From: Kristian Høgsberg <krh@bitplanet.net>
Date: Thu, 28 Feb 2013 19:56:43 +0000 (-0500)
Subject: compositor: Make sure surface->transform.inverse is a complete matrix
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9bcaaebfee3191880a3ad26f393d9ffc9b66bbab;p=profile%2Fivi%2Fweston-ivi-shell.git

compositor: Make sure surface->transform.inverse is a complete matrix

We never init this, so we need to copy over the position matrix and then
overwrite the translation entries to make sure we have a valid matrix.

Thanks to Pekka for spotting this (twice).
---

diff --git a/src/compositor.c b/src/compositor.c
index eb0195a..6afc491 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -603,7 +603,7 @@ weston_surface_update_transform_disable(struct weston_surface *surface)
 
 	surface->transform.matrix = surface->transform.position.matrix;
 
-	surface->transform.inverse.type  = WESTON_MATRIX_TRANSFORM_TRANSLATE;
+	surface->transform.inverse = surface->transform.position.matrix;
 	surface->transform.inverse.d[12] = -surface->geometry.x;
 	surface->transform.inverse.d[13] = -surface->geometry.y;