ref: 7da945b75c3bd48821dbc2cfb65b886f80fa501e
dir: /src/it/ptmeffect.c/
/* _______ ____ __ ___ ___
* \ _ \ \ / \ / \ \ / / ' ' '
* | | \ \ | | || | \/ | . .
* | | | | | | || ||\ /| |
* | | | | | | || || \/ | | ' ' '
* | | | | | | || || | | . .
* | |_/ / \ \__// || | |
* /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
* / \
* / . \
* ptmeffect.c - Code for converting PTM / / \ \
* effects to IT effects. | < / \_
* | \/ /\ /
* By Christopher Snowhill. Based on xmeffect.c \_ / > /
* by Julien Cugniere. | \ / /
* | ' /
* \__/
*/
#include <stdlib.h>
#include <string.h>
#include "dumb.h"
#include "internal/it.h"
void _dumb_it_ptm_convert_effect(int effect, int value, IT_ENTRY *entry) {
if (effect >= PTM_N_EFFECTS)
return;
/* Linearisation of the effect number... */
if (effect == PTM_E) {
effect = PTM_EBASE + HIGH(value);
value = LOW(value);
}
/* convert effect */
entry->mask |= IT_ENTRY_EFFECT;
switch (effect) {
case PTM_APPREGIO:
effect = IT_ARPEGGIO;
break;
case PTM_PORTAMENTO_UP:
effect = IT_PORTAMENTO_UP;
break;
case PTM_PORTAMENTO_DOWN:
effect = IT_PORTAMENTO_DOWN;
break;
case PTM_TONE_PORTAMENTO:
effect = IT_TONE_PORTAMENTO;
break;
case PTM_VIBRATO:
effect = IT_VIBRATO;
break;
case PTM_VOLSLIDE_TONEPORTA:
effect = IT_VOLSLIDE_TONEPORTA;
break;
case PTM_VOLSLIDE_VIBRATO:
effect = IT_VOLSLIDE_VIBRATO;
break;
case PTM_TREMOLO:
effect = IT_TREMOLO;
break;
case PTM_SAMPLE_OFFSET:
effect = IT_SET_SAMPLE_OFFSET;
break;
case PTM_VOLUME_SLIDE:
effect = IT_VOLUME_SLIDE;
break;
case PTM_POSITION_JUMP:
effect = IT_JUMP_TO_ORDER;
break;
case PTM_SET_CHANNEL_VOLUME:
effect = IT_SET_CHANNEL_VOLUME;
break;
case PTM_PATTERN_BREAK:
effect = IT_BREAK_TO_ROW;
break;
case PTM_SET_GLOBAL_VOLUME:
effect = IT_SET_GLOBAL_VOLUME;
break;
case PTM_RETRIGGER:
effect = IT_RETRIGGER_NOTE;
break;
case PTM_FINE_VIBRATO:
effect = IT_FINE_VIBRATO;
break;
/* TODO properly */
case PTM_NOTE_SLIDE_UP:
effect = IT_PTM_NOTE_SLIDE_UP;
break;
case PTM_NOTE_SLIDE_DOWN:
effect = IT_PTM_NOTE_SLIDE_DOWN;
break;
case PTM_NOTE_SLIDE_UP_RETRIG:
effect = IT_PTM_NOTE_SLIDE_UP_RETRIG;
break;
case PTM_NOTE_SLIDE_DOWN_RETRIG:
effect = IT_PTM_NOTE_SLIDE_DOWN_RETRIG;
break;
case PTM_SET_TEMPO_BPM:
effect = (value < 0x20) ? (IT_SET_SPEED) : (IT_SET_SONG_TEMPO);
break;
case PTM_EBASE + PTM_E_SET_FINETUNE:
effect = SBASE + IT_S_FINETUNE;
break; /** TODO */
case PTM_EBASE + PTM_E_SET_LOOP:
effect = SBASE + IT_S_PATTERN_LOOP;
break;
case PTM_EBASE + PTM_E_NOTE_CUT:
effect = SBASE + IT_S_DELAYED_NOTE_CUT;
break;
case PTM_EBASE + PTM_E_NOTE_DELAY:
effect = SBASE + IT_S_NOTE_DELAY;
break;
case PTM_EBASE + PTM_E_PATTERN_DELAY:
effect = SBASE + IT_S_PATTERN_DELAY;
break;
case PTM_EBASE + PTM_E_SET_PANNING:
effect = SBASE + IT_S_SET_PAN;
break;
case PTM_EBASE + PTM_E_FINE_VOLSLIDE_UP:
effect = IT_VOLUME_SLIDE;
value = EFFECT_VALUE(value, 0xF);
break;
case PTM_EBASE + PTM_E_FINE_VOLSLIDE_DOWN:
effect = IT_VOLUME_SLIDE;
value = EFFECT_VALUE(0xF, value);
break;
case PTM_EBASE + PTM_E_FINE_PORTA_UP:
effect = IT_PORTAMENTO_UP;
value = EFFECT_VALUE(0xF, value);
break;
case PTM_EBASE + PTM_E_FINE_PORTA_DOWN:
effect = IT_PORTAMENTO_DOWN;
value = EFFECT_VALUE(0xF, value);
break;
case PTM_EBASE + PTM_E_RETRIG_NOTE:
effect = IT_XM_RETRIGGER_NOTE;
value = EFFECT_VALUE(0, value);
break;
case PTM_EBASE + PTM_E_SET_VIBRATO_CONTROL:
effect = SBASE + IT_S_SET_VIBRATO_WAVEFORM;
value &= ~4; /** TODO: value&4 -> don't retrig wave */
break;
case PTM_EBASE + PTM_E_SET_TREMOLO_CONTROL:
effect = SBASE + IT_S_SET_TREMOLO_WAVEFORM;
value &= ~4; /** TODO: value&4 -> don't retrig wave */
break;
default:
/* user effect (often used in demos for synchronisation) */
entry->mask &= ~IT_ENTRY_EFFECT;
}
/* Inverse linearisation... */
if (effect >= SBASE && effect < SBASE + 16) {
value = EFFECT_VALUE(effect - SBASE, value);
effect = IT_S;
}
entry->effect = effect;
entry->effectvalue = value;
}