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Updated timer test and fixed performance counter on Mac OS X

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This commit is contained in:
Sam Lantinga
2013-06-23 22:19:38 -07:00
parent ff47b549bd
commit 924968d2d0
2 changed files with 20 additions and 20 deletions
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28
test/testtimer.c
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@@ -14,16 +14,6 @@
platform
*/
#if 1 /* FIXME: Rework this using the 2.0 API */
#include <stdio.h>
#include "SDL.h"
int main(int argc, char *argv[])
{
printf("FIXME\n");
return 0;
}
#else
#include <stdlib.h>
#include <stdio.h>
@@ -34,7 +24,7 @@ int main(int argc, char *argv[])
static int ticks = 0;
static Uint32 SDLCALL
ticktock(Uint32 interval)
ticktock(Uint32 interval, void *param)
{
++ticks;
return (interval);
@@ -52,6 +42,7 @@ main(int argc, char *argv[])
{
int i, desired;
SDL_TimerID t1, t2, t3;
Uint32 start32, now32;
Uint64 start, now;
if (SDL_Init(SDL_INIT_TIMER) < 0) {
@@ -67,14 +58,14 @@ main(int argc, char *argv[])
if (desired == 0) {
desired = DEFAULT_RESOLUTION;
}
SDL_SetTimer(desired, ticktock);
t1 = SDL_AddTimer(desired, ticktock, NULL);
/* Wait 10 seconds */
printf("Waiting 10 seconds\n");
SDL_Delay(10 * 1000);
/* Stop the timer */
SDL_SetTimer(0, NULL);
SDL_RemoveTimer(t1);
/* Print the results */
if (ticks) {
@@ -109,14 +100,21 @@ main(int argc, char *argv[])
start = SDL_GetPerformanceCounter();
for (i = 0; i < 1000000; ++i) {
ticktock(0);
ticktock(0, NULL);
}
now = SDL_GetPerformanceCounter();
printf("1 million iterations of ticktock took %f ms\n", (double)((now - start)*1000) / SDL_GetPerformanceFrequency());
printf("Performance counter frequency: %lld\n", SDL_GetPerformanceFrequency());
start32 = SDL_GetTicks();
start = SDL_GetPerformanceCounter();
SDL_Delay(1000);
now = SDL_GetPerformanceCounter();
now32 = SDL_GetTicks();
printf("Delay 1 second = %d ms in ticks, %f ms according to performance counter\n", (now32-start32), (double)((now - start)*1000) / SDL_GetPerformanceFrequency());
SDL_Quit();
return (0);
}
#endif
/* vi: set ts=4 sw=4 expandtab: */