GFXBench: New workload

Creating a new workload to execute the following tests on GFXBench.

* Car Chase
* Car Chase Offscreen
* Manhattan 3.1
* 1080p Manhattan 3.1 Offscreen
* 1440p Manhattan 3.1 Offscreen
* Tessellation
* Tessellation Offscreen

wa/workloads/gfxbench/__init__.py

@@ -0,0 +1,67 @@
+#    Copyright 2014-2016 ARM Limited
+#
+# 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 re
+
+from wa import ApkUiautoWorkload, WorkloadError, Parameter
+
+
+class Gfxbench(ApkUiautoWorkload):
+
+    name = 'gfxbench-corporate'
+    package_names = ['net.kishonti.gfxbench.gl.v50000.corporate']
+    regex_matches = [re.compile(r'Car Chase score (.+)'),
+                     re.compile(r'Car Chase Offscreen score (.+)'),
+                     re.compile(r'Manhattan 3.1 score (.+)'),
+                     re.compile(r'1080p Manhattan 3.1 Offscreen score (.+)'),
+                     re.compile(r'1440p Manhattan 3.1 Offscreen score (.+)'),
+                     re.compile(r'Tessellation score (.+)'),
+                     re.compile(r'Tessellation Offscreen score (.+)')]
+    description = '''
+    Execute a subset of graphical performance benchmarks
+
+    Test description:
+    1. Open the gfxbench application
+    2. Execute Car Chase, Manhattan and Tessellation benchmarks
+
+    '''
+    parameters = [
+        Parameter('timeout', kind=int, default=3600,
+                  description=('Timeout for a single iteration of the benchmark. This value is '
+                               'multiplied by ``times`` to calculate the overall run timeout. ')),
+    ]
+
+    def __init__(self, target, **kwargs):
+        super(Gfxbench, self).__init__(target, **kwargs)
+        self.gui.timeout = self.timeout
+
+    def update_output(self, context):
+        super(Gfxbench, self).update_output(context)
+        expected_results = len(self.regex_matches)
+        logcat_file = context.get_artifact_path('logcat')
+        with open(logcat_file) as fh:
+            for line in fh:
+                for regex in self.regex_matches:
+                    match = regex.search(line)
+                    if match:
+                        try:
+                            result = float(match.group(1))
+                        except ValueError:
+                            result = 'NaN'
+                        entry = regex.pattern.rsplit(None, 1)[0]
+                        context.add_metric(entry, result, 'FPS', lower_is_better=False)
+                        expected_results -= 1
+        if expected_results > 0:
+            msg = "The GFXBench workload has failed. Expected {} scores, Detected {} scores."
+            raise WorkloadError(msg.format(len(self.regex_matches), expected_results))