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annotate src/video/nanox/SDL_nximage.c @ 1358:c71e05b4dc2e

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More header massaging... works great on Windows. ;-)
author Sam Lantinga <slouken@libsdl.org>
date Fri, 10 Feb 2006 06:48:43 +0000
parents 604d73db6802
children d910939febfa
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 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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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 "SDL_nximage_c.h"
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29
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30 void NX_NormalUpdate (_THIS, int numrects, SDL_Rect * rects)
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31 {
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32 int i, j, xinc, yinc, destinc, rowinc ;
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33 int x, y, w, h ;
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34 unsigned char * src = NULL, * dest = NULL ;
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35
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36 Dprintf ("enter NX_NormalUpdate\n") ;
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37
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38 /* These are the values for the incoming image */
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39 xinc = this -> screen -> format -> BytesPerPixel ;
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40 yinc = this -> screen -> pitch ;
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41
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42 for (i = 0; i < numrects; ++ i) {
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43 x = rects [i].x, y = rects [i].y ;
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44 w = rects [i].w, h = rects [i].h ;
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45 src = SDL_Image + y * yinc + x * xinc ;
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46 #ifdef ENABLE_NANOX_DIRECT_FB
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47 if (Clientfb) {
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48 if (currently_fullscreen)
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49 dest = fbinfo.winpixels + (((y+OffsetY) * fbinfo.pitch) +
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50 ((x+OffsetX) * fbinfo.bytespp));
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51 else
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52 dest = fbinfo.winpixels + ((y * fbinfo.pitch) + (x * fbinfo.bytespp));
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53 destinc = fbinfo.pitch;
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54 }
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55 else
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56 #endif
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57 {
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58 dest = Image_buff ;
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59 destinc = w * xinc ;
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60 }
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61 rowinc = w * xinc;
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62
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63 // apply GammaRamp table
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64 if ((pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888)
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65 && GammaRamp_R && GammaRamp_G && GammaRamp_B) {
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66 Uint8 * ptrsrc ;
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67 Uint8 * ptrdst ;
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68 int k ;
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69
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70 for (j = h; j > 0; -- j, src += yinc, dest += destinc) {
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71 ptrsrc = src ;
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72 ptrdst = dest ;
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73 for (k = w; k > 0; -- k) {
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74 *ptrdst++ = GammaRamp_B [*ptrsrc++] >> 8;
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75 *ptrdst++ = GammaRamp_G [*ptrsrc++] >> 8;
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76 *ptrdst++ = GammaRamp_R [*ptrsrc++] >> 8;
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77 *ptrdst++ = 0;
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78 ++ptrsrc;
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79 }
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80 }
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81 }
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82 #if 1 /* This is needed for microwindows 0.90 or older */
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83 else if (pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888) {
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84 Uint8 * ptrsrc ;
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85 Uint8 * ptrdst ;
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86 int k ;
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87
699
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88 for (j = h; j > 0; -- j, src += yinc, dest += destinc) {
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89 ptrsrc = src ;
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90 ptrdst = dest ;
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91 for (k = w; k > 0; -- k) {
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92 *ptrdst++ = *ptrsrc++;
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93 *ptrdst++ = *ptrsrc++;
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94 *ptrdst++ = *ptrsrc++;
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95 *ptrdst++ = 0;
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96 ++ptrsrc;
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97 }
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98 }
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99 }
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100 #endif
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101 else
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102 {
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103 for (j = h; j > 0; -- j, src += yinc, dest += destinc)
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104 SDL_memcpy (dest, src, rowinc) ;
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105 }
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106 if (!Clientfb) {
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107 if (currently_fullscreen) {
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108 GrArea (FSwindow, SDL_GC, x + OffsetX, y + OffsetY, w, h, Image_buff,
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109 pixel_type) ;
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110 } else {
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111 GrArea (SDL_Window, SDL_GC, x, y, w, h, Image_buff, pixel_type) ;
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112 }
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113 }
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114 }
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115 GrFlush();
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116
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117 Dprintf ("leave NX_NormalUpdate\n") ;
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118 }
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119
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120 int NX_SetupImage (_THIS, SDL_Surface * screen)
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121 {
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122 int size = screen -> h * screen -> pitch ;
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123
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124 Dprintf ("enter NX_SetupImage\n") ;
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125
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126 screen -> pixels = (void *) SDL_malloc (size) ;
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127
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128 if (!Clientfb) {
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129 Image_buff = (unsigned char *) SDL_malloc (size) ;
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130 if (screen -> pixels == NULL || Image_buff == NULL) {
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131 SDL_free (screen -> pixels) ;
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132 SDL_free (Image_buff) ;
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133 SDL_OutOfMemory () ;
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134 return -1 ;
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135 }
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136 }
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137
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138 SDL_Image = (unsigned char *) screen -> pixels ;
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139
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140 this -> UpdateRects = NX_NormalUpdate ;
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141
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142 Dprintf ("leave NX_SetupImage\n") ;
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143 return 0 ;
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144 }
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145
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146 void NX_DestroyImage (_THIS, SDL_Surface * screen)
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147 {
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148 Dprintf ("enter NX_DestroyImage\n") ;
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149
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150 if (SDL_Image) SDL_free (SDL_Image) ;
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151 if (Image_buff) SDL_free (Image_buff) ;
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152 if (screen) screen -> pixels = NULL ;
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153
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154 Dprintf ("leave NX_DestroyImage\n") ;
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155 }
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156
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157 int NX_ResizeImage (_THIS, SDL_Surface * screen, Uint32 flags)
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158 {
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159 int retval ;
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160 GR_SCREEN_INFO si ;
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161
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162 Dprintf ("enter NX_ResizeImage\n") ;
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163
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164 NX_DestroyImage (this, screen) ;
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165 retval = NX_SetupImage (this, screen) ;
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166
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167 GrGetScreenInfo (& si) ;
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168 OffsetX = (si.cols - screen -> w) / 2 ;
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169 OffsetY = (si.rows - screen -> h) / 2 ;
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170
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171 #ifdef ENABLE_NANOX_DIRECT_FB
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172 if (Clientfb) {
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173 /* Get current window position and fb pointer*/
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174 if (currently_fullscreen)
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175 GrGetWindowFBInfo(FSwindow, &fbinfo);
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176 else
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177 GrGetWindowFBInfo(SDL_Window, &fbinfo);
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178 }
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179 #endif
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180 Dprintf ("leave NX_ResizeImage\n") ;
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181 return retval ;
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182 }
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183
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184 void NX_RefreshDisplay (_THIS)
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185 {
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186 Dprintf ("enter NX_RefreshDisplay\n") ;
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187
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188 // Don't refresh a display that doesn't have an image (like GL)
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189 if (! SDL_Image) {
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190 return;
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191 }
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192
471
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193 #ifdef ENABLE_NANOX_DIRECT_FB
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194 if (Clientfb) {
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195 int j;
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196 char *src, *dest = NULL;
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197 int xinc, yinc, rowinc;
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198
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199 GrGetWindowFBInfo(SDL_Window, &fbinfo);
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200
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201 xinc = this -> screen -> format -> BytesPerPixel ;
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202 yinc = this -> screen -> pitch ;
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203
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204 src = SDL_Image;
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205 if (currently_fullscreen)
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206 dest = fbinfo.winpixels + ((OffsetY * fbinfo.pitch) +
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207 (OffsetX * fbinfo.bytespp));
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208 else
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209 dest = fbinfo.winpixels;
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210 rowinc = xinc * this -> screen -> w;
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211
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212 for (j = this -> screen -> h; j > 0; -- j, src += yinc, dest += fbinfo.pitch)
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213 SDL_memcpy (dest, src, rowinc) ;
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214 }
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215 else
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216 #endif
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217 {
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218 if (currently_fullscreen) {
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219 GrArea (FSwindow, SDL_GC, OffsetX, OffsetY, this -> screen -> w,
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220 this -> screen -> h, SDL_Image, pixel_type) ;
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221 } else {
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222 GrArea (SDL_Window, SDL_GC, 0, 0, this -> screen -> w,
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223 this -> screen -> h, SDL_Image, pixel_type) ;
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224 }
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225 }
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226 GrFlush();
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227
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228 Dprintf ("leave NX_RefreshDisplay\n") ;
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229 }