Attachment 455 Details for Bug 839 – The benchmark

The benchmark

render-benchmark.c (text/x-csrc), 5.21 KB, created by Søren Sandmann Pedersen on 2004-07-08 10:38:04 UTC

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Filename:

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Creator: Søren Sandmann Pedersen

Created: 2004-07-08 10:38:04 UTC

Size: 5.21 KB

patch

obsolete

>#include <gtk/gtk.h>
>#include <gdk/gdkx.h>
>
>GdkDrawable *drawable;
>PangoLayout *layout;
>GdkPixbuf *pixbuf;
>
>const GdkColor white = { 0, 65535, 65535, 65535 };
>const GdkColor black = { 0, 0, 0, 0 };
>
>typedef void (* Callback) (guint32 time,
>			   gpointer data);
>
>static GQueue *callbacks;
>
>static gboolean
>on_property (GdkWindow *window, GdkEventProperty *event)
>{
>    if (event->atom == gdk_atom_intern ("GDK_TIMESTAMP_PROP", TRUE))
>    {
>	Callback callback = g_queue_pop_head (callbacks);
>	gpointer data = g_queue_pop_head (callbacks);
>	
>	callback (event->time, data);
>    }
>    
>    return FALSE;
>}
>
>void
>get_time (GdkWindow *window, Callback cb, gpointer data)
>{
>    Display *xdisplay;
>    Window   xwindow;
>    Atom timestamp_prop_atom;
>    guchar c = 'a';
>    
>    g_queue_push_tail (callbacks, cb);
>    g_queue_push_tail (callbacks, data);
>    
>    xdisplay = GDK_WINDOW_XDISPLAY (window);
>    xwindow = GDK_WINDOW_XWINDOW (window);
>    timestamp_prop_atom = 
>	gdk_x11_get_xatom_by_name_for_display (gdk_display_get_default(),
>					       "GDK_TIMESTAMP_PROP");
>    
>    XChangeProperty (xdisplay, xwindow, timestamp_prop_atom,
>		     timestamp_prop_atom,
>		     8, PropModeReplace, &c, 1);
>}
>
>static double avg_rect_time = 0.0;
>static double avg_glyphs_time = 0.0;
>
>typedef enum {
>    EXPECT_BEFORE,
>    EXPECT_AFTER_RECT,
>    EXPECT_AFTER_GLYPHS
>} State;
>
>static guint32 before;
>static guint32 after_rect;
>static guint32 after_glyphs;
>static guint32 n_times;
>
>static guint32 worst_rect;
>
>State state = EXPECT_BEFORE;
>
>static void
>check_avg (guint32 now, gpointer data)
>{
>    int rect;
>    
>    switch (state)
>    {
>    case EXPECT_BEFORE:
>	before = now;
>	state = EXPECT_AFTER_RECT;
>	break;
>
>    case EXPECT_AFTER_RECT:
>	after_rect = now;
>	state = EXPECT_AFTER_GLYPHS;
>	break;
>
>    case EXPECT_AFTER_GLYPHS:
>	after_glyphs = now;
>	state = EXPECT_BEFORE;
>
>	if (n_times)
>	{
>	    avg_rect_time *= n_times;
>	    avg_glyphs_time *= n_times;
>	}
>
>	rect = (after_rect - before);
>	worst_rect  = MAX (worst_rect, rect);
>	avg_rect_time += rect;
>	avg_glyphs_time += (after_glyphs - after_rect);
>
>	n_times++;
>	    
>	if (n_times)
>	{
>	    avg_rect_time /= n_times;
>	    avg_glyphs_time /= n_times;
>	}
>
>	break;
>    }
>}
>
>static void
>fill (GdkDrawable *drawable,
>      GdkGC *gc)
>{
>    gdk_draw_rectangle (drawable, gc, TRUE, 0, 0, -1, -1);
>}
>
>static void
>show (GdkDrawable *drawable,
>      GdkGC *gc)
>{
>    const gboolean text = FALSE;
>
>    if (text)
>	gdk_draw_layout (drawable, gc, 10, 15, layout);
>    else
>	gdk_draw_pixbuf (drawable, NULL, pixbuf,
>			 0, 0, 10, 10, -1, -1, GDK_RGB_DITHER_NONE, 0, 0);
>
>}
>
>static gboolean
>test_depth (gpointer data)
>{
>    int j;
>    gdouble start_time;
>    GdkPixmap *pixmap = gdk_pixmap_new (drawable, 512, 400, -1);
>    GTimer *timer = g_timer_new ();
>    
>    GdkGC *gc = gdk_gc_new (pixmap);
>    GdkGC *gc2 = gdk_gc_new (pixmap);
>    
>    gdk_gc_set_rgb_fg_color (gc, &white);
>    gdk_gc_set_rgb_fg_color (gc2, &black);
>
>    start_time = g_timer_elapsed (timer, NULL);
>
>    for (j = 0; j < 10000; ++j)
>    {
>	get_time (GDK_WINDOW (drawable), check_avg, NULL);
>
>	fill (pixmap, gc);
>	
>	get_time (GDK_WINDOW (drawable), check_avg, NULL);
>
>	show (pixmap, gc2);
>	
>	get_time (GDK_WINDOW (drawable), check_avg, NULL);
>    }
>
>    g_print ("total time: %f\n", g_timer_elapsed (timer, NULL) - start_time);
>
>    while (!g_queue_is_empty (callbacks))
>	g_main_iteration (TRUE);
>
>    g_print ("average rect time: %f\n", avg_rect_time);
>    g_print ("worst rect: %d\n", worst_rect);
>    g_print ("average glyph time: %f\n", avg_glyphs_time);
>    
>    gtk_main_quit ();
>    
>    return FALSE;
>}
>
>static gboolean
>on_expose (GtkWidget *w)
>{
>    GdkGC *gc = gdk_gc_new (w->window);
>
>    gdk_gc_set_rgb_fg_color (gc, &white);
>
>    fill (w->window, gc);
>
>    gdk_gc_set_rgb_fg_color (gc, &black);
>
>    show (w->window, gc);
>
>    g_object_unref (gc);
>    
>    return TRUE;
>}
>
>int
>main (int argc, char **argv)
>{
>    const gboolean disp = FALSE;
>    gtk_init (&argc, &argv);
>
>    GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
>    
>    gtk_widget_realize (window);
>
>    drawable = window->window;
>
>    GError *err = NULL;
>    
>    layout = gtk_widget_create_pango_layout (
>	window, g_convert (
>	    "Ællingemoderen med hele sin Familie kom frem nede ved Canalen: "
>	    "pladsk! sprang hun i Vandet: \"rap! rap!\" sagde hun og den ene "
>	    "Ælling plumpede ud efter den anden; Vandet slog dem over "
>	    "Hovedet, men de kom strax op igjen og fløde saa deiligt; "
>	    "Benene gik af sig selv, og alle vare de ude, selv den stygge, "
>	    "graae Unge svømmede med.", -1,
>	    "UTF-8", "LATIN1", NULL, NULL, &err));
>
>    pango_layout_set_width (layout, 500 * PANGO_SCALE);
>
>    pixbuf = gdk_pixbuf_new_from_file ("redhat-starthere.png", NULL);
>    
>    PangoFontDescription *desc =
>	pango_font_description_from_string ("Bitstream Vera Serif 14");
>    
>    pango_layout_set_font_description (layout, desc);
>
>    if (disp)
>    {
>	g_signal_connect (window, "expose_event", G_CALLBACK (on_expose), NULL);
>	
>	gtk_widget_show (window);
>    }
>    else
>    {
>
>	g_signal_connect (window, "property_notify_event", G_CALLBACK (on_property), NULL);
>	
>	g_idle_add (test_depth, GINT_TO_POINTER (32));
>	
>	gtk_widget_add_events (window, GDK_PROPERTY_NOTIFY);
>    
>	callbacks = g_queue_new ();
>    }
>    
>    gtk_main();
>
>    return 0;
>}

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