Revert 110587 - Microphone support for Pepper Flash.

ppapi/proxy/ppb_audio_input_proxy.cc

Index: ppapi/proxy/ppb_audio_input_proxy.cc
===================================================================
--- ppapi/proxy/ppb_audio_input_proxy.cc	(revision 110601)
+++ ppapi/proxy/ppb_audio_input_proxy.cc	(working copy)
@@ -1,334 +0,0 @@
-// 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/ppb_audio_input_proxy.h"
-
-#include "base/compiler_specific.h"
-#include "base/threading/simple_thread.h"
-#include "ppapi/c/dev/ppb_audio_input_dev.h"
-#include "ppapi/c/pp_errors.h"
-#include "ppapi/c/ppb_audio_config.h"
-#include "ppapi/c/ppb_var.h"
-#include "ppapi/c/trusted/ppb_audio_trusted.h"
-#include "ppapi/proxy/enter_proxy.h"
-#include "ppapi/proxy/plugin_dispatcher.h"
-#include "ppapi/proxy/ppapi_messages.h"
-#include "ppapi/shared_impl/api_id.h"
-#include "ppapi/shared_impl/audio_input_impl.h"
-#include "ppapi/shared_impl/ppapi_globals.h"
-#include "ppapi/shared_impl/resource.h"
-#include "ppapi/thunk/enter.h"
-#include "ppapi/thunk/ppb_audio_config_api.h"
-#include "ppapi/thunk/resource_creation_api.h"
-#include "ppapi/thunk/thunk.h"
-
-using ppapi::thunk::EnterResourceNoLock;
-using ppapi::thunk::PPB_AudioInput_API;
-using ppapi::thunk::PPB_AudioConfig_API;
-
-namespace ppapi {
-namespace proxy {
-
-class AudioInput : public Resource, public AudioInputImpl {
- public:
-  AudioInput(const HostResource& audio_input_id,
-             PP_Resource config_id,
-             PPB_AudioInput_Callback callback,
-             void* user_data);
-  virtual ~AudioInput();
-
-  // Resource overrides.
-  virtual PPB_AudioInput_API* AsPPB_AudioInput_API() OVERRIDE;
-
-  // PPB_AudioInput_API implementation.
-  virtual PP_Resource GetCurrentConfig() OVERRIDE;
-  virtual PP_Bool StartCapture() OVERRIDE;
-  virtual PP_Bool StopCapture() OVERRIDE;
-
-  virtual int32_t OpenTrusted(PP_Resource config_id,
-                              PP_CompletionCallback create_callback) OVERRIDE;
-  virtual int32_t GetSyncSocket(int* sync_socket) OVERRIDE;
-  virtual int32_t GetSharedMemory(int* shm_handle, uint32_t* shm_size) OVERRIDE;
-
- private:
-  // Owning reference to the current config object. This isn't actually used,
-  // we just dish it out as requested by the plugin.
-  PP_Resource config_;
-
-  DISALLOW_COPY_AND_ASSIGN(AudioInput);
-};
-
-AudioInput::AudioInput(const HostResource& audio_input_id,
-                       PP_Resource config_id,
-                       PPB_AudioInput_Callback callback,
-                       void* user_data)
-    : Resource(audio_input_id),
-      config_(config_id) {
-  SetCallback(callback, user_data);
-  PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(config_);
-}
-
-AudioInput::~AudioInput() {
-  PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(config_);
-}
-
-PPB_AudioInput_API* AudioInput::AsPPB_AudioInput_API() {
-  return this;
-}
-
-PP_Resource AudioInput::GetCurrentConfig() {
-  // AddRef for the caller.
-  PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(config_);
-  return config_;
-}
-
-PP_Bool AudioInput::StartCapture() {
-  if (capturing())
-    return PP_TRUE;
-  SetStartCaptureState();
-  PluginDispatcher::GetForResource(this)->Send(
-      new PpapiHostMsg_PPBAudioInput_StartOrStop(
-          API_ID_PPB_AUDIO_INPUT_DEV, host_resource(), true));
-  return PP_TRUE;
-}
-
-PP_Bool AudioInput::StopCapture() {
-  if (!capturing())
-    return PP_TRUE;
-  PluginDispatcher::GetForResource(this)->Send(
-      new PpapiHostMsg_PPBAudioInput_StartOrStop(
-          API_ID_PPB_AUDIO_INPUT_DEV, host_resource(), false));
-  SetStopCaptureState();
-  return PP_TRUE;
-}
-
-int32_t AudioInput::OpenTrusted(PP_Resource config_id,
-                                PP_CompletionCallback create_callback) {
-  return PP_ERROR_NOTSUPPORTED;  // Don't proxy the trusted interface.
-}
-
-int32_t AudioInput::GetSyncSocket(int* sync_socket) {
-  return PP_ERROR_NOTSUPPORTED;  // Don't proxy the trusted interface.
-}
-
-int32_t AudioInput::GetSharedMemory(int* shm_handle, uint32_t* shm_size) {
-  return PP_ERROR_NOTSUPPORTED;  // Don't proxy the trusted interface.
-}
-
-namespace {
-
-base::PlatformFile IntToPlatformFile(int32_t handle) {
-  // TODO(piman/brettw): Change trusted interface to return a PP_FileHandle,
-  // those casts are ugly.
-#if defined(OS_WIN)
-  return reinterpret_cast<HANDLE>(static_cast<intptr_t>(handle));
-#elif defined(OS_POSIX)
-  return handle;
-#else
-  #error Not implemented.
-#endif
-}
-
-}  // namespace
-
-PPB_AudioInput_Proxy::PPB_AudioInput_Proxy(Dispatcher* dispatcher)
-    : InterfaceProxy(dispatcher),
-      callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
-}
-
-PPB_AudioInput_Proxy::~PPB_AudioInput_Proxy() {
-}
-
-// static
-PP_Resource PPB_AudioInput_Proxy::CreateProxyResource(
-    PP_Instance instance_id,
-    PP_Resource config_id,
-    PPB_AudioInput_Callback audio_input_callback,
-    void* user_data) {
-  PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance_id);
-  if (!dispatcher)
-    return 0;
-
-  EnterResourceNoLock<PPB_AudioConfig_API> config(config_id, true);
-  if (config.failed())
-    return 0;
-
-  HostResource result;
-  dispatcher->Send(new PpapiHostMsg_PPBAudioInput_Create(
-      API_ID_PPB_AUDIO_INPUT_DEV, instance_id,
-      config.object()->GetSampleRate(), config.object()->GetSampleFrameCount(),
-      &result));
-  if (result.is_null())
-    return 0;
-
-  return (new AudioInput(result, config_id, audio_input_callback,
-                         user_data))->GetReference();
-}
-
-bool PPB_AudioInput_Proxy::OnMessageReceived(const IPC::Message& msg) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(PPB_AudioInput_Proxy, msg)
-    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBAudioInput_Create, OnMsgCreate)
-    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBAudioInput_StartOrStop,
-                        OnMsgStartOrStop)
-    IPC_MESSAGE_HANDLER(PpapiMsg_PPBAudioInput_NotifyAudioStreamCreated,
-                        OnMsgNotifyAudioStreamCreated)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  // TODO(brettw) handle bad messages!
-
-  return handled;
-}
-
-void PPB_AudioInput_Proxy::OnMsgCreate(PP_Instance instance_id,
-                                       int32_t sample_rate,
-                                       uint32_t sample_frame_count,
-                                       HostResource* result) {
-  thunk::EnterFunction<thunk::ResourceCreationAPI> resource_creation(
-      instance_id, true);
-  if (resource_creation.failed())
-    return;
-
-  // Make the resource and get the API pointer to its trusted interface.
-  result->SetHostResource(
-      instance_id,
-      resource_creation.functions()->CreateAudioInputTrusted(instance_id));
-  if (result->is_null())
-    return;
-
-  // At this point, we've set the result resource, and this is a sync request.
-  // Anything below this point must issue the AudioInputChannelConnected
-  // callback to the browser. Since that's an async message, it will be issued
-  // back to the plugin after the Create function returns (which is good
-  // because it would be weird to get a connected message with a failure code
-  // for a resource you haven't finished creating yet).
-  //
-  // The ...ForceCallback class will help ensure the callback is always called.
-  // All error cases must call SetResult on this class.
-
-  EnterHostFromHostResourceForceCallback<PPB_AudioInput_API> enter(
-      *result, callback_factory_,
-      &PPB_AudioInput_Proxy::AudioInputChannelConnected, *result);
-  if (enter.failed())
-    return;  // When enter fails, it will internally schedule the callback.
-
-  // Make an audio config object.
-  PP_Resource audio_config_res =
-      resource_creation.functions()->CreateAudioConfig(
-          instance_id, static_cast<PP_AudioSampleRate>(sample_rate),
-          sample_frame_count);
-  if (!audio_config_res) {
-    enter.SetResult(PP_ERROR_FAILED);
-    return;
-  }
-
-  // Initiate opening the audio object.
-  enter.SetResult(enter.object()->OpenTrusted(audio_config_res,
-                                              enter.callback()));
-
-  // Clean up the temporary audio config resource we made.
-  const PPB_Core* core = static_cast<const PPB_Core*>(
-      dispatcher()->local_get_interface()(PPB_CORE_INTERFACE));
-  core->ReleaseResource(audio_config_res);
-}
-
-void PPB_AudioInput_Proxy::OnMsgStartOrStop(
-    const HostResource& resource,
-    bool capture) {
-  EnterHostFromHostResource<PPB_AudioInput_API> enter(resource);
-  if (enter.failed())
-    return;
-  if (capture)
-    enter.object()->StartCapture();
-  else
-    enter.object()->StopCapture();
-}
-
-// Processed in the plugin (message from host).
-void PPB_AudioInput_Proxy::OnMsgNotifyAudioStreamCreated(
-    const HostResource& audio_id,
-    int32_t result_code,
-    IPC::PlatformFileForTransit socket_handle,
-    base::SharedMemoryHandle handle,
-    uint32_t length) {
-  EnterPluginFromHostResource<PPB_AudioInput_API> enter(audio_id);
-  if (enter.failed() || result_code != PP_OK) {
-    // The caller may still have given us these handles in the failure case.
-    // The easiest way to clean these up is to just put them in the objects
-    // and then close them. This failure case is not performance critical.
-    base::SyncSocket temp_socket(
-        IPC::PlatformFileForTransitToPlatformFile(socket_handle));
-    base::SharedMemory temp_mem(handle, false);
-  } else {
-    static_cast<AudioInput*>(enter.object())->SetStreamInfo(
-        handle, length,
-        IPC::PlatformFileForTransitToPlatformFile(socket_handle));
-  }
-}
-
-void PPB_AudioInput_Proxy::AudioInputChannelConnected(
-    int32_t result,
-    const HostResource& resource) {
-  IPC::PlatformFileForTransit socket_handle =
-      IPC::InvalidPlatformFileForTransit();
-  base::SharedMemoryHandle shared_memory = IPC::InvalidPlatformFileForTransit();
-  uint32_t shared_memory_length = 0;
-
-  int32_t result_code = result;
-  if (result_code == PP_OK) {
-    result_code = GetAudioInputConnectedHandles(resource, &socket_handle,
-                                           &shared_memory,
-                                           &shared_memory_length);
-  }
-
-  // Send all the values, even on error. This simplifies some of our cleanup
-  // code since the handles will be in the other process and could be
-  // inconvenient to clean up. Our IPC code will automatically handle this for
-  // us, as long as the remote side always closes the handles it receives
-  // (in OnMsgNotifyAudioStreamCreated), even in the failure case.
-  dispatcher()->Send(new PpapiMsg_PPBAudioInput_NotifyAudioStreamCreated(
-      API_ID_PPB_AUDIO_INPUT_DEV, resource, result_code, socket_handle,
-      shared_memory, shared_memory_length));
-}
-
-int32_t PPB_AudioInput_Proxy::GetAudioInputConnectedHandles(
-    const HostResource& resource,
-    IPC::PlatformFileForTransit* foreign_socket_handle,
-    base::SharedMemoryHandle* foreign_shared_memory_handle,
-    uint32_t* shared_memory_length) {
-  // Get the audio interface which will give us the handles.
-  EnterHostFromHostResource<PPB_AudioInput_API> enter(resource);
-  if (enter.failed())
-    return PP_ERROR_NOINTERFACE;
-
-  // Get the socket handle for signaling.
-  int32_t socket_handle;
-  int32_t result = enter.object()->GetSyncSocket(&socket_handle);
-  if (result != PP_OK)
-    return result;
-
-  // socket_handle doesn't belong to us: don't close it.
-  *foreign_socket_handle = dispatcher()->ShareHandleWithRemote(
-      IntToPlatformFile(socket_handle), false);
-  if (*foreign_socket_handle == IPC::InvalidPlatformFileForTransit())
-    return PP_ERROR_FAILED;
-
-  // Get the shared memory for the buffer.
-  int shared_memory_handle;
-  result = enter.object()->GetSharedMemory(&shared_memory_handle,
-                                           shared_memory_length);
-  if (result != PP_OK)
-    return result;
-
-  // shared_memory_handle doesn't belong to us: don't close it.
-  *foreign_shared_memory_handle = dispatcher()->ShareHandleWithRemote(
-      IntToPlatformFile(shared_memory_handle), false);
-  if (*foreign_shared_memory_handle == IPC::InvalidPlatformFileForTransit())
-    return PP_ERROR_FAILED;
-
-  return PP_OK;
-}
-
-}  // namespace proxy
-}  // namespace ppapi