Use macros to define pepper interfaces

ppapi/proxy/interface_list.cc

Index: ppapi/proxy/interface_list.cc
diff --git a/ppapi/proxy/interface_list.cc b/ppapi/proxy/interface_list.cc
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+// 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.
+
+#include "ppapi/proxy/interface_list.h"
+
+#include "base/memory/singleton.h"
+#include "ppapi/c/dev/ppb_buffer_dev.h"
+#include "ppapi/c/dev/ppb_char_set_dev.h"
+#include "ppapi/c/dev/ppb_console_dev.h"
+#include "ppapi/c/dev/ppb_context_3d_dev.h"
+#include "ppapi/c/dev/ppb_crypto_dev.h"
+#include "ppapi/c/dev/ppb_cursor_control_dev.h"
+#include "ppapi/c/dev/ppb_gles_chromium_texture_mapping_dev.h"
+#include "ppapi/c/dev/ppb_font_dev.h"
+#include "ppapi/c/dev/ppb_memory_dev.h"
+#include "ppapi/c/dev/ppb_opengles_dev.h"
+#include "ppapi/c/dev/ppb_surface_3d_dev.h"
+#include "ppapi/c/dev/ppb_testing_dev.h"
+#include "ppapi/c/dev/ppb_url_util_dev.h"
+#include "ppapi/c/dev/ppb_var_deprecated.h"
+#include "ppapi/c/dev/ppb_video_capture_dev.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/ppb_audio.h"
+#include "ppapi/c/ppb_audio_config.h"
+#include "ppapi/c/ppb_core.h"
+#include "ppapi/c/ppb_file_ref.h"
+#include "ppapi/c/ppb_file_system.h"
+#include "ppapi/c/ppb_graphics_2d.h"
+#include "ppapi/c/ppb_image_data.h"
+#include "ppapi/c/ppb_input_event.h"
+#include "ppapi/c/ppb_instance.h"
+#include "ppapi/c/ppb_messaging.h"
+#include "ppapi/c/ppb_url_loader.h"
+#include "ppapi/c/ppb_url_request_info.h"
+#include "ppapi/c/ppb_url_response_info.h"
+#include "ppapi/c/ppb_var.h"
+#include "ppapi/c/ppp_instance.h"
+#include "ppapi/c/private/ppb_flash.h"
+#include "ppapi/c/private/ppb_flash_clipboard.h"
+#include "ppapi/c/private/ppb_flash_file.h"
+#include "ppapi/c/private/ppb_flash_menu.h"
+#include "ppapi/c/private/ppb_flash_net_connector.h"
+#include "ppapi/c/private/ppb_flash_tcp_socket.h"
+#include "ppapi/c/private/ppb_pdf.h"
+#include "ppapi/c/trusted/ppb_broker_trusted.h"
+#include "ppapi/c/trusted/ppb_url_loader_trusted.h"
+#include "ppapi/proxy/interface_proxy.h"
+#include "ppapi/proxy/ppb_audio_proxy.h"
+#include "ppapi/proxy/ppb_broker_proxy.h"
+#include "ppapi/proxy/ppb_buffer_proxy.h"
+#include "ppapi/proxy/ppb_char_set_proxy.h"
+#include "ppapi/proxy/ppb_context_3d_proxy.h"
+#include "ppapi/proxy/ppb_core_proxy.h"
+#include "ppapi/proxy/ppb_crypto_proxy.h"
+#include "ppapi/proxy/ppb_cursor_control_proxy.h"
+#include "ppapi/proxy/ppb_file_chooser_proxy.h"
+#include "ppapi/proxy/ppb_file_ref_proxy.h"
+#include "ppapi/proxy/ppb_file_system_proxy.h"
+#include "ppapi/proxy/ppb_flash_clipboard_proxy.h"
+#include "ppapi/proxy/ppb_flash_file_proxy.h"
+#include "ppapi/proxy/ppb_flash_proxy.h"
+#include "ppapi/proxy/ppb_flash_menu_proxy.h"
+#include "ppapi/proxy/ppb_flash_net_connector_proxy.h"
+#include "ppapi/proxy/ppb_flash_tcp_socket_proxy.h"
+#include "ppapi/proxy/ppb_font_proxy.h"
+#include "ppapi/proxy/ppb_graphics_2d_proxy.h"
+#include "ppapi/proxy/ppb_graphics_3d_proxy.h"
+#include "ppapi/proxy/ppb_image_data_proxy.h"
+#include "ppapi/proxy/ppb_instance_proxy.h"
+#include "ppapi/proxy/ppb_memory_proxy.h"
+#include "ppapi/proxy/ppb_pdf_proxy.h"
+#include "ppapi/proxy/ppb_surface_3d_proxy.h"
+#include "ppapi/proxy/ppb_testing_proxy.h"
+#include "ppapi/proxy/ppb_url_loader_proxy.h"
+#include "ppapi/proxy/ppb_url_response_info_proxy.h"
+#include "ppapi/proxy/ppb_url_util_proxy.h"
+#include "ppapi/proxy/ppb_var_deprecated_proxy.h"
+#include "ppapi/proxy/ppb_var_proxy.h"
+#include "ppapi/proxy/ppb_video_capture_proxy.h"
+#include "ppapi/proxy/ppb_video_decoder_proxy.h"
+#include "ppapi/proxy/ppp_class_proxy.h"
+#include "ppapi/proxy/ppp_graphics_3d_proxy.h"
+#include "ppapi/proxy/ppp_input_event_proxy.h"
+#include "ppapi/proxy/ppp_instance_private_proxy.h"
+#include "ppapi/proxy/ppp_instance_proxy.h"
+#include "ppapi/proxy/ppp_messaging_proxy.h"
+#include "ppapi/proxy/ppp_video_decoder_proxy.h"
+#include "ppapi/proxy/resource_creation_proxy.h"
+#include "ppapi/shared_impl/opengles2_impl.h"
+#include "ppapi/thunk/thunk.h"
+
+// Helper to get the proxy name PPB_Foo_Proxy given the API name PPB_Foo.
+#define PROXY_CLASS_NAME(api_name) api_name##_Proxy
+
+// Helper to get the interface ID PPB_Foo_Proxy::kInterfaceID given the API
+// name PPB_Foo.
+#define PROXY_INTERFACE_ID(api_name) PROXY_CLASS_NAME(api_name)::kInterfaceID
+
+// Helper to get the name of the factory function CreatePPB_Foo_Proxy given
+// the API name PPB_Foo.
+#define PROXY_FACTORY_NAME(api_name) Create##api_name##_Proxy
+
+// Helper to get the name of the thunk GetPPB_Foo_1_0_Thunk given the interface
+// struct name PPB_Foo_1_0.
+#define INTERFACE_THUNK_NAME(iface_struct) thunk::Get##iface_struct##_Thunk
+
+namespace ppapi {
+namespace proxy {
+
+namespace {
+
+// The interface list has interfaces with no ID listed as "NoAPIName" which
+// means there's no corresponding _Proxy object. Our macros expand this to
+// NoAPIName_Proxy, and then they look for kInterfaceID inside it.
+//
+// This dummy class provides the correct definition for that interface ID,
+// which is "NONE".
+class NoAPIName_Proxy {
+ public:
+  static const InterfaceID kInterfaceID = INTERFACE_ID_NONE;
+};
+
+// Define factory functions for each interface type. These are of the form:
+//   InterfaceProxy* CreatePPB_URLLoader_Proxy(...
+#define PROXIED_API(api_name) \
+    InterfaceProxy* PROXY_FACTORY_NAME(api_name)(Dispatcher* dispatcher) { \
+      return new PROXY_CLASS_NAME(api_name)(dispatcher); \
+    }
+#include "ppapi/thunk/interfaces_ppb_public_stable.h"
+#include "ppapi/thunk/interfaces_ppb_public_dev.h"
+#include "ppapi/thunk/interfaces_ppb_private.h"
+#undef PROXIED_API
+
+}  // namespace
+
+InterfaceList::InterfaceList() {
+  memset(id_to_factory_, 0, sizeof(id_to_factory_));
+
+  // Register the API factories for each of the API types. This calls AddProxy
+  // for each InterfaceProxy type we support.
+  #define PROXIED_API(api_name) \
+      AddProxy(PROXY_INTERFACE_ID(api_name), &PROXY_FACTORY_NAME(api_name));
+
+  // Register each proxied interface by calling AddPPB for each supported
+  // interface.
+  #define PROXIED_IFACE(api_name, iface_str, iface_struct) \
+      AddPPB(iface_str, PROXY_INTERFACE_ID(api_name), \
+             INTERFACE_THUNK_NAME(iface_struct)());
+
+  #include "ppapi/thunk/interfaces_ppb_public_stable.h"
+  #include "ppapi/thunk/interfaces_ppb_public_dev.h"
+  #include "ppapi/thunk/interfaces_ppb_private.h"
+
+  #undef PROXIED_API
+  #undef PROXIED_IFACE
+
+  // New-style AddPPB not converted to the macros above.
+  AddPPB(PPB_CORE_INTERFACE, INTERFACE_ID_PPB_CORE,
+         PPB_Core_Proxy::GetPPB_Core_Interface());
+  AddPPB(PPB_MEMORY_DEV_INTERFACE, INTERFACE_ID_NONE,
+         GetPPB_Memory_Interface());
+  AddPPB(PPB_OPENGLES2_DEV_INTERFACE, INTERFACE_ID_NONE,
+         OpenGLES2Impl::GetInterface());
+  AddPPB(PPB_VAR_INTERFACE, INTERFACE_ID_NONE,
+         GetPPB_Var_Interface());
+
+  // Manually add some special proxies. These don't have interfaces that they
+  // support, so aren't covered by the macros above, but have proxies for
+  // message routing.
+  AddProxy(INTERFACE_ID_RESOURCE_CREATION, &ResourceCreationProxy::Create);
+  AddProxy(INTERFACE_ID_PPP_CLASS, &PPP_Class_Proxy::Create);
+
+  // PPB (browser) interfaces.
+  AddPPB(PPB_Crypto_Proxy::GetInfo());
+  AddPPB(PPB_Flash_Clipboard_Proxy::GetInfo());
+  AddPPB(PPB_Flash_File_FileRef_Proxy::GetInfo());
+  AddPPB(PPB_Flash_File_ModuleLocal_Proxy::GetInfo());
+  AddPPB(PPB_Flash_Menu_Proxy::GetInfo());
+  AddPPB(PPB_Flash_Proxy::GetInfo());
+  AddPPB(PPB_Flash_TCPSocket_Proxy::GetInfo());
+  AddPPB(PPB_Instance_Proxy::GetInfoFullscreen());
+  AddPPB(PPB_Instance_Proxy::GetInfoPrivate());
+  AddPPB(PPB_PDF_Proxy::GetInfo());
+  AddPPB(PPB_Testing_Proxy::GetInfo());
+  AddPPB(PPB_URLLoader_Proxy::GetTrustedInfo());
+  AddPPB(PPB_URLUtil_Proxy::GetInfo());
+  AddPPB(PPB_Var_Deprecated_Proxy::GetInfo());
+
+#ifdef ENABLE_FLAPPER_HACKS
+  AddPPB(PPB_Flash_NetConnector_Proxy::GetInfo());
+#endif
+
+  // PPP (plugin) interfaces.
+  AddPPP(PPP_Graphics3D_Proxy::GetInfo());
+  AddPPP(PPP_InputEvent_Proxy::GetInfo());
+  AddPPP(PPP_Instance_Private_Proxy::GetInfo());
+  AddPPP(PPP_Instance_Proxy::GetInfo1_0());
+  AddPPP(PPP_Messaging_Proxy::GetInfo());
+  AddPPP(PPP_VideoCapture_Proxy::GetInfo());
+  AddPPP(PPP_VideoDecoder_Proxy::GetInfo());
+}
+
+InterfaceList::~InterfaceList() {
+}
+
+// static
+InterfaceList* InterfaceList::GetInstance() {
+  return Singleton<InterfaceList>::get();
+}
+
+InterfaceID InterfaceList::GetIDForPPBInterface(const std::string& name) const {
+  NameToInterfaceInfoMap::const_iterator found =
+      name_to_browser_info_.find(name);
+  if (found == name_to_browser_info_.end())
+    return INTERFACE_ID_NONE;
+  return found->second.id;
+}
+
+InterfaceID InterfaceList::GetIDForPPPInterface(const std::string& name) const {
+  NameToInterfaceInfoMap::const_iterator found =
+      name_to_plugin_info_.find(name);
+  if (found == name_to_plugin_info_.end())
+    return INTERFACE_ID_NONE;
+  return found->second.id;
+}
+
+InterfaceProxy::Factory InterfaceList::GetFactoryForID(InterfaceID id) const {
+  int index = static_cast<int>(id);
+  COMPILE_ASSERT(INTERFACE_ID_NONE == 0, none_must_be_zero);
+  if (id <= 0 || id >= INTERFACE_ID_COUNT)
+    return NULL;
+  return id_to_factory_[index];
+}
+
+const void* InterfaceList::GetInterfaceForPPB(const std::string& name) const {
+  NameToInterfaceInfoMap::const_iterator found =
+      name_to_browser_info_.find(name);
+  if (found == name_to_browser_info_.end())
+    return NULL;
+  return found->second.interface;
+}
+
+const void* InterfaceList::GetInterfaceForPPP(const std::string& name) const {
+  NameToInterfaceInfoMap::const_iterator found =
+      name_to_plugin_info_.find(name);
+  if (found == name_to_plugin_info_.end())
+    return NULL;
+  return found->second.interface;
+}
+
+void InterfaceList::AddProxy(InterfaceID id,
+                             InterfaceProxy::Factory factory) {
+  // For interfaces with no corresponding _Proxy objects, the macros will
+  // generate calls to this function with INTERFACE_ID_NONE. This means we
+  // should just skip adding a factory for these functions.
+  if (id == INTERFACE_ID_NONE)
+    return;
+
+  // The factory should be an exact dupe of the one we already have if it
+  // has already been registered before.
+  int index = static_cast<int>(id);
+  DCHECK(!id_to_factory_[index] || id_to_factory_[index] == factory);
+
+  id_to_factory_[index] = factory;
+}
+
+void InterfaceList::AddPPB(const char* name,
+                           InterfaceID id,
+                           const void* interface) {
+  DCHECK(name_to_browser_info_.find(name) == name_to_browser_info_.end());
+  name_to_browser_info_[name] = InterfaceInfo(id, interface);
+}
+
+void InterfaceList::AddPPP(const char* name,
+                           InterfaceID id,
+                           const void* interface) {
+  DCHECK(name_to_plugin_info_.find(name) == name_to_plugin_info_.end());
+  name_to_plugin_info_[name] = InterfaceInfo(id, interface);
+}
+
+void InterfaceList::AddPPB(const InterfaceProxy::Info* info) {
+  AddProxy(info->id, info->create_proxy);
+  AddPPB(info->name, info->id, info->interface_ptr);
+}
+
+void InterfaceList::AddPPP(const InterfaceProxy::Info* info) {
+  AddProxy(info->id, info->create_proxy);
+  AddPPP(info->name, info->id, info->interface_ptr);
+}
+
+}  // namespace proxy
+}  // namespace ppapi