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-common.h"
  25 #include "ui/console.h"
  26 #include "hw/qdev-core.h"
  27 #include "qemu/timer.h"
  28 #include "qmp-commands.h"
  29 #include "sysemu/char.h"
  30
  31 //#define DEBUG_CONSOLE
  32 #define DEFAULT_BACKSCROLL 512
  33 #define MAX_CONSOLES 12
  34 #define CONSOLE_CURSOR_PERIOD 500
  35
  36 typedef struct TextAttributes {
  37     uint8_t fgcol:4;
  38     uint8_t bgcol:4;
  39     uint8_t bold:1;
  40     uint8_t uline:1;
  41     uint8_t blink:1;
  42     uint8_t invers:1;
  43     uint8_t unvisible:1;
  44 } TextAttributes;
  45
  46 typedef struct TextCell {
  47     uint8_t ch;
  48     TextAttributes t_attrib;
  49 } TextCell;
  50
  51 #define MAX_ESC_PARAMS 3
  52
  53 enum TTYState {
  54     TTY_STATE_NORM,
  55     TTY_STATE_ESC,
  56     TTY_STATE_CSI,
  57 };
  58
  59 typedef struct QEMUFIFO {
  60     uint8_t *buf;
  61     int buf_size;
  62     int count, wptr, rptr;
  63 } QEMUFIFO;
  64
  65 static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
  66 {
  67     int l, len;
  68
  69     l = f->buf_size - f->count;
  70     if (len1 > l)
  71         len1 = l;
  72     len = len1;
  73     while (len > 0) {
  74         l = f->buf_size - f->wptr;
  75         if (l > len)
  76             l = len;
  77         memcpy(f->buf + f->wptr, buf, l);
  78         f->wptr += l;
  79         if (f->wptr >= f->buf_size)
  80             f->wptr = 0;
  81         buf += l;
  82         len -= l;
  83     }
  84     f->count += len1;
  85     return len1;
  86 }
  87
  88 static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
  89 {
  90     int l, len;
  91
  92     if (len1 > f->count)
  93         len1 = f->count;
  94     len = len1;
  95     while (len > 0) {
  96         l = f->buf_size - f->rptr;
  97         if (l > len)
  98             l = len;
  99         memcpy(buf, f->buf + f->rptr, l);
 100         f->rptr += l;
 101         if (f->rptr >= f->buf_size)
 102             f->rptr = 0;
 103         buf += l;
 104         len -= l;
 105     }
 106     f->count -= len1;
 107     return len1;
 108 }
 109
 110 typedef enum {
 111     GRAPHIC_CONSOLE,
 112     TEXT_CONSOLE,
 113     TEXT_CONSOLE_FIXED_SIZE
 114 } console_type_t;
 115
 116 struct QemuConsole {
 117     Object parent;
 118
 119     int index;
 120     console_type_t console_type;
 121     DisplayState *ds;
 122     DisplaySurface *surface;
 123     int dcls;
 124
 125     /* Graphic console state.  */
 126     Object *device;
 127     const GraphicHwOps *hw_ops;
 128     void *hw;
 129
 130     /* Text console state */
 131     int width;
 132     int height;
 133     int total_height;
 134     int backscroll_height;
 135     int x, y;
 136     int x_saved, y_saved;
 137     int y_displayed;
 138     int y_base;
 139     TextAttributes t_attrib_default; /* default text attributes */
 140     TextAttributes t_attrib; /* currently active text attributes */
 141     TextCell *cells;
 142     int text_x[2], text_y[2], cursor_invalidate;
 143     int echo;
 144     bool cursor_visible_phase;
 145     QEMUTimer *cursor_timer;
 146
 147     int update_x0;
 148     int update_y0;
 149     int update_x1;
 150     int update_y1;
 151
 152     enum TTYState state;
 153     int esc_params[MAX_ESC_PARAMS];
 154     int nb_esc_params;
 155
 156     CharDriverState *chr;
 157     /* fifo for key pressed */
 158     QEMUFIFO out_fifo;
 159     uint8_t out_fifo_buf[16];
 160     QEMUTimer *kbd_timer;
 161 };
 162
 163 struct DisplayState {
 164     struct QEMUTimer *gui_timer;
 165     uint64_t last_update;
 166     uint64_t update_interval;
 167     bool refreshing;
 168     bool have_gfx;
 169     bool have_text;
 170
 171     QLIST_HEAD(, DisplayChangeListener) listeners;
 172 };
 173
 174 static DisplayState *display_state;
 175 static QemuConsole *active_console;
 176 static QemuConsole *consoles[MAX_CONSOLES];
 177 static int nb_consoles = 0;
 178
 179 static void text_console_do_init(CharDriverState *chr, DisplayState *ds);
 180 static void dpy_refresh(DisplayState *s);
 181 static DisplayState *get_alloc_displaystate(void);
 182
 183 static void gui_update(void *opaque)
 184 {
 185     uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
 186     uint64_t dcl_interval;
 187     DisplayState *ds = opaque;
 188     DisplayChangeListener *dcl;
 189     int i;
 190
 191     ds->refreshing = true;
 192     dpy_refresh(ds);
 193     ds->refreshing = false;
 194
 195     QLIST_FOREACH(dcl, &ds->listeners, next) {
 196         dcl_interval = dcl->update_interval ?
 197             dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
 198         if (interval > dcl_interval) {
 199             interval = dcl_interval;
 200         }
 201     }
 202     if (ds->update_interval != interval) {
 203         ds->update_interval = interval;
 204         for (i = 0; i < nb_consoles; i++) {
 205             if (consoles[i]->hw_ops->update_interval) {
 206                 consoles[i]->hw_ops->update_interval(consoles[i]->hw, interval);
 207             }
 208         }
 209         trace_console_refresh(interval);
 210     }
 211     ds->last_update = qemu_get_clock_ms(rt_clock);
 212     qemu_mod_timer(ds->gui_timer, ds->last_update + interval);
 213 }
 214
 215 static void gui_setup_refresh(DisplayState *ds)
 216 {
 217     DisplayChangeListener *dcl;
 218     bool need_timer = false;
 219     bool have_gfx = false;
 220     bool have_text = false;
 221
 222     QLIST_FOREACH(dcl, &ds->listeners, next) {
 223         if (dcl->ops->dpy_refresh != NULL) {
 224             need_timer = true;
 225         }
 226         if (dcl->ops->dpy_gfx_update != NULL) {
 227             have_gfx = true;
 228         }
 229         if (dcl->ops->dpy_text_update != NULL) {
 230             have_text = true;
 231         }
 232     }
 233
 234     if (need_timer && ds->gui_timer == NULL) {
 235         ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
 236         qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
 237     }
 238     if (!need_timer && ds->gui_timer != NULL) {
 239         qemu_del_timer(ds->gui_timer);
 240         qemu_free_timer(ds->gui_timer);
 241         ds->gui_timer = NULL;
 242     }
 243
 244     ds->have_gfx = have_gfx;
 245     ds->have_text = have_text;
 246 }
 247
 248 void graphic_hw_update(QemuConsole *con)
 249 {
 250     if (!con) {
 251         con = active_console;
 252     }
 253     if (con && con->hw_ops->gfx_update) {
 254         con->hw_ops->gfx_update(con->hw);
 255     }
 256 }
 257
 258 void graphic_hw_invalidate(QemuConsole *con)
 259 {
 260     if (!con) {
 261         con = active_console;
 262     }
 263     if (con && con->hw_ops->invalidate) {
 264         con->hw_ops->invalidate(con->hw);
 265     }
 266 }
 267
 268 static void ppm_save(const char *filename, struct DisplaySurface *ds,
 269                      Error **errp)
 270 {
 271     int width = pixman_image_get_width(ds->image);
 272     int height = pixman_image_get_height(ds->image);
 273     int fd;
 274     FILE *f;
 275     int y;
 276     int ret;
 277     pixman_image_t *linebuf;
 278
 279     trace_ppm_save(filename, ds);
 280     fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
 281     if (fd == -1) {
 282         error_setg(errp, "failed to open file '%s': %s", filename,
 283                    strerror(errno));
 284         return;
 285     }
 286     f = fdopen(fd, "wb");
 287     ret = fprintf(f, "P6\n%d %d\n%d\n", width, height, 255);
 288     if (ret < 0) {
 289         linebuf = NULL;
 290         goto write_err;
 291     }
 292     linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
 293     for (y = 0; y < height; y++) {
 294         qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
 295         clearerr(f);
 296         ret = fwrite(pixman_image_get_data(linebuf), 1,
 297                      pixman_image_get_stride(linebuf), f);
 298         (void)ret;
 299         if (ferror(f)) {
 300             goto write_err;
 301         }
 302     }
 303
 304 out:
 305     qemu_pixman_image_unref(linebuf);
 306     fclose(f);
 307     return;
 308
 309 write_err:
 310     error_setg(errp, "failed to write to file '%s': %s", filename,
 311                strerror(errno));
 312     unlink(filename);
 313     goto out;
 314 }
 315
 316 void qmp_screendump(const char *filename, Error **errp)
 317 {
 318     QemuConsole *con = qemu_console_lookup_by_index(0);
 319     DisplaySurface *surface;
 320
 321     if (con == NULL) {
 322         error_setg(errp, "There is no QemuConsole I can screendump from.");
 323         return;
 324     }
 325
 326     graphic_hw_update(con);
 327     surface = qemu_console_surface(con);
 328     ppm_save(filename, surface, errp);
 329 }
 330
 331 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
 332 {
 333     if (!con) {
 334         con = active_console;
 335     }
 336     if (con && con->hw_ops->text_update) {
 337         con->hw_ops->text_update(con->hw, chardata);
 338     }
 339 }
 340
 341 static void vga_fill_rect(QemuConsole *con,
 342                           int posx, int posy, int width, int height,
 343                           pixman_color_t color)
 344 {
 345     DisplaySurface *surface = qemu_console_surface(con);
 346     pixman_rectangle16_t rect = {
 347         .x = posx, .y = posy, .width = width, .height = height
 348     };
 349
 350     pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
 351                                  &color, 1, &rect);
 352 }
 353
 354 /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
 355 static void vga_bitblt(QemuConsole *con,
 356                        int xs, int ys, int xd, int yd, int w, int h)
 357 {
 358     DisplaySurface *surface = qemu_console_surface(con);
 359
 360     pixman_image_composite(PIXMAN_OP_SRC,
 361                            surface->image, NULL, surface->image,
 362                            xs, ys, 0, 0, xd, yd, w, h);
 363 }
 364
 365 /***********************************************************/
 366 /* basic char display */
 367
 368 #define FONT_HEIGHT 16
 369 #define FONT_WIDTH 8
 370
 371 #include "vgafont.h"
 372
 373 #ifndef CONFIG_CURSES
 374 enum color_names {
 375     COLOR_BLACK   = 0,
 376     COLOR_RED     = 1,
 377     COLOR_GREEN   = 2,
 378     COLOR_YELLOW  = 3,
 379     COLOR_BLUE    = 4,
 380     COLOR_MAGENTA = 5,
 381     COLOR_CYAN    = 6,
 382     COLOR_WHITE   = 7
 383 };
 384 #endif
 385
 386 #define QEMU_RGB(r, g, b)                                               \
 387     { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
 388
 389 static const pixman_color_t color_table_rgb[2][8] = {
 390     {   /* dark */
 391         QEMU_RGB(0x00, 0x00, 0x00),  /* black */
 392         QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
 393         QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
 394         QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
 395         QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
 396         QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
 397         QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
 398         QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
 399     },
 400     {   /* bright */
 401         QEMU_RGB(0x00, 0x00, 0x00),  /* black */
 402         QEMU_RGB(0xff, 0x00, 0x00),  /* red */
 403         QEMU_RGB(0x00, 0xff, 0x00),  /* green */
 404         QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
 405         QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
 406         QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
 407         QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
 408         QEMU_RGB(0xff, 0xff, 0xff),  /* white */
 409     }
 410 };
 411
 412 #ifdef DEBUG_CONSOLE
 413 static void console_print_text_attributes(TextAttributes *t_attrib, char ch)
 414 {
 415     if (t_attrib->bold) {
 416         printf("b");
 417     } else {
 418         printf(" ");
 419     }
 420     if (t_attrib->uline) {
 421         printf("u");
 422     } else {
 423         printf(" ");
 424     }
 425     if (t_attrib->blink) {
 426         printf("l");
 427     } else {
 428         printf(" ");
 429     }
 430     if (t_attrib->invers) {
 431         printf("i");
 432     } else {
 433         printf(" ");
 434     }
 435     if (t_attrib->unvisible) {
 436         printf("n");
 437     } else {
 438         printf(" ");
 439     }
 440
 441     printf(" fg: %d bg: %d ch:'%2X' '%c'\n", t_attrib->fgcol, t_attrib->bgcol, ch, ch);
 442 }
 443 #endif
 444
 445 static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
 446                           TextAttributes *t_attrib)
 447 {
 448     static pixman_image_t *glyphs[256];
 449     DisplaySurface *surface = qemu_console_surface(s);
 450     pixman_color_t fgcol, bgcol;
 451
 452     if (t_attrib->invers) {
 453         bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
 454         fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
 455     } else {
 456         fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
 457         bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
 458     }
 459
 460     if (!glyphs[ch]) {
 461         glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
 462     }
 463     qemu_pixman_glyph_render(glyphs[ch], surface->image,
 464                              &fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
 465 }
 466
 467 static void text_console_resize(QemuConsole *s)
 468 {
 469     TextCell *cells, *c, *c1;
 470     int w1, x, y, last_width;
 471
 472     last_width = s->width;
 473     s->width = surface_width(s->surface) / FONT_WIDTH;
 474     s->height = surface_height(s->surface) / FONT_HEIGHT;
 475
 476     w1 = last_width;
 477     if (s->width < w1)
 478         w1 = s->width;
 479
 480     cells = g_malloc(s->width * s->total_height * sizeof(TextCell));
 481     for(y = 0; y < s->total_height; y++) {
 482         c = &cells[y * s->width];
 483         if (w1 > 0) {
 484             c1 = &s->cells[y * last_width];
 485             for(x = 0; x < w1; x++) {
 486                 *c++ = *c1++;
 487             }
 488         }
 489         for(x = w1; x < s->width; x++) {
 490             c->ch = ' ';
 491             c->t_attrib = s->t_attrib_default;
 492             c++;
 493         }
 494     }
 495     g_free(s->cells);
 496     s->cells = cells;
 497 }
 498
 499 static inline void text_update_xy(QemuConsole *s, int x, int y)
 500 {
 501     s->text_x[0] = MIN(s->text_x[0], x);
 502     s->text_x[1] = MAX(s->text_x[1], x);
 503     s->text_y[0] = MIN(s->text_y[0], y);
 504     s->text_y[1] = MAX(s->text_y[1], y);
 505 }
 506
 507 static void invalidate_xy(QemuConsole *s, int x, int y)
 508 {
 509     if (s->update_x0 > x * FONT_WIDTH)
 510         s->update_x0 = x * FONT_WIDTH;
 511     if (s->update_y0 > y * FONT_HEIGHT)
 512         s->update_y0 = y * FONT_HEIGHT;
 513     if (s->update_x1 < (x + 1) * FONT_WIDTH)
 514         s->update_x1 = (x + 1) * FONT_WIDTH;
 515     if (s->update_y1 < (y + 1) * FONT_HEIGHT)
 516         s->update_y1 = (y + 1) * FONT_HEIGHT;
 517 }
 518
 519 static void update_xy(QemuConsole *s, int x, int y)
 520 {
 521     TextCell *c;
 522     int y1, y2;
 523
 524     if (!qemu_console_is_visible(s)) {
 525         return;
 526     }
 527
 528     if (s->ds->have_text) {
 529         text_update_xy(s, x, y);
 530     }
 531
 532     if (s->ds->have_gfx) {
 533         y1 = (s->y_base + y) % s->total_height;
 534         y2 = y1 - s->y_displayed;
 535         if (y2 < 0)
 536             y2 += s->total_height;
 537         if (y2 < s->height) {
 538             c = &s->cells[y1 * s->width + x];
 539             vga_putcharxy(s, x, y2, c->ch,
 540                           &(c->t_attrib));
 541             invalidate_xy(s, x, y2);
 542         }
 543     }
 544 }
 545
 546 static void console_show_cursor(QemuConsole *s, int show)
 547 {
 548     TextCell *c;
 549     int y, y1;
 550     int x = s->x;
 551
 552     if (!qemu_console_is_visible(s)) {
 553         return;
 554     }
 555
 556     if (s->ds->have_text) {
 557         s->cursor_invalidate = 1;
 558     }
 559
 560     if (s->ds->have_gfx) {
 561         if (x >= s->width) {
 562             x = s->width - 1;
 563         }
 564         y1 = (s->y_base + s->y) % s->total_height;
 565         y = y1 - s->y_displayed;
 566         if (y < 0)
 567             y += s->total_height;
 568         if (y < s->height) {
 569             c = &s->cells[y1 * s->width + x];
 570             if (show && s->cursor_visible_phase) {
 571                 TextAttributes t_attrib = s->t_attrib_default;
 572                 t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
 573                 vga_putcharxy(s, x, y, c->ch, &t_attrib);
 574             } else {
 575                 vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
 576             }
 577             invalidate_xy(s, x, y);
 578         }
 579     }
 580 }
 581
 582 static void console_refresh(QemuConsole *s)
 583 {
 584     DisplaySurface *surface = qemu_console_surface(s);
 585     TextCell *c;
 586     int x, y, y1;
 587
 588     if (!qemu_console_is_visible(s)) {
 589         return;
 590     }
 591
 592     if (s->ds->have_text) {
 593         s->text_x[0] = 0;
 594         s->text_y[0] = 0;
 595         s->text_x[1] = s->width - 1;
 596         s->text_y[1] = s->height - 1;
 597         s->cursor_invalidate = 1;
 598     }
 599
 600     if (s->ds->have_gfx) {
 601         vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
 602                       color_table_rgb[0][COLOR_BLACK]);
 603         y1 = s->y_displayed;
 604         for (y = 0; y < s->height; y++) {
 605             c = s->cells + y1 * s->width;
 606             for (x = 0; x < s->width; x++) {
 607                 vga_putcharxy(s, x, y, c->ch,
 608                               &(c->t_attrib));
 609                 c++;
 610             }
 611             if (++y1 == s->total_height) {
 612                 y1 = 0;
 613             }
 614         }
 615         console_show_cursor(s, 1);
 616         dpy_gfx_update(s, 0, 0,
 617                        surface_width(surface), surface_height(surface));
 618     }
 619 }
 620
 621 static void console_scroll(QemuConsole *s, int ydelta)
 622 {
 623     int i, y1;
 624
 625     if (ydelta > 0) {
 626         for(i = 0; i < ydelta; i++) {
 627             if (s->y_displayed == s->y_base)
 628                 break;
 629             if (++s->y_displayed == s->total_height)
 630                 s->y_displayed = 0;
 631         }
 632     } else {
 633         ydelta = -ydelta;
 634         i = s->backscroll_height;
 635         if (i > s->total_height - s->height)
 636             i = s->total_height - s->height;
 637         y1 = s->y_base - i;
 638         if (y1 < 0)
 639             y1 += s->total_height;
 640         for(i = 0; i < ydelta; i++) {
 641             if (s->y_displayed == y1)
 642                 break;
 643             if (--s->y_displayed < 0)
 644                 s->y_displayed = s->total_height - 1;
 645         }
 646     }
 647     console_refresh(s);
 648 }
 649
 650 static void console_put_lf(QemuConsole *s)
 651 {
 652     TextCell *c;
 653     int x, y1;
 654
 655     s->y++;
 656     if (s->y >= s->height) {
 657         s->y = s->height - 1;
 658
 659         if (s->y_displayed == s->y_base) {
 660             if (++s->y_displayed == s->total_height)
 661                 s->y_displayed = 0;
 662         }
 663         if (++s->y_base == s->total_height)
 664             s->y_base = 0;
 665         if (s->backscroll_height < s->total_height)
 666             s->backscroll_height++;
 667         y1 = (s->y_base + s->height - 1) % s->total_height;
 668         c = &s->cells[y1 * s->width];
 669         for(x = 0; x < s->width; x++) {
 670             c->ch = ' ';
 671             c->t_attrib = s->t_attrib_default;
 672             c++;
 673         }
 674         if (qemu_console_is_visible(s) && s->y_displayed == s->y_base) {
 675             if (s->ds->have_text) {
 676                 s->text_x[0] = 0;
 677                 s->text_y[0] = 0;
 678                 s->text_x[1] = s->width - 1;
 679                 s->text_y[1] = s->height - 1;
 680             }
 681
 682             if (s->ds->have_gfx) {
 683                 vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
 684                            s->width * FONT_WIDTH,
 685                            (s->height - 1) * FONT_HEIGHT);
 686                 vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
 687                               s->width * FONT_WIDTH, FONT_HEIGHT,
 688                               color_table_rgb[0][s->t_attrib_default.bgcol]);
 689                 s->update_x0 = 0;
 690                 s->update_y0 = 0;
 691                 s->update_x1 = s->width * FONT_WIDTH;
 692                 s->update_y1 = s->height * FONT_HEIGHT;
 693             }
 694         }
 695     }
 696 }
 697
 698 /* Set console attributes depending on the current escape codes.
 699  * NOTE: I know this code is not very efficient (checking every color for it
 700  * self) but it is more readable and better maintainable.
 701  */
 702 static void console_handle_escape(QemuConsole *s)
 703 {
 704     int i;
 705
 706     for (i=0; i<s->nb_esc_params; i++) {
 707         switch (s->esc_params[i]) {
 708             case 0: /* reset all console attributes to default */
 709                 s->t_attrib = s->t_attrib_default;
 710                 break;
 711             case 1:
 712                 s->t_attrib.bold = 1;
 713                 break;
 714             case 4:
 715                 s->t_attrib.uline = 1;
 716                 break;
 717             case 5:
 718                 s->t_attrib.blink = 1;
 719                 break;
 720             case 7:
 721                 s->t_attrib.invers = 1;
 722                 break;
 723             case 8:
 724                 s->t_attrib.unvisible = 1;
 725                 break;
 726             case 22:
 727                 s->t_attrib.bold = 0;
 728                 break;
 729             case 24:
 730                 s->t_attrib.uline = 0;
 731                 break;
 732             case 25:
 733                 s->t_attrib.blink = 0;
 734                 break;
 735             case 27:
 736                 s->t_attrib.invers = 0;
 737                 break;
 738             case 28:
 739                 s->t_attrib.unvisible = 0;
 740                 break;
 741             /* set foreground color */
 742             case 30:
 743                 s->t_attrib.fgcol=COLOR_BLACK;
 744                 break;
 745             case 31:
 746                 s->t_attrib.fgcol=COLOR_RED;
 747                 break;
 748             case 32:
 749                 s->t_attrib.fgcol=COLOR_GREEN;
 750                 break;
 751             case 33:
 752                 s->t_attrib.fgcol=COLOR_YELLOW;
 753                 break;
 754             case 34:
 755                 s->t_attrib.fgcol=COLOR_BLUE;
 756                 break;
 757             case 35:
 758                 s->t_attrib.fgcol=COLOR_MAGENTA;
 759                 break;
 760             case 36:
 761                 s->t_attrib.fgcol=COLOR_CYAN;
 762                 break;
 763             case 37:
 764                 s->t_attrib.fgcol=COLOR_WHITE;
 765                 break;
 766             /* set background color */
 767             case 40:
 768                 s->t_attrib.bgcol=COLOR_BLACK;
 769                 break;
 770             case 41:
 771                 s->t_attrib.bgcol=COLOR_RED;
 772                 break;
 773             case 42:
 774                 s->t_attrib.bgcol=COLOR_GREEN;
 775                 break;
 776             case 43:
 777                 s->t_attrib.bgcol=COLOR_YELLOW;
 778                 break;
 779             case 44:
 780                 s->t_attrib.bgcol=COLOR_BLUE;
 781                 break;
 782             case 45:
 783                 s->t_attrib.bgcol=COLOR_MAGENTA;
 784                 break;
 785             case 46:
 786                 s->t_attrib.bgcol=COLOR_CYAN;
 787                 break;
 788             case 47:
 789                 s->t_attrib.bgcol=COLOR_WHITE;
 790                 break;
 791         }
 792     }
 793 }
 794
 795 static void console_clear_xy(QemuConsole *s, int x, int y)
 796 {
 797     int y1 = (s->y_base + y) % s->total_height;
 798     TextCell *c = &s->cells[y1 * s->width + x];
 799     c->ch = ' ';
 800     c->t_attrib = s->t_attrib_default;
 801     update_xy(s, x, y);
 802 }
 803
 804 /* set cursor, checking bounds */
 805 static void set_cursor(QemuConsole *s, int x, int y)
 806 {
 807     if (x < 0) {
 808         x = 0;
 809     }
 810     if (y < 0) {
 811         y = 0;
 812     }
 813     if (y >= s->height) {
 814         y = s->height - 1;
 815     }
 816     if (x >= s->width) {
 817         x = s->width - 1;
 818     }
 819
 820     s->x = x;
 821     s->y = y;
 822 }
 823
 824 static void console_putchar(QemuConsole *s, int ch)
 825 {
 826     TextCell *c;
 827     int y1, i;
 828     int x, y;
 829
 830     switch(s->state) {
 831     case TTY_STATE_NORM:
 832         switch(ch) {
 833         case '\r':  /* carriage return */
 834             s->x = 0;
 835             break;
 836         case '\n':  /* newline */
 837             console_put_lf(s);
 838             break;
 839         case '\b':  /* backspace */
 840             if (s->x > 0)
 841                 s->x--;
 842             break;
 843         case '\t':  /* tabspace */
 844             if (s->x + (8 - (s->x % 8)) > s->width) {
 845                 s->x = 0;
 846                 console_put_lf(s);
 847             } else {
 848                 s->x = s->x + (8 - (s->x % 8));
 849             }
 850             break;
 851         case '\a':  /* alert aka. bell */
 852             /* TODO: has to be implemented */
 853             break;
 854         case 14:
 855             /* SI (shift in), character set 0 (ignored) */
 856             break;
 857         case 15:
 858             /* SO (shift out), character set 1 (ignored) */
 859             break;
 860         case 27:    /* esc (introducing an escape sequence) */
 861             s->state = TTY_STATE_ESC;
 862             break;
 863         default:
 864             if (s->x >= s->width) {
 865                 /* line wrap */
 866                 s->x = 0;
 867                 console_put_lf(s);
 868             }
 869             y1 = (s->y_base + s->y) % s->total_height;
 870             c = &s->cells[y1 * s->width + s->x];
 871             c->ch = ch;
 872             c->t_attrib = s->t_attrib;
 873             update_xy(s, s->x, s->y);
 874             s->x++;
 875             break;
 876         }
 877         break;
 878     case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
 879         if (ch == '[') {
 880             for(i=0;i<MAX_ESC_PARAMS;i++)
 881                 s->esc_params[i] = 0;
 882             s->nb_esc_params = 0;
 883             s->state = TTY_STATE_CSI;
 884         } else {
 885             s->state = TTY_STATE_NORM;
 886         }
 887         break;
 888     case TTY_STATE_CSI: /* handle escape sequence parameters */
 889         if (ch >= '0' && ch <= '9') {
 890             if (s->nb_esc_params < MAX_ESC_PARAMS) {
 891                 int *param = &s->esc_params[s->nb_esc_params];
 892                 int digit = (ch - '0');
 893
 894                 *param = (*param <= (INT_MAX - digit) / 10) ?
 895                          *param * 10 + digit : INT_MAX;
 896             }
 897         } else {
 898             if (s->nb_esc_params < MAX_ESC_PARAMS)
 899                 s->nb_esc_params++;
 900             if (ch == ';')
 901                 break;
 902 #ifdef DEBUG_CONSOLE
 903             fprintf(stderr, "escape sequence CSI%d;%d%c, %d parameters\n",
 904                     s->esc_params[0], s->esc_params[1], ch, s->nb_esc_params);
 905 #endif
 906             s->state = TTY_STATE_NORM;
 907             switch(ch) {
 908             case 'A':
 909                 /* move cursor up */
 910                 if (s->esc_params[0] == 0) {
 911                     s->esc_params[0] = 1;
 912                 }
 913                 set_cursor(s, s->x, s->y - s->esc_params[0]);
 914                 break;
 915             case 'B':
 916                 /* move cursor down */
 917                 if (s->esc_params[0] == 0) {
 918                     s->esc_params[0] = 1;
 919                 }
 920                 set_cursor(s, s->x, s->y + s->esc_params[0]);
 921                 break;
 922             case 'C':
 923                 /* move cursor right */
 924                 if (s->esc_params[0] == 0) {
 925                     s->esc_params[0] = 1;
 926                 }
 927                 set_cursor(s, s->x + s->esc_params[0], s->y);
 928                 break;
 929             case 'D':
 930                 /* move cursor left */
 931                 if (s->esc_params[0] == 0) {
 932                     s->esc_params[0] = 1;
 933                 }
 934                 set_cursor(s, s->x - s->esc_params[0], s->y);
 935                 break;
 936             case 'G':
 937                 /* move cursor to column */
 938                 set_cursor(s, s->esc_params[0] - 1, s->y);
 939                 break;
 940             case 'f':
 941             case 'H':
 942                 /* move cursor to row, column */
 943                 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
 944                 break;
 945             case 'J':
 946                 switch (s->esc_params[0]) {
 947                 case 0:
 948                     /* clear to end of screen */
 949                     for (y = s->y; y < s->height; y++) {
 950                         for (x = 0; x < s->width; x++) {
 951                             if (y == s->y && x < s->x) {
 952                                 continue;
 953                             }
 954                             console_clear_xy(s, x, y);
 955                         }
 956                     }
 957                     break;
 958                 case 1:
 959                     /* clear from beginning of screen */
 960                     for (y = 0; y <= s->y; y++) {
 961                         for (x = 0; x < s->width; x++) {
 962                             if (y == s->y && x > s->x) {
 963                                 break;
 964                             }
 965                             console_clear_xy(s, x, y);
 966                         }
 967                     }
 968                     break;
 969                 case 2:
 970                     /* clear entire screen */
 971                     for (y = 0; y <= s->height; y++) {
 972                         for (x = 0; x < s->width; x++) {
 973                             console_clear_xy(s, x, y);
 974                         }
 975                     }
 976                     break;
 977                 }
 978                 break;
 979             case 'K':
 980                 switch (s->esc_params[0]) {
 981                 case 0:
 982                     /* clear to eol */
 983                     for(x = s->x; x < s->width; x++) {
 984                         console_clear_xy(s, x, s->y);
 985                     }
 986                     break;
 987                 case 1:
 988                     /* clear from beginning of line */
 989                     for (x = 0; x <= s->x; x++) {
 990                         console_clear_xy(s, x, s->y);
 991                     }
 992                     break;
 993                 case 2:
 994                     /* clear entire line */
 995                     for(x = 0; x < s->width; x++) {
 996                         console_clear_xy(s, x, s->y);
 997                     }
 998                     break;
 999                 }
1000                 break;
1001             case 'm':
1002                 console_handle_escape(s);
1003                 break;
1004             case 'n':
1005                 /* report cursor position */
1006                 /* TODO: send ESC[row;colR */
1007                 break;
1008             case 's':
1009                 /* save cursor position */
1010                 s->x_saved = s->x;
1011                 s->y_saved = s->y;
1012                 break;
1013             case 'u':
1014                 /* restore cursor position */
1015                 s->x = s->x_saved;
1016                 s->y = s->y_saved;
1017                 break;
1018             default:
1019 #ifdef DEBUG_CONSOLE
1020                 fprintf(stderr, "unhandled escape character '%c'\n", ch);
1021 #endif
1022                 break;
1023             }
1024             break;
1025         }
1026     }
1027 }
1028
1029 void console_select(unsigned int index)
1030 {
1031     DisplayChangeListener *dcl;
1032     QemuConsole *s;
1033
1034     if (index >= MAX_CONSOLES)
1035         return;
1036
1037     trace_console_select(index);
1038     s = qemu_console_lookup_by_index(index);
1039     if (s) {
1040         DisplayState *ds = s->ds;
1041
1042         if (active_console && active_console->cursor_timer) {
1043             qemu_del_timer(active_console->cursor_timer);
1044         }
1045         active_console = s;
1046         if (ds->have_gfx) {
1047             QLIST_FOREACH(dcl, &ds->listeners, next) {
1048                 if (dcl->con != NULL) {
1049                     continue;
1050                 }
1051                 if (dcl->ops->dpy_gfx_switch) {
1052                     dcl->ops->dpy_gfx_switch(dcl, s->surface);
1053                 }
1054             }
1055             dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1056                            surface_height(s->surface));
1057         }
1058         if (ds->have_text) {
1059             dpy_text_resize(s, s->width, s->height);
1060         }
1061         if (s->cursor_timer) {
1062             qemu_mod_timer(s->cursor_timer,
1063                    qemu_get_clock_ms(rt_clock) + CONSOLE_CURSOR_PERIOD / 2);
1064         }
1065     }
1066 }
1067
1068 static int console_puts(CharDriverState *chr, const uint8_t *buf, int len)
1069 {
1070     QemuConsole *s = chr->opaque;
1071     int i;
1072
1073     s->update_x0 = s->width * FONT_WIDTH;
1074     s->update_y0 = s->height * FONT_HEIGHT;
1075     s->update_x1 = 0;
1076     s->update_y1 = 0;
1077     console_show_cursor(s, 0);
1078     for(i = 0; i < len; i++) {
1079         console_putchar(s, buf[i]);
1080     }
1081     console_show_cursor(s, 1);
1082     if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1083         dpy_gfx_update(s, s->update_x0, s->update_y0,
1084                        s->update_x1 - s->update_x0,
1085                        s->update_y1 - s->update_y0);
1086     }
1087     return len;
1088 }
1089
1090 static void kbd_send_chars(void *opaque)
1091 {
1092     QemuConsole *s = opaque;
1093     int len;
1094     uint8_t buf[16];
1095
1096     len = qemu_chr_be_can_write(s->chr);
1097     if (len > s->out_fifo.count)
1098         len = s->out_fifo.count;
1099     if (len > 0) {
1100         if (len > sizeof(buf))
1101             len = sizeof(buf);
1102         qemu_fifo_read(&s->out_fifo, buf, len);
1103         qemu_chr_be_write(s->chr, buf, len);
1104     }
1105     /* characters are pending: we send them a bit later (XXX:
1106        horrible, should change char device API) */
1107     if (s->out_fifo.count > 0) {
1108         qemu_mod_timer(s->kbd_timer, qemu_get_clock_ms(rt_clock) + 1);
1109     }
1110 }
1111
1112 /* called when an ascii key is pressed */
1113 void kbd_put_keysym(int keysym)
1114 {
1115     QemuConsole *s;
1116     uint8_t buf[16], *q;
1117     int c;
1118
1119     s = active_console;
1120     if (!s || (s->console_type == GRAPHIC_CONSOLE))
1121         return;
1122
1123     switch(keysym) {
1124     case QEMU_KEY_CTRL_UP:
1125         console_scroll(s, -1);
1126         break;
1127     case QEMU_KEY_CTRL_DOWN:
1128         console_scroll(s, 1);
1129         break;
1130     case QEMU_KEY_CTRL_PAGEUP:
1131         console_scroll(s, -10);
1132         break;
1133     case QEMU_KEY_CTRL_PAGEDOWN:
1134         console_scroll(s, 10);
1135         break;
1136     default:
1137         /* convert the QEMU keysym to VT100 key string */
1138         q = buf;
1139         if (keysym >= 0xe100 && keysym <= 0xe11f) {
1140             *q++ = '\033';
1141             *q++ = '[';
1142             c = keysym - 0xe100;
1143             if (c >= 10)
1144                 *q++ = '0' + (c / 10);
1145             *q++ = '0' + (c % 10);
1146             *q++ = '~';
1147         } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1148             *q++ = '\033';
1149             *q++ = '[';
1150             *q++ = keysym & 0xff;
1151         } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1152             console_puts(s->chr, (const uint8_t *) "\r", 1);
1153             *q++ = '\n';
1154         } else {
1155             *q++ = keysym;
1156         }
1157         if (s->echo) {
1158             console_puts(s->chr, buf, q - buf);
1159         }
1160         if (s->chr->chr_read) {
1161             qemu_fifo_write(&s->out_fifo, buf, q - buf);
1162             kbd_send_chars(s);
1163         }
1164         break;
1165     }
1166 }
1167
1168 static void text_console_invalidate(void *opaque)
1169 {
1170     QemuConsole *s = (QemuConsole *) opaque;
1171
1172     if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1173         text_console_resize(s);
1174     }
1175     console_refresh(s);
1176 }
1177
1178 static void text_console_update(void *opaque, console_ch_t *chardata)
1179 {
1180     QemuConsole *s = (QemuConsole *) opaque;
1181     int i, j, src;
1182
1183     if (s->text_x[0] <= s->text_x[1]) {
1184         src = (s->y_base + s->text_y[0]) * s->width;
1185         chardata += s->text_y[0] * s->width;
1186         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1187             for (j = 0; j < s->width; j ++, src ++)
1188                 console_write_ch(chardata ++, s->cells[src].ch |
1189                                 (s->cells[src].t_attrib.fgcol << 12) |
1190                                 (s->cells[src].t_attrib.bgcol << 8) |
1191                                 (s->cells[src].t_attrib.bold << 21));
1192         dpy_text_update(s, s->text_x[0], s->text_y[0],
1193                         s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1194         s->text_x[0] = s->width;
1195         s->text_y[0] = s->height;
1196         s->text_x[1] = 0;
1197         s->text_y[1] = 0;
1198     }
1199     if (s->cursor_invalidate) {
1200         dpy_text_cursor(s, s->x, s->y);
1201         s->cursor_invalidate = 0;
1202     }
1203 }
1204
1205 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type)
1206 {
1207     Error *local_err = NULL;
1208     Object *obj;
1209     QemuConsole *s;
1210     int i;
1211
1212     if (nb_consoles >= MAX_CONSOLES)
1213         return NULL;
1214
1215     obj = object_new(TYPE_QEMU_CONSOLE);
1216     s = QEMU_CONSOLE(obj);
1217     object_property_add_link(obj, "device", TYPE_DEVICE,
1218                              (Object **)&s->device, &local_err);
1219
1220     if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1221         (console_type == GRAPHIC_CONSOLE))) {
1222         active_console = s;
1223     }
1224     s->ds = ds;
1225     s->console_type = console_type;
1226     if (console_type != GRAPHIC_CONSOLE) {
1227         s->index = nb_consoles;
1228         consoles[nb_consoles++] = s;
1229     } else {
1230         /* HACK: Put graphical consoles before text consoles.  */
1231         for (i = nb_consoles; i > 0; i--) {
1232             if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
1233                 break;
1234             consoles[i] = consoles[i - 1];
1235             consoles[i]->index = i;
1236         }
1237         s->index = i;
1238         consoles[i] = s;
1239         nb_consoles++;
1240     }
1241     return s;
1242 }
1243
1244 static void qemu_alloc_display(DisplaySurface *surface, int width, int height,
1245                                int linesize, PixelFormat pf, int newflags)
1246 {
1247     surface->pf = pf;
1248
1249     qemu_pixman_image_unref(surface->image);
1250     surface->image = NULL;
1251
1252     surface->format = qemu_pixman_get_format(&pf);
1253     assert(surface->format != 0);
1254     surface->image = pixman_image_create_bits(surface->format,
1255                                               width, height,
1256                                               NULL, linesize);
1257     assert(surface->image != NULL);
1258
1259     surface->flags = newflags | QEMU_ALLOCATED_FLAG;
1260 #ifdef HOST_WORDS_BIGENDIAN
1261     surface->flags |= QEMU_BIG_ENDIAN_FLAG;
1262 #endif
1263 }
1264
1265 DisplaySurface *qemu_create_displaysurface(int width, int height)
1266 {
1267     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1268     int linesize = width * 4;
1269
1270     trace_displaysurface_create(surface, width, height);
1271     qemu_alloc_display(surface, width, height, linesize,
1272                        qemu_default_pixelformat(32), 0);
1273     return surface;
1274 }
1275
1276 DisplaySurface *qemu_create_displaysurface_from(int width, int height, int bpp,
1277                                                 int linesize, uint8_t *data,
1278                                                 bool byteswap)
1279 {
1280     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1281
1282     trace_displaysurface_create_from(surface, width, height, bpp, byteswap);
1283     if (byteswap) {
1284         surface->pf = qemu_different_endianness_pixelformat(bpp);
1285     } else {
1286         surface->pf = qemu_default_pixelformat(bpp);
1287     }
1288
1289     surface->format = qemu_pixman_get_format(&surface->pf);
1290     assert(surface->format != 0);
1291     surface->image = pixman_image_create_bits(surface->format,
1292                                               width, height,
1293                                               (void *)data, linesize);
1294     assert(surface->image != NULL);
1295
1296 #ifdef HOST_WORDS_BIGENDIAN
1297     surface->flags = QEMU_BIG_ENDIAN_FLAG;
1298 #endif
1299
1300     return surface;
1301 }
1302
1303 static DisplaySurface *qemu_create_dummy_surface(void)
1304 {
1305     static const char msg[] =
1306         "This VM has no graphic display device.";
1307     DisplaySurface *surface = qemu_create_displaysurface(640, 480);
1308     pixman_color_t bg = color_table_rgb[0][COLOR_BLACK];
1309     pixman_color_t fg = color_table_rgb[0][COLOR_WHITE];
1310     pixman_image_t *glyph;
1311     int len, x, y, i;
1312
1313     len = strlen(msg);
1314     x = (640/FONT_WIDTH  - len) / 2;
1315     y = (480/FONT_HEIGHT - 1)   / 2;
1316     for (i = 0; i < len; i++) {
1317         glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1318         qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1319                                  x+i, y, FONT_WIDTH, FONT_HEIGHT);
1320         qemu_pixman_image_unref(glyph);
1321     }
1322     return surface;
1323 }
1324
1325 void qemu_free_displaysurface(DisplaySurface *surface)
1326 {
1327     if (surface == NULL) {
1328         return;
1329     }
1330     trace_displaysurface_free(surface);
1331     qemu_pixman_image_unref(surface->image);
1332     g_free(surface);
1333 }
1334
1335 void register_displaychangelistener(DisplayChangeListener *dcl)
1336 {
1337     static DisplaySurface *dummy;
1338     QemuConsole *con;
1339
1340     trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1341     dcl->ds = get_alloc_displaystate();
1342     QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1343     gui_setup_refresh(dcl->ds);
1344     if (dcl->con) {
1345         dcl->con->dcls++;
1346         con = dcl->con;
1347     } else {
1348         con = active_console;
1349     }
1350     if (dcl->ops->dpy_gfx_switch) {
1351         if (con) {
1352             dcl->ops->dpy_gfx_switch(dcl, con->surface);
1353         } else {
1354             if (!dummy) {
1355                 dummy = qemu_create_dummy_surface();
1356             }
1357             dcl->ops->dpy_gfx_switch(dcl, dummy);
1358         }
1359     }
1360 }
1361
1362 void update_displaychangelistener(DisplayChangeListener *dcl,
1363                                   uint64_t interval)
1364 {
1365     DisplayState *ds = dcl->ds;
1366
1367     dcl->update_interval = interval;
1368     if (!ds->refreshing && ds->update_interval > interval) {
1369         qemu_mod_timer(ds->gui_timer, ds->last_update + interval);
1370     }
1371 }
1372
1373 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1374 {
1375     DisplayState *ds = dcl->ds;
1376     trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1377     if (dcl->con) {
1378         dcl->con->dcls--;
1379     }
1380     QLIST_REMOVE(dcl, next);
1381     gui_setup_refresh(ds);
1382 }
1383
1384 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1385 {
1386     DisplayState *s = con->ds;
1387     DisplayChangeListener *dcl;
1388     int width = surface_width(con->surface);
1389     int height = surface_height(con->surface);
1390
1391     x = MAX(x, 0);
1392     y = MAX(y, 0);
1393     x = MIN(x, width);
1394     y = MIN(y, height);
1395     w = MIN(w, width - x);
1396     h = MIN(h, height - y);
1397
1398     if (!qemu_console_is_visible(con)) {
1399         return;
1400     }
1401     QLIST_FOREACH(dcl, &s->listeners, next) {
1402         if (con != (dcl->con ? dcl->con : active_console)) {
1403             continue;
1404         }
1405         if (dcl->ops->dpy_gfx_update) {
1406             dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1407         }
1408     }
1409 }
1410
1411 void dpy_gfx_replace_surface(QemuConsole *con,
1412                              DisplaySurface *surface)
1413 {
1414     DisplayState *s = con->ds;
1415     DisplaySurface *old_surface = con->surface;
1416     DisplayChangeListener *dcl;
1417
1418     con->surface = surface;
1419     QLIST_FOREACH(dcl, &s->listeners, next) {
1420         if (con != (dcl->con ? dcl->con : active_console)) {
1421             continue;
1422         }
1423         if (dcl->ops->dpy_gfx_switch) {
1424             dcl->ops->dpy_gfx_switch(dcl, surface);
1425         }
1426     }
1427     qemu_free_displaysurface(old_surface);
1428 }
1429
1430 void dpy_refresh(DisplayState *s)
1431 {
1432     DisplayChangeListener *dcl;
1433
1434     QLIST_FOREACH(dcl, &s->listeners, next) {
1435         if (dcl->ops->dpy_refresh) {
1436             dcl->ops->dpy_refresh(dcl);
1437         }
1438     }
1439 }
1440
1441 void dpy_gfx_copy(QemuConsole *con, int src_x, int src_y,
1442                   int dst_x, int dst_y, int w, int h)
1443 {
1444     DisplayState *s = con->ds;
1445     DisplayChangeListener *dcl;
1446
1447     if (!qemu_console_is_visible(con)) {
1448         return;
1449     }
1450     QLIST_FOREACH(dcl, &s->listeners, next) {
1451         if (con != (dcl->con ? dcl->con : active_console)) {
1452             continue;
1453         }
1454         if (dcl->ops->dpy_gfx_copy) {
1455             dcl->ops->dpy_gfx_copy(dcl, src_x, src_y, dst_x, dst_y, w, h);
1456         } else { /* TODO */
1457             dcl->ops->dpy_gfx_update(dcl, dst_x, dst_y, w, h);
1458         }
1459     }
1460 }
1461
1462 void dpy_text_cursor(QemuConsole *con, int x, int y)
1463 {
1464     DisplayState *s = con->ds;
1465     DisplayChangeListener *dcl;
1466
1467     if (!qemu_console_is_visible(con)) {
1468         return;
1469     }
1470     QLIST_FOREACH(dcl, &s->listeners, next) {
1471         if (con != (dcl->con ? dcl->con : active_console)) {
1472             continue;
1473         }
1474         if (dcl->ops->dpy_text_cursor) {
1475             dcl->ops->dpy_text_cursor(dcl, x, y);
1476         }
1477     }
1478 }
1479
1480 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1481 {
1482     DisplayState *s = con->ds;
1483     DisplayChangeListener *dcl;
1484
1485     if (!qemu_console_is_visible(con)) {
1486         return;
1487     }
1488     QLIST_FOREACH(dcl, &s->listeners, next) {
1489         if (con != (dcl->con ? dcl->con : active_console)) {
1490             continue;
1491         }
1492         if (dcl->ops->dpy_text_update) {
1493             dcl->ops->dpy_text_update(dcl, x, y, w, h);
1494         }
1495     }
1496 }
1497
1498 void dpy_text_resize(QemuConsole *con, int w, int h)
1499 {
1500     DisplayState *s = con->ds;
1501     struct DisplayChangeListener *dcl;
1502
1503     if (!qemu_console_is_visible(con)) {
1504         return;
1505     }
1506     QLIST_FOREACH(dcl, &s->listeners, next) {
1507         if (con != (dcl->con ? dcl->con : active_console)) {
1508             continue;
1509         }
1510         if (dcl->ops->dpy_text_resize) {
1511             dcl->ops->dpy_text_resize(dcl, w, h);
1512         }
1513     }
1514 }
1515
1516 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1517 {
1518     DisplayState *s = con->ds;
1519     DisplayChangeListener *dcl;
1520
1521     if (!qemu_console_is_visible(con)) {
1522         return;
1523     }
1524     QLIST_FOREACH(dcl, &s->listeners, next) {
1525         if (con != (dcl->con ? dcl->con : active_console)) {
1526             continue;
1527         }
1528         if (dcl->ops->dpy_mouse_set) {
1529             dcl->ops->dpy_mouse_set(dcl, x, y, on);
1530         }
1531     }
1532 }
1533
1534 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1535 {
1536     DisplayState *s = con->ds;
1537     DisplayChangeListener *dcl;
1538
1539     if (!qemu_console_is_visible(con)) {
1540         return;
1541     }
1542     QLIST_FOREACH(dcl, &s->listeners, next) {
1543         if (con != (dcl->con ? dcl->con : active_console)) {
1544             continue;
1545         }
1546         if (dcl->ops->dpy_cursor_define) {
1547             dcl->ops->dpy_cursor_define(dcl, cursor);
1548         }
1549     }
1550 }
1551
1552 bool dpy_cursor_define_supported(QemuConsole *con)
1553 {
1554     DisplayState *s = con->ds;
1555     DisplayChangeListener *dcl;
1556
1557     QLIST_FOREACH(dcl, &s->listeners, next) {
1558         if (dcl->ops->dpy_cursor_define) {
1559             return true;
1560         }
1561     }
1562     return false;
1563 }
1564
1565 /***********************************************************/
1566 /* register display */
1567
1568 /* console.c internal use only */
1569 static DisplayState *get_alloc_displaystate(void)
1570 {
1571     if (!display_state) {
1572         display_state = g_new0(DisplayState, 1);
1573     }
1574     return display_state;
1575 }
1576
1577 /*
1578  * Called by main(), after creating QemuConsoles
1579  * and before initializing ui (sdl/vnc/...).
1580  */
1581 DisplayState *init_displaystate(void)
1582 {
1583     int i;
1584
1585     if (!display_state) {
1586         display_state = g_new0(DisplayState, 1);
1587     }
1588
1589     for (i = 0; i < nb_consoles; i++) {
1590         if (consoles[i]->console_type != GRAPHIC_CONSOLE &&
1591             consoles[i]->ds == NULL) {
1592             text_console_do_init(consoles[i]->chr, display_state);
1593         }
1594     }
1595
1596     return display_state;
1597 }
1598
1599 QemuConsole *graphic_console_init(DeviceState *dev,
1600                                   const GraphicHwOps *hw_ops,
1601                                   void *opaque)
1602 {
1603     Error *local_err = NULL;
1604     int width = 640;
1605     int height = 480;
1606     QemuConsole *s;
1607     DisplayState *ds;
1608
1609     ds = get_alloc_displaystate();
1610     trace_console_gfx_new();
1611     s = new_console(ds, GRAPHIC_CONSOLE);
1612     s->hw_ops = hw_ops;
1613     s->hw = opaque;
1614     if (dev) {
1615         object_property_set_link(OBJECT(s), OBJECT(dev),
1616                                  "device", &local_err);
1617     }
1618
1619     s->surface = qemu_create_displaysurface(width, height);
1620     return s;
1621 }
1622
1623 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1624 {
1625     if (index >= MAX_CONSOLES) {
1626         return NULL;
1627     }
1628     return consoles[index];
1629 }
1630
1631 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev)
1632 {
1633     Error *local_err = NULL;
1634     Object *obj;
1635     int i;
1636
1637     for (i = 0; i < nb_consoles; i++) {
1638         if (!consoles[i]) {
1639             continue;
1640         }
1641         obj = object_property_get_link(OBJECT(consoles[i]),
1642                                        "device", &local_err);
1643         if (DEVICE(obj) == dev) {
1644             return consoles[i];
1645         }
1646     }
1647     return NULL;
1648 }
1649
1650 bool qemu_console_is_visible(QemuConsole *con)
1651 {
1652     return (con == active_console) || (con->dcls > 0);
1653 }
1654
1655 bool qemu_console_is_graphic(QemuConsole *con)
1656 {
1657     if (con == NULL) {
1658         con = active_console;
1659     }
1660     return con && (con->console_type == GRAPHIC_CONSOLE);
1661 }
1662
1663 bool qemu_console_is_fixedsize(QemuConsole *con)
1664 {
1665     if (con == NULL) {
1666         con = active_console;
1667     }
1668     return con && (con->console_type != TEXT_CONSOLE);
1669 }
1670
1671 static void text_console_set_echo(CharDriverState *chr, bool echo)
1672 {
1673     QemuConsole *s = chr->opaque;
1674
1675     s->echo = echo;
1676 }
1677
1678 static void text_console_update_cursor(void *opaque)
1679 {
1680     QemuConsole *s = opaque;
1681
1682     s->cursor_visible_phase = !s->cursor_visible_phase;
1683     graphic_hw_invalidate(s);
1684     qemu_mod_timer(s->cursor_timer,
1685                    qemu_get_clock_ms(rt_clock) + CONSOLE_CURSOR_PERIOD / 2);
1686 }
1687
1688 static const GraphicHwOps text_console_ops = {
1689     .invalidate  = text_console_invalidate,
1690     .text_update = text_console_update,
1691 };
1692
1693 static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
1694 {
1695     QemuConsole *s;
1696     int g_width = 80 * FONT_WIDTH;
1697     int g_height = 24 * FONT_HEIGHT;
1698
1699     s = chr->opaque;
1700
1701     chr->chr_write = console_puts;
1702
1703     s->out_fifo.buf = s->out_fifo_buf;
1704     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
1705     s->kbd_timer = qemu_new_timer_ms(rt_clock, kbd_send_chars, s);
1706     s->ds = ds;
1707
1708     s->y_displayed = 0;
1709     s->y_base = 0;
1710     s->total_height = DEFAULT_BACKSCROLL;
1711     s->x = 0;
1712     s->y = 0;
1713     if (!s->surface) {
1714         if (active_console && active_console->surface) {
1715             g_width = surface_width(active_console->surface);
1716             g_height = surface_height(active_console->surface);
1717         }
1718         s->surface = qemu_create_displaysurface(g_width, g_height);
1719     }
1720
1721     s->cursor_timer =
1722         qemu_new_timer_ms(rt_clock, text_console_update_cursor, s);
1723
1724     s->hw_ops = &text_console_ops;
1725     s->hw = s;
1726
1727     /* Set text attribute defaults */
1728     s->t_attrib_default.bold = 0;
1729     s->t_attrib_default.uline = 0;
1730     s->t_attrib_default.blink = 0;
1731     s->t_attrib_default.invers = 0;
1732     s->t_attrib_default.unvisible = 0;
1733     s->t_attrib_default.fgcol = COLOR_WHITE;
1734     s->t_attrib_default.bgcol = COLOR_BLACK;
1735     /* set current text attributes to default */
1736     s->t_attrib = s->t_attrib_default;
1737     text_console_resize(s);
1738
1739     if (chr->label) {
1740         char msg[128];
1741         int len;
1742
1743         s->t_attrib.bgcol = COLOR_BLUE;
1744         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
1745         console_puts(chr, (uint8_t*)msg, len);
1746         s->t_attrib = s->t_attrib_default;
1747     }
1748
1749     qemu_chr_be_generic_open(chr);
1750     if (chr->init)
1751         chr->init(chr);
1752 }
1753
1754 static CharDriverState *text_console_init(ChardevVC *vc)
1755 {
1756     CharDriverState *chr;
1757     QemuConsole *s;
1758     unsigned width = 0;
1759     unsigned height = 0;
1760
1761     chr = g_malloc0(sizeof(CharDriverState));
1762
1763     if (vc->has_width) {
1764         width = vc->width;
1765     } else if (vc->has_cols) {
1766         width = vc->cols * FONT_WIDTH;
1767     }
1768
1769     if (vc->has_height) {
1770         height = vc->height;
1771     } else if (vc->has_rows) {
1772         height = vc->rows * FONT_HEIGHT;
1773     }
1774
1775     trace_console_txt_new(width, height);
1776     if (width == 0 || height == 0) {
1777         s = new_console(NULL, TEXT_CONSOLE);
1778     } else {
1779         s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE);
1780         s->surface = qemu_create_displaysurface(width, height);
1781     }
1782
1783     if (!s) {
1784         g_free(chr);
1785         return NULL;
1786     }
1787
1788     s->chr = chr;
1789     chr->opaque = s;
1790     chr->chr_set_echo = text_console_set_echo;
1791
1792     if (display_state) {
1793         text_console_do_init(chr, display_state);
1794     }
1795     return chr;
1796 }
1797
1798 static VcHandler *vc_handler = text_console_init;
1799
1800 CharDriverState *vc_init(ChardevVC *vc)
1801 {
1802     return vc_handler(vc);
1803 }
1804
1805 void register_vc_handler(VcHandler *handler)
1806 {
1807     vc_handler = handler;
1808 }
1809
1810 void qemu_console_resize(QemuConsole *s, int width, int height)
1811 {
1812     DisplaySurface *surface;
1813
1814     assert(s->console_type == GRAPHIC_CONSOLE);
1815     surface = qemu_create_displaysurface(width, height);
1816     dpy_gfx_replace_surface(s, surface);
1817 }
1818
1819 void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
1820                        int dst_x, int dst_y, int w, int h)
1821 {
1822     assert(con->console_type == GRAPHIC_CONSOLE);
1823     dpy_gfx_copy(con, src_x, src_y, dst_x, dst_y, w, h);
1824 }
1825
1826 DisplaySurface *qemu_console_surface(QemuConsole *console)
1827 {
1828     return console->surface;
1829 }
1830
1831 DisplayState *qemu_console_displaystate(QemuConsole *console)
1832 {
1833     return console->ds;
1834 }
1835
1836 PixelFormat qemu_different_endianness_pixelformat(int bpp)
1837 {
1838     PixelFormat pf;
1839
1840     memset(&pf, 0x00, sizeof(PixelFormat));
1841
1842     pf.bits_per_pixel = bpp;
1843     pf.bytes_per_pixel = DIV_ROUND_UP(bpp, 8);
1844     pf.depth = bpp == 32 ? 24 : bpp;
1845
1846     switch (bpp) {
1847         case 24:
1848             pf.rmask = 0x000000FF;
1849             pf.gmask = 0x0000FF00;
1850             pf.bmask = 0x00FF0000;
1851             pf.rmax = 255;
1852             pf.gmax = 255;
1853             pf.bmax = 255;
1854             pf.rshift = 0;
1855             pf.gshift = 8;
1856             pf.bshift = 16;
1857             pf.rbits = 8;
1858             pf.gbits = 8;
1859             pf.bbits = 8;
1860             break;
1861         case 32:
1862             pf.rmask = 0x0000FF00;
1863             pf.gmask = 0x00FF0000;
1864             pf.bmask = 0xFF000000;
1865             pf.amask = 0x00000000;
1866             pf.amax = 255;
1867             pf.rmax = 255;
1868             pf.gmax = 255;
1869             pf.bmax = 255;
1870             pf.ashift = 0;
1871             pf.rshift = 8;
1872             pf.gshift = 16;
1873             pf.bshift = 24;
1874             pf.rbits = 8;
1875             pf.gbits = 8;
1876             pf.bbits = 8;
1877             pf.abits = 8;
1878             break;
1879         default:
1880             break;
1881     }
1882     return pf;
1883 }
1884
1885 PixelFormat qemu_default_pixelformat(int bpp)
1886 {
1887     PixelFormat pf;
1888
1889     memset(&pf, 0x00, sizeof(PixelFormat));
1890
1891     pf.bits_per_pixel = bpp;
1892     pf.bytes_per_pixel = DIV_ROUND_UP(bpp, 8);
1893     pf.depth = bpp == 32 ? 24 : bpp;
1894
1895     switch (bpp) {
1896         case 15:
1897             pf.bits_per_pixel = 16;
1898             pf.rmask = 0x00007c00;
1899             pf.gmask = 0x000003E0;
1900             pf.bmask = 0x0000001F;
1901             pf.rmax = 31;
1902             pf.gmax = 31;
1903             pf.bmax = 31;
1904             pf.rshift = 10;
1905             pf.gshift = 5;
1906             pf.bshift = 0;
1907             pf.rbits = 5;
1908             pf.gbits = 5;
1909             pf.bbits = 5;
1910             break;
1911         case 16:
1912             pf.rmask = 0x0000F800;
1913             pf.gmask = 0x000007E0;
1914             pf.bmask = 0x0000001F;
1915             pf.rmax = 31;
1916             pf.gmax = 63;
1917             pf.bmax = 31;
1918             pf.rshift = 11;
1919             pf.gshift = 5;
1920             pf.bshift = 0;
1921             pf.rbits = 5;
1922             pf.gbits = 6;
1923             pf.bbits = 5;
1924             break;
1925         case 24:
1926             pf.rmask = 0x00FF0000;
1927             pf.gmask = 0x0000FF00;
1928             pf.bmask = 0x000000FF;
1929             pf.rmax = 255;
1930             pf.gmax = 255;
1931             pf.bmax = 255;
1932             pf.rshift = 16;
1933             pf.gshift = 8;
1934             pf.bshift = 0;
1935             pf.rbits = 8;
1936             pf.gbits = 8;
1937             pf.bbits = 8;
1938             break;
1939         case 32:
1940             pf.rmask = 0x00FF0000;
1941             pf.gmask = 0x0000FF00;
1942             pf.bmask = 0x000000FF;
1943             pf.rmax = 255;
1944             pf.gmax = 255;
1945             pf.bmax = 255;
1946             pf.rshift = 16;
1947             pf.gshift = 8;
1948             pf.bshift = 0;
1949             pf.rbits = 8;
1950             pf.gbits = 8;
1951             pf.bbits = 8;
1952             break;
1953         default:
1954             break;
1955     }
1956     return pf;
1957 }
1958
1959 static void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend,
1960                               Error **errp)
1961 {
1962     int val;
1963
1964     backend->vc = g_new0(ChardevVC, 1);
1965
1966     val = qemu_opt_get_number(opts, "width", 0);
1967     if (val != 0) {
1968         backend->vc->has_width = true;
1969         backend->vc->width = val;
1970     }
1971
1972     val = qemu_opt_get_number(opts, "height", 0);
1973     if (val != 0) {
1974         backend->vc->has_height = true;
1975         backend->vc->height = val;
1976     }
1977
1978     val = qemu_opt_get_number(opts, "cols", 0);
1979     if (val != 0) {
1980         backend->vc->has_cols = true;
1981         backend->vc->cols = val;
1982     }
1983
1984     val = qemu_opt_get_number(opts, "rows", 0);
1985     if (val != 0) {
1986         backend->vc->has_rows = true;
1987         backend->vc->rows = val;
1988     }
1989 }
1990
1991 static const TypeInfo qemu_console_info = {
1992     .name = TYPE_QEMU_CONSOLE,
1993     .parent = TYPE_OBJECT,
1994     .instance_size = sizeof(QemuConsole),
1995     .class_size = sizeof(QemuConsoleClass),
1996 };
1997
1998
1999 static void register_types(void)
2000 {
2001     type_register_static(&qemu_console_info);
2002     register_char_driver_qapi("vc", CHARDEV_BACKEND_KIND_VC,
2003                               qemu_chr_parse_vc);
2004 }
2005
2006 type_init(register_types);