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