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app: duplicate difference mode, new and legacy

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This commit is contained in:
Øyvind Kolås
2017-01-09 23:44:57 +01:00
parent 9d5893f402
commit b6be1b768e
11 changed files with 267 additions and 57 deletions
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4
app/operations/layer-modes/Makefile.am
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@ -25,7 +25,9 @@ libapplayermodes_generic_a_sources = \
gimpoperationmultiply.c \
gimpoperationmultiply.h \
gimpoperationscreen.c \
gimpoperationscreen.h
gimpoperationscreen.h \
gimpoperationdifference.c \
gimpoperationdifference.h
libapplayermodes_sse2_a_sources = \
gimpoperationnormal-sse2.c

136
app/operations/layer-modes/gimpoperationdifference.c Normal file
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@ -0,0 +1,136 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpoperationdifferencemode.c
* Copyright (C) 2008 Michael Natterer <mitch@gimp.org>
* 2012 Ville Sokk <ville.sokk@gmail.com>
* 2017 Øyvind Kolås <pippin@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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl-plugin.h>
#include "../operations-types.h"
#include "gimpoperationdifference.h"
static gboolean gimp_operation_difference_process (GeglOperation *operation,
void *in_buf,
void *aux_buf,
void *aux2_buf,
void *out_buf,
glong samples,
const GeglRectangle *roi,
gint level);
G_DEFINE_TYPE (GimpOperationDifference, gimp_operation_difference,
GIMP_TYPE_OPERATION_POINT_LAYER_MODE)
static void
gimp_operation_difference_class_init (GimpOperationDifferenceClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointComposer3Class *point_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_class = GEGL_OPERATION_POINT_COMPOSER3_CLASS (klass);
gegl_operation_class_set_keys (operation_class,
"name", "gimp:difference",
"description", "GIMP difference mode operation",
NULL);
point_class->process = gimp_operation_difference_process;
}
static void
gimp_operation_difference_init (GimpOperationDifference *self)
{
}
static gboolean
gimp_operation_difference_process (GeglOperation *operation,
void *in_buf,
void *aux_buf,
void *aux2_buf,
void *out_buf,
glong samples,
const GeglRectangle *roi,
gint level)
{
gfloat opacity = GIMP_OPERATION_POINT_LAYER_MODE (operation)->opacity;
return gimp_operation_difference_process_pixels (in_buf, aux_buf, aux2_buf, out_buf, opacity, samples, roi, level);
}
gboolean
gimp_operation_difference_process_pixels (gfloat *in,
gfloat *layer,
gfloat *mask,
gfloat *out,
gfloat opacity,
glong samples,
const GeglRectangle *roi,
gint level)
{
const gboolean has_mask = mask != NULL;
while (samples--)
{
gfloat comp_alpha;
comp_alpha = layer[ALPHA] * opacity;
if (has_mask)
comp_alpha *= *mask;
if (comp_alpha != 0.0f)
{
gint b;
for (b = RED; b < ALPHA; b++)
{
gfloat comp = in[b] - layer[b];
comp = (comp < 0) ? -comp : comp;
out[b] = comp * comp_alpha + in[b] * (1.0 - comp_alpha);
}
}
else
{
gint b;
for (b = RED; b < ALPHA; b++)
{
out[b] = in[b];
}
}
out[ALPHA] = in[ALPHA];
in += 4;
layer += 4;
out += 4;
if (has_mask)
mask++;
}
return TRUE;
}

63
app/operations/layer-modes/gimpoperationdifference.h Normal file
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@ -0,0 +1,63 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpoperationdifference.h
* Copyright (C) 2008 Michael Natterer <mitch@gimp.org>
* 2017 Øyvind Kolås <pippin@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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GIMP_OPERATION_DIFFERENCE_H__
#define __GIMP_OPERATION_DIFFERENCE_H__
#include "../gimpoperationpointlayermode.h"
#define GIMP_TYPE_OPERATION_DIFFERENCE (gimp_operation_difference_get_type ())
#define GIMP_OPERATION_DIFFERENCE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_OPERATION_DIFFERENCE, GimpOperationDifference))
#define GIMP_OPERATION_DIFFERENCE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_OPERATION_DIFFERENCE, GimpOperationDifferenceClass))
#define GIMP_IS_OPERATION_DIFFERENCE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_OPERATION_DIFFERENCE))
#define GIMP_IS_OPERATION_DIFFERENCE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_OPERATION_DIFFERENCE))
#define GIMP_OPERATION_DIFFERENCE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_OPERATION_DIFFERENCE, GimpOperationDifferenceClass))
typedef struct _GimpOperationDifference GimpOperationDifference;
typedef struct _GimpOperationDifferenceClass GimpOperationDifferenceClass;
struct _GimpOperationDifference
{
GimpOperationPointLayerMode parent_instance;
};
struct _GimpOperationDifferenceClass
{
GimpOperationPointLayerModeClass parent_class;
};
GType gimp_operation_difference_get_type (void) G_GNUC_CONST;
gboolean gimp_operation_difference_process_pixels (gfloat *in,
gfloat *layer,
gfloat *mask,
gfloat *out,
gfloat opacity,
glong samples,
const GeglRectangle *roi,
gint level);
#endif /* __GIMP_OPERATION_DIFFERENCE_H__ */