317 lines
9.8 KiB
C++
317 lines
9.8 KiB
C++
|
/* Copyright: <09> 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 Apple<EFBFBD>s
|
|||
|
|
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", ¶mValue);
|
|||
|
|
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
|