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m84_Stereo_WS.ino
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m84_Stereo_WS.ino
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// --------------------------------------------------------------------------
// This file is part of the NOZORI firmware.
//
// NOZORI firmware is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// NOZORI firmware is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with NOZORI firmware. If not, see <http://www.gnu.org/licenses/>.
// --------------------------------------------------------------------------
// dual waveshaper based on 2 iteration of peter de jong equation
// To be used as LFO or audio source
// Pot 1 : cos 1
// Pot 2 : cos 2
// Pot 3 : cos 3
// Pot 4 : cos 4
// Pot 5 : lfo 1
// Pot 6 : lfo 2
// Pot 7 : lfo 3
// Pot 8 : lfo 4
// IN 1 : audio 1
// IN 2 : ausio 2
// Selecteur3 : WS type
// OUT 1 : OUT X
// OUT 2 : OUT Y
uint32_t curve2_exp, curve2_log;
inline void Stereo_WS_init_() {
send_dac(0x08,0b000000001); // sampling control (usb , 250fs, 48K, clock div 2, clk out, active)
}
inline void Stereo_WS_loop_() {
uint32_t toggle, tmp, tmp1, tmp2, tmp3, tmp4;
filter16_nozori_84
test_connect_loop_84();
toggle = get_toggle();
toggle_global = toggle;
tmp1 = (fast_sin(sin1_phase) >> 16);
tmp2 = (fast_sin(sin2_phase) >> 16);
led2((tmp1 >> 7));
led4((tmp2 >> 7));
// Wave Form control
curve_exp = 0x7FFF - min(CV_filter16_out[index_filter_pot7], 0x7FFF);
curve_log = max(CV_filter16_out[index_filter_pot7], 0x7FFF) - 0x7FFF;
curve2_exp = 0x7FFF - min(CV_filter16_out[index_filter_pot8], 0x7FFF);
curve2_log = max(CV_filter16_out[index_filter_pot8], 0x7FFF) - 0x7FFF;
}
inline void Stereo_WS_audio_() {
int32_t A, B, C, D;
int32_t potA, potB, potC, potD;
int32_t sin1, sin2;
uint32_t toggle, tmp, LFO;
int32_t tmpS;
int32_t sin3, outXS, outYS;
uint32_t curve_exp_local, curve_log_local, curve_exp2_local, curve_log2_local;
toggle = toggle_global;
curve_exp_local = curve_exp;
curve_log_local = curve_log;
curve_exp2_local = curve2_exp;
curve_log2_local = curve2_log;
sin1_phase += (CV_filter16_out[index_filter_pot5] * CV_filter16_out[index_filter_pot5])>>12;
sin2_phase += (CV_filter16_out[index_filter_pot6] * CV_filter16_out[index_filter_pot6])>>12;
//sin3_phase += (CV_filter16_out[index_filter_pot7] * CV_filter16_out[index_filter_pot7])>>10;
//sin4_phase += (CV_filter16_out[index_filter_pot8] * CV_filter16_out[index_filter_pot8])>>10;
potA = filter(CV_filter16_out[index_filter_pot3]<<14, potA_save, 9);
potA_save = potA;
potB = filter(CV_filter16_out[index_filter_pot1]<<14, potB_save, 9);
potB_save = potB;
potC = filter(CV_filter16_out[index_filter_pot2]<<14, potC_save, 9);
potC_save = potC;
potD = filter(CV_filter16_out[index_filter_pot4]<<14, potD_save, 9);
potD_save = potD;
potA >>= 14;
potB >>= 14;
potC >>= 14;
potD >>= 14;
increment_0 +=19685267>>2; // 110Hz
tmpS = fast_sin(increment_0)^0x80000000;
tmpS -= tmpS >> 2;
sin3 = tmpS;
if (IN2_connect < 60) sin2 = audio_inR - IN2_0V; else sin2 = sin3;
if (IN1_connect < 60) sin1 = audio_inL - IN1_0V; else sin1 = sin3;
A = sin2>>14;
A *= potA;
B = sin1>>14;
B *= potB;
C = sin1>>14;
C *= potC;
D = sin2>>14;
D *= potD;
A += sin1_phase;
B += sin2_phase;
C -= sin1_phase;
D -= sin2_phase;
//audio_outL = sin1^0x80000000;
sin1 = (fast_sin(A)>>1) - (fast_sin(B+0xC0000000)>>1);
sin2 = (fast_sin(C)>>1) - (fast_sin(D+0xC0000000)>>1);
A = sin2>>14;
A *= potA;
B = sin1>>14;
B *= potB;
C = sin1>>14;
C *= potC;
D = sin2>>14;
D *= potD;
switch (toggle) {
case 0:
sin1 = (fast_sin(A<<1)>>1) - (fast_sin((B<<1)+0xC0000000)>>1);
sin2 = (fast_sin(C<<1)>>1) - (fast_sin((D<<1)+0xC0000000)>>1);
break;
case 1:
sin1 = (fast_sin(A)>>1) - (fast_sin(B+0xC0000000)>>1);
sin2 = (fast_sin(C)>>1) - (fast_sin(D+0xC0000000)>>1);
break;
}
outXS = sin1;
outYS = sin2;
if (curve_exp_local > 0) {
tmpS = outXS >> 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
outXS = MIX16S(outXS>>16, tmpS>>16, curve_exp_local)<<16;
tmpS = outXS >> 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
outXS = MIX16S(outXS>>16, tmpS>>16, curve_exp_local)<<16;
tmpS = outXS >> 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
outXS = MIX16S(outXS>>16, tmpS>>16, curve_exp_local)<<16;
}
else { // curve log
tmpS = outXS ^0x80000000;
tmpS >>= 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
tmpS ^= 0x80000000;
outXS = MIX16S(outXS>>16, tmpS>>16, curve_log_local)<<16;
tmpS = outXS ^0x80000000;
tmpS >>= 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
tmpS ^= 0x80000000;
outXS = MIX16S(outXS>>16, tmpS>>16, curve_log_local)<<16;
tmpS = outXS ^0x80000000;
tmpS >>= 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
tmpS ^= 0x80000000;
outXS = MIX16S(outXS>>16, tmpS>>16, curve_log_local)<<16;
}
if (curve_exp2_local > 0) {
tmpS = outYS >> 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
outYS = MIX16S(outYS>>16, tmpS>>16, curve_exp2_local)<<16;
tmpS = outYS >> 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
outYS = MIX16S(outYS>>16, tmpS>>16, curve_exp2_local)<<16;
tmpS = outYS >> 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
outYS = MIX16S(outYS>>16, tmpS>>16, curve_exp2_local)<<16;
}
else { // curve log
tmpS = outYS ^0x80000000;
tmpS >>= 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
tmpS ^= 0x80000000;
outYS = MIX16S(outYS>>16, tmpS>>16, curve_log2_local)<<16;
tmpS = outYS ^0x80000000;
tmpS >>= 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
tmpS ^= 0x80000000;
outYS = MIX16S(outYS>>16, tmpS>>16, curve_log2_local)<<16;
tmpS = outYS ^0x80000000;
tmpS >>= 16;
tmpS *= abs(tmpS);
tmpS >>= 15;
tmpS *= abs(tmpS);
tmpS <<= 1;
tmpS ^= 0x80000000;
outYS = MIX16S(outYS>>16, tmpS>>16, curve_log2_local)<<16;
}
outXS -= outXS>>2;
outYS -= outYS>>2;
audio_outL=outXS^0x80000000;
audio_outR=outYS^0x80000000;
}