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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpbrushcache.c
* Copyright (C) 2011 Michael Natterer <mitch@gimp.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include "core-types.h"
#include "gimpbrushcache.h"
#include "gimp-log.h"
#include "gimp-intl.h"
#define MAX_CACHED_DATA 20
enum
{
PROP_0,
PROP_DATA_DESTROY
};
typedef struct _GimpBrushCacheUnit GimpBrushCacheUnit;
struct _GimpBrushCacheUnit
{
gpointer data;
gint width;
gint height;
gdouble scale;
gdouble aspect_ratio;
gdouble angle;
gboolean reflect;
gdouble hardness;
};
static void gimp_brush_cache_constructed (GObject *object);
static void gimp_brush_cache_finalize (GObject *object);
static void gimp_brush_cache_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_brush_cache_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
G_DEFINE_TYPE (GimpBrushCache, gimp_brush_cache, GIMP_TYPE_OBJECT)
#define parent_class gimp_brush_cache_parent_class
static void
gimp_brush_cache_class_init (GimpBrushCacheClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = gimp_brush_cache_constructed;
object_class->finalize = gimp_brush_cache_finalize;
object_class->set_property = gimp_brush_cache_set_property;
object_class->get_property = gimp_brush_cache_get_property;
g_object_class_install_property (object_class, PROP_DATA_DESTROY,
g_param_spec_pointer ("data-destroy",
NULL, NULL,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
gimp_brush_cache_init (GimpBrushCache *brush)
{
}
static void
gimp_brush_cache_constructed (GObject *object)
{
GimpBrushCache *cache = GIMP_BRUSH_CACHE (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
gimp_assert (cache->data_destroy != NULL);
}
static void
gimp_brush_cache_finalize (GObject *object)
{
GimpBrushCache *cache = GIMP_BRUSH_CACHE (object);
gimp_brush_cache_clear (cache);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_brush_cache_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpBrushCache *cache = GIMP_BRUSH_CACHE (object);
switch (property_id)
{
case PROP_DATA_DESTROY:
cache->data_destroy = g_value_get_pointer (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_brush_cache_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpBrushCache *cache = GIMP_BRUSH_CACHE (object);
switch (property_id)
{
case PROP_DATA_DESTROY:
g_value_set_pointer (value, cache->data_destroy);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
/* public functions */
GimpBrushCache *
gimp_brush_cache_new (GDestroyNotify data_destroy,
gchar debug_hit,
gchar debug_miss)
{
GimpBrushCache *cache;
g_return_val_if_fail (data_destroy != NULL, NULL);
cache = g_object_new (GIMP_TYPE_BRUSH_CACHE,
"data-destroy", data_destroy,
NULL);
cache->debug_hit = debug_hit;
cache->debug_miss = debug_miss;
return cache;
}
void
gimp_brush_cache_clear (GimpBrushCache *cache)
{
g_return_if_fail (GIMP_IS_BRUSH_CACHE (cache));
if (cache->cached_units)
{
GList *iter;
for (iter = cache->cached_units; iter; iter = g_list_next (iter))
{
GimpBrushCacheUnit *unit = iter->data;
cache->data_destroy (unit->data);
}
g_list_free_full (cache->cached_units, g_free);
cache->cached_units = NULL;
}
}
gconstpointer
gimp_brush_cache_get (GimpBrushCache *cache,
gint width,
gint height,
gdouble scale,
gdouble aspect_ratio,
gdouble angle,
gboolean reflect,
gdouble hardness)
{
GList *iter;
g_return_val_if_fail (GIMP_IS_BRUSH_CACHE (cache), NULL);
for (iter = cache->cached_units; iter; iter = g_list_next (iter))
{
GimpBrushCacheUnit *unit = iter->data;
if (unit->data &&
unit->width == width &&
unit->height == height &&
unit->scale == scale &&
unit->aspect_ratio == aspect_ratio &&
unit->angle == angle &&
unit->reflect == reflect &&
unit->hardness == hardness)
{
if (gimp_log_flags & GIMP_LOG_BRUSH_CACHE)
g_printerr ("%c", cache->debug_hit);
/* Make the returned cached brush first in the list. */
cache->cached_units = g_list_remove_link (cache->cached_units, iter);
iter->next = cache->cached_units;
if (cache->cached_units)
cache->cached_units->prev = iter;
cache->cached_units = iter;
return (gconstpointer) unit->data;
}
}
if (gimp_log_flags & GIMP_LOG_BRUSH_CACHE)
g_printerr ("%c", cache->debug_miss);
return NULL;
}
void
gimp_brush_cache_add (GimpBrushCache *cache,
gpointer data,
gint width,
gint height,
gdouble scale,
gdouble aspect_ratio,
gdouble angle,
gboolean reflect,
gdouble hardness)
{
GList *iter;
GimpBrushCacheUnit *unit;
GList *last = NULL;
gint length = 0;
g_return_if_fail (GIMP_IS_BRUSH_CACHE (cache));
g_return_if_fail (data != NULL);
for (iter = cache->cached_units; iter; iter = g_list_next (iter))
{
unit = iter->data;
if (data == unit->data)
return;
length++;
last = iter;
}
if (length > MAX_CACHED_DATA)
{
unit = last->data;
cache->data_destroy (unit->data);
cache->cached_units = g_list_delete_link (cache->cached_units, last);
g_free (unit);
}
unit = g_new0 (GimpBrushCacheUnit, 1);
unit->data = data;
unit->width = width;
unit->height = height;
unit->scale = scale;
unit->aspect_ratio = aspect_ratio;
unit->angle = angle;
unit->reflect = reflect;
unit->hardness = hardness;
cache->cached_units = g_list_prepend (cache->cached_units, unit);
}
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