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_CONSUMER_H_ 6 #define REMOTING_CLIENT_FRAME_CONSUMER_H_ 7 8 #include "base/basictypes.h" 9 #include "third_party/skia/include/core/SkRect.h" 10 #include "third_party/skia/include/core/SkRegion.h" 11 #include "third_party/skia/include/core/SkSize.h" 12 13 namespace webrtc { 14 class DesktopFrame; 15 } // namespace webrtc 16 17 namespace remoting { 18 19 class FrameConsumer { 20 public: 21 // Accepts a buffer to be painted to the screen. The buffer's dimensions and 22 // relative position within the frame are specified by |clip_area|. Only 23 // pixels falling within |region| and the current clipping area are painted. 24 // The function assumes that the passed buffer was scaled to fit a window 25 // having |view_size| dimensions. 26 // 27 // N.B. Both |clip_area| and |region| are in output coordinates relative to 28 // the frame. 29 virtual void ApplyBuffer(const SkISize& view_size, 30 const SkIRect& clip_area, 31 webrtc::DesktopFrame* buffer, 32 const SkRegion& region) = 0; 33 34 // Accepts a buffer that couldn't be used for drawing for any reason (shutdown 35 // is in progress, the view area has changed, etc.). The accepted buffer can 36 // be freed or reused for another drawing operation. 37 virtual void ReturnBuffer(webrtc::DesktopFrame* buffer) = 0; 38 39 // Set the dimension of the entire host screen. 40 virtual void SetSourceSize(const SkISize& source_size, 41 const SkIPoint& dpi) = 0; 42 43 protected: 44 FrameConsumer() {} 45 virtual ~FrameConsumer() {} 46 47 private: 48 DISALLOW_COPY_AND_ASSIGN(FrameConsumer); 49 }; 50 51 } // namespace remoting 52 53 #endif // REMOTING_CLIENT_FRAME_CONSUMER_H_ 54
