image_ffi 0.3.0 changelog

0.3.0 #

Add thumbnailPng, a one-call decode, resize, and PNG encode that keeps the alpha channel. Reach for it on logos, icons, screenshots, and anything with transparency, where thumbnailJpeg would flatten the transparent areas onto a background.

Docs: sharpen the pub.dev description to lead with the value and the terms people search.

resizePixels now takes a colorSpace (ResizeColorSpace.srgb by default, or .linear). sRGB is right for photographic and UI images; linear is for masks and data pixels where an sRGB curve would distort the values.
Fix: 2-channel input is now resampled as grayscale + alpha (STBIR_RA) instead of two colour channels, so edges against transparency stay clean for gray+alpha images. Previously a 2-channel resize let transparent pixels bleed into the colour.

Initial release.
Decode PNG, JPEG, BMP, GIF, PSD, TGA, HDR and PIC from memory (decodeImage), with an optional forced channel count.
Read dimensions and channel count without decoding pixels (imageInfo).
High-quality, sRGB-correct resize (resizePixels).
JPEG and PNG encoding to memory (encodeJpeg, encodePng).
One-call thumbnail generation (thumbnailJpeg): decode, aspect-preserving downscale and JPEG encode.
Native stb sources compiled from source by a Dart build hook; no prebuilt binaries.