diff options
| author | José Fonseca <jfonseca@vmware.com> | 2010-04-24 21:00:45 +0100 |
|---|---|---|
| committer | José Fonseca <jfonseca@vmware.com> | 2010-04-24 21:00:45 +0100 |
| commit | e54a86c6770491bb69168f3aef27e4c2dd1827d8 (patch) | |
| tree | 5ff4d9a21a91162f2904242a15d19ad21e111d42 /src/gallium/auxiliary | |
| parent | cca8abe20ec9d1a560cc3fc97545922254d2a574 (diff) | |
llvmpipe: Implement shader bias.
Fixes glean glsl1 test: texture2D(), with bias.
Diffstat (limited to 'src/gallium/auxiliary')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c index c9b613e21c..415346c15f 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c @@ -842,6 +842,7 @@ lp_build_minify(struct lp_build_sample_context *bld, * \param s vector of texcoord s values * \param t vector of texcoord t values * \param r vector of texcoord r values + * \param shader_lod_bias vector float with the shader lod bias, * \param width scalar int texture width * \param height scalar int texture height * \param depth scalar int texture depth @@ -851,6 +852,7 @@ lp_build_lod_selector(struct lp_build_sample_context *bld, LLVMValueRef s, LLVMValueRef t, LLVMValueRef r, + LLVMValueRef shader_lod_bias, LLVMValueRef width, LLVMValueRef height, LLVMValueRef depth) @@ -865,8 +867,8 @@ lp_build_lod_selector(struct lp_build_sample_context *bld, else { const int dims = texture_dims(bld->static_state->target); struct lp_build_context *float_bld = &bld->float_bld; - LLVMValueRef lod_bias = LLVMConstReal(LLVMFloatType(), - bld->static_state->lod_bias); + LLVMValueRef sampler_lod_bias = LLVMConstReal(LLVMFloatType(), + bld->static_state->lod_bias); LLVMValueRef min_lod = LLVMConstReal(LLVMFloatType(), bld->static_state->min_lod); LLVMValueRef max_lod = LLVMConstReal(LLVMFloatType(), @@ -940,8 +942,14 @@ lp_build_lod_selector(struct lp_build_sample_context *bld, /* compute lod = log2(rho) */ lod = lp_build_log2(float_bld, rho); - /* add lod bias */ - lod = LLVMBuildAdd(bld->builder, lod, lod_bias, "LOD bias"); + /* add sampler lod bias */ + lod = LLVMBuildAdd(bld->builder, lod, sampler_lod_bias, "sampler LOD bias"); + + /* add shader lod bias */ + /* XXX for now we take only the first element since our lod is scalar */ + shader_lod_bias = LLVMBuildExtractElement(bld->builder, shader_lod_bias, + LLVMConstInt(LLVMInt32Type(), 0, 0), ""); + lod = LLVMBuildAdd(bld->builder, lod, shader_lod_bias, "shader LOD bias"); /* clamp lod */ lod = lp_build_clamp(float_bld, lod, min_lod, max_lod); @@ -1527,6 +1535,7 @@ lp_build_sample_general(struct lp_build_sample_context *bld, LLVMValueRef s, LLVMValueRef t, LLVMValueRef r, + LLVMValueRef lodbias, LLVMValueRef width, LLVMValueRef height, LLVMValueRef depth, @@ -1564,7 +1573,7 @@ lp_build_sample_general(struct lp_build_sample_context *bld, /* Need to compute lod either to choose mipmap levels or to * distinguish between minification/magnification with one mipmap level. */ - lod = lp_build_lod_selector(bld, s, t, r, width, height, depth); + lod = lp_build_lod_selector(bld, s, t, r, lodbias, width, height, depth); } /* @@ -2060,7 +2069,7 @@ lp_build_sample_soa(LLVMBuilderRef builder, row_stride_array, data_array, texel); } else { - lp_build_sample_general(&bld, unit, s, t, r, + lp_build_sample_general(&bld, unit, s, t, r, lodbias, width, height, depth, width_vec, height_vec, depth_vec, row_stride_array, img_stride_array, |