684 lines
17 KiB
C++
684 lines
17 KiB
C++
// Copyright (c) 1998-1999 Microsoft Corporation
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// READ THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!
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//
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// 4530: C++ exception handler used, but unwind semantics are not enabled. Specify -GX
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//
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// We disable this because we use exceptions and do *not* specify -GX (USE_NATIVE_EH in
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// sources).
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//
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// The one place we use exceptions is around construction of objects that call
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// InitializeCriticalSection. We guarantee that it is safe to use in this case with
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// the restriction given by not using -GX (automatic objects in the call chain between
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// throw and handler are not destructed). Turning on -GX buys us nothing but +10% to code
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// size because of the unwind code.
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//
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// Any other use of exceptions must follow these restrictions or -GX must be turned on.
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//
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// READ THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!
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//
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#pragma warning(disable:4530)
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// SysExTrk.cpp : Implementation of CSysExTrk
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#include "dmime.h"
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#include "SysExTrk.h"
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#include "dmusici.h"
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#include "dmusicf.h"
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#include "dmperf.h"
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#include "debug.h"
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#include "..\shared\Validate.h"
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#include "debug.h"
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#define ASSERT assert
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/////////////////////////////////////////////////////////////////////////////
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// CSysExTrack
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void CSysExTrack::Construct()
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{
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InterlockedIncrement(&g_cComponent);
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m_cRef = 1;
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m_dwValidate = 0;
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m_fCSInitialized = FALSE;
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InitializeCriticalSection(&m_CrSec);
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m_fCSInitialized = TRUE;
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}
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CSysExTrack::CSysExTrack()
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{
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Construct();
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}
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CSysExTrack::CSysExTrack(
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CSysExTrack& rTrack, MUSIC_TIME mtStart, MUSIC_TIME mtEnd)
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{
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Construct();
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SysExListItem* pScan = rTrack.m_SysExEventList.GetHead();
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for(; pScan; pScan = pScan->GetNext())
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{
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FullSysexEvent* pItem = pScan->m_pItem;
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if( NULL == pItem )
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{
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continue;
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}
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else if( pItem->mtTime < mtStart )
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{
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continue;
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}
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else if (pItem->mtTime < mtEnd)
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{
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SysExListItem* pNew = new SysExListItem;
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if (pNew)
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{
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FullSysexEvent item;
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item.mtTime = pItem->mtTime - mtStart;
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item.dwSysExLength = pItem->dwSysExLength;
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if (item.dwSysExLength && (item.pbSysExData = new BYTE[item.dwSysExLength]))
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{
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memcpy( item.pbSysExData, pItem->pbSysExData, item.dwSysExLength );
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pNew->SetItem(item);
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m_SysExEventList.AddTail(pNew);
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}
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else
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{
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delete pNew;
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}
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}
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}
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else break;
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}
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}
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CSysExTrack::~CSysExTrack()
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{
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if (m_fCSInitialized)
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{
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DeleteCriticalSection(&m_CrSec);
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}
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InterlockedDecrement(&g_cComponent);
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}
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// method:(EXTERNAL) HRESULT | IDirectMusicSysExTrack | QueryInterface | Standard QueryInterface implementation for <i IDirectMusicSysExTrack>
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//
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// parm const IID & | iid | Interface to query for
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// parm void ** | ppv | The requested interface will be returned here
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//
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// rdesc Returns one of the following:
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//
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// flag S_OK | If the interface is supported and was returned
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// flag E_NOINTERFACE | If the object does not support the given interface.
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//
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// mfunc:(INTERNAL)
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//
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//
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STDMETHODIMP CSysExTrack::QueryInterface(
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const IID &iid, // @parm Interface to query for
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void **ppv) // @parm The requested interface will be returned here
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{
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V_INAME(CSysExTrack::QueryInterface);
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V_PTRPTR_WRITE(ppv);
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V_REFGUID(iid);
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if (iid == IID_IUnknown || iid == IID_IDirectMusicTrack || iid == IID_IDirectMusicTrack8)
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{
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*ppv = static_cast<IDirectMusicTrack*>(this);
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} else
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if (iid == IID_IPersistStream)
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{
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*ppv = static_cast<IPersistStream*>(this);
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} else
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{
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*ppv = NULL;
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Trace(4,"Warning: Request to query unknown interface on Sysex Track\n");
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return E_NOINTERFACE;
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}
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reinterpret_cast<IUnknown*>(this)->AddRef();
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return S_OK;
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}
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// method:(EXTERNAL) HRESULT | IDirectMusicSysExTrack | AddRef | Standard AddRef implementation for <i IDirectMusicSysExTrack>
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//
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// rdesc Returns the new reference count for this object.
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//
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// mfunc:(INTERNAL)
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//
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//
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STDMETHODIMP_(ULONG) CSysExTrack::AddRef()
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{
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return InterlockedIncrement(&m_cRef);
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}
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// method:(EXTERNAL) HRESULT | IDirectMusicSysExTrack | Release | Standard Release implementation for <i IDirectMusicSysExTrack>
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//
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// rdesc Returns the new reference count for this object.
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//
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// mfunc:(INTERNAL)
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//
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//
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STDMETHODIMP_(ULONG) CSysExTrack::Release()
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{
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if (!InterlockedDecrement(&m_cRef))
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{
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delete this;
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return 0;
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}
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return m_cRef;
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}
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/////////////////////////////////////////////////////////////////////////////
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// IPersist
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HRESULT CSysExTrack::GetClassID( CLSID* pClassID )
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{
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V_INAME(CSysExTrack::GetClassID);
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V_PTR_WRITE(pClassID, CLSID);
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*pClassID = CLSID_DirectMusicSysExTrack;
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return S_OK;
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}
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/////////////////////////////////////////////////////////////////////////////
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// IPersistStream functions
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HRESULT CSysExTrack::IsDirty()
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{
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return S_FALSE;
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}
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/*
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method HRESULT | ISeqTrack | Load |
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Call this with an IStream filled with SysExEvents, sorted in time order.
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parm IStream* | pIStream |
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A stream of SysExEvents, sorted in time order. The seek pointer should point
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to the first event. The stream should contain only SysExEvents and nothing more.
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rvalue E_POINTER | If pIStream == NULL or invalid.
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rvalue S_OK
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comm The <p pIStream> will be AddRef'd inside this function and held
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until the SysExTrack is released.
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*/
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HRESULT CSysExTrack::Load( IStream* pIStream )
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{
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V_INAME(CSysExTrack::Load);
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V_INTERFACE(pIStream);
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EnterCriticalSection(&m_CrSec);
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HRESULT hr = S_OK;
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m_dwValidate++;
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if( m_SysExEventList.GetHead() )
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{
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m_SysExEventList.DeleteAll();
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}
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// copy contents of the stream into the list.
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//DMUS_IO_SYSEX_ITEM sysexEvent;
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FullSysexEvent sysexEvent;
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// read in the chunk id
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DWORD dwChunk;
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long lSize;
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pIStream->Read( &dwChunk, sizeof(DWORD), NULL);
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if( dwChunk != DMUS_FOURCC_SYSEX_TRACK )
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{
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Trace(1,"Error: Invalid data in sysex track.\n");
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LeaveCriticalSection(&m_CrSec);
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return DMUS_E_CHUNKNOTFOUND;
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}
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// read in the overall size
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if( FAILED( pIStream->Read( &lSize, sizeof(long), NULL )))
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{
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Trace(1,"Error: Unable to read sysex track.\n");
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LeaveCriticalSection(&m_CrSec);
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return DMUS_E_CANNOTREAD;
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}
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DMUS_IO_SYSEX_ITEM SysexItem;
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BYTE* pbSysExData;
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while( lSize > 0 )
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{
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if( FAILED( pIStream->Read( &SysexItem, sizeof(DMUS_IO_SYSEX_ITEM), NULL )))
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{
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Trace(1,"Error: Unable to read sysex track.\n");
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hr = DMUS_E_CANNOTREAD;
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break;
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}
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lSize -= sizeof(DMUS_IO_SYSEX_ITEM);
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pbSysExData = new BYTE[SysexItem.dwSysExLength];
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if( NULL == pbSysExData )
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{
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hr = E_OUTOFMEMORY;
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break;
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}
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if( FAILED( pIStream->Read( pbSysExData, SysexItem.dwSysExLength, NULL )))
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{
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Trace(1,"Error: Unable to read sysex track.\n");
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hr = DMUS_E_CANNOTREAD;
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break;
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}
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lSize -= SysexItem.dwSysExLength;
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sysexEvent.mtTime = SysexItem.mtTime;
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sysexEvent.dwPChannel = SysexItem.dwPChannel;
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sysexEvent.dwSysExLength = SysexItem.dwSysExLength;
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sysexEvent.pbSysExData = pbSysExData;
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SysExListItem* pNew = new SysExListItem;
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if (pNew)
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{
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if( FAILED( pNew->SetItem(sysexEvent)))
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{
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delete [] pbSysExData;
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hr = E_OUTOFMEMORY;
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break;
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}
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m_SysExEventList.AddTail(pNew);
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}
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else
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{
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delete [] pbSysExData;
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hr = E_OUTOFMEMORY;
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break;
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}
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}
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LeaveCriticalSection(&m_CrSec);
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return hr;
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}
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HRESULT CSysExTrack::Save( IStream* pIStream, BOOL fClearDirty )
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{
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return E_NOTIMPL;
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}
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HRESULT CSysExTrack::GetSizeMax( ULARGE_INTEGER FAR* pcbSize )
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{
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return E_NOTIMPL;
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}
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// IDirectMusicTrack
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HRESULT STDMETHODCALLTYPE CSysExTrack::IsParamSupported(
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/* [in] */ REFGUID rguid)
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{
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return E_NOTIMPL;
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}
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//////////////////////////////////////////////////////////////////////
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// IDirectMusicTrack::Init
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/*
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method HRESULT | IDirectMusicTrack | Init |
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When a track is first added to a Segment, it's Init() routine is called
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by that Segment.
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parm IDirectMusicSegment* | pSegment |
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[in] Pointer to the Segment to which this Track belongs.
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rvalue S_OK
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*/
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HRESULT CSysExTrack::Init(
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/* [in] */ IDirectMusicSegment *pSegment)
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{
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return S_OK;
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}
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HRESULT CSysExTrack::InitPlay(
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/* [in] */ IDirectMusicSegmentState *pSegmentState,
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/* [in] */ IDirectMusicPerformance *pPerformance,
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/* [out] */ void **ppStateData,
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/* [in] */ DWORD dwTrackID,
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/* [in] */ DWORD dwFlags)
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{
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V_INAME(IDirectMusicTrack::InitPlay);
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V_PTRPTR_WRITE(ppStateData);
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V_INTERFACE(pSegmentState);
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V_INTERFACE(pPerformance);
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SysExStateData* pStateData;
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pStateData = new SysExStateData;
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if( NULL == pStateData )
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return E_OUTOFMEMORY;
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*ppStateData = pStateData;
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pStateData->dwVirtualTrackID = dwTrackID;
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pStateData->pPerformance = pPerformance; // weak reference, no addref.
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pStateData->pSegState = pSegmentState; // weak reference, no addref.
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pStateData->pCurrentSysEx = m_SysExEventList.GetHead();
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pStateData->dwValidate = m_dwValidate;
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return S_OK;
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}
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HRESULT CSysExTrack::EndPlay(
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/* [in] */ void *pStateData)
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{
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ASSERT( pStateData );
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if( pStateData )
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{
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V_INAME(IDirectMusicTrack::EndPlay);
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V_BUFPTR_WRITE(pStateData, sizeof(SysExStateData));
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SysExStateData* pSD = (SysExStateData*)pStateData;
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delete pSD;
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}
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return S_OK;
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}
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STDMETHODIMP CSysExTrack::PlayEx(void* pStateData,REFERENCE_TIME rtStart,
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REFERENCE_TIME rtEnd,REFERENCE_TIME rtOffset,
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DWORD dwFlags,IDirectMusicPerformance* pPerf,
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IDirectMusicSegmentState* pSegSt,DWORD dwVirtualID)
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{
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V_INAME(IDirectMusicTrack::PlayEx);
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V_BUFPTR_WRITE( pStateData, sizeof(SysExStateData));
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V_INTERFACE(pPerf);
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V_INTERFACE(pSegSt);
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HRESULT hr;
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EnterCriticalSection(&m_CrSec);
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if (dwFlags & DMUS_TRACKF_CLOCK)
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{
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// Convert all reference times to millisecond times. Then, just use same MUSIC_TIME
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// variables.
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hr = Play(pStateData,(MUSIC_TIME)(rtStart / REF_PER_MIL),(MUSIC_TIME)(rtEnd / REF_PER_MIL),
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(MUSIC_TIME)(rtOffset / REF_PER_MIL),rtOffset,dwFlags,pPerf,pSegSt,dwVirtualID,TRUE);
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}
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else
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{
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hr = Play(pStateData,(MUSIC_TIME)rtStart,(MUSIC_TIME)rtEnd,
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(MUSIC_TIME)rtOffset,0,dwFlags,pPerf,pSegSt,dwVirtualID,FALSE);
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}
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LeaveCriticalSection(&m_CrSec);
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return hr;
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}
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/*
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method HRESULT | CSysExTrack | Play |
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Play method.
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rvalue S_FALSE | If there has been no stream loaded into the Track.
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rvalue S_OK
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*/
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HRESULT CSysExTrack::Play(
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/* [in] */ void *pStateData,
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/* [in] */ MUSIC_TIME mtStart,
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/* [in] */ MUSIC_TIME mtEnd,
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/* [in] */ MUSIC_TIME mtOffset,
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DWORD dwFlags,
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IDirectMusicPerformance* pPerf,
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IDirectMusicSegmentState* pSegSt,
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DWORD dwVirtualID
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)
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{
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V_INAME(IDirectMusicTrack::Play);
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V_BUFPTR_WRITE( pStateData, sizeof(SysExStateData));
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V_INTERFACE(pPerf);
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V_INTERFACE(pSegSt);
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EnterCriticalSection(&m_CrSec);
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HRESULT hr = Play(pStateData,mtStart,mtEnd,mtOffset,0,dwFlags,pPerf,pSegSt,dwVirtualID,FALSE);
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LeaveCriticalSection(&m_CrSec);
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return hr;
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}
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/* The Play method handles both music time and clock time versions, as determined by
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fClockTime. If running in clock time, rtOffset is used to identify the start time
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of the segment. Otherwise, mtOffset. The mtStart and mtEnd parameters are in MUSIC_TIME units
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or milliseconds, depending on which mode.
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*/
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HRESULT CSysExTrack::Play(
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void *pStateData,
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MUSIC_TIME mtStart,
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MUSIC_TIME mtEnd,
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MUSIC_TIME mtOffset,
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REFERENCE_TIME rtOffset,
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DWORD dwFlags,
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IDirectMusicPerformance* pPerf,
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IDirectMusicSegmentState* pSegSt,
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DWORD dwVirtualID,
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BOOL fClockTime)
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{
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if (dwFlags & DMUS_TRACKF_PLAY_OFF)
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{
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return S_OK;
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}
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IDirectMusicGraph* pGraph = NULL;
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DMUS_SYSEX_PMSG* pSysEx;
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SysExStateData* pSD = (SysExStateData*)pStateData;
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HRESULT hr = S_OK;
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BOOL fSeek = (dwFlags & DMUS_TRACKF_SEEK) ? TRUE : FALSE;
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// if mtStart is 0 and dwFlags contains DMUS_TRACKF_START, we want to be sure to
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// send out any negative time events. So, we'll set mtStart to -768.
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if( (mtStart == 0) && ( dwFlags & DMUS_TRACKF_START ))
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{
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mtStart = -768;
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}
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// if pSD->pCurrentSysEx is NULL, and we're in a normal Play call (dwFlags is 0)
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// this means that we either have no events, or we got to the end of the event
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// list previously. So, it's safe to just return.
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if( (pSD->pCurrentSysEx == NULL) && (dwFlags == 0) )
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{
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return S_FALSE;
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}
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if( pSD->dwValidate != m_dwValidate )
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{
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pSD->dwValidate = m_dwValidate;
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pSD->pCurrentSysEx = NULL;
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}
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if( NULL == m_SysExEventList.GetHead() )
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{
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return DMUS_S_END;
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}
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// if the previous end time isn't the same as the current start time,
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// we need to seek to the right position.
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if( fSeek || ( pSD->mtPrevEnd != mtStart ))
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{
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Seek( pStateData, mtStart );
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}
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else if( NULL == pSD->pCurrentSysEx )
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{
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pSD->pCurrentSysEx = m_SysExEventList.GetHead();
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}
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pSD->mtPrevEnd = mtEnd;
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if( FAILED( pSD->pSegState->QueryInterface( IID_IDirectMusicGraph,
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(void**)&pGraph )))
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{
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pGraph = NULL;
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}
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for( ; pSD->pCurrentSysEx; pSD->pCurrentSysEx = pSD->pCurrentSysEx->GetNext() )
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{
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FullSysexEvent* pItem = pSD->pCurrentSysEx->m_pItem;
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if( NULL == pItem )
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{
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continue;
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}
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if( pItem->mtTime >= mtEnd )
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{
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// this time is in the future. Return now to retain the same
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// seek pointers for next time.
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hr = S_OK;
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break;
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}
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if( (pItem->mtTime < mtStart) && !fSeek )
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{
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break;
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}
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// allocate a DMUS_SYSEX_PMSG of the approriate size and read
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// the sysex data into it
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if( SUCCEEDED( hr = pSD->pPerformance->AllocPMsg(
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sizeof(DMUS_SYSEX_PMSG) + pItem->dwSysExLength, (DMUS_PMSG**)&pSysEx ) ) )
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{
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memcpy( pSysEx->abData, pItem->pbSysExData, pItem->dwSysExLength );
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if (fClockTime)
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{
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pSysEx->rtTime = (pItem->mtTime * REF_PER_MIL) + rtOffset;
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pSysEx->dwFlags = DMUS_PMSGF_REFTIME | DMUS_PMSGF_LOCKTOREFTIME;
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}
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else
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|
{
|
|
pSysEx->mtTime = pItem->mtTime + mtOffset;
|
|
pSysEx->dwFlags = DMUS_PMSGF_MUSICTIME;
|
|
}
|
|
pSysEx->dwLen = pItem->dwSysExLength;
|
|
pSysEx->dwPChannel = 0;
|
|
pSysEx->dwVirtualTrackID = pSD->dwVirtualTrackID;
|
|
pSysEx->dwType = DMUS_PMSGT_SYSEX;
|
|
pSysEx->dwGroupID = 0xffffffff;
|
|
|
|
if( pGraph )
|
|
{
|
|
pGraph->StampPMsg( (DMUS_PMSG*)pSysEx );
|
|
}
|
|
if(FAILED(pSD->pPerformance->SendPMsg( (DMUS_PMSG*)pSysEx )))
|
|
{
|
|
pSD->pPerformance->FreePMsg( (DMUS_PMSG*)pSysEx );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = DMUS_S_END;
|
|
break;
|
|
}
|
|
}
|
|
if( pGraph )
|
|
{
|
|
pGraph->Release();
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
HRESULT CSysExTrack::Seek(
|
|
/* [in] */ void *pStateData,
|
|
/* [in] */ MUSIC_TIME mtTime)
|
|
{
|
|
SysExStateData* pSD = (SysExStateData*)pStateData;
|
|
|
|
if( NULL == m_SysExEventList.GetHead() )
|
|
{
|
|
return S_FALSE;
|
|
}
|
|
if( NULL == pSD->pCurrentSysEx )
|
|
{
|
|
pSD->pCurrentSysEx = m_SysExEventList.GetHead();
|
|
}
|
|
// if the current event's time is on or past mtTime, we need to rewind to the beginning
|
|
FullSysexEvent* pItem = pSD->pCurrentSysEx->m_pItem;
|
|
if( pItem->mtTime >= mtTime )
|
|
{
|
|
pSD->pCurrentSysEx = m_SysExEventList.GetHead();
|
|
}
|
|
// now start seeking until we find an event with time on or past mtTime
|
|
for( ; pSD->pCurrentSysEx; pSD->pCurrentSysEx = pSD->pCurrentSysEx->GetNext() )
|
|
{
|
|
pItem = pSD->pCurrentSysEx->m_pItem;
|
|
if( pItem->mtTime >= mtTime )
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
STDMETHODIMP CSysExTrack::GetParam(
|
|
REFGUID rguid,
|
|
MUSIC_TIME mtTime,
|
|
MUSIC_TIME* pmtNext,
|
|
void *pData)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
STDMETHODIMP CSysExTrack::SetParam(
|
|
REFGUID rguid,
|
|
MUSIC_TIME mtTime,
|
|
void *pData)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
STDMETHODIMP CSysExTrack::GetParamEx(REFGUID rguidType,REFERENCE_TIME rtTime,
|
|
REFERENCE_TIME* prtNext,void* pParam,void * pStateData, DWORD dwFlags)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
STDMETHODIMP CSysExTrack::SetParamEx(REFGUID rguidType,REFERENCE_TIME rtTime,
|
|
void* pParam, void * pStateData, DWORD dwFlags)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE CSysExTrack::AddNotificationType(
|
|
/* [in] */ REFGUID rguidNotification)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE CSysExTrack::RemoveNotificationType(
|
|
/* [in] */ REFGUID rguidNotification)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE CSysExTrack::Clone(
|
|
MUSIC_TIME mtStart,
|
|
MUSIC_TIME mtEnd,
|
|
IDirectMusicTrack** ppTrack)
|
|
{
|
|
V_INAME(IDirectMusicTrack::Clone);
|
|
V_PTRPTR_WRITE(ppTrack);
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
if((mtStart < 0 ) || (mtStart > mtEnd))
|
|
{
|
|
Trace(1,"Error: Unable to clone sysex track, invalid start parameter.\n",mtStart);
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
EnterCriticalSection(&m_CrSec);
|
|
|
|
CSysExTrack *pDM;
|
|
|
|
try
|
|
{
|
|
pDM = new CSysExTrack(*this, mtStart, mtEnd);
|
|
}
|
|
catch( ... )
|
|
{
|
|
pDM = NULL;
|
|
}
|
|
|
|
LeaveCriticalSection(&m_CrSec);
|
|
if (pDM == NULL) {
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
hr = pDM->QueryInterface(IID_IDirectMusicTrack, (void**)ppTrack);
|
|
pDM->Release();
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
STDMETHODIMP CSysExTrack::Compose(
|
|
IUnknown* pContext,
|
|
DWORD dwTrackGroup,
|
|
IDirectMusicTrack** ppResultTrack)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
STDMETHODIMP CSysExTrack::Join(
|
|
IDirectMusicTrack* pNewTrack,
|
|
MUSIC_TIME mtJoin,
|
|
IUnknown* pContext,
|
|
DWORD dwTrackGroup,
|
|
IDirectMusicTrack** ppResultTrack)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|