screen.c

   1 /*
   2
   3      Copyright (C) 2013 Proxmox Server Solutions GmbH
   4
   5      Copyright: spiceterm is under GNU GPL, the GNU General Public License.
   6
   7      This program is free software; you can redistribute it and/or modify
   8      it under the terms of the GNU General Public License as published by
   9      the Free Software Foundation; version 2 dated June, 1991.
  10
  11      This program is distributed in the hope that it will be useful,
  12      but WITHOUT ANY WARRANTY; without even the implied warranty of
  13      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14      GNU General Public License for more details.
  15
  16      You should have received a copy of the GNU General Public License
  17      along with this program; if not, write to the Free Software
  18      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19      02111-1307, USA.
  20
  21      Author: Dietmar Maurer <dietmar@proxmox.com>
  22
  23      Note: qlx drawing code is copied from spice-server test code.
  24
  25 */
  26
  27 #include <stdlib.h>
  28 #include <math.h>
  29 #include <string.h>
  30 #include <stdio.h>
  31 #include <unistd.h>
  32 #include <signal.h>
  33 #include <wait.h>
  34 #include <sys/select.h>
  35 #include <sys/types.h>
  36 #include <getopt.h>
  37
  38 #include <spice.h>
  39 #include <spice/enums.h>
  40 #include <spice/macros.h>
  41 #include <spice/qxl_dev.h>
  42
  43 #include "glyphs.h"
  44
  45 #include "spiceterm.h"
  46
  47 static int debug = 0;
  48
  49 #define DPRINTF(x, format, ...) { \
  50     if (x <= debug) { \
  51         printf("%s: " format "\n" , __FUNCTION__, ## __VA_ARGS__); \
  52     } \
  53 }
  54
  55 #define MEM_SLOT_GROUP_ID 0
  56
  57 #define NOTIFY_DISPLAY_BATCH (SINGLE_PART/2)
  58 #define NOTIFY_CURSOR_BATCH 10
  59
  60 /* these colours are from linux kernel drivers/char/vt.c */
  61 /* the default colour table, for VGA+ colour systems */
  62 int default_red[] = {0x00,0xaa,0x00,0xaa,0x00,0xaa,0x00,0xaa,
  63     0x55,0xff,0x55,0xff,0x55,0xff,0x55,0xff};
  64 int default_grn[] = {0x00,0x00,0xaa,0x55,0x00,0x00,0xaa,0xaa,
  65     0x55,0x55,0xff,0xff,0x55,0x55,0xff,0xff};
  66 int default_blu[] = {0x00,0x00,0x00,0x00,0xaa,0xaa,0xaa,0xaa,
  67     0x55,0x55,0x55,0x55,0xff,0xff,0xff,0xff};
  68
  69 /* Parts cribbed from spice-display.h/.c/qxl.c */
  70
  71 typedef struct SimpleSpiceUpdate {
  72     QXLCommandExt ext; // first
  73     QXLDrawable drawable;
  74     QXLImage image;
  75     uint8_t *bitmap;
  76 } SimpleSpiceUpdate;
  77
  78 static void
  79 spice_screen_destroy_update(SimpleSpiceUpdate *update)
  80 {
  81     if (!update) {
  82         return;
  83     }
  84     if (update->drawable.clip.type != SPICE_CLIP_TYPE_NONE) {
  85         uint8_t *ptr = (uint8_t*)update->drawable.clip.data;
  86         free(ptr);
  87     }
  88     g_free(update->bitmap);
  89     g_free(update);
  90 }
  91
  92 #define DEFAULT_WIDTH 640
  93 #define DEFAULT_HEIGHT 320
  94
  95 static int unique = 0x0ffff + 1;
  96
  97 static void
  98 set_cmd(QXLCommandExt *ext, uint32_t type, QXLPHYSICAL data)
  99 {
 100     ext->cmd.type = type;
 101     ext->cmd.data = data;
 102     ext->cmd.padding = 0;
 103     ext->group_id = MEM_SLOT_GROUP_ID;
 104     ext->flags = 0;
 105 }
 106
 107 static void
 108 simple_set_release_info(QXLReleaseInfo *info, intptr_t ptr)
 109 {
 110     info->id = ptr;
 111     //info->group_id = MEM_SLOT_GROUP_ID;
 112 }
 113
 114 /* Note: push_command/get_command are called from different threads */
 115
 116 static void
 117 push_command(SpiceScreen *spice_screen, QXLCommandExt *ext)
 118 {
 119     g_mutex_lock(spice_screen->command_mutex);
 120
 121     while (spice_screen->commands_end - spice_screen->commands_start >= COMMANDS_SIZE) {
 122         g_cond_wait(spice_screen->command_cond, spice_screen->command_mutex);
 123     }
 124
 125     g_assert(spice_screen->commands_end - spice_screen->commands_start < COMMANDS_SIZE);
 126
 127     spice_screen->commands[spice_screen->commands_end % COMMANDS_SIZE] = ext;
 128     spice_screen->commands_end++;
 129
 130     g_mutex_unlock(spice_screen->command_mutex);
 131
 132     spice_screen->qxl_worker->wakeup(spice_screen->qxl_worker);
 133 }
 134
 135 /* bitmap are freed, so they must be allocated with g_malloc */
 136 static SimpleSpiceUpdate *
 137 spice_screen_update_from_bitmap_cmd(uint32_t surface_id, QXLRect bbox, uint8_t *bitmap, int cache_id)
 138 {
 139     SimpleSpiceUpdate *update;
 140     QXLDrawable *drawable;
 141     QXLImage *image;
 142     uint32_t bw, bh;
 143
 144     bh = bbox.bottom - bbox.top;
 145     bw = bbox.right - bbox.left;
 146
 147     update   = g_new0(SimpleSpiceUpdate, 1);
 148     update->bitmap = bitmap;
 149     drawable = &update->drawable;
 150     image    = &update->image;
 151
 152     drawable->surface_id      = surface_id;
 153
 154     drawable->bbox            = bbox;
 155     drawable->clip.type       = SPICE_CLIP_TYPE_NONE;
 156     drawable->effect          = QXL_EFFECT_OPAQUE;
 157     simple_set_release_info(&drawable->release_info, (intptr_t)update);
 158     drawable->type            = QXL_DRAW_COPY;
 159     drawable->surfaces_dest[0] = -1;
 160     drawable->surfaces_dest[1] = -1;
 161     drawable->surfaces_dest[2] = -1;
 162
 163     drawable->u.copy.rop_descriptor  = SPICE_ROPD_OP_PUT;
 164     drawable->u.copy.src_bitmap      = (intptr_t)image;
 165     drawable->u.copy.src_area.right  = bw;
 166     drawable->u.copy.src_area.bottom = bh;
 167
 168     if (cache_id) {
 169         QXL_SET_IMAGE_ID(image, QXL_IMAGE_GROUP_DEVICE, cache_id);
 170     } else {
 171         QXL_SET_IMAGE_ID(image, QXL_IMAGE_GROUP_DEVICE, ++unique);
 172     }
 173     image->descriptor.type   = SPICE_IMAGE_TYPE_BITMAP;
 174     image->bitmap.flags      = QXL_BITMAP_DIRECT | QXL_BITMAP_TOP_DOWN;
 175     image->bitmap.stride     = bw * 4;
 176     image->descriptor.width  = image->bitmap.x = bw;
 177     image->descriptor.height = image->bitmap.y = bh;
 178     image->bitmap.data = (intptr_t)bitmap;
 179     image->bitmap.palette = 0;
 180     image->bitmap.format = SPICE_BITMAP_FMT_32BIT;
 181
 182     set_cmd(&update->ext, QXL_CMD_DRAW, (intptr_t)drawable);
 183
 184     return update;
 185 }
 186
 187 static SimpleSpiceUpdate *
 188 spice_screen_draw_char_cmd(SpiceScreen *spice_screen, int x, int y, int c,
 189                            int fg, int bg, gboolean uline)
 190 {
 191     int top, left;
 192     uint8_t *dst;
 193     uint8_t *bitmap;
 194     int bw, bh;
 195     int i, j;
 196     QXLRect bbox;
 197     int cache_id = 0;
 198
 199     if (!uline && c < 256) {
 200         cache_id = ((fg << 12) | (bg << 8) | (c & 255)) & 0x0ffff;
 201     }
 202
 203     left = x*8;
 204     top = y*16;
 205
 206     bw       = 8;
 207     bh       = 16;
 208
 209     bitmap = dst = g_malloc(bw * bh * 4);
 210
 211     unsigned char *data = vt_font_data + c*16;
 212     unsigned char d = *data;
 213
 214     g_assert(fg >= 0 && fg < 16);
 215     g_assert(bg >= 0 && bg < 16);
 216
 217     unsigned char fgc_red = default_red[fg];
 218     unsigned char fgc_blue = default_blu[fg];
 219     unsigned char fgc_green = default_grn[fg];
 220     unsigned char bgc_red = default_red[bg];
 221     unsigned char bgc_blue = default_blu[bg];
 222     unsigned char bgc_green = default_grn[bg];
 223
 224     for (j = 0; j < 16; j++) {
 225         gboolean ul = (j == 14) && uline;
 226         for (i = 0; i < 8; i++) {
 227             if (i == 0) {
 228                 d=*data;
 229                 data++;
 230             }
 231             if (ul || d&0x80) {
 232                  *(dst) = fgc_blue;
 233                  *(dst+1) = fgc_green;
 234                  *(dst+2) = fgc_red;
 235                  *(dst+3) = 0;
 236             } else {
 237                  *(dst) = bgc_blue;
 238                  *(dst+1) = bgc_green;
 239                  *(dst+2) = bgc_red;
 240                  *(dst+3) = 0;
 241             }
 242             d<<=1;
 243             dst += 4;
 244         }
 245     }
 246
 247     bbox.left = left; bbox.top = top;
 248     bbox.right = left + bw; bbox.bottom = top + bh;
 249
 250     return spice_screen_update_from_bitmap_cmd(0, bbox, bitmap, cache_id);
 251 }
 252
 253 void
 254 spice_screen_scroll(SpiceScreen *spice_screen, int x1, int y1,
 255                     int x2, int y2, int src_x, int src_y)
 256 {
 257     SimpleSpiceUpdate *update;
 258     QXLDrawable *drawable;
 259     QXLRect bbox;
 260
 261     int surface_id = 0;
 262
 263     update   = g_new0(SimpleSpiceUpdate, 1);
 264     drawable = &update->drawable;
 265
 266     bbox.left = x1;
 267     bbox.top = y1;
 268     bbox.right = x2;
 269     bbox.bottom = y2;
 270
 271     drawable->surface_id = surface_id;
 272
 273     drawable->bbox            = bbox;
 274     drawable->clip.type       = SPICE_CLIP_TYPE_NONE;
 275     drawable->effect          = QXL_EFFECT_OPAQUE;
 276     simple_set_release_info(&drawable->release_info, (intptr_t)update);
 277     drawable->type            = QXL_COPY_BITS;
 278     drawable->surfaces_dest[0] = -1;
 279     drawable->surfaces_dest[1] = -1;
 280     drawable->surfaces_dest[2] = -1;
 281
 282     drawable->u.copy_bits.src_pos.x = src_x;
 283     drawable->u.copy_bits.src_pos.y = src_y;
 284
 285     set_cmd(&update->ext, QXL_CMD_DRAW, (intptr_t)drawable);
 286
 287     push_command(spice_screen, &update->ext);
 288 }
 289
 290 void
 291 spice_screen_clear(SpiceScreen *spice_screen, int x1, int y1, int x2, int y2)
 292 {
 293     SimpleSpiceUpdate *update;
 294     QXLDrawable *drawable;
 295     QXLRect bbox;
 296
 297     int surface_id = 0;
 298
 299     update   = g_new0(SimpleSpiceUpdate, 1);
 300     drawable = &update->drawable;
 301
 302     bbox.left = x1;
 303     bbox.top = y1;
 304     bbox.right = x2;
 305     bbox.bottom = y2;
 306
 307     drawable->surface_id = surface_id;
 308
 309     drawable->bbox            = bbox;
 310     drawable->clip.type       = SPICE_CLIP_TYPE_NONE;
 311     drawable->effect          = QXL_EFFECT_OPAQUE;
 312     simple_set_release_info(&drawable->release_info, (intptr_t)update);
 313     drawable->type            = QXL_DRAW_BLACKNESS;
 314     drawable->surfaces_dest[0] = -1;
 315     drawable->surfaces_dest[1] = -1;
 316     drawable->surfaces_dest[2] = -1;
 317
 318     set_cmd(&update->ext, QXL_CMD_DRAW, (intptr_t)drawable);
 319
 320     push_command(spice_screen, &update->ext);
 321 }
 322
 323 static void
 324 create_primary_surface(SpiceScreen *spice_screen, uint32_t width,
 325                        uint32_t height)
 326 {
 327     QXLWorker *qxl_worker = spice_screen->qxl_worker;
 328     QXLDevSurfaceCreate surface = { 0, };
 329
 330     g_assert(height <= MAX_HEIGHT);
 331     g_assert(width <= MAX_WIDTH);
 332     g_assert(height > 0);
 333     g_assert(width > 0);
 334
 335     surface.format     = SPICE_SURFACE_FMT_32_xRGB;
 336     surface.width      = spice_screen->primary_width = width;
 337     surface.height     = spice_screen->primary_height = height;
 338     surface.stride     = -width * 4; /* negative? */
 339     surface.mouse_mode = TRUE; /* unused by red_worker */
 340     surface.flags      = 0;
 341     surface.type       = 0;    /* unused by red_worker */
 342     surface.position   = 0;    /* unused by red_worker */
 343     surface.mem        = (uint64_t)&spice_screen->primary_surface;
 344     surface.group_id   = MEM_SLOT_GROUP_ID;
 345
 346     spice_screen->width = width;
 347     spice_screen->height = height;
 348
 349     qxl_worker->create_primary_surface(qxl_worker, 0, &surface);
 350 }
 351
 352 QXLDevMemSlot slot = {
 353     .slot_group_id = MEM_SLOT_GROUP_ID,
 354     .slot_id = 0,
 355     .generation = 0,
 356     .virt_start = 0,
 357     .virt_end = ~0,
 358     .addr_delta = 0,
 359     .qxl_ram_size = ~0,
 360 };
 361
 362 static void
 363 attache_worker(QXLInstance *qin, QXLWorker *_qxl_worker)
 364 {
 365     SpiceScreen *spice_screen = SPICE_CONTAINEROF(qin, SpiceScreen, qxl_instance);
 366
 367     if (spice_screen->qxl_worker) {
 368         g_assert_not_reached();
 369     }
 370
 371     spice_screen->qxl_worker = _qxl_worker;
 372     spice_screen->qxl_worker->add_memslot(spice_screen->qxl_worker, &slot);
 373     create_primary_surface(spice_screen, DEFAULT_WIDTH, DEFAULT_HEIGHT);
 374     spice_screen->qxl_worker->start(spice_screen->qxl_worker);
 375 }
 376
 377 static void
 378 set_compression_level(QXLInstance *qin, int level)
 379 {
 380     /* not used */
 381 }
 382
 383 static void
 384 set_mm_time(QXLInstance *qin, uint32_t mm_time)
 385 {
 386     /* not used */
 387 }
 388
 389 static void
 390 get_init_info(QXLInstance *qin, QXLDevInitInfo *info)
 391 {
 392     memset(info, 0, sizeof(*info));
 393     info->num_memslots = 1;
 394     info->num_memslots_groups = 1;
 395     info->memslot_id_bits = 1;
 396     info->memslot_gen_bits = 1;
 397     info->n_surfaces = 1;
 398 }
 399
 400 /* called from spice_server thread (i.e. red_worker thread) */
 401 static int
 402 get_command(QXLInstance *qin, struct QXLCommandExt *ext)
 403 {
 404     SpiceScreen *spice_screen = SPICE_CONTAINEROF(qin, SpiceScreen, qxl_instance);
 405     int res = FALSE;
 406
 407     g_mutex_lock(spice_screen->command_mutex);
 408
 409     if ((spice_screen->commands_end - spice_screen->commands_start) == 0) {
 410         res = FALSE;
 411         goto ret;
 412     }
 413
 414     *ext = *spice_screen->commands[spice_screen->commands_start % COMMANDS_SIZE];
 415     g_assert(spice_screen->commands_start < spice_screen->commands_end);
 416     spice_screen->commands_start++;
 417     g_cond_signal(spice_screen->command_cond);
 418
 419     res = TRUE;
 420
 421 ret:
 422     g_mutex_unlock(spice_screen->command_mutex);
 423     return res;
 424 }
 425
 426 static int
 427 req_cmd_notification(QXLInstance *qin)
 428 {
 429     //SpiceScreen *spice_screen = SPICE_CONTAINEROF(qin, SpiceScreen, qxl_instance);
 430     //spice_screen->core->timer_start(spice_screen->wakeup_timer, spice_screen->wakeup_ms);
 431
 432     return TRUE;
 433 }
 434
 435 static void
 436 release_resource(QXLInstance *qin, struct QXLReleaseInfoExt release_info)
 437 {
 438     QXLCommandExt *ext = (QXLCommandExt*)(unsigned long)release_info.info->id;
 439
 440     g_assert(release_info.group_id == MEM_SLOT_GROUP_ID);
 441     switch (ext->cmd.type) {
 442         case QXL_CMD_DRAW:
 443             spice_screen_destroy_update((void*)ext);
 444             break;
 445         case QXL_CMD_SURFACE:
 446             free(ext);
 447             break;
 448         case QXL_CMD_CURSOR: {
 449             QXLCursorCmd *cmd = (QXLCursorCmd *)(unsigned long)ext->cmd.data;
 450             if (cmd->type == QXL_CURSOR_SET) {
 451                 free(cmd);
 452             }
 453             free(ext);
 454             break;
 455         }
 456         default:
 457             abort();
 458     }
 459 }
 460
 461 #define CURSOR_WIDTH 8
 462 #define CURSOR_HEIGHT 16
 463
 464 static struct {
 465     QXLCursor cursor;
 466     uint8_t data[CURSOR_WIDTH * CURSOR_HEIGHT * 4]; // 32bit per pixel
 467 } cursor;
 468
 469 static void
 470 cursor_init()
 471 {
 472     cursor.cursor.header.unique = 0;
 473     cursor.cursor.header.type = SPICE_CURSOR_TYPE_COLOR32;
 474     cursor.cursor.header.width = CURSOR_WIDTH;
 475     cursor.cursor.header.height = CURSOR_HEIGHT;
 476     cursor.cursor.header.hot_spot_x = 0;
 477     cursor.cursor.header.hot_spot_y = 0;
 478     cursor.cursor.data_size = CURSOR_WIDTH * CURSOR_HEIGHT * 4;
 479
 480     // X drivers addes it to the cursor size because it could be
 481     // cursor data information or another cursor related stuffs.
 482     // Otherwise, the code will break in client/cursor.cpp side,
 483     // that expect the data_size plus cursor information.
 484     // Blame cursor protocol for this. :-)
 485     cursor.cursor.data_size += 128;
 486     cursor.cursor.chunk.data_size = cursor.cursor.data_size;
 487     cursor.cursor.chunk.prev_chunk = cursor.cursor.chunk.next_chunk = 0;
 488 }
 489
 490 static int
 491 get_cursor_command(QXLInstance *qin, struct QXLCommandExt *ext)
 492 {
 493     SpiceScreen *spice_screen = SPICE_CONTAINEROF(qin, SpiceScreen, qxl_instance);
 494     static int set = 1;
 495     static int x = 0, y = 0;
 496     QXLCursorCmd *cursor_cmd;
 497     QXLCommandExt *cmd;
 498
 499     if (!spice_screen->cursor_notify) {
 500         return FALSE;
 501     }
 502
 503     spice_screen->cursor_notify--;
 504     cmd = calloc(sizeof(QXLCommandExt), 1);
 505     cursor_cmd = calloc(sizeof(QXLCursorCmd), 1);
 506
 507     cursor_cmd->release_info.id = (unsigned long)cmd;
 508
 509     if (set) {
 510         cursor_cmd->type = QXL_CURSOR_SET;
 511         cursor_cmd->u.set.position.x = 0;
 512         cursor_cmd->u.set.position.y = 0;
 513         cursor_cmd->u.set.visible = TRUE;
 514         cursor_cmd->u.set.shape = (unsigned long)&cursor;
 515         // white rect as cursor
 516         memset(cursor.data, 255, sizeof(cursor.data));
 517         set = 0;
 518     } else {
 519         cursor_cmd->type = QXL_CURSOR_MOVE;
 520         cursor_cmd->u.position.x = x++ % spice_screen->primary_width;
 521         cursor_cmd->u.position.y = y++ % spice_screen->primary_height;
 522     }
 523
 524     cmd->cmd.data = (unsigned long)cursor_cmd;
 525     cmd->cmd.type = QXL_CMD_CURSOR;
 526     cmd->group_id = MEM_SLOT_GROUP_ID;
 527     cmd->flags    = 0;
 528     *ext = *cmd;
 529
 530     return TRUE;
 531 }
 532
 533 static int
 534 req_cursor_notification(QXLInstance *qin)
 535 {
 536     /* not used */
 537
 538     return TRUE;
 539 }
 540
 541 static void
 542 notify_update(QXLInstance *qin, uint32_t update_id)
 543 {
 544     /* not used */
 545 }
 546
 547 static int
 548 flush_resources(QXLInstance *qin)
 549 {
 550     /* not used */
 551
 552     return TRUE;
 553 }
 554
 555 static int
 556 client_monitors_config(QXLInstance *qin, VDAgentMonitorsConfig *monitors_config)
 557 {
 558     /* not used */
 559
 560     return 0;
 561 }
 562
 563 static void
 564 set_client_capabilities(QXLInstance *qin, uint8_t client_present,
 565                         uint8_t caps[58])
 566 {
 567     SpiceScreen *spice_screen = SPICE_CONTAINEROF(qin, SpiceScreen, qxl_instance);
 568
 569     DPRINTF(1, "present %d caps %d", client_present, caps[0]);
 570
 571     if (spice_screen->on_client_connected && client_present) {
 572         spice_screen->on_client_connected(spice_screen);
 573     }
 574     if (spice_screen->on_client_disconnected && !client_present) {
 575         spice_screen->on_client_disconnected(spice_screen);
 576     }
 577 }
 578
 579 static int client_count = 0;
 580
 581 static void
 582 client_connected(SpiceScreen *spice_screen)
 583 {
 584     client_count++;
 585
 586     DPRINTF(1, "client_count = %d", client_count);
 587 }
 588
 589 static void
 590 client_disconnected(SpiceScreen *spice_screen)
 591 {
 592     if (client_count > 0) {
 593         client_count--;
 594         DPRINTF(1, "client_count = %d", client_count);
 595         exit(0); // fixme: cleanup?
 596     }
 597 }
 598
 599 static void
 600 do_conn_timeout(void *opaque)
 601 {
 602     // SpiceScreen *spice_screen = opaque;
 603
 604     if (client_count <= 0) {
 605         printf("connection timeout - stopping server\n");
 606         exit (0); // fixme: cleanup?
 607     }
 608 }
 609
 610 QXLInterface display_sif = {
 611     .base = {
 612         .type = SPICE_INTERFACE_QXL,
 613         .description = "spiceterm display server",
 614         .major_version = SPICE_INTERFACE_QXL_MAJOR,
 615         .minor_version = SPICE_INTERFACE_QXL_MINOR
 616     },
 617     .attache_worker = attache_worker,
 618     .set_compression_level = set_compression_level,
 619     .set_mm_time = set_mm_time,
 620     .get_init_info = get_init_info,
 621
 622     /* the callbacks below are called from spice server thread context */
 623     .get_command = get_command,
 624     .req_cmd_notification = req_cmd_notification,
 625     .release_resource = release_resource,
 626     .get_cursor_command = get_cursor_command,
 627     .req_cursor_notification = req_cursor_notification,
 628     .notify_update = notify_update,
 629     .flush_resources = flush_resources,
 630     .client_monitors_config = client_monitors_config,
 631     .set_client_capabilities = set_client_capabilities,
 632 };
 633
 634 /* vdagent interface - not sure why we need that? */
 635 static int
 636 vmc_write(SpiceCharDeviceInstance *sin, const uint8_t *buf, int len)
 637 {
 638     return len;
 639 }
 640
 641 static int
 642 vmc_read(SpiceCharDeviceInstance *sin, uint8_t *buf, int len)
 643 {
 644     return 0;
 645 }
 646
 647 static void
 648 vmc_state(SpiceCharDeviceInstance *sin, int connected)
 649 {
 650
 651 }
 652
 653 static SpiceCharDeviceInterface vdagent_sif = {
 654     .base.type          = SPICE_INTERFACE_CHAR_DEVICE,
 655     .base.description   = "spice virtual channel char device",
 656     .base.major_version = SPICE_INTERFACE_CHAR_DEVICE_MAJOR,
 657     .base.minor_version = SPICE_INTERFACE_CHAR_DEVICE_MINOR,
 658     .state              = vmc_state,
 659     .write              = vmc_write,
 660     .read               = vmc_read,
 661 };
 662
 663 SpiceCharDeviceInstance vdagent_sin = {
 664     .base = {
 665         .sif = &vdagent_sif.base,
 666     },
 667     .subtype = "vdagent",
 668 };
 669
 670 void
 671 spice_screen_draw_char(SpiceScreen *spice_screen, int x, int y, gunichar2 ch, TextAttributes attrib)
 672 {
 673     int fg, bg;
 674
 675     if (attrib.invers) {
 676         bg = attrib.fgcol;
 677         fg = attrib.bgcol;
 678     } else {
 679         bg = attrib.bgcol;
 680         fg = attrib.fgcol;
 681     }
 682
 683     if (attrib.bold) {
 684         fg += 8;
 685     }
 686
 687     // unsuported attributes = (attrib.blink || attrib.unvisible)
 688
 689     int c = vt_fontmap[ch];
 690
 691     SimpleSpiceUpdate *update;
 692     update = spice_screen_draw_char_cmd(spice_screen, x, y, c, fg, bg, attrib.uline);
 693     push_command(spice_screen, &update->ext);
 694 }
 695
 696 SpiceScreen *
 697 spice_screen_new(SpiceCoreInterface *core)
 698 {
 699     int port = 5912;
 700     SpiceScreen *spice_screen = g_new0(SpiceScreen, 1);
 701     SpiceServer* server = spice_server_new();
 702
 703     spice_screen->command_cond = g_cond_new();
 704     spice_screen->command_mutex = g_mutex_new();
 705
 706     spice_screen->on_client_connected = client_connected,
 707     spice_screen->on_client_disconnected = client_disconnected,
 708
 709     spice_screen->qxl_instance.base.sif = &display_sif.base;
 710     spice_screen->qxl_instance.id = 0;
 711
 712     spice_screen->core = core;
 713     spice_screen->server = server;
 714
 715     spice_screen->cursor_notify = NOTIFY_CURSOR_BATCH;
 716
 717     printf("listening on port %d (unsecure)\n", port);
 718
 719     spice_server_set_port(server, port);
 720     spice_server_set_noauth(server);
 721
 722     int res = spice_server_init(server, core);
 723     if (res != 0) {
 724         g_error("spice_server_init failed, res = %d\n", res);
 725     }
 726
 727     cursor_init();
 728
 729     int timeout = 10; // max time to wait for client connection
 730     spice_screen->conn_timeout_timer = core->timer_add(do_conn_timeout, spice_screen);
 731     spice_screen->core->timer_start(spice_screen->conn_timeout_timer, timeout*1000);
 732
 733     spice_server_add_interface(spice_screen->server, &spice_screen->qxl_instance.base);
 734
 735     spice_server_add_interface(server, &vdagent_sin.base);
 736
 737     return spice_screen;
 738 }