144 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			144 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
| { config, lib, pkgs, pkgs_i686, ... }:
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| 
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| with lib;
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| 
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| let
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| 
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|   cfg = config.hardware.opengl;
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| 
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|   kernelPackages = config.boot.kernelPackages;
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| 
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|   videoDrivers = config.services.xserver.videoDrivers;
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| 
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|   makePackage = p: pkgs.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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|       ];
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|   };
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| 
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|   package = pkgs.buildEnv {
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|     name = "opengl-drivers";
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|     paths = [ cfg.package ] ++ cfg.extraPackages;
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|   };
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| 
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|   package32 = pkgs.buildEnv {
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|     name = "opengl-drivers-32bit";
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|     paths = [ cfg.package32 ] ++ cfg.extraPackages32;
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|   };
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| 
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| in
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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|     hardware.opengl.extraPackages = mkOption {
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|       type = types.listOf types.package;
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|       default = [];
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|       example = literalExample "with pkgs; [ vaapiIntel libvdpau-va-gl vaapiVdpau ]";
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|       description = ''
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|         Additional packages to add to OpenGL drivers. This can be used
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|         to add additional VA-API/VDPAU drivers.
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|       '';
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|     };
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| 
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|     hardware.opengl.extraPackages32 = mkOption {
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|       type = types.listOf types.package;
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|       default = [];
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|       example = literalExample "with pkgs.pkgsi686Linux; [ vaapiIntel libvdpau-va-gl vaapiVdpau ]";
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|       description = ''
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|         Additional packages to add to 32-bit OpenGL drivers on
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|         64-bit systems. Used when <option>driSupport32Bit</option> is
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|         set. This can be used to add additional VA-API/VDPAU drivers.
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|       '';
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|     };
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| 
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|   };
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| 
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|   config = mkIf cfg.enable {
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| 
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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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| 
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|     system.activationScripts.setup-opengl =
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|       ''
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|         ln -sfn ${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 ${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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| 
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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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| 
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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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| 
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|     boot.extraModulePackages = optional (elem "virtualbox" videoDrivers) kernelPackages.virtualboxGuestAdditions;
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|   };
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| }
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