LCOV - app.info - gfx/cairo/cairo/src/cairo-path-fixed-private.h

LCOV - code coverage report
| Current view: | directory - gfx/cairo/cairo/src - cairo-path-fixed-private.h (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 9 | 2 | 22.2 %
| Date: | 2012-07-07 | Functions: | 2 | 1 | 50.0 %

           1                 : /* cairo - a vector graphics library with display and print output
           2                 :  *
           3                 :  * Copyright © 2005 Red Hat, Inc.
           4                 :  *
           5                 :  * This library is free software; you can redistribute it and/or
           6                 :  * modify it either under the terms of the GNU Lesser General Public
           7                 :  * License version 2.1 as published by the Free Software Foundation
           8                 :  * (the "LGPL") or, at your option, under the terms of the Mozilla
           9                 :  * Public License Version 1.1 (the "MPL"). If you do not alter this
          10                 :  * notice, a recipient may use your version of this file under either
          11                 :  * the MPL or the LGPL.
          12                 :  *
          13                 :  * You should have received a copy of the LGPL along with this library
          14                 :  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
          15                 :  * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
          16                 :  * You should have received a copy of the MPL along with this library
          17                 :  * in the file COPYING-MPL-1.1
          18                 :  *
          19                 :  * The contents of this file are subject to the Mozilla Public License
          20                 :  * Version 1.1 (the "License"); you may not use this file except in
          21                 :  * compliance with the License. You may obtain a copy of the License at
          22                 :  * http://www.mozilla.org/MPL/
          23                 :  *
          24                 :  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
          25                 :  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
          26                 :  * the specific language governing rights and limitations.
          27                 :  *
          28                 :  * The Original Code is the cairo graphics library.
          29                 :  *
          30                 :  * The Initial Developer of the Original Code is Red Hat, Inc.
          31                 :  *
          32                 :  * Contributor(s):
          33                 :  *      Carl D. Worth <cworth@redhat.com>
          34                 :  */
          35                 :
          36                 : #ifndef CAIRO_PATH_FIXED_PRIVATE_H
          37                 : #define CAIRO_PATH_FIXED_PRIVATE_H
          38                 :
          39                 : #include "cairo-types-private.h"
          40                 : #include "cairo-compiler-private.h"
          41                 : #include "cairo-list-private.h"
          42                 :
          43                 : #define WATCH_PATH 0
          44                 : #if WATCH_PATH
          45                 : #include <stdio.h>
          46                 : #endif
          47                 :
          48                 : enum cairo_path_op {
          49                 :     CAIRO_PATH_OP_MOVE_TO = 0,
          50                 :     CAIRO_PATH_OP_LINE_TO = 1,
          51                 :     CAIRO_PATH_OP_CURVE_TO = 2,
          52                 :     CAIRO_PATH_OP_CLOSE_PATH = 3
          53                 : };
          54                 :
          55                 : /* we want to make sure a single byte is used for the enum */
          56                 : typedef char cairo_path_op_t;
          57                 :
          58                 : /* make _cairo_path_fixed fit into ~512 bytes -- about 50 items */
          59                 : #define CAIRO_PATH_BUF_SIZE ((512 - sizeof (cairo_path_buf_t)) \
          60                 :                            / (2 * sizeof (cairo_point_t) + sizeof (cairo_path_op_t)))
          61                 :
          62                 : typedef struct _cairo_path_buf {
          63                 :     cairo_list_t link;
          64                 :     unsigned int num_ops;
          65                 :     unsigned int size_ops;
          66                 :     unsigned int num_points;
          67                 :     unsigned int size_points;
          68                 :
          69                 :     cairo_path_op_t *op;
          70                 :     cairo_point_t *points;
          71                 : } cairo_path_buf_t;
          72                 :
          73                 : typedef struct _cairo_path_buf_fixed {
          74                 :     cairo_path_buf_t base;
          75                 :
          76                 :     cairo_path_op_t op[CAIRO_PATH_BUF_SIZE];
          77                 :     cairo_point_t points[2 * CAIRO_PATH_BUF_SIZE];
          78                 : } cairo_path_buf_fixed_t;
          79                 :
          80                 : struct _cairo_path_fixed {
          81                 :     cairo_point_t last_move_point;
          82                 :     cairo_point_t current_point;
          83                 :     unsigned int has_current_point      : 1;
          84                 :     unsigned int has_last_move_point    : 1;
          85                 :     unsigned int has_curve_to           : 1;
          86                 :     unsigned int is_rectilinear         : 1;
          87                 :     unsigned int maybe_fill_region      : 1;
          88                 :     unsigned int is_empty_fill          : 1;
          89                 :
          90                 :     cairo_box_t extents;
          91                 :
          92                 :     cairo_path_buf_fixed_t  buf;
          93                 : };
          94                 :
          95                 : cairo_private void
          96                 : _cairo_path_fixed_translate (cairo_path_fixed_t *path,
          97                 :                              cairo_fixed_t offx,
          98                 :                              cairo_fixed_t offy);
          99                 :
         100                 : cairo_private cairo_status_t
         101                 : _cairo_path_fixed_append (cairo_path_fixed_t                *path,
         102                 :                           const cairo_path_fixed_t          *other,
         103                 :                           cairo_direction_t                  dir,
         104                 :                           cairo_fixed_t                      tx,
         105                 :                           cairo_fixed_t                      ty);
         106                 :
         107                 : cairo_private unsigned long
         108                 : _cairo_path_fixed_hash (const cairo_path_fixed_t *path);
         109                 :
         110                 : cairo_private unsigned long
         111                 : _cairo_path_fixed_size (const cairo_path_fixed_t *path);
         112                 :
         113                 : cairo_private cairo_bool_t
         114                 : _cairo_path_fixed_equal (const cairo_path_fixed_t *a,
         115                 :                          const cairo_path_fixed_t *b);
         116                 :
         117                 : typedef struct _cairo_path_fixed_iter {
         118                 :     const cairo_path_buf_t *first;
         119                 :     const cairo_path_buf_t *buf;
         120                 :     unsigned int n_op;
         121                 :     unsigned int n_point;
         122                 : } cairo_path_fixed_iter_t;
         123                 :
         124                 : cairo_private void
         125                 : _cairo_path_fixed_iter_init (cairo_path_fixed_iter_t *iter,
         126                 :                              const cairo_path_fixed_t *path);
         127                 :
         128                 : cairo_private cairo_bool_t
         129                 : _cairo_path_fixed_iter_is_fill_box (cairo_path_fixed_iter_t *_iter,
         130                 :                                     cairo_box_t *box);
         131                 :
         132                 : cairo_private cairo_bool_t
         133                 : _cairo_path_fixed_iter_at_end (const cairo_path_fixed_iter_t *iter);
         134                 :
         135                 : static inline cairo_bool_t
         136              21 : _cairo_path_fixed_fill_is_empty (const cairo_path_fixed_t *path)
         137                 : {
         138              21 :     return path->is_empty_fill;
         139                 : }
         140                 :
         141                 : static inline cairo_bool_t
         142               0 : _cairo_path_fixed_is_rectilinear_fill (const cairo_path_fixed_t *path)
         143                 : {
         144               0 :     if (! path->is_rectilinear)
         145               0 :         return 0;
         146                 :
         147               0 :     if (! path->has_current_point)
         148               0 :         return 1;
         149                 :
         150                 :     /* check whether the implicit close preserves the rectilinear property */
         151               0 :     return path->current_point.x == path->last_move_point.x ||
         152               0 :            path->current_point.y == path->last_move_point.y;
         153                 : }
         154                 :
         155                 : static inline cairo_bool_t
         156                 : _cairo_path_fixed_maybe_fill_region (const cairo_path_fixed_t *path)
         157                 : {
         158                 : #if WATCH_PATH
         159                 :     fprintf (stderr, "_cairo_path_fixed_maybe_fill_region () = %s\n",
         160                 :              path->maybe_fill_region ? "true" : "false");
         161                 : #endif
         162                 :     return path->maybe_fill_region;
         163                 : }
         164                 :
         165                 : #endif /* CAIRO_PATH_FIXED_PRIVATE_H */

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