Function deferred_from_encoded_data
pub fn deferred_from_encoded_data(
data: impl Into<RCHandle<SkData>>,
alpha_type: impl Into<Option<SkAlphaType>>,
) -> Option<RCHandle<SkImage>>
Expand description
Return a Image
using the encoded data, but attempts to defer decoding until the
image is actually used/drawn. This deferral allows the system to cache the result, either on the
CPU or on the GPU, depending on where the image is drawn. If memory is low, the cache may
be purged, causing the next draw of the image to have to re-decode.
If alpha_type
is None
, the image’s alpha type will be chosen automatically based on the
image format. Transparent images will default to AlphaType::Premul
. If alpha_type
contains
AlphaType::Premul
or AlphaType::Unpremul
, that alpha type will be used. Forcing opaque
(passing AlphaType::Opaque
) is not allowed, and will return None
.
If the encoded format is not supported, None
is returned.
encoded
- the encoded data
Returns: created Image
, or None
example: https://fiddle.skia.org/c/@Image_DeferredFromEncodedData