diff options
| author | Brian Paul <brianp@vmware.com> | 2009-06-16 08:48:12 -0600 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2009-06-17 11:30:04 -0600 |
| commit | 84943a2aca3e69f89b8bc5bbfc585d3a35e44cf4 (patch) | |
| tree | 9edd9e7fc8e433f4356fb5af97f8de39d296d972 | |
| parent | b83c9ecef41dc329c34aca722cb08339592a8be0 (diff) | |
mesa: fix REMAINDER() macro
The results were incorrect for some negative values of A.
See bug 21872.
(cherry picked from mesa_7_5_branch, commit ed7f4b42307bff4633689d6781cd3643f10041e5)
| -rw-r--r-- | src/mesa/swrast/s_texfilter.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/swrast/s_texfilter.c b/src/mesa/swrast/s_texfilter.c index fce0bcf0ca..f86dbdb23a 100644 --- a/src/mesa/swrast/s_texfilter.c +++ b/src/mesa/swrast/s_texfilter.c @@ -226,7 +226,7 @@ lerp_rgba_3d(GLchan result[4], GLfloat a, GLfloat b, GLfloat c, * If A is a signed integer, A % B doesn't give the right value for A < 0 * (in terms of texture repeat). Just casting to unsigned fixes that. */ -#define REMAINDER(A, B) ((unsigned) (A) % (unsigned) (B)) +#define REMAINDER(A, B) (((A) + (B) * 1024) % (B)) /** |