9b6703371e
Change GimpOperationPointLayerMode's "premultiplied" to "linear" and set format to "RGBA float" if it's TRUE. Everything defaults to FALSE so nothing changes.
123 lines
4.2 KiB
C
123 lines
4.2 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimpoperationerasemode.c
|
|
* Copyright (C) 2008 Michael Natterer <mitch@gimp.org>
|
|
* 2012 Ville Sokk <ville.sokk@gmail.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.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <gegl-plugin.h>
|
|
|
|
#include "operations-types.h"
|
|
|
|
#include "gimpoperationerasemode.h"
|
|
|
|
|
|
static void prepare (GeglOperation *operation);
|
|
static gboolean gimp_operation_erase_mode_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 (GimpOperationEraseMode, gimp_operation_erase_mode,
|
|
GIMP_TYPE_OPERATION_POINT_LAYER_MODE)
|
|
|
|
|
|
static void
|
|
gimp_operation_erase_mode_class_init (GimpOperationEraseModeClass *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:erase-mode",
|
|
"description", "GIMP erase mode operation",
|
|
NULL);
|
|
|
|
operation_class->prepare = prepare;
|
|
point_class->process = gimp_operation_erase_mode_process;
|
|
}
|
|
|
|
static void
|
|
gimp_operation_erase_mode_init (GimpOperationEraseMode *self)
|
|
{
|
|
}
|
|
|
|
static void
|
|
prepare (GeglOperation *operation)
|
|
{
|
|
const Babl *format = babl_format ("RGBA float");
|
|
|
|
gegl_operation_set_format (operation, "input", format);
|
|
gegl_operation_set_format (operation, "aux", format);
|
|
gegl_operation_set_format (operation, "aux2", babl_format ("Y float"));
|
|
gegl_operation_set_format (operation, "output", format);
|
|
}
|
|
|
|
static gboolean
|
|
gimp_operation_erase_mode_process (GeglOperation *operation,
|
|
void *in_buf,
|
|
void *aux_buf,
|
|
void *aux2_buf,
|
|
void *out_buf,
|
|
glong samples,
|
|
const GeglRectangle *roi,
|
|
gint level)
|
|
{
|
|
GimpOperationPointLayerMode *point = GIMP_OPERATION_POINT_LAYER_MODE (operation);
|
|
gdouble opacity = point->opacity;
|
|
gfloat *in = in_buf;
|
|
gfloat *layer = aux_buf;
|
|
gfloat *mask = aux2_buf;
|
|
gfloat *out = out_buf;
|
|
const gboolean has_mask = mask != NULL;
|
|
|
|
while (samples--)
|
|
{
|
|
gint b;
|
|
gdouble value = opacity;
|
|
|
|
if (has_mask)
|
|
value *= (*mask);
|
|
|
|
for (b = RED; b < ALPHA; b++)
|
|
{
|
|
out[b] = in[b];
|
|
}
|
|
|
|
out[ALPHA] = in[ALPHA] - in[ALPHA] * layer[ALPHA] * value;
|
|
|
|
in += 4;
|
|
layer += 4;
|
|
out += 4;
|
|
|
|
if (has_mask)
|
|
mask ++;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|