A very simple PNG decoder written in Kotlin. This started as a small stand alone project to learn about the PNG format and a chance for me to better understand Kotlin. I'm planning to make this a fully functional decoder that can be used in any project you like.
Although the library is functional, it is far from fully featured. Some PNG functionalty is missing, like interlacing and transparency.
Clone this repository. To read a PNG image use the following:
val image = PNGReader.readPng("filename.png")This will return a PNGImage, as can be found in the models folder. This contains all meta information, including width, height, colortype and more.
To generate a BufferedImage from this, just call:
val bufferedImage = ImageData.toBufferedImage(image)You can render this BufferedImage as you like.
There are some things I plan to make:
- Writing tests using the Spek framework
- Transparancy support