update to latest tibia

README.md

@@ -11,7 +11,7 @@ You can find information and documentation [on the official web page](https://ww
 
 ## Legal
 
-Copyright (C) 2021-2024 Orastron Srl unipersonale.
+Copyright (C) 2021-2025 Orastron Srl unipersonale.
 
 Authors: Stefano D'Angelo, Paolo Marrone.
 

examples/README.md

@@ -2,9 +2,9 @@
 
 ## Premise
 
-Each of these examples consists of a common part of code, shared by all examples, which contains all necessary boilerplate code and is not Brickworks-related, and a specific part which actually implements the audio engine. The common code is copied/generated by an external tool called [Tibia](https://git.orastron.com/orastron/tibia), which you first need to [run as outlined below](#tibia).
+Each of these examples consists of common and boilerplate code, which is not Brickworks-related, and a specific part which actually implements the audio engine. The common code is copied/generated by an external tool called [Tibia](https://git.orastron.com/orastron/tibia), which you first need to [run as outlined below](#tibia).
 
-Each subfolder contains an example, except the `common` folder, which contains a good deal of common code and common Tibia-related metadata. In order to build an example just `cd` to <code>*example*/*platform*</code> and use the following platform-specific instructions. Building for any platform requires a recent enough version of [GNU Make](https://www.gnu.org/software/make/) installed.
+Each subfolder contains an example, except the `common` folder, which contains a good deal of common code and common Tibia-related metadata. In order to build an example, once Tibia has generated common and boilerplate code, you can just `cd` to <code>*example*/*platform*</code> and use the following platform-specific instructions. Building for any platform requires a recent enough version of [GNU Make](https://www.gnu.org/software/make/) installed.
 
 ## Tibia
 
@@ -14,18 +14,19 @@ You need [Node.js](https://nodejs.org/en) and [npm](https://www.npmjs.com/) to b
 
 ### Usage
 
-Get [Tibia 0.0.4](https://git.orastron.com/orastron/tibia/releases/tag/v0.0.4), place it in the same directory as the Brickworks folder, and rename it as `tibia`. Then either `cd` to the Tibia folder and `npm install dot`, or install the [dot npm package](https://www.npmjs.com/package/dot) globally and make sure that the `NODE_PATH` environment variable is corretly set to find it.
+Get [Tibia 0.1.0](https://git.orastron.com/orastron/tibia/releases/tag/v0.1.0), extract the `tibia` folder and place it in the same parent directory as the Brickworks folder. Then either `cd` to the `tibia` folder and `npm install dot`, or install the [dot npm package](https://www.npmjs.com/package/dot) globally and make sure that the `NODE_PATH` environment variable is corretly set to find it.
 
 Now you can `cd` to the `examples` folder and run `./tibia_gen.sh` to copy/generate files for all examples, or otherwise run `./tibia_gen.sh common` to only copy/generate files in `examples/common` or <code>./tibia\_gen.sh *example*</code> to do the same for files in <code>examples/*example*</code>.
 
 If you want to remove all files copied/generated by Tibia, and thus restore the `examples` directory as it would appear in the official repository, run `./tibia_clean.sh` from the `examples` directory.
+
 ## VST3
 
 ### Prerequisites
 
 Windows (via [MSYS2/Mingw-w64](https://www.msys2.org/)), macOS, and Linux OSes are supported. Building tested with [GCC](https://gcc.gnu.org/), probably also works with [Clang](https://clang.llvm.org/).
 
-You also need to download or clone the [VST3 C API](https://github.com/steinbergmedia/vst3_c_api) and place it in the same folder as the Brickworks folder, or otherwise edit `common/src/vst3-make.json` and change `cflags` to point to the correct directory then finally [run Tibia](#tibia), or invoke `make` with appropriate `CFLAGS` straight from the command line.
+You also need to download or clone the [VST3 C API](https://github.com/steinbergmedia/vst3_c_api) and place it in the same parent folder as the Brickworks folder, or otherwise edit `common/src/vars-pre.mk` and change `CFLAGS_EXTRA` to point to the correct directory, or invoke `make` with appropriate `CFLAGS` straight from the command line.
 
 ### Build
 
@@ -41,7 +42,7 @@ If all went fine, you can install for the current user (i.e., into the user VST3
 
 Windows (via [MSYS2/Mingw-w64](https://www.msys2.org/)), macOS, and Linux OSes are supported. Building tested with [GCC](https://gcc.gnu.org/), probably also works with [Clang](https://clang.llvm.org/).
 
-You also need to download/install [LV2](https://lv2plug.in/), so that either header files are found by the compiler in its default include path, or otherwise you could add an appropriate `cflags` value to `common/src/lv2-make.json` and [run Tibia](#tibia), or invoke `make` with appropriate `CFLAGS` straight from the command line.
+You also need to download/install [LV2](https://lv2plug.in/), so that either header files are found by the compiler in its default include path, or otherwise you could add an appropriate `CFLAGS_EXTRA` value to `common/src/vars-pre.mk`, or invoke `make` with appropriate `CFLAGS` straight from the command line.
 
 ### Build
 
@@ -49,7 +50,7 @@ In order to build just type `make`. You'll find the resulting LV2 bundle in <cod
 
 ### Installation
 
-If all went fine, you can install for the current user (i.e., into the user VST3 folder) by invoking `make install-user` or for all users (i.e., into the system VST3 folder) by `make install`.
+If all went fine, you can install for the current user (i.e., into the user LV2 folder) by invoking `make install-user` or for all users (i.e., into the system LV2 folder) by `make install`.
 
 ## Web
 
@@ -71,7 +72,7 @@ The output files need to be served over HTTPS. A self-signed certificate is gene
 
 Building and firmware upload was only tested on Linux. You need [arm-none-eabi-gcc](https://developer.arm.com/Tools%20and%20Software/GNU%20Toolchain) (for building) and [dfu-util](https://dfu-util.sourceforge.net/) (for firmware upload) installed.
 
-You also need to clone/download [libDaisy](https://github.com/electro-smith/libDaisy) (beware that since version 7.0.0 you also need to clone submodules, see the [release notes](https://github.com/electro-smith/libDaisy/releases/tag/v7.0.0)), `cd` to it, and run `make`. You should either place it in the same folder as the Brickworks folder, or otherwise edit `common/src/daisy-seed-make.json` and change `libdaisyDir` to point to the correct directory then finally [run Tibia](#tibia).
+You also need to clone/download [libDaisy](https://github.com/electro-smith/libDaisy) (beware that since version 7.0.0 you also need to clone submodules, see the [release notes](https://github.com/electro-smith/libDaisy/releases/tag/v7.0.0)), `cd` to it, and run `make`. You should either place it in the same folder as the Brickworks folder, or otherwise edit `common/src/vars-pre.mk` and change `LIBDAISY_DIR` to point to the correct directory.
 
 ### Build
 
@@ -104,7 +105,7 @@ Android examples are built without the help of Android Studio or Gradle. You'll
   - Koltin Coroutines Core JVM (https://mvnrepository.com/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core-jvm);
 - `miniaudio.h` library (http://miniaud.io/).
 
-Then you'll probably also need to adjust paths and values in `common/src/android-make.json` and [run Tibia](#tibia).
+Then you'll probably also need to adjust paths and values in `common/src/vars-pre.mk`.
 
 \* You can install both the needed parts of the Android SDK and the NDK by downloading the so-called "command line tools" (https://developer.android.com/studio#command-line-tools-only) and using the included `sdkmanager` program. In such case you need to install the following packages: "platforms;android-*latest*",  "build-tools;*latest*", "platform-tools", and "ndk;*latest*".
 
@@ -116,7 +117,7 @@ In order to build just type `make`. You'll find the resulting `.apk` file in `bu
 
 If all went fine, you can branch your device and install using `make install` or otherwise install manually.
 
-### Usage and known issues
+### Usage
 
 Effect examples process audio input signals, therefore they will require permission to use the capture device.
 
@@ -130,7 +131,7 @@ iOS examples are not directly built by the supplied Makefiles. These rather gene
 
 For this to work you need to have the latest [Xcode](https://developer.apple.com/xcode/) and [XcodeGen](https://github.com/yonaskolb/XcodeGen) installed, as well as a copy of the latest [`miniaudio.h`](http://miniaud.io/).
 
-Finally, you might need to adjust header search path for miniaudio in `common/src/ios-make.json`, `common/src/ios-make-cxx-fx.json`, and `common/src/io-make-cxx-synth.json`, and [run Tibia](#tibia).
+Finally, you might need to adjust header search path for miniaudio in `common/src/ios-make.json` and [run Tibia](#tibia).
 
 ### Build
 
@@ -152,7 +153,7 @@ Synth examples use input MIDI and support hotplugging.
 
 Windows (via [MSYS2/Mingw-w64](https://www.msys2.org/)), macOS, and Linux OSes are supported. Building tested with [GCC](https://gcc.gnu.org/), probably also works with [Clang](https://clang.llvm.org/).
 
-Depending on the specific example, you might need to download or clone [tinywav](https://github.com/mhroth/tinywav) and/or [midi-parser](https://github.com/abique/midi-parser) and place them in the same folder as the Brickworks folder, or otherwise edit `common/src/cmd-make.json`
+Depending on the specific example, you might need to download or clone [tinywav](https://github.com/mhroth/tinywav) and/or [midi-parser](https://github.com/abique/midi-parser) and place them in the same folder as the Brickworks folder, or otherwise edit `common/src/vars-pre.mk`
 
 ### Build
 

examples/common/src/android-make.json

@@ -1,22 +0,0 @@
-{
-	"android_make": {
-		"cxxflags": "-I../../../include -I../../common/src -I../../../../miniaudio",
-		"commonDir": "../../common/android",
-		"keyStore": "../../common/src/keystore.jks",
-		"keyAlias": "androidkey",
-		"storePass": "android",
-		"keyPass": "android",
-		"sdkDir": "${HOME}/Android/Sdk",
-		"ndkVersion": "25.2.9519653",
-		"buildToolsVersion": "34.0.0",
-		"androidxDir": "${HOME}/Android/androidx",
-		"kotlinDir": "${HOME}/Android/kotlin",
-		"androidVersion": "34",
-		"androidxCoreVersion": "1.10.1",
-		"androidxLifecycleCommonVersion": "2.6.1",
-		"androidxVersionedparcelableVersion": "1.1.1",
-		"kotlinStdlibVersion": "1.9.0",
-		"kotlinxCoroutinesCoreVersion": "1.7.3",
-		"kotlinxCoroutinesCoreJVMVersion": "1.7.3"
-	}
-}

examples/common/src/cmd-make.json

@@ -1,7 +0,0 @@
-{
-	"cmd_make": {
-		"commonDir": "../../common/cmd",
-		"tinywavDir": "../../../../tinywav",
-		"midiParserDir": "../../../../midi-parser"
-	}
-}

examples/common/src/daisy-seed-make.json

@@ -1,6 +0,0 @@
-{
-	"daisy_seed_make": {
-		"commonDir": "../../common/daisy-seed",
-		"libdaisyDir": "../../../../libDaisy"
-	}
-}

examples/common/src/ios-make-cxx-fx.json

@@ -1,14 +0,0 @@
-{
-	"ios_make": {
-		"headerSearchPaths": [
-			"../../../../../../miniaudio",
-			"../../../../common/src",
-			"../../../../../include"
-		],
-		"deploymentTarget": 14.0,
-		"commonDir": "../../common/ios",
-		"pluginDir": "../../common/src/cxx-fx",
-		"cSrcs": "../../common/src/cxx-fx/impl.h",
-		"cxxSrcs": "../src/impl.cpp"
-	}
-}

examples/common/src/ios-make-cxx-synth.json

@@ -1,14 +0,0 @@
-{
-	"ios_make": {
-		"headerSearchPaths": [
-			"../../../../../../miniaudio",
-			"../../../../common/src",
-			"../../../../../include"
-		],
-		"deploymentTarget": 14.0,
-		"commonDir": "../../common/ios",
-		"pluginDir": "../../common/src/cxx-synth",
-		"cSrcs": "../../common/src/cxx-synth/impl.h",
-		"cxxSrcs": "../src/impl.cpp"
-	}
-}

examples/common/src/ios-make.json

@@ -5,8 +5,6 @@
 			"../../../../common/src",
 			"../../../../../include"
 		],
-		"deploymentTarget": 14.0,
-		"commonDir": "../../common/ios",
-		"pluginDir": "../src"
+		"deploymentTarget": 14.0
 	}
 }

examples/common/src/lv2-make.json

@@ -1,5 +0,0 @@
-{
-	"lv2_make": {
-		"commonDir": "../../common/lv2"
-	}
-}

examples/common/src/make-cxx-fx.json

@@ -1,8 +1,6 @@
 {
 	"make": {
-		"cxxSrcs": "../src/impl.cpp",
-		"cflags": "-I../../../include -I../../common/src -I../../common/src/cxx-fx -I../common/src",
-		"cxxflags": "-I../../../include -I../../common/src -I../../common/src/cxx-fx -I../common/src -std=c++11",
-		"pluginDir": "../../common/src/cxx-fx"
+		"mkincDir": "../../common/src",
+		"extra": "EXAMPLE_TYPE := cxx-fx"
 	}
 }

examples/common/src/make-cxx-synth.json

@@ -1,8 +1,6 @@
 {
 	"make": {
-		"cxxSrcs": "../src/impl.cpp",
-		"cflags": "-I../../../include -I../../common/src -I../../common/src/cxx-synth -I../common/src",
-		"cxxflags": "-I../../../include -I../../common/src -I../../common/src/cxx-synth -I../common/src -std=c++11",
-		"pluginDir": "../../common/src/cxx-synth"
+		"mkincDir": "../../common/src",
+		"extra": "EXAMPLE_TYPE := cxx-synth"
 	}
 }

examples/common/src/make.json

@@ -1,6 +1,6 @@
 {
 	"make": {
-		"cflags": "-I../../../include -I../../common/src -I../common/src",
-		"pluginDir": "../src"
+		"mkincDir": "../../common/src",
+		"extra": "EXAMPLE_TYPE := c"
 	}
 }

examples/common/src/rules-extra.mk

@@ -0,0 +1,3 @@
+ifeq ($(TEMPLATE), web)
+	include $(COMMON_DIR)/../web/rules-extra-web-demo.mk
+endif

examples/common/src/vars-extra.mk

@@ -0,0 +1,3 @@
+ifeq ($(TEMPLATE), web)
+	include $(COMMON_DIR)/../web/vars-extra-web-demo.mk
+endif

examples/common/src/vars-pre.mk

@@ -0,0 +1,76 @@
+API_DIR := ../api
+
+ifeq ($(EXAMPLE_TYPE), c)
+	PLUGIN_DIR := ../src
+	CFLAGS_EXTRA := -I../../../include -I../../common/src
+endif
+
+ifeq ($(EXAMPLE_TYPE), cxx-fx)
+	PLUGIN_DIR := ../../common/src/cxx-fx
+	CXX_SRCS_EXTRA := ../src/impl.cpp
+	CFLAGS_EXTRA := -I../../../include -I../../common/src -I../../common/src/cxx-fx
+	CXXFLAGS_EXTRA := -I../../../include -I../../common/src -I../../common/src/cxx-fx -std=c++11
+endif
+
+ifeq ($(EXAMPLE_TYPE), cxx-synth)
+	PLUGIN_DIR := ../../common/src/cxx-synth
+	CXX_SRCS_EXTRA := ../src/impl.cpp
+	CFLAGS_EXTRA := -I../../../include -I../../common/src -I../../common/src/cxx-synth
+	CXXFLAGS_EXTRA := -I../../../include -I../../common/src -I../../common/src/cxx-synth -std=c++11
+endif
+
+ifeq ($(TEMPLATE), cmd)
+	COMMON_DIR := ../../common/cmd
+	TINYWAV_DIR := ../../../../tinywav
+	MIDI_PARSER_DIR := ../../../../midi-parser
+endif
+
+ifeq ($(TEMPLATE), lv2)
+	COMMON_DIR := ../../common/lv2
+endif
+
+ifeq ($(TEMPLATE), vst3)
+	COMMON_DIR := ../../common/vst3
+	CFLAGS_EXTRA := $(CFLAGS_EXTRA) -I../../../../vst3_c_api
+endif
+
+ifeq ($(TEMPLATE), web)
+	COMMON_DIR := ../../common/web
+	CFLAGS_EXTRA := $(CFLAGS_EXTRA) -DWASM
+	CXXFLAGS_EXTRA := $(CXXFLAGS_EXTRA) -DWASM -std=c++11
+endif
+
+ifeq ($(TEMPLATE), daisy-seed)
+	COMMON_DIR := ../../common/daisy-seed
+	LIBDAISY_DIR := ../../../../libDaisy
+endif
+
+ifeq ($(TEMPLATE), ios)
+	COMMON_DIR := ../../common/ios
+	ifeq ($(EXAMPLE_TYPE), cxx-fx)
+		C_SRCS_EXTRA := ../../common/src/cxx-fx/impl.h
+	endif
+	ifeq ($(EXAMPLE_TYPE), cxx-synth)
+		C_SRCS_EXTRA := ../../common/src/cxx-synth/impl.h
+	endif
+endif
+
+ifeq ($(TEMPLATE), android)
+	COMMON_DIR := ../../common/android
+	CXXFLAGS_EXTRA := -I../../../include -I../../common/src -I../../../../miniaudio
+	KEY_STORE := ../../common/src/keystore.jks
+	KEY_ALIAS := androidkey
+	STORE_PASS := android
+	KEY_PASS := android
+	SDK_DIR := $(HOME)/Android/Sdk
+	ANDROIDX_DIR := $(HOME)/Android/androidx
+	KOTLIN_DIR := $(HOME)/Android/kotlin
+	NDK_VERSION := 28.0.13004108
+	BUILD_TOOLS_VERSION := 36.0.0
+	ANDROIDX_CORE_VERSION := 1.16.0
+	ANDROIDX_LIFECYCLE_COMMON_VERSION := 2.8.7
+	ANDROIDX_VERSIONEDPARCELABLE_VERSION := 1.2.1
+	KOTLIN_STDLIB_VERSION := 2.1.20
+	KOTLINX_COROUTINES_CORE_VERSION := 1.10.2
+	KOTLINX_COROUTINES_CORE_JVM_VERSION := 1.10.2
+endif

examples/common/src/vst3-make.json

@@ -1,6 +0,0 @@
-{
-	"vst3_make": {
-		"cflags": "-I../../../../vst3_c_api",
-		"commonDir": "../../common/vst3"
-	}
-}

examples/common/src/web-make.json

@@ -1,7 +0,0 @@
-{
-	"web_make": {
-		"cflags": "-DWASM",
-		"cxxflags": "-DWASM -std=c++11",
-		"commonDir": "../../common/web"
-	}
-}

examples/fx_ap1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order allpass example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_ap1",
 		"buses": [
 			{

examples/fx_ap2/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 2nd-order allpass example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_ap2",
 		"buses": [
 			{

examples/fx_balance/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks stereo balance example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_balance",
 		"buses": [
 			{

examples/fx_bitcrush/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks bitcrusher example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_bitcrush",
 		"buses": [
 			{

examples/fx_cab/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks cab simulator example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_cab",
 		"buses": [
 			{

examples/fx_chorus/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks chorus example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_chorus",
 		"buses": [
 			{

examples/fx_clip/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks hard clipper example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_clip",
 		"buses": [
 			{

examples/fx_comb/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks comb filter example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_comb",
 		"buses": [
 			{

examples/fx_comp/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks compressor example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_comp",
 		"buses": [
 			{

examples/fx_delay/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks non-smoothed delay line example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_delay",
 		"buses": [
 			{

examples/fx_dist/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks distortion example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_dist",
 		"buses": [
 			{

examples/fx_drive/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks overdrive example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_drive",
 		"buses": [
 			{

examples/fx_eq_3band/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 3-band parametric equalizer example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_eq_3band",
 		"buses": [
 			{

examples/fx_flanger/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks flanger example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_flanger",
 		"buses": [
 			{

examples/fx_fuzz/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks fuzz example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_fuzz",
 		"buses": [
 			{

examples/fx_hp1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order highpass example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_hp1",
 		"buses": [
 			{

examples/fx_hs1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order high shelf example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_hs1",
 		"buses": [
 			{

examples/fx_iir1/src/android.json

@@ -0,0 +1,5 @@
+{
+	"android": {
+		"javaPackageName": "com.orastron.bw_example_fx_iir1"
+	}
+}

examples/fx_iir1/src/daisy-seed.json

@@ -0,0 +1,5 @@
+{
+	"daisy_seed": {
+		"parameterPins": [ 15, 16, 17 ]
+	}
+}

examples/fx_iir1/src/ios.json

@@ -0,0 +1,5 @@
+{
+	"ios": {
+		"productBundleIdentifier": "com.orastron.bw_example_fx_iir1"
+	}
+}

examples/fx_iir1/src/lv2.json

@@ -0,0 +1,10 @@
+{
+	"lv2": {
+		"prefixes": {
+			"bw_examples": "https://www.orastron.com/brickworks/examples/"
+		},
+		"uri": "@bw_examples:fx_iir1",
+		"types": [ "@lv2:FilterPlugin" ],
+		"version": "0.0"
+	}
+}

examples/fx_iir1/src/plugin.h

@@ -0,0 +1,93 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2025 Orastron Srl unipersonale
+ *
+ * Brickworks is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License.
+ *
+ * Brickworks is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Brickworks.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * File author: Stefano D'Angelo
+ */
+
+#include "common.h"
+#include <bw_iir1.h>
+
+typedef struct plugin {
+	float	sample_rate;
+	float	cutoff;
+	float	coeff_x;
+	float	coeff_lp;
+	float	s;
+	float	b0;
+	float	b1;
+	float	a1;
+	char	to_reset;
+} plugin;
+
+static void plugin_init(plugin *instance, plugin_callbacks *cbs) {
+	(void)instance;
+	(void)cbs;
+}
+
+static void plugin_fini(plugin *instance) {
+	(void)instance;
+}
+
+static void plugin_set_sample_rate(plugin *instance, float sample_rate) {
+	instance->sample_rate = sample_rate;
+}
+
+static size_t plugin_mem_req(plugin *instance) {
+	(void)instance;
+	return 0;
+}
+
+static void plugin_mem_set(plugin *instance, void *mem) {
+	(void)instance;
+	(void)mem;
+}
+
+static void plugin_reset(plugin *instance) {
+	bw_iir1_coeffs_mm1(instance->sample_rate, instance->cutoff, 1, instance->cutoff, instance->coeff_x, instance->coeff_lp, &instance->b0, &instance->b1, &instance->a1);
+	float y;
+	bw_iir1_reset(0.f, &y, &instance->s, instance->b0, instance->b1, instance->a1);
+	instance->to_reset = 0;
+}
+
+static void plugin_set_parameter(plugin *instance, size_t index, float value) {
+	switch (index) {
+	case plugin_parameter_cutoff:
+		instance->cutoff = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_in:
+		instance->coeff_x = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_lp:
+		instance->coeff_lp = value;
+		instance->to_reset = 1;
+		break;
+	}
+}
+
+static float plugin_get_parameter(plugin *instance, size_t index) {
+	(void)instance;
+	(void)index;
+	return 0.f;
+}
+
+static void plugin_process(plugin *instance, const float **inputs, float **outputs, size_t n_samples) {
+	if (instance->to_reset)
+		plugin_reset(instance);
+	bw_iir1_process(inputs[0], outputs[0], &instance->s, instance->b0, instance->b1, instance->a1, n_samples);
+}

examples/fx_iir1/src/product.json

@@ -0,0 +1,57 @@
+{
+	"product": {
+		"name":	"Brickworks 1st-order IIR filter example",
+		"bundleName": "bw_example_fx_iir1",
+		"buses": [
+			{
+				"type":	"audio",
+				"direction": "input",
+				"channels": "mono",
+				"name": "Input",
+				"shortName": "Input",
+				"id": "input"
+			},
+			{
+				"type": "audio",
+				"direction": "output",
+				"channels": "mono",
+				"name": "Output",
+				"shortName": "Output",
+				"id": "output"
+			}
+		],
+		"parameters": [
+			{
+				"name": "Cutoff",
+				"shortName": "Cutoff",
+				"id": "cutoff",
+				"direction": "input",
+				"defaultValue": 1000.0,
+				"minimum": 20.0,
+				"maximum": 20000.0,
+				"unit": "hz",
+				"map": "logarithmic"
+			},
+			{
+				"name": "Input coefficient",
+				"shortName": "In coeff",
+				"id": "in",
+				"direction": "input",
+				"defaultValue": 1.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			},
+			{
+				"name": "Lowpass coefficient",
+				"shortName": "LP coeff",
+				"id": "lp",
+				"direction": "input",
+				"defaultValue": 0.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			}
+		]
+	}
+}

examples/fx_iir1/src/vst3.json

@@ -0,0 +1,11 @@
+{
+	"vst3": {
+		"plugin": {
+			"cid": "0c511d73a6de41dabd8b3658c0b10ad9"
+		},
+		"controller": {
+			"cid": "dfc802ba451349e48c2166fbb624113a"
+		},
+		"subCategory": "Fx|Filter"
+	}
+}

examples/fx_iir2/src/android.json

@@ -0,0 +1,5 @@
+{
+	"android": {
+		"javaPackageName": "com.orastron.bw_example_fx_iir2"
+	}
+}

examples/fx_iir2/src/daisy-seed.json

@@ -0,0 +1,5 @@
+{
+	"daisy_seed": {
+		"parameterPins": [ 15, 16, 17, 18, 19, 20 ]
+	}
+}

examples/fx_iir2/src/ios.json

@@ -0,0 +1,5 @@
+{
+	"ios": {
+		"productBundleIdentifier": "com.orastron.bw_example_fx_iir2"
+	}
+}

examples/fx_iir2/src/lv2.json

@@ -0,0 +1,10 @@
+{
+	"lv2": {
+		"prefixes": {
+			"bw_examples": "https://www.orastron.com/brickworks/examples/"
+		},
+		"uri": "@bw_examples:fx_iir2",
+		"types": [ "@lv2:FilterPlugin" ],
+		"version": "0.0"
+	}
+}

examples/fx_iir2/src/plugin.h

@@ -0,0 +1,111 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2025 Orastron Srl unipersonale
+ *
+ * Brickworks is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License.
+ *
+ * Brickworks is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Brickworks.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * File author: Stefano D'Angelo
+ */
+
+#include "common.h"
+#include <bw_iir2.h>
+
+typedef struct plugin {
+	float	sample_rate;
+	float	cutoff;
+	float	q;
+	float	coeff_x;
+	float	coeff_lp;
+	float	coeff_bp;
+	float	coeff_hp;
+	float	s1;
+	float	s2;
+	float	b0;
+	float	b1;
+	float	b2;
+	float	a1;
+	float	a2;
+	char	to_reset;
+} plugin;
+
+static void plugin_init(plugin *instance, plugin_callbacks *cbs) {
+	(void)instance;
+	(void)cbs;
+}
+
+static void plugin_fini(plugin *instance) {
+	(void)instance;
+}
+
+static void plugin_set_sample_rate(plugin *instance, float sample_rate) {
+	instance->sample_rate = sample_rate;
+}
+
+static size_t plugin_mem_req(plugin *instance) {
+	(void)instance;
+	return 0;
+}
+
+static void plugin_mem_set(plugin *instance, void *mem) {
+	(void)instance;
+	(void)mem;
+}
+
+static void plugin_reset(plugin *instance) {
+	bw_iir2_coeffs_mm2(instance->sample_rate, instance->cutoff, instance->q, 1, instance->cutoff, instance->coeff_x, instance->coeff_lp, instance->coeff_bp, instance->coeff_hp, &instance->b0, &instance->b1, &instance->b2, &instance->a1, &instance->a2);
+	float y;
+	bw_iir2_reset(0.f, &y, &instance->s1, &instance->s2, instance->b0, instance->b1, instance->b2, instance->a1, instance->a2);
+	instance->to_reset = 0;
+}
+
+static void plugin_set_parameter(plugin *instance, size_t index, float value) {
+	switch (index) {
+	case plugin_parameter_cutoff:
+		instance->cutoff = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_q:
+		instance->q = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_in:
+		instance->coeff_x = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_lp:
+		instance->coeff_lp = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_bp:
+		instance->coeff_bp = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_hp:
+		instance->coeff_hp = value;
+		instance->to_reset = 1;
+		break;
+	}
+}
+
+static float plugin_get_parameter(plugin *instance, size_t index) {
+	(void)instance;
+	(void)index;
+	return 0.f;
+}
+
+static void plugin_process(plugin *instance, const float **inputs, float **outputs, size_t n_samples) {
+	if (instance->to_reset)
+		plugin_reset(instance);
+	bw_iir2_process(inputs[0], outputs[0], &instance->s1, &instance->s2, instance->b0, instance->b1, instance->b2, instance->a1, instance->a2, n_samples);
+}

examples/fx_iir2/src/product.json

@@ -0,0 +1,87 @@
+{
+	"product": {
+		"name":	"Brickworks 2nd-order IIR filter example",
+		"bundleName": "bw_example_fx_iir2",
+		"buses": [
+			{
+				"type":	"audio",
+				"direction": "input",
+				"channels": "mono",
+				"name": "Input",
+				"shortName": "Input",
+				"id": "input"
+			},
+			{
+				"type": "audio",
+				"direction": "output",
+				"channels": "mono",
+				"name": "Output",
+				"shortName": "Output",
+				"id": "output"
+			}
+		],
+		"parameters": [
+			{
+				"name": "Cutoff",
+				"shortName": "Cutoff",
+				"id": "cutoff",
+				"direction": "input",
+				"defaultValue": 1000.0,
+				"minimum": 20.0,
+				"maximum": 20000.0,
+				"unit": "hz",
+				"map": "logarithmic"
+			},
+			{
+				"name": "Q",
+				"shortName": "Q",
+				"id": "q",
+				"direction": "input",
+				"defaultValue": 0.5,
+				"minimum": 0.5,
+				"maximum": 10.0,
+				"map": "linear"
+			},
+			{
+				"name": "Input coefficient",
+				"shortName": "In coeff",
+				"id": "in",
+				"direction": "input",
+				"defaultValue": 1.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			},
+			{
+				"name": "Lowpass coefficient",
+				"shortName": "LP coeff",
+				"id": "lp",
+				"direction": "input",
+				"defaultValue": 0.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			},
+			{
+				"name": "Bandpass coefficient",
+				"shortName": "BP coeff",
+				"id": "bp",
+				"direction": "input",
+				"defaultValue": 0.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			},
+			{
+				"name": "Highpass coefficient",
+				"shortName": "HP coeff",
+				"id": "hp",
+				"direction": "input",
+				"defaultValue": 0.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			}
+		]
+	}
+}

examples/fx_iir2/src/vst3.json

@@ -0,0 +1,11 @@
+{
+	"vst3": {
+		"plugin": {
+			"cid": "b7c897b2e3984dc7b13c6d6507c766a5"
+		},
+		"controller": {
+			"cid": "00f0578ef0894a90a02427cbde067b8c"
+		},
+		"subCategory": "Fx|Filter"
+	}
+}

examples/fx_lp1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order lowpass example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_lp1",
 		"buses": [
 			{

examples/fx_ls1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order low shelf example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_ls1",
 		"buses": [
 			{

examples/fx_mm1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order multimode filter example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_mm1",
 		"buses": [
 			{

examples/fx_mm2/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 2nd-order multimode filter example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_mm2",
 		"buses": [
 			{

examples/fx_noise_gate/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks noise gate example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_noise_gate",
 		"buses": [
 			{

examples/fx_notch/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks notch filter example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_notch",
 		"buses": [
 			{

examples/fx_one_pole/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks one-pole lowpass example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_one_pole",
 		"buses": [
 			{

examples/fx_pan/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks stereo panner example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_pan",
 		"buses": [
 			{

examples/fx_phaser/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks phaser example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_phaser",
 		"buses": [
 			{

examples/fx_reverb/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks stereo reverb example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_reverb",
 		"buses": [
 			{

examples/fx_ring_mod/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks ring modulator example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_ring_mod",
 		"buses": [
 			{

examples/fx_satur/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks saturation example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_satur",
 		"buses": [
 			{

examples/fx_slew_lim/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks slew-rate limiter example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_slew_lim",
 		"buses": [
 			{

examples/fx_svf/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks state variable filter example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_svf",
 		"buses": [
 			{

examples/fx_trem/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks tremolo example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_trem",
 		"buses": [
 			{

examples/fx_vibrato/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks vibrato example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_vibrato",
 		"buses": [
 			{

examples/fx_wah/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks wah example",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fx_wah",
 		"buses": [
 			{

examples/fxpp_ap1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order allpass example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_ap1",
 		"buses": [
 			{

examples/fxpp_ap2/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 2nd-order allpass example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_ap2",
 		"buses": [
 			{

examples/fxpp_balance/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks stereo balance example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_balance",
 		"buses": [
 			{

examples/fxpp_bitcrush/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks bitcrusher example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_bitcrush",
 		"buses": [
 			{

examples/fxpp_cab/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks cab simulator example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_cab",
 		"buses": [
 			{

examples/fxpp_chorus/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks chorus example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_chorus",
 		"buses": [
 			{

examples/fxpp_clip/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks hard clipper example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_clip",
 		"buses": [
 			{

examples/fxpp_comb/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks comb filter example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_comb",
 		"buses": [
 			{

examples/fxpp_comp/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks compressor example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_comp",
 		"buses": [
 			{

examples/fxpp_delay/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks non-smoothed delay line example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_delay",
 		"buses": [
 			{

examples/fxpp_dist/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks distortion example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_dist",
 		"buses": [
 			{

examples/fxpp_drive/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks overdrive example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_drive",
 		"buses": [
 			{

examples/fxpp_eq_3band/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 3-band parametric equalizer example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_eq_3band",
 		"buses": [
 			{

examples/fxpp_flanger/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks flanger example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_flanger",
 		"buses": [
 			{

examples/fxpp_fuzz/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks fuzz example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_fuzz",
 		"buses": [
 			{

examples/fxpp_hp1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order highpass example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_hp1",
 		"buses": [
 			{

examples/fxpp_hs1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order high shelf example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_hs1",
 		"buses": [
 			{

examples/fxpp_iir1/src/android.json

@@ -0,0 +1,5 @@
+{
+	"android": {
+		"javaPackageName": "com.orastron.bw_example_fxpp_iir1"
+	}
+}

examples/fxpp_iir1/src/daisy-seed.json

@@ -0,0 +1,5 @@
+{
+	"daisy_seed": {
+		"parameterPins": [ 15, 16, 17 ]
+	}
+}

examples/fxpp_iir1/src/impl.cpp

@@ -0,0 +1,94 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2025 Orastron Srl unipersonale
+ *
+ * Brickworks is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License.
+ *
+ * Brickworks is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Brickworks.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * File author: Stefano D'Angelo
+ */
+
+#include "impl.h"
+
+#include "common.h"
+#include <bw_iir1.h>
+
+using namespace Brickworks;
+
+extern "C" {
+
+typedef struct plugin {
+	float	sample_rate;
+	float	cutoff;
+	float	coeff_x;
+	float	coeff_lp;
+	float	s;
+	float	b0;
+	float	b1;
+	float	a1;
+	char	to_reset;
+} plugin;
+
+impl impl_new(void) {
+	return reinterpret_cast<impl>(new plugin);
+}
+
+void impl_free(impl handle) {
+	delete reinterpret_cast<plugin *>(handle);
+}
+
+void impl_set_sample_rate(impl handle, float sample_rate) {
+	plugin *instance = reinterpret_cast<plugin *>(handle);
+	instance->sample_rate = sample_rate;
+}
+
+void impl_reset(impl handle) {
+	plugin *instance = reinterpret_cast<plugin *>(handle);
+	bw_iir1_coeffs_mm1(instance->sample_rate, instance->cutoff, 1, instance->cutoff, instance->coeff_x, instance->coeff_lp, &instance->b0, &instance->b1, &instance->a1);
+	float x0[1] = { 0.f };
+	iir1Reset<1>(x0, BW_NULL, &instance->s, instance->b0, instance->b1, instance->a1);
+	instance->to_reset = 0;
+}
+
+void impl_set_parameter(impl handle, size_t index, float value) {
+	plugin *instance = reinterpret_cast<plugin *>(handle);
+	switch (index) {
+	case plugin_parameter_cutoff:
+		instance->cutoff = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_in:
+		instance->coeff_x = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_lp:
+		instance->coeff_lp = value;
+		instance->to_reset = 1;
+		break;
+	}
+}
+
+float impl_get_parameter(impl handle, size_t index) {
+	(void)handle;
+	(void)index;
+	return 0.f;
+}
+
+void impl_process(impl handle, const float **inputs, float **outputs, size_t n_samples) {
+	plugin *instance = reinterpret_cast<plugin *>(handle);
+	if (instance->to_reset)
+		impl_reset(instance);
+	iir1Process<1>(inputs, outputs, &instance->s, instance->b0, instance->b1, instance->a1, n_samples);
+}
+
+}

examples/fxpp_iir1/src/ios.json

@@ -0,0 +1,5 @@
+{
+	"ios": {
+		"productBundleIdentifier": "com.orastron.bw_example_fxpp_iir1"
+	}
+}

examples/fxpp_iir1/src/lv2.json

@@ -0,0 +1,10 @@
+{
+	"lv2": {
+		"prefixes": {
+			"bw_examples": "https://www.orastron.com/brickworks/examples/"
+		},
+		"uri": "@bw_examples:fxpp_iir1",
+		"types": [ "@lv2:FilterPlugin" ],
+		"version": "0.0"
+	}
+}

examples/fxpp_iir1/src/product.json

@@ -0,0 +1,57 @@
+{
+	"product": {
+		"name":	"Brickworks 1st-order IIR filter example (C++)",
+		"bundleName": "bw_example_fxpp_iir1",
+		"buses": [
+			{
+				"type":	"audio",
+				"direction": "input",
+				"channels": "mono",
+				"name": "Input",
+				"shortName": "Input",
+				"id": "input"
+			},
+			{
+				"type": "audio",
+				"direction": "output",
+				"channels": "mono",
+				"name": "Output",
+				"shortName": "Output",
+				"id": "output"
+			}
+		],
+		"parameters": [
+			{
+				"name": "Cutoff",
+				"shortName": "Cutoff",
+				"id": "cutoff",
+				"direction": "input",
+				"defaultValue": 1000.0,
+				"minimum": 20.0,
+				"maximum": 20000.0,
+				"unit": "hz",
+				"map": "logarithmic"
+			},
+			{
+				"name": "Input coefficient",
+				"shortName": "In coeff",
+				"id": "in",
+				"direction": "input",
+				"defaultValue": 1.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			},
+			{
+				"name": "Lowpass coefficient",
+				"shortName": "LP coeff",
+				"id": "lp",
+				"direction": "input",
+				"defaultValue": 0.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			}
+		]
+	}
+}

examples/fxpp_iir1/src/vst3.json

@@ -0,0 +1,11 @@
+{
+	"vst3": {
+		"plugin": {
+			"cid": "ebef712c02ad4f579ab633d473a18894"
+		},
+		"controller": {
+			"cid": "9c81c2d835fa457c9d393ef081e8f1f4"
+		},
+		"subCategory": "Fx|Filter"
+	}
+}

examples/fxpp_iir2/src/android.json

@@ -0,0 +1,5 @@
+{
+	"android": {
+		"javaPackageName": "com.orastron.bw_example_fxpp_iir2"
+	}
+}

examples/fxpp_iir2/src/daisy-seed.json

@@ -0,0 +1,5 @@
+{
+	"daisy_seed": {
+		"parameterPins": [ 15, 16, 17, 18, 19, 20 ]
+	}
+}

examples/fxpp_iir2/src/impl.cpp

@@ -0,0 +1,112 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2025 Orastron Srl unipersonale
+ *
+ * Brickworks is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License.
+ *
+ * Brickworks is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Brickworks.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * File author: Stefano D'Angelo
+ */
+
+#include "impl.h"
+
+#include "common.h"
+#include <bw_iir2.h>
+
+using namespace Brickworks;
+
+extern "C" {
+
+typedef struct plugin {
+	float	sample_rate;
+	float	cutoff;
+	float	q;
+	float	coeff_x;
+	float	coeff_lp;
+	float	coeff_bp;
+	float	coeff_hp;
+	float	s1;
+	float	s2;
+	float	b0;
+	float	b1;
+	float	b2;
+	float	a1;
+	float	a2;
+	char	to_reset;
+} plugin;
+
+impl impl_new(void) {
+	return reinterpret_cast<impl>(new plugin);
+}
+
+void impl_free(impl handle) {
+	delete reinterpret_cast<plugin *>(handle);
+}
+
+void impl_set_sample_rate(impl handle, float sample_rate) {
+	plugin *instance = reinterpret_cast<plugin *>(handle);
+	instance->sample_rate = sample_rate;
+}
+
+void impl_reset(impl handle) {
+	plugin *instance = reinterpret_cast<plugin *>(handle);
+	bw_iir2_coeffs_mm2(instance->sample_rate, instance->cutoff, instance->q, 1, instance->cutoff, instance->coeff_x, instance->coeff_lp, instance->coeff_bp, instance->coeff_hp, &instance->b0, &instance->b1, &instance->b2, &instance->a1, &instance->a2);
+	float x0[1] = { 0.f };
+	iir2Reset<1>(x0, BW_NULL, &instance->s1, &instance->s2, instance->b0, instance->b1, instance->b2, instance->a1, instance->a2);
+	instance->to_reset = 0;
+}
+
+void impl_set_parameter(impl handle, size_t index, float value) {
+	plugin *instance = reinterpret_cast<plugin *>(handle);
+	switch (index) {
+	case plugin_parameter_cutoff:
+		instance->cutoff = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_q:
+		instance->q = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_in:
+		instance->coeff_x = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_lp:
+		instance->coeff_lp = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_bp:
+		instance->coeff_bp = value;
+		instance->to_reset = 1;
+		break;
+	case plugin_parameter_hp:
+		instance->coeff_hp = value;
+		instance->to_reset = 1;
+		break;
+	}
+}
+
+float impl_get_parameter(impl handle, size_t index) {
+	(void)handle;
+	(void)index;
+	return 0.f;
+}
+
+void impl_process(impl handle, const float **inputs, float **outputs, size_t n_samples) {
+	plugin *instance = reinterpret_cast<plugin *>(handle);
+	if (instance->to_reset)
+		impl_reset(instance);
+	iir2Process<1>(inputs, outputs, &instance->s1, &instance->s2, instance->b0, instance->b1, instance->b2, instance->a1, instance->a2, n_samples);
+}
+
+}

examples/fxpp_iir2/src/ios.json

@@ -0,0 +1,5 @@
+{
+	"ios": {
+		"productBundleIdentifier": "com.orastron.bw_example_fxpp_iir2"
+	}
+}

examples/fxpp_iir2/src/lv2.json

@@ -0,0 +1,10 @@
+{
+	"lv2": {
+		"prefixes": {
+			"bw_examples": "https://www.orastron.com/brickworks/examples/"
+		},
+		"uri": "@bw_examples:fxpp_iir2",
+		"types": [ "@lv2:FilterPlugin" ],
+		"version": "0.0"
+	}
+}

examples/fxpp_iir2/src/product.json

@@ -0,0 +1,87 @@
+{
+	"product": {
+		"name":	"Brickworks 2nd-order IIR filter example (C++)",
+		"bundleName": "bw_example_fxpp_iir2",
+		"buses": [
+			{
+				"type":	"audio",
+				"direction": "input",
+				"channels": "mono",
+				"name": "Input",
+				"shortName": "Input",
+				"id": "input"
+			},
+			{
+				"type": "audio",
+				"direction": "output",
+				"channels": "mono",
+				"name": "Output",
+				"shortName": "Output",
+				"id": "output"
+			}
+		],
+		"parameters": [
+			{
+				"name": "Cutoff",
+				"shortName": "Cutoff",
+				"id": "cutoff",
+				"direction": "input",
+				"defaultValue": 1000.0,
+				"minimum": 20.0,
+				"maximum": 20000.0,
+				"unit": "hz",
+				"map": "logarithmic"
+			},
+			{
+				"name": "Q",
+				"shortName": "Q",
+				"id": "q",
+				"direction": "input",
+				"defaultValue": 0.5,
+				"minimum": 0.5,
+				"maximum": 10.0,
+				"map": "linear"
+			},
+			{
+				"name": "Input coefficient",
+				"shortName": "In coeff",
+				"id": "in",
+				"direction": "input",
+				"defaultValue": 1.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			},
+			{
+				"name": "Lowpass coefficient",
+				"shortName": "LP coeff",
+				"id": "lp",
+				"direction": "input",
+				"defaultValue": 0.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			},
+			{
+				"name": "Bandpass coefficient",
+				"shortName": "BP coeff",
+				"id": "bp",
+				"direction": "input",
+				"defaultValue": 0.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			},
+			{
+				"name": "Highpass coefficient",
+				"shortName": "HP coeff",
+				"id": "hp",
+				"direction": "input",
+				"defaultValue": 0.0,
+				"minimum": -1.0,
+				"maximum": 1.0,
+				"map": "linear"
+			}
+		]
+	}
+}

examples/fxpp_iir2/src/vst3.json

@@ -0,0 +1,11 @@
+{
+	"vst3": {
+		"plugin": {
+			"cid": "5daf6226848c4b85a83563377a27ecaf"
+		},
+		"controller": {
+			"cid": "ef53040c87b34e37b288476cdb90cc77"
+		},
+		"subCategory": "Fx|Filter"
+	}
+}

examples/fxpp_lp1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order lowpass example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_lp1",
 		"buses": [
 			{

examples/fxpp_ls1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order low shelf example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_ls1",
 		"buses": [
 			{

examples/fxpp_mm1/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 1st-order multimode filter example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_mm1",
 		"buses": [
 			{

examples/fxpp_mm2/src/product.json

@@ -1,8 +1,6 @@
 {
 	"product": {
 		"name":	"Brickworks 2nd-order multimode filter example (C++)",
-		"version": "1.1.0",
-		"buildVersion": "1",
 		"bundleName": "bw_example_fxpp_mm2",
 		"buses": [
 			{