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

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include "game.h"
   5 #include "keyb.h"
   6 #include "timer.h"
   7 #include "gfx.h"
   8 #include "logger.h"
   9 #include "cdpmi.h"
  10
  11 static struct video_mode *vmode;
  12 static int quit;
  13 static void *vmem;
  14
  15 int main(int argc, char **argv)
  16 {
  17         void *fb_buf;
  18         struct video_mode *vmodes;
  19         int vmidx, status = 0;
  20
  21         init_logger("game.log");
  22
  23         init_timer(100);
  24         kb_init(32);
  25
  26         if(init_video() == -1) {
  27                 return 1;
  28         }
  29         vmodes = video_modes();
  30
  31         if((vmidx = match_video_mode(640, 480, 16)) == -1) {
  32                 return 1;
  33         }
  34         if(!(vmem = set_video_mode(vmidx, 1))) {
  35                 return 1;
  36         }
  37         vmode = vmodes + vmidx;
  38
  39         fb_width = vmode->xsz;
  40         fb_height = vmode->ysz;
  41         fb_size = vmode->pitch * vmode->ysz;
  42
  43         if(!(fb_buf = malloc(fb_size + vmode->pitch * 2))) {
  44                 fprintf(stderr, "failed to allocate framebuffer\n");
  45                 status = -1;
  46                 goto break_evloop;
  47         }
  48         fb_pixels = (uint16_t*)((char*)fb_buf + vmode->pitch);
  49
  50         if(init(argc, argv) == -1) {
  51                 status = -1;
  52                 goto break_evloop;
  53         }
  54
  55         reset_timer();
  56
  57         for(;;) {
  58                 int key;
  59                 if(key_event) {
  60                         while((key = kb_getkey()) != -1) {
  61                                 key_event(key, 1);
  62                         }
  63                 } else {
  64                         while((key = kb_getkey()) != -1) {
  65                                 if(key == 27) goto break_evloop;
  66                         }
  67                 }
  68                 if(quit) goto break_evloop;
  69
  70                 time_msec = get_msec();
  71                 draw();
  72         }
  73
  74 break_evloop:
  75         free(fb_buf);
  76         cleanup();
  77         set_text_mode();
  78         cleanup_video();
  79         kb_shutdown();
  80         return status;
  81 }
  82
  83 void game_quit(void)
  84 {
  85         quit = 1;
  86 }