gimp/app/gegl/gimp-gegl-nodes.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimp-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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include "gimp-gegl-types.h"
#include "gimp-gegl-nodes.h"
#include "gimp-gegl-utils.h"
GeglNode *
gimp_gegl_create_flatten_node (const GimpRGB *background)
{
GeglNode *node;
GeglNode *input;
GeglNode *output;
GeglNode *color;
GeglNode *over;
GeglColor *c;
g_return_val_if_fail (background != NULL, NULL);
node = gegl_node_new ();
input = gegl_node_get_input_proxy (node, "input");
output = gegl_node_get_output_proxy (node, "output");
c = gimp_gegl_color_new (background);
color = gegl_node_new_child (node,
"operation", "gegl:color",
"value", c,
NULL);
g_object_unref (c);
over = gegl_node_new_child (node,
"operation", "gegl:over",
NULL);
gegl_node_connect_to (input, "output",
over, "aux");
gegl_node_connect_to (color, "output",
over, "input");
gegl_node_connect_to (over, "output",
output, "input");
return node;
}
GeglNode *
gimp_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);
mask_source = gimp_gegl_add_buffer_source (node, mask,
mask_offset_x,
mask_offset_y);
gegl_node_connect_to (input, "output",
opacity_node, "input");
gegl_node_connect_to (mask_source, "output",
opacity_node, "aux");
gegl_node_connect_to (opacity_node, "output",
output, "input");
return node;
}
GeglNode *
gimp_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_connect_to (buffer_source, "output",
translate, "input");
buffer_source = translate;
}
return buffer_source;
}
void
gimp_gegl_mode_node_set_mode (GeglNode *node,
GimpLayerMode mode,
gboolean linear)
{
const gchar *operation = "gimp:normal-mode";
gdouble opacity;
g_return_if_fail (GEGL_IS_NODE (node));
switch (mode)
{
case GIMP_LAYER_MODE_NORMAL:
operation = "gimp:normal-mode";
break;
case GIMP_LAYER_MODE_DISSOLVE:
operation = "gimp:dissolve-mode";
break;
case GIMP_LAYER_MODE_BEHIND:
operation = "gimp:behind-mode";
break;
case GIMP_LAYER_MODE_MULTIPLY_LEGACY:
operation = "gimp:multiply-mode";
break;
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case GIMP_LAYER_MODE_MULTIPLY:
case GIMP_LAYER_MODE_MULTIPLY_LINEAR:
operation = "gimp:multiply";
break;
case GIMP_LAYER_MODE_SCREEN_LEGACY:
operation = "gimp:screen-mode";
break;
case GIMP_LAYER_MODE_OVERLAY_LEGACY:
operation = "gimp:softlight-mode";
break;
case GIMP_LAYER_MODE_DIFFERENCE_LEGACY:
operation = "gimp:difference-mode";
break;
case GIMP_LAYER_MODE_ADDITION_LEGACY:
operation = "gimp:addition-mode";
break;
case GIMP_LAYER_MODE_SUBTRACT_LEGACY:
operation = "gimp:subtract-mode";
break;
case GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY:
operation = "gimp:darken-only-mode";
break;
case GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY:
operation = "gimp:lighten-only-mode";
break;
case GIMP_LAYER_MODE_HSV_HUE_LEGACY:
operation = "gimp:hue-mode";
break;
case GIMP_LAYER_MODE_HSV_SATURATION_LEGACY:
operation = "gimp:saturation-mode";
break;
case GIMP_LAYER_MODE_HSV_COLOR_LEGACY:
operation = "gimp:color-mode";
break;
case GIMP_LAYER_MODE_HSV_VALUE_LEGACY:
operation = "gimp:value-mode";
break;
case GIMP_LAYER_MODE_DIVIDE_LEGACY:
operation = "gimp:divide-mode";
break;
case GIMP_LAYER_MODE_DODGE_LEGACY:
operation = "gimp:dodge-mode";
break;
case GIMP_LAYER_MODE_BURN_LEGACY:
operation = "gimp:burn-mode";
break;
case GIMP_LAYER_MODE_HARDLIGHT_LEGACY:
operation = "gimp:hardlight-mode";
break;
case GIMP_LAYER_MODE_SOFTLIGHT_LEGACY:
operation = "gimp:softlight-mode";
break;
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY:
operation = "gimp:grain-extract-mode";
break;
case GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY:
operation = "gimp:grain-merge-mode";
break;
case GIMP_LAYER_MODE_COLOR_ERASE:
operation = "gimp:color-erase-mode";
break;
case GIMP_LAYER_MODE_OVERLAY:
operation = "gimp:overlay-mode";
break;
case GIMP_LAYER_MODE_LCH_HUE:
operation = "gimp:lch-hue-mode";
break;
case GIMP_LAYER_MODE_LCH_CHROMA:
operation = "gimp:lch-chroma-mode";
break;
case GIMP_LAYER_MODE_LCH_COLOR:
operation = "gimp:lch-color-mode";
break;
case GIMP_LAYER_MODE_LCH_LIGHTNESS:
operation = "gimp:lch-lightness-mode";
break;
case GIMP_LAYER_MODE_ERASE:
operation = "gimp:erase-mode"; break;
case GIMP_LAYER_MODE_REPLACE:
operation = "gimp:replace-mode";
break;
case GIMP_LAYER_MODE_ANTI_ERASE:
operation = "gimp:anti-erase-mode";
break;
default:
break;
}
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", operation,
"linear", linear,
"opacity", opacity,
NULL);
switch (mode)
{
case GIMP_LAYER_MODE_NORMAL:
case GIMP_LAYER_MODE_DISSOLVE:
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case GIMP_LAYER_MODE_MULTIPLY_LINEAR:
gegl_node_set (node,
"linear", TRUE,
NULL);
break;
case GIMP_LAYER_MODE_BEHIND:
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case GIMP_LAYER_MODE_MULTIPLY:
case GIMP_LAYER_MODE_MULTIPLY_LEGACY:
case GIMP_LAYER_MODE_SCREEN_LEGACY:
case GIMP_LAYER_MODE_ADDITION_LEGACY:
case GIMP_LAYER_MODE_SUBTRACT_LEGACY:
case GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_NORMAL_NON_LINEAR:
case GIMP_LAYER_MODE_OVERLAY_LEGACY:
case GIMP_LAYER_MODE_DIFFERENCE_LEGACY:
case GIMP_LAYER_MODE_HSV_HUE_LEGACY:
case GIMP_LAYER_MODE_HSV_SATURATION_LEGACY:
case GIMP_LAYER_MODE_HSV_COLOR_LEGACY:
case GIMP_LAYER_MODE_HSV_VALUE_LEGACY:
case GIMP_LAYER_MODE_DIVIDE_LEGACY:
case GIMP_LAYER_MODE_DODGE_LEGACY:
case GIMP_LAYER_MODE_BURN_LEGACY:
case GIMP_LAYER_MODE_HARDLIGHT_LEGACY:
case GIMP_LAYER_MODE_SOFTLIGHT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY:
case GIMP_LAYER_MODE_COLOR_ERASE:
case GIMP_LAYER_MODE_OVERLAY:
case GIMP_LAYER_MODE_ERASE:
case GIMP_LAYER_MODE_REPLACE:
case GIMP_LAYER_MODE_ANTI_ERASE:
case GIMP_LAYER_MODE_LCH_HUE:
case GIMP_LAYER_MODE_LCH_CHROMA:
case GIMP_LAYER_MODE_LCH_COLOR:
case GIMP_LAYER_MODE_LCH_LIGHTNESS:
default:
gegl_node_set (node,
"linear", FALSE,
NULL);
break;
}
}
void
gimp_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
gimp_gegl_node_set_matrix (GeglNode *node,
const GimpMatrix3 *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
gimp_gegl_node_set_color (GeglNode *node,
const GimpRGB *color)
{
GeglColor *gegl_color;
g_return_if_fail (GEGL_IS_NODE (node));
g_return_if_fail (color != NULL);
gegl_color = gimp_gegl_color_new (color);
gegl_node_set (node,
"value", gegl_color,
NULL);
g_object_unref (gegl_color);
}