Sweden-Number/multimedia/time.c

369 lines
10 KiB
C

/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* MMSYTEM time functions
*
* Copyright 1993 Martin Ayotte
*/
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "windef.h"
#include "wine/winbase16.h" /* GetTaskDS */
#include "callback.h"
#include "mmsystem.h"
#include "xmalloc.h"
#include "options.h"
#include "debug.h"
#define USE_FAKE_MM_TIMERS
static MMTIME16 mmSysTimeMS;
static MMTIME16 mmSysTimeSMPTE;
typedef struct tagTIMERENTRY {
UINT wDelay;
UINT wResol;
FARPROC16 lpFunc;
HINSTANCE hInstance;
DWORD dwUser;
UINT wFlags;
UINT wTimerID;
UINT wCurTime;
UINT isWin32;
struct tagTIMERENTRY* Next;
} TIMERENTRY, *LPTIMERENTRY;
static LPTIMERENTRY lpTimerList = NULL;
#ifdef USE_FAKE_MM_TIMERS
static DWORD dwLastCBTick = 0;
static BOOL bUseFakeTimers = FALSE;
static WORD wInCallBackLoop = 0;
#endif
/*
* FIXME
* We're using "1" as the mininum resolution to the timer,
* as Windows 95 does, according to the docs. Maybe it should
* depend on the computers resources!
*/
#define MMSYSTIME_MININTERVAL (1)
#define MMSYSTIME_MAXINTERVAL (65535)
static void TIME_TriggerCallBack(LPTIMERENTRY lpTimer, DWORD dwCurrent)
{
lpTimer->wCurTime = lpTimer->wDelay;
if (lpTimer->lpFunc != (FARPROC16) NULL) {
TRACE(mmtime, "before CallBack16 (%lu)!\n", dwCurrent);
TRACE(mmtime, "lpFunc=%p wTimerID=%04X dwUser=%08lX !\n",
lpTimer->lpFunc, lpTimer->wTimerID, lpTimer->dwUser);
TRACE(mmtime, "hInstance=%04X !\n", lpTimer->hInstance);
/* - TimeProc callback that is called here is something strange, under Windows 3.1x it is called
* during interrupt time, is allowed to execute very limited number of API calls (like
* PostMessage), and must reside in DLL (therefore uses stack of active application). So I
* guess current implementation via SetTimer has to be improved upon.
*/
switch (lpTimer->wFlags & 0x30) {
case TIME_CALLBACK_FUNCTION:
if (lpTimer->isWin32)
lpTimer->lpFunc(lpTimer->wTimerID,0,lpTimer->dwUser,0,0);
else
Callbacks->CallTimeFuncProc(lpTimer->lpFunc,
lpTimer->wTimerID,0,
lpTimer->dwUser,0,0);
break;
case TIME_CALLBACK_EVENT_SET:
SetEvent((HANDLE)lpTimer->lpFunc);
break;
case TIME_CALLBACK_EVENT_PULSE:
PulseEvent((HANDLE)lpTimer->lpFunc);
break;
default:
FIXME(mmtime,"Unknown callback type 0x%04x for mmtime callback (%p),ignored.\n",lpTimer->wFlags,lpTimer->lpFunc);
break;
}
TRACE(mmtime, "after CallBack16 !\n");
}
if (lpTimer->wFlags & TIME_ONESHOT)
timeKillEvent(lpTimer->wTimerID);
}
/**************************************************************************
* TIME_MMSysTimeCallback
*/
static VOID WINAPI TIME_MMSysTimeCallback( HWND hwnd, UINT msg,
UINT id, DWORD dwTime )
{
LPTIMERENTRY lpTimer;
mmSysTimeMS.u.ms += MMSYSTIME_MININTERVAL;
mmSysTimeSMPTE.u.smpte.frame++;
#ifdef USE_FAKE_MM_TIMERS
if (bUseFakeTimers)
dwLastCBTick = GetTickCount();
if (!wInCallBackLoop++)
#endif
for (lpTimer = lpTimerList; lpTimer != NULL; lpTimer = lpTimer->Next) {
if (lpTimer->wCurTime < MMSYSTIME_MININTERVAL) {
TIME_TriggerCallBack(lpTimer, dwTime);
} else {
lpTimer->wCurTime -= MMSYSTIME_MININTERVAL;
}
}
#ifdef USE_FAKE_MM_TIMERS
wInCallBackLoop--;
#endif
}
/**************************************************************************
* StartMMTime [internal]
*/
static void StartMMTime()
{
static BOOL mmTimeStarted = FALSE;
if (!mmTimeStarted) {
mmTimeStarted = TRUE;
mmSysTimeMS.wType = TIME_MS;
mmSysTimeMS.u.ms = 0;
mmSysTimeSMPTE.wType = TIME_SMPTE;
mmSysTimeSMPTE.u.smpte.hour = 0;
mmSysTimeSMPTE.u.smpte.min = 0;
mmSysTimeSMPTE.u.smpte.sec = 0;
mmSysTimeSMPTE.u.smpte.frame = 0;
mmSysTimeSMPTE.u.smpte.fps = 0;
mmSysTimeSMPTE.u.smpte.dummy = 0;
SetTimer( 0, 0, MMSYSTIME_MININTERVAL, TIME_MMSysTimeCallback );
#ifdef USE_FAKE_MM_TIMERS
bUseFakeTimers = PROFILE_GetWineIniBool("options", "MMFakeTimers", TRUE);
TRACE(mmtime, "FakeTimer=%c\n", bUseFakeTimers ? 'Y' : 'N');
if (bUseFakeTimers)
dwLastCBTick = GetTickCount();
#endif
}
}
/**************************************************************************
* timeGetSystemTime [WINMM.140]
*/
MMRESULT WINAPI timeGetSystemTime(LPMMTIME lpTime, UINT wSize)
{
TRACE(mmsys, "(%p, %u);\n", lpTime, wSize);
StartMMTime();
lpTime->wType = TIME_MS;
lpTime->u.ms = mmSysTimeMS.u.ms;
return 0;
}
/**************************************************************************
* timeGetSystemTime [MMSYSTEM.601]
*/
MMRESULT16 WINAPI timeGetSystemTime16(LPMMTIME16 lpTime, UINT16 wSize)
{
TRACE(mmsys, "(%p, %u);\n", lpTime, wSize);
StartMMTime();
lpTime->wType = TIME_MS;
lpTime->u.ms = mmSysTimeMS.u.ms;
return 0;
}
static WORD timeSetEventInternal(UINT wDelay,UINT wResol,
FARPROC16 lpFunc,DWORD dwUser,
UINT wFlags, UINT16 isWin32)
{
WORD wNewID = 0;
LPTIMERENTRY lpNewTimer;
LPTIMERENTRY lpTimer = lpTimerList;
TRACE(mmtime, "(%u, %u, %p, %08lX, %04X);\n",
wDelay, wResol, lpFunc, dwUser, wFlags);
StartMMTime();
lpNewTimer = (LPTIMERENTRY)xmalloc(sizeof(TIMERENTRY));
if (lpNewTimer == NULL)
return 0;
while (lpTimer != NULL) {
wNewID = MAX(wNewID, lpTimer->wTimerID);
lpTimer = lpTimer->Next;
}
lpNewTimer->Next = lpTimerList;
lpTimerList = lpNewTimer;
lpNewTimer->wTimerID = wNewID + 1;
lpNewTimer->wCurTime = wDelay;
lpNewTimer->wDelay = wDelay;
lpNewTimer->wResol = wResol;
lpNewTimer->lpFunc = lpFunc;
lpNewTimer->isWin32 = isWin32;
lpNewTimer->hInstance = GetTaskDS16();
TRACE(mmtime, "hInstance=%04X !\n", lpNewTimer->hInstance);
TRACE(mmtime, "lpFunc=0x%08lx !\n", (DWORD)lpFunc );
lpNewTimer->dwUser = dwUser;
lpNewTimer->wFlags = wFlags;
return lpNewTimer->wTimerID;
}
/**************************************************************************
* timeSetEvent [MMSYSTEM.602]
*/
MMRESULT WINAPI timeSetEvent(UINT wDelay,UINT wResol,
LPTIMECALLBACK lpFunc,DWORD dwUser,
UINT wFlags)
{
return timeSetEventInternal(wDelay, wResol, (FARPROC16)lpFunc,
dwUser, wFlags, 1);
}
/**************************************************************************
* timeSetEvent [MMSYSTEM.602]
*/
MMRESULT16 WINAPI timeSetEvent16(UINT16 wDelay, UINT16 wResol,
LPTIMECALLBACK16 lpFunc,DWORD dwUser,
UINT16 wFlags)
{
return timeSetEventInternal(wDelay, wResol, (FARPROC16)lpFunc,
dwUser, wFlags, 0);
}
/**************************************************************************
* timeKillEvent [WINMM.142]
*/
MMRESULT WINAPI timeKillEvent(UINT wID)
{
LPTIMERENTRY* lpTimer;
for (lpTimer = &lpTimerList; *lpTimer; lpTimer = &((*lpTimer)->Next)) {
if (wID == (*lpTimer)->wTimerID) {
LPTIMERENTRY xlptimer = (*lpTimer)->Next;
free(*lpTimer);
*lpTimer = xlptimer;
return TRUE;
}
}
return 0;
}
/**************************************************************************
* timeKillEvent [MMSYSTEM.603]
*/
MMRESULT16 WINAPI timeKillEvent16(UINT16 wID)
{
return timeKillEvent(wID);
}
/**************************************************************************
* timeGetDevCaps [WINMM.139]
*/
MMRESULT WINAPI timeGetDevCaps(LPTIMECAPS lpCaps,UINT wSize)
{
TRACE(mmtime, "(%p, %u) !\n", lpCaps, wSize);
StartMMTime();
lpCaps->wPeriodMin = MMSYSTIME_MININTERVAL;
lpCaps->wPeriodMax = MMSYSTIME_MAXINTERVAL;
return 0;
}
/**************************************************************************
* timeGetDevCaps [MMSYSTEM.604]
*/
MMRESULT16 WINAPI timeGetDevCaps16(LPTIMECAPS16 lpCaps, UINT16 wSize)
{
TRACE(mmtime, "(%p, %u) !\n", lpCaps, wSize);
StartMMTime();
lpCaps->wPeriodMin = MMSYSTIME_MININTERVAL;
lpCaps->wPeriodMax = MMSYSTIME_MAXINTERVAL;
return 0;
}
/**************************************************************************
* timeBeginPeriod [WINMM.137]
*/
MMRESULT WINAPI timeBeginPeriod(UINT wPeriod)
{
TRACE(mmtime, "(%u) !\n", wPeriod);
StartMMTime();
if (wPeriod < MMSYSTIME_MININTERVAL || wPeriod > MMSYSTIME_MAXINTERVAL)
return TIMERR_NOCANDO;
return 0;
}
/**************************************************************************
* timeBeginPeriod [MMSYSTEM.605]
*/
MMRESULT16 WINAPI timeBeginPeriod16(UINT16 wPeriod)
{
TRACE(mmtime, "(%u) !\n", wPeriod);
StartMMTime();
if (wPeriod < MMSYSTIME_MININTERVAL || wPeriod > MMSYSTIME_MAXINTERVAL)
return TIMERR_NOCANDO;
return 0;
}
/**************************************************************************
* timeEndPeriod [WINMM.138]
*/
MMRESULT WINAPI timeEndPeriod(UINT wPeriod)
{
TRACE(mmtime, "(%u) !\n", wPeriod);
StartMMTime();
if (wPeriod < MMSYSTIME_MININTERVAL || wPeriod > MMSYSTIME_MAXINTERVAL)
return TIMERR_NOCANDO;
return 0;
}
/**************************************************************************
* timeEndPeriod [MMSYSTEM.606]
*/
MMRESULT16 WINAPI timeEndPeriod16(UINT16 wPeriod)
{
TRACE(mmtime, "(%u) !\n", wPeriod);
if (wPeriod < MMSYSTIME_MININTERVAL || wPeriod > MMSYSTIME_MAXINTERVAL)
return TIMERR_NOCANDO;
return 0;
}
/**************************************************************************
* timeGetTime [MMSYSTEM.607][WINMM.141]
*/
DWORD WINAPI timeGetTime()
{
DWORD dwNewTick = GetTickCount();
StartMMTime();
#ifdef USE_FAKE_MM_TIMERS
if (bUseFakeTimers) {
if (!wInCallBackLoop++) {
DWORD dwDelta;
if (dwNewTick < dwLastCBTick) {
ERR(mmtime, "dwNewTick(%lu) < dwLastCBTick(%lu)\n", dwNewTick, dwLastCBTick);
}
dwDelta = dwNewTick - dwLastCBTick;
if (dwDelta > MMSYSTIME_MININTERVAL) {
LPTIMERENTRY lpTimer;
mmSysTimeMS.u.ms += dwDelta; /* FIXME: faked timer */
dwLastCBTick = dwNewTick;
for (lpTimer = lpTimerList; lpTimer != NULL; lpTimer = lpTimer->Next) {
if (lpTimer->wCurTime < dwDelta) {
TIME_TriggerCallBack(lpTimer, dwNewTick);
} else {
lpTimer->wCurTime -= dwDelta;
}
}
}
}
dwNewTick = mmSysTimeMS.u.ms;
wInCallBackLoop--;
}
#endif
return dwNewTick;
}