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annotate src/video/photon/SDL_ph_image.c @ 441:598b25b9bffe

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Zeroed out SDL_Surface::unused1 so glSDL will work on stock SDL
author Sam Lantinga <slouken@libsdl.org>
date Sat, 17 Aug 2002 19:17:01 +0000
parents bce7171e7a85
children 8e3ce997621c
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
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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 #include <stdlib.h>
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29 #include <Ph.h>
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30 #include <photon/Pg.h>
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31
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32 #include "SDL_error.h"
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33 #include "SDL_endian.h"
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34 #include "SDL_ph_image_c.h"
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35
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36 /* remove this line, if photon headers updates */
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37 int PgWaitHWIdle(void);
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38
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39 int ph_SetupImage(_THIS, SDL_Surface *screen)
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40 {
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41 PgColor_t* palette=NULL;
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42 int type=0;
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43 int bpp;
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44
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45 bpp=screen->format->BitsPerPixel;
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46
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47 /* Determine image type */
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48 switch(bpp)
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49 {
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50 case 8:{
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51 type = Pg_IMAGE_PALETTE_BYTE;
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52 }
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53 break;
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54 case 15:{
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55 type = Pg_IMAGE_DIRECT_555;
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56 }
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57 break;
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58 case 16:{
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59 type = Pg_IMAGE_DIRECT_565;
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60 }
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61 break;
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62 case 24:{
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63 type = Pg_IMAGE_DIRECT_888;
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64 }
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65 break;
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66 case 32:{
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67 type = Pg_IMAGE_DIRECT_8888;
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68 }
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69 break;
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70 default:{
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71 fprintf(stderr,"ph_SetupImage(): unsupported bbp = %d\n", bpp);
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72 return -1;
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73 }
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74 break;
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75 }
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76
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77 /* palette emulation code */
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78 if ((bpp==8) && (desktoppal==SDLPH_PAL_EMULATE))
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79 {
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80 /* creating image palette */
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81 palette=malloc(_Pg_MAX_PALETTE*sizeof(PgColor_t));
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82 PgGetPalette(palette);
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83
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84 /* using shared memory for speed (set last param to 1) */
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85 if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, palette, _Pg_MAX_PALETTE, 1)) == NULL)
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86 {
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87 fprintf(stderr,"ph_SetupImage(): PhCreateImage failed for bpp=8.\n");
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88 return -1;
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89 }
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90 }
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91 else
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92 {
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93 /* using shared memory for speed (set last param to 1) */
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94 if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, NULL, 0, 1)) == NULL)
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95 {
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96 fprintf(stderr,"ph_SetupImage: PhCreateImage failed.\n");
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97 return -1;
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98 }
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99 }
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100
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101 screen->pixels = SDL_Image->image;
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102 screen->pitch = SDL_Image->bpl; /* Recalculated pitch, created by PhCreateImage */
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103
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104 this->UpdateRects = ph_NormalUpdate;
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105
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106 return 0;
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107 }
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108
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109 int ph_SetupOCImage(_THIS, SDL_Surface *screen)
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110 {
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111 int type = 0;
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112 int bpp;
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113
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114 bpp=screen->format->BitsPerPixel;
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115
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116 /* Determine image type */
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117 switch(bpp)
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118 {
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119 case 8: {
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120 type = Pg_IMAGE_PALETTE_BYTE;
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121 }
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122 break;
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123 case 15:{
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124 type = Pg_IMAGE_DIRECT_555;
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125 }
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126 break;
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127 case 16:{
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128 type = Pg_IMAGE_DIRECT_565;
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129 }
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130 break;
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131 case 24:{
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132 type = Pg_IMAGE_DIRECT_888;
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133 }
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134 break;
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135 case 32:{
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136 type = Pg_IMAGE_DIRECT_8888;
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137 }
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138 break;
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139 default:{
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140 fprintf(stderr,"ph_SetupOCImage(): unsupported bpp = %d\n", bpp);
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141 return -1;
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142 }
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143 break;
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144 }
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145
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146 OCImage.FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA)));
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147 OCImage.FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA)));
380
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148 memset(OCImage.FrameData0, 0x00, (size_t)(sizeof(FRAMEDATA)));
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149 memset(OCImage.FrameData1, 0x00, (size_t)(sizeof(FRAMEDATA)));
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150
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151 if(OCImage.direct_context == NULL)
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152 {
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153 OCImage.direct_context = PdCreateDirectContext();
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154 }
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155
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156 OCImage.offscreen_context = PdCreateOffscreenContext(0, screen->w, screen->h, Pg_OSC_MEM_PAGE_ALIGN);
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157
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158 if (OCImage.offscreen_context == NULL)
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159 {
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160 fprintf(stderr, "ph_SetupOCImage(): PdCreateOffscreenContext failed !\n");
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161 return -1;
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162 }
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163
380
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164 screen->pitch = OCImage.offscreen_context->pitch; /* Recalculated pitch */
370
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165
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166 if (OCImage.flags & SDL_DOUBLEBUF)
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167 {
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168 fprintf(stderr, "ph_SetupOCImage(): Hardware flag for doublebuf offscreen context\n");
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169 }
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170
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171 OCImage.dc_ptr.ptr8 = (unsigned char *) PdGetOffscreenContextPtr(OCImage.offscreen_context);
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172
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173 if (OCImage.dc_ptr.ptr8 == NULL)
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174 {
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175 fprintf(stderr, "ph_SetupOCImage(): PdGetOffscreenContextPtr failed !\n");
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176 return -1;
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177 }
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178
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179 OCImage.CurrentFrameData = OCImage.FrameData0;
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180 OCImage.CurrentFrameData->Y = OCImage.dc_ptr.ptr8;
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181 OCImage.CurrentFrameData->U = NULL;
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182 OCImage.CurrentFrameData->V = NULL;
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183 OCImage.current = 0;
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184
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185 PhDCSetCurrent(OCImage.offscreen_context);
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186
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187 screen->pixels = OCImage.CurrentFrameData->Y;
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188
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189 this->UpdateRects = ph_OCUpdate;
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190
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191 return 0;
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192 }
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193
291
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194 int ph_SetupOpenGLImage(_THIS, SDL_Surface* screen)
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195 {
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196 this->UpdateRects = ph_OpenGLUpdate;
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197
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198 return 0;
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199 }
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200
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201 void ph_DestroyImage(_THIS, SDL_Surface *screen)
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202 {
291
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203 if (OCImage.offscreen_context != NULL)
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204 {
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205 PhDCRelease(OCImage.offscreen_context);
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206 OCImage.offscreen_context = NULL;
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207 free(OCImage.FrameData0);
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208 OCImage.FrameData0 = NULL;
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209 free(OCImage.FrameData1);
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210 OCImage.FrameData1 = NULL;
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211 }
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212
291
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213 if (SDL_Image)
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214 {
315
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215 /* if palette allocated, free it */
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216 if (SDL_Image->palette)
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diff changeset
217 {
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218 free(SDL_Image->palette);
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219 }
291
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220 PgShmemDestroy(SDL_Image->image);
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221 free(SDL_Image);
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222 }
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223
315
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224 /* Must be zeroed everytime */
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225 SDL_Image = NULL;
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diff changeset
226
291
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diff changeset
227 if (screen)
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228 {
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229 screen->pixels = NULL;
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230 }
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231 }
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232
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233 int ph_ResizeImage(_THIS, SDL_Surface *screen, Uint32 flags)
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234 {
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235 ph_DestroyImage(this, screen);
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236
315
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diff changeset
237 if (flags & SDL_HWSURFACE)
0
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238 {
291
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diff changeset
239 OCImage.flags = flags; /* needed for SDL_DOUBLEBUF check */
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240 return ph_SetupOCImage(this, screen);
0
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241 }
315
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diff changeset
242 else if (flags & SDL_OPENGL)
0
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243 {
315
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diff changeset
244 return ph_SetupOpenGLImage(this, screen);
0
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245 }
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246 else
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247 {
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248 return ph_SetupImage(this, screen);
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249 }
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250 }
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diff changeset
251 int ph_AllocHWSurface(_THIS, SDL_Surface *surface)
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diff changeset
252 {
315
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diff changeset
253 return(-1);
0
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254 }
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diff changeset
255
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diff changeset
256 void ph_FreeHWSurface(_THIS, SDL_Surface *surface)
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diff changeset
257 {
315
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diff changeset
258 return;
0
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diff changeset
259 }
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diff changeset
260
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diff changeset
261 int ph_FlipHWSurface(_THIS, SDL_Surface *surface)
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diff changeset
262 {
315
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diff changeset
263 return(0);
0
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264 }
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diff changeset
265
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diff changeset
266 int ph_LockHWSurface(_THIS, SDL_Surface *surface)
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diff changeset
267 {
315
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diff changeset
268 if ((surface == SDL_VideoSurface) && blit_queued) {
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diff changeset
269 PgFlush();
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diff changeset
270 blit_queued = 0;
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diff changeset
271 }
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parents: 297
diff changeset
272
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diff changeset
273 return(0);
0
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diff changeset
274 }
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diff changeset
275
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diff changeset
276 void ph_UnlockHWSurface(_THIS, SDL_Surface *surface)
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diff changeset
277 {
315
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diff changeset
278 return;
0
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diff changeset
279 }
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diff changeset
280
291
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diff changeset
281 void ph_OpenGLUpdate(_THIS, int numrects, SDL_Rect* rects)
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parents: 283
diff changeset
282 {
68a8a8237c09 Date: Thu, 21 Feb 2002 09:18:24 +0200
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diff changeset
283 this->GL_SwapBuffers(this);
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parents: 283
diff changeset
284
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diff changeset
285 return;
68a8a8237c09 Date: Thu, 21 Feb 2002 09:18:24 +0200
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parents: 283
diff changeset
286 }
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parents: 283
diff changeset
287
0
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288 void ph_NormalUpdate(_THIS, int numrects, SDL_Rect *rects)
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diff changeset
289 {
380
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diff changeset
290 PhPoint_t ph_pos;
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diff changeset
291 PhRect_t ph_rect;
bce7171e7a85 Date: Wed, 22 May 2002 22:30:58 +0300
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292 int i;
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293
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294 for (i=0; i<numrects; ++i)
315
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295 {
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296 if (rects[i].w==0) /* Clipped? */
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297 {
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298 continue;
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299 }
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300
315
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301 ph_pos.x = rects[i].x;
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302 ph_pos.y = rects[i].y;
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303 ph_rect.ul.x = rects[i].x;
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304 ph_rect.ul.y = rects[i].y;
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305 ph_rect.lr.x = rects[i].x + rects[i].w;
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306 ph_rect.lr.y = rects[i].y + rects[i].h;
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307
315
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308 if (PgDrawPhImageRectmx(&ph_pos, SDL_Image, &ph_rect, 0) < 0)
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309 {
370
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310 fprintf(stderr,"ph_NormalUpdate(): PgDrawPhImageRectmx failed.\n");
315
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311 }
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312 }
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313
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314 if (PgFlush() < 0)
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315 {
370
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316 fprintf(stderr,"ph_NormalUpdate(): PgFlush failed.\n");
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317 }
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318 }
370
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319
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320 void ph_OCUpdate(_THIS, int numrects, SDL_Rect *rects)
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321 {
380
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322 int i;
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323
315
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324 PhPoint_t zero = {0};
370
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325 PhArea_t src_rect;
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326 PhArea_t dest_rect;
315
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327
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328 if(OCImage.direct_context == NULL)
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329 {
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330 return;
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331 }
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332
315
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333 PgSetRegion(PtWidgetRid(window));
370
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334 PgSetClipping(0, NULL);
315
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335 PgWaitHWIdle();
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336
315
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337 for (i=0; i<numrects; ++i)
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338 {
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339 if (rects[i].w == 0) /* Clipped? */
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340 {
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341 continue;
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342 }
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343
370
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344 src_rect.pos.x=rects[i].x;
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345 src_rect.pos.y=rects[i].y;
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346 dest_rect.pos.x=rects[i].x;
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347 dest_rect.pos.y=rects[i].y;
315
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348
370
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349 src_rect.size.w=rects[i].w;
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350 src_rect.size.h=rects[i].h;
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351 dest_rect.size.w=rects[i].w;
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352 dest_rect.size.h=rects[i].h;
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353
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354 zero.x = 0;
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355 zero.y = 0;
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356 PgSetTranslation(&zero, 0);
315
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357 PgSetRegion(PtWidgetRid(window));
370
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358 PgSetClipping(0, NULL);
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359 PgContextBlitArea(OCImage.offscreen_context, &src_rect, NULL, &dest_rect);
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360 }
315
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361
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362 if (PgFlush() < 0)
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363 {
370
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364 fprintf(stderr,"ph_OCUpdate(): PgFlush failed.\n");
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365 }
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366
315
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367 /* later used to toggling double buffer */
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368 if (OCImage.current == 0)
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369 {
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370 OCImage.CurrentFrameData = OCImage.FrameData0;
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371 }
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372 else
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373 {
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374 OCImage.CurrentFrameData = OCImage.FrameData1;
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375 }
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376 }