add cairo

1 files changed, 80 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/perf/micro/subimage_copy.c b/libs/cairo-1.16.0/perf/micro/subimage_copy.c
new file mode 100644
index 0000000..e749c06
--- /dev/null
+++ b/libs/cairo-1.16.0/perf/micro/subimage_copy.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright © 2006 Red Hat, Inc.
+ *
+ * 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
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairo-perf.h"
+
+/* This case exposes a performance bug found by Christopher "Monty"
+ * Montgomery in that copying a tiny portion of an image surface to an
+ * X surface causes the entire image surface to be copied to an
+ * intermediate surface.
+ *
+ * If the performance bug is fixed, then the time this test takes
+ * should be independent of the source and destination surface sizes.
+ */
+
+static cairo_time_t
+do_subimage_copy (cairo_t *cr, int width, int height, int loops)
+{
+    cairo_rectangle (cr, 2, 2, 4, 4);
+    cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+
+    cairo_perf_timer_start ();
+
+    while (loops--)
+	cairo_fill_preserve (cr);
+
+    cairo_perf_timer_stop ();
+
+    cairo_new_path (cr);
+
+    return cairo_perf_timer_elapsed ();
+}
+
+cairo_bool_t
+subimage_copy_enabled (cairo_perf_t *perf)
+{
+    return cairo_perf_can_run (perf, "subimage-copy", NULL);
+}
+
+void
+subimage_copy (cairo_perf_t *perf, cairo_t *cr, int width, int height)
+{
+    cairo_surface_t *image;
+    cairo_t *cr2;
+
+    cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
+    cairo_paint (cr);
+
+    image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
+    cr2 = cairo_create (image);
+    cairo_set_source_rgb (cr2, 1, 0, 0); /* red */
+    cairo_paint (cr2);
+    cairo_destroy (cr2);
+
+    cairo_set_source_surface (cr, image, 0, 0);
+    cairo_surface_destroy (image);
+
+    cairo_perf_run (perf, "subimage-copy", do_subimage_copy, NULL);
+}