/** MCPP callback for retrieving file contents. */
	static int GetFileContents(void* InUserData, const ANSICHAR* InFilename, const ANSICHAR** OutContents, size_t* OutContentSize)
	{
		auto* This = (FSimpleMcppFileLoader*)InUserData;
		FString Filename = GetRelativeShaderFilename(ANSI_TO_TCHAR(InFilename));

		FShaderContents* CachedContents = This->CachedFileContents.Find(Filename);
		if (!CachedContents)
		{
			FString FileContents;
			FFileHelper::LoadFileToString(FileContents, *Filename);

			if (FileContents.Len() > 0)
			{
				CachedContents = &This->CachedFileContents.Add(Filename,StringToArray<ANSICHAR>(*FileContents, FileContents.Len()));
			}
		}

		if (OutContents)
		{
			*OutContents = CachedContents ? CachedContents->GetData() : nullptr;
		}
		if (OutContentSize)
		{
			*OutContentSize = CachedContents ? CachedContents->Num() : 0;
		}

		return !!CachedContents;
	}
Ejemplo n.º 2
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	/** MCPP callback for retrieving file contents. */
	static int GetFileContents(void* InUserData, const ANSICHAR* InFilename, const ANSICHAR** OutContents, size_t* OutContentSize)
	{
		FMcppFileLoader* This = (FMcppFileLoader*)InUserData;
		FString Filename = GetRelativeShaderFilename(ANSI_TO_TCHAR(InFilename));

		FShaderContents* CachedContents = This->CachedFileContents.Find(Filename);
		if (!CachedContents)
		{
			FString FileContents;
			if (This->ShaderInput.Environment.IncludeFileNameToContentsMap.Contains(Filename))
			{
				FileContents = This->ShaderInput.Environment.IncludeFileNameToContentsMap.FindRef(Filename);
			}
			else
			{
				LoadShaderSourceFile(*Filename,FileContents);
			}

			if (FileContents.Len() > 0)
			{
				CachedContents = &This->CachedFileContents.Add(Filename,StringToArray<ANSICHAR>(*FileContents, FileContents.Len()));
			}
		}

		if (OutContents)
		{
			*OutContents = CachedContents ? CachedContents->GetData() : NULL;
		}
		if (OutContentSize)
		{
			*OutContentSize = CachedContents ? CachedContents->Num() : 0;
		}

		return !!CachedContents;
	}