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Since the Cogl 1.18 branch is actively maintained in parallel with the
master branch; this is a counter part to commit 1b83ef938fc16b which
re-licensed the master branch to use the MIT license.
This re-licensing is a follow up to the proposal that was sent to the
Cogl mailing list:
http://lists.freedesktop.org/archives/cogl/2013-December/001465.html
Note: there was a copyright assignment policy in place for Clutter (and
therefore Cogl which was part of Clutter at the time) until the 11th of
June 2010 and so we only checked the details after that point (commit
0bbf50f905)
For each file, authors were identified via this Git command:
$ git blame -p -C -C -C20 -M -M10 0bbf50f905..HEAD
We received blanket approvals for re-licensing all Red Hat and Collabora
contributions which reduced how many people needed to be contacted
individually:
- http://lists.freedesktop.org/archives/cogl/2013-December/001470.html
- http://lists.freedesktop.org/archives/cogl/2014-January/001536.html
Individual approval requests were sent to all the other identified authors
who all confirmed the re-license on the Cogl mailinglist:
http://lists.freedesktop.org/archives/cogl/2014-January
As well as updating the copyright header in all sources files, the
COPYING file has been updated to reflect the license change and also
document the other licenses used in Cogl such as the SGI Free Software
License B, version 2.0 and the 3-clause BSD license.
This patch was not simply cherry-picked from master; but the same
methodology was used to check the source files.
289 lines
14 KiB
C
289 lines
14 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) 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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#ifndef __COGL_OBJECT_PRIVATE_H
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#define __COGL_OBJECT_PRIVATE_H
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#include <glib.h>
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#include "cogl-types.h"
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#include "cogl-object.h"
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#include "cogl-debug.h"
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/* For compatability until all components have been converted */
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typedef struct _CoglObjectClass CoglHandleClass;
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typedef struct _CoglObject CoglHandleObject;
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/* XXX: sadly we didn't fully consider when we copied the cairo API
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* for _set_user_data that the callback doesn't get a pointer to the
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* instance which is desired in most cases. This means you tend to end
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* up creating micro allocations for the private data just so you can
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* pair up the data of interest with the original instance for
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* identification when it is later destroyed.
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*
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* Internally we use a small hack to avoid needing these micro
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* allocations by actually passing the instance as a second argument
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* to the callback */
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typedef void (*CoglUserDataDestroyInternalCallback) (void *user_data,
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void *instance);
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typedef struct _CoglObjectClass
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{
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const char *name;
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void *virt_free;
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void *virt_unref;
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} CoglObjectClass;
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#define COGL_OBJECT_N_PRE_ALLOCATED_USER_DATA_ENTRIES 2
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typedef struct
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{
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CoglUserDataKey *key;
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void *user_data;
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CoglUserDataDestroyInternalCallback destroy;
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} CoglUserDataEntry;
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/* All Cogl objects inherit from this base object by adding a member:
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*
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* CoglObject _parent;
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*
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* at the top of its main structure. This structure is initialized
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* when you call _cogl_#type_name#_object_new (new_object);
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*/
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struct _CoglObject
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{
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CoglObjectClass *klass;
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CoglUserDataEntry user_data_entry[
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COGL_OBJECT_N_PRE_ALLOCATED_USER_DATA_ENTRIES];
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GArray *user_data_array;
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int n_user_data_entries;
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unsigned int ref_count;
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};
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/* Helper macro to encapsulate the common code for COGL reference
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counted objects */
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#ifdef COGL_OBJECT_DEBUG
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#define _COGL_OBJECT_DEBUG_NEW(type_name, obj) \
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COGL_NOTE (OBJECT, "COGL " G_STRINGIFY (type_name) " NEW %p %i", \
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(obj), (obj)->ref_count)
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#define _COGL_OBJECT_DEBUG_REF(type_name, object) G_STMT_START { \
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CoglObject *__obj = (CoglObject *)object; \
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COGL_NOTE (OBJECT, "COGL %s REF %p %i", \
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(__obj)->klass->name, \
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(__obj), (__obj)->ref_count); } G_STMT_END
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#define _COGL_OBJECT_DEBUG_UNREF(type_name, object) G_STMT_START { \
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CoglObject *__obj = (CoglObject *)object; \
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COGL_NOTE (OBJECT, "COGL %s UNREF %p %i", \
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(__obj)->klass->name, \
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(__obj), (__obj)->ref_count - 1); } G_STMT_END
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#define COGL_OBJECT_DEBUG_FREE(obj) \
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COGL_NOTE (OBJECT, "COGL %s FREE %p", \
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(obj)->klass->name, (obj))
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#else /* !COGL_OBJECT_DEBUG */
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#define _COGL_OBJECT_DEBUG_NEW(type_name, obj)
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#define _COGL_OBJECT_DEBUG_REF(type_name, obj)
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#define _COGL_OBJECT_DEBUG_UNREF(type_name, obj)
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#define COGL_OBJECT_DEBUG_FREE(obj)
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#endif /* COGL_OBJECT_DEBUG */
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#define COGL_OBJECT_COMMON_DEFINE_WITH_CODE(TypeName, type_name, code) \
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\
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CoglObjectClass _cogl_##type_name##_class; \
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static unsigned long _cogl_object_##type_name##_count; \
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\
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static inline void \
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_cogl_object_##type_name##_inc (void) \
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{ \
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_cogl_object_##type_name##_count++; \
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} \
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\
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static inline void \
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_cogl_object_##type_name##_dec (void) \
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{ \
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_cogl_object_##type_name##_count--; \
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} \
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\
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static void \
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_cogl_object_##type_name##_indirect_free (CoglObject *obj) \
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{ \
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_cogl_##type_name##_free ((Cogl##TypeName *) obj); \
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_cogl_object_##type_name##_dec (); \
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} \
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\
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static Cogl##TypeName * \
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_cogl_##type_name##_object_new (Cogl##TypeName *new_obj) \
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{ \
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CoglObject *obj = (CoglObject *)&new_obj->_parent; \
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obj->ref_count = 0; \
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cogl_object_ref (obj); \
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obj->n_user_data_entries = 0; \
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obj->user_data_array = NULL; \
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\
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obj->klass = &_cogl_##type_name##_class; \
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if (!obj->klass->virt_free) \
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{ \
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_cogl_object_##type_name##_count = 0; \
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\
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if (_cogl_debug_instances == NULL) \
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_cogl_debug_instances = \
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g_hash_table_new (g_str_hash, g_str_equal); \
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\
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obj->klass->virt_free = \
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_cogl_object_##type_name##_indirect_free; \
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obj->klass->virt_unref = \
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_cogl_object_default_unref; \
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obj->klass->name = "Cogl"#TypeName, \
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\
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g_hash_table_insert (_cogl_debug_instances, \
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(void *) obj->klass->name, \
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&_cogl_object_##type_name##_count); \
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\
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{ code; } \
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} \
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\
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_cogl_object_##type_name##_inc (); \
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_COGL_OBJECT_DEBUG_NEW (TypeName, obj); \
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return new_obj; \
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}
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#define COGL_OBJECT_DEFINE_WITH_CODE(TypeName, type_name, code) \
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\
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COGL_OBJECT_COMMON_DEFINE_WITH_CODE(TypeName, type_name, code) \
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\
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CoglBool \
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cogl_is_##type_name (void *object) \
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{ \
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CoglObject *obj = object; \
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\
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if (object == NULL) \
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return FALSE; \
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\
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return obj->klass == &_cogl_##type_name##_class; \
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}
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#define COGL_OBJECT_INTERNAL_DEFINE_WITH_CODE(TypeName, type_name, code) \
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\
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COGL_OBJECT_COMMON_DEFINE_WITH_CODE(TypeName, type_name, code) \
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\
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CoglBool \
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_cogl_is_##type_name (void *object) \
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{ \
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CoglObject *obj = object; \
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\
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if (object == NULL) \
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return FALSE; \
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\
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return obj->klass == &_cogl_##type_name##_class; \
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}
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#define COGL_OBJECT_DEFINE_DEPRECATED_REF_COUNTING(type_name) \
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\
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void * G_GNUC_DEPRECATED \
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cogl_##type_name##_ref (void *object) \
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{ \
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if (!cogl_is_##type_name (object)) \
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return NULL; \
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\
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_COGL_OBJECT_DEBUG_REF (TypeName, object); \
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\
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cogl_handle_ref (object); \
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\
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return object; \
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} \
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\
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void G_GNUC_DEPRECATED \
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cogl_##type_name##_unref (void *object) \
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{ \
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if (!cogl_is_##type_name (object)) \
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{ \
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g_warning (G_STRINGIFY (cogl_##type_name##_unref) \
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": Ignoring unref of Cogl handle " \
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"due to type mismatch"); \
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return; \
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} \
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\
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_COGL_OBJECT_DEBUG_UNREF (TypeName, object); \
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\
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cogl_handle_unref (object); \
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}
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#define COGL_OBJECT_DEFINE(TypeName, type_name) \
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COGL_OBJECT_DEFINE_WITH_CODE (TypeName, type_name, (void) 0)
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#define COGL_OBJECT_INTERNAL_DEFINE(TypeName, type_name) \
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COGL_OBJECT_INTERNAL_DEFINE_WITH_CODE (TypeName, type_name, (void) 0)
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/* For temporary compatability */
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#define COGL_HANDLE_INTERNAL_DEFINE_WITH_CODE(TypeName, type_name, code) \
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\
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COGL_OBJECT_INTERNAL_DEFINE_WITH_CODE (TypeName, type_name, code) \
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\
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static Cogl##TypeName * \
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_cogl_##type_name##_handle_new (CoglHandle handle) \
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{ \
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return _cogl_##type_name##_object_new (handle); \
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}
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#define COGL_HANDLE_DEFINE_WITH_CODE(TypeName, type_name, code) \
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\
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COGL_OBJECT_DEFINE_WITH_CODE (TypeName, type_name, code) \
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\
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static Cogl##TypeName * \
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_cogl_##type_name##_handle_new (CoglHandle handle) \
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{ \
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return _cogl_##type_name##_object_new (handle); \
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}
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#define COGL_HANDLE_DEFINE(TypeName, type_name) \
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COGL_HANDLE_DEFINE_WITH_CODE (TypeName, type_name, (void) 0)
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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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void
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_cogl_object_default_unref (void *obj);
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#endif /* __COGL_OBJECT_PRIVATE_H */
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