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comparison glxdragon.cpp @ 10:c6c419861101

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Use SDL_GetTicks() instead of std::clock().
author Matti Hamalainen <ccr@tnsp.org>
date Mon, 28 Oct 2019 12:59:18 +0200
parents 628c42e94149
children 89dc8caeff41
comparison
equal deleted inserted replaced
9:87cb16492d91 10:c6c419861101
36 #include <iostream> 36 #include <iostream>
37 #include <fstream> 37 #include <fstream>
38 #include <string> 38 #include <string>
39 #include <vector> 39 #include <vector>
40 #include <cstdio> 40 #include <cstdio>
41 #include <ctime>
42 41
43 42
44 #define SET_FRAMES (180 * 2) 43 #define SET_FRAMES (180 * 2)
45 44
46 45
291 290
292 int main(int argc, char *argv[]) 291 int main(int argc, char *argv[])
293 { 292 {
294 struct Mesh dragonMesh; 293 struct Mesh dragonMesh;
295 std::string dragonVS, dragonFS; 294 std::string dragonVS, dragonFS;
296 std::clock_t startTime;
297 bool exitFlag = false, optShowHelp = false; 295 bool exitFlag = false, optShowHelp = false;
298 int nframes = 0; 296 int startTime, nframes = 0;
299 297
300 // Check commandline argument for enabling shaders 298 // Check commandline argument for enabling shaders
301 299
302 for (int narg = 1; narg < argc; narg++) 300 for (int narg = 1; narg < argc; narg++)
303 { 301 {
371 // Define the camera 369 // Define the camera
372 gluLookAt(0, 0.12, 0.24, 0, 0.12, 0, 0, 1, 0); 370 gluLookAt(0, 0.12, 0.24, 0, 0.12, 0, 0, 1, 0);
373 371
374 372
375 // Main loop starts 373 // Main loop starts
376 startTime = std::clock(); 374 startTime = SDL_GetTicks();
377 375
378 while (!exitFlag) 376 while (!exitFlag)
379 { 377 {
380 SDL_Event event; 378 SDL_Event event;
381 379
411 { 409 {
412 // Reset nframes 410 // Reset nframes
413 nframes = 0; 411 nframes = 0;
414 412
415 // Get the time it took to render a full turn 413 // Get the time it took to render a full turn
416 double time = (double(std::clock() - startTime) * 1000.0f) / CLOCKS_PER_SEC; 414 double time = SDL_GetTicks() - startTime;
415
416 // Restart the timer
417 startTime = SDL_GetTicks();
417 418
418 // Print the current frames per second 419 // Print the current frames per second
419 printf("%.1lf ms for %d frames = %.1lf FPS\n", 420 printf("%.1lf ms for %d frames = %.1lf FPS\n",
420 time, SET_FRAMES, (SET_FRAMES * 1000.0f) / time); 421 time, SET_FRAMES, (SET_FRAMES * 1000.0f) / time);
421 422
422 // Restart the timer
423 startTime = std::clock();
424 } 423 }
425 } 424 }
426 425
427 exit: 426 exit:
428 if (dmGLContext != NULL) 427 if (dmGLContext != NULL)