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/*************************************************************************** |
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* * |
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* libgig - C++ cross-platform Gigasampler format file loader library * |
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* * |
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* Copyright (C) 2003, 2004 by Christian Schoenebeck * |
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* <cuse@users.sourceforge.net> * |
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* * |
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* This library is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This library is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this library; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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|
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#ifndef __DLS_H__ |
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#define __DLS_H__ |
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|
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#include "RIFF.h" |
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|
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#if WORDS_BIGENDIAN |
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# define LIST_TYPE_INFO 0x494E464F |
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# define LIST_TYPE_WVPL 0x7776706C |
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# define LIST_TYPE_DWPL 0x6477706C ///< Seen on some files instead of a wvpl list chunk. |
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# define LIST_TYPE_WAVE 0x77617665 |
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# define LIST_TYPE_LINS 0X6C696E73 |
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# define LIST_TYPE_INS 0X696E7320 |
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# define LIST_TYPE_LRGN 0x6C72676E |
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# define LIST_TYPE_LART 0x6C617274 |
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# define LIST_TYPE_LAR2 0x6C617232 |
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# define LIST_TYPE_RGN 0x72676E20 |
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# define LIST_TYPE_RGN2 0x72676E32 |
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# define LIST_TYPE_ART1 0x61727431 |
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# define LIST_TYPE_ART2 0x61727432 |
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# define CHUNK_ID_IARL 0x4941524C |
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# define CHUNK_ID_IART 0x49415254 |
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# define CHUNK_ID_ICMS 0x49434D53 |
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# define CHUNK_ID_ICMT 0x49434D54 |
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# define CHUNK_ID_ICOP 0x49434F50 |
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# define CHUNK_ID_ICRD 0x49435244 |
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# define CHUNK_ID_IENG 0x49454E47 |
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# define CHUNK_ID_IGNR 0x49474E52 |
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# define CHUNK_ID_IKEY 0x494B4559 |
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# define CHUNK_ID_IMED 0x494D4544 |
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# define CHUNK_ID_INAM 0x494E414D |
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# define CHUNK_ID_IPRD 0x49505244 |
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# define CHUNK_ID_ISBJ 0x4953424A |
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# define CHUNK_ID_ISFT 0x49534654 |
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# define CHUNK_ID_ISRC 0x49535243 |
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# define CHUNK_ID_ISRF 0x49535246 |
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# define CHUNK_ID_ITCH 0x49544348 |
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# define CHUNK_ID_VERS 0x76657273 |
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# define CHUNK_ID_DLID 0x646C6964 |
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# define CHUNK_ID_FMT 0x666D7420 |
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# define CHUNK_ID_DATA 0x64617461 |
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# define CHUNK_ID_INSH 0x696E7368 |
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# define CHUNK_ID_RGNH 0x72676E68 |
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# define CHUNK_ID_WLNK 0x776C6E6B |
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# define CHUNK_ID_PTBL 0x7074626C |
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# define CHUNK_ID_WSMP 0x77736D70 |
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# define CHUNK_ID_COLH 0x636F6C68 |
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#else // little endian |
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# define LIST_TYPE_INFO 0x4F464E49 |
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# define LIST_TYPE_WVPL 0x6C707677 |
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# define LIST_TYPE_DWPL 0x6C707764 ///< Seen on some files instead of a wvpl list chunk. |
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# define LIST_TYPE_WAVE 0x65766177 |
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# define LIST_TYPE_LINS 0X736E696C |
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# define LIST_TYPE_INS 0X20736E69 |
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# define LIST_TYPE_LRGN 0x6E67726C |
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# define LIST_TYPE_LART 0x7472616C |
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# define LIST_TYPE_LAR2 0x3272616C |
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# define LIST_TYPE_RGN 0x206E6772 |
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# define LIST_TYPE_RGN2 0x326E6772 |
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# define LIST_TYPE_ART1 0x31747261 |
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# define LIST_TYPE_ART2 0x32747261 |
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# define CHUNK_ID_IARL 0x4C524149 |
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# define CHUNK_ID_IART 0x54524149 |
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# define CHUNK_ID_ICMS 0x534D4349 |
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# define CHUNK_ID_ICMT 0x544D4349 |
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# define CHUNK_ID_ICOP 0x504F4349 |
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# define CHUNK_ID_ICRD 0x44524349 |
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# define CHUNK_ID_IENG 0x474E4549 |
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# define CHUNK_ID_IGNR 0x524E4749 |
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# define CHUNK_ID_IKEY 0x59454B49 |
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# define CHUNK_ID_IMED 0x44525049 |
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# define CHUNK_ID_INAM 0x4D414E49 |
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# define CHUNK_ID_IPRD 0x44525049 |
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# define CHUNK_ID_ISBJ 0x4A425349 |
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# define CHUNK_ID_ISFT 0x54465349 |
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# define CHUNK_ID_ISRC 0x43525349 |
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# define CHUNK_ID_ISRF 0x46525349 |
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# define CHUNK_ID_ITCH 0x48435449 |
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# define CHUNK_ID_VERS 0x73726576 |
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# define CHUNK_ID_DLID 0x64696C64 |
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# define CHUNK_ID_FMT 0x20746D66 |
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# define CHUNK_ID_DATA 0x61746164 |
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# define CHUNK_ID_INSH 0x68736E69 |
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# define CHUNK_ID_RGNH 0x686E6772 |
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# define CHUNK_ID_WLNK 0x6B6E6C77 |
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# define CHUNK_ID_PTBL 0x6C627470 |
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# define CHUNK_ID_WSMP 0x706D7377 |
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# define CHUNK_ID_COLH 0x686C6F63 |
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#endif // WORDS_BIGENDIAN |
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|
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#define WAVE_FORMAT_PCM 0x0001 |
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|
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#define DRUM_TYPE_MASK 0x00000001 |
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|
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#define F_RGN_OPTION_SELFNONEXCLUSIVE 0x0001 |
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|
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#define F_WAVELINK_PHASE_MASTER 0x0001 |
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#define F_WAVELINK_MULTICHANNEL 0x0002 |
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|
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#define F_WSMP_NO_TRUNCATION 0x0001 |
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#define F_WSMP_NO_COMPRESSION 0x0002 |
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|
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#define MIDI_BANK_COARSE(x) ((x & 0x00007F00) >> 8) // CC0 |
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#define MIDI_BANK_FINE(x) (x & 0x0000007F) // CC32 |
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#define MIDI_BANK_MERGE(coarse, fine) ((((uint16_t) coarse) << 7) | fine) // CC0 + CC32 |
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#define CONN_TRANSFORM_SRC(x) ((x >> 10) & 0x000F) |
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#define CONN_TRANSFORM_CTL(x) ((x >> 4) & 0x000F) |
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#define CONN_TRANSFORM_DST(x) (x & 0x000F) |
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#define CONN_TRANSFORM_BIPOLAR_SRC(x) (x & 0x4000) |
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#define CONN_TRANSFORM_BIPOLAR_CTL(x) (x & 0x0100) |
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#define CONN_TRANSFORM_INVERT_SRC(x) (x & 0x8000) |
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#define CONN_TRANSFORM_INVERT_CTL(x) (x & 0x0200) |
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|
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|
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//TODO: no support for conditional chunks <cdl> yet |
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|
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/** DLS specific classes and definitions */ |
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namespace DLS { |
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|
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typedef std::string String; |
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|
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/** Quadtuple version number ("major.minor.release.build"). */ |
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struct version_t { |
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uint16_t minor; |
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uint16_t major; |
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uint16_t build; |
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uint16_t release; |
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}; |
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|
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/** Every subject of an DLS file and the file itself can have an unique, computer generated ID. */ |
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struct dlsid_t { |
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uint32_t ulData1; |
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uint16_t usData2; |
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uint16_t usData3; |
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uint8_t abData[8]; |
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}; |
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|
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/** Connection Sources */ |
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typedef enum { |
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// Modulator Sources |
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conn_src_none = 0x0000, |
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conn_src_lfo = 0x0001, |
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conn_src_keyonvelocity = 0x0002, |
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conn_src_keynumber = 0x0003, |
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conn_src_eg1 = 0x0004, |
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conn_src_eg2 = 0x0005, |
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conn_src_pitchwheel = 0x0006, |
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conn_src_polypressure = 0x0007, |
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conn_src_channelpressure = 0x0008, |
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conn_src_vibrato = 0x0009, |
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// MIDI Controller Sources |
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conn_src_cc1 = 0x0081, |
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conn_src_cc7 = 0x0087, |
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conn_src_cc10 = 0x008A, |
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conn_src_cc11 = 0x008B, |
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conn_src_cc91 = 0x00DB, |
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conn_src_cc93 = 0x00DD, |
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// Registered Parameter Numbers |
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conn_src_rpn0 = 0x0100, |
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conn_src_rpn1 = 0x0101, |
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conn_src_rpn2 = 0x0102 |
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} conn_src_t; |
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|
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/** Connection Destinations */ |
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typedef enum { |
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// Generic Destinations |
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conn_dst_none = 0x0000, |
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conn_dst_gain = 0x0001, |
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conn_dst_reserved = 0x0002, |
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conn_dst_pitch = 0x0003, |
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conn_dst_pan = 0x0004, |
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conn_dst_keynumber = 0x0005, |
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// Channel Output Destinations |
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conn_dst_left = 0x0010, |
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conn_dst_right = 0x0011, |
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conn_dst_center = 0x0012, |
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conn_dst_lfe_channel = 0x0013, |
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conn_dst_leftrear = 0x0014, |
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conn_dst_rightrear = 0x0015, |
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conn_dst_chorus = 0x0080, |
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conn_dst_reverb = 0x0081, |
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// Modulator LFO Destinations |
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conn_dst_lfo_frequency = 0x0104, |
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conn_dst_lfo_startdelay = 0x0105, |
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// Vibrato LFO Destinations |
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conn_dst_vib_frequency = 0x0114, |
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conn_dst_vib_startdelay = 0x0115, |
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// EG Destinations |
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conn_dst_eg1_attacktime = 0x0206, |
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conn_dst_eg1_decaytime = 0x0207, |
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conn_dst_eg1_reserved = 0x0208, |
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conn_dst_eg1_releasetime = 0x0209, |
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conn_dst_eg1_sustainlevel = 0x020A, |
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conn_dst_eg1_delaytime = 0x020B, |
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conn_dst_eg1_holdtime = 0x020C, |
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conn_dst_eg1_shutdowntime = 0x020D, |
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conn_dst_eg2_attacktime = 0x030A, |
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conn_dst_eg2_decaytime = 0x030B, |
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conn_dst_eg2_reserved = 0x030C, |
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conn_dst_eg2_releasetime = 0x030D, |
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conn_dst_eg2_sustainlevel = 0x030E, |
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conn_dst_eg2_delaytime = 0x030F, |
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conn_dst_eg2_holdtime = 0x0310, |
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// Filter Destinations |
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conn_dst_filter_cutoff = 0x0500, |
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conn_dst_filter_q = 0x0501 |
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} conn_dst_t; |
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|
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/** Connection Transforms */ |
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typedef enum { |
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conn_trn_none = 0x0000, |
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conn_trn_concave = 0x0001, |
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conn_trn_convex = 0x0002, |
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conn_trn_switch = 0x0003 |
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} conn_trn_t; |
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|
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/** Lower and upper limit of a range. */ |
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struct range_t { |
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uint16_t low; ///< Low value of range. |
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uint16_t high; ///< High value of range. |
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}; |
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|
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/** Defines Sample Loop Points. */ |
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struct sample_loop_t { |
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uint32_t Size; |
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uint32_t LoopType; |
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uint32_t LoopStart; |
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uint32_t LoopLength; |
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}; |
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|
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// just symbol prototyping |
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class File; |
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class Instrument; |
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class Region; |
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class Sample; |
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|
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/** Defines a connection within the synthesis model. */ |
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class Connection { |
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public: |
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conn_src_t Source; |
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conn_trn_t SourceTransform; |
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bool SourceInvert; |
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bool SourceBipolar; |
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conn_src_t Control; |
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conn_trn_t ControlTransform; |
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bool ControlInvert; |
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bool ControlBipolar; |
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conn_dst_t Destination; |
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conn_trn_t DestinationTransform; |
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uint32_t Scale; |
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protected: |
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struct conn_block_t { |
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uint16_t source; |
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uint16_t control; |
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uint16_t destination; |
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uint16_t transform; |
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uint32_t scale; |
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}; |
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Connection() {}; |
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void Init(conn_block_t* Header); |
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virtual ~Connection() {}; |
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friend class Articulation; |
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}; |
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|
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/** Provides access to the defined connections used for the synthesis model. */ |
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class Articulation { |
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public: |
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Connection* pConnections; ///< Points to the beginning of a <i>Connection</i> array. |
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uint32_t Connections; ///< Reflects the number of Connections. |
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Articulation(RIFF::List* artList); |
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~Articulation(); |
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}; |
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|
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/** Abstract base class for classes that provide articulation information (thus for <i>Instrument</i> and <i>Region</i> class). */ |
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class Articulator { |
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public: |
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Articulator(RIFF::List* ParentList); |
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Articulation* GetFirstArticulation(); |
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Articulation* GetNextArticulation(); |
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protected: |
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typedef std::list<Articulation*> ArticulationList; |
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RIFF::List* pParentList; |
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ArticulationList* pArticulations; |
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ArticulationList::iterator ArticulationsIterator; |
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|
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void LoadArticulations(); |
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~Articulator(); |
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}; |
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|
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/** Optional information for DLS files, instruments, samples, etc. */ |
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class Info { |
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public: |
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String Name; ///< <INAM-ck>. Stores the title of the subject of the file, such as, Seattle From Above. |
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String ArchivalLocation; ///< <IARL-ck>. Indicates where the subject of the file is stored. |
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String CreationDate; ///< <ICRD-ck>. Specifies the date the subject of the file was created. List dates in yyyy-mm-dd format. |
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String Comments; ///< <ICMT-ck>. Provides general comments about the file or the subject of the file. Sentences might end with semicolon. |
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String Product; ///< <IPRD-ck>. Specifies the name of the title the file was originally intended for, such as World Ruler V. |
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String Copyright; ///< <ICOP-ck>. Records the copyright information for the file. |
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String Artists; ///< <IART-ck>. Lists the artist of the original subject of the file. |
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String Genre; ///< <IGNR-ck>. Descirbes the original work, such as, Jazz, Classic, Rock, Techno, Rave, etc. |
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String Keywords; ///< <IKEY-ck>. Provides a list of keywords that refer to the file or subject of the file. Keywords are separated with semicolon and blank, e.g., FX; death; murder. |
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String Engineer; ///< <IENG-ck>. Stores the name of the engineer who worked on the file. Multiple engineer names are separated by semicolon and blank, e.g, Smith, John; Adams, Joe. |
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String Technician; ///< <ITCH-ck>. Identifies the technician who sampled the subject file. |
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String Software; ///< <ISFT-ck>. Identifies the name of the sofware package used to create the file. |
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String Medium; ///< <IMED-ck>. Describes the original subject of the file, such as, record, CD, and so forth. |
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String Source; ///< <ISRC-ck>. Identifies the name of the person or organization who supplied the original subject of the file. |
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String SourceForm; ///< <ISRF-ck>. Identifies the original form of the material that was digitized, such as record, sampling CD, TV sound track. This is not neccessarily the same as <i>Medium</i>. |
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String Commissioned; ///< <ICMS-ck>. Lists the name of the person or organization that commissioned the subject of the file, e.g., Pope Julian II. |
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|
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Info(RIFF::List* list); |
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private: |
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inline void LoadString(uint32_t ChunkID, RIFF::List* lstINFO, String& s) { |
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RIFF::Chunk* ck = lstINFO->GetSubChunk(ChunkID); |
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if (ck) { |
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// TODO: no check for ZSTR terminated strings yet |
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s = (char*) ck->LoadChunkData(); |
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ck->ReleaseChunkData(); |
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} |
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} |
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}; |
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|
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/** Abstract base class which encapsulates data structures which all DLS resources are able to provide. */ |
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class Resource { |
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public: |
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Info* pInfo; ///< Points (in any case) to an <i>Info</i> object, providing additional, optional infos and comments. |
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dlsid_t* pDLSID; ///< Points to a <i>dlsid_t</i> structure if the file provided a DLS ID else is <i>NULL</i>. |
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|
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Resource* GetParent() { return pParent; }; |
351 |
protected: |
352 |
Resource* pParent; |
353 |
|
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Resource(Resource* Parent, RIFF::List* lstResource); |
355 |
~Resource(); |
356 |
}; |
357 |
|
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/** Abstract base class which provides mandatory informations about sample players in general. */ |
359 |
class Sampler { |
360 |
public: |
361 |
uint8_t UnityNote; |
362 |
int16_t FineTune; |
363 |
int32_t Gain; |
364 |
bool NoSampleDepthTruncation; |
365 |
bool NoSampleCompression; |
366 |
uint32_t SampleLoops; ///< Reflects the number of sample loops. |
367 |
sample_loop_t* pSampleLoops; ///< Points to the beginning of a sample loop array, or is NULL if there are no loops defined. |
368 |
protected: |
369 |
uint32_t SamplerOptions; |
370 |
Sampler(RIFF::List* ParentList); |
371 |
~Sampler(); |
372 |
}; |
373 |
|
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/** Encapsulates sample waves used for playback. */ |
375 |
class Sample : public Resource { |
376 |
public: |
377 |
uint16_t FormatTag; ///< Format ID of the waveform data (should be WAVE_FORMAT_PCM for DLS1 compliant files). |
378 |
uint16_t Channels; ///< Number of channels represented in the waveform data, e.g. 1 for mono, 2 for stereo (). |
379 |
uint32_t SamplesPerSecond; ///< Sampling rate at which each channel should be played. |
380 |
uint32_t AverageBytesPerSecond; ///< The average number of bytes per second at which the waveform data should be transferred (Playback software can estimate the buffer size using this value). |
381 |
uint16_t BlockAlign; ///< The block alignment (in bytes) of the waveform data. Playback software needs to process a multiple of <i>BlockAlign</i> bytes of data at a time, so the value of <i>BlockAlign</i> can be used for buffer alignment. |
382 |
uint16_t BitDepth; ///< Size of each sample per channel (only if known sample data format is used, 0 otherwise). |
383 |
unsigned long SamplesTotal; ///< Reflects total number of samples (only if known sample data format is used, 0 otherwise). |
384 |
uint FrameSize; ///< Reflects the size (in bytes) of one single sample (only if known sample data format is used, 0 otherwise). |
385 |
|
386 |
void* LoadSampleData(); ///< Load sample data into RAM. Returns a pointer to the data in RAM on success, <i>NULL</i> otherwise. |
387 |
void ReleaseSampleData(); ///< Release the samples once you used them if you don't want to be bothered to. |
388 |
unsigned long SetPos(unsigned long SampleCount, RIFF::stream_whence_t Whence = RIFF::stream_start); |
389 |
unsigned long Read(void* pBuffer, unsigned long SampleCount); |
390 |
protected: |
391 |
RIFF::Chunk* pCkData; |
392 |
RIFF::Chunk* pCkFormat; |
393 |
unsigned long ulWavePoolOffset; // needed for comparison with the wave pool link table, thus the link to instruments |
394 |
|
395 |
Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset); |
396 |
friend class File; |
397 |
friend class Region; // Region has to compare the wave pool offset to get its sample |
398 |
}; |
399 |
|
400 |
/** Defines <i>Region</i> information of an <i>Instrument</i>. */ |
401 |
class Region : public Resource, public Articulator, public Sampler { |
402 |
public: |
403 |
range_t KeyRange; |
404 |
range_t VelocityRange; |
405 |
uint16_t KeyGroup; |
406 |
uint16_t Layer; |
407 |
bool SelfNonExclusive; |
408 |
bool PhaseMaster; |
409 |
uint16_t PhaseGroup; |
410 |
bool MultiChannel; |
411 |
uint32_t Channel; |
412 |
|
413 |
Sample* GetSample(); |
414 |
protected: |
415 |
RIFF::List* pCkRegion; |
416 |
uint32_t WavePoolTableIndex; // index in the wave pool table to the sample wave this region is linked to |
417 |
Sample* pSample; // every region refers to exactly one sample |
418 |
|
419 |
Region(Instrument* pInstrument, RIFF::List* rgnList); |
420 |
~Region(); |
421 |
friend class Instrument; |
422 |
}; |
423 |
|
424 |
/** Provides all neccessary information for the synthesis of a DLS <i>Instrument</i>. */ |
425 |
class Instrument : public Resource, public Articulator { |
426 |
public: |
427 |
bool IsDrum; ///< Indicates if the <i>Instrument</i> is a drum type, as they differ in the synthesis model of DLS from melodic instruments. |
428 |
uint16_t MIDIBank; ///< Reflects combination of <i>MIDIBankCoarse</i> and <i>MIDIBankFine</i> (bank 1 - bank 16384). |
429 |
uint8_t MIDIBankCoarse; ///< Reflects the MIDI Bank number for MIDI Control Change 0 (bank 1 - 128). |
430 |
uint8_t MIDIBankFine; ///< Reflects the MIDI Bank number for MIDI Control Change 32 (bank 1 - 128). |
431 |
uint32_t MIDIProgram; ///< Specifies the MIDI Program Change Number this Instrument should be assigned to. |
432 |
uint32_t Regions; ///< Reflects the number of <i>Region</i> defintions this Instrument has. |
433 |
|
434 |
Region* GetFirstRegion(); |
435 |
Region* GetNextRegion(); |
436 |
protected: |
437 |
typedef std::list<Region*> RegionList; |
438 |
struct midi_locale_t { |
439 |
uint32_t bank; |
440 |
uint32_t instrument; |
441 |
}; |
442 |
|
443 |
RIFF::List* pCkInstrument; |
444 |
RegionList* pRegions; |
445 |
RegionList::iterator RegionsIterator; |
446 |
|
447 |
Instrument(File* pFile, RIFF::List* insList); |
448 |
void LoadRegions(); |
449 |
~Instrument(); |
450 |
friend class File; |
451 |
}; |
452 |
|
453 |
/** Parses DLS Level 1 and 2 compliant files and provides abstract access to the data. */ |
454 |
class File : public Resource { |
455 |
public: |
456 |
version_t* pVersion; ///< Points to a <i>version_t</i> structure if the file provided a version number else is set to <i>NULL</i>. |
457 |
uint32_t Instruments; ///< Reflects the number of available <i>Instrument</i> objects. |
458 |
|
459 |
File(RIFF::File* pRIFF); |
460 |
Sample* GetFirstSample(); ///< Returns a pointer to the first <i>Sample</i> object of the file, <i>NULL</i> otherwise. |
461 |
Sample* GetNextSample(); ///< Returns a pointer to the next <i>Sample</i> object of the file, <i>NULL</i> otherwise. |
462 |
Instrument* GetFirstInstrument(); ///< Returns a pointer to the first <i>Instrument</i> object of the file, <i>NULL</i> otherwise. |
463 |
Instrument* GetNextInstrument(); ///< Returns a pointer to the next <i>Instrument</i> object of the file, <i>NULL</i> otherwise. |
464 |
~File(); |
465 |
protected: |
466 |
typedef std::list<Sample*> SampleList; |
467 |
typedef std::list<Instrument*> InstrumentList; |
468 |
|
469 |
RIFF::File* pRIFF; |
470 |
SampleList* pSamples; |
471 |
SampleList::iterator SamplesIterator; |
472 |
InstrumentList* pInstruments; |
473 |
InstrumentList::iterator InstrumentsIterator; |
474 |
uint32_t WavePoolCount; |
475 |
uint32_t* pWavePoolTable; |
476 |
|
477 |
void LoadSamples(); |
478 |
void LoadInstruments(); |
479 |
friend class Region; // Region has to look in the wave pool table to get its sample |
480 |
}; |
481 |
|
482 |
/** Will be thrown whenever a DLS specific error occurs while trying to access a DLS File. */ |
483 |
class Exception : public RIFF::Exception { |
484 |
public: |
485 |
Exception(String Message); |
486 |
void PrintMessage(); |
487 |
}; |
488 |
|
489 |
} // namespace DLS |
490 |
|
491 |
#endif // __DLS_H__ |