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annotate src/video/nanox/SDL_nximage.c @ 566:d6e7d7006062

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Enable the glXGetProcAddressARB code (fixes problems with NVidia drivers)
author Sam Lantinga <slouken@libsdl.org>
date Mon, 20 Jan 2003 00:25:28 +0000
parents 26dafefeebb2
children 31d9be995d5c
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, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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4 Copyright (C) 2001 Hsieh-Fu Tsai
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5 Copyright (C) 2002 Greg Haerr <greg@censoft.com>
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6
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7 This library is free software; you can redistribute it and/or
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8 modify it under the terms of the GNU Library General Public
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9 License as published by the Free Software Foundation; either
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10 version 2 of the License, or (at your option) any later version.
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11
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12 This library is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 Library General Public License for more details.
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16
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17 You should have received a copy of the GNU Library General Public
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18 License along with this library; if not, write to the Free
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19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20
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21 Sam Lantinga
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e8157fcb3114 Updated the source with the correct e-mail address
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22 slouken@libsdl.org
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23
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24 Hsieh-Fu Tsai
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25 clare@setabox.com
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26 */
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27
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28 #include <stdlib.h>
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29
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30 #include "SDL_error.h"
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31
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32 #include "SDL_nximage_c.h"
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33
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34 void NX_NormalUpdate (_THIS, int numrects, SDL_Rect * rects)
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35 {
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36 int i, j, xinc, yinc, destinc, rowinc ;
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37 int x, y, w, h ;
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38 unsigned char * src = NULL, * dest = NULL ;
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39
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40 Dprintf ("enter NX_NormalUpdate\n") ;
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41
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42 /* These are the values for the incoming image */
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43 xinc = this -> screen -> format -> BytesPerPixel ;
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44 yinc = this -> screen -> pitch ;
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45
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46 for (i = 0; i < numrects; ++ i) {
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47 x = rects [i].x, y = rects [i].y ;
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48 w = rects [i].w, h = rects [i].h ;
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49 src = SDL_Image + y * yinc + x * xinc ;
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50 #ifdef ENABLE_NANOX_DIRECT_FB
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51 if (Clientfb) {
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52 if (currently_fullscreen)
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53 dest = fbinfo.winpixels + (((y+OffsetY) * fbinfo.pitch) +
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54 ((x+OffsetX) * fbinfo.bytespp));
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55 else
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56 dest = fbinfo.winpixels + ((y * fbinfo.pitch) + (x * fbinfo.bytespp));
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57 destinc = fbinfo.pitch;
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58 } else {
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59 #endif
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60 dest = Image_buff ;
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61 destinc = w * xinc ;
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62 #ifdef ENABLE_NANOX_DIRECT_FB
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63 }
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64 #endif
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65 rowinc = w * xinc;
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66
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67 // apply GammaRamp table
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68 if ((pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888)
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69 && GammaRamp_R && GammaRamp_G && GammaRamp_B) {
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70 Uint8 * ptr ;
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71 int k ;
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72
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73 for (j = h; j > 0; -- j, src += yinc) {
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74 ptr = src - 1 ;
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75 for (k = w; k > 0; -- k) {
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76 if (pixel_type == MWPF_TRUECOLOR0888)
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77 ptr += 2 ;
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78 else
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79 ++ ptr ;
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80 (* ptr) = GammaRamp_B [(* ptr)] ;
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81 ++ ptr ;
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82 (* ptr) = GammaRamp_G [(* ptr)] ;
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83 ++ ptr ;
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84 (* ptr) = GammaRamp_R [(* ptr)] ;
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85 }
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86 }
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87 src = SDL_Image + y * yinc + x * xinc ;
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88 }
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89
471
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90 for (j = h; j > 0; -- j, src += yinc, dest += destinc)
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91 memcpy (dest, src, rowinc) ;
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92 if (!Clientfb) {
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93 if (currently_fullscreen) {
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94 GrArea (FSwindow, SDL_GC, x + OffsetX, y + OffsetY, w, h, Image_buff,
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95 pixel_type) ;
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96 } else {
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97 GrArea (SDL_Window, SDL_GC, x, y, w, h, Image_buff, pixel_type) ;
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98 }
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99 }
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100 }
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101 GrFlush();
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102
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103 Dprintf ("leave NX_NormalUpdate\n") ;
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104 }
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105
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106 int NX_SetupImage (_THIS, SDL_Surface * screen)
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107 {
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108 int size = screen -> h * screen -> pitch ;
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109
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110 Dprintf ("enter NX_SetupImage\n") ;
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111
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112 screen -> pixels = (void *) malloc (size) ;
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113
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114 if (!Clientfb) {
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115 Image_buff = (unsigned char *) malloc (size) ;
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116 if (screen -> pixels == NULL || Image_buff == NULL) {
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117 free (screen -> pixels) ;
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118 free (Image_buff) ;
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119 SDL_OutOfMemory () ;
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120 return -1 ;
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121 }
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122 }
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123
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124 SDL_Image = (unsigned char *) screen -> pixels ;
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125
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126 this -> UpdateRects = NX_NormalUpdate ;
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127
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128 Dprintf ("leave NX_SetupImage\n") ;
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129 return 0 ;
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130 }
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131
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132 void NX_DestroyImage (_THIS, SDL_Surface * screen)
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133 {
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134 Dprintf ("enter NX_DestroyImage\n") ;
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135
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136 if (SDL_Image) free (SDL_Image) ;
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137 if (Image_buff) free (Image_buff) ;
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138 if (screen) screen -> pixels = NULL ;
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139
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140 Dprintf ("leave NX_DestroyImage\n") ;
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141 }
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142
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143 int NX_ResizeImage (_THIS, SDL_Surface * screen, Uint32 flags)
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144 {
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145 int retval ;
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146 GR_SCREEN_INFO si ;
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147
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148 Dprintf ("enter NX_ResizeImage\n") ;
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149
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150 NX_DestroyImage (this, screen) ;
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151 retval = NX_SetupImage (this, screen) ;
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152
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153 GrGetScreenInfo (& si) ;
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154 OffsetX = (si.cols - screen -> w) / 2 ;
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155 OffsetY = (si.rows - screen -> h) / 2 ;
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156
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157 #ifdef ENABLE_NANOX_DIRECT_FB
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158 if (Clientfb) {
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159 /* Get current window position and fb pointer*/
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160 if (currently_fullscreen)
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161 GrGetWindowFBInfo(FSwindow, &fbinfo);
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162 else
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163 GrGetWindowFBInfo(SDL_Window, &fbinfo);
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164 }
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165 #endif
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166 Dprintf ("leave NX_ResizeImage\n") ;
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167 return retval ;
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168 }
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169
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170 void NX_RefreshDisplay (_THIS)
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171 {
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172 Dprintf ("enter NX_RefreshDisplay\n") ;
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173
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174 // Don't refresh a display that doesn't have an image (like GL)
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175 if (! SDL_Image) {
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176 return;
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177 }
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178
471
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179 #ifdef ENABLE_NANOX_DIRECT_FB
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180 if (Clientfb) {
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181 int j;
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182 char *src, *dest = NULL;
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183 int xinc, yinc, rowinc;
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184
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185 GrGetWindowFBInfo(SDL_Window, &fbinfo);
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186
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187 xinc = this -> screen -> format -> BytesPerPixel ;
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188 yinc = this -> screen -> pitch ;
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189
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190 src = SDL_Image;
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191 if (currently_fullscreen)
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192 dest = fbinfo.winpixels + ((OffsetY * fbinfo.pitch) +
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193 (OffsetX * fbinfo.bytespp));
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194 else
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195 dest = fbinfo.winpixels;
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196 rowinc = xinc * this -> screen -> w;
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197
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198 for (j = this -> screen -> h; j > 0; -- j, src += yinc, dest += fbinfo.pitch)
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199 memcpy (dest, src, rowinc) ;
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200 } else {
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201 #endif
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202 if (currently_fullscreen) {
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203 GrArea (FSwindow, SDL_GC, OffsetX, OffsetY, this -> screen -> w,
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204 this -> screen -> h, SDL_Image, pixel_type) ;
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205 } else {
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206 GrArea (SDL_Window, SDL_GC, 0, 0, this -> screen -> w,
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207 this -> screen -> h, SDL_Image, pixel_type) ;
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208 }
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209 #ifdef ENABLE_NANOX_DIRECT_FB
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210 }
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211 #endif
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212 GrFlush();
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213
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214 Dprintf ("leave NX_RefreshDisplay\n") ;
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215 }