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From a8f8ecdde495fb2a6ecdeca306b55c22b5fd3a6d Mon Sep 17 00:00:00 2001
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From: Adam Jackson <ajax@redhat.com>
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Date: Tue, 9 Jan 2018 10:54:05 -0500
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Subject: [PATCH xserver 5/6] animcur: Fix transitions between animated cursors
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We weren't cancelling the old timer when changing cursors, making things
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go all crashy. Logically we could always cancel the timer first, but
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then we'd have to call TimerSet to re-arm ourselves, and GetTimeInMillis
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is potentially expensive.
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Reported-by: https://devtalk.nvidia.com/default/topic/1028172/linux/titan-v-ubuntu-16-04lts-and-387-34-driver-crashes-badly/post/5230967/#5230967
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Signed-off-by: Adam Jackson <ajax@redhat.com>
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Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
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Tested-by: Aaron Plattner <aplattner@nvidia.com>
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(cherry picked from commit de60245e05c0d2528d4ff42557a044387e53315c)
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---
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render/animcur.c | 25 +++++++++++++++----------
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1 file changed, 15 insertions(+), 10 deletions(-)
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diff --git a/render/animcur.c b/render/animcur.c
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index 9393b4018..e585a8f23 100644
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--- a/render/animcur.c
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+++ b/render/animcur.c
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@@ -152,11 +152,20 @@ AnimCurTimerNotify(OsTimerPtr timer, CARD32 now, void *arg)
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return ac->elts[elt].delay;
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}
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+static void
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+AnimCurCancelTimer(DeviceIntPtr pDev)
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+{
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+ CursorPtr cur = pDev->spriteInfo->anim.pCursor;
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+
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+ if (IsAnimCur(cur))
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+ TimerCancel(GetAnimCur(cur)->timer);
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+}
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+
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static Bool
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AnimCurDisplayCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)
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{
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AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
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- Bool ret;
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+ Bool ret = TRUE;
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if (IsFloating(pDev))
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return FALSE;
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@@ -166,8 +175,10 @@ AnimCurDisplayCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)
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if (pCursor != pDev->spriteInfo->anim.pCursor) {
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AnimCurPtr ac = GetAnimCur(pCursor);
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- ret = (*pScreen->DisplayCursor)
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- (pDev, pScreen, ac->elts[0].pCursor);
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+ AnimCurCancelTimer(pDev);
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+ ret = (*pScreen->DisplayCursor) (pDev, pScreen,
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+ ac->elts[0].pCursor);
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+
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if (ret) {
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pDev->spriteInfo->anim.elt = 0;
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pDev->spriteInfo->anim.time =
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@@ -179,15 +190,9 @@ AnimCurDisplayCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)
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AnimCurTimerNotify, pDev);
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}
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}
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- else
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- ret = TRUE;
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}
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else {
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- CursorPtr old = pDev->spriteInfo->anim.pCursor;
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-
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- if (old && IsAnimCur(old))
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- TimerCancel(GetAnimCur(old)->timer);
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-
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+ AnimCurCancelTimer(pDev);
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pDev->spriteInfo->anim.pCursor = 0;
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pDev->spriteInfo->anim.pScreen = 0;
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ret = (*pScreen->DisplayCursor) (pDev, pScreen, pCursor);
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--
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2.14.3
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