Graphics: Add MaterialPassRegistry

include/Nazara/Graphics/MaterialPassRegistry.inl

@@ -0,0 +1,32 @@
+// Copyright (C) 2017 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Graphics module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Graphics/MaterialPassRegistry.hpp>
+#include <stdexcept>
+#include <Nazara/Graphics/Debug.hpp>
+
+namespace Nz
+{
+	std::size_t MaterialPassRegistry::GetPassIndex(const std::string& passName) const
+	{
+		auto it = m_passIndex.find(passName);
+		if (it == m_passIndex.end())
+			throw std::runtime_error("pass " + passName + " must be registered before being used");
+
+		return it->second;
+	}
+
+	inline std::size_t MaterialPassRegistry::RegisterPass(std::string passName)
+	{
+		if (m_passIndex.find(passName) != m_passIndex.end())
+			throw std::runtime_error("pass " + passName + " is already registered");
+
+		std::size_t passIndex = m_passIndex.size();
+		m_passIndex.emplace(std::move(passName), passIndex);
+
+		return passIndex;
+	}
+}
+
+#include <Nazara/Graphics/DebugOff.hpp>