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