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
  25 #include "qemu/osdep.h"
  26 #include "ui/console.h"
  27 #include "hw/qdev-core.h"
  28 #include "qapi/error.h"
  29 #include "qapi/qapi-commands-ui.h"
  30 #include "qemu/module.h"
  31 #include "qemu/option.h"
  32 #include "qemu/timer.h"
  33 #include "chardev/char-fe.h"
  34 #include "trace.h"
  35 #include "exec/memory.h"
  36
  37 #define DEFAULT_BACKSCROLL 512
  38 #define CONSOLE_CURSOR_PERIOD 500
  39
  40 typedef struct TextAttributes {
  41     uint8_t fgcol:4;
  42     uint8_t bgcol:4;
  43     uint8_t bold:1;
  44     uint8_t uline:1;
  45     uint8_t blink:1;
  46     uint8_t invers:1;
  47     uint8_t unvisible:1;
  48 } TextAttributes;
  49
  50 typedef struct TextCell {
  51     uint8_t ch;
  52     TextAttributes t_attrib;
  53 } TextCell;
  54
  55 #define MAX_ESC_PARAMS 3
  56
  57 enum TTYState {
  58     TTY_STATE_NORM,
  59     TTY_STATE_ESC,
  60     TTY_STATE_CSI,
  61 };
  62
  63 typedef struct QEMUFIFO {
  64     uint8_t *buf;
  65     int buf_size;
  66     int count, wptr, rptr;
  67 } QEMUFIFO;
  68
  69 static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
  70 {
  71     int l, len;
  72
  73     l = f->buf_size - f->count;
  74     if (len1 > l)
  75         len1 = l;
  76     len = len1;
  77     while (len > 0) {
  78         l = f->buf_size - f->wptr;
  79         if (l > len)
  80             l = len;
  81         memcpy(f->buf + f->wptr, buf, l);
  82         f->wptr += l;
  83         if (f->wptr >= f->buf_size)
  84             f->wptr = 0;
  85         buf += l;
  86         len -= l;
  87     }
  88     f->count += len1;
  89     return len1;
  90 }
  91
  92 static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
  93 {
  94     int l, len;
  95
  96     if (len1 > f->count)
  97         len1 = f->count;
  98     len = len1;
  99     while (len > 0) {
 100         l = f->buf_size - f->rptr;
 101         if (l > len)
 102             l = len;
 103         memcpy(buf, f->buf + f->rptr, l);
 104         f->rptr += l;
 105         if (f->rptr >= f->buf_size)
 106             f->rptr = 0;
 107         buf += l;
 108         len -= l;
 109     }
 110     f->count -= len1;
 111     return len1;
 112 }
 113
 114 typedef enum {
 115     GRAPHIC_CONSOLE,
 116     TEXT_CONSOLE,
 117     TEXT_CONSOLE_FIXED_SIZE
 118 } console_type_t;
 119
 120 struct QemuConsole {
 121     Object parent;
 122
 123     int index;
 124     console_type_t console_type;
 125     DisplayState *ds;
 126     DisplaySurface *surface;
 127     int dcls;
 128     DisplayChangeListener *gl;
 129     bool gl_block;
 130     int window_id;
 131
 132     /* Graphic console state.  */
 133     Object *device;
 134     uint32_t head;
 135     QemuUIInfo ui_info;
 136     QEMUTimer *ui_timer;
 137     const GraphicHwOps *hw_ops;
 138     void *hw;
 139
 140     /* Text console state */
 141     int width;
 142     int height;
 143     int total_height;
 144     int backscroll_height;
 145     int x, y;
 146     int x_saved, y_saved;
 147     int y_displayed;
 148     int y_base;
 149     TextAttributes t_attrib_default; /* default text attributes */
 150     TextAttributes t_attrib; /* currently active text attributes */
 151     TextCell *cells;
 152     int text_x[2], text_y[2], cursor_invalidate;
 153     int echo;
 154
 155     int update_x0;
 156     int update_y0;
 157     int update_x1;
 158     int update_y1;
 159
 160     enum TTYState state;
 161     int esc_params[MAX_ESC_PARAMS];
 162     int nb_esc_params;
 163
 164     Chardev *chr;
 165     /* fifo for key pressed */
 166     QEMUFIFO out_fifo;
 167     uint8_t out_fifo_buf[16];
 168     QEMUTimer *kbd_timer;
 169
 170     QTAILQ_ENTRY(QemuConsole) next;
 171 };
 172
 173 struct DisplayState {
 174     QEMUTimer *gui_timer;
 175     uint64_t last_update;
 176     uint64_t update_interval;
 177     bool refreshing;
 178     bool have_gfx;
 179     bool have_text;
 180
 181     QLIST_HEAD(, DisplayChangeListener) listeners;
 182 };
 183
 184 static DisplayState *display_state;
 185 static QemuConsole *active_console;
 186 static QTAILQ_HEAD(, QemuConsole) consoles =
 187     QTAILQ_HEAD_INITIALIZER(consoles);
 188 static bool cursor_visible_phase;
 189 static QEMUTimer *cursor_timer;
 190
 191 static void text_console_do_init(Chardev *chr, DisplayState *ds);
 192 static void dpy_refresh(DisplayState *s);
 193 static DisplayState *get_alloc_displaystate(void);
 194 static void text_console_update_cursor_timer(void);
 195 static void text_console_update_cursor(void *opaque);
 196
 197 static void gui_update(void *opaque)
 198 {
 199     uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
 200     uint64_t dcl_interval;
 201     DisplayState *ds = opaque;
 202     DisplayChangeListener *dcl;
 203     QemuConsole *con;
 204
 205     ds->refreshing = true;
 206     dpy_refresh(ds);
 207     ds->refreshing = false;
 208
 209     QLIST_FOREACH(dcl, &ds->listeners, next) {
 210         dcl_interval = dcl->update_interval ?
 211             dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
 212         if (interval > dcl_interval) {
 213             interval = dcl_interval;
 214         }
 215     }
 216     if (ds->update_interval != interval) {
 217         ds->update_interval = interval;
 218         QTAILQ_FOREACH(con, &consoles, next) {
 219             if (con->hw_ops->update_interval) {
 220                 con->hw_ops->update_interval(con->hw, interval);
 221             }
 222         }
 223         trace_console_refresh(interval);
 224     }
 225     ds->last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
 226     timer_mod(ds->gui_timer, ds->last_update + interval);
 227 }
 228
 229 static void gui_setup_refresh(DisplayState *ds)
 230 {
 231     DisplayChangeListener *dcl;
 232     bool need_timer = false;
 233     bool have_gfx = false;
 234     bool have_text = false;
 235
 236     QLIST_FOREACH(dcl, &ds->listeners, next) {
 237         if (dcl->ops->dpy_refresh != NULL) {
 238             need_timer = true;
 239         }
 240         if (dcl->ops->dpy_gfx_update != NULL) {
 241             have_gfx = true;
 242         }
 243         if (dcl->ops->dpy_text_update != NULL) {
 244             have_text = true;
 245         }
 246     }
 247
 248     if (need_timer && ds->gui_timer == NULL) {
 249         ds->gui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, gui_update, ds);
 250         timer_mod(ds->gui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
 251     }
 252     if (!need_timer && ds->gui_timer != NULL) {
 253         timer_del(ds->gui_timer);
 254         timer_free(ds->gui_timer);
 255         ds->gui_timer = NULL;
 256     }
 257
 258     ds->have_gfx = have_gfx;
 259     ds->have_text = have_text;
 260 }
 261
 262 void graphic_hw_update(QemuConsole *con)
 263 {
 264     if (!con) {
 265         con = active_console;
 266     }
 267     if (con && con->hw_ops->gfx_update) {
 268         con->hw_ops->gfx_update(con->hw);
 269     }
 270 }
 271
 272 void graphic_hw_gl_block(QemuConsole *con, bool block)
 273 {
 274     assert(con != NULL);
 275
 276     con->gl_block = block;
 277     if (con->hw_ops->gl_block) {
 278         con->hw_ops->gl_block(con->hw, block);
 279     }
 280 }
 281
 282 int qemu_console_get_window_id(QemuConsole *con)
 283 {
 284     return con->window_id;
 285 }
 286
 287 void qemu_console_set_window_id(QemuConsole *con, int window_id)
 288 {
 289     con->window_id = window_id;
 290 }
 291
 292 void graphic_hw_invalidate(QemuConsole *con)
 293 {
 294     if (!con) {
 295         con = active_console;
 296     }
 297     if (con && con->hw_ops->invalidate) {
 298         con->hw_ops->invalidate(con->hw);
 299     }
 300 }
 301
 302 static void ppm_save(const char *filename, DisplaySurface *ds,
 303                      Error **errp)
 304 {
 305     int width = pixman_image_get_width(ds->image);
 306     int height = pixman_image_get_height(ds->image);
 307     int fd;
 308     FILE *f;
 309     int y;
 310     int ret;
 311     pixman_image_t *linebuf;
 312
 313     trace_ppm_save(filename, ds);
 314     fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
 315     if (fd == -1) {
 316         error_setg(errp, "failed to open file '%s': %s", filename,
 317                    strerror(errno));
 318         return;
 319     }
 320     f = fdopen(fd, "wb");
 321     ret = fprintf(f, "P6\n%d %d\n%d\n", width, height, 255);
 322     if (ret < 0) {
 323         linebuf = NULL;
 324         goto write_err;
 325     }
 326     linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
 327     for (y = 0; y < height; y++) {
 328         qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
 329         clearerr(f);
 330         ret = fwrite(pixman_image_get_data(linebuf), 1,
 331                      pixman_image_get_stride(linebuf), f);
 332         (void)ret;
 333         if (ferror(f)) {
 334             goto write_err;
 335         }
 336     }
 337
 338 out:
 339     qemu_pixman_image_unref(linebuf);
 340     fclose(f);
 341     return;
 342
 343 write_err:
 344     error_setg(errp, "failed to write to file '%s': %s", filename,
 345                strerror(errno));
 346     unlink(filename);
 347     goto out;
 348 }
 349
 350 void qmp_screendump(const char *filename, bool has_device, const char *device,
 351                     bool has_head, int64_t head, Error **errp)
 352 {
 353     QemuConsole *con;
 354     DisplaySurface *surface;
 355
 356     if (has_device) {
 357         con = qemu_console_lookup_by_device_name(device, has_head ? head : 0,
 358                                                  errp);
 359         if (!con) {
 360             return;
 361         }
 362     } else {
 363         if (has_head) {
 364             error_setg(errp, "'head' must be specified together with 'device'");
 365             return;
 366         }
 367         con = qemu_console_lookup_by_index(0);
 368         if (!con) {
 369             error_setg(errp, "There is no console to take a screendump from");
 370             return;
 371         }
 372     }
 373
 374     graphic_hw_update(con);
 375     surface = qemu_console_surface(con);
 376     if (!surface) {
 377         error_setg(errp, "no surface");
 378         return;
 379     }
 380
 381     ppm_save(filename, surface, errp);
 382 }
 383
 384 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
 385 {
 386     if (!con) {
 387         con = active_console;
 388     }
 389     if (con && con->hw_ops->text_update) {
 390         con->hw_ops->text_update(con->hw, chardata);
 391     }
 392 }
 393
 394 static void vga_fill_rect(QemuConsole *con,
 395                           int posx, int posy, int width, int height,
 396                           pixman_color_t color)
 397 {
 398     DisplaySurface *surface = qemu_console_surface(con);
 399     pixman_rectangle16_t rect = {
 400         .x = posx, .y = posy, .width = width, .height = height
 401     };
 402
 403     pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
 404                                  &color, 1, &rect);
 405 }
 406
 407 /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
 408 static void vga_bitblt(QemuConsole *con,
 409                        int xs, int ys, int xd, int yd, int w, int h)
 410 {
 411     DisplaySurface *surface = qemu_console_surface(con);
 412
 413     pixman_image_composite(PIXMAN_OP_SRC,
 414                            surface->image, NULL, surface->image,
 415                            xs, ys, 0, 0, xd, yd, w, h);
 416 }
 417
 418 /***********************************************************/
 419 /* basic char display */
 420
 421 #define FONT_HEIGHT 16
 422 #define FONT_WIDTH 8
 423
 424 #include "vgafont.h"
 425
 426 #define QEMU_RGB(r, g, b)                                               \
 427     { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
 428
 429 static const pixman_color_t color_table_rgb[2][8] = {
 430     {   /* dark */
 431         [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
 432         [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
 433         [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
 434         [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
 435         [QEMU_COLOR_RED]     = QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
 436         [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
 437         [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
 438         [QEMU_COLOR_WHITE]   = QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
 439     },
 440     {   /* bright */
 441         [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
 442         [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
 443         [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xff, 0x00),  /* green */
 444         [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
 445         [QEMU_COLOR_RED]     = QEMU_RGB(0xff, 0x00, 0x00),  /* red */
 446         [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
 447         [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
 448         [QEMU_COLOR_WHITE]   = QEMU_RGB(0xff, 0xff, 0xff),  /* white */
 449     }
 450 };
 451
 452 static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
 453                           TextAttributes *t_attrib)
 454 {
 455     static pixman_image_t *glyphs[256];
 456     DisplaySurface *surface = qemu_console_surface(s);
 457     pixman_color_t fgcol, bgcol;
 458
 459     if (t_attrib->invers) {
 460         bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
 461         fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
 462     } else {
 463         fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
 464         bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
 465     }
 466
 467     if (!glyphs[ch]) {
 468         glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
 469     }
 470     qemu_pixman_glyph_render(glyphs[ch], surface->image,
 471                              &fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
 472 }
 473
 474 static void text_console_resize(QemuConsole *s)
 475 {
 476     TextCell *cells, *c, *c1;
 477     int w1, x, y, last_width;
 478
 479     last_width = s->width;
 480     s->width = surface_width(s->surface) / FONT_WIDTH;
 481     s->height = surface_height(s->surface) / FONT_HEIGHT;
 482
 483     w1 = last_width;
 484     if (s->width < w1)
 485         w1 = s->width;
 486
 487     cells = g_new(TextCell, s->width * s->total_height);
 488     for(y = 0; y < s->total_height; y++) {
 489         c = &cells[y * s->width];
 490         if (w1 > 0) {
 491             c1 = &s->cells[y * last_width];
 492             for(x = 0; x < w1; x++) {
 493                 *c++ = *c1++;
 494             }
 495         }
 496         for(x = w1; x < s->width; x++) {
 497             c->ch = ' ';
 498             c->t_attrib = s->t_attrib_default;
 499             c++;
 500         }
 501     }
 502     g_free(s->cells);
 503     s->cells = cells;
 504 }
 505
 506 static inline void text_update_xy(QemuConsole *s, int x, int y)
 507 {
 508     s->text_x[0] = MIN(s->text_x[0], x);
 509     s->text_x[1] = MAX(s->text_x[1], x);
 510     s->text_y[0] = MIN(s->text_y[0], y);
 511     s->text_y[1] = MAX(s->text_y[1], y);
 512 }
 513
 514 static void invalidate_xy(QemuConsole *s, int x, int y)
 515 {
 516     if (!qemu_console_is_visible(s)) {
 517         return;
 518     }
 519     if (s->update_x0 > x * FONT_WIDTH)
 520         s->update_x0 = x * FONT_WIDTH;
 521     if (s->update_y0 > y * FONT_HEIGHT)
 522         s->update_y0 = y * FONT_HEIGHT;
 523     if (s->update_x1 < (x + 1) * FONT_WIDTH)
 524         s->update_x1 = (x + 1) * FONT_WIDTH;
 525     if (s->update_y1 < (y + 1) * FONT_HEIGHT)
 526         s->update_y1 = (y + 1) * FONT_HEIGHT;
 527 }
 528
 529 static void update_xy(QemuConsole *s, int x, int y)
 530 {
 531     TextCell *c;
 532     int y1, y2;
 533
 534     if (s->ds->have_text) {
 535         text_update_xy(s, x, y);
 536     }
 537
 538     y1 = (s->y_base + y) % s->total_height;
 539     y2 = y1 - s->y_displayed;
 540     if (y2 < 0) {
 541         y2 += s->total_height;
 542     }
 543     if (y2 < s->height) {
 544         c = &s->cells[y1 * s->width + x];
 545         vga_putcharxy(s, x, y2, c->ch,
 546                       &(c->t_attrib));
 547         invalidate_xy(s, x, y2);
 548     }
 549 }
 550
 551 static void console_show_cursor(QemuConsole *s, int show)
 552 {
 553     TextCell *c;
 554     int y, y1;
 555     int x = s->x;
 556
 557     if (s->ds->have_text) {
 558         s->cursor_invalidate = 1;
 559     }
 560
 561     if (x >= s->width) {
 562         x = s->width - 1;
 563     }
 564     y1 = (s->y_base + s->y) % s->total_height;
 565     y = y1 - s->y_displayed;
 566     if (y < 0) {
 567         y += s->total_height;
 568     }
 569     if (y < s->height) {
 570         c = &s->cells[y1 * s->width + x];
 571         if (show && cursor_visible_phase) {
 572             TextAttributes t_attrib = s->t_attrib_default;
 573             t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
 574             vga_putcharxy(s, x, y, c->ch, &t_attrib);
 575         } else {
 576             vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
 577         }
 578         invalidate_xy(s, x, y);
 579     }
 580 }
 581
 582 static void console_refresh(QemuConsole *s)
 583 {
 584     DisplaySurface *surface = qemu_console_surface(s);
 585     TextCell *c;
 586     int x, y, y1;
 587
 588     if (s->ds->have_text) {
 589         s->text_x[0] = 0;
 590         s->text_y[0] = 0;
 591         s->text_x[1] = s->width - 1;
 592         s->text_y[1] = s->height - 1;
 593         s->cursor_invalidate = 1;
 594     }
 595
 596     vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
 597                   color_table_rgb[0][QEMU_COLOR_BLACK]);
 598     y1 = s->y_displayed;
 599     for (y = 0; y < s->height; y++) {
 600         c = s->cells + y1 * s->width;
 601         for (x = 0; x < s->width; x++) {
 602             vga_putcharxy(s, x, y, c->ch,
 603                           &(c->t_attrib));
 604             c++;
 605         }
 606         if (++y1 == s->total_height) {
 607             y1 = 0;
 608         }
 609     }
 610     console_show_cursor(s, 1);
 611     dpy_gfx_update(s, 0, 0,
 612                    surface_width(surface), surface_height(surface));
 613 }
 614
 615 static void console_scroll(QemuConsole *s, int ydelta)
 616 {
 617     int i, y1;
 618
 619     if (ydelta > 0) {
 620         for(i = 0; i < ydelta; i++) {
 621             if (s->y_displayed == s->y_base)
 622                 break;
 623             if (++s->y_displayed == s->total_height)
 624                 s->y_displayed = 0;
 625         }
 626     } else {
 627         ydelta = -ydelta;
 628         i = s->backscroll_height;
 629         if (i > s->total_height - s->height)
 630             i = s->total_height - s->height;
 631         y1 = s->y_base - i;
 632         if (y1 < 0)
 633             y1 += s->total_height;
 634         for(i = 0; i < ydelta; i++) {
 635             if (s->y_displayed == y1)
 636                 break;
 637             if (--s->y_displayed < 0)
 638                 s->y_displayed = s->total_height - 1;
 639         }
 640     }
 641     console_refresh(s);
 642 }
 643
 644 static void console_put_lf(QemuConsole *s)
 645 {
 646     TextCell *c;
 647     int x, y1;
 648
 649     s->y++;
 650     if (s->y >= s->height) {
 651         s->y = s->height - 1;
 652
 653         if (s->y_displayed == s->y_base) {
 654             if (++s->y_displayed == s->total_height)
 655                 s->y_displayed = 0;
 656         }
 657         if (++s->y_base == s->total_height)
 658             s->y_base = 0;
 659         if (s->backscroll_height < s->total_height)
 660             s->backscroll_height++;
 661         y1 = (s->y_base + s->height - 1) % s->total_height;
 662         c = &s->cells[y1 * s->width];
 663         for(x = 0; x < s->width; x++) {
 664             c->ch = ' ';
 665             c->t_attrib = s->t_attrib_default;
 666             c++;
 667         }
 668         if (s->y_displayed == s->y_base) {
 669             if (s->ds->have_text) {
 670                 s->text_x[0] = 0;
 671                 s->text_y[0] = 0;
 672                 s->text_x[1] = s->width - 1;
 673                 s->text_y[1] = s->height - 1;
 674             }
 675
 676             vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
 677                        s->width * FONT_WIDTH,
 678                        (s->height - 1) * FONT_HEIGHT);
 679             vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
 680                           s->width * FONT_WIDTH, FONT_HEIGHT,
 681                           color_table_rgb[0][s->t_attrib_default.bgcol]);
 682             s->update_x0 = 0;
 683             s->update_y0 = 0;
 684             s->update_x1 = s->width * FONT_WIDTH;
 685             s->update_y1 = s->height * FONT_HEIGHT;
 686         }
 687     }
 688 }
 689
 690 /* Set console attributes depending on the current escape codes.
 691  * NOTE: I know this code is not very efficient (checking every color for it
 692  * self) but it is more readable and better maintainable.
 693  */
 694 static void console_handle_escape(QemuConsole *s)
 695 {
 696     int i;
 697
 698     for (i=0; i<s->nb_esc_params; i++) {
 699         switch (s->esc_params[i]) {
 700             case 0: /* reset all console attributes to default */
 701                 s->t_attrib = s->t_attrib_default;
 702                 break;
 703             case 1:
 704                 s->t_attrib.bold = 1;
 705                 break;
 706             case 4:
 707                 s->t_attrib.uline = 1;
 708                 break;
 709             case 5:
 710                 s->t_attrib.blink = 1;
 711                 break;
 712             case 7:
 713                 s->t_attrib.invers = 1;
 714                 break;
 715             case 8:
 716                 s->t_attrib.unvisible = 1;
 717                 break;
 718             case 22:
 719                 s->t_attrib.bold = 0;
 720                 break;
 721             case 24:
 722                 s->t_attrib.uline = 0;
 723                 break;
 724             case 25:
 725                 s->t_attrib.blink = 0;
 726                 break;
 727             case 27:
 728                 s->t_attrib.invers = 0;
 729                 break;
 730             case 28:
 731                 s->t_attrib.unvisible = 0;
 732                 break;
 733             /* set foreground color */
 734             case 30:
 735                 s->t_attrib.fgcol = QEMU_COLOR_BLACK;
 736                 break;
 737             case 31:
 738                 s->t_attrib.fgcol = QEMU_COLOR_RED;
 739                 break;
 740             case 32:
 741                 s->t_attrib.fgcol = QEMU_COLOR_GREEN;
 742                 break;
 743             case 33:
 744                 s->t_attrib.fgcol = QEMU_COLOR_YELLOW;
 745                 break;
 746             case 34:
 747                 s->t_attrib.fgcol = QEMU_COLOR_BLUE;
 748                 break;
 749             case 35:
 750                 s->t_attrib.fgcol = QEMU_COLOR_MAGENTA;
 751                 break;
 752             case 36:
 753                 s->t_attrib.fgcol = QEMU_COLOR_CYAN;
 754                 break;
 755             case 37:
 756                 s->t_attrib.fgcol = QEMU_COLOR_WHITE;
 757                 break;
 758             /* set background color */
 759             case 40:
 760                 s->t_attrib.bgcol = QEMU_COLOR_BLACK;
 761                 break;
 762             case 41:
 763                 s->t_attrib.bgcol = QEMU_COLOR_RED;
 764                 break;
 765             case 42:
 766                 s->t_attrib.bgcol = QEMU_COLOR_GREEN;
 767                 break;
 768             case 43:
 769                 s->t_attrib.bgcol = QEMU_COLOR_YELLOW;
 770                 break;
 771             case 44:
 772                 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
 773                 break;
 774             case 45:
 775                 s->t_attrib.bgcol = QEMU_COLOR_MAGENTA;
 776                 break;
 777             case 46:
 778                 s->t_attrib.bgcol = QEMU_COLOR_CYAN;
 779                 break;
 780             case 47:
 781                 s->t_attrib.bgcol = QEMU_COLOR_WHITE;
 782                 break;
 783         }
 784     }
 785 }
 786
 787 static void console_clear_xy(QemuConsole *s, int x, int y)
 788 {
 789     int y1 = (s->y_base + y) % s->total_height;
 790     TextCell *c = &s->cells[y1 * s->width + x];
 791     c->ch = ' ';
 792     c->t_attrib = s->t_attrib_default;
 793     update_xy(s, x, y);
 794 }
 795
 796 static void console_put_one(QemuConsole *s, int ch)
 797 {
 798     TextCell *c;
 799     int y1;
 800     if (s->x >= s->width) {
 801         /* line wrap */
 802         s->x = 0;
 803         console_put_lf(s);
 804     }
 805     y1 = (s->y_base + s->y) % s->total_height;
 806     c = &s->cells[y1 * s->width + s->x];
 807     c->ch = ch;
 808     c->t_attrib = s->t_attrib;
 809     update_xy(s, s->x, s->y);
 810     s->x++;
 811 }
 812
 813 static void console_respond_str(QemuConsole *s, const char *buf)
 814 {
 815     while (*buf) {
 816         console_put_one(s, *buf);
 817         buf++;
 818     }
 819 }
 820
 821 /* set cursor, checking bounds */
 822 static void set_cursor(QemuConsole *s, int x, int y)
 823 {
 824     if (x < 0) {
 825         x = 0;
 826     }
 827     if (y < 0) {
 828         y = 0;
 829     }
 830     if (y >= s->height) {
 831         y = s->height - 1;
 832     }
 833     if (x >= s->width) {
 834         x = s->width - 1;
 835     }
 836
 837     s->x = x;
 838     s->y = y;
 839 }
 840
 841 static void console_putchar(QemuConsole *s, int ch)
 842 {
 843     int i;
 844     int x, y;
 845     char response[40];
 846
 847     switch(s->state) {
 848     case TTY_STATE_NORM:
 849         switch(ch) {
 850         case '\r':  /* carriage return */
 851             s->x = 0;
 852             break;
 853         case '\n':  /* newline */
 854             console_put_lf(s);
 855             break;
 856         case '\b':  /* backspace */
 857             if (s->x > 0)
 858                 s->x--;
 859             break;
 860         case '\t':  /* tabspace */
 861             if (s->x + (8 - (s->x % 8)) > s->width) {
 862                 s->x = 0;
 863                 console_put_lf(s);
 864             } else {
 865                 s->x = s->x + (8 - (s->x % 8));
 866             }
 867             break;
 868         case '\a':  /* alert aka. bell */
 869             /* TODO: has to be implemented */
 870             break;
 871         case 14:
 872             /* SI (shift in), character set 0 (ignored) */
 873             break;
 874         case 15:
 875             /* SO (shift out), character set 1 (ignored) */
 876             break;
 877         case 27:    /* esc (introducing an escape sequence) */
 878             s->state = TTY_STATE_ESC;
 879             break;
 880         default:
 881             console_put_one(s, ch);
 882             break;
 883         }
 884         break;
 885     case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
 886         if (ch == '[') {
 887             for(i=0;i<MAX_ESC_PARAMS;i++)
 888                 s->esc_params[i] = 0;
 889             s->nb_esc_params = 0;
 890             s->state = TTY_STATE_CSI;
 891         } else {
 892             s->state = TTY_STATE_NORM;
 893         }
 894         break;
 895     case TTY_STATE_CSI: /* handle escape sequence parameters */
 896         if (ch >= '0' && ch <= '9') {
 897             if (s->nb_esc_params < MAX_ESC_PARAMS) {
 898                 int *param = &s->esc_params[s->nb_esc_params];
 899                 int digit = (ch - '0');
 900
 901                 *param = (*param <= (INT_MAX - digit) / 10) ?
 902                          *param * 10 + digit : INT_MAX;
 903             }
 904         } else {
 905             if (s->nb_esc_params < MAX_ESC_PARAMS)
 906                 s->nb_esc_params++;
 907             if (ch == ';' || ch == '?') {
 908                 break;
 909             }
 910             trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
 911                                       ch, s->nb_esc_params);
 912             s->state = TTY_STATE_NORM;
 913             switch(ch) {
 914             case 'A':
 915                 /* move cursor up */
 916                 if (s->esc_params[0] == 0) {
 917                     s->esc_params[0] = 1;
 918                 }
 919                 set_cursor(s, s->x, s->y - s->esc_params[0]);
 920                 break;
 921             case 'B':
 922                 /* move cursor down */
 923                 if (s->esc_params[0] == 0) {
 924                     s->esc_params[0] = 1;
 925                 }
 926                 set_cursor(s, s->x, s->y + s->esc_params[0]);
 927                 break;
 928             case 'C':
 929                 /* move cursor right */
 930                 if (s->esc_params[0] == 0) {
 931                     s->esc_params[0] = 1;
 932                 }
 933                 set_cursor(s, s->x + s->esc_params[0], s->y);
 934                 break;
 935             case 'D':
 936                 /* move cursor left */
 937                 if (s->esc_params[0] == 0) {
 938                     s->esc_params[0] = 1;
 939                 }
 940                 set_cursor(s, s->x - s->esc_params[0], s->y);
 941                 break;
 942             case 'G':
 943                 /* move cursor to column */
 944                 set_cursor(s, s->esc_params[0] - 1, s->y);
 945                 break;
 946             case 'f':
 947             case 'H':
 948                 /* move cursor to row, column */
 949                 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
 950                 break;
 951             case 'J':
 952                 switch (s->esc_params[0]) {
 953                 case 0:
 954                     /* clear to end of screen */
 955                     for (y = s->y; y < s->height; y++) {
 956                         for (x = 0; x < s->width; x++) {
 957                             if (y == s->y && x < s->x) {
 958                                 continue;
 959                             }
 960                             console_clear_xy(s, x, y);
 961                         }
 962                     }
 963                     break;
 964                 case 1:
 965                     /* clear from beginning of screen */
 966                     for (y = 0; y <= s->y; y++) {
 967                         for (x = 0; x < s->width; x++) {
 968                             if (y == s->y && x > s->x) {
 969                                 break;
 970                             }
 971                             console_clear_xy(s, x, y);
 972                         }
 973                     }
 974                     break;
 975                 case 2:
 976                     /* clear entire screen */
 977                     for (y = 0; y <= s->height; y++) {
 978                         for (x = 0; x < s->width; x++) {
 979                             console_clear_xy(s, x, y);
 980                         }
 981                     }
 982                     break;
 983                 }
 984                 break;
 985             case 'K':
 986                 switch (s->esc_params[0]) {
 987                 case 0:
 988                     /* clear to eol */
 989                     for(x = s->x; x < s->width; x++) {
 990                         console_clear_xy(s, x, s->y);
 991                     }
 992                     break;
 993                 case 1:
 994                     /* clear from beginning of line */
 995                     for (x = 0; x <= s->x; x++) {
 996                         console_clear_xy(s, x, s->y);
 997                     }
 998                     break;
 999                 case 2:
1000                     /* clear entire line */
1001                     for(x = 0; x < s->width; x++) {
1002                         console_clear_xy(s, x, s->y);
1003                     }
1004                     break;
1005                 }
1006                 break;
1007             case 'm':
1008                 console_handle_escape(s);
1009                 break;
1010             case 'n':
1011                 switch (s->esc_params[0]) {
1012                 case 5:
1013                     /* report console status (always succeed)*/
1014                     console_respond_str(s, "\033[0n");
1015                     break;
1016                 case 6:
1017                     /* report cursor position */
1018                     sprintf(response, "\033[%d;%dR",
1019                            (s->y_base + s->y) % s->total_height + 1,
1020                             s->x + 1);
1021                     console_respond_str(s, response);
1022                     break;
1023                 }
1024                 break;
1025             case 's':
1026                 /* save cursor position */
1027                 s->x_saved = s->x;
1028                 s->y_saved = s->y;
1029                 break;
1030             case 'u':
1031                 /* restore cursor position */
1032                 s->x = s->x_saved;
1033                 s->y = s->y_saved;
1034                 break;
1035             default:
1036                 trace_console_putchar_unhandled(ch);
1037                 break;
1038             }
1039             break;
1040         }
1041     }
1042 }
1043
1044 void console_select(unsigned int index)
1045 {
1046     DisplayChangeListener *dcl;
1047     QemuConsole *s;
1048
1049     trace_console_select(index);
1050     s = qemu_console_lookup_by_index(index);
1051     if (s) {
1052         DisplayState *ds = s->ds;
1053
1054         active_console = s;
1055         if (ds->have_gfx) {
1056             QLIST_FOREACH(dcl, &ds->listeners, next) {
1057                 if (dcl->con != NULL) {
1058                     continue;
1059                 }
1060                 if (dcl->ops->dpy_gfx_switch) {
1061                     dcl->ops->dpy_gfx_switch(dcl, s->surface);
1062                 }
1063             }
1064             if (s->surface) {
1065                 dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1066                                surface_height(s->surface));
1067             }
1068         }
1069         if (ds->have_text) {
1070             dpy_text_resize(s, s->width, s->height);
1071         }
1072         text_console_update_cursor(NULL);
1073     }
1074 }
1075
1076 typedef struct VCChardev {
1077     Chardev parent;
1078     QemuConsole *console;
1079 } VCChardev;
1080
1081 #define TYPE_CHARDEV_VC "chardev-vc"
1082 #define VC_CHARDEV(obj) OBJECT_CHECK(VCChardev, (obj), TYPE_CHARDEV_VC)
1083
1084 static int vc_chr_write(Chardev *chr, const uint8_t *buf, int len)
1085 {
1086     VCChardev *drv = VC_CHARDEV(chr);
1087     QemuConsole *s = drv->console;
1088     int i;
1089
1090     if (!s->ds) {
1091         return 0;
1092     }
1093
1094     s->update_x0 = s->width * FONT_WIDTH;
1095     s->update_y0 = s->height * FONT_HEIGHT;
1096     s->update_x1 = 0;
1097     s->update_y1 = 0;
1098     console_show_cursor(s, 0);
1099     for(i = 0; i < len; i++) {
1100         console_putchar(s, buf[i]);
1101     }
1102     console_show_cursor(s, 1);
1103     if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1104         dpy_gfx_update(s, s->update_x0, s->update_y0,
1105                        s->update_x1 - s->update_x0,
1106                        s->update_y1 - s->update_y0);
1107     }
1108     return len;
1109 }
1110
1111 static void kbd_send_chars(void *opaque)
1112 {
1113     QemuConsole *s = opaque;
1114     int len;
1115     uint8_t buf[16];
1116
1117     len = qemu_chr_be_can_write(s->chr);
1118     if (len > s->out_fifo.count)
1119         len = s->out_fifo.count;
1120     if (len > 0) {
1121         if (len > sizeof(buf))
1122             len = sizeof(buf);
1123         qemu_fifo_read(&s->out_fifo, buf, len);
1124         qemu_chr_be_write(s->chr, buf, len);
1125     }
1126     /* characters are pending: we send them a bit later (XXX:
1127        horrible, should change char device API) */
1128     if (s->out_fifo.count > 0) {
1129         timer_mod(s->kbd_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1);
1130     }
1131 }
1132
1133 /* called when an ascii key is pressed */
1134 void kbd_put_keysym_console(QemuConsole *s, int keysym)
1135 {
1136     uint8_t buf[16], *q;
1137     CharBackend *be;
1138     int c;
1139
1140     if (!s || (s->console_type == GRAPHIC_CONSOLE))
1141         return;
1142
1143     switch(keysym) {
1144     case QEMU_KEY_CTRL_UP:
1145         console_scroll(s, -1);
1146         break;
1147     case QEMU_KEY_CTRL_DOWN:
1148         console_scroll(s, 1);
1149         break;
1150     case QEMU_KEY_CTRL_PAGEUP:
1151         console_scroll(s, -10);
1152         break;
1153     case QEMU_KEY_CTRL_PAGEDOWN:
1154         console_scroll(s, 10);
1155         break;
1156     default:
1157         /* convert the QEMU keysym to VT100 key string */
1158         q = buf;
1159         if (keysym >= 0xe100 && keysym <= 0xe11f) {
1160             *q++ = '\033';
1161             *q++ = '[';
1162             c = keysym - 0xe100;
1163             if (c >= 10)
1164                 *q++ = '0' + (c / 10);
1165             *q++ = '0' + (c % 10);
1166             *q++ = '~';
1167         } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1168             *q++ = '\033';
1169             *q++ = '[';
1170             *q++ = keysym & 0xff;
1171         } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1172             vc_chr_write(s->chr, (const uint8_t *) "\r", 1);
1173             *q++ = '\n';
1174         } else {
1175             *q++ = keysym;
1176         }
1177         if (s->echo) {
1178             vc_chr_write(s->chr, buf, q - buf);
1179         }
1180         be = s->chr->be;
1181         if (be && be->chr_read) {
1182             qemu_fifo_write(&s->out_fifo, buf, q - buf);
1183             kbd_send_chars(s);
1184         }
1185         break;
1186     }
1187 }
1188
1189 static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
1190     [Q_KEY_CODE_UP]     = QEMU_KEY_UP,
1191     [Q_KEY_CODE_DOWN]   = QEMU_KEY_DOWN,
1192     [Q_KEY_CODE_RIGHT]  = QEMU_KEY_RIGHT,
1193     [Q_KEY_CODE_LEFT]   = QEMU_KEY_LEFT,
1194     [Q_KEY_CODE_HOME]   = QEMU_KEY_HOME,
1195     [Q_KEY_CODE_END]    = QEMU_KEY_END,
1196     [Q_KEY_CODE_PGUP]   = QEMU_KEY_PAGEUP,
1197     [Q_KEY_CODE_PGDN]   = QEMU_KEY_PAGEDOWN,
1198     [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1199     [Q_KEY_CODE_BACKSPACE] = QEMU_KEY_BACKSPACE,
1200 };
1201
1202 static const int ctrl_qcode_to_keysym[Q_KEY_CODE__MAX] = {
1203     [Q_KEY_CODE_UP]     = QEMU_KEY_CTRL_UP,
1204     [Q_KEY_CODE_DOWN]   = QEMU_KEY_CTRL_DOWN,
1205     [Q_KEY_CODE_RIGHT]  = QEMU_KEY_CTRL_RIGHT,
1206     [Q_KEY_CODE_LEFT]   = QEMU_KEY_CTRL_LEFT,
1207     [Q_KEY_CODE_HOME]   = QEMU_KEY_CTRL_HOME,
1208     [Q_KEY_CODE_END]    = QEMU_KEY_CTRL_END,
1209     [Q_KEY_CODE_PGUP]   = QEMU_KEY_CTRL_PAGEUP,
1210     [Q_KEY_CODE_PGDN]   = QEMU_KEY_CTRL_PAGEDOWN,
1211 };
1212
1213 bool kbd_put_qcode_console(QemuConsole *s, int qcode, bool ctrl)
1214 {
1215     int keysym;
1216
1217     keysym = ctrl ? ctrl_qcode_to_keysym[qcode] : qcode_to_keysym[qcode];
1218     if (keysym == 0) {
1219         return false;
1220     }
1221     kbd_put_keysym_console(s, keysym);
1222     return true;
1223 }
1224
1225 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1226 {
1227     int i;
1228
1229     for (i = 0; i < len && str[i]; i++) {
1230         kbd_put_keysym_console(s, str[i]);
1231     }
1232 }
1233
1234 void kbd_put_keysym(int keysym)
1235 {
1236     kbd_put_keysym_console(active_console, keysym);
1237 }
1238
1239 static void text_console_invalidate(void *opaque)
1240 {
1241     QemuConsole *s = (QemuConsole *) opaque;
1242
1243     if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1244         text_console_resize(s);
1245     }
1246     console_refresh(s);
1247 }
1248
1249 static void text_console_update(void *opaque, console_ch_t *chardata)
1250 {
1251     QemuConsole *s = (QemuConsole *) opaque;
1252     int i, j, src;
1253
1254     if (s->text_x[0] <= s->text_x[1]) {
1255         src = (s->y_base + s->text_y[0]) * s->width;
1256         chardata += s->text_y[0] * s->width;
1257         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1258             for (j = 0; j < s->width; j++, src++) {
1259                 console_write_ch(chardata ++,
1260                                  ATTR2CHTYPE(s->cells[src].ch,
1261                                              s->cells[src].t_attrib.fgcol,
1262                                              s->cells[src].t_attrib.bgcol,
1263                                              s->cells[src].t_attrib.bold));
1264             }
1265         dpy_text_update(s, s->text_x[0], s->text_y[0],
1266                         s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1267         s->text_x[0] = s->width;
1268         s->text_y[0] = s->height;
1269         s->text_x[1] = 0;
1270         s->text_y[1] = 0;
1271     }
1272     if (s->cursor_invalidate) {
1273         dpy_text_cursor(s, s->x, s->y);
1274         s->cursor_invalidate = 0;
1275     }
1276 }
1277
1278 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1279                                 uint32_t head)
1280 {
1281     Object *obj;
1282     QemuConsole *s;
1283     int i;
1284
1285     obj = object_new(TYPE_QEMU_CONSOLE);
1286     s = QEMU_CONSOLE(obj);
1287     s->head = head;
1288     object_property_add_link(obj, "device", TYPE_DEVICE,
1289                              (Object **)&s->device,
1290                              object_property_allow_set_link,
1291                              OBJ_PROP_LINK_STRONG,
1292                              &error_abort);
1293     object_property_add_uint32_ptr(obj, "head",
1294                                    &s->head, &error_abort);
1295
1296     if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1297         (console_type == GRAPHIC_CONSOLE))) {
1298         active_console = s;
1299     }
1300     s->ds = ds;
1301     s->console_type = console_type;
1302
1303     if (QTAILQ_EMPTY(&consoles)) {
1304         s->index = 0;
1305         QTAILQ_INSERT_TAIL(&consoles, s, next);
1306     } else if (console_type != GRAPHIC_CONSOLE || qdev_hotplug) {
1307         QemuConsole *last = QTAILQ_LAST(&consoles);
1308         s->index = last->index + 1;
1309         QTAILQ_INSERT_TAIL(&consoles, s, next);
1310     } else {
1311         /*
1312          * HACK: Put graphical consoles before text consoles.
1313          *
1314          * Only do that for coldplugged devices.  After initial device
1315          * initialization we will not renumber the consoles any more.
1316          */
1317         QemuConsole *c = QTAILQ_FIRST(&consoles);
1318
1319         while (QTAILQ_NEXT(c, next) != NULL &&
1320                c->console_type == GRAPHIC_CONSOLE) {
1321             c = QTAILQ_NEXT(c, next);
1322         }
1323         if (c->console_type == GRAPHIC_CONSOLE) {
1324             /* have no text consoles */
1325             s->index = c->index + 1;
1326             QTAILQ_INSERT_AFTER(&consoles, c, s, next);
1327         } else {
1328             s->index = c->index;
1329             QTAILQ_INSERT_BEFORE(c, s, next);
1330             /* renumber text consoles */
1331             for (i = s->index + 1; c != NULL; c = QTAILQ_NEXT(c, next), i++) {
1332                 c->index = i;
1333             }
1334         }
1335     }
1336     return s;
1337 }
1338
1339 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1340 {
1341     qemu_pixman_image_unref(surface->image);
1342     surface->image = NULL;
1343
1344     surface->format = PIXMAN_x8r8g8b8;
1345     surface->image = pixman_image_create_bits(surface->format,
1346                                               width, height,
1347                                               NULL, width * 4);
1348     assert(surface->image != NULL);
1349
1350     surface->flags = QEMU_ALLOCATED_FLAG;
1351 }
1352
1353 DisplaySurface *qemu_create_displaysurface(int width, int height)
1354 {
1355     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1356
1357     trace_displaysurface_create(surface, width, height);
1358     qemu_alloc_display(surface, width, height);
1359     return surface;
1360 }
1361
1362 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1363                                                 pixman_format_code_t format,
1364                                                 int linesize, uint8_t *data)
1365 {
1366     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1367
1368     trace_displaysurface_create_from(surface, width, height, format);
1369     surface->format = format;
1370     surface->image = pixman_image_create_bits(surface->format,
1371                                               width, height,
1372                                               (void *)data, linesize);
1373     assert(surface->image != NULL);
1374
1375     return surface;
1376 }
1377
1378 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
1379 {
1380     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1381
1382     trace_displaysurface_create_pixman(surface);
1383     surface->format = pixman_image_get_format(image);
1384     surface->image = pixman_image_ref(image);
1385
1386     return surface;
1387 }
1388
1389 DisplaySurface *qemu_create_message_surface(int w, int h,
1390                                             const char *msg)
1391 {
1392     DisplaySurface *surface = qemu_create_displaysurface(w, h);
1393     pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
1394     pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
1395     pixman_image_t *glyph;
1396     int len, x, y, i;
1397
1398     len = strlen(msg);
1399     x = (w / FONT_WIDTH  - len) / 2;
1400     y = (h / FONT_HEIGHT - 1)   / 2;
1401     for (i = 0; i < len; i++) {
1402         glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1403         qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1404                                  x+i, y, FONT_WIDTH, FONT_HEIGHT);
1405         qemu_pixman_image_unref(glyph);
1406     }
1407     return surface;
1408 }
1409
1410 void qemu_free_displaysurface(DisplaySurface *surface)
1411 {
1412     if (surface == NULL) {
1413         return;
1414     }
1415     trace_displaysurface_free(surface);
1416     qemu_pixman_image_unref(surface->image);
1417     g_free(surface);
1418 }
1419
1420 bool console_has_gl(QemuConsole *con)
1421 {
1422     return con->gl != NULL;
1423 }
1424
1425 bool console_has_gl_dmabuf(QemuConsole *con)
1426 {
1427     return con->gl != NULL && con->gl->ops->dpy_gl_scanout_dmabuf != NULL;
1428 }
1429
1430 void register_displaychangelistener(DisplayChangeListener *dcl)
1431 {
1432     static const char nodev[] =
1433         "This VM has no graphic display device.";
1434     static DisplaySurface *dummy;
1435     QemuConsole *con;
1436
1437     assert(!dcl->ds);
1438
1439     if (dcl->ops->dpy_gl_ctx_create) {
1440         /* display has opengl support */
1441         assert(dcl->con);
1442         if (dcl->con->gl) {
1443             fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1444                     dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1445             exit(1);
1446         }
1447         dcl->con->gl = dcl;
1448     }
1449
1450     trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1451     dcl->ds = get_alloc_displaystate();
1452     QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1453     gui_setup_refresh(dcl->ds);
1454     if (dcl->con) {
1455         dcl->con->dcls++;
1456         con = dcl->con;
1457     } else {
1458         con = active_console;
1459     }
1460     if (dcl->ops->dpy_gfx_switch) {
1461         if (con) {
1462             dcl->ops->dpy_gfx_switch(dcl, con->surface);
1463         } else {
1464             if (!dummy) {
1465                 dummy = qemu_create_message_surface(640, 480, nodev);
1466             }
1467             dcl->ops->dpy_gfx_switch(dcl, dummy);
1468         }
1469     }
1470     text_console_update_cursor(NULL);
1471 }
1472
1473 void update_displaychangelistener(DisplayChangeListener *dcl,
1474                                   uint64_t interval)
1475 {
1476     DisplayState *ds = dcl->ds;
1477
1478     dcl->update_interval = interval;
1479     if (!ds->refreshing && ds->update_interval > interval) {
1480         timer_mod(ds->gui_timer, ds->last_update + interval);
1481     }
1482 }
1483
1484 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1485 {
1486     DisplayState *ds = dcl->ds;
1487     trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1488     if (dcl->con) {
1489         dcl->con->dcls--;
1490     }
1491     QLIST_REMOVE(dcl, next);
1492     dcl->ds = NULL;
1493     gui_setup_refresh(ds);
1494 }
1495
1496 static void dpy_set_ui_info_timer(void *opaque)
1497 {
1498     QemuConsole *con = opaque;
1499
1500     con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1501 }
1502
1503 bool dpy_ui_info_supported(QemuConsole *con)
1504 {
1505     return con->hw_ops->ui_info != NULL;
1506 }
1507
1508 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1509 {
1510     assert(con != NULL);
1511
1512     if (!dpy_ui_info_supported(con)) {
1513         return -1;
1514     }
1515     if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
1516         /* nothing changed -- ignore */
1517         return 0;
1518     }
1519
1520     /*
1521      * Typically we get a flood of these as the user resizes the window.
1522      * Wait until the dust has settled (one second without updates), then
1523      * go notify the guest.
1524      */
1525     con->ui_info = *info;
1526     timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1527     return 0;
1528 }
1529
1530 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1531 {
1532     DisplayState *s = con->ds;
1533     DisplayChangeListener *dcl;
1534     int width = w;
1535     int height = h;
1536
1537     if (con->surface) {
1538         width = surface_width(con->surface);
1539         height = surface_height(con->surface);
1540     }
1541     x = MAX(x, 0);
1542     y = MAX(y, 0);
1543     x = MIN(x, width);
1544     y = MIN(y, height);
1545     w = MIN(w, width - x);
1546     h = MIN(h, height - y);
1547
1548     if (!qemu_console_is_visible(con)) {
1549         return;
1550     }
1551     QLIST_FOREACH(dcl, &s->listeners, next) {
1552         if (con != (dcl->con ? dcl->con : active_console)) {
1553             continue;
1554         }
1555         if (dcl->ops->dpy_gfx_update) {
1556             dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1557         }
1558     }
1559 }
1560
1561 void dpy_gfx_update_full(QemuConsole *con)
1562 {
1563     if (!con->surface) {
1564         return;
1565     }
1566     dpy_gfx_update(con, 0, 0,
1567                    surface_width(con->surface),
1568                    surface_height(con->surface));
1569 }
1570
1571 void dpy_gfx_replace_surface(QemuConsole *con,
1572                              DisplaySurface *surface)
1573 {
1574     DisplayState *s = con->ds;
1575     DisplaySurface *old_surface = con->surface;
1576     DisplayChangeListener *dcl;
1577
1578     assert(old_surface != surface || surface == NULL);
1579
1580     con->surface = surface;
1581     QLIST_FOREACH(dcl, &s->listeners, next) {
1582         if (con != (dcl->con ? dcl->con : active_console)) {
1583             continue;
1584         }
1585         if (dcl->ops->dpy_gfx_switch) {
1586             dcl->ops->dpy_gfx_switch(dcl, surface);
1587         }
1588     }
1589     qemu_free_displaysurface(old_surface);
1590 }
1591
1592 bool dpy_gfx_check_format(QemuConsole *con,
1593                           pixman_format_code_t format)
1594 {
1595     DisplayChangeListener *dcl;
1596     DisplayState *s = con->ds;
1597
1598     QLIST_FOREACH(dcl, &s->listeners, next) {
1599         if (dcl->con && dcl->con != con) {
1600             /* dcl bound to another console -> skip */
1601             continue;
1602         }
1603         if (dcl->ops->dpy_gfx_check_format) {
1604             if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1605                 return false;
1606             }
1607         } else {
1608             /* default is to whitelist native 32 bpp only */
1609             if (format != qemu_default_pixman_format(32, true)) {
1610                 return false;
1611             }
1612         }
1613     }
1614     return true;
1615 }
1616
1617 static void dpy_refresh(DisplayState *s)
1618 {
1619     DisplayChangeListener *dcl;
1620
1621     QLIST_FOREACH(dcl, &s->listeners, next) {
1622         if (dcl->ops->dpy_refresh) {
1623             dcl->ops->dpy_refresh(dcl);
1624         }
1625     }
1626 }
1627
1628 void dpy_text_cursor(QemuConsole *con, int x, int y)
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_cursor) {
1641             dcl->ops->dpy_text_cursor(dcl, x, y);
1642         }
1643     }
1644 }
1645
1646 void dpy_text_update(QemuConsole *con, int x, int y, 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_update) {
1659             dcl->ops->dpy_text_update(dcl, x, y, w, h);
1660         }
1661     }
1662 }
1663
1664 void dpy_text_resize(QemuConsole *con, int w, int h)
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_text_resize) {
1677             dcl->ops->dpy_text_resize(dcl, w, h);
1678         }
1679     }
1680 }
1681
1682 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
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_mouse_set) {
1695             dcl->ops->dpy_mouse_set(dcl, x, y, on);
1696         }
1697     }
1698 }
1699
1700 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1701 {
1702     DisplayState *s = con->ds;
1703     DisplayChangeListener *dcl;
1704
1705     if (!qemu_console_is_visible(con)) {
1706         return;
1707     }
1708     QLIST_FOREACH(dcl, &s->listeners, next) {
1709         if (con != (dcl->con ? dcl->con : active_console)) {
1710             continue;
1711         }
1712         if (dcl->ops->dpy_cursor_define) {
1713             dcl->ops->dpy_cursor_define(dcl, cursor);
1714         }
1715     }
1716 }
1717
1718 bool dpy_cursor_define_supported(QemuConsole *con)
1719 {
1720     DisplayState *s = con->ds;
1721     DisplayChangeListener *dcl;
1722
1723     QLIST_FOREACH(dcl, &s->listeners, next) {
1724         if (dcl->ops->dpy_cursor_define) {
1725             return true;
1726         }
1727     }
1728     return false;
1729 }
1730
1731 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1732                                 struct QEMUGLParams *qparams)
1733 {
1734     assert(con->gl);
1735     return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1736 }
1737
1738 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1739 {
1740     assert(con->gl);
1741     con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1742 }
1743
1744 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1745 {
1746     assert(con->gl);
1747     return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1748 }
1749
1750 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1751 {
1752     assert(con->gl);
1753     return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1754 }
1755
1756 void dpy_gl_scanout_disable(QemuConsole *con)
1757 {
1758     assert(con->gl);
1759     if (con->gl->ops->dpy_gl_scanout_disable) {
1760         con->gl->ops->dpy_gl_scanout_disable(con->gl);
1761     } else {
1762         con->gl->ops->dpy_gl_scanout_texture(con->gl, 0, false, 0, 0,
1763                                              0, 0, 0, 0);
1764     }
1765 }
1766
1767 void dpy_gl_scanout_texture(QemuConsole *con,
1768                             uint32_t backing_id,
1769                             bool backing_y_0_top,
1770                             uint32_t backing_width,
1771                             uint32_t backing_height,
1772                             uint32_t x, uint32_t y,
1773                             uint32_t width, uint32_t height)
1774 {
1775     assert(con->gl);
1776     con->gl->ops->dpy_gl_scanout_texture(con->gl, backing_id,
1777                                          backing_y_0_top,
1778                                          backing_width, backing_height,
1779                                          x, y, width, height);
1780 }
1781
1782 void dpy_gl_scanout_dmabuf(QemuConsole *con,
1783                            QemuDmaBuf *dmabuf)
1784 {
1785     assert(con->gl);
1786     con->gl->ops->dpy_gl_scanout_dmabuf(con->gl, dmabuf);
1787 }
1788
1789 void dpy_gl_cursor_dmabuf(QemuConsole *con, QemuDmaBuf *dmabuf,
1790                           bool have_hot, uint32_t hot_x, uint32_t hot_y)
1791 {
1792     assert(con->gl);
1793
1794     if (con->gl->ops->dpy_gl_cursor_dmabuf) {
1795         con->gl->ops->dpy_gl_cursor_dmabuf(con->gl, dmabuf,
1796                                            have_hot, hot_x, hot_y);
1797     }
1798 }
1799
1800 void dpy_gl_cursor_position(QemuConsole *con,
1801                             uint32_t pos_x, uint32_t pos_y)
1802 {
1803     assert(con->gl);
1804
1805     if (con->gl->ops->dpy_gl_cursor_position) {
1806         con->gl->ops->dpy_gl_cursor_position(con->gl, pos_x, pos_y);
1807     }
1808 }
1809
1810 void dpy_gl_release_dmabuf(QemuConsole *con,
1811                           QemuDmaBuf *dmabuf)
1812 {
1813     assert(con->gl);
1814
1815     if (con->gl->ops->dpy_gl_release_dmabuf) {
1816         con->gl->ops->dpy_gl_release_dmabuf(con->gl, dmabuf);
1817     }
1818 }
1819
1820 void dpy_gl_update(QemuConsole *con,
1821                    uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1822 {
1823     assert(con->gl);
1824     con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1825 }
1826
1827 /***********************************************************/
1828 /* register display */
1829
1830 /* console.c internal use only */
1831 static DisplayState *get_alloc_displaystate(void)
1832 {
1833     if (!display_state) {
1834         display_state = g_new0(DisplayState, 1);
1835         cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1836                                     text_console_update_cursor, NULL);
1837     }
1838     return display_state;
1839 }
1840
1841 /*
1842  * Called by main(), after creating QemuConsoles
1843  * and before initializing ui (sdl/vnc/...).
1844  */
1845 DisplayState *init_displaystate(void)
1846 {
1847     gchar *name;
1848     QemuConsole *con;
1849
1850     get_alloc_displaystate();
1851     QTAILQ_FOREACH(con, &consoles, next) {
1852         if (con->console_type != GRAPHIC_CONSOLE &&
1853             con->ds == NULL) {
1854             text_console_do_init(con->chr, display_state);
1855         }
1856
1857         /* Hook up into the qom tree here (not in new_console()), once
1858          * all QemuConsoles are created and the order / numbering
1859          * doesn't change any more */
1860         name = g_strdup_printf("console[%d]", con->index);
1861         object_property_add_child(container_get(object_get_root(), "/backend"),
1862                                   name, OBJECT(con), &error_abort);
1863         g_free(name);
1864     }
1865
1866     return display_state;
1867 }
1868
1869 void graphic_console_set_hwops(QemuConsole *con,
1870                                const GraphicHwOps *hw_ops,
1871                                void *opaque)
1872 {
1873     con->hw_ops = hw_ops;
1874     con->hw = opaque;
1875 }
1876
1877 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1878                                   const GraphicHwOps *hw_ops,
1879                                   void *opaque)
1880 {
1881     static const char noinit[] =
1882         "Guest has not initialized the display (yet).";
1883     int width = 640;
1884     int height = 480;
1885     QemuConsole *s;
1886     DisplayState *ds;
1887     DisplaySurface *surface;
1888
1889     ds = get_alloc_displaystate();
1890     s = qemu_console_lookup_unused();
1891     if (s) {
1892         trace_console_gfx_reuse(s->index);
1893         if (s->surface) {
1894             width = surface_width(s->surface);
1895             height = surface_height(s->surface);
1896         }
1897     } else {
1898         trace_console_gfx_new();
1899         s = new_console(ds, GRAPHIC_CONSOLE, head);
1900         s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1901                                    dpy_set_ui_info_timer, s);
1902     }
1903     graphic_console_set_hwops(s, hw_ops, opaque);
1904     if (dev) {
1905         object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1906                                  &error_abort);
1907     }
1908
1909     surface = qemu_create_message_surface(width, height, noinit);
1910     dpy_gfx_replace_surface(s, surface);
1911     return s;
1912 }
1913
1914 static const GraphicHwOps unused_ops = {
1915     /* no callbacks */
1916 };
1917
1918 void graphic_console_close(QemuConsole *con)
1919 {
1920     static const char unplugged[] =
1921         "Guest display has been unplugged";
1922     DisplaySurface *surface;
1923     int width = 640;
1924     int height = 480;
1925
1926     if (con->surface) {
1927         width = surface_width(con->surface);
1928         height = surface_height(con->surface);
1929     }
1930
1931     trace_console_gfx_close(con->index);
1932     object_property_set_link(OBJECT(con), NULL, "device", &error_abort);
1933     graphic_console_set_hwops(con, &unused_ops, NULL);
1934
1935     if (con->gl) {
1936         dpy_gl_scanout_disable(con);
1937     }
1938     surface = qemu_create_message_surface(width, height, unplugged);
1939     dpy_gfx_replace_surface(con, surface);
1940 }
1941
1942 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1943 {
1944     QemuConsole *con;
1945
1946     QTAILQ_FOREACH(con, &consoles, next) {
1947         if (con->index == index) {
1948             return con;
1949         }
1950     }
1951     return NULL;
1952 }
1953
1954 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1955 {
1956     QemuConsole *con;
1957     Object *obj;
1958     uint32_t h;
1959
1960     QTAILQ_FOREACH(con, &consoles, next) {
1961         obj = object_property_get_link(OBJECT(con),
1962                                        "device", &error_abort);
1963         if (DEVICE(obj) != dev) {
1964             continue;
1965         }
1966         h = object_property_get_uint(OBJECT(con),
1967                                      "head", &error_abort);
1968         if (h != head) {
1969             continue;
1970         }
1971         return con;
1972     }
1973     return NULL;
1974 }
1975
1976 QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
1977                                                 uint32_t head, Error **errp)
1978 {
1979     DeviceState *dev;
1980     QemuConsole *con;
1981
1982     dev = qdev_find_recursive(sysbus_get_default(), device_id);
1983     if (dev == NULL) {
1984         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1985                   "Device '%s' not found", device_id);
1986         return NULL;
1987     }
1988
1989     con = qemu_console_lookup_by_device(dev, head);
1990     if (con == NULL) {
1991         error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
1992                    device_id, head);
1993         return NULL;
1994     }
1995
1996     return con;
1997 }
1998
1999 QemuConsole *qemu_console_lookup_unused(void)
2000 {
2001     QemuConsole *con;
2002     Object *obj;
2003
2004     QTAILQ_FOREACH(con, &consoles, next) {
2005         if (con->hw_ops != &unused_ops) {
2006             continue;
2007         }
2008         obj = object_property_get_link(OBJECT(con),
2009                                        "device", &error_abort);
2010         if (obj != NULL) {
2011             continue;
2012         }
2013         return con;
2014     }
2015     return NULL;
2016 }
2017
2018 bool qemu_console_is_visible(QemuConsole *con)
2019 {
2020     return (con == active_console) || (con->dcls > 0);
2021 }
2022
2023 bool qemu_console_is_graphic(QemuConsole *con)
2024 {
2025     if (con == NULL) {
2026         con = active_console;
2027     }
2028     return con && (con->console_type == GRAPHIC_CONSOLE);
2029 }
2030
2031 bool qemu_console_is_fixedsize(QemuConsole *con)
2032 {
2033     if (con == NULL) {
2034         con = active_console;
2035     }
2036     return con && (con->console_type != TEXT_CONSOLE);
2037 }
2038
2039 bool qemu_console_is_gl_blocked(QemuConsole *con)
2040 {
2041     assert(con != NULL);
2042     return con->gl_block;
2043 }
2044
2045 char *qemu_console_get_label(QemuConsole *con)
2046 {
2047     if (con->console_type == GRAPHIC_CONSOLE) {
2048         if (con->device) {
2049             return g_strdup(object_get_typename(con->device));
2050         }
2051         return g_strdup("VGA");
2052     } else {
2053         if (con->chr && con->chr->label) {
2054             return g_strdup(con->chr->label);
2055         }
2056         return g_strdup_printf("vc%d", con->index);
2057     }
2058 }
2059
2060 int qemu_console_get_index(QemuConsole *con)
2061 {
2062     if (con == NULL) {
2063         con = active_console;
2064     }
2065     return con ? con->index : -1;
2066 }
2067
2068 uint32_t qemu_console_get_head(QemuConsole *con)
2069 {
2070     if (con == NULL) {
2071         con = active_console;
2072     }
2073     return con ? con->head : -1;
2074 }
2075
2076 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
2077 {
2078     assert(con != NULL);
2079     return &con->ui_info;
2080 }
2081
2082 int qemu_console_get_width(QemuConsole *con, int fallback)
2083 {
2084     if (con == NULL) {
2085         con = active_console;
2086     }
2087     return con ? surface_width(con->surface) : fallback;
2088 }
2089
2090 int qemu_console_get_height(QemuConsole *con, int fallback)
2091 {
2092     if (con == NULL) {
2093         con = active_console;
2094     }
2095     return con ? surface_height(con->surface) : fallback;
2096 }
2097
2098 static void vc_chr_set_echo(Chardev *chr, bool echo)
2099 {
2100     VCChardev *drv = VC_CHARDEV(chr);
2101     QemuConsole *s = drv->console;
2102
2103     s->echo = echo;
2104 }
2105
2106 static void text_console_update_cursor_timer(void)
2107 {
2108     timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
2109               + CONSOLE_CURSOR_PERIOD / 2);
2110 }
2111
2112 static void text_console_update_cursor(void *opaque)
2113 {
2114     QemuConsole *s;
2115     int count = 0;
2116
2117     cursor_visible_phase = !cursor_visible_phase;
2118
2119     QTAILQ_FOREACH(s, &consoles, next) {
2120         if (qemu_console_is_graphic(s) ||
2121             !qemu_console_is_visible(s)) {
2122             continue;
2123         }
2124         count++;
2125         graphic_hw_invalidate(s);
2126     }
2127
2128     if (count) {
2129         text_console_update_cursor_timer();
2130     }
2131 }
2132
2133 static const GraphicHwOps text_console_ops = {
2134     .invalidate  = text_console_invalidate,
2135     .text_update = text_console_update,
2136 };
2137
2138 static void text_console_do_init(Chardev *chr, DisplayState *ds)
2139 {
2140     VCChardev *drv = VC_CHARDEV(chr);
2141     QemuConsole *s = drv->console;
2142     int g_width = 80 * FONT_WIDTH;
2143     int g_height = 24 * FONT_HEIGHT;
2144
2145     s->out_fifo.buf = s->out_fifo_buf;
2146     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
2147     s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
2148     s->ds = ds;
2149
2150     s->y_displayed = 0;
2151     s->y_base = 0;
2152     s->total_height = DEFAULT_BACKSCROLL;
2153     s->x = 0;
2154     s->y = 0;
2155     if (!s->surface) {
2156         if (active_console && active_console->surface) {
2157             g_width = surface_width(active_console->surface);
2158             g_height = surface_height(active_console->surface);
2159         }
2160         s->surface = qemu_create_displaysurface(g_width, g_height);
2161     }
2162
2163     s->hw_ops = &text_console_ops;
2164     s->hw = s;
2165
2166     /* Set text attribute defaults */
2167     s->t_attrib_default.bold = 0;
2168     s->t_attrib_default.uline = 0;
2169     s->t_attrib_default.blink = 0;
2170     s->t_attrib_default.invers = 0;
2171     s->t_attrib_default.unvisible = 0;
2172     s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
2173     s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
2174     /* set current text attributes to default */
2175     s->t_attrib = s->t_attrib_default;
2176     text_console_resize(s);
2177
2178     if (chr->label) {
2179         char msg[128];
2180         int len;
2181
2182         s->t_attrib.bgcol = QEMU_COLOR_BLUE;
2183         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
2184         vc_chr_write(chr, (uint8_t *)msg, len);
2185         s->t_attrib = s->t_attrib_default;
2186     }
2187
2188     qemu_chr_be_event(chr, CHR_EVENT_OPENED);
2189 }
2190
2191 static void vc_chr_open(Chardev *chr,
2192                         ChardevBackend *backend,
2193                         bool *be_opened,
2194                         Error **errp)
2195 {
2196     ChardevVC *vc = backend->u.vc.data;
2197     VCChardev *drv = VC_CHARDEV(chr);
2198     QemuConsole *s;
2199     unsigned width = 0;
2200     unsigned height = 0;
2201
2202     if (vc->has_width) {
2203         width = vc->width;
2204     } else if (vc->has_cols) {
2205         width = vc->cols * FONT_WIDTH;
2206     }
2207
2208     if (vc->has_height) {
2209         height = vc->height;
2210     } else if (vc->has_rows) {
2211         height = vc->rows * FONT_HEIGHT;
2212     }
2213
2214     trace_console_txt_new(width, height);
2215     if (width == 0 || height == 0) {
2216         s = new_console(NULL, TEXT_CONSOLE, 0);
2217     } else {
2218         s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
2219         s->surface = qemu_create_displaysurface(width, height);
2220     }
2221
2222     if (!s) {
2223         error_setg(errp, "cannot create text console");
2224         return;
2225     }
2226
2227     s->chr = chr;
2228     drv->console = s;
2229
2230     if (display_state) {
2231         text_console_do_init(chr, display_state);
2232     }
2233
2234     /* console/chardev init sometimes completes elsewhere in a 2nd
2235      * stage, so defer OPENED events until they are fully initialized
2236      */
2237     *be_opened = false;
2238 }
2239
2240 void qemu_console_resize(QemuConsole *s, int width, int height)
2241 {
2242     DisplaySurface *surface;
2243
2244     assert(s->console_type == GRAPHIC_CONSOLE);
2245
2246     if (s->surface && (s->surface->flags & QEMU_ALLOCATED_FLAG) &&
2247         pixman_image_get_width(s->surface->image) == width &&
2248         pixman_image_get_height(s->surface->image) == height) {
2249         return;
2250     }
2251
2252     surface = qemu_create_displaysurface(width, height);
2253     dpy_gfx_replace_surface(s, surface);
2254 }
2255
2256 DisplaySurface *qemu_console_surface(QemuConsole *console)
2257 {
2258     return console->surface;
2259 }
2260
2261 PixelFormat qemu_default_pixelformat(int bpp)
2262 {
2263     pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2264     PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2265     return pf;
2266 }
2267
2268 static QemuDisplay *dpys[DISPLAY_TYPE__MAX];
2269
2270 void qemu_display_register(QemuDisplay *ui)
2271 {
2272     assert(ui->type < DISPLAY_TYPE__MAX);
2273     dpys[ui->type] = ui;
2274 }
2275
2276 bool qemu_display_find_default(DisplayOptions *opts)
2277 {
2278     static DisplayType prio[] = {
2279         DISPLAY_TYPE_GTK,
2280         DISPLAY_TYPE_SDL,
2281         DISPLAY_TYPE_COCOA
2282     };
2283     int i;
2284
2285     for (i = 0; i < ARRAY_SIZE(prio); i++) {
2286         if (dpys[prio[i]] == NULL) {
2287             ui_module_load_one(DisplayType_str(prio[i]));
2288         }
2289         if (dpys[prio[i]] == NULL) {
2290             continue;
2291         }
2292         opts->type = prio[i];
2293         return true;
2294     }
2295     return false;
2296 }
2297
2298 void qemu_display_early_init(DisplayOptions *opts)
2299 {
2300     assert(opts->type < DISPLAY_TYPE__MAX);
2301     if (opts->type == DISPLAY_TYPE_NONE) {
2302         return;
2303     }
2304     if (dpys[opts->type] == NULL) {
2305         ui_module_load_one(DisplayType_str(opts->type));
2306     }
2307     if (dpys[opts->type] == NULL) {
2308         error_report("Display '%s' is not available.",
2309                      DisplayType_str(opts->type));
2310         exit(1);
2311     }
2312     if (dpys[opts->type]->early_init) {
2313         dpys[opts->type]->early_init(opts);
2314     }
2315 }
2316
2317 void qemu_display_init(DisplayState *ds, DisplayOptions *opts)
2318 {
2319     assert(opts->type < DISPLAY_TYPE__MAX);
2320     if (opts->type == DISPLAY_TYPE_NONE) {
2321         return;
2322     }
2323     assert(dpys[opts->type] != NULL);
2324     dpys[opts->type]->init(ds, opts);
2325 }
2326
2327 void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp)
2328 {
2329     int val;
2330     ChardevVC *vc;
2331
2332     backend->type = CHARDEV_BACKEND_KIND_VC;
2333     vc = backend->u.vc.data = g_new0(ChardevVC, 1);
2334     qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
2335
2336     val = qemu_opt_get_number(opts, "width", 0);
2337     if (val != 0) {
2338         vc->has_width = true;
2339         vc->width = val;
2340     }
2341
2342     val = qemu_opt_get_number(opts, "height", 0);
2343     if (val != 0) {
2344         vc->has_height = true;
2345         vc->height = val;
2346     }
2347
2348     val = qemu_opt_get_number(opts, "cols", 0);
2349     if (val != 0) {
2350         vc->has_cols = true;
2351         vc->cols = val;
2352     }
2353
2354     val = qemu_opt_get_number(opts, "rows", 0);
2355     if (val != 0) {
2356         vc->has_rows = true;
2357         vc->rows = val;
2358     }
2359 }
2360
2361 static const TypeInfo qemu_console_info = {
2362     .name = TYPE_QEMU_CONSOLE,
2363     .parent = TYPE_OBJECT,
2364     .instance_size = sizeof(QemuConsole),
2365     .class_size = sizeof(QemuConsoleClass),
2366 };
2367
2368 static void char_vc_class_init(ObjectClass *oc, void *data)
2369 {
2370     ChardevClass *cc = CHARDEV_CLASS(oc);
2371
2372     cc->parse = qemu_chr_parse_vc;
2373     cc->open = vc_chr_open;
2374     cc->chr_write = vc_chr_write;
2375     cc->chr_set_echo = vc_chr_set_echo;
2376 }
2377
2378 static const TypeInfo char_vc_type_info = {
2379     .name = TYPE_CHARDEV_VC,
2380     .parent = TYPE_CHARDEV,
2381     .instance_size = sizeof(VCChardev),
2382     .class_init = char_vc_class_init,
2383 };
2384
2385 void qemu_console_early_init(void)
2386 {
2387     /* set the default vc driver */
2388     if (!object_class_by_name(TYPE_CHARDEV_VC)) {
2389         type_register(&char_vc_type_info);
2390     }
2391 }
2392
2393 static void register_types(void)
2394 {
2395     type_register_static(&qemu_console_info);
2396 }
2397
2398 type_init(register_types);