source: mainline/uspace/app/terminal/terminal.c@ 4c2339b

Last change on this file since 4c2339b was 4c2339b, checked in by Jiri Svoboda <jiri@…>, 10 months ago

Bright should not be applied to background color.
  • Property mode set to 100644
File size: 29.2 KB
Line 
1/*
2 * Copyright (c) 2024 Jiri Svoboda
3 * Copyright (c) 2012 Petr Koupy
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * - The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/** @addtogroup terminal
31 * @{
32 */
33/**
34 * @file Terminal application
35 */
36
37#include <adt/list.h>
38#include <adt/prodcons.h>
39#include <as.h>
40#include <errno.h>
41#include <fbfont/font-8x16.h>
42#include <fibril.h>
43#include <gfx/bitmap.h>
44#include <gfx/context.h>
45#include <gfx/render.h>
46#include <io/con_srv.h>
47#include <io/concaps.h>
48#include <io/console.h>
49#include <io/pixelmap.h>
50#include <macros.h>
51#include <stdarg.h>
52#include <stdio.h>
53#include <stdlib.h>
54#include <str_error.h>
55#include <str.h>
56#include <task.h>
57#include <ui/resource.h>
58#include <ui/ui.h>
59#include <ui/wdecor.h>
60#include <ui/window.h>
61
62#include "terminal.h"
63
64#define NAME "terminal"
65#define NAMESPACE "terminal"
66
67#define LOCFS_MOUNT_POINT "/loc"
68
69#define APP_GETTERM "/app/getterm"
70
71#define TERM_CAPS \
72 (CONSOLE_CAP_STYLE | CONSOLE_CAP_INDEXED | CONSOLE_CAP_RGB)
73
74#define SCROLLBACK_MAX_LINES 1000
75#define MIN_WINDOW_COLS 8
76#define MIN_WINDOW_ROWS 4
77
78static LIST_INITIALIZE(terms);
79
80#define COLOR_BRIGHT 8
81
82static const pixel_t _basic_colors[16] = {
83 [COLOR_BLACK] = PIXEL(255, 0, 0, 0),
84 [COLOR_RED] = PIXEL(255, 170, 0, 0),
85 [COLOR_GREEN] = PIXEL(255, 0, 170, 0),
86 [COLOR_YELLOW] = PIXEL(255, 170, 85, 0),
87 [COLOR_BLUE] = PIXEL(255, 0, 0, 170),
88 [COLOR_MAGENTA] = PIXEL(255, 170, 0, 170),
89 [COLOR_CYAN] = PIXEL(255, 0, 170, 170),
90 [COLOR_WHITE] = PIXEL(255, 170, 170, 170),
91
92 [COLOR_BLACK | COLOR_BRIGHT] = PIXEL(255, 85, 85, 85),
93 [COLOR_RED | COLOR_BRIGHT] = PIXEL(255, 255, 85, 85),
94 [COLOR_GREEN | COLOR_BRIGHT] = PIXEL(255, 85, 255, 85),
95 [COLOR_YELLOW | COLOR_BRIGHT] = PIXEL(255, 255, 255, 85),
96 [COLOR_BLUE | COLOR_BRIGHT] = PIXEL(255, 85, 85, 255),
97 [COLOR_MAGENTA | COLOR_BRIGHT] = PIXEL(255, 255, 85, 255),
98 [COLOR_CYAN | COLOR_BRIGHT] = PIXEL(255, 85, 255, 255),
99 [COLOR_WHITE | COLOR_BRIGHT] = PIXEL(255, 255, 255, 255),
100};
101
102static errno_t term_open(con_srvs_t *, con_srv_t *);
103static errno_t term_close(con_srv_t *);
104static errno_t term_read(con_srv_t *, void *, size_t, size_t *);
105static errno_t term_write(con_srv_t *, void *, size_t, size_t *);
106static void term_sync(con_srv_t *);
107static void term_clear(con_srv_t *);
108static void term_set_pos(con_srv_t *, sysarg_t col, sysarg_t row);
109static errno_t term_get_pos(con_srv_t *, sysarg_t *, sysarg_t *);
110static errno_t term_get_size(con_srv_t *, sysarg_t *, sysarg_t *);
111static errno_t term_get_color_cap(con_srv_t *, console_caps_t *);
112static void term_set_style(con_srv_t *, console_style_t);
113static void term_set_color(con_srv_t *, console_color_t, console_color_t,
114 console_color_attr_t);
115static void term_set_rgb_color(con_srv_t *, pixel_t, pixel_t);
116static void term_set_cursor_visibility(con_srv_t *, bool);
117static errno_t term_set_caption(con_srv_t *, const char *);
118static errno_t term_get_event(con_srv_t *, cons_event_t *);
119static errno_t term_map(con_srv_t *, sysarg_t, sysarg_t, charfield_t **);
120static void term_unmap(con_srv_t *);
121static void term_buf_update(con_srv_t *, sysarg_t, sysarg_t, sysarg_t,
122 sysarg_t);
123
124static con_ops_t con_ops = {
125 .open = term_open,
126 .close = term_close,
127 .read = term_read,
128 .write = term_write,
129 .sync = term_sync,
130 .clear = term_clear,
131 .set_pos = term_set_pos,
132 .get_pos = term_get_pos,
133 .get_size = term_get_size,
134 .get_color_cap = term_get_color_cap,
135 .set_style = term_set_style,
136 .set_color = term_set_color,
137 .set_rgb_color = term_set_rgb_color,
138 .set_cursor_visibility = term_set_cursor_visibility,
139 .set_caption = term_set_caption,
140 .get_event = term_get_event,
141 .map = term_map,
142 .unmap = term_unmap,
143 .update = term_buf_update
144};
145
146static void terminal_close_event(ui_window_t *, void *);
147static void terminal_focus_event(ui_window_t *, void *, unsigned);
148static void terminal_resize_event(ui_window_t *, void *);
149static void terminal_kbd_event(ui_window_t *, void *, kbd_event_t *);
150static void terminal_pos_event(ui_window_t *, void *, pos_event_t *);
151static void terminal_unfocus_event(ui_window_t *, void *, unsigned);
152static void terminal_maximize_event(ui_window_t *, void *);
153static void terminal_unmaximize_event(ui_window_t *, void *);
154
155static ui_window_cb_t terminal_window_cb = {
156 .close = terminal_close_event,
157 .focus = terminal_focus_event,
158 .resize = terminal_resize_event,
159 .kbd = terminal_kbd_event,
160 .pos = terminal_pos_event,
161 .unfocus = terminal_unfocus_event,
162 .maximize = terminal_maximize_event,
163 .unmaximize = terminal_unmaximize_event,
164};
165
166static errno_t terminal_wait_fibril(void *);
167
168static terminal_t *srv_to_terminal(con_srv_t *srv)
169{
170 return srv->srvs->sarg;
171}
172
173static errno_t getterm(task_wait_t *wait, const char *svc, const char *app)
174{
175 return task_spawnl(NULL, wait, APP_GETTERM, APP_GETTERM, svc,
176 LOCFS_MOUNT_POINT, "--msg", "--wait", "--", app, NULL);
177}
178
179static pixel_t termui_color_to_pixel(termui_color_t c)
180{
181 uint8_t r, g, b;
182 termui_color_to_rgb(c, &r, &g, &b);
183 return PIXEL(255, r, g, b);
184}
185
186static termui_color_t termui_color_from_pixel(pixel_t pixel)
187{
188 return termui_color_from_rgb(RED(pixel), GREEN(pixel), BLUE(pixel));
189}
190
191static termui_cell_t charfield_to_termui_cell(terminal_t *term, const charfield_t *cf)
192{
193 termui_cell_t cell = { };
194
195 cell.glyph_idx = fb_font_glyph(cf->ch, NULL);
196
197 switch (cf->attrs.type) {
198 case CHAR_ATTR_STYLE:
199 switch (cf->attrs.val.style) {
200 case STYLE_NORMAL:
201 cell.bgcolor = term->default_bgcolor;
202 cell.fgcolor = term->default_fgcolor;
203 break;
204 case STYLE_EMPHASIS:
205 cell.bgcolor = term->emphasis_bgcolor;
206 cell.fgcolor = term->emphasis_fgcolor;
207 break;
208 case STYLE_INVERTED:
209 cell.bgcolor = term->default_bgcolor;
210 cell.fgcolor = term->default_fgcolor;
211 cell.inverted = 1;
212 break;
213 case STYLE_SELECTED:
214 cell.bgcolor = term->selection_bgcolor;
215 cell.fgcolor = term->selection_fgcolor;
216 break;
217 }
218 break;
219
220 case CHAR_ATTR_INDEX:
221 char_attr_index_t index = cf->attrs.val.index;
222
223 int bright = (index.attr & CATTR_BRIGHT) ? COLOR_BRIGHT : 0;
224 pixel_t bgcolor = _basic_colors[index.bgcolor];
225 pixel_t fgcolor = _basic_colors[index.fgcolor | bright];
226 cell.bgcolor = termui_color_from_pixel(bgcolor);
227 cell.fgcolor = termui_color_from_pixel(fgcolor);
228
229 if (index.attr & CATTR_BLINK)
230 cell.blink = 1;
231
232 break;
233
234 case CHAR_ATTR_RGB:
235 cell.bgcolor = termui_color_from_pixel(cf->attrs.val.rgb.bgcolor);
236 cell.fgcolor = termui_color_from_pixel(cf->attrs.val.rgb.fgcolor);
237 break;
238 }
239
240 return cell;
241}
242
243static void term_update_region(terminal_t *term, sysarg_t x, sysarg_t y,
244 sysarg_t w, sysarg_t h)
245{
246 gfx_rect_t rect;
247 gfx_rect_t nupdate;
248
249 rect.p0.x = x;
250 rect.p0.y = y;
251 rect.p1.x = x + w;
252 rect.p1.y = y + h;
253
254 gfx_rect_envelope(&term->update, &rect, &nupdate);
255 term->update = nupdate;
256}
257
258static void term_draw_cell(terminal_t *term, pixelmap_t *pixelmap, int col, int row, const termui_cell_t *cell)
259{
260 termui_color_t bg = cell->bgcolor;
261 if (bg == TERMUI_COLOR_DEFAULT)
262 bg = term->default_bgcolor;
263
264 termui_color_t fg = cell->fgcolor;
265 if (fg == TERMUI_COLOR_DEFAULT)
266 fg = term->default_fgcolor;
267
268 pixel_t bgcolor = termui_color_to_pixel(bg);
269 pixel_t fgcolor = termui_color_to_pixel(fg);
270
271 int bx = col * FONT_WIDTH;
272 int by = row * FONT_SCANLINES;
273
274 // TODO: support bold/italic/underline/strike/blink styling
275
276 if (cell->inverted ^ cell->cursor) {
277 pixel_t tmp = bgcolor;
278 bgcolor = fgcolor;
279 fgcolor = tmp;
280 }
281
282 uint32_t glyph = cell->glyph_idx;
283 assert(glyph < FONT_GLYPHS);
284
285 if (glyph == 0)
286 glyph = fb_font_glyph(U' ', NULL);
287
288 for (unsigned int y = 0; y < FONT_SCANLINES; y++) {
289 pixel_t *dst = pixelmap_pixel_at(pixelmap, bx, by + y);
290 pixel_t *dst_max = pixelmap_pixel_at(pixelmap, bx + FONT_WIDTH - 1, by + y);
291 if (!dst || !dst_max)
292 continue;
293 int count = FONT_WIDTH;
294 while (count-- != 0) {
295 *dst++ = (fb_font[glyph][y] & (1 << count)) ? fgcolor : bgcolor;
296 }
297 }
298
299 term_update_region(term, bx, by, FONT_WIDTH, FONT_SCANLINES);
300}
301
302static void term_render(terminal_t *term)
303{
304 gfx_coord2_t pos = { .x = 4, .y = 26 };
305 (void) gfx_bitmap_render(term->bmp, &term->update, &pos);
306
307 term->update.p0.x = 0;
308 term->update.p0.y = 0;
309 term->update.p1.x = 0;
310 term->update.p1.y = 0;
311}
312
313static void termui_refresh_cb(void *userdata)
314{
315 terminal_t *term = userdata;
316
317 termui_force_viewport_update(term->termui, 0, termui_get_rows(term->termui));
318}
319
320static void termui_scroll_cb(void *userdata, int delta)
321{
322 (void) delta;
323
324 // Until we have support for hardware accelerated scrolling, just redraw everything.
325 termui_refresh_cb(userdata);
326}
327
328static pixelmap_t term_get_pixelmap(terminal_t *term)
329{
330 pixelmap_t pixelmap = { };
331 gfx_bitmap_alloc_t alloc;
332
333 errno_t rc = gfx_bitmap_get_alloc(term->bmp, &alloc);
334 if (rc != EOK)
335 return pixelmap;
336
337 pixelmap.width = term->w;
338 pixelmap.height = term->h;
339 pixelmap.data = alloc.pixels;
340 return pixelmap;
341}
342
343static void term_clear_bitmap(terminal_t *term, pixel_t color)
344{
345 pixelmap_t pixelmap = term_get_pixelmap(term);
346 if (pixelmap.data == NULL)
347 return;
348
349 sysarg_t pixels = pixelmap.height * pixelmap.width;
350 for (sysarg_t i = 0; i < pixels; i++)
351 pixelmap.data[i] = color;
352
353 term_update_region(term, 0, 0, pixelmap.width, pixelmap.height);
354}
355
356static void termui_update_cb(void *userdata, int col, int row, const termui_cell_t *cell, int len)
357{
358 terminal_t *term = userdata;
359
360 pixelmap_t pixelmap = term_get_pixelmap(term);
361 if (pixelmap.data == NULL)
362 return;
363
364 for (int i = 0; i < len; i++)
365 term_draw_cell(term, &pixelmap, col + i, row, &cell[i]);
366}
367
368static errno_t term_open(con_srvs_t *srvs, con_srv_t *srv)
369{
370 return EOK;
371}
372
373static errno_t term_close(con_srv_t *srv)
374{
375 return EOK;
376}
377
378static errno_t term_read(con_srv_t *srv, void *buf, size_t size, size_t *nread)
379{
380 terminal_t *term = srv_to_terminal(srv);
381 uint8_t *bbuf = buf;
382 size_t pos = 0;
383
384 /*
385 * Read input from keyboard and copy it to the buffer.
386 * We need to handle situation when wchar is split by 2 following
387 * reads.
388 */
389 while (pos < size) {
390 /* Copy to the buffer remaining characters. */
391 while ((pos < size) && (term->char_remains_len > 0)) {
392 bbuf[pos] = term->char_remains[0];
393 pos++;
394
395 /* Unshift the array. */
396 for (size_t i = 1; i < term->char_remains_len; i++)
397 term->char_remains[i - 1] = term->char_remains[i];
398
399 term->char_remains_len--;
400 }
401
402 /* Still not enough? Then get another key from the queue. */
403 if (pos < size) {
404 link_t *link = prodcons_consume(&term->input_pc);
405 cons_event_t *event = list_get_instance(link, cons_event_t, link);
406
407 /* Accept key presses of printable chars only. */
408 if (event->type == CEV_KEY && event->ev.key.type == KEY_PRESS &&
409 event->ev.key.c != 0) {
410 char32_t tmp[2] = {
411 event->ev.key.c,
412 0
413 };
414
415 wstr_to_str(term->char_remains, UTF8_CHAR_BUFFER_SIZE, tmp);
416 term->char_remains_len = str_size(term->char_remains);
417 }
418
419 free(event);
420 }
421 }
422
423 *nread = size;
424 return EOK;
425}
426
427static void term_write_char(terminal_t *term, wchar_t ch)
428{
429 switch (ch) {
430 case L'\n':
431 termui_put_crlf(term->termui);
432 break;
433 case L'\r':
434 termui_put_cr(term->termui);
435 break;
436 case L'\t':
437 termui_put_tab(term->termui);
438 break;
439 case L'\b':
440 termui_put_backspace(term->termui);
441 break;
442 default:
443 // TODO: For some languages, we might need support for combining
444 // characters. Currently, we assume every unicode code point is
445 // an individual printed character, which is not always the case.
446 termui_put_glyph(term->termui, fb_font_glyph(ch, NULL), 1);
447 break;
448 }
449}
450
451static errno_t term_write(con_srv_t *srv, void *data, size_t size, size_t *nwritten)
452{
453 terminal_t *term = srv_to_terminal(srv);
454
455 fibril_mutex_lock(&term->mtx);
456
457 size_t off = 0;
458 while (off < size)
459 term_write_char(term, str_decode(data, &off, size));
460
461 fibril_mutex_unlock(&term->mtx);
462
463 term_render(term);
464 gfx_update(term->gc);
465 *nwritten = size;
466
467 return EOK;
468}
469
470static void term_sync(con_srv_t *srv)
471{
472 terminal_t *term = srv_to_terminal(srv);
473
474 term_render(term);
475 gfx_update(term->gc);
476}
477
478static void term_clear(con_srv_t *srv)
479{
480 terminal_t *term = srv_to_terminal(srv);
481
482 fibril_mutex_lock(&term->mtx);
483 termui_clear_screen(term->termui);
484 fibril_mutex_unlock(&term->mtx);
485
486 term_render(term);
487 gfx_update(term->gc);
488}
489
490static void term_set_pos(con_srv_t *srv, sysarg_t col, sysarg_t row)
491{
492 terminal_t *term = srv_to_terminal(srv);
493
494 fibril_mutex_lock(&term->mtx);
495 termui_set_pos(term->termui, col, row);
496 fibril_mutex_unlock(&term->mtx);
497
498 term_render(term);
499 gfx_update(term->gc);
500}
501
502static errno_t term_get_pos(con_srv_t *srv, sysarg_t *col, sysarg_t *row)
503{
504 terminal_t *term = srv_to_terminal(srv);
505
506 fibril_mutex_lock(&term->mtx);
507 int irow, icol;
508 termui_get_pos(term->termui, &icol, &irow);
509 fibril_mutex_unlock(&term->mtx);
510
511 *col = icol;
512 *row = irow;
513
514 return EOK;
515}
516
517static errno_t term_get_size(con_srv_t *srv, sysarg_t *cols, sysarg_t *rows)
518{
519 terminal_t *term = srv_to_terminal(srv);
520
521 fibril_mutex_lock(&term->mtx);
522 *cols = termui_get_cols(term->termui);
523 *rows = termui_get_rows(term->termui);
524 fibril_mutex_unlock(&term->mtx);
525
526 return EOK;
527}
528
529static errno_t term_get_color_cap(con_srv_t *srv, console_caps_t *caps)
530{
531 (void) srv;
532 *caps = TERM_CAPS;
533
534 return EOK;
535}
536
537static void term_set_style(con_srv_t *srv, console_style_t style)
538{
539 terminal_t *term = srv_to_terminal(srv);
540
541 termui_cell_t cellstyle = { };
542
543 switch (style) {
544 case STYLE_NORMAL:
545 cellstyle.bgcolor = term->default_bgcolor;
546 cellstyle.fgcolor = term->default_fgcolor;
547 break;
548 case STYLE_EMPHASIS:
549 cellstyle.bgcolor = term->emphasis_bgcolor;
550 cellstyle.fgcolor = term->emphasis_fgcolor;
551 break;
552 case STYLE_INVERTED:
553 cellstyle.bgcolor = term->default_bgcolor;
554 cellstyle.fgcolor = term->default_fgcolor;
555 cellstyle.inverted = 1;
556 break;
557 case STYLE_SELECTED:
558 cellstyle.bgcolor = term->selection_bgcolor;
559 cellstyle.fgcolor = term->selection_fgcolor;
560 break;
561 }
562
563 fibril_mutex_lock(&term->mtx);
564 termui_set_style(term->termui, cellstyle);
565 fibril_mutex_unlock(&term->mtx);
566}
567
568static void term_set_color(con_srv_t *srv, console_color_t bgcolor,
569 console_color_t fgcolor, console_color_attr_t attr)
570{
571 terminal_t *term = srv_to_terminal(srv);
572
573 int bright = (attr & CATTR_BRIGHT) ? COLOR_BRIGHT : 0;
574
575 termui_cell_t cellstyle = { };
576 cellstyle.bgcolor = termui_color_from_pixel(_basic_colors[bgcolor]);
577 cellstyle.fgcolor = termui_color_from_pixel(_basic_colors[fgcolor | bright]);
578
579 if (attr & CATTR_BLINK)
580 cellstyle.blink = 1;
581
582 fibril_mutex_lock(&term->mtx);
583 termui_set_style(term->termui, cellstyle);
584 fibril_mutex_unlock(&term->mtx);
585}
586
587static void term_set_rgb_color(con_srv_t *srv, pixel_t bgcolor,
588 pixel_t fgcolor)
589{
590 terminal_t *term = srv_to_terminal(srv);
591 termui_cell_t cellstyle = {
592 .bgcolor = termui_color_from_pixel(bgcolor),
593 .fgcolor = termui_color_from_pixel(fgcolor),
594 };
595
596 fibril_mutex_lock(&term->mtx);
597 termui_set_style(term->termui, cellstyle);
598 fibril_mutex_unlock(&term->mtx);
599}
600
601static void term_set_cursor_visibility(con_srv_t *srv, bool visible)
602{
603 terminal_t *term = srv_to_terminal(srv);
604
605 fibril_mutex_lock(&term->mtx);
606 termui_set_cursor_visibility(term->termui, visible);
607 fibril_mutex_unlock(&term->mtx);
608
609 term_render(term);
610 gfx_update(term->gc);
611}
612
613static errno_t term_set_caption(con_srv_t *srv, const char *caption)
614{
615 terminal_t *term = srv_to_terminal(srv);
616 const char *cap;
617
618 fibril_mutex_lock(&term->mtx);
619
620 if (str_size(caption) > 0)
621 cap = caption;
622 else
623 cap = "Terminal";
624
625 ui_window_set_caption(term->window, cap);
626 fibril_mutex_unlock(&term->mtx);
627
628 term_render(term);
629 gfx_update(term->gc);
630 return EOK;
631}
632
633static errno_t term_get_event(con_srv_t *srv, cons_event_t *event)
634{
635 terminal_t *term = srv_to_terminal(srv);
636 link_t *link = prodcons_consume(&term->input_pc);
637 cons_event_t *ev = list_get_instance(link, cons_event_t, link);
638
639 *event = *ev;
640 free(ev);
641 return EOK;
642}
643
644/** Create shared buffer for efficient rendering.
645 *
646 * @param srv Console server
647 * @param cols Number of columns in buffer
648 * @param rows Number of rows in buffer
649 * @param rbuf Place to store pointer to new sharable buffer
650 *
651 * @return EOK on sucess or an error code
652 */
653static errno_t term_map(con_srv_t *srv, sysarg_t cols, sysarg_t rows,
654 charfield_t **rbuf)
655{
656 terminal_t *term = srv_to_terminal(srv);
657 void *buf;
658
659 fibril_mutex_lock(&term->mtx);
660
661 if (term->ubuf != NULL) {
662 fibril_mutex_unlock(&term->mtx);
663 return EBUSY;
664 }
665
666 buf = as_area_create(AS_AREA_ANY, cols * rows * sizeof(charfield_t),
667 AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE, AS_AREA_UNPAGED);
668 if (buf == AS_MAP_FAILED) {
669 fibril_mutex_unlock(&term->mtx);
670 return ENOMEM;
671 }
672
673 term->ucols = cols;
674 term->urows = rows;
675 term->ubuf = buf;
676
677 /* Scroll back to active screen. */
678 termui_history_scroll(term->termui, INT_MAX);
679
680 fibril_mutex_unlock(&term->mtx);
681
682 *rbuf = buf;
683 return EOK;
684}
685
686/** Delete shared buffer.
687 *
688 * @param srv Console server
689 */
690static void term_unmap(con_srv_t *srv)
691{
692 terminal_t *term = srv_to_terminal(srv);
693 void *buf;
694
695 fibril_mutex_lock(&term->mtx);
696
697 buf = term->ubuf;
698 term->ubuf = NULL;
699
700 termui_wipe_screen(term->termui, 0);
701
702 fibril_mutex_unlock(&term->mtx);
703
704 /* Update terminal */
705 term_render(term);
706 gfx_update(term->gc);
707
708 if (buf != NULL)
709 as_area_destroy(buf);
710}
711
712/** Update area of terminal from shared buffer.
713 *
714 * @param srv Console server
715 * @param c0 Column coordinate of top-left corner (inclusive)
716 * @param r0 Row coordinate of top-left corner (inclusive)
717 * @param c1 Column coordinate of bottom-right corner (exclusive)
718 * @param r1 Row coordinate of bottom-right corner (exclusive)
719 */
720static void term_buf_update(con_srv_t *srv, sysarg_t c0, sysarg_t r0,
721 sysarg_t c1, sysarg_t r1)
722{
723 terminal_t *term = srv_to_terminal(srv);
724
725 fibril_mutex_lock(&term->mtx);
726
727 if (term->ubuf == NULL) {
728 fibril_mutex_unlock(&term->mtx);
729 return;
730 }
731
732 /* Make sure we have meaningful coordinates, within bounds */
733 c1 = min(c1, term->ucols);
734 c1 = min(c1, (sysarg_t) termui_get_cols(term->termui));
735 r1 = min(r1, term->urows);
736 r1 = min(r1, (sysarg_t) termui_get_rows(term->termui));
737
738 if (c0 >= c1 || r0 >= r1) {
739 fibril_mutex_unlock(&term->mtx);
740 return;
741 }
742
743 /* Update front buffer from user buffer */
744
745 for (sysarg_t row = r0; row < r1; row++) {
746 termui_cell_t *cells = termui_get_active_row(term->termui, row);
747
748 for (sysarg_t col = c0; col < c1; col++) {
749 cells[col] = charfield_to_termui_cell(term, &term->ubuf[row * term->ucols + col]);
750 }
751
752 termui_update_cb(term, c0, row, &cells[c0], c1 - c0);
753 }
754
755 fibril_mutex_unlock(&term->mtx);
756
757 /* Update terminal */
758 term_render(term);
759 gfx_update(term->gc);
760}
761
762static errno_t terminal_window_resize(terminal_t *term)
763{
764 gfx_rect_t rect;
765 ui_window_get_app_rect(term->window, &rect);
766
767 int width = rect.p1.x - rect.p0.x;
768 int height = rect.p1.y - rect.p0.y;
769
770 if (!term->gc)
771 term->gc = ui_window_get_gc(term->window);
772 else
773 assert(term->gc == ui_window_get_gc(term->window));
774
775 if (!term->ui_res)
776 term->ui_res = ui_window_get_res(term->window);
777 else
778 assert(term->ui_res == ui_window_get_res(term->window));
779
780 gfx_bitmap_t *new_bmp;
781 gfx_bitmap_params_t params;
782 gfx_bitmap_params_init(&params);
783 params.rect.p0.x = 0;
784 params.rect.p0.y = 0;
785 params.rect.p1.x = width;
786 params.rect.p1.y = height;
787
788 errno_t rc = gfx_bitmap_create(term->gc, &params, NULL, &new_bmp);
789 if (rc != EOK) {
790 fprintf(stderr, "Error allocating new screen bitmap: %s\n", str_error(rc));
791 return rc;
792 }
793
794 if (term->bmp) {
795 rc = gfx_bitmap_destroy(term->bmp);
796 if (rc != EOK)
797 fprintf(stderr, "Error deallocating old screen bitmap: %s\n", str_error(rc));
798 }
799
800 term->bmp = new_bmp;
801 term->w = width;
802 term->h = height;
803
804 term_clear_bitmap(term, termui_color_to_pixel(term->default_bgcolor));
805
806 return EOK;
807}
808
809void terminal_destroy(terminal_t *term)
810{
811 list_remove(&term->link);
812
813 termui_destroy(term->termui);
814
815 if (term->ubuf)
816 as_area_destroy(term->ubuf);
817
818 free(term);
819}
820
821static void terminal_queue_cons_event(terminal_t *term, cons_event_t *ev)
822{
823 /* Got key press/release event */
824 cons_event_t *event =
825 (cons_event_t *) malloc(sizeof(cons_event_t));
826 if (event == NULL)
827 return;
828
829 *event = *ev;
830 link_initialize(&event->link);
831
832 prodcons_produce(&term->input_pc, &event->link);
833}
834
835/** Handle window close event. */
836static void terminal_close_event(ui_window_t *window, void *arg)
837{
838 terminal_t *term = (terminal_t *) arg;
839
840 ui_quit(term->ui);
841}
842
843/** Handle window focus event. */
844static void terminal_focus_event(ui_window_t *window, void *arg,
845 unsigned nfocus)
846{
847 terminal_t *term = (terminal_t *) arg;
848
849 (void)nfocus;
850 term->is_focused = true;
851 term_render(term);
852 gfx_update(term->gc);
853}
854
855static void terminal_resize_handler(ui_window_t *window, void *arg)
856{
857 terminal_t *term = (terminal_t *) arg;
858
859 fibril_mutex_lock(&term->mtx);
860
861 errno_t rc = terminal_window_resize(term);
862 if (rc == EOK) {
863 (void) termui_resize(term->termui, term->w / FONT_WIDTH, term->h / FONT_SCANLINES, SCROLLBACK_MAX_LINES);
864 termui_refresh_cb(term);
865 term_render(term);
866 gfx_update(term->gc);
867
868 cons_event_t event = { .type = CEV_RESIZE };
869 terminal_queue_cons_event(term, &event);
870 }
871
872 fibril_mutex_unlock(&term->mtx);
873}
874
875static void terminal_resize_event(ui_window_t *window, void *arg)
876{
877 ui_window_def_resize(window);
878 terminal_resize_handler(window, arg);
879}
880
881static void terminal_maximize_event(ui_window_t *window, void *arg)
882{
883 ui_window_def_maximize(window);
884 terminal_resize_handler(window, arg);
885}
886
887static void terminal_unmaximize_event(ui_window_t *window, void *arg)
888{
889 ui_window_def_unmaximize(window);
890 terminal_resize_handler(window, arg);
891}
892
893/** Handle window keyboard event */
894static void terminal_kbd_event(ui_window_t *window, void *arg,
895 kbd_event_t *kbd_event)
896{
897 terminal_t *term = (terminal_t *) arg;
898 cons_event_t event;
899
900 event.type = CEV_KEY;
901 event.ev.key = *kbd_event;
902
903 const int PAGE_ROWS = (termui_get_rows(term->termui) * 2) / 3;
904
905 fibril_mutex_lock(&term->mtx);
906
907 if (!term->ubuf && kbd_event->type == KEY_PRESS &&
908 (kbd_event->key == KC_PAGE_UP || kbd_event->key == KC_PAGE_DOWN)) {
909
910 termui_history_scroll(term->termui,
911 (kbd_event->key == KC_PAGE_UP) ? -PAGE_ROWS : PAGE_ROWS);
912
913 term_render(term);
914 gfx_update(term->gc);
915 } else {
916 terminal_queue_cons_event(term, &event);
917 }
918
919 fibril_mutex_unlock(&term->mtx);
920}
921
922/** Handle window position event */
923static void terminal_pos_event(ui_window_t *window, void *arg, pos_event_t *event)
924{
925 cons_event_t cevent;
926 terminal_t *term = (terminal_t *) arg;
927
928 switch (event->type) {
929 case POS_UPDATE:
930 return;
931
932 case POS_PRESS:
933 case POS_RELEASE:
934 case POS_DCLICK:
935 }
936
937 /* Ignore mouse events when we're in scrollback mode. */
938 if (termui_scrollback_is_active(term->termui))
939 return;
940
941 sysarg_t sx = -term->off.x;
942 sysarg_t sy = -term->off.y;
943
944 if (event->hpos < sx || event->vpos < sy)
945 return;
946
947 cevent.type = CEV_POS;
948 cevent.ev.pos.type = event->type;
949 cevent.ev.pos.pos_id = event->pos_id;
950 cevent.ev.pos.btn_num = event->btn_num;
951
952 cevent.ev.pos.hpos = (event->hpos - sx) / FONT_WIDTH;
953 cevent.ev.pos.vpos = (event->vpos - sy) / FONT_SCANLINES;
954
955 /* Filter out events outside the terminal area. */
956 int cols = termui_get_cols(term->termui);
957 int rows = termui_get_rows(term->termui);
958
959 if (cevent.ev.pos.hpos < (sysarg_t) cols && cevent.ev.pos.vpos < (sysarg_t) rows)
960 terminal_queue_cons_event(term, &cevent);
961}
962
963/** Handle window unfocus event. */
964static void terminal_unfocus_event(ui_window_t *window, void *arg,
965 unsigned nfocus)
966{
967 terminal_t *term = (terminal_t *) arg;
968
969 if (nfocus == 0) {
970 term->is_focused = false;
971 term_render(term);
972 gfx_update(term->gc);
973 }
974}
975
976static void term_connection(ipc_call_t *icall, void *arg)
977{
978 terminal_t *term = NULL;
979
980 list_foreach(terms, link, terminal_t, cur) {
981 if (cur->dsid == (service_id_t) ipc_get_arg2(icall)) {
982 term = cur;
983 break;
984 }
985 }
986
987 if (term == NULL) {
988 async_answer_0(icall, ENOENT);
989 return;
990 }
991
992 if (!atomic_flag_test_and_set(&term->refcnt))
993 termui_set_cursor_visibility(term->termui, true);
994
995 con_conn(icall, &term->srvs);
996}
997
998static errno_t term_init_window(terminal_t *term, const char *display_spec,
999 gfx_coord_t width, gfx_coord_t height,
1000 gfx_coord_t min_width, gfx_coord_t min_height,
1001 terminal_flags_t flags)
1002{
1003 gfx_rect_t min_rect = { { 0, 0 }, { min_width, min_height } };
1004
1005 ui_wnd_params_t wparams;
1006 ui_wnd_params_init(&wparams);
1007 wparams.caption = "Terminal";
1008 wparams.style |= ui_wds_maximize_btn | ui_wds_resizable;
1009 if ((flags & tf_topleft) != 0)
1010 wparams.placement = ui_wnd_place_top_left;
1011
1012 errno_t rc = ui_create(display_spec, &term->ui);
1013 if (rc != EOK) {
1014 printf("Error creating UI on %s.\n", display_spec);
1015 return rc;
1016 }
1017
1018 /* Compute wrect such that application area corresponds to rect. */
1019 gfx_rect_t wrect;
1020 ui_wdecor_rect_from_app(term->ui, wparams.style, &min_rect, &wrect);
1021 gfx_rect_rtranslate(&wrect.p0, &wrect, &wparams.rect);
1022
1023 rc = ui_window_create(term->ui, &wparams, &term->window);
1024 if (rc != EOK)
1025 return rc;
1026
1027 gfx_rect_t rect = { { 0, 0 }, { width, height } };
1028 ui_wdecor_rect_from_app(term->ui, wparams.style, &rect, &rect);
1029 term->off = rect.p0;
1030 gfx_rect_rtranslate(&term->off, &rect, &wrect);
1031
1032 ui_window_resize(term->window, &wrect);
1033 ui_window_set_cb(term->window, &terminal_window_cb, (void *) term);
1034
1035 return terminal_window_resize(term);
1036}
1037
1038errno_t terminal_create(const char *display_spec, sysarg_t width,
1039 sysarg_t height, terminal_flags_t flags, const char *command,
1040 terminal_t **rterm)
1041{
1042 printf("terminal_create(%zu, %zu)\n", width, height);
1043
1044 errno_t rc;
1045
1046 terminal_t *term = calloc(1, sizeof(terminal_t));
1047 if (term == NULL) {
1048 printf("Out of memory.\n");
1049 return ENOMEM;
1050 }
1051
1052 link_initialize(&term->link);
1053 fibril_mutex_initialize(&term->mtx);
1054 atomic_flag_clear(&term->refcnt);
1055
1056 prodcons_initialize(&term->input_pc);
1057 term->char_remains_len = 0;
1058
1059 term->default_bgcolor = termui_color_from_pixel(_basic_colors[COLOR_WHITE | COLOR_BRIGHT]);
1060 term->default_fgcolor = termui_color_from_pixel(_basic_colors[COLOR_BLACK]);
1061
1062 term->emphasis_bgcolor = termui_color_from_pixel(_basic_colors[COLOR_WHITE | COLOR_BRIGHT]);
1063 term->emphasis_fgcolor = termui_color_from_pixel(_basic_colors[COLOR_RED | COLOR_BRIGHT]);
1064
1065 term->selection_bgcolor = termui_color_from_pixel(_basic_colors[COLOR_RED | COLOR_BRIGHT]);
1066 term->selection_fgcolor = termui_color_from_pixel(_basic_colors[COLOR_WHITE | COLOR_BRIGHT]);
1067
1068 term->termui = termui_create(width / FONT_WIDTH, height / FONT_SCANLINES,
1069 SCROLLBACK_MAX_LINES);
1070 if (!term->termui) {
1071 printf("Error creating terminal UI.\n");
1072 rc = ENOMEM;
1073 goto error;
1074 }
1075
1076 termui_set_refresh_cb(term->termui, termui_refresh_cb, term);
1077 termui_set_scroll_cb(term->termui, termui_scroll_cb, term);
1078 termui_set_update_cb(term->termui, termui_update_cb, term);
1079
1080 rc = term_init_window(term, display_spec, width, height,
1081 MIN_WINDOW_COLS * FONT_WIDTH, MIN_WINDOW_ROWS * FONT_SCANLINES, flags);
1082 if (rc != EOK) {
1083 printf("Error creating window (%s).\n", str_error(rc));
1084 goto error;
1085 }
1086
1087 async_set_fallback_port_handler(term_connection, NULL);
1088 con_srvs_init(&term->srvs);
1089 term->srvs.ops = &con_ops;
1090 term->srvs.sarg = term;
1091
1092 rc = loc_server_register(NAME, &term->srv);
1093 if (rc != EOK) {
1094 printf("Error registering server.\n");
1095 rc = EIO;
1096 goto error;
1097 }
1098
1099 char vc[LOC_NAME_MAXLEN + 1];
1100 snprintf(vc, LOC_NAME_MAXLEN, "%s/%" PRIu64, NAMESPACE,
1101 task_get_id());
1102
1103 rc = loc_service_register(term->srv, vc, &term->dsid);
1104 if (rc != EOK) {
1105 printf("Error registering service.\n");
1106 rc = EIO;
1107 goto error;
1108 }
1109
1110 list_append(&term->link, &terms);
1111 rc = getterm(&term->wait, vc, command);
1112 if (rc != EOK)
1113 goto error;
1114
1115 term->wfid = fibril_create(terminal_wait_fibril, term);
1116 if (term->wfid == 0)
1117 goto error;
1118
1119 fibril_add_ready(term->wfid);
1120
1121 term->is_focused = true;
1122
1123 termui_refresh_cb(term);
1124
1125 *rterm = term;
1126 return EOK;
1127error:
1128 if (term->dsid != 0)
1129 loc_service_unregister(term->srv, term->dsid);
1130 if (term->srv != NULL)
1131 loc_server_unregister(term->srv);
1132 if (term->window != NULL)
1133 ui_window_destroy(term->window);
1134 if (term->ui != NULL)
1135 ui_destroy(term->ui);
1136 if (term->termui != NULL)
1137 termui_destroy(term->termui);
1138 free(term);
1139 return rc;
1140}
1141
1142static errno_t terminal_wait_fibril(void *arg)
1143{
1144 terminal_t *term = (terminal_t *)arg;
1145 task_exit_t texit;
1146 int retval;
1147
1148 /*
1149 * XXX There is no way to break the sleep if the task does not
1150 * exit.
1151 */
1152 (void) task_wait(&term->wait, &texit, &retval);
1153 ui_quit(term->ui);
1154 return EOK;
1155}
1156
1157/** @}
1158 */
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