2 ##########################################################################
4 # Copyright 2011 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 ##########################################################################/
34 from unpickle import Unpickler
35 from highlight import LessHighlighter
38 ignoredFunctionNames = set([
41 'glXGetCurrentDisplay',
43 'glXGetProcAddressARB',
48 class Loader(Unpickler):
50 def __init__(self, stream):
51 Unpickler.__init__(self, stream)
54 def handleCall(self, call):
57 if call.functionName not in ignoredFunctionNames:
58 self.calls.append(call)
67 '--calls=' + options.calls,
70 stdout = subprocess.PIPE,
74 parser = Loader(p.stdout)
81 def __init__(self, a, b, highlighter):
84 self.highlighter = highlighter
85 self.delete_color = highlighter.red
86 self.insert_color = highlighter.green
89 matcher = difflib.SequenceMatcher(None, self.a, self.b)
90 for tag, alo, ahi, blo, bhi in matcher.get_opcodes():
92 self.replace(alo, ahi, blo, bhi)
100 raise ValueError, 'unknown tag %s' % (tag,)
102 def replace(self, alo, ahi, blo, bhi):
103 assert alo < ahi and blo < bhi
105 a_names = [call.functionName for call in self.a[alo:ahi]]
106 b_names = [call.functionName for call in self.b[blo:bhi]]
108 matcher = difflib.SequenceMatcher(None, a_names, b_names)
109 for tag, _alo, _ahi, _blo, _bhi in matcher.get_opcodes():
115 self.replace_dissimilar(_alo, _ahi, _blo, _bhi)
116 elif tag == 'delete':
117 self.delete(_alo, _ahi)
118 elif tag == 'insert':
119 self.insert(_blo, _bhi)
121 self.replace_similar(_alo, _ahi, _blo, _bhi)
123 raise ValueError, 'unknown tag %s' % (tag,)
125 def replace_similar(self, alo, ahi, blo, bhi):
126 assert alo < ahi and blo < bhi
127 assert ahi - alo == bhi - blo
128 for i in xrange(0, bhi - blo):
129 a_call = self.a[alo + i]
130 b_call = self.b[blo + i]
131 assert a_call.functionName == b_call.functionName
132 assert len(a_call.args) == len(b_call.args)
133 self.replace_prefix()
134 self.highlighter.bold(True)
135 self.highlighter.write(b_call.functionName)
136 self.highlighter.bold(False)
137 self.highlighter.write('(')
139 for j in xrange(len(b_call.args)):
140 self.highlighter.write(sep)
141 self.replace_value(a_call.args[j], b_call.args[j])
143 self.highlighter.write(')')
144 if a_call.ret is not None or b_call.ret is not None:
145 self.highlighter.write(' = ')
146 self.replace_value(a_call.ret, b_call.ret)
147 self.highlighter.write('\n')
149 def replace_dissimilar(self, alo, ahi, blo, bhi):
150 assert alo < ahi and blo < bhi
151 if bhi - blo < ahi - alo:
152 first = self.insert(blo, bhi)
153 second = self.delete(alo, ahi)
155 first = self.delete(alo, ahi)
156 second = self.insert(blo, bhi)
158 for g in first, second:
162 def replace_value(self, a, b):
164 self.highlighter.write(str(b))
166 self.highlighter.color(self.delete_color)
167 self.highlighter.write(str(a))
168 self.highlighter.normal()
169 self.highlighter.write(" -> ")
170 self.highlighter.color(self.insert_color)
171 self.highlighter.write(str(b))
172 self.highlighter.normal()
176 def delete(self, alo, ahi):
177 self.dump(self.delete_prefix, self.a, alo, ahi, self.normal_suffix)
179 def insert(self, blo, bhi):
180 self.dump(self.insert_prefix, self.b, blo, bhi, self.normal_suffix)
182 def equal(self, alo, ahi):
183 self.dump(self.equal_prefix, self.a, alo, ahi, self.normal_suffix)
185 def dump(self, prefix, x, lo, hi, suffix):
186 for i in xrange(lo, hi):
189 self.highlighter.bold(True)
190 self.highlighter.write(call.functionName)
191 self.highlighter.bold(False)
192 self.highlighter.write('(' + ', '.join(map(repr, call.args)) + ')')
193 if call.ret is not None:
194 self.highlighter.write(' = ' + repr(call.ret))
196 self.highlighter.write('\n')
198 def delete_prefix(self):
199 self.highlighter.write('- ')
200 self.highlighter.color(self.delete_color)
202 def insert_prefix(self):
203 self.highlighter.write('+ ')
204 self.highlighter.color(self.insert_color)
206 def equal_prefix(self):
207 self.highlighter.write(' ')
209 def normal_suffix(self):
210 self.highlighter.normal()
212 def replace_prefix(self):
213 self.highlighter.write('| ')
220 # Parse command line options
221 optparser = optparse.OptionParser(
222 usage='\n\t%prog <trace> <trace>',
224 optparser.add_option(
225 '-a', '--apitrace', metavar='PROGRAM',
226 type='string', dest='apitrace', default='apitrace',
227 help='apitrace command [default: %default]')
228 optparser.add_option(
229 '-c', '--calls', metavar='CALLSET',
230 type="string", dest="calls", default='1-10000',
231 help="calls to compare [default: %default]")
234 (options, args) = optparser.parse_args(sys.argv[1:])
236 optparser.error("incorrect number of arguments")
238 ref_calls = readtrace(args[0])
239 src_calls = readtrace(args[1])
241 highlighter = LessHighlighter()
243 differ = SDiffer(ref_calls, src_calls, highlighter)
247 if __name__ == '__main__':