nixos xserver: remove vaapiDrivers

Use hardware.opengl.extraPackages instead.

nixos/doc/manual/release-notes/rl-unstable.xml

···
     of adding <literal>gutenprint</literal> to the <literal>drivers</literal> list.
     </para>
   </listitem>
+
+  <listitem>
+    <para><literal>services.xserver.vaapiDrivers</literal> has been removed. Use
+    <literal>services.hardware.opengl.extraPackages{,32}</literal> instead. You can
+    also specify VDPAU drivers there.</para>
+  </listitem>
 </itemizedlist>
 
 

nixos/modules/hardware/opengl.nix

···
     hardware.opengl.extraPackages = mkOption {
       type = types.listOf types.package;
       default = [];
+      example = literalExample "with pkgs; [ vaapiIntel libvdpau-va-gl vaapiVdpau ]";
       description = ''
-        Additional packages to add to OpenGL drivers.
+        Additional packages to add to OpenGL drivers. This can be used
+        to add additional VA-API/VDPAU drivers.
       '';
     };
 
     hardware.opengl.extraPackages32 = mkOption {
       type = types.listOf types.package;
       default = [];
+      example = literalExample "with pkgs; [ vaapiIntel libvdpau-va-gl vaapiVdpau ]";
       description = ''
         Additional packages to add to 32-bit OpenGL drivers on
         64-bit systems. Used when <option>driSupport32Bit</option> is
-        set.
+        set. This can be used to add additional VA-API/VDPAU drivers.
       '';
     };
 

nixos/modules/rename.nix

···
     (mkRenamedOptionModule [ "services" "xserver" "driSupport32Bit" ] [ "hardware" "opengl" "driSupport32Bit" ])
     (mkRenamedOptionModule [ "services" "xserver" "s3tcSupport" ] [ "hardware" "opengl" "s3tcSupport" ])
     (mkRenamedOptionModule [ "hardware" "opengl" "videoDrivers" ] [ "services" "xserver" "videoDrivers" ])
+    (mkRenamedOptionModule [ "services" "xserver" "vaapiDrivers" ] [ "hardware" "opengl" "extraPackages" ])
 
     (mkRenamedOptionModule [ "services" "mysql55" ] [ "services" "mysql" ])
 

nixos/modules/services/x11/display-managers/default.nix

···
   cfg = config.services.xserver;
   xorg = pkgs.xorg;
 
-  vaapiDrivers = pkgs.buildEnv {
-    name = "vaapi-drivers";
-    paths = cfg.vaapiDrivers;
-    # We only want /lib/dri, but with a single input path, we need "/" for it to work
-    pathsToLink = [ "/" ];
-  };
-
   fontconfig = config.fonts.fontconfig;
   xresourcesXft = pkgs.writeText "Xresources-Xft" ''
     ${optionalString (fontconfig.dpi != 0) ''Xft.dpi: ${toString fontconfig.dpi}''}
···
       elif test -e ~/.Xdefaults; then
           ${xorg.xrdb}/bin/xrdb -merge ~/.Xdefaults
       fi
-
-      export LIBVA_DRIVERS_PATH=${vaapiDrivers}/lib/dri
 
       # Speed up application start by 50-150ms according to
       # http://kdemonkey.blogspot.nl/2008/04/magic-trick.html

nixos/modules/services/x11/xserver.nix

···
         '';
       };
 
-      vaapiDrivers = mkOption {
-        type = types.listOf types.path;
-        default = [ ];
-        example = literalExample "[ pkgs.vaapiIntel pkgs.vaapiVdpau ]";
-        description = ''
-          Packages providing libva acceleration drivers.
-        '';
-      };
-
       startGnuPGAgent = mkOption {
         type = types.bool;
         default = false;