/usr/share/doc/libgegl-dev/NEWS.html

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<body class="article">
<div id="header">
</div>
<div id="content">
<div class="sect1">
<h2 id="_gegl_0_3_30_2018_03_19">GEGL-0.3.30 2018-03-19</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_geglbuffer">GeglBuffer:</h3>
<div class="paragraph"><p>gegl_buffer_get now treats the final argument, which used to control only abyss
behavior as a bit-field that also can have interpolation method to use when
scaling down from the next larger mipmap level, valid values are
GEGL_BUFFER_FILTER_NEAREST, GEGL_BUFFER_FILTER_BILINEAR,
GEGL_BUFFER_FILTER_BOXFILTER and GEGL_BUFFER_FILTER_AUTO.</p></div>
<div class="paragraph"><p>All scaling is now done on linear data, making future results of mipmap
computations more valid as well as providing correct results for scaled down
thumbnails in user interfaces. Optimized code paths have been added for 8bit
buffers (using 12bit linear as processing space) and other formats like 16bit
float are now correctly handled by going through generic code paths.</p></div>
<div class="paragraph"><p>The scaling code paths has also been instrumented and optimized for
performance. Improvements to pixel data fetching and setting functions leads to
performance boosts across many GEGL operations, as well as display code paths
in GEGL using applications. For some performance critical display cases
performance should have improved 2-3x over last release.</p></div>
<div class="paragraph"><p>Improvements to logic switching to boxfiltering behavior and improve cubic
samplers box filtering by using a linear sampler and a nearest sampler for the
boxfiltering for the linear sampler. This slows down scaling down with the
cubic sampler by half, but is less prone to aliasing, while keeping the faster
code paths for the fast but not as bad as nearest - bilinear.</p></div>
<div class="paragraph"><p>gegl_buffer_copy gegl_buffer_clear and gegl_buffer_set color now only
emit a single changed signal on the buffer.</p></div>
</div>
<div class="sect2">
<h3 id="_operations">Operations:</h3>
<div class="paragraph"><p>c2g and stress have gained the ability to toggle the influence of the shadow
neighborhood or not, the new default is to not improve shadow detail; yielding
a bit more natural renditions.</p></div>
<div class="paragraph"><p>color-to-alpha now contains improvements from experiment in workshop which is
gone.</p></div>
<div class="paragraph"><p>Fixed crahses in median-blur.</p></div>
</div>
<div class="sect2">
<h3 id="_transform_ops">Transform ops:</h3>
<div class="paragraph"><p>Only rasterize inside the transformed polygon, saving cpu. The optimizations
mentioned for GeglBuffer giving boosts and improved quality.</p></div>
</div>
<div class="sect2">
<h3 id="_new_ops">New ops:</h3>
<div class="paragraph"><p>Mean-curvature blur.</p></div>
<div class="paragraph"><p>News ops in workshop:</p></div>
<div class="paragraph"><p>color-overlay, enlarge, inpaint, domain-transform, recursive=transform.</p></div>
<div class="paragraph"><p>Contributors for this release were: Alan Mortensen, Alexandre Prokoudine,
Debarshi Ray, Dimitris Spingos, Ell, Felipeek, Inaki Larranaga Murgoitio,
Jehan, Jordi Mas, Mario Blättermann, Michael Natterer, Øyvind Kolås, Piotr
Drąg, Rūdolfs Mazurs, and Thomas Manni.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_28_2018_01_23">GEGL-0.3.28 2018-01-23</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_core">Core</h3>
<div class="paragraph"><p>A new GeglStats object, which provides realtime statistics/profiling for use
in UIs.  Automatically copy-on-write clone input buffers for auto-threading of
operations.</p></div>
</div>
<div class="sect2">
<h3 id="_buffer">Buffer</h3>
<div class="paragraph"><p>Many significant optimizations as well as a correctness improvement, mipmap
scaling and rendering is now done correctly in linear space, thus GIMP will not
only produce the right results but also avoid gamma errors in thumbnails and
viewport.</p></div>
<div class="paragraph"><p>Among the signifcant performance boosters are per buffer-instance tile queues,
adaptive sampler pre-fetch caching and dedicated code paths for fetching
columns of pixels. Along with many multi-threadedness improvements due to more
significant testing.</p></div>
</div>
<div class="sect2">
<h3 id="_operations_2">Operations</h3>
<div class="paragraph"><p>Mipmap tuning and performance improvements to gaussian blur
added dedicated code paths for nearest sampler in transform ops.
more generic RGBE file handling
ff-load: permit decoding audio files as well as video files.
various code cleanups</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_28_2018_01_23_2">GEGL-0.3.28 2018-01-23</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_core_2">Core</h3>
<div class="literalblock">
<div class="content">
<pre><code>A new GeglStats object, which provides realtime statistics/profiling for use
in UIs.  Automatically copy-on-write clone input buffers for auto-threading of
operations.</code></pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_buffer_2">Buffer</h3>
<div class="literalblock">
<div class="content">
<pre><code>Many significant optimizations as well as a correctness improvement,
mipmap scaling and rendering is now done correctly in linear space,
thus GIMP will not only produce the right results but also avoid gamma
errors in thumbnails and viewport.</code></pre>
</div></div>
<div class="literalblock">
<div class="content">
<pre><code>Among the signifcant performance boosters are per buffer-instance tile queues,
adaptive sampler pre-fetch caching and dedicated code paths for fetching
columns of pixels. Along with many multi-threadedness improvements due to
more significant testing.</code></pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_operations_3">Operations</h3>
<div class="literalblock">
<div class="content">
<pre><code>Mipmap tuning and performance improvements to gaussian blur
added dedicated code paths for nearest sampler in transform ops.
more generic RGBE file handling
ff-load: permit decoding audio files as well as video files.
various code cleanups</code></pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_26_2017_12_14">GEGL-0.3.26 2017-12-14</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_core_3">Core</h3>
<div class="paragraph"><p>Make gegl-chain parser more robust wrt parsing babl formats, and improved -
translatable - error handling.</p></div>
<div class="paragraph"><p>Add capabilitity to use per thread input buffers for multi-threaded
filter/composer/composer3 ops, this reduces contention over the buffer tile
locks and improves multi-threaded performance in some cases without reducing it
for the majority of cases.</p></div>
</div>
<div class="sect2">
<h3 id="_buffer_3">Buffer</h3>
<div class="paragraph"><p>Threads no longer blocked while locking tiles, and fixes to gegL_buffer_copy.
Better clone accounting in tile cache.</p></div>
</div>
<div class="sect2">
<h3 id="_operations_4">Operations</h3>
<div class="literalblock">
<div class="content">
<pre><code>  exp-combine: code cleanup/simplification
  libraw: make bounding box handling consistent with rest of code.
  transform ops: re-enabled multi-threading, reduced some format
conversions and added wiggle-room in required/invalidated calculations.</code></pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_24_2017_11_24">GEGL-0.3.24 2017-11-24</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_core_4">Core</h3>
<div class="paragraph"><p>Flush opencl side buffers before multi threaded iteration for point ops, making
multi threading + opencl work.</p></div>
<div class="paragraph"><p>Add meta-op graph case to gegl_operation_get_source_node</p></div>
<div class="paragraph"><p>Versioning of installed .mo files restored.</p></div>
<div class="paragraph"><p>Enable multi-threaded processes by default.</p></div>
<div class="paragraph"><p>Stop enabling opencl by default, performance with beignet is worse than
multi-threading, and with nvidia blank results are being observed in GIMP;
maybe improved opencl kernels would make it competetive with multi threaded
cpu?</p></div>
<div class="paragraph"><p>Deprecate gegl_operation_context_get_source, replace usage with
gegl_operation_context_get_object.</p></div>
</div>
<div class="sect2">
<h3 id="_buffer_4">Buffer</h3>
<div class="paragraph"><p>More multi-thread proofing.</p></div>
</div>
<div class="sect2">
<h3 id="_operations_5">Operations</h3>
<div class="paragraph"><p>median-blur: now op coming out of the GEGL workshop.</p></div>
<div class="paragraph"><p>exposure: increase old lingering constant enabling larger range of valid inputs.</p></div>
<div class="paragraph"><p>transform: turn off multi-threading, it was currently degrading overall
performance.</p></div>
<div class="paragraph"><p>ppm-load: fix file-loader registration.</p></div>
</div>
<div class="sect2">
<h3 id="_contributors">Contributors</h3>
<div class="paragraph"><p>Debarshi Ray, Ell, Jordi Mas, Øyvind Kolås, Richard Kreckel, Thomas Manni,
Marco Ciampa, Alexandre Prokoudine and Piotr Drąg.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_22_2017_11_12">GEGL-0.3.22 2017-11-12</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_core_5">Core</h3>
<div class="paragraph"><p>Refactored graph traversals to use topological sorts.</p></div>
<div class="paragraph"><p>Completely avoid loading plug-ins .so with -gpl3 in filename unless the
application using GEGL explicitly has enabled GPL3 operations.</p></div>
<div class="paragraph"><p>Replace custom property redirection for meta-ops with GBinding.</p></div>
<div class="paragraph"><p>Reduced temporary buffer allocation overhead in mipmap downscaling.</p></div>
<div class="paragraph"><p>Do divide and conquer on higher level in point filter/composer op
base-classes.</p></div>
<div class="paragraph"><p>Migrated from intltool to GNU gettext</p></div>
</div>
<div class="sect2">
<h3 id="_buffer_5">Buffer</h3>
<div class="paragraph"><p>Tweak nohalo and lohalo samplers to be orders of magnitude faster for scale
factors &gt; ~3% while also removing possible hangs.</p></div>
</div>
<div class="sect2">
<h3 id="_operations_6">Operations</h3>
<div class="paragraph"><p>Improved threading awareness/capabilities of gegl:copy-buffer, gegl:wind,
gegl:color-enhance, gegl:photocopy, gegl:matting-levin, npd, contrast-curve,
noise-spread, noise-pick, noise- slur, transform ops.</p></div>
<div class="paragraph"><p>Use of more modern GLib APIs like g_clear_ and make use of the fact that g_free
is already NULL safe.</p></div>
<div class="paragraph"><p>Fixed grayscale behavior of gegl:noise-hurl.
OpenCL vs CPU consistency fix for gegl:threshold, and optimization of
gegl:wavelet-blur by decomposing to two 1d passes.
median-blur, perform binning in a more perceptual space.
hue-chroma: added OpenCL support
threshold: make opencl match cpu
wavelet-blur: decompose for performance
illusion: performance improvement permitting partial result computation
grey: add fast path for alpha-less input buffers.</p></div>
<div class="paragraph"><p>new ops in workshop: spherize, color-to-alpha-plus, shadows-highlights</p></div>
</div>
<div class="sect2">
<h3 id="_with_contributions_from">With contributions from:</h3>
<div class="paragraph"><p>Debarshi Ray, Ell, Jehan, Jordi Mas, Marco Ciampa, Massimo, Nicolas Robidoux,
Niels De Graef, Øyvind Kolås, Piotr Drąg and Thomas Manni.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_20_2017_08_15">GEGL-0.3.20 2017-08-15</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_core_6">Core</h3>
<div class="paragraph"><p>Increased max thread limit to 64 threads, and improvements to both buffer and
progress reporting thread safety, point sized buffers are handled better and
COW-tiles are now lock free. Serialization and parsing has been made more
robust.</p></div>
</div>
<div class="sect2">
<h3 id="_operations_7">Operations</h3>
<div class="paragraph"><p>Improved property meta data for many opertions, two new operations gegl:spiral and gegl:mix.</p></div>
<div class="paragraph"><p>ff-load/ff-save: make audio frame handling more generic.</p></div>
<div class="paragraph"><p>c2g, avoid possible infinite loop on transparent areas.</p></div>
<div class="paragraph"><p>Fixes to gaussian-blur and ops core for multi-threaded blurring.</p></div>
</div>
<div class="sect2">
<h3 id="_new_binary">New binary</h3>
<div class="paragraph"><p>gcut, a video editing engine for GEGL has also been added to the repo. It
permits reusing image filters written as GEGL operations for video, and basic
motion graphics. The engines data model is currently fully functional for
text-file based input and offline rendering, an experimental user interface for
this video editing system is also currently being worked on.</p></div>
</div>
<div class="sect2">
<h3 id="_contributors_2">Contributors</h3>
<div class="paragraph"><p>Øyvind Kolås, Michael Natterer, Jehan, Dimitris Spingos, Piotr Drąg, Alexandre
Prokoudine, Eugene Hopkinson, Ell, Thomas Manni, Jordi Mas, Edward E, Jan
Vesely, Arfrever Frehtes Taifersar Arahesis.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_18_2017_05_31">GEGL-0.3.18 2017-05-31</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_operations_8">Operations</h3>
<div class="paragraph"><p>warp: performance improvements
displace, map-absolute, map-relative: abyss handling and more
buffer-source: improved invalidation signalling
text,path: use endian agnostic cairo pixel formats
opencl implementations of: noise-hsv, diffraction-patterns,
gaussian-blur-selective and motion-blur-linear.</p></div>
</div>
<div class="sect2">
<h3 id="_core_7">Core</h3>
<div class="paragraph"><p>rerrange connection handling for nodes when changing operation.
gegl-path: improvements for corner cases found in warp
add validation of roi in gegl_operation_get_bounding_box</p></div>
</div>
<div class="sect2">
<h3 id="_contributors_3">Contributors</h3>
<div class="paragraph"><p>Ell, Anton Gorenko, Øyvind Kolås, Piotr Drąg, Mario Blättermann</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_16_2017_05_15">GEGL-0.3.16 2017-05-15</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_core_8">Core</h3>
<div class="paragraph"><p>Improvements to gegl-chain serialization and documentation.
Remove remnants of deprecated gegl-graph syntactic sugar for C</p></div>
</div>
<div class="sect2">
<h3 id="_buffer_6">Buffer</h3>
<div class="paragraph"><p>Avoid choking on 0x0 rectangles, handle implicit mipmap generation for 15bpc
and half precision float pixelformate.</p></div>
</div>
<div class="sect2">
<h3 id="_operations_9">Operations</h3>
<div class="paragraph"><p>Many operations have gotten an additiona meta-ui description layer sprinkled on
top. And The C source code of the operations is no longer kept as a meta-data
key on the binary, with a shrink of ~10mb it might even impact startup time.</p></div>
<div class="paragraph"><p>New operations: newsprint/spachrotyzer.
Moved out of workshop: unpremultiply
New in workshop: spiral
drop-shadow: improve edge mode of blur, to work on tiny radiuses.
transform-ops: ported to the new chanting system
ff-load: readjust frame accurate mp4 seeking for newer ffmpeg.
file-loading ops: stop some crashes happening due to invalid/lacking properties.
npy-save, jpg-save, png-save: port to GIO.
raw-load: rotate bounding box based on image meta-data.</p></div>
</div>
<div class="sect2">
<h3 id="_tests">Tests</h3>
<div class="paragraph"><p>Improve testing by using hashes of autogenerated reference images for
regression testing, thus causing fewer manual steps to add an op with its
tests. Some XML based tests removed as they were fully superceded by new
automated tests.</p></div>
</div>
<div class="sect2">
<h3 id="_documentation">Documentation</h3>
<div class="paragraph"><p>Replaced dynamic client side js content with static operation gallery,
incremental improvements to website content. This includes updates to the
meta-data in the .C files of operations.</p></div>
</div>
<div class="sect2">
<h3 id="_contributors_4">Contributors</h3>
<div class="paragraph"><p>Daniel Mustieles, Debarshi Ray, Dimitris Spingos (Δημήτρης Σπίγγος), Ell, Jan
Vesely, Jean-Baptiste Mayer, Marco Ciampa, Mario Blättermann, Martin Blanchard,
Michael Natterer, nick black, Øyvind Kolås, Piotr Drąg, Thomas Manni,</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_14_2017_02_27">GEGL-0.3.14 2017-02-27</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_buffer_7">Buffer</h3>
<div class="ulist"><ul>
<li>
<p>
changed gegl_buffer_set to accept mipmap level scaled rectangles, similar to
  gegl_buffer_get and gegl_buffer_iterator_new/_add
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_operations_10">Operations</h3>
<div class="ulist"><ul>
<li>
<p>
made mipmap preview rendering capable: gblur-1d/gaussian blur, sinus,
  transform (rotate, scale, perspective etc), snn-mean
</p>
</li>
<li>
<p>
noise-perlin: remove unused random seed property
</p>
</li>
<li>
<p>
exposure: remove gamma property
</p>
</li>
<li>
<p>
save-pixbuf: allocate less temporary memory
</p>
</li>
<li>
<p>
load-pixbuf: fix rowstride related crasher
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_translations">Translations</h3>
<div class="paragraph"><p>Slovenian, Russian, Greek, Polish and Catalan translations updated.</p></div>
</div>
<div class="sect2">
<h3 id="_contributors_5">Contributors</h3>
<div class="paragraph"><p>Alexandre Prokoudine, Debarshi Ray, Dimitris Spingos (Δημήτρης Σπίγγος), Jordi
Mas, Martin Srebotnjak, Øyvind Kolås</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_12_2017_02_13">GEGL-0.3.12 2017-02-13</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_operations_11">Operations</h3>
<div class="ulist"><ul>
<li>
<p>
new ops: edge-neon, image-gradient, slic, wavelet-blur, waterpixels, watershed
</p>
</li>
<li>
<p>
moved from workshop to common: color-warp, component-extract
</p>
</li>
<li>
<p>
text: remove now unneeded work-around, ability to control vertical
   positioning, permit &lt;1.0 font-sizes, handle text-color alpha, other
   improvements.
</p>
</li>
<li>
<p>
lens-distortion: default to transparent background
</p>
</li>
<li>
<p>
crop: bounding box computation simplifications
</p>
</li>
<li>
<p>
noise-rgb: add gamma and distribution properties
</p>
</li>
<li>
<p>
dither: renamed from color-reduction and improved ui/property controls.
</p>
</li>
<li>
<p>
high-pass: do inversion, over and contrast in non-linear RGB
</p>
</li>
<li>
<p>
noise-rgb: new linear and gaussian properties
</p>
</li>
<li>
<p>
transform: added a clip-to-input property
</p>
</li>
<li>
<p>
raw-load: improvements to handling of Sony&#8217;s ARW files
</p>
</li>
<li>
<p>
exposure: replaced offset with black-level
</p>
</li>
<li>
<p>
moved from common to workshop: bilateral-filter-fast
</p>
</li>
<li>
<p>
new workshop ops: bayer-matrix, linear-sinusoid,
 shadows-highlights, integral-image, segment-kmeans,
</p>
</li>
<li>
<p>
removed ops: gaussian-blur-old
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_core_9">Core</h3>
<div class="ulist"><ul>
<li>
<p>
less locale dependent serializations/parameters
</p>
</li>
<li>
<p>
fix local raw file detection of ARW and CR2 files
</p>
</li>
<li>
<p>
gegl_memset_pattern performance improvement
</p>
</li>
<li>
<p>
clean up the way we drop references and free memory
</p>
</li>
<li>
<p>
static caching of some frequently used babl formats/types.
</p>
</li>
<li>
<p>
mipmap preview render code fixes for the following subset of operations: point
   operations (filter, and composer subclasses), integer translate, crop.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_translations_2">Translations</h3>
<div class="paragraph"><p>Catalan, German, Greek, Italian, Polish, Portuguese, Slovenian, Swedish translations updated</p></div>
</div>
<div class="sect2">
<h3 id="_contributors_6">Contributors</h3>
<div class="paragraph"><p>Piotr Drąg, Marco Ciampa, Sergey "Shnatsel" Davidoff, Ell, Øyvind Kolås, Anders
Jonsson, Thomas Manni, Jordi Mas, Michael Natterer, Peter O&#8217;Regan, Jehan Pagès,
Sebastian Rasmussen, Debarshi Ray, Dimitris Spingos (Δημήτρης Σπίγγος),
Martin Srebotnjak,Miroslav Talasek.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_10_2016_11_06">GEGL-0.3.10 2016-11-06</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_buffer_8">buffer</h3>
<div class="ulist"><ul>
<li>
<p>
stop caching tiles in a singly-linked list; use a hash table only
</p>
</li>
<li>
<p>
adjust box filtering threshold of linear/cubic samplers
</p>
</li>
<li>
<p>
add const qualifier to input rect parameter of gegl_tile_backend_set_extent()
</p>
</li>
<li>
<p>
don&#8217;t acquire tile storage lock in NN sampler when not using multithreading
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_operations_12">operations</h3>
<div class="ulist"><ul>
<li>
<p>
rgbe-load: add image/x-hdr mimetype
</p>
</li>
<li>
<p>
map-relative: sample from the pixel centers for integer vectors
</p>
</li>
<li>
<p>
warp: fix and rework the operation, now matches more closely the iWarp behaviour
</p>
</li>
<li>
<p>
color-reduction: add arithmetic dithers; inline for loop for each different method
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_binary">binary</h3>
<div class="paragraph"><p>speed up some commands by not intializing opencl</p></div>
</div>
<div class="sect2">
<h3 id="_json">json</h3>
<div class="paragraph"><p>make bundleable</p></div>
</div>
<div class="sect2">
<h3 id="_translations_3">translations</h3>
<div class="paragraph"><p>German, Greek, Italian, Occiatan, Polish, Portuguese, Russian, Serbian, Slovenian, Spanish updated</p></div>
</div>
<div class="sect2">
<h3 id="_contributors_7">Contributors</h3>
<div class="paragraph"><p>Simon Budig, Marco Ciampa, Piotr Drąg, Ell, Øyvind Kolås, Roman
Lebedev, Daniel Mustieles, Michael Natterer, Jehan Pagès, Martin
Pelikán, Yolanda Álvarez Pérez, Alexandre Prokoudine, Tiago Santos,
Dimitris Spingos, Martin Srebotnjak, Cédric Valmary, Милош Поповић.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_8_2016_06_14">GEGL-0.3.8 2016-06-14</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_buffer_9">Buffer</h3>
<div class="ulist"><ul>
<li>
<p>
add box filtering downsampling paths to linear and cubic resamplers to improve default results
</p>
</li>
<li>
<p>
clear hot tile when removing a tile from the cache
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_operations_13">operations</h3>
<div class="ulist"><ul>
<li>
<p>
added: vhsfix (workshop), gegl-gegl (commandline syntax)
</p>
</li>
<li>
<p>
exr-save: port from deprecated chanting system
</p>
</li>
<li>
<p>
ff-save: increase max output packet size from 200kb to 1mb
</p>
</li>
<li>
<p>
gegl-path: add ability to compute y coordinate for a given x
</p>
</li>
<li>
<p>
transform: treat infinite and empty rectangles correctly
</p>
</li>
<li>
<p>
webp: port webp-save to GIO for URI handling
</p>
</li>
<li>
<p>
ops progress:
</p>
</li>
<li>
<p>
add gegl_operation_progress function to report processing progress
</p>
</li>
<li>
<p>
use the new function in cartoon and distance-transform ops
</p>
</li>
<li>
<p>
ops metadata:
</p>
</li>
<li>
<p>
remove custom multiline paramspec
</p>
</li>
<li>
<p>
set multiline ui_meta on more ops
</p>
</li>
<li>
<p>
add reference meta and use it in various ops
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_gegl_binary">gegl-binary</h3>
<div class="ulist"><ul>
<li>
<p>
add simple video filtering
</p>
</li>
<li>
<p>
encode audio with video
</p>
</li>
<li>
<p>
permit dragging and zooming in more ui states
</p>
</li>
<li>
<p>
deal correctly with integers in ui
</p>
</li>
<li>
<p>
show prop editor for operation if op chain passed at commmandline
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_core_10">core</h3>
<div class="ulist"><ul>
<li>
<p>
gegl-chain
</p>
</li>
<li>
<p>
implement keyframing of strings
</p>
</li>
<li>
<p>
suggest possible ops in warninge/errors
</p>
</li>
<li>
<p>
gegl-node: relay property change notifies from operation to node
</p>
</li>
<li>
<p>
gegl-serialize:
</p>
</li>
<li>
<p>
improve error handling for parsing of properties
</p>
</li>
<li>
<p>
start handling relative coordinates
</p>
</li>
<li>
<p>
use path instead of curve
</p>
</li>
<li>
<p>
json: misc improvements and fixes
</p>
</li>
<li>
<p>
opencl: fix RGB luminance constants
</p>
</li>
<li>
<p>
docs: fixes, update some info in directory overview
</p>
</li>
<li>
<p>
handlers:
</p>
</li>
<li>
<p>
allow registration of operations by MIME type
</p>
</li>
<li>
<p>
register MIME types for loaders
</p>
</li>
<li>
<p>
guess file types by sniffing content
</p>
</li>
<li>
<p>
build: fix luajit detection
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_8">Contributors</h3>
<div class="paragraph"><p>Timm Bäder, Martin Blanchard, Mario Blättermann, Ell, Piotr Drąg,
Michael Henning, Øyvind Kolås, Hartmut Kuhse, Michael Natterer,
Nils Philippsen, Alexandre Prokoudine, Debarshi Ray, Kristian Rietveld,
Dimitris Spingos, Martin Srebotnjak, Pino Toscano, Cédric Valmary,
Jan Vesely</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_6_2016_03_12">GEGL-0.3.6 2016-03-12</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_buffer_10">buffer</h3>
<div class="paragraph"><p>COW (Copy on Write) handling for gegl_buffer_clear.</p></div>
</div>
<div class="sect2">
<h3 id="_operations_14">operations</h3>
<div class="ulist"><ul>
<li>
<p>
added: saturation, gaussian-blur-selective
</p>
</li>
<li>
<p>
ff-load/ ff-save: updated to work with ffmpeg-3.0,configuration of
      codec/format.  misc code cleanup, and meta data improvements, gio
      (url loading) support in more loaders.
</p>
</li>
<li>
<p>
convolve-generic: optimized paths for common parameters and 3x3 size.
</p>
</li>
<li>
<p>
removed: dcraw-load
</p>
</li>
<li>
<p>
jp2, webp, svg::
        make use of GIO for URI handling
</p>
</li>
<li>
<p>
XML: permit serializing a segment/chain of the graph
</p>
</li>
<li>
<p>
gegl-binary:
</p>
</li>
<li>
<p>
permit setting properties of commandline passed ops, as well as
      connecting buffers to aux and other input pads.
</p>
</li>
<li>
<p>
zoom in/out at cursor position on scroll wheel events.
</p>
</li>
<li>
<p>
processing: improvements to meta-ops
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_9">Contributors</h3>
<div class="paragraph"><p>Øyvind Kolås, Thomas Manni, Michael Natterer, Nils Philippsen, Debarshi
Ray, Martin Blanchard, Justin Lecher, Massimo Valentini, Jonathan Tait,
Mukund Sivaraman, Alexandre Prokoudine, Piotr Drąg, Nanley Chery, Colin
Waters</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_4_2015_11_24">GEGL-0.3.4 2015-11-24</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
build: do not install examples in path
</p>
</li>
<li>
<p>
ff-save fully store all in-flight codec contexts before closing files
</p>
</li>
<li>
<p>
ff-load improvements to seeking accuracy
</p>
</li>
<li>
<p>
transform: make fast paths skip pixel format conversions
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_contributors_10">Contributors</h3>
<div class="paragraph"><p>Øyvind Kolås, Debarshi Ray and Nils Philippsen</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_2_2015_11_22">GEGL 0.3.2 2015-11-22</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_operations_15">Operations</h3>
<div class="ulist"><ul>
<li>
<p>
new operations: libraw based raw loading op, tiff-save and tif-load, maze, sepia
</p>
</li>
<li>
<p>
ff-load and ff-save revived, with support from thegrid.io
</p>
</li>
<li>
<p>
apply-lens uses less memory, higher precision computation.
</p>
</li>
<li>
<p>
disable automatic threading on many ops where it fails
</p>
</li>
<li>
<p>
force more operations to prefer operating on linear RGB data for more
accurate/physical processing.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_buffer_11">Buffer:</h3>
<div class="ulist"><ul>
<li>
<p>
implement abyss paremeter on gegl_buffer_copy and gegl_buffer_blit
</p>
</li>
<li>
<p>
Added start of a microraptor gui based image viewer/non destructive editor.
</p>
</li>
<li>
<p>
Optimizations to scaled blitting (speeds up most GEGL UIs a bit)
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributiors">Contributiors</h3>
<div class="paragraph"><p>Alexandre Prokoudine, André Tupinambá, Claude Paroz, Daniel Mustieles,
Debarshi Ray, Dimitris Spingos, Elle Stone, Jehan, Jordi Mas, Marco Ciampa,
Martin Blanchard, Martin Srebotnjak, Massimo Valentini, Michael Henning,
Michael Natterer, Necdet Yücel, Pedro Albuquerque, Piotr Drąg, Roman Lebedev,
Sven Neummann, Thomas Manni, Vilson Vieira, akash akya and Øyvind Kolås.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_3_0_2015_06_03">GEGL-0.3.0 2015-06-03</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Improvements to thread safety and parallelism.
</p>
</li>
<li>
<p>
Lower overhead graph travesal due from rewrite of visitors
</p>
</li>
<li>
<p>
OpenCL support now enabled by default when detected.
</p>
</li>
<li>
<p>
Experimental multithreading, enable by setting GEGL_THREADS=&lt;number of threads&gt; in the environment.
</p>
</li>
<li>
<p>
Experimental mipmap rendering, which permits transparent rendering of previews on smaller sized versions, enable by setting GEGL_MIPMAP_RENDERING=true in the environment.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_operations_16">Operations</h3>
<div class="ulist"><ul>
<li>
<p>
new operations: alien-map, antialias, apply-lens, bilateral-filter,
     bump.map, cartoon, channel-mixer, color-enhance, color-exchange,
     color-reduction, color-rotate, convolution-matrix, copy-buffer, cubism,
     deinterlace, diffraction-patterns, distance-transform, displace, edge,
     emboss, engrave, exposure, fractal-trace, high-pass, image-compare,
     illusion, invert-gamma, lens-flare, linear, linear-gradient, mosaic,
     motion-blur-circular, motion-blur-zoom, noise-cell noise-cie-lch,
     noise-hsv, noise-hurl, noise-pick, noise-rgb, noise-simplex, noise-spread,
     n-point deformation ops, oilify, panorama-projection, photocopy, plasma,
     radial-gradient, red-eye-removal, scale-size-keep-aspect, softglow,
     stretch-contrast, texturize-canvas, tile-glass, tile-seamless, tile-paper,
     tile, warp, whirl-pinch, wind, cache, cast-format, lcms-from-profile,
     npy-save, webp-load, webp-save, scale-ratio, scale-size, seamless-clone,
     sinus, supernova, value-propagate, video-degradation
</p>
</li>
<li>
<p>
reimplementation of gaussian-blur faster and more accurate
</p>
</li>
<li>
<p>
support for using URIs in image loaders
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_buffer_12">Buffer</h3>
<div class="ulist"><ul>
<li>
<p>
New default tile backend, doing disk writes in a separate thread.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_11">Contributors</h3>
<div class="paragraph"><p>Albert F, Alexandre Prokoudine, Alexia Death, Akash Akya, Anders Jonsson,
Andika Triwidada, Andreas Fischer, Angh, Awaw Fumin, Barak Itkin, Bruce
Cowan, Carlos Zubieta, Cédric Valmary, Chris Leonard, Christian Kirbach,
Clayton Walker, Daniel Mustieles, Daniel Nylander, Daniel Sabo, Debarshi Ray,
Denis Knoepfle, Dimitris Papavasiliou, Dimitris Spingos, Djavan Fagundes, Dov
Grobgeld, Elle Stone, Enrico Nicoletto, Felix Ulber, Florian Klemme,
Francisco Vila, Fran Diéguez, Georges Basile Stavracas Neto, Hans Lo, Harald
Korneliussen, Hartmut Kuhse, Inaki Larranaga Murgoitio, Isaac Wagner, Jan
Vesely, Jan Vesely, Jehan, Jon Nordby, Jordi Mas, Kalev Lember, Kristjan
Schmidt, Marco Ciampa, Marek Dvoroznak, Maria Mavridou, Martijn van Beers,
Martin Nordholts, Martin Srebotnjak, Massimo Valentini, Matej Urbančič,
Maxime Nicco, Michael Henning, Michael Muré, Michael Natterer, Mikael
Magnusson, Miroslav Talasek, Muhammet Kara, Mukund Sivaraman, Nana Chery,
Nick Black, Nicolas Robidoux, Nils Philippsen, Norm Murray, Pascal Giessler,
Piotr Drąg, Quentin Glidic, Rafael Ferreira, Rasmus, RPG, Rūdolfs Mazurs,
Samir Ribic, Samuel Pitoiset, sebul, Simon Budig, Sven Claussner, Téo Mazars,
Thomas Manni, Tim Lunn, Tim Mooney, Ting-Wei Lan, Tom Stellard, Ulf-D.
Ehlert, Vadim Rutkovsky, Victor Oliveira, Ville Sokk, Vincent Untz, Yongjia
Zhang, Yongjia Zhang, Øyvind Kolås and 周 周.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_2_0_2012_04_02">GEGL-0.2.0 2012-04-02</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
OpenCL support
</p>
</li>
<li>
<p>
build improvements.
</p>
</li>
<li>
<p>
High level API to apply ops directly to buffers with arguments.
</p>
</li>
<li>
<p>
Final bits of translation infrastructure.
</p>
</li>
<li>
<p>
Invalidate regions when disconnecting input pads.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_operations_17">Operations</h3>
<div class="ulist"><ul>
<li>
<p>
New operation: global-matting
</p>
</li>
<li>
<p>
Allow transform core to do perspective transforms.
</p>
</li>
<li>
<p>
Added string based key/value pairs to operations.
</p>
</li>
<li>
<p>
Added arguments for dealing with scaled down preview rendering.
</p>
</li>
<li>
<p>
Added human interaction ranges and non-linear mapping to properties.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_buffer_13">Buffer</h3>
<div class="ulist"><ul>
<li>
<p>
Removed broken lanczos sampler.
</p>
</li>
<li>
<p>
Add gegl_buffer_set_color and gegl_buffer_set_pattern
</p>
</li>
<li>
<p>
Added ability to drop cached tiles.
</p>
</li>
<li>
<p>
Added API for handling abyss policy (not implemented yet)
</p>
</li>
<li>
<p>
Avoid iterating global tile cache when flushing/destroying buffers
  that have no tiles in the cache.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_12">Contributors</h3>
<div class="paragraph"><p>Øyvind Kolås, Martin Nordholts, Hans Petter Jansson, Mikael Magnusson, Victor
Oliveira, Nils Philippsen, Kevin Cozens, Michael Muré, Jan Rüegg, Michael
Natterer, Michael Henning, Massimo Valentini, Alexandre Prokoudine and
Jon Nordby.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_1_8_2011_11_18">GEGL-0.1.8 2011-11-18</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
New operations: spread, vignette, map-relative, noise-reduction, plasma,
fractal-trace, exr-save, lens-correct, emboss, cubism, ripple,
color-to-alpha, color-rotate, red-eye-removal, convolution-matrix,
deinterlace, polar-coordinates, lens-distortion, pixelise.
</p>
</li>
<li>
<p>
Split GeglView GTK Widget into separate utility library
</p>
</li>
<li>
<p>
build/test improvements.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_buffer_14">Buffer</h3>
<div class="ulist"><ul>
<li>
<p>
Added lohalo resampler
</p>
</li>
<li>
<p>
API and infrastructure for doing non-affine resamplings.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_13">Contributors</h3>
<div class="paragraph"><p>Øyvind Kolås, Michael Natterer, Barak Itkin, Nils Philippsen, Mukund
Sivaraman, Jon Nordby, Emilio Pozuelo Monfort, Étienne Bersac, Martin
Nordholts, Victor Oliveira, Michael Muré, Michael Schumacher, Adam
Turcotte, Nicolas Robidoux, Robert Sasu, Massimo Valentini, Joao S. O.
Bueno, Hans Lo, Zbigniew Chyla, David Evans and Javier Jardón.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_1_6_2011_02_13">GEGL-0.1.6 2011-02-13</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
New operations: max-rgb, pixelise, motion blur.
</p>
</li>
<li>
<p>
Fixed a bug in matting-levin that made GEGL halt due to errors
  detected by babl sanity code, this made 0.1.4 be unusable if you had
  all dependendencies when building.
</p>
</li>
<li>
<p>
build/test improvements.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_buffer_15">Buffer</h3>
<div class="paragraph"><p>Added API to use external tile backends, allowing to plug-in alien
tilebackends, for GIMP/Krita/OSM or similar.</p></div>
</div>
<div class="sect2">
<h3 id="_contributors_14">Contributors</h3>
<div class="paragraph"><p>Tobias Ellinghaus, Øyvind Kolås, Barak Itkin and Martin Nordholts</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_1_4_2011_01_20">GEGL-0.1.4 2011-01-20</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_operations_18">Operations</h3>
<div class="ulist"><ul>
<li>
<p>
save (chooses delegate save op automatically)
</p>
</li>
<li>
<p>
rgbe load/save
</p>
</li>
<li>
<p>
jpeg200 load/save
</p>
</li>
<li>
<p>
ppm load/save
</p>
</li>
<li>
<p>
map-absolute (GIMP cage tool gsoc helper op)
</p>
</li>
<li>
<p>
whirl and pinch
</p>
</li>
<li>
<p>
mirrors
</p>
</li>
<li>
<p>
grid render
</p>
</li>
<li>
<p>
fixed imagemagick fallback load op
</p>
</li>
<li>
<p>
fixed pipe based dcraw wrapper
</p>
</li>
<li>
<p>
GSoC 2010 ops: exp-combine, reinhard05, fattal02, mantiuk06, matting-levin
</p>
</li>
<li>
<p>
Various source and build improvements.
</p>
</li>
<li>
<p>
improvements towards threaded rendering
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_buffer_16">Buffer</h3>
<div class="ulist"><ul>
<li>
<p>
refactored away some constant overhead made GeglBufferIterator API
  public
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_15">Contributors</h3>
<div class="paragraph"><p>Michael Natterer, Øyvind Kolås, Vincent Untz, Kaja Liiv, Nils
Philippsen, Étienne Bersac, Martin Nordholts, Debarshi Ray, Danny
Robson, Stuart Axon, Kao, Mukund Sivaraman, Ruben Vermeersch, Barak
Itkin, Michael Muré, Mikael Magnusson, Patrick Horgan and Andy Gill.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_1_2_2010_02_07">GEGL-0.1.2 2010-02-07</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
GeglLookup, configurable floating point lookup tables for lazy computation.
</p>
</li>
<li>
<p>
Use GFileIOStream in GeglTileBackendFile.
</p>
</li>
<li>
<p>
Optimizations: in-place processing for point filters/composers,
  SIMD version of gegl:opacity, avoid making unneccesary sub-buffers,
  removed some manual instrumentation from critical paths, improved
  speed of samplers.
</p>
</li>
<li>
<p>
Added xml composition/reference image based regression tests.
</p>
</li>
<li>
<p>
Added performance tracking framework.
</p>
</li>
<li>
<p>
Syntactic sugar using varargs for constructing gegl graphs from C.
</p>
</li>
<li>
<p>
Build fixes on cygwin,
</p>
</li>
<li>
<p>
Gegl# fixes.
</p>
</li>
<li>
<p>
Initial, but unstable code towards multithreading.
</p>
</li>
<li>
<p>
Improvements to lua op in workshop.
</p>
</li>
<li>
<p>
Added new resamplers upsize, upsharp, upsmooth, downsize, downsharp and
  downsmooth.
</p>
</li>
<li>
<p>
Removed gegl:tonemap and gegl:normal ops.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_contributors_16">Contributors</h3>
<div class="literalblock">
<div class="content">
<pre><code>Martin Nordholts, Sven Neumann, Nils Philippsen, Adam Turcotte,
Danny Robson, Michael Schumacher, Ruben Vermeersch, Øyvind Kolås,
Javier Jardón, Yaakov Selkowitz and Michael Natterer, Kaja Liiv
and Eric Daoust.</code></pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_1_0_2009_07_01">GEGL-0.1.0 2009-07-01</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Renamed gegl:load-buffer to gegl:buffer-source and gegl:save-buffer
  to gegl:buffer-sink (but the old names still work)
</p>
</li>
<li>
<p>
Represent colors using doubles instead of floats (this change is
  independent from internal processing)
</p>
</li>
<li>
<p>
Removed the GTK+ UI parts of the gegl binary and turned gegl into a
  pure command line tool (which can still visualize stuff with help
  help the SDL based display operation)
</p>
</li>
<li>
<p>
Consider G_MININT/2, y=G_MININT/2, width=G_MAXINT, height=G_MAXINT
   as the only valid region in which processing may occur. Processing
   outside of this region is undefined behaviour.
</p>
</li>
<li>
<p>
Added support for storing allocation stack traces for GeglBuffers
  so that debugging buffer leaks becomes much easier
</p>
</li>
<li>
<p>
Made small changes and cleanups of the public API, e.g.
</p>
</li>
<li>
<p>
Removed gegl_node_adapt_child()
</p>
</li>
<li>
<p>
Made GeglConfig an explicit object
</p>
</li>
<li>
<p>
Removed most of the ifdeffed stuff to mask away internal
     structures
</p>
</li>
<li>
<p>
Added gegl_rectangle_infinite_plane() and
     gegl_rectangle_is_infinite_plane()
</p>
</li>
<li>
<p>
Added new sampler GeglSamplerSharp
</p>
</li>
<li>
<p>
Added format property to gegl:buffer-sink
</p>
</li>
<li>
<p>
Cleaned up and made gegl:introspect work again
</p>
</li>
<li>
<p>
Add a bunch of test cases using the automake test system (make check)
  and also port buffer tests to automake
</p>
</li>
<li>
<p>
General cleanups, bug fixes, increased robustness and improved
  documentation
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_contributors_17">Contributors</h3>
<div class="paragraph"><p>Øyvind Kolås, Sven Neumann, Étienne Bersac, Hubert Figuiere, Martin
Nordholts, Nicolas Robidoux, Michael Natterer, Ruben Vermeersch,
Kevin Cozens, Manish Singh, Gary V. Vaughan, James Legg,
Henrik Åkesson, Fryderyk Dziarmagowski, Ozan Caglayan and
Tobias Mueller.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_22_2008_12_31">GEGL-0.0.22 2008-12-31</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_gegloperation">GeglOperation</h3>
<div class="ulist"><ul>
<li>
<p>
operation names are now prefixed, the ops in GEGL use <em>gegl:</em> as prefix.
</p>
</li>
<li>
<p>
gegl:opacity - combine value and aux mask input when both are available.
</p>
</li>
<li>
<p>
gegl:src-in - deal correctly with extens.
</p>
</li>
<li>
<p>
gegl:path - new op covering the stroke/fill needs of SVG.
</p>
</li>
<li>
<p>
deprecated gegl:shift, the affine family of operations now
     uses the same fast code paths for integer translations.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_geglbuffer_2">GeglBuffer</h3>
<div class="ulist"><ul>
<li>
<p>
Profiling motivated speed ups in data reading/writing.
</p>
</li>
<li>
<p>
Remove left-over swapfiles from dead processes at startup.
 • GeglNode
</p>
</li>
<li>
<p>
made gegl_node_add_child and gegl_node_remove_child public API. (#507298)
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_geglpath">GeglPath</h3>
<div class="paragraph"><p>Vector path representation infrastructure, supporting poly lines and
beziers by default, the infrastructure allows extensions from
applications with other curve types (smooth curves, spiro curves and
others.).</p></div>
<div class="paragraph"><p>Contributors:</p></div>
<div class="paragraph"><p>Hubert Figuiere, Sven Neumann, Øyvind Kolås, Michael Natterer,
Kevin Cozens, Sam Hocevar, Martin Nordholts, Manish Singh,
Étienne Bersac and Michael Schumacher.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_20_2008_10_05">GEGL-0.0.20 2008-10-05</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Build and code clean ups and fixes.
</p>
</li>
<li>
<p>
RAW loader using libopenraw.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_geglbuffer_3">GeglBuffer</h3>
<div class="ulist"><ul>
<li>
<p>
Linear buffer support, amongst other things enabling GeglBuffer API access
  to external linear buffers in memory.
</p>
</li>
<li>
<p>
Reworked samplers using a shared caching neighbourhood infrastructure.
</p>
</li>
<li>
<p>
YAFR - a new resampler contributed by Nicolas Robidoux.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_geglvector">GeglVector</h3>
<div class="paragraph"><p>Added SVG parsing capability (no serialisation yet).</p></div>
</div>
<div class="sect2">
<h3 id="_gegloperations">GeglOperations</h3>
<div class="ulist"><ul>
<li>
<p>
Marked user visible strings for translation.
</p>
</li>
<li>
<p>
Added a fill operation that renders a path.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_18">Contributors</h3>
<div class="paragraph"><p>Martin Nordholts, Øyvind Kolås, Sam Hocevar, Manish Singh, Hubert
Figuiere, Sven Neumann and yahvuu at gmail.com.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_18_2008_06_14">GEGL-0.0.18 2008-06-14</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Configuration both from commandline arguments and at runtime.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_geglbuffer_4">GeglBuffer</h3>
<div class="ulist"><ul>
<li>
<p>
New raw tiled raster file format, used both as swap and stored buffers.
</p>
</li>
<li>
<p>
Sharing between processes through synced swap.
</p>
</li>
<li>
<p>
Babl powered scan iteration infrastructure for efficient access.
</p>
</li>
<li>
<p>
Cubic and lanczos samplers re-enabled.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_operations_19">Operations</h3>
<div class="ulist"><ul>
<li>
<p>
Use scan iterator for point-filter, point-composer and point-render base
  classes internally for minimal amount of copies.
</p>
</li>
<li>
<p>
Optimized variants of some point and compositing operations reimplemented
  using a new data type /g4float/ that allows writing CPU agnostic vectorized
  code for GCC.
</p>
</li>
<li>
<p>
New temporal filter base class, for operations operating on color values from
  neighbouring frames in a video stream.
</p>
</li>
<li>
<p>
Autogenerated operation reference installed for use with devhelp.
</p>
</li>
<li>
<p>
New operations: write-buffer, v4l, color-temperature.
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_19">Contributors</h3>
<div class="paragraph"><p>Øyvind Kolås, Kevin Cozens, Sven Neumann, Manish Singh, Martin Nordholts,
Étienne Bersac, Hans Petter Jansson, Jan Heller, <a href="mailto:dmacks@netspace.org">dmacks@netspace.org</a>,
Sven Anders, Hubert Figuiere and Geert Jordaens.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_16_2008_02_29">GEGL-0.0.16 2008-02-29</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Install headers for development of external operation plug-ins.
</p>
</li>
<li>
<p>
Added rowstride argument to gegl_buffer_set ()
</p>
</li>
<li>
<p>
Made it possible for sink operations to do chunkwise processing
   through GeglProcessor.
   when processed using a GeglProcessor.
</p>
</li>
<li>
<p>
constification of GeglRectangles and babl formats.
</p>
</li>
<li>
<p>
Build and dist fixes, plugged annoying buffer leaks, GEGL now
   also works on OSX
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_contributors_20">Contributors</h3>
<div class="paragraph"><p>Øyvind Kolås, Étienne Bersac, Kevin Cozens, Sven Neumann,
Manish Singh, Michael Natterer, Hans Brauer, Deji Akingunola,
Bradley Broom and Tor Lillqvist.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_14_2007_12_20">GEGL-0.0.14 2007-12-20</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Relicensed under LGPLv3+.
</p>
</li>
<li>
<p>
Per node caches (faster recomputation when properties of nodes in
   composition change)
</p>
</li>
<li>
<p>
Sampler framework for interpolation.
</p>
</li>
<li>
<p>
Modified API for retrieving scaled buffers gegl_node_blit / gegl_buffer_get.
</p>
</li>
<li>
<p>
Renamed XML serialization and parsing API to be descendants of GeglNode.
</p>
</li>
<li>
<p>
Progress monitoring for GeglProcessor
</p>
</li>
<li>
<p>
New operation base class GeglOperationAreaFilter
</p>
</li>
<li>
<p>
API reference installed and browsable using devhelp.
</p>
</li>
<li>
<p>
New operations: ff-load, mono-mixer, contrast-curve, save-pixbuf,
   compositing ops from SVG-1.2 draft, value-invert, convert-format,
   bilateral-filter, snn-mean
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_contributors_21">Contributors</h3>
<div class="paragraph"><p>Étienne Bersac, Kevin Cozens, Manish Singh, Mark Probst, Martin Nordholts,
Michael Schumacher, Mukund Sivaraman, Shlomi Fish, Tor Lillqvist and
Øyvind Kolås</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_12_2007_02_18">GEGL-0.0.12 2007-02-18</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Swapping out of image pyramid.
</p>
</li>
<li>
<p>
Speedups to text rendering.
</p>
</li>
<li>
<p>
GEGL compiles on win32
</p>
</li>
<li>
<p>
GEGL_SWAP now specifies swapdir location.
</p>
</li>
<li>
<p>
Small refactorings of public API.
</p>
</li>
<li>
<p>
Changed the XML parser/serializer to not use attributes for node properties.
</p>
</li>
<li>
<p>
Improvements to documentation.
</p>
</li>
<li>
<p>
Automagic build environment for operations simplified.
</p>
</li>
<li>
<p>
Internal API for saving/loading GeglBuffers to/from disk.
</p>
</li>
<li>
<p>
Ruby, C# and Python bindings added to version control system
   (not included in distributed tarball)
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_contributors_22">Contributors</h3>
<div class="paragraph"><p>Kevin Cozens, Michael Schumacher. Sven Neumann and Øyvind Kolås,</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_6_2007_01_07">GEGL-0.0.6 2007-01-07</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
hit detection code
</p>
</li>
<li>
<p>
handling of relative/absolute path names for XML.
</p>
</li>
<li>
<p>
merged GeglNode and GeglGraph classes.
</p>
</li>
<li>
<p>
build fixes for Win32 and FreeBSD
</p>
</li>
<li>
<p>
temporarily disabled custom cairo in test application.
</p>
</li>
<li>
<p>
png and EXR improvements.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_contributors_23">Contributors</h3>
<div class="paragraph"><p>Dominik Ernst, Kevin Cozens, Øyvind Kolås and Michael Schumacher.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_4_2006_12_29">GEGL-0.0.4 2006-12-29</h2>
<div class="sectionbody">
<div class="paragraph"><p>This was the first public release of GEGL.</p></div>
<div class="ulist"><ul>
<li>
<p>
8bit, 16bit integer and 32bit floating point, RGB, CIE Lab, YCbCr
  and naive CMYK output.
</p>
</li>
<li>
<p>
Extendable through plug-ins.
</p>
</li>
<li>
<p>
XML, C and Python interfaces.
</p>
</li>
<li>
<p>
Memory efficient evaluation of subregions.
</p>
</li>
<li>
<p>
Tiled, sparse, pyramidial and larger than RAM buffers.
</p>
</li>
</ul></div>
<div class="sect2">
<h3 id="_operations_20">Operations</h3>
<div class="ulist"><ul>
<li>
<p>
PNG, JPEG, SVG, EXR, RAW and other image sources.
</p>
</li>
<li>
<p>
Arithmetic operations, porter duff compositing operations, SVG blend
  modes, other blend modes, apply mask.
</p>
</li>
<li>
<p>
Gaussian blur.
</p>
</li>
<li>
<p>
Basic color correction tools.
</p>
</li>
<li>
<p>
Most processing done with High Dynamic Range routines.
</p>
</li>
<li>
<p>
Text layouting using pango
</p>
</li>
</ul></div>
</div>
<div class="sect2">
<h3 id="_contributors_24">Contributors</h3>
<div class="paragraph"><p>Dominik Ernst, Kevin Cozens, Manish Singh, Martin Nordholts, Michael
Natterer.  Philip Lafleur, Sven Neumann and Øyvind Kolås.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_gegl_0_0_0">GEGL-0.0.0</h2>
<div class="sectionbody">
<div class="paragraph"><p>Contributors:</p></div>
<div class="paragraph"><p>Calvin Williamson, Caroline Dahloff Daniel Rogers, Garry R. Osgood, Jay
Cox and Sven Neumann</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
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 2018-03-23 18:57:18 CET
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