ui/spice-display.c

   1 /*
   2  * Copyright (C) 2010 Red Hat, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 or
   7  * (at your option) version 3 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "qemu-common.h"
  19 #include "ui/qemu-spice.h"
  20 #include "qemu/timer.h"
  21 #include "qemu/queue.h"
  22 #include "monitor/monitor.h"
  23 #include "ui/console.h"
  24 #include "sysemu/sysemu.h"
  25 #include "trace.h"
  26
  27 #include "ui/spice-display.h"
  28
  29 static int debug = 0;
  30
  31 static void GCC_FMT_ATTR(2, 3) dprint(int level, const char *fmt, ...)
  32 {
  33     va_list args;
  34
  35     if (level <= debug) {
  36         va_start(args, fmt);
  37         vfprintf(stderr, fmt, args);
  38         va_end(args);
  39     }
  40 }
  41
  42 int qemu_spice_rect_is_empty(const QXLRect* r)
  43 {
  44     return r->top == r->bottom || r->left == r->right;
  45 }
  46
  47 void qemu_spice_rect_union(QXLRect *dest, const QXLRect *r)
  48 {
  49     if (qemu_spice_rect_is_empty(r)) {
  50         return;
  51     }
  52
  53     if (qemu_spice_rect_is_empty(dest)) {
  54         *dest = *r;
  55         return;
  56     }
  57
  58     dest->top = MIN(dest->top, r->top);
  59     dest->left = MIN(dest->left, r->left);
  60     dest->bottom = MAX(dest->bottom, r->bottom);
  61     dest->right = MAX(dest->right, r->right);
  62 }
  63
  64 QXLCookie *qxl_cookie_new(int type, uint64_t io)
  65 {
  66     QXLCookie *cookie;
  67
  68     cookie = g_malloc0(sizeof(*cookie));
  69     cookie->type = type;
  70     cookie->io = io;
  71     return cookie;
  72 }
  73
  74 void qemu_spice_add_memslot(SimpleSpiceDisplay *ssd, QXLDevMemSlot *memslot,
  75                             qxl_async_io async)
  76 {
  77     trace_qemu_spice_add_memslot(ssd->qxl.id, memslot->slot_id,
  78                                 memslot->virt_start, memslot->virt_end,
  79                                 async);
  80
  81     if (async != QXL_SYNC) {
  82         spice_qxl_add_memslot_async(&ssd->qxl, memslot,
  83                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
  84                                           QXL_IO_MEMSLOT_ADD_ASYNC));
  85     } else {
  86         spice_qxl_add_memslot(&ssd->qxl, memslot);
  87     }
  88 }
  89
  90 void qemu_spice_del_memslot(SimpleSpiceDisplay *ssd, uint32_t gid, uint32_t sid)
  91 {
  92     trace_qemu_spice_del_memslot(ssd->qxl.id, gid, sid);
  93     spice_qxl_del_memslot(&ssd->qxl, gid, sid);
  94 }
  95
  96 void qemu_spice_create_primary_surface(SimpleSpiceDisplay *ssd, uint32_t id,
  97                                        QXLDevSurfaceCreate *surface,
  98                                        qxl_async_io async)
  99 {
 100     trace_qemu_spice_create_primary_surface(ssd->qxl.id, id, surface, async);
 101     if (async != QXL_SYNC) {
 102         spice_qxl_create_primary_surface_async(&ssd->qxl, id, surface,
 103                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
 104                                           QXL_IO_CREATE_PRIMARY_ASYNC));
 105     } else {
 106         spice_qxl_create_primary_surface(&ssd->qxl, id, surface);
 107     }
 108 }
 109
 110 void qemu_spice_destroy_primary_surface(SimpleSpiceDisplay *ssd,
 111                                         uint32_t id, qxl_async_io async)
 112 {
 113     trace_qemu_spice_destroy_primary_surface(ssd->qxl.id, id, async);
 114     if (async != QXL_SYNC) {
 115         spice_qxl_destroy_primary_surface_async(&ssd->qxl, id,
 116                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
 117                                           QXL_IO_DESTROY_PRIMARY_ASYNC));
 118     } else {
 119         spice_qxl_destroy_primary_surface(&ssd->qxl, id);
 120     }
 121 }
 122
 123 void qemu_spice_wakeup(SimpleSpiceDisplay *ssd)
 124 {
 125     trace_qemu_spice_wakeup(ssd->qxl.id);
 126     spice_qxl_wakeup(&ssd->qxl);
 127 }
 128
 129 static void qemu_spice_create_one_update(SimpleSpiceDisplay *ssd,
 130                                          QXLRect *rect)
 131 {
 132     SimpleSpiceUpdate *update;
 133     QXLDrawable *drawable;
 134     QXLImage *image;
 135     QXLCommand *cmd;
 136     int bw, bh;
 137     struct timespec time_space;
 138     pixman_image_t *dest;
 139
 140     trace_qemu_spice_create_update(
 141            rect->left, rect->right,
 142            rect->top, rect->bottom);
 143
 144     update   = g_malloc0(sizeof(*update));
 145     drawable = &update->drawable;
 146     image    = &update->image;
 147     cmd      = &update->ext.cmd;
 148
 149     bw       = rect->right - rect->left;
 150     bh       = rect->bottom - rect->top;
 151     update->bitmap = g_malloc(bw * bh * 4);
 152
 153     drawable->bbox            = *rect;
 154     drawable->clip.type       = SPICE_CLIP_TYPE_NONE;
 155     drawable->effect          = QXL_EFFECT_OPAQUE;
 156     drawable->release_info.id = (uintptr_t)(&update->ext);
 157     drawable->type            = QXL_DRAW_COPY;
 158     drawable->surfaces_dest[0] = -1;
 159     drawable->surfaces_dest[1] = -1;
 160     drawable->surfaces_dest[2] = -1;
 161     clock_gettime(CLOCK_MONOTONIC, &time_space);
 162     /* time in milliseconds from epoch. */
 163     drawable->mm_time = time_space.tv_sec * 1000
 164                       + time_space.tv_nsec / 1000 / 1000;
 165
 166     drawable->u.copy.rop_descriptor  = SPICE_ROPD_OP_PUT;
 167     drawable->u.copy.src_bitmap      = (uintptr_t)image;
 168     drawable->u.copy.src_area.right  = bw;
 169     drawable->u.copy.src_area.bottom = bh;
 170
 171     QXL_SET_IMAGE_ID(image, QXL_IMAGE_GROUP_DEVICE, ssd->unique++);
 172     image->descriptor.type   = SPICE_IMAGE_TYPE_BITMAP;
 173     image->bitmap.flags      = QXL_BITMAP_DIRECT | QXL_BITMAP_TOP_DOWN;
 174     image->bitmap.stride     = bw * 4;
 175     image->descriptor.width  = image->bitmap.x = bw;
 176     image->descriptor.height = image->bitmap.y = bh;
 177     image->bitmap.data = (uintptr_t)(update->bitmap);
 178     image->bitmap.palette = 0;
 179     image->bitmap.format = SPICE_BITMAP_FMT_32BIT;
 180
 181     dest = pixman_image_create_bits(PIXMAN_x8r8g8b8, bw, bh,
 182                                     (void *)update->bitmap, bw * 4);
 183     pixman_image_composite(PIXMAN_OP_SRC, ssd->surface, NULL, ssd->mirror,
 184                            rect->left, rect->top, 0, 0,
 185                            rect->left, rect->top, bw, bh);
 186     pixman_image_composite(PIXMAN_OP_SRC, ssd->mirror, NULL, dest,
 187                            rect->left, rect->top, 0, 0,
 188                            0, 0, bw, bh);
 189     pixman_image_unref(dest);
 190
 191     cmd->type = QXL_CMD_DRAW;
 192     cmd->data = (uintptr_t)drawable;
 193
 194     QTAILQ_INSERT_TAIL(&ssd->updates, update, next);
 195 }
 196
 197 static void qemu_spice_create_update(SimpleSpiceDisplay *ssd)
 198 {
 199     static const int blksize = 32;
 200     int blocks = (surface_width(ssd->ds) + blksize - 1) / blksize;
 201     int dirty_top[blocks];
 202     int y, yoff, x, xoff, blk, bw;
 203     int bpp = surface_bytes_per_pixel(ssd->ds);
 204     uint8_t *guest, *mirror;
 205
 206     if (qemu_spice_rect_is_empty(&ssd->dirty)) {
 207         return;
 208     };
 209
 210     if (ssd->surface == NULL) {
 211         ssd->surface = pixman_image_ref(ssd->ds->image);
 212         ssd->mirror  = qemu_pixman_mirror_create(ssd->ds->format,
 213                                                  ssd->ds->image);
 214     }
 215
 216     for (blk = 0; blk < blocks; blk++) {
 217         dirty_top[blk] = -1;
 218     }
 219
 220     guest = surface_data(ssd->ds);
 221     mirror = (void *)pixman_image_get_data(ssd->mirror);
 222     for (y = ssd->dirty.top; y < ssd->dirty.bottom; y++) {
 223         yoff = y * surface_stride(ssd->ds);
 224         for (x = ssd->dirty.left; x < ssd->dirty.right; x += blksize) {
 225             xoff = x * bpp;
 226             blk = x / blksize;
 227             bw = MIN(blksize, ssd->dirty.right - x);
 228             if (memcmp(guest + yoff + xoff,
 229                        mirror + yoff + xoff,
 230                        bw * bpp) == 0) {
 231                 if (dirty_top[blk] != -1) {
 232                     QXLRect update = {
 233                         .top    = dirty_top[blk],
 234                         .bottom = y,
 235                         .left   = x,
 236                         .right  = x + bw,
 237                     };
 238                     qemu_spice_create_one_update(ssd, &update);
 239                     dirty_top[blk] = -1;
 240                 }
 241             } else {
 242                 if (dirty_top[blk] == -1) {
 243                     dirty_top[blk] = y;
 244                 }
 245             }
 246         }
 247     }
 248
 249     for (x = ssd->dirty.left; x < ssd->dirty.right; x += blksize) {
 250         blk = x / blksize;
 251         bw = MIN(blksize, ssd->dirty.right - x);
 252         if (dirty_top[blk] != -1) {
 253             QXLRect update = {
 254                 .top    = dirty_top[blk],
 255                 .bottom = ssd->dirty.bottom,
 256                 .left   = x,
 257                 .right  = x + bw,
 258             };
 259             qemu_spice_create_one_update(ssd, &update);
 260             dirty_top[blk] = -1;
 261         }
 262     }
 263
 264     memset(&ssd->dirty, 0, sizeof(ssd->dirty));
 265 }
 266
 267 static SimpleSpiceCursor*
 268 qemu_spice_create_cursor_update(SimpleSpiceDisplay *ssd,
 269                                 QEMUCursor *c)
 270 {
 271     size_t size = c ? c->width * c->height * 4 : 0;
 272     SimpleSpiceCursor *update;
 273     QXLCursorCmd *ccmd;
 274     QXLCursor *cursor;
 275     QXLCommand *cmd;
 276
 277     update   = g_malloc0(sizeof(*update) + size);
 278     ccmd     = &update->cmd;
 279     cursor   = &update->cursor;
 280     cmd      = &update->ext.cmd;
 281
 282     if (c) {
 283         ccmd->type = QXL_CURSOR_SET;
 284         ccmd->u.set.position.x = ssd->ptr_x;
 285         ccmd->u.set.position.y = ssd->ptr_y;
 286         ccmd->u.set.visible    = true;
 287         ccmd->u.set.shape      = (uintptr_t)cursor;
 288         cursor->header.unique     = ssd->unique++;
 289         cursor->header.type       = SPICE_CURSOR_TYPE_ALPHA;
 290         cursor->header.width      = c->width;
 291         cursor->header.height     = c->height;
 292         cursor->header.hot_spot_x = c->hot_x;
 293         cursor->header.hot_spot_y = c->hot_y;
 294         cursor->data_size         = size;
 295         cursor->chunk.data_size   = size;
 296         memcpy(cursor->chunk.data, c->data, size);
 297     } else {
 298         ccmd->type = QXL_CURSOR_MOVE;
 299         ccmd->u.position.x = ssd->ptr_x;
 300         ccmd->u.position.y = ssd->ptr_y;
 301     }
 302     ccmd->release_info.id = (uintptr_t)(&update->ext);
 303
 304     cmd->type = QXL_CMD_CURSOR;
 305     cmd->data = (uintptr_t)ccmd;
 306
 307     return update;
 308 }
 309
 310 /*
 311  * Called from spice server thread context (via interface_release_resource)
 312  * We do *not* hold the global qemu mutex here, so extra care is needed
 313  * when calling qemu functions.  QEMU interfaces used:
 314  *    - g_free (underlying glibc free is re-entrant).
 315  */
 316 void qemu_spice_destroy_update(SimpleSpiceDisplay *sdpy, SimpleSpiceUpdate *update)
 317 {
 318     g_free(update->bitmap);
 319     g_free(update);
 320 }
 321
 322 void qemu_spice_create_host_memslot(SimpleSpiceDisplay *ssd)
 323 {
 324     QXLDevMemSlot memslot;
 325
 326     dprint(1, "%s/%d:\n", __func__, ssd->qxl.id);
 327
 328     memset(&memslot, 0, sizeof(memslot));
 329     memslot.slot_group_id = MEMSLOT_GROUP_HOST;
 330     memslot.virt_end = ~0;
 331     qemu_spice_add_memslot(ssd, &memslot, QXL_SYNC);
 332 }
 333
 334 void qemu_spice_create_host_primary(SimpleSpiceDisplay *ssd)
 335 {
 336     QXLDevSurfaceCreate surface;
 337
 338     memset(&surface, 0, sizeof(surface));
 339
 340     dprint(1, "%s/%d: %dx%d\n", __func__, ssd->qxl.id,
 341            surface_width(ssd->ds), surface_height(ssd->ds));
 342
 343     surface.format     = SPICE_SURFACE_FMT_32_xRGB;
 344     surface.width      = surface_width(ssd->ds);
 345     surface.height     = surface_height(ssd->ds);
 346     surface.stride     = -surface.width * 4;
 347     surface.mouse_mode = true;
 348     surface.flags      = 0;
 349     surface.type       = 0;
 350     surface.mem        = (uintptr_t)ssd->buf;
 351     surface.group_id   = MEMSLOT_GROUP_HOST;
 352
 353     qemu_spice_create_primary_surface(ssd, 0, &surface, QXL_SYNC);
 354 }
 355
 356 void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd)
 357 {
 358     dprint(1, "%s/%d:\n", __func__, ssd->qxl.id);
 359
 360     qemu_spice_destroy_primary_surface(ssd, 0, QXL_SYNC);
 361 }
 362
 363 void qemu_spice_display_init_common(SimpleSpiceDisplay *ssd)
 364 {
 365     qemu_mutex_init(&ssd->lock);
 366     QTAILQ_INIT(&ssd->updates);
 367     ssd->mouse_x = -1;
 368     ssd->mouse_y = -1;
 369     if (ssd->num_surfaces == 0) {
 370         ssd->num_surfaces = 1024;
 371     }
 372     ssd->bufsize = (16 * 1024 * 1024);
 373     ssd->buf = g_malloc(ssd->bufsize);
 374 }
 375
 376 /* display listener callbacks */
 377
 378 void qemu_spice_display_update(SimpleSpiceDisplay *ssd,
 379                                int x, int y, int w, int h)
 380 {
 381     QXLRect update_area;
 382
 383     dprint(2, "%s/%d: x %d y %d w %d h %d\n", __func__,
 384            ssd->qxl.id, x, y, w, h);
 385     update_area.left = x,
 386     update_area.right = x + w;
 387     update_area.top = y;
 388     update_area.bottom = y + h;
 389
 390     if (qemu_spice_rect_is_empty(&ssd->dirty)) {
 391         ssd->notify++;
 392     }
 393     qemu_spice_rect_union(&ssd->dirty, &update_area);
 394 }
 395
 396 void qemu_spice_display_switch(SimpleSpiceDisplay *ssd,
 397                                DisplaySurface *surface)
 398 {
 399     SimpleSpiceUpdate *update;
 400     bool need_destroy;
 401
 402     dprint(1, "%s/%d:\n", __func__, ssd->qxl.id);
 403
 404     memset(&ssd->dirty, 0, sizeof(ssd->dirty));
 405     if (ssd->surface) {
 406         pixman_image_unref(ssd->surface);
 407         ssd->surface = NULL;
 408         pixman_image_unref(ssd->mirror);
 409         ssd->mirror = NULL;
 410     }
 411
 412     qemu_mutex_lock(&ssd->lock);
 413     need_destroy = (ssd->ds != NULL);
 414     ssd->ds = surface;
 415     while ((update = QTAILQ_FIRST(&ssd->updates)) != NULL) {
 416         QTAILQ_REMOVE(&ssd->updates, update, next);
 417         qemu_spice_destroy_update(ssd, update);
 418     }
 419     qemu_mutex_unlock(&ssd->lock);
 420     if (need_destroy) {
 421         qemu_spice_destroy_host_primary(ssd);
 422     }
 423     if (ssd->ds) {
 424         qemu_spice_create_host_primary(ssd);
 425     }
 426
 427     memset(&ssd->dirty, 0, sizeof(ssd->dirty));
 428     ssd->notify++;
 429 }
 430
 431 void qemu_spice_cursor_refresh_unlocked(SimpleSpiceDisplay *ssd)
 432 {
 433     if (ssd->cursor) {
 434         assert(ssd->dcl.con);
 435         dpy_cursor_define(ssd->dcl.con, ssd->cursor);
 436         cursor_put(ssd->cursor);
 437         ssd->cursor = NULL;
 438     }
 439     if (ssd->mouse_x != -1 && ssd->mouse_y != -1) {
 440         assert(ssd->dcl.con);
 441         dpy_mouse_set(ssd->dcl.con, ssd->mouse_x, ssd->mouse_y, 1);
 442         ssd->mouse_x = -1;
 443         ssd->mouse_y = -1;
 444     }
 445 }
 446
 447 void qemu_spice_display_refresh(SimpleSpiceDisplay *ssd)
 448 {
 449     dprint(3, "%s/%d:\n", __func__, ssd->qxl.id);
 450     graphic_hw_update(ssd->dcl.con);
 451
 452     qemu_mutex_lock(&ssd->lock);
 453     if (QTAILQ_EMPTY(&ssd->updates) && ssd->ds) {
 454         qemu_spice_create_update(ssd);
 455         ssd->notify++;
 456     }
 457     qemu_spice_cursor_refresh_unlocked(ssd);
 458     qemu_mutex_unlock(&ssd->lock);
 459
 460     if (ssd->notify) {
 461         ssd->notify = 0;
 462         qemu_spice_wakeup(ssd);
 463         dprint(2, "%s/%d: notify\n", __func__, ssd->qxl.id);
 464     }
 465 }
 466
 467 /* spice display interface callbacks */
 468
 469 static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
 470 {
 471     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
 472
 473     dprint(1, "%s/%d:\n", __func__, ssd->qxl.id);
 474     ssd->worker = qxl_worker;
 475 }
 476
 477 static void interface_set_compression_level(QXLInstance *sin, int level)
 478 {
 479     dprint(1, "%s/%d:\n", __func__, sin->id);
 480     /* nothing to do */
 481 }
 482
 483 static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time)
 484 {
 485     dprint(3, "%s/%d:\n", __func__, sin->id);
 486     /* nothing to do */
 487 }
 488
 489 static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
 490 {
 491     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
 492
 493     info->memslot_gen_bits = MEMSLOT_GENERATION_BITS;
 494     info->memslot_id_bits  = MEMSLOT_SLOT_BITS;
 495     info->num_memslots = NUM_MEMSLOTS;
 496     info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
 497     info->internal_groupslot_id = 0;
 498     info->qxl_ram_size = ssd->bufsize;
 499     info->n_surfaces = ssd->num_surfaces;
 500 }
 501
 502 static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
 503 {
 504     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
 505     SimpleSpiceUpdate *update;
 506     int ret = false;
 507
 508     dprint(3, "%s/%d:\n", __func__, ssd->qxl.id);
 509
 510     qemu_mutex_lock(&ssd->lock);
 511     update = QTAILQ_FIRST(&ssd->updates);
 512     if (update != NULL) {
 513         QTAILQ_REMOVE(&ssd->updates, update, next);
 514         *ext = update->ext;
 515         ret = true;
 516     }
 517     qemu_mutex_unlock(&ssd->lock);
 518
 519     return ret;
 520 }
 521
 522 static int interface_req_cmd_notification(QXLInstance *sin)
 523 {
 524     dprint(1, "%s/%d:\n", __func__, sin->id);
 525     return 1;
 526 }
 527
 528 static void interface_release_resource(QXLInstance *sin,
 529                                        struct QXLReleaseInfoExt rext)
 530 {
 531     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
 532     SimpleSpiceUpdate *update;
 533     SimpleSpiceCursor *cursor;
 534     QXLCommandExt *ext;
 535
 536     dprint(2, "%s/%d:\n", __func__, ssd->qxl.id);
 537     ext = (void *)(intptr_t)(rext.info->id);
 538     switch (ext->cmd.type) {
 539     case QXL_CMD_DRAW:
 540         update = container_of(ext, SimpleSpiceUpdate, ext);
 541         qemu_spice_destroy_update(ssd, update);
 542         break;
 543     case QXL_CMD_CURSOR:
 544         cursor = container_of(ext, SimpleSpiceCursor, ext);
 545         g_free(cursor);
 546         break;
 547     default:
 548         g_assert_not_reached();
 549     }
 550 }
 551
 552 static int interface_get_cursor_command(QXLInstance *sin, struct QXLCommandExt *ext)
 553 {
 554     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
 555     int ret;
 556
 557     dprint(3, "%s/%d:\n", __func__, ssd->qxl.id);
 558
 559     qemu_mutex_lock(&ssd->lock);
 560     if (ssd->ptr_define) {
 561         *ext = ssd->ptr_define->ext;
 562         ssd->ptr_define = NULL;
 563         ret = true;
 564     } else if (ssd->ptr_move) {
 565         *ext = ssd->ptr_move->ext;
 566         ssd->ptr_move = NULL;
 567         ret = true;
 568     } else {
 569         ret = false;
 570     }
 571     qemu_mutex_unlock(&ssd->lock);
 572     return ret;
 573 }
 574
 575 static int interface_req_cursor_notification(QXLInstance *sin)
 576 {
 577     dprint(1, "%s:\n", __FUNCTION__);
 578     return 1;
 579 }
 580
 581 static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
 582 {
 583     fprintf(stderr, "%s: abort()\n", __FUNCTION__);
 584     abort();
 585 }
 586
 587 static int interface_flush_resources(QXLInstance *sin)
 588 {
 589     fprintf(stderr, "%s: abort()\n", __FUNCTION__);
 590     abort();
 591     return 0;
 592 }
 593
 594 static void interface_update_area_complete(QXLInstance *sin,
 595         uint32_t surface_id,
 596         QXLRect *dirty, uint32_t num_updated_rects)
 597 {
 598     /* should never be called, used in qxl native mode only */
 599     fprintf(stderr, "%s: abort()\n", __func__);
 600     abort();
 601 }
 602
 603 /* called from spice server thread context only */
 604 static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
 605 {
 606     /* should never be called, used in qxl native mode only */
 607     fprintf(stderr, "%s: abort()\n", __func__);
 608     abort();
 609 }
 610
 611 static void interface_set_client_capabilities(QXLInstance *sin,
 612                                               uint8_t client_present,
 613                                               uint8_t caps[58])
 614 {
 615     dprint(3, "%s:\n", __func__);
 616 }
 617
 618 static int interface_client_monitors_config(QXLInstance *sin,
 619                                             VDAgentMonitorsConfig *mc)
 620 {
 621     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
 622     QemuUIInfo info;
 623     int rc;
 624
 625     if (!mc) {
 626         return 1;
 627     }
 628
 629     /*
 630      * FIXME: multihead is tricky due to the way
 631      * spice has multihead implemented.
 632      */
 633     memset(&info, 0, sizeof(info));
 634     if (mc->num_of_monitors > 0) {
 635         info.width  = mc->monitors[0].width;
 636         info.height = mc->monitors[0].height;
 637     }
 638     rc = dpy_set_ui_info(ssd->dcl.con, &info);
 639     dprint(1, "%s/%d: size %dx%d, rc %d   <---   ==========================\n",
 640            __func__, ssd->qxl.id, info.width, info.height, rc);
 641     if (rc != 0) {
 642         return 0; /* == not supported by guest */
 643     } else {
 644         return 1;
 645     }
 646 }
 647
 648 static const QXLInterface dpy_interface = {
 649     .base.type               = SPICE_INTERFACE_QXL,
 650     .base.description        = "qemu simple display",
 651     .base.major_version      = SPICE_INTERFACE_QXL_MAJOR,
 652     .base.minor_version      = SPICE_INTERFACE_QXL_MINOR,
 653
 654     .attache_worker          = interface_attach_worker,
 655     .set_compression_level   = interface_set_compression_level,
 656     .set_mm_time             = interface_set_mm_time,
 657     .get_init_info           = interface_get_init_info,
 658
 659     /* the callbacks below are called from spice server thread context */
 660     .get_command             = interface_get_command,
 661     .req_cmd_notification    = interface_req_cmd_notification,
 662     .release_resource        = interface_release_resource,
 663     .get_cursor_command      = interface_get_cursor_command,
 664     .req_cursor_notification = interface_req_cursor_notification,
 665     .notify_update           = interface_notify_update,
 666     .flush_resources         = interface_flush_resources,
 667     .async_complete          = interface_async_complete,
 668     .update_area_complete    = interface_update_area_complete,
 669     .set_client_capabilities = interface_set_client_capabilities,
 670     .client_monitors_config  = interface_client_monitors_config,
 671 };
 672
 673 static void display_update(DisplayChangeListener *dcl,
 674                            int x, int y, int w, int h)
 675 {
 676     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 677     qemu_spice_display_update(ssd, x, y, w, h);
 678 }
 679
 680 static void display_switch(DisplayChangeListener *dcl,
 681                            struct DisplaySurface *surface)
 682 {
 683     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 684     qemu_spice_display_switch(ssd, surface);
 685 }
 686
 687 static void display_refresh(DisplayChangeListener *dcl)
 688 {
 689     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 690     qemu_spice_display_refresh(ssd);
 691 }
 692
 693 static void display_mouse_set(DisplayChangeListener *dcl,
 694                               int x, int y, int on)
 695 {
 696     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 697
 698     qemu_mutex_lock(&ssd->lock);
 699     ssd->ptr_x = x;
 700     ssd->ptr_y = x;
 701     if (ssd->ptr_move) {
 702         g_free(ssd->ptr_move);
 703     }
 704     ssd->ptr_move = qemu_spice_create_cursor_update(ssd, NULL);
 705     qemu_mutex_unlock(&ssd->lock);
 706 }
 707
 708 static void display_mouse_define(DisplayChangeListener *dcl,
 709                                  QEMUCursor *c)
 710 {
 711     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 712
 713     qemu_mutex_lock(&ssd->lock);
 714     if (ssd->ptr_move) {
 715         g_free(ssd->ptr_move);
 716         ssd->ptr_move = NULL;
 717     }
 718     if (ssd->ptr_define) {
 719         g_free(ssd->ptr_define);
 720     }
 721     ssd->ptr_define = qemu_spice_create_cursor_update(ssd, c);
 722     qemu_mutex_unlock(&ssd->lock);
 723 }
 724
 725 static const DisplayChangeListenerOps display_listener_ops = {
 726     .dpy_name          = "spice",
 727     .dpy_gfx_update    = display_update,
 728     .dpy_gfx_switch    = display_switch,
 729     .dpy_refresh       = display_refresh,
 730     .dpy_mouse_set     = display_mouse_set,
 731     .dpy_cursor_define = display_mouse_define,
 732 };
 733
 734 static void qemu_spice_display_init_one(QemuConsole *con)
 735 {
 736     SimpleSpiceDisplay *ssd = g_new0(SimpleSpiceDisplay, 1);
 737
 738     qemu_spice_display_init_common(ssd);
 739
 740     ssd->qxl.base.sif = &dpy_interface.base;
 741     qemu_spice_add_display_interface(&ssd->qxl, con);
 742     assert(ssd->worker);
 743
 744     qemu_spice_create_host_memslot(ssd);
 745
 746     ssd->dcl.ops = &display_listener_ops;
 747     ssd->dcl.con = con;
 748     register_displaychangelistener(&ssd->dcl);
 749 }
 750
 751 void qemu_spice_display_init(void)
 752 {
 753     QemuConsole *con;
 754     int i;
 755
 756     for (i = 0;; i++) {
 757         con = qemu_console_lookup_by_index(i);
 758         if (!con || !qemu_console_is_graphic(con)) {
 759             break;
 760         }
 761         if (qemu_spice_have_display_interface(con)) {
 762             continue;
 763         }
 764         qemu_spice_display_init_one(con);
 765     }
 766 }