Fpng Alternatives

fpng reviews and mentions

• png crate gets an ultrafast compression mode, up to 4x faster decompression
  6 projects | /r/rust | 13 Apr 2023

  When the QOI format was first announced it wasn't clear that was even possible while keeping PNG format compatibility. But the fpng and fpnge C/C++ libraries showed it was, and today you can take advantage of those advances in a general purpose PNG library in Rust!

• Hello, PNG
  13 projects | news.ycombinator.com | 18 Jan 2023

  CRC is a table and 5 lines of code. That's trivial.

  >zlib is 23k lines

  It's not needed to make a PNG reader/writer. zlib is massive overkill for only making a PNG reader or writer. Here's a tiny deflate/inflate code [2] under 1k lines (and could be much smaller if needed).

  stb[0] has single headers of ~7k lines total including all of the formats PNG, JPG, BMP,. PSD, GIF, HDR, and PIC. Here's [1] a 3k lines single file PNG version with tons if #ifdefs for all sorts of platforms. Removing those and I'd not be surprised if you could not do it in ~1k lines (which I'd consider quite simple compared to most of todays' media formats).

  >Of course they're not common formats so you're stuck with complex formats like PNG

  BMP is super common and easy to use anywhere.

  I use flat image files all the time for quick and dirty stuff. They quickly saturate disk speeds and networking speeds (say recording a few decent speed cameras), and I've found PNG compression to alleviate those saturate CPU speeds (some libs are super slow, some are vastly faster). I've many times made custom compression formats to balance these for high performance tools when neither things like BMPs or things like PNG would suffice.

  [0] https://github.com/nothings/stb

  [1] https://github.com/richgel999/fpng/blob/main/src/fpng.cpp

  [2] https://github.com/jibsen/tinf/tree/master/src

• Quite OK Image is now my favorite asset format
  9 projects | news.ycombinator.com | 18 Dec 2022
• Computing Adler32 Checksums at 41 GB/s
  5 projects | news.ycombinator.com | 7 Aug 2022

  This was actually considered, and other libraries do ignore checksums, or at least have options to:

  https://github.com/richgel999/fpng/issues/9

• QOI – The Quite OK Image Format
  8 projects | news.ycombinator.com | 1 Apr 2022

  In the other direction, you can target a subset of PNG to get less optimized images but with QOI-like encode and decode speed: https://github.com/richgel999/fpng

• ReShade 5.0 Released!
  1 project | /r/pcgaming | 2 Feb 2022

  On specific operations like screenshots for example the new version is WAY faster though. We were using stb_image_write.h but switched to fpng which promised 12-19x faster compression at smaller sizes. That and the fact that screenshot saving have now been given it's own thread so it now longer causes a small stutter like when it was on the main thread, means that screenshot are now near instantaneous.

• QOI – The “Quite OK Image Format” for fast, lossless image compression
  7 projects | news.ycombinator.com | 23 Dec 2021

  I think QOI inspired the creation of https://github.com/richgel999/fpng which creates standard PNGs and compares itself directly to QOI.

• Losslessly compresses RGB and RGBA images to a similar size of PNG, while offering a 20x-50x speedup in compression and 3x-4x speedup in decompression
  3 projects | /r/programming | 20 Dec 2021

  BTW, today I found this fpng-fast PNG writer. There is a comparison with QOI in the readme.

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