This protocol extension allows clients to create single-pixel buffers.
Compositors supporting this protocol extension should also support the
viewporter protocol extension. Clients may use viewporter to scale a
single-pixel buffer to a desired size.
Warning! The protocol described in this file is currently in the testing
phase. Backward compatible changes may be added together with the
corresponding interface version bump. Backward incompatible changes can
only be done by creating a new major version of the extension.
global factory for single-pixel buffers
Interface
Version 1
Destructor
Request
Since Version 1
create a 1×1 buffer from 32-bit RGBA values
Request
Since Version 1
Create a single-pixel buffer from four 32-bit RGBA values.
Unless specified in another protocol extension, the RGBA values use
pre-multiplied alpha.
The width and height of the buffer are 1.
The r, g, b and a arguments valid range is from UINT32_MIN (0)
to UINT32_MAX (0xffffffff).
These arguments should be interpreted as a percentage, i.e.
- UINT32_MIN = 0% of the given color component
- UINT32_MAX = 100% of the given color component
| Argument | Type | Description |
|---|
| id | new_id<wl_buffer> | |
| r | uint | value of the buffer's red channel |
| g | uint | value of the buffer's green channel |
| b | uint | value of the buffer's blue channel |
| a | uint | value of the buffer's alpha channel |
Copyright
Copyright © 2022 Simon Ser
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