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Investigate switching to to libspng #4524

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lgritz opened this issue Nov 4, 2024 · 1 comment
Open

Investigate switching to to libspng #4524

lgritz opened this issue Nov 4, 2024 · 1 comment
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build / testing / port / CI Affecting the build system, tests, platform support, porting, or continuous integration. file formats Image file formats, ImageInput, ImageOutput help wanted A task that is desired, but needs somebody to commit the effort to implement it. mackerel 🎣 Medium sized project that somebody should take on to dive deeper into being an OIIO developer.

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@lgritz
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lgritz commented Nov 4, 2024

libspng is an alternative to libpng that is both (allegedly) higher performance and also a much simpler dependency to manage (just one .h and one .c file, easily "vendored").

We should try a rewrite of our png handling to use this alternative library, check performance and see if we like the simplified dependency situation.
@lgritz lgritz added file formats Image file formats, ImageInput, ImageOutput build / testing / port / CI Affecting the build system, tests, platform support, porting, or continuous integration. help wanted A task that is desired, but needs somebody to commit the effort to implement it. mackerel 🎣 Medium sized project that somebody should take on to dive deeper into being an OIIO developer. labels Nov 4, 2024
@ssh4net
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ssh4net commented Dec 12, 2024

There are couple of interesting alternatives:

https://www.reddit.com/r/rust/comments/1ha7uyi/memorysafe_png_decoders_now_vastly_outperform_c/?rdt=40279

The one written on rust, looks promising.
But Google Wuffs maybe more interesting: https://github.com/google/wuffs

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build / testing / port / CI Affecting the build system, tests, platform support, porting, or continuous integration. file formats Image file formats, ImageInput, ImageOutput help wanted A task that is desired, but needs somebody to commit the effort to implement it. mackerel 🎣 Medium sized project that somebody should take on to dive deeper into being an OIIO developer.
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