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 "trace.h"
  27 #include "ui/console.h"
  28 #include "hw/qdev-core.h"
  29 #include "qemu/timer.h"
  30 #include "qmp-commands.h"
  31 #include "sysemu/char.h"
  32 #include "trace.h"
  33 #include "exec/memory.h"
  34
  35 #define DEFAULT_BACKSCROLL 512
  36 #define CONSOLE_CURSOR_PERIOD 500
  37
  38 typedef struct TextAttributes {
  39     uint8_t fgcol:4;
  40     uint8_t bgcol:4;
  41     uint8_t bold:1;
  42     uint8_t uline:1;
  43     uint8_t blink:1;
  44     uint8_t invers:1;
  45     uint8_t unvisible:1;
  46 } TextAttributes;
  47
  48 typedef struct TextCell {
  49     uint8_t ch;
  50     TextAttributes t_attrib;
  51 } TextCell;
  52
  53 #define MAX_ESC_PARAMS 3
  54
  55 enum TTYState {
  56     TTY_STATE_NORM,
  57     TTY_STATE_ESC,
  58     TTY_STATE_CSI,
  59 };
  60
  61 typedef struct QEMUFIFO {
  62     uint8_t *buf;
  63     int buf_size;
  64     int count, wptr, rptr;
  65 } QEMUFIFO;
  66
  67 static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
  68 {
  69     int l, len;
  70
  71     l = f->buf_size - f->count;
  72     if (len1 > l)
  73         len1 = l;
  74     len = len1;
  75     while (len > 0) {
  76         l = f->buf_size - f->wptr;
  77         if (l > len)
  78             l = len;
  79         memcpy(f->buf + f->wptr, buf, l);
  80         f->wptr += l;
  81         if (f->wptr >= f->buf_size)
  82             f->wptr = 0;
  83         buf += l;
  84         len -= l;
  85     }
  86     f->count += len1;
  87     return len1;
  88 }
  89
  90 static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
  91 {
  92     int l, len;
  93
  94     if (len1 > f->count)
  95         len1 = f->count;
  96     len = len1;
  97     while (len > 0) {
  98         l = f->buf_size - f->rptr;
  99         if (l > len)
 100             l = len;
 101         memcpy(buf, f->buf + f->rptr, l);
 102         f->rptr += l;
 103         if (f->rptr >= f->buf_size)
 104             f->rptr = 0;
 105         buf += l;
 106         len -= l;
 107     }
 108     f->count -= len1;
 109     return len1;
 110 }
 111
 112 typedef enum {
 113     GRAPHIC_CONSOLE,
 114     TEXT_CONSOLE,
 115     TEXT_CONSOLE_FIXED_SIZE
 116 } console_type_t;
 117
 118 struct QemuConsole {
 119     Object parent;
 120
 121     int index;
 122     console_type_t console_type;
 123     DisplayState *ds;
 124     DisplaySurface *surface;
 125     int dcls;
 126     DisplayChangeListener *gl;
 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     if (!con) {
 269         con = active_console;
 270     }
 271     if (con && 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     int c;
1087
1088     if (!s || (s->console_type == GRAPHIC_CONSOLE))
1089         return;
1090
1091     switch(keysym) {
1092     case QEMU_KEY_CTRL_UP:
1093         console_scroll(s, -1);
1094         break;
1095     case QEMU_KEY_CTRL_DOWN:
1096         console_scroll(s, 1);
1097         break;
1098     case QEMU_KEY_CTRL_PAGEUP:
1099         console_scroll(s, -10);
1100         break;
1101     case QEMU_KEY_CTRL_PAGEDOWN:
1102         console_scroll(s, 10);
1103         break;
1104     default:
1105         /* convert the QEMU keysym to VT100 key string */
1106         q = buf;
1107         if (keysym >= 0xe100 && keysym <= 0xe11f) {
1108             *q++ = '\033';
1109             *q++ = '[';
1110             c = keysym - 0xe100;
1111             if (c >= 10)
1112                 *q++ = '0' + (c / 10);
1113             *q++ = '0' + (c % 10);
1114             *q++ = '~';
1115         } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1116             *q++ = '\033';
1117             *q++ = '[';
1118             *q++ = keysym & 0xff;
1119         } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1120             console_puts(s->chr, (const uint8_t *) "\r", 1);
1121             *q++ = '\n';
1122         } else {
1123             *q++ = keysym;
1124         }
1125         if (s->echo) {
1126             console_puts(s->chr, buf, q - buf);
1127         }
1128         if (s->chr->chr_read) {
1129             qemu_fifo_write(&s->out_fifo, buf, q - buf);
1130             kbd_send_chars(s);
1131         }
1132         break;
1133     }
1134 }
1135
1136 static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
1137     [Q_KEY_CODE_UP]     = QEMU_KEY_UP,
1138     [Q_KEY_CODE_DOWN]   = QEMU_KEY_DOWN,
1139     [Q_KEY_CODE_RIGHT]  = QEMU_KEY_RIGHT,
1140     [Q_KEY_CODE_LEFT]   = QEMU_KEY_LEFT,
1141     [Q_KEY_CODE_HOME]   = QEMU_KEY_HOME,
1142     [Q_KEY_CODE_END]    = QEMU_KEY_END,
1143     [Q_KEY_CODE_PGUP]   = QEMU_KEY_PAGEUP,
1144     [Q_KEY_CODE_PGDN]   = QEMU_KEY_PAGEDOWN,
1145     [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1146 };
1147
1148 bool kbd_put_qcode_console(QemuConsole *s, int qcode)
1149 {
1150     int keysym;
1151
1152     keysym = qcode_to_keysym[qcode];
1153     if (keysym == 0) {
1154         return false;
1155     }
1156     kbd_put_keysym_console(s, keysym);
1157     return true;
1158 }
1159
1160 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1161 {
1162     int i;
1163
1164     for (i = 0; i < len && str[i]; i++) {
1165         kbd_put_keysym_console(s, str[i]);
1166     }
1167 }
1168
1169 void kbd_put_keysym(int keysym)
1170 {
1171     kbd_put_keysym_console(active_console, keysym);
1172 }
1173
1174 static void text_console_invalidate(void *opaque)
1175 {
1176     QemuConsole *s = (QemuConsole *) opaque;
1177
1178     if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1179         text_console_resize(s);
1180     }
1181     console_refresh(s);
1182 }
1183
1184 static void text_console_update(void *opaque, console_ch_t *chardata)
1185 {
1186     QemuConsole *s = (QemuConsole *) opaque;
1187     int i, j, src;
1188
1189     if (s->text_x[0] <= s->text_x[1]) {
1190         src = (s->y_base + s->text_y[0]) * s->width;
1191         chardata += s->text_y[0] * s->width;
1192         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1193             for (j = 0; j < s->width; j++, src++) {
1194                 console_write_ch(chardata ++,
1195                                  ATTR2CHTYPE(s->cells[src].ch,
1196                                              s->cells[src].t_attrib.fgcol,
1197                                              s->cells[src].t_attrib.bgcol,
1198                                              s->cells[src].t_attrib.bold));
1199             }
1200         dpy_text_update(s, s->text_x[0], s->text_y[0],
1201                         s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1202         s->text_x[0] = s->width;
1203         s->text_y[0] = s->height;
1204         s->text_x[1] = 0;
1205         s->text_y[1] = 0;
1206     }
1207     if (s->cursor_invalidate) {
1208         dpy_text_cursor(s, s->x, s->y);
1209         s->cursor_invalidate = 0;
1210     }
1211 }
1212
1213 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1214                                 uint32_t head)
1215 {
1216     Object *obj;
1217     QemuConsole *s;
1218     int i;
1219
1220     obj = object_new(TYPE_QEMU_CONSOLE);
1221     s = QEMU_CONSOLE(obj);
1222     s->head = head;
1223     object_property_add_link(obj, "device", TYPE_DEVICE,
1224                              (Object **)&s->device,
1225                              object_property_allow_set_link,
1226                              OBJ_PROP_LINK_UNREF_ON_RELEASE,
1227                              &error_abort);
1228     object_property_add_uint32_ptr(obj, "head",
1229                                    &s->head, &error_abort);
1230
1231     if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1232         (console_type == GRAPHIC_CONSOLE))) {
1233         active_console = s;
1234     }
1235     s->ds = ds;
1236     s->console_type = console_type;
1237
1238     consoles = g_realloc(consoles, sizeof(*consoles) * (nb_consoles+1));
1239     if (console_type != GRAPHIC_CONSOLE) {
1240         s->index = nb_consoles;
1241         consoles[nb_consoles++] = s;
1242     } else {
1243         /* HACK: Put graphical consoles before text consoles.  */
1244         for (i = nb_consoles; i > 0; i--) {
1245             if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
1246                 break;
1247             consoles[i] = consoles[i - 1];
1248             consoles[i]->index = i;
1249         }
1250         s->index = i;
1251         consoles[i] = s;
1252         nb_consoles++;
1253     }
1254     return s;
1255 }
1256
1257 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1258 {
1259     qemu_pixman_image_unref(surface->image);
1260     surface->image = NULL;
1261
1262     surface->format = PIXMAN_x8r8g8b8;
1263     surface->image = pixman_image_create_bits(surface->format,
1264                                               width, height,
1265                                               NULL, width * 4);
1266     assert(surface->image != NULL);
1267
1268     surface->flags = QEMU_ALLOCATED_FLAG;
1269 }
1270
1271 DisplaySurface *qemu_create_displaysurface(int width, int height)
1272 {
1273     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1274
1275     trace_displaysurface_create(surface, width, height);
1276     qemu_alloc_display(surface, width, height);
1277     return surface;
1278 }
1279
1280 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1281                                                 pixman_format_code_t format,
1282                                                 int linesize, uint8_t *data)
1283 {
1284     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1285
1286     trace_displaysurface_create_from(surface, width, height, format);
1287     surface->format = format;
1288     surface->image = pixman_image_create_bits(surface->format,
1289                                               width, height,
1290                                               (void *)data, linesize);
1291     assert(surface->image != NULL);
1292
1293     return surface;
1294 }
1295
1296 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
1297 {
1298     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1299
1300     trace_displaysurface_create_pixman(surface);
1301     surface->format = pixman_image_get_format(image);
1302     surface->image = pixman_image_ref(image);
1303
1304     return surface;
1305 }
1306
1307 static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image,
1308                                                void *unused)
1309 {
1310     void *data = pixman_image_get_data(image);
1311     uint32_t size = pixman_image_get_stride(image) *
1312         pixman_image_get_height(image);
1313     cpu_physical_memory_unmap(data, size, 0, 0);
1314 }
1315
1316 DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
1317                                                     pixman_format_code_t format,
1318                                                     int linesize, uint64_t addr)
1319 {
1320     DisplaySurface *surface;
1321     hwaddr size;
1322     void *data;
1323
1324     if (linesize == 0) {
1325         linesize = width * PIXMAN_FORMAT_BPP(format) / 8;
1326     }
1327
1328     size = (hwaddr)linesize * height;
1329     data = cpu_physical_memory_map(addr, &size, 0);
1330     if (size != (hwaddr)linesize * height) {
1331         cpu_physical_memory_unmap(data, size, 0, 0);
1332         return NULL;
1333     }
1334
1335     surface = qemu_create_displaysurface_from
1336         (width, height, format, linesize, data);
1337     pixman_image_set_destroy_function
1338         (surface->image, qemu_unmap_displaysurface_guestmem, NULL);
1339
1340     return surface;
1341 }
1342
1343 static DisplaySurface *qemu_create_message_surface(int w, int h,
1344                                                    const char *msg)
1345 {
1346     DisplaySurface *surface = qemu_create_displaysurface(w, h);
1347     pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
1348     pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
1349     pixman_image_t *glyph;
1350     int len, x, y, i;
1351
1352     len = strlen(msg);
1353     x = (w / FONT_WIDTH  - len) / 2;
1354     y = (h / FONT_HEIGHT - 1)   / 2;
1355     for (i = 0; i < len; i++) {
1356         glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1357         qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1358                                  x+i, y, FONT_WIDTH, FONT_HEIGHT);
1359         qemu_pixman_image_unref(glyph);
1360     }
1361     return surface;
1362 }
1363
1364 void qemu_free_displaysurface(DisplaySurface *surface)
1365 {
1366     if (surface == NULL) {
1367         return;
1368     }
1369     trace_displaysurface_free(surface);
1370     qemu_pixman_image_unref(surface->image);
1371     g_free(surface);
1372 }
1373
1374 bool console_has_gl(QemuConsole *con)
1375 {
1376     return con->gl != NULL;
1377 }
1378
1379 void register_displaychangelistener(DisplayChangeListener *dcl)
1380 {
1381     static const char nodev[] =
1382         "This VM has no graphic display device.";
1383     static DisplaySurface *dummy;
1384     QemuConsole *con;
1385
1386     if (dcl->ops->dpy_gl_ctx_create) {
1387         /* display has opengl support */
1388         assert(dcl->con);
1389         if (dcl->con->gl) {
1390             fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1391                     dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1392             exit(1);
1393         }
1394         dcl->con->gl = dcl;
1395     }
1396
1397     trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1398     dcl->ds = get_alloc_displaystate();
1399     QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1400     gui_setup_refresh(dcl->ds);
1401     if (dcl->con) {
1402         dcl->con->dcls++;
1403         con = dcl->con;
1404     } else {
1405         con = active_console;
1406     }
1407     if (dcl->ops->dpy_gfx_switch) {
1408         if (con) {
1409             dcl->ops->dpy_gfx_switch(dcl, con->surface);
1410         } else {
1411             if (!dummy) {
1412                 dummy = qemu_create_message_surface(640, 480, nodev);
1413             }
1414             dcl->ops->dpy_gfx_switch(dcl, dummy);
1415         }
1416     }
1417     text_console_update_cursor(NULL);
1418 }
1419
1420 void update_displaychangelistener(DisplayChangeListener *dcl,
1421                                   uint64_t interval)
1422 {
1423     DisplayState *ds = dcl->ds;
1424
1425     dcl->update_interval = interval;
1426     if (!ds->refreshing && ds->update_interval > interval) {
1427         timer_mod(ds->gui_timer, ds->last_update + interval);
1428     }
1429 }
1430
1431 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1432 {
1433     DisplayState *ds = dcl->ds;
1434     trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1435     if (dcl->con) {
1436         dcl->con->dcls--;
1437     }
1438     QLIST_REMOVE(dcl, next);
1439     gui_setup_refresh(ds);
1440 }
1441
1442 static void dpy_set_ui_info_timer(void *opaque)
1443 {
1444     QemuConsole *con = opaque;
1445
1446     con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1447 }
1448
1449 bool dpy_ui_info_supported(QemuConsole *con)
1450 {
1451     return con->hw_ops->ui_info != NULL;
1452 }
1453
1454 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1455 {
1456     assert(con != NULL);
1457
1458     if (!dpy_ui_info_supported(con)) {
1459         return -1;
1460     }
1461     if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
1462         /* nothing changed -- ignore */
1463         return 0;
1464     }
1465
1466     /*
1467      * Typically we get a flood of these as the user resizes the window.
1468      * Wait until the dust has settled (one second without updates), then
1469      * go notify the guest.
1470      */
1471     con->ui_info = *info;
1472     timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1473     return 0;
1474 }
1475
1476 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1477 {
1478     DisplayState *s = con->ds;
1479     DisplayChangeListener *dcl;
1480     int width = w;
1481     int height = h;
1482
1483     if (con->surface) {
1484         width = surface_width(con->surface);
1485         height = surface_height(con->surface);
1486     }
1487     x = MAX(x, 0);
1488     y = MAX(y, 0);
1489     x = MIN(x, width);
1490     y = MIN(y, height);
1491     w = MIN(w, width - x);
1492     h = MIN(h, height - y);
1493
1494     if (!qemu_console_is_visible(con)) {
1495         return;
1496     }
1497     QLIST_FOREACH(dcl, &s->listeners, next) {
1498         if (con != (dcl->con ? dcl->con : active_console)) {
1499             continue;
1500         }
1501         if (dcl->ops->dpy_gfx_update) {
1502             dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1503         }
1504     }
1505 }
1506
1507 void dpy_gfx_replace_surface(QemuConsole *con,
1508                              DisplaySurface *surface)
1509 {
1510     DisplayState *s = con->ds;
1511     DisplaySurface *old_surface = con->surface;
1512     DisplayChangeListener *dcl;
1513
1514     con->surface = surface;
1515     QLIST_FOREACH(dcl, &s->listeners, next) {
1516         if (con != (dcl->con ? dcl->con : active_console)) {
1517             continue;
1518         }
1519         if (dcl->ops->dpy_gfx_switch) {
1520             dcl->ops->dpy_gfx_switch(dcl, surface);
1521         }
1522     }
1523     qemu_free_displaysurface(old_surface);
1524 }
1525
1526 bool dpy_gfx_check_format(QemuConsole *con,
1527                           pixman_format_code_t format)
1528 {
1529     DisplayChangeListener *dcl;
1530     DisplayState *s = con->ds;
1531
1532     QLIST_FOREACH(dcl, &s->listeners, next) {
1533         if (dcl->con && dcl->con != con) {
1534             /* dcl bound to another console -> skip */
1535             continue;
1536         }
1537         if (dcl->ops->dpy_gfx_check_format) {
1538             if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1539                 return false;
1540             }
1541         } else {
1542             /* default is to whitelist native 32 bpp only */
1543             if (format != qemu_default_pixman_format(32, true)) {
1544                 return false;
1545             }
1546         }
1547     }
1548     return true;
1549 }
1550
1551 static void dpy_refresh(DisplayState *s)
1552 {
1553     DisplayChangeListener *dcl;
1554
1555     QLIST_FOREACH(dcl, &s->listeners, next) {
1556         if (dcl->ops->dpy_refresh) {
1557             dcl->ops->dpy_refresh(dcl);
1558         }
1559     }
1560 }
1561
1562 void dpy_gfx_copy(QemuConsole *con, int src_x, int src_y,
1563                   int dst_x, int dst_y, int w, int h)
1564 {
1565     DisplayState *s = con->ds;
1566     DisplayChangeListener *dcl;
1567
1568     if (!qemu_console_is_visible(con)) {
1569         return;
1570     }
1571     QLIST_FOREACH(dcl, &s->listeners, next) {
1572         if (con != (dcl->con ? dcl->con : active_console)) {
1573             continue;
1574         }
1575         if (dcl->ops->dpy_gfx_copy) {
1576             dcl->ops->dpy_gfx_copy(dcl, src_x, src_y, dst_x, dst_y, w, h);
1577         } else { /* TODO */
1578             dcl->ops->dpy_gfx_update(dcl, dst_x, dst_y, w, h);
1579         }
1580     }
1581 }
1582
1583 void dpy_text_cursor(QemuConsole *con, int x, int y)
1584 {
1585     DisplayState *s = con->ds;
1586     DisplayChangeListener *dcl;
1587
1588     if (!qemu_console_is_visible(con)) {
1589         return;
1590     }
1591     QLIST_FOREACH(dcl, &s->listeners, next) {
1592         if (con != (dcl->con ? dcl->con : active_console)) {
1593             continue;
1594         }
1595         if (dcl->ops->dpy_text_cursor) {
1596             dcl->ops->dpy_text_cursor(dcl, x, y);
1597         }
1598     }
1599 }
1600
1601 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1602 {
1603     DisplayState *s = con->ds;
1604     DisplayChangeListener *dcl;
1605
1606     if (!qemu_console_is_visible(con)) {
1607         return;
1608     }
1609     QLIST_FOREACH(dcl, &s->listeners, next) {
1610         if (con != (dcl->con ? dcl->con : active_console)) {
1611             continue;
1612         }
1613         if (dcl->ops->dpy_text_update) {
1614             dcl->ops->dpy_text_update(dcl, x, y, w, h);
1615         }
1616     }
1617 }
1618
1619 void dpy_text_resize(QemuConsole *con, int w, int h)
1620 {
1621     DisplayState *s = con->ds;
1622     DisplayChangeListener *dcl;
1623
1624     if (!qemu_console_is_visible(con)) {
1625         return;
1626     }
1627     QLIST_FOREACH(dcl, &s->listeners, next) {
1628         if (con != (dcl->con ? dcl->con : active_console)) {
1629             continue;
1630         }
1631         if (dcl->ops->dpy_text_resize) {
1632             dcl->ops->dpy_text_resize(dcl, w, h);
1633         }
1634     }
1635 }
1636
1637 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1638 {
1639     DisplayState *s = con->ds;
1640     DisplayChangeListener *dcl;
1641
1642     if (!qemu_console_is_visible(con)) {
1643         return;
1644     }
1645     QLIST_FOREACH(dcl, &s->listeners, next) {
1646         if (con != (dcl->con ? dcl->con : active_console)) {
1647             continue;
1648         }
1649         if (dcl->ops->dpy_mouse_set) {
1650             dcl->ops->dpy_mouse_set(dcl, x, y, on);
1651         }
1652     }
1653 }
1654
1655 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1656 {
1657     DisplayState *s = con->ds;
1658     DisplayChangeListener *dcl;
1659
1660     if (!qemu_console_is_visible(con)) {
1661         return;
1662     }
1663     QLIST_FOREACH(dcl, &s->listeners, next) {
1664         if (con != (dcl->con ? dcl->con : active_console)) {
1665             continue;
1666         }
1667         if (dcl->ops->dpy_cursor_define) {
1668             dcl->ops->dpy_cursor_define(dcl, cursor);
1669         }
1670     }
1671 }
1672
1673 bool dpy_cursor_define_supported(QemuConsole *con)
1674 {
1675     DisplayState *s = con->ds;
1676     DisplayChangeListener *dcl;
1677
1678     QLIST_FOREACH(dcl, &s->listeners, next) {
1679         if (dcl->ops->dpy_cursor_define) {
1680             return true;
1681         }
1682     }
1683     return false;
1684 }
1685
1686 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1687                                 struct QEMUGLParams *qparams)
1688 {
1689     assert(con->gl);
1690     return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1691 }
1692
1693 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1694 {
1695     assert(con->gl);
1696     con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1697 }
1698
1699 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1700 {
1701     assert(con->gl);
1702     return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1703 }
1704
1705 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1706 {
1707     assert(con->gl);
1708     return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1709 }
1710
1711 void dpy_gl_scanout(QemuConsole *con,
1712                     uint32_t backing_id, bool backing_y_0_top,
1713                     uint32_t backing_width, uint32_t backing_height,
1714                     uint32_t x, uint32_t y, uint32_t width, uint32_t height)
1715 {
1716     assert(con->gl);
1717     con->gl->ops->dpy_gl_scanout(con->gl, backing_id,
1718                                  backing_y_0_top,
1719                                  backing_width, backing_height,
1720                                  x, y, width, height);
1721 }
1722
1723 void dpy_gl_update(QemuConsole *con,
1724                    uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1725 {
1726     assert(con->gl);
1727     con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1728 }
1729
1730 /***********************************************************/
1731 /* register display */
1732
1733 /* console.c internal use only */
1734 static DisplayState *get_alloc_displaystate(void)
1735 {
1736     if (!display_state) {
1737         display_state = g_new0(DisplayState, 1);
1738         cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1739                                     text_console_update_cursor, NULL);
1740     }
1741     return display_state;
1742 }
1743
1744 /*
1745  * Called by main(), after creating QemuConsoles
1746  * and before initializing ui (sdl/vnc/...).
1747  */
1748 DisplayState *init_displaystate(void)
1749 {
1750     gchar *name;
1751     int i;
1752
1753     get_alloc_displaystate();
1754     for (i = 0; i < nb_consoles; i++) {
1755         if (consoles[i]->console_type != GRAPHIC_CONSOLE &&
1756             consoles[i]->ds == NULL) {
1757             text_console_do_init(consoles[i]->chr, display_state);
1758         }
1759
1760         /* Hook up into the qom tree here (not in new_console()), once
1761          * all QemuConsoles are created and the order / numbering
1762          * doesn't change any more */
1763         name = g_strdup_printf("console[%d]", i);
1764         object_property_add_child(container_get(object_get_root(), "/backend"),
1765                                   name, OBJECT(consoles[i]), &error_abort);
1766         g_free(name);
1767     }
1768
1769     return display_state;
1770 }
1771
1772 void graphic_console_set_hwops(QemuConsole *con,
1773                                const GraphicHwOps *hw_ops,
1774                                void *opaque)
1775 {
1776     con->hw_ops = hw_ops;
1777     con->hw = opaque;
1778 }
1779
1780 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1781                                   const GraphicHwOps *hw_ops,
1782                                   void *opaque)
1783 {
1784     static const char noinit[] =
1785         "Guest has not initialized the display (yet).";
1786     int width = 640;
1787     int height = 480;
1788     QemuConsole *s;
1789     DisplayState *ds;
1790
1791     ds = get_alloc_displaystate();
1792     trace_console_gfx_new();
1793     s = new_console(ds, GRAPHIC_CONSOLE, head);
1794     s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, dpy_set_ui_info_timer, s);
1795     graphic_console_set_hwops(s, hw_ops, opaque);
1796     if (dev) {
1797         object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1798                                  &error_abort);
1799     }
1800
1801     s->surface = qemu_create_message_surface(width, height, noinit);
1802     return s;
1803 }
1804
1805 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1806 {
1807     if (index >= nb_consoles) {
1808         return NULL;
1809     }
1810     return consoles[index];
1811 }
1812
1813 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1814 {
1815     Object *obj;
1816     uint32_t h;
1817     int i;
1818
1819     for (i = 0; i < nb_consoles; i++) {
1820         if (!consoles[i]) {
1821             continue;
1822         }
1823         obj = object_property_get_link(OBJECT(consoles[i]),
1824                                        "device", &error_abort);
1825         if (DEVICE(obj) != dev) {
1826             continue;
1827         }
1828         h = object_property_get_int(OBJECT(consoles[i]),
1829                                     "head", &error_abort);
1830         if (h != head) {
1831             continue;
1832         }
1833         return consoles[i];
1834     }
1835     return NULL;
1836 }
1837
1838 QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
1839                                                 uint32_t head, Error **errp)
1840 {
1841     DeviceState *dev;
1842     QemuConsole *con;
1843
1844     dev = qdev_find_recursive(sysbus_get_default(), device_id);
1845     if (dev == NULL) {
1846         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1847                   "Device '%s' not found", device_id);
1848         return NULL;
1849     }
1850
1851     con = qemu_console_lookup_by_device(dev, head);
1852     if (con == NULL) {
1853         error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
1854                    device_id, head);
1855         return NULL;
1856     }
1857
1858     return con;
1859 }
1860
1861 bool qemu_console_is_visible(QemuConsole *con)
1862 {
1863     return (con == active_console) || (con->dcls > 0);
1864 }
1865
1866 bool qemu_console_is_graphic(QemuConsole *con)
1867 {
1868     if (con == NULL) {
1869         con = active_console;
1870     }
1871     return con && (con->console_type == GRAPHIC_CONSOLE);
1872 }
1873
1874 bool qemu_console_is_fixedsize(QemuConsole *con)
1875 {
1876     if (con == NULL) {
1877         con = active_console;
1878     }
1879     return con && (con->console_type != TEXT_CONSOLE);
1880 }
1881
1882 char *qemu_console_get_label(QemuConsole *con)
1883 {
1884     if (con->console_type == GRAPHIC_CONSOLE) {
1885         if (con->device) {
1886             return g_strdup(object_get_typename(con->device));
1887         }
1888         return g_strdup("VGA");
1889     } else {
1890         if (con->chr && con->chr->label) {
1891             return g_strdup(con->chr->label);
1892         }
1893         return g_strdup_printf("vc%d", con->index);
1894     }
1895 }
1896
1897 int qemu_console_get_index(QemuConsole *con)
1898 {
1899     if (con == NULL) {
1900         con = active_console;
1901     }
1902     return con ? con->index : -1;
1903 }
1904
1905 uint32_t qemu_console_get_head(QemuConsole *con)
1906 {
1907     if (con == NULL) {
1908         con = active_console;
1909     }
1910     return con ? con->head : -1;
1911 }
1912
1913 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
1914 {
1915     assert(con != NULL);
1916     return &con->ui_info;
1917 }
1918
1919 int qemu_console_get_width(QemuConsole *con, int fallback)
1920 {
1921     if (con == NULL) {
1922         con = active_console;
1923     }
1924     return con ? surface_width(con->surface) : fallback;
1925 }
1926
1927 int qemu_console_get_height(QemuConsole *con, int fallback)
1928 {
1929     if (con == NULL) {
1930         con = active_console;
1931     }
1932     return con ? surface_height(con->surface) : fallback;
1933 }
1934
1935 static void text_console_set_echo(CharDriverState *chr, bool echo)
1936 {
1937     QemuConsole *s = chr->opaque;
1938
1939     s->echo = echo;
1940 }
1941
1942 static void text_console_update_cursor_timer(void)
1943 {
1944     timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
1945               + CONSOLE_CURSOR_PERIOD / 2);
1946 }
1947
1948 static void text_console_update_cursor(void *opaque)
1949 {
1950     QemuConsole *s;
1951     int i, count = 0;
1952
1953     cursor_visible_phase = !cursor_visible_phase;
1954
1955     for (i = 0; i < nb_consoles; i++) {
1956         s = consoles[i];
1957         if (qemu_console_is_graphic(s) ||
1958             !qemu_console_is_visible(s)) {
1959             continue;
1960         }
1961         count++;
1962         graphic_hw_invalidate(s);
1963     }
1964
1965     if (count) {
1966         text_console_update_cursor_timer();
1967     }
1968 }
1969
1970 static const GraphicHwOps text_console_ops = {
1971     .invalidate  = text_console_invalidate,
1972     .text_update = text_console_update,
1973 };
1974
1975 static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
1976 {
1977     QemuConsole *s;
1978     int g_width = 80 * FONT_WIDTH;
1979     int g_height = 24 * FONT_HEIGHT;
1980
1981     s = chr->opaque;
1982
1983     chr->chr_write = console_puts;
1984
1985     s->out_fifo.buf = s->out_fifo_buf;
1986     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
1987     s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
1988     s->ds = ds;
1989
1990     s->y_displayed = 0;
1991     s->y_base = 0;
1992     s->total_height = DEFAULT_BACKSCROLL;
1993     s->x = 0;
1994     s->y = 0;
1995     if (!s->surface) {
1996         if (active_console && active_console->surface) {
1997             g_width = surface_width(active_console->surface);
1998             g_height = surface_height(active_console->surface);
1999         }
2000         s->surface = qemu_create_displaysurface(g_width, g_height);
2001     }
2002
2003     s->hw_ops = &text_console_ops;
2004     s->hw = s;
2005
2006     /* Set text attribute defaults */
2007     s->t_attrib_default.bold = 0;
2008     s->t_attrib_default.uline = 0;
2009     s->t_attrib_default.blink = 0;
2010     s->t_attrib_default.invers = 0;
2011     s->t_attrib_default.unvisible = 0;
2012     s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
2013     s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
2014     /* set current text attributes to default */
2015     s->t_attrib = s->t_attrib_default;
2016     text_console_resize(s);
2017
2018     if (chr->label) {
2019         char msg[128];
2020         int len;
2021
2022         s->t_attrib.bgcol = QEMU_COLOR_BLUE;
2023         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
2024         console_puts(chr, (uint8_t*)msg, len);
2025         s->t_attrib = s->t_attrib_default;
2026     }
2027
2028     qemu_chr_be_generic_open(chr);
2029     if (chr->init)
2030         chr->init(chr);
2031 }
2032
2033 static CharDriverState *text_console_init(ChardevVC *vc, Error **errp)
2034 {
2035     ChardevCommon *common = qapi_ChardevVC_base(vc);
2036     CharDriverState *chr;
2037     QemuConsole *s;
2038     unsigned width = 0;
2039     unsigned height = 0;
2040
2041     chr = qemu_chr_alloc(common, errp);
2042     if (!chr) {
2043         return NULL;
2044     }
2045
2046     if (vc->has_width) {
2047         width = vc->width;
2048     } else if (vc->has_cols) {
2049         width = vc->cols * FONT_WIDTH;
2050     }
2051
2052     if (vc->has_height) {
2053         height = vc->height;
2054     } else if (vc->has_rows) {
2055         height = vc->rows * FONT_HEIGHT;
2056     }
2057
2058     trace_console_txt_new(width, height);
2059     if (width == 0 || height == 0) {
2060         s = new_console(NULL, TEXT_CONSOLE, 0);
2061     } else {
2062         s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
2063         s->surface = qemu_create_displaysurface(width, height);
2064     }
2065
2066     if (!s) {
2067         g_free(chr);
2068         error_setg(errp, "cannot create text console");
2069         return NULL;
2070     }
2071
2072     s->chr = chr;
2073     chr->opaque = s;
2074     chr->chr_set_echo = text_console_set_echo;
2075     /* console/chardev init sometimes completes elsewhere in a 2nd
2076      * stage, so defer OPENED events until they are fully initialized
2077      */
2078     chr->explicit_be_open = true;
2079
2080     if (display_state) {
2081         text_console_do_init(chr, display_state);
2082     }
2083     return chr;
2084 }
2085
2086 static VcHandler *vc_handler = text_console_init;
2087
2088 static CharDriverState *vc_init(const char *id, ChardevBackend *backend,
2089                                 ChardevReturn *ret, Error **errp)
2090 {
2091     return vc_handler(backend->u.vc.data, errp);
2092 }
2093
2094 void register_vc_handler(VcHandler *handler)
2095 {
2096     vc_handler = handler;
2097 }
2098
2099 void qemu_console_resize(QemuConsole *s, int width, int height)
2100 {
2101     DisplaySurface *surface;
2102
2103     assert(s->console_type == GRAPHIC_CONSOLE);
2104     surface = qemu_create_displaysurface(width, height);
2105     dpy_gfx_replace_surface(s, surface);
2106 }
2107
2108 void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
2109                        int dst_x, int dst_y, int w, int h)
2110 {
2111     assert(con->console_type == GRAPHIC_CONSOLE);
2112     dpy_gfx_copy(con, src_x, src_y, dst_x, dst_y, w, h);
2113 }
2114
2115 DisplaySurface *qemu_console_surface(QemuConsole *console)
2116 {
2117     return console->surface;
2118 }
2119
2120 PixelFormat qemu_default_pixelformat(int bpp)
2121 {
2122     pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2123     PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2124     return pf;
2125 }
2126
2127 static void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend,
2128                               Error **errp)
2129 {
2130     int val;
2131     ChardevVC *vc;
2132
2133     vc = backend->u.vc.data = g_new0(ChardevVC, 1);
2134     qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
2135
2136     val = qemu_opt_get_number(opts, "width", 0);
2137     if (val != 0) {
2138         vc->has_width = true;
2139         vc->width = val;
2140     }
2141
2142     val = qemu_opt_get_number(opts, "height", 0);
2143     if (val != 0) {
2144         vc->has_height = true;
2145         vc->height = val;
2146     }
2147
2148     val = qemu_opt_get_number(opts, "cols", 0);
2149     if (val != 0) {
2150         vc->has_cols = true;
2151         vc->cols = val;
2152     }
2153
2154     val = qemu_opt_get_number(opts, "rows", 0);
2155     if (val != 0) {
2156         vc->has_rows = true;
2157         vc->rows = val;
2158     }
2159 }
2160
2161 static const TypeInfo qemu_console_info = {
2162     .name = TYPE_QEMU_CONSOLE,
2163     .parent = TYPE_OBJECT,
2164     .instance_size = sizeof(QemuConsole),
2165     .class_size = sizeof(QemuConsoleClass),
2166 };
2167
2168
2169 static void register_types(void)
2170 {
2171     type_register_static(&qemu_console_info);
2172     register_char_driver("vc", CHARDEV_BACKEND_KIND_VC, qemu_chr_parse_vc,
2173                          vc_init);
2174 }
2175
2176 type_init(register_types);