16102dce2f
markdown can't represent the difference without another extension and both the html manual and the manpage render them the same, so keeping the distinction is not very useful on its own. with the distinction removed we can automatically convert many options that use <code> tags to markdown. the manpage remains unchanged, html manual does not render differently (but class names on code tags do change from "code" to "literal").
55 lines
1.7 KiB
Nix
55 lines
1.7 KiB
Nix
# Global configuration for the SSH client.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.programs.turbovnc;
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in
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{
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options = {
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programs.turbovnc = {
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ensureHeadlessSoftwareOpenGL = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to set up NixOS such that TurboVNC's built-in software OpenGL
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implementation works.
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This will enable <option>hardware.opengl.enable</option> so that OpenGL
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programs can find Mesa's llvmpipe drivers.
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Setting this option to <literal>false</literal> does not mean that software
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OpenGL won't work; it may still work depending on your system
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configuration.
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This option is also intended to generate warnings if you are using some
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configuration that's incompatible with using headless software OpenGL
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in TurboVNC.
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'';
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};
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};
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};
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config = mkIf cfg.ensureHeadlessSoftwareOpenGL {
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# TurboVNC has builtin support for Mesa llvmpipe's `swrast`
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# software rendering to implemnt GLX (OpenGL on Xorg).
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# However, just building TurboVNC with support for that is not enough
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# (it only takes care of the X server side part of OpenGL);
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# the indiviudual applications (e.g. `glxgears`) also need to directly load
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# the OpenGL libs.
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# Thus, this creates `/run/opengl-driver` populated by Mesa so that the applications
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# can find the llvmpipe `swrast.so` software rendering DRI lib via `libglvnd`.
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# This comment exists to explain why `hardware.` is involved,
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# even though 100% software rendering is used.
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hardware.opengl.enable = true;
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};
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}
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