1 /* 2 * libjingle 3 * Copyright 2004 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 // Definition of class GtkVideoRenderer that implements the abstract class 29 // cricket::VideoRenderer via GTK. 30 31 #ifndef TALK_MEDIA_DEVICES_GTKVIDEORENDERER_H_ 32 #define TALK_MEDIA_DEVICES_GTKVIDEORENDERER_H_ 33 34 #include "talk/media/base/videorenderer.h" 35 #include "webrtc/base/basictypes.h" 36 #include "webrtc/base/scoped_ptr.h" 37 38 typedef struct _GtkWidget GtkWidget; // forward declaration, defined in gtk.h 39 40 namespace cricket { 41 42 class GtkVideoRenderer : public VideoRenderer { 43 public: 44 GtkVideoRenderer(int x, int y); 45 virtual ~GtkVideoRenderer(); 46 47 // Implementation of pure virtual methods of VideoRenderer. 48 // These two methods may be executed in different threads. 49 // SetSize is called before RenderFrame. 50 virtual bool SetSize(int width, int height, int reserved); 51 virtual bool RenderFrame(const VideoFrame* frame); 52 53 private: 54 // Initialize the attributes when the first frame arrives. 55 bool Initialize(int width, int height); 56 // Pump the Gtk event loop until there are no events left. 57 void Pump(); 58 // Check if the window has been closed. 59 bool IsClosed() const; 60 61 rtc::scoped_ptr<uint8_t[]> image_; 62 GtkWidget* window_; 63 GtkWidget* draw_area_; 64 // The initial position of the window. 65 int initial_x_; 66 int initial_y_; 67 68 int width_; 69 int height_; 70 }; 71 72 } // namespace cricket 73 74 #endif // TALK_MEDIA_DEVICES_GTKVIDEORENDERER_H_ 75