Crate drmkit_cursor 

Cursor themes, and the cursors in them.

Theme indexes the XCursor themes installed on a machine and resolves a cursor name – following each theme’s Inherits= chain and the alias table that maps modern names onto whatever legacy name a theme happens to ship – to a file on disk. It reads no pixels, which keeps it cheap and testable without a display.

Cursor is the other half: it reads one of those files into frames, hotspots and timing. A cursor file is untrusted input, so the parser bounds every length against the bytes actually present before allocating anything – see the xcursor module for why that is not delegated to a crate.

Structs

Cursor

A loaded cursor, immutable once built.

Frame

One frame of a cursor.

Paused

A cursor renderer whose device has gone away.

PingPong

Which of two cursor buffers is live.

Placement

Where the sprite ended up in the buffer.

PlaneState

The state a cursor plane is put into for one frame.

Renderer

A cursor on a plane.

RendererConfig

How to set a renderer up.

SelectedPlane

The plane a cursor will use.

Theme

An index of the cursor themes on disk.

ThemeResolution

Where a cursor name resolved to.

Enums

CursorError

What can go wrong finding a cursor.

PlanePath

How the cursor reaches the screen.

Rotation

How the sprite is turned before it reaches the plane.

Constants

CURSOR_FORMATS

The formats a cursor can be drawn in, best first.

Functions

compose

Compose frame into a cursor plane buffer, and say where it landed.

default_search_paths

The default cursor search path.

hardware_rotation

What to write to the plane’s rotation property.

plane_origin

Where the plane’s top-left corner goes, given where the pointer is.

preferred_size

The size to ask for, before finding out what is accepted.

probe_size

Settle on a buffer size, asking accepts what the kernel will take.

select_plane

Pick a plane for the cursor on crtc_index.

stage

Write placement into request.