+++ /dev/null
-#!/usr/bin/env python
-##########################################################################
-#
-# Copyright 2011 Jose Fonseca
-# All Rights Reserved.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the 'Software'), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-#
-##########################################################################/
-
-
-import difflib
-import optparse
-import os.path
-import sys
-
-from trace import Parser
-
-try:
- import debug
-except ImportError:
- pass
-
-
-ignored_function_names = set([
- 'glGetString',
- 'glXGetClientString',
- 'glXGetCurrentDisplay',
- 'glXGetProcAddress',
- 'glXGetProcAddressARB',
- 'wglGetProcAddress',
-])
-
-
-def readtrace(trace, limit=sys.maxint):
- calls = []
- parser = Parser()
- parser.open(trace)
- call = parser.parse_call()
- while call and len(calls) < limit:
- hash(call)
- if call.sig.name not in ignored_function_names:
- calls.append(call)
- call = parser.parse_call()
- return calls
-
-
-class SDiffer:
-
- def __init__(self, a, b):
- self.a = a
- self.b = b
-
- def diff(self):
- matcher = difflib.SequenceMatcher(None, self.a, self.b)
- for tag, alo, ahi, blo, bhi in matcher.get_opcodes():
- if tag == 'replace':
- self.replace(alo, ahi, blo, bhi)
- elif tag == 'delete':
- self.delete(alo, ahi)
- elif tag == 'insert':
- self.insert(blo, bhi)
- elif tag == 'equal':
- self.equal(alo, ahi)
- else:
- raise ValueError, 'unknown tag %s' % (tag,)
-
- def replace(self, alo, ahi, blo, bhi):
- assert alo < ahi and blo < bhi
-
- a_names = [call.name for call in self.a[alo:ahi]]
- b_names = [call.name for call in self.b[blo:bhi]]
-
- matcher = difflib.SequenceMatcher(None, a_names, b_names)
- for tag, _alo, _ahi, _blo, _bhi in matcher.get_opcodes():
- _alo += alo
- _ahi += alo
- _blo += blo
- _bhi += blo
- if tag == 'replace':
- self.replace_dissimilar(_alo, _ahi, _blo, _bhi)
- elif tag == 'delete':
- self.delete(_alo, _ahi)
- elif tag == 'insert':
- self.insert(_blo, _bhi)
- elif tag == 'equal':
- self.replace_similar(_alo, _ahi, _blo, _bhi)
- else:
- raise ValueError, 'unknown tag %s' % (tag,)
-
- def replace_similar(self, alo, ahi, blo, bhi):
- assert alo < ahi and blo < bhi
- assert ahi - alo == bhi - blo
- for i in xrange(0, bhi - blo):
- a_call = self.a[alo + i]
- b_call = self.b[blo + i]
- assert a_call.name == b_call.name
- assert len(a_call.args) == len(b_call.args)
- sys.stdout.write(b_call.name + '(')
- sep = ''
- for j in xrange(len(b_call.args)):
- sys.stdout.write(sep)
- self.replace_value(a_call.args[j], b_call.args[j])
- sep = ', '
- sys.stdout.write(')')
- if a_call.ret is not None or b_call.ret is not None:
- sys.stdout.write(' = ')
- self.replace_value(a_call.ret, b_call.ret)
- sys.stdout.write('\n')
-
- def replace_dissimilar(self, alo, ahi, blo, bhi):
- assert alo < ahi and blo < bhi
- if bhi - blo < ahi - alo:
- first = self.insert(blo, bhi)
- second = self.delete(alo, ahi)
- else:
- first = self.delete(alo, ahi)
- second = self.insert(blo, bhi)
-
- for g in first, second:
- for line in g:
- yield line
-
- def replace_value(self, a, b):
- if b == a:
- sys.stdout.write(str(b))
- else:
- sys.stdout.write('%s -> %s' % (a, b))
-
- escape = "\33["
-
- def delete(self, alo, ahi):
- self.dump('- ' + self.escape + '9m', self.a, alo, ahi, self.escape + '0m')
-
- def insert(self, blo, bhi):
- self.dump('+ ', self.b, blo, bhi)
-
- def equal(self, alo, ahi):
- self.dump(' ' + self.escape + '2m', self.a, alo, ahi, self.escape + '0m')
-
- def dump(self, prefix, x, lo, hi, suffix=""):
- for i in xrange(lo, hi):
- sys.stdout.write(prefix + str(x[i]) + suffix + '\n')
-
-
-def main():
- global options
-
- optparser = optparse.OptionParser(
- usage='\n\t%prog <trace> <trace>',
- version='%%prog')
- optparser.add_option(
- '-d', '--tracedump', metavar='PROGRAM',
- type='string', dest='tracedump', default='tracedump',
- help='tracedump command [default: %default]')
- optparser.add_option(
- '-l', '--limit', metavar='CALLS',
- type='int', dest='limit', default=1000,
- help='limit the number of calls [default: %default]')
-
- (options, args) = optparser.parse_args(sys.argv[1:])
- if len(args) != 2:
- optparser.error("incorrect number of arguments")
-
- ref_calls = readtrace(args[0], options.limit)
- src_calls = readtrace(args[1], options.limit)
-
- differ = SDiffer(ref_calls, src_calls)
- differ.diff()
-
-
-if __name__ == '__main__':
- main()
projects / apitrace / blobdiff