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m68_CRUSH.ino
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m68_CRUSH.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/>.
// --------------------------------------------------------------------------
// Bit crusher
// Pot 1 : dry / wet
// Pot 2 : wet/dry modulation
// Pot 3 : Downsample
// Pot 4 : DS MOD
// Pot 5 : Bitcrush amplitude
// Pot 6 : Mod
// CV 1 : Bypass
// CV 2 : Mod Wet / Dry
// CV 3 : Mod Downsample
// CV 4 : Mod Bitcrush
// IN 1 : in 1
// IN 2 : in 2
// Selecteur3 : mode : dual / oposit / mono + pan
// OUT 1 : OUT L
// OUT 2 : OUT R
int32_t bitcrush, bitcrush2;
uint32_t save_out1, save_out2;
inline void BIT_Crush_init_() {
sin1_phase = 0;
sin2_phase = 0;
init_chaos();
}
inline void BIT_Crush_loop_() {
int32_t freq, freq_save, tmpS;
int32_t bt, bt_save;
int32_t CV2_value, CV3_value, CV4_value;
uint32_t toggle;
int32_t dry1, dry2, dry1_;
filter16_nozori_68
test_connect_loop_68();
toggle = get_toggle();
toggle_global = toggle;
chaos(11); // for default mod values
if (CV2_connect < 60) CV2_value = CV_filter16_out[index_filter_cv2] - CV2_0V; else CV2_value = chaos_dx>>16;
if (CV3_connect < 60) CV3_value = CV_filter16_out[index_filter_cv3] - CV3_0V; else CV3_value = chaos_dy>>16;
if (CV4_connect < 60) CV4_value = CV_filter16_out[index_filter_cv4] - CV4_0V; else CV4_value = chaos_dz>>16;
CV2_value = min(0x7FFF,max(-0x7FFF,CV2_value));
CV3_value = min(0x7FFF,max(-0x7FFF,CV3_value));
CV4_value = min(0x7FFF,max(-0x7FFF,CV4_value));
// dry / wet
dry1_ = (0xFFFF - CV_filter16_out[index_filter_pot1]);
dry1_ = max(0x00FF, dry1_);
dry1_ -= 0x00FF;
tmpS = -CV2_value;
tmpS *= CV_filter16_out[index_filter_pot2];
tmpS >>= 15;
dry1 = dry1_ + tmpS;
dry1_goal = min(max(0, dry1), 0xFFFF)<<8;
if (toggle == 1) {
dry2 = dry1_ - tmpS;
dry2_goal = min(max(0, dry2), 0xFFFF)<<8;
} else dry2_goal = dry1_goal;
// frequency control
freq = (CV_filter16_out[index_filter_pot3]);
tmpS = CV3_value;
tmpS *= CV_filter16_out[index_filter_pot4];
tmpS >>= 16;
freq_save = freq;
freq += tmpS;
freq = 0xFFFF-freq;
freq <<= 11;
freq += 0x08000000;
macro_fq2increment
increment_1 = increment1*3;
if (toggle == 1) {
freq = freq_save - tmpS;
freq = 0xFFFF-freq;
freq <<= 11;
freq += 0x08000000;
macro_fq2increment_novar
increment_2 = increment1*3;
}
else {
increment_2 = increment_1;
}
bt = CV4_value >> 1;
bt *= CV_filter16_out[index_filter_pot6];
bt >>= 16;
bt_save = bt;
bt += CV_filter16_out[index_filter_pot5]>>1;
bt = min(max(0,bt),0x7FFF);
//bt *= bt;
//bt = max(1,bt);
bitcrush = bt<<8;
if (toggle == 1) {
bt = -bt_save;
bt += CV_filter16_out[index_filter_pot5]>>1;
bt = min(max(0,bt),0x7FFF);
//bt *= bt;
//bt = max(1,bt);
}
bitcrush2 = bt<<8;
led2((CV3_value+0x7FFF)>>7);
led4((CV4_value+0x7FFF)>>7);
}
inline void BIT_Crush_audio_() {
int32_t tmpS;
uint32_t audio_in;
uint32_t out;
int32_t dry1_local, dry2_local;
int32_t bt1_local, bt2_local;
dry1_local = filter(dry1_goal, dry1_save, 7);
dry1_save = dry1_local;
dry2_local = filter(dry2_goal, dry2_save, 7);
dry2_save = dry2_local;
bt1_local = filter(bitcrush, bt1_save, 7);
bt1_save = bt1_local;
bt2_local = filter(bitcrush2, bt2_save, 7);
bt2_save = bt2_local;
if (IN1_connect < 60) audio_in = audio_inL; else audio_in = 0x80000000;
sin1_phase += increment_1;
if (!((CV1_connect < 60) && (CV_filter16_out[index_filter_CV1] > 0xA000))) { // bypass
if (sin1_phase & 0xC0000000) {
sin1_phase &= 0x3FFFFFFF;
tmpS = audio_in^0x80000000;
tmpS &= ~(bt1_local<<8);
tmpS += bt1_local<<7; // pseudo hip
//tmpS /= bitcrush;
//tmpS *= bitcrush;
save_out1 = tmpS ^0x80000000;
}
audio_outL = ((dry1_local>>8) * (audio_in>>16)) + ((0xFFFF-(dry1_local>>8)) * (save_out1>>16));
}
else {
audio_outL = audio_in;
}
if (toggle_global != 2) {
if (IN2_connect < 60) audio_in = audio_inR; // use audio L if right is not connected
sin2_phase += increment_2;
if (!((CV1_connect < 60) && (CV_filter16_out[index_filter_CV1] > 0xA800))) { // bypass
if (sin2_phase & 0xC0000000) {
sin2_phase &= 0x3FFFFFFF;
tmpS = audio_in^0x80000000;
tmpS &= ~(bt2_local<<8);
tmpS += bt2_local<<7; // pseudo hip
//tmpS /= bitcrush2;
//tmpS *= bitcrush2;
save_out2 = tmpS ^0x80000000;
}
audio_outR = ((dry2_local>>8) * (audio_in>>16)) + ((0xFFFF-(dry2_local>>8)) * (save_out2>>16));
}
else {
audio_outR = audio_in;
}
}
else { // pan mode
out = audio_outL;
macro_out_pan
}
}