git.mutantstargoat.com Git - demo_prior/blob - src/opt.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include "opt.h"
   5 #include "treestore.h"
   6
   7 static void print_usage(const char *argv0);
   8
   9 struct options opt = {
  10         1280, 800,
  11         1,                      /* fullscreen */
  12         1,                      /* music */
  13         1,                      /* sRGB */
  14         1                       /* anti-aliasing */
  15 };
  16
  17 int parse_args(int argc, char **argv)
  18 {
  19         int i;
  20
  21         for(i=1; i<argc; i++) {
  22                 if(strcmp(argv[i], "-s") == 0 || strcmp(argv[i], "-size") == 0) {
  23                         if(sscanf(argv[++i], "%dx%d", &opt.width, &opt.height) != 2) {
  24                                 fprintf(stderr, "%s must be followed by <width>x<height>\n", argv[-1]);
  25                                 return -1;
  26                         }
  27                 } else if(strcmp(argv[i], "-fs") == 0) {
  28                         opt.fullscr = 1;
  29                 } else if(strcmp(argv[i], "-win") == 0) {
  30                         opt.fullscr = 0;
  31                 } else if(strcmp(argv[i], "-srgb") == 0) {
  32                         opt.srgb = 1;
  33                 } else if(strcmp(argv[i], "-nosrgb") == 0) {
  34                         opt.srgb = 0;
  35                 } else if(strcmp(argv[i], "-aa") == 0) {
  36                         opt.msaa = 1;
  37                 } else if(strcmp(argv[i], "-noaa") == 0) {
  38                         opt.msaa = 0;
  39                 } else if(strcmp(argv[i], "-music") == 0) {
  40                         opt.music = 1;
  41                 } else if(strcmp(argv[i], "-nomusic") == 0) {
  42                         opt.music = 0;
  43                 } else if(strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-help") == 0) {
  44                         print_usage(argv[0]);
  45                         exit(0);
  46                 } else {
  47                         fprintf(stderr, "invalid argument: %s\n", argv[i]);
  48                         print_usage(argv[0]);
  49                         return -1;
  50                 }
  51         }
  52         return 0;
  53 }
  54
  55 static void print_usage(const char *argv0)
  56 {
  57         printf("Usage: %s [options]\n", argv0);
  58         printf("  -fs: fullscr\n");
  59         printf("  -win: windowed\n");
  60         printf("  -s,-size <WxH>: windowed resolution\n");
  61         printf("  -srgb/-nosrgb: enable/disable sRGB framebuffer\n");
  62         printf("  -aa/-noaa: enable/disable multisample anti-aliasing\n");
  63         printf("  -music/-nomusic: enable/disable music playback\n");
  64         printf("  -h,-help: print usage and exit\n");
  65 }
  66
  67 int read_cfg(const char *fname)
  68 {
  69         struct ts_node *ts;
  70
  71         if(!(ts = ts_load(fname))) {
  72                 return -1;
  73         }
  74         opt.width = ts_lookup_int(ts, "demo.width", opt.width);
  75         opt.height = ts_lookup_int(ts, "demo.height", opt.height);
  76         opt.fullscr = ts_lookup_int(ts, "demo.fullscreen", opt.fullscr);
  77         opt.music = ts_lookup_int(ts, "demo.music", opt.music);
  78         opt.srgb = ts_lookup_int(ts, "demo.srgb", opt.srgb);
  79         opt.msaa = ts_lookup_int(ts, "demo.aa", opt.msaa);
  80
  81         ts_free_tree(ts);
  82         return 0;
  83 }