Set hardware surface video mode for the UX and for game runs with no

hardware scaling.
This looks like prevent screen from getting bad (flickering colors) on
some devices as (LDKV, RG350M/V).
Also set triple buffer for the UX to avoid screen flickering.

src/sdl-dingux/gui_main.cpp

@@ -1763,7 +1763,11 @@ void ss_prog_run(void)
 						SDL_InitSubSystem(SDL_INIT_VIDEO);
 					}
 
+#ifdef DEVICE_GCW0
+					gui_screen = SDL_SetVideoMode(320, 240, 16, SDL_HWSURFACE|SDL_TRIPLEBUF);
+#else
 					gui_screen = SDL_SetVideoMode(320, 240, 16, SDL_SWSURFACE);
+#endif
 					SDL_ShowCursor(0);
 
 					prep_bg();
@@ -2215,7 +2219,11 @@ void GuiRun()
 	use_language_pack = gui_load_language_pack();
 	set_language();
 
+#ifdef DEVICE_GCW0
+	gui_screen = SDL_SetVideoMode(GUI_SCREEN_W, GUI_SCREEN_H, 16, SDL_HWSURFACE | SDL_TRIPLEBUF);
+#else
 	gui_screen = SDL_SetVideoMode(GUI_SCREEN_W, GUI_SCREEN_H, 16, SDL_SWSURFACE);
+#endif
 
 	SDL_ShowCursor(0);
 	SDL_JoystickOpen(0);

src/sdl-dingux/sdl_video.cpp

@@ -1932,7 +1932,11 @@ int VideoInit()
 #else
 		SDL_DOUBLEBUF
 #endif
+#ifdef DEVICE_GCW0
+		) : SDL_HWSURFACE);
+#else
 		) : SDL_SWSURFACE);
+#endif
 
 	if(!(SDL_WasInit(SDL_INIT_VIDEO) & SDL_INIT_VIDEO)) {
 		SDL_InitSubSystem(SDL_INIT_VIDEO);
@@ -2209,7 +2213,11 @@ int VideoInitForce320x240()
 		SDL_InitSubSystem(SDL_INIT_VIDEO);
 	}
 
+#ifdef DEVICE_GCW0
+	screen = SDL_SetVideoMode(320, 240, 16, SDL_HWSURFACE|SDL_TRIPLEBUF);
+#else
 	screen = SDL_SetVideoMode(320, 240, 16, SDL_SWSURFACE);
+#endif
 	SDL_ShowCursor(SDL_DISABLE);
 
 	if(!screen) {