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51a6467968
Code: All references in the code not related to themes, keybindings, or GConf were changed from 'metacity' to 'mutter'. This includes, among other things, strings, comments, the atoms used in the message protocol, and the envvars used for debugging. The GConf schema file was reduced to the 3 settings new to mutter. The overall version was brought up to 2.27 to match current gnome. Structure: All files named '*metacity*' were renamed '*mutter*' with appropriate changes in the automake system. Files removed are doc/creating_themes, src/themes, doc/metacity-theme.dtd, metacity.doap. These files will eventually end up in an external gnome-wm-data module. Installation location: On the filesystem the mutter-plugindir was change from $(libdir)/metacity/plugins/clutter to just $(libdir)/mutter/plugins. The mutter-plugins.pc.in reflects these changes. Note: mutter.desktop.in and mutter-wm.desktop both continue to have X-GNOME-WMSettingsModule=metacity set. This allows gnome-control-center to continue using libmetacity.so for configuration. This is fine since most the general keybindings and wm settings are being read from /apps/metacity/* in gconf.
110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
/* Hack for grayscaling an image */
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/*
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* Copyright (C) 2002 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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
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* 02111-1307, USA.
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*/
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <math.h>
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#define INTENSITY(r, g, b) ((r) * 0.30 + (g) * 0.59 + (b) * 0.11)
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static GdkPixbuf*
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grayscale_pixbuf (GdkPixbuf *pixbuf)
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{
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GdkPixbuf *gray;
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guchar *pixels;
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int rowstride;
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int pixstride;
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int row;
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int n_rows;
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int width;
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gray = gdk_pixbuf_copy (pixbuf);
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rowstride = gdk_pixbuf_get_rowstride (gray);
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pixstride = gdk_pixbuf_get_has_alpha (gray) ? 4 : 3;
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pixels = gdk_pixbuf_get_pixels (gray);
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n_rows = gdk_pixbuf_get_height (gray);
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width = gdk_pixbuf_get_width (gray);
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row = 0;
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while (row < n_rows)
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{
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guchar *p = pixels + row * rowstride;
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guchar *end = p + (pixstride * width);
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while (p != end)
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{
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double v = INTENSITY (p[0], p[1], p[2]);
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p[0] = (guchar) v;
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p[1] = (guchar) v;
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p[2] = (guchar) v;
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p += pixstride;
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}
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++row;
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}
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return gray;
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}
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int
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main (int argc, char **argv)
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{
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GdkPixbuf *pixbuf;
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GdkPixbuf *gray;
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GError *err;
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if (argc != 2)
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{
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g_printerr ("specify a single image on the command line\n");
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return 1;
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}
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g_type_init ();
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err = NULL;
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pixbuf = gdk_pixbuf_new_from_file (argv[1], &err);
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if (err != NULL)
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{
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g_printerr ("failed to load image: %s\n", err->message);
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g_error_free (err);
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return 1;
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}
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gray = grayscale_pixbuf (pixbuf);
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err = NULL;
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gdk_pixbuf_save (gray, "grayscale.png", "png", &err, NULL);
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if (err != NULL)
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{
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g_printerr ("failed to save image: %s\n", err->message);
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g_error_free (err);
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return 1;
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}
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g_print ("wrote grayscale.png\n");
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return 0;
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}
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