基于SDL的画圆和矩形

#include <stdlib.h>

#include "SDL.h"

#include "SDL_draw.h"

int main(int argc, char *argv[])

{

  SDL_Surface *screen;// 屏幕

  int width, height;

  Uint8  video_bpp;

  Uint32 videoflags;

   if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {

    fprintf(stderr, "SDL初始化失败。。。。 %s", SDL_GetError());

    exit(1);

  }

  atexit(SDL_Quit);  //退出

  videoflags = SDL_SWSURFACE | SDL_ANYFORMAT;

  width = 640;

  height = 480;

  video_bpp = 0;

  /*Video mode activation*/

  screen = SDL_SetVideoMode(width, height, video_bpp, videoflags);

  if (!screen) {

    fprintf(stderr, "不能激活视频模式: %dx%d: %s\n",

            width, height, SDL_GetError());

    exit(2);

  }

{

  Uint32 c_red = SDL_MapRGB(screen->format, 255,0,0);

  Draw_Circle(screen, 50,50, 50, c_red); // 画圆，圆心（50，50） 半径50

  Draw_Rect(screen, 500,400, 50,50, c_red);//画矩形 

  SDL_UpdateRect(screen, 0, 0, 0, 0);//刷新屏幕

//Wait 10 seconds

    SDL_Delay( 10000 );

  fprintf(stderr, "显示结束。。。。");

  return 0;

 

}

}