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// Copyright (c) 2010 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 "base/basictypes.h"
#include "base/shared_memory.h"
#include "base/sync_socket.h"
#include "ipc/ipc_platform_file.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_module.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/cpp/completion_callback.h"
#include "ppapi/proxy/interface_proxy.h"
#include "ppapi/proxy/proxy_non_thread_safe_ref_count.h"
struct PPB_Audio_Dev;
namespace pp {
namespace proxy {
class PPB_Audio_Proxy : public InterfaceProxy {
public:
PPB_Audio_Proxy(Dispatcher* dispatcher, const void* target_interface);
virtual ~PPB_Audio_Proxy();
const PPB_Audio_Dev* ppb_audio_target() const {
return static_cast<const PPB_Audio_Dev*>(target_interface());
}
// InterfaceProxy implementation.
virtual const void* GetSourceInterface() const;
virtual InterfaceID GetInterfaceId() const;
virtual bool OnMessageReceived(const IPC::Message& msg);
private:
// Plugin->renderer message handlers.
void OnMsgCreate(PP_Instance instance_id,
PP_Resource config_id,
PP_Resource* result);
void OnMsgStartOrStop(PP_Resource audio_id, bool play);
// Renderer->plugin message handlers.
void OnMsgNotifyAudioStreamCreated(
PP_Resource audio_id,
int32_t result_code,
IPC::PlatformFileForTransit socket_handle,
base::SharedMemoryHandle shared_memory_handle,
uint32_t shared_memory_length);
void AudioChannelConnected(int32_t result, PP_Resource 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(
PP_Resource resource,
IPC::PlatformFileForTransit* foreign_socket_handle,
base::SharedMemoryHandle* foreign_shared_memory_handle,
uint32_t* shared_memory_length);
CompletionCallbackFactory<PPB_Audio_Proxy,
ProxyNonThreadSafeRefCount> callback_factory_;
DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Proxy);
};
} // namespace proxy
} // namespace pp
#endif // PPAPI_PROXY_PPB_AUDIO_PROXY_H_