Add a test of an animated resizing window

Add a test of a window with an animated size and contents. The
test accepts load factor command line argument to see how things
work as the drawing of the content requires more GPU resources.

https://bugzilla.gnome.org/show_bug.cgi?id=685460

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 19939918694c7d04b1a6ad9f88f944f159e48343..7917905090eee7b68d3775786abb955d4d0cc486 100644 (file)
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -25,6 +25,7 @@ testsocket_programs = testsocket testsocket_child
 endif
 
 noinst_PROGRAMS =  $(TEST_PROGS)       \
+       animated-resizing               \
        simple                          \
        flicker                         \
        print-editor                    \
@@ -149,6 +150,7 @@ endif
 
 endif
 
+animated_resizing_DEPENDENCIES = $(TEST_DEPS)
 flicker_DEPENDENCIES = $(TEST_DEPS)
 simple_DEPENDENCIES = $(TEST_DEPS)
 print_editor_DEPENDENCIES = $(TEST_DEPS)

diff --git a/tests/animated-resizing.c b/tests/animated-resizing.c
new file mode 100644 (file)
index 0000000..bf36551
--- /dev/null
+++ b/tests/animated-resizing.c
@@ -0,0 +1,197 @@
+/* -*- mode: C; c-basic-offset: 2; indent-tabs-mode: nil; -*- */
+
+#include <gtk/gtk.h>
+#include <math.h>
+
+#define WIDTH 600
+#define HEIGHT 600
+#define WINDOW_SIZE_JITTER 200
+#define CYCLE_TIME 5.
+
+static GtkWidget *window;
+static int window_width = WIDTH, window_height = HEIGHT;
+
+static double angle;
+static int frames_since_last_print = 0;
+
+static double load_factor = 1.0;
+static double cb_no_resize = FALSE;
+
+static cairo_surface_t *source_surface;
+
+static void
+ensure_resources(cairo_surface_t *target)
+{
+  cairo_t *cr;
+  int i, j;
+
+  if (source_surface != NULL)
+    return;
+
+  source_surface = cairo_surface_create_similar (target, CAIRO_CONTENT_COLOR_ALPHA, 2048, 2048);
+  cr = cairo_create(source_surface);
+
+  cairo_save(cr);
+  cairo_set_source_rgba(cr, 0, 0, 0, 0);
+  cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+  cairo_paint(cr);
+  cairo_restore(cr);
+
+  cairo_set_line_width(cr, 1.0);
+
+  for (j = 0; j < 16; j++)
+    for (i = 0; i < 16; i++)
+      {
+        cairo_set_source_rgba(cr,
+                              ((i * 41) % 16) / 15.,
+                              ((i * 31) % 16) / 15.,
+                              ((i * 23) % 16) / 15.,
+                              0.25);
+        cairo_arc(cr,
+                  i * 128 + 64, j * 128 + 64,
+                  64 - 0.5, 0, 2 * M_PI);
+        cairo_fill_preserve(cr);
+        cairo_set_source_rgba(cr,
+                              ((i * 41) % 16) / 15.,
+                              ((i * 31) % 16) / 15.,
+                              ((i * 23) % 16) / 15.,
+                              1.0);
+        cairo_stroke(cr);
+      }
+}
+
+static void
+on_window_draw (GtkWidget *widget,
+                cairo_t   *cr)
+
+{
+  GRand *rand = g_rand_new_with_seed(0);
+  int i;
+  int width, height;
+
+  width = gtk_widget_get_allocated_width (widget);
+  height = gtk_widget_get_allocated_height (widget);
+
+  ensure_resources (cairo_get_target (cr));
+
+  cairo_set_source_rgb(cr, 1, 1, 1);
+  cairo_paint(cr);
+
+  cairo_set_source_rgb(cr, 0, 0, 0);
+  cairo_set_line_width(cr, 1.0);
+  cairo_rectangle (cr, 0.5, 0.5, width - 1, height - 1);
+  cairo_stroke (cr);
+
+  for(i = 0; i < load_factor * 150; i++)
+    {
+      int source = g_rand_int_range(rand, 0, 255);
+      double phi = g_rand_double_range(rand, 0, 2 * M_PI) + angle;
+      double r = g_rand_double_range(rand, 0, width / 2 - 64);
+      int x, y;
+
+      int source_x = (source % 16) * 128;
+      int source_y = (source / 16) * 128;
+
+      x = round(width / 2 + r * cos(phi) - 64);
+      y = round(height / 2 - r * sin(phi) - 64);
+
+      cairo_set_source_surface(cr, source_surface,
+                               x - source_x, y - source_y);
+      cairo_rectangle(cr, x, y, 128, 128);
+      cairo_fill(cr);
+    }
+
+  g_rand_free(rand);
+}
+
+static void
+on_frame (GtkTimeline *timeline,
+          double       progress)
+{
+  int jitter;
+  double current_time;
+  static double last_print_time = 0;
+
+  current_time = g_get_monotonic_time () / 1000000.;
+  if (current_time >= last_print_time + 5)
+    {
+      if (frames_since_last_print != 0)
+        {
+          g_print ("%g\n", frames_since_last_print / (current_time - last_print_time));
+          frames_since_last_print = 0;
+        }
+
+      last_print_time = current_time;
+    }
+  frames_since_last_print++;
+
+  angle = 2 * M_PI * progress;
+  jitter = WINDOW_SIZE_JITTER * sin(angle);
+
+  if (!cb_no_resize)
+    {
+      window_width = WIDTH + jitter;
+      window_height = HEIGHT + jitter;
+    }
+
+  gtk_window_resize (GTK_WINDOW (window),
+                     window_width, window_height);
+
+  gtk_widget_queue_draw (window);
+}
+
+static GOptionEntry options[] = {
+  { "factor", 'f', 0, G_OPTION_ARG_DOUBLE, &load_factor, "Load factor", "FACTOR" },
+  { "no-resize", 'n', 0, G_OPTION_ARG_NONE, &cb_no_resize, "No Resize", NULL },
+  { NULL }
+};
+
+int
+main(int argc, char **argv)
+{
+  GError *error = NULL;
+  GdkScreen *screen;
+  GdkRectangle monitor_bounds;
+  GtkTimeline *timeline;
+
+  if (!gtk_init_with_args (&argc, &argv, "",
+                           options, NULL, NULL))
+    {
+      g_printerr ("Option parsing failed: %s", error->message);
+      return 1;
+    }
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_keep_above (GTK_WINDOW (window), TRUE);
+  gtk_window_set_gravity (GTK_WINDOW (window), GDK_GRAVITY_CENTER);
+  gtk_widget_set_app_paintable (window, TRUE);
+
+  g_signal_connect (window, "draw",
+                    G_CALLBACK (on_window_draw), NULL);
+  g_signal_connect (window, "destroy",
+                    G_CALLBACK (gtk_main_quit), NULL);
+
+  timeline = gtk_timeline_new (window, CYCLE_TIME * 1000);
+  gtk_timeline_set_loop (timeline, TRUE);
+  gtk_timeline_set_progress_type (timeline, GTK_TIMELINE_PROGRESS_LINEAR);
+
+  g_signal_connect (timeline, "frame",
+                    G_CALLBACK (on_frame), NULL);
+  on_frame (timeline, 0.);
+  gtk_timeline_start (timeline);
+
+  screen = gtk_widget_get_screen (window);
+  gdk_screen_get_monitor_geometry (screen,
+                                   gdk_screen_get_primary_monitor (screen),
+                                   &monitor_bounds);
+
+  gtk_window_move (GTK_WINDOW (window),
+                   monitor_bounds.x + (monitor_bounds.width - window_width) / 2,
+                   monitor_bounds.y + (monitor_bounds.height - window_height) / 2);
+
+  gtk_widget_show (window);
+
+  gtk_main ();
+
+  return 0;
+}