X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fvmath.h;h=3cdbedf7fc4353ccf494b2a456d508ec2304975a;hb=77e0a84543a31aecceabc0e4b18a0d37ad92c89b;hp=6d1add9a1d89b850b93f60e9e29fe84254b7f1c6;hpb=b546d1a5227ee3a263447e279434842d230f700a;p=dosdemo

diff --git a/src/vmath.h b/src/vmath.h
index 6d1add9..3cdbedf 100644
--- a/src/vmath.h
+++ b/src/vmath.h
@@ -126,4 +126,19 @@ static INLINE quat_t quat_rotate(quat_t q, float angle, float x, float y, float
 	return quat_mul(q, rq);
 }
 
+static INLINE void mat4_transpose(float *mat)
+{
+	int i, j;
+
+	for(i=0; i<4; i++) {
+		for(j=0; j<i; j++) {
+			int rowidx = i * 4 + j;
+			int colidx = j * 4 + i;
+			float tmp = mat[rowidx];
+			mat[rowidx] = mat[colidx];
+			mat[colidx] = tmp;
+		}
+	}
+}
+
 #endif	/* VMATH_H_ */