Windows2003-3790/multimedia/directx/dmusic/dmscript/autsegmentstate.cpp

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2001-01-01 00:00:00 +01:00
// Copyright (c) 1999 Microsoft Corporation. All rights reserved.
//
// Implementation of CAutDirectMusicSegmentState.
//
#include "stdinc.h"
#include "autsegmentstate.h"
#include "activescript.h"
#include "autconstants.h"
#include <limits>
const WCHAR CAutDirectMusicSegmentState::ms_wszClassName[] = L"SegmentState";
//////////////////////////////////////////////////////////////////////
// Method Names/DispIDs
const DISPID DMPDISP_IsPlaying = 1;
const DISPID DMPDISP_Stop = 2;
const AutDispatchMethod CAutDirectMusicSegmentState::ms_Methods[] =
{
// dispid, name,
// return: type, (opt), (iid),
// parm 1: type, opt, iid,
// parm 2: type, opt, iid,
// ...
// ADT_None
{ DMPDISP_IsPlaying, L"IsPlaying",
ADT_Long, true, &IID_NULL, // returns true if playing
ADT_None },
{ DMPDISP_Stop, L"Stop",
ADPARAM_NORETURN,
ADT_Long, true, &IID_NULL, // flags
ADT_None },
{ DISPID_UNKNOWN }
};
const DispatchHandlerEntry<CAutDirectMusicSegmentState> CAutDirectMusicSegmentState::ms_Handlers[] =
{
{ DMPDISP_IsPlaying, IsPlaying },
{ DMPDISP_Stop, Stop },
{ DISPID_UNKNOWN }
};
//////////////////////////////////////////////////////////////////////
// Creation
CAutDirectMusicSegmentState::CAutDirectMusicSegmentState(
IUnknown* pUnknownOuter,
const IID& iid,
void** ppv,
HRESULT *phr)
: BaseImpSegSt(pUnknownOuter, iid, ppv, phr)
{
}
HRESULT
CAutDirectMusicSegmentState::CreateInstance(
IUnknown* pUnknownOuter,
const IID& iid,
void** ppv)
{
HRESULT hr = S_OK;
CAutDirectMusicSegmentState *pInst = new CAutDirectMusicSegmentState(pUnknownOuter, iid, ppv, &hr);
if (FAILED(hr))
{
delete pInst;
return hr;
}
if (pInst == NULL)
return E_OUTOFMEMORY;
return hr;
}
//////////////////////////////////////////////////////////////////////
// Automation
HRESULT
CAutDirectMusicSegmentState::IsPlaying(AutDispatchDecodedParams *paddp)
{
LONG *plRet = reinterpret_cast<LONG*>(paddp->pvReturn);
if (!plRet)
return S_OK;
IDirectMusicPerformance *pPerf = CActiveScriptManager::GetCurrentPerformanceWEAK();
HRESULT hr = pPerf->IsPlaying(NULL, m_pITarget);
*plRet = ::BoolForVB(hr == S_OK);
return hr;
}
const FlagMapEntry gc_flagmapStop[] =
{
{ ScriptConstants::AtGrid, DMUS_SEGF_GRID },
{ ScriptConstants::AtBeat, DMUS_SEGF_BEAT },
{ ScriptConstants::AtMeasure, DMUS_SEGF_MEASURE },
{ ScriptConstants::AtImmediate, DMUS_SEGF_DEFAULT }, // this flag gets flipped later
{ 0 }
};
HRESULT
CAutDirectMusicSegmentState::Stop(AutDispatchDecodedParams *paddp)
{
LONG lFlags = paddp->params[0].lVal;
DWORD dwFlags = MapFlags(lFlags, gc_flagmapStop);
// Reverse the default flag because our flag means the opposite. Default is the default and immediate is the flag.
dwFlags ^= DMUS_SEGF_DEFAULT;
IDirectMusicPerformance8 *pPerformance = CActiveScriptManager::GetCurrentPerformanceWEAK();
__int64 i64IntendedStartTime;
DWORD dwIntendedStartTimeFlags;
CActiveScriptManager::GetCurrentTimingContext(&i64IntendedStartTime, &dwIntendedStartTimeFlags);
HRESULT hr = pPerformance->Stop(NULL, m_pITarget, i64IntendedStartTime, dwFlags | dwIntendedStartTimeFlags);
return hr;
}