Sweden-Number/dlls/quartz/control.c

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/*
* Filter Seeking and Control Interfaces
*
* Copyright 2003 Robert Shearman
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* FIXME: critical sections */
#include "quartz_private.h"
#include "control_private.h"
#include "uuids.h"
#include "wine/debug.h"
#include <assert.h>
WINE_DEFAULT_DEBUG_CHANNEL(quartz);
HRESULT MediaSeekingImpl_Init(LPVOID pUserData, CHANGEPROC fnChangeStop, CHANGEPROC fnChangeStart, CHANGEPROC fnChangeRate, MediaSeekingImpl * pSeeking)
{
assert(fnChangeStop && fnChangeStart && fnChangeRate);
pSeeking->refCount = 1;
pSeeking->pUserData = pUserData;
pSeeking->fnChangeRate = fnChangeRate;
pSeeking->fnChangeStop = fnChangeStop;
pSeeking->fnChangeStart = fnChangeStart;
pSeeking->dwCapabilities = AM_SEEKING_CanSeekForwards |
AM_SEEKING_CanSeekBackwards |
AM_SEEKING_CanSeekAbsolute |
AM_SEEKING_CanGetStopPos |
AM_SEEKING_CanGetDuration;
pSeeking->llStart = 0;
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pSeeking->llStop = ((ULONGLONG)0x80000000) << 32;
pSeeking->llDuration = pSeeking->llStop - pSeeking->llStart;
pSeeking->dRate = 1.0;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
TRACE("(%p)\n", pCapabilities);
*pCapabilities = This->dwCapabilities;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
HRESULT hr;
DWORD dwCommonCaps;
TRACE("(%p)\n", pCapabilities);
dwCommonCaps = *pCapabilities & This->dwCapabilities;
if (!dwCommonCaps)
hr = E_FAIL;
else
hr = (*pCapabilities == dwCommonCaps) ? S_OK : S_FALSE;
*pCapabilities = dwCommonCaps;
return hr;
}
HRESULT WINAPI MediaSeekingImpl_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
{
TRACE("(%s)\n", qzdebugstr_guid(pFormat));
return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
}
HRESULT WINAPI MediaSeekingImpl_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat)
{
TRACE("(%s)\n", qzdebugstr_guid(pFormat));
*pFormat = TIME_FORMAT_MEDIA_TIME;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat)
{
TRACE("(%s)\n", qzdebugstr_guid(pFormat));
*pFormat = TIME_FORMAT_MEDIA_TIME;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
{
TRACE("(%s)\n", qzdebugstr_guid(pFormat));
return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
}
HRESULT WINAPI MediaSeekingImpl_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
{
TRACE("(%s)\n", qzdebugstr_guid(pFormat));
return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
}
HRESULT WINAPI MediaSeekingImpl_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
TRACE("(%p)\n", pDuration);
*pDuration = This->llDuration;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
TRACE("(%p)\n", pStop);
*pStop = This->llStop;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
TRACE("(%p)\n", pCurrent);
*pCurrent = This->llStart;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat)
{
if (IsEqualIID(pTargetFormat, &TIME_FORMAT_MEDIA_TIME) && IsEqualIID(pSourceFormat, &TIME_FORMAT_MEDIA_TIME))
{
*pTarget = Source;
return S_OK;
}
/* FIXME: clear pTarget? */
return E_INVALIDARG;
}
__inline LONGLONG Adjust(LONGLONG value, LONGLONG * pModifier, DWORD dwFlags)
{
switch (dwFlags & AM_SEEKING_PositioningBitsMask)
{
case AM_SEEKING_NoPositioning:
return value;
case AM_SEEKING_AbsolutePositioning:
return *pModifier;
case AM_SEEKING_RelativePositioning:
case AM_SEEKING_IncrementalPositioning:
return value + *pModifier;
default:
assert(FALSE);
return 0;
}
}
HRESULT WINAPI MediaSeekingImpl_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
BOOL bChangeStart = FALSE, bChangeStop = FALSE;
LONGLONG llNewStart, llNewStop;
TRACE("(%p, %lx, %p, %lx)\n", pCurrent, dwCurrentFlags, pStop, dwStopFlags);
llNewStart = Adjust(This->llStart, pCurrent, dwCurrentFlags);
llNewStop = Adjust(This->llStop, pStop, dwStopFlags);
if (llNewStart != This->llStart)
bChangeStart = TRUE;
if (llNewStop != This->llStop)
bChangeStop = TRUE;
This->llStart = llNewStart;
This->llStop = llNewStop;
if (dwCurrentFlags & AM_SEEKING_ReturnTime)
*pCurrent = llNewStart;
if (dwStopFlags & AM_SEEKING_ReturnTime)
*pStop = llNewStop;
if (bChangeStart)
This->fnChangeStart(This->pUserData);
if (bChangeStop)
This->fnChangeStop(This->pUserData);
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
TRACE("(%p, %p)\n", pCurrent, pStop);
*pCurrent = This->llStart;
*pStop = This->llStop;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
TRACE("(%p, %p)\n", pEarliest, pLatest);
*pEarliest = 0;
*pLatest = This->llDuration;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_SetRate(IMediaSeeking * iface, double dRate)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
BOOL bChangeRate = (dRate != This->dRate);
TRACE("(%e)\n", dRate);
This->dRate = dRate;
if (bChangeRate)
return This->fnChangeRate(This->pUserData);
else
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_GetRate(IMediaSeeking * iface, double * dRate)
{
MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
TRACE("(%p)\n", dRate);
*dRate = This->dRate;
return S_OK;
}
HRESULT WINAPI MediaSeekingImpl_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll)
{
TRACE("(%p)\n", pPreroll);
*pPreroll = 0;
return S_OK;
}