Updated to latest AUv3Support API

LPF.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 52;
+	objectVersion = 54;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -530,9 +530,10 @@
 		C437FE302223672C008D6C09 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
+				BuildIndependentTargetsInParallel = YES;
 				DefaultBuildSystemTypeForWorkspace = Latest;
 				LastSwiftUpdateCheck = 1240;
-				LastUpgradeCheck = 1410;
+				LastUpgradeCheck = 1600;
 				ORGANIZATIONNAME = Apple;
 				TargetAttributes = {
 					BD1D257525D5AAB000523748 = {
@@ -781,6 +782,7 @@
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				PRODUCT_BUNDLE_IDENTIFIER = com.braysoftware.Snapshots;
@@ -824,6 +826,7 @@
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				PRODUCT_BUNDLE_IDENTIFIER = com.braysoftware.Snapshots;
@@ -842,7 +845,7 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = BDE2CE1824A3E8DB004AC8FA /* Staging.xcconfig */;
 			buildSettings = {
-				CLANG_CXX_LANGUAGE_STANDARD = "c++17";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++23";
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
@@ -865,6 +868,7 @@
 				CLANG_WARN__EXIT_TIME_DESTRUCTORS = NO;
 				DEAD_CODE_STRIPPING = YES;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
 				GCC_C_LANGUAGE_STANDARD = c11;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
@@ -885,7 +889,6 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = BDE2CE1824A3E8DB004AC8FA /* Staging.xcconfig */;
 			buildSettings = {
-				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ANALYZER_NONNULL = YES;
@@ -937,6 +940,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MARKETING_VERSION = 4.0.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
@@ -1008,6 +1012,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MARKETING_VERSION = 4.0.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
@@ -1028,7 +1033,6 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = BDE2CE1824A3E8DB004AC8FA /* Staging.xcconfig */;
 			buildSettings = {
-				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ANALYZER_NONNULL = YES;
@@ -1084,6 +1088,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MARKETING_VERSION = 4.0.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
@@ -1156,6 +1161,7 @@
 					"@executable_path/../Frameworks",
 					"@executable_path/../../../../Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MARKETING_VERSION = 4.0.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
@@ -1174,7 +1180,7 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = BDE2CE1724A3E887004AC8FA /* Dev.xcconfig */;
 			buildSettings = {
-				CLANG_CXX_LANGUAGE_STANDARD = "c++17";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++23";
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
@@ -1198,6 +1204,7 @@
 				DEAD_CODE_STRIPPING = YES;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
 				GCC_C_LANGUAGE_STANDARD = c11;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
@@ -1219,7 +1226,6 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = BDE2CE1724A3E887004AC8FA /* Dev.xcconfig */;
 			buildSettings = {
-				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ANALYZER_NONNULL = YES;
@@ -1277,6 +1283,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MARKETING_VERSION = 4.0.1;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
@@ -1354,6 +1361,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MARKETING_VERSION = 4.0.1;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
@@ -1374,7 +1382,6 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = BDE2CE1724A3E887004AC8FA /* Dev.xcconfig */;
 			buildSettings = {
-				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ANALYZER_NONNULL = YES;
@@ -1436,6 +1443,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MARKETING_VERSION = 4.0.1;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
@@ -1515,6 +1523,7 @@
 					"@executable_path/../Frameworks",
 					"@executable_path/../../../../Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MARKETING_VERSION = 4.0.1;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;

LPF.xcodeproj/xcshareddata/xcschemes/Snapshots.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1410"
+   LastUpgradeVersion = "1600"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

LPF.xcodeproj/xcshareddata/xcschemes/iOS App.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1410"
+   LastUpgradeVersion = "1600"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

LPF.xcodeproj/xcshareddata/xcschemes/iOS Extension.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1410"
+   LastUpgradeVersion = "1600"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

LPF.xcodeproj/xcshareddata/xcschemes/macOS App.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1410"
+   LastUpgradeVersion = "1600"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

LPF.xcodeproj/xcshareddata/xcschemes/macOS Extension.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1410"
+   LastUpgradeVersion = "1600"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"

Packages/Package.swift

@@ -75,5 +75,5 @@ let package = Package(
       dependencies: ["Parameters"]
     ),
   ],
-  cxxLanguageStandard: .cxx17
+  cxxLanguageStandard: .cxx20
 )

Packages/Sources/Kernel/C++/Kernel.hpp

@@ -11,7 +11,6 @@
 #import "AcceleratedBiquadFilter.hpp"
 #import "DSPHeaders/BusBuffers.hpp"
 #import "DSPHeaders/EventProcessor.hpp"
-#import "DSPHeaders/RampingParameter.hpp"
 
 /**
  The audio processing kernel that performs low-pass filtering of an audio signal.
@@ -49,7 +48,7 @@ struct Kernel : public DSPHeaders::EventProcessor<Kernel> {
    @param value the new value for the parameter
    @param duration the number of frames to ramp to the new value
    */
-  void setParameterValue(AUParameterAddress address, AUValue value, AUAudioFrameCount duration) noexcept;
+  bool setParameterValue(AUParameterAddress address, AUValue value, AUAudioFrameCount duration) noexcept;
 
   /**
    Obtain from the kernel the current value of an AU parameter.
@@ -82,8 +81,8 @@ struct Kernel : public DSPHeaders::EventProcessor<Kernel> {
     }
   }
 
-  void doParameterEvent(const AUParameterEvent& event) noexcept {
-    setParameterValue(event.parameterAddress, event.value, event.rampDurationSampleFrames);
+  bool doParameterEvent(const AUParameterEvent& event, AUAudioFrameCount rampDuration) noexcept {
+    return setParameterValue(event.parameterAddress, event.value, rampDuration);
   }
 
   void doRendering(NSInteger outputBusNumber, DSPHeaders::BusBuffers ins, DSPHeaders::BusBuffers outs,
@@ -100,8 +99,8 @@ struct Kernel : public DSPHeaders::EventProcessor<Kernel> {
   AUValue sampleRate_;
   AUValue nyquistFrequency_;
   AUValue nyquistPeriod_;
-  DSPHeaders::Parameters::RampingParameter<AUValue> cutoff_;
-  DSPHeaders::Parameters::RampingParameter<AUValue> resonance_;
+  DSPHeaders::Parameters::Float cutoff_;
+  DSPHeaders::Parameters::Float resonance_;
   std::string name_;
   os_log_t log_;
 };

Packages/Sources/Kernel/Kernel.mm

@@ -4,12 +4,13 @@
 
 @import ParameterAddress;
 
-void Kernel::setParameterValue(AUParameterAddress address, AUValue value, AUAudioFrameCount duration) noexcept {
+bool Kernel::setParameterValue(AUParameterAddress address, AUValue value, AUAudioFrameCount duration) noexcept {
   os_log_with_type(log_, OS_LOG_TYPE_DEBUG, "setRampedParameterValue - %llul %f %d", address, value, duration);
   switch (address) {
-    case ParameterAddressCutoff: cutoff_.set(value, duration); break;
-    case ParameterAddressResonance: resonance_.set(value, duration); break;
+    case ParameterAddressCutoff: cutoff_.set(value, duration); return true;
+    case ParameterAddressResonance: resonance_.set(value, duration); return true;
   }
+  return false;
 }
 
 AUValue Kernel::getParameterValue(AUParameterAddress address) const noexcept {

Packages/Sources/Kernel/KernelBridge.mm

@@ -24,18 +24,11 @@ - (void)setRenderingFormat:(NSInteger)busCount format:(AVAudioFormat*)inputForma
 
 - (void)deallocateRenderResources { kernel_->deallocateRenderResources(); }
 
-- (AUInternalRenderBlock)internalRenderBlock:(nullable AUHostTransportStateBlock)tsb {
+- (AUInternalRenderBlock)internalRenderBlock {
   __block auto kernel = kernel_;
-  __block auto transportStateBlock = tsb;
   return ^AUAudioUnitStatus(AudioUnitRenderActionFlags* flags, const AudioTimeStamp* timestamp,
                             AUAudioFrameCount frameCount, NSInteger outputBusNumber, AudioBufferList* output,
                             const AURenderEvent* realtimeEventListHead, AURenderPullInputBlock pullInputBlock) {
-    if (transportStateBlock) {
-      AUHostTransportStateFlags flags;
-      transportStateBlock(&flags, NULL, NULL, NULL);
-      bool rendering = flags & AUHostTransportStateMoving;
-      kernel->setRendering(rendering);
-    }
     return kernel->processAndRender(timestamp, frameCount, outputBusNumber, output, realtimeEventListHead, pullInputBlock);
   };
 }
@@ -48,10 +41,16 @@ - (void)magnitudes:(nonnull const float*)frequencies count:(NSInteger)count outp
   filter.magnitudes(frequencies, count, kernel_->nyquistPeriod(), output);
 }
 
-- (void)set:(AUParameter *)parameter value:(AUValue)value {
-  kernel_->setParameterValue(parameter.address, value, 0);
+- (AUImplementorValueObserver)parameterValueObserverBlock {
+  return ^(AUParameter* parameter, AUValue value) {
+    kernel_->setParameterValue(parameter.address, value, 0);
+  };
 }
 
-- (AUValue)get:(AUParameter *)parameter { return kernel_->getParameterValue(parameter.address); }
+- (AUImplementorValueProvider)parameterValueProviderBlock {
+  return ^AUValue(AUParameter* parameter) {
+    return kernel_->getParameterValue(parameter.address);
+  };
+}
 
 @end

Packages/Sources/Kernel/include/Kernel.h

@@ -39,7 +39,7 @@ NS_ASSUME_NONNULL_BEGIN
 
  @returns AUInternalRenderBlock instance
  */
-- (AUInternalRenderBlock)internalRenderBlock:(nullable AUHostTransportStateBlock)tsb;
+- (AUInternalRenderBlock)internalRenderBlock;
 
 /**
  Set the bypass state.
@@ -62,9 +62,9 @@ NS_ASSUME_NONNULL_BEGIN
 // These are the functions that satisfy the AUParameterHandler protocol
 @interface KernelBridge (AUParameterHandler)
 
-- (void)set:(AUParameter *)parameter value:(AUValue)value;
+- (AUImplementorValueObserver)parameterValueObserverBlock;
 
-- (AUValue)get:(AUParameter *)parameter;
+- (AUImplementorValueProvider)parameterValueProviderBlock;
 
 @end
 

Packages/Sources/KernelBridge/KernelBridge.swift

@@ -5,4 +5,4 @@ import Kernel
 
 // Extend the Obj-C KernelBridge with protocols for interoperability with `FilterAudioUnit` and `AudioUnitParameters`
 // classes.
-extension KernelBridge: AUParameterHandler, AudioRenderer {}
+extension KernelBridge: @retroactive AUParameterHandler, @retroactive AudioRenderer {}