/* GIMP - The GNU Image Manipulation Program * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * gimpbrushcache.c * Copyright (C) 2011 Michael Natterer * * 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 . */ #include "config.h" #include #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); }