dlls/winmm/tests/timer.c

   1 /*
   2  * Test winmm timer
   3  *
   4  * Copyright (c) 2005 Robert Reif
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <math.h>
  25
  26 #include "wine/test.h"
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winnls.h"
  30 #include "mmsystem.h"
  31 #define NOBITMAP
  32 #include "mmreg.h"
  33
  34 #include "winmm_test.h"
  35
  36 static TIMECAPS tc;
  37
  38 static void test_timeGetDevCaps(void)
  39 {
  40    MMRESULT rc;
  41
  42     rc = timeGetDevCaps(&tc, 0);
  43     ok(rc == TIMERR_NOCANDO || rc == MMSYSERR_INVALPARAM,
  44        "timeGetDevCaps() returned %s, should have returned TIMERR_NOCANDO "
  45        "or MMSYSERR_INVALPARAM\n", mmsys_error(rc));
  46
  47     rc = timeGetDevCaps(0, sizeof(tc));
  48     ok(rc == TIMERR_NOCANDO || rc == TIMERR_STRUCT,
  49        "timeGetDevCaps() returned %s, should have returned TIMERR_NOCANDO "
  50        "or TIMERR_STRUCT\n", mmsys_error(rc));
  51
  52     rc = timeGetDevCaps(0, 0);
  53     ok(rc == TIMERR_NOCANDO || rc == MMSYSERR_INVALPARAM,
  54        "timeGetDevCaps() returned %s, should have returned TIMERR_NOCANDO "
  55        "or MMSYSERR_INVALPARAM\n", mmsys_error(rc));
  56
  57     rc = timeGetDevCaps(&tc, sizeof(tc));
  58     ok(rc == TIMERR_NOERROR, "timeGetDevCaps() returned %s, "
  59        "should have returned TIMERR_NOERROR\n", mmsys_error(rc));
  60
  61     if (rc == TIMERR_NOERROR)
  62         trace("wPeriodMin = %u, wPeriodMax = %u\n",
  63               tc.wPeriodMin, tc.wPeriodMax);
  64 }
  65
  66 #define NUM_SAMPLES    100
  67
  68 static DWORD count = 0;
  69 static DWORD times[NUM_SAMPLES];
  70
  71 static void CALLBACK testTimeProc(UINT uID, UINT uMsg, DWORD_PTR dwUser,
  72                                   DWORD_PTR dw1, DWORD_PTR dw2)
  73 {
  74     if (count < NUM_SAMPLES)
  75         times[count++] = timeGetTime();
  76 }
  77
  78 static void test_timer(UINT period, UINT resolution)
  79 {
  80     MMRESULT rc;
  81     UINT i, id, delta;
  82     DWORD dwMin = 0xffffffff, dwMax = 0;
  83     double sum = 0.0;
  84     double deviation = 0.0;
  85
  86     count = 0;
  87
  88     for (i = 0; i < NUM_SAMPLES; i++)
  89         times[i] = 0;
  90
  91     rc = timeBeginPeriod(period);
  92     ok(rc == TIMERR_NOERROR, "timeBeginPeriod(%u) returned %s, "
  93        "should have returned TIMERR_NOERROR\n", period, mmsys_error(rc));
  94     if (rc != TIMERR_NOERROR)
  95         return;
  96
  97     id = timeSetEvent(period, resolution, testTimeProc, 0, TIME_PERIODIC);
  98     ok(id != 0, "timeSetEvent(%u, %u, %p, 0, TIME_PERIODIC) returned %d, "
  99        "should have returned id > 0\n", period, resolution, testTimeProc, id);
 100     if (id == 0)
 101         return;
 102
 103     Sleep((NUM_SAMPLES * period) + (2 * period));
 104
 105     rc = timeEndPeriod(period);
 106     ok(rc == TIMERR_NOERROR, "timeEndPeriod(%u) returned %s, "
 107        "should have returned TIMERR_NOERROR\n", period, mmsys_error(rc));
 108     if (rc != TIMERR_NOERROR)
 109         return;
 110
 111     rc = timeKillEvent(id);
 112     ok(rc == TIMERR_NOERROR, "timeKillEvent(%u) returned %s, "
 113        "should have returned TIMERR_NOERROR\n", id, mmsys_error(rc));
 114
 115     trace("period = %u, resolution = %u\n", period, resolution);
 116
 117     for (i = 0; i < count; i++)
 118     {
 119         if (i == 0)
 120         {
 121             if (winetest_debug > 1)
 122                 trace("time[%d] = %u\n", i, times[i]);
 123         }
 124         else
 125         {
 126             delta = times[i] - times[i - 1];
 127
 128             if (winetest_debug > 1)
 129                 trace("time[%d] = %u delta = %d\n", i, times[i], delta);
 130
 131             sum += delta;
 132             deviation += ((delta - period) * (delta - period));
 133
 134             if (delta < dwMin)
 135                 dwMin = delta;
 136
 137             if (delta > dwMax)
 138                 dwMax = delta;
 139         }
 140     }
 141
 142     trace("min = %u, max = %u, average = %f, standard deviation = %f\n",
 143           dwMin, dwMax, sum / (count - 1), sqrt(deviation / (count - 2)));
 144 }
 145
 146 static const char * get_priority(int priority)
 147 {
 148     static char     tmp[32];
 149 #define STR(x) case x: return #x
 150     switch(priority) {
 151     STR(THREAD_PRIORITY_LOWEST);
 152     STR(THREAD_PRIORITY_BELOW_NORMAL);
 153     STR(THREAD_PRIORITY_NORMAL);
 154     STR(THREAD_PRIORITY_HIGHEST);
 155     STR(THREAD_PRIORITY_ABOVE_NORMAL);
 156     STR(THREAD_PRIORITY_TIME_CRITICAL);
 157     STR(THREAD_PRIORITY_IDLE);
 158     }
 159     sprintf(tmp, "UNKNOWN(%d)", priority);
 160     return tmp;
 161 }
 162
 163 static int priority = 0;
 164 static BOOL fired = FALSE;
 165
 166 static void CALLBACK priorityTimeProc(UINT uID, UINT uMsg, DWORD_PTR dwUser,
 167                                       DWORD_PTR dw1, DWORD_PTR dw2)
 168 {
 169     priority = GetThreadPriority(GetCurrentThread());
 170     ok(priority!=THREAD_PRIORITY_ERROR_RETURN, "GetThreadPriority() failed, GetLastError() = %u\n", GetLastError());
 171     fired = TRUE;
 172 }
 173
 174 static void test_priority(void)
 175 {
 176     UINT id;
 177
 178     id = timeSetEvent(100, 100, priorityTimeProc, 0, TIME_ONESHOT);
 179     ok(id != 0, "timeSetEvent(100, 100, %p, 0, TIME_ONESHOT) returned %d, "
 180        "should have returned id > 0\n", priorityTimeProc, id);
 181     if (id == 0)
 182         return;
 183
 184     Sleep(200);
 185
 186     ok(fired == TRUE, "Callback not called\n");
 187     if (fired)
 188     {
 189         ok(priority == THREAD_PRIORITY_TIME_CRITICAL,
 190            "thread priority is %s, should be THREAD_PRIORITY_TIME_CRITICAL\n",
 191            get_priority(priority));
 192     }
 193     timeKillEvent(id);
 194 }
 195
 196 START_TEST(timer)
 197 {
 198     test_timeGetDevCaps();
 199
 200     if (tc.wPeriodMin <= 1) {
 201         test_timer(1, 0);
 202         test_timer(1, 1);
 203     }
 204
 205     if (tc.wPeriodMin <= 10) {
 206         test_timer(10, 0);
 207         test_timer(10, 1);
 208         test_timer(10, 10);
 209     }
 210
 211     if (tc.wPeriodMin <= 20) {
 212         test_timer(20, 0);
 213         test_timer(20, 1);
 214         test_timer(20, 10);
 215         test_timer(20, 20);
 216     }
 217
 218     test_priority();
 219 }