X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosdemo;a=blobdiff_plain;f=src%2Ftunnel.c;h=9071b74ea4a1cba12010c6bcd4c86c88bfff6da3;hp=55eaefadaa56a83ca3948909a46c42380aee0540;hb=3398fc6c4188104048f99b650a6cb90beda9b6ed;hpb=62b7a04b073e5a605cf2a455908b5f8607b6f2ae

diff --git a/src/tunnel.c b/src/tunnel.c
index 55eaefa..9071b74 100644
--- a/src/tunnel.c
+++ b/src/tunnel.c
@@ -1,10 +1,12 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <math.h>
 #include <assert.h>
 #include "imago2.h"
 #include "demo.h"
 #include "screen.h"
+#include "gfxutil.h"
 
 #ifndef M_PI
 #define M_PI	3.1415926535
@@ -26,8 +28,6 @@ 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 +181,15 @@ 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(fb_pixels, xoffs, yoffs, starty, draw_lines, time_msec);
+		if(rest_lines) {
+			memset(fb_pixels + 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)
@@ -207,18 +214,13 @@ static void tunnel_color(int *rp, int *gp, int *bp, long toffs, unsigned int tpa
 	*bp = (b * fog) >> 8;
 }
 
-#define PACK_RGB16(r, g, b) \
-	(((((r) >> 3) & 0x1f) << 11) | ((((g) >> 2) & 0x3f) << 5) | (((b) >> 3) & 0x1f))
-#define PACK_RGB32(r, g, b) \
-	((((r) & 0xff) << 16) | (((g) & 0xff) << 8) | ((b) & 0xff))
-
 static void draw_tunnel_range(unsigned short *pix, int xoffs, int yoffs, int starty, int num_lines, long tm)
 {
 	int i, j;
 	unsigned int *tmap = tunnel_map + (starty + yoffs) * vxsz + xoffs;
 	unsigned char *fog = tunnel_fog + (starty + yoffs) * vxsz + xoffs;
 
-	long toffs = tm / 4;
+	long toffs = tm / 8;
 	unsigned int *pixels = (unsigned int*)pix + starty * (fb_width >> 1);
 
 	for(i=0; i<num_lines; i++) {
@@ -258,6 +260,7 @@ static int count_zeros(unsigned int x)
 	return num;
 }
 
+/*
 static unsigned int *gen_test_image(int *wptr, int *hptr)
 {
 	int i, j;
@@ -281,3 +284,4 @@ static unsigned int *gen_test_image(int *wptr, int *hptr)
 	*hptr = ysz;
 	return pixels;
 }
+*/