A command line tool to aid in working with png files with WASM-4.
Using the CLI, you're able to process png files into compressed WASM-4 image data. The png-to-WASM-4 routine produces identical results to the png2src tool in WASM-4.
To use the CLI, run w4-pnger convert [PNG File Pattern] {--rs | --raw | --text {OUTPUT FILE PREFIX}} {--compress | -c} to generate the output. W4-pnger currently supports outputting to text, and raw files.
To open these raw files from within a WASM-4 application, add
w4-tiny-decomp = { git = "https://github.com/fishtaco567/w4-pnger" }
to your cargo.toml, then create a Decompressor object with Decompressor::new(buf), where buf is an &mut [u8] large enough to hold your largest decompressed image. Then call decompress, which will return a Result<SpriteHandle, &str>. The decompressor may not be used again until this SpriteHandle is dropped.