| | 1 | // ///////////////////////////////////////////////////////////////////////////// |
| | 2 | // Name: mmriff.h |
| | 3 | // Purpose: wxMMedia |
| | 4 | // Author: Guilhem Lavaux |
| | 5 | // Created: 1998 |
| | 6 | // Updated: |
| | 7 | // Copyright: (C) 1998, Guilhem Lavaux |
| | 8 | // License: wxWindows license |
| | 9 | // ///////////////////////////////////////////////////////////////////////////// |
| | 10 | /* Real -*- C++ -*- */ |
| | 11 | #ifndef __MM_riff_H__ |
| | 12 | #define __MM_riff_H__ |
| | 13 | #ifdef __GNUG__ |
| | 14 | #pragma interface |
| | 15 | #endif |
| | 16 | |
| | 17 | #include "mmtype.h" |
| | 18 | #include "mmfile.h" |
| | 19 | |
| | 20 | #define RIFF_READ 0 |
| | 21 | #define RIFF_WRITE 1 |
| | 22 | #define INVALID_CHUNK_LEN ((wxUint32)-1) |
| | 23 | |
| | 24 | /// |
| | 25 | class wxRiffCodec { |
| | 26 | public: |
| | 27 | /// |
| | 28 | wxRiffCodec(); |
| | 29 | /// |
| | 30 | wxRiffCodec(wxOutputStream& s); |
| | 31 | /// |
| | 32 | wxRiffCodec(wxInputStream& s); |
| | 33 | /// |
| | 34 | virtual ~wxRiffCodec(); |
| | 35 | |
| | 36 | /// |
| | 37 | void SetFile(wxInputStream& s) { cout << "RIFF:SetFile(i)" << endl; riff_i_stream = &s; riff_o_stream = NULL; } |
| | 38 | /// |
| | 39 | void SetFile(wxOutputStream& s) { cout << "RIFF::SetFile(o)" << endl; riff_i_stream = NULL; riff_o_stream = &s; } |
| | 40 | |
| | 41 | /// |
| | 42 | bool Read32(wxUint32& i32); |
| | 43 | /// |
| | 44 | bool Read16(wxUint16& i16); |
| | 45 | /// |
| | 46 | bool ReadData(void *data, wxUint32 size); |
| | 47 | /// |
| | 48 | bool Skip(wxUint32 skip); |
| | 49 | |
| | 50 | /// |
| | 51 | bool Write32(wxUint32 i32); |
| | 52 | /// |
| | 53 | bool Write16(wxUint16 i16); |
| | 54 | /// |
| | 55 | bool WriteData(void *data, wxUint32 size); |
| | 56 | |
| | 57 | /// |
| | 58 | inline wxUint32 GetChunkLength() const { return chunk_length; } |
| | 59 | /// |
| | 60 | inline const wxString& GetChunkName() const { return m_chunk; } |
| | 61 | |
| | 62 | /// |
| | 63 | bool RiffReset(wxUint8 state); |
| | 64 | |
| | 65 | /// |
| | 66 | bool FindChunk(const wxString& name = "", bool from_here = FALSE); |
| | 67 | /// |
| | 68 | bool CreateChunk(const wxString& name, wxUint32 chunk_size); |
| | 69 | |
| | 70 | /// |
| | 71 | inline wxMMFileError GetError() const { return riff_error; } |
| | 72 | |
| | 73 | protected: |
| | 74 | wxInputStream *riff_i_stream; |
| | 75 | wxOutputStream *riff_o_stream; |
| | 76 | wxUint32 chunk_length; |
| | 77 | wxMMFileError riff_error; |
| | 78 | wxString m_chunk; |
| | 79 | }; |
| | 80 | |
| | 81 | #endif |
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