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compositor-drm: Fix disabling cursor plane

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commit a7cba1d4cd changed the way
the cursor plane is setup.  Previously it was pre-emptively set
disabled for the next frame, and that would be changed at next
frame time if the cursor plane was to be used.  It was changed
to be disabled at plane assignment time.

We disable the use of planes entirely by setting disable_planes to
a non-zero value, which bypasses all calls to assign_planes - so
if the plane was set-up in the previous frame it will retain its
state post-disable.

This leads to desktop zoom leaving the cursor plane in place when
it sets disable_planes.

This patch clears any stale cursor plane state from the redraw
handler if disable_planes is set so drm_output_set_cursor()
will do the right thing.

Reviewed-by: Daniel Stone <daniels@collabora.com>
Reported-by: Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com>
This commit is contained in:
Derek Foreman 2017-04-13 13:48:48 -05:00
parent 5f93b9f640
commit 2cd87fe8d7
1 changed files with 10 additions and 0 deletions
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10
libweston/compositor-drm.c
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@ -865,6 +865,16 @@ drm_output_repaint(struct weston_output *output_base,
assert(!output->fb_last);
/* If disable_planes is set then assign_planes() wasn't
* called for this render, so we could still have a stale
* cursor plane set up.
*/
if (output->base.disable_planes) {
output->cursor_view = NULL;
output->cursor_plane.x = INT32_MIN;
output->cursor_plane.y = INT32_MIN;
}
drm_output_render(output, damage);
if (!output->fb_pending)
return -1;