progs/demos/gltestperf.c

   1 /*
   2  * This program is under the GNU GPL.
   3  * Use at your own risk.
   4  *
   5  * written by David Bucciarelli (tech.hmw@plus.it)
   6  *            Humanware s.r.l.
   7  */
   8
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <math.h>
  13 #include <GL/glut.h>
  14
  15 typedef struct
  16 {
  17    char *name;
  18    char *unit;
  19    void (*init) (void);
  20    int (*run) (int, int);
  21    int type;
  22    int numsize;
  23    int size[10];
  24 }
  25 benchmark;
  26
  27 static int frontbuffer = 1;
  28
  29 /***************************************************************************/
  30
  31 static void
  32 init_test01(void)
  33 {
  34    glMatrixMode(GL_PROJECTION);
  35    glLoadIdentity();
  36    gluOrtho2D(-0.5, 639.5, -0.5, 479.5);
  37    glMatrixMode(GL_MODELVIEW);
  38
  39    glShadeModel(GL_FLAT);
  40    glDisable(GL_DEPTH_TEST);
  41
  42    glClearColor(0.0, 0.1, 1.0, 0.0);
  43    glClear(GL_COLOR_BUFFER_BIT);
  44    glColor3f(1.0, 0.0, 0.0);
  45 }
  46
  47 static int
  48 test01(int size, int num)
  49 {
  50    int x, y;
  51
  52    glBegin(GL_POINTS);
  53    for (y = 0; y < num; y++)
  54       for (x = 0; x < 480; x++)
  55          glVertex2i(x, x);
  56    glEnd();
  57
  58    return 480 * num;
  59 }
  60
  61 /***************************************************************************/
  62
  63 static void
  64 init_test02(void)
  65 {
  66    glMatrixMode(GL_PROJECTION);
  67    glLoadIdentity();
  68    gluOrtho2D(-0.5, 639.5, -0.5, 479.5);
  69    glMatrixMode(GL_MODELVIEW);
  70
  71    glShadeModel(GL_SMOOTH);
  72    glDisable(GL_DEPTH_TEST);
  73
  74    glClearColor(0.0, 0.1, 1.0, 0.0);
  75    glClear(GL_COLOR_BUFFER_BIT);
  76 }
  77
  78 static int
  79 test02(int size, int num)
  80 {
  81    int x, y;
  82
  83    glBegin(GL_LINES);
  84    for (y = 0; y < num; y++)
  85       for (x = 0; x < size; x++) {
  86          glColor3f(0.0, 1.0, y / (float) num);
  87          glVertex2i(0, size - 1);
  88          glColor3f(1.0, 0.0, x / (float) size);
  89          glVertex2i(x, x);
  90       }
  91    glEnd();
  92
  93    return num * size;
  94 }
  95
  96 /***************************************************************************/
  97
  98 static void
  99 init_test03(void)
 100 {
 101    glMatrixMode(GL_PROJECTION);
 102    glLoadIdentity();
 103    glOrtho(-0.5, 639.5, -0.5, 479.5, 1.0, -1000.0 * 480.0);
 104    glMatrixMode(GL_MODELVIEW);
 105
 106    glShadeModel(GL_SMOOTH);
 107    glEnable(GL_DEPTH_TEST);
 108
 109    glClearColor(0.0, 0.1, 1.0, 0.0);
 110    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 111 }
 112
 113 static int
 114 test03(int size, int num)
 115 {
 116    int x, y, z;
 117
 118    glBegin(GL_TRIANGLES);
 119    for (y = 0; y < num; y++)
 120       for (x = 0; x < size; x += 5) {
 121          z = num * size - (y * size + x);
 122          glColor3f(0.0, 1.0, 0.0);
 123          glVertex3i(0, x, z);
 124
 125          glColor3f(1.0, 0.0, x / (float) size);
 126          glVertex3i(size - 1 - x, 0, z);
 127
 128          glColor3f(1.0, x / (float) size, 0.0);
 129          glVertex3i(x, size - 1 - x, z);
 130       }
 131    glEnd();
 132
 133    return size * num / 5;
 134 }
 135
 136 /***************************************************************************/
 137
 138 static void
 139 init_test04(void)
 140 {
 141    int x, y;
 142    GLubyte tex[128 * 128 * 3];
 143    GLenum gluerr;
 144
 145    glMatrixMode(GL_PROJECTION);
 146    glLoadIdentity();
 147    glOrtho(-0.5, 639.5, -0.5, 479.5, 1.0, -1000.0 * 480.0);
 148
 149    glMatrixMode(GL_MODELVIEW);
 150
 151    glShadeModel(GL_SMOOTH);
 152    glEnable(GL_DEPTH_TEST);
 153
 154    glEnable(GL_BLEND);
 155    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 156
 157    for (y = 0; y < 128; y++)
 158       for (x = 0; x < 128; x++) {
 159          tex[(x + y * 128) * 3 + 0] = ((x % (128 / 4)) < (128 / 8)) ? 255 : 0;
 160          tex[(x + y * 128) * 3 + 1] = ((y % (128 / 4)) < (128 / 8)) ? 255 : 0;
 161          tex[(x + y * 128) * 3 + 2] = x;
 162       }
 163
 164    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 165    if ((gluerr = gluBuild2DMipmaps(GL_TEXTURE_2D, 3, 128, 128, GL_RGB,
 166                                    GL_UNSIGNED_BYTE, (GLvoid *) (&tex[0])))) {
 167       fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
 168       exit(-1);
 169    }
 170
 171    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
 172    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 173
 174    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
 175                    GL_LINEAR_MIPMAP_NEAREST);
 176    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 177
 178    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 179    glEnable(GL_TEXTURE_2D);
 180
 181    glClearColor(0.0, 0.1, 1.0, 0.0);
 182    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 183 }
 184
 185 static int
 186 test04(int size, int num)
 187 {
 188    int x, y, z;
 189
 190    glBegin(GL_TRIANGLES);
 191    for (y = 0; y < num; y++)
 192       for (x = 0; x < size; x += 5) {
 193          z = num * size - (y * size + x);
 194          glTexCoord2f(1.0, 1.0);
 195          glColor3f(1.0, 0.0, 0.0);
 196          glVertex3i(0, x, z);
 197
 198          glTexCoord2f(0.0, 1.0);
 199          glColor3f(0.0, 1.0, 0.0);
 200          glVertex3i(size - 1 - x, 0, z);
 201
 202          glTexCoord2f(1.0, 0.0);
 203          glColor3f(0.0, 0.0, 1.0);
 204          glVertex3i(x, size - 1 - x, z);
 205       }
 206    glEnd();
 207
 208    return num * size / 5;
 209 }
 210
 211 /***************************************************************************/
 212
 213 static void
 214 init_test05(void)
 215 {
 216    int x, y;
 217    GLubyte tex[128 * 128 * 3];
 218    GLenum gluerr;
 219
 220    glMatrixMode(GL_PROJECTION);
 221    glLoadIdentity();
 222    glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
 223
 224    glMatrixMode(GL_MODELVIEW);
 225
 226    glShadeModel(GL_SMOOTH);
 227    glEnable(GL_DEPTH_TEST);
 228
 229    glEnable(GL_BLEND);
 230    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 231
 232    for (y = 0; y < 128; y++)
 233       for (x = 0; x < 128; x++) {
 234          tex[(x + y * 128) * 3 + 0] = ((x % (128 / 4)) < (128 / 8)) ? 255 : 0;
 235          tex[(x + y * 128) * 3 + 1] = ((y % (128 / 4)) < (128 / 8)) ? 255 : 0;
 236          tex[(x + y * 128) * 3 + 2] = x;
 237       }
 238
 239    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 240    if ((gluerr = gluBuild2DMipmaps(GL_TEXTURE_2D, 3, 128, 128, GL_RGB,
 241                                    GL_UNSIGNED_BYTE, (GLvoid *) (&tex[0])))) {
 242       fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
 243       exit(-1);
 244    }
 245
 246    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
 247    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 248
 249    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
 250                    GL_LINEAR_MIPMAP_NEAREST);
 251    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 252
 253    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 254    glEnable(GL_TEXTURE_2D);
 255
 256    glDepthFunc(GL_ALWAYS);
 257
 258    glClearColor(0.0, 0.1, 1.0, 0.0);
 259    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 260 }
 261
 262 static int
 263 test05(int size, int num)
 264 {
 265    int y;
 266    float v0[3], v1[3], v2[3], v3[3];
 267    float cv0[3], cv1[3], cv2[3], cv3[3];
 268    float tv0[3], tv1[3], tv2[3], tv3[3];
 269
 270    v0[0] = 320 - size / 2;
 271    v0[1] = 240 - size / 2;
 272    v0[2] = 0.0;
 273    v1[0] = 320 + size / 2;
 274    v1[1] = 240 - size / 2;
 275    v1[2] = 0.0;
 276    v2[0] = 320 - size / 2;
 277    v2[1] = 240 + size / 2;
 278    v2[2] = 0.0;
 279    v3[0] = 320 + size / 2;
 280    v3[1] = 240 + size / 2;
 281    v3[2] = 0.0;
 282    cv0[0] = 1.0;
 283    cv0[1] = 0.0;
 284    cv0[2] = 0.0;
 285    cv1[0] = 1.0;
 286    cv1[1] = 1.0;
 287    cv1[2] = 0.0;
 288    cv2[0] = 1.0;
 289    cv2[1] = 0.0;
 290    cv2[2] = 1.0;
 291    cv3[0] = 1.0;
 292    cv3[1] = 1.0;
 293    cv3[2] = 1.0;
 294    tv0[0] = 0.0;
 295    tv0[1] = 0.0;
 296    tv0[2] = 0.0;
 297    tv1[0] = 1.0;
 298    tv1[1] = 0.0;
 299    tv1[2] = 0.0;
 300    tv2[0] = 0.0;
 301    tv2[1] = 1.0;
 302    tv2[2] = 0.0;
 303    tv3[0] = 1.0;
 304    tv3[1] = 1.0;
 305    tv3[2] = 0.0;
 306
 307    glBegin(GL_TRIANGLE_STRIP);
 308    for (y = 0; y < num; y++) {
 309       glColor3fv(cv0);
 310       glTexCoord2fv(tv0);
 311       glVertex3fv(v0);
 312
 313       glColor3fv(cv1);
 314       glTexCoord2fv(tv1);
 315       glVertex3fv(v1);
 316
 317       glColor3fv(cv2);
 318       glTexCoord2fv(tv2);
 319       glVertex3fv(v2);
 320
 321       glColor3fv(cv3);
 322       glTexCoord2fv(tv3);
 323       glVertex3fv(v3);
 324    }
 325    glEnd();
 326
 327    return 4 * num - 2;
 328 }
 329
 330 /***************************************************************************/
 331
 332 static void
 333 init_test06(void)
 334 {
 335    glMatrixMode(GL_PROJECTION);
 336    glLoadIdentity();
 337    gluOrtho2D(-0.5, 639.5, -0.5, 479.5);
 338    glMatrixMode(GL_MODELVIEW);
 339
 340    glShadeModel(GL_SMOOTH);
 341    glEnable(GL_DEPTH_TEST);
 342
 343    glClearColor(0.0, 0.1, 1.0, 0.0);
 344    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 345 }
 346
 347 static int
 348 test06(int size, int num)
 349 {
 350    int y;
 351
 352    for (y = 0; y < num; y++) {
 353       glClearColor(y / (float) num, 0.1, 1.0, 0.0);
 354       glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 355    }
 356
 357    return num;
 358 }
 359
 360 /***************************************************************************/
 361
 362 #define BMARKS_TIME 5.0
 363
 364 #define NUM_BMARKS 6
 365
 366 /* 554 ~= sqrt(640*480) */
 367
 368 static benchmark bmarks[NUM_BMARKS] = {
 369    {"Simple Points", "Pnts", init_test01, test01, 0, 0,
 370     {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
 371    {"Smooth Lines", "Lins", init_test02, test02, 1, 5,
 372     {480, 250, 100, 50, 25, 0, 0, 0, 0, 0}},
 373    {"ZSmooth Triangles", "Tris", init_test03, test03, 1, 5,
 374     {480, 250, 100, 50, 25, 0, 0, 0, 0, 0}},
 375    {"ZSmooth Tex Blend Triangles", "Tris", init_test04, test04, 1, 5,
 376     {480, 250, 100, 50, 25, 0, 0, 0, 0, 0}},
 377    {"ZSmooth Tex Blend TMesh Triangles", "Tris", init_test05, test05, 2, 8,
 378     {400, 250, 100, 50, 25, 10, 5, 2, 0, 0}},
 379    {"Color/Depth Buffer Clears", "Clrs", init_test06, test06, 3, 0,
 380     {554, 0, 0, 0, 0, 0, 0, 0, 0, 0}}
 381 };
 382
 383 /***************************************************************************/
 384
 385 static void
 386 dotest0param(benchmark * bmark)
 387 {
 388    float stime, etime, dtime, tottime, maxtime, mintime;
 389    int num, numelem, calibnum, j;
 390
 391    glPushAttrib(GL_ALL_ATTRIB_BITS);
 392    bmark->init();
 393
 394    stime = glutGet(GLUT_ELAPSED_TIME);
 395
 396    dtime = 0.0;
 397    calibnum = 0;
 398    while (dtime < 2.0) {
 399       bmark->run(0, 1);
 400       glFinish();
 401       etime = glutGet(GLUT_ELAPSED_TIME);
 402       dtime = (etime - stime) / 1000.0;
 403       calibnum++;
 404    }
 405    glPopAttrib();
 406
 407    fprintf(stderr, "Elapsed time for the calibration test (%d): %f\n",
 408            calibnum, dtime);
 409
 410    num = (int) ((BMARKS_TIME / dtime) * calibnum);
 411
 412    if (num < 1)
 413       num = 1;
 414
 415    fprintf(stderr, "Selected number of benchmark iterations: %d\n", num);
 416
 417    mintime = HUGE_VAL;
 418    maxtime = -HUGE_VAL;
 419
 420    for (tottime = 0.0, j = 0; j < 5; j++) {
 421       glPushAttrib(GL_ALL_ATTRIB_BITS);
 422       bmark->init();
 423
 424       stime = glutGet(GLUT_ELAPSED_TIME);
 425       numelem = bmark->run(0, num);
 426       glFinish();
 427       etime = glutGet(GLUT_ELAPSED_TIME);
 428
 429       glPopAttrib();
 430
 431       dtime = (etime - stime) / 1000.0;
 432       tottime += dtime;
 433
 434       fprintf(stderr, "Elapsed time for run %d: %f\n", j, dtime);
 435
 436       if (dtime < mintime)
 437          mintime = dtime;
 438       if (dtime > maxtime)
 439          maxtime = dtime;
 440    }
 441
 442    tottime -= mintime + maxtime;
 443
 444    fprintf(stdout, "%s\n%f %s/sec", bmark->name, numelem / (tottime / 3.0),
 445            bmark->unit);
 446
 447    if (bmark->type == 3)
 448       fprintf(stdout, ", MPixel Fill/sec: %f\n\n",
 449               (numelem * bmark->size[0] * (float) bmark->size[0]) /
 450               (1000000.0 * tottime / 3.0));
 451    else
 452       fprintf(stdout, "\n\n");
 453 }
 454
 455 /***************************************************************************/
 456
 457 static void
 458 dotest1param(benchmark * bmark)
 459 {
 460    float stime, etime, dtime, tottime, maxtime, mintime;
 461    int num, numelem, calibnum, j, k;
 462
 463    fprintf(stdout, "%s\n", bmark->name);
 464
 465    for (j = 0; j < bmark->numsize; j++) {
 466       fprintf(stderr, "Current size: %d\n", bmark->size[j]);
 467
 468       glPushAttrib(GL_ALL_ATTRIB_BITS);
 469       bmark->init();
 470
 471       stime = glutGet(GLUT_ELAPSED_TIME);
 472
 473       dtime = 0.0;
 474       calibnum = 0;
 475       while (dtime < 2.0) {
 476          bmark->run(bmark->size[j], 1);
 477          glFinish();
 478          etime = glutGet(GLUT_ELAPSED_TIME);
 479          dtime = (etime - stime) / 1000.0;
 480          calibnum++;
 481       }
 482       glPopAttrib();
 483
 484       fprintf(stderr, "Elapsed time for the calibration test (%d): %f\n",
 485               calibnum, dtime);
 486
 487       num = (int) ((BMARKS_TIME / dtime) * calibnum);
 488
 489       if (num < 1)
 490          num = 1;
 491
 492       fprintf(stderr, "Selected number of benchmark iterations: %d\n", num);
 493
 494       mintime = HUGE_VAL;
 495       maxtime = -HUGE_VAL;
 496
 497       for (numelem = 1, tottime = 0.0, k = 0; k < 5; k++) {
 498          glPushAttrib(GL_ALL_ATTRIB_BITS);
 499          bmark->init();
 500
 501          stime = glutGet(GLUT_ELAPSED_TIME);
 502          numelem = bmark->run(bmark->size[j], num);
 503          glFinish();
 504          etime = glutGet(GLUT_ELAPSED_TIME);
 505
 506          glPopAttrib();
 507
 508          dtime = (etime - stime) / 1000.0;
 509          tottime += dtime;
 510
 511          fprintf(stderr, "Elapsed time for run %d: %f\n", k, dtime);
 512
 513          if (dtime < mintime)
 514             mintime = dtime;
 515          if (dtime > maxtime)
 516             maxtime = dtime;
 517       }
 518
 519       tottime -= mintime + maxtime;
 520
 521       fprintf(stdout, "SIZE=%03d => %f %s/sec", bmark->size[j],
 522               numelem / (tottime / 3.0), bmark->unit);
 523       if (bmark->type == 2)
 524          fprintf(stdout, ", MPixel Fill/sec: %f\n",
 525                  (numelem * bmark->size[j] * bmark->size[j] / 2) /
 526                  (1000000.0 * tottime / 3.0));
 527       else
 528          fprintf(stdout, "\n");
 529    }
 530
 531    fprintf(stdout, "\n\n");
 532 }
 533
 534 /***************************************************************************/
 535
 536 static void
 537 display(void)
 538 {
 539    int i;
 540
 541    if (frontbuffer)
 542       glDrawBuffer(GL_FRONT);
 543    else
 544       glDrawBuffer(GL_BACK);
 545
 546    for (i = 0; i < NUM_BMARKS; i++) {
 547       fprintf(stderr, "Benchmark: %d\n", i);
 548
 549       switch (bmarks[i].type) {
 550       case 0:
 551       case 3:
 552          dotest0param(&bmarks[i]);
 553          break;
 554       case 1:
 555       case 2:
 556          dotest1param(&bmarks[i]);
 557          break;
 558       }
 559    }
 560
 561    exit(0);
 562 }
 563
 564 int
 565 main(int ac, char **av)
 566 {
 567    fprintf(stderr, "GLTest v1.0\nWritten by David Bucciarelli\n");
 568
 569    if (ac == 2)
 570       frontbuffer = 0;
 571
 572    glutInitWindowSize(640, 480);
 573    glutInit(&ac, av);
 574    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
 575    glutCreateWindow("OpenGL/Mesa Performances");
 576    glutDisplayFunc(display);
 577    glutMainLoop();
 578
 579    return 0;
 580 }