X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Ftunnel.c;h=63f0f9feff3a3b51be8559eb77e717797328b75a;hb=refs%2Fheads%2Fmusic;hp=55eaefadaa56a83ca3948909a46c42380aee0540;hpb=62b7a04b073e5a605cf2a455908b5f8607b6f2ae;p=dosdemo

diff --git a/src/tunnel.c b/src/tunnel.c
index 55eaefa..63f0f9f 100644
--- a/src/tunnel.c
+++ b/src/tunnel.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <math.h>
 #include <assert.h>
 #include "imago2.h"
@@ -26,8 +27,6 @@ static void draw_tunnel_range(unsigned short *pixels, int xoffs, int yoffs, int
 static int count_bits(unsigned int x);
 static int count_zeros(unsigned int x);
 
-static unsigned int *gen_test_image(int *wptr, int *hptr);
-
 static struct screen scr = {
 	"tunnel",
 	init,
@@ -181,8 +180,15 @@ static void draw(void)
 
 	for(i=0; i<NUM_WORK_ITEMS; i++) {
 		int starty = i * num_lines;
-		draw_tunnel_range((unsigned short*)fb_pixels, xoffs, yoffs, starty, draw_lines, time_msec);
+		int resty = starty + draw_lines;
+		int rest_lines = num_lines - draw_lines;
+		draw_tunnel_range(vmem_back, xoffs, yoffs, starty, draw_lines, time_msec);
+		if(rest_lines) {
+			memset(vmem_back + resty * fb_width, 0, rest_lines * fb_width * 2);
+		}
 	}
+
+	swap_buffers(0);
 }
 
 static void tunnel_color(int *rp, int *gp, int *bp, long toffs, unsigned int tpacked, int fog)
@@ -258,6 +264,7 @@ static int count_zeros(unsigned int x)
 	return num;
 }
 
+/*
 static unsigned int *gen_test_image(int *wptr, int *hptr)
 {
 	int i, j;
@@ -281,3 +288,4 @@ static unsigned int *gen_test_image(int *wptr, int *hptr)
 	*hptr = ysz;
 	return pixels;
 }
+*/