2 ##########################################################################
4 # Copyright 2011-2012 Jose Fonseca
7 # Permission is hereby granted, free of charge, to any person obtaining a copy
8 # of this software and associated documentation files (the "Software"), to deal
9 # in the Software without restriction, including without limitation the rights
10 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 # copies of the Software, and to permit persons to whom the Software is
12 # furnished to do so, subject to the following conditions:
14 # The above copyright notice and this permission notice shall be included in
15 # all copies or substantial portions of the Software.
17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 ##########################################################################/
35 from unpickle import Unpickler, Dumper, Rebuilder
36 from highlight import ColorHighlighter, LessHighlighter
39 ignoredFunctionNames = set([
42 'glXGetCurrentDisplay',
44 'glXGetProcAddressARB',
50 '''Data-less proxy for bytearrays, to save memory.'''
52 def __init__(self, size, hash):
57 return 'blob(%u)' % self.size
59 def __eq__(self, other):
60 return self.size == other.size and self.hash == other.hash
66 class BlobReplacer(Rebuilder):
67 '''Replace blobs with proxys.'''
69 def visitByteArray(self, obj):
70 return Blob(len(obj), hash(str(obj)))
72 def visitCall(self, call):
73 call.args = map(self.visit, call.args)
74 call.ret = self.visit(call.ret)
77 class Loader(Unpickler):
79 def __init__(self, stream):
80 Unpickler.__init__(self, stream)
82 self.rebuilder = BlobReplacer()
84 def handleCall(self, call):
85 if call.functionName not in ignoredFunctionNames:
86 self.rebuilder.visitCall(call)
87 self.calls.append(call)
90 def readtrace(trace, calls):
99 stdout = subprocess.PIPE,
103 parser = Loader(p.stdout)
110 def __init__(self, a, b, highlighter, callNos = False):
113 self.highlighter = highlighter
114 self.delete_color = highlighter.red
115 self.insert_color = highlighter.green
116 self.callNos = callNos
119 self.dumper = Dumper()
122 matcher = difflib.SequenceMatcher(self.isjunk, self.a, self.b)
123 for tag, alo, ahi, blo, bhi in matcher.get_opcodes():
125 self.replace(alo, ahi, blo, bhi)
126 elif tag == 'delete':
127 self.delete(alo, ahi, blo, bhi)
128 elif tag == 'insert':
129 self.insert(alo, ahi, blo, bhi)
131 self.equal(alo, ahi, blo, bhi)
133 raise ValueError, 'unknown tag %s' % (tag,)
135 def isjunk(self, call):
136 return call.functionName == 'glGetError' and call.ret in ('GL_NO_ERROR', 0)
138 def replace(self, alo, ahi, blo, bhi):
139 assert alo < ahi and blo < bhi
141 a_names = [call.functionName for call in self.a[alo:ahi]]
142 b_names = [call.functionName for call in self.b[blo:bhi]]
144 matcher = difflib.SequenceMatcher(None, a_names, b_names)
145 for tag, _alo, _ahi, _blo, _bhi in matcher.get_opcodes():
151 self.replace_dissimilar(_alo, _ahi, _blo, _bhi)
152 elif tag == 'delete':
153 self.delete(_alo, _ahi, _blo, _bhi)
154 elif tag == 'insert':
155 self.insert(_alo, _ahi, _blo, _bhi)
157 self.replace_similar(_alo, _ahi, _blo, _bhi)
159 raise ValueError, 'unknown tag %s' % (tag,)
161 def replace_similar(self, alo, ahi, blo, bhi):
162 assert alo < ahi and blo < bhi
163 assert ahi - alo == bhi - blo
164 for i in xrange(0, bhi - blo):
165 self.highlighter.write('| ')
166 a_call = self.a[alo + i]
167 b_call = self.b[blo + i]
168 assert a_call.functionName == b_call.functionName
169 assert len(a_call.args) == len(b_call.args)
170 self.dumpCallNos(a_call.no, b_call.no)
171 self.highlighter.bold(True)
172 self.highlighter.write(b_call.functionName)
173 self.highlighter.bold(False)
174 self.highlighter.write('(')
176 for j in xrange(len(b_call.args)):
177 self.highlighter.write(sep)
178 self.replace_value(a_call.args[j], b_call.args[j])
180 self.highlighter.write(')')
181 if a_call.ret is not None or b_call.ret is not None:
182 self.highlighter.write(' = ')
183 self.replace_value(a_call.ret, b_call.ret)
184 self.highlighter.write('\n')
186 def replace_dissimilar(self, alo, ahi, blo, bhi):
187 assert alo < ahi and blo < bhi
188 if bhi - blo < ahi - alo:
189 first = self.insert(blo, bhi)
190 second = self.delete(alo, ahi)
192 first = self.delete(alo, ahi)
193 second = self.insert(blo, bhi)
195 for g in first, second:
199 def replace_value(self, a, b):
201 self.highlighter.write(self.dumper.visit(b))
203 self.highlighter.strike()
204 self.highlighter.color(self.delete_color)
205 self.highlighter.write(self.dumper.visit(a))
206 self.highlighter.normal()
207 self.highlighter.write(" ")
208 self.highlighter.color(self.insert_color)
209 self.highlighter.write(self.dumper.visit(b))
210 self.highlighter.normal()
214 def delete(self, alo, ahi, blo, bhi):
215 for i in xrange(alo, ahi):
217 self.highlighter.write('- ')
218 self.dumpCallNos(call.no, None)
219 self.highlighter.strike()
220 self.highlighter.color(self.delete_color)
223 def insert(self, alo, ahi, blo, bhi):
224 for i in xrange(blo, bhi):
226 self.highlighter.write('+ ')
227 self.dumpCallNos(None, call.no)
228 self.highlighter.color(self.insert_color)
231 def equal(self, alo, ahi, blo, bhi):
232 for i in xrange(0, bhi - blo):
233 self.highlighter.write(' ')
234 a_call = self.a[alo + i]
235 b_call = self.b[blo + i]
236 assert a_call.functionName == b_call.functionName
237 assert len(a_call.args) == len(b_call.args)
238 self.dumpCallNos(a_call.no, b_call.no)
239 self.dumpCall(b_call)
241 def dumpCallNos(self, aNo, bNo):
246 self.highlighter.write(' '*self.aSpace)
249 self.highlighter.strike()
250 self.highlighter.color(self.delete_color)
251 self.highlighter.write(str(aNo))
252 self.highlighter.normal()
253 self.aSpace = len(aStr)
254 self.highlighter.write(' ')
256 self.highlighter.write(' '*self.aSpace)
259 self.highlighter.color(self.insert_color)
260 self.highlighter.write(str(bNo))
261 self.highlighter.normal()
262 self.bSpace = len(bStr)
263 self.highlighter.write(' ')
265 def dumpCall(self, call):
266 self.highlighter.bold(True)
267 self.highlighter.write(call.functionName)
268 self.highlighter.bold(False)
269 self.highlighter.write('(' + ', '.join(itertools.imap(self.dumper.visit, call.args)) + ')')
270 if call.ret is not None:
271 self.highlighter.write(' = ' + self.dumper.visit(call.ret))
272 self.highlighter.normal()
273 self.highlighter.write('\n')
280 # Parse command line options
281 optparser = optparse.OptionParser(
282 usage='\n\t%prog <trace> <trace>',
284 optparser.add_option(
285 '-a', '--apitrace', metavar='PROGRAM',
286 type='string', dest='apitrace', default='apitrace',
287 help='apitrace command [default: %default]')
288 optparser.add_option(
289 '-c', '--calls', metavar='CALLSET',
290 type="string", dest="calls", default='*',
291 help="calls to compare [default: %default]")
292 optparser.add_option(
293 '--ref-calls', metavar='CALLSET',
294 type="string", dest="ref_calls", default=None,
295 help="calls to compare from reference trace")
296 optparser.add_option(
297 '--src-calls', metavar='CALLSET',
298 type="string", dest="src_calls", default=None,
299 help="calls to compare from source trace")
300 optparser.add_option(
303 dest="call_nos", default=False,
304 help="dump call numbers")
306 (options, args) = optparser.parse_args(sys.argv[1:])
308 optparser.error("incorrect number of arguments")
310 if options.ref_calls is None:
311 options.ref_calls = options.calls
312 if options.src_calls is None:
313 options.src_calls = options.calls
315 ref_calls = readtrace(args[0], options.ref_calls)
316 src_calls = readtrace(args[1], options.src_calls)
318 if sys.stdout.isatty():
319 highlighter = LessHighlighter()
321 highlighter = ColorHighlighter()
323 differ = SDiffer(ref_calls, src_calls, highlighter, options.call_nos)
330 if __name__ == '__main__':