gecko-dev/gfx/layers/TextureDIB.cpp

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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 "TextureDIB.h"
#include "gfx2DGlue.h"
#include "mozilla/gfx/DataSurfaceHelpers.h" // For BufferSizeFromDimensions
#include "mozilla/layers/ISurfaceAllocator.h"
#include "mozilla/ipc/ProtocolUtils.h"
namespace mozilla {
using namespace gfx;
namespace layers {
/**
* Can only be drawn into through Cairo.
* The coresponding TextureHost depends on the compositor
*/
class MemoryDIBTextureData : public DIBTextureData
{
public:
virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;
virtual TextureData*
CreateSimilar(LayersIPCChannel* aAllocator,
LayersBackend aLayersBackend,
TextureFlags aFlags = TextureFlags::DEFAULT,
TextureAllocationFlags aAllocFlags = ALLOC_DEFAULT) const override;
virtual bool UpdateFromSurface(gfx::SourceSurface* aSurface) override;
static
DIBTextureData* Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat);
virtual void Deallocate(LayersIPCChannel* aAllocator) override
{
mSurface = nullptr;
}
MemoryDIBTextureData(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
gfxWindowsSurface* aSurface)
: DIBTextureData(aSize, aFormat, aSurface)
{
MOZ_COUNT_CTOR(MemoryDIBTextureData);
}
virtual ~MemoryDIBTextureData()
{
MOZ_COUNT_DTOR(MemoryDIBTextureData);
}
};
/**
* Can only be drawn into through Cairo.
* The coresponding TextureHost depends on the compositor
*/
class ShmemDIBTextureData : public DIBTextureData
{
public:
virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;
virtual TextureData*
CreateSimilar(LayersIPCChannel* aAllocator,
LayersBackend aLayersBackend,
TextureFlags aFlags = TextureFlags::DEFAULT,
TextureAllocationFlags aAllocFlags = ALLOC_DEFAULT) const override;
virtual bool UpdateFromSurface(gfx::SourceSurface* aSurface) override;
static
DIBTextureData* Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
LayersIPCChannel* aAllocator);
void DeallocateData()
{
if (mSurface) {
::DeleteObject(mBitmap);
::DeleteDC(mDC);
::CloseHandle(mFileMapping);
mBitmap = NULL;
mDC = NULL;
mFileMapping = NULL;
mSurface = nullptr;
}
}
virtual void Deallocate(LayersIPCChannel* aAllocator) override
{
DeallocateData();
}
ShmemDIBTextureData(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
gfxWindowsSurface* aSurface,
HANDLE aFileMapping, HANDLE aHostHandle,
HDC aDC, HBITMAP aBitmap)
: DIBTextureData(aSize, aFormat, aSurface)
, mFileMapping(aFileMapping)
, mHostHandle(aHostHandle)
, mDC(aDC)
, mBitmap(aBitmap)
{
MOZ_COUNT_CTOR(ShmemDIBTextureData);
}
virtual ~ShmemDIBTextureData()
{
MOZ_COUNT_DTOR(ShmemDIBTextureData);
// The host side has its own references and handles to this data, we can
// safely clear ours.
DeallocateData();
}
HANDLE mFileMapping;
HANDLE mHostHandle;
HDC mDC;
HBITMAP mBitmap;
};
void
DIBTextureData::FillInfo(TextureData::Info& aInfo) const
{
aInfo.size = mSize;
aInfo.format = mFormat;
aInfo.hasIntermediateBuffer = true;
aInfo.hasSynchronization = false;
aInfo.supportsMoz2D = true;
aInfo.canExposeMappedData = false;
}
already_AddRefed<gfx::DrawTarget>
DIBTextureData::BorrowDrawTarget()
{
return gfxPlatform::GetPlatform()->CreateDrawTargetForSurface(mSurface, mSize);
}
DIBTextureData*
DIBTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
LayersIPCChannel* aAllocator)
{
if (!aAllocator) {
return nullptr;
}
if (aFormat == gfx::SurfaceFormat::UNKNOWN) {
return nullptr;
}
if (aAllocator->IsSameProcess()) {
return MemoryDIBTextureData::Create(aSize, aFormat);
} else {
return ShmemDIBTextureData::Create(aSize, aFormat, aAllocator);
}
}
TextureData*
MemoryDIBTextureData::CreateSimilar(LayersIPCChannel* aAllocator,
LayersBackend aLayersBackend,
TextureFlags aFlags,
TextureAllocationFlags aAllocFlags) const
{
if (!aAllocator) {
return nullptr;
}
return MemoryDIBTextureData::Create(mSize, mFormat);
}
bool
MemoryDIBTextureData::Serialize(SurfaceDescriptor& aOutDescriptor)
{
MOZ_ASSERT(mSurface);
// The host will release this ref when it receives the surface descriptor.
// We AddRef in case we die before the host receives the pointer.
aOutDescriptor = SurfaceDescriptorDIB(reinterpret_cast<uintptr_t>(mSurface.get()));
mSurface.get()->AddRef();
return true;
}
DIBTextureData*
MemoryDIBTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat)
{
RefPtr<gfxWindowsSurface> surface
= new gfxWindowsSurface(aSize, SurfaceFormatToImageFormat(aFormat));
if (!surface || surface->CairoStatus()) {
NS_WARNING("Could not create DIB surface");
return nullptr;
}
return new MemoryDIBTextureData(aSize, aFormat, surface);
}
bool
MemoryDIBTextureData::UpdateFromSurface(gfx::SourceSurface* aSurface)
{
RefPtr<gfxImageSurface> imgSurf = mSurface->GetAsImageSurface();
RefPtr<DataSourceSurface> srcSurf = aSurface->GetDataSurface();
if (!srcSurf) {
gfxCriticalError() << "Failed to GetDataSurface in UpdateFromSurface (DIB).";
return false;
}
DataSourceSurface::MappedSurface sourceMap;
if (!srcSurf->Map(gfx::DataSourceSurface::READ, &sourceMap)) {
gfxCriticalError() << "Failed to map source surface for UpdateFromSurface.";
return false;
}
for (int y = 0; y < srcSurf->GetSize().height; y++) {
memcpy(imgSurf->Data() + imgSurf->Stride() * y,
sourceMap.mData + sourceMap.mStride * y,
srcSurf->GetSize().width * BytesPerPixel(srcSurf->GetFormat()));
}
srcSurf->Unmap();
return true;
}
TextureData*
ShmemDIBTextureData::CreateSimilar(LayersIPCChannel* aAllocator,
LayersBackend aLayersBackend,
TextureFlags aFlags,
TextureAllocationFlags aAllocFlags) const
{
if (!aAllocator) {
return nullptr;
}
return ShmemDIBTextureData::Create(mSize, mFormat, aAllocator);
}
bool
ShmemDIBTextureData::UpdateFromSurface(gfx::SourceSurface* aSurface)
{
RefPtr<DataSourceSurface> srcSurf = aSurface->GetDataSurface();
if (!srcSurf) {
gfxCriticalError() << "Failed to GetDataSurface in UpdateFromSurface (DTD).";
return false;
}
DataSourceSurface::MappedSurface sourceMap;
if (!srcSurf->Map(gfx::DataSourceSurface::READ, &sourceMap)) {
gfxCriticalError() << "Failed to map source surface for UpdateFromSurface.";
return false;
}
GdiFlush();
uint32_t stride = mSize.width * BytesPerPixel(mFormat);
uint8_t* data = (uint8_t*)::MapViewOfFile(mFileMapping, FILE_MAP_WRITE, 0, 0, stride * mSize.height);
if (!data) {
gfxCriticalError() << "Failed to map view of file for UpdateFromSurface.";
srcSurf->Unmap();
return false;
}
for (int y = 0; y < srcSurf->GetSize().height; y++) {
memcpy(data + stride * y,
sourceMap.mData + sourceMap.mStride * y,
srcSurf->GetSize().width * BytesPerPixel(srcSurf->GetFormat()));
}
::UnmapViewOfFile(data);
srcSurf->Unmap();
return true;
}
bool
ShmemDIBTextureData::Serialize(SurfaceDescriptor& aOutDescriptor)
{
if (mFormat == gfx::SurfaceFormat::UNKNOWN) {
return false;
}
::GdiFlush();
aOutDescriptor = SurfaceDescriptorFileMapping((WindowsHandle)mHostHandle, mFormat, mSize);
return true;
}
DIBTextureData*
ShmemDIBTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
LayersIPCChannel* aAllocator)
{
MOZ_ASSERT(aAllocator->GetParentPid() != base::ProcessId());
DWORD mapSize = aSize.width * aSize.height * BytesPerPixel(aFormat);
HANDLE fileMapping = ::CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, mapSize, NULL);
if (!fileMapping) {
gfxCriticalError() << "Failed to create memory file mapping for " << mapSize << " bytes.";
return nullptr;
}
BITMAPV4HEADER header;
memset(&header, 0, sizeof(BITMAPV4HEADER));
header.bV4Size = sizeof(BITMAPV4HEADER);
header.bV4Width = aSize.width;
header.bV4Height = -LONG(aSize.height); // top-to-buttom DIB
header.bV4Planes = 1;
header.bV4BitCount = 32;
header.bV4V4Compression = BI_BITFIELDS;
header.bV4RedMask = 0x00FF0000;
header.bV4GreenMask = 0x0000FF00;
header.bV4BlueMask = 0x000000FF;
HDC nulldc = ::GetDC(NULL);
HDC dc = ::CreateCompatibleDC(nulldc);
::ReleaseDC(nullptr, nulldc);
if (!dc) {
::CloseHandle(fileMapping);
gfxCriticalError() << "Failed to create DC for bitmap.";
return nullptr;
}
void* bits;
HBITMAP bitmap = ::CreateDIBSection(dc, (BITMAPINFO*)&header,
DIB_RGB_COLORS, &bits,
fileMapping, 0);
if (!bitmap) {
gfxCriticalError() << "Failed to create DIB section for a bitmap of size "
<< aSize << " and mapSize " << mapSize;
::CloseHandle(fileMapping);
::DeleteDC(dc);
return nullptr;
}
::SelectObject(dc, bitmap);
RefPtr<gfxWindowsSurface> surface = new gfxWindowsSurface(dc, 0);
if (surface->CairoStatus())
{
::DeleteObject(bitmap);
::DeleteDC(dc);
::CloseHandle(fileMapping);
gfxCriticalError() << "Could not create surface, status: "
<< surface->CairoStatus();
return nullptr;
}
HANDLE hostHandle = NULL;
if (!ipc::DuplicateHandle(fileMapping, aAllocator->GetParentPid(),
&hostHandle, 0, DUPLICATE_SAME_ACCESS)) {
gfxCriticalError() << "Failed to duplicate handle to parent process for surface.";
::DeleteObject(bitmap);
::DeleteDC(dc);
::CloseHandle(fileMapping);
return nullptr;
}
return new ShmemDIBTextureData(aSize, aFormat, surface,
fileMapping, hostHandle,
dc, bitmap);
}
bool
TextureHostDirectUpload::Lock()
{
MOZ_ASSERT(!mIsLocked);
mIsLocked = true;
return true;
}
void
TextureHostDirectUpload::Unlock()
{
MOZ_ASSERT(mIsLocked);
mIsLocked = false;
}
void
TextureHostDirectUpload::SetTextureSourceProvider(TextureSourceProvider* aProvider)
{
mProvider = aProvider;
}
void
TextureHostDirectUpload::DeallocateDeviceData()
{
if (mTextureSource) {
mTextureSource->DeallocateDeviceData();
}
}
bool
TextureHostDirectUpload::BindTextureSource(CompositableTextureSourceRef& aTexture)
{
if (!mTextureSource) {
Updated();
}
aTexture = mTextureSource;
return !!aTexture;
}
DIBTextureHost::DIBTextureHost(TextureFlags aFlags,
const SurfaceDescriptorDIB& aDescriptor)
: TextureHostDirectUpload(aFlags, SurfaceFormat::B8G8R8X8, IntSize())
{
// We added an extra ref for transport, so we shouldn't AddRef now.
mSurface =
dont_AddRef(reinterpret_cast<gfxWindowsSurface*>(aDescriptor.surface()));
MOZ_ASSERT(mSurface);
mSize = mSurface->GetSize();
mFormat = mSurface->GetSurfaceFormat();
}
void
DIBTextureHost::UpdatedInternal(const nsIntRegion* aRegion)
{
if (!mProvider) {
// This can happen if we send textures to a compositable that isn't yet
// attached to a layer.
return;
}
if (!mTextureSource) {
mTextureSource = mProvider->CreateDataTextureSource(mFlags);
}
if (mSurface->CairoStatus()) {
gfxWarning() << "Bad Cairo surface internal update " << mSurface->CairoStatus();
mTextureSource = nullptr;
return;
}
RefPtr<gfxImageSurface> imgSurf = mSurface->GetAsImageSurface();
RefPtr<DataSourceSurface> surf = Factory::CreateWrappingDataSourceSurface(imgSurf->Data(), imgSurf->Stride(), mSize, mFormat);
if (!surf || !mTextureSource->Update(surf, const_cast<nsIntRegion*>(aRegion))) {
mTextureSource = nullptr;
}
ReadUnlock();
}
TextureHostFileMapping::TextureHostFileMapping(TextureFlags aFlags,
const SurfaceDescriptorFileMapping& aDescriptor)
: TextureHostDirectUpload(aFlags, aDescriptor.format(), aDescriptor.size())
, mFileMapping((HANDLE)aDescriptor.handle())
{
}
TextureHostFileMapping::~TextureHostFileMapping()
{
::CloseHandle(mFileMapping);
}
UserDataKey kFileMappingKey;
static void UnmapFileData(void* aData)
{
MOZ_ASSERT(aData);
::UnmapViewOfFile(aData);
}
void
TextureHostFileMapping::UpdatedInternal(const nsIntRegion* aRegion)
{
if (!mProvider) {
// This can happen if we send textures to a compositable that isn't yet
// attached to a layer.
return;
}
if (!mTextureSource) {
mTextureSource = mProvider->CreateDataTextureSource(mFlags);
}
uint8_t* data = nullptr;
int32_t totalBytes = BufferSizeFromDimensions(mSize.width, mSize.height, BytesPerPixel(mFormat));
if (totalBytes > 0) {
data = (uint8_t*)::MapViewOfFile(mFileMapping, FILE_MAP_READ, 0, 0, totalBytes);
}
if (data) {
RefPtr<DataSourceSurface> surf = Factory::CreateWrappingDataSourceSurface(data, mSize.width * BytesPerPixel(mFormat), mSize, mFormat);
if (surf) {
surf->AddUserData(&kFileMappingKey, data, UnmapFileData);
if (!mTextureSource->Update(surf, const_cast<nsIntRegion*>(aRegion))) {
mTextureSource = nullptr;
}
} else {
mTextureSource = nullptr;
}
} else {
mTextureSource = nullptr;
}
ReadUnlock();
}
}
}