Migrate content/common/gpu/media code to media/gpu

content/common/gpu/media/android_deferred_rendering_backing_strategy.h

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_COMMON_GPU_MEDIA_ANDROID_DEFERRED_RENDERING_BACKING_STRATEGY_H_
-#define CONTENT_COMMON_GPU_MEDIA_ANDROID_DEFERRED_RENDERING_BACKING_STRATEGY_H_
-
-#include <stdint.h>
-
-#include "base/macros.h"
-#include "content/common/content_export.h"
-#include "content/common/gpu/media/android_video_decode_accelerator.h"
-
-namespace gl {
-class GLImage;
-}
-
-namespace gpu {
-namespace gles2 {
-class GLStreamTextureImage;
-class TextureRef;
-}
-}
-
-namespace content {
-
-class AVDACodecImage;
-class AVDASharedState;
-
-// A BackingStrategy implementation that defers releasing codec buffers until
-// a PictureBuffer's texture is used to draw, then draws using the surface
-// texture's front buffer rather than a copy.  To do this, it uses a GLImage
-// implementation to talk to MediaCodec.
-class CONTENT_EXPORT AndroidDeferredRenderingBackingStrategy
-    : public AndroidVideoDecodeAccelerator::BackingStrategy {
- public:
-  explicit AndroidDeferredRenderingBackingStrategy(
-      AVDAStateProvider* state_provider);
-  ~AndroidDeferredRenderingBackingStrategy() override;
-
-  // AndroidVideoDecodeAccelerator::BackingStrategy
-  gfx::ScopedJavaSurface Initialize(int surface_view_id) override;
-  void Cleanup(bool have_context,
-               const AndroidVideoDecodeAccelerator::OutputBufferMap&) override;
-  scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture() const override;
-  uint32_t GetTextureTarget() const override;
-  gfx::Size GetPictureBufferSize() const override;
-  void UseCodecBufferForPictureBuffer(int32_t codec_buffer_index,
-                                      const media::PictureBuffer&) override;
-  void AssignOnePictureBuffer(const media::PictureBuffer&, bool) override;
-  void ReuseOnePictureBuffer(const media::PictureBuffer&) override;
-  void CodecChanged(
-      media::VideoCodecBridge*,
-      const AndroidVideoDecodeAccelerator::OutputBufferMap&) override;
-  void OnFrameAvailable() override;
-  bool ArePicturesOverlayable() override;
-  void UpdatePictureBufferSize(media::PictureBuffer* picture_buffer,
-                               const gfx::Size& new_size) override;
-
- private:
-  // Release any codec buffer that is associated with the given picture buffer
-  // back to the codec.  It is okay if there is no such buffer.
-  void ReleaseCodecBufferForPicture(const media::PictureBuffer& picture_buffer);
-
-  // Return the AVDACodecImage for a given PictureBuffer's texture.
-  AVDACodecImage* GetImageForPicture(const media::PictureBuffer&);
-  void SetImageForPicture(
-      const media::PictureBuffer& picture_buffer,
-      const scoped_refptr<gpu::gles2::GLStreamTextureImage>& image);
-
-  // Make a copy of the SurfaceTexture's front buffer and associate all given
-  // picture buffer textures with it. The picture buffer textures will not
-  // dependend on |this|, the SurfaceTexture, the MediaCodec or the VDA, so it's
-  // used to back the picture buffers when the VDA is being destroyed.
-  void CopySurfaceTextureToPictures(
-      const AndroidVideoDecodeAccelerator::OutputBufferMap& buffers);
-
-  // Return true if and only if the surface_texture_cant_detach workaround is
-  // not set.
-  bool DoesSurfaceTextureDetachWork() const;
-
-  // Return true if and only if CopySurfaceTextureToPictures is expected to work
-  // on this device.
-  bool ShouldCopyPictures() const;
-
-  scoped_refptr<AVDASharedState> shared_state_;
-
-  AVDAStateProvider* state_provider_;
-
-  // The SurfaceTexture to render to. Non-null after Initialize() if
-  // we're not rendering to a SurfaceView.
-  scoped_refptr<gfx::SurfaceTexture> surface_texture_;
-
-  media::VideoCodecBridge* media_codec_;
-
-  DISALLOW_COPY_AND_ASSIGN(AndroidDeferredRenderingBackingStrategy);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_MEDIA_ANDROID_DEFERRED_RENDERING_BACKING_STRATEGY_H_