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d240f623f1
2001-05-15 Michael Natterer <mitch@gimp.org> * configure.in: new directory app/base/ * app/Makefile.am * app/boundary.[ch] * app/brush_scale.[ch] * app/gimpchecks.h * app/gimplut.[ch] * app/pixel_processor.[ch] * app/pixel_region.[ch] * app/pixel_surround.[ch] * app/temp_buf.[ch] * app/tile.[ch] * app/tile_cache.[ch] * app/tile_manager.[ch] * app/tile_manager_pvt.h * app/tile_pvt.h * app/tile_swap.[ch]: moved to base/ * app/base/Makefile.am * app/base/base-types.h * app/base/*: new directory for the sub-object pixel maniplation and storage stuff. Does not include Gtk+ or anything outside base/. Did some cleanup in all files. * app/appenums.h * app/apptypes.h * app/core/gimpimage.h: removed types which are now in base/base-types.h. * app/base/base-config.[ch] * app/gimprc.[ch]: put the config variables for base/ to their own file so base/ doesn not have to include gimprc.h (does not yet work, i.e. the variables are un-configurable right now) * app/main.c: set a log handler for "Gimp-Base". * app/paint-funcs/Makefile.am * app/paint-funcs/paint-funcs.[ch]: removed the color hash which maps RGB to color indices because it's a totally standalone system which has nothing to do with the paint-funcs and introduced a GimpImage dependency. paint-funcs/ should be considered on the same sub-object (glib-only) level as base/, only in a different directory. * app/core/Makefile.am * app/core/gimpimage-colorhash.[ch]: put the color hash here. * app/gimage.c: don't invalidate the color hash here... * app/core/gimpimage.c: ... but in the colormap_changed() default inplementation. Initialize the hash in class_init(). * tools/pdbgen/Makefile.am: scan app/base/base-types.h for enums. * tools/pdbgen/enums.pl: regenerated. * app/[lots] * app/core/[of] * app/gui/[files] * app/pdb/[all] * app/tools/[over] * app/widgets/[the] * tools/pdbgen/pdb/[place]: changed #includes accordingly. And use base_config->value instead of the stuff from gimprc.h.
100 lines
2.6 KiB
C
100 lines
2.6 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/pixel-region.h"
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#include "paint-funcs/paint-funcs.h"
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#include "drawable.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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drawable_update (drawable, x1, y1, (x2 - x1), (y2 - y1));
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}
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