| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2006 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| #include "SDL_config.h" |
| |
| #ifndef _SDL_xbios_h |
| #define _SDL_xbios_h |
| |
| #include "SDL_stdinc.h" |
| #include "../SDL_sysvideo.h" |
| |
| /* Hidden "this" pointer for the video functions */ |
| #define _THIS SDL_VideoDevice *this |
| |
| /* TT video modes: 2 |
| Falcon RVB: 16 (could be *2 by adding PAL/NTSC modes) |
| Falcon VGA: 6 |
| ST low: 1 |
| */ |
| #define SDL_NUMMODES 16 |
| |
| typedef struct |
| { |
| Uint16 number; /* Video mode number */ |
| Uint16 width; /* Size */ |
| Uint16 height; |
| Uint16 depth; /* bits per plane */ |
| SDL_bool doubleline; /* Double the lines ? */ |
| } xbiosmode_t; |
| |
| /* Private display data */ |
| #define NUM_MODELISTS 2 /* 8 and 16 bits-per-pixel */ |
| |
| struct SDL_PrivateVideoData { |
| long cookie_vdo; |
| int old_video_mode; /* Old video mode before entering SDL */ |
| void *old_video_base; /* Old pointer to screen buffer */ |
| void *old_palette; /* Old palette */ |
| Uint32 old_num_colors; /* Nb of colors in saved palette */ |
| int num_modes; /* Number of xbios video modes */ |
| xbiosmode_t *mode_list; /* List of xbios video modes */ |
| |
| void *screens[2]; /* Pointers to aligned screen buffer */ |
| void *screensmem[2]; /* Pointers to screen buffer */ |
| void *shadowscreen; /* Shadow screen for c2p conversion */ |
| int doubleline; /* Double line mode ? */ |
| int frame_number; /* Number of frame for double buffer */ |
| int pitch; /* Destination line width for C2P */ |
| int width, height; /* Screen size for centered C2P */ |
| |
| SDL_bool centscreen; /* Centscreen extension present ? */ |
| |
| SDL_Rect *SDL_modelist[NUM_MODELISTS][SDL_NUMMODES+1]; |
| xbiosmode_t *videomodes[NUM_MODELISTS][SDL_NUMMODES+1]; |
| }; |
| |
| /* _VDO cookie values */ |
| enum { |
| VDO_ST=0, |
| VDO_STE, |
| VDO_TT, |
| VDO_F30 |
| }; |
| |
| /* Monitor types */ |
| enum { |
| MONITOR_MONO=0, |
| MONITOR_TV, |
| MONITOR_VGA, |
| MONITOR_RGB |
| }; |
| |
| /* EgetShift masks */ |
| #define ES_BANK 0x000f |
| #define ES_MODE 0x0700 |
| #define ES_GRAY 0x1000 |
| #define ES_SMEAR 0x8000 |
| |
| /* TT shifter modes */ |
| #define ST_LOW 0x0000 |
| #define ST_MED 0x0100 |
| #define ST_HIGH 0x0200 |
| #define TT_LOW 0x0700 |
| #define TT_MED 0x0300 |
| #define TT_HIGH 0x0600 |
| |
| /* Hidden structure -> variables names */ |
| #define SDL_modelist (this->hidden->SDL_modelist) |
| #define XBIOS_mutex (this->hidden->mutex) |
| #define XBIOS_cvdo (this->hidden->cookie_vdo) |
| #define XBIOS_oldpalette (this->hidden->old_palette) |
| #define XBIOS_oldnumcol (this->hidden->old_num_colors) |
| #define XBIOS_oldvbase (this->hidden->old_video_base) |
| #define XBIOS_oldvmode (this->hidden->old_video_mode) |
| #define XBIOS_nummodes (this->hidden->num_modes) |
| #define XBIOS_modelist (this->hidden->mode_list) |
| #define XBIOS_screens (this->hidden->screens) |
| #define XBIOS_screensmem (this->hidden->screensmem) |
| #define XBIOS_shadowscreen (this->hidden->shadowscreen) |
| #define XBIOS_videomodes (this->hidden->videomodes) |
| #define XBIOS_doubleline (this->hidden->doubleline) |
| #define XBIOS_fbnum (this->hidden->frame_number) |
| #define XBIOS_pitch (this->hidden->pitch) |
| #define XBIOS_width (this->hidden->width) |
| #define XBIOS_height (this->hidden->height) |
| #define XBIOS_centscreen (this->hidden->centscreen) |
| |
| /*--- Functions prototypes ---*/ |
| |
| void SDL_XBIOS_AddMode(_THIS, Uint16 modecode, Uint16 width, Uint16 height, |
| Uint16 depth, SDL_bool flags); |
| |
| #endif /* _SDL_xbios_h */ |