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[wine] / dlls / dmcompos / chordmap.c
1 /* IDirectMusicChordMap Implementation
2  *
3  * Copyright (C) 2003-2004 Rok Mandeljc
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  */
19
20 #include "dmcompos_private.h"
21
22 WINE_DEFAULT_DEBUG_CHANNEL(dmcompos);
23 WINE_DECLARE_DEBUG_CHANNEL(dmfile);
24
25 /*****************************************************************************
26  * IDirectMusicChordMapImpl implementation
27  */
28 /* IDirectMusicChordMapImpl IUnknown part: */
29 HRESULT WINAPI IDirectMusicChordMapImpl_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj) {
30         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, UnknownVtbl, iface);
31         TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
32         
33         if (IsEqualIID (riid, &IID_IUnknown)) {
34                 *ppobj = (LPVOID)&This->UnknownVtbl;
35                 IDirectMusicChordMapImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
36                 return S_OK;    
37         } else if (IsEqualIID (riid, &IID_IDirectMusicChordMap)) {
38                 *ppobj = (LPVOID)&This->ChordMapVtbl;
39                 IDirectMusicChordMapImpl_IDirectMusicChordMap_AddRef ((LPDIRECTMUSICCHORDMAP)&This->ChordMapVtbl);
40                 return S_OK;
41         } else if (IsEqualIID (riid, &IID_IDirectMusicObject)) {
42                 *ppobj = (LPVOID)&This->ObjectVtbl;
43                 IDirectMusicChordMapImpl_IDirectMusicObject_AddRef ((LPDIRECTMUSICOBJECT)&This->ObjectVtbl);            
44                 return S_OK;
45         } else if (IsEqualIID (riid, &IID_IPersistStream)) {
46                 *ppobj = (LPVOID)&This->PersistStreamVtbl;
47                 IDirectMusicChordMapImpl_IPersistStream_AddRef ((LPPERSISTSTREAM)&This->PersistStreamVtbl);             
48                 return S_OK;
49         }
50         
51         WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
52         return E_NOINTERFACE;
53 }
54
55 ULONG WINAPI IDirectMusicChordMapImpl_IUnknown_AddRef (LPUNKNOWN iface) {
56         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, UnknownVtbl, iface);
57         TRACE("(%p): AddRef from %ld\n", This, This->ref);
58         return ++(This->ref);
59 }
60
61 ULONG WINAPI IDirectMusicChordMapImpl_IUnknown_Release (LPUNKNOWN iface) {
62         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, UnknownVtbl, iface);
63         ULONG ref = --This->ref;
64         TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
65         if (ref == 0) {
66                 HeapFree(GetProcessHeap(), 0, This);
67         }
68         return ref;
69 }
70
71 IUnknownVtbl DirectMusicChordMap_Unknown_Vtbl = {
72         IDirectMusicChordMapImpl_IUnknown_QueryInterface,
73         IDirectMusicChordMapImpl_IUnknown_AddRef,
74         IDirectMusicChordMapImpl_IUnknown_Release
75 };
76
77 /* IDirectMusicChordMapImpl IDirectMusicChordMap part: */
78 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_QueryInterface (LPDIRECTMUSICCHORDMAP iface, REFIID riid, LPVOID *ppobj) {
79         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ChordMapVtbl, iface);
80         return IDirectMusicChordMapImpl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
81 }
82
83 ULONG WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_AddRef (LPDIRECTMUSICCHORDMAP iface) {
84         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ChordMapVtbl, iface);
85         return IDirectMusicChordMapImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
86 }
87
88 ULONG WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_Release (LPDIRECTMUSICCHORDMAP iface) {
89         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ChordMapVtbl, iface);
90         return IDirectMusicChordMapImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
91 }
92
93 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_GetScale (LPDIRECTMUSICCHORDMAP iface, DWORD* pdwScale) {
94         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ChordMapVtbl, iface);
95         FIXME("(%p, %p): stub\n", This, pdwScale);
96         return S_OK;
97 }
98
99 IDirectMusicChordMapVtbl DirectMusicChordMap_ChordMap_Vtbl = {
100         IDirectMusicChordMapImpl_IDirectMusicChordMap_QueryInterface,
101         IDirectMusicChordMapImpl_IDirectMusicChordMap_AddRef,
102         IDirectMusicChordMapImpl_IDirectMusicChordMap_Release,
103         IDirectMusicChordMapImpl_IDirectMusicChordMap_GetScale
104 };
105
106 /* IDirectMusicChordMapImpl IDirectMusicObject part: */
107 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_QueryInterface (LPDIRECTMUSICOBJECT iface, REFIID riid, LPVOID *ppobj) {
108         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
109         return IDirectMusicChordMapImpl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
110 }
111
112 ULONG WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface) {
113         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
114         return IDirectMusicChordMapImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
115 }
116
117 ULONG WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface) {
118         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
119         return IDirectMusicChordMapImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
120 }
121
122 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_GetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
123         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
124         TRACE("(%p, %p)\n", This, pDesc);
125         /* I think we shouldn't return pointer here since then values can be changed; it'd be a mess */
126         memcpy (pDesc, This->pDesc, This->pDesc->dwSize);
127         return S_OK;
128 }
129
130 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_SetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
131         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
132         TRACE("(%p, %p): setting descriptor:\n%s\n", This, pDesc, debugstr_DMUS_OBJECTDESC (pDesc));
133         
134         /* According to MSDN, we should copy only given values, not whole struct */     
135         if (pDesc->dwValidData & DMUS_OBJ_OBJECT)
136                 memcpy (&This->pDesc->guidObject, &pDesc->guidObject, sizeof (pDesc->guidObject));
137         if (pDesc->dwValidData & DMUS_OBJ_CLASS)
138                 memcpy (&This->pDesc->guidClass, &pDesc->guidClass, sizeof (pDesc->guidClass));         
139         if (pDesc->dwValidData & DMUS_OBJ_NAME)
140                 strncpyW (This->pDesc->wszName, pDesc->wszName, DMUS_MAX_NAME);
141         if (pDesc->dwValidData & DMUS_OBJ_CATEGORY)
142                 strncpyW (This->pDesc->wszCategory, pDesc->wszCategory, DMUS_MAX_CATEGORY);             
143         if (pDesc->dwValidData & DMUS_OBJ_FILENAME)
144                 strncpyW (This->pDesc->wszFileName, pDesc->wszFileName, DMUS_MAX_FILENAME);             
145         if (pDesc->dwValidData & DMUS_OBJ_VERSION)
146                 memcpy (&This->pDesc->vVersion, &pDesc->vVersion, sizeof (pDesc->vVersion));                            
147         if (pDesc->dwValidData & DMUS_OBJ_DATE)
148                 memcpy (&This->pDesc->ftDate, &pDesc->ftDate, sizeof (pDesc->ftDate));                          
149         if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
150                 memcpy (&This->pDesc->llMemLength, &pDesc->llMemLength, sizeof (pDesc->llMemLength));                           
151                 memcpy (This->pDesc->pbMemData, pDesc->pbMemData, sizeof (pDesc->pbMemData));
152         }
153         if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
154                 /* according to MSDN, we copy the stream */
155                 IStream_Clone (pDesc->pStream, &This->pDesc->pStream);  
156         }
157         
158         /* add new flags */
159         This->pDesc->dwValidData |= pDesc->dwValidData;
160
161         return S_OK;
162 }
163
164 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_ParseDescriptor (LPDIRECTMUSICOBJECT iface, LPSTREAM pStream, LPDMUS_OBJECTDESC pDesc) {
165         DMUS_PRIVATE_CHUNK Chunk;
166         DWORD StreamSize, StreamCount, ListSize[1], ListCount[1];
167         LARGE_INTEGER liMove; /* used when skipping chunks */
168
169         TRACE("(%p, %p)\n", pStream, pDesc);
170         
171         /* FIXME: should this be determined from stream? */
172         pDesc->dwValidData |= DMUS_OBJ_CLASS;
173         memcpy (&pDesc->guidClass, &CLSID_DirectMusicChordMap, sizeof(CLSID));
174         
175         IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
176         TRACE_(dmfile)(": %s chunk (size = 0x%04lx)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
177         switch (Chunk.fccID) {  
178                 case FOURCC_RIFF: {
179                         IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);                             
180                         TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
181                         StreamSize = Chunk.dwSize - sizeof(FOURCC);
182                         StreamCount = 0;
183                         if (Chunk.fccID == DMUS_FOURCC_CHORDMAP_FORM) {
184                                 TRACE_(dmfile)(": chord map form\n");
185                                 do {
186                                         IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
187                                         StreamCount += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
188                                         TRACE_(dmfile)(": %s chunk (size = 0x%04lx)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
189                                         switch (Chunk.fccID) {
190                                                 case DMUS_FOURCC_GUID_CHUNK: {
191                                                         TRACE_(dmfile)(": GUID chunk\n");
192                                                         pDesc->dwValidData |= DMUS_OBJ_OBJECT;
193                                                         IStream_Read (pStream, &pDesc->guidObject, Chunk.dwSize, NULL);
194                                                         break;
195                                                 }
196                                                 case DMUS_FOURCC_VERSION_CHUNK: {
197                                                         TRACE_(dmfile)(": version chunk\n");
198                                                         pDesc->dwValidData |= DMUS_OBJ_VERSION;
199                                                         IStream_Read (pStream, &pDesc->vVersion, Chunk.dwSize, NULL);
200                                                         break;
201                                                 }
202                                                 case DMUS_FOURCC_CATEGORY_CHUNK: {
203                                                         TRACE_(dmfile)(": category chunk\n");
204                                                         pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
205                                                         IStream_Read (pStream, pDesc->wszCategory, Chunk.dwSize, NULL);
206                                                         break;
207                                                 }
208                                                 case FOURCC_LIST: {
209                                                         IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);                             
210                                                         TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
211                                                         ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
212                                                         ListCount[0] = 0;
213                                                         switch (Chunk.fccID) {
214                                                                 /* evil M$ UNFO list, which can (!?) contain INFO elements */
215                                                                 case DMUS_FOURCC_UNFO_LIST: {
216                                                                         TRACE_(dmfile)(": UNFO list\n");
217                                                                         do {
218                                                                                 IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
219                                                                                 ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
220                                                                                 TRACE_(dmfile)(": %s chunk (size = 0x%04lx)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
221                                                                                 switch (Chunk.fccID) {
222                                                                                         /* don't ask me why, but M$ puts INFO elements in UNFO list sometimes
223                                              (though strings seem to be valid unicode) */
224                                                                                         case mmioFOURCC('I','N','A','M'):
225                                                                                         case DMUS_FOURCC_UNAM_CHUNK: {
226                                                                                                 TRACE_(dmfile)(": name chunk\n");
227                                                                                                 pDesc->dwValidData |= DMUS_OBJ_NAME;
228                                                                                                 IStream_Read (pStream, pDesc->wszName, Chunk.dwSize, NULL);
229                                                                                                 break;
230                                                                                         }
231                                                                                         case mmioFOURCC('I','A','R','T'):
232                                                                                         case DMUS_FOURCC_UART_CHUNK: {
233                                                                                                 TRACE_(dmfile)(": artist chunk (ignored)\n");
234                                                                                                 liMove.QuadPart = Chunk.dwSize;
235                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
236                                                                                                 break;
237                                                                                         }
238                                                                                         case mmioFOURCC('I','C','O','P'):
239                                                                                         case DMUS_FOURCC_UCOP_CHUNK: {
240                                                                                                 TRACE_(dmfile)(": copyright chunk (ignored)\n");
241                                                                                                 liMove.QuadPart = Chunk.dwSize;
242                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
243                                                                                                 break;
244                                                                                         }
245                                                                                         case mmioFOURCC('I','S','B','J'):
246                                                                                         case DMUS_FOURCC_USBJ_CHUNK: {
247                                                                                                 TRACE_(dmfile)(": subject chunk (ignored)\n");
248                                                                                                 liMove.QuadPart = Chunk.dwSize;
249                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
250                                                                                                 break;
251                                                                                         }
252                                                                                         case mmioFOURCC('I','C','M','T'):
253                                                                                         case DMUS_FOURCC_UCMT_CHUNK: {
254                                                                                                 TRACE_(dmfile)(": comment chunk (ignored)\n");
255                                                                                                 liMove.QuadPart = Chunk.dwSize;
256                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
257                                                                                                 break;
258                                                                                         }
259                                                                                         default: {
260                                                                                                 TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
261                                                                                                 liMove.QuadPart = Chunk.dwSize;
262                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
263                                                                                                 break;                                          
264                                                                                         }
265                                                                                 }
266                                                                                 TRACE_(dmfile)(": ListCount[0] = %ld < ListSize[0] = %ld\n", ListCount[0], ListSize[0]);
267                                                                         } while (ListCount[0] < ListSize[0]);
268                                                                         break;
269                                                                 }
270                                                                 default: {
271                                                                         TRACE_(dmfile)(": unknown (skipping)\n");
272                                                                         liMove.QuadPart = Chunk.dwSize - sizeof(FOURCC);
273                                                                         IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
274                                                                         break;                                          
275                                                                 }
276                                                         }
277                                                         break;
278                                                 }       
279                                                 default: {
280                                                         TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
281                                                         liMove.QuadPart = Chunk.dwSize;
282                                                         IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
283                                                         break;                                          
284                                                 }
285                                         }
286                                         TRACE_(dmfile)(": StreamCount[0] = %ld < StreamSize[0] = %ld\n", StreamCount, StreamSize);
287                                 } while (StreamCount < StreamSize);
288                                 break;
289                         } else {
290                                 TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
291                                 liMove.QuadPart = StreamSize;
292                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
293                                 return E_FAIL;
294                         }
295                 
296                         TRACE_(dmfile)(": reading finished\n");
297                         break;
298                 }
299                 default: {
300                         TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
301                         liMove.QuadPart = Chunk.dwSize;
302                         IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
303                         return DMUS_E_INVALIDFILE;
304                 }
305         }       
306         
307         TRACE(": returning descriptor:\n%s\n", debugstr_DMUS_OBJECTDESC (pDesc));
308         
309         return S_OK;
310 }
311
312 IDirectMusicObjectVtbl DirectMusicChordMap_Object_Vtbl = {
313         IDirectMusicChordMapImpl_IDirectMusicObject_QueryInterface,
314         IDirectMusicChordMapImpl_IDirectMusicObject_AddRef,
315         IDirectMusicChordMapImpl_IDirectMusicObject_Release,
316         IDirectMusicChordMapImpl_IDirectMusicObject_GetDescriptor,
317         IDirectMusicChordMapImpl_IDirectMusicObject_SetDescriptor,
318         IDirectMusicChordMapImpl_IDirectMusicObject_ParseDescriptor
319 };
320
321         
322 /* IDirectMusicChordMapImpl IPersistStream part: */
323 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, LPVOID *ppobj) {
324         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, PersistStreamVtbl, iface);
325         return IDirectMusicChordMapImpl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
326 }
327
328 ULONG WINAPI IDirectMusicChordMapImpl_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
329         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, PersistStreamVtbl, iface);
330         return IDirectMusicChordMapImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
331 }
332
333 ULONG WINAPI IDirectMusicChordMapImpl_IPersistStream_Release (LPPERSISTSTREAM iface) {
334         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, PersistStreamVtbl, iface);
335         return IDirectMusicChordMapImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
336 }
337
338 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
339         return E_NOTIMPL;
340 }
341
342 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_IsDirty (LPPERSISTSTREAM iface) {
343         return E_NOTIMPL;
344 }
345
346 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm) {
347         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, PersistStreamVtbl, iface);
348
349         FOURCC chunkID;
350         DWORD chunkSize, StreamSize, StreamCount, ListSize[3], ListCount[3];
351         LARGE_INTEGER liMove; /* used when skipping chunks */
352
353         FIXME("(%p, %p): Loading not implemented yet\n", This, pStm);
354         IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
355         IStream_Read (pStm, &chunkSize, sizeof(DWORD), NULL);
356         TRACE_(dmfile)(": %s chunk (size = %ld)", debugstr_fourcc (chunkID), chunkSize);
357         switch (chunkID) {      
358                 case FOURCC_RIFF: {
359                         IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);                            
360                         TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(chunkID));
361                         StreamSize = chunkSize - sizeof(FOURCC);
362                         StreamCount = 0;
363                         switch (chunkID) {
364                                 case DMUS_FOURCC_CHORDMAP_FORM: {
365                                         TRACE_(dmfile)(": chordmap form\n");
366                                         do {
367                                                 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
368                                                 IStream_Read (pStm, &chunkSize, sizeof(FOURCC), NULL);
369                                                 StreamCount += sizeof(FOURCC) + sizeof(DWORD) + chunkSize;
370                                                 TRACE_(dmfile)(": %s chunk (size = %ld)", debugstr_fourcc (chunkID), chunkSize);
371                                                 switch (chunkID) {
372                                                         case DMUS_FOURCC_GUID_CHUNK: {
373                                                                 TRACE_(dmfile)(": GUID chunk\n");
374                                                                 This->pDesc->dwValidData |= DMUS_OBJ_OBJECT;
375                                                                 IStream_Read (pStm, &This->pDesc->guidObject, chunkSize, NULL);
376                                                                 break;
377                                                         }
378                                                         case DMUS_FOURCC_VERSION_CHUNK: {
379                                                                 TRACE_(dmfile)(": version chunk\n");
380                                                                 This->pDesc->dwValidData |= DMUS_OBJ_VERSION;
381                                                                 IStream_Read (pStm, &This->pDesc->vVersion, chunkSize, NULL);
382                                                                 break;
383                                                         }
384                                                         case DMUS_FOURCC_CATEGORY_CHUNK: {
385                                                                 TRACE_(dmfile)(": category chunk\n");
386                                                                 This->pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
387                                                                 IStream_Read (pStm, This->pDesc->wszCategory, chunkSize, NULL);
388                                                                 break;
389                                                         }
390                                                         case FOURCC_LIST: {
391                                                                 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);                            
392                                                                 TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(chunkID));
393                                                                 ListSize[0] = chunkSize - sizeof(FOURCC);
394                                                                 ListCount[0] = 0;
395                                                                 switch (chunkID) {
396                                                                         case DMUS_FOURCC_UNFO_LIST: {
397                                                                                 TRACE_(dmfile)(": UNFO list\n");
398                                                                                 do {
399                                                                                         IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
400                                                                                         IStream_Read (pStm, &chunkSize, sizeof(FOURCC), NULL);
401                                                                                         ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + chunkSize;
402                                                                                         TRACE_(dmfile)(": %s chunk (size = %ld)", debugstr_fourcc (chunkID), chunkSize);
403                                                                                         switch (chunkID) {
404                                                                                                 /* don't ask me why, but M$ puts INFO elements in UNFO list sometimes
405                                               (though strings seem to be valid unicode) */
406                                                                                                 case mmioFOURCC('I','N','A','M'):
407                                                                                                 case DMUS_FOURCC_UNAM_CHUNK: {
408                                                                                                         TRACE_(dmfile)(": name chunk\n");
409                                                                                                         This->pDesc->dwValidData |= DMUS_OBJ_NAME;
410                                                                                                         IStream_Read (pStm, This->pDesc->wszName, chunkSize, NULL);
411                                                                                                         break;
412                                                                                                 }
413                                                                                                 case mmioFOURCC('I','A','R','T'):
414                                                                                                 case DMUS_FOURCC_UART_CHUNK: {
415                                                                                                         TRACE_(dmfile)(": artist chunk (ignored)\n");
416                                                                                                         liMove.QuadPart = chunkSize;
417                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
418                                                                                                         break;
419                                                                                                 }
420                                                                                                 case mmioFOURCC('I','C','O','P'):
421                                                                                                 case DMUS_FOURCC_UCOP_CHUNK: {
422                                                                                                         TRACE_(dmfile)(": copyright chunk (ignored)\n");
423                                                                                                         liMove.QuadPart = chunkSize;
424                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
425                                                                                                         break;
426                                                                                                 }
427                                                                                                 case mmioFOURCC('I','S','B','J'):
428                                                                                                 case DMUS_FOURCC_USBJ_CHUNK: {
429                                                                                                         TRACE_(dmfile)(": subject chunk (ignored)\n");
430                                                                                                         liMove.QuadPart = chunkSize;
431                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
432                                                                                                         break;
433                                                                                                 }
434                                                                                                 case mmioFOURCC('I','C','M','T'):
435                                                                                                 case DMUS_FOURCC_UCMT_CHUNK: {
436                                                                                                         TRACE_(dmfile)(": comment chunk (ignored)\n");
437                                                                                                         liMove.QuadPart = chunkSize;
438                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
439                                                                                                         break;
440                                                                                                 }
441                                                                                                 default: {
442                                                                                                         TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
443                                                                                                         liMove.QuadPart = chunkSize;
444                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
445                                                                                                         break;                                          
446                                                                                                 }
447                                                                                         }
448                                                                                         TRACE_(dmfile)(": ListCount[0] = %ld < ListSize[0] = %ld\n", ListCount[0], ListSize[0]);
449                                                                                 } while (ListCount[0] < ListSize[0]);
450                                                                                 break;
451                                                                         }
452                                                                         default: {
453                                                                                 TRACE_(dmfile)(": unknown (skipping)\n");
454                                                                                 liMove.QuadPart = chunkSize - sizeof(FOURCC);
455                                                                                 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
456                                                                                 break;                                          
457                                                                         }
458                                                                 }
459                                                                 break;
460                                                         }       
461                                                         default: {
462                                                                 TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
463                                                                 liMove.QuadPart = chunkSize;
464                                                                 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
465                                                                 break;                                          
466                                                         }
467                                                 }
468                                                 TRACE_(dmfile)(": StreamCount[0] = %ld < StreamSize[0] = %ld\n", StreamCount, StreamSize);
469                                         } while (StreamCount < StreamSize);
470                                         break;
471                                 }
472                                 default: {
473                                         TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
474                                         liMove.QuadPart = StreamSize;
475                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
476                                         return E_FAIL;
477                                 }
478                         }
479                         TRACE_(dmfile)(": reading finished\n");
480                         break;
481                 }
482                 default: {
483                         TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
484                         liMove.QuadPart = chunkSize;
485                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
486                         return E_FAIL;
487                 }
488         }
489
490         return S_OK;
491 }
492
493 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty) {
494         return E_NOTIMPL;
495 }
496
497 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize) {
498         return E_NOTIMPL;
499 }
500
501 IPersistStreamVtbl DirectMusicChordMap_PersistStream_Vtbl = {
502         IDirectMusicChordMapImpl_IPersistStream_QueryInterface,
503         IDirectMusicChordMapImpl_IPersistStream_AddRef,
504         IDirectMusicChordMapImpl_IPersistStream_Release,
505         IDirectMusicChordMapImpl_IPersistStream_GetClassID,
506         IDirectMusicChordMapImpl_IPersistStream_IsDirty,
507         IDirectMusicChordMapImpl_IPersistStream_Load,
508         IDirectMusicChordMapImpl_IPersistStream_Save,
509         IDirectMusicChordMapImpl_IPersistStream_GetSizeMax
510 };
511
512 /* for ClassFactory */
513 HRESULT WINAPI DMUSIC_CreateDirectMusicChordMapImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
514         IDirectMusicChordMapImpl* obj;
515         
516         obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicChordMapImpl));
517         if (NULL == obj) {
518                 *ppobj = (LPVOID) NULL;
519                 return E_OUTOFMEMORY;
520         }
521         obj->UnknownVtbl = &DirectMusicChordMap_Unknown_Vtbl;
522         obj->ChordMapVtbl = &DirectMusicChordMap_ChordMap_Vtbl;
523         obj->ObjectVtbl = &DirectMusicChordMap_Object_Vtbl;
524         obj->PersistStreamVtbl = &DirectMusicChordMap_PersistStream_Vtbl;
525         obj->pDesc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DMUS_OBJECTDESC));
526         DM_STRUCT_INIT(obj->pDesc);
527         obj->pDesc->dwValidData |= DMUS_OBJ_CLASS;
528         memcpy (&obj->pDesc->guidClass, &CLSID_DirectMusicChordMap, sizeof (CLSID));
529         obj->ref = 0; /* will be inited by QueryInterface */
530         
531         return IDirectMusicChordMapImpl_IUnknown_QueryInterface ((LPUNKNOWN)&obj->UnknownVtbl, lpcGUID, ppobj);
532 }