Attachment 15966 Details for Bug 15546 – pycairo program used to measure box performance

pycairo program used to measure box performance

box-bench.py (text/plain), 2.44 KB, created by Owen Taylor on 2008-04-16 23:15:13 UTC

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Creator: Owen Taylor

Created: 2008-04-16 23:15:13 UTC

Size: 2.44 KB

patch

obsolete

>#!/usr/bin/python
>
>from __future__ import division
>import gtk
>import gobject
>import cairo
>import sys
>import time
>from optparse import OptionParser
>
>min_period = 2.0;
>n_boxes = 10;
>size = 10;
>loops = 1000;
>
># Used to do a 1-pixel GetImage for accurate timing
>cmap = gtk.gdk.screen_get_default().get_rgb_colormap()
>pbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, 1, 1)
>
>def sync(drawable):
>    pbuf.get_from_drawable(drawable, cmap, 0, 0, 0, 0, 1, 1)
>
>def draw(window):
>    global loops
>    
>    cr = window.window.cairo_create()
>    source = cr.get_target().create_similar(cairo.CONTENT_COLOR_ALPHA, width, height)
>    
>    source_cr = cairo.Context(source)
>    source_cr.set_source_rgb(1, 0, 0)
>    source_cr.paint()
>    
>    # Create a clip region with n_boxes separate rectangles
>    for i in xrange(0, n_boxes):
>        x = i * (size + 1)
>        y = 0
>        cr.rectangle(x, y, size, size)
>
>    cr.clip()
>    cr.set_source_surface(source, 0, 0)
>    cr.get_source().set_extend(cairo.EXTEND_REPEAT)
>    cr.get_source().set_filter(cairo.FILTER_NEAREST)
>
>    before = time.time()
>    for i in xrange(0, loops):
>        cr.paint()
>    sync(window.window)
>    after = time.time()
>
>    if after - before < min_period:
>        loops *= 2
>        return False
>
>    box_count = loops * n_boxes
>    box_rate = box_count / (after - before)
>    pix_rate = box_rate * size * size
>
>    print "Rate: %d boxes in %gs = %g boxes/s %g pix/sec" % (box_count, (after - before), box_rate, pix_rate)
>
>    return False
>
>def on_expose(window, event):
>    try:
>        draw(window)
>    except KeyboardInterrupt:
>        gtk.main_quit()
>
>    return False
>    
>def on_key_press(widget, event):
>    if event.keyval in (gtk.keysyms.Escape,):
>        gtk.main_quit()
>        return True
>    
>    window.queue_draw()
>    return False
>        
>def on_idle():
>    window.queue_draw()
>    return True
>
>parser = OptionParser()
>parser.add_option("-s", "--size", type="int", help="size of boxes")
>parser.add_option("-n", "--n-boxes", type="int", help="number of boxes")
>
>parser.set_defaults(size=size, n_boxes=n_boxes)
>
>(options, args) = parser.parse_args()
>
>size = options.size
>n_boxes = options.n_boxes
>
>width = n_boxes * (size + 1) - 1
>height = size
>    
>window = gtk.Window()
>window.set_app_paintable(True)
>window.set_size_request(width, height)
>window.set_resizable(False)
>
>window.connect("expose-event", on_expose)
>window.connect("key-press-event", on_key_press)
>
>window.show()
>
>gobject.idle_add(on_idle)
>
>gtk.main()
>
>
>
>

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Attachments on bug 15546: 15964 | 15965 | 15966 | 15967

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