1 files changed, 69 insertions, 0 deletions
diff --git a/recipes/gtk+/pixops-test/pixops-test.c b/recipes/gtk+/pixops-test/pixops-test.c
new file mode 100644
index 0000000000..f8906dfc42
--- /dev/null
+++ b/recipes/gtk+/pixops-test/pixops-test.c
@@ -0,0 +1,69 @@
+#include <gtk/gtk.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <stdlib.h>
+
+static gdouble total_seconds = 0.0;
+
+/* randomly colour each pixel */
+static void
+fill_pixbuf (GdkPixbuf *buf)
+{
+	int width, height, rowstride, n_channels;
+	int x,y,n;
+	guchar *pixels, *p;
+
+	g_assert (gdk_pixbuf_get_bits_per_sample (buf) == 8);
+
+	n_channels = gdk_pixbuf_get_n_channels (buf);
+	width = gdk_pixbuf_get_width (buf);
+	height = gdk_pixbuf_get_height (buf);
+	rowstride = gdk_pixbuf_get_rowstride (buf);
+	pixels = gdk_pixbuf_get_pixels (buf);
+
+	for (x=0; x<width; x++) {
+		for (y=0; y<height; y++) {
+			p = pixels + (y*rowstride) + (x*n_channels);
+			for (n=0; n<n_channels; n++) {
+				p[n] = (random()*255)/RAND_MAX;
+			}
+		}
+	}
+}
+
+int
+main (int argc, char **argv)
+{
+        GTimer *timer;
+	int i,j;
+
+        gtk_init (&argc, &argv);
+
+
+	GdkPixbuf *pixbuf[4], *ret;
+	pixbuf[0] = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, 400, 600);
+	pixbuf[1] = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, 40, 60);
+	pixbuf[2] = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, 400, 600);
+	pixbuf[3] = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, 40, 60);
+
+	for (j=0; j<4; j++)
+		fill_pixbuf (pixbuf[j]);
+
+	timer = g_timer_new ();
+	g_timer_start (timer);
+
+	for (i = 0; i < 10 ; i++) {
+		for (j=0; j<4; j++) {
+			ret = gdk_pixbuf_scale_simple (pixbuf[j], 700, 900, GDK_INTERP_BILINEAR);
+			gdk_pixbuf_unref (ret);
+			ret = gdk_pixbuf_scale_simple (pixbuf[j], 20, 50, GDK_INTERP_BILINEAR);
+			gdk_pixbuf_unref (ret);
+		}
+	}
+	g_timer_stop (timer);
+
+	total_seconds += g_timer_elapsed (timer, NULL);
+        
+        g_print ("time spent scaling (in seconds): %lf\n",  total_seconds );
+
+        return 0;
+}