Mercurial > sdl-ios-xcode

annotate src/video/xbios/SDL_xbios.h @ 4249:429c8dd3175d SDL-1.2

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Fixed bug #713 Don't clamp the mouse coordinates to the video surface size, instead clamp them to the last known window size. This allows users to get the correct mouse coordinates even if they don't call SDL_SetVideoMode() in response to an SDL_VIDEORESIZE event (used as a hack to retain the OpenGL context on Windows and Linux after a window resize)
author Sam Lantinga <slouken@libsdl.org>
date Sun, 27 Sep 2009 05:18:43 +0000
parents 6405314a7c07
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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 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 /* Hidden "this" pointer for the video functions */
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31 #define _THIS SDL_VideoDevice *this
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32
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33 #define XBIOSMODE_DOUBLELINE (1<<0)
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34 #define XBIOSMODE_C2P (1<<1)
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35
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36 typedef struct
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37 {
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38 Uint16 number; /* Video mode number */
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39 Uint16 width; /* Size */
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40 Uint16 height;
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41 Uint16 depth; /* bits per plane */
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42 Uint16 flags;
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43 } xbiosmode_t;
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44
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45 /* Private display data */
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46 #define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */
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47
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48 struct SDL_PrivateVideoData {
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49 long cookie_vdo;
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50 long old_video_mode; /* Old video mode before entering SDL */
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51 void *old_video_base; /* Old pointer to screen buffer */
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52 void *old_palette; /* Old palette */
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53 Uint32 old_num_colors; /* Nb of colors in saved palette */
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54
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55 void *screens[2]; /* Pointers to aligned screen buffer */
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56 void *screensmem[2]; /* Pointers to screen buffer */
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57 void *shadowscreen; /* Shadow screen for c2p conversion */
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58 int frame_number; /* Number of frame for double buffer */
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59 int pitch; /* Destination line width for C2P */
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60
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61 SDL_bool centscreen; /* Centscreen extension present ? */
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62
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63 xbiosmode_t *current; /* Current set mode */
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64 int SDL_nummodes[NUM_MODELISTS];
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65 SDL_Rect **SDL_modelist[NUM_MODELISTS];
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66 xbiosmode_t **SDL_xbiosmode[NUM_MODELISTS];
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67 };
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68
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69 /* _VDO cookie values */
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70 enum {
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71 VDO_ST=0,
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72 VDO_STE,
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73 VDO_TT,
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74 VDO_F30,
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75 VDO_MILAN
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76 };
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77
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78 /* Monitor types */
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79 enum {
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80 MONITOR_MONO=0,
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81 MONITOR_TV,
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82 MONITOR_VGA,
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83 MONITOR_RGB
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84 };
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85
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86 /* EgetShift masks */
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87 #define ES_MODE 0x0700
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88
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89 /* TT shifter modes */
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90 #ifndef ST_LOW
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91 #define ST_LOW 0x0000
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92 #define ST_MED 0x0100
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93 #define ST_HIGH 0x0200
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94 #define TT_LOW 0x0700
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95 #define TT_MED 0x0300
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96 #define TT_HIGH 0x0600
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97 #endif
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98
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99 /* Hidden structure -> variables names */
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100 #define SDL_nummodes (this->hidden->SDL_nummodes)
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101 #define SDL_modelist (this->hidden->SDL_modelist)
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102 #define SDL_xbiosmode (this->hidden->SDL_xbiosmode)
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103 #define XBIOS_mutex (this->hidden->mutex)
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104 #define XBIOS_cvdo (this->hidden->cookie_vdo)
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105 #define XBIOS_oldpalette (this->hidden->old_palette)
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106 #define XBIOS_oldnumcol (this->hidden->old_num_colors)
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107 #define XBIOS_oldvbase (this->hidden->old_video_base)
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108 #define XBIOS_oldvmode (this->hidden->old_video_mode)
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109 #define XBIOS_screens (this->hidden->screens)
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110 #define XBIOS_screensmem (this->hidden->screensmem)
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111 #define XBIOS_shadowscreen (this->hidden->shadowscreen)
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112 #define XBIOS_fbnum (this->hidden->frame_number)
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113 #define XBIOS_pitch (this->hidden->pitch)
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114 #define XBIOS_centscreen (this->hidden->centscreen)
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115 #define XBIOS_current (this->hidden->current)
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116
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117 /*--- Functions prototypes ---*/
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118
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119 void SDL_XBIOS_AddMode(_THIS, int actually_add, const xbiosmode_t *modeinfo);
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120
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121 #endif /* _SDL_xbios_h */