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annotate test/testtimer.c @ 3294:470d0a416aa7

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Fixed bug #714 fuzzyTew@gmail.com 2009-03-14 15:18:45 PDT patch to change HAVE_ICONV to HAVE_ICONV_H There are two separate iconv checks in configure -- one for the header file and one for the library. include/SDL_stdinc.h uses the library define to see whether or not it should reference the types defined in the header, which naturally breaks if the library exists and the header does not.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 21 Sep 2009 11:04:01 +0000
parents c121d94672cb
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1
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2 /* Test program to check the resolution of the SDL timer on the current
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3 platform
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4 */
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5
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6 #include <stdlib.h>
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7 #include <stdio.h>
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8
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9 #include "SDL.h"
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10
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11 #define DEFAULT_RESOLUTION 1
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12
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13 static int ticks = 0;
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14
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15 static Uint32 SDLCALL
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16 ticktock(Uint32 interval)
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17 {
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18 ++ticks;
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19 return (interval);
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20 }
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21
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22 static Uint32 SDLCALL
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23 callback(Uint32 interval, void *param)
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24 {
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25 printf("Timer %d : param = %d\n", interval, (int) (uintptr_t) param);
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26 return interval;
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27 }
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28
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29 int
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30 main(int argc, char *argv[])
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31 {
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32 int desired;
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33 SDL_TimerID t1, t2, t3;
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34
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35 if (SDL_Init(SDL_INIT_TIMER) < 0) {
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36 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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37 return (1);
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38 }
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39
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40 /* Start the timer */
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41 desired = 0;
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42 if (argv[1]) {
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43 desired = atoi(argv[1]);
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44 }
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45 if (desired == 0) {
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46 desired = DEFAULT_RESOLUTION;
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47 }
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48 SDL_SetTimer(desired, ticktock);
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49
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50 /* Wait 10 seconds */
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51 printf("Waiting 10 seconds\n");
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52 SDL_Delay(10 * 1000);
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53
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54 /* Stop the timer */
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55 SDL_SetTimer(0, NULL);
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56
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57 /* Print the results */
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58 if (ticks) {
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59 fprintf(stderr,
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60 "Timer resolution: desired = %d ms, actual = %f ms\n",
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61 desired, (double) (10 * 1000) / ticks);
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62 }
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63
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64 /* Test multiple timers */
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65 printf("Testing multiple timers...\n");
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66 t1 = SDL_AddTimer(100, callback, (void *) 1);
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67 if (!t1)
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68 fprintf(stderr, "Could not create timer 1: %s\n", SDL_GetError());
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69 t2 = SDL_AddTimer(50, callback, (void *) 2);
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70 if (!t2)
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71 fprintf(stderr, "Could not create timer 2: %s\n", SDL_GetError());
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72 t3 = SDL_AddTimer(233, callback, (void *) 3);
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73 if (!t3)
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74 fprintf(stderr, "Could not create timer 3: %s\n", SDL_GetError());
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75
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76 /* Wait 10 seconds */
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77 printf("Waiting 10 seconds\n");
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78 SDL_Delay(10 * 1000);
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79
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80 printf("Removing timer 1 and waiting 5 more seconds\n");
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81 SDL_RemoveTimer(t1);
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82
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83 SDL_Delay(5 * 1000);
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84
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85 SDL_RemoveTimer(t2);
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86 SDL_RemoveTimer(t3);
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87
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88 SDL_Quit();
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89 return (0);
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90 }