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- #ifdef __cplusplus
- #include <cstdlib>
- #else
- #include <stdlib.h>
- #endif
- #include <SDL/SDL.h>
- int main ( int argc, char** argv )
- {
- // initialize SDL video
- if ( SDL_Init( SDL_INIT_VIDEO ) < 0 )
- {
- printf( "Unable to init SDL: %s\n", SDL_GetError() );
- return 1;
- }
- // make sure SDL cleans up before exit
- atexit(SDL_Quit);
- // create a new window
- SDL_Surface* screen = SDL_SetVideoMode(640, 480, 16,
- SDL_HWSURFACE|SDL_DOUBLEBUF);
- if ( !screen )
- {
- printf("Unable to set 640x480 video: %s\n", SDL_GetError());
- return 1;
- }
- // load an image
- SDL_Surface* bmp = SDL_LoadBMP("cb.bmp");
- if (!bmp)
- {
- printf("Unable to load bitmap: %s\n", SDL_GetError());
- return 1;
- }
- // centre the bitmap on screen
- SDL_Rect dstrect;
- dstrect.x = (screen->w - bmp->w) / 2;
- dstrect.y = (screen->h - bmp->h) / 2;
- // program main loop
- bool done = false;
- while (!done)
- {
- // message processing loop
- SDL_Event event;
- while (SDL_PollEvent(&event))
- {
- // check for messages
- switch (event.type)
- {
- // exit if the window is closed
- case SDL_QUIT:
- done = true;
- break;
- // check for keypresses
- case SDL_KEYDOWN:
- {
- // exit if ESCAPE is pressed
- if (event.key.keysym.sym == SDLK_ESCAPE)
- done = true;
- break;
- }
- } // end switch
- } // end of message processing
- // DRAWING STARTS HERE
- // clear screen
- SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
- // draw bitmap
- dstrect.x +=2;
- SDL_BlitSurface(bmp, 0, screen, &dstrect);
- // DRAWING ENDS HERE
- // finally, update the screen :)
- SDL_Flip(screen);
- } // end main loop
- SDL_Delay(100);
- // free loaded bitmap
- SDL_FreeSurface(bmp);
- // all is well ;)
- printf("Exited cleanly\n");
- return 0;
- }
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