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/*
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This is a plug-in for the GIMP.
*
* Colormap-Rotation plug-in. Exchanges two color ranges.
*
* Copyright (C) 1999 Sven Anders (anderss@fmi.uni-passau.de)
* Based on code from Pavel Grinfeld (pavel@ml.com)
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*----------------------------------------------------------------------------
* Change log:
*
* Version 2.0, 04 April 1999.
* Nearly complete rewrite, made plug-in stable.
* (Works with GIMP 1.1 and GTK+ 1.2)
*
* Version 1.0, 27 March 1997.
* Initial (unstable) release by Pavel Grinfeld
*
*----------------------------------------------------------------------------*/
/* Global defines */
#define SWAP(X,Y) {float t=X; X=Y; Y=t;}
/* used in 'rcm_callback.c' and 'rcm_dialog.c' */
float arctg (gfloat y,
gfloat x);
float min_prox (gfloat alpha,
gfloat beta,
gfloat angle);
float *closest (gfloat *alpha,
gfloat *beta,
gfloat angle);
float angle_mod_2PI (gfloat angle);
ReducedImage *rcm_reduce_image (GimpDrawable *drawable,
GimpDrawable *mask,
gint longer_size,
gint selection);
void rcm_render_preview (GtkWidget *preview);
void rcm_render_circle (GtkWidget *preview,
gint sum,
gint margin);
/* only used in 'rcm.c' (or local) */
float rcm_angle_inside_slice (float angle,
RcmAngle *slice);
gint rcm_is_gray (float s);
float rcm_linear (float,
float,
float,
float,
float);
float rcm_left_end (RcmAngle *angle);
float rcm_right_end (RcmAngle *angle);
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