All babl formats now have a space equivalent to a color profile,
determining the format's primaries and TRCs. This commit makes GIMP
aware of this.
libgimp:
- enum GimpPrecision: rename GAMMA values to NON_LINEAR and keep GAMMA
as deprecated aliases, add PERCEPTUAL values so we now have LINEAR,
NON_LINEAR and PERCPTUAL for each encoding, matching the babl
encoding variants RGB, R'G'B' and R~G~B~.
- gimp_color_transform_can_gegl_copy() now returns TRUE if both
profiles can return a babl space, increasing the amount of fast babl
color conversions significantly.
- TODO: no solution yet for getting libgimp drawable proxy buffers in
the right format with space.
plug-ins:
- follow the GimpPrecision change.
- TODO: everything else unchanged and partly broken or sub-optimal,
like setting a new image's color profile too late.
app:
- add enum GimpTRCType { LINEAR, NON_LINEAR, PERCEPTUAL } as
replacement for all "linear" booleans.
- change gimp-babl functions to take babl spaces and GimpTRCType
parameters and support all sorts of new perceptual ~ formats.
- a lot of places changed in the early days of goat invasion didn't
take advantage of gimp-babl utility functions and constructed
formats manually. They all needed revisiting and many now use much
simpler code calling gimp-babl API.
- change gimp_babl_format_get_color_profile() to really extract a
newly allocated color profile from the format, and add
gimp_babl_get_builtin_color_profile() which does the same as
gimp_babl_format_get_color_profile() did before. Visited all callers
to decide whether they are looking for the format's actual profile,
or for one of the builtin profiles, simplifying code that only needs
builtin profiles.
- drawables have a new get_space_api(), get_linear() is now get_trc().
- images now have a "layer space" and an API to get it,
gimp_image_get_layer_format() returns formats in that space.
- an image's layer space is created from the image's color profile,
change gimpimage-color-profile to deal with that correctly
- change many babl_format() calls to babl_format_with_space() and take
the space from passed formats or drawables
- add function gimp_layer_fix_format_space() which replaces the
layer's buffer with one that has the image's layer format, but
doesn't change pixel values
- use gimp_layer_fix_format_space() to make sure layers loaded from
XCF and created by plug-ins have the right space when added to the
image, because it's impossible to always assign the right space upon
layer creation
- "assign color profile" and "discard color profile" now require use
of gimp_layer_fix_format_space() too because the profile is now
embedded in all formats via the space. Add
gimp_image_assign_color_profile() which does all that and call it
instead of a simple gimp_image_set_color_profile(), also from the
PDB set-color-profile functions, which are essentially "assign" and
"discard" calls.
- generally, make sure a new image's color profile is set before
adding layers to it, gimp_image_set_color_profile() is more than
before considered know-what-you-are-doing API.
- take special precaution in all places that call
gimp_drawable_convert_type(), we now must pass a new_profile from
all callers that convert layers within the same image (such as
image_convert_type, image_convert_precision), because the layer's
new space can't be determined from the image's layer format during
the call.
- change all "linear" properties to "trc", in all config objects like
for levels and curves, in the histogram, in the widgets. This results
in some GUI that now has three choices instead of two.
TODO: we might want to reduce that back to two later.
- keep "linear" boolean properties around as compat if needed for file
pasring, but always convert the parsed parsed boolean to
GimpTRCType.
- TODO: the image's "enable color management" switch is currently
broken, will fix that in another commit.
This is just some preparation for fixing issue #1805, but actually
"target" is a much better name so I went the full way and also changed
GUI labels and the color picker tool options config property
accordingly.
If anyone notices at all, how horrible is it to lose your saved pick
target...
In GimpCurvesTool, calculate the histogram of the target drawable
asynchronously, rather than synchronously, to avoid blocking the UI
while the histogram is calculated.
The four remaining "classic" color tools (Brightness-Contrast, Curves,
Levels and Threshold) are in fact just special UIs for otherwise
completely normal filter ops.
Add normal filter actions for them and invoke them like all
other filters, which makes them show up in the filter history
automatically.
The only small hack needed is to special case them in
gimp_gegl_procedure_execute_async() so the right tools are created
instead of the default GimpOperationTool. Also, blacklist the
automatically generated tools actions from action search and the
shortcut editor.
...and present linear RGB Histograms
This is step one: implement the feature at all (without new defaults
or proper GUI, cough).
Add boolean "linear" properties to GimpOperationPointFilter,
GimpCurvesConfig and GimpLevelsConfig.
In the filter, simply set the input/output formats to linear in
prepare().
In the curves and levels tools, add "Linear" toggles from hell,
like in the histogram dockable, and make sure things work right
wrt changing and resetting the property, switching from levels
to curves, and picking colors.
The result currently changes when switching a non-nop curves/levels
between perceptual and linear, because adjusting the parameters
between the spaces is not implemented yet.
Add "gboolean with_filters" to gimp_drawable_calculate_histogram(),
which is passed as FALSE in almost all places, except the histogram
dockable where we want to see both the drawable's unmodified histogram
*and* the histogram after filters are applied.
...and "export_dialog_title"
It's ridiculous to keep this code around for strings that are only
marginally different (and not better) than the strings we can generate
from other strings we have anyway.
and call it from GimpFilterTool's "notify" callback. Remove signal
connections from all subblasses and instead implement ::config_notify().
The config object belongs to GimpFilterTool, and only GimpFilterTool
should know when it's created and can be connected to.
Since commit bc4589968c, GimpFilterTool
assumes that color picking is only ever enabled through color picker
toggles, created using gimp_filter_tool_add_color_picker(). However,
the curves tool enables color picking using the color tool functions
directly. CRITICALS ensued.
Use the new gimp_filter_tool_enable_color_picking() function, added
in the previous commit, and handle picking through the filter tool
interface, instead of the color tool interface. This fixes the
issue.
and add them as return values to GimpFilterToool::get_operation(), so
the tools is configured entirely per-instance now.
This makes get_operations()'s signature more evil, but helps making
GimpOperationTool less conplicated and convoluted.
Try to sort all GIMP_ICON_* defines into FDO categories like in
https://specifications.freedesktop.org/icon-naming-spec/latest/ar01s04.html
Add defines for all icons we override, rename some icons to their FDO
standard names, and mark the ones we duplicate with a comment so we
don't forget to rename those to standard names in 3.0.
- 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
Change GimpHistogram to take a "gboolean linear" parameter and always
honor that parameter, so both kinds of histograms can now be created
for all drawables.
Add a horrible "Linear" toggle to the histogram dockable which always
defaults to the active layer's actual pixel format, but can be
switched at any time. This UI is ugly and needs to change.
On the PDB, default to gamma-corrected if the plug-in is unaware of
higher precision, and to the drawable's native pixel format otherwise.
Other places using histograms (e.g. levels, curves) are unchanged.
First of all, derive GimpFilterOptions from GimpColorOptions, not the
other way around, which was a sick way of magically showing the right
options for various tools. That approach has failed and needed
additional hacks to do the right thing. Simply have the right class
hierarchy and call the right tool options GUI constructors and done.
Remove gimp_histogram_options_gui(), we don't need histogram scale
controls in tool options when we already have them next to the
histograms in the tool dialogs.
Also remove gimp_histogram_options_connect_view() and use a simple
g_object_bind_property() instead.
Change things so the guide is preferred over any color picking
interaction of the parent GimpColorTool. Needs a minor change in the
GimpCurvesTool subclass too.
Add new string members to GimpImageMapTool and use them instead of the
resp. fields of GimpToolInfo. Change ::get_operation() to return the
operation name and a lot of strings for the UI, and create both the
GeglNode and the config object in GimpOperationTool. Lots of various
cleanups in GimpImageMapTool subclasses. This is an intermediate state
on the way of making the whole filter applying mechanism more generic
and less depending on subclasses.
The Curves tool is to be considered "enabled" as soon as it is selected,
not when it is initialized (usually at the first click on the image).
One of the main consequence of not being "enabled" was that the tool
cursor was wrong at selection.
gimp_suggest_modifiers(): change "shift_format" and "control_format"
parameters to "extend_selection_format" and "toggle_behavior_format",
which fixes the longstanding problem that the function did the right
thing only by accident.
tools: use gimp_get_extend_selection_mask() instead of GDK_SHIFT_MASK
which is not 100% semantically correct in all cases, but at least a
step in the right direction to make the tool modifiers easier to
improve.
...when opened by the "Edit these settings as Curves" button on the
Levels dialog
The code to configure the entire GUI correctly was not even called
when initially creating the curves dialog (the color bars probably
looked right just because of default values of their own).
Factor out gimp_curves_tool_update_channel() which properly updates
the GUI. Call it after the dialog has been created, and when the
active channel changes.
Don't hardcode "black" for the "Value" curve in GimpCurvesTool.
Instead, pass a NULL color to GimpCurveView, which is then interpreted
as the theme's text color (the curve's background is the theme's text
background color). We still hardcode pure red, green and blue for the
other curves.
- Add new enum GimpComponentType which contains u8, u16, u32 etc.
- Change GimpPrecision to be u8-linear, u8-gamma, u16-linear etc.
- Add all the needed formats to gimp-babl.c
- Bump the XCF version to 5 and make sure version 4 with the old
GimpPrecision enum values is loaded correctly
This change blows up the precision enums in "New Image" and
Image->Precision so we can test all this stuff. It is undecided what
format will be user-visible options in 2.10.
so we can make histograms of the gamma-corrected image data. Pass
TRUE all over the place so the histogram works perceptually. This
needs more thinking...
