[Spice-devel] [PATCH 7/9] worker: painfully move display_channel_add_drawable
Jonathon Jongsma
jjongsma at redhat.com
Tue Nov 17 12:05:03 PST 2015
Alternate version of this patch sent (and ACKed) in the earlier thread. see
http://lists.freedesktop.org/archives/spice-devel/2015-November/023703.html
On Tue, 2015-11-17 at 16:37 +0000, Frediano Ziglio wrote:
> From: Marc-André Lureau <marcandre.lureau at gmail.com>
>
> ---
> server/display-channel.c | 526 +++++++++++++++++++++++++++++++++++++++++++
> server/display-channel.h | 15 +-
> server/red_worker.c | 566 ++--------------------------------------------
> -
> server/red_worker.h | 1 +
> 4 files changed, 560 insertions(+), 548 deletions(-)
>
> diff --git a/server/display-channel.c b/server/display-channel.c
> index 1d5d8d3..baec460 100644
> --- a/server/display-channel.c
> +++ b/server/display-channel.c
> @@ -20,6 +20,21 @@
>
> #include "display-channel.h"
>
> +static stat_time_t display_channel_stat_now(DisplayChannel *display)
> +{
> +#ifdef RED_WORKER_STAT
> + RedWorker *worker = COMMON_CHANNEL(display)->worker;
> +
> + return stat_now(red_worker_get_clockid(worker));
> +
> +#else
> + return 0;
> +#endif
> +}
> +
> +#define stat_start(display, var) \
> + G_GNUC_UNUSED stat_time_t var = display_channel_stat_now((display));
> +
> void display_channel_compress_stats_reset(DisplayChannel *display)
> {
> spice_return_if_fail(display);
> @@ -406,3 +421,514 @@ bool display_channel_surface_has_canvas(DisplayChannel
> *display,
> {
> return display->surfaces[surface_id].context.canvas != NULL;
> }
> +
> +static void streams_update_visible_region(DisplayChannel *display, Drawable
> *drawable)
> +{
> + Ring *ring;
> + RingItem *item;
> + RingItem *dcc_ring_item, *next;
> + DisplayChannelClient *dcc;
> +
> + if (!red_channel_is_connected(RED_CHANNEL(display))) {
> + return;
> + }
> +
> + if (!is_primary_surface(display, drawable->surface_id)) {
> + return;
> + }
> +
> + ring = &display->streams;
> + item = ring_get_head(ring);
> +
> + while (item) {
> + Stream *stream = SPICE_CONTAINEROF(item, Stream, link);
> + StreamAgent *agent;
> +
> + item = ring_next(ring, item);
> +
> + if (stream->current == drawable) {
> + continue;
> + }
> +
> + FOREACH_DCC(display, dcc_ring_item, next, dcc) {
> + agent = &dcc->stream_agents[get_stream_id(display, stream)];
> +
> + if (region_intersects(&agent->vis_region, &drawable
> ->tree_item.base.rgn)) {
> + region_exclude(&agent->vis_region, &drawable
> ->tree_item.base.rgn);
> + region_exclude(&agent->clip, &drawable->tree_item.base.rgn);
> + dcc_add_stream_agent_clip(dcc, agent);
> + }
> + }
> + }
> +}
> +
> +
> +static void current_add_drawable(DisplayChannel *display,
> + Drawable *drawable, RingItem *pos)
> +{
> + RedSurface *surface;
> + uint32_t surface_id = drawable->surface_id;
> +
> + surface = &display->surfaces[surface_id];
> + ring_add_after(&drawable->tree_item.base.siblings_link, pos);
> + ring_add(&display->current_list, &drawable->list_link);
> + ring_add(&surface->current_list, &drawable->surface_list_link);
> + display->current_size++;
> + drawable->refs++;
> +}
> +
> +static int current_add_equal(DisplayChannel *display, DrawItem *item,
> TreeItem *other)
> +{
> + DrawItem *other_draw_item;
> + Drawable *drawable;
> + Drawable *other_drawable;
> +
> + if (other->type != TREE_ITEM_TYPE_DRAWABLE) {
> + return FALSE;
> + }
> + other_draw_item = (DrawItem *)other;
> +
> + if (item->shadow || other_draw_item->shadow || item->effect !=
> other_draw_item->effect) {
> + return FALSE;
> + }
> +
> + drawable = SPICE_CONTAINEROF(item, Drawable, tree_item);
> + other_drawable = SPICE_CONTAINEROF(other_draw_item, Drawable, tree_item);
> +
> + if (item->effect == QXL_EFFECT_OPAQUE) {
> + int add_after = !!other_drawable->stream &&
> + is_drawable_independent_from_surfaces(drawable);
> + stream_maintenance(display, drawable, other_drawable);
> + current_add_drawable(display, drawable, &other->siblings_link);
> + other_drawable->refs++;
> + current_remove_drawable(display, other_drawable);
> + if (add_after) {
> + red_pipes_add_drawable_after(display, drawable, other_drawable);
> + } else {
> + red_pipes_add_drawable(display, drawable);
> + }
> + red_pipes_remove_drawable(other_drawable);
> + display_channel_drawable_unref(display, other_drawable);
> + return TRUE;
> + }
> +
> + switch (item->effect) {
> + case QXL_EFFECT_REVERT_ON_DUP:
> + if (is_same_drawable(drawable, other_drawable)) {
> +
> + DisplayChannelClient *dcc;
> + DrawablePipeItem *dpi;
> + RingItem *worker_ring_item, *dpi_ring_item;
> +
> + other_drawable->refs++;
> + current_remove_drawable(display, other_drawable);
> +
> + /* sending the drawable to clients that already received
> + * (or will receive) other_drawable */
> + worker_ring_item = ring_get_head(&RED_CHANNEL(display)->clients);
> + dpi_ring_item = ring_get_head(&other_drawable->pipes);
> + /* dpi contains a sublist of dcc's, ordered the same */
> + while (worker_ring_item) {
> + dcc = SPICE_CONTAINEROF(worker_ring_item,
> DisplayChannelClient,
> + common.base.channel_link);
> + dpi = SPICE_CONTAINEROF(dpi_ring_item, DrawablePipeItem,
> base);
> + while (worker_ring_item && (!dpi || dcc != dpi->dcc)) {
> + dcc_add_drawable(dcc, drawable);
> + worker_ring_item = ring_next(&RED_CHANNEL(display)
> ->clients,
> + worker_ring_item);
> + dcc = SPICE_CONTAINEROF(worker_ring_item,
> DisplayChannelClient,
> + common.base.channel_link);
> + }
> +
> + if (dpi_ring_item) {
> + dpi_ring_item = ring_next(&other_drawable->pipes,
> dpi_ring_item);
> + }
> + if (worker_ring_item) {
> + worker_ring_item = ring_next(&RED_CHANNEL(display)
> ->clients,
> + worker_ring_item);
> + }
> + }
> + /* not sending other_drawable where possible */
> + red_pipes_remove_drawable(other_drawable);
> +
> + display_channel_drawable_unref(display, other_drawable);
> + return TRUE;
> + }
> + break;
> + case QXL_EFFECT_OPAQUE_BRUSH:
> + if (is_same_geometry(drawable, other_drawable)) {
> + current_add_drawable(display, drawable, &other->siblings_link);
> + red_pipes_remove_drawable(other_drawable);
> + current_remove_drawable(display, other_drawable);
> + red_pipes_add_drawable(display, drawable);
> + return TRUE;
> + }
> + break;
> + case QXL_EFFECT_NOP_ON_DUP:
> + if (is_same_drawable(drawable, other_drawable)) {
> + return TRUE;
> + }
> + break;
> + }
> + return FALSE;
> +}
> +
> +static void __exclude_region(DisplayChannel *display, Ring *ring, TreeItem
> *item, QRegion *rgn,
> + Ring **top_ring, Drawable *frame_candidate)
> +{
> + QRegion and_rgn;
> + stat_start(display, start_time);
> +
> + region_clone(&and_rgn, rgn);
> + region_and(&and_rgn, &item->rgn);
> + if (!region_is_empty(&and_rgn)) {
> + if (IS_DRAW_ITEM(item)) {
> + DrawItem *draw = (DrawItem *)item;
> +
> + if (draw->effect == QXL_EFFECT_OPAQUE) {
> + region_exclude(rgn, &and_rgn);
> + }
> +
> + if (draw->shadow) {
> + Shadow *shadow;
> + int32_t x = item->rgn.extents.x1;
> + int32_t y = item->rgn.extents.y1;
> +
> + region_exclude(&draw->base.rgn, &and_rgn);
> + shadow = draw->shadow;
> + region_offset(&and_rgn, shadow->base.rgn.extents.x1 - x,
> + shadow->base.rgn.extents.y1 - y);
> + region_exclude(&shadow->base.rgn, &and_rgn);
> + region_and(&and_rgn, &shadow->on_hold);
> + if (!region_is_empty(&and_rgn)) {
> + region_exclude(&shadow->on_hold, &and_rgn);
> + region_or(rgn, &and_rgn);
> + // in flat representation of current, shadow is always
> his owner next
> + if (!tree_item_contained_by((TreeItem*)shadow,
> *top_ring)) {
> + *top_ring =
> tree_item_container_items((TreeItem*)shadow, ring);
> + }
> + }
> + } else {
> + if (frame_candidate) {
> + Drawable *drawable = SPICE_CONTAINEROF(draw, Drawable,
> tree_item);
> + stream_maintenance(display, frame_candidate, drawable);
> + }
> + region_exclude(&draw->base.rgn, &and_rgn);
> + }
> + } else if (item->type == TREE_ITEM_TYPE_CONTAINER) {
> + region_exclude(&item->rgn, &and_rgn);
> +
> + if (region_is_empty(&item->rgn)) { //assume container removal
> will follow
> + Shadow *shadow;
> +
> + region_exclude(rgn, &and_rgn);
> + if ((shadow = tree_item_find_shadow(item))) {
> + region_or(rgn, &shadow->on_hold);
> + if (!tree_item_contained_by((TreeItem*)shadow,
> *top_ring)) {
> + *top_ring =
> tree_item_container_items((TreeItem*)shadow, ring);
> + }
> + }
> + }
> + } else {
> + Shadow *shadow;
> +
> + spice_assert(item->type == TREE_ITEM_TYPE_SHADOW);
> + shadow = (Shadow *)item;
> + region_exclude(rgn, &and_rgn);
> + region_or(&shadow->on_hold, &and_rgn);
> + }
> + }
> + region_destroy(&and_rgn);
> + stat_add(&display->__exclude_stat, start_time);
> +}
> +
> +static void exclude_region(DisplayChannel *display, Ring *ring, RingItem
> *ring_item,
> + QRegion *rgn, TreeItem **last, Drawable
> *frame_candidate)
> +{
> + Ring *top_ring;
> + stat_start(display, start_time);
> +
> + if (!ring_item) {
> + return;
> + }
> +
> + top_ring = ring;
> +
> + for (;;) {
> + TreeItem *now = SPICE_CONTAINEROF(ring_item, TreeItem,
> siblings_link);
> + Container *container = now->container;
> +
> + spice_assert(!region_is_empty(&now->rgn));
> +
> + if (region_intersects(rgn, &now->rgn)) {
> + __exclude_region(display, ring, now, rgn, &top_ring,
> frame_candidate);
> +
> + if (region_is_empty(&now->rgn)) {
> + spice_assert(now->type != TREE_ITEM_TYPE_SHADOW);
> + ring_item = now->siblings_link.prev;
> + current_remove(display, now);
> + if (last && *last == now) {
> + *last = (TreeItem *)ring_next(ring, ring_item);
> + }
> + } else if (now->type == TREE_ITEM_TYPE_CONTAINER) {
> + Container *container = (Container *)now;
> + if ((ring_item = ring_get_head(&container->items))) {
> + ring = &container->items;
> + spice_assert(((TreeItem *)ring_item)->container);
> + continue;
> + }
> + ring_item = &now->siblings_link;
> + }
> +
> + if (region_is_empty(rgn)) {
> + stat_add(&display->exclude_stat, start_time);
> + return;
> + }
> + }
> +
> + while ((last && *last == (TreeItem *)ring_item) ||
> + !(ring_item = ring_next(ring, ring_item))) {
> + if (ring == top_ring) {
> + stat_add(&display->exclude_stat, start_time);
> + return;
> + }
> + ring_item = &container->base.siblings_link;
> + container = container->base.container;
> + ring = (container) ? &container->items : top_ring;
> + }
> + }
> +}
> +
> +static int current_add_with_shadow(DisplayChannel *display, Ring *ring,
> Drawable *item)
> +{
> + stat_start(display, start_time);
> + ++display->add_with_shadow_count;
> +
> + RedDrawable *red_drawable = item->red_drawable;
> + SpicePoint delta = {
> + .x = red_drawable->u.copy_bits.src_pos.x - red_drawable->bbox.left,
> + .y = red_drawable->u.copy_bits.src_pos.y - red_drawable->bbox.top
> + };
> +
> + Shadow *shadow = shadow_new(&item->tree_item, &delta);
> + if (!shadow) {
> + stat_add(&display->add_stat, start_time);
> + return FALSE;
> + }
> + // item and his shadow must initially be placed in the same container.
> + // for now putting them on root.
> +
> + // only primary surface streams are supported
> + if (is_primary_surface(display, item->surface_id)) {
> + detach_streams_behind(display, &shadow->base.rgn, NULL);
> + }
> +
> + ring_add(ring, &shadow->base.siblings_link);
> + current_add_drawable(display, item, ring);
> + if (item->tree_item.effect == QXL_EFFECT_OPAQUE) {
> + QRegion exclude_rgn;
> + region_clone(&exclude_rgn, &item->tree_item.base.rgn);
> + exclude_region(display, ring, &shadow->base.siblings_link,
> &exclude_rgn, NULL, NULL);
> + region_destroy(&exclude_rgn);
> + streams_update_visible_region(display, item);
> + } else {
> + if (is_primary_surface(display, item->surface_id)) {
> + detach_streams_behind(display, &item->tree_item.base.rgn, item);
> + }
> + }
> + stat_add(&display->add_stat, start_time);
> + return TRUE;
> +}
> +
> +static int current_add(DisplayChannel *display, Ring *ring, Drawable
> *drawable)
> +{
> + DrawItem *item = &drawable->tree_item;
> + RingItem *now;
> + QRegion exclude_rgn;
> + RingItem *exclude_base = NULL;
> + stat_start(display, start_time);
> +
> + spice_assert(!region_is_empty(&item->base.rgn));
> + region_init(&exclude_rgn);
> + now = ring_next(ring, ring);
> +
> + while (now) {
> + TreeItem *sibling = SPICE_CONTAINEROF(now, TreeItem, siblings_link);
> + int test_res;
> +
> + if (!region_bounds_intersects(&item->base.rgn, &sibling->rgn)) {
> + now = ring_next(ring, now);
> + continue;
> + }
> + test_res = region_test(&item->base.rgn, &sibling->rgn,
> REGION_TEST_ALL);
> + if (!(test_res & REGION_TEST_SHARED)) {
> + now = ring_next(ring, now);
> + continue;
> + } else if (sibling->type != TREE_ITEM_TYPE_SHADOW) {
> + if (!(test_res & REGION_TEST_RIGHT_EXCLUSIVE) &&
> + !(test_res &
> REGION_TEST_LEFT_EXCLUSIVE) &&
> + current_add_equal(display,
> item, sibling)) {
> + stat_add(&display->add_stat, start_time);
> + return FALSE;
> + }
> +
> + if (!(test_res & REGION_TEST_RIGHT_EXCLUSIVE) && item->effect ==
> QXL_EFFECT_OPAQUE) {
> + Shadow *shadow;
> + int skip = now == exclude_base;
> +
> + if ((shadow = tree_item_find_shadow(sibling))) {
> + if (exclude_base) {
> + TreeItem *next = sibling;
> + exclude_region(display, ring, exclude_base,
> &exclude_rgn, &next, NULL);
> + if (next != sibling) {
> + now = next ? &next->siblings_link : NULL;
> + exclude_base = NULL;
> + continue;
> + }
> + }
> + region_or(&exclude_rgn, &shadow->on_hold);
> + }
> + now = now->prev;
> + current_remove(display, sibling);
> + now = ring_next(ring, now);
> + if (shadow || skip) {
> + exclude_base = now;
> + }
> + continue;
> + }
> +
> + if (!(test_res & REGION_TEST_LEFT_EXCLUSIVE) &&
> is_opaque_item(sibling)) {
> + Container *container;
> +
> + if (exclude_base) {
> + exclude_region(display, ring, exclude_base, &exclude_rgn,
> NULL, NULL);
> + region_clear(&exclude_rgn);
> + exclude_base = NULL;
> + }
> + if (sibling->type == TREE_ITEM_TYPE_CONTAINER) {
> + container = (Container *)sibling;
> + ring = &container->items;
> + item->base.container = container;
> + now = ring_next(ring, ring);
> + continue;
> + }
> + spice_assert(IS_DRAW_ITEM(sibling));
> + if (!DRAW_ITEM(sibling)->container_root) {
> + container = container_new(DRAW_ITEM(sibling));
> + if (!container) {
> + spice_warning("create new container failed");
> + region_destroy(&exclude_rgn);
> + return FALSE;
> + }
> + item->base.container = container;
> + ring = &container->items;
> + }
> + }
> + }
> + if (!exclude_base) {
> + exclude_base = now;
> + }
> + break;
> + }
> + if (item->effect == QXL_EFFECT_OPAQUE) {
> + region_or(&exclude_rgn, &item->base.rgn);
> + exclude_region(display, ring, exclude_base, &exclude_rgn, NULL,
> drawable);
> + stream_trace_update(display, drawable);
> + streams_update_visible_region(display, drawable);
> + /*
> + * Performing the insertion after exclude_region for
> + * safety (todo: Not sure if exclude_region can affect the drawable
> + * if it is added to the tree before calling exclude_region).
> + */
> + current_add_drawable(display, drawable, ring);
> + } else {
> + /*
> + * red_detach_streams_behind can affect the current tree since it may
> + * trigger calls to update_area. Thus, the drawable should be added
> to the tree
> + * before calling red_detach_streams_behind
> + */
> + current_add_drawable(display, drawable, ring);
> + if (is_primary_surface(display, drawable->surface_id)) {
> + detach_streams_behind(display, &drawable->tree_item.base.rgn,
> drawable);
> + }
> + }
> + region_destroy(&exclude_rgn);
> + stat_add(&display->add_stat, start_time);
> + return TRUE;
> +}
> +
> +static bool drawable_can_stream(DisplayChannel *display, Drawable *drawable)
> +{
> + RedDrawable *red_drawable = drawable->red_drawable;
> + SpiceImage *image;
> +
> + if (display->stream_video == SPICE_STREAM_VIDEO_OFF)
> + return FALSE;
> +
> + if (!is_primary_surface(display, drawable->surface_id))
> + return FALSE;
> +
> + if (drawable->tree_item.effect != QXL_EFFECT_OPAQUE ||
> + red_drawable->type != QXL_DRAW_COPY ||
> + red_drawable->u.copy.rop_descriptor != SPICE_ROPD_OP_PUT)
> + return FALSE;
> +
> + image = red_drawable->u.copy.src_bitmap;
> + if (image == NULL ||
> + image->descriptor.type != SPICE_IMAGE_TYPE_BITMAP)
> + return FALSE;
> +
> + if (display->stream_video == SPICE_STREAM_VIDEO_FILTER) {
> + SpiceRect* rect;
> + int size;
> +
> + rect = &drawable->red_drawable->u.copy.src_area;
> + size = (rect->right - rect->left) * (rect->bottom - rect->top);
> + if (size < RED_STREAM_MIN_SIZE)
> + return FALSE;
> + }
> +
> + return TRUE;
> +}
> +
> +void display_channel_print_stats(DisplayChannel *display)
> +{
> +#ifdef RED_WORKER_STAT
> + stat_time_t total = display->add_stat.total;
> + spice_info("add with shadow count %u",
> + display->add_with_shadow_count);
> + display->add_with_shadow_count = 0;
> + spice_info("add[%u] %f exclude[%u] %f __exclude[%u] %f",
> + display->add_stat.count,
> + stat_cpu_time_to_sec(total),
> + display->exclude_stat.count,
> + stat_cpu_time_to_sec(display->exclude_stat.total),
> + display->__exclude_stat.count,
> + stat_cpu_time_to_sec(display->__exclude_stat.total));
> + spice_info("add %f%% exclude %f%% exclude2 %f%% __exclude %f%%",
> + (double)(total - display->exclude_stat.total) / total * 100,
> + (double)(display->exclude_stat.total) / total * 100,
> + (double)(display->exclude_stat.total -
> + display->__exclude_stat.total) / display
> ->exclude_stat.total * 100,
> + (double)(display->__exclude_stat.total) / display
> ->exclude_stat.total * 100);
> + stat_reset(&display->add_stat);
> + stat_reset(&display->exclude_stat);
> + stat_reset(&display->__exclude_stat);
> +#endif
> +}
> +
> +int display_channel_add_drawable(DisplayChannel *display, Drawable *drawable)
> +{
> + int ret = FALSE, surface_id = drawable->surface_id;
> + RedDrawable *red_drawable = drawable->red_drawable;
> + Ring *ring = &display->surfaces[surface_id].current;
> +
> + if (has_shadow(red_drawable)) {
> + ret = current_add_with_shadow(display, ring, drawable);
> + } else {
> + drawable->streamable = drawable_can_stream(display, drawable);
> + ret = current_add(display, ring, drawable);
> + }
> +
> + return ret;
> +}
> diff --git a/server/display-channel.h b/server/display-channel.h
> index 26b4e4e..a1e5947 100644
> --- a/server/display-channel.h
> +++ b/server/display-channel.h
> @@ -364,12 +364,12 @@ struct DisplayChannel {
> RedCompressBuf *free_compress_bufs;
>
> /* TODO: some day unify this, make it more runtime.. */
> + uint32_t add_count;
> + uint32_t add_with_shadow_count;
> #ifdef RED_WORKER_STAT
> stat_info_t add_stat;
> stat_info_t exclude_stat;
> stat_info_t __exclude_stat;
> - uint32_t add_count;
> - uint32_t add_with_shadow_count;
> #endif
> #ifdef RED_STATISTICS
> uint64_t *cache_hits_counter;
> @@ -423,6 +423,8 @@ void display_channel_surface_unref
> (DisplayCha
> bool display_channel_surface_has_canvas
> (DisplayChannel *display,
>
> uint32_t surface_id);
> void display_channel_show_tree
> (DisplayChannel *display);
> +int display_channel_add_drawable
> (DisplayChannel *display,
> +
> Drawable *drawable);
>
> static inline int is_equal_path(SpicePath *path1, SpicePath *path2)
> {
> @@ -539,4 +541,13 @@ static inline void region_add_clip_rects(QRegion *rgn,
> SpiceClipRects *data)
> }
> }
>
> +void red_pipes_add_drawable(DisplayChannel *display, Drawable *drawable);
> +void current_remove_drawable(DisplayChannel *display, Drawable *item);
> +void red_pipes_add_drawable_after(DisplayChannel *display,
> + Drawable *drawable, Drawable *pos_after);
> +void red_pipes_remove_drawable(Drawable *drawable);
> +void dcc_add_drawable(DisplayChannelClient *dcc, Drawable *drawable);
> +void current_remove(DisplayChannel *display, TreeItem *item);
> +void detach_streams_behind(DisplayChannel *display, QRegion *region, Drawable
> *drawable);
> +
> #endif /* DISPLAY_CHANNEL_H_ */
> diff --git a/server/red_worker.c b/server/red_worker.c
> index 1c2ab67..5b14836 100644
> --- a/server/red_worker.c
> +++ b/server/red_worker.c
> @@ -492,7 +492,7 @@ static int cursor_is_connected(RedWorker *worker)
> red_channel_is_connected(RED_CHANNEL(worker->cursor_channel));
> }
>
> -static void dcc_add_drawable(DisplayChannelClient *dcc, Drawable *drawable)
> +void dcc_add_drawable(DisplayChannelClient *dcc, Drawable *drawable)
> {
> DrawablePipeItem *dpi;
>
> @@ -501,7 +501,7 @@ static void dcc_add_drawable(DisplayChannelClient *dcc,
> Drawable *drawable)
> red_channel_client_pipe_add(RED_CHANNEL_CLIENT(dcc), &dpi
> ->dpi_pipe_item);
> }
>
> -static void red_pipes_add_drawable(DisplayChannel *display, Drawable
> *drawable)
> +void red_pipes_add_drawable(DisplayChannel *display, Drawable *drawable)
> {
> DisplayChannelClient *dcc;
> RingItem *dcc_ring_item, *next;
> @@ -524,8 +524,8 @@ static void dcc_add_drawable_to_tail(DisplayChannelClient
> *dcc, Drawable *drawab
> red_channel_client_pipe_add_tail(RED_CHANNEL_CLIENT(dcc), &dpi
> ->dpi_pipe_item);
> }
>
> -static inline void red_pipes_add_drawable_after(DisplayChannel *display,
> - Drawable *drawable, Drawable
> *pos_after)
> +void red_pipes_add_drawable_after(DisplayChannel *display,
> + Drawable *drawable, Drawable *pos_after)
> {
> DrawablePipeItem *dpi, *dpi_pos_after;
> RingItem *dpi_link, *dpi_next;
> @@ -571,7 +571,7 @@ static inline PipeItem
> *red_pipe_get_tail(DisplayChannelClient *dcc)
> return (PipeItem*)ring_get_tail(&RED_CHANNEL_CLIENT(dcc)->pipe);
> }
>
> -static inline void red_pipes_remove_drawable(Drawable *drawable)
> +void red_pipes_remove_drawable(Drawable *drawable)
> {
> DrawablePipeItem *dpi;
> RingItem *item, *next;
> @@ -816,8 +816,9 @@ static void red_flush_source_surfaces(DisplayChannel
> *display, Drawable *drawabl
> }
> }
>
> -static inline void current_remove_drawable(DisplayChannel *display, Drawable
> *item)
> +void current_remove_drawable(DisplayChannel *display, Drawable *item)
> {
> + /* todo: move all to unref? */
> display_stream_trace_add_drawable(display, item);
> draw_item_remove_shadow(&item->tree_item);
> ring_remove(&item->tree_item.base.siblings_link);
> @@ -827,13 +828,7 @@ static inline void current_remove_drawable(DisplayChannel
> *display, Drawable *it
> display->current_size--;
> }
>
> -static void remove_drawable(DisplayChannel *display, Drawable *drawable)
> -{
> - red_pipes_remove_drawable(drawable);
> - current_remove_drawable(display, drawable);
> -}
> -
> -static inline void current_remove(DisplayChannel *display, TreeItem *item)
> +void current_remove(DisplayChannel *display, TreeItem *item)
> {
> TreeItem *now = item;
>
> @@ -843,8 +838,10 @@ static inline void current_remove(DisplayChannel
> *display, TreeItem *item)
> RingItem *ring_item;
>
> if (now->type == TREE_ITEM_TYPE_DRAWABLE) {
> + Drawable *drawable = SPICE_CONTAINEROF(now, Drawable, tree_item);
> ring_item = now->siblings_link.prev;
> - remove_drawable(display, SPICE_CONTAINEROF(now, Drawable,
> tree_item));
> + red_pipes_remove_drawable(drawable);
> + current_remove_drawable(display, drawable);
> } else {
> Container *container = (Container *)now;
>
> @@ -975,152 +972,6 @@ static void
> red_clear_surface_drawables_from_pipes(DisplayChannel *display,
> }
> }
>
> -static void __exclude_region(DisplayChannel *display, Ring *ring, TreeItem
> *item, QRegion *rgn,
> - Ring **top_ring, Drawable *frame_candidate)
> -{
> - QRegion and_rgn;
> -#ifdef RED_WORKER_STAT
> - RedWorker *worker = COMMON_CHANNEL(display)->worker;
> - stat_time_t start_time = stat_now(worker->clockid);
> -#endif
> -
> - region_clone(&and_rgn, rgn);
> - region_and(&and_rgn, &item->rgn);
> - if (!region_is_empty(&and_rgn)) {
> - if (IS_DRAW_ITEM(item)) {
> - DrawItem *draw = (DrawItem *)item;
> -
> - if (draw->effect == QXL_EFFECT_OPAQUE) {
> - region_exclude(rgn, &and_rgn);
> - }
> -
> - if (draw->shadow) {
> - Shadow *shadow;
> - int32_t x = item->rgn.extents.x1;
> - int32_t y = item->rgn.extents.y1;
> -
> - region_exclude(&draw->base.rgn, &and_rgn);
> - shadow = draw->shadow;
> - region_offset(&and_rgn, shadow->base.rgn.extents.x1 - x,
> - shadow->base.rgn.extents.y1 - y);
> - region_exclude(&shadow->base.rgn, &and_rgn);
> - region_and(&and_rgn, &shadow->on_hold);
> - if (!region_is_empty(&and_rgn)) {
> - region_exclude(&shadow->on_hold, &and_rgn);
> - region_or(rgn, &and_rgn);
> - // in flat representation of current, shadow is always
> his owner next
> - if (!tree_item_contained_by((TreeItem*)shadow,
> *top_ring)) {
> - *top_ring =
> tree_item_container_items((TreeItem*)shadow, ring);
> - }
> - }
> - } else {
> - if (frame_candidate) {
> - Drawable *drawable = SPICE_CONTAINEROF(draw, Drawable,
> tree_item);
> - stream_maintenance(display, frame_candidate, drawable);
> - }
> - region_exclude(&draw->base.rgn, &and_rgn);
> - }
> - } else if (item->type == TREE_ITEM_TYPE_CONTAINER) {
> - region_exclude(&item->rgn, &and_rgn);
> -
> - if (region_is_empty(&item->rgn)) { //assume container removal
> will follow
> - Shadow *shadow;
> -
> - region_exclude(rgn, &and_rgn);
> - if ((shadow = tree_item_find_shadow(item))) {
> - region_or(rgn, &shadow->on_hold);
> - if (!tree_item_contained_by((TreeItem*)shadow,
> *top_ring)) {
> - *top_ring =
> tree_item_container_items((TreeItem*)shadow, ring);
> - }
> - }
> - }
> - } else {
> - Shadow *shadow;
> -
> - spice_assert(item->type == TREE_ITEM_TYPE_SHADOW);
> - shadow = (Shadow *)item;
> - region_exclude(rgn, &and_rgn);
> - region_or(&shadow->on_hold, &and_rgn);
> - }
> - }
> - region_destroy(&and_rgn);
> - stat_add(&display->__exclude_stat, start_time);
> -}
> -
> -static void exclude_region(DisplayChannel *display, Ring *ring, RingItem
> *ring_item,
> - QRegion *rgn, TreeItem **last, Drawable
> *frame_candidate)
> -{
> -#ifdef RED_WORKER_STAT
> - RedWorker *worker = COMMON_CHANNEL(display)->worker;
> - stat_time_t start_time = stat_now(worker->clockid);
> -#endif
> - Ring *top_ring;
> -
> - if (!ring_item) {
> - return;
> - }
> -
> - top_ring = ring;
> -
> - for (;;) {
> - TreeItem *now = SPICE_CONTAINEROF(ring_item, TreeItem,
> siblings_link);
> - Container *container = now->container;
> -
> - spice_assert(!region_is_empty(&now->rgn));
> -
> - if (region_intersects(rgn, &now->rgn)) {
> - __exclude_region(display, ring, now, rgn, &top_ring,
> frame_candidate);
> -
> - if (region_is_empty(&now->rgn)) {
> - spice_assert(now->type != TREE_ITEM_TYPE_SHADOW);
> - ring_item = now->siblings_link.prev;
> - current_remove(display, now);
> - if (last && *last == now) {
> - *last = (TreeItem *)ring_next(ring, ring_item);
> - }
> - } else if (now->type == TREE_ITEM_TYPE_CONTAINER) {
> - Container *container = (Container *)now;
> - if ((ring_item = ring_get_head(&container->items))) {
> - ring = &container->items;
> - spice_assert(((TreeItem *)ring_item)->container);
> - continue;
> - }
> - ring_item = &now->siblings_link;
> - }
> -
> - if (region_is_empty(rgn)) {
> - stat_add(&display->exclude_stat, start_time);
> - return;
> - }
> - }
> -
> - while ((last && *last == (TreeItem *)ring_item) ||
> - !(ring_item = ring_next(ring, ring_item))) {
> - if (ring == top_ring) {
> - stat_add(&display->exclude_stat, start_time);
> - return;
> - }
> - ring_item = &container->base.siblings_link;
> - container = container->base.container;
> - ring = (container) ? &container->items : top_ring;
> - }
> - }
> -}
> -
> -static void current_add_drawable(DisplayChannel *display,
> - Drawable *drawable, RingItem *pos)
> -{
> - RedSurface *surface;
> - uint32_t surface_id = drawable->surface_id;
> -
> - surface = &display->surfaces[surface_id];
> - ring_add_after(&drawable->tree_item.base.siblings_link, pos);
> - ring_add(&display->current_list, &drawable->list_link);
> - ring_add(&surface->current_list, &drawable->surface_list_link);
> - display->current_size++;
> - drawable->refs++;
> -}
> -
> void detach_stream(DisplayChannel *display, Stream *stream,
> int detach_sized)
> {
> @@ -1243,7 +1094,7 @@ static void detach_stream_gracefully(DisplayChannel
> *display, Stream *stream,
> * involves sending an upgrade image to the client, this drawable
> won't be rendered
> * (see dcc_detach_stream_gracefully).
> */
> -static void detach_streams_behind(DisplayChannel *display, QRegion *region,
> Drawable *drawable)
> +void detach_streams_behind(DisplayChannel *display, QRegion *region, Drawable
> *drawable)
> {
> Ring *ring = &display->streams;
> RingItem *item = ring_get_head(ring);
> @@ -1276,46 +1127,6 @@ static void detach_streams_behind(DisplayChannel
> *display, QRegion *region, Draw
> }
> }
>
> -static void streams_update_visible_region(DisplayChannel *display, Drawable
> *drawable)
> -{
> - Ring *ring;
> - RingItem *item;
> - RingItem *dcc_ring_item, *next;
> - DisplayChannelClient *dcc;
> -
> - if (!red_channel_is_connected(RED_CHANNEL(display))) {
> - return;
> - }
> -
> - if (!is_primary_surface(display, drawable->surface_id)) {
> - return;
> - }
> -
> - ring = &display->streams;
> - item = ring_get_head(ring);
> -
> - while (item) {
> - Stream *stream = SPICE_CONTAINEROF(item, Stream, link);
> - StreamAgent *agent;
> -
> - item = ring_next(ring, item);
> -
> - if (stream->current == drawable) {
> - continue;
> - }
> -
> - FOREACH_DCC(display, dcc_ring_item, next, dcc) {
> - agent = &dcc->stream_agents[get_stream_id(display, stream)];
> -
> - if (region_intersects(&agent->vis_region, &drawable
> ->tree_item.base.rgn)) {
> - region_exclude(&agent->vis_region, &drawable
> ->tree_item.base.rgn);
> - region_exclude(&agent->clip, &drawable->tree_item.base.rgn);
> - dcc_add_stream_agent_clip(dcc, agent);
> - }
> - }
> - }
> -}
> -
> static void display_channel_streams_timeout(DisplayChannel *display)
> {
> Ring *ring = &display->streams;
> @@ -1377,350 +1188,6 @@ static void
> dcc_destroy_stream_agents(DisplayChannelClient *dcc)
> }
> }
>
> -static inline int red_current_add_equal(DisplayChannel *display, DrawItem
> *item, TreeItem *other)
> -{
> - DrawItem *other_draw_item;
> - Drawable *drawable;
> - Drawable *other_drawable;
> -
> - if (other->type != TREE_ITEM_TYPE_DRAWABLE) {
> - return FALSE;
> - }
> - other_draw_item = (DrawItem *)other;
> -
> - if (item->shadow || other_draw_item->shadow || item->effect !=
> other_draw_item->effect) {
> - return FALSE;
> - }
> -
> - drawable = SPICE_CONTAINEROF(item, Drawable, tree_item);
> - other_drawable = SPICE_CONTAINEROF(other_draw_item, Drawable, tree_item);
> -
> - if (item->effect == QXL_EFFECT_OPAQUE) {
> - int add_after = !!other_drawable->stream &&
> - is_drawable_independent_from_surfaces(drawable);
> - stream_maintenance(display, drawable, other_drawable);
> - current_add_drawable(display, drawable, &other->siblings_link);
> - other_drawable->refs++;
> - current_remove_drawable(display, other_drawable);
> - if (add_after) {
> - red_pipes_add_drawable_after(display, drawable, other_drawable);
> - } else {
> - red_pipes_add_drawable(display, drawable);
> - }
> - red_pipes_remove_drawable(other_drawable);
> - display_channel_drawable_unref(display, other_drawable);
> - return TRUE;
> - }
> -
> - switch (item->effect) {
> - case QXL_EFFECT_REVERT_ON_DUP:
> - if (is_same_drawable(drawable, other_drawable)) {
> -
> - DisplayChannelClient *dcc;
> - DrawablePipeItem *dpi;
> - RingItem *worker_ring_item, *dpi_ring_item;
> -
> - other_drawable->refs++;
> - current_remove_drawable(display, other_drawable);
> -
> - /* sending the drawable to clients that already received
> - * (or will receive) other_drawable */
> - worker_ring_item = ring_get_head(&RED_CHANNEL(display)->clients);
> - dpi_ring_item = ring_get_head(&other_drawable->pipes);
> - /* dpi contains a sublist of dcc's, ordered the same */
> - while (worker_ring_item) {
> - dcc = SPICE_CONTAINEROF(worker_ring_item,
> DisplayChannelClient,
> - common.base.channel_link);
> - dpi = SPICE_CONTAINEROF(dpi_ring_item, DrawablePipeItem,
> base);
> - while (worker_ring_item && (!dpi || dcc != dpi->dcc)) {
> - dcc_add_drawable(dcc, drawable);
> - worker_ring_item = ring_next(&RED_CHANNEL(display)
> ->clients,
> - worker_ring_item);
> - dcc = SPICE_CONTAINEROF(worker_ring_item,
> DisplayChannelClient,
> - common.base.channel_link);
> - }
> -
> - if (dpi_ring_item) {
> - dpi_ring_item = ring_next(&other_drawable->pipes,
> dpi_ring_item);
> - }
> - if (worker_ring_item) {
> - worker_ring_item = ring_next(&RED_CHANNEL(display)
> ->clients,
> - worker_ring_item);
> - }
> - }
> - /* not sending other_drawable where possible */
> - red_pipes_remove_drawable(other_drawable);
> -
> - display_channel_drawable_unref(display, other_drawable);
> - return TRUE;
> - }
> - break;
> - case QXL_EFFECT_OPAQUE_BRUSH:
> - if (is_same_geometry(drawable, other_drawable)) {
> - current_add_drawable(display, drawable, &other->siblings_link);
> - remove_drawable(display, other_drawable);
> - red_pipes_add_drawable(display, drawable);
> - return TRUE;
> - }
> - break;
> - case QXL_EFFECT_NOP_ON_DUP:
> - if (is_same_drawable(drawable, other_drawable)) {
> - return TRUE;
> - }
> - break;
> - }
> - return FALSE;
> -}
> -
> -static int current_add(DisplayChannel *display, Ring *ring, Drawable
> *drawable)
> -{
> - DrawItem *item = &drawable->tree_item;
> -#ifdef RED_WORKER_STAT
> - RedWorker *worker = COMMON_CHANNEL(display)->worker;
> - stat_time_t start_time = stat_now(worker->clockid);
> -#endif
> - RingItem *now;
> - QRegion exclude_rgn;
> - RingItem *exclude_base = NULL;
> -
> - spice_assert(!region_is_empty(&item->base.rgn));
> - region_init(&exclude_rgn);
> - now = ring_next(ring, ring);
> -
> - while (now) {
> - TreeItem *sibling = SPICE_CONTAINEROF(now, TreeItem, siblings_link);
> - int test_res;
> -
> - if (!region_bounds_intersects(&item->base.rgn, &sibling->rgn)) {
> - now = ring_next(ring, now);
> - continue;
> - }
> - test_res = region_test(&item->base.rgn, &sibling->rgn,
> REGION_TEST_ALL);
> - if (!(test_res & REGION_TEST_SHARED)) {
> - now = ring_next(ring, now);
> - continue;
> - } else if (sibling->type != TREE_ITEM_TYPE_SHADOW) {
> - if (!(test_res & REGION_TEST_RIGHT_EXCLUSIVE) &&
> - !(test_res &
> REGION_TEST_LEFT_EXCLUSIVE) &&
> -
> red_current_add_equal(display, item, sibling)) {
> - stat_add(&display->add_stat, start_time);
> - return FALSE;
> - }
> -
> - if (!(test_res & REGION_TEST_RIGHT_EXCLUSIVE) && item->effect ==
> QXL_EFFECT_OPAQUE) {
> - Shadow *shadow;
> - int skip = now == exclude_base;
> -
> - if ((shadow = tree_item_find_shadow(sibling))) {
> - if (exclude_base) {
> - TreeItem *next = sibling;
> - exclude_region(display, ring, exclude_base,
> &exclude_rgn, &next, NULL);
> - if (next != sibling) {
> - now = next ? &next->siblings_link : NULL;
> - exclude_base = NULL;
> - continue;
> - }
> - }
> - region_or(&exclude_rgn, &shadow->on_hold);
> - }
> - now = now->prev;
> - current_remove(display, sibling);
> - now = ring_next(ring, now);
> - if (shadow || skip) {
> - exclude_base = now;
> - }
> - continue;
> - }
> -
> - if (!(test_res & REGION_TEST_LEFT_EXCLUSIVE) &&
> is_opaque_item(sibling)) {
> - Container *container;
> -
> - if (exclude_base) {
> - exclude_region(display, ring, exclude_base, &exclude_rgn,
> NULL, NULL);
> - region_clear(&exclude_rgn);
> - exclude_base = NULL;
> - }
> - if (sibling->type == TREE_ITEM_TYPE_CONTAINER) {
> - container = (Container *)sibling;
> - ring = &container->items;
> - item->base.container = container;
> - now = ring_next(ring, ring);
> - continue;
> - }
> - spice_assert(IS_DRAW_ITEM(sibling));
> - if (!DRAW_ITEM(sibling)->container_root) {
> - container = container_new(DRAW_ITEM(sibling));
> - if (!container) {
> - spice_warning("create new container failed");
> - region_destroy(&exclude_rgn);
> - return FALSE;
> - }
> - item->base.container = container;
> - ring = &container->items;
> - }
> - }
> - }
> - if (!exclude_base) {
> - exclude_base = now;
> - }
> - break;
> - }
> - if (item->effect == QXL_EFFECT_OPAQUE) {
> - region_or(&exclude_rgn, &item->base.rgn);
> - exclude_region(display, ring, exclude_base, &exclude_rgn, NULL,
> drawable);
> - stream_trace_update(display, drawable);
> - streams_update_visible_region(display, drawable);
> - /*
> - * Performing the insertion after exclude_region for
> - * safety (todo: Not sure if exclude_region can affect the drawable
> - * if it is added to the tree before calling exclude_region).
> - */
> - current_add_drawable(display, drawable, ring);
> - } else {
> - /*
> - * red_detach_streams_behind can affect the current tree since it may
> - * trigger calls to update_area. Thus, the drawable should be added
> to the tree
> - * before calling red_detach_streams_behind
> - */
> - current_add_drawable(display, drawable, ring);
> - if (is_primary_surface(display, drawable->surface_id)) {
> - detach_streams_behind(display, &drawable->tree_item.base.rgn,
> drawable);
> - }
> - }
> - region_destroy(&exclude_rgn);
> - stat_add(&display->add_stat, start_time);
> - return TRUE;
> -}
> -
> -static int current_add_with_shadow(DisplayChannel *display, Ring *ring,
> Drawable *item)
> -{
> -#ifdef RED_WORKER_STAT
> - RedWorker *worker = COMMON_CHANNEL(display)->worker;
> - stat_time_t start_time = stat_now(worker->clockid);
> - ++display->add_with_shadow_count;
> -#endif
> -
> - RedDrawable *red_drawable = item->red_drawable;
> - SpicePoint delta = {
> - .x = red_drawable->u.copy_bits.src_pos.x - red_drawable->bbox.left,
> - .y = red_drawable->u.copy_bits.src_pos.y - red_drawable->bbox.top
> - };
> -
> - Shadow *shadow = shadow_new(&item->tree_item, &delta);
> - if (!shadow) {
> - stat_add(&display->add_stat, start_time);
> - return FALSE;
> - }
> - // item and his shadow must initially be placed in the same container.
> - // for now putting them on root.
> -
> - // only primary surface streams are supported
> - if (is_primary_surface(display, item->surface_id)) {
> - detach_streams_behind(display, &shadow->base.rgn, NULL);
> - }
> -
> - ring_add(ring, &shadow->base.siblings_link);
> - current_add_drawable(display, item, ring);
> - if (item->tree_item.effect == QXL_EFFECT_OPAQUE) {
> - QRegion exclude_rgn;
> - region_clone(&exclude_rgn, &item->tree_item.base.rgn);
> - exclude_region(display, ring, &shadow->base.siblings_link,
> &exclude_rgn, NULL, NULL);
> - region_destroy(&exclude_rgn);
> - streams_update_visible_region(display, item);
> - } else {
> - if (is_primary_surface(display, item->surface_id)) {
> - detach_streams_behind(display, &item->tree_item.base.rgn, item);
> - }
> - }
> - stat_add(&display->add_stat, start_time);
> - return TRUE;
> -}
> -
> -static void drawable_update_streamable(DisplayChannel *display, Drawable
> *drawable)
> -{
> - RedDrawable *red_drawable = drawable->red_drawable;
> - SpiceImage *image;
> -
> - if (display->stream_video == SPICE_STREAM_VIDEO_OFF) {
> - return;
> - }
> -
> - if (!is_primary_surface(display, drawable->surface_id)) {
> - return;
> - }
> -
> - if (drawable->tree_item.effect != QXL_EFFECT_OPAQUE ||
> - red_drawable->type != QXL_DRAW_COPY ||
> - red_drawable->u.copy.rop_descriptor != SPICE_ROPD_OP_PUT) {
> - return;
> - }
> -
> - image = red_drawable->u.copy.src_bitmap;
> - if (image == NULL ||
> - image->descriptor.type != SPICE_IMAGE_TYPE_BITMAP) {
> - return;
> - }
> -
> - if (display->stream_video == SPICE_STREAM_VIDEO_FILTER) {
> - SpiceRect* rect;
> - int size;
> -
> - rect = &drawable->red_drawable->u.copy.src_area;
> - size = (rect->right - rect->left) * (rect->bottom - rect->top);
> - if (size < RED_STREAM_MIN_SIZE) {
> - return;
> - }
> - }
> -
> - drawable->streamable = TRUE;
> -}
> -
> -void print_stats(DisplayChannel *display)
> -{
> -#ifdef RED_WORKER_STAT
> - stat_time_t total = display->add_stat.total;
> - spice_info("add with shadow count %u",
> - display->add_with_shadow_count);
> - display->add_with_shadow_count = 0;
> - spice_info("add[%u] %f exclude[%u] %f __exclude[%u] %f",
> - display->add_stat.count,
> - stat_cpu_time_to_sec(total),
> - display->exclude_stat.count,
> - stat_cpu_time_to_sec(display->exclude_stat.total),
> - display->__exclude_stat.count,
> - stat_cpu_time_to_sec(display->__exclude_stat.total));
> - spice_info("add %f%% exclude %f%% exclude2 %f%% __exclude %f%%",
> - (double)(total - display->exclude_stat.total) / total * 100,
> - (double)(display->exclude_stat.total) / total * 100,
> - (double)(display->exclude_stat.total -
> - display->__exclude_stat.total) / display
> ->exclude_stat.total * 100,
> - (double)(display->__exclude_stat.total) / display
> ->exclude_stat.total * 100);
> - stat_reset(&display->add_stat);
> - stat_reset(&display->exclude_stat);
> - stat_reset(&display->__exclude_stat);
> -#endif
> -}
> -
> - static int red_add_drawable(DisplayChannel *display, Drawable *drawable)
> -{
> - int ret = FALSE, surface_id = drawable->surface_id;
> - RedDrawable *red_drawable = drawable->red_drawable;
> - Ring *ring = &display->surfaces[surface_id].current;
> -
> - if (has_shadow(red_drawable)) {
> - ret = current_add_with_shadow(display, ring, drawable);
> - } else {
> - drawable_update_streamable(display, drawable);
> - ret = current_add(display, ring, drawable);
> - }
> -
> -#ifdef RED_WORKER_STAT
> - if ((++display->add_count % 100) == 0)
> - print_stats(display);
> -#endif
> - return ret;
> -}
> -
> static void red_get_area(DisplayChannel *display, int surface_id, const
> SpiceRect *area,
> uint8_t *dest, int dest_stride, int update)
> {
> @@ -2018,7 +1485,7 @@ static inline void red_process_draw(RedWorker *worker,
> RedDrawable *red_drawable
> goto cleanup;
> }
>
> - if (red_add_drawable(worker->display_channel, drawable)) {
> + if (display_channel_add_drawable(worker->display_channel, drawable)) {
> red_pipes_add_drawable(worker->display_channel, drawable);
> }
> cleanup:
> @@ -9011,3 +8478,10 @@ RedChannel* red_worker_get_display_channel(RedWorker
> *worker)
>
> return RED_CHANNEL(worker->display_channel);
> }
> +
> +clockid_t red_worker_get_clockid(RedWorker *worker)
> +{
> + spice_return_val_if_fail(worker, 0);
> +
> + return worker->clockid;
> +}
> diff --git a/server/red_worker.h b/server/red_worker.h
> index 3604dfd..d70e862 100644
> --- a/server/red_worker.h
> +++ b/server/red_worker.h
> @@ -110,6 +110,7 @@ QXLInstance* red_worker_get_qxl(RedWorker *worker);
> RedChannel* red_worker_get_cursor_channel(RedWorker *worker);
> RedChannel* red_worker_get_display_channel(RedWorker *worker);
> void red_worker_print_stats(RedWorker *worker);
> +clockid_t red_worker_get_clockid(RedWorker *worker);
>
> RedChannel *red_worker_new_channel(RedWorker *worker, int size,
> const char *name,
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