git-svn-id: svn://localhost/ardour2/branches/3.0@3074 d708f5d6-7413-0410-9779-e7cbd77b26cf
135 lines
5.1 KiB
C++
135 lines
5.1 KiB
C++
/* Copyright: © Copyright 2005 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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AUParamInfo.cpp
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=============================================================================*/
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#include "AUParamInfo.h"
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#include "CAXException.h"
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AUParamInfo::AUParamInfo (AudioUnit inAU,
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bool inIncludeExpert,
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bool inIncludeReadOnly,
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AudioUnitScope inScope,
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AudioUnitElement inElement)
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: mAU (inAU),
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mNumParams (0),
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mParamListID(NULL),
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mScope (inScope),
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mElement (inElement)
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{
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UInt32 size;
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OSStatus result = AudioUnitGetPropertyInfo(mAU, kAudioUnitProperty_ParameterList, inScope, mElement, &size, NULL);
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if (size == 0 || result) return;
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int nparams = size / sizeof(AudioUnitPropertyID);
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mParamListID = new AudioUnitParameterID[nparams];
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memset (mParamListID, 0xFF, size);
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AudioUnitParameterID *paramList = new AudioUnitParameterID[nparams];
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result = AudioUnitGetProperty(mAU, kAudioUnitProperty_ParameterList, mScope, mElement, paramList, &size);
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if (result) {
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delete [] mParamListID;
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delete [] paramList;
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mParamListID = NULL;
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return;
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}
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ParameterMap params;
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for (int i = 0; i < nparams; ++i)
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{
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CAAUParameter auvp (mAU, paramList[i], mScope, mElement); // took out only using global scope in CAAUParameter creation
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const AudioUnitParameterInfo ¶mInfo = auvp.ParamInfo();
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// don't include if parameter can't be read or written
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if (!(paramInfo.flags & kAudioUnitParameterFlag_IsWritable)
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&& !(paramInfo.flags & kAudioUnitParameterFlag_IsReadable))
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continue;
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// only include if expert params wanted
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if (!inIncludeExpert && auvp.IsExpert())
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continue;
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// only include if read only params are wanted
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if (!(paramInfo.flags & kAudioUnitParameterFlag_IsWritable)
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&& (paramInfo.flags & kAudioUnitParameterFlag_IsReadable))
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{
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if (!inIncludeReadOnly)
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continue;
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}
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mParamListID[mNumParams] = paramList[i];
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mNumParams++;
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// ok - if we're here, then we have a parameter we are going to display.
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UInt32 clump = 0;
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auvp.GetClumpID (clump);
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mParams[clump].push_back (auvp);
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}
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delete [] paramList;
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}
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AUParamInfo::~AUParamInfo()
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{
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delete [] mParamListID;
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}
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UInt32 AUParamInfo::NumParamsForClump (UInt32 inClump) const
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{
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ParameterMap::const_iterator it = mParams.find(inClump);
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if (it != mParams.end())
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return (*it).second.size();
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return 0;
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}
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const CAAUParameter* AUParamInfo::GetParamInfo (AudioUnitParameterID inParamID) const
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{
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for (ParameterMap::const_iterator it = mParams.begin(); it != mParams.end(); ++it) {
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const ParameterList &list = (*it).second;
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for (ParameterList::const_iterator iter = list.begin(); iter != list.end(); ++iter) {
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if (inParamID == (*iter).mParameterID) {
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return &(*iter);
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}
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}
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}
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return NULL;
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}
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