add cairo

1 files changed, 95 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/perf/micro/pythagoras-tree.c b/libs/cairo-1.16.0/perf/micro/pythagoras-tree.c
new file mode 100644
index 0000000..9d3ca11
--- /dev/null
+++ b/libs/cairo-1.16.0/perf/micro/pythagoras-tree.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright © 2007 Chris Wilson
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of
+ * Chris Wilson not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Chris Wilson makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairo-perf.h"
+#define _USE_MATH_DEFINES /* for M_SQRT2 on win32 */
+#include <math.h>
+
+static void
+add_rectangle (cairo_t *cr, double size)
+{
+    double x, y;
+
+    if (size < 1)
+	return;
+
+    cairo_get_current_point (cr, &x, &y);
+
+    cairo_rel_move_to (cr, -size/2., -size/2.);
+    cairo_rel_line_to (cr, size, 0);
+    cairo_rel_line_to (cr, 0, size);
+    cairo_rel_line_to (cr, -size, 0);
+    cairo_close_path (cr);
+
+    cairo_save (cr);
+    cairo_translate (cr, -size/2., size);
+    cairo_move_to (cr, x, y);
+    cairo_rotate (cr, M_PI/4);
+    add_rectangle (cr, size / M_SQRT2);
+    cairo_restore (cr);
+
+    cairo_save (cr);
+    cairo_translate (cr, size/2., size);
+    cairo_move_to (cr, x, y);
+    cairo_rotate (cr, -M_PI/4);
+    add_rectangle (cr, size / M_SQRT2);
+    cairo_restore (cr);
+}
+
+static cairo_time_t
+do_pythagoras_tree (cairo_t *cr, int width, int height, int loops)
+{
+    double size = 128;
+
+    cairo_perf_timer_start ();
+
+    while (loops--) {
+	cairo_save (cr);
+	cairo_translate (cr, 0, height);
+	cairo_scale (cr, 1, -1);
+
+	cairo_move_to (cr, width/2, size/2);
+	add_rectangle (cr, size);
+	cairo_set_source_rgb (cr, 0., 0., 0.);
+	cairo_fill (cr);
+	cairo_restore (cr);
+    }
+
+    cairo_perf_timer_stop ();
+
+    return cairo_perf_timer_elapsed ();
+}
+
+cairo_bool_t
+pythagoras_tree_enabled (cairo_perf_t *perf)
+{
+    return cairo_perf_can_run (perf, "pythagoras-tree", NULL);
+}
+
+void
+pythagoras_tree (cairo_perf_t *perf, cairo_t *cr, int width, int height)
+{
+    cairo_perf_run (perf, "pythagoras-tree", do_pythagoras_tree, NULL);
+}