Enum Request

#[non_exhaustive]
pub enum Request {
    Destroy,
    GetImageDescription {
        image_description: New<WpImageDescriptionV1>,
    },
}

Available on crate feature wayland and Linux only.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Destroy

destroy the color management output

Destroy the color wp_color_management_output_v1 object. This does not affect any remaining protocol objects.

This is a destructor, once received this object cannot be used any longer.

GetImageDescription

get the image description of the output

This creates a new wp_image_description_v1 object for the current image description of the output. There always is exactly one image description active for an output so the client should destroy the image description created by earlier invocations of this request. This request is usually sent as a reaction to the image_description_changed event or when creating a wp_color_management_output_v1 object.

The image description of an output represents the color encoding the output expects. There might be performance and power advantages, as well as improved color reproduction, if a content update matches the image description of the output it is being shown on. If a content update is shown on any other output than the one it matches the image description of, then the color reproduction on those outputs might be considerably worse.

The created wp_image_description_v1 object preserves the image description of the output from the time the object was created.

The resulting image description object allows get_information request.

If this protocol object is inert, the resulting image description object shall immediately deliver the wp_image_description_v1.failed event with the no_output cause.

If the interface version is inadequate for the output’s image description, meaning that the client does not support all the events needed to deliver the crucial information, the resulting image description object shall immediately deliver the wp_image_description_v1.failed event with the low_version cause.

Otherwise the object shall immediately deliver the ready event.

Fields

image_description: New<WpImageDescriptionV1>

Implementations

impl Request

pub fn opcode(&self) -> u16

Get the opcode number of this message

Trait Implementations

impl Debug for Request

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.