| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Library General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Library General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Library General Public |
| 16 | License along with this library; if not, write to the Free |
| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | /* |
| 25 | ScreenBlaster 3 definitions |
| 26 | |
| 27 | Patrice Mandin |
| 28 | */ |
| 29 | |
| 30 | #ifndef _SDL_xbios_sb3_h_ |
| 31 | #define _SDL_xbios_sb3_h_ |
| 32 | |
| 33 | /*--- Defines ---*/ |
| 34 | |
| 35 | #ifndef C_SCPN |
| 36 | #define C_SCPN 0x5343504EL |
| 37 | #endif |
| 38 | |
| 39 | #define SCPN_DEV_1BPP 0 |
| 40 | #define SCPN_DEV_2BPP 1 |
| 41 | #define SCPN_DEV_4BPP 2 |
| 42 | #define SCPN_DEV_8BPP 3 |
| 43 | #define SCPN_DEV_16BPP 4 |
| 44 | |
| 45 | extern const int SDL_XBIOS_scpn_planes_device[]; |
| 46 | |
| 47 | /*--- Types ---*/ |
| 48 | |
| 49 | typedef struct { |
| 50 | unsigned short virtual_width; /* Virtual screen width */ |
| 51 | unsigned short virtual_height; /* Virtual screen height */ |
| 52 | unsigned short visible_width; /* Visible width */ |
| 53 | unsigned short visible_height; /* Visible height */ |
| 54 | unsigned short h_pos; /* Horizontal position in virtual screen */ |
| 55 | unsigned short v_pos; /* Vertical position in virtual screen */ |
| 56 | unsigned short dummy; |
| 57 | unsigned long size; /* Size of screen in bytes */ |
| 58 | unsigned short device; /* Device number to find planes = getRez() */ |
| 59 | /* = Index in scpn_planes_device[] */ |
| 60 | } __attribute__((packed)) scpn_screeninfo_t; |
| 61 | |
| 62 | typedef struct { |
| 63 | unsigned long magic; /* just a BRA assembler jump */ |
| 64 | unsigned short version; |
| 65 | void *dummy1; |
| 66 | unsigned short ptsout0_1; |
| 67 | unsigned short ptsout0_2; |
| 68 | unsigned short dummy3; |
| 69 | unsigned char date[8]; /* Date of program build */ |
| 70 | unsigned char asm_string[30]; /* 10 times the 'ASM' string */ |
| 71 | unsigned short dummy4; |
| 72 | scpn_screeninfo_t *screen_info; |
| 73 | unsigned short dummy6; |
| 74 | } __attribute__((packed)) scpn_cookie_t; |
| 75 | |
| 76 | /*--- Function prototypes ---*/ |
| 77 | |
| 78 | int SDL_XBIOS_SB3Usable(scpn_cookie_t *cookie_scpn); |
| 79 | |
| 80 | void SDL_XBIOS_ListSB3Modes(_THIS, int actually_add, scpn_cookie_t *cookie_scpn); |
| 81 | |
| 82 | #endif /* _SDL_xbios_sb3_h_ */ |