113 lines
3.1 KiB
Nix
113 lines
3.1 KiB
Nix
{ config, lib, pkgs, pkgs_i686, ... }:
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with lib;
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let
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cfg = config.hardware.opengl;
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kernelPackages = config.boot.kernelPackages;
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videoDrivers = config.services.xserver.videoDrivers;
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makePackage = p: p.buildEnv {
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name = "mesa-drivers+txc-${p.mesa_drivers.version}";
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paths =
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[ p.mesa_drivers
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p.mesa_noglu # mainly for libGL
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(if cfg.s3tcSupport then p.libtxc_dxtn else p.libtxc_dxtn_s2tc)
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p.udev
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];
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};
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in
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{
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options = {
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hardware.opengl.enable = mkOption {
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description = "Whether this configuration requires OpenGL.";
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type = types.bool;
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default = false;
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internal = true;
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};
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hardware.opengl.driSupport = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Whether to enable accelerated OpenGL rendering through the
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Direct Rendering Interface (DRI).
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'';
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};
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hardware.opengl.driSupport32Bit = mkOption {
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type = types.bool;
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default = false;
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description = ''
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On 64-bit systems, whether to support Direct Rendering for
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32-bit applications (such as Wine). This is currently only
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supported for the <literal>nvidia</literal> and
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<literal>ati_unfree</literal> drivers, as well as
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<literal>Mesa</literal>.
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'';
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};
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hardware.opengl.s3tcSupport = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Make S3TC(S3 Texture Compression) via libtxc_dxtn available
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to OpenGL drivers instead of the patent-free S2TC replacement.
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Using this library may require a patent license depending on your location.
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'';
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};
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hardware.opengl.package = mkOption {
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type = types.package;
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internal = true;
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description = ''
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The package that provides the OpenGL implementation.
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'';
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};
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hardware.opengl.package32 = mkOption {
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type = types.package;
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internal = true;
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description = ''
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The package that provides the 32-bit OpenGL implementation on
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64-bit systems. Used when <option>driSupport32Bit</option> is
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set.
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'';
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};
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};
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config = mkIf cfg.enable {
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assertions = lib.singleton {
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assertion = cfg.driSupport32Bit -> pkgs.stdenv.isx86_64;
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message = "Option driSupport32Bit only makes sense on a 64-bit system.";
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};
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system.activationScripts.setup-opengl =
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''
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ln -sfn ${cfg.package} /run/opengl-driver
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${if pkgs.stdenv.isi686 then ''
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ln -sfn opengl-driver /run/opengl-driver-32
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'' else if cfg.driSupport32Bit then ''
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ln -sfn ${cfg.package32} /run/opengl-driver-32
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'' else ''
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rm -f /run/opengl-driver-32
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''}
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'';
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environment.sessionVariables.LD_LIBRARY_PATH =
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[ "/run/opengl-driver/lib" "/run/opengl-driver-32/lib" ];
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hardware.opengl.package = mkDefault (makePackage pkgs);
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hardware.opengl.package32 = mkDefault (makePackage pkgs_i686);
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boot.extraModulePackages = optional (elem "virtualbox" videoDrivers) kernelPackages.virtualboxGuestAdditions;
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};
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}
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