pixop-test: adds new enhanced version written by Rob Taylor

1 files changed, 42 insertions, 9 deletions

diff --git a/packages/gtk+/pixops-test/pixops-test.c b/packages/gtk+/pixops-test/pixops-test.c
index 33a11263de..f8906dfc42 100644
--- a/packages/gtk+/pixops-test/pixops-test.c
+++ b/packages/gtk+/pixops-test/pixops-test.c
@@ -1,35 +1,68 @@
 #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, *ret;
-	pixbuf = gdk_pixbuf_new_from_file("/usr/share/pixop-test/gtk-logo-rgb.gif", NULL);
+	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);
 
-	int i;
-
-	for (i = 1; i <= 100 ; i++) {
-		ret = gdk_pixbuf_scale_simple (pixbuf, 800, 600, GDK_INTERP_BILINEAR);
-		ret = gdk_pixbuf_scale_simple (pixbuf, 300, 400, GDK_INTERP_BILINEAR);
+	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);
         
-        gtk_main ();
-
         g_print ("time spent scaling (in seconds): %lf\n",  total_seconds );
 
         return 0;