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#!/usr/bin/env python
# Copyright (C) 2012, One Laptop Per Child
# Author, Gonzalo Odiard <gonzalo@laptop.org>
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import GObject
from gi.repository import PangoCairo
from gi.repository import Pango
import cairo
import math
import random
import time
import os
import logging
colors = [(1.0, 0.0, 0.0, 1.0), (0.0, 1.0, 0.0, 1.0), (0.0, 0.0, 1.0, 1.0),
(1.0, 1.0, 0.0, 1.0), (1.0, 0.0, 1.0, 1.0), (0.0, 1.0, 1.0, 1.0)]
test_text = 'Hello World!'
png_test_file = '/usr/share/icons/gnome/256x256/emotes/face-cool.png'
cant_objects = 100
POWERD_INHIBIT_DIR = '/var/run/powerd-inhibit-suspend'
class CairoTest(Gtk.DrawingArea):
tests = ['box', 'circle', 'text', 'bitmap', 'bitmap_ops', 'gradient', \
'bitmap_sim', 'bitmap_ops_sim']
def __init__(self, repeat=1):
self._test_number = 0
self._test = CairoTest.tests[self._test_number]
self._repeat = repeat
self._count = 1
self._results = {}
self._im_surface = cairo.ImageSurface.create_from_png(png_test_file)
self._im_surface_similar = None
self._im_width = self._im_surface.get_width()
super(CairoTest, self).__init__()
# init random values
random.seed()
self._random_color_a = []
self._random_color_b = []
self._random_width = []
self._random_x = []
self._random_y = []
self._random_font_size = []
self._random_angle = []
for n in range(cant_objects):
self._random_color_a.append(random.randint(0, 5))
self._random_color_b.append(random.randint(0, 5))
self._random_width.append(random.randint(30, 100))
self._random_x.append(random.randint(1, Gdk.Screen.width()))
self._random_y.append(random.randint(1, Gdk.Screen.height()))
self._random_font_size.append(random.randint(12, 40))
self._random_angle.append(2 * math.pi * random.random())
self._inhibit_suspend()
self.connect('draw', self.__draw_cb)
GObject.timeout_add(1000, self._change_test)
def map_cb(widget):
cursor = Gdk.Cursor.new(Gdk.CursorType.BLANK_CURSOR)
self.get_window().set_cursor(cursor)
self.connect('map', map_cb)
def __draw_cb(self, widget, ctx):
if self._im_surface_similar == None:
self._im_surface_similar = ctx.get_target().create_similar(
cairo.CONTENT_COLOR_ALPHA, self._im_width, self._im_width)
ctx_similar = cairo.Context(self._im_surface_similar)
ctx_similar.set_source_surface(self._im_surface)
ctx_similar.paint()
timeini = time.time()
for n in range(cant_objects):
ctx.set_source_rgba(*colors[self._random_color_a[n]])
x = self._random_x[n]
y = self._random_y[n]
width = self._random_width[n]
if self._test == 'circle':
ctx.arc(x, y, width, 0., 2 * math.pi)
if self._test == 'box':
ctx.rectangle(x, y, width, width)
if self._test == 'text':
pango_layout = PangoCairo.create_layout(ctx)
fd = Pango.FontDescription('Sans %d' %
self._random_font_size[n])
pango_layout.set_font_description(fd)
pango_layout.set_text(unicode(test_text),
len(unicode(test_text)))
ctx.move_to(x, y)
PangoCairo.show_layout(ctx, pango_layout)
ctx.stroke()
if self._test == 'bitmap':
ctx.save()
ctx.translate(x, y)
ctx.set_source_surface(self._im_surface)
ctx.paint()
ctx.restore()
if self._test == 'bitmap_ops':
ctx.save()
ctx.translate(x, y)
scale = width / float(self._im_width)
angle = self._random_angle[n]
ctx.scale(scale, scale)
ctx.rotate(angle)
ctx.set_source_surface(self._im_surface)
ctx.paint()
ctx.restore()
if self._test == 'gradient':
ctx.rectangle(x, y, width, width)
pat = cairo.LinearGradient(x, y, x + width, y + width)
r, g, b, a = colors[self._random_color_a[n]]
pat.add_color_stop_rgba(0, r, g, b, a)
r, g, b, a = colors[self._random_color_b[n]]
pat.add_color_stop_rgba(1, r, g, b, a)
ctx.set_source(pat)
if self._test == 'bitmap_sim':
ctx.save()
ctx.translate(x, y)
ctx.set_source_surface(self._im_surface_similar)
ctx.paint()
ctx.restore()
if self._test == 'bitmap_ops_sim':
ctx.save()
ctx.translate(x, y)
scale = width / float(self._im_width)
angle = self._random_angle[n]
ctx.scale(scale, scale)
ctx.rotate(angle)
ctx.set_source_surface(self._im_surface_similar)
ctx.paint()
ctx.restore()
ctx.fill()
#logging.error("Time test %s = %f s.", self._test,
# (time.time() - timeini))
self._add_result(self._test, (time.time() - timeini))
def _add_result(self, test, time):
if not test in self._results:
self._results[test] = []
self._results[test].append(time)
def _print_results(self):
logging.error('RESULTS: %s', self._results)
logging.error('REPEAT %d TIMES', self._count)
for test in CairoTest.tests:
if test in self._results:
values = self._results[test]
logging.error('%-20s average = %f, max = %f, min = %f',
test, sum(values) / len(values), max(values), min(values))
def _change_test(self):
if self._test_number < len(CairoTest.tests) - 1:
self._test_number += 1
self._test = CairoTest.tests[self._test_number]
self.queue_draw()
else:
if self._count < self._repeat:
self._count += 1
self._test_number = 0
self._test = CairoTest.tests[self._test_number]
self.queue_draw()
else:
self.quit(None)
return True
def quit(self, widget):
self._print_results()
self._inhibit_suspend()
Gtk.main_quit()
def powerd_running(self):
using_powerd = os.access(POWERD_INHIBIT_DIR, os.W_OK)
logging.error("using_powerd: %d", using_powerd)
return using_powerd
def _inhibit_suspend(self):
if self.powerd_running():
fd = open(POWERD_INHIBIT_DIR + "/%u" % os.getpid(), 'w')
logging.error("inhibit_suspend file is %s", (POWERD_INHIBIT_DIR \
+ "/%u" % os.getpid()))
fd.close()
return True
def _allow_suspend(self):
if self.powerd_running():
if os.path.exists(POWERD_INHIBIT_DIR + "/%u" % os.getpid()):
os.unlink(POWERD_INHIBIT_DIR + "/%u" % os.getpid())
logging.error("allow_suspend unlinking %s", (POWERD_INHIBIT_DIR \
+ "/%u" % os.getpid()))
return True
if __name__ == "__main__":
window = Gtk.Window()
cairo_test = CairoTest(10)
window.add(cairo_test)
window.connect("destroy", cairo_test.quit)
window.maximize()
window.show_all()
Gtk.main()
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