1 ⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽
2 GEGL - an image processing framework
3 ⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺
7 • Improvements to thread safety and parallelism.
8 • Lower overhead graph travesal due from rewrite of visitors
9 • OpenCL support now enabled by default when detected.
10 • Experimental multithreading, enable by setting
11 GEGL_THREADS=<number of threads> in the environment.
12 • Experimental mipmap rendering, which permits transparent rendering of
13 previews on smaller sized versions, enable by setting
14 GEGL_MIPMAP_RENDERING=true in the environment.
16 • new operations: alien-map, antialias, apply-lens, bilateral-filter,
17 bump.map, cartoon, channel-mixer, color-enhance, color-exchange,
18 color-reduction, color-rotate, convolution-matrix, copy-buffer, cubism,
19 deinterlace, diffraction-patterns, distance-transform, displace, edge,
20 emboss, engrave, exposure, fractal-trace, high-pass, image-compare,
21 illusion, invert-gamma, lens-flare, linear, linear-gradient, mosaic,
22 motion-blur-circular, motion-blur-zoom, noise-cell noise-cie-lch,
23 noise-hsv, noise-hurl, noise-pick, noise-rgb, noise-simplex, noise-spread,
24 n-point deformation ops, oilify, panorama-projection, photocopy, plasma,
25 radial-gradient, red-eye-removal, scale-size-keep-aspect, softglow,
26 stretch-contrast, texturize-canvas, tile-glass, tile-seamless, tile-paper,
27 tile, warp, whirl-pinch, wind, cache, cast-format, lcms-from-profile,
28 npy-save, webp-load, webp-save, scale-ratio, scale-size, seamless-clone,
29 sinus, supernova, value-propagate, video-degradation
30 • reimplementation of gaussian-blur faster and more accurate
31 • support for using URIs in image loaders
33 • New default tile backend, doing disk writes in a separate thread.
37 Albert F, Alexandre Prokoudine, Alexia Death, Akash Akya, Anders Jonsson,
38 Andika Triwidada, Andreas Fischer, Angh, Awaw Fumin, Barak Itkin, Bruce
39 Cowan, Carlos Zubieta, Cédric Valmary, Chris Leonard, Christian Kirbach,
40 Clayton Walker, Daniel Mustieles, Daniel Nylander, Daniel Sabo, Debarshi Ray,
41 Denis Knoepfle, Dimitris Papavasiliou, Dimitris Spingos, Djavan Fagundes, Dov
42 Grobgeld, Elle Stone, Enrico Nicoletto, Felix Ulber, Florian Klemme,
43 Francisco Vila, Fran Diéguez, Georges Basile Stavracas Neto, Hans Lo, Harald
44 Korneliussen, Hartmut Kuhse, Inaki Larranaga Murgoitio, Isaac Wagner, Jan
45 Vesely, Jan Vesely, Jehan, Jon Nordby, Jordi Mas, Kalev Lember, Kristjan
46 Schmidt, Marco Ciampa, Marek Dvoroznak, Maria Mavridou, Martijn van Beers,
47 Martin Nordholts, Martin Srebotnjak, Massimo Valentini, Matej Urbančič,
48 Maxime Nicco, Michael Henning, Michael Muré, Michael Natterer, Mikael
49 Magnusson, Miroslav Talasek, Muhammet Kara, Mukund Sivaraman, Nana Chery,
50 Nick Black, Nicolas Robidoux, Nils Philippsen, Norm Murray, Pascal Giessler,
51 Piotr Drąg, Quentin Glidic, Rafael Ferreira, Rasmus, RPG, Rūdolfs Mazurs,
52 Samir Ribic, Samuel Pitoiset, sebul, Simon Budig, Sven Claussner, Téo Mazars,
53 Thomas Manni, Tim Lunn, Tim Mooney, Ting-Wei Lan, Tom Stellard, Ulf-D.
54 Ehlert, Vadim Rutkovsky, Victor Oliveira, Ville Sokk, Vincent Untz, Yongjia
55 Zhang, Yongjia Zhang, Øyvind Kolås and 周 周.
61 • High level API to apply ops directly to buffers with arguments.
62 • Final bits of translation infrastructure.
63 • Invalidate regions when disconnecting input pads.
66 • New operation: global-matting
67 • Allow transform core to do perspective transforms.
68 • Added string based key/value pairs to operations.
69 • Added arguments for dealing with scaled down preview rendering.
70 • Added human interaction ranges and non-linear mapping to properties.
73 • Removed broken lanczos sampler.
74 • Add gegl_buffer_set_color and gegl_buffer_set_pattern
75 • Added ability to drop cached tiles.
76 • Added API for handling abyss policy (not implemented yet)
77 • Avoid iterating global tile cache when flushing/destroying buffers
78 that have no tiles in the cache.
82 Øyvind Kolås, Martin Nordholts, Hans Petter Jansson, Mikael Magnusson, Victor
83 Oliveira, Nils Philippsen, Kevin Cozens, Michael Muré, Jan Rüegg, Michael
84 Natterer, Michael Henning, Massimo Valentini, Alexandre Prokoudine and
89 • New operations: spread, vignette, map-relative, noise-reduction, plasma,
90 fractal-trace, exr-save, lens-correct, emboss, cubism, ripple,
91 color-to-alpha, color-rotate, red-eye-removal, convolution-matrix,
92 deinterlace, polar-coordinates, lens-distortion, pixelise.
94 • Split GeglView GTK Widget into separate utility library
96 • build/test improvements.
98 • Added lohalo resampler, API and infrastructure for doing non-
103 Øyvind Kolås, Michael Natterer, Barak Itkin, Nils Philippsen, Mukund Sivaraman,
104 Jon Nordby, Emilio Pozuelo Monfort, Étienne Bersac, Martin Nordholts,
105 Victor Oliveira, Michael Muré, Michael Schumacher, Adam Turcotte,
106 Nicolas Robidoux, Robert Sasu, Massimo Valentini, Joao S. O. Bueno,
107 Hans Lo, Zbigniew Chyla, David Evans and Javier Jardón.
110 Changes in GEGL 0.1.6
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112 • New operations: max-rgb, pixelise, motion blur.
114 • Fixed a bug in matting-levin that made GEGL halt due to errors
115 detected by babl sanity code, this made 0.1.4 be unusable if you had
116 all dependendencies when building.
117 • build/test improvements.
119 Added API to use external tile backends, allowing to plug-in alien
120 tilebackends, for GIMP/Krita/OSM or similar.
124 Tobias Ellinghaus, Øyvind Kolås, Barak Itkin and Martin Nordholts
126 Changes in GEGL 0.1.4
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129 save (chooses delegate save op automatically)
133 map-absolute (GIMP cage tool gsoc helper op)
137 fixed imagemagick fallback load op
138 fixed pipe based dcraw wrapper
139 GSoC 2010 ops: exp-combine, reinhard05, fattal02, mantiuk06, matting-levin
140 • Various source and build improvements.
141 • improvements towards threaded rendering
143 refactored away some constant overhead
144 made GeglBufferIterator API public
148 Michael Natterer, Øyvind Kolås, Vincent Untz, Kaja Liiv, Nils
149 Philippsen, Étienne Bersac, Martin Nordholts, Debarshi Ray, Danny
150 Robson, Stuart Axon, Kao, Mukund Sivaraman, Ruben Vermeersch, Barak
151 Itkin, Michael Muré, Mikael Magnusson, Patrick Horgan and Andy Gill.
153 Changes in GEGL 0.1.2
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155 • GeglLookup, configurable floating point lookup tables for lazy computation.
156 • Use GFileIOStream in GeglTileBackendFile.
157 • Optimizations: in-place processing for point filters/composers,
158 SIMD version of gegl:opacity, avoid making unneccesary sub-buffers,
159 removed some manual instrumentation from critical paths, improved
161 • Added xml composition/reference image based regression tests.
162 • Added performance tracking framework.
163 • Syntactic sugar using varargs for constructing gegl graphs from C.
164 • Build fixes on cygwin,
166 • Initial, but unstable code towards multithreading.
167 • Improvements to lua op in workshop.
168 • Added new resamplers upsize, upsharp, upsmooth, downsize, downsharp and
170 • Removed gegl:tonemap and gegl:normal ops.
173 Martin Nordholts, Sven Neumann, Nils Philippsen, Adam Turcotte,
174 Danny Robson, Michael Schumacher, Ruben Vermeersch, Øyvind Kolås,
175 Javier Jardón, Yaakov Selkowitz and Michael Natterer, Kaja Liiv
178 Changes in GEGL 0.1.0
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180 • Renamed gegl:load-buffer to gegl:buffer-source and gegl:save-buffer
181 to gegl:buffer-sink (but the old names still work)
182 • Represent colors using doubles instead of floats (this change is
183 independent from internal processing)
184 • Removed the GTK+ UI parts of the gegl binary and turned gegl into a
185 pure command line tool (which can still visualize stuff with help
186 help the SDL based display operation)
187 • Consider {x=G_MININT/2, y=G_MININT/2, width=G_MAXINT, height=G_MAXINT}
188 as the only valid region in which processing may occur. Processing
189 outside of this region is undefined behaviour.
190 • Added support for storing allocation stack traces for GeglBuffers
191 so that debugging buffer leaks becomes much easier
192 • Made small changes and cleanups of the public API, e.g.
193 • Removed gegl_node_adapt_child()
194 • Made GeglConfig an explicit object
195 • Removed most of the ifdeffed stuff to mask away internal
197 • Added gegl_rectangle_infinite_plane() and
198 gegl_rectangle_is_infinite_plane()
199 • Added new sampler GeglSamplerSharp
200 • Added format property to gegl:buffer-sink
201 • Cleaned up and made gegl:introspect work again
202 • Add a bunch of test cases using the automake test system (make check)
203 and also port buffer tests to automake
204 • General cleanups, bug fixes, increased robustness and improved
208 Øyvind Kolås, Sven Neumann, Étienne Bersac, Hubert Figuiere, Martin
209 Nordholts, Nicolas Robidoux, Michael Natterer, Ruben Vermeersch,
210 Kevin Cozens, Manish Singh, Gary V. Vaughan, James Legg,
211 Henrik Åkesson, Fryderyk Dziarmagowski, Ozan Caglayan and
215 Changes in GEGL 0.0.22
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218 • operation names are now prefixed, the ops in GEGL use 'gegl:' as prefix.
219 • gegl:opacity - combine value and aux mask input when both are available.
220 • gegl:src-in - deal correctly with extens.
221 • gegl:path - new op covering the stroke/fill needs of SVG.
222 • deprecated gegl:shift, the affine family of operations now
223 uses the same fast code paths for integer translations.
225 • Profiling motivated speed ups in data reading/writing.
226 • Remove left-over swapfiles from dead processes at startup.
228 • made gegl_node_add_child and gegl_node_remove_child public API. (#507298)
230 Vector path representation infrastructure, supporting poly lines and beziers
231 by default, the infrastructure allows extensions from applications with
232 other curve types (smooth curves, spiro curves and others.).
235 Hubert Figuiere, Sven Neumann, Øyvind Kolås, Michael Natterer,
236 Kevin Cozens, Sam Hocevar, Martin Nordholts, Manish Singh,
237 Étienne Bersac and Michael Schumacher.
239 Changes in GEGL 0.0.20
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241 • Build and code clean ups and fixes.
242 • RAW loader using libopenraw.
244 • Linear buffer support, amongst other things enabling GeglBuffer API access
245 to external linear buffers in memory.
246 • Reworked samplers using a shared caching neighbourhood infrastructure.
247 • YAFR - a new resampler contributed by Nicolas Robidoux.
249 • Added SVG parsing capability (no serialisation yet).
251 • Marked user visible strings for translation.
252 • Added a fill operation that renders a path.
255 Martin Nordholts, Øyvind Kolås, Sam Hocevar, Manish Singh, Hubert Figuiere,
256 Sven Neumann and yahvuu at gmail.com.
258 Changes in GEGL 0.0.18
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260 • Configuration both from commandline arguments and at runtime.
262 • New raw tiled raster file format, used both as swap and stored buffers.
263 • Sharing between processes through synced swap.
264 • Babl powered scan iteration infrastructure for efficient access.
265 • Cubic and lanczos samplers re-enabled.
267 • Use scan iterator for point-filter, point-composer and point-render base
268 classes internally for minimal amount of copies.
269 • Optimized variants of some point and compositing operations reimplemented
270 using a new data type /g4float/ that allows writing CPU agnostic vectorized
272 • New temporal filter base class, for operations operating on color values from
273 neighbouring frames in a video stream.
274 • Autogenerated operation reference installed for use with devhelp.
275 • New operations: write-buffer, v4l, color-temperature.
278 Øyvind Kolås, Kevin Cozens, Sven Neumann, Manish Singh, Martin Nordholts,
279 Étienne Bersac, Hans Petter Jansson, Jan Heller, dmacks@netspace.org,
280 Sven Anders, Hubert Figuiere and Geert Jordaens.
282 Changes in GEGL 0.0.16
283 ⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺
284 • Install headers for development of external operation plug-ins.
285 • Added rowstride argument to gegl_buffer_set ()
286 • Made it possible for sink operations to do chunkwise processing
287 through GeglProcessor.
288 when processed using a GeglProcessor.
289 • constification of GeglRectangles and babl formats.
290 • Build and dist fixes, plugged annoying buffer leaks, GEGL now
294 Øyvind Kolås, Étienne Bersac, Kevin Cozens, Sven Neumann,
295 Manish Singh, Michael Natterer, Hans Brauer, Deji Akingunola,
296 Bradley Broom and Tor Lillqvist.
298 Changes in GEGL 0.0.14
299 ⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺
300 • Relicensed under LGPLv3+.
301 • Per node caches (faster recomputation when properties of nodes in
303 • Sampler framework for interpolation.
304 • Modified API for retrieving scaled buffers gegl_node_blit / gegl_buffer_get.
305 • Renamed XML serialization and parsing API to be descendants of GeglNode.
306 • Progress monitoring for GeglProcessor
307 • New operation base class GeglOperationAreaFilter
308 • API reference installed and browsable using devhelp.
309 • New operations: ff-load, mono-mixer, contrast-curve, save-pixbuf,
310 compositing ops from SVG-1.2 draft, value-invert, convert-format,
311 bilateral-filter, snn-mean
314 Étienne Bersac, Kevin Cozens, Manish Singh, Mark Probst, Martin Nordholts,
315 Michael Schumacher, Mukund Sivaraman, Shlomi Fish, Tor Lillqvist and
319 Changes in GEGL 0.0.12
320 ⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺
321 • Swapping out of image pyramid.
322 • Speedups to text rendering.
323 • GEGL compiles on win32
324 • GEGL_SWAP now specifies swapdir location.
325 • Small refactorings of public API.
326 • Changed the XML parser/serializer to not use attributes for node properties.
327 • Improvements to documentation.
328 • Automagic build environment for operations simplified.
329 • Internal API for saving/loading GeglBuffers to/from disk.
330 • Ruby, C# and Python bindings added to version control system
331 (not included in distributed tarball)
335 Kevin Cozens, Michael Schumacher. Sven Neumann and Øyvind Kolås,
337 Changes in GEGL 0.0.8
338 ⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺
339 The GEGL 0.0.8 release tarball didn't build properly and was removed, the
340 0.0.10 release replaces the 0.0.8 release.
343 Changes in GEGL 0.0.6
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346 • handling of relative/absolute path names for XML.
347 • merged GeglNode and GeglGraph classes.
348 • build fixes for Win32 and FreeBSD
349 • temporarily disabled custom cairo in test application.
350 • png and EXR improvements.
353 Dominik Ernst, Kevin Cozens, Øyvind Kolås and Michael Schumacher.
356 Changes in GEGL 0.0.4
357 ⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺
358 This was the first public release of GEGL.
360 • 8bit, 16bit integer and 32bit floating point, RGB, CIE Lab, YCbCr and naive
362 • Extendable through plug-ins.
363 • XML, C and Python interfaces.
364 • Memory efficient evaluation of subregions.
365 • Tiled, sparse, pyramidial and larger than RAM buffers.
366 • Rich core set of processing operations
367 • PNG, JPEG, SVG, EXR, RAW and other image sources.
368 • Arithmetic operations, porter duff compositing operations, SVG blend
369 modes, other blend modes, apply mask.
371 • Basic color correction tools.
372 • Most processing done with High Dynamic Range routines.
373 • Text layouting using pango
376 Dominik Ernst, Kevin Cozens, Manish Singh, Martin Nordholts, Michael Natterer.
377 Philip Lafleur, Sven Neumann and Øyvind Kolås.
379 Changes in GEGL 0.0.x
380 ⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺
382 Calvin Williamson, Caroline Dahloff Daniel Rogers, Garry R. Osgood, Jay Cox