clock.c

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/*
 * IReferenceClock Implementation
 *
 * Copyright (C) 2003-2004 Rok Mandeljc
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include "dmusic_private.h"
 
WINE_DEFAULT_DEBUG_CHANNEL(dmusic);
 
static inline IReferenceClockImpl *impl_from_IReferenceClock(IReferenceClock *iface)
{
    return CONTAINING_RECORD(iface, IReferenceClockImpl, IReferenceClock_iface);
}
 
/* IReferenceClockImpl IUnknown part: */
static HRESULT WINAPI IReferenceClockImpl_QueryInterface(IReferenceClock *iface, REFIID riid, LPVOID *ppobj)
{
    IReferenceClockImpl *This = impl_from_IReferenceClock(iface);
    TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
 
    if (IsEqualIID (riid, &IID_IUnknown) || 
        IsEqualIID (riid, &IID_IReferenceClock)) {
        IUnknown_AddRef(iface);
        *ppobj = This;
        return S_OK;
    }
    WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
    return E_NOINTERFACE;
}
 
static ULONG WINAPI IReferenceClockImpl_AddRef(IReferenceClock *iface)
{
    IReferenceClockImpl *This = impl_from_IReferenceClock(iface);
    ULONG ref = InterlockedIncrement(&This->ref);
 
    TRACE("(%p): new ref = %lu\n", This, ref);
 
    return ref;
}
 
static ULONG WINAPI IReferenceClockImpl_Release(IReferenceClock *iface)
{
    IReferenceClockImpl *This = impl_from_IReferenceClock(iface);
    ULONG ref = InterlockedDecrement(&This->ref);
 
    TRACE("(%p): new ref = %lu\n", This, ref);
 
    if (!ref) {
        free(This);
    }
 
    return ref;
}
 
/* IReferenceClockImpl IReferenceClock part: */
static HRESULT WINAPI IReferenceClockImpl_GetTime(IReferenceClock *iface, REFERENCE_TIME* pTime)
{
    IReferenceClockImpl *This = impl_from_IReferenceClock(iface);
 
    TRACE("(%p)->(%p)\n", This, pTime);
 
    *pTime = This->rtTime;
 
    return S_OK;
}
 
static HRESULT WINAPI IReferenceClockImpl_AdviseTime(IReferenceClock *iface, REFERENCE_TIME base,
        REFERENCE_TIME offset, HEVENT event, DWORD_PTR *cookie)
{
    IReferenceClockImpl *This = impl_from_IReferenceClock(iface);
    FIXME("(%p)->(%I64d, %I64d, %#Ix, %p): stub\n", This, base, offset, event, cookie);
    return S_OK;
}
 
static HRESULT WINAPI IReferenceClockImpl_AdvisePeriodic(IReferenceClock *iface, REFERENCE_TIME start,
        REFERENCE_TIME period, HSEMAPHORE semaphore, DWORD_PTR *cookie)
{
    IReferenceClockImpl *This = impl_from_IReferenceClock(iface);
    FIXME("(%p)->(%I64d, %I64d, %#Ix, %p): stub\n", This, start, period, semaphore, cookie);
    return S_OK;
}
 
static HRESULT WINAPI IReferenceClockImpl_Unadvise(IReferenceClock *iface, DWORD_PTR cookie)
{
    IReferenceClockImpl *This = impl_from_IReferenceClock(iface);
    FIXME("(%p, %#Ix): stub\n", This, cookie);
    return S_OK;
}
 
static const IReferenceClockVtbl ReferenceClock_Vtbl = {
    IReferenceClockImpl_QueryInterface,
    IReferenceClockImpl_AddRef,
    IReferenceClockImpl_Release,
    IReferenceClockImpl_GetTime,
    IReferenceClockImpl_AdviseTime,
    IReferenceClockImpl_AdvisePeriodic,
    IReferenceClockImpl_Unadvise
};
 
/* for ClassFactory */
HRESULT DMUSIC_CreateReferenceClockImpl(LPCGUID riid, LPVOID* ret_iface, LPUNKNOWN unkouter)
{
    IReferenceClockImpl* clock;
    HRESULT hr;
 
    TRACE("(%s, %p, %p)\n", debugstr_guid(riid), ret_iface, unkouter);
 
    clock = calloc(1, sizeof(IReferenceClockImpl));
    if (!clock) {
        *ret_iface = NULL;
        return E_OUTOFMEMORY;
    }
 
    clock->IReferenceClock_iface.lpVtbl = &ReferenceClock_Vtbl;
    clock->ref = 1;
    clock->rtTime = 0;
    clock->pClockInfo.dwSize = sizeof (DMUS_CLOCKINFO);
 
    hr = IReferenceClockImpl_QueryInterface(&clock->IReferenceClock_iface, riid, ret_iface);
    IReferenceClock_Release(&clock->IReferenceClock_iface);
 
    return hr;
}