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ui/sdl2: fix segment fault caused by null pointer dereference
[mirror_qemu.git] / ui / console.c
1 /*
2 * QEMU graphical console
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "ui/console.h"
27 #include "hw/qdev-core.h"
28 #include "qapi/error.h"
29 #include "qapi/qapi-commands-ui.h"
30 #include "qemu/module.h"
31 #include "qemu/option.h"
32 #include "qemu/timer.h"
33 #include "chardev/char-fe.h"
34 #include "trace.h"
35 #include "exec/memory.h"
36 #include "io/channel-file.h"
37
38 #define DEFAULT_BACKSCROLL 512
39 #define CONSOLE_CURSOR_PERIOD 500
40
41 typedef struct TextAttributes {
42 uint8_t fgcol:4;
43 uint8_t bgcol:4;
44 uint8_t bold:1;
45 uint8_t uline:1;
46 uint8_t blink:1;
47 uint8_t invers:1;
48 uint8_t unvisible:1;
49 } TextAttributes;
50
51 typedef struct TextCell {
52 uint8_t ch;
53 TextAttributes t_attrib;
54 } TextCell;
55
56 #define MAX_ESC_PARAMS 3
57
58 enum TTYState {
59 TTY_STATE_NORM,
60 TTY_STATE_ESC,
61 TTY_STATE_CSI,
62 };
63
64 typedef struct QEMUFIFO {
65 uint8_t *buf;
66 int buf_size;
67 int count, wptr, rptr;
68 } QEMUFIFO;
69
70 static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
71 {
72 int l, len;
73
74 l = f->buf_size - f->count;
75 if (len1 > l)
76 len1 = l;
77 len = len1;
78 while (len > 0) {
79 l = f->buf_size - f->wptr;
80 if (l > len)
81 l = len;
82 memcpy(f->buf + f->wptr, buf, l);
83 f->wptr += l;
84 if (f->wptr >= f->buf_size)
85 f->wptr = 0;
86 buf += l;
87 len -= l;
88 }
89 f->count += len1;
90 return len1;
91 }
92
93 static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
94 {
95 int l, len;
96
97 if (len1 > f->count)
98 len1 = f->count;
99 len = len1;
100 while (len > 0) {
101 l = f->buf_size - f->rptr;
102 if (l > len)
103 l = len;
104 memcpy(buf, f->buf + f->rptr, l);
105 f->rptr += l;
106 if (f->rptr >= f->buf_size)
107 f->rptr = 0;
108 buf += l;
109 len -= l;
110 }
111 f->count -= len1;
112 return len1;
113 }
114
115 typedef enum {
116 GRAPHIC_CONSOLE,
117 TEXT_CONSOLE,
118 TEXT_CONSOLE_FIXED_SIZE
119 } console_type_t;
120
121 struct QemuConsole {
122 Object parent;
123
124 int index;
125 console_type_t console_type;
126 DisplayState *ds;
127 DisplaySurface *surface;
128 int dcls;
129 DisplayChangeListener *gl;
130 bool gl_block;
131 int window_id;
132
133 /* Graphic console state. */
134 Object *device;
135 uint32_t head;
136 QemuUIInfo ui_info;
137 QEMUTimer *ui_timer;
138 const GraphicHwOps *hw_ops;
139 void *hw;
140
141 /* Text console state */
142 int width;
143 int height;
144 int total_height;
145 int backscroll_height;
146 int x, y;
147 int x_saved, y_saved;
148 int y_displayed;
149 int y_base;
150 TextAttributes t_attrib_default; /* default text attributes */
151 TextAttributes t_attrib; /* currently active text attributes */
152 TextCell *cells;
153 int text_x[2], text_y[2], cursor_invalidate;
154 int echo;
155
156 int update_x0;
157 int update_y0;
158 int update_x1;
159 int update_y1;
160
161 enum TTYState state;
162 int esc_params[MAX_ESC_PARAMS];
163 int nb_esc_params;
164
165 Chardev *chr;
166 /* fifo for key pressed */
167 QEMUFIFO out_fifo;
168 uint8_t out_fifo_buf[16];
169 QEMUTimer *kbd_timer;
170
171 QTAILQ_ENTRY(QemuConsole) next;
172 };
173
174 struct DisplayState {
175 QEMUTimer *gui_timer;
176 uint64_t last_update;
177 uint64_t update_interval;
178 bool refreshing;
179 bool have_gfx;
180 bool have_text;
181
182 QLIST_HEAD(, DisplayChangeListener) listeners;
183 };
184
185 static DisplayState *display_state;
186 static QemuConsole *active_console;
187 static QTAILQ_HEAD(, QemuConsole) consoles =
188 QTAILQ_HEAD_INITIALIZER(consoles);
189 static bool cursor_visible_phase;
190 static QEMUTimer *cursor_timer;
191
192 static void text_console_do_init(Chardev *chr, DisplayState *ds);
193 static void dpy_refresh(DisplayState *s);
194 static DisplayState *get_alloc_displaystate(void);
195 static void text_console_update_cursor_timer(void);
196 static void text_console_update_cursor(void *opaque);
197 static bool ppm_save(int fd, DisplaySurface *ds, Error **errp);
198
199 static void gui_update(void *opaque)
200 {
201 uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
202 uint64_t dcl_interval;
203 DisplayState *ds = opaque;
204 DisplayChangeListener *dcl;
205 QemuConsole *con;
206
207 ds->refreshing = true;
208 dpy_refresh(ds);
209 ds->refreshing = false;
210
211 QLIST_FOREACH(dcl, &ds->listeners, next) {
212 dcl_interval = dcl->update_interval ?
213 dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
214 if (interval > dcl_interval) {
215 interval = dcl_interval;
216 }
217 }
218 if (ds->update_interval != interval) {
219 ds->update_interval = interval;
220 QTAILQ_FOREACH(con, &consoles, next) {
221 if (con->hw_ops->update_interval) {
222 con->hw_ops->update_interval(con->hw, interval);
223 }
224 }
225 trace_console_refresh(interval);
226 }
227 ds->last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
228 timer_mod(ds->gui_timer, ds->last_update + interval);
229 }
230
231 static void gui_setup_refresh(DisplayState *ds)
232 {
233 DisplayChangeListener *dcl;
234 bool need_timer = false;
235 bool have_gfx = false;
236 bool have_text = false;
237
238 QLIST_FOREACH(dcl, &ds->listeners, next) {
239 if (dcl->ops->dpy_refresh != NULL) {
240 need_timer = true;
241 }
242 if (dcl->ops->dpy_gfx_update != NULL) {
243 have_gfx = true;
244 }
245 if (dcl->ops->dpy_text_update != NULL) {
246 have_text = true;
247 }
248 }
249
250 if (need_timer && ds->gui_timer == NULL) {
251 ds->gui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, gui_update, ds);
252 timer_mod(ds->gui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
253 }
254 if (!need_timer && ds->gui_timer != NULL) {
255 timer_del(ds->gui_timer);
256 timer_free(ds->gui_timer);
257 ds->gui_timer = NULL;
258 }
259
260 ds->have_gfx = have_gfx;
261 ds->have_text = have_text;
262 }
263
264 void graphic_hw_update_done(QemuConsole *con)
265 {
266 }
267
268 void graphic_hw_update(QemuConsole *con)
269 {
270 bool async = false;
271 if (!con) {
272 con = active_console;
273 }
274 if (con && con->hw_ops->gfx_update) {
275 con->hw_ops->gfx_update(con->hw);
276 async = con->hw_ops->gfx_update_async;
277 }
278 if (!async) {
279 graphic_hw_update_done(con);
280 }
281 }
282
283 void graphic_hw_gl_block(QemuConsole *con, bool block)
284 {
285 assert(con != NULL);
286
287 con->gl_block = block;
288 if (con->hw_ops->gl_block) {
289 con->hw_ops->gl_block(con->hw, block);
290 }
291 }
292
293 int qemu_console_get_window_id(QemuConsole *con)
294 {
295 return con->window_id;
296 }
297
298 void qemu_console_set_window_id(QemuConsole *con, int window_id)
299 {
300 con->window_id = window_id;
301 }
302
303 void graphic_hw_invalidate(QemuConsole *con)
304 {
305 if (!con) {
306 con = active_console;
307 }
308 if (con && con->hw_ops->invalidate) {
309 con->hw_ops->invalidate(con->hw);
310 }
311 }
312
313 static bool ppm_save(int fd, DisplaySurface *ds, Error **errp)
314 {
315 int width = pixman_image_get_width(ds->image);
316 int height = pixman_image_get_height(ds->image);
317 g_autoptr(Object) ioc = OBJECT(qio_channel_file_new_fd(fd));
318 g_autofree char *header = NULL;
319 g_autoptr(pixman_image_t) linebuf = NULL;
320 int y;
321
322 trace_ppm_save(fd, ds);
323
324 header = g_strdup_printf("P6\n%d %d\n%d\n", width, height, 255);
325 if (qio_channel_write_all(QIO_CHANNEL(ioc),
326 header, strlen(header), errp) < 0) {
327 return false;
328 }
329
330 linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
331 for (y = 0; y < height; y++) {
332 qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
333 if (qio_channel_write_all(QIO_CHANNEL(ioc),
334 (char *)pixman_image_get_data(linebuf),
335 pixman_image_get_stride(linebuf), errp) < 0) {
336 return false;
337 }
338 }
339
340 return true;
341 }
342
343 void qmp_screendump(const char *filename, bool has_device, const char *device,
344 bool has_head, int64_t head, Error **errp)
345 {
346 QemuConsole *con;
347 DisplaySurface *surface;
348 int fd;
349
350 if (has_device) {
351 con = qemu_console_lookup_by_device_name(device, has_head ? head : 0,
352 errp);
353 if (!con) {
354 return;
355 }
356 } else {
357 if (has_head) {
358 error_setg(errp, "'head' must be specified together with 'device'");
359 return;
360 }
361 con = qemu_console_lookup_by_index(0);
362 if (!con) {
363 error_setg(errp, "There is no console to take a screendump from");
364 return;
365 }
366 }
367
368 graphic_hw_update(con);
369 surface = qemu_console_surface(con);
370 if (!surface) {
371 error_setg(errp, "no surface");
372 return;
373 }
374
375 fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
376 if (fd == -1) {
377 error_setg(errp, "failed to open file '%s': %s", filename,
378 strerror(errno));
379 return;
380 }
381
382 if (!ppm_save(fd, surface, errp)) {
383 qemu_unlink(filename);
384 }
385 }
386
387 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
388 {
389 if (!con) {
390 con = active_console;
391 }
392 if (con && con->hw_ops->text_update) {
393 con->hw_ops->text_update(con->hw, chardata);
394 }
395 }
396
397 static void vga_fill_rect(QemuConsole *con,
398 int posx, int posy, int width, int height,
399 pixman_color_t color)
400 {
401 DisplaySurface *surface = qemu_console_surface(con);
402 pixman_rectangle16_t rect = {
403 .x = posx, .y = posy, .width = width, .height = height
404 };
405
406 pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
407 &color, 1, &rect);
408 }
409
410 /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
411 static void vga_bitblt(QemuConsole *con,
412 int xs, int ys, int xd, int yd, int w, int h)
413 {
414 DisplaySurface *surface = qemu_console_surface(con);
415
416 pixman_image_composite(PIXMAN_OP_SRC,
417 surface->image, NULL, surface->image,
418 xs, ys, 0, 0, xd, yd, w, h);
419 }
420
421 /***********************************************************/
422 /* basic char display */
423
424 #define FONT_HEIGHT 16
425 #define FONT_WIDTH 8
426
427 #include "vgafont.h"
428
429 #define QEMU_RGB(r, g, b) \
430 { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
431
432 static const pixman_color_t color_table_rgb[2][8] = {
433 { /* dark */
434 [QEMU_COLOR_BLACK] = QEMU_RGB(0x00, 0x00, 0x00), /* black */
435 [QEMU_COLOR_BLUE] = QEMU_RGB(0x00, 0x00, 0xaa), /* blue */
436 [QEMU_COLOR_GREEN] = QEMU_RGB(0x00, 0xaa, 0x00), /* green */
437 [QEMU_COLOR_CYAN] = QEMU_RGB(0x00, 0xaa, 0xaa), /* cyan */
438 [QEMU_COLOR_RED] = QEMU_RGB(0xaa, 0x00, 0x00), /* red */
439 [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xaa, 0x00, 0xaa), /* magenta */
440 [QEMU_COLOR_YELLOW] = QEMU_RGB(0xaa, 0xaa, 0x00), /* yellow */
441 [QEMU_COLOR_WHITE] = QEMU_RGB(0xaa, 0xaa, 0xaa), /* white */
442 },
443 { /* bright */
444 [QEMU_COLOR_BLACK] = QEMU_RGB(0x00, 0x00, 0x00), /* black */
445 [QEMU_COLOR_BLUE] = QEMU_RGB(0x00, 0x00, 0xff), /* blue */
446 [QEMU_COLOR_GREEN] = QEMU_RGB(0x00, 0xff, 0x00), /* green */
447 [QEMU_COLOR_CYAN] = QEMU_RGB(0x00, 0xff, 0xff), /* cyan */
448 [QEMU_COLOR_RED] = QEMU_RGB(0xff, 0x00, 0x00), /* red */
449 [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xff, 0x00, 0xff), /* magenta */
450 [QEMU_COLOR_YELLOW] = QEMU_RGB(0xff, 0xff, 0x00), /* yellow */
451 [QEMU_COLOR_WHITE] = QEMU_RGB(0xff, 0xff, 0xff), /* white */
452 }
453 };
454
455 static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
456 TextAttributes *t_attrib)
457 {
458 static pixman_image_t *glyphs[256];
459 DisplaySurface *surface = qemu_console_surface(s);
460 pixman_color_t fgcol, bgcol;
461
462 if (t_attrib->invers) {
463 bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
464 fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
465 } else {
466 fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
467 bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
468 }
469
470 if (!glyphs[ch]) {
471 glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
472 }
473 qemu_pixman_glyph_render(glyphs[ch], surface->image,
474 &fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
475 }
476
477 static void text_console_resize(QemuConsole *s)
478 {
479 TextCell *cells, *c, *c1;
480 int w1, x, y, last_width;
481
482 last_width = s->width;
483 s->width = surface_width(s->surface) / FONT_WIDTH;
484 s->height = surface_height(s->surface) / FONT_HEIGHT;
485
486 w1 = last_width;
487 if (s->width < w1)
488 w1 = s->width;
489
490 cells = g_new(TextCell, s->width * s->total_height + 1);
491 for(y = 0; y < s->total_height; y++) {
492 c = &cells[y * s->width];
493 if (w1 > 0) {
494 c1 = &s->cells[y * last_width];
495 for(x = 0; x < w1; x++) {
496 *c++ = *c1++;
497 }
498 }
499 for(x = w1; x < s->width; x++) {
500 c->ch = ' ';
501 c->t_attrib = s->t_attrib_default;
502 c++;
503 }
504 }
505 g_free(s->cells);
506 s->cells = cells;
507 }
508
509 static inline void text_update_xy(QemuConsole *s, int x, int y)
510 {
511 s->text_x[0] = MIN(s->text_x[0], x);
512 s->text_x[1] = MAX(s->text_x[1], x);
513 s->text_y[0] = MIN(s->text_y[0], y);
514 s->text_y[1] = MAX(s->text_y[1], y);
515 }
516
517 static void invalidate_xy(QemuConsole *s, int x, int y)
518 {
519 if (!qemu_console_is_visible(s)) {
520 return;
521 }
522 if (s->update_x0 > x * FONT_WIDTH)
523 s->update_x0 = x * FONT_WIDTH;
524 if (s->update_y0 > y * FONT_HEIGHT)
525 s->update_y0 = y * FONT_HEIGHT;
526 if (s->update_x1 < (x + 1) * FONT_WIDTH)
527 s->update_x1 = (x + 1) * FONT_WIDTH;
528 if (s->update_y1 < (y + 1) * FONT_HEIGHT)
529 s->update_y1 = (y + 1) * FONT_HEIGHT;
530 }
531
532 static void update_xy(QemuConsole *s, int x, int y)
533 {
534 TextCell *c;
535 int y1, y2;
536
537 if (s->ds->have_text) {
538 text_update_xy(s, x, y);
539 }
540
541 y1 = (s->y_base + y) % s->total_height;
542 y2 = y1 - s->y_displayed;
543 if (y2 < 0) {
544 y2 += s->total_height;
545 }
546 if (y2 < s->height) {
547 if (x >= s->width) {
548 x = s->width - 1;
549 }
550 c = &s->cells[y1 * s->width + x];
551 vga_putcharxy(s, x, y2, c->ch,
552 &(c->t_attrib));
553 invalidate_xy(s, x, y2);
554 }
555 }
556
557 static void console_show_cursor(QemuConsole *s, int show)
558 {
559 TextCell *c;
560 int y, y1;
561 int x = s->x;
562
563 if (s->ds->have_text) {
564 s->cursor_invalidate = 1;
565 }
566
567 if (x >= s->width) {
568 x = s->width - 1;
569 }
570 y1 = (s->y_base + s->y) % s->total_height;
571 y = y1 - s->y_displayed;
572 if (y < 0) {
573 y += s->total_height;
574 }
575 if (y < s->height) {
576 c = &s->cells[y1 * s->width + x];
577 if (show && cursor_visible_phase) {
578 TextAttributes t_attrib = s->t_attrib_default;
579 t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
580 vga_putcharxy(s, x, y, c->ch, &t_attrib);
581 } else {
582 vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
583 }
584 invalidate_xy(s, x, y);
585 }
586 }
587
588 static void console_refresh(QemuConsole *s)
589 {
590 DisplaySurface *surface = qemu_console_surface(s);
591 TextCell *c;
592 int x, y, y1;
593
594 if (s->ds->have_text) {
595 s->text_x[0] = 0;
596 s->text_y[0] = 0;
597 s->text_x[1] = s->width - 1;
598 s->text_y[1] = s->height - 1;
599 s->cursor_invalidate = 1;
600 }
601
602 vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
603 color_table_rgb[0][QEMU_COLOR_BLACK]);
604 y1 = s->y_displayed;
605 for (y = 0; y < s->height; y++) {
606 c = s->cells + y1 * s->width;
607 for (x = 0; x < s->width; x++) {
608 vga_putcharxy(s, x, y, c->ch,
609 &(c->t_attrib));
610 c++;
611 }
612 if (++y1 == s->total_height) {
613 y1 = 0;
614 }
615 }
616 console_show_cursor(s, 1);
617 dpy_gfx_update(s, 0, 0,
618 surface_width(surface), surface_height(surface));
619 }
620
621 static void console_scroll(QemuConsole *s, int ydelta)
622 {
623 int i, y1;
624
625 if (ydelta > 0) {
626 for(i = 0; i < ydelta; i++) {
627 if (s->y_displayed == s->y_base)
628 break;
629 if (++s->y_displayed == s->total_height)
630 s->y_displayed = 0;
631 }
632 } else {
633 ydelta = -ydelta;
634 i = s->backscroll_height;
635 if (i > s->total_height - s->height)
636 i = s->total_height - s->height;
637 y1 = s->y_base - i;
638 if (y1 < 0)
639 y1 += s->total_height;
640 for(i = 0; i < ydelta; i++) {
641 if (s->y_displayed == y1)
642 break;
643 if (--s->y_displayed < 0)
644 s->y_displayed = s->total_height - 1;
645 }
646 }
647 console_refresh(s);
648 }
649
650 static void console_put_lf(QemuConsole *s)
651 {
652 TextCell *c;
653 int x, y1;
654
655 s->y++;
656 if (s->y >= s->height) {
657 s->y = s->height - 1;
658
659 if (s->y_displayed == s->y_base) {
660 if (++s->y_displayed == s->total_height)
661 s->y_displayed = 0;
662 }
663 if (++s->y_base == s->total_height)
664 s->y_base = 0;
665 if (s->backscroll_height < s->total_height)
666 s->backscroll_height++;
667 y1 = (s->y_base + s->height - 1) % s->total_height;
668 c = &s->cells[y1 * s->width];
669 for(x = 0; x < s->width; x++) {
670 c->ch = ' ';
671 c->t_attrib = s->t_attrib_default;
672 c++;
673 }
674 if (s->y_displayed == s->y_base) {
675 if (s->ds->have_text) {
676 s->text_x[0] = 0;
677 s->text_y[0] = 0;
678 s->text_x[1] = s->width - 1;
679 s->text_y[1] = s->height - 1;
680 }
681
682 vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
683 s->width * FONT_WIDTH,
684 (s->height - 1) * FONT_HEIGHT);
685 vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
686 s->width * FONT_WIDTH, FONT_HEIGHT,
687 color_table_rgb[0][s->t_attrib_default.bgcol]);
688 s->update_x0 = 0;
689 s->update_y0 = 0;
690 s->update_x1 = s->width * FONT_WIDTH;
691 s->update_y1 = s->height * FONT_HEIGHT;
692 }
693 }
694 }
695
696 /* Set console attributes depending on the current escape codes.
697 * NOTE: I know this code is not very efficient (checking every color for it
698 * self) but it is more readable and better maintainable.
699 */
700 static void console_handle_escape(QemuConsole *s)
701 {
702 int i;
703
704 for (i=0; i<s->nb_esc_params; i++) {
705 switch (s->esc_params[i]) {
706 case 0: /* reset all console attributes to default */
707 s->t_attrib = s->t_attrib_default;
708 break;
709 case 1:
710 s->t_attrib.bold = 1;
711 break;
712 case 4:
713 s->t_attrib.uline = 1;
714 break;
715 case 5:
716 s->t_attrib.blink = 1;
717 break;
718 case 7:
719 s->t_attrib.invers = 1;
720 break;
721 case 8:
722 s->t_attrib.unvisible = 1;
723 break;
724 case 22:
725 s->t_attrib.bold = 0;
726 break;
727 case 24:
728 s->t_attrib.uline = 0;
729 break;
730 case 25:
731 s->t_attrib.blink = 0;
732 break;
733 case 27:
734 s->t_attrib.invers = 0;
735 break;
736 case 28:
737 s->t_attrib.unvisible = 0;
738 break;
739 /* set foreground color */
740 case 30:
741 s->t_attrib.fgcol = QEMU_COLOR_BLACK;
742 break;
743 case 31:
744 s->t_attrib.fgcol = QEMU_COLOR_RED;
745 break;
746 case 32:
747 s->t_attrib.fgcol = QEMU_COLOR_GREEN;
748 break;
749 case 33:
750 s->t_attrib.fgcol = QEMU_COLOR_YELLOW;
751 break;
752 case 34:
753 s->t_attrib.fgcol = QEMU_COLOR_BLUE;
754 break;
755 case 35:
756 s->t_attrib.fgcol = QEMU_COLOR_MAGENTA;
757 break;
758 case 36:
759 s->t_attrib.fgcol = QEMU_COLOR_CYAN;
760 break;
761 case 37:
762 s->t_attrib.fgcol = QEMU_COLOR_WHITE;
763 break;
764 /* set background color */
765 case 40:
766 s->t_attrib.bgcol = QEMU_COLOR_BLACK;
767 break;
768 case 41:
769 s->t_attrib.bgcol = QEMU_COLOR_RED;
770 break;
771 case 42:
772 s->t_attrib.bgcol = QEMU_COLOR_GREEN;
773 break;
774 case 43:
775 s->t_attrib.bgcol = QEMU_COLOR_YELLOW;
776 break;
777 case 44:
778 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
779 break;
780 case 45:
781 s->t_attrib.bgcol = QEMU_COLOR_MAGENTA;
782 break;
783 case 46:
784 s->t_attrib.bgcol = QEMU_COLOR_CYAN;
785 break;
786 case 47:
787 s->t_attrib.bgcol = QEMU_COLOR_WHITE;
788 break;
789 }
790 }
791 }
792
793 static void console_clear_xy(QemuConsole *s, int x, int y)
794 {
795 int y1 = (s->y_base + y) % s->total_height;
796 if (x >= s->width) {
797 x = s->width - 1;
798 }
799 TextCell *c = &s->cells[y1 * s->width + x];
800 c->ch = ' ';
801 c->t_attrib = s->t_attrib_default;
802 update_xy(s, x, y);
803 }
804
805 static void console_put_one(QemuConsole *s, int ch)
806 {
807 TextCell *c;
808 int y1;
809 if (s->x >= s->width) {
810 /* line wrap */
811 s->x = 0;
812 console_put_lf(s);
813 }
814 y1 = (s->y_base + s->y) % s->total_height;
815 c = &s->cells[y1 * s->width + s->x];
816 c->ch = ch;
817 c->t_attrib = s->t_attrib;
818 update_xy(s, s->x, s->y);
819 s->x++;
820 }
821
822 static void console_respond_str(QemuConsole *s, const char *buf)
823 {
824 while (*buf) {
825 console_put_one(s, *buf);
826 buf++;
827 }
828 }
829
830 /* set cursor, checking bounds */
831 static void set_cursor(QemuConsole *s, int x, int y)
832 {
833 if (x < 0) {
834 x = 0;
835 }
836 if (y < 0) {
837 y = 0;
838 }
839 if (y >= s->height) {
840 y = s->height - 1;
841 }
842 if (x >= s->width) {
843 x = s->width - 1;
844 }
845
846 s->x = x;
847 s->y = y;
848 }
849
850 static void console_putchar(QemuConsole *s, int ch)
851 {
852 int i;
853 int x, y;
854 char response[40];
855
856 switch(s->state) {
857 case TTY_STATE_NORM:
858 switch(ch) {
859 case '\r': /* carriage return */
860 s->x = 0;
861 break;
862 case '\n': /* newline */
863 console_put_lf(s);
864 break;
865 case '\b': /* backspace */
866 if (s->x > 0)
867 s->x--;
868 break;
869 case '\t': /* tabspace */
870 if (s->x + (8 - (s->x % 8)) > s->width) {
871 s->x = 0;
872 console_put_lf(s);
873 } else {
874 s->x = s->x + (8 - (s->x % 8));
875 }
876 break;
877 case '\a': /* alert aka. bell */
878 /* TODO: has to be implemented */
879 break;
880 case 14:
881 /* SI (shift in), character set 0 (ignored) */
882 break;
883 case 15:
884 /* SO (shift out), character set 1 (ignored) */
885 break;
886 case 27: /* esc (introducing an escape sequence) */
887 s->state = TTY_STATE_ESC;
888 break;
889 default:
890 console_put_one(s, ch);
891 break;
892 }
893 break;
894 case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
895 if (ch == '[') {
896 for(i=0;i<MAX_ESC_PARAMS;i++)
897 s->esc_params[i] = 0;
898 s->nb_esc_params = 0;
899 s->state = TTY_STATE_CSI;
900 } else {
901 s->state = TTY_STATE_NORM;
902 }
903 break;
904 case TTY_STATE_CSI: /* handle escape sequence parameters */
905 if (ch >= '0' && ch <= '9') {
906 if (s->nb_esc_params < MAX_ESC_PARAMS) {
907 int *param = &s->esc_params[s->nb_esc_params];
908 int digit = (ch - '0');
909
910 *param = (*param <= (INT_MAX - digit) / 10) ?
911 *param * 10 + digit : INT_MAX;
912 }
913 } else {
914 if (s->nb_esc_params < MAX_ESC_PARAMS)
915 s->nb_esc_params++;
916 if (ch == ';' || ch == '?') {
917 break;
918 }
919 trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
920 ch, s->nb_esc_params);
921 s->state = TTY_STATE_NORM;
922 switch(ch) {
923 case 'A':
924 /* move cursor up */
925 if (s->esc_params[0] == 0) {
926 s->esc_params[0] = 1;
927 }
928 set_cursor(s, s->x, s->y - s->esc_params[0]);
929 break;
930 case 'B':
931 /* move cursor down */
932 if (s->esc_params[0] == 0) {
933 s->esc_params[0] = 1;
934 }
935 set_cursor(s, s->x, s->y + s->esc_params[0]);
936 break;
937 case 'C':
938 /* move cursor right */
939 if (s->esc_params[0] == 0) {
940 s->esc_params[0] = 1;
941 }
942 set_cursor(s, s->x + s->esc_params[0], s->y);
943 break;
944 case 'D':
945 /* move cursor left */
946 if (s->esc_params[0] == 0) {
947 s->esc_params[0] = 1;
948 }
949 set_cursor(s, s->x - s->esc_params[0], s->y);
950 break;
951 case 'G':
952 /* move cursor to column */
953 set_cursor(s, s->esc_params[0] - 1, s->y);
954 break;
955 case 'f':
956 case 'H':
957 /* move cursor to row, column */
958 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
959 break;
960 case 'J':
961 switch (s->esc_params[0]) {
962 case 0:
963 /* clear to end of screen */
964 for (y = s->y; y < s->height; y++) {
965 for (x = 0; x < s->width; x++) {
966 if (y == s->y && x < s->x) {
967 continue;
968 }
969 console_clear_xy(s, x, y);
970 }
971 }
972 break;
973 case 1:
974 /* clear from beginning of screen */
975 for (y = 0; y <= s->y; y++) {
976 for (x = 0; x < s->width; x++) {
977 if (y == s->y && x > s->x) {
978 break;
979 }
980 console_clear_xy(s, x, y);
981 }
982 }
983 break;
984 case 2:
985 /* clear entire screen */
986 for (y = 0; y <= s->height; y++) {
987 for (x = 0; x < s->width; x++) {
988 console_clear_xy(s, x, y);
989 }
990 }
991 break;
992 }
993 break;
994 case 'K':
995 switch (s->esc_params[0]) {
996 case 0:
997 /* clear to eol */
998 for(x = s->x; x < s->width; x++) {
999 console_clear_xy(s, x, s->y);
1000 }
1001 break;
1002 case 1:
1003 /* clear from beginning of line */
1004 for (x = 0; x <= s->x && x < s->width; x++) {
1005 console_clear_xy(s, x, s->y);
1006 }
1007 break;
1008 case 2:
1009 /* clear entire line */
1010 for(x = 0; x < s->width; x++) {
1011 console_clear_xy(s, x, s->y);
1012 }
1013 break;
1014 }
1015 break;
1016 case 'm':
1017 console_handle_escape(s);
1018 break;
1019 case 'n':
1020 switch (s->esc_params[0]) {
1021 case 5:
1022 /* report console status (always succeed)*/
1023 console_respond_str(s, "\033[0n");
1024 break;
1025 case 6:
1026 /* report cursor position */
1027 sprintf(response, "\033[%d;%dR",
1028 (s->y_base + s->y) % s->total_height + 1,
1029 s->x + 1);
1030 console_respond_str(s, response);
1031 break;
1032 }
1033 break;
1034 case 's':
1035 /* save cursor position */
1036 s->x_saved = s->x;
1037 s->y_saved = s->y;
1038 break;
1039 case 'u':
1040 /* restore cursor position */
1041 s->x = s->x_saved;
1042 s->y = s->y_saved;
1043 break;
1044 default:
1045 trace_console_putchar_unhandled(ch);
1046 break;
1047 }
1048 break;
1049 }
1050 }
1051 }
1052
1053 void console_select(unsigned int index)
1054 {
1055 DisplayChangeListener *dcl;
1056 QemuConsole *s;
1057
1058 trace_console_select(index);
1059 s = qemu_console_lookup_by_index(index);
1060 if (s) {
1061 DisplayState *ds = s->ds;
1062
1063 active_console = s;
1064 if (ds->have_gfx) {
1065 QLIST_FOREACH(dcl, &ds->listeners, next) {
1066 if (dcl->con != NULL) {
1067 continue;
1068 }
1069 if (dcl->ops->dpy_gfx_switch) {
1070 dcl->ops->dpy_gfx_switch(dcl, s->surface);
1071 }
1072 }
1073 if (s->surface) {
1074 dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1075 surface_height(s->surface));
1076 }
1077 }
1078 if (ds->have_text) {
1079 dpy_text_resize(s, s->width, s->height);
1080 }
1081 text_console_update_cursor(NULL);
1082 }
1083 }
1084
1085 typedef struct VCChardev {
1086 Chardev parent;
1087 QemuConsole *console;
1088 } VCChardev;
1089
1090 #define TYPE_CHARDEV_VC "chardev-vc"
1091 #define VC_CHARDEV(obj) OBJECT_CHECK(VCChardev, (obj), TYPE_CHARDEV_VC)
1092
1093 static int vc_chr_write(Chardev *chr, const uint8_t *buf, int len)
1094 {
1095 VCChardev *drv = VC_CHARDEV(chr);
1096 QemuConsole *s = drv->console;
1097 int i;
1098
1099 if (!s->ds) {
1100 return 0;
1101 }
1102
1103 s->update_x0 = s->width * FONT_WIDTH;
1104 s->update_y0 = s->height * FONT_HEIGHT;
1105 s->update_x1 = 0;
1106 s->update_y1 = 0;
1107 console_show_cursor(s, 0);
1108 for(i = 0; i < len; i++) {
1109 console_putchar(s, buf[i]);
1110 }
1111 console_show_cursor(s, 1);
1112 if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1113 dpy_gfx_update(s, s->update_x0, s->update_y0,
1114 s->update_x1 - s->update_x0,
1115 s->update_y1 - s->update_y0);
1116 }
1117 return len;
1118 }
1119
1120 static void kbd_send_chars(void *opaque)
1121 {
1122 QemuConsole *s = opaque;
1123 int len;
1124 uint8_t buf[16];
1125
1126 len = qemu_chr_be_can_write(s->chr);
1127 if (len > s->out_fifo.count)
1128 len = s->out_fifo.count;
1129 if (len > 0) {
1130 if (len > sizeof(buf))
1131 len = sizeof(buf);
1132 qemu_fifo_read(&s->out_fifo, buf, len);
1133 qemu_chr_be_write(s->chr, buf, len);
1134 }
1135 /* characters are pending: we send them a bit later (XXX:
1136 horrible, should change char device API) */
1137 if (s->out_fifo.count > 0) {
1138 timer_mod(s->kbd_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1);
1139 }
1140 }
1141
1142 /* called when an ascii key is pressed */
1143 void kbd_put_keysym_console(QemuConsole *s, int keysym)
1144 {
1145 uint8_t buf[16], *q;
1146 CharBackend *be;
1147 int c;
1148
1149 if (!s || (s->console_type == GRAPHIC_CONSOLE))
1150 return;
1151
1152 switch(keysym) {
1153 case QEMU_KEY_CTRL_UP:
1154 console_scroll(s, -1);
1155 break;
1156 case QEMU_KEY_CTRL_DOWN:
1157 console_scroll(s, 1);
1158 break;
1159 case QEMU_KEY_CTRL_PAGEUP:
1160 console_scroll(s, -10);
1161 break;
1162 case QEMU_KEY_CTRL_PAGEDOWN:
1163 console_scroll(s, 10);
1164 break;
1165 default:
1166 /* convert the QEMU keysym to VT100 key string */
1167 q = buf;
1168 if (keysym >= 0xe100 && keysym <= 0xe11f) {
1169 *q++ = '\033';
1170 *q++ = '[';
1171 c = keysym - 0xe100;
1172 if (c >= 10)
1173 *q++ = '0' + (c / 10);
1174 *q++ = '0' + (c % 10);
1175 *q++ = '~';
1176 } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1177 *q++ = '\033';
1178 *q++ = '[';
1179 *q++ = keysym & 0xff;
1180 } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1181 vc_chr_write(s->chr, (const uint8_t *) "\r", 1);
1182 *q++ = '\n';
1183 } else {
1184 *q++ = keysym;
1185 }
1186 if (s->echo) {
1187 vc_chr_write(s->chr, buf, q - buf);
1188 }
1189 be = s->chr->be;
1190 if (be && be->chr_read) {
1191 qemu_fifo_write(&s->out_fifo, buf, q - buf);
1192 kbd_send_chars(s);
1193 }
1194 break;
1195 }
1196 }
1197
1198 static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
1199 [Q_KEY_CODE_UP] = QEMU_KEY_UP,
1200 [Q_KEY_CODE_DOWN] = QEMU_KEY_DOWN,
1201 [Q_KEY_CODE_RIGHT] = QEMU_KEY_RIGHT,
1202 [Q_KEY_CODE_LEFT] = QEMU_KEY_LEFT,
1203 [Q_KEY_CODE_HOME] = QEMU_KEY_HOME,
1204 [Q_KEY_CODE_END] = QEMU_KEY_END,
1205 [Q_KEY_CODE_PGUP] = QEMU_KEY_PAGEUP,
1206 [Q_KEY_CODE_PGDN] = QEMU_KEY_PAGEDOWN,
1207 [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1208 [Q_KEY_CODE_BACKSPACE] = QEMU_KEY_BACKSPACE,
1209 };
1210
1211 static const int ctrl_qcode_to_keysym[Q_KEY_CODE__MAX] = {
1212 [Q_KEY_CODE_UP] = QEMU_KEY_CTRL_UP,
1213 [Q_KEY_CODE_DOWN] = QEMU_KEY_CTRL_DOWN,
1214 [Q_KEY_CODE_RIGHT] = QEMU_KEY_CTRL_RIGHT,
1215 [Q_KEY_CODE_LEFT] = QEMU_KEY_CTRL_LEFT,
1216 [Q_KEY_CODE_HOME] = QEMU_KEY_CTRL_HOME,
1217 [Q_KEY_CODE_END] = QEMU_KEY_CTRL_END,
1218 [Q_KEY_CODE_PGUP] = QEMU_KEY_CTRL_PAGEUP,
1219 [Q_KEY_CODE_PGDN] = QEMU_KEY_CTRL_PAGEDOWN,
1220 };
1221
1222 bool kbd_put_qcode_console(QemuConsole *s, int qcode, bool ctrl)
1223 {
1224 int keysym;
1225
1226 keysym = ctrl ? ctrl_qcode_to_keysym[qcode] : qcode_to_keysym[qcode];
1227 if (keysym == 0) {
1228 return false;
1229 }
1230 kbd_put_keysym_console(s, keysym);
1231 return true;
1232 }
1233
1234 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1235 {
1236 int i;
1237
1238 for (i = 0; i < len && str[i]; i++) {
1239 kbd_put_keysym_console(s, str[i]);
1240 }
1241 }
1242
1243 void kbd_put_keysym(int keysym)
1244 {
1245 kbd_put_keysym_console(active_console, keysym);
1246 }
1247
1248 static void text_console_invalidate(void *opaque)
1249 {
1250 QemuConsole *s = (QemuConsole *) opaque;
1251
1252 if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1253 text_console_resize(s);
1254 }
1255 console_refresh(s);
1256 }
1257
1258 static void text_console_update(void *opaque, console_ch_t *chardata)
1259 {
1260 QemuConsole *s = (QemuConsole *) opaque;
1261 int i, j, src;
1262
1263 if (s->text_x[0] <= s->text_x[1]) {
1264 src = (s->y_base + s->text_y[0]) * s->width;
1265 chardata += s->text_y[0] * s->width;
1266 for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1267 for (j = 0; j < s->width; j++, src++) {
1268 console_write_ch(chardata ++,
1269 ATTR2CHTYPE(s->cells[src].ch,
1270 s->cells[src].t_attrib.fgcol,
1271 s->cells[src].t_attrib.bgcol,
1272 s->cells[src].t_attrib.bold));
1273 }
1274 dpy_text_update(s, s->text_x[0], s->text_y[0],
1275 s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1276 s->text_x[0] = s->width;
1277 s->text_y[0] = s->height;
1278 s->text_x[1] = 0;
1279 s->text_y[1] = 0;
1280 }
1281 if (s->cursor_invalidate) {
1282 dpy_text_cursor(s, s->x, s->y);
1283 s->cursor_invalidate = 0;
1284 }
1285 }
1286
1287 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1288 uint32_t head)
1289 {
1290 Object *obj;
1291 QemuConsole *s;
1292 int i;
1293
1294 obj = object_new(TYPE_QEMU_CONSOLE);
1295 s = QEMU_CONSOLE(obj);
1296 s->head = head;
1297 object_property_add_link(obj, "device", TYPE_DEVICE,
1298 (Object **)&s->device,
1299 object_property_allow_set_link,
1300 OBJ_PROP_LINK_STRONG,
1301 &error_abort);
1302 object_property_add_uint32_ptr(obj, "head", &s->head,
1303 OBJ_PROP_FLAG_READ, &error_abort);
1304
1305 if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1306 (console_type == GRAPHIC_CONSOLE))) {
1307 active_console = s;
1308 }
1309 s->ds = ds;
1310 s->console_type = console_type;
1311
1312 if (QTAILQ_EMPTY(&consoles)) {
1313 s->index = 0;
1314 QTAILQ_INSERT_TAIL(&consoles, s, next);
1315 } else if (console_type != GRAPHIC_CONSOLE || qdev_hotplug) {
1316 QemuConsole *last = QTAILQ_LAST(&consoles);
1317 s->index = last->index + 1;
1318 QTAILQ_INSERT_TAIL(&consoles, s, next);
1319 } else {
1320 /*
1321 * HACK: Put graphical consoles before text consoles.
1322 *
1323 * Only do that for coldplugged devices. After initial device
1324 * initialization we will not renumber the consoles any more.
1325 */
1326 QemuConsole *c = QTAILQ_FIRST(&consoles);
1327
1328 while (QTAILQ_NEXT(c, next) != NULL &&
1329 c->console_type == GRAPHIC_CONSOLE) {
1330 c = QTAILQ_NEXT(c, next);
1331 }
1332 if (c->console_type == GRAPHIC_CONSOLE) {
1333 /* have no text consoles */
1334 s->index = c->index + 1;
1335 QTAILQ_INSERT_AFTER(&consoles, c, s, next);
1336 } else {
1337 s->index = c->index;
1338 QTAILQ_INSERT_BEFORE(c, s, next);
1339 /* renumber text consoles */
1340 for (i = s->index + 1; c != NULL; c = QTAILQ_NEXT(c, next), i++) {
1341 c->index = i;
1342 }
1343 }
1344 }
1345 return s;
1346 }
1347
1348 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1349 {
1350 qemu_pixman_image_unref(surface->image);
1351 surface->image = NULL;
1352
1353 surface->format = PIXMAN_x8r8g8b8;
1354 surface->image = pixman_image_create_bits(surface->format,
1355 width, height,
1356 NULL, width * 4);
1357 assert(surface->image != NULL);
1358
1359 surface->flags = QEMU_ALLOCATED_FLAG;
1360 }
1361
1362 DisplaySurface *qemu_create_displaysurface(int width, int height)
1363 {
1364 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1365
1366 trace_displaysurface_create(surface, width, height);
1367 qemu_alloc_display(surface, width, height);
1368 return surface;
1369 }
1370
1371 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1372 pixman_format_code_t format,
1373 int linesize, uint8_t *data)
1374 {
1375 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1376
1377 trace_displaysurface_create_from(surface, width, height, format);
1378 surface->format = format;
1379 surface->image = pixman_image_create_bits(surface->format,
1380 width, height,
1381 (void *)data, linesize);
1382 assert(surface->image != NULL);
1383
1384 return surface;
1385 }
1386
1387 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
1388 {
1389 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1390
1391 trace_displaysurface_create_pixman(surface);
1392 surface->format = pixman_image_get_format(image);
1393 surface->image = pixman_image_ref(image);
1394
1395 return surface;
1396 }
1397
1398 DisplaySurface *qemu_create_message_surface(int w, int h,
1399 const char *msg)
1400 {
1401 DisplaySurface *surface = qemu_create_displaysurface(w, h);
1402 pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
1403 pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
1404 pixman_image_t *glyph;
1405 int len, x, y, i;
1406
1407 len = strlen(msg);
1408 x = (w / FONT_WIDTH - len) / 2;
1409 y = (h / FONT_HEIGHT - 1) / 2;
1410 for (i = 0; i < len; i++) {
1411 glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1412 qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1413 x+i, y, FONT_WIDTH, FONT_HEIGHT);
1414 qemu_pixman_image_unref(glyph);
1415 }
1416 return surface;
1417 }
1418
1419 void qemu_free_displaysurface(DisplaySurface *surface)
1420 {
1421 if (surface == NULL) {
1422 return;
1423 }
1424 trace_displaysurface_free(surface);
1425 qemu_pixman_image_unref(surface->image);
1426 g_free(surface);
1427 }
1428
1429 bool console_has_gl(QemuConsole *con)
1430 {
1431 return con->gl != NULL;
1432 }
1433
1434 bool console_has_gl_dmabuf(QemuConsole *con)
1435 {
1436 return con->gl != NULL && con->gl->ops->dpy_gl_scanout_dmabuf != NULL;
1437 }
1438
1439 void register_displaychangelistener(DisplayChangeListener *dcl)
1440 {
1441 static const char nodev[] =
1442 "This VM has no graphic display device.";
1443 static DisplaySurface *dummy;
1444 QemuConsole *con;
1445
1446 assert(!dcl->ds);
1447
1448 if (dcl->ops->dpy_gl_ctx_create) {
1449 /* display has opengl support */
1450 assert(dcl->con);
1451 if (dcl->con->gl) {
1452 fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1453 dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1454 exit(1);
1455 }
1456 dcl->con->gl = dcl;
1457 }
1458
1459 trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1460 dcl->ds = get_alloc_displaystate();
1461 QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1462 gui_setup_refresh(dcl->ds);
1463 if (dcl->con) {
1464 dcl->con->dcls++;
1465 con = dcl->con;
1466 } else {
1467 con = active_console;
1468 }
1469 if (dcl->ops->dpy_gfx_switch) {
1470 if (con) {
1471 dcl->ops->dpy_gfx_switch(dcl, con->surface);
1472 } else {
1473 if (!dummy) {
1474 dummy = qemu_create_message_surface(640, 480, nodev);
1475 }
1476 dcl->ops->dpy_gfx_switch(dcl, dummy);
1477 }
1478 }
1479 text_console_update_cursor(NULL);
1480 }
1481
1482 void update_displaychangelistener(DisplayChangeListener *dcl,
1483 uint64_t interval)
1484 {
1485 DisplayState *ds = dcl->ds;
1486
1487 dcl->update_interval = interval;
1488 if (!ds->refreshing && ds->update_interval > interval) {
1489 timer_mod(ds->gui_timer, ds->last_update + interval);
1490 }
1491 }
1492
1493 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1494 {
1495 DisplayState *ds = dcl->ds;
1496 trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1497 if (dcl->con) {
1498 dcl->con->dcls--;
1499 }
1500 QLIST_REMOVE(dcl, next);
1501 dcl->ds = NULL;
1502 gui_setup_refresh(ds);
1503 }
1504
1505 static void dpy_set_ui_info_timer(void *opaque)
1506 {
1507 QemuConsole *con = opaque;
1508
1509 con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1510 }
1511
1512 bool dpy_ui_info_supported(QemuConsole *con)
1513 {
1514 return con->hw_ops->ui_info != NULL;
1515 }
1516
1517 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1518 {
1519 assert(con != NULL);
1520
1521 if (!dpy_ui_info_supported(con)) {
1522 return -1;
1523 }
1524 if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
1525 /* nothing changed -- ignore */
1526 return 0;
1527 }
1528
1529 /*
1530 * Typically we get a flood of these as the user resizes the window.
1531 * Wait until the dust has settled (one second without updates), then
1532 * go notify the guest.
1533 */
1534 con->ui_info = *info;
1535 timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1536 return 0;
1537 }
1538
1539 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1540 {
1541 DisplayState *s = con->ds;
1542 DisplayChangeListener *dcl;
1543 int width = w;
1544 int height = h;
1545
1546 if (con->surface) {
1547 width = surface_width(con->surface);
1548 height = surface_height(con->surface);
1549 }
1550 x = MAX(x, 0);
1551 y = MAX(y, 0);
1552 x = MIN(x, width);
1553 y = MIN(y, height);
1554 w = MIN(w, width - x);
1555 h = MIN(h, height - y);
1556
1557 if (!qemu_console_is_visible(con)) {
1558 return;
1559 }
1560 QLIST_FOREACH(dcl, &s->listeners, next) {
1561 if (con != (dcl->con ? dcl->con : active_console)) {
1562 continue;
1563 }
1564 if (dcl->ops->dpy_gfx_update) {
1565 dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1566 }
1567 }
1568 }
1569
1570 void dpy_gfx_update_full(QemuConsole *con)
1571 {
1572 if (!con->surface) {
1573 return;
1574 }
1575 dpy_gfx_update(con, 0, 0,
1576 surface_width(con->surface),
1577 surface_height(con->surface));
1578 }
1579
1580 void dpy_gfx_replace_surface(QemuConsole *con,
1581 DisplaySurface *surface)
1582 {
1583 DisplayState *s = con->ds;
1584 DisplaySurface *old_surface = con->surface;
1585 DisplayChangeListener *dcl;
1586
1587 assert(old_surface != surface || surface == NULL);
1588
1589 con->surface = surface;
1590 QLIST_FOREACH(dcl, &s->listeners, next) {
1591 if (con != (dcl->con ? dcl->con : active_console)) {
1592 continue;
1593 }
1594 if (dcl->ops->dpy_gfx_switch) {
1595 dcl->ops->dpy_gfx_switch(dcl, surface);
1596 }
1597 }
1598 qemu_free_displaysurface(old_surface);
1599 }
1600
1601 bool dpy_gfx_check_format(QemuConsole *con,
1602 pixman_format_code_t format)
1603 {
1604 DisplayChangeListener *dcl;
1605 DisplayState *s = con->ds;
1606
1607 QLIST_FOREACH(dcl, &s->listeners, next) {
1608 if (dcl->con && dcl->con != con) {
1609 /* dcl bound to another console -> skip */
1610 continue;
1611 }
1612 if (dcl->ops->dpy_gfx_check_format) {
1613 if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1614 return false;
1615 }
1616 } else {
1617 /* default is to whitelist native 32 bpp only */
1618 if (format != qemu_default_pixman_format(32, true)) {
1619 return false;
1620 }
1621 }
1622 }
1623 return true;
1624 }
1625
1626 static void dpy_refresh(DisplayState *s)
1627 {
1628 DisplayChangeListener *dcl;
1629
1630 QLIST_FOREACH(dcl, &s->listeners, next) {
1631 if (dcl->ops->dpy_refresh) {
1632 dcl->ops->dpy_refresh(dcl);
1633 }
1634 }
1635 }
1636
1637 void dpy_text_cursor(QemuConsole *con, int x, int y)
1638 {
1639 DisplayState *s = con->ds;
1640 DisplayChangeListener *dcl;
1641
1642 if (!qemu_console_is_visible(con)) {
1643 return;
1644 }
1645 QLIST_FOREACH(dcl, &s->listeners, next) {
1646 if (con != (dcl->con ? dcl->con : active_console)) {
1647 continue;
1648 }
1649 if (dcl->ops->dpy_text_cursor) {
1650 dcl->ops->dpy_text_cursor(dcl, x, y);
1651 }
1652 }
1653 }
1654
1655 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1656 {
1657 DisplayState *s = con->ds;
1658 DisplayChangeListener *dcl;
1659
1660 if (!qemu_console_is_visible(con)) {
1661 return;
1662 }
1663 QLIST_FOREACH(dcl, &s->listeners, next) {
1664 if (con != (dcl->con ? dcl->con : active_console)) {
1665 continue;
1666 }
1667 if (dcl->ops->dpy_text_update) {
1668 dcl->ops->dpy_text_update(dcl, x, y, w, h);
1669 }
1670 }
1671 }
1672
1673 void dpy_text_resize(QemuConsole *con, int w, int h)
1674 {
1675 DisplayState *s = con->ds;
1676 DisplayChangeListener *dcl;
1677
1678 if (!qemu_console_is_visible(con)) {
1679 return;
1680 }
1681 QLIST_FOREACH(dcl, &s->listeners, next) {
1682 if (con != (dcl->con ? dcl->con : active_console)) {
1683 continue;
1684 }
1685 if (dcl->ops->dpy_text_resize) {
1686 dcl->ops->dpy_text_resize(dcl, w, h);
1687 }
1688 }
1689 }
1690
1691 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1692 {
1693 DisplayState *s = con->ds;
1694 DisplayChangeListener *dcl;
1695
1696 if (!qemu_console_is_visible(con)) {
1697 return;
1698 }
1699 QLIST_FOREACH(dcl, &s->listeners, next) {
1700 if (con != (dcl->con ? dcl->con : active_console)) {
1701 continue;
1702 }
1703 if (dcl->ops->dpy_mouse_set) {
1704 dcl->ops->dpy_mouse_set(dcl, x, y, on);
1705 }
1706 }
1707 }
1708
1709 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1710 {
1711 DisplayState *s = con->ds;
1712 DisplayChangeListener *dcl;
1713
1714 if (!qemu_console_is_visible(con)) {
1715 return;
1716 }
1717 QLIST_FOREACH(dcl, &s->listeners, next) {
1718 if (con != (dcl->con ? dcl->con : active_console)) {
1719 continue;
1720 }
1721 if (dcl->ops->dpy_cursor_define) {
1722 dcl->ops->dpy_cursor_define(dcl, cursor);
1723 }
1724 }
1725 }
1726
1727 bool dpy_cursor_define_supported(QemuConsole *con)
1728 {
1729 DisplayState *s = con->ds;
1730 DisplayChangeListener *dcl;
1731
1732 QLIST_FOREACH(dcl, &s->listeners, next) {
1733 if (dcl->ops->dpy_cursor_define) {
1734 return true;
1735 }
1736 }
1737 return false;
1738 }
1739
1740 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1741 struct QEMUGLParams *qparams)
1742 {
1743 assert(con->gl);
1744 return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1745 }
1746
1747 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1748 {
1749 assert(con->gl);
1750 con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1751 }
1752
1753 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1754 {
1755 assert(con->gl);
1756 return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1757 }
1758
1759 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1760 {
1761 assert(con->gl);
1762 return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1763 }
1764
1765 void dpy_gl_scanout_disable(QemuConsole *con)
1766 {
1767 assert(con->gl);
1768 if (con->gl->ops->dpy_gl_scanout_disable) {
1769 con->gl->ops->dpy_gl_scanout_disable(con->gl);
1770 } else {
1771 con->gl->ops->dpy_gl_scanout_texture(con->gl, 0, false, 0, 0,
1772 0, 0, 0, 0);
1773 }
1774 }
1775
1776 void dpy_gl_scanout_texture(QemuConsole *con,
1777 uint32_t backing_id,
1778 bool backing_y_0_top,
1779 uint32_t backing_width,
1780 uint32_t backing_height,
1781 uint32_t x, uint32_t y,
1782 uint32_t width, uint32_t height)
1783 {
1784 assert(con->gl);
1785 con->gl->ops->dpy_gl_scanout_texture(con->gl, backing_id,
1786 backing_y_0_top,
1787 backing_width, backing_height,
1788 x, y, width, height);
1789 }
1790
1791 void dpy_gl_scanout_dmabuf(QemuConsole *con,
1792 QemuDmaBuf *dmabuf)
1793 {
1794 assert(con->gl);
1795 con->gl->ops->dpy_gl_scanout_dmabuf(con->gl, dmabuf);
1796 }
1797
1798 void dpy_gl_cursor_dmabuf(QemuConsole *con, QemuDmaBuf *dmabuf,
1799 bool have_hot, uint32_t hot_x, uint32_t hot_y)
1800 {
1801 assert(con->gl);
1802
1803 if (con->gl->ops->dpy_gl_cursor_dmabuf) {
1804 con->gl->ops->dpy_gl_cursor_dmabuf(con->gl, dmabuf,
1805 have_hot, hot_x, hot_y);
1806 }
1807 }
1808
1809 void dpy_gl_cursor_position(QemuConsole *con,
1810 uint32_t pos_x, uint32_t pos_y)
1811 {
1812 assert(con->gl);
1813
1814 if (con->gl->ops->dpy_gl_cursor_position) {
1815 con->gl->ops->dpy_gl_cursor_position(con->gl, pos_x, pos_y);
1816 }
1817 }
1818
1819 void dpy_gl_release_dmabuf(QemuConsole *con,
1820 QemuDmaBuf *dmabuf)
1821 {
1822 assert(con->gl);
1823
1824 if (con->gl->ops->dpy_gl_release_dmabuf) {
1825 con->gl->ops->dpy_gl_release_dmabuf(con->gl, dmabuf);
1826 }
1827 }
1828
1829 void dpy_gl_update(QemuConsole *con,
1830 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1831 {
1832 assert(con->gl);
1833 con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1834 }
1835
1836 /***********************************************************/
1837 /* register display */
1838
1839 /* console.c internal use only */
1840 static DisplayState *get_alloc_displaystate(void)
1841 {
1842 if (!display_state) {
1843 display_state = g_new0(DisplayState, 1);
1844 cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1845 text_console_update_cursor, NULL);
1846 }
1847 return display_state;
1848 }
1849
1850 /*
1851 * Called by main(), after creating QemuConsoles
1852 * and before initializing ui (sdl/vnc/...).
1853 */
1854 DisplayState *init_displaystate(void)
1855 {
1856 gchar *name;
1857 QemuConsole *con;
1858
1859 get_alloc_displaystate();
1860 QTAILQ_FOREACH(con, &consoles, next) {
1861 if (con->console_type != GRAPHIC_CONSOLE &&
1862 con->ds == NULL) {
1863 text_console_do_init(con->chr, display_state);
1864 }
1865
1866 /* Hook up into the qom tree here (not in new_console()), once
1867 * all QemuConsoles are created and the order / numbering
1868 * doesn't change any more */
1869 name = g_strdup_printf("console[%d]", con->index);
1870 object_property_add_child(container_get(object_get_root(), "/backend"),
1871 name, OBJECT(con), &error_abort);
1872 g_free(name);
1873 }
1874
1875 return display_state;
1876 }
1877
1878 void graphic_console_set_hwops(QemuConsole *con,
1879 const GraphicHwOps *hw_ops,
1880 void *opaque)
1881 {
1882 con->hw_ops = hw_ops;
1883 con->hw = opaque;
1884 }
1885
1886 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1887 const GraphicHwOps *hw_ops,
1888 void *opaque)
1889 {
1890 static const char noinit[] =
1891 "Guest has not initialized the display (yet).";
1892 int width = 640;
1893 int height = 480;
1894 QemuConsole *s;
1895 DisplayState *ds;
1896 DisplaySurface *surface;
1897
1898 ds = get_alloc_displaystate();
1899 s = qemu_console_lookup_unused();
1900 if (s) {
1901 trace_console_gfx_reuse(s->index);
1902 if (s->surface) {
1903 width = surface_width(s->surface);
1904 height = surface_height(s->surface);
1905 }
1906 } else {
1907 trace_console_gfx_new();
1908 s = new_console(ds, GRAPHIC_CONSOLE, head);
1909 s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1910 dpy_set_ui_info_timer, s);
1911 }
1912 graphic_console_set_hwops(s, hw_ops, opaque);
1913 if (dev) {
1914 object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1915 &error_abort);
1916 }
1917
1918 surface = qemu_create_message_surface(width, height, noinit);
1919 dpy_gfx_replace_surface(s, surface);
1920 return s;
1921 }
1922
1923 static const GraphicHwOps unused_ops = {
1924 /* no callbacks */
1925 };
1926
1927 void graphic_console_close(QemuConsole *con)
1928 {
1929 static const char unplugged[] =
1930 "Guest display has been unplugged";
1931 DisplaySurface *surface;
1932 int width = 640;
1933 int height = 480;
1934
1935 if (con->surface) {
1936 width = surface_width(con->surface);
1937 height = surface_height(con->surface);
1938 }
1939
1940 trace_console_gfx_close(con->index);
1941 object_property_set_link(OBJECT(con), NULL, "device", &error_abort);
1942 graphic_console_set_hwops(con, &unused_ops, NULL);
1943
1944 if (con->gl) {
1945 dpy_gl_scanout_disable(con);
1946 }
1947 surface = qemu_create_message_surface(width, height, unplugged);
1948 dpy_gfx_replace_surface(con, surface);
1949 }
1950
1951 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1952 {
1953 QemuConsole *con;
1954
1955 QTAILQ_FOREACH(con, &consoles, next) {
1956 if (con->index == index) {
1957 return con;
1958 }
1959 }
1960 return NULL;
1961 }
1962
1963 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1964 {
1965 QemuConsole *con;
1966 Object *obj;
1967 uint32_t h;
1968
1969 QTAILQ_FOREACH(con, &consoles, next) {
1970 obj = object_property_get_link(OBJECT(con),
1971 "device", &error_abort);
1972 if (DEVICE(obj) != dev) {
1973 continue;
1974 }
1975 h = object_property_get_uint(OBJECT(con),
1976 "head", &error_abort);
1977 if (h != head) {
1978 continue;
1979 }
1980 return con;
1981 }
1982 return NULL;
1983 }
1984
1985 QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
1986 uint32_t head, Error **errp)
1987 {
1988 DeviceState *dev;
1989 QemuConsole *con;
1990
1991 dev = qdev_find_recursive(sysbus_get_default(), device_id);
1992 if (dev == NULL) {
1993 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1994 "Device '%s' not found", device_id);
1995 return NULL;
1996 }
1997
1998 con = qemu_console_lookup_by_device(dev, head);
1999 if (con == NULL) {
2000 error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
2001 device_id, head);
2002 return NULL;
2003 }
2004
2005 return con;
2006 }
2007
2008 QemuConsole *qemu_console_lookup_unused(void)
2009 {
2010 QemuConsole *con;
2011 Object *obj;
2012
2013 QTAILQ_FOREACH(con, &consoles, next) {
2014 if (con->hw_ops != &unused_ops) {
2015 continue;
2016 }
2017 obj = object_property_get_link(OBJECT(con),
2018 "device", &error_abort);
2019 if (obj != NULL) {
2020 continue;
2021 }
2022 return con;
2023 }
2024 return NULL;
2025 }
2026
2027 bool qemu_console_is_visible(QemuConsole *con)
2028 {
2029 return (con == active_console) || (con->dcls > 0);
2030 }
2031
2032 bool qemu_console_is_graphic(QemuConsole *con)
2033 {
2034 if (con == NULL) {
2035 con = active_console;
2036 }
2037 return con && (con->console_type == GRAPHIC_CONSOLE);
2038 }
2039
2040 bool qemu_console_is_fixedsize(QemuConsole *con)
2041 {
2042 if (con == NULL) {
2043 con = active_console;
2044 }
2045 return con && (con->console_type != TEXT_CONSOLE);
2046 }
2047
2048 bool qemu_console_is_gl_blocked(QemuConsole *con)
2049 {
2050 assert(con != NULL);
2051 return con->gl_block;
2052 }
2053
2054 char *qemu_console_get_label(QemuConsole *con)
2055 {
2056 if (con->console_type == GRAPHIC_CONSOLE) {
2057 if (con->device) {
2058 return g_strdup(object_get_typename(con->device));
2059 }
2060 return g_strdup("VGA");
2061 } else {
2062 if (con->chr && con->chr->label) {
2063 return g_strdup(con->chr->label);
2064 }
2065 return g_strdup_printf("vc%d", con->index);
2066 }
2067 }
2068
2069 int qemu_console_get_index(QemuConsole *con)
2070 {
2071 if (con == NULL) {
2072 con = active_console;
2073 }
2074 return con ? con->index : -1;
2075 }
2076
2077 uint32_t qemu_console_get_head(QemuConsole *con)
2078 {
2079 if (con == NULL) {
2080 con = active_console;
2081 }
2082 return con ? con->head : -1;
2083 }
2084
2085 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
2086 {
2087 assert(con != NULL);
2088 return &con->ui_info;
2089 }
2090
2091 int qemu_console_get_width(QemuConsole *con, int fallback)
2092 {
2093 if (con == NULL) {
2094 con = active_console;
2095 }
2096 return con ? surface_width(con->surface) : fallback;
2097 }
2098
2099 int qemu_console_get_height(QemuConsole *con, int fallback)
2100 {
2101 if (con == NULL) {
2102 con = active_console;
2103 }
2104 return con ? surface_height(con->surface) : fallback;
2105 }
2106
2107 static void vc_chr_set_echo(Chardev *chr, bool echo)
2108 {
2109 VCChardev *drv = VC_CHARDEV(chr);
2110 QemuConsole *s = drv->console;
2111
2112 s->echo = echo;
2113 }
2114
2115 static void text_console_update_cursor_timer(void)
2116 {
2117 timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
2118 + CONSOLE_CURSOR_PERIOD / 2);
2119 }
2120
2121 static void text_console_update_cursor(void *opaque)
2122 {
2123 QemuConsole *s;
2124 int count = 0;
2125
2126 cursor_visible_phase = !cursor_visible_phase;
2127
2128 QTAILQ_FOREACH(s, &consoles, next) {
2129 if (qemu_console_is_graphic(s) ||
2130 !qemu_console_is_visible(s)) {
2131 continue;
2132 }
2133 count++;
2134 graphic_hw_invalidate(s);
2135 }
2136
2137 if (count) {
2138 text_console_update_cursor_timer();
2139 }
2140 }
2141
2142 static const GraphicHwOps text_console_ops = {
2143 .invalidate = text_console_invalidate,
2144 .text_update = text_console_update,
2145 };
2146
2147 static void text_console_do_init(Chardev *chr, DisplayState *ds)
2148 {
2149 VCChardev *drv = VC_CHARDEV(chr);
2150 QemuConsole *s = drv->console;
2151 int g_width = 80 * FONT_WIDTH;
2152 int g_height = 24 * FONT_HEIGHT;
2153
2154 s->out_fifo.buf = s->out_fifo_buf;
2155 s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
2156 s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
2157 s->ds = ds;
2158
2159 s->y_displayed = 0;
2160 s->y_base = 0;
2161 s->total_height = DEFAULT_BACKSCROLL;
2162 s->x = 0;
2163 s->y = 0;
2164 if (!s->surface) {
2165 if (active_console && active_console->surface) {
2166 g_width = surface_width(active_console->surface);
2167 g_height = surface_height(active_console->surface);
2168 }
2169 s->surface = qemu_create_displaysurface(g_width, g_height);
2170 }
2171
2172 s->hw_ops = &text_console_ops;
2173 s->hw = s;
2174
2175 /* Set text attribute defaults */
2176 s->t_attrib_default.bold = 0;
2177 s->t_attrib_default.uline = 0;
2178 s->t_attrib_default.blink = 0;
2179 s->t_attrib_default.invers = 0;
2180 s->t_attrib_default.unvisible = 0;
2181 s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
2182 s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
2183 /* set current text attributes to default */
2184 s->t_attrib = s->t_attrib_default;
2185 text_console_resize(s);
2186
2187 if (chr->label) {
2188 char msg[128];
2189 int len;
2190
2191 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
2192 len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
2193 vc_chr_write(chr, (uint8_t *)msg, len);
2194 s->t_attrib = s->t_attrib_default;
2195 }
2196
2197 qemu_chr_be_event(chr, CHR_EVENT_OPENED);
2198 }
2199
2200 static void vc_chr_open(Chardev *chr,
2201 ChardevBackend *backend,
2202 bool *be_opened,
2203 Error **errp)
2204 {
2205 ChardevVC *vc = backend->u.vc.data;
2206 VCChardev *drv = VC_CHARDEV(chr);
2207 QemuConsole *s;
2208 unsigned width = 0;
2209 unsigned height = 0;
2210
2211 if (vc->has_width) {
2212 width = vc->width;
2213 } else if (vc->has_cols) {
2214 width = vc->cols * FONT_WIDTH;
2215 }
2216
2217 if (vc->has_height) {
2218 height = vc->height;
2219 } else if (vc->has_rows) {
2220 height = vc->rows * FONT_HEIGHT;
2221 }
2222
2223 trace_console_txt_new(width, height);
2224 if (width == 0 || height == 0) {
2225 s = new_console(NULL, TEXT_CONSOLE, 0);
2226 } else {
2227 s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
2228 s->surface = qemu_create_displaysurface(width, height);
2229 }
2230
2231 if (!s) {
2232 error_setg(errp, "cannot create text console");
2233 return;
2234 }
2235
2236 s->chr = chr;
2237 drv->console = s;
2238
2239 if (display_state) {
2240 text_console_do_init(chr, display_state);
2241 }
2242
2243 /* console/chardev init sometimes completes elsewhere in a 2nd
2244 * stage, so defer OPENED events until they are fully initialized
2245 */
2246 *be_opened = false;
2247 }
2248
2249 void qemu_console_resize(QemuConsole *s, int width, int height)
2250 {
2251 DisplaySurface *surface;
2252
2253 assert(s->console_type == GRAPHIC_CONSOLE);
2254
2255 if (s->surface && (s->surface->flags & QEMU_ALLOCATED_FLAG) &&
2256 pixman_image_get_width(s->surface->image) == width &&
2257 pixman_image_get_height(s->surface->image) == height) {
2258 return;
2259 }
2260
2261 surface = qemu_create_displaysurface(width, height);
2262 dpy_gfx_replace_surface(s, surface);
2263 }
2264
2265 DisplaySurface *qemu_console_surface(QemuConsole *console)
2266 {
2267 return console->surface;
2268 }
2269
2270 PixelFormat qemu_default_pixelformat(int bpp)
2271 {
2272 pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2273 PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2274 return pf;
2275 }
2276
2277 static QemuDisplay *dpys[DISPLAY_TYPE__MAX];
2278
2279 void qemu_display_register(QemuDisplay *ui)
2280 {
2281 assert(ui->type < DISPLAY_TYPE__MAX);
2282 dpys[ui->type] = ui;
2283 }
2284
2285 bool qemu_display_find_default(DisplayOptions *opts)
2286 {
2287 static DisplayType prio[] = {
2288 DISPLAY_TYPE_GTK,
2289 DISPLAY_TYPE_SDL,
2290 DISPLAY_TYPE_COCOA
2291 };
2292 int i;
2293
2294 for (i = 0; i < ARRAY_SIZE(prio); i++) {
2295 if (dpys[prio[i]] == NULL) {
2296 ui_module_load_one(DisplayType_str(prio[i]));
2297 }
2298 if (dpys[prio[i]] == NULL) {
2299 continue;
2300 }
2301 opts->type = prio[i];
2302 return true;
2303 }
2304 return false;
2305 }
2306
2307 void qemu_display_early_init(DisplayOptions *opts)
2308 {
2309 assert(opts->type < DISPLAY_TYPE__MAX);
2310 if (opts->type == DISPLAY_TYPE_NONE) {
2311 return;
2312 }
2313 if (dpys[opts->type] == NULL) {
2314 ui_module_load_one(DisplayType_str(opts->type));
2315 }
2316 if (dpys[opts->type] == NULL) {
2317 error_report("Display '%s' is not available.",
2318 DisplayType_str(opts->type));
2319 exit(1);
2320 }
2321 if (dpys[opts->type]->early_init) {
2322 dpys[opts->type]->early_init(opts);
2323 }
2324 }
2325
2326 void qemu_display_init(DisplayState *ds, DisplayOptions *opts)
2327 {
2328 assert(opts->type < DISPLAY_TYPE__MAX);
2329 if (opts->type == DISPLAY_TYPE_NONE) {
2330 return;
2331 }
2332 assert(dpys[opts->type] != NULL);
2333 dpys[opts->type]->init(ds, opts);
2334 }
2335
2336 void qemu_display_help(void)
2337 {
2338 int idx;
2339
2340 printf("Available display backend types:\n");
2341 printf("none\n");
2342 for (idx = DISPLAY_TYPE_NONE; idx < DISPLAY_TYPE__MAX; idx++) {
2343 if (!dpys[idx]) {
2344 ui_module_load_one(DisplayType_str(idx));
2345 }
2346 if (dpys[idx]) {
2347 printf("%s\n", DisplayType_str(dpys[idx]->type));
2348 }
2349 }
2350 }
2351
2352 void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp)
2353 {
2354 int val;
2355 ChardevVC *vc;
2356
2357 backend->type = CHARDEV_BACKEND_KIND_VC;
2358 vc = backend->u.vc.data = g_new0(ChardevVC, 1);
2359 qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
2360
2361 val = qemu_opt_get_number(opts, "width", 0);
2362 if (val != 0) {
2363 vc->has_width = true;
2364 vc->width = val;
2365 }
2366
2367 val = qemu_opt_get_number(opts, "height", 0);
2368 if (val != 0) {
2369 vc->has_height = true;
2370 vc->height = val;
2371 }
2372
2373 val = qemu_opt_get_number(opts, "cols", 0);
2374 if (val != 0) {
2375 vc->has_cols = true;
2376 vc->cols = val;
2377 }
2378
2379 val = qemu_opt_get_number(opts, "rows", 0);
2380 if (val != 0) {
2381 vc->has_rows = true;
2382 vc->rows = val;
2383 }
2384 }
2385
2386 static const TypeInfo qemu_console_info = {
2387 .name = TYPE_QEMU_CONSOLE,
2388 .parent = TYPE_OBJECT,
2389 .instance_size = sizeof(QemuConsole),
2390 .class_size = sizeof(QemuConsoleClass),
2391 };
2392
2393 static void char_vc_class_init(ObjectClass *oc, void *data)
2394 {
2395 ChardevClass *cc = CHARDEV_CLASS(oc);
2396
2397 cc->parse = qemu_chr_parse_vc;
2398 cc->open = vc_chr_open;
2399 cc->chr_write = vc_chr_write;
2400 cc->chr_set_echo = vc_chr_set_echo;
2401 }
2402
2403 static const TypeInfo char_vc_type_info = {
2404 .name = TYPE_CHARDEV_VC,
2405 .parent = TYPE_CHARDEV,
2406 .instance_size = sizeof(VCChardev),
2407 .class_init = char_vc_class_init,
2408 };
2409
2410 void qemu_console_early_init(void)
2411 {
2412 /* set the default vc driver */
2413 if (!object_class_by_name(TYPE_CHARDEV_VC)) {
2414 type_register(&char_vc_type_info);
2415 }
2416 }
2417
2418 static void register_types(void)
2419 {
2420 type_register_static(&qemu_console_info);
2421 }
2422
2423 type_init(register_types);
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