dlls/dswave/dswave.c

   1 /* IDirectMusicWave Implementation
   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 "dswave_private.h"
  21 #include "dmobject.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(dswave);
  24
  25 /* an interface that is, according to my tests, obtained by loader after loading object; is it acting
  26    as some sort of bridge between object and loader? */
  27 static const GUID IID_IDirectMusicWavePRIVATE = {0x69e934e4,0x97f1,0x4f1d,{0x88,0xe8,0xf2,0xac,0x88,0x67,0x13,0x27}};
  28
  29 /*****************************************************************************
  30  * IDirectMusicWaveImpl implementation
  31  */
  32 typedef struct IDirectMusicWaveImpl {
  33     IUnknown IUnknown_iface;
  34     struct dmobject dmobj;
  35     LONG ref;
  36 } IDirectMusicWaveImpl;
  37
  38 /* IDirectMusicWaveImpl IUnknown part: */
  39 static inline IDirectMusicWaveImpl *impl_from_IUnknown(IUnknown *iface)
  40 {
  41     return CONTAINING_RECORD(iface, IDirectMusicWaveImpl, IUnknown_iface);
  42 }
  43
  44 static HRESULT WINAPI IUnknownImpl_QueryInterface(IUnknown *iface, REFIID riid, void **ret_iface)
  45 {
  46     IDirectMusicWaveImpl *This = impl_from_IUnknown(iface);
  47
  48     TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ret_iface);
  49
  50     *ret_iface = NULL;
  51
  52     if (IsEqualIID(riid, &IID_IUnknown))
  53         *ret_iface = iface;
  54     else if (IsEqualIID(riid, &IID_IDirectMusicObject))
  55         *ret_iface = &This->dmobj.IDirectMusicObject_iface;
  56     else if (IsEqualIID(riid, &IID_IPersistStream))
  57         *ret_iface = &This->dmobj.IPersistStream_iface;
  58     else if (IsEqualIID(riid, &IID_IDirectMusicWavePRIVATE)) {
  59         FIXME("(%p, %s, %p): Unsupported private interface\n", This, debugstr_guid(riid), ret_iface);
  60         return E_NOINTERFACE;
  61     } else {
  62         WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ret_iface);
  63         return E_NOINTERFACE;
  64     }
  65
  66     IUnknown_AddRef((IUnknown*)*ret_iface);
  67     return S_OK;
  68 }
  69
  70 static ULONG WINAPI IUnknownImpl_AddRef(IUnknown *iface)
  71 {
  72     IDirectMusicWaveImpl *This = impl_from_IUnknown(iface);
  73     LONG ref = InterlockedIncrement(&This->ref);
  74
  75     TRACE("(%p) ref=%d\n", This, ref);
  76
  77     return ref;
  78 }
  79
  80 static ULONG WINAPI IUnknownImpl_Release(IUnknown *iface)
  81 {
  82     IDirectMusicWaveImpl *This = impl_from_IUnknown(iface);
  83     LONG ref = InterlockedDecrement(&This->ref);
  84
  85     TRACE("(%p) ref=%d\n", This, ref);
  86
  87     if (!ref) {
  88         HeapFree(GetProcessHeap(), 0, This);
  89         DSWAVE_UnlockModule();
  90     }
  91
  92     return ref;
  93 }
  94
  95 static const IUnknownVtbl unknown_vtbl = {
  96     IUnknownImpl_QueryInterface,
  97     IUnknownImpl_AddRef,
  98     IUnknownImpl_Release
  99 };
 100
 101 /* IDirectMusicWaveImpl IDirectMusicObject part: */
 102 static HRESULT WINAPI wave_IDirectMusicObject_ParseDescriptor(IDirectMusicObject *iface,
 103         IStream *stream, DMUS_OBJECTDESC *desc)
 104 {
 105     struct chunk_entry riff = {0};
 106     HRESULT hr;
 107
 108     TRACE("(%p, %p, %p)\n", iface, stream, desc);
 109
 110     if (!stream || !desc)
 111         return E_POINTER;
 112
 113     if ((hr = stream_get_chunk(stream, &riff)) != S_OK)
 114         return hr;
 115     if (riff.id != FOURCC_RIFF || riff.type != mmioFOURCC('W','A','V','E')) {
 116         TRACE("loading failed: unexpected %s\n", debugstr_chunk(&riff));
 117         stream_skip_chunk(stream, &riff);
 118         return DMUS_E_CHUNKNOTFOUND;
 119     }
 120
 121     hr = dmobj_parsedescriptor(stream, &riff, desc,
 122             DMUS_OBJ_NAME_INFO | DMUS_OBJ_OBJECT | DMUS_OBJ_VERSION);
 123     if (FAILED(hr))
 124         return hr;
 125
 126     TRACE("returning descriptor:\n");
 127     dump_DMUS_OBJECTDESC(desc);
 128     return S_OK;
 129 }
 130
 131 static const IDirectMusicObjectVtbl dmobject_vtbl = {
 132     dmobj_IDirectMusicObject_QueryInterface,
 133     dmobj_IDirectMusicObject_AddRef,
 134     dmobj_IDirectMusicObject_Release,
 135     dmobj_IDirectMusicObject_GetDescriptor,
 136     dmobj_IDirectMusicObject_SetDescriptor,
 137     wave_IDirectMusicObject_ParseDescriptor
 138 };
 139
 140 /* IDirectMusicWaveImpl IPersistStream part: */
 141 static inline IDirectMusicWaveImpl *impl_from_IPersistStream(IPersistStream *iface)
 142 {
 143     return CONTAINING_RECORD(iface, IDirectMusicWaveImpl, dmobj.IPersistStream_iface);
 144 }
 145
 146 static HRESULT WINAPI wave_IPersistStream_Load(IPersistStream *iface, IStream *stream)
 147 {
 148     IDirectMusicWaveImpl *This = impl_from_IPersistStream(iface);
 149     struct chunk_entry riff = {0};
 150
 151     /* Without the private interface the implementation should go to dmime/segment.c */
 152     FIXME("(%p, %p): loading not implemented (only descriptor is loaded)\n", This, stream);
 153
 154     if (!stream)
 155         return E_POINTER;
 156
 157     if (stream_get_chunk(stream, &riff) != S_OK || riff.id != FOURCC_RIFF ||
 158             riff.type != mmioFOURCC('W','A','V','E'))
 159         return DMUS_E_UNSUPPORTED_STREAM;
 160     stream_reset_chunk_start(stream, &riff);
 161
 162     return IDirectMusicObject_ParseDescriptor(&This->dmobj.IDirectMusicObject_iface, stream,
 163             &This->dmobj.desc);
 164 }
 165
 166 static const IPersistStreamVtbl persiststream_vtbl = {
 167     dmobj_IPersistStream_QueryInterface,
 168     dmobj_IPersistStream_AddRef,
 169     dmobj_IPersistStream_Release,
 170     dmobj_IPersistStream_GetClassID,
 171     unimpl_IPersistStream_IsDirty,
 172     wave_IPersistStream_Load,
 173     unimpl_IPersistStream_Save,
 174     unimpl_IPersistStream_GetSizeMax
 175 };
 176
 177 /* for ClassFactory */
 178 HRESULT WINAPI create_dswave(REFIID lpcGUID, void **ppobj)
 179 {
 180     IDirectMusicWaveImpl *obj;
 181     HRESULT hr;
 182
 183     obj = HeapAlloc(GetProcessHeap(), 0, sizeof(IDirectMusicWaveImpl));
 184     if (!obj) {
 185         *ppobj = NULL;
 186         return E_OUTOFMEMORY;
 187     }
 188     obj->IUnknown_iface.lpVtbl = &unknown_vtbl;
 189     obj->ref = 1;
 190     dmobject_init(&obj->dmobj, &CLSID_DirectSoundWave, &obj->IUnknown_iface);
 191     obj->dmobj.IDirectMusicObject_iface.lpVtbl = &dmobject_vtbl;
 192     obj->dmobj.IPersistStream_iface.lpVtbl = &persiststream_vtbl;
 193
 194     DSWAVE_LockModule();
 195     hr = IUnknown_QueryInterface(&obj->IUnknown_iface, lpcGUID, ppobj);
 196     IUnknown_Release(&obj->IUnknown_iface);
 197     return hr;
 198 }