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shell32: DragQueryFile doesn't count the null terminator.
[wine/multimedia.git] / dlls / dmime / graph.c
blob0e6fef975230ee5556f7fe0fe076fd2003a61bc2
1 /* IDirectMusicGraph
2 *
3 * Copyright (C) 2003-2004 Rok Mandeljc
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (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 GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
18 */
19
20 #include "dmime_private.h"
21
22 WINE_DEFAULT_DEBUG_CHANNEL(dmime);
23 WINE_DECLARE_DEBUG_CHANNEL(dmfile);
24
25 /*****************************************************************************
26 * IDirectMusicGraphImpl implementation
27 */
28 /* IDirectMusicGraphImpl IUnknown part: */
29 static HRESULT WINAPI IDirectMusicGraphImpl_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj) {
30 ICOM_THIS_MULTI(IDirectMusicGraphImpl, UnknownVtbl, iface);
31 TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
32
33 if (IsEqualIID (riid, &IID_IUnknown)) {
34 *ppobj = (LPVOID)&This->UnknownVtbl;
35 IUnknown_AddRef (iface);
36 return S_OK;
37 } else if (IsEqualIID (riid, &IID_IDirectMusicGraph)) {
38 *ppobj = (LPVOID)&This->GraphVtbl;
39 IUnknown_AddRef (iface);
40 return S_OK;
41 } else if (IsEqualIID (riid, &IID_IDirectMusicObject)) {
42 *ppobj = (LPVOID)&This->ObjectVtbl;
43 IUnknown_AddRef (iface);
44 return S_OK;
45 } else if (IsEqualIID (riid, &IID_IPersistStream)) {
46 *ppobj = (LPVOID)&This->PersistStreamVtbl;
47 IUnknown_AddRef (iface);
48 return S_OK;
49 }
50
51 WARN("(%p, %s, %p): not found\n", This, debugstr_guid(riid), ppobj);
52 return E_NOINTERFACE;
53 }
54
55 static ULONG WINAPI IDirectMusicGraphImpl_IUnknown_AddRef (LPUNKNOWN iface) {
56 ICOM_THIS_MULTI(IDirectMusicGraphImpl, UnknownVtbl, iface);
57 ULONG ref = InterlockedIncrement(&This->ref);
58
59 TRACE("(%p): AddRef from %d\n", This, ref - 1);
60
61 DMIME_LockModule();
62
63 return ref;
64 }
65
66 static ULONG WINAPI IDirectMusicGraphImpl_IUnknown_Release (LPUNKNOWN iface) {
67 ICOM_THIS_MULTI(IDirectMusicGraphImpl, UnknownVtbl, iface);
68 ULONG ref = InterlockedDecrement(&This->ref);
69 TRACE("(%p): ReleaseRef to %d\n", This, ref);
70
71 if (ref == 0) {
72 HeapFree(GetProcessHeap(), 0, This);
73 }
74
75 DMIME_UnlockModule();
76
77 return ref;
78 }
79
80 static const IUnknownVtbl DirectMusicGraph_Unknown_Vtbl = {
81 IDirectMusicGraphImpl_IUnknown_QueryInterface,
82 IDirectMusicGraphImpl_IUnknown_AddRef,
83 IDirectMusicGraphImpl_IUnknown_Release
84 };
85
86 /* IDirectMusicGraphImpl IDirectMusicGraph part: */
87 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicGraph_QueryInterface (LPDIRECTMUSICGRAPH iface, REFIID riid, LPVOID *ppobj) {
88 ICOM_THIS_MULTI(IDirectMusicGraphImpl, GraphVtbl, iface);
89 return IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
90 }
91
92 static ULONG WINAPI IDirectMusicGraphImpl_IDirectMusicGraph_AddRef (LPDIRECTMUSICGRAPH iface) {
93 ICOM_THIS_MULTI(IDirectMusicGraphImpl, GraphVtbl, iface);
94 return IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
95 }
96
97 static ULONG WINAPI IDirectMusicGraphImpl_IDirectMusicGraph_Release (LPDIRECTMUSICGRAPH iface) {
98 ICOM_THIS_MULTI(IDirectMusicGraphImpl, GraphVtbl, iface);
99 return IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
100 }
101
102 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicGraph_StampPMsg (LPDIRECTMUSICGRAPH iface, DMUS_PMSG* pPMSG) {
103 ICOM_THIS_MULTI(IDirectMusicGraphImpl, GraphVtbl, iface);
104 FIXME("(%p, %p): stub\n", This, pPMSG);
105 return S_OK;
106 }
107
108 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicGraph_InsertTool (LPDIRECTMUSICGRAPH iface, IDirectMusicTool* pTool, DWORD* pdwPChannels, DWORD cPChannels, LONG lIndex) {
109 ICOM_THIS_MULTI(IDirectMusicGraphImpl, GraphVtbl, iface);
110
111 HRESULT hr;
112 struct list* pEntry = NULL;
113 struct list* pPrevEntry = NULL;
114 LPDMUS_PRIVATE_GRAPH_TOOL pIt = NULL;
115 LPDMUS_PRIVATE_GRAPH_TOOL pNewTool = NULL;
116
117
118 FIXME("(%p, %p, %p, %d, %i): use of pdwPChannels\n", This, pTool, pdwPChannels, cPChannels, lIndex);
119
120 if (NULL == pTool) {
121 return E_POINTER;
122 }
123
124 if (0 > lIndex) {
125 lIndex = This->num_tools + lIndex;
126 }
127
128 pPrevEntry = &This->Tools;
129 LIST_FOR_EACH (pEntry, &This->Tools) {
130 pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_GRAPH_TOOL, entry);
131 if (pIt->dwIndex == lIndex) {
132 return DMUS_E_ALREADY_EXISTS;
133 }
134 if (pIt->dwIndex > lIndex) {
135 break ;
136 }
137 pPrevEntry = pEntry;
138 }
139
140 ++This->num_tools;
141 pNewTool = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_GRAPH_TOOL));
142 pNewTool->pTool = pTool;
143 pNewTool->dwIndex = lIndex;
144 IDirectMusicTool8_AddRef(pTool);
145 hr = IDirectMusicTool8_Init(pTool, iface);
146 list_add_tail (pPrevEntry->next, &pNewTool->entry);
147
148 #if 0
149 DWORD dwNum = 0;
150 hr = IDirectMusicTool8_GetMediaTypes(pTool, &dwNum);
151 #endif
152
153 return DS_OK;
154 }
155
156 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicGraph_GetTool (LPDIRECTMUSICGRAPH iface, DWORD dwIndex, IDirectMusicTool** ppTool) {
157 ICOM_THIS_MULTI(IDirectMusicGraphImpl, GraphVtbl, iface);
158 struct list* pEntry = NULL;
159 LPDMUS_PRIVATE_GRAPH_TOOL pIt = NULL;
160
161 FIXME("(%p, %d, %p): stub\n", This, dwIndex, ppTool);
162
163 LIST_FOR_EACH (pEntry, &This->Tools) {
164 pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_GRAPH_TOOL, entry);
165 if (pIt->dwIndex == dwIndex) {
166 *ppTool = pIt->pTool;
167 if (NULL != *ppTool) {
168 IDirectMusicTool8_AddRef((LPDIRECTMUSICTOOL8) *ppTool);
169 }
170 return S_OK;
171 }
172 if (pIt->dwIndex > dwIndex) {
173 break ;
174 }
175 }
176
177 return DMUS_E_NOT_FOUND;
178 }
179
180 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicGraph_RemoveTool (LPDIRECTMUSICGRAPH iface, IDirectMusicTool* pTool) {
181 ICOM_THIS_MULTI(IDirectMusicGraphImpl, GraphVtbl, iface);
182 FIXME("(%p, %p): stub\n", This, pTool);
183 return S_OK;
184 }
185
186 static const IDirectMusicGraphVtbl DirectMusicGraph_Graph_Vtbl = {
187 IDirectMusicGraphImpl_IDirectMusicGraph_QueryInterface,
188 IDirectMusicGraphImpl_IDirectMusicGraph_AddRef,
189 IDirectMusicGraphImpl_IDirectMusicGraph_Release,
190 IDirectMusicGraphImpl_IDirectMusicGraph_StampPMsg,
191 IDirectMusicGraphImpl_IDirectMusicGraph_InsertTool,
192 IDirectMusicGraphImpl_IDirectMusicGraph_GetTool,
193 IDirectMusicGraphImpl_IDirectMusicGraph_RemoveTool
194 };
195
196
197 /* IDirectMusicGraphImpl IDirectMusicObject part: */
198 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicObject_QueryInterface (LPDIRECTMUSICOBJECT iface, REFIID riid, LPVOID *ppobj) {
199 ICOM_THIS_MULTI(IDirectMusicGraphImpl, ObjectVtbl, iface);
200 return IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
201 }
202
203 static ULONG WINAPI IDirectMusicGraphImpl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface) {
204 ICOM_THIS_MULTI(IDirectMusicGraphImpl, ObjectVtbl, iface);
205 return IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
206 }
207
208 static ULONG WINAPI IDirectMusicGraphImpl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface) {
209 ICOM_THIS_MULTI(IDirectMusicGraphImpl, ObjectVtbl, iface);
210 return IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
211 }
212
213 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicObject_GetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
214 ICOM_THIS_MULTI(IDirectMusicGraphImpl, ObjectVtbl, iface);
215 TRACE("(%p, %p)\n", This, pDesc);
216 /* I think we shouldn't return pointer here since then values can be changed; it'd be a mess */
217 memcpy (pDesc, This->pDesc, This->pDesc->dwSize);
218 return S_OK;
219 }
220
221 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicObject_SetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
222 ICOM_THIS_MULTI(IDirectMusicGraphImpl, ObjectVtbl, iface);
223 TRACE("(%p, %p): setting descriptor:\n%s\n", This, pDesc, debugstr_DMUS_OBJECTDESC (pDesc));
224
225 /* According to MSDN, we should copy only given values, not whole struct */
226 if (pDesc->dwValidData & DMUS_OBJ_OBJECT)
227 memcpy (&This->pDesc->guidObject, &pDesc->guidObject, sizeof (pDesc->guidObject));
228 if (pDesc->dwValidData & DMUS_OBJ_CLASS)
229 memcpy (&This->pDesc->guidClass, &pDesc->guidClass, sizeof (pDesc->guidClass));
230 if (pDesc->dwValidData & DMUS_OBJ_NAME)
231 lstrcpynW (This->pDesc->wszName, pDesc->wszName, DMUS_MAX_NAME);
232 if (pDesc->dwValidData & DMUS_OBJ_CATEGORY)
233 lstrcpynW (This->pDesc->wszCategory, pDesc->wszCategory, DMUS_MAX_CATEGORY);
234 if (pDesc->dwValidData & DMUS_OBJ_FILENAME)
235 lstrcpynW (This->pDesc->wszFileName, pDesc->wszFileName, DMUS_MAX_FILENAME);
236 if (pDesc->dwValidData & DMUS_OBJ_VERSION)
237 memcpy (&This->pDesc->vVersion, &pDesc->vVersion, sizeof (pDesc->vVersion));
238 if (pDesc->dwValidData & DMUS_OBJ_DATE)
239 memcpy (&This->pDesc->ftDate, &pDesc->ftDate, sizeof (pDesc->ftDate));
240 if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
241 memcpy (&This->pDesc->llMemLength, &pDesc->llMemLength, sizeof (pDesc->llMemLength));
242 memcpy (This->pDesc->pbMemData, pDesc->pbMemData, sizeof (pDesc->pbMemData));
243 }
244 if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
245 /* according to MSDN, we copy the stream */
246 IStream_Clone (pDesc->pStream, &This->pDesc->pStream);
247 }
248
249 /* add new flags */
250 This->pDesc->dwValidData |= pDesc->dwValidData;
251
252 return S_OK;
253 }
254
255 static HRESULT WINAPI IDirectMusicGraphImpl_IDirectMusicObject_ParseDescriptor (LPDIRECTMUSICOBJECT iface, LPSTREAM pStream, LPDMUS_OBJECTDESC pDesc) {
256 ICOM_THIS_MULTI(IDirectMusicGraphImpl, ObjectVtbl, iface);
257 DMUS_PRIVATE_CHUNK Chunk;
258 DWORD StreamSize, StreamCount, ListSize[1], ListCount[1];
259 LARGE_INTEGER liMove; /* used when skipping chunks */
260
261 TRACE("(%p, %p, %p)\n", This, pStream, pDesc);
262
263 /* FIXME: should this be determined from stream? */
264 pDesc->dwValidData |= DMUS_OBJ_CLASS;
265 memcpy (&pDesc->guidClass, &CLSID_DirectMusicGraph, sizeof(CLSID));
266
267 IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
268 TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
269 switch (Chunk.fccID) {
270 case FOURCC_RIFF: {
271 IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);
272 TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
273 StreamSize = Chunk.dwSize - sizeof(FOURCC);
274 StreamCount = 0;
275 if (Chunk.fccID == DMUS_FOURCC_TOOLGRAPH_FORM) {
276 TRACE_(dmfile)(": graph form\n");
277 do {
278 IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
279 StreamCount += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
280 TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
281 switch (Chunk.fccID) {
282 case DMUS_FOURCC_GUID_CHUNK: {
283 TRACE_(dmfile)(": GUID chunk\n");
284 pDesc->dwValidData |= DMUS_OBJ_OBJECT;
285 IStream_Read (pStream, &pDesc->guidObject, Chunk.dwSize, NULL);
286 break;
287 }
288 case DMUS_FOURCC_VERSION_CHUNK: {
289 TRACE_(dmfile)(": version chunk\n");
290 pDesc->dwValidData |= DMUS_OBJ_VERSION;
291 IStream_Read (pStream, &pDesc->vVersion, Chunk.dwSize, NULL);
292 break;
293 }
294 case DMUS_FOURCC_CATEGORY_CHUNK: {
295 TRACE_(dmfile)(": category chunk\n");
296 pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
297 IStream_Read (pStream, pDesc->wszCategory, Chunk.dwSize, NULL);
298 break;
299 }
300 case FOURCC_LIST: {
301 IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);
302 TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
303 ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
304 ListCount[0] = 0;
305 switch (Chunk.fccID) {
306 /* evil M$ UNFO list, which can (!?) contain INFO elements */
307 case DMUS_FOURCC_UNFO_LIST: {
308 TRACE_(dmfile)(": UNFO list\n");
309 do {
310 IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
311 ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
312 TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
313 switch (Chunk.fccID) {
314 /* don't ask me why, but M$ puts INFO elements in UNFO list sometimes
315 (though strings seem to be valid unicode) */
316 case mmioFOURCC('I','N','A','M'):
317 case DMUS_FOURCC_UNAM_CHUNK: {
318 TRACE_(dmfile)(": name chunk\n");
319 pDesc->dwValidData |= DMUS_OBJ_NAME;
320 IStream_Read (pStream, pDesc->wszName, Chunk.dwSize, NULL);
321 break;
322 }
323 case mmioFOURCC('I','A','R','T'):
324 case DMUS_FOURCC_UART_CHUNK: {
325 TRACE_(dmfile)(": artist chunk (ignored)\n");
326 liMove.QuadPart = Chunk.dwSize;
327 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
328 break;
329 }
330 case mmioFOURCC('I','C','O','P'):
331 case DMUS_FOURCC_UCOP_CHUNK: {
332 TRACE_(dmfile)(": copyright chunk (ignored)\n");
333 liMove.QuadPart = Chunk.dwSize;
334 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
335 break;
336 }
337 case mmioFOURCC('I','S','B','J'):
338 case DMUS_FOURCC_USBJ_CHUNK: {
339 TRACE_(dmfile)(": subject chunk (ignored)\n");
340 liMove.QuadPart = Chunk.dwSize;
341 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
342 break;
343 }
344 case mmioFOURCC('I','C','M','T'):
345 case DMUS_FOURCC_UCMT_CHUNK: {
346 TRACE_(dmfile)(": comment chunk (ignored)\n");
347 liMove.QuadPart = Chunk.dwSize;
348 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
349 break;
350 }
351 default: {
352 TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
353 liMove.QuadPart = Chunk.dwSize;
354 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
355 break;
356 }
357 }
358 TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
359 } while (ListCount[0] < ListSize[0]);
360 break;
361 }
362 default: {
363 TRACE_(dmfile)(": unknown (skipping)\n");
364 liMove.QuadPart = Chunk.dwSize - sizeof(FOURCC);
365 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
366 break;
367 }
368 }
369 break;
370 }
371 default: {
372 TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
373 liMove.QuadPart = Chunk.dwSize;
374 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
375 break;
376 }
377 }
378 TRACE_(dmfile)(": StreamCount[0] = %d < StreamSize[0] = %d\n", StreamCount, StreamSize);
379 } while (StreamCount < StreamSize);
380 } else {
381 TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
382 liMove.QuadPart = StreamSize;
383 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
384 return E_FAIL;
385 }
386
387 TRACE_(dmfile)(": reading finished\n");
388 break;
389 }
390 default: {
391 TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
392 liMove.QuadPart = Chunk.dwSize;
393 IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
394 return DMUS_E_INVALIDFILE;
395 }
396 }
397
398 TRACE(": returning descriptor:\n%s\n", debugstr_DMUS_OBJECTDESC (pDesc));
399
400 return S_OK;
401 }
402
403 static const IDirectMusicObjectVtbl DirectMusicGraph_Object_Vtbl = {
404 IDirectMusicGraphImpl_IDirectMusicObject_QueryInterface,
405 IDirectMusicGraphImpl_IDirectMusicObject_AddRef,
406 IDirectMusicGraphImpl_IDirectMusicObject_Release,
407 IDirectMusicGraphImpl_IDirectMusicObject_GetDescriptor,
408 IDirectMusicGraphImpl_IDirectMusicObject_SetDescriptor,
409 IDirectMusicGraphImpl_IDirectMusicObject_ParseDescriptor
410 };
411
412 /* IDirectMusicGraphImpl IPersistStream part: */
413 static HRESULT WINAPI IDirectMusicGraphImpl_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, LPVOID *ppobj) {
414 ICOM_THIS_MULTI(IDirectMusicGraphImpl, PersistStreamVtbl, iface);
415 return IDirectMusicGraphImpl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
416 }
417
418 static ULONG WINAPI IDirectMusicGraphImpl_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
419 ICOM_THIS_MULTI(IDirectMusicGraphImpl, PersistStreamVtbl, iface);
420 return IDirectMusicGraphImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
421 }
422
423 static ULONG WINAPI IDirectMusicGraphImpl_IPersistStream_Release (LPPERSISTSTREAM iface) {
424 ICOM_THIS_MULTI(IDirectMusicGraphImpl, PersistStreamVtbl, iface);
425 return IDirectMusicGraphImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
426 }
427
428 static HRESULT WINAPI IDirectMusicGraphImpl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
429 return E_NOTIMPL;
430 }
431
432 static HRESULT WINAPI IDirectMusicGraphImpl_IPersistStream_IsDirty (LPPERSISTSTREAM iface) {
433 return E_NOTIMPL;
434 }
435
436 static HRESULT WINAPI IDirectMusicGraphImpl_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm) {
437 ICOM_THIS_MULTI(IDirectMusicGraphImpl, PersistStreamVtbl, iface);
438 FOURCC chunkID;
439 DWORD chunkSize, StreamSize, StreamCount, ListSize[3], ListCount[3];
440 LARGE_INTEGER liMove; /* used when skipping chunks */
441
442 FIXME("(%p, %p): Loading not implemented yet\n", This, pStm);
443 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
444 IStream_Read (pStm, &chunkSize, sizeof(DWORD), NULL);
445 TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (chunkID), chunkSize);
446 switch (chunkID) {
447 case FOURCC_RIFF: {
448 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
449 TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(chunkID));
450 StreamSize = chunkSize - sizeof(FOURCC);
451 StreamCount = 0;
452 switch (chunkID) {
453 case DMUS_FOURCC_TOOLGRAPH_FORM: {
454 TRACE_(dmfile)(": graph form\n");
455 do {
456 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
457 IStream_Read (pStm, &chunkSize, sizeof(FOURCC), NULL);
458 StreamCount += sizeof(FOURCC) + sizeof(DWORD) + chunkSize;
459 TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (chunkID), chunkSize);
460 switch (chunkID) {
461 case DMUS_FOURCC_GUID_CHUNK: {
462 TRACE_(dmfile)(": GUID chunk\n");
463 This->pDesc->dwValidData |= DMUS_OBJ_OBJECT;
464 IStream_Read (pStm, &This->pDesc->guidObject, chunkSize, NULL);
465 break;
466 }
467 case DMUS_FOURCC_VERSION_CHUNK: {
468 TRACE_(dmfile)(": version chunk\n");
469 This->pDesc->dwValidData |= DMUS_OBJ_VERSION;
470 IStream_Read (pStm, &This->pDesc->vVersion, chunkSize, NULL);
471 break;
472 }
473 case DMUS_FOURCC_CATEGORY_CHUNK: {
474 TRACE_(dmfile)(": category chunk\n");
475 This->pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
476 IStream_Read (pStm, This->pDesc->wszCategory, chunkSize, NULL);
477 break;
478 }
479 case FOURCC_LIST: {
480 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
481 TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(chunkID));
482 ListSize[0] = chunkSize - sizeof(FOURCC);
483 ListCount[0] = 0;
484 switch (chunkID) {
485 case DMUS_FOURCC_UNFO_LIST: {
486 TRACE_(dmfile)(": UNFO list\n");
487 do {
488 IStream_Read (pStm, &chunkID, sizeof(FOURCC), NULL);
489 IStream_Read (pStm, &chunkSize, sizeof(FOURCC), NULL);
490 ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + chunkSize;
491 TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (chunkID), chunkSize);
492 switch (chunkID) {
493 /* don't ask me why, but M$ puts INFO elements in UNFO list sometimes
494 (though strings seem to be valid unicode) */
495 case mmioFOURCC('I','N','A','M'):
496 case DMUS_FOURCC_UNAM_CHUNK: {
497 TRACE_(dmfile)(": name chunk\n");
498 This->pDesc->dwValidData |= DMUS_OBJ_NAME;
499 IStream_Read (pStm, This->pDesc->wszName, chunkSize, NULL);
500 break;
501 }
502 case mmioFOURCC('I','A','R','T'):
503 case DMUS_FOURCC_UART_CHUNK: {
504 TRACE_(dmfile)(": artist chunk (ignored)\n");
505 liMove.QuadPart = chunkSize;
506 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
507 break;
508 }
509 case mmioFOURCC('I','C','O','P'):
510 case DMUS_FOURCC_UCOP_CHUNK: {
511 TRACE_(dmfile)(": copyright chunk (ignored)\n");
512 liMove.QuadPart = chunkSize;
513 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
514 break;
515 }
516 case mmioFOURCC('I','S','B','J'):
517 case DMUS_FOURCC_USBJ_CHUNK: {
518 TRACE_(dmfile)(": subject chunk (ignored)\n");
519 liMove.QuadPart = chunkSize;
520 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
521 break;
522 }
523 case mmioFOURCC('I','C','M','T'):
524 case DMUS_FOURCC_UCMT_CHUNK: {
525 TRACE_(dmfile)(": comment chunk (ignored)\n");
526 liMove.QuadPart = chunkSize;
527 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
528 break;
529 }
530 default: {
531 TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
532 liMove.QuadPart = chunkSize;
533 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
534 break;
535 }
536 }
537 TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
538 } while (ListCount[0] < ListSize[0]);
539 break;
540 }
541 default: {
542 TRACE_(dmfile)(": unknown (skipping)\n");
543 liMove.QuadPart = chunkSize - sizeof(FOURCC);
544 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
545 break;
546 }
547 }
548 break;
549 }
550 default: {
551 TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
552 liMove.QuadPart = chunkSize;
553 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
554 break;
555 }
556 }
557 TRACE_(dmfile)(": StreamCount[0] = %d < StreamSize[0] = %d\n", StreamCount, StreamSize);
558 } while (StreamCount < StreamSize);
559 break;
560 }
561 default: {
562 TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
563 liMove.QuadPart = StreamSize;
564 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
565 return E_FAIL;
566 }
567 }
568 TRACE_(dmfile)(": reading finished\n");
569 break;
570 }
571 default: {
572 TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
573 liMove.QuadPart = chunkSize;
574 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
575 return E_FAIL;
576 }
577 }
578
579 return S_OK;
580 }
581
582 static HRESULT WINAPI IDirectMusicGraphImpl_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty) {
583 return E_NOTIMPL;
584 }
585
586 static HRESULT WINAPI IDirectMusicGraphImpl_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize) {
587 return E_NOTIMPL;
588 }
589
590 static const IPersistStreamVtbl DirectMusicGraph_PersistStream_Vtbl = {
591 IDirectMusicGraphImpl_IPersistStream_QueryInterface,
592 IDirectMusicGraphImpl_IPersistStream_AddRef,
593 IDirectMusicGraphImpl_IPersistStream_Release,
594 IDirectMusicGraphImpl_IPersistStream_GetClassID,
595 IDirectMusicGraphImpl_IPersistStream_IsDirty,
596 IDirectMusicGraphImpl_IPersistStream_Load,
597 IDirectMusicGraphImpl_IPersistStream_Save,
598 IDirectMusicGraphImpl_IPersistStream_GetSizeMax
599 };
600
601 /* for ClassFactory */
602 HRESULT WINAPI DMUSIC_CreateDirectMusicGraphImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
603 IDirectMusicGraphImpl* obj;
604
605 obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicGraphImpl));
606 if (NULL == obj) {
607 *ppobj = NULL;
608 return E_OUTOFMEMORY;
609 }
610 obj->UnknownVtbl = &DirectMusicGraph_Unknown_Vtbl;
611 obj->GraphVtbl = &DirectMusicGraph_Graph_Vtbl;
612 obj->ObjectVtbl = &DirectMusicGraph_Object_Vtbl;
613 obj->PersistStreamVtbl = &DirectMusicGraph_PersistStream_Vtbl;
614 obj->pDesc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DMUS_OBJECTDESC));
615 DM_STRUCT_INIT(obj->pDesc);
616 obj->pDesc->dwValidData |= DMUS_OBJ_CLASS;
617 memcpy (&obj->pDesc->guidClass, &CLSID_DirectMusicGraph, sizeof (CLSID));
618 obj->ref = 0; /* will be inited by QueryInterface */
619 list_init (&obj->Tools);
620
621 return IDirectMusicGraphImpl_IUnknown_QueryInterface ((LPUNKNOWN)&obj->UnknownVtbl, lpcGUID, ppobj);
622 }
Maarten's multimedia branch