diff options
Diffstat (limited to 'plugins/dumb/dumb-kode54/include/internal/it.h')
-rw-r--r-- | plugins/dumb/dumb-kode54/include/internal/it.h | 1774 |
1 files changed, 892 insertions, 882 deletions
diff --git a/plugins/dumb/dumb-kode54/include/internal/it.h b/plugins/dumb/dumb-kode54/include/internal/it.h index fd7cb8b5..7f066882 100644 --- a/plugins/dumb/dumb-kode54/include/internal/it.h +++ b/plugins/dumb/dumb-kode54/include/internal/it.h @@ -1,882 +1,892 @@ -/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * internal/it.h - Internal stuff for IT playback / / \ \
- * and MOD/XM/S3M conversion. | < / \_
- * | \/ /\ /
- * This header file provides access to the \_ / > /
- * internal structure of DUMB, and is liable | \ / /
- * to change, mutate or cease to exist at any | ' /
- * moment. Include it at your own peril. \__/
- *
- * ...
- *
- * Seriously. You don't need access to anything in this file. All right, you
- * probably do actually. But if you use it, you will be relying on a specific
- * version of DUMB, so please check DUMB_VERSION defined in dumb.h. Please
- * contact the authors so that we can provide a public API for what you need.
- */
-
-#ifndef INTERNAL_IT_H
-#define INTERNAL_IT_H
-
-
-#define BIT_ARRAY_BULLSHIT
-
-#include <stddef.h>
-
-#include "barray.h"
-
-
-/** TO DO: THINK ABOUT THE FOLLOWING:
-
-sigdata->flags & IT_COMPATIBLE_GXX
-
- Bit 5: On = Link Effect G's memory with Effect E/F. Also
- Gxx with an instrument present will cause the
- envelopes to be retriggered. If you change a
- sample on a row with Gxx, it'll adjust the
- frequency of the current note according to:
-
- NewFrequency = OldFrequency * NewC5 / OldC5;
-*/
-
-
-
-/* These #defines are TEMPORARY. They are used to write alternative code to
- * handle ambiguities in the format specification. The correct code in each
- * case will be determined most likely by experimentation.
- */
-#define STEREO_SAMPLES_COUNT_AS_TWO
-#define INVALID_ORDERS_END_SONG
-#define INVALID_NOTES_CAUSE_NOTE_CUT
-#define SUSTAIN_LOOP_OVERRIDES_NORMAL_LOOP
-#define VOLUME_OUT_OF_RANGE_SETS_MAXIMUM
-
-
-
-#define SIGTYPE_IT DUMB_ID('I', 'T', ' ', ' ')
-
-#define IT_SIGNATURE DUMB_ID('I', 'M', 'P', 'M')
-#define IT_INSTRUMENT_SIGNATURE DUMB_ID('I', 'M', 'P', 'I')
-#define IT_SAMPLE_SIGNATURE DUMB_ID('I', 'M', 'P', 'S')
-
-// olivier sux
-#define IT_MPTX_SIGNATURE DUMB_ID('X', 'T', 'P', 'M')
-#define IT_INSM_SIGNATURE DUMB_ID('M', 'S', 'N', 'I')
-
-
-/* 1 minute per 4 rows, each row 6 ticks; this is divided by the tempo to get
- * the interval between ticks.
- */
-#define TICK_TIME_DIVIDEND ((65536 * 60) / (4 * 6))
-
-
-
-/* I'm not going to try to explain this, because I didn't derive it very
- * formally ;)
- */
-/* #define AMIGA_DIVISOR ((float)(4.0 * 14317056.0)) */
-/* I believe the following one to be more accurate. */
-//#define AMIGA_DIVISOR ((float)(8.0 * 7159090.5))
-#define AMIGA_CLOCK 3546895
-#define AMIGA_DIVISOR ((float)(16.0 * AMIGA_CLOCK))
-
-
-
-typedef struct IT_MIDI IT_MIDI;
-typedef struct IT_FILTER_STATE IT_FILTER_STATE;
-typedef struct IT_ENVELOPE IT_ENVELOPE;
-typedef struct IT_INSTRUMENT IT_INSTRUMENT;
-typedef struct IT_SAMPLE IT_SAMPLE;
-typedef struct IT_ENTRY IT_ENTRY;
-typedef struct IT_PATTERN IT_PATTERN;
-typedef struct IT_PLAYING_ENVELOPE IT_PLAYING_ENVELOPE;
-typedef struct IT_PLAYING IT_PLAYING;
-typedef struct IT_CHANNEL IT_CHANNEL;
-typedef struct IT_CHECKPOINT IT_CHECKPOINT;
-typedef struct IT_CALLBACKS IT_CALLBACKS;
-
-
-
-struct IT_MIDI
-{
- unsigned char SFmacro[16][16]; // read these from 0x120
- unsigned char SFmacrolen[16];
- unsigned short SFmacroz[16]; /* Bitfield; bit 0 set = z in first position */
- unsigned char Zmacro[128][16]; // read these from 0x320
- unsigned char Zmacrolen[128];
-};
-
-
-
-struct IT_FILTER_STATE
-{
- sample_t currsample, prevsample;
-};
-
-
-
-#define IT_ENVELOPE_ON 1
-#define IT_ENVELOPE_LOOP_ON 2
-#define IT_ENVELOPE_SUSTAIN_LOOP 4
-#define IT_ENVELOPE_CARRY 8
-#define IT_ENVELOPE_PITCH_IS_FILTER 128
-
-struct IT_ENVELOPE
-{
- unsigned char flags;
- unsigned char n_nodes;
- unsigned char loop_start;
- unsigned char loop_end;
- unsigned char sus_loop_start;
- unsigned char sus_loop_end;
- signed char node_y[25];
- unsigned short node_t[25];
-};
-
-
-
-#define NNA_NOTE_CUT 0
-#define NNA_NOTE_CONTINUE 1
-#define NNA_NOTE_OFF 2
-#define NNA_NOTE_FADE 3
-
-#define DCT_OFF 0
-#define DCT_NOTE 1
-#define DCT_SAMPLE 2
-#define DCT_INSTRUMENT 3
-
-#define DCA_NOTE_CUT 0
-#define DCA_NOTE_OFF 1
-#define DCA_NOTE_FADE 2
-
-struct IT_INSTRUMENT
-{
- unsigned char name[27];
- unsigned char filename[14];
-
- int fadeout;
-
- IT_ENVELOPE volume_envelope;
- IT_ENVELOPE pan_envelope;
- IT_ENVELOPE pitch_envelope;
-
- unsigned char new_note_action;
- unsigned char dup_check_type;
- unsigned char dup_check_action;
- signed char pp_separation;
- unsigned char pp_centre;
- unsigned char global_volume;
- unsigned char default_pan;
- unsigned char random_volume;
- unsigned char random_pan;
-
- unsigned char filter_cutoff;
- unsigned char filter_resonance;
-
- unsigned char map_note[120];
- unsigned short map_sample[120];
-
- //int output;
-};
-
-
-
-#define IT_SAMPLE_EXISTS 1
-#define IT_SAMPLE_16BIT 2
-#define IT_SAMPLE_STEREO 4
-#define IT_SAMPLE_LOOP 16
-#define IT_SAMPLE_SUS_LOOP 32
-#define IT_SAMPLE_PINGPONG_LOOP 64
-#define IT_SAMPLE_PINGPONG_SUS_LOOP 128
-
-#define IT_VIBRATO_SINE 0
-#define IT_VIBRATO_SAWTOOTH 1
-#define IT_VIBRATO_SQUARE 2
-#define IT_VIBRATO_RANDOM 3
-#define IT_VIBRATO_XM_SQUARE 4
-#define IT_VIBRATO_RAMP_DOWN 5
-#define IT_VIBRATO_RAMP_UP 6
-
-struct IT_SAMPLE
-{
- unsigned char name[35];
- unsigned char filename[14];
- unsigned char flags;
- unsigned char global_volume;
- unsigned char default_volume;
- unsigned char default_pan;
- /* default_pan:
- * 0-255 for XM
- * ignored for MOD
- * otherwise, 0-64, and add 128 to enable
- */
-
- long length;
- long loop_start;
- long loop_end;
- long C5_speed;
- long sus_loop_start;
- long sus_loop_end;
-
- unsigned char vibrato_speed;
- unsigned char vibrato_depth;
- unsigned char vibrato_rate;
- unsigned char vibrato_waveform;
-
- signed short finetune;
-
- void *data;
-
- int max_resampling_quality;
-};
-
-
-
-#define IT_ENTRY_NOTE 1
-#define IT_ENTRY_INSTRUMENT 2
-#define IT_ENTRY_VOLPAN 4
-#define IT_ENTRY_EFFECT 8
-
-#define IT_SET_END_ROW(entry) ((entry)->channel = 255)
-#define IT_IS_END_ROW(entry) ((entry)->channel >= DUMB_IT_N_CHANNELS)
-
-#define IT_NOTE_OFF 255
-#define IT_NOTE_CUT 254
-
-#define IT_ENVELOPE_SHIFT 8
-
-#define IT_SURROUND 100
-#define IT_IS_SURROUND(pan) ((pan) > 64)
-#define IT_IS_SURROUND_SHIFTED(pan) ((pan) > 64 << IT_ENVELOPE_SHIFT)
-
-#define IT_SET_SPEED 1
-#define IT_JUMP_TO_ORDER 2
-#define IT_BREAK_TO_ROW 3
-#define IT_VOLUME_SLIDE 4
-#define IT_PORTAMENTO_DOWN 5
-#define IT_PORTAMENTO_UP 6
-#define IT_TONE_PORTAMENTO 7
-#define IT_VIBRATO 8
-#define IT_TREMOR 9
-#define IT_ARPEGGIO 10
-#define IT_VOLSLIDE_VIBRATO 11
-#define IT_VOLSLIDE_TONEPORTA 12
-#define IT_SET_CHANNEL_VOLUME 13
-#define IT_CHANNEL_VOLUME_SLIDE 14
-#define IT_SET_SAMPLE_OFFSET 15
-#define IT_PANNING_SLIDE 16
-#define IT_RETRIGGER_NOTE 17
-#define IT_TREMOLO 18
-#define IT_S 19
-#define IT_SET_SONG_TEMPO 20
-#define IT_FINE_VIBRATO 21
-#define IT_SET_GLOBAL_VOLUME 22
-#define IT_GLOBAL_VOLUME_SLIDE 23
-#define IT_SET_PANNING 24
-#define IT_PANBRELLO 25
-#define IT_MIDI_MACRO 26 //see MIDI.TXT
-
-/* Some effects needed for XM compatibility */
-#define IT_XM_PORTAMENTO_DOWN 27
-#define IT_XM_PORTAMENTO_UP 28
-#define IT_XM_FINE_VOLSLIDE_DOWN 29
-#define IT_XM_FINE_VOLSLIDE_UP 30
-#define IT_XM_RETRIGGER_NOTE 31
-#define IT_XM_KEY_OFF 32
-#define IT_XM_SET_ENVELOPE_POSITION 33
-
-/* More effects needed for PTM compatibility */
-#define IT_PTM_NOTE_SLIDE_DOWN 34
-#define IT_PTM_NOTE_SLIDE_UP 35
-#define IT_PTM_NOTE_SLIDE_DOWN_RETRIG 36
-#define IT_PTM_NOTE_SLIDE_UP_RETRIG 37
-
-#define IT_N_EFFECTS 38
-
-/* These represent the top nibble of the command value. */
-#define IT_S_SET_FILTER 0 /* Greyed out in IT... */
-#define IT_S_SET_GLISSANDO_CONTROL 1 /* Greyed out in IT... */
-#define IT_S_FINETUNE 2 /* Greyed out in IT... */
-#define IT_S_SET_VIBRATO_WAVEFORM 3
-#define IT_S_SET_TREMOLO_WAVEFORM 4
-#define IT_S_SET_PANBRELLO_WAVEFORM 5
-#define IT_S_FINE_PATTERN_DELAY 6
-#define IT_S7 7
-#define IT_S_SET_PAN 8
-#define IT_S_SET_SURROUND_SOUND 9
-#define IT_S_SET_HIGH_OFFSET 10
-#define IT_S_PATTERN_LOOP 11
-#define IT_S_DELAYED_NOTE_CUT 12
-#define IT_S_NOTE_DELAY 13
-#define IT_S_PATTERN_DELAY 14
-#define IT_S_SET_MIDI_MACRO 15
-
-/*
-S0x Set filter
-S1x Set glissando control
-S2x Set finetune
-
-
-S3x Set vibrato waveform to type x
-S4x Set tremelo waveform to type x
-S5x Set panbrello waveform to type x
- Waveforms for commands S3x, S4x and S5x:
- 0: Sine wave
- 1: Ramp down
- 2: Square wave
- 3: Random wave
-S6x Pattern delay for x ticks
-S70 Past note cut
-S71 Past note off
-S72 Past note fade
-S73 Set NNA to note cut
-S74 Set NNA to continue
-S75 Set NNA to note off
-S76 Set NNA to note fade
-S77 Turn off volume envelope
-S78 Turn on volume envelope
-S79 Turn off panning envelope
-S7A Turn on panning envelope
-S7B Turn off pitch envelope
-S7C Turn on pitch envelope
-S8x Set panning position
-S91 Set surround sound
-SAy Set high value of sample offset yxx00h
-SB0 Set loopback point
-SBx Loop x times to loopback point
-SCx Note cut after x ticks
-SDx Note delay for x ticks
-SEx Pattern delay for x rows
-SFx Set parameterised MIDI Macro
-*/
-
-struct IT_ENTRY
-{
- unsigned char channel; /* End of row if channel >= DUMB_IT_N_CHANNELS */
- unsigned char mask;
- unsigned char note;
- unsigned char instrument;
- unsigned char volpan;
- unsigned char effect;
- unsigned char effectvalue;
-};
-
-
-
-struct IT_PATTERN
-{
- int n_rows;
- int n_entries;
- IT_ENTRY *entry;
-};
-
-
-
-#define IT_STEREO 1
-#define IT_USE_INSTRUMENTS 4
-#define IT_LINEAR_SLIDES 8 /* If not set, use Amiga slides */
-#define IT_OLD_EFFECTS 16
-#define IT_COMPATIBLE_GXX 32
-
-/* Make sure IT_WAS_AN_XM and IT_WAS_A_MOD aren't set accidentally */
-#define IT_REAL_FLAGS 63
-
-#define IT_WAS_AN_XM 64 /* Set for both XMs and MODs */
-#define IT_WAS_A_MOD 128
-
-#define IT_WAS_AN_S3M 256
-
-#define IT_WAS_A_PTM 512
-
-#define IT_WAS_A_669 1024
-
-#define IT_ORDER_END 255
-#define IT_ORDER_SKIP 254
-
-struct DUMB_IT_SIGDATA
-{
- unsigned char name[65];
-
- unsigned char *song_message;
-
- int n_orders;
- int n_instruments;
- int n_samples;
- int n_patterns;
- int n_pchannels;
-
- int flags;
-
- int global_volume;
- int mixing_volume;
- int speed;
- int tempo;
- int pan_separation;
-
- unsigned char channel_pan[DUMB_IT_N_CHANNELS];
- unsigned char channel_volume[DUMB_IT_N_CHANNELS];
-
- unsigned char *order;
- unsigned char restart_position; /* for XM compatiblity */
-
- IT_INSTRUMENT *instrument;
- IT_SAMPLE *sample;
- IT_PATTERN *pattern;
-
- IT_MIDI *midi;
-
- IT_CHECKPOINT *checkpoint;
-};
-
-
-
-struct IT_PLAYING_ENVELOPE
-{
- int next_node;
- int tick;
- int value;
-};
-
-
-
-#define IT_PLAYING_BACKGROUND 1
-#define IT_PLAYING_SUSTAINOFF 2
-#define IT_PLAYING_FADING 4
-#define IT_PLAYING_DEAD 8
-
-struct IT_PLAYING
-{
- int flags;
-
- int resampling_quality;
-
- IT_CHANNEL *channel;
- IT_SAMPLE *sample;
- IT_INSTRUMENT *instrument;
- IT_INSTRUMENT *env_instrument;
-
- unsigned short sampnum;
- unsigned char instnum;
-
- unsigned char declick_stage;
- float declick_volume;
-
- float float_volume[2];
- float ramp_volume[2];
- float ramp_delta[2];
-
- unsigned char channel_volume;
-
- unsigned char volume;
- unsigned short pan;
-
- signed char volume_offset, panning_offset;
-
- unsigned char note;
-
- unsigned char enabled_envelopes;
-
- unsigned char filter_cutoff;
- unsigned char filter_resonance;
-
- unsigned short true_filter_cutoff; /* These incorporate the filter envelope, and will not */
- unsigned char true_filter_resonance; /* be changed if they would be set to 127<<8 and 0. */
-
- unsigned char vibrato_speed;
- unsigned char vibrato_depth;
- unsigned char vibrato_n; /* May be specified twice: volpan & effect. */
- unsigned char vibrato_time;
- unsigned char vibrato_waveform;
-
- unsigned char tremolo_speed;
- unsigned char tremolo_depth;
- unsigned char tremolo_time;
- unsigned char tremolo_waveform;
-
- unsigned char panbrello_speed;
- unsigned char panbrello_depth;
- unsigned char panbrello_time;
- unsigned char panbrello_waveform;
- signed char panbrello_random;
-
- unsigned char sample_vibrato_time;
- unsigned char sample_vibrato_waveform;
- int sample_vibrato_depth; /* Starts at rate?0:depth, increases by rate */
-
- int slide;
- float delta;
- int finetune;
-
- IT_PLAYING_ENVELOPE volume_envelope;
- IT_PLAYING_ENVELOPE pan_envelope;
- IT_PLAYING_ENVELOPE pitch_envelope;
-
- int fadeoutcount;
-
- IT_FILTER_STATE filter_state[2]; /* Left and right */
-
- DUMB_RESAMPLER resampler;
-
- /* time_lost is used to emulate Impulse Tracker's sample looping
- * characteristics. When time_lost is added to pos, the result represents
- * the position in the theoretical version of the sample where all loops
- * have been expanded. If this is stored, the resampling helpers will
- * safely convert it for use with new loop boundaries. The situation is
- * slightly more complicated if dir == -1 when the change takes place; we
- * must reflect pos off the loop end point and set dir to 1 before
- * proceeding.
- */
- long time_lost;
-
- //int output;
-};
-
-
-
-#define IT_CHANNEL_MUTED 1
-
-#define IT_ENV_VOLUME 1
-#define IT_ENV_PANNING 2
-#define IT_ENV_PITCH 4
-
-struct IT_CHANNEL
-{
- int flags;
-
- unsigned char volume;
- signed char volslide;
- signed char xm_volslide;
- signed char panslide;
-
- /* xm_volslide is used for volume slides done in the volume column in an
- * XM file, since it seems the volume column slide is applied first,
- * followed by clamping, followed by the effects column slide. IT does
- * not exhibit this behaviour, so xm_volslide is maintained at zero.
- */
-
- unsigned char pan;
- unsigned short truepan;
-
- unsigned char channelvolume;
- signed char channelvolslide;
-
- unsigned char instrument;
- unsigned char note;
-
- unsigned char SFmacro;
-
- unsigned char filter_cutoff;
- unsigned char filter_resonance;
-
- unsigned char key_off_count;
- unsigned char note_cut_count;
- unsigned char note_delay_count;
- IT_ENTRY *note_delay_entry;
-
- unsigned char new_note_action;
-
- int arpeggio;
- unsigned char retrig;
- unsigned char xm_retrig;
- int retrig_tick;
-
- unsigned char tremor;
- unsigned char tremor_time; /* Bit 6 set if note on; bit 7 set if tremor active. */
-
- unsigned char vibrato_waveform;
- unsigned char tremolo_waveform;
- unsigned char panbrello_waveform;
-
- int portamento;
- int toneporta;
- int toneslide;
- unsigned char toneslide_tick, last_toneslide_tick, ptm_toneslide, ptm_last_toneslide;
- unsigned char destnote;
- unsigned char toneslide_retrig;
-
- unsigned char glissando;
-
- /** WARNING - for neatness, should one or both of these be in the IT_PLAYING struct? */
- unsigned short sample;
- unsigned char truenote;
-
- unsigned char midi_state;
-
- signed char lastvolslide;
- unsigned char lastDKL;
- unsigned char lastEF; /* Doubles as last portamento up for XM files */
- unsigned char lastG;
- unsigned char lastHspeed;
- unsigned char lastHdepth;
- unsigned char lastRspeed;
- unsigned char lastRdepth;
- unsigned char lastYspeed;
- unsigned char lastYdepth;
- unsigned char lastI;
- unsigned char lastJ; /* Doubles as last portamento down for XM files */
- unsigned char lastN;
- unsigned char lastO;
- unsigned char high_offset;
- unsigned char lastP;
- unsigned char lastQ;
- unsigned char lastS;
- unsigned char pat_loop_row;
- unsigned char pat_loop_count;
- unsigned char pat_loop_end_row; /* Used to catch infinite pattern loops */
- unsigned char lastW;
-
- unsigned char xm_lastE1;
- unsigned char xm_lastE2;
- unsigned char xm_lastEA;
- unsigned char xm_lastEB;
- unsigned char xm_lastX1;
- unsigned char xm_lastX2;
-
- IT_PLAYING *playing;
-
-#ifdef BIT_ARRAY_BULLSHIT
- void * played_patjump;
- int played_patjump_order;
-#endif
-
- //int output;
-};
-
-
-
-struct DUMB_IT_SIGRENDERER
-{
- DUMB_IT_SIGDATA *sigdata;
-
- int n_channels;
-
- int resampling_quality;
-
- unsigned char globalvolume;
- signed char globalvolslide;
-
- int tempo;
- signed char temposlide;
-
- IT_CHANNEL channel[DUMB_IT_N_CHANNELS];
-
- IT_PLAYING *playing[DUMB_IT_N_NNA_CHANNELS];
-
- int tick;
- int speed;
- int rowcount;
-
- int order; /* Set to -1 if the song is terminated by a callback. */
- int row;
- int processorder;
- int processrow;
- int breakrow;
-
- int restart_position;
-
- int n_rows;
-
- IT_ENTRY *entry_start;
- IT_ENTRY *entry;
- IT_ENTRY *entry_end;
-
- long time_left; /* Time before the next tick is processed */
- int sub_time_left;
-
- DUMB_CLICK_REMOVER **click_remover;
-
- IT_CALLBACKS *callbacks;
-
-#ifdef BIT_ARRAY_BULLSHIT
- /* bit array, which rows are played, only checked by pattern break or loop commands */
- void * played;
-#endif
-
- long gvz_time;
- int gvz_sub_time;
-
- int ramp_style;
-
- //int max_output;
-};
-
-
-
-struct IT_CHECKPOINT
-{
- IT_CHECKPOINT *next;
- long time;
- DUMB_IT_SIGRENDERER *sigrenderer;
-};
-
-
-
-struct IT_CALLBACKS
-{
- int (*loop)(void *data);
- void *loop_data;
- /* Return 1 to prevent looping; the music will terminate abruptly. If you
- * want to make the music stop but allow samples to fade (beware, as they
- * might not fade at all!), use dumb_it_sr_set_speed() and set the speed
- * to 0. Note that xm_speed_zero() will not be called if you set the
- * speed manually, and also that this will work for IT and S3M files even
- * though the music can't stop in this way by itself.
- */
-
- int (*xm_speed_zero)(void *data);
- void *xm_speed_zero_data;
- /* Return 1 to terminate the mod, without letting samples fade. */
-
- int (*midi)(void *data, int channel, unsigned char byte);
- void *midi_data;
- /* Return 1 to prevent DUMB from subsequently interpreting the MIDI bytes
- * itself. In other words, return 1 if the Zxx macros in an IT file are
- * controlling filters and shouldn't be.
- */
-
- int (*global_volume_zero)(void *data);
- void *global_volume_zero_data;
- /* Return 1 to terminate the module when global volume is set to zero. */
-};
-
-
-
-void _dumb_it_end_sigrenderer(sigrenderer_t *sigrenderer);
-void _dumb_it_unload_sigdata(sigdata_t *vsigdata);
-
-extern DUH_SIGTYPE_DESC _dumb_sigtype_it;
-
-
-
-#define XM_APPREGIO 0
-#define XM_PORTAMENTO_UP 1
-#define XM_PORTAMENTO_DOWN 2
-#define XM_TONE_PORTAMENTO 3
-#define XM_VIBRATO 4
-#define XM_VOLSLIDE_TONEPORTA 5
-#define XM_VOLSLIDE_VIBRATO 6
-#define XM_TREMOLO 7
-#define XM_SET_PANNING 8
-#define XM_SAMPLE_OFFSET 9
-#define XM_VOLUME_SLIDE 10 /* A */
-#define XM_POSITION_JUMP 11 /* B */
-#define XM_SET_CHANNEL_VOLUME 12 /* C */
-#define XM_PATTERN_BREAK 13 /* D */
-#define XM_E 14 /* E */
-#define XM_SET_TEMPO_BPM 15 /* F */
-#define XM_SET_GLOBAL_VOLUME 16 /* G */
-#define XM_GLOBAL_VOLUME_SLIDE 17 /* H */
-#define XM_KEY_OFF 20 /* K (undocumented) */
-#define XM_SET_ENVELOPE_POSITION 21 /* L */
-#define XM_PANNING_SLIDE 25 /* P */
-#define XM_MULTI_RETRIG 27 /* R */
-#define XM_TREMOR 29 /* T */
-#define XM_X 33 /* X */
-#define XM_N_EFFECTS (10+26)
-
-#define XM_E_SET_FILTER 0x0
-#define XM_E_FINE_PORTA_UP 0x1
-#define XM_E_FINE_PORTA_DOWN 0x2
-#define XM_E_SET_GLISSANDO_CONTROL 0x3
-#define XM_E_SET_VIBRATO_CONTROL 0x4
-#define XM_E_SET_FINETUNE 0x5
-#define XM_E_SET_LOOP 0x6
-#define XM_E_SET_TREMOLO_CONTROL 0x7
-#define XM_E_SET_PANNING 0x8
-#define XM_E_RETRIG_NOTE 0x9
-#define XM_E_FINE_VOLSLIDE_UP 0xA
-#define XM_E_FINE_VOLSLIDE_DOWN 0xB
-#define XM_E_NOTE_CUT 0xC
-#define XM_E_NOTE_DELAY 0xD
-#define XM_E_PATTERN_DELAY 0xE
-
-#define XM_X_EXTRAFINE_PORTA_UP 1
-#define XM_X_EXTRAFINE_PORTA_DOWN 2
-
-/* To make my life a bit simpler during conversion, effect E:xy is converted
- * to effect number EBASE+x:y. The same applies to effect X, and IT's S. That
- * way, these effects can be manipulated like regular effects.
- */
-#define EBASE (XM_N_EFFECTS)
-#define XBASE (EBASE+16)
-#define SBASE (IT_N_EFFECTS)
-
-#define EFFECT_VALUE(x, y) (((x)<<4)|(y))
-#define HIGH(v) ((v)>>4)
-#define LOW(v) ((v)&0x0F)
-#define SET_HIGH(v, x) v = (((x)<<4)|((v)&0x0F))
-#define SET_LOW(v, y) v = (((v)&0xF0)|(y))
-#define BCD_TO_NORMAL(v) (HIGH(v)*10+LOW(v))
-
-
-
-#if 0
-unsigned char **_dumb_malloc2(int w, int h);
-void _dumb_free2(unsigned char **line);
-#endif
-
-void _dumb_it_xm_convert_effect(int effect, int value, IT_ENTRY *entry, int mod);
-int _dumb_it_fix_invalid_orders(DUMB_IT_SIGDATA *sigdata);
-
-
-#define PTM_APPREGIO 0
-#define PTM_PORTAMENTO_UP 1
-#define PTM_PORTAMENTO_DOWN 2
-#define PTM_TONE_PORTAMENTO 3
-#define PTM_VIBRATO 4
-#define PTM_VOLSLIDE_TONEPORTA 5
-#define PTM_VOLSLIDE_VIBRATO 6
-#define PTM_TREMOLO 7
-#define PTM_SAMPLE_OFFSET 9
-#define PTM_VOLUME_SLIDE 10 /* A */
-#define PTM_POSITION_JUMP 11 /* B */
-#define PTM_SET_CHANNEL_VOLUME 12 /* C */
-#define PTM_PATTERN_BREAK 13 /* D */
-#define PTM_E 14 /* E */
-#define PTM_SET_TEMPO_BPM 15 /* F */
-#define PTM_SET_GLOBAL_VOLUME 16 /* G */
-#define PTM_RETRIGGER 17 /* H */
-#define PTM_FINE_VIBRATO 18 /* I */
-#define PTM_NOTE_SLIDE_UP 19 /* J */
-#define PTM_NOTE_SLIDE_DOWN 20 /* K */
-#define PTM_NOTE_SLIDE_UP_RETRIG 21 /* L */
-#define PTM_NOTE_SLIDE_DOWN_RETRIG 22 /* M */
-#define PTM_N_EFFECTS 23
-
-#define PTM_E_FINE_PORTA_DOWN 0x1
-#define PTM_E_FINE_PORTA_UP 0x2
-#define PTM_E_SET_VIBRATO_CONTROL 0x4
-#define PTM_E_SET_FINETUNE 0x5
-#define PTM_E_SET_LOOP 0x6
-#define PTM_E_SET_TREMOLO_CONTROL 0x7
-#define PTM_E_SET_PANNING 0x8
-#define PTM_E_RETRIG_NOTE 0x9
-#define PTM_E_FINE_VOLSLIDE_UP 0xA
-#define PTM_E_FINE_VOLSLIDE_DOWN 0xB
-#define PTM_E_NOTE_CUT 0xC
-#define PTM_E_NOTE_DELAY 0xD
-#define PTM_E_PATTERN_DELAY 0xE
-
-/* To make my life a bit simpler during conversion, effect E:xy is converted
- * to effect number EBASE+x:y. The same applies to effect X, and IT's S. That
- * way, these effects can be manipulated like regular effects.
- */
-#define PTM_EBASE (PTM_N_EFFECTS)
-
-void _dumb_it_ptm_convert_effect(int effect, int value, IT_ENTRY *entry);
-
-long _dumb_it_read_sample_data_adpcm4(IT_SAMPLE *sample, DUMBFILE *f);
-
-#define min(x,y) ((x)<(y)?(x):(y))
-#define max(x,y) ((x)>(y)?(x):(y))
-
-#endif /* INTERNAL_IT_H */
+/* _______ ____ __ ___ ___ + * \ _ \ \ / \ / \ \ / / ' ' ' + * | | \ \ | | || | \/ | . . + * | | | | | | || ||\ /| | + * | | | | | | || || \/ | | ' ' ' + * | | | | | | || || | | . . + * | |_/ / \ \__// || | | + * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque + * / \ + * / . \ + * internal/it.h - Internal stuff for IT playback / / \ \ + * and MOD/XM/S3M conversion. | < / \_ + * | \/ /\ / + * This header file provides access to the \_ / > / + * internal structure of DUMB, and is liable | \ / / + * to change, mutate or cease to exist at any | ' / + * moment. Include it at your own peril. \__/ + * + * ... + * + * Seriously. You don't need access to anything in this file. All right, you + * probably do actually. But if you use it, you will be relying on a specific + * version of DUMB, so please check DUMB_VERSION defined in dumb.h. Please + * contact the authors so that we can provide a public API for what you need. + */ + +#ifndef INTERNAL_IT_H +#define INTERNAL_IT_H + + +#define BIT_ARRAY_BULLSHIT + +#include <stddef.h> + +#include "barray.h" + + +/** TO DO: THINK ABOUT THE FOLLOWING: + +sigdata->flags & IT_COMPATIBLE_GXX + + Bit 5: On = Link Effect G's memory with Effect E/F. Also + Gxx with an instrument present will cause the + envelopes to be retriggered. If you change a + sample on a row with Gxx, it'll adjust the + frequency of the current note according to: + + NewFrequency = OldFrequency * NewC5 / OldC5; +*/ + + + +/* These #defines are TEMPORARY. They are used to write alternative code to + * handle ambiguities in the format specification. The correct code in each + * case will be determined most likely by experimentation. + */ +#define STEREO_SAMPLES_COUNT_AS_TWO +#define INVALID_ORDERS_END_SONG +#define INVALID_NOTES_CAUSE_NOTE_CUT +#define SUSTAIN_LOOP_OVERRIDES_NORMAL_LOOP +#define VOLUME_OUT_OF_RANGE_SETS_MAXIMUM + + + +#define SIGTYPE_IT DUMB_ID('I', 'T', ' ', ' ') + +#define IT_SIGNATURE DUMB_ID('I', 'M', 'P', 'M') +#define IT_INSTRUMENT_SIGNATURE DUMB_ID('I', 'M', 'P', 'I') +#define IT_SAMPLE_SIGNATURE DUMB_ID('I', 'M', 'P', 'S') + +// olivier sux +#define IT_MPTX_SIGNATURE DUMB_ID('X', 'T', 'P', 'M') +#define IT_INSM_SIGNATURE DUMB_ID('M', 'S', 'N', 'I') + + +/* 1 minute per 4 rows, each row 6 ticks; this is divided by the tempo to get + * the interval between ticks. + */ +#define TICK_TIME_DIVIDEND ((65536 * 60) / (4 * 6)) + + + +/* I'm not going to try to explain this, because I didn't derive it very + * formally ;) + */ +/* #define AMIGA_DIVISOR ((float)(4.0 * 14317056.0)) */ +/* I believe the following one to be more accurate. */ +//#define AMIGA_DIVISOR ((float)(8.0 * 7159090.5)) +#define AMIGA_CLOCK 3546895 +#define AMIGA_DIVISOR ((float)(16.0 * AMIGA_CLOCK)) + + + +typedef struct IT_MIDI IT_MIDI; +typedef struct IT_FILTER_STATE IT_FILTER_STATE; +typedef struct IT_ENVELOPE IT_ENVELOPE; +typedef struct IT_INSTRUMENT IT_INSTRUMENT; +typedef struct IT_SAMPLE IT_SAMPLE; +typedef struct IT_ENTRY IT_ENTRY; +typedef struct IT_PATTERN IT_PATTERN; +typedef struct IT_PLAYING_ENVELOPE IT_PLAYING_ENVELOPE; +typedef struct IT_PLAYING IT_PLAYING; +typedef struct IT_CHANNEL IT_CHANNEL; +typedef struct IT_CHECKPOINT IT_CHECKPOINT; +typedef struct IT_CALLBACKS IT_CALLBACKS; + + + +struct IT_MIDI +{ + unsigned char SFmacro[16][16]; // read these from 0x120 + unsigned char SFmacrolen[16]; + unsigned short SFmacroz[16]; /* Bitfield; bit 0 set = z in first position */ + unsigned char Zmacro[128][16]; // read these from 0x320 + unsigned char Zmacrolen[128]; +}; + + + +struct IT_FILTER_STATE +{ + sample_t currsample, prevsample; +}; + + + +#define IT_ENVELOPE_ON 1 +#define IT_ENVELOPE_LOOP_ON 2 +#define IT_ENVELOPE_SUSTAIN_LOOP 4 +#define IT_ENVELOPE_CARRY 8 +#define IT_ENVELOPE_PITCH_IS_FILTER 128 + +struct IT_ENVELOPE +{ + unsigned char flags; + unsigned char n_nodes; + unsigned char loop_start; + unsigned char loop_end; + unsigned char sus_loop_start; + unsigned char sus_loop_end; + signed char node_y[25]; + unsigned short node_t[25]; +}; + + + +#define NNA_NOTE_CUT 0 +#define NNA_NOTE_CONTINUE 1 +#define NNA_NOTE_OFF 2 +#define NNA_NOTE_FADE 3 + +#define DCT_OFF 0 +#define DCT_NOTE 1 +#define DCT_SAMPLE 2 +#define DCT_INSTRUMENT 3 + +#define DCA_NOTE_CUT 0 +#define DCA_NOTE_OFF 1 +#define DCA_NOTE_FADE 2 + +struct IT_INSTRUMENT +{ + unsigned char name[27]; + unsigned char filename[14]; + + int fadeout; + + IT_ENVELOPE volume_envelope; + IT_ENVELOPE pan_envelope; + IT_ENVELOPE pitch_envelope; + + unsigned char new_note_action; + unsigned char dup_check_type; + unsigned char dup_check_action; + signed char pp_separation; + unsigned char pp_centre; + unsigned char global_volume; + unsigned char default_pan; + unsigned char random_volume; + unsigned char random_pan; + + unsigned char filter_cutoff; + unsigned char filter_resonance; + + unsigned char map_note[120]; + unsigned short map_sample[120]; + + //int output; +}; + + + +#define IT_SAMPLE_EXISTS 1 +#define IT_SAMPLE_16BIT 2 +#define IT_SAMPLE_STEREO 4 +#define IT_SAMPLE_LOOP 16 +#define IT_SAMPLE_SUS_LOOP 32 +#define IT_SAMPLE_PINGPONG_LOOP 64 +#define IT_SAMPLE_PINGPONG_SUS_LOOP 128 + +#define IT_VIBRATO_SINE 0 +#define IT_VIBRATO_SAWTOOTH 1 +#define IT_VIBRATO_SQUARE 2 +#define IT_VIBRATO_RANDOM 3 +#define IT_VIBRATO_XM_SQUARE 4 +#define IT_VIBRATO_RAMP_DOWN 5 +#define IT_VIBRATO_RAMP_UP 6 + +struct IT_SAMPLE +{ + unsigned char name[35]; + unsigned char filename[14]; + unsigned char flags; + unsigned char global_volume; + unsigned char default_volume; + unsigned char default_pan; + /* default_pan: + * 0-255 for XM + * ignored for MOD + * otherwise, 0-64, and add 128 to enable + */ + + long length; + long loop_start; + long loop_end; + long C5_speed; + long sus_loop_start; + long sus_loop_end; + + unsigned char vibrato_speed; + unsigned char vibrato_depth; + unsigned char vibrato_rate; + unsigned char vibrato_waveform; + + signed short finetune; + + void *data; + + int max_resampling_quality; +}; + + + +#define IT_ENTRY_NOTE 1 +#define IT_ENTRY_INSTRUMENT 2 +#define IT_ENTRY_VOLPAN 4 +#define IT_ENTRY_EFFECT 8 + +#define IT_SET_END_ROW(entry) ((entry)->channel = 255) +#define IT_IS_END_ROW(entry) ((entry)->channel >= DUMB_IT_N_CHANNELS) + +#define IT_NOTE_OFF 255 +#define IT_NOTE_CUT 254 + +#define IT_ENVELOPE_SHIFT 8 + +#define IT_SURROUND 100 +#define IT_IS_SURROUND(pan) ((pan) > 64) +#define IT_IS_SURROUND_SHIFTED(pan) ((pan) > 64 << IT_ENVELOPE_SHIFT) + +#define IT_SET_SPEED 1 +#define IT_JUMP_TO_ORDER 2 +#define IT_BREAK_TO_ROW 3 +#define IT_VOLUME_SLIDE 4 +#define IT_PORTAMENTO_DOWN 5 +#define IT_PORTAMENTO_UP 6 +#define IT_TONE_PORTAMENTO 7 +#define IT_VIBRATO 8 +#define IT_TREMOR 9 +#define IT_ARPEGGIO 10 +#define IT_VOLSLIDE_VIBRATO 11 +#define IT_VOLSLIDE_TONEPORTA 12 +#define IT_SET_CHANNEL_VOLUME 13 +#define IT_CHANNEL_VOLUME_SLIDE 14 +#define IT_SET_SAMPLE_OFFSET 15 +#define IT_PANNING_SLIDE 16 +#define IT_RETRIGGER_NOTE 17 +#define IT_TREMOLO 18 +#define IT_S 19 +#define IT_SET_SONG_TEMPO 20 +#define IT_FINE_VIBRATO 21 +#define IT_SET_GLOBAL_VOLUME 22 +#define IT_GLOBAL_VOLUME_SLIDE 23 +#define IT_SET_PANNING 24 +#define IT_PANBRELLO 25 +#define IT_MIDI_MACRO 26 //see MIDI.TXT + +/* Some effects needed for XM compatibility */ +#define IT_XM_PORTAMENTO_DOWN 27 +#define IT_XM_PORTAMENTO_UP 28 +#define IT_XM_FINE_VOLSLIDE_DOWN 29 +#define IT_XM_FINE_VOLSLIDE_UP 30 +#define IT_XM_RETRIGGER_NOTE 31 +#define IT_XM_KEY_OFF 32 +#define IT_XM_SET_ENVELOPE_POSITION 33 + +/* More effects needed for PTM compatibility */ +#define IT_PTM_NOTE_SLIDE_DOWN 34 +#define IT_PTM_NOTE_SLIDE_UP 35 +#define IT_PTM_NOTE_SLIDE_DOWN_RETRIG 36 +#define IT_PTM_NOTE_SLIDE_UP_RETRIG 37 +#define IT_MIDI_MACRO 26 //see MIDI.TXT + +/* Some effects needed for XM compatibility */ +#define IT_XM_PORTAMENTO_DOWN 27 +#define IT_XM_PORTAMENTO_UP 28 +#define IT_XM_FINE_VOLSLIDE_DOWN 29 +#define IT_XM_FINE_VOLSLIDE_UP 30 +#define IT_XM_RETRIGGER_NOTE 31 +#define IT_XM_KEY_OFF 32 +#define IT_XM_SET_ENVELOPE_POSITION 33 + +#define IT_N_EFFECTS 38 + +/* These represent the top nibble of the command value. */ +#define IT_S_SET_FILTER 0 /* Greyed out in IT... */ +#define IT_S_SET_GLISSANDO_CONTROL 1 /* Greyed out in IT... */ +#define IT_S_FINETUNE 2 /* Greyed out in IT... */ +#define IT_S_SET_VIBRATO_WAVEFORM 3 +#define IT_S_SET_TREMOLO_WAVEFORM 4 +#define IT_S_SET_PANBRELLO_WAVEFORM 5 +#define IT_S_FINE_PATTERN_DELAY 6 +#define IT_S7 7 +#define IT_S_SET_PAN 8 +#define IT_S_SET_SURROUND_SOUND 9 +#define IT_S_SET_HIGH_OFFSET 10 +#define IT_S_PATTERN_LOOP 11 +#define IT_S_DELAYED_NOTE_CUT 12 +#define IT_S_NOTE_DELAY 13 +#define IT_S_PATTERN_DELAY 14 +#define IT_S_SET_MIDI_MACRO 15 + +/* +S0x Set filter +S1x Set glissando control +S2x Set finetune + + +S3x Set vibrato waveform to type x +S4x Set tremelo waveform to type x +S5x Set panbrello waveform to type x + Waveforms for commands S3x, S4x and S5x: + 0: Sine wave + 1: Ramp down + 2: Square wave + 3: Random wave +S6x Pattern delay for x ticks +S70 Past note cut +S71 Past note off +S72 Past note fade +S73 Set NNA to note cut +S74 Set NNA to continue +S75 Set NNA to note off +S76 Set NNA to note fade +S77 Turn off volume envelope +S78 Turn on volume envelope +S79 Turn off panning envelope +S7A Turn on panning envelope +S7B Turn off pitch envelope +S7C Turn on pitch envelope +S8x Set panning position +S91 Set surround sound +SAy Set high value of sample offset yxx00h +SB0 Set loopback point +SBx Loop x times to loopback point +SCx Note cut after x ticks +SDx Note delay for x ticks +SEx Pattern delay for x rows +SFx Set parameterised MIDI Macro +*/ + +struct IT_ENTRY +{ + unsigned char channel; /* End of row if channel >= DUMB_IT_N_CHANNELS */ + unsigned char mask; + unsigned char note; + unsigned char instrument; + unsigned char volpan; + unsigned char effect; + unsigned char effectvalue; +}; + + + +struct IT_PATTERN +{ + int n_rows; + int n_entries; + IT_ENTRY *entry; +}; + + + +#define IT_STEREO 1 +#define IT_USE_INSTRUMENTS 4 +#define IT_LINEAR_SLIDES 8 /* If not set, use Amiga slides */ +#define IT_OLD_EFFECTS 16 +#define IT_COMPATIBLE_GXX 32 + +/* Make sure IT_WAS_AN_XM and IT_WAS_A_MOD aren't set accidentally */ +#define IT_REAL_FLAGS 63 + +#define IT_WAS_AN_XM 64 /* Set for both XMs and MODs */ +#define IT_WAS_A_MOD 128 + +#define IT_WAS_AN_S3M 256 + +#define IT_WAS_A_PTM 512 + +#define IT_WAS_A_669 1024 + +#define IT_ORDER_END 255 +#define IT_ORDER_SKIP 254 + +struct DUMB_IT_SIGDATA +{ + unsigned char name[65]; + + unsigned char *song_message; + + int n_orders; + int n_instruments; + int n_samples; + int n_patterns; + int n_pchannels; + + int flags; + + int global_volume; + int mixing_volume; + int speed; + int tempo; + int pan_separation; + + unsigned char channel_pan[DUMB_IT_N_CHANNELS]; + unsigned char channel_volume[DUMB_IT_N_CHANNELS]; + + unsigned char *order; + unsigned char restart_position; /* for XM compatiblity */ + + IT_INSTRUMENT *instrument; + IT_SAMPLE *sample; + IT_PATTERN *pattern; + + IT_MIDI *midi; + + IT_CHECKPOINT *checkpoint; +}; + + + +struct IT_PLAYING_ENVELOPE +{ + int next_node; + int tick; + int value; +}; + + + +#define IT_PLAYING_BACKGROUND 1 +#define IT_PLAYING_SUSTAINOFF 2 +#define IT_PLAYING_FADING 4 +#define IT_PLAYING_DEAD 8 + +struct IT_PLAYING +{ + int flags; + + int resampling_quality; + + IT_CHANNEL *channel; + IT_SAMPLE *sample; + IT_INSTRUMENT *instrument; + IT_INSTRUMENT *env_instrument; + + unsigned short sampnum; + unsigned char instnum; + + unsigned char declick_stage; + float declick_volume; + + float float_volume[2]; + float ramp_volume[2]; + float ramp_delta[2]; + + unsigned char channel_volume; + + unsigned char volume; + unsigned short pan; + + signed char volume_offset, panning_offset; + + unsigned char note; + + unsigned char enabled_envelopes; + + unsigned char filter_cutoff; + unsigned char filter_resonance; + + unsigned short true_filter_cutoff; /* These incorporate the filter envelope, and will not */ + unsigned char true_filter_resonance; /* be changed if they would be set to 127<<8 and 0. */ + + unsigned char vibrato_speed; + unsigned char vibrato_depth; + unsigned char vibrato_n; /* May be specified twice: volpan & effect. */ + unsigned char vibrato_time; + unsigned char vibrato_waveform; + + unsigned char tremolo_speed; + unsigned char tremolo_depth; + unsigned char tremolo_time; + unsigned char tremolo_waveform; + + unsigned char panbrello_speed; + unsigned char panbrello_depth; + unsigned char panbrello_time; + unsigned char panbrello_waveform; + signed char panbrello_random; + + unsigned char sample_vibrato_time; + unsigned char sample_vibrato_waveform; + int sample_vibrato_depth; /* Starts at rate?0:depth, increases by rate */ + + int slide; + float delta; + int finetune; + + IT_PLAYING_ENVELOPE volume_envelope; + IT_PLAYING_ENVELOPE pan_envelope; + IT_PLAYING_ENVELOPE pitch_envelope; + + int fadeoutcount; + + IT_FILTER_STATE filter_state[2]; /* Left and right */ + + DUMB_RESAMPLER resampler; + + /* time_lost is used to emulate Impulse Tracker's sample looping + * characteristics. When time_lost is added to pos, the result represents + * the position in the theoretical version of the sample where all loops + * have been expanded. If this is stored, the resampling helpers will + * safely convert it for use with new loop boundaries. The situation is + * slightly more complicated if dir == -1 when the change takes place; we + * must reflect pos off the loop end point and set dir to 1 before + * proceeding. + */ + long time_lost; + + //int output; +}; + + + +#define IT_CHANNEL_MUTED 1 + +#define IT_ENV_VOLUME 1 +#define IT_ENV_PANNING 2 +#define IT_ENV_PITCH 4 + +struct IT_CHANNEL +{ + int flags; + + unsigned char volume; + signed char volslide; + signed char xm_volslide; + signed char panslide; + + /* xm_volslide is used for volume slides done in the volume column in an + * XM file, since it seems the volume column slide is applied first, + * followed by clamping, followed by the effects column slide. IT does + * not exhibit this behaviour, so xm_volslide is maintained at zero. + */ + + unsigned char pan; + unsigned short truepan; + + unsigned char channelvolume; + signed char channelvolslide; + + unsigned char instrument; + unsigned char note; + + unsigned char SFmacro; + + unsigned char filter_cutoff; + unsigned char filter_resonance; + + unsigned char key_off_count; + unsigned char note_cut_count; + unsigned char note_delay_count; + IT_ENTRY *note_delay_entry; + + unsigned char new_note_action; + + int arpeggio; + unsigned char retrig; + unsigned char xm_retrig; + int retrig_tick; + + unsigned char tremor; + unsigned char tremor_time; /* Bit 6 set if note on; bit 7 set if tremor active. */ + + unsigned char vibrato_waveform; + unsigned char tremolo_waveform; + unsigned char panbrello_waveform; + + int portamento; + int toneporta; + int toneslide; + unsigned char toneslide_tick, last_toneslide_tick, ptm_toneslide, ptm_last_toneslide; + unsigned char destnote; + unsigned char toneslide_retrig; + + unsigned char glissando; + + /** WARNING - for neatness, should one or both of these be in the IT_PLAYING struct? */ + unsigned short sample; + unsigned char truenote; + + unsigned char midi_state; + + signed char lastvolslide; + unsigned char lastDKL; + unsigned char lastEF; /* Doubles as last portamento up for XM files */ + unsigned char lastG; + unsigned char lastHspeed; + unsigned char lastHdepth; + unsigned char lastRspeed; + unsigned char lastRdepth; + unsigned char lastYspeed; + unsigned char lastYdepth; + unsigned char lastI; + unsigned char lastJ; /* Doubles as last portamento down for XM files */ + unsigned char lastN; + unsigned char lastO; + unsigned char high_offset; + unsigned char lastP; + unsigned char lastQ; + unsigned char lastS; + unsigned char pat_loop_row; + unsigned char pat_loop_count; + unsigned char pat_loop_end_row; /* Used to catch infinite pattern loops */ + unsigned char lastW; + + unsigned char xm_lastE1; + unsigned char xm_lastE2; + unsigned char xm_lastEA; + unsigned char xm_lastEB; + unsigned char xm_lastX1; + unsigned char xm_lastX2; + + IT_PLAYING *playing; + +#ifdef BIT_ARRAY_BULLSHIT + void * played_patjump; + int played_patjump_order; +#endif + + //int output; +}; + + + +struct DUMB_IT_SIGRENDERER +{ + DUMB_IT_SIGDATA *sigdata; + + int n_channels; + + int resampling_quality; + + unsigned char globalvolume; + signed char globalvolslide; + + int tempo; + signed char temposlide; + + IT_CHANNEL channel[DUMB_IT_N_CHANNELS]; + + IT_PLAYING *playing[DUMB_IT_N_NNA_CHANNELS]; + + int tick; + int speed; + int rowcount; + + int order; /* Set to -1 if the song is terminated by a callback. */ + int row; + int processorder; + int processrow; + int breakrow; + + int restart_position; + + int n_rows; + + IT_ENTRY *entry_start; + IT_ENTRY *entry; + IT_ENTRY *entry_end; + + long time_left; /* Time before the next tick is processed */ + int sub_time_left; + + DUMB_CLICK_REMOVER **click_remover; + + IT_CALLBACKS *callbacks; + +#ifdef BIT_ARRAY_BULLSHIT + /* bit array, which rows are played, only checked by pattern break or loop commands */ + void * played; +#endif + + long gvz_time; + int gvz_sub_time; + + int ramp_style; + + //int max_output; +}; + + + +struct IT_CHECKPOINT +{ + IT_CHECKPOINT *next; + long time; + DUMB_IT_SIGRENDERER *sigrenderer; +}; + + + +struct IT_CALLBACKS +{ + int (*loop)(void *data); + void *loop_data; + /* Return 1 to prevent looping; the music will terminate abruptly. If you + * want to make the music stop but allow samples to fade (beware, as they + * might not fade at all!), use dumb_it_sr_set_speed() and set the speed + * to 0. Note that xm_speed_zero() will not be called if you set the + * speed manually, and also that this will work for IT and S3M files even + * though the music can't stop in this way by itself. + */ + + int (*xm_speed_zero)(void *data); + void *xm_speed_zero_data; + /* Return 1 to terminate the mod, without letting samples fade. */ + + int (*midi)(void *data, int channel, unsigned char byte); + void *midi_data; + /* Return 1 to prevent DUMB from subsequently interpreting the MIDI bytes + * itself. In other words, return 1 if the Zxx macros in an IT file are + * controlling filters and shouldn't be. + */ + + int (*global_volume_zero)(void *data); + void *global_volume_zero_data; + /* Return 1 to terminate the module when global volume is set to zero. */ +}; + + + +void _dumb_it_end_sigrenderer(sigrenderer_t *sigrenderer); +void _dumb_it_unload_sigdata(sigdata_t *vsigdata); + +extern DUH_SIGTYPE_DESC _dumb_sigtype_it; + + + +#define XM_APPREGIO 0 +#define XM_PORTAMENTO_UP 1 +#define XM_PORTAMENTO_DOWN 2 +#define XM_TONE_PORTAMENTO 3 +#define XM_VIBRATO 4 +#define XM_VOLSLIDE_TONEPORTA 5 +#define XM_VOLSLIDE_VIBRATO 6 +#define XM_TREMOLO 7 +#define XM_SET_PANNING 8 +#define XM_SAMPLE_OFFSET 9 +#define XM_VOLUME_SLIDE 10 /* A */ +#define XM_POSITION_JUMP 11 /* B */ +#define XM_SET_CHANNEL_VOLUME 12 /* C */ +#define XM_PATTERN_BREAK 13 /* D */ +#define XM_E 14 /* E */ +#define XM_SET_TEMPO_BPM 15 /* F */ +#define XM_SET_GLOBAL_VOLUME 16 /* G */ +#define XM_GLOBAL_VOLUME_SLIDE 17 /* H */ +#define XM_KEY_OFF 20 /* K (undocumented) */ +#define XM_SET_ENVELOPE_POSITION 21 /* L */ +#define XM_PANNING_SLIDE 25 /* P */ +#define XM_MULTI_RETRIG 27 /* R */ +#define XM_TREMOR 29 /* T */ +#define XM_X 33 /* X */ +#define XM_N_EFFECTS (10+26) + +#define XM_E_SET_FILTER 0x0 +#define XM_E_FINE_PORTA_UP 0x1 +#define XM_E_FINE_PORTA_DOWN 0x2 +#define XM_E_SET_GLISSANDO_CONTROL 0x3 +#define XM_E_SET_VIBRATO_CONTROL 0x4 +#define XM_E_SET_FINETUNE 0x5 +#define XM_E_SET_LOOP 0x6 +#define XM_E_SET_TREMOLO_CONTROL 0x7 +#define XM_E_SET_PANNING 0x8 +#define XM_E_RETRIG_NOTE 0x9 +#define XM_E_FINE_VOLSLIDE_UP 0xA +#define XM_E_FINE_VOLSLIDE_DOWN 0xB +#define XM_E_NOTE_CUT 0xC +#define XM_E_NOTE_DELAY 0xD +#define XM_E_PATTERN_DELAY 0xE + +#define XM_X_EXTRAFINE_PORTA_UP 1 +#define XM_X_EXTRAFINE_PORTA_DOWN 2 + +/* To make my life a bit simpler during conversion, effect E:xy is converted + * to effect number EBASE+x:y. The same applies to effect X, and IT's S. That + * way, these effects can be manipulated like regular effects. + */ +#define EBASE (XM_N_EFFECTS) +#define XBASE (EBASE+16) +#define SBASE (IT_N_EFFECTS) + +#define EFFECT_VALUE(x, y) (((x)<<4)|(y)) +#define HIGH(v) ((v)>>4) +#define LOW(v) ((v)&0x0F) +#define SET_HIGH(v, x) v = (((x)<<4)|((v)&0x0F)) +#define SET_LOW(v, y) v = (((v)&0xF0)|(y)) +#define BCD_TO_NORMAL(v) (HIGH(v)*10+LOW(v)) + + + +#if 0 +unsigned char **_dumb_malloc2(int w, int h); +void _dumb_free2(unsigned char **line); +#endif + +void _dumb_it_xm_convert_effect(int effect, int value, IT_ENTRY *entry, int mod); +int _dumb_it_fix_invalid_orders(DUMB_IT_SIGDATA *sigdata); + + +#define PTM_APPREGIO 0 +#define PTM_PORTAMENTO_UP 1 +#define PTM_PORTAMENTO_DOWN 2 +#define PTM_TONE_PORTAMENTO 3 +#define PTM_VIBRATO 4 +#define PTM_VOLSLIDE_TONEPORTA 5 +#define PTM_VOLSLIDE_VIBRATO 6 +#define PTM_TREMOLO 7 +#define PTM_SAMPLE_OFFSET 9 +#define PTM_VOLUME_SLIDE 10 /* A */ +#define PTM_POSITION_JUMP 11 /* B */ +#define PTM_SET_CHANNEL_VOLUME 12 /* C */ +#define PTM_PATTERN_BREAK 13 /* D */ +#define PTM_E 14 /* E */ +#define PTM_SET_TEMPO_BPM 15 /* F */ +#define PTM_SET_GLOBAL_VOLUME 16 /* G */ +#define PTM_RETRIGGER 17 /* H */ +#define PTM_FINE_VIBRATO 18 /* I */ +#define PTM_NOTE_SLIDE_UP 19 /* J */ +#define PTM_NOTE_SLIDE_DOWN 20 /* K */ +#define PTM_NOTE_SLIDE_UP_RETRIG 21 /* L */ +#define PTM_NOTE_SLIDE_DOWN_RETRIG 22 /* M */ +#define PTM_N_EFFECTS 23 + +#define PTM_E_FINE_PORTA_DOWN 0x1 +#define PTM_E_FINE_PORTA_UP 0x2 +#define PTM_E_SET_VIBRATO_CONTROL 0x4 +#define PTM_E_SET_FINETUNE 0x5 +#define PTM_E_SET_LOOP 0x6 +#define PTM_E_SET_TREMOLO_CONTROL 0x7 +#define PTM_E_SET_PANNING 0x8 +#define PTM_E_RETRIG_NOTE 0x9 +#define PTM_E_FINE_VOLSLIDE_UP 0xA +#define PTM_E_FINE_VOLSLIDE_DOWN 0xB +#define PTM_E_NOTE_CUT 0xC +#define PTM_E_NOTE_DELAY 0xD +#define PTM_E_PATTERN_DELAY 0xE + +/* To make my life a bit simpler during conversion, effect E:xy is converted + * to effect number EBASE+x:y. The same applies to effect X, and IT's S. That + * way, these effects can be manipulated like regular effects. + */ +#define PTM_EBASE (PTM_N_EFFECTS) + +void _dumb_it_ptm_convert_effect(int effect, int value, IT_ENTRY *entry); + +long _dumb_it_read_sample_data_adpcm4(IT_SAMPLE *sample, DUMBFILE *f); + +#define min(x,y) ((x)<(y)?(x):(y)) +#define max(x,y) ((x)>(y)?(x):(y)) + +#endif /* INTERNAL_IT_H */ |