read

fn char[]? read(Allocator allocator, String filename, QOIDesc* desc, QOIChannels channels = AUTO)

Read and decode a QOI image from the file system.

If channels is set to QOIChannels.AUTO, the function will
automatically determine the channels from the file's header.
However, if channels is RGB or RGBA, the output format will be
forced into this number of channels.

The desc struct will be filled with the width, height,
channels and colorspace of the image.

The function returns an optional, which can either be a QOIError
or a char[] pointing to the decoded pixels on success.

The returned pixel data should be free()d after use, or the decoding
and use of the data should be wrapped in a @pool() { ... }; block.

Parameters