| 0,0 → 1,126 |
|---|
| /* 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; |
| } |
| |