e2daae315b
2001-08-14 Michael Natterer <mitch@gimp.org> * app/gdisplay.h: an evil temp_hack which lets GimpContext managing the active display withoug including "gdisplay.h". Will go away as soon ad context properties are registered dynamically. * app/module_db.c: cleaned up the object code in preparation of moving it to core/. * app/path.c: connect to GimpImage's * app/core/gimpobject.[ch]: derive it from GObject, not from GtkObject any more (yeah :-) * app/core/*.c: #include <glib-object.h> instead of <gtk/gtk.h>, removed some remaining GtkObject-isms. (left in a few #include <gtk/gtk.h> where bigger changes are needed to get rid of the UI dependency). * app/core/core-types.h: #include <gdk-pixbuf/gdk-pixbuf.h> here temporarily. * app/core/gimp.c (gimp_create_display): unref the image after creating it's first display. * app/core/gimpbrush.[ch]: disabled the parts of the code which depend on GimpPaintTool. * app/core/gimpbrushgenerated.c * app/core/gimpbrushpipe.c: changed accordingly. * app/core/gimpcontext.[ch]: evil hack (see above) to manage the active display without including "gdisplay.h" * app/core/gimpimage-mask.[ch]: pass a context to gimage_mask_stroke() and get the current tool's PDB string from there. * app/core/gimpedit.c: changed accordingly. * app/core/gimpimage.c: use gimp_image_update() instead of gdisplays_update_full(). * app/gui/color-area.c * app/gui/colormap-dialog.c * app/gui/dialogs-constructors.c * app/gui/edit-commands.c * app/gui/image-commands.c * app/gui/toolbox.c: changed accordingly (don't use Gtk methods on GObjects). * app/gui/menus.c: fix some const warnings by explicit casting. * app/tools/*.[ch]: ported all tools to GObject, some minor cleanup while i was on it. * app/widgets/gimpdialogfactory.[ch]: ported to GObject. * app/widgets/gimplayerlistview.h: added FOO_GET_CLASS() macro. * tools/pdbgen/app.pl: added a "widgets_eek" hack like "tools_eek" which inserts #include "widgets/widgets-types.h" before ordinary includes. * tools/pdbgen/pdb/brush_select.pdb * tools/pdbgen/pdb/edit.pdb * app/pdb/brush_select_cmds.c * app/pdb/edit_cmds.c: changed according to the stuff above.
99 lines
2.5 KiB
C
99 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 "paint-funcs/paint-funcs.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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