eden-emu
/
eden
mirror of https://git.eden-emu.dev/eden-emu/eden.git
1
0
Fork 0
Code Releases Wiki Activity
Browse Source

shader_ir/decode: Fix half float pre-operations and remove MetaHalfArithmetic 

Operations done before the main half float operation (like HAdd) were
managing a packed value instead of the unpacked one. Adding an unpacked
operation allows us to drop the per-operand MetaHalfArithmetic entry,
simplifying the code overall.
pull/15/merge
ReinUsesLisp 7 years ago
parent
abcbcb1b2a
commit
f43995ec53
9 changed files with 72 additions and 85 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 51
      src/video_core/renderer_opengl/gl_shader_decompiler.cpp
  2. 12
      src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
  3. 11
      src/video_core/shader/decode/arithmetic_half.cpp
  4. 7
      src/video_core/shader/decode/arithmetic_half_immediate.cpp
  5. 12
      src/video_core/shader/decode/half_set.cpp
  6. 8
      src/video_core/shader/decode/half_set_predicate.cpp
  7. 12
      src/video_core/shader/decode/hfma2.cpp
  8. 18
      src/video_core/shader/shader_ir.cpp
  9. 26
      src/video_core/shader/shader_ir.h

51
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View File

@ -121,14 +121,10 @@ std::string GetTopologyName(Tegra::Shader::OutputTopology topology) {
/// Returns true if an object has to be treated as precise /// Returns true if an object has to be treated as precise
bool IsPrecise(Operation operand) { bool IsPrecise(Operation operand) {
const auto& meta = operand.GetMeta();
const auto& meta{operand.GetMeta()};
if (const auto arithmetic = std::get_if<MetaArithmetic>(&meta)) { if (const auto arithmetic = std::get_if<MetaArithmetic>(&meta)) {
return arithmetic->precise; return arithmetic->precise;
} }
if (const auto half_arithmetic = std::get_if<MetaHalfArithmetic>(&meta)) {
return half_arithmetic->precise;
}
return false; return false;
} }
@ -617,26 +613,7 @@ private:
} }
std::string VisitOperand(Operation operation, std::size_t operand_index, Type type) { std::string VisitOperand(Operation operation, std::size_t operand_index, Type type) {
const std::string value = VisitOperand(operation, operand_index);
switch (type) {
case Type::HalfFloat: {
const auto half_meta = std::get_if<MetaHalfArithmetic>(&operation.GetMeta());
ASSERT(half_meta);
switch (half_meta->types.at(operand_index)) {
case Tegra::Shader::HalfType::H0_H1:
return "toHalf2(" + value + ')';
case Tegra::Shader::HalfType::F32:
return "vec2(" + value + ')';
case Tegra::Shader::HalfType::H0_H0:
return "vec2(toHalf2(" + value + ")[0])";
case Tegra::Shader::HalfType::H1_H1:
return "vec2(toHalf2(" + value + ")[1])";
}
}
default:
return CastOperand(value, type);
}
return CastOperand(VisitOperand(operation, operand_index), type);
} }
std::string CastOperand(const std::string& value, Type type) const { std::string CastOperand(const std::string& value, Type type) const {
@ -650,9 +627,7 @@ private:
case Type::Uint: case Type::Uint:
return "ftou(" + value + ')'; return "ftou(" + value + ')';
case Type::HalfFloat: case Type::HalfFloat:
// Can't be handled as a stand-alone value
UNREACHABLE();
return value;
return "toHalf2(" + value + ')';
} }
UNREACHABLE(); UNREACHABLE();
return value; return value;
@ -1073,6 +1048,25 @@ private:
return ApplyPrecise(operation, BitwiseCastResult(clamped, Type::HalfFloat)); return ApplyPrecise(operation, BitwiseCastResult(clamped, Type::HalfFloat));
} }
std::string HUnpack(Operation operation) {
const std::string operand{VisitOperand(operation, 0, Type::HalfFloat)};
const auto value = [&]() -> std::string {
switch (std::get<Tegra::Shader::HalfType>(operation.GetMeta())) {
case Tegra::Shader::HalfType::H0_H1:
return operand;
case Tegra::Shader::HalfType::F32:
return "vec2(fromHalf2(" + operand + "))";
case Tegra::Shader::HalfType::H0_H0:
return "vec2(" + operand + "[0])";
case Tegra::Shader::HalfType::H1_H1:
return "vec2(" + operand + "[1])";
}
UNREACHABLE();
return "0";
}();
return "fromHalf2(" + value + ')';
}
std::string HMergeF32(Operation operation) { std::string HMergeF32(Operation operation) {
return "float(toHalf2(" + Visit(operation[0]) + ")[0])"; return "float(toHalf2(" + Visit(operation[0]) + ")[0])";
} }
@ -1508,6 +1502,7 @@ private:
&GLSLDecompiler::Absolute<Type::HalfFloat>, &GLSLDecompiler::Absolute<Type::HalfFloat>,
&GLSLDecompiler::HNegate, &GLSLDecompiler::HNegate,
&GLSLDecompiler::HClamp, &GLSLDecompiler::HClamp,
&GLSLDecompiler::HUnpack,
&GLSLDecompiler::HMergeF32, &GLSLDecompiler::HMergeF32,
&GLSLDecompiler::HMergeH0, &GLSLDecompiler::HMergeH0,
&GLSLDecompiler::HMergeH1, &GLSLDecompiler::HMergeH1,

12
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
View File

@ -76,14 +76,10 @@ constexpr u32 GetGenericAttributeLocation(Attribute::Index attribute) {
/// Returns true if an object has to be treated as precise /// Returns true if an object has to be treated as precise
bool IsPrecise(Operation operand) { bool IsPrecise(Operation operand) {
const auto& meta = operand.GetMeta();
const auto& meta{operand.GetMeta()};
if (std::holds_alternative<MetaArithmetic>(meta)) { if (std::holds_alternative<MetaArithmetic>(meta)) {
return std::get<MetaArithmetic>(meta).precise; return std::get<MetaArithmetic>(meta).precise;
} }
if (std::holds_alternative<MetaHalfArithmetic>(meta)) {
return std::get<MetaHalfArithmetic>(meta).precise;
}
return false; return false;
} }
@ -749,6 +745,11 @@ private:
return {}; return {};
} }
Id HUnpack(Operation operation) {
UNIMPLEMENTED();
return {};
}
Id HMergeF32(Operation operation) { Id HMergeF32(Operation operation) {
UNIMPLEMENTED(); UNIMPLEMENTED();
return {}; return {};
@ -1222,6 +1223,7 @@ private:
&SPIRVDecompiler::Unary<&Module::OpFAbs, Type::HalfFloat>, &SPIRVDecompiler::Unary<&Module::OpFAbs, Type::HalfFloat>,
&SPIRVDecompiler::HNegate, &SPIRVDecompiler::HNegate,
&SPIRVDecompiler::HClamp, &SPIRVDecompiler::HClamp,
&SPIRVDecompiler::HUnpack,
&SPIRVDecompiler::HMergeF32, &SPIRVDecompiler::HMergeF32,
&SPIRVDecompiler::HMergeH0, &SPIRVDecompiler::HMergeH0,
&SPIRVDecompiler::HMergeH1, &SPIRVDecompiler::HMergeH1,

11
src/video_core/shader/decode/arithmetic_half.cpp
View File

@ -29,9 +29,8 @@ u32 ShaderIR::DecodeArithmeticHalf(NodeBlock& bb, u32 pc) {
const bool negate_b = const bool negate_b =
opcode->get().GetId() != OpCode::Id::HMUL2_C && instr.alu_half.negate_b != 0; opcode->get().GetId() != OpCode::Id::HMUL2_C && instr.alu_half.negate_b != 0;
const Node op_a = GetOperandAbsNegHalf(GetRegister(instr.gpr8), instr.alu_half.abs_a, negate_a);
// instr.alu_half.type_a
Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.alu_half.type_a);
op_a = GetOperandAbsNegHalf(op_a, instr.alu_half.abs_a, negate_a);
Node op_b = [&]() { Node op_b = [&]() {
switch (opcode->get().GetId()) { switch (opcode->get().GetId()) {
@ -46,17 +45,17 @@ u32 ShaderIR::DecodeArithmeticHalf(NodeBlock& bb, u32 pc) {
return Immediate(0); return Immediate(0);
} }
}(); }();
op_b = UnpackHalfFloat(op_b, instr.alu_half.type_b);
op_b = GetOperandAbsNegHalf(op_b, instr.alu_half.abs_b, negate_b); op_b = GetOperandAbsNegHalf(op_b, instr.alu_half.abs_b, negate_b);
Node value = [&]() { Node value = [&]() {
MetaHalfArithmetic meta{true, {instr.alu_half_imm.type_a, instr.alu_half.type_b}};
switch (opcode->get().GetId()) { switch (opcode->get().GetId()) {
case OpCode::Id::HADD2_C: case OpCode::Id::HADD2_C:
case OpCode::Id::HADD2_R: case OpCode::Id::HADD2_R:
return Operation(OperationCode::HAdd, meta, op_a, op_b);
return Operation(OperationCode::HAdd, PRECISE, op_a, op_b);
case OpCode::Id::HMUL2_C: case OpCode::Id::HMUL2_C:
case OpCode::Id::HMUL2_R: case OpCode::Id::HMUL2_R:
return Operation(OperationCode::HMul, meta, op_a, op_b);
return Operation(OperationCode::HMul, PRECISE, op_a, op_b);
default: default:
UNIMPLEMENTED_MSG("Unhandled half float instruction: {}", opcode->get().GetName()); UNIMPLEMENTED_MSG("Unhandled half float instruction: {}", opcode->get().GetName());
return Immediate(0); return Immediate(0);

7
src/video_core/shader/decode/arithmetic_half_immediate.cpp
View File

@ -24,18 +24,17 @@ u32 ShaderIR::DecodeArithmeticHalfImmediate(NodeBlock& bb, u32 pc) {
UNIMPLEMENTED_IF(instr.alu_half_imm.precision != Tegra::Shader::HalfPrecision::None); UNIMPLEMENTED_IF(instr.alu_half_imm.precision != Tegra::Shader::HalfPrecision::None);
} }
Node op_a = GetRegister(instr.gpr8);
Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.alu_half_imm.type_a);
op_a = GetOperandAbsNegHalf(op_a, instr.alu_half_imm.abs_a, instr.alu_half_imm.negate_a); op_a = GetOperandAbsNegHalf(op_a, instr.alu_half_imm.abs_a, instr.alu_half_imm.negate_a);
const Node op_b = UnpackHalfImmediate(instr, true); const Node op_b = UnpackHalfImmediate(instr, true);
Node value = [&]() { Node value = [&]() {
MetaHalfArithmetic meta{true, {instr.alu_half_imm.type_a}};
switch (opcode->get().GetId()) { switch (opcode->get().GetId()) {
case OpCode::Id::HADD2_IMM: case OpCode::Id::HADD2_IMM:
return Operation(OperationCode::HAdd, meta, op_a, op_b);
return Operation(OperationCode::HAdd, PRECISE, op_a, op_b);
case OpCode::Id::HMUL2_IMM: case OpCode::Id::HMUL2_IMM:
return Operation(OperationCode::HMul, meta, op_a, op_b);
return Operation(OperationCode::HMul, PRECISE, op_a, op_b);
default: default:
UNREACHABLE(); UNREACHABLE();
return Immediate(0); return Immediate(0);

12
src/video_core/shader/decode/half_set.cpp
View File

@ -22,9 +22,9 @@ u32 ShaderIR::DecodeHalfSet(NodeBlock& bb, u32 pc) {
LOG_WARNING(HW_GPU, "{} FTZ not implemented", opcode->get().GetName()); LOG_WARNING(HW_GPU, "{} FTZ not implemented", opcode->get().GetName());
} }
// instr.hset2.type_a
// instr.hset2.type_b
Node op_a = GetRegister(instr.gpr8);
Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.hset2.type_a);
op_a = GetOperandAbsNegHalf(op_a, instr.hset2.abs_a, instr.hset2.negate_a);
Node op_b = [&]() { Node op_b = [&]() {
switch (opcode->get().GetId()) { switch (opcode->get().GetId()) {
case OpCode::Id::HSET2_R: case OpCode::Id::HSET2_R:
@ -34,14 +34,12 @@ u32 ShaderIR::DecodeHalfSet(NodeBlock& bb, u32 pc) {
return Immediate(0); return Immediate(0);
} }
}(); }();
op_a = GetOperandAbsNegHalf(op_a, instr.hset2.abs_a, instr.hset2.negate_a);
op_b = UnpackHalfFloat(op_b, instr.hset2.type_b);
op_b = GetOperandAbsNegHalf(op_b, instr.hset2.abs_b, instr.hset2.negate_b); op_b = GetOperandAbsNegHalf(op_b, instr.hset2.abs_b, instr.hset2.negate_b);
const Node second_pred = GetPredicate(instr.hset2.pred39, instr.hset2.neg_pred); const Node second_pred = GetPredicate(instr.hset2.pred39, instr.hset2.neg_pred);
MetaHalfArithmetic meta{false, {instr.hset2.type_a, instr.hset2.type_b}};
const Node comparison_pair = GetPredicateComparisonHalf(instr.hset2.cond, meta, op_a, op_b);
const Node comparison_pair = GetPredicateComparisonHalf(instr.hset2.cond, op_a, op_b);
const OperationCode combiner = GetPredicateCombiner(instr.hset2.op); const OperationCode combiner = GetPredicateCombiner(instr.hset2.op);

8
src/video_core/shader/decode/half_set_predicate.cpp
View File

@ -19,10 +19,10 @@ u32 ShaderIR::DecodeHalfSetPredicate(NodeBlock& bb, u32 pc) {
UNIMPLEMENTED_IF(instr.hsetp2.ftz != 0); UNIMPLEMENTED_IF(instr.hsetp2.ftz != 0);
Node op_a = GetRegister(instr.gpr8);
Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.hsetp2.type_a);
op_a = GetOperandAbsNegHalf(op_a, instr.hsetp2.abs_a, instr.hsetp2.negate_a); op_a = GetOperandAbsNegHalf(op_a, instr.hsetp2.abs_a, instr.hsetp2.negate_a);
const Node op_b = [&]() {
Node op_b = [&]() {
switch (opcode->get().GetId()) { switch (opcode->get().GetId()) {
case OpCode::Id::HSETP2_R: case OpCode::Id::HSETP2_R:
return GetOperandAbsNegHalf(GetRegister(instr.gpr20), instr.hsetp2.abs_a, return GetOperandAbsNegHalf(GetRegister(instr.gpr20), instr.hsetp2.abs_a,
@ -32,6 +32,7 @@ u32 ShaderIR::DecodeHalfSetPredicate(NodeBlock& bb, u32 pc) {
return Immediate(0); return Immediate(0);
} }
}(); }();
op_b = UnpackHalfFloat(op_b, instr.hsetp2.type_b);
// We can't use the constant predicate as destination. // We can't use the constant predicate as destination.
ASSERT(instr.hsetp2.pred3 != static_cast<u64>(Pred::UnusedIndex)); ASSERT(instr.hsetp2.pred3 != static_cast<u64>(Pred::UnusedIndex));
@ -42,8 +43,7 @@ u32 ShaderIR::DecodeHalfSetPredicate(NodeBlock& bb, u32 pc) {
const OperationCode pair_combiner = const OperationCode pair_combiner =
instr.hsetp2.h_and ? OperationCode::LogicalAll2 : OperationCode::LogicalAny2; instr.hsetp2.h_and ? OperationCode::LogicalAll2 : OperationCode::LogicalAny2;
MetaHalfArithmetic meta = {false, {instr.hsetp2.type_a, instr.hsetp2.type_b}};
const Node comparison = GetPredicateComparisonHalf(instr.hsetp2.cond, meta, op_a, op_b);
const Node comparison = GetPredicateComparisonHalf(instr.hsetp2.cond, op_a, op_b);
const Node first_pred = Operation(pair_combiner, comparison); const Node first_pred = Operation(pair_combiner, comparison);
// Set the primary predicate to the result of Predicate OP SecondPredicate // Set the primary predicate to the result of Predicate OP SecondPredicate

12
src/video_core/shader/decode/hfma2.cpp
View File

@ -27,10 +27,6 @@ u32 ShaderIR::DecodeHfma2(NodeBlock& bb, u32 pc) {
} }
constexpr auto identity = HalfType::H0_H1; constexpr auto identity = HalfType::H0_H1;
const HalfType type_a = instr.hfma2.type_a;
const Node op_a = GetRegister(instr.gpr8);
bool neg_b{}, neg_c{}; bool neg_b{}, neg_c{};
auto [saturate, type_b, op_b, type_c, auto [saturate, type_b, op_b, type_c,
op_c] = [&]() -> std::tuple<bool, HalfType, Node, HalfType, Node> { op_c] = [&]() -> std::tuple<bool, HalfType, Node, HalfType, Node> {
@ -62,11 +58,11 @@ u32 ShaderIR::DecodeHfma2(NodeBlock& bb, u32 pc) {
}(); }();
UNIMPLEMENTED_IF_MSG(saturate, "HFMA2 saturation is not implemented"); UNIMPLEMENTED_IF_MSG(saturate, "HFMA2 saturation is not implemented");
op_b = GetOperandAbsNegHalf(op_b, false, neg_b);
op_c = GetOperandAbsNegHalf(op_c, false, neg_c);
const Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.hfma2.type_a);
op_b = GetOperandAbsNegHalf(UnpackHalfFloat(op_b, type_b), false, neg_b);
op_c = GetOperandAbsNegHalf(UnpackHalfFloat(op_c, type_c), false, neg_c);
MetaHalfArithmetic meta{true, {type_a, type_b, type_c}};
Node value = Operation(OperationCode::HFma, meta, op_a, op_b, op_c);
Node value = Operation(OperationCode::HFma, PRECISE, op_a, op_b, op_c);
value = HalfMerge(GetRegister(instr.gpr0), value, instr.hfma2.merge); value = HalfMerge(GetRegister(instr.gpr0), value, instr.hfma2.merge);
SetRegister(bb, instr.gpr0, value); SetRegister(bb, instr.gpr0, value);

18
src/video_core/shader/shader_ir.cpp
View File

@ -189,7 +189,11 @@ Node ShaderIR::UnpackHalfImmediate(Instruction instr, bool has_negation) {
const Node first_negate = GetPredicate(instr.half_imm.first_negate != 0); const Node first_negate = GetPredicate(instr.half_imm.first_negate != 0);
const Node second_negate = GetPredicate(instr.half_imm.second_negate != 0); const Node second_negate = GetPredicate(instr.half_imm.second_negate != 0);
return Operation(OperationCode::HNegate, HALF_NO_PRECISE, value, first_negate, second_negate);
return Operation(OperationCode::HNegate, NO_PRECISE, value, first_negate, second_negate);
}
Node ShaderIR::UnpackHalfFloat(Node value, Tegra::Shader::HalfType type) {
return Operation(OperationCode::HUnpack, type, value);
} }
Node ShaderIR::HalfMerge(Node dest, Node src, Tegra::Shader::HalfMerge merge) { Node ShaderIR::HalfMerge(Node dest, Node src, Tegra::Shader::HalfMerge merge) {
@ -209,10 +213,10 @@ Node ShaderIR::HalfMerge(Node dest, Node src, Tegra::Shader::HalfMerge merge) {
Node ShaderIR::GetOperandAbsNegHalf(Node value, bool absolute, bool negate) { Node ShaderIR::GetOperandAbsNegHalf(Node value, bool absolute, bool negate) {
if (absolute) { if (absolute) {
value = Operation(OperationCode::HAbsolute, HALF_NO_PRECISE, value);
value = Operation(OperationCode::HAbsolute, NO_PRECISE, value);
} }
if (negate) { if (negate) {
value = Operation(OperationCode::HNegate, HALF_NO_PRECISE, value, GetPredicate(true),
value = Operation(OperationCode::HNegate, NO_PRECISE, value, GetPredicate(true),
GetPredicate(true)); GetPredicate(true));
} }
return value; return value;
@ -224,7 +228,7 @@ Node ShaderIR::GetSaturatedHalfFloat(Node value, bool saturate) {
} }
const Node positive_zero = Immediate(std::copysignf(0, 1)); const Node positive_zero = Immediate(std::copysignf(0, 1));
const Node positive_one = Immediate(1.0f); const Node positive_one = Immediate(1.0f);
return Operation(OperationCode::HClamp, HALF_NO_PRECISE, value, positive_zero, positive_one);
return Operation(OperationCode::HClamp, NO_PRECISE, value, positive_zero, positive_one);
} }
Node ShaderIR::GetPredicateComparisonFloat(PredCondition condition, Node op_a, Node op_b) { Node ShaderIR::GetPredicateComparisonFloat(PredCondition condition, Node op_a, Node op_b) {
@ -292,8 +296,8 @@ Node ShaderIR::GetPredicateComparisonInteger(PredCondition condition, bool is_si
return predicate; return predicate;
} }
Node ShaderIR::GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition,
const MetaHalfArithmetic& meta, Node op_a, Node op_b) {
Node ShaderIR::GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition, Node op_a,
Node op_b) {
const std::unordered_map<PredCondition, OperationCode> PredicateComparisonTable = { const std::unordered_map<PredCondition, OperationCode> PredicateComparisonTable = {
{PredCondition::LessThan, OperationCode::Logical2HLessThan}, {PredCondition::LessThan, OperationCode::Logical2HLessThan},
{PredCondition::Equal, OperationCode::Logical2HEqual}, {PredCondition::Equal, OperationCode::Logical2HEqual},
@ -311,7 +315,7 @@ Node ShaderIR::GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition
UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonTable.end(), UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonTable.end(),
"Unknown predicate comparison operation"); "Unknown predicate comparison operation");
const Node predicate = Operation(comparison->second, meta, op_a, op_b);
const Node predicate = Operation(comparison->second, NO_PRECISE, op_a, op_b);
return predicate; return predicate;
} }

26
src/video_core/shader/shader_ir.h
View File

@ -109,12 +109,13 @@ enum class OperationCode {
UBitfieldExtract, /// (MetaArithmetic, uint value, int offset, int offset) -> uint UBitfieldExtract, /// (MetaArithmetic, uint value, int offset, int offset) -> uint
UBitCount, /// (MetaArithmetic, uint) -> uint UBitCount, /// (MetaArithmetic, uint) -> uint
HAdd, /// (MetaHalfArithmetic, f16vec2 a, f16vec2 b) -> f16vec2
HMul, /// (MetaHalfArithmetic, f16vec2 a, f16vec2 b) -> f16vec2
HFma, /// (MetaHalfArithmetic, f16vec2 a, f16vec2 b, f16vec2 c) -> f16vec2
HAdd, /// (MetaArithmetic, f16vec2 a, f16vec2 b) -> f16vec2
HMul, /// (MetaArithmetic, f16vec2 a, f16vec2 b) -> f16vec2
HFma, /// (MetaArithmetic, f16vec2 a, f16vec2 b, f16vec2 c) -> f16vec2
HAbsolute, /// (f16vec2 a) -> f16vec2 HAbsolute, /// (f16vec2 a) -> f16vec2
HNegate, /// (f16vec2 a, bool first, bool second) -> f16vec2 HNegate, /// (f16vec2 a, bool first, bool second) -> f16vec2
HClamp, /// (f16vec2 src, float min, float max) -> f16vec2 HClamp, /// (f16vec2 src, float min, float max) -> f16vec2
HUnpack, /// (Tegra::Shader::HalfType, T value) -> f16vec2
HMergeF32, /// (f16vec2 src) -> float HMergeF32, /// (f16vec2 src) -> float
HMergeH0, /// (f16vec2 dest, f16vec2 src) -> f16vec2 HMergeH0, /// (f16vec2 dest, f16vec2 src) -> f16vec2
HMergeH1, /// (f16vec2 dest, f16vec2 src) -> f16vec2 HMergeH1, /// (f16vec2 dest, f16vec2 src) -> f16vec2
@ -287,13 +288,6 @@ struct MetaArithmetic {
bool precise{}; bool precise{};
}; };
struct MetaHalfArithmetic {
bool precise{};
std::array<Tegra::Shader::HalfType, 3> types = {Tegra::Shader::HalfType::H0_H1,
Tegra::Shader::HalfType::H0_H1,
Tegra::Shader::HalfType::H0_H1};
};
struct MetaTexture { struct MetaTexture {
const Sampler& sampler; const Sampler& sampler;
Node array{}; Node array{};
@ -305,11 +299,10 @@ struct MetaTexture {
u32 element{}; u32 element{};
}; };
constexpr MetaArithmetic PRECISE = {true};
constexpr MetaArithmetic NO_PRECISE = {false};
constexpr MetaHalfArithmetic HALF_NO_PRECISE = {false};
inline constexpr MetaArithmetic PRECISE = {true};
inline constexpr MetaArithmetic NO_PRECISE = {false};
using Meta = std::variant<MetaArithmetic, MetaHalfArithmetic, MetaTexture>;
using Meta = std::variant<MetaArithmetic, MetaTexture, Tegra::Shader::HalfType>;
/// Holds any kind of operation that can be done in the IR /// Holds any kind of operation that can be done in the IR
class OperationNode final { class OperationNode final {
@ -713,6 +706,8 @@ private:
/// Unpacks a half immediate from an instruction /// Unpacks a half immediate from an instruction
Node UnpackHalfImmediate(Tegra::Shader::Instruction instr, bool has_negation); Node UnpackHalfImmediate(Tegra::Shader::Instruction instr, bool has_negation);
/// Unpacks a binary value into a half float pair with a type format
Node UnpackHalfFloat(Node value, Tegra::Shader::HalfType type);
/// Merges a half pair into another value /// Merges a half pair into another value
Node HalfMerge(Node dest, Node src, Tegra::Shader::HalfMerge merge); Node HalfMerge(Node dest, Node src, Tegra::Shader::HalfMerge merge);
/// Conditionally absolute/negated half float pair. Absolute is applied first /// Conditionally absolute/negated half float pair. Absolute is applied first
@ -726,8 +721,7 @@ private:
Node GetPredicateComparisonInteger(Tegra::Shader::PredCondition condition, bool is_signed, Node GetPredicateComparisonInteger(Tegra::Shader::PredCondition condition, bool is_signed,
Node op_a, Node op_b); Node op_a, Node op_b);
/// Returns a predicate comparing two half floats. meta consumes how both pairs will be compared /// Returns a predicate comparing two half floats. meta consumes how both pairs will be compared
Node GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition,
const MetaHalfArithmetic& meta, Node op_a, Node op_b);
Node GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition, Node op_a, Node op_b);
/// Returns a predicate combiner operation /// Returns a predicate combiner operation
OperationCode GetPredicateCombiner(Tegra::Shader::PredOperation operation); OperationCode GetPredicateCombiner(Tegra::Shader::PredOperation operation);

Write Preview
Loading…
Cancel
Save