2fdc7e6a1b
Currently, COGL depends on defining debug symbols by manually
modifying the source code. When it's done, it will forcefully
print stuff to the console.
Since COGL has also a pretty, runtime selectable debugging API
we might as well switch everything to it.
In order for this to happen, configure needs a new:
--enable-cogl-debug
command line switch; this will enable COGL debugging, the
CoglHandle debugging and will also turn on the error checking
for each GL operation.
The default setting for the COGL debug defines is off, since
it slows down the GL operations; enabling it for a particular
debug build is trivial, though.
156 lines
6 KiB
C
156 lines
6 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2008,2009 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __COGL_HANDLE_H
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#define __COGL_HANDLE_H
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typedef struct _CoglHandleClass
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{
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GQuark type;
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void *virt_free;
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} CoglHandleClass;
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/* All Cogl objects inherit from this base object by adding a member:
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*
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* CoglHandleObject _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#_handle_new (new_object);
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*/
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typedef struct _CoglHandleObject
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{
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guint ref_count;
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CoglHandleClass *klass;
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} CoglHandleObject;
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/* Helper macro to encapsulate the common code for COGL reference
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counted handles */
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#ifdef COGL_HANDLE_DEBUG
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#define _COGL_HANDLE_DEBUG_NEW(type_name, obj) \
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COGL_NOTE (HANDLE, "COGL " G_STRINGIFY (type_name) " NEW %p %i\n", \
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(obj), (obj)->ref_count)
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#define _COGL_HANDLE_DEBUG_REF(type_name, handle) G_STMT_START { \
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CoglHandleObject *__obj = (CoglHandleObject *)handle; \
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COGL_NOTE (HANDLE, "COGL %s REF %p %i\n", \
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g_quark_to_string ((__obj)->klass->type), \
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(__obj), (__obj)->ref_count); } G_STMT_END
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#define _COGL_HANDLE_DEBUG_UNREF(type_name, handle) G_STMT_START { \
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CoglHandleObject *__obj = (CoglHandleObject *)handle; \
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COGL_NOTE (HANDLE, "COGL %s UNREF %p %i\n", \
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g_quark_to_string ((__obj)->klass->type), \
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(__obj), (__obj)->ref_count - 1); } G_STMT_END
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#define COGL_HANDLE_DEBUG_FREE(obj) \
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COGL_NOTE (HANDLE, "COGL %s FREE %p\n", \
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g_quark_to_string ((obj)->klass->type), (obj))
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#else /* !COGL_HANDLE_DEBUG */
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#define _COGL_HANDLE_DEBUG_NEW(type_name, obj)
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#define _COGL_HANDLE_DEBUG_REF(type_name, obj)
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#define _COGL_HANDLE_DEBUG_UNREF(type_name, obj)
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#define COGL_HANDLE_DEBUG_FREE(obj)
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#endif /* COGL_HANDLE_DEBUG */
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#define COGL_HANDLE_DEFINE(TypeName, type_name) \
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\
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static CoglHandleClass _cogl_##type_name##_class; \
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\
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static GQuark \
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_cogl_##type_name##_get_type (void) \
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{ \
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static GQuark type = 0; \
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if (!type) \
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type = g_quark_from_static_string ("Cogl"#TypeName); \
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return type; \
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} \
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\
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static CoglHandle \
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_cogl_##type_name##_handle_new (Cogl##TypeName *new_obj) \
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{ \
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CoglHandleObject *obj = &new_obj->_parent; \
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obj->ref_count = 1; \
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\
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obj->klass = &_cogl_##type_name##_class; \
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if (!obj->klass->type) \
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{ \
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obj->klass->type = _cogl_##type_name##_get_type (); \
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obj->klass->virt_free = _cogl_##type_name##_free; \
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} \
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\
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_COGL_HANDLE_DEBUG_NEW (TypeName, obj); \
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return (CoglHandle) new_obj; \
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} \
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\
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Cogl##TypeName * \
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_cogl_##type_name##_pointer_from_handle (CoglHandle handle) \
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{ \
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return (Cogl##TypeName *) handle; \
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} \
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\
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gboolean \
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cogl_is_##type_name (CoglHandle handle) \
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{ \
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CoglHandleObject *obj = (CoglHandleObject *)handle; \
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\
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if (handle == COGL_INVALID_HANDLE) \
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return FALSE; \
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\
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return (obj->klass->type == _cogl_##type_name##_get_type ()); \
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} \
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\
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CoglHandle G_GNUC_DEPRECATED \
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cogl_##type_name##_ref (CoglHandle handle) \
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{ \
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if (!cogl_is_##type_name (handle)) \
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return COGL_INVALID_HANDLE; \
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\
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_COGL_HANDLE_DEBUG_REF (TypeName, handle); \
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\
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cogl_handle_ref (handle); \
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\
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return handle; \
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} \
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\
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void G_GNUC_DEPRECATED \
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cogl_##type_name##_unref (CoglHandle handle) \
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{ \
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if (!cogl_is_##type_name (handle)) \
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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_HANDLE_DEBUG_UNREF (TypeName, handle); \
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\
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cogl_handle_unref (handle); \
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}
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#endif /* __COGL_HANDLE_H */
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