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90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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_GFX_WEBRENDERTEXTUREHOST_H
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#define MOZILLA_GFX_WEBRENDERTEXTUREHOST_H
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#include "mozilla/layers/TextureHost.h"
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#include "mozilla/webrender/WebRenderTypes.h"
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namespace mozilla {
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namespace layers {
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class SurfaceDescriptor;
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// This textureHost is specialized for WebRender usage. With WebRender, there is
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// no Compositor during composition. Instead, we use RendererOGL for composition.
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// So, there are some UNREACHABLE asserts for the original Compositor related
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// code path in this class. Furthermore, the RendererOGL runs at RenderThead
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// instead of Compositor thread. This class is also creating the corresponding
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// RenderXXXTextureHost used by RendererOGL at RenderThread.
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class WebRenderTextureHost : public TextureHost
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{
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public:
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WebRenderTextureHost(const SurfaceDescriptor& aDesc,
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TextureFlags aFlags,
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TextureHost* aTexture,
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wr::ExternalImageId& aExternalImageId);
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virtual ~WebRenderTextureHost();
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virtual void DeallocateDeviceData() override {}
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virtual void SetTextureSourceProvider(TextureSourceProvider* aProvider) override;
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virtual bool Lock() override;
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virtual void Unlock() override;
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virtual gfx::SurfaceFormat GetFormat() const override;
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// Return the format used for reading the texture. Some hardware specific
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// textureHosts use their special data representation internally, but we could
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// treat these textureHost as the read-format when we read them.
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// Please check TextureHost::GetReadFormat().
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virtual gfx::SurfaceFormat GetReadFormat() const override;
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virtual bool BindTextureSource(CompositableTextureSourceRef& aTexture) override;
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virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;
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virtual YUVColorSpace GetYUVColorSpace() const override;
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virtual gfx::IntSize GetSize() const override;
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#ifdef MOZ_LAYERS_HAVE_LOG
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virtual const char* Name() override { return "WebRenderTextureHost"; }
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#endif
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virtual WebRenderTextureHost* AsWebRenderTextureHost() override { return this; }
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wr::ExternalImageId GetExternalImageKey() { return mExternalImageId; }
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int32_t GetRGBStride();
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virtual uint32_t NumSubTextures() const override;
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virtual void PushResourceUpdates(wr::ResourceUpdateQueue& aResources,
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ResourceUpdateOp aOp,
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const Range<wr::ImageKey>& aImageKeys,
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const wr::ExternalImageId& aExtID) override;
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virtual void PushDisplayItems(wr::DisplayListBuilder& aBuilder,
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const wr::LayoutRect& aBounds,
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const wr::LayoutRect& aClip,
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wr::ImageRendering aFilter,
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const Range<wr::ImageKey>& aImageKeys) override;
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protected:
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void CreateRenderTextureHost(const SurfaceDescriptor& aDesc, TextureHost* aTexture);
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RefPtr<TextureHost> mWrappedTextureHost;
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wr::ExternalImageId mExternalImageId;
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};
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} // namespace layers
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} // namespace mozilla
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#endif // MOZILLA_GFX_WEBRENDERTEXTUREHOST_H
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