Merge branch 'master' into core-updates

1 files changed, 69 insertions, 1 deletions

diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 262bcd31dc..27062ac777 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -14,7 +14,7 @@
 ;;; Copyright © 2016, 2017 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2016, 2017 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2017 ng0 <ng0@n0.is>
-;;; Copyright © 2017 Hartmut Goebel <h.goebel@crazy-compilers.com>
+;;; Copyright © 2017,2019 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;; Copyright © 2017 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
 ;;; Copyright © 2018 Fis Trivial <ybbs.daans@hotmail.com>
@@ -295,6 +295,74 @@ files.  It can compress them as much as 40% losslessly.")
 Currently all documentation resides in @file{pnglite.h}.")
       (license license:zlib))))
 
+(define-public libimagequant
+  (package
+    (name "libimagequant")
+    (version "2.12.3")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/ImageOptim/libimagequant.git")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0qsfq1kv1m5jzn9v9iz0bac66k4clcis1c9877qabnwzwmwma5v0"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:tests? #f)) ; no check target
+    (home-page "https://pngquant.org/lib/")
+    (synopsis "Image palette quantization library")
+    (description "libimagequant is a small, portable C library for
+high-quality conversion of RGBA images to 8-bit indexed-color (palette)
+images.  This library can significantly reduces file sizes and powers pngquant
+and other PNG optimizers.")
+   (license license:gpl3+)))
+
+(define-public pngquant
+  (package
+    (name "pngquant")
+    (version "2.12.3")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/kornelski/pngquant.git")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1yiwbcihn4311fpfd568gg8zmmhqwg80jmhbhkb5msiipgd9xv33"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:test-target "test"
+       #:configure-flags
+       '("--with-openmp" "--with-lcms2")))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("libpng" ,libpng)
+       ("zlib" , zlib)
+       ("lcms" ,lcms)
+       ("libimagequant" ,libimagequant)))
+    (home-page "https://pngquant.org/")
+    (synopsis "Utility and library for lossy compressing PNG images")
+    (description "pngquant is a PNG compressor that significantly reduces file
+sizes by converting images to a more efficient 8-bit PNG format with alpha
+channel (often 60-80% smaller than 24/32-bit PNG files).  Compressed images
+are fully standards-compliant and are supported by all web browsers and
+operating systems.
+
+Features:
+@enumerate
+@item High-quality palette generation using a combination of vector
+      quantization algorithms.
+@item Unique adaptive dithering algorithm that adds less noise to images
+      than the standard Floyd-Steinberg.
+@item Easy to integrate with shell scripts, GUIs and server-side software.
+@item Fast mode for real-time processing/large numbers of images.
+@end enumerate")
+    (license license:gpl3+)))
+
 (define-public libjpeg
   (package
    (name "libjpeg")