From e5206d435042b03c61ab1bf9488b843221d73bcb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pedro=20Luis=20Rodr=C3=ADguez=20Gonz=C3=A1lez?=
 <pl.rguez@gmail.com>
Date: Wed, 11 Aug 2021 21:32:02 +0200
Subject: [PATCH] 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  | 8 ++++++++
 src/sdl-dingux/sdl_video.cpp | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/sdl-dingux/gui_main.cpp b/src/sdl-dingux/gui_main.cpp
index a09274d8d..70e09e685 100644
--- a/src/sdl-dingux/gui_main.cpp
+++ b/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);
diff --git a/src/sdl-dingux/sdl_video.cpp b/src/sdl-dingux/sdl_video.cpp
index 4c55c0c1c..bd5aeff67 100644
--- a/src/sdl-dingux/sdl_video.cpp
+++ b/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) {