From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 25 Apr 2018 11:53:33 +0000 (+0300)
Subject: Check for OES_mapbuffer in Buffer::unmap
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=bb162b9edd4b8c0e9faeed75da4148f5b9735450;hp=bb162b9edd4b8c0e9faeed75da4148f5b9735450

Check for OES_mapbuffer in Buffer::unmap

It might have been mapped through ARB_map_buffer_range, in which case
OES_mapbuffer didn't get initialized in Buffer::map.
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