Mercurial > sdl-ios-xcode
annotate src/video/photon/SDL_ph_image.c @ 78:e9582f471c02
Added the environment variable SDL_MOUSE_NORELATIVE to completely disable
relative mouse motion if the application desires it. UNDOCUMENTED!!
| author | Sam Lantinga <slouken@lokigames.com> |
|---|---|
| date | Sat, 23 Jun 2001 18:51:29 +0000 |
| parents | 8cc4dbfab9ab |
| children | e8157fcb3114 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga | |
| 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 | |
| 20 slouken@devolution.com | |
| 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 //printf("%s:%s:%d\n", __FILE__, __PRETTY_FUNCTION__, __LINE__ ); | |
| 37 | |
| 38 /* Various screen update functions available */ | |
| 39 //static void ph_NormalUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 40 //static void ph_DummyUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 41 | |
| 42 int ph_SetupImage(_THIS, SDL_Surface *screen) | |
| 43 { | |
| 44 int type = 0; | |
| 45 | |
| 46 /* Determine image type */ | |
| 47 switch(screen->format->BitsPerPixel) | |
| 48 { | |
| 49 case 8:{ | |
| 50 type = Pg_IMAGE_PALETTE_BYTE; | |
| 51 } | |
| 52 break; | |
| 53 case 15:{ | |
| 54 type = Pg_IMAGE_DIRECT_555; | |
| 55 } | |
| 56 break; | |
| 57 case 16:{ | |
| 58 type = Pg_IMAGE_DIRECT_565; | |
| 59 } | |
| 60 break; | |
| 61 | |
| 62 case 24:{ | |
| 63 type = Pg_IMAGE_DIRECT_888; | |
| 64 } | |
| 65 break; | |
| 66 | |
| 67 case 32:{ | |
| 68 type = Pg_IMAGE_DIRECT_8888; | |
| 69 } | |
| 70 break; | |
| 71 default:{ | |
| 72 /* should never get here */ | |
| 73 fprintf(stderr,"error: unsupported bbp = %d\n", | |
| 74 screen->format->BitsPerPixel); | |
| 75 return -1; | |
| 76 } | |
| 77 break; | |
| 78 } | |
| 79 | |
| 80 //using shared memory for speed (set last param to 1) | |
|
19
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
81 if ((SDL_Image = PhCreateImage( NULL, screen->w, screen->h, type, NULL, 0, 1 )) == NULL) |
| 0 | 82 { |
| 83 fprintf(stderr,"error: PhCreateImage failed.\n"); | |
| 84 return -1; | |
| 85 } | |
| 86 | |
| 87 screen->pixels = SDL_Image->image; | |
| 88 | |
| 89 this->UpdateRects = ph_NormalUpdate; | |
| 90 | |
| 91 return 0; | |
| 92 } | |
| 93 | |
| 94 int ph_SetupOCImage(_THIS, SDL_Surface *screen) //Offscreen context | |
| 95 { | |
| 96 int type = 0; | |
| 97 | |
| 98 /* Determine image type */ | |
| 99 switch(screen->format->BitsPerPixel) | |
| 100 { | |
| 101 case 8:{ | |
| 102 type = Pg_IMAGE_PALETTE_BYTE; | |
| 103 } | |
| 104 break; | |
| 105 case 15:{ | |
| 106 type = Pg_IMAGE_DIRECT_555; | |
| 107 } | |
| 108 break; | |
| 109 case 16:{ | |
| 110 type = Pg_IMAGE_DIRECT_565; | |
| 111 } | |
| 112 break; | |
| 113 | |
| 114 case 24:{ | |
| 115 type = Pg_IMAGE_DIRECT_888; | |
| 116 } | |
| 117 break; | |
| 118 | |
| 119 case 32:{ | |
| 120 type = Pg_IMAGE_DIRECT_8888; | |
| 121 } | |
| 122 break; | |
| 123 default:{ | |
| 124 /* should never get here */ | |
| 125 fprintf(stderr,"error: unsupported bbp = %d\n", | |
| 126 screen->format->BitsPerPixel); | |
| 127 return -1; | |
| 128 } | |
| 129 break; | |
| 130 } | |
| 131 | |
| 132 OCImage.FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA))); | |
| 133 OCImage.FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA))); | |
| 134 | |
| 135 if(OCImage.direct_context == NULL) | |
| 136 OCImage.direct_context = PdCreateDirectContext(); | |
| 137 | |
| 138 OCImage.offscreen_context = PdCreateOffscreenContext(0,screen->w,screen->h, Pg_OSC_MEM_PAGE_ALIGN); | |
| 139 | |
| 140 if (OCImage.offscreen_context == NULL) | |
| 141 { | |
| 142 printf("PdCreateOffscreenContext failed\n"); | |
| 143 return -1; | |
| 144 } | |
| 145 | |
| 146 OCImage.Stride = OCImage.offscreen_context->pitch; | |
| 147 | |
| 148 if (OCImage.flags & SDL_DOUBLEBUF) | |
| 149 printf("hardware flag for doublebuf offscreen context\n"); | |
| 150 | |
| 151 | |
| 152 OCImage.dc_ptr.ptr8 = (unsigned char *) PdGetOffscreenContextPtr(OCImage.offscreen_context); | |
| 153 | |
| 154 OCImage.CurrentFrameData = OCImage.FrameData0; | |
| 155 OCImage.CurrentFrameData->Y = OCImage.dc_ptr.ptr8; | |
| 156 OCImage.CurrentFrameData->U = NULL; | |
| 157 OCImage.CurrentFrameData->V = NULL; | |
| 158 OCImage.current = 0; | |
| 159 | |
| 160 if(OCImage.dc_ptr.ptr8 == NULL) | |
| 161 { | |
| 162 printf("PdGetOffscreenContextPtr failed\n"); | |
| 163 return -1; | |
| 164 } | |
| 165 | |
| 166 PhDCSetCurrent(OCImage.offscreen_context); | |
| 167 | |
| 168 screen->pixels = OCImage.CurrentFrameData->Y; | |
| 169 | |
| 170 this->UpdateRects = ph_OCUpdate; | |
| 171 | |
| 172 return 0; | |
| 173 } | |
| 174 | |
| 175 | |
| 176 void ph_DestroyImage(_THIS, SDL_Surface *screen) | |
| 177 { | |
| 178 | |
| 179 | |
| 180 if(SDL_Image == NULL) | |
| 181 return; | |
| 182 | |
| 183 if (OCImage.offscreen_context != NULL) | |
| 184 { | |
| 185 | |
| 186 PhDCRelease(OCImage.offscreen_context); | |
| 187 OCImage.offscreen_context = NULL; | |
| 188 free(OCImage.FrameData0); | |
| 189 OCImage.FrameData0 = NULL; | |
| 190 free(OCImage.FrameData1); | |
| 191 OCImage.FrameData1 = NULL; | |
| 192 } | |
| 193 | |
| 194 if (SDL_Image->image) | |
| 195 { | |
|
19
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
196 // SDL_Image->flags=Ph_RELEASE_IMAGE; |
|
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
197 // PhReleaseImage(SDL_Image); |
|
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
198 PgShmemDestroy(SDL_Image->image); // Use this if you using shared memory, or uncomment |
|
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
199 // lines above if not (and comment this line ;-) |
|
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
200 free(SDL_Image); |
| 0 | 201 } |
| 202 | |
|
19
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
203 if ( screen ) |
|
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
204 { |
|
8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
205 screen->pixels = NULL; |
| 0 | 206 } |
| 207 | |
| 208 SDL_Image = NULL; | |
| 209 } | |
| 210 | |
| 211 int ph_ResizeImage(_THIS, SDL_Surface *screen, Uint32 flags) | |
| 212 { | |
| 213 | |
| 214 ph_DestroyImage(this, screen); | |
| 215 | |
| 216 if( flags & SDL_HWSURFACE) | |
| 217 { | |
| 218 OCImage.flags = flags; //needed for SDL_DOUBLEBUF check | |
| 219 return ph_SetupOCImage(this,screen); | |
| 220 } | |
| 221 else if(flags & SDL_OPENGL) /* No image when using GL */ | |
| 222 { | |
| 223 return 0; | |
| 224 } | |
| 225 else | |
| 226 { | |
| 227 return ph_SetupImage(this, screen); | |
| 228 } | |
| 229 | |
| 230 } | |
| 231 | |
| 232 int ph_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 233 { | |
| 234 | |
| 235 return(-1); | |
| 236 } | |
| 237 | |
| 238 void ph_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 239 { | |
| 240 | |
| 241 return; | |
| 242 } | |
| 243 | |
| 244 int ph_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 245 { | |
| 246 | |
| 247 return(0); | |
| 248 } | |
| 249 | |
| 250 int ph_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 251 { | |
| 252 | |
| 253 if ( (surface == SDL_VideoSurface) && blit_queued ) { | |
| 254 // XSync(GFX_Display, False); | |
| 255 PgFlush(); | |
| 256 blit_queued = 0; | |
| 257 } | |
| 258 return(0); | |
| 259 } | |
| 260 | |
| 261 void ph_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 262 { | |
| 263 | |
| 264 return; | |
| 265 } | |
| 266 | |
| 267 static PhPoint_t ph_pos; | |
| 268 static PhRect_t ph_rect; | |
| 269 static int i; | |
| 270 | |
| 271 void ph_NormalUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 272 { | |
| 273 | |
| 274 for ( i=0; i<numrects; ++i ) | |
| 275 { | |
| 276 if ( rects[i].w == 0 ) { /* Clipped? */ | |
| 277 continue; | |
| 278 } | |
| 279 | |
| 280 ph_pos.x = rects[i].x; | |
| 281 ph_pos.y = rects[i].y; | |
| 282 ph_rect.ul.x = rects[i].x; | |
| 283 ph_rect.ul.y = rects[i].y; | |
| 284 ph_rect.lr.x = rects[i].x + rects[i].w; | |
| 285 ph_rect.lr.y = rects[i].y + rects[i].h; | |
| 286 | |
| 287 if (PgDrawPhImageRectmx( &ph_pos, SDL_Image, &ph_rect, 0 ) < 0) | |
| 288 { | |
| 289 fprintf(stderr,"error: PgDrawPhImageRectmx failed.\n"); | |
| 290 } | |
| 291 } | |
| 292 if (PgFlush() < 0) | |
| 293 { | |
| 294 fprintf(stderr,"error: PgFlush failed.\n"); | |
| 295 } | |
| 296 } | |
| 297 void ph_OCUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 298 { | |
| 299 PhPoint_t zero = {0}; | |
| 300 PhRect_t src_rect; | |
| 301 PhRect_t dest_rect; | |
| 302 | |
| 303 if(OCImage.direct_context == NULL) | |
| 304 { | |
| 305 return; | |
| 306 } | |
| 307 | |
| 308 PgSetRegion(PtWidgetRid(window)); | |
| 309 PgSetClipping(0,NULL); | |
| 310 PgWaitHWIdle(); | |
| 311 | |
| 312 | |
| 313 for ( i=0; i<numrects; ++i ) | |
| 314 { | |
| 315 if ( rects[i].w == 0 ) { /* Clipped? */ | |
| 316 continue; | |
| 317 } | |
| 318 | |
| 319 src_rect.ul.x=rects[i].x; | |
| 320 src_rect.ul.y=rects[i].y; | |
| 321 dest_rect.ul.x=rects[i].x; | |
| 322 dest_rect.ul.y=rects[i].y; | |
| 323 | |
| 324 dest_rect.lr.x=src_rect.lr.x= rects[i].x +rects[i].w; | |
| 325 dest_rect.lr.y=src_rect.lr.y= rects[i].y +rects[i].h; | |
| 326 | |
| 327 zero.x = zero.y = 0; | |
| 328 PgSetTranslation (&zero, 0); | |
| 329 PgSetRegion(PtWidgetRid(window)); | |
| 330 PgSetClipping(0,NULL); | |
| 331 PgContextBlitArea(OCImage.offscreen_context, (PhArea_t *)(&src_rect), NULL, (PhArea_t *)(&dest_rect)); | |
| 332 | |
| 333 } | |
| 334 if (PgFlush() < 0) | |
| 335 { | |
| 336 fprintf(stderr,"error: PgFlush failed.\n"); | |
| 337 } | |
| 338 | |
| 339 //later used to toggling double buffer | |
| 340 if(OCImage.current == 0) | |
| 341 { | |
| 342 OCImage.CurrentFrameData = OCImage.FrameData0; | |
| 343 } | |
| 344 else | |
| 345 { | |
| 346 OCImage.CurrentFrameData = OCImage.FrameData1; | |
| 347 } | |
| 348 } | |
| 349 |