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 ICOM_VTABLE(IUnknown) DirectMusicChordMap_Unknown_Vtbl = {
  72     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
  73         IDirectMusicChordMapImpl_IUnknown_QueryInterface,
  74         IDirectMusicChordMapImpl_IUnknown_AddRef,
  75         IDirectMusicChordMapImpl_IUnknown_Release
  76 };
  77
  78 /* IDirectMusicChordMapImpl IDirectMusicChordMap part: */
  79 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_QueryInterface (LPDIRECTMUSICCHORDMAP iface, REFIID riid, LPVOID *ppobj) {
  80         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ChordMapVtbl, iface);
  81         return IDirectMusicChordMapImpl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
  82 }
  83
  84 ULONG WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_AddRef (LPDIRECTMUSICCHORDMAP iface) {
  85         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ChordMapVtbl, iface);
  86         return IDirectMusicChordMapImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
  87 }
  88
  89 ULONG WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_Release (LPDIRECTMUSICCHORDMAP iface) {
  90         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ChordMapVtbl, iface);
  91         return IDirectMusicChordMapImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
  92 }
  93
  94 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_GetScale (LPDIRECTMUSICCHORDMAP iface, DWORD* pdwScale) {
  95         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ChordMapVtbl, iface);
  96         FIXME("(%p, %p): stub\n", This, pdwScale);
  97         return S_OK;
  98 }
  99
 100 ICOM_VTABLE(IDirectMusicChordMap) DirectMusicChordMap_ChordMap_Vtbl = {
 101     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 102         IDirectMusicChordMapImpl_IDirectMusicChordMap_QueryInterface,
 103         IDirectMusicChordMapImpl_IDirectMusicChordMap_AddRef,
 104         IDirectMusicChordMapImpl_IDirectMusicChordMap_Release,
 105         IDirectMusicChordMapImpl_IDirectMusicChordMap_GetScale
 106 };
 107
 108 /* IDirectMusicChordMapImpl IDirectMusicObject part: */
 109 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_QueryInterface (LPDIRECTMUSICOBJECT iface, REFIID riid, LPVOID *ppobj) {
 110         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
 111         return IDirectMusicChordMapImpl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
 112 }
 113
 114 ULONG WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface) {
 115         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
 116         return IDirectMusicChordMapImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
 117 }
 118
 119 ULONG WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface) {
 120         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
 121         return IDirectMusicChordMapImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
 122 }
 123
 124 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_GetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
 125         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
 126         TRACE("(%p, %p)\n", This, pDesc);
 127         /* I think we shouldn't return pointer here since then values can be changed; it'd be a mess */
 128         memcpy (pDesc, This->pDesc, This->pDesc->dwSize);
 129         return S_OK;
 130 }
 131
 132 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_SetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
 133         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, ObjectVtbl, iface);
 134         TRACE("(%p, %p): setting descriptor:\n%s\n", This, pDesc, debugstr_DMUS_OBJECTDESC (pDesc));
 135
 136         /* According to MSDN, we should copy only given values, not whole struct */
 137         if (pDesc->dwValidData & DMUS_OBJ_OBJECT)
 138                 memcpy (&This->pDesc->guidObject, &pDesc->guidObject, sizeof (pDesc->guidObject));
 139         if (pDesc->dwValidData & DMUS_OBJ_CLASS)
 140                 memcpy (&This->pDesc->guidClass, &pDesc->guidClass, sizeof (pDesc->guidClass));
 141         if (pDesc->dwValidData & DMUS_OBJ_NAME)
 142                 strncpyW (This->pDesc->wszName, pDesc->wszName, DMUS_MAX_NAME);
 143         if (pDesc->dwValidData & DMUS_OBJ_CATEGORY)
 144                 strncpyW (This->pDesc->wszCategory, pDesc->wszCategory, DMUS_MAX_CATEGORY);
 145         if (pDesc->dwValidData & DMUS_OBJ_FILENAME)
 146                 strncpyW (This->pDesc->wszFileName, pDesc->wszFileName, DMUS_MAX_FILENAME);
 147         if (pDesc->dwValidData & DMUS_OBJ_VERSION)
 148                 memcpy (&This->pDesc->vVersion, &pDesc->vVersion, sizeof (pDesc->vVersion));
 149         if (pDesc->dwValidData & DMUS_OBJ_DATE)
 150                 memcpy (&This->pDesc->ftDate, &pDesc->ftDate, sizeof (pDesc->ftDate));
 151         if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
 152                 memcpy (&This->pDesc->llMemLength, &pDesc->llMemLength, sizeof (pDesc->llMemLength));
 153                 memcpy (This->pDesc->pbMemData, pDesc->pbMemData, sizeof (pDesc->pbMemData));
 154         }
 155         if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
 156                 /* according to MSDN, we copy the stream */
 157                 IStream_Clone (pDesc->pStream, &This->pDesc->pStream);
 158         }
 159
 160         /* add new flags */
 161         This->pDesc->dwValidData |= pDesc->dwValidData;
 162
 163         return S_OK;
 164 }
 165
 166 HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_ParseDescriptor (LPDIRECTMUSICOBJECT iface, LPSTREAM pStream, LPDMUS_OBJECTDESC pDesc) {
 167         DMUS_PRIVATE_CHUNK Chunk;
 168         DWORD StreamSize, StreamCount, ListSize[1], ListCount[1];
 169         LARGE_INTEGER liMove; /* used when skipping chunks */
 170
 171         TRACE("(%p, %p)\n", pStream, pDesc);
 172
 173         /* FIXME: should this be determined from stream? */
 174         pDesc->dwValidData |= DMUS_OBJ_CLASS;
 175         memcpy (&pDesc->guidClass, &CLSID_DirectMusicChordMap, sizeof(CLSID));
 176
 177         IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 178         TRACE_(dmfile)(": %s chunk (size = 0x%04lx)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 179         switch (Chunk.fccID) {
 180                 case FOURCC_RIFF: {
 181                         IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);
 182                         TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
 183                         StreamSize = Chunk.dwSize - sizeof(FOURCC);
 184                         StreamCount = 0;
 185                         if (Chunk.fccID == DMUS_FOURCC_CHORDMAP_FORM) {
 186                                 TRACE_(dmfile)(": chord map form\n");
 187                                 do {
 188                                         IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 189                                         StreamCount += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
 190                                         TRACE_(dmfile)(": %s chunk (size = 0x%04lx)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 191                                         switch (Chunk.fccID) {
 192                                                 case DMUS_FOURCC_GUID_CHUNK: {
 193                                                         TRACE_(dmfile)(": GUID chunk\n");
 194                                                         pDesc->dwValidData |= DMUS_OBJ_OBJECT;
 195                                                         IStream_Read (pStream, &pDesc->guidObject, Chunk.dwSize, NULL);
 196                                                         break;
 197                                                 }
 198                                                 case DMUS_FOURCC_VERSION_CHUNK: {
 199                                                         TRACE_(dmfile)(": version chunk\n");
 200                                                         pDesc->dwValidData |= DMUS_OBJ_VERSION;
 201                                                         IStream_Read (pStream, &pDesc->vVersion, Chunk.dwSize, NULL);
 202                                                         break;
 203                                                 }
 204                                                 case DMUS_FOURCC_CATEGORY_CHUNK: {
 205                                                         TRACE_(dmfile)(": category chunk\n");
 206                                                         pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
 207                                                         IStream_Read (pStream, pDesc->wszCategory, Chunk.dwSize, NULL);
 208                                                         break;
 209                                                 }
 210                                                 case FOURCC_LIST: {
 211                                                         IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);
 212                                                         TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
 213                                                         ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
 214                                                         ListCount[0] = 0;
 215                                                         switch (Chunk.fccID) {
 216                                                                 /* evil M$ UNFO list, which can (!?) contain INFO elements */
 217                                                                 case DMUS_FOURCC_UNFO_LIST: {
 218                                                                         TRACE_(dmfile)(": UNFO list\n");
 219                                                                         do {
 220                                                                                 IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 221                                                                                 ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
 222                                                                                 TRACE_(dmfile)(": %s chunk (size = 0x%04lx)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 223                                                                                 switch (Chunk.fccID) {
 224                                                                                         /* don't ask me why, but M$ puts INFO elements in UNFO list sometimes
 225                                              (though strings seem to be valid unicode) */
 226                                                                                         case mmioFOURCC('I','N','A','M'):
 227                                                                                         case DMUS_FOURCC_UNAM_CHUNK: {
 228                                                                                                 TRACE_(dmfile)(": name chunk\n");
 229                                                                                                 pDesc->dwValidData |= DMUS_OBJ_NAME;
 230                                                                                                 IStream_Read (pStream, pDesc->wszName, Chunk.dwSize, NULL);
 231                                                                                                 break;
 232                                                                                         }
 233                                                                                         case mmioFOURCC('I','A','R','T'):
 234                                                                                         case DMUS_FOURCC_UART_CHUNK: {
 235                                                                                                 TRACE_(dmfile)(": artist chunk (ignored)\n");
 236                                                                                                 liMove.QuadPart = Chunk.dwSize;
 237                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
 238                                                                                                 break;
 239                                                                                         }
 240                                                                                         case mmioFOURCC('I','C','O','P'):
 241                                                                                         case DMUS_FOURCC_UCOP_CHUNK: {
 242                                                                                                 TRACE_(dmfile)(": copyright chunk (ignored)\n");
 243                                                                                                 liMove.QuadPart = Chunk.dwSize;
 244                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
 245                                                                                                 break;
 246                                                                                         }
 247                                                                                         case mmioFOURCC('I','S','B','J'):
 248                                                                                         case DMUS_FOURCC_USBJ_CHUNK: {
 249                                                                                                 TRACE_(dmfile)(": subject chunk (ignored)\n");
 250                                                                                                 liMove.QuadPart = Chunk.dwSize;
 251                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
 252                                                                                                 break;
 253                                                                                         }
 254                                                                                         case mmioFOURCC('I','C','M','T'):
 255                                                                                         case DMUS_FOURCC_UCMT_CHUNK: {
 256                                                                                                 TRACE_(dmfile)(": comment chunk (ignored)\n");
 257                                                                                                 liMove.QuadPart = Chunk.dwSize;
 258                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
 259                                                                                                 break;
 260                                                                                         }
 261                                                                                         default: {
 262                                                                                                 TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
 263                                                                                                 liMove.QuadPart = Chunk.dwSize;
 264                                                                                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
 265                                                                                                 break;
 266                                                                                         }
 267                                                                                 }
 268                                                                                 TRACE_(dmfile)(": ListCount[0] = %ld < ListSize[0] = %ld\n", ListCount[0], ListSize[0]);
 269                                                                         } while (ListCount[0] < ListSize[0]);
 270                                                                         break;
 271                                                                 }
 272                                                                 default: {
 273                                                                         TRACE_(dmfile)(": unknown (skipping)\n");
 274                                                                         liMove.QuadPart = Chunk.dwSize - sizeof(FOURCC);
 275                                                                         IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
 276                                                                         break;
 277                                                                 }
 278                                                         }
 279                                                         break;
 280                                                 }
 281                                                 default: {
 282                                                         TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
 283                                                         liMove.QuadPart = Chunk.dwSize;
 284                                                         IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
 285                                                         break;
 286                                                 }
 287                                         }
 288                                         TRACE_(dmfile)(": StreamCount[0] = %ld < StreamSize[0] = %ld\n", StreamCount, StreamSize);
 289                                 } while (StreamCount < StreamSize);
 290                                 break;
 291                         } else {
 292                                 TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
 293                                 liMove.QuadPart = StreamSize;
 294                                 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
 295                                 return E_FAIL;
 296                         }
 297
 298                         TRACE_(dmfile)(": reading finished\n");
 299                         break;
 300                 }
 301                 default: {
 302                         TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
 303                         liMove.QuadPart = Chunk.dwSize;
 304                         IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
 305                         return DMUS_E_INVALIDFILE;
 306                 }
 307         }
 308
 309         TRACE(": returning descriptor:\n%s\n", debugstr_DMUS_OBJECTDESC (pDesc));
 310
 311         return S_OK;
 312 }
 313
 314 ICOM_VTABLE(IDirectMusicObject) DirectMusicChordMap_Object_Vtbl = {
 315     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 316         IDirectMusicChordMapImpl_IDirectMusicObject_QueryInterface,
 317         IDirectMusicChordMapImpl_IDirectMusicObject_AddRef,
 318         IDirectMusicChordMapImpl_IDirectMusicObject_Release,
 319         IDirectMusicChordMapImpl_IDirectMusicObject_GetDescriptor,
 320         IDirectMusicChordMapImpl_IDirectMusicObject_SetDescriptor,
 321         IDirectMusicChordMapImpl_IDirectMusicObject_ParseDescriptor
 322 };
 323
 324
 325 /* IDirectMusicChordMapImpl IPersistStream part: */
 326 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, LPVOID *ppobj) {
 327         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, PersistStreamVtbl, iface);
 328         return IDirectMusicChordMapImpl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
 329 }
 330
 331 ULONG WINAPI IDirectMusicChordMapImpl_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
 332         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, PersistStreamVtbl, iface);
 333         return IDirectMusicChordMapImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
 334 }
 335
 336 ULONG WINAPI IDirectMusicChordMapImpl_IPersistStream_Release (LPPERSISTSTREAM iface) {
 337         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, PersistStreamVtbl, iface);
 338         return IDirectMusicChordMapImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
 339 }
 340
 341 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
 342         return E_NOTIMPL;
 343 }
 344
 345 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_IsDirty (LPPERSISTSTREAM iface) {
 346         return E_NOTIMPL;
 347 }
 348
 349 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm) {
 350         ICOM_THIS_MULTI(IDirectMusicChordMapImpl, PersistStreamVtbl, iface);
 351
 352         FOURCC chunkID;
 353         DWORD chunkSize, StreamSize, StreamCount, ListSize[3], ListCount[3];
 354         LARGE_INTEGER liMove; /* used when skipping chunks */
 355
 356         FIXME("(%p, %p): Loading not implemented yet\n", This, pStm);
 357         IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
 358         IStream_Read (pStm, &chunkSize, sizeof(DWORD), NULL);
 359         TRACE_(dmfile)(": %s chunk (size = %ld)", debugstr_fourcc (chunkID), chunkSize);
 360         switch (chunkID) {
 361                 case FOURCC_RIFF: {
 362                         IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
 363                         TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(chunkID));
 364                         StreamSize = chunkSize - sizeof(FOURCC);
 365                         StreamCount = 0;
 366                         switch (chunkID) {
 367                                 case DMUS_FOURCC_CHORDMAP_FORM: {
 368                                         TRACE_(dmfile)(": chordmap form\n");
 369                                         do {
 370                                                 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
 371                                                 IStream_Read (pStm, &chunkSize, sizeof(FOURCC), NULL);
 372                                                 StreamCount += sizeof(FOURCC) + sizeof(DWORD) + chunkSize;
 373                                                 TRACE_(dmfile)(": %s chunk (size = %ld)", debugstr_fourcc (chunkID), chunkSize);
 374                                                 switch (chunkID) {
 375                                                         case DMUS_FOURCC_GUID_CHUNK: {
 376                                                                 TRACE_(dmfile)(": GUID chunk\n");
 377                                                                 This->pDesc->dwValidData |= DMUS_OBJ_OBJECT;
 378                                                                 IStream_Read (pStm, &This->pDesc->guidObject, chunkSize, NULL);
 379                                                                 break;
 380                                                         }
 381                                                         case DMUS_FOURCC_VERSION_CHUNK: {
 382                                                                 TRACE_(dmfile)(": version chunk\n");
 383                                                                 This->pDesc->dwValidData |= DMUS_OBJ_VERSION;
 384                                                                 IStream_Read (pStm, &This->pDesc->vVersion, chunkSize, NULL);
 385                                                                 break;
 386                                                         }
 387                                                         case DMUS_FOURCC_CATEGORY_CHUNK: {
 388                                                                 TRACE_(dmfile)(": category chunk\n");
 389                                                                 This->pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
 390                                                                 IStream_Read (pStm, This->pDesc->wszCategory, chunkSize, NULL);
 391                                                                 break;
 392                                                         }
 393                                                         case FOURCC_LIST: {
 394                                                                 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
 395                                                                 TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(chunkID));
 396                                                                 ListSize[0] = chunkSize - sizeof(FOURCC);
 397                                                                 ListCount[0] = 0;
 398                                                                 switch (chunkID) {
 399                                                                         case DMUS_FOURCC_UNFO_LIST: {
 400                                                                                 TRACE_(dmfile)(": UNFO list\n");
 401                                                                                 do {
 402                                                                                         IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
 403                                                                                         IStream_Read (pStm, &chunkSize, sizeof(FOURCC), NULL);
 404                                                                                         ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + chunkSize;
 405                                                                                         TRACE_(dmfile)(": %s chunk (size = %ld)", debugstr_fourcc (chunkID), chunkSize);
 406                                                                                         switch (chunkID) {
 407                                                                                                 /* don't ask me why, but M$ puts INFO elements in UNFO list sometimes
 408                                               (though strings seem to be valid unicode) */
 409                                                                                                 case mmioFOURCC('I','N','A','M'):
 410                                                                                                 case DMUS_FOURCC_UNAM_CHUNK: {
 411                                                                                                         TRACE_(dmfile)(": name chunk\n");
 412                                                                                                         This->pDesc->dwValidData |= DMUS_OBJ_NAME;
 413                                                                                                         IStream_Read (pStm, This->pDesc->wszName, chunkSize, NULL);
 414                                                                                                         break;
 415                                                                                                 }
 416                                                                                                 case mmioFOURCC('I','A','R','T'):
 417                                                                                                 case DMUS_FOURCC_UART_CHUNK: {
 418                                                                                                         TRACE_(dmfile)(": artist chunk (ignored)\n");
 419                                                                                                         liMove.QuadPart = chunkSize;
 420                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 421                                                                                                         break;
 422                                                                                                 }
 423                                                                                                 case mmioFOURCC('I','C','O','P'):
 424                                                                                                 case DMUS_FOURCC_UCOP_CHUNK: {
 425                                                                                                         TRACE_(dmfile)(": copyright chunk (ignored)\n");
 426                                                                                                         liMove.QuadPart = chunkSize;
 427                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 428                                                                                                         break;
 429                                                                                                 }
 430                                                                                                 case mmioFOURCC('I','S','B','J'):
 431                                                                                                 case DMUS_FOURCC_USBJ_CHUNK: {
 432                                                                                                         TRACE_(dmfile)(": subject chunk (ignored)\n");
 433                                                                                                         liMove.QuadPart = chunkSize;
 434                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 435                                                                                                         break;
 436                                                                                                 }
 437                                                                                                 case mmioFOURCC('I','C','M','T'):
 438                                                                                                 case DMUS_FOURCC_UCMT_CHUNK: {
 439                                                                                                         TRACE_(dmfile)(": comment chunk (ignored)\n");
 440                                                                                                         liMove.QuadPart = chunkSize;
 441                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 442                                                                                                         break;
 443                                                                                                 }
 444                                                                                                 default: {
 445                                                                                                         TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
 446                                                                                                         liMove.QuadPart = chunkSize;
 447                                                                                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 448                                                                                                         break;
 449                                                                                                 }
 450                                                                                         }
 451                                                                                         TRACE_(dmfile)(": ListCount[0] = %ld < ListSize[0] = %ld\n", ListCount[0], ListSize[0]);
 452                                                                                 } while (ListCount[0] < ListSize[0]);
 453                                                                                 break;
 454                                                                         }
 455                                                                         default: {
 456                                                                                 TRACE_(dmfile)(": unknown (skipping)\n");
 457                                                                                 liMove.QuadPart = chunkSize - sizeof(FOURCC);
 458                                                                                 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 459                                                                                 break;
 460                                                                         }
 461                                                                 }
 462                                                                 break;
 463                                                         }
 464                                                         default: {
 465                                                                 TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
 466                                                                 liMove.QuadPart = chunkSize;
 467                                                                 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 468                                                                 break;
 469                                                         }
 470                                                 }
 471                                                 TRACE_(dmfile)(": StreamCount[0] = %ld < StreamSize[0] = %ld\n", StreamCount, StreamSize);
 472                                         } while (StreamCount < StreamSize);
 473                                         break;
 474                                 }
 475                                 default: {
 476                                         TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
 477                                         liMove.QuadPart = StreamSize;
 478                                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
 479                                         return E_FAIL;
 480                                 }
 481                         }
 482                         TRACE_(dmfile)(": reading finished\n");
 483                         break;
 484                 }
 485                 default: {
 486                         TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
 487                         liMove.QuadPart = chunkSize;
 488                         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
 489                         return E_FAIL;
 490                 }
 491         }
 492
 493         return S_OK;
 494 }
 495
 496 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty) {
 497         return E_NOTIMPL;
 498 }
 499
 500 HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize) {
 501         return E_NOTIMPL;
 502 }
 503
 504 ICOM_VTABLE(IPersistStream) DirectMusicChordMap_PersistStream_Vtbl = {
 505     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 506         IDirectMusicChordMapImpl_IPersistStream_QueryInterface,
 507         IDirectMusicChordMapImpl_IPersistStream_AddRef,
 508         IDirectMusicChordMapImpl_IPersistStream_Release,
 509         IDirectMusicChordMapImpl_IPersistStream_GetClassID,
 510         IDirectMusicChordMapImpl_IPersistStream_IsDirty,
 511         IDirectMusicChordMapImpl_IPersistStream_Load,
 512         IDirectMusicChordMapImpl_IPersistStream_Save,
 513         IDirectMusicChordMapImpl_IPersistStream_GetSizeMax
 514 };
 515
 516 /* for ClassFactory */
 517 HRESULT WINAPI DMUSIC_CreateDirectMusicChordMapImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
 518         IDirectMusicChordMapImpl* obj;
 519
 520         obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicChordMapImpl));
 521         if (NULL == obj) {
 522                 *ppobj = (LPVOID) NULL;
 523                 return E_OUTOFMEMORY;
 524         }
 525         obj->UnknownVtbl = &DirectMusicChordMap_Unknown_Vtbl;
 526         obj->ChordMapVtbl = &DirectMusicChordMap_ChordMap_Vtbl;
 527         obj->ObjectVtbl = &DirectMusicChordMap_Object_Vtbl;
 528         obj->PersistStreamVtbl = &DirectMusicChordMap_PersistStream_Vtbl;
 529         obj->pDesc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DMUS_OBJECTDESC));
 530         DM_STRUCT_INIT(obj->pDesc);
 531         obj->pDesc->dwValidData |= DMUS_OBJ_CLASS;
 532         memcpy (&obj->pDesc->guidClass, &CLSID_DirectMusicChordMap, sizeof (CLSID));
 533         obj->ref = 0; /* will be inited by QueryInterface */
 534
 535         return IDirectMusicChordMapImpl_IUnknown_QueryInterface ((LPUNKNOWN)&obj->UnknownVtbl, lpcGUID, ppobj);
 536 }