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godot/modules/chibi/cp_player_data_effects.cpp
Rémi Verschelde 93ab45b6b5 Style: Fix whole-line commented code 
They do not play well with clang-format which aligns the `//` part
with the rest of the code block, thus producing badly indented commented code.
2017-01-14 14:52:23 +01:00

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/*************************************************************************/
/* cp_player_data_effects.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "cp_player_data.h"
/**********************
complex effects
***********************/
#define RANDOM_MAX 2147483647
static inline int32_t cp_random_generate(int32_t *seed) {
int32_t k;
int32_t s = (int32_t)(*seed);
if (s == 0)
s = 0x12345987;
k = s / 127773;
s = 16807 * (s - k * 127773) - 2836 * k;
if (s < 0)
s += 2147483647;
(*seed) = (int32_t)s;
return (int32_t)(s & RANDOM_MAX);
}
void CPPlayer::do_vibrato(int p_track,bool fine) {
uint8_t q;
uint16_t temp=0;
if ((control.ticks_counter==0) && control.channel[p_track].row_has_note) control.channel[p_track].vibrato_position=0;
q=(control.channel[p_track].vibrato_position>>2)&0x1f;
switch (control.channel[p_track].vibrato_type) {
case 0: /* sine */
temp=vibrato_table[q];
break;
case 1: /* square wave */
temp=255;
break;
case 2: /* ramp down */
q<<=3;
if (control.channel[p_track].vibrato_position<0) q=255-q;
temp=q;
break;
case 3: /* random */
temp=cp_random_generate(&control.random_seed) %256;//getrandom(256);
break;
}
temp*=control.channel[p_track].vibrato_depth;
if (song->has_old_effects()) {
temp>>=7;
} else {
temp>>=8;
}
if (!fine) temp<<=2;
if (control.channel[p_track].vibrato_position>=0) {
control.channel[p_track].period=control.channel[p_track].aux_period+temp;
} else {
control.channel[p_track].period=control.channel[p_track].aux_period-temp;
}
if (!song->has_old_effects() || control.ticks_counter) control.channel[p_track].vibrato_position+=control.channel[p_track].vibrato_speed;
}
void CPPlayer::do_pitch_slide_down(int p_track,uint8_t inf) {
uint8_t hi,lo;
if (inf) control.channel[p_track].pitch_slide_info=inf;
else inf=control.channel[p_track].pitch_slide_info;
hi=inf>>4;
lo=inf&0xf;
if (hi==0xf) {
if (!control.ticks_counter) control.channel[p_track].aux_period+=(uint16_t)lo<<2;
} else if (hi==0xe) {
if (!control.ticks_counter) control.channel[p_track].aux_period+=lo;
} else {
if (control.ticks_counter) control.channel[p_track].aux_period+=(uint16_t)inf<<2;
}
}
void CPPlayer::do_pitch_slide_up(int p_track,uint8_t inf) {
uint8_t hi,lo;
if (inf) control.channel[p_track].pitch_slide_info=inf;
else inf=control.channel[p_track].pitch_slide_info;
hi=inf>>4;
lo=inf&0xf;
if (hi==0xf) {
if (!control.ticks_counter) control.channel[p_track].aux_period-=(uint16_t)lo<<2;
} else if (hi==0xe) {
if (!control.ticks_counter) control.channel[p_track].aux_period-=lo;
} else {
if (control.ticks_counter) control.channel[p_track].aux_period-=(uint16_t)inf<<2;
}
}
void CPPlayer::do_pitch_slide_to_note(int p_track) {
if (control.ticks_counter) {
int dist;
/* We have to slide a->period towards a->wantedperiod, compute the
difference between those two values */
dist=control.channel[p_track].period-control.channel[p_track].slide_to_period;
/* if they are equal or if portamentospeed is too big... */
if ((!dist)||((control.channel[p_track].portamento_speed<<2)>cp_intabs(dist))) {
/* ... make tmpperiod equal tperiod */
control.channel[p_track].aux_period=control.channel[p_track].period=control.channel[p_track].slide_to_period;
} else {
if (dist>0) {
control.channel[p_track].aux_period-=control.channel[p_track].portamento_speed<<2;
control.channel[p_track].period-=control.channel[p_track].portamento_speed<<2; /* dist>0 slide up */
} else {
control.channel[p_track].aux_period+=control.channel[p_track].portamento_speed<<2;
control.channel[p_track].period+=control.channel[p_track].portamento_speed<<2; /* dist<0 slide down */
}
}
} else {
control.channel[p_track].aux_period=control.channel[p_track].period;
}
}
void CPPlayer::do_tremor(int p_track) {
uint8_t on,off,inf;
inf=control.channel[p_track].current_parameter;
if (inf) {
control.channel[p_track].tremor_info=inf;
} else {
inf= control.channel[p_track].tremor_info;
if (!inf) return;
}
//if (!control.ticks_counter) return;
on=(inf>>4);
off=(inf&0xf);
control.channel[p_track].tremor_position%=(on+off);
control.channel[p_track].volume=(control.channel[p_track].tremor_position<on)?control.channel[p_track].aux_volume:0;
control.channel[p_track].tremor_position++;
}
void CPPlayer::do_pan_slide(int p_track) {
uint8_t lo,hi,inf;
int16_t pan;
inf=control.channel[p_track].current_parameter;
if (inf) control.channel[p_track].channel_pan_slide_info=inf;
else inf=control.channel[p_track].channel_pan_slide_info;
lo=inf&0xf;
hi=inf>>4;
pan=(control.channel[p_track].panning==PAN_SURROUND)?PAN_CENTER:control.channel[p_track].panning;
if (!hi)
pan+=lo<<2;
else
if (!lo) {
pan-=hi<<2;
} else
if (hi==0xf) {
if (!control.ticks_counter) pan+=lo<<2;
} else
if (lo==0xf) {
if (!control.ticks_counter) pan-=hi<<2;
}
//this sets both chan & voice paning
control.channel[p_track].panning=(pan<PAN_LEFT)?PAN_LEFT:(pan>PAN_RIGHT?PAN_RIGHT:pan);
control.channel[p_track].channel_panning=control.channel[p_track].panning;
}
void CPPlayer::do_volume_slide(int p_track,int inf) {
uint8_t hi,lo;
lo=inf&0xf;
hi=inf>>4;
if (!lo) {
if ((control.ticks_counter)) control.channel[p_track].aux_volume+=hi;
} else if (!hi) {
if ((control.ticks_counter)) control.channel[p_track].aux_volume-=lo;
} else if (lo==0xf) {
if (!control.ticks_counter) control.channel[p_track].aux_volume+=(hi?hi:0xf);
} else if (hi==0xf) {
if (!control.ticks_counter) control.channel[p_track].aux_volume-=(lo?lo:0xf);
} else return;
if (control.channel[p_track].aux_volume<0) {
control.channel[p_track].aux_volume=0;
} else if (control.channel[p_track].aux_volume>64) {
control.channel[p_track].aux_volume=64;
}
}
void CPPlayer::do_channel_volume_slide(int p_track) {
uint8_t lo, hi,inf;
inf=control.channel[p_track].current_parameter;
if (inf) control.channel[p_track].channel_volume_slide_info=inf;
inf=control.channel[p_track].channel_volume_slide_info;
lo=inf&0xf;
hi=inf>>4;
if (!hi)
control.channel[p_track].channel_volume-=lo;
else
if (!lo) {
control.channel[p_track].channel_volume+=hi;
} else
if (hi==0xf) {
if (!control.ticks_counter) control.channel[p_track].channel_volume-=lo;
} else
if (lo==0xf) {
if (!control.ticks_counter) control.channel[p_track].channel_volume+=hi;
}
if (control.channel[p_track].channel_volume<0) control.channel[p_track].channel_volume=0;
if (control.channel[p_track].channel_volume>64) control.channel[p_track].channel_volume=64;
}
void CPPlayer::do_tremolo(int p_track) {
uint8_t q;
int16_t temp=0;
if ((control.ticks_counter==0) && control.channel[p_track].row_has_note) control.channel[p_track].tremolo_position=0;
q=(control.channel[p_track].tremolo_position>>2)&0x1f;
switch (control.channel[p_track].tremolo_type) {
case 0: /* sine */
temp=vibrato_table[q];
break;
case 1: /* ramp down */
q<<=3;
if (control.channel[p_track].tremolo_position<0) q=255-q;
temp=q;
break;
case 2: /* square wave */
temp=255;
break;
case 3: /* random */
temp=cp_random_generate(&control.random_seed) % 256;//getrandom(256);
break;
}
temp*=control.channel[p_track].tremolo_depth;
temp>>=7;
if (control.channel[p_track].tremolo_position>=0) {
control.channel[p_track].volume=control.channel[p_track].aux_volume+temp;
if (control.channel[p_track].volume>64) control.channel[p_track].volume=64;
} else {
control.channel[p_track].volume=control.channel[p_track].aux_volume-temp;
if (control.channel[p_track].volume<0) control.channel[p_track].volume=0;
}
/*if (control.ticks_counter)*/ control.channel[p_track].tremolo_position+=control.channel[p_track].tremolo_speed;
}
void CPPlayer::do_arpegio(int p_track) {
uint8_t note,dat;
//note=control.channel[p_track].note;
note=0;
if (control.channel[p_track].current_parameter) {
control.channel[p_track].arpegio_info=control.channel[p_track].current_parameter;
}
dat=control.channel[p_track].arpegio_info;
if (dat) {
switch (control.ticks_counter%3) {
case 1: {
note+=(dat>>4);
} break;
case 2: {
note+=(dat&0xf);
} break;
}
if (song->has_linear_slides()) {
control.channel[p_track].period=control.channel[p_track].aux_period-cp_intabs(get_period((uint16_t)46,0)-get_period((uint16_t)44,0))*note;
} else if (control.channel[p_track].sample_ptr) {
control.channel[p_track].period=get_period( (((uint16_t)control.channel[p_track].note)+note)<<1,CPSampleManager::get_singleton()->get_c5_freq( (control.channel[p_track].sample_ptr->get_sample_data())));
}
control.channel[p_track].has_own_period=true;
}
}
void CPPlayer::do_retrig(int p_track) {
uint8_t inf;
inf=control.channel[p_track].current_parameter;
if (inf) {
control.channel[p_track].retrig_volslide=inf>>4;
control.channel[p_track].retrig_speed=inf&0xf;
}
/* only retrigger if low nibble > 0 */
if ( control.channel[p_track].retrig_speed>0) {
if ( !control.channel[p_track].retrig_counter ) {
/* when retrig counter reaches 0, reset counter and restart the
sample */
if (control.channel[p_track].kick!=KICK_NOTE) control.channel[p_track].kick=KICK_NOTEOFF;
control.channel[p_track].retrig_counter=control.channel[p_track].retrig_speed;
if ((control.ticks_counter)/*||(pf->flags&UF_S3MSLIDES)*/) {
switch (control.channel[p_track].retrig_volslide) {
case 1:
case 2:
case 3:
case 4:
case 5:
control.channel[p_track].aux_volume-=(1<<(control.channel[p_track].retrig_volslide-1));
break;
case 6:
control.channel[p_track].aux_volume=(2*control.channel[p_track].aux_volume)/3;
break;
case 7:
control.channel[p_track].aux_volume>>=1;
break;
case 9:
case 0xa:
case 0xb:
case 0xc:
case 0xd:
control.channel[p_track].aux_volume+=(1<<(control.channel[p_track].retrig_volslide-9));
break;
case 0xe:
control.channel[p_track].aux_volume=(3*control.channel[p_track].aux_volume)>>1;
break;
case 0xf:
control.channel[p_track].aux_volume=control.channel[p_track].aux_volume<<1;
break;
}
if (control.channel[p_track].aux_volume<0) control.channel[p_track].aux_volume=0;
else if (control.channel[p_track].aux_volume>64) control.channel[p_track].aux_volume=64;
}
}
control.channel[p_track].retrig_counter--; /* countdown */
}
}
void CPPlayer::do_global_volume_slide(int p_track) {
uint8_t lo,hi,inf;
inf=control.channel[p_track].current_parameter;
if (inf) control.channel[p_track].global_volume_slide_info=inf;
inf=control.channel[p_track].global_volume_slide_info;
lo=inf&0xf;
hi=inf>>4;
if (!lo) {
if (control.ticks_counter) control.global_volume+=hi;
} else
if (!hi) {
if (control.ticks_counter) control.global_volume-=lo;
} else
if (lo==0xf) {
if (!control.ticks_counter) control.global_volume+=hi;
} else
if (hi==0xf) {
if (!control.ticks_counter) control.global_volume-=lo;
}
if (control.global_volume<0) control.global_volume=0;
if (control.global_volume>128) control.global_volume=128;
}
void CPPlayer::do_panbrello(int p_track) {
uint8_t q;
int32_t temp=0;
q=control.channel[p_track].panbrello_position;
switch (control.channel[p_track].panbrello_type) {
case 0: {/* sine */
temp=panbrello_table[q];
} break;
case 1: {/* square wave */
temp=(q<0x80)?64:0;
} break;
case 2: {/* ramp down */
q<<=3;
temp=q;
} break;
case 3: {/* random */
if (control.channel[p_track].panbrello_position>=control.channel[p_track].panbrello_speed) {
control.channel[p_track].panbrello_position=0;
temp=cp_random_generate(&control.random_seed)%256;//getrandom(256);
}
} break;
}
temp=temp*(int)control.channel[p_track].panbrello_depth/0xF;
temp<<=1;
if (control.channel[p_track].channel_panning!=PAN_SURROUND)
temp+=control.channel[p_track].channel_panning;
control.channel[p_track].panning=(temp<PAN_LEFT)?PAN_LEFT:(temp>PAN_RIGHT?PAN_RIGHT:temp);
control.channel[p_track].panbrello_position+=control.channel[p_track].panbrello_speed;
}
/******************
S effect
*******************/
void CPPlayer::do_effect_S(int p_track) {
uint8_t inf,c,dat;
dat=control.channel[p_track].current_parameter;
inf=dat&0xf;
c=dat>>4;
if (!dat) {
c=control.channel[p_track].current_S_effect;
inf=control.channel[p_track].current_S_data;
} else {
control.channel[p_track].current_S_effect=c;
control.channel[p_track].current_S_data=inf;
}
switch (c) {
case 1: {/* S1x set glissando voice */
// this is unsupported in IT!
control.channel[p_track].chorus_send=inf*0xFF/0xF;
}break;
case 2: /* S2x set finetune */
//Also not supported!
break;
case 3: /* S3x set vibrato waveform */
if (inf<4) control.channel[p_track].vibrato_type=inf;
break;
case 4: /* S4x set tremolo waveform */
if (inf<4) control.channel[p_track].tremolo_type=inf;
break;
case 5: /* S5x panbrello */
if (inf<4) control.channel[p_track].panbrello_type=inf;
break;
case 6: {/* S6x delay x number of frames (patdly) */
if (control.ticks_counter) break;
if (!control.pattern_delay_2) control.pattern_delay_1=inf+1; /* only once, when vbtick=0 */
} break;
case 7: /* S7x instrument / NNA commands */
if (!song->has_instruments())
break;
switch(inf) {
case 0x3: {
control.channel[p_track].NNA_type=CPInstrument::NNA_NOTE_CUT;
} break;
case 0x4: {
control.channel[p_track].NNA_type=CPInstrument::NNA_NOTE_CONTINUE;
} break;
case 0x5: {
control.channel[p_track].NNA_type=CPInstrument::NNA_NOTE_OFF;
} break;
case 0x6: {
control.channel[p_track].NNA_type=CPInstrument::NNA_NOTE_FADE;
} break;
case 0x7: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->volume_envelope_ctrl.active=false;
} break;
case 0x8: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->volume_envelope_ctrl.active=true;
} break;
case 0x9: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->panning_envelope_ctrl.active=false;
} break;
case 0xA: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->panning_envelope_ctrl.active=true;
} break;
case 0xB: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->pitch_envelope_ctrl.active=false;
} break;
case 0xC: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->pitch_envelope_ctrl.active=true;
} break;
} break;
break;
case 8: {/* S8x set panning position */
//if (pf->panflag) {
if (inf<=8) inf<<=4;
else inf*=17;
control.channel[p_track].panning=control.channel[p_track].channel_panning=inf;
// }
} break;
case 9: { /* S9x set surround sound */
//if (pf->panflag)
control.channel[p_track].panning=control.channel[p_track].channel_panning=PAN_SURROUND;
} break;
case 0xA:{ /* SAy set high order sample offset yxx00h */
if (control.channel[p_track].current_parameter) control.channel[p_track].hi_offset=(int32_t)inf<<16;
control.channel[p_track].sample_start_index=control.channel[p_track].hi_offset|control.channel[p_track].lo_offset;
} break;
case 0xB: { /* SBx pattern loop */
if (control.ticks_counter) break;
if (inf) { /* set reppos or repcnt ? */
/* set repcnt, so check if repcnt already is set, which means we
are already looping */
if (control.channel[p_track].pattern_loop_count>0)
control.channel[p_track].pattern_loop_count--; /* already looping, decrease counter */
else {
control.channel[p_track].pattern_loop_count=inf; /* not yet looping, so set repcnt */
}
if (control.channel[p_track].pattern_loop_count>0) { /* jump to reppos if repcnt>0 */
control.position=control.previous_position; // This will also anulate any Cxx or break..
control.position.current_row=control.channel[p_track].pattern_loop_position;
control.position.forbid_jump=true;
}
} else {
control.channel[p_track].pattern_loop_position=control.position.current_row-1;
}
} break;
case 0xC: { /* SCx notecut */
if (control.ticks_counter>=inf) {
control.channel[p_track].aux_volume=0;
control.channel[p_track].note_end_flags|=END_NOTE_OFF;
control.channel[p_track].note_end_flags|=END_NOTE_KILL;
}
} break;
case 0xD: {/* SDx notedelay */
if (!control.ticks_counter) {
control.channel[p_track].note_delay=inf;
} else if (control.channel[p_track].note_delay) {
control.channel[p_track].note_delay--;
}
} break;
case 0xF: {/* SEx patterndelay */
if (control.ticks_counter) break;
if (!control.pattern_delay_2) control.pattern_delay_1=inf+1; /* only once, when vbtick=0 */
} break;
}
}
/*********************
volume effects
**********************/
void CPPlayer::run_volume_column_effects(int p_track) {
uint8_t param=control.channel[p_track].current_volume_parameter;
switch ('A'+control.channel[p_track].current_volume_command) {
case 'A': {
if (param>0) control.channel[p_track].volcol_volume_slide=param;
else param=control.channel[p_track].volcol_volume_slide;
do_volume_slide(p_track,param*0x10+0xF);
} break;
case 'B': {
if (param>0) control.channel[p_track].volcol_volume_slide=param;
else param=control.channel[p_track].volcol_volume_slide;
do_volume_slide(p_track,0xF0+param);
} break;
case 'C': {
if (param>0) control.channel[p_track].volcol_volume_slide=param;
else param=control.channel[p_track].volcol_volume_slide;
do_volume_slide(p_track,param*0x10);
} break;
case 'D': {
if (param>0) control.channel[p_track].volcol_volume_slide=param;
else param=control.channel[p_track].volcol_volume_slide;
do_volume_slide(p_track,param);
} break;
case 'E': {
do_pitch_slide_down(p_track,param<<2);
} break;
case 'F': {
do_pitch_slide_up(p_track,param<<2);
} break;
case 'G': {
const uint8_t slide_table[]={0,1,4,8,16,32,64,96,128,255};
if (param) {
control.channel[p_track].portamento_speed=slide_table[param];
}
if (control.channel[p_track].period && (control.channel[p_track].old_note<=120)) {
if ( (!control.ticks_counter) && (control.channel[p_track].new_instrument) ){
//control.channel[p_track].kick=KICK_NOTE;
//control.channel[p_track].sample_start_index=0; // < am i stupid?
} else {
control.channel[p_track].kick=(control.channel[p_track].kick==KICK_NOTE)?KICK_ENVELOPE:KICK_NOTHING;
do_pitch_slide_to_note(p_track);
control.channel[p_track].has_own_period=true;
}
}
} break;
case 'H': {
if (!control.ticks_counter) {
if (param&0x0f) control.channel[p_track].vibrato_depth=param;
}
control.channel[p_track].doing_vibrato=true;
if (control.external_vibrato) break;
if (control.channel[p_track].period) {
do_vibrato(p_track,false);
control.channel[p_track].has_own_period=true;
}
} break;
}
}
/*********************
table
**********************/
void CPPlayer::run_effects(int p_track) {
switch ('A'+control.channel[p_track].current_command) {
case 'A': {
if ((control.ticks_counter>0) || (control.pattern_delay_2>0)) break;
int new_speed;
new_speed=control.channel[p_track].current_parameter % 128;
if (new_speed>0) {
control.speed=new_speed;
control.ticks_counter=0;
}
} break;
case 'B': {
int next_order;
if (control.ticks_counter || control.position.forbid_jump) break;
control.position.current_row=0;
if (control.play_mode==PLAY_PATTERN) break;
next_order=get_song_next_order_idx(song, (int)control.channel[p_track].current_parameter-1);
if (next_order!=-1) {
// Do we have a "next order?"
control.position.current_pattern=song->get_order(next_order);
control.position.force_next_order=next_order;
} else {
// no, probably the user deleted the orderlist.
control.play_mode=PLAY_NOTHING;
reset();
}
} break;
case 'C': {
int next_order;
if (control.ticks_counter || control.position.forbid_jump) break;
control.position.current_row=control.channel[p_track].current_parameter;
if (control.play_mode==PLAY_PATTERN) {
if (control.position.current_row>=song->get_pattern(control.position.current_pattern)->get_length()) {
control.position.current_row=0;
}
break;
}
next_order=get_song_next_order_idx(song, (int)control.position.current_order);
if (next_order!=-1) {
// Do we have a "next order?"
control.position.current_pattern=song->get_order(next_order);
if (control.position.current_row>=song->get_pattern(song->get_order(next_order))->get_length()) {
control.position.current_row=0;
}
control.position.force_next_order=next_order;
} else {
// no, probably the user deleted the orderlist.
control.play_mode=PLAY_NOTHING;
reset();
}
} break;
case 'D': {
uint8_t inf ;
//explicitslides=1;
inf=control.channel[p_track].current_parameter;
if (inf) control.channel[p_track].volume_slide_info=inf;
else inf=control.channel[p_track].volume_slide_info;
do_volume_slide(p_track,inf);
} break;
case 'E': {
uint8_t inf;
inf=control.channel[p_track].current_parameter;
do_pitch_slide_down(p_track,inf);
} break;
case 'F': {
uint8_t inf;
inf=control.channel[p_track].current_parameter;
do_pitch_slide_up(p_track,inf);
} break;
case 'G': {
if (control.channel[p_track].current_parameter) {
control.channel[p_track].portamento_speed=control.channel[p_track].current_parameter;
}
if (control.channel[p_track].period && (control.channel[p_track].old_note<=120)) {
if ( (!control.ticks_counter) && (control.channel[p_track].new_instrument) ){
control.channel[p_track].kick=KICK_NOTE;
control.channel[p_track].sample_start_index=0;
} else {
control.channel[p_track].kick=(control.channel[p_track].kick==KICK_NOTE)?KICK_ENVELOPE:KICK_NOTHING;
}
do_pitch_slide_to_note(p_track);
control.channel[p_track].has_own_period=true;
}
} break;
case 'H': {
uint8_t dat;
control.channel[p_track].doing_vibrato=true;
dat=control.channel[p_track].current_parameter;
if (!control.ticks_counter) {
if (dat&0x0f) control.channel[p_track].vibrato_depth=dat&0xf;
if (dat&0xf0) control.channel[p_track].vibrato_speed=(dat&0xf0)>>2;
}
if (control.external_vibrato) break;
if (control.channel[p_track].period) {
do_vibrato(p_track,false);
control.channel[p_track].has_own_period=true;
}
} break;
case 'I': {
do_tremor(p_track);
control.channel[p_track].has_own_volume=true;
} break;
case 'J': {
do_arpegio(p_track);
} break;
case 'K': {
uint8_t inf ;
//explicitslides=1;
inf=control.channel[p_track].current_parameter;
control.channel[p_track].doing_vibrato=true;
if (inf) control.channel[p_track].volume_slide_info=inf;
else inf=control.channel[p_track].volume_slide_info;
do_volume_slide(p_track,inf);
if (control.external_vibrato) break;
if (control.channel[p_track].period) {
do_vibrato(p_track,false);
control.channel[p_track].has_own_period=true;
}
} break;
case 'L': {
uint8_t inf ;
//explicitslides=1;
inf=control.channel[p_track].current_parameter;
if (inf) control.channel[p_track].volume_slide_info=inf;
else inf=control.channel[p_track].volume_slide_info;
do_volume_slide(p_track,inf);
if (control.channel[p_track].period && (control.channel[p_track].old_note<=120)) {
if ( (!control.ticks_counter) && (control.channel[p_track].new_instrument) ){
control.channel[p_track].kick=KICK_NOTE;
control.channel[p_track].sample_start_index=0;
} else {
control.channel[p_track].kick=(control.channel[p_track].kick==KICK_NOTE)?KICK_ENVELOPE:KICK_NOTHING;
}
do_pitch_slide_to_note(p_track);
control.channel[p_track].has_own_period=true;
}
} break;
case 'M': {
control.channel[p_track].channel_volume=control.channel[p_track].current_parameter;
if (control.channel[p_track].channel_volume>64) control.channel[p_track].channel_volume=64;
else if (control.channel[p_track].channel_volume<0) control.channel[p_track].channel_volume=0;
} break;
case 'N': {
do_channel_volume_slide(p_track);
}
case 'O': {
if (!control.ticks_counter) {
if (control.channel[p_track].current_parameter) control.channel[p_track].lo_offset=(uint16_t)control.channel[p_track].current_parameter<<8;
control.channel[p_track].sample_start_index=control.channel[p_track].hi_offset|control.channel[p_track].lo_offset;
//if ((control.channel[p_track].sample_ptr!=NULL)&&(control.channel[p_track].sample_start_index>control.channel[p_track].sample_ptr->data.size)) {
//TODO, O effect
//a->start=a->s->flags&(SF_LOOP|SF_BIDI)?a->s->loopstart:a->s->length;
//}
}
} break;
case 'P': {
do_pan_slide(p_track);
} break;
case 'Q': {
do_retrig(p_track);
} break;
case 'R': {
uint8_t dat;
if (control.channel[p_track].current_parameter) {
control.channel[p_track].tremolo_info=control.channel[p_track].current_parameter;
}
dat=control.channel[p_track].tremolo_info;
if (!control.ticks_counter && dat) {
if (dat&0x0f) control.channel[p_track].tremolo_depth=dat&0xf;
if (dat&0xf0) control.channel[p_track].tremolo_speed=(dat&0xf0)>>2;
}
do_tremolo(p_track);
control.channel[p_track].has_own_volume=true;
} break;
case 'S': {
do_effect_S(p_track);
} break;
case 'T': {
uint8_t dat;
int16_t temp=control.tempo;
if (control.pattern_delay_2) return;
if (control.channel[p_track].current_parameter) {
control.channel[p_track].tempo_slide_info=control.channel[p_track].current_parameter;
}
dat=control.channel[p_track].tempo_slide_info;
if (dat>=0x20) {
if (control.ticks_counter) break;
control.tempo=dat;
} else {
if (!control.ticks_counter) break;
if (dat&0x10) {
temp+=(dat&0x0f);
} else {
temp-=dat;
}
control.tempo=(temp>255)?255:(temp<0x20?0x20:temp);
}
} break;
case 'U': {
uint8_t dat;
dat=control.channel[p_track].current_parameter;
control.channel[p_track].doing_vibrato=true;
if (!control.ticks_counter) {
if (dat&0x0f) control.channel[p_track].vibrato_depth=dat&0xf;
if (dat&0xf0) control.channel[p_track].vibrato_speed=(dat&0xf0)>>2;
}
if (control.external_vibrato) break;
if (control.channel[p_track].period) {
do_vibrato(p_track,true);
control.channel[p_track].has_own_period=true;
}
} break;
case 'V': {
control.global_volume=control.channel[p_track].current_parameter;
if (control.global_volume>128) control.global_volume=128;
} break;
case 'W': {
do_global_volume_slide(p_track);
} break;
case 'X': {
//sets both channel and current
control.channel[p_track].channel_panning=control.channel[p_track].current_parameter;
control.channel[p_track].panning=control.channel[p_track].current_parameter;
} break;
case 'Y': {
uint8_t dat;
if (control.channel[p_track].current_parameter) {
control.channel[p_track].panbrello_info=control.channel[p_track].current_parameter;
}
dat=control.channel[p_track].panbrello_info;
if (!control.ticks_counter) {
if (dat&0x0f) control.channel[p_track].panbrello_depth=(dat&0xf);
if (dat&0xf0) control.channel[p_track].panbrello_speed=(dat&0xf0)>>4;
}
//if (pf->panflag)
if (control.channel[p_track].panning!=PAN_SURROUND)do_panbrello(p_track);
} break;
case 'Z': {
//I DO! cuttoff!
uint16_t dat=control.channel[p_track].current_parameter;
if (dat<0x80) {
control.channel[p_track].filter.it_cutoff=dat*2;
if (control.channel[p_track].filter.it_cutoff>0x80)
control.channel[p_track].filter.it_cutoff++;
} else if (dat<0x90) {
control.channel[p_track].filter.it_reso=(dat-0x80)*0x10;
} else {
control.channel[p_track].reverb_send=(dat-0x90)*255/0x6F;
}
} break;
}
}
void CPPlayer::pre_process_effects() {
// MP_VOICE *aout;
int i;
for (i=0;i<CPPattern::WIDTH;i++) {
//a=&pf->control[mp_channel];
// if ((aout=a->slave)) {
// a->fadevol=aout->fadevol;
// a->period=aout->period;
// if (a->kick==KICK_KEYOFF) a->keyoff=aout->keyoff;
//}
//if (!a->row) continue;
//UniSetRow(a->row);
control.channel[i].has_own_period=false;
control.channel[i].has_own_volume=false;
control.channel[i].doing_vibrato=false;
//explicitslides=0;
//pt_playeffects();
if (control.ticks_counter<control.speed) {
run_effects(i);
run_volume_column_effects(i);
}
/* continue volume slide if necessary for XM and IT */
//if (pf->flags&UF_BGSLIDES) {
// if (!explicitslides && a->sliding)
// DoS3MVolSlide(0);
// else if (a->tmpvolume) a->sliding=explicitslides;
//}
if (!control.channel[i].has_own_period) control.channel[i].period=control.channel[i].aux_period;
if (!control.channel[i].has_own_volume) control.channel[i].volume=control.channel[i].aux_volume;
if ((control.channel[i].sample_ptr!=NULL) && !(song->has_instruments() && (control.channel[i].instrument_ptr==NULL))) {
if (song->has_instruments()) {
control.channel[i].output_volume=
(control.channel[i].volume*control.channel[i].sample_ptr->get_global_volume()*control.channel[i].instrument_ptr->get_volume_global_amount())/2048;
control.channel[i].output_volume=control.channel[i].output_volume*control.channel[i].random_volume_variation/100;
} else {
control.channel[i].output_volume=
(control.channel[i].volume*control.channel[i].sample_ptr->get_global_volume())>>4;
}
if (control.channel[i].output_volume>256) {
control.channel[i].output_volume=256;
} else if (control.channel[i].output_volume<0) {
control.channel[i].output_volume=0;
}
}
}
}
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