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Set DRI_PRIME=1 by default on X11 if not already set 

This mirrors behavior on Windows and MacOSX where Godot tries to default
to a dGPU if it exists. This doesn't work for Nvidia optimus yet but
this can maybe be added later.
This commit is contained in:
Hein-Pieter van Braam 2018-11-03 00:26:30 +01:00
parent f84893f709
commit 0aad11a6a7
1 changed files with 4 additions and 0 deletions
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4
platform/x11/os_x11.cpp
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@ -267,6 +267,10 @@ Error OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_a
// maybe contextgl wants to be in charge of creating the window
#if defined(OPENGL_ENABLED)
// Set DRI_PRIME if not set. This means that Godot should default to a higher-power GPU if it exists.
// Note: Due to the final '0' parameter to setenv any existing DRI_PRIME environment variables will not
// be overwritten.
setenv("DRI_PRIME", "1", 0);
ContextGL_X11::ContextType opengl_api_type = ContextGL_X11::GLES_3_0_COMPATIBLE;