diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/video/xbios/SDL_xbios_sb3.c')
| -rw-r--r-- | distrib/sdl-1.2.15/src/video/xbios/SDL_xbios_sb3.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/xbios/SDL_xbios_sb3.c b/distrib/sdl-1.2.15/src/video/xbios/SDL_xbios_sb3.c new file mode 100644 index 0000000..8b0ed2c --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/xbios/SDL_xbios_sb3.c @@ -0,0 +1,83 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 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_ListSB3Modes(_THIS, int actually_add, scpn_cookie_t *cookie_scpn) +{ + scpn_screeninfo_t *scrinfo; + xbiosmode_t modeinfo; + + scrinfo = cookie_scpn->screen_info; + if (actually_add) { + scrinfo->h_pos = scrinfo->v_pos = 0; + } + + modeinfo.number = -1; + modeinfo.width = scrinfo->virtual_width; + modeinfo.height = scrinfo->virtual_height; + modeinfo.depth = 1<<(SDL_XBIOS_scpn_planes_device[scrinfo->device]); + modeinfo.flags = (modeinfo.depth == 8 ? XBIOSMODE_C2P : 0); + + SDL_XBIOS_AddMode(this, actually_add, &modeinfo); +} |