X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=tools%2Flutgen.c;h=1dbb47ac59ffe93b646c219cbd2b25ebaa52742d;hb=c52a5978823a77da3570cb73b985b928bb8358d9;hp=70d764122e7bae1ac3315c35c5a9d9326277a81e;hpb=f57fab6afe62f2a476ef4afa1842c81722816451;p=gbajam22

diff --git a/tools/lutgen.c b/tools/lutgen.c
index 70d7641..1dbb47a 100644
--- a/tools/lutgen.c
+++ b/tools/lutgen.c
@@ -1,6 +1,9 @@
 #include <stdio.h>
 #include <math.h>
 
+#define SINLUT_SIZE		256
+#define SINLUT_SCALE	32767.0
+
 int main(void)
 {
 	int i;
@@ -8,9 +11,10 @@ int main(void)
 	puts("\t.data");
 	puts("\t.globl sinlut");
 	puts("sinlut:");
-	for(i=0; i<256; i++) {
-		float x = sin((float)i / 128.0f * M_PI);
-		printf("\t.short %d\n", (int)(x * 256.0f));
+	for(i=0; i<SINLUT_SIZE; i++) {
+		float t = (float)i / SINLUT_SIZE;
+		float theta = t * (M_PI * 2);
+		printf("\t.short %d\n", (int)(sin(theta) * SINLUT_SCALE));
 	}
 	return 0;
 }