PNG turned out to be pretty simple to parse directly from the specs. I was expecting much worse. Less than 12 hours on Handmade Hero, which includes all the time live coding, debugging, and all the explanations of everything as I did it:https://www.youtube.com/watch?v=lkEWbIUEuN0&list=PLEMXAbCVnmY5y4dSkKf297tJqwMxJOk7e …
Yes, and they wouldn't be hard to add - they look pretty simple from the spec. But they're definitely not something we need for Handmade Hero. We want lossless data in :)
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ImageOptim is designed for lossless PNG optimization. It removes useless metadata and iterates hard on the compression algorithm. I think data loss can happen but only in 0% Alpha areas.
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I am just speaking generally about what we want for HH. We don't have any need to run some kind of compressor, whether lossless or otherwise. The only reason we're reading PNGs is because we were supporting quick Photoshop export. It is not our data storage format!
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