gimp/libgimpcolor/gimpbilinear.h
Michael Natterer 75760de9d1 libgimp/Makefile.am libgimp/gimp.h libgimp/gimpadaptivesupersample.[ch]
2001-01-23  Michael Natterer  <mitch@gimp.org>

	* libgimp/Makefile.am
	* libgimp/gimp.h
	* libgimp/gimpadaptivesupersample.[ch]
	* libgimp/gimpbilinear.[ch]: new files cut out of LibGCK.

	* plug-ins/libgck/gck/gck.h
	* plug-ins/libgck/gck/gckcolor.c: removed the bilinear and
	supersample code.

	* app/apptypes.h
	* app/asupsample.[ch]
	* app/tools/blend.c: made the adaptive_supersample interface the
	same as in libgimp but don't use the libgimp function yet.

	The libgimp function takes total transparancy into account when
	weighting the 4 resulting RGBA values, the app function always
	weights them equally. Please have a look at the code.

	* plug-ins/Lighting/lighting_image.c
	* plug-ins/MapObject/mapobject_apply.c
	* plug-ins/MapObject/mapobject_image.[ch]: changed accordingly.

	* app/disp_callbacks.c: paranoia cleanups.
2001-01-23 00:53:12 +00:00

58 lines
1.7 KiB
C

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GIMP_BILINEAR_H__
#define __GIMP_BILINEAR_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* For information look into the C source or the html documentation */
/* bilinear interpolation functions taken from LibGCK */
gdouble gimp_bilinear (gdouble x,
gdouble y,
gdouble *values);
guchar gimp_bilinear_8 (gdouble x,
gdouble y,
guchar *values);
guint16 gimp_bilinear_16 (gdouble x,
gdouble y,
guint16 *values);
guint32 gimp_bilinear_32 (gdouble x,
gdouble y,
guint32 *values);
GimpRGB gimp_bilinear_rgb (gdouble x,
gdouble y,
GimpRGB *values);
GimpRGB gimp_bilinear_rgba (gdouble x,
gdouble y,
GimpRGB *values);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GIMP_BILINEAR_H__ */