First round of dead file removal

experimental/conways_life/audio/audio_player.cc

-// Copyright (c) 2011 The Native Client Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "experimental/conways_life/audio/audio_player.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <algorithm>
-
-#include "experimental/conways_life/audio/audio_source.h"
-#include "experimental/conways_life/threading/scoped_mutex_lock.h"
-#include "ppapi/c/pp_errors.h"
-#include "ppapi/cpp/audio.h"
-#include "ppapi/cpp/audio_config.h"
-#include "ppapi/cpp/module.h"
-
-namespace audio {
-
-AudioPlayer::AudioPlayer(pp::Instance* instance)
-  : audio_source_(NULL),
-    playback_offset_(0),
-    pp_audio_(NULL),
-    instance_(instance),
-    factory_(this) {
-  pthread_mutex_init(&mutex_, NULL);
-}
-
-AudioPlayer::~AudioPlayer() {
-  ClearAudioSource();
-  ClearPepperAudio();
-  pthread_mutex_destroy(&mutex_);
-}
-
-void AudioPlayer::AssignAudioSource(AudioSource* source) {
-  threading::ScopedMutexLock scoped_mutex(&mutex_);
-  ClearPepperAudio();
-  playback_offset_ = 0;
-  if (audio_source_ != source) {
-    ClearAudioSource();
-    audio_source_ = source;
-  }
-}
-
-void AudioPlayer::Play() {
-  assert(audio_source_ != NULL);  // Forgot to assign a sound source?
-  pp::CompletionCallback cc = factory_.NewCallback(&AudioPlayer::InternalPlay);
-  pp::Module::Get()->core()->CallOnMainThread(0, cc, PP_OK);
-}
-
-void AudioPlayer::Stop() {
-  pp::CompletionCallback cc = factory_.NewCallback(&AudioPlayer::InternalStop);
-  pp::Module::Get()->core()->CallOnMainThread(0, cc, PP_OK);
-}
-
-bool AudioPlayer::IsReady() const {
-  return audio_source_ != NULL && audio_source_->IsReady();
-}
-
-void AudioPlayer::AudioCallback(void* sample_buffer,
-                                uint32_t out_buffer_size,
-                                void* user_data) {
-  AudioPlayer* player = reinterpret_cast<AudioPlayer*>(user_data);
-  char* out_buffer = reinterpret_cast<char*>(sample_buffer);
-
-  // Copy the next chunk of samples from the audio source.
-  AudioSource* audio_source = player->audio_source_;
-  const char* src_buffer = audio_source->GetAudioData();
-  uint32_t src_buffer_size = audio_source->GetAudioDataSize();
-  uint32_t remaining_bytes = src_buffer_size - player->playback_offset_ + 1;
-  uint32_t copy_size = std::min(out_buffer_size, remaining_bytes);
-
-  if (copy_size == 0) {
-    // No samples left; fill the buffer with 0s and stop the player.
-    ::memset(out_buffer, 0, out_buffer_size);
-    player->Stop();
-  } else {
-    // Copy the next chunk of samples to the audio buffer; if it's not enough
-    // to fill the buffer add 0s.
-    const char* src_buffer_start = src_buffer + player->playback_offset_;
-    ::memcpy(out_buffer, src_buffer_start, copy_size);
-    if (copy_size < out_buffer_size) {
-      ::memset(out_buffer + copy_size, 0, out_buffer_size - copy_size);
-    }
-    player->playback_offset_ += copy_size;
-  }
-}
-
-void AudioPlayer::InternalPlay(int32_t result) {
-  assert(pp::Module::Get()->core()->IsMainThread());
-  threading::ScopedMutexLock scoped_mutex(&mutex_);
-  if (pp_audio_ == NULL && audio_source_->IsReady()) {
-    CreatePepperAudio();
-  }
-  if (pp_audio_ != NULL) {
-    playback_offset_ = 0;
-    pp_audio_->StartPlayback();
-  }
-}
-
-void AudioPlayer::InternalStop(int32_t result) {
-  assert((pp::Module::Get()->core()->IsMainThread()));
-  threading::ScopedMutexLock scoped_mutex(&mutex_);
-  if (pp_audio_ != NULL) {
-    pp_audio_->StopPlayback();
-  }
-}
-
-void AudioPlayer::ClearAudioSource() {
-  if (audio_source_ != NULL) {
-    delete audio_source_;
-    audio_source_ = NULL;
-  }
-}
-
-void AudioPlayer::ClearPepperAudio() {
-  if (pp_audio_ != NULL) {
-    delete pp_audio_;
-    pp_audio_ = NULL;
-  }
-}
-
-bool AudioPlayer::CreatePepperAudio() {
-  assert(pp::Module::Get()->core()->IsMainThread());
-
-  // Create audio config per sound info.
-  PP_AudioSampleRate rate = (audio_source_->GetSampleRate() == 44100) ?
-      PP_AUDIOSAMPLERATE_44100 : PP_AUDIOSAMPLERATE_48000;
-  pp::AudioConfig config(instance_, rate, 4096);
-  if (config.is_null()) {
-    printf("Error: could not create audio config.\n");
-    return false;
-  }
-  // Create audio object.
-  pp_audio_ = new pp::Audio(instance_, config, AudioCallback, this);
-  if (pp_audio_->is_null()) {
-    printf("Error: could not create audio player.\n");
-    ClearPepperAudio();
-  }
-  return true;
-}
-
-}  // namespace audio