Add TRACE calls for all gpu driver calls

ui/gl/generate_bindings.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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 GL/GLES extension wrangler."""
 
 import optparse
 import os
 import collections
@@ skipping 1329 matching lines @@
 
   # Write file header.
   file.write(
 """// Copyright (c) 2011 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.
 
 // This file is automatically generated.
 
 #include <string>
+#include "base/debug/trace_event.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_%s_api_implementation.h"
 
 using gpu::gles2::GLES2Util;
 
 namespace gfx {
 """ % set_name.lower())
@@ skipping 143 matching lines @@
       file.write('  }\n')
   file.write('}\n')
 
   # Write function to clear all function pointers.
   file.write('\n')
   file.write("""void Driver%s::ClearBindings() {
   memset(this, 0, sizeof(*this));
 }
 """ % set_name.upper())
 
-  # Write RealGLApi functions
+  # Write GLApiBase functions
   for func in functions:
     names = func['names']
     return_type = func['return_type']
     arguments = func['arguments']
     file.write('\n')
     file.write('%s %sApiBase::%sFn(%s) {\n' %
         (return_type, set_name.upper(), names[0], arguments))
     argument_names = re.sub(
         r'(const )?[a-zA-Z0-9_]+\** ([a-zA-Z0-9_]+)', r'\2', arguments)
     argument_names = re.sub(
         r'(const )?[a-zA-Z0-9_]+\** ([a-zA-Z0-9_]+)', r'\2', argument_names)
     if argument_names == 'void' or argument_names == '':
       argument_names = ''
     function_name = names[0]
     if return_type == 'void':
       file.write('  driver_->fn.%sFn(%s);\n' %
           (function_name, argument_names))
     else:
       file.write('  return driver_->fn.%sFn(%s);\n' %
           (function_name, argument_names))
     file.write('}\n')
 
+  # Write TraceGLApi functions
+  for func in functions:
+    names = func['names']
+    return_type = func['return_type']
+    arguments = func['arguments']
+    file.write('\n')
+    file.write('%s Trace%sApi::%sFn(%s) {\n' %
+        (return_type, set_name.upper(), names[0], arguments))
+    argument_names = re.sub(
+        r'(const )?[a-zA-Z0-9_]+\** ([a-zA-Z0-9_]+)', r'\2', arguments)
+    argument_names = re.sub(
+        r'(const )?[a-zA-Z0-9_]+\** ([a-zA-Z0-9_]+)', r'\2', argument_names)
+    if argument_names == 'void' or argument_names == '':
+      argument_names = ''
+    function_name = names[0]
+    file.write('  TRACE_EVENT0("gpu", "TraceGLAPI::%s")\n' % function_name)
+    if return_type == 'void':
+      file.write('  %s_api_->%sFn(%s);\n' %
+          (set_name.lower(), function_name, argument_names))
+    else:
+      file.write('  return %s_api_->%sFn(%s);\n' %
+          (set_name.lower(), function_name, argument_names))
+    file.write('}\n')
+
   file.write('\n')
   file.write('}  // namespace gfx\n')
 
 
 def GenerateMockSource(file, functions):
   """Generates functions that invoke a mock GLInterface"""
 
   file.write(
 """// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
@@ skipping 247 matching lines @@
     header_file.close()
 
   source_file = open(os.path.join(dir, 'gl_bindings_autogen_mock.cc'), 'wb')
   GenerateMockSource(source_file, GL_FUNCTIONS)
   source_file.close()
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))