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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "ash/system/win/audio/tray_audio_delegate_win.h" | |
| 6 | |
| 7 #include <audiopolicy.h> | |
| 8 #include <cmath> | |
| 9 | |
| 10 #include "media/audio/win/core_audio_util_win.h" | |
| 11 | |
| 12 using base::win::ScopedComPtr; | |
| 13 | |
| 14 namespace { | |
| 15 | |
| 16 // Volume value which should be considered as muted in range [0, 100]. | |
| 17 const int kMuteThresholdPercent = 1; | |
| 18 | |
| 19 // Lowest volume which is considered to be audible in the range [0, 100]. | |
| 20 const int kDefaultUnmuteVolumePercent = 4; | |
| 21 | |
| 22 } // namespace | |
| 23 | |
| 24 namespace ash { | |
| 25 namespace system { | |
| 26 | |
| 27 void TrayAudioDelegateWin::AdjustOutputVolumeToAudibleLevel() { | |
| 28 if (GetOutputVolumeLevel() <= kMuteThresholdPercent) | |
| 29 SetOutputVolumeLevel(kDefaultUnmuteVolumePercent); | |
| 30 } | |
| 31 | |
| 32 int TrayAudioDelegateWin::GetOutputDefaultVolumeMuteLevel() { | |
| 33 return kMuteThresholdPercent; | |
| 34 } | |
| 35 | |
| 36 int TrayAudioDelegateWin::GetOutputVolumeLevel() { | |
| 37 ScopedComPtr<ISimpleAudioVolume> volume_control = | |
| 38 CreateDefaultVolumeControl(); | |
| 39 if (!volume_control.get()) | |
| 40 return 0; | |
| 41 | |
| 42 float level = 0.0f; | |
| 43 if (FAILED(volume_control->GetMasterVolume(&level))) | |
| 44 return 0; | |
| 45 | |
| 46 // MSVC prior to 2013 doesn't have a round function. The below code is not | |
| 47 // conformant to C99 round(), but since we know that 0 <= level <= 100, it | |
| 48 // should be ok. | |
| 49 return static_cast<int>(level + 0.5); | |
| 50 } | |
| 51 | |
| 52 int TrayAudioDelegateWin::GetActiveOutputDeviceIconId() { | |
| 53 return kNoAudioDeviceIcon; | |
| 54 } | |
| 55 | |
| 56 bool TrayAudioDelegateWin::HasAlternativeSources() { | |
| 57 return false; | |
| 58 } | |
| 59 | |
| 60 bool TrayAudioDelegateWin::IsOutputAudioMuted() { | |
| 61 ScopedComPtr<ISimpleAudioVolume> volume_control = | |
| 62 CreateDefaultVolumeControl(); | |
| 63 | |
| 64 if (!volume_control.get()) | |
| 65 return false; | |
| 66 | |
| 67 BOOL mute = FALSE; | |
| 68 if (FAILED(volume_control->GetMute(&mute))) | |
| 69 return false; | |
| 70 | |
| 71 return !!mute; | |
| 72 } | |
| 73 | |
| 74 void TrayAudioDelegateWin::SetOutputAudioIsMuted(bool is_muted) { | |
| 75 ScopedComPtr<ISimpleAudioVolume> volume_control = | |
| 76 CreateDefaultVolumeControl(); | |
| 77 | |
| 78 if (!volume_control.get()) | |
| 79 return; | |
| 80 | |
| 81 volume_control->SetMute(is_muted, NULL); | |
| 82 } | |
| 83 | |
| 84 void TrayAudioDelegateWin::SetOutputVolumeLevel(int level) { | |
| 85 ScopedComPtr<ISimpleAudioVolume> volume_control = | |
| 86 CreateDefaultVolumeControl(); | |
| 87 | |
| 88 if (!volume_control.get()) | |
| 89 return; | |
| 90 | |
| 91 float volume_level = static_cast<float>(level) / 100.0f; | |
| 92 volume_control->SetMasterVolume(volume_level, NULL); | |
| 93 } | |
| 94 | |
| 95 void TrayAudioDelegateWin::SetInternalSpeakerChannelMode( | |
| 96 AudioChannelMode mode) { | |
| 97 } | |
| 98 | |
| 99 void TrayAudioDelegateWin::SetActiveHDMIOutoutRediscoveringIfNecessary( | |
| 100 bool force_rediscovering) { | |
| 101 } | |
| 102 | |
| 103 ScopedComPtr<ISimpleAudioVolume> | |
| 104 TrayAudioDelegateWin::CreateDefaultVolumeControl() { | |
| 105 ScopedComPtr<ISimpleAudioVolume> volume_control; | |
| 106 ScopedComPtr<IAudioSessionManager> session_manager; | |
| 107 | |
| 108 ScopedComPtr<IMMDevice> device = | |
| 109 media::CoreAudioUtil::CreateDefaultDevice(eRender, eConsole); | |
| 110 if (!device.get() || | |
| 111 FAILED(device->Activate(__uuidof(IAudioSessionManager), CLSCTX_ALL, NULL, | |
| 112 session_manager.ReceiveVoid()))) { | |
| 113 return volume_control; | |
| 114 } | |
| 115 | |
| 116 session_manager->GetSimpleAudioVolume(NULL, FALSE, | |
| 117 volume_control.Receive()); | |
| 118 | |
| 119 return volume_control; | |
| 120 } | |
| 121 | |
| 122 } // namespace system | |
| 123 } // namespace ash | |
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Chromium Code Reviews
Issue 2075813002:
Remove ash_shell audio system tray item on Windows. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master