| /* IDirectMusicGraph |
| * |
| * 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 "dmime_private.h" |
| #include "dmobject.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(dmime); |
| WINE_DECLARE_DEBUG_CHANNEL(dmfile); |
| |
| struct IDirectMusicGraphImpl { |
| IDirectMusicGraph IDirectMusicGraph_iface; |
| struct dmobject dmobj; |
| LONG ref; |
| WORD num_tools; |
| struct list Tools; |
| }; |
| |
| static inline IDirectMusicGraphImpl *impl_from_IDirectMusicGraph(IDirectMusicGraph *iface) |
| { |
| return CONTAINING_RECORD(iface, IDirectMusicGraphImpl, IDirectMusicGraph_iface); |
| } |
| |
| static inline IDirectMusicGraphImpl *impl_from_IDirectMusicObject(IDirectMusicObject *iface) |
| { |
| return CONTAINING_RECORD(iface, IDirectMusicGraphImpl, dmobj.IDirectMusicObject_iface); |
| } |
| |
| static inline IDirectMusicGraphImpl *impl_from_IPersistStream(IPersistStream *iface) |
| { |
| return CONTAINING_RECORD(iface, IDirectMusicGraphImpl, dmobj.IPersistStream_iface); |
| } |
| |
| static HRESULT WINAPI DirectMusicGraph_QueryInterface(IDirectMusicGraph *iface, REFIID riid, void **ret_iface) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface); |
| |
| TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ret_iface); |
| |
| *ret_iface = NULL; |
| |
| if (IsEqualIID(riid, &IID_IUnknown) || |
| IsEqualIID(riid, &IID_IDirectMusicGraph)) |
| { |
| *ret_iface = &This->IDirectMusicGraph_iface; |
| } |
| else if (IsEqualIID(riid, &IID_IDirectMusicObject)) |
| *ret_iface = &This->dmobj.IDirectMusicObject_iface; |
| else if (IsEqualIID(riid, &IID_IPersistStream)) |
| *ret_iface = &This->dmobj.IPersistStream_iface; |
| |
| if (*ret_iface) |
| { |
| IDirectMusicGraph_AddRef(iface); |
| return S_OK; |
| } |
| |
| WARN("(%p, %s, %p): not found\n", This, debugstr_guid(riid), ret_iface); |
| return E_NOINTERFACE; |
| } |
| |
| static ULONG WINAPI DirectMusicGraph_AddRef(IDirectMusicGraph *iface) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface); |
| ULONG ref = InterlockedIncrement(&This->ref); |
| |
| TRACE("(%p): %d\n", This, ref); |
| |
| DMIME_LockModule(); |
| return ref; |
| } |
| |
| static ULONG WINAPI DirectMusicGraph_Release(IDirectMusicGraph *iface) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface); |
| ULONG ref = InterlockedDecrement(&This->ref); |
| |
| TRACE("(%p): %d\n", This, ref); |
| |
| if (ref == 0) |
| HeapFree(GetProcessHeap(), 0, This); |
| |
| DMIME_UnlockModule(); |
| return ref; |
| } |
| |
| static HRESULT WINAPI DirectMusicGraph_StampPMsg(IDirectMusicGraph *iface, DMUS_PMSG *msg) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface); |
| FIXME("(%p, %p): stub\n", This, msg); |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI DirectMusicGraph_InsertTool(IDirectMusicGraph *iface, IDirectMusicTool* pTool, DWORD* pdwPChannels, DWORD cPChannels, LONG lIndex) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface); |
| struct list* pEntry = NULL; |
| struct list* pPrevEntry = NULL; |
| LPDMUS_PRIVATE_GRAPH_TOOL pIt = NULL; |
| LPDMUS_PRIVATE_GRAPH_TOOL pNewTool = NULL; |
| |
| FIXME("(%p, %p, %p, %d, %i): use of pdwPChannels\n", This, pTool, pdwPChannels, cPChannels, lIndex); |
| |
| if (!pTool) |
| return E_POINTER; |
| |
| if (lIndex < 0) |
| lIndex = This->num_tools + lIndex; |
| |
| pPrevEntry = &This->Tools; |
| LIST_FOR_EACH(pEntry, &This->Tools) |
| { |
| pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_GRAPH_TOOL, entry); |
| if (pIt->dwIndex == lIndex) |
| return DMUS_E_ALREADY_EXISTS; |
| |
| if (pIt->dwIndex > lIndex) |
| break ; |
| pPrevEntry = pEntry; |
| } |
| |
| ++This->num_tools; |
| pNewTool = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_GRAPH_TOOL)); |
| pNewTool->pTool = pTool; |
| pNewTool->dwIndex = lIndex; |
| IDirectMusicTool8_AddRef(pTool); |
| IDirectMusicTool8_Init(pTool, iface); |
| list_add_tail (pPrevEntry->next, &pNewTool->entry); |
| |
| #if 0 |
| DWORD dwNum = 0; |
| IDirectMusicTool8_GetMediaTypes(pTool, &dwNum); |
| #endif |
| |
| return DS_OK; |
| } |
| |
| static HRESULT WINAPI DirectMusicGraph_GetTool(IDirectMusicGraph *iface, DWORD dwIndex, IDirectMusicTool** ppTool) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface); |
| struct list* pEntry = NULL; |
| LPDMUS_PRIVATE_GRAPH_TOOL pIt = NULL; |
| |
| FIXME("(%p, %d, %p): stub\n", This, dwIndex, ppTool); |
| |
| LIST_FOR_EACH (pEntry, &This->Tools) |
| { |
| pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_GRAPH_TOOL, entry); |
| if (pIt->dwIndex == dwIndex) |
| { |
| *ppTool = pIt->pTool; |
| if (*ppTool) |
| IDirectMusicTool_AddRef(*ppTool); |
| return S_OK; |
| } |
| if (pIt->dwIndex > dwIndex) |
| break ; |
| } |
| |
| return DMUS_E_NOT_FOUND; |
| } |
| |
| static HRESULT WINAPI DirectMusicGraph_RemoveTool(IDirectMusicGraph *iface, IDirectMusicTool* pTool) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface); |
| FIXME("(%p, %p): stub\n", This, pTool); |
| return S_OK; |
| } |
| |
| static const IDirectMusicGraphVtbl DirectMusicGraphVtbl = |
| { |
| DirectMusicGraph_QueryInterface, |
| DirectMusicGraph_AddRef, |
| DirectMusicGraph_Release, |
| DirectMusicGraph_StampPMsg, |
| DirectMusicGraph_InsertTool, |
| DirectMusicGraph_GetTool, |
| DirectMusicGraph_RemoveTool |
| }; |
| |
| static HRESULT WINAPI DirectMusicObject_ParseDescriptor(IDirectMusicObject *iface, IStream *pStream, DMUS_OBJECTDESC *pDesc) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IDirectMusicObject(iface); |
| DMUS_PRIVATE_CHUNK Chunk; |
| DWORD StreamSize, StreamCount, ListSize[1], ListCount[1]; |
| LARGE_INTEGER liMove; /* used when skipping chunks */ |
| |
| TRACE("(%p, %p, %p)\n", This, pStream, pDesc); |
| |
| /* FIXME: should this be determined from stream? */ |
| pDesc->dwValidData |= DMUS_OBJ_CLASS; |
| pDesc->guidClass = CLSID_DirectMusicGraph; |
| |
| IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL); |
| TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize); |
| switch (Chunk.fccID) { |
| case FOURCC_RIFF: { |
| IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL); |
| TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID)); |
| StreamSize = Chunk.dwSize - sizeof(FOURCC); |
| StreamCount = 0; |
| if (Chunk.fccID == DMUS_FOURCC_TOOLGRAPH_FORM) { |
| TRACE_(dmfile)(": graph form\n"); |
| do { |
| IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL); |
| StreamCount += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize; |
| TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize); |
| switch (Chunk.fccID) { |
| case DMUS_FOURCC_GUID_CHUNK: { |
| TRACE_(dmfile)(": GUID chunk\n"); |
| pDesc->dwValidData |= DMUS_OBJ_OBJECT; |
| IStream_Read (pStream, &pDesc->guidObject, Chunk.dwSize, NULL); |
| break; |
| } |
| case DMUS_FOURCC_VERSION_CHUNK: { |
| TRACE_(dmfile)(": version chunk\n"); |
| pDesc->dwValidData |= DMUS_OBJ_VERSION; |
| IStream_Read (pStream, &pDesc->vVersion, Chunk.dwSize, NULL); |
| break; |
| } |
| case DMUS_FOURCC_CATEGORY_CHUNK: { |
| TRACE_(dmfile)(": category chunk\n"); |
| pDesc->dwValidData |= DMUS_OBJ_CATEGORY; |
| IStream_Read (pStream, pDesc->wszCategory, Chunk.dwSize, NULL); |
| break; |
| } |
| case FOURCC_LIST: { |
| IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL); |
| TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID)); |
| ListSize[0] = Chunk.dwSize - sizeof(FOURCC); |
| ListCount[0] = 0; |
| switch (Chunk.fccID) { |
| /* evil M$ UNFO list, which can (!?) contain INFO elements */ |
| case DMUS_FOURCC_UNFO_LIST: { |
| TRACE_(dmfile)(": UNFO list\n"); |
| do { |
| IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL); |
| ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize; |
| TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize); |
| switch (Chunk.fccID) { |
| /* don't ask me why, but M$ puts INFO elements in UNFO list sometimes |
| (though strings seem to be valid unicode) */ |
| case mmioFOURCC('I','N','A','M'): |
| case DMUS_FOURCC_UNAM_CHUNK: { |
| TRACE_(dmfile)(": name chunk\n"); |
| pDesc->dwValidData |= DMUS_OBJ_NAME; |
| IStream_Read (pStream, pDesc->wszName, Chunk.dwSize, NULL); |
| break; |
| } |
| case mmioFOURCC('I','A','R','T'): |
| case DMUS_FOURCC_UART_CHUNK: { |
| TRACE_(dmfile)(": artist chunk (ignored)\n"); |
| liMove.QuadPart = Chunk.dwSize; |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| case mmioFOURCC('I','C','O','P'): |
| case DMUS_FOURCC_UCOP_CHUNK: { |
| TRACE_(dmfile)(": copyright chunk (ignored)\n"); |
| liMove.QuadPart = Chunk.dwSize; |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| case mmioFOURCC('I','S','B','J'): |
| case DMUS_FOURCC_USBJ_CHUNK: { |
| TRACE_(dmfile)(": subject chunk (ignored)\n"); |
| liMove.QuadPart = Chunk.dwSize; |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| case mmioFOURCC('I','C','M','T'): |
| case DMUS_FOURCC_UCMT_CHUNK: { |
| TRACE_(dmfile)(": comment chunk (ignored)\n"); |
| liMove.QuadPart = Chunk.dwSize; |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n"); |
| liMove.QuadPart = Chunk.dwSize; |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| } |
| TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]); |
| } while (ListCount[0] < ListSize[0]); |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unknown (skipping)\n"); |
| liMove.QuadPart = Chunk.dwSize - sizeof(FOURCC); |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| } |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n"); |
| liMove.QuadPart = Chunk.dwSize; |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| } |
| TRACE_(dmfile)(": StreamCount[0] = %d < StreamSize[0] = %d\n", StreamCount, StreamSize); |
| } while (StreamCount < StreamSize); |
| } else { |
| TRACE_(dmfile)(": unexpected chunk; loading failed)\n"); |
| liMove.QuadPart = StreamSize; |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */ |
| return E_FAIL; |
| } |
| |
| TRACE_(dmfile)(": reading finished\n"); |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unexpected chunk; loading failed)\n"); |
| liMove.QuadPart = Chunk.dwSize; |
| IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */ |
| return DMUS_E_INVALIDFILE; |
| } |
| } |
| |
| TRACE(": returning descriptor:\n%s\n", debugstr_DMUS_OBJECTDESC (pDesc)); |
| |
| return S_OK; |
| } |
| |
| static const IDirectMusicObjectVtbl dmobject_vtbl = { |
| dmobj_IDirectMusicObject_QueryInterface, |
| dmobj_IDirectMusicObject_AddRef, |
| dmobj_IDirectMusicObject_Release, |
| dmobj_IDirectMusicObject_GetDescriptor, |
| dmobj_IDirectMusicObject_SetDescriptor, |
| DirectMusicObject_ParseDescriptor |
| }; |
| |
| static HRESULT WINAPI PersistStream_Load(IPersistStream *iface, IStream* pStm) |
| { |
| IDirectMusicGraphImpl *This = impl_from_IPersistStream(iface); |
| FOURCC chunkID; |
| DWORD chunkSize, StreamSize, StreamCount, ListSize[3], ListCount[3]; |
| LARGE_INTEGER liMove; /* used when skipping chunks */ |
| |
| FIXME("(%p, %p): Loading not implemented yet\n", This, pStm); |
| IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL); |
| IStream_Read (pStm, &chunkSize, sizeof(DWORD), NULL); |
| TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (chunkID), chunkSize); |
| switch (chunkID) { |
| case FOURCC_RIFF: { |
| IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL); |
| TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(chunkID)); |
| StreamSize = chunkSize - sizeof(FOURCC); |
| StreamCount = 0; |
| switch (chunkID) { |
| case DMUS_FOURCC_TOOLGRAPH_FORM: { |
| TRACE_(dmfile)(": graph form\n"); |
| do { |
| IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL); |
| IStream_Read (pStm, &chunkSize, sizeof(FOURCC), NULL); |
| StreamCount += sizeof(FOURCC) + sizeof(DWORD) + chunkSize; |
| TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (chunkID), chunkSize); |
| switch (chunkID) { |
| case DMUS_FOURCC_GUID_CHUNK: { |
| TRACE_(dmfile)(": GUID chunk\n"); |
| This->dmobj.desc.dwValidData |= DMUS_OBJ_OBJECT; |
| IStream_Read (pStm, &This->dmobj.desc.guidObject, chunkSize, NULL); |
| break; |
| } |
| case DMUS_FOURCC_VERSION_CHUNK: { |
| TRACE_(dmfile)(": version chunk\n"); |
| This->dmobj.desc.dwValidData |= DMUS_OBJ_VERSION; |
| IStream_Read (pStm, &This->dmobj.desc.vVersion, chunkSize, NULL); |
| break; |
| } |
| case DMUS_FOURCC_CATEGORY_CHUNK: { |
| TRACE_(dmfile)(": category chunk\n"); |
| This->dmobj.desc.dwValidData |= DMUS_OBJ_CATEGORY; |
| IStream_Read (pStm, This->dmobj.desc.wszCategory, chunkSize, NULL); |
| break; |
| } |
| case FOURCC_LIST: { |
| IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL); |
| TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(chunkID)); |
| ListSize[0] = chunkSize - sizeof(FOURCC); |
| ListCount[0] = 0; |
| switch (chunkID) { |
| case DMUS_FOURCC_UNFO_LIST: { |
| TRACE_(dmfile)(": UNFO list\n"); |
| do { |
| IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL); |
| IStream_Read (pStm, &chunkSize, sizeof(FOURCC), NULL); |
| ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + chunkSize; |
| TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (chunkID), chunkSize); |
| switch (chunkID) { |
| /* don't ask me why, but M$ puts INFO elements in UNFO list sometimes |
| (though strings seem to be valid unicode) */ |
| case mmioFOURCC('I','N','A','M'): |
| case DMUS_FOURCC_UNAM_CHUNK: { |
| TRACE_(dmfile)(": name chunk\n"); |
| This->dmobj.desc.dwValidData |= DMUS_OBJ_NAME; |
| IStream_Read (pStm, This->dmobj.desc.wszName, chunkSize, NULL); |
| break; |
| } |
| case mmioFOURCC('I','A','R','T'): |
| case DMUS_FOURCC_UART_CHUNK: { |
| TRACE_(dmfile)(": artist chunk (ignored)\n"); |
| liMove.QuadPart = chunkSize; |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| case mmioFOURCC('I','C','O','P'): |
| case DMUS_FOURCC_UCOP_CHUNK: { |
| TRACE_(dmfile)(": copyright chunk (ignored)\n"); |
| liMove.QuadPart = chunkSize; |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| case mmioFOURCC('I','S','B','J'): |
| case DMUS_FOURCC_USBJ_CHUNK: { |
| TRACE_(dmfile)(": subject chunk (ignored)\n"); |
| liMove.QuadPart = chunkSize; |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| case mmioFOURCC('I','C','M','T'): |
| case DMUS_FOURCC_UCMT_CHUNK: { |
| TRACE_(dmfile)(": comment chunk (ignored)\n"); |
| liMove.QuadPart = chunkSize; |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n"); |
| liMove.QuadPart = chunkSize; |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| } |
| TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]); |
| } while (ListCount[0] < ListSize[0]); |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unknown (skipping)\n"); |
| liMove.QuadPart = chunkSize - sizeof(FOURCC); |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| } |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n"); |
| liMove.QuadPart = chunkSize; |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); |
| break; |
| } |
| } |
| TRACE_(dmfile)(": StreamCount[0] = %d < StreamSize[0] = %d\n", StreamCount, StreamSize); |
| } while (StreamCount < StreamSize); |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unexpected chunk; loading failed)\n"); |
| liMove.QuadPart = StreamSize; |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */ |
| return E_FAIL; |
| } |
| } |
| TRACE_(dmfile)(": reading finished\n"); |
| break; |
| } |
| default: { |
| TRACE_(dmfile)(": unexpected chunk; loading failed)\n"); |
| liMove.QuadPart = chunkSize; |
| IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */ |
| return E_FAIL; |
| } |
| } |
| |
| return S_OK; |
| } |
| |
| static const IPersistStreamVtbl persiststream_vtbl = { |
| dmobj_IPersistStream_QueryInterface, |
| dmobj_IPersistStream_AddRef, |
| dmobj_IPersistStream_Release, |
| dmobj_IPersistStream_GetClassID, |
| unimpl_IPersistStream_IsDirty, |
| PersistStream_Load, |
| unimpl_IPersistStream_Save, |
| unimpl_IPersistStream_GetSizeMax |
| }; |
| |
| /* for ClassFactory */ |
| HRESULT WINAPI create_dmgraph(REFIID riid, void **ret_iface) |
| { |
| IDirectMusicGraphImpl* obj; |
| HRESULT hr; |
| |
| *ret_iface = NULL; |
| |
| obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicGraphImpl)); |
| if (!obj) |
| return E_OUTOFMEMORY; |
| |
| obj->IDirectMusicGraph_iface.lpVtbl = &DirectMusicGraphVtbl; |
| obj->ref = 1; |
| dmobject_init(&obj->dmobj, &CLSID_DirectMusicGraph, (IUnknown *)&obj->IDirectMusicGraph_iface); |
| obj->dmobj.IDirectMusicObject_iface.lpVtbl = &dmobject_vtbl; |
| obj->dmobj.IPersistStream_iface.lpVtbl = &persiststream_vtbl; |
| list_init(&obj->Tools); |
| |
| hr = IDirectMusicGraph_QueryInterface(&obj->IDirectMusicGraph_iface, riid, ret_iface); |
| IDirectMusicGraph_Release(&obj->IDirectMusicGraph_iface); |
| |
| return hr; |
| } |
