Split shader generation to a new module

src/Nazara/Shader/Shader.cpp

@@ -0,0 +1,70 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Shader generator"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Shader/Shader.hpp>
+#include <Nazara/Core/CallOnExit.hpp>
+#include <Nazara/Core/Core.hpp>
+#include <Nazara/Core/Error.hpp>
+#include <Nazara/Core/Log.hpp>
+#include <Nazara/Shader/Config.hpp>
+#include <Nazara/Shader/Debug.hpp>
+
+namespace Nz
+{
+	bool Shader::Initialize()
+	{
+		if (s_moduleReferenceCounter > 0)
+		{
+			s_moduleReferenceCounter++;
+			return true; // Already initialized
+		}
+
+		// Initialize module dependencies
+		if (!Core::Initialize())
+		{
+			NazaraError("Failed to initialize shader module");
+			return false;
+		}
+
+		s_moduleReferenceCounter++;
+
+		CallOnExit onExit(Shader::Uninitialize);
+
+		// Initialize module here
+
+		onExit.Reset();
+
+		NazaraNotice("Initialized: Shader module");
+		return true;
+	}
+
+	bool Shader::IsInitialized()
+	{
+		return s_moduleReferenceCounter != 0;
+	}
+
+	void Shader::Uninitialize()
+	{
+		if (s_moduleReferenceCounter != 1)
+		{
+			// Either the module is not initialized, either it was initialized multiple times
+			if (s_moduleReferenceCounter > 1)
+				s_moduleReferenceCounter--;
+
+			return;
+		}
+
+		s_moduleReferenceCounter = 0;
+
+		// Uninitialize module here
+
+		NazaraNotice("Uninitialized: Shader module");
+
+		// Free module dependencies
+		Core::Uninitialize();
+	}
+
+	unsigned int Shader::s_moduleReferenceCounter = 0;	
+}
+