Opened 5 years ago
Closed 5 years ago
New point version.
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
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.
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
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.
gegl_buffer_copy gegl_buffer_clear and gegl_buffer_set color now only
emit a single changed signal on the buffer.
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.
color-to-alpha now contains improvements from experiment in workshop
which is gone.
Fixed crahses in median-blur.
Only rasterize inside the transformed polygon, saving cpu. The
optimizations mentioned for GeglBuffer giving boosts and improved
News ops in workshop:
color-overlay, enlarge, inpaint, domain-transform, recursive=transform.
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.
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.
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.
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
Fixed at revision 20007.
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