From 33457b403581de2bf360907e3d6cc1ccf07c7716 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <mail@baedert.org>
Date: Sat, 9 Dec 2017 14:31:10 +0100
Subject: [PATCH] gl renderer: Ensure texture sizes arent 0

We already ceil() the given float texture sizes here, so if they are
valid, the result should definitely be > 0. Textures with size 0 can't
be properly used, especially not as render targets, where they will
trigger an assertion failure later in a glCheckFramebuffer call.
---
 gsk/gl/gskgldriver.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gsk/gl/gskgldriver.c b/gsk/gl/gskgldriver.c
index 9b49ebed0c..999b3af2cf 100644
--- a/gsk/gl/gskgldriver.c
+++ b/gsk/gl/gskgldriver.c
@@ -429,6 +429,9 @@ create_texture (GskGLDriver *self,
   int width = ceilf (fwidth);
   int height = ceilf (fheight);
 
+  g_assert (width > 0);
+  g_assert (height > 0);
+
   if (width >= self->max_texture_size ||
       height >= self->max_texture_size)
     {