X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fdemo.c;h=9954cb548cff0baecb8da2b97d88f79d97c1d42e;hb=ca615218c7fd2c98ced8a0976508a0faab317f81;hp=4bd02c7405d039f3ee2844d05955e58c0267f124;hpb=77c1d84c258ca14e1bba06ab711426668ff24290;p=dosdemo

diff --git a/src/demo.c b/src/demo.c
index 4bd02c7..9954cb5 100644
--- a/src/demo.c
+++ b/src/demo.c
@@ -3,24 +3,37 @@
 #include <string.h>
 #include <math.h>
 #include <errno.h>
+#include <limits.h>
 #include "demo.h"
 #include "screen.h"
 
 int fb_width = 320;
 int fb_height = 240;
 int fb_bpp = 16;
-unsigned char *fb_pixels;
+void *fb_pixels;
 unsigned long time_msec;
+int mouse_x, mouse_y;
+unsigned int mouse_bmask;
 
 static unsigned long nframes;
+static const char *start_scr_name = "tunnel";
 
 int demo_init(int argc, char **argv)
 {
+	if(argv[1]) {
+		start_scr_name = argv[1];
+	}
+
 	if(scr_init() == -1) {
 		return -1;
 	}
-	scr_change(scr_lookup("tunnel"), 4000);
+	if(scr_change(scr_lookup(start_scr_name), 4000) == -1) {
+		fprintf(stderr, "screen %s not found\n", start_scr_name);
+		return -1;
+	}
 
+	/* clear the framebuffer at least once */
+	memset(fb_pixels, 0, fb_width * fb_height * fb_bpp / CHAR_BIT);
 	return 0;
 }