mirror of https://github.com/GNOME/gimp.git
216 lines
7.2 KiB
C
216 lines
7.2 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimp-gegl-nodes.h
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* Copyright (C) 2012 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include "gimp-gegl-types.h"
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#include "gimp-gegl-nodes.h"
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#include "gimp-gegl-utils.h"
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GeglNode *
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gimp_gegl_create_flatten_node (const GimpRGB *background)
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{
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GeglNode *node;
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GeglNode *input;
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GeglNode *output;
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GeglNode *color;
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GeglNode *over;
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GeglColor *c;
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g_return_val_if_fail (background != NULL, NULL);
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node = gegl_node_new ();
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input = gegl_node_get_input_proxy (node, "input");
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output = gegl_node_get_output_proxy (node, "output");
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c = gimp_gegl_color_new (background);
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color = gegl_node_new_child (node,
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"operation", "gegl:color",
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"value", c,
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NULL);
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g_object_unref (c);
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over = gegl_node_new_child (node,
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"operation", "gegl:over",
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NULL);
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gegl_node_connect_to (input, "output",
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over, "aux");
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gegl_node_connect_to (color, "output",
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over, "input");
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gegl_node_connect_to (over, "output",
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output, "input");
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return node;
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}
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GeglNode *
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gimp_gegl_create_apply_opacity_node (GeglBuffer *mask,
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gint mask_offset_x,
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gint mask_offset_y,
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gdouble opacity)
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{
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GeglNode *node;
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GeglNode *input;
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GeglNode *output;
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GeglNode *opacity_node;
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GeglNode *mask_source;
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g_return_val_if_fail (GEGL_IS_BUFFER (mask), NULL);
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node = gegl_node_new ();
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input = gegl_node_get_input_proxy (node, "input");
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output = gegl_node_get_output_proxy (node, "output");
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opacity_node = gegl_node_new_child (node,
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"operation", "gegl:opacity",
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"value", opacity,
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NULL);
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mask_source = gimp_gegl_add_buffer_source (node, mask,
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mask_offset_x,
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mask_offset_y);
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gegl_node_connect_to (input, "output",
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opacity_node, "input");
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gegl_node_connect_to (mask_source, "output",
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opacity_node, "aux");
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gegl_node_connect_to (opacity_node, "output",
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output, "input");
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return node;
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}
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GeglNode *
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gimp_gegl_add_buffer_source (GeglNode *parent,
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GeglBuffer *buffer,
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gint offset_x,
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gint offset_y)
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{
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GeglNode *buffer_source;
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g_return_val_if_fail (GEGL_IS_NODE (parent), NULL);
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g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
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buffer_source = gegl_node_new_child (parent,
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"operation", "gegl:buffer-source",
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"buffer", buffer,
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NULL);
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if (offset_x != 0 || offset_y != 0)
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{
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GeglNode *translate =
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gegl_node_new_child (parent,
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"operation", "gegl:translate",
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"x", (gdouble) offset_x,
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"y", (gdouble) offset_y,
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NULL);
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gegl_node_connect_to (buffer_source, "output",
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translate, "input");
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buffer_source = translate;
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}
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return buffer_source;
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}
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void
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gimp_gegl_mode_node_set_mode (GeglNode *node,
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GimpLayerModeEffects mode,
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gboolean linear)
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{
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const gchar *operation = "gimp:normal-mode";
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g_return_if_fail (GEGL_IS_NODE (node));
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switch (mode)
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{
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case GIMP_NORMAL_MODE: operation = "gimp:normal-mode"; break;
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case GIMP_DISSOLVE_MODE: operation = "gimp:dissolve-mode"; break;
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case GIMP_BEHIND_MODE: operation = "gimp:behind-mode"; break;
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case GIMP_MULTIPLY_MODE: operation = "gimp:multiply-mode"; break;
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case GIMP_SCREEN_MODE: operation = "gimp:screen-mode"; break;
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case GIMP_OVERLAY_MODE: operation = "gimp:overlay-mode"; break;
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case GIMP_DIFFERENCE_MODE: operation = "gimp:difference-mode"; break;
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case GIMP_ADDITION_MODE: operation = "gimp:addition-mode"; break;
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case GIMP_SUBTRACT_MODE: operation = "gimp:subtract-mode"; break;
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case GIMP_DARKEN_ONLY_MODE: operation = "gimp:darken-only-mode"; break;
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case GIMP_LIGHTEN_ONLY_MODE: operation = "gimp:lighten-only-mode"; break;
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case GIMP_HUE_MODE: operation = "gimp:hue-mode"; break;
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case GIMP_SATURATION_MODE: operation = "gimp:saturation-mode"; break;
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case GIMP_COLOR_MODE: operation = "gimp:color-mode"; break;
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case GIMP_VALUE_MODE: operation = "gimp:value-mode"; break;
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case GIMP_DIVIDE_MODE: operation = "gimp:divide-mode"; break;
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case GIMP_DODGE_MODE: operation = "gimp:dodge-mode"; break;
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case GIMP_BURN_MODE: operation = "gimp:burn-mode"; break;
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case GIMP_HARDLIGHT_MODE: operation = "gimp:hardlight-mode"; break;
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case GIMP_SOFTLIGHT_MODE: operation = "gimp:softlight-mode"; break;
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case GIMP_GRAIN_EXTRACT_MODE: operation = "gimp:grain-extract-mode"; break;
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case GIMP_GRAIN_MERGE_MODE: operation = "gimp:grain-merge-mode"; break;
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case GIMP_COLOR_ERASE_MODE: operation = "gimp:color-erase-mode"; break;
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case GIMP_ERASE_MODE: operation = "gimp:erase-mode"; break;
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case GIMP_REPLACE_MODE: operation = "gimp:replace-mode"; break;
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case GIMP_ANTI_ERASE_MODE: operation = "gimp:anti-erase-mode"; break;
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default:
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break;
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}
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gegl_node_set (node,
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"operation", operation,
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"linear", linear,
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NULL);
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}
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void
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gimp_gegl_mode_node_set_opacity (GeglNode *node,
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gdouble opacity)
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{
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g_return_if_fail (GEGL_IS_NODE (node));
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gegl_node_set (node,
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"opacity", opacity,
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NULL);
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}
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void
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gimp_gegl_node_set_matrix (GeglNode *node,
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const GimpMatrix3 *matrix)
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{
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gchar *matrix_string;
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g_return_if_fail (GEGL_IS_NODE (node));
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g_return_if_fail (matrix != NULL);
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matrix_string = gegl_matrix3_to_string ((GeglMatrix3 *) matrix);
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gegl_node_set (node,
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"transform", matrix_string,
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NULL);
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g_free (matrix_string);
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}
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