mirror of
https://github.com/baldurk/renderdoc.git
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baldurk
1726 lines
52 KiB
C++
1726 lines
52 KiB
C++
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Baldur Karlsson
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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#include "spirv_debug.h"
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#include "common/formatting.h"
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#include "spirv_op_helpers.h"
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#include "spirv_reflect.h"
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static uint32_t VarByteSize(const ShaderVariable &var)
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{
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return VarTypeByteSize(var.type) * RDCMAX(1U, (uint32_t)var.rows) *
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RDCMAX(1U, (uint32_t)var.columns);
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}
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namespace rdcspv
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{
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void AssignValue(ShaderVariable &dst, const ShaderVariable &src)
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{
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dst.value = src.value;
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RDCASSERTEQUAL(dst.members.size(), src.members.size());
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for(size_t i = 0; i < src.members.size(); i++)
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AssignValue(dst.members[i], src.members[i]);
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}
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Debugger::Debugger()
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{
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}
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Debugger::~Debugger()
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{
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SAFE_DELETE(apiWrapper);
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}
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void Debugger::Parse(const rdcarray<uint32_t> &spirvWords)
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{
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Processor::Parse(spirvWords);
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}
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Iter Debugger::GetIterForInstruction(uint32_t inst)
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{
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return Iter(m_SPIRV, instructionOffsets[inst]);
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}
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uint32_t Debugger::GetInstructionForIter(Iter it)
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{
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return instructionOffsets.indexOf(it.offs());
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}
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uint32_t Debugger::GetInstructionForFunction(Id id)
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{
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return instructionOffsets.indexOf(functions[id].begin);
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}
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uint32_t Debugger::GetInstructionForLabel(Id id)
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{
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uint32_t ret = labelInstruction[id];
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RDCASSERT(ret);
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return ret;
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}
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const rdcspv::DataType &Debugger::GetType(Id typeId)
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{
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return dataTypes[typeId];
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}
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void Debugger::MakeSignatureNames(const rdcarray<SPIRVInterfaceAccess> &sigList,
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rdcarray<rdcstr> &sigNames)
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{
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for(const SPIRVInterfaceAccess &sig : sigList)
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{
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rdcstr name = GetRawName(sig.ID);
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const DataType *type = &dataTypes[idTypes[sig.ID]];
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RDCASSERT(type->type == DataType::PointerType);
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type = &dataTypes[type->InnerType()];
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for(uint32_t chain : sig.accessChain)
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{
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if(type->type == DataType::ArrayType)
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{
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name += StringFormat::Fmt("[%u]", chain);
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type = &dataTypes[type->InnerType()];
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}
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else if(type->type == DataType::StructType)
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{
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name += StringFormat::Fmt("._child%u", chain);
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type = &dataTypes[type->children[chain].type];
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}
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else
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{
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RDCERR("Got access chain with non-aggregate type in interface.");
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break;
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}
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}
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sigNames.push_back(name);
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}
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}
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ShaderDebugTrace *Debugger::BeginDebug(DebugAPIWrapper *apiWrapper, const ShaderStage stage,
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const rdcstr &entryPoint,
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const rdcarray<SpecConstant> &specInfo,
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const std::map<size_t, uint32_t> &instructionLines,
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const SPIRVPatchData &patchData, uint32_t activeIndex)
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{
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Id entryId = entryLookup[entryPoint];
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if(entryId == Id())
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{
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RDCERR("Invalid entry point '%s'", entryPoint.c_str());
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return new ShaderDebugTrace;
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}
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for(Capability c : capabilities)
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{
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bool supported = false;
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switch(c)
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{
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case Capability::Matrix:
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case Capability::Shader:
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// we "support" geometry/tessellation in case the module contains other entry points, but
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// these can't be debugged right now.
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case Capability::Geometry:
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case Capability::Tessellation:
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case Capability::TessellationPointSize:
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case Capability::GeometryPointSize:
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case Capability::UniformBufferArrayDynamicIndexing:
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case Capability::SampledImageArrayDynamicIndexing:
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case Capability::StorageBufferArrayDynamicIndexing:
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case Capability::StorageImageArrayDynamicIndexing:
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case Capability::ClipDistance:
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case Capability::CullDistance:
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case Capability::ImageCubeArray:
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case Capability::SampleRateShading:
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case Capability::ImageRect:
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case Capability::SampledRect:
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case Capability::MinLod:
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case Capability::Sampled1D:
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case Capability::Image1D:
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case Capability::SampledCubeArray:
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case Capability::SampledBuffer:
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case Capability::ImageBuffer:
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case Capability::ImageMSArray:
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case Capability::StorageImageExtendedFormats:
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case Capability::DerivativeControl:
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case Capability::TransformFeedback:
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case Capability::GeometryStreams:
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case Capability::StorageImageReadWithoutFormat:
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case Capability::StorageImageWriteWithoutFormat:
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case Capability::MultiViewport:
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case Capability::ShaderLayer:
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case Capability::ShaderViewportIndex:
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case Capability::DrawParameters:
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case Capability::DeviceGroup:
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case Capability::MultiView:
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case Capability::SampleMaskPostDepthCoverage:
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case Capability::StencilExportEXT:
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case Capability::ShaderViewportIndexLayerEXT:
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case Capability::FragmentFullyCoveredEXT:
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case Capability::FragmentDensityEXT:
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case Capability::ShaderNonUniform:
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case Capability::RuntimeDescriptorArray:
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case Capability::InputAttachmentArrayDynamicIndexing:
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case Capability::UniformTexelBufferArrayDynamicIndexing:
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case Capability::StorageTexelBufferArrayDynamicIndexing:
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case Capability::UniformBufferArrayNonUniformIndexing:
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case Capability::SampledImageArrayNonUniformIndexing:
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case Capability::StorageBufferArrayNonUniformIndexing:
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case Capability::StorageImageArrayNonUniformIndexing:
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case Capability::InputAttachmentArrayNonUniformIndexing:
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case Capability::UniformTexelBufferArrayNonUniformIndexing:
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case Capability::StorageTexelBufferArrayNonUniformIndexing:
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case Capability::VulkanMemoryModel:
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case Capability::VulkanMemoryModelDeviceScope:
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{
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supported = true;
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break;
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}
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// we plan to support these but needs additional testing/proving
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// image queries
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case Capability::ImageQuery:
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// image gather operations
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case Capability::ImageGatherExtended:
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// image storage
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case Capability::StorageImageMultisample:
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// demote to helper
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case Capability::DemoteToHelperInvocationEXT:
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// all these are related to non-32-bit types
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case Capability::Float16Buffer:
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case Capability::Float16:
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case Capability::Float64:
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case Capability::Int64:
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case Capability::Int16:
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case Capability::Int8:
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case Capability::StorageBuffer16BitAccess:
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case Capability::UniformAndStorageBuffer16BitAccess:
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case Capability::StoragePushConstant16:
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case Capability::StorageInputOutput16:
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case Capability::StorageBuffer8BitAccess:
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case Capability::UniformAndStorageBuffer8BitAccess:
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case Capability::StoragePushConstant8:
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// atomics
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case Capability::Int64Atomics:
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case Capability::AtomicStorage:
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case Capability::AtomicStorageOps:
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// physical pointers
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case Capability::PhysicalStorageBufferAddresses:
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// MSAA custom interpolation
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case Capability::InterpolationFunction:
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// variable pointers
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case Capability::VariablePointersStorageBuffer:
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case Capability::VariablePointers:
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// float controls
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case Capability::DenormPreserve:
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case Capability::DenormFlushToZero:
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case Capability::SignedZeroInfNanPreserve:
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case Capability::RoundingModeRTE:
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case Capability::RoundingModeRTZ:
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// shader clock
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case Capability::ShaderClockKHR:
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// group instructions
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case Capability::Groups:
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case Capability::GroupNonUniform:
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case Capability::GroupNonUniformVote:
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case Capability::GroupNonUniformArithmetic:
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case Capability::GroupNonUniformBallot:
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case Capability::GroupNonUniformShuffle:
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case Capability::GroupNonUniformShuffleRelative:
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case Capability::GroupNonUniformClustered:
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case Capability::GroupNonUniformQuad:
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case Capability::SubgroupBallotKHR:
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case Capability::SubgroupVoteKHR:
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{
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supported = false;
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break;
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}
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// input attachments
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case Capability::InputAttachment:
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// sparse operations
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case Capability::SparseResidency:
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// fragment interlock
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case Capability::FragmentShaderSampleInterlockEXT:
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case Capability::FragmentShaderShadingRateInterlockEXT:
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case Capability::FragmentShaderPixelInterlockEXT:
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// no plans to support these - mostly Kernel/OpenCL related or vendor extensions
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case Capability::Addresses:
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case Capability::Linkage:
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case Capability::Kernel:
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case Capability::Vector16:
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case Capability::ImageBasic:
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case Capability::ImageReadWrite:
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case Capability::ImageMipmap:
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case Capability::Pipes:
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case Capability::DeviceEnqueue:
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case Capability::LiteralSampler:
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case Capability::GenericPointer:
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case Capability::SubgroupDispatch:
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case Capability::NamedBarrier:
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case Capability::PipeStorage:
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case Capability::Float16ImageAMD:
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case Capability::ImageGatherBiasLodAMD:
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case Capability::FragmentMaskAMD:
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case Capability::ImageReadWriteLodAMD:
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case Capability::SampleMaskOverrideCoverageNV:
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case Capability::GeometryShaderPassthroughNV:
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case Capability::ShaderViewportMaskNV:
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case Capability::ShaderStereoViewNV:
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case Capability::PerViewAttributesNV:
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case Capability::MeshShadingNV:
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case Capability::FragmentBarycentricNV:
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case Capability::ImageFootprintNV:
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case Capability::ComputeDerivativeGroupQuadsNV:
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case Capability::GroupNonUniformPartitionedNV:
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case Capability::RayTracingNV:
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case Capability::ComputeDerivativeGroupLinearNV:
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case Capability::CooperativeMatrixNV:
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case Capability::ShaderSMBuiltinsNV:
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case Capability::SubgroupShuffleINTEL:
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case Capability::SubgroupBufferBlockIOINTEL:
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case Capability::SubgroupImageBlockIOINTEL:
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case Capability::SubgroupImageMediaBlockIOINTEL:
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case Capability::IntegerFunctions2INTEL:
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case Capability::SubgroupAvcMotionEstimationINTEL:
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case Capability::SubgroupAvcMotionEstimationIntraINTEL:
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case Capability::SubgroupAvcMotionEstimationChromaINTEL:
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case Capability::Max:
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case Capability::Invalid:
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{
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supported = false;
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break;
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}
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}
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if(!supported)
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{
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RDCERR("Unsupported capability '%s'", ToStr(c).c_str());
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return new ShaderDebugTrace;
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}
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}
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for(auto it = extSets.begin(); it != extSets.end(); it++)
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{
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Id id = it->first;
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const rdcstr &setname = it->second;
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if(setname == "GLSL.std.450")
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{
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ExtInstDispatcher extinst;
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extinst.name = setname;
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ConfigureGLSLStd450(extinst);
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global.extInsts[id] = extinst;
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}
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else if(setname.beginsWith("NonSemantic."))
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{
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ExtInstDispatcher extinst;
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extinst.name = setname;
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extinst.nonsemantic = true;
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global.extInsts[id] = extinst;
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}
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else
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{
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RDCERR("Unsupported extended instruction set: %s", setname.c_str());
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return new ShaderDebugTrace;
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}
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}
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for(const rdcstr &e : extensions)
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{
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if(e == "SPV_GOOGLE_decorate_string" || e == "SPV_GOOGLE_hlsl_functionality1")
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{
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// supported extensions
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}
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else
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{
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RDCERR("Unsupported extension '%s'", e.c_str());
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return new ShaderDebugTrace;
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}
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}
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ShaderDebugTrace *ret = new ShaderDebugTrace;
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ret->debugger = this;
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ret->stage = stage;
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this->activeLaneIndex = activeIndex;
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this->stage = stage;
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this->apiWrapper = apiWrapper;
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uint32_t workgroupSize = stage == ShaderStage::Pixel ? 4 : 1;
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for(uint32_t i = 0; i < workgroupSize; i++)
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workgroup.push_back(ThreadState(i, *this, global));
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ThreadState &active = GetActiveLane();
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active.nextInstruction = instructionOffsets.indexOf(functions[entryId].begin);
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active.ids.resize(idOffsets.size());
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// evaluate all constants
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for(auto it = constants.begin(); it != constants.end(); it++)
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active.ids[it->first] = EvaluateConstant(it->first, specInfo);
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rdcarray<rdcstr> inputSigNames, outputSigNames;
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MakeSignatureNames(patchData.inputs, inputSigNames);
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MakeSignatureNames(patchData.outputs, outputSigNames);
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rdcarray<Id> inputIDs, outputIDs, cbufferIDs, readOnlyIDs, readWriteIDs, samplerIDs;
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// allocate storage for globals with opaque storage classes, and prepare to set up pointers to
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// them for the global variables themselves
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for(const Variable &v : globals)
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{
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if(v.storage == StorageClass::Input || v.storage == StorageClass::Output)
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{
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const bool isInput = (v.storage == StorageClass::Input);
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ShaderVariable var;
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var.name = GetRawName(v.id);
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rdcstr sourceName = GetHumanName(v.id);
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// if we don't have a good human name, generate a better one using the interface information
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// we have
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if(sourceName == var.name)
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{
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if(decorations[v.id].flags & Decorations::HasBuiltIn)
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sourceName = StringFormat::Fmt("_%s", ToStr(decorations[v.id].builtIn).c_str());
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else if(decorations[v.id].flags & Decorations::HasLocation)
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sourceName =
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StringFormat::Fmt("_%s%u", isInput ? "input" : "output", decorations[v.id].location);
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}
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size_t oldSize = globalSourceVars.size();
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const DataType &type = dataTypes[v.type];
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// global variables should all be pointers into opaque storage
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RDCASSERT(type.type == DataType::PointerType);
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// fill the interface variable
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AllocateVariable(decorations[v.id], decorations[v.id],
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isInput ? DebugVariableType::Input : DebugVariableType::Variable, sourceName,
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decorations[v.id].location, dataTypes[type.InnerType()], var);
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for(size_t i = oldSize; i < globalSourceVars.size(); i++)
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globalSourceVars[i].signatureIndex =
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(isInput ? inputSigNames : outputSigNames).indexOf(globalSourceVars[i].variables[0].name);
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if(isInput)
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{
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// create the opaque storage
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active.inputs.push_back(var);
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// then make sure we know which ID to set up for the pointer
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inputIDs.push_back(v.id);
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}
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else
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{
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active.outputs.push_back(var);
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outputIDs.push_back(v.id);
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}
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}
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// pick up uniform globals, which could be cbuffers, and push constants
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else if((v.storage == StorageClass::Uniform || v.storage == StorageClass::PushConstant) &&
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(decorations[v.id].flags & Decorations::BufferBlock) == 0)
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{
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ShaderVariable var;
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var.name = GetRawName(v.id);
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rdcstr sourceName = GetHumanName(v.id);
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const DataType &type = dataTypes[v.type];
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// global variables should all be pointers into opaque storage
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RDCASSERT(type.type == DataType::PointerType);
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const DataType &innertype = dataTypes[type.InnerType()];
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if(innertype.type == DataType::ArrayType)
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{
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RDCERR("uniform Arrays not supported yet");
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}
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else if(innertype.type == DataType::StructType)
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{
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// if we don't have a good human name, generate a better one using the interface information
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// we have
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if(sourceName == var.name)
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{
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if(v.storage == StorageClass::PushConstant)
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sourceName = "_pushconsts";
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else
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sourceName = StringFormat::Fmt("_cbuffer_set%u_bind%u", decorations[v.id].set,
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decorations[v.id].binding);
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}
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Decorations d = decorations[v.id];
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if(v.storage == StorageClass::PushConstant)
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{
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d.set = PushConstantBindSet;
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d.flags = Decorations::Flags(d.flags | Decorations::HasDescriptorSet);
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}
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uint32_t offset = 0;
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AllocateVariable(d, d, DebugVariableType::Constant, sourceName, 0, innertype, var);
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global.constantBlocks.push_back(var);
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cbufferIDs.push_back(v.id);
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SourceVariableMapping sourceVar;
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sourceVar.name = sourceName;
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sourceVar.type = VarType::Unknown;
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sourceVar.rows = 0;
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sourceVar.columns = 0;
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sourceVar.offset = 0;
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sourceVar.variables.push_back(DebugVariableReference(DebugVariableType::Constant, var.name));
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globalSourceVars.push_back(sourceVar);
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}
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else
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{
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RDCERR("Unhandled type of uniform: %u", innertype.type);
|
|
}
|
|
}
|
|
else if(v.storage == StorageClass::UniformConstant)
|
|
{
|
|
// only images/samplers are allowed to be in UniformConstant
|
|
ShaderVariable var;
|
|
var.rows = 1;
|
|
var.columns = 1;
|
|
var.name = GetRawName(v.id);
|
|
|
|
rdcstr sourceName = GetHumanName(v.id);
|
|
|
|
const DataType &type = dataTypes[v.type];
|
|
|
|
// global variables should all be pointers into opaque storage
|
|
RDCASSERT(type.type == DataType::PointerType);
|
|
|
|
const DataType &innertype = dataTypes[type.InnerType()];
|
|
|
|
// if we don't have a good human name, generate a better one using the interface information
|
|
// we have
|
|
if(sourceName == var.name)
|
|
{
|
|
rdcstr innerName;
|
|
if(innertype.type == DataType::SamplerType)
|
|
innerName = "sampler";
|
|
else if(innertype.type == DataType::SampledImageType)
|
|
innerName = "sampledImage";
|
|
else if(innertype.type == DataType::ImageType)
|
|
innerName = "image";
|
|
sourceName = StringFormat::Fmt("_%s_set%u_bind%u", innerName.c_str(), decorations[v.id].set,
|
|
decorations[v.id].binding);
|
|
}
|
|
|
|
DebugVariableType debugType = DebugVariableType::ReadOnlyResource;
|
|
|
|
uint32_t set = 0, bind = 0;
|
|
if(decorations[v.id].flags & Decorations::HasDescriptorSet)
|
|
set = decorations[v.id].set;
|
|
if(decorations[v.id].flags & Decorations::HasBinding)
|
|
bind = decorations[v.id].binding;
|
|
|
|
// TODO handle arrays
|
|
var.SetBinding((int32_t)set, (int32_t)bind, 0U);
|
|
|
|
if(innertype.type == DataType::SamplerType)
|
|
{
|
|
var.type = VarType::Sampler;
|
|
debugType = DebugVariableType::Sampler;
|
|
|
|
global.samplers.push_back(var);
|
|
samplerIDs.push_back(v.id);
|
|
}
|
|
else if(innertype.type == DataType::SampledImageType || innertype.type == DataType::ImageType)
|
|
{
|
|
var.type = VarType::ReadOnlyResource;
|
|
debugType = DebugVariableType::ReadOnlyResource;
|
|
|
|
// store the texture type here, since the image may be copied around and combined with a
|
|
// sampler, so accessing the original type might be non-trivial at point of access
|
|
uint32_t texType = DebugAPIWrapper::Float_Texture;
|
|
|
|
if(imageTypes[type.InnerType()].dim == Dim::Buffer)
|
|
texType |= DebugAPIWrapper::Buffer_Texture;
|
|
|
|
if(imageTypes[type.InnerType()].retType.type == Op::TypeInt)
|
|
{
|
|
if(imageTypes[type.InnerType()].retType.signedness)
|
|
texType |= DebugAPIWrapper::SInt_Texture;
|
|
else
|
|
texType |= DebugAPIWrapper::UInt_Texture;
|
|
}
|
|
|
|
var.value.uv[TextureTypeVariableSlot] = texType;
|
|
|
|
global.readOnlyResources.push_back(var);
|
|
readOnlyIDs.push_back(v.id);
|
|
}
|
|
else
|
|
{
|
|
RDCERR("Unhandled type of uniform: %u", innertype.type);
|
|
}
|
|
|
|
SourceVariableMapping sourceVar;
|
|
sourceVar.name = sourceName;
|
|
sourceVar.type = var.type;
|
|
sourceVar.rows = 1;
|
|
sourceVar.columns = 1;
|
|
sourceVar.offset = 0;
|
|
sourceVar.variables.push_back(DebugVariableReference(debugType, var.name));
|
|
|
|
globalSourceVars.push_back(sourceVar);
|
|
}
|
|
else
|
|
{
|
|
RDCERR("Unhandled type of global variable: %s", ToStr(v.storage).c_str());
|
|
}
|
|
}
|
|
|
|
std::sort(outputIDs.begin(), outputIDs.end());
|
|
|
|
for(uint32_t i = 0; i < workgroupSize; i++)
|
|
{
|
|
ThreadState &lane = workgroup[i];
|
|
if(i != activeLaneIndex)
|
|
{
|
|
lane.nextInstruction = active.nextInstruction;
|
|
lane.inputs = active.inputs;
|
|
lane.outputs = active.outputs;
|
|
lane.ids = active.ids;
|
|
// mark as inactive/helper lane
|
|
lane.done = true;
|
|
}
|
|
|
|
// now that the globals are allocated and their storage won't move, we can take pointers to them
|
|
for(size_t i = 0; i < lane.inputs.size(); i++)
|
|
lane.ids[inputIDs[i]] = MakePointerVariable(inputIDs[i], &lane.inputs[i]);
|
|
for(size_t i = 0; i < lane.outputs.size(); i++)
|
|
lane.ids[outputIDs[i]] = MakePointerVariable(outputIDs[i], &lane.outputs[i]);
|
|
for(size_t i = 0; i < global.constantBlocks.size(); i++)
|
|
lane.ids[cbufferIDs[i]] = MakePointerVariable(cbufferIDs[i], &global.constantBlocks[i]);
|
|
for(size_t i = 0; i < global.readOnlyResources.size(); i++)
|
|
lane.ids[readOnlyIDs[i]] = MakePointerVariable(readOnlyIDs[i], &global.readOnlyResources[i]);
|
|
for(size_t i = 0; i < global.readWriteResources.size(); i++)
|
|
lane.ids[readWriteIDs[i]] = MakePointerVariable(readWriteIDs[i], &global.readWriteResources[i]);
|
|
for(size_t i = 0; i < global.samplers.size(); i++)
|
|
lane.ids[samplerIDs[i]] = MakePointerVariable(samplerIDs[i], &global.samplers[i]);
|
|
}
|
|
|
|
// only outputs are considered mutable
|
|
liveGlobals.append(outputIDs);
|
|
|
|
for(size_t i = 0; i < globalSourceVars.size();)
|
|
{
|
|
if(!globalSourceVars[i].variables.empty() &&
|
|
(globalSourceVars[i].variables[0].type == DebugVariableType::Input ||
|
|
globalSourceVars[i].variables[0].type == DebugVariableType::ReadOnlyResource ||
|
|
globalSourceVars[i].variables[0].type == DebugVariableType::ReadWriteResource ||
|
|
globalSourceVars[i].variables[0].type == DebugVariableType::Sampler ||
|
|
globalSourceVars[i].variables[0].type == DebugVariableType::Constant))
|
|
{
|
|
ret->sourceVars.push_back(globalSourceVars[i]);
|
|
globalSourceVars.erase(i);
|
|
continue;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
for(size_t o = 0; o < outputIDs.size(); o++)
|
|
{
|
|
rdcstr varName = GetRawName(outputIDs[o]);
|
|
|
|
for(size_t i = 0; i < globalSourceVars.size(); i++)
|
|
{
|
|
if(!globalSourceVars[i].variables.empty() && globalSourceVars[i].variables[0].name == varName)
|
|
{
|
|
ret->sourceVars.push_back(globalSourceVars[i]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ret->lineInfo.resize(instructionOffsets.size());
|
|
for(size_t i = 0; i < instructionOffsets.size(); i++)
|
|
{
|
|
auto it = instructionLines.find(instructionOffsets[i]);
|
|
if(it != instructionLines.end())
|
|
ret->lineInfo[i].disassemblyLine = it->second;
|
|
else
|
|
ret->lineInfo[i].disassemblyLine = 0;
|
|
}
|
|
|
|
ret->constantBlocks = global.constantBlocks;
|
|
ret->readOnlyResources = global.readOnlyResources;
|
|
ret->readWriteResources = global.readWriteResources;
|
|
ret->samplers = global.samplers;
|
|
ret->inputs = active.inputs;
|
|
|
|
if(stage == ShaderStage::Pixel)
|
|
{
|
|
// apply derivatives to generate the correct inputs for the quad neighbours
|
|
for(uint32_t q = 0; q < workgroupSize; q++)
|
|
{
|
|
if(q == activeLaneIndex)
|
|
continue;
|
|
|
|
for(size_t i = 0; i < inputIDs.size(); i++)
|
|
{
|
|
Id id = inputIDs[i];
|
|
|
|
const DataType &type = dataTypes[idTypes[id]];
|
|
|
|
// global variables should all be pointers into opaque storage
|
|
RDCASSERT(type.type == DataType::PointerType);
|
|
|
|
const DataType &innertype = dataTypes[type.InnerType()];
|
|
|
|
ApplyDerivatives(q, decorations[id], decorations[id].location, innertype,
|
|
workgroup[q].inputs[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
rdcarray<ShaderDebugState> Debugger::ContinueDebug()
|
|
{
|
|
ThreadState &active = GetActiveLane();
|
|
|
|
rdcarray<ShaderDebugState> ret;
|
|
|
|
// initialise the first ShaderDebugState if we haven't stepped yet
|
|
if(steps == 0)
|
|
{
|
|
// we should be sitting at the entry point function prologue, step forward into the first block
|
|
// and past any function-local variable declarations
|
|
for(ThreadState &thread : workgroup)
|
|
thread.EnterFunction(NULL, {});
|
|
|
|
ShaderDebugState initial;
|
|
|
|
initial.nextInstruction = active.nextInstruction;
|
|
|
|
for(const Id &v : active.live)
|
|
initial.changes.push_back({ShaderVariable(), EvaluatePointerVariable(active.ids[v])});
|
|
|
|
initial.sourceVars = active.sourceVars;
|
|
|
|
initial.stepIndex = steps;
|
|
|
|
active.FillCallstack(initial);
|
|
|
|
ret.push_back(initial);
|
|
|
|
steps++;
|
|
}
|
|
|
|
// if we've finished, return an empty set to signify that
|
|
if(active.Finished())
|
|
return ret;
|
|
|
|
rdcarray<bool> activeMask;
|
|
|
|
// do 100 in a chunk
|
|
for(int cycleCounter = 0; cycleCounter < 100; cycleCounter++)
|
|
{
|
|
if(active.Finished())
|
|
break;
|
|
|
|
// calculate the current mask of which threads are active
|
|
CalcActiveMask(activeMask);
|
|
|
|
// step all active members of the workgroup
|
|
for(size_t lane = 0; lane < workgroup.size(); lane++)
|
|
{
|
|
ThreadState &thread = workgroup[lane];
|
|
|
|
if(activeMask[lane])
|
|
{
|
|
if(thread.nextInstruction >= instructionOffsets.size())
|
|
{
|
|
if(lane == activeLaneIndex)
|
|
ret.push_back(ShaderDebugState());
|
|
|
|
continue;
|
|
}
|
|
|
|
if(lane == activeLaneIndex)
|
|
{
|
|
ShaderDebugState state;
|
|
|
|
// see if we're retiring any IDs at this state
|
|
for(size_t l = 0; l < thread.live.size();)
|
|
{
|
|
Id id = thread.live[l];
|
|
if(idDeathOffset[id] < instructionOffsets[thread.nextInstruction])
|
|
{
|
|
thread.live.erase(l);
|
|
ShaderVariableChange change;
|
|
change.before = EvaluatePointerVariable(thread.ids[id]);
|
|
state.changes.push_back(change);
|
|
|
|
rdcstr name = GetRawName(id);
|
|
|
|
thread.sourceVars.removeIf([name](const SourceVariableMapping &var) {
|
|
return var.variables[0].name.beginsWith(name);
|
|
});
|
|
|
|
continue;
|
|
}
|
|
|
|
l++;
|
|
}
|
|
|
|
thread.StepNext(&state, workgroup);
|
|
state.stepIndex = steps;
|
|
state.sourceVars = thread.sourceVars;
|
|
thread.FillCallstack(state);
|
|
ret.push_back(state);
|
|
}
|
|
else
|
|
{
|
|
thread.StepNext(NULL, workgroup);
|
|
}
|
|
}
|
|
}
|
|
|
|
steps++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
ShaderVariable Debugger::MakePointerVariable(Id id, const ShaderVariable *v, uint32_t scalar0,
|
|
uint32_t scalar1) const
|
|
{
|
|
ShaderVariable var;
|
|
var.rows = var.columns = 1;
|
|
var.type = VarType::GPUPointer;
|
|
var.name = GetRawName(id);
|
|
// encode the pointer into the first u64v
|
|
var.value.u64v[0] = (uint64_t)(uintptr_t)v;
|
|
|
|
// uv[1] overlaps with u64v[0], so start from [2] storing scalar indices
|
|
var.value.uv[2] = scalar0;
|
|
var.value.uv[3] = scalar1;
|
|
// store the base ID of the allocated storage in [4]
|
|
var.value.uv[4] = id.value();
|
|
return var;
|
|
}
|
|
|
|
ShaderVariable Debugger::MakeCompositePointer(const ShaderVariable &base, Id id,
|
|
rdcarray<uint32_t> &indices)
|
|
{
|
|
const ShaderVariable *leaf = &base;
|
|
|
|
// if the base is a plain value, we just start walking down the chain. If the base is a pointer
|
|
// though, we want to step down the chain in the underlying storage, so dereference first.
|
|
if(base.type == VarType::GPUPointer)
|
|
leaf = (const ShaderVariable *)(uintptr_t)base.value.u64v[0];
|
|
|
|
// first walk any struct member/array indices
|
|
size_t i = 0;
|
|
while(!leaf->members.empty())
|
|
{
|
|
RDCASSERT(i < indices.size(), i, indices.size());
|
|
leaf = &leaf->members[indices[i++]];
|
|
}
|
|
|
|
// apply any remaining scalar selectors
|
|
uint32_t scalar0 = ~0U, scalar1 = ~0U;
|
|
|
|
size_t remaining = indices.size() - i;
|
|
if(remaining == 2)
|
|
{
|
|
scalar0 = indices[i];
|
|
scalar1 = indices[i + 1];
|
|
}
|
|
else if(remaining == 1)
|
|
{
|
|
scalar0 = indices[i];
|
|
}
|
|
|
|
return MakePointerVariable(id, leaf, scalar0, scalar1);
|
|
}
|
|
|
|
ShaderVariable Debugger::EvaluatePointerVariable(const ShaderVariable &ptr) const
|
|
{
|
|
if(ptr.type != VarType::GPUPointer)
|
|
return ptr;
|
|
|
|
ShaderVariable ret;
|
|
ret = *(const ShaderVariable *)(uintptr_t)ptr.value.u64v[0];
|
|
ret.name = ptr.name;
|
|
|
|
// we don't support pointers to scalars since our 'unit' of pointer is a ShaderVariable, so check
|
|
// if we have scalar indices to apply:
|
|
uint32_t scalar0 = ptr.value.uv[2];
|
|
uint32_t scalar1 = ptr.value.uv[3];
|
|
|
|
ShaderValue val;
|
|
|
|
if(ret.rows > 1)
|
|
{
|
|
// matrix case
|
|
|
|
if(scalar0 != ~0U && scalar1 != ~0U)
|
|
{
|
|
// two indices - selecting a scalar. scalar0 is the first index in the chain so it chooses
|
|
// column
|
|
if(VarTypeByteSize(ret.type) == 8)
|
|
val.u64v[0] = ret.value.u64v[scalar1 * ret.columns + scalar0];
|
|
else
|
|
val.uv[0] = ret.value.uv[scalar1 * ret.columns + scalar0];
|
|
|
|
// it's a scalar now, even if it was a matrix before
|
|
ret.rows = ret.columns = 1;
|
|
ret.value = val;
|
|
}
|
|
else if(scalar0 != ~0U)
|
|
{
|
|
// one index, selecting a column
|
|
for(uint32_t row = 0; row < ret.rows; row++)
|
|
{
|
|
if(VarTypeByteSize(ret.type) == 8)
|
|
val.u64v[0] = ret.value.u64v[row * ret.columns + scalar0];
|
|
else
|
|
val.uv[0] = ret.value.uv[row * ret.columns + scalar0];
|
|
}
|
|
|
|
// it's a vector now, even if it was a matrix before
|
|
ret.rows = 1;
|
|
ret.value = val;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// vector case, selecting a scalar (if anything)
|
|
if(scalar0 != ~0U)
|
|
{
|
|
if(VarTypeByteSize(ret.type) == 8)
|
|
val.u64v[0] = ret.value.u64v[scalar0];
|
|
else
|
|
val.uv[0] = ret.value.uv[scalar0];
|
|
|
|
// it's a scalar now, even if it was a matrix before
|
|
ret.columns = 1;
|
|
ret.value = val;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
Id Debugger::GetPointerBaseId(const ShaderVariable &ptr) const
|
|
{
|
|
RDCASSERT(ptr.type == VarType::GPUPointer);
|
|
|
|
// we stored the base ID in [4] so that it's always available regardless of access chains
|
|
return Id::fromWord(ptr.value.uv[4]);
|
|
}
|
|
|
|
void Debugger::WriteThroughPointer(const ShaderVariable &ptr, const ShaderVariable &val)
|
|
{
|
|
ShaderVariable *storage = (ShaderVariable *)(uintptr_t)ptr.value.u64v[0];
|
|
|
|
// we don't support pointers to scalars since our 'unit' of pointer is a ShaderVariable, so check
|
|
// if we have scalar indices to apply:
|
|
uint32_t scalar0 = ptr.value.uv[2];
|
|
uint32_t scalar1 = ptr.value.uv[3];
|
|
|
|
// in the common case we don't have scalar selectors. In this case just assign the value
|
|
if(scalar0 == ~0U && scalar1 == ~0U)
|
|
{
|
|
AssignValue(*storage, val);
|
|
}
|
|
else
|
|
{
|
|
// otherwise we need to store only the selected part of this pointer. We assume by SPIR-V
|
|
// validity rules that the incoming value matches the pointed value
|
|
if(storage->rows > 1)
|
|
{
|
|
// matrix case
|
|
|
|
if(scalar0 != ~0U && scalar1 != ~0U)
|
|
{
|
|
// two indices - selecting a scalar. scalar0 is the first index in the chain so it chooses
|
|
// column
|
|
if(VarTypeByteSize(storage->type) == 8)
|
|
storage->value.u64v[scalar1 * storage->columns + scalar0] = val.value.u64v[0];
|
|
else
|
|
storage->value.uv[scalar1 * storage->columns + scalar0] = val.value.uv[0];
|
|
}
|
|
else if(scalar0 != ~0U)
|
|
{
|
|
// one index, selecting a column
|
|
for(uint32_t row = 0; row < storage->rows; row++)
|
|
{
|
|
if(VarTypeByteSize(storage->type) == 8)
|
|
storage->value.u64v[row * storage->columns + scalar0] = val.value.u64v[0];
|
|
else
|
|
storage->value.uv[row * storage->columns + scalar0] = val.value.uv[0];
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// vector case, selecting a scalar
|
|
if(VarTypeByteSize(storage->type) == 8)
|
|
storage->value.u64v[scalar0] = val.value.u64v[0];
|
|
else
|
|
storage->value.uv[scalar0] = val.value.uv[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
rdcstr Debugger::GetRawName(Id id) const
|
|
{
|
|
return StringFormat::Fmt("_%u", id.value());
|
|
}
|
|
|
|
rdcstr Debugger::GetHumanName(Id id)
|
|
{
|
|
// see if we have a dynamic name assigned (to disambiguate), if so use that
|
|
auto it = dynamicNames.find(id);
|
|
if(it != dynamicNames.end())
|
|
return it->second;
|
|
|
|
// otherwise try the string first
|
|
rdcstr name = strings[id];
|
|
|
|
// if we don't have a string name, we can be sure the id is unambiguous
|
|
if(name.empty())
|
|
return GetRawName(id);
|
|
|
|
rdcstr basename = name;
|
|
|
|
// otherwise check to see if it's been used before. If so give it a new name
|
|
int alias = 2;
|
|
while(usedNames.find(name) != usedNames.end())
|
|
{
|
|
name = basename + "@" + ToStr(alias);
|
|
alias++;
|
|
}
|
|
|
|
usedNames.insert(name);
|
|
dynamicNames[id] = name;
|
|
|
|
return name;
|
|
}
|
|
|
|
void Debugger::AddSourceVars(rdcarray<SourceVariableMapping> &sourceVars, Id id)
|
|
{
|
|
rdcstr name;
|
|
|
|
auto it = dynamicNames.find(id);
|
|
if(it != dynamicNames.end())
|
|
name = it->second;
|
|
else
|
|
name = strings[id];
|
|
|
|
if(!name.empty())
|
|
{
|
|
Id type = idTypes[id];
|
|
|
|
uint32_t offset = 0;
|
|
AddSourceVars(sourceVars, dataTypes[type], name, GetRawName(id), offset);
|
|
}
|
|
}
|
|
|
|
void Debugger::AddSourceVars(rdcarray<SourceVariableMapping> &sourceVars, const DataType &inType,
|
|
const rdcstr &sourceName, const rdcstr &varName, uint32_t &offset)
|
|
{
|
|
SourceVariableMapping sourceVar;
|
|
|
|
switch(inType.type)
|
|
{
|
|
case DataType::UnknownType:
|
|
case DataType::ImageType:
|
|
case DataType::SamplerType:
|
|
case DataType::SampledImageType: return;
|
|
case DataType::PointerType:
|
|
{
|
|
// step silently into pointers
|
|
AddSourceVars(sourceVars, dataTypes[inType.InnerType()], sourceName, varName, offset);
|
|
return;
|
|
}
|
|
case DataType::ScalarType:
|
|
{
|
|
sourceVar.type = inType.scalar().Type();
|
|
sourceVar.rows = 1;
|
|
sourceVar.columns = 1;
|
|
break;
|
|
}
|
|
case DataType::VectorType:
|
|
{
|
|
sourceVar.type = inType.scalar().Type();
|
|
sourceVar.rows = 1;
|
|
sourceVar.columns = RDCMAX(1U, inType.vector().count);
|
|
break;
|
|
}
|
|
case DataType::MatrixType:
|
|
{
|
|
sourceVar.type = inType.scalar().Type();
|
|
sourceVar.columns = RDCMAX(1U, inType.matrix().count);
|
|
sourceVar.rows = RDCMAX(1U, inType.vector().count);
|
|
break;
|
|
}
|
|
case DataType::StructType:
|
|
{
|
|
for(int32_t i = 0; i < inType.children.count(); i++)
|
|
{
|
|
rdcstr childVarName = StringFormat::Fmt("%s._child%d", varName.c_str(), i);
|
|
|
|
rdcstr childSourceName;
|
|
if(inType.children[i].name.empty())
|
|
childSourceName = StringFormat::Fmt("%s._child%d", sourceName.c_str(), i);
|
|
else
|
|
childSourceName = sourceName + "." + inType.children[i].name;
|
|
|
|
AddSourceVars(sourceVars, dataTypes[inType.children[i].type], childSourceName, childVarName,
|
|
offset);
|
|
}
|
|
return;
|
|
}
|
|
case DataType::ArrayType:
|
|
{
|
|
ShaderVariable len = GetActiveLane().ids[inType.length];
|
|
for(uint32_t i = 0; i < len.value.u.x; i++)
|
|
{
|
|
rdcstr idx = StringFormat::Fmt("[%u]", i);
|
|
|
|
AddSourceVars(sourceVars, dataTypes[inType.InnerType()], sourceName + idx, varName + idx,
|
|
offset);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
sourceVar.name = sourceName;
|
|
sourceVar.offset = offset;
|
|
for(uint32_t x = 0; x < sourceVar.rows * sourceVar.columns; x++)
|
|
sourceVar.variables.push_back(DebugVariableReference(DebugVariableType::Variable, varName, x));
|
|
|
|
sourceVars.push_back(sourceVar);
|
|
|
|
offset++;
|
|
}
|
|
|
|
void Debugger::CalcActiveMask(rdcarray<bool> &activeMask)
|
|
{
|
|
// one bool per workgroup thread
|
|
activeMask.resize(workgroup.size());
|
|
|
|
// start as active, then if necessary turn off threads that are running diverged
|
|
for(bool &active : activeMask)
|
|
active = true;
|
|
|
|
// only pixel shaders automatically converge workgroups, compute shaders need explicit sync
|
|
if(stage != ShaderStage::Pixel)
|
|
return;
|
|
|
|
// TODO handle diverging control flow
|
|
}
|
|
|
|
void Debugger::AllocateVariable(Id id, Id typeId, DebugVariableType sourceVarType,
|
|
const rdcstr &sourceName, ShaderVariable &outVar)
|
|
{
|
|
// allocs should always be pointers
|
|
RDCASSERT(dataTypes[typeId].type == DataType::PointerType);
|
|
|
|
AllocateVariable(decorations[id], decorations[id], sourceVarType, sourceName, 0,
|
|
dataTypes[dataTypes[typeId].InnerType()], outVar);
|
|
}
|
|
|
|
uint32_t Debugger::AllocateVariable(const Decorations &varDecorations,
|
|
const Decorations &curDecorations,
|
|
DebugVariableType sourceVarType, const rdcstr &sourceName,
|
|
uint32_t offset, const DataType &inType, ShaderVariable &outVar)
|
|
{
|
|
const bool genLocations = (varDecorations.flags & Decorations::HasLocation) != 0;
|
|
|
|
switch(inType.type)
|
|
{
|
|
case DataType::PointerType:
|
|
{
|
|
RDCERR("Pointers not supported in interface variables");
|
|
return 0;
|
|
}
|
|
case DataType::ScalarType:
|
|
{
|
|
outVar.type = inType.scalar().Type();
|
|
outVar.rows = 1;
|
|
outVar.columns = 1;
|
|
break;
|
|
}
|
|
case DataType::VectorType:
|
|
{
|
|
outVar.type = inType.scalar().Type();
|
|
outVar.rows = 1;
|
|
outVar.columns = RDCMAX(1U, inType.vector().count);
|
|
break;
|
|
}
|
|
case DataType::MatrixType:
|
|
{
|
|
outVar.type = inType.scalar().Type();
|
|
outVar.columns = RDCMAX(1U, inType.matrix().count);
|
|
outVar.rows = RDCMAX(1U, inType.vector().count);
|
|
break;
|
|
}
|
|
case DataType::StructType:
|
|
{
|
|
uint32_t location = 0;
|
|
for(int32_t i = 0; i < inType.children.count(); i++)
|
|
{
|
|
ShaderVariable var;
|
|
var.name = StringFormat::Fmt("%s._child%d", outVar.name.c_str(), i);
|
|
|
|
rdcstr childName;
|
|
if(inType.children[i].name.empty())
|
|
childName = StringFormat::Fmt("%s._child%d", sourceName.c_str(), i);
|
|
else
|
|
childName = sourceName + "." + inType.children[i].name;
|
|
|
|
uint32_t childOffset = offset;
|
|
|
|
const Decorations &childDecorations = inType.children[i].decorations;
|
|
|
|
if(childDecorations.flags & Decorations::HasOffset)
|
|
childOffset += childDecorations.offset;
|
|
|
|
uint32_t locations =
|
|
AllocateVariable(varDecorations, childDecorations, sourceVarType, childName,
|
|
location + childOffset, dataTypes[inType.children[i].type], var);
|
|
|
|
if(genLocations)
|
|
location += locations;
|
|
|
|
var.name = StringFormat::Fmt("_child%d", i);
|
|
|
|
outVar.members.push_back(var);
|
|
}
|
|
return location;
|
|
}
|
|
case DataType::ArrayType:
|
|
{
|
|
// array stride is decorated on the type, not the member itself
|
|
const Decorations &typeDecorations = decorations[inType.id];
|
|
|
|
uint32_t location = 0;
|
|
|
|
ShaderVariable len = GetActiveLane().ids[inType.length];
|
|
for(uint32_t i = 0; i < len.value.u.x; i++)
|
|
{
|
|
rdcstr idx = StringFormat::Fmt("[%u]", i);
|
|
ShaderVariable var;
|
|
var.name = outVar.name + idx;
|
|
uint32_t locations =
|
|
AllocateVariable(varDecorations, curDecorations, sourceVarType, sourceName + idx,
|
|
location + offset, dataTypes[inType.InnerType()], var);
|
|
|
|
if(genLocations)
|
|
location += locations;
|
|
|
|
var.name = idx;
|
|
|
|
if(typeDecorations.flags & Decorations::HasArrayStride)
|
|
offset += typeDecorations.arrayStride;
|
|
|
|
outVar.members.push_back(var);
|
|
}
|
|
return location;
|
|
}
|
|
case DataType::ImageType:
|
|
case DataType::SamplerType:
|
|
case DataType::SampledImageType:
|
|
case DataType::UnknownType:
|
|
{
|
|
RDCERR("Unexpected variable type %d", inType.type);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(sourceVarType == DebugVariableType::Undefined)
|
|
return 0;
|
|
|
|
SourceVariableMapping sourceVar;
|
|
sourceVar.name = sourceName;
|
|
sourceVar.offset = offset;
|
|
sourceVar.type = outVar.type;
|
|
sourceVar.rows = outVar.rows;
|
|
sourceVar.columns = outVar.columns;
|
|
for(uint32_t x = 0; x < uint32_t(outVar.rows) * outVar.columns; x++)
|
|
sourceVar.variables.push_back(DebugVariableReference(sourceVarType, outVar.name, x));
|
|
|
|
ShaderBuiltin builtin = ShaderBuiltin::Undefined;
|
|
if(curDecorations.flags & Decorations::HasBuiltIn)
|
|
builtin = MakeShaderBuiltin(stage, curDecorations.builtIn);
|
|
|
|
globalSourceVars.push_back(sourceVar);
|
|
|
|
if(sourceVarType == DebugVariableType::Input)
|
|
{
|
|
uint32_t location = genLocations ? offset : 0;
|
|
|
|
uint32_t component = 0;
|
|
for(const DecorationAndParamData &dec : curDecorations.others)
|
|
{
|
|
if(dec.value == Decoration::Component)
|
|
{
|
|
component = dec.component;
|
|
break;
|
|
}
|
|
}
|
|
|
|
apiWrapper->FillInputValue(
|
|
outVar, builtin,
|
|
(curDecorations.flags & Decorations::HasLocation) ? curDecorations.location : location,
|
|
component);
|
|
}
|
|
else if(sourceVarType == DebugVariableType::Constant)
|
|
{
|
|
uint32_t set = 0, bind = 0;
|
|
if(varDecorations.flags & Decorations::HasDescriptorSet)
|
|
set = varDecorations.set;
|
|
if(varDecorations.flags & Decorations::HasBinding)
|
|
bind = varDecorations.binding;
|
|
|
|
// non-matrix case is simple, just read the size of the variable
|
|
if(sourceVar.rows == 1)
|
|
{
|
|
apiWrapper->ReadConstantBufferValue(set, bind, offset, VarByteSize(outVar), outVar.value.uv);
|
|
}
|
|
else
|
|
{
|
|
// matrix case is more complicated. Either read column by column or row by row depending on
|
|
// majorness
|
|
uint32_t matrixStride = curDecorations.matrixStride;
|
|
|
|
if(!(curDecorations.flags & Decorations::HasMatrixStride))
|
|
{
|
|
RDCWARN("Matrix without matrix stride - assuming legacy vec4 packed");
|
|
matrixStride = 16;
|
|
}
|
|
|
|
if(curDecorations.flags & Decorations::ColMajor)
|
|
{
|
|
ShaderValue tmp;
|
|
|
|
uint32_t colSize = VarTypeByteSize(sourceVar.type) * sourceVar.rows;
|
|
for(uint32_t c = 0; c < sourceVar.columns; c++)
|
|
{
|
|
// read the column
|
|
apiWrapper->ReadConstantBufferValue(set, bind, offset + c * matrixStride, colSize,
|
|
&tmp.uv[0]);
|
|
|
|
// now write it into the appropiate elements in the destination ShaderValue
|
|
for(uint32_t r = 0; r < sourceVar.rows; r++)
|
|
outVar.value.uv[r * sourceVar.columns + c] = tmp.uv[r];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// row major is easier, read row-by-row directly into the output variable
|
|
uint32_t rowSize = VarTypeByteSize(sourceVar.type) * sourceVar.columns;
|
|
for(uint32_t r = 0; r < sourceVar.rows; r++)
|
|
{
|
|
// read the column into the destination ShaderValue, which is tightly packed with rows
|
|
apiWrapper->ReadConstantBufferValue(set, bind, offset + r * matrixStride, rowSize,
|
|
&outVar.value.uv[r * sourceVar.columns]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// each row consumes a new location
|
|
return outVar.rows;
|
|
}
|
|
|
|
uint32_t Debugger::ApplyDerivatives(uint32_t quadIndex, const Decorations &curDecorations,
|
|
uint32_t location, const DataType &inType, ShaderVariable &outVar)
|
|
{
|
|
switch(inType.type)
|
|
{
|
|
case DataType::PointerType:
|
|
{
|
|
RDCERR("Pointers not supported in interface variables");
|
|
return 0;
|
|
}
|
|
case DataType::ScalarType:
|
|
case DataType::VectorType:
|
|
case DataType::MatrixType: break;
|
|
case DataType::StructType:
|
|
{
|
|
uint32_t childLocation = 0;
|
|
for(int32_t i = 0; i < inType.children.count(); i++)
|
|
{
|
|
const Decorations &childDecorations = inType.children[i].decorations;
|
|
|
|
uint32_t locations = ApplyDerivatives(quadIndex, childDecorations, location + childLocation,
|
|
dataTypes[inType.children[i].type], outVar.members[i]);
|
|
|
|
childLocation += locations;
|
|
}
|
|
return childLocation;
|
|
}
|
|
case DataType::ArrayType:
|
|
{
|
|
uint32_t childLocation = 0;
|
|
|
|
ShaderVariable len = GetActiveLane().ids[inType.length];
|
|
for(uint32_t i = 0; i < len.value.u.x; i++)
|
|
{
|
|
uint32_t locations = ApplyDerivatives(quadIndex, curDecorations, location + childLocation,
|
|
dataTypes[inType.InnerType()], outVar.members[i]);
|
|
|
|
childLocation += locations;
|
|
}
|
|
return childLocation;
|
|
}
|
|
case DataType::ImageType:
|
|
case DataType::SamplerType:
|
|
case DataType::SampledImageType:
|
|
case DataType::UnknownType:
|
|
{
|
|
RDCERR("Unexpected variable type %d", inType.type);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// only floats have derivatives
|
|
if(outVar.type == VarType::Float)
|
|
{
|
|
ShaderBuiltin builtin = ShaderBuiltin::Undefined;
|
|
if(curDecorations.flags & Decorations::HasBuiltIn)
|
|
builtin = MakeShaderBuiltin(stage, curDecorations.builtIn);
|
|
|
|
uint32_t component = 0;
|
|
for(const DecorationAndParamData &dec : curDecorations.others)
|
|
{
|
|
if(dec.value == Decoration::Component)
|
|
{
|
|
component = dec.component;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// We make the assumption that the coarse derivatives are generated from (0,0) in the quad, and
|
|
// fine derivatives are generated from the destination index and its neighbours in X and Y.
|
|
// This isn't spec'd but we must assume something and this will hopefully get us closest to
|
|
// reproducing actual results.
|
|
//
|
|
// For debugging, we need members of the quad to be able to generate coarse and fine
|
|
// derivatives.
|
|
//
|
|
// For (0,0) we only need the coarse derivatives to get our neighbours (1,0) and (0,1) which
|
|
// will give us coarse and fine derivatives being identical.
|
|
//
|
|
// For the others we will need to use a combination of coarse and fine derivatives to get the
|
|
// diagonal element in the quad. In the examples below, remember that the quad indices are:
|
|
//
|
|
// +---+---+
|
|
// | 0 | 1 |
|
|
// +---+---+
|
|
// | 2 | 3 |
|
|
// +---+---+
|
|
//
|
|
// And that we have definitions of the derivatives:
|
|
//
|
|
// ddx_coarse = (1,0) - (0,0)
|
|
// ddy_coarse = (0,1) - (0,0)
|
|
//
|
|
// i.e. the same for all members of the quad
|
|
//
|
|
// ddx_fine = (x,y) - (1-x,y)
|
|
// ddy_fine = (x,y) - (x,1-y)
|
|
//
|
|
// i.e. the difference to the neighbour of our desired invocation (the one we have the actual
|
|
// inputs for, from gathering above).
|
|
//
|
|
// So e.g. if our thread is at (1,1) destIdx = 3
|
|
//
|
|
// (1,0) = (1,1) - ddx_fine
|
|
// (0,1) = (1,1) - ddy_fine
|
|
// (0,0) = (1,1) - ddy_fine - ddx_coarse
|
|
//
|
|
// and ddy_coarse is unused. For (1,0) destIdx = 1:
|
|
//
|
|
// (1,1) = (1,0) + ddy_fine
|
|
// (0,1) = (1,0) - ddx_coarse + ddy_coarse
|
|
// (0,0) = (1,0) - ddx_coarse
|
|
//
|
|
// and ddx_fine is unused (it's identical to ddx_coarse anyway)
|
|
|
|
if(curDecorations.flags & Decorations::HasLocation)
|
|
location = curDecorations.location;
|
|
|
|
DebugAPIWrapper::DerivativeDeltas derivs =
|
|
apiWrapper->GetDerivative(builtin, location, component);
|
|
|
|
Vec4f &dst = *(Vec4f *)outVar.value.fv;
|
|
|
|
// in the diagrams below * marks the active lane index.
|
|
//
|
|
// V and ^ == coarse ddy
|
|
// , and ` == fine ddy
|
|
// < and > == coarse ddx
|
|
// { and } == fine ddx
|
|
//
|
|
// We are basically making one or two cardinal direction moves from the starting point
|
|
// (activeLaneIndex) to the end point (quadIndex).
|
|
RDCASSERTNOTEQUAL(activeLaneIndex, quadIndex);
|
|
|
|
switch(activeLaneIndex)
|
|
{
|
|
case 0:
|
|
{
|
|
// +---+---+
|
|
// |*0 > 1 |
|
|
// +-V-+-V-+
|
|
// | 2 | 3 |
|
|
// +---+---+
|
|
switch(quadIndex)
|
|
{
|
|
case 0: break;
|
|
case 1: dst += derivs.ddxcoarse; break;
|
|
case 2: dst += derivs.ddycoarse; break;
|
|
case 3:
|
|
dst += derivs.ddxcoarse;
|
|
dst += derivs.ddycoarse;
|
|
break;
|
|
default: break;
|
|
}
|
|
break;
|
|
}
|
|
case 1:
|
|
{
|
|
// we need to use fine to get from 1 to 3 as coarse only ever involves 0->1 and 0->2
|
|
// +---+---+
|
|
// | 0 < 1*|
|
|
// +-V-+-,-+
|
|
// | 2 | 3 |
|
|
// +---+---+
|
|
switch(quadIndex)
|
|
{
|
|
case 0: dst -= derivs.ddxcoarse; break;
|
|
case 1: break;
|
|
case 2:
|
|
dst -= derivs.ddxcoarse;
|
|
dst += derivs.ddycoarse;
|
|
break;
|
|
case 3: dst += derivs.ddyfine; break;
|
|
default: break;
|
|
}
|
|
break;
|
|
}
|
|
case 2:
|
|
{
|
|
// +---+---+
|
|
// | 0 > 1 |
|
|
// +-^-+---+
|
|
// |*2 } 3 |
|
|
// +---+---+
|
|
switch(quadIndex)
|
|
{
|
|
case 0: dst -= derivs.ddycoarse; break;
|
|
case 1:
|
|
dst -= derivs.ddycoarse;
|
|
dst += derivs.ddxcoarse;
|
|
break;
|
|
case 2: break;
|
|
case 3: dst += derivs.ddxfine; break;
|
|
default: break;
|
|
}
|
|
break;
|
|
}
|
|
case 3:
|
|
{
|
|
// +---+---+
|
|
// | 0 < 1 |
|
|
// +---+-`-+
|
|
// | 2 { 3*|
|
|
// +---+---+
|
|
switch(quadIndex)
|
|
{
|
|
case 0:
|
|
dst -= derivs.ddyfine;
|
|
dst -= derivs.ddxcoarse;
|
|
break;
|
|
case 1: dst -= derivs.ddyfine; break;
|
|
case 2: dst -= derivs.ddxfine; break;
|
|
case 3: break;
|
|
default: break;
|
|
}
|
|
break;
|
|
}
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
// each row consumes a new location
|
|
return outVar.rows;
|
|
}
|
|
|
|
void Debugger::PreParse(uint32_t maxId)
|
|
{
|
|
Processor::PreParse(maxId);
|
|
|
|
strings.resize(idTypes.size());
|
|
}
|
|
|
|
void Debugger::PostParse()
|
|
{
|
|
Processor::PostParse();
|
|
|
|
for(const MemberName &mem : memberNames)
|
|
dataTypes[mem.id].children[mem.member].name = mem.name;
|
|
|
|
// global IDs never hit a death point
|
|
for(const Variable &v : globals)
|
|
idDeathOffset[v.id] = ~0U;
|
|
|
|
memberNames.clear();
|
|
}
|
|
|
|
void Debugger::RegisterOp(Iter it)
|
|
{
|
|
Processor::RegisterOp(it);
|
|
|
|
OpDecoder opdata(it);
|
|
|
|
// we add +1 so that we don't remove the ID on its last use, but the next subsequent instruction
|
|
// since blocks always end with a terminator that doesn't consume IDs we're interested in
|
|
// (variables) we'll always have one extra instruction to step to
|
|
OpDecoder::ForEachID(it, [this, &it](Id id, bool result) {
|
|
idDeathOffset[id] = RDCMAX(it.offs() + 1, idDeathOffset[id]);
|
|
});
|
|
|
|
if(opdata.op == Op::Line || opdata.op == Op::NoLine)
|
|
{
|
|
// ignore OpLine/OpNoLine
|
|
}
|
|
if(opdata.op == Op::String)
|
|
{
|
|
OpString string(it);
|
|
|
|
strings[string.result] = string.string;
|
|
}
|
|
else if(opdata.op == Op::Name)
|
|
{
|
|
OpName name(it);
|
|
|
|
// technically you could name a string - in that case we ignore the name
|
|
if(strings[name.target].empty())
|
|
strings[name.target] = name.name;
|
|
}
|
|
else if(opdata.op == Op::MemberName)
|
|
{
|
|
OpMemberName memberName(it);
|
|
|
|
memberNames.push_back({memberName.type, memberName.member, memberName.name});
|
|
}
|
|
else if(opdata.op == Op::EntryPoint)
|
|
{
|
|
OpEntryPoint entryPoint(it);
|
|
|
|
entryLookup[entryPoint.name] = entryPoint.entryPoint;
|
|
}
|
|
else if(opdata.op == Op::Function)
|
|
{
|
|
OpFunction func(it);
|
|
|
|
curFunction = &functions[func.result];
|
|
|
|
curFunction->begin = it.offs();
|
|
}
|
|
else if(opdata.op == Op::FunctionParameter)
|
|
{
|
|
OpFunctionParameter param(it);
|
|
|
|
curFunction->parameters.push_back(param.result);
|
|
}
|
|
else if(opdata.op == Op::Variable)
|
|
{
|
|
OpVariable var(it);
|
|
|
|
if(var.storageClass == StorageClass::Function && curFunction)
|
|
curFunction->variables.push_back(var.result);
|
|
}
|
|
else if(opdata.op == Op::Label)
|
|
{
|
|
OpLabel lab(it);
|
|
|
|
labelInstruction[lab.result] = instructionOffsets.count();
|
|
}
|
|
|
|
// everything else inside a function becomes an instruction, including the OpFunction and
|
|
// OpFunctionEnd. We won't actually execute these instructions
|
|
|
|
instructionOffsets.push_back(it.offs());
|
|
|
|
if(opdata.op == Op::FunctionEnd)
|
|
{
|
|
// don't automatically kill function parameters and variables. They will be manually killed when
|
|
// returning from a function's scope
|
|
for(const Id id : curFunction->parameters)
|
|
idDeathOffset[id] = ~0U;
|
|
for(const Id id : curFunction->variables)
|
|
idDeathOffset[id] = ~0U;
|
|
|
|
curFunction = NULL;
|
|
}
|
|
}
|
|
|
|
}; // namespace rdcspv
|