In gimp_gegl_buffer_set_extent(), clear the full now-out-of-bounds
region of the buffer, instead of only full out-of-bounds tiles;
however, we still make sure to clear full tiles, instead of partial
tiles, as much as possible. This prevents (parts of) the old
content of the buffer from showing when it's enlarged again. This
is especially relevant for the image projection, once we add
support for a dynamically-expanding canvas in the following
commits, since the projection of a reexpanded buffer can be
temporarily rendered to the display before it's fully
reconstructed, exposing parts of the old content.
.... as a drop-in replacement for gegl_buffer_set_extent(), which,
in addition to setting the buffer's extent, clears any now-out-of-
bounds tiles, to free memory.
In gimp_gegl_apply_cached_operation(), copy the cached results to
the destination buffer *before* reconnecting the operation node, as
this may cause the cache to be cleared (see commit
gegl@4347255cd9d5031e6757c70fdde5c63539d5f508).
which means that it's now included normally via gimpbase.h
and not any longer via gimpbasetypes.h which we only did out
of lazyness. A *lot* of files in libgimp* and app/ now need to
... as a drop-in replacement for gegl_buffer_dup(), which COWs all
tiles of the source buffer, including ones that aren't fully
included within buffer's extent.
In gimp_gegl_buffer_copy(), assume that the area outside the abyss
is empty, and so, when the abyss policy is NONE, allow data otuside
the source/destination abyss to be copied, by temporarily modifying
the abyss. This allows tiles that aren't fully contained within
the abyss to be COWed, unlike gegl_buffer_copy(), which has to be
more general.
In gimp_gegl_apply_[cached_]operation(), use a longer iteration
interval (resulying in bigger chunks) when processing the op, than
the iteration interval used for rendering the projection. In
particular, use an even longer interval when processing area
filters, since their may be particularly sensitive to the chunk
size (see, for example, issue #3711). Likewise, use the asme
longer interval when not showing progress indication, since we
don't need to stay responsive in this case (but don't avoid
chunking altogether, to reduce the space required for intermediate
results).
This allows us to process an op faster when committing a filter,
while still remaining responsive (if overall slower) during
preview.
... which determines if a node is an area filter operation. If the
node is a meta op, we conservatively return TRUE, as it may involve
an area-filter op.
Add a "gboolean edge_lock" parameter to GimpChannel::feather() and a
"Selected areas continue outside the image" toggle to the "Feather
Selection" dialog, just like they exist for shrink selection and
border selection. At the end, convert the boolean to the right abyss
policy for gegl:gaussian-blur.
In gimp_gegl_apply_[cached_]operation(), add support for output
buffers whose extent's top-left corner is not (0, 0). This is
needed by the previous commit.
In gimp_layer_mode_get_format(), disregard the requested composite
space when selecting the format, if the input layer mode is alpha-
only, and the requested composite mode is not UNION, since, in this
case, the layer mode doesn't combine the layer/backdrop colors, and
rather only modifies the alpha of one of them. This allows us to
use the preferred format, avoiding gamma conversion.
This particularly improves the performance of the Eraser tool in
perceptual images.
In the vairous gimp_gegl_create_foo_node() functions, set the
parent node's underlying operation node, so that
gimp_gegl_apply_cached_operation() avoids duplicating the source
buffer when applying these nodes (all underlying operations are
currently point ops.)
In gimp_gegl_apply_cached_operation(), use the underlying
operation, as returned from
gimp_gegl_node_get_underlying_operation(), for testing whether the
operation is a point operation, for the purpose of avoiding
duplicating the input buffer. Likewise, avoid duplicating the
buffer when the underlying operation is a source operation.
... which allow setting/getting the "underlying operation" node of
a graph node. For example, GimpDrawableFilter constructs a complex
graph around a given operation node, which would be the underlying
operation of the graph. This allows querying the properties of the
underlying operation, given only the graph.
In recursive cases, gimp_gegl_node_get_underlying_operation()
returns the most-nested underlying operation; when no underlying
operation has been set, gimp_gegl_node_get_underlying_operation()
returns the input node.
In gimp_drawable_merge_filter(), disable the filter applicator's
cache and output-format conversion nodes before processing the
uncached region of the filter, so that the result is written
directly to the drawable's buffer.
Improve gimp_gegl_mask_combine_ellipse_rect() -- the funciton
responsible for rendering ellipse/rounded-rectangle selections.
Most notably, this commit significantly improves the function's
performance, by identifying whole tiles, whole rows, or parts of a
row, that are fully inside, or fully outside, the ellipse, and
filling them in bulk, instead of calculating the anti-aliasing
value at each pixel, which is now only done along the
circumference.
This commit also improves anti-aliasing, by more accurately
approximating the distance from a pixel to the ellipse, and by
normalizing the distance according to the pixel's cross-section
length in the direction of the said point. In particular, we
guarantee that pixels that are fully inside/outside the ellipse
have a value of 1/0, respectively, facilitating the aforementioned
optimization.
Additionally, this commit fixes various edge cases where several
primitives coincide at a single pixel (in the rounded-rectangle
case), adds support for CHANNEL_OP_INTERSECT, and parallelizes
processing.
In gimp_gegl_create_flatten_node(), explicitly set the output
format of the background gegl:color node according to the composite
space, so that no conversion is required during compositing.
In gimp_gegl_apply_cached_operation(), when the source and
destination buffers are the same, avoid duplicating the source
buffer when the applied operation is a point operation, since
applying it in chunks from/to the same buffer is not a problem in
this case.
... which takes a GeglNode, and determines if the associated
operation is a point operation.
Use in GimpFilterTool, instead of performing the same check
manually.
Remove gimp_gegl_replace(), which is not used anywhere since the
last commit. It's redundant with the rest of our compositing code,
in particular, gimp:replace and gimp:mask-components.
Plug-ins are not prepared to handle high-precision brushes/
patterns, even when they're otherwise aware of high-precision
drawables, so make sure to always use compat formats when
communicating brush/pattern data to plug-ins.
Allowing plug-ins to handle high-precision brush/pattern data would
require some additional API.
In gimp_tile_handler_validate_buffer_copy(), temporarily remove the
source buffer's validate handler, is exists, so that the subsequent
gegl_buffer_copy() can use fast tile copying, using the TILE_COPY
command. GEGL currently only uses TILE_COPY when the source buffer
doesn't have any user-provided tile handlers.
In gimp_gegl_apply_cached_operation(), replace the use of
GeglProcessor with GimpChunkIterator, so that we use the same
chunking logic as for rendering projections. This has the
advantage of better chunk alignment to the tile grid and dynamic
chunk sizing, which improve performance.
Use chunking even when there's no progress indication, since it
generally results in better cache locality.
In GimpTileHandlerValidate, when rendering a whole tile in respone
to a TILE_GET command, use gegl_tile_handler_get_tile() to get the
tile without preserving its data, so that we avoid unnecessarily
fetching the tile from storage, or copying its data during
uncloning.
In gimp_gegl_apply_cached_operation(), intersect the cached rects
with the dest rect, so that we don't unnecessarily (if not
erroneously) copy cached regions outside the dest rect to the dest
buffer. This can happen when the op's applicator crop-rect changes
dynamically.
We're going to use GimpApplicator's output crop for more than just
split previews. Rename gimp_applicator_set_preview() to
gimp_applicator_set_crop(), and add gimp_applicator_get_crop(),
which returns the output crop rectangle, or NULL if cropping is
disabled.
Remove the use_split_preview and use_result_cache parameters of
gimp_applicator_new(), and allow enabling/disabling the cache
(through gimp_applicator_set_cache()) and the preview crop (through
gimp_applicator_set_preview()) after construction.
Move the preview crop node after the result cache, and remove the
separate preview cache node. This eliminates an extra cache
buffer, reducing the space consumed by filters, and speeds up split
preview, since the cached result now includes the output
compositing.
In GimpApplicator, add gimp_applicator_set_output_format(), which
can be used to explicitly set the format of the result. In
particular, this allows controlling the output cache format, which
can speed up the merging of cached filters.
Ell