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* Fix -Wsign-compare warnings.marxin2019-02-271-2/+2
| | | | | I decided to modify code in a defensive way. Ideally functions like size() or length() should return an unsigned type.
* Properly detect when to use DRI_PRIMEHein-Pieter van Braam2019-01-281-0/+233
We fork off twice once with and once without DIR_PRIME=1 set. We then use the vendor string to determine what GPU to use. We prefer (in order) 1) AMDGPU/AMDGPU-PRO/NVidia non-free driver 2) Intel driver 3) Nouveau 4) Software rendering If a driver can't be detected it will default to DRI_PRIME=0