I know this looks absolutely horrible, please spare me comments about
that. This commit has the purpose to let everybody experiment with the
new modes, and suggest improvements of the GimpLayerModeBox widget; we
need *some* way of controlling the new layer mode madness.
These variations on darken only and lighten only have the advantage over the
componentvise versions that they always use the full triplet of either original
or new layer - meaning no new colors/hues will be introduced. This is similar
to how these modes operated/operates in picture publisher and photo-paint.
- set the filter_tool->drawable before showing the tool gui.
- set the sensitivity functions for channel combobox of threshold,
levels and curves tools dialogs only once during dialog creations.
- use the filter_tool->drawable inside the sensitivity functions
C++ won't allow us to use GimpLayerMode in the API where we used to
have GimpLayerModeEffects.
Move GimpLayerModeEffects to libgimpbase/gimpcompatenums.h so it's
not in the API any longer, and instead typedef and define stuff in
libgimp/gimptypes.h, and adapt the compat enum registering code
accordingly.
The porting from 8bit per component scaled some 8bit fractions up to huge
floating point numbers, this works for most values but causes trouble for near
transparent pixel values. This commit copies the inner blend loop from the new
divide layer mode, but keeps the old compositing logic.
... is fully transparent, instead of just src.
The blend func results only affect the intersection of dest and src.
Run time is currently dominated by the compositing step for most modes,
so the difference in performance is pretty negligible, but it does make
a difference for the more expensive modes, like the HSV ones.
The print size displayed in image property and title format should use
gimp_unit_get_scaled_digits() instead of gimp_unit_get_digits() and
adding 1, which is quite random or magic number-y.
For operations needing to override default behavior sub-classes should still be
used.
This commit also enables pinligh, vividlight and linearlight blend mode modes
We can't just switch to a GimpOperationTool by using the normal
gimp_context_set_tool() or gimp_context_tool_changed() because it
needs additional initialization like setting an operation at all.
In gimp_gegl_procedure_execute_async(), g_object_set_data() the used
procedure on the newly created tool.
In gimp_display_shell_initialize_tool(), when we re-create the active
tool because of a drawable change, check for the procedure and invoke
it again, instead of simply creating an empty operation tool by
calling gimp_context_tool_changed().
Optionally convert all imported (not XCFs) images to 32 bit linear
floating point, and optionally add a little noise in order to
distribute the colors minimally. The new options are on a new "Image
Import & Export" prefs page that needs a new icon. Original dithering
patch by pippin.
Since CIE Lab is one of the supported color spaces for doing the blending -
this enum is not only about transfer functions/curves or gamma. This finishes
already started cleanups.
... in status bar.
Follow-up of commits f836892 and d1c3c3d. With high resolutions, the
distance displayed in the status bar when shift-clicking in a paint tool
may lack digit precision and show the same value (in non-pixel unit) for
several consecutive pixels. Compute a more accurate precision than what
gimp_unit_get_digits() can provide in such cases.
When working with high resolution, you may have cases where measured
length won't be displayed with enough digits; i.e. several pixels length
would show up as 0. For instance at 4000 PPI, up to 7 pixels show up as
0 mm, then at 0.1 mm from the 8th pixel (actually reaching over 0.05 mm,
approximating as 0.1), then 0.2 at 24 pixels (actually: 0.152), and so
on. At such a resolution, 3 digits are needed for 'mm' instead of the
1 digit returned by gimp_unit_get_digits() so that we display reliable
lengths.
Therefore we need to compute ideal digit precision. Configured digits
for a given unit will now be used as a minimum value, but actually used
digits may be higher.
Compute the ideal decimal precision for cursor position and length
status so that you get the best precision on physical units depending
on the current resolution, yet avoiding over-precision (which can be
misleading). The unit's "digits" value is now used as a minimum
precision only.
It is used both for blending and compositing, the repeated use of the word
BLEND in code made the logic involving both blending and compositing hard to
read.
Note that in some cases the alloca may be unnecessary, but this keeps
the code clean, and we have to be able to *potentially* do the alloca
anyway, so what the hell.
Implement a common utility function gimp_blend_composite that uses utility
functions for implementing layer modes, with separate (possibly SIMD) optimized
loops for blending and compositing, with configured linear TRC, perceptual
gamma TRC or even using CIE Lab as the space.
from gimp_applicator_new() and gimp_gegl_mode_node_set_mode().
Compositing doesn't depend on the layer format any longer, only on the
layer mode. Painting with "use applicator" unchecked is still broken
in some cases and needs more fixing.
like all other function typedefs and add GimpBlendFunc typedef which
will be needed soon. Also rename get_layer_mode_function() to
gimp_get_layer_mode_function().
...layer group cause a bug in the existing layer size
Change gimp_group_layer_get_size() to return FALSE if there are no
children (there is no content).
In gimp_group_layer_update_size(), skip children where get_size()
returns FALSE. Fixes bogus size calculation.
Alexandre Prokoudine