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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.
+*/
+/*=============================================================================
+ AUParamInfo.cpp
+
+=============================================================================*/
+#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 &paramInfo = 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 (*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;
+}