1 /*---------------------------------------------------------------------------*
2   Project:  NintendoWare
3   File:     snd_StreamSoundFileReader.h
4 
5   Copyright (C)2009-2011 Nintendo/HAL Laboratory, Inc.  All rights reserved.
6 
7   These coded instructions, statements, and computer programs contain proprietary
8   information of Nintendo and/or its licensed developers and are protected by
9   national and international copyright laws. They may not be disclosed to third
10   parties or copied or duplicated in any form, in whole or in part, without the
11   prior written consent of Nintendo.
12 
13   The content herein is highly confidential and should be handled accordingly.
14 
15   $Revision: 31311 $
16  *---------------------------------------------------------------------------*/
17 
18 #ifndef NW_SND_STREAM_SOUND_FILE_READER_H_
19 #define NW_SND_STREAM_SOUND_FILE_READER_H_
20 
21 #include <nw/snd/snd_StreamSoundFile.h>
22 #include <nw/snd/snd_Global.h>
23 
24 namespace nw {
25 namespace snd {
26 namespace internal {
27 
28 class StreamSoundFileReader
29 {
30 public:
31     struct TrackInfo
32     {
33         u8 volume;
34         u8 pan;
35         u8 channelCount;
36         u8 globalChannelIndex[ WAVE_CHANNEL_MAX ];
37     };
38 
39     StreamSoundFileReader();
40     void Initialize( const void* streamSoundFile );
41     void Finalize();
IsAvailable()42     bool IsAvailable() const { return m_pHeader != NULL; }
43 
44     bool IsValidFileHeader( const void* streamSoundFile ) const;
45 
46     bool ReadStreamSoundInfo( StreamSoundFile::StreamSoundInfo* strmInfo ) const;
47     bool ReadStreamTrackInfo( TrackInfo* trackInfo, int trackIndex ) const;
48     bool ReadDspAdpcmChannelInfo(
49             DspAdpcmParam* param,
50             DspAdpcmLoopParam* loopParam,
51             int channelIndex ) const;
52 
GetChannelCount()53     NW_INLINE u32 GetChannelCount() const
54     {
55         NW_NULL_ASSERT( m_pInfoBlockBody );
56         return m_pInfoBlockBody->GetChannelInfoTable()->GetChannelCount();
57     }
58 
GetTrackCount()59     NW_INLINE u32 GetTrackCount() const
60     {
61         NW_NULL_ASSERT( m_pInfoBlockBody );
62         return m_pInfoBlockBody->GetTrackInfoTable()->GetTrackCount();
63     }
64 
GetSeekBlockOffset()65     NW_INLINE u32 GetSeekBlockOffset() const
66     {
67         if ( IsAvailable() )
68         {
69             return m_pHeader->GetSeekBlockOffset();
70         }
71         return 0;
72     }
73 
GetDataBlockOffset()74     NW_INLINE u32 GetDataBlockOffset() const
75     {
76         if ( IsAvailable() )
77         {
78             return m_pHeader->GetDataBlockOffset();
79         }
80         return 0;
81     }
82 private:
83     const StreamSoundFile::FileHeader*      m_pHeader;
84     const StreamSoundFile::InfoBlockBody*   m_pInfoBlockBody;
85 };
86 
87 } // namespace nw::snd::internal
88 } // namespace nw::snd
89 } // namespace nw
90 
91 
92 #endif /* NW_SND_STREAM_SOUND_FILE_READER_H_ */
93 
94