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Diffstat (limited to 'src/gallium/drivers/radeonsi/radeonsi_shader.c')
-rw-r--r--src/gallium/drivers/radeonsi/radeonsi_shader.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c
index dd9581dd95a..3d64324548c 100644
--- a/src/gallium/drivers/radeonsi/radeonsi_shader.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c
@@ -198,6 +198,8 @@ static void declare_input_fs(
struct si_shader *shader = &si_shader_ctx->shader->shader;
struct lp_build_context * base =
&si_shader_ctx->radeon_bld.soa.bld_base.base;
+ struct lp_build_context *uint =
+ &si_shader_ctx->radeon_bld.soa.bld_base.uint_bld;
struct gallivm_state * gallivm = base->gallivm;
LLVMTypeRef input_type = LLVMFloatTypeInContext(gallivm->context);
LLVMValueRef main_fn = si_shader_ctx->radeon_bld.main_fn;
@@ -341,6 +343,22 @@ static void declare_input_fs(
}
shader->ninterp++;
+ } else if (decl->Semantic.Name == TGSI_SEMANTIC_FOG) {
+ LLVMValueRef args[4];
+
+ args[0] = uint->zero;
+ args[1] = attr_number;
+ args[2] = params;
+ args[3] = interp_param;
+ si_shader_ctx->radeon_bld.inputs[radeon_llvm_reg_index_soa(input_index, 0)] =
+ build_intrinsic(base->gallivm->builder, intr_name,
+ input_type, args, args[3] ? 4 : 3,
+ LLVMReadNoneAttribute | LLVMNoUnwindAttribute);
+ si_shader_ctx->radeon_bld.inputs[radeon_llvm_reg_index_soa(input_index, 1)] =
+ si_shader_ctx->radeon_bld.inputs[radeon_llvm_reg_index_soa(input_index, 2)] =
+ lp_build_const_float(gallivm, 0.0f);
+ si_shader_ctx->radeon_bld.inputs[radeon_llvm_reg_index_soa(input_index, 3)] =
+ lp_build_const_float(gallivm, 1.0f);
} else {
for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) {
LLVMValueRef args[4];