git.mutantstargoat.com Git - dosdemo/blob - src/demo.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <math.h>
   5 #include <errno.h>
   6 #include "demo.h"
   7 #include "screen.h"
   8
   9 int fb_width = 320;
  10 int fb_height = 240;
  11 int fb_bpp = 16;
  12 unsigned char *fb_pixels;
  13 unsigned long time_msec;
  14
  15 static unsigned long nframes;
  16
  17 int demo_init(int argc, char **argv)
  18 {
  19         if(scr_init() == -1) {
  20                 return -1;
  21         }
  22         scr_change(scr_lookup("tunnel"), 4000);
  23
  24         return 0;
  25 }
  26
  27 void demo_cleanup(void)
  28 {
  29         scr_shutdown();
  30
  31         if(time_msec) {
  32                 float fps = (float)nframes / ((float)time_msec / 1000.0f);
  33                 printf("average framerate: %.1f\n", fps);
  34         }
  35 }
  36
  37 void demo_draw(void)
  38 {
  39         scr_update();
  40         scr_draw();
  41
  42         ++nframes;
  43 }
  44
  45 void demo_keyboard(int key, int state)
  46 {
  47         if(state) {
  48                 switch(key) {
  49                 case 27:
  50                         demo_quit();
  51                         break;
  52
  53                 default:
  54                         break;
  55                 }
  56         }
  57 }