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present: Copy unflip contents back to the Screen Pixmap

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As we unflip after the flip Window no longer passes the pixel ownership
test for the full Screen Pixmap, we can no longer utilize that Window to
copy the contents back to the backing pixmap. To first flip means that
the Window was originally backed by the Screen Pixmap and wholly covered
the Pixmap, thus we need to copy the last frame contents to the Screen
Pixmap when the flip chain is complete.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Chris Wilson 2015-02-06 08:25:42 +00:00 • committed by Keith Packard
parent baa50f60ac
commit 806470b9f6
1 changed files with 4 additions and 4 deletions
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8
present/present.c
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@ -409,20 +409,20 @@ static void
present_unflip(ScreenPtr screen)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
PixmapPtr pixmap = (*screen->GetScreenPixmap)(screen);
assert (!screen_priv->unflip_event_id);
assert (!screen_priv->flip_pending);
if (screen_priv->flip_window)
present_set_tree_pixmap(screen_priv->flip_window,
(*screen->GetScreenPixmap)(screen));
present_set_tree_pixmap(screen_priv->flip_window, pixmap);
present_set_tree_pixmap(screen->root, (*screen->GetScreenPixmap)(screen));
present_set_tree_pixmap(screen->root, pixmap);
/* Update the screen pixmap with the current flip pixmap contents
*/
if (screen_priv->flip_pixmap && screen_priv->flip_window) {
present_copy_region(&screen_priv->flip_window->drawable,
present_copy_region(&pixmap->drawable,
screen_priv->flip_pixmap,
NULL, 0, 0);
}