3f9e82004e
2008-10-12 Michael Natterer <mitch@gimp.org> * app/gegl/gimpoperationpointcomposer.[ch]: renamed this class... * app/gegl/gimpoperationlayermode.[ch]: ...to this and add an own process() virtual function so we are free to hack even more badly in order to support legacy layer modes and proper ones which do meningfiul things to alpha. Simply redirect GeglOperationPointComposer's compose() calls to our own vfunc for now. * app/gegl/gegl-types.h * app/gegl/Makefile.am: changed accordingly. * app/gegl/gimpoperation*mode.[ch]: changed parent class and implemented process() method accordingly. svn path=/trunk/; revision=27251
85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimpoperationdifferencemode.c
|
|
* Copyright (C) 2008 Michael Natterer <mitch@gimp.org>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <gegl.h>
|
|
|
|
#include "gegl-types.h"
|
|
|
|
#include "gimpoperationdifferencemode.h"
|
|
|
|
|
|
static gboolean gimp_operation_difference_mode_process (GeglOperation *operation,
|
|
void *in_buf,
|
|
void *aux_buf,
|
|
void *out_buf,
|
|
glong samples,
|
|
const GeglRectangle *roi);
|
|
|
|
|
|
G_DEFINE_TYPE (GimpOperationDifferenceMode, gimp_operation_difference_mode,
|
|
GIMP_TYPE_OPERATION_LAYER_MODE)
|
|
|
|
|
|
static void
|
|
gimp_operation_difference_mode_class_init (GimpOperationDifferenceModeClass *klass)
|
|
{
|
|
GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (klass);
|
|
GimpOperationLayerModeClass *mode_class = GIMP_OPERATION_LAYER_MODE_CLASS (klass);
|
|
|
|
operation_class->name = "gimp-difference-mode";
|
|
operation_class->description = "GIMP difference mode operation";
|
|
|
|
mode_class->process = gimp_operation_difference_mode_process;
|
|
}
|
|
|
|
static void
|
|
gimp_operation_difference_mode_init (GimpOperationDifferenceMode *self)
|
|
{
|
|
}
|
|
|
|
static gboolean
|
|
gimp_operation_difference_mode_process (GeglOperation *operation,
|
|
void *in_buf,
|
|
void *aux_buf,
|
|
void *out_buf,
|
|
glong samples,
|
|
const GeglRectangle *roi)
|
|
{
|
|
gfloat *src = in_buf;
|
|
gfloat *aux = aux_buf;
|
|
gfloat *dest = out_buf;
|
|
|
|
while (samples--)
|
|
{
|
|
dest[RED_PIX] = src[RED_PIX];
|
|
dest[GREEN_PIX] = src[GREEN_PIX];
|
|
dest[BLUE_PIX] = src[BLUE_PIX];
|
|
dest[ALPHA_PIX] = src[ALPHA_PIX];
|
|
|
|
src += 4;
|
|
aux += 4;
|
|
dest += 4;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|