Fix SDL2 build errors

sc2/src/libs/graphics/sdl/scalers.c

@@ -213,7 +213,7 @@ Scale_PrepPlatform (int flags, const SDL_PixelFormat* fmt)
 	// first match wins
 	// add better platform techs to the top
 #ifdef MMX_ASM
-	if ( (!force_platform && (SDL_HasSSE () || SDL_HasMMXExt ()))
+	if ( (!force_platform && (SDL_HasSSE () || SDL_HasMMX ()))
 			|| force_platform == PLATFORM_SSE)
 	{
 		log_add (log_Info, "Screen scalers are using SSE/MMX-Ext/MMX code");

sc2/src/libs/graphics/sdl/sdl2_pure.c

@@ -260,6 +260,17 @@ TFB_Pure_InitGraphics (int driver, int flags, int width, int height)
 	return 0;
 }
 
+void
+TFB_Pure_UninitGraphics (void)
+{
+	if (renderer) {
+		SDL_DestroyRenderer (renderer);
+	}
+	if (window) {
+		SDL_DestroyWindow (window);
+	}
+}
+
 static void
 TFB_SDL2_UploadTransitionScreen (void)
 {

sc2/src/libs/graphics/sdl/sdl_common.c

@@ -50,61 +50,13 @@ TFB_GRAPHICS_BACKEND *graphics_backend = NULL;
 volatile int QuitPosted = 0;
 volatile int GameActive = 1; // Track the SDL_ACTIVEEVENT state SDL_APPACTIVE
 
-int
-TFB_ReInitGraphics (int driver, int flags, int width, int height)
-{
-	int result;
-	int togglefullscreen = 0;
-	char caption[200];
-
-	if (GfxFlags == (flags ^ TFB_GFXFLAGS_FULLSCREEN) &&
-			driver == GraphicsDriver &&
-			width == ScreenWidthActual && height == ScreenHeightActual)
-	{
-		togglefullscreen = 1;
-	}
-
-	GfxFlags = flags;
-
-	if (driver == TFB_GFXDRIVER_SDL_OPENGL)
-	{
-#ifdef HAVE_OPENGL
-		result = TFB_GL_ConfigureVideo (driver, flags, width, height,
-				togglefullscreen);
-#else
-		driver = TFB_GFXDRIVER_SDL_PURE;
-		log_add (log_Warning, "OpenGL support not compiled in,"
-				" so using pure SDL driver");
-		result = TFB_Pure_ConfigureVideo (driver, flags, width, height,
-				togglefullscreen);
-#endif
-	}
-	else
-	{
-		result = TFB_Pure_ConfigureVideo (driver, flags, width, height,
-				togglefullscreen);
-	}
-
-	sprintf (caption, "The Ur-Quan Masters v%d.%d.%d%s",
-			UQM_MAJOR_VERSION, UQM_MINOR_VERSION,
-			UQM_PATCH_VERSION, UQM_EXTRA_VERSION);
-	SDL_WM_SetCaption (caption, NULL);
-
-	if (flags & TFB_GFXFLAGS_FULLSCREEN)
-		SDL_ShowCursor (SDL_DISABLE);
-	else
-		SDL_ShowCursor (SDL_ENABLE);
-
-	return result;
-}
-
 int
 TFB_InitGraphics (int driver, int flags, int width, int height)
 {
-	int i, result;
+	int result, i;
 	char caption[200];
 
-	/* Null out screen pointers for the first time */
+	/* Null out screen pointers the first time */
 	for (i = 0; i < TFB_GFX_NUMSCREENS; i++)
 	{
 		SDL_Screens[i] = NULL;

sc2/src/libs/input/sdl/input.c

@@ -220,19 +220,13 @@ TFB_SetInputVectors (volatile int menu[], int num_menu_, volatile int flight[],
 	num_flight = num_flight_;
 }
 
+#ifdef HAVE_JOYSTICK
+
 static void
 initJoystick (void)
 {
 	int nJoysticks;
 
-#if SDL_MAJOR_VERSION == 1
-	SDL_EnableUNICODE(1);
-	(void)SDL_GetKeyState (&num_keys);
-	kbdstate = (int *)HMalloc (sizeof (int) * (num_keys + 1));
-#endif
-	
-
-#ifdef HAVE_JOYSTICK
 	if ((SDL_InitSubSystem(SDL_INIT_JOYSTICK)) == -1)
 	{
 		log_add (log_Fatal, "Couldn't initialize joystick subsystem: %s",
@@ -269,14 +263,15 @@ TFB_InitInput (int driver, int flags)
 	(void)driver;
 	(void)flags;
 
+#if SDL_MAJOR_VERSION == 1
 	SDL_EnableUNICODE(1);
 	(void)SDL_GetKeyState (&num_keys);
 	kbdstate = (int *)HMalloc (sizeof (int) * (num_keys + 1));
-	
+#endif
 
 #ifdef HAVE_JOYSTICK	
 	initJoystick ();
-#endif /* HAVE_JOYSTICK */
+#endif
 
 	in_character_mode = FALSE;
 	resetKeyboardState ();