| // Copyright 2013 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 CC_LAYERS_VIDEO_FRAME_PROVIDER_CLIENT_IMPL_H_ |
| #define CC_LAYERS_VIDEO_FRAME_PROVIDER_CLIENT_IMPL_H_ |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/synchronization/lock.h" |
| #include "cc/layers/video_frame_provider.h" |
| #include "ui/gfx/transform.h" |
| |
| namespace media { class VideoFrame; } |
| |
| namespace cc { |
| class VideoLayerImpl; |
| |
| class VideoFrameProviderClientImpl |
| : public VideoFrameProvider::Client, |
| public base::RefCounted<VideoFrameProviderClientImpl> { |
| public: |
| static scoped_refptr<VideoFrameProviderClientImpl> Create( |
| VideoFrameProvider* provider); |
| |
| VideoLayerImpl* active_video_layer() { return active_video_layer_; } |
| void set_active_video_layer(VideoLayerImpl* video_layer) { |
| active_video_layer_ = video_layer; |
| } |
| |
| void Stop(); |
| bool Stopped() const { return !provider_; } |
| |
| scoped_refptr<media::VideoFrame> AcquireLockAndCurrentFrame(); |
| void PutCurrentFrame(const scoped_refptr<media::VideoFrame>& frame); |
| void ReleaseLock(); |
| const gfx::Transform& stream_texture_matrix() const { |
| return stream_texture_matrix_; |
| } |
| |
| // VideoFrameProvider::Client implementation. These methods are all callable |
| // on any thread. |
| virtual void StopUsingProvider() OVERRIDE; |
| virtual void DidReceiveFrame() OVERRIDE; |
| virtual void DidUpdateMatrix(const float* matrix) OVERRIDE; |
| |
| private: |
| explicit VideoFrameProviderClientImpl(VideoFrameProvider* provider); |
| friend class base::RefCounted<VideoFrameProviderClientImpl>; |
| virtual ~VideoFrameProviderClientImpl(); |
| |
| VideoLayerImpl* active_video_layer_; |
| |
| // Guards the destruction of provider_ and the frame that it provides |
| base::Lock provider_lock_; |
| VideoFrameProvider* provider_; |
| |
| gfx::Transform stream_texture_matrix_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VideoFrameProviderClientImpl); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_LAYERS_VIDEO_FRAME_PROVIDER_CLIENT_IMPL_H_ |