add cairo

1 files changed, 126 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/src/cairo-cogl-utils.c b/libs/cairo-1.16.0/src/cairo-cogl-utils.c
new file mode 100644
index 0000000..4f02aaa
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-cogl-utils.c
@@ -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;
+}
+