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37ce6b9ac8
2001-07-08 Michael Natterer <mitch@gimp.org> * app/Makefile.am * app/drawable.[ch]: removed. * app/core/gimpdrawable.[ch]: added the functions here. Made an end to the myth that FG/BG and the undo system (!!!) are not really part of the core. * app/disp_callbacks.c * app/floating_sel.c * app/image_map.c * app/qmask.c * app/undo.c * app/core/gimpchannel.c * app/core/gimpdrawable-desaturate.c * app/core/gimpdrawable-equalize.c * app/core/gimpdrawable-invert.c * app/core/gimpdrawable-offset.c * app/core/gimpedit.c * app/core/gimpimage-duplicate.c * app/core/gimpimage-mask.c * app/core/gimpimage-new.c * app/core/gimpimage.[ch] * app/core/gimplayer.c * app/core/gimplayermask.c * app/gui/channels-commands.c * app/gui/gui.c * app/gui/layers-commands.c * app/tools/gimpairbrushtool.c * app/tools/gimpbezierselecttool.c * app/tools/gimpblendtool.c * app/tools/gimpbrightnesscontrasttool.c * app/tools/gimpbucketfilltool.c * app/tools/gimpclonetool.c * app/tools/gimpcolorbalancetool.c * app/tools/gimpconvolvetool.c * app/tools/gimpcurvestool.c * app/tools/gimphistogramtool.c * app/tools/gimphuesaturationtool.c * app/tools/gimpinktool.c * app/tools/gimpiscissorstool.c * app/tools/gimplevelstool.c * app/tools/gimppainttool.c * app/tools/gimpposterizetool.c * app/tools/gimpscaletool.c * app/tools/gimpthresholdtool.c * app/tools/gimptransformtool.c * app/tools/tool_manager.c * app/widgets/gimpchannellistitem.c * app/widgets/gimpchannellistview.c * app/widgets/gimpdrawablelistitem.c * app/widgets/gimplayerlistitem.c * app/widgets/gimplayerlistview.c * app/pdb/channel_cmds.c * app/pdb/color_cmds.c * app/pdb/drawable_cmds.c * app/pdb/edit_cmds.c * app/pdb/floating_sel_cmds.c * app/pdb/image_cmds.c * app/pdb/layer_cmds.c * app/pdb/parasite_cmds.c * app/pdb/selection_cmds.c * app/pdb/text_tool_cmds.c * app/pdb/tools_cmds.c * tools/pdbgen/pdb.pl * tools/pdbgen/pdb/color.pdb * tools/pdbgen/pdb/drawable.pdb: changed accordingly. Misc small fixes and cleanups.
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "core-types.h"
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#include "base/gimphistogram.h"
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#include "base/gimplut.h"
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#include "base/lut-funcs.h"
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#include "base/pixel-processor.h"
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#include "base/pixel-region.h"
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#include "gimpdrawable.h"
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#include "gimpdrawable-equalize.h"
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#include "gimpdrawable-histogram.h"
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#include "gimpimage.h"
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void
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gimp_drawable_equalize (GimpDrawable *drawable,
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gboolean mask_only)
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{
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PixelRegion srcPR, destPR;
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guchar *mask;
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gint has_alpha;
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gint alpha, bytes;
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gint x1, y1, x2, y2;
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GimpHistogram *hist;
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GimpLut *lut;
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
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mask = NULL;
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bytes = gimp_drawable_bytes (drawable);
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has_alpha = gimp_drawable_has_alpha (drawable);
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alpha = has_alpha ? (bytes - 1) : bytes;
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hist = gimp_histogram_new ();
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gimp_drawable_calculate_histogram (drawable, hist);
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/* Build equalization LUT */
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lut = eq_histogram_lut_new (hist, bytes);
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/* Apply the histogram */
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gimp_drawable_mask_bounds (drawable, &x1, &y1, &x2, &y2);
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pixel_region_init (&srcPR, gimp_drawable_data (drawable),
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x1, y1, (x2 - x1), (y2 - y1), FALSE);
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pixel_region_init (&destPR, gimp_drawable_shadow (drawable),
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x1, y1, (x2 - x1), (y2 - y1), TRUE);
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pixel_regions_process_parallel ((p_func) gimp_lut_process, lut,
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2, &srcPR, &destPR);
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gimp_lut_free (lut);
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gimp_histogram_free (hist);
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gimp_drawable_merge_shadow (drawable, TRUE);
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gimp_drawable_update (drawable,
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x1, y1,
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(x2 - x1), (y2 - y1));
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}
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