bwpp_{bd_reduce,src_reduce,clip,src_int} + fxpp_{bitcrush,clip}

TODO

@@ -56,6 +56,8 @@ code:
 * peak gain + Q ???
 * bwpp -> bwxx
 * float -> double, etc. ?
+* sr_reduce reset_coeffs? update_coeffs? process_multi?
+* src(_int) process_multi?
 
 build system:
 * make makefiles handle paths with spaces etc

examples/fxpp_bitcrush/daisy-seed/Makefile

@@ -0,0 +1,7 @@
+ROOT_DIR := $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+
+TARGET = bw_example_fxpp_bitcrush
+
+CPP_SOURCES_EXTRA = ${ROOT_DIR}/../src/bw_example_fxpp_bitcrush.cpp
+
+include ${ROOT_DIR}/../../common/daisy-seed/daisy-seed.mk

examples/fxpp_bitcrush/daisy-seed/config_daisy_seed.h

@@ -0,0 +1,36 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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 authors: Stefano D'Angelo
+ */
+
+#ifndef _CONFIG_DAISY_SEED_H
+#define _CONFIG_DAISY_SEED_H
+
+struct config_pin {
+	int	param_index;
+	int	pin;
+};
+
+#define NUM_PINS 	2
+
+static struct config_pin config_pins[NUM_PINS] = {
+	{ 0, 15 },
+	{ 1, 16 }
+};
+
+#endif

examples/fxpp_bitcrush/src/bw_example_fxpp_bitcrush.cpp

@@ -0,0 +1,56 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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 "bw_example_fxpp_bitcrush.h"
+
+void bw_example_fxpp_bitcrush_init(bw_example_fxpp_bitcrush *instance) {
+	(void)instance;
+}
+
+void bw_example_fxpp_bitcrush_set_sample_rate(bw_example_fxpp_bitcrush *instance, float sample_rate) {
+	(void)instance;
+	(void)sample_rate;
+}
+
+void bw_example_fxpp_bitcrush_reset(bw_example_fxpp_bitcrush *instance) {
+	instance->srReduce.reset();
+	instance->bdReduce.reset();
+}
+
+void bw_example_fxpp_bitcrush_process(bw_example_fxpp_bitcrush *instance, const float** x, float** y, int n_samples) {
+	instance->srReduce.process({x[0]}, {y[0]}, n_samples);
+	instance->bdReduce.process({y[0]}, {y[0]}, n_samples);
+}
+
+void bw_example_fxpp_bitcrush_set_parameter(bw_example_fxpp_bitcrush *instance, int index, float value) {
+	instance->params[index] = value;
+	switch (index) {
+	case p_sr_ratio:
+		instance->srReduce.setRatio(value);
+		break;
+	case p_bit_depth:
+		instance->bdReduce.setBitDepth(1 + (int)(15.f * value));
+		break;
+	}
+}
+
+float bw_example_fxpp_bitcrush_get_parameter(bw_example_fxpp_bitcrush *instance, int index) {
+	return instance->params[index];
+}

examples/fxpp_bitcrush/src/bw_example_fxpp_bitcrush.h

@@ -0,0 +1,56 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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
+ */
+
+#ifndef _BW_EXAMPLE_FXPP_BITCRUSH_H
+#define _BW_EXAMPLE_FXPP_BITCRUSH_H
+
+#include <bwpp_sr_reduce.h>
+#include <bwpp_bd_reduce.h>
+
+using namespace Brickworks;
+
+extern "C" {
+
+enum {
+	p_sr_ratio,
+	p_bit_depth,
+	p_n
+};
+
+struct _bw_example_fxpp_bitcrush {
+	// Sub-components
+	SRReduce<1>	srReduce;
+	BDReduce<1>	bdReduce;
+
+	// Parameters
+	float		params[p_n];
+};
+typedef struct _bw_example_fxpp_bitcrush bw_example_fxpp_bitcrush;
+
+void bw_example_fxpp_bitcrush_init(bw_example_fxpp_bitcrush *instance);
+void bw_example_fxpp_bitcrush_set_sample_rate(bw_example_fxpp_bitcrush *instance, float sample_rate);
+void bw_example_fxpp_bitcrush_reset(bw_example_fxpp_bitcrush *instance);
+void bw_example_fxpp_bitcrush_process(bw_example_fxpp_bitcrush *instance, const float** x, float** y, int n_samples);
+void bw_example_fxpp_bitcrush_set_parameter(bw_example_fxpp_bitcrush *instance, int index, float value);
+float bw_example_fxpp_bitcrush_get_parameter(bw_example_fxpp_bitcrush *instance, int index);
+
+}
+
+#endif

examples/fxpp_bitcrush/src/config.h

@@ -0,0 +1,88 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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 authors: Stefano D'Angelo
+ */
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+
+// Definitions
+
+#define IO_MONO			1
+#define IO_STEREO		(1<<1)
+
+struct config_io_bus {
+	const char	*name;
+	char		 out;
+	char		 aux;
+	char		 cv;
+	char		 configs;
+};
+
+struct config_parameter {
+	const char	*name;
+	const char	*shortName;
+	const char	*units;
+	char		 out;
+	char		 bypass;
+	int		 steps;
+	float		 defaultValueUnmapped;
+};
+
+// Data
+
+#define COMPANY_NAME		"Orastron"
+#define COMPANY_WEBSITE		"https://www.orastron.com/"
+#define COMPANY_MAILTO		"mailto:info@orastron.com"
+
+#define PLUGIN_NAME		"bw_example_fxpp_bitcrush"
+#define PLUGIN_VERSION		"0.5.0"
+
+#define NUM_BUSES_IN		1
+#define NUM_BUSES_OUT		1
+#define NUM_CHANNELS_IN		1
+#define NUM_CHANNELS_OUT	1
+
+static struct config_io_bus config_buses_in[NUM_BUSES_IN] = {
+	{ "Audio in", 0, 0, 0, IO_MONO }
+};
+
+static struct config_io_bus config_buses_out[NUM_BUSES_OUT] = {
+	{ "Audio out", 1, 0, 0, IO_MONO }
+};
+
+#define NUM_PARAMETERS		2
+
+static struct config_parameter config_parameters[NUM_PARAMETERS] = {
+	{ "Sample rate ratio", "SR ratio", "", 0, 0, 0, 1.f },
+	{ "Bit depth", "Bit depth", "", 0, 0, 14, 1.f }
+};
+
+// Internal API
+
+#include "bw_example_fxpp_bitcrush.h"
+
+#define P_TYPE				bw_example_fxpp_bitcrush
+#define P_INIT				bw_example_fxpp_bitcrush_init
+#define P_SET_SAMPLE_RATE		bw_example_fxpp_bitcrush_set_sample_rate
+#define P_RESET				bw_example_fxpp_bitcrush_reset
+#define P_PROCESS			bw_example_fxpp_bitcrush_process
+#define P_SET_PARAMETER			bw_example_fxpp_bitcrush_set_parameter
+#define P_GET_PARAMETER			bw_example_fxpp_bitcrush_get_parameter
+
+#endif

examples/fxpp_bitcrush/vst3/Makefile

@@ -0,0 +1,6 @@
+ROOT_DIR := $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+
+NAME := bw_example_fxpp_bitcrush
+SOURCES = ${SOURCES_COMMON} ${ROOT_DIR}/../src/bw_example_fxpp_bitcrush.cpp
+
+include ${ROOT_DIR}/../../common/vst3/vst3.mk

examples/fxpp_bitcrush/vst3/config_vst3.h

@@ -0,0 +1,36 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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 authors: Stefano D'Angelo, Paolo Marrone
+ */
+
+#ifndef _VST3_CONFIG_H
+#define _VST3_CONFIG_H
+
+#define PLUGIN_SUBCATEGORY	"Fx"
+
+#define PLUGIN_GUID_1		0x4ccc317b
+#define PLUGIN_GUID_2		0xcbfd4dc0
+#define PLUGIN_GUID_3		0xb2c0e24d
+#define PLUGIN_GUID_4		0x00ef876d
+
+#define CTRL_GUID_1		0xf4fa2b0d
+#define CTRL_GUID_2		0x358f4709
+#define CTRL_GUID_3		0x855f940f
+#define CTRL_GUID_4		0x76cec704
+
+#endif

examples/fxpp_clip/daisy-seed/Makefile

@@ -0,0 +1,7 @@
+ROOT_DIR := $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+
+TARGET = bw_example_fxpp_clip
+
+CPP_SOURCES_EXTRA = ${ROOT_DIR}/../src/bw_example_fxpp_clip.cpp
+
+include ${ROOT_DIR}/../../common/daisy-seed/daisy-seed.mk

examples/fxpp_clip/daisy-seed/config_daisy_seed.h

@@ -0,0 +1,36 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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 authors: Stefano D'Angelo
+ */
+
+#ifndef _CONFIG_DAISY_SEED_H
+#define _CONFIG_DAISY_SEED_H
+
+struct config_pin {
+	int	param_index;
+	int	pin;
+};
+
+#define NUM_PINS 	2
+
+static struct config_pin config_pins[NUM_PINS] = {
+	{ 0, 15 },
+	{ 1, 16 }
+};
+
+#endif

examples/fxpp_clip/src/bw_example_fxpp_clip.cpp

@@ -0,0 +1,62 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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 "bw_example_fxpp_clip.h"
+
+void bw_example_fxpp_clip_init(bw_example_fxpp_clip *instance) {
+	(void)instance;
+}
+
+void bw_example_fxpp_clip_set_sample_rate(bw_example_fxpp_clip *instance, float sample_rate) {
+	instance->clip.setSampleRate(2.f * sample_rate);
+}
+
+void bw_example_fxpp_clip_reset(bw_example_fxpp_clip *instance) {
+	instance->clip.reset();
+	instance->srcUp.reset();
+	instance->srcDown.reset();
+}
+
+void bw_example_fxpp_clip_process(bw_example_fxpp_clip *instance, const float** x, float** y, int n_samples) {
+	int i = 0;
+	while (i < n_samples) {
+		int n = bw_mini32(n_samples - i, BUF_SIZE >> 1);
+		instance->srcUp.process({x[0] + i}, {instance->buf}, n);
+		instance->clip.process({instance->buf}, {instance->buf}, n << 1);
+		instance->srcDown.process({instance->buf}, {y[0] + i}, n << 1);
+		i += n;
+	}
+}
+
+void bw_example_fxpp_clip_set_parameter(bw_example_fxpp_clip *instance, int index, float value) {
+	instance->params[index] = value;
+	switch (index) {
+	case p_bias:
+		instance->clip.setBias(5.f * value - 2.5f);
+		break;
+	case p_gain:
+		instance->clip.setGain(0.1f + (10.f - 0.1f) * value * value * value);
+		break;
+	}
+}
+
+float bw_example_fxpp_clip_get_parameter(bw_example_fxpp_clip *instance, int index) {
+	return instance->params[index];
+}

examples/fxpp_clip/src/bw_example_fxpp_clip.h

@@ -0,0 +1,64 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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
+ */
+
+#ifndef _BW_EXAMPLE_FXPP_CLIP_H
+#define _BW_EXAMPLE_FXPP_CLIP_H
+
+#include <bwpp_clip.h>
+#include <bwpp_src_int.h>
+
+using namespace Brickworks;
+
+extern "C" {
+
+enum {
+	p_bias,
+	p_gain,
+	p_n
+};
+
+#define BUF_SIZE	32
+
+struct _bw_example_fxpp_clip {
+	// Sub-components
+	Clip<1>		clip;
+	SRCInt<1>	srcUp;
+	SRCInt<1>	srcDown;
+
+	// Parameters
+	float	params[p_n];
+
+	// Buffers
+	float	buf[BUF_SIZE];
+
+	_bw_example_fxpp_clip() : srcUp(2), srcDown(-2) {}
+};
+typedef struct _bw_example_fxpp_clip bw_example_fxpp_clip;
+
+void bw_example_fxpp_clip_init(bw_example_fxpp_clip *instance);
+void bw_example_fxpp_clip_set_sample_rate(bw_example_fxpp_clip *instance, float sample_rate);
+void bw_example_fxpp_clip_reset(bw_example_fxpp_clip *instance);
+void bw_example_fxpp_clip_process(bw_example_fxpp_clip *instance, const float** x, float** y, int n_samples);
+void bw_example_fxpp_clip_set_parameter(bw_example_fxpp_clip *instance, int index, float value);
+float bw_example_fxpp_clip_get_parameter(bw_example_fxpp_clip *instance, int index);
+
+}
+
+#endif

examples/fxpp_clip/src/config.h

@@ -0,0 +1,88 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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 authors: Stefano D'Angelo
+ */
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+
+// Definitions
+
+#define IO_MONO			1
+#define IO_STEREO		(1<<1)
+
+struct config_io_bus {
+	const char	*name;
+	char		 out;
+	char		 aux;
+	char		 cv;
+	char		 configs;
+};
+
+struct config_parameter {
+	const char	*name;
+	const char	*shortName;
+	const char	*units;
+	char		 out;
+	char		 bypass;
+	int		 steps;
+	float		 defaultValueUnmapped;
+};
+
+// Data
+
+#define COMPANY_NAME		"Orastron"
+#define COMPANY_WEBSITE		"https://www.orastron.com/"
+#define COMPANY_MAILTO		"mailto:info@orastron.com"
+
+#define PLUGIN_NAME		"bw_example_fxpp_clip"
+#define PLUGIN_VERSION		"0.5.0"
+
+#define NUM_BUSES_IN		1
+#define NUM_BUSES_OUT		1
+#define NUM_CHANNELS_IN		1
+#define NUM_CHANNELS_OUT	1
+
+static struct config_io_bus config_buses_in[NUM_BUSES_IN] = {
+	{ "Audio in", 0, 0, 0, IO_MONO }
+};
+
+static struct config_io_bus config_buses_out[NUM_BUSES_OUT] = {
+	{ "Audio out", 1, 0, 0, IO_MONO }
+};
+
+#define NUM_PARAMETERS		2
+
+static struct config_parameter config_parameters[NUM_PARAMETERS] = {
+	{ "Bias", "Bias", "", 0, 0, 0, 0.5f },
+	{ "Gain", "Gain", "", 0, 0, 0, 0.4641588833612779f }
+};
+
+// Internal API
+
+#include "bw_example_fxpp_clip.h"
+
+#define P_TYPE				bw_example_fxpp_clip
+#define P_INIT				bw_example_fxpp_clip_init
+#define P_SET_SAMPLE_RATE		bw_example_fxpp_clip_set_sample_rate
+#define P_RESET				bw_example_fxpp_clip_reset
+#define P_PROCESS			bw_example_fxpp_clip_process
+#define P_SET_PARAMETER			bw_example_fxpp_clip_set_parameter
+#define P_GET_PARAMETER			bw_example_fxpp_clip_get_parameter
+
+#endif

examples/fxpp_clip/vst3/Makefile

@@ -0,0 +1,6 @@
+ROOT_DIR := $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+
+NAME := bw_example_fxpp_clip
+SOURCES = ${SOURCES_COMMON} ${ROOT_DIR}/../src/bw_example_fxpp_clip.cpp
+
+include ${ROOT_DIR}/../../common/vst3/vst3.mk

examples/fxpp_clip/vst3/config_vst3.h

@@ -0,0 +1,36 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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 authors: Stefano D'Angelo, Paolo Marrone
+ */
+
+#ifndef _VST3_CONFIG_H
+#define _VST3_CONFIG_H
+
+#define PLUGIN_SUBCATEGORY	"Fx|Distortion"
+
+#define PLUGIN_GUID_1		0xa94e154c
+#define PLUGIN_GUID_2		0xca1d4e29
+#define PLUGIN_GUID_3		0xa3bb40be
+#define PLUGIN_GUID_4		0x0814b9ce
+
+#define CTRL_GUID_1		0x81fcfee9
+#define CTRL_GUID_2		0xb69e412d
+#define CTRL_GUID_3		0x892acde6
+#define CTRL_GUID_4		0x5c46094c
+
+#endif

include/bwpp_bd_reduce.h

@@ -0,0 +1,69 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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
+ */
+
+#ifndef BWPP_BD_REDUCE_H
+#define BWPP_BD_REDUCE_H
+
+#include <bw_bd_reduce.h>
+#include <array>
+
+namespace Brickworks {
+	template<BW_SIZE_T N_CHANNELS>
+	class BDReduce {
+	public:
+		BDReduce();
+		
+		void reset();
+		void process(
+			std::array<const float *, N_CHANNELS> x,
+			std::array<float *, N_CHANNELS> y,
+			int nSamples);
+
+		void setBitDepth(char value);
+
+	private:
+		bw_bd_reduce_coeffs	 coeffs;
+	};
+	
+	template<BW_SIZE_T N_CHANNELS>
+	BDReduce<N_CHANNELS>::BDReduce() {
+		bw_bd_reduce_init(&coeffs);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void BDReduce<N_CHANNELS>::reset() {
+		bw_bd_reduce_reset_coeffs(&coeffs);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void BDReduce<N_CHANNELS>::process(
+			std::array<const float *, N_CHANNELS> x,
+			std::array<float *, N_CHANNELS> y,
+			int nSamples) {
+		bw_bd_reduce_process_multi(&coeffs, x.data(), y.data(), N_CHANNELS, nSamples);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void BDReduce<N_CHANNELS>::setBitDepth(char value) {
+		bw_bd_reduce_set_bit_depth(&coeffs, value);
+	}
+}
+
+#endif

include/bwpp_clip.h

@@ -0,0 +1,93 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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
+ */
+
+#ifndef BWPP_CLIP_H
+#define BWPP_CLIP_H
+
+#include <bw_clip.h>
+#include <array>
+
+namespace Brickworks {
+	template<BW_SIZE_T N_CHANNELS>
+	class Clip {
+	public:
+		Clip();
+
+		void setSampleRate(float sampleRate);
+		void reset();
+		void process(
+			std::array<const float *, N_CHANNELS> x,
+			std::array<float *, N_CHANNELS> y,
+			int nSamples);
+
+		void setBias(float value);
+		void setGain(float value);
+		void setGainCompensation(bool value);
+
+	private:
+		bw_clip_coeffs	 coeffs;
+		bw_clip_state	 states[N_CHANNELS];
+		bw_clip_state	*statesP[N_CHANNELS];
+	};
+	
+	template<BW_SIZE_T N_CHANNELS>
+	Clip<N_CHANNELS>::Clip() {
+		bw_clip_init(&coeffs);
+		for (unsigned int i = 0; i < N_CHANNELS; i++)
+			statesP[i] = states + i;
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void Clip<N_CHANNELS>::setSampleRate(float sampleRate) {
+		bw_clip_set_sample_rate(&coeffs, sampleRate);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void Clip<N_CHANNELS>::reset() {
+		bw_clip_reset_coeffs(&coeffs);
+		for (unsigned int i = 0; i < N_CHANNELS; i++)
+			bw_clip_reset_state(&coeffs, states + i);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void Clip<N_CHANNELS>::process(
+			std::array<const float *, N_CHANNELS> x,
+			std::array<float *, N_CHANNELS> y,
+			int nSamples) {
+		bw_clip_process_multi(&coeffs, statesP, x.data(), y.data(), N_CHANNELS, nSamples);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void Clip<N_CHANNELS>::setBias(float value) {
+		bw_clip_set_bias(&coeffs, value);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void Clip<N_CHANNELS>::setGain(float value) {
+		bw_clip_set_gain(&coeffs, value);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void Clip<N_CHANNELS>::setGainCompensation(bool value) {
+		bw_clip_set_gain_compensation(&coeffs, value);
+	}
+}
+
+#endif

include/bwpp_sr_reduce.h

@@ -0,0 +1,72 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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
+ */
+
+#ifndef BWPP_SR_REDUCE_H
+#define BWPP_SR_REDUCE_H
+
+#include <bw_sr_reduce.h>
+#include <array>
+
+namespace Brickworks {
+	template<BW_SIZE_T N_CHANNELS>
+	class SRReduce {
+	public:
+		SRReduce();
+		
+		void reset();
+		void process(
+			std::array<const float *, N_CHANNELS> x,
+			std::array<float *, N_CHANNELS> y,
+			int nSamples);
+
+		void setRatio(float value);
+
+	private:
+		bw_sr_reduce_coeffs	 coeffs;
+		bw_sr_reduce_state	 states[N_CHANNELS];
+	};
+	
+	template<BW_SIZE_T N_CHANNELS>
+	SRReduce<N_CHANNELS>::SRReduce() {
+		bw_sr_reduce_init(&coeffs);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void SRReduce<N_CHANNELS>::reset() {
+		for (unsigned int i = 0; i < N_CHANNELS; i++)
+			bw_sr_reduce_reset_state(&coeffs, states + i);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void SRReduce<N_CHANNELS>::process(
+			std::array<const float *, N_CHANNELS> x,
+			std::array<float *, N_CHANNELS> y,
+			int nSamples) {
+		for (unsigned int i = 0; i < N_CHANNELS; i++)
+			bw_sr_reduce_process(&coeffs, states + i, x.data()[i], y.data()[i], nSamples);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void SRReduce<N_CHANNELS>::setRatio(float value) {
+		bw_sr_reduce_set_ratio(&coeffs, value);
+	}
+}
+
+#endif

include/bwpp_src_int.h

@@ -0,0 +1,65 @@
+/*
+ * Brickworks
+ *
+ * Copyright (C) 2023 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
+ */
+
+#ifndef BWPP_SRC_INT_H
+#define BWPP_SRC_INT_H
+
+#include <bw_src_int.h>
+#include <array>
+
+namespace Brickworks {
+	template<BW_SIZE_T N_CHANNELS>
+	class SRCInt {
+	public:
+		SRCInt(int ratio);
+		
+		void reset(float x0 = 0.f);
+		void process(
+			std::array<const float *, N_CHANNELS> x,
+			std::array<float *, N_CHANNELS> y,
+			int nInSamples);
+
+	private:
+		bw_src_int_coeffs	 coeffs;
+		bw_src_int_state	 states[N_CHANNELS];
+	};
+	
+	template<BW_SIZE_T N_CHANNELS>
+	SRCInt<N_CHANNELS>::SRCInt(int ratio) {
+		bw_src_int_init(&coeffs, ratio);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void SRCInt<N_CHANNELS>::reset(float x0) {
+		for (unsigned int i = 0; i < N_CHANNELS; i++)
+			bw_src_int_reset_state(&coeffs, states + i, x0);
+	}
+	
+	template<BW_SIZE_T N_CHANNELS>
+	void SRCInt<N_CHANNELS>::process(
+			std::array<const float *, N_CHANNELS> x,
+			std::array<float *, N_CHANNELS> y,
+			int nInSamples) {
+		for (unsigned int i = 0; i < N_CHANNELS; i++)
+			bw_src_int_process(&coeffs, states + i, x.data()[i], y.data()[i], nInSamples);
+	}
+}
+
+#endif