Added Audio Unit support

CMakeLists.txt

@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.17)
 option(JAMBA_ENABLE_VST2 "Use VST2" ON)
 
 # build Audio Unit?
-option(JAMBA_ENABLE_AUDIO_UNIT "Enable Audio Unit" OFF)
+option(JAMBA_ENABLE_AUDIO_UNIT "Enable Audio Unit" ON)
 
 # Download VST SDK if not installed?
 option(JAMBA_DOWNLOAD_VSTSDK "Download VST SDK if not installed" ON)

README.md

@@ -9,6 +9,7 @@ This project is connected to the [VST Development Notes](https://www.pongasoft.c
 ------------------------------------
 * Use of [jamba](https://github.com/pongasoft/jamba) framework and VST SDK 3.7.0
 * Use of `ParamImageView` for LED status lights
+* Added support for Audio Unit
 * Added support for Apple Chipset / universal build on macOS
 
 2018-06-19 - Status for tag `v1.1.2`

audio-unit/Info.plist

@@ -0,0 +1,109 @@
+//-----------------------------------------------------------------------------
+// LICENSE
+// (c) 2018, Steinberg Media Technologies GmbH, All Rights Reserved
+//-----------------------------------------------------------------------------
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Steinberg Media Technologies nor the names of its
+//     contributors may be used to endorse or promote products derived from this
+//     software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+// IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+// OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE  OF THIS SOFTWARE, EVEN IF ADVISED
+// OF THE POSSIBILITY OF SUCH DAMAGE.
+//-----------------------------------------------------------------------------
+
+#include "audiounitconfig.h"
+
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>kAudioUnitBundleIdentifier</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>CSResourcesFileMapped</key>
+	<string>yes</string>
+
+	/*
+		The "AudioUnit SupportedNumChannels" key is only necessary if you build an effect not an instrument.
+		You should describe all supported channel configurations.
+		This example says that it supports Stereo/Stereo or Mono/Mono.
+	*/
+
+	<key>AudioUnit SupportedNumChannels</key>
+	<array>
+		<dict>
+			<key>Outputs</key>
+			<string>2</string>
+			<key>Inputs</key>
+			<string>2</string>
+		</dict>
+		<dict>
+			<key>Outputs</key>
+			<string>0</string>
+			<key>Inputs</key>
+			<string>1</string>
+		</dict>
+		<dict>
+			<key>Outputs</key>
+			<string>1</string>
+			<key>Inputs</key>
+			<string>1</string>
+		</dict>
+	</array>
+
+	<key>AudioUnit Version</key>
+	<string>kAudioUnitVersion</string>
+
+	/*
+		Support for the new AUPlugIn model in Mac OS X 10.7
+	*/
+	<key>AudioComponents</key>
+	<array>
+		<dict>
+			<key>description</key>
+			<string>kAUPluginDescription</string>
+			<key>factoryFunction</key>
+			<string>AUWrapperFactory</string>
+			<key>manufacturer</key>
+			<string>kAUPluginManufacturer</string>
+			<key>name</key>
+			<string>kAUPluginName</string>
+			<key>subtype</key>
+			<string>kAUPluginSubType</string>
+			<key>type</key>
+			<string>kAUPluginType</string>
+			<key>version</key>
+			<integer>kAudioUnitVersion</integer>
+		</dict>
+	</array>
+
+</dict>
+</plist>

audio-unit/audiounitconfig.h

@@ -0,0 +1,37 @@
+#include "version.h"
+
+// Check https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/AudioUnit.html for various types
+
+/* Bundle Identifier */
+#define kAudioUnitBundleIdentifier	org.pongasoft.vst.ABSwitch.audiounit
+
+/* Version Number (computed in version.h from version in CMakeLists.txt) */
+#define kAudioUnitVersion			AU_VERSION_INT
+
+/* Company Name + Effect Name */
+#define kAUPluginName 				pongasoft: A/B Switch
+
+/* A product name for the audio unit, such as TremoloUnit */
+#define kAUPluginDescription 		A/B Switch
+
+/*
+  The specific variant of the Audio Unit. The four possible types and their values are:
+  Effect (aufx), Generator (augn), Instrument (aumu), and Music Effect (aufm).
+ */
+#define kAUPluginType 				aufx
+
+/* A subtype code for the audio unit, such as tmlo. This value must be exactly 4 alphanumeric characters. */
+#define kAUPluginSubType 			util
+
+/* A manufacturer code for the audio unit, such as Aaud. This value must be exactly 4 alphanumeric characters.
+ * Manufacturer OSType should have at least one non-lower case character */
+#define kAUPluginManufacturer 		ABSw
+
+// Definitions for the resource file
+#define kAudioUnitName              "pongasoft: A/B Switch" // same as kAUPluginName
+#define kAudioUnitDescription       "A/B Switch" // same as kAUPluginDescription
+#define kAudioUnitType              'aufx' // same as kAUPluginType
+#define kAudioUnitComponentSubType 'util' // same as kAUPluginSubType
+#define kAudioUnitComponentManuf    'Psft' // same as kAUPluginManufacturer
+
+#define kAudioUnitCarbonView		1		// if 0 no Carbon view support will be added