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tui_main.c
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#include "base.h"
#include "field.h"
#include "gbuffer.h"
#include "osc_out.h"
#include "oso.h"
#include "sim.h"
#include "sysmisc.h"
#include "term_util.h"
#include "vmio.h"
#include <getopt.h>
#include <locale.h>
#define SOKOL_IMPL
#include "sokol_time.h"
#undef SOKOL_IMPL
#ifdef FEAT_PORTMIDI
#include <portmidi.h>
#endif
#if NCURSES_VERSION_PATCH < 20081122
int _nc_has_mouse(void);
#define has_mouse _nc_has_mouse
#endif
#define TIME_DEBUG 0
#if TIME_DEBUG
static int spin_track_timeout = 0;
#endif
#define staticni ORCA_NOINLINE static
staticni void usage(void) { // clang-format off
fprintf(stderr,
"Usage: orca [options] [file]\n\n"
"General options:\n"
" --undo-limit <number> Set the maximum number of undo steps.\n"
" If you plan to work with large files,\n"
" set this to a low number.\n"
" Default: 100\n"
" --initial-size <nxn> When creating a new grid file, use these\n"
" starting dimensions.\n"
" --bpm <number> Set the tempo (beats per minute).\n"
" Default: 120\n"
" --seed <number> Set the seed for the random function.\n"
" Default: 1\n"
" -h or --help Print this message and exit.\n"
"\n"
"OSC/MIDI options:\n"
" --strict-timing\n"
" Attempt to reduce timing jitter of outgoing MIDI and OSC\n"
" messages. Uses more CPU time. May have no effect.\n"
"\n"
" --osc-midi-bidule <path>\n"
" Set MIDI to be sent via OSC formatted for Plogue Bidule.\n"
" The path argument is the path of the Plogue OSC MIDI device.\n"
" Example: /OSC_MIDI_0/MIDI\n"
);} // clang-format on
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':
case 'Z':
case 'z':
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;
}
typedef enum {
Ged_input_mode_normal = 0,
Ged_input_mode_append,
Ged_input_mode_selresize,
Ged_input_mode_slide,
} Ged_input_mode;
typedef struct {
Usz y, x, h, w;
} Ged_cursor;
void ged_cursor_init(Ged_cursor *tc) {
tc->x = tc->y = 0;
tc->w = tc->h = 1;
}
static 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;
}
staticni 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);
}
}
typedef struct Undo_node {
Field field;
Usz tick_num;
struct Undo_node *prev, *next;
} Undo_node;
typedef struct {
Undo_node *first, *last;
Usz count, limit;
} Undo_history;
static void undo_history_init(Undo_history *hist, Usz limit) {
*hist = (Undo_history){0};
hist->limit = limit;
}
static void undo_history_deinit(Undo_history *hist) {
Undo_node *a = hist->first;
while (a) {
Undo_node *b = a->next;
field_deinit(&a->field);
free(a);
a = b;
}
}
staticni bool undo_history_push(Undo_history *hist, Field *field,
Usz tick_num) {
if (hist->limit == 0)
return false;
Undo_node *new_node;
if (hist->count == hist->limit) {
new_node = hist->first;
if (new_node == hist->last) {
hist->first = NULL;
hist->last = NULL;
} else {
hist->first = new_node->next;
hist->first->prev = NULL;
}
} else {
new_node = malloc(sizeof(Undo_node));
if (!new_node)
return false;
++hist->count;
field_init(&new_node->field);
}
field_copy(field, &new_node->field);
new_node->tick_num = tick_num;
if (hist->last) {
hist->last->next = new_node;
new_node->prev = hist->last;
} else {
hist->first = new_node;
hist->last = new_node;
new_node->prev = NULL;
}
new_node->next = NULL;
hist->last = new_node;
return true;
}
staticni void undo_history_pop(Undo_history *hist, Field *out_field,
Usz *out_tick_num) {
Undo_node *last = hist->last;
if (!last)
return;
field_copy(&last->field, out_field);
*out_tick_num = last->tick_num;
if (hist->first == last) {
hist->first = NULL;
hist->last = NULL;
} else {
Undo_node *new_last = last->prev;
new_last->next = NULL;
hist->last = new_last;
}
field_deinit(&last->field);
free(last);
--hist->count;
}
staticni void undo_history_apply(Undo_history *hist, Field *out_field,
Usz *out_tick_num) {
Undo_node *last = hist->last;
if (!last)
return;
field_copy(&last->field, out_field);
*out_tick_num = last->tick_num;
}
static Usz undo_history_count(Undo_history *hist) { return hist->count; }
staticni 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
}
staticni 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);
}
staticni 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);
}
staticni 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);
}
}
staticni 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);
}
static 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;
}
staticni 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, 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;
}
}
}
}
staticni 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);
}
staticni 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.
staticni 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;
}
typedef enum {
Midi_mode_type_null,
Midi_mode_type_osc_bidule,
#ifdef FEAT_PORTMIDI
Midi_mode_type_portmidi,
#endif
} Midi_mode_type;
typedef struct {
Midi_mode_type type;
} Midi_mode_any;
typedef struct {
Midi_mode_type type;
char const *path;
} Midi_mode_osc_bidule;
#ifdef FEAT_PORTMIDI
typedef struct {
Midi_mode_type type;
PmDeviceID device_id;
PortMidiStream *stream;
} Midi_mode_portmidi;
// Not sure whether it's OK to call Pm_Terminate() without having a successful
// call to Pm_Initialize() -- let's just treat it with tweezers.
static bool portmidi_is_initialized = false;
#endif
typedef union {
Midi_mode_any any;
Midi_mode_osc_bidule osc_bidule;
#ifdef FEAT_PORTMIDI
Midi_mode_portmidi portmidi;
#endif
} Midi_mode;
void midi_mode_init_null(Midi_mode *mm) { mm->any.type = Midi_mode_type_null; }
void midi_mode_init_osc_bidule(Midi_mode *mm, char const *path) {
mm->osc_bidule.type = Midi_mode_type_osc_bidule;
mm->osc_bidule.path = path;
}
#ifdef FEAT_PORTMIDI
enum {
Portmidi_artificial_latency = 1,
};
struct {
U64 clock_base;
bool did_init;
} portmidi_global_data;
static PmTimestamp portmidi_timestamp_now(void) {
if (!portmidi_global_data.did_init) {
portmidi_global_data.did_init = true;
portmidi_global_data.clock_base = stm_now();
}
return (PmTimestamp)(stm_ms(stm_since(portmidi_global_data.clock_base)));
}
static PmTimestamp portmidi_timeproc(void *time_info) {
(void)time_info;
return portmidi_timestamp_now();
}
static PmError portmidi_init_if_necessary(void) {
if (portmidi_is_initialized)
return 0;
PmError e = Pm_Initialize();
if (e)
return e;
portmidi_is_initialized = true;
return 0;
}
staticni PmError midi_mode_init_portmidi(Midi_mode *mm, PmDeviceID dev_id) {
PmError e = portmidi_init_if_necessary();
if (e)
goto fail;
e = Pm_OpenOutput(&mm->portmidi.stream, dev_id, NULL, 128, portmidi_timeproc,
NULL, Portmidi_artificial_latency);
if (e)
goto fail;
mm->portmidi.type = Midi_mode_type_portmidi;
mm->portmidi.device_id = dev_id;
return pmNoError;
fail:
midi_mode_init_null(mm);
return e;
}
// Returns true on success. todo currently output only
staticni bool portmidi_find_device_id_by_name(char const *name, Usz namelen,
PmError *out_pmerror,
PmDeviceID *out_id) {
*out_pmerror = portmidi_init_if_necessary();
if (*out_pmerror)
return false;
int num = Pm_CountDevices();
for (int i = 0; i < num; ++i) {
PmDeviceInfo const *info = Pm_GetDeviceInfo(i);
if (!info || !info->output)
continue;
Usz len = strlen(info->name);
if (len != namelen)
continue;
if (strncmp(name, info->name, namelen) == 0) {
*out_id = i;
return true;
}
}
return false;
}
static bool portmidi_find_name_of_device_id(PmDeviceID id, PmError *out_pmerror,
oso **out_name) {
*out_pmerror = portmidi_init_if_necessary();
if (*out_pmerror)
return false;
int num = Pm_CountDevices();
if (id < 0 || id >= num)
return false;
PmDeviceInfo const *info = Pm_GetDeviceInfo(id);
if (!info || !info->output)
return false;
osoput(out_name, info->name);
return true;
}
#endif
staticni void midi_mode_deinit(Midi_mode *mm) {
switch (mm->any.type) {
case Midi_mode_type_null:
case Midi_mode_type_osc_bidule:
break;
#ifdef FEAT_PORTMIDI
case Midi_mode_type_portmidi:
// Because PortMidi seems to work correctly ony more platforms when using
// its timing stuff, we are using it. And because we are using it, and
// because it may be buffering events for sending 'later', we might have
// pending outgoing MIDI events. We'll need to wait until they finish being
// before calling Pm_Close, otherwise users could have problems like MIDI
// notes being stuck on. This is slow and blocking, but not much we can do
// about it right now.
//
// TODO use nansleep on platforms that support it.
for (U64 start = stm_now();
stm_ms(stm_since(start)) <= (double)Portmidi_artificial_latency;)
sleep(0);
Pm_Close(mm->portmidi.stream);
break;
#endif
}
}
typedef struct {
Field field;
Field scratch_field;
Field clipboard_field;
Mbuf_reusable mbuf_r;
Undo_history undo_hist;
Oevent_list oevent_list;
Oevent_list scratch_oevent_list;
Susnote_list susnote_list;
Ged_cursor ged_cursor;
Usz tick_num;
Usz ruler_spacing_y, ruler_spacing_x;
Ged_input_mode input_mode;
Usz bpm;
U64 clock;
double accum_secs;
double time_to_next_note_off;
Oosc_dev *oosc_dev;
Midi_mode midi_mode;
Usz activity_counter;
Usz random_seed;
Usz drag_start_y, drag_start_x;
int win_h, win_w;
int softmargin_y, softmargin_x;
int grid_h;
int grid_scroll_y, grid_scroll_x; // not sure if i like this being int
U8 midi_bclock_sixths; // 0..5, holds 6th of the quarter note step
bool needs_remarking : 1;
bool is_draw_dirty : 1;
bool is_playing : 1;
bool midi_bclock : 1;
bool draw_event_list : 1;
bool is_mouse_down : 1;
bool is_mouse_dragging : 1;
bool is_hud_visible : 1;
} Ged;
static 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;
}
static 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);
}
static bool ged_is_draw_dirty(Ged *a) {
return a->is_draw_dirty || a->needs_remarking;
}
staticni void send_midi_3bytes(Oosc_dev *oosc_dev, Midi_mode const *midi_mode,
int status, int byte1, int byte2) {
switch (midi_mode->any.type) {
case Midi_mode_type_null:
break;
case Midi_mode_type_osc_bidule: {
if (!oosc_dev)
break;
oosc_send_int32s(oosc_dev, midi_mode->osc_bidule.path,
(int[]){status, byte1, byte2}, 3);
break;
}
#ifdef FEAT_PORTMIDI
case Midi_mode_type_portmidi: {
// timestamp is totally fake, to prevent problems with some MIDI systems
// getting angry if there's no timestamping info.
//
// Eventually, we will want to create real timestamps based on a real orca
// clock, instead of ad-hoc at the last moment like this. When we do that,
// we'll need to thread the timestamping/timing info through the function
// calls, instead of creating it at the last moment here. (This timestamp
// is actually 'useless', because it doesn't convey any additional
// information. But if we don't provide it, at least to PortMidi, some
// people's MIDI setups may malfunction and have terrible timing problems.)
PmTimestamp pm_timestamp = portmidi_timestamp_now();
PmError pme = Pm_WriteShort(midi_mode->portmidi.stream, pm_timestamp,
Pm_Message(status, byte1, byte2));
(void)pme;
break;
}
#endif
}
}