| // 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 REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_ |
| #define REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "remoting/codec/video_decoder.h" |
| |
| namespace remoting { |
| |
| // Video decoder implementations that decodes video packet encoded by |
| // VideoEncoderVerbatim. It just copies data from incoming packets to the |
| // video frames. |
| class VideoDecoderVerbatim : public VideoDecoder { |
| public: |
| virtual ~VideoDecoderVerbatim(); |
| |
| VideoDecoderVerbatim(); |
| |
| // VideoDecoder implementation. |
| virtual bool IsReadyForData() OVERRIDE; |
| virtual void Initialize(const SkISize& screen_size) OVERRIDE; |
| virtual DecodeResult DecodePacket(const VideoPacket* packet) OVERRIDE; |
| virtual VideoPacketFormat::Encoding Encoding() OVERRIDE; |
| virtual void Invalidate(const SkISize& view_size, |
| const SkRegion& region) OVERRIDE; |
| virtual void RenderFrame(const SkISize& view_size, |
| const SkIRect& clip_area, |
| uint8* image_buffer, |
| int image_stride, |
| SkRegion* output_region) OVERRIDE; |
| virtual const SkRegion* GetImageShape() OVERRIDE; |
| |
| private: |
| enum State { |
| kUninitialized, |
| kReady, |
| kProcessing, |
| kPartitionDone, |
| kDone, |
| kError, |
| }; |
| |
| // Helper method. Called from DecodePacket to updated state of the decoder. |
| void UpdateStateForPacket(const VideoPacket* packet); |
| |
| // The internal state of the decoder. |
| State state_; |
| |
| // Keeps track of the updating rect. |
| SkIRect clip_; |
| |
| // The position in the row that we are updating. |
| int row_pos_; |
| |
| // The current row in the rect that we are updaing. |
| int row_y_; |
| |
| // The region updated that hasn't been copied to the screen yet. |
| SkRegion updated_region_; |
| |
| // Size of the remote screen. |
| SkISize screen_size_; |
| |
| // The bitmap holding the remote screen bits. |
| scoped_ptr<uint8[]> screen_buffer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VideoDecoderVerbatim); |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_ |