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screen-cast-monitor-stream-src: Only send cursor bitmap when it changes

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To avoid unnecessary pixel copying, only send the cursor bitmap when it
changes. This also allows the receiver to know when the cursor bitmap
actually changed.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/357
This commit is contained in:
Jonas Ådahl 2019-01-03 16:51:08 +01:00
parent c45d5f53ff
commit 56d260cfb3
1 changed files with 14 additions and 0 deletions
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14
src/backends/meta-screen-cast-monitor-stream-src.c
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@ -40,6 +40,8 @@ struct _MetaScreenCastMonitorStreamSrc
{
MetaScreenCastStreamSrc parent;
gboolean cursor_bitmap_invalid;
gulong actors_painted_handler_id;
gulong paint_handler_id;
gulong cursor_moved_handler_id;
@ -194,6 +196,7 @@ static void
cursor_changed (MetaCursorTracker *cursor_tracker,
MetaScreenCastMonitorStreamSrc *monitor_src)
{
monitor_src->cursor_bitmap_invalid = TRUE;
sync_cursor_state (monitor_src);
}
@ -452,6 +455,16 @@ meta_screen_cast_monitor_stream_src_set_cursor_metadata (MetaScreenCastStreamSrc
spa_meta_cursor->id = 1;
spa_meta_cursor->position.x = (int32_t) roundf (cursor_position.x);
spa_meta_cursor->position.y = (int32_t) roundf (cursor_position.y);
if (!monitor_src->cursor_bitmap_invalid)
{
spa_meta_cursor->hotspot.x = 0;
spa_meta_cursor->hotspot.y = 0;
spa_meta_cursor->bitmap_offset = 0;
return;
}
monitor_src->cursor_bitmap_invalid = FALSE;
spa_meta_cursor->bitmap_offset = sizeof (struct spa_meta_cursor);
spa_meta_bitmap = SPA_MEMBER (spa_meta_cursor,
@ -551,6 +564,7 @@ meta_screen_cast_monitor_stream_src_new (MetaScreenCastMonitorStream *monitor_s
static void
meta_screen_cast_monitor_stream_src_init (MetaScreenCastMonitorStreamSrc *monitor_src)
{
monitor_src->cursor_bitmap_invalid = TRUE;
}
static void