Mercurial > sdl-ios-xcode
annotate src/video/xbios/SDL_xbios.h @ 1139:d0ae4dff7208
Altivec blitter for 555 -> 8888 surface, written by me.
--ryan.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Thu, 08 Sep 2005 07:20:59 +0000 |
parents | fba6b67b4d60 |
children | c9b51268668f |
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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 #ifdef SAVE_RCSID |
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24 static char rcsid = |
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25 "@(#) $Id$"; |
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26 #endif |
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27 |
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28 #ifndef _SDL_xbios_h |
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29 #define _SDL_xbios_h |
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30 |
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31 #include "SDL_types.h" |
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32 #include "SDL_sysvideo.h" |
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33 |
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34 /* Hidden "this" pointer for the video functions */ |
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35 #define _THIS SDL_VideoDevice *this |
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36 |
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37 /* TT video modes: 2 |
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38 Falcon RVB: 16 (could be *2 by adding PAL/NTSC modes) |
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39 Falcon VGA: 6 |
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40 ST low: 1 |
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41 */ |
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42 #define SDL_NUMMODES 16 |
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43 |
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44 typedef struct |
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45 { |
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46 Uint16 number; /* Video mode number */ |
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47 Uint16 width; /* Size */ |
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48 Uint16 height; |
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49 Uint16 depth; /* bits per plane */ |
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50 SDL_bool doubleline; /* Double the lines ? */ |
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51 } xbiosmode_t; |
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52 |
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53 /* Private display data */ |
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54 #define NUM_MODELISTS 2 /* 8 and 16 bits-per-pixel */ |
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55 |
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56 struct SDL_PrivateVideoData { |
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57 long cookie_vdo; |
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58 int old_video_mode; /* Old video mode before entering SDL */ |
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59 void *old_video_base; /* Old pointer to screen buffer */ |
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60 void *old_palette; /* Old palette */ |
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61 Uint32 old_num_colors; /* Nb of colors in saved palette */ |
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62 int num_modes; /* Number of xbios video modes */ |
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63 xbiosmode_t *mode_list; /* List of xbios video modes */ |
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64 |
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65 void *screens[2]; /* Pointers to aligned screen buffer */ |
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66 void *screensmem[2]; /* Pointers to screen buffer */ |
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67 void *shadowscreen; /* Shadow screen for c2p conversion */ |
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68 int doubleline; /* Double line mode ? */ |
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69 int frame_number; /* Number of frame for double buffer */ |
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70 int pitch; /* Destination line width for C2P */ |
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71 int width, height; /* Screen size for centered C2P */ |
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72 |
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73 SDL_bool centscreen; /* Centscreen extension present ? */ |
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74 |
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75 SDL_Rect *SDL_modelist[NUM_MODELISTS][SDL_NUMMODES+1]; |
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76 xbiosmode_t *videomodes[NUM_MODELISTS][SDL_NUMMODES+1]; |
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77 }; |
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78 |
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79 /* _VDO cookie values */ |
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80 enum { |
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81 VDO_ST=0, |
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82 VDO_STE, |
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83 VDO_TT, |
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84 VDO_F30 |
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85 }; |
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86 |
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87 /* Monitor types */ |
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88 enum { |
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89 MONITOR_MONO=0, |
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90 MONITOR_TV, |
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91 MONITOR_VGA, |
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92 MONITOR_RGB |
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93 }; |
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94 |
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95 /* EgetShift masks */ |
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96 #define ES_BANK 0x000f |
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97 #define ES_MODE 0x0700 |
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98 #define ES_GRAY 0x1000 |
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99 #define ES_SMEAR 0x8000 |
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100 |
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101 /* TT shifter modes */ |
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102 #define ST_LOW 0x0000 |
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103 #define ST_MED 0x0100 |
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104 #define ST_HIGH 0x0200 |
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105 #define TT_LOW 0x0700 |
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106 #define TT_MED 0x0300 |
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107 #define TT_HIGH 0x0600 |
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108 |
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109 /* Hidden structure -> variables names */ |
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110 #define SDL_modelist (this->hidden->SDL_modelist) |
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111 #define XBIOS_mutex (this->hidden->mutex) |
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112 #define XBIOS_cvdo (this->hidden->cookie_vdo) |
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113 #define XBIOS_oldpalette (this->hidden->old_palette) |
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114 #define XBIOS_oldnumcol (this->hidden->old_num_colors) |
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115 #define XBIOS_oldvbase (this->hidden->old_video_base) |
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116 #define XBIOS_oldvmode (this->hidden->old_video_mode) |
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117 #define XBIOS_nummodes (this->hidden->num_modes) |
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118 #define XBIOS_modelist (this->hidden->mode_list) |
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119 #define XBIOS_screens (this->hidden->screens) |
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120 #define XBIOS_screensmem (this->hidden->screensmem) |
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121 #define XBIOS_shadowscreen (this->hidden->shadowscreen) |
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122 #define XBIOS_videomodes (this->hidden->videomodes) |
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123 #define XBIOS_doubleline (this->hidden->doubleline) |
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124 #define XBIOS_fbnum (this->hidden->frame_number) |
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125 #define XBIOS_pitch (this->hidden->pitch) |
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126 #define XBIOS_width (this->hidden->width) |
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127 #define XBIOS_height (this->hidden->height) |
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128 #define XBIOS_centscreen (this->hidden->centscreen) |
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129 |
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130 /*--- Functions prototypes ---*/ |
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131 |
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132 void SDL_XBIOS_AddMode(_THIS, Uint16 modecode, Uint16 width, Uint16 height, |
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133 Uint16 depth, SDL_bool flags); |
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134 |
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135 #endif /* _SDL_xbios_h */ |