dlls/dmime/dmobject.h

   1 /*
   2  * Base IDirectMusicObject Implementation
   3  * Keep in sync with the master in dlls/dmusic/dmobject.h
   4  *
   5  * Copyright (C) 2014 Michael Stefaniuc
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "wine/debug.h"
  23
  24 /* RIFF stream parsing */
  25 struct chunk_entry;
  26 struct chunk_entry {
  27     FOURCC id;
  28     DWORD size;
  29     FOURCC type;                        /* valid only for LIST and RIFF chunks */
  30     ULARGE_INTEGER offset;              /* chunk offset from start of stream */
  31     const struct chunk_entry *parent;   /* enclosing RIFF or LIST chunk */
  32 };
  33
  34 HRESULT stream_get_chunk(IStream *stream, struct chunk_entry *chunk);
  35 HRESULT stream_next_chunk(IStream *stream, struct chunk_entry *chunk);
  36 HRESULT stream_skip_chunk(IStream *stream, const struct chunk_entry *chunk);
  37
  38 HRESULT stream_chunk_get_array(IStream *stream, const struct chunk_entry *chunk, void **array,
  39         unsigned int *count, DWORD elem_size);
  40 HRESULT stream_chunk_get_data(IStream *stream, const struct chunk_entry *chunk, void *data,
  41         ULONG size);
  42 HRESULT stream_chunk_get_wstr(IStream *stream, const struct chunk_entry *chunk, WCHAR *str,
  43         ULONG size);
  44
  45 static inline HRESULT stream_reset_chunk_data(IStream *stream, const struct chunk_entry *chunk)
  46 {
  47     LARGE_INTEGER offset;
  48
  49     offset.QuadPart = chunk->offset.QuadPart + sizeof(FOURCC) + sizeof(DWORD);
  50     if (chunk->id == FOURCC_RIFF || chunk->id == FOURCC_LIST)
  51         offset.QuadPart += sizeof(FOURCC);
  52
  53     return IStream_Seek(stream, offset, STREAM_SEEK_SET, NULL);
  54 }
  55
  56 static inline HRESULT stream_reset_chunk_start(IStream *stream, const struct chunk_entry *chunk)
  57 {
  58     LARGE_INTEGER offset;
  59
  60     offset.QuadPart = chunk->offset.QuadPart;
  61
  62     return IStream_Seek(stream, offset, STREAM_SEEK_SET, NULL);
  63 }
  64
  65
  66 /* IDirectMusicObject base object */
  67 struct dmobject {
  68     IDirectMusicObject IDirectMusicObject_iface;
  69     IPersistStream IPersistStream_iface;
  70     IUnknown *outer_unk;
  71     DMUS_OBJECTDESC desc;
  72 };
  73
  74 void dmobject_init(struct dmobject *dmobj, const GUID *class, IUnknown *outer_unk);
  75
  76 /* Generic IDirectMusicObject methods */
  77 HRESULT WINAPI dmobj_IDirectMusicObject_QueryInterface(IDirectMusicObject *iface, REFIID riid,
  78         void **ret_iface);
  79 ULONG WINAPI dmobj_IDirectMusicObject_AddRef(IDirectMusicObject *iface);
  80 ULONG WINAPI dmobj_IDirectMusicObject_Release(IDirectMusicObject *iface);
  81 HRESULT WINAPI dmobj_IDirectMusicObject_GetDescriptor(IDirectMusicObject *iface,
  82         DMUS_OBJECTDESC *desc);
  83 HRESULT WINAPI dmobj_IDirectMusicObject_SetDescriptor(IDirectMusicObject *iface,
  84         DMUS_OBJECTDESC *desc);
  85
  86 /* Helper for IDirectMusicObject::ParseDescriptor */
  87 HRESULT dmobj_parsedescriptor(IStream *stream, const struct chunk_entry *riff,
  88         DMUS_OBJECTDESC *desc, DWORD supported);
  89 /* Additional supported flags for dmobj_parsedescriptor.
  90    DMUS_OBJ_NAME is 'UNAM' chunk in UNFO list */
  91 #define DMUS_OBJ_NAME_INAM   0x1000     /* 'INAM' chunk in UNFO list */
  92 #define DMUS_OBJ_NAME_INFO   0x2000     /* 'INAM' chunk in INFO list */
  93
  94 /* 'DMRF' (reference list) helper */
  95 HRESULT dmobj_parsereference(IStream *stream, const struct chunk_entry *list,
  96         IDirectMusicObject **dmobj);
  97
  98 /* Generic IPersistStream methods */
  99 HRESULT WINAPI dmobj_IPersistStream_QueryInterface(IPersistStream *iface, REFIID riid,
 100         void **ret_iface);
 101 ULONG WINAPI dmobj_IPersistStream_AddRef(IPersistStream *iface);
 102 ULONG WINAPI dmobj_IPersistStream_Release(IPersistStream *iface);
 103 HRESULT WINAPI dmobj_IPersistStream_GetClassID(IPersistStream *iface, CLSID *class);
 104
 105 /* IPersistStream methods not implemented in native */
 106 HRESULT WINAPI unimpl_IPersistStream_GetClassID(IPersistStream *iface,
 107         CLSID *class);
 108 HRESULT WINAPI unimpl_IPersistStream_IsDirty(IPersistStream *iface);
 109 HRESULT WINAPI unimpl_IPersistStream_Save(IPersistStream *iface, IStream *stream,
 110         BOOL clear_dirty);
 111 HRESULT WINAPI unimpl_IPersistStream_GetSizeMax(IPersistStream *iface,
 112         ULARGE_INTEGER *size);
 113
 114 /* Debugging helpers */
 115 const char *debugstr_chunk(const struct chunk_entry *chunk);
 116 const char *debugstr_dmguid(const GUID *id);
 117 void dump_DMUS_OBJECTDESC(DMUS_OBJECTDESC *desc);
 118
 119 static inline const char *debugstr_fourcc(DWORD fourcc)
 120 {
 121     if (!fourcc) return "''";
 122     return wine_dbg_sprintf("'%c%c%c%c'", (char)(fourcc), (char)(fourcc >> 8),
 123             (char)(fourcc >> 16), (char)(fourcc >> 24));
 124 }