265 lines
10 KiB
C++
265 lines
10 KiB
C++
/* Copyright: © Copyright 2003 Apple Computer, Inc. All rights reserved.
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
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("Apple") in consideration of your agreement to the following terms, and your
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use, installation, modification or redistribution of this Apple software
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constitutes acceptance of these terms. If you do not agree with these terms,
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please do not use, install, modify or redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and subject
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to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
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copyrights in this original Apple software (the "Apple Software"), to use,
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reproduce, modify and redistribute the Apple Software, with or without
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modifications, in source and/or binary forms; provided that if you redistribute
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the Apple Software in its entirety and without modifications, you must retain
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this notice and the following text and disclaimers in all such redistributions of
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the Apple Software. Neither the name, trademarks, service marks or logos of
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Apple Computer, Inc. may be used to endorse or promote products derived from the
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Apple Software without specific prior written permission from Apple. Except as
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expressly stated in this notice, no other rights or licenses, express or implied,
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are granted by Apple herein, including but not limited to any patent rights that
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may be infringed by your derivative works or by other works in which the Apple
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Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
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WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
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WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
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COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
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OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
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(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*=============================================================================
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CAAudioHardwareSystem.cpp
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=============================================================================*/
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//=============================================================================
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// Includes
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//=============================================================================
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// Self Include
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#include "CAAudioHardwareSystem.h"
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// PublicUtility Includes
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#include "CAAutoDisposer.h"
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#include "CADebugMacros.h"
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#include "CAException.h"
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//=============================================================================
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// CAAudioHardwareSystem
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//=============================================================================
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UInt32 CAAudioHardwareSystem::GetNumberDevices()
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{
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UInt32 theAnswer = GetPropertyDataSize(kAudioHardwarePropertyDevices);
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theAnswer /= sizeof(AudioDeviceID);
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return theAnswer;
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}
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AudioDeviceID CAAudioHardwareSystem::GetDeviceAtIndex(UInt32 inIndex)
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{
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AudioDeviceID theAnswer = 0;
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UInt32 theNumberDevices = GetNumberDevices();
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if((theNumberDevices > 0) && (inIndex < theNumberDevices))
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{
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CAAutoArrayDelete<AudioDeviceID> theDeviceList(theNumberDevices);
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UInt32 theSize = theNumberDevices * sizeof(AudioDeviceID);
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GetPropertyData(kAudioHardwarePropertyDevices, theSize, theDeviceList);
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theAnswer = theDeviceList[inIndex];
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}
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return theAnswer;
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}
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UInt32 CAAudioHardwareSystem::GetIndexForDevice(const AudioDeviceID inDevice)
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{
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UInt32 theAnswer = 0xFFFFFFFF;
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UInt32 theNumberDevices = GetNumberDevices();
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if(theNumberDevices > 0)
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{
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CAAutoArrayDelete<AudioDeviceID> theDeviceList(theNumberDevices);
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UInt32 theSize = theNumberDevices * sizeof(AudioDeviceID);
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GetPropertyData(kAudioHardwarePropertyDevices, theSize, theDeviceList);
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for(UInt32 theIndex = 0; theIndex < theNumberDevices; ++theIndex)
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{
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if(inDevice == theDeviceList[theIndex])
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{
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theAnswer = theIndex;
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break;
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}
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}
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}
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return theAnswer;
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}
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AudioDeviceID CAAudioHardwareSystem::GetDeviceForUID(CFStringRef inUID)
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{
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AudioDeviceID theAnswer = 0;
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AudioValueTranslation theValue = { &inUID, sizeof(CFStringRef), &theAnswer, sizeof(AudioDeviceID) };
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UInt32 theSize = sizeof(AudioValueTranslation);
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GetPropertyData(kAudioHardwarePropertyDeviceForUID, theSize, &theValue);
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return theAnswer;
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}
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AudioDeviceID CAAudioHardwareSystem::GetDefaultDevice(bool inIsInput, bool inIsSystem)
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{
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AudioDeviceID theAnswer = 0;
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AudioHardwarePropertyID thePropertyID = 0;
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if(inIsInput)
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{
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thePropertyID = kAudioHardwarePropertyDefaultInputDevice;
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}
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else if(inIsSystem)
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{
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thePropertyID = kAudioHardwarePropertyDefaultSystemOutputDevice;
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}
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else
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{
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thePropertyID = kAudioHardwarePropertyDefaultOutputDevice;
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}
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UInt32 theSize = sizeof(AudioDeviceID);
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GetPropertyData(thePropertyID, theSize, &theAnswer);
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return theAnswer;
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}
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void CAAudioHardwareSystem::SetDefaultDevice(bool inIsInput, bool inIsSystem, AudioDeviceID inDevice)
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{
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AudioHardwarePropertyID thePropertyID = 0;
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if(inIsInput)
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{
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thePropertyID = kAudioHardwarePropertyDefaultInputDevice;
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}
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else if(inIsSystem)
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{
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thePropertyID = kAudioHardwarePropertyDefaultSystemOutputDevice;
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}
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else
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{
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thePropertyID = kAudioHardwarePropertyDefaultOutputDevice;
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}
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UInt32 theSize = sizeof(AudioDeviceID);
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SetPropertyData(thePropertyID, theSize, &inDevice);
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}
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bool CAAudioHardwareSystem::HasBootChimeVolumeControl()
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{
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return HasProperty(kAudioHardwarePropertyBootChimeVolumeDecibels);
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}
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Float32 CAAudioHardwareSystem::GetBootChimeVolumeControlValueAsScalar()
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{
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Float32 theAnswer = 0;
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UInt32 theSize = sizeof(Float32);
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GetPropertyData(kAudioHardwarePropertyBootChimeVolumeScalar, theSize, &theAnswer);
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return theAnswer;
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}
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Float32 CAAudioHardwareSystem::GetBootChimeVolumeControlValueAsDB()
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{
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Float32 theAnswer = 0;
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UInt32 theSize = sizeof(Float32);
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GetPropertyData(kAudioHardwarePropertyBootChimeVolumeDecibels, theSize, &theAnswer);
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return theAnswer;
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}
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void CAAudioHardwareSystem::GetBootChimeVolumeControlDBRange(Float32& outMinimum, Float32& outMaximum)
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{
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AudioValueRange theRange = { 0, 0 };
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UInt32 theSize = sizeof(AudioValueRange);
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GetPropertyData(kAudioHardwarePropertyBootChimeVolumeRangeDecibels, theSize, &theRange);
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outMinimum = theRange.mMinimum;
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outMaximum = theRange.mMaximum;
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}
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void CAAudioHardwareSystem::SetBootChimeVolumeControlValueAsScalar(Float32 inScalarValue)
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{
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UInt32 theSize = sizeof(Float32);
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SetPropertyData(kAudioHardwarePropertyBootChimeVolumeScalar, theSize, &inScalarValue);
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}
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void CAAudioHardwareSystem::SetBootChimeVolumeControlValueAsDB(Float32 inDBValue)
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{
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UInt32 theSize = sizeof(Float32);
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SetPropertyData(kAudioHardwarePropertyBootChimeVolumeDecibels, theSize, &inDBValue);
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}
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Float32 CAAudioHardwareSystem::ConvertBootChimeVolumeControlScalarValueToDB(Float32 inScalarValue)
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{
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UInt32 theSize = sizeof(Float32);
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GetPropertyData(kAudioHardwarePropertyBootChimeVolumeScalarToDecibels, theSize, &inScalarValue);
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return inScalarValue;
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}
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Float32 CAAudioHardwareSystem::ConvertBootChimeVolumeControlDBValueToScalar(Float32 inDBValue)
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{
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UInt32 theSize = sizeof(Float32);
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GetPropertyData(kAudioHardwarePropertyBootChimeVolumeDecibelsToScalar, theSize, &inDBValue);
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return inDBValue;
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}
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bool CAAudioHardwareSystem::AllowsIdleSleepDuringIO()
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{
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UInt32 theValue = 0;
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UInt32 theSize = sizeof(UInt32);
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GetPropertyData(kAudioHardwarePropertySleepingIsAllowed, theSize, &theValue);
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return theValue != 0;
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}
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void CAAudioHardwareSystem::SetAllowsIdleSleepDuringIO(bool inAllowIdleSleep)
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{
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UInt32 theValue = inAllowIdleSleep ? 1 : 0;
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SetPropertyData(kAudioHardwarePropertySleepingIsAllowed, sizeof(UInt32), &theValue);
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}
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bool CAAudioHardwareSystem::HasProperty(AudioHardwarePropertyID inPropertyID)
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{
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OSStatus theError = AudioHardwareGetPropertyInfo(inPropertyID, NULL, NULL);
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return theError == 0;
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}
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bool CAAudioHardwareSystem::PropertyIsSettable(AudioHardwarePropertyID inPropertyID)
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{
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Boolean isWritable = false;
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OSStatus theError = AudioHardwareGetPropertyInfo(inPropertyID, NULL, &isWritable);
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ThrowIfError(theError, CAException(theError), "CAAudioHardwareSystem::PropertyIsSettable: got an error getting info about a property");
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return isWritable != 0;
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}
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UInt32 CAAudioHardwareSystem::GetPropertyDataSize(AudioHardwarePropertyID inPropertyID)
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{
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UInt32 theSize = 0;
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OSStatus theError = AudioHardwareGetPropertyInfo(inPropertyID, &theSize, NULL);
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ThrowIfError(theError, CAException(theError), "CAAudioHardwareSystem::GetPropertyDataSize: got an error getting info about a property");
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return theSize;
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}
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void CAAudioHardwareSystem::GetPropertyData(AudioHardwarePropertyID inPropertyID, UInt32& ioDataSize, void* outData)
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{
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OSStatus theError = AudioHardwareGetProperty(inPropertyID, &ioDataSize, outData);
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ThrowIfError(theError, CAException(theError), "CAAudioHardwareSystem::GetPropertyData: got an error getting the value of a property");
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}
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void CAAudioHardwareSystem::SetPropertyData(AudioHardwarePropertyID inPropertyID, UInt32 inDataSize, const void* inData)
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{
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OSStatus theError = AudioHardwareSetProperty(inPropertyID, inDataSize, const_cast<void*>(inData));
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ThrowIfError(theError, CAException(theError), "CAAudioHardwareSystem::SetPropertyData: got an error setting the value of a property");
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}
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void CAAudioHardwareSystem::AddPropertyListener(AudioHardwarePropertyID inPropertyID, AudioHardwarePropertyListenerProc inListenerProc, void* inClientData)
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{
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OSStatus theError = AudioHardwareAddPropertyListener(inPropertyID, inListenerProc, inClientData);
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ThrowIfError(theError, CAException(theError), "CAAudioHardwareSystem::AddPropertyListener: got an error adding a property listener");
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}
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void CAAudioHardwareSystem::RemovePropertyListener(AudioHardwarePropertyID inPropertyID, AudioHardwarePropertyListenerProc inListenerProc)
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{
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OSStatus theError = AudioHardwareRemovePropertyListener(inPropertyID, inListenerProc);
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ThrowIfError(theError, CAException(theError), "CAAudioHardwareSystem::RemovePropertyListener: got an error removing a property listener");
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}
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