Struct SharedState 

pub struct SharedState<DS: DrawSharedImpl> {
    pub draw: DS,
}

Shared draw state

A single SharedState instance is shared by all windows and draw contexts. This struct is built over a DrawSharedImpl object provided by the graphics backend, which may be accessed directly for a lower-level API (though most methods are available through SharedState directly).

Note: all functionality is implemented through the DrawShared trait to allow usage where the DS type parameter is unknown. Some functionality is also implemented directly to avoid the need for downcasting.

Fields

draw: DS

The graphics backend’s DrawSharedImpl object

Trait Implementations

impl<DS: DrawSharedImpl> DrawShared for SharedState<DS>

fn image_alloc(&mut self, size: (u32, u32)) -> Result<ImageHandle, AllocError>

Allocate an image

fn image_upload( &mut self, handle: &ImageHandle, data: &[u8], format: ImageFormat, )

Upload an image to the GPU

fn image_free(&mut self, handle: ImageHandle)

Potentially free an image

fn image_size(&self, handle: &ImageHandle) -> Option<Size>

Get the size of an image