зеркало из https://github.com/mozilla/gecko-dev.git
121 строка
4.0 KiB
C++
121 строка
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MacIOSurfaceTextureClientOGL.h"
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#include "mozilla/gfx/MacIOSurface.h"
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#include "MacIOSurfaceHelpers.h"
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#include "gfxPlatform.h"
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namespace mozilla {
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namespace layers {
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using namespace gfx;
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MacIOSurfaceTextureData::MacIOSurfaceTextureData(MacIOSurface* aSurface,
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BackendType aBackend)
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: mSurface(aSurface), mBackend(aBackend) {
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MOZ_ASSERT(mSurface);
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}
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MacIOSurfaceTextureData::~MacIOSurfaceTextureData() = default;
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// static
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MacIOSurfaceTextureData* MacIOSurfaceTextureData::Create(MacIOSurface* aSurface,
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BackendType aBackend) {
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MOZ_ASSERT(aSurface);
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if (!aSurface) {
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return nullptr;
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}
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return new MacIOSurfaceTextureData(aSurface, aBackend);
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}
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MacIOSurfaceTextureData* MacIOSurfaceTextureData::Create(const IntSize& aSize,
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SurfaceFormat aFormat,
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BackendType aBackend) {
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if (aFormat != SurfaceFormat::B8G8R8A8 &&
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aFormat != SurfaceFormat::B8G8R8X8) {
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return nullptr;
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}
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RefPtr<MacIOSurface> surf = MacIOSurface::CreateIOSurface(
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aSize.width, aSize.height, aFormat == SurfaceFormat::B8G8R8A8);
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if (!surf) {
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return nullptr;
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}
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return Create(surf, aBackend);
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}
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bool MacIOSurfaceTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
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aOutDescriptor = SurfaceDescriptorMacIOSurface(mSurface->GetIOSurfaceID(),
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!mSurface->HasAlpha(),
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mSurface->GetYUVColorSpace());
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return true;
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}
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void MacIOSurfaceTextureData::GetSubDescriptor(
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RemoteDecoderVideoSubDescriptor* const aOutDesc) {
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*aOutDesc = SurfaceDescriptorMacIOSurface(mSurface->GetIOSurfaceID(),
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!mSurface->HasAlpha(),
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mSurface->GetYUVColorSpace());
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}
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void MacIOSurfaceTextureData::FillInfo(TextureData::Info& aInfo) const {
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aInfo.size = gfx::IntSize(mSurface->GetDevicePixelWidth(),
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mSurface->GetDevicePixelHeight());
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aInfo.format =
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mSurface->HasAlpha() ? SurfaceFormat::B8G8R8A8 : SurfaceFormat::B8G8R8X8;
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aInfo.hasSynchronization = false;
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aInfo.supportsMoz2D = true;
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aInfo.canExposeMappedData = false;
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}
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bool MacIOSurfaceTextureData::Lock(OpenMode) {
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mSurface->Lock(false);
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return true;
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}
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void MacIOSurfaceTextureData::Unlock() { mSurface->Unlock(false); }
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already_AddRefed<DataSourceSurface> MacIOSurfaceTextureData::GetAsSurface() {
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RefPtr<SourceSurface> surf = CreateSourceSurfaceFromMacIOSurface(mSurface);
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return surf->GetDataSurface();
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}
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already_AddRefed<DrawTarget> MacIOSurfaceTextureData::BorrowDrawTarget() {
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MOZ_ASSERT(mBackend != BackendType::NONE);
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if (mBackend == BackendType::NONE) {
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// shouldn't happen, but degrade gracefully
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return nullptr;
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}
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return Factory::CreateDrawTargetForData(
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mBackend, (unsigned char*)mSurface->GetBaseAddress(),
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IntSize(mSurface->GetWidth(), mSurface->GetHeight()),
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mSurface->GetBytesPerRow(),
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mSurface->HasAlpha() ? SurfaceFormat::B8G8R8A8 : SurfaceFormat::B8G8R8X8,
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true);
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}
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void MacIOSurfaceTextureData::Deallocate(LayersIPCChannel*) {
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mSurface = nullptr;
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}
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void MacIOSurfaceTextureData::Forget(LayersIPCChannel*) { mSurface = nullptr; }
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bool MacIOSurfaceTextureData::UpdateFromSurface(gfx::SourceSurface* aSurface) {
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RefPtr<DrawTarget> dt = BorrowDrawTarget();
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if (!dt) {
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return false;
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}
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dt->CopySurface(aSurface, IntRect(IntPoint(), aSurface->GetSize()),
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IntPoint());
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return true;
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}
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} // namespace layers
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} // namespace mozilla
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