54d3beab9c
...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.
93 lines
3.7 KiB
C
93 lines
3.7 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimplevelsconfig.h
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* Copyright (C) 2007 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_LEVELS_CONFIG_H__
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#define __GIMP_LEVELS_CONFIG_H__
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#include "core/gimpsettings.h"
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#define GIMP_TYPE_LEVELS_CONFIG (gimp_levels_config_get_type ())
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#define GIMP_LEVELS_CONFIG(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_LEVELS_CONFIG, GimpLevelsConfig))
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#define GIMP_LEVELS_CONFIG_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_LEVELS_CONFIG, GimpLevelsConfigClass))
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#define GIMP_IS_LEVELS_CONFIG(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_LEVELS_CONFIG))
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#define GIMP_IS_LEVELS_CONFIG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_LEVELS_CONFIG))
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#define GIMP_LEVELS_CONFIG_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_LEVELS_CONFIG, GimpLevelsConfigClass))
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typedef struct _GimpLevelsConfigClass GimpLevelsConfigClass;
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struct _GimpLevelsConfig
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{
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GimpSettings parent_instance;
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gboolean linear;
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GimpHistogramChannel channel;
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gdouble low_input[5];
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gdouble high_input[5];
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gboolean clamp_input;
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gdouble gamma[5];
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gdouble low_output[5];
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gdouble high_output[5];
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gboolean clamp_output;
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};
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struct _GimpLevelsConfigClass
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{
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GimpSettingsClass parent_class;
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};
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GType gimp_levels_config_get_type (void) G_GNUC_CONST;
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void gimp_levels_config_reset_channel (GimpLevelsConfig *config);
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void gimp_levels_config_stretch (GimpLevelsConfig *config,
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GimpHistogram *histogram,
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gboolean is_color);
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void gimp_levels_config_stretch_channel (GimpLevelsConfig *config,
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GimpHistogram *histogram,
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GimpHistogramChannel channel);
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void gimp_levels_config_adjust_by_colors (GimpLevelsConfig *config,
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GimpHistogramChannel channel,
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const GimpRGB *black,
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const GimpRGB *gray,
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const GimpRGB *white);
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GimpCurvesConfig *
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gimp_levels_config_to_curves_config (GimpLevelsConfig *config);
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gboolean gimp_levels_config_load_cruft (GimpLevelsConfig *config,
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GInputStream *input,
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GError **error);
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gboolean gimp_levels_config_save_cruft (GimpLevelsConfig *config,
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GOutputStream *output,
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GError **error);
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#endif /* __GIMP_LEVELS_CONFIG_H__ */
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