be1215a221
2001-12-18 Michael Natterer <mitch@gimp.org> * configure.in: added -DGDK_PIXBUF_DISABLE_DEPRECATED to CPPFLAGS. * app/core/gimpbuffer.[ch]: gimp_buffer_get_[width|height]: added "const" to the GimpBuffer parameter. * app/core/gimpchannel.c: indentation and comment changes. * app/core/gimpdrawable-desaturate.c: don't include "paint-funcs/paint-funcs.h". * app/display/gimpdisplayshell.c: don't include "base/temp-buf.h". * app/gui/gui.c: removed the image container's "name_changed" handler. * app/gui/palette-import-dialog.[ch]: use GimpPreview and GimpContainerMenu instead of doing the same manually. Removed lots of code. Not perfect yet. * app/tools/gimpfuzzyselecttool.c: no need to include tile stuff. * app/widgets/gimpcontainerview-utils.c: better g_warning() message. * tools/pdbgen/pdb/paint_tools.pdb: don't include "base/tile-manager.h". * app/pdb/paint_tools_cmds.c: regenerated. * data/images/Makefile.am * data/images/gimp_logo.ppm: removed... * data/images/gimp_logo.png: ...and added as PNG. * app/gui/about-dialog.c: use gdk_pixbuf_new_from_file() to load the PNG logo instead of manually parsing the PPM.
96 lines
2.5 KiB
C
96 lines
2.5 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 <glib-object.h>
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#include "core-types.h"
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#include "base/pixel-region.h"
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#include "gimpdrawable.h"
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#include "gimpdrawable-desaturate.h"
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#include "gimpimage.h"
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void
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gimp_drawable_desaturate (GimpDrawable *drawable)
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{
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PixelRegion srcPR, destPR;
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guchar *src, *s;
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guchar *dest, *d;
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gint h, j;
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gint lightness, min, max;
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gint has_alpha;
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gpointer pr;
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gint x1, y1, x2, y2;
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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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has_alpha = gimp_drawable_has_alpha (drawable);
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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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for (pr = pixel_regions_register (2, &srcPR, &destPR);
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pr != NULL;
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pr = pixel_regions_process (pr))
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{
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src = srcPR.data;
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dest = destPR.data;
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h = srcPR.h;
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while (h--)
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{
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s = src;
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d = dest;
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for (j = 0; j < srcPR.w; j++)
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{
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max = MAX (s[RED_PIX], s[GREEN_PIX]);
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max = MAX (max, s[BLUE_PIX]);
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min = MIN (s[RED_PIX], s[GREEN_PIX]);
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min = MIN (min, s[BLUE_PIX]);
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lightness = (max + min) / 2;
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d[RED_PIX] = lightness;
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d[GREEN_PIX] = lightness;
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d[BLUE_PIX] = lightness;
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if (has_alpha)
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d[ALPHA_PIX] = s[ALPHA_PIX];
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d += destPR.bytes;
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s += srcPR.bytes;
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}
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src += srcPR.rowstride;
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dest += destPR.rowstride;
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}
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}
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gimp_drawable_merge_shadow (drawable, TRUE);
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gimp_drawable_update (drawable, x1, y1, (x2 - x1), (y2 - y1));
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}
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