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// 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.
#ifndef PPAPI_PROXY_PPB_AUDIO_INPUT_PROXY_H_
#define PPAPI_PROXY_PPB_AUDIO_INPUT_PROXY_H_
#include <string>
#include <utility>
#include <vector>
#include "base/basictypes.h"
#include "base/shared_memory.h"
#include "base/sync_socket.h"
#include "ipc/ipc_platform_file.h"
#include "ppapi/c/dev/ppb_audio_input_dev.h"
#include "ppapi/c/ppb_audio_config.h"
#include "ppapi/proxy/interface_proxy.h"
#include "ppapi/proxy/proxy_completion_callback_factory.h"
#include "ppapi/proxy/serialized_structs.h"
#include "ppapi/utility/completion_callback_factory.h"
namespace ppapi {
class HostResource;
struct DeviceRefData;
namespace proxy {
class PPB_AudioInput_Proxy : public InterfaceProxy {
public:
explicit PPB_AudioInput_Proxy(Dispatcher* dispatcher);
virtual ~PPB_AudioInput_Proxy();
static PP_Resource CreateProxyResource0_1(
PP_Instance instance,
PP_Resource config,
PPB_AudioInput_Callback audio_input_callback,
void* user_data);
static PP_Resource CreateProxyResource(PP_Instance instance);
// InterfaceProxy implementation.
virtual bool OnMessageReceived(const IPC::Message& msg);
static const ApiID kApiID = API_ID_PPB_AUDIO_INPUT_DEV;
private:
// Message handlers.
// Plugin->renderer message handlers.
void OnMsgCreate(PP_Instance instance, ppapi::HostResource* result);
void OnMsgEnumerateDevices(const ppapi::HostResource& audio_input);
void OnMsgOpen(const ppapi::HostResource& audio_input,
const std::string& device_id,
int32_t sample_rate,
uint32_t sample_frame_count);
void OnMsgStartOrStop(const ppapi::HostResource& audio_input, bool capture);
void OnMsgClose(const ppapi::HostResource& audio_input);
// Renderer->plugin message handlers.
void OnMsgEnumerateDevicesACK(
const ppapi::HostResource& audio_input,
int32_t result,
const std::vector<ppapi::DeviceRefData>& devices);
void OnMsgOpenACK(const ppapi::HostResource& audio_input,
int32_t result,
const ppapi::proxy::SerializedHandle& socket_handle,
const ppapi::proxy::SerializedHandle& handle);
void EnumerateDevicesACKInHost(int32_t result,
const ppapi::HostResource& audio_input);
void OpenACKInHost(int32_t result, const ppapi::HostResource& audio_input);
// In the renderer, this is called in response to an OpenACK message.
// It will retrieve the shared memory and socket handles and place them into
// the given out params. The return value is a PPAPI error code.
//
// The input arguments should be initialized to 0 or -1, depending on the
// platform's default invalid handle values. On error, some of these
// arguments may be written to, and others may be untouched, depending on
// where the error occurred.
int32_t GetAudioInputConnectedHandles(
const ppapi::HostResource& resource,
IPC::PlatformFileForTransit* foreign_socket_handle,
base::SharedMemoryHandle* foreign_shared_memory_handle,
uint32_t* shared_memory_length);
ProxyCompletionCallbackFactory<PPB_AudioInput_Proxy> callback_factory_;
DISALLOW_COPY_AND_ASSIGN(PPB_AudioInput_Proxy);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_PPB_AUDIO_INPUT_PROXY_H_
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