void FShaderResource::InitRHI()
{
checkf(Code.Num() > 0, TEXT("FShaderResource::InitRHI was called with empty bytecode, which can happen if the resource is initialized multiple times on platforms with no editor data."));
// we can't have this called on the wrong platform's shaders
if (!ArePlatformsCompatible(GMaxRHIShaderPlatform, (EShaderPlatform)Target.Platform))
{
if (FPlatformProperties::RequiresCookedData())
{
UE_LOG(LogShaders, Fatal, TEXT("FShaderResource::InitRHI got platform %s but it is not compatible with %s"),
*LegacyShaderPlatformToShaderFormat((EShaderPlatform)Target.Platform).ToString(), *LegacyShaderPlatformToShaderFormat(GMaxRHIShaderPlatform).ToString());
}
return;
}
INC_DWORD_STAT_BY(STAT_Shaders_NumShadersUsedForRendering, 1);
SCOPE_CYCLE_COUNTER(STAT_Shaders_RTShaderLoadTime);
if(Target.Frequency == SF_Vertex)
{
VertexShader = RHICreateVertexShader(Code);
}
else if(Target.Frequency == SF_Pixel)
{
PixelShader = RHICreatePixelShader(Code);
}
else if(Target.Frequency == SF_Hull)
{
HullShader = RHICreateHullShader(Code);
}
else if(Target.Frequency == SF_Domain)
{
DomainShader = RHICreateDomainShader(Code);
}
else if(Target.Frequency == SF_Geometry)
{
GeometryShader = RHICreateGeometryShader(Code);
}
else if(Target.Frequency == SF_Compute)
{
ComputeShader = RHICreateComputeShader(Code);
}
if (!FPlatformProperties::HasEditorOnlyData())
{
DEC_DWORD_STAT_BY_FName(GetMemoryStatType((EShaderFrequency)Target.Frequency).GetName(), Code.Num());
DEC_DWORD_STAT_BY(STAT_Shaders_ShaderResourceMemory, Code.GetAllocatedSize());
Code.Empty();
}
}
void FShaderResource::InitRHI()
{
checkf(Code.Num() > 0, TEXT("FShaderResource::InitRHI was called with empty bytecode, which can happen if the resource is initialized multiple times on platforms with no editor data."));
// we can't have this called on the wrong platform's shaders
if (!ArePlatformsCompatible(GMaxRHIShaderPlatform, (EShaderPlatform)Target.Platform))
{
if (FPlatformProperties::RequiresCookedData())
{
UE_LOG(LogShaders, Fatal, TEXT("FShaderResource::InitRHI got platform %s but it is not compatible with %s"),
*LegacyShaderPlatformToShaderFormat((EShaderPlatform)Target.Platform).ToString(), *LegacyShaderPlatformToShaderFormat(GMaxRHIShaderPlatform).ToString());
}
return;
}
INC_DWORD_STAT_BY(STAT_Shaders_NumShadersUsedForRendering, 1);
SCOPE_CYCLE_COUNTER(STAT_Shaders_RTShaderLoadTime);
FShaderCache* ShaderCache = FShaderCache::GetShaderCache();
if(Target.Frequency == SF_Vertex)
{
VertexShader = ShaderCache ? ShaderCache->GetVertexShader((EShaderPlatform)Target.Platform, OutputHash, Code) : RHICreateVertexShader(Code);
}
else if(Target.Frequency == SF_Pixel)
{
PixelShader = ShaderCache ? ShaderCache->GetPixelShader((EShaderPlatform)Target.Platform, OutputHash, Code) : RHICreatePixelShader(Code);
}
else if(Target.Frequency == SF_Hull)
{
HullShader = ShaderCache ? ShaderCache->GetHullShader((EShaderPlatform)Target.Platform, OutputHash, Code) : RHICreateHullShader(Code);
}
else if(Target.Frequency == SF_Domain)
{
DomainShader = ShaderCache ? ShaderCache->GetDomainShader((EShaderPlatform)Target.Platform, OutputHash, Code) : RHICreateDomainShader(Code);
}
else if(Target.Frequency == SF_Geometry)
{
if (SpecificType)
{
FStreamOutElementList ElementList;
TArray<uint32> StreamStrides;
int32 RasterizedStream = -1;
SpecificType->GetStreamOutElements(ElementList, StreamStrides, RasterizedStream);
checkf(ElementList.Num(), *FString::Printf(TEXT("Shader type %s was given GetStreamOutElements implementation that had no elements!"), SpecificType->GetName()));
//@todo - not using the cache
GeometryShader = RHICreateGeometryShaderWithStreamOutput(Code, ElementList, StreamStrides.Num(), StreamStrides.GetData(), RasterizedStream);
}
else
{
GeometryShader = ShaderCache ? ShaderCache->GetGeometryShader((EShaderPlatform)Target.Platform, OutputHash, Code) : RHICreateGeometryShader(Code);
}
}
else if(Target.Frequency == SF_Compute)
{
ComputeShader = ShaderCache ? ShaderCache->GetComputeShader((EShaderPlatform)Target.Platform, Code) : RHICreateComputeShader(Code);
}
if (Target.Frequency != SF_Geometry)
{
checkf(!SpecificType, *FString::Printf(TEXT("Only geometry shaders can use GetStreamOutElements, shader type %s"), SpecificType->GetName()));
}
if (!FPlatformProperties::HasEditorOnlyData())
{
DEC_DWORD_STAT_BY_FName(GetMemoryStatType((EShaderFrequency)Target.Frequency).GetName(), Code.Num());
DEC_DWORD_STAT_BY(STAT_Shaders_ShaderResourceMemory, Code.GetAllocatedSize());
Code.Empty();
}
}
