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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_PROXY_H_
#define PPAPI_PROXY_PPB_AUDIO_PROXY_H_
#include <utility>
#include "base/basictypes.h"
#include "base/memory/shared_memory.h"
#include "base/sync_socket.h"
#include "ipc/ipc_platform_file.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/ppb_audio.h"
#include "ppapi/c/ppb_audio_config.h"
#include "ppapi/proxy/interface_proxy.h"
#include "ppapi/proxy/proxy_completion_callback_factory.h"
#include "ppapi/utility/completion_callback_factory.h"
namespace ppapi {
class AudioCallbackCombined;
class HostResource;
namespace proxy {
class SerializedHandle;
class PPB_Audio_Proxy : public InterfaceProxy {
public:
PPB_Audio_Proxy(Dispatcher* dispatcher);
virtual ~PPB_Audio_Proxy();
// Creates an Audio object in the plugin process.
static PP_Resource CreateProxyResource(
PP_Instance instance_id,
PP_Resource config_id,
const AudioCallbackCombined& audio_callback,
void* user_data);
// InterfaceProxy implementation.
virtual bool OnMessageReceived(const IPC::Message& msg);
static const ApiID kApiID = API_ID_PPB_AUDIO;
private:
// Plugin->renderer message handlers.
void OnMsgCreate(PP_Instance instance_id,
int32_t sample_rate,
uint32_t sample_frame_count,
ppapi::HostResource* result);
void OnMsgStartOrStop(const ppapi::HostResource& audio_id, bool play);
// Renderer->plugin message handlers.
void OnMsgNotifyAudioStreamCreated(
const ppapi::HostResource& audio_id,
int32_t result_code,
ppapi::proxy::SerializedHandle socket_handle,
ppapi::proxy::SerializedHandle handle);
void AudioChannelConnected(int32_t result,
const ppapi::HostResource& resource);
// In the renderer, this is called in response to a stream created 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 GetAudioConnectedHandles(
const ppapi::HostResource& resource,
IPC::PlatformFileForTransit* foreign_socket_handle,
base::SharedMemoryHandle* foreign_shared_memory_handle,
uint32_t* shared_memory_length);
ProxyCompletionCallbackFactory<PPB_Audio_Proxy> callback_factory_;
DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Proxy);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_PPB_AUDIO_PROXY_H_
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