1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115


gpu / command_buffer / service / shared_image / video_image_reader_image_backing.h [blame]

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_VIDEO_IMAGE_READER_IMAGE_BACKING_H_
#define GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_VIDEO_IMAGE_READER_IMAGE_BACKING_H_

#include <memory>
#include <string>

#include "base/memory/scoped_refptr.h"
#include "base/task/single_thread_task_runner.h"
#include "gpu/command_buffer/service/ref_counted_lock.h"
#include "gpu/command_buffer/service/shared_context_state.h"
#include "gpu/command_buffer/service/shared_image/android_image_backing.h"
#include "gpu/command_buffer/service/shared_image/android_video_image_backing.h"
#include "gpu/command_buffer/service/stream_texture_shared_image_interface.h"
#include "gpu/gpu_gles2_export.h"

namespace gpu {
struct Mailbox;

// Implementation of SharedImageBacking that renders MediaCodec buffers to a
// TextureOwner or overlay as needed in order to draw them.
class GPU_GLES2_EXPORT VideoImageReaderImageBacking
    : public AndroidVideoImageBacking,
      public RefCountedLockHelperDrDc {
 public:
  VideoImageReaderImageBacking(
      const Mailbox& mailbox,
      const gfx::Size& size,
      const gfx::ColorSpace color_space,
      GrSurfaceOrigin surface_origin,
      SkAlphaType alpha_type,
      std::string debug_label,
      scoped_refptr<StreamTextureSharedImageInterface> stream_texture_sii,
      scoped_refptr<SharedContextState> shared_context_state,
      scoped_refptr<RefCountedLock> drdc_lock);

  ~VideoImageReaderImageBacking() override;

  // Disallow copy and assign.
  VideoImageReaderImageBacking(const VideoImageReaderImageBacking&) = delete;
  VideoImageReaderImageBacking& operator=(const VideoImageReaderImageBacking&) =
      delete;

 protected:
  std::unique_ptr<GLTextureImageRepresentation> ProduceGLTexture(
      SharedImageManager* manager,
      MemoryTypeTracker* tracker) override;

  std::unique_ptr<GLTexturePassthroughImageRepresentation>
  ProduceGLTexturePassthrough(SharedImageManager* manager,
                              MemoryTypeTracker* tracker) override;

  std::unique_ptr<SkiaGaneshImageRepresentation> ProduceSkiaGanesh(
      SharedImageManager* manager,
      MemoryTypeTracker* tracker,
      scoped_refptr<SharedContextState> context_state) override;

#if BUILDFLAG(SKIA_USE_DAWN)
  std::unique_ptr<SkiaGraphiteImageRepresentation> ProduceSkiaGraphite(
      SharedImageManager* manager,
      MemoryTypeTracker* tracker,
      scoped_refptr<SharedContextState> context_state) override;
#endif

  std::unique_ptr<gpu::OverlayImageRepresentation> ProduceOverlay(
      gpu::SharedImageManager* manager,
      gpu::MemoryTypeTracker* tracker) override;

  std::unique_ptr<gpu::LegacyOverlayImageRepresentation> ProduceLegacyOverlay(
      gpu::SharedImageManager* manager,
      gpu::MemoryTypeTracker* tracker) override;

 private:
  // Helper class for observing SharedContext loss on gpu main thread and
  // cleaning up resources accordingly.
  class ContextLostObserverHelper
      : public SharedContextState::ContextLostObserver,
        public RefCountedLockHelperDrDc {
   public:
    ContextLostObserverHelper(
        scoped_refptr<SharedContextState> context_state,
        scoped_refptr<StreamTextureSharedImageInterface> stream_texture_sii,
        scoped_refptr<base::SingleThreadTaskRunner> gpu_main_task_runner,
        scoped_refptr<RefCountedLock> drdc_lock);
    ~ContextLostObserverHelper() override;

   private:
    // SharedContextState::ContextLostObserver implementation.
    void OnContextLost() override;

    scoped_refptr<SharedContextState> context_state_;
    scoped_refptr<StreamTextureSharedImageInterface> stream_texture_sii_;
    scoped_refptr<base::SingleThreadTaskRunner> gpu_main_task_runner_;
  };

  class GLTextureVideoImageRepresentation;
  class GLTexturePassthroughVideoImageRepresentation;
  class SkiaGraphiteDawnImageRepresentation;
  class SkiaVkVideoImageRepresentation;
  class OverlayVideoImageRepresentation;
  class LegacyOverlayVideoImageRepresentation;

  std::unique_ptr<ContextLostObserverHelper> context_lost_helper_;
  scoped_refptr<StreamTextureSharedImageInterface> stream_texture_sii_;

  // Currently this object is created only from gpu main thread.
  scoped_refptr<base::SingleThreadTaskRunner> gpu_main_task_runner_;
};

}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_VIDEO_IMAGE_READER_IMAGE_BACKING_H_