diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/radeonsi/radeonsi_shader.c | 27 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state_draw.c | 5 |
2 files changed, 31 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c index aec5c2ea222..53e889c19de 100644 --- a/src/gallium/drivers/radeonsi/radeonsi_shader.c +++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c @@ -266,6 +266,33 @@ static void declare_input_fs( return; } + if (decl->Semantic.Name == TGSI_SEMANTIC_FACE) { + LLVMValueRef face, is_face_positive; + + face = build_intrinsic(gallivm->builder, + "llvm.SI.fs.read.face", + input_type, + NULL, 0, LLVMReadNoneAttribute); + is_face_positive = LLVMBuildFCmp(gallivm->builder, + LLVMRealUGT, face, + lp_build_const_float(gallivm, 0.0f), + ""); + + si_shader_ctx->radeon_bld.inputs[radeon_llvm_reg_index_soa(input_index, 0)] = + LLVMBuildSelect(gallivm->builder, + is_face_positive, + lp_build_const_float(gallivm, 1.0f), + lp_build_const_float(gallivm, 0.0f), + ""); + 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); + + return; + } + shader->input[input_index].param_offset = shader->ninterp++; attr_number = lp_build_const_int32(gallivm, shader->input[input_index].param_offset); diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c index 3ac80b0a6e4..d5587c78a33 100644 --- a/src/gallium/drivers/radeonsi/si_state_draw.c +++ b/src/gallium/drivers/radeonsi/si_state_draw.c @@ -110,7 +110,8 @@ static void si_pipe_shader_ps(struct pipe_context *ctx, struct si_pipe_shader *s db_shader_control = S_02880C_Z_ORDER(V_02880C_EARLY_Z_THEN_LATE_Z); for (i = 0; i < shader->shader.ninput; i++) { - if (shader->shader.input[i].name == TGSI_SEMANTIC_POSITION) { + switch (shader->shader.input[i].name) { + case TGSI_SEMANTIC_POSITION: if (shader->shader.input[i].centroid) { /* fragcoord_interp_mode will be written to * SPI_BARYC_CNTL.POS_FLOAT_LOCATION @@ -122,6 +123,8 @@ static void si_pipe_shader_ps(struct pipe_context *ctx, struct si_pipe_shader *s */ fragcoord_interp_mode = 1; } + /* Fall through */ + case TGSI_SEMANTIC_FACE: continue; } |