2 * IDirectMusicInstrument Implementation
4 * Copyright (C) 2003-2004 Rok Mandeljc
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "dmusic_private.h"
23 WINE_DEFAULT_DEBUG_CHANNEL(dmusic);
25 static const GUID IID_IDirectMusicInstrumentPRIVATE = { 0xbcb20080, 0xa40c, 0x11d1, { 0x86, 0xbc, 0x00, 0xc0, 0x4f, 0xbf, 0x8f, 0xef } };
27 /* IDirectMusicInstrument IUnknown part: */
28 static HRESULT WINAPI IDirectMusicInstrumentImpl_QueryInterface(LPDIRECTMUSICINSTRUMENT iface, REFIID riid, LPVOID *ret_iface)
30 TRACE("(%p)->(%s, %p)\n", iface, debugstr_dmguid(riid), ret_iface);
32 if (IsEqualIID(riid, &IID_IUnknown) ||
33 IsEqualIID(riid, &IID_IDirectMusicInstrument))
36 IDirectMusicInstrument_AddRef(iface);
39 else if (IsEqualIID(riid, &IID_IDirectMusicInstrumentPRIVATE))
41 /* it seems to me that this interface is only basic IUnknown, without any
42 * other inherited functions... *sigh* this is the worst scenario, since it means
43 * that whoever calls it knows the layout of original implementation table and therefore
44 * tries to get data by direct access... expect crashes
46 FIXME("*sigh*... requested private/unspecified interface\n");
49 IDirectMusicInstrument_AddRef(iface);
53 WARN("(%p)->(%s, %p): not found\n", iface, debugstr_dmguid(riid), ret_iface);
58 static ULONG WINAPI IDirectMusicInstrumentImpl_AddRef(LPDIRECTMUSICINSTRUMENT iface)
60 IDirectMusicInstrumentImpl *This = impl_from_IDirectMusicInstrument(iface);
61 ULONG ref = InterlockedIncrement(&This->ref);
63 TRACE("(%p)->(): new ref = %u\n", iface, ref);
70 static ULONG WINAPI IDirectMusicInstrumentImpl_Release(LPDIRECTMUSICINSTRUMENT iface)
72 IDirectMusicInstrumentImpl *This = impl_from_IDirectMusicInstrument(iface);
73 ULONG ref = InterlockedDecrement(&This->ref);
75 TRACE("(%p)->(): new ref = %u\n", iface, ref);
81 HeapFree(GetProcessHeap(), 0, This->regions);
82 for (i = 0; i < This->nb_articulations; i++)
83 HeapFree(GetProcessHeap(), 0, This->articulations->connections);
84 HeapFree(GetProcessHeap(), 0, This->articulations);
85 HeapFree(GetProcessHeap(), 0, This);
88 DMUSIC_UnlockModule();
93 /* IDirectMusicInstrumentImpl IDirectMusicInstrument part: */
94 static HRESULT WINAPI IDirectMusicInstrumentImpl_GetPatch(LPDIRECTMUSICINSTRUMENT iface, DWORD* pdwPatch)
96 IDirectMusicInstrumentImpl *This = impl_from_IDirectMusicInstrument(iface);
98 TRACE("(%p)->(%p)\n", This, pdwPatch);
100 *pdwPatch = MIDILOCALE2Patch(&This->header.Locale);
105 static HRESULT WINAPI IDirectMusicInstrumentImpl_SetPatch(LPDIRECTMUSICINSTRUMENT iface, DWORD dwPatch)
107 IDirectMusicInstrumentImpl *This = impl_from_IDirectMusicInstrument(iface);
109 TRACE("(%p)->(%d): stub\n", This, dwPatch);
111 Patch2MIDILOCALE(dwPatch, &This->header.Locale);
116 static const IDirectMusicInstrumentVtbl DirectMusicInstrument_Vtbl =
118 IDirectMusicInstrumentImpl_QueryInterface,
119 IDirectMusicInstrumentImpl_AddRef,
120 IDirectMusicInstrumentImpl_Release,
121 IDirectMusicInstrumentImpl_GetPatch,
122 IDirectMusicInstrumentImpl_SetPatch
125 /* for ClassFactory */
126 HRESULT DMUSIC_CreateDirectMusicInstrumentImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
127 IDirectMusicInstrumentImpl* dminst;
129 dminst = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicInstrumentImpl));
130 if (NULL == dminst) {
132 return E_OUTOFMEMORY;
134 dminst->IDirectMusicInstrument_iface.lpVtbl = &DirectMusicInstrument_Vtbl;
135 dminst->ref = 0; /* will be inited by QueryInterface */
137 return IDirectMusicInstrument_QueryInterface(&dminst->IDirectMusicInstrument_iface, lpcGUID, ppobj);
140 static HRESULT read_from_stream(IStream *stream, void *data, ULONG size)
145 hr = IStream_Read(stream, data, size, &bytes_read);
147 TRACE("IStream_Read failed: %08x\n", hr);
150 if (bytes_read < size) {
151 TRACE("Didn't read full chunk: %u < %u\n", bytes_read, size);
158 static inline DWORD subtract_bytes(DWORD len, DWORD bytes)
161 TRACE("Apparent mismatch in chunk lengths? %u bytes remaining, %u bytes read\n", len, bytes);
167 static inline HRESULT advance_stream(IStream *stream, ULONG bytes)
172 move.QuadPart = bytes;
174 ret = IStream_Seek(stream, move, STREAM_SEEK_CUR, NULL);
176 WARN("IStream_Seek failed: %08x\n", ret);
181 static HRESULT load_region(IDirectMusicInstrumentImpl *This, IStream *stream, instrument_region *region, ULONG length)
184 DMUS_PRIVATE_CHUNK chunk;
186 TRACE("(%p, %p, %p, %u)\n", This, stream, region, length);
190 ret = read_from_stream(stream, &chunk, sizeof(chunk));
194 length = subtract_bytes(length, sizeof(chunk));
199 TRACE("RGNH chunk (region header): %u bytes\n", chunk.dwSize);
201 ret = read_from_stream(stream, ®ion->header, sizeof(region->header));
205 length = subtract_bytes(length, sizeof(region->header));
209 TRACE("WSMP chunk (wave sample): %u bytes\n", chunk.dwSize);
211 ret = read_from_stream(stream, ®ion->wave_sample, sizeof(region->wave_sample));
214 length = subtract_bytes(length, sizeof(region->wave_sample));
216 if (!(region->loop_present = (chunk.dwSize != sizeof(region->wave_sample))))
219 ret = read_from_stream(stream, ®ion->wave_loop, sizeof(region->wave_loop));
223 length = subtract_bytes(length, sizeof(region->wave_loop));
227 TRACE("WLNK chunk (wave link): %u bytes\n", chunk.dwSize);
229 ret = read_from_stream(stream, ®ion->wave_link, sizeof(region->wave_link));
233 length = subtract_bytes(length, sizeof(region->wave_link));
237 TRACE("Unknown chunk %s (skipping): %u bytes\n", debugstr_fourcc(chunk.fccID), chunk.dwSize);
239 ret = advance_stream(stream, chunk.dwSize);
243 length = subtract_bytes(length, chunk.dwSize);
251 static HRESULT load_articulation(IDirectMusicInstrumentImpl *This, IStream *stream, ULONG length)
254 instrument_articulation *articulation;
256 if (!This->articulations)
257 This->articulations = HeapAlloc(GetProcessHeap(), 0, sizeof(*This->articulations));
259 This->articulations = HeapReAlloc(GetProcessHeap(), 0, This->articulations, sizeof(*This->articulations) * (This->nb_articulations + 1));
260 if (!This->articulations)
261 return E_OUTOFMEMORY;
263 articulation = &This->articulations[This->nb_articulations];
265 ret = read_from_stream(stream, &articulation->connections_list, sizeof(CONNECTIONLIST));
269 articulation->connections = HeapAlloc(GetProcessHeap(), 0, sizeof(CONNECTION) * articulation->connections_list.cConnections);
270 if (!articulation->connections)
271 return E_OUTOFMEMORY;
273 ret = read_from_stream(stream, articulation->connections, sizeof(CONNECTION) * articulation->connections_list.cConnections);
276 HeapFree(GetProcessHeap(), 0, articulation->connections);
280 subtract_bytes(length, sizeof(CONNECTIONLIST) + sizeof(CONNECTION) * articulation->connections_list.cConnections);
282 This->nb_articulations++;
287 /* Function that loads all instrument data and which is called from IDirectMusicCollection_GetInstrument as in native */
288 HRESULT IDirectMusicInstrumentImpl_CustomLoad(IDirectMusicInstrument *iface, IStream *stream)
290 IDirectMusicInstrumentImpl *This = impl_from_IDirectMusicInstrument(iface);
292 DMUS_PRIVATE_CHUNK chunk;
294 ULONG length = This->length;
296 TRACE("(%p, %p): offset = 0x%s, length = %u)\n", This, stream, wine_dbgstr_longlong(This->liInstrumentPosition.QuadPart), This->length);
301 hr = IStream_Seek(stream, This->liInstrumentPosition, STREAM_SEEK_SET, NULL);
304 WARN("IStream_Seek failed: %08x\n", hr);
305 return DMUS_E_UNSUPPORTED_STREAM;
308 This->regions = HeapAlloc(GetProcessHeap(), 0, sizeof(*This->regions) * This->header.cRegions);
310 return E_OUTOFMEMORY;
314 hr = read_from_stream(stream, &chunk, sizeof(chunk));
318 length = subtract_bytes(length, sizeof(chunk) + chunk.dwSize);
324 TRACE("Chunk %s: %u bytes\n", debugstr_fourcc(chunk.fccID), chunk.dwSize);
326 /* Instrument header and id are already set so just skip */
327 hr = advance_stream(stream, chunk.dwSize);
334 DWORD size = chunk.dwSize;
336 TRACE("LIST chunk: %u bytes\n", chunk.dwSize);
338 hr = read_from_stream(stream, &chunk.fccID, sizeof(chunk.fccID));
342 size = subtract_bytes(size, sizeof(chunk.fccID));
347 TRACE("LRGN chunk (regions list): %u bytes\n", size);
351 hr = read_from_stream(stream, &chunk, sizeof(chunk));
355 if (chunk.fccID != FOURCC_LIST)
357 TRACE("Unknown chunk %s: %u bytes\n", debugstr_fourcc(chunk.fccID), chunk.dwSize);
361 hr = read_from_stream(stream, &chunk.fccID, sizeof(chunk.fccID));
365 if (chunk.fccID == FOURCC_RGN)
367 TRACE("RGN chunk (region): %u bytes\n", chunk.dwSize);
368 hr = load_region(This, stream, &This->regions[i++], chunk.dwSize - sizeof(chunk.fccID));
372 TRACE("Unknown chunk %s: %u bytes\n", debugstr_fourcc(chunk.fccID), chunk.dwSize);
373 hr = advance_stream(stream, chunk.dwSize - sizeof(chunk.fccID));
378 size = subtract_bytes(size, chunk.dwSize + sizeof(chunk));
383 TRACE("LART chunk (articulations list): %u bytes\n", size);
387 hr = read_from_stream(stream, &chunk, sizeof(chunk));
391 if (chunk.fccID == FOURCC_ART1)
393 TRACE("ART1 chunk (level 1 articulation): %u bytes\n", chunk.dwSize);
394 hr = load_articulation(This, stream, chunk.dwSize);
398 TRACE("Unknown chunk %s: %u bytes\n", debugstr_fourcc(chunk.fccID), chunk.dwSize);
399 hr = advance_stream(stream, chunk.dwSize);
404 size = subtract_bytes(size, chunk.dwSize + sizeof(chunk));
409 TRACE("Unknown chunk %s: %u bytes\n", debugstr_fourcc(chunk.fccID), chunk.dwSize);
411 hr = advance_stream(stream, chunk.dwSize - sizeof(chunk.fccID));
415 size = subtract_bytes(size, chunk.dwSize - sizeof(chunk.fccID));
422 TRACE("Unknown chunk %s: %u bytes\n", debugstr_fourcc(chunk.fccID), chunk.dwSize);
424 hr = advance_stream(stream, chunk.dwSize);
437 HeapFree(GetProcessHeap(), 0, This->regions);
438 This->regions = NULL;
440 return DMUS_E_UNSUPPORTED_STREAM;