In GimpProjection, avoid erroneously invalidating the projectable's
preview when flushing the projection and there's nothing to be
flushed, if the chunk renderer is still running, and hence the
projection is not fully rendered yet.
In GimpProjection, when the projectable's size changes, while its
offset remains the same, simply update the projection buffer's
extent, instead of allocating a new buffer and copying the contents
over.
(cherry picked from commit 1577174739)
In GimpProjectable, replace gimp_projectable_get_size(), which only
returned a width and a height, with
gimp_projectable_get_bounding_box(), which returns a full
rectangle. This allows projectables to have an arbitrary bounding
box, not limited to a (0, 0) top-left corner.
Adapt GimpProjection, creating a buffer with corresponding extent
to the projectable's bounding box.
Adapt GimpImage and GimpGroupLayer.
(cherry picked from commit 8ff43942d6)
In GimpProjection, store the priority rect in image coordinates,
and only convert it to projectable coordinates when initializing
the chunk-iterator's priority rect. This allows us to preserve the
priority rect across projectable structure/bounds changes.
(cherry picked from commit 9d80ccc3e6)
... immediately after an image precision change
When flushing a projection, make sure it has a buffer, instead of
bailing if it doesn't. We rely on the image projection's "update"
signal to update the display after certain operations that free the
buffer, which would previously fail to happen, and cause subsequent
flushes to be ignored until the buffer is explicitly accessed.
This fixes commit b07f810273.
(cherry picked from commit 106df3b794)
In gimp_projection_finish_draw(), clear the chunk iterator's
priority rect before finishing rendering, since it's not needed at
this point, and this is slightly more efficient.
(cherry picked from commit 9833da3431)
In gimp_projection_chunk_render_start(), when the current
projection rendering is complete, but not finalized yet, and no new
rendering is started (since the current update region is empty),
make sure to invalidate the projectable's preview, since it
normally happens when rendering is finalized, which doesn't happen
in this case.
(cherry picked from commit 42845c9462)
In gimp_projection_chunk_render_start(), don't leak the current
update region when it's empty, but not NULL, and properly shut down
the idle source.
(cherry picked from commit 0e5de95760)
In GimpLineArt, use the "invalidate-preview" signal of the input
viewable, instead of its "painted" or "rendered" signals, for
asynchronously computing the line art. Subsequently, remove the
aforementioned signals from GimpDrawable and GimpProjection,
respectively. This simplifies the code, and reduces the number of
signals.
(cherry picked from commit ef9b1f6694)
The "update" signal on drawable or projection can actually be emitted
many times for a single painting event. Just add new signals ("painted"
on GimpDrawable and "rendered" on GimpProjection) which are emitted once
for a single update (from user point of view), at the end, after actual
rendering is done (i.e. after the various "update" signals).
Also better support the sample merge vs current drawable paths for
bucket fill.
(cherry picked from commit 047265333c)
In GimpProjection's chunk renderer, when the chunk height changes
in the middle of a row, we need to merge the remainder of the
current render area back into the renderer's update region, and
refetch the remainder of the row as the new render area, so that we
don't miss any unrendered area, or re-render already-rendered area,
due to the change in chunk height. However, we should previously
fail to verify that the fetched area is, in fact, the remainder of
the current row, which could cause us to render the wrong area,
missing parts of the update region.
Fix this, by breaking up some of the chunk-renderer fucntions into
smaller sub-functions, and using those in order to explicitly set
the new render area to the remainder of the current row when the
chunk height changes. This also avoids erroneously merging the
unflushed update region of the projection into the renderer's
update region.
(cherry picked from commit c9c2397b0d)
Add a boolean "direct" parameter to gimp_projection_flush_now(),
which specifies if the projection buffer should only be invalidated
(FALSE), or rendered directly (TRUE).
Pass TRUE when flushing the projection during painting, so that the
affected regions are rendered in a single step, instead of tile-by-
tile. We previously only invalidated the projection buffer, but
since we synchronously flush the display right after that, the
invalidated regions would still get rendered, albeit less
efficiently.
Likewise, pass TRUE when benchmarking the projection through the
debug action, and avoid flushing the display, to more accurately
measure the render time.
(cherry picked from commit dac9bfe334)
Use gimp_tile_handler_validate_validate(), added in the last
commit, in GimpProjection, in order to render the projection,
instead of separately invalidating the buffer, undoing the
invalidation, and then rendering the graph. This is more
efficient, and more idiomatic.
(cherry picked from commit d6f0ca5531)
Add begin_validate() and end_validate() virtual functions, and
corresponding free functions, to GimpTileHandlerValidate. These
functions are called before/after validation happens, and should
perform any necessary steps to prepare for validation. The default
implementation suspends validation on tile access, so that the
assigned buffer may be accessed without causing validation.
Implement the new functions in GimpTileHandlerProjectable, by
calling gimp_projectable_begin_render() and
gimp_projectable_end_render(), respectively, instead of calling
these functions in the ::validate() implementation (which, in turn,
allows us to use the default ::validate() implementation.)
In GimpProjection, use the new functions in place of
gimp_projectable_{begin,end}_render().
(cherry picked from commit 5a623fc54b)
In gimp_projection_finish_draw(), make sure we don't accidentally
re-start the chunk renderer idle source while running the remaining
iterations, in case the chunk height changes, and we need to reinit
the renderer state.
(cherry picked from commit 8a47b68194)
Don't needlessly flush projections whose buffer hasn't been
allocated yet. This can happen when opening an image, in which
case the image is flushed before its projection has a buffer.
(cherry picked from commit b07f810273)
... and G_TYPE_INSTANCE_GET_PRIVATE()
g_type_class_add_private() and G_TYPE_INSTANCE_GET_PRIVATE() were
deprecated in GLib 2.58. Instead, use
G_DEFINE_[ABSTRACT_]TYPE_WITH_PRIVATE(), and
G_ADD_PRIVATE[_DYNAMIC](), and the implictly-defined
foo_get_instance_private() functions, all of which are available in
the GLib versions we depend on.
This commit only covers types registered using one of the
G_DEFINE_FOO() macros (i.e., most types), but not types with a
custom registration function, of which we still have a few -- GLib
currently only provides a (non-deprecated) public API for adding a
private struct using the G_DEFINE_FOO() macros.
Note that this commit was 99% auto-generated (because I'm not
*that* crazy :), so if there are any style mismatches... we'll have
to live with them for now.
In GimpProjection, use an adaptive chunk size when rendering the
projection asynchronously, rather than using a fixed chunk size.
The chunk size is determined according to the number of pixels
processed during the last frame, and the time it took to process
them, aiming for some target frame-rate (currently, 15 FPS). In
other words, the chunks become bigger when processing is fast, and
smaller when processing is slow. We're currently aiming for
generally-square chunks, whose sides are powers of 2, within a
predefined range.
Note that the chunk size represents a trade off between throughput
and responsiveness: bigger chunks result in better throughput,
since each individual chunk incurs an overhead, in particular when
rendering area filters or multithreaded ops, while smaller chunks
result in better responsiveness, since the time each chunk
individual takes to render is smaller, allowing us to more
accurately meet the target frame rate. With this commit, we aim to
find a good compromise dynamically, rather than statically.
The use of adaptive chunk sizes can be disabled by defining the
environment variable GIMP_NO_ADAPTIVE_CHUNK_SIZE, in which case we
use a fixed chunk size, as before.
(cherry picked from commit a1706bbd29)
Add a boolean "chunk" parameter to
gimp_projection_chunk_render_iteration(), which determines whether
the work area should be sub-divided into chunks prior to rendering
(previously, the work area would always be sub-divided.) Only
pass TRUE when rendering the projection asynchronously, in the
render callback, and pass FALSE when rendering the projection
synchronously, in gimp_projection_finish_draw(), which is called
when flushing the projection through the GimpPickable interface.
Rendering the projection using as big chunks as possible improves
performance, while worsening responsiveness. Since responsiveness
doesn't matter when rendering synchronously, there's no reason to
render in chunks.
(cherry picked from commit 105ffc787d)
In GimpProjection, change gimp_projection_add_update_area() to take
coordinates in the projection's coordinate system, rather than the
image coordinate system, and move the offset adjustment to the
projectable invalidation handler.
Modify gimp_projection_projectable_structure_changed() to pass
projection-space coordinates to gimp_projection_add_update_area().
gimp_projection_get_buffer() and
gimp_projection_projectable_bounds_changed() already pass
projection-space coordinates to gimp_projection_add_update_area(),
which was wrong before, when the projection had a nontrivial
offset, but is correct now.
(cherry picked from commit 2d63bc6e0a)
In gimp_projection_projectable_bounds_changed(), bail early by
calling gimp_projection_projectable_structure_changed() instead, if
the new bounds don't intersect the old bounds.
(cherry picked from commit c6b8a4213c)
In gimp_projection_projectable_bounds_changed(), which is called by
GimpProjection in response to a GimpProjectable::bounds-changed
signal, invalidate all regions of the new projection that weren't
copied from the old projection, so that they get rendered upon
flushing, instead of remaining empty.
Additionally, fix preview invalidation -- in particular, don't
directly invalidate the projectable's preview, even if preview
invalidation is already queued and chunk rendering was finished by
the boundary change, and instead always queue a preview
invalidation.
(cherry picked from commit bb5e3fd926)
In GimpProjection, respond to the projectable's "bounds-changed"
signal, by reallocating the buffer, and copying the corresponding
region of the old buffer (using
gimp_tile_handler_validate_buffer_copy(), added a few commits back,
so that the relevant portion of the validate handler's dirty region
is also copied). Additionally, shift and clip all outstanding
update regions as necessary (actually, we avoid copying the buffer
when a shift is necessary, and simply reconstruct the projection;
see FIXME comment in the code.)
(cherry picked from commit fbeae36118)
... which should be used to properly remove a
GimpTileHandlerValidate from a buffer, instead of using
gegl_buffer_remove_handler() directly.
Use gimp_tile_handler_validate_unassign(), instead of
gegl_buffer_remove_handler(), in gimp_projection_free_buffer().
(cherry picked from commit 12530e21b2)
Implement GimpPickable::get_pixel_average(), added in the previous
commit, in GimpDrawable, GimpImage, and GimpProjection, using
gimp_gegl_average_color(), added in the commit before last. This
is significantly faster than the default implementation.
When adding a rectangle to a projection's update area, align the
rectangle to a coarse grid, to reduce the complexity of the overall
area. We currently align the rectangle to a 32x32 grid, which
seems to be a good tradeoff between the overhead of processing a
complex area, and the overhead of processing a large area.
... which control the priority of the projection's idle source.
The projection's priority is specified relatively to
GIMP_PRIORITY_PROJECTION_IDLE (i.e., a priority of 1 results in an
idle source with priority GIMP_PRIORITY_PROJECTION_IDLE + 1, etc.)
More than 2000 lines of code less in app/, instead of
if (instance->member)
{
g_object_unref/g_free/g_whatever (instance->member);
instance->member = NULL;
}
we now simply use
g_clear_object/pointer (&instance->member);
which isn't really for "picking", but it just fits too nicely into
GimpPickable to not put it there.
Also add utility function gimp_pickable_srgb_to_image_color() which
takes a "real" (sRGB) GimpRGB value, transforms it to the pickable's
colorspace and puts it into an "image color" GimpRGB.
...when a color profile is active
Add GimpPickable::pixel_to_srgb() which puts a picked raw image
pixel into a GimpRGB. Default to gimp_rgba_set_pixel() but implement
pixel_to_srgb() in GimpLayer, GimpProjection and GimpImage and
run the pixel through gimp_image_color_profile_pixel_to_srgb().
which currently all end in a call to gimp_color_managed_get_color_profile()
except for channels and masks. This is currently unused infrastructure but
will be used for things like layer previews, and return NULL if called
on a mask or channel, or if color management is disabled, or whatever.
Add virtual function validate() so subclasses can construct arbitrary
buffers on-the-fly. The default implementation blits from the
projection graph like before. Add boolean property "whole-tile" which
allows for switching between always validating entire tiles, and
validating the parts of the tile that are actually dirty.
