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xserver: prevent repeated Present wait-fence callbacks #1114

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xserver: prevent repeated Present wait-fence callbacks #1114

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13 changes: 11 additions & 2 deletions lorie/src/main/cpp/patches/xserver.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -309,7 +309,16 @@
present_check_flip2_ptr check_flip2;

+++ ./present/present_execute.c
@@ -67,6 +67,14 @@
@@ -34,5 +34,7 @@
ScreenPtr screen = vblank->screen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
-
+ /* lorie: disarm, or miSyncTriggerFence()'s restart-scan re-fires this callback. */
+ present_fence_set_callback(vblank->wait_fence, NULL, NULL);
+
screen_priv->re_execute(vblank);
}
@@ -67,6 +69,14 @@
WindowPtr window = vblank->window;
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
Expand All @@ -324,7 +333,7 @@

/* If present_flip failed, we may have to requeue for the next MSC */
if (vblank->exec_msc == crtc_msc + 1 &&
@@ -79,12 +87,59 @@
@@ -79,12 +95,59 @@
return;
}

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