git.mutantstargoat.com Git - dosdemo/blob - src/dos/main.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <limits.h>
   5 #include "demo.h"
   6 #include "keyb.h"
   7 #include "mouse.h"
   8 #include "timer.h"
   9 #include "gfx.h"
  10
  11 static int quit;
  12 static int use_mouse;
  13
  14 int main(int argc, char **argv)
  15 {
  16         void *vmem;
  17         long fbsize = fb_width * fb_height * fb_bpp / CHAR_BIT;
  18
  19         init_timer(100);
  20         kb_init(32);
  21
  22         if((use_mouse = have_mouse())) {
  23                 set_mouse_limits(0, 0, fb_width, fb_height);
  24                 set_mouse(fb_width / 2, fb_height / 2);
  25         }
  26
  27         if(!(fb_pixels = malloc(fbsize))) {
  28                 fprintf(stderr, "failed to allocate backbuffer\n");
  29                 return 1;
  30         }
  31
  32         if(!(vmem = set_video_mode(fb_width, fb_height, fb_bpp))) {
  33                 return 1;
  34         }
  35
  36         if(demo_init(argc, argv) == -1) {
  37                 set_text_mode();
  38                 return 1;
  39         }
  40         reset_timer();
  41
  42         while(!quit) {
  43                 int key;
  44                 while((key = kb_getkey()) != -1) {
  45                         demo_keyboard(key, 1);
  46                 }
  47                 if(quit) goto break_evloop;
  48
  49                 if(use_mouse) {
  50                         mouse_bmask = read_mouse(&mouse_x, &mouse_y);
  51                 }
  52
  53                 time_msec = get_msec();
  54                 demo_draw();
  55
  56                 /*wait_vsync();*/
  57                 memcpy(vmem, fb_pixels, fbsize);
  58         }
  59
  60 break_evloop:
  61         set_text_mode();
  62         demo_cleanup();
  63         kb_shutdown();
  64         return 0;
  65 }
  66
  67 void demo_quit(void)
  68 {
  69         quit = 1;
  70 }