00001
00002 /***************************************************************************
00003  *  image_display.h - widget to display an image based on SDL
00004  *
00005  *  Created: Mon Nov 05 13:49:20 2007
00006  *  Copyright  2007  Tim Niemueller [www.niemueller.de]
00007  *
00008  ****************************************************************************/
00009
00010 /*  This program is free software; you can redistribute it and/or modify
00011  *  it under the terms of the GNU General Public License as published by
00012  *  the Free Software Foundation; either version 2 of the License, or
00013  *  (at your option) any later version. A runtime exception applies to
00014  *  this software (see LICENSE.GPL_WRE file mentioned below for details).
00015  *
00016  *  This program is distributed in the hope that it will be useful,
00017  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  *  GNU Library General Public License for more details.
00020  *
00021  *  Read the full text in the LICENSE.GPL_WRE file in the doc directory.
00022  */
00023
00024 #ifndef __FIREVISION_FVWIDGETS_IMAGE_DISPLAY_H_
00025 #define __FIREVISION_FVWIDGETS_IMAGE_DISPLAY_H_
00026 
00027 #include <fvutils/color/colorspaces.h>
00028
00029 typedef struct SDL_Surface SDL_Surface;
00030 typedef struct SDL_Overlay SDL_Overlay;
00031 typedef struct SDL_Rect    SDL_Rect;
00032
00033 class ImageDisplay
00034 {
00035  public:
00036   ImageDisplay(unsigned int width, unsigned int height, const char* title = 0);
00037   ~ImageDisplay();
00038
00039   void show(colorspace_t colorspace, unsigned char *buffer);
00040   void show(unsigned char *yuv422_planar_buffer);
00041
00042   void process_events(unsigned int max_num_events = 10);
00043   void loop_until_quit();
00044
00045  private:
00046   SDL_Surface *_surface;
00047   SDL_Overlay *_overlay;
00048   SDL_Rect    *_rect;
00049
00050   unsigned int _width;
00051   unsigned int _height;
00052 };
00053
00054 #endif