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#include "ged.h"
#include "gbuffer.h"
#include "sim.h"
#include "sokol_time.h"
typedef enum
{
Glyph_class_unknown,
Glyph_class_grid,
Glyph_class_comment,
Glyph_class_uppercase,
Glyph_class_lowercase,
Glyph_class_movement,
Glyph_class_numeric,
Glyph_class_bang,
} Glyph_class;
static Glyph_class glyph_class_of(Glyph glyph)
{
if (glyph == '.')
return Glyph_class_grid;
if (glyph >= '0' && glyph <= '9')
return Glyph_class_numeric;
switch (glyph) {
case 'N':
case 'n':
case 'E':
case 'e':
case 'S':
case 's':
case 'W':
case 'w':
return Glyph_class_movement;
case '!':
case ':':
case ';':
case '=':
case '%':
case '?':
return Glyph_class_lowercase;
case '*':
return Glyph_class_bang;
case '#':
return Glyph_class_comment;
}
if (glyph >= 'A' && glyph <= 'Z')
return Glyph_class_uppercase;
if (glyph >= 'a' && glyph <= 'z')
return Glyph_class_lowercase;
return Glyph_class_unknown;
}
static attr_t term_attrs_of_cell(Glyph g, Mark m)
{
Glyph_class gclass = glyph_class_of(g);
attr_t attr = A_normal;
switch (gclass) {
case Glyph_class_unknown:
attr = A_bold | fg_bg(C_red, C_natural);
break;
case Glyph_class_grid:
attr = A_bold | fg_bg(C_black, C_natural);
break;
case Glyph_class_comment:
attr = A_dim | Cdef_normal;
break;
case Glyph_class_uppercase:
attr = A_normal | fg_bg(C_black, C_cyan);
break;
case Glyph_class_lowercase:
case Glyph_class_movement:
case Glyph_class_numeric:
attr = A_bold | Cdef_normal;
break;
case Glyph_class_bang:
attr = A_bold | Cdef_normal;
break;
}
if (gclass != Glyph_class_comment) {
if ((m & (Mark_flag_lock | Mark_flag_input)) == (Mark_flag_lock | Mark_flag_input)) {
// Standard locking input
attr = A_normal | Cdef_normal;
} else if ((m & Mark_flag_input) == Mark_flag_input) {
// Non-locking input
attr = A_normal | Cdef_normal;
} else if (m & Mark_flag_lock) {
// Locked only
attr = A_dim | Cdef_normal;
}
}
if (m & Mark_flag_output) {
attr = A_reverse;
}
if (m & Mark_flag_haste_input) {
attr = A_bold | fg_bg(C_cyan, C_natural);
}
return attr;
}
void print_activity_indicator(WINDOW *win, Usz activity_counter)
{
// 7 segments that can each light up as Colors different colors.
// This gives us Colors^Segments total configurations.
enum
{
Segments = 7,
Colors = 4
};
Usz states = 1; // calculate Colors^Segments
for (Usz i = 0; i < Segments; ++i)
states *= Colors;
// Wrap the counter to the range of displayable configurations.
Usz val = activity_counter % states;
chtype lamps[Colors];
#if 1 // Appearance where segments are always lit
lamps[0] = ACS_HLINE | fg_bg(C_black, C_natural) | A_bold;
lamps[1] = ACS_HLINE | fg_bg(C_white, C_natural) | A_normal;
lamps[2] = ACS_HLINE | A_bold;
lamps[3] = lamps[1];
#elif 0 // Brighter appearance where segments are always lit
lamps[0] = ACS_HLINE | fg_bg(C_black, C_natural) | A_bold;
lamps[1] = ACS_HLINE | A_normal;
lamps[2] = ACS_HLINE | A_bold;
lamps[3] = lamps[1];
#else // Appearance where segments can turn off completely
lamps[0] = ' ';
lamps[1] = ACS_HLINE | fg_bg(C_black, C_natural) | A_bold;
lamps[2] = ACS_HLINE | A_normal;
lamps[3] = lamps[1];
#endif
chtype buffer[Segments];
for (Usz i = 0; i < Segments; ++i) {
// Instead of a left-to-right, straightforward ascending least-to-most
// significant digits display, we'll display it as a spiral.
Usz j = i % 2 ? (6 - i / 2) : (i / 2);
buffer[j] = lamps[val % Colors];
val = val / Colors;
}
waddchnstr(win, buffer, Segments);
// If you want to see what various combinations of colors and attributes look
// like in different terminals.
#if 0
waddch(win, 'a' | fg_bg(C_black, C_natural) | A_dim);
waddch(win, 'b' | fg_bg(C_black, C_natural) | A_normal);
waddch(win, 'c' | fg_bg(C_black, C_natural) | A_bold);
waddch(win, 'd' | A_dim);
waddch(win, 'e' | A_normal);
waddch(win, 'f' | A_bold);
waddch(win, 'g' | fg_bg(C_white, C_natural) | A_dim);
waddch(win, 'h' | fg_bg(C_white, C_natural) | A_normal);
waddch(win, 'i' | fg_bg(C_white, C_natural) | A_bold);
#endif
}
void advance_faketab(WINDOW *win, int offset_x, int tabstop)
{
if (tabstop < 1)
return;
int y, x, h, w;
getyx(win, y, x);
getmaxyx(win, h, w);
(void)h;
x = ((x + tabstop - 1) / tabstop) * tabstop + offset_x % tabstop;
if (w < 1)
w = 1;
if (x >= w)
x = w - 1;
wmove(win, y, x);
}
void apply_time_to_sustained_notes(
Oosc_dev *oosc_dev,
Midi_mode *midi_mode,
double time_elapsed,
Susnote_list *susnote_list,
double *next_note_off_deadline)
{
Usz 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, susnotes_off + end_removed);
}
}
// The way orca handles MIDI sustains, timing, and overlapping note-ons (plus
// the 'mono' thing being added) has changed multiple times over time. Now we
// are in a situation where this function is a complete mess and needs an
// overhaul. If you see something in the function below and think, "wait, that
// seems redundant/weird", that's because it is, not because there's a good
// reason.
void send_output_events(
Oosc_dev *oosc_dev,
Midi_mode *midi_mode,
Usz bpm,
Susnote_list *susnote_list,
Oevent const *events,
Usz count)
{
enum
{
Midi_on_capacity = 512
};
typedef struct {
U8 channel;
U8 note_number;
U8 velocity;
} Midi_note_on;
typedef struct {
U8 note_number;
U8 velocity;
U8 duration;
} Midi_mono_on;
Midi_note_on midi_note_ons[Midi_on_capacity];
Midi_mono_on midi_mono_ons[16]; // Keep only a single one per channel
Susnote new_susnotes[Midi_on_capacity];
Usz midi_note_count = 0;
Usz monofied_chans = 0; // bitset of channels with new mono notes
double frame_secs = 60.0 / (double)bpm / 4.0;
for (Usz i = 0; i < count; ++i) {
Oevent const *e = events + i;
switch ((Oevent_types)e->any.oevent_type) {
case Oevent_type_midi_note: {
if (midi_note_count == Midi_on_capacity)
break;
Oevent_midi_note const *em = &e->midi_note;
Usz note_number = (Usz)(12u * em->octave + em->note);
if (note_number > 127)
note_number = 127;
Usz channel = em->channel;
if (channel > 15)
break;
if (em->mono) {
// 'mono' note-ons are strange. The more typical branch you'd expect to
// see, where you can play multiple notes per channel, is below.
monofied_chans |= 1u << (channel & 0xFu);
midi_mono_ons[channel] = (Midi_mono_on){ .note_number = (U8)note_number,
.velocity = em->velocity,
.duration = em->duration };
} else {
midi_note_ons[midi_note_count] = (Midi_note_on){ .channel = (U8)channel,
.note_number = (U8)note_number,
.velocity = em->velocity };
new_susnotes[midi_note_count] = (Susnote){
.remaining = (float)(frame_secs * (double)em->duration),
.chan_note = (U16)((channel << 8u) | note_number)
};
++midi_note_count;
}
break;
}
case Oevent_type_midi_cc: {
Oevent_midi_cc const *ec = &e->midi_cc;
// Note that we're not preserving the exact order of MIDI events as
// emitted by the orca VM. Notes and CCs that are emitted in the same
// step will always have the CCs sent first. Not sure if this is OK or
// not. If it's not OK, we can either loop again a second time to always
// send CCs after notes, or if that's not also OK, we can make the stack
// buffer more complicated and interleave the CCs in it.
send_midi_chan_msg(oosc_dev, midi_mode, 0xb, ec->channel, ec->control, ec->value);
break;
}
case Oevent_type_midi_pb: {
Oevent_midi_pb const *ep = &e->midi_pb;
// Same caveat regarding ordering with MIDI CC also applies here.
send_midi_chan_msg(oosc_dev, midi_mode, 0xe, ep->channel, ep->lsb, ep->msb);
break;
}
case Oevent_type_osc_ints: {
// kinda lame
if (!oosc_dev)
continue;
Oevent_osc_ints const *eo = &e->osc_ints;
char path[] = { '/', eo->glyph, '\0' };
I32 ints[ORCA_ARRAY_COUNTOF(eo->numbers)];
Usz nnum = eo->count;
for (Usz inum = 0; inum < nnum; ++inum) {
ints[inum] = eo->numbers[inum];
}
oosc_send_int32s(oosc_dev, path, ints, nnum);
break;
}
case Oevent_type_udp_string: {
if (!oosc_dev)
continue;
Oevent_udp_string const *eo = &e->udp_string;
oosc_send_datagram(oosc_dev, eo->chars, eo->count);
break;
}
}
}
do_note_ons:
if (midi_note_count > 0) {
Usz start_note_offs, end_note_offs;
susnote_list_add_notes(
susnote_list,
new_susnotes,
midi_note_count,
&start_note_offs,
&end_note_offs);
if (start_note_offs != end_note_offs) {
Susnote const *restrict susnotes_off = susnote_list->buffer;
send_midi_note_offs(
oosc_dev,
midi_mode,
susnotes_off + start_note_offs,
susnotes_off + end_note_offs);
}
for (Usz i = 0; i < midi_note_count; ++i) {
Midi_note_on mno = midi_note_ons[i];
send_midi_chan_msg(oosc_dev, midi_mode, 0x9, mno.channel, mno.note_number, mno.velocity);
}
}
if (monofied_chans) {
// The behavior we end up with is that if regular note-ons are played in
// the same frame/step as a mono, the regular note-ons will have the actual
// MIDI note on sent, followed immediately by a MIDI note off. I don't know
// if this is good or not.
Usz start_note_offs, end_note_offs;
susnote_list_remove_by_chan_mask(susnote_list, monofied_chans, &start_note_offs, &end_note_offs);
if (start_note_offs != end_note_offs) {
Susnote const *restrict susnotes_off = susnote_list->buffer;
send_midi_note_offs(
oosc_dev,
midi_mode,
susnotes_off + start_note_offs,
susnotes_off + end_note_offs);
}
midi_note_count = 0; // We're going to use this list again. Reset it.
for (Usz i = 0; i < 16; i++) { // Add these notes to list of note-ons
if (!(monofied_chans & 1u << i))
continue;
midi_note_ons[midi_note_count] = (Midi_note_on){ .channel = (U8)i,
.note_number = midi_mono_ons[i].note_number,
.velocity = midi_mono_ons[i].velocity };
new_susnotes[midi_note_count] = (Susnote){
.remaining = (float)(frame_secs * (double)midi_mono_ons[i].duration),
.chan_note = (U16)((i << 8u) | midi_mono_ons[i].note_number)
};
midi_note_count++;
}
monofied_chans = false;
goto do_note_ons; // lol super wasteful for doing susnotes again
}
}
void ged_cursor_init(Ged_cursor *tc)
{
tc->x = tc->y = 0;
tc->w = tc->h = 1;
}
void ged_init(Ged *a, Usz undo_limit, Usz init_bpm, Usz init_seed)
{
field_init(&a->field);
field_init(&a->scratch_field);
field_init(&a->clipboard_field);
mbuf_reusable_init(&a->mbuf_r);
undo_history_init(&a->undo_hist, undo_limit);
oevent_list_init(&a->oevent_list);
oevent_list_init(&a->scratch_oevent_list);
susnote_list_init(&a->susnote_list);
ged_cursor_init(&a->ged_cursor);
a->tick_num = 0;
a->ruler_spacing_y = a->ruler_spacing_x = 8;
a->input_mode = Ged_input_mode_normal;
a->bpm = init_bpm;
a->clock = 0;
a->accum_secs = 0.0;
a->time_to_next_note_off = 1.0;
a->oosc_dev = NULL;
midi_mode_init_null(&a->midi_mode);
a->activity_counter = 0;
a->random_seed = init_seed;
a->drag_start_y = a->drag_start_x = 0;
a->win_h = a->win_w = 0;
a->softmargin_y = a->softmargin_x = 0;
a->grid_h = 0;
a->grid_scroll_y = a->grid_scroll_x = 0;
a->midi_bclock_sixths = 0;
a->needs_remarking = true;
a->is_draw_dirty = false;
a->is_playing = false;
a->midi_bclock = false;
a->draw_event_list = false;
a->is_mouse_down = false;
a->is_mouse_dragging = false;
a->is_hud_visible = false;
}
void ged_deinit(Ged *a)
{
field_deinit(&a->field);
field_deinit(&a->scratch_field);
field_deinit(&a->clipboard_field);
mbuf_reusable_deinit(&a->mbuf_r);
undo_history_deinit(&a->undo_hist);
oevent_list_deinit(&a->oevent_list);
oevent_list_deinit(&a->scratch_oevent_list);
susnote_list_deinit(&a->susnote_list);
if (a->oosc_dev)
oosc_dev_destroy(a->oosc_dev);
midi_mode_deinit(&a->midi_mode);
}
void clear_and_run_vm(
Glyph *restrict gbuf,
Mark *restrict mbuf,
Usz height,
Usz width,
Usz tick_number,
Oevent_list *oevent_list,
Usz random_seed)
{
mbuffer_clear(mbuf, height, width);
oevent_list_clear(oevent_list);
orca_run(gbuf, mbuf, height, width, tick_number, oevent_list, random_seed);
}
void ged_cursor_move_relative(Ged_cursor *tc, Usz field_h, Usz field_w, Isz delta_y, Isz delta_x)
{
Isz y0 = (Isz)tc->y + delta_y;
Isz x0 = (Isz)tc->x + delta_x;
if (y0 >= (Isz)field_h)
y0 = (Isz)field_h - 1;
if (y0 < 0)
y0 = 0;
if (x0 >= (Isz)field_w)
x0 = (Isz)field_w - 1;
if (x0 < 0)
x0 = 0;
tc->y = (Usz)y0;
tc->x = (Usz)x0;
}
bool ged_is_draw_dirty(Ged *a)
{
return a->is_draw_dirty || a->needs_remarking;
}
void ged_stop_all_sustained_notes(Ged *a)
{
Susnote_list *sl = &a->susnote_list;
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 ged_clear_osc_udp(Ged *a)
{
if (a->oosc_dev) {
if (a->midi_mode.any.type == Midi_mode_type_osc_bidule) {
ged_stop_all_sustained_notes(a);
}
oosc_dev_destroy(a->oosc_dev);
a->oosc_dev = NULL;
}
}
bool ged_is_using_osc_udp(Ged *a)
{
return (bool)a->oosc_dev;
}
bool ged_set_osc_udp(Ged *a, char const *dest_addr, char const *dest_port)
{
ged_clear_osc_udp(a);
if (dest_port) {
Oosc_udp_create_error err = oosc_dev_create_udp(&a->oosc_dev, dest_addr, dest_port);
if (err) {
return false;
}
}
return true;
}
double ged_secs_to_deadline(Ged const *a)
{
if (!a->is_playing)
return 1.0;
double secs_span = 60.0 / (double)a->bpm / 4.0;
// If MIDI beat clock output is enabled, we need to send an event every 24
// parts per quarter note. Since we've already divided quarter notes into 4
// for ORCA's timing semantics, divide it by a further 6. This same logic is
// mirrored in ged_do_stuff().
if (a->midi_bclock)
secs_span /= 6.0;
double rem = secs_span - (stm_sec(stm_since(a->clock)) + a->accum_secs);
double next_note_off = a->time_to_next_note_off;
if (next_note_off < rem)
rem = next_note_off;
if (rem < 0.0)
rem = 0.0;
return rem;
}
void ged_do_stuff(Ged *a)
{
if (!a->is_playing)
return;
double secs_span = 60.0 / (double)a->bpm / 4.0;
if (a->midi_bclock) // see also ged_secs_to_deadline()
secs_span /= 6.0;
Oosc_dev *oosc_dev = a->oosc_dev;
Midi_mode *midi_mode = &a->midi_mode;
bool crossed_deadline = false;
#if TIME_DEBUG
Usz spins = 0;
U64 spin_start = stm_now();
(void)spin_start;
#endif
for (;;) {
U64 now = stm_now();
U64 diff = stm_diff(now, a->clock);
double sdiff = stm_sec(diff) + a->accum_secs;
if (sdiff >= secs_span) {
a->clock = now;
a->accum_secs = sdiff - secs_span;
#if TIME_DEBUG
if (a->accum_secs > 0.000001) {
fprintf(stderr, "late: %.2f u-secs\n", a->accum_secs * 1000 * 1000);
if (a->accum_secs > 0.00005) {
fprintf(stderr, "guilty timeout: %d\n", spin_track_timeout);
}
}
#endif
crossed_deadline = true;
break;
}
if (secs_span - sdiff > ms_to_sec(0.1))
break;
#if TIME_DEBUG
++spins;
#endif
}
#if TIME_DEBUG
if (spins > 0) {
fprintf(
stderr,
"%d spins in %f us with timeout %d\n",
(int)spins,
stm_us(stm_since(spin_start)),
spin_track_timeout);
}
#endif
if (!crossed_deadline)
return;
if (a->midi_bclock) {
send_midi_byte(oosc_dev, midi_mode, 0xF8); // MIDI beat clock
Usz sixths = a->midi_bclock_sixths;
a->midi_bclock_sixths = (U8)((sixths + 1) % 6);
if (sixths != 0)
return;
}
apply_time_to_sustained_notes(
oosc_dev,
midi_mode,
secs_span,
&a->susnote_list,
&a->time_to_next_note_off);
clear_and_run_vm(
a->field.buffer,
a->mbuf_r.buffer,
a->field.height,
a->field.width,
a->tick_num,
&a->oevent_list,
a->random_seed);
++a->tick_num;
a->needs_remarking = true;
a->is_draw_dirty = true;
Usz count = a->oevent_list.count;
if (count > 0) {
send_output_events(oosc_dev, midi_mode, a->bpm, &a->susnote_list, a->oevent_list.buffer, count);
a->activity_counter += count;
}
}
Isz isz_clamp(Isz x, Isz low, Isz high)
{
return x < low ? low : x > high ? high : x;
}
// todo cleanup to use proper unsigned/signed w/ overflow check
Isz scroll_offset_on_axis_for_cursor_pos(Isz win_len, Isz cont_len, Isz cursor_pos, Isz pad, Isz cur_scroll)
{
if (win_len <= 0 || cont_len <= 0)
return 0;
if (cont_len <= win_len)
return -((win_len - cont_len) / 2);
if (pad * 2 >= win_len) {
pad = (win_len - 1) / 2;
}
Isz min_vis_scroll = cursor_pos - win_len + 1 + pad;
Isz max_vis_scroll = cursor_pos - pad;
Isz new_scroll;
if (cur_scroll < min_vis_scroll)
new_scroll = min_vis_scroll;
else if (cur_scroll > max_vis_scroll)
new_scroll = max_vis_scroll;
else
new_scroll = cur_scroll;
return isz_clamp(new_scroll, 0, cont_len - win_len);
}
void ged_make_cursor_visible(Ged *a)
{
int grid_h = a->grid_h;
int cur_scr_y = a->grid_scroll_y;
int cur_scr_x = a->grid_scroll_x;
int new_scr_y = (int)scroll_offset_on_axis_for_cursor_pos(
grid_h,
(Isz)a->field.height,
(Isz)a->ged_cursor.y,
5,
cur_scr_y);
int new_scr_x = (int)scroll_offset_on_axis_for_cursor_pos(
a->win_w,
(Isz)a->field.width,
(Isz)a->ged_cursor.x,
5,
cur_scr_x);
if (new_scr_y == cur_scr_y && new_scr_x == cur_scr_x)
return;
a->grid_scroll_y = new_scr_y;
a->grid_scroll_x = new_scr_x;
a->is_draw_dirty = true;
}
void ged_update_internal_geometry(Ged *a)
{
int win_h = a->win_h;
int softmargin_y = a->softmargin_y;
bool show_hud = win_h > Hud_height + 1;
int grid_h = show_hud ? win_h - Hud_height : win_h;
if (grid_h > a->field.height) {
int halfy = (grid_h - a->field.height + 1) / 2;
grid_h -= halfy < softmargin_y ? halfy : softmargin_y;
}
a->grid_h = grid_h;
a->is_draw_dirty = true;
a->is_hud_visible = show_hud;
}
void ged_set_window_size(Ged *a, int win_h, int win_w, int softmargin_y, int softmargin_x)
{
if (a->win_h == win_h && a->win_w == win_w && a->softmargin_y == softmargin_y &&
a->softmargin_x == softmargin_x) {
return;
}
a->win_h = win_h;
a->win_w = win_w;
a->softmargin_y = softmargin_y;
a->softmargin_x = softmargin_x;
ged_update_internal_geometry(a);
ged_make_cursor_visible(a);
}
void ged_cursor_confine(Ged_cursor *tc, Usz height, Usz width)
{
if (height == 0 || width == 0)
return;
if (tc->y >= height)
tc->y = height - 1;
if (tc->x >= width)
tc->x = width - 1;
}
void draw_oevent_list(WINDOW *win, Oevent_list const *oevent_list)
{
wmove(win, 0, 0);
int win_h = getmaxy(win);
wprintw(win, "Count: %d", (int)oevent_list->count);
for (Usz i = 0, num_events = oevent_list->count; i < num_events; ++i) {
int cury = getcury(win);
if (cury + 1 >= win_h)
return;
wmove(win, cury + 1, 0);
Oevent const *ev = oevent_list->buffer + i;
Oevent_types evt = ev->any.oevent_type;
switch (evt) {
case Oevent_type_midi_note: {
Oevent_midi_note const *em = &ev->midi_note;
wprintw(
win,
"MIDI Note\tchannel %d\toctave %d\tnote %d\tvelocity %d\tlength %d",
(int)em->channel,
(int)em->octave,
(int)em->note,
(int)em->velocity,
(int)em->duration);
break;
}
case Oevent_type_midi_cc: {
Oevent_midi_cc const *ec = &ev->midi_cc;
wprintw(
win,
"MIDI CC\tchannel %d\tcontrol %d\tvalue %d",
(int)ec->channel,
(int)ec->control,
(int)ec->value);
break;
}
case Oevent_type_midi_pb: {
Oevent_midi_pb const *ep = &ev->midi_pb;
wprintw(
win,
"MIDI PB\tchannel %d\tmsb %d\tlsb %d",
(int)ep->channel,
(int)ep->msb,
(int)ep->lsb);
break;
}
case Oevent_type_osc_ints: {
Oevent_osc_ints const *eo = &ev->osc_ints;
wprintw(win, "OSC\t%c\tcount: %d ", eo->glyph, eo->count);
waddch(win, ACS_VLINE);
for (Usz j = 0; j < eo->count; ++j) {
wprintw(win, " %d", eo->numbers[j]);
}
break;
}
case Oevent_type_udp_string: {
Oevent_udp_string const *eo = &ev->udp_string;
wprintw(win, "UDP\tcount %d\t", (int)eo->count);
for (Usz j = 0; j < (Usz)eo->count; ++j) {
waddch(win, (chtype)eo->chars[j]);
}
break;
}
}
}
}
void ged_resize_grid(
Field *field,
Mbuf_reusable *mbr,
Usz new_height,
Usz new_width,
Usz tick_num,
Field *scratch_field,
Undo_history *undo_hist,
Ged_cursor *ged_cursor)
{
assert(new_height > 0 && new_width > 0);
undo_history_push(undo_hist, field, tick_num);
field_copy(field, scratch_field);
field_resize_raw(field, new_height, new_width);
// junky copies until i write a smarter thing
memset(field->buffer, '.', new_height * new_width * sizeof(Glyph));
gbuffer_copy_subrect(
scratch_field->buffer,
field->buffer,
scratch_field->height,
scratch_field->width,
field->height,
field->width,
0,
0,
0,
0,
scratch_field->height,
scratch_field->width);
ged_cursor_confine(ged_cursor, new_height, new_width);
mbuf_reusable_ensure_size(mbr, new_height, new_width);
}
void draw_grid_cursor(
WINDOW *win,
int draw_y,
int draw_x,
int draw_h,
int draw_w,
Glyph const *gbuffer,
Usz field_h,
Usz field_w,
int scroll_y,
int scroll_x,
Usz cursor_y,
Usz cursor_x,
Usz cursor_h,
Usz cursor_w,
Ged_input_mode input_mode,
bool is_playing)
{
(void)input_mode;
if (cursor_y >= field_h || cursor_x >= field_w)
return;
if (scroll_y < 0) {
draw_y += -scroll_y;
scroll_y = 0;
}
if (scroll_x < 0) {
draw_x += -scroll_x;
scroll_x = 0;
}
Usz offset_y = (Usz)scroll_y;
Usz offset_x = (Usz)scroll_x;
if (offset_y >= field_h || offset_x >= field_w)
return;
if (draw_y >= draw_h || draw_x >= draw_w)
return;
attr_t const curs_attr = A_reverse | A_bold | fg_bg(C_yellow, C_natural);
if (offset_y <= cursor_y && offset_x <= cursor_x) {
Usz cdraw_y = cursor_y - offset_y + (Usz)draw_y;
Usz cdraw_x = cursor_x - offset_x + (Usz)draw_x;
if (cdraw_y < (Usz)draw_h && cdraw_x < (Usz)draw_w) {
Glyph beneath = gbuffer[cursor_y * field_w + cursor_x];
char displayed;
if (beneath == '.') {
displayed = is_playing ? '@' : '~';
} else {
displayed = beneath;
}
chtype ch = (chtype)displayed | curs_attr;
wmove(win, (int)cdraw_y, (int)cdraw_x);
waddchnstr(win, &ch, 1);
}
}
// Early out for selection area that won't have any visual effect
if (cursor_h <= 1 && cursor_w <= 1)
return;
// Now mutate visually selected area under grid to have the selection color
// attributes. (This will rewrite the attributes on the cursor character we
// wrote above, but if it was the only character that would have been
// changed, we already early-outed.)
//
// We'll do this by reading back the characters on the grid from the curses
// window buffer, changing the attributes, then writing it back. This is
// easier than pulling the glyphs from the gbuffer, since we already did the
// ruler calculations to turn . into +, and we don't need special behavior
// for any other attributes (e.g. we don't show a special state for selected
// uppercase characters.)
//
// First, confine cursor selection to the grid field/gbuffer that actually
// exists, in case the cursor selection exceeds the area of the field.
Usz sel_rows = field_h - cursor_y;
if (cursor_h < sel_rows)
sel_rows = cursor_h;
Usz sel_cols = field_w - cursor_x;
if (cursor_w < sel_cols)
sel_cols = cursor_w;
// Now, confine the selection area to what's visible on screen. Kind of
// tricky since we have to handle it being partially visible from any edge on
// any axis, and we have to be mindful overflow.
Usz vis_sel_y;
Usz vis_sel_x;
if (offset_y > cursor_y) {
vis_sel_y = 0;
Usz sub_y = offset_y - cursor_y;
if (sub_y > sel_rows)
sel_rows = 0;
else
sel_rows -= sub_y;
} else {
vis_sel_y = cursor_y - offset_y;
}
if (offset_x > cursor_x) {
vis_sel_x = 0;
Usz sub_x = offset_x - cursor_x;
if (sub_x > sel_cols)
sel_cols = 0;
else
sel_cols -= sub_x;
} else {
vis_sel_x = cursor_x - offset_x;
}
vis_sel_y += (Usz)draw_y;
vis_sel_x += (Usz)draw_x;
if (vis_sel_y >= (Usz)draw_h || vis_sel_x >= (Usz)draw_w)
return;
Usz vis_sel_h = (Usz)draw_h - vis_sel_y;
Usz vis_sel_w = (Usz)draw_w - vis_sel_x;
if (sel_rows < vis_sel_h)
vis_sel_h = sel_rows;
if (sel_cols < vis_sel_w)
vis_sel_w = sel_cols;
if (vis_sel_w == 0 || vis_sel_h == 0)
return;
enum
{
Bufcount = 4096
};
chtype chbuffer[Bufcount];
if (Bufcount < vis_sel_w)
vis_sel_w = Bufcount;
for (Usz iy = 0; iy < vis_sel_h; ++iy) {
int at_y = (int)(vis_sel_y + iy);
int num = mvwinchnstr(win, at_y, (int)vis_sel_x, chbuffer, (int)vis_sel_w);
for (int ix = 0; ix < num; ++ix) {
chbuffer[ix] = (chtype)((chbuffer[ix] & (A_CHARTEXT | A_ALTCHARSET)) | (chtype)curs_attr);
}
waddchnstr(win, chbuffer, (int)num);
}
}
void draw_hud(
WINDOW *win,
int win_y,
int win_x,
int height,
int width,
char const *filename,
Usz field_h,
Usz field_w,
Usz ruler_spacing_y,
Usz ruler_spacing_x,
Usz tick_num,
Usz bpm,
Ged_cursor const *ged_cursor,
Ged_input_mode input_mode,
Usz activity_counter)
{
(void)height;
(void)width;
enum
{
Tabstop = 8
};
wmove(win, win_y, win_x);
wprintw(win, "%zux%zu", field_w, field_h);
advance_faketab(win, win_x, Tabstop);
wprintw(win, "%zu/%zu", ruler_spacing_x, ruler_spacing_y);
advance_faketab(win, win_x, Tabstop);
wprintw(win, "%zuf", tick_num);
advance_faketab(win, win_x, Tabstop);
wprintw(win, "%zu", bpm);
advance_faketab(win, win_x, Tabstop);
print_activity_indicator(win, activity_counter);
wmove(win, win_y + 1, win_x);
wprintw(win, "%zu,%zu", ged_cursor->x, ged_cursor->y);
advance_faketab(win, win_x, Tabstop);
wprintw(win, "%zu:%zu", ged_cursor->w, ged_cursor->h);
advance_faketab(win, win_x, Tabstop);
switch (input_mode) {
case Ged_input_mode_normal:
wattrset(win, A_normal);
waddstr(win, "insert");
break;
case Ged_input_mode_append:
wattrset(win, A_bold);
waddstr(win, "append");
break;
case Ged_input_mode_selresize:
wattrset(win, A_bold);
waddstr(win, "select");
break;
case Ged_input_mode_slide:
wattrset(win, A_reverse);
waddstr(win, "slide");
break;
}
advance_faketab(win, win_x, Tabstop);
wattrset(win, A_normal);
waddstr(win, filename);
}
void draw_glyphs_grid(
WINDOW *win,
int draw_y,
int draw_x,
int draw_h,
int draw_w,
Glyph const *restrict gbuffer,
Mark const *restrict mbuffer,
Usz field_h,
Usz field_w,
Usz offset_y,
Usz offset_x,
Usz ruler_spacing_y,
Usz ruler_spacing_x,
bool use_fancy_dots,
bool use_fancy_rulers)
{
assert(draw_y >= 0 && draw_x >= 0);
assert(draw_h >= 0 && draw_w >= 0);
enum
{
Bufcount = 4096
};
chtype chbuffer[Bufcount];
// todo buffer limit
if (offset_y >= field_h || offset_x >= field_w)
return;
if (draw_y >= draw_h || draw_x >= draw_w)
return;
Usz rows = (Usz)(draw_h - draw_y);
if (field_h - offset_y < rows)
rows = field_h - offset_y;
Usz cols = (Usz)(draw_w - draw_x);
if (field_w - offset_x < cols)
cols = field_w - offset_x;
if (Bufcount < cols)
cols = Bufcount;
if (rows == 0 || cols == 0)
return;
bool use_rulers = ruler_spacing_y != 0 && ruler_spacing_x != 0;
chtype bullet = use_fancy_dots ? ACS_BULLET : '.';
enum
{
T = 1 << 0,
B = 1 << 1,
L = 1 << 2,
R = 1 << 3
};
chtype rs[(T | B | L | R) + 1];
if (use_rulers) {
for (Usz i = 0; i < sizeof rs / sizeof(chtype); ++i)
rs[i] = '+';
if (use_fancy_rulers) {
rs[T | L] = ACS_ULCORNER;
rs[T | R] = ACS_URCORNER;
rs[B | L] = ACS_LLCORNER;
rs[B | R] = ACS_LRCORNER;
rs[T] = ACS_TTEE;
rs[B] = ACS_BTEE;
rs[L] = ACS_LTEE;
rs[R] = ACS_RTEE;
}
}
for (Usz iy = 0; iy < rows; ++iy) {
Usz line_offset = (offset_y + iy) * field_w + offset_x;
Glyph const *g_row = gbuffer + line_offset;
Mark const *m_row = mbuffer + line_offset;
bool use_y_ruler = use_rulers && (iy + offset_y) % ruler_spacing_y == 0;
for (Usz ix = 0; ix < cols; ++ix) {
Glyph g = g_row[ix];
Mark m = m_row[ix];
chtype ch;
if (g == '.') {
if (use_y_ruler && (ix + offset_x) % ruler_spacing_x == 0) {
int p = 0; // clang-format off
if (iy + offset_y == 0 ) p |= T;
if (iy + offset_y + 1 == field_h) p |= B;
if (ix + offset_x == 0 ) p |= L;
if (ix + offset_x + 1 == field_w) p |= R;
ch = rs[p]; // clang-format on
} else {
ch = bullet;
}
} else {
ch = (chtype)g;
}
attr_t attrs = term_attrs_of_cell(g, m);
chbuffer[ix] = ch | attrs;
}
wmove(win, draw_y + (int)iy, draw_x);
waddchnstr(win, chbuffer, (int)cols);
}
}
void draw_glyphs_grid_scrolled(
WINDOW *win,
int draw_y,
int draw_x,
int draw_h,
int draw_w,
Glyph const *restrict gbuffer,
Mark const *restrict mbuffer,
Usz field_h,
Usz field_w,
int scroll_y,
int scroll_x,
Usz ruler_spacing_y,
Usz ruler_spacing_x,
bool use_fancy_dots,
bool use_fancy_rulers)
{
if (scroll_y < 0) {
draw_y += -scroll_y;
scroll_y = 0;
}
if (scroll_x < 0) {
draw_x += -scroll_x;
scroll_x = 0;
}
draw_glyphs_grid(
win,
draw_y,
draw_x,
draw_h,
draw_w,
gbuffer,
mbuffer,
field_h,
field_w,
(Usz)scroll_y,
(Usz)scroll_x,
ruler_spacing_y,
ruler_spacing_x,
use_fancy_dots,
use_fancy_rulers);
}
void ged_draw(Ged *a, WINDOW *win, char const *filename, bool use_fancy_dots, bool use_fancy_rulers)
{
// We can predictavely step the next simulation tick and then use the
// resulting mark buffer for better UI visualization. If we don't do this,
// after loading a fresh file or after the user performs some edit (or even
// after a regular simulation step), the new glyph buffer won't have had
// phase 0 of the simulation run, which means the ports and other flags won't
// be set on the mark buffer, so the colors for disabled cells, ports, etc.
// won't be set.
//
// We can just perform a simulation step using the current state, keep the
// mark buffer that it produces, then roll back the glyph buffer to where it
// was before. This should produce results similar to having specialized UI
// code that looks at each glyph and figures out the ports, etc.
if (a->needs_remarking && !a->is_playing) {
field_resize_raw_if_necessary(&a->scratch_field, a->field.height, a->field.width);
field_copy(&a->field, &a->scratch_field);
mbuf_reusable_ensure_size(&a->mbuf_r, a->field.height, a->field.width);
clear_and_run_vm(
a->scratch_field.buffer,
a->mbuf_r.buffer,
a->field.height,
a->field.width,
a->tick_num,
&a->scratch_oevent_list,
a->random_seed);
a->needs_remarking = false;
}
int win_w = a->win_w;
draw_glyphs_grid_scrolled(
win,
0,
0,
a->grid_h,
win_w,
a->field.buffer,
a->mbuf_r.buffer,
a->field.height,
a->field.width,
a->grid_scroll_y,
a->grid_scroll_x,
a->ruler_spacing_y,
a->ruler_spacing_x,
use_fancy_dots,
use_fancy_rulers);
draw_grid_cursor(
win,
0,
0,
a->grid_h,
win_w,
a->field.buffer,
a->field.height,
a->field.width,
a->grid_scroll_y,
a->grid_scroll_x,
a->ged_cursor.y,
a->ged_cursor.x,
a->ged_cursor.h,
a->ged_cursor.w,
a->input_mode,
a->is_playing);
if (a->is_hud_visible) {
filename = filename ? filename : "unnamed";
int hud_x = win_w > 50 + a->softmargin_x * 2 ? a->softmargin_x : 0;
draw_hud(
win,
a->grid_h,
hud_x,
Hud_height,
win_w,
filename,
a->field.height,
a->field.width,
a->ruler_spacing_y,
a->ruler_spacing_x,
a->tick_num,
a->bpm,
&a->ged_cursor,
a->input_mode,
a->activity_counter);
}
if (a->draw_event_list)
draw_oevent_list(win, &a->oevent_list);
a->is_draw_dirty = false;
}
void ged_send_osc_bpm(Ged *a, I32 bpm)
{
send_num_message(a->oosc_dev, "/orca/bpm", bpm);
}
void ged_adjust_bpm(Ged *a, Isz delta_bpm)
{
Isz new_bpm = (Isz)a->bpm;
if (delta_bpm < 0 || new_bpm < INT_MAX - delta_bpm)
new_bpm += delta_bpm;
else
new_bpm = INT_MAX;
if (new_bpm < 1)
new_bpm = 1;
if ((Usz)new_bpm != a->bpm) {
a->bpm = (Usz)new_bpm;
a->is_draw_dirty = true;
ged_send_osc_bpm(a, (I32)new_bpm);
}
}
void ged_move_cursor_relative(Ged *a, Isz delta_y, Isz delta_x)
{
ged_cursor_move_relative(&a->ged_cursor, a->field.height, a->field.width, delta_y, delta_x);
ged_make_cursor_visible(a);
a->is_draw_dirty = true;
}
Usz guarded_selection_axis_resize(Usz x, int delta)
{
if (delta < 0) {
if (delta > INT_MIN && (Usz)(-delta) < x) {
x -= (Usz)(-delta);
}
} else if (x < SIZE_MAX - (Usz)delta) {
x += (Usz)delta;
}
return x;
}
void ged_modify_selection_size(Ged *a, int delta_y, int delta_x)
{
Usz cur_h = a->ged_cursor.h, cur_w = a->ged_cursor.w;
Usz new_h = guarded_selection_axis_resize(cur_h, delta_y);
Usz new_w = guarded_selection_axis_resize(cur_w, delta_x);
if (cur_h != new_h || cur_w != new_w) {
a->ged_cursor.h = new_h;
a->ged_cursor.w = new_w;
a->is_draw_dirty = true;
}
}
bool ged_try_selection_clipped_to_field(Ged const *a, Usz *out_y, Usz *out_x, Usz *out_h, Usz *out_w)
{
Usz curs_y = a->ged_cursor.y, curs_x = a->ged_cursor.x;
Usz curs_h = a->ged_cursor.h, curs_w = a->ged_cursor.w;
Usz field_h = a->field.height, field_w = a->field.width;
if (curs_y >= field_h || curs_x >= field_w)
return false;
if (field_h - curs_y < curs_h)
curs_h = field_h - curs_y;
if (field_w - curs_x < curs_w)
curs_w = field_w - curs_x;
*out_y = curs_y;
*out_x = curs_x;
*out_h = curs_h;
*out_w = curs_w;
return true;
}
bool ged_slide_selection(Ged *a, int delta_y, int delta_x)
{
Usz curs_y_0, curs_x_0, curs_h_0, curs_w_0;
Usz curs_y_1, curs_x_1, curs_h_1, curs_w_1;
if (!ged_try_selection_clipped_to_field(a, &curs_y_0, &curs_x_0, &curs_h_0, &curs_w_0))
return false;
ged_move_cursor_relative(a, delta_y, delta_x);
if (!ged_try_selection_clipped_to_field(a, &curs_y_1, &curs_x_1, &curs_h_1, &curs_w_1))
return false;
// Don't create a history entry if nothing is going to happen.
if (curs_y_0 == curs_y_1 && curs_x_0 == curs_x_1 && curs_h_0 == curs_h_1 && curs_w_0 == curs_w_1)
return false;
undo_history_push(&a->undo_hist, &a->field, a->tick_num);
Usz field_h = a->field.height;
Usz field_w = a->field.width;
gbuffer_copy_subrect(
a->field.buffer,
a->field.buffer,
field_h,
field_w,
field_h,
field_w,
curs_y_0,
curs_x_0,
curs_y_1,
curs_x_1,
curs_h_0,
curs_w_0);
// Erase/clear the area that was within the selection rectangle in the
// starting position, but wasn't written to during the copy. (In other words,
// this is the area that was 'left behind' when we moved the selection
// rectangle, plus any area that was along the bottom and right edge of the
// field that didn't have anything to copy to it when the selection rectangle
// extended outside of the field.)
Usz ey, eh, ex, ew;
if (curs_y_1 > curs_y_0) {
ey = curs_y_0;
eh = curs_y_1 - curs_y_0;
} else {
ey = curs_y_1 + curs_h_0;
eh = (curs_y_0 + curs_h_0) - ey;
}
if (curs_x_1 > curs_x_0) {
ex = curs_x_0;
ew = curs_x_1 - curs_x_0;
} else {
ex = curs_x_1 + curs_w_0;
ew = (curs_x_0 + curs_w_0) - ex;
}
gbuffer_fill_subrect(a->field.buffer, field_h, field_w, ey, curs_x_0, eh, curs_w_0, '.');
gbuffer_fill_subrect(a->field.buffer, field_h, field_w, curs_y_0, ex, curs_h_0, ew, '.');
a->needs_remarking = true;
return true;
}
void ged_dir_input(Ged *a, Ged_dir dir, int step_length)
{
switch (a->input_mode) {
case Ged_input_mode_normal:
case Ged_input_mode_append:
switch (dir) {
case Ged_dir_up:
ged_move_cursor_relative(a, -step_length, 0);
break;
case Ged_dir_down:
ged_move_cursor_relative(a, step_length, 0);
break;
case Ged_dir_left:
ged_move_cursor_relative(a, 0, -step_length);
break;
case Ged_dir_right:
ged_move_cursor_relative(a, 0, step_length);
break;
}
break;
case Ged_input_mode_selresize:
switch (dir) {
case Ged_dir_up:
ged_modify_selection_size(a, -step_length, 0);
break;
case Ged_dir_down:
ged_modify_selection_size(a, step_length, 0);
break;
case Ged_dir_left:
ged_modify_selection_size(a, 0, -step_length);
break;
case Ged_dir_right:
ged_modify_selection_size(a, 0, step_length);
break;
}
break;
case Ged_input_mode_slide:
switch (dir) {
case Ged_dir_up:
ged_slide_selection(a, -step_length, 0);
break;
case Ged_dir_down:
ged_slide_selection(a, step_length, 0);
break;
case Ged_dir_left:
ged_slide_selection(a, 0, -step_length);
break;
case Ged_dir_right:
ged_slide_selection(a, 0, step_length);
break;
}
break;
}
}
Usz view_to_scrolled_grid(Usz field_len, Usz visual_coord, int scroll_offset)
{
if (field_len == 0)
return 0;
if (scroll_offset < 0) {
if ((Usz)(-scroll_offset) <= visual_coord) {
visual_coord -= (Usz)(-scroll_offset);
} else {
visual_coord = 0;
}
} else {
visual_coord += (Usz)scroll_offset;
}
if (visual_coord >= field_len)
visual_coord = field_len - 1;
return visual_coord;
}
ORCA_OK_IF_UNUSED void ged_mouse_event(Ged *a, Usz vis_y, Usz vis_x, mmask_t mouse_bstate)
{
if (mouse_bstate & BUTTON1_RELEASED) {
// hard-disables tracking, but also disables further mouse stuff.
// mousemask() with our original parameters seems to work to get into the
// state we want, though.
//
// printf("\033[?1003l\n");
mousemask(ALL_MOUSE_EVENTS | REPORT_MOUSE_POSITION, NULL);
a->is_mouse_down = false;
a->is_mouse_dragging = false;
a->drag_start_y = 0;
a->drag_start_x = 0;
} else if ((mouse_bstate & BUTTON1_PRESSED) || a->is_mouse_down) {
Usz y = view_to_scrolled_grid(a->field.height, vis_y, a->grid_scroll_y);
Usz x = view_to_scrolled_grid(a->field.width, vis_x, a->grid_scroll_x);
if (!a->is_mouse_down) {
// some sequence to hopefully make terminal start reporting all further
// mouse movement events. 'REPORT_MOUSE_POSITION' alone in the mousemask
// doesn't seem to work, at least not for xterm. we need to set it only
// only when needed, otherwise some terminals will send movement updates
// when we don't want them.
printf("\033[?1003h\n");
// need to do this or double clicking can cause terminal state to get
// corrupted, since we're bypassing curses here. might cause flicker.
// wish i could figure out why report mouse position isn't working on its
// own.
fflush(stdout);
wclear(stdscr);
a->is_mouse_down = true;
a->ged_cursor.y = y;
a->ged_cursor.x = x;
a->ged_cursor.h = 1;
a->ged_cursor.w = 1;
a->is_draw_dirty = true;
} else {
if (!a->is_mouse_dragging && (y != a->ged_cursor.y || x != a->ged_cursor.x)) {
a->is_mouse_dragging = true;
a->drag_start_y = a->ged_cursor.y;
a->drag_start_x = a->ged_cursor.x;
}
if (a->is_mouse_dragging) {
Usz tcy = a->drag_start_y;
Usz tcx = a->drag_start_x;
Usz loy = y < tcy ? y : tcy;
Usz lox = x < tcx ? x : tcx;
Usz hiy = y > tcy ? y : tcy;
Usz hix = x > tcx ? x : tcx;
a->ged_cursor.y = loy;
a->ged_cursor.x = lox;
a->ged_cursor.h = hiy - loy + 1;
a->ged_cursor.w = hix - lox + 1;
a->is_draw_dirty = true;
}
}
}
#if defined(NCURSES_MOUSE_VERSION) && NCURSES_MOUSE_VERSION >= 2
else {
if (mouse_bstate & BUTTON4_PRESSED) {
a->grid_scroll_y -= 1;
a->is_draw_dirty = true;
} else if (mouse_bstate & BUTTON5_PRESSED) {
a->grid_scroll_y += 1;
a->is_draw_dirty = true;
}
}
#endif
}
void ged_adjust_rulers_relative(Ged *a, Isz delta_y, Isz delta_x)
{
Isz new_y = (Isz)a->ruler_spacing_y + delta_y;
Isz new_x = (Isz)a->ruler_spacing_x + delta_x;
if (new_y < 4)
new_y = 4;
else if (new_y > 16)
new_y = 16;
if (new_x < 4)
new_x = 4;
else if (new_x > 16)
new_x = 16;
if ((Usz)new_y == a->ruler_spacing_y && (Usz)new_x == a->ruler_spacing_x)
return;
a->ruler_spacing_y = (Usz)new_y;
a->ruler_spacing_x = (Usz)new_x;
a->is_draw_dirty = true;
}
Usz adjust_rulers_humanized(Usz ruler, Usz in, Isz delta_rulers)
{
// slightly more confusing because desired grid sizes are +1 (e.g. ruler of
// length 8 wants to snap to 25 and 33, not 24 and 32). also this math is
// sloppy.
assert(ruler > 0);
if (in == 0)
return delta_rulers > 0 ? ruler * (Usz)delta_rulers : 1;
// could overflow if inputs are big
if (delta_rulers < 0)
in += ruler - 1;
Isz n = ((Isz)in - 1) / (Isz)ruler + delta_rulers;
if (n < 0)
n = 0;
return ruler * (Usz)n + 1;
}
// Resizes by number of ruler divisions, and snaps size to closest division in
// a way a human would expect. Adds +1 to the output, so grid resulting size is
// 1 unit longer than the actual ruler length.
bool ged_resize_grid_snap_ruler(
Field *field,
Mbuf_reusable *mbr,
Usz ruler_y,
Usz ruler_x,
Isz delta_h,
Isz delta_w,
Usz tick_num,
Field *scratch_field,
Undo_history *undo_hist,
Ged_cursor *ged_cursor)
{
assert(ruler_y > 0);
assert(ruler_x > 0);
Usz field_h = field->height;
Usz field_w = field->width;
assert(field_h > 0);
assert(field_w > 0);
if (ruler_y == 0 || ruler_x == 0 || field_h == 0 || field_w == 0)
return false;
Usz new_field_h = field_h;
Usz new_field_w = field_w;
if (delta_h != 0)
new_field_h = adjust_rulers_humanized(ruler_y, field_h, delta_h);
if (delta_w != 0)
new_field_w = adjust_rulers_humanized(ruler_x, field_w, delta_w);
if (new_field_h > ORCA_Y_MAX)
new_field_h = ORCA_Y_MAX;
if (new_field_w > ORCA_X_MAX)
new_field_w = ORCA_X_MAX;
if (new_field_h == field_h && new_field_w == field_w)
return false;
ged_resize_grid(field, mbr, new_field_h, new_field_w, tick_num, scratch_field, undo_hist, ged_cursor);
return true;
}
void ged_resize_grid_relative(Ged *a, Isz delta_y, Isz delta_x)
{
ged_resize_grid_snap_ruler(
&a->field,
&a->mbuf_r,
a->ruler_spacing_y,
a->ruler_spacing_x,
delta_y,
delta_x,
a->tick_num,
&a->scratch_field,
&a->undo_hist,
&a->ged_cursor);
a->needs_remarking = true; // could check if we actually resized
a->is_draw_dirty = true;
ged_update_internal_geometry(a);
ged_make_cursor_visible(a);
}
void ged_write_character(Ged *a, char c)
{
undo_history_push(&a->undo_hist, &a->field, a->tick_num);
gbuffer_poke(a->field.buffer, a->field.height, a->field.width, a->ged_cursor.y, a->ged_cursor.x, c);
// Indicate we want the next simulation step to be run predictavely,
// so that we can use the reulsting mark buffer for UI visualization.
// This is "expensive", so it could be skipped for non-interactive
// input in situations where max throughput is necessary.
a->needs_remarking = true;
if (a->input_mode == Ged_input_mode_append) {
ged_cursor_move_relative(&a->ged_cursor, a->field.height, a->field.width, 0, 1);
}
a->is_draw_dirty = true;
}
bool ged_fill_selection_with_char(Ged *a, Glyph c)
{
Usz curs_y, curs_x, curs_h, curs_w;
if (!ged_try_selection_clipped_to_field(a, &curs_y, &curs_x, &curs_h, &curs_w))
return false;
gbuffer_fill_subrect(
a->field.buffer,
a->field.height,
a->field.width,
curs_y,
curs_x,
curs_h,
curs_w,
c);
return true;
}
bool ged_copy_selection_to_clipbard(Ged *a)
{
Usz curs_y, curs_x, curs_h, curs_w;
if (!ged_try_selection_clipped_to_field(a, &curs_y, &curs_x, &curs_h, &curs_w))
return false;
Usz field_h = a->field.height;
Usz field_w = a->field.width;
Field *cb_field = &a->clipboard_field;
field_resize_raw_if_necessary(cb_field, curs_h, curs_w);
gbuffer_copy_subrect(
a->field.buffer,
cb_field->buffer,
field_h,
field_w,
curs_h,
curs_w,
curs_y,
curs_x,
0,
0,
curs_h,
curs_w);
return true;
}
void ged_input_character(Ged *a, char c)
{
switch (a->input_mode) {
case Ged_input_mode_append:
ged_write_character(a, c);
break;
case Ged_input_mode_normal:
case Ged_input_mode_selresize:
case Ged_input_mode_slide:
if (a->ged_cursor.h <= 1 && a->ged_cursor.w <= 1) {
ged_write_character(a, c);
} else {
undo_history_push(&a->undo_hist, &a->field, a->tick_num);
ged_fill_selection_with_char(a, c);
a->needs_remarking = true;
a->is_draw_dirty = true;
}
break;
}
}
void ged_set_playing(Ged *a, bool playing)
{
if (playing == a->is_playing)
return;
if (playing) {
undo_history_push(&a->undo_hist, &a->field, a->tick_num);
a->is_playing = true;
a->clock = stm_now();
a->midi_bclock_sixths = 0;
// dumb'n'dirty, get us close to the next step time, but not quite
a->accum_secs = 60.0 / (double)a->bpm / 4.0;
if (a->midi_bclock) {
send_midi_byte(a->oosc_dev, &a->midi_mode, 0xFA); // "start"
a->accum_secs /= 6.0;
}
a->accum_secs -= 0.0001;
send_control_message(a->oosc_dev, "/orca/started");
} else {
ged_stop_all_sustained_notes(a);
a->is_playing = false;
send_control_message(a->oosc_dev, "/orca/stopped");
if (a->midi_bclock)
send_midi_byte(a->oosc_dev, &a->midi_mode, 0xFC); // "stop"
}
a->is_draw_dirty = true;
}
void ged_input_cmd(Ged *a, Ged_input_cmd ev)
{
switch (ev) {
case Ged_input_cmd_undo:
if (undo_history_count(&a->undo_hist) == 0)
break;
if (a->is_playing)
undo_history_apply(&a->undo_hist, &a->field, &a->tick_num);
else
undo_history_pop(&a->undo_hist, &a->field, &a->tick_num);
ged_cursor_confine(&a->ged_cursor, a->field.height, a->field.width);
ged_update_internal_geometry(a);
ged_make_cursor_visible(a);
a->needs_remarking = true;
a->is_draw_dirty = true;
break;
case Ged_input_cmd_toggle_append_mode:
a->input_mode = a->input_mode == Ged_input_mode_append ? Ged_input_mode_normal
: Ged_input_mode_append;
a->is_draw_dirty = true;
break;
case Ged_input_cmd_toggle_selresize_mode:
a->input_mode = a->input_mode == Ged_input_mode_selresize ? Ged_input_mode_normal
: Ged_input_mode_selresize;
a->is_draw_dirty = true;
break;
case Ged_input_cmd_toggle_slide_mode:
a->input_mode = a->input_mode == Ged_input_mode_slide ? Ged_input_mode_normal
: Ged_input_mode_slide;
a->is_draw_dirty = true;
break;
case Ged_input_cmd_step_forward:
undo_history_push(&a->undo_hist, &a->field, a->tick_num);
clear_and_run_vm(
a->field.buffer,
a->mbuf_r.buffer,
a->field.height,
a->field.width,
a->tick_num,
&a->oevent_list,
a->random_seed);
++a->tick_num;
a->activity_counter += a->oevent_list.count;
a->needs_remarking = true;
a->is_draw_dirty = true;
break;
case Ged_input_cmd_toggle_play_pause:
ged_set_playing(a, !a->is_playing);
break;
case Ged_input_cmd_toggle_show_event_list:
a->draw_event_list = !a->draw_event_list;
a->is_draw_dirty = true;
break;
case Ged_input_cmd_cut:
if (ged_copy_selection_to_clipbard(a)) {
undo_history_push(&a->undo_hist, &a->field, a->tick_num);
ged_fill_selection_with_char(a, '.');
a->needs_remarking = true;
a->is_draw_dirty = true;
}
break;
case Ged_input_cmd_copy:
ged_copy_selection_to_clipbard(a);
break;
case Ged_input_cmd_paste: {
Usz field_h = a->field.height;
Usz field_w = a->field.width;
Usz curs_y = a->ged_cursor.y;
Usz curs_x = a->ged_cursor.x;
if (curs_y >= field_h || curs_x >= field_w)
break;
Field *cb_field = &a->clipboard_field;
Usz cbfield_h = cb_field->height;
Usz cbfield_w = cb_field->width;
Usz cpy_h = cbfield_h;
Usz cpy_w = cbfield_w;
if (field_h - curs_y < cpy_h)
cpy_h = field_h - curs_y;
if (field_w - curs_x < cpy_w)
cpy_w = field_w - curs_x;
if (cpy_h == 0 || cpy_w == 0)
break;
undo_history_push(&a->undo_hist, &a->field, a->tick_num);
gbuffer_copy_subrect(
cb_field->buffer,
a->field.buffer,
cbfield_h,
cbfield_w,
field_h,
field_w,
0,
0,
curs_y,
curs_x,
cpy_h,
cpy_w);
a->ged_cursor.h = cpy_h;
a->ged_cursor.w = cpy_w;
a->needs_remarking = true;
a->is_draw_dirty = true;
break;
}
case Ged_input_cmd_escape:
if (a->input_mode != Ged_input_mode_normal) {
a->input_mode = Ged_input_mode_normal;
a->is_draw_dirty = true;
} else if (a->ged_cursor.h != 1 || a->ged_cursor.w != 1) {
a->ged_cursor.h = 1;
a->ged_cursor.w = 1;
a->is_draw_dirty = true;
}
break;
}
}