Mercurial > sdl-ios-xcode
annotate test/testwin.c @ 1781:d8030f368b84
Get updates to the shadow surface while switched away
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 08 May 2006 05:36:45 +0000 |
| parents | a9be6a3a51d1 |
| children | 782fd950bd46 c121d94672cb f61a20d195f7 |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* Bring up a window and play with it */ | |
| 3 | |
| 4 #include <stdlib.h> | |
| 5 #include <stdio.h> | |
| 6 #include <string.h> | |
| 7 | |
| 8 #define BENCHMARK_SDL | |
| 9 | |
| 10 #define NOTICE(X) printf("%s", X); | |
| 11 | |
| 12 #include "SDL.h" | |
| 13 | |
|
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14 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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15 static void quit(int rc) |
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16 { |
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17 SDL_Quit(); |
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18 exit(rc); |
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19 } |
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20 |
| 0 | 21 void DrawPict(SDL_Surface *screen, char *bmpfile, |
| 22 int speedy, int flip, int nofade) | |
| 23 { | |
| 24 SDL_Surface *picture; | |
| 25 SDL_Rect dest, update; | |
| 26 int i, centered; | |
| 27 int ncolors; | |
| 28 SDL_Color *colors, *cmap; | |
| 29 | |
| 30 /* Load the image into a surface */ | |
| 31 if ( bmpfile == NULL ) { | |
| 32 bmpfile = "sample.bmp"; /* Sample image */ | |
| 33 } | |
| 34 fprintf(stderr, "Loading picture: %s\n", bmpfile); | |
| 35 picture = SDL_LoadBMP(bmpfile); | |
| 36 if ( picture == NULL ) { | |
| 37 fprintf(stderr, "Couldn't load %s: %s\n", bmpfile, | |
| 38 SDL_GetError()); | |
| 39 return; | |
| 40 } | |
| 41 | |
| 42 /* Set the display colors -- on a hicolor display this is a no-op */ | |
| 43 if ( picture->format->palette ) { | |
| 44 ncolors = picture->format->palette->ncolors; | |
| 45 colors = (SDL_Color *)malloc(ncolors*sizeof(SDL_Color)); | |
| 46 cmap = (SDL_Color *)malloc(ncolors*sizeof(SDL_Color)); | |
| 47 memcpy(colors, picture->format->palette->colors, | |
| 48 ncolors*sizeof(SDL_Color)); | |
| 49 } else { | |
| 50 int r, g, b; | |
| 51 | |
| 52 /* Allocate 256 color palette */ | |
| 53 ncolors = 256; | |
| 54 colors = (SDL_Color *)malloc(ncolors*sizeof(SDL_Color)); | |
| 55 cmap = (SDL_Color *)malloc(ncolors*sizeof(SDL_Color)); | |
| 56 | |
| 57 /* Set a 3,3,2 color cube */ | |
| 58 for ( r=0; r<8; ++r ) { | |
| 59 for ( g=0; g<8; ++g ) { | |
| 60 for ( b=0; b<4; ++b ) { | |
| 61 i = ((r<<5)|(g<<2)|b); | |
| 62 colors[i].r = r<<5; | |
| 63 colors[i].g = g<<5; | |
| 64 colors[i].b = b<<6; | |
| 65 } | |
| 66 } | |
| 67 } | |
| 68 } | |
| 69 NOTICE("testwin: setting colors\n"); | |
| 70 if ( ! SDL_SetColors(screen, colors, 0, ncolors) && | |
| 71 (screen->format->palette != NULL) ) { | |
| 72 fprintf(stderr, | |
| 73 "Warning: Couldn't set all of the colors, but SDL will map the image\n" | |
| 74 " (colormap fading will suffer - try the -warp option)\n" | |
| 75 ); | |
| 76 } | |
| 77 | |
| 78 /* Set the screen to black (not really necessary) */ | |
| 79 if ( SDL_LockSurface(screen) == 0 ) { | |
| 80 Uint32 black; | |
| 81 Uint8 *pixels; | |
| 82 | |
| 83 black = SDL_MapRGB(screen->format, 0, 0, 0); | |
| 84 pixels = (Uint8 *)screen->pixels; | |
| 85 for ( i=0; i<screen->h; ++i ) { | |
| 86 memset(pixels, black, | |
| 87 screen->w*screen->format->BytesPerPixel); | |
| 88 pixels += screen->pitch; | |
| 89 } | |
| 90 SDL_UnlockSurface(screen); | |
| 91 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 92 } | |
| 93 | |
| 94 /* Display the picture */ | |
| 95 if ( speedy ) { | |
| 96 SDL_Surface *displayfmt; | |
| 97 | |
| 98 fprintf(stderr, "Converting picture\n"); | |
| 99 displayfmt = SDL_DisplayFormat(picture); | |
| 100 if ( displayfmt == NULL ) { | |
| 101 fprintf(stderr, | |
| 102 "Couldn't convert image: %s\n", SDL_GetError()); | |
| 103 goto done; | |
| 104 } | |
| 105 SDL_FreeSurface(picture); | |
| 106 picture = displayfmt; | |
| 107 } | |
| 108 printf("(image surface located in %s memory)\n", | |
| 109 (picture->flags&SDL_HWSURFACE) ? "video" : "system"); | |
| 110 centered = (screen->w - picture->w)/2; | |
| 111 if ( centered < 0 ) { | |
| 112 centered = 0; | |
| 113 } | |
| 114 dest.y = (screen->h - picture->h)/2; | |
| 115 dest.w = picture->w; | |
| 116 dest.h = picture->h; | |
| 117 NOTICE("testwin: moving image\n"); | |
| 118 for ( i=0; i<=centered; ++i ) { | |
| 119 dest.x = i; | |
| 120 update = dest; | |
| 121 if ( SDL_BlitSurface(picture, NULL, screen, &update) < 0 ) { | |
| 122 fprintf(stderr, "Blit failed: %s\n", SDL_GetError()); | |
| 123 break; | |
| 124 } | |
| 125 if ( flip ) { | |
| 126 SDL_Flip(screen); | |
| 127 } else { | |
| 128 SDL_UpdateRects(screen, 1, &update); | |
| 129 } | |
| 130 } | |
| 131 | |
| 132 #ifdef SCREENSHOT | |
| 133 if ( SDL_SaveBMP(screen, "screen.bmp") < 0 ) | |
| 134 printf("Couldn't save screen: %s\n", SDL_GetError()); | |
| 135 #endif | |
| 136 | |
| 137 #ifndef BENCHMARK_SDL | |
| 138 /* Let it sit there for a while */ | |
| 139 SDL_Delay(5*1000); | |
| 140 #endif | |
| 141 /* Fade the colormap */ | |
| 142 if ( ! nofade ) { | |
| 143 int maxstep; | |
| 144 SDL_Color final; | |
| 145 SDL_Color palcolors[256]; | |
| 146 struct { | |
| 147 Sint16 r, g, b; | |
| 148 } cdist[256]; | |
| 149 | |
| 150 NOTICE("testwin: fading out...\n"); | |
| 151 memcpy(cmap, colors, ncolors*sizeof(SDL_Color)); | |
| 152 maxstep = 32-1; | |
| 153 final.r = 0xFF; | |
| 154 final.g = 0x00; | |
| 155 final.b = 0x00; | |
| 156 memcpy(palcolors, colors, ncolors*sizeof(SDL_Color)); | |
| 157 for ( i=0; i<ncolors; ++i ) { | |
| 158 cdist[i].r = final.r-palcolors[i].r; | |
| 159 cdist[i].g = final.g-palcolors[i].g; | |
| 160 cdist[i].b = final.b-palcolors[i].b; | |
| 161 } | |
| 162 for ( i=0; i<=maxstep/2; ++i ) { /* halfway fade */ | |
| 163 int c; | |
| 164 for ( c=0; c<ncolors; ++c ) { | |
| 165 colors[c].r = | |
| 166 palcolors[c].r+((cdist[c].r*i))/maxstep; | |
| 167 colors[c].g = | |
| 168 palcolors[c].g+((cdist[c].g*i))/maxstep; | |
| 169 colors[c].b = | |
| 170 palcolors[c].b+((cdist[c].b*i))/maxstep; | |
| 171 } | |
| 172 SDL_SetColors(screen, colors, 0, ncolors); | |
| 173 SDL_Delay(1); | |
| 174 } | |
| 175 final.r = 0x00; | |
| 176 final.g = 0x00; | |
| 177 final.b = 0x00; | |
| 178 memcpy(palcolors, colors, ncolors*sizeof(SDL_Color)); | |
| 179 for ( i=0; i<ncolors; ++i ) { | |
| 180 cdist[i].r = final.r-palcolors[i].r; | |
| 181 cdist[i].g = final.g-palcolors[i].g; | |
| 182 cdist[i].b = final.b-palcolors[i].b; | |
| 183 } | |
| 184 maxstep /= 2; | |
| 185 for ( i=0; i<=maxstep; ++i ) { /* finish fade out */ | |
| 186 int c; | |
| 187 for ( c=0; c<ncolors; ++c ) { | |
| 188 colors[c].r = | |
| 189 palcolors[c].r+((cdist[c].r*i))/maxstep; | |
| 190 colors[c].g = | |
| 191 palcolors[c].g+((cdist[c].g*i))/maxstep; | |
| 192 colors[c].b = | |
| 193 palcolors[c].b+((cdist[c].b*i))/maxstep; | |
| 194 } | |
| 195 SDL_SetColors(screen, colors, 0, ncolors); | |
| 196 SDL_Delay(1); | |
| 197 } | |
| 198 for ( i=0; i<ncolors; ++i ) { | |
| 199 colors[i].r = final.r; | |
| 200 colors[i].g = final.g; | |
| 201 colors[i].b = final.b; | |
| 202 } | |
| 203 SDL_SetColors(screen, colors, 0, ncolors); | |
| 204 NOTICE("testwin: fading in...\n"); | |
| 205 memcpy(palcolors, colors, ncolors*sizeof(SDL_Color)); | |
| 206 for ( i=0; i<ncolors; ++i ) { | |
| 207 cdist[i].r = cmap[i].r-palcolors[i].r; | |
| 208 cdist[i].g = cmap[i].g-palcolors[i].g; | |
| 209 cdist[i].b = cmap[i].b-palcolors[i].b; | |
| 210 } | |
| 211 for ( i=0; i<=maxstep; ++i ) { /* 32 step fade in */ | |
| 212 int c; | |
| 213 for ( c=0; c<ncolors; ++c ) { | |
| 214 colors[c].r = | |
| 215 palcolors[c].r+((cdist[c].r*i))/maxstep; | |
| 216 colors[c].g = | |
| 217 palcolors[c].g+((cdist[c].g*i))/maxstep; | |
| 218 colors[c].b = | |
| 219 palcolors[c].b+((cdist[c].b*i))/maxstep; | |
| 220 } | |
| 221 SDL_SetColors(screen, colors, 0, ncolors); | |
| 222 SDL_Delay(1); | |
| 223 } | |
| 224 NOTICE("testwin: fading over\n"); | |
| 225 } | |
| 226 | |
| 227 done: | |
| 228 /* Free the picture and return */ | |
| 229 SDL_FreeSurface(picture); | |
| 230 free(colors); free(cmap); | |
| 231 return; | |
| 232 } | |
| 233 | |
| 234 int main(int argc, char *argv[]) | |
| 235 { | |
| 236 SDL_Surface *screen; | |
| 237 /* Options */ | |
| 238 int speedy, flip, nofade; | |
| 239 int delay; | |
| 240 int w, h; | |
| 241 int desired_bpp; | |
| 242 Uint32 video_flags; | |
| 243 #ifdef BENCHMARK_SDL | |
| 244 Uint32 then, now; | |
| 245 #endif | |
| 246 /* Set default options and check command-line */ | |
| 247 speedy = 0; | |
| 248 flip = 0; | |
| 249 nofade = 0; | |
| 250 delay = 1; | |
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251 |
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252 #ifdef _WIN32_WCE |
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253 w = 240; |
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254 h = 320; |
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255 desired_bpp = 8; |
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256 video_flags = SDL_FULLSCREEN; |
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257 #else |
| 0 | 258 w = 640; |
| 259 h = 480; | |
| 260 desired_bpp = 0; | |
| 261 video_flags = 0; | |
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262 #endif |
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263 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { |
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264 fprintf(stderr, |
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265 "Couldn't initialize SDL: %s\n", SDL_GetError()); |
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266 return(1); |
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267 } |
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268 |
| 0 | 269 while ( argc > 1 ) { |
| 270 if ( strcmp(argv[1], "-speedy") == 0 ) { | |
| 271 speedy = 1; | |
| 272 argv += 1; | |
| 273 argc -= 1; | |
| 274 } else | |
| 275 if ( strcmp(argv[1], "-nofade") == 0 ) { | |
| 276 nofade = 1; | |
| 277 argv += 1; | |
| 278 argc -= 1; | |
| 279 } else | |
| 280 if ( strcmp(argv[1], "-delay") == 0 ) { | |
| 281 if ( argv[2] ) { | |
| 282 delay = atoi(argv[2]); | |
| 283 argv += 2; | |
| 284 argc -= 2; | |
| 285 } else { | |
| 286 fprintf(stderr, | |
| 287 "The -delay option requires an argument\n"); | |
|
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288 quit(1); |
| 0 | 289 } |
| 290 } else | |
| 291 if ( strcmp(argv[1], "-width") == 0 ) { | |
| 292 if ( argv[2] && ((w = atoi(argv[2])) > 0) ) { | |
| 293 argv += 2; | |
| 294 argc -= 2; | |
| 295 } else { | |
| 296 fprintf(stderr, | |
| 297 "The -width option requires an argument\n"); | |
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298 quit(1); |
| 0 | 299 } |
| 300 } else | |
| 301 if ( strcmp(argv[1], "-height") == 0 ) { | |
| 302 if ( argv[2] && ((h = atoi(argv[2])) > 0) ) { | |
| 303 argv += 2; | |
| 304 argc -= 2; | |
| 305 } else { | |
| 306 fprintf(stderr, | |
| 307 "The -height option requires an argument\n"); | |
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308 quit(1); |
| 0 | 309 } |
| 310 } else | |
| 311 if ( strcmp(argv[1], "-bpp") == 0 ) { | |
| 312 if ( argv[2] ) { | |
| 313 desired_bpp = atoi(argv[2]); | |
| 314 argv += 2; | |
| 315 argc -= 2; | |
| 316 } else { | |
| 317 fprintf(stderr, | |
| 318 "The -bpp option requires an argument\n"); | |
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319 quit(1); |
| 0 | 320 } |
| 321 } else | |
| 322 if ( strcmp(argv[1], "-warp") == 0 ) { | |
| 323 video_flags |= SDL_HWPALETTE; | |
| 324 argv += 1; | |
| 325 argc -= 1; | |
| 326 } else | |
| 327 if ( strcmp(argv[1], "-hw") == 0 ) { | |
| 328 video_flags |= SDL_HWSURFACE; | |
| 329 argv += 1; | |
| 330 argc -= 1; | |
| 331 } else | |
| 332 if ( strcmp(argv[1], "-flip") == 0 ) { | |
| 333 video_flags |= SDL_DOUBLEBUF; | |
| 334 argv += 1; | |
| 335 argc -= 1; | |
| 336 } else | |
| 337 if ( strcmp(argv[1], "-fullscreen") == 0 ) { | |
| 338 video_flags |= SDL_FULLSCREEN; | |
| 339 argv += 1; | |
| 340 argc -= 1; | |
| 341 } else | |
| 342 break; | |
| 343 } | |
| 344 | |
| 345 /* Initialize the display */ | |
| 346 screen = SDL_SetVideoMode(w, h, desired_bpp, video_flags); | |
| 347 if ( screen == NULL ) { | |
| 348 fprintf(stderr, "Couldn't set %dx%dx%d video mode: %s\n", | |
| 349 w, h, desired_bpp, SDL_GetError()); | |
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350 quit(1); |
| 0 | 351 } |
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352 printf("Set%s %dx%dx%d mode\n", |
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353 screen->flags & SDL_FULLSCREEN ? " fullscreen" : "", |
| 0 | 354 screen->w, screen->h, screen->format->BitsPerPixel); |
| 355 printf("(video surface located in %s memory)\n", | |
| 356 (screen->flags&SDL_HWSURFACE) ? "video" : "system"); | |
| 357 if ( screen->flags & SDL_DOUBLEBUF ) { | |
| 358 printf("Double-buffering enabled\n"); | |
| 359 flip = 1; | |
| 360 } | |
| 361 | |
| 362 /* Set the window manager title bar */ | |
| 363 SDL_WM_SetCaption("SDL test window", "testwin"); | |
| 364 | |
| 365 /* Do all the drawing work */ | |
| 366 #ifdef BENCHMARK_SDL | |
| 367 then = SDL_GetTicks(); | |
| 368 DrawPict(screen, argv[1], speedy, flip, nofade); | |
| 369 now = SDL_GetTicks(); | |
| 370 printf("Time: %d milliseconds\n", now-then); | |
| 371 #else | |
| 372 DrawPict(screen, argv[1], speedy, flip, nofade); | |
| 373 #endif | |
| 374 SDL_Delay(delay*1000); | |
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375 SDL_Quit(); |
| 0 | 376 return(0); |
| 377 } |