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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef REMOTING_CLIENT_FRAME_PRODUCER_H_ | |
6 #define REMOTING_CLIENT_FRAME_PRODUCER_H_ | |
7 | |
8 #include "base/callback_forward.h" | |
9 | |
10 namespace webrtc { | |
11 class DesktopFrame; | |
12 class DesktopRect; | |
13 class DesktopRegion; | |
14 class DesktopSize; | |
15 } // namespace webrtc | |
16 | |
17 namespace remoting { | |
18 | |
19 class FrameProducer { | |
20 public: | |
21 FrameProducer() {} | |
22 | |
23 // Adds an image buffer to the pool of pending buffers for subsequent drawing. | |
24 // Once drawing is completed the buffer will be returned to the consumer via | |
25 // the FrameConsumer::ApplyBuffer() call. Alternatively an empty buffer could | |
26 // be returned via the FrameConsumer::ReturnBuffer() call. | |
27 // | |
28 // The passed buffer must be large enough to hold the whole clipping area. | |
29 virtual void DrawBuffer(webrtc::DesktopFrame* buffer) = 0; | |
30 | |
31 // Requests repainting of the specified |region| of the frame as soon as | |
32 // possible. |region| is specified in output coordinates relative to | |
33 // the beginning of the frame. | |
34 virtual void InvalidateRegion(const webrtc::DesktopRegion& region) = 0; | |
35 | |
36 // Requests returing of all pending buffers to the consumer via | |
37 // FrameConsumer::ReturnBuffer() calls. | |
38 virtual void RequestReturnBuffers(const base::Closure& done) = 0; | |
39 | |
40 // Notifies the producer of changes to the output view size or clipping area. | |
41 // Implementations must cope with empty |view_size| or |clip_area|. | |
42 virtual void SetOutputSizeAndClip(const webrtc::DesktopSize& view_size, | |
43 const webrtc::DesktopRect& clip_area) = 0; | |
44 | |
45 protected: | |
46 virtual ~FrameProducer() {} | |
47 | |
48 private: | |
49 DISALLOW_COPY_AND_ASSIGN(FrameProducer); | |
50 }; | |
51 | |
52 } // namespace remoting | |
53 | |
54 #endif // REMOTING_CLIENT_FRAME_PRODUCER_H_ | |
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