Initial commit

2026-04-14 00:04:05 +09:00 · 2026-03-15 06:02:56 +09:00
commit 010c235e46
113 changed files with 28943 additions and 0 deletions
--- a/app/VCVirtualDevice.cpp
+++ b/app/VCVirtualDevice.cpp
@@ -0,0 +1,119 @@
+// This file is part of Background Music.
+//
+// Background Music is free software: you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation, either version 2 of the
+// License, or (at your option) any later version.
+//
+// Background Music is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Background Music. If not, see <http://www.gnu.org/licenses/>.
+
+//
+//  VCVirtualDevice.cpp
+//  VCApp
+//
+//  Copyright © 2016-2019 Kyle Neideck
+//  Copyright © 2017 Andrew Tonner
+//
+
+// Self Include
+#include "VCVirtualDevice.h"
+
+// Local Includes
+#include "VC_Types.h"
+#include "VC_Utils.h"
+
+// PublicUtility Includes
+#include "CADebugMacros.h"
+#include "CAHALAudioSystemObject.h"
+
+
+#pragma clang assume_nonnull begin
+
+#pragma mark Construction/Destruction
+
+VCVirtualDevice::VCVirtualDevice()
+:
+    VCAudioDevice(CFSTR(kVCDeviceUID))
+{
+    if(GetObjectID() == kAudioObjectUnknown)
+    {
+        LogError("VCVirtualDevice::VCVirtualDevice: Error getting VCDevice ID");
+        Throw(CAException(kAudioHardwareIllegalOperationError));
+    }
+};
+
+VCVirtualDevice::~VCVirtualDevice()
+{
+}
+
+#pragma mark Systemwide Default Device
+
+void VCVirtualDevice::SetAsOSDefault()
+{
+    DebugMsg("VCVirtualDevice::SetAsOSDefault: Setting the system's default audio device "
+             "to VCDevice");
+
+    CAHALAudioSystemObject audioSystem;
+
+    AudioDeviceID defaultDevice = audioSystem.GetDefaultAudioDevice(false, false);
+    AudioDeviceID systemDefaultDevice = audioSystem.GetDefaultAudioDevice(false, true);
+
+    if(systemDefaultDevice == defaultDevice)
+    {
+        // The default system device is the same as the default device, so change both of them.
+        audioSystem.SetDefaultAudioDevice(false, true, GetObjectID());
+    }
+
+    audioSystem.SetDefaultAudioDevice(false, false, GetObjectID());
+}
+
+void VCVirtualDevice::UnsetAsOSDefault(AudioDeviceID inOutputDeviceID)
+{
+    CAHALAudioSystemObject audioSystem;
+
+    bool vcDeviceIsDefault =
+            (audioSystem.GetDefaultAudioDevice(false, false) == GetObjectID());
+
+    if(vcDeviceIsDefault)
+    {
+        DebugMsg("VCVirtualDevice::UnsetAsOSDefault: Setting the system's default output "
+                 "device back to device %d", inOutputDeviceID);
+
+        audioSystem.SetDefaultAudioDevice(false, false, inOutputDeviceID);
+    }
+
+    bool vcDeviceIsSystemDefault =
+            (audioSystem.GetDefaultAudioDevice(false, true) == GetObjectID());
+
+    if(vcDeviceIsSystemDefault)
+    {
+        DebugMsg("VCVirtualDevice::UnsetAsOSDefault: Setting the system's default system "
+                 "output device back to device %d", inOutputDeviceID);
+
+        audioSystem.SetDefaultAudioDevice(false, true, inOutputDeviceID);
+    }
+}
+
+void VCVirtualDevice::SetHidden(bool inHidden)
+{
+    AudioObjectPropertyAddress addr = {
+        kAudioDeviceCustomPropertyVCHidden,
+        kAudioObjectPropertyScopeGlobal,
+        kAudioObjectPropertyElementMaster
+    };
+
+    CFBooleanRef value = inHidden ? kCFBooleanTrue : kCFBooleanFalse;
+    OSStatus err = AudioObjectSetPropertyData(GetObjectID(), &addr, 0, nullptr, sizeof(CFBooleanRef), &value);
+
+    if (err != kAudioHardwareNoError) {
+        LogError("VCVirtualDevice::SetHidden: Failed (%d)", err);
+    }
+}
+
+#pragma clang assume_nonnull end