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274
.clang-format
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@ -1,274 +0,0 @@
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149
controller.c
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@ -13,97 +13,98 @@
#include <pipewire/filter.h> #include <pipewire/filter.h>
#include <pipewire/pipewire.h> #include <pipewire/pipewire.h>
#include "delay.h"
#include "gate.h"
#include "guitfx.h" #include "guitfx.h"
#include "delay.h"
#include "sust.h" #include "sust.h"
#include "gate.h"
void midi_control( void midi_control(
struct FxData* data, struct FxData * data,
uint64_t frame, uint64_t frame,
uint64_t offset, uint64_t offset,
unsigned sec, unsigned sec,
unsigned midi_size, unsigned midi_size,
uint8_t* midi_data, uint8_t * midi_data,
struct spa_io_position* position) struct spa_io_position* position
{ ) {
printf("[%d] MIDI message (%d bytes) : %x, %x, %x\n", sec, midi_size, printf("[%d] MIDI message (%d bytes) : %x, %x, %x\n", sec, midi_size,
midi_data[0], midi_data[1], midi_data[2]); midi_data[0], midi_data[1], midi_data[2]);
switch (midi_data[0] & 0xff) { switch (midi_data[0] & 0xff) {
case 0xb0: case 0xb0:
switch (midi_data[1]) { switch (midi_data[1]) {
case 0x0b: case 0x0b:
// expr pedal // expr pedal
float val_f = ((float)midi_data[2]) / 128.0; float val_f = ((float)midi_data[2]) / 128.0;
float thres = 0.5; float thres = 0.5;
if (val_f > thres) { if (val_f > thres) {
float expr_mix = (val_f - thres) / (1.0 - thres); float expr_mix = (val_f - thres) / (1.0 - thres);
printf("Expr Pedal %f\n", expr_mix); printf("Expr Pedal %f\n", expr_mix);
data->delay.mix = expr_mix; data->delay.mix = expr_mix;
} else { } else {
data->delay.mix = 0.0; data->delay.mix = 0.0;
} }
break; break;
case 0x42: case 0x42:
// noise gate calibration // noise gate calibration
if (data->prog == 2) { if (data->prog == 2) {
if (midi_data[2] >= 64) { if (midi_data[2] >= 64) {
data->gate.threshold = data->gate.cur_block_sum * 0.8; data->gate.threshold = data->gate.cur_block_sum * 0.8;
printf("calibrate noise gate: threshold = %f\n", printf("calibrate noise gate: threshold = %f\n",
data->gate.threshold); data->gate.threshold);
} }
} }
// sust pedal // sust pedal
if (data->prog == 1) { if (data->prog == 1) {
if (midi_data[2] >= 64) { if (midi_data[2] >= 64) {
sust_swap(&data->sust); sust_swap(&data->sust);
data->sust.playing = true; data->sust.playing = true;
data->sust.start_idx = data->sust.idx; data->sust.start_idx = data->sust.idx;
data->sust.idx = 0; data->sust.idx = 0;
} else { } else {
data->sust.playing = false; data->sust.playing = false;
} }
} }
// tap tempo // tap tempo
if (data->prog == 0) { if (data->prog == 0) {
uint64_t cur_tap = frame + offset; uint64_t cur_tap = frame + offset;
uint64_t duration = cur_tap - data->last_tap; uint64_t duration = cur_tap - data->last_tap;
data->last_tap = cur_tap; data->last_tap = cur_tap;
if (duration < (4 * position->clock.rate.denom)) { if (duration < (4 * position->clock.rate.denom)) {
delay_set_time(&data->delay, duration); delay_set_time(&data->delay, duration);
} }
sust_resize(&data->sust, duration); sust_resize(&data->sust, duration);
} }
break; break;
} }
break; break;
case 0xc0: case 0xc0:
// program change // program change
if (midi_data[2] >= 64) { if (midi_data[2] >= 64) {
sust_swap(&data->sust); sust_swap(&data->sust);
data->sust.playing = true; data->sust.playing = true;
data->sust.start_idx = data->sust.idx; data->sust.start_idx = data->sust.idx;
data->sust.idx = 0; data->sust.idx = 0;
} else { } else {
data->sust.playing = false; data->sust.playing = false;
} }
printf("program change: %u\n", midi_data[1]); printf("program change: %u\n", midi_data[1]);
data->prog = midi_data[1]; data->prog = midi_data[1];
break; break;
} }
} }

22
guitfx.c
View file

@ -15,8 +15,8 @@
#include "delay.h" #include "delay.h"
#include "gate.h" #include "gate.h"
#include "guitfx.h"
#include "sust.h" #include "sust.h"
#include "guitfx.h"
float envelope(float x); float envelope(float x);
@ -27,14 +27,15 @@ struct port {
}; };
void midi_control( void midi_control(
struct FxData* data, struct FxData * data,
uint64_t frame,
uint64_t offset,
unsigned sec,
unsigned midi_size,
uint8_t * midi_data,
struct spa_io_position* position);
uint64_t frame,
uint64_t offset,
unsigned sec,
unsigned midi_size,
uint8_t* midi_data,
struct spa_io_position* position);
struct data { struct data {
struct pw_main_loop* loop; struct pw_main_loop* loop;
@ -78,9 +79,10 @@ static void on_process(void* userdata, struct spa_io_position* position)
char* midi_data = SPA_POD_BODY(&c->value); char* midi_data = SPA_POD_BODY(&c->value);
unsigned midi_size = SPA_POD_BODY_SIZE(&c->value); unsigned midi_size = SPA_POD_BODY_SIZE(&c->value);
midi_control(&data->fx_data, frame, c->offset, sec, midi_size, midi_data, position); midi_control( &data->fx_data, frame, c->offset, sec, midi_size, midi_data, position );
} else { } else {
printf("on_process(): non midi-control\n");
printf("on_process(): non midi-control\n");
} }
} }
} else { } else {

2
guitfx.h
View file

@ -1,7 +1,7 @@
#include "delay.h" #include "delay.h"
#include "gate.h"
#include "sust.h" #include "sust.h"
#include "gate.h"
struct FxData { struct FxData {
uint64_t last_tap; uint64_t last_tap;