void FVertexFactoryType::AddReferencedUniformBufferIncludes(FShaderCompilerEnvironment& OutEnvironment, FString& OutSourceFilePrefix, EShaderPlatform Platform)
{
// Cache uniform buffer struct declarations referenced by this shader type's files
if (!bCachedUniformBufferStructDeclarations[Platform])
{
CacheUniformBufferIncludes(ReferencedUniformBufferStructsCache, Platform);
bCachedUniformBufferStructDeclarations[Platform] = true;
}
FString UniformBufferIncludes;
for (TMap<const TCHAR*,FCachedUniformBufferDeclaration>::TConstIterator It(ReferencedUniformBufferStructsCache); It; ++It)
{
check(It.Value().Declaration[Platform].Len() > 0);
UniformBufferIncludes += FString::Printf(TEXT("#include \"UniformBuffers/%s.usf\"") LINE_TERMINATOR, It.Key());
OutEnvironment.IncludeFileNameToContentsMap.Add(
*FString::Printf(TEXT("UniformBuffers/%s.usf"),It.Key()),
It.Value().Declaration[Platform]
);
for (TLinkedList<FUniformBufferStruct*>::TIterator StructIt(FUniformBufferStruct::GetStructList()); StructIt; StructIt.Next())
{
if (It.Key() == StructIt->GetShaderVariableName())
{
StructIt->AddResourceTableEntries(OutEnvironment.ResourceTableMap, OutEnvironment.ResourceTableLayoutHashes);
}
}
}
FString& GeneratedUniformBuffersInclude = OutEnvironment.IncludeFileNameToContentsMap.FindOrAdd("GeneratedUniformBuffers.usf");
GeneratedUniformBuffersInclude += UniformBufferIncludes;
}
FUniformBufferStruct* FindUniformBufferStructByName(const TCHAR* StructName)
{
for (TLinkedList<FUniformBufferStruct*>::TIterator StructIt(FUniformBufferStruct::GetStructList()); StructIt; StructIt.Next())
{
if (!FCString::Stricmp(StructIt->GetStructTypeName(), StructName))
{
return *StructIt;
}
}
return NULL;
}
void CacheUniformBufferIncludes(TMap<const TCHAR*,FCachedUniformBufferDeclaration>& Cache, EShaderPlatform Platform)
{
for (TMap<const TCHAR*,FCachedUniformBufferDeclaration>::TIterator It(Cache); It; ++It)
{
FCachedUniformBufferDeclaration& BufferDeclaration = It.Value();
check(BufferDeclaration.Declaration[Platform].Len() == 0);
for (TLinkedList<FUniformBufferStruct*>::TIterator StructIt(FUniformBufferStruct::GetStructList()); StructIt; StructIt.Next())
{
if (It.Key() == StructIt->GetShaderVariableName())
{
BufferDeclaration.Declaration[Platform] = CreateUniformBufferShaderDeclaration(StructIt->GetShaderVariableName(), **StructIt, Platform);
break;
}
}
}
}
/**
* Construct a shader from shader compiler output.
*/
FShader::FShader(const CompiledShaderInitializerType& Initializer):
MaterialShaderMapHash(Initializer.MaterialShaderMapHash),
VFType(Initializer.VertexFactoryType),
Type(Initializer.Type),
Target(Initializer.Target),
NumRefs(0),
SetParametersId(0),
Canary(ShaderMagic_Initialized)
{
OutputHash = Initializer.OutputHash;
checkSlow(OutputHash != FSHAHash());
if (Type)
{
// Store off the source hash that this shader was compiled with
// This will be used as part of the shader key in order to identify when shader files have been changed and a recompile is needed
SourceHash = Type->GetSourceHash();
}
if (VFType)
{
// Store off the VF source hash that this shader was compiled with
VFSourceHash = VFType->GetSourceHash();
}
// Bind uniform buffer parameters automatically
for (TLinkedList<FUniformBufferStruct*>::TIterator StructIt(FUniformBufferStruct::GetStructList()); StructIt; StructIt.Next())
{
if (Initializer.ParameterMap.ContainsParameterAllocation(StructIt->GetShaderVariableName()))
{
UniformBufferParameterStructs.Add(*StructIt);
UniformBufferParameters.Add(StructIt->ConstructTypedParameter());
FShaderUniformBufferParameter* Parameter = UniformBufferParameters.Last();
Parameter->Bind(Initializer.ParameterMap, StructIt->GetShaderVariableName(), SPF_Mandatory);
}
}
SetResource(Initializer.Resource);
// Register the shader now that it is valid, so that it can be reused
Register();
}