mutter/cogl/cogl-util.c
Emmanuele Bassi 72f4ddf532 Remove mentions of the FSF address
Since using addresses that might change is something that finally
the FSF acknowledge as a plausible scenario (after changing address
twice), the license blurb in the source files should use the URI
for getting the license in case the library did not come with it.

Not that URIs cannot possibly change, but at least it's easier to
set up a redirection at the same place.

As a side note: this commit closes the oldes bug in Clutter's bug
report tool.

http://bugzilla.openedhand.com/show_bug.cgi?id=521
2010-03-01 12:56:10 +00:00

252 lines
6.0 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2007,2008,2009,2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib-object.h>
#include <gobject/gvaluecollector.h>
#include "cogl.h"
#include "cogl-fixed.h"
#include "cogl-internal.h"
#include "cogl-material.h"
#include "cogl-offscreen.h"
#include "cogl-shader.h"
#include "cogl-texture.h"
#include "cogl-types.h"
#include "cogl-handle.h"
#include "cogl-util.h"
/**
* cogl_util_next_p2:
* @a: Value to get the next power
*
* Calculates the next power greater than @a.
*
* Return value: The next power after @a.
*/
int
cogl_util_next_p2 (int a)
{
int rval = 1;
while (rval < a)
rval <<= 1;
return rval;
}
/* gtypes */
CoglHandle
cogl_handle_ref (CoglHandle handle)
{
CoglHandleObject *obj = (CoglHandleObject *)handle;
g_return_val_if_fail (handle != COGL_INVALID_HANDLE, COGL_INVALID_HANDLE);
obj->ref_count++;
return handle;
}
void
cogl_handle_unref (CoglHandle handle)
{
CoglHandleObject *obj = (CoglHandleObject *)handle;
g_return_if_fail (handle != COGL_INVALID_HANDLE);
if (--obj->ref_count < 1)
{
void (*free_func)(void *obj);
COGL_HANDLE_DEBUG_FREE (obj);
free_func = obj->klass->virt_free;
free_func (obj);
}
}
GType
cogl_handle_get_type (void)
{
static GType our_type = 0;
if (G_UNLIKELY (our_type == 0))
our_type = g_boxed_type_register_static (g_intern_static_string ("CoglHandle"),
(GBoxedCopyFunc) cogl_handle_ref,
(GBoxedFreeFunc) cogl_handle_unref);
return our_type;
}
/*
* CoglFixed
*/
static GTypeInfo _info = {
0,
NULL,
NULL,
NULL,
NULL,
NULL,
0,
0,
NULL,
NULL,
};
static GTypeFundamentalInfo _finfo = { 0, };
static void
cogl_value_init_fixed (GValue *value)
{
value->data[0].v_int = 0;
}
static void
cogl_value_copy_fixed (const GValue *src,
GValue *dest)
{
dest->data[0].v_int = src->data[0].v_int;
}
static char *
cogl_value_collect_fixed (GValue *value,
unsigned int n_collect_values,
GTypeCValue *collect_values,
unsigned int collect_flags)
{
value->data[0].v_int = collect_values[0].v_int;
return NULL;
}
static char *
cogl_value_lcopy_fixed (const GValue *value,
unsigned int n_collect_values,
GTypeCValue *collect_values,
unsigned int collect_flags)
{
gint32 *fixed_p = collect_values[0].v_pointer;
if (!fixed_p)
return g_strdup_printf ("value location for '%s' passed as NULL",
G_VALUE_TYPE_NAME (value));
*fixed_p = value->data[0].v_int;
return NULL;
}
static void
cogl_value_transform_fixed_int (const GValue *src,
GValue *dest)
{
dest->data[0].v_int = COGL_FIXED_TO_INT (src->data[0].v_int);
}
static void
cogl_value_transform_fixed_double (const GValue *src,
GValue *dest)
{
dest->data[0].v_double = COGL_FIXED_TO_DOUBLE (src->data[0].v_int);
}
static void
cogl_value_transform_fixed_float (const GValue *src,
GValue *dest)
{
dest->data[0].v_float = COGL_FIXED_TO_FLOAT (src->data[0].v_int);
}
static void
cogl_value_transform_int_fixed (const GValue *src,
GValue *dest)
{
dest->data[0].v_int = COGL_FIXED_FROM_INT (src->data[0].v_int);
}
static void
cogl_value_transform_double_fixed (const GValue *src,
GValue *dest)
{
dest->data[0].v_int = COGL_FIXED_FROM_DOUBLE (src->data[0].v_double);
}
static void
cogl_value_transform_float_fixed (const GValue *src,
GValue *dest)
{
dest->data[0].v_int = COGL_FIXED_FROM_FLOAT (src->data[0].v_float);
}
static const GTypeValueTable _cogl_fixed_value_table = {
cogl_value_init_fixed,
NULL,
cogl_value_copy_fixed,
NULL,
"i",
cogl_value_collect_fixed,
"p",
cogl_value_lcopy_fixed
};
GType
cogl_fixed_get_type (void)
{
static GType _cogl_fixed_type = 0;
if (G_UNLIKELY (_cogl_fixed_type == 0))
{
_info.value_table = & _cogl_fixed_value_table;
_cogl_fixed_type =
g_type_register_fundamental (g_type_fundamental_next (),
g_intern_static_string ("CoglFixed"),
&_info, &_finfo, 0);
g_value_register_transform_func (_cogl_fixed_type, G_TYPE_INT,
cogl_value_transform_fixed_int);
g_value_register_transform_func (G_TYPE_INT, _cogl_fixed_type,
cogl_value_transform_int_fixed);
g_value_register_transform_func (_cogl_fixed_type, G_TYPE_FLOAT,
cogl_value_transform_fixed_float);
g_value_register_transform_func (G_TYPE_FLOAT, _cogl_fixed_type,
cogl_value_transform_float_fixed);
g_value_register_transform_func (_cogl_fixed_type, G_TYPE_DOUBLE,
cogl_value_transform_fixed_double);
g_value_register_transform_func (G_TYPE_DOUBLE, _cogl_fixed_type,
cogl_value_transform_double_fixed);
}
return _cogl_fixed_type;
}