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 #include "trace.h"
  31 #include "exec/memory.h"
  32
  33 #define DEFAULT_BACKSCROLL 512
  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     DisplayChangeListener *gl;
 125
 126     /* Graphic console state.  */
 127     Object *device;
 128     uint32_t head;
 129     QemuUIInfo ui_info;
 130     QEMUTimer *ui_timer;
 131     const GraphicHwOps *hw_ops;
 132     void *hw;
 133
 134     /* Text console state */
 135     int width;
 136     int height;
 137     int total_height;
 138     int backscroll_height;
 139     int x, y;
 140     int x_saved, y_saved;
 141     int y_displayed;
 142     int y_base;
 143     TextAttributes t_attrib_default; /* default text attributes */
 144     TextAttributes t_attrib; /* currently active text attributes */
 145     TextCell *cells;
 146     int text_x[2], text_y[2], cursor_invalidate;
 147     int echo;
 148
 149     int update_x0;
 150     int update_y0;
 151     int update_x1;
 152     int update_y1;
 153
 154     enum TTYState state;
 155     int esc_params[MAX_ESC_PARAMS];
 156     int nb_esc_params;
 157
 158     CharDriverState *chr;
 159     /* fifo for key pressed */
 160     QEMUFIFO out_fifo;
 161     uint8_t out_fifo_buf[16];
 162     QEMUTimer *kbd_timer;
 163 };
 164
 165 struct DisplayState {
 166     QEMUTimer *gui_timer;
 167     uint64_t last_update;
 168     uint64_t update_interval;
 169     bool refreshing;
 170     bool have_gfx;
 171     bool have_text;
 172
 173     QLIST_HEAD(, DisplayChangeListener) listeners;
 174 };
 175
 176 static DisplayState *display_state;
 177 static QemuConsole *active_console;
 178 static QemuConsole **consoles;
 179 static int nb_consoles = 0;
 180 static bool cursor_visible_phase;
 181 static QEMUTimer *cursor_timer;
 182
 183 static void text_console_do_init(CharDriverState *chr, DisplayState *ds);
 184 static void dpy_refresh(DisplayState *s);
 185 static DisplayState *get_alloc_displaystate(void);
 186 static void text_console_update_cursor_timer(void);
 187 static void text_console_update_cursor(void *opaque);
 188
 189 static void gui_update(void *opaque)
 190 {
 191     uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
 192     uint64_t dcl_interval;
 193     DisplayState *ds = opaque;
 194     DisplayChangeListener *dcl;
 195     int i;
 196
 197     ds->refreshing = true;
 198     dpy_refresh(ds);
 199     ds->refreshing = false;
 200
 201     QLIST_FOREACH(dcl, &ds->listeners, next) {
 202         dcl_interval = dcl->update_interval ?
 203             dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
 204         if (interval > dcl_interval) {
 205             interval = dcl_interval;
 206         }
 207     }
 208     if (ds->update_interval != interval) {
 209         ds->update_interval = interval;
 210         for (i = 0; i < nb_consoles; i++) {
 211             if (consoles[i]->hw_ops->update_interval) {
 212                 consoles[i]->hw_ops->update_interval(consoles[i]->hw, interval);
 213             }
 214         }
 215         trace_console_refresh(interval);
 216     }
 217     ds->last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
 218     timer_mod(ds->gui_timer, ds->last_update + interval);
 219 }
 220
 221 static void gui_setup_refresh(DisplayState *ds)
 222 {
 223     DisplayChangeListener *dcl;
 224     bool need_timer = false;
 225     bool have_gfx = false;
 226     bool have_text = false;
 227
 228     QLIST_FOREACH(dcl, &ds->listeners, next) {
 229         if (dcl->ops->dpy_refresh != NULL) {
 230             need_timer = true;
 231         }
 232         if (dcl->ops->dpy_gfx_update != NULL) {
 233             have_gfx = true;
 234         }
 235         if (dcl->ops->dpy_text_update != NULL) {
 236             have_text = true;
 237         }
 238     }
 239
 240     if (need_timer && ds->gui_timer == NULL) {
 241         ds->gui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, gui_update, ds);
 242         timer_mod(ds->gui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
 243     }
 244     if (!need_timer && ds->gui_timer != NULL) {
 245         timer_del(ds->gui_timer);
 246         timer_free(ds->gui_timer);
 247         ds->gui_timer = NULL;
 248     }
 249
 250     ds->have_gfx = have_gfx;
 251     ds->have_text = have_text;
 252 }
 253
 254 void graphic_hw_update(QemuConsole *con)
 255 {
 256     if (!con) {
 257         con = active_console;
 258     }
 259     if (con && con->hw_ops->gfx_update) {
 260         con->hw_ops->gfx_update(con->hw);
 261     }
 262 }
 263
 264 void graphic_hw_invalidate(QemuConsole *con)
 265 {
 266     if (!con) {
 267         con = active_console;
 268     }
 269     if (con && con->hw_ops->invalidate) {
 270         con->hw_ops->invalidate(con->hw);
 271     }
 272 }
 273
 274 static void ppm_save(const char *filename, DisplaySurface *ds,
 275                      Error **errp)
 276 {
 277     int width = pixman_image_get_width(ds->image);
 278     int height = pixman_image_get_height(ds->image);
 279     int fd;
 280     FILE *f;
 281     int y;
 282     int ret;
 283     pixman_image_t *linebuf;
 284
 285     trace_ppm_save(filename, ds);
 286     fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
 287     if (fd == -1) {
 288         error_setg(errp, "failed to open file '%s': %s", filename,
 289                    strerror(errno));
 290         return;
 291     }
 292     f = fdopen(fd, "wb");
 293     ret = fprintf(f, "P6\n%d %d\n%d\n", width, height, 255);
 294     if (ret < 0) {
 295         linebuf = NULL;
 296         goto write_err;
 297     }
 298     linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
 299     for (y = 0; y < height; y++) {
 300         qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
 301         clearerr(f);
 302         ret = fwrite(pixman_image_get_data(linebuf), 1,
 303                      pixman_image_get_stride(linebuf), f);
 304         (void)ret;
 305         if (ferror(f)) {
 306             goto write_err;
 307         }
 308     }
 309
 310 out:
 311     qemu_pixman_image_unref(linebuf);
 312     fclose(f);
 313     return;
 314
 315 write_err:
 316     error_setg(errp, "failed to write to file '%s': %s", filename,
 317                strerror(errno));
 318     unlink(filename);
 319     goto out;
 320 }
 321
 322 void qmp_screendump(const char *filename, Error **errp)
 323 {
 324     QemuConsole *con = qemu_console_lookup_by_index(0);
 325     DisplaySurface *surface;
 326
 327     if (con == NULL) {
 328         error_setg(errp, "There is no QemuConsole I can screendump from.");
 329         return;
 330     }
 331
 332     graphic_hw_update(con);
 333     surface = qemu_console_surface(con);
 334     ppm_save(filename, surface, errp);
 335 }
 336
 337 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
 338 {
 339     if (!con) {
 340         con = active_console;
 341     }
 342     if (con && con->hw_ops->text_update) {
 343         con->hw_ops->text_update(con->hw, chardata);
 344     }
 345 }
 346
 347 static void vga_fill_rect(QemuConsole *con,
 348                           int posx, int posy, int width, int height,
 349                           pixman_color_t color)
 350 {
 351     DisplaySurface *surface = qemu_console_surface(con);
 352     pixman_rectangle16_t rect = {
 353         .x = posx, .y = posy, .width = width, .height = height
 354     };
 355
 356     pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
 357                                  &color, 1, &rect);
 358 }
 359
 360 /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
 361 static void vga_bitblt(QemuConsole *con,
 362                        int xs, int ys, int xd, int yd, int w, int h)
 363 {
 364     DisplaySurface *surface = qemu_console_surface(con);
 365
 366     pixman_image_composite(PIXMAN_OP_SRC,
 367                            surface->image, NULL, surface->image,
 368                            xs, ys, 0, 0, xd, yd, w, h);
 369 }
 370
 371 /***********************************************************/
 372 /* basic char display */
 373
 374 #define FONT_HEIGHT 16
 375 #define FONT_WIDTH 8
 376
 377 #include "vgafont.h"
 378
 379 #ifndef CONFIG_CURSES
 380 enum color_names {
 381     COLOR_BLACK   = 0,
 382     COLOR_RED     = 1,
 383     COLOR_GREEN   = 2,
 384     COLOR_YELLOW  = 3,
 385     COLOR_BLUE    = 4,
 386     COLOR_MAGENTA = 5,
 387     COLOR_CYAN    = 6,
 388     COLOR_WHITE   = 7
 389 };
 390 #endif
 391
 392 #define QEMU_RGB(r, g, b)                                               \
 393     { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
 394
 395 static const pixman_color_t color_table_rgb[2][8] = {
 396     {   /* dark */
 397         QEMU_RGB(0x00, 0x00, 0x00),  /* black */
 398         QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
 399         QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
 400         QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
 401         QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
 402         QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
 403         QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
 404         QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
 405     },
 406     {   /* bright */
 407         QEMU_RGB(0x00, 0x00, 0x00),  /* black */
 408         QEMU_RGB(0xff, 0x00, 0x00),  /* red */
 409         QEMU_RGB(0x00, 0xff, 0x00),  /* green */
 410         QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
 411         QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
 412         QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
 413         QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
 414         QEMU_RGB(0xff, 0xff, 0xff),  /* white */
 415     }
 416 };
 417
 418 static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
 419                           TextAttributes *t_attrib)
 420 {
 421     static pixman_image_t *glyphs[256];
 422     DisplaySurface *surface = qemu_console_surface(s);
 423     pixman_color_t fgcol, bgcol;
 424
 425     if (t_attrib->invers) {
 426         bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
 427         fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
 428     } else {
 429         fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
 430         bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
 431     }
 432
 433     if (!glyphs[ch]) {
 434         glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
 435     }
 436     qemu_pixman_glyph_render(glyphs[ch], surface->image,
 437                              &fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
 438 }
 439
 440 static void text_console_resize(QemuConsole *s)
 441 {
 442     TextCell *cells, *c, *c1;
 443     int w1, x, y, last_width;
 444
 445     last_width = s->width;
 446     s->width = surface_width(s->surface) / FONT_WIDTH;
 447     s->height = surface_height(s->surface) / FONT_HEIGHT;
 448
 449     w1 = last_width;
 450     if (s->width < w1)
 451         w1 = s->width;
 452
 453     cells = g_new(TextCell, s->width * s->total_height);
 454     for(y = 0; y < s->total_height; y++) {
 455         c = &cells[y * s->width];
 456         if (w1 > 0) {
 457             c1 = &s->cells[y * last_width];
 458             for(x = 0; x < w1; x++) {
 459                 *c++ = *c1++;
 460             }
 461         }
 462         for(x = w1; x < s->width; x++) {
 463             c->ch = ' ';
 464             c->t_attrib = s->t_attrib_default;
 465             c++;
 466         }
 467     }
 468     g_free(s->cells);
 469     s->cells = cells;
 470 }
 471
 472 static inline void text_update_xy(QemuConsole *s, int x, int y)
 473 {
 474     s->text_x[0] = MIN(s->text_x[0], x);
 475     s->text_x[1] = MAX(s->text_x[1], x);
 476     s->text_y[0] = MIN(s->text_y[0], y);
 477     s->text_y[1] = MAX(s->text_y[1], y);
 478 }
 479
 480 static void invalidate_xy(QemuConsole *s, int x, int y)
 481 {
 482     if (!qemu_console_is_visible(s)) {
 483         return;
 484     }
 485     if (s->update_x0 > x * FONT_WIDTH)
 486         s->update_x0 = x * FONT_WIDTH;
 487     if (s->update_y0 > y * FONT_HEIGHT)
 488         s->update_y0 = y * FONT_HEIGHT;
 489     if (s->update_x1 < (x + 1) * FONT_WIDTH)
 490         s->update_x1 = (x + 1) * FONT_WIDTH;
 491     if (s->update_y1 < (y + 1) * FONT_HEIGHT)
 492         s->update_y1 = (y + 1) * FONT_HEIGHT;
 493 }
 494
 495 static void update_xy(QemuConsole *s, int x, int y)
 496 {
 497     TextCell *c;
 498     int y1, y2;
 499
 500     if (s->ds->have_text) {
 501         text_update_xy(s, x, y);
 502     }
 503
 504     y1 = (s->y_base + y) % s->total_height;
 505     y2 = y1 - s->y_displayed;
 506     if (y2 < 0) {
 507         y2 += s->total_height;
 508     }
 509     if (y2 < s->height) {
 510         c = &s->cells[y1 * s->width + x];
 511         vga_putcharxy(s, x, y2, c->ch,
 512                       &(c->t_attrib));
 513         invalidate_xy(s, x, y2);
 514     }
 515 }
 516
 517 static void console_show_cursor(QemuConsole *s, int show)
 518 {
 519     TextCell *c;
 520     int y, y1;
 521     int x = s->x;
 522
 523     if (s->ds->have_text) {
 524         s->cursor_invalidate = 1;
 525     }
 526
 527     if (x >= s->width) {
 528         x = s->width - 1;
 529     }
 530     y1 = (s->y_base + s->y) % s->total_height;
 531     y = y1 - s->y_displayed;
 532     if (y < 0) {
 533         y += s->total_height;
 534     }
 535     if (y < s->height) {
 536         c = &s->cells[y1 * s->width + x];
 537         if (show && 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 static void console_refresh(QemuConsole *s)
 549 {
 550     DisplaySurface *surface = qemu_console_surface(s);
 551     TextCell *c;
 552     int x, y, y1;
 553
 554     if (s->ds->have_text) {
 555         s->text_x[0] = 0;
 556         s->text_y[0] = 0;
 557         s->text_x[1] = s->width - 1;
 558         s->text_y[1] = s->height - 1;
 559         s->cursor_invalidate = 1;
 560     }
 561
 562     vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
 563                   color_table_rgb[0][COLOR_BLACK]);
 564     y1 = s->y_displayed;
 565     for (y = 0; y < s->height; y++) {
 566         c = s->cells + y1 * s->width;
 567         for (x = 0; x < s->width; x++) {
 568             vga_putcharxy(s, x, y, c->ch,
 569                           &(c->t_attrib));
 570             c++;
 571         }
 572         if (++y1 == s->total_height) {
 573             y1 = 0;
 574         }
 575     }
 576     console_show_cursor(s, 1);
 577     dpy_gfx_update(s, 0, 0,
 578                    surface_width(surface), surface_height(surface));
 579 }
 580
 581 static void console_scroll(QemuConsole *s, int ydelta)
 582 {
 583     int i, y1;
 584
 585     if (ydelta > 0) {
 586         for(i = 0; i < ydelta; i++) {
 587             if (s->y_displayed == s->y_base)
 588                 break;
 589             if (++s->y_displayed == s->total_height)
 590                 s->y_displayed = 0;
 591         }
 592     } else {
 593         ydelta = -ydelta;
 594         i = s->backscroll_height;
 595         if (i > s->total_height - s->height)
 596             i = s->total_height - s->height;
 597         y1 = s->y_base - i;
 598         if (y1 < 0)
 599             y1 += s->total_height;
 600         for(i = 0; i < ydelta; i++) {
 601             if (s->y_displayed == y1)
 602                 break;
 603             if (--s->y_displayed < 0)
 604                 s->y_displayed = s->total_height - 1;
 605         }
 606     }
 607     console_refresh(s);
 608 }
 609
 610 static void console_put_lf(QemuConsole *s)
 611 {
 612     TextCell *c;
 613     int x, y1;
 614
 615     s->y++;
 616     if (s->y >= s->height) {
 617         s->y = s->height - 1;
 618
 619         if (s->y_displayed == s->y_base) {
 620             if (++s->y_displayed == s->total_height)
 621                 s->y_displayed = 0;
 622         }
 623         if (++s->y_base == s->total_height)
 624             s->y_base = 0;
 625         if (s->backscroll_height < s->total_height)
 626             s->backscroll_height++;
 627         y1 = (s->y_base + s->height - 1) % s->total_height;
 628         c = &s->cells[y1 * s->width];
 629         for(x = 0; x < s->width; x++) {
 630             c->ch = ' ';
 631             c->t_attrib = s->t_attrib_default;
 632             c++;
 633         }
 634         if (s->y_displayed == s->y_base) {
 635             if (s->ds->have_text) {
 636                 s->text_x[0] = 0;
 637                 s->text_y[0] = 0;
 638                 s->text_x[1] = s->width - 1;
 639                 s->text_y[1] = s->height - 1;
 640             }
 641
 642             vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
 643                        s->width * FONT_WIDTH,
 644                        (s->height - 1) * FONT_HEIGHT);
 645             vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
 646                           s->width * FONT_WIDTH, FONT_HEIGHT,
 647                           color_table_rgb[0][s->t_attrib_default.bgcol]);
 648             s->update_x0 = 0;
 649             s->update_y0 = 0;
 650             s->update_x1 = s->width * FONT_WIDTH;
 651             s->update_y1 = s->height * FONT_HEIGHT;
 652         }
 653     }
 654 }
 655
 656 /* Set console attributes depending on the current escape codes.
 657  * NOTE: I know this code is not very efficient (checking every color for it
 658  * self) but it is more readable and better maintainable.
 659  */
 660 static void console_handle_escape(QemuConsole *s)
 661 {
 662     int i;
 663
 664     for (i=0; i<s->nb_esc_params; i++) {
 665         switch (s->esc_params[i]) {
 666             case 0: /* reset all console attributes to default */
 667                 s->t_attrib = s->t_attrib_default;
 668                 break;
 669             case 1:
 670                 s->t_attrib.bold = 1;
 671                 break;
 672             case 4:
 673                 s->t_attrib.uline = 1;
 674                 break;
 675             case 5:
 676                 s->t_attrib.blink = 1;
 677                 break;
 678             case 7:
 679                 s->t_attrib.invers = 1;
 680                 break;
 681             case 8:
 682                 s->t_attrib.unvisible = 1;
 683                 break;
 684             case 22:
 685                 s->t_attrib.bold = 0;
 686                 break;
 687             case 24:
 688                 s->t_attrib.uline = 0;
 689                 break;
 690             case 25:
 691                 s->t_attrib.blink = 0;
 692                 break;
 693             case 27:
 694                 s->t_attrib.invers = 0;
 695                 break;
 696             case 28:
 697                 s->t_attrib.unvisible = 0;
 698                 break;
 699             /* set foreground color */
 700             case 30:
 701                 s->t_attrib.fgcol=COLOR_BLACK;
 702                 break;
 703             case 31:
 704                 s->t_attrib.fgcol=COLOR_RED;
 705                 break;
 706             case 32:
 707                 s->t_attrib.fgcol=COLOR_GREEN;
 708                 break;
 709             case 33:
 710                 s->t_attrib.fgcol=COLOR_YELLOW;
 711                 break;
 712             case 34:
 713                 s->t_attrib.fgcol=COLOR_BLUE;
 714                 break;
 715             case 35:
 716                 s->t_attrib.fgcol=COLOR_MAGENTA;
 717                 break;
 718             case 36:
 719                 s->t_attrib.fgcol=COLOR_CYAN;
 720                 break;
 721             case 37:
 722                 s->t_attrib.fgcol=COLOR_WHITE;
 723                 break;
 724             /* set background color */
 725             case 40:
 726                 s->t_attrib.bgcol=COLOR_BLACK;
 727                 break;
 728             case 41:
 729                 s->t_attrib.bgcol=COLOR_RED;
 730                 break;
 731             case 42:
 732                 s->t_attrib.bgcol=COLOR_GREEN;
 733                 break;
 734             case 43:
 735                 s->t_attrib.bgcol=COLOR_YELLOW;
 736                 break;
 737             case 44:
 738                 s->t_attrib.bgcol=COLOR_BLUE;
 739                 break;
 740             case 45:
 741                 s->t_attrib.bgcol=COLOR_MAGENTA;
 742                 break;
 743             case 46:
 744                 s->t_attrib.bgcol=COLOR_CYAN;
 745                 break;
 746             case 47:
 747                 s->t_attrib.bgcol=COLOR_WHITE;
 748                 break;
 749         }
 750     }
 751 }
 752
 753 static void console_clear_xy(QemuConsole *s, int x, int y)
 754 {
 755     int y1 = (s->y_base + y) % s->total_height;
 756     TextCell *c = &s->cells[y1 * s->width + x];
 757     c->ch = ' ';
 758     c->t_attrib = s->t_attrib_default;
 759     update_xy(s, x, y);
 760 }
 761
 762 /* set cursor, checking bounds */
 763 static void set_cursor(QemuConsole *s, int x, int y)
 764 {
 765     if (x < 0) {
 766         x = 0;
 767     }
 768     if (y < 0) {
 769         y = 0;
 770     }
 771     if (y >= s->height) {
 772         y = s->height - 1;
 773     }
 774     if (x >= s->width) {
 775         x = s->width - 1;
 776     }
 777
 778     s->x = x;
 779     s->y = y;
 780 }
 781
 782 static void console_putchar(QemuConsole *s, int ch)
 783 {
 784     TextCell *c;
 785     int y1, i;
 786     int x, y;
 787
 788     switch(s->state) {
 789     case TTY_STATE_NORM:
 790         switch(ch) {
 791         case '\r':  /* carriage return */
 792             s->x = 0;
 793             break;
 794         case '\n':  /* newline */
 795             console_put_lf(s);
 796             break;
 797         case '\b':  /* backspace */
 798             if (s->x > 0)
 799                 s->x--;
 800             break;
 801         case '\t':  /* tabspace */
 802             if (s->x + (8 - (s->x % 8)) > s->width) {
 803                 s->x = 0;
 804                 console_put_lf(s);
 805             } else {
 806                 s->x = s->x + (8 - (s->x % 8));
 807             }
 808             break;
 809         case '\a':  /* alert aka. bell */
 810             /* TODO: has to be implemented */
 811             break;
 812         case 14:
 813             /* SI (shift in), character set 0 (ignored) */
 814             break;
 815         case 15:
 816             /* SO (shift out), character set 1 (ignored) */
 817             break;
 818         case 27:    /* esc (introducing an escape sequence) */
 819             s->state = TTY_STATE_ESC;
 820             break;
 821         default:
 822             if (s->x >= s->width) {
 823                 /* line wrap */
 824                 s->x = 0;
 825                 console_put_lf(s);
 826             }
 827             y1 = (s->y_base + s->y) % s->total_height;
 828             c = &s->cells[y1 * s->width + s->x];
 829             c->ch = ch;
 830             c->t_attrib = s->t_attrib;
 831             update_xy(s, s->x, s->y);
 832             s->x++;
 833             break;
 834         }
 835         break;
 836     case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
 837         if (ch == '[') {
 838             for(i=0;i<MAX_ESC_PARAMS;i++)
 839                 s->esc_params[i] = 0;
 840             s->nb_esc_params = 0;
 841             s->state = TTY_STATE_CSI;
 842         } else {
 843             s->state = TTY_STATE_NORM;
 844         }
 845         break;
 846     case TTY_STATE_CSI: /* handle escape sequence parameters */
 847         if (ch >= '0' && ch <= '9') {
 848             if (s->nb_esc_params < MAX_ESC_PARAMS) {
 849                 int *param = &s->esc_params[s->nb_esc_params];
 850                 int digit = (ch - '0');
 851
 852                 *param = (*param <= (INT_MAX - digit) / 10) ?
 853                          *param * 10 + digit : INT_MAX;
 854             }
 855         } else {
 856             if (s->nb_esc_params < MAX_ESC_PARAMS)
 857                 s->nb_esc_params++;
 858             if (ch == ';')
 859                 break;
 860             trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
 861                                       ch, s->nb_esc_params);
 862             s->state = TTY_STATE_NORM;
 863             switch(ch) {
 864             case 'A':
 865                 /* move cursor up */
 866                 if (s->esc_params[0] == 0) {
 867                     s->esc_params[0] = 1;
 868                 }
 869                 set_cursor(s, s->x, s->y - s->esc_params[0]);
 870                 break;
 871             case 'B':
 872                 /* move cursor down */
 873                 if (s->esc_params[0] == 0) {
 874                     s->esc_params[0] = 1;
 875                 }
 876                 set_cursor(s, s->x, s->y + s->esc_params[0]);
 877                 break;
 878             case 'C':
 879                 /* move cursor right */
 880                 if (s->esc_params[0] == 0) {
 881                     s->esc_params[0] = 1;
 882                 }
 883                 set_cursor(s, s->x + s->esc_params[0], s->y);
 884                 break;
 885             case 'D':
 886                 /* move cursor left */
 887                 if (s->esc_params[0] == 0) {
 888                     s->esc_params[0] = 1;
 889                 }
 890                 set_cursor(s, s->x - s->esc_params[0], s->y);
 891                 break;
 892             case 'G':
 893                 /* move cursor to column */
 894                 set_cursor(s, s->esc_params[0] - 1, s->y);
 895                 break;
 896             case 'f':
 897             case 'H':
 898                 /* move cursor to row, column */
 899                 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
 900                 break;
 901             case 'J':
 902                 switch (s->esc_params[0]) {
 903                 case 0:
 904                     /* clear to end of screen */
 905                     for (y = s->y; y < s->height; y++) {
 906                         for (x = 0; x < s->width; x++) {
 907                             if (y == s->y && x < s->x) {
 908                                 continue;
 909                             }
 910                             console_clear_xy(s, x, y);
 911                         }
 912                     }
 913                     break;
 914                 case 1:
 915                     /* clear from beginning of screen */
 916                     for (y = 0; y <= s->y; y++) {
 917                         for (x = 0; x < s->width; x++) {
 918                             if (y == s->y && x > s->x) {
 919                                 break;
 920                             }
 921                             console_clear_xy(s, x, y);
 922                         }
 923                     }
 924                     break;
 925                 case 2:
 926                     /* clear entire screen */
 927                     for (y = 0; y <= s->height; y++) {
 928                         for (x = 0; x < s->width; x++) {
 929                             console_clear_xy(s, x, y);
 930                         }
 931                     }
 932                     break;
 933                 }
 934                 break;
 935             case 'K':
 936                 switch (s->esc_params[0]) {
 937                 case 0:
 938                     /* clear to eol */
 939                     for(x = s->x; x < s->width; x++) {
 940                         console_clear_xy(s, x, s->y);
 941                     }
 942                     break;
 943                 case 1:
 944                     /* clear from beginning of line */
 945                     for (x = 0; x <= s->x; x++) {
 946                         console_clear_xy(s, x, s->y);
 947                     }
 948                     break;
 949                 case 2:
 950                     /* clear entire line */
 951                     for(x = 0; x < s->width; x++) {
 952                         console_clear_xy(s, x, s->y);
 953                     }
 954                     break;
 955                 }
 956                 break;
 957             case 'm':
 958                 console_handle_escape(s);
 959                 break;
 960             case 'n':
 961                 /* report cursor position */
 962                 /* TODO: send ESC[row;colR */
 963                 break;
 964             case 's':
 965                 /* save cursor position */
 966                 s->x_saved = s->x;
 967                 s->y_saved = s->y;
 968                 break;
 969             case 'u':
 970                 /* restore cursor position */
 971                 s->x = s->x_saved;
 972                 s->y = s->y_saved;
 973                 break;
 974             default:
 975                 trace_console_putchar_unhandled(ch);
 976                 break;
 977             }
 978             break;
 979         }
 980     }
 981 }
 982
 983 void console_select(unsigned int index)
 984 {
 985     DisplayChangeListener *dcl;
 986     QemuConsole *s;
 987
 988     trace_console_select(index);
 989     s = qemu_console_lookup_by_index(index);
 990     if (s) {
 991         DisplayState *ds = s->ds;
 992
 993         active_console = s;
 994         if (ds->have_gfx) {
 995             QLIST_FOREACH(dcl, &ds->listeners, next) {
 996                 if (dcl->con != NULL) {
 997                     continue;
 998                 }
 999                 if (dcl->ops->dpy_gfx_switch) {
1000                     dcl->ops->dpy_gfx_switch(dcl, s->surface);
1001                 }
1002             }
1003             dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1004                            surface_height(s->surface));
1005         }
1006         if (ds->have_text) {
1007             dpy_text_resize(s, s->width, s->height);
1008         }
1009         text_console_update_cursor(NULL);
1010     }
1011 }
1012
1013 static int console_puts(CharDriverState *chr, const uint8_t *buf, int len)
1014 {
1015     QemuConsole *s = chr->opaque;
1016     int i;
1017
1018     s->update_x0 = s->width * FONT_WIDTH;
1019     s->update_y0 = s->height * FONT_HEIGHT;
1020     s->update_x1 = 0;
1021     s->update_y1 = 0;
1022     console_show_cursor(s, 0);
1023     for(i = 0; i < len; i++) {
1024         console_putchar(s, buf[i]);
1025     }
1026     console_show_cursor(s, 1);
1027     if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1028         dpy_gfx_update(s, s->update_x0, s->update_y0,
1029                        s->update_x1 - s->update_x0,
1030                        s->update_y1 - s->update_y0);
1031     }
1032     return len;
1033 }
1034
1035 static void kbd_send_chars(void *opaque)
1036 {
1037     QemuConsole *s = opaque;
1038     int len;
1039     uint8_t buf[16];
1040
1041     len = qemu_chr_be_can_write(s->chr);
1042     if (len > s->out_fifo.count)
1043         len = s->out_fifo.count;
1044     if (len > 0) {
1045         if (len > sizeof(buf))
1046             len = sizeof(buf);
1047         qemu_fifo_read(&s->out_fifo, buf, len);
1048         qemu_chr_be_write(s->chr, buf, len);
1049     }
1050     /* characters are pending: we send them a bit later (XXX:
1051        horrible, should change char device API) */
1052     if (s->out_fifo.count > 0) {
1053         timer_mod(s->kbd_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1);
1054     }
1055 }
1056
1057 /* called when an ascii key is pressed */
1058 void kbd_put_keysym_console(QemuConsole *s, int keysym)
1059 {
1060     uint8_t buf[16], *q;
1061     int c;
1062
1063     if (!s || (s->console_type == GRAPHIC_CONSOLE))
1064         return;
1065
1066     switch(keysym) {
1067     case QEMU_KEY_CTRL_UP:
1068         console_scroll(s, -1);
1069         break;
1070     case QEMU_KEY_CTRL_DOWN:
1071         console_scroll(s, 1);
1072         break;
1073     case QEMU_KEY_CTRL_PAGEUP:
1074         console_scroll(s, -10);
1075         break;
1076     case QEMU_KEY_CTRL_PAGEDOWN:
1077         console_scroll(s, 10);
1078         break;
1079     default:
1080         /* convert the QEMU keysym to VT100 key string */
1081         q = buf;
1082         if (keysym >= 0xe100 && keysym <= 0xe11f) {
1083             *q++ = '\033';
1084             *q++ = '[';
1085             c = keysym - 0xe100;
1086             if (c >= 10)
1087                 *q++ = '0' + (c / 10);
1088             *q++ = '0' + (c % 10);
1089             *q++ = '~';
1090         } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1091             *q++ = '\033';
1092             *q++ = '[';
1093             *q++ = keysym & 0xff;
1094         } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1095             console_puts(s->chr, (const uint8_t *) "\r", 1);
1096             *q++ = '\n';
1097         } else {
1098             *q++ = keysym;
1099         }
1100         if (s->echo) {
1101             console_puts(s->chr, buf, q - buf);
1102         }
1103         if (s->chr->chr_read) {
1104             qemu_fifo_write(&s->out_fifo, buf, q - buf);
1105             kbd_send_chars(s);
1106         }
1107         break;
1108     }
1109 }
1110
1111 static const int qcode_to_keysym[Q_KEY_CODE_MAX] = {
1112     [Q_KEY_CODE_UP]     = QEMU_KEY_UP,
1113     [Q_KEY_CODE_DOWN]   = QEMU_KEY_DOWN,
1114     [Q_KEY_CODE_RIGHT]  = QEMU_KEY_RIGHT,
1115     [Q_KEY_CODE_LEFT]   = QEMU_KEY_LEFT,
1116     [Q_KEY_CODE_HOME]   = QEMU_KEY_HOME,
1117     [Q_KEY_CODE_END]    = QEMU_KEY_END,
1118     [Q_KEY_CODE_PGUP]   = QEMU_KEY_PAGEUP,
1119     [Q_KEY_CODE_PGDN]   = QEMU_KEY_PAGEDOWN,
1120     [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1121 };
1122
1123 bool kbd_put_qcode_console(QemuConsole *s, int qcode)
1124 {
1125     int keysym;
1126
1127     keysym = qcode_to_keysym[qcode];
1128     if (keysym == 0) {
1129         return false;
1130     }
1131     kbd_put_keysym_console(s, keysym);
1132     return true;
1133 }
1134
1135 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1136 {
1137     int i;
1138
1139     for (i = 0; i < len && str[i]; i++) {
1140         kbd_put_keysym_console(s, str[i]);
1141     }
1142 }
1143
1144 void kbd_put_keysym(int keysym)
1145 {
1146     kbd_put_keysym_console(active_console, keysym);
1147 }
1148
1149 static void text_console_invalidate(void *opaque)
1150 {
1151     QemuConsole *s = (QemuConsole *) opaque;
1152
1153     if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1154         text_console_resize(s);
1155     }
1156     console_refresh(s);
1157 }
1158
1159 static void text_console_update(void *opaque, console_ch_t *chardata)
1160 {
1161     QemuConsole *s = (QemuConsole *) opaque;
1162     int i, j, src;
1163
1164     if (s->text_x[0] <= s->text_x[1]) {
1165         src = (s->y_base + s->text_y[0]) * s->width;
1166         chardata += s->text_y[0] * s->width;
1167         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1168             for (j = 0; j < s->width; j ++, src ++)
1169                 console_write_ch(chardata ++, s->cells[src].ch |
1170                                 (s->cells[src].t_attrib.fgcol << 12) |
1171                                 (s->cells[src].t_attrib.bgcol << 8) |
1172                                 (s->cells[src].t_attrib.bold << 21));
1173         dpy_text_update(s, s->text_x[0], s->text_y[0],
1174                         s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1175         s->text_x[0] = s->width;
1176         s->text_y[0] = s->height;
1177         s->text_x[1] = 0;
1178         s->text_y[1] = 0;
1179     }
1180     if (s->cursor_invalidate) {
1181         dpy_text_cursor(s, s->x, s->y);
1182         s->cursor_invalidate = 0;
1183     }
1184 }
1185
1186 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1187                                 uint32_t head)
1188 {
1189     Object *obj;
1190     QemuConsole *s;
1191     int i;
1192
1193     obj = object_new(TYPE_QEMU_CONSOLE);
1194     s = QEMU_CONSOLE(obj);
1195     s->head = head;
1196     object_property_add_link(obj, "device", TYPE_DEVICE,
1197                              (Object **)&s->device,
1198                              object_property_allow_set_link,
1199                              OBJ_PROP_LINK_UNREF_ON_RELEASE,
1200                              &error_abort);
1201     object_property_add_uint32_ptr(obj, "head",
1202                                    &s->head, &error_abort);
1203
1204     if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1205         (console_type == GRAPHIC_CONSOLE))) {
1206         active_console = s;
1207     }
1208     s->ds = ds;
1209     s->console_type = console_type;
1210
1211     consoles = g_realloc(consoles, sizeof(*consoles) * (nb_consoles+1));
1212     if (console_type != GRAPHIC_CONSOLE) {
1213         s->index = nb_consoles;
1214         consoles[nb_consoles++] = s;
1215     } else {
1216         /* HACK: Put graphical consoles before text consoles.  */
1217         for (i = nb_consoles; i > 0; i--) {
1218             if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
1219                 break;
1220             consoles[i] = consoles[i - 1];
1221             consoles[i]->index = i;
1222         }
1223         s->index = i;
1224         consoles[i] = s;
1225         nb_consoles++;
1226     }
1227     return s;
1228 }
1229
1230 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1231 {
1232     qemu_pixman_image_unref(surface->image);
1233     surface->image = NULL;
1234
1235     surface->format = PIXMAN_x8r8g8b8;
1236     surface->image = pixman_image_create_bits(surface->format,
1237                                               width, height,
1238                                               NULL, width * 4);
1239     assert(surface->image != NULL);
1240
1241     surface->flags = QEMU_ALLOCATED_FLAG;
1242 }
1243
1244 DisplaySurface *qemu_create_displaysurface(int width, int height)
1245 {
1246     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1247
1248     trace_displaysurface_create(surface, width, height);
1249     qemu_alloc_display(surface, width, height);
1250     return surface;
1251 }
1252
1253 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1254                                                 pixman_format_code_t format,
1255                                                 int linesize, uint8_t *data)
1256 {
1257     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1258
1259     trace_displaysurface_create_from(surface, width, height, format);
1260     surface->format = format;
1261     surface->image = pixman_image_create_bits(surface->format,
1262                                               width, height,
1263                                               (void *)data, linesize);
1264     assert(surface->image != NULL);
1265
1266     return surface;
1267 }
1268
1269 static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image,
1270                                                void *unused)
1271 {
1272     void *data = pixman_image_get_data(image);
1273     uint32_t size = pixman_image_get_stride(image) *
1274         pixman_image_get_height(image);
1275     cpu_physical_memory_unmap(data, size, 0, 0);
1276 }
1277
1278 DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
1279                                                     pixman_format_code_t format,
1280                                                     int linesize, uint64_t addr)
1281 {
1282     DisplaySurface *surface;
1283     hwaddr size;
1284     void *data;
1285
1286     if (linesize == 0) {
1287         linesize = width * PIXMAN_FORMAT_BPP(format) / 8;
1288     }
1289
1290     size = (hwaddr)linesize * height;
1291     data = cpu_physical_memory_map(addr, &size, 0);
1292     if (size != (hwaddr)linesize * height) {
1293         cpu_physical_memory_unmap(data, size, 0, 0);
1294         return NULL;
1295     }
1296
1297     surface = qemu_create_displaysurface_from
1298         (width, height, format, linesize, data);
1299     pixman_image_set_destroy_function
1300         (surface->image, qemu_unmap_displaysurface_guestmem, NULL);
1301
1302     return surface;
1303 }
1304
1305 static DisplaySurface *qemu_create_message_surface(int w, int h,
1306                                                    const char *msg)
1307 {
1308     DisplaySurface *surface = qemu_create_displaysurface(w, h);
1309     pixman_color_t bg = color_table_rgb[0][COLOR_BLACK];
1310     pixman_color_t fg = color_table_rgb[0][COLOR_WHITE];
1311     pixman_image_t *glyph;
1312     int len, x, y, i;
1313
1314     len = strlen(msg);
1315     x = (w / FONT_WIDTH  - len) / 2;
1316     y = (h / FONT_HEIGHT - 1)   / 2;
1317     for (i = 0; i < len; i++) {
1318         glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1319         qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1320                                  x+i, y, FONT_WIDTH, FONT_HEIGHT);
1321         qemu_pixman_image_unref(glyph);
1322     }
1323     return surface;
1324 }
1325
1326 void qemu_free_displaysurface(DisplaySurface *surface)
1327 {
1328     if (surface == NULL) {
1329         return;
1330     }
1331     trace_displaysurface_free(surface);
1332     qemu_pixman_image_unref(surface->image);
1333     g_free(surface);
1334 }
1335
1336 bool console_has_gl(QemuConsole *con)
1337 {
1338     return con->gl != NULL;
1339 }
1340
1341 void register_displaychangelistener(DisplayChangeListener *dcl)
1342 {
1343     static const char nodev[] =
1344         "This VM has no graphic display device.";
1345     static DisplaySurface *dummy;
1346     QemuConsole *con;
1347
1348     if (dcl->ops->dpy_gl_ctx_create) {
1349         /* display has opengl support */
1350         assert(dcl->con);
1351         if (dcl->con->gl) {
1352             fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1353                     dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1354             exit(1);
1355         }
1356         dcl->con->gl = dcl;
1357     }
1358
1359     trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1360     dcl->ds = get_alloc_displaystate();
1361     QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1362     gui_setup_refresh(dcl->ds);
1363     if (dcl->con) {
1364         dcl->con->dcls++;
1365         con = dcl->con;
1366     } else {
1367         con = active_console;
1368     }
1369     if (dcl->ops->dpy_gfx_switch) {
1370         if (con) {
1371             dcl->ops->dpy_gfx_switch(dcl, con->surface);
1372         } else {
1373             if (!dummy) {
1374                 dummy = qemu_create_message_surface(640, 480, nodev);
1375             }
1376             dcl->ops->dpy_gfx_switch(dcl, dummy);
1377         }
1378     }
1379     text_console_update_cursor(NULL);
1380 }
1381
1382 void update_displaychangelistener(DisplayChangeListener *dcl,
1383                                   uint64_t interval)
1384 {
1385     DisplayState *ds = dcl->ds;
1386
1387     dcl->update_interval = interval;
1388     if (!ds->refreshing && ds->update_interval > interval) {
1389         timer_mod(ds->gui_timer, ds->last_update + interval);
1390     }
1391 }
1392
1393 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1394 {
1395     DisplayState *ds = dcl->ds;
1396     trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1397     if (dcl->con) {
1398         dcl->con->dcls--;
1399     }
1400     QLIST_REMOVE(dcl, next);
1401     gui_setup_refresh(ds);
1402 }
1403
1404 static void dpy_set_ui_info_timer(void *opaque)
1405 {
1406     QemuConsole *con = opaque;
1407
1408     con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1409 }
1410
1411 bool dpy_ui_info_supported(QemuConsole *con)
1412 {
1413     return con->hw_ops->ui_info != NULL;
1414 }
1415
1416 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1417 {
1418     assert(con != NULL);
1419     con->ui_info = *info;
1420     if (!dpy_ui_info_supported(con)) {
1421         return -1;
1422     }
1423
1424     /*
1425      * Typically we get a flood of these as the user resizes the window.
1426      * Wait until the dust has settled (one second without updates), then
1427      * go notify the guest.
1428      */
1429     timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1430     return 0;
1431 }
1432
1433 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1434 {
1435     DisplayState *s = con->ds;
1436     DisplayChangeListener *dcl;
1437     int width = w;
1438     int height = h;
1439
1440     if (con->surface) {
1441         width = surface_width(con->surface);
1442         height = surface_height(con->surface);
1443     }
1444     x = MAX(x, 0);
1445     y = MAX(y, 0);
1446     x = MIN(x, width);
1447     y = MIN(y, height);
1448     w = MIN(w, width - x);
1449     h = MIN(h, height - y);
1450
1451     if (!qemu_console_is_visible(con)) {
1452         return;
1453     }
1454     QLIST_FOREACH(dcl, &s->listeners, next) {
1455         if (con != (dcl->con ? dcl->con : active_console)) {
1456             continue;
1457         }
1458         if (dcl->ops->dpy_gfx_update) {
1459             dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1460         }
1461     }
1462 }
1463
1464 void dpy_gfx_replace_surface(QemuConsole *con,
1465                              DisplaySurface *surface)
1466 {
1467     DisplayState *s = con->ds;
1468     DisplaySurface *old_surface = con->surface;
1469     DisplayChangeListener *dcl;
1470
1471     con->surface = surface;
1472     QLIST_FOREACH(dcl, &s->listeners, next) {
1473         if (con != (dcl->con ? dcl->con : active_console)) {
1474             continue;
1475         }
1476         if (dcl->ops->dpy_gfx_switch) {
1477             dcl->ops->dpy_gfx_switch(dcl, surface);
1478         }
1479     }
1480     qemu_free_displaysurface(old_surface);
1481 }
1482
1483 bool dpy_gfx_check_format(QemuConsole *con,
1484                           pixman_format_code_t format)
1485 {
1486     DisplayChangeListener *dcl;
1487     DisplayState *s = con->ds;
1488
1489     QLIST_FOREACH(dcl, &s->listeners, next) {
1490         if (dcl->con && dcl->con != con) {
1491             /* dcl bound to another console -> skip */
1492             continue;
1493         }
1494         if (dcl->ops->dpy_gfx_check_format) {
1495             if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1496                 return false;
1497             }
1498         } else {
1499             /* default is to whitelist native 32 bpp only */
1500             if (format != qemu_default_pixman_format(32, true)) {
1501                 return false;
1502             }
1503         }
1504     }
1505     return true;
1506 }
1507
1508 static void dpy_refresh(DisplayState *s)
1509 {
1510     DisplayChangeListener *dcl;
1511
1512     QLIST_FOREACH(dcl, &s->listeners, next) {
1513         if (dcl->ops->dpy_refresh) {
1514             dcl->ops->dpy_refresh(dcl);
1515         }
1516     }
1517 }
1518
1519 void dpy_gfx_copy(QemuConsole *con, int src_x, int src_y,
1520                   int dst_x, int dst_y, int w, int h)
1521 {
1522     DisplayState *s = con->ds;
1523     DisplayChangeListener *dcl;
1524
1525     if (!qemu_console_is_visible(con)) {
1526         return;
1527     }
1528     QLIST_FOREACH(dcl, &s->listeners, next) {
1529         if (con != (dcl->con ? dcl->con : active_console)) {
1530             continue;
1531         }
1532         if (dcl->ops->dpy_gfx_copy) {
1533             dcl->ops->dpy_gfx_copy(dcl, src_x, src_y, dst_x, dst_y, w, h);
1534         } else { /* TODO */
1535             dcl->ops->dpy_gfx_update(dcl, dst_x, dst_y, w, h);
1536         }
1537     }
1538 }
1539
1540 void dpy_text_cursor(QemuConsole *con, int x, int y)
1541 {
1542     DisplayState *s = con->ds;
1543     DisplayChangeListener *dcl;
1544
1545     if (!qemu_console_is_visible(con)) {
1546         return;
1547     }
1548     QLIST_FOREACH(dcl, &s->listeners, next) {
1549         if (con != (dcl->con ? dcl->con : active_console)) {
1550             continue;
1551         }
1552         if (dcl->ops->dpy_text_cursor) {
1553             dcl->ops->dpy_text_cursor(dcl, x, y);
1554         }
1555     }
1556 }
1557
1558 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1559 {
1560     DisplayState *s = con->ds;
1561     DisplayChangeListener *dcl;
1562
1563     if (!qemu_console_is_visible(con)) {
1564         return;
1565     }
1566     QLIST_FOREACH(dcl, &s->listeners, next) {
1567         if (con != (dcl->con ? dcl->con : active_console)) {
1568             continue;
1569         }
1570         if (dcl->ops->dpy_text_update) {
1571             dcl->ops->dpy_text_update(dcl, x, y, w, h);
1572         }
1573     }
1574 }
1575
1576 void dpy_text_resize(QemuConsole *con, int w, int h)
1577 {
1578     DisplayState *s = con->ds;
1579     DisplayChangeListener *dcl;
1580
1581     if (!qemu_console_is_visible(con)) {
1582         return;
1583     }
1584     QLIST_FOREACH(dcl, &s->listeners, next) {
1585         if (con != (dcl->con ? dcl->con : active_console)) {
1586             continue;
1587         }
1588         if (dcl->ops->dpy_text_resize) {
1589             dcl->ops->dpy_text_resize(dcl, w, h);
1590         }
1591     }
1592 }
1593
1594 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1595 {
1596     DisplayState *s = con->ds;
1597     DisplayChangeListener *dcl;
1598
1599     if (!qemu_console_is_visible(con)) {
1600         return;
1601     }
1602     QLIST_FOREACH(dcl, &s->listeners, next) {
1603         if (con != (dcl->con ? dcl->con : active_console)) {
1604             continue;
1605         }
1606         if (dcl->ops->dpy_mouse_set) {
1607             dcl->ops->dpy_mouse_set(dcl, x, y, on);
1608         }
1609     }
1610 }
1611
1612 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1613 {
1614     DisplayState *s = con->ds;
1615     DisplayChangeListener *dcl;
1616
1617     if (!qemu_console_is_visible(con)) {
1618         return;
1619     }
1620     QLIST_FOREACH(dcl, &s->listeners, next) {
1621         if (con != (dcl->con ? dcl->con : active_console)) {
1622             continue;
1623         }
1624         if (dcl->ops->dpy_cursor_define) {
1625             dcl->ops->dpy_cursor_define(dcl, cursor);
1626         }
1627     }
1628 }
1629
1630 bool dpy_cursor_define_supported(QemuConsole *con)
1631 {
1632     DisplayState *s = con->ds;
1633     DisplayChangeListener *dcl;
1634
1635     QLIST_FOREACH(dcl, &s->listeners, next) {
1636         if (dcl->ops->dpy_cursor_define) {
1637             return true;
1638         }
1639     }
1640     return false;
1641 }
1642
1643 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1644                                 struct QEMUGLParams *qparams)
1645 {
1646     assert(con->gl);
1647     return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1648 }
1649
1650 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1651 {
1652     assert(con->gl);
1653     con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1654 }
1655
1656 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1657 {
1658     assert(con->gl);
1659     return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1660 }
1661
1662 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1663 {
1664     assert(con->gl);
1665     return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1666 }
1667
1668 void dpy_gl_scanout(QemuConsole *con,
1669                     uint32_t backing_id, bool backing_y_0_top,
1670                     uint32_t x, uint32_t y, uint32_t width, uint32_t height)
1671 {
1672     assert(con->gl);
1673     con->gl->ops->dpy_gl_scanout(con->gl, backing_id,
1674                                  backing_y_0_top,
1675                                  x, y, width, height);
1676 }
1677
1678 void dpy_gl_update(QemuConsole *con,
1679                    uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1680 {
1681     assert(con->gl);
1682     con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1683 }
1684
1685 /***********************************************************/
1686 /* register display */
1687
1688 /* console.c internal use only */
1689 static DisplayState *get_alloc_displaystate(void)
1690 {
1691     if (!display_state) {
1692         display_state = g_new0(DisplayState, 1);
1693         cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1694                                     text_console_update_cursor, NULL);
1695     }
1696     return display_state;
1697 }
1698
1699 /*
1700  * Called by main(), after creating QemuConsoles
1701  * and before initializing ui (sdl/vnc/...).
1702  */
1703 DisplayState *init_displaystate(void)
1704 {
1705     gchar *name;
1706     int i;
1707
1708     get_alloc_displaystate();
1709     for (i = 0; i < nb_consoles; i++) {
1710         if (consoles[i]->console_type != GRAPHIC_CONSOLE &&
1711             consoles[i]->ds == NULL) {
1712             text_console_do_init(consoles[i]->chr, display_state);
1713         }
1714
1715         /* Hook up into the qom tree here (not in new_console()), once
1716          * all QemuConsoles are created and the order / numbering
1717          * doesn't change any more */
1718         name = g_strdup_printf("console[%d]", i);
1719         object_property_add_child(container_get(object_get_root(), "/backend"),
1720                                   name, OBJECT(consoles[i]), &error_abort);
1721         g_free(name);
1722     }
1723
1724     return display_state;
1725 }
1726
1727 void graphic_console_set_hwops(QemuConsole *con,
1728                                const GraphicHwOps *hw_ops,
1729                                void *opaque)
1730 {
1731     con->hw_ops = hw_ops;
1732     con->hw = opaque;
1733 }
1734
1735 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1736                                   const GraphicHwOps *hw_ops,
1737                                   void *opaque)
1738 {
1739     static const char noinit[] =
1740         "Guest has not initialized the display (yet).";
1741     int width = 640;
1742     int height = 480;
1743     QemuConsole *s;
1744     DisplayState *ds;
1745
1746     ds = get_alloc_displaystate();
1747     trace_console_gfx_new();
1748     s = new_console(ds, GRAPHIC_CONSOLE, head);
1749     s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, dpy_set_ui_info_timer, s);
1750     graphic_console_set_hwops(s, hw_ops, opaque);
1751     if (dev) {
1752         object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1753                                  &error_abort);
1754     }
1755
1756     s->surface = qemu_create_message_surface(width, height, noinit);
1757     return s;
1758 }
1759
1760 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1761 {
1762     if (index >= nb_consoles) {
1763         return NULL;
1764     }
1765     return consoles[index];
1766 }
1767
1768 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1769 {
1770     Object *obj;
1771     uint32_t h;
1772     int i;
1773
1774     for (i = 0; i < nb_consoles; i++) {
1775         if (!consoles[i]) {
1776             continue;
1777         }
1778         obj = object_property_get_link(OBJECT(consoles[i]),
1779                                        "device", &error_abort);
1780         if (DEVICE(obj) != dev) {
1781             continue;
1782         }
1783         h = object_property_get_int(OBJECT(consoles[i]),
1784                                     "head", &error_abort);
1785         if (h != head) {
1786             continue;
1787         }
1788         return consoles[i];
1789     }
1790     return NULL;
1791 }
1792
1793 bool qemu_console_is_visible(QemuConsole *con)
1794 {
1795     return (con == active_console) || (con->dcls > 0);
1796 }
1797
1798 bool qemu_console_is_graphic(QemuConsole *con)
1799 {
1800     if (con == NULL) {
1801         con = active_console;
1802     }
1803     return con && (con->console_type == GRAPHIC_CONSOLE);
1804 }
1805
1806 bool qemu_console_is_fixedsize(QemuConsole *con)
1807 {
1808     if (con == NULL) {
1809         con = active_console;
1810     }
1811     return con && (con->console_type != TEXT_CONSOLE);
1812 }
1813
1814 char *qemu_console_get_label(QemuConsole *con)
1815 {
1816     if (con->console_type == GRAPHIC_CONSOLE) {
1817         if (con->device) {
1818             return g_strdup(object_get_typename(con->device));
1819         }
1820         return g_strdup("VGA");
1821     } else {
1822         if (con->chr && con->chr->label) {
1823             return g_strdup(con->chr->label);
1824         }
1825         return g_strdup_printf("vc%d", con->index);
1826     }
1827 }
1828
1829 int qemu_console_get_index(QemuConsole *con)
1830 {
1831     if (con == NULL) {
1832         con = active_console;
1833     }
1834     return con ? con->index : -1;
1835 }
1836
1837 uint32_t qemu_console_get_head(QemuConsole *con)
1838 {
1839     if (con == NULL) {
1840         con = active_console;
1841     }
1842     return con ? con->head : -1;
1843 }
1844
1845 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
1846 {
1847     assert(con != NULL);
1848     return &con->ui_info;
1849 }
1850
1851 int qemu_console_get_width(QemuConsole *con, int fallback)
1852 {
1853     if (con == NULL) {
1854         con = active_console;
1855     }
1856     return con ? surface_width(con->surface) : fallback;
1857 }
1858
1859 int qemu_console_get_height(QemuConsole *con, int fallback)
1860 {
1861     if (con == NULL) {
1862         con = active_console;
1863     }
1864     return con ? surface_height(con->surface) : fallback;
1865 }
1866
1867 static void text_console_set_echo(CharDriverState *chr, bool echo)
1868 {
1869     QemuConsole *s = chr->opaque;
1870
1871     s->echo = echo;
1872 }
1873
1874 static void text_console_update_cursor_timer(void)
1875 {
1876     timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
1877               + CONSOLE_CURSOR_PERIOD / 2);
1878 }
1879
1880 static void text_console_update_cursor(void *opaque)
1881 {
1882     QemuConsole *s;
1883     int i, count = 0;
1884
1885     cursor_visible_phase = !cursor_visible_phase;
1886
1887     for (i = 0; i < nb_consoles; i++) {
1888         s = consoles[i];
1889         if (qemu_console_is_graphic(s) ||
1890             !qemu_console_is_visible(s)) {
1891             continue;
1892         }
1893         count++;
1894         graphic_hw_invalidate(s);
1895     }
1896
1897     if (count) {
1898         text_console_update_cursor_timer();
1899     }
1900 }
1901
1902 static const GraphicHwOps text_console_ops = {
1903     .invalidate  = text_console_invalidate,
1904     .text_update = text_console_update,
1905 };
1906
1907 static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
1908 {
1909     QemuConsole *s;
1910     int g_width = 80 * FONT_WIDTH;
1911     int g_height = 24 * FONT_HEIGHT;
1912
1913     s = chr->opaque;
1914
1915     chr->chr_write = console_puts;
1916
1917     s->out_fifo.buf = s->out_fifo_buf;
1918     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
1919     s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
1920     s->ds = ds;
1921
1922     s->y_displayed = 0;
1923     s->y_base = 0;
1924     s->total_height = DEFAULT_BACKSCROLL;
1925     s->x = 0;
1926     s->y = 0;
1927     if (!s->surface) {
1928         if (active_console && active_console->surface) {
1929             g_width = surface_width(active_console->surface);
1930             g_height = surface_height(active_console->surface);
1931         }
1932         s->surface = qemu_create_displaysurface(g_width, g_height);
1933     }
1934
1935     s->hw_ops = &text_console_ops;
1936     s->hw = s;
1937
1938     /* Set text attribute defaults */
1939     s->t_attrib_default.bold = 0;
1940     s->t_attrib_default.uline = 0;
1941     s->t_attrib_default.blink = 0;
1942     s->t_attrib_default.invers = 0;
1943     s->t_attrib_default.unvisible = 0;
1944     s->t_attrib_default.fgcol = COLOR_WHITE;
1945     s->t_attrib_default.bgcol = COLOR_BLACK;
1946     /* set current text attributes to default */
1947     s->t_attrib = s->t_attrib_default;
1948     text_console_resize(s);
1949
1950     if (chr->label) {
1951         char msg[128];
1952         int len;
1953
1954         s->t_attrib.bgcol = COLOR_BLUE;
1955         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
1956         console_puts(chr, (uint8_t*)msg, len);
1957         s->t_attrib = s->t_attrib_default;
1958     }
1959
1960     qemu_chr_be_generic_open(chr);
1961     if (chr->init)
1962         chr->init(chr);
1963 }
1964
1965 static CharDriverState *text_console_init(ChardevVC *vc, Error **errp)
1966 {
1967     CharDriverState *chr;
1968     QemuConsole *s;
1969     unsigned width = 0;
1970     unsigned height = 0;
1971
1972     chr = qemu_chr_alloc();
1973
1974     if (vc->has_width) {
1975         width = vc->width;
1976     } else if (vc->has_cols) {
1977         width = vc->cols * FONT_WIDTH;
1978     }
1979
1980     if (vc->has_height) {
1981         height = vc->height;
1982     } else if (vc->has_rows) {
1983         height = vc->rows * FONT_HEIGHT;
1984     }
1985
1986     trace_console_txt_new(width, height);
1987     if (width == 0 || height == 0) {
1988         s = new_console(NULL, TEXT_CONSOLE, 0);
1989     } else {
1990         s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
1991         s->surface = qemu_create_displaysurface(width, height);
1992     }
1993
1994     if (!s) {
1995         g_free(chr);
1996         error_setg(errp, "cannot create text console");
1997         return NULL;
1998     }
1999
2000     s->chr = chr;
2001     chr->opaque = s;
2002     chr->chr_set_echo = text_console_set_echo;
2003     /* console/chardev init sometimes completes elsewhere in a 2nd
2004      * stage, so defer OPENED events until they are fully initialized
2005      */
2006     chr->explicit_be_open = true;
2007
2008     if (display_state) {
2009         text_console_do_init(chr, display_state);
2010     }
2011     return chr;
2012 }
2013
2014 static VcHandler *vc_handler = text_console_init;
2015
2016 static CharDriverState *vc_init(const char *id, ChardevBackend *backend,
2017                                 ChardevReturn *ret, Error **errp)
2018 {
2019     return vc_handler(backend->u.vc, errp);
2020 }
2021
2022 void register_vc_handler(VcHandler *handler)
2023 {
2024     vc_handler = handler;
2025 }
2026
2027 void qemu_console_resize(QemuConsole *s, int width, int height)
2028 {
2029     DisplaySurface *surface;
2030
2031     assert(s->console_type == GRAPHIC_CONSOLE);
2032     surface = qemu_create_displaysurface(width, height);
2033     dpy_gfx_replace_surface(s, surface);
2034 }
2035
2036 void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
2037                        int dst_x, int dst_y, int w, int h)
2038 {
2039     assert(con->console_type == GRAPHIC_CONSOLE);
2040     dpy_gfx_copy(con, src_x, src_y, dst_x, dst_y, w, h);
2041 }
2042
2043 DisplaySurface *qemu_console_surface(QemuConsole *console)
2044 {
2045     return console->surface;
2046 }
2047
2048 PixelFormat qemu_default_pixelformat(int bpp)
2049 {
2050     pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2051     PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2052     return pf;
2053 }
2054
2055 static void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend,
2056                               Error **errp)
2057 {
2058     int val;
2059
2060     backend->u.vc = g_new0(ChardevVC, 1);
2061
2062     val = qemu_opt_get_number(opts, "width", 0);
2063     if (val != 0) {
2064         backend->u.vc->has_width = true;
2065         backend->u.vc->width = val;
2066     }
2067
2068     val = qemu_opt_get_number(opts, "height", 0);
2069     if (val != 0) {
2070         backend->u.vc->has_height = true;
2071         backend->u.vc->height = val;
2072     }
2073
2074     val = qemu_opt_get_number(opts, "cols", 0);
2075     if (val != 0) {
2076         backend->u.vc->has_cols = true;
2077         backend->u.vc->cols = val;
2078     }
2079
2080     val = qemu_opt_get_number(opts, "rows", 0);
2081     if (val != 0) {
2082         backend->u.vc->has_rows = true;
2083         backend->u.vc->rows = val;
2084     }
2085 }
2086
2087 static const TypeInfo qemu_console_info = {
2088     .name = TYPE_QEMU_CONSOLE,
2089     .parent = TYPE_OBJECT,
2090     .instance_size = sizeof(QemuConsole),
2091     .class_size = sizeof(QemuConsoleClass),
2092 };
2093
2094
2095 static void register_types(void)
2096 {
2097     type_register_static(&qemu_console_info);
2098     register_char_driver("vc", CHARDEV_BACKEND_KIND_VC, qemu_chr_parse_vc,
2099                          vc_init);
2100 }
2101
2102 type_init(register_types);