heck
/
heck_orca-c
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

Add note off timings to app deadline timing

master
cancel 6 years ago
parent
73ceecdec4
commit
749a8cdea6
3 changed files with 52 additions and 10 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 23
      osc_out.c
  2. 8
      osc_out.h
  3. 31
      tui_main.c

23
osc_out.c
View File

@ -147,16 +147,21 @@ void susnote_list_add_notes(Susnote_list* sl, Susnote const* restrict notes,
*end_removed = rem;
}
void susnote_list_advance_time(Susnote_list* sl, float delta_time,
void susnote_list_advance_time(Susnote_list* sl, double delta_time,
Usz* restrict start_removed,
Usz* restrict end_removed) {
Usz* restrict end_removed,
double* soonest_deadline) {
Susnote* restrict buffer = sl->buffer;
Usz count = sl->count;
*end_removed = count;
float delta_float = (float)delta_time;
float soonest = 1.0f;
for (Usz i = 0; i < count;) {
Susnote sn = buffer[i];
sn.remaining -= delta_time;
sn.remaining -= delta_float;
if (sn.remaining > 0) {
if (sn.remaining < soonest)
soonest = sn.remaining;
buffer[i].remaining = sn.remaining;
++i;
} else {
@ -166,5 +171,17 @@ void susnote_list_advance_time(Susnote_list* sl, float delta_time,
}
}
*start_removed = count;
*soonest_deadline = (double)soonest;
sl->count = count;
}
double susnote_list_soonest_deadline(Susnote_list const* sl) {
float soonest = 1.0f;
Susnote const* buffer = sl->buffer;
for (Usz i = 0, n = sl->count; i < n; ++i) {
float rem = buffer[i].remaining;
if (rem < soonest)
soonest = rem;
}
return (double)soonest;
}

8
osc_out.h
View File

@ -32,6 +32,10 @@ void susnote_list_clear(Susnote_list* sl);
void susnote_list_add_notes(Susnote_list* sl, Susnote const* restrict notes,
Usz count, Usz* restrict start_removed,
Usz* restrict end_removed);
void susnote_list_advance_time(Susnote_list* sl, float delta_time,
void susnote_list_advance_time(Susnote_list* sl, double delta_time,
Usz* restrict start_removed,
Usz* restrict end_removed);
Usz* restrict end_removed,
// 1.0 if no notes remain or none shorter than 1.0
double* soonest_deadline);
// 1.0 if no notes remain or none shorter than 1.0
double susnote_list_soonest_deadline(Susnote_list const* sl);

31
tui_main.c
View File

@ -511,6 +511,7 @@ typedef struct {
Tui_input_mode input_mode;
Usz bpm;
double accum_secs;
double time_to_next_note_off;
char const* filename;
Oosc_dev* oosc_dev;
Midi_mode const* midi_mode;
@ -537,6 +538,7 @@ void app_init(App_state* a) {
a->input_mode = Tui_input_mode_normal;
a->bpm = 120;
a->accum_secs = 0.0;
a->time_to_next_note_off = 1.0;
a->filename = NULL;
a->oosc_dev = NULL;
a->midi_mode = NULL;
@ -585,6 +587,12 @@ void send_midi_note_offs(Oosc_dev* oosc_dev, Midi_mode const* midi_mode,
Susnote const* start, Susnote const* end) {
Midi_mode_type midi_mode_type = midi_mode->any.type;
for (; start != end; ++start) {
#if 0
float under = start->remaining;
if (under < 0.0) {
fprintf(stderr, "cutoff slop: %f\n", under);
}
#endif
U16 chan_note = start->chan_note;
Usz chan = chan_note >> 8u;
Usz note = chan_note & 0xFFu;
@ -606,10 +614,11 @@ void send_midi_note_offs(Oosc_dev* oosc_dev, Midi_mode const* midi_mode,
void apply_time_to_sustained_notes(Oosc_dev* oosc_dev,
Midi_mode const* midi_mode,
double time_elapsed,
Susnote_list* susnote_list) {
Susnote_list* susnote_list,
double* next_note_off_deadline) {
Usz start_removed, end_removed;
susnote_list_advance_time(susnote_list, (float)time_elapsed, &start_removed,
&end_removed);
susnote_list_advance_time(susnote_list, time_elapsed, &start_removed,
&end_removed, next_note_off_deadline);
if (ORCA_UNLIKELY(start_removed != end_removed)) {
Susnote const* restrict susnotes_off = susnote_list->buffer;
send_midi_note_offs(oosc_dev, midi_mode, susnotes_off + start_removed,
@ -622,6 +631,7 @@ void app_stop_all_sustained_notes(App_state* a) {
send_midi_note_offs(a->oosc_dev, a->midi_mode, sl->buffer,
sl->buffer + sl->count);
susnote_list_clear(sl);
a->time_to_next_note_off = 1.0;
}
void send_output_events(Oosc_dev* oosc_dev, Midi_mode const* midi_mode, Usz bpm,
@ -647,7 +657,7 @@ void send_output_events(Oosc_dev* oosc_dev, Midi_mode const* midi_mode, Usz bpm,
switch ((Oevent_types)e->any.oevent_type) {
case Oevent_type_midi: {
Oevent_midi const* em = (Oevent_midi const*)&e->midi;
Usz note_number = (Usz)(12u * em->octave + em->note);
Usz note_number = (Usz)(12u * em->octave + em->note) + 48;
Usz channel = em->channel;
Usz bar_div = em->bar_divisor;
midi_note_ons[midi_note_count] =
@ -658,6 +668,10 @@ void send_output_events(Oosc_dev* oosc_dev, Midi_mode const* midi_mode, Usz bpm,
.remaining =
bar_div == 0 ? 0.0f : (float)(bar_secs / (double)bar_div),
.chan_note = (U16)((channel << 8u) | note_number)};
#if 0
fprintf(stderr, "bar div: %d, time: %f\n", (int)bar_div,
new_susnotes[midi_note_count].remaining);
#endif
++midi_note_count;
} break;
}
@ -695,8 +709,11 @@ double app_secs_to_deadline(App_state const* a) {
if (a->is_playing) {
double secs_span = 60.0 / (double)a->bpm / 4.0;
double rem = secs_span - a->accum_secs;
double next_note_off = a->time_to_next_note_off;
if (rem < 0.0)
rem = 0.0;
else if (next_note_off < rem)
rem = next_note_off;
return rem;
} else {
return 1.0;
@ -708,7 +725,8 @@ void app_apply_delta_secs(App_state* a, double secs) {
a->accum_secs += secs;
Oosc_dev* oosc_dev = a->oosc_dev;
Midi_mode const* midi_mode = a->midi_mode;
apply_time_to_sustained_notes(oosc_dev, midi_mode, secs, &a->susnote_list);
apply_time_to_sustained_notes(oosc_dev, midi_mode, secs, &a->susnote_list,
&a->time_to_next_note_off);
}
}
@ -734,6 +752,9 @@ void app_do_stuff(App_state* a) {
a->oevent_list.buffer, count);
}
}
// note for future: sustained note deadlines may have changed due to note
// on. will need to update stored deadline in memory if
// app_apply_delta_secs isn't called again immediately after app_do_stuff.
}
}

Write Preview
Loading…
Cancel
Save