dlls/dmstyle/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) DECLSPEC_HIDDEN;
  35 HRESULT stream_next_chunk(IStream *stream, struct chunk_entry *chunk) DECLSPEC_HIDDEN;
  36 HRESULT stream_skip_chunk(IStream *stream, struct chunk_entry *chunk) DECLSPEC_HIDDEN;
  37
  38 HRESULT stream_chunk_get_data(IStream *stream, const struct chunk_entry *chunk, void *data,
  39         ULONG size) DECLSPEC_HIDDEN;
  40 HRESULT stream_chunk_get_wstr(IStream *stream, const struct chunk_entry *chunk, WCHAR *str,
  41         ULONG size) DECLSPEC_HIDDEN;
  42
  43 static inline HRESULT stream_reset_chunk_data(IStream *stream, const struct chunk_entry *chunk)
  44 {
  45     LARGE_INTEGER offset;
  46
  47     offset.QuadPart = chunk->offset.QuadPart + sizeof(FOURCC) + sizeof(DWORD);
  48     if (chunk->id == FOURCC_RIFF || chunk->id == FOURCC_LIST)
  49         offset.QuadPart += sizeof(FOURCC);
  50
  51     return IStream_Seek(stream, offset, STREAM_SEEK_SET, NULL);
  52 }
  53
  54 static inline HRESULT stream_reset_chunk_start(IStream *stream, const struct chunk_entry *chunk)
  55 {
  56     LARGE_INTEGER offset;
  57
  58     offset.QuadPart = chunk->offset.QuadPart;
  59
  60     return IStream_Seek(stream, offset, STREAM_SEEK_SET, NULL);
  61 }
  62
  63
  64 /* IDirectMusicObject base object */
  65 struct dmobject {
  66     IDirectMusicObject IDirectMusicObject_iface;
  67     IPersistStream IPersistStream_iface;
  68     IUnknown *outer_unk;
  69     DMUS_OBJECTDESC desc;
  70 };
  71
  72 void dmobject_init(struct dmobject *dmobj, const GUID *class, IUnknown *outer_unk) DECLSPEC_HIDDEN;
  73
  74 /* Generic IDirectMusicObject methods */
  75 HRESULT WINAPI dmobj_IDirectMusicObject_QueryInterface(IDirectMusicObject *iface, REFIID riid,
  76         void **ret_iface) DECLSPEC_HIDDEN;
  77 ULONG WINAPI dmobj_IDirectMusicObject_AddRef(IDirectMusicObject *iface) DECLSPEC_HIDDEN;
  78 ULONG WINAPI dmobj_IDirectMusicObject_Release(IDirectMusicObject *iface) DECLSPEC_HIDDEN;
  79 HRESULT WINAPI dmobj_IDirectMusicObject_GetDescriptor(IDirectMusicObject *iface,
  80         DMUS_OBJECTDESC *desc) DECLSPEC_HIDDEN;
  81 HRESULT WINAPI dmobj_IDirectMusicObject_SetDescriptor(IDirectMusicObject *iface,
  82         DMUS_OBJECTDESC *desc) DECLSPEC_HIDDEN;
  83
  84 /* Helper for IDirectMusicObject::ParseDescriptor */
  85 HRESULT dmobj_parsedescriptor(IStream *stream, const struct chunk_entry *riff,
  86         DMUS_OBJECTDESC *desc, DWORD supported) DECLSPEC_HIDDEN;
  87 /* Additional supported flags for dmobj_parsedescriptor.
  88    DMUS_OBJ_NAME is 'UNAM' chunk in UNFO list */
  89 #define DMUS_OBJ_NAME_INAM   0x1000     /* 'INAM' chunk in UNFO list */
  90 #define DMUS_OBJ_NAME_INFO   0x2000     /* 'INAM' chunk in INFO list */
  91
  92 /* Generic IPersistStream methods */
  93 HRESULT WINAPI dmobj_IPersistStream_QueryInterface(IPersistStream *iface, REFIID riid,
  94         void **ret_iface) DECLSPEC_HIDDEN;
  95 ULONG WINAPI dmobj_IPersistStream_AddRef(IPersistStream *iface) DECLSPEC_HIDDEN;
  96 ULONG WINAPI dmobj_IPersistStream_Release(IPersistStream *iface) DECLSPEC_HIDDEN;
  97 HRESULT WINAPI dmobj_IPersistStream_GetClassID(IPersistStream *iface, CLSID *class) DECLSPEC_HIDDEN;
  98
  99 /* IPersistStream methods not implemented in native */
 100 HRESULT WINAPI unimpl_IPersistStream_GetClassID(IPersistStream *iface,
 101         CLSID *class) DECLSPEC_HIDDEN;
 102 HRESULT WINAPI unimpl_IPersistStream_IsDirty(IPersistStream *iface) DECLSPEC_HIDDEN;
 103 HRESULT WINAPI unimpl_IPersistStream_Save(IPersistStream *iface, IStream *stream,
 104         BOOL clear_dirty) DECLSPEC_HIDDEN;
 105 HRESULT WINAPI unimpl_IPersistStream_GetSizeMax(IPersistStream *iface,
 106         ULARGE_INTEGER *size) DECLSPEC_HIDDEN;
 107
 108 /* Debugging helpers */
 109 const char *debugstr_chunk(const struct chunk_entry *chunk) DECLSPEC_HIDDEN;
 110 const char *debugstr_dmguid(const GUID *id) DECLSPEC_HIDDEN;
 111 void dump_DMUS_OBJECTDESC(DMUS_OBJECTDESC *desc) DECLSPEC_HIDDEN;
 112
 113 static inline const char *debugstr_fourcc(DWORD fourcc)
 114 {
 115     if (!fourcc) return "''";
 116     return wine_dbg_sprintf("'%c%c%c%c'", (char)(fourcc), (char)(fourcc >> 8),
 117             (char)(fourcc >> 16), (char)(fourcc >> 24));
 118 }