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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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196 lines
6.3 KiB
C
196 lines
6.3 KiB
C
/* Extended Module Player
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* Copyright (C) 1996-2021 Claudio Matsuoka and Hipolito Carraro Jr
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef LIBXMP_LOADERS_IT_H
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#define LIBXMP_LOADERS_IT_H
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#include "loader.h"
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/* IT flags */
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#define IT_STEREO 0x01
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#define IT_VOL_OPT 0x02 /* Not recognized */
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#define IT_USE_INST 0x04
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#define IT_LINEAR_FREQ 0x08
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#define IT_OLD_FX 0x10
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#define IT_LINK_GXX 0x20
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#define IT_MIDI_WHEEL 0x40
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#define IT_MIDI_CONFIG 0x80
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/* IT special */
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#define IT_HAS_MSG 0x01
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#define IT_EDIT_HISTORY 0x02
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#define IT_HIGHLIGHTS 0x04
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#define IT_SPEC_MIDICFG 0x08
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/* IT instrument flags */
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#define IT_INST_SAMPLE 0x01
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#define IT_INST_16BIT 0x02
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#define IT_INST_STEREO 0x04
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#define IT_INST_LOOP 0x10
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#define IT_INST_SLOOP 0x20
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#define IT_INST_BLOOP 0x40
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#define IT_INST_BSLOOP 0x80
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/* IT sample flags */
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#define IT_SMP_SAMPLE 0x01
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#define IT_SMP_16BIT 0x02
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#define IT_SMP_STEREO 0x04 /* unsupported */
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#define IT_SMP_COMP 0x08 /* unsupported */
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#define IT_SMP_LOOP 0x10
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#define IT_SMP_SLOOP 0x20
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#define IT_SMP_BLOOP 0x40
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#define IT_SMP_BSLOOP 0x80
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/* IT sample conversion flags */
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#define IT_CVT_SIGNED 0x01
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#define IT_CVT_BIGEND 0x02 /* 'safe to ignore' according to ittech.txt */
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#define IT_CVT_DIFF 0x04 /* Compressed sample flag */
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#define IT_CVT_BYTEDIFF 0x08 /* 'safe to ignore' according to ittech.txt */
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#define IT_CVT_12BIT 0x10 /* 'safe to ignore' according to ittech.txt */
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#define IT_CVT_ADPCM 0xff /* Special: always indicates Modplug ADPCM4 */
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/* IT envelope flags */
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#define IT_ENV_ON 0x01
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#define IT_ENV_LOOP 0x02
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#define IT_ENV_SLOOP 0x04
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#define IT_ENV_CARRY 0x08
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#define IT_ENV_FILTER 0x80
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struct it_file_header {
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uint32 magic; /* 'IMPM' */
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uint8 name[26]; /* ASCIIZ Song name */
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uint8 hilite_min; /* Pattern editor highlight */
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uint8 hilite_maj; /* Pattern editor highlight */
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uint16 ordnum; /* Number of orders (must be even) */
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uint16 insnum; /* Number of instruments */
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uint16 smpnum; /* Number of samples */
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uint16 patnum; /* Number of patterns */
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uint16 cwt; /* Tracker ID and version */
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uint16 cmwt; /* Format version */
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uint16 flags; /* Flags */
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uint16 special; /* More flags */
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uint8 gv; /* Global volume */
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uint8 mv; /* Master volume */
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uint8 is; /* Initial speed */
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uint8 it; /* Initial tempo */
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uint8 sep; /* Panning separation */
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uint8 pwd; /* Pitch wheel depth */
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uint16 msglen; /* Message length */
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uint32 msgofs; /* Message offset */
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uint32 rsvd; /* Reserved */
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uint8 chpan[64]; /* Channel pan settings */
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uint8 chvol[64]; /* Channel volume settings */
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};
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struct it_instrument1_header {
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uint32 magic; /* 'IMPI' */
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uint8 dosname[12]; /* DOS filename */
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uint8 zero; /* Always zero */
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uint8 flags; /* Instrument flags */
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uint8 vls; /* Volume loop start */
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uint8 vle; /* Volume loop end */
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uint8 sls; /* Sustain loop start */
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uint8 sle; /* Sustain loop end */
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uint16 rsvd1; /* Reserved */
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uint16 fadeout; /* Fadeout (release) */
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uint8 nna; /* New note action */
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uint8 dnc; /* Duplicate note check */
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uint16 trkvers; /* Tracker version */
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uint8 nos; /* Number of samples */
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uint8 rsvd2; /* Reserved */
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uint8 name[26]; /* ASCIIZ Instrument name */
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uint8 rsvd3[6]; /* Reserved */
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uint8 keys[240];
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uint8 epoint[200];
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uint8 enode[50];
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};
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struct it_instrument2_header {
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uint32 magic; /* 'IMPI' */
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uint8 dosname[12]; /* DOS filename */
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uint8 zero; /* Always zero */
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uint8 nna; /* New Note Action */
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uint8 dct; /* Duplicate Check Type */
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uint8 dca; /* Duplicate Check Action */
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uint16 fadeout;
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uint8 pps; /* Pitch-Pan Separation */
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uint8 ppc; /* Pitch-Pan Center */
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uint8 gbv; /* Global Volume */
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uint8 dfp; /* Default pan */
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uint8 rv; /* Random volume variation */
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uint8 rp; /* Random pan variation */
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uint16 trkvers; /* Not used: tracked version */
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uint8 nos; /* Not used: number of samples */
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uint8 rsvd1; /* Reserved */
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uint8 name[26]; /* ASCIIZ Instrument name */
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uint8 ifc; /* Initial filter cutoff */
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uint8 ifr; /* Initial filter resonance */
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uint8 mch; /* MIDI channel */
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uint8 mpr; /* MIDI program */
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uint16 mbnk; /* MIDI bank */
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uint8 keys[240];
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};
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struct it_envelope_node {
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int8 y;
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uint16 x;
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};
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struct it_envelope {
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uint8 flg; /* Flags */
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uint8 num; /* Number of node points */
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uint8 lpb; /* Loop beginning */
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uint8 lpe; /* Loop end */
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uint8 slb; /* Sustain loop beginning */
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uint8 sle; /* Sustain loop end */
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struct it_envelope_node node[25];
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uint8 unused;
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};
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struct it_sample_header {
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uint32 magic; /* 'IMPS' */
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uint8 dosname[12]; /* DOS filename */
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uint8 zero; /* Always zero */
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uint8 gvl; /* Global volume for instrument */
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uint8 flags; /* Sample flags */
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uint8 vol; /* Volume */
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uint8 name[26]; /* ASCIIZ sample name */
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uint8 convert; /* Sample flags */
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uint8 dfp; /* Default pan */
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uint32 length; /* Length */
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uint32 loopbeg; /* Loop begin */
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uint32 loopend; /* Loop end */
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uint32 c5spd; /* C 5 speed */
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uint32 sloopbeg; /* SusLoop begin */
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uint32 sloopend; /* SusLoop end */
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uint32 sample_ptr; /* Sample pointer */
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uint8 vis; /* Vibrato speed */
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uint8 vid; /* Vibrato depth */
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uint8 vir; /* Vibrato rate */
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uint8 vit; /* Vibrato waveform */
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};
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int itsex_decompress8(HIO_HANDLE *src, uint8 *dst, int len, int it215);
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int itsex_decompress16(HIO_HANDLE *src, int16 *dst, int len, int it215);
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#endif /* LIBXMP_LOADERS_IT_H */
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