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Copy pathmatchapad_seq.c
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matchapad_seq.c
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#include "matchapad_types.h"
#include "matchapad_seq.h"
extern matchapad_state_t matchapad_state;
extern matchapad_internal_state_t matchapad_internal_state;
extern MidiDevice midi_device;
// root note for SEQ8 is C3
#define SEQ8_ROOT_NOTE 48
#define PROCESS_NOTE(d, note) (((d).i##note##_on) ? midi_send_noteon(&midi_device, 0, (SEQ8_ROOT_NOTE + (note)), 127) : NULL)
#define PROCESS_NOTEOFF(d, note) (((d).i##note##_on) ? midi_send_noteon(&midi_device, 0, (SEQ8_ROOT_NOTE + (note)), 0) : NULL)
// let's assume our maximum is 6000 intervals / minute for starters
#define MIDI_MIN_STEP 10
/* zero the seq8 program given */
void matchapad_seq8_zero_program(matchapad_seq8_program * program) {
int i = 0;
matchapad_seq8_step* progptr = (matchapad_seq8_step *)(program);
for (; i < 8; i++) {
progptr[i] = (matchapad_seq8_step){.mask = 0x000};
}
}
void matchapad_seq8_handle_tick(uint8_t position) {
switch (position) {
case 0:
matchapad_seq8_issue_notes(matchapad_seq8_next_step());
break;
default:
if (position == matchapad_state.midi_ppqn) {
matchapad_seq8_issue_note_off();
}
break;
}
}
void matchapad_seq8_dummy_h(uint8_t) {
dprintln("dummy handler");
}
const matchapad_driver_t matchapad_seq8_driver = {
.tick_handler = &matchapad_seq8_handle_tick,
.noteplay_handler = &matchapad_seq8_dummy_h,
.noterelease_handler = &matchapad_seq8_dummy_h,
};
/* initialize seq8 */
void matchapad_seq8_init(void) {
uprintln("matchapad_seq8_init");
if (matchapad_internal_state.seq8_active_program == NULL) {
matchapad_internal_state.seq8_active_program = malloc(sizeof(matchapad_seq8_program));
matchapad_seq8_zero_program(matchapad_internal_state.seq8_active_program);
}
matchapad_internal_state.driver = &matchapad_seq8_driver;
uprintln("matchapad_seq8_init: done");
}
/* set a step into the given seq8 program */
void matchapad_seq8_set_step(matchapad_step step, matchapad_seq8_program * program, matchapad_seq8_step stepmap) {
((matchapad_seq8_step *)(program))[step] = stepmap;
}
/* load a test program into the seq8 active sequence */
void matchapad_seq8_load_test_program(void) {
uprintln("matchapad_seq8_load_test_program");
matchapad_seq8_program * prog = matchapad_internal_state.seq8_active_program;
matchapad_seq8_zero_program(prog);
uprintln("matchapad_seq8_load_test_program: zero");
matchapad_seq8_set_step(0, prog, (matchapad_seq8_step){.mask=0b100000000000});
matchapad_seq8_set_step(1, prog, (matchapad_seq8_step){.mask=0b100000000000});
matchapad_seq8_set_step(2, prog, (matchapad_seq8_step){.mask=0b100000000000});
matchapad_seq8_set_step(3, prog, (matchapad_seq8_step){.mask=0b100000000000});
matchapad_seq8_set_step(4, prog, (matchapad_seq8_step){.mask=0b100000000000});
matchapad_seq8_set_step(5, prog, (matchapad_seq8_step){.mask=0b101111111111});
matchapad_seq8_set_step(6, prog, (matchapad_seq8_step){.mask=0b011111111111});
matchapad_seq8_set_step(7, prog, (matchapad_seq8_step){.mask=0b111111111111});
//matchapad_seq8_set_step(1, prog, (matchapad_seq8_step){{1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0}});
//matchapad_seq8_set_step(2, prog, (matchapad_seq8_step){{1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0});
//matchapad_seq8_set_step(3, prog, (matchapad_seq8_step){{0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0});
//matchapad_seq8_set_step(4, prog, (matchapad_seq8_step){{1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0});
//matchapad_seq8_set_step(5, prog, (matchapad_seq8_step){{0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0});
//matchapad_seq8_set_step(6, prog, (matchapad_seq8_step){{0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0});
//matchapad_seq8_set_step(7, prog, (matchapad_seq8_step){{0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1});
uprintln("matchapad_seq8_load_test_program: loaded");
}
/* debug seq8 contents */
void matchapad_seq8_debug(void) {
if (matchapad_state.active_mode != MODE_SEQ8) {
return;
}
matchapad_seq8_program * prog = matchapad_internal_state.seq8_active_program;
matchapad_seq8_step* progptr = (matchapad_seq8_step *)(prog);
int i = 0;
for (; i < 8; i++) {
matchapad_seq8_show_step(*progptr);
progptr++;
}
}
/* utility to show a note mask */
void matchapad_seq8_show_step(matchapad_seq8_step step) {
uprintf("%b %b %b %b %b %b %b %b %b %b %b %b\n",
step.i1_on,
step.i2_on,
step.i3_on,
step.i4_on,
step.i5_on,
step.i6_on,
step.i7_on,
step.i8_on,
step.i9_on,
step.i10_on,
step.i11_on,
step.i12_on);
}
/* get a step note mask for the given step number of the given seq8 program */
matchapad_seq8_step matchapad_seq8_get_step(matchapad_step step, matchapad_seq8_program * prog) {
if (step > 7) {
return (matchapad_seq8_step){.mask = 0xfff};
}
matchapad_seq8_step* progptr = (matchapad_seq8_step *)(prog);
return progptr[step];
}
matchapad_seq8_step matchapad_seq8_get_step_by_number(matchapad_step step) {
return matchapad_seq8_get_step(step, matchapad_internal_state.seq8_active_program);
}
void matchapad_seq8_set_step_by_number(matchapad_step step, matchapad_seq8_step notes) {
matchapad_seq8_set_step(step, matchapad_internal_state.seq8_active_program, notes);
}
/* advance one step forward in the seq8 active program and return the set notes */
matchapad_seq8_step matchapad_seq8_next_step(void) {
if (matchapad_internal_state.current_step > 7) {
matchapad_internal_state.current_step = 0;
}
return matchapad_seq8_get_step(matchapad_internal_state.current_step++, matchapad_internal_state.seq8_active_program);
}
void matchapad_seq8_issue_notes(matchapad_seq8_step step) {
PROCESS_NOTE(step, 1);
PROCESS_NOTE(step, 2);
PROCESS_NOTE(step, 3);
PROCESS_NOTE(step, 4);
PROCESS_NOTE(step, 5);
PROCESS_NOTE(step, 6);
PROCESS_NOTE(step, 7);
PROCESS_NOTE(step, 8);
PROCESS_NOTE(step, 9);
PROCESS_NOTE(step, 10);
PROCESS_NOTE(step, 11);
PROCESS_NOTE(step, 12);
matchapad_internal_state.seq8_last_step = step;
// this is very QMK
// defer_exec(MIDI_MIN_STEP, matchapad_seq8_issue_note_off_cb, NULL);
}
void matchapad_seq8_play_next_step(void) {
matchapad_seq8_issue_notes(matchapad_seq8_next_step());
}
// this is quite specific to QMK
uint32_t matchapad_seq8_issue_note_off_cb(uint32_t trigger_time, void *cb_arg) {
matchapad_seq8_issue_note_off();
return 0;
}
void matchapad_seq8_issue_note_off(void) {
matchapad_seq8_step * s = &matchapad_internal_state.seq8_last_step;
PROCESS_NOTEOFF(*s, 1);
PROCESS_NOTEOFF(*s, 2);
PROCESS_NOTEOFF(*s, 3);
PROCESS_NOTEOFF(*s, 4);
PROCESS_NOTEOFF(*s, 5);
PROCESS_NOTEOFF(*s, 6);
PROCESS_NOTEOFF(*s, 7);
PROCESS_NOTEOFF(*s, 8);
PROCESS_NOTEOFF(*s, 9);
PROCESS_NOTEOFF(*s, 10);
PROCESS_NOTEOFF(*s, 11);
PROCESS_NOTEOFF(*s, 12);
}