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