Mercurial > hg > dmlib
annotate efu.c @ 100:f16d102dbbac
Add a function for setting bitmapped font palette.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Tue, 02 Oct 2012 20:33:01 +0300 |
| parents | c6cdaa675801 |
| children | 93fbce0e6591 |
| rev | line source |
|---|---|
| 0 | 1 #include "dmlib.h" |
| 2 #include "dmargs.h" | |
| 3 #include "dmvecmat.h" | |
|
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d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
4 #include "dmimage.h" |
|
62
daeb5d4f6bad
Do include "dmtext.h" where necessary.
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
5 #include "dmtext.h" |
| 0 | 6 #include <math.h> |
| 7 | |
| 8 #define DM_COLORS (256) | |
| 9 | |
| 10 char *optFontFile = "font.ttf", | |
|
7
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
11 *optBitmapFilename = "tnsp.png"; |
| 0 | 12 BOOL optBenchmark = FALSE; |
| 13 int optVFlags = SDL_SWSURFACE | SDL_HWPALETTE; | |
| 14 int optScrWidth = 640, optScrHeight = 480, optFontSize = 20, optScrDepth = 32; | |
| 15 int optBenchmarkLen = 20; | |
| 16 | |
| 17 DMOptArg optList[] = { | |
| 18 { 0, '?', "help", "Show this help", OPT_NONE }, | |
| 19 { 2, 'v', "verbose", "Be more verbose", OPT_NONE }, | |
| 20 { 3, 'f', "full", "Fullscreen", OPT_NONE }, | |
| 21 { 4, 'h', "hw", "Use SDL hardware surface", OPT_NONE }, | |
| 22 { 5, 's', "size", "Initial window size/resolution -s 640x480", OPT_ARGREQ }, | |
| 23 { 6, 'd', "depth", "Color depth of mode/window in bits (8/15/16/32)", OPT_ARGREQ }, | |
| 24 { 7, 'b', "bench", "Run in benchmark mode", OPT_NONE }, | |
| 25 }; | |
| 26 | |
| 27 const int optListN = sizeof(optList) / sizeof(optList[0]); | |
| 28 | |
| 29 | |
| 30 void argShowHelp() | |
| 31 { | |
| 32 dmArgsPrintHelp(stdout, optList, optListN); | |
| 33 } | |
| 34 | |
| 35 | |
| 36 BOOL argHandleOpt(const int optN, char *optArg, char *currArg) | |
| 37 { | |
| 38 switch (optN) { | |
| 39 case 0: | |
| 40 argShowHelp(); | |
| 41 exit(0); | |
| 42 break; | |
| 43 | |
| 44 case 2: | |
| 45 dmVerbosity++; | |
| 46 break; | |
| 47 | |
| 48 case 3: | |
| 49 optVFlags |= SDL_FULLSCREEN; | |
| 50 break; | |
| 51 | |
| 52 case 6: | |
| 53 if (optArg) | |
| 54 optScrDepth = atoi(optArg); | |
| 55 break; | |
| 56 | |
| 57 case 5: | |
| 58 { | |
| 59 int w, h; | |
| 60 if (sscanf(optArg, "%dx%d", &w, &h) == 2) | |
| 61 { | |
| 62 if (w < 320 || h < 200 || w > 3200 || h > 3200) | |
| 63 { | |
| 64 dmError("Invalid width or height: %d x %d\n", w, h); | |
| 65 return FALSE; | |
| 66 } | |
| 67 optScrWidth = w; | |
| 68 optScrHeight = h; | |
| 69 } | |
| 70 else | |
| 71 { | |
| 72 dmError("Invalid size argument '%s'.\n", optArg); | |
| 73 return FALSE; | |
| 74 } | |
| 75 } | |
| 76 break; | |
| 77 | |
| 78 case 7: | |
| 79 optBenchmark = TRUE; | |
| 80 break; | |
| 81 | |
| 82 default: | |
| 83 dmError("Unknown option '%s'.\n", currArg); | |
| 84 return FALSE; | |
| 85 } | |
| 86 | |
| 87 return TRUE; | |
| 88 } | |
| 89 | |
| 90 | |
| 91 void DM_MakePalette(SDL_Surface *scr) | |
| 92 { | |
| 93 SDL_Color pal[DM_COLORS]; | |
| 94 int n; | |
| 95 | |
| 96 for (n = 0; n < 256; n++) | |
| 97 { | |
| 98 pal[n].r = n; | |
| 99 pal[n].g = n; | |
| 100 pal[n].b = n; | |
| 101 } | |
| 102 | |
| 103 SDL_SetColors(scr, pal, 0, DM_COLORS); | |
| 104 } | |
| 105 | |
| 106 | |
| 107 void DM_PrintRect(FILE *f, SDL_Rect *r) | |
| 108 { | |
| 109 fprintf(f, "SDL_Rect <%d, %d : %d, %d>\n", | |
| 110 r->x, r->y, r->w, r->h); | |
| 111 } | |
| 112 | |
| 113 BOOL DM_InitializeVideo(SDL_Surface **screen) | |
| 114 { | |
| 115 *screen = SDL_SetVideoMode(optScrWidth, optScrHeight, optScrDepth, optVFlags | SDL_RESIZABLE); | |
| 116 if (*screen == NULL) | |
| 117 { | |
| 118 dmError("Can't SDL_SetVideoMode(): %s\n", SDL_GetError()); | |
| 119 return FALSE; | |
| 120 } | |
| 121 | |
| 122 #if 0 | |
| 123 SDL_Rect r; | |
| 124 r.x = -50; | |
| 125 r.y = 50; | |
| 126 r.w = 700; | |
| 127 r.h = 300; | |
| 128 DM_PrintRect(stderr, &r); | |
| 129 SDL_SetClipRect(*screen, &r); | |
| 130 DM_PrintRect(stderr, &r); | |
| 131 DM_PrintRect(stderr, &((*screen)->clip_rect)); | |
| 132 #endif | |
| 133 | |
| 134 return TRUE; | |
| 135 } | |
| 136 | |
| 137 void DM_Random(SDL_Surface *screen, int q) | |
| 138 { | |
| 139 Uint8 *pix = screen->pixels; | |
| 140 int xc, yc; | |
| 141 | |
| 142 for (yc = 0; yc < screen->h; yc++) | |
| 143 { | |
| 144 Uint8 *dp = pix; | |
| 145 | |
| 146 for (xc = 0; xc < screen->w; xc++) | |
| 147 *dp++ = yc + (xc ^ q) + (yc & q); | |
| 148 | |
| 149 pix += screen->pitch; | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 void DM_Perlin(SDL_Surface *screen, float f) | |
| 154 { | |
| 155 Uint8 *pix = screen->pixels; | |
| 156 int xc, yc; | |
| 157 | |
| 158 for (yc = 0; yc < screen->h; yc++) | |
| 159 { | |
| 160 Uint8 *dp = pix; | |
| 161 | |
| 162 for (xc = 0; xc < screen->w; xc++) | |
| 163 { | |
| 164 *dp++ = 128 + dmPerlinNoise2D(xc, yc, 0.01, 0.1, 3) / 34.0; | |
| 165 } | |
| 166 | |
| 167 pix += screen->pitch; | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 | |
| 172 #define QWIDTH 256 | |
| 173 #define QHEIGHT 160 | |
| 174 | |
| 175 typedef Uint8 DMBlockMap[QHEIGHT][QWIDTH]; | |
| 176 | |
| 177 | |
| 178 static DMFloat dmClip(DMFloat a) | |
| 179 { | |
| 180 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); | |
| 181 } | |
| 182 | |
| 183 | |
| 184 void dmMakeBumpMap(DMBlockMap map, DMFloat q, DMFloat m) | |
| 185 { | |
| 186 int x, y; | |
| 187 for (y = 0; y < QHEIGHT; y++) | |
| 188 for (x = 0; x < QWIDTH; x++) | |
| 189 { | |
| 190 DMFloat f = 0.40f + dmPerlinNoise2D(x, y, 1.1f, q, 2); | |
| 191 map[y][x] = (int) (dmClip(f) * m); | |
| 192 } | |
| 193 } | |
| 194 | |
| 195 | |
| 196 void dmShadowTraceHeightMap(DMBlockMap lightMap, DMBlockMap pheightMap, DMVector *light) | |
| 197 { | |
| 198 int i, j; | |
| 199 | |
| 200 light->z = 150; | |
| 201 | |
| 202 for (j = 0; j < QHEIGHT; j++) | |
| 203 for (i = 0; i < QWIDTH; i++) | |
| 204 { | |
| 205 DMVector vr, vl, va; | |
| 206 DMFloat vrayLen, vfactor; | |
| 207 int vlen; | |
| 208 BOOL wasHit; | |
| 209 | |
| 210 // Perform shadow occlusion via simplistic raytracing | |
| 211 vr.x = i; | |
| 212 vr.y = j; | |
| 213 vr.z = 200; //light->z; // - 10.0; | |
| 214 | |
| 215 // Calculate light vector vector | |
| 216 dm_vector_sub_r(&vl, &vr, light); | |
| 217 vrayLen = dm_vector_length(&vl); | |
| 218 | |
| 219 #if 1 | |
| 220 dm_vector_copy(&va, &vl); | |
| 221 dm_vector_normalize(&va); | |
| 222 dm_vector_copy(&vr, light); | |
| 223 | |
| 224 vlen = 0; | |
| 225 wasHit = FALSE; | |
| 226 do | |
| 227 { | |
| 228 float h; | |
| 229 | |
| 230 // If ray is inside the heightmap, get value | |
| 231 if (vr.x >= 0 && vr.y >= 0 && vr.x < QWIDTH && vr.y < QHEIGHT) | |
| 232 h = pheightMap[(int) vr.y][(int) vr.x]; | |
| 233 else | |
| 234 break; | |
| 235 | |
| 236 // Check for hits | |
| 237 if (h > vr.z) | |
| 238 wasHit = TRUE; | |
| 239 else | |
| 240 { | |
| 241 // Move forwards | |
| 242 dm_vector_add(&vr, &va); | |
| 243 vlen++; | |
| 244 } | |
| 245 } | |
| 246 while (!wasHit && vlen <= vrayLen); | |
| 247 | |
| 248 // Check if the ray hit something, e.g. is this point occluded? | |
| 249 if (wasHit && vlen < vrayLen) | |
| 250 { | |
| 251 vfactor = vlen * 0.05; | |
| 252 } | |
| 253 else | |
| 254 vfactor = vlen * 0.001; | |
| 255 #endif | |
| 256 | |
| 257 #if 0 | |
| 258 { | |
| 259 /* Calculate light's intensity based on the angle it "hits" | |
| 260 * | |
| 261 * 1) Calculate the vectors that form the imaginary "plane" | |
| 262 * 2) Cross-product -> normal vector of the plane | |
| 263 * 2) Normalize the normal vector | |
| 264 * 3) Calculate light vector's hit angle by dot product | |
| 265 */ | |
| 266 DMVector v1, v2; | |
| 267 DMFloat c; | |
| 268 | |
| 269 v1.x = 2.0f; | |
| 270 v1.y = 0.0f; | |
| 271 v1.z = (DMFloat) (pheightMap[j][i] - pheightMap[j][i + 1]); | |
| 272 | |
| 273 v2.x = 0.0f; | |
| 274 v2.y = 2.0f; | |
| 275 v2.z = (DMFloat) (pheightMap[j][i] - pheightMap[j + 1][i]); | |
| 276 | |
| 277 dm_vector_cross(&vr, &v1, &v2); | |
| 278 dm_vector_normalize(&vr); | |
| 279 dm_vector_normalize(&vl); | |
| 280 c = dm_vector_dot(&vl, &vr); | |
| 281 | |
| 282 vrayLen = 255 - (vrayLen * 0.1) * vrayLen + (c * 128.0f) + (vfactor * vfactor * 1255); | |
| 283 } | |
| 284 #else | |
| 285 vrayLen = 255 - vrayLen * vrayLen * (vfactor * vfactor); | |
| 286 if (vrayLen < 0) vrayLen = 0; | |
| 287 vrayLen -= pheightMap[j][i]; | |
| 288 #endif | |
| 289 | |
| 290 // Clip result | |
| 291 if (vrayLen < 0) | |
| 292 vrayLen = 0; | |
| 293 else if (vrayLen > 255.0f) | |
| 294 vrayLen = 255.0f; | |
| 295 | |
| 296 lightMap[j][i] = vrayLen; | |
| 297 } | |
| 298 } | |
| 299 | |
| 300 | |
| 301 int main(int argc, char *argv[]) | |
| 302 { | |
| 303 SDL_Surface *screen = NULL, *bmap = NULL, *logo = NULL; | |
| 304 TTF_Font *font = NULL; | |
| 305 SDL_Color fontcol={255,155,155,0}; | |
| 306 SDL_Event event; | |
| 307 int mouseX, mouseY; | |
|
7
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
308 BOOL initSDL = FALSE, initTTF = FALSE, exitFlag, showMap = FALSE; |
| 0 | 309 |
| 310 if (!dmArgsProcess(argc, argv, optList, optListN, | |
| 311 argHandleOpt, NULL, FALSE)) | |
| 312 exit(1); | |
| 313 | |
| 314 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0) | |
| 315 { | |
| 316 dmError("Could not initialize SDL: %s\n", SDL_GetError()); | |
| 317 goto error_exit; | |
| 318 } | |
| 319 initSDL = TRUE; | |
| 320 | |
| 321 | |
| 322 if (TTF_Init() < 0) | |
| 323 { | |
| 324 dmError("Could not initialize FreeType/TTF: %s\n", SDL_GetError()); | |
| 325 goto error_exit; | |
| 326 } | |
| 327 initTTF = TRUE; | |
| 328 | |
| 329 font = TTF_OpenFont(optFontFile, optFontSize); | |
| 330 if (font == NULL) | |
| 331 { | |
| 332 dmError("Could not load TTF font '%s' (%d): %s\n", | |
| 333 optFontFile, optFontSize, SDL_GetError()); | |
| 334 goto error_exit; | |
| 335 } | |
| 336 TTF_SetFontStyle(font, TTF_STYLE_NORMAL); | |
| 337 | |
|
7
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
338 |
|
77
c6cdaa675801
Add the file mode parameter to dmf_create_stdio() calls, and throw in some
Matti Hamalainen <ccr@tnsp.org>
parents:
62
diff
changeset
|
339 DMResource *res = dmf_create_stdio(optBitmapFilename, "rb"); |
|
7
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
340 if (res == NULL) |
| 0 | 341 { |
|
7
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
342 dmError("Could not open resource file '%s'.\n", optBitmapFilename); |
| 0 | 343 goto error_exit; |
| 344 } | |
|
7
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
345 logo = dmLoadImage(res); |
|
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
346 dmf_close(res); |
| 0 | 347 if (logo == NULL) |
| 348 { | |
| 349 dmError("Could not load image file '%s'.\n", optBitmapFilename); | |
| 350 goto error_exit; | |
| 351 } | |
|
7
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
352 |
|
d427763f113a
Fix "efu" test, use dmImage instead of SDL_image.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
353 |
| 0 | 354 if (optBenchmark) |
| 355 { | |
| 356 screen = SDL_CreateRGBSurface(SDL_SWSURFACE, optScrWidth, optScrHeight, optScrDepth, 0, 0, 0, 0); | |
| 357 if (screen == NULL) | |
| 358 { | |
| 359 dmError("Could not create screen surface.\n"); | |
| 360 goto error_exit; | |
| 361 } | |
| 362 | |
| 363 dmMsg(0, "Benchmark mode, not opening window.\n"); | |
| 364 } | |
| 365 else | |
| 366 { | |
| 367 if (!DM_InitializeVideo(&screen)) | |
| 368 goto error_exit; | |
| 369 | |
| 370 SDL_WM_SetCaption("Halleluja", "DMT"); | |
| 371 } | |
| 372 | |
| 373 dmPerlinInit(); | |
| 374 | |
| 375 bmap = SDL_CreateRGBSurface(SDL_SWSURFACE, QWIDTH, QHEIGHT, 8, 0, 0, 0, 0); | |
| 376 DM_MakePalette(bmap); | |
| 377 DM_Random(bmap, 15); | |
| 378 | |
| 379 DMVector light; | |
| 380 DMBlockMap heightMap; | |
| 381 light.x = light.y = 128; | |
| 382 light.z = 128; | |
| 383 dmMakeBumpMap(heightMap, 0.06, 254); | |
| 384 | |
| 385 | |
| 386 | |
| 387 int numFrames = 0, startTime = SDL_GetTicks(), endTime = 0; | |
| 388 exitFlag = FALSE; | |
| 389 | |
| 390 if (optBenchmark) | |
| 391 dmMsg(0, "Starting benchmark, running for %d seconds.\n", optBenchmarkLen); | |
| 392 | |
| 393 while (!exitFlag) | |
| 394 { | |
| 395 if (!optBenchmark) | |
| 396 { | |
| 397 while (SDL_PollEvent(&event)) | |
| 398 switch (event.type) | |
| 399 { | |
| 400 case SDL_KEYDOWN: | |
| 401 switch (event.key.keysym.sym) | |
| 402 { | |
| 403 case SDLK_ESCAPE: exitFlag = TRUE; break; | |
| 404 | |
| 405 case SDLK_F1: | |
| 406 DM_Random(bmap, (SDL_GetTicks() / 10) % 1000); | |
| 407 break; | |
| 408 | |
| 409 case SDLK_F2: | |
| 410 DM_Perlin(bmap, SDL_GetTicks() / 100); | |
| 411 break; | |
| 412 | |
| 413 case SDLK_F5: | |
| 414 showMap = !showMap; | |
| 415 break; | |
| 416 | |
| 417 default: | |
| 418 break; | |
| 419 } | |
| 420 | |
| 421 break; | |
| 422 | |
| 423 case SDL_VIDEORESIZE: | |
| 424 optScrWidth = event.resize.w; | |
| 425 optScrHeight = event.resize.h; | |
| 426 | |
| 427 if (!DM_InitializeVideo(&screen)) | |
| 428 goto error_exit; | |
| 429 | |
| 430 break; | |
| 431 | |
| 432 case SDL_VIDEOEXPOSE: | |
| 433 break; | |
| 434 | |
| 435 case SDL_QUIT: | |
| 436 exit(0); | |
| 437 } | |
| 438 | |
| 439 SDL_GetMouseState(&mouseX, &mouseY); | |
| 440 light.x = ((DMFloat) mouseX * QWIDTH) / (DMFloat) optScrWidth; | |
| 441 light.y = ((DMFloat) mouseY * QHEIGHT) / (DMFloat) optScrHeight; | |
| 442 } | |
| 443 | |
| 444 if (!optBenchmark && SDL_MUSTLOCK(screen) != 0 && SDL_LockSurface(screen) != 0) | |
| 445 { | |
| 446 dmError("Can't lock surface.\n"); | |
| 447 goto error_exit; | |
| 448 } | |
| 449 | |
| 450 | |
| 451 if (showMap) | |
| 452 memcpy(bmap->pixels, heightMap, QWIDTH * QHEIGHT); | |
| 453 else | |
| 454 dmShadowTraceHeightMap(bmap->pixels, logo->pixels, &light); | |
| 455 | |
| 456 dmScaledBlitSurfaceAny(bmap, 0, 0, screen->w, screen->h, screen, DMD_NONE); | |
| 457 | |
| 458 | |
| 459 | |
| 460 if (!optBenchmark) | |
| 461 { | |
| 462 dmDrawTTFText(screen, font, fontcol, 0, 0, "%3.1f FPS", | |
| 463 (float) (numFrames * 1000.0f) / (float) (endTime - startTime)); | |
| 464 | |
| 465 if (SDL_MUSTLOCK(screen) != 0) | |
| 466 SDL_UnlockSurface(screen); | |
| 467 | |
| 468 SDL_Flip(screen); | |
| 469 SDL_Delay(10); | |
| 470 } | |
| 471 | |
| 472 endTime = SDL_GetTicks(); | |
| 473 numFrames++; | |
| 474 | |
| 475 if (optBenchmark) | |
| 476 { | |
| 477 if (endTime - startTime > optBenchmarkLen * 1000) | |
| 478 exitFlag = TRUE; | |
| 479 } | |
| 480 } | |
| 481 | |
| 482 // Print benchmark results | |
| 483 dmMsg(0, "%d frames in %d ms, fps = %1.3f\n", | |
| 484 numFrames, endTime - startTime, | |
| 485 (float) (numFrames * 1000.0f) / (float) (endTime - startTime)); | |
| 486 | |
| 487 | |
| 488 error_exit: | |
| 489 dmMsg(0, "Shutting down dmlib.\n"); | |
| 490 if (screen) | |
| 491 SDL_FreeSurface(screen); | |
| 492 | |
| 493 if (logo) | |
| 494 SDL_FreeSurface(logo); | |
| 495 | |
| 496 if (font) | |
| 497 TTF_CloseFont(font); | |
| 498 | |
| 499 if (initSDL) | |
| 500 SDL_Quit(); | |
| 501 | |
| 502 if (initTTF) | |
| 503 TTF_Quit(); | |
| 504 | |
| 505 return 0; | |
| 506 } |