Slabity

{
    description = "Simple overlay flake";

    inputs.nixpkgs.url = "nixpkgs/release-20.03";

    outputs = inputs@{ self, nixpkgs }: {

        overlay = final: prev: {
            wine = prev.wine.override ({
                wineRelease = "staging";

Slabity

{ stdenv, buildPythonPackage, fetchPypi
, setuptools_scm, pytest, pluggy, py
}:

buildPythonPackage rec {
  pname = "graphene";
  version = "2.1.8";

  src = fetchPypi {
    inherit pname version;

Slabity

$ nix-shell -p gxr                                                                                     
these derivations will be built:
  /nix/store/f1v1qa74n187m7zk6mg1r4qcjsrpj791-gxr.drv
building '/nix/store/f1v1qa74n187m7zk6mg1r4qcjsrpj791-gxr.drv'...
unpacking sources
unpacking source archive /nix/store/wn63yl75ps80vylrd4wq5081hhn606r8-source
source root is source
patching sources
configuring
meson flags: --buildtype=plain         --libdir=/nix/store/89b75q5q0mvg05vp2py434f85amzl5kw-gxr/lib --libexecdir=/nix/store/89b75q5q0mvg05vp2py434f85amzl5kw-gxr/libexec         --bindir=/nix/store/89b75q5q0mvg05vp2py434f85amzl5kw-gxr/bin --sbindir=/nix/store/89b75q5q0mvg05vp2py434f85amzl5kw-gxr/sbin         --includedir=/nix/store/89b75q5q0mvg05vp2py434f85amzl5kw-gxr/include         --mandir=/nix/store/89b75q5q0mvg05vp2py434f85amzl5kw-gxr/share/man --infodir=/nix/store/89b75q5q0mvg05vp2py434f85amzl5kw-gxr/share/info         --localedir=/nix/store/89b75q5q0mvg05vp2py434f85amzl5kw-gxr/share/locale         -Dauto_fe

Slabity

{ stdenv
, fetchFromGitLab
, meson
, ninja
, pkgconfig
, cmake
, glib
, gdk-pixbuf
, vulkan-loader
, vulkan-headers

Slabity

MemoryProperties {
    memory_types: [
        MemoryType {
            properties: (empty),
            heap_index: 1,
        },
        MemoryType {
            properties: (empty),
            heap_index: 1,
        },

Slabity

1. Boot up a Linux console
* Virtual machine using VirtIO+Spice

2. Create a Framebuffer:
* Create Dumbbuffer and load image into it

3. Attach Framebuffer:
* Find Plane attached to the current CRTC+Connector
* Set Plane's FB_ID property to the framebuffer created

Slabity

GetResources
	Connectors: [connector::Handle(31)]
	Encoders: [encoder::Handle(32)]
	CRTCS: [crtc::Handle(30)]
	Framebuffers: []
	Planes: [plane::Handle(28), plane::Handle(29)]
CreateFramebuffer 1024 768
DumbBuffer { size: (1024, 768), length: 3145728, format: ARGB8888, pitch: 4096, handle: buffer::Handle(1) }
framebuffer::Handle(71)
GetResources

Slabity

// map_ptr! macro takes an &Option<&mut &mut [T]> and returns the raw pointer
// map_len! macro takes an &Option<&mut &mut [T]> and returns the length
// map_shrink! macro takes an &Option<&mut &mut [T]> and dynamically shrinks it

// This function will fill the passed in buffers with data from an FFI function.
pub fn load_buffers(buffer_a: Option<&mut &mut [u32]>, buffer_b: Option<&mut &mut [u64]>) {
  let mut ffi_buffer_holder = Buffer {
    ptr_a: map_ptr!(&buffer_a),
    ptr_b: map_ptr!(&buffer_b),
    len_a: map_len!(&buffer_a),

Slabity

$ QT_QPA_PLATFORM=wayland dbus-run-session kwin_wayland --xwayland "plasmashell -p org.kde.plasma.desktop"
No backend specified through command line argument, trying auto resolution
OpenGL vendor string:                   X.Org
OpenGL renderer string:                 Radeon RX 580 Series (POLARIS10, DRM 3.27.0, 5.0.3, LLVM 7.0.1)
OpenGL version string:                  4.5 (Compatibility Profile) Mesa 18.3.4
OpenGL shading language version string: 4.50
Driver:                                 Unknown
GPU class:                              Unknown
OpenGL version:                         4.5
GLSL version:                           4.50

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$ kwin_wayland --xwayland "plasmashell -p org.kde.plasma.phone"
No backend specified through command line argument, trying auto resolution
OpenGL vendor string:                   X.Org
OpenGL renderer string:                 Radeon RX 580 Series (POLARIS10, DRM 3.27.0, 5.0.3, LLVM 7.0.1)
OpenGL version string:                  4.5 (Compatibility Profile) Mesa 18.3.4
OpenGL shading language version string: 4.50
Driver:                                 Unknown
GPU class:                              Unknown
OpenGL version:                         4.5
GLSL version:                           4.50