void BeginRecompileGlobalShaders(const TArray<FShaderType*>& OutdatedShaderTypes, EShaderPlatform ShaderPlatform)
{
if( !FPlatformProperties::RequiresCookedData() )
{
// Flush pending accesses to the existing global shaders.
FlushRenderingCommands();
TShaderMap<FGlobalShaderType>* GlobalShaderMap = GetGlobalShaderMap(ShaderPlatform);
for (int32 TypeIndex = 0; TypeIndex < OutdatedShaderTypes.Num(); TypeIndex++)
{
FGlobalShaderType* CurrentGlobalShaderType = OutdatedShaderTypes[TypeIndex]->GetGlobalShaderType();
if (CurrentGlobalShaderType)
{
UE_LOG(LogShaders, Log, TEXT("Flushing Global Shader %s"), CurrentGlobalShaderType->GetName());
GlobalShaderMap->RemoveShaderType(CurrentGlobalShaderType);
//invalidate global bound shader states so they will be created with the new shaders the next time they are set (in SetGlobalBoundShaderState)
for(TLinkedList<FGlobalBoundShaderStateResource*>::TIterator It(FGlobalBoundShaderStateResource::GetGlobalBoundShaderStateList());It;It.Next())
{
BeginUpdateResourceRHI(*It);
}
}
}
VerifyGlobalShaders(ShaderPlatform, false);
}
}
TArray<uint8>* BackupGlobalShaderMap(EShaderPlatform Platform)
{
TArray<uint8>* ShaderData = new TArray<uint8>();
FMemoryWriter Ar(*ShaderData);
GGlobalShaderMap[Platform]->SerializeInline(Ar, true, true);
GGlobalShaderMap[Platform]->Empty();
// Remove cached references to global shaders
for(TLinkedList<FGlobalBoundShaderStateResource*>::TIterator It(FGlobalBoundShaderStateResource::GetGlobalBoundShaderStateList());It;It.Next())
{
BeginUpdateResourceRHI(*It);
}
return ShaderData;
}
/**
* Forces a recompile of the global shaders.
*/
void RecompileGlobalShaders()
{
if( !FPlatformProperties::RequiresCookedData() )
{
// Flush pending accesses to the existing global shaders.
FlushRenderingCommands();
GetGlobalShaderMap(GRHIShaderPlatform)->Empty();
VerifyGlobalShaders(GRHIShaderPlatform, false);
GShaderCompilingManager->ProcessAsyncResults(false, true);
//invalidate global bound shader states so they will be created with the new shaders the next time they are set (in SetGlobalBoundShaderState)
for(TLinkedList<FGlobalBoundShaderStateResource*>::TIterator It(FGlobalBoundShaderStateResource::GetGlobalBoundShaderStateList());It;It.Next())
{
BeginUpdateResourceRHI(*It);
}
}
}
void BackupGlobalShaderMap(FGlobalShaderBackupData& OutGlobalShaderBackup)
{
for (int32 i = (int32)ERHIFeatureLevel::ES2; i < (int32)ERHIFeatureLevel::Num; ++i)
{
EShaderPlatform ShaderPlatform = GetFeatureLevelShaderPlatform((ERHIFeatureLevel::Type)i);
if (ShaderPlatform < EShaderPlatform::SP_NumPlatforms && GGlobalShaderMap[ShaderPlatform] != nullptr)
{
TArray<uint8>* ShaderData = new TArray<uint8>();
FMemoryWriter Ar(*ShaderData);
GGlobalShaderMap[ShaderPlatform]->SerializeInline(Ar, true, true);
GGlobalShaderMap[ShaderPlatform]->Empty();
OutGlobalShaderBackup.FeatureLevelShaderData[i] = ShaderData;
}
}
// Remove cached references to global shaders
for (TLinkedList<FGlobalBoundShaderStateResource*>::TIterator It(FGlobalBoundShaderStateResource::GetGlobalBoundShaderStateList()); It; It.Next())
{
BeginUpdateResourceRHI(*It);
}
}
