260 lines
8.0 KiB
C
260 lines
8.0 KiB
C
/* PIKA - Photo and Image Kooker Application
|
|
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
|
|
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
|
|
*
|
|
* Original copyright, applying to most contents (license remains unchanged):
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* pika-gegl-nodes.h
|
|
* Copyright (C) 2012 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 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 <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <gegl.h>
|
|
|
|
#include "pika-gegl-types.h"
|
|
|
|
#include "operations/layer-modes/pika-layer-modes.h"
|
|
|
|
#include "pika-gegl-nodes.h"
|
|
#include "pika-gegl-utils.h"
|
|
|
|
|
|
GeglNode *
|
|
pika_gegl_create_flatten_node (const PikaRGB *background,
|
|
const Babl *space,
|
|
PikaLayerColorSpace composite_space)
|
|
{
|
|
GeglNode *node;
|
|
GeglNode *input;
|
|
GeglNode *output;
|
|
GeglNode *color;
|
|
GeglNode *mode;
|
|
GeglColor *c;
|
|
|
|
g_return_val_if_fail (background != NULL, NULL);
|
|
g_return_val_if_fail (composite_space == PIKA_LAYER_COLOR_SPACE_RGB_LINEAR ||
|
|
composite_space == PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
|
|
NULL);
|
|
|
|
node = gegl_node_new ();
|
|
|
|
input = gegl_node_get_input_proxy (node, "input");
|
|
output = gegl_node_get_output_proxy (node, "output");
|
|
|
|
c = pika_gegl_color_new (background, space);
|
|
color = gegl_node_new_child (node,
|
|
"operation", "gegl:color",
|
|
"value", c,
|
|
"format", pika_layer_mode_get_format (
|
|
PIKA_LAYER_MODE_NORMAL,
|
|
PIKA_LAYER_COLOR_SPACE_AUTO,
|
|
composite_space,
|
|
PIKA_LAYER_COMPOSITE_AUTO,
|
|
NULL),
|
|
NULL);
|
|
g_object_unref (c);
|
|
|
|
pika_gegl_node_set_underlying_operation (node, color);
|
|
|
|
mode = gegl_node_new_child (node,
|
|
"operation", "pika:normal",
|
|
NULL);
|
|
pika_gegl_mode_node_set_mode (mode,
|
|
PIKA_LAYER_MODE_NORMAL,
|
|
PIKA_LAYER_COLOR_SPACE_AUTO,
|
|
composite_space,
|
|
PIKA_LAYER_COMPOSITE_AUTO);
|
|
|
|
gegl_node_connect (input, "output",
|
|
mode, "aux");
|
|
gegl_node_link_many (color, mode, output, NULL);
|
|
|
|
return node;
|
|
}
|
|
|
|
GeglNode *
|
|
pika_gegl_create_apply_opacity_node (GeglBuffer *mask,
|
|
gint mask_offset_x,
|
|
gint mask_offset_y,
|
|
gdouble opacity)
|
|
{
|
|
GeglNode *node;
|
|
GeglNode *input;
|
|
GeglNode *output;
|
|
GeglNode *opacity_node;
|
|
GeglNode *mask_source;
|
|
|
|
g_return_val_if_fail (GEGL_IS_BUFFER (mask), NULL);
|
|
|
|
node = gegl_node_new ();
|
|
|
|
input = gegl_node_get_input_proxy (node, "input");
|
|
output = gegl_node_get_output_proxy (node, "output");
|
|
|
|
opacity_node = gegl_node_new_child (node,
|
|
"operation", "gegl:opacity",
|
|
"value", opacity,
|
|
NULL);
|
|
|
|
pika_gegl_node_set_underlying_operation (node, opacity_node);
|
|
|
|
mask_source = pika_gegl_add_buffer_source (node, mask,
|
|
mask_offset_x,
|
|
mask_offset_y);
|
|
|
|
gegl_node_link_many (input, opacity_node, output, NULL);
|
|
gegl_node_connect (mask_source, "output",
|
|
opacity_node, "aux");
|
|
|
|
return node;
|
|
}
|
|
|
|
GeglNode *
|
|
pika_gegl_create_transform_node (const PikaMatrix3 *matrix)
|
|
{
|
|
GeglNode *node;
|
|
|
|
g_return_val_if_fail (matrix != NULL, NULL);
|
|
|
|
node = gegl_node_new_child (NULL,
|
|
"operation", "gegl:transform",
|
|
NULL);
|
|
|
|
pika_gegl_node_set_matrix (node, matrix);
|
|
|
|
return node;
|
|
}
|
|
|
|
GeglNode *
|
|
pika_gegl_add_buffer_source (GeglNode *parent,
|
|
GeglBuffer *buffer,
|
|
gint offset_x,
|
|
gint offset_y)
|
|
{
|
|
GeglNode *buffer_source;
|
|
|
|
g_return_val_if_fail (GEGL_IS_NODE (parent), NULL);
|
|
g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
|
|
|
|
buffer_source = gegl_node_new_child (parent,
|
|
"operation", "gegl:buffer-source",
|
|
"buffer", buffer,
|
|
NULL);
|
|
|
|
if (offset_x != 0 || offset_y != 0)
|
|
{
|
|
GeglNode *translate =
|
|
gegl_node_new_child (parent,
|
|
"operation", "gegl:translate",
|
|
"x", (gdouble) offset_x,
|
|
"y", (gdouble) offset_y,
|
|
NULL);
|
|
|
|
gegl_node_link (buffer_source, translate);
|
|
|
|
buffer_source = translate;
|
|
}
|
|
|
|
return buffer_source;
|
|
}
|
|
|
|
void
|
|
pika_gegl_mode_node_set_mode (GeglNode *node,
|
|
PikaLayerMode mode,
|
|
PikaLayerColorSpace blend_space,
|
|
PikaLayerColorSpace composite_space,
|
|
PikaLayerCompositeMode composite_mode)
|
|
{
|
|
gdouble opacity;
|
|
|
|
g_return_if_fail (GEGL_IS_NODE (node));
|
|
|
|
if (blend_space == PIKA_LAYER_COLOR_SPACE_AUTO)
|
|
blend_space = pika_layer_mode_get_blend_space (mode);
|
|
|
|
if (composite_space == PIKA_LAYER_COLOR_SPACE_AUTO)
|
|
composite_space = pika_layer_mode_get_composite_space (mode);
|
|
|
|
if (composite_mode == PIKA_LAYER_COMPOSITE_AUTO)
|
|
composite_mode = pika_layer_mode_get_composite_mode (mode);
|
|
|
|
gegl_node_get (node,
|
|
"opacity", &opacity,
|
|
NULL);
|
|
|
|
/* setting the operation creates a new instance, so we have to set
|
|
* all its properties
|
|
*/
|
|
gegl_node_set (node,
|
|
"operation", pika_layer_mode_get_operation_name (mode),
|
|
"layer-mode", mode,
|
|
"opacity", opacity,
|
|
"blend-space", blend_space,
|
|
"composite-space", composite_space,
|
|
"composite-mode", composite_mode,
|
|
NULL);
|
|
}
|
|
|
|
void
|
|
pika_gegl_mode_node_set_opacity (GeglNode *node,
|
|
gdouble opacity)
|
|
{
|
|
g_return_if_fail (GEGL_IS_NODE (node));
|
|
|
|
gegl_node_set (node,
|
|
"opacity", opacity,
|
|
NULL);
|
|
}
|
|
|
|
void
|
|
pika_gegl_node_set_matrix (GeglNode *node,
|
|
const PikaMatrix3 *matrix)
|
|
{
|
|
gchar *matrix_string;
|
|
|
|
g_return_if_fail (GEGL_IS_NODE (node));
|
|
g_return_if_fail (matrix != NULL);
|
|
|
|
matrix_string = gegl_matrix3_to_string ((GeglMatrix3 *) matrix);
|
|
|
|
gegl_node_set (node,
|
|
"transform", matrix_string,
|
|
NULL);
|
|
|
|
g_free (matrix_string);
|
|
}
|
|
|
|
void
|
|
pika_gegl_node_set_color (GeglNode *node,
|
|
const PikaRGB *color,
|
|
const Babl *space)
|
|
{
|
|
GeglColor *gegl_color;
|
|
|
|
g_return_if_fail (GEGL_IS_NODE (node));
|
|
g_return_if_fail (color != NULL);
|
|
|
|
gegl_color = pika_gegl_color_new (color, space);
|
|
|
|
gegl_node_set (node,
|
|
"value", gegl_color,
|
|
NULL);
|
|
|
|
g_object_unref (gegl_color);
|
|
}
|
