forked from suyu/suyu
bf4dfb3ad4
Instead of having a vector of unique_ptr stored in a vector and returning star pointers to this, use shared_ptr. While changing initialization code, move it to a separate file when possible. This is a first step to allow code analysis and node generation beyond the ShaderIR class.
47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
// Copyright 2018 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "video_core/engines/shader_bytecode.h"
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#include "video_core/shader/node_helper.h"
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#include "video_core/shader/shader_ir.h"
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namespace VideoCommon::Shader {
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using Tegra::Shader::Instruction;
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using Tegra::Shader::OpCode;
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u32 ShaderIR::DecodePredicateSetRegister(NodeBlock& bb, u32 pc) {
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const Instruction instr = {program_code[pc]};
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const auto opcode = OpCode::Decode(instr);
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UNIMPLEMENTED_IF_MSG(instr.generates_cc,
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"Condition codes generation in PSET is not implemented");
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const Node op_a = GetPredicate(instr.pset.pred12, instr.pset.neg_pred12 != 0);
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const Node op_b = GetPredicate(instr.pset.pred29, instr.pset.neg_pred29 != 0);
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const Node first_pred = Operation(GetPredicateCombiner(instr.pset.cond), op_a, op_b);
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const Node second_pred = GetPredicate(instr.pset.pred39, instr.pset.neg_pred39 != 0);
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const OperationCode combiner = GetPredicateCombiner(instr.pset.op);
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const Node predicate = Operation(combiner, first_pred, second_pred);
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const Node true_value = instr.pset.bf ? Immediate(1.0f) : Immediate(0xffffffff);
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const Node false_value = instr.pset.bf ? Immediate(0.0f) : Immediate(0);
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const Node value =
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Operation(OperationCode::Select, PRECISE, predicate, true_value, false_value);
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if (instr.pset.bf) {
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SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
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} else {
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SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
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}
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SetRegister(bb, instr.gpr0, value);
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return pc;
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}
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} // namespace VideoCommon::Shader
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