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annotate src/video/gem/SDL_gemvideo.h @ 1139:d0ae4dff7208

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Altivec blitter for 555 -> 8888 surface, written by me. --ryan.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 08 Sep 2005 07:20:59 +0000
parents 936da0056ed3
children c9b51268668f
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 #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_gemvideo_h
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29 #define _SDL_gemvideo_h
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30
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31 #include "SDL_sysvideo.h"
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32 #include "SDL_mutex.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 /* Functions prototypes */
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38 void GEM_wind_redraw(_THIS, int winhandle, short *inside);
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39
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40 /* Private display data */
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41
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42 #define B2S_C2P_1TO2 (1<<0) /* C2P convert buffer 1 to buffer 2 */
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43 #define B2S_C2P_1TOS (1<<1) /* C2P convert buffer 1 to screen */
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44 #define B2S_VROCPYFM_1TOS (1<<2) /* vro_cpyfm() buffer 1 to screen */
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45 #define B2S_VROCPYFM_2TOS (1<<3) /* vro_cpyfm() buffer 2 to screen */
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46
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47 #define SDL_NUMMODES 1 /* Fullscreen */
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48
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49 struct SDL_PrivateVideoData {
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50 Uint16 buf2scr_ops; /* Operations to get buffer to screen */
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51 void *buffer1; /* Our shadow buffers */
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52 void *buffer2;
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53
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54 /* VDI infos */
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55 short vdi_handle; /* VDI handle */
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56 short full_w, full_h; /* Fullscreen size */
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57 short bpp; /* Colour depth */
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58 short pixelsize; /* Bytes per pixel */
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59 short old_numcolors; /* Number of colors in saved palette */
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60 Uint16 pitch; /* Line length */
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61 Uint16 format; /* Screen format */
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62 void *screen; /* Screen address */
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63 Uint32 red, green, blue, alpha; /* Screen components */
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64 Uint32 screensize;
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65 short blit_coords[8]; /* Coordinates for bitblt */
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66 MFDB src_mfdb, dst_mfdb; /* VDI MFDB for bitblt */
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67 Uint16 old_palette[256][3]; /* Saved current palette */
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68 Uint16 cur_palette[256][3]; /* SDL application palette */
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69 /* Function to set/restore palette */
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70 void (*setpalette)(_THIS, Uint16 newpal[256][3]);
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71
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72 /* GEM infos */
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73 short desk_x, desk_y; /* Desktop properties */
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74 short desk_w, desk_h;
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75 short win_handle; /* Our window handle */
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76 int window_type; /* Window type */
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77 const char *title_name; /* Window title */
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78 const char *icon_name; /* Icon title */
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79 short version; /* AES version */
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80 short wfeatures; /* AES window features */
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81 SDL_bool refresh_name; /* Change window title ? */
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82 SDL_bool window_fulled; /* Window maximized ? */
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83 SDL_bool mouse_relative; /* Report relative mouse movement */
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84 SDL_bool locked; /* AES locked for fullscreen ? */
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85 SDL_bool lock_redraw; /* Prevent redraw till buffers are setup */
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86 short message[8]; /* To self-send an AES message */
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87 void *menubar; /* Menu bar save buffer when going fullscreen */
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88
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89 SDL_bool fullscreen; /* Fullscreen or windowed mode ? */
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90 SDL_Rect *SDL_modelist[SDL_NUMMODES+1]; /* Mode list */
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91 SDL_Surface *icon; /* The icon */
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92 };
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93
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94 /* Hidden structure -> variables names */
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95 #define VDI_handle (this->hidden->vdi_handle)
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96 #define VDI_w (this->hidden->full_w)
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97 #define VDI_h (this->hidden->full_h)
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98 #define VDI_bpp (this->hidden->bpp)
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99 #define VDI_pixelsize (this->hidden->pixelsize)
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100 #define VDI_oldnumcolors (this->hidden->old_numcolors)
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101 #define VDI_oldpalette (this->hidden->old_palette)
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102 #define VDI_curpalette (this->hidden->cur_palette)
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103 #define VDI_setpalette (this->hidden->setpalette)
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104 #define VDI_pitch (this->hidden->pitch)
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105 #define VDI_format (this->hidden->format)
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106 #define VDI_screen (this->hidden->screen)
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107 #define VDI_redmask (this->hidden->red)
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108 #define VDI_greenmask (this->hidden->green)
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109 #define VDI_bluemask (this->hidden->blue)
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110 #define VDI_alphamask (this->hidden->alpha)
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111 #define VDI_screensize (this->hidden->screensize)
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112 #define VDI_src_mfdb (this->hidden->src_mfdb)
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113 #define VDI_dst_mfdb (this->hidden->dst_mfdb)
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114 #define VDI_blit_coords (this->hidden->blit_coords)
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115
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116 #define GEM_desk_x (this->hidden->desk_x)
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117 #define GEM_desk_y (this->hidden->desk_y)
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118 #define GEM_desk_w (this->hidden->desk_w)
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119 #define GEM_desk_h (this->hidden->desk_h)
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120 #define GEM_handle (this->hidden->win_handle)
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121 #define GEM_win_type (this->hidden->window_type)
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122 #define GEM_title_name (this->hidden->title_name)
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123 #define GEM_icon_name (this->hidden->icon_name)
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124 #define GEM_refresh_name (this->hidden->refresh_name)
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125 #define GEM_version (this->hidden->version)
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126 #define GEM_wfeatures (this->hidden->wfeatures)
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127 #define GEM_win_fulled (this->hidden->window_fulled)
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128 #define GEM_mouse_relative (this->hidden->mouse_relative)
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129 #define GEM_locked (this->hidden->locked)
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130 #define GEM_lock_redraw (this->hidden->lock_redraw)
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131 #define GEM_message (this->hidden->message)
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132 #define SDL_modelist (this->hidden->SDL_modelist)
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133 #define GEM_icon (this->hidden->icon)
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134 #define GEM_fullscreen (this->hidden->fullscreen)
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135 #define GEM_menubar (this->hidden->menubar)
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136
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137 #define GEM_buffer1 (this->hidden->buffer1)
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138 #define GEM_buffer2 (this->hidden->buffer2)
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139 #define GEM_bufops (this->hidden->buf2scr_ops)
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140
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141 #define VDI_FBMASK(amask, rmask, gmask, bmask) \
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142 VDI_alphamask = (amask); \
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143 VDI_redmask = (rmask); \
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144 VDI_greenmask = (gmask); \
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145 VDI_bluemask = (bmask);
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146
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147 /*
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148 Possible buffer to screen operations:
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149
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150 TC: 8 (chunky),15,16,24,32 bpp
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151 8I: 8 bpp planes
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152 FB: screen framebuffer address available
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153 FS: fullscreen
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154
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155 TC, FB, FS:
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156 - draw to screen
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157 8I, FB, FS:
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158 - draw to buffer 1
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159 - C2P from buffer 1 to screen
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160
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161 TC, !FB, FS:
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162 - draw to buffer 1
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163 - vro_cpyfm() from buffer 1 to screen
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164 8I, !FB, FS:
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165 - draw to buffer 1
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166 - C2P from buffer 1 to buffer 2
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167 - vro_cpyfm() from buffer 2 to screen
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168
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169 TC, FB, !FS:
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170 - draw to buffer 1
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171 - vro_cpyfm() from buffer 1 to screen
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172 8I, FB, !FS:
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173 - draw to buffer 1
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174 - C2P from buffer 1 to buffer 2
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175 - vro_cpyfm() from buffer 2 to screen
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176
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177 TC, !FB, !FS:
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178 - draw to buffer 1
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179 - vro_cpyfm() from buffer 1 to screen
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180 8I, !FB, !FS:
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181 - draw to buffer 1
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182 - C2P from buffer 1 to buffer 2
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183 - vro_cpyfm() from buffer 2 to screen
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184 */
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185
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186 #endif /* _SDL_gemvideo_h */