add cairo

1 files changed, 143 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/src/cairo-traps-private.h b/libs/cairo-1.16.0/src/cairo-traps-private.h
new file mode 100644
index 0000000..dcaf40d
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-traps-private.h
@@ -0,0 +1,143 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * 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.org/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.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_TRAPS_PRIVATE_H
+#define CAIRO_TRAPS_PRIVATE_H
+
+#include "cairo-compiler-private.h"
+#include "cairo-error-private.h"
+#include "cairo-types-private.h"
+
+CAIRO_BEGIN_DECLS
+
+struct _cairo_traps {
+    cairo_status_t status;
+
+    cairo_box_t bounds;
+    const cairo_box_t *limits;
+    int num_limits;
+
+    unsigned int maybe_region : 1; /* hint: 0 implies that it cannot be */
+    unsigned int has_intersections : 1;
+    unsigned int is_rectilinear : 1;
+    unsigned int is_rectangular : 1;
+
+    int num_traps;
+    int traps_size;
+    cairo_trapezoid_t *traps;
+    cairo_trapezoid_t  traps_embedded[16];
+};
+
+/* cairo-traps.c */
+cairo_private void
+_cairo_traps_init (cairo_traps_t *traps);
+
+cairo_private void
+_cairo_traps_init_with_clip (cairo_traps_t *traps,
+			     const cairo_clip_t *clip);
+
+cairo_private void
+_cairo_traps_limit (cairo_traps_t	*traps,
+		    const cairo_box_t	*boxes,
+		    int			 num_boxes);
+
+cairo_private cairo_status_t
+_cairo_traps_init_boxes (cairo_traps_t	    *traps,
+		         const cairo_boxes_t *boxes);
+
+cairo_private void
+_cairo_traps_clear (cairo_traps_t *traps);
+
+cairo_private void
+_cairo_traps_fini (cairo_traps_t *traps);
+
+#define _cairo_traps_status(T) (T)->status
+
+cairo_private void
+_cairo_traps_translate (cairo_traps_t *traps, int x, int y);
+
+cairo_private void
+_cairo_traps_tessellate_triangle_with_edges (cairo_traps_t *traps,
+					     const cairo_point_t t[3],
+					     const cairo_point_t edges[4]);
+
+cairo_private void
+_cairo_traps_tessellate_convex_quad (cairo_traps_t *traps,
+				     const cairo_point_t q[4]);
+
+cairo_private cairo_status_t
+_cairo_traps_tessellate_rectangle (cairo_traps_t *traps,
+				   const cairo_point_t *top_left,
+				   const cairo_point_t *bottom_right);
+
+cairo_private void
+_cairo_traps_add_trap (cairo_traps_t *traps,
+		       cairo_fixed_t top, cairo_fixed_t bottom,
+		       const cairo_line_t *left,
+		       const cairo_line_t *right);
+
+cairo_private int
+_cairo_traps_contain (const cairo_traps_t *traps,
+		      double x, double y);
+
+cairo_private void
+_cairo_traps_extents (const cairo_traps_t *traps,
+		      cairo_box_t         *extents);
+
+cairo_private cairo_int_status_t
+_cairo_traps_extract_region (cairo_traps_t  *traps,
+			     cairo_antialias_t antialias,
+			     cairo_region_t **region);
+
+cairo_private cairo_bool_t
+_cairo_traps_to_boxes (cairo_traps_t *traps,
+		       cairo_antialias_t antialias,
+		       cairo_boxes_t *boxes);
+
+cairo_private cairo_status_t
+_cairo_traps_path (const cairo_traps_t *traps,
+		   cairo_path_fixed_t  *path);
+
+cairo_private cairo_int_status_t
+_cairo_rasterise_polygon_to_traps (cairo_polygon_t			*polygon,
+				   cairo_fill_rule_t			 fill_rule,
+				   cairo_antialias_t			 antialias,
+				   cairo_traps_t *traps);
+
+CAIRO_END_DECLS
+
+#endif /* CAIRO_TRAPS_PRIVATE_H */