Graphics/SpriteLibrary: Fix missing initialization/uninitialization (fixes crash at exit)

Former-commit-id: c7bbd781d163a8456f1fadd0f71451adc5a1bd1a

include/Nazara/Graphics/Sprite.hpp

@@ -23,6 +23,9 @@ namespace Nz
 
 	class NAZARA_GRAPHICS_API Sprite : public InstancedRenderable
 	{
+		friend SpriteLibrary;
+		friend class Graphics;
+
 		public:
 			inline Sprite();
 			inline Sprite(MaterialRef material);
@@ -57,6 +60,9 @@ namespace Nz
 			void MakeBoundingVolume() const override;
 			void UpdateData(InstanceData* instanceData) const override;
 
+			static bool Initialize();
+			static void Uninitialize();
+
 			Color m_color;
 			MaterialRef m_material;
 			Rectf m_textureCoords;

src/Nazara/Graphics/Graphics.cpp

@@ -18,6 +18,7 @@
 #include <Nazara/Graphics/RenderTechniques.hpp>
 #include <Nazara/Graphics/SkinningManager.hpp>
 #include <Nazara/Graphics/SkyboxBackground.hpp>
+#include <Nazara/Graphics/Sprite.hpp>
 #include <Nazara/Graphics/Formats/MeshLoader.hpp>
 #include <Nazara/Graphics/Formats/OBJLoader.hpp>
 #include <Nazara/Graphics/Formats/TextureLoader.hpp>
@@ -89,6 +90,12 @@ namespace Nz
 			return false;
 		}
 
+		if (!Sprite::Initialize())
+		{
+			NazaraError("Failed to initialize sprites");
+			return false;
+		}
+
 		// Loaders
 		Loaders::RegisterOBJ();
 
@@ -181,6 +188,7 @@ namespace Nz
 		ParticleController::Uninitialize();
 		Material::Uninitialize();
 		SkyboxBackground::Uninitialize();
+		Sprite::Uninitialize();
 
 		NazaraNotice("Uninitialized: Graphics module");
 

src/Nazara/Graphics/Sprite.cpp

@@ -51,5 +51,21 @@ namespace Nz
 		*texCoordPtr++ = m_textureCoords.GetCorner(RectCorner_RightBottom);
 	}
 
+	bool Sprite::Initialize()
+	{
+		if (!SpriteLibrary::Initialize())
+		{
+			NazaraError("Failed to initialise library");
+			return false;
+		}
+
+		return true;
+	}
+
+	void Sprite::Uninitialize()
+	{
+		SpriteLibrary::Uninitialize();
+	}
+
 	SpriteLibrary::LibraryMap Sprite::s_library;
 }