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From cb020861deb8bfa91579de72f3860c445ed752d3 Mon Sep 17 00:00:00 2001
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From: Adam Jackson <ajax@redhat.com>
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Date: Thu, 7 Nov 2013 13:59:30 -0500
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Subject: [PATCH 4/6] composite: Fix COW creation for Xinerama
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Say you have two 800x600 screens left/right of each other. A window
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that's 200x200 at +700+0 in protocol coordinate space will appear to be
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at -100+0 in the coordinate space of the right hand screen. Put another
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way: windows are in the coordinate space of their root window pixmap.
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We weren't doing this translation for the COW, so when rendering came in
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to it you'd see the top-left chunk of the COW on all screens. Cool
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effect and all, but wrong.
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Signed-off-by: Adam Jackson <ajax@redhat.com>
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---
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composite/compoverlay.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/composite/compoverlay.c b/composite/compoverlay.c
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index d3cfaf0..575be42 100644
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--- a/composite/compoverlay.c
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+++ b/composite/compoverlay.c
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@@ -142,7 +142,7 @@ compCreateOverlayWindow(ScreenPtr pScreen)
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#endif
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pWin = cs->pOverlayWin =
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- CreateWindow(cs->overlayWid, pRoot, 0, 0, w, h, 0,
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+ CreateWindow(cs->overlayWid, pRoot, -pScreen->x, -pScreen->y, w, h, 0,
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InputOutput, CWBackPixmap | CWOverrideRedirect, &attrs[0],
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pRoot->drawable.depth,
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serverClient, pScreen->rootVisual, &result);
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--
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1.8.3.1
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