1 | /* $Id: AudioAdapterImpl.cpp 65063 2017-01-03 11:15:49Z vboxsync $ */
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2 | /** @file
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3 | *
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4 | * VirtualBox COM class implementation
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5 | */
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6 |
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7 | /*
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8 | * Copyright (C) 2006-2016 Oracle Corporation
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9 | *
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10 | * This file is part of VirtualBox Open Source Edition (OSE), as
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11 | * available from http://www.virtualbox.org. This file is free software;
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12 | * you can redistribute it and/or modify it under the terms of the GNU
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13 | * General Public License (GPL) as published by the Free Software
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14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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15 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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16 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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17 | */
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18 |
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19 | #include "AudioAdapterImpl.h"
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20 | #include "MachineImpl.h"
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21 |
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22 | #include <iprt/cpp/utils.h>
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23 |
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24 | #include <VBox/settings.h>
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25 |
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26 | #include "AutoStateDep.h"
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27 | #include "AutoCaller.h"
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28 | #include "Logging.h"
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29 |
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30 |
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31 | // constructor / destructor
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32 | /////////////////////////////////////////////////////////////////////////////
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33 |
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34 | AudioAdapter::AudioAdapter()
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35 | : mParent(NULL)
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36 | {
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37 | }
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38 |
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39 | AudioAdapter::~AudioAdapter()
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40 | {
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41 | }
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42 |
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43 | HRESULT AudioAdapter::FinalConstruct()
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44 | {
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45 | return BaseFinalConstruct();
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46 | }
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47 |
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48 | void AudioAdapter::FinalRelease()
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49 | {
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50 | uninit();
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51 | BaseFinalRelease();
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52 | }
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53 |
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54 | // public initializer/uninitializer for internal purposes only
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55 | /////////////////////////////////////////////////////////////////////////////
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56 |
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57 | /**
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58 | * Initializes the audio adapter object.
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59 | *
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60 | * @param aParent Handle of the parent object.
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61 | */
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62 | HRESULT AudioAdapter::init(Machine *aParent)
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63 | {
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64 | LogFlowThisFunc(("aParent=%p\n", aParent));
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65 |
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66 | ComAssertRet(aParent, E_INVALIDARG);
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67 |
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68 | /* Enclose the state transition NotReady->InInit->Ready */
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69 | AutoInitSpan autoInitSpan(this);
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70 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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71 |
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72 | /* Get the default audio driver out of the system properties */
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73 | ComPtr<IVirtualBox> VBox;
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74 | HRESULT rc = aParent->COMGETTER(Parent)(VBox.asOutParam());
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75 | if (FAILED(rc)) return rc;
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76 | ComPtr<ISystemProperties> sysProps;
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77 | rc = VBox->COMGETTER(SystemProperties)(sysProps.asOutParam());
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78 | if (FAILED(rc)) return rc;
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79 | AudioDriverType_T defaultAudioDriver;
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80 | rc = sysProps->COMGETTER(DefaultAudioDriver)(&defaultAudioDriver);
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81 | if (FAILED(rc)) return rc;
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82 |
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83 | unconst(mParent) = aParent;
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84 | /* mPeer is left null */
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85 |
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86 | mData.allocate();
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87 | mData->driverType = defaultAudioDriver;
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88 |
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89 | /* Confirm a successful initialization */
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90 | autoInitSpan.setSucceeded();
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91 |
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92 | return S_OK;
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93 | }
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94 |
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95 | /**
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96 | * Initializes the audio adapter object given another audio adapter object
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97 | * (a kind of copy constructor). This object shares data with
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98 | * the object passed as an argument.
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99 | *
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100 | * @note This object must be destroyed before the original object
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101 | * it shares data with is destroyed.
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102 | *
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103 | * @note Locks @a aThat object for reading.
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104 | */
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105 | HRESULT AudioAdapter::init(Machine *aParent, AudioAdapter *aThat)
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106 | {
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107 | LogFlowThisFunc(("aParent=%p, aThat=%p\n", aParent, aThat));
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108 |
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109 | ComAssertRet(aParent && aThat, E_INVALIDARG);
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110 |
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111 | /* Enclose the state transition NotReady->InInit->Ready */
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112 | AutoInitSpan autoInitSpan(this);
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113 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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114 |
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115 | unconst(mParent) = aParent;
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116 | unconst(mPeer) = aThat;
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117 |
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118 | AutoCaller thatCaller(aThat);
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119 | AssertComRCReturnRC(thatCaller.rc());
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120 |
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121 | AutoReadLock thatLock(aThat COMMA_LOCKVAL_SRC_POS);
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122 | mData.share(aThat->mData);
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123 |
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124 | /* Confirm a successful initialization */
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125 | autoInitSpan.setSucceeded();
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126 |
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127 | return S_OK;
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128 | }
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129 |
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130 | /**
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131 | * Initializes the guest object given another guest object
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132 | * (a kind of copy constructor). This object makes a private copy of data
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133 | * of the original object passed as an argument.
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134 | *
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135 | * @note Locks @a aThat object for reading.
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136 | */
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137 | HRESULT AudioAdapter::initCopy(Machine *aParent, AudioAdapter *aThat)
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138 | {
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139 | LogFlowThisFunc(("aParent=%p, aThat=%p\n", aParent, aThat));
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140 |
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141 | ComAssertRet(aParent && aThat, E_INVALIDARG);
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142 |
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143 | /* Enclose the state transition NotReady->InInit->Ready */
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144 | AutoInitSpan autoInitSpan(this);
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145 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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146 |
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147 | unconst(mParent) = aParent;
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148 | /* mPeer is left null */
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149 |
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150 | AutoCaller thatCaller(aThat);
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151 | AssertComRCReturnRC(thatCaller.rc());
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152 |
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153 | AutoReadLock thatLock(aThat COMMA_LOCKVAL_SRC_POS);
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154 | mData.attachCopy(aThat->mData);
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155 |
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156 | /* Confirm a successful initialization */
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157 | autoInitSpan.setSucceeded();
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158 |
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159 | return S_OK;
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160 | }
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161 |
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162 | /**
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163 | * Uninitializes the instance and sets the ready flag to FALSE.
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164 | * Called either from FinalRelease() or by the parent when it gets destroyed.
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165 | */
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166 | void AudioAdapter::uninit()
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167 | {
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168 | LogFlowThisFunc(("\n"));
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169 |
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170 | /* Enclose the state transition Ready->InUninit->NotReady */
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171 | AutoUninitSpan autoUninitSpan(this);
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172 | if (autoUninitSpan.uninitDone())
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173 | return;
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174 |
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175 | mData.free();
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176 |
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177 | unconst(mPeer) = NULL;
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178 | unconst(mParent) = NULL;
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179 | }
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180 |
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181 | // IAudioAdapter properties
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182 | /////////////////////////////////////////////////////////////////////////////
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183 |
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184 | HRESULT AudioAdapter::getEnabled(BOOL *aEnabled)
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185 | {
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186 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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187 |
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188 | *aEnabled = mData->fEnabled;
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189 |
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190 | return S_OK;
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191 | }
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192 |
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193 | HRESULT AudioAdapter::setEnabled(BOOL aEnabled)
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194 | {
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195 | /* the machine needs to be mutable */
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196 | AutoMutableStateDependency adep(mParent);
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197 | if (FAILED(adep.rc())) return adep.rc();
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198 |
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199 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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200 |
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201 | if (mData->fEnabled != RT_BOOL(aEnabled))
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202 | {
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203 | mData.backup();
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204 | mData->fEnabled = RT_BOOL(aEnabled);
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205 |
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206 | alock.release();
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207 | AutoWriteLock mlock(mParent COMMA_LOCKVAL_SRC_POS); // mParent is const, needs no locking
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208 | mParent->i_setModified(Machine::IsModified_AudioAdapter);
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209 | }
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210 |
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211 | return S_OK;
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212 | }
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213 |
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214 | HRESULT AudioAdapter::getEnabledIn(BOOL *aEnabled)
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215 | {
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216 | NOREF(aEnabled);
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217 | return E_NOTIMPL;
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218 | }
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219 |
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220 | HRESULT AudioAdapter::setEnabledIn(BOOL aEnabled)
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221 | {
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222 | NOREF(aEnabled);
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223 | return E_NOTIMPL;
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224 | }
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225 |
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226 | HRESULT AudioAdapter::getEnabledOut(BOOL *aEnabled)
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227 | {
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228 | NOREF(aEnabled);
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229 | return E_NOTIMPL;
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230 | }
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231 |
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232 | HRESULT AudioAdapter::setEnabledOut(BOOL aEnabled)
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233 | {
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234 | NOREF(aEnabled);
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235 | return E_NOTIMPL;
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236 | }
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237 |
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238 | HRESULT AudioAdapter::getAudioDriver(AudioDriverType_T *aAudioDriver)
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239 | {
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240 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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241 |
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242 | *aAudioDriver = mData->driverType;
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243 |
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244 | return S_OK;
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245 | }
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246 |
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247 | HRESULT AudioAdapter::setAudioDriver(AudioDriverType_T aAudioDriver)
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248 | {
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249 |
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250 | /* the machine needs to be mutable */
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251 | AutoMutableOrSavedStateDependency adep(mParent);
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252 | if (FAILED(adep.rc())) return adep.rc();
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253 |
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254 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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255 |
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256 | HRESULT rc = S_OK;
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257 |
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258 | if (mData->driverType != aAudioDriver)
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259 | {
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260 | if (settings::MachineConfigFile::isAudioDriverAllowedOnThisHost(aAudioDriver))
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261 | {
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262 | mData.backup();
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263 | mData->driverType = aAudioDriver;
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264 | alock.release();
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265 | AutoWriteLock mlock(mParent COMMA_LOCKVAL_SRC_POS); // mParent is const, needs no locking
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266 | mParent->i_setModified(Machine::IsModified_AudioAdapter);
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267 | }
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268 | else
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269 | {
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270 | AssertMsgFailed(("Wrong audio driver type %d\n", aAudioDriver));
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271 | rc = E_FAIL;
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272 | }
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273 | }
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274 |
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275 | return rc;
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276 | }
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277 |
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278 | HRESULT AudioAdapter::getAudioController(AudioControllerType_T *aAudioController)
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279 | {
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280 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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281 |
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282 | *aAudioController = mData->controllerType;
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283 |
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284 | return S_OK;
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285 | }
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286 |
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287 | HRESULT AudioAdapter::setAudioController(AudioControllerType_T aAudioController)
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288 | {
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289 | /* the machine needs to be mutable */
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290 | AutoMutableStateDependency adep(mParent);
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291 | if (FAILED(adep.rc())) return adep.rc();
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292 |
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293 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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294 |
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295 | HRESULT rc = S_OK;
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296 |
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297 | if (mData->controllerType != aAudioController)
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298 | {
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299 | AudioCodecType_T defaultCodec;
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300 |
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301 | /*
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302 | * which audio hardware type are we supposed to use?
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303 | */
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304 | switch (aAudioController)
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305 | {
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306 | /* codec type needs to match the controller. */
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307 | case AudioControllerType_AC97:
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308 | defaultCodec = AudioCodecType_STAC9700;
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309 | break;
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310 | case AudioControllerType_SB16:
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311 | defaultCodec = AudioCodecType_SB16;
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312 | break;
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313 | case AudioControllerType_HDA:
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314 | defaultCodec = AudioCodecType_STAC9221;
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315 | break;
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316 |
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317 | default:
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318 | AssertMsgFailed(("Wrong audio controller type %d\n", aAudioController));
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319 | defaultCodec = AudioCodecType_Null; /* Shut up MSC */
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320 | rc = E_FAIL;
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321 | }
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322 | if (rc == S_OK)
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323 | {
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324 | mData.backup();
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325 | mData->controllerType = aAudioController;
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326 | mData->codecType = defaultCodec;
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327 | alock.release();
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328 | AutoWriteLock mlock(mParent COMMA_LOCKVAL_SRC_POS); // mParent is const, needs no locking
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329 | mParent->i_setModified(Machine::IsModified_AudioAdapter);
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330 | }
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331 | }
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332 |
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333 | return rc;
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334 | }
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335 |
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336 | HRESULT AudioAdapter::getAudioCodec(AudioCodecType_T *aAudioCodec)
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337 | {
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338 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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339 |
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340 | *aAudioCodec = mData->codecType;
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341 |
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342 | return S_OK;
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343 | }
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344 |
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345 | HRESULT AudioAdapter::setAudioCodec(AudioCodecType_T aAudioCodec)
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346 | {
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347 | /* the machine needs to be mutable */
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348 | AutoMutableStateDependency adep(mParent);
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349 | if (FAILED(adep.rc())) return adep.rc();
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350 |
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351 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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352 |
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353 | HRESULT rc = S_OK;
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354 |
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355 | /*
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356 | * ensure that the codec type matches the audio controller
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357 | */
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358 | switch (mData->controllerType)
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359 | {
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360 | case AudioControllerType_AC97:
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361 | {
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362 | if ( (aAudioCodec != AudioCodecType_STAC9700)
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363 | && (aAudioCodec != AudioCodecType_AD1980))
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364 | rc = E_INVALIDARG;
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365 | break;
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366 | }
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367 |
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368 | case AudioControllerType_SB16:
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369 | {
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370 | if (aAudioCodec != AudioCodecType_SB16)
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371 | rc = E_INVALIDARG;
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372 | break;
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373 | }
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374 |
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375 | case AudioControllerType_HDA:
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376 | {
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377 | if (aAudioCodec != AudioCodecType_STAC9221)
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378 | rc = E_INVALIDARG;
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379 | break;
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380 | }
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381 |
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382 | default:
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383 | AssertMsgFailed(("Wrong audio controller type %d\n",
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384 | mData->controllerType));
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385 | rc = E_FAIL;
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386 | }
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387 |
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388 | if (!SUCCEEDED(rc))
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389 | return setError(rc,
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390 | tr("Invalid audio codec type %d"),
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391 | aAudioCodec);
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392 |
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393 | if (mData->codecType != aAudioCodec)
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394 | {
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395 | mData.backup();
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396 | mData->codecType = aAudioCodec;
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397 | alock.release();
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398 | AutoWriteLock mlock(mParent COMMA_LOCKVAL_SRC_POS); // mParent is const, needs no locking
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399 | mParent->i_setModified(Machine::IsModified_AudioAdapter);
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400 | }
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401 |
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402 | return rc;
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403 | }
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404 |
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405 | HRESULT AudioAdapter::getPropertiesList(std::vector<com::Utf8Str>& aProperties)
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406 | {
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407 | using namespace settings;
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408 |
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409 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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410 |
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411 | aProperties.resize(0);
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412 | StringsMap::const_iterator cit = mData->properties.begin();
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413 | while(cit != mData->properties.end())
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414 | {
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415 | Utf8Str key = cit->first;
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416 | aProperties.push_back(cit->first);
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417 | ++cit;
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418 | }
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419 |
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420 | return S_OK;
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421 | }
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422 |
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423 | HRESULT AudioAdapter::getProperty(const com::Utf8Str &aKey, com::Utf8Str &aValue)
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424 | {
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425 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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426 |
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427 | settings::StringsMap::const_iterator cit = mData->properties.find(aKey);
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428 | if (cit != mData->properties.end())
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429 | aValue = cit->second;
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430 |
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431 | return S_OK;
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432 | }
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433 |
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434 | HRESULT AudioAdapter::setProperty(const com::Utf8Str &aKey, const com::Utf8Str &aValue)
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435 | {
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436 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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437 |
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438 | /* Generic properties processing.
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439 | * Look up the old value first; if nothing's changed then do nothing.
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440 | */
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441 | Utf8Str strOldValue;
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442 |
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443 | settings::StringsMap::const_iterator cit = mData->properties.find(aKey);
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444 | if (cit != mData->properties.end())
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445 | strOldValue = cit->second;
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446 |
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447 | if (strOldValue != aValue)
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448 | {
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449 | if (aValue.isEmpty())
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450 | mData->properties.erase(aKey);
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451 | else
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452 | mData->properties[aKey] = aValue;
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453 | }
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454 |
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455 | alock.release();
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456 |
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457 | return S_OK;
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458 | }
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459 |
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460 | // IAudioAdapter methods
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461 | /////////////////////////////////////////////////////////////////////////////
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462 |
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463 | // public methods only for internal purposes
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464 | /////////////////////////////////////////////////////////////////////////////
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465 |
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466 | /**
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467 | * Loads settings from the given machine node.
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468 | * May be called once right after this object creation.
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469 | *
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470 | * @param data Configuration settings.
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471 | *
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472 | * @note Locks this object for writing.
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473 | */
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474 | HRESULT AudioAdapter::i_loadSettings(const settings::AudioAdapter &data)
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475 | {
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476 | AutoCaller autoCaller(this);
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477 | AssertComRCReturnRC(autoCaller.rc());
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478 |
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479 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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480 |
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481 | /* Note: we assume that the default values for attributes of optional
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482 | * nodes are assigned in the Data::Data() constructor and don't do it
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483 | * here. It implies that this method may only be called after constructing
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484 | * a new AudioAdapter object while all its data fields are in the default
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485 | * values. Exceptions are fields whose creation time defaults don't match
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486 | * values that should be applied when these fields are not explicitly set
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487 | * in the settings file (for backwards compatibility reasons). This takes
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488 | * place when a setting of a newly created object must default to A while
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489 | * the same setting of an object loaded from the old settings file must
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490 | * default to B. */
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491 | mData.assignCopy(&data);
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492 |
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493 | return S_OK;
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494 | }
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495 |
|
---|
496 | /**
|
---|
497 | * Saves settings to the given machine node.
|
---|
498 | *
|
---|
499 | * @param data Configuration settings.
|
---|
500 | *
|
---|
501 | * @note Locks this object for reading.
|
---|
502 | */
|
---|
503 | HRESULT AudioAdapter::i_saveSettings(settings::AudioAdapter &data)
|
---|
504 | {
|
---|
505 | AutoCaller autoCaller(this);
|
---|
506 | AssertComRCReturnRC(autoCaller.rc());
|
---|
507 |
|
---|
508 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
|
---|
509 |
|
---|
510 | data = *mData.data();
|
---|
511 |
|
---|
512 | return S_OK;
|
---|
513 | }
|
---|
514 |
|
---|
515 | /**
|
---|
516 | * @note Locks this object for writing.
|
---|
517 | */
|
---|
518 | void AudioAdapter::i_rollback()
|
---|
519 | {
|
---|
520 | /* sanity */
|
---|
521 | AutoCaller autoCaller(this);
|
---|
522 | AssertComRCReturnVoid(autoCaller.rc());
|
---|
523 |
|
---|
524 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
|
---|
525 |
|
---|
526 | mData.rollback();
|
---|
527 | }
|
---|
528 |
|
---|
529 | /**
|
---|
530 | * @note Locks this object for writing, together with the peer object (also
|
---|
531 | * for writing) if there is one.
|
---|
532 | */
|
---|
533 | void AudioAdapter::i_commit()
|
---|
534 | {
|
---|
535 | /* sanity */
|
---|
536 | AutoCaller autoCaller(this);
|
---|
537 | AssertComRCReturnVoid(autoCaller.rc());
|
---|
538 |
|
---|
539 | /* sanity too */
|
---|
540 | AutoCaller peerCaller(mPeer);
|
---|
541 | AssertComRCReturnVoid(peerCaller.rc());
|
---|
542 |
|
---|
543 | /* lock both for writing since we modify both (mPeer is "master" so locked
|
---|
544 | * first) */
|
---|
545 | AutoMultiWriteLock2 alock(mPeer, this COMMA_LOCKVAL_SRC_POS);
|
---|
546 |
|
---|
547 | if (mData.isBackedUp())
|
---|
548 | {
|
---|
549 | mData.commit();
|
---|
550 | if (mPeer)
|
---|
551 | {
|
---|
552 | /* attach new data to the peer and reshare it */
|
---|
553 | mPeer->mData.attach(mData);
|
---|
554 | }
|
---|
555 | }
|
---|
556 | }
|
---|
557 |
|
---|
558 | /**
|
---|
559 | * @note Locks this object for writing, together with the peer object
|
---|
560 | * represented by @a aThat (locked for reading).
|
---|
561 | */
|
---|
562 | void AudioAdapter::i_copyFrom(AudioAdapter *aThat)
|
---|
563 | {
|
---|
564 | AssertReturnVoid(aThat != NULL);
|
---|
565 |
|
---|
566 | /* sanity */
|
---|
567 | AutoCaller autoCaller(this);
|
---|
568 | AssertComRCReturnVoid(autoCaller.rc());
|
---|
569 |
|
---|
570 | /* sanity too */
|
---|
571 | AutoCaller thatCaller(aThat);
|
---|
572 | AssertComRCReturnVoid(thatCaller.rc());
|
---|
573 |
|
---|
574 | /* peer is not modified, lock it for reading (aThat is "master" so locked
|
---|
575 | * first) */
|
---|
576 | AutoReadLock rl(aThat COMMA_LOCKVAL_SRC_POS);
|
---|
577 | AutoWriteLock wl(this COMMA_LOCKVAL_SRC_POS);
|
---|
578 |
|
---|
579 | /* this will back up current data */
|
---|
580 | mData.assignCopy(aThat->mData);
|
---|
581 | }
|
---|
582 | /* vi: set tabstop=4 shiftwidth=4 expandtab: */
|
---|