Renderer/Texture: Add Copy method (wip)

include/Nazara/OpenGLRenderer/OpenGLTexture.hpp

@@ -23,6 +23,8 @@ namespace Nz
 			OpenGLTexture(OpenGLTexture&&) = delete;
 			~OpenGLTexture() = default;
 
+			bool Copy(const Texture& source, const Boxui& srcBox, const Vector3ui& dstPos) override;
+
 			PixelFormat GetFormat() const override;
 			UInt8 GetLevelCount() const override;
 			Vector3ui GetSize(UInt8 level = 0) const override;

include/Nazara/OpenGLRenderer/Wrapper/CoreFunctions.hpp

@@ -167,6 +167,8 @@ typedef void (GL_APIENTRYP PFNGLSPECIALIZESHADERARBPROC) (GLuint shader, const G
 	cb(glVertexAttribPointer, PFNGLVERTEXATTRIBPOINTERPROC) \
 	cb(glViewport, PFNGLVIEWPORTPROC) \
 	\
+	extCb(glCopyImageSubData, PFNGLCOPYIMAGESUBDATAPROC) \
+	\
 	extCb(glDebugMessageCallback, PFNGLDEBUGMESSAGECALLBACKPROC) \
 	\
 	extCb(glPolygonMode, PFNGLPOLYGONMODEPROC) \