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[SpirvTranslator] Read buffer stride and descriptor word 3 from portable buffer words

This commit is contained in:
ParantezTech 2026-10-08 02:51:25 +03:00
parent add35a79e6
commit fb5b9c014e
2 changed files with 34 additions and 2 deletions
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19
src/SharpEmu.ShaderCompiler.Vulkan/Gen5SpirvTranslator.Resources.cs
View File

@ -203,6 +203,15 @@ public static partial class Gen5SpirvTranslator
_interfaces.Add(_runtimeBufferBiases);
}
if (_request.Bindings.BufferWordCount != 0)
{
var wordArrayType = _module.TypeArray(_uintType, _request.Bindings.BufferWordCount);
_portableBufferWords = _module.AddGlobalVariable(
_module.TypePointer(SpirvStorageClass.Private, wordArrayType), SpirvStorageClass.Private, _module.ConstantNull(wordArrayType));
_module.AddName(_portableBufferWords, "guestBufferWords");
_interfaces.Add(_portableBufferWords);
}
if (info.UsesDeviceAddresses)
{
_module.AddCapability(SpirvCapability.PhysicalStorageBufferAddresses);
@ -394,8 +403,18 @@ public static partial class Gen5SpirvTranslator
var bias = BitwiseAnd(ShiftRightLogical(packed, UInt((buffer % 4) * 8)), UInt(0xFF));
Store(RuntimeBufferBiasPointer((int)buffer), bias);
}
for (uint dword = 0; dword < layout.BufferWordCount; dword++)
{
Store(PortableBufferWordPointer((int)dword), LoadShaderDataDword(UInt(layout.BufferWordDword + dword)));
}
}
private uint _portableBufferWords;
private uint PortableBufferWordPointer(int dword) =>
_module.AddInstruction(SpirvOp.AccessChain, _privateUintPointer, _portableBufferWords, UInt(checked((uint)dword)));
private uint LoadShaderDataDword(uint dwordIndex)
{
var layout = _request.Bindings;

17
src/SharpEmu.ShaderCompiler.Vulkan/Gen5SpirvTranslator.cs
View File

@ -3144,9 +3144,22 @@ public static partial class Gen5SpirvTranslator
}
var specialized = info.Buffers[bindingIndex];
var stride = UInt(specialized.PackedStride & 0x3FFF);
var descriptorFormat = specialized.DescriptorFormat;
var descriptorWord3 = UInt((specialized.DescriptorFormat << 12) | (specialized.DescriptorSwizzle & 0xFFF));
uint stride;
uint descriptorWord3;
if (_portableBufferWords != 0)
{
var portableDword = bindingIndex * PortableBufferWord.DwordCount;
stride = Load(_uintType, PortableBufferWordPointer(portableDword));
descriptorWord3 = PortableBufferWord.ReadsFormatAtRuntime(specialized)
? Load(_uintType, PortableBufferWordPointer(portableDword + 1))
: UInt((specialized.DescriptorFormat << 12) | (specialized.DescriptorSwizzle & 0xFFF));
}
else
{
stride = UInt(specialized.PackedStride & 0x3FFF);
descriptorWord3 = UInt((specialized.DescriptorFormat << 12) | (specialized.DescriptorSwizzle & 0xFFF));
}
var scalarOffset = instruction.Sources.Count > 2
? GetRawSource(instruction, 2)