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pad-synth.jsfx
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pad-synth.jsfx
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/* Generated by: https://www.npmjs.com/package/jsfx-preprocessor */
desc:PadSynth (by Geraint Luff)
in_pin:Left
in_pin:Right
out_pin:Left
out_pin:Right
options:want_all_kb
slider1:0<-1,1,0.01>-Slider 1
slider2:0<-1,1,0.01>-Slider 2
slider3:0<-1,1,0.01>-Slider 3
slider4:0<-1,1,0.01>-Slider 4
slider5:0<-1,1,0.01>-Slider 5
slider6:0<-1,1,0.01>-Slider 6
slider7:0<-1,1,0.01>-Slider 7
slider8:0<-1,1,0.01>-Slider 8
import ui-lib.jsfx-inc
import ui-lib-compat.jsfx-inc
@init
// Configuration options:
// Feel free to change these, but you'll need to do a complete reset afterwards
// because many of them affect the memory layout.
options_forceduplicaterelease = 1;
options_generate_midside = 1;
options_wavetables_lowfreq = 50;
options_wavetables_highfreq = 4000;
options_wavetables_count = 18; // This is about one sample per 4 semitones
options_wavetables_samplerate = 48000; // Samples are rendered at this frequency regardless of project sample rate
options_wavetables_sampleslength = 65536; // Keeps the repetition just over a second - must be power of 2
options_polyphony = 64;
options_spreadsize = 1024;
options_polyphonic_aftertouch = 1;
//////////////// Setup and Memory Layout ////////////////
gfx_ext_retina = 1;
// can_recompute = 0;
// action_recompute = 0;
// recompute_index - zero initially;
recompute_chunk = 1; // Recompute at most one waveform per block, so that we don't freeze the UI completely
polyphony = options_polyphony;
invsrate = 1/srate;
function get_waveform_name(index) (
index == 0/*WAVEFORM:SAWTOOTH*/ ? "Sawtooth"
: index == 1/*WAVEFORM:TRIANGLE*/ ? "Triangle"
: index == 2/*WAVEFORM:SINE*/ ? "Sine"
: index == 3/*WAVEFORM:SQUARE*/ ? "Square"
: "(???)";
);
function get_warptype_name(index) (
index == 0/*WAVEFORM_WARPTYPE:POWER*/ ? "power"
: index == 1/*WAVEFORM_WARPTYPE:CLIP*/ ? "clip"
: index == 2/*WAVEFORM_WARPTYPE:TANH*/ ? "tanh(x)"
: index == 3/*WAVEFORM_WARPTYPE:SIN*/ ? "sin(x)"
: "(???)";
);
function mag_pow(x, p) (
x >= 0 ? pow(x, p) : -pow(-x, p);
);
function tanh(x) (
x >= 20 ? (
1;
) : x <= -20 ? (
-1;
) : (
(exp(2*x) - 1)/(exp(2*x) + 1);
);
);
function atanh(x) (
x >= 1 ? (
100
) : x <= -1 ? (
-100
) : (
0.5*log((1 + x)/(1 - x));
);
);
function get_waveform_value(pos) local(value, warpfactor) (
param_waveform_mod1strength > 0 ? (
pos = (pos + sin(pos*2*$pi + param_waveform_mod1phase)*param_waveform_mod1strength);
while (pos > 1) (pos -= 1);
while (pos < 0) (pos += 1);
);
param_waveform_type == 0/*WAVEFORM:SAWTOOTH*/ ? (
value = (pos > 0.5) ? (pos - 1)*2 : 2*pos;
) : param_waveform_type == 1/*WAVEFORM:TRIANGLE*/ ? (
value = pos < 0.25 ? pos*4
: pos < 0.75 ? 2 - pos*4
: (pos - 1)*4;
) : param_waveform_type == 2/*WAVEFORM:SINE*/ ? (
value = sin(pos*2*$pi);
) : param_waveform_type == 3/*WAVEFORM:SQUARE*/ ? (
value = pos < 0.5 ? -1 : 1;
) : 0;
param_waveform_warpamount > 0 ? (
warpfactor = exp(param_waveform_warpamount);
param_waveform_warptype == 3/*WAVEFORM_WARPTYPE:SIN*/ ? (
value = sin(asin(value)*warpfactor);
) : param_waveform_warptype == 1/*WAVEFORM_WARPTYPE:CLIP*/ ? (
value = max(-1, min(1, value*warpfactor));
) : param_waveform_warptype == 0/*WAVEFORM_WARPTYPE:POWER*/ ? (
value = 2*pow(0.5*value + 0.5, warpfactor) - 1;
) : param_waveform_warptype == 2/*WAVEFORM_WARPTYPE:TANH*/ ? (
value = tanh(atanh(value)*warpfactor);
);
);
value;
);
function calculate_waveform_spectrum() local(i, sum, rms) (
i = 0;
while (i < gen_spectrum_N) (
fftblock[i*2] = get_waveform_value(i/gen_spectrum_N);
fftblock[i*2 + 1] = 0;
i += 1;
);
fft(fftblock, gen_spectrum_N);
fft_permute(fftblock, gen_spectrum_N);
rms = 0;
i = 1;
while (i < gen_spectrum_N) (
rms += fftblock[i*2]*fftblock[i*2];
rms += fftblock[i*2 + 1]*fftblock[i*2 + 1];
i += 1;
);
rms = sqrt(rms/gen_spectrum_N/2);
i = 0;
while (i < gen_spectrum_N) (
sum = fftblock[i*2]*fftblock[i*2];
sum += fftblock[i*2 + 1]*fftblock[i*2 + 1];
gen_spectrum[i] = sqrt(sum)/rms;
i += 1;
);
);
function get_waveform_spectrum_amp(n) local(sum) (
n >= gen_spectrum_N/2 ? (
0;
) : (
gen_spectrum[n];
);
);
freemem = 0;
fftblock = freemem;
fft_big_working_space = fftblock + options_wavetables_sampleslength*2;
freemem = fft_big_working_space + 256;
// This factorises (Cooley-Tukey) a large FFT into smaller FFTs to get around REAPER's 32768 limit.
// "working_space" must be 2*sizeB big - if you're using fft_big()
function ifft_ab(block, sizeA, sizeB, working_space)
local(N, i, j, twiddle_amount, twiddle_r, twiddle_i, Nbits, shiftleftbits, shiftrightbits, bitmask, index1, source_index, target_index, bitmask, tmp_r, tmp_i)
(
N = sizeA*sizeB;
// Permute
Nbits = 1;
while ((1<<Nbits) < N) (
Nbits += 1;
);
shiftleftbits = 1; // This is the shift required to find the source index for a given target
bitmask = N - 1;
while ((1<<shiftleftbits) < sizeB) ( // NOTE: the FFT uses sizeA, the IFFT uses sizeB (inverse shift)
shiftleftbits += 1;
);
shiftrightbits = Nbits - shiftleftbits;
index1 = 1;
while (index1 < N) (
target_index = index1;
while (
target_index = ((target_index<<shiftleftbits)&bitmask) + (target_index>>shiftrightbits);
target_index > index1;
);
target_index == index1 ? ( // This index is the shortest in its permutation group
tmp_r = block[target_index*2];
tmp_i = block[target_index*2 + 1];
source_index = ((target_index<<shiftleftbits)&bitmask) + (target_index>>shiftrightbits);
while (source_index != index1) (
block[target_index*2] = block[source_index*2];
block[target_index*2 + 1] = block[source_index*2 + 1];
target_index = source_index;
source_index = ((target_index<<shiftleftbits)&bitmask) + (target_index>>shiftrightbits);
);
block[target_index*2] = tmp_r;
block[target_index*2 + 1] = tmp_i;
);
index1 += 1;
);
// Perform the in-place IFFTs
j = 0;
while (j < sizeB) (
fft_ipermute(block + j*sizeA*2, sizeA);
ifft(block + j*sizeA*2, sizeA);
j += 1;
);
i = 0;
// Perform the stepwise IFFTs
while (i < sizeA) (
j = 0;
// Copy to working area, with anti-twiddle factors
while (j < sizeB) (
twiddle_amount = i*j/N;
twiddle_r = cos(twiddle_amount*2*$pi);
twiddle_i = sin(twiddle_amount*2*$pi);
working_space[j*2] = block[(i + j*sizeA)*2]*twiddle_r - block[(i + j*sizeA)*2 + 1]*twiddle_i;
working_space[j*2 + 1] = block[(i + j*sizeA)*2]*twiddle_i + block[(i + j*sizeA)*2 + 1]*twiddle_r;
j += 1;
);
fft_ipermute(working_space, sizeB);
ifft(working_space, sizeB);
j = 0;
while (j < sizeB) (
block[(i + j*sizeA)*2] = working_space[j*2];
block[(i + j*sizeA)*2 + 1] = working_space[j*2 + 1];
j += 1;
);
i += 1;
);
);
// working_space must be 256 big (128 complex numbers), unless you're doing super-duper large (2^21 or higher) FFTs
// block and working space should not cross a 65536-boundary (well, depends on the actual size, but it's a good policy)
function ifft_big(block, N, working_space) local(sizeB) (
N > 32768 ? (
sizeB = 1<<7;
(N/sizeB) > 32768 ? sizeB = 1<<11;
(N/sizeB) > 32768 ? sizeB = 1<<13;
ifft_ab(block, N/sizeB, sizeB, working_space);
) : (
fft_ipermute(block, N);
ifft(block, N);
);
);
gen_spectrum_N = 1024;
gen_spectrum = freemem;
freemem = gen_spectrum + gen_spectrum_N*2;
spread_density = freemem;
spread_cumulative = spread_density + options_spreadsize;
freemem = spread_cumulative + options_spreadsize;
spread_mean = options_spreadsize/2;
spread_std = options_spreadsize/10;
function spread_update() local(i, d2, cumulative, sum, sum2) (
sum = sum2 = 0;
cumulative = 0;
i = 0;
while (i < options_spreadsize) (
d2 = spread_density[i]*spread_density[i];
cumulative += d2;
sum += d2*i;
sum2 += d2*i*i;
spread_cumulative[i] = cumulative;
i += 1;
);
cumulative ? (
spread_mean = sum/cumulative;
spread_std = sqrt(sum2/cumulative - spread_mean*spread_mean);
i = 0;
while (i < options_spreadsize) (
spread_cumulative[i] /= cumulative;
i += 1;
);
);
);
function get_spread_cumulative(std) local(index, rounded, ratio) (
index = spread_mean + std*spread_std;
rounded = floor(index);
ratio = index - rounded;
rounded < 0 ? (
0
) : rounded >= (options_spreadsize - 1) ? (
1
) : (
spread_cumulative[rounded] + ratio*(spread_cumulative[rounded + 1] - spread_cumulative[rounded]);
);
);
function get_spread_density(low_std, high_std) (
get_spread_cumulative(high_std) - get_spread_cumulative(low_std);
);
// Start with Gaussian density
function reset_spread_to_gaussian() local(i, std) (
i = 0;
while (i < options_spreadsize) (
std = (i/options_spreadsize - 0.5)*6;
spread_density[i] = exp(-std*std);//pow(abs(sin(exp(-std*std)*5)), 5);
i += 1;
);
spread_update();
);
needs_reset = 1;
i = 0;
while (i < options_spreadsize) (
spread_density[i] ? needs_reset = 0;
i += 1;
);
needs_reset ? reset_spread_to_gaussian();
freemem = ui_setup(freemem);
// Description of all effects in the system
fx_spec_start = freemem;
fx_spec_count = 7/*FX_SPECLIST_INDEX: */;
fx_spec_headerlength = 9/*FX_HEADER: NAME, MODCOUNT, FUNC_INIT, CONFIG_UI_FUNCTION, CONFIG_SWAP_FUNCTION, CONFIG_DELETE_FUNCTION, SETUP_NOTE_FUNCTION, PRE_EXEC_NOTE_FUNCTION, EXEC_NOTE_FUNCTION*/;
fx_spec_modlength = 3/*FX_MOD: RANGE, TYPE, NAME*/;
fx_spec_var_count = 10; // Maximum number of modulatable parameters
fx_spec_step = fx_spec_headerlength + fx_spec_modlength*fx_spec_var_count;
freemem = fx_spec_start + fx_spec_step*fx_spec_count;
fx_list_start = freemem;
//fx_list_count = 0; // Don't actually reset it here, it'll wipe all effects on playback restart!
fx_list_maxcount = 10;
fx_list_headerlength = 2/*FX: SPEC_INDEX, NAME*/;
fx_list_statelength = 16;
fx_list_step = fx_list_headerlength + fx_list_statelength;
freemem = fx_list_start + fx_list_step*fx_list_maxcount;
// First N string slots are reserved for effect names
string_fx_names_start = 1; // So we don't mistake 0 for a valid index
string_fx_names_end = fx_list_maxcount;
function get_mod_range(effectIndex, modIndex) local(target_effect, target_spec, target_mod) (
effectIndex < 0 ? (
modIndex == 0 ? (
0.03;
) : modIndex == 1 ? (
1;
) : (
3;
);
) : (
target_effect = fx_list_start + fx_list_step*effectIndex;
target_spec = fx_spec_start + fx_spec_step*target_effect[0/*FX:SPEC_INDEX*/];
target_mod = target_spec + fx_spec_headerlength + fx_spec_modlength*modIndex;
target_mod[0/*FX_MOD:RANGE*/];
);
);
function get_mod_type(effectIndex, modIndex) local(target_effect, target_mod) (
effectIndex < 0 ? (
modIndex == 0 ? (
0/*FX_MODTYPE:MULT*/;
) : modIndex == 1 ? (
0/*FX_MODTYPE:MULT*/;
) : (
1/*FX_MODTYPE:ADD*/;
);
) : (
target_effect = fx_list_start + fx_list_step*effectIndex;
target_spec = fx_spec_start + fx_spec_step*target_effect[0/*FX:SPEC_INDEX*/];
target_mod = target_spec + fx_spec_headerlength + fx_spec_modlength*modIndex;
target_mod[1/*FX_MOD:TYPE*/];
);
);
function get_mod_index(effectIndex, modIndex) (
effectIndex < 0 ? (
modIndex == 0 ? (
0/*NOTE:FREQ*/;
) : modIndex == 1 ? (
1/*NOTE:AMP*/;
) : (
2/*NOTE:GRANULAR_RATE_LOG*/;
);
) : (
note_headerlength + note_fx_statelength*effectIndex + modIndex;
);
);
function get_mod_name(effectIndex, modIndex) local(target_effect, target_mod) (
effectIndex < 0 ? (
modIndex == 0 ? (
"Frequency";
) : modIndex == 1 ? (
"Amplitude";
) : (
"Thickness/Width";
);
) : (
target_effect = fx_list_start + fx_list_step*effectIndex;
target_spec = fx_spec_start + fx_spec_step*target_effect[0/*FX:SPEC_INDEX*/];
target_mod = target_spec + fx_spec_headerlength + fx_spec_modlength*modIndex;
target_mod[2/*FX_MOD:NAME*/];
);
);
function get_effect_name(effectIndex) local(target_effect) (
effectIndex < 0 ? (
"Note"
) : (
target_effect = fx_list_start + fx_list_step*effectIndex;
target_effect[1/*FX:NAME*/];
);
);
polyphonic_aftertouch = freemem;
freemem = polyphonic_aftertouch + 128;
controller_values = freemem;
freemem = controller_values + 128;
function reset_controllers() (
i = 0;
while (i < 128) (
(i == 7 || i == 10 || (i >= 91 && i <= 95) || (i >= 70 && i <= 79) || i >= 120) ? (
controller_values[i] = controller_values[i];
) : (i >= 98 && i <= 101) ? (
controller_values[i] = 1;
) : (i != 0 && i != 32) ? (
controller_values[i] = 0;
);
);
controller_values[11] = 1;
);
function get_controller_name(index) (
index == -2 ? (
"Note"
) : index == -1 ? (
"Velocity"
) : index == 1 ? (
"Modulation (1)"
) : index == 2 ? (
"Breath (2)"
) : index == 11 ? (
"Expression (11)"
) : index == 12 ? (
"Effect 1 (12)"
) : index == 13 ? (
"Effect 2 (13)"
) : index == 64 ? (
"Sustain Pedal (64)"
) : index == 70 ? (
"SC-Variation (70)"
) : index == 71 ? (
"SC-Resonance (71)"
) : index == 72 ? (
"SC-Release (72)"
) : index == 73 ? (
"SC-Attack (73)"
) : index == 74 ? (
"SC-Cutoff (74)"
) : (
-1
);
);
reset_controllers();
notes_start = freemem;
note_headerlength = 19/*NOTE: FREQ, AMP, GRANULAR_RATE_LOG, ACTIVE, VEL, NOTE, SECONDSFROMSTART, AUDIO_LEFT, AUDIO_RIGHT, SECONDSFROMEND, DECAYRATE, CHANNEL, FREQ_BASE, AMP_BASE, WAVEINDEX_FROM, SAMPLEPOS_FROM, SAMPLEPOS_TO, GRANULAR_POS, ENV*/;
note_fx_statelength = fx_list_statelength;
notes_step = note_headerlength + note_fx_statelength*fx_list_maxcount;
freemem = notes_end = notes_start + polyphony*notes_step;
// Clear all notes
function clear_all_notes() local(note) (
note = notes_start;
while (
note[3/*NOTE:ACTIVE*/] = 0;
note += notes_step;
note < notes_end;
);
);
clear_all_notes();
wavetables_start = freemem;
wavetables_count = options_wavetables_count;
wavetable_sampleslength = options_wavetables_sampleslength;
wavetable_headerlength = 2/*WAVETABLE: FREQ, WAVELENGTH*/; // Freq
wavetable_step = wavetable_headerlength + wavetable_sampleslength*2;
freemem = wavetables_start + wavetables_count*wavetable_step;
display_wavetable_index = floor(wavetables_count/2);
volume_db = -12;
volume = pow(10, volume_db/20);
note_maxduration = 60*60*24*365;
wavetable_maxfreq = options_wavetables_samplerate*0.5;
wavetable_taper_lowfreq = options_wavetables_samplerate*0.45;
wavetable_taper_highfreq = options_wavetables_samplerate*0.5;
wavetable_refsrate = options_wavetables_samplerate;
// 6+ octaves, centred on 440
wavetable_low = options_wavetables_lowfreq;
wavetable_high = options_wavetables_highfreq;
//////////////// LFO ////////////////
7/*LFO_NOTE_STATE: LOG_FREQ_BASE, AMP_BASE, TARGET, MODTYPE, PHASE*/ > note_fx_statelength ? ui_error("note state too small for LFO");
6/*LFO_STATE: */ > fx_list_statelength ? ui_error("effect state too small for LFO");
effectspec = fx_spec_start + fx_spec_step*0/*FX_SPECLIST_INDEX:LFO*/;
effectspec[0/*FX_HEADER:NAME*/] = "LFO";
effectspec[1/*FX_HEADER:MODCOUNT*/] = 2;
modspec = effectspec + fx_spec_headerlength + fx_spec_modlength*0/*LFO_NOTE_STATE:LOG_FREQ*/;
modspec[2/*FX_MOD:NAME*/] = "Frequency";
modspec[1/*FX_MOD:TYPE*/] = 1/*FX_MODTYPE:ADD*/;
modspec[0/*FX_MOD:RANGE*/] = 2;
modspec = effectspec + fx_spec_headerlength + fx_spec_modlength*1/*LFO_NOTE_STATE:AMP*/;
modspec[2/*FX_MOD:NAME*/] = "Amount";
modspec[1/*FX_MOD:TYPE*/] = 0/*FX_MODTYPE:MULT*/;
modspec[0/*FX_MOD:RANGE*/] = 1;
effectspec[2/*FX_HEADER:FUNC_INIT*/] = 1/*effect_init_lfo*/;
function effect_init_lfo(effect) local(state) (
effect[1/*FX:NAME*/] = "LFO Modulator";
state = effect + fx_list_headerlength;
state[0/*LFO_STATE:MOD_EFFECT*/] = -1; // Initial target: note itself
state[1/*LFO_STATE:MOD_INDEX*/] = 1; // Note amplitude
state[3/*LFO_STATE:FREQ*/] = 5; // Freq
state[4/*LFO_STATE:AMP*/] = 0.5; // Amp
state[5/*LFO_STATE:PHASE_START*/] = 0; // Negative means "random", positive is phase
);
effectspec[3/*FX_HEADER:CONFIG_UI_FUNCTION*/] = 1/*effect_ui_lfo*/;
function effect_ui_lfo(effect) local(state, effect_index, mod_range) (
effect_index = (effect - fx_list_start)/fx_list_step;
state = effect + fx_list_headerlength;
mod_range = get_mod_range(state[0/*LFO_STATE:MOD_EFFECT*/], state[1/*LFO_STATE:MOD_INDEX*/]);
ui_split_topratio(1/4);
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("depth");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(floor(state[4/*LFO_STATE:AMP*/]*100/mod_range + 0.5), "%i%%");
ui_pop();
state[4/*LFO_STATE:AMP*/] = control_hslider(state[4/*LFO_STATE:AMP*/], 0, mod_range*2, 3);
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_padright();
ui_align(1, -1);
ui_text("frequency");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(state[3/*LFO_STATE:FREQ*/], "%.2fHz");
ui_pop();
state[3/*LFO_STATE:FREQ*/] = control_hslider(state[3/*LFO_STATE:FREQ*/], 0, 100, 3);
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_padright();
ui_align(1, -1);
ui_text("phase");
ui_pop();
ui_split_rightratio(0.2);
ui_pop();
ui_split_lefttext("constant");
control_button(state[5/*LFO_STATE:PHASE_START*/] >= 0 ? "constant" : "random") ? (
state[5/*LFO_STATE:PHASE_START*/] >= 0 ? (
state[5/*LFO_STATE:PHASE_START*/] = -1;
) : (
state[5/*LFO_STATE:PHASE_START*/] = 0;
);
);
ui_pop();
ui_padleft();
state[5/*LFO_STATE:PHASE_START*/] >= 0 ? (
state[5/*LFO_STATE:PHASE_START*/] = control_hslider(state[5/*LFO_STATE:PHASE_START*/], 0, 2*$pi, 0);
);
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("target");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_padright();
control_button("edit") ? (
ui_screen_open("automation-target");
ui_screen_set(0, state + 0/*LFO_STATE:MOD_EFFECT*/);
ui_screen_set(1, state + 1/*LFO_STATE:MOD_INDEX*/);
ui_screen_set(2, state + 4/*LFO_STATE:AMP*/);
ui_screen_set(3, effect_index);
);
ui_pop();
ui_split_leftratio(0.6);
ui_padright();
control_readout(get_effect_name(state[0/*LFO_STATE:MOD_EFFECT*/]));
ui_split_next();
control_readout(get_mod_name(state[0/*LFO_STATE:MOD_EFFECT*/], state[1/*LFO_STATE:MOD_INDEX*/]));
ui_pop();
ui_pop();
ui_pop();
);
effectspec[4/*FX_HEADER:CONFIG_SWAP_FUNCTION*/] = 1/*effect_swap_lfo*/;
function effect_swap_lfo(effect, fxIndex1, fxIndex2) local(state) (
state = effect + fx_list_headerlength;
state[0/*LFO_STATE:MOD_EFFECT*/] == fxIndex1 ? (
state[0/*LFO_STATE:MOD_EFFECT*/] = fxIndex2;
) : state[0/*LFO_STATE:MOD_EFFECT*/] == fxIndex2 ? (
state[0/*LFO_STATE:MOD_EFFECT*/] = fxIndex1;
);
);
effectspec[5/*FX_HEADER:CONFIG_DELETE_FUNCTION*/] = 1/*effect_delete_lfo*/;
function effect_delete_lfo(effect, fxIndex) local(state) (
state = effect + fx_list_headerlength;
state[0/*LFO_STATE:MOD_EFFECT*/] == fxIndex ? (
// Our target was just deleted - reset the effect
effect_init_lfo(effect);
// Amplitude to zero
state[4/*LFO_STATE:AMP*/] = 0;
);
);
effectspec[6/*FX_HEADER:SETUP_NOTE_FUNCTION*/] = 1/*effect_note_setup_lfo*/;
function effect_note_setup_lfo(effect, note, notestate) local(state) (
state = effect + fx_list_headerlength;
// Two modulatable parameters
notestate[2/*LFO_NOTE_STATE:LOG_FREQ_BASE*/] = log(state[3/*LFO_STATE:FREQ*/]); // freq
notestate[3/*LFO_NOTE_STATE:AMP_BASE*/] = state[4/*LFO_STATE:AMP*/]; // amp
// Use the remainder for private state
notestate[4/*LFO_NOTE_STATE:TARGET*/] = get_mod_index(state[0/*LFO_STATE:MOD_EFFECT*/], state[1/*LFO_STATE:MOD_INDEX*/]);
notestate[5/*LFO_NOTE_STATE:MODTYPE*/] = get_mod_type(state[0/*LFO_STATE:MOD_EFFECT*/],
state[1/*LFO_STATE:MOD_INDEX*/]);
notestate[6/*LFO_NOTE_STATE:PHASE*/] = (state[5/*LFO_STATE:PHASE_START*/] >= 0) ? (
state[5/*LFO_STATE:PHASE_START*/];
) : (
rand(2*$pi);
);
);
effectspec[7/*FX_HEADER:PRE_EXEC_NOTE_FUNCTION*/] = 1/*effect_note_pre_exec_lfo*/;
function effect_note_pre_exec_lfo(effect, note, notestate) (
notestate[1/*LFO_NOTE_STATE:AMP*/] = notestate[3/*LFO_NOTE_STATE:AMP_BASE*/];
notestate[0/*LFO_NOTE_STATE:LOG_FREQ*/] = notestate[2/*LFO_NOTE_STATE:LOG_FREQ_BASE*/];
);
effectspec[8/*FX_HEADER:EXEC_NOTE_FUNCTION*/] = 1/*effect_note_exec_lfo*/;
function effect_note_exec_lfo(effect, note, notestate) local(angFreq, value, targetIndex) (
targetIndex = notestate[4/*LFO_NOTE_STATE:TARGET*/];
targetIndex >= 0 ? (
angFreq = 2*$pi*exp(notestate[0/*LFO_NOTE_STATE:LOG_FREQ*/])*invsrate;
notestate[6/*LFO_NOTE_STATE:PHASE*/] += angFreq;
value = notestate[1/*LFO_NOTE_STATE:AMP*/]*sin(notestate[6/*LFO_NOTE_STATE:PHASE*/]);
notestate[5/*LFO_NOTE_STATE:MODTYPE*/] == 1/*FX_MODTYPE:ADD*/ ? (
note[targetIndex] += value;
) : (
note[targetIndex] *= max(0, 1 + value);
);
);
);
//////////////// Filter ////////////////
16/*FILTER_NOTE_STATE: LOG_FREQ_BASE, Q_BASE, ATTACK_AMOUNT_BASE, ATTACK_TIME_BASE, X1_L, X2_L, Y1_L, Y2_L, X1_R, X2_R, Y1_R, Y2_R*/ > note_fx_statelength ? ui_error("note state too small for filter");
7/*FILTER_STATE: */ > fx_list_statelength ? ui_error("effect state too small for filter");
effectspec = fx_spec_start + fx_spec_step*1/*FX_SPECLIST_INDEX:FILTER*/;
effectspec[0/*FX_HEADER:NAME*/] = "Filter";
effectspec[1/*FX_HEADER:MODCOUNT*/] = 4;
modspec = effectspec + fx_spec_headerlength + fx_spec_modlength*0/*FILTER_NOTE_STATE:LOG_FREQ*/;
modspec[2/*FX_MOD:NAME*/] = "Frequency";
modspec[1/*FX_MOD:TYPE*/] = 1/*FX_MODTYPE:ADD*/;
modspec[0/*FX_MOD:RANGE*/] = 4;
modspec = effectspec + fx_spec_headerlength + fx_spec_modlength*1/*FILTER_NOTE_STATE:Q*/;
modspec[2/*FX_MOD:NAME*/] = "Q-Factor";
modspec[1/*FX_MOD:TYPE*/] = 0/*FX_MODTYPE:MULT*/;
modspec[0/*FX_MOD:RANGE*/] = 1;
modspec = effectspec + fx_spec_headerlength + fx_spec_modlength*2/*FILTER_NOTE_STATE:ATTACK_AMOUNT*/;
modspec[2/*FX_MOD:NAME*/] = "Attack (start)";
modspec[1/*FX_MOD:TYPE*/] = 1/*FX_MODTYPE:ADD*/;
modspec[0/*FX_MOD:RANGE*/] = 2;
modspec = effectspec + fx_spec_headerlength + fx_spec_modlength*3/*FILTER_NOTE_STATE:ATTACK_TIME*/;
modspec[2/*FX_MOD:NAME*/] = "Attack (time)";
modspec[1/*FX_MOD:TYPE*/] = 0/*FX_MODTYPE:MULT*/;
modspec[0/*FX_MOD:RANGE*/] = 1;
effectspec[2/*FX_HEADER:FUNC_INIT*/] = 2/*effect_init_filter*/;
function effect_init_filter(effect) local(state) (
effect[1/*FX:NAME*/] = "Filter";
state = effect + fx_list_headerlength;
state[0/*FILTER_STATE:FREQ*/] = 1000;
state[1/*FILTER_STATE:Q*/] = 1.5;
state[2/*FILTER_STATE:ATTACK_AMOUNT*/] = 0;
state[3/*FILTER_STATE:ATTACK_TIME*/] = 0.1;
state[4/*FILTER_STATE:ATTACK_AMOUNT_VELOCITY*/] = log(4);
state[5/*FILTER_STATE:FREQ_LOG_VELOCITY*/] = log(5);
state[6/*FILTER_STATE:FREQ_LOG_NOTE*/] = 0.5;
);
effectspec[3/*FX_HEADER:CONFIG_UI_FUNCTION*/] = 2/*effect_ui_filter*/;
function effect_ui_filter(effect) local(state, effect_index, mod_range) (
effect_index = (effect - fx_list_start)/fx_list_step;
state = effect + fx_list_headerlength;
ui_split_topratio(3/5);
control_group("Filter");
ui_split_topratio(1/4);
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("Freq");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(floor(state[0/*FILTER_STATE:FREQ*/] + 0.5), "%iHz");
ui_pop();
state[0/*FILTER_STATE:FREQ*/] = control_hslider(state[0/*FILTER_STATE:FREQ*/], 20, 18000, log(18000/20));
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("Q");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(state[1/*FILTER_STATE:Q*/], "%0.1f");
ui_pop();
state[1/*FILTER_STATE:Q*/] = control_hslider(state[1/*FILTER_STATE:Q*/], 0.1, 10, 3);
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("Velocity");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(exp(state[5/*FILTER_STATE:FREQ_LOG_VELOCITY*/]), "x%0.2f");
ui_pop();
state[5/*FILTER_STATE:FREQ_LOG_VELOCITY*/] = control_hslider(state[5/*FILTER_STATE:FREQ_LOG_VELOCITY*/], 0, log(20), -1);
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("Note");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(floor(state[6/*FILTER_STATE:FREQ_LOG_NOTE*/]*100 + 0.5), "%i%%");
ui_pop();
state[6/*FILTER_STATE:FREQ_LOG_NOTE*/] = control_hslider(state[6/*FILTER_STATE:FREQ_LOG_NOTE*/], -1, 2, 0);
ui_pop();
ui_pop();
ui_split_next();
control_group("Envelope");
ui_split_topratio(1/3);
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("Attack");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(state[3/*FILTER_STATE:ATTACK_TIME*/]*1000, "%ims");
ui_pop();
state[3/*FILTER_STATE:ATTACK_TIME*/] = control_hslider(state[3/*FILTER_STATE:ATTACK_TIME*/], 0.001, 1.5, 3);
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("Start");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(exp(state[2/*FILTER_STATE:ATTACK_AMOUNT*/]), "x%0.2f");
ui_pop();
state[2/*FILTER_STATE:ATTACK_AMOUNT*/] = control_hslider(state[2/*FILTER_STATE:ATTACK_AMOUNT*/], -5, 5, 0);
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("Velocity");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(exp(state[4/*FILTER_STATE:ATTACK_AMOUNT_VELOCITY*/]), "x%0.2f");
ui_pop();
state[4/*FILTER_STATE:ATTACK_AMOUNT_VELOCITY*/] = control_hslider(state[4/*FILTER_STATE:ATTACK_AMOUNT_VELOCITY*/], 0, log(20), -1);
ui_pop();
ui_pop();
ui_pop();
);
effectspec[4/*FX_HEADER:CONFIG_SWAP_FUNCTION*/] = 0;
effectspec[5/*FX_HEADER:CONFIG_DELETE_FUNCTION*/] = 0;
effectspec[6/*FX_HEADER:SETUP_NOTE_FUNCTION*/] = 2/*effect_note_setup_filter*/;
function effect_note_setup_filter(effect, note, notestate) local(state) (
state = effect + fx_list_headerlength;
// Four modulatable parameters
notestate[4/*FILTER_NOTE_STATE:LOG_FREQ_BASE*/] = log(state[0/*FILTER_STATE:FREQ*/]);
notestate[4/*FILTER_NOTE_STATE:LOG_FREQ_BASE*/] += state[5/*FILTER_STATE:FREQ_LOG_VELOCITY*/]*(note[4/*NOTE:VEL*/] - 64)/127;
notestate[4/*FILTER_NOTE_STATE:LOG_FREQ_BASE*/] += state[6/*FILTER_STATE:FREQ_LOG_NOTE*/]*(note[5/*NOTE:NOTE*/] - 64)*log(2)/12;
notestate[5/*FILTER_NOTE_STATE:Q_BASE*/] = state[1/*FILTER_STATE:Q*/];
notestate[6/*FILTER_NOTE_STATE:ATTACK_AMOUNT_BASE*/] = state[2/*FILTER_STATE:ATTACK_AMOUNT*/];
notestate[6/*FILTER_NOTE_STATE:ATTACK_AMOUNT_BASE*/] += state[4/*FILTER_STATE:ATTACK_AMOUNT_VELOCITY*/]*note[4/*NOTE:VEL*/]/127;
notestate[7/*FILTER_NOTE_STATE:ATTACK_TIME_BASE*/] = state[3/*FILTER_STATE:ATTACK_TIME*/];
// Private state
notestate[8/*FILTER_NOTE_STATE:X1_L*/] = 0;
notestate[9/*FILTER_NOTE_STATE:X2_L*/] = 0;
notestate[10/*FILTER_NOTE_STATE:Y1_L*/] = 0;
notestate[11/*FILTER_NOTE_STATE:Y2_L*/] = 0;
notestate[12/*FILTER_NOTE_STATE:X1_R*/] = 0;
notestate[13/*FILTER_NOTE_STATE:X2_R*/] = 0;
notestate[14/*FILTER_NOTE_STATE:Y1_R*/] = 0;
notestate[15/*FILTER_NOTE_STATE:Y2_R*/] = 0;
);
effectspec[7/*FX_HEADER:PRE_EXEC_NOTE_FUNCTION*/] = 2/*effect_note_pre_exec_filter*/;
function effect_note_pre_exec_filter(effect, note, notestate) (
notestate[0/*FILTER_NOTE_STATE:LOG_FREQ*/] = notestate[4/*FILTER_NOTE_STATE:LOG_FREQ_BASE*/];
notestate[1/*FILTER_NOTE_STATE:Q*/] = notestate[5/*FILTER_NOTE_STATE:Q_BASE*/];
notestate[2/*FILTER_NOTE_STATE:ATTACK_AMOUNT*/] = notestate[6/*FILTER_NOTE_STATE:ATTACK_AMOUNT_BASE*/];
notestate[3/*FILTER_NOTE_STATE:ATTACK_TIME*/] = notestate[7/*FILTER_NOTE_STATE:ATTACK_TIME_BASE*/];
);
effectspec[8/*FX_HEADER:EXEC_NOTE_FUNCTION*/] = 2/*effect_note_exec_filter*/;
function effect_note_exec_filter(effect, note, notestate) local(logfreq, freq, Q, w0, cosW0, alpha, a0, a1, a2, b0, b1, b2, x, y) (
logfreq = notestate[0/*FILTER_NOTE_STATE:LOG_FREQ*/];
note[6/*NOTE:SECONDSFROMSTART*/] < notestate[3/*FILTER_NOTE_STATE:ATTACK_TIME*/] ? (
logfreq += notestate[2/*FILTER_NOTE_STATE:ATTACK_AMOUNT*/]*(1 - note[6/*NOTE:SECONDSFROMSTART*/]/notestate[3/*FILTER_NOTE_STATE:ATTACK_TIME*/]);
);
freq = exp(logfreq);
Q = notestate[1/*FILTER_NOTE_STATE:Q*/];
Q < 0.1 ? Q = 0.1;
w0 = 2*$pi*min(0.49, freq/srate);
cosW0 = cos(w0);
alpha = sin(w0)/(2*Q);
a0 = 1 + alpha;
a1 = (-2*cosW0)/a0;
a2 = (1 - alpha)/a0;
b1 = (1 - cosW0)/a0;
b0 = b1/2;
b2 = b0;
x = note[7/*NOTE:AUDIO_LEFT*/];
y = b0*x + b1*notestate[8/*FILTER_NOTE_STATE:X1_L*/] + b2*notestate[9/*FILTER_NOTE_STATE:X2_L*/]
- a1*notestate[10/*FILTER_NOTE_STATE:Y1_L*/] - a2*notestate[11/*FILTER_NOTE_STATE:Y2_L*/];
notestate[9/*FILTER_NOTE_STATE:X2_L*/] = notestate[8/*FILTER_NOTE_STATE:X1_L*/];
notestate[8/*FILTER_NOTE_STATE:X1_L*/] = x;
notestate[11/*FILTER_NOTE_STATE:Y2_L*/] = notestate[10/*FILTER_NOTE_STATE:Y1_L*/];
notestate[10/*FILTER_NOTE_STATE:Y1_L*/] = note[7/*NOTE:AUDIO_LEFT*/] = y;
x = note[8/*NOTE:AUDIO_RIGHT*/];
y = b0*x + b1*notestate[12/*FILTER_NOTE_STATE:X1_R*/] + b2*notestate[13/*FILTER_NOTE_STATE:X2_R*/]
- a1*notestate[14/*FILTER_NOTE_STATE:Y1_R*/] - a2*notestate[15/*FILTER_NOTE_STATE:Y2_R*/];
notestate[13/*FILTER_NOTE_STATE:X2_R*/] = notestate[12/*FILTER_NOTE_STATE:X1_R*/];
notestate[12/*FILTER_NOTE_STATE:X1_R*/] = x;
notestate[15/*FILTER_NOTE_STATE:Y2_R*/] = notestate[14/*FILTER_NOTE_STATE:Y1_R*/];
notestate[14/*FILTER_NOTE_STATE:Y1_R*/] = note[8/*NOTE:AUDIO_RIGHT*/] = y;
);
//////////////// Controller Mod ////////////////
8/*CONMOD_NOTE_STATE: TARGET, MODTYPE, SOURCE, AMOUNT, CURVE_POWER, OFFSET, VALUE, SLEWFACTOR*/ > note_fx_statelength ? ui_error("note state too small for controller mod");
9/*CONMOD_STATE: AMP*/ > fx_list_statelength ? ui_error("effect state too small for controller mod");
effectspec = fx_spec_start + fx_spec_step*2/*FX_SPECLIST_INDEX:CONMOD*/;
effectspec[0/*FX_HEADER:NAME*/] = "Controller/Note/Vel";
effectspec[1/*FX_HEADER:MODCOUNT*/] = 0;
effectspec[2/*FX_HEADER:FUNC_INIT*/] = 3/*effect_init_conmod*/;
function effect_init_conmod(effect) local(state) (
effect[1/*FX:NAME*/] = "Control/Note/Vel Modulator";
state = effect + fx_list_headerlength;
state[0/*CONMOD_STATE:MOD_EFFECT*/] = -1; // Initial target: note itself
state[1/*CONMOD_STATE:MOD_INDEX*/] = 0; // Frequency
state[2/*CONMOD_STATE:SOURCE*/] = -1; // -2 is note, -1 is velocity
state[3/*CONMOD_STATE:AMOUNT*/] = 0.015;
state[4/*CONMOD_STATE:ZERO_POINT*/] = 0.5;
state[5/*CONMOD_STATE:CURVE*/] = 0;
state[6/*CONMOD_STATE:INVERT_SOURCE*/] = 0;
state[7/*CONMOD_STATE:SMOOTHING_MS*/] = 5;
);
effectspec[3/*FX_HEADER:CONFIG_UI_FUNCTION*/] = 3/*effect_ui_conmod*/;
function effect_conmod_curve(value, zero_point, curve) local(curvepower) (
curvepower = exp(curve);
pow(value, curvepower) - pow(zero_point, curvepower);
);
function effect_ui_conmod(effect) local(state, effect_index, mod_range, source, source_name, name, source_prev, source_next, i, value, y) (
effect_index = (effect - fx_list_start)/fx_list_step;
state = effect + fx_list_headerlength;
mod_range = get_mod_range(state[0/*CONMOD_STATE:MOD_EFFECT*/], state[1/*CONMOD_STATE:MOD_INDEX*/]);
ui_split_topratio(1/9);
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("source");
ui_pop();
ui_split_rightratio(0.3);
ui_split_leftratio(0.6);
ui_align(1, -1);
ui_text("Smooth");
ui_pop();
state[7/*CONMOD_STATE:SMOOTHING_MS*/] = control_dial(state[7/*CONMOD_STATE:SMOOTHING_MS*/], 1, 100, 3);
ui_split_next();
ui_split_leftratio(0.6);
ui_padright();
ui_align(1, -1);
ui_text("invert");
ui_pop();
state[6/*CONMOD_STATE:INVERT_SOURCE*/] = control_switch(state[6/*CONMOD_STATE:INVERT_SOURCE*/]);
ui_pop();
ui_push();
ui_padright();
source = state[2/*CONMOD_STATE:SOURCE*/];
source_prev = -2;
source_next = source;
i = -2;
while (i < 128) (
name = get_controller_name(i);
name >= 0 ? (
i == source ? (
source_name = name;
);
i < source ? source_prev = i;
i > source ? (
source_next = i;
i = 128;
);
);
i += 1;
);
ui_align(0, -1);
state[2/*CONMOD_STATE:SOURCE*/] = control_selector(source, source_name, source_next, source_prev);
ui_pop();
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_align(1, -1);
ui_padright();
ui_text("depth");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(floor(state[3/*CONMOD_STATE:AMOUNT*/]*100/mod_range + 0.5), "%i%%");
ui_pop();
state[3/*CONMOD_STATE:AMOUNT*/] = control_hslider(state[3/*CONMOD_STATE:AMOUNT*/], 0, mod_range*2, 3);
ui_pop();
ui_split_next();
ui_push_heighttext(-1);
ui_split_leftratio(0.2);
ui_padright();
ui_align(1, -1);
ui_text("zero point");
ui_pop();
ui_split_rightratio(0.2);
ui_padleft();
ui_align(0, -1);
ui_textnumber(state[4/*CONMOD_STATE:ZERO_POINT*/]*127, "%i");
ui_pop();
state[4/*CONMOD_STATE:ZERO_POINT*/] = control_hslider(state[4/*CONMOD_STATE:ZERO_POINT*/], 0, 1, 0);
ui_pop();
ui_split_next();