312 lines
12 KiB
C
312 lines
12 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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* pikaoperationbuffersourcevalidate.c
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* Copyright (C) 2017 Ell
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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 <cairo.h>
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#include <gegl-plugin.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include "operations-types.h"
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#include "gegl/pikatilehandlervalidate.h"
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#include "pikaoperationbuffersourcevalidate.h"
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enum
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{
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PROP_0,
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PROP_BUFFER
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};
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static void pika_operation_buffer_source_validate_dispose (GObject *object);
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static void pika_operation_buffer_source_validate_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static void pika_operation_buffer_source_validate_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static GeglRectangle pika_operation_buffer_source_validate_get_bounding_box (GeglOperation *operation);
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static void pika_operation_buffer_source_validate_prepare (GeglOperation *operation);
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static gboolean pika_operation_buffer_source_validate_process (GeglOperation *operation,
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GeglOperationContext *context,
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const gchar *output_pad,
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const GeglRectangle *result,
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gint level);
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static void pika_operation_buffer_source_validate_invalidate (gpointer object,
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const GeglRectangle *rect,
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PikaOperationBufferSourceValidate *buffer_source_validate);
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G_DEFINE_TYPE (PikaOperationBufferSourceValidate, pika_operation_buffer_source_validate,
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GEGL_TYPE_OPERATION_SOURCE)
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#define parent_class pika_operation_buffer_source_validate_parent_class
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static void
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pika_operation_buffer_source_validate_class_init (PikaOperationBufferSourceValidateClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (klass);
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object_class->dispose = pika_operation_buffer_source_validate_dispose;
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object_class->set_property = pika_operation_buffer_source_validate_set_property;
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object_class->get_property = pika_operation_buffer_source_validate_get_property;
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operation_class->get_bounding_box = pika_operation_buffer_source_validate_get_bounding_box;
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operation_class->prepare = pika_operation_buffer_source_validate_prepare;
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operation_class->process = pika_operation_buffer_source_validate_process;
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operation_class->threaded = FALSE;
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operation_class->cache_policy = GEGL_CACHE_POLICY_NEVER;
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gegl_operation_class_set_keys (operation_class,
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"name", "pika:buffer-source-validate",
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"categories", "pika",
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"description", "PIKA Buffer-Source Validate operation",
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NULL);
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g_object_class_install_property (object_class, PROP_BUFFER,
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g_param_spec_object ("buffer",
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"Buffer",
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"Input buffer",
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GEGL_TYPE_BUFFER,
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G_PARAM_READWRITE));
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}
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static void
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pika_operation_buffer_source_validate_init (PikaOperationBufferSourceValidate *self)
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{
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}
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static void
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pika_operation_buffer_source_validate_dispose (GObject *object)
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{
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PikaOperationBufferSourceValidate *buffer_source_validate = PIKA_OPERATION_BUFFER_SOURCE_VALIDATE (object);
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if (buffer_source_validate->buffer)
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{
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PikaTileHandlerValidate *validate_handler;
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validate_handler = pika_tile_handler_validate_get_assigned (
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buffer_source_validate->buffer);
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if (validate_handler)
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{
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g_signal_connect (
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validate_handler,
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"invalidated",
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G_CALLBACK (pika_operation_buffer_source_validate_invalidate),
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buffer_source_validate);
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}
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g_signal_handlers_disconnect_by_func (
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buffer_source_validate->buffer,
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pika_operation_buffer_source_validate_invalidate,
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buffer_source_validate);
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g_clear_object (&buffer_source_validate->buffer);
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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pika_operation_buffer_source_validate_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaOperationBufferSourceValidate *buffer_source_validate = PIKA_OPERATION_BUFFER_SOURCE_VALIDATE (object);
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switch (property_id)
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{
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case PROP_BUFFER:
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g_value_set_object (value, buffer_source_validate->buffer);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_operation_buffer_source_validate_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaOperationBufferSourceValidate *buffer_source_validate = PIKA_OPERATION_BUFFER_SOURCE_VALIDATE (object);
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switch (property_id)
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{
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case PROP_BUFFER:
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{
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if (buffer_source_validate->buffer)
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{
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PikaTileHandlerValidate *validate_handler;
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validate_handler = pika_tile_handler_validate_get_assigned (
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buffer_source_validate->buffer);
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pika_operation_buffer_source_validate_invalidate (
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buffer_source_validate->buffer,
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gegl_buffer_get_extent (buffer_source_validate->buffer),
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buffer_source_validate);
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g_signal_handlers_disconnect_by_func (
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buffer_source_validate->buffer,
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pika_operation_buffer_source_validate_invalidate,
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buffer_source_validate);
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if (validate_handler)
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{
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g_signal_handlers_disconnect_by_func (
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validate_handler,
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pika_operation_buffer_source_validate_invalidate,
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buffer_source_validate);
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}
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g_clear_object (&buffer_source_validate->buffer);
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}
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buffer_source_validate->buffer = g_value_dup_object (value);
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if (buffer_source_validate->buffer)
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{
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PikaTileHandlerValidate *validate_handler;
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validate_handler = pika_tile_handler_validate_get_assigned (
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buffer_source_validate->buffer);
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if (validate_handler)
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{
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g_signal_connect (
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validate_handler,
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"invalidated",
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G_CALLBACK (pika_operation_buffer_source_validate_invalidate),
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buffer_source_validate);
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}
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gegl_buffer_signal_connect (
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buffer_source_validate->buffer,
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"changed",
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G_CALLBACK (pika_operation_buffer_source_validate_invalidate),
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buffer_source_validate);
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pika_operation_buffer_source_validate_invalidate (
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buffer_source_validate->buffer,
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gegl_buffer_get_extent (buffer_source_validate->buffer),
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buffer_source_validate);
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}
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}
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static GeglRectangle
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pika_operation_buffer_source_validate_get_bounding_box (GeglOperation *operation)
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{
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PikaOperationBufferSourceValidate *buffer_source_validate = PIKA_OPERATION_BUFFER_SOURCE_VALIDATE (operation);
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GeglRectangle result = {};
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if (buffer_source_validate->buffer)
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result = *gegl_buffer_get_extent (buffer_source_validate->buffer);
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return result;
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}
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static void
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pika_operation_buffer_source_validate_prepare (GeglOperation *operation)
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{
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PikaOperationBufferSourceValidate *buffer_source_validate = PIKA_OPERATION_BUFFER_SOURCE_VALIDATE (operation);
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const Babl *format = NULL;
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if (buffer_source_validate->buffer)
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format = gegl_buffer_get_format (buffer_source_validate->buffer);
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gegl_operation_set_format (operation, "output", format);
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}
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static gboolean
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pika_operation_buffer_source_validate_process (GeglOperation *operation,
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GeglOperationContext *context,
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const gchar *output_pad,
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const GeglRectangle *result,
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gint level)
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{
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PikaOperationBufferSourceValidate *buffer_source_validate = PIKA_OPERATION_BUFFER_SOURCE_VALIDATE (operation);
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GeglBuffer *buffer = buffer_source_validate->buffer;
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if (buffer)
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{
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PikaTileHandlerValidate *validate_handler;
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validate_handler = pika_tile_handler_validate_get_assigned (buffer);
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if (validate_handler)
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{
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GeglRectangle rect;
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/* align the rectangle to the tile grid */
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gegl_rectangle_align_to_buffer (
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&rect, result, buffer_source_validate->buffer,
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GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
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pika_tile_handler_validate_validate (validate_handler,
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buffer_source_validate->buffer,
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&rect,
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TRUE, FALSE);
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}
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gegl_operation_context_set_object (context, "output", G_OBJECT (buffer));
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gegl_object_set_has_forked (G_OBJECT (buffer));
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}
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return TRUE;
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}
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static void
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pika_operation_buffer_source_validate_invalidate (gpointer object,
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const GeglRectangle *rect,
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PikaOperationBufferSourceValidate *buffer_source_validate)
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{
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gegl_operation_invalidate (GEGL_OPERATION (buffer_source_validate),
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rect, FALSE);
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}
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