mirror of https://github.com/GNOME/gimp.git
83 lines
2.3 KiB
C
83 lines
2.3 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 <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "appenv.h"
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#include "drawable.h"
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#include "interface.h"
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#include "invert.h"
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#include "gimage.h"
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#include "gimplut.h"
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#include "lut_funcs.h"
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#include "config.h"
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#include "libgimp/gimpintl.h"
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void
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image_invert (GimpImage *gimage)
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{
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GimpDrawable *drawable;
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Argument *return_vals;
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int nreturn_vals;
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drawable = gimage_active_drawable (gimage);
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if (gimp_drawable_is_indexed (drawable))
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{
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g_message (_("Invert does not operate on indexed drawables."));
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return;
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}
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return_vals = procedural_db_run_proc ("gimp_invert",
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&nreturn_vals,
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PDB_DRAWABLE, drawable_ID (drawable),
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PDB_END);
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if (!return_vals || return_vals[0].value.pdb_int != PDB_SUCCESS)
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g_message (_("Invert operation failed."));
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procedural_db_destroy_args (return_vals, nreturn_vals);
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}
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/* Inverter */
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void
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invert (GimpDrawable *drawable)
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{
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PixelRegion srcPR, destPR;
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int x1, y1, x2, y2;
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GimpLut *lut;
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lut = invert_lut_new(gimp_drawable_bytes(drawable));
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drawable_mask_bounds (drawable, &x1, &y1, &x2, &y2);
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pixel_region_init (&srcPR, drawable_data (drawable), x1, y1, (x2 - x1), (y2 - y1), FALSE);
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pixel_region_init (&destPR, drawable_shadow (drawable), 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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drawable_merge_shadow (drawable, TRUE);
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drawable_update (drawable, x1, y1, (x2 - x1), (y2 - y1));
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}
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