blank dos build

[retrobench] / src / dos / main.c

diff --git a/src/dos/main.c b/src/dos/main.c
new file mode 100644 (file)
index 0000000..5a1a13a
--- /dev/null
+++ b/src/dos/main.c
@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "rbench.h"
+
+static int parse_args(int argc, char **argv);
+
+int main(int argc, char **argv)
+{
+       read_config("rbench.cfg");
+
+       if(parse_args(argc, argv) == -1) {
+               return 1;
+       }
+
+       printf("foo %dx%d %dbpp\n", opt.width, opt.height, opt.bpp);
+
+       return 0;
+}
+
+
+static const char *usage_str =
+       "Usage: %s [options]\n"
+       "Options:\n"
+       "  -s <WxH>: resolution\n"
+       "  -b <bpp>: color depth\n"
+       "  -h: print usage and exit\n";
+
+static int parse_args(int argc, char **argv)
+{
+       int i;
+
+       for(i=1; i<argc; i++) {
+               if(argv[i][0] == '-') {
+                       if(argv[i][2]) {
+                               goto inval_arg;
+                       }
+                       switch(argv[i][1]) {
+                       case 's':
+                               if(!argv[++i] || sscanf(argv[i], "%dx%d", &opt.width, &opt.height) != 2) {
+                                       fprintf(stderr, "-s must be followed by WxH\n");
+                                       return -1;
+                               }
+                               break;
+
+                       case 'b':
+                               if(!argv[++i] || !(opt.bpp = atoi(argv[i]))) {
+                                       fprintf(stderr, "-b must be followed by the color depth\n");
+                                       return -1;
+                               }
+                               break;
+
+                       case 'h':
+                               printf(usage_str, argv[0]);
+                               exit(0);
+
+                       default:
+                               goto inval_arg;
+                       }
+               } else {
+inval_arg:     fprintf(stderr, "invalid argument: %s\n", argv[i]);
+                       return -1;
+               }
+       }
+       return 0;
+}
+