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Merge pull request #2446 from ReinUsesLisp/tid

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shader: Implement S2R Tid{XYZ} and CtaId{XYZ}
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bunnei 2019-05-29 12:21:17 -04:00 committed by GitHub
commit e3608578e4
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 76 additions and 22 deletions
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30
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -31,6 +31,8 @@ using Tegra::Shader::IpaInterpMode;
using Tegra::Shader::IpaMode;
using Tegra::Shader::IpaSampleMode;
using Tegra::Shader::Register;
using namespace std::string_literals;
using namespace VideoCommon::Shader;
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
@ -93,11 +95,9 @@ private:
};
/// Generates code to use for a swizzle operation.
std::string GetSwizzle(u32 elem) {
ASSERT(elem <= 3);
std::string swizzle = ".";
swizzle += "xyzw"[elem];
return swizzle;
constexpr const char* GetSwizzle(u32 element) {
constexpr std::array<const char*, 4> swizzle = {".x", ".y", ".z", ".w"};
return swizzle.at(element);
}
/// Translate topology
@ -636,7 +636,7 @@ private:
if (stage != ShaderStage::Fragment) {
return GeometryPass("position") + GetSwizzle(element);
} else {
return element == 3 ? "1.0f" : "gl_FragCoord" + GetSwizzle(element);
return element == 3 ? "1.0f" : ("gl_FragCoord"s + GetSwizzle(element));
}
case Attribute::Index::PointCoord:
switch (element) {
@ -921,7 +921,7 @@ private:
target = [&]() -> std::string {
switch (const auto attribute = abuf->GetIndex(); abuf->GetIndex()) {
case Attribute::Index::Position:
return "position" + GetSwizzle(abuf->GetElement());
return "position"s + GetSwizzle(abuf->GetElement());
case Attribute::Index::PointSize:
return "gl_PointSize";
case Attribute::Index::ClipDistances0123:
@ -1526,6 +1526,16 @@ private:
return "uintBitsToFloat(config_pack[2])";
}
template <u32 element>
std::string LocalInvocationId(Operation) {
return "utof(gl_LocalInvocationID"s + GetSwizzle(element) + ')';
}
template <u32 element>
std::string WorkGroupId(Operation) {
return "utof(gl_WorkGroupID"s + GetSwizzle(element) + ')';
}
static constexpr OperationDecompilersArray operation_decompilers = {
&GLSLDecompiler::Assign,
@ -1665,6 +1675,12 @@ private:
&GLSLDecompiler::EndPrimitive,
&GLSLDecompiler::YNegate,
&GLSLDecompiler::LocalInvocationId<0>,
&GLSLDecompiler::LocalInvocationId<1>,
&GLSLDecompiler::LocalInvocationId<2>,
&GLSLDecompiler::WorkGroupId<0>,
&GLSLDecompiler::WorkGroupId<1>,
&GLSLDecompiler::WorkGroupId<2>,
};
std::string GetRegister(u32 index) const {

18
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
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@ -1035,6 +1035,18 @@ private:
return {};
}
template <u32 element>
Id LocalInvocationId(Operation) {
UNIMPLEMENTED();
return {};
}
template <u32 element>
Id WorkGroupId(Operation) {
UNIMPLEMENTED();
return {};
}
Id DeclareBuiltIn(spv::BuiltIn builtin, spv::StorageClass storage, Id type,
const std::string& name) {
const Id id = OpVariable(type, storage);
@ -1291,6 +1303,12 @@ private:
&SPIRVDecompiler::EndPrimitive,
&SPIRVDecompiler::YNegate,
&SPIRVDecompiler::LocalInvocationId<0>,
&SPIRVDecompiler::LocalInvocationId<1>,
&SPIRVDecompiler::LocalInvocationId<2>,
&SPIRVDecompiler::WorkGroupId<0>,
&SPIRVDecompiler::WorkGroupId<1>,
&SPIRVDecompiler::WorkGroupId<2>,
};
const ShaderIR& ir;

34
src/video_core/shader/decode/other.cpp
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@ -14,6 +14,7 @@ using Tegra::Shader::ConditionCode;
using Tegra::Shader::Instruction;
using Tegra::Shader::OpCode;
using Tegra::Shader::Register;
using Tegra::Shader::SystemVariable;
u32 ShaderIR::DecodeOther(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
@ -59,20 +60,33 @@ u32 ShaderIR::DecodeOther(NodeBlock& bb, u32 pc) {
break;
}
case OpCode::Id::MOV_SYS: {
const Node value = [&]() {
switch (instr.sys20) {
case Tegra::Shader::SystemVariable::InvocationInfo: {
case SystemVariable::Ydirection:
return Operation(OperationCode::YNegate);
case SystemVariable::InvocationInfo:
LOG_WARNING(HW_GPU, "MOV_SYS instruction with InvocationInfo is incomplete");
SetRegister(bb, instr.gpr0, Immediate(0u));
break;
}
case Tegra::Shader::SystemVariable::Ydirection: {
// Config pack's third value is Y_NEGATE's state.
SetRegister(bb, instr.gpr0, Operation(OperationCode::YNegate));
break;
}
return Immediate(0u);
case SystemVariable::TidX:
return Operation(OperationCode::LocalInvocationIdX);
case SystemVariable::TidY:
return Operation(OperationCode::LocalInvocationIdY);
case SystemVariable::TidZ:
return Operation(OperationCode::LocalInvocationIdZ);
case SystemVariable::CtaIdX:
return Operation(OperationCode::WorkGroupIdX);
case SystemVariable::CtaIdY:
return Operation(OperationCode::WorkGroupIdY);
case SystemVariable::CtaIdZ:
return Operation(OperationCode::WorkGroupIdZ);
default:
UNIMPLEMENTED_MSG("Unhandled system move: {}", static_cast<u32>(instr.sys20.Value()));
UNIMPLEMENTED_MSG("Unhandled system move: {}",
static_cast<u32>(instr.sys20.Value()));
return Immediate(0u);
}
}();
SetRegister(bb, instr.gpr0, value);
break;
}
case OpCode::Id::BRA: {

6
src/video_core/shader/shader_ir.h
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@ -182,6 +182,12 @@ enum class OperationCode {
EndPrimitive, /// () -> void
YNegate, /// () -> float
LocalInvocationIdX, /// () -> uint
LocalInvocationIdY, /// () -> uint
LocalInvocationIdZ, /// () -> uint
WorkGroupIdX, /// () -> uint
WorkGroupIdY, /// () -> uint
WorkGroupIdZ, /// () -> uint
Amount,
};