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annotate src/video/xbios/SDL_xbios_sb3.h @ 1266:a7bea6db3c3e

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SDL_GetVideoMode, part 3: pixel count compare was failing when only 1 video mode was present
author Patrice Mandin <patmandin@gmail.com>
date Wed, 25 Jan 2006 18:11:56 +0000
parents c6ed27c7d47d
children d910939febfa
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /*
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24 ScreenBlaster 3 definitions
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25
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26 Patrice Mandin
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27 */
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28
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29 #ifndef _SDL_xbios_sb3_h_
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30 #define _SDL_xbios_sb3_h_
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31
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32 /*--- Defines ---*/
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33
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34 #ifndef C_SCPN
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35 #define C_SCPN 0x5343504EL
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36 #endif
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37
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38 #define SCPN_DEV_1BPP 0
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39 #define SCPN_DEV_2BPP 1
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40 #define SCPN_DEV_4BPP 2
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41 #define SCPN_DEV_8BPP 3
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42 #define SCPN_DEV_16BPP 4
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43
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44 extern const int SDL_XBIOS_scpn_planes_device[];
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45
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46 /*--- Types ---*/
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47
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48 typedef struct {
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49 unsigned short virtual_width; /* Virtual screen width */
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50 unsigned short virtual_height; /* Virtual screen height */
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51 unsigned short visible_width; /* Visible width */
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52 unsigned short visible_height; /* Visible height */
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53 unsigned short h_pos; /* Horizontal position in virtual screen */
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54 unsigned short v_pos; /* Vertical position in virtual screen */
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55 unsigned short dummy;
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56 unsigned long size; /* Size of screen in bytes */
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57 unsigned short device; /* Device number to find planes = getRez() */
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58 /* = Index in scpn_planes_device[] */
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59 } __attribute__((packed)) scpn_screeninfo_t;
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60
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61 typedef struct {
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62 unsigned long magic; /* just a BRA assembler jump */
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63 unsigned short version;
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64 void *dummy1;
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65 unsigned short ptsout0_1;
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66 unsigned short ptsout0_2;
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67 unsigned short dummy3;
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68 unsigned char date[8]; /* Date of program build */
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69 unsigned char asm_string[30]; /* 10 times the 'ASM' string */
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70 unsigned short dummy4;
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71 scpn_screeninfo_t *screen_info;
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72 unsigned short dummy6;
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73 } __attribute__((packed)) scpn_cookie_t;
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74
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75 /*--- Function prototypes ---*/
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76
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77 int SDL_XBIOS_SB3Usable(scpn_cookie_t *cookie_scpn);
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78
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79 void SDL_XBIOS_SB3Init(_THIS, scpn_cookie_t *cookie_scpn);
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80
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81 #endif /* _SDL_xbios_sb3_h_ */