Mesa (master): llvmpipe: clamp texcoords in lp_build_sample_compare()
Brian Paul
brianp at kemper.freedesktop.org
Tue Mar 8 02:00:31 UTC 2011
Module: Mesa
Branch: master
Commit: 2c1ef65a04de8d61fddee55c7a2f0673d69235d5
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=2c1ef65a04de8d61fddee55c7a2f0673d69235d5
Author: Brian Paul <brianp at vmware.com>
Date: Mon Mar 7 18:59:39 2011 -0700
llvmpipe: clamp texcoords in lp_build_sample_compare()
See previous commit for more info.
NOTE: This is a candidate for the 7.10 branch.
---
src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
index 1fec3ad..9961ba0 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
@@ -1108,6 +1108,11 @@ lp_build_sample_compare(struct lp_build_sample_context *bld,
coord, tex);
}
+ /* Clamp p coords to [0,1] */
+ p = lp_build_clamp(&bld->coord_bld, p,
+ bld->coord_bld.zero,
+ bld->coord_bld.one);
+
/* result = (p FUNC texel) ? 1 : 0 */
res = lp_build_cmp(texel_bld, bld->static_state->compare_func,
p, texel[chan]);
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