140 lines
4.9 KiB
C++
140 lines
4.9 KiB
C++
/*
|
|
File: AUParamInfo.cpp
|
|
Abstract: AUParamInfo.h
|
|
Version: 1.1
|
|
|
|
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
|
|
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'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 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.
|
|
|
|
Copyright (C) 2014 Apple Inc. All Rights Reserved.
|
|
|
|
*/
|
|
#include "AUParamInfo.h"
|
|
#include "CAXException.h"
|
|
|
|
AUParamInfo::AUParamInfo (AudioUnit inAU,
|
|
bool inIncludeExpert,
|
|
bool inIncludeReadOnly,
|
|
AudioUnitScope inScope,
|
|
AudioUnitElement inElement)
|
|
: mAU (inAU),
|
|
mNumParams (0),
|
|
mParamListID(NULL),
|
|
mScope (inScope),
|
|
mElement (inElement)
|
|
{
|
|
UInt32 size;
|
|
OSStatus result = AudioUnitGetPropertyInfo(mAU, kAudioUnitProperty_ParameterList, inScope, mElement, &size, NULL);
|
|
if (size == 0 || result) return;
|
|
|
|
int nparams = size / sizeof(AudioUnitPropertyID);
|
|
mParamListID = new AudioUnitParameterID[nparams];
|
|
|
|
memset (mParamListID, 0xFF, size);
|
|
|
|
AudioUnitParameterID *paramList = new AudioUnitParameterID[nparams];
|
|
|
|
result = AudioUnitGetProperty(mAU, kAudioUnitProperty_ParameterList, mScope, mElement, paramList, &size);
|
|
if (result) {
|
|
delete [] mParamListID;
|
|
delete [] paramList;
|
|
mParamListID = NULL;
|
|
return;
|
|
}
|
|
|
|
ParameterMap params;
|
|
for (int i = 0; i < nparams; ++i)
|
|
{
|
|
CAAUParameter auvp (mAU, paramList[i], mScope, mElement); // took out only using global scope in CAAUParameter creation
|
|
const AudioUnitParameterInfo ¶mInfo = auvp.ParamInfo();
|
|
|
|
// don't include if parameter can't be read or written
|
|
if (!(paramInfo.flags & kAudioUnitParameterFlag_IsWritable)
|
|
&& !(paramInfo.flags & kAudioUnitParameterFlag_IsReadable))
|
|
continue;
|
|
|
|
// only include if expert params wanted
|
|
if (!inIncludeExpert && auvp.IsExpert())
|
|
continue;
|
|
|
|
// only include if read only params are wanted
|
|
if (!(paramInfo.flags & kAudioUnitParameterFlag_IsWritable)
|
|
&& (paramInfo.flags & kAudioUnitParameterFlag_IsReadable))
|
|
{
|
|
if (!inIncludeReadOnly)
|
|
continue;
|
|
}
|
|
|
|
mParamListID[mNumParams] = paramList[i];
|
|
mNumParams++;
|
|
|
|
// ok - if we're here, then we have a parameter we are going to display.
|
|
UInt32 clump = 0;
|
|
auvp.GetClumpID (clump);
|
|
mParams[clump].push_back (auvp);
|
|
}
|
|
|
|
delete [] paramList;
|
|
}
|
|
|
|
AUParamInfo::~AUParamInfo()
|
|
{
|
|
delete [] mParamListID;
|
|
}
|
|
|
|
UInt32 AUParamInfo::NumParamsForClump (UInt32 inClump) const
|
|
{
|
|
ParameterMap::const_iterator it = mParams.find(inClump);
|
|
if (it != mParams.end())
|
|
return static_cast<UInt32>((*it).second.size());
|
|
return 0;
|
|
}
|
|
|
|
const CAAUParameter* AUParamInfo::GetParamInfo (AudioUnitParameterID inParamID) const
|
|
{
|
|
for (ParameterMap::const_iterator it = mParams.begin(); it != mParams.end(); ++it) {
|
|
const ParameterList &list = (*it).second;
|
|
for (ParameterList::const_iterator iter = list.begin(); iter != list.end(); ++iter) {
|
|
if (inParamID == (*iter).mParameterID) {
|
|
return &(*iter);
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|