diff options
Diffstat (limited to 'src/gallium/drivers/radeon')
-rw-r--r-- | src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c | 92 |
1 files changed, 91 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c index 502d551dce1..6e6fc3d12cd 100644 --- a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c +++ b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c @@ -509,6 +509,87 @@ static void kil_emit( } } + +static void emit_prepare_cube_coords( + struct lp_build_tgsi_context * bld_base, + struct lp_build_emit_data * emit_data) +{ + boolean shadowcube = (emit_data->inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE); + struct gallivm_state * gallivm = bld_base->base.gallivm; + LLVMBuilderRef builder = gallivm->builder; + LLVMTypeRef type = bld_base->base.elem_type; + LLVMValueRef coords[4]; + LLVMValueRef mad_args[3]; + unsigned i, cnt; + + LLVMValueRef v = lp_build_intrinsic(builder, "llvm.AMDGPU.cube", + LLVMVectorType(type, 4), + &emit_data->args[0],1); + + /* save src.w for shadow cube */ + cnt = shadowcube ? 3 : 4; + + for (i = 0; i < cnt; ++i) { + LLVMValueRef idx = lp_build_const_int32(gallivm, i); + coords[i] = LLVMBuildExtractElement(builder, v, idx, ""); + } + + coords[2] = lp_build_intrinsic(builder, "llvm.AMDIL.fabs.", + type, &coords[2], 1); + coords[2] = lp_build_intrinsic(builder, "llvm.AMDGPU.rcp", + type, &coords[2], 1); + + mad_args[1] = coords[2]; + mad_args[2] = LLVMConstReal(type, 1.5); + + mad_args[0] = coords[0]; + coords[0] = lp_build_intrinsic(builder, "llvm.AMDIL.mad.", + type, mad_args, 3); + + mad_args[0] = coords[1]; + coords[1] = lp_build_intrinsic(builder, "llvm.AMDIL.mad.", + type, mad_args, 3); + + /* apply yxwy swizzle to cooords */ + coords[2] = coords[3]; + coords[3] = coords[1]; + coords[1] = coords[0]; + coords[0] = coords[3]; + + emit_data->args[0] = lp_build_gather_values(bld_base->base.gallivm, + coords, 4); +} + +static void txp_fetch_args( + struct lp_build_tgsi_context * bld_base, + struct lp_build_emit_data * emit_data) +{ + const struct tgsi_full_instruction * inst = emit_data->inst; + LLVMValueRef src_w; + unsigned chan; + LLVMValueRef coords[4]; + + emit_data->dst_type = LLVMVectorType(bld_base->base.elem_type, 4); + src_w = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_W); + + for (chan = 0; chan < 3; chan++ ) { + LLVMValueRef arg = lp_build_emit_fetch(bld_base, + emit_data->inst, 0, chan); + coords[chan] = lp_build_emit_llvm_binary(bld_base, + TGSI_OPCODE_DIV, arg, src_w); + } + coords[3] = bld_base->base.one; + emit_data->args[0] = lp_build_gather_values(bld_base->base.gallivm, + coords, 4); + emit_data->arg_count = 1; + + if ((inst->Texture.Texture == TGSI_TEXTURE_CUBE || + inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE) && + inst->Instruction.Opcode != TGSI_OPCODE_TXQ) { + emit_prepare_cube_coords(bld_base, emit_data); + } +} + static void tex_fetch_args( struct lp_build_tgsi_context * bld_base, struct lp_build_emit_data * emit_data) @@ -521,16 +602,24 @@ static void tex_fetch_args( */ + const struct tgsi_full_instruction * inst = emit_data->inst; + LLVMValueRef coords[4]; unsigned chan; for (chan = 0; chan < 4; chan++) { - coords[chan] = lp_build_emit_fetch(bld_base, emit_data->inst, 0, chan); + coords[chan] = lp_build_emit_fetch(bld_base, inst, 0, chan); } emit_data->arg_count = 1; emit_data->args[0] = lp_build_gather_values(bld_base->base.gallivm, coords, 4); emit_data->dst_type = LLVMVectorType(bld_base->base.elem_type, 4); + + if ((inst->Texture.Texture == TGSI_TEXTURE_CUBE || + inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE) && + inst->Instruction.Opcode != TGSI_OPCODE_TXQ) { + emit_prepare_cube_coords(bld_base, emit_data); + } } static void emit_icmp( @@ -954,6 +1043,7 @@ void radeon_llvm_context_init(struct radeon_llvm_context * ctx) bld_base->op_actions[TGSI_OPCODE_TXD].intr_name = "llvm.AMDGPU.txd"; bld_base->op_actions[TGSI_OPCODE_TXL].fetch_args = tex_fetch_args; bld_base->op_actions[TGSI_OPCODE_TXL].intr_name = "llvm.AMDGPU.txl"; + bld_base->op_actions[TGSI_OPCODE_TXP].fetch_args = txp_fetch_args; bld_base->op_actions[TGSI_OPCODE_TXP].intr_name = "llvm.AMDGPU.tex"; bld_base->op_actions[TGSI_OPCODE_TRUNC].emit = lp_build_tgsi_intrinsic; bld_base->op_actions[TGSI_OPCODE_TRUNC].intr_name = "llvm.AMDGPU.trunc"; |