public ShaderReflection WithEntryPoint(Spv.ExecutionModel executionModel, Function value, string name = null)
{
var interfaceCollector = new InterfaceCollector();
interfaceCollector.Visit(value);
return(this.With(new EntryPoint(executionModel, value, name ?? value.DebugName ?? "main", interfaceCollector.Inputs.Concat(interfaceCollector.Outputs).Concat(interfaceCollector.Uniforms))));
}
public EntryPoint(Spv.ExecutionModel executionModel, Function value, string name, IEnumerable <Node> @interface, string debugName = null)
{
this.ExecutionModel = executionModel;
this.Value = value;
this.Name = name;
if (@interface != null)
{
foreach (var node in @interface)
{
this.Interface.Add(node);
}
}
DebugName = debugName;
}
void WriteHeader()
{
mWriter.Write(MagicNumber);
mWriter.Write(0, 1, 4, 0);
mWriter.Write(0);
mWriter.Write(IdGenerator.Count + 1);
mWriter.Write(0);
// Capabilities
mWriter.WriteInstruction(2, Spv.Op.OpCapability, (UInt32)Spv.Capability.CapabilityShader);
mWriter.WriteInstruction(2, Spv.Op.OpCapability, (UInt32)Spv.Capability.CapabilityLinkage);
foreach (var capability in mTypeCollector.RequiredCapabilities)
{
mWriter.WriteInstruction(2, Spv.Op.OpCapability, (UInt32)capability);
}
// Extension Instance Imports
foreach (var extLibraryImport in mTypeCollector.mReferencedExtensionLibraryImports)
{
var byteCount = mWriter.GetPaddedByteCount(extLibraryImport.ExtensionLibraryName);
var wordCount = byteCount / 4;
UInt16 totalSize = (UInt16)(2 + wordCount);
mWriter.WriteInstruction(totalSize, Spv.Op.OpExtInstImport, GetId(extLibraryImport));
mWriter.Write(extLibraryImport.ExtensionLibraryName);
}
// Memory Models
mWriter.WriteInstruction(3, Spv.Op.OpMemoryModel, (UInt32)Spv.AddressingModel.AddressingModelLogical, (UInt32)Spv.MemoryModel.MemoryModelGLSL450);
// EntryPoints
foreach (var entryPoint in mTypeCollector.mEntryPoints)
{
var entryPointFn = entryPoint.mEntryPointFunction;
var entryPointId = GetId(entryPointFn);
var entryPointName = entryPointFn.DebugInfo.Name;
var byteCount = mWriter.GetPaddedByteCount(entryPointName);
var wordCount = byteCount / 4;
var interfaceSize = entryPoint.mGlobalVariablesBlock.mLocalVariables.Count + entryPoint.mInterfaceVariables.mLocalVariables.Count;
UInt16 totalSize = (UInt16)(3 + wordCount + interfaceSize);
Spv.ExecutionModel executionModel = Spv.ExecutionModel.ExecutionModelFragment;
if (entryPoint.mStageType == FragmentType.Vertex)
{
executionModel = Spv.ExecutionModel.ExecutionModelVertex;
}
else if (entryPoint.mStageType == FragmentType.Pixel)
{
executionModel = Spv.ExecutionModel.ExecutionModelFragment;
}
mWriter.WriteInstruction(totalSize, Spv.Op.OpEntryPoint, (UInt32)executionModel, entryPointId);
mWriter.Write(entryPointFn.DebugInfo.Name);
foreach (var interfaceVar in entryPoint.mGlobalVariablesBlock.mLocalVariables)
{
mWriter.Write(GetId(interfaceVar));
}
foreach (var interfaceVar in entryPoint.mInterfaceVariables.mLocalVariables)
{
mWriter.Write(GetId(interfaceVar));
}
}
// ExecutionMode (per entry point)
foreach (var entryPoint in mTypeCollector.mEntryPoints)
{
WriteBlockInstructions(entryPoint.mExecutionModesBlock, entryPoint.mExecutionModesBlock.mOps);
}
mWriter.WriteInstruction(3, Spv.Op.OpSource, 0, 100);
var capabilities = new HashSet <Spv.Capability>();
//foreach(var entryPoint in mTypeCollector.mEntryPoints)
//{
// foreach(var capability in entryPoint.m)
//}
}
public ShaderReflection WithEntryPoint(Spv.ExecutionModel executionModel, Function value, string name, IEnumerable <Node> @interface)
{
return(this.With(new EntryPoint(executionModel, value, name, @interface)));
}
