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annotate src/video/photon/SDL_ph_image.c @ 370:ba72f259bc88

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Date: Sat, 18 May 2002 17:40:53 +0300 From: Mike Gorchak <mike@malva.ua> Subject: New QNX patches - Added more error check to avoid SEGFAULTS; - Fixed bug in update function for SDL_HWSURFACE. BTW: update is much faster than before. - Added checks for SDL_HWSURFACE flag, chosen bpp must be equal to desktop bpp for SDL_HWSURFACE. - Fixed overlay bug, no more SEGFAULTS.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 May 2002 19:54:01 +0000
parents 3333b6e68289
children bce7171e7a85
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 int type=0;
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42 PgColor_t* palette=NULL;
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43
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44 /* Determine image type */
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45 switch(screen->format->BitsPerPixel)
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46 {
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47 case 8:{
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48 type = Pg_IMAGE_PALETTE_BYTE;
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49 }
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50 break;
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51 case 15:{
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52 type = Pg_IMAGE_DIRECT_555;
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53 }
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54 break;
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55 case 16:{
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56 type = Pg_IMAGE_DIRECT_565;
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57 }
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58 break;
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59 case 24:{
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60 type = Pg_IMAGE_DIRECT_888;
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61 }
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62 break;
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63 case 32:{
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64 type = Pg_IMAGE_DIRECT_8888;
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65 }
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66 break;
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67 default:{
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68 fprintf(stderr,"ph_SetupImage(): unsupported bbp = %d\n", screen->format->BitsPerPixel);
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69 return -1;
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70 }
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71 break;
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72 }
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73
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74 /* palette emulation code */
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75 if ((screen->format->BitsPerPixel==8) && (desktoppal==SDLPH_PAL_EMULATE))
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76 {
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77 /* creating image palette */
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78 palette=malloc(_Pg_MAX_PALETTE*sizeof(PgColor_t));
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79 PgGetPalette(palette);
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80
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81 /* using shared memory for speed (set last param to 1) */
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82 if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, palette, _Pg_MAX_PALETTE, 1)) == NULL)
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83 {
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84 fprintf(stderr,"ph_SetupImage: PhCreateImage failed for bpp=8.\n");
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85 return -1;
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86 }
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87 }
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88 else
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89 {
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90 /* using shared memory for speed (set last param to 1) */
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91 if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, NULL, 0, 1)) == NULL)
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92 {
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93 fprintf(stderr,"ph_SetupImage: PhCreateImage failed.\n");
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94 return -1;
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95 }
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96 }
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97
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98 screen->pixels = SDL_Image->image;
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99
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100 this->UpdateRects = ph_NormalUpdate;
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101
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102 return 0;
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103 }
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104
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105 int ph_SetupOCImage(_THIS, SDL_Surface *screen)
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106 {
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107 int type = 0;
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108
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109 /* Determine image type */
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110 switch(screen->format->BitsPerPixel)
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111 {
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112 case 8: {
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113 type = Pg_IMAGE_PALETTE_BYTE;
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114 }
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115 break;
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116 case 15:{
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117 type = Pg_IMAGE_DIRECT_555;
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118 }
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119 break;
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120 case 16:{
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121 type = Pg_IMAGE_DIRECT_565;
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122 }
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123 break;
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124 case 24:{
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125 type = Pg_IMAGE_DIRECT_888;
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126 }
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127 break;
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128 case 32:{
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129 type = Pg_IMAGE_DIRECT_8888;
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130 }
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131 break;
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132 default:{
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133 fprintf(stderr,"ph_SetupOCImage(): unsupported bpp = %d\n", screen->format->BitsPerPixel);
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134 return -1;
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135 }
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136 break;
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137 }
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138
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139 OCImage.FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA)));
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140 OCImage.FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA)));
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141
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142 if(OCImage.direct_context == NULL)
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143 {
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144 OCImage.direct_context = PdCreateDirectContext();
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145 }
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146
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147 OCImage.offscreen_context = PdCreateOffscreenContext(0, screen->w, screen->h, Pg_OSC_MEM_PAGE_ALIGN);
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148
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149 if (OCImage.offscreen_context == NULL)
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150 {
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151 fprintf(stderr, "ph_SetupOCImage(): PdCreateOffscreenContext failed !\n");
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152 return -1;
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153 }
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154
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155 OCImage.Stride = OCImage.offscreen_context->pitch;
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156
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157 if (OCImage.flags & SDL_DOUBLEBUF)
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158 {
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159 fprintf(stderr, "ph_SetupOCImage(): Hardware flag for doublebuf offscreen context\n");
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160 }
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161
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162 OCImage.dc_ptr.ptr8 = (unsigned char *) PdGetOffscreenContextPtr(OCImage.offscreen_context);
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163
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164 if (OCImage.dc_ptr.ptr8 == NULL)
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165 {
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166 fprintf(stderr, "ph_SetupOCImage(): PdGetOffscreenContextPtr failed !\n");
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167 return -1;
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168 }
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169
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170 OCImage.CurrentFrameData = OCImage.FrameData0;
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171 OCImage.CurrentFrameData->Y = OCImage.dc_ptr.ptr8;
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172 OCImage.CurrentFrameData->U = NULL;
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173 OCImage.CurrentFrameData->V = NULL;
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174 OCImage.current = 0;
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175
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176 PhDCSetCurrent(OCImage.offscreen_context);
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177
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178 screen->pixels = OCImage.CurrentFrameData->Y;
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179
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180 this->UpdateRects = ph_OCUpdate;
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181
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182 return 0;
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183 }
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184
291
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185 int ph_SetupOpenGLImage(_THIS, SDL_Surface* screen)
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186 {
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187 this->UpdateRects = ph_OpenGLUpdate;
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188
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189 return 0;
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190 }
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191
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192 void ph_DestroyImage(_THIS, SDL_Surface *screen)
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193 {
291
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194 if (OCImage.offscreen_context != NULL)
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195 {
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196 PhDCRelease(OCImage.offscreen_context);
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197 OCImage.offscreen_context = NULL;
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198 free(OCImage.FrameData0);
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199 OCImage.FrameData0 = NULL;
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200 free(OCImage.FrameData1);
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201 OCImage.FrameData1 = NULL;
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202 }
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203
291
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204 if (SDL_Image)
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205 {
315
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206 /* if palette allocated, free it */
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207 if (SDL_Image->palette)
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208 {
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209 free(SDL_Image->palette);
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210 }
291
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211 PgShmemDestroy(SDL_Image->image);
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212 free(SDL_Image);
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213 }
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214
315
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215 /* Must be zeroed everytime */
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216 SDL_Image = NULL;
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217
291
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218 if (screen)
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219 {
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220 screen->pixels = NULL;
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221 }
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222 }
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223
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224 int ph_ResizeImage(_THIS, SDL_Surface *screen, Uint32 flags)
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225 {
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226 ph_DestroyImage(this, screen);
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227
315
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228 if (flags & SDL_HWSURFACE)
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229 {
291
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diff changeset
230 OCImage.flags = flags; /* needed for SDL_DOUBLEBUF check */
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231 return ph_SetupOCImage(this, screen);
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232 }
315
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233 else if (flags & SDL_OPENGL)
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234 {
315
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235 return ph_SetupOpenGLImage(this, screen);
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236 }
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237 else
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238 {
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239 return ph_SetupImage(this, screen);
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240 }
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241 }
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242 int ph_AllocHWSurface(_THIS, SDL_Surface *surface)
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243 {
315
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diff changeset
244 return(-1);
0
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245 }
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246
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247 void ph_FreeHWSurface(_THIS, SDL_Surface *surface)
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248 {
315
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diff changeset
249 return;
0
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250 }
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251
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252 int ph_FlipHWSurface(_THIS, SDL_Surface *surface)
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253 {
315
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diff changeset
254 return(0);
0
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255 }
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256
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257 int ph_LockHWSurface(_THIS, SDL_Surface *surface)
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258 {
315
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diff changeset
259 if ((surface == SDL_VideoSurface) && blit_queued) {
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diff changeset
260 PgFlush();
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diff changeset
261 blit_queued = 0;
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diff changeset
262 }
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diff changeset
263
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diff changeset
264 return(0);
0
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diff changeset
265 }
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diff changeset
266
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diff changeset
267 void ph_UnlockHWSurface(_THIS, SDL_Surface *surface)
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diff changeset
268 {
315
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diff changeset
269 return;
0
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diff changeset
270 }
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diff changeset
271
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diff changeset
272 static PhPoint_t ph_pos;
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diff changeset
273 static PhRect_t ph_rect;
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diff changeset
274 static int i;
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diff changeset
275
291
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diff changeset
276 void ph_OpenGLUpdate(_THIS, int numrects, SDL_Rect* rects)
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diff changeset
277 {
68a8a8237c09 Date: Thu, 21 Feb 2002 09:18:24 +0200
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diff changeset
278 this->GL_SwapBuffers(this);
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diff changeset
279
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diff changeset
280 return;
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diff changeset
281 }
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diff changeset
282
0
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283 void ph_NormalUpdate(_THIS, int numrects, SDL_Rect *rects)
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diff changeset
284 {
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285 for ( i=0; i<numrects; ++i )
315
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diff changeset
286 {
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diff changeset
287 if (rects[i].w==0) /* Clipped? */
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diff changeset
288 {
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diff changeset
289 continue;
0
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diff changeset
290 }
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diff changeset
291
315
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diff changeset
292 ph_pos.x = rects[i].x;
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diff changeset
293 ph_pos.y = rects[i].y;
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294 ph_rect.ul.x = rects[i].x;
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295 ph_rect.ul.y = rects[i].y;
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296 ph_rect.lr.x = rects[i].x + rects[i].w;
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297 ph_rect.lr.y = rects[i].y + rects[i].h;
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298
315
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299 if (PgDrawPhImageRectmx(&ph_pos, SDL_Image, &ph_rect, 0) < 0)
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300 {
370
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301 fprintf(stderr,"ph_NormalUpdate(): PgDrawPhImageRectmx failed.\n");
315
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302 }
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303 }
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304
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305 if (PgFlush() < 0)
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306 {
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307 fprintf(stderr,"ph_NormalUpdate(): PgFlush failed.\n");
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308 }
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309 }
370
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310
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311 void ph_OCUpdate(_THIS, int numrects, SDL_Rect *rects)
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312 {
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313 PhPoint_t zero = {0};
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314 PhArea_t src_rect;
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315 PhArea_t dest_rect;
315
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316
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317 if(OCImage.direct_context == NULL)
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318 {
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319 return;
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320 }
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321
315
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322 PgSetRegion(PtWidgetRid(window));
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323 PgSetClipping(0, NULL);
315
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324 PgWaitHWIdle();
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325
315
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326 for (i=0; i<numrects; ++i)
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327 {
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328 if (rects[i].w == 0) /* Clipped? */
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329 {
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330 continue;
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331 }
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332
370
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333 src_rect.pos.x=rects[i].x;
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334 src_rect.pos.y=rects[i].y;
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335 dest_rect.pos.x=rects[i].x;
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336 dest_rect.pos.y=rects[i].y;
315
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337
370
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338 src_rect.size.w=rects[i].w;
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339 src_rect.size.h=rects[i].h;
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340 dest_rect.size.w=rects[i].w;
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341 dest_rect.size.h=rects[i].h;
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342
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343 zero.x = 0;
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344 zero.y = 0;
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345 PgSetTranslation(&zero, 0);
315
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346 PgSetRegion(PtWidgetRid(window));
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347 PgSetClipping(0, NULL);
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348 PgContextBlitArea(OCImage.offscreen_context, &src_rect, NULL, &dest_rect);
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349 }
315
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350
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351 if (PgFlush() < 0)
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352 {
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353 fprintf(stderr,"ph_OCUpdate(): PgFlush failed.\n");
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354 }
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355
315
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356 /* later used to toggling double buffer */
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357 if (OCImage.current == 0)
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358 {
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359 OCImage.CurrentFrameData = OCImage.FrameData0;
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360 }
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361 else
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362 {
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363 OCImage.CurrentFrameData = OCImage.FrameData1;
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364 }
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365 }