1 files changed, 86 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.12/src/video/xbios/SDL_xbios_sb3.c b/distrib/sdl-1.2.12/src/video/xbios/SDL_xbios_sb3.c
new file mode 100644
index 0000000..bcd610a
--- /dev/null
+++ b/distrib/sdl-1.2.12/src/video/xbios/SDL_xbios_sb3.c
@@ -0,0 +1,86 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2004 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+/*
+	ScreenBlaster 3 functions
+
+	Patrice Mandin
+*/
+
+/*--- Includes ---*/
+
+#include "SDL_stdinc.h"
+#include "SDL_xbios.h"
+#include "SDL_xbios_sb3.h"
+
+/*--- Defines ---*/
+
+const int SDL_XBIOS_scpn_planes_device[]={
+	SCPN_DEV_1BPP,
+	SCPN_DEV_4BPP,
+	SCPN_DEV_8BPP,
+	SCPN_DEV_16BPP,
+	SCPN_DEV_2BPP,
+	SCPN_DEV_4BPP,
+	SCPN_DEV_1BPP
+};
+
+/*--- Functions ---*/
+
+int SDL_XBIOS_SB3Usable(scpn_cookie_t *cookie_scpn)
+{
+	scpn_screeninfo_t *scrinfo;
+	int bpp;
+
+	/* Check if current SB3 mode is usable, i.e. 8 or 16bpp */
+	scrinfo = cookie_scpn->screen_info;
+	bpp = 1<<(SDL_XBIOS_scpn_planes_device[scrinfo->device]);
+
+	if ((bpp==8) || (bpp==16)) {
+		return 1;
+	}
+
+	return 0;
+}
+
+void SDL_XBIOS_SB3Init(_THIS, scpn_cookie_t *cookie_scpn)
+{
+	scpn_screeninfo_t *scrinfo;
+
+	/* SB3 prevent changing video modes, we can only use current one */
+	if (XBIOS_modelist) {
+		SDL_free(XBIOS_modelist);
+		XBIOS_nummodes = 0;
+		XBIOS_modelist = NULL;
+	}
+
+	scrinfo = cookie_scpn->screen_info;
+	scrinfo->h_pos = scrinfo->v_pos = 0;
+
+	SDL_XBIOS_AddMode(this,
+		-1,
+		scrinfo->virtual_width, scrinfo->virtual_height,
+		1<<(SDL_XBIOS_scpn_planes_device[scrinfo->device]),
+		SDL_FALSE
+	);
+}