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annotate src/video/xbios/SDL_xbios_blowup.h @ 4347:38f22ed3a433 SDL-1.2

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Option to fix bug #851 For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 17 Oct 2009 06:55:17 +0000
parents 05c9e942cc46
children
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 #include "SDL_config.h"
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23
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24 /*
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25 Blowup extension definitions
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26
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27 Patrice Mandin
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28 */
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29
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30 #ifndef _SDL_xbios_blowup_h
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31 #define _SDL_xbios_blowup_h
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32
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33 #include "SDL_xbios.h"
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34
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35 /*--- Types ---*/
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36
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37 typedef struct {
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38 /* 64 bytes */
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39 unsigned short enabled; /* Extended mode enabled ? 0=yes, <>0=no */
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40 unsigned short dummy10[6];
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41 unsigned short registers_0E; /* value for register 0xffff820e */
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42 unsigned short registers_10; /* value for register 0xffff8210 */
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43 unsigned short dummy11[23];
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44
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45 /* 64 bytes */
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46 unsigned short width; /* width-1 */
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47 unsigned short height; /* height-1 */
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48 unsigned short dummy20;
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49 unsigned long screensize; /* screensize in bytes */
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50 unsigned short dummy21[8];
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51 unsigned short virtual; /* Virtual screen ? */
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52 unsigned short virwidth; /* Virtual screen width */
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53 unsigned short virheight; /* Virtual screen height */
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54
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55 unsigned short dummy22;
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56 unsigned short monitor; /* Monitor defined for this mode */
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57 unsigned short extension; /* Extended mode defined ? 0=yes, 1=no */
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58 unsigned short dummy23[13];
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59
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60 /* 64 bytes */
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61 unsigned short dummy30;
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62 unsigned short registers_82[6]; /* values for registers 0xffff8282-8c */
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63 unsigned short dummy31[9];
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64
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65 unsigned short dummy32;
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66 unsigned short registers_A2[6]; /* values for registers 0xffff82a2-ac */
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67 unsigned short dummy33[9];
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68
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69 /* 64 bytes */
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70 unsigned short registers_C0; /* value for register 0xffff82c0 */
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71 unsigned short registers_C2; /* value for register 0xffff82c2 */
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72 unsigned short dummy40[30];
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73 } __attribute__((packed)) blow_mode_t;
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74
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75 typedef struct {
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76 blow_mode_t blowup_modes[10];
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77 unsigned char num_mode[6];
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78 unsigned long dummy;
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79 unsigned short montype;
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80 } __attribute__((packed)) blow_cookie_t;
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81
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82 /*--- Functions prototypes ---*/
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83
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84 void SDL_XBIOS_ListBlowupModes(_THIS, int actually_add, blow_cookie_t *cookie_blow);
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85
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86 #endif /* _SDL_xbios_blowup_h */