diff options
| author | Brian Paul <brianp@vmware.com> | 2009-06-16 08:48:12 -0600 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2009-06-16 08:48:12 -0600 |
| commit | acbf9c6f3c569c044dec2fd2b963ed80fe33af25 (patch) | |
| tree | c78daf12f72b540928dee299454e8546d7e23ca2 | |
| parent | 3b842feead88827a3c4f1ecafab72db96a2ac997 (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)) /** |