| // Copyright (c) 2012 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_GPU_IPC_SERVICE_GPU_VIDEO_DECODE_ACCELERATOR_H_ |
| #define MEDIA_GPU_IPC_SERVICE_GPU_VIDEO_DECODE_ACCELERATOR_H_ |
| |
| #include <stdint.h> |
| |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/shared_memory.h" |
| #include "base/synchronization/waitable_event.h" |
| #include "gpu/command_buffer/service/texture_manager.h" |
| #include "gpu/config/gpu_info.h" |
| #include "gpu/ipc/service/gpu_command_buffer_stub.h" |
| #include "ipc/ipc_listener.h" |
| #include "ipc/ipc_sender.h" |
| #include "media/base/android_overlay_mojo_factory.h" |
| #include "media/gpu/gpu_video_decode_accelerator_helpers.h" |
| #include "media/video/video_decode_accelerator.h" |
| #include "ui/gfx/geometry/size.h" |
| |
| namespace gpu { |
| class GpuDriverBugWorkarounds; |
| struct GpuPreferences; |
| } // namespace gpu |
| |
| namespace media { |
| |
| class GpuVideoDecodeAccelerator |
| : public IPC::Listener, |
| public IPC::Sender, |
| public VideoDecodeAccelerator::Client, |
| public gpu::GpuCommandBufferStub::DestructionObserver { |
| public: |
| // Each of the arguments to the constructor must outlive this object. |
| // |stub->decoder()| will be made current around any operation that touches |
| // the underlying VDA so that it can make GL calls safely. |
| GpuVideoDecodeAccelerator( |
| int32_t host_route_id, |
| gpu::GpuCommandBufferStub* stub, |
| const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner, |
| const AndroidOverlayMojoFactoryCB& factory); |
| |
| // Static query for the capabilities, which includes the supported profiles. |
| // This query calls the appropriate platform-specific version. The returned |
| // capabilities will not contain duplicate supported profile entries. |
| static gpu::VideoDecodeAcceleratorCapabilities GetCapabilities( |
| const gpu::GpuPreferences& gpu_preferences, |
| const gpu::GpuDriverBugWorkarounds& workarounds); |
| |
| // IPC::Listener implementation. |
| bool OnMessageReceived(const IPC::Message& message) override; |
| |
| // VideoDecodeAccelerator::Client implementation. |
| void NotifyInitializationComplete(bool success) override; |
| void ProvidePictureBuffers(uint32_t requested_num_of_buffers, |
| VideoPixelFormat format, |
| uint32_t textures_per_buffer, |
| const gfx::Size& dimensions, |
| uint32_t texture_target) override; |
| void DismissPictureBuffer(int32_t picture_buffer_id) override; |
| void PictureReady(const Picture& picture) override; |
| void NotifyEndOfBitstreamBuffer(int32_t bitstream_buffer_id) override; |
| void NotifyFlushDone() override; |
| void NotifyResetDone() override; |
| void NotifyError(VideoDecodeAccelerator::Error error) override; |
| |
| // GpuCommandBufferStub::DestructionObserver implementation. |
| void OnWillDestroyStub() override; |
| |
| // Function to delegate sending to actual sender. |
| bool Send(IPC::Message* message) override; |
| |
| // Initialize VDAs from the set of VDAs supported for current platform until |
| // one of them succeeds for given |config|. Send the |init_done_msg| when |
| // done. filter_ is passed to gpu::GpuCommandBufferStub channel only if the |
| // chosen VDA can decode on IO thread. |
| bool Initialize(const VideoDecodeAccelerator::Config& config); |
| |
| private: |
| class MessageFilter; |
| |
| // We only allow self-delete, from OnWillDestroyStub(), after cleanup there. |
| ~GpuVideoDecodeAccelerator() override; |
| |
| // Handlers for IPC messages. |
| void OnDecode(const BitstreamBuffer& bitstream_buffer); |
| void OnAssignPictureBuffers( |
| const std::vector<int32_t>& buffer_ids, |
| const std::vector<PictureBuffer::TextureIds>& texture_ids); |
| void OnReusePictureBuffer(int32_t picture_buffer_id); |
| void OnFlush(); |
| void OnReset(); |
| void OnSetOverlayInfo(const OverlayInfo& overlay_info); |
| void OnDestroy(); |
| |
| // Called on IO thread when |filter_| has been removed. |
| void OnFilterRemoved(); |
| |
| // Sets the texture to cleared. |
| void SetTextureCleared(const Picture& picture); |
| |
| // Route ID to communicate with the host. |
| const int32_t host_route_id_; |
| |
| // Unowned pointer to the underlying gpu::GpuCommandBufferStub. |this| is |
| // registered as a DestuctionObserver of |stub_| and will self-delete when |
| // |stub_| is destroyed. |
| gpu::GpuCommandBufferStub* const stub_; |
| |
| // The underlying VideoDecodeAccelerator. |
| std::unique_ptr<VideoDecodeAccelerator> video_decode_accelerator_; |
| |
| // Callback to return current GLContext, if available. |
| GetGLContextCallback get_gl_context_cb_; |
| |
| // Callback for making the relevant context current for GL calls. |
| MakeGLContextCurrentCallback make_context_current_cb_; |
| |
| // Callback to bind a GLImage to a given texture id and target. |
| BindGLImageCallback bind_image_cb_; |
| |
| // Callback to return a WeakPtr to GLES2Decoder. |
| GetGLES2DecoderCallback get_gles2_decoder_cb_; |
| |
| // The texture dimensions as requested by ProvidePictureBuffers(). |
| gfx::Size texture_dimensions_; |
| |
| // The texture target as requested by ProvidePictureBuffers(). |
| uint32_t texture_target_; |
| |
| // The format of the picture buffers requested by ProvidePictureBuffers(). |
| VideoPixelFormat pixel_format_; |
| |
| // The number of textures per picture buffer as requested by |
| // ProvidePictureBuffers(). |
| uint32_t textures_per_buffer_; |
| |
| // The message filter to run VDA::Decode on IO thread if VDA supports it. |
| scoped_refptr<MessageFilter> filter_; |
| |
| // Used to wait on for |filter_| to be removed, before we can safely |
| // destroy the VDA. |
| base::WaitableEvent filter_removed_; |
| |
| // GPU child thread task runner. |
| const scoped_refptr<base::SingleThreadTaskRunner> child_task_runner_; |
| |
| // GPU IO thread task runner. |
| const scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; |
| |
| // Optional factory for mojo-based android overlays. |
| AndroidOverlayMojoFactoryCB overlay_factory_cb_; |
| |
| // Weak pointers will be invalidated on IO thread. |
| base::WeakPtrFactory<Client> weak_factory_for_io_; |
| |
| // Protects |uncleared_textures_| when DCHECK is on. This is for debugging |
| // only. We don't want to hold a lock on IO thread. When DCHECK is off, |
| // |uncleared_textures_| is only accessed from the child thread. |
| base::Lock debug_uncleared_textures_lock_; |
| |
| // A map from picture buffer ID to set of TextureRefs that have not been |
| // cleared. |
| std::map<int32_t, std::vector<scoped_refptr<gpu::gles2::TextureRef>>> |
| uncleared_textures_; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(GpuVideoDecodeAccelerator); |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_GPU_IPC_SERVICE_GPU_VIDEO_DECODE_ACCELERATOR_H_ |