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

content/common/gpu/media/avda_codec_image.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_AVDA_CODEC_IMAGE_H_
-#define CONTENT_COMMON_GPU_MEDIA_AVDA_CODEC_IMAGE_H_
-
-#include <stdint.h>
-
-#include "base/macros.h"
-#include "content/common/gpu/media/avda_shared_state.h"
-#include "gpu/command_buffer/service/gl_stream_texture_image.h"
-
-namespace ui {
-class ScopedMakeCurrent;
-}
-
-namespace content {
-
-// GLImage that renders MediaCodec buffers to a SurfaceTexture or SurfaceView as
-// needed in order to draw them.
-class AVDACodecImage : public gpu::gles2::GLStreamTextureImage {
- public:
-  AVDACodecImage(const scoped_refptr<AVDASharedState>&,
-                 media::VideoCodecBridge* codec,
-                 const base::WeakPtr<gpu::gles2::GLES2Decoder>& decoder,
-                 const scoped_refptr<gfx::SurfaceTexture>& surface_texture);
-
- protected:
-  ~AVDACodecImage() override;
-
- public:
-  // gl::GLImage implementation
-  void Destroy(bool have_context) override;
-  gfx::Size GetSize() override;
-  unsigned GetInternalFormat() override;
-  bool BindTexImage(unsigned target) override;
-  void ReleaseTexImage(unsigned target) override;
-  bool CopyTexImage(unsigned target) override;
-  bool CopyTexSubImage(unsigned target,
-                       const gfx::Point& offset,
-                       const gfx::Rect& rect) override;
-  bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
-                            int z_order,
-                            gfx::OverlayTransform transform,
-                            const gfx::Rect& bounds_rect,
-                            const gfx::RectF& crop_rect) override;
-  void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
-                    uint64_t process_tracing_id,
-                    const std::string& dump_name) override;
-  // gpu::gles2::GLStreamTextureMatrix implementation
-  void GetTextureMatrix(float xform[16]) override;
-
- public:
-  // Decoded buffer index that has the image for us to display.
-  void SetMediaCodecBufferIndex(int buffer_index);
-
-  // Return the codec buffer that we will return to the codec, or
-  // <0 if there is no such buffer.
-  int GetMediaCodecBufferIndex() const;
-
-  // Set the size of the current image.
-  void SetSize(const gfx::Size& size);
-
-  void SetMediaCodec(media::MediaCodecBridge* codec);
-
-  void SetTexture(gpu::gles2::Texture* texture);
-
- private:
-  enum { kInvalidCodecBufferIndex = -1 };
-
-  // Make sure that the surface texture's front buffer is current.  This will
-  // save / restore the current context.  It will optionally restore the texture
-  // bindings in the surface texture's context, based on |mode|.  This is
-  // intended as a hint if we don't need to change contexts.  If we do need to
-  // change contexts, then we'll always preserve the texture bindings in the
-  // both contexts.  In other words, the caller is telling us whether it's
-  // okay to change the binding in the current context.
-  enum RestoreBindingsMode { kDontRestoreBindings, kDoRestoreBindings };
-  void UpdateSurfaceTexture(RestoreBindingsMode mode);
-
-  // Attach the surface texture to our GL context to whatever texture is bound
-  // on the active unit.
-  void AttachSurfaceTextureToContext();
-
-  // Make shared_state_->context() current if it isn't already.
-  std::unique_ptr<ui::ScopedMakeCurrent> MakeCurrentIfNeeded();
-
-  // Return whether or not the current context is in the same share group as
-  // |surface_texture_|'s client texture.
-  // TODO(liberato): is this needed?
-  bool IsCorrectShareGroup() const;
-
-  // Return whether there is a codec buffer that we haven't rendered yet.  Will
-  // return false also if there's no codec or we otherwise can't update.
-  bool IsCodecBufferOutstanding() const;
-
-  // Shared state between the AVDA and all AVDACodecImages.
-  scoped_refptr<AVDASharedState> shared_state_;
-
-  // The MediaCodec buffer index that we should render. Only valid if not equal
-  // to |kInvalidCodecBufferIndex|.
-  int codec_buffer_index_;
-
-  // Our image size.
-  gfx::Size size_;
-
-  // May be null.
-  media::MediaCodecBridge* media_codec_;
-
-  const base::WeakPtr<gpu::gles2::GLES2Decoder> decoder_;
-
-  // The SurfaceTexture to render to. This is null when rendering to a
-  // SurfaceView.
-  const scoped_refptr<gfx::SurfaceTexture> surface_texture_;
-
-  // Should we detach |surface_texture_| from its GL context when we are
-  // deleted?  This happens when it's using our Texture's texture handle.
-  bool detach_surface_texture_on_destruction_;
-
-  // The texture that we're attached to.
-  gpu::gles2::Texture* texture_;
-
-  // Texture matrix of the front buffer of the surface texture.
-  float gl_matrix_[16];
-
-  DISALLOW_COPY_AND_ASSIGN(AVDACodecImage);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_MEDIA_AVDA_CODEC_IMAGE_H_