1 files changed, 91 insertions, 0 deletions
diff --git a/devel/electron38/files/patch-media_audio_sndio_sndio__output.h b/devel/electron38/files/patch-media_audio_sndio_sndio__output.h
new file mode 100644
index 000000000000..bb8603b68d9c
--- /dev/null
+++ b/devel/electron38/files/patch-media_audio_sndio_sndio__output.h
@@ -0,0 +1,91 @@
+--- media/audio/sndio/sndio_output.h.orig	2022-02-07 13:39:41 UTC
++++ media/audio/sndio/sndio_output.h
+@@ -0,0 +1,88 @@
++// 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 MEDIA_AUDIO_SNDIO_SNDIO_OUTPUT_H_
++#define MEDIA_AUDIO_SNDIO_SNDIO_OUTPUT_H_
++
++#include <pthread.h>
++#include <sndio.h>
++
++#include "base/time/tick_clock.h"
++#include "base/time/time.h"
++#include "media/audio/audio_io.h"
++
++namespace media {
++
++class AudioManagerBase;
++
++// Implementation of AudioOutputStream using sndio(7)
++class SndioAudioOutputStream : public AudioOutputStream {
++ public:
++  // The manager is creating this object
++  SndioAudioOutputStream(const AudioParameters& params,
++                         AudioManagerBase* manager);
++
++  SndioAudioOutputStream(const SndioAudioOutputStream&) = delete;
++  SndioAudioOutputStream& operator=(const SndioAudioOutputStream&) = delete;
++
++  virtual ~SndioAudioOutputStream();
++
++  // Implementation of AudioOutputStream.
++  bool Open() override;
++  void Close() override;
++  void Start(AudioSourceCallback* callback) override;
++  void Stop() override;
++  void SetVolume(double volume) override;
++  void GetVolume(double* volume) override;
++  void Flush() override;
++
++  friend void sndio_onmove(void *arg, int delta);
++  friend void sndio_onvol(void *arg, unsigned int vol);
++  friend void *sndio_threadstart(void *arg);
++
++ private:
++  enum StreamState {
++    kClosed,            // Not opened yet
++    kStopped,           // Device opened, but not started yet
++    kRunning,           // Started, device playing
++    kStopWait           // Stopping, waiting for the real-time thread to exit
++  };
++
++  // C-style call-backs
++  static void OnMoveCallback(void *arg, int delta);
++  static void OnVolCallback(void *arg, unsigned int vol);
++  static void* ThreadEntry(void *arg);
++
++  // Continuously moves data from the producer to the device
++  void ThreadLoop(void);
++
++  // Our creator, the audio manager needs to be notified when we close.
++  AudioManagerBase* manager;
++  // Parameters of the source
++  AudioParameters params;
++  // Source stores data here
++  std::unique_ptr<AudioBus> audio_bus;
++  // Call-back that produces data to play
++  AudioSourceCallback* source;
++  // Handle of the audio device
++  struct sio_hdl* hdl;
++  // Current state of the stream
++  enum StreamState state;
++  // High priority thread running ThreadLoop()
++  pthread_t thread;
++  // Protects vol, volpending and hw_delay
++  pthread_mutex_t mutex;
++  // Current volume in the 0..SIO_MAXVOL range
++  int vol;
++  // Set to 1 if volumes must be refreshed in the realtime thread
++  int volpending;
++  // Number of frames buffered in the hardware
++  int hw_delay;
++  // Temporary buffer where data is stored sndio-compatible format
++  char* buffer;
++};
++
++}  // namespace media
++
++#endif  // MEDIA_AUDIO_SNDIO_SNDIO_OUTPUT_H_