773 lines
26 KiB
C
773 lines
26 KiB
C
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/* 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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* 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 <gio/gio.h>
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#include <gegl.h>
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#include "libpikabase/pikabase.h"
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#include "pika-gegl-types.h"
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#include "core/pikachunkiterator.h"
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#include "pika-gegl-loops.h"
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#include "pika-gegl-utils.h"
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#include "pikatilehandlervalidate.h"
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enum
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{
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INVALIDATED,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_FORMAT,
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PROP_TILE_WIDTH,
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PROP_TILE_HEIGHT,
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PROP_WHOLE_TILE
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};
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static void pika_tile_handler_validate_finalize (GObject *object);
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static void pika_tile_handler_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 void pika_tile_handler_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_tile_handler_validate_real_begin_validate (PikaTileHandlerValidate *validate);
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static void pika_tile_handler_validate_real_end_validate (PikaTileHandlerValidate *validate);
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static void pika_tile_handler_validate_real_validate (PikaTileHandlerValidate *validate,
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const GeglRectangle *rect,
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const Babl *format,
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gpointer dest_buf,
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gint dest_stride);
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static void pika_tile_handler_validate_real_validate_buffer (PikaTileHandlerValidate *validate,
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const GeglRectangle *rect,
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GeglBuffer *buffer);
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static gpointer pika_tile_handler_validate_command (GeglTileSource *source,
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GeglTileCommand command,
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gint x,
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gint y,
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gint z,
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gpointer data);
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G_DEFINE_TYPE (PikaTileHandlerValidate, pika_tile_handler_validate,
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GEGL_TYPE_TILE_HANDLER)
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#define parent_class pika_tile_handler_validate_parent_class
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static guint pika_tile_handler_validate_signals[LAST_SIGNAL];
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static void
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pika_tile_handler_validate_class_init (PikaTileHandlerValidateClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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pika_tile_handler_validate_signals[INVALIDATED] =
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g_signal_new ("invalidated",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaTileHandlerValidateClass, invalidated),
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NULL, NULL,
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g_cclosure_marshal_VOID__BOXED,
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G_TYPE_NONE, 1,
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GEGL_TYPE_RECTANGLE);
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object_class->finalize = pika_tile_handler_validate_finalize;
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object_class->set_property = pika_tile_handler_validate_set_property;
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object_class->get_property = pika_tile_handler_validate_get_property;
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klass->begin_validate = pika_tile_handler_validate_real_begin_validate;
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klass->end_validate = pika_tile_handler_validate_real_end_validate;
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klass->validate = pika_tile_handler_validate_real_validate;
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klass->validate_buffer = pika_tile_handler_validate_real_validate_buffer;
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g_object_class_install_property (object_class, PROP_FORMAT,
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g_param_spec_pointer ("format", NULL, NULL,
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PIKA_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_TILE_WIDTH,
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g_param_spec_int ("tile-width", NULL, NULL,
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1, G_MAXINT, 1,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_TILE_HEIGHT,
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g_param_spec_int ("tile-height", NULL, NULL,
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1, G_MAXINT, 1,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_WHOLE_TILE,
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g_param_spec_boolean ("whole-tile", NULL, NULL,
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FALSE,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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}
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static void
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pika_tile_handler_validate_init (PikaTileHandlerValidate *validate)
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{
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GeglTileSource *source = GEGL_TILE_SOURCE (validate);
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source->command = pika_tile_handler_validate_command;
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validate->dirty_region = cairo_region_create ();
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}
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static void
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pika_tile_handler_validate_finalize (GObject *object)
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{
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PikaTileHandlerValidate *validate = PIKA_TILE_HANDLER_VALIDATE (object);
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g_clear_object (&validate->graph);
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g_clear_pointer (&validate->dirty_region, cairo_region_destroy);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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pika_tile_handler_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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PikaTileHandlerValidate *validate = PIKA_TILE_HANDLER_VALIDATE (object);
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switch (property_id)
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{
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case PROP_FORMAT:
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validate->format = g_value_get_pointer (value);
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break;
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case PROP_TILE_WIDTH:
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validate->tile_width = g_value_get_int (value);
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break;
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case PROP_TILE_HEIGHT:
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validate->tile_height = g_value_get_int (value);
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break;
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case PROP_WHOLE_TILE:
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validate->whole_tile = g_value_get_boolean (value);
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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_tile_handler_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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PikaTileHandlerValidate *validate = PIKA_TILE_HANDLER_VALIDATE (object);
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switch (property_id)
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{
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case PROP_FORMAT:
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g_value_set_pointer (value, (gpointer) validate->format);
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break;
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case PROP_TILE_WIDTH:
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g_value_set_int (value, validate->tile_width);
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break;
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case PROP_TILE_HEIGHT:
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g_value_set_int (value, validate->tile_height);
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break;
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case PROP_WHOLE_TILE:
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g_value_set_boolean (value, validate->whole_tile);
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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_tile_handler_validate_real_begin_validate (PikaTileHandlerValidate *validate)
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{
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validate->suspend_validate++;
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}
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static void
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pika_tile_handler_validate_real_end_validate (PikaTileHandlerValidate *validate)
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{
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validate->suspend_validate--;
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}
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static void
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pika_tile_handler_validate_real_validate (PikaTileHandlerValidate *validate,
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const GeglRectangle *rect,
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const Babl *format,
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gpointer dest_buf,
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gint dest_stride)
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{
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#if 0
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g_printerr ("validating at %d %d %d %d\n",
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rect.x,
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rect.y,
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rect.width,
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rect.height);
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#endif
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gegl_node_blit (validate->graph, 1.0, rect, format,
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dest_buf, dest_stride,
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GEGL_BLIT_DEFAULT);
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}
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static void
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pika_tile_handler_validate_real_validate_buffer (PikaTileHandlerValidate *validate,
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const GeglRectangle *rect,
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GeglBuffer *buffer)
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{
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PikaTileHandlerValidateClass *klass;
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klass = PIKA_TILE_HANDLER_VALIDATE_GET_CLASS (validate);
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if (klass->validate == pika_tile_handler_validate_real_validate)
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{
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gegl_node_blit_buffer (validate->graph, buffer, rect, 0,
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GEGL_ABYSS_NONE);
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}
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else
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{
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const Babl *format = gegl_buffer_get_format (buffer);
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gpointer data;
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gint stride;
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data = gegl_buffer_linear_open (buffer, rect, &stride, format);
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klass->validate (validate, rect, format, data, stride);
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gegl_buffer_linear_close (buffer, data);
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}
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}
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static GeglTile *
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pika_tile_handler_validate_validate_tile (GeglTileSource *source,
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gint x,
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gint y)
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{
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PikaTileHandlerValidate *validate = PIKA_TILE_HANDLER_VALIDATE (source);
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GeglTile *tile;
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cairo_rectangle_int_t tile_rect;
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cairo_region_overlap_t overlap;
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if (validate->suspend_validate ||
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cairo_region_is_empty (validate->dirty_region))
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{
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return gegl_tile_handler_source_command (source,
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GEGL_TILE_GET, x, y, 0, NULL);
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}
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tile_rect.x = x * validate->tile_width;
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tile_rect.y = y * validate->tile_height;
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tile_rect.width = validate->tile_width;
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tile_rect.height = validate->tile_height;
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overlap = cairo_region_contains_rectangle (validate->dirty_region,
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&tile_rect);
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if (overlap == CAIRO_REGION_OVERLAP_OUT)
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{
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return gegl_tile_handler_source_command (source,
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GEGL_TILE_GET, x, y, 0, NULL);
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}
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if (overlap == CAIRO_REGION_OVERLAP_IN || validate->whole_tile)
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{
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gint tile_bpp;
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gint tile_stride;
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cairo_region_subtract_rectangle (validate->dirty_region, &tile_rect);
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tile_bpp = babl_format_get_bytes_per_pixel (validate->format);
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tile_stride = tile_bpp * validate->tile_width;
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tile = gegl_tile_handler_get_source_tile (GEGL_TILE_HANDLER (source),
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x, y, 0, FALSE);
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pika_tile_handler_validate_begin_validate (validate);
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gegl_tile_lock (tile);
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PIKA_TILE_HANDLER_VALIDATE_GET_CLASS (validate)->validate
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(validate,
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GEGL_RECTANGLE (tile_rect.x,
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tile_rect.y,
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tile_rect.width,
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tile_rect.height),
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validate->format,
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gegl_tile_get_data (tile),
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tile_stride);
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gegl_tile_unlock (tile);
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pika_tile_handler_validate_end_validate (validate);
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}
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else
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{
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cairo_region_t *tile_region;
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gint tile_bpp;
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gint tile_stride;
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gint n_rects;
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gint i;
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tile_region = cairo_region_copy (validate->dirty_region);
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cairo_region_intersect_rectangle (tile_region, &tile_rect);
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cairo_region_subtract_rectangle (validate->dirty_region, &tile_rect);
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tile_bpp = babl_format_get_bytes_per_pixel (validate->format);
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tile_stride = tile_bpp * validate->tile_width;
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tile = gegl_tile_handler_source_command (source,
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GEGL_TILE_GET, x, y, 0, NULL);
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if (! tile)
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{
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tile = gegl_tile_handler_create_tile (GEGL_TILE_HANDLER (source),
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x, y, 0);
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memset (gegl_tile_get_data (tile),
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0, tile_stride * validate->tile_height);
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}
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pika_tile_handler_validate_begin_validate (validate);
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gegl_tile_lock (tile);
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n_rects = cairo_region_num_rectangles (tile_region);
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#if 0
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g_printerr ("%d chunks\n", n_rects);
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#endif
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||
|
|
for (i = 0; i < n_rects; i++)
|
||
|
|
{
|
||
|
|
cairo_rectangle_int_t blit_rect;
|
||
|
|
gint tile_x;
|
||
|
|
gint tile_y;
|
||
|
|
|
||
|
|
cairo_region_get_rectangle (tile_region, i, &blit_rect);
|
||
|
|
|
||
|
|
tile_x = blit_rect.x % validate->tile_width;
|
||
|
|
if (tile_x < 0) tile_x += validate->tile_width;
|
||
|
|
|
||
|
|
tile_y = blit_rect.y % validate->tile_height;
|
||
|
|
if (tile_y < 0) tile_y += validate->tile_height;
|
||
|
|
|
||
|
|
PIKA_TILE_HANDLER_VALIDATE_GET_CLASS (validate)->validate
|
||
|
|
(validate,
|
||
|
|
GEGL_RECTANGLE (blit_rect.x,
|
||
|
|
blit_rect.y,
|
||
|
|
blit_rect.width,
|
||
|
|
blit_rect.height),
|
||
|
|
validate->format,
|
||
|
|
gegl_tile_get_data (tile) +
|
||
|
|
tile_y * tile_stride +
|
||
|
|
tile_x * tile_bpp,
|
||
|
|
tile_stride);
|
||
|
|
}
|
||
|
|
|
||
|
|
gegl_tile_unlock (tile);
|
||
|
|
|
||
|
|
pika_tile_handler_validate_end_validate (validate);
|
||
|
|
|
||
|
|
cairo_region_destroy (tile_region);
|
||
|
|
}
|
||
|
|
|
||
|
|
return tile;
|
||
|
|
}
|
||
|
|
|
||
|
|
static gpointer
|
||
|
|
pika_tile_handler_validate_command (GeglTileSource *source,
|
||
|
|
GeglTileCommand command,
|
||
|
|
gint x,
|
||
|
|
gint y,
|
||
|
|
gint z,
|
||
|
|
gpointer data)
|
||
|
|
{
|
||
|
|
if (command == GEGL_TILE_GET && z == 0)
|
||
|
|
return pika_tile_handler_validate_validate_tile (source, x, y);
|
||
|
|
|
||
|
|
return gegl_tile_handler_source_command (source, command, x, y, z, data);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* public functions */
|
||
|
|
|
||
|
|
GeglTileHandler *
|
||
|
|
pika_tile_handler_validate_new (GeglNode *graph)
|
||
|
|
{
|
||
|
|
PikaTileHandlerValidate *validate;
|
||
|
|
|
||
|
|
g_return_val_if_fail (GEGL_IS_NODE (graph), NULL);
|
||
|
|
|
||
|
|
validate = g_object_new (PIKA_TYPE_TILE_HANDLER_VALIDATE, NULL);
|
||
|
|
|
||
|
|
validate->graph = g_object_ref (graph);
|
||
|
|
|
||
|
|
return GEGL_TILE_HANDLER (validate);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_tile_handler_validate_assign (PikaTileHandlerValidate *validate,
|
||
|
|
GeglBuffer *buffer)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_TILE_HANDLER_VALIDATE (validate));
|
||
|
|
g_return_if_fail (GEGL_IS_BUFFER (buffer));
|
||
|
|
g_return_if_fail (pika_tile_handler_validate_get_assigned (buffer) == NULL);
|
||
|
|
|
||
|
|
gegl_buffer_add_handler (buffer, validate);
|
||
|
|
|
||
|
|
g_object_get (buffer,
|
||
|
|
"format", &validate->format,
|
||
|
|
"tile-width", &validate->tile_width,
|
||
|
|
"tile-height", &validate->tile_height,
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
g_object_set_data (G_OBJECT (buffer),
|
||
|
|
"pika-tile-handler-validate", validate);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_tile_handler_validate_unassign (PikaTileHandlerValidate *validate,
|
||
|
|
GeglBuffer *buffer)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_TILE_HANDLER_VALIDATE (validate));
|
||
|
|
g_return_if_fail (GEGL_IS_BUFFER (buffer));
|
||
|
|
g_return_if_fail (pika_tile_handler_validate_get_assigned (buffer) == validate);
|
||
|
|
|
||
|
|
g_object_set_data (G_OBJECT (buffer),
|
||
|
|
"pika-tile-handler-validate", NULL);
|
||
|
|
|
||
|
|
gegl_buffer_remove_handler (buffer, validate);
|
||
|
|
}
|
||
|
|
|
||
|
|
PikaTileHandlerValidate *
|
||
|
|
pika_tile_handler_validate_get_assigned (GeglBuffer *buffer)
|
||
|
|
{
|
||
|
|
g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
|
||
|
|
|
||
|
|
return g_object_get_data (G_OBJECT (buffer),
|
||
|
|
"pika-tile-handler-validate");
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_tile_handler_validate_invalidate (PikaTileHandlerValidate *validate,
|
||
|
|
const GeglRectangle *rect)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_TILE_HANDLER_VALIDATE (validate));
|
||
|
|
g_return_if_fail (rect != NULL);
|
||
|
|
|
||
|
|
cairo_region_union_rectangle (validate->dirty_region,
|
||
|
|
(cairo_rectangle_int_t *) rect);
|
||
|
|
|
||
|
|
gegl_tile_handler_damage_rect (GEGL_TILE_HANDLER (validate), rect);
|
||
|
|
|
||
|
|
g_signal_emit (validate, pika_tile_handler_validate_signals[INVALIDATED],
|
||
|
|
0, rect, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_tile_handler_validate_undo_invalidate (PikaTileHandlerValidate *validate,
|
||
|
|
const GeglRectangle *rect)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_TILE_HANDLER_VALIDATE (validate));
|
||
|
|
g_return_if_fail (rect != NULL);
|
||
|
|
|
||
|
|
cairo_region_subtract_rectangle (validate->dirty_region,
|
||
|
|
(cairo_rectangle_int_t *) rect);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_tile_handler_validate_begin_validate (PikaTileHandlerValidate *validate)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_TILE_HANDLER_VALIDATE (validate));
|
||
|
|
|
||
|
|
if (validate->validating++ == 0)
|
||
|
|
PIKA_TILE_HANDLER_VALIDATE_GET_CLASS (validate)->begin_validate (validate);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_tile_handler_validate_end_validate (PikaTileHandlerValidate *validate)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_TILE_HANDLER_VALIDATE (validate));
|
||
|
|
g_return_if_fail (validate->validating > 0);
|
||
|
|
|
||
|
|
if (--validate->validating == 0)
|
||
|
|
PIKA_TILE_HANDLER_VALIDATE_GET_CLASS (validate)->end_validate (validate);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_tile_handler_validate_validate (PikaTileHandlerValidate *validate,
|
||
|
|
GeglBuffer *buffer,
|
||
|
|
const GeglRectangle *rect,
|
||
|
|
gboolean intersect,
|
||
|
|
gboolean chunked)
|
||
|
|
{
|
||
|
|
PikaTileHandlerValidateClass *klass;
|
||
|
|
cairo_region_t *region = NULL;
|
||
|
|
|
||
|
|
g_return_if_fail (PIKA_IS_TILE_HANDLER_VALIDATE (validate));
|
||
|
|
g_return_if_fail (pika_tile_handler_validate_get_assigned (buffer) ==
|
||
|
|
validate);
|
||
|
|
|
||
|
|
klass = PIKA_TILE_HANDLER_VALIDATE_GET_CLASS (validate);
|
||
|
|
|
||
|
|
if (! rect)
|
||
|
|
rect = gegl_buffer_get_extent (buffer);
|
||
|
|
|
||
|
|
if (intersect)
|
||
|
|
{
|
||
|
|
region = cairo_region_copy (validate->dirty_region);
|
||
|
|
|
||
|
|
cairo_region_intersect_rectangle (region,
|
||
|
|
(const cairo_rectangle_int_t *) rect);
|
||
|
|
}
|
||
|
|
else if (chunked)
|
||
|
|
{
|
||
|
|
region = cairo_region_create_rectangle (
|
||
|
|
(const cairo_rectangle_int_t *) rect);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (region)
|
||
|
|
{
|
||
|
|
if (! cairo_region_is_empty (region))
|
||
|
|
{
|
||
|
|
pika_tile_handler_validate_begin_validate (validate);
|
||
|
|
|
||
|
|
if (chunked)
|
||
|
|
{
|
||
|
|
PikaChunkIterator *iter;
|
||
|
|
|
||
|
|
iter = pika_chunk_iterator_new (region);
|
||
|
|
region = NULL;
|
||
|
|
|
||
|
|
while (pika_chunk_iterator_next (iter))
|
||
|
|
{
|
||
|
|
GeglRectangle blit_rect;
|
||
|
|
|
||
|
|
while (pika_chunk_iterator_get_rect (iter, &blit_rect))
|
||
|
|
klass->validate_buffer (validate, &blit_rect, buffer);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
gint n_rects;
|
||
|
|
gint i;
|
||
|
|
|
||
|
|
n_rects = cairo_region_num_rectangles (region);
|
||
|
|
|
||
|
|
for (i = 0; i < n_rects; i++)
|
||
|
|
{
|
||
|
|
cairo_rectangle_int_t blit_rect;
|
||
|
|
|
||
|
|
cairo_region_get_rectangle (region, i, &blit_rect);
|
||
|
|
|
||
|
|
klass->validate_buffer (validate,
|
||
|
|
(const GeglRectangle *) &blit_rect,
|
||
|
|
buffer);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pika_tile_handler_validate_end_validate (validate);
|
||
|
|
|
||
|
|
cairo_region_subtract_rectangle (
|
||
|
|
validate->dirty_region,
|
||
|
|
(const cairo_rectangle_int_t *) rect);
|
||
|
|
}
|
||
|
|
|
||
|
|
g_clear_pointer (®ion, cairo_region_destroy);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pika_tile_handler_validate_begin_validate (validate);
|
||
|
|
|
||
|
|
klass->validate_buffer (validate, rect, buffer);
|
||
|
|
|
||
|
|
pika_tile_handler_validate_end_validate (validate);
|
||
|
|
|
||
|
|
cairo_region_subtract_rectangle (
|
||
|
|
validate->dirty_region,
|
||
|
|
(const cairo_rectangle_int_t *) rect);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
gboolean
|
||
|
|
pika_tile_handler_validate_buffer_set_extent (GeglBuffer *buffer,
|
||
|
|
const GeglRectangle *extent)
|
||
|
|
{
|
||
|
|
PikaTileHandlerValidate *validate;
|
||
|
|
|
||
|
|
g_return_val_if_fail (GEGL_IS_BUFFER (buffer), FALSE);
|
||
|
|
g_return_val_if_fail (extent != NULL, FALSE);
|
||
|
|
|
||
|
|
validate = pika_tile_handler_validate_get_assigned (buffer);
|
||
|
|
|
||
|
|
g_return_val_if_fail (validate != NULL, FALSE);
|
||
|
|
|
||
|
|
validate->suspend_validate++;
|
||
|
|
|
||
|
|
if (pika_gegl_buffer_set_extent (buffer, extent))
|
||
|
|
{
|
||
|
|
validate->suspend_validate--;
|
||
|
|
|
||
|
|
cairo_region_intersect_rectangle (validate->dirty_region,
|
||
|
|
(const cairo_rectangle_int_t *) extent);
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
validate->suspend_validate--;
|
||
|
|
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_tile_handler_validate_buffer_copy (GeglBuffer *src_buffer,
|
||
|
|
const GeglRectangle *src_rect,
|
||
|
|
GeglBuffer *dst_buffer,
|
||
|
|
const GeglRectangle *dst_rect)
|
||
|
|
{
|
||
|
|
PikaTileHandlerValidate *src_validate;
|
||
|
|
PikaTileHandlerValidate *dst_validate;
|
||
|
|
GeglRectangle real_src_rect;
|
||
|
|
GeglRectangle real_dst_rect;
|
||
|
|
|
||
|
|
g_return_if_fail (GEGL_IS_BUFFER (src_buffer));
|
||
|
|
g_return_if_fail (GEGL_IS_BUFFER (dst_buffer));
|
||
|
|
g_return_if_fail (src_rect != dst_rect);
|
||
|
|
|
||
|
|
src_validate = pika_tile_handler_validate_get_assigned (src_buffer);
|
||
|
|
dst_validate = pika_tile_handler_validate_get_assigned (dst_buffer);
|
||
|
|
|
||
|
|
g_return_if_fail (dst_validate != NULL);
|
||
|
|
|
||
|
|
if (! src_rect)
|
||
|
|
src_rect = gegl_buffer_get_extent (src_buffer);
|
||
|
|
|
||
|
|
if (! dst_rect)
|
||
|
|
dst_rect = src_rect;
|
||
|
|
|
||
|
|
real_src_rect = *src_rect;
|
||
|
|
|
||
|
|
gegl_rectangle_intersect (&real_dst_rect,
|
||
|
|
dst_rect, gegl_buffer_get_extent (dst_buffer));
|
||
|
|
|
||
|
|
real_src_rect.x += real_dst_rect.x - dst_rect->x;
|
||
|
|
real_src_rect.y += real_dst_rect.y - dst_rect->y;
|
||
|
|
real_src_rect.width -= real_dst_rect.x - dst_rect->x;
|
||
|
|
real_src_rect.height -= real_dst_rect.y - dst_rect->y;
|
||
|
|
|
||
|
|
real_src_rect.width = CLAMP (real_src_rect.width, 0, real_dst_rect.width);
|
||
|
|
real_src_rect.height = CLAMP (real_src_rect.height, 0, real_dst_rect.height);
|
||
|
|
|
||
|
|
/* temporarily remove the source buffer's validate handler, so that
|
||
|
|
* gegl_buffer_copy() can use fast tile copying, using the TILE_COPY command.
|
||
|
|
* currently, gegl only uses TILE_COPY when the source buffer has no user-
|
||
|
|
* provided tile handlers.
|
||
|
|
*/
|
||
|
|
if (src_validate)
|
||
|
|
{
|
||
|
|
g_object_ref (src_validate);
|
||
|
|
|
||
|
|
pika_tile_handler_validate_unassign (src_validate, src_buffer);
|
||
|
|
}
|
||
|
|
|
||
|
|
dst_validate->suspend_validate++;
|
||
|
|
|
||
|
|
pika_gegl_buffer_copy (src_buffer, &real_src_rect, GEGL_ABYSS_NONE,
|
||
|
|
dst_buffer, &real_dst_rect);
|
||
|
|
|
||
|
|
dst_validate->suspend_validate--;
|
||
|
|
|
||
|
|
if (src_validate)
|
||
|
|
{
|
||
|
|
pika_tile_handler_validate_assign (src_validate, src_buffer);
|
||
|
|
|
||
|
|
g_object_unref (src_validate);
|
||
|
|
}
|
||
|
|
|
||
|
|
cairo_region_subtract_rectangle (dst_validate->dirty_region,
|
||
|
|
(cairo_rectangle_int_t *) &real_dst_rect);
|
||
|
|
|
||
|
|
if (src_validate)
|
||
|
|
{
|
||
|
|
if (real_src_rect.x == real_dst_rect.x &&
|
||
|
|
real_src_rect.y == real_dst_rect.y &&
|
||
|
|
gegl_rectangle_equal (&real_src_rect,
|
||
|
|
gegl_buffer_get_extent (src_buffer)))
|
||
|
|
{
|
||
|
|
cairo_region_union (dst_validate->dirty_region,
|
||
|
|
src_validate->dirty_region);
|
||
|
|
}
|
||
|
|
else if (cairo_region_contains_rectangle (
|
||
|
|
src_validate->dirty_region,
|
||
|
|
(cairo_rectangle_int_t *) &real_src_rect) !=
|
||
|
|
CAIRO_REGION_OVERLAP_OUT)
|
||
|
|
{
|
||
|
|
cairo_region_t *region;
|
||
|
|
|
||
|
|
region = cairo_region_copy (src_validate->dirty_region);
|
||
|
|
|
||
|
|
if (! gegl_rectangle_equal (&real_src_rect,
|
||
|
|
gegl_buffer_get_extent (src_buffer)))
|
||
|
|
{
|
||
|
|
cairo_region_intersect_rectangle (
|
||
|
|
region, (cairo_rectangle_int_t *) &real_src_rect);
|
||
|
|
}
|
||
|
|
|
||
|
|
cairo_region_translate (region,
|
||
|
|
real_dst_rect.x - real_src_rect.x,
|
||
|
|
real_dst_rect.y - real_src_rect.y);
|
||
|
|
|
||
|
|
if (cairo_region_is_empty (dst_validate->dirty_region))
|
||
|
|
{
|
||
|
|
cairo_region_destroy (dst_validate->dirty_region);
|
||
|
|
|
||
|
|
dst_validate->dirty_region = region;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
cairo_region_union (dst_validate->dirty_region, region);
|
||
|
|
|
||
|
|
cairo_region_destroy (region);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
