Mercurial > sdl-ios-xcode
annotate src/video/photon/SDL_ph_image.c @ 297:f6ffac90895c
Updated copyright information for 2002
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 06 Mar 2002 11:23:08 +0000 |
| parents | 68a8a8237c09 |
| children | 3333b6e68289 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #include <stdlib.h> | |
| 29 #include <Ph.h> | |
| 30 #include <photon/Pg.h> | |
| 31 | |
| 32 #include "SDL_error.h" | |
| 33 #include "SDL_endian.h" | |
| 34 #include "SDL_ph_image_c.h" | |
| 35 | |
| 36 int ph_SetupImage(_THIS, SDL_Surface *screen) | |
| 37 { | |
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38 int type = 0; |
| 0 | 39 |
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40 /* Determine image type */ |
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41 switch(screen->format->BitsPerPixel) |
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42 { |
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43 case 8:{ |
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44 type = Pg_IMAGE_PALETTE_BYTE; |
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45 } |
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46 break; |
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47 case 15:{ |
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48 type = Pg_IMAGE_DIRECT_555; |
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49 } |
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50 break; |
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51 case 16:{ |
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52 type = Pg_IMAGE_DIRECT_565; |
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53 } |
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54 break; |
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55 case 24:{ |
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56 type = Pg_IMAGE_DIRECT_888; |
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57 } |
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58 break; |
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59 case 32:{ |
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60 type = Pg_IMAGE_DIRECT_8888; |
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61 } |
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62 break; |
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63 default:{ |
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64 /* should never get here */ |
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65 fprintf(stderr,"error: unsupported bbp = %d\n", |
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66 screen->format->BitsPerPixel); |
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67 return -1; |
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68 } |
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69 break; |
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70 } |
| 0 | 71 |
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72 /* using shared memory for speed (set last param to 1) */ |
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73 if ((SDL_Image = PhCreateImage(NULL, screen->w, screen->h, type, NULL, 0, 1)) == NULL) |
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74 { |
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75 fprintf(stderr,"error: PhCreateImage failed.\n"); |
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76 return -1; |
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77 } |
| 0 | 78 |
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79 screen->pixels = SDL_Image->image; |
| 0 | 80 |
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81 this->UpdateRects = ph_NormalUpdate; |
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82 |
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83 return 0; |
| 0 | 84 } |
| 85 | |
| 86 int ph_SetupOCImage(_THIS, SDL_Surface *screen) //Offscreen context | |
| 87 { | |
| 88 int type = 0; | |
| 89 | |
| 90 /* Determine image type */ | |
| 91 switch(screen->format->BitsPerPixel) | |
| 92 { | |
| 93 case 8:{ | |
| 94 type = Pg_IMAGE_PALETTE_BYTE; | |
| 95 } | |
| 96 break; | |
| 97 case 15:{ | |
| 98 type = Pg_IMAGE_DIRECT_555; | |
| 99 } | |
| 100 break; | |
| 101 case 16:{ | |
| 102 type = Pg_IMAGE_DIRECT_565; | |
| 103 } | |
| 104 break; | |
| 105 | |
| 106 case 24:{ | |
| 107 type = Pg_IMAGE_DIRECT_888; | |
| 108 } | |
| 109 break; | |
| 110 | |
| 111 case 32:{ | |
| 112 type = Pg_IMAGE_DIRECT_8888; | |
| 113 } | |
| 114 break; | |
| 115 default:{ | |
| 116 /* should never get here */ | |
| 117 fprintf(stderr,"error: unsupported bbp = %d\n", | |
| 118 screen->format->BitsPerPixel); | |
| 119 return -1; | |
| 120 } | |
| 121 break; | |
| 122 } | |
| 123 | |
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124 OCImage.FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA))); |
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125 OCImage.FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA))); |
| 0 | 126 |
| 127 if(OCImage.direct_context == NULL) | |
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128 OCImage.direct_context = PdCreateDirectContext(); |
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130 OCImage.offscreen_context = PdCreateOffscreenContext(0,screen->w,screen->h, Pg_OSC_MEM_PAGE_ALIGN); |
| 0 | 131 |
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132 if (OCImage.offscreen_context == NULL) |
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133 { |
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134 printf("PdCreateOffscreenContext failed\n"); |
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135 return -1; |
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136 } |
| 0 | 137 |
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138 OCImage.Stride = OCImage.offscreen_context->pitch; |
| 0 | 139 |
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140 if (OCImage.flags & SDL_DOUBLEBUF) |
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141 printf("hardware flag for doublebuf offscreen context\n"); |
| 0 | 142 |
| 143 | |
| 144 OCImage.dc_ptr.ptr8 = (unsigned char *) PdGetOffscreenContextPtr(OCImage.offscreen_context); | |
| 145 | |
| 146 OCImage.CurrentFrameData = OCImage.FrameData0; | |
| 147 OCImage.CurrentFrameData->Y = OCImage.dc_ptr.ptr8; | |
| 148 OCImage.CurrentFrameData->U = NULL; | |
| 149 OCImage.CurrentFrameData->V = NULL; | |
| 150 OCImage.current = 0; | |
| 151 | |
| 152 if(OCImage.dc_ptr.ptr8 == NULL) | |
| 153 { | |
| 154 printf("PdGetOffscreenContextPtr failed\n"); | |
| 155 return -1; | |
| 156 } | |
| 157 | |
| 158 PhDCSetCurrent(OCImage.offscreen_context); | |
| 159 | |
| 160 screen->pixels = OCImage.CurrentFrameData->Y; | |
| 161 | |
| 162 this->UpdateRects = ph_OCUpdate; | |
| 163 | |
| 164 return 0; | |
| 165 } | |
| 166 | |
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167 int ph_SetupOpenGLImage(_THIS, SDL_Surface* screen) |
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168 { |
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169 this->UpdateRects = ph_OpenGLUpdate; |
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170 |
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171 return 0; |
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172 } |
| 0 | 173 |
| 174 void ph_DestroyImage(_THIS, SDL_Surface *screen) | |
| 175 { | |
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176 if (OCImage.offscreen_context != NULL) |
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177 { |
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178 PhDCRelease(OCImage.offscreen_context); |
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179 OCImage.offscreen_context = NULL; |
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180 free(OCImage.FrameData0); |
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181 OCImage.FrameData0 = NULL; |
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182 free(OCImage.FrameData1); |
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183 OCImage.FrameData1 = NULL; |
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184 } |
| 0 | 185 |
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186 if (SDL_Image) |
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187 { |
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188 PgShmemDestroy(SDL_Image->image); |
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189 free(SDL_Image); |
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190 SDL_Image = NULL; |
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191 } |
| 0 | 192 |
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193 if (screen) |
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194 { |
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195 screen->pixels = NULL; |
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196 } |
| 0 | 197 } |
| 198 | |
| 199 int ph_ResizeImage(_THIS, SDL_Surface *screen, Uint32 flags) | |
| 200 { | |
| 201 ph_DestroyImage(this, screen); | |
| 202 | |
| 203 if( flags & SDL_HWSURFACE) | |
| 204 { | |
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205 OCImage.flags = flags; /* needed for SDL_DOUBLEBUF check */ |
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206 return ph_SetupOCImage(this, screen); |
| 0 | 207 } |
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208 else if(flags & SDL_OPENGL) |
| 0 | 209 { |
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210 return ph_SetupOpenGLImage(this, screen); |
| 0 | 211 } |
| 212 else | |
| 213 { | |
| 214 return ph_SetupImage(this, screen); | |
| 215 } | |
| 216 } | |
| 217 | |
| 218 int ph_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 219 { | |
| 220 return(-1); | |
| 221 } | |
| 222 | |
| 223 void ph_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 224 { | |
| 225 return; | |
| 226 } | |
| 227 | |
| 228 int ph_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 229 { | |
| 230 return(0); | |
| 231 } | |
| 232 | |
| 233 int ph_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 234 { | |
| 235 if ( (surface == SDL_VideoSurface) && blit_queued ) { | |
| 236 // XSync(GFX_Display, False); | |
| 237 PgFlush(); | |
| 238 blit_queued = 0; | |
| 239 } | |
| 240 return(0); | |
| 241 } | |
| 242 | |
| 243 void ph_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 244 { | |
| 245 return; | |
| 246 } | |
| 247 | |
| 248 static PhPoint_t ph_pos; | |
| 249 static PhRect_t ph_rect; | |
| 250 static int i; | |
| 251 | |
|
291
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252 void ph_OpenGLUpdate(_THIS, int numrects, SDL_Rect* rects) |
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253 { |
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254 this->GL_SwapBuffers(this); |
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255 |
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256 return; |
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257 } |
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258 |
| 0 | 259 void ph_NormalUpdate(_THIS, int numrects, SDL_Rect *rects) |
| 260 { | |
| 261 | |
| 262 for ( i=0; i<numrects; ++i ) | |
| 263 { | |
| 264 if ( rects[i].w == 0 ) { /* Clipped? */ | |
| 265 continue; | |
| 266 } | |
| 267 | |
| 268 ph_pos.x = rects[i].x; | |
| 269 ph_pos.y = rects[i].y; | |
| 270 ph_rect.ul.x = rects[i].x; | |
| 271 ph_rect.ul.y = rects[i].y; | |
| 272 ph_rect.lr.x = rects[i].x + rects[i].w; | |
| 273 ph_rect.lr.y = rects[i].y + rects[i].h; | |
| 274 | |
| 275 if (PgDrawPhImageRectmx( &ph_pos, SDL_Image, &ph_rect, 0 ) < 0) | |
| 276 { | |
| 277 fprintf(stderr,"error: PgDrawPhImageRectmx failed.\n"); | |
| 278 } | |
| 279 } | |
| 280 if (PgFlush() < 0) | |
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266
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281 { |
| 0 | 282 fprintf(stderr,"error: PgFlush failed.\n"); |
| 283 } | |
| 284 } | |
| 285 void ph_OCUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 286 { | |
| 287 PhPoint_t zero = {0}; | |
| 288 PhRect_t src_rect; | |
| 289 PhRect_t dest_rect; | |
| 290 | |
| 291 if(OCImage.direct_context == NULL) | |
| 292 { | |
| 293 return; | |
| 294 } | |
| 295 | |
| 296 PgSetRegion(PtWidgetRid(window)); | |
| 297 PgSetClipping(0,NULL); | |
| 298 PgWaitHWIdle(); | |
| 299 | |
| 300 | |
| 301 for ( i=0; i<numrects; ++i ) | |
| 302 { | |
| 303 if ( rects[i].w == 0 ) { /* Clipped? */ | |
| 304 continue; | |
| 305 } | |
| 306 | |
| 307 src_rect.ul.x=rects[i].x; | |
| 308 src_rect.ul.y=rects[i].y; | |
| 309 dest_rect.ul.x=rects[i].x; | |
| 310 dest_rect.ul.y=rects[i].y; | |
| 311 | |
| 312 dest_rect.lr.x=src_rect.lr.x= rects[i].x +rects[i].w; | |
| 313 dest_rect.lr.y=src_rect.lr.y= rects[i].y +rects[i].h; | |
| 314 | |
| 315 zero.x = zero.y = 0; | |
| 316 PgSetTranslation (&zero, 0); | |
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317 PgSetRegion(PtWidgetRid(window)); |
| 0 | 318 PgSetClipping(0,NULL); |
| 319 PgContextBlitArea(OCImage.offscreen_context, (PhArea_t *)(&src_rect), NULL, (PhArea_t *)(&dest_rect)); | |
| 320 | |
| 321 } | |
| 322 if (PgFlush() < 0) | |
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323 { |
| 0 | 324 fprintf(stderr,"error: PgFlush failed.\n"); |
| 325 } | |
| 326 | |
| 327 //later used to toggling double buffer | |
| 328 if(OCImage.current == 0) | |
| 329 { | |
| 330 OCImage.CurrentFrameData = OCImage.FrameData0; | |
| 331 } | |
| 332 else | |
| 333 { | |
| 334 OCImage.CurrentFrameData = OCImage.FrameData1; | |
| 335 } | |
| 336 } | |
| 337 |