forked from mirrors/gecko-dev
b1e7992b82
Backed out changeset 1099d6f15f9f (bug 1265824) Backed out changeset b5ba15b1a70f (bug 1265824) Backed out changeset 51795de4adaf (bug 1265824) Backed out changeset be68741ff4ce (bug 1265824) Backed out changeset 4731dc56702d (bug 1265824) Backed out changeset 984133e9614b (bug 1265824) Backed out changeset efce316a4425 (bug 1265824) Backed out changeset 367abce30668 (bug 1265824)
106 lines
4 KiB
C++
106 lines
4 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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#ifndef MOZILLA_LAYERS_BUFFERETEXTURE
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#define MOZILLA_LAYERS_BUFFERETEXTURE
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#include "mozilla/layers/TextureClient.h"
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#include "mozilla/ipc/SharedMemory.h"
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#include "mozilla/gfx/Types.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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namespace layers {
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bool ComputeHasIntermediateBuffer(gfx::SurfaceFormat aFormat,
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LayersBackend aLayersBackend);
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class BufferTextureData : public TextureData
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{
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public:
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static BufferTextureData* Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
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gfx::BackendType aMoz2DBackend,
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LayersBackend aLayersBackend,
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TextureFlags aFlags,
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TextureAllocationFlags aAllocFlags,
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LayersIPCChannel* aAllocator);
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static BufferTextureData* CreateForYCbCr(KnowsCompositor* aAllocator,
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gfx::IntSize aYSize,
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uint32_t aYStride,
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gfx::IntSize aCbCrSize,
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uint32_t aCbCrStride,
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StereoMode aStereoMode,
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YUVColorSpace aYUVColorSpace,
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uint32_t aBitDepth,
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TextureFlags aTextureFlags);
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// It is generally better to use CreateForYCbCr instead.
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// This creates a half-initialized texture since we don't know the sizes and
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// offsets in the buffer.
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static BufferTextureData* CreateForYCbCrWithBufferSize(KnowsCompositor* aAllocator,
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int32_t aSize,
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YUVColorSpace aYUVColorSpace,
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uint32_t aBitDepth,
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TextureFlags aTextureFlags);
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virtual bool Lock(OpenMode aMode) override { return true; }
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virtual void Unlock() override {}
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virtual void FillInfo(TextureData::Info& aInfo) const override;
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virtual already_AddRefed<gfx::DrawTarget> BorrowDrawTarget() override;
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virtual bool BorrowMappedData(MappedTextureData& aMap) override;
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virtual bool BorrowMappedYCbCrData(MappedYCbCrTextureData& aMap) override;
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// use TextureClient's default implementation
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virtual bool UpdateFromSurface(gfx::SourceSurface* aSurface) override;
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virtual BufferTextureData* AsBufferTextureData() override { return this; }
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// Don't use this.
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void SetDesciptor(const BufferDescriptor& aDesc);
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Maybe<gfx::IntSize> GetCbCrSize() const;
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Maybe<YUVColorSpace> GetYUVColorSpace() const;
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Maybe<uint32_t> GetBitDepth() const;
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Maybe<StereoMode> GetStereoMode() const;
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protected:
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gfx::IntSize GetSize() const;
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gfx::SurfaceFormat GetFormat() const;
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static BufferTextureData* CreateInternal(LayersIPCChannel* aAllocator,
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const BufferDescriptor& aDesc,
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gfx::BackendType aMoz2DBackend,
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int32_t aBufferSize,
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TextureFlags aTextureFlags);
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virtual uint8_t* GetBuffer() = 0;
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virtual size_t GetBufferSize() = 0;
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BufferTextureData(const BufferDescriptor& aDescriptor, gfx::BackendType aMoz2DBackend)
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: mDescriptor(aDescriptor)
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, mMoz2DBackend(aMoz2DBackend)
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{}
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RefPtr<gfx::DrawTarget> mDrawTarget;
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BufferDescriptor mDescriptor;
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gfx::BackendType mMoz2DBackend;
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};
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} // namespace
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} // namespace
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#endif
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