--- /dev/null
+/*
+ File: CAAUMIDIMap.cpp
+ Abstract: CAAUMIDIMap.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 "CAAUMIDIMap.h"
+#include <pthread.h>
+
+struct AllMidiTransformers
+{
+ MIDILinearTransformer linearTrans;
+ MIDILogTransformer logTrans;
+ MIDIExpTransformer expTrans;
+ MIDISqrtTransformer sqrtTrans;
+ MIDISquareTransformer squareTrans;
+ MIDICubeRtTransformer cubeRtTrans;
+ MIDICubeTransformer cubeTrans;
+};
+
+AllMidiTransformers* gAllMidiTransformers = NULL;
+
+#if TARGET_OS_MAC
+static pthread_once_t sOnce = PTHREAD_ONCE_INIT;
+
+static void InitAllMidiTransformers()
+{
+ gAllMidiTransformers = new AllMidiTransformers();
+}
+
+static void CheckInitAllMidiTransformers()
+{
+ pthread_once(&sOnce, InitAllMidiTransformers);
+}
+#endif
+
+MIDIValueTransformer * CAAUMIDIMap::GetTransformer (UInt32 inFlags)
+{
+#if TARGET_OS_MAC
+ if (gAllMidiTransformers == NULL)
+ CheckInitAllMidiTransformers();
+#else
+ if (gAllMidiTransformers == NULL)
+ gAllMidiTransformers = new AllMidiTransformers();
+#endif
+
+ if (AudioUnitDisplayTypeIsLogarithmic(inFlags))
+ return &gAllMidiTransformers->logTrans;
+ else if (AudioUnitDisplayTypeIsExponential(inFlags))
+ return &gAllMidiTransformers->expTrans;
+ else if (AudioUnitDisplayTypeIsSquareRoot(inFlags))
+ return &gAllMidiTransformers->sqrtTrans;
+ else if (AudioUnitDisplayTypeIsSquared(inFlags))
+ return &gAllMidiTransformers->squareTrans;
+ else if (AudioUnitDisplayTypeIsCubed(inFlags))
+ return &gAllMidiTransformers->cubeTrans;
+ else if (AudioUnitDisplayTypeIsCubeRoot(inFlags))
+ return &gAllMidiTransformers->cubeRtTrans;
+ else
+ return &gAllMidiTransformers->linearTrans;
+}
+
+// The CALLER of this method must ensure that the status byte's MIDI Command matches!!!
+bool CAAUMIDIMap::MIDI_Matches (UInt8 inChannel, UInt8 inData1, UInt8 inData2, Float32 &outLinear) const
+{
+ // see if the channels match first
+ SInt8 chan = Channel();
+ // channel matches (if chan is less than zero, "Any Channel" flag is set)
+ if (chan >= 0 && chan != inChannel)
+ return false;
+
+ // match the special cases first
+ if (IsKeyEvent()) {
+ // we're using this key event as an on/off type switch
+ if (IsBipolar()) {
+ if (IsKeyPressure()){
+ if (IsBipolar_OnValue()) {
+ if (inData2 > 63) {
+ outLinear = 1;
+ return true;
+ }
+ } else {
+ if (inData2 < 64) {
+ outLinear = 0;
+ return true;
+ }
+ }
+ return false;
+ }
+ else {
+ if (IsBipolar_OnValue()) {
+ if (inData1 > 63) {
+ outLinear = 1;
+ return true;
+ }
+ } else {
+ if (inData1 < 64) {
+ outLinear = 0;
+ return true;
+ }
+ }
+ return false;
+ }
+ }
+ if (IsAnyNote()) {
+// not quite sure how to interpret this...
+ if (IsKeyPressure())
+ outLinear = inData2 / 127.0;
+ else
+ outLinear = inData1 / 127.0;
+ return true;
+ }
+ if (mData1 == inData1) {
+ if (IsKeyPressure())
+ outLinear = inData2 / 127.0;
+ else
+ outLinear = 1;
+ return true;
+ }
+ return false;
+ }
+ else if (IsControlChange()) {
+ // controller ID matches
+ if (mData1 == inData1) {
+ if (IsBipolar()) {
+ if (IsBipolar_OnValue()) {
+ if (inData2 > 63) {
+ outLinear = 1;
+ return true;
+ }
+ } else {
+ if (inData2 < 64) {
+ outLinear = 0;
+ return true;
+ }
+ }
+ return false;
+ }
+ //printf("this in midi matches %X with ", this);
+ outLinear = inData2 / 127.;
+ return true;
+ }
+ return false;
+ }
+
+ // this just matches on the patch change value itself...
+ if (IsPatchChange()) {
+ if (mData1 == inData1) {
+ outLinear = 1;
+ return true;
+ }
+ return false;
+ }
+
+ // finally, for the other two, just check the bi-polar matching conditions
+ // pitch bend and after touch
+ if (IsBipolar()) {
+ if (IsBipolar_OnValue()) {
+ if (inData1 > 63) {
+ outLinear = 1;
+ return true;
+ }
+ } else {
+ if (inData1 < 64) {
+ outLinear = 0;
+ return true;
+ }
+ }
+ return false;
+ }
+
+ if (IsPitchBend()) {
+ UInt16 value = (inData2 << 7) | inData1;
+ outLinear = value / 16383.;
+ }
+ else if (IsChannelPressure()) {
+ outLinear = inData1 / 127.0;
+ }
+
+ return true;
+}
+
+
+void CAAUMIDIMap::Print () const
+{
+ printf ("CAAUMIDIMap:%p, (%u/%u), mParamID %d, IsValid:%c, Status:0x%X, mData1 %d, Flags:0x%X\n", this, (unsigned int)mScope, (unsigned int)mElement, (int)mParameterID, (IsValid() ? 'T' : 'F'), mStatus, mData1, (int)mFlags);
+}
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