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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "Types.h"
#include "gfxImageSurface.h"
#include "gfxPlatform.h"
#include "mozilla/RefPtr.h"
#include "mozilla/gfx/Point.h"
#include "mozilla/layers/BufferTexture.h"
#include "mozilla/layers/LayersTypes.h"
#include "mozilla/layers/TextureClient.h"
#include "mozilla/layers/TextureHost.h"
#ifdef XP_WIN
# include "IMFYCbCrImage.h"
# include "mozilla/gfx/DeviceManagerDx.h"
# include "mozilla/layers/D3D11YCbCrImage.h"
# include "mozilla/layers/TextureD3D11.h"
#endif
namespace mozilla {
namespace layers {
using gfx::BackendType;
using gfx::IntSize;
using gfx::SurfaceFormat;
/**
* Create a YCbCrTextureClient according to the given backend.
*/
static already_AddRefed<TextureClient> CreateYCbCrTextureClientWithBackend(
LayersBackend aLayersBackend) {
TextureData* data = nullptr;
IntSize size = IntSize(200, 150);
IntSize ySize = IntSize(400, 300);
RefPtr<gfxImageSurface> ySurface =
new gfxImageSurface(ySize, SurfaceFormat::A8);
RefPtr<gfxImageSurface> cbSurface =
new gfxImageSurface(size, SurfaceFormat::A8);
RefPtr<gfxImageSurface> crSurface =
new gfxImageSurface(size, SurfaceFormat::A8);
PlanarYCbCrData clientData;
clientData.mYChannel = ySurface->Data();
clientData.mCbChannel = cbSurface->Data();
clientData.mCrChannel = crSurface->Data();
clientData.mPictureRect = IntRect(IntPoint(0, 0), ySurface->GetSize());
clientData.mYStride = ySurface->Stride();
clientData.mCbCrStride = cbSurface->Stride();
clientData.mStereoMode = StereoMode::MONO;
clientData.mChromaSubsampling = ChromaSubsampling::HALF_WIDTH_AND_HEIGHT;
clientData.mYSkip = 0;
clientData.mCbSkip = 0;
clientData.mCrSkip = 0;
clientData.mCrSkip = 0;
// Create YCbCrTexture for basic backend.
if (aLayersBackend == LayersBackend::LAYERS_BASIC) {
return TextureClient::CreateForYCbCr(
nullptr, clientData.mPictureRect, clientData.YDataSize(),
clientData.mYStride, clientData.CbCrDataSize(), clientData.mCbCrStride,
StereoMode::MONO, gfx::ColorDepth::COLOR_8, gfx::YUVColorSpace::BT601,
gfx::ColorRange::LIMITED, clientData.mChromaSubsampling,
TextureFlags::DEALLOCATE_CLIENT);
}
if (data) {
return MakeAndAddRef<TextureClient>(data, TextureFlags::DEALLOCATE_CLIENT,
nullptr);
}
return nullptr;
}
/**
* Create a TextureClient according to the given backend.
*/
static already_AddRefed<TextureClient> CreateTextureClientWithBackend(
LayersBackend aLayersBackend) {
TextureData* data = nullptr;
SurfaceFormat format = gfxPlatform::GetPlatform()->Optimal2DFormatForContent(
gfxContentType::COLOR_ALPHA);
BackendType moz2DBackend =
gfxPlatform::GetPlatform()->GetContentBackendFor(aLayersBackend);
TextureAllocationFlags allocFlags = TextureAllocationFlags::ALLOC_DEFAULT;
IntSize size = IntSize(400, 300);
TextureFlags textureFlags = TextureFlags::DEALLOCATE_CLIENT;
if (!gfx::Factory::AllowedSurfaceSize(size)) {
return nullptr;
}
if (!data && aLayersBackend == LayersBackend::LAYERS_BASIC) {
// Create BufferTextureData.
data = BufferTextureData::Create(size, format, moz2DBackend, aLayersBackend,
textureFlags, allocFlags, nullptr);
}
if (data) {
return MakeAndAddRef<TextureClient>(data, textureFlags, nullptr);
}
return nullptr;
}
/**
* Create a TextureHost according to the given TextureClient.
*/
already_AddRefed<TextureHost> CreateTextureHostWithBackend(
TextureClient* aClient, ISurfaceAllocator* aDeallocator,
LayersBackend& aLayersBackend) {
if (!aClient) {
return nullptr;
}
// client serialization
SurfaceDescriptor descriptor;
ReadLockDescriptor readLock = null_t();
RefPtr<TextureHost> textureHost;
aClient->ToSurfaceDescriptor(descriptor);
wr::MaybeExternalImageId id = Nothing();
return TextureHost::Create(descriptor, readLock, aDeallocator, aLayersBackend,
aClient->GetFlags(), id);
}
} // namespace layers
} // namespace mozilla
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