ImageDescriptor class abstract
A descriptor of data that can be turned into an Image via a Codec.
Use this class to determine the height, width, and byte size of image data before decoding it.
Constructors
- ImageDescriptor.raw(ImmutableBuffer buffer, {required int width, required int height, int? rowBytes, required PixelFormat pixelFormat})
-
Creates an image descriptor from raw image pixels.
factory
Properties
- bytesPerPixel → int
-
The number of bytes per pixel in the image.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- height → int
-
The height, in pixels, of the image.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- width → int
-
The width, in pixels, of the image.
no setter
Methods
-
dispose(
) → void - Release the resources used by this object. The object is no longer usable after this method is called.
-
instantiateCodec(
{int? targetWidth, int? targetHeight, TargetPixelFormat targetFormat = TargetPixelFormat.dontCare}) → Future< Codec> - Creates a Codec object which is suitable for decoding the data in the buffer to an Image.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
encoded(
ImmutableBuffer buffer) → Future< ImageDescriptor> - Creates an image descriptor from encoded data in a supported format.