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annotate src/main.cpp @ 0:5019d031b485

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initial commit
author John Tsiombikas <nuclear@member.fsf.org>
date Wed, 05 Jun 2013 22:33:37 +0300
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children
rev   line source
nuclear@0 1 #include <SDL/SDL.h>
nuclear@0 2 #include <math.h>
nuclear@0 3
nuclear@0 4 #include "main.h"
nuclear@0 5 #include "bitfonts.h"
nuclear@0 6
nuclear@0 7 #include "blitting.h"
nuclear@0 8 #include "plasma.h"
nuclear@0 9 #include "rotozoomer.h"
nuclear@0 10 #include "radialblur.h"
nuclear@0 11 #include "bunny3d.h"
nuclear@0 12 #include "render3d.h"
nuclear@0 13
nuclear@0 14 #if defined ProjectCaanoo || defined ProjectWiz
nuclear@0 15 #include <unistd.h>
nuclear@0 16 #endif
nuclear@0 17
nuclear@0 18 #ifdef ProjectWin
nuclear@0 19 #undef main
nuclear@0 20 #endif
nuclear@0 21
nuclear@0 22 SDL_Surface *screen = NULL;
nuclear@0 23 SDL_Joystick *joy = NULL;
nuclear@0 24
nuclear@0 25 int fps = 0, pframe = 0, nframe = 0, atime = 0;
nuclear@0 26 int frametime = 0;
nuclear@0 27 int quit = 0;
nuclear@0 28 int desc_next = 0;
nuclear@0 29
nuclear@0 30 int where_is = MENU;
nuclear@0 31
nuclear@0 32 // -------------------------------------
nuclear@0 33
nuclear@0 34 char sbuffer[256];
nuclear@0 35 unsigned char fonts[59*64];
nuclear@0 36
nuclear@0 37 void InitFonts()
nuclear@0 38 {
nuclear@0 39 int i = 0;
nuclear@0 40 for (int n=0; n<59; n++)
nuclear@0 41 {
nuclear@0 42 for (int y=0; y<8; y++)
nuclear@0 43 {
nuclear@0 44 int c = bitfonts[i++];
nuclear@0 45 for (int x=0; x<8; x++)
nuclear@0 46 {
nuclear@0 47 fonts[(n << 6) + x + (y<<3)] = ((c >> (7 - x)) & 1) * 255;
nuclear@0 48 }
nuclear@0 49 }
nuclear@0 50 }
nuclear@0 51 }
nuclear@0 52
nuclear@0 53 void DrawFontX2(int xp, int yp, int ch, unsigned short *vram)
nuclear@0 54 {
nuclear@0 55 if (xp <0 || xp > 312) return;
nuclear@0 56 vram += xp + yp * ScreenWidth;
nuclear@0 57 for (int y=0; y<8; y++)
nuclear@0 58 {
nuclear@0 59 int yc = yp + y;
nuclear@0 60 if ((yc>=1) && (yc<ScreenHeight - 1))
nuclear@0 61 {
nuclear@0 62 int yi = y << 3;
nuclear@0 63 for (int x=0; x<8; x++)
nuclear@0 64 {
nuclear@0 65 unsigned char c = fonts[(ch << 6) + yi + x] * 0x01010101;
nuclear@0 66 *vram |= c;
nuclear@0 67 *(vram+1) |= c;
nuclear@0 68 *(vram+ScreenWidth) |= c;
nuclear@0 69 *(vram+ScreenWidth+1) |= c;
nuclear@0 70 vram+=2;
nuclear@0 71 }
nuclear@0 72 vram-=16;
nuclear@0 73 }
nuclear@0 74 vram+=2*ScreenWidth;
nuclear@0 75 }
nuclear@0 76 }
nuclear@0 77
nuclear@0 78 void DrawFont(int xp, int yp, int ch, unsigned short *vram)
nuclear@0 79 {
nuclear@0 80 if (xp <0 || xp > 312) return;
nuclear@0 81 vram += xp + yp * ScreenWidth;
nuclear@0 82 for (int y=0; y<8; y++)
nuclear@0 83 {
nuclear@0 84 int yc = yp + y;
nuclear@0 85 if ((yc>=1) && (yc<ScreenHeight - 1))
nuclear@0 86 {
nuclear@0 87 int yi = y << 3;
nuclear@0 88 for (int x=0; x<8; x++)
nuclear@0 89 {
nuclear@0 90 *vram++ |= (fonts[(ch << 6) + yi + x] * 0x01010101);
nuclear@0 91 }
nuclear@0 92 vram-=8;
nuclear@0 93 }
nuclear@0 94 vram+=ScreenWidth;
nuclear@0 95 }
nuclear@0 96 }
nuclear@0 97
nuclear@0 98 void DrawText(int xtp, int ytp, int cn, bool zoom, char *text, unsigned short *vram)
nuclear@0 99 {
nuclear@0 100 for (int n = 0; n<cn; n++)
nuclear@0 101 {
nuclear@0 102 char c = *text++;
nuclear@0 103 if (c>96 && c<123) c-=32;
nuclear@0 104
nuclear@0 105 if (!zoom)
nuclear@0 106 {
nuclear@0 107 if (c>31 && c<92) DrawFont(xtp, ytp, c - 32, vram);
nuclear@0 108 else if (c==0) n = cn;
nuclear@0 109 xtp+=8; if (xtp>ScreenWidth -8 -1) n = cn;
nuclear@0 110 }
nuclear@0 111 else
nuclear@0 112 {
nuclear@0 113 if (c>31 && c<92) DrawFontX2(xtp, ytp, c - 32, vram);
nuclear@0 114 else if (c==0) n = cn;
nuclear@0 115 xtp+=16; if (xtp>ScreenWidth -16 -1) n = cn;
nuclear@0 116 }
nuclear@0 117 }
nuclear@0 118 }
nuclear@0 119
nuclear@0 120 void ShowFPS(unsigned short *vram)
nuclear@0 121 {
nuclear@0 122 if (SDL_GetTicks() - atime >= 1000)
nuclear@0 123 {
nuclear@0 124 atime = SDL_GetTicks();
nuclear@0 125 fps = nframe - pframe;
nuclear@0 126 pframe = nframe;
nuclear@0 127 }
nuclear@0 128 sprintf(sbuffer, "FPS = %d", fps);
nuclear@0 129 DrawText(8, 8, 16, false, sbuffer, vram);
nuclear@0 130 }
nuclear@0 131
nuclear@0 132 void ClearScreen(unsigned short *vram)
nuclear@0 133 {
nuclear@0 134 memset(vram, 0, 2*ScreenSize);
nuclear@0 135 }
nuclear@0 136
nuclear@0 137 void speeddown(int ticks)
nuclear@0 138 {
nuclear@0 139 do{}while(SDL_GetTicks() - frametime < ticks);
nuclear@0 140 frametime = SDL_GetTicks();
nuclear@0 141 }
nuclear@0 142
nuclear@0 143 // -------------------------------------
nuclear@0 144
nuclear@0 145 void InitEffects()
nuclear@0 146 {
nuclear@0 147 InitBlitting();
nuclear@0 148 InitPlasma();
nuclear@0 149 InitRotozoomer();
nuclear@0 150 InitRadialblur();
nuclear@0 151
nuclear@0 152 initRender3D();
nuclear@0 153 InitBunny3D();
nuclear@0 154 }
nuclear@0 155
nuclear@0 156 void Init()
nuclear@0 157 {
nuclear@0 158 SDL_Init (SDL_INIT_VIDEO | SDL_INIT_JOYSTICK);
nuclear@0 159 SDL_ShowCursor(SDL_DISABLE);
nuclear@0 160 screen = SDL_SetVideoMode (ScreenWidth, ScreenHeight, 16, SDL_SWSURFACE);
nuclear@0 161
nuclear@0 162 if (SDL_NumJoysticks() > 0)
nuclear@0 163 joy = SDL_JoystickOpen(0);
nuclear@0 164
nuclear@0 165 InitFonts();
nuclear@0 166 InitEffects();
nuclear@0 167 }
nuclear@0 168
nuclear@0 169 void KeyCommands()
nuclear@0 170 {
nuclear@0 171 SDL_Event event;
nuclear@0 172
nuclear@0 173 #ifdef ProjectWin
nuclear@0 174 while (SDL_PollEvent (&event))
nuclear@0 175 {
nuclear@0 176 switch (event.type)
nuclear@0 177 {
nuclear@0 178 case SDL_KEYDOWN:
nuclear@0 179 if (event.key.keysym.sym==SDLK_ESCAPE)
nuclear@0 180 {
nuclear@0 181 if (where_is==RES)
nuclear@0 182 quit = 1;
nuclear@0 183 else if (where_is==BENCH)
nuclear@0 184 where_is = RES;
nuclear@0 185 }
nuclear@0 186 if (event.key.keysym.sym==SDLK_SPACE)
nuclear@0 187 if (where_is==DESC)
nuclear@0 188 desc_next = 1;
nuclear@0 189 break;
nuclear@0 190
nuclear@0 191 case SDL_QUIT:
nuclear@0 192 quit = 1;
nuclear@0 193 break;
nuclear@0 194
nuclear@0 195 default:
nuclear@0 196 break;
nuclear@0 197 }
nuclear@0 198 }
nuclear@0 199 #else
nuclear@0 200 while (SDL_PollEvent (&event))
nuclear@0 201 {
nuclear@0 202 switch (event.type)
nuclear@0 203 {
nuclear@0 204 case SDL_JOYBUTTONDOWN:
nuclear@0 205 if ( event.jbutton.button == BUTTON_HOME )
nuclear@0 206 {
nuclear@0 207 if (where_is==RES)
nuclear@0 208 quit = 1;
nuclear@0 209 else if (where_is==BENCH)
nuclear@0 210 where_is = RES;
nuclear@0 211 }
nuclear@0 212
nuclear@0 213 if (event.jbutton.button==BUTTON_A)
nuclear@0 214 if (where_is==DESC)
nuclear@0 215 desc_next = 1;
nuclear@0 216 break;
nuclear@0 217 }
nuclear@0 218 }
nuclear@0 219 #endif
nuclear@0 220 }
nuclear@0 221
nuclear@0 222 // -------------------------------------
nuclear@0 223
nuclear@0 224 char* test_name[NUM_TESTS];
nuclear@0 225 char* test_description[NUM_TESTS];
nuclear@0 226 int total_frames[NUM_TESTS];
nuclear@0 227 int start_frames[NUM_TESTS+1];
nuclear@0 228 float test_fps[NUM_TESTS];
nuclear@0 229
nuclear@0 230 int test_time_start;
nuclear@0 231
nuclear@0 232 void InitBench()
nuclear@0 233 {
nuclear@0 234 nframe = 0;
nuclear@0 235
nuclear@0 236 test_name[TEST_BLITTING] = "Blitting Test";
nuclear@0 237 test_description[TEST_BLITTING] = "A simple memset blitting test. Tests how fast it is to write stuff to the video ram.";
nuclear@0 238 total_frames[TEST_BLITTING] = 3000;
nuclear@0 239
nuclear@0 240 test_name[TEST_PLASMA] = "Plasma";
nuclear@0 241 test_description[TEST_PLASMA] = "A lightweight demo effect. Addition of integer sine values read from small LUTs.";
nuclear@0 242 total_frames[TEST_PLASMA] = 3000;
nuclear@0 243
nuclear@0 244 test_name[TEST_ROTOZOOMER] = "Rotozoomer";
nuclear@0 245 test_description[TEST_ROTOZOOMER] = "Rotozoomer test 1. Zooming in and out.";
nuclear@0 246 total_frames[TEST_ROTOZOOMER] = 2000;
nuclear@0 247
nuclear@0 248 test_name[TEST_ROTOZOOMER_NEAR] = "Rotozoomer Near";
nuclear@0 249 test_description[TEST_ROTOZOOMER_NEAR] = "Rotozoomer test 2. Close up, optimum speed, cache does not affect.";
nuclear@0 250 total_frames[TEST_ROTOZOOMER_NEAR] = 2500;
nuclear@0 251
nuclear@0 252 test_name[TEST_ROTOZOOMER_FAR] = "Rotozoomer Far";
nuclear@0 253 test_description[TEST_ROTOZOOMER_FAR] = "Rotozoomer test 3. Far in the distance. Slowest version because of cache misses. Good tests for cache performance.";
nuclear@0 254 total_frames[TEST_ROTOZOOMER_FAR] = 1500;
nuclear@0 255
nuclear@0 256 test_name[TEST_RADIALBLUR] = "Radial Blur";
nuclear@0 257 test_description[TEST_RADIALBLUR] = "A true RGB effect with lot's of reads and huge arrays. The way this effect was written is not cache friendly and that could be also a good test for cache or memory read performance.";
nuclear@0 258 total_frames[TEST_RADIALBLUR] = 500;
nuclear@0 259
nuclear@0 260 test_name[TEST_BUNNY3D] = "3D Bunny";
nuclear@0 261 test_description[TEST_BUNNY3D] = "This is a massive model (69451 polygons) and a total overkill for most handhelds. Also, this is software rendering.";
nuclear@0 262 total_frames[TEST_BUNNY3D] = 80;
nuclear@0 263
nuclear@0 264 int sum_frames = 0;
nuclear@0 265 int i = 0;
nuclear@0 266 for (i=0; i<NUM_TESTS; i++)
nuclear@0 267 {
nuclear@0 268 test_fps[i] = 0;
nuclear@0 269 start_frames[i] = sum_frames;
nuclear@0 270 sum_frames += total_frames[i];
nuclear@0 271 }
nuclear@0 272 start_frames[i] = sum_frames;
nuclear@0 273 }
nuclear@0 274
nuclear@0 275 void RasterScreen(int ntime, int sr, int sg, int sb, unsigned short *vram)
nuclear@0 276 {
nuclear@0 277 float t = (float)ntime / 4.0f;
nuclear@0 278
nuclear@0 279 for (int y=0; y<ScreenHeight; y++)
nuclear@0 280 {
nuclear@0 281 int yp = (int)(sin((y+4*t)/15.0f)*cos((y-3*t)/63.0f)*15 + 16);
nuclear@0 282 for (int x=0; x<ScreenWidth; x++)
nuclear@0 283 {
nuclear@0 284 *vram++ = ((yp>>sr)<<11) | (((yp << 1)>>sg) << 5) | (yp>>sb);
nuclear@0 285 }
nuclear@0 286 }
nuclear@0 287 }
nuclear@0 288
nuclear@0 289 void SquaresScreen(int ntime, unsigned short *vram)
nuclear@0 290 {
nuclear@0 291 int t = ntime >> 1;
nuclear@0 292
nuclear@0 293 for (int y=0; y<ScreenHeight; y++)
nuclear@0 294 {
nuclear@0 295 for (int x=0; x<ScreenWidth; x++)
nuclear@0 296 {
nuclear@0 297 int c = (((x - t) & 15)==0 || ((y - t) & 15)==0) * 15;
nuclear@0 298 *vram++ = ((c>>3)<<11) | (((c << 1)>>2) << 5) | (c>>1);
nuclear@0 299 }
nuclear@0 300 }
nuclear@0 301 }
nuclear@0 302
nuclear@0 303 void RenderTestDescription(int test_num, int ntime, unsigned short *vram)
nuclear@0 304 {
nuclear@0 305 sprintf(sbuffer, test_name[test_num]);
nuclear@0 306 DrawText(8, 8, 16, true, sbuffer, vram);
nuclear@0 307
nuclear@0 308 sprintf(sbuffer, test_description[test_num]);
nuclear@0 309 DrawText(384 - 4 * ntime, 160, 256, false, sbuffer, vram);
nuclear@0 310 }
nuclear@0 311
nuclear@0 312 void DrawBar(int char_y, float percentage, unsigned short *vram)
nuclear@0 313 {
nuclear@0 314 int xp = (int)((ScreenWidth - 4) * percentage);
nuclear@0 315
nuclear@0 316 unsigned short cbar = (7 << 11) | (31 << 5) | 15;
nuclear@0 317
nuclear@0 318 for (int y=0; y<9; y++)
nuclear@0 319 {
nuclear@0 320 int yi = char_y * 11 + y + 2;
nuclear@0 321 for (int x=0; x<=xp; x++)
nuclear@0 322 {
nuclear@0 323 int xi = 2 + x;
nuclear@0 324 int i = yi * ScreenWidth + xi;
nuclear@0 325 *(vram + i) |= cbar;
nuclear@0 326 }
nuclear@0 327 }
nuclear@0 328 }
nuclear@0 329
nuclear@0 330 void RenderTestResults(int ntime, float res_max, unsigned short *vram)
nuclear@0 331 {
nuclear@0 332 int tmaxframe = 64;
nuclear@0 333 float tscale = (float)ntime / float(tmaxframe);
nuclear@0 334 if (tscale > 1.0f) tscale = 1.0f;
nuclear@0 335
nuclear@0 336 for (int i=0; i<NUM_TESTS; i++)
nuclear@0 337 {
nuclear@0 338 sprintf(sbuffer, "%s", test_name[i]);
nuclear@0 339 DrawText(8, i * 11 + 3, 32, false, sbuffer, vram);
nuclear@0 340
nuclear@0 341 sprintf(sbuffer, "%.1f", test_fps[i]);
nuclear@0 342 DrawText(256, i * 11 + 3, 32, false, sbuffer, vram);
nuclear@0 343
nuclear@0 344 DrawBar(i, (test_fps[i] / res_max) * tscale, vram);
nuclear@0 345 }
nuclear@0 346 }
nuclear@0 347
nuclear@0 348 void show_test_description(int test_num, unsigned short *vram)
nuclear@0 349 {
nuclear@0 350 where_is = DESC;
nuclear@0 351
nuclear@0 352 int tframe = 0;
nuclear@0 353 desc_next = 0;
nuclear@0 354
nuclear@0 355 srand(SDL_GetTicks());
nuclear@0 356
nuclear@0 357 int sr = (rand() % 2) + 1;
nuclear@0 358 int sg = (rand() % 2) + 1;
nuclear@0 359 int sb = (rand() % 2) + 1;
nuclear@0 360
nuclear@0 361 int l = 2 * strlen(test_description[test_num]) + 2 * 56;
nuclear@0 362
nuclear@0 363 while (!desc_next && tframe < l)
nuclear@0 364 {
nuclear@0 365 RasterScreen(tframe, sr, sg, sb, vram);
nuclear@0 366 RenderTestDescription(test_num, tframe, vram);
nuclear@0 367 SDL_Flip(screen);
nuclear@0 368 speeddown(20);
nuclear@0 369 KeyCommands();
nuclear@0 370 tframe++;
nuclear@0 371 }
nuclear@0 372 }
nuclear@0 373
nuclear@0 374 float find_max_result()
nuclear@0 375 {
nuclear@0 376 float max = 0.0f;
nuclear@0 377 for (int i=0; i<NUM_TESTS; i++)
nuclear@0 378 {
nuclear@0 379 if (test_fps[i] > max) max = test_fps[i];
nuclear@0 380 }
nuclear@0 381
nuclear@0 382 return max;
nuclear@0 383 }
nuclear@0 384
nuclear@0 385 void show_test_results(unsigned short *vram)
nuclear@0 386 {
nuclear@0 387 where_is = RES;
nuclear@0 388
nuclear@0 389 int tframe = 0;
nuclear@0 390
nuclear@0 391 float fmax = find_max_result();
nuclear@0 392
nuclear@0 393 while (!quit)
nuclear@0 394 {
nuclear@0 395 SquaresScreen(tframe, vram);
nuclear@0 396 RenderTestResults(tframe, fmax, vram);
nuclear@0 397 SDL_Flip(screen);
nuclear@0 398 speeddown(20);
nuclear@0 399 KeyCommands();
nuclear@0 400 tframe++;
nuclear@0 401 }
nuclear@0 402 }
nuclear@0 403
nuclear@0 404
nuclear@0 405 void RunBenchScript(int ntime, unsigned short *vram)
nuclear@0 406 {
nuclear@0 407 for (int i=0; i<=NUM_TESTS; i++)
nuclear@0 408 {
nuclear@0 409 if (nframe == start_frames[i])
nuclear@0 410 {
nuclear@0 411 if (i<NUM_TESTS)
nuclear@0 412 show_test_description(i, vram);
nuclear@0 413
nuclear@0 414 test_time_start = SDL_GetTicks();
nuclear@0 415 }
nuclear@0 416
nuclear@0 417 if (nframe == start_frames[i]-1)
nuclear@0 418 test_fps[i-1] = (float)total_frames[i-1] / ((float)(SDL_GetTicks() - test_time_start) / 1000.0f);
nuclear@0 419 }
nuclear@0 420
nuclear@0 421 if (where_is==RES)
nuclear@0 422 show_test_results(vram);
nuclear@0 423
nuclear@0 424 if (nframe >= start_frames[TEST_BLITTING] && nframe < start_frames[TEST_PLASMA])
nuclear@0 425 {
nuclear@0 426 RunBlitting(ntime, vram);
nuclear@0 427 }
nuclear@0 428 else if (nframe >= start_frames[TEST_PLASMA] && nframe < start_frames[TEST_ROTOZOOMER])
nuclear@0 429 {
nuclear@0 430 RunPlasma(ntime, vram);
nuclear@0 431 }
nuclear@0 432 else if (nframe >= start_frames[TEST_ROTOZOOMER] && nframe < start_frames[TEST_ROTOZOOMER_NEAR])
nuclear@0 433 {
nuclear@0 434 RunRotozoomerNormal(ntime, vram);
nuclear@0 435 }
nuclear@0 436 else if (nframe >= start_frames[TEST_ROTOZOOMER_NEAR] && nframe < start_frames[TEST_ROTOZOOMER_FAR])
nuclear@0 437 {
nuclear@0 438 RunRotozoomerNear(ntime, vram);
nuclear@0 439 }
nuclear@0 440 else if (nframe >= start_frames[TEST_ROTOZOOMER_FAR] && nframe < start_frames[TEST_RADIALBLUR])
nuclear@0 441 {
nuclear@0 442 RunRotozoomerFar(ntime, vram);
nuclear@0 443 }
nuclear@0 444 else if (nframe >= start_frames[TEST_RADIALBLUR] && nframe < start_frames[TEST_BUNNY3D])
nuclear@0 445 {
nuclear@0 446 RunRadialblur(ntime, vram);
nuclear@0 447 }
nuclear@0 448 else if (nframe >= start_frames[TEST_BUNNY3D] && nframe < start_frames[NUM_TESTS])
nuclear@0 449 {
nuclear@0 450 RunBunny3D(ntime, vram);
nuclear@0 451 }
nuclear@0 452 else
nuclear@0 453 {
nuclear@0 454 show_test_results(vram);
nuclear@0 455 }
nuclear@0 456 }
nuclear@0 457
nuclear@0 458 void RunBench()
nuclear@0 459 {
nuclear@0 460 while (!quit)
nuclear@0 461 {
nuclear@0 462 where_is = BENCH;
nuclear@0 463 KeyCommands();
nuclear@0 464
nuclear@0 465 unsigned short *vram = (unsigned short*)screen->pixels;
nuclear@0 466 RunBenchScript(nframe, vram);
nuclear@0 467
nuclear@0 468 ShowFPS(vram);
nuclear@0 469
nuclear@0 470 SDL_Flip(screen);
nuclear@0 471 nframe++;
nuclear@0 472 }
nuclear@0 473 }
nuclear@0 474
nuclear@0 475 void BackToSystem()
nuclear@0 476 {
nuclear@0 477 #if defined ProjectCaanoo || defined ProjectWiz
nuclear@0 478 SDL_Quit();
nuclear@0 479 chdir("/usr/gp2x");
nuclear@0 480 execl("/usr/gp2x/gp2xmenu", "/usr/gp2x/gp2xmenu", NULL);
nuclear@0 481 #endif
nuclear@0 482 }
nuclear@0 483
nuclear@0 484 int main (int argc, char *argv[])
nuclear@0 485 {
nuclear@0 486 Init();
nuclear@0 487
nuclear@0 488 InitBench();
nuclear@0 489 RunBench();
nuclear@0 490
nuclear@0 491 BackToSystem();
nuclear@0 492 }