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Unified Diff: ppapi/shared_impl/ppb_audio_input_shared.h

Issue 11366038: Rewrite PPB_AudioInput_Dev to use the new-style host/resource. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: . Created 8 years, 1 month ago
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Index: ppapi/shared_impl/ppb_audio_input_shared.h
diff --git a/ppapi/shared_impl/ppb_audio_input_shared.h b/ppapi/shared_impl/ppb_audio_input_shared.h
deleted file mode 100644
index 4dfdab9361caa945d1dbd7f53feb9cb00564696e..0000000000000000000000000000000000000000
--- a/ppapi/shared_impl/ppb_audio_input_shared.h
+++ /dev/null
@@ -1,168 +0,0 @@
-// 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_SHARED_IMPL_PPB_AUDIO_INPUT_SHARED_H_
-#define PPAPI_SHARED_IMPL_PPB_AUDIO_INPUT_SHARED_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/shared_memory.h"
-#include "base/sync_socket.h"
-#include "base/threading/simple_thread.h"
-#include "ppapi/c/dev/ppb_audio_input_dev.h"
-#include "ppapi/c/ppb_audio_config.h"
-#include "ppapi/shared_impl/resource.h"
-#include "ppapi/shared_impl/scoped_pp_resource.h"
-#include "ppapi/shared_impl/tracked_callback.h"
-#include "ppapi/thunk/ppb_audio_input_api.h"
-
-namespace ppapi {
-
-// Implements the logic to map shared memory and run the audio thread signaled
-// from the sync socket. Both the proxy and the renderer implementation use
-// this code.
-class PPAPI_SHARED_EXPORT PPB_AudioInput_Shared
- : public Resource,
- public thunk::PPB_AudioInput_API,
- public base::DelegateSimpleThread::Delegate {
- public:
- // Used by the proxy.
- explicit PPB_AudioInput_Shared(const HostResource& audio_input);
- // Used by the impl.
- explicit PPB_AudioInput_Shared(PP_Instance instance);
- virtual ~PPB_AudioInput_Shared();
-
- // Resource overrides.
- virtual thunk::PPB_AudioInput_API* AsPPB_AudioInput_API() OVERRIDE;
-
- // Implementation of PPB_AudioInput_API non-trusted methods.
- virtual int32_t EnumerateDevices(
- PP_Resource* devices,
- scoped_refptr<TrackedCallback> callback) OVERRIDE;
- virtual int32_t Open(const std::string& device_id,
- PP_Resource config,
- PPB_AudioInput_Callback audio_input_callback,
- void* user_data,
- scoped_refptr<TrackedCallback> callback) OVERRIDE;
- virtual PP_Resource GetCurrentConfig() OVERRIDE;
- virtual PP_Bool StartCapture() OVERRIDE;
- virtual PP_Bool StopCapture() OVERRIDE;
- virtual void Close() OVERRIDE;
-
- void OnEnumerateDevicesComplete(int32_t result,
- const std::vector<DeviceRefData>& devices);
- void OnOpenComplete(int32_t result,
- base::SharedMemoryHandle shared_memory_handle,
- size_t shared_memory_size,
- base::SyncSocket::Handle socket_handle);
-
- static scoped_refptr<TrackedCallback> MakeIgnoredCompletionCallback(
- Resource* resource);
-
- protected:
- enum OpenState {
- BEFORE_OPEN,
- OPENED,
- CLOSED
- };
-
- // Subclasses should implement these methods to do impl- and proxy-specific
- // work.
- virtual int32_t InternalEnumerateDevices(
- PP_Resource* devices,
- scoped_refptr<TrackedCallback> callback) = 0;
- virtual int32_t InternalOpen(const std::string& device_id,
- PP_AudioSampleRate sample_rate,
- uint32_t sample_frame_count,
- scoped_refptr<TrackedCallback> callback) = 0;
- virtual PP_Bool InternalStartCapture() = 0;
- virtual PP_Bool InternalStopCapture() = 0;
- virtual void InternalClose() = 0;
-
- // Configures the current state to be capturing or not. The caller is
- // responsible for ensuring the new state is the opposite of the current one.
- //
- // This is the implementation for PPB_AudioInput.Start/StopCapture, except
- // that it does not actually notify the audio system to stop capture, it just
- // configures our object to stop generating callbacks. The actual stop
- // capture request will be done in the derived classes and will be different
- // from the proxy and the renderer.
- void SetStartCaptureState();
- void SetStopCaptureState();
-
- // Sets the shared memory and socket handles. This will automatically start
- // capture if we're currently set to capture.
- void SetStreamInfo(base::SharedMemoryHandle shared_memory_handle,
- size_t shared_memory_size,
- base::SyncSocket::Handle socket_handle);
-
- // Starts execution of the audio input thread.
- void StartThread();
-
- // Stops execution of the audio input thread.
- void StopThread();
-
- // DelegateSimpleThread::Delegate implementation.
- // Run on the audio input thread.
- virtual void Run();
-
- // The common implementation of OpenTrusted() and Open(). It will call
- // InternalOpen() to do impl- and proxy-specific work.
- // OpenTrusted() will call this methods with a NULL |audio_input_callback|,
- // in this case, the thread will not be run. This non-callback mode is used in
- // the renderer with the proxy, since the proxy handles the callback entirely
- // within the plugin process.
- int32_t CommonOpen(const std::string& device_id,
- PP_Resource config,
- PPB_AudioInput_Callback audio_input_callback,
- void* user_data,
- scoped_refptr<TrackedCallback> callback);
-
- OpenState open_state_;
-
- // True if capturing the stream.
- bool capturing_;
-
- // Socket used to notify us when new samples are available. This pointer is
- // created in SetStreamInfo().
- scoped_ptr<base::CancelableSyncSocket> socket_;
-
- // Sample buffer in shared memory. This pointer is created in
- // SetStreamInfo(). The memory is only mapped when the audio thread is
- // created.
- scoped_ptr<base::SharedMemory> shared_memory_;
-
- // The size of the sample buffer in bytes.
- size_t shared_memory_size_;
-
- // When the callback is set, this thread is spawned for calling it.
- scoped_ptr<base::DelegateSimpleThread> audio_input_thread_;
-
- // Callback to call when new samples are available.
- PPB_AudioInput_Callback audio_input_callback_;
-
- // User data pointer passed verbatim to the callback function.
- void* user_data_;
-
- scoped_refptr<TrackedCallback> enumerate_devices_callback_;
- scoped_refptr<TrackedCallback> open_callback_;
-
- // Owning reference to the current config object. This isn't actually used,
- // we just dish it out as requested by the plugin.
- ScopedPPResource config_;
-
- // Output parameter of EnumerateDevices(). It should not be accessed after
- // |enumerate_devices_callback_| is run.
- PP_Resource* devices_;
-
- ResourceObjectType resource_object_type_;
-
- DISALLOW_COPY_AND_ASSIGN(PPB_AudioInput_Shared);
-};
-
-} // namespace ppapi
-
-#endif // PPAPI_SHARED_IMPL_PPB_AUDIO_INPUT_SHARED_H_
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