dlls/dmime/graph.c

   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 #include "dmobject.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(dmime);
  24
  25 struct IDirectMusicGraphImpl {
  26   IDirectMusicGraph IDirectMusicGraph_iface;
  27   struct dmobject dmobj;
  28   LONG ref;
  29   WORD              num_tools;
  30   struct list       Tools;
  31 };
  32
  33 static inline IDirectMusicGraphImpl *impl_from_IDirectMusicGraph(IDirectMusicGraph *iface)
  34 {
  35     return CONTAINING_RECORD(iface, IDirectMusicGraphImpl, IDirectMusicGraph_iface);
  36 }
  37
  38 static inline IDirectMusicGraphImpl *impl_from_IDirectMusicObject(IDirectMusicObject *iface)
  39 {
  40     return CONTAINING_RECORD(iface, IDirectMusicGraphImpl, dmobj.IDirectMusicObject_iface);
  41 }
  42
  43 static inline IDirectMusicGraphImpl *impl_from_IPersistStream(IPersistStream *iface)
  44 {
  45     return CONTAINING_RECORD(iface, IDirectMusicGraphImpl, dmobj.IPersistStream_iface);
  46 }
  47
  48 static HRESULT WINAPI DirectMusicGraph_QueryInterface(IDirectMusicGraph *iface, REFIID riid, void **ret_iface)
  49 {
  50     IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface);
  51
  52     TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ret_iface);
  53
  54     *ret_iface = NULL;
  55
  56     if (IsEqualIID(riid, &IID_IUnknown) ||
  57         IsEqualIID(riid, &IID_IDirectMusicGraph))
  58     {
  59         *ret_iface = &This->IDirectMusicGraph_iface;
  60     }
  61     else if (IsEqualIID(riid, &IID_IDirectMusicObject))
  62         *ret_iface = &This->dmobj.IDirectMusicObject_iface;
  63     else if (IsEqualIID(riid, &IID_IPersistStream))
  64         *ret_iface = &This->dmobj.IPersistStream_iface;
  65
  66     if (*ret_iface)
  67     {
  68         IDirectMusicGraph_AddRef(iface);
  69         return S_OK;
  70     }
  71
  72     WARN("(%p, %s, %p): not found\n", This, debugstr_guid(riid), ret_iface);
  73     return E_NOINTERFACE;
  74 }
  75
  76 static ULONG WINAPI DirectMusicGraph_AddRef(IDirectMusicGraph *iface)
  77 {
  78     IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface);
  79     ULONG ref = InterlockedIncrement(&This->ref);
  80
  81     TRACE("(%p): %d\n", This, ref);
  82
  83     DMIME_LockModule();
  84     return ref;
  85 }
  86
  87 static ULONG WINAPI DirectMusicGraph_Release(IDirectMusicGraph *iface)
  88 {
  89     IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface);
  90     ULONG ref = InterlockedDecrement(&This->ref);
  91
  92     TRACE("(%p): %d\n", This, ref);
  93
  94     if (ref == 0)
  95         HeapFree(GetProcessHeap(), 0, This);
  96
  97     DMIME_UnlockModule();
  98     return ref;
  99 }
 100
 101 static HRESULT WINAPI DirectMusicGraph_StampPMsg(IDirectMusicGraph *iface, DMUS_PMSG *msg)
 102 {
 103     IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface);
 104     FIXME("(%p, %p): stub\n", This, msg);
 105     return S_OK;
 106 }
 107
 108 static HRESULT WINAPI DirectMusicGraph_InsertTool(IDirectMusicGraph *iface, IDirectMusicTool* pTool, DWORD* pdwPChannels, DWORD cPChannels, LONG lIndex)
 109 {
 110     IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface);
 111     struct list* pEntry = NULL;
 112     struct list* pPrevEntry = NULL;
 113     LPDMUS_PRIVATE_GRAPH_TOOL pIt = NULL;
 114     LPDMUS_PRIVATE_GRAPH_TOOL pNewTool = NULL;
 115
 116     FIXME("(%p, %p, %p, %d, %i): use of pdwPChannels\n", This, pTool, pdwPChannels, cPChannels, lIndex);
 117
 118     if (!pTool)
 119         return E_POINTER;
 120
 121     if (lIndex < 0)
 122         lIndex = This->num_tools + lIndex;
 123
 124     pPrevEntry = &This->Tools;
 125     LIST_FOR_EACH(pEntry, &This->Tools)
 126     {
 127         pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_GRAPH_TOOL, entry);
 128         if (pIt->dwIndex == lIndex)
 129             return DMUS_E_ALREADY_EXISTS;
 130
 131         if (pIt->dwIndex > lIndex)
 132           break ;
 133         pPrevEntry = pEntry;
 134     }
 135
 136     ++This->num_tools;
 137     pNewTool = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_GRAPH_TOOL));
 138     pNewTool->pTool = pTool;
 139     pNewTool->dwIndex = lIndex;
 140     IDirectMusicTool8_AddRef(pTool);
 141     IDirectMusicTool8_Init(pTool, iface);
 142     list_add_tail (pPrevEntry->next, &pNewTool->entry);
 143
 144 #if 0
 145   DWORD dwNum = 0;
 146   IDirectMusicTool8_GetMediaTypes(pTool, &dwNum);
 147 #endif
 148
 149     return DS_OK;
 150 }
 151
 152 static HRESULT WINAPI DirectMusicGraph_GetTool(IDirectMusicGraph *iface, DWORD dwIndex, IDirectMusicTool** ppTool)
 153 {
 154     IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface);
 155     struct list* pEntry = NULL;
 156     LPDMUS_PRIVATE_GRAPH_TOOL pIt = NULL;
 157
 158     FIXME("(%p, %d, %p): stub\n", This, dwIndex, ppTool);
 159
 160     LIST_FOR_EACH (pEntry, &This->Tools)
 161     {
 162         pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_GRAPH_TOOL, entry);
 163         if (pIt->dwIndex == dwIndex)
 164         {
 165             *ppTool = pIt->pTool;
 166             if (*ppTool)
 167                 IDirectMusicTool_AddRef(*ppTool);
 168             return S_OK;
 169         }
 170         if (pIt->dwIndex > dwIndex)
 171             break ;
 172     }
 173
 174     return DMUS_E_NOT_FOUND;
 175 }
 176
 177 static HRESULT WINAPI DirectMusicGraph_RemoveTool(IDirectMusicGraph *iface, IDirectMusicTool* pTool)
 178 {
 179     IDirectMusicGraphImpl *This = impl_from_IDirectMusicGraph(iface);
 180     FIXME("(%p, %p): stub\n", This, pTool);
 181     return S_OK;
 182 }
 183
 184 static const IDirectMusicGraphVtbl DirectMusicGraphVtbl =
 185 {
 186     DirectMusicGraph_QueryInterface,
 187     DirectMusicGraph_AddRef,
 188     DirectMusicGraph_Release,
 189     DirectMusicGraph_StampPMsg,
 190     DirectMusicGraph_InsertTool,
 191     DirectMusicGraph_GetTool,
 192     DirectMusicGraph_RemoveTool
 193 };
 194
 195 static HRESULT WINAPI graph_IDirectMusicObject_ParseDescriptor(IDirectMusicObject *iface,
 196         IStream *stream, DMUS_OBJECTDESC *desc)
 197 {
 198     struct chunk_entry riff = {0};
 199     HRESULT hr;
 200
 201     TRACE("(%p, %p, %p)\n", iface, stream, desc);
 202
 203     if (!stream)
 204         return E_POINTER;
 205     if (!desc || desc->dwSize != sizeof(*desc))
 206         return E_INVALIDARG;
 207
 208     if ((hr = stream_get_chunk(stream, &riff)) != S_OK)
 209         return hr;
 210     if (riff.id != FOURCC_RIFF || riff.type != DMUS_FOURCC_TOOLGRAPH_FORM) {
 211         TRACE("loading failed: unexpected %s\n", debugstr_chunk(&riff));
 212         stream_skip_chunk(stream, &riff);
 213         return DMUS_E_CHUNKNOTFOUND;
 214     }
 215
 216     hr = dmobj_parsedescriptor(stream, &riff, desc,
 217             DMUS_OBJ_OBJECT|DMUS_OBJ_NAME|DMUS_OBJ_CATEGORY|DMUS_OBJ_VERSION);
 218     if (FAILED(hr))
 219         return hr;
 220
 221     desc->guidClass = CLSID_DirectMusicGraph;
 222     desc->dwValidData |= DMUS_OBJ_CLASS;
 223
 224     TRACE("returning descriptor:\n%s\n", debugstr_DMUS_OBJECTDESC (desc));
 225     return S_OK;
 226 }
 227
 228 static const IDirectMusicObjectVtbl dmobject_vtbl = {
 229     dmobj_IDirectMusicObject_QueryInterface,
 230     dmobj_IDirectMusicObject_AddRef,
 231     dmobj_IDirectMusicObject_Release,
 232     dmobj_IDirectMusicObject_GetDescriptor,
 233     dmobj_IDirectMusicObject_SetDescriptor,
 234     graph_IDirectMusicObject_ParseDescriptor
 235 };
 236
 237 static HRESULT WINAPI graph_IPersistStream_Load(IPersistStream *iface, IStream *stream)
 238 {
 239     IDirectMusicGraphImpl *This = impl_from_IPersistStream(iface);
 240
 241     FIXME("(%p, %p): Loading not implemented yet\n", This, stream);
 242
 243     return IDirectMusicObject_ParseDescriptor(&This->dmobj.IDirectMusicObject_iface, stream,
 244             &This->dmobj.desc);
 245 }
 246
 247 static const IPersistStreamVtbl persiststream_vtbl = {
 248     dmobj_IPersistStream_QueryInterface,
 249     dmobj_IPersistStream_AddRef,
 250     dmobj_IPersistStream_Release,
 251     dmobj_IPersistStream_GetClassID,
 252     unimpl_IPersistStream_IsDirty,
 253     graph_IPersistStream_Load,
 254     unimpl_IPersistStream_Save,
 255     unimpl_IPersistStream_GetSizeMax
 256 };
 257
 258 /* for ClassFactory */
 259 HRESULT WINAPI create_dmgraph(REFIID riid, void **ret_iface)
 260 {
 261     IDirectMusicGraphImpl* obj;
 262     HRESULT hr;
 263
 264     *ret_iface = NULL;
 265
 266     obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicGraphImpl));
 267     if (!obj)
 268         return E_OUTOFMEMORY;
 269
 270     obj->IDirectMusicGraph_iface.lpVtbl = &DirectMusicGraphVtbl;
 271     obj->ref = 1;
 272     dmobject_init(&obj->dmobj, &CLSID_DirectMusicGraph, (IUnknown *)&obj->IDirectMusicGraph_iface);
 273     obj->dmobj.IDirectMusicObject_iface.lpVtbl = &dmobject_vtbl;
 274     obj->dmobj.IPersistStream_iface.lpVtbl = &persiststream_vtbl;
 275     list_init(&obj->Tools);
 276
 277     hr = IDirectMusicGraph_QueryInterface(&obj->IDirectMusicGraph_iface, riid, ret_iface);
 278     IDirectMusicGraph_Release(&obj->IDirectMusicGraph_iface);
 279
 280     return hr;
 281 }