1 files changed, 224 insertions, 0 deletions
diff --git a/src/midiio/src/MidiInput.cpp b/src/midiio/src/MidiInput.cpp
new file mode 100644
index 0000000..93fce87
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+++ b/src/midiio/src/MidiInput.cpp
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+//
+// Programmer:    Craig Stuart Sapp <craig@ccrma.stanford.edu> 
+// Creation Date: 18 December 1997
+// Last Modified: Sun Jan 25 15:31:49 GMT-0800 1998
+// Last Modified: Thu Apr 27 17:56:03 PDT 2000 (added scale function)
+// Filename:      ...sig/code/control/MidiInput/MidiInput.cpp
+// Web Address:   http://sig.sapp.org/src/sig/MidiInput.cpp
+// Syntax:        C++
+//
+// Description:   A higher-level MIDI input interface than the 
+//                MidiInPort class.  Can be used to allow multiple
+//                objects to share a single MIDI input stream, or
+//                to fake a MIDI input connection.
+//
+
+#include "MidiInput.h"
+#include <stdlib.h>
+#include <iostream>
+
+
+//////////////////////////////
+//
+// MidiInput::MidiInput -- opens the specified MIDI input device and
+//    sets the size of the input buffer.
+//
+
+MidiInput::MidiInput(void) : MidiInPort() {
+   orphanBuffer = NULL;
+}
+
+
+MidiInput::MidiInput(int aPort, int autoOpen) : MidiInPort(aPort, autoOpen) {
+   orphanBuffer = NULL;
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::~MidiInput
+//
+
+MidiInput::~MidiInput() {
+   if (orphanBuffer != NULL) {
+      delete orphanBuffer;
+      orphanBuffer = NULL;
+   }
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::getBufferSize 
+//
+
+int MidiInput::getBufferSize(void) {
+   if (isOrphan()) {
+      return orphanBuffer->getSize();
+   } else {
+      return MidiInPort::getBufferSize();
+   }
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::getCount
+//
+
+int MidiInput::getCount(void) {
+   if (isOrphan()) {
+      return orphanBuffer->getCount();
+   } else {
+      return MidiInPort::getCount();
+   }
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::extract
+//
+
+MidiMessage MidiInput::extract(void) {
+   if (isOrphan()) {
+      return orphanBuffer->extract();
+   } else {
+      return MidiInPort::extract();
+   }
+}
+
+
+
+//////////////////////////////
+//
+// fscale -- converts a value in the range from 0 to 127
+//      into a number in a new range.  For example the value
+//      64 scaled to the range from 0 to 2 would be 1.
+//
+
+double MidiInput::fscale(int value, double min, double max) {
+   return value >= 127 ? max : (value/127.0*(max-min)+min);
+}
+
+
+
+//////////////////////////////
+//
+// fscale14 -- converts a value in the range from 0 to 2^15-1
+//      into a number in a new range.
+//
+
+double MidiInput::fscale14(int value, double min, double max) {
+   return value >= 16383 ? max : (value/16383.0*(max-min)+min);
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::insert
+//
+
+void MidiInput::insert(const MidiMessage& aMessage) {
+   if (isOrphan()) {
+      orphanBuffer->insert(aMessage);
+   } else {
+      MidiInPort::insert(aMessage);
+   }
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::isOrphan
+//
+
+int MidiInput::isOrphan(void) const {
+   if (orphanBuffer == NULL) {
+      return 0;
+   } else {
+      return 1;
+   }
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::makeOrphanBuffer
+//     default value: aSize = 1024
+//
+
+void MidiInput::makeOrphanBuffer(int aSize) {
+   if (!isOrphan()) {
+      if (orphanBuffer == NULL) {
+         delete orphanBuffer;
+         orphanBuffer = NULL;
+      }
+      orphanBuffer = new CircularBuffer<MidiMessage>(aSize);
+   }
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::removeOrphanBuffer
+//
+
+void MidiInput::removeOrphanBuffer(void) {
+   if (isOrphan()) {
+      delete orphanBuffer;
+      orphanBuffer = NULL;
+   }
+}
+
+
+
+//////////////////////////////
+//
+// scale -- converts a value in the range from 0 to 127
+//      into a number in a new range.  For example the value
+//      64 scaled to the range from 0 to 2 would be 1.
+//
+
+int MidiInput::scale(int value, int min, int max) {
+   return value >= 127 ? max : (int)(value/127.0*(max-min+1)+min);
+}
+
+
+
+//////////////////////////////
+//
+// scale14 -- converts a value in the range from 0 to 2^15-1
+//      into a number in a new range.  
+//
+
+int MidiInput::scale14(int value, int min, int max) {
+   return value >= 16383 ? max : (int)(value/16383.0*(max-min+1)+min);
+}
+
+
+
+//////////////////////////////
+//
+// MidiInput::setBufferSize
+//
+
+void MidiInput::setBufferSize(int aSize) {
+   if (isOrphan()) {
+      orphanBuffer->setSize(aSize);
+   } else {
+      MidiInPort::setBufferSize(aSize);
+   }
+}   
+
+
+
+// md5sum:	826d403708263eaf0089b4742179c58c  - MidiInput.cpp =css= 20030102