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

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <math.h>
   4 #include <string.h>
   5 #include <limits.h>
   6 #include <conio.h>
   7 #include "demo.h"
   8 #include "keyb.h"
   9 #include "mouse.h"
  10 #include "timer.h"
  11 #include "gfx.h"
  12 #include "vmath.h"
  13 #include "cfgopt.h"
  14 #include "logger.h"
  15 #include "tinyfps.h"
  16
  17 #undef NOKEYB
  18
  19 static int quit;
  20 static int use_mouse;
  21 static long fbsize;
  22
  23 static vec3_t pos = {0, 0, 0};
  24 static quat_t rot = {0, 0, 0, 1};
  25
  26 int main(int argc, char **argv)
  27 {
  28         fbsize = fb_width * fb_height * fb_bpp / CHAR_BIT;
  29
  30         init_logger("demo.log");
  31
  32         init_timer(100);
  33 #ifndef NOKEYB
  34         kb_init(32);
  35 #endif
  36
  37         if((use_mouse = have_mouse())) {
  38                 printf("initializing mouse input\n");
  39                 set_mouse_limits(0, 0, fb_width, fb_height);
  40                 set_mouse(fb_width / 2, fb_height / 2);
  41         }
  42
  43         if(!(fb_pixels = malloc(fbsize))) {
  44                 fprintf(stderr, "failed to allocate backbuffer\n");
  45                 return 1;
  46         }
  47
  48         if(!(vmem_front = set_video_mode(fb_width, fb_height, fb_bpp))) {
  49                 return 1;
  50         }
  51         /* TODO implement multiple video memory pages for flipping */
  52         vmem_back = vmem_front;
  53
  54         if(demo_init(argc, argv) == -1) {
  55                 set_text_mode();
  56                 return 1;
  57         }
  58
  59         reset_timer();
  60
  61         while(!quit) {
  62 #ifndef NOKEYB
  63                 int key;
  64                 while((key = kb_getkey()) != -1) {
  65                         demo_keyboard(key, 1);
  66                 }
  67 #else
  68                 if(kbhit()) {
  69                         demo_keyboard(getch(), 1);
  70                 }
  71 #endif
  72                 if(quit) goto break_evloop;
  73
  74                 if(use_mouse) {
  75                         mouse_bmask = read_mouse(&mouse_x, &mouse_y);
  76                 }
  77
  78                 time_msec = get_msec();
  79                 demo_draw();
  80         }
  81
  82 break_evloop:
  83         set_text_mode();
  84         demo_cleanup();
  85 #ifndef NOKEYB
  86         kb_shutdown();
  87 #endif
  88         return 0;
  89 }
  90
  91 void demo_quit(void)
  92 {
  93         quit = 1;
  94 }
  95
  96 void swap_buffers(void *pixels)
  97 {
  98         /* TODO implement page flipping */
  99         if(pixels) {
 100                 if(opt.vsync) {
 101                         wait_vsync();
 102                 }
 103                 drawFps(pixels);
 104                 memcpy(vmem_front, pixels, fbsize);
 105         } else {
 106                 drawFps(vmem_back);
 107
 108                 if(opt.vsync) {
 109                         wait_vsync();
 110                 }
 111         }
 112 }