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diff --git a/libs/appleutility/CAAUParameter.cpp b/libs/appleutility/CAAUParameter.cpp
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-/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
-
- Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
- ("Apple") in consideration of your agreement to the following terms, and your
- use, installation, modification or redistribution of this Apple software
- constitutes acceptance of these terms. If you do not agree with these terms,
- please do not use, install, modify or redistribute this Apple software.
-
- In consideration of your agreement to abide by the following terms, and subject
- to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
- copyrights in this original Apple software (the "Apple Software"), to use,
- reproduce, modify and redistribute the Apple Software, with or without
- modifications, in source and/or binary forms; provided that if you redistribute
- the Apple Software in its entirety and without modifications, you must retain
- this notice and the following text and disclaimers in all such redistributions of
- the Apple Software. Neither the name, trademarks, service marks or logos of
- Apple Computer, Inc. may be used to endorse or promote products derived from the
- Apple Software without specific prior written permission from Apple. Except as
- expressly stated in this notice, no other rights or licenses, express or implied,
- are granted by Apple herein, including but not limited to any patent rights that
- may be infringed by your derivative works or by other works in which the Apple
- Software may be incorporated.
-
- The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
- WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
- WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
- COMBINATION WITH YOUR PRODUCTS.
-
- IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
- OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
- (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-/*=============================================================================
- CAAUParameter.cpp
-
-=============================================================================*/
-
-#include "CAAUParameter.h"
-
-CAAUParameter::CAAUParameter()
-{
- memset(this, 0, sizeof(CAAUParameter));
-}
-
-CAAUParameter::CAAUParameter(AudioUnit au, AudioUnitParameterID param, AudioUnitScope scope, AudioUnitElement element)
-{
- memset(this, 0, sizeof(CAAUParameter));
- Init (au, param, scope, element);
-}
-
-CAAUParameter::CAAUParameter (AudioUnitParameter &inParam)
-{
- memset(this, 0, sizeof(CAAUParameter));
- Init (inParam.mAudioUnit, inParam.mParameterID, inParam.mScope, inParam.mElement);
-}
-
-CAAUParameter::CAAUParameter(const CAAUParameter &a)
-{
- memset(this, 0, sizeof(CAAUParameter));
- *this = a;
-}
-
-CAAUParameter & CAAUParameter::operator = (const CAAUParameter &a)
-{
- if (mParamName) CFRelease(mParamName);
- if (mParamTag) CFRelease(mParamTag);
- if (mNamedParams) CFRelease(mNamedParams);
-
- memcpy(this, &a, sizeof(CAAUParameter));
-
- if (mParamName) CFRetain(mParamName);
- if (mParamTag) CFRetain(mParamTag);
- if (mNamedParams) CFRetain(mNamedParams);
-
- return *this;
-}
-
-CAAUParameter::~CAAUParameter()
-{
- if (mParamName) CFRelease(mParamName);
- if (mParamTag) CFRelease(mParamTag);
- if (mNamedParams) CFRelease (mNamedParams);
-}
-
-void CAAUParameter::Init (AudioUnit au, AudioUnitParameterID param, AudioUnitScope scope, AudioUnitElement element)
-{
- mAudioUnit = au;
- mParameterID = param;
- mScope = scope;
- mElement = element;
-
- UInt32 propertySize = sizeof(mParamInfo);
- OSStatus err = AudioUnitGetProperty(au, kAudioUnitProperty_ParameterInfo,
- scope, param, &mParamInfo, &propertySize);
- if (err)
- memset(&mParamInfo, 0, sizeof(mParamInfo));
- if (mParamInfo.flags & kAudioUnitParameterFlag_HasCFNameString) {
- mParamName = mParamInfo.cfNameString;
- if (!(mParamInfo.flags & kAudioUnitParameterFlag_CFNameRelease))
- CFRetain (mParamName);
- } else
- mParamName = CFStringCreateWithCString(NULL, mParamInfo.name, kCFStringEncodingUTF8);
-
- char* str = 0;
- switch (mParamInfo.unit)
- {
- case kAudioUnitParameterUnit_Boolean:
- str = "T/F";
- break;
- case kAudioUnitParameterUnit_Percent:
- case kAudioUnitParameterUnit_EqualPowerCrossfade:
- str = "%";
- break;
- case kAudioUnitParameterUnit_Seconds:
- str = "Secs";
- break;
- case kAudioUnitParameterUnit_SampleFrames:
- str = "Samps";
- break;
- case kAudioUnitParameterUnit_Phase:
- case kAudioUnitParameterUnit_Degrees:
- str = "Degr.";
- break;
- case kAudioUnitParameterUnit_Hertz:
- str = "Hz";
- break;
- case kAudioUnitParameterUnit_Cents:
- case kAudioUnitParameterUnit_AbsoluteCents:
- str = "Cents";
- break;
- case kAudioUnitParameterUnit_RelativeSemiTones:
- str = "S-T";
- break;
- case kAudioUnitParameterUnit_MIDINoteNumber:
- case kAudioUnitParameterUnit_MIDIController:
- str = "MIDI";
- //these are inclusive, so add one value here
- mNumIndexedParams = short(mParamInfo.maxValue+1 - mParamInfo.minValue);
- break;
- case kAudioUnitParameterUnit_Decibels:
- str = "dB";
- break;
- case kAudioUnitParameterUnit_MixerFaderCurve1:
- case kAudioUnitParameterUnit_LinearGain:
- str = "Gain";
- break;
- case kAudioUnitParameterUnit_Pan:
- str = "L/R";
- break;
- case kAudioUnitParameterUnit_Meters:
- str = "Mtrs";
- break;
- case kAudioUnitParameterUnit_Octaves:
- str = "8ve";
- break;
- case kAudioUnitParameterUnit_BPM:
- str = "BPM";
- break;
- case kAudioUnitParameterUnit_Beats:
- str = "Beats";
- break;
- case kAudioUnitParameterUnit_Milliseconds:
- str = "msecs";
- break;
- case kAudioUnitParameterUnit_Ratio:
- str = "ratio";
- break;
- case kAudioUnitParameterUnit_Indexed:
- {
- propertySize = sizeof(mNamedParams);
- err = AudioUnitGetProperty (au,
- kAudioUnitProperty_ParameterValueStrings,
- scope,
- param,
- &mNamedParams,
- &propertySize);
- if (!err && mNamedParams) {
- mNumIndexedParams = CFArrayGetCount(mNamedParams);
- } else {
- //these are inclusive, so add one value here
- mNumIndexedParams = short(mParamInfo.maxValue+1 - mParamInfo.minValue);
- }
- str = NULL;
- }
- break;
- case kAudioUnitParameterUnit_CustomUnit:
- {
- CFStringRef unitName = mParamInfo.unitName;
- static char paramStr[256];
- CFStringGetCString (unitName, paramStr, 256, kCFStringEncodingUTF8);
- if (mParamInfo.flags & kAudioUnitParameterFlag_CFNameRelease)
- CFRelease (unitName);
- str = paramStr;
- break;
- }
- case kAudioUnitParameterUnit_Generic:
- case kAudioUnitParameterUnit_Rate:
- default:
- str = NULL;
- break;
- }
-
- if (str)
- mParamTag = CFStringCreateWithCString(NULL, str, kCFStringEncodingUTF8);
- else
- mParamTag = NULL;
-}
-
-
-Float32 CAAUParameter::GetValue() const
-{
- Float32 value = 0.;
- //OSStatus err =
- AudioUnitGetParameter(mAudioUnit, mParameterID, mScope, mElement, &value);
- return value;
-}
-
-CFStringRef CAAUParameter::GetStringFromValueCopy(const Float32 *value) const
-{
- if (HasNamedParams())
- {
- Float32 val = (value == NULL ? GetValue() : *value);
- int index = int(mParamInfo.minValue) + int(val);
- CFStringRef str = GetParamName (index);
- if (str) {
- CFRetain (str);
- return str;
- }
- }
- else if (ValuesHaveStrings())
- {
- AudioUnitParameterStringFromValue stringValue;
- stringValue.inParamID = mParameterID;
- stringValue.inValue = value;
- stringValue.outString = NULL;
- UInt32 propertySize = sizeof(stringValue);
-
- OSStatus err = AudioUnitGetProperty (mAudioUnit,
- kAudioUnitProperty_ParameterStringFromValue,
- mScope,
- mParameterID,
- &stringValue,
- &propertySize);
-
- if (err == noErr && stringValue.outString != NULL)
- return stringValue.outString;
- }
-
- Float32 val = (value == NULL ? GetValue() : *value);
- char valstr[32];
- AUParameterFormatValue (val, this, valstr, 4);
- return CFStringCreateWithCString(NULL, valstr, kCFStringEncodingUTF8);
-}
-
-Float32 CAAUParameter::GetValueFromString(CFStringRef str) const
-{
- if (ValuesHaveStrings())
- {
- AudioUnitParameterValueFromString valueString;
- valueString.inParamID = mParameterID;
- valueString.inString = str;
- UInt32 propertySize = sizeof(valueString);
-
- OSStatus err = AudioUnitGetProperty (mAudioUnit,
- kAudioUnitProperty_ParameterValueFromString,
- mScope,
- mParameterID,
- &valueString,
- &propertySize);
-
- if (err == noErr) {
- return valueString.outValue;
- }
- }
-
- Float32 paramValue = mParamInfo.defaultValue;
- char valstr[32];
- CFStringGetCString(str, valstr, sizeof(valstr), kCFStringEncodingUTF8);
- sscanf(valstr, "%f", &paramValue);
- return paramValue;
-}
-
-void CAAUParameter::SetValue( AUParameterListenerRef inListener,
- void * inObject,
- Float32 inValue) const
-{
- // clip inValue as: maxValue >= inValue >= minValue before setting
- Float32 valueToSet = inValue;
- if (valueToSet > mParamInfo.maxValue)
- valueToSet = mParamInfo.maxValue;
- if (valueToSet < mParamInfo.minValue)
- valueToSet = mParamInfo.minValue;
-
- AUParameterSet(inListener, inObject, this, valueToSet, 0);
-}
-
-#if DEBUG
-void CAAUParameter::Print() const
-{
- UInt32 clump = 0;
- GetClumpID (clump);
-
- UInt32 len = CFStringGetLength(mParamName);
- char* chars = (char*)malloc (len * 2); // give us plenty of room for unichar chars
- if (!CFStringGetCString (mParamName, chars, len * 2, kCFStringEncodingUTF8))
- chars[0] = 0;
-
- printf ("ID: %ld, Clump: %ld, Name: %s\n", mParameterID, clump, chars);
- free (chars);
-}
-#endif
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