737 lines
21 KiB
C
737 lines
21 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pika-gegl-utils.h
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* Copyright (C) 2007 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 <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <cairo.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include <gegl-plugin.h>
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#include "libpikacolor/pikacolor.h"
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#include "pika-gegl-types.h"
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#include "core/pikapattern.h"
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#include "core/pikaprogress.h"
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#include "pika-babl.h"
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#include "pika-gegl-loops.h"
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#include "pika-gegl-utils.h"
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/* local function prototypes */
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static gboolean pika_gegl_op_blacklisted (const gchar *name,
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const gchar *categories);
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static GList * pika_gegl_get_op_subclasses (GType type,
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GList *classes);
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static gint pika_gegl_compare_op_names (GeglOperationClass *a,
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GeglOperationClass *b);
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/* public functions */
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GList *
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pika_gegl_get_op_classes (void)
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{
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GList *operations;
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operations = pika_gegl_get_op_subclasses (GEGL_TYPE_OPERATION, NULL);
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operations = g_list_sort (operations,
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(GCompareFunc)
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pika_gegl_compare_op_names);
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return operations;
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}
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GType
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pika_gegl_get_op_enum_type (const gchar *operation,
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const gchar *property)
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{
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GeglNode *node;
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GObject *op;
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GParamSpec *pspec;
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g_return_val_if_fail (operation != NULL, G_TYPE_NONE);
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g_return_val_if_fail (property != NULL, G_TYPE_NONE);
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node = g_object_new (GEGL_TYPE_NODE,
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"operation", operation,
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NULL);
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g_object_get (node, "gegl-operation", &op, NULL);
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g_object_unref (node);
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g_return_val_if_fail (op != NULL, G_TYPE_NONE);
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pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (op), property);
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g_return_val_if_fail (G_IS_PARAM_SPEC_ENUM (pspec), G_TYPE_NONE);
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g_object_unref (op);
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return G_TYPE_FROM_CLASS (G_PARAM_SPEC_ENUM (pspec)->enum_class);
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}
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GeglColor *
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pika_gegl_color_new (const PikaRGB *rgb,
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const Babl *space)
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{
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GeglColor *color;
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g_return_val_if_fail (rgb != NULL, NULL);
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color = gegl_color_new (NULL);
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gegl_color_set_pixel (color,
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babl_format_with_space ("R'G'B'A double", space),
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rgb);
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return color;
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}
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static void
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pika_gegl_progress_callback (GObject *object,
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gdouble value,
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PikaProgress *progress)
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{
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if (value == 0.0)
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{
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const gchar *text = g_object_get_data (object, "pika-progress-text");
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if (pika_progress_is_active (progress))
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pika_progress_set_text (progress, "%s", text);
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else
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pika_progress_start (progress, FALSE, "%s", text);
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}
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else
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{
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pika_progress_set_value (progress, value);
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if (value == 1.0)
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pika_progress_end (progress);
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}
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}
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void
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pika_gegl_progress_connect (GeglNode *node,
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PikaProgress *progress,
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const gchar *text)
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{
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g_return_if_fail (GEGL_IS_NODE (node));
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g_return_if_fail (PIKA_IS_PROGRESS (progress));
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g_return_if_fail (text != NULL);
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g_signal_connect (node, "progress",
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G_CALLBACK (pika_gegl_progress_callback),
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progress);
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g_object_set_data_full (G_OBJECT (node),
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"pika-progress-text", g_strdup (text),
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(GDestroyNotify) g_free);
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}
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gboolean
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pika_gegl_node_is_source_operation (GeglNode *node)
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{
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GeglOperation *operation;
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g_return_val_if_fail (GEGL_IS_NODE (node), FALSE);
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operation = gegl_node_get_gegl_operation (node);
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if (! operation)
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return FALSE;
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return GEGL_IS_OPERATION_SOURCE (operation);
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}
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gboolean
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pika_gegl_node_is_point_operation (GeglNode *node)
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{
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GeglOperation *operation;
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g_return_val_if_fail (GEGL_IS_NODE (node), FALSE);
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operation = gegl_node_get_gegl_operation (node);
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if (! operation)
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return FALSE;
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return GEGL_IS_OPERATION_POINT_RENDER (operation) ||
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GEGL_IS_OPERATION_POINT_FILTER (operation) ||
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GEGL_IS_OPERATION_POINT_COMPOSER (operation) ||
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GEGL_IS_OPERATION_POINT_COMPOSER3 (operation);
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}
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gboolean
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pika_gegl_node_is_area_filter_operation (GeglNode *node)
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{
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GeglOperation *operation;
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g_return_val_if_fail (GEGL_IS_NODE (node), FALSE);
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operation = gegl_node_get_gegl_operation (node);
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if (! operation)
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return FALSE;
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return GEGL_IS_OPERATION_AREA_FILTER (operation) ||
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/* be conservative and return TRUE for meta ops, since they may
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* involve an area op
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*/
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GEGL_IS_OPERATION_META (operation);
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}
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const gchar *
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pika_gegl_node_get_key (GeglNode *node,
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const gchar *key)
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{
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const gchar *operation_name;
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g_return_val_if_fail (GEGL_IS_NODE (node), NULL);
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operation_name = gegl_node_get_operation (node);
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if (operation_name)
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return gegl_operation_get_key (operation_name, key);
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else
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return NULL;
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}
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gboolean
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pika_gegl_node_has_key (GeglNode *node,
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const gchar *key)
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{
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return pika_gegl_node_get_key (node, key) != NULL;
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}
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const Babl *
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pika_gegl_node_get_format (GeglNode *node,
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const gchar *pad_name)
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{
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GeglOperation *op;
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const Babl *format = NULL;
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g_return_val_if_fail (GEGL_IS_NODE (node), NULL);
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g_return_val_if_fail (pad_name != NULL, NULL);
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g_object_get (node, "gegl-operation", &op, NULL);
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if (op)
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{
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format = gegl_operation_get_format (op, pad_name);
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g_object_unref (op);
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}
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if (! format)
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format = babl_format ("RGBA float");
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return format;
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}
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void
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pika_gegl_node_set_underlying_operation (GeglNode *node,
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GeglNode *operation)
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{
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g_return_if_fail (GEGL_IS_NODE (node));
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g_return_if_fail (operation == NULL || GEGL_IS_NODE (operation));
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g_object_set_data (G_OBJECT (node),
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"pika-gegl-node-underlying-operation", operation);
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}
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GeglNode *
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pika_gegl_node_get_underlying_operation (GeglNode *node)
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{
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GeglNode *operation;
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g_return_val_if_fail (GEGL_IS_NODE (node), NULL);
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operation = g_object_get_data (G_OBJECT (node),
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"pika-gegl-node-underlying-operation");
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if (operation)
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return pika_gegl_node_get_underlying_operation (operation);
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else
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return node;
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}
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gboolean
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pika_gegl_param_spec_has_key (GParamSpec *pspec,
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const gchar *key,
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const gchar *value)
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{
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const gchar *v = gegl_param_spec_get_property_key (pspec, key);
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if (v && ! strcmp (v, value))
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return TRUE;
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return FALSE;
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}
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GeglBuffer *
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pika_gegl_buffer_dup (GeglBuffer *buffer)
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{
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GeglBuffer *new_buffer;
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const GeglRectangle *extent;
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const GeglRectangle *abyss;
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GeglRectangle rect;
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gint shift_x;
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gint shift_y;
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gint tile_width;
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gint tile_height;
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g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
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extent = gegl_buffer_get_extent (buffer);
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abyss = gegl_buffer_get_abyss (buffer);
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g_object_get (buffer,
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"shift-x", &shift_x,
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"shift-y", &shift_y,
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"tile-width", &tile_width,
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"tile-height", &tile_height,
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NULL);
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new_buffer = g_object_new (GEGL_TYPE_BUFFER,
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"format", gegl_buffer_get_format (buffer),
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"x", extent->x,
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"y", extent->y,
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"width", extent->width,
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"height", extent->height,
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"abyss-x", abyss->x,
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"abyss-y", abyss->y,
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"abyss-width", abyss->width,
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"abyss-height", abyss->height,
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"shift-x", shift_x,
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"shift-y", shift_y,
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"tile-width", tile_width,
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"tile-height", tile_height,
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NULL);
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gegl_rectangle_align_to_buffer (&rect, extent, buffer,
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GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
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pika_gegl_buffer_copy (buffer, &rect, GEGL_ABYSS_NONE,
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new_buffer, &rect);
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return new_buffer;
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}
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GeglBuffer *
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pika_gegl_buffer_resize (GeglBuffer *buffer,
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gint new_width,
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gint new_height,
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gint offset_x,
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gint offset_y,
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PikaRGB *color,
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PikaPattern *pattern,
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gint pattern_offset_x,
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gint pattern_offset_y)
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{
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GeglBuffer *new_buffer;
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gboolean intersect;
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GeglRectangle copy_rect;
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const GeglRectangle *extent;
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const Babl *format;
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g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
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extent = gegl_buffer_get_extent (buffer);
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format = gegl_buffer_get_format (buffer);
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new_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, new_width, new_height),
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format);
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intersect = gegl_rectangle_intersect (©_rect,
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GEGL_RECTANGLE (0, 0, extent->width,
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extent->height),
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GEGL_RECTANGLE (offset_x, offset_y,
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new_width, new_height));
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if (! intersect ||
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copy_rect.width != new_width ||
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copy_rect.height != new_height)
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{
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/* Clear the new buffer if needed and color/pattern is given */
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if (pattern)
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{
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GeglBuffer *src_buffer;
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GeglBuffer *dest_buffer;
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PikaColorProfile *src_profile;
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PikaColorProfile *dest_profile;
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src_buffer = pika_pattern_create_buffer (pattern);
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src_profile = pika_babl_format_get_color_profile (
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gegl_buffer_get_format (src_buffer));
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dest_profile = pika_babl_format_get_color_profile (
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gegl_buffer_get_format (new_buffer));
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if (pika_color_transform_can_gegl_copy (src_profile, dest_profile))
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{
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dest_buffer = g_object_ref (src_buffer);
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}
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else
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{
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dest_buffer = gegl_buffer_new (gegl_buffer_get_extent (src_buffer),
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gegl_buffer_get_format (new_buffer));
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pika_gegl_convert_color_profile (src_buffer, NULL, src_profile,
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dest_buffer, NULL, dest_profile,
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PIKA_COLOR_RENDERING_INTENT_PERCEPTUAL,
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TRUE, NULL);
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}
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g_object_unref (src_profile);
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g_object_unref (dest_profile);
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gegl_buffer_set_pattern (new_buffer, NULL, dest_buffer,
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pattern_offset_x, pattern_offset_y);
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g_object_unref (src_buffer);
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g_object_unref (dest_buffer);
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}
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else if (color)
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{
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GeglColor *gegl_color;
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gegl_color = pika_gegl_color_new (color, gegl_buffer_get_format (buffer));
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gegl_buffer_set_color (new_buffer, NULL, gegl_color);
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g_object_unref (gegl_color);
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}
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}
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if (intersect && copy_rect.width && copy_rect.height)
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{
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/* Copy the pixels in the intersection */
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pika_gegl_buffer_copy (buffer, ©_rect, GEGL_ABYSS_NONE, new_buffer,
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GEGL_RECTANGLE (copy_rect.x - offset_x,
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copy_rect.y - offset_y, 0, 0));
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}
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return new_buffer;
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}
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gboolean
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pika_gegl_buffer_set_extent (GeglBuffer *buffer,
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const GeglRectangle *extent)
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{
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GeglRectangle aligned_old_extent;
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GeglRectangle aligned_extent;
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GeglRectangle old_extent_rem;
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GeglRectangle diff_rects[4];
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gint n_diff_rects;
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gint i;
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g_return_val_if_fail (GEGL_IS_BUFFER (buffer), FALSE);
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g_return_val_if_fail (extent != NULL, FALSE);
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gegl_rectangle_align_to_buffer (&aligned_old_extent,
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gegl_buffer_get_extent (buffer), buffer,
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GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
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gegl_rectangle_align_to_buffer (&aligned_extent,
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extent, buffer,
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GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
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n_diff_rects = gegl_rectangle_subtract (diff_rects,
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&aligned_old_extent,
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&aligned_extent);
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for (i = 0; i < n_diff_rects; i++)
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gegl_buffer_clear (buffer, &diff_rects[i]);
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if (gegl_rectangle_intersect (&old_extent_rem,
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gegl_buffer_get_extent (buffer),
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&aligned_extent))
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{
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n_diff_rects = gegl_rectangle_subtract (diff_rects,
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&old_extent_rem,
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extent);
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for (i = 0; i < n_diff_rects; i++)
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gegl_buffer_clear (buffer, &diff_rects[i]);
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}
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return gegl_buffer_set_extent (buffer, extent);
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}
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/* private functions */
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static gboolean
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pika_gegl_op_blacklisted (const gchar *name,
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const gchar *categories_str)
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{
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static const gchar * const category_blacklist[] =
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{
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"compositors",
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"core",
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"debug",
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"display",
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"hidden",
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"input",
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"output",
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"programming",
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"transform",
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"video"
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};
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static const gchar * const name_blacklist[] =
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{
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/* these ops are already added to the menus via filters-actions */
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"gegl:alien-map",
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"gegl:antialias",
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"gegl:apply-lens",
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"gegl:bayer-matrix",
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"gegl:bloom",
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"gegl:bump-map",
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"gegl:c2g",
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"gegl:cartoon",
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"gegl:cell-noise",
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"gegl:channel-mixer",
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"gegl:checkerboard",
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"gegl:color",
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"gegl:color-enhance",
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"gegl:color-exchange",
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"gegl:color-rotate",
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"gegl:color-temperature",
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"gegl:color-to-alpha",
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"gegl:component-extract",
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"gegl:convolution-matrix",
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"gegl:cubism",
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"gegl:deinterlace",
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"gegl:difference-of-gaussians",
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"gegl:diffraction-patterns",
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"gegl:displace",
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"gegl:distance-transform",
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"gegl:dither",
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"gegl:dropshadow",
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"gegl:edge",
|
|
"gegl:edge-laplace",
|
|
"gegl:edge-neon",
|
|
"gegl:edge-sobel",
|
|
"gegl:emboss",
|
|
"gegl:engrave",
|
|
"gegl:exposure",
|
|
"gegl:fattal02",
|
|
"gegl:focus-blur",
|
|
"gegl:fractal-trace",
|
|
"gegl:gaussian-blur",
|
|
"gegl:gaussian-blur-selective",
|
|
"gegl:gegl",
|
|
"gegl:grid",
|
|
"gegl:high-pass",
|
|
"gegl:hue-chroma",
|
|
"gegl:illusion",
|
|
"gegl:image-gradient",
|
|
"gegl:invert-linear",
|
|
"gegl:invert-gamma",
|
|
"gegl:lens-blur",
|
|
"gegl:lens-distortion",
|
|
"gegl:lens-flare",
|
|
"gegl:linear-sinusoid",
|
|
"gegl:long-shadow",
|
|
"gegl:mantiuk06",
|
|
"gegl:maze",
|
|
"gegl:mean-curvature-blur",
|
|
"gegl:median-blur",
|
|
"gegl:mirrors",
|
|
"gegl:mono-mixer",
|
|
"gegl:mosaic",
|
|
"gegl:motion-blur-circular",
|
|
"gegl:motion-blur-linear",
|
|
"gegl:motion-blur-zoom",
|
|
"gegl:newsprint",
|
|
"gegl:noise-cie-lch",
|
|
"gegl:noise-hsv",
|
|
"gegl:noise-hurl",
|
|
"gegl:noise-pick",
|
|
"gegl:noise-reduction",
|
|
"gegl:noise-rgb",
|
|
"gegl:noise-slur",
|
|
"gegl:noise-solid",
|
|
"gegl:noise-spread",
|
|
"gegl:normal-map",
|
|
"gegl:oilify",
|
|
"gegl:panorama-projection",
|
|
"gegl:perlin-noise",
|
|
"gegl:photocopy",
|
|
"gegl:pixelize",
|
|
"gegl:plasma",
|
|
"gegl:polar-coordinates",
|
|
"gegl:recursive-transform",
|
|
"gegl:red-eye-removal",
|
|
"gegl:reinhard05",
|
|
"gegl:rgb-clip",
|
|
"gegl:ripple",
|
|
"gegl:saturation",
|
|
"gegl:sepia",
|
|
"gegl:shadows-highlights",
|
|
"gegl:shift",
|
|
"gegl:simplex-noise",
|
|
"gegl:sinus",
|
|
"gegl:slic",
|
|
"gegl:snn-mean",
|
|
"gegl:softglow",
|
|
"gegl:spherize",
|
|
"gegl:spiral",
|
|
"gegl:stereographic-projection",
|
|
"gegl:stretch-contrast",
|
|
"gegl:stretch-contrast-hsv",
|
|
"gegl:stress",
|
|
"gegl:supernova",
|
|
"gegl:texturize-canvas",
|
|
"gegl:tile-glass",
|
|
"gegl:tile-paper",
|
|
"gegl:tile-seamless",
|
|
"gegl:unsharp-mask",
|
|
"gegl:value-invert",
|
|
"gegl:value-propagate",
|
|
"gegl:variable-blur",
|
|
"gegl:video-degradation",
|
|
"gegl:vignette",
|
|
"gegl:waterpixels",
|
|
"gegl:wavelet-blur",
|
|
"gegl:waves",
|
|
"gegl:whirl-pinch",
|
|
"gegl:wind",
|
|
|
|
/* these ops are blacklisted for other reasons */
|
|
"gegl:contrast-curve",
|
|
"gegl:convert-format", /* pointless */
|
|
"gegl:ditto", /* pointless */
|
|
"gegl:fill-path",
|
|
"gegl:gray", /* we use pika's op */
|
|
"gegl:hstack", /* pointless */
|
|
"gegl:introspect", /* pointless */
|
|
"gegl:layer", /* we use pika's ops */
|
|
"gegl:lcms-from-profile", /* not usable here */
|
|
"gegl:linear-gradient", /* we use the blend tool */
|
|
"gegl:map-absolute", /* pointless */
|
|
"gegl:map-relative", /* pointless */
|
|
"gegl:matting-global", /* used in the foreground select tool */
|
|
"gegl:matting-levin", /* used in the foreground select tool */
|
|
"gegl:opacity", /* poinless */
|
|
"gegl:path",
|
|
"gegl:posterize", /* we use pika's op */
|
|
"gegl:radial-gradient", /* we use the blend tool */
|
|
"gegl:rectangle", /* pointless */
|
|
"gegl:seamless-clone", /* used in the seamless clone tool */
|
|
"gegl:text", /* we use pika's text rendering */
|
|
"gegl:threshold", /* we use pika's op */
|
|
"gegl:tile", /* pointless */
|
|
"gegl:unpremul", /* pointless */
|
|
"gegl:vector-stroke",
|
|
};
|
|
|
|
gchar **categories;
|
|
gint i;
|
|
|
|
/* Operations with no name are abstract base classes */
|
|
if (! name)
|
|
return TRUE;
|
|
|
|
/* use this flag to include all ops for testing */
|
|
if (g_getenv ("PIKA_TESTING_NO_GEGL_BLACKLIST"))
|
|
return FALSE;
|
|
|
|
if (g_str_has_prefix (name, "pika"))
|
|
return TRUE;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (name_blacklist); i++)
|
|
{
|
|
if (! strcmp (name, name_blacklist[i]))
|
|
return TRUE;
|
|
}
|
|
|
|
if (! categories_str)
|
|
return FALSE;
|
|
|
|
categories = g_strsplit (categories_str, ":", 0);
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (category_blacklist); i++)
|
|
{
|
|
gint j;
|
|
|
|
for (j = 0; categories[j]; j++)
|
|
if (! strcmp (categories[j], category_blacklist[i]))
|
|
{
|
|
g_strfreev (categories);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
g_strfreev (categories);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* Builds a GList of the class structures of all subtypes of type.
|
|
*/
|
|
static GList *
|
|
pika_gegl_get_op_subclasses (GType type,
|
|
GList *classes)
|
|
{
|
|
GeglOperationClass *klass;
|
|
GType *ops;
|
|
const gchar *categories;
|
|
guint n_ops;
|
|
gint i;
|
|
|
|
if (! type)
|
|
return classes;
|
|
|
|
klass = GEGL_OPERATION_CLASS (g_type_class_ref (type));
|
|
ops = g_type_children (type, &n_ops);
|
|
|
|
categories = gegl_operation_class_get_key (klass, "categories");
|
|
|
|
if (! pika_gegl_op_blacklisted (klass->name, categories))
|
|
classes = g_list_prepend (classes, klass);
|
|
|
|
for (i = 0; i < n_ops; i++)
|
|
classes = pika_gegl_get_op_subclasses (ops[i], classes);
|
|
|
|
if (ops)
|
|
g_free (ops);
|
|
|
|
return classes;
|
|
}
|
|
|
|
static gint
|
|
pika_gegl_compare_op_names (GeglOperationClass *a,
|
|
GeglOperationClass *b)
|
|
{
|
|
const gchar *name_a = gegl_operation_class_get_key (a, "title");
|
|
const gchar *name_b = gegl_operation_class_get_key (b, "title");
|
|
|
|
if (! name_a) name_a = a->name;
|
|
if (! name_b) name_b = b->name;
|
|
|
|
return strcmp (name_a, name_b);
|
|
}
|
