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272 lines
7.3 KiB
C
272 lines
7.3 KiB
C
/*
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* Filter Seeking and Control Interfaces
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*
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* Copyright 2003 Robert Shearman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/* FIXME: critical sections */
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#include "quartz_private.h"
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#include "control_private.h"
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#include "uuids.h"
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#include "wine/debug.h"
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#include <assert.h>
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WINE_DEFAULT_DEBUG_CHANNEL(quartz);
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HRESULT MediaSeekingImpl_Init(LPVOID pUserData, CHANGEPROC fnChangeStop, CHANGEPROC fnChangeStart, CHANGEPROC fnChangeRate, MediaSeekingImpl * pSeeking)
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{
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assert(fnChangeStop && fnChangeStart && fnChangeRate);
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pSeeking->refCount = 1;
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pSeeking->pUserData = pUserData;
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pSeeking->fnChangeRate = fnChangeRate;
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pSeeking->fnChangeStop = fnChangeStop;
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pSeeking->fnChangeStart = fnChangeStart;
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pSeeking->dwCapabilities = AM_SEEKING_CanSeekForwards |
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AM_SEEKING_CanSeekBackwards |
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AM_SEEKING_CanSeekAbsolute |
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AM_SEEKING_CanGetStopPos |
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AM_SEEKING_CanGetDuration;
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pSeeking->llStart = 0;
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pSeeking->llStop = ((ULONGLONG)0x80000000) << 32;
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pSeeking->llDuration = pSeeking->llStop - pSeeking->llStart;
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pSeeking->dRate = 1.0;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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TRACE("(%p)\n", pCapabilities);
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*pCapabilities = This->dwCapabilities;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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HRESULT hr;
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DWORD dwCommonCaps;
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TRACE("(%p)\n", pCapabilities);
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dwCommonCaps = *pCapabilities & This->dwCapabilities;
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if (!dwCommonCaps)
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hr = E_FAIL;
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else
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hr = (*pCapabilities == dwCommonCaps) ? S_OK : S_FALSE;
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*pCapabilities = dwCommonCaps;
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return hr;
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}
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HRESULT WINAPI MediaSeekingImpl_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
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{
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TRACE("(%s)\n", qzdebugstr_guid(pFormat));
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return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
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}
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HRESULT WINAPI MediaSeekingImpl_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat)
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{
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TRACE("(%s)\n", qzdebugstr_guid(pFormat));
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*pFormat = TIME_FORMAT_MEDIA_TIME;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat)
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{
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TRACE("(%s)\n", qzdebugstr_guid(pFormat));
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*pFormat = TIME_FORMAT_MEDIA_TIME;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
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{
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TRACE("(%s)\n", qzdebugstr_guid(pFormat));
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return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
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}
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HRESULT WINAPI MediaSeekingImpl_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
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{
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TRACE("(%s)\n", qzdebugstr_guid(pFormat));
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return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
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}
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HRESULT WINAPI MediaSeekingImpl_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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TRACE("(%p)\n", pDuration);
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*pDuration = This->llDuration;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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TRACE("(%p)\n", pStop);
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*pStop = This->llStop;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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TRACE("(%p)\n", pCurrent);
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*pCurrent = This->llStart;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat)
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{
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if (IsEqualIID(pTargetFormat, &TIME_FORMAT_MEDIA_TIME) && IsEqualIID(pSourceFormat, &TIME_FORMAT_MEDIA_TIME))
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{
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*pTarget = Source;
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return S_OK;
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}
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/* FIXME: clear pTarget? */
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return E_INVALIDARG;
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}
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static inline LONGLONG Adjust(LONGLONG value, LONGLONG * pModifier, DWORD dwFlags)
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{
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switch (dwFlags & AM_SEEKING_PositioningBitsMask)
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{
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case AM_SEEKING_NoPositioning:
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return value;
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case AM_SEEKING_AbsolutePositioning:
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return *pModifier;
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case AM_SEEKING_RelativePositioning:
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case AM_SEEKING_IncrementalPositioning:
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return value + *pModifier;
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default:
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assert(FALSE);
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return 0;
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}
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}
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HRESULT WINAPI MediaSeekingImpl_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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BOOL bChangeStart = FALSE, bChangeStop = FALSE;
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LONGLONG llNewStart, llNewStop;
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TRACE("(%p, %x, %p, %x)\n", pCurrent, dwCurrentFlags, pStop, dwStopFlags);
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llNewStart = Adjust(This->llStart, pCurrent, dwCurrentFlags);
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llNewStop = Adjust(This->llStop, pStop, dwStopFlags);
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if (llNewStart != This->llStart)
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bChangeStart = TRUE;
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if (llNewStop != This->llStop)
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bChangeStop = TRUE;
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This->llStart = llNewStart;
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This->llStop = llNewStop;
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if (dwCurrentFlags & AM_SEEKING_ReturnTime)
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*pCurrent = llNewStart;
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if (dwStopFlags & AM_SEEKING_ReturnTime)
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*pStop = llNewStop;
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if (bChangeStart)
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This->fnChangeStart(This->pUserData);
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if (bChangeStop)
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This->fnChangeStop(This->pUserData);
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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TRACE("(%p, %p)\n", pCurrent, pStop);
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*pCurrent = This->llStart;
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*pStop = This->llStop;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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TRACE("(%p, %p)\n", pEarliest, pLatest);
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*pEarliest = 0;
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*pLatest = This->llDuration;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_SetRate(IMediaSeeking * iface, double dRate)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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BOOL bChangeRate = (dRate != This->dRate);
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TRACE("(%e)\n", dRate);
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This->dRate = dRate;
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if (bChangeRate)
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return This->fnChangeRate(This->pUserData);
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else
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_GetRate(IMediaSeeking * iface, double * dRate)
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{
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MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
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TRACE("(%p)\n", dRate);
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*dRate = This->dRate;
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return S_OK;
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}
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HRESULT WINAPI MediaSeekingImpl_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll)
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{
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TRACE("(%p)\n", pPreroll);
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*pPreroll = 0;
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return S_OK;
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}
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