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annotate src/video/xbios/SDL_xbios.h @ 2079:1ed2155b7ee4

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From: Torsten Giebl Subject: ALLOCA Patch for SDL-1.2 Newsgroups: gmane.comp.lib.sdl Date: 2006-10-24 00:31:16 GMT Hello ! As alloca.h is not available on CYGWIN and MinGW32 it should not be checked there or it should be checked with -mno-cygwin using. I am a total configure.in newbie, but i found the way that things are handled in configure.in pretty bad for the case CYGWIN with MinGW Mode or not. Maybe this is not possible but i would like to have a way to detect at the start for example CYGWIN and then add. ask if configure was called with --enable-cygwin for example. --enable-cygwin should be optional and disabled by default as we want to have MinGW Mode by default. Only if the user wants it he should be able to use it. Then the whole configure.in would get add. questions okay the system is CYGWIN with or without MinGW Mode. The alloca.h thing for example is only available under CYGWIN ( without MinGW Mode ). CU
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 01 Dec 2006 20:25:03 +0000
parents 790726541708
children 2c835d58faad
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 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 Lesser 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 Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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 #ifndef _SDL_xbios_h
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25 #define _SDL_xbios_h
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26
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27 #include "SDL_stdinc.h"
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28 #include "../SDL_sysvideo.h"
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29
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30 typedef struct SDL_VideoData
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31 {
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32 long cookie_vdo; /* _VDO cookie */
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33
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34 Uint16 old_modecode; /* Current video mode */
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35 void *old_vbase; /* Current pointer to video RAM */
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36 int old_numcol; /* Number of colors in saved palette */
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37 Uint32 old_palette[256]; /* Buffer to save current palette */
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38
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39 #if 0
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40 int old_video_mode; /* Old video mode before entering SDL */
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41 void *old_video_base; /* Old pointer to screen buffer */
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42 void *old_palette; /* Old palette */
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43 Uint32 old_num_colors; /* Nb of colors in saved palette */
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44 int num_modes; /* Number of xbios video modes */
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45 xbiosmode_t *mode_list; /* List of xbios video modes */
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46
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47 void *screens[2]; /* Pointers to aligned screen buffer */
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48 void *screensmem[2]; /* Pointers to screen buffer */
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49 void *shadowscreen; /* Shadow screen for c2p conversion */
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50 int doubleline; /* Double line mode ? */
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51 int frame_number; /* Number of frame for double buffer */
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52 int pitch; /* Destination line width for C2P */
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53 int width, height; /* Screen size for centered C2P */
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54
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55 SDL_bool centscreen; /* Centscreen extension present ? */
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56
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57 SDL_Rect *SDL_modelist[NUM_MODELISTS][SDL_NUMMODES + 1];
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58 xbiosmode_t *videomodes[NUM_MODELISTS][SDL_NUMMODES + 1];
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59 #endif
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60 } SDL_VideoData;
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62 /* _VDO cookie values */
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63 enum
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64 {
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65 VDO_ST = 0,
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66 VDO_STE,
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67 VDO_TT,
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68 VDO_F30
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69 };
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71 /* Monitor types */
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72 enum
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73 {
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74 MONITOR_MONO = 0,
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75 MONITOR_TV,
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76 MONITOR_VGA,
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77 MONITOR_RGB
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78 };
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79
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80 /* EgetShift masks */
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81 #define ES_BANK 0x000f
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82 #define ES_MODE 0x0700
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83 #define ES_GRAY 0x1000
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84 #define ES_SMEAR 0x8000
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85
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86 /* TT shifter modes */
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87 #define ST_LOW 0x0000
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88 #define ST_MED 0x0100
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89 #define ST_HIGH 0x0200
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90 #define TT_LOW 0x0700
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91 #define TT_MED 0x0300
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92 #define TT_HIGH 0x0600
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93
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94 #endif /* _SDL_xbios_h */
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95 /* vi: set ts=4 sw=4 expandtab: */