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	If asynchronous remote textures are used, the creation of the RendererAndroidSurfaceTextureHost could be deferred until just before WebRender uses it. Then the following functions might not be called as expected. - RenderAndroidSurfaceTextureHost::PrepareForUse() - RenderAndroidSurfaceTextureHost::NotifyForUse() Then the change suppresses PrepareForUse() and NotifyForUse() calls from compositor thread when remote texture is used. Differential Revision: https://phabricator.services.mozilla.com/D176833
		
			
				
	
	
		
			96 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			96 lines
		
	
	
	
		
			2.8 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_RENDERANDROIDSURFACETEXTUREHOST_H
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#define MOZILLA_GFX_RENDERANDROIDSURFACETEXTUREHOST_H
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#include "mozilla/java/GeckoSurfaceTextureWrappers.h"
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#include "mozilla/layers/TextureHostOGL.h"
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#include "RenderTextureHostSWGL.h"
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namespace mozilla {
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namespace gfx {
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class DataSourceSurface;
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}
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namespace wr {
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class RenderAndroidSurfaceTextureHost final : public RenderTextureHostSWGL {
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 public:
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  explicit RenderAndroidSurfaceTextureHost(
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      const java::GeckoSurfaceTexture::GlobalRef& aSurfTex, gfx::IntSize aSize,
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      gfx::SurfaceFormat aFormat, bool aContinuousUpdate,
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      Maybe<gfx::Matrix4x4> aTransformOverride, bool aIsRemoteTexture);
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  wr::WrExternalImage Lock(uint8_t aChannelIndex, gl::GLContext* aGL) override;
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  void Unlock() override;
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  size_t Bytes() override {
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    return mSize.width * mSize.height * BytesPerPixel(mFormat);
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  }
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  void PrepareForUse() override;
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  void NotifyForUse() override;
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  void NotifyNotUsed() override;
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  // RenderTextureHostSWGL
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  gfx::SurfaceFormat GetFormat() const override;
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  gfx::ColorDepth GetColorDepth() const override {
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    return gfx::ColorDepth::COLOR_8;
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  }
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  size_t GetPlaneCount() const override { return 1; }
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  bool MapPlane(RenderCompositor* aCompositor, uint8_t aChannelIndex,
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                PlaneInfo& aPlaneInfo) override;
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  void UnmapPlanes() override;
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  RenderAndroidSurfaceTextureHost* AsRenderAndroidSurfaceTextureHost()
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      override {
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    return this;
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  }
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  void UpdateTexImageIfNecessary();
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  mozilla::java::GeckoSurfaceTexture::GlobalRef mSurfTex;
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  const gfx::IntSize mSize;
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  const gfx::SurfaceFormat mFormat;
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  // mContinuousUpdate was used for rendering video in the past.
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  // It is not used on current gecko.
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  const bool mContinuousUpdate;
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  const Maybe<gfx::Matrix4x4> mTransformOverride;
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 private:
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  virtual ~RenderAndroidSurfaceTextureHost();
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  bool EnsureAttachedToGLContext();
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  already_AddRefed<gfx::DataSourceSurface> ReadTexImage();
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  // Returns the UV coordinates to be used when sampling the texture, taking in
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  // to account the SurfaceTexture's transform if applicable.
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  std::pair<gfx::Point, gfx::Point> GetUvCoords(
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      gfx::IntSize aTextureSize) const override;
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  enum PrepareStatus {
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    STATUS_NONE,
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    STATUS_MIGHT_BE_USED_BY_WR,
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    STATUS_UPDATE_TEX_IMAGE_NEEDED,
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    STATUS_PREPARED
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  };
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  PrepareStatus mPrepareStatus;
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  bool mAttachedToGLContext;
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  RefPtr<gl::GLContext> mGL;
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  RefPtr<gfx::DataSourceSurface> mReadback;
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  bool mIsRemoteTexture;
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};
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}  // namespace wr
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}  // namespace mozilla
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#endif  // MOZILLA_GFX_RENDERANDROIDSURFACETEXTUREHOST_H
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