Add support for khronos gl-cts using its drawElements apis

gpu/khronos_glcts_support/generate_khronos_glcts_tests.py

Index: gpu/khronos_glcts_support/generate_khronos_glcts_tests.py
diff --git a/gpu/khronos_glcts_support/generate_khronos_glcts_tests.py b/gpu/khronos_glcts_support/generate_khronos_glcts_tests.py
new file mode 100755
index 0000000000000000000000000000000000000000..31472865b116ad44665fdf9a38c7036ec37d18a2
--- /dev/null
+++ b/gpu/khronos_glcts_support/generate_khronos_glcts_tests.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Code generator for khronos_glcts tests."""
+
+import os
+import re
+import sys
+import argparse
+
+TEST_DEF_TEMPLATE = """
+TEST(KhronosGLCTSTest, %(gname)s) {
+  EXPECT_TRUE(RunKhronosGLCTSTest("%(cname)s"));
+}
+"""
+
+RUN_FILE_SUITE_PREFIX = {
+  "mustpass_es20.run" : "ES2-CTS.gtf",
+}
+
+def ReadFileAsLines(filename):
+  """
+    Reads a file, yielding each non-blank line
+    and lines that don't begin with #
+  """
+  file = open(filename, "r")
+  lines = file.readlines()
+  file.close()
+  for line in lines:
+    line = line.strip()
+    if len(line) > 0 and not line.startswith("#"):
+      yield line
+
+def ReadRunFile(run_file):
+  """
+    Find all .test tests in a .run file and return their paths.
+    If the .run file contains another .run file, then that is inspected
+    too.
+  """
+  tests = list()
+  base_dir = os.path.dirname(run_file)
+  for line in ReadFileAsLines(run_file):
+    root, ext = os.path.splitext(line)
+    if ext == ".test":
+      tests.append(os.path.join(base_dir, line))
+    elif ext == ".run":
+      tests += ReadRunFile(os.path.join(base_dir, line))
+    else:
+      raise ValueError, "Unexpected line '%s' in '%s'" % (line, run_file)
+  return tests
+
+def GenerateTests(run_files, output):
+  """
+    Generates code for khronos_glcts_test test-cases that are
+    listed in the run_files.
+  """
+  output.write('#include "gpu/khronos_glcts_support/khronos_glcts_test.h"\n')
+  output.write('#include "testing/gtest/include/gtest/gtest.h"\n\n')
+
+  for run_file in run_files:
+    run_file_name = os.path.basename(run_file)
+    run_file_dir = os.path.dirname(run_file)
+    suite_prefix = RUN_FILE_SUITE_PREFIX[run_file_name]
+    output.write("// " + run_file_name + "\n")
+    for test in ReadRunFile(run_file):
+      rel_path = os.path.relpath(test, run_file_dir)
+      root, ext = os.path.splitext(rel_path)
+      name = root.replace('.', '_')
+      name = "%s.%s" % (suite_prefix, name.replace(os.path.sep, '.'))
+      output.write(TEST_DEF_TEMPLATE
+        % {
+          "gname": re.sub(r'[^A-Za-z0-9]', '_', name),
+          "cname": name,
+        })
+    output.write("\n");
+
+def main():
+  """This is the main function."""
+  parser = argparse.ArgumentParser()
+  parser.add_argument("--outdir", default = ".")
+  parser.add_argument("run_files", nargs = "+")
+
+  args = parser.parse_args()
+
+  output = open(
+    os.path.join(args.outdir, "khronos_glcts_test_autogen.cc"), "wb")
+
+  try:
+    GenerateTests(args.run_files, output)
+  finally:
+    output.close()
+
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main())