[Mesa-dev] [PATCH] lp_build_lod_selector: Disable brilinear folding on explicit lod.

[Olivier Galibert]

Brilinear folding must only be used if the log2 was computed with
brilinear too.  Fixes fs-textureLod-miplevels.

Signed-off-by: Olivier Galibert <galibert at pobox.com>
---
 src/gallium/auxiliary/gallivm/lp_bld_sample.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.c b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
index d966788..9deda61 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
@@ -513,7 +513,7 @@ lp_build_lod_selector(struct lp_build_sample_context *bld,
    }
 
    if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
-      if (!(gallivm_debug & GALLIVM_DEBUG_NO_BRILINEAR)) {
+      if (!explicit_lod && !(gallivm_debug & GALLIVM_DEBUG_NO_BRILINEAR)) {
          lp_build_brilinear_lod(float_bld, lod, BRILINEAR_FACTOR,
                                 out_lod_ipart, out_lod_fpart);
       }
-- 
1.7.10.280.gaa39