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/* cairo - a vector graphics library with display and print output
*
* Copyright © 2011 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.og/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* Contributor(s):
* Robert Bragg <robert@linux.intel.com>
*/
#include "cairoint.h"
#include "cairo-cogl-utils-private.h"
#include <cogl/cogl.h>
#include <glib.h>
static cairo_status_t
_cogl_move_to (void *closure,
const cairo_point_t *point)
{
cogl_path_move_to (closure,
_cairo_cogl_util_fixed_to_float (point->x),
_cairo_cogl_util_fixed_to_float (point->y));
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cogl_line_to (void *closure,
const cairo_point_t *point)
{
cogl_path_line_to (closure,
_cairo_cogl_util_fixed_to_float (point->x),
_cairo_cogl_util_fixed_to_float (point->y));
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cogl_curve_to (void *closure,
const cairo_point_t *p0,
const cairo_point_t *p1,
const cairo_point_t *p2)
{
cogl_path_curve_to (closure,
_cairo_cogl_util_fixed_to_float (p0->x),
_cairo_cogl_util_fixed_to_float (p0->y),
_cairo_cogl_util_fixed_to_float (p1->x),
_cairo_cogl_util_fixed_to_float (p1->y),
_cairo_cogl_util_fixed_to_float (p2->x),
_cairo_cogl_util_fixed_to_float (p2->y));
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cogl_close_path (void *closure)
{
cogl_path_close (closure);
return CAIRO_STATUS_SUCCESS;
}
CoglPath *
_cairo_cogl_util_path_from_cairo (const cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
float tolerance)
{
CoglPath *cogl_path = cogl_path_new ();
cairo_status_t status;
if (fill_rule == CAIRO_FILL_RULE_EVEN_ODD)
cogl_path_set_fill_rule (cogl_path, COGL_PATH_FILL_RULE_EVEN_ODD);
else
cogl_path_set_fill_rule (cogl_path, COGL_PATH_FILL_RULE_NON_ZERO);
#ifdef USE_CAIRO_PATH_FLATTENER
/* XXX: rely on cairo to do path flattening, since it seems Cogl's
* curve_to flattening is much slower */
status = _cairo_path_fixed_interpret_flat (path,
_cogl_move_to,
_cogl_line_to,
_cogl_close_path,
cogl_path,
tolerance);
#else
status = _cairo_path_fixed_interpret (path,
_cogl_move_to,
_cogl_line_to,
_cogl_curve_to,
_cogl_close_path,
cogl_path);
#endif
assert (status == CAIRO_STATUS_SUCCESS);
return cogl_path;
}
int
_cairo_cogl_util_next_p2 (int a)
{
int rval = 1;
while (rval < a)
rval <<= 1;
return rval;
}