(svn r26522) -Add: A config-file-only setting to disable usage of 8bpp video modes.

-Remove: [win32] fullscreen_bpp setting, which is replaced by above setting.
-Change: Disable usage of 8bpp blitters and video modes by default. Many modern OS and hardware cause issues with those.

src/table/misc_settings.ini

@@ -9,12 +9,15 @@
 [pre-amble]
 extern char _config_language_file[MAX_PATH];
 
+static const char *_support8bppmodes = "no|system|hardware";
+
 static const SettingDescGlobVarList _misc_settings[] = {
 [post-amble]
 };
 [templates]
 SDTG_LIST  =  SDTG_LIST($name, $type, $length, $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat),
 SDTG_MMANY = SDTG_MMANY($name, $type,          $flags, $guiflags, $var, $def,                        $full, $str, $strhelp, $strval, $proc, $from, $to, $cat),
+SDTG_OMANY = SDTG_OMANY($name, $type,          $flags, $guiflags, $var, $def,       $max,            $full, $str, $strhelp, $strval, $proc, $from, $to, $cat),
 SDTG_STR   =   SDTG_STR($name, $type,          $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat),
 SDTG_BOOL  =  SDTG_BOOL($name,                 $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat),
 SDTG_VAR   =   SDTG_VAR($name, $type,          $flags, $guiflags, $var, $def, $min, $max, $interval,        $str, $strhelp, $strval, $proc, $from, $to, $cat),
@@ -48,6 +51,15 @@ var      = _fullscreen
 def      = false
 cat      = SC_BASIC
 
+[SDTG_OMANY]
+name     = ""support8bpp""
+type     = SLE_UINT8
+var      = _support8bpp
+def      = 0
+max      = 2
+full     = _support8bppmodes
+cat      = SC_BASIC
+
 [SDTG_STR]
 name     = ""graphicsset""
 type     = SLE_STRQ

src/table/win32_settings.ini

@@ -10,7 +10,7 @@
 /* win32_v.cpp only settings */
 #if defined(WIN32) && !defined(DEDICATED)
 extern bool _force_full_redraw, _window_maximize;
-extern uint _display_hz, _fullscreen_bpp;
+extern uint _display_hz;
 
 static const SettingDescGlobVarList _win32_settings[] = {
 [post-amble]
@@ -51,15 +51,6 @@ var      = _force_full_redraw
 def      = false
 cat      = SC_EXPERT
 
-[SDTG_VAR]
-name     = ""fullscreen_bpp""
-type     = SLE_UINT
-var      = _fullscreen_bpp
-def      = 8
-min      = 8
-max      = 32
-cat      = SC_EXPERT
-
 [SDTG_BOOL]
 name     = ""window_maximize""
 var      = _window_maximize