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#
# Copyright (C) 2016 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import sys
SVG_CANVAS_WIDTH = 1124
SVG_NODE_HEIGHT = 17
FONT_SIZE = 12
def hash_to_float(string):
return hash(string) / float(sys.maxsize)
def getLegacyColor(method):
r = 175 + int(50 * hash_to_float(reversed(method)))
g = 60 + int(180 * hash_to_float(method))
b = 60 + int(55 * hash_to_float(reversed(method)))
return (r, g, b)
def getDSOColor(method):
r = 170 + int(80 * hash_to_float(reversed(method)))
g = 180 + int(70 * hash_to_float((method)))
b = 170 + int(80 * hash_to_float(reversed(method)))
return (r, g, b)
def getHeatColor(callsite, num_samples):
r = 245 + 10 * (1 - float(callsite.num_samples) / num_samples)
g = 110 + 105 * (1 - float(callsite.num_samples) / num_samples)
b = 100
return (r, g, b)
def createSVGNode(callsite, depth, f, num_samples, height, color_scheme, nav):
x = float(callsite.offset) / float(num_samples) * SVG_CANVAS_WIDTH
y = height - (depth * SVG_NODE_HEIGHT) - SVG_NODE_HEIGHT
width = float(callsite.num_samples) / float(num_samples) * SVG_CANVAS_WIDTH
method = callsite.method.replace(">", ">").replace("<", "<")
if (width <= 0):
return
if color_scheme == "dso":
r, g, b = getDSOColor(callsite.dso)
elif color_scheme == "legacy":
r, g, b = getLegacyColor(method)
else:
r, g, b = getHeatColor(callsite, num_samples)
r_border = (r - 50)
if r_border < 0:
r_border = 0
g_border = (g - 50)
if g_border < 0:
g_border = 0
b_border = (b - 50)
if (b_border < 0):
b_border = 0
f.write(
'<g id=%d class="n" onclick="zoom(this);" onmouseenter="select(this);" nav="%s"> \n\
<title>%s | %s (%d samples: %3.2f%%)</title>\n \
<rect x="%f" y="%f" ox="%f" oy="%f" width="%f" owidth="%f" height="15.0" ofill="rgb(%d,%d,%d)" \
fill="rgb(%d,%d,%d)" style="stroke:rgb(%d,%d,%d)"/>\n \
<text x="%f" y="%f" font-size="%d" font-family="Monospace"></text>\n \
</g>\n' %
(callsite.id,
','.join(
str(x) for x in nav),
method,
callsite.dso,
callsite.num_samples,
callsite.num_samples /
float(num_samples) *
100,
x,
y,
x,
y,
width,
width,
r,
g,
b,
r,
g,
b,
r_border,
g_border,
b_border,
x +
2,
y +
12,
FONT_SIZE))
def renderSVGNodes(flamegraph, depth, f, num_samples, height, color_scheme):
for i, callsite in enumerate(flamegraph.callsites):
# Prebuild navigation target for wasd
if i == 0:
left_index = 0
else:
left_index = flamegraph.callsites[i - 1].id
if i == len(flamegraph.callsites) - 1:
right_index = 0
else:
right_index = flamegraph.callsites[i + 1].id
up_index = 0
max_up = 0
for upcallsite in callsite.callsites:
if upcallsite.num_samples > max_up:
max_up = upcallsite.num_samples
up_index = upcallsite.id
# up, left, down, right
nav = [up_index, left_index, flamegraph.id, right_index]
createSVGNode(callsite, depth, f, num_samples, height, color_scheme, nav)
# Recurse down
renderSVGNodes(callsite, depth + 1, f, num_samples, height, color_scheme)
def renderSearchNode(f):
f.write(
'<rect id="search_rect" style="stroke:rgb(0,0,0);" onclick="search(this);" class="t" rx="10" ry="10" \
x="%d" y="10" width="80" height="30" fill="rgb(255,255,255)""/> \
<text id="search_text" class="t" x="%d" y="30" onclick="search(this);">Search</text>\n' %
(SVG_CANVAS_WIDTH - 95, SVG_CANVAS_WIDTH - 80))
def renderUnzoomNode(f):
f.write(
'<rect id="zoom_rect" style="display:none;stroke:rgb(0,0,0);" class="t" onclick="unzoom(this);" \
rx="10" ry="10" x="10" y="10" width="80" height="30" fill="rgb(255,255,255)"/> \
<text id="zoom_text" style="display:none;" class="t" x="19" y="30" \
onclick="unzoom(this);">Zoom out</text>\n'
)
def renderInfoNode(f):
f.write(
'<clipPath id="info_clip_path"> <rect id="info_rect" style="stroke:rgb(0,0,0);" \
rx="10" ry="10" x="120" y="10" width="%d" height="30" fill="rgb(255,255,255)"/></clipPath> \
<rect id="info_rect" style="stroke:rgb(0,0,0);" \
rx="10" ry="10" x="120" y="10" width="%d" height="30" fill="rgb(255,255,255)"/> \
<text clip-path="url(#info_clip_path)" id="info_text" x="128" y="30"></text>\n' % (SVG_CANVAS_WIDTH - 335, SVG_CANVAS_WIDTH - 325)
)
def renderPercentNode(f):
f.write(
'<rect id="percent_rect" style="stroke:rgb(0,0,0);" \
rx="10" ry="10" x="%d" y="10" width="82" height="30" fill="rgb(255,255,255)"/> \
<text id="percent_text" text-anchor="end" x="%d" y="30">100.00%%</text>\n' % (SVG_CANVAS_WIDTH - (95 * 2), SVG_CANVAS_WIDTH - (125))
)
def renderSVG(flamegraph, f, color_scheme, width):
global SVG_CANVAS_WIDTH
SVG_CANVAS_WIDTH = width
height = (flamegraph.get_max_depth() + 2) * SVG_NODE_HEIGHT
f.write('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" \
width="%d" height="%d" style="border: 1px solid black;" \
onload="adjust_text_size(this);" rootid="%d">\n' % (SVG_CANVAS_WIDTH, height, flamegraph.callsites[0].id))
f.write('<defs > <linearGradient id="background_gradiant" y1="0" y2="1" x1="0" x2="0" > \
<stop stop-color="#eeeeee" offset="5%" /> <stop stop-color="#efefb1" offset="90%" /> </linearGradient> </defs>')
f.write('<rect x="0.0" y="0" width="%d" height="%d" fill="url(#background_gradiant)" />' %
(SVG_CANVAS_WIDTH, height))
renderSVGNodes(flamegraph, 0, f, flamegraph.num_samples, height, color_scheme)
renderSearchNode(f)
renderUnzoomNode(f)
renderInfoNode(f)
renderPercentNode(f)
f.write("</svg><br/>\n\n")
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