| /* |
| * Copyright (C) 2020 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(GPU_PROCESS) && ENABLE(WEB_AUDIO) |
| |
| #include "Connection.h" |
| #include "GPUProcessConnection.h" |
| #include "IPCSemaphore.h" |
| #include "RemoteAudioDestinationIdentifier.h" |
| #include <WebCore/AudioIOCallback.h> |
| #include <wtf/CrossThreadQueue.h> |
| #include <wtf/MediaTime.h> |
| #include <wtf/Threading.h> |
| |
| #if PLATFORM(COCOA) |
| #include "SharedRingBufferStorage.h" |
| #include <WebCore/AudioDestinationCocoa.h> |
| #else |
| #include <WebCore/AudioDestinationGStreamer.h> |
| #endif |
| |
| namespace WebCore { |
| class CARingBuffer; |
| class WebAudioBufferList; |
| } |
| |
| namespace WebKit { |
| |
| class SharedRingBufferFrameBounds; |
| |
| class RemoteAudioDestinationProxy final |
| #if PLATFORM(COCOA) |
| : public WebCore::AudioDestinationCocoa |
| #else |
| : public WebCore::AudioDestinationGStreamer |
| #endif |
| , public GPUProcessConnection::Client { |
| WTF_MAKE_NONCOPYABLE(RemoteAudioDestinationProxy); |
| public: |
| using AudioIOCallback = WebCore::AudioIOCallback; |
| using WebCore::AudioDestination::ref; |
| using WebCore::AudioDestination::deref; |
| |
| static Ref<AudioDestination> create(AudioIOCallback&, const String& inputDeviceId, unsigned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate); |
| |
| RemoteAudioDestinationProxy(AudioIOCallback&, const String& inputDeviceId, unsigned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate); |
| ~RemoteAudioDestinationProxy(); |
| |
| private: |
| void startRendering(CompletionHandler<void(bool)>&&) final; |
| void stopRendering(CompletionHandler<void(bool)>&&) final; |
| |
| void startRenderingThread(); |
| void stopRenderingThread(); |
| void renderQuantum(); |
| |
| IPC::Connection* connection(); |
| IPC::Connection* existingConnection(); |
| |
| // GPUProcessConnection::Client. |
| void gpuProcessConnectionDidClose(GPUProcessConnection&) final; |
| |
| #if !PLATFORM(COCOA) |
| bool isPlaying() final { return false; } |
| void setIsPlaying(bool) { } |
| float sampleRate() const final { return 0; } |
| unsigned numberOfOutputChannels() const { return m_numberOfOutputChannels; } |
| #endif |
| |
| #if PLATFORM(COCOA) |
| void storageChanged(SharedMemory*, const WebCore::CAAudioStreamDescription& format, size_t frameCount); |
| #endif |
| |
| RemoteAudioDestinationIdentifier m_destinationID; // Call destinationID() getter to make sure the destinationID is valid. |
| |
| WeakPtr<GPUProcessConnection> m_gpuProcessConnection; |
| #if PLATFORM(COCOA) |
| uint64_t m_numberOfFrames { 0 }; |
| std::unique_ptr<WebCore::CARingBuffer> m_ringBuffer; |
| std::unique_ptr<WebCore::WebAudioBufferList> m_audioBufferList; |
| uint64_t m_currentFrame { 0 }; |
| float m_sampleRate; |
| #else |
| unsigned m_numberOfOutputChannels; |
| #endif |
| IPC::Semaphore m_renderSemaphore; |
| |
| String m_inputDeviceId; |
| unsigned m_numberOfInputChannels; |
| |
| RefPtr<Thread> m_renderThread; |
| std::atomic<bool> m_shouldStopThread { false }; |
| }; |
| |
| } // namespace WebKit |
| |
| #endif // ENABLE(GPU_PROCESS) && ENABLE(WEB_AUDIO) |