зеркало из https://github.com/mozilla/gecko-dev.git
102 строки
3.6 KiB
C++
102 строки
3.6 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_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
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// composition. So, there are some UNREACHABLE asserts for the original
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// Compositor related code path in this class. Furthermore, the RendererOGL runs
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// at RenderThead instead of Compositor thread. This class is also creating the
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// corresponding RenderXXXTextureHost used by RendererOGL at RenderThread.
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class WebRenderTextureHost : public TextureHost {
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public:
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WebRenderTextureHost(const SurfaceDescriptor& aDesc, 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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void DeallocateDeviceData() override {}
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bool Lock() override;
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void Unlock() override;
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void PrepareTextureSource(CompositableTextureSourceRef& aTexture) override;
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bool BindTextureSource(CompositableTextureSourceRef& aTexture) override;
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void UnbindTextureSource() override;
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void SetTextureSourceProvider(TextureSourceProvider* aProvider) override;
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gfx::SurfaceFormat GetFormat() const override;
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virtual void NotifyNotUsed() 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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gfx::SurfaceFormat GetReadFormat() const override;
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already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;
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gfx::YUVColorSpace GetYUVColorSpace() const override;
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gfx::IntSize GetSize() const override;
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#ifdef MOZ_LAYERS_HAVE_LOG
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const char* Name() override { return "WebRenderTextureHost"; }
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#endif
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WebRenderTextureHost* AsWebRenderTextureHost() override { return this; }
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virtual void PrepareForUse() override;
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wr::ExternalImageId GetExternalImageKey() { return mExternalImageId; }
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int32_t GetRGBStride();
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bool HasIntermediateBuffer() const override;
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uint32_t NumSubTextures() const override;
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void PushResourceUpdates(wr::TransactionBuilder& 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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void PushDisplayItems(wr::DisplayListBuilder& aBuilder,
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const wr::LayoutRect& aBounds,
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const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
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const Range<wr::ImageKey>& aImageKeys) override;
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bool SupportsWrNativeTexture() override;
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bool NeedsYFlip() const override;
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void MaybeNofityForUse(wr::TransactionBuilder& aTxn);
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protected:
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void CreateRenderTextureHost(const SurfaceDescriptor& aDesc,
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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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