X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Frbench.c;h=8b9e23ffd7da2817c8a669465a9587909e46f905;hb=80662def0bf707ae09de2d48d50156ccd84a24e3;hp=3d8eace66f9005185c98cec65b701532e45853fa;hpb=21d237fda9d909bb9588d877f244431989917af7;p=retrobench

diff --git a/src/rbench.c b/src/rbench.c
index 3d8eace..8b9e23f 100644
--- a/src/rbench.c
+++ b/src/rbench.c
@@ -1,9 +1,9 @@
 #include <stdio.h>
 #include <stdlib.h>
-#include <stdint.h>
 #include <math.h>
 #include "rbench.h"
 #include "treestor.h"
+#include "util.h"
 
 #define DEF_WIDTH	640
 #define DEF_HEIGHT	480
@@ -33,7 +33,7 @@ void cleanup(void)
 
 #define XORRGB(x, y, zoom, r, g, b) \
 	do { \
-		int xor = (((x) - fb_width/2) * (zoom) >> 10) ^ (((y) - fb_height/2) * (zoom) >> 10); \
+		int xor = (((x) - fb_width/2) * (zoom) >> 16) ^ (((y) - fb_height/2) * (zoom) >> 16); \
 		(r) = xor >> 2; \
 		(g) = xor >> 1; \
 		(b) = xor; \
@@ -45,11 +45,10 @@ void redraw(void)
 	unsigned char *fbptr;
 	uint16_t *fbptr16;
 	uint32_t *fbptr32;
-	float t = (float)time_msec / 1000.0f;
 
-	xoffs = cos(t * 0.5f) * DEF_WIDTH * 2;
-	yoffs = sin(t) * DEF_HEIGHT;
-	zoom = (sin(t * 0.75f) * 0.5f + 1.0f) * 1024.0f;
+	xoffs = COS(time_msec >> 3) * fb_width >> 15;
+	yoffs = SIN(time_msec >> 2) * fb_height >> 16;
+	zoom = (SIN(time_msec >> 5) >> 1) + 65536;
 
 	switch(fb_bpp) {
 	case 15: