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