diff options
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_sample.c | 7 | ||||
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_sample.h | 1 |
2 files changed, 7 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); diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.h b/src/gallium/auxiliary/gallivm/lp_bld_sample.h index 4d2eeaa5eb..bb1c8c8dce 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample.h +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.h @@ -83,6 +83,7 @@ struct lp_sampler_static_state unsigned compare_func:3; unsigned normalized_coords:1; unsigned min_max_lod_equal:1; /**< min_lod == max_lod ? */ + unsigned lod_bias_non_zero:1; }; |