Merging our effort on single-file WebP decoder.

[MikuAuahDark]

Hello,

I wrote simplewebp 6 months ago for same purpose: To be able to decode WebP without resorting to libwebp and having easiest integration.

So far, the difference between our implementations are:

• Mine only support lossy VP8 (and lossy VP8 in VP8X). Yours only support lossless VP8 (VP8L).
• Mine tires to be compatible with ANSI C, while yours require C99.
• Mine doesn't use SIMD. Yours does.

As for which one API is better, I can't say this for certain. I'll let you think about it.

Unfortunately since mine copies most of Google's libwebp code, it counts as derived program and it's licensed under BSD-3 as opposed to more permissive MIT.

So far, my implementation can decode this WebP image and return bit-exact RGBA data when compared to libwebp.

Perhaps we can exchange code, thoughts, or opinions to support between each other implementations?

[a740g]

@MikuAuahDark This is brilliant. I’ve been looking for a stb_image-style WebP decoding library for some time now. I am not sure if @matanui159 is working on their implementation. But my humble request would be for both of you to work together to create a combined, feature-complete implementation.