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# libavg - Media Playback Engine.
# Copyright (C) 2003-2014 Ulrich von Zadow
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Current versions can be found at www.libavg.de
import math
import time
from libavg import avg, player, Point2D
class Graph(avg.DivNode):
def __init__(self, title='', getValue=None, parent=None, **kwargs):
super(Graph, self).__init__(**kwargs)
self.registerInstance(self, parent)
self._getValue = getValue
self._xSkip = 2
self._curUsage = 0
self.sensitive = False
avg.RectNode(parent=self, strokewidth=0, fillopacity=0.6, fillcolor="FFFFFF",
size=self.size)
self._textNode0 = avg.WordsNode(parent=self, x=10, y=self.size.y - 22,
color="000080")
self._textNode1 = avg.WordsNode(parent=self, x=10, y=self.size.y - 39,
color="000080")
self._maxLineNode = avg.PolyLineNode(parent=self, color="880000")
self._lineNode = avg.PolyLineNode(parent=self, color="008000")
self.__graphText = avg.WordsNode(parent=self, x=10, y=0, color="000080")
self.__graphText.text = title
self._setup()
def _setup(self):
raise RuntimeError('Please overload _setup() function')
class AveragingGraph(Graph):
def __init__(self, title='', getValue=None, parent=None, **kwargs):
super(AveragingGraph, self).__init__(title, getValue, parent, **kwargs)
self.registerInstance(self, None)
def unlink(self, kill):
player.clearInterval(self.__interval)
self.__interval = None
super(AveragingGraph, self).unlink(kill)
def _setup(self):
self.__interval = player.setInterval(1000, self._nextMemSample)
self.__numSamples = 0
self._usage = [0]
self._maxUsage = [0]
self._minutesUsage = [0]
self._minutesMaxUsage = [0]
self._nextMemSample()
def _nextMemSample(self):
curUsage = self._getValue()
self._usage.append(curUsage)
maxUsage = self._maxUsage[-1]
if curUsage > maxUsage:
maxUsage = curUsage
lastMaxChangeTime = time.time()
self._textNode1.text = ("Last increase in maximum: "
+ time.strftime("%d.%m.%Y %H:%M:%S",
time.localtime(lastMaxChangeTime)))
self._maxUsage.append(maxUsage)
self.__numSamples += 1
if self.__numSamples % 60 == 0:
lastMinuteAverage = sum(self._usage[-60:]) / 60
self._minutesUsage.append(lastMinuteAverage)
self._minutesMaxUsage.append(maxUsage)
if self.__numSamples < 60 * 60:
self._plotLine(self._usage, self._lineNode, maxUsage)
self._plotLine(self._maxUsage, self._maxLineNode, maxUsage)
else:
self._plotLine(self._minutesUsage, self._lineNode, maxUsage)
self._plotLine(self._minutesMaxUsage, self._maxLineNode, maxUsage)
self._textNode0.text = ("Max. memory usage: %(size).2f MB" %
{"size": maxUsage / (1024 * 1024.0)})
if self.__numSamples % 3600 == 0:
del self._usage[0:3600]
del self._maxUsage[0:3599]
if self.__numSamples == 604800:
self.__numSamples == 0
def _plotLine(self, data, node, maxy):
yfactor = (self.size.y - 10.0) / float(maxy)
xfactor = (self.size.x - 10.0) / float(len(data) - 1)
node.pos = [(pos[0] * xfactor + 10, (maxy - pos[1]) * yfactor + 10.0)
for pos in enumerate(data)]
class SlidingGraph(Graph):
def __init__(self, title='', getValue=None, limit=120.0, parent=None, **kwargs):
super(SlidingGraph, self).__init__(title, getValue, parent, **kwargs)
self.registerInstance(self, None)
self._limitValue = float(limit)
def _setup(self):
self.__frameHandlerID = player.subscribe(avg.Player.ON_FRAME,
self._nextFrameTimeSample)
self._numSamples = 0
self._lastCurUsage = 0
self._maxFrameTime = 0
self._values = []
def _nextFrameTimeSample(self):
val = self._frameTimeSample()
self._appendValue(val)
self._numSamples += 1
def _appendValue(self, value):
maxValue = min(self._limitValue, value)
y = self.height - (self.height * (maxValue / self._limitValue))
y = max(0, y)
numValues = int(self.width / self._xSkip)
self._values = (self._values + [y])[-numValues:]
self._plotGraph()
def _frameTimeSample(self):
frameTime = self._getValue()
diff = frameTime - self._lastCurUsage
if self._numSamples < 2:
self._maxFrameTime = 0
if diff > self._maxFrameTime:
lastMaxChangeTime = time.time()
self._maxFrameTime = diff
self._textNode0.text = ("Max FrameTime: %.f" % self._maxFrameTime + " ms" +
" Time: " + time.strftime("%d.%m.%Y %H:%M:%S",
time.localtime(lastMaxChangeTime)))
self._lastCurUsage = frameTime
self._textNode1.text = ("Current FrameTime: %.f" % diff + " ms")
return diff
def _plotGraph(self):
self._lineNode.pos = self._getCoords()
def _getCoords(self):
return zip(xrange(0, len(self._values) * self._xSkip, self._xSkip), self._values)
class BinBar(avg.DivNode):
def __init__(self, label, parent=None, **kwargs):
super(BinBar, self).__init__(**kwargs)
self.registerInstance(self, parent)
avg.WordsNode(text=label, fontsize=8, alignment='center',
pos=(self.size.x / 2, self.size.y - 12), parent=self)
self._vbar = avg.RectNode(opacity=0, fillopacity=0.4,
fillcolor='ff0000', parent=self)
self.update(0)
def update(self, value):
value = min(max(value, 0), 1)
height = (self.size.y - 15) * value
self._vbar.size = (self.size.x - 2, height)
self._vbar.pos = (1, self.size.y - height - 12)
class BinsGraph(avg.DivNode):
def __init__(self, binsThresholds, parent=None, **kwargs):
super(BinsGraph, self).__init__(**kwargs)
self.registerInstance(self, parent)
avg.RectNode(size=self.size, parent=self)
colWidth = self.size.x / len(binsThresholds)
self._binBars = [BinBar(str(int(thr)),
pos=(idx * colWidth, 0),
size=(colWidth, self.size.y),
parent=self)
for idx, thr in enumerate(binsThresholds)]
def update(self, values):
s = sum(values)
for binBar, value in zip(self._binBars, values):
normValue = float(value) / s
logValue = math.log10(normValue * 9 + 1) if normValue != 0 else 0
binBar.update(logValue)
class SlidingBinnedGraph(SlidingGraph):
def __init__(self, title='', getValue=None, limit=120.0, binsThresholds=[],
parent=None, **kwargs):
super(SlidingBinnedGraph, self).__init__(title, getValue, limit, parent, **kwargs)
if not all([isinstance(x, (int, float)) for x in binsThresholds]):
raise RuntimeError('Bins thresholds must be provided as list of numbers')
self._bins = [0] * len(binsThresholds)
self._binsThresholds = binsThresholds
self._binsGraph = BinsGraph(binsThresholds=binsThresholds,
pos=(self.size.x - 120, 5), size=(90, self.size.y - 10),
parent=self)
def _appendValue(self, value):
for i in xrange(len(self._binsThresholds) - 1, -1, -1):
if value >= self._binsThresholds[i]:
self._bins[i] += 1
break
if sum(self._bins) % 100 == 0:
self._binsGraph.update(self._bins)
super(SlidingBinnedGraph, self)._appendValue(value)
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