qemu

spice-display.c (39135B)

---

 /*
  * Copyright (C) 2010 Red Hat, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation; either version 2 or
  * (at your option) version 3 of the License.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "qemu/osdep.h"
 #include "ui/qemu-spice.h"
 #include "qemu/timer.h"
 #include "qemu/lockable.h"
 #include "qemu/main-loop.h"
 #include "qemu/option.h"
 #include "qemu/queue.h"
 #include "ui/console.h"
 #include "trace.h"
 
 #include "ui/spice-display.h"
 
 bool spice_opengl;
 
 int qemu_spice_rect_is_empty(const QXLRect* r)
 {
     return r->top == r->bottom || r->left == r->right;
 }
 
 void qemu_spice_rect_union(QXLRect *dest, const QXLRect *r)
 {
     if (qemu_spice_rect_is_empty(r)) {
         return;
     }
 
     if (qemu_spice_rect_is_empty(dest)) {
         *dest = *r;
         return;
     }
 
     dest->top = MIN(dest->top, r->top);
     dest->left = MIN(dest->left, r->left);
     dest->bottom = MAX(dest->bottom, r->bottom);
     dest->right = MAX(dest->right, r->right);
 }
 
 QXLCookie *qxl_cookie_new(int type, uint64_t io)
 {
     QXLCookie *cookie;
 
     cookie = g_malloc0(sizeof(*cookie));
     cookie->type = type;
     cookie->io = io;
     return cookie;
 }
 
 void qemu_spice_add_memslot(SimpleSpiceDisplay *ssd, QXLDevMemSlot *memslot,
                             qxl_async_io async)
 {
     trace_qemu_spice_add_memslot(ssd->qxl.id, memslot->slot_id,
                                 memslot->virt_start, memslot->virt_end,
                                 async);
 
     if (async != QXL_SYNC) {
         spice_qxl_add_memslot_async(&ssd->qxl, memslot,
                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
                                           QXL_IO_MEMSLOT_ADD_ASYNC));
     } else {
         spice_qxl_add_memslot(&ssd->qxl, memslot);
     }
 }
 
 void qemu_spice_del_memslot(SimpleSpiceDisplay *ssd, uint32_t gid, uint32_t sid)
 {
     trace_qemu_spice_del_memslot(ssd->qxl.id, gid, sid);
     spice_qxl_del_memslot(&ssd->qxl, gid, sid);
 }
 
 void qemu_spice_create_primary_surface(SimpleSpiceDisplay *ssd, uint32_t id,
                                        QXLDevSurfaceCreate *surface,
                                        qxl_async_io async)
 {
     trace_qemu_spice_create_primary_surface(ssd->qxl.id, id, surface, async);
     if (async != QXL_SYNC) {
         spice_qxl_create_primary_surface_async(&ssd->qxl, id, surface,
                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
                                           QXL_IO_CREATE_PRIMARY_ASYNC));
     } else {
         spice_qxl_create_primary_surface(&ssd->qxl, id, surface);
     }
 }
 
 void qemu_spice_destroy_primary_surface(SimpleSpiceDisplay *ssd,
                                         uint32_t id, qxl_async_io async)
 {
     trace_qemu_spice_destroy_primary_surface(ssd->qxl.id, id, async);
     if (async != QXL_SYNC) {
         spice_qxl_destroy_primary_surface_async(&ssd->qxl, id,
                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
                                           QXL_IO_DESTROY_PRIMARY_ASYNC));
     } else {
         spice_qxl_destroy_primary_surface(&ssd->qxl, id);
     }
 }
 
 void qemu_spice_wakeup(SimpleSpiceDisplay *ssd)
 {
     trace_qemu_spice_wakeup(ssd->qxl.id);
     spice_qxl_wakeup(&ssd->qxl);
 }
 
 static void qemu_spice_create_one_update(SimpleSpiceDisplay *ssd,
                                          QXLRect *rect)
 {
     SimpleSpiceUpdate *update;
     QXLDrawable *drawable;
     QXLImage *image;
     QXLCommand *cmd;
     int bw, bh;
     struct timespec time_space;
     pixman_image_t *dest;
 
     trace_qemu_spice_create_update(
            rect->left, rect->right,
            rect->top, rect->bottom);
 
     update   = g_malloc0(sizeof(*update));
     drawable = &update->drawable;
     image    = &update->image;
     cmd      = &update->ext.cmd;
 
     bw       = rect->right - rect->left;
     bh       = rect->bottom - rect->top;
     update->bitmap = g_malloc(bw * bh * 4);
 
     drawable->bbox            = *rect;
     drawable->clip.type       = SPICE_CLIP_TYPE_NONE;
     drawable->effect          = QXL_EFFECT_OPAQUE;
     drawable->release_info.id = (uintptr_t)(&update->ext);
     drawable->type            = QXL_DRAW_COPY;
     drawable->surfaces_dest[0] = -1;
     drawable->surfaces_dest[1] = -1;
     drawable->surfaces_dest[2] = -1;
     clock_gettime(CLOCK_MONOTONIC, &time_space);
     /* time in milliseconds from epoch. */
     drawable->mm_time = time_space.tv_sec * 1000
                       + time_space.tv_nsec / 1000 / 1000;
 
     drawable->u.copy.rop_descriptor  = SPICE_ROPD_OP_PUT;
     drawable->u.copy.src_bitmap      = (uintptr_t)image;
     drawable->u.copy.src_area.right  = bw;
     drawable->u.copy.src_area.bottom = bh;
 
     QXL_SET_IMAGE_ID(image, QXL_IMAGE_GROUP_DEVICE, ssd->unique++);
     image->descriptor.type   = SPICE_IMAGE_TYPE_BITMAP;
     image->bitmap.flags      = QXL_BITMAP_DIRECT | QXL_BITMAP_TOP_DOWN;
     image->bitmap.stride     = bw * 4;
     image->descriptor.width  = image->bitmap.x = bw;
     image->descriptor.height = image->bitmap.y = bh;
     image->bitmap.data = (uintptr_t)(update->bitmap);
     image->bitmap.palette = 0;
     image->bitmap.format = SPICE_BITMAP_FMT_32BIT;
 
     dest = pixman_image_create_bits(PIXMAN_LE_x8r8g8b8, bw, bh,
                                     (void *)update->bitmap, bw * 4);
     pixman_image_composite(PIXMAN_OP_SRC, ssd->surface, NULL, ssd->mirror,
                            rect->left, rect->top, 0, 0,
                            rect->left, rect->top, bw, bh);
     pixman_image_composite(PIXMAN_OP_SRC, ssd->mirror, NULL, dest,
                            rect->left, rect->top, 0, 0,
                            0, 0, bw, bh);
     pixman_image_unref(dest);
 
     cmd->type = QXL_CMD_DRAW;
     cmd->data = (uintptr_t)drawable;
 
     QTAILQ_INSERT_TAIL(&ssd->updates, update, next);
 }
 
 static void qemu_spice_create_update(SimpleSpiceDisplay *ssd)
 {
     static const int blksize = 32;
     int blocks = DIV_ROUND_UP(surface_width(ssd->ds), blksize);
     int dirty_top[blocks];
     int y, yoff1, yoff2, x, xoff, blk, bw;
     int bpp = surface_bytes_per_pixel(ssd->ds);
     uint8_t *guest, *mirror;
 
     if (qemu_spice_rect_is_empty(&ssd->dirty)) {
         return;
     };
 
     for (blk = 0; blk < blocks; blk++) {
         dirty_top[blk] = -1;
     }
 
     guest = surface_data(ssd->ds);
     mirror = (void *)pixman_image_get_data(ssd->mirror);
     for (y = ssd->dirty.top; y < ssd->dirty.bottom; y++) {
         yoff1 = y * surface_stride(ssd->ds);
         yoff2 = y * pixman_image_get_stride(ssd->mirror);
         for (x = ssd->dirty.left; x < ssd->dirty.right; x += blksize) {
             xoff = x * bpp;
             blk = x / blksize;
             bw = MIN(blksize, ssd->dirty.right - x);
             if (memcmp(guest + yoff1 + xoff,
                        mirror + yoff2 + xoff,
                        bw * bpp) == 0) {
                 if (dirty_top[blk] != -1) {
                     QXLRect update = {
                         .top    = dirty_top[blk],
                         .bottom = y,
                         .left   = x,
                         .right  = x + bw,
                     };
                     qemu_spice_create_one_update(ssd, &update);
                     dirty_top[blk] = -1;
                 }
             } else {
                 if (dirty_top[blk] == -1) {
                     dirty_top[blk] = y;
                 }
             }
         }
     }
 
     for (x = ssd->dirty.left; x < ssd->dirty.right; x += blksize) {
         blk = x / blksize;
         bw = MIN(blksize, ssd->dirty.right - x);
         if (dirty_top[blk] != -1) {
             QXLRect update = {
                 .top    = dirty_top[blk],
                 .bottom = ssd->dirty.bottom,
                 .left   = x,
                 .right  = x + bw,
             };
             qemu_spice_create_one_update(ssd, &update);
             dirty_top[blk] = -1;
         }
     }
 
     memset(&ssd->dirty, 0, sizeof(ssd->dirty));
 }
 
 static SimpleSpiceCursor*
 qemu_spice_create_cursor_update(SimpleSpiceDisplay *ssd,
                                 QEMUCursor *c,
                                 int on)
 {
     size_t size = c ? c->width * c->height * 4 : 0;
     SimpleSpiceCursor *update;
     QXLCursorCmd *ccmd;
     QXLCursor *cursor;
     QXLCommand *cmd;
 
     update   = g_malloc0(sizeof(*update) + size);
     ccmd     = &update->cmd;
     cursor   = &update->cursor;
     cmd      = &update->ext.cmd;
 
     if (c) {
         ccmd->type = QXL_CURSOR_SET;
         ccmd->u.set.position.x = ssd->ptr_x + ssd->hot_x;
         ccmd->u.set.position.y = ssd->ptr_y + ssd->hot_y;
         ccmd->u.set.visible    = true;
         ccmd->u.set.shape      = (uintptr_t)cursor;
         cursor->header.unique     = ssd->unique++;
         cursor->header.type       = SPICE_CURSOR_TYPE_ALPHA;
         cursor->header.width      = c->width;
         cursor->header.height     = c->height;
         cursor->header.hot_spot_x = c->hot_x;
         cursor->header.hot_spot_y = c->hot_y;
         cursor->data_size         = size;
         cursor->chunk.data_size   = size;
         memcpy(cursor->chunk.data, c->data, size);
     } else if (!on) {
         ccmd->type = QXL_CURSOR_HIDE;
     } else {
         ccmd->type = QXL_CURSOR_MOVE;
         ccmd->u.position.x = ssd->ptr_x + ssd->hot_x;
         ccmd->u.position.y = ssd->ptr_y + ssd->hot_y;
     }
     ccmd->release_info.id = (uintptr_t)(&update->ext);
 
     cmd->type = QXL_CMD_CURSOR;
     cmd->data = (uintptr_t)ccmd;
 
     return update;
 }
 
 /*
  * Called from spice server thread context (via interface_release_resource)
  * We do *not* hold the global qemu mutex here, so extra care is needed
  * when calling qemu functions.  QEMU interfaces used:
  *    - g_free (underlying glibc free is re-entrant).
  */
 void qemu_spice_destroy_update(SimpleSpiceDisplay *sdpy, SimpleSpiceUpdate *update)
 {
     g_free(update->bitmap);
     g_free(update);
 }
 
 void qemu_spice_create_host_memslot(SimpleSpiceDisplay *ssd)
 {
     QXLDevMemSlot memslot;
 
     memset(&memslot, 0, sizeof(memslot));
     memslot.slot_group_id = MEMSLOT_GROUP_HOST;
     memslot.virt_end = ~0;
     qemu_spice_add_memslot(ssd, &memslot, QXL_SYNC);
 }
 
 void qemu_spice_create_host_primary(SimpleSpiceDisplay *ssd)
 {
     QXLDevSurfaceCreate surface;
     uint64_t surface_size;
 
     memset(&surface, 0, sizeof(surface));
 
     surface_size = (uint64_t) surface_width(ssd->ds) *
         surface_height(ssd->ds) * 4;
     assert(surface_size > 0);
     assert(surface_size < INT_MAX);
     if (ssd->bufsize < surface_size) {
         ssd->bufsize = surface_size;
         g_free(ssd->buf);
         ssd->buf = g_malloc(ssd->bufsize);
     }
 
     surface.format     = SPICE_SURFACE_FMT_32_xRGB;
     surface.width      = surface_width(ssd->ds);
     surface.height     = surface_height(ssd->ds);
     surface.stride     = -surface.width * 4;
     surface.mouse_mode = true;
     surface.flags      = 0;
     surface.type       = 0;
     surface.mem        = (uintptr_t)ssd->buf;
     surface.group_id   = MEMSLOT_GROUP_HOST;
 
     qemu_spice_create_primary_surface(ssd, 0, &surface, QXL_SYNC);
 }
 
 void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd)
 {
     qemu_spice_destroy_primary_surface(ssd, 0, QXL_SYNC);
 }
 
 void qemu_spice_display_init_common(SimpleSpiceDisplay *ssd)
 {
     qemu_mutex_init(&ssd->lock);
     QTAILQ_INIT(&ssd->updates);
     ssd->mouse_x = -1;
     ssd->mouse_y = -1;
     if (ssd->num_surfaces == 0) {
         ssd->num_surfaces = 1024;
     }
 }
 
 /* display listener callbacks */
 
 void qemu_spice_display_update(SimpleSpiceDisplay *ssd,
                                int x, int y, int w, int h)
 {
     QXLRect update_area;
 
     trace_qemu_spice_display_update(ssd->qxl.id, x, y, w, h);
     update_area.left = x,
     update_area.right = x + w;
     update_area.top = y;
     update_area.bottom = y + h;
 
     if (qemu_spice_rect_is_empty(&ssd->dirty)) {
         ssd->notify++;
     }
     qemu_spice_rect_union(&ssd->dirty, &update_area);
 }
 
 void qemu_spice_display_switch(SimpleSpiceDisplay *ssd,
                                DisplaySurface *surface)
 {
     SimpleSpiceUpdate *update;
     bool need_destroy;
 
     if (ssd->surface &&
         surface_width(surface) == pixman_image_get_width(ssd->surface) &&
         surface_height(surface) == pixman_image_get_height(ssd->surface) &&
         surface_format(surface) == pixman_image_get_format(ssd->surface)) {
         /* no-resize fast path: just swap backing store */
         trace_qemu_spice_display_surface(ssd->qxl.id,
                                          surface_width(surface),
                                          surface_height(surface),
                                          true);
         qemu_mutex_lock(&ssd->lock);
         ssd->ds = surface;
         pixman_image_unref(ssd->surface);
         ssd->surface = pixman_image_ref(ssd->ds->image);
         qemu_mutex_unlock(&ssd->lock);
         qemu_spice_display_update(ssd, 0, 0,
                                   surface_width(surface),
                                   surface_height(surface));
         return;
     }
 
     /* full mode switch */
     trace_qemu_spice_display_surface(ssd->qxl.id,
                                      surface_width(surface),
                                      surface_height(surface),
                                      false);
 
     memset(&ssd->dirty, 0, sizeof(ssd->dirty));
     if (ssd->surface) {
         pixman_image_unref(ssd->surface);
         ssd->surface = NULL;
         pixman_image_unref(ssd->mirror);
         ssd->mirror = NULL;
     }
 
     qemu_mutex_lock(&ssd->lock);
     need_destroy = (ssd->ds != NULL);
     ssd->ds = surface;
     while ((update = QTAILQ_FIRST(&ssd->updates)) != NULL) {
         QTAILQ_REMOVE(&ssd->updates, update, next);
         qemu_spice_destroy_update(ssd, update);
     }
     qemu_mutex_unlock(&ssd->lock);
     if (need_destroy) {
         qemu_spice_destroy_host_primary(ssd);
     }
     if (ssd->ds) {
         ssd->surface = pixman_image_ref(ssd->ds->image);
         ssd->mirror  = qemu_pixman_mirror_create(ssd->ds->format,
                                                  ssd->ds->image);
         qemu_spice_create_host_primary(ssd);
     }
 
     memset(&ssd->dirty, 0, sizeof(ssd->dirty));
     ssd->notify++;
 
     qemu_mutex_lock(&ssd->lock);
     if (ssd->cursor) {
         g_free(ssd->ptr_define);
         ssd->ptr_define = qemu_spice_create_cursor_update(ssd, ssd->cursor, 0);
     }
     qemu_mutex_unlock(&ssd->lock);
 }
 
 void qemu_spice_cursor_refresh_bh(void *opaque)
 {
     SimpleSpiceDisplay *ssd = opaque;
 
     qemu_mutex_lock(&ssd->lock);
     if (ssd->cursor) {
         QEMUCursor *c = ssd->cursor;
         assert(ssd->dcl.con);
         cursor_get(c);
         qemu_mutex_unlock(&ssd->lock);
         dpy_cursor_define(ssd->dcl.con, c);
         qemu_mutex_lock(&ssd->lock);
         cursor_put(c);
     }
 
     if (ssd->mouse_x != -1 && ssd->mouse_y != -1) {
         int x, y;
         assert(ssd->dcl.con);
         x = ssd->mouse_x;
         y = ssd->mouse_y;
         ssd->mouse_x = -1;
         ssd->mouse_y = -1;
         qemu_mutex_unlock(&ssd->lock);
         dpy_mouse_set(ssd->dcl.con, x, y, 1);
     } else {
         qemu_mutex_unlock(&ssd->lock);
     }
 }
 
 void qemu_spice_display_refresh(SimpleSpiceDisplay *ssd)
 {
     graphic_hw_update(ssd->dcl.con);
 
     WITH_QEMU_LOCK_GUARD(&ssd->lock) {
         if (QTAILQ_EMPTY(&ssd->updates) && ssd->ds) {
             qemu_spice_create_update(ssd);
             ssd->notify++;
         }
     }
 
     trace_qemu_spice_display_refresh(ssd->qxl.id, ssd->notify);
     if (ssd->notify) {
         ssd->notify = 0;
         qemu_spice_wakeup(ssd);
     }
 }
 
 /* spice display interface callbacks */
 
 #if SPICE_HAS_ATTACHED_WORKER
 static void interface_attached_worker(QXLInstance *sin)
 {
     /* nothing to do */
 }
 #else
 static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
 {
     /* nothing to do */
 }
 #endif
 
 static void interface_set_compression_level(QXLInstance *sin, int level)
 {
     /* nothing to do */
 }
 
 #if SPICE_NEEDS_SET_MM_TIME
 static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time)
 {
     /* nothing to do */
 }
 #endif
 
 static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
 {
     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
 
     info->memslot_gen_bits = MEMSLOT_GENERATION_BITS;
     info->memslot_id_bits  = MEMSLOT_SLOT_BITS;
     info->num_memslots = NUM_MEMSLOTS;
     info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
     info->internal_groupslot_id = 0;
     info->qxl_ram_size = 16 * 1024 * 1024;
     info->n_surfaces = ssd->num_surfaces;
 }
 
 static int interface_get_command(QXLInstance *sin, QXLCommandExt *ext)
 {
     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
     SimpleSpiceUpdate *update;
     int ret = false;
 
     qemu_mutex_lock(&ssd->lock);
     update = QTAILQ_FIRST(&ssd->updates);
     if (update != NULL) {
         QTAILQ_REMOVE(&ssd->updates, update, next);
         *ext = update->ext;
         ret = true;
     }
     qemu_mutex_unlock(&ssd->lock);
 
     return ret;
 }
 
 static int interface_req_cmd_notification(QXLInstance *sin)
 {
     return 1;
 }
 
 static void interface_release_resource(QXLInstance *sin,
                                        QXLReleaseInfoExt rext)
 {
     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
     SimpleSpiceUpdate *update;
     SimpleSpiceCursor *cursor;
     QXLCommandExt *ext;
 
     if (!rext.info) {
         return;
     }
 
     ext = (void *)(intptr_t)(rext.info->id);
     switch (ext->cmd.type) {
     case QXL_CMD_DRAW:
         update = container_of(ext, SimpleSpiceUpdate, ext);
         qemu_spice_destroy_update(ssd, update);
         break;
     case QXL_CMD_CURSOR:
         cursor = container_of(ext, SimpleSpiceCursor, ext);
         g_free(cursor);
         break;
     default:
         g_assert_not_reached();
     }
 }
 
 static int interface_get_cursor_command(QXLInstance *sin, QXLCommandExt *ext)
 {
     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
     int ret;
 
     QEMU_LOCK_GUARD(&ssd->lock);
     if (ssd->ptr_define) {
         *ext = ssd->ptr_define->ext;
         ssd->ptr_define = NULL;
         ret = true;
     } else if (ssd->ptr_move) {
         *ext = ssd->ptr_move->ext;
         ssd->ptr_move = NULL;
         ret = true;
     } else {
         ret = false;
     }
     return ret;
 }
 
 static int interface_req_cursor_notification(QXLInstance *sin)
 {
     return 1;
 }
 
 static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
 {
     fprintf(stderr, "%s: abort()\n", __func__);
     abort();
 }
 
 static int interface_flush_resources(QXLInstance *sin)
 {
     fprintf(stderr, "%s: abort()\n", __func__);
     abort();
     return 0;
 }
 
 static void interface_update_area_complete(QXLInstance *sin,
         uint32_t surface_id,
         QXLRect *dirty, uint32_t num_updated_rects)
 {
     /* should never be called, used in qxl native mode only */
     fprintf(stderr, "%s: abort()\n", __func__);
     abort();
 }
 
 /* called from spice server thread context only */
 static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
 {
     QXLCookie *cookie = (QXLCookie *)(uintptr_t)cookie_token;
 
     switch (cookie->type) {
 #ifdef HAVE_SPICE_GL
     case QXL_COOKIE_TYPE_GL_DRAW_DONE:
     {
         SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
         qemu_bh_schedule(ssd->gl_unblock_bh);
         break;
     }
     case QXL_COOKIE_TYPE_IO:
         if (cookie->io == QXL_IO_MONITORS_CONFIG_ASYNC) {
             g_free(cookie->u.data);
         }
         break;
 #endif
     default:
         /* should never be called, used in qxl native mode only */
         fprintf(stderr, "%s: abort()\n", __func__);
         abort();
     }
     g_free(cookie);
 }
 
 static void interface_set_client_capabilities(QXLInstance *sin,
                                               uint8_t client_present,
                                               uint8_t caps[58])
 {
     /* nothing to do */
 }
 
 static int interface_client_monitors_config(QXLInstance *sin,
                                             VDAgentMonitorsConfig *mc)
 {
     SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
     QemuUIInfo info;
     int head;
 
     if (!dpy_ui_info_supported(ssd->dcl.con)) {
         return 0; /* == not supported by guest */
     }
 
     if (!mc) {
         return 1;
     }
 
     info = *dpy_get_ui_info(ssd->dcl.con);
 
     head = qemu_console_get_index(ssd->dcl.con);
     if (mc->num_of_monitors > head) {
         info.width  = mc->monitors[head].width;
         info.height = mc->monitors[head].height;
 #if SPICE_SERVER_VERSION >= 0x000e04 /* release 0.14.4 */
         if (mc->flags & VD_AGENT_CONFIG_MONITORS_FLAG_PHYSICAL_SIZE) {
             VDAgentMonitorMM *mm = (void *)&mc->monitors[mc->num_of_monitors];
             info.width_mm = mm[head].width;
             info.height_mm = mm[head].height;
         }
 #endif
     }
 
     trace_qemu_spice_ui_info(ssd->qxl.id, info.width, info.height);
     dpy_set_ui_info(ssd->dcl.con, &info, false);
     return 1;
 }
 
 static const QXLInterface dpy_interface = {
     .base.type               = SPICE_INTERFACE_QXL,
     .base.description        = "qemu simple display",
     .base.major_version      = SPICE_INTERFACE_QXL_MAJOR,
     .base.minor_version      = SPICE_INTERFACE_QXL_MINOR,
 
 #if SPICE_HAS_ATTACHED_WORKER
     .attached_worker         = interface_attached_worker,
 #else
     .attache_worker          = interface_attach_worker,
 #endif
     .set_compression_level   = interface_set_compression_level,
 #if SPICE_NEEDS_SET_MM_TIME
     .set_mm_time             = interface_set_mm_time,
 #endif
     .get_init_info           = interface_get_init_info,
 
     /* the callbacks below are called from spice server thread context */
     .get_command             = interface_get_command,
     .req_cmd_notification    = interface_req_cmd_notification,
     .release_resource        = interface_release_resource,
     .get_cursor_command      = interface_get_cursor_command,
     .req_cursor_notification = interface_req_cursor_notification,
     .notify_update           = interface_notify_update,
     .flush_resources         = interface_flush_resources,
     .async_complete          = interface_async_complete,
     .update_area_complete    = interface_update_area_complete,
     .set_client_capabilities = interface_set_client_capabilities,
     .client_monitors_config  = interface_client_monitors_config,
 };
 
 static void display_update(DisplayChangeListener *dcl,
                            int x, int y, int w, int h)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
     qemu_spice_display_update(ssd, x, y, w, h);
 }
 
 static void display_switch(DisplayChangeListener *dcl,
                            DisplaySurface *surface)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
     qemu_spice_display_switch(ssd, surface);
 }
 
 static void display_refresh(DisplayChangeListener *dcl)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
     qemu_spice_display_refresh(ssd);
 }
 
 static void display_mouse_set(DisplayChangeListener *dcl,
                               int x, int y, int on)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 
     qemu_mutex_lock(&ssd->lock);
     ssd->ptr_x = x;
     ssd->ptr_y = y;
     g_free(ssd->ptr_move);
     ssd->ptr_move = qemu_spice_create_cursor_update(ssd, NULL, on);
     qemu_mutex_unlock(&ssd->lock);
     qemu_spice_wakeup(ssd);
 }
 
 static void display_mouse_define(DisplayChangeListener *dcl,
                                  QEMUCursor *c)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 
     qemu_mutex_lock(&ssd->lock);
     cursor_get(c);
     cursor_put(ssd->cursor);
     ssd->cursor = c;
     ssd->hot_x = c->hot_x;
     ssd->hot_y = c->hot_y;
     g_free(ssd->ptr_move);
     ssd->ptr_move = NULL;
     g_free(ssd->ptr_define);
     ssd->ptr_define = qemu_spice_create_cursor_update(ssd, c, 0);
     qemu_mutex_unlock(&ssd->lock);
     qemu_spice_wakeup(ssd);
 }
 
 static const DisplayChangeListenerOps display_listener_ops = {
     .dpy_name             = "spice",
     .dpy_gfx_update       = display_update,
     .dpy_gfx_switch       = display_switch,
     .dpy_gfx_check_format = qemu_pixman_check_format,
     .dpy_refresh          = display_refresh,
     .dpy_mouse_set        = display_mouse_set,
     .dpy_cursor_define    = display_mouse_define,
 };
 
 #ifdef HAVE_SPICE_GL
 
 static void qemu_spice_gl_monitor_config(SimpleSpiceDisplay *ssd,
                                          int x, int y, int w, int h)
 {
     QXLMonitorsConfig *config;
     QXLCookie *cookie;
 
     config = g_malloc0(sizeof(QXLMonitorsConfig) + sizeof(QXLHead));
     config->count = 1;
     config->max_allowed = 1;
     config->heads[0].x = x;
     config->heads[0].y = y;
     config->heads[0].width = w;
     config->heads[0].height = h;
     cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
                             QXL_IO_MONITORS_CONFIG_ASYNC);
     cookie->u.data = config;
 
     spice_qxl_monitors_config_async(&ssd->qxl,
                                     (uintptr_t)config,
                                     MEMSLOT_GROUP_HOST,
                                     (uintptr_t)cookie);
 }
 
 static void qemu_spice_gl_block(SimpleSpiceDisplay *ssd, bool block)
 {
     uint64_t timeout;
 
     if (block) {
         timeout = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
         timeout += 1000; /* one sec */
         timer_mod(ssd->gl_unblock_timer, timeout);
     } else {
         timer_del(ssd->gl_unblock_timer);
     }
     graphic_hw_gl_block(ssd->dcl.con, block);
 }
 
 static void qemu_spice_gl_unblock_bh(void *opaque)
 {
     SimpleSpiceDisplay *ssd = opaque;
 
     qemu_spice_gl_block(ssd, false);
 }
 
 static void qemu_spice_gl_block_timer(void *opaque)
 {
     warn_report("spice: no gl-draw-done within one second");
 }
 
 static void spice_gl_refresh(DisplayChangeListener *dcl)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
     uint64_t cookie;
 
     if (!ssd->ds || qemu_console_is_gl_blocked(ssd->dcl.con)) {
         return;
     }
 
     graphic_hw_update(dcl->con);
     if (ssd->gl_updates && ssd->have_surface) {
         qemu_spice_gl_block(ssd, true);
         glFlush();
         cookie = (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_GL_DRAW_DONE, 0);
         spice_qxl_gl_draw_async(&ssd->qxl, 0, 0,
                                 surface_width(ssd->ds),
                                 surface_height(ssd->ds),
                                 cookie);
         ssd->gl_updates = 0;
     }
 }
 
 static void spice_gl_update(DisplayChangeListener *dcl,
                             int x, int y, int w, int h)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 
     surface_gl_update_texture(ssd->gls, ssd->ds, x, y, w, h);
     ssd->gl_updates++;
 }
 
 static void spice_gl_switch(DisplayChangeListener *dcl,
                             struct DisplaySurface *new_surface)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
     EGLint stride, fourcc;
     int fd;
 
     if (ssd->ds) {
         surface_gl_destroy_texture(ssd->gls, ssd->ds);
     }
     ssd->ds = new_surface;
     if (ssd->ds) {
         surface_gl_create_texture(ssd->gls, ssd->ds);
         fd = egl_get_fd_for_texture(ssd->ds->texture,
                                     &stride, &fourcc,
                                     NULL);
         if (fd < 0) {
             surface_gl_destroy_texture(ssd->gls, ssd->ds);
             return;
         }
 
         trace_qemu_spice_gl_surface(ssd->qxl.id,
                                     surface_width(ssd->ds),
                                     surface_height(ssd->ds),
                                     fourcc);
 
         /* note: spice server will close the fd */
         spice_qxl_gl_scanout(&ssd->qxl, fd,
                              surface_width(ssd->ds),
                              surface_height(ssd->ds),
                              stride, fourcc, false);
         ssd->have_surface = true;
         ssd->have_scanout = false;
 
         qemu_spice_gl_monitor_config(ssd, 0, 0,
                                      surface_width(ssd->ds),
                                      surface_height(ssd->ds));
     }
 }
 
 static QEMUGLContext qemu_spice_gl_create_context(DisplayGLCtx *dgc,
                                                   QEMUGLParams *params)
 {
     eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
                    qemu_egl_rn_ctx);
     return qemu_egl_create_context(dgc, params);
 }
 
 static void qemu_spice_gl_scanout_disable(DisplayChangeListener *dcl)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 
     trace_qemu_spice_gl_scanout_disable(ssd->qxl.id);
     spice_qxl_gl_scanout(&ssd->qxl, -1, 0, 0, 0, 0, false);
     qemu_spice_gl_monitor_config(ssd, 0, 0, 0, 0);
     ssd->have_surface = false;
     ssd->have_scanout = false;
 }
 
 static void qemu_spice_gl_scanout_texture(DisplayChangeListener *dcl,
                                           uint32_t tex_id,
                                           bool y_0_top,
                                           uint32_t backing_width,
                                           uint32_t backing_height,
                                           uint32_t x, uint32_t y,
                                           uint32_t w, uint32_t h)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
     EGLint stride = 0, fourcc = 0;
     int fd = -1;
 
     assert(tex_id);
     fd = egl_get_fd_for_texture(tex_id, &stride, &fourcc, NULL);
     if (fd < 0) {
         fprintf(stderr, "%s: failed to get fd for texture\n", __func__);
         return;
     }
     trace_qemu_spice_gl_scanout_texture(ssd->qxl.id, w, h, fourcc);
 
     /* note: spice server will close the fd */
     spice_qxl_gl_scanout(&ssd->qxl, fd, backing_width, backing_height,
                          stride, fourcc, y_0_top);
     qemu_spice_gl_monitor_config(ssd, x, y, w, h);
     ssd->have_surface = false;
     ssd->have_scanout = true;
 }
 
 static void qemu_spice_gl_scanout_dmabuf(DisplayChangeListener *dcl,
                                          QemuDmaBuf *dmabuf)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 
     ssd->guest_dmabuf = dmabuf;
     ssd->guest_dmabuf_refresh = true;
 
     ssd->have_surface = false;
     ssd->have_scanout = true;
 }
 
 static void qemu_spice_gl_cursor_dmabuf(DisplayChangeListener *dcl,
                                         QemuDmaBuf *dmabuf, bool have_hot,
                                         uint32_t hot_x, uint32_t hot_y)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 
     ssd->have_hot = have_hot;
     ssd->hot_x = hot_x;
     ssd->hot_y = hot_y;
 
     trace_qemu_spice_gl_cursor(ssd->qxl.id, dmabuf != NULL, have_hot);
     if (dmabuf) {
         egl_dmabuf_import_texture(dmabuf);
         if (!dmabuf->texture) {
             return;
         }
         egl_fb_setup_for_tex(&ssd->cursor_fb, dmabuf->width, dmabuf->height,
                              dmabuf->texture, false);
     } else {
         egl_fb_destroy(&ssd->cursor_fb);
     }
 }
 
 static void qemu_spice_gl_cursor_position(DisplayChangeListener *dcl,
                                           uint32_t pos_x, uint32_t pos_y)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 
     qemu_mutex_lock(&ssd->lock);
     ssd->ptr_x = pos_x;
     ssd->ptr_y = pos_y;
     qemu_mutex_unlock(&ssd->lock);
 }
 
 static void qemu_spice_gl_release_dmabuf(DisplayChangeListener *dcl,
                                          QemuDmaBuf *dmabuf)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
 
     if (ssd->guest_dmabuf == dmabuf) {
         ssd->guest_dmabuf = NULL;
         ssd->guest_dmabuf_refresh = false;
     }
     egl_dmabuf_release_texture(dmabuf);
 }
 
 static void qemu_spice_gl_update(DisplayChangeListener *dcl,
                                  uint32_t x, uint32_t y, uint32_t w, uint32_t h)
 {
     SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
     EGLint stride = 0, fourcc = 0;
     bool render_cursor = false;
     bool y_0_top = false; /* FIXME */
     uint64_t cookie;
     int fd;
 
     if (!ssd->have_scanout) {
         return;
     }
 
     if (ssd->cursor_fb.texture) {
         render_cursor = true;
     }
     if (ssd->render_cursor != render_cursor) {
         ssd->render_cursor = render_cursor;
         ssd->guest_dmabuf_refresh = true;
         egl_fb_destroy(&ssd->blit_fb);
     }
 
     if (ssd->guest_dmabuf_refresh) {
         QemuDmaBuf *dmabuf = ssd->guest_dmabuf;
         if (render_cursor) {
             egl_dmabuf_import_texture(dmabuf);
             if (!dmabuf->texture) {
                 return;
             }
 
             /* source framebuffer */
             egl_fb_setup_for_tex(&ssd->guest_fb,
                                  dmabuf->width, dmabuf->height,
                                  dmabuf->texture, false);
 
             /* dest framebuffer */
             if (ssd->blit_fb.width  != dmabuf->width ||
                 ssd->blit_fb.height != dmabuf->height) {
                 trace_qemu_spice_gl_render_dmabuf(ssd->qxl.id, dmabuf->width,
                                                   dmabuf->height);
                 egl_fb_destroy(&ssd->blit_fb);
                 egl_fb_setup_new_tex(&ssd->blit_fb,
                                      dmabuf->width, dmabuf->height);
                 fd = egl_get_fd_for_texture(ssd->blit_fb.texture,
                                             &stride, &fourcc, NULL);
                 spice_qxl_gl_scanout(&ssd->qxl, fd,
                                      dmabuf->width, dmabuf->height,
                                      stride, fourcc, false);
             }
         } else {
             trace_qemu_spice_gl_forward_dmabuf(ssd->qxl.id,
                                                dmabuf->width, dmabuf->height);
             /* note: spice server will close the fd, so hand over a dup */
             spice_qxl_gl_scanout(&ssd->qxl, dup(dmabuf->fd),
                                  dmabuf->width, dmabuf->height,
                                  dmabuf->stride, dmabuf->fourcc,
                                  dmabuf->y0_top);
         }
         qemu_spice_gl_monitor_config(ssd, 0, 0, dmabuf->width, dmabuf->height);
         ssd->guest_dmabuf_refresh = false;
     }
 
     if (render_cursor) {
         int x, y;
         qemu_mutex_lock(&ssd->lock);
         x = ssd->ptr_x;
         y = ssd->ptr_y;
         qemu_mutex_unlock(&ssd->lock);
         egl_texture_blit(ssd->gls, &ssd->blit_fb, &ssd->guest_fb,
                          !y_0_top);
         egl_texture_blend(ssd->gls, &ssd->blit_fb, &ssd->cursor_fb,
                           !y_0_top, x, y, 1.0, 1.0);
         glFlush();
     }
 
     trace_qemu_spice_gl_update(ssd->qxl.id, w, h, x, y);
     qemu_spice_gl_block(ssd, true);
     glFlush();
     cookie = (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_GL_DRAW_DONE, 0);
     spice_qxl_gl_draw_async(&ssd->qxl, x, y, w, h, cookie);
 }
 
 static const DisplayChangeListenerOps display_listener_gl_ops = {
     .dpy_name                = "spice-egl",
     .dpy_gfx_update          = spice_gl_update,
     .dpy_gfx_switch          = spice_gl_switch,
     .dpy_gfx_check_format    = console_gl_check_format,
     .dpy_refresh             = spice_gl_refresh,
     .dpy_mouse_set           = display_mouse_set,
     .dpy_cursor_define       = display_mouse_define,
 
     .dpy_gl_scanout_disable  = qemu_spice_gl_scanout_disable,
     .dpy_gl_scanout_texture  = qemu_spice_gl_scanout_texture,
     .dpy_gl_scanout_dmabuf   = qemu_spice_gl_scanout_dmabuf,
     .dpy_gl_cursor_dmabuf    = qemu_spice_gl_cursor_dmabuf,
     .dpy_gl_cursor_position  = qemu_spice_gl_cursor_position,
     .dpy_gl_release_dmabuf   = qemu_spice_gl_release_dmabuf,
     .dpy_gl_update           = qemu_spice_gl_update,
 };
 
 static bool
 qemu_spice_is_compatible_dcl(DisplayGLCtx *dgc,
                              DisplayChangeListener *dcl)
 {
     return dcl->ops == &display_listener_gl_ops;
 }
 
 static const DisplayGLCtxOps gl_ctx_ops = {
     .dpy_gl_ctx_is_compatible_dcl = qemu_spice_is_compatible_dcl,
     .dpy_gl_ctx_create       = qemu_spice_gl_create_context,
     .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
     .dpy_gl_ctx_make_current = qemu_egl_make_context_current,
 };
 
 #endif /* HAVE_SPICE_GL */
 
 static void qemu_spice_display_init_one(QemuConsole *con)
 {
     SimpleSpiceDisplay *ssd = g_new0(SimpleSpiceDisplay, 1);
 
     qemu_spice_display_init_common(ssd);
 
     ssd->dcl.ops = &display_listener_ops;
 #ifdef HAVE_SPICE_GL
     if (spice_opengl) {
         ssd->dcl.ops = &display_listener_gl_ops;
         ssd->dgc.ops = &gl_ctx_ops;
         ssd->gl_unblock_bh = qemu_bh_new(qemu_spice_gl_unblock_bh, ssd);
         ssd->gl_unblock_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
                                              qemu_spice_gl_block_timer, ssd);
         ssd->gls = qemu_gl_init_shader();
         ssd->have_surface = false;
         ssd->have_scanout = false;
     }
 #endif
     ssd->dcl.con = con;
 
     ssd->qxl.base.sif = &dpy_interface.base;
     qemu_spice_add_display_interface(&ssd->qxl, con);
 
 #if SPICE_SERVER_VERSION >= 0x000e02 /* release 0.14.2 */
     Error *err = NULL;
     char device_address[256] = "";
     if (qemu_console_fill_device_address(con, device_address, 256, &err)) {
         spice_qxl_set_device_info(&ssd->qxl,
                                   device_address,
                                   qemu_console_get_head(con),
                                   1);
     } else {
         error_report_err(err);
     }
 #endif
 
     qemu_spice_create_host_memslot(ssd);
 
     if (spice_opengl) {
         qemu_console_set_display_gl_ctx(con, &ssd->dgc);
     }
     register_displaychangelistener(&ssd->dcl);
 }
 
 void qemu_spice_display_init(void)
 {
     QemuOptsList *olist = qemu_find_opts("spice");
     QemuOpts *opts = QTAILQ_FIRST(&olist->head);
     QemuConsole *spice_con, *con;
     const char *str;
     int i;
 
     str = qemu_opt_get(opts, "display");
     if (str) {
         int head = qemu_opt_get_number(opts, "head", 0);
         Error *err = NULL;
 
         spice_con = qemu_console_lookup_by_device_name(str, head, &err);
         if (err) {
             error_report("Failed to lookup display/head");
             exit(1);
         }
     } else {
         spice_con = NULL;
     }
 
     for (i = 0;; i++) {
         con = qemu_console_lookup_by_index(i);
         if (!con || !qemu_console_is_graphic(con)) {
             break;
         }
         if (qemu_spice_have_display_interface(con)) {
             continue;
         }
         if (spice_con != NULL && spice_con != con) {
             continue;
         }
         qemu_spice_display_init_one(con);
     }
 
     qemu_spice_display_init_done();
 }