./graphics/ruby-chunky_png, Pure ruby library for read/write, chunk-level access to PNG

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Branch: CURRENT, Version: 1.3.12, Package name: ruby27-chunky_png-1.3.12, Maintainer: pkgsrc-users

= Chunky PNG

This library can read and write PNG files. It is written in pure Ruby for
maximum portability. Let me rephrase: it does NOT require RMagick or any other
memory leaking image library.

== Features
* Decodes any image that the PNG standard allows. This includes all standard
color modes, all bit depths and all transparency, interlacing and
filtering options.
* Encodes images supports all color modes (true color, grayscale and indexed)
and transparency for all these color modes. The best color mode will be
chosen automatically, based on the amount of used colors.
* R/W access to the image's pixels.
* R/W access to all image metadata that is stored in chunks.
* Memory efficient (uses a Fixnum, i.e. 4 or 8 bytes of memory per pixel,
depending on the hardware)
* Reasonably fast for Ruby standards, by only using integer math and a highly
optimized saving routine.
* Interoperability with RMagick if you really have to.

Also, have a look at OilyPNG at http://github.com/wvanbergen/oily_png.
OilyPNG is a mixin module that implements some of the ChunkyPNG algorithms
in C, which provides a massive speed boost to encoding and decoding.


Required to run:
[lang/ruby26-base]

Required to build:
[pkgtools/cwrappers]

Master sites:

Filesize: 345.5 KB

Version history: (Expand)


CVS history: (Expand)


   2021-10-26 12:47:26 by Nia Alarie | Files touched by this commit (800)
Log message:
graphics: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes
   2021-10-07 16:13:27 by Nia Alarie | Files touched by this commit (800)
Log message:
graphics: Remove SHA1 hashes for distfiles
   2020-09-14 15:15:34 by Takahiro Kambe | Files touched by this commit (3) | Package updated
Log message:
graphics/ruby-chunky_png: update to 1.13.2

Update ruby-chunky_png package to 1.13.2.

1.13.2 (2020-08-03)

* Implemented ChunkyPNG::Dimension#hash to fix some specs after a behavior
  change in RSpec.
   2020-03-08 16:50:00 by Takahiro Kambe | Files touched by this commit (2) | Package updated
Log message:
graphics/ruby-chunky_png: update to 1.3.11

Update ruby-chunky_png to 1.3.11.

1.3.11 - 2018-11-21

* Updated project metadata as published on Rubygems.org
   2019-07-08 12:47:26 by Nia Alarie | Files touched by this commit (2)
Log message:
Update wiki.github.com HOMEPAGEs.
   2018-03-14 15:36:03 by Takahiro Kambe | Files touched by this commit (3) | Package updated
Log message:
graphics/ruby-chunky_png: update to 1.3.10

=== 1.3.10 - 2018-01-23

- Fixed a regression in Datastream#metadata, which was not able to deal with \ 
iTXt chunks.

=== 1.3.9 - 2018-01-23

- Add support for reading and writing an international textual data (iTXt chunks).
   2017-03-20 14:04:21 by Takahiro Kambe | Files touched by this commit (2)
Log message:
Update ruby-chunky_png to 1.3.8.

=== 1.3.8 - 2016-08-31

- Add support for reading and writing an image's physical dimension (pHYs chunks).
   2016-10-10 17:06:28 by Takahiro Kambe | Files touched by this commit (3) | Package updated
Log message:
Update ruby-chunky_png to 1.3.7.

=== 1.3.7 - 2016-08-31

- Performance improvement for Color.euclidean_distance_rgba.
- Bugfix in decoding transparent pixels when decoding multiple images in a row.

=== 1.3.6 - 2016-06-19

- Allow reading images from streams that have trailing data after the IEND chunk.
- Add compatibility for Ruby 2.3's frozen string literals.
- Documentation updates and small cleanups.