1// libjingle 2// Copyright 2004 Google Inc. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are met: 6// 7// 1. Redistributions of source code must retain the above copyright notice, 8// this list of conditions and the following disclaimer. 9// 2. Redistributions in binary form must reproduce the above copyright notice, 10// this list of conditions and the following disclaimer in the documentation 11// and/or other materials provided with the distribution. 12// 3. The name of the author may not be used to endorse or promote products 13// derived from this software without specific prior written permission. 14// 15// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 16// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 17// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 18// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 19// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 24// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25// 26// Definition of class GtkVideoRenderer that implements the abstract class 27// cricket::VideoRenderer via GTK. 28 29#ifndef TALK_MEDIA_DEVICES_GTKVIDEORENDERER_H_ 30#define TALK_MEDIA_DEVICES_GTKVIDEORENDERER_H_ 31 32#include "talk/base/basictypes.h" 33#include "talk/base/scoped_ptr.h" 34#include "talk/media/base/videorenderer.h" 35 36typedef struct _GtkWidget GtkWidget; // forward declaration, defined in gtk.h 37 38namespace cricket { 39 40class GtkVideoRenderer : public VideoRenderer { 41 public: 42 GtkVideoRenderer(int x, int y); 43 virtual ~GtkVideoRenderer(); 44 45 // Implementation of pure virtual methods of VideoRenderer. 46 // These two methods may be executed in different threads. 47 // SetSize is called before RenderFrame. 48 virtual bool SetSize(int width, int height, int reserved); 49 virtual bool RenderFrame(const VideoFrame* frame); 50 51 private: 52 // Initialize the attributes when the first frame arrives. 53 bool Initialize(int width, int height); 54 // Pump the Gtk event loop until there are no events left. 55 void Pump(); 56 // Check if the window has been closed. 57 bool IsClosed() const; 58 59 talk_base::scoped_ptr<uint8[]> image_; 60 GtkWidget* window_; 61 GtkWidget* draw_area_; 62 // The initial position of the window. 63 int initial_x_; 64 int initial_y_; 65}; 66 67} // namespace cricket 68 69#endif // TALK_MEDIA_DEVICES_GTKVIDEORENDERER_H_ 70