Ejemplos de FShaderType::ConstructForDeserialization en C++ (Cpp)

Ejemplo n.º 1

Archivo: Shader.cpp Proyecto: amyvmiwei/UnrealEngine4

void FShaderType::Initialize(const TMap<FString, TArray<const TCHAR*> >& ShaderFileToUniformBufferVariables)
{
	if (!FPlatformProperties::RequiresCookedData())
	{
		for(TLinkedList<FShaderType*>::TIterator It(FShaderType::GetTypeList()); It; It.Next())
		{
			FShaderType* Type = *It;
			GenerateReferencedUniformBuffers(Type->SourceFilename, Type->Name, ShaderFileToUniformBufferVariables, Type->ReferencedUniformBufferStructsCache);

			// Cache serialization history for each shader type
			// This history is used to detect when shader serialization changes without a corresponding .usf change
			{
				// Construct a temporary shader, which is initialized to safe values for serialization
				FShader* TempShader = Type->ConstructForDeserialization();
				check(TempShader != NULL);
				TempShader->Type = Type;

				// Serialize the temp shader to memory and record the number and sizes of serializations
				TArray<uint8> TempData;
				FMemoryWriter Ar(TempData, true);
				FShaderSaveArchive SaveArchive(Ar, Type->SerializationHistory);
				TempShader->SerializeBase(SaveArchive, false);

				// Destroy the temporary shader
				delete TempShader;
			}
		}
	}

	bInitializedSerializationHistory = true;
}