xref: /qemu/ui/console.c (revision 814bb12a)
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 #include "qemu/osdep.h"
25 #include "qemu-common.h"
26 #include "ui/console.h"
27 #include "hw/qdev-core.h"
28 #include "qemu/timer.h"
29 #include "qmp-commands.h"
30 #include "sysemu/char.h"
31 #include "trace.h"
32 #include "exec/memory.h"
33 
34 #define DEFAULT_BACKSCROLL 512
35 #define CONSOLE_CURSOR_PERIOD 500
36 
37 typedef struct TextAttributes {
38     uint8_t fgcol:4;
39     uint8_t bgcol:4;
40     uint8_t bold:1;
41     uint8_t uline:1;
42     uint8_t blink:1;
43     uint8_t invers:1;
44     uint8_t unvisible:1;
45 } TextAttributes;
46 
47 typedef struct TextCell {
48     uint8_t ch;
49     TextAttributes t_attrib;
50 } TextCell;
51 
52 #define MAX_ESC_PARAMS 3
53 
54 enum TTYState {
55     TTY_STATE_NORM,
56     TTY_STATE_ESC,
57     TTY_STATE_CSI,
58 };
59 
60 typedef struct QEMUFIFO {
61     uint8_t *buf;
62     int buf_size;
63     int count, wptr, rptr;
64 } QEMUFIFO;
65 
66 static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
67 {
68     int l, len;
69 
70     l = f->buf_size - f->count;
71     if (len1 > l)
72         len1 = l;
73     len = len1;
74     while (len > 0) {
75         l = f->buf_size - f->wptr;
76         if (l > len)
77             l = len;
78         memcpy(f->buf + f->wptr, buf, l);
79         f->wptr += l;
80         if (f->wptr >= f->buf_size)
81             f->wptr = 0;
82         buf += l;
83         len -= l;
84     }
85     f->count += len1;
86     return len1;
87 }
88 
89 static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
90 {
91     int l, len;
92 
93     if (len1 > f->count)
94         len1 = f->count;
95     len = len1;
96     while (len > 0) {
97         l = f->buf_size - f->rptr;
98         if (l > len)
99             l = len;
100         memcpy(buf, f->buf + f->rptr, l);
101         f->rptr += l;
102         if (f->rptr >= f->buf_size)
103             f->rptr = 0;
104         buf += l;
105         len -= l;
106     }
107     f->count -= len1;
108     return len1;
109 }
110 
111 typedef enum {
112     GRAPHIC_CONSOLE,
113     TEXT_CONSOLE,
114     TEXT_CONSOLE_FIXED_SIZE
115 } console_type_t;
116 
117 struct QemuConsole {
118     Object parent;
119 
120     int index;
121     console_type_t console_type;
122     DisplayState *ds;
123     DisplaySurface *surface;
124     int dcls;
125     DisplayChangeListener *gl;
126     bool gl_block;
127 
128     /* Graphic console state.  */
129     Object *device;
130     uint32_t head;
131     QemuUIInfo ui_info;
132     QEMUTimer *ui_timer;
133     const GraphicHwOps *hw_ops;
134     void *hw;
135 
136     /* Text console state */
137     int width;
138     int height;
139     int total_height;
140     int backscroll_height;
141     int x, y;
142     int x_saved, y_saved;
143     int y_displayed;
144     int y_base;
145     TextAttributes t_attrib_default; /* default text attributes */
146     TextAttributes t_attrib; /* currently active text attributes */
147     TextCell *cells;
148     int text_x[2], text_y[2], cursor_invalidate;
149     int echo;
150 
151     int update_x0;
152     int update_y0;
153     int update_x1;
154     int update_y1;
155 
156     enum TTYState state;
157     int esc_params[MAX_ESC_PARAMS];
158     int nb_esc_params;
159 
160     CharDriverState *chr;
161     /* fifo for key pressed */
162     QEMUFIFO out_fifo;
163     uint8_t out_fifo_buf[16];
164     QEMUTimer *kbd_timer;
165 };
166 
167 struct DisplayState {
168     QEMUTimer *gui_timer;
169     uint64_t last_update;
170     uint64_t update_interval;
171     bool refreshing;
172     bool have_gfx;
173     bool have_text;
174 
175     QLIST_HEAD(, DisplayChangeListener) listeners;
176 };
177 
178 static DisplayState *display_state;
179 static QemuConsole *active_console;
180 static QemuConsole **consoles;
181 static int nb_consoles = 0;
182 static bool cursor_visible_phase;
183 static QEMUTimer *cursor_timer;
184 
185 static void text_console_do_init(CharDriverState *chr, DisplayState *ds);
186 static void dpy_refresh(DisplayState *s);
187 static DisplayState *get_alloc_displaystate(void);
188 static void text_console_update_cursor_timer(void);
189 static void text_console_update_cursor(void *opaque);
190 
191 static void gui_update(void *opaque)
192 {
193     uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
194     uint64_t dcl_interval;
195     DisplayState *ds = opaque;
196     DisplayChangeListener *dcl;
197     int i;
198 
199     ds->refreshing = true;
200     dpy_refresh(ds);
201     ds->refreshing = false;
202 
203     QLIST_FOREACH(dcl, &ds->listeners, next) {
204         dcl_interval = dcl->update_interval ?
205             dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
206         if (interval > dcl_interval) {
207             interval = dcl_interval;
208         }
209     }
210     if (ds->update_interval != interval) {
211         ds->update_interval = interval;
212         for (i = 0; i < nb_consoles; i++) {
213             if (consoles[i]->hw_ops->update_interval) {
214                 consoles[i]->hw_ops->update_interval(consoles[i]->hw, interval);
215             }
216         }
217         trace_console_refresh(interval);
218     }
219     ds->last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
220     timer_mod(ds->gui_timer, ds->last_update + interval);
221 }
222 
223 static void gui_setup_refresh(DisplayState *ds)
224 {
225     DisplayChangeListener *dcl;
226     bool need_timer = false;
227     bool have_gfx = false;
228     bool have_text = false;
229 
230     QLIST_FOREACH(dcl, &ds->listeners, next) {
231         if (dcl->ops->dpy_refresh != NULL) {
232             need_timer = true;
233         }
234         if (dcl->ops->dpy_gfx_update != NULL) {
235             have_gfx = true;
236         }
237         if (dcl->ops->dpy_text_update != NULL) {
238             have_text = true;
239         }
240     }
241 
242     if (need_timer && ds->gui_timer == NULL) {
243         ds->gui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, gui_update, ds);
244         timer_mod(ds->gui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
245     }
246     if (!need_timer && ds->gui_timer != NULL) {
247         timer_del(ds->gui_timer);
248         timer_free(ds->gui_timer);
249         ds->gui_timer = NULL;
250     }
251 
252     ds->have_gfx = have_gfx;
253     ds->have_text = have_text;
254 }
255 
256 void graphic_hw_update(QemuConsole *con)
257 {
258     if (!con) {
259         con = active_console;
260     }
261     if (con && con->hw_ops->gfx_update) {
262         con->hw_ops->gfx_update(con->hw);
263     }
264 }
265 
266 void graphic_hw_gl_block(QemuConsole *con, bool block)
267 {
268     assert(con != NULL);
269 
270     con->gl_block = block;
271     if (con->hw_ops->gl_block) {
272         con->hw_ops->gl_block(con->hw, block);
273     }
274 }
275 
276 void graphic_hw_invalidate(QemuConsole *con)
277 {
278     if (!con) {
279         con = active_console;
280     }
281     if (con && con->hw_ops->invalidate) {
282         con->hw_ops->invalidate(con->hw);
283     }
284 }
285 
286 static void ppm_save(const char *filename, DisplaySurface *ds,
287                      Error **errp)
288 {
289     int width = pixman_image_get_width(ds->image);
290     int height = pixman_image_get_height(ds->image);
291     int fd;
292     FILE *f;
293     int y;
294     int ret;
295     pixman_image_t *linebuf;
296 
297     trace_ppm_save(filename, ds);
298     fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
299     if (fd == -1) {
300         error_setg(errp, "failed to open file '%s': %s", filename,
301                    strerror(errno));
302         return;
303     }
304     f = fdopen(fd, "wb");
305     ret = fprintf(f, "P6\n%d %d\n%d\n", width, height, 255);
306     if (ret < 0) {
307         linebuf = NULL;
308         goto write_err;
309     }
310     linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
311     for (y = 0; y < height; y++) {
312         qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
313         clearerr(f);
314         ret = fwrite(pixman_image_get_data(linebuf), 1,
315                      pixman_image_get_stride(linebuf), f);
316         (void)ret;
317         if (ferror(f)) {
318             goto write_err;
319         }
320     }
321 
322 out:
323     qemu_pixman_image_unref(linebuf);
324     fclose(f);
325     return;
326 
327 write_err:
328     error_setg(errp, "failed to write to file '%s': %s", filename,
329                strerror(errno));
330     unlink(filename);
331     goto out;
332 }
333 
334 void qmp_screendump(const char *filename, Error **errp)
335 {
336     QemuConsole *con = qemu_console_lookup_by_index(0);
337     DisplaySurface *surface;
338 
339     if (con == NULL) {
340         error_setg(errp, "There is no QemuConsole I can screendump from.");
341         return;
342     }
343 
344     graphic_hw_update(con);
345     surface = qemu_console_surface(con);
346     ppm_save(filename, surface, errp);
347 }
348 
349 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
350 {
351     if (!con) {
352         con = active_console;
353     }
354     if (con && con->hw_ops->text_update) {
355         con->hw_ops->text_update(con->hw, chardata);
356     }
357 }
358 
359 static void vga_fill_rect(QemuConsole *con,
360                           int posx, int posy, int width, int height,
361                           pixman_color_t color)
362 {
363     DisplaySurface *surface = qemu_console_surface(con);
364     pixman_rectangle16_t rect = {
365         .x = posx, .y = posy, .width = width, .height = height
366     };
367 
368     pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
369                                  &color, 1, &rect);
370 }
371 
372 /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
373 static void vga_bitblt(QemuConsole *con,
374                        int xs, int ys, int xd, int yd, int w, int h)
375 {
376     DisplaySurface *surface = qemu_console_surface(con);
377 
378     pixman_image_composite(PIXMAN_OP_SRC,
379                            surface->image, NULL, surface->image,
380                            xs, ys, 0, 0, xd, yd, w, h);
381 }
382 
383 /***********************************************************/
384 /* basic char display */
385 
386 #define FONT_HEIGHT 16
387 #define FONT_WIDTH 8
388 
389 #include "vgafont.h"
390 
391 #define QEMU_RGB(r, g, b)                                               \
392     { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
393 
394 static const pixman_color_t color_table_rgb[2][8] = {
395     {   /* dark */
396         [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
397         [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
398         [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
399         [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
400         [QEMU_COLOR_RED]     = QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
401         [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
402         [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
403         [QEMU_COLOR_WHITE]   = QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
404     },
405     {   /* bright */
406         [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
407         [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
408         [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xff, 0x00),  /* green */
409         [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
410         [QEMU_COLOR_RED]     = QEMU_RGB(0xff, 0x00, 0x00),  /* red */
411         [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
412         [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
413         [QEMU_COLOR_WHITE]   = QEMU_RGB(0xff, 0xff, 0xff),  /* white */
414     }
415 };
416 
417 static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
418                           TextAttributes *t_attrib)
419 {
420     static pixman_image_t *glyphs[256];
421     DisplaySurface *surface = qemu_console_surface(s);
422     pixman_color_t fgcol, bgcol;
423 
424     if (t_attrib->invers) {
425         bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
426         fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
427     } else {
428         fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
429         bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
430     }
431 
432     if (!glyphs[ch]) {
433         glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
434     }
435     qemu_pixman_glyph_render(glyphs[ch], surface->image,
436                              &fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
437 }
438 
439 static void text_console_resize(QemuConsole *s)
440 {
441     TextCell *cells, *c, *c1;
442     int w1, x, y, last_width;
443 
444     last_width = s->width;
445     s->width = surface_width(s->surface) / FONT_WIDTH;
446     s->height = surface_height(s->surface) / FONT_HEIGHT;
447 
448     w1 = last_width;
449     if (s->width < w1)
450         w1 = s->width;
451 
452     cells = g_new(TextCell, s->width * s->total_height);
453     for(y = 0; y < s->total_height; y++) {
454         c = &cells[y * s->width];
455         if (w1 > 0) {
456             c1 = &s->cells[y * last_width];
457             for(x = 0; x < w1; x++) {
458                 *c++ = *c1++;
459             }
460         }
461         for(x = w1; x < s->width; x++) {
462             c->ch = ' ';
463             c->t_attrib = s->t_attrib_default;
464             c++;
465         }
466     }
467     g_free(s->cells);
468     s->cells = cells;
469 }
470 
471 static inline void text_update_xy(QemuConsole *s, int x, int y)
472 {
473     s->text_x[0] = MIN(s->text_x[0], x);
474     s->text_x[1] = MAX(s->text_x[1], x);
475     s->text_y[0] = MIN(s->text_y[0], y);
476     s->text_y[1] = MAX(s->text_y[1], y);
477 }
478 
479 static void invalidate_xy(QemuConsole *s, int x, int y)
480 {
481     if (!qemu_console_is_visible(s)) {
482         return;
483     }
484     if (s->update_x0 > x * FONT_WIDTH)
485         s->update_x0 = x * FONT_WIDTH;
486     if (s->update_y0 > y * FONT_HEIGHT)
487         s->update_y0 = y * FONT_HEIGHT;
488     if (s->update_x1 < (x + 1) * FONT_WIDTH)
489         s->update_x1 = (x + 1) * FONT_WIDTH;
490     if (s->update_y1 < (y + 1) * FONT_HEIGHT)
491         s->update_y1 = (y + 1) * FONT_HEIGHT;
492 }
493 
494 static void update_xy(QemuConsole *s, int x, int y)
495 {
496     TextCell *c;
497     int y1, y2;
498 
499     if (s->ds->have_text) {
500         text_update_xy(s, x, y);
501     }
502 
503     y1 = (s->y_base + y) % s->total_height;
504     y2 = y1 - s->y_displayed;
505     if (y2 < 0) {
506         y2 += s->total_height;
507     }
508     if (y2 < s->height) {
509         c = &s->cells[y1 * s->width + x];
510         vga_putcharxy(s, x, y2, c->ch,
511                       &(c->t_attrib));
512         invalidate_xy(s, x, y2);
513     }
514 }
515 
516 static void console_show_cursor(QemuConsole *s, int show)
517 {
518     TextCell *c;
519     int y, y1;
520     int x = s->x;
521 
522     if (s->ds->have_text) {
523         s->cursor_invalidate = 1;
524     }
525 
526     if (x >= s->width) {
527         x = s->width - 1;
528     }
529     y1 = (s->y_base + s->y) % s->total_height;
530     y = y1 - s->y_displayed;
531     if (y < 0) {
532         y += s->total_height;
533     }
534     if (y < s->height) {
535         c = &s->cells[y1 * s->width + x];
536         if (show && cursor_visible_phase) {
537             TextAttributes t_attrib = s->t_attrib_default;
538             t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
539             vga_putcharxy(s, x, y, c->ch, &t_attrib);
540         } else {
541             vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
542         }
543         invalidate_xy(s, x, y);
544     }
545 }
546 
547 static void console_refresh(QemuConsole *s)
548 {
549     DisplaySurface *surface = qemu_console_surface(s);
550     TextCell *c;
551     int x, y, y1;
552 
553     if (s->ds->have_text) {
554         s->text_x[0] = 0;
555         s->text_y[0] = 0;
556         s->text_x[1] = s->width - 1;
557         s->text_y[1] = s->height - 1;
558         s->cursor_invalidate = 1;
559     }
560 
561     vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
562                   color_table_rgb[0][QEMU_COLOR_BLACK]);
563     y1 = s->y_displayed;
564     for (y = 0; y < s->height; y++) {
565         c = s->cells + y1 * s->width;
566         for (x = 0; x < s->width; x++) {
567             vga_putcharxy(s, x, y, c->ch,
568                           &(c->t_attrib));
569             c++;
570         }
571         if (++y1 == s->total_height) {
572             y1 = 0;
573         }
574     }
575     console_show_cursor(s, 1);
576     dpy_gfx_update(s, 0, 0,
577                    surface_width(surface), surface_height(surface));
578 }
579 
580 static void console_scroll(QemuConsole *s, int ydelta)
581 {
582     int i, y1;
583 
584     if (ydelta > 0) {
585         for(i = 0; i < ydelta; i++) {
586             if (s->y_displayed == s->y_base)
587                 break;
588             if (++s->y_displayed == s->total_height)
589                 s->y_displayed = 0;
590         }
591     } else {
592         ydelta = -ydelta;
593         i = s->backscroll_height;
594         if (i > s->total_height - s->height)
595             i = s->total_height - s->height;
596         y1 = s->y_base - i;
597         if (y1 < 0)
598             y1 += s->total_height;
599         for(i = 0; i < ydelta; i++) {
600             if (s->y_displayed == y1)
601                 break;
602             if (--s->y_displayed < 0)
603                 s->y_displayed = s->total_height - 1;
604         }
605     }
606     console_refresh(s);
607 }
608 
609 static void console_put_lf(QemuConsole *s)
610 {
611     TextCell *c;
612     int x, y1;
613 
614     s->y++;
615     if (s->y >= s->height) {
616         s->y = s->height - 1;
617 
618         if (s->y_displayed == s->y_base) {
619             if (++s->y_displayed == s->total_height)
620                 s->y_displayed = 0;
621         }
622         if (++s->y_base == s->total_height)
623             s->y_base = 0;
624         if (s->backscroll_height < s->total_height)
625             s->backscroll_height++;
626         y1 = (s->y_base + s->height - 1) % s->total_height;
627         c = &s->cells[y1 * s->width];
628         for(x = 0; x < s->width; x++) {
629             c->ch = ' ';
630             c->t_attrib = s->t_attrib_default;
631             c++;
632         }
633         if (s->y_displayed == s->y_base) {
634             if (s->ds->have_text) {
635                 s->text_x[0] = 0;
636                 s->text_y[0] = 0;
637                 s->text_x[1] = s->width - 1;
638                 s->text_y[1] = s->height - 1;
639             }
640 
641             vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
642                        s->width * FONT_WIDTH,
643                        (s->height - 1) * FONT_HEIGHT);
644             vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
645                           s->width * FONT_WIDTH, FONT_HEIGHT,
646                           color_table_rgb[0][s->t_attrib_default.bgcol]);
647             s->update_x0 = 0;
648             s->update_y0 = 0;
649             s->update_x1 = s->width * FONT_WIDTH;
650             s->update_y1 = s->height * FONT_HEIGHT;
651         }
652     }
653 }
654 
655 /* Set console attributes depending on the current escape codes.
656  * NOTE: I know this code is not very efficient (checking every color for it
657  * self) but it is more readable and better maintainable.
658  */
659 static void console_handle_escape(QemuConsole *s)
660 {
661     int i;
662 
663     for (i=0; i<s->nb_esc_params; i++) {
664         switch (s->esc_params[i]) {
665             case 0: /* reset all console attributes to default */
666                 s->t_attrib = s->t_attrib_default;
667                 break;
668             case 1:
669                 s->t_attrib.bold = 1;
670                 break;
671             case 4:
672                 s->t_attrib.uline = 1;
673                 break;
674             case 5:
675                 s->t_attrib.blink = 1;
676                 break;
677             case 7:
678                 s->t_attrib.invers = 1;
679                 break;
680             case 8:
681                 s->t_attrib.unvisible = 1;
682                 break;
683             case 22:
684                 s->t_attrib.bold = 0;
685                 break;
686             case 24:
687                 s->t_attrib.uline = 0;
688                 break;
689             case 25:
690                 s->t_attrib.blink = 0;
691                 break;
692             case 27:
693                 s->t_attrib.invers = 0;
694                 break;
695             case 28:
696                 s->t_attrib.unvisible = 0;
697                 break;
698             /* set foreground color */
699             case 30:
700                 s->t_attrib.fgcol = QEMU_COLOR_BLACK;
701                 break;
702             case 31:
703                 s->t_attrib.fgcol = QEMU_COLOR_RED;
704                 break;
705             case 32:
706                 s->t_attrib.fgcol = QEMU_COLOR_GREEN;
707                 break;
708             case 33:
709                 s->t_attrib.fgcol = QEMU_COLOR_YELLOW;
710                 break;
711             case 34:
712                 s->t_attrib.fgcol = QEMU_COLOR_BLUE;
713                 break;
714             case 35:
715                 s->t_attrib.fgcol = QEMU_COLOR_MAGENTA;
716                 break;
717             case 36:
718                 s->t_attrib.fgcol = QEMU_COLOR_CYAN;
719                 break;
720             case 37:
721                 s->t_attrib.fgcol = QEMU_COLOR_WHITE;
722                 break;
723             /* set background color */
724             case 40:
725                 s->t_attrib.bgcol = QEMU_COLOR_BLACK;
726                 break;
727             case 41:
728                 s->t_attrib.bgcol = QEMU_COLOR_RED;
729                 break;
730             case 42:
731                 s->t_attrib.bgcol = QEMU_COLOR_GREEN;
732                 break;
733             case 43:
734                 s->t_attrib.bgcol = QEMU_COLOR_YELLOW;
735                 break;
736             case 44:
737                 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
738                 break;
739             case 45:
740                 s->t_attrib.bgcol = QEMU_COLOR_MAGENTA;
741                 break;
742             case 46:
743                 s->t_attrib.bgcol = QEMU_COLOR_CYAN;
744                 break;
745             case 47:
746                 s->t_attrib.bgcol = QEMU_COLOR_WHITE;
747                 break;
748         }
749     }
750 }
751 
752 static void console_clear_xy(QemuConsole *s, int x, int y)
753 {
754     int y1 = (s->y_base + y) % s->total_height;
755     TextCell *c = &s->cells[y1 * s->width + x];
756     c->ch = ' ';
757     c->t_attrib = s->t_attrib_default;
758     update_xy(s, x, y);
759 }
760 
761 static void console_put_one(QemuConsole *s, int ch)
762 {
763     TextCell *c;
764     int y1;
765     if (s->x >= s->width) {
766         /* line wrap */
767         s->x = 0;
768         console_put_lf(s);
769     }
770     y1 = (s->y_base + s->y) % s->total_height;
771     c = &s->cells[y1 * s->width + s->x];
772     c->ch = ch;
773     c->t_attrib = s->t_attrib;
774     update_xy(s, s->x, s->y);
775     s->x++;
776 }
777 
778 static void console_respond_str(QemuConsole *s, const char *buf)
779 {
780     while (*buf) {
781         console_put_one(s, *buf);
782         buf++;
783     }
784 }
785 
786 /* set cursor, checking bounds */
787 static void set_cursor(QemuConsole *s, int x, int y)
788 {
789     if (x < 0) {
790         x = 0;
791     }
792     if (y < 0) {
793         y = 0;
794     }
795     if (y >= s->height) {
796         y = s->height - 1;
797     }
798     if (x >= s->width) {
799         x = s->width - 1;
800     }
801 
802     s->x = x;
803     s->y = y;
804 }
805 
806 static void console_putchar(QemuConsole *s, int ch)
807 {
808     int i;
809     int x, y;
810     char response[40];
811 
812     switch(s->state) {
813     case TTY_STATE_NORM:
814         switch(ch) {
815         case '\r':  /* carriage return */
816             s->x = 0;
817             break;
818         case '\n':  /* newline */
819             console_put_lf(s);
820             break;
821         case '\b':  /* backspace */
822             if (s->x > 0)
823                 s->x--;
824             break;
825         case '\t':  /* tabspace */
826             if (s->x + (8 - (s->x % 8)) > s->width) {
827                 s->x = 0;
828                 console_put_lf(s);
829             } else {
830                 s->x = s->x + (8 - (s->x % 8));
831             }
832             break;
833         case '\a':  /* alert aka. bell */
834             /* TODO: has to be implemented */
835             break;
836         case 14:
837             /* SI (shift in), character set 0 (ignored) */
838             break;
839         case 15:
840             /* SO (shift out), character set 1 (ignored) */
841             break;
842         case 27:    /* esc (introducing an escape sequence) */
843             s->state = TTY_STATE_ESC;
844             break;
845         default:
846             console_put_one(s, ch);
847             break;
848         }
849         break;
850     case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
851         if (ch == '[') {
852             for(i=0;i<MAX_ESC_PARAMS;i++)
853                 s->esc_params[i] = 0;
854             s->nb_esc_params = 0;
855             s->state = TTY_STATE_CSI;
856         } else {
857             s->state = TTY_STATE_NORM;
858         }
859         break;
860     case TTY_STATE_CSI: /* handle escape sequence parameters */
861         if (ch >= '0' && ch <= '9') {
862             if (s->nb_esc_params < MAX_ESC_PARAMS) {
863                 int *param = &s->esc_params[s->nb_esc_params];
864                 int digit = (ch - '0');
865 
866                 *param = (*param <= (INT_MAX - digit) / 10) ?
867                          *param * 10 + digit : INT_MAX;
868             }
869         } else {
870             if (s->nb_esc_params < MAX_ESC_PARAMS)
871                 s->nb_esc_params++;
872             if (ch == ';')
873                 break;
874             trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
875                                       ch, s->nb_esc_params);
876             s->state = TTY_STATE_NORM;
877             switch(ch) {
878             case 'A':
879                 /* move cursor up */
880                 if (s->esc_params[0] == 0) {
881                     s->esc_params[0] = 1;
882                 }
883                 set_cursor(s, s->x, s->y - s->esc_params[0]);
884                 break;
885             case 'B':
886                 /* move cursor down */
887                 if (s->esc_params[0] == 0) {
888                     s->esc_params[0] = 1;
889                 }
890                 set_cursor(s, s->x, s->y + s->esc_params[0]);
891                 break;
892             case 'C':
893                 /* move cursor right */
894                 if (s->esc_params[0] == 0) {
895                     s->esc_params[0] = 1;
896                 }
897                 set_cursor(s, s->x + s->esc_params[0], s->y);
898                 break;
899             case 'D':
900                 /* move cursor left */
901                 if (s->esc_params[0] == 0) {
902                     s->esc_params[0] = 1;
903                 }
904                 set_cursor(s, s->x - s->esc_params[0], s->y);
905                 break;
906             case 'G':
907                 /* move cursor to column */
908                 set_cursor(s, s->esc_params[0] - 1, s->y);
909                 break;
910             case 'f':
911             case 'H':
912                 /* move cursor to row, column */
913                 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
914                 break;
915             case 'J':
916                 switch (s->esc_params[0]) {
917                 case 0:
918                     /* clear to end of screen */
919                     for (y = s->y; y < s->height; y++) {
920                         for (x = 0; x < s->width; x++) {
921                             if (y == s->y && x < s->x) {
922                                 continue;
923                             }
924                             console_clear_xy(s, x, y);
925                         }
926                     }
927                     break;
928                 case 1:
929                     /* clear from beginning of screen */
930                     for (y = 0; y <= s->y; y++) {
931                         for (x = 0; x < s->width; x++) {
932                             if (y == s->y && x > s->x) {
933                                 break;
934                             }
935                             console_clear_xy(s, x, y);
936                         }
937                     }
938                     break;
939                 case 2:
940                     /* clear entire screen */
941                     for (y = 0; y <= s->height; y++) {
942                         for (x = 0; x < s->width; x++) {
943                             console_clear_xy(s, x, y);
944                         }
945                     }
946                     break;
947                 }
948                 break;
949             case 'K':
950                 switch (s->esc_params[0]) {
951                 case 0:
952                     /* clear to eol */
953                     for(x = s->x; x < s->width; x++) {
954                         console_clear_xy(s, x, s->y);
955                     }
956                     break;
957                 case 1:
958                     /* clear from beginning of line */
959                     for (x = 0; x <= s->x; x++) {
960                         console_clear_xy(s, x, s->y);
961                     }
962                     break;
963                 case 2:
964                     /* clear entire line */
965                     for(x = 0; x < s->width; x++) {
966                         console_clear_xy(s, x, s->y);
967                     }
968                     break;
969                 }
970                 break;
971             case 'm':
972                 console_handle_escape(s);
973                 break;
974             case 'n':
975                 switch (s->esc_params[0]) {
976                 case 5:
977                     /* report console status (always succeed)*/
978                     console_respond_str(s, "\033[0n");
979                     break;
980                 case 6:
981                     /* report cursor position */
982                     sprintf(response, "\033[%d;%dR",
983                            (s->y_base + s->y) % s->total_height + 1,
984                             s->x + 1);
985                     console_respond_str(s, response);
986                     break;
987                 }
988                 break;
989             case 's':
990                 /* save cursor position */
991                 s->x_saved = s->x;
992                 s->y_saved = s->y;
993                 break;
994             case 'u':
995                 /* restore cursor position */
996                 s->x = s->x_saved;
997                 s->y = s->y_saved;
998                 break;
999             default:
1000                 trace_console_putchar_unhandled(ch);
1001                 break;
1002             }
1003             break;
1004         }
1005     }
1006 }
1007 
1008 void console_select(unsigned int index)
1009 {
1010     DisplayChangeListener *dcl;
1011     QemuConsole *s;
1012 
1013     trace_console_select(index);
1014     s = qemu_console_lookup_by_index(index);
1015     if (s) {
1016         DisplayState *ds = s->ds;
1017 
1018         active_console = s;
1019         if (ds->have_gfx) {
1020             QLIST_FOREACH(dcl, &ds->listeners, next) {
1021                 if (dcl->con != NULL) {
1022                     continue;
1023                 }
1024                 if (dcl->ops->dpy_gfx_switch) {
1025                     dcl->ops->dpy_gfx_switch(dcl, s->surface);
1026                 }
1027             }
1028             dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1029                            surface_height(s->surface));
1030         }
1031         if (ds->have_text) {
1032             dpy_text_resize(s, s->width, s->height);
1033         }
1034         text_console_update_cursor(NULL);
1035     }
1036 }
1037 
1038 static int console_puts(CharDriverState *chr, const uint8_t *buf, int len)
1039 {
1040     QemuConsole *s = chr->opaque;
1041     int i;
1042 
1043     s->update_x0 = s->width * FONT_WIDTH;
1044     s->update_y0 = s->height * FONT_HEIGHT;
1045     s->update_x1 = 0;
1046     s->update_y1 = 0;
1047     console_show_cursor(s, 0);
1048     for(i = 0; i < len; i++) {
1049         console_putchar(s, buf[i]);
1050     }
1051     console_show_cursor(s, 1);
1052     if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1053         dpy_gfx_update(s, s->update_x0, s->update_y0,
1054                        s->update_x1 - s->update_x0,
1055                        s->update_y1 - s->update_y0);
1056     }
1057     return len;
1058 }
1059 
1060 static void kbd_send_chars(void *opaque)
1061 {
1062     QemuConsole *s = opaque;
1063     int len;
1064     uint8_t buf[16];
1065 
1066     len = qemu_chr_be_can_write(s->chr);
1067     if (len > s->out_fifo.count)
1068         len = s->out_fifo.count;
1069     if (len > 0) {
1070         if (len > sizeof(buf))
1071             len = sizeof(buf);
1072         qemu_fifo_read(&s->out_fifo, buf, len);
1073         qemu_chr_be_write(s->chr, buf, len);
1074     }
1075     /* characters are pending: we send them a bit later (XXX:
1076        horrible, should change char device API) */
1077     if (s->out_fifo.count > 0) {
1078         timer_mod(s->kbd_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1);
1079     }
1080 }
1081 
1082 /* called when an ascii key is pressed */
1083 void kbd_put_keysym_console(QemuConsole *s, int keysym)
1084 {
1085     uint8_t buf[16], *q;
1086     CharBackend *be;
1087     int c;
1088 
1089     if (!s || (s->console_type == GRAPHIC_CONSOLE))
1090         return;
1091 
1092     switch(keysym) {
1093     case QEMU_KEY_CTRL_UP:
1094         console_scroll(s, -1);
1095         break;
1096     case QEMU_KEY_CTRL_DOWN:
1097         console_scroll(s, 1);
1098         break;
1099     case QEMU_KEY_CTRL_PAGEUP:
1100         console_scroll(s, -10);
1101         break;
1102     case QEMU_KEY_CTRL_PAGEDOWN:
1103         console_scroll(s, 10);
1104         break;
1105     default:
1106         /* convert the QEMU keysym to VT100 key string */
1107         q = buf;
1108         if (keysym >= 0xe100 && keysym <= 0xe11f) {
1109             *q++ = '\033';
1110             *q++ = '[';
1111             c = keysym - 0xe100;
1112             if (c >= 10)
1113                 *q++ = '0' + (c / 10);
1114             *q++ = '0' + (c % 10);
1115             *q++ = '~';
1116         } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1117             *q++ = '\033';
1118             *q++ = '[';
1119             *q++ = keysym & 0xff;
1120         } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1121             console_puts(s->chr, (const uint8_t *) "\r", 1);
1122             *q++ = '\n';
1123         } else {
1124             *q++ = keysym;
1125         }
1126         if (s->echo) {
1127             console_puts(s->chr, buf, q - buf);
1128         }
1129         be = s->chr->be;
1130         if (be && be->chr_read) {
1131             qemu_fifo_write(&s->out_fifo, buf, q - buf);
1132             kbd_send_chars(s);
1133         }
1134         break;
1135     }
1136 }
1137 
1138 static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
1139     [Q_KEY_CODE_UP]     = QEMU_KEY_UP,
1140     [Q_KEY_CODE_DOWN]   = QEMU_KEY_DOWN,
1141     [Q_KEY_CODE_RIGHT]  = QEMU_KEY_RIGHT,
1142     [Q_KEY_CODE_LEFT]   = QEMU_KEY_LEFT,
1143     [Q_KEY_CODE_HOME]   = QEMU_KEY_HOME,
1144     [Q_KEY_CODE_END]    = QEMU_KEY_END,
1145     [Q_KEY_CODE_PGUP]   = QEMU_KEY_PAGEUP,
1146     [Q_KEY_CODE_PGDN]   = QEMU_KEY_PAGEDOWN,
1147     [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1148     [Q_KEY_CODE_BACKSPACE] = QEMU_KEY_BACKSPACE,
1149 };
1150 
1151 bool kbd_put_qcode_console(QemuConsole *s, int qcode)
1152 {
1153     int keysym;
1154 
1155     keysym = qcode_to_keysym[qcode];
1156     if (keysym == 0) {
1157         return false;
1158     }
1159     kbd_put_keysym_console(s, keysym);
1160     return true;
1161 }
1162 
1163 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1164 {
1165     int i;
1166 
1167     for (i = 0; i < len && str[i]; i++) {
1168         kbd_put_keysym_console(s, str[i]);
1169     }
1170 }
1171 
1172 void kbd_put_keysym(int keysym)
1173 {
1174     kbd_put_keysym_console(active_console, keysym);
1175 }
1176 
1177 static void text_console_invalidate(void *opaque)
1178 {
1179     QemuConsole *s = (QemuConsole *) opaque;
1180 
1181     if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1182         text_console_resize(s);
1183     }
1184     console_refresh(s);
1185 }
1186 
1187 static void text_console_update(void *opaque, console_ch_t *chardata)
1188 {
1189     QemuConsole *s = (QemuConsole *) opaque;
1190     int i, j, src;
1191 
1192     if (s->text_x[0] <= s->text_x[1]) {
1193         src = (s->y_base + s->text_y[0]) * s->width;
1194         chardata += s->text_y[0] * s->width;
1195         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1196             for (j = 0; j < s->width; j++, src++) {
1197                 console_write_ch(chardata ++,
1198                                  ATTR2CHTYPE(s->cells[src].ch,
1199                                              s->cells[src].t_attrib.fgcol,
1200                                              s->cells[src].t_attrib.bgcol,
1201                                              s->cells[src].t_attrib.bold));
1202             }
1203         dpy_text_update(s, s->text_x[0], s->text_y[0],
1204                         s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1205         s->text_x[0] = s->width;
1206         s->text_y[0] = s->height;
1207         s->text_x[1] = 0;
1208         s->text_y[1] = 0;
1209     }
1210     if (s->cursor_invalidate) {
1211         dpy_text_cursor(s, s->x, s->y);
1212         s->cursor_invalidate = 0;
1213     }
1214 }
1215 
1216 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1217                                 uint32_t head)
1218 {
1219     Object *obj;
1220     QemuConsole *s;
1221     int i;
1222 
1223     obj = object_new(TYPE_QEMU_CONSOLE);
1224     s = QEMU_CONSOLE(obj);
1225     s->head = head;
1226     object_property_add_link(obj, "device", TYPE_DEVICE,
1227                              (Object **)&s->device,
1228                              object_property_allow_set_link,
1229                              OBJ_PROP_LINK_UNREF_ON_RELEASE,
1230                              &error_abort);
1231     object_property_add_uint32_ptr(obj, "head",
1232                                    &s->head, &error_abort);
1233 
1234     if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1235         (console_type == GRAPHIC_CONSOLE))) {
1236         active_console = s;
1237     }
1238     s->ds = ds;
1239     s->console_type = console_type;
1240 
1241     consoles = g_realloc(consoles, sizeof(*consoles) * (nb_consoles+1));
1242     if (console_type != GRAPHIC_CONSOLE) {
1243         s->index = nb_consoles;
1244         consoles[nb_consoles++] = s;
1245     } else {
1246         /* HACK: Put graphical consoles before text consoles.  */
1247         for (i = nb_consoles; i > 0; i--) {
1248             if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
1249                 break;
1250             consoles[i] = consoles[i - 1];
1251             consoles[i]->index = i;
1252         }
1253         s->index = i;
1254         consoles[i] = s;
1255         nb_consoles++;
1256     }
1257     return s;
1258 }
1259 
1260 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1261 {
1262     qemu_pixman_image_unref(surface->image);
1263     surface->image = NULL;
1264 
1265     surface->format = PIXMAN_x8r8g8b8;
1266     surface->image = pixman_image_create_bits(surface->format,
1267                                               width, height,
1268                                               NULL, width * 4);
1269     assert(surface->image != NULL);
1270 
1271     surface->flags = QEMU_ALLOCATED_FLAG;
1272 }
1273 
1274 DisplaySurface *qemu_create_displaysurface(int width, int height)
1275 {
1276     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1277 
1278     trace_displaysurface_create(surface, width, height);
1279     qemu_alloc_display(surface, width, height);
1280     return surface;
1281 }
1282 
1283 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1284                                                 pixman_format_code_t format,
1285                                                 int linesize, uint8_t *data)
1286 {
1287     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1288 
1289     trace_displaysurface_create_from(surface, width, height, format);
1290     surface->format = format;
1291     surface->image = pixman_image_create_bits(surface->format,
1292                                               width, height,
1293                                               (void *)data, linesize);
1294     assert(surface->image != NULL);
1295 
1296     return surface;
1297 }
1298 
1299 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
1300 {
1301     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1302 
1303     trace_displaysurface_create_pixman(surface);
1304     surface->format = pixman_image_get_format(image);
1305     surface->image = pixman_image_ref(image);
1306 
1307     return surface;
1308 }
1309 
1310 static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image,
1311                                                void *unused)
1312 {
1313     void *data = pixman_image_get_data(image);
1314     uint32_t size = pixman_image_get_stride(image) *
1315         pixman_image_get_height(image);
1316     cpu_physical_memory_unmap(data, size, 0, 0);
1317 }
1318 
1319 DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
1320                                                     pixman_format_code_t format,
1321                                                     int linesize, uint64_t addr)
1322 {
1323     DisplaySurface *surface;
1324     hwaddr size;
1325     void *data;
1326 
1327     if (linesize == 0) {
1328         linesize = width * PIXMAN_FORMAT_BPP(format) / 8;
1329     }
1330 
1331     size = (hwaddr)linesize * height;
1332     data = cpu_physical_memory_map(addr, &size, 0);
1333     if (size != (hwaddr)linesize * height) {
1334         cpu_physical_memory_unmap(data, size, 0, 0);
1335         return NULL;
1336     }
1337 
1338     surface = qemu_create_displaysurface_from
1339         (width, height, format, linesize, data);
1340     pixman_image_set_destroy_function
1341         (surface->image, qemu_unmap_displaysurface_guestmem, NULL);
1342 
1343     return surface;
1344 }
1345 
1346 static DisplaySurface *qemu_create_message_surface(int w, int h,
1347                                                    const char *msg)
1348 {
1349     DisplaySurface *surface = qemu_create_displaysurface(w, h);
1350     pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
1351     pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
1352     pixman_image_t *glyph;
1353     int len, x, y, i;
1354 
1355     len = strlen(msg);
1356     x = (w / FONT_WIDTH  - len) / 2;
1357     y = (h / FONT_HEIGHT - 1)   / 2;
1358     for (i = 0; i < len; i++) {
1359         glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1360         qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1361                                  x+i, y, FONT_WIDTH, FONT_HEIGHT);
1362         qemu_pixman_image_unref(glyph);
1363     }
1364     return surface;
1365 }
1366 
1367 void qemu_free_displaysurface(DisplaySurface *surface)
1368 {
1369     if (surface == NULL) {
1370         return;
1371     }
1372     trace_displaysurface_free(surface);
1373     qemu_pixman_image_unref(surface->image);
1374     g_free(surface);
1375 }
1376 
1377 bool console_has_gl(QemuConsole *con)
1378 {
1379     return con->gl != NULL;
1380 }
1381 
1382 void register_displaychangelistener(DisplayChangeListener *dcl)
1383 {
1384     static const char nodev[] =
1385         "This VM has no graphic display device.";
1386     static DisplaySurface *dummy;
1387     QemuConsole *con;
1388 
1389     if (dcl->ops->dpy_gl_ctx_create) {
1390         /* display has opengl support */
1391         assert(dcl->con);
1392         if (dcl->con->gl) {
1393             fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1394                     dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1395             exit(1);
1396         }
1397         dcl->con->gl = dcl;
1398     }
1399 
1400     trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1401     dcl->ds = get_alloc_displaystate();
1402     QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1403     gui_setup_refresh(dcl->ds);
1404     if (dcl->con) {
1405         dcl->con->dcls++;
1406         con = dcl->con;
1407     } else {
1408         con = active_console;
1409     }
1410     if (dcl->ops->dpy_gfx_switch) {
1411         if (con) {
1412             dcl->ops->dpy_gfx_switch(dcl, con->surface);
1413         } else {
1414             if (!dummy) {
1415                 dummy = qemu_create_message_surface(640, 480, nodev);
1416             }
1417             dcl->ops->dpy_gfx_switch(dcl, dummy);
1418         }
1419     }
1420     text_console_update_cursor(NULL);
1421 }
1422 
1423 void update_displaychangelistener(DisplayChangeListener *dcl,
1424                                   uint64_t interval)
1425 {
1426     DisplayState *ds = dcl->ds;
1427 
1428     dcl->update_interval = interval;
1429     if (!ds->refreshing && ds->update_interval > interval) {
1430         timer_mod(ds->gui_timer, ds->last_update + interval);
1431     }
1432 }
1433 
1434 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1435 {
1436     DisplayState *ds = dcl->ds;
1437     trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1438     if (dcl->con) {
1439         dcl->con->dcls--;
1440     }
1441     QLIST_REMOVE(dcl, next);
1442     gui_setup_refresh(ds);
1443 }
1444 
1445 static void dpy_set_ui_info_timer(void *opaque)
1446 {
1447     QemuConsole *con = opaque;
1448 
1449     con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1450 }
1451 
1452 bool dpy_ui_info_supported(QemuConsole *con)
1453 {
1454     return con->hw_ops->ui_info != NULL;
1455 }
1456 
1457 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1458 {
1459     assert(con != NULL);
1460 
1461     if (!dpy_ui_info_supported(con)) {
1462         return -1;
1463     }
1464     if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
1465         /* nothing changed -- ignore */
1466         return 0;
1467     }
1468 
1469     /*
1470      * Typically we get a flood of these as the user resizes the window.
1471      * Wait until the dust has settled (one second without updates), then
1472      * go notify the guest.
1473      */
1474     con->ui_info = *info;
1475     timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1476     return 0;
1477 }
1478 
1479 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1480 {
1481     DisplayState *s = con->ds;
1482     DisplayChangeListener *dcl;
1483     int width = w;
1484     int height = h;
1485 
1486     if (con->surface) {
1487         width = surface_width(con->surface);
1488         height = surface_height(con->surface);
1489     }
1490     x = MAX(x, 0);
1491     y = MAX(y, 0);
1492     x = MIN(x, width);
1493     y = MIN(y, height);
1494     w = MIN(w, width - x);
1495     h = MIN(h, height - y);
1496 
1497     if (!qemu_console_is_visible(con)) {
1498         return;
1499     }
1500     QLIST_FOREACH(dcl, &s->listeners, next) {
1501         if (con != (dcl->con ? dcl->con : active_console)) {
1502             continue;
1503         }
1504         if (dcl->ops->dpy_gfx_update) {
1505             dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1506         }
1507     }
1508 }
1509 
1510 void dpy_gfx_replace_surface(QemuConsole *con,
1511                              DisplaySurface *surface)
1512 {
1513     DisplayState *s = con->ds;
1514     DisplaySurface *old_surface = con->surface;
1515     DisplayChangeListener *dcl;
1516 
1517     con->surface = surface;
1518     QLIST_FOREACH(dcl, &s->listeners, next) {
1519         if (con != (dcl->con ? dcl->con : active_console)) {
1520             continue;
1521         }
1522         if (dcl->ops->dpy_gfx_switch) {
1523             dcl->ops->dpy_gfx_switch(dcl, surface);
1524         }
1525     }
1526     qemu_free_displaysurface(old_surface);
1527 }
1528 
1529 bool dpy_gfx_check_format(QemuConsole *con,
1530                           pixman_format_code_t format)
1531 {
1532     DisplayChangeListener *dcl;
1533     DisplayState *s = con->ds;
1534 
1535     QLIST_FOREACH(dcl, &s->listeners, next) {
1536         if (dcl->con && dcl->con != con) {
1537             /* dcl bound to another console -> skip */
1538             continue;
1539         }
1540         if (dcl->ops->dpy_gfx_check_format) {
1541             if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1542                 return false;
1543             }
1544         } else {
1545             /* default is to whitelist native 32 bpp only */
1546             if (format != qemu_default_pixman_format(32, true)) {
1547                 return false;
1548             }
1549         }
1550     }
1551     return true;
1552 }
1553 
1554 static void dpy_refresh(DisplayState *s)
1555 {
1556     DisplayChangeListener *dcl;
1557 
1558     QLIST_FOREACH(dcl, &s->listeners, next) {
1559         if (dcl->ops->dpy_refresh) {
1560             dcl->ops->dpy_refresh(dcl);
1561         }
1562     }
1563 }
1564 
1565 void dpy_gfx_copy(QemuConsole *con, int src_x, int src_y,
1566                   int dst_x, int dst_y, int w, int h)
1567 {
1568     DisplayState *s = con->ds;
1569     DisplayChangeListener *dcl;
1570 
1571     if (!qemu_console_is_visible(con)) {
1572         return;
1573     }
1574     QLIST_FOREACH(dcl, &s->listeners, next) {
1575         if (con != (dcl->con ? dcl->con : active_console)) {
1576             continue;
1577         }
1578         if (dcl->ops->dpy_gfx_copy) {
1579             dcl->ops->dpy_gfx_copy(dcl, src_x, src_y, dst_x, dst_y, w, h);
1580         } else { /* TODO */
1581             dcl->ops->dpy_gfx_update(dcl, dst_x, dst_y, w, h);
1582         }
1583     }
1584 }
1585 
1586 void dpy_text_cursor(QemuConsole *con, int x, int y)
1587 {
1588     DisplayState *s = con->ds;
1589     DisplayChangeListener *dcl;
1590 
1591     if (!qemu_console_is_visible(con)) {
1592         return;
1593     }
1594     QLIST_FOREACH(dcl, &s->listeners, next) {
1595         if (con != (dcl->con ? dcl->con : active_console)) {
1596             continue;
1597         }
1598         if (dcl->ops->dpy_text_cursor) {
1599             dcl->ops->dpy_text_cursor(dcl, x, y);
1600         }
1601     }
1602 }
1603 
1604 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1605 {
1606     DisplayState *s = con->ds;
1607     DisplayChangeListener *dcl;
1608 
1609     if (!qemu_console_is_visible(con)) {
1610         return;
1611     }
1612     QLIST_FOREACH(dcl, &s->listeners, next) {
1613         if (con != (dcl->con ? dcl->con : active_console)) {
1614             continue;
1615         }
1616         if (dcl->ops->dpy_text_update) {
1617             dcl->ops->dpy_text_update(dcl, x, y, w, h);
1618         }
1619     }
1620 }
1621 
1622 void dpy_text_resize(QemuConsole *con, int w, int h)
1623 {
1624     DisplayState *s = con->ds;
1625     DisplayChangeListener *dcl;
1626 
1627     if (!qemu_console_is_visible(con)) {
1628         return;
1629     }
1630     QLIST_FOREACH(dcl, &s->listeners, next) {
1631         if (con != (dcl->con ? dcl->con : active_console)) {
1632             continue;
1633         }
1634         if (dcl->ops->dpy_text_resize) {
1635             dcl->ops->dpy_text_resize(dcl, w, h);
1636         }
1637     }
1638 }
1639 
1640 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1641 {
1642     DisplayState *s = con->ds;
1643     DisplayChangeListener *dcl;
1644 
1645     if (!qemu_console_is_visible(con)) {
1646         return;
1647     }
1648     QLIST_FOREACH(dcl, &s->listeners, next) {
1649         if (con != (dcl->con ? dcl->con : active_console)) {
1650             continue;
1651         }
1652         if (dcl->ops->dpy_mouse_set) {
1653             dcl->ops->dpy_mouse_set(dcl, x, y, on);
1654         }
1655     }
1656 }
1657 
1658 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1659 {
1660     DisplayState *s = con->ds;
1661     DisplayChangeListener *dcl;
1662 
1663     if (!qemu_console_is_visible(con)) {
1664         return;
1665     }
1666     QLIST_FOREACH(dcl, &s->listeners, next) {
1667         if (con != (dcl->con ? dcl->con : active_console)) {
1668             continue;
1669         }
1670         if (dcl->ops->dpy_cursor_define) {
1671             dcl->ops->dpy_cursor_define(dcl, cursor);
1672         }
1673     }
1674 }
1675 
1676 bool dpy_cursor_define_supported(QemuConsole *con)
1677 {
1678     DisplayState *s = con->ds;
1679     DisplayChangeListener *dcl;
1680 
1681     QLIST_FOREACH(dcl, &s->listeners, next) {
1682         if (dcl->ops->dpy_cursor_define) {
1683             return true;
1684         }
1685     }
1686     return false;
1687 }
1688 
1689 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1690                                 struct QEMUGLParams *qparams)
1691 {
1692     assert(con->gl);
1693     return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1694 }
1695 
1696 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1697 {
1698     assert(con->gl);
1699     con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1700 }
1701 
1702 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1703 {
1704     assert(con->gl);
1705     return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1706 }
1707 
1708 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1709 {
1710     assert(con->gl);
1711     return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1712 }
1713 
1714 void dpy_gl_scanout(QemuConsole *con,
1715                     uint32_t backing_id, bool backing_y_0_top,
1716                     uint32_t backing_width, uint32_t backing_height,
1717                     uint32_t x, uint32_t y, uint32_t width, uint32_t height)
1718 {
1719     assert(con->gl);
1720     con->gl->ops->dpy_gl_scanout(con->gl, backing_id,
1721                                  backing_y_0_top,
1722                                  backing_width, backing_height,
1723                                  x, y, width, height);
1724 }
1725 
1726 void dpy_gl_update(QemuConsole *con,
1727                    uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1728 {
1729     assert(con->gl);
1730     con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1731 }
1732 
1733 /***********************************************************/
1734 /* register display */
1735 
1736 /* console.c internal use only */
1737 static DisplayState *get_alloc_displaystate(void)
1738 {
1739     if (!display_state) {
1740         display_state = g_new0(DisplayState, 1);
1741         cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1742                                     text_console_update_cursor, NULL);
1743     }
1744     return display_state;
1745 }
1746 
1747 /*
1748  * Called by main(), after creating QemuConsoles
1749  * and before initializing ui (sdl/vnc/...).
1750  */
1751 DisplayState *init_displaystate(void)
1752 {
1753     gchar *name;
1754     int i;
1755 
1756     get_alloc_displaystate();
1757     for (i = 0; i < nb_consoles; i++) {
1758         if (consoles[i]->console_type != GRAPHIC_CONSOLE &&
1759             consoles[i]->ds == NULL) {
1760             text_console_do_init(consoles[i]->chr, display_state);
1761         }
1762 
1763         /* Hook up into the qom tree here (not in new_console()), once
1764          * all QemuConsoles are created and the order / numbering
1765          * doesn't change any more */
1766         name = g_strdup_printf("console[%d]", i);
1767         object_property_add_child(container_get(object_get_root(), "/backend"),
1768                                   name, OBJECT(consoles[i]), &error_abort);
1769         g_free(name);
1770     }
1771 
1772     return display_state;
1773 }
1774 
1775 void graphic_console_set_hwops(QemuConsole *con,
1776                                const GraphicHwOps *hw_ops,
1777                                void *opaque)
1778 {
1779     con->hw_ops = hw_ops;
1780     con->hw = opaque;
1781 }
1782 
1783 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1784                                   const GraphicHwOps *hw_ops,
1785                                   void *opaque)
1786 {
1787     static const char noinit[] =
1788         "Guest has not initialized the display (yet).";
1789     int width = 640;
1790     int height = 480;
1791     QemuConsole *s;
1792     DisplayState *ds;
1793 
1794     ds = get_alloc_displaystate();
1795     trace_console_gfx_new();
1796     s = new_console(ds, GRAPHIC_CONSOLE, head);
1797     s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, dpy_set_ui_info_timer, s);
1798     graphic_console_set_hwops(s, hw_ops, opaque);
1799     if (dev) {
1800         object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1801                                  &error_abort);
1802     }
1803 
1804     s->surface = qemu_create_message_surface(width, height, noinit);
1805     return s;
1806 }
1807 
1808 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1809 {
1810     if (index >= nb_consoles) {
1811         return NULL;
1812     }
1813     return consoles[index];
1814 }
1815 
1816 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1817 {
1818     Object *obj;
1819     uint32_t h;
1820     int i;
1821 
1822     for (i = 0; i < nb_consoles; i++) {
1823         if (!consoles[i]) {
1824             continue;
1825         }
1826         obj = object_property_get_link(OBJECT(consoles[i]),
1827                                        "device", &error_abort);
1828         if (DEVICE(obj) != dev) {
1829             continue;
1830         }
1831         h = object_property_get_int(OBJECT(consoles[i]),
1832                                     "head", &error_abort);
1833         if (h != head) {
1834             continue;
1835         }
1836         return consoles[i];
1837     }
1838     return NULL;
1839 }
1840 
1841 QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
1842                                                 uint32_t head, Error **errp)
1843 {
1844     DeviceState *dev;
1845     QemuConsole *con;
1846 
1847     dev = qdev_find_recursive(sysbus_get_default(), device_id);
1848     if (dev == NULL) {
1849         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1850                   "Device '%s' not found", device_id);
1851         return NULL;
1852     }
1853 
1854     con = qemu_console_lookup_by_device(dev, head);
1855     if (con == NULL) {
1856         error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
1857                    device_id, head);
1858         return NULL;
1859     }
1860 
1861     return con;
1862 }
1863 
1864 bool qemu_console_is_visible(QemuConsole *con)
1865 {
1866     return (con == active_console) || (con->dcls > 0);
1867 }
1868 
1869 bool qemu_console_is_graphic(QemuConsole *con)
1870 {
1871     if (con == NULL) {
1872         con = active_console;
1873     }
1874     return con && (con->console_type == GRAPHIC_CONSOLE);
1875 }
1876 
1877 bool qemu_console_is_fixedsize(QemuConsole *con)
1878 {
1879     if (con == NULL) {
1880         con = active_console;
1881     }
1882     return con && (con->console_type != TEXT_CONSOLE);
1883 }
1884 
1885 bool qemu_console_is_gl_blocked(QemuConsole *con)
1886 {
1887     assert(con != NULL);
1888     return con->gl_block;
1889 }
1890 
1891 char *qemu_console_get_label(QemuConsole *con)
1892 {
1893     if (con->console_type == GRAPHIC_CONSOLE) {
1894         if (con->device) {
1895             return g_strdup(object_get_typename(con->device));
1896         }
1897         return g_strdup("VGA");
1898     } else {
1899         if (con->chr && con->chr->label) {
1900             return g_strdup(con->chr->label);
1901         }
1902         return g_strdup_printf("vc%d", con->index);
1903     }
1904 }
1905 
1906 int qemu_console_get_index(QemuConsole *con)
1907 {
1908     if (con == NULL) {
1909         con = active_console;
1910     }
1911     return con ? con->index : -1;
1912 }
1913 
1914 uint32_t qemu_console_get_head(QemuConsole *con)
1915 {
1916     if (con == NULL) {
1917         con = active_console;
1918     }
1919     return con ? con->head : -1;
1920 }
1921 
1922 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
1923 {
1924     assert(con != NULL);
1925     return &con->ui_info;
1926 }
1927 
1928 int qemu_console_get_width(QemuConsole *con, int fallback)
1929 {
1930     if (con == NULL) {
1931         con = active_console;
1932     }
1933     return con ? surface_width(con->surface) : fallback;
1934 }
1935 
1936 int qemu_console_get_height(QemuConsole *con, int fallback)
1937 {
1938     if (con == NULL) {
1939         con = active_console;
1940     }
1941     return con ? surface_height(con->surface) : fallback;
1942 }
1943 
1944 static void text_console_set_echo(CharDriverState *chr, bool echo)
1945 {
1946     QemuConsole *s = chr->opaque;
1947 
1948     s->echo = echo;
1949 }
1950 
1951 static void text_console_update_cursor_timer(void)
1952 {
1953     timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
1954               + CONSOLE_CURSOR_PERIOD / 2);
1955 }
1956 
1957 static void text_console_update_cursor(void *opaque)
1958 {
1959     QemuConsole *s;
1960     int i, count = 0;
1961 
1962     cursor_visible_phase = !cursor_visible_phase;
1963 
1964     for (i = 0; i < nb_consoles; i++) {
1965         s = consoles[i];
1966         if (qemu_console_is_graphic(s) ||
1967             !qemu_console_is_visible(s)) {
1968             continue;
1969         }
1970         count++;
1971         graphic_hw_invalidate(s);
1972     }
1973 
1974     if (count) {
1975         text_console_update_cursor_timer();
1976     }
1977 }
1978 
1979 static const GraphicHwOps text_console_ops = {
1980     .invalidate  = text_console_invalidate,
1981     .text_update = text_console_update,
1982 };
1983 
1984 static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
1985 {
1986     QemuConsole *s;
1987     int g_width = 80 * FONT_WIDTH;
1988     int g_height = 24 * FONT_HEIGHT;
1989 
1990     s = chr->opaque;
1991 
1992     chr->chr_write = console_puts;
1993 
1994     s->out_fifo.buf = s->out_fifo_buf;
1995     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
1996     s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
1997     s->ds = ds;
1998 
1999     s->y_displayed = 0;
2000     s->y_base = 0;
2001     s->total_height = DEFAULT_BACKSCROLL;
2002     s->x = 0;
2003     s->y = 0;
2004     if (!s->surface) {
2005         if (active_console && active_console->surface) {
2006             g_width = surface_width(active_console->surface);
2007             g_height = surface_height(active_console->surface);
2008         }
2009         s->surface = qemu_create_displaysurface(g_width, g_height);
2010     }
2011 
2012     s->hw_ops = &text_console_ops;
2013     s->hw = s;
2014 
2015     /* Set text attribute defaults */
2016     s->t_attrib_default.bold = 0;
2017     s->t_attrib_default.uline = 0;
2018     s->t_attrib_default.blink = 0;
2019     s->t_attrib_default.invers = 0;
2020     s->t_attrib_default.unvisible = 0;
2021     s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
2022     s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
2023     /* set current text attributes to default */
2024     s->t_attrib = s->t_attrib_default;
2025     text_console_resize(s);
2026 
2027     if (chr->label) {
2028         char msg[128];
2029         int len;
2030 
2031         s->t_attrib.bgcol = QEMU_COLOR_BLUE;
2032         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
2033         console_puts(chr, (uint8_t*)msg, len);
2034         s->t_attrib = s->t_attrib_default;
2035     }
2036 
2037     qemu_chr_be_generic_open(chr);
2038 }
2039 
2040 static CharDriverState *text_console_init(ChardevVC *vc, Error **errp)
2041 {
2042     ChardevCommon *common = qapi_ChardevVC_base(vc);
2043     CharDriverState *chr;
2044     QemuConsole *s;
2045     unsigned width = 0;
2046     unsigned height = 0;
2047 
2048     chr = qemu_chr_alloc(common, errp);
2049     if (!chr) {
2050         return NULL;
2051     }
2052 
2053     if (vc->has_width) {
2054         width = vc->width;
2055     } else if (vc->has_cols) {
2056         width = vc->cols * FONT_WIDTH;
2057     }
2058 
2059     if (vc->has_height) {
2060         height = vc->height;
2061     } else if (vc->has_rows) {
2062         height = vc->rows * FONT_HEIGHT;
2063     }
2064 
2065     trace_console_txt_new(width, height);
2066     if (width == 0 || height == 0) {
2067         s = new_console(NULL, TEXT_CONSOLE, 0);
2068     } else {
2069         s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
2070         s->surface = qemu_create_displaysurface(width, height);
2071     }
2072 
2073     if (!s) {
2074         g_free(chr);
2075         error_setg(errp, "cannot create text console");
2076         return NULL;
2077     }
2078 
2079     s->chr = chr;
2080     chr->opaque = s;
2081     chr->chr_set_echo = text_console_set_echo;
2082 
2083     if (display_state) {
2084         text_console_do_init(chr, display_state);
2085     }
2086     return chr;
2087 }
2088 
2089 static VcHandler *vc_handler = text_console_init;
2090 
2091 static CharDriverState *vc_init(const char *id, ChardevBackend *backend,
2092                                 ChardevReturn *ret, bool *be_opened,
2093                                 Error **errp)
2094 {
2095     /* console/chardev init sometimes completes elsewhere in a 2nd
2096      * stage, so defer OPENED events until they are fully initialized
2097      */
2098     *be_opened = false;
2099     return vc_handler(backend->u.vc.data, errp);
2100 }
2101 
2102 void register_vc_handler(VcHandler *handler)
2103 {
2104     vc_handler = handler;
2105 }
2106 
2107 void qemu_console_resize(QemuConsole *s, int width, int height)
2108 {
2109     DisplaySurface *surface;
2110 
2111     assert(s->console_type == GRAPHIC_CONSOLE);
2112 
2113     if (s->surface &&
2114         pixman_image_get_width(s->surface->image) == width &&
2115         pixman_image_get_height(s->surface->image) == height) {
2116         return;
2117     }
2118 
2119     surface = qemu_create_displaysurface(width, height);
2120     dpy_gfx_replace_surface(s, surface);
2121 }
2122 
2123 void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
2124                        int dst_x, int dst_y, int w, int h)
2125 {
2126     assert(con->console_type == GRAPHIC_CONSOLE);
2127     dpy_gfx_copy(con, src_x, src_y, dst_x, dst_y, w, h);
2128 }
2129 
2130 DisplaySurface *qemu_console_surface(QemuConsole *console)
2131 {
2132     return console->surface;
2133 }
2134 
2135 PixelFormat qemu_default_pixelformat(int bpp)
2136 {
2137     pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2138     PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2139     return pf;
2140 }
2141 
2142 static void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend,
2143                               Error **errp)
2144 {
2145     int val;
2146     ChardevVC *vc;
2147 
2148     vc = backend->u.vc.data = g_new0(ChardevVC, 1);
2149     qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
2150 
2151     val = qemu_opt_get_number(opts, "width", 0);
2152     if (val != 0) {
2153         vc->has_width = true;
2154         vc->width = val;
2155     }
2156 
2157     val = qemu_opt_get_number(opts, "height", 0);
2158     if (val != 0) {
2159         vc->has_height = true;
2160         vc->height = val;
2161     }
2162 
2163     val = qemu_opt_get_number(opts, "cols", 0);
2164     if (val != 0) {
2165         vc->has_cols = true;
2166         vc->cols = val;
2167     }
2168 
2169     val = qemu_opt_get_number(opts, "rows", 0);
2170     if (val != 0) {
2171         vc->has_rows = true;
2172         vc->rows = val;
2173     }
2174 }
2175 
2176 static const TypeInfo qemu_console_info = {
2177     .name = TYPE_QEMU_CONSOLE,
2178     .parent = TYPE_OBJECT,
2179     .instance_size = sizeof(QemuConsole),
2180     .class_size = sizeof(QemuConsoleClass),
2181 };
2182 
2183 
2184 static void register_types(void)
2185 {
2186     type_register_static(&qemu_console_info);
2187     register_char_driver("vc", CHARDEV_BACKEND_KIND_VC, qemu_chr_parse_vc,
2188                          vc_init);
2189 }
2190 
2191 type_init(register_types);
2192