| 1 | |
| 2 | /* Simple program -- figure out what kind of video display we have */ |
| 3 | |
| 4 | #include <stdlib.h> |
| 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
| 7 | #include <string.h> |
| 8 | |
| 9 | #include "SDL.h" |
| 10 | |
| 11 | #define NUM_BLITS 10 |
| 12 | #define NUM_UPDATES 500 |
| 13 | |
| 14 | #define FLAG_MASK (SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF | \ |
| 15 | SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCEL | \ |
| 16 | SDL_RLEACCELOK) |
| 17 | |
| 18 | void PrintFlags(Uint32 flags) |
| 19 | { |
| 20 | printf("0x%8.8x", (flags & FLAG_MASK)); |
| 21 | if ( flags & SDL_HWSURFACE ) { |
| 22 | printf(" SDL_HWSURFACE"); |
| 23 | } else { |
| 24 | printf(" SDL_SWSURFACE"); |
| 25 | } |
| 26 | if ( flags & SDL_FULLSCREEN ) { |
| 27 | printf(" | SDL_FULLSCREEN"); |
| 28 | } |
| 29 | if ( flags & SDL_DOUBLEBUF ) { |
| 30 | printf(" | SDL_DOUBLEBUF"); |
| 31 | } |
| 32 | if ( flags & SDL_SRCCOLORKEY ) { |
| 33 | printf(" | SDL_SRCCOLORKEY"); |
| 34 | } |
| 35 | if ( flags & SDL_SRCALPHA ) { |
| 36 | printf(" | SDL_SRCALPHA"); |
| 37 | } |
| 38 | if ( flags & SDL_RLEACCEL ) { |
| 39 | printf(" | SDL_RLEACCEL"); |
| 40 | } |
| 41 | if ( flags & SDL_RLEACCELOK ) { |
| 42 | printf(" | SDL_RLEACCELOK"); |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | int RunBlitTests(SDL_Surface *screen, SDL_Surface *bmp, int blitcount) |
| 47 | { |
| 48 | int i, j; |
| 49 | int maxx; |
| 50 | int maxy; |
| 51 | SDL_Rect dst; |
| 52 | |
| 53 | maxx = (int)screen->w - bmp->w + 1; |
| 54 | maxy = (int)screen->h - bmp->h + 1; |
| 55 | for ( i = 0; i < NUM_UPDATES; ++i ) { |
| 56 | for ( j = 0; j < blitcount; ++j ) { |
| 57 | if ( maxx ) { |
| 58 | dst.x = rand() % maxx; |
| 59 | } else { |
| 60 | dst.x = 0; |
| 61 | } |
| 62 | if ( maxy ) { |
| 63 | dst.y = rand() % maxy; |
| 64 | } else { |
| 65 | dst.y = 0; |
| 66 | } |
| 67 | dst.w = bmp->w; |
| 68 | dst.h = bmp->h; |
| 69 | SDL_BlitSurface(bmp, NULL, screen, &dst); |
| 70 | } |
| 71 | SDL_Flip(screen); |
| 72 | } |
| 73 | |
| 74 | return i; |
| 75 | } |
| 76 | |
| 77 | int RunModeTests(SDL_Surface *screen) |
| 78 | { |
| 79 | Uint32 then, now; |
| 80 | Uint32 frames; |
| 81 | float seconds; |
| 82 | int i; |
| 83 | Uint8 r, g, b; |
| 84 | SDL_Surface *bmp, *bmpcc, *tmp; |
| 85 | SDL_Event event; |
| 86 | |
| 87 | while ( SDL_PollEvent(&event) ) { |
| 88 | if ( event.type == SDL_KEYDOWN ) |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | /* First test fills and screen update speed */ |
| 93 | printf("Running color fill and fullscreen update test\n"); |
| 94 | then = SDL_GetTicks(); |
| 95 | frames = 0; |
| 96 | for ( i = 0; i < 256; ++i ) { |
| 97 | r = i; |
| 98 | g = 0; |
| 99 | b = 0; |
| 100 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b)); |
| 101 | SDL_Flip(screen); |
| 102 | ++frames; |
| 103 | } |
| 104 | for ( i = 0; i < 256; ++i ) { |
| 105 | r = 0; |
| 106 | g = i; |
| 107 | b = 0; |
| 108 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b)); |
| 109 | SDL_Flip(screen); |
| 110 | ++frames; |
| 111 | } |
| 112 | for ( i = 0; i < 256; ++i ) { |
| 113 | r = 0; |
| 114 | g = 0; |
| 115 | b = i; |
| 116 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b)); |
| 117 | SDL_Flip(screen); |
| 118 | ++frames; |
| 119 | } |
| 120 | now = SDL_GetTicks(); |
| 121 | seconds = (float)(now - then) / 1000.0f; |
| 122 | if ( seconds > 0.0f ) { |
| 123 | printf("%d fills and flips in %2.2f seconds, %2.2f FPS\n", frames, seconds, (float)frames / seconds); |
| 124 | } else { |
| 125 | printf("%d fills and flips in zero seconds!n", frames); |
| 126 | } |
| 127 | |
| 128 | /* clear the screen after fill test */ |
| 129 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); |
| 130 | SDL_Flip(screen); |
| 131 | |
| 132 | while ( SDL_PollEvent(&event) ) { |
| 133 | if ( event.type == SDL_KEYDOWN ) |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | /* run the generic blit test */ |
| 138 | bmp = SDL_LoadBMP("sample.bmp"); |
| 139 | if ( ! bmp ) { |
| 140 | printf("Couldn't load sample.bmp: %s\n", SDL_GetError()); |
| 141 | return 0; |
| 142 | } |
| 143 | printf("Running freshly loaded blit test: %dx%d at %d bpp, flags: ", |
| 144 | bmp->w, bmp->h, bmp->format->BitsPerPixel); |
| 145 | PrintFlags(bmp->flags); |
| 146 | printf("\n"); |
| 147 | then = SDL_GetTicks(); |
| 148 | frames = RunBlitTests(screen, bmp, NUM_BLITS); |
| 149 | now = SDL_GetTicks(); |
| 150 | seconds = (float)(now - then) / 1000.0f; |
| 151 | if ( seconds > 0.0f ) { |
| 152 | printf("%d blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds); |
| 153 | } else { |
| 154 | printf("%d blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames); |
| 155 | } |
| 156 | |
| 157 | /* clear the screen after blit test */ |
| 158 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); |
| 159 | SDL_Flip(screen); |
| 160 | |
| 161 | while ( SDL_PollEvent(&event) ) { |
| 162 | if ( event.type == SDL_KEYDOWN ) |
| 163 | return 0; |
| 164 | } |
| 165 | |
| 166 | /* run the colorkeyed blit test */ |
| 167 | bmpcc = SDL_LoadBMP("sample.bmp"); |
| 168 | if ( ! bmpcc ) { |
| 169 | printf("Couldn't load sample.bmp: %s\n", SDL_GetError()); |
| 170 | return 0; |
| 171 | } |
| 172 | printf("Running freshly loaded cc blit test: %dx%d at %d bpp, flags: ", |
| 173 | bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel); |
| 174 | SDL_SetColorKey(bmpcc, SDL_SRCCOLORKEY | SDL_RLEACCEL, *(Uint8 *)bmpcc->pixels); |
| 175 | |
| 176 | PrintFlags(bmpcc->flags); |
| 177 | printf("\n"); |
| 178 | then = SDL_GetTicks(); |
| 179 | frames = RunBlitTests(screen, bmpcc, NUM_BLITS); |
| 180 | now = SDL_GetTicks(); |
| 181 | seconds = (float)(now - then) / 1000.0f; |
| 182 | if ( seconds > 0.0f ) { |
| 183 | printf("%d cc blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds); |
| 184 | } else { |
| 185 | printf("%d cc blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames); |
| 186 | } |
| 187 | |
| 188 | /* clear the screen after cc blit test */ |
| 189 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); |
| 190 | SDL_Flip(screen); |
| 191 | |
| 192 | while ( SDL_PollEvent(&event) ) { |
| 193 | if ( event.type == SDL_KEYDOWN ) |
| 194 | return 0; |
| 195 | } |
| 196 | |
| 197 | /* run the generic blit test */ |
| 198 | tmp = bmp; |
| 199 | bmp = SDL_DisplayFormat(bmp); |
| 200 | SDL_FreeSurface(tmp); |
| 201 | if ( ! bmp ) { |
| 202 | printf("Couldn't convert sample.bmp: %s\n", SDL_GetError()); |
| 203 | return 0; |
| 204 | } |
| 205 | printf("Running display format blit test: %dx%d at %d bpp, flags: ", |
| 206 | bmp->w, bmp->h, bmp->format->BitsPerPixel); |
| 207 | PrintFlags(bmp->flags); |
| 208 | printf("\n"); |
| 209 | then = SDL_GetTicks(); |
| 210 | frames = RunBlitTests(screen, bmp, NUM_BLITS); |
| 211 | now = SDL_GetTicks(); |
| 212 | seconds = (float)(now - then) / 1000.0f; |
| 213 | if ( seconds > 0.0f ) { |
| 214 | printf("%d blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds); |
| 215 | } else { |
| 216 | printf("%d blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames); |
| 217 | } |
| 218 | |
| 219 | /* clear the screen after blit test */ |
| 220 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); |
| 221 | SDL_Flip(screen); |
| 222 | |
| 223 | while ( SDL_PollEvent(&event) ) { |
| 224 | if ( event.type == SDL_KEYDOWN ) |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | /* run the colorkeyed blit test */ |
| 229 | tmp = bmpcc; |
| 230 | bmpcc = SDL_DisplayFormat(bmpcc); |
| 231 | SDL_FreeSurface(tmp); |
| 232 | if ( ! bmpcc ) { |
| 233 | printf("Couldn't convert sample.bmp: %s\n", SDL_GetError()); |
| 234 | return 0; |
| 235 | } |
| 236 | printf("Running display format cc blit test: %dx%d at %d bpp, flags: ", |
| 237 | bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel); |
| 238 | PrintFlags(bmpcc->flags); |
| 239 | printf("\n"); |
| 240 | then = SDL_GetTicks(); |
| 241 | frames = RunBlitTests(screen, bmpcc, NUM_BLITS); |
| 242 | now = SDL_GetTicks(); |
| 243 | seconds = (float)(now - then) / 1000.0f; |
| 244 | if ( seconds > 0.0f ) { |
| 245 | printf("%d cc blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds); |
| 246 | } else { |
| 247 | printf("%d cc blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames); |
| 248 | } |
| 249 | |
| 250 | /* clear the screen after cc blit test */ |
| 251 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); |
| 252 | SDL_Flip(screen); |
| 253 | |
| 254 | while ( SDL_PollEvent(&event) ) { |
| 255 | if ( event.type == SDL_KEYDOWN ) |
| 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | /* run the alpha blit test only if screen bpp>8 */ |
| 260 | if (bmp->format->BitsPerPixel>8) |
| 261 | { |
| 262 | SDL_FreeSurface(bmp); |
| 263 | bmp = SDL_LoadBMP("sample.bmp"); |
| 264 | SDL_SetAlpha(bmp, SDL_SRCALPHA, 85); /* 85 - 33% alpha */ |
| 265 | tmp = bmp; |
| 266 | bmp = SDL_DisplayFormat(bmp); |
| 267 | SDL_FreeSurface(tmp); |
| 268 | if ( ! bmp ) { |
| 269 | printf("Couldn't convert sample.bmp: %s\n", SDL_GetError()); |
| 270 | return 0; |
| 271 | } |
| 272 | printf("Running display format alpha blit test: %dx%d at %d bpp, flags: ", |
| 273 | bmp->w, bmp->h, bmp->format->BitsPerPixel); |
| 274 | PrintFlags(bmp->flags); |
| 275 | printf("\n"); |
| 276 | then = SDL_GetTicks(); |
| 277 | frames = RunBlitTests(screen, bmp, NUM_BLITS); |
| 278 | now = SDL_GetTicks(); |
| 279 | seconds = (float)(now - then) / 1000.0f; |
| 280 | if ( seconds > 0.0f ) { |
| 281 | printf("%d alpha blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds); |
| 282 | } else { |
| 283 | printf("%d alpha blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames); |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | /* clear the screen after alpha blit test */ |
| 288 | SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); |
| 289 | SDL_Flip(screen); |
| 290 | |
| 291 | while ( SDL_PollEvent(&event) ) { |
| 292 | if ( event.type == SDL_KEYDOWN ) |
| 293 | return 0; |
| 294 | } |
| 295 | |
| 296 | /* run the cc+alpha blit test only if screen bpp>8 */ |
| 297 | if (bmp->format->BitsPerPixel>8) |
| 298 | { |
| 299 | SDL_FreeSurface(bmpcc); |
| 300 | bmpcc = SDL_LoadBMP("sample.bmp"); |
| 301 | SDL_SetAlpha(bmpcc, SDL_SRCALPHA, 85); /* 85 - 33% alpha */ |
| 302 | SDL_SetColorKey(bmpcc, SDL_SRCCOLORKEY | SDL_RLEACCEL, *(Uint8 *)bmpcc->pixels); |
| 303 | tmp = bmpcc; |
| 304 | bmpcc = SDL_DisplayFormat(bmpcc); |
| 305 | SDL_FreeSurface(tmp); |
| 306 | if ( ! bmpcc ) { |
| 307 | printf("Couldn't convert sample.bmp: %s\n", SDL_GetError()); |
| 308 | return 0; |
| 309 | } |
| 310 | printf("Running display format cc+alpha blit test: %dx%d at %d bpp, flags: ", |
| 311 | bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel); |
| 312 | PrintFlags(bmpcc->flags); |
| 313 | printf("\n"); |
| 314 | then = SDL_GetTicks(); |
| 315 | frames = RunBlitTests(screen, bmpcc, NUM_BLITS); |
| 316 | now = SDL_GetTicks(); |
| 317 | seconds = (float)(now - then) / 1000.0f; |
| 318 | if ( seconds > 0.0f ) { |
| 319 | printf("%d cc+alpha blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds); |
| 320 | } else { |
| 321 | printf("%d cc+alpha blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames); |
| 322 | } |
| 323 | } |
| 324 | |
| 325 | SDL_FreeSurface(bmpcc); |
| 326 | SDL_FreeSurface(bmp); |
| 327 | |
| 328 | while ( SDL_PollEvent(&event) ) { |
| 329 | if ( event.type == SDL_KEYDOWN ) |
| 330 | return 0; |
| 331 | } |
| 332 | return 1; |
| 333 | } |
| 334 | |
| 335 | void RunVideoTests() |
| 336 | { |
| 337 | static const struct { |
| 338 | int w, h, bpp; |
| 339 | } mode_list[] = { |
| 340 | { 640, 480, 8 }, { 640, 480, 16 }, { 640, 480, 32 }, |
| 341 | { 800, 600, 8 }, { 800, 600, 16 }, { 800, 600, 32 }, |
| 342 | { 1024, 768, 8 }, { 1024, 768, 16 }, { 1024, 768, 32 } |
| 343 | }; |
| 344 | static const Uint32 flags[] = { |
| 345 | (SDL_SWSURFACE), |
| 346 | (SDL_SWSURFACE | SDL_FULLSCREEN), |
| 347 | (SDL_HWSURFACE | SDL_FULLSCREEN), |
| 348 | (SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF) |
| 349 | }; |
| 350 | int i, j; |
| 351 | SDL_Surface *screen; |
| 352 | |
| 353 | /* Test out several different video mode combinations */ |
| 354 | SDL_WM_SetCaption("SDL Video Benchmark", "vidtest"); |
| 355 | SDL_ShowCursor(0); |
| 356 | for ( i = 0; i < SDL_TABLESIZE(mode_list); ++i ) { |
| 357 | for ( j = 0; j < SDL_TABLESIZE(flags); ++j ) { |
| 358 | printf("===================================\n"); |
| 359 | printf("Setting video mode: %dx%d at %d bpp, flags: ", |
| 360 | mode_list[i].w, |
| 361 | mode_list[i].h, |
| 362 | mode_list[i].bpp); |
| 363 | PrintFlags(flags[j]); |
| 364 | printf("\n"); |
| 365 | screen = SDL_SetVideoMode(mode_list[i].w, |
| 366 | mode_list[i].h, |
| 367 | mode_list[i].bpp, |
| 368 | flags[j]); |
| 369 | if ( ! screen ) { |
| 370 | printf("Setting video mode failed: %s\n", SDL_GetError()); |
| 371 | continue; |
| 372 | } |
| 373 | if ( (screen->flags & FLAG_MASK) != flags[j] ) { |
| 374 | printf("Flags didn't match: "); |
| 375 | PrintFlags(screen->flags); |
| 376 | printf("\n"); |
| 377 | continue; |
| 378 | } |
| 379 | if ( ! RunModeTests(screen) ) { |
| 380 | return; |
| 381 | } |
| 382 | } |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | int main(int argc, char *argv[]) |
| 387 | { |
| 388 | const SDL_VideoInfo *info; |
| 389 | int i; |
| 390 | SDL_Rect **modes; |
| 391 | char driver[128]; |
| 392 | |
| 393 | if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { |
| 394 | fprintf(stderr, |
| 395 | "Couldn't initialize SDL: %s\n", SDL_GetError()); |
| 396 | exit(1); |
| 397 | } |
| 398 | if ( SDL_VideoDriverName(driver, sizeof(driver)) ) { |
| 399 | printf("Video driver: %s\n", driver); |
| 400 | } |
| 401 | info = SDL_GetVideoInfo(); |
| 402 | printf( |
| 403 | "Current display: %dx%d, %d bits-per-pixel\n", |
| 404 | info->current_w, info->current_h, info->vfmt->BitsPerPixel); |
| 405 | if ( info->vfmt->palette == NULL ) { |
| 406 | printf(" Red Mask = 0x%.8x\n", info->vfmt->Rmask); |
| 407 | printf(" Green Mask = 0x%.8x\n", info->vfmt->Gmask); |
| 408 | printf(" Blue Mask = 0x%.8x\n", info->vfmt->Bmask); |
| 409 | } |
| 410 | /* Print available fullscreen video modes */ |
| 411 | modes = SDL_ListModes(NULL, SDL_FULLSCREEN); |
| 412 | if ( modes == (SDL_Rect **)0 ) { |
| 413 | printf("No available fullscreen video modes\n"); |
| 414 | } else |
| 415 | if ( modes == (SDL_Rect **)-1 ) { |
| 416 | printf("No special fullscreen video modes\n"); |
| 417 | } else { |
| 418 | printf("Fullscreen video modes:\n"); |
| 419 | for ( i=0; modes[i]; ++i ) { |
| 420 | printf("\t%dx%dx%d\n", modes[i]->w, modes[i]->h, info->vfmt->BitsPerPixel); |
| 421 | } |
| 422 | } |
| 423 | if ( info->wm_available ) { |
| 424 | printf("A window manager is available\n"); |
| 425 | } |
| 426 | if ( info->hw_available ) { |
| 427 | printf("Hardware surfaces are available (%dK video memory)\n", |
| 428 | info->video_mem); |
| 429 | } |
| 430 | if ( info->blit_hw ) { |
| 431 | printf( |
| 432 | "Copy blits between hardware surfaces are accelerated\n"); |
| 433 | } |
| 434 | if ( info->blit_hw_CC ) { |
| 435 | printf( |
| 436 | "Colorkey blits between hardware surfaces are accelerated\n"); |
| 437 | } |
| 438 | if ( info->blit_hw_A ) { |
| 439 | printf( |
| 440 | "Alpha blits between hardware surfaces are accelerated\n"); |
| 441 | } |
| 442 | if ( info->blit_sw ) { |
| 443 | printf( |
| 444 | "Copy blits from software surfaces to hardware surfaces are accelerated\n"); |
| 445 | } |
| 446 | if ( info->blit_sw_CC ) { |
| 447 | printf( |
| 448 | "Colorkey blits from software surfaces to hardware surfaces are accelerated\n"); |
| 449 | } |
| 450 | if ( info->blit_sw_A ) { |
| 451 | printf( |
| 452 | "Alpha blits from software surfaces to hardware surfaces are accelerated\n"); |
| 453 | } |
| 454 | if ( info->blit_fill ) { |
| 455 | printf( |
| 456 | "Color fills on hardware surfaces are accelerated\n"); |
| 457 | } |
| 458 | |
| 459 | if ( argv[1] && (strcmp(argv[1], "-benchmark") == 0) ) { |
| 460 | RunVideoTests(); |
| 461 | } |
| 462 | |
| 463 | SDL_Quit(); |
| 464 | return(0); |
| 465 | } |