Add scancode and virtual key and fix some sdl stuff on Windows

src/Nazara/Renderer/Context.cpp

@@ -14,7 +14,6 @@
 
 #if defined(NAZARA_PLATFORM_SDL2)
 	#include <Nazara/Renderer/SDL2/ContextImpl.hpp>
-	#define CALLBACK
 #elif defined(NAZARA_PLATFORM_WINDOWS)
 	#include <Nazara/Renderer/Win32/ContextImpl.hpp>
 #elif defined(NAZARA_PLATFORM_GLX)

src/Nazara/Renderer/OpenGL.cpp

@@ -1045,8 +1045,7 @@ namespace Nz
 		glInvalidateBufferData = reinterpret_cast<PFNGLINVALIDATEBUFFERDATAPROC>(LoadEntry("glInvalidateBufferData", false));
 		glVertexAttribLPointer = reinterpret_cast<PFNGLVERTEXATTRIBLPOINTERPROC>(LoadEntry("glVertexAttribLPointer", false));
 
-		#if defined(NAZARA_PLATFORM_SDL2)
-		#elif defined(NAZARA_PLATFORM_WINDOWS)
+		#if defined(NAZARA_PLATFORM_WINDOWS)
 		wglGetExtensionsStringARB = reinterpret_cast<PFNWGLGETEXTENSIONSSTRINGARBPROC>(LoadEntry("wglGetExtensionsStringARB", false));
 		wglGetExtensionsStringEXT = reinterpret_cast<PFNWGLGETEXTENSIONSSTRINGEXTPROC>(LoadEntry("wglGetExtensionsStringEXT", false));
 		wglSwapInterval = reinterpret_cast<PFNWGLSWAPINTERVALEXTPROC>(LoadEntry("wglSwapIntervalEXT", false));
@@ -1064,7 +1063,7 @@ namespace Nz
 				NazaraWarning("Failed to load extension system");
 		}
 
-		#ifdef NAZARA_PLATFORM_WINDOWS
+		#if defined(NAZARA_PLATFORM_WINDOWS) && !defined(NAZARA_PLATFORM_SDL2)
 		{
 			bool loaded;
 			if (wglGetExtensionsStringARB)
@@ -1247,7 +1246,11 @@ namespace Nz
 
 	bool OpenGL::IsSupported(const String& string)
 	{
+#ifdef NAZARA_PLATFORM_SDL2
+		return SDL_GL_ExtensionSupported(string.GetConstBuffer());
+#else
 		return s_openGLextensionSet.find(string) != s_openGLextensionSet.end();
+#endif
 	}
 
 	void OpenGL::SetBuffer(BufferType type, GLuint id)
@@ -2302,8 +2305,7 @@ namespace Nz
 	PFNGLVERTEXATTRIBLPOINTERPROC glVertexAttribLPointer     = nullptr;
 	PFNGLVIEWPORTPROC glViewport                 = nullptr;
 
-#if defined(NAZARA_PLATFORM_SDL2)
-#elif defined(NAZARA_PLATFORM_WINDOWS)
+#if defined(NAZARA_PLATFORM_WINDOWS)
 	PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormat       = nullptr;
 	PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribs    = nullptr;
 	PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB  = nullptr;

src/Nazara/Renderer/SDL2/ContextImpl.cpp

@@ -4,7 +4,6 @@
 
 // Code inspiré de NeHe (Lesson1) et de la SFML par Laurent Gomila
 
-#include <cstring>
 #include <Nazara/Core/CallOnExit.hpp>
 #include <Nazara/Core/Error.hpp>
 #include <Nazara/Core/LockGuard.hpp>
@@ -13,6 +12,9 @@
 #include <Nazara/Renderer/Debug.hpp>
 #include <Nazara/Renderer/OpenGL.hpp>
 #include <Nazara/Renderer/SDL2/ContextImpl.hpp>
+#include <array>
+#include <cstring>
+
 namespace Nz
 {
 	ContextImpl::ContextImpl()