diff options
author | Keith Whitwell <keithw@vmware.com> | 2010-09-30 16:43:56 +0100 |
---|---|---|
committer | José Fonseca <jfonseca@vmware.com> | 2010-10-06 18:49:32 +0100 |
commit | 5849a6ab6412eddd4552329178e6edb0bea92977 (patch) | |
tree | 69d4d1899dc25b750fd6a9bc93311451af27f01a /src/gallium/auxiliary/gallivm/lp_bld_sample.c | |
parent | af05f6157668b3c5e6fd73c3d743b11e619b9067 (diff) |
gallivm: don't apply zero lod_bias
Diffstat (limited to 'src/gallium/auxiliary/gallivm/lp_bld_sample.c')
-rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_sample.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.c b/src/gallium/auxiliary/gallivm/lp_bld_sample.c index acd99741f1..2227a062d0 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.c @@ -132,6 +132,10 @@ lp_sampler_static_state(struct lp_sampler_static_state *state, state->min_mip_filter = PIPE_TEX_MIPFILTER_NONE; } + if (sampler->lod_bias != 0.0) { + state->lod_bias_non_zero = 1; + } + /* If min_lod == max_lod we can greatly simplify mipmap selection. * This is a case that occurs during automatic mipmap generation. */ @@ -258,7 +262,8 @@ lp_build_lod_selector(struct lp_build_sample_context *bld, } /* add sampler lod bias */ - lod = LLVMBuildFAdd(bld->builder, lod, sampler_lod_bias, "sampler_lod_bias"); + if (bld->static_state->lod_bias_non_zero) + lod = LLVMBuildFAdd(bld->builder, lod, sampler_lod_bias, "sampler_lod_bias"); /* clamp lod */ lod = lp_build_clamp(float_bld, lod, min_lod, max_lod); |