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Diffstat (limited to '')
-rw-r--r-- | gfx/layers/GPUVideoImage.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/gfx/layers/GPUVideoImage.h b/gfx/layers/GPUVideoImage.h new file mode 100644 index 0000000000..a9bbb5950d --- /dev/null +++ b/gfx/layers/GPUVideoImage.h @@ -0,0 +1,122 @@ +/* -*- 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/. */ + +#ifndef GFX_GPU_VIDEO_IMAGE_H +#define GFX_GPU_VIDEO_IMAGE_H + +#include "mozilla/RefPtr.h" +#include "ImageContainer.h" +#include "mozilla/layers/GPUVideoTextureClient.h" +#include "mozilla/layers/CompositableClient.h" +#include "mozilla/layers/ImageBridgeChild.h" + +namespace mozilla { +namespace gl { +class GLBlitHelper; +} +namespace layers { + +class IGPUVideoSurfaceManager { + protected: + virtual ~IGPUVideoSurfaceManager() = default; + + public: + NS_INLINE_DECL_PURE_VIRTUAL_REFCOUNTING + + virtual already_AddRefed<gfx::SourceSurface> Readback( + const SurfaceDescriptorGPUVideo& aSD) = 0; + virtual void DeallocateSurfaceDescriptor( + const SurfaceDescriptorGPUVideo& aSD) = 0; +}; + +// Represents an animated Image that is known to the GPU process. +class GPUVideoImage final : public Image { + friend class gl::GLBlitHelper; + + public: + GPUVideoImage(IGPUVideoSurfaceManager* aManager, + const SurfaceDescriptorGPUVideo& aSD, const gfx::IntSize& aSize, + const gfx::ColorDepth& aColorDepth, + gfx::YUVColorSpace aYUVColorSpace, + gfx::ColorSpace2 aColorPrimaries, + gfx::TransferFunction aTransferFunction, + gfx::ColorRange aColorRange) + : Image(nullptr, ImageFormat::GPU_VIDEO), + mSize(aSize), + mColorDepth(aColorDepth), + mColorSpace(aColorPrimaries), + mYUVColorSpace(aYUVColorSpace), + mTransferFunction(aTransferFunction), + mColorRange(aColorRange) { + // Create the TextureClient immediately since the GPUVideoTextureData + // is responsible for deallocating the SurfaceDescriptor. + // + // Use the RECYCLE texture flag, since it's likely that our 'real' + // TextureData (in the decoder thread of the GPU process) is using + // it too, and we want to make sure we don't send the delete message + // until we've stopped being used on the compositor. + mTextureClient = TextureClient::CreateWithData( + new GPUVideoTextureData(aManager, aSD, aSize), TextureFlags::RECYCLE, + ImageBridgeChild::GetSingleton().get()); + } + + virtual ~GPUVideoImage() = default; + + GPUVideoImage* AsGPUVideoImage() override { return this; } + + gfx::IntSize GetSize() const override { return mSize; } + + gfx::ColorDepth GetColorDepth() const override { return mColorDepth; } + gfx::ColorSpace2 GetColorPrimaries() const { return mColorSpace; } + gfx::YUVColorSpace GetYUVColorSpace() const { return mYUVColorSpace; } + gfx::TransferFunction GetTransferFunction() const { return mTransferFunction; } + gfx::ColorRange GetColorRange() const { return mColorRange; } + + Maybe<SurfaceDescriptor> GetDesc() override { + return GetDescFromTexClient(mTextureClient); + } + + private: + GPUVideoTextureData* GetData() const { + if (!mTextureClient) { + return nullptr; + } + TextureData* data = mTextureClient->GetInternalData(); + if (!data) { + return nullptr; + } + return data->AsGPUVideoTextureData(); + } + + public: + already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override { + GPUVideoTextureData* data = GetData(); + if (!data) { + return nullptr; + } + return data->GetAsSourceSurface(); + } + + TextureClient* GetTextureClient(KnowsCompositor* aKnowsCompositor) override { + MOZ_ASSERT(aKnowsCompositor == ImageBridgeChild::GetSingleton(), + "Must only use GPUVideo on ImageBridge"); + return mTextureClient; + } + + private: + gfx::IntSize mSize; + gfx::ColorDepth mColorDepth; + gfx::ColorSpace2 mColorSpace; + gfx::YUVColorSpace mYUVColorSpace; + RefPtr<TextureClient> mTextureClient; + gfx::TransferFunction mTransferFunction; + gfx::ColorRange mColorRange; +}; + +} // namespace layers +} // namespace mozilla + +#endif // GFX_GPU_VIDEO_IMAGE_H |