295 lines
7.9 KiB
C
295 lines
7.9 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2007,2008,2009,2010 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#include "cogl-config.h"
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#include <glib.h>
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#include <string.h>
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#include "cogl-util.h"
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#include "cogl-types.h"
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#include "cogl-object-private.h"
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#include "cogl-gtype-private.h"
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COGL_GTYPE_DEFINE_BASE_CLASS (Object, object);
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void *
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cogl_object_ref (void *object)
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{
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CoglObject *obj = object;
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g_return_val_if_fail (object != NULL, NULL);
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obj->ref_count++;
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return object;
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}
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void
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_cogl_object_default_unref (void *object)
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{
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CoglObject *obj = object;
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g_return_if_fail (object != NULL);
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g_return_if_fail (obj->ref_count > 0);
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if (--obj->ref_count < 1)
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{
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void (*free_func)(void *obj);
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if (obj->n_user_data_entries)
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{
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int i;
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int count = MIN (obj->n_user_data_entries,
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COGL_OBJECT_N_PRE_ALLOCATED_USER_DATA_ENTRIES);
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for (i = 0; i < count; i++)
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{
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CoglUserDataEntry *entry = &obj->user_data_entry[i];
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if (entry->destroy)
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entry->destroy (entry->user_data, obj);
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}
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if (obj->user_data_array != NULL)
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{
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for (i = 0; i < obj->user_data_array->len; i++)
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{
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CoglUserDataEntry *entry =
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&g_array_index (obj->user_data_array,
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CoglUserDataEntry, i);
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if (entry->destroy)
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entry->destroy (entry->user_data, obj);
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}
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g_array_free (obj->user_data_array, TRUE);
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}
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}
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COGL_OBJECT_DEBUG_FREE (obj);
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free_func = obj->klass->virt_free;
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free_func (obj);
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}
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}
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void
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cogl_object_unref (void *obj)
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{
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void (* unref_func) (void *);
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g_return_if_fail (obj != NULL);
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unref_func = ((CoglObject *) obj)->klass->virt_unref;
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unref_func (obj);
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}
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GType
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cogl_handle_get_type (void)
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{
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static GType our_type = 0;
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/* XXX: We are keeping the "CoglHandle" name for now in case it would
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* break bindings to change to "CoglObject" */
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if (G_UNLIKELY (our_type == 0))
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our_type = g_boxed_type_register_static (g_intern_static_string ("CoglHandle"),
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(GBoxedCopyFunc) cogl_object_ref,
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(GBoxedFreeFunc) cogl_object_unref);
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return our_type;
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}
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/* XXX: Unlike for cogl_object_get_user_data this code will return
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* an empty entry if available and no entry for the given key can be
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* found. */
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static CoglUserDataEntry *
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_cogl_object_find_entry (CoglObject *object, CoglUserDataKey *key)
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{
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CoglUserDataEntry *entry = NULL;
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int count;
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int i;
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count = MIN (object->n_user_data_entries,
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COGL_OBJECT_N_PRE_ALLOCATED_USER_DATA_ENTRIES);
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for (i = 0; i < count; i++)
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{
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CoglUserDataEntry *current = &object->user_data_entry[i];
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if (current->key == key)
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return current;
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if (current->user_data == NULL)
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entry = current;
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}
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if (G_UNLIKELY (object->user_data_array != NULL))
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{
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for (i = 0; i < object->user_data_array->len; i++)
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{
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CoglUserDataEntry *current =
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&g_array_index (object->user_data_array, CoglUserDataEntry, i);
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if (current->key == key)
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return current;
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if (current->user_data == NULL)
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entry = current;
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}
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}
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return entry;
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}
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void
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_cogl_object_set_user_data (CoglObject *object,
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CoglUserDataKey *key,
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void *user_data,
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CoglUserDataDestroyInternalCallback destroy)
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{
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CoglUserDataEntry new_entry;
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CoglUserDataEntry *entry;
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if (user_data)
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{
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new_entry.key = key;
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new_entry.user_data = user_data;
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new_entry.destroy = destroy;
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}
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else
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memset (&new_entry, 0, sizeof (new_entry));
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entry = _cogl_object_find_entry (object, key);
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if (entry)
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{
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if (G_LIKELY (entry->destroy))
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entry->destroy (entry->user_data, object);
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}
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else
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{
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/* NB: Setting a value of NULL is documented to delete the
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* corresponding entry so we can return immediately in this
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* case. */
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if (user_data == NULL)
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return;
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if (G_LIKELY (object->n_user_data_entries <
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COGL_OBJECT_N_PRE_ALLOCATED_USER_DATA_ENTRIES))
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entry = &object->user_data_entry[object->n_user_data_entries++];
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else
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{
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if (G_UNLIKELY (object->user_data_array == NULL))
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{
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object->user_data_array =
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g_array_new (FALSE, FALSE, sizeof (CoglUserDataEntry));
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}
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g_array_set_size (object->user_data_array,
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object->user_data_array->len + 1);
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entry =
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&g_array_index (object->user_data_array, CoglUserDataEntry,
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object->user_data_array->len - 1);
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object->n_user_data_entries++;
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}
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}
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*entry = new_entry;
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}
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void
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cogl_object_set_user_data (CoglObject *object,
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CoglUserDataKey *key,
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void *user_data,
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CoglUserDataDestroyCallback destroy)
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{
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_cogl_object_set_user_data (object, key, user_data,
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(CoglUserDataDestroyInternalCallback)destroy);
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}
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void *
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cogl_object_get_user_data (CoglObject *object, CoglUserDataKey *key)
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{
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int count;
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int i;
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count = MIN (object->n_user_data_entries,
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COGL_OBJECT_N_PRE_ALLOCATED_USER_DATA_ENTRIES);
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for (i = 0; i < count; i++)
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{
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CoglUserDataEntry *entry = &object->user_data_entry[i];
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if (entry->key == key)
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return entry->user_data;
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}
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if (object->user_data_array != NULL)
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{
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for (i = 0; i < object->user_data_array->len; i++)
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{
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CoglUserDataEntry *entry =
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&g_array_index (object->user_data_array, CoglUserDataEntry, i);
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if (entry->key == key)
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return entry->user_data;
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}
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}
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return NULL;
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}
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void
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cogl_debug_object_foreach_type (CoglDebugObjectForeachTypeCallback func,
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void *user_data)
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{
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GHashTableIter iter;
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unsigned long *instance_count;
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CoglDebugObjectTypeInfo info;
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g_hash_table_iter_init (&iter, _cogl_debug_instances);
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while (g_hash_table_iter_next (&iter,
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(void *) &info.name,
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(void *) &instance_count))
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{
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info.instance_count = *instance_count;
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func (&info, user_data);
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}
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}
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static void
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print_instances_cb (const CoglDebugObjectTypeInfo *info,
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void *user_data)
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{
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g_print ("\t%s: %lu\n", info->name, info->instance_count);
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}
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void
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cogl_debug_object_print_instances (void)
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{
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g_print ("Cogl instances:\n");
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cogl_debug_object_foreach_type (print_instances_cb, NULL);
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}
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