X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=demo_prior;a=blobdiff_plain;f=src%2Fopt.c;fp=src%2Fopt.c;h=796722cc58a42701cdc6d8293fad7731a1b44659;hp=0000000000000000000000000000000000000000;hb=44a7a61d2bec54ed741930572e63e5015326daca;hpb=ec776ad8bf37d25b9308e2c770d66247135b46ea

diff --git a/src/opt.c b/src/opt.c
new file mode 100644
index 0000000..796722c
--- /dev/null
+++ b/src/opt.c
@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "opt.h"
+#include "treestore.h"
+
+static void print_usage(const char *argv0);
+
+struct options opt = {
+	1280, 800,
+	1,			/* fullscreen */
+	1,			/* music */
+	1,			/* sRGB */
+	1			/* anti-aliasing */
+};
+
+int parse_args(int argc, char **argv)
+{
+	int i;
+
+	for(i=1; i<argc; i++) {
+		if(strcmp(argv[i], "-s") == 0 || strcmp(argv[i], "-size") == 0) {
+			if(sscanf(argv[++i], "%dx%d", &opt.width, &opt.height) != 2) {
+				fprintf(stderr, "%s must be followed by <width>x<height>\n", argv[-1]);
+				return -1;
+			}
+		} else if(strcmp(argv[i], "-fs") == 0) {
+			opt.fullscr = 1;
+		} else if(strcmp(argv[i], "-win") == 0) {
+			opt.fullscr = 0;
+		} else if(strcmp(argv[i], "-srgb") == 0) {
+			opt.srgb = 1;
+		} else if(strcmp(argv[i], "-nosrgb") == 0) {
+			opt.srgb = 0;
+		} else if(strcmp(argv[i], "-aa") == 0) {
+			opt.msaa = 1;
+		} else if(strcmp(argv[i], "-noaa") == 0) {
+			opt.msaa = 0;
+		} else if(strcmp(argv[i], "-music") == 0) {
+			opt.music = 1;
+		} else if(strcmp(argv[i], "-nomusic") == 0) {
+			opt.music = 0;
+		} else if(strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-help") == 0) {
+			print_usage(argv[0]);
+			exit(0);
+		} else {
+			fprintf(stderr, "invalid argument: %s\n", argv[i]);
+			print_usage(argv[0]);
+			return -1;
+		}
+	}
+	return 0;
+}
+
+static void print_usage(const char *argv0)
+{
+	printf("Usage: %s [options]\n", argv0);
+	printf("  -fs: fullscr\n");
+	printf("  -win: windowed\n");
+	printf("  -s,-size <WxH>: windowed resolution\n");
+	printf("  -srgb/-nosrgb: enable/disable sRGB framebuffer\n");
+	printf("  -aa/-noaa: enable/disable multisample anti-aliasing\n");
+	printf("  -music/-nomusic: enable/disable music playback\n");
+	printf("  -h,-help: print usage and exit\n");
+}
+
+int read_cfg(const char *fname)
+{
+	struct ts_node *ts;
+
+	if(!(ts = ts_load(fname))) {
+		return -1;
+	}
+	opt.width = ts_lookup_int(ts, "demo.width", opt.width);
+	opt.height = ts_lookup_int(ts, "demo.height", opt.height);
+	opt.fullscr = ts_lookup_int(ts, "demo.fullscreen", opt.fullscr);
+	opt.music = ts_lookup_int(ts, "demo.music", opt.music);
+	opt.srgb = ts_lookup_int(ts, "demo.srgb", opt.srgb);
+	opt.msaa = ts_lookup_int(ts, "demo.aa", opt.msaa);
+
+	ts_free_tree(ts);
+	return 0;
+}