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=%ld\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=%ld\n", This, ref);
  86
  87     if (!ref) free(This);
  88
  89     return ref;
  90 }
  91
  92 static const IUnknownVtbl unknown_vtbl = {
  93     IUnknownImpl_QueryInterface,
  94     IUnknownImpl_AddRef,
  95     IUnknownImpl_Release
  96 };
  97
  98 /* IDirectMusicWaveImpl IDirectMusicObject part: */
  99 static HRESULT WINAPI wave_IDirectMusicObject_ParseDescriptor(IDirectMusicObject *iface,
 100         IStream *stream, DMUS_OBJECTDESC *desc)
 101 {
 102     struct chunk_entry riff = {0};
 103     HRESULT hr;
 104
 105     TRACE("(%p, %p, %p)\n", iface, stream, desc);
 106
 107     if (!stream || !desc)
 108         return E_POINTER;
 109
 110     if ((hr = stream_get_chunk(stream, &riff)) != S_OK)
 111         return hr;
 112     if (riff.id != FOURCC_RIFF || riff.type != mmioFOURCC('W','A','V','E')) {
 113         TRACE("loading failed: unexpected %s\n", debugstr_chunk(&riff));
 114         stream_skip_chunk(stream, &riff);
 115         return DMUS_E_CHUNKNOTFOUND;
 116     }
 117
 118     hr = dmobj_parsedescriptor(stream, &riff, desc,
 119             DMUS_OBJ_NAME_INFO | DMUS_OBJ_OBJECT | DMUS_OBJ_VERSION);
 120     if (FAILED(hr))
 121         return hr;
 122
 123     TRACE("returning descriptor:\n");
 124     dump_DMUS_OBJECTDESC(desc);
 125     return S_OK;
 126 }
 127
 128 static const IDirectMusicObjectVtbl dmobject_vtbl = {
 129     dmobj_IDirectMusicObject_QueryInterface,
 130     dmobj_IDirectMusicObject_AddRef,
 131     dmobj_IDirectMusicObject_Release,
 132     dmobj_IDirectMusicObject_GetDescriptor,
 133     dmobj_IDirectMusicObject_SetDescriptor,
 134     wave_IDirectMusicObject_ParseDescriptor
 135 };
 136
 137 /* IDirectMusicWaveImpl IPersistStream part: */
 138 static inline IDirectMusicWaveImpl *impl_from_IPersistStream(IPersistStream *iface)
 139 {
 140     return CONTAINING_RECORD(iface, IDirectMusicWaveImpl, dmobj.IPersistStream_iface);
 141 }
 142
 143 static HRESULT WINAPI wave_IPersistStream_Load(IPersistStream *iface, IStream *stream)
 144 {
 145     IDirectMusicWaveImpl *This = impl_from_IPersistStream(iface);
 146     struct chunk_entry riff = {0};
 147
 148     /* Without the private interface the implementation should go to dmime/segment.c */
 149     FIXME("(%p, %p): loading not implemented (only descriptor is loaded)\n", This, stream);
 150
 151     if (!stream)
 152         return E_POINTER;
 153
 154     if (stream_get_chunk(stream, &riff) != S_OK || riff.id != FOURCC_RIFF ||
 155             riff.type != mmioFOURCC('W','A','V','E'))
 156         return DMUS_E_UNSUPPORTED_STREAM;
 157     stream_reset_chunk_start(stream, &riff);
 158
 159     return IDirectMusicObject_ParseDescriptor(&This->dmobj.IDirectMusicObject_iface, stream,
 160             &This->dmobj.desc);
 161 }
 162
 163 static const IPersistStreamVtbl persiststream_vtbl = {
 164     dmobj_IPersistStream_QueryInterface,
 165     dmobj_IPersistStream_AddRef,
 166     dmobj_IPersistStream_Release,
 167     dmobj_IPersistStream_GetClassID,
 168     unimpl_IPersistStream_IsDirty,
 169     wave_IPersistStream_Load,
 170     unimpl_IPersistStream_Save,
 171     unimpl_IPersistStream_GetSizeMax
 172 };
 173
 174 /* for ClassFactory */
 175 HRESULT create_dswave(REFIID lpcGUID, void **ppobj)
 176 {
 177     IDirectMusicWaveImpl *obj;
 178     HRESULT hr;
 179
 180     *ppobj = NULL;
 181     if (!(obj = calloc(1, sizeof(*obj)))) return E_OUTOFMEMORY;
 182     obj->IUnknown_iface.lpVtbl = &unknown_vtbl;
 183     obj->ref = 1;
 184     dmobject_init(&obj->dmobj, &CLSID_DirectSoundWave, &obj->IUnknown_iface);
 185     obj->dmobj.IDirectMusicObject_iface.lpVtbl = &dmobject_vtbl;
 186     obj->dmobj.IPersistStream_iface.lpVtbl = &persiststream_vtbl;
 187
 188     hr = IUnknown_QueryInterface(&obj->IUnknown_iface, lpcGUID, ppobj);
 189     IUnknown_Release(&obj->IUnknown_iface);
 190     return hr;
 191 }