1 files changed, 117 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/perf/micro/composite-checker.c b/libs/cairo-1.16.0/perf/micro/composite-checker.c
new file mode 100644
index 0000000..d6d17ab
--- /dev/null
+++ b/libs/cairo-1.16.0/perf/micro/composite-checker.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright © 2007 Björn Lindqvist
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Author: Björn Lindqvist <bjourne@gmail.com>
+ */
+
+#include "cairo-perf.h"
+
+/* This test case measures how much time cairo takes to render the
+ * equivalent of the following gdk-pixbuf operation:
+ *
+ *    gdk_pixbuf_composite_color(dest,
+ *                               0, 0, DST_SIZE, DST_SIZE,
+ *                               0, 0,
+ *                               SCALE, SCALE,
+ *                               gdk.INTERP_NEAREST,
+ *                               255,
+ *                               0, 0,
+ *                               8, 0x33333333, 0x88888888);
+ *
+ * Cairo is (at the time of writing) about 2-3 times as slow as
+ * gdk-pixbuf.
+ */
+#define PAT_SIZE    16
+#define SRC_SIZE    64
+
+static cairo_pattern_t *checkerboard = NULL;
+static cairo_pattern_t *src_pattern = NULL;
+
+static cairo_time_t
+do_composite_checker (cairo_t *cr,
+                      int      width,
+                      int      height,
+		      int loops)
+{
+    /* Compute zoom so that the src_pattern covers the whole output image. */
+    double xscale = width / (double) SRC_SIZE;
+    double yscale = height / (double) SRC_SIZE;
+
+    cairo_perf_timer_start ();
+
+    while (loops--) {
+	/* Fill the surface with our background. */
+	cairo_identity_matrix (cr);
+	cairo_set_source (cr, checkerboard);
+	cairo_paint (cr);
+
+	/* Draw the scaled image on top. */
+	cairo_scale (cr, xscale, yscale);
+	cairo_set_source (cr, src_pattern);
+	cairo_paint (cr);
+    }
+
+    cairo_perf_timer_stop ();
+    return cairo_perf_timer_elapsed ();
+}
+
+cairo_bool_t
+composite_checker_enabled (cairo_perf_t *perf)
+{
+    return cairo_perf_can_run (perf, "composite-checker", NULL);
+}
+
+void
+composite_checker (cairo_perf_t *perf,
+                   cairo_t      *cr,
+                   int           width,
+                   int           height)
+{
+    cairo_surface_t *image;
+
+    /* Create the checker pattern. We don't actually need to draw
+     * anything on it since that wouldn't affect performance.
+     */
+    image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+                                        PAT_SIZE,
+                                        PAT_SIZE);
+    checkerboard = cairo_pattern_create_for_surface (image);
+    cairo_pattern_set_filter (checkerboard, CAIRO_FILTER_NEAREST);
+    cairo_pattern_set_extend (checkerboard, CAIRO_EXTEND_REPEAT);
+    cairo_surface_destroy (image);
+
+    /* Create the image source pattern. Again we use the NEAREST
+     * filtering which should be fastest.
+    */
+    image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+                                        SRC_SIZE,
+                                        SRC_SIZE);
+    src_pattern = cairo_pattern_create_for_surface (image);
+    cairo_pattern_set_filter (src_pattern, CAIRO_FILTER_NEAREST);
+    cairo_surface_destroy (image);
+
+    cairo_perf_run (perf, "composite-checker", do_composite_checker, NULL);
+
+    cairo_pattern_destroy (checkerboard);
+    cairo_pattern_destroy (src_pattern);
+}