ui/console.c

   1 /*
   2  * QEMU graphical console
   3  *
   4  * Copyright (c) 2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "qemu/osdep.h"
  25 #include "qemu-common.h"
  26 #include "ui/console.h"
  27 #include "hw/qdev-core.h"
  28 #include "qemu/timer.h"
  29 #include "qmp-commands.h"
  30 #include "sysemu/char.h"
  31 #include "trace.h"
  32 #include "exec/memory.h"
  33
  34 #define DEFAULT_BACKSCROLL 512
  35 #define CONSOLE_CURSOR_PERIOD 500
  36
  37 typedef struct TextAttributes {
  38     uint8_t fgcol:4;
  39     uint8_t bgcol:4;
  40     uint8_t bold:1;
  41     uint8_t uline:1;
  42     uint8_t blink:1;
  43     uint8_t invers:1;
  44     uint8_t unvisible:1;
  45 } TextAttributes;
  46
  47 typedef struct TextCell {
  48     uint8_t ch;
  49     TextAttributes t_attrib;
  50 } TextCell;
  51
  52 #define MAX_ESC_PARAMS 3
  53
  54 enum TTYState {
  55     TTY_STATE_NORM,
  56     TTY_STATE_ESC,
  57     TTY_STATE_CSI,
  58 };
  59
  60 typedef struct QEMUFIFO {
  61     uint8_t *buf;
  62     int buf_size;
  63     int count, wptr, rptr;
  64 } QEMUFIFO;
  65
  66 static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
  67 {
  68     int l, len;
  69
  70     l = f->buf_size - f->count;
  71     if (len1 > l)
  72         len1 = l;
  73     len = len1;
  74     while (len > 0) {
  75         l = f->buf_size - f->wptr;
  76         if (l > len)
  77             l = len;
  78         memcpy(f->buf + f->wptr, buf, l);
  79         f->wptr += l;
  80         if (f->wptr >= f->buf_size)
  81             f->wptr = 0;
  82         buf += l;
  83         len -= l;
  84     }
  85     f->count += len1;
  86     return len1;
  87 }
  88
  89 static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
  90 {
  91     int l, len;
  92
  93     if (len1 > f->count)
  94         len1 = f->count;
  95     len = len1;
  96     while (len > 0) {
  97         l = f->buf_size - f->rptr;
  98         if (l > len)
  99             l = len;
 100         memcpy(buf, f->buf + f->rptr, l);
 101         f->rptr += l;
 102         if (f->rptr >= f->buf_size)
 103             f->rptr = 0;
 104         buf += l;
 105         len -= l;
 106     }
 107     f->count -= len1;
 108     return len1;
 109 }
 110
 111 typedef enum {
 112     GRAPHIC_CONSOLE,
 113     TEXT_CONSOLE,
 114     TEXT_CONSOLE_FIXED_SIZE
 115 } console_type_t;
 116
 117 struct QemuConsole {
 118     Object parent;
 119
 120     int index;
 121     console_type_t console_type;
 122     DisplayState *ds;
 123     DisplaySurface *surface;
 124     int dcls;
 125     DisplayChangeListener *gl;
 126     bool gl_block;
 127     int window_id;
 128
 129     /* Graphic console state.  */
 130     Object *device;
 131     uint32_t head;
 132     QemuUIInfo ui_info;
 133     QEMUTimer *ui_timer;
 134     const GraphicHwOps *hw_ops;
 135     void *hw;
 136
 137     /* Text console state */
 138     int width;
 139     int height;
 140     int total_height;
 141     int backscroll_height;
 142     int x, y;
 143     int x_saved, y_saved;
 144     int y_displayed;
 145     int y_base;
 146     TextAttributes t_attrib_default; /* default text attributes */
 147     TextAttributes t_attrib; /* currently active text attributes */
 148     TextCell *cells;
 149     int text_x[2], text_y[2], cursor_invalidate;
 150     int echo;
 151
 152     int update_x0;
 153     int update_y0;
 154     int update_x1;
 155     int update_y1;
 156
 157     enum TTYState state;
 158     int esc_params[MAX_ESC_PARAMS];
 159     int nb_esc_params;
 160
 161     Chardev *chr;
 162     /* fifo for key pressed */
 163     QEMUFIFO out_fifo;
 164     uint8_t out_fifo_buf[16];
 165     QEMUTimer *kbd_timer;
 166 };
 167
 168 struct DisplayState {
 169     QEMUTimer *gui_timer;
 170     uint64_t last_update;
 171     uint64_t update_interval;
 172     bool refreshing;
 173     bool have_gfx;
 174     bool have_text;
 175
 176     QLIST_HEAD(, DisplayChangeListener) listeners;
 177 };
 178
 179 static DisplayState *display_state;
 180 static QemuConsole *active_console;
 181 static QemuConsole **consoles;
 182 static int nb_consoles = 0;
 183 static bool cursor_visible_phase;
 184 static QEMUTimer *cursor_timer;
 185
 186 static void text_console_do_init(Chardev *chr, DisplayState *ds);
 187 static void dpy_refresh(DisplayState *s);
 188 static DisplayState *get_alloc_displaystate(void);
 189 static void text_console_update_cursor_timer(void);
 190 static void text_console_update_cursor(void *opaque);
 191
 192 static void gui_update(void *opaque)
 193 {
 194     uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
 195     uint64_t dcl_interval;
 196     DisplayState *ds = opaque;
 197     DisplayChangeListener *dcl;
 198     int i;
 199
 200     ds->refreshing = true;
 201     dpy_refresh(ds);
 202     ds->refreshing = false;
 203
 204     QLIST_FOREACH(dcl, &ds->listeners, next) {
 205         dcl_interval = dcl->update_interval ?
 206             dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
 207         if (interval > dcl_interval) {
 208             interval = dcl_interval;
 209         }
 210     }
 211     if (ds->update_interval != interval) {
 212         ds->update_interval = interval;
 213         for (i = 0; i < nb_consoles; i++) {
 214             if (consoles[i]->hw_ops->update_interval) {
 215                 consoles[i]->hw_ops->update_interval(consoles[i]->hw, interval);
 216             }
 217         }
 218         trace_console_refresh(interval);
 219     }
 220     ds->last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
 221     timer_mod(ds->gui_timer, ds->last_update + interval);
 222 }
 223
 224 static void gui_setup_refresh(DisplayState *ds)
 225 {
 226     DisplayChangeListener *dcl;
 227     bool need_timer = false;
 228     bool have_gfx = false;
 229     bool have_text = false;
 230
 231     QLIST_FOREACH(dcl, &ds->listeners, next) {
 232         if (dcl->ops->dpy_refresh != NULL) {
 233             need_timer = true;
 234         }
 235         if (dcl->ops->dpy_gfx_update != NULL) {
 236             have_gfx = true;
 237         }
 238         if (dcl->ops->dpy_text_update != NULL) {
 239             have_text = true;
 240         }
 241     }
 242
 243     if (need_timer && ds->gui_timer == NULL) {
 244         ds->gui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, gui_update, ds);
 245         timer_mod(ds->gui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
 246     }
 247     if (!need_timer && ds->gui_timer != NULL) {
 248         timer_del(ds->gui_timer);
 249         timer_free(ds->gui_timer);
 250         ds->gui_timer = NULL;
 251     }
 252
 253     ds->have_gfx = have_gfx;
 254     ds->have_text = have_text;
 255 }
 256
 257 void graphic_hw_update(QemuConsole *con)
 258 {
 259     if (!con) {
 260         con = active_console;
 261     }
 262     if (con && con->hw_ops->gfx_update) {
 263         con->hw_ops->gfx_update(con->hw);
 264     }
 265 }
 266
 267 void graphic_hw_gl_block(QemuConsole *con, bool block)
 268 {
 269     assert(con != NULL);
 270
 271     con->gl_block = block;
 272     if (con->hw_ops->gl_block) {
 273         con->hw_ops->gl_block(con->hw, block);
 274     }
 275 }
 276
 277 int qemu_console_get_window_id(QemuConsole *con)
 278 {
 279     return con->window_id;
 280 }
 281
 282 void qemu_console_set_window_id(QemuConsole *con, int window_id)
 283 {
 284     con->window_id = window_id;
 285 }
 286
 287 void graphic_hw_invalidate(QemuConsole *con)
 288 {
 289     if (!con) {
 290         con = active_console;
 291     }
 292     if (con && con->hw_ops->invalidate) {
 293         con->hw_ops->invalidate(con->hw);
 294     }
 295 }
 296
 297 static void ppm_save(const char *filename, DisplaySurface *ds,
 298                      Error **errp)
 299 {
 300     int width = pixman_image_get_width(ds->image);
 301     int height = pixman_image_get_height(ds->image);
 302     int fd;
 303     FILE *f;
 304     int y;
 305     int ret;
 306     pixman_image_t *linebuf;
 307
 308     trace_ppm_save(filename, ds);
 309     fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
 310     if (fd == -1) {
 311         error_setg(errp, "failed to open file '%s': %s", filename,
 312                    strerror(errno));
 313         return;
 314     }
 315     f = fdopen(fd, "wb");
 316     ret = fprintf(f, "P6\n%d %d\n%d\n", width, height, 255);
 317     if (ret < 0) {
 318         linebuf = NULL;
 319         goto write_err;
 320     }
 321     linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
 322     for (y = 0; y < height; y++) {
 323         qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
 324         clearerr(f);
 325         ret = fwrite(pixman_image_get_data(linebuf), 1,
 326                      pixman_image_get_stride(linebuf), f);
 327         (void)ret;
 328         if (ferror(f)) {
 329             goto write_err;
 330         }
 331     }
 332
 333 out:
 334     qemu_pixman_image_unref(linebuf);
 335     fclose(f);
 336     return;
 337
 338 write_err:
 339     error_setg(errp, "failed to write to file '%s': %s", filename,
 340                strerror(errno));
 341     unlink(filename);
 342     goto out;
 343 }
 344
 345 void qmp_screendump(const char *filename, Error **errp)
 346 {
 347     QemuConsole *con = qemu_console_lookup_by_index(0);
 348     DisplaySurface *surface;
 349
 350     if (con == NULL) {
 351         error_setg(errp, "There is no QemuConsole I can screendump from.");
 352         return;
 353     }
 354
 355     graphic_hw_update(con);
 356     surface = qemu_console_surface(con);
 357     ppm_save(filename, surface, errp);
 358 }
 359
 360 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
 361 {
 362     if (!con) {
 363         con = active_console;
 364     }
 365     if (con && con->hw_ops->text_update) {
 366         con->hw_ops->text_update(con->hw, chardata);
 367     }
 368 }
 369
 370 static void vga_fill_rect(QemuConsole *con,
 371                           int posx, int posy, int width, int height,
 372                           pixman_color_t color)
 373 {
 374     DisplaySurface *surface = qemu_console_surface(con);
 375     pixman_rectangle16_t rect = {
 376         .x = posx, .y = posy, .width = width, .height = height
 377     };
 378
 379     pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
 380                                  &color, 1, &rect);
 381 }
 382
 383 /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
 384 static void vga_bitblt(QemuConsole *con,
 385                        int xs, int ys, int xd, int yd, int w, int h)
 386 {
 387     DisplaySurface *surface = qemu_console_surface(con);
 388
 389     pixman_image_composite(PIXMAN_OP_SRC,
 390                            surface->image, NULL, surface->image,
 391                            xs, ys, 0, 0, xd, yd, w, h);
 392 }
 393
 394 /***********************************************************/
 395 /* basic char display */
 396
 397 #define FONT_HEIGHT 16
 398 #define FONT_WIDTH 8
 399
 400 #include "vgafont.h"
 401
 402 #define QEMU_RGB(r, g, b)                                               \
 403     { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
 404
 405 static const pixman_color_t color_table_rgb[2][8] = {
 406     {   /* dark */
 407         [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
 408         [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
 409         [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
 410         [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
 411         [QEMU_COLOR_RED]     = QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
 412         [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
 413         [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
 414         [QEMU_COLOR_WHITE]   = QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
 415     },
 416     {   /* bright */
 417         [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
 418         [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
 419         [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xff, 0x00),  /* green */
 420         [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
 421         [QEMU_COLOR_RED]     = QEMU_RGB(0xff, 0x00, 0x00),  /* red */
 422         [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
 423         [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
 424         [QEMU_COLOR_WHITE]   = QEMU_RGB(0xff, 0xff, 0xff),  /* white */
 425     }
 426 };
 427
 428 static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
 429                           TextAttributes *t_attrib)
 430 {
 431     static pixman_image_t *glyphs[256];
 432     DisplaySurface *surface = qemu_console_surface(s);
 433     pixman_color_t fgcol, bgcol;
 434
 435     if (t_attrib->invers) {
 436         bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
 437         fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
 438     } else {
 439         fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
 440         bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
 441     }
 442
 443     if (!glyphs[ch]) {
 444         glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
 445     }
 446     qemu_pixman_glyph_render(glyphs[ch], surface->image,
 447                              &fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
 448 }
 449
 450 static void text_console_resize(QemuConsole *s)
 451 {
 452     TextCell *cells, *c, *c1;
 453     int w1, x, y, last_width;
 454
 455     last_width = s->width;
 456     s->width = surface_width(s->surface) / FONT_WIDTH;
 457     s->height = surface_height(s->surface) / FONT_HEIGHT;
 458
 459     w1 = last_width;
 460     if (s->width < w1)
 461         w1 = s->width;
 462
 463     cells = g_new(TextCell, s->width * s->total_height);
 464     for(y = 0; y < s->total_height; y++) {
 465         c = &cells[y * s->width];
 466         if (w1 > 0) {
 467             c1 = &s->cells[y * last_width];
 468             for(x = 0; x < w1; x++) {
 469                 *c++ = *c1++;
 470             }
 471         }
 472         for(x = w1; x < s->width; x++) {
 473             c->ch = ' ';
 474             c->t_attrib = s->t_attrib_default;
 475             c++;
 476         }
 477     }
 478     g_free(s->cells);
 479     s->cells = cells;
 480 }
 481
 482 static inline void text_update_xy(QemuConsole *s, int x, int y)
 483 {
 484     s->text_x[0] = MIN(s->text_x[0], x);
 485     s->text_x[1] = MAX(s->text_x[1], x);
 486     s->text_y[0] = MIN(s->text_y[0], y);
 487     s->text_y[1] = MAX(s->text_y[1], y);
 488 }
 489
 490 static void invalidate_xy(QemuConsole *s, int x, int y)
 491 {
 492     if (!qemu_console_is_visible(s)) {
 493         return;
 494     }
 495     if (s->update_x0 > x * FONT_WIDTH)
 496         s->update_x0 = x * FONT_WIDTH;
 497     if (s->update_y0 > y * FONT_HEIGHT)
 498         s->update_y0 = y * FONT_HEIGHT;
 499     if (s->update_x1 < (x + 1) * FONT_WIDTH)
 500         s->update_x1 = (x + 1) * FONT_WIDTH;
 501     if (s->update_y1 < (y + 1) * FONT_HEIGHT)
 502         s->update_y1 = (y + 1) * FONT_HEIGHT;
 503 }
 504
 505 static void update_xy(QemuConsole *s, int x, int y)
 506 {
 507     TextCell *c;
 508     int y1, y2;
 509
 510     if (s->ds->have_text) {
 511         text_update_xy(s, x, y);
 512     }
 513
 514     y1 = (s->y_base + y) % s->total_height;
 515     y2 = y1 - s->y_displayed;
 516     if (y2 < 0) {
 517         y2 += s->total_height;
 518     }
 519     if (y2 < s->height) {
 520         c = &s->cells[y1 * s->width + x];
 521         vga_putcharxy(s, x, y2, c->ch,
 522                       &(c->t_attrib));
 523         invalidate_xy(s, x, y2);
 524     }
 525 }
 526
 527 static void console_show_cursor(QemuConsole *s, int show)
 528 {
 529     TextCell *c;
 530     int y, y1;
 531     int x = s->x;
 532
 533     if (s->ds->have_text) {
 534         s->cursor_invalidate = 1;
 535     }
 536
 537     if (x >= s->width) {
 538         x = s->width - 1;
 539     }
 540     y1 = (s->y_base + s->y) % s->total_height;
 541     y = y1 - s->y_displayed;
 542     if (y < 0) {
 543         y += s->total_height;
 544     }
 545     if (y < s->height) {
 546         c = &s->cells[y1 * s->width + x];
 547         if (show && cursor_visible_phase) {
 548             TextAttributes t_attrib = s->t_attrib_default;
 549             t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
 550             vga_putcharxy(s, x, y, c->ch, &t_attrib);
 551         } else {
 552             vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
 553         }
 554         invalidate_xy(s, x, y);
 555     }
 556 }
 557
 558 static void console_refresh(QemuConsole *s)
 559 {
 560     DisplaySurface *surface = qemu_console_surface(s);
 561     TextCell *c;
 562     int x, y, y1;
 563
 564     if (s->ds->have_text) {
 565         s->text_x[0] = 0;
 566         s->text_y[0] = 0;
 567         s->text_x[1] = s->width - 1;
 568         s->text_y[1] = s->height - 1;
 569         s->cursor_invalidate = 1;
 570     }
 571
 572     vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
 573                   color_table_rgb[0][QEMU_COLOR_BLACK]);
 574     y1 = s->y_displayed;
 575     for (y = 0; y < s->height; y++) {
 576         c = s->cells + y1 * s->width;
 577         for (x = 0; x < s->width; x++) {
 578             vga_putcharxy(s, x, y, c->ch,
 579                           &(c->t_attrib));
 580             c++;
 581         }
 582         if (++y1 == s->total_height) {
 583             y1 = 0;
 584         }
 585     }
 586     console_show_cursor(s, 1);
 587     dpy_gfx_update(s, 0, 0,
 588                    surface_width(surface), surface_height(surface));
 589 }
 590
 591 static void console_scroll(QemuConsole *s, int ydelta)
 592 {
 593     int i, y1;
 594
 595     if (ydelta > 0) {
 596         for(i = 0; i < ydelta; i++) {
 597             if (s->y_displayed == s->y_base)
 598                 break;
 599             if (++s->y_displayed == s->total_height)
 600                 s->y_displayed = 0;
 601         }
 602     } else {
 603         ydelta = -ydelta;
 604         i = s->backscroll_height;
 605         if (i > s->total_height - s->height)
 606             i = s->total_height - s->height;
 607         y1 = s->y_base - i;
 608         if (y1 < 0)
 609             y1 += s->total_height;
 610         for(i = 0; i < ydelta; i++) {
 611             if (s->y_displayed == y1)
 612                 break;
 613             if (--s->y_displayed < 0)
 614                 s->y_displayed = s->total_height - 1;
 615         }
 616     }
 617     console_refresh(s);
 618 }
 619
 620 static void console_put_lf(QemuConsole *s)
 621 {
 622     TextCell *c;
 623     int x, y1;
 624
 625     s->y++;
 626     if (s->y >= s->height) {
 627         s->y = s->height - 1;
 628
 629         if (s->y_displayed == s->y_base) {
 630             if (++s->y_displayed == s->total_height)
 631                 s->y_displayed = 0;
 632         }
 633         if (++s->y_base == s->total_height)
 634             s->y_base = 0;
 635         if (s->backscroll_height < s->total_height)
 636             s->backscroll_height++;
 637         y1 = (s->y_base + s->height - 1) % s->total_height;
 638         c = &s->cells[y1 * s->width];
 639         for(x = 0; x < s->width; x++) {
 640             c->ch = ' ';
 641             c->t_attrib = s->t_attrib_default;
 642             c++;
 643         }
 644         if (s->y_displayed == s->y_base) {
 645             if (s->ds->have_text) {
 646                 s->text_x[0] = 0;
 647                 s->text_y[0] = 0;
 648                 s->text_x[1] = s->width - 1;
 649                 s->text_y[1] = s->height - 1;
 650             }
 651
 652             vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
 653                        s->width * FONT_WIDTH,
 654                        (s->height - 1) * FONT_HEIGHT);
 655             vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
 656                           s->width * FONT_WIDTH, FONT_HEIGHT,
 657                           color_table_rgb[0][s->t_attrib_default.bgcol]);
 658             s->update_x0 = 0;
 659             s->update_y0 = 0;
 660             s->update_x1 = s->width * FONT_WIDTH;
 661             s->update_y1 = s->height * FONT_HEIGHT;
 662         }
 663     }
 664 }
 665
 666 /* Set console attributes depending on the current escape codes.
 667  * NOTE: I know this code is not very efficient (checking every color for it
 668  * self) but it is more readable and better maintainable.
 669  */
 670 static void console_handle_escape(QemuConsole *s)
 671 {
 672     int i;
 673
 674     for (i=0; i<s->nb_esc_params; i++) {
 675         switch (s->esc_params[i]) {
 676             case 0: /* reset all console attributes to default */
 677                 s->t_attrib = s->t_attrib_default;
 678                 break;
 679             case 1:
 680                 s->t_attrib.bold = 1;
 681                 break;
 682             case 4:
 683                 s->t_attrib.uline = 1;
 684                 break;
 685             case 5:
 686                 s->t_attrib.blink = 1;
 687                 break;
 688             case 7:
 689                 s->t_attrib.invers = 1;
 690                 break;
 691             case 8:
 692                 s->t_attrib.unvisible = 1;
 693                 break;
 694             case 22:
 695                 s->t_attrib.bold = 0;
 696                 break;
 697             case 24:
 698                 s->t_attrib.uline = 0;
 699                 break;
 700             case 25:
 701                 s->t_attrib.blink = 0;
 702                 break;
 703             case 27:
 704                 s->t_attrib.invers = 0;
 705                 break;
 706             case 28:
 707                 s->t_attrib.unvisible = 0;
 708                 break;
 709             /* set foreground color */
 710             case 30:
 711                 s->t_attrib.fgcol = QEMU_COLOR_BLACK;
 712                 break;
 713             case 31:
 714                 s->t_attrib.fgcol = QEMU_COLOR_RED;
 715                 break;
 716             case 32:
 717                 s->t_attrib.fgcol = QEMU_COLOR_GREEN;
 718                 break;
 719             case 33:
 720                 s->t_attrib.fgcol = QEMU_COLOR_YELLOW;
 721                 break;
 722             case 34:
 723                 s->t_attrib.fgcol = QEMU_COLOR_BLUE;
 724                 break;
 725             case 35:
 726                 s->t_attrib.fgcol = QEMU_COLOR_MAGENTA;
 727                 break;
 728             case 36:
 729                 s->t_attrib.fgcol = QEMU_COLOR_CYAN;
 730                 break;
 731             case 37:
 732                 s->t_attrib.fgcol = QEMU_COLOR_WHITE;
 733                 break;
 734             /* set background color */
 735             case 40:
 736                 s->t_attrib.bgcol = QEMU_COLOR_BLACK;
 737                 break;
 738             case 41:
 739                 s->t_attrib.bgcol = QEMU_COLOR_RED;
 740                 break;
 741             case 42:
 742                 s->t_attrib.bgcol = QEMU_COLOR_GREEN;
 743                 break;
 744             case 43:
 745                 s->t_attrib.bgcol = QEMU_COLOR_YELLOW;
 746                 break;
 747             case 44:
 748                 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
 749                 break;
 750             case 45:
 751                 s->t_attrib.bgcol = QEMU_COLOR_MAGENTA;
 752                 break;
 753             case 46:
 754                 s->t_attrib.bgcol = QEMU_COLOR_CYAN;
 755                 break;
 756             case 47:
 757                 s->t_attrib.bgcol = QEMU_COLOR_WHITE;
 758                 break;
 759         }
 760     }
 761 }
 762
 763 static void console_clear_xy(QemuConsole *s, int x, int y)
 764 {
 765     int y1 = (s->y_base + y) % s->total_height;
 766     TextCell *c = &s->cells[y1 * s->width + x];
 767     c->ch = ' ';
 768     c->t_attrib = s->t_attrib_default;
 769     update_xy(s, x, y);
 770 }
 771
 772 static void console_put_one(QemuConsole *s, int ch)
 773 {
 774     TextCell *c;
 775     int y1;
 776     if (s->x >= s->width) {
 777         /* line wrap */
 778         s->x = 0;
 779         console_put_lf(s);
 780     }
 781     y1 = (s->y_base + s->y) % s->total_height;
 782     c = &s->cells[y1 * s->width + s->x];
 783     c->ch = ch;
 784     c->t_attrib = s->t_attrib;
 785     update_xy(s, s->x, s->y);
 786     s->x++;
 787 }
 788
 789 static void console_respond_str(QemuConsole *s, const char *buf)
 790 {
 791     while (*buf) {
 792         console_put_one(s, *buf);
 793         buf++;
 794     }
 795 }
 796
 797 /* set cursor, checking bounds */
 798 static void set_cursor(QemuConsole *s, int x, int y)
 799 {
 800     if (x < 0) {
 801         x = 0;
 802     }
 803     if (y < 0) {
 804         y = 0;
 805     }
 806     if (y >= s->height) {
 807         y = s->height - 1;
 808     }
 809     if (x >= s->width) {
 810         x = s->width - 1;
 811     }
 812
 813     s->x = x;
 814     s->y = y;
 815 }
 816
 817 static void console_putchar(QemuConsole *s, int ch)
 818 {
 819     int i;
 820     int x, y;
 821     char response[40];
 822
 823     switch(s->state) {
 824     case TTY_STATE_NORM:
 825         switch(ch) {
 826         case '\r':  /* carriage return */
 827             s->x = 0;
 828             break;
 829         case '\n':  /* newline */
 830             console_put_lf(s);
 831             break;
 832         case '\b':  /* backspace */
 833             if (s->x > 0)
 834                 s->x--;
 835             break;
 836         case '\t':  /* tabspace */
 837             if (s->x + (8 - (s->x % 8)) > s->width) {
 838                 s->x = 0;
 839                 console_put_lf(s);
 840             } else {
 841                 s->x = s->x + (8 - (s->x % 8));
 842             }
 843             break;
 844         case '\a':  /* alert aka. bell */
 845             /* TODO: has to be implemented */
 846             break;
 847         case 14:
 848             /* SI (shift in), character set 0 (ignored) */
 849             break;
 850         case 15:
 851             /* SO (shift out), character set 1 (ignored) */
 852             break;
 853         case 27:    /* esc (introducing an escape sequence) */
 854             s->state = TTY_STATE_ESC;
 855             break;
 856         default:
 857             console_put_one(s, ch);
 858             break;
 859         }
 860         break;
 861     case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
 862         if (ch == '[') {
 863             for(i=0;i<MAX_ESC_PARAMS;i++)
 864                 s->esc_params[i] = 0;
 865             s->nb_esc_params = 0;
 866             s->state = TTY_STATE_CSI;
 867         } else {
 868             s->state = TTY_STATE_NORM;
 869         }
 870         break;
 871     case TTY_STATE_CSI: /* handle escape sequence parameters */
 872         if (ch >= '0' && ch <= '9') {
 873             if (s->nb_esc_params < MAX_ESC_PARAMS) {
 874                 int *param = &s->esc_params[s->nb_esc_params];
 875                 int digit = (ch - '0');
 876
 877                 *param = (*param <= (INT_MAX - digit) / 10) ?
 878                          *param * 10 + digit : INT_MAX;
 879             }
 880         } else {
 881             if (s->nb_esc_params < MAX_ESC_PARAMS)
 882                 s->nb_esc_params++;
 883             if (ch == ';')
 884                 break;
 885             trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
 886                                       ch, s->nb_esc_params);
 887             s->state = TTY_STATE_NORM;
 888             switch(ch) {
 889             case 'A':
 890                 /* move cursor up */
 891                 if (s->esc_params[0] == 0) {
 892                     s->esc_params[0] = 1;
 893                 }
 894                 set_cursor(s, s->x, s->y - s->esc_params[0]);
 895                 break;
 896             case 'B':
 897                 /* move cursor down */
 898                 if (s->esc_params[0] == 0) {
 899                     s->esc_params[0] = 1;
 900                 }
 901                 set_cursor(s, s->x, s->y + s->esc_params[0]);
 902                 break;
 903             case 'C':
 904                 /* move cursor right */
 905                 if (s->esc_params[0] == 0) {
 906                     s->esc_params[0] = 1;
 907                 }
 908                 set_cursor(s, s->x + s->esc_params[0], s->y);
 909                 break;
 910             case 'D':
 911                 /* move cursor left */
 912                 if (s->esc_params[0] == 0) {
 913                     s->esc_params[0] = 1;
 914                 }
 915                 set_cursor(s, s->x - s->esc_params[0], s->y);
 916                 break;
 917             case 'G':
 918                 /* move cursor to column */
 919                 set_cursor(s, s->esc_params[0] - 1, s->y);
 920                 break;
 921             case 'f':
 922             case 'H':
 923                 /* move cursor to row, column */
 924                 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
 925                 break;
 926             case 'J':
 927                 switch (s->esc_params[0]) {
 928                 case 0:
 929                     /* clear to end of screen */
 930                     for (y = s->y; y < s->height; y++) {
 931                         for (x = 0; x < s->width; x++) {
 932                             if (y == s->y && x < s->x) {
 933                                 continue;
 934                             }
 935                             console_clear_xy(s, x, y);
 936                         }
 937                     }
 938                     break;
 939                 case 1:
 940                     /* clear from beginning of screen */
 941                     for (y = 0; y <= s->y; y++) {
 942                         for (x = 0; x < s->width; x++) {
 943                             if (y == s->y && x > s->x) {
 944                                 break;
 945                             }
 946                             console_clear_xy(s, x, y);
 947                         }
 948                     }
 949                     break;
 950                 case 2:
 951                     /* clear entire screen */
 952                     for (y = 0; y <= s->height; y++) {
 953                         for (x = 0; x < s->width; x++) {
 954                             console_clear_xy(s, x, y);
 955                         }
 956                     }
 957                     break;
 958                 }
 959                 break;
 960             case 'K':
 961                 switch (s->esc_params[0]) {
 962                 case 0:
 963                     /* clear to eol */
 964                     for(x = s->x; x < s->width; x++) {
 965                         console_clear_xy(s, x, s->y);
 966                     }
 967                     break;
 968                 case 1:
 969                     /* clear from beginning of line */
 970                     for (x = 0; x <= s->x; x++) {
 971                         console_clear_xy(s, x, s->y);
 972                     }
 973                     break;
 974                 case 2:
 975                     /* clear entire line */
 976                     for(x = 0; x < s->width; x++) {
 977                         console_clear_xy(s, x, s->y);
 978                     }
 979                     break;
 980                 }
 981                 break;
 982             case 'm':
 983                 console_handle_escape(s);
 984                 break;
 985             case 'n':
 986                 switch (s->esc_params[0]) {
 987                 case 5:
 988                     /* report console status (always succeed)*/
 989                     console_respond_str(s, "\033[0n");
 990                     break;
 991                 case 6:
 992                     /* report cursor position */
 993                     sprintf(response, "\033[%d;%dR",
 994                            (s->y_base + s->y) % s->total_height + 1,
 995                             s->x + 1);
 996                     console_respond_str(s, response);
 997                     break;
 998                 }
 999                 break;
1000             case 's':
1001                 /* save cursor position */
1002                 s->x_saved = s->x;
1003                 s->y_saved = s->y;
1004                 break;
1005             case 'u':
1006                 /* restore cursor position */
1007                 s->x = s->x_saved;
1008                 s->y = s->y_saved;
1009                 break;
1010             default:
1011                 trace_console_putchar_unhandled(ch);
1012                 break;
1013             }
1014             break;
1015         }
1016     }
1017 }
1018
1019 void console_select(unsigned int index)
1020 {
1021     DisplayChangeListener *dcl;
1022     QemuConsole *s;
1023
1024     trace_console_select(index);
1025     s = qemu_console_lookup_by_index(index);
1026     if (s) {
1027         DisplayState *ds = s->ds;
1028
1029         active_console = s;
1030         if (ds->have_gfx) {
1031             QLIST_FOREACH(dcl, &ds->listeners, next) {
1032                 if (dcl->con != NULL) {
1033                     continue;
1034                 }
1035                 if (dcl->ops->dpy_gfx_switch) {
1036                     dcl->ops->dpy_gfx_switch(dcl, s->surface);
1037                 }
1038             }
1039             dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1040                            surface_height(s->surface));
1041         }
1042         if (ds->have_text) {
1043             dpy_text_resize(s, s->width, s->height);
1044         }
1045         text_console_update_cursor(NULL);
1046     }
1047 }
1048
1049 typedef struct VCChardev {
1050     Chardev parent;
1051     QemuConsole *console;
1052 } VCChardev;
1053
1054 #define TYPE_CHARDEV_VC "chardev-vc"
1055 #define VC_CHARDEV(obj) OBJECT_CHECK(VCChardev, (obj), TYPE_CHARDEV_VC)
1056
1057 static int vc_chr_write(Chardev *chr, const uint8_t *buf, int len)
1058 {
1059     VCChardev *drv = VC_CHARDEV(chr);
1060     QemuConsole *s = drv->console;
1061     int i;
1062
1063     if (!s->ds) {
1064         return 0;
1065     }
1066
1067     s->update_x0 = s->width * FONT_WIDTH;
1068     s->update_y0 = s->height * FONT_HEIGHT;
1069     s->update_x1 = 0;
1070     s->update_y1 = 0;
1071     console_show_cursor(s, 0);
1072     for(i = 0; i < len; i++) {
1073         console_putchar(s, buf[i]);
1074     }
1075     console_show_cursor(s, 1);
1076     if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1077         dpy_gfx_update(s, s->update_x0, s->update_y0,
1078                        s->update_x1 - s->update_x0,
1079                        s->update_y1 - s->update_y0);
1080     }
1081     return len;
1082 }
1083
1084 static void kbd_send_chars(void *opaque)
1085 {
1086     QemuConsole *s = opaque;
1087     int len;
1088     uint8_t buf[16];
1089
1090     len = qemu_chr_be_can_write(s->chr);
1091     if (len > s->out_fifo.count)
1092         len = s->out_fifo.count;
1093     if (len > 0) {
1094         if (len > sizeof(buf))
1095             len = sizeof(buf);
1096         qemu_fifo_read(&s->out_fifo, buf, len);
1097         qemu_chr_be_write(s->chr, buf, len);
1098     }
1099     /* characters are pending: we send them a bit later (XXX:
1100        horrible, should change char device API) */
1101     if (s->out_fifo.count > 0) {
1102         timer_mod(s->kbd_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1);
1103     }
1104 }
1105
1106 /* called when an ascii key is pressed */
1107 void kbd_put_keysym_console(QemuConsole *s, int keysym)
1108 {
1109     uint8_t buf[16], *q;
1110     CharBackend *be;
1111     int c;
1112
1113     if (!s || (s->console_type == GRAPHIC_CONSOLE))
1114         return;
1115
1116     switch(keysym) {
1117     case QEMU_KEY_CTRL_UP:
1118         console_scroll(s, -1);
1119         break;
1120     case QEMU_KEY_CTRL_DOWN:
1121         console_scroll(s, 1);
1122         break;
1123     case QEMU_KEY_CTRL_PAGEUP:
1124         console_scroll(s, -10);
1125         break;
1126     case QEMU_KEY_CTRL_PAGEDOWN:
1127         console_scroll(s, 10);
1128         break;
1129     default:
1130         /* convert the QEMU keysym to VT100 key string */
1131         q = buf;
1132         if (keysym >= 0xe100 && keysym <= 0xe11f) {
1133             *q++ = '\033';
1134             *q++ = '[';
1135             c = keysym - 0xe100;
1136             if (c >= 10)
1137                 *q++ = '0' + (c / 10);
1138             *q++ = '0' + (c % 10);
1139             *q++ = '~';
1140         } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1141             *q++ = '\033';
1142             *q++ = '[';
1143             *q++ = keysym & 0xff;
1144         } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1145             vc_chr_write(s->chr, (const uint8_t *) "\r", 1);
1146             *q++ = '\n';
1147         } else {
1148             *q++ = keysym;
1149         }
1150         if (s->echo) {
1151             vc_chr_write(s->chr, buf, q - buf);
1152         }
1153         be = s->chr->be;
1154         if (be && be->chr_read) {
1155             qemu_fifo_write(&s->out_fifo, buf, q - buf);
1156             kbd_send_chars(s);
1157         }
1158         break;
1159     }
1160 }
1161
1162 static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
1163     [Q_KEY_CODE_UP]     = QEMU_KEY_UP,
1164     [Q_KEY_CODE_DOWN]   = QEMU_KEY_DOWN,
1165     [Q_KEY_CODE_RIGHT]  = QEMU_KEY_RIGHT,
1166     [Q_KEY_CODE_LEFT]   = QEMU_KEY_LEFT,
1167     [Q_KEY_CODE_HOME]   = QEMU_KEY_HOME,
1168     [Q_KEY_CODE_END]    = QEMU_KEY_END,
1169     [Q_KEY_CODE_PGUP]   = QEMU_KEY_PAGEUP,
1170     [Q_KEY_CODE_PGDN]   = QEMU_KEY_PAGEDOWN,
1171     [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1172     [Q_KEY_CODE_BACKSPACE] = QEMU_KEY_BACKSPACE,
1173 };
1174
1175 bool kbd_put_qcode_console(QemuConsole *s, int qcode)
1176 {
1177     int keysym;
1178
1179     keysym = qcode_to_keysym[qcode];
1180     if (keysym == 0) {
1181         return false;
1182     }
1183     kbd_put_keysym_console(s, keysym);
1184     return true;
1185 }
1186
1187 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1188 {
1189     int i;
1190
1191     for (i = 0; i < len && str[i]; i++) {
1192         kbd_put_keysym_console(s, str[i]);
1193     }
1194 }
1195
1196 void kbd_put_keysym(int keysym)
1197 {
1198     kbd_put_keysym_console(active_console, keysym);
1199 }
1200
1201 static void text_console_invalidate(void *opaque)
1202 {
1203     QemuConsole *s = (QemuConsole *) opaque;
1204
1205     if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1206         text_console_resize(s);
1207     }
1208     console_refresh(s);
1209 }
1210
1211 static void text_console_update(void *opaque, console_ch_t *chardata)
1212 {
1213     QemuConsole *s = (QemuConsole *) opaque;
1214     int i, j, src;
1215
1216     if (s->text_x[0] <= s->text_x[1]) {
1217         src = (s->y_base + s->text_y[0]) * s->width;
1218         chardata += s->text_y[0] * s->width;
1219         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1220             for (j = 0; j < s->width; j++, src++) {
1221                 console_write_ch(chardata ++,
1222                                  ATTR2CHTYPE(s->cells[src].ch,
1223                                              s->cells[src].t_attrib.fgcol,
1224                                              s->cells[src].t_attrib.bgcol,
1225                                              s->cells[src].t_attrib.bold));
1226             }
1227         dpy_text_update(s, s->text_x[0], s->text_y[0],
1228                         s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1229         s->text_x[0] = s->width;
1230         s->text_y[0] = s->height;
1231         s->text_x[1] = 0;
1232         s->text_y[1] = 0;
1233     }
1234     if (s->cursor_invalidate) {
1235         dpy_text_cursor(s, s->x, s->y);
1236         s->cursor_invalidate = 0;
1237     }
1238 }
1239
1240 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1241                                 uint32_t head)
1242 {
1243     Object *obj;
1244     QemuConsole *s;
1245     int i;
1246
1247     obj = object_new(TYPE_QEMU_CONSOLE);
1248     s = QEMU_CONSOLE(obj);
1249     s->head = head;
1250     object_property_add_link(obj, "device", TYPE_DEVICE,
1251                              (Object **)&s->device,
1252                              object_property_allow_set_link,
1253                              OBJ_PROP_LINK_UNREF_ON_RELEASE,
1254                              &error_abort);
1255     object_property_add_uint32_ptr(obj, "head",
1256                                    &s->head, &error_abort);
1257
1258     if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1259         (console_type == GRAPHIC_CONSOLE))) {
1260         active_console = s;
1261     }
1262     s->ds = ds;
1263     s->console_type = console_type;
1264
1265     consoles = g_realloc(consoles, sizeof(*consoles) * (nb_consoles+1));
1266     if (console_type != GRAPHIC_CONSOLE) {
1267         s->index = nb_consoles;
1268         consoles[nb_consoles++] = s;
1269     } else {
1270         /* HACK: Put graphical consoles before text consoles.  */
1271         for (i = nb_consoles; i > 0; i--) {
1272             if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
1273                 break;
1274             consoles[i] = consoles[i - 1];
1275             consoles[i]->index = i;
1276         }
1277         s->index = i;
1278         consoles[i] = s;
1279         nb_consoles++;
1280     }
1281     return s;
1282 }
1283
1284 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1285 {
1286     qemu_pixman_image_unref(surface->image);
1287     surface->image = NULL;
1288
1289     surface->format = PIXMAN_x8r8g8b8;
1290     surface->image = pixman_image_create_bits(surface->format,
1291                                               width, height,
1292                                               NULL, width * 4);
1293     assert(surface->image != NULL);
1294
1295     surface->flags = QEMU_ALLOCATED_FLAG;
1296 }
1297
1298 DisplaySurface *qemu_create_displaysurface(int width, int height)
1299 {
1300     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1301
1302     trace_displaysurface_create(surface, width, height);
1303     qemu_alloc_display(surface, width, height);
1304     return surface;
1305 }
1306
1307 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1308                                                 pixman_format_code_t format,
1309                                                 int linesize, uint8_t *data)
1310 {
1311     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1312
1313     trace_displaysurface_create_from(surface, width, height, format);
1314     surface->format = format;
1315     surface->image = pixman_image_create_bits(surface->format,
1316                                               width, height,
1317                                               (void *)data, linesize);
1318     assert(surface->image != NULL);
1319
1320     return surface;
1321 }
1322
1323 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
1324 {
1325     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1326
1327     trace_displaysurface_create_pixman(surface);
1328     surface->format = pixman_image_get_format(image);
1329     surface->image = pixman_image_ref(image);
1330
1331     return surface;
1332 }
1333
1334 static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image,
1335                                                void *unused)
1336 {
1337     void *data = pixman_image_get_data(image);
1338     uint32_t size = pixman_image_get_stride(image) *
1339         pixman_image_get_height(image);
1340     cpu_physical_memory_unmap(data, size, 0, 0);
1341 }
1342
1343 DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
1344                                                     pixman_format_code_t format,
1345                                                     int linesize, uint64_t addr)
1346 {
1347     DisplaySurface *surface;
1348     hwaddr size;
1349     void *data;
1350
1351     if (linesize == 0) {
1352         linesize = width * PIXMAN_FORMAT_BPP(format) / 8;
1353     }
1354
1355     size = (hwaddr)linesize * height;
1356     data = cpu_physical_memory_map(addr, &size, 0);
1357     if (size != (hwaddr)linesize * height) {
1358         cpu_physical_memory_unmap(data, size, 0, 0);
1359         return NULL;
1360     }
1361
1362     surface = qemu_create_displaysurface_from
1363         (width, height, format, linesize, data);
1364     pixman_image_set_destroy_function
1365         (surface->image, qemu_unmap_displaysurface_guestmem, NULL);
1366
1367     return surface;
1368 }
1369
1370 static DisplaySurface *qemu_create_message_surface(int w, int h,
1371                                                    const char *msg)
1372 {
1373     DisplaySurface *surface = qemu_create_displaysurface(w, h);
1374     pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
1375     pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
1376     pixman_image_t *glyph;
1377     int len, x, y, i;
1378
1379     len = strlen(msg);
1380     x = (w / FONT_WIDTH  - len) / 2;
1381     y = (h / FONT_HEIGHT - 1)   / 2;
1382     for (i = 0; i < len; i++) {
1383         glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1384         qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1385                                  x+i, y, FONT_WIDTH, FONT_HEIGHT);
1386         qemu_pixman_image_unref(glyph);
1387     }
1388     return surface;
1389 }
1390
1391 void qemu_free_displaysurface(DisplaySurface *surface)
1392 {
1393     if (surface == NULL) {
1394         return;
1395     }
1396     trace_displaysurface_free(surface);
1397     qemu_pixman_image_unref(surface->image);
1398     g_free(surface);
1399 }
1400
1401 bool console_has_gl(QemuConsole *con)
1402 {
1403     return con->gl != NULL;
1404 }
1405
1406 void register_displaychangelistener(DisplayChangeListener *dcl)
1407 {
1408     static const char nodev[] =
1409         "This VM has no graphic display device.";
1410     static DisplaySurface *dummy;
1411     QemuConsole *con;
1412
1413     if (dcl->ops->dpy_gl_ctx_create) {
1414         /* display has opengl support */
1415         assert(dcl->con);
1416         if (dcl->con->gl) {
1417             fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1418                     dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1419             exit(1);
1420         }
1421         dcl->con->gl = dcl;
1422     }
1423
1424     trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1425     dcl->ds = get_alloc_displaystate();
1426     QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1427     gui_setup_refresh(dcl->ds);
1428     if (dcl->con) {
1429         dcl->con->dcls++;
1430         con = dcl->con;
1431     } else {
1432         con = active_console;
1433     }
1434     if (dcl->ops->dpy_gfx_switch) {
1435         if (con) {
1436             dcl->ops->dpy_gfx_switch(dcl, con->surface);
1437         } else {
1438             if (!dummy) {
1439                 dummy = qemu_create_message_surface(640, 480, nodev);
1440             }
1441             dcl->ops->dpy_gfx_switch(dcl, dummy);
1442         }
1443     }
1444     text_console_update_cursor(NULL);
1445 }
1446
1447 void update_displaychangelistener(DisplayChangeListener *dcl,
1448                                   uint64_t interval)
1449 {
1450     DisplayState *ds = dcl->ds;
1451
1452     dcl->update_interval = interval;
1453     if (!ds->refreshing && ds->update_interval > interval) {
1454         timer_mod(ds->gui_timer, ds->last_update + interval);
1455     }
1456 }
1457
1458 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1459 {
1460     DisplayState *ds = dcl->ds;
1461     trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1462     if (dcl->con) {
1463         dcl->con->dcls--;
1464     }
1465     QLIST_REMOVE(dcl, next);
1466     gui_setup_refresh(ds);
1467 }
1468
1469 static void dpy_set_ui_info_timer(void *opaque)
1470 {
1471     QemuConsole *con = opaque;
1472
1473     con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1474 }
1475
1476 bool dpy_ui_info_supported(QemuConsole *con)
1477 {
1478     return con->hw_ops->ui_info != NULL;
1479 }
1480
1481 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1482 {
1483     assert(con != NULL);
1484
1485     if (!dpy_ui_info_supported(con)) {
1486         return -1;
1487     }
1488     if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
1489         /* nothing changed -- ignore */
1490         return 0;
1491     }
1492
1493     /*
1494      * Typically we get a flood of these as the user resizes the window.
1495      * Wait until the dust has settled (one second without updates), then
1496      * go notify the guest.
1497      */
1498     con->ui_info = *info;
1499     timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1500     return 0;
1501 }
1502
1503 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1504 {
1505     DisplayState *s = con->ds;
1506     DisplayChangeListener *dcl;
1507     int width = w;
1508     int height = h;
1509
1510     if (con->surface) {
1511         width = surface_width(con->surface);
1512         height = surface_height(con->surface);
1513     }
1514     x = MAX(x, 0);
1515     y = MAX(y, 0);
1516     x = MIN(x, width);
1517     y = MIN(y, height);
1518     w = MIN(w, width - x);
1519     h = MIN(h, height - y);
1520
1521     if (!qemu_console_is_visible(con)) {
1522         return;
1523     }
1524     QLIST_FOREACH(dcl, &s->listeners, next) {
1525         if (con != (dcl->con ? dcl->con : active_console)) {
1526             continue;
1527         }
1528         if (dcl->ops->dpy_gfx_update) {
1529             dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1530         }
1531     }
1532 }
1533
1534 void dpy_gfx_replace_surface(QemuConsole *con,
1535                              DisplaySurface *surface)
1536 {
1537     DisplayState *s = con->ds;
1538     DisplaySurface *old_surface = con->surface;
1539     DisplayChangeListener *dcl;
1540
1541     con->surface = surface;
1542     QLIST_FOREACH(dcl, &s->listeners, next) {
1543         if (con != (dcl->con ? dcl->con : active_console)) {
1544             continue;
1545         }
1546         if (dcl->ops->dpy_gfx_switch) {
1547             dcl->ops->dpy_gfx_switch(dcl, surface);
1548         }
1549     }
1550     qemu_free_displaysurface(old_surface);
1551 }
1552
1553 bool dpy_gfx_check_format(QemuConsole *con,
1554                           pixman_format_code_t format)
1555 {
1556     DisplayChangeListener *dcl;
1557     DisplayState *s = con->ds;
1558
1559     QLIST_FOREACH(dcl, &s->listeners, next) {
1560         if (dcl->con && dcl->con != con) {
1561             /* dcl bound to another console -> skip */
1562             continue;
1563         }
1564         if (dcl->ops->dpy_gfx_check_format) {
1565             if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1566                 return false;
1567             }
1568         } else {
1569             /* default is to whitelist native 32 bpp only */
1570             if (format != qemu_default_pixman_format(32, true)) {
1571                 return false;
1572             }
1573         }
1574     }
1575     return true;
1576 }
1577
1578 static void dpy_refresh(DisplayState *s)
1579 {
1580     DisplayChangeListener *dcl;
1581
1582     QLIST_FOREACH(dcl, &s->listeners, next) {
1583         if (dcl->ops->dpy_refresh) {
1584             dcl->ops->dpy_refresh(dcl);
1585         }
1586     }
1587 }
1588
1589 void dpy_gfx_copy(QemuConsole *con, int src_x, int src_y,
1590                   int dst_x, int dst_y, int w, int h)
1591 {
1592     DisplayState *s = con->ds;
1593     DisplayChangeListener *dcl;
1594
1595     if (!qemu_console_is_visible(con)) {
1596         return;
1597     }
1598     QLIST_FOREACH(dcl, &s->listeners, next) {
1599         if (con != (dcl->con ? dcl->con : active_console)) {
1600             continue;
1601         }
1602         if (dcl->ops->dpy_gfx_copy) {
1603             dcl->ops->dpy_gfx_copy(dcl, src_x, src_y, dst_x, dst_y, w, h);
1604         } else { /* TODO */
1605             dcl->ops->dpy_gfx_update(dcl, dst_x, dst_y, w, h);
1606         }
1607     }
1608 }
1609
1610 void dpy_text_cursor(QemuConsole *con, int x, int y)
1611 {
1612     DisplayState *s = con->ds;
1613     DisplayChangeListener *dcl;
1614
1615     if (!qemu_console_is_visible(con)) {
1616         return;
1617     }
1618     QLIST_FOREACH(dcl, &s->listeners, next) {
1619         if (con != (dcl->con ? dcl->con : active_console)) {
1620             continue;
1621         }
1622         if (dcl->ops->dpy_text_cursor) {
1623             dcl->ops->dpy_text_cursor(dcl, x, y);
1624         }
1625     }
1626 }
1627
1628 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1629 {
1630     DisplayState *s = con->ds;
1631     DisplayChangeListener *dcl;
1632
1633     if (!qemu_console_is_visible(con)) {
1634         return;
1635     }
1636     QLIST_FOREACH(dcl, &s->listeners, next) {
1637         if (con != (dcl->con ? dcl->con : active_console)) {
1638             continue;
1639         }
1640         if (dcl->ops->dpy_text_update) {
1641             dcl->ops->dpy_text_update(dcl, x, y, w, h);
1642         }
1643     }
1644 }
1645
1646 void dpy_text_resize(QemuConsole *con, int w, int h)
1647 {
1648     DisplayState *s = con->ds;
1649     DisplayChangeListener *dcl;
1650
1651     if (!qemu_console_is_visible(con)) {
1652         return;
1653     }
1654     QLIST_FOREACH(dcl, &s->listeners, next) {
1655         if (con != (dcl->con ? dcl->con : active_console)) {
1656             continue;
1657         }
1658         if (dcl->ops->dpy_text_resize) {
1659             dcl->ops->dpy_text_resize(dcl, w, h);
1660         }
1661     }
1662 }
1663
1664 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1665 {
1666     DisplayState *s = con->ds;
1667     DisplayChangeListener *dcl;
1668
1669     if (!qemu_console_is_visible(con)) {
1670         return;
1671     }
1672     QLIST_FOREACH(dcl, &s->listeners, next) {
1673         if (con != (dcl->con ? dcl->con : active_console)) {
1674             continue;
1675         }
1676         if (dcl->ops->dpy_mouse_set) {
1677             dcl->ops->dpy_mouse_set(dcl, x, y, on);
1678         }
1679     }
1680 }
1681
1682 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1683 {
1684     DisplayState *s = con->ds;
1685     DisplayChangeListener *dcl;
1686
1687     if (!qemu_console_is_visible(con)) {
1688         return;
1689     }
1690     QLIST_FOREACH(dcl, &s->listeners, next) {
1691         if (con != (dcl->con ? dcl->con : active_console)) {
1692             continue;
1693         }
1694         if (dcl->ops->dpy_cursor_define) {
1695             dcl->ops->dpy_cursor_define(dcl, cursor);
1696         }
1697     }
1698 }
1699
1700 bool dpy_cursor_define_supported(QemuConsole *con)
1701 {
1702     DisplayState *s = con->ds;
1703     DisplayChangeListener *dcl;
1704
1705     QLIST_FOREACH(dcl, &s->listeners, next) {
1706         if (dcl->ops->dpy_cursor_define) {
1707             return true;
1708         }
1709     }
1710     return false;
1711 }
1712
1713 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1714                                 struct QEMUGLParams *qparams)
1715 {
1716     assert(con->gl);
1717     return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1718 }
1719
1720 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1721 {
1722     assert(con->gl);
1723     con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1724 }
1725
1726 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1727 {
1728     assert(con->gl);
1729     return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1730 }
1731
1732 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1733 {
1734     assert(con->gl);
1735     return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1736 }
1737
1738 void dpy_gl_scanout(QemuConsole *con,
1739                     uint32_t backing_id, bool backing_y_0_top,
1740                     uint32_t backing_width, uint32_t backing_height,
1741                     uint32_t x, uint32_t y, uint32_t width, uint32_t height)
1742 {
1743     assert(con->gl);
1744     con->gl->ops->dpy_gl_scanout(con->gl, backing_id,
1745                                  backing_y_0_top,
1746                                  backing_width, backing_height,
1747                                  x, y, width, height);
1748 }
1749
1750 void dpy_gl_update(QemuConsole *con,
1751                    uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1752 {
1753     assert(con->gl);
1754     con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1755 }
1756
1757 /***********************************************************/
1758 /* register display */
1759
1760 /* console.c internal use only */
1761 static DisplayState *get_alloc_displaystate(void)
1762 {
1763     if (!display_state) {
1764         display_state = g_new0(DisplayState, 1);
1765         cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1766                                     text_console_update_cursor, NULL);
1767     }
1768     return display_state;
1769 }
1770
1771 /*
1772  * Called by main(), after creating QemuConsoles
1773  * and before initializing ui (sdl/vnc/...).
1774  */
1775 DisplayState *init_displaystate(void)
1776 {
1777     gchar *name;
1778     int i;
1779
1780     get_alloc_displaystate();
1781     for (i = 0; i < nb_consoles; i++) {
1782         if (consoles[i]->console_type != GRAPHIC_CONSOLE &&
1783             consoles[i]->ds == NULL) {
1784             text_console_do_init(consoles[i]->chr, display_state);
1785         }
1786
1787         /* Hook up into the qom tree here (not in new_console()), once
1788          * all QemuConsoles are created and the order / numbering
1789          * doesn't change any more */
1790         name = g_strdup_printf("console[%d]", i);
1791         object_property_add_child(container_get(object_get_root(), "/backend"),
1792                                   name, OBJECT(consoles[i]), &error_abort);
1793         g_free(name);
1794     }
1795
1796     return display_state;
1797 }
1798
1799 void graphic_console_set_hwops(QemuConsole *con,
1800                                const GraphicHwOps *hw_ops,
1801                                void *opaque)
1802 {
1803     con->hw_ops = hw_ops;
1804     con->hw = opaque;
1805 }
1806
1807 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1808                                   const GraphicHwOps *hw_ops,
1809                                   void *opaque)
1810 {
1811     static const char noinit[] =
1812         "Guest has not initialized the display (yet).";
1813     int width = 640;
1814     int height = 480;
1815     QemuConsole *s;
1816     DisplayState *ds;
1817
1818     ds = get_alloc_displaystate();
1819     trace_console_gfx_new();
1820     s = new_console(ds, GRAPHIC_CONSOLE, head);
1821     s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, dpy_set_ui_info_timer, s);
1822     graphic_console_set_hwops(s, hw_ops, opaque);
1823     if (dev) {
1824         object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1825                                  &error_abort);
1826     }
1827
1828     s->surface = qemu_create_message_surface(width, height, noinit);
1829     return s;
1830 }
1831
1832 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1833 {
1834     if (index >= nb_consoles) {
1835         return NULL;
1836     }
1837     return consoles[index];
1838 }
1839
1840 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1841 {
1842     Object *obj;
1843     uint32_t h;
1844     int i;
1845
1846     for (i = 0; i < nb_consoles; i++) {
1847         if (!consoles[i]) {
1848             continue;
1849         }
1850         obj = object_property_get_link(OBJECT(consoles[i]),
1851                                        "device", &error_abort);
1852         if (DEVICE(obj) != dev) {
1853             continue;
1854         }
1855         h = object_property_get_int(OBJECT(consoles[i]),
1856                                     "head", &error_abort);
1857         if (h != head) {
1858             continue;
1859         }
1860         return consoles[i];
1861     }
1862     return NULL;
1863 }
1864
1865 QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
1866                                                 uint32_t head, Error **errp)
1867 {
1868     DeviceState *dev;
1869     QemuConsole *con;
1870
1871     dev = qdev_find_recursive(sysbus_get_default(), device_id);
1872     if (dev == NULL) {
1873         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1874                   "Device '%s' not found", device_id);
1875         return NULL;
1876     }
1877
1878     con = qemu_console_lookup_by_device(dev, head);
1879     if (con == NULL) {
1880         error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
1881                    device_id, head);
1882         return NULL;
1883     }
1884
1885     return con;
1886 }
1887
1888 bool qemu_console_is_visible(QemuConsole *con)
1889 {
1890     return (con == active_console) || (con->dcls > 0);
1891 }
1892
1893 bool qemu_console_is_graphic(QemuConsole *con)
1894 {
1895     if (con == NULL) {
1896         con = active_console;
1897     }
1898     return con && (con->console_type == GRAPHIC_CONSOLE);
1899 }
1900
1901 bool qemu_console_is_fixedsize(QemuConsole *con)
1902 {
1903     if (con == NULL) {
1904         con = active_console;
1905     }
1906     return con && (con->console_type != TEXT_CONSOLE);
1907 }
1908
1909 bool qemu_console_is_gl_blocked(QemuConsole *con)
1910 {
1911     assert(con != NULL);
1912     return con->gl_block;
1913 }
1914
1915 char *qemu_console_get_label(QemuConsole *con)
1916 {
1917     if (con->console_type == GRAPHIC_CONSOLE) {
1918         if (con->device) {
1919             return g_strdup(object_get_typename(con->device));
1920         }
1921         return g_strdup("VGA");
1922     } else {
1923         if (con->chr && con->chr->label) {
1924             return g_strdup(con->chr->label);
1925         }
1926         return g_strdup_printf("vc%d", con->index);
1927     }
1928 }
1929
1930 int qemu_console_get_index(QemuConsole *con)
1931 {
1932     if (con == NULL) {
1933         con = active_console;
1934     }
1935     return con ? con->index : -1;
1936 }
1937
1938 uint32_t qemu_console_get_head(QemuConsole *con)
1939 {
1940     if (con == NULL) {
1941         con = active_console;
1942     }
1943     return con ? con->head : -1;
1944 }
1945
1946 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
1947 {
1948     assert(con != NULL);
1949     return &con->ui_info;
1950 }
1951
1952 int qemu_console_get_width(QemuConsole *con, int fallback)
1953 {
1954     if (con == NULL) {
1955         con = active_console;
1956     }
1957     return con ? surface_width(con->surface) : fallback;
1958 }
1959
1960 int qemu_console_get_height(QemuConsole *con, int fallback)
1961 {
1962     if (con == NULL) {
1963         con = active_console;
1964     }
1965     return con ? surface_height(con->surface) : fallback;
1966 }
1967
1968 static void vc_chr_set_echo(Chardev *chr, bool echo)
1969 {
1970     VCChardev *drv = VC_CHARDEV(chr);
1971     QemuConsole *s = drv->console;
1972
1973     s->echo = echo;
1974 }
1975
1976 static void text_console_update_cursor_timer(void)
1977 {
1978     timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
1979               + CONSOLE_CURSOR_PERIOD / 2);
1980 }
1981
1982 static void text_console_update_cursor(void *opaque)
1983 {
1984     QemuConsole *s;
1985     int i, count = 0;
1986
1987     cursor_visible_phase = !cursor_visible_phase;
1988
1989     for (i = 0; i < nb_consoles; i++) {
1990         s = consoles[i];
1991         if (qemu_console_is_graphic(s) ||
1992             !qemu_console_is_visible(s)) {
1993             continue;
1994         }
1995         count++;
1996         graphic_hw_invalidate(s);
1997     }
1998
1999     if (count) {
2000         text_console_update_cursor_timer();
2001     }
2002 }
2003
2004 static const GraphicHwOps text_console_ops = {
2005     .invalidate  = text_console_invalidate,
2006     .text_update = text_console_update,
2007 };
2008
2009 static void text_console_do_init(Chardev *chr, DisplayState *ds)
2010 {
2011     VCChardev *drv = VC_CHARDEV(chr);
2012     QemuConsole *s = drv->console;
2013     int g_width = 80 * FONT_WIDTH;
2014     int g_height = 24 * FONT_HEIGHT;
2015
2016     s->out_fifo.buf = s->out_fifo_buf;
2017     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
2018     s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
2019     s->ds = ds;
2020
2021     s->y_displayed = 0;
2022     s->y_base = 0;
2023     s->total_height = DEFAULT_BACKSCROLL;
2024     s->x = 0;
2025     s->y = 0;
2026     if (!s->surface) {
2027         if (active_console && active_console->surface) {
2028             g_width = surface_width(active_console->surface);
2029             g_height = surface_height(active_console->surface);
2030         }
2031         s->surface = qemu_create_displaysurface(g_width, g_height);
2032     }
2033
2034     s->hw_ops = &text_console_ops;
2035     s->hw = s;
2036
2037     /* Set text attribute defaults */
2038     s->t_attrib_default.bold = 0;
2039     s->t_attrib_default.uline = 0;
2040     s->t_attrib_default.blink = 0;
2041     s->t_attrib_default.invers = 0;
2042     s->t_attrib_default.unvisible = 0;
2043     s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
2044     s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
2045     /* set current text attributes to default */
2046     s->t_attrib = s->t_attrib_default;
2047     text_console_resize(s);
2048
2049     if (chr->label) {
2050         char msg[128];
2051         int len;
2052
2053         s->t_attrib.bgcol = QEMU_COLOR_BLUE;
2054         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
2055         vc_chr_write(chr, (uint8_t *)msg, len);
2056         s->t_attrib = s->t_attrib_default;
2057     }
2058
2059     qemu_chr_be_generic_open(chr);
2060 }
2061
2062 static void vc_chr_open(Chardev *chr,
2063                         ChardevBackend *backend,
2064                         bool *be_opened,
2065                         Error **errp)
2066 {
2067     ChardevVC *vc = backend->u.vc.data;
2068     VCChardev *drv = VC_CHARDEV(chr);
2069     QemuConsole *s;
2070     unsigned width = 0;
2071     unsigned height = 0;
2072
2073     if (vc->has_width) {
2074         width = vc->width;
2075     } else if (vc->has_cols) {
2076         width = vc->cols * FONT_WIDTH;
2077     }
2078
2079     if (vc->has_height) {
2080         height = vc->height;
2081     } else if (vc->has_rows) {
2082         height = vc->rows * FONT_HEIGHT;
2083     }
2084
2085     trace_console_txt_new(width, height);
2086     if (width == 0 || height == 0) {
2087         s = new_console(NULL, TEXT_CONSOLE, 0);
2088     } else {
2089         s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
2090         s->surface = qemu_create_displaysurface(width, height);
2091     }
2092
2093     if (!s) {
2094         error_setg(errp, "cannot create text console");
2095         return;
2096     }
2097
2098     s->chr = chr;
2099     drv->console = s;
2100
2101     if (display_state) {
2102         text_console_do_init(chr, display_state);
2103     }
2104
2105     /* console/chardev init sometimes completes elsewhere in a 2nd
2106      * stage, so defer OPENED events until they are fully initialized
2107      */
2108     *be_opened = false;
2109 }
2110
2111 void qemu_console_resize(QemuConsole *s, int width, int height)
2112 {
2113     DisplaySurface *surface;
2114
2115     assert(s->console_type == GRAPHIC_CONSOLE);
2116
2117     if (s->surface && (s->surface->flags & QEMU_ALLOCATED_FLAG) &&
2118         pixman_image_get_width(s->surface->image) == width &&
2119         pixman_image_get_height(s->surface->image) == height) {
2120         return;
2121     }
2122
2123     surface = qemu_create_displaysurface(width, height);
2124     dpy_gfx_replace_surface(s, surface);
2125 }
2126
2127 void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
2128                        int dst_x, int dst_y, int w, int h)
2129 {
2130     assert(con->console_type == GRAPHIC_CONSOLE);
2131     dpy_gfx_copy(con, src_x, src_y, dst_x, dst_y, w, h);
2132 }
2133
2134 DisplaySurface *qemu_console_surface(QemuConsole *console)
2135 {
2136     return console->surface;
2137 }
2138
2139 PixelFormat qemu_default_pixelformat(int bpp)
2140 {
2141     pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2142     PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2143     return pf;
2144 }
2145
2146 void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp)
2147 {
2148     int val;
2149     ChardevVC *vc;
2150
2151     backend->type = CHARDEV_BACKEND_KIND_VC;
2152     vc = backend->u.vc.data = g_new0(ChardevVC, 1);
2153     qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
2154
2155     val = qemu_opt_get_number(opts, "width", 0);
2156     if (val != 0) {
2157         vc->has_width = true;
2158         vc->width = val;
2159     }
2160
2161     val = qemu_opt_get_number(opts, "height", 0);
2162     if (val != 0) {
2163         vc->has_height = true;
2164         vc->height = val;
2165     }
2166
2167     val = qemu_opt_get_number(opts, "cols", 0);
2168     if (val != 0) {
2169         vc->has_cols = true;
2170         vc->cols = val;
2171     }
2172
2173     val = qemu_opt_get_number(opts, "rows", 0);
2174     if (val != 0) {
2175         vc->has_rows = true;
2176         vc->rows = val;
2177     }
2178 }
2179
2180 static const TypeInfo qemu_console_info = {
2181     .name = TYPE_QEMU_CONSOLE,
2182     .parent = TYPE_OBJECT,
2183     .instance_size = sizeof(QemuConsole),
2184     .class_size = sizeof(QemuConsoleClass),
2185 };
2186
2187 static void char_vc_class_init(ObjectClass *oc, void *data)
2188 {
2189     ChardevClass *cc = CHARDEV_CLASS(oc);
2190
2191     cc->parse = qemu_chr_parse_vc;
2192     cc->open = vc_chr_open;
2193     cc->chr_write = vc_chr_write;
2194     cc->chr_set_echo = vc_chr_set_echo;
2195 }
2196
2197 static const TypeInfo char_vc_type_info = {
2198     .name = TYPE_CHARDEV_VC,
2199     .parent = TYPE_CHARDEV,
2200     .instance_size = sizeof(VCChardev),
2201     .class_init = char_vc_class_init,
2202 };
2203
2204 void qemu_console_early_init(void)
2205 {
2206     /* set the default vc driver */
2207     if (!object_class_by_name(TYPE_CHARDEV_VC)) {
2208         type_register(&char_vc_type_info);
2209     }
2210 }
2211
2212 static void register_types(void)
2213 {
2214     type_register_static(&qemu_console_info);
2215 }
2216
2217 type_init(register_types);