Implement proxy for 3d-related interfaces

gpu/command_buffer/build_gles2_cmd_buffer.py

 #!/usr/bin/python
 #
-# Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+# 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.
 
 """code generator for GLES2 command buffers."""
 
 import os
 import os.path
 import sys
 import re
 from optparse import OptionParser
 
 _SIZE_OF_UINT32 = 4
 _SIZE_OF_COMMAND_HEADER = 4
 _FIRST_SPECIFIC_COMMAND_ID = 256
 
-_LICENSE = """// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+_LICENSE = """// 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 string is copied directly out of the gl2.h file from GLES2.0
 #
 # Edits:
 #
 # *) Any argument that is a resourceID has been changed to GLid<Type>.
@@ skipping 5319 matching lines @@
 const PPB_OpenGLES2_Dev* PPB_OpenGLES_Impl::GetInterface() {
   return &ppb_opengles2;
 }
 
 """)
     file.Write("}  // namespace ppapi\n")
     file.Write("}  // namespace webkit\n\n")
 
     file.Close()
 
+  def WritePepperGLES2ProxyImplementation(self, filename):
+    """Writes the Pepper OpenGLES interface implementation."""
+
+    file = CWriter(filename)
+    file.Write(_LICENSE)
+    file.Write("// This file is auto-generated. DO NOT EDIT!\n\n")
+
+    file.Write("#include \"ppapi/proxy/ppb_opengles2_proxy.h\"\n\n")
+
+    file.Write("#include \"gpu/command_buffer/client/gles2_implementation.h\"\n")
+    file.Write("#include \"ppapi/c/pp_errors.h\"\n")
+    file.Write("#include \"ppapi/c/pp_resource.h\"\n")
+    file.Write("#include \"ppapi/c/dev/ppb_opengles_dev.h\"\n")
+    file.Write("#include \"ppapi/proxy/plugin_dispatcher.h\"\n")
+    file.Write("#include \"ppapi/proxy/plugin_resource.h\"\n")
+    file.Write("#include \"ppapi/proxy/ppb_context_3d_proxy.h\"\n\n")
+
+    file.Write("namespace pp {\n")
+    file.Write("namespace proxy {\n\n")
+    file.Write("namespace {\n\n")
+
+
+    for func in self.original_functions:
+      if not func.IsCoreGLFunction():
+        continue
+
+      original_arg = func.MakeTypedOriginalArgString("")
+      context_arg = "PP_Resource context_id"
+      if len(original_arg):
+        arg = context_arg + ", " + original_arg
+      else:
+        arg = context_arg
+      file.Write("%s %s(%s) {\n" % (func.return_type, func.name, arg))
+
+      file.Write("""  Context3D* context = PluginResource::GetAs<Context3D>(context_id);\n""")
+
+      return_str = "" if func.return_type == "void" else "return "
+      file.Write("  %scontext->gles2_impl()->%s(%s);\n" %
+                 (return_str, func.original_name,
+                  func.MakeOriginalArgString("")))
+      file.Write("}\n\n")
+
+    file.Write("const struct PPB_OpenGLES2_Dev ppb_opengles2 = {\n")
+    file.Write("  &")
+    file.Write(",\n  &".join(
+      f.name for f in self.original_functions if f.IsCoreGLFunction()))
+    file.Write("\n")
+    file.Write("};\n\n")
+
+    file.Write("}  // namespace\n")
+
+    file.Write("""
+PPB_OpenGLES2_Proxy::PPB_OpenGLES2_Proxy(Dispatcher* dispatcher,
+                                         const void* target_interface)
+    : InterfaceProxy(dispatcher, target_interface) {
+}
+
+PPB_OpenGLES2_Proxy::~PPB_OpenGLES2_Proxy() {
+}
+
+const void* PPB_OpenGLES2_Proxy::GetSourceInterface() const {
+  return &ppb_opengles2;
+}
+
+InterfaceID PPB_OpenGLES2_Proxy::GetInterfaceId() const {
+  return INTERFACE_ID_NONE;
+}
+
+bool PPB_OpenGLES2_Proxy::OnMessageReceived(const IPC::Message& msg) {
+  return false;
+}
+
+""")
+    file.Write("}  // namespace proxy\n")
+    file.Write("}  // namespace pp\n")
+
+    file.Close()
+
   def WriteGLES2ToPPAPIBridge(self, filename):
     """Connects GLES2 helper library to PPB_OpenGLES2 interface"""
 
     file = CWriter(filename)
     file.Write(_LICENSE)
     file.Write("// This file is auto-generated. DO NOT EDIT!\n\n")
 
     file.Write("#include <GLES2/gl2.h>\n")
     file.Write("#include \"ppapi/lib/gl/gles2/gl2ext_ppapi.h\"\n\n")
 
@@ skipping 23 matching lines @@
       "-g", "--generate-implementation-templates", action="store_true",
       help="generates files that are generally hand edited..")
   parser.add_option(
       "--generate-command-id-tests", action="store_true",
       help="generate tests for commands ids. Commands MUST not change ID!")
   parser.add_option(
       "--generate-docs", action="store_true",
       help="generate a docs friendly version of the command formats.")
   parser.add_option(
       "--alternate-mode", type="choice",
-      choices=("ppapi", "chrome_ppapi"),
+      choices=("ppapi", "chrome_ppapi", "chrome_ppapi_proxy"),
       help="generate files for other projects. \"ppapi\" must be run from the "
       "directory containing the ppapi directory, and will generate ppapi "
       "bindings. \"chrome_ppapi\" must be run from chrome src directory and "
-      "will generate chrome plumbing for ppapi.")
+      "will generate chrome plumbing for ppapi. \"chrome_ppapi_proxy\" must be "
+      "run from chrome src directory and " "will generate the glue for the"
+      "chrome IPC ppapi proxy.")
   parser.add_option(
       "-v", "--verbose", action="store_true",
       help="prints more output.")
 
   (options, args) = parser.parse_args(args=argv)
 
   gen = GLGenerator(options.verbose)
   gen.ParseGLH("common/GLES2/gl2.h")
 
   if options.alternate_mode == "ppapi":
     gen.WritePepperGLES2Interface("ppapi/c/dev/ppb_opengles_dev.h")
     gen.WriteGLES2ToPPAPIBridge("ppapi/lib/gl/gles2/gles2.c")
 
   elif options.alternate_mode == "chrome_ppapi":
     gen.WritePepperGLES2Implementation(
         "webkit/plugins/ppapi/ppb_opengles_impl.cc")
 
+  elif options.alternate_mode == "chrome_ppapi_proxy":
+    gen.WritePepperGLES2ProxyImplementation(
+        "ppapi/proxy/ppb_opengles2_proxy.cc")
+
   else:
     gen.WriteCommandIds("common/gles2_cmd_ids_autogen.h")
     gen.WriteFormat("common/gles2_cmd_format_autogen.h")
     gen.WriteFormatTest("common/gles2_cmd_format_test_autogen.h")
     gen.WriteGLES2ImplementationHeader("client/gles2_implementation_autogen.h")
     gen.WriteGLES2CLibImplementation("client/gles2_c_lib_autogen.h")
     gen.WriteCmdHelperHeader("client/gles2_cmd_helper_autogen.h")
     gen.WriteServiceImplementation("service/gles2_cmd_decoder_autogen.h")
     gen.WriteServiceUnitTests("service/gles2_cmd_decoder_unittest_%d_autogen.h")
     gen.WriteServiceUtilsHeader("service/gles2_cmd_validation_autogen.h")
     gen.WriteServiceUtilsImplementation(
         "service/gles2_cmd_validation_implementation_autogen.h")
 
     if options.generate_command_id_tests:
       gen.WriteCommandIdTest("common/gles2_cmd_id_test_autogen.h")
 
     if options.generate_docs:
       gen.WriteDocs("docs/gles2_cmd_format_docs_autogen.h")
 
   if gen.errors > 0:
     print "%d errors" % gen.errors
     sys.exit(1)
 
 if __name__ == '__main__':
   main(sys.argv[1:])