From ef4847a370d3d2a772d38c3f1a378c3e9b90fe1c Mon Sep 17 00:00:00 2001
From: Patrice Mandin <patmandin@gmail.com>
Date: Mon, 18 Jul 2005 13:42:57 +0000
Subject: [PATCH] Set hardware palette to black in True Colour mode

---
 src/video/xbios/SDL_xbios.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/video/xbios/SDL_xbios.c b/src/video/xbios/SDL_xbios.c
index 6985de5fc..640e09fd1 100644
--- a/src/video/xbios/SDL_xbios.c
+++ b/src/video/xbios/SDL_xbios.c
@@ -681,6 +681,11 @@ static SDL_Surface *XBIOS_SetVideoMode(_THIS, SDL_Surface *current,
 				Vsetmode(new_video_mode->number);
 			}
 #endif
+			/* Set hardware palette to black in True Colour */
+			if (new_depth == 16) {
+				memset(F30_palette, 0, sizeof(F30_palette));
+				VsetRGB(0,256,F30_palette);
+			}
 			break;
 	}