benchmarks: Add simple css benchmark

benchmarks/css.c

@@ -0,0 +1,77 @@
+#include <gtk/gtk.h>
+#include "benchmark.h"
+
+/* Command line options */
+const char *profile_benchmark_name = NULL;
+static GOptionEntry options[] = {
+  { "profile", 'p', 0, G_OPTION_ARG_STRING, &profile_benchmark_name, "Benchmark name to profile using callgrind", NULL },
+  { NULL }
+};
+
+
+static void
+css_compute_benchmark (Benchmark *b,
+                       gsize      size,
+                       gpointer   user_data)
+{
+  GtkWidget **widgets = g_malloc (sizeof (GtkWidget *) * size);
+  GtkWidget *box;
+  GtkWidget *scroller;
+  GtkWidget *window;
+  GdkFrameClock *frame_clock;
+  guint i;
+
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+
+  for (i = 0; i < size; i ++)
+    {
+      widgets[i] = gtk_label_new ("foo");
+      /*widgets[i] = gtk_button_new ();*/
+      gtk_container_add (GTK_CONTAINER (box), widgets[i]);
+    }
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  scroller = gtk_scrolled_window_new (NULL, NULL);
+  gtk_container_add (GTK_CONTAINER (scroller), box);
+  gtk_container_add (GTK_CONTAINER (window), scroller);
+
+  gtk_widget_realize (window);
+  frame_clock = gtk_widget_get_frame_clock (window);
+  g_assert (frame_clock != NULL);
+
+  gtk_widget_show (window);
+  g_signal_connect (frame_clock, "layout", G_CALLBACK (gtk_main_quit), NULL);
+
+  benchmark_start (b);
+  gtk_main ();
+  benchmark_stop (b);
+
+  gtk_widget_hide (window);
+  gtk_widget_destroy (window);
+
+  g_free (widgets);
+}
+
+
+int
+main (int argc, char **argv)
+{
+  BenchmarkSuite suite;
+  GOptionContext *option_context;
+  GError *error = NULL;
+
+  option_context = g_option_context_new ("");
+  g_option_context_add_main_entries (option_context, options, NULL);
+  if (!g_option_context_parse (option_context, &argc, &argv, &error))
+    {
+      g_printerr ("Option parsing failed: %s\n", error->message);
+      return 1;
+    }
+
+  benchmark_suite_init (&suite, profile_benchmark_name);
+  gtk_init ();
+
+  benchmark_suite_add (&suite, "css compute", 10000, css_compute_benchmark, NULL);
+
+  return benchmark_suite_run (&suite);
+}

benchmarks/meson.build

@@ -2,6 +2,7 @@
 # benchmark name, optional extra sources
 gtk_benchmarks = [
   ['containers'],
+  ['css'],
 ]
 
 foreach b : gtk_benchmarks