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72f4ddf532
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
252 lines
6.0 KiB
C
252 lines
6.0 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) 2007,2008,2009,2010 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, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <glib-object.h>
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#include <gobject/gvaluecollector.h>
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#include "cogl.h"
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#include "cogl-fixed.h"
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#include "cogl-internal.h"
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#include "cogl-material.h"
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#include "cogl-offscreen.h"
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#include "cogl-shader.h"
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#include "cogl-texture.h"
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#include "cogl-types.h"
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#include "cogl-handle.h"
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#include "cogl-util.h"
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/**
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* cogl_util_next_p2:
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* @a: Value to get the next power
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*
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* Calculates the next power greater than @a.
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*
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* Return value: The next power after @a.
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*/
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int
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cogl_util_next_p2 (int a)
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{
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int rval = 1;
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while (rval < a)
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rval <<= 1;
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return rval;
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}
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/* gtypes */
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CoglHandle
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cogl_handle_ref (CoglHandle handle)
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{
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CoglHandleObject *obj = (CoglHandleObject *)handle;
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g_return_val_if_fail (handle != COGL_INVALID_HANDLE, COGL_INVALID_HANDLE);
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obj->ref_count++;
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return handle;
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}
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void
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cogl_handle_unref (CoglHandle handle)
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{
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CoglHandleObject *obj = (CoglHandleObject *)handle;
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g_return_if_fail (handle != COGL_INVALID_HANDLE);
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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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COGL_HANDLE_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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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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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_handle_ref,
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(GBoxedFreeFunc) cogl_handle_unref);
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return our_type;
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}
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/*
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* CoglFixed
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*/
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static GTypeInfo _info = {
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0,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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0,
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0,
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NULL,
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NULL,
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};
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static GTypeFundamentalInfo _finfo = { 0, };
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static void
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cogl_value_init_fixed (GValue *value)
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{
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value->data[0].v_int = 0;
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}
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static void
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cogl_value_copy_fixed (const GValue *src,
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GValue *dest)
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{
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dest->data[0].v_int = src->data[0].v_int;
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}
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static char *
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cogl_value_collect_fixed (GValue *value,
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unsigned int n_collect_values,
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GTypeCValue *collect_values,
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unsigned int collect_flags)
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{
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value->data[0].v_int = collect_values[0].v_int;
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return NULL;
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}
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static char *
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cogl_value_lcopy_fixed (const GValue *value,
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unsigned int n_collect_values,
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GTypeCValue *collect_values,
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unsigned int collect_flags)
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{
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gint32 *fixed_p = collect_values[0].v_pointer;
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if (!fixed_p)
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return g_strdup_printf ("value location for '%s' passed as NULL",
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G_VALUE_TYPE_NAME (value));
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*fixed_p = value->data[0].v_int;
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return NULL;
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}
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static void
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cogl_value_transform_fixed_int (const GValue *src,
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GValue *dest)
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{
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dest->data[0].v_int = COGL_FIXED_TO_INT (src->data[0].v_int);
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}
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static void
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cogl_value_transform_fixed_double (const GValue *src,
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GValue *dest)
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{
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dest->data[0].v_double = COGL_FIXED_TO_DOUBLE (src->data[0].v_int);
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}
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static void
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cogl_value_transform_fixed_float (const GValue *src,
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GValue *dest)
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{
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dest->data[0].v_float = COGL_FIXED_TO_FLOAT (src->data[0].v_int);
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}
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static void
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cogl_value_transform_int_fixed (const GValue *src,
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GValue *dest)
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{
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dest->data[0].v_int = COGL_FIXED_FROM_INT (src->data[0].v_int);
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}
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static void
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cogl_value_transform_double_fixed (const GValue *src,
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GValue *dest)
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{
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dest->data[0].v_int = COGL_FIXED_FROM_DOUBLE (src->data[0].v_double);
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}
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static void
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cogl_value_transform_float_fixed (const GValue *src,
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GValue *dest)
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{
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dest->data[0].v_int = COGL_FIXED_FROM_FLOAT (src->data[0].v_float);
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}
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static const GTypeValueTable _cogl_fixed_value_table = {
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cogl_value_init_fixed,
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NULL,
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cogl_value_copy_fixed,
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NULL,
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"i",
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cogl_value_collect_fixed,
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"p",
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cogl_value_lcopy_fixed
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};
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GType
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cogl_fixed_get_type (void)
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{
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static GType _cogl_fixed_type = 0;
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if (G_UNLIKELY (_cogl_fixed_type == 0))
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{
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_info.value_table = & _cogl_fixed_value_table;
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_cogl_fixed_type =
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g_type_register_fundamental (g_type_fundamental_next (),
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g_intern_static_string ("CoglFixed"),
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&_info, &_finfo, 0);
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g_value_register_transform_func (_cogl_fixed_type, G_TYPE_INT,
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cogl_value_transform_fixed_int);
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g_value_register_transform_func (G_TYPE_INT, _cogl_fixed_type,
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cogl_value_transform_int_fixed);
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g_value_register_transform_func (_cogl_fixed_type, G_TYPE_FLOAT,
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cogl_value_transform_fixed_float);
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g_value_register_transform_func (G_TYPE_FLOAT, _cogl_fixed_type,
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cogl_value_transform_float_fixed);
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g_value_register_transform_func (_cogl_fixed_type, G_TYPE_DOUBLE,
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cogl_value_transform_fixed_double);
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g_value_register_transform_func (G_TYPE_DOUBLE, _cogl_fixed_type,
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cogl_value_transform_double_fixed);
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}
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return _cogl_fixed_type;
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}
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