| // Copyright 2021 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 MEDIA_VIDEO_RENDERABLE_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_ |
| #define MEDIA_VIDEO_RENDERABLE_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_ |
| |
| #include <memory> |
| |
| #include "base/memory/ref_counted.h" |
| #include "media/base/media_export.h" |
| #include "media/base/video_types.h" |
| #include "third_party/skia/include/core/SkImageInfo.h" |
| #include "third_party/skia/include/gpu/GrTypes.h" |
| #include "ui/gfx/buffer_types.h" |
| |
| namespace gfx { |
| class ColorSpace; |
| class GpuMemoryBuffer; |
| class Size; |
| } // namespace gfx |
| |
| namespace gpu { |
| class GpuMemoryBufferManager; |
| class SharedImageInterface; |
| struct Mailbox; |
| struct SyncToken; |
| } // namespace gpu |
| |
| namespace media { |
| |
| class VideoFrame; |
| |
| // A video frame pool that returns GpuMemoryBuffer-backed VideoFrames. All |
| // access to this class must be on the thread on which it was created. |
| class MEDIA_EXPORT RenderableGpuMemoryBufferVideoFramePool { |
| public: |
| // Interface to GPU functionality. This particular interface (as opposed to, |
| // say, exposing a GpuMemoryBufferManager and SharedImageInterface) is |
| // chosen for testing. |
| class Context { |
| public: |
| // Allocate a GpuMemoryBuffer. |
| virtual std::unique_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBuffer( |
| const gfx::Size& size, |
| gfx::BufferFormat format, |
| gfx::BufferUsage usage) = 0; |
| |
| // Create a SharedImage representation of a plane of a GpuMemoryBuffer |
| // allocated by this interface. Populate `mailbox` and `sync_token`. |
| virtual void CreateSharedImage(gfx::GpuMemoryBuffer* gpu_memory_buffer, |
| gfx::BufferPlane plane, |
| const gfx::ColorSpace& color_space, |
| GrSurfaceOrigin surface_origin, |
| SkAlphaType alpha_type, |
| uint32_t usage, |
| gpu::Mailbox& mailbox, |
| gpu::SyncToken& sync_token) = 0; |
| |
| // Destroy a SharedImage created by this interface. |
| virtual void DestroySharedImage(const gpu::SyncToken& sync_token, |
| const gpu::Mailbox& mailbox) = 0; |
| |
| virtual ~Context() = default; |
| }; |
| |
| // Create a frame pool. The supplied `context` will live until all frames |
| // created by the pool have been destroyed (so it may outlive the returned |
| // pool). |
| static std::unique_ptr<RenderableGpuMemoryBufferVideoFramePool> Create( |
| std::unique_ptr<Context> context); |
| |
| // Returns a GpuMemoryBuffer-backed VideoFrame that can be rendered to. This |
| // may return nullptr on an unsupported parameter, or may return nullptr |
| // forever in response to a context lost. |
| virtual scoped_refptr<VideoFrame> MaybeCreateVideoFrame( |
| const gfx::Size& coded_size, |
| const gfx::ColorSpace& color_space) = 0; |
| |
| virtual ~RenderableGpuMemoryBufferVideoFramePool() = default; |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_VIDEO_RENDERABLE_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_ |