mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 04:01:08 +00:00
125 lines
4.5 KiB
Text
125 lines
4.5 KiB
Text
version 2.4
|
|
-----------
|
|
- fixed remapping of bright colors when dithering
|
|
- added libimagequant API to add fixed preset colors to the palette
|
|
|
|
version 2.3
|
|
-----------
|
|
- added ./configure script for better support of Intel C compiler and dependencies [thanks to pdknsk]
|
|
- tweaked quality metric to better estimate quality of images with large solid backgrounds [thanks to Rolf Timmermans]
|
|
- atomic file saves and fixed --skip-if-larger
|
|
- avoid applying quality setting to images that use palette already
|
|
- preserving standard PNG chunks (requires libpng 1.6)
|
|
- deprecated libpng 1.2 support
|
|
|
|
version 2.2
|
|
-----------
|
|
- preserving of unknown PNG chunks (enables optimized Android 9-patch images)
|
|
- improved color profile support: cHRM & gAMA as alternative to ICC profiles, OpenMP acceleration
|
|
- improved support for Intel C Compiler, speedup in 32-bit GCC, and some workarounds for Visual Studio's incomplete C support
|
|
|
|
version 2.1
|
|
-----------
|
|
- option to save files only if they're compressed better than the original
|
|
- option to generate posterized output (for use with 16-bit textures)
|
|
- support for ICC profiles via Little CMS library
|
|
|
|
version 2.0
|
|
-----------
|
|
- refactored codebase into pngquant and standalone libimagequant
|
|
- reduced memory usage by further 30% (and more for very large images)
|
|
- less precise remapping improving speed by 25% in higher speed settings
|
|
- --output option for writing converted file under the given path
|
|
- light dithering with --floyd=0.5
|
|
- fixed regression in dithering of alpha channel
|
|
|
|
version 1.8
|
|
-----------
|
|
- min/max quality option (number of colors is automatically adjusted for desired quality level)
|
|
- switched option parsing to getopt_long (syntax such as -s1 and --ext=ext is supported)
|
|
- significantly improved performance thanks to custom partial sorting
|
|
- optional Cocoa (Mac OS X) image reader for color profile support
|
|
- reduced memory usage by 20%
|
|
- remapping improved for very low number of colors
|
|
|
|
version 1.7
|
|
-----------
|
|
- new, accurate RGBA color similarity algorithm
|
|
- change of optional SSE3 code to SSE2 that is always enabled on x86-64
|
|
- optional OpenMP-based parallelisation of remapping
|
|
- changed long options to use double hyphen (-force to --force) [thanks to Jari Aalto]
|
|
|
|
version 1.6
|
|
-----------
|
|
- novel dithering algorithm that doesn't add noise unless necessary
|
|
- perceptual weighting of colors taking into account edges and noise
|
|
- much faster remapping
|
|
- improved portability, makefiles and man page
|
|
|
|
version 1.5
|
|
-----------
|
|
- palettes postprocessed with Voronoi iteration
|
|
- better RGBA color similarity algorithm and Floyd-Steinberg remapping
|
|
- SSE optimisations
|
|
|
|
version 1.4
|
|
-----------
|
|
- median cut is applied many times in a feedback loop
|
|
- speed/quality trade-off option
|
|
- faster remap of transparent areas
|
|
|
|
version 1.3
|
|
-----------
|
|
- significant changes to the algorithm: use of variance
|
|
to find largest dimensioin and to split most varying boxes
|
|
- use of premultiplied alpha for color blending
|
|
- conversion of output to gamma 2.2
|
|
|
|
version 1.2
|
|
-----------
|
|
- color computation done in floating point
|
|
- gamma correction applied
|
|
- dropped support for very old systems & compilers
|
|
|
|
version 1.1
|
|
-----------
|
|
- alpha-sensitive color reduction and dithering
|
|
- support -- and - arguments in command line
|
|
- number of colors optional (defaults to 256)
|
|
- increased maximum number of colors in histogram
|
|
|
|
version 1.0
|
|
-----------
|
|
- cleaned up Makefile.unx (better gcc optimizations, "clean" target)
|
|
- recompiled binaries with zlib 1.1.4
|
|
|
|
version 0.95
|
|
------------
|
|
- fixed Win32 filter bug (binary mode for stdin/stdout)
|
|
- fixed cosmetic "choosing colors" verbosity buglet
|
|
- fixed palette-size bug when number of colors in image < number requested
|
|
- fixed sample-depth bug (png_set_packing() not retroactively smart)
|
|
|
|
version 0.91
|
|
------------
|
|
- fixed some verbose/non-verbose oopers
|
|
- fixed Win32 (MSVC) portability issues (getpid(), random(), srandom())
|
|
- added Makefile.w32 for MSVC (tested with 5.0)
|
|
|
|
version 0.90
|
|
------------
|
|
- added support for multiple files on command line
|
|
- changed stdin support to write PNG stream to stdout (not "stdin-fs8.png")
|
|
|
|
version 0.75
|
|
------------
|
|
- added support for any type of input file [Glenn Randers-Pehrson]
|
|
- fixed palette-(re)scaling bug
|
|
- added -verbose and -quiet options (default now is -quiet)
|
|
- added palette-remapping to minimize size of tRNS chunk
|
|
- made Floyd-Steinberg dithering default
|
|
- changed output naming scheme to -fs8.png and -or8.png (FS or ordered dither)
|
|
|
|
version 0.70
|
|
------------
|
|
- first public release
|