mirror of
https://github.com/NixOS/nixpkgs.git
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46 lines
1.4 KiB
Bash
46 lines
1.4 KiB
Bash
profileName=opengl
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profileDir=/nix/var/nix/profiles
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profile=$profileDir/$profileName
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if test -z "$OPENGL_DRIVER"; then
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if test -d "$profile/lib"; then
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OPENGL_DRIVER=$profile
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fi
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# OpenGL driver for current X server on NixOS.
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if test -d /var/state/opengl-driver; then
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OPENGL_DRIVER=/var/state/opengl-driver
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fi
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fi
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if test -z "$OPENGL_DRIVER"; then
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cat <<EOF
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======================================================================
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This program uses OpenGL for 3D graphics. For best performance, you
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should use a hardware-accelerated implementation of OpenGL. Since you
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have not enabled one, a software implementation (Mesa) will be used.
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This will probably be quite slow.
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This program will look for a hardware-accelerated implementation of
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OpenGL in the "$profileName" profile of your Nix installation. For
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instance, to enable the (hopefully) accelerated driver provided by
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your (non-NixOS) Linux distribution, try
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$ nix-env -p $profile -i xorg-sys-opengl
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Alternatively, you can set the OPENGL_DRIVER environment variable to
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point at the package containing the OpenGL implementation.
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======================================================================
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EOF
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OPENGL_DRIVER=$mesa
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fi
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export LD_LIBRARY_PATH=$LD_LIBRARY_PATH${LD_LIBRARY_PATH:+:}$OPENGL_DRIVER/lib
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hook="$OPENGL_DRIVER/nix-support/opengl-hook"
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if test -e "$hook"; then
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source "$hook"
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fi
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