::SetFTLibrary(FT_Library aFTLibrary) { mFTLibrary = aFTLibrary; }
FT_Library Factory::GetFTLibrary() {
MOZ_ASSERT(mFTLibrary);
return mFTLibrary;
}
FT_Library Factory::NewFTLibrary() {
FT_Library library;
if (FT_Init_FreeType(&library) != FT_Err_Ok) {
return nullptr;
}
return library;
}
void Factory::ReleaseFTLibrary(FT_Library aFTLibrary) {
FT_Done_FreeType(aFTLibrary);
}
void Factory::LockFTLibrary(FT_Library aFTLibrary)
MOZ_CAPABILITY_ACQUIRE(mFTLock) MOZ_NO_THREAD_SAFETY_ANALYSIS {
mFTLock.Lock();
}
void Factory::UnlockFTLibrary(FT_Library aFTLibrary)
MOZ_CAPABILITY_RELEASE(mFTLock) MOZ_NO_THREAD_SAFETY_ANALYSIS {
mFTLock.Unlock();
}
FT_Face Factory::NewFTFace(FT_Library aFTLibrary, const char* aFileName,
int aFaceIndex) {
StaticMutexAutoLock lock(mFTLock);
if (!aFTLibrary) {
aFTLibrary = mFTLibrary;
}
FT_Face face;
if (FT_New_Face(aFTLibrary, aFileName, aFaceIndex, &face) != FT_Err_Ok) {
return nullptr;
}
return face;
}
already_AddRefed<SharedFTFace> Factory::NewSharedFTFace(FT_Library aFTLibrary,
const char* aFilename,
int aFaceIndex) {
FT_Face face = NewFTFace(aFTLibrary, aFilename, aFaceIndex);
if (!face) {
return nullptr;
}
RefPtr<FTUserFontData> data;
# ifdef ANDROID
// If the font has variations, we may later need to "clone" it in
// UnscaledFontFreeType::CreateScaledFont. To support this, we attach an
// FTUserFontData that records the filename used to instantiate the face.
if (face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS) {
data = new FTUserFontData(aFilename);
}
# endif
return MakeAndAddRef<SharedFTFace>(face, data);
}
FT_Face Factory::NewFTFaceFromData(FT_Library aFTLibrary, const uint8_t* aData,
size_t aDataSize, int aFaceIndex) {
StaticMutexAutoLock lock(mFTLock);
if (!aFTLibrary) {
aFTLibrary = mFTLibrary;
}
FT_Face face;
if (FT_New_Memory_Face(aFTLibrary, aData, aDataSize, aFaceIndex, &face) !=
FT_Err_Ok) {
return nullptr;
}
return face;
}
already_AddRefed<SharedFTFace> Factory::NewSharedFTFaceFromData(
FT_Library aFTLibrary, const uint8_t* aData, size_t aDataSize,
int aFaceIndex, SharedFTFaceData* aSharedData) {
if (FT_Face face =
NewFTFaceFromData(aFTLibrary, aData, aDataSize, aFaceIndex)) {
return MakeAndAddRef<SharedFTFace>(face, aSharedData);
} else {
return nullptr;
}
}
void Factory::ReleaseFTFace(FT_Face aFace) {
StaticMutexAutoLock lock(mFTLock);
FT_Done_Face(aFace);
}
FT_Error Factory::LoadFTGlyph(FT_Face aFace, uint32_t aGlyphIndex,
int32_t aFlags) {
StaticMutexAutoLock lock(mFTLock);
return FT_Load_Glyph(aFace, aGlyphIndex, aFlags);
}
#endif
AutoSerializeWithMoz2D::AutoSerializeWithMoz2D(BackendType aBackendType) {
#ifdef WIN32
// We use a multi-threaded ID2D1Factory1, so that makes the calls through the
// Direct2D API thread-safe. However, if the Moz2D objects are using Direct3D
// resources we need to make sure that calls through the Direct3D or DXGI API
// use the Direct2D synchronization. It's possible that this should be pushed
// down into the TextureD3D11 objects, so that we always use this.
if (aBackendType == BackendType::DIRECT2D1_1 ||
aBackendType == BackendType::DIRECT2D) {
auto factory = D2DFactory();
if (factory) {
factory->QueryInterface(
static_cast<ID2D1Multithread**>(getter_AddRefs(mMT)));
if (mMT) {
mMT->Enter();
}
}
}
#endif
}
AutoSerializeWithMoz2D::~AutoSerializeWithMoz2D() {
#ifdef WIN32
if (mMT) {
mMT->Leave();
}
#endif
};
#ifdef WIN32
already_AddRefed<DrawTarget> Factory::CreateDrawTargetForD3D11Texture(
ID3D11Texture2D* aTexture, SurfaceFormat aFormat) {
MOZ_ASSERT(aTexture);
RefPtr<DrawTargetD2D1> newTarget;
newTarget = new DrawTargetD2D1();
if (newTarget->Init(aTexture, aFormat)) {
RefPtr<DrawTarget> retVal = newTarget;
return retVal.forget();
}
gfxWarning() << "Failed to create draw target for D3D11 texture.";
// Failed
return nullptr;
}
bool Factory::SetDirect3D11Device(ID3D11Device* aDevice) {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
// D2DFactory already takes the device lock, so we get the factory before
// entering the lock scope.
RefPtr<ID2D1Factory1> factory = D2DFactory();
StaticMutexAutoLock lock(mDeviceLock);
mD3D11Device = aDevice;
if (mD2D1Device) {
mD2D1Device = nullptr;
mMTDC = nullptr;
mOffMTDC = nullptr;
}
if (!aDevice) {
return true;
}
RefPtr<IDXGIDevice> device;
aDevice->QueryInterface((IDXGIDevice**)getter_AddRefs(device));
RefPtr<ID2D1Device> d2dDevice;
HRESULT hr = factory->CreateDevice(device, getter_AddRefs(d2dDevice));
if (FAILED(hr)) {
gfxCriticalError()
<< "[D2D1] Failed to create gfx factory's D2D1 device, code: "
<< hexa(hr);
mD3D11Device = nullptr;
return false;
}
mDeviceSeq++;
mD2D1Device = d2dDevice;
return true;
}
RefPtr<ID3D11Device> Factory::GetDirect3D11Device() {
StaticMutexAutoLock lock(mDeviceLock);
return mD3D11Device;
}
RefPtr<ID2D1Device> Factory::GetD2D1Device(uint32_t* aOutSeqNo) {
StaticMutexAutoLock lock(mDeviceLock);
if (aOutSeqNo) {
*aOutSeqNo = mDeviceSeq;
}
return mD2D1Device.get();
}
bool Factory::HasD2D1Device() { return !!GetD2D1Device(); }
RefPtr<IDWriteFactory> Factory::GetDWriteFactory() {
StaticMutexAutoLock lock(mDeviceLock);
return mDWriteFactory;
}
RefPtr<IDWriteFactory> Factory::EnsureDWriteFactory() {
StaticMutexAutoLock lock(mDeviceLock);
if (mDWriteFactoryInitialized) {
return mDWriteFactory;
}
mDWriteFactoryInitialized = true;
HMODULE dwriteModule = LoadLibrarySystem32(L"dwrite.dll");
decltype(DWriteCreateFactory)* createDWriteFactory =
(decltype(DWriteCreateFactory)*)GetProcAddress(dwriteModule,
"DWriteCreateFactory");
if (!createDWriteFactory) {
gfxWarning() << "Failed to locate DWriteCreateFactory function.";
return nullptr;
}
HRESULT hr =
createDWriteFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
reinterpret_cast<IUnknown**>(&mDWriteFactory));
if (FAILED(hr)) {
gfxWarning() << "Failed to create DWrite Factory.";
}
return mDWriteFactory;
}
RefPtr<IDWriteFontCollection> Factory::GetDWriteSystemFonts(bool aUpdate) {
StaticMutexAutoLock lock(mDeviceLock);
if (mDWriteSystemFonts && !aUpdate) {
return mDWriteSystemFonts;
}
if (!mDWriteFactory) {
if ((rand() & 0x3f) == 0) {
gfxCriticalError(int(gfx::LogOptions::AssertOnCall))
<< "Failed to create DWrite factory";
} else {
gfxWarning() << "Failed to create DWrite factory";
}
return nullptr;
}
RefPtr<IDWriteFontCollection> systemFonts;
HRESULT hr =
mDWriteFactory->GetSystemFontCollection(getter_AddRefs(systemFonts));
if (FAILED(hr) || !systemFonts) {
// only crash some of the time so those experiencing this problem
// don't stop using Firefox
if ((rand() & 0x3f) == 0) {
gfxCriticalError(int(gfx::LogOptions::AssertOnCall))
<< "Failed to create DWrite system font collection";
} else {
gfxWarning() << "Failed to create DWrite system font collection";
}
return nullptr;
}
mDWriteSystemFonts = systemFonts;
return mDWriteSystemFonts;
}
RefPtr<ID2D1DeviceContext> Factory::GetD2DDeviceContext() {
StaticRefPtr<ID2D1DeviceContext>* ptr;
if (NS_IsMainThread()) {
ptr = &mMTDC;
} else {
ptr = &mOffMTDC;
}
if (*ptr) {
return *ptr;
}
RefPtr<ID2D1Device> device = GetD2D1Device();
if (!device) {
return nullptr;
}
RefPtr<ID2D1DeviceContext> dc;
HRESULT hr = device->CreateDeviceContext(
D2D1_DEVICE_CONTEXT_OPTIONS_ENABLE_MULTITHREADED_OPTIMIZATIONS,
getter_AddRefs(dc));
if (FAILED(hr)) {
gfxCriticalError() << "Failed to create global device context";
return nullptr;
}
*ptr = dc;
return *ptr;
}
bool Factory::SupportsD2D1() { return !!D2DFactory(); }
BYTE sSystemTextQuality = CLEARTYPE_QUALITY;
void Factory::SetSystemTextQuality(uint8_t aQuality) {
sSystemTextQuality = aQuality;
}
uint64_t Factory::GetD2DVRAMUsageDrawTarget() {
return DrawTargetD2D1::mVRAMUsageDT;
}
uint64_t Factory::GetD2DVRAMUsageSourceSurface() {
return DrawTargetD2D1::mVRAMUsageSS;
}
void Factory::D2DCleanup() {
StaticMutexAutoLock lock(mDeviceLock);
if (mD2D1Device) {
mD2D1Device = nullptr;
}
DrawTargetD2D1::CleanupD2D();
}
already_AddRefed<ScaledFont> Factory::CreateScaledFontForDWriteFont(
IDWriteFontFace* aFontFace, const gfxFontStyle* aStyle,
const RefPtr<UnscaledFont>& aUnscaledFont, float aSize,
bool aUseEmbeddedBitmap, bool aUseMultistrikeBold, bool aGDIForced) {
return MakeAndAddRef<ScaledFontDWrite>(
aFontFace, aUnscaledFont, aSize, aUseEmbeddedBitmap, aUseMultistrikeBold,
aGDIForced, aStyle);
}
already_AddRefed<ScaledFont> Factory::CreateScaledFontForGDIFont(
const void* aLogFont, const RefPtr<UnscaledFont>& aUnscaledFont,
Float aSize) {
return MakeAndAddRef<ScaledFontWin>(static_cast<const LOGFONT*>(aLogFont),
aUnscaledFont, aSize);
}
#endif // WIN32
already_AddRefed<DrawTarget> Factory::CreateDrawTargetWithSkCanvas(
SkCanvas* aCanvas) {
RefPtr<DrawTargetSkia> newTarget = new DrawTargetSkia();
if (!newTarget->Init(aCanvas)) {
return nullptr;
}
return newTarget.forget();
}
void Factory::PurgeAllCaches() {}
already_AddRefed<DrawTarget> Factory::CreateDrawTargetForCairoSurface(
cairo_surface_t* aSurface, const IntSize& aSize, SurfaceFormat* aFormat) {
if (!AllowedSurfaceSize(aSize)) {
gfxWarning() << "Allowing surface with invalid size (Cairo) " << aSize;
}
RefPtr<DrawTarget> retVal;
#ifdef USE_CAIRO
RefPtr<DrawTargetCairo> newTarget = new DrawTargetCairo();
if (newTarget->Init(aSurface, aSize, aFormat)) {
retVal = newTarget;
}
#endif
return retVal.forget();
}
already_AddRefed<SourceSurface> Factory::CreateSourceSurfaceForCairoSurface(
cairo_surface_t* aSurface, const IntSize& aSize, SurfaceFormat aFormat) {
if (aSize.width <= 0 || aSize.height <= 0) {
gfxWarning() << "Can't create a SourceSurface without a valid size";
return nullptr;
}
#ifdef USE_CAIRO
return MakeAndAddRef<SourceSurfaceCairo>(aSurface, aSize, aFormat);
#else
return nullptr;
#endif
}
already_AddRefed<DataSourceSurface> Factory::CreateWrappingDataSourceSurface(
uint8_t* aData, int32_t aStride, const IntSize& aSize,
SurfaceFormat aFormat,
SourceSurfaceDeallocator aDeallocator /* = nullptr */,
void* aClosure /* = nullptr */) {
// Just check for negative/zero size instead of the full AllowedSurfaceSize()
// - since the data is already allocated we do not need to check for a
// possible overflow - it already worked.
if (aSize.width <= 0 || aSize.height <= 0) {
return nullptr;
}
if (!aDeallocator && aClosure) {
return nullptr;
}
MOZ_ASSERT(aData);
RefPtr<SourceSurfaceRawData> newSurf = new SourceSurfaceRawData();
newSurf->InitWrappingData(aData, aSize, aStride, aFormat, aDeallocator,
aClosure);
return newSurf.forget();
}
already_AddRefed<DataSourceSurface> Factory::CreateDataSourceSurface(
const IntSize& aSize, SurfaceFormat aFormat, bool aZero) {
if (!AllowedSurfaceSize(aSize)) {
gfxCriticalError(LoggerOptionsBasedOnSize(aSize))
<< "Failed to allocate a surface due to invalid size (DSS) " << aSize;
return nullptr;
}
// Skia doesn't support RGBX, so memset RGBX to 0xFF
bool clearSurface = aZero || aFormat == SurfaceFormat::B8G8R8X8;
uint8_t clearValue = aFormat == SurfaceFormat::B8G8R8X8 ? 0xFF : 0;
RefPtr<SourceSurfaceAlignedRawData> newSurf =
new SourceSurfaceAlignedRawData();
if (newSurf->Init(aSize, aFormat, clearSurface, clearValue)) {
return newSurf.forget();
}
gfxWarning() << "CreateDataSourceSurface failed in init";
return nullptr;
}
already_AddRefed<DataSourceSurface> Factory::CreateDataSourceSurfaceWithStride(
const IntSize& aSize, SurfaceFormat aFormat, int32_t aStride, bool aZero) {
if (!AllowedSurfaceSize(aSize) ||
aStride < aSize.width * BytesPerPixel(aFormat)) {
gfxCriticalError(LoggerOptionsBasedOnSize(aSize))
<< "CreateDataSourceSurfaceWithStride failed with bad stride "
<< aStride << ", " << aSize << ", " << aFormat;
return nullptr;
}
// Skia doesn't support RGBX, so memset RGBX to 0xFF
bool clearSurface = aZero || aFormat == SurfaceFormat::B8G8R8X8;
uint8_t clearValue = aFormat == SurfaceFormat::B8G8R8X8 ? 0xFF : 0;
RefPtr<SourceSurfaceAlignedRawData> newSurf =
new SourceSurfaceAlignedRawData();
if (newSurf->Init(aSize, aFormat, clearSurface, clearValue, aStride)) {
return newSurf.forget();
}
gfxCriticalError(LoggerOptionsBasedOnSize(aSize))
<< "CreateDataSourceSurfaceWithStride failed to initialize " << aSize
<< ", " << aFormat << ", " << aStride << ", " << aZero;
return nullptr;
}
already_AddRefed<DataSourceSurface> Factory::CopyDataSourceSurface(
DataSourceSurface* aSource) {
// Don't worry too much about speed.
MOZ_ASSERT(aSource->GetFormat() == SurfaceFormat::R8G8B8A8 ||
aSource->GetFormat() == SurfaceFormat::R8G8B8X8 ||
aSource->GetFormat() == SurfaceFormat::B8G8R8A8 ||
aSource->GetFormat() == SurfaceFormat::B8G8R8X8);
DataSourceSurface::ScopedMap srcMap(aSource, DataSourceSurface::READ);
if (NS_WARN_IF(!srcMap.IsMapped())) {
MOZ_ASSERT_UNREACHABLE("CopyDataSourceSurface: Failed to map surface.");
return nullptr;
}
IntSize size = aSource->GetSize();
SurfaceFormat format = aSource->GetFormat();
RefPtr<DataSourceSurface> dst = CreateDataSourceSurfaceWithStride(
size, format, srcMap.GetStride(), /* aZero */ false);
if (NS_WARN_IF(!dst)) {
return nullptr;
}
DataSourceSurface::ScopedMap dstMap(dst, DataSourceSurface::WRITE);
if (NS_WARN_IF(!dstMap.IsMapped())) {
MOZ_ASSERT_UNREACHABLE("CopyDataSourceSurface: Failed to map surface.");
return nullptr;
}
SwizzleData(srcMap.GetData(), srcMap.GetStride(), format, dstMap.GetData(),
dstMap.GetStride(), format, size);
return dst.forget();
}
void Factory::CopyDataSourceSurface(DataSourceSurface* aSource,
DataSourceSurface* aDest) {
// Don't worry too much about speed.
MOZ_ASSERT(aSource->GetSize() == aDest->GetSize());
MOZ_ASSERT(aSource->GetFormat() == SurfaceFormat::R8G8B8A8 ||
aSource->GetFormat() == SurfaceFormat::R8G8B8X8 ||
aSource->GetFormat() == SurfaceFormat::B8G8R8A8 ||
aSource->GetFormat() == SurfaceFormat::B8G8R8X8);
MOZ_ASSERT(aDest->GetFormat() == SurfaceFormat::R8G8B8A8 ||
aDest->GetFormat() == SurfaceFormat::R8G8B8X8 ||
aDest->GetFormat() == SurfaceFormat::B8G8R8A8 ||
aDest->GetFormat() == SurfaceFormat::B8G8R8X8 ||
aDest->GetFormat() == SurfaceFormat::R5G6B5_UINT16);
DataSourceSurface::MappedSurface srcMap;
DataSourceSurface::MappedSurface destMap;
if (!aSource->Map(DataSourceSurface::MapType::READ, &srcMap) ||
!aDest->Map(DataSourceSurface::MapType::WRITE, &destMap)) {
MOZ_ASSERT(false, "CopyDataSourceSurface: Failed to map surface.");
return;
}
SwizzleData(srcMap.mData, srcMap.mStride, aSource->GetFormat(), destMap.mData,
destMap.mStride, aDest->GetFormat(), aSource->GetSize());
aSource->Unmap();
aDest->Unmap();
}
#ifdef WIN32
/* static */
already_AddRefed<DataSourceSurface>
Factory::CreateBGRA8DataSourceSurfaceForD3D11Texture(
ID3D11Texture2D* aSrcTexture, uint32_t aArrayIndex) {
D3D11_TEXTURE2D_DESC srcDesc = {0};
aSrcTexture->GetDesc(&srcDesc);
RefPtr<gfx::DataSourceSurface> destTexture =
gfx::Factory::CreateDataSourceSurface(
IntSize(srcDesc.Width, srcDesc.Height), gfx::SurfaceFormat::B8G8R8A8);
if (NS_WARN_IF(!destTexture)) {
return nullptr;
}
if (!ReadbackTexture(destTexture, aSrcTexture, aArrayIndex)) {
return nullptr;
}
return destTexture.forget();
}
/* static */ nsresult Factory::CreateSdbForD3D11Texture(
ID3D11Texture2D* aSrcTexture, const IntSize& aSrcSize,
layers::SurfaceDescriptorBuffer& aSdBuffer,
const std::function<layers::MemoryOrShmem(uint32_t)>& aAllocate) {
D3D11_TEXTURE2D_DESC srcDesc = {0};
aSrcTexture->GetDesc(&srcDesc);
if (srcDesc.Width != uint32_t(aSrcSize.width) ||
srcDesc.Height != uint32_t(aSrcSize.height) ||
srcDesc.Format != DXGI_FORMAT_B8G8R8A8_UNORM) {
return NS_ERROR_NOT_IMPLEMENTED;
}
const auto format = gfx::SurfaceFormat::B8G8R8A8;
uint8_t* buffer = nullptr;
int32_t stride = 0;
nsresult rv = layers::Image::AllocateSurfaceDescriptorBufferRgb(
aSrcSize, format, buffer, aSdBuffer, stride, aAllocate);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!ReadbackTexture(buffer, stride, aSrcTexture)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
/* static */
template <typename DestTextureT>
bool Factory::ConvertSourceAndRetryReadback(DestTextureT* aDestCpuTexture,
ID3D11Texture2D* aSrcTexture,
uint32_t aArrayIndex) {
RefPtr<ID3D11Device> device;
aSrcTexture->GetDevice(getter_AddRefs(device));
if (!device) {
gfxWarning() << "Failed to get D3D11 device from source texture";
return false;
}
nsAutoCString error;
std::unique_ptr<DXVA2Manager> manager(
DXVA2Manager::CreateD3D11DXVA(nullptr, error, device));
if (!manager) {
gfxWarning() << "Failed to create DXVA2 manager!";
return false;
}
RefPtr<ID3D11Texture2D> newSrcTexture;
HRESULT hr = manager->CopyToBGRATexture(aSrcTexture, aArrayIndex,
getter_AddRefs(newSrcTexture));
if (FAILED(hr)) {
gfxWarning() << "Failed to copy to BGRA texture.";
return false;
}
return ReadbackTexture(aDestCpuTexture, newSrcTexture);
}
/* static */
bool Factory::ReadbackTexture(layers::TextureData* aDestCpuTexture,
ID3D11Texture2D* aSrcTexture) {
layers::MappedTextureData mappedData;
if (!aDestCpuTexture->BorrowMappedData(mappedData)) {
gfxWarning() << "Could not access in-memory texture";
return false;
}
D3D11_TEXTURE2D_DESC srcDesc = {0};
aSrcTexture->GetDesc(&srcDesc);
// Special case: If the source and destination have different formats and the
// destination is B8G8R8A8 then convert the source to B8G8R8A8 and readback.
if ((srcDesc.Format != DXGIFormat(mappedData.format)) &&
(mappedData.format == SurfaceFormat::B8G8R8A8)) {
return ConvertSourceAndRetryReadback(aDestCpuTexture, aSrcTexture);
}
if ((IntSize(srcDesc.Width, srcDesc.Height) != mappedData.size) ||
(srcDesc.Format != DXGIFormat(mappedData.format))) {
gfxWarning() << "Attempted readback between incompatible textures";
return false;
}
return ReadbackTexture(mappedData.data, mappedData.stride, aSrcTexture);
}
/* static */
bool Factory::ReadbackTexture(DataSourceSurface* aDestCpuTexture,
ID3D11Texture2D* aSrcTexture,
uint32_t aArrayIndex) {
D3D11_TEXTURE2D_DESC srcDesc = {0};
aSrcTexture->GetDesc(&srcDesc);
// Special case: If the source and destination have different formats and the
// destination is B8G8R8A8 then convert the source to B8G8R8A8 and readback.
if ((srcDesc.Format != DXGIFormat(aDestCpuTexture->GetFormat())) &&
(aDestCpuTexture->GetFormat() == SurfaceFormat::B8G8R8A8)) {
return ConvertSourceAndRetryReadback(aDestCpuTexture, aSrcTexture,
aArrayIndex);
}
if ((IntSize(srcDesc.Width, srcDesc.Height) != aDestCpuTexture->GetSize()) ||
(srcDesc.Format != DXGIFormat(aDestCpuTexture->GetFormat()))) {
gfxWarning() << "Attempted readback between incompatible textures";
return false;
}
gfx::DataSourceSurface::MappedSurface mappedSurface;
if (!aDestCpuTexture->Map(gfx::DataSourceSurface::WRITE, &mappedSurface)) {
return false;
}
MOZ_ASSERT(aArrayIndex == 0);
bool ret =
ReadbackTexture(mappedSurface.mData, mappedSurface.mStride, aSrcTexture);
aDestCpuTexture->Unmap();
return ret;
}
/* static */
bool Factory::ReadbackTexture(uint8_t* aDestData, int32_t aDestStride,
ID3D11Texture2D* aSrcTexture) {
MOZ_ASSERT(aDestData && aDestStride && aSrcTexture);
RefPtr<ID3D11Device> device;
aSrcTexture->GetDevice(getter_AddRefs(device));
if (!device) {
gfxWarning() << "Failed to get D3D11 device from source texture";
return false;
}
RefPtr<ID3D11DeviceContext> context;
device->GetImmediateContext(getter_AddRefs(context));
if (!context) {
gfxWarning() << "Could not get an immediate D3D11 context";
return false;
}
RefPtr<IDXGIKeyedMutex> mutex;
HRESULT hr = aSrcTexture->QueryInterface(__uuidof(IDXGIKeyedMutex),
(void**)getter_AddRefs(mutex));
if (SUCCEEDED(hr) && mutex) {
hr = mutex->AcquireSync(0, 2000);
if (hr != S_OK) {
gfxWarning() << "Could not acquire DXGI surface lock in 2 seconds";
return false;
}
}
D3D11_TEXTURE2D_DESC srcDesc = {0};
aSrcTexture->GetDesc(&srcDesc);
srcDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
srcDesc.Usage = D3D11_USAGE_STAGING;
srcDesc.BindFlags = 0;
srcDesc.MiscFlags = 0;
srcDesc.MipLevels = 1;
RefPtr<ID3D11Texture2D> srcCpuTexture;
hr =
device->CreateTexture2D(&srcDesc, nullptr, getter_AddRefs(srcCpuTexture));
if (FAILED(hr)) {
gfxWarning() << "Could not create source texture for mapping";
if (mutex) {
mutex->ReleaseSync(0);
}
return false;
}
context->CopyResource(srcCpuTexture, aSrcTexture);
if (mutex) {
mutex->ReleaseSync(0);
mutex = nullptr;
}
D3D11_MAPPED_SUBRESOURCE srcMap;
hr = context->Map(srcCpuTexture, 0, D3D11_MAP_READ, 0, &srcMap);
if (FAILED(hr)) {
gfxWarning() << "Could not map source texture";
return false;
}
uint32_t width = srcDesc.Width;
uint32_t height = srcDesc.Height;
int bpp = BytesPerPixel(gfx::ToPixelFormat(srcDesc.Format));
for (uint32_t y = 0; y < height; y++) {
memcpy(aDestData + aDestStride * y,
(unsigned char*)(srcMap.pData) + srcMap.RowPitch * y, width * bpp);
}
context->Unmap(srcCpuTexture, 0);
return true;
}
#endif // WIN32
// static
void CriticalLogger::OutputMessage(const std::string& aString, int aLevel,
bool aNoNewline) {
if (Factory::GetLogForwarder()) {
Factory::GetLogForwarder()->Log(aString);
}
BasicLogger::OutputMessage(aString, aLevel, aNoNewline);
}
void CriticalLogger::CrashAction(LogReason aReason) {
if (Factory::GetLogForwarder()) {
Factory::GetLogForwarder()->CrashAction(aReason);
}
}
#ifdef WIN32
void LogWStr(const wchar_t* aWStr, std::stringstream& aOut) {
int n =
WideCharToMultiByte(CP_ACP, 0, aWStr, -1, nullptr, 0, nullptr, nullptr);
if (n > 1) {
std::vector<char> str(n);
WideCharToMultiByte(CP_ACP, 0, aWStr, -1, str.data(), n, nullptr, nullptr);
aOut << str.data();
}
}
#endif
} // namespace mozilla::gfx