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Merge pull request #3109 from FernandoS27/new-instr 

Implement FLO & TXD Instructions on GPU Shaders
This commit is contained in:
bunnei 2019-12-06 18:18:16 -05:00 committed by GitHub
parent ef2b6733d0 c8473f399e
commit e36814d6d5
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 171 additions and 8 deletions
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44
src/video_core/engines/shader_bytecode.h
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@ -799,6 +799,12 @@ union Instruction {
BitField<40, 1, u64> invert;
} popc;
union {
BitField<41, 1, u64> sh;
BitField<40, 1, u64> invert;
BitField<48, 1, u64> is_signed;
} flo;
union {
BitField<39, 3, u64> pred;
BitField<42, 1, u64> neg_pred;
@ -1439,6 +1445,26 @@ union Instruction {
}
} tlds;
union {
BitField<28, 1, u64> is_array;
BitField<29, 2, TextureType> texture_type;
BitField<35, 1, u64> aoffi_flag;
BitField<49, 1, u64> nodep_flag;
bool UsesMiscMode(TextureMiscMode mode) const {
switch (mode) {
case TextureMiscMode::AOFFI:
return aoffi_flag != 0;
case TextureMiscMode::NODEP:
return nodep_flag != 0;
default:
break;
}
return false;
}
} txd;
union {
BitField<24, 2, StoreCacheManagement> cache_management;
BitField<33, 3, ImageType> image_type;
@ -1632,6 +1658,8 @@ public:
TLD4S, // Texture Load 4 with scalar / non - vec4 source / destinations
TMML_B, // Texture Mip Map Level
TMML, // Texture Mip Map Level
TXD, // Texture Gradient/Load with Derivates
TXD_B, // Texture Gradient/Load with Derivates Bindless
SUST, // Surface Store
SULD, // Surface Load
SUATOM, // Surface Atomic Operation
@ -1664,6 +1692,9 @@ public:
ISCADD_C, // Scale and Add
ISCADD_R,
ISCADD_IMM,
FLO_R,
FLO_C,
FLO_IMM,
LEA_R1,
LEA_R2,
LEA_RZ,
@ -1727,6 +1758,10 @@ public:
SHR_C,
SHR_R,
SHR_IMM,
SHF_RIGHT_R,
SHF_RIGHT_IMM,
SHF_LEFT_R,
SHF_LEFT_IMM,
FMNMX_C,
FMNMX_R,
FMNMX_IMM,
@ -1924,6 +1959,8 @@ private:
INST("1101111100------", Id::TLD4S, Type::Texture, "TLD4S"),
INST("110111110110----", Id::TMML_B, Type::Texture, "TMML_B"),
INST("1101111101011---", Id::TMML, Type::Texture, "TMML"),
INST("11011110011110--", Id::TXD_B, Type::Texture, "TXD_B"),
INST("11011110001110--", Id::TXD, Type::Texture, "TXD"),
INST("11101011001-----", Id::SUST, Type::Image, "SUST"),
INST("11101011000-----", Id::SULD, Type::Image, "SULD"),
INST("1110101000------", Id::SUATOM, Type::Image, "SUATOM_D"),
@ -1965,6 +2002,9 @@ private:
INST("010110110100----", Id::ICMP_R, Type::ArithmeticInteger, "ICMP_R"),
INST("010010110100----", Id::ICMP_CR, Type::ArithmeticInteger, "ICMP_CR"),
INST("0011011-0100----", Id::ICMP_IMM, Type::ArithmeticInteger, "ICMP_IMM"),
INST("010111000011‬0---", Id::FLO_R, Type::ArithmeticInteger, "FLO_R"),
INST("0100110000110---", Id::FLO_C, Type::ArithmeticInteger, "FLO_C"),
INST("0011100-00110---", Id::FLO_IMM, Type::ArithmeticInteger, "FLO_IMM"),
INST("0101101111011---", Id::LEA_R2, Type::ArithmeticInteger, "LEA_R2"),
INST("0101101111010---", Id::LEA_R1, Type::ArithmeticInteger, "LEA_R1"),
INST("001101101101----", Id::LEA_IMM, Type::ArithmeticInteger, "LEA_IMM"),
@ -2022,6 +2062,10 @@ private:
INST("0100110000101---", Id::SHR_C, Type::Shift, "SHR_C"),
INST("0101110000101---", Id::SHR_R, Type::Shift, "SHR_R"),
INST("0011100-00101---", Id::SHR_IMM, Type::Shift, "SHR_IMM"),
INST("0101110011111---", Id::SHF_RIGHT_R, Type::Shift, "SHF_RIGHT_R"),
INST("0011100-11111---", Id::SHF_RIGHT_IMM, Type::Shift, "SHF_RIGHT_IMM"),
INST("0101101111111---", Id::SHF_LEFT_R, Type::Shift, "SHF_LEFT_R"),
INST("0011011-11111---", Id::SHF_LEFT_IMM, Type::Shift, "SHF_LEFT_IMM"),
INST("0100110011100---", Id::I2I_C, Type::Conversion, "I2I_C"),
INST("0101110011100---", Id::I2I_R, Type::Conversion, "I2I_R"),
INST("0011101-11100---", Id::I2I_IMM, Type::Conversion, "I2I_IMM"),

51
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -49,8 +49,9 @@ class ExprDecompiler;
enum class Type { Void, Bool, Bool2, Float, Int, Uint, HalfFloat };
struct TextureAoffi {};
struct TextureDerivates {};
using TextureArgument = std::pair<Type, Node>;
using TextureIR = std::variant<TextureAoffi, TextureArgument>;
using TextureIR = std::variant<TextureAoffi, TextureDerivates, TextureArgument>;
constexpr u32 MAX_CONSTBUFFER_ELEMENTS =
static_cast<u32>(Maxwell::MaxConstBufferSize) / (4 * sizeof(float));
@ -1112,6 +1113,8 @@ private:
expr += GenerateTextureArgument(*argument);
} else if (std::holds_alternative<TextureAoffi>(variant)) {
expr += GenerateTextureAoffi(meta->aoffi);
} else if (std::holds_alternative<TextureDerivates>(variant)) {
expr += GenerateTextureDerivates(meta->derivates);
} else {
UNREACHABLE();
}
@ -1181,6 +1184,36 @@ private:
return expr;
}
std::string GenerateTextureDerivates(const std::vector<Node>& derivates) {
if (derivates.empty()) {
return {};
}
constexpr std::array coord_constructors = {"float", "vec2", "vec3"};
std::string expr = ", ";
const std::size_t components = derivates.size() / 2;
std::string dx = coord_constructors.at(components - 1);
std::string dy = coord_constructors.at(components - 1);
dx += '(';
dy += '(';
for (std::size_t index = 0; index < components; ++index) {
const auto operand_x{derivates.at(index * 2)};
const auto operand_y{derivates.at(index * 2 + 1)};
dx += Visit(operand_x).AsFloat();
dy += Visit(operand_y).AsFloat();
if (index + 1 < components) {
dx += ", ";
dy += ", ";
}
}
dx += ')';
dy += ')';
expr += dx + ", " + dy;
return expr;
}
std::string BuildIntegerCoordinates(Operation operation) {
constexpr std::array constructors{"int(", "ivec2(", "ivec3(", "ivec4("};
const std::size_t coords_count{operation.GetOperandsCount()};
@ -1450,6 +1483,11 @@ private:
return GenerateUnary(operation, "bitCount", type, type);
}
template <Type type>
Expression BitMSB(Operation operation) {
return GenerateUnary(operation, "findMSB", type, type);
}
Expression HNegate(Operation operation) {
const auto GetNegate = [&](std::size_t index) {
return VisitOperand(operation, index).AsBool() + " ? -1 : 1";
@ -1738,6 +1776,14 @@ private:
return {std::move(expr), Type::Float};
}
Expression TextureGradient(Operation operation) {
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
ASSERT(meta);
std::string expr = GenerateTexture(operation, "Grad", {TextureDerivates{}, TextureAoffi{}});
return {std::move(expr) + GetSwizzle(meta->element), Type::Float};
}
Expression ImageLoad(Operation operation) {
if (!device.HasImageLoadFormatted()) {
LOG_ERROR(Render_OpenGL,
@ -2003,6 +2049,7 @@ private:
&GLSLDecompiler::BitfieldInsert<Type::Int>,
&GLSLDecompiler::BitfieldExtract<Type::Int>,
&GLSLDecompiler::BitCount<Type::Int>,
&GLSLDecompiler::BitMSB<Type::Int>,
&GLSLDecompiler::Add<Type::Uint>,
&GLSLDecompiler::Mul<Type::Uint>,
@ -2021,6 +2068,7 @@ private:
&GLSLDecompiler::BitfieldInsert<Type::Uint>,
&GLSLDecompiler::BitfieldExtract<Type::Uint>,
&GLSLDecompiler::BitCount<Type::Uint>,
&GLSLDecompiler::BitMSB<Type::Uint>,
&GLSLDecompiler::Add<Type::HalfFloat>,
&GLSLDecompiler::Mul<Type::HalfFloat>,
@ -2084,6 +2132,7 @@ private:
&GLSLDecompiler::TextureQueryDimensions,
&GLSLDecompiler::TextureQueryLod,
&GLSLDecompiler::TexelFetch,
&GLSLDecompiler::TextureGradient,
&GLSLDecompiler::ImageLoad,
&GLSLDecompiler::ImageStore,

8
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
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@ -983,6 +983,11 @@ private:
return {};
}
Id TextureGradient(Operation operation) {
UNIMPLEMENTED();
return {};
}
Id ImageLoad(Operation operation) {
UNIMPLEMENTED();
return {};
@ -1391,6 +1396,7 @@ private:
&SPIRVDecompiler::Quaternary<&Module::OpBitFieldInsert, Type::Int>,
&SPIRVDecompiler::Ternary<&Module::OpBitFieldSExtract, Type::Int>,
&SPIRVDecompiler::Unary<&Module::OpBitCount, Type::Int>,
&SPIRVDecompiler::Unary<&Module::OpFindSMsb, Type::Int>,
&SPIRVDecompiler::Binary<&Module::OpIAdd, Type::Uint>,
&SPIRVDecompiler::Binary<&Module::OpIMul, Type::Uint>,
@ -1409,6 +1415,7 @@ private:
&SPIRVDecompiler::Quaternary<&Module::OpBitFieldInsert, Type::Uint>,
&SPIRVDecompiler::Ternary<&Module::OpBitFieldUExtract, Type::Uint>,
&SPIRVDecompiler::Unary<&Module::OpBitCount, Type::Uint>,
&SPIRVDecompiler::Unary<&Module::OpFindUMsb, Type::Uint>,
&SPIRVDecompiler::Binary<&Module::OpFAdd, Type::HalfFloat>,
&SPIRVDecompiler::Binary<&Module::OpFMul, Type::HalfFloat>,
@ -1473,6 +1480,7 @@ private:
&SPIRVDecompiler::TextureQueryDimensions,
&SPIRVDecompiler::TextureQueryLod,
&SPIRVDecompiler::TexelFetch,
&SPIRVDecompiler::TextureGradient,
&SPIRVDecompiler::ImageLoad,
&SPIRVDecompiler::ImageStore,

19
src/video_core/shader/decode/arithmetic_integer.cpp
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@ -130,6 +130,25 @@ u32 ShaderIR::DecodeArithmeticInteger(NodeBlock& bb, u32 pc) {
SetRegister(bb, instr.gpr0, value);
break;
}
case OpCode::Id::FLO_R:
case OpCode::Id::FLO_C:
case OpCode::Id::FLO_IMM: {
Node value;
if (instr.flo.invert) {
op_b = Operation(OperationCode::IBitwiseNot, NO_PRECISE, std::move(op_b));
}
if (instr.flo.is_signed) {
value = Operation(OperationCode::IBitMSB, NO_PRECISE, std::move(op_b));
} else {
value = Operation(OperationCode::UBitMSB, NO_PRECISE, std::move(op_b));
}
if (instr.flo.sh) {
value =
Operation(OperationCode::UBitwiseXor, NO_PRECISE, std::move(value), Immediate(31));
}
SetRegister(bb, instr.gpr0, std::move(value));
break;
}
case OpCode::Id::SEL_C:
case OpCode::Id::SEL_R:
case OpCode::Id::SEL_IMM: {

53
src/video_core/shader/decode/texture.cpp
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@ -134,13 +134,52 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{sampler, {}, {}, {}, {}, {}, component, element};
MetaTexture meta{sampler, {}, {}, {}, {}, {}, {}, component, element};
values[element] = Operation(OperationCode::TextureGather, meta, std::move(coords_copy));
}
WriteTexsInstructionFloat(bb, instr, values, true);
break;
}
case OpCode::Id::TXD_B:
is_bindless = true;
[[fallthrough]];
case OpCode::Id::TXD: {
UNIMPLEMENTED_IF_MSG(instr.txd.UsesMiscMode(TextureMiscMode::AOFFI),
"AOFFI is not implemented");
UNIMPLEMENTED_IF_MSG(instr.txd.is_array != 0, "TXD Array is not implemented");
u64 base_reg = instr.gpr8.Value();
const auto derivate_reg = instr.gpr20.Value();
const auto texture_type = instr.txd.texture_type.Value();
const auto coord_count = GetCoordCount(texture_type);
const auto& sampler = is_bindless
? GetBindlessSampler(base_reg, {{texture_type, false, false}})
: GetSampler(instr.sampler, {{texture_type, false, false}});
if (is_bindless) {
base_reg++;
}
std::vector<Node> coords;
std::vector<Node> derivates;
for (std::size_t i = 0; i < coord_count; ++i) {
coords.push_back(GetRegister(base_reg + i));
const std::size_t derivate = i * 2;
derivates.push_back(GetRegister(derivate_reg + derivate));
derivates.push_back(GetRegister(derivate_reg + derivate + 1));
}
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
MetaTexture meta{sampler, {}, {}, {}, derivates, {}, {}, {}, element};
values[element] = Operation(OperationCode::TextureGradient, std::move(meta), coords);
}
WriteTexInstructionFloat(bb, instr, values);
break;
}
case OpCode::Id::TXQ_B:
is_bindless = true;
[[fallthrough]];
@ -158,7 +197,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
if (!instr.txq.IsComponentEnabled(element)) {
continue;
}
MetaTexture meta{sampler, {}, {}, {}, {}, {}, {}, element};
MetaTexture meta{sampler, {}, {}, {}, {}, {}, {}, {}, element};
const Node value =
Operation(OperationCode::TextureQueryDimensions, meta,
GetRegister(instr.gpr8.Value() + (is_bindless ? 1 : 0)));
@ -212,7 +251,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
continue;
}
auto params = coords;
MetaTexture meta{sampler, {}, {}, {}, {}, {}, {}, element};
MetaTexture meta{sampler, {}, {}, {}, {}, {}, {}, {}, element};
const Node value = Operation(OperationCode::TextureQueryLod, meta, std::move(params));
SetTemporary(bb, indexer++, value);
}
@ -442,7 +481,7 @@ Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto copy_coords = coords;
MetaTexture meta{sampler, array, depth_compare, aoffi, bias, lod, {}, element};
MetaTexture meta{sampler, array, depth_compare, aoffi, {}, bias, lod, {}, element};
values[element] = Operation(read_method, meta, std::move(copy_coords));
}
@ -574,7 +613,7 @@ Node4 ShaderIR::GetTld4Code(Instruction instr, TextureType texture_type, bool de
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{sampler, GetRegister(array_register), dc, aoffi, {}, {}, component,
MetaTexture meta{sampler, GetRegister(array_register), dc, aoffi, {}, {}, {}, component,
element};
values[element] = Operation(OperationCode::TextureGather, meta, std::move(coords_copy));
}
@ -608,7 +647,7 @@ Node4 ShaderIR::GetTldCode(Tegra::Shader::Instruction instr) {
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{sampler, array_register, {}, {}, {}, lod, {}, element};
MetaTexture meta{sampler, array_register, {}, {}, {}, {}, lod, {}, element};
values[element] = Operation(OperationCode::TexelFetch, meta, std::move(coords_copy));
}
@ -653,7 +692,7 @@ Node4 ShaderIR::GetTldsCode(Instruction instr, TextureType texture_type, bool is
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{sampler, array, {}, {}, {}, lod, {}, element};
MetaTexture meta{sampler, array, {}, {}, {}, {}, lod, {}, element};
values[element] = Operation(OperationCode::TexelFetch, meta, std::move(coords_copy));
}
return values;

4
src/video_core/shader/node.h
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@ -68,6 +68,7 @@ enum class OperationCode {
IBitfieldInsert, /// (MetaArithmetic, int base, int insert, int offset, int bits) -> int
IBitfieldExtract, /// (MetaArithmetic, int value, int offset, int offset) -> int
IBitCount, /// (MetaArithmetic, int) -> int
IBitMSB, /// (MetaArithmetic, int) -> int
UAdd, /// (MetaArithmetic, uint a, uint b) -> uint
UMul, /// (MetaArithmetic, uint a, uint b) -> uint
@ -86,6 +87,7 @@ enum class OperationCode {
UBitfieldInsert, /// (MetaArithmetic, uint base, uint insert, int offset, int bits) -> uint
UBitfieldExtract, /// (MetaArithmetic, uint value, int offset, int offset) -> uint
UBitCount, /// (MetaArithmetic, uint) -> uint
UBitMSB, /// (MetaArithmetic, uint) -> uint
HAdd, /// (MetaArithmetic, f16vec2 a, f16vec2 b) -> f16vec2
HMul, /// (MetaArithmetic, f16vec2 a, f16vec2 b) -> f16vec2
@ -149,6 +151,7 @@ enum class OperationCode {
TextureQueryDimensions, /// (MetaTexture, float a) -> float4
TextureQueryLod, /// (MetaTexture, float[N] coords) -> float4
TexelFetch, /// (MetaTexture, int[N], int) -> float4
TextureGradient, /// (MetaTexture, float[N] coords, float[N*2] derivates) -> float4
ImageLoad, /// (MetaImage, int[N] coords) -> void
ImageStore, /// (MetaImage, int[N] coords) -> void
@ -367,6 +370,7 @@ struct MetaTexture {
Node array;
Node depth_compare;
std::vector<Node> aoffi;
std::vector<Node> derivates;
Node bias;
Node lod;
Node component{};