Function write_pixels 

pub fn write_pixels(
    _format: wlc_pixel_format,
    _geometry: Geometry,
    _data: &[u8],
)

Write pixel data with the specific format to output’s framebuffer. If the geometry is out of bounds, it will be automatically clamped.

Unsafety

The data is converted to a *mut c_void and then passed to C to read. The size of it should be the stride of the geometry * height of the geometry.