example hvcc2dpf

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "dpf"]
+	path = dpf
+	url = https://github.com/DISTRHO/DPF

distrho/build.json

@@ -0,0 +1 @@
+{"linux": {"x64": {"args": [["-j"]], "projectDir": ["linux"], "binaryDir": ["build", "linux", "x64", "release"]}}}

distrho/source/DistrhoPluginInfo.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#define DISTRHO_PLUGIN_BRAND           "Wasted Audio"
+#define DISTRHO_PLUGIN_NAME            "arp_delay_env"
+#define DISTRHO_PLUGIN_URI             "http://wasted.audio/lv2/plugin/arp_delay_env"
+#define DISTRHO_PLUGIN_HOMEPAGE        "https://github.com/wasted.audio/arp_delay_env"
+#define DISTRHO_PLUGIN_UNIQUE_ID       'p','l','u','g'
+#define DISTRHO_PLUGIN_VERSION         0,0,0
+#define DISTRHO_PLUGIN_LABEL           "my plugin"
+#define DISTRHO_PLUGIN_LICENSE         "http://spdx.org/licenses/BSL-1.0"
+#define DISTRHO_PLUGIN_MAKER           "Wasted Audio"
+#define DISTRHO_PLUGIN_DESCRIPTION     "a plugin that does stuff"
+#define DISTRHO_PLUGIN_NUM_INPUTS      0
+#define DISTRHO_PLUGIN_NUM_OUTPUTS     2
+#define DISTRHO_PLUGIN_IS_SYNTH        1
+#define DISTRHO_PLUGIN_HAS_UI          0
+#define DISTRHO_PLUGIN_HAS_EMBED_UI    0
+#define DISTRHO_PLUGIN_HAS_EXTERNAL_UI 0
+#define DISTRHO_PLUGIN_IS_RT_SAFE      1
+#define DISTRHO_PLUGIN_WANT_PROGRAMS   0
+#define DISTRHO_PLUGIN_WANT_STATE      0
+#define DISTRHO_PLUGIN_WANT_FULL_STATE 0
+#define DISTRHO_PLUGIN_NUM_PROGRAMS    0
+#define DISTRHO_PLUGIN_WANT_MIDI_INPUT 1
+
+// for level monitoring
+#define DISTRHO_PLUGIN_WANT_DIRECT_ACCESS 1

distrho/source/HeavyContext.cpp

@@ -0,0 +1,264 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HeavyContext.hpp"
+#include "HvTable.h"
+
+void defaultSendHook(HeavyContextInterface *context,
+    const char *sendName, hv_uint32_t sendHash, const HvMessage *msg) {
+  HeavyContext *thisContext = reinterpret_cast<HeavyContext *>(context);
+  const hv_uint32_t numBytes = sizeof(ReceiverMessagePair) + msg_getSize(msg) - sizeof(HvMessage);
+  ReceiverMessagePair *p = reinterpret_cast<ReceiverMessagePair *>(hLp_getWriteBuffer(&thisContext->outQueue, numBytes));
+  if (p != nullptr) {
+    p->receiverHash = sendHash;
+    msg_copyToBuffer(msg, (char *) &p->msg, msg_getSize(msg));
+    hLp_produce(&thisContext->outQueue, numBytes);
+  } else {
+    hv_assert(false &&
+        "::defaultSendHook - The out message queue is full and cannot accept more messages until they "
+        "have been processed. Try increasing the outQueueKb size in the new_with_options() constructor.");
+  }
+}
+
+HeavyContext::HeavyContext(double sampleRate, int poolKb, int inQueueKb, int outQueueKb) :
+    sampleRate(sampleRate) {
+
+  hv_assert(sampleRate > 0.0); // sample rate must be positive
+  hv_assert(poolKb > 0);
+  hv_assert(inQueueKb > 0);
+  hv_assert(outQueueKb >= 0);
+
+  blockStartTimestamp = 0;
+  printHook = nullptr;
+  userData = nullptr;
+
+  // if outQueueKb is positive, then the outQueue is allocated and the default sendhook is set.
+  // Otherwise outQueue and the sendhook are set to NULL.
+  sendHook = (outQueueKb > 0) ? &defaultSendHook : nullptr;
+
+  HV_SPINLOCK_RELEASE(inQueueLock);
+  HV_SPINLOCK_RELEASE(outQueueLock);
+
+  numBytes = sizeof(HeavyContext);
+
+  numBytes += mq_initWithPoolSize(&mq, poolKb);
+  numBytes += hLp_init(&inQueue, inQueueKb * 1024);
+  numBytes += hLp_init(&outQueue, outQueueKb * 1024); // outQueueKb value of 0 sets everything to NULL
+}
+
+HeavyContext::~HeavyContext() {
+  mq_free(&mq);
+  hLp_free(&inQueue);
+  hLp_free(&outQueue);
+}
+
+bool HeavyContext::sendBangToReceiver(hv_uint32_t receiverHash) {
+  HvMessage *m = HV_MESSAGE_ON_STACK(1);
+  msg_initWithBang(m, 0);
+  bool success = sendMessageToReceiver(receiverHash, 0.0, m);
+  return success;
+}
+
+bool HeavyContext::sendFloatToReceiver(hv_uint32_t receiverHash, float f) {
+  HvMessage *m = HV_MESSAGE_ON_STACK(1);
+  msg_initWithFloat(m, 0, f);
+  bool success = sendMessageToReceiver(receiverHash, 0.0, m);
+  return success;
+}
+
+bool HeavyContext::sendSymbolToReceiver(hv_uint32_t receiverHash, const char *s) {
+  hv_assert(s != nullptr);
+  HvMessage *m = HV_MESSAGE_ON_STACK(1);
+  msg_initWithSymbol(m, 0, (char *) s);
+  bool success = sendMessageToReceiver(receiverHash, 0.0, m);
+  return success;
+}
+
+bool HeavyContext::sendMessageToReceiverV(hv_uint32_t receiverHash, double delayMs, const char *format, ...) {
+  hv_assert(delayMs >= 0.0);
+  hv_assert(format != nullptr);
+
+  va_list ap;
+  va_start(ap, format);
+  const int numElem = (int) hv_strlen(format);
+  HvMessage *m = HV_MESSAGE_ON_STACK(numElem);
+  msg_init(m, numElem, blockStartTimestamp + (hv_uint32_t) (hv_max_d(0.0, delayMs)*getSampleRate()/1000.0));
+  for (int i = 0; i < numElem; i++) {
+    switch (format[i]) {
+      case 'b': msg_setBang(m, i); break;
+      case 'f': msg_setFloat(m, i, (float) va_arg(ap, double)); break;
+      case 'h': msg_setHash(m, i, (int) va_arg(ap, int)); break;
+      case 's': msg_setSymbol(m, i, (char *) va_arg(ap, char *)); break;
+      default: break;
+    }
+  }
+  va_end(ap);
+
+  bool success = sendMessageToReceiver(receiverHash, delayMs, m);
+  return success;
+}
+
+bool HeavyContext::sendMessageToReceiver(hv_uint32_t receiverHash, double delayMs, HvMessage *m) {
+  hv_assert(delayMs >= 0.0);
+  hv_assert(m != nullptr);
+
+  const hv_uint32_t timestamp = blockStartTimestamp +
+      (hv_uint32_t) (hv_max_d(0.0, delayMs)*(getSampleRate()/1000.0));
+
+  ReceiverMessagePair *p = nullptr;
+  HV_SPINLOCK_ACQUIRE(inQueueLock);
+  const hv_uint32_t numBytes = sizeof(ReceiverMessagePair) + msg_getSize(m) - sizeof(HvMessage);
+  p = (ReceiverMessagePair *) hLp_getWriteBuffer(&inQueue, numBytes);
+  if (p != nullptr) {
+    p->receiverHash = receiverHash;
+    msg_copyToBuffer(m, (char *) &p->msg, msg_getSize(m));
+    msg_setTimestamp(&p->msg, timestamp);
+    hLp_produce(&inQueue, numBytes);
+  } else {
+    hv_assert(false &&
+        "::sendMessageToReceiver - The input message queue is full and cannot accept more messages until they "
+        "have been processed. Try increasing the inQueueKb size in the new_with_options() constructor.");
+  }
+  HV_SPINLOCK_RELEASE(inQueueLock);
+  return (p != nullptr);
+}
+
+bool HeavyContext::cancelMessage(HvMessage *m, void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  return mq_removeMessage(&mq, m, sendMessage);
+}
+
+HvMessage *HeavyContext::scheduleMessageForObject(const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *),
+    int letIndex) {
+  HvMessage *n = mq_addMessageByTimestamp(&mq, m, letIndex, sendMessage);
+  return n;
+}
+
+float *HeavyContext::getBufferForTable(hv_uint32_t tableHash) {
+  HvTable *t = getTableForHash(tableHash);
+  if (t != nullptr) {
+    return hTable_getBuffer(t);
+  } else return nullptr;
+}
+
+int HeavyContext::getLengthForTable(hv_uint32_t tableHash) {
+  HvTable *t = getTableForHash(tableHash);
+  if (t != nullptr) {
+    return hTable_getLength(t);
+  } else return 0;
+}
+
+bool HeavyContext::setLengthForTable(hv_uint32_t tableHash, hv_uint32_t newSampleLength) {
+  HvTable *t = getTableForHash(tableHash);
+  if (t != nullptr) {
+    hTable_resize(t, newSampleLength);
+    return true;
+  } else return false;
+}
+
+void HeavyContext::lockAcquire() {
+  HV_SPINLOCK_ACQUIRE(inQueueLock);
+}
+
+bool HeavyContext::lockTry() {
+  HV_SPINLOCK_TRY(inQueueLock);
+}
+
+void HeavyContext::lockRelease() {
+  HV_SPINLOCK_RELEASE(inQueueLock);
+}
+
+void HeavyContext::setInputMessageQueueSize(int inQueueKb) {
+  hv_assert(inQueueKb > 0);
+  hLp_free(&inQueue);
+  hLp_init(&inQueue, inQueueKb*1024);
+}
+
+void HeavyContext::setOutputMessageQueueSize(int outQueueKb) {
+  hv_assert(outQueueKb > 0);
+  hLp_free(&outQueue);
+  hLp_init(&outQueue, outQueueKb*1024);
+}
+
+bool HeavyContext::getNextSentMessage(hv_uint32_t *destinationHash, HvMessage *outMsg, hv_size_t msgLengthBytes) {
+  *destinationHash = 0;
+  ReceiverMessagePair *p = nullptr;
+  hv_assert((sendHook == &defaultSendHook) &&
+      "::getNextSentMessage - this function won't do anything if the msg outQueue "
+      "size is 0, or you've overriden the default sendhook.");
+  if (sendHook == &defaultSendHook) {
+    HV_SPINLOCK_ACQUIRE(outQueueLock);
+    if (hLp_hasData(&outQueue)) {
+      hv_uint32_t numBytes = 0;
+      p = reinterpret_cast<ReceiverMessagePair *>(hLp_getReadBuffer(&outQueue, &numBytes));
+      hv_assert((p != nullptr) && "::getNextSentMessage - something bad happened.");
+      hv_assert(numBytes >= sizeof(ReceiverMessagePair));
+      hv_assert((numBytes <= msgLengthBytes) &&
+          "::getNextSentMessage - the sent message is bigger than the message "
+          "passed to handle it.");
+      *destinationHash = p->receiverHash;
+      hv_memcpy(outMsg, &p->msg, numBytes);
+      hLp_consume(&outQueue);
+    }
+    HV_SPINLOCK_RELEASE(outQueueLock);
+  }
+  return (p != nullptr);
+}
+
+hv_uint32_t HeavyContext::getHashForString(const char *str) {
+  return hv_string_to_hash(str);
+}
+
+HvTable *_hv_table_get(HeavyContextInterface *c, hv_uint32_t tableHash) {
+  hv_assert(c != nullptr);
+  return reinterpret_cast<HeavyContext *>(c)->getTableForHash(tableHash);
+}
+
+void _hv_scheduleMessageForReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash, HvMessage *m) {
+  hv_assert(c != nullptr);
+  reinterpret_cast<HeavyContext *>(c)->scheduleMessageForReceiver(receiverHash, m);
+}
+
+HvMessage *_hv_scheduleMessageForObject(HeavyContextInterface *c, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *),
+    int letIndex) {
+  hv_assert(c != nullptr);
+  HvMessage *n = reinterpret_cast<HeavyContext *>(c)->scheduleMessageForObject(
+      m, sendMessage, letIndex);
+  return n;
+}
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+HvTable *hv_table_get(HeavyContextInterface *c, hv_uint32_t tableHash) {
+  return _hv_table_get(c, tableHash);
+}
+
+void hv_scheduleMessageForReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash, HvMessage *m) {
+  _hv_scheduleMessageForReceiver(c, receiverHash, m);
+}
+
+HvMessage *hv_scheduleMessageForObject(HeavyContextInterface *c, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *),
+    int letIndex) {
+  return _hv_scheduleMessageForObject(c, m, sendMessage, letIndex);
+}
+
+#ifdef __cplusplus
+}
+#endif

distrho/source/HeavyContext.hpp

@@ -0,0 +1,107 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTEXT_H_
+#define _HEAVY_CONTEXT_H_
+
+#include "HeavyContextInterface.hpp"
+#include "HvLightPipe.h"
+#include "HvMessageQueue.h"
+#include "HvMath.h"
+
+struct HvTable;
+
+class HeavyContext : public HeavyContextInterface {
+
+ public:
+  HeavyContext(double sampleRate, int poolKb=10, int inQueueKb=2, int outQueueKb=0);
+  virtual ~HeavyContext();
+
+  int getSize() override { return (int) numBytes; }
+
+  double getSampleRate() override { return sampleRate; }
+
+  hv_uint32_t getCurrentSample() override { return blockStartTimestamp; }
+  float samplesToMilliseconds(hv_uint32_t numSamples) override { return (float) (1000.0*numSamples/sampleRate); }
+  hv_uint32_t millisecondsToSamples(float ms) override { return (hv_uint32_t) (hv_max_f(0.0f,ms)*sampleRate/1000.0); }
+
+  void setUserData(void *x) override { userData = x; }
+  void *getUserData() override { return userData; }
+
+  // hook management
+  void setSendHook(HvSendHook_t *f) override { sendHook = f; }
+  HvSendHook_t *getSendHook() override { return sendHook; }
+
+  void setPrintHook(HvPrintHook_t *f) override { printHook = f; }
+  HvPrintHook_t *getPrintHook() override { return printHook; }
+
+  // message scheduling
+  bool sendMessageToReceiver(hv_uint32_t receiverHash, double delayMs, HvMessage *m) override;
+  bool sendMessageToReceiverV(hv_uint32_t receiverHash, double delayMs, const char *fmt, ...) override;
+  bool sendFloatToReceiver(hv_uint32_t receiverHash, float f) override;
+  bool sendBangToReceiver(hv_uint32_t receiverHash) override;
+  bool sendSymbolToReceiver(hv_uint32_t receiverHash, const char *symbol) override;
+  bool cancelMessage(HvMessage *m, void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) override;
+
+  // table manipulation
+  float *getBufferForTable(hv_uint32_t tableHash) override;
+  int getLengthForTable(hv_uint32_t tableHash) override;
+  bool setLengthForTable(hv_uint32_t tableHash, hv_uint32_t newSampleLength) override;
+
+  // lock control
+  void lockAcquire() override;
+  bool lockTry() override;
+  void lockRelease() override;
+
+  // message queue management
+  void setInputMessageQueueSize(int inQueueKb) override;
+  void setOutputMessageQueueSize(int outQueueKb) override;
+  bool getNextSentMessage(hv_uint32_t *destinationHash, HvMessage *outMsg, hv_size_t msgLength) override;
+
+  // utility functions
+  static hv_uint32_t getHashForString(const char *str);
+
+ protected:
+  virtual HvTable *getTableForHash(hv_uint32_t tableHash) = 0;
+  friend HvTable *_hv_table_get(HeavyContextInterface *, hv_uint32_t);
+
+  virtual void scheduleMessageForReceiver(hv_uint32_t receiverHash, HvMessage *m) = 0;
+  friend void _hv_scheduleMessageForReceiver(HeavyContextInterface *, hv_uint32_t, HvMessage *);
+
+  HvMessage *scheduleMessageForObject(const HvMessage *,
+      void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *),
+      int);
+  friend HvMessage *_hv_scheduleMessageForObject(HeavyContextInterface *, const HvMessage *,
+      void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *),
+      int);
+
+  friend void defaultSendHook(HeavyContextInterface *, const char *, hv_uint32_t, const HvMessage *);
+
+  // object state
+  double sampleRate;
+  hv_uint32_t blockStartTimestamp;
+  hv_size_t numBytes;
+  HvMessageQueue mq;
+  HvSendHook_t *sendHook;
+  HvPrintHook_t *printHook;
+  void *userData;
+  HvLightPipe inQueue;
+  HvLightPipe outQueue;
+  hv_atomic_bool inQueueLock;
+  hv_atomic_bool outQueueLock;
+};
+
+#endif // _HEAVY_CONTEXT_H_

distrho/source/HeavyContextInterface.hpp

@@ -0,0 +1,291 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTEXT_INTERFACE_H_
+#define _HEAVY_CONTEXT_INTERFACE_H_
+
+#include "HvUtils.h"
+
+#ifndef _HEAVY_DECLARATIONS_
+#define _HEAVY_DECLARATIONS_
+
+class HeavyContextInterface;
+struct HvMessage;
+
+typedef enum {
+  HV_PARAM_TYPE_PARAMETER_IN,
+  HV_PARAM_TYPE_PARAMETER_OUT,
+  HV_PARAM_TYPE_EVENT_IN,
+  HV_PARAM_TYPE_EVENT_OUT
+} HvParameterType;
+
+typedef struct HvParameterInfo {
+  const char *name;     // the human readable parameter name
+  hv_uint32_t hash;     // an integer identified used by heavy for this parameter
+  HvParameterType type; // type of this parameter
+  float minVal;         // the minimum value of this parameter
+  float maxVal;         // the maximum value of this parameter
+  float defaultVal;     // the default value of this parameter
+} HvParameterInfo;
+
+typedef void (HvSendHook_t) (HeavyContextInterface *context, const char *sendName, hv_uint32_t sendHash, const HvMessage *msg);
+typedef void (HvPrintHook_t) (HeavyContextInterface *context, const char *printName, const char *str, const HvMessage *msg);
+
+#endif // _HEAVY_DECLARATIONS_
+
+
+
+class HeavyContextInterface {
+
+ public:
+  HeavyContextInterface() {}
+  virtual ~HeavyContextInterface() {};
+
+  /** Returns the read-only user-assigned name of this patch. */
+  virtual const char *getName() = 0;
+
+  /** Returns the number of input channels with which this context has been configured. */
+  virtual int getNumInputChannels() = 0;
+
+  /** Returns the number of output channels with which this context has been configured. */
+  virtual int getNumOutputChannels() = 0;
+
+  /**
+   * Returns the total size in bytes of the context.
+   * This value may change if tables are resized.
+   */
+  virtual int getSize() = 0;
+
+  /** Returns the sample rate with which this context has been configured. */
+  virtual double getSampleRate() = 0;
+
+  /** Returns the current patch time in samples. This value is always exact. */
+  virtual hv_uint32_t getCurrentSample() = 0;
+  virtual float samplesToMilliseconds(hv_uint32_t numSamples) = 0;
+
+  /** Converts milliseconds to samples. Input is limited to non-negative range. */
+  virtual hv_uint32_t millisecondsToSamples(float ms) = 0;
+
+  /** Sets a user-definable value. This value is never manipulated by Heavy. */
+  virtual void setUserData(void *x) = 0;
+
+  /** Returns the user-defined data. */
+  virtual void *getUserData() = 0;
+
+  /**
+   * Set the send hook. The function is called whenever a message is sent to any send object.
+   * Messages returned by this function should NEVER be freed. If the message must persist, call
+   * hv_msg_copy() first.
+   */
+  virtual void setSendHook(HvSendHook_t *f) = 0;
+
+  /** Returns the send hook, or NULL if unset. */
+  virtual HvSendHook_t *getSendHook() = 0;
+
+  /** Set the print hook. The function is called whenever a message is sent to a print object. */
+  virtual void setPrintHook(HvPrintHook_t *f) = 0;
+
+  /** Returns the print hook, or NULL if unset. */
+  virtual HvPrintHook_t *getPrintHook() = 0;
+
+  /**
+   * Processes one block of samples for a patch instance. The buffer format is an array of float channel arrays.
+   * If the context has not input or output channels, the respective argument may be NULL.
+   * The number of samples to to tbe processed should be a multiple of 1, 4, or 8, depending on if
+   * no, SSE or NEON, or AVX optimisation is being used, respectively.
+   * e.g. [[LLLL][RRRR]]
+   *
+   * @return  The number of samples processed.
+   *
+   * This function is NOT thread-safe. It is assumed that only the audio thread will execute this function.
+   */
+  virtual int process(float **inputBuffers, float **outputBuffer, int n) = 0;
+
+  /**
+   * Processes one block of samples for a patch instance. The buffer format is an uninterleaved float array of channels.
+   * If the context has not input or output channels, the respective argument may be NULL.
+   * The number of samples to to tbe processed should be a multiple of 1, 4, or 8, depending on if
+   * no, SSE or NEON, or AVX optimisation is being used, respectively.
+   * e.g. [LLLLRRRR]
+   *
+   * @return  The number of samples processed.
+   *
+   * This function is NOT thread-safe. It is assumed that only the audio thread will execute this function.
+   */
+  virtual int processInline(float *inputBuffers, float *outputBuffer, int n) = 0;
+
+  /**
+   * Processes one block of samples for a patch instance. The buffer format is an interleaved float array of channels.
+   * If the context has not input or output channels, the respective argument may be NULL.
+   * The number of samples to to tbe processed should be a multiple of 1, 4, or 8, depending on if
+   * no, SSE or NEON, or AVX optimisation is being used, respectively.
+   * e.g. [LRLRLRLR]
+   *
+   * @return  The number of samples processed.
+   *
+   * This function is NOT thread-safe. It is assumed that only the audio thread will execute this function.
+   */
+  virtual int processInlineInterleaved(float *inputBuffers, float *outputBuffer, int n) = 0;
+
+  /**
+   * Sends a formatted message to a receiver that can be scheduled for the future.
+   * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+   * This function is thread-safe.
+   *
+   * @return  True if the message was accepted. False if the message could not fit onto
+   *          the message queue to be processed this block.
+   */
+  virtual bool sendMessageToReceiver(hv_uint32_t receiverHash, double delayMs, HvMessage *m) = 0;
+
+  /**
+   * Sends a formatted message to a receiver that can be scheduled for the future.
+   * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+   * This function is thread-safe.
+   *
+   * @return  True if the message was accepted. False if the message could not fit onto
+   *          the message queue to be processed this block.
+   */
+  virtual bool sendMessageToReceiverV(hv_uint32_t receiverHash, double delayMs, const char *fmt, ...) = 0;
+
+  /**
+   * A convenience function to send a float to a receiver to be processed immediately.
+   * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+   * This function is thread-safe.
+   *
+   * @return  True if the message was accepted. False if the message could not fit onto
+   *          the message queue to be processed this block.
+   */
+  virtual bool sendFloatToReceiver(hv_uint32_t receiverHash, float f) = 0;
+
+  /**
+   * A convenience function to send a bang to a receiver to be processed immediately.
+   * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+   * This function is thread-safe.
+   *
+   * @return  True if the message was accepted. False if the message could not fit onto
+   *          the message queue to be processed this block.
+   */
+  virtual bool sendBangToReceiver(hv_uint32_t receiverHash) = 0;
+
+  /**
+   * A convenience function to send a symbol to a receiver to be processed immediately.
+   * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+   * This function is thread-safe.
+   *
+   * @return  True if the message was accepted. False if the message could not fit onto
+   *          the message queue to be processed this block.
+   */
+  virtual bool sendSymbolToReceiver(hv_uint32_t receiverHash, const char *symbol)  = 0;
+
+  /**
+   * Cancels a previously scheduled message.
+   *
+   * @param sendMessage  May be NULL.
+   */
+  virtual bool cancelMessage(HvMessage *m, void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)=nullptr) = 0;
+
+  /**
+   * Returns information about each parameter such as name, hash, and range.
+   * The total number of parameters is always returned.
+   *
+   * @param index  The parameter index.
+   * @param info  A pointer to a HvParameterInfo struct. May be null.
+   *
+   * @return  The total number of parameters.
+   */
+  virtual int getParameterInfo(int index, HvParameterInfo *info) = 0;
+
+  /** Returns a pointer to the raw buffer backing this table. DO NOT free it. */
+  virtual float *getBufferForTable(hv_uint32_t tableHash) = 0;
+
+  /** Returns the length of this table in samples. */
+  virtual int getLengthForTable(hv_uint32_t tableHash) = 0;
+
+  /**
+   * Resizes the table to the given length.
+   *
+   * Existing contents are copied to the new table. Remaining space is cleared
+   * if the table is longer than the original, truncated otherwise.
+   *
+   * @param tableHash  The table identifier.
+   * @param newSampleLength  The new length of the table, in samples.
+   *
+   * @return  False if the table could not be found. True otherwise.
+   */
+  virtual bool setLengthForTable(hv_uint32_t tableHash, hv_uint32_t newSampleLength) = 0;
+
+  /**
+   * Acquire the input message queue lock.
+   *
+   * This function will block until the message lock as been acquired.
+   * Typical applications will not require the use of this function.
+   */
+  virtual void lockAcquire() = 0;
+
+  /**
+   * Try to acquire the input message queue lock.
+   *
+   * If the lock has been acquired, hv_lock_release() must be called to release it.
+   * Typical applications will not require the use of this function.
+   *
+   * @return Returns true if the lock has been acquired, false otherwise.
+   */
+  virtual bool lockTry() = 0;
+
+  /**
+   * Release the input message queue lock.
+   *
+   * Typical applications will not require the use of this function.
+   */
+  virtual void lockRelease() = 0;
+
+  /**
+   * Set the size of the input message queue in kilobytes.
+   *
+   * The buffer is reset and all existing contents are lost on resize.
+   *
+   * @param inQueueKb  Must be positive i.e. at least one.
+   */
+  virtual void setInputMessageQueueSize(int inQueueKb) = 0;
+
+  /**
+   * Set the size of the output message queue in kilobytes.
+   *
+   * The buffer is reset and all existing contents are lost on resize.
+   * Only the default sendhook uses the outgoing message queue. If the default
+   * sendhook is not being used, then this function is not useful.
+   *
+   * @param outQueueKb  Must be postive i.e. at least one.
+   */
+  virtual void setOutputMessageQueueSize(int outQueueKb) = 0;
+
+  /**
+   * Get the next message in the outgoing queue, will also consume the message.
+   * Returns false if there are no messages.
+   *
+   * @param destinationHash  a hash of the name of the receiver the message was sent to.
+   * @param outMsg  message pointer that is filled by the next message contents.
+   * @param msgLengthBytes  max length of outMsg in bytes.
+   *
+   * @return  True if there is a message in the outgoing queue.
+  */
+  virtual bool getNextSentMessage(hv_uint32_t *destinationHash, HvMessage *outMsg, hv_size_t msgLengthBytes) = 0;
+
+  /** Returns a 32-bit hash of any string. Returns 0 if string is NULL. */
+  static hv_uint32_t getHashForString(const char *str);
+};
+
+#endif // _HEAVY_CONTEXT_INTERFACE_H_

distrho/source/HeavyDPF_arp_delay_env.cpp

@@ -0,0 +1,271 @@
+/**
+ * Copyright (c) 2021 Enzien Audio, Ltd.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions, and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the phrase "powered by heavy",
+ *    the heavy logo, and a hyperlink to https://enzienaudio.com, all in a visible
+ *    form.
+ * 
+ *   2.1 If the Application is distributed in a store system (for example,
+ *       the Apple "App Store" or "Google Play"), the phrase "powered by heavy"
+ *       shall be included in the app description or the copyright text as well as
+ *       the in the app itself. The heavy logo will shall be visible in the app
+ *       itself as well.
+ * 
+ * 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 HOLDER 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 "HeavyDPF_arp_delay_env.hpp"
+// #include "HvUtils.h"
+
+#include "Heavy_arp_delay_env.cpp"
+
+#include "HeavyContext.cpp"
+#include "HeavyContextInterface.hpp"
+#include "HvControlBinop.c"
+#include "HvControlCast.c"
+#include "HvControlDelay.c"
+#include "HvHeavy.cpp"
+#include "HvLightPipe.c"
+#include "HvMessage.c"
+#include "HvMessagePool.c"
+#include "HvMessageQueue.c"
+#include "HvSignalLine.c"
+#include "HvSignalPhasor.c"
+#include "HvSignalVar.c"
+#include "HvTable.c"
+#include "HvUtils.c"
+
+#include "HvControlSystem.c"
+#include "HvControlVar.c"
+#include "HvSignalDel1.c"
+#include "HvSignalRPole.c"
+#include "HvSignalTabread.c"
+#include "HvSignalTabwrite.c"
+#include "HvControlSlice.c"
+
+
+#define HV_LV2_NUM_PARAMETERS 4
+
+START_NAMESPACE_DISTRHO
+
+static float scaleParameterForIndex(uint32_t index, float value)
+{
+  switch (index) {
+    case 0: return (1.0f*value) + 0.0f; // Arp_Pitch
+    case 1: return (1.0f*value) + 0.0f; // Arp_Speed
+    case 2: return (1.0f*value) + 0.0f; // Delay_Repeats
+    case 3: return (1.0f*value) + 0.0f; // Delay_Time
+    default: return 0.0f;
+  }
+}
+
+HeavyDPF_arp_delay_env::HeavyDPF_arp_delay_env()
+ : Plugin(HV_LV2_NUM_PARAMETERS, 0, 0)
+{
+
+}
+
+HeavyDPF_arp_delay_env::~HeavyDPF_arp_delay_env() {
+  delete _context;
+}
+
+void HeavyDPF_arp_delay_env::initParameter(uint32_t index, Parameter& parameter)
+{
+  // initialise parameters with defaults
+  switch (index)
+  {
+      case paramArp_Pitch:
+        parameter.name = "Arp Pitch";
+        parameter.symbol = "arp_pitch";
+        _parameters[0] = 0.5f; // Arp_Pitch
+        break;
+      case paramArp_Speed:
+        parameter.name = "Arp Speed";
+        parameter.symbol = "arp_speed";
+        _parameters[1] = 0.5f; // Arp_Speed
+        break;
+      case paramDelay_Repeats:
+        parameter.name = "Delay Repeats";
+        parameter.symbol = "delay_repeats";
+        _parameters[2] = 0.5f; // Delay_Repeats
+        break;
+      case paramDelay_Time:
+        parameter.name = "Delay Time";
+        parameter.symbol = "delay_time";
+        _parameters[3] = 0.5f; // Delay_Time
+        break;
+  }
+  _context = nullptr;
+  // // sampleRateChanged(0.0f); // initialise sample rate
+  sampleRateChanged(44100.0f); // set sample rate to some default
+}
+
+// -------------------------------------------------------------------
+// Internal data
+
+float HeavyDPF_arp_delay_env::getParameterValue(uint32_t index) const
+{
+  return _parameters[index];
+}
+
+void HeavyDPF_arp_delay_env::setParameterValue(uint32_t index, float value)
+{
+  switch (index) {
+    case 0: {
+      _context->sendFloatToReceiver(
+          Heavy_arp_delay_env::Parameter::In::ARP_PITCH,
+          scaleParameterForIndex(index, value));
+          // value);
+      break;
+    }
+    case 1: {
+      _context->sendFloatToReceiver(
+          Heavy_arp_delay_env::Parameter::In::ARP_SPEED,
+          scaleParameterForIndex(index, value));
+          // value);
+      break;
+    }
+    case 2: {
+      _context->sendFloatToReceiver(
+          Heavy_arp_delay_env::Parameter::In::DELAY_REPEATS,
+          scaleParameterForIndex(index, value));
+          // value);
+      break;
+    }
+    case 3: {
+      _context->sendFloatToReceiver(
+          Heavy_arp_delay_env::Parameter::In::DELAY_TIME,
+          scaleParameterForIndex(index, value));
+          // value);
+      break;
+    }
+    default: return;
+  }
+  _parameters[index] = value;
+}
+
+
+// -------------------------------------------------------------------
+// Process
+
+// void HeavyDPF_arp_delay_env::activate()
+// {
+
+// }
+
+// void HeavyDPF_arp_delay_env::deactivate()
+// {
+
+// }
+
+void HeavyDPF_arp_delay_env::run(const float** inputs, float** outputs, uint32_t frames, const MidiEvent* midiEvents, uint32_t midiEventCount)
+{
+  uint32_t framesDone = 0;
+  uint32_t curEventIndex = 0;
+
+  _context->process((float**)inputs, outputs, frames);
+
+  while (framesDone < frames)
+  {
+    while (curEventIndex < midiEventCount && framesDone == midiEvents[curEventIndex].frame)
+    {
+      if (midiEvents[curEventIndex].size > MidiEvent::kDataSize)
+          continue;
+
+      int status = midiEvents[curEventIndex].data[0];
+      int command = status & 0xF0;
+      int channel = status & 0x0F;
+      int data1   = midiEvents[curEventIndex].data[1];
+      int data2   = midiEvents[curEventIndex].data[2];
+
+      switch (command) {
+        case 0x80:   // note off
+        case 0x90: { // note on
+          _context->sendMessageToReceiverV(0x67E37CA3, // __hv_notein
+              1000.0/getSampleRate(), "fff",
+              (float) data1, // pitch
+              (float) data2, // velocity
+              (float) channel);
+          break;
+        }
+        case 0xB0: { // control change
+          _context->sendMessageToReceiverV(0x41BE0F9C, // __hv_ctlin
+              1000.0/getSampleRate(), "fff",
+              (float) data2, // value
+              (float) data1, // controller number
+              (float) channel);
+          break;
+        }
+        case 0xC0: { // program change
+          _context->sendMessageToReceiverV(0x2E1EA03D, // __hv_pgmin,
+              1000.0/getSampleRate(), "ff",
+              (float) data1,
+              (float) channel);
+          break;
+        }
+        case 0xD0: { // aftertouch
+          _context->sendMessageToReceiverV(0x553925BD, // __hv_touchin
+              1000.0/getSampleRate(), "ff",
+              (float) data1,
+              (float) channel);
+          break;
+        }
+        case 0xE0: { // pitch bend
+          hv_uint32_t value = (((hv_uint32_t) data2) << 7) | ((hv_uint32_t) data1);
+          _context->sendMessageToReceiverV(0x3083F0F7, // __hv_bendin
+              1000.0/getSampleRate(), "ff",
+              (float) value,
+              (float) channel);
+          break;
+        }
+        default: break;
+      }
+      curEventIndex++;
+    }
+    framesDone++;
+  }
+}
+
+// -------------------------------------------------------------------
+// Callbacks
+
+void HeavyDPF_arp_delay_env::sampleRateChanged(double newSampleRate)
+{
+  if (getSampleRate() != newSampleRate) {
+    delete _context;
+
+    _context = new Heavy_arp_delay_env(newSampleRate, 10, 4, 2);
+    // ensure that the new context has the current parameters
+    for (int i = 0; i < HV_LV2_NUM_PARAMETERS; ++i) {
+      setParameterValue(i, _parameters[i]);
+    }
+  }
+}
+
+// -----------------------------------------------------------------------
+/* Plugin entry point, called by DPF to create a new plugin instance. */
+
+Plugin* createPlugin()
+{
+    return new HeavyDPF_arp_delay_env();
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO

distrho/source/HeavyDPF_arp_delay_env.hpp

@@ -0,0 +1,136 @@
+/**
+ * Copyright (c) 2021 Enzien Audio, Ltd.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions, and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the phrase "powered by heavy",
+ *    the heavy logo, and a hyperlink to https://enzienaudio.com, all in a visible
+ *    form.
+ * 
+ *   2.1 If the Application is distributed in a store system (for example,
+ *       the Apple "App Store" or "Google Play"), the phrase "powered by heavy"
+ *       shall be included in the app description or the copyright text as well as
+ *       the in the app itself. The heavy logo will shall be visible in the app
+ *       itself as well.
+ * 
+ * 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 HOLDER 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.
+ * 
+ */
+
+#ifndef _HEAVY_LV2_ARP_DELAY_ENV_
+#define _HEAVY_LV2_ARP_DELAY_ENV_
+
+#include "DistrhoPlugin.hpp"
+#include "Heavy_arp_delay_env.hpp"
+
+START_NAMESPACE_DISTRHO
+
+class HeavyDPF_arp_delay_env : public Plugin
+{
+public:
+  enum Parameters
+  {
+      paramArp_Pitch,
+      paramArp_Speed,
+      paramDelay_Repeats,
+      paramDelay_Time,
+  };
+
+  HeavyDPF_arp_delay_env();
+  ~HeavyDPF_arp_delay_env() override;
+
+protected:
+  // -------------------------------------------------------------------
+  // Information
+
+  const char* getLabel() const noexcept override
+  {
+    return "arp_delay_env";
+  }
+
+  const char* getDescription() const override
+  {
+    return "";
+  }
+
+  const char* getMaker() const noexcept override
+  {
+    return "Wasted Audio";
+}
+
+  const char* getHomePage() const override
+  {
+    return "https://github.com/wasted.audio/arp_delay_env";
+  }
+
+  const char* getLicense() const noexcept override
+  {
+    return "GPL v3+";
+  }
+
+  uint32_t getVersion() const noexcept override
+  {
+    return d_version(0, 0, 1);
+  }
+
+  int64_t getUniqueId() const noexcept override
+  {
+    // return d_cconst('W', 'S', 't', 'd');
+    return int64_t( 0x53FCAAC1 );
+  }
+
+  // -------------------------------------------------------------------
+  // Init
+
+  void initParameter(uint32_t index, Parameter& parameter) override;
+
+  // -------------------------------------------------------------------
+  // Internal data
+
+  float getParameterValue(uint32_t index) const override;
+  void  setParameterValue(uint32_t index, float value) override;
+
+  // -------------------------------------------------------------------
+  // Process
+
+  // void activate() override;
+  // void deactivate() override;
+  void run(const float** inputs, float** outputs, uint32_t frames, const MidiEvent* midiEvents, uint32_t midiEventCount) override;
+
+  // -------------------------------------------------------------------
+  // Callbacks
+
+  void sampleRateChanged(double newSampleRate) override;
+
+  // -------------------------------------------------------------------
+
+private:
+  // parameters
+  float _parameters[4]; // in range of [0,1]
+
+  // heavy context
+  HeavyContextInterface *_context;
+
+  // HeavyDPF_arp_delay_env<float> farp_delay_env;
+
+  DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(HeavyDPF_arp_delay_env)
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+#endif // _HEAVY_LV2_ARP_DELAY_ENV_

distrho/source/Heavy_arp_delay_env.cpp

@@ -0,0 +1,777 @@
+/**
+ * Copyright (c) 2021 Enzien Audio, Ltd.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions, and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the phrase "powered by heavy",
+ *    the heavy logo, and a hyperlink to https://enzienaudio.com, all in a visible
+ *    form.
+ * 
+ *   2.1 If the Application is distributed in a store system (for example,
+ *       the Apple "App Store" or "Google Play"), the phrase "powered by heavy"
+ *       shall be included in the app description or the copyright text as well as
+ *       the in the app itself. The heavy logo will shall be visible in the app
+ *       itself as well.
+ * 
+ * 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 HOLDER 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 "Heavy_arp_delay_env.hpp"
+
+#define Context(_c) reinterpret_cast<Heavy_arp_delay_env *>(_c)
+
+
+
+/*
+ * C Functions
+ */
+
+extern "C" {
+  HV_EXPORT HeavyContextInterface *hv_arp_delay_env_new(double sampleRate) {
+    return new Heavy_arp_delay_env(sampleRate);
+  }
+
+  HV_EXPORT HeavyContextInterface *hv_arp_delay_env_new_with_options(double sampleRate,
+      int poolKb, int inQueueKb, int outQueueKb) {
+    return new Heavy_arp_delay_env(sampleRate, poolKb, inQueueKb, outQueueKb);
+  }
+} // extern "C"
+
+
+
+
+
+
+
+/*
+ * Class Functions
+ */
+
+Heavy_arp_delay_env::Heavy_arp_delay_env(double sampleRate, int poolKb, int inQueueKb, int outQueueKb)
+    : HeavyContext(sampleRate, poolKb, inQueueKb, outQueueKb) {
+  numBytes += sLine_init(&sLine_5Jrovr0w);
+  numBytes += sTabhead_init(&sTabhead_5flIzcsR, &hTable_RQkgAERq);
+  numBytes += sTabread_init(&sTabread_3ztnQBI7, &hTable_RQkgAERq, false);
+  numBytes += sTabread_init(&sTabread_Va5jECJY, &hTable_RQkgAERq, false);
+  numBytes += sPhasor_k_init(&sPhasor_deMq4ELY, 220.0f, sampleRate);
+  numBytes += sLine_init(&sLine_tLkWSR92);
+  numBytes += sTabwrite_init(&sTabwrite_lra5KFKD, &hTable_RQkgAERq);
+  numBytes += cVar_init_f(&cVar_QpNfcxTV, 0.0f);
+  numBytes += cDelay_init(this, &cDelay_TiC320ze, 0.0f);
+  numBytes += cVar_init_f(&cVar_BG8d1bMD, 300.0f);
+  numBytes += cBinop_init(&cBinop_aL2oj1zg, 0.0f); // __mul
+  numBytes += cDelay_init(this, &cDelay_XSmTcSC1, 0.0f);
+  numBytes += cDelay_init(this, &cDelay_pDIGPhjJ, 0.0f);
+  numBytes += hTable_init(&hTable_RQkgAERq, 256);
+  numBytes += cVar_init_f(&cVar_SEZ4VjpC, 0.0f);
+  numBytes += cVar_init_f(&cVar_W0akXWRy, 0.0f);
+  numBytes += cVar_init_f(&cVar_fQgeYZ23, 0.0f);
+  numBytes += cVar_init_f(&cVar_VnBDaCLo, 0.0f);
+  numBytes += cVar_init_s(&cVar_XMZRreVm, "del-del");
+  numBytes += sVarf_init(&sVarf_1XPUT766, 0.0f, 0.0f, false);
+  numBytes += sVarf_init(&sVarf_Puoj2QPe, 0.0f, 0.0f, false);
+  numBytes += sVarf_init(&sVarf_b7By7QIh, 0.0f, 0.0f, false);
+  numBytes += cVar_init_f(&cVar_wcCP0NJi, 1.0f);
+  numBytes += cSlice_init(&cSlice_Fw1uajNs, 2, 1);
+  numBytes += cSlice_init(&cSlice_YW3QKnTq, 1, 1);
+  numBytes += cSlice_init(&cSlice_AfFvCgf9, 0, 1);
+  numBytes += cBinop_init(&cBinop_oimVaEsO, 1.0f); // __pow
+  numBytes += cBinop_init(&cBinop_hesyA8Yg, 0.0f); // __add
+  numBytes += sVarf_init(&sVarf_7lIBPjgU, 0.3f, 0.0f, false);
+  
+  // schedule a message to trigger all loadbangs via the __hv_init receiver
+  scheduleMessageForReceiver(0xCE5CC65B, msg_initWithBang(HV_MESSAGE_ON_STACK(1), 0));
+}
+
+Heavy_arp_delay_env::~Heavy_arp_delay_env() {
+  hTable_free(&hTable_RQkgAERq);
+}
+
+HvTable *Heavy_arp_delay_env::getTableForHash(hv_uint32_t tableHash) {switch (tableHash) {
+    case 0x7BAC8768: return &hTable_RQkgAERq; // del-del
+    default: return nullptr;
+  }
+}
+
+void Heavy_arp_delay_env::scheduleMessageForReceiver(hv_uint32_t receiverHash, HvMessage *m) {
+  switch (receiverHash) {
+    case 0x40ADE322: { // Arp_Pitch
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_XUCgPiDD_sendMessage);
+      break;
+    }
+    case 0x234E72EF: { // Arp_Speed
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_EcfMX78P_sendMessage);
+      break;
+    }
+    case 0x53767352: { // Delay_Repeats
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_GkgEZDwE_sendMessage);
+      break;
+    }
+    case 0xEE78D101: { // Delay_Time
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_4Kzf4FZT_sendMessage);
+      break;
+    }
+    case 0xCE5CC65B: { // __hv_init
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_mK4YUsJl_sendMessage);
+      break;
+    }
+    case 0x67E37CA3: { // __hv_notein
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_eXrF3UlG_sendMessage);
+      break;
+    }
+    default: return;
+  }
+}
+
+int Heavy_arp_delay_env::getParameterInfo(int index, HvParameterInfo *info) {
+  if (info != nullptr) {
+    switch (index) {
+      case 0: {
+        info->name = "Arp_Pitch";
+        info->hash = 0x40ADE322;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 1.0f;
+        info->defaultVal = 0.5f;
+        break;
+      }
+      case 1: {
+        info->name = "Arp_Speed";
+        info->hash = 0x234E72EF;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 1.0f;
+        info->defaultVal = 0.5f;
+        break;
+      }
+      case 2: {
+        info->name = "Delay_Repeats";
+        info->hash = 0x53767352;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 1.0f;
+        info->defaultVal = 0.5f;
+        break;
+      }
+      case 3: {
+        info->name = "Delay_Time";
+        info->hash = 0xEE78D101;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 1.0f;
+        info->defaultVal = 0.5f;
+        break;
+      }
+      default: {
+        info->name = "invalid parameter index";
+        info->hash = 0;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 0.0f;
+        info->defaultVal = 0.0f;
+        break;
+      }
+    }
+  }
+  return 4;
+}
+
+
+
+/*
+ * Send Function Implementations
+ */
+
+
+void Heavy_arp_delay_env::cVar_QpNfcxTV_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_onMessage(_c, &Context(_c)->cBinop_hesyA8Yg, HV_BINOP_ADD, 1, m, &cBinop_hesyA8Yg_sendMessage);
+}
+
+void Heavy_arp_delay_env::cSwitchcase_JEjQ8389_onMessage(HeavyContextInterface *_c, void *o, int letIn, const HvMessage *const m, void *sendMessage) {
+  switch (msg_getHash(m, 0)) {
+    case 0x3F800000: { // "1.0"
+      cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_zerZuBAj_sendMessage);
+      break;
+    }
+    default: {
+      break;
+    }
+  }
+}
+
+void Heavy_arp_delay_env::cCast_zerZuBAj_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_A0C5qwHZ_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::cSwitchcase_MAHWLSLi_onMessage(HeavyContextInterface *_c, void *o, int letIn, const HvMessage *const m, void *sendMessage) {
+  switch (msg_getHash(m, 0)) {
+    case 0x0: { // "0.0"
+      cMsg_EIFIlHRW_sendMessage(_c, 0, m);
+      break;
+    }
+    case 0x7A5B032D: { // "stop"
+      cMsg_EIFIlHRW_sendMessage(_c, 0, m);
+      break;
+    }
+    default: {
+      cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_hpcdUgv0_sendMessage);
+      break;
+    }
+  }
+}
+
+void Heavy_arp_delay_env::cDelay_TiC320ze_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const m) {
+  cDelay_clearExecutingMessage(&Context(_c)->cDelay_TiC320ze, m);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_TiC320ze, 0, m, &cDelay_TiC320ze_sendMessage);
+  cMsg_qVR4M6qt_sendMessage(_c, 0, m);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_79XmGDKd_sendMessage);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_xyQ6QCqj_sendMessage);
+}
+
+void Heavy_arp_delay_env::cCast_hpcdUgv0_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_EIFIlHRW_sendMessage(_c, 0, m);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_TiC320ze, 0, m, &cDelay_TiC320ze_sendMessage);
+  cMsg_qVR4M6qt_sendMessage(_c, 0, m);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_79XmGDKd_sendMessage);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_xyQ6QCqj_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_nEreHrAN_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "samplerate");
+  cSystem_onMessage(_c, NULL, 0, m, &cSystem_f2BGea9a_sendMessage);
+}
+
+void Heavy_arp_delay_env::cSystem_f2BGea9a_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_DIVIDE, 1000.0f, 0, m, &cBinop_IvE42sSb_sendMessage);
+}
+
+void Heavy_arp_delay_env::cVar_BG8d1bMD_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_onMessage(_c, &Context(_c)->cBinop_aL2oj1zg, HV_BINOP_MULTIPLY, 0, m, &cBinop_aL2oj1zg_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_EIFIlHRW_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "clear");
+  cDelay_onMessage(_c, &Context(_c)->cDelay_TiC320ze, 0, m, &cDelay_TiC320ze_sendMessage);
+}
+
+void Heavy_arp_delay_env::cBinop_N9H9NawL_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cDelay_onMessage(_c, &Context(_c)->cDelay_TiC320ze, 2, m, &cDelay_TiC320ze_sendMessage);
+}
+
+void Heavy_arp_delay_env::cBinop_IvE42sSb_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_onMessage(_c, &Context(_c)->cBinop_aL2oj1zg, HV_BINOP_MULTIPLY, 1, m, &cBinop_aL2oj1zg_sendMessage);
+}
+
+void Heavy_arp_delay_env::cBinop_aL2oj1zg_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MAX, 1.0f, 0, m, &cBinop_N9H9NawL_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_fVpsf0EY_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "samplerate");
+  cSystem_onMessage(_c, NULL, 0, m, &cSystem_qdiBBSrT_sendMessage);
+}
+
+void Heavy_arp_delay_env::cSystem_qdiBBSrT_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_DIVIDE, 1000.0f, 0, m, &cBinop_D578FYDj_sendMessage);
+}
+
+void Heavy_arp_delay_env::cDelay_XSmTcSC1_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const m) {
+  cDelay_clearExecutingMessage(&Context(_c)->cDelay_XSmTcSC1, m);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_pDIGPhjJ, 0, m, &cDelay_pDIGPhjJ_sendMessage);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_XSmTcSC1, 0, m, &cDelay_XSmTcSC1_sendMessage);
+  sTabwrite_onMessage(_c, &Context(_c)->sTabwrite_lra5KFKD, 1, m, NULL);
+}
+
+void Heavy_arp_delay_env::cDelay_pDIGPhjJ_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const m) {
+  cDelay_clearExecutingMessage(&Context(_c)->cDelay_pDIGPhjJ, m);
+  cMsg_8Jd91u4J_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::cBinop_a6xP9f6r_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_L8kmBApX_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::hTable_RQkgAERq_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_jjqDeWpg_sendMessage(_c, 0, m);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_XSmTcSC1, 2, m, &cDelay_XSmTcSC1_sendMessage);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_TyQ72s6o_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_L8kmBApX_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(2);
+  msg_init(m, 2, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "resize");
+  msg_setElementToFrom(m, 1, n, 0);
+  hTable_onMessage(_c, &Context(_c)->hTable_RQkgAERq, 0, m, &hTable_RQkgAERq_sendMessage);
+}
+
+void Heavy_arp_delay_env::cBinop_D578FYDj_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 1000.0f, 0, m, &cBinop_a6xP9f6r_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_8Jd91u4J_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "mirror");
+  hTable_onMessage(_c, &Context(_c)->hTable_RQkgAERq, 0, m, &hTable_RQkgAERq_sendMessage);
+}
+
+void Heavy_arp_delay_env::cCast_TyQ72s6o_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cDelay_onMessage(_c, &Context(_c)->cDelay_XSmTcSC1, 0, m, &cDelay_XSmTcSC1_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_jjqDeWpg_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0,  static_cast<float>(HV_N_SIMD));
+  cDelay_onMessage(_c, &Context(_c)->cDelay_pDIGPhjJ, 2, m, &cDelay_pDIGPhjJ_sendMessage);
+}
+
+void Heavy_arp_delay_env::cVar_SEZ4VjpC_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 1000.0f, 0, m, &cBinop_rnkTCEOE_sendMessage);
+}
+
+void Heavy_arp_delay_env::cVar_W0akXWRy_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 440.0f, 0, m, &cBinop_86yU2trO_sendMessage);
+}
+
+void Heavy_arp_delay_env::cVar_fQgeYZ23_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 600.0f, 0, m, &cBinop_b7c8uTvL_sendMessage);
+}
+
+void Heavy_arp_delay_env::cVar_VnBDaCLo_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sVarf_onMessage(_c, &Context(_c)->sVarf_7lIBPjgU, m);
+}
+
+void Heavy_arp_delay_env::cMsg_AusRai4k_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "samplerate");
+  cSystem_onMessage(_c, NULL, 0, m, &cSystem_1GtyEzxF_sendMessage);
+}
+
+void Heavy_arp_delay_env::cSystem_1GtyEzxF_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_DIVIDE, 1000.0f, 0, m, &cBinop_D7aI6oLJ_sendMessage);
+}
+
+void Heavy_arp_delay_env::cVar_XMZRreVm_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_u7DQ67Ug_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::cSystem_NStX9wYa_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_SUBTRACT, 1.0f, 0, m, &cBinop_dhfHyNRX_sendMessage);
+  sVarf_onMessage(_c, &Context(_c)->sVarf_1XPUT766, m);
+}
+
+void Heavy_arp_delay_env::cBinop_D7aI6oLJ_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sVarf_onMessage(_c, &Context(_c)->sVarf_Puoj2QPe, m);
+}
+
+void Heavy_arp_delay_env::cMsg_u7DQ67Ug_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(3);
+  msg_init(m, 3, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "table");
+  msg_setElementToFrom(m, 1, n, 0);
+  msg_setSymbol(m, 2, "size");
+  cSystem_onMessage(_c, NULL, 0, m, &cSystem_NStX9wYa_sendMessage);
+}
+
+void Heavy_arp_delay_env::cBinop_dhfHyNRX_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sVarf_onMessage(_c, &Context(_c)->sVarf_b7By7QIh, m);
+}
+
+void Heavy_arp_delay_env::cVar_wcCP0NJi_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sLine_onMessage(_c, &Context(_c)->sLine_tLkWSR92, 0, m, NULL);
+}
+
+void Heavy_arp_delay_env::cSlice_Fw1uajNs_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  switch (letIn) {
+    case 0: {
+      break;
+    }
+    case 1: {
+      break;
+    }
+    default: return;
+  }
+}
+
+void Heavy_arp_delay_env::cSlice_YW3QKnTq_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  switch (letIn) {
+    case 0: {
+      break;
+    }
+    case 1: {
+      break;
+    }
+    default: return;
+  }
+}
+
+void Heavy_arp_delay_env::cSlice_AfFvCgf9_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  switch (letIn) {
+    case 0: {
+      cBinop_k_onMessage(_c, NULL, HV_BINOP_SUBTRACT, 69.0f, 0, m, &cBinop_Pt69l6DW_sendMessage);
+      break;
+    }
+    case 1: {
+      break;
+    }
+    default: return;
+  }
+}
+
+void Heavy_arp_delay_env::cBinop_BY849OFM_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sPhasor_k_onMessage(_c, &Context(_c)->sPhasor_deMq4ELY, 0, m);
+}
+
+void Heavy_arp_delay_env::cBinop_Pt69l6DW_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_DIVIDE, 12.0f, 0, m, &cBinop_x27TkP5A_sendMessage);
+}
+
+void Heavy_arp_delay_env::cBinop_x27TkP5A_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_onMessage(_c, &Context(_c)->cBinop_oimVaEsO, HV_BINOP_POW, 1, m, &cBinop_oimVaEsO_sendMessage);
+  cMsg_Y0D08wrf_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::cBinop_oimVaEsO_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 440.0f, 0, m, &cBinop_BY849OFM_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_Y0D08wrf_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 2.0f);
+  cBinop_onMessage(_c, &Context(_c)->cBinop_oimVaEsO, HV_BINOP_POW, 0, m, &cBinop_oimVaEsO_sendMessage);
+}
+
+void Heavy_arp_delay_env::cBinop_hesyA8Yg_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cVar_onMessage(_c, &Context(_c)->cVar_QpNfcxTV, 0, m, &cVar_QpNfcxTV_sendMessage);
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_GREATER_THAN, 4.0f, 0, m, &cBinop_QamkPGUu_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_qVR4M6qt_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 1.0f);
+  cBinop_onMessage(_c, &Context(_c)->cBinop_hesyA8Yg, HV_BINOP_ADD, 0, m, &cBinop_hesyA8Yg_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_A0C5qwHZ_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 0.0f);
+  cVar_onMessage(_c, &Context(_c)->cVar_QpNfcxTV, 0, m, &cVar_QpNfcxTV_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_6yCKZYJD_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 1.0f);
+  cSwitchcase_MAHWLSLi_onMessage(_c, NULL, 0, m, NULL);
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 1000.0f, 0, m, &cBinop_rnkTCEOE_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_fDDSBI42_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 0.3f);
+  sVarf_onMessage(_c, &Context(_c)->sVarf_7lIBPjgU, m);
+}
+
+void Heavy_arp_delay_env::cBinop_86yU2trO_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+}
+
+void Heavy_arp_delay_env::cMsg_XJFOKNQO_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 440.0f);
+}
+
+void Heavy_arp_delay_env::cMsg_g5DX3UAM_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 220.0f);
+  cMsg_5K6Ff69g_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::cBinop_b7c8uTvL_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_ADD, 20.0f, 0, m, &cBinop_exCKzhjC_sendMessage);
+}
+
+void Heavy_arp_delay_env::cBinop_exCKzhjC_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_5K6Ff69g_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::cBinop_QamkPGUu_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cSwitchcase_JEjQ8389_onMessage(_c, NULL, 0, m, NULL);
+}
+
+void Heavy_arp_delay_env::cBinop_rnkTCEOE_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cVar_onMessage(_c, &Context(_c)->cVar_BG8d1bMD, 0, m, &cVar_BG8d1bMD_sendMessage);
+}
+
+void Heavy_arp_delay_env::cMsg_5K6Ff69g_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(2);
+  msg_init(m, 2, msg_getTimestamp(n));
+  msg_setElementToFrom(m, 0, n, 0);
+  msg_setFloat(m, 1, 20.0f);
+  sLine_onMessage(_c, &Context(_c)->sLine_5Jrovr0w, 0, m, NULL);
+}
+
+void Heavy_arp_delay_env::cMsg_T2Vn5l1r_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(2);
+  msg_init(m, 2, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 0.0f);
+  msg_setFloat(m, 1, 300.0f);
+  sLine_onMessage(_c, &Context(_c)->sLine_tLkWSR92, 0, m, NULL);
+}
+
+void Heavy_arp_delay_env::cCast_xyQ6QCqj_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_T2Vn5l1r_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::cCast_79XmGDKd_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cVar_onMessage(_c, &Context(_c)->cVar_wcCP0NJi, 0, m, &cVar_wcCP0NJi_sendMessage);
+}
+
+void Heavy_arp_delay_env::cReceive_mK4YUsJl_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_nEreHrAN_sendMessage(_c, 0, m);
+  cVar_onMessage(_c, &Context(_c)->cVar_BG8d1bMD, 0, m, &cVar_BG8d1bMD_sendMessage);
+  cMsg_fVpsf0EY_sendMessage(_c, 0, m);
+  cMsg_6yCKZYJD_sendMessage(_c, 0, m);
+  cMsg_fDDSBI42_sendMessage(_c, 0, m);
+  cMsg_XJFOKNQO_sendMessage(_c, 0, m);
+  cMsg_g5DX3UAM_sendMessage(_c, 0, m);
+  cVar_onMessage(_c, &Context(_c)->cVar_XMZRreVm, 0, m, &cVar_XMZRreVm_sendMessage);
+  cMsg_AusRai4k_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env::cReceive_eXrF3UlG_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cSlice_onMessage(_c, &Context(_c)->cSlice_Fw1uajNs, 0, m, &cSlice_Fw1uajNs_sendMessage);
+  cSlice_onMessage(_c, &Context(_c)->cSlice_YW3QKnTq, 0, m, &cSlice_YW3QKnTq_sendMessage);
+  cSlice_onMessage(_c, &Context(_c)->cSlice_AfFvCgf9, 0, m, &cSlice_AfFvCgf9_sendMessage);
+}
+
+void Heavy_arp_delay_env::cReceive_GkgEZDwE_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sVarf_onMessage(_c, &Context(_c)->sVarf_7lIBPjgU, m);
+}
+
+void Heavy_arp_delay_env::cReceive_XUCgPiDD_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 440.0f, 0, m, &cBinop_86yU2trO_sendMessage);
+}
+
+void Heavy_arp_delay_env::cReceive_EcfMX78P_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 1000.0f, 0, m, &cBinop_rnkTCEOE_sendMessage);
+}
+
+void Heavy_arp_delay_env::cReceive_4Kzf4FZT_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 600.0f, 0, m, &cBinop_b7c8uTvL_sendMessage);
+}
+
+
+
+
+/*
+ * Context Process Implementation
+ */
+
+int Heavy_arp_delay_env::process(float **inputBuffers, float **outputBuffers, int n) {
+  while (hLp_hasData(&inQueue)) {
+    hv_uint32_t numBytes = 0;
+    ReceiverMessagePair *p = reinterpret_cast<ReceiverMessagePair *>(hLp_getReadBuffer(&inQueue, &numBytes));
+    hv_assert(numBytes >= sizeof(ReceiverMessagePair));
+    scheduleMessageForReceiver(p->receiverHash, &p->msg);
+    hLp_consume(&inQueue);
+  }
+  const int n4 = n & ~HV_N_SIMD_MASK; // ensure that the block size is a multiple of HV_N_SIMD
+
+  // temporary signal vars
+  hv_bufferf_t Bf0, Bf1, Bf2, Bf3, Bf4, Bf5, Bf6;
+  hv_bufferi_t Bi0, Bi1;
+
+  // input and output vars
+  hv_bufferf_t O0, O1;
+
+  // declare and init the zero buffer
+  hv_bufferf_t ZERO; __hv_zero_f(VOf(ZERO));
+
+  hv_uint32_t nextBlock = blockStartTimestamp;
+  for (int n = 0; n < n4; n += HV_N_SIMD) {
+
+    // process all of the messages for this block
+    nextBlock += HV_N_SIMD;
+    while (mq_hasMessageBefore(&mq, nextBlock)) {
+      MessageNode *const node = mq_peek(&mq);
+      node->sendMessage(this, node->let, node->m);
+      mq_pop(&mq);
+    }
+
+    
+
+    // zero output buffers
+    __hv_zero_f(VOf(O0));
+    __hv_zero_f(VOf(O1));
+
+    // process all signal functions
+    __hv_line_f(&sLine_5Jrovr0w, VOf(Bf0));
+    __hv_tabhead_f(&sTabhead_5flIzcsR, VOf(Bf1));
+    __hv_var_k_f_r(VOf(Bf2), -1.0f, -2.0f, -3.0f, -4.0f, -5.0f, -6.0f, -7.0f, -8.0f);
+    __hv_add_f(VIf(Bf1), VIf(Bf2), VOf(Bf2));
+    __hv_varread_f(&sVarf_Puoj2QPe, VOf(Bf1));
+    __hv_mul_f(VIf(Bf0), VIf(Bf1), VOf(Bf1));
+    __hv_varread_f(&sVarf_b7By7QIh, VOf(Bf0));
+    __hv_min_f(VIf(Bf1), VIf(Bf0), VOf(Bf0));
+    __hv_zero_f(VOf(Bf1));
+    __hv_max_f(VIf(Bf0), VIf(Bf1), VOf(Bf1));
+    __hv_sub_f(VIf(Bf2), VIf(Bf1), VOf(Bf1));
+    __hv_floor_f(VIf(Bf1), VOf(Bf2));
+    __hv_varread_f(&sVarf_1XPUT766, VOf(Bf0));
+    __hv_zero_f(VOf(Bf3));
+    __hv_lt_f(VIf(Bf2), VIf(Bf3), VOf(Bf3));
+    __hv_and_f(VIf(Bf0), VIf(Bf3), VOf(Bf3));
+    __hv_add_f(VIf(Bf2), VIf(Bf3), VOf(Bf3));
+    __hv_cast_fi(VIf(Bf3), VOi(Bi0));
+    __hv_var_k_i(VOi(Bi1), 1, 1, 1, 1, 1, 1, 1, 1);
+    __hv_add_i(VIi(Bi0), VIi(Bi1), VOi(Bi1));
+    __hv_tabread_if(&sTabread_3ztnQBI7, VIi(Bi1), VOf(Bf3));
+    __hv_tabread_if(&sTabread_Va5jECJY, VIi(Bi0), VOf(Bf0));
+    __hv_sub_f(VIf(Bf3), VIf(Bf0), VOf(Bf3));
+    __hv_sub_f(VIf(Bf1), VIf(Bf2), VOf(Bf2));
+    __hv_fma_f(VIf(Bf3), VIf(Bf2), VIf(Bf0), VOf(Bf0));
+    __hv_varread_f(&sVarf_7lIBPjgU, VOf(Bf2));
+    __hv_phasor_k_f(&sPhasor_deMq4ELY, VOf(Bf3));
+    __hv_var_k_f(VOf(Bf1), 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f);
+    __hv_sub_f(VIf(Bf3), VIf(Bf1), VOf(Bf1));
+    __hv_abs_f(VIf(Bf1), VOf(Bf1));
+    __hv_var_k_f(VOf(Bf3), 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f);
+    __hv_sub_f(VIf(Bf1), VIf(Bf3), VOf(Bf3));
+    __hv_var_k_f(VOf(Bf1), 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f);
+    __hv_mul_f(VIf(Bf3), VIf(Bf1), VOf(Bf1));
+    __hv_mul_f(VIf(Bf1), VIf(Bf1), VOf(Bf3));
+    __hv_mul_f(VIf(Bf1), VIf(Bf3), VOf(Bf4));
+    __hv_mul_f(VIf(Bf4), VIf(Bf3), VOf(Bf3));
+    __hv_var_k_f(VOf(Bf5), 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f);
+    __hv_var_k_f(VOf(Bf6), -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f);
+    __hv_fma_f(VIf(Bf4), VIf(Bf6), VIf(Bf1), VOf(Bf1));
+    __hv_fma_f(VIf(Bf3), VIf(Bf5), VIf(Bf1), VOf(Bf1));
+    __hv_line_f(&sLine_tLkWSR92, VOf(Bf5));
+    __hv_mul_f(VIf(Bf1), VIf(Bf5), VOf(Bf5));
+    __hv_fma_f(VIf(Bf0), VIf(Bf2), VIf(Bf5), VOf(Bf2));
+    __hv_tabwrite_f(&sTabwrite_lra5KFKD, VIf(Bf2));
+    __hv_add_f(VIf(Bf5), VIf(Bf0), VOf(Bf0));
+    __hv_var_k_f(VOf(Bf5), 0.2f, 0.2f, 0.2f, 0.2f, 0.2f, 0.2f, 0.2f, 0.2f);
+    __hv_mul_f(VIf(Bf0), VIf(Bf5), VOf(Bf5));
+    __hv_add_f(VIf(Bf5), VIf(O1), VOf(O1));
+    __hv_add_f(VIf(Bf5), VIf(O0), VOf(O0));
+
+    // save output vars to output buffer
+    __hv_store_f(outputBuffers[0]+n, VIf(O0));
+    __hv_store_f(outputBuffers[1]+n, VIf(O1));
+  }
+
+  blockStartTimestamp = nextBlock;
+
+  return n4; // return the number of frames processed
+}
+
+int Heavy_arp_delay_env::processInline(float *inputBuffers, float *outputBuffers, int n4) {
+  hv_assert(!(n4 & HV_N_SIMD_MASK)); // ensure that n4 is a multiple of HV_N_SIMD
+
+  // define the heavy input buffer for 0 channel(s)
+  float **const bIn = NULL;
+
+  // define the heavy output buffer for 2 channel(s)
+  float **const bOut = reinterpret_cast<float **>(hv_alloca(2*sizeof(float *)));
+  bOut[0] = outputBuffers+(0*n4);
+  bOut[1] = outputBuffers+(1*n4);
+
+  int n = process(bIn, bOut, n4);
+  return n;
+}
+
+int Heavy_arp_delay_env::processInlineInterleaved(float *inputBuffers, float *outputBuffers, int n4) {
+  hv_assert(n4 & ~HV_N_SIMD_MASK); // ensure that n4 is a multiple of HV_N_SIMD
+
+  // define the heavy input buffer for 0 channel(s), uninterleave
+  float *const bIn = NULL;
+
+  // define the heavy output buffer for 2 channel(s)
+  float *const bOut = reinterpret_cast<float *>(hv_alloca(2*n4*sizeof(float)));
+
+  int n = processInline(bIn, bOut, n4);
+
+  // interleave the heavy output into the output buffer
+  #if HV_SIMD_AVX
+  for (int i = 0, j = 0; j < n4; j += 8, i += 16) {
+    __m256 x = _mm256_load_ps(bOut+j);    // LLLLLLLL
+    __m256 y = _mm256_load_ps(bOut+n4+j); // RRRRRRRR
+    __m256 a = _mm256_unpacklo_ps(x, y);  // LRLRLRLR
+    __m256 b = _mm256_unpackhi_ps(x, y);  // LRLRLRLR
+    _mm256_store_ps(outputBuffers+i, a);
+    _mm256_store_ps(outputBuffers+8+i, b);
+  }
+  #elif HV_SIMD_SSE
+  for (int i = 0, j = 0; j < n4; j += 4, i += 8) {
+    __m128 x = _mm_load_ps(bOut+j);    // LLLL
+    __m128 y = _mm_load_ps(bOut+n4+j); // RRRR
+    __m128 a = _mm_unpacklo_ps(x, y);  // LRLR
+    __m128 b = _mm_unpackhi_ps(x, y);  // LRLR
+    _mm_store_ps(outputBuffers+i, a);
+    _mm_store_ps(outputBuffers+4+i, b);
+  }
+  #elif HV_SIMD_NEON
+  // https://community.arm.com/groups/processors/blog/2012/03/13/coding-for-neon--part-5-rearranging-vectors
+  for (int i = 0, j = 0; j < n4; j += 4, i += 8) {
+    float32x4_t x = vld1q_f32(bOut+j);
+    float32x4_t y = vld1q_f32(bOut+n4+j);
+    float32x4x2_t z = {x, y};
+    vst2q_f32(outputBuffers+i, z); // interleave and store
+  }
+  #else // HV_SIMD_NONE
+  for (int i = 0; i < 2; ++i) {
+    for (int j = 0; j < n4; ++j) {
+      outputBuffers[i+2*j] = bOut[i*n4+j];
+    }
+  }
+  #endif
+
+  return n;
+}

distrho/source/Heavy_arp_delay_env.h

@@ -0,0 +1,78 @@
+/**
+ * Copyright (c) 2021 Enzien Audio, Ltd.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions, and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the phrase "powered by heavy",
+ *    the heavy logo, and a hyperlink to https://enzienaudio.com, all in a visible
+ *    form.
+ * 
+ *   2.1 If the Application is distributed in a store system (for example,
+ *       the Apple "App Store" or "Google Play"), the phrase "powered by heavy"
+ *       shall be included in the app description or the copyright text as well as
+ *       the in the app itself. The heavy logo will shall be visible in the app
+ *       itself as well.
+ * 
+ * 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 HOLDER 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.
+ * 
+ */
+
+#ifndef _HEAVY_ARP_DELAY_ENV_H_
+#define _HEAVY_ARP_DELAY_ENV_H_
+
+#include "HvHeavy.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if HV_APPLE
+#pragma mark - Heavy Context
+#endif
+
+typedef enum {
+  HV_ARP_DELAY_ENV_PARAM_IN_ARP_PITCH = 0x40ADE322, // Arp_Pitch
+  HV_ARP_DELAY_ENV_PARAM_IN_ARP_SPEED = 0x234E72EF, // Arp_Speed
+  HV_ARP_DELAY_ENV_PARAM_IN_DELAY_REPEATS = 0x53767352, // Delay_Repeats
+  HV_ARP_DELAY_ENV_PARAM_IN_DELAY_TIME = 0xEE78D101, // Delay_Time
+} Hv_arp_delay_env_ParameterIn;
+
+
+/**
+ * Creates a new patch instance.
+ * Sample rate should be positive and in Hertz, e.g. 44100.0.
+ */
+HeavyContextInterface *hv_arp_delay_env_new(double sampleRate);
+
+/**
+ * Creates a new patch instance.
+ * @param sampleRate  Sample rate should be positive (> 0) and in Hertz, e.g. 48000.0.
+ * @param poolKb  Pool size is in kilobytes, and determines the maximum amount of memory
+ *   allocated to messages at any time. By default this is 10 KB.
+ * @param inQueueKb  The size of the input message queue in kilobytes. It determines the
+ *   amount of memory dedicated to holding scheduled messages between calls to
+ *   process(). Default is 2 KB.
+ * @param outQueueKb  The size of the output message queue in kilobytes. It determines the
+ *   amount of memory dedicated to holding scheduled messages to the default sendHook.
+ *   See getNextSentMessage() for info on accessing these messages. Default is 0 KB.
+ */
+HeavyContextInterface *hv_arp_delay_env_new_with_options(double sampleRate, int poolKb, int inQueueKb, int outQueueKb);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_ARP_DELAY_ENV_H_

distrho/source/Heavy_arp_delay_env.hpp

@@ -0,0 +1,196 @@
+/**
+ * Copyright (c) 2021 Enzien Audio, Ltd.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions, and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the phrase "powered by heavy",
+ *    the heavy logo, and a hyperlink to https://enzienaudio.com, all in a visible
+ *    form.
+ * 
+ *   2.1 If the Application is distributed in a store system (for example,
+ *       the Apple "App Store" or "Google Play"), the phrase "powered by heavy"
+ *       shall be included in the app description or the copyright text as well as
+ *       the in the app itself. The heavy logo will shall be visible in the app
+ *       itself as well.
+ * 
+ * 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 HOLDER 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.
+ * 
+ */
+
+#ifndef _HEAVY_CONTEXT_ARP_DELAY_ENV_HPP_
+#define _HEAVY_CONTEXT_ARP_DELAY_ENV_HPP_
+
+// object includes
+#include "HeavyContext.hpp"
+#include "HvSignalLine.h"
+#include "HvControlSystem.h"
+#include "HvSignalTabwrite.h"
+#include "HvSignalPhasor.h"
+#include "HvTable.h"
+#include "HvMath.h"
+#include "HvControlVar.h"
+#include "HvSignalVar.h"
+#include "HvControlCast.h"
+#include "HvControlDelay.h"
+#include "HvSignalTabread.h"
+#include "HvControlSlice.h"
+#include "HvControlBinop.h"
+
+class Heavy_arp_delay_env : public HeavyContext {
+
+ public:
+  Heavy_arp_delay_env(double sampleRate, int poolKb=10, int inQueueKb=2, int outQueueKb=0);
+  ~Heavy_arp_delay_env();
+
+  const char *getName() override { return "arp_delay_env"; }
+  int getNumInputChannels() override { return 0; }
+  int getNumOutputChannels() override { return 2; }
+
+  int process(float **inputBuffers, float **outputBuffer, int n) override;
+  int processInline(float *inputBuffers, float *outputBuffer, int n) override;
+  int processInlineInterleaved(float *inputBuffers, float *outputBuffer, int n) override;
+
+  int getParameterInfo(int index, HvParameterInfo *info) override;
+  struct Parameter {
+    struct In {
+      enum ParameterIn : hv_uint32_t {
+        ARP_PITCH = 0x40ADE322, // Arp_Pitch
+        ARP_SPEED = 0x234E72EF, // Arp_Speed
+        DELAY_REPEATS = 0x53767352, // Delay_Repeats
+        DELAY_TIME = 0xEE78D101, // Delay_Time
+      };
+    };
+  };
+
+ private:
+  HvTable *getTableForHash(hv_uint32_t tableHash) override;
+  void scheduleMessageForReceiver(hv_uint32_t receiverHash, HvMessage *m) override;
+
+  // static sendMessage functions
+  static void cVar_QpNfcxTV_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSwitchcase_JEjQ8389_onMessage(HeavyContextInterface *, void *, int letIn, const HvMessage *const, void *);
+  static void cCast_zerZuBAj_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSwitchcase_MAHWLSLi_onMessage(HeavyContextInterface *, void *, int letIn, const HvMessage *const, void *);
+  static void cDelay_TiC320ze_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cCast_hpcdUgv0_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_nEreHrAN_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSystem_f2BGea9a_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_BG8d1bMD_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_EIFIlHRW_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_N9H9NawL_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_IvE42sSb_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_aL2oj1zg_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_fVpsf0EY_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSystem_qdiBBSrT_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cDelay_XSmTcSC1_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cDelay_pDIGPhjJ_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_a6xP9f6r_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void hTable_RQkgAERq_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_L8kmBApX_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_D578FYDj_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_8Jd91u4J_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cCast_TyQ72s6o_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_jjqDeWpg_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_SEZ4VjpC_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_W0akXWRy_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_fQgeYZ23_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_VnBDaCLo_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_AusRai4k_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSystem_1GtyEzxF_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_XMZRreVm_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSystem_NStX9wYa_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_D7aI6oLJ_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_u7DQ67Ug_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_dhfHyNRX_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_wcCP0NJi_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSlice_Fw1uajNs_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSlice_YW3QKnTq_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSlice_AfFvCgf9_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_BY849OFM_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_Pt69l6DW_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_x27TkP5A_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_oimVaEsO_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_Y0D08wrf_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_hesyA8Yg_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_qVR4M6qt_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_A0C5qwHZ_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_6yCKZYJD_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_fDDSBI42_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_86yU2trO_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_XJFOKNQO_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_g5DX3UAM_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_b7c8uTvL_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_exCKzhjC_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_QamkPGUu_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_rnkTCEOE_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_5K6Ff69g_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_T2Vn5l1r_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cCast_xyQ6QCqj_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cCast_79XmGDKd_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_mK4YUsJl_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_eXrF3UlG_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_GkgEZDwE_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_XUCgPiDD_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_EcfMX78P_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_4Kzf4FZT_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+
+  // objects
+  SignalLine sLine_5Jrovr0w;
+  SignalTabhead sTabhead_5flIzcsR;
+  SignalTabread sTabread_3ztnQBI7;
+  SignalTabread sTabread_Va5jECJY;
+  SignalPhasor sPhasor_deMq4ELY;
+  SignalLine sLine_tLkWSR92;
+  SignalTabwrite sTabwrite_lra5KFKD;
+  ControlVar cVar_QpNfcxTV;
+  ControlDelay cDelay_TiC320ze;
+  ControlVar cVar_BG8d1bMD;
+  ControlBinop cBinop_N9H9NawL;
+  ControlBinop cBinop_IvE42sSb;
+  ControlBinop cBinop_aL2oj1zg;
+  ControlDelay cDelay_XSmTcSC1;
+  ControlDelay cDelay_pDIGPhjJ;
+  ControlBinop cBinop_a6xP9f6r;
+  HvTable hTable_RQkgAERq;
+  ControlBinop cBinop_D578FYDj;
+  ControlVar cVar_SEZ4VjpC;
+  ControlVar cVar_W0akXWRy;
+  ControlVar cVar_fQgeYZ23;
+  ControlVar cVar_VnBDaCLo;
+  ControlVar cVar_XMZRreVm;
+  ControlBinop cBinop_D7aI6oLJ;
+  ControlBinop cBinop_dhfHyNRX;
+  SignalVarf sVarf_1XPUT766;
+  SignalVarf sVarf_Puoj2QPe;
+  SignalVarf sVarf_b7By7QIh;
+  ControlVar cVar_wcCP0NJi;
+  ControlSlice cSlice_Fw1uajNs;
+  ControlSlice cSlice_YW3QKnTq;
+  ControlSlice cSlice_AfFvCgf9;
+  ControlBinop cBinop_BY849OFM;
+  ControlBinop cBinop_Pt69l6DW;
+  ControlBinop cBinop_x27TkP5A;
+  ControlBinop cBinop_oimVaEsO;
+  ControlBinop cBinop_hesyA8Yg;
+  SignalVarf sVarf_7lIBPjgU;
+  ControlBinop cBinop_86yU2trO;
+  ControlBinop cBinop_b7c8uTvL;
+  ControlBinop cBinop_exCKzhjC;
+  ControlBinop cBinop_QamkPGUu;
+  ControlBinop cBinop_rnkTCEOE;
+};
+
+#endif // _HEAVY_CONTEXT_ARP_DELAY_ENV_HPP_

distrho/source/Heavy_arp_delay_env_pd.cpp

@@ -0,0 +1,709 @@
+/**
+ * Copyright (c) 2021 Enzien Audio, Ltd.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions, and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the phrase "powered by heavy",
+ *    the heavy logo, and a hyperlink to https://enzienaudio.com, all in a visible
+ *    form.
+ * 
+ *   2.1 If the Application is distributed in a store system (for example,
+ *       the Apple "App Store" or "Google Play"), the phrase "powered by heavy"
+ *       shall be included in the app description or the copyright text as well as
+ *       the in the app itself. The heavy logo will shall be visible in the app
+ *       itself as well.
+ * 
+ * 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 HOLDER 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 "Heavy_arp_delay_env_pd.hpp"
+
+#define Context(_c) reinterpret_cast<Heavy_arp_delay_env_pd *>(_c)
+
+
+
+/*
+ * C Functions
+ */
+
+extern "C" {
+  HV_EXPORT HeavyContextInterface *hv_arp_delay_env_pd_new(double sampleRate) {
+    return new Heavy_arp_delay_env_pd(sampleRate);
+  }
+
+  HV_EXPORT HeavyContextInterface *hv_arp_delay_env_pd_new_with_options(double sampleRate,
+      int poolKb, int inQueueKb, int outQueueKb) {
+    return new Heavy_arp_delay_env_pd(sampleRate, poolKb, inQueueKb, outQueueKb);
+  }
+} // extern "C"
+
+
+
+
+
+
+
+/*
+ * Class Functions
+ */
+
+Heavy_arp_delay_env_pd::Heavy_arp_delay_env_pd(double sampleRate, int poolKb, int inQueueKb, int outQueueKb)
+    : HeavyContext(sampleRate, poolKb, inQueueKb, outQueueKb) {
+  numBytes += sLine_init(&sLine_CPk6VuuC);
+  numBytes += sTabhead_init(&sTabhead_Ccf3pWD1, &hTable_ncKDzzLt);
+  numBytes += sTabread_init(&sTabread_AIPPIP2p, &hTable_ncKDzzLt, false);
+  numBytes += sTabread_init(&sTabread_OR6AChVH, &hTable_ncKDzzLt, false);
+  numBytes += sPhasor_k_init(&sPhasor_p4d5TEqg, 220.0f, sampleRate);
+  numBytes += sLine_init(&sLine_GYQ4PLNT);
+  numBytes += sTabwrite_init(&sTabwrite_qOQtZKqp, &hTable_ncKDzzLt);
+  numBytes += cVar_init_f(&cVar_YvPEpnUh, 1.0f);
+  numBytes += cVar_init_f(&cVar_eHayjBv6, 0.0f);
+  numBytes += cDelay_init(this, &cDelay_DYnzHpic, 0.0f);
+  numBytes += cVar_init_f(&cVar_hj1UO5Xy, 300.0f);
+  numBytes += cBinop_init(&cBinop_sPNudZ6R, 0.0f); // __mul
+  numBytes += cVar_init_f(&cVar_XXw3dChu, 0.0f);
+  numBytes += cVar_init_f(&cVar_SLtg6rNc, 0.0f);
+  numBytes += cVar_init_f(&cVar_YIxdPCGV, 0.0f);
+  numBytes += cVar_init_s(&cVar_ssKQAxko, "del-del");
+  numBytes += sVarf_init(&sVarf_NKFEO8VS, 0.0f, 0.0f, false);
+  numBytes += sVarf_init(&sVarf_TJn8TVJj, 0.0f, 0.0f, false);
+  numBytes += sVarf_init(&sVarf_0ophamek, 0.0f, 0.0f, false);
+  numBytes += cDelay_init(this, &cDelay_X79tuCf2, 0.0f);
+  numBytes += cDelay_init(this, &cDelay_hlwCH2uT, 0.0f);
+  numBytes += hTable_init(&hTable_ncKDzzLt, 256);
+  numBytes += cVar_init_f(&cVar_AF7niKwq, 0.0f);
+  numBytes += cBinop_init(&cBinop_0qRwCHv8, 150.0f); // __mul
+  numBytes += sVarf_init(&sVarf_mi6YMKiN, 0.3f, 0.0f, false);
+  numBytes += cBinop_init(&cBinop_m5zjVpQA, 0.0f); // __add
+  
+  // schedule a message to trigger all loadbangs via the __hv_init receiver
+  scheduleMessageForReceiver(0xCE5CC65B, msg_initWithBang(HV_MESSAGE_ON_STACK(1), 0));
+}
+
+Heavy_arp_delay_env_pd::~Heavy_arp_delay_env_pd() {
+  hTable_free(&hTable_ncKDzzLt);
+}
+
+HvTable *Heavy_arp_delay_env_pd::getTableForHash(hv_uint32_t tableHash) {switch (tableHash) {
+    case 0x7BAC8768: return &hTable_ncKDzzLt; // del-del
+    default: return nullptr;
+  }
+}
+
+void Heavy_arp_delay_env_pd::scheduleMessageForReceiver(hv_uint32_t receiverHash, HvMessage *m) {
+  switch (receiverHash) {
+    case 0x79853B03: { // Channel_A
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_dWWIm2kL_sendMessage);
+      break;
+    }
+    case 0xE16E1682: { // Channel_B
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_vkMNq8T0_sendMessage);
+      break;
+    }
+    case 0xE72718FC: { // Channel_C
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_LPnclThz_sendMessage);
+      break;
+    }
+    case 0x307C0274: { // Channel_D
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_9w5JwN59_sendMessage);
+      break;
+    }
+    case 0xCE5CC65B: { // __hv_init
+      mq_addMessageByTimestamp(&mq, m, 0, &cReceive_E1RLP07b_sendMessage);
+      break;
+    }
+    default: return;
+  }
+}
+
+int Heavy_arp_delay_env_pd::getParameterInfo(int index, HvParameterInfo *info) {
+  if (info != nullptr) {
+    switch (index) {
+      case 0: {
+        info->name = "Channel_A";
+        info->hash = 0x79853B03;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 1.0f;
+        info->defaultVal = 0.5f;
+        break;
+      }
+      case 1: {
+        info->name = "Channel_B";
+        info->hash = 0xE16E1682;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 1.0f;
+        info->defaultVal = 0.5f;
+        break;
+      }
+      case 2: {
+        info->name = "Channel_C";
+        info->hash = 0xE72718FC;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 1.0f;
+        info->defaultVal = 0.5f;
+        break;
+      }
+      case 3: {
+        info->name = "Channel_D";
+        info->hash = 0x307C0274;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 1.0f;
+        info->defaultVal = 0.5f;
+        break;
+      }
+      default: {
+        info->name = "invalid parameter index";
+        info->hash = 0;
+        info->type = HvParameterType::HV_PARAM_TYPE_PARAMETER_IN;
+        info->minVal = 0.0f;
+        info->maxVal = 0.0f;
+        info->defaultVal = 0.0f;
+        break;
+      }
+    }
+  }
+  return 4;
+}
+
+
+
+/*
+ * Send Function Implementations
+ */
+
+
+void Heavy_arp_delay_env_pd::cVar_YvPEpnUh_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sLine_onMessage(_c, &Context(_c)->sLine_GYQ4PLNT, 0, m, NULL);
+}
+
+void Heavy_arp_delay_env_pd::cVar_eHayjBv6_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 440.0f, 0, m, &cBinop_CwzvBF2s_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cDelay_DYnzHpic_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const m) {
+  cDelay_clearExecutingMessage(&Context(_c)->cDelay_DYnzHpic, m);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_DYnzHpic, 0, m, &cDelay_DYnzHpic_sendMessage);
+  cMsg_BQRg6jNP_sendMessage(_c, 0, m);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_GKFWiStO_sendMessage);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_0XRxEH1C_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cSwitchcase_O5mYhl3b_onMessage(HeavyContextInterface *_c, void *o, int letIn, const HvMessage *const m, void *sendMessage) {
+  switch (msg_getHash(m, 0)) {
+    case 0x0: { // "0.0"
+      cMsg_E4Ec6do0_sendMessage(_c, 0, m);
+      break;
+    }
+    case 0x7A5B032D: { // "stop"
+      cMsg_E4Ec6do0_sendMessage(_c, 0, m);
+      break;
+    }
+    default: {
+      cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_gzZa7okE_sendMessage);
+      break;
+    }
+  }
+}
+
+void Heavy_arp_delay_env_pd::cCast_gzZa7okE_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_E4Ec6do0_sendMessage(_c, 0, m);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_DYnzHpic, 0, m, &cDelay_DYnzHpic_sendMessage);
+  cMsg_BQRg6jNP_sendMessage(_c, 0, m);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_GKFWiStO_sendMessage);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_0XRxEH1C_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cVar_hj1UO5Xy_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_onMessage(_c, &Context(_c)->cBinop_sPNudZ6R, HV_BINOP_MULTIPLY, 0, m, &cBinop_sPNudZ6R_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_xUl3JuzU_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "samplerate");
+  cSystem_onMessage(_c, NULL, 0, m, &cSystem_pBUNmntT_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cSystem_pBUNmntT_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_DIVIDE, 1000.0f, 0, m, &cBinop_d9vmQ0rR_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_sPNudZ6R_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MAX, 1.0f, 0, m, &cBinop_G3zRyasr_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_d9vmQ0rR_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_onMessage(_c, &Context(_c)->cBinop_sPNudZ6R, HV_BINOP_MULTIPLY, 1, m, &cBinop_sPNudZ6R_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_G3zRyasr_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cDelay_onMessage(_c, &Context(_c)->cDelay_DYnzHpic, 2, m, &cDelay_DYnzHpic_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_E4Ec6do0_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "clear");
+  cDelay_onMessage(_c, &Context(_c)->cDelay_DYnzHpic, 0, m, &cDelay_DYnzHpic_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cVar_XXw3dChu_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_onMessage(_c, &Context(_c)->cBinop_m5zjVpQA, HV_BINOP_ADD, 1, m, &cBinop_m5zjVpQA_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cVar_SLtg6rNc_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 1000.0f, 0, m, &cBinop_puVbRaHY_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cVar_YIxdPCGV_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 600.0f, 0, m, &cBinop_9OkU32H1_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_Zqip7Xkd_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "samplerate");
+  cSystem_onMessage(_c, NULL, 0, m, &cSystem_zehWpnU4_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cSystem_zehWpnU4_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_DIVIDE, 1000.0f, 0, m, &cBinop_qGBikGct_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cVar_ssKQAxko_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_qfTfqBM3_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_s01cENlp_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sVarf_onMessage(_c, &Context(_c)->sVarf_0ophamek, m);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_qGBikGct_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sVarf_onMessage(_c, &Context(_c)->sVarf_NKFEO8VS, m);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_qfTfqBM3_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(3);
+  msg_init(m, 3, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "table");
+  msg_setElementToFrom(m, 1, n, 0);
+  msg_setSymbol(m, 2, "size");
+  cSystem_onMessage(_c, NULL, 0, m, &cSystem_4oKrr4xn_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cSystem_4oKrr4xn_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_SUBTRACT, 1.0f, 0, m, &cBinop_s01cENlp_sendMessage);
+  sVarf_onMessage(_c, &Context(_c)->sVarf_TJn8TVJj, m);
+}
+
+void Heavy_arp_delay_env_pd::cDelay_X79tuCf2_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const m) {
+  cDelay_clearExecutingMessage(&Context(_c)->cDelay_X79tuCf2, m);
+  cMsg_ae7TxKOA_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cDelay_hlwCH2uT_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const m) {
+  cDelay_clearExecutingMessage(&Context(_c)->cDelay_hlwCH2uT, m);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_X79tuCf2, 0, m, &cDelay_X79tuCf2_sendMessage);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_hlwCH2uT, 0, m, &cDelay_hlwCH2uT_sendMessage);
+  sTabwrite_onMessage(_c, &Context(_c)->sTabwrite_qOQtZKqp, 1, m, NULL);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_MxJmfWRW_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "samplerate");
+  cSystem_onMessage(_c, NULL, 0, m, &cSystem_rAf0fyDp_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cSystem_rAf0fyDp_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_DIVIDE, 1000.0f, 0, m, &cBinop_8GCNF1V8_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_ET5EQCTg_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_3up8OQvv_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_8GCNF1V8_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 1000.0f, 0, m, &cBinop_ET5EQCTg_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_3up8OQvv_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(2);
+  msg_init(m, 2, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "resize");
+  msg_setElementToFrom(m, 1, n, 0);
+  hTable_onMessage(_c, &Context(_c)->hTable_ncKDzzLt, 0, m, &hTable_ncKDzzLt_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_icWX8ifl_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0,  static_cast<float>(HV_N_SIMD));
+  cDelay_onMessage(_c, &Context(_c)->cDelay_X79tuCf2, 2, m, &cDelay_X79tuCf2_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_ae7TxKOA_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setSymbol(m, 0, "mirror");
+  hTable_onMessage(_c, &Context(_c)->hTable_ncKDzzLt, 0, m, &hTable_ncKDzzLt_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::hTable_ncKDzzLt_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_icWX8ifl_sendMessage(_c, 0, m);
+  cDelay_onMessage(_c, &Context(_c)->cDelay_hlwCH2uT, 2, m, &cDelay_hlwCH2uT_sendMessage);
+  cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_Wzlb1WzU_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cCast_Wzlb1WzU_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cDelay_onMessage(_c, &Context(_c)->cDelay_hlwCH2uT, 0, m, &cDelay_hlwCH2uT_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cVar_AF7niKwq_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sVarf_onMessage(_c, &Context(_c)->sVarf_mi6YMKiN, m);
+}
+
+void Heavy_arp_delay_env_pd::cCast_zvxvkeYa_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_5N2semj0_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cSwitchcase_mEf8Naqe_onMessage(HeavyContextInterface *_c, void *o, int letIn, const HvMessage *const m, void *sendMessage) {
+  switch (msg_getHash(m, 0)) {
+    case 0x3F800000: { // "1.0"
+      cCast_onMessage(_c, HV_CAST_BANG, 0, m, &cCast_zvxvkeYa_sendMessage);
+      break;
+    }
+    default: {
+      break;
+    }
+  }
+}
+
+void Heavy_arp_delay_env_pd::cBinop_0qRwCHv8_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sPhasor_k_onMessage(_c, &Context(_c)->sPhasor_p4d5TEqg, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_CwzvBF2s_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_onMessage(_c, &Context(_c)->cBinop_0qRwCHv8, HV_BINOP_MULTIPLY, 1, m, &cBinop_0qRwCHv8_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_9OkU32H1_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_ADD, 20.0f, 0, m, &cBinop_vc0hK7tw_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_puVbRaHY_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cVar_onMessage(_c, &Context(_c)->cVar_hj1UO5Xy, 0, m, &cVar_hj1UO5Xy_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_m5zjVpQA_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cVar_onMessage(_c, &Context(_c)->cVar_XXw3dChu, 0, m, &cVar_XXw3dChu_sendMessage);
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_GREATER_THAN, 4.0f, 0, m, &cBinop_GJqnOqJV_sendMessage);
+  cBinop_onMessage(_c, &Context(_c)->cBinop_0qRwCHv8, HV_BINOP_MULTIPLY, 0, m, &cBinop_0qRwCHv8_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_vc0hK7tw_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_tM3dKBd6_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cBinop_GJqnOqJV_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cSwitchcase_mEf8Naqe_onMessage(_c, NULL, 0, m, NULL);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_0V4UPj7Z_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(2);
+  msg_init(m, 2, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 0.0f);
+  msg_setFloat(m, 1, 300.0f);
+  sLine_onMessage(_c, &Context(_c)->sLine_GYQ4PLNT, 0, m, NULL);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_jOD5Mj4Q_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 1.0f);
+  cSwitchcase_O5mYhl3b_onMessage(_c, NULL, 0, m, NULL);
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 1000.0f, 0, m, &cBinop_puVbRaHY_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_dmrzMGJf_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 0.3f);
+  sVarf_onMessage(_c, &Context(_c)->sVarf_mi6YMKiN, m);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_hPlGDhkM_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 440.0f);
+  cBinop_onMessage(_c, &Context(_c)->cBinop_0qRwCHv8, HV_BINOP_MULTIPLY, 1, m, &cBinop_0qRwCHv8_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_tM3dKBd6_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(2);
+  msg_init(m, 2, msg_getTimestamp(n));
+  msg_setElementToFrom(m, 0, n, 0);
+  msg_setFloat(m, 1, 20.0f);
+  sLine_onMessage(_c, &Context(_c)->sLine_CPk6VuuC, 0, m, NULL);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_2SqJZJHs_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 220.0f);
+  cMsg_tM3dKBd6_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_5N2semj0_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 0.0f);
+  cVar_onMessage(_c, &Context(_c)->cVar_XXw3dChu, 0, m, &cVar_XXw3dChu_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cMsg_BQRg6jNP_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *const n) {
+  HvMessage *m = nullptr;
+  m = HV_MESSAGE_ON_STACK(1);
+  msg_init(m, 1, msg_getTimestamp(n));
+  msg_setFloat(m, 0, 1.0f);
+  cBinop_onMessage(_c, &Context(_c)->cBinop_m5zjVpQA, HV_BINOP_ADD, 0, m, &cBinop_m5zjVpQA_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cCast_0XRxEH1C_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_0V4UPj7Z_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cCast_GKFWiStO_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cVar_onMessage(_c, &Context(_c)->cVar_YvPEpnUh, 0, m, &cVar_YvPEpnUh_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cReceive_E1RLP07b_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cMsg_xUl3JuzU_sendMessage(_c, 0, m);
+  cVar_onMessage(_c, &Context(_c)->cVar_hj1UO5Xy, 0, m, &cVar_hj1UO5Xy_sendMessage);
+  cMsg_MxJmfWRW_sendMessage(_c, 0, m);
+  cMsg_jOD5Mj4Q_sendMessage(_c, 0, m);
+  cMsg_dmrzMGJf_sendMessage(_c, 0, m);
+  cMsg_hPlGDhkM_sendMessage(_c, 0, m);
+  cMsg_2SqJZJHs_sendMessage(_c, 0, m);
+  cVar_onMessage(_c, &Context(_c)->cVar_ssKQAxko, 0, m, &cVar_ssKQAxko_sendMessage);
+  cMsg_Zqip7Xkd_sendMessage(_c, 0, m);
+}
+
+void Heavy_arp_delay_env_pd::cReceive_LPnclThz_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 600.0f, 0, m, &cBinop_9OkU32H1_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cReceive_dWWIm2kL_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 1000.0f, 0, m, &cBinop_puVbRaHY_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cReceive_vkMNq8T0_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  cBinop_k_onMessage(_c, NULL, HV_BINOP_MULTIPLY, 440.0f, 0, m, &cBinop_CwzvBF2s_sendMessage);
+}
+
+void Heavy_arp_delay_env_pd::cReceive_9w5JwN59_sendMessage(HeavyContextInterface *_c, int letIn, const HvMessage *m) {
+  sVarf_onMessage(_c, &Context(_c)->sVarf_mi6YMKiN, m);
+}
+
+
+
+
+/*
+ * Context Process Implementation
+ */
+
+int Heavy_arp_delay_env_pd::process(float **inputBuffers, float **outputBuffers, int n) {
+  while (hLp_hasData(&inQueue)) {
+    hv_uint32_t numBytes = 0;
+    ReceiverMessagePair *p = reinterpret_cast<ReceiverMessagePair *>(hLp_getReadBuffer(&inQueue, &numBytes));
+    hv_assert(numBytes >= sizeof(ReceiverMessagePair));
+    scheduleMessageForReceiver(p->receiverHash, &p->msg);
+    hLp_consume(&inQueue);
+  }
+  const int n4 = n & ~HV_N_SIMD_MASK; // ensure that the block size is a multiple of HV_N_SIMD
+
+  // temporary signal vars
+  hv_bufferf_t Bf0, Bf1, Bf2, Bf3, Bf4, Bf5, Bf6;
+  hv_bufferi_t Bi0, Bi1;
+
+  // input and output vars
+  hv_bufferf_t O0, O1;
+
+  // declare and init the zero buffer
+  hv_bufferf_t ZERO; __hv_zero_f(VOf(ZERO));
+
+  hv_uint32_t nextBlock = blockStartTimestamp;
+  for (int n = 0; n < n4; n += HV_N_SIMD) {
+
+    // process all of the messages for this block
+    nextBlock += HV_N_SIMD;
+    while (mq_hasMessageBefore(&mq, nextBlock)) {
+      MessageNode *const node = mq_peek(&mq);
+      node->sendMessage(this, node->let, node->m);
+      mq_pop(&mq);
+    }
+
+    
+
+    // zero output buffers
+    __hv_zero_f(VOf(O0));
+    __hv_zero_f(VOf(O1));
+
+    // process all signal functions
+    __hv_line_f(&sLine_CPk6VuuC, VOf(Bf0));
+    __hv_tabhead_f(&sTabhead_Ccf3pWD1, VOf(Bf1));
+    __hv_var_k_f_r(VOf(Bf2), -1.0f, -2.0f, -3.0f, -4.0f, -5.0f, -6.0f, -7.0f, -8.0f);
+    __hv_add_f(VIf(Bf1), VIf(Bf2), VOf(Bf2));
+    __hv_varread_f(&sVarf_NKFEO8VS, VOf(Bf1));
+    __hv_mul_f(VIf(Bf0), VIf(Bf1), VOf(Bf1));
+    __hv_varread_f(&sVarf_0ophamek, VOf(Bf0));
+    __hv_min_f(VIf(Bf1), VIf(Bf0), VOf(Bf0));
+    __hv_zero_f(VOf(Bf1));
+    __hv_max_f(VIf(Bf0), VIf(Bf1), VOf(Bf1));
+    __hv_sub_f(VIf(Bf2), VIf(Bf1), VOf(Bf1));
+    __hv_floor_f(VIf(Bf1), VOf(Bf2));
+    __hv_varread_f(&sVarf_TJn8TVJj, VOf(Bf0));
+    __hv_zero_f(VOf(Bf3));
+    __hv_lt_f(VIf(Bf2), VIf(Bf3), VOf(Bf3));
+    __hv_and_f(VIf(Bf0), VIf(Bf3), VOf(Bf3));
+    __hv_add_f(VIf(Bf2), VIf(Bf3), VOf(Bf3));
+    __hv_cast_fi(VIf(Bf3), VOi(Bi0));
+    __hv_var_k_i(VOi(Bi1), 1, 1, 1, 1, 1, 1, 1, 1);
+    __hv_add_i(VIi(Bi0), VIi(Bi1), VOi(Bi1));
+    __hv_tabread_if(&sTabread_AIPPIP2p, VIi(Bi1), VOf(Bf3));
+    __hv_tabread_if(&sTabread_OR6AChVH, VIi(Bi0), VOf(Bf0));
+    __hv_sub_f(VIf(Bf3), VIf(Bf0), VOf(Bf3));
+    __hv_sub_f(VIf(Bf1), VIf(Bf2), VOf(Bf2));
+    __hv_fma_f(VIf(Bf3), VIf(Bf2), VIf(Bf0), VOf(Bf0));
+    __hv_varread_f(&sVarf_mi6YMKiN, VOf(Bf2));
+    __hv_phasor_k_f(&sPhasor_p4d5TEqg, VOf(Bf3));
+    __hv_var_k_f(VOf(Bf1), 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f);
+    __hv_sub_f(VIf(Bf3), VIf(Bf1), VOf(Bf1));
+    __hv_abs_f(VIf(Bf1), VOf(Bf1));
+    __hv_var_k_f(VOf(Bf3), 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f, 0.25f);
+    __hv_sub_f(VIf(Bf1), VIf(Bf3), VOf(Bf3));
+    __hv_var_k_f(VOf(Bf1), 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f, 6.283185307179586f);
+    __hv_mul_f(VIf(Bf3), VIf(Bf1), VOf(Bf1));
+    __hv_mul_f(VIf(Bf1), VIf(Bf1), VOf(Bf3));
+    __hv_mul_f(VIf(Bf1), VIf(Bf3), VOf(Bf4));
+    __hv_mul_f(VIf(Bf4), VIf(Bf3), VOf(Bf3));
+    __hv_var_k_f(VOf(Bf5), 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f, 0.007833333333333f);
+    __hv_var_k_f(VOf(Bf6), -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f, -0.166666666666667f);
+    __hv_fma_f(VIf(Bf4), VIf(Bf6), VIf(Bf1), VOf(Bf1));
+    __hv_fma_f(VIf(Bf3), VIf(Bf5), VIf(Bf1), VOf(Bf1));
+    __hv_line_f(&sLine_GYQ4PLNT, VOf(Bf5));
+    __hv_mul_f(VIf(Bf1), VIf(Bf5), VOf(Bf5));
+    __hv_fma_f(VIf(Bf0), VIf(Bf2), VIf(Bf5), VOf(Bf2));
+    __hv_tabwrite_f(&sTabwrite_qOQtZKqp, VIf(Bf2));
+    __hv_add_f(VIf(Bf5), VIf(Bf0), VOf(Bf0));
+    __hv_var_k_f(VOf(Bf5), 0.2f, 0.2f, 0.2f, 0.2f, 0.2f, 0.2f, 0.2f, 0.2f);
+    __hv_mul_f(VIf(Bf0), VIf(Bf5), VOf(Bf5));
+    __hv_add_f(VIf(Bf5), VIf(O0), VOf(O0));
+    __hv_add_f(VIf(Bf5), VIf(O1), VOf(O1));
+
+    // save output vars to output buffer
+    __hv_store_f(outputBuffers[0]+n, VIf(O0));
+    __hv_store_f(outputBuffers[1]+n, VIf(O1));
+  }
+
+  blockStartTimestamp = nextBlock;
+
+  return n4; // return the number of frames processed
+}
+
+int Heavy_arp_delay_env_pd::processInline(float *inputBuffers, float *outputBuffers, int n4) {
+  hv_assert(!(n4 & HV_N_SIMD_MASK)); // ensure that n4 is a multiple of HV_N_SIMD
+
+  // define the heavy input buffer for 0 channel(s)
+  float **const bIn = NULL;
+
+  // define the heavy output buffer for 2 channel(s)
+  float **const bOut = reinterpret_cast<float **>(hv_alloca(2*sizeof(float *)));
+  bOut[0] = outputBuffers+(0*n4);
+  bOut[1] = outputBuffers+(1*n4);
+
+  int n = process(bIn, bOut, n4);
+  return n;
+}
+
+int Heavy_arp_delay_env_pd::processInlineInterleaved(float *inputBuffers, float *outputBuffers, int n4) {
+  hv_assert(n4 & ~HV_N_SIMD_MASK); // ensure that n4 is a multiple of HV_N_SIMD
+
+  // define the heavy input buffer for 0 channel(s), uninterleave
+  float *const bIn = NULL;
+
+  // define the heavy output buffer for 2 channel(s)
+  float *const bOut = reinterpret_cast<float *>(hv_alloca(2*n4*sizeof(float)));
+
+  int n = processInline(bIn, bOut, n4);
+
+  // interleave the heavy output into the output buffer
+  #if HV_SIMD_AVX
+  for (int i = 0, j = 0; j < n4; j += 8, i += 16) {
+    __m256 x = _mm256_load_ps(bOut+j);    // LLLLLLLL
+    __m256 y = _mm256_load_ps(bOut+n4+j); // RRRRRRRR
+    __m256 a = _mm256_unpacklo_ps(x, y);  // LRLRLRLR
+    __m256 b = _mm256_unpackhi_ps(x, y);  // LRLRLRLR
+    _mm256_store_ps(outputBuffers+i, a);
+    _mm256_store_ps(outputBuffers+8+i, b);
+  }
+  #elif HV_SIMD_SSE
+  for (int i = 0, j = 0; j < n4; j += 4, i += 8) {
+    __m128 x = _mm_load_ps(bOut+j);    // LLLL
+    __m128 y = _mm_load_ps(bOut+n4+j); // RRRR
+    __m128 a = _mm_unpacklo_ps(x, y);  // LRLR
+    __m128 b = _mm_unpackhi_ps(x, y);  // LRLR
+    _mm_store_ps(outputBuffers+i, a);
+    _mm_store_ps(outputBuffers+4+i, b);
+  }
+  #elif HV_SIMD_NEON
+  // https://community.arm.com/groups/processors/blog/2012/03/13/coding-for-neon--part-5-rearranging-vectors
+  for (int i = 0, j = 0; j < n4; j += 4, i += 8) {
+    float32x4_t x = vld1q_f32(bOut+j);
+    float32x4_t y = vld1q_f32(bOut+n4+j);
+    float32x4x2_t z = {x, y};
+    vst2q_f32(outputBuffers+i, z); // interleave and store
+  }
+  #else // HV_SIMD_NONE
+  for (int i = 0; i < 2; ++i) {
+    for (int j = 0; j < n4; ++j) {
+      outputBuffers[i+2*j] = bOut[i*n4+j];
+    }
+  }
+  #endif
+
+  return n;
+}

distrho/source/Heavy_arp_delay_env_pd.h

@@ -0,0 +1,78 @@
+/**
+ * Copyright (c) 2021 Enzien Audio, Ltd.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions, and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the phrase "powered by heavy",
+ *    the heavy logo, and a hyperlink to https://enzienaudio.com, all in a visible
+ *    form.
+ * 
+ *   2.1 If the Application is distributed in a store system (for example,
+ *       the Apple "App Store" or "Google Play"), the phrase "powered by heavy"
+ *       shall be included in the app description or the copyright text as well as
+ *       the in the app itself. The heavy logo will shall be visible in the app
+ *       itself as well.
+ * 
+ * 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 HOLDER 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.
+ * 
+ */
+
+#ifndef _HEAVY_ARP_DELAY_ENV_PD_H_
+#define _HEAVY_ARP_DELAY_ENV_PD_H_
+
+#include "HvHeavy.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if HV_APPLE
+#pragma mark - Heavy Context
+#endif
+
+typedef enum {
+  HV_ARP_DELAY_ENV_PD_PARAM_IN_CHANNEL_A = 0x79853B03, // Channel_A
+  HV_ARP_DELAY_ENV_PD_PARAM_IN_CHANNEL_B = 0xE16E1682, // Channel_B
+  HV_ARP_DELAY_ENV_PD_PARAM_IN_CHANNEL_C = 0xE72718FC, // Channel_C
+  HV_ARP_DELAY_ENV_PD_PARAM_IN_CHANNEL_D = 0x307C0274, // Channel_D
+} Hv_arp_delay_env_pd_ParameterIn;
+
+
+/**
+ * Creates a new patch instance.
+ * Sample rate should be positive and in Hertz, e.g. 44100.0.
+ */
+HeavyContextInterface *hv_arp_delay_env_pd_new(double sampleRate);
+
+/**
+ * Creates a new patch instance.
+ * @param sampleRate  Sample rate should be positive (> 0) and in Hertz, e.g. 48000.0.
+ * @param poolKb  Pool size is in kilobytes, and determines the maximum amount of memory
+ *   allocated to messages at any time. By default this is 10 KB.
+ * @param inQueueKb  The size of the input message queue in kilobytes. It determines the
+ *   amount of memory dedicated to holding scheduled messages between calls to
+ *   process(). Default is 2 KB.
+ * @param outQueueKb  The size of the output message queue in kilobytes. It determines the
+ *   amount of memory dedicated to holding scheduled messages to the default sendHook.
+ *   See getNextSentMessage() for info on accessing these messages. Default is 0 KB.
+ */
+HeavyContextInterface *hv_arp_delay_env_pd_new_with_options(double sampleRate, int poolKb, int inQueueKb, int outQueueKb);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_ARP_DELAY_ENV_PD_H_

distrho/source/Heavy_arp_delay_env_pd.hpp

@@ -0,0 +1,181 @@
+/**
+ * Copyright (c) 2021 Enzien Audio, Ltd.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions, and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the phrase "powered by heavy",
+ *    the heavy logo, and a hyperlink to https://enzienaudio.com, all in a visible
+ *    form.
+ * 
+ *   2.1 If the Application is distributed in a store system (for example,
+ *       the Apple "App Store" or "Google Play"), the phrase "powered by heavy"
+ *       shall be included in the app description or the copyright text as well as
+ *       the in the app itself. The heavy logo will shall be visible in the app
+ *       itself as well.
+ * 
+ * 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 HOLDER 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.
+ * 
+ */
+
+#ifndef _HEAVY_CONTEXT_ARP_DELAY_ENV_PD_HPP_
+#define _HEAVY_CONTEXT_ARP_DELAY_ENV_PD_HPP_
+
+// object includes
+#include "HeavyContext.hpp"
+#include "HvControlCast.h"
+#include "HvControlVar.h"
+#include "HvControlDelay.h"
+#include "HvControlSystem.h"
+#include "HvControlBinop.h"
+#include "HvTable.h"
+#include "HvSignalTabwrite.h"
+#include "HvSignalVar.h"
+#include "HvSignalTabread.h"
+#include "HvMath.h"
+#include "HvSignalPhasor.h"
+#include "HvSignalLine.h"
+
+class Heavy_arp_delay_env_pd : public HeavyContext {
+
+ public:
+  Heavy_arp_delay_env_pd(double sampleRate, int poolKb=10, int inQueueKb=2, int outQueueKb=0);
+  ~Heavy_arp_delay_env_pd();
+
+  const char *getName() override { return "arp_delay_env_pd"; }
+  int getNumInputChannels() override { return 0; }
+  int getNumOutputChannels() override { return 2; }
+
+  int process(float **inputBuffers, float **outputBuffer, int n) override;
+  int processInline(float *inputBuffers, float *outputBuffer, int n) override;
+  int processInlineInterleaved(float *inputBuffers, float *outputBuffer, int n) override;
+
+  int getParameterInfo(int index, HvParameterInfo *info) override;
+  struct Parameter {
+    struct In {
+      enum ParameterIn : hv_uint32_t {
+        CHANNEL_A = 0x79853B03, // Channel_A
+        CHANNEL_B = 0xE16E1682, // Channel_B
+        CHANNEL_C = 0xE72718FC, // Channel_C
+        CHANNEL_D = 0x307C0274, // Channel_D
+      };
+    };
+  };
+
+ private:
+  HvTable *getTableForHash(hv_uint32_t tableHash) override;
+  void scheduleMessageForReceiver(hv_uint32_t receiverHash, HvMessage *m) override;
+
+  // static sendMessage functions
+  static void cVar_YvPEpnUh_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_eHayjBv6_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cDelay_DYnzHpic_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSwitchcase_O5mYhl3b_onMessage(HeavyContextInterface *, void *, int letIn, const HvMessage *const, void *);
+  static void cCast_gzZa7okE_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_hj1UO5Xy_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_xUl3JuzU_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSystem_pBUNmntT_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_sPNudZ6R_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_d9vmQ0rR_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_G3zRyasr_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_E4Ec6do0_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_XXw3dChu_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_SLtg6rNc_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_YIxdPCGV_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_Zqip7Xkd_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSystem_zehWpnU4_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_ssKQAxko_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_s01cENlp_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_qGBikGct_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_qfTfqBM3_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSystem_4oKrr4xn_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cDelay_X79tuCf2_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cDelay_hlwCH2uT_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_MxJmfWRW_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSystem_rAf0fyDp_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_ET5EQCTg_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_8GCNF1V8_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_3up8OQvv_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_icWX8ifl_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_ae7TxKOA_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void hTable_ncKDzzLt_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cCast_Wzlb1WzU_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cVar_AF7niKwq_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cCast_zvxvkeYa_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cSwitchcase_mEf8Naqe_onMessage(HeavyContextInterface *, void *, int letIn, const HvMessage *const, void *);
+  static void cBinop_0qRwCHv8_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_CwzvBF2s_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_9OkU32H1_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_puVbRaHY_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_m5zjVpQA_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_vc0hK7tw_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cBinop_GJqnOqJV_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_0V4UPj7Z_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_jOD5Mj4Q_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_dmrzMGJf_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_hPlGDhkM_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_tM3dKBd6_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_2SqJZJHs_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_5N2semj0_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cMsg_BQRg6jNP_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cCast_0XRxEH1C_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cCast_GKFWiStO_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_E1RLP07b_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_LPnclThz_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_dWWIm2kL_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_vkMNq8T0_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+  static void cReceive_9w5JwN59_sendMessage(HeavyContextInterface *, int, const HvMessage *);
+
+  // objects
+  SignalLine sLine_CPk6VuuC;
+  SignalTabhead sTabhead_Ccf3pWD1;
+  SignalTabread sTabread_AIPPIP2p;
+  SignalTabread sTabread_OR6AChVH;
+  SignalPhasor sPhasor_p4d5TEqg;
+  SignalLine sLine_GYQ4PLNT;
+  SignalTabwrite sTabwrite_qOQtZKqp;
+  ControlVar cVar_YvPEpnUh;
+  ControlVar cVar_eHayjBv6;
+  ControlDelay cDelay_DYnzHpic;
+  ControlVar cVar_hj1UO5Xy;
+  ControlBinop cBinop_sPNudZ6R;
+  ControlBinop cBinop_d9vmQ0rR;
+  ControlBinop cBinop_G3zRyasr;
+  ControlVar cVar_XXw3dChu;
+  ControlVar cVar_SLtg6rNc;
+  ControlVar cVar_YIxdPCGV;
+  ControlVar cVar_ssKQAxko;
+  ControlBinop cBinop_s01cENlp;
+  ControlBinop cBinop_qGBikGct;
+  SignalVarf sVarf_NKFEO8VS;
+  SignalVarf sVarf_TJn8TVJj;
+  SignalVarf sVarf_0ophamek;
+  ControlDelay cDelay_X79tuCf2;
+  ControlDelay cDelay_hlwCH2uT;
+  ControlBinop cBinop_ET5EQCTg;
+  ControlBinop cBinop_8GCNF1V8;
+  HvTable hTable_ncKDzzLt;
+  ControlVar cVar_AF7niKwq;
+  ControlBinop cBinop_0qRwCHv8;
+  ControlBinop cBinop_CwzvBF2s;
+  ControlBinop cBinop_9OkU32H1;
+  ControlBinop cBinop_puVbRaHY;
+  SignalVarf sVarf_mi6YMKiN;
+  ControlBinop cBinop_m5zjVpQA;
+  ControlBinop cBinop_vc0hK7tw;
+  ControlBinop cBinop_GJqnOqJV;
+};
+
+#endif // _HEAVY_CONTEXT_ARP_DELAY_ENV_PD_HPP_

distrho/source/HvControlBinop.c

@@ -0,0 +1,100 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvControlBinop.h"
+
+hv_size_t cBinop_init(ControlBinop *o, float k) {
+  o->k = k;
+  return 0;
+}
+
+static float cBinop_perform_op(BinopType op, float f, float k) {
+  switch (op) {
+    case HV_BINOP_ADD: return f + k;
+    case HV_BINOP_SUBTRACT: return f - k;
+    case HV_BINOP_MULTIPLY: return f * k;
+    case HV_BINOP_DIVIDE: return (k != 0.0f) ? (f/k) : 0.0f;
+    case HV_BINOP_INT_DIV: {
+      const int ik = (int) k;
+      return (ik != 0) ? (float) (((int) f) / ik) : 0.0f;
+    }
+    case HV_BINOP_MOD_BIPOLAR: {
+      const int ik = (int) k;
+      return (ik != 0) ? (float) (((int) f) % ik) : 0.0f;
+    }
+    case HV_BINOP_MOD_UNIPOLAR: {
+      f = (k == 0.0f) ? 0.0f : (float) ((int) f % (int) k);
+      return (f < 0.0f) ? f + hv_abs_f(k) : f;
+    }
+    case HV_BINOP_BIT_LEFTSHIFT: return (float) (((int) f) << ((int) k));
+    case HV_BINOP_BIT_RIGHTSHIFT: return (float) (((int) f) >> ((int) k));
+    case HV_BINOP_BIT_AND: return (float) ((int) f & (int) k);
+    case HV_BINOP_BIT_XOR: return (float) ((int) f ^ (int) k);
+    case HV_BINOP_BIT_OR: return (float) ((int) f | (int) k);
+    case HV_BINOP_EQ: return (f == k) ? 1.0f : 0.0f;
+    case HV_BINOP_NEQ: return (f != k) ? 1.0f : 0.0f;
+    case HV_BINOP_LOGICAL_AND: return ((f == 0.0f) || (k == 0.0f)) ? 0.0f : 1.0f;
+    case HV_BINOP_LOGICAL_OR: return ((f == 0.0f) && (k == 0.0f)) ? 0.0f : 1.0f;
+    case HV_BINOP_LESS_THAN: return (f < k) ? 1.0f : 0.0f;
+    case HV_BINOP_LESS_THAN_EQL: return (f <= k) ? 1.0f : 0.0f;
+    case HV_BINOP_GREATER_THAN: return (f > k) ? 1.0f : 0.0f;
+    case HV_BINOP_GREATER_THAN_EQL: return (f >= k) ? 1.0f : 0.0f;
+    case HV_BINOP_MAX: return hv_max_f(f, k);
+    case HV_BINOP_MIN: return hv_min_f(f, k);
+    case HV_BINOP_POW: return (f > 0.0f) ? hv_pow_f(f, k) : 0.0f;
+    case HV_BINOP_ATAN2: return ((f == 0.0f) && (k == 0.0f)) ? 0.0f : hv_atan2_f(f, k);
+    default: return 0.0f;
+  }
+}
+
+void cBinop_onMessage(HeavyContextInterface *_c, ControlBinop *o, BinopType op, int letIn,
+    const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  switch (letIn) {
+    case 0: {
+      if (msg_isFloat(m, 0)) {
+        // Note(joe): supporting Pd's ability to perform operations of packs
+        // of floats is likely to not be supported in the future.
+        if (msg_isFloat(m, 1)) o->k = msg_getFloat(m, 1);
+        HvMessage *n = HV_MESSAGE_ON_STACK(1);
+        float f = cBinop_perform_op(op, msg_getFloat(m, 0), o->k);
+        msg_initWithFloat(n, msg_getTimestamp(m), f);
+        sendMessage(_c, 0, n);
+      }
+      break;
+    }
+    case 1: {
+      if (msg_isFloat(m, 0)) {
+        o->k = msg_getFloat(m, 0);
+      }
+      break;
+    }
+    default: break;
+  }
+}
+
+void cBinop_k_onMessage(HeavyContextInterface *_c, void *o, BinopType op, float k,
+    int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  if (msg_isFloat(m, 0)) {
+    // NOTE(mhroth): Heavy does not support sending bangs to binop objects to return the previous output
+    float f = (msg_isFloat(m, 1)) ? msg_getFloat(m, 1) : k;
+    HvMessage *n = HV_MESSAGE_ON_STACK(1);
+    f = cBinop_perform_op(op, msg_getFloat(m, 0), f);
+    msg_initWithFloat(n, msg_getTimestamp(m), f);
+    sendMessage(_c, 0, n);
+  }
+}

distrho/source/HvControlBinop.h

@@ -0,0 +1,71 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTROL_BINOP_H_
+#define _HEAVY_CONTROL_BINOP_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum BinopType {
+  HV_BINOP_ADD,
+  HV_BINOP_SUBTRACT,
+  HV_BINOP_MULTIPLY,
+  HV_BINOP_DIVIDE,
+  HV_BINOP_INT_DIV,
+  HV_BINOP_MOD_BIPOLAR,
+  HV_BINOP_MOD_UNIPOLAR,
+  HV_BINOP_BIT_LEFTSHIFT,
+  HV_BINOP_BIT_RIGHTSHIFT,
+  HV_BINOP_BIT_AND,
+  HV_BINOP_BIT_XOR,
+  HV_BINOP_BIT_OR,
+  HV_BINOP_EQ,
+  HV_BINOP_NEQ,
+  HV_BINOP_LOGICAL_AND,
+  HV_BINOP_LOGICAL_OR,
+  HV_BINOP_LESS_THAN,
+  HV_BINOP_LESS_THAN_EQL,
+  HV_BINOP_GREATER_THAN,
+  HV_BINOP_GREATER_THAN_EQL,
+  HV_BINOP_MAX,
+  HV_BINOP_MIN,
+  HV_BINOP_POW,
+  HV_BINOP_ATAN2
+} BinopType;
+
+typedef struct ControlBinop {
+  float k;
+} ControlBinop;
+
+hv_size_t cBinop_init(ControlBinop *o, float k);
+
+void cBinop_onMessage(HeavyContextInterface *_c, ControlBinop *o, BinopType op, int letIn,
+    const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+void cBinop_k_onMessage(HeavyContextInterface *_c, void *o, BinopType op, float k,
+    int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_CONTROL_BINOP_H_

distrho/source/HvControlCast.c

@@ -0,0 +1,60 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvControlCast.h"
+
+void cCast_onMessage(HeavyContextInterface *_c, CastType castType, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  switch (castType) {
+    case HV_CAST_BANG: {
+      HvMessage *n = HV_MESSAGE_ON_STACK(1);
+      msg_initWithBang(n, msg_getTimestamp(m));
+      sendMessage(_c, 0, n);
+      break;
+    }
+    case HV_CAST_FLOAT: {
+      if (msg_isFloat(m, 0)) {
+        HvMessage *n = HV_MESSAGE_ON_STACK(1);
+        msg_initWithFloat(n, msg_getTimestamp(m), msg_getFloat(m, 0));
+        sendMessage(_c, 0, n);
+      }
+      break;
+    }
+    case HV_CAST_SYMBOL: {
+      switch (msg_getType(m, 0)) {
+        case HV_MSG_BANG: {
+          HvMessage *n = HV_MESSAGE_ON_STACK(1);
+          msg_initWithSymbol(n, msg_getTimestamp(m), "bang");
+          sendMessage(_c, 0, n);
+          break;
+        }
+        case HV_MSG_FLOAT: {
+          HvMessage *n = HV_MESSAGE_ON_STACK(1);
+          msg_initWithSymbol(n, msg_getTimestamp(m), "float");
+          sendMessage(_c, 0, n);
+          break;
+        }
+        case HV_MSG_SYMBOL: {
+          sendMessage(_c, 0, m);
+          break;
+        }
+        default: return;
+      }
+      break;
+    }
+    default: return;
+  }
+}

distrho/source/HvControlCast.h

@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTROL_CAST_H_
+#define _HEAVY_CONTROL_CAST_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum CastType {
+  HV_CAST_BANG,
+  HV_CAST_FLOAT,
+  HV_CAST_SYMBOL
+} CastType;
+
+void cCast_onMessage(HeavyContextInterface *_c, CastType castType, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_CONTROL_CAST_H_

distrho/source/HvControlDelay.c

@@ -0,0 +1,92 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvControlDelay.h"
+
+hv_size_t cDelay_init(HeavyContextInterface *_c, ControlDelay *o, float delayMs) {
+  o->delay = hv_millisecondsToSamples(_c, delayMs);
+  hv_memclear(o->msgs, __HV_DELAY_MAX_MESSAGES*sizeof(HvMessage *));
+  return 0;
+}
+
+void cDelay_onMessage(HeavyContextInterface *_c, ControlDelay *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  switch (letIn) {
+    case 0: {
+      if (msg_compareSymbol(m, 0, "flush")) {
+        // send all messages immediately
+        for (int i = 0; i < __HV_DELAY_MAX_MESSAGES; i++) {
+          HvMessage *n = o->msgs[i];
+          if (n != NULL) {
+            msg_setTimestamp(n, msg_getTimestamp(m)); // update the timestamp to now
+            sendMessage(_c, 0, n); // send the message
+            hv_cancelMessage(_c, n, sendMessage); // then clear it
+            // NOTE(mhroth): there may be a problem here if a flushed message causes a clear message to return
+            // to this object in the same step
+          }
+        }
+        hv_memclear(o->msgs, __HV_DELAY_MAX_MESSAGES*sizeof(HvMessage *));
+      } else if (msg_compareSymbol(m, 0, "clear")) {
+        // cancel (clear) all (pending) messages
+        for (int i = 0; i < __HV_DELAY_MAX_MESSAGES; i++) {
+          HvMessage *n = o->msgs[i];
+          if (n != NULL) {
+            hv_cancelMessage(_c, n, sendMessage);
+          }
+        }
+        hv_memclear(o->msgs, __HV_DELAY_MAX_MESSAGES*sizeof(HvMessage *));
+      } else {
+        hv_uint32_t ts = msg_getTimestamp(m);
+        msg_setTimestamp((HvMessage *) m, ts+o->delay); // update the timestamp to set the delay
+        int i;
+        for (i = 0; i < __HV_DELAY_MAX_MESSAGES; i++) {
+          if (o->msgs[i] == NULL) {
+            o->msgs[i] = hv_scheduleMessageForObject(_c, m, sendMessage, 0);
+            break;
+          }
+        }
+        hv_assert((i < __HV_DELAY_MAX_MESSAGES) && // scheduled message limit reached
+            "[__delay] cannot track any more messages. Try increasing the size of __HV_DELAY_MAX_MESSAGES.");
+        msg_setTimestamp((HvMessage *) m, ts); // return to the original timestamp
+      }
+      break;
+    }
+    case 1: {
+      if (msg_isFloat(m,0)) {
+        // set delay in milliseconds (cannot be negative!)
+        o->delay = hv_millisecondsToSamples(_c, msg_getFloat(m,0));
+      }
+      break;
+    }
+    case 2: {
+      if (msg_isFloat(m,0)) {
+        // set delay in samples (cannot be negative!)
+        o->delay = (hv_uint32_t) hv_max_f(0.0f, msg_getFloat(m,0));
+      }
+      break;
+    }
+    default: break;
+  }
+}
+
+void cDelay_clearExecutingMessage(ControlDelay *o, const HvMessage *m) {
+  for (int i = 0; i < __HV_DELAY_MAX_MESSAGES; ++i) {
+    if (o->msgs[i] == m) {
+      o->msgs[i] = NULL;
+      break;
+    }
+  }
+}

distrho/source/HvControlDelay.h

@@ -0,0 +1,44 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTROL_DELAY_H_
+#define _HEAVY_CONTROL_DELAY_H_
+
+#define __HV_DELAY_MAX_MESSAGES 8
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct ControlDelay {
+  hv_uint32_t delay; // delay in samples
+  HvMessage *msgs[__HV_DELAY_MAX_MESSAGES];
+} ControlDelay;
+
+hv_size_t cDelay_init(HeavyContextInterface *_c, ControlDelay *o, float delayMs);
+
+void cDelay_onMessage(HeavyContextInterface *_c, ControlDelay *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+void cDelay_clearExecutingMessage(ControlDelay *o, const HvMessage *m);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_CONTROL_DELAY_H_

distrho/source/HvControlSlice.c

@@ -0,0 +1,62 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvControlSlice.h"
+
+hv_size_t cSlice_init(ControlSlice *o, int i, int n) {
+  o->i = i;
+  o->n = n;
+  return 0;
+}
+
+void cSlice_onMessage(HeavyContextInterface *_c, ControlSlice *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  switch (letIn) {
+    case 0: {
+      // if the start point is greater than the number of elements in the source message, do nothing
+      if (o->i < msg_getNumElements(m)) {
+        int x = msg_getNumElements(m) - o->i; // number of elements in the new message
+        if (o->n > 0) x = hv_min_i(x, o->n);
+        HvMessage *n = HV_MESSAGE_ON_STACK(x);
+        msg_init(n, x, msg_getTimestamp(m));
+        hv_memcpy(&n->elem, &m->elem+o->i, x*sizeof(Element));
+        sendMessage(_c, 0, n);
+      } else {
+        // if nothing can be sliced, send a bang out of the right outlet
+        HvMessage *n = HV_MESSAGE_ON_STACK(1);
+        msg_initWithBang(n, msg_getTimestamp(m));
+        sendMessage(_c, 1, n);
+      }
+      break;
+    }
+    case 1: {
+      if (msg_isFloat(m,0)) {
+        o->i = (int) msg_getFloat(m,0);
+        if (msg_isFloat(m,1)) {
+          o->n = (int) msg_getFloat(m,1);
+        }
+      }
+      break;
+    }
+    case 2: {
+      if (msg_isFloat(m,0)) {
+        o->n = (int) msg_getFloat(m,0);
+      }
+      break;
+    }
+    default: break;
+  }
+}

distrho/source/HvControlSlice.h

@@ -0,0 +1,40 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTROL_SLICE_H_
+#define _HEAVY_CONTROL_SLICE_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct ControlSlice {
+  int i; // start index
+  int n; // length of slice
+} ControlSlice;
+
+hv_size_t cSlice_init(ControlSlice *o, int i, int n);
+
+void cSlice_onMessage(HeavyContextInterface *_c, ControlSlice *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_CONTROL_SLICE_H_

distrho/source/HvControlSystem.c

@@ -0,0 +1,46 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvControlSystem.h"
+
+void cSystem_onMessage(HeavyContextInterface *_c, void *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+
+  HvMessage *n = HV_MESSAGE_ON_STACK(1);
+  if (msg_compareSymbol(m, 0, "samplerate")) {
+
+    msg_initWithFloat(n, msg_getTimestamp(m), (float) hv_getSampleRate(_c));
+  } else if (msg_compareSymbol(m, 0, "numInputChannels")) {
+    msg_initWithFloat(n, msg_getTimestamp(m), (float) hv_getNumInputChannels(_c));
+  } else if (msg_compareSymbol(m, 0, "numOutputChannels")) {
+    msg_initWithFloat(n, msg_getTimestamp(m), (float) hv_getNumOutputChannels(_c));
+  } else if (msg_compareSymbol(m, 0, "currentTime")) {
+    msg_initWithFloat(n, msg_getTimestamp(m), (float) msg_getTimestamp(m));
+  } else if (msg_compareSymbol(m, 0, "table")) {
+    // NOTE(mhroth): no need to check message format for symbols as table lookup will fail otherwise
+    HvTable *table = hv_table_get(_c, msg_getHash(m,1));
+    if (table != NULL) {
+      if (msg_compareSymbol(m, 2, "length")) {
+        msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getLength(table));
+      } else if (msg_compareSymbol(m, 2, "size")) {
+        msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getSize(table));
+      } else if (msg_compareSymbol(m, 2, "head")) {
+        msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getHead(table));
+      } else return;
+    } else return;
+  } else return;
+  sendMessage(_c, 0, n);
+}

distrho/source/HvControlSystem.h

@@ -0,0 +1,33 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTROL_SYSTEM_H_
+#define _HEAVY_CONTROL_SYSTEM_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void cSystem_onMessage(HeavyContextInterface *_c, void *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_CONTROL_SYSTEM_H_

distrho/source/HvControlVar.c

@@ -0,0 +1,83 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvControlVar.h"
+
+hv_size_t cVar_init_f(ControlVar *o, float k) {
+  o->e.type = HV_MSG_FLOAT;
+  o->e.data.f = k;
+  return 0;
+}
+
+hv_size_t cVar_init_s(ControlVar *o, const char *s) {
+  o->e.type = HV_MSG_HASH;
+  o->e.data.h = hv_string_to_hash(s);
+  return 0;
+}
+
+void cVar_free(ControlVar *o) {
+  // nothing to do
+}
+
+void cVar_onMessage(HeavyContextInterface *_c, ControlVar *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  switch (letIn) {
+    case 0: {
+      switch (msg_getType(m,0)) {
+        case HV_MSG_BANG: {
+          HvMessage *n = HV_MESSAGE_ON_STACK(1);
+          if (o->e.type == HV_MSG_FLOAT) msg_initWithFloat(n, msg_getTimestamp(m), o->e.data.f);
+          else if (o->e.type == HV_MSG_HASH) msg_initWithHash(n, msg_getTimestamp(m), o->e.data.h);
+          else return;
+          sendMessage(_c, 0, n);
+          break;
+        }
+        case HV_MSG_FLOAT: {
+          o->e.type = HV_MSG_FLOAT;
+          o->e.data.f = msg_getFloat(m,0);
+          sendMessage(_c, 0, m);
+          break;
+        }
+        case HV_MSG_SYMBOL:
+        case HV_MSG_HASH: {
+          o->e.type = HV_MSG_HASH;
+          o->e.data.h = msg_getHash(m,0);
+          sendMessage(_c, 0, m);
+          break;
+        }
+        default: return;
+      }
+      break;
+    }
+    case 1: {
+      switch (msg_getType(m,0)) {
+        case HV_MSG_FLOAT: {
+          o->e.type = HV_MSG_FLOAT;
+          o->e.data.f = msg_getFloat(m,0);
+          break;
+        }
+        case HV_MSG_SYMBOL:
+        case HV_MSG_HASH: {
+          o->e.type = HV_MSG_HASH;
+          o->e.data.h = msg_getHash(m,0);
+          break;
+        }
+        default: break;
+      }
+    }
+    default: return;
+  }
+}

distrho/source/HvControlVar.h

@@ -0,0 +1,43 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTROL_VAR_H_
+#define _HEAVY_CONTROL_VAR_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct ControlVar {
+  Element e; // type is only every HV_MSG_FLOAT or HV_MSG_HASH
+} ControlVar;
+
+hv_size_t cVar_init_f(ControlVar *o, float k);
+
+hv_size_t cVar_init_s(ControlVar *o, const char *s);
+
+void cVar_free(ControlVar *o);
+
+void cVar_onMessage(HeavyContextInterface *_c, ControlVar *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_CONTROL_VAR_H_

distrho/source/HvHeavy.cpp

@@ -0,0 +1,318 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HeavyContext.hpp"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if !HV_WIN
+#pragma mark - Heavy Table
+#endif
+
+HV_EXPORT bool hv_table_setLength(HeavyContextInterface *c, hv_uint32_t tableHash, hv_uint32_t newSampleLength) {
+  hv_assert(c != nullptr);
+  return c->setLengthForTable(tableHash, newSampleLength);
+}
+
+HV_EXPORT float *hv_table_getBuffer(HeavyContextInterface *c, hv_uint32_t tableHash) {
+  hv_assert(c != nullptr);
+  return c->getBufferForTable(tableHash);
+}
+
+HV_EXPORT hv_uint32_t hv_table_getLength(HeavyContextInterface *c, hv_uint32_t tableHash) {
+  hv_assert(c != nullptr);
+  return c->getLengthForTable(tableHash);
+}
+
+
+
+#if !HV_WIN
+#pragma mark - Heavy Message
+#endif
+
+HV_EXPORT hv_size_t hv_msg_getByteSize(hv_uint32_t numElements) {
+  return msg_getCoreSize(numElements);
+}
+
+HV_EXPORT void hv_msg_init(HvMessage *m, int numElements, hv_uint32_t timestamp) {
+  msg_init(m, numElements, timestamp);
+}
+
+HV_EXPORT hv_size_t hv_msg_getNumElements(const HvMessage *m) {
+  return msg_getNumElements(m);
+}
+
+HV_EXPORT hv_uint32_t hv_msg_getTimestamp(const HvMessage *m) {
+  return msg_getTimestamp(m);
+}
+
+HV_EXPORT void hv_msg_setTimestamp(HvMessage *m, hv_uint32_t timestamp) {
+  msg_setTimestamp(m, timestamp);
+}
+
+HV_EXPORT bool hv_msg_isBang(const HvMessage *const m, int i) {
+  return msg_isBang(m,i);
+}
+
+HV_EXPORT void hv_msg_setBang(HvMessage *m, int i) {
+  msg_setBang(m,i);
+}
+
+HV_EXPORT bool hv_msg_isFloat(const HvMessage *const m, int i) {
+  return msg_isFloat(m, i);
+}
+
+HV_EXPORT float hv_msg_getFloat(const HvMessage *const m, int i) {
+  return msg_getFloat(m,i);
+}
+
+HV_EXPORT void hv_msg_setFloat(HvMessage *m, int i, float f) {
+  msg_setFloat(m,i,f);
+}
+
+HV_EXPORT bool hv_msg_isSymbol(const HvMessage *const m, int i) {
+  return msg_isSymbol(m,i);
+}
+
+HV_EXPORT const char *hv_msg_getSymbol(const HvMessage *const m, int i) {
+  return msg_getSymbol(m,i);
+}
+
+HV_EXPORT void hv_msg_setSymbol(HvMessage *m, int i, const char *s) {
+  msg_setSymbol(m,i,s);
+}
+
+HV_EXPORT bool hv_msg_isHash(const HvMessage *const m, int i) {
+  return msg_isHash(m, i);
+}
+
+HV_EXPORT hv_uint32_t hv_msg_getHash(const HvMessage *const m, int i) {
+  return msg_getHash(m, i);
+}
+
+HV_EXPORT bool hv_msg_hasFormat(const HvMessage *const m, const char *fmt) {
+  return msg_hasFormat(m, fmt);
+}
+
+HV_EXPORT char *hv_msg_toString(const HvMessage *const m) {
+  return msg_toString(m);
+}
+
+HV_EXPORT HvMessage *hv_msg_copy(const HvMessage *const m) {
+  return msg_copy(m);
+}
+
+HV_EXPORT void hv_msg_free(HvMessage *m) {
+  msg_free(m);
+}
+
+
+
+#if !HV_WIN
+#pragma mark - Heavy Common
+#endif
+
+HV_EXPORT int hv_getSize(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return (int) c->getSize();
+}
+
+HV_EXPORT double hv_getSampleRate(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return c->getSampleRate();
+}
+
+HV_EXPORT int hv_getNumInputChannels(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return c->getNumInputChannels();
+}
+
+HV_EXPORT int hv_getNumOutputChannels(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return c->getNumOutputChannels();
+}
+
+HV_EXPORT void hv_setPrintHook(HeavyContextInterface *c, HvPrintHook_t *f) {
+  hv_assert(c != nullptr);
+  c->setPrintHook(f);
+}
+
+HV_EXPORT HvPrintHook_t *hv_getPrintHook(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return c->getPrintHook();
+}
+
+HV_EXPORT void hv_setSendHook(HeavyContextInterface *c, HvSendHook_t *f) {
+  hv_assert(c != nullptr);
+  c->setSendHook(f);
+}
+
+HV_EXPORT hv_uint32_t hv_stringToHash(const char *s) {
+  return hv_string_to_hash(s);
+}
+
+HV_EXPORT bool hv_sendBangToReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash) {
+  hv_assert(c != nullptr);
+  return c->sendBangToReceiver(receiverHash);
+}
+
+HV_EXPORT bool hv_sendFloatToReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash, float x) {
+  hv_assert(c != nullptr);
+  return c->sendFloatToReceiver(receiverHash, x);
+}
+
+HV_EXPORT bool hv_sendSymbolToReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash, char *s) {
+  hv_assert(c != nullptr);
+  return c->sendSymbolToReceiver(receiverHash, s);
+}
+
+HV_EXPORT bool hv_sendMessageToReceiverV(
+    HeavyContextInterface *c, hv_uint32_t receiverHash, double delayMs, const char *format, ...) {
+  hv_assert(c != nullptr);
+  hv_assert(delayMs >= 0.0);
+  hv_assert(format != nullptr);
+
+  va_list ap;
+  va_start(ap, format);
+  const int numElem = (int) hv_strlen(format);
+  HvMessage *m = HV_MESSAGE_ON_STACK(numElem);
+  msg_init(m, numElem, c->getCurrentSample() + (hv_uint32_t) (hv_max_d(0.0, delayMs)*c->getSampleRate()/1000.0));
+  for (int i = 0; i < numElem; i++) {
+    switch (format[i]) {
+      case 'b': msg_setBang(m, i); break;
+      case 'f': msg_setFloat(m, i, (float) va_arg(ap, double)); break;
+      case 'h': msg_setHash(m, i, (int) va_arg(ap, int)); break;
+      case 's': msg_setSymbol(m, i, (char *) va_arg(ap, char *)); break;
+      default: break;
+    }
+  }
+  va_end(ap);
+
+  return c->sendMessageToReceiver(receiverHash, delayMs, m);
+}
+
+HV_EXPORT bool hv_sendMessageToReceiver(
+    HeavyContextInterface *c, hv_uint32_t receiverHash, double delayMs, HvMessage *m) {
+  hv_assert(c != nullptr);
+  return c->sendMessageToReceiver(receiverHash, delayMs, m);
+}
+
+HV_EXPORT void hv_cancelMessage(HeavyContextInterface *c, HvMessage *m, void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  hv_assert(c != nullptr);
+  c->cancelMessage(m, sendMessage);
+}
+
+HV_EXPORT const char *hv_getName(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return c->getName();
+}
+
+HV_EXPORT void hv_setUserData(HeavyContextInterface *c, void *userData) {
+  hv_assert(c != nullptr);
+  c->setUserData(userData);
+}
+
+HV_EXPORT void *hv_getUserData(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return c->getUserData();
+}
+
+HV_EXPORT double hv_getCurrentTime(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return (double) c->samplesToMilliseconds(c->getCurrentSample());
+}
+
+HV_EXPORT hv_uint32_t hv_getCurrentSample(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return c->getCurrentSample();
+}
+
+HV_EXPORT float hv_samplesToMilliseconds(HeavyContextInterface *c, hv_uint32_t numSamples) {
+  hv_assert(c != nullptr);
+  return c->samplesToMilliseconds(numSamples);
+}
+
+HV_EXPORT hv_uint32_t hv_millisecondsToSamples(HeavyContextInterface *c, float ms) {
+  hv_assert(c != nullptr);
+  return c->millisecondsToSamples(ms);
+}
+
+HV_EXPORT int hv_getParameterInfo(HeavyContextInterface *c, int index, HvParameterInfo *info) {
+  hv_assert(c != nullptr);
+  return c->getParameterInfo(index, info);
+}
+
+HV_EXPORT void hv_lock_acquire(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  c->lockAcquire();
+}
+
+HV_EXPORT bool hv_lock_try(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  return c->lockTry();
+}
+
+HV_EXPORT void hv_lock_release(HeavyContextInterface *c) {
+  hv_assert(c != nullptr);
+  c->lockRelease();
+}
+
+HV_EXPORT void hv_setInputMessageQueueSize(HeavyContextInterface *c, hv_uint32_t inQueueKb) {
+  hv_assert(c != nullptr);
+  c->setInputMessageQueueSize(inQueueKb);
+}
+
+HV_EXPORT void hv_setOutputMessageQueueSize(HeavyContextInterface *c, hv_uint32_t outQueueKb) {
+  hv_assert(c != nullptr);
+  c->setOutputMessageQueueSize(outQueueKb);
+}
+
+HV_EXPORT bool hv_getNextSentMessage(HeavyContextInterface *c, hv_uint32_t *destinationHash, HvMessage *outMsg, hv_uint32_t msgLength) {
+  hv_assert(c != nullptr);
+  hv_assert(destinationHash != nullptr);
+  hv_assert(outMsg != nullptr);
+  return c->getNextSentMessage(destinationHash, outMsg, msgLength);
+}
+
+
+#if !HV_WIN
+#pragma mark - Heavy Common
+#endif
+
+HV_EXPORT int hv_process(HeavyContextInterface *c, float **inputBuffers, float **outputBuffers, int n) {
+  hv_assert(c != nullptr);
+  return c->process(inputBuffers, outputBuffers, n);
+}
+
+HV_EXPORT int hv_processInline(HeavyContextInterface *c, float *inputBuffers, float *outputBuffers, int n) {
+  hv_assert(c != nullptr);
+  return c->processInline(inputBuffers, outputBuffers, n);
+}
+
+HV_EXPORT int hv_processInlineInterleaved(HeavyContextInterface *c, float *inputBuffers, float *outputBuffers, int n) {
+  hv_assert(c != nullptr);
+  return c->processInlineInterleaved(inputBuffers, outputBuffers, n);
+}
+
+HV_EXPORT void hv_delete(HeavyContextInterface *c) {
+  delete c;
+}
+
+#ifdef __cplusplus
+}
+#endif

distrho/source/HvHeavy.h

@@ -0,0 +1,413 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_H_
+#define _HEAVY_H_
+
+#include "HvUtils.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _HEAVY_DECLARATIONS_
+#define _HEAVY_DECLARATIONS_
+
+#ifdef __cplusplus
+class HeavyContextInterface;
+#else
+typedef struct HeavyContextInterface HeavyContextInterface;
+#endif
+
+typedef struct HvMessage HvMessage;
+
+typedef enum {
+  HV_PARAM_TYPE_PARAMETER_IN,
+  HV_PARAM_TYPE_PARAMETER_OUT,
+  HV_PARAM_TYPE_EVENT_IN,
+  HV_PARAM_TYPE_EVENT_OUT
+} HvParameterType;
+
+typedef struct HvParameterInfo {
+  const char *name;     // the human readable parameter name
+  hv_uint32_t hash;     // an integer identified used by heavy for this parameter
+  HvParameterType type; // type of this parameter
+  float minVal;         // the minimum value of this parameter
+  float maxVal;         // the maximum value of this parameter
+  float defaultVal;     // the default value of this parameter
+} HvParameterInfo;
+
+typedef void (HvSendHook_t) (HeavyContextInterface *context, const char *sendName, hv_uint32_t sendHash, const HvMessage *msg);
+typedef void (HvPrintHook_t) (HeavyContextInterface *context, const char *printName, const char *str, const HvMessage *msg);
+
+#endif // _HEAVY_DECLARATIONS_
+
+
+
+#if HV_APPLE
+#pragma mark - Heavy Context
+#endif
+
+/** Deletes a patch instance. */
+void hv_delete(HeavyContextInterface *c);
+
+
+
+#if HV_APPLE
+#pragma mark - Heavy Process
+#endif
+
+/**
+ * Processes one block of samples for a patch instance. The buffer format is an array of float channel arrays.
+ * If the context has not input or output channels, the respective argument may be NULL.
+ * The number of samples to to tbe processed should be a multiple of 1, 4, or 8, depending on if
+ * no, SSE or NEON, or AVX optimisation is being used, respectively.
+ * e.g. [[LLLL][RRRR]]
+ * This function support in-place processing.
+ *
+ * @return  The number of samples processed.
+ *
+ * This function is NOT thread-safe. It is assumed that only the audio thread will execute this function.
+ */
+int hv_process(HeavyContextInterface *c, float **inputBuffers, float **outputBuffers, int n);
+
+/**
+ * Processes one block of samples for a patch instance. The buffer format is an uninterleaved float array of channels.
+ * If the context has not input or output channels, the respective argument may be NULL.
+ * The number of samples to to tbe processed should be a multiple of 1, 4, or 8, depending on if
+ * no, SSE or NEON, or AVX optimisation is being used, respectively.
+ * e.g. [LLLLRRRR]
+ * This function support in-place processing.
+ *
+ * @return  The number of samples processed.
+ *
+ * This function is NOT thread-safe. It is assumed that only the audio thread will execute this function.
+ */
+int hv_processInline(HeavyContextInterface *c, float *inputBuffers, float *outputBuffers, int n);
+
+/**
+ * Processes one block of samples for a patch instance. The buffer format is an interleaved float array of channels.
+ * If the context has not input or output channels, the respective argument may be NULL.
+ * The number of samples to to tbe processed should be a multiple of 1, 4, or 8, depending on if
+ * no, SSE or NEON, or AVX optimisation is being used, respectively.
+ * e.g. [LRLRLRLR]
+ * This function support in-place processing.
+ *
+ * @return  The number of samples processed.
+ *
+ * This function is NOT thread-safe. It is assumed that only the audio thread will execute this function.
+ */
+int hv_processInlineInterleaved(HeavyContextInterface *c, float *inputBuffers, float *outputBuffers, int n);
+
+
+
+#if HV_APPLE
+#pragma mark - Heavy Common
+#endif
+
+/**
+ * Returns the total size in bytes of the context.
+ * This value may change if tables are resized.
+ */
+int hv_getSize(HeavyContextInterface *c);
+
+/** Returns the sample rate with which this context has been configured. */
+double hv_getSampleRate(HeavyContextInterface *c);
+
+/** Returns the number of input channels with which this context has been configured. */
+int hv_getNumInputChannels(HeavyContextInterface *c);
+
+/** Returns the number of output channels with which this context has been configured. */
+int hv_getNumOutputChannels(HeavyContextInterface *c);
+
+/** Set the print hook. The function is called whenever a message is sent to a print object. */
+void hv_setPrintHook(HeavyContextInterface *c, HvPrintHook_t *f);
+
+/** Returns the print hook, or NULL. */
+HvPrintHook_t *hv_getPrintHook(HeavyContextInterface *c);
+
+/**
+ * Set the send hook. The function is called whenever a message is sent to any send object.
+ * Messages returned by this function should NEVER be freed. If the message must persist, call
+ * hv_msg_copy() first.
+ */
+void hv_setSendHook(HeavyContextInterface *c, HvSendHook_t *f);
+
+/** Returns a 32-bit hash of any string. Returns 0 if string is NULL. */
+hv_uint32_t hv_stringToHash(const char *s);
+
+/**
+ * A convenience function to send a bang to a receiver to be processed immediately.
+ * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+ * This function is thread-safe.
+ *
+ * @return  True if the message was accepted. False if the message could not fit onto
+ *          the message queue to be processed this block.
+ */
+bool hv_sendBangToReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash);
+
+/**
+ * A convenience function to send a float to a receiver to be processed immediately.
+ * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+ * This function is thread-safe.
+ *
+ * @return  True if the message was accepted. False if the message could not fit onto
+ *          the message queue to be processed this block.
+ */
+bool hv_sendFloatToReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash, const float x);
+
+/**
+ * A convenience function to send a symbol to a receiver to be processed immediately.
+ * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+ * This function is thread-safe.
+ *
+ * @return  True if the message was accepted. False if the message could not fit onto
+ *          the message queue to be processed this block.
+ */
+bool hv_sendSymbolToReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash, char *s);
+
+/**
+ * Sends a formatted message to a receiver that can be scheduled for the future.
+ * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+ * This function is thread-safe.
+ *
+ * @return  True if the message was accepted. False if the message could not fit onto
+ *          the message queue to be processed this block.
+ */
+bool hv_sendMessageToReceiverV(HeavyContextInterface *c, hv_uint32_t receiverHash, double delayMs, const char *format, ...);
+
+/**
+ * Sends a message to a receiver that can be scheduled for the future.
+ * The receiver is addressed with its hash, which can also be determined using hv_stringToHash().
+ * This function is thread-safe.
+ *
+ * @return  True if the message was accepted. False if the message could not fit onto
+ *          the message queue to be processed this block.
+ */
+bool hv_sendMessageToReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash, double delayMs, HvMessage *m);
+
+/**
+ * Cancels a previously scheduled message.
+ *
+ * @param sendMessage  May be NULL.
+ */
+void hv_cancelMessage(HeavyContextInterface *c, HvMessage *m, void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+/** Returns the read-only user-assigned name of this patch. */
+const char *hv_getName(HeavyContextInterface *c);
+
+/** Sets a user-definable value. This value is never manipulated by Heavy. */
+void hv_setUserData(HeavyContextInterface *c, void *userData);
+
+/** Returns the user-defined data. */
+void *hv_getUserData(HeavyContextInterface *c);
+
+/** Returns the current patch time in milliseconds. This value may have rounding errors. */
+double hv_getCurrentTime(HeavyContextInterface *c);
+
+/** Returns the current patch time in samples. This value is always exact. */
+hv_uint32_t hv_getCurrentSample(HeavyContextInterface *c);
+
+/**
+ * Returns information about each parameter such as name, hash, and range.
+ * The total number of parameters is always returned.
+ *
+ * @param index  The parameter index.
+ * @param info  A pointer to a HvParameterInfo struct. May be null.
+ *
+ * @return  The total number of parameters.
+ */
+int hv_getParameterInfo(HeavyContextInterface *c, int index, HvParameterInfo *info);
+
+/** */
+float hv_samplesToMilliseconds(HeavyContextInterface *c, hv_uint32_t numSamples);
+
+/** Converts milliseconds to samples. Input is limited to non-negative range. */
+hv_uint32_t hv_millisecondsToSamples(HeavyContextInterface *c, float ms);
+
+/**
+ * Acquire the input message queue lock.
+ *
+ * This function will block until the message lock as been acquired.
+ * Typical applications will not require the use of this function.
+ *
+ * @param c  A Heavy context.
+ */
+void hv_lock_acquire(HeavyContextInterface *c);
+
+/**
+ * Try to acquire the input message queue lock.
+ *
+ * If the lock has been acquired, hv_lock_release() must be called to release it.
+ * Typical applications will not require the use of this function.
+ *
+ * @param c  A Heavy context.
+ *
+ * @return Returns true if the lock has been acquired, false otherwise.
+ */
+bool hv_lock_try(HeavyContextInterface *c);
+
+/**
+ * Release the input message queue lock.
+ *
+ * Typical applications will not require the use of this function.
+ *
+ * @param c  A Heavy context.
+ */
+void hv_lock_release(HeavyContextInterface *c);
+
+/**
+ * Set the size of the input message queue in kilobytes.
+ *
+ * The buffer is reset and all existing contents are lost on resize.
+ *
+ * @param c  A Heavy context.
+ * @param inQueueKb  Must be positive i.e. at least one.
+ */
+void hv_setInputMessageQueueSize(HeavyContextInterface *c, hv_uint32_t inQueueKb);
+
+/**
+ * Set the size of the output message queue in kilobytes.
+ *
+ * The buffer is reset and all existing contents are lost on resize.
+ * Only the default sendhook uses the outgoing message queue. If the default
+ * sendhook is not being used, then this function is not useful.
+ *
+ * @param c  A Heavy context.
+ * @param outQueueKb  Must be postive i.e. at least one.
+ */
+void hv_setOutputMessageQueueSize(HeavyContextInterface *c, hv_uint32_t outQueueKb);
+
+/**
+ * Get the next message in the outgoing queue, will also consume the message.
+ * Returns false if there are no messages.
+ *
+ * @param c  A Heavy context.
+ * @param destinationHash  a hash of the name of the receiver the message was sent to.
+ * @param outMsg  message pointer that is filled by the next message contents.
+ * @param msgLength  length of outMsg in bytes.
+ *
+ * @return  True if there is a message in the outgoing queue.
+*/
+bool hv_getNextSentMessage(HeavyContextInterface *c, hv_uint32_t *destinationHash, HvMessage *outMsg, hv_uint32_t msgLength);
+
+
+
+#if HV_APPLE
+#pragma mark - Heavy Message
+#endif
+
+typedef struct HvMessage HvMessage;
+
+/** Returns the total size in bytes of a HvMessage with a number of elements on the heap. */
+unsigned long hv_msg_getByteSize(hv_uint32_t numElements);
+
+/** Initialise a HvMessage structure with the number of elements and a timestamp (in samples). */
+void hv_msg_init(HvMessage *m, int numElements, hv_uint32_t timestamp);
+
+/** Returns the number of elements in this message. */
+unsigned long hv_msg_getNumElements(const HvMessage *m);
+
+/** Returns the time at which this message exists (in samples). */
+hv_uint32_t hv_msg_getTimestamp(const HvMessage *m);
+
+/** Set the time at which this message should be executed (in samples). */
+void hv_msg_setTimestamp(HvMessage *m, hv_uint32_t timestamp);
+
+/** Returns true of the indexed element is a bang. False otherwise. Index is not bounds checked. */
+bool hv_msg_isBang(const HvMessage *const m, int i);
+
+/** Sets the indexed element to a bang. Index is not bounds checked. */
+void hv_msg_setBang(HvMessage *m, int i);
+
+/** Returns true of the indexed element is a float. False otherwise. Index is not bounds checked. */
+bool hv_msg_isFloat(const HvMessage *const m, int i);
+
+/** Returns the indexed element as a float value. Index is not bounds checked. */
+float hv_msg_getFloat(const HvMessage *const m, int i);
+
+/** Sets the indexed element to float value. Index is not bounds checked. */
+void hv_msg_setFloat(HvMessage *m, int i, float f);
+
+/** Returns true of the indexed element is a symbol. False otherwise. Index is not bounds checked. */
+bool hv_msg_isSymbol(const HvMessage *const m, int i);
+
+/** Returns the indexed element as a symbol value. Index is not bounds checked. */
+const char *hv_msg_getSymbol(const HvMessage *const m, int i);
+
+/** Returns true of the indexed element is a hash. False otherwise. Index is not bounds checked. */
+bool hv_msg_isHash(const HvMessage *const m, int i);
+
+/** Returns the indexed element as a hash value. Index is not bounds checked. */
+hv_uint32_t hv_msg_getHash(const HvMessage *const m, int i);
+
+/** Sets the indexed element to symbol value. Index is not bounds checked. */
+void hv_msg_setSymbol(HvMessage *m, int i, const char *s);
+
+/**
+ * Returns true if the message has the given format, in number of elements and type. False otherwise.
+ * Valid element types are:
+ * 'b': bang
+ * 'f': float
+ * 's': symbol
+ *
+ * For example, a message with three floats would have a format of "fff". A single bang is "b".
+ * A message with two symbols is "ss". These types can be mixed and matched in any way.
+ */
+bool hv_msg_hasFormat(const HvMessage *const m, const char *fmt);
+
+/**
+ * Returns a basic string representation of the message.
+ * The character array MUST be deallocated by the caller.
+ */
+char *hv_msg_toString(const HvMessage *const m);
+
+/** Copy a message onto the stack. The message persists. */
+HvMessage *hv_msg_copy(const HvMessage *const m);
+
+/** Free a copied message. */
+void hv_msg_free(HvMessage *m);
+
+
+
+#if HV_APPLE
+#pragma mark - Heavy Table
+#endif
+
+/**
+ * Resizes the table to the given length.
+ *
+ * Existing contents are copied to the new table. Remaining space is cleared
+ * if the table is longer than the original, truncated otherwise.
+ *
+ * @param tableHash  The table identifier.
+ * @param newSampleLength  The new length of the table, in samples. Must be positive.
+ *
+ * @return  False if the table could not be found. True otherwise.
+ */
+bool hv_table_setLength(HeavyContextInterface *c, hv_uint32_t tableHash, hv_uint32_t newSampleLength);
+
+/** Returns a pointer to the raw buffer backing this table. DO NOT free it. */
+float *hv_table_getBuffer(HeavyContextInterface *c, hv_uint32_t tableHash);
+
+/** Returns the length of this table in samples. */
+hv_uint32_t hv_table_getLength(HeavyContextInterface *c, hv_uint32_t tableHash);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_H_

distrho/source/HvHeavyInternal.h

@@ -0,0 +1,51 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_INTERNAL_H_
+#define _HEAVY_INTERNAL_H_
+
+#include "HvHeavy.h"
+#include "HvUtils.h"
+#include "HvTable.h"
+#include "HvMessage.h"
+#include "HvMath.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *
+ */
+HvTable *hv_table_get(HeavyContextInterface *c, hv_uint32_t tableHash);
+
+/**
+ *
+ */
+void hv_scheduleMessageForReceiver(HeavyContextInterface *c, hv_uint32_t receiverHash, HvMessage *m);
+
+/**
+ *
+ */
+HvMessage *hv_scheduleMessageForObject(HeavyContextInterface *c, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *),
+    int letIndex);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

distrho/source/HvLightPipe.c

@@ -0,0 +1,136 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvLightPipe.h"
+
+#if __SSE__ || HV_SIMD_SSE
+#include <xmmintrin.h>
+#define hv_sfence() _mm_sfence()
+#elif __arm__ || HV_SIMD_NEON
+  #if __ARM_ACLE
+    #include <arm_acle.h>
+    // https://msdn.microsoft.com/en-us/library/hh875058.aspx#BarrierRestrictions
+    // http://doxygen.reactos.org/d8/d47/armintr_8h_a02be7ec76ca51842bc90d9b466b54752.html
+    #define hv_sfence() __dmb(0xE) /* _ARM_BARRIER_ST */
+  #elif defined(__GNUC__)
+    #define hv_sfence() __asm__ volatile ("dmb 0xE":::"memory")
+  #else
+    // http://stackoverflow.com/questions/19965076/gcc-memory-barrier-sync-synchronize-vs-asm-volatile-memory
+    #define hv_sfence() __sync_synchronize()
+  #endif
+#elif HV_WIN
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684208(v=vs.85).aspx
+#define hv_sfence() _WriteBarrier()
+#else
+#define hv_sfence() __asm__ volatile("" : : : "memory")
+#endif
+
+#define HLP_STOP 0
+#define HLP_LOOP 0xFFFFFFFF
+#define HLP_SET_UINT32_AT_BUFFER(a, b) (*((hv_uint32_t *) (a)) = (b))
+#define HLP_GET_UINT32_AT_BUFFER(a) (*((hv_uint32_t *) (a)))
+
+hv_uint32_t hLp_init(HvLightPipe *q, hv_uint32_t numBytes) {
+  if (numBytes > 0) {
+    q->buffer = (char *) hv_malloc(numBytes);
+    hv_assert(q->buffer != NULL);
+    HLP_SET_UINT32_AT_BUFFER(q->buffer, HLP_STOP);
+  } else {
+    q->buffer = NULL;
+  }
+  q->writeHead = q->buffer;
+  q->readHead = q->buffer;
+  q->len = numBytes;
+  q->remainingBytes = numBytes;
+  return numBytes;
+}
+
+void hLp_free(HvLightPipe *q) {
+  hv_free(q->buffer);
+}
+
+hv_uint32_t hLp_hasData(HvLightPipe *q) {
+  hv_uint32_t x = HLP_GET_UINT32_AT_BUFFER(q->readHead);
+  if (x == HLP_LOOP) {
+    q->readHead = q->buffer;
+    x = HLP_GET_UINT32_AT_BUFFER(q->readHead);
+  }
+  return x;
+}
+
+char *hLp_getWriteBuffer(HvLightPipe *q, hv_uint32_t bytesToWrite) {
+  char *const readHead = q->readHead;
+  char *const oldWriteHead = q->writeHead;
+  const hv_uint32_t totalByteRequirement = bytesToWrite + 2*sizeof(hv_uint32_t);
+
+  // check if there is enough space to write the data in the remaining
+  // length of the buffer
+  if (totalByteRequirement <= q->remainingBytes) {
+    char *const newWriteHead = oldWriteHead + sizeof(hv_uint32_t) + bytesToWrite;
+
+    // check if writing would overwrite existing data in the pipe (return NULL if so)
+    if ((oldWriteHead < readHead) && (newWriteHead >= readHead)) return NULL;
+    else return (oldWriteHead + sizeof(hv_uint32_t));
+  } else {
+    // there isn't enough space, try looping around to the start
+    if (totalByteRequirement <= q->len) {
+      if ((oldWriteHead < readHead) || ((q->buffer + totalByteRequirement) > readHead)) {
+        return NULL; // overwrite condition
+      } else {
+        q->writeHead = q->buffer;
+        q->remainingBytes = q->len;
+        HLP_SET_UINT32_AT_BUFFER(q->buffer, HLP_STOP);
+        hv_sfence();
+        HLP_SET_UINT32_AT_BUFFER(oldWriteHead, HLP_LOOP);
+        return q->buffer + sizeof(hv_uint32_t);
+      }
+    } else {
+      return NULL; // there isn't enough space to write the data
+    }
+  }
+}
+
+void hLp_produce(HvLightPipe *q, hv_uint32_t numBytes) {
+  hv_assert(q->remainingBytes >= (numBytes + 2*sizeof(hv_uint32_t)));
+  q->remainingBytes -= (sizeof(hv_uint32_t) + numBytes);
+  char *const oldWriteHead = q->writeHead;
+  q->writeHead += (sizeof(hv_uint32_t) + numBytes);
+  HLP_SET_UINT32_AT_BUFFER(q->writeHead, HLP_STOP);
+
+  // save everything before this point to memory
+  hv_sfence();
+
+  // then save this
+  HLP_SET_UINT32_AT_BUFFER(oldWriteHead, numBytes);
+}
+
+char *hLp_getReadBuffer(HvLightPipe *q, hv_uint32_t *numBytes) {
+  *numBytes = HLP_GET_UINT32_AT_BUFFER(q->readHead);
+  char *const readBuffer = q->readHead + sizeof(hv_uint32_t);
+  return readBuffer;
+}
+
+void hLp_consume(HvLightPipe *q) {
+  hv_assert(HLP_GET_UINT32_AT_BUFFER(q->readHead) != HLP_STOP);
+  q->readHead += sizeof(hv_uint32_t) + HLP_GET_UINT32_AT_BUFFER(q->readHead);
+}
+
+void hLp_reset(HvLightPipe *q) {
+  q->writeHead = q->buffer;
+  q->readHead = q->buffer;
+  q->remainingBytes = q->len;
+  memset(q->buffer, 0, q->len);
+}

distrho/source/HvLightPipe.h

@@ -0,0 +1,104 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_LIGHTPIPE_H_
+#define _HEAVY_LIGHTPIPE_H_
+
+#include "HvUtils.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * This pipe assumes that there is only one producer thread and one consumer
+ * thread. This data structure does not support any other configuration.
+ */
+typedef struct HvLightPipe {
+  char *buffer;
+  char *writeHead;
+  char *readHead;
+  hv_uint32_t len;
+  hv_uint32_t remainingBytes; // total bytes from write head to end
+} HvLightPipe;
+
+/**
+ * Initialise the pipe with a given length, in bytes.
+ * @return  Returns the size of the pipe in bytes.
+ */
+hv_uint32_t hLp_init(HvLightPipe *q, hv_uint32_t numBytes);
+
+/**
+ * Frees the internal buffer.
+ * @param q  The light pipe.
+ */
+void hLp_free(HvLightPipe *q);
+
+/**
+ * Indicates if data is available for reading.
+ * @param q  The light pipe.
+ *
+ * @return Returns the number of bytes available for reading. Zero if no bytes
+ *         are available.
+ */
+hv_uint32_t hLp_hasData(HvLightPipe *q);
+
+/**
+ * Returns a pointer to a location in the pipe where numBytes can be written.
+ *
+ * @param numBytes  The number of bytes to be written.
+ * @return  A pointer to a location where those bytes can be written. Returns
+ *          NULL if no more space is available. Successive calls to this
+ *          function may eventually return a valid pointer because the readhead
+ *          has been advanced on another thread.
+ */
+char *hLp_getWriteBuffer(HvLightPipe *q, hv_uint32_t numBytes);
+
+/**
+ * Indicates to the pipe how many bytes have been written.
+ *
+ * @param numBytes  The number of bytes written. In general this should be the
+ *                  same value as was passed to the preceeding call to
+ *                  hLp_getWriteBuffer().
+ */
+void hLp_produce(HvLightPipe *q, hv_uint32_t numBytes);
+
+/**
+ * Returns the current read buffer, indicating the number of bytes available
+ * for reading.
+ * @param q  The light pipe.
+ * @param numBytes  This value will be filled with the number of bytes available
+ *                  for reading.
+ *
+ * @return  A pointer to the read buffer.
+ */
+char *hLp_getReadBuffer(HvLightPipe *q, hv_uint32_t *numBytes);
+
+/**
+ * Indicates that the next set of bytes have been read and are no longer needed.
+ * @param q  The light pipe.
+ */
+void hLp_consume(HvLightPipe *q);
+
+// resets the queue to it's initialised state
+// This should be done when only one thread is accessing the pipe.
+void hLp_reset(HvLightPipe *q);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _HEAVY_LIGHTPIPE_H_

distrho/source/HvMath.h

@@ -0,0 +1,724 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_MATH_H_
+#define _HEAVY_MATH_H_
+
+#include "HvUtils.h"
+
+// https://software.intel.com/sites/landingpage/IntrinsicsGuide/
+// https://gcc.gnu.org/onlinedocs/gcc-4.8.1/gcc/ARM-NEON-Intrinsics.html
+// http://codesuppository.blogspot.co.uk/2015/02/sse2neonh-porting-guide-and-header-file.html
+
+static inline void __hv_zero_f(hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_setzero_ps();
+#elif HV_SIMD_SSE
+  *bOut = _mm_setzero_ps();
+#elif HV_SIMD_NEON
+  *bOut = vdupq_n_f32(0.0f);
+#else // HV_SIMD_NONE
+  *bOut = 0.0f;
+#endif
+}
+
+static inline void __hv_zero_i(hv_bOuti_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_setzero_si256();
+#elif HV_SIMD_SSE
+  *bOut = _mm_setzero_si128();
+#elif HV_SIMD_NEON
+  *bOut = vdupq_n_s32(0);
+#else // HV_SIMD_NONE
+  *bOut = 0;
+#endif
+}
+
+static inline void __hv_load_f(float *bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_load_ps(bIn);
+#elif HV_SIMD_SSE
+  *bOut = _mm_load_ps(bIn);
+#elif HV_SIMD_NEON
+  *bOut = vld1q_f32(bIn);
+#else // HV_SIMD_NONE
+  *bOut = *bIn;
+#endif
+}
+
+static inline void __hv_store_f(float *bOut, hv_bInf_t bIn) {
+#if HV_SIMD_AVX
+  _mm256_store_ps(bOut, bIn);
+#elif HV_SIMD_SSE
+  _mm_store_ps(bOut, bIn);
+#elif HV_SIMD_NEON
+  vst1q_f32(bOut, bIn);
+#else // HV_SIMD_NONE
+  *bOut = bIn;
+#endif
+}
+
+static inline void __hv_log2_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_log2_f() not implemented
+#elif HV_SIMD_SSE
+  // https://en.wikipedia.org/wiki/Fast_inverse_square_root
+  __m128i a = _mm_castps_si128(bIn);
+  __m128i b = _mm_srli_epi32(a, 23);
+  __m128i c = _mm_sub_epi32(b, _mm_set1_epi32(127)); // exponent (int)
+  __m128 d = _mm_cvtepi32_ps(c); // exponent (float)
+  __m128i e = _mm_or_si128(_mm_andnot_si128(_mm_set1_epi32(0xFF800000), a), _mm_set1_epi32(0x3F800000));
+  __m128 f = _mm_castsi128_ps(e); // 1+m (float)
+  __m128 g = _mm_add_ps(d, f); // e + 1 + m
+  __m128 h = _mm_add_ps(g, _mm_set1_ps(-0.9569643f)); // e + 1 + m + (sigma-1)
+  *bOut = h;
+#elif HV_SIMD_NEON
+  int32x4_t a = vreinterpretq_s32_f32(bIn);
+  int32x4_t b = vshrq_n_s32(a, 23);
+  int32x4_t c = vsubq_s32(b, vdupq_n_s32(127));
+  float32x4_t d = vcvtq_f32_s32(c);
+  int32x4_t e = vorrq_s32(vbicq_s32(a, vdupq_n_s32(0xFF800000)), vdupq_n_s32(0x3F800000));
+  float32x4_t f = vreinterpretq_f32_s32(e);
+  float32x4_t g = vaddq_f32(d, f);
+  float32x4_t h = vaddq_f32(g, vdupq_n_f32(-0.9569643f));
+  *bOut = h;
+#else // HV_SIMD_NONE
+  *bOut = 1.442695040888963f * hv_log_f(bIn);
+#endif
+}
+
+// NOTE(mhroth): this is a pretty ghetto implementation
+static inline void __hv_cos_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_set_ps(
+      hv_cos_f(bIn[7]), hv_cos_f(bIn[6]), hv_cos_f(bIn[5]), hv_cos_f(bIn[4]),
+      hv_cos_f(bIn[3]), hv_cos_f(bIn[2]), hv_cos_f(bIn[1]), hv_cos_f(bIn[0]));
+#elif HV_SIMD_SSE
+  const float *const b = (float *) &bIn;
+  *bOut = _mm_set_ps(hv_cos_f(b[3]), hv_cos_f(b[2]), hv_cos_f(b[1]), hv_cos_f(b[0]));
+#elif HV_SIMD_NEON
+  *bOut = (float32x4_t) {hv_cos_f(bIn[0]), hv_cos_f(bIn[1]), hv_cos_f(bIn[2]), hv_cos_f(bIn[3])};
+#else // HV_SIMD_NONE
+  *bOut = hv_cos_f(bIn);
+#endif
+}
+
+static inline void __hv_acos_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_acos_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_acos_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_acos_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_acos_f(bIn);
+#endif
+}
+
+static inline void __hv_cosh_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_cosh_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_cosh_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_cosh_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_cosh_f(bIn);
+#endif
+}
+
+static inline void __hv_acosh_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_acosh_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_acosh_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_acosh_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_acosh_f(bIn);
+#endif
+}
+
+static inline void __hv_sin_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_sin_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_sin_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_sin_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_sin_f(bIn);
+#endif
+}
+
+static inline void __hv_asin_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_asin_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_asin_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_asin_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_asin_f(bIn);
+#endif
+}
+
+static inline void __hv_sinh_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_sinh_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_sinh_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_sinh_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_sinh_f(bIn);
+#endif
+}
+
+static inline void __hv_asinh_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_asinh_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_asinh_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_asinh_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_asinh_f(bIn);
+#endif
+}
+
+static inline void __hv_tan_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_tan_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_tan_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_tan_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_tan_f(bIn);
+#endif
+}
+
+static inline void __hv_atan_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_atan_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_atan_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_atan_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_atan_f(bIn);
+#endif
+}
+
+static inline void __hv_atan2_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_atan2_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_atan2_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_atan2_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_atan2_f(bIn0, bIn1);
+#endif
+}
+
+static inline void __hv_tanh_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_tanh_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_tanh_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_tanh_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_tanh_f(bIn);
+#endif
+}
+
+static inline void __hv_atanh_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_assert(0); // __hv_atanh_f() not implemented
+#elif HV_SIMD_SSE
+  hv_assert(0); // __hv_atanh_f() not implemented
+#elif HV_SIMD_NEON
+  hv_assert(0); // __hv_atanh_f() not implemented
+#else // HV_SIMD_NONE
+  *bOut = hv_atanh_f(bIn);
+#endif
+}
+
+static inline void __hv_sqrt_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_sqrt_ps(bIn);
+#elif HV_SIMD_SSE
+  *bOut = _mm_sqrt_ps(bIn);
+#elif HV_SIMD_NEON
+  const float32x4_t y = vrsqrteq_f32(bIn);
+  *bOut = vmulq_f32(bIn, vmulq_f32(vrsqrtsq_f32(vmulq_f32(bIn, y), y), y)); // numerical results may be inexact
+#else // HV_SIMD_NONE
+  *bOut = hv_sqrt_f(bIn);
+#endif
+}
+
+static inline void __hv_rsqrt_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_rsqrt_ps(bIn);
+#elif HV_SIMD_SSE
+  *bOut = _mm_rsqrt_ps(bIn);
+#elif HV_SIMD_NEON
+  const float32x4_t y = vrsqrteq_f32(bIn);
+  *bOut = vmulq_f32(vrsqrtsq_f32(vmulq_f32(bIn, y), y), y); // numerical results may be inexact
+#else // HV_SIMD_NONE
+  *bOut = 1.0f/hv_sqrt_f(bIn);
+#endif
+}
+
+static inline void __hv_abs_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_andnot_ps(_mm256_set1_ps(-0.0f), bIn);
+#elif HV_SIMD_SSE
+  *bOut = _mm_andnot_ps(_mm_set1_ps(-0.0f), bIn); // == 1 << 31
+#elif HV_SIMD_NEON
+  *bOut = vabsq_f32(bIn);
+#else // HV_SIMD_NONE
+  *bOut = hv_abs_f(bIn);
+#endif
+}
+
+static inline void __hv_neg_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_xor_ps(bIn, _mm256_set1_ps(-0.0f));
+#elif HV_SIMD_SSE
+  *bOut = _mm_xor_ps(bIn, _mm_set1_ps(-0.0f));
+#elif HV_SIMD_NEON
+  *bOut = vnegq_f32(bIn);
+#else // HV_SIMD_NONE
+  *bOut = bIn * -1.0f;
+#endif
+}
+
+static inline void __hv_exp_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  float *const b = (float *) hv_alloca(HV_N_SIMD*sizeof(float));
+  _mm256_store_ps(b, bIn);
+  *bOut = _mm256_set_ps(
+      hv_exp_f(b[7]), hv_exp_f(b[6]), hv_exp_f(b[5]), hv_exp_f(b[4]),
+      hv_exp_f(b[3]), hv_exp_f(b[2]), hv_exp_f(b[1]), hv_exp_f(b[0]));
+#elif HV_SIMD_SSE
+  float *const b = (float *) hv_alloca(HV_N_SIMD*sizeof(float));
+  _mm_store_ps(b, bIn);
+  *bOut = _mm_set_ps(hv_exp_f(b[3]), hv_exp_f(b[2]), hv_exp_f(b[1]), hv_exp_f(b[0]));
+#elif HV_SIMD_NEON
+  *bOut = (float32x4_t) {
+    hv_exp_f(bIn[0]),
+    hv_exp_f(bIn[1]),
+    hv_exp_f(bIn[2]),
+    hv_exp_f(bIn[3])};
+#else // HV_SIMD_NONE
+  *bOut = hv_exp_f(bIn);
+#endif
+}
+
+static inline void __hv_ceil_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_ceil_ps(bIn);
+#elif HV_SIMD_SSE
+  *bOut = _mm_ceil_ps(bIn);
+#elif HV_SIMD_NEON
+#if __ARM_ARCH >= 8
+  *bOut = vrndpq_f32(bIn);
+#else
+  // A slow NEON implementation of __hv_ceil_f() is being used because
+  // the necessary intrinsic cannot be found. It is only available in ARMv8.
+  *bOut = (float32x4_t) {hv_ceil_f(bIn[0]), hv_ceil_f(bIn[1]), hv_ceil_f(bIn[2]), hv_ceil_f(bIn[3])};
+#endif // vrndpq_f32
+#else // HV_SIMD_NONE
+  *bOut = hv_ceil_f(bIn);
+#endif
+}
+
+static inline void __hv_floor_f(hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_floor_ps(bIn);
+#elif HV_SIMD_SSE
+  *bOut = _mm_floor_ps(bIn);
+#elif HV_SIMD_NEON
+#if __ARM_ARCH >= 8
+  *bOut = vrndmq_f32(bIn);
+#else
+  // A slow implementation of __hv_floor_f() is being used because
+  // the necessary intrinsic cannot be found. It is only available from ARMv8.
+  *bOut = (float32x4_t) {hv_floor_f(bIn[0]), hv_floor_f(bIn[1]), hv_floor_f(bIn[2]), hv_floor_f(bIn[3])};
+#endif // vrndmq_f32
+#else // HV_SIMD_NONE
+  *bOut = hv_floor_f(bIn);
+#endif
+}
+
+// __add~f
+static inline void __hv_add_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_add_ps(bIn0, bIn1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_add_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vaddq_f32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = bIn0 + bIn1;
+#endif
+}
+
+// __add~i
+static inline void __hv_add_i(hv_bIni_t bIn0, hv_bIni_t bIn1, hv_bOuti_t bOut) {
+#if HV_SIMD_AVX
+  __m128i x = _mm_add_epi32(_mm256_castsi256_si128(bIn0), _mm256_castsi256_si128(bIn1));
+  __m128i y = _mm_add_epi32(_mm256_extractf128_si256(bIn0, 1), _mm256_extractf128_si256(bIn1, 1));
+  *bOut = _mm256_insertf128_si256(_mm256_castsi128_si256(x), y, 1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_add_epi32(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vaddq_s32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = bIn0 + bIn1;
+#endif
+}
+
+// __sub~f
+static inline void __hv_sub_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_sub_ps(bIn0, bIn1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_sub_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vsubq_f32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = bIn0 - bIn1;
+#endif
+}
+
+// __mul~f
+static inline void __hv_mul_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_mul_ps(bIn0, bIn1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_mul_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vmulq_f32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = bIn0 * bIn1;
+#endif
+}
+
+// __*~i
+static inline void __hv_mul_i(hv_bIni_t bIn0, hv_bIni_t bIn1, hv_bOuti_t bOut) {
+#if HV_SIMD_AVX
+  __m128i x = _mm_mullo_epi32(_mm256_castsi256_si128(bIn0), _mm256_castsi256_si128(bIn1));
+  __m128i y = _mm_mullo_epi32(_mm256_extractf128_si256(bIn0, 1), _mm256_extractf128_si256(bIn1, 1));
+  *bOut = _mm256_insertf128_si256(_mm256_castsi128_si256(x), y, 1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_mullo_epi32(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vmulq_s32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = bIn0 * bIn1;
+#endif
+}
+
+// __cast~if
+static inline void __hv_cast_if(hv_bIni_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_cvtepi32_ps(bIn);
+#elif HV_SIMD_SSE
+  *bOut = _mm_cvtepi32_ps(bIn);
+#elif HV_SIMD_NEON
+  *bOut = vcvtq_f32_s32(bIn);
+#else // HV_SIMD_NONE
+  *bOut = (float) bIn;
+#endif
+}
+
+// __cast~fi
+static inline void __hv_cast_fi(hv_bInf_t bIn, hv_bOuti_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_cvtps_epi32(bIn);
+#elif HV_SIMD_SSE
+  *bOut = _mm_cvtps_epi32(bIn);
+#elif HV_SIMD_NEON
+  *bOut = vcvtq_s32_f32(bIn);
+#else // HV_SIMD_NONE
+  *bOut = (int) bIn;
+#endif
+}
+
+static inline void __hv_div_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  __m256 a = _mm256_cmp_ps(bIn1, _mm256_setzero_ps(), _CMP_EQ_OQ);
+  __m256 b = _mm256_div_ps(bIn0, bIn1);
+  *bOut = _mm256_andnot_ps(a, b);
+#elif HV_SIMD_SSE
+  __m128 a = _mm_cmpeq_ps(bIn1, _mm_setzero_ps());
+  __m128 b = _mm_div_ps(bIn0, bIn1);
+  *bOut = _mm_andnot_ps(a, b);
+#elif HV_SIMD_NEON
+  uint32x4_t a = vceqq_f32(bIn1, vdupq_n_f32(0.0f));
+  float32x4_t b = vmulq_f32(bIn0, vrecpeq_f32(bIn1)); // NOTE(mhroth): numerical results may be inexact
+  *bOut = vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(b), a));
+#else // HV_SIMD_NONE
+  *bOut = (bIn1 != 0.0f) ? (bIn0 / bIn1) : 0.0f;
+#endif
+}
+
+static inline void __hv_min_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_min_ps(bIn0, bIn1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_min_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vminq_f32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = hv_min_f(bIn0, bIn1);
+#endif
+}
+
+static inline void __hv_min_i(hv_bIni_t bIn0, hv_bIni_t bIn1, hv_bOuti_t bOut) {
+#if HV_SIMD_AVX
+  __m128i x = _mm_min_epi32(_mm256_castsi256_si128(bIn0), _mm256_castsi256_si128(bIn1));
+  __m128i y = _mm_min_epi32(_mm256_extractf128_si256(bIn0, 1), _mm256_extractf128_si256(bIn1, 1));
+  *bOut = _mm256_insertf128_si256(_mm256_castsi128_si256(x), y, 1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_min_epi32(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vminq_s32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = hv_min_i(bIn0, bIn1);
+#endif
+}
+
+static inline void __hv_max_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_max_ps(bIn0, bIn1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_max_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vmaxq_f32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = hv_max_f(bIn0, bIn1);
+#endif
+}
+
+static inline void __hv_max_i(hv_bIni_t bIn0, hv_bIni_t bIn1, hv_bOuti_t bOut) {
+#if HV_SIMD_AVX
+  __m128i x = _mm_max_epi32(_mm256_castsi256_si128(bIn0), _mm256_castsi256_si128(bIn1));
+  __m128i y = _mm_max_epi32(_mm256_extractf128_si256(bIn0, 1), _mm256_extractf128_si256(bIn1, 1));
+  *bOut = _mm256_insertf128_si256(_mm256_castsi128_si256(x), y, 1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_max_epi32(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vmaxq_s32(bIn0, bIn1);
+#else // HV_SIMD_NONE
+  *bOut = hv_max_i(bIn0, bIn1);
+#endif
+}
+
+static inline void __hv_pow_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  float *b = (float *) hv_alloca(16*sizeof(float));
+  _mm256_store_ps(b, bIn0);
+  _mm256_store_ps(b+8, bIn1);
+  *bOut = _mm256_set_ps(
+      hv_pow_f(b[7], b[7]),
+      hv_pow_f(b[6], b[6]),
+      hv_pow_f(b[5], b[5]),
+      hv_pow_f(b[4], b[4]),
+      hv_pow_f(b[3], b[3]),
+      hv_pow_f(b[2], b[2]),
+      hv_pow_f(b[1], b[1]),
+      hv_pow_f(b[0], b[0]));
+#elif HV_SIMD_SSE
+  float *b = (float *) hv_alloca(8*sizeof(float));
+  _mm_store_ps(b, bIn0);
+  _mm_store_ps(b+4, bIn1);
+  *bOut = _mm_set_ps(
+      hv_pow_f(b[3], b[7]),
+      hv_pow_f(b[2], b[6]),
+      hv_pow_f(b[1], b[5]),
+      hv_pow_f(b[0], b[4]));
+#elif HV_SIMD_NEON
+  *bOut = (float32x4_t) {
+      hv_pow_f(bIn0[0], bIn1[0]),
+      hv_pow_f(bIn0[1], bIn1[1]),
+      hv_pow_f(bIn0[2], bIn1[2]),
+      hv_pow_f(bIn0[3], bIn1[3])};
+#else // HV_SIMD_NONE
+  *bOut = hv_pow_f(bIn0, bIn1);
+#endif
+}
+
+static inline void __hv_gt_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_cmp_ps(bIn0, bIn1, _CMP_GT_OQ);
+#elif HV_SIMD_SSE
+  *bOut = _mm_cmpgt_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vreinterpretq_f32_u32(vcgtq_f32(bIn0, bIn1));
+#else // HV_SIMD_NONE
+  *bOut = (bIn0 > bIn1) ? 1.0f : 0.0f;
+#endif
+}
+
+static inline void __hv_gte_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_cmp_ps(bIn0, bIn1, _CMP_GE_OQ);
+#elif HV_SIMD_SSE
+  *bOut = _mm_cmpge_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vreinterpretq_f32_u32(vcgeq_f32(bIn0, bIn1));
+#else // HV_SIMD_NONE
+  *bOut = (bIn0 >= bIn1) ? 1.0f : 0.0f;
+#endif
+}
+
+static inline void __hv_lt_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_cmp_ps(bIn0, bIn1, _CMP_LT_OQ);
+#elif HV_SIMD_SSE
+  *bOut = _mm_cmplt_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vreinterpretq_f32_u32(vcltq_f32(bIn0, bIn1));
+#else // HV_SIMD_NONE
+  *bOut = (bIn0 < bIn1) ? 1.0f : 0.0f;
+#endif
+}
+
+static inline void __hv_lte_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_cmp_ps(bIn0, bIn1, _CMP_LE_OQ);
+#elif HV_SIMD_SSE
+  *bOut = _mm_cmple_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vreinterpretq_f32_u32(vcleq_f32(bIn0, bIn1));
+#else // HV_SIMD_NONE
+  *bOut = (bIn0 <= bIn1) ? 1.0f : 0.0f;
+#endif
+}
+
+static inline void __hv_neq_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_cmp_ps(bIn0, bIn1, _CMP_NEQ_OQ);
+#elif HV_SIMD_SSE
+  *bOut = _mm_cmpneq_ps(bIn0, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vreinterpretq_f32_u32(vmvnq_u32(vceqq_f32(bIn0, bIn1)));
+#else // HV_SIMD_NONE
+  *bOut = (bIn0 != bIn1) ? 1.0f : 0.0f;
+#endif
+}
+
+static inline void __hv_or_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_or_ps(bIn1, bIn0);
+#elif HV_SIMD_SSE
+  *bOut = _mm_or_ps(bIn1, bIn0);
+#elif HV_SIMD_NEON
+  *bOut = vreinterpretq_f32_u32(vorrq_u32(vreinterpretq_u32_f32(bIn1), vreinterpretq_u32_f32(bIn0)));
+#else // HV_SIMD_NONE
+  if (bIn0 == 0.0f && bIn1 == 0.0f) *bOut = 0.0f;
+  else if (bIn0 == 0.0f) *bOut = bIn1;
+  else if (bIn1 == 0.0f) *bOut = bIn0;
+  else hv_assert(0);
+#endif
+}
+
+static inline void __hv_and_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_and_ps(bIn1, bIn0);
+#elif HV_SIMD_SSE
+  *bOut = _mm_and_ps(bIn1, bIn0);
+#elif HV_SIMD_NEON
+  *bOut = vreinterpretq_f32_u32(vandq_u32(vreinterpretq_u32_f32(bIn1), vreinterpretq_u32_f32(bIn0)));
+#else // HV_SIMD_NONE
+  if (bIn0 == 0.0f || bIn1 == 0.0f) *bOut = 0.0f;
+  else if (bIn0 == 1.0f) *bOut = bIn1;
+  else if (bIn1 == 1.0f) *bOut = bIn0;
+  else hv_assert(0);
+#endif
+}
+
+static inline void __hv_andnot_f(hv_bInf_t bIn0_mask, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_andnot_ps(bIn0_mask, bIn1);
+#elif HV_SIMD_SSE
+  *bOut = _mm_andnot_ps(bIn0_mask, bIn1);
+#elif HV_SIMD_NEON
+  *bOut = vreinterpretq_f32_s32(vbicq_s32(vreinterpretq_s32_f32(bIn1), vreinterpretq_s32_f32(bIn0_mask)));
+#else // HV_SIMD_NONE
+  *bOut = (bIn0_mask == 0.0f) ? bIn1 : 0.0f;
+#endif
+}
+
+// bOut = (bIn0 * bIn1) + bIn2
+static inline void __hv_fma_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bInf_t bIn2, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+#if HV_SIMD_FMA
+  *bOut = _mm256_fmadd_ps(bIn0, bIn1, bIn2);
+#else
+  *bOut = _mm256_add_ps(_mm256_mul_ps(bIn0, bIn1), bIn2);
+#endif // HV_SIMD_FMA
+#elif HV_SIMD_SSE
+#if HV_SIMD_FMA
+  *bOut = _mm_fmadd_ps(bIn0, bIn1, bIn2);
+#else
+  *bOut = _mm_add_ps(_mm_mul_ps(bIn0, bIn1), bIn2);
+#endif // HV_SIMD_FMA
+#elif HV_SIMD_NEON
+#if __ARM_ARCH >= 8
+  *bOut = vfmaq_f32(bIn2, bIn0, bIn1);
+#else
+  // NOTE(mhroth): it turns out, fma SUUUUCKS on lesser ARM architectures
+  *bOut = vaddq_f32(vmulq_f32(bIn0, bIn1), bIn2);
+#endif
+#else // HV_SIMD_NONE
+  *bOut = hv_fma_f(bIn0, bIn1, bIn2);
+#endif
+}
+
+// bOut = (bIn0 * bIn1) - bIn2
+static inline void __hv_fms_f(hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bInf_t bIn2, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+#if HV_SIMD_FMA
+  *bOut = _mm256_fmsub_ps(bIn0, bIn1, bIn2);
+#else
+  *bOut = _mm256_sub_ps(_mm256_mul_ps(bIn0, bIn1), bIn2);
+#endif // HV_SIMD_FMA
+#elif HV_SIMD_SSE
+#if HV_SIMD_FMA
+  *bOut = _mm_fmsub_ps(bIn0, bIn1, bIn2);
+#else
+  *bOut = _mm_sub_ps(_mm_mul_ps(bIn0, bIn1), bIn2);
+#endif // HV_SIMD_FMA
+#elif HV_SIMD_NEON
+#if __ARM_ARCH >= 8
+  *bOut = vfmsq_f32(bIn2, bIn0, bIn1);
+#else
+  // NOTE(mhroth): it turns out, fma SUUUUCKS on lesser ARM architectures
+  *bOut = vsubq_f32(vmulq_f32(bIn0, bIn1), bIn2);
+#endif
+#else // HV_SIMD_NONE
+  *bOut = (bIn0 * bIn1) - bIn2;
+#endif
+}
+
+#endif // _HEAVY_MATH_H_

distrho/source/HvMessage.c

@@ -0,0 +1,199 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvMessage.h"
+
+HvMessage *msg_init(HvMessage *m, hv_size_t numElements, hv_uint32_t timestamp) {
+  m->timestamp = timestamp;
+  m->numElements = (hv_uint16_t) numElements;
+  m->numBytes = (hv_uint16_t) msg_getCoreSize(numElements);
+  return m;
+}
+
+HvMessage *msg_initWithFloat(HvMessage *m, hv_uint32_t timestamp, float f) {
+  m->timestamp = timestamp;
+  m->numElements = 1;
+  m->numBytes = sizeof(HvMessage);
+  msg_setFloat(m, 0, f);
+  return m;
+}
+
+HvMessage *msg_initWithBang(HvMessage *m, hv_uint32_t timestamp) {
+  m->timestamp = timestamp;
+  m->numElements = 1;
+  m->numBytes = sizeof(HvMessage);
+  msg_setBang(m, 0);
+  return m;
+}
+
+HvMessage *msg_initWithSymbol(HvMessage *m, hv_uint32_t timestamp, const char *s) {
+  m->timestamp = timestamp;
+  m->numElements = 1;
+  m->numBytes = sizeof(HvMessage) + (hv_uint16_t) hv_strlen(s);
+  msg_setSymbol(m, 0, s);
+  return m;
+}
+
+HvMessage *msg_initWithHash(HvMessage *m, hv_uint32_t timestamp, hv_uint32_t h) {
+  m->timestamp = timestamp;
+  m->numElements = 1;
+  m->numBytes = sizeof(HvMessage);
+  msg_setHash(m, 0, h);
+  return m;
+}
+
+void msg_copyToBuffer(const HvMessage *m, char *buffer, hv_size_t len) {
+  HvMessage *r = (HvMessage *) buffer;
+
+  hv_size_t len_r = msg_getCoreSize(msg_getNumElements(m));
+
+  // assert that the message is not already larger than the length of the buffer
+  hv_assert(len_r <= len);
+
+  // copy the basic message to the buffer
+  hv_memcpy(r, m, len_r);
+
+  char *p = buffer + len_r; // points to the end of the base message
+  for (int i = 0; i < msg_getNumElements(m); ++i) {
+    if (msg_isSymbol(m,i)) {
+      const hv_size_t symLen = (hv_size_t) hv_strlen(msg_getSymbol(m,i)) + 1; // include the trailing null char
+      hv_assert(len_r + symLen <= len); // stay safe!
+      hv_strncpy(p, msg_getSymbol(m,i), symLen);
+      msg_setSymbol(r, i, p);
+      p += symLen;
+      len_r += symLen;
+    }
+  }
+
+  r->numBytes = (hv_uint16_t) len_r; // update the message size in memory
+}
+
+// the message is serialised such that all symbol elements are placed in order at the end of the buffer
+HvMessage *msg_copy(const HvMessage *m) {
+  const hv_uint32_t heapSize = msg_getSize(m);
+  char *r = (char *) hv_malloc(heapSize);
+  hv_assert(r != NULL);
+  msg_copyToBuffer(m, r, heapSize);
+  return (HvMessage *) r;
+}
+
+void msg_free(HvMessage *m) {
+  hv_free(m); // because heap messages are serialised in memory, a simple call to free releases the message
+}
+
+bool msg_hasFormat(const HvMessage *m, const char *fmt) {
+  hv_assert(fmt != NULL);
+  const int n = msg_getNumElements(m);
+  for (int i = 0; i < n; ++i) {
+    switch (fmt[i]) {
+      case 'b': if (!msg_isBang(m, i)) return false; break;
+      case 'f': if (!msg_isFloat(m, i)) return false; break;
+      case 'h': if (!msg_isHash(m, i)) return false; break;
+      case 's': if (!msg_isSymbol(m, i)) return false; break;
+      default: return false;
+    }
+  }
+  return (fmt[n] == '\0');
+}
+
+bool msg_compareSymbol(const HvMessage *m, int i, const char *s) {
+  switch (msg_getType(m,i)) {
+    case HV_MSG_SYMBOL: return !hv_strcmp(msg_getSymbol(m, i), s);
+    case HV_MSG_HASH: return (msg_getHash(m,i) == hv_string_to_hash(s));
+    default: return false;
+  }
+}
+
+bool msg_equalsElement(const HvMessage *m, int i_m, const HvMessage *n, int i_n) {
+  if (i_m < msg_getNumElements(m) && i_n < msg_getNumElements(n)) {
+    if (msg_getType(m, i_m) == msg_getType(n, i_n)) {
+      switch (msg_getType(m, i_m)) {
+        case HV_MSG_BANG: return true;
+        case HV_MSG_FLOAT: return (msg_getFloat(m, i_m) == msg_getFloat(n, i_n));
+        case HV_MSG_SYMBOL: return msg_compareSymbol(m, i_m, msg_getSymbol(n, i_n));
+        case HV_MSG_HASH: return msg_getHash(m,i_m) == msg_getHash(n,i_n);
+        default: break;
+      }
+    }
+  }
+  return false;
+}
+
+void msg_setElementToFrom(HvMessage *n, int i_n, const HvMessage *const m, int i_m) {
+  switch (msg_getType(m, i_m)) {
+    case HV_MSG_BANG: msg_setBang(n, i_n); break;
+    case HV_MSG_FLOAT: msg_setFloat(n, i_n, msg_getFloat(m, i_m)); break;
+    case HV_MSG_SYMBOL: msg_setSymbol(n, i_n, msg_getSymbol(m, i_m)); break;
+    case HV_MSG_HASH: msg_setHash(n, i_n, msg_getHash(m, i_m));
+    default: break;
+  }
+}
+
+hv_uint32_t msg_getHash(const HvMessage *const m, int i) {
+  hv_assert(i < msg_getNumElements(m)); // invalid index
+  switch (msg_getType(m,i)) {
+    case HV_MSG_BANG: return 0xFFFFFFFF;
+    case HV_MSG_FLOAT: {
+      float f = msg_getFloat(m,i);
+      return *((hv_uint32_t *) &f);
+    }
+    case HV_MSG_SYMBOL: return hv_string_to_hash(msg_getSymbol(m,i));
+    case HV_MSG_HASH: return (&(m->elem)+i)->data.h;
+    default: return 0;
+  }
+}
+
+char *msg_toString(const HvMessage *m) {
+  hv_assert(msg_getNumElements(m) > 0);
+  int *len = (int *) hv_alloca(msg_getNumElements(m)*sizeof(int));
+  int size = 0; // the total length of our final buffer
+
+  // loop through every element in our list of atoms
+  // first loop figures out how long our buffer should be
+  for (int i = 0; i < msg_getNumElements(m); i++) {
+    // length of our string is each atom plus a space, or \0 on the end
+    switch (msg_getType(m, i)) {
+      case HV_MSG_BANG: len[i] = hv_snprintf(NULL, 0, "%s", "bang") + 1; break;
+      case HV_MSG_FLOAT: len[i] = hv_snprintf(NULL, 0, "%g", msg_getFloat(m, i)) + 1; break;
+      case HV_MSG_SYMBOL: len[i] = hv_snprintf(NULL, 0, "%s", msg_getSymbol(m, i)) + 1; break;
+      case HV_MSG_HASH: len[i] = hv_snprintf(NULL, 0, "0x%X", msg_getHash(m, i)) + 1; break;
+      default: break;
+    }
+    size += len[i];
+  }
+
+  hv_assert(size > 0);
+
+  // now we do the piecewise concatenation into our final string
+  // the final buffer we will pass back after concatenating all strings - user should free it
+  char *finalString = (char *) hv_malloc(size*sizeof(char));
+  hv_assert(finalString != NULL);
+  int pos = 0;
+  for (int i = 0; i < msg_getNumElements(m); i++) {
+    // put a string representation of each atom into the final string
+    switch (msg_getType(m, i)) {
+      case HV_MSG_BANG: hv_snprintf(finalString+pos, len[i], "%s", "bang"); break;
+      case HV_MSG_FLOAT: hv_snprintf(finalString+pos, len[i], "%g", msg_getFloat(m, i)); break;
+      case HV_MSG_SYMBOL: hv_snprintf(finalString+pos, len[i], "%s", msg_getSymbol(m, i)); break;
+      case HV_MSG_HASH: hv_snprintf(finalString+pos, len[i], "0x%X", msg_getHash(m, i)); break;
+      default: break;
+    }
+    pos += len[i];
+    finalString[pos-1] = 32; // ASCII space
+  }
+  finalString[size-1] = '\0'; // ensure that the string is null terminated
+  return finalString;
+}

distrho/source/HvMessage.h

@@ -0,0 +1,183 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_MESSAGE_H_
+#define _HEAVY_MESSAGE_H_
+
+#include "HvUtils.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum ElementType {
+  HV_MSG_BANG = 0,
+  HV_MSG_FLOAT = 1,
+  HV_MSG_SYMBOL = 2,
+  HV_MSG_HASH = 3
+} ElementType;
+
+typedef struct Element {
+  ElementType type;
+  union {
+    float f; // float
+    const char *s; // symbol
+    hv_uint32_t h; // hash
+  } data;
+} Element;
+
+typedef struct HvMessage {
+  hv_uint32_t timestamp; // the sample at which this message should be processed
+  hv_uint16_t numElements;
+  hv_uint16_t numBytes; // the total number of bytes that this message occupies in memory, including strings
+  Element elem;
+} HvMessage;
+
+typedef struct ReceiverMessagePair {
+  hv_uint32_t receiverHash;
+  HvMessage msg;
+} ReceiverMessagePair;
+
+#define HV_MESSAGE_ON_STACK(_x) (HvMessage *) hv_alloca(msg_getCoreSize(_x))
+
+/** Returns the number of bytes that this message consumes in memory, not including strings. */
+static inline hv_size_t msg_getCoreSize(hv_size_t numElements) {
+  hv_assert(numElements > 0);
+  return sizeof(HvMessage) + ((numElements-1) * sizeof(Element));
+}
+
+HvMessage *msg_copy(const HvMessage *m);
+
+/** Copies the message into the given buffer. The buffer must be at least as large as msg_getNumHeapBytes(). */
+void msg_copyToBuffer(const HvMessage *m, char *buffer, hv_size_t len);
+
+void msg_setElementToFrom(HvMessage *n, int indexN, const HvMessage *const m, int indexM);
+
+/** Frees a message on the heap. Does nothing if argument is NULL. */
+void msg_free(HvMessage *m);
+
+HvMessage *msg_init(HvMessage *m, hv_size_t numElements, hv_uint32_t timestamp);
+
+HvMessage *msg_initWithFloat(HvMessage *m, hv_uint32_t timestamp, float f);
+
+HvMessage *msg_initWithBang(HvMessage *m, hv_uint32_t timestamp);
+
+HvMessage *msg_initWithSymbol(HvMessage *m, hv_uint32_t timestamp, const char *s);
+
+HvMessage *msg_initWithHash(HvMessage *m, hv_uint32_t timestamp, hv_uint32_t h);
+
+static inline hv_uint32_t msg_getTimestamp(const HvMessage *m) {
+  return m->timestamp;
+}
+
+static inline void msg_setTimestamp(HvMessage *m, hv_uint32_t timestamp) {
+  m->timestamp = timestamp;
+}
+
+static inline int msg_getNumElements(const HvMessage *m) {
+  return (int) m->numElements;
+}
+
+/** Returns the total number of bytes this message consumes in memory. */
+static inline hv_uint32_t msg_getSize(const HvMessage *m) {
+  return m->numBytes;
+}
+
+static inline ElementType msg_getType(const HvMessage *m, int index) {
+  hv_assert(index < msg_getNumElements(m)); // invalid index
+  return (&(m->elem)+index)->type;
+}
+
+static inline void msg_setBang(HvMessage *m, int index) {
+  hv_assert(index < msg_getNumElements(m)); // invalid index
+  (&(m->elem)+index)->type = HV_MSG_BANG;
+  (&(m->elem)+index)->data.s = NULL;
+}
+
+static inline bool msg_isBang(const HvMessage *m, int index) {
+  return (index < msg_getNumElements(m)) ? (msg_getType(m,index) == HV_MSG_BANG) : false;
+}
+
+static inline void msg_setFloat(HvMessage *m, int index, float f) {
+  hv_assert(index < msg_getNumElements(m)); // invalid index
+  (&(m->elem)+index)->type = HV_MSG_FLOAT;
+  (&(m->elem)+index)->data.f = f;
+}
+
+static inline float msg_getFloat(const HvMessage *const m, int index) {
+  hv_assert(index < msg_getNumElements(m)); // invalid index
+  return (&(m->elem)+index)->data.f;
+}
+
+static inline bool msg_isFloat(const HvMessage *const m, int index) {
+  return (index < msg_getNumElements(m)) ? (msg_getType(m,index) == HV_MSG_FLOAT) : false;
+}
+
+static inline void msg_setHash(HvMessage *m, int index, hv_uint32_t h) {
+  hv_assert(index < msg_getNumElements(m)); // invalid index
+  (&(m->elem)+index)->type = HV_MSG_HASH;
+  (&(m->elem)+index)->data.h = h;
+}
+
+static inline bool msg_isHash(const HvMessage *m, int index) {
+  return (index < msg_getNumElements(m)) ? (msg_getType(m, index) == HV_MSG_HASH) : false;
+}
+
+/** Returns true if the element is a hash or symbol. False otherwise. */
+static inline bool msg_isHashLike(const HvMessage *m, int index) {
+  return (index < msg_getNumElements(m)) ? ((msg_getType(m, index) == HV_MSG_HASH) || (msg_getType(m, index) == HV_MSG_SYMBOL)) : false;
+}
+
+/** Returns a 32-bit hash of the given element. */
+hv_uint32_t msg_getHash(const HvMessage *const m, int i);
+
+static inline void msg_setSymbol(HvMessage *m, int index, const char *s) {
+  hv_assert(index < msg_getNumElements(m)); // invalid index
+  hv_assert(s != NULL);
+  (&(m->elem)+index)->type = HV_MSG_SYMBOL;
+  (&(m->elem)+index)->data.s = s;
+  // NOTE(mhroth): if the same message container is reused and string reset,
+  // then the message size will be overcounted
+  m->numBytes += (hv_uint16_t) (hv_strlen(s) + 1); // also count '\0'
+}
+
+static inline const char *msg_getSymbol(const HvMessage *m, int index) {
+  hv_assert(index < msg_getNumElements(m)); // invalid index
+  return (&(m->elem)+index)->data.s;
+}
+
+static inline bool msg_isSymbol(const HvMessage *m, int index) {
+  return (index < msg_getNumElements(m)) ? (msg_getType(m, index) == HV_MSG_SYMBOL) : false;
+}
+
+bool msg_compareSymbol(const HvMessage *m, int i, const char *s);
+
+/** Returns 1 if the element i_m of message m is equal to element i_n of message n. */
+bool msg_equalsElement(const HvMessage *m, int i_m, const HvMessage *n, int i_n);
+
+bool msg_hasFormat(const HvMessage *m, const char *fmt);
+
+/**
+ * Create a string representation of the message. Suitable for use by the print object.
+ * The resulting string must be freed by the caller.
+ */
+char *msg_toString(const HvMessage *msg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _HEAVY_MESSAGE_H_

distrho/source/HvMessagePool.c

@@ -0,0 +1,144 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvMessagePool.h"
+#include "HvMessage.h"
+
+// the number of bytes reserved at a time from the pool
+#define MP_BLOCK_SIZE_BYTES 512
+
+#if HV_APPLE
+#pragma mark - MessageList
+#endif
+
+typedef struct MessageListNode {
+  char *p;
+  struct MessageListNode *next;
+} MessageListNode;
+
+static inline bool ml_hasAvailable(HvMessagePoolList *ml) {
+  return (ml->head != NULL);
+}
+
+static char *ml_pop(HvMessagePoolList *ml) {
+  MessageListNode *n = ml->head;
+  ml->head = n->next;
+  n->next = ml->pool;
+  ml->pool = n;
+  char *const p = n->p;
+  n->p = NULL; // set to NULL to make it clear that this node does not have a valid buffer
+  return p;
+}
+
+/** Push a MessageListNode with the given pointer onto the head of the queue. */
+static void ml_push(HvMessagePoolList *ml, void *p) {
+  MessageListNode *n = NULL;
+  if (ml->pool != NULL) {
+    // take an empty MessageListNode from the pool
+    n = ml->pool;
+    ml->pool = n->next;
+  } else {
+    // a MessageListNode is not available, allocate one
+    n = (MessageListNode *) hv_malloc(sizeof(MessageListNode));
+    hv_assert(n != NULL);
+  }
+  n->p = (char *) p;
+  n->next = ml->head;
+  ml->head = n; // push to the front of the queue
+}
+
+static void ml_free(HvMessagePoolList *ml) {
+  if (ml != NULL) {
+    while (ml_hasAvailable(ml)) {
+      ml_pop(ml);
+    }
+    while (ml->pool != NULL) {
+      MessageListNode *n = ml->pool;
+      ml->pool = n->next;
+      hv_free(n);
+    }
+  }
+}
+
+#if HV_APPLE
+#pragma mark - HvMessagePool
+#endif
+
+static hv_size_t mp_messagelistIndexForSize(hv_size_t byteSize) {
+  return (hv_size_t) hv_max_i((hv_min_max_log2((hv_uint32_t) byteSize) - 5), 0);
+}
+
+hv_size_t mp_init(HvMessagePool *mp, hv_size_t numKB) {
+  mp->bufferSize = numKB * 1024;
+  mp->buffer = (char *) hv_malloc(mp->bufferSize);
+  hv_assert(mp->buffer != NULL);
+  mp->bufferIndex = 0;
+
+  // initialise all message lists
+  for (int i = 0; i < MP_NUM_MESSAGE_LISTS; i++) {
+    mp->lists[i].head = NULL;
+    mp->lists[i].pool = NULL;
+  }
+
+  return mp->bufferSize;
+}
+
+void mp_free(HvMessagePool *mp) {
+  hv_free(mp->buffer);
+  for (int i = 0; i < MP_NUM_MESSAGE_LISTS; i++) {
+    ml_free(&mp->lists[i]);
+  }
+}
+
+void mp_freeMessage(HvMessagePool *mp, HvMessage *m) {
+  const hv_size_t b = msg_getSize(m); // the number of bytes that a message occupies in memory
+  const hv_size_t i = mp_messagelistIndexForSize(b); // the HvMessagePoolList index in the pool
+  HvMessagePoolList *ml = &mp->lists[i];
+  const hv_size_t chunkSize = 32 << i;
+  hv_memclear(m, chunkSize); // clear the chunk, just in case
+  ml_push(ml, m);
+}
+
+HvMessage *mp_addMessage(HvMessagePool *mp, const HvMessage *m) {
+  const hv_size_t b = msg_getSize(m);
+  // determine the message list index to allocate data from based on the msg size
+  // smallest chunk size is 32 bytes
+  const hv_size_t i = mp_messagelistIndexForSize(b);
+
+  hv_assert(i < MP_NUM_MESSAGE_LISTS); // how many chunk sizes do we want to support? 32, 64, 128, 256 at the moment
+  HvMessagePoolList *ml = &mp->lists[i];
+  const hv_size_t chunkSize = 32 << i;
+
+  if (ml_hasAvailable(ml)) {
+    char *buf = ml_pop(ml);
+    msg_copyToBuffer(m, buf, chunkSize);
+    return (HvMessage *) buf;
+  } else {
+    // if no appropriately sized buffer is immediately available, increase the size of the used buffer
+    const hv_size_t newIndex = mp->bufferIndex + MP_BLOCK_SIZE_BYTES;
+    hv_assert((newIndex <= mp->bufferSize) &&
+        "The message pool buffer size has been exceeded. The context cannot store more messages. "
+        "Try using the new_with_options() initialiser with a larger pool size (default is 10KB).");
+
+    for (hv_size_t j = mp->bufferIndex; j < newIndex; j += chunkSize) {
+      ml_push(ml, mp->buffer + j); // push new nodes onto the list with chunk pointers
+    }
+    mp->bufferIndex = newIndex;
+    char *buf = ml_pop(ml);
+    msg_copyToBuffer(m, buf, chunkSize);
+    return (HvMessage *) buf;
+  }
+}

distrho/source/HvMessagePool.h

@@ -0,0 +1,67 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _MESSAGE_POOL_H_
+#define _MESSAGE_POOL_H_
+
+#include "HvUtils.h"
+
+#define MP_NUM_MESSAGE_LISTS 4
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct HvMessagePoolList {
+  struct MessageListNode *head; // list of currently available blocks
+  struct MessageListNode *pool; // list of currently used blocks
+} HvMessagePoolList;
+
+typedef struct HvMessagePool {
+  char *buffer; // the buffer of all messages
+  hv_size_t bufferSize; // in bytes
+  hv_size_t bufferIndex; // the number of total reserved bytes
+
+  HvMessagePoolList lists[MP_NUM_MESSAGE_LISTS];
+} HvMessagePool;
+
+/**
+ * The HvMessagePool is a basic memory management system. It reserves a large block of memory at initialisation
+ * and proceeds to divide this block into smaller chunks (usually 512 bytes) as they are needed. These chunks are
+ * further divided into 32, 64, 128, or 256 sections. Each of these sections is managed by a HvMessagePoolList (MPL).
+ * An MPL is a linked-list data structure which is initialised such that its own pool of listnodes is filled with nodes
+ * that point at each subblock (e.g. each 32-byte block of a 512-block chunk).
+ *
+ * HvMessagePool is loosely inspired by TCMalloc. http://goog-perftools.sourceforge.net/doc/tcmalloc.html
+ */
+
+hv_size_t mp_init(struct HvMessagePool *mp, hv_size_t numKB);
+
+void mp_free(struct HvMessagePool *mp);
+
+/**
+ * Adds a message to the pool and returns a pointer to the copy. Returns NULL
+ * if no space was available in the pool.
+ */
+struct HvMessage *mp_addMessage(struct HvMessagePool *mp, const struct HvMessage *m);
+
+void mp_freeMessage(struct HvMessagePool *mp, struct HvMessage *m);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _MESSAGE_POOL_H_

distrho/source/HvMessageQueue.c

@@ -0,0 +1,215 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvMessageQueue.h"
+
+hv_size_t mq_initWithPoolSize(HvMessageQueue *q, hv_size_t poolSizeKB) {
+  hv_assert(poolSizeKB > 0);
+  q->head = NULL;
+  q->tail = NULL;
+  q->pool = NULL;
+  return mp_init(&q->mp, poolSizeKB);
+}
+
+void mq_free(HvMessageQueue *q) {
+  mq_clear(q);
+  while (q->pool != NULL) {
+    MessageNode *n = q->pool;
+    q->pool = q->pool->next;
+    hv_free(n);
+  }
+  mp_free(&q->mp);
+}
+
+static MessageNode *mq_getOrCreateNodeFromPool(HvMessageQueue *q) {
+  if (q->pool == NULL) {
+    // if necessary, create a new empty node
+    q->pool = (MessageNode *) hv_malloc(sizeof(MessageNode));
+    hv_assert(q->pool != NULL);
+    q->pool->next = NULL;
+  }
+  MessageNode *node = q->pool;
+  q->pool = q->pool->next;
+  return node;
+}
+
+int mq_size(HvMessageQueue *q) {
+  int size = 0;
+  MessageNode *n = q->head;
+  while (n != NULL) {
+    ++size;
+    n = n->next;
+  }
+  return size;
+}
+
+HvMessage *mq_addMessage(HvMessageQueue *q, const HvMessage *m, int let,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  MessageNode *node = mq_getOrCreateNodeFromPool(q);
+  node->m = mp_addMessage(&q->mp, m);
+  node->let = let;
+  node->sendMessage = sendMessage;
+  node->prev = NULL;
+  node->next = NULL;
+
+  if (q->tail != NULL) {
+    // the list already contains elements
+    q->tail->next = node;
+    node->prev = q->tail;
+    q->tail = node;
+  } else {
+    // the list is empty
+    node->prev = NULL;
+    q->head = node;
+    q->tail = node;
+  }
+  return mq_node_getMessage(node);
+}
+
+HvMessage *mq_addMessageByTimestamp(HvMessageQueue *q, const HvMessage *m, int let,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  if (mq_hasMessage(q)) {
+    MessageNode *n = mq_getOrCreateNodeFromPool(q);
+    n->m = mp_addMessage(&q->mp, m);
+    n->let = let;
+    n->sendMessage = sendMessage;
+
+    if (msg_getTimestamp(m) < msg_getTimestamp(q->head->m)) {
+      // the message occurs before the current head
+      n->next = q->head;
+      q->head->prev = n;
+      n->prev = NULL;
+      q->head = n;
+    } else if (msg_getTimestamp(m) >= msg_getTimestamp(q->tail->m)) {
+      // the message occurs after the current tail
+      n->next = NULL;
+      n->prev = q->tail;
+      q->tail->next = n;
+      q->tail = n;
+    } else {
+      // the message occurs somewhere between the head and tail
+      MessageNode *node = q->head;
+      while (node != NULL) {
+        if (msg_getTimestamp(m) < msg_getTimestamp(node->next->m)) {
+          MessageNode *r = node->next;
+          node->next = n;
+          n->next = r;
+          n->prev = node;
+          r->prev = n;
+          break;
+        }
+        node = node->next;
+      }
+    }
+    return n->m;
+  } else {
+    // add a message to the head
+    return mq_addMessage(q, m, let, sendMessage);
+  }
+}
+
+void mq_pop(HvMessageQueue *q) {
+  if (mq_hasMessage(q)) {
+    MessageNode *n = q->head;
+
+    mp_freeMessage(&q->mp, n->m);
+    n->m = NULL;
+
+    n->let = 0;
+    n->sendMessage = NULL;
+
+    q->head = n->next;
+    if (q->head == NULL) {
+      q->tail = NULL;
+    } else {
+      q->head->prev = NULL;
+    }
+    n->next = q->pool;
+    n->prev = NULL;
+    q->pool = n;
+  }
+}
+
+bool mq_removeMessage(HvMessageQueue *q, HvMessage *m, void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  if (mq_hasMessage(q)) {
+    if (mq_node_getMessage(q->head) == m) { // msg in head node
+      // only remove the message if sendMessage is the same as the stored one,
+      // if the sendMessage argument is NULL, it is not checked and will remove any matching message pointer
+      if (sendMessage == NULL || q->head->sendMessage == sendMessage) {
+        mq_pop(q);
+        return true;
+      }
+    } else {
+      MessageNode *prevNode = q->head;
+      MessageNode *currNode = q->head->next;
+      while ((currNode != NULL) && (currNode->m != m)) {
+        prevNode = currNode;
+        currNode = currNode->next;
+      }
+      if (currNode != NULL) {
+        if (sendMessage == NULL || currNode->sendMessage == sendMessage) {
+          mp_freeMessage(&q->mp, m);
+          currNode->m = NULL;
+          currNode->let = 0;
+          currNode->sendMessage = NULL;
+          if (currNode == q->tail) { // msg in tail node
+            prevNode->next = NULL;
+            q->tail = prevNode;
+          } else { // msg in middle node
+            prevNode->next = currNode->next;
+            currNode->next->prev = prevNode;
+          }
+          currNode->next = (q->pool == NULL) ? NULL : q->pool;
+          currNode->prev = NULL;
+          q->pool = currNode;
+          return true;
+        }
+      }
+    }
+  }
+  return false;
+}
+
+void mq_clear(HvMessageQueue *q) {
+  while (mq_hasMessage(q)) {
+    mq_pop(q);
+  }
+}
+
+void mq_clearAfter(HvMessageQueue *q, const hv_uint32_t timestamp) {
+  MessageNode *n = q->tail;
+  while (n != NULL && timestamp <= msg_getTimestamp(n->m)) {
+    // free the node's message
+    mp_freeMessage(&q->mp, n->m);
+    n->m = NULL;
+    n->let = 0;
+    n->sendMessage = NULL;
+
+    // the tail points at the previous node
+    q->tail = n->prev;
+
+    // put the node back in the pool
+    n->next = q->pool;
+    n->prev = NULL;
+    if (q->pool != NULL) q->pool->prev = n;
+    q->pool = n;
+
+    // update the tail node
+    n = q->tail;
+  }
+
+  if (q->tail == NULL) q->head = NULL;
+}

distrho/source/HvMessageQueue.h

@@ -0,0 +1,101 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _MESSAGE_QUEUE_H_
+#define _MESSAGE_QUEUE_H_
+
+#include "HvMessage.h"
+#include "HvMessagePool.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+class HeavyContextInterface;
+#else
+typedef struct HeavyContextInterface HeavyContextInterface;
+#endif
+
+typedef struct MessageNode {
+  struct MessageNode *prev; // doubly linked list
+  struct MessageNode *next;
+  HvMessage *m;
+  void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *);
+  int let;
+} MessageNode;
+
+/** A doubly linked list containing scheduled messages. */
+typedef struct HvMessageQueue {
+  MessageNode *head; // the head of the queue
+  MessageNode *tail; // the tail of the queue
+  MessageNode *pool; // the head of the reserve pool
+  HvMessagePool mp;
+} HvMessageQueue;
+
+hv_size_t mq_initWithPoolSize(HvMessageQueue *q, hv_size_t poolSizeKB);
+
+void mq_free(HvMessageQueue *q);
+
+int mq_size(HvMessageQueue *q);
+
+static inline HvMessage *mq_node_getMessage(MessageNode *n) {
+  return n->m;
+}
+
+static inline int mq_node_getLet(MessageNode *n) {
+  return n->let;
+}
+
+static inline bool mq_hasMessage(HvMessageQueue *q) {
+  return (q->head != NULL);
+}
+
+// true if there is a message and it occurs before (<) timestamp
+static inline bool mq_hasMessageBefore(HvMessageQueue *const q, const hv_uint32_t timestamp) {
+  return mq_hasMessage(q) && (msg_getTimestamp(mq_node_getMessage(q->head)) < timestamp);
+}
+
+static inline MessageNode *mq_peek(HvMessageQueue *q) {
+  return q->head;
+}
+
+/** Appends the message to the end of the queue. */
+HvMessage *mq_addMessage(HvMessageQueue *q, const HvMessage *m, int let,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+/** Insert in ascending order the message acccording to its timestamp. */
+HvMessage *mq_addMessageByTimestamp(HvMessageQueue *q, const HvMessage *m, int let,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+/** Pop the message at the head of the queue (and free its memory). */
+void mq_pop(HvMessageQueue *q);
+
+/** Remove a message from the queue (and free its memory) */
+bool mq_removeMessage(HvMessageQueue *q, HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+/** Clears (and frees) all messages in the queue. */
+void mq_clear(HvMessageQueue *q);
+
+/** Removes all messages occuring at or after the given timestamp. */
+void mq_clearAfter(HvMessageQueue *q, const hv_uint32_t timestamp);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _MESSAGE_QUEUE_H_

distrho/source/HvSignalDel1.c

@@ -0,0 +1,46 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvSignalDel1.h"
+
+hv_size_t sDel1_init(SignalDel1 *o) {
+#if HV_SIMD_AVX
+  o->x = _mm256_setzero_ps();
+#elif HV_SIMD_SSE
+  o->x = _mm_setzero_ps();
+#elif HV_SIMD_NEON
+  o->x = vdupq_n_f32(0.0f);
+#else
+  o->x = 0.0f;
+#endif
+  return 0;
+}
+
+void sDel1_onMessage(HeavyContextInterface *_c, SignalDel1 *o, int letIn, const HvMessage *m) {
+  if (letIn == 2) {
+    if (msg_compareSymbol(m, 0, "clear")) {
+#if HV_SIMD_AVX
+      o->x = _mm256_setzero_ps();
+#elif HV_SIMD_SSE
+      o->x = _mm_setzero_ps();
+#elif HV_SIMD_NEON
+      o->x = vdupq_n_f32(0.0f);
+#else
+      o->x = 0.0f;
+#endif
+    }
+  }
+}

distrho/source/HvSignalDel1.h

@@ -0,0 +1,57 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _SIGNAL_DEL1_H_
+#define _SIGNAL_DEL1_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SignalDel1 {
+  hv_bufferf_t x;
+} SignalDel1;
+
+hv_size_t sDel1_init(SignalDel1 *o);
+
+void sDel1_onMessage(HeavyContextInterface *_c, SignalDel1 *o, int letIn, const HvMessage *m);
+
+static inline void __hv_del1_f(SignalDel1 *o, hv_bInf_t bIn0, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  __m256 x = _mm256_permute_ps(bIn0, _MM_SHUFFLE(2,1,0,3)); // [3 0 1 2 7 4 5 6]
+  __m256 n = _mm256_permute2f128_ps(o->x,x,0x1);            // [h e f g 3 0 1 2]
+  *bOut = _mm256_blend_ps(x, n, 0x11);                      // [h 0 1 2 3 4 5 6]
+  o->x = x;
+#elif HV_SIMD_SSE
+  __m128 n = _mm_blend_ps(o->x, bIn0, 0x7);
+  *bOut = _mm_shuffle_ps(n, n, _MM_SHUFFLE(2,1,0,3));
+  o->x = bIn0;
+#elif HV_SIMD_NEON
+  *bOut = vextq_f32(o->x, bIn0, 3);
+  o->x = bIn0;
+#else
+  *bOut = o->x;
+  o->x = bIn0;
+#endif
+}
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _SIGNAL_DEL1_H_

distrho/source/HvSignalLine.c

@@ -0,0 +1,139 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvSignalLine.h"
+
+hv_size_t sLine_init(SignalLine *o) {
+#if HV_SIMD_AVX
+  o->n = _mm_setzero_si128();
+  o->x = _mm256_setzero_ps();
+  o->m = _mm256_setzero_ps();
+  o->t = _mm256_setzero_ps();
+#elif HV_SIMD_SSE
+  o->n = _mm_setzero_si128();
+  o->x = _mm_setzero_ps();
+  o->m = _mm_setzero_ps();
+  o->t = _mm_setzero_ps();
+#elif HV_SIMD_NEON
+  o->n = vdupq_n_s32(0);
+  o->x = vdupq_n_f32(0.0f);
+  o->m = vdupq_n_f32(0.0f);
+  o->t = vdupq_n_f32(0.0f);
+#else // HV_SIMD_NONE
+  o->n = 0;
+  o->x = 0.0f;
+  o->m = 0.0f;
+  o->t = 0.0f;
+#endif
+  return 0;
+}
+
+void sLine_onMessage(HeavyContextInterface *_c, SignalLine *o, int letIn,
+  const HvMessage *m, void *sendMessage) {
+  if (msg_isFloat(m,0)) {
+    if (msg_isFloat(m,1)) {
+      // new ramp
+      int n = (int) hv_millisecondsToSamples(_c, msg_getFloat(m,1));
+#if HV_SIMD_AVX
+      float x = (o->n[1] > 0) ? (o->x[7] + (o->m[7]/8.0f)) : o->t[7]; // current output value
+      float s = (msg_getFloat(m,0) - x) / ((float) n); // slope per sample
+      o->n = _mm_set_epi32(n-3, n-2, n-1, n);
+      o->x = _mm256_set_ps(x+7.0f*s, x+6.0f*s, x+5.0f*s, x+4.0f*s, x+3.0f*s, x+2.0f*s, x+s, x);
+      o->m = _mm256_set1_ps(8.0f*s);
+      o->t = _mm256_set1_ps(msg_getFloat(m,0));
+#elif HV_SIMD_SSE
+      const hv_int32_t *const on = (hv_int32_t *) &o->n;
+      const float *const ox = (float *) &o->x;
+      const float *const om = (float *) &o->m;
+      const float *const ot = (float *) &o->t;
+
+      float x = (on[3] > 0) ? (ox[3] + (om[3]/4.0f)) : ot[3];
+      float s = (msg_getFloat(m,0) - x) / ((float) n); // slope per sample
+      o->n = _mm_set_epi32(n-3, n-2, n-1, n);
+      o->x = _mm_set_ps(x+3.0f*s, x+2.0f*s, x+s, x);
+      o->m = _mm_set1_ps(4.0f*s);
+      o->t = _mm_set1_ps(msg_getFloat(m,0));
+#elif HV_SIMD_NEON
+      float x = (o->n[3] > 0) ? (o->x[3] + (o->m[3]/4.0f)) : o->t[3];
+      float s = (msg_getFloat(m,0) - x) / ((float) n);
+      o->n = (int32x4_t) {n, n-1, n-2, n-3};
+      o->x = (float32x4_t) {x, x+s, x+2.0f*s, x+3.0f*s};
+      o->m = vdupq_n_f32(4.0f*s);
+      o->t = vdupq_n_f32(msg_getFloat(m,0));
+#else // HV_SIMD_NONE
+      o->x = (o->n > 0) ? (o->x + o->m) : o->t; // new current value
+      o->n = n; // new distance to target
+      o->m = (msg_getFloat(m,0) - o->x) / ((float) n); // slope per sample
+      o->t = msg_getFloat(m,0);
+#endif
+    } else {
+      // Jump to value
+#if HV_SIMD_AVX
+      o->n = _mm_setzero_si128();
+      o->x = _mm256_set1_ps(msg_getFloat(m,0));
+      o->m = _mm256_setzero_ps();
+      o->t = _mm256_set1_ps(msg_getFloat(m,0));
+#elif HV_SIMD_SSE
+      o->n = _mm_setzero_si128();
+      o->x = _mm_set1_ps(msg_getFloat(m,0));
+      o->m = _mm_setzero_ps();
+      o->t = _mm_set1_ps(msg_getFloat(m,0));
+#elif HV_SIMD_NEON
+      o->n = vdupq_n_s32(0);
+      o->x = vdupq_n_f32(msg_getFloat(m,0));
+      o->m = vdupq_n_f32(0.0f);
+      o->t = vdupq_n_f32(msg_getFloat(m,0));
+#else // HV_SIMD_NONE
+      o->n = 0;
+      o->x = msg_getFloat(m,0);
+      o->m = 0.0f;
+      o->t = msg_getFloat(m,0);
+#endif
+    }
+  } else if (msg_compareSymbol(m,0,"stop")) {
+    // Stop line at current position
+#if HV_SIMD_AVX
+    // note o->n[1] is a 64-bit integer; two packed 32-bit ints. We only want to know if the high int is positive,
+    // which can be done simply by testing the long int for positiveness.
+    float x = (o->n[1] > 0) ? (o->x[7] + (o->m[7]/8.0f)) : o->t[7];
+    o->n = _mm_setzero_si128();
+    o->x = _mm256_set1_ps(x);
+    o->m = _mm256_setzero_ps();
+    o->t = _mm256_set1_ps(x);
+#elif HV_SIMD_SSE
+    const hv_int32_t *const on = (hv_int32_t *) &o->n;
+    const float *const ox = (float *) &o->x;
+    const float *const om = (float *) &o->m;
+    const float *const ot = (float *) &o->t;
+    float x = (on[3] > 0) ? (ox[3] + (om[3]/4.0f)) : ot[3];
+    o->n = _mm_setzero_si128();
+    o->x = _mm_set1_ps(x);
+    o->m = _mm_setzero_ps();
+    o->t = _mm_set1_ps(x);
+#elif HV_SIMD_NEON
+    float x = (o->n[3] > 0) ? (o->x[3] + (o->m[3]/4.0f)) : o->t[3];
+    o->n = vdupq_n_s32(0);
+    o->x = vdupq_n_f32(x);
+    o->m = vdupq_n_f32(0.0f);
+    o->t = vdupq_n_f32(x);
+#else // HV_SIMD_NONE
+    o->n = 0;
+    o->x += o->m;
+    o->m = 0.0f;
+    o->t = o->x;
+#endif
+  }
+}

distrho/source/HvSignalLine.h

@@ -0,0 +1,88 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _SIGNAL_LINE_H_
+#define _SIGNAL_LINE_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SignalLine {
+#if HV_SIMD_AVX
+  __m128i n; // remaining samples to target
+#else
+  hv_bufferi_t n; // remaining samples to target
+#endif
+  hv_bufferf_t x; // current output
+  hv_bufferf_t m; // increment
+  hv_bufferf_t t; // target value
+} SignalLine;
+
+hv_size_t sLine_init(SignalLine *o);
+
+static inline void __hv_line_f(SignalLine *o, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  __m128i n = o->n;
+  __m128i masklo = _mm_cmplt_epi32(n, _mm_setzero_si128()); // n < 0
+  n = _mm_sub_epi32(n, _mm_set1_epi32(4)); // subtract HV_N_SIMD from remaining samples
+  __m128i maskhi = _mm_cmplt_epi32(n, _mm_setzero_si128());
+  o->n = _mm_sub_epi32(n, _mm_set1_epi32(4));
+  __m256 mask = _mm256_insertf128_ps(_mm256_castps128_ps256(_mm_castsi128_ps(masklo)), _mm_castsi128_ps(maskhi), 1);
+
+  __m256 x = o->x;
+  *bOut = _mm256_or_ps(_mm256_and_ps(mask, o->t), _mm256_andnot_ps(mask, x));
+
+  // add slope from sloped samples
+  o->x = _mm256_add_ps(x, o->m);
+#elif HV_SIMD_SSE
+  __m128i n = o->n;
+  __m128 mask = _mm_castsi128_ps(_mm_cmplt_epi32(n, _mm_setzero_si128())); // n < 0
+
+  __m128 x = o->x;
+  *bOut = _mm_or_ps(_mm_and_ps(mask, o->t), _mm_andnot_ps(mask, x));
+
+  // subtract HV_N_SIMD from remaining samples
+  o->n = _mm_sub_epi32(n, _mm_set1_epi32(HV_N_SIMD));
+
+  // add slope from sloped samples
+  o->x = _mm_add_ps(x, o->m);
+#elif HV_SIMD_NEON
+  int32x4_t n = o->n;
+  int32x4_t mask = vreinterpretq_s32_u32(vcltq_s32(n, vdupq_n_s32(0)));
+  float32x4_t x = o->x;
+  *bOut = vreinterpretq_f32_s32(vorrq_s32(
+      vandq_s32(mask, vreinterpretq_s32_f32(o->t)),
+      vbicq_s32(vreinterpretq_s32_f32(x), mask)));
+  o->n = vsubq_s32(n, vdupq_n_s32(HV_N_SIMD));
+  o->x = vaddq_f32(x, o->m);
+#else // HV_SIMD_NONE
+  *bOut = (o->n < 0) ? o->t : o->x;
+  o->n -= HV_N_SIMD;
+  o->x += o->m;
+#endif
+}
+
+void sLine_onMessage(HeavyContextInterface *_c, SignalLine *o, int letIndex,
+    const HvMessage *m, void *sendMessage);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _SIGNAL_LINE_H_

distrho/source/HvSignalPhasor.c

@@ -0,0 +1,141 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvSignalPhasor.h"
+
+#define HV_PHASOR_2_32 4294967296.0
+
+#if HV_SIMD_AVX
+static void sPhasor_updatePhase(SignalPhasor *o, float p) {
+  o->phase = _mm256_set1_ps(p+1.0f); // o->phase is in range [1,2]
+#elif HV_SIMD_SSE
+  static void sPhasor_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+    o->phase = _mm_set1_epi32(p);
+#elif HV_SIMD_NEON
+  static void sPhasor_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+    o->phase =  vdupq_n_u32(p);
+#else // HV_SIMD_NONE
+  static void sPhasor_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+    o->phase = p;
+#endif
+}
+
+// input phase is in the range of [0,1]. It is independent of o->phase.
+#if HV_SIMD_AVX
+static void sPhasor_k_updatePhase(SignalPhasor *o, float p) {
+  o->phase = _mm256_set_ps(
+      p+1.0f+7.0f*o->step.f2sc, p+1.0f+6.0f*o->step.f2sc,
+      p+1.0f+5.0f*o->step.f2sc, p+1.0f+4.0f*o->step.f2sc,
+      p+1.0f+3.0f*o->step.f2sc, p+1.0f+2.0f*o->step.f2sc,
+      p+1.0f+o->step.f2sc,      p+1.0f);
+
+  // ensure that o->phase is still in range [1,2]
+  o->phase = _mm256_or_ps(_mm256_andnot_ps(
+      _mm256_set1_ps(-INFINITY), o->phase), _mm256_set1_ps(1.0f));
+#elif HV_SIMD_SSE
+static void sPhasor_k_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+  o->phase = _mm_set_epi32(3*o->step.s+p, 2*o->step.s+p, o->step.s+p, p);
+#elif HV_SIMD_NEON
+static void sPhasor_k_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+  o->phase = (uint32x4_t) {p, o->step.s+p, 2*o->step.s+p, 3*o->step.s+p};
+#else // HV_SIMD_NONE
+static void sPhasor_k_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+  o->phase = p;
+#endif
+}
+
+static void sPhasor_k_updateFrequency(SignalPhasor *o, float f, double r) {
+#if HV_SIMD_AVX
+  o->step.f2sc = (float) (f/r);
+  o->inc = _mm256_set1_ps((float) (8.0f*f/r));
+  sPhasor_k_updatePhase(o, o->phase[0]);
+#elif HV_SIMD_SSE
+  o->step.s = (hv_int32_t) (f*(HV_PHASOR_2_32/r));
+  o->inc = _mm_set1_epi32(4*o->step.s);
+  const hv_uint32_t *const p = (hv_uint32_t *) &o->phase;
+  sPhasor_k_updatePhase(o, p[0]);
+#elif HV_SIMD_NEON
+  o->step.s = (hv_int32_t) (f*(HV_PHASOR_2_32/r));
+  o->inc = vdupq_n_s32(4*o->step.s);
+  sPhasor_k_updatePhase(o, vgetq_lane_u32(o->phase, 0));
+#else // HV_SIMD_NONE
+  o->step.s = (hv_int32_t) (f*(HV_PHASOR_2_32/r));
+  o->inc = o->step.s;
+  // no need to update phase
+#endif
+}
+
+hv_size_t sPhasor_init(SignalPhasor *o, double samplerate) {
+#if HV_SIMD_AVX
+  o->phase = _mm256_set1_ps(1.0f);
+  o->inc = _mm256_setzero_ps();
+  o->step.f2sc = (float) (1.0/samplerate);
+#elif HV_SIMD_SSE
+  o->phase = _mm_setzero_si128();
+  o->inc = _mm_setzero_si128();
+  o->step.f2sc = (float) (HV_PHASOR_2_32/samplerate);
+#elif HV_SIMD_NEON
+  o->phase = vdupq_n_u32(0);
+  o->inc = vdupq_n_s32(0);
+  o->step.f2sc = (float) (HV_PHASOR_2_32/samplerate);
+#else // HV_SIMD_NONE
+  o->phase = 0;
+  o->inc = 0;
+  o->step.f2sc = (float) (HV_PHASOR_2_32/samplerate);
+#endif
+  return 0;
+}
+
+void sPhasor_onMessage(HeavyContextInterface *_c, SignalPhasor *o, int letIn, const HvMessage *m) {
+  if (letIn == 1) {
+    if (msg_isFloat(m,0)) {
+      float p = msg_getFloat(m,0);
+      while (p < 0.0f) p += 1.0f; // wrap phase to [0,1]
+      while (p > 1.0f) p -= 1.0f;
+#if HV_SIMD_AVX
+      sPhasor_updatePhase(o, p);
+#else // HV_SIMD_SSE || HV_SIMD_NEON || HV_SIMD_NONE
+      sPhasor_updatePhase(o, (hv_uint32_t) (p * HV_PHASOR_2_32));
+#endif
+    }
+  }
+}
+
+hv_size_t sPhasor_k_init(SignalPhasor *o, float frequency, double samplerate) {
+  __hv_zero_i((hv_bOuti_t) &o->phase);
+  sPhasor_k_updateFrequency(o, frequency, samplerate);
+  return 0;
+}
+
+void sPhasor_k_onMessage(HeavyContextInterface *_c, SignalPhasor *o, int letIn, const HvMessage *m) {
+  if (msg_isFloat(m,0)) {
+    switch (letIn) {
+      case 0: sPhasor_k_updateFrequency(o, msg_getFloat(m,0), hv_getSampleRate(_c)); break;
+      case 1: {
+        float p = msg_getFloat(m,0);
+        while (p < 0.0f) p += 1.0f; // wrap phase to [0,1]
+        while (p > 1.0f) p -= 1.0f;
+#if HV_SIMD_AVX
+        sPhasor_k_updatePhase(o, p);
+#else // HV_SIMD_SSE || HV_SIMD_NEON || HV_SIMD_NONE
+        sPhasor_k_updatePhase(o, (hv_uint32_t) (p * HV_PHASOR_2_32));
+#endif
+        break;
+      }
+      default: break;
+    }
+  }
+}

distrho/source/HvSignalPhasor.h

@@ -0,0 +1,139 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_SIGNAL_PHASOR_H_
+#define _HEAVY_SIGNAL_PHASOR_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SignalPhasor {
+#if HV_SIMD_AVX
+  __m256 phase; // current phase
+  __m256 inc;   // phase increment
+#elif HV_SIMD_SSE
+  __m128i phase;
+  __m128i inc;
+#elif HV_SIMD_NEON
+  uint32x4_t phase;
+  int32x4_t inc;
+#else // HV_SIMD_NONE
+  hv_uint32_t phase;
+  hv_int32_t inc;
+#endif
+  union {
+    float f2sc; // float to step conversion (used for __phasor~f)
+    hv_int32_t s; // step value (used for __phasor_k~f)
+  } step;
+} SignalPhasor;
+
+hv_size_t sPhasor_init(SignalPhasor *o, double samplerate);
+
+hv_size_t sPhasor_k_init(SignalPhasor *o, float frequency, double samplerate);
+
+void sPhasor_k_onMessage(HeavyContextInterface *_c, SignalPhasor *o, int letIn, const HvMessage *m);
+
+void sPhasor_onMessage(HeavyContextInterface *_c, SignalPhasor *o, int letIn, const HvMessage *m);
+
+static inline void __hv_phasor_f(SignalPhasor *o, hv_bInf_t bIn, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  __m256 p = _mm256_mul_ps(bIn, _mm256_set1_ps(o->step.f2sc)); // a b c d e f g h
+
+  __m256 z = _mm256_setzero_ps();
+
+  // http://stackoverflow.com/questions/11906814/how-to-rotate-an-sse-avx-vector
+  __m256 a = _mm256_permute_ps(p, _MM_SHUFFLE(2,1,0,3)); // d a b c h e f g
+  __m256 b = _mm256_permute2f128_ps(a, a, 0x01);         // h e f g d a b c
+  __m256 c = _mm256_blend_ps(a, b, 0x10);                // d a b c d e f g
+  __m256 d = _mm256_blend_ps(c, z, 0x01);                // 0 a b c d e f g
+  __m256 e = _mm256_add_ps(p, d); // a (a+b) (b+c) (c+d) (d+e) (e+f) (f+g) (g+h)
+
+  __m256 f = _mm256_permute_ps(e, _MM_SHUFFLE(1,0,3,2)); // (b+c) (c+d) a (a+b) (f+g) (g+h) (d+e) (e+f)
+  __m256 g = _mm256_permute2f128_ps(f, f, 0x01);         // (f+g) (g+h) (d+e) (e+f) (b+c) (c+d) a (a+b)
+  __m256 h = _mm256_blend_ps(f, g, 0x33);                // (b+c) (c+d) a (a+b) (b+c) (c+d) (d+e) (e+f)
+  __m256 i = _mm256_blend_ps(h, z, 0x03);                // 0 0 a (a+b) (b+c) (c+d) (d+e) (e+f)
+  __m256 j = _mm256_add_ps(e, i); // a (a+b) (a+b+c) (a+b+c+d) (b+c+d+e) (c+d+e+f) (d+e+f+g) (e+f+g+h)
+
+  __m256 k = _mm256_permute2f128_ps(j, z, 0x02);         // 0 0 0 0 a (a+b) (a+b+c) (a+b+c+d) (b+c+d+e)
+  __m256 m = _mm256_add_ps(j, k); // a (a+b) (a+b+c) (a+b+c+d) (a+b+c+d+e) (a+b+c+d+e+f) (a+b+c+d+e+f+g) (a+b+c+d+e+f+g+h)
+
+  __m256 n = _mm256_or_ps(_mm256_andnot_ps(
+      _mm256_set1_ps(-INFINITY),
+      _mm256_add_ps(o->phase, m)),
+      _mm256_set1_ps(1.0f));
+
+  *bOut = _mm256_sub_ps(n, _mm256_set1_ps(1.0f));
+
+  __m256 x = _mm256_permute_ps(n, _MM_SHUFFLE(3,3,3,3));
+  o->phase = _mm256_permute2f128_ps(x, x, 0x11);
+#elif HV_SIMD_SSE
+  __m128i p = _mm_cvtps_epi32(_mm_mul_ps(bIn, _mm_set1_ps(o->step.f2sc))); // convert frequency to step
+  p = _mm_add_epi32(p, _mm_slli_si128(p, 4)); // add incremental steps to phase (prefix sum)
+  p = _mm_add_epi32(p, _mm_slli_si128(p, 8)); // http://stackoverflow.com/questions/10587598/simd-prefix-sum-on-intel-cpu?rq=1
+  p = _mm_add_epi32(o->phase, p);
+  *bOut = _mm_sub_ps(_mm_castsi128_ps(
+      _mm_or_si128(_mm_srli_epi32(p, 9),
+      _mm_set_epi32(0x3F800000, 0x3F800000, 0x3F800000, 0x3F800000))),
+      _mm_set1_ps(1.0f));
+  o->phase = _mm_shuffle_epi32(p, _MM_SHUFFLE(3,3,3,3));
+#elif HV_SIMD_NEON
+  int32x4_t p = vcvtq_s32_f32(vmulq_n_f32(bIn, o->step.f2sc));
+  p = vaddq_s32(p, vextq_s32(vdupq_n_s32(0), p, 3)); // http://stackoverflow.com/questions/11259596/arm-neon-intrinsics-rotation
+  p = vaddq_s32(p, vextq_s32(vdupq_n_s32(0), p, 2));
+  uint32x4_t pp = vaddq_u32(o->phase, vreinterpretq_u32_s32(p));
+  *bOut = vsubq_f32(vreinterpretq_f32_u32(vorrq_u32(vshrq_n_u32(pp, 9), vdupq_n_u32(0x3F800000))), vdupq_n_f32(1.0f));
+  o->phase = vdupq_n_u32(pp[3]);
+#else // HV_SIMD_NONE
+  const hv_uint32_t p = (o->phase >> 9) | 0x3F800000;
+  *bOut = *((float *) (&p)) - 1.0f;
+  o->phase += ((int) (bIn * o->step.f2sc));
+#endif
+}
+
+static inline void __hv_phasor_k_f(SignalPhasor *o, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_sub_ps(o->phase, _mm256_set1_ps(1.0f));
+  o->phase = _mm256_or_ps(_mm256_andnot_ps(
+      _mm256_set1_ps(-INFINITY),
+      _mm256_add_ps(o->phase, o->inc)),
+      _mm256_set1_ps(1.0f));
+#elif HV_SIMD_SSE
+  *bOut = _mm_sub_ps(_mm_castsi128_ps(
+      _mm_or_si128(_mm_srli_epi32(o->phase, 9),
+      _mm_set_epi32(0x3F800000, 0x3F800000, 0x3F800000, 0x3F800000))),
+      _mm_set1_ps(1.0f));
+  o->phase = _mm_add_epi32(o->phase, o->inc);
+#elif HV_SIMD_NEON
+  *bOut = vsubq_f32(vreinterpretq_f32_u32(
+      vorrq_u32(vshrq_n_u32(o->phase, 9),
+      vdupq_n_u32(0x3F800000))),
+      vdupq_n_f32(1.0f));
+  o->phase = vaddq_u32(o->phase, vreinterpretq_u32_s32(o->inc));
+#else // HV_SIMD_NONE
+  const hv_uint32_t p = (o->phase >> 9) | 0x3F800000;
+  *bOut = *((float *) (&p)) - 1.0f;
+  o->phase += o->inc;
+#endif
+}
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_SIGNAL_PHASOR_H_

distrho/source/HvSignalRPole.c

@@ -0,0 +1,52 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvSignalRPole.h"
+
+hv_size_t sRPole_init(SignalRPole *o) {
+#if HV_SIMD_AVX
+  sDel1_init(&o->sDel1_fxiLN);
+  sDel1_init(&o->sDel1_kjkpV);
+  sDel1_init(&o->sDel1_dkIWc);
+  sDel1_init(&o->sDel1_bVeoW);
+  sDel1_init(&o->sDel1_PulZn);
+  sDel1_init(&o->sDel1_yTFig);
+  sDel1_init(&o->sDel1_Is9Qf);
+  sDel1_init(&o->sDel1_LIyNt);
+  sDel1_init(&o->sDel1_VqpU3);
+  sDel1_init(&o->sDel1_ZVYeg);
+  sDel1_init(&o->sDel1_IVAZh);
+  sDel1_init(&o->sDel1_F8WrY);
+  sDel1_init(&o->sDel1_rkFMy);
+  sDel1_init(&o->sDel1_BeqSK);
+  __hv_zero_f(&o->ym);
+#elif HV_SIMD_SSE || HV_SIMD_NEON
+  sDel1_init(&o->sDel1_i8Twk);
+  sDel1_init(&o->sDel1_KYibU);
+  sDel1_init(&o->sDel1_spa5V);
+  sDel1_init(&o->sDel1_3HXdb);
+  sDel1_init(&o->sDel1_Aj1oK);
+  sDel1_init(&o->sDel1_jNX1g);
+  __hv_zero_f(&o->ym);
+#else
+  o->ym = 0.0f;
+#endif
+  return 0;
+}
+
+void sRPole_onMessage(HeavyContextInterface *_c, SignalRPole *o, int letIn, const HvMessage *m) {
+  // TODO
+}

distrho/source/HvSignalRPole.h

@@ -0,0 +1,130 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _SIGNAL_RPOLE_H_
+#define _SIGNAL_RPOLE_H_
+
+#include "HvHeavyInternal.h"
+#include "HvSignalDel1.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// implements y[n] = x[n] - a*y[n-1]
+// H(z) = 1/(1+a*z^-1)
+typedef struct SignalRPole {
+#if HV_SIMD_AVX
+  SignalDel1 sDel1_fxiLN;
+  SignalDel1 sDel1_kjkpV;
+  SignalDel1 sDel1_dkIWc;
+  SignalDel1 sDel1_bVeoW;
+  SignalDel1 sDel1_PulZn;
+  SignalDel1 sDel1_yTFig;
+  SignalDel1 sDel1_Is9Qf;
+  SignalDel1 sDel1_LIyNt;
+  SignalDel1 sDel1_VqpU3;
+  SignalDel1 sDel1_ZVYeg;
+  SignalDel1 sDel1_IVAZh;
+  SignalDel1 sDel1_F8WrY;
+  SignalDel1 sDel1_rkFMy;
+  SignalDel1 sDel1_BeqSK;
+  hv_bufferf_t ym;
+#elif HV_SIMD_SSE || HV_SIMD_NEON
+  SignalDel1 sDel1_i8Twk;
+  SignalDel1 sDel1_KYibU;
+  SignalDel1 sDel1_spa5V;
+  SignalDel1 sDel1_3HXdb;
+  SignalDel1 sDel1_Aj1oK;
+  SignalDel1 sDel1_jNX1g;
+  hv_bufferf_t ym;
+#else
+  hv_bufferf_t ym;
+#endif
+} SignalRPole;
+
+hv_size_t sRPole_init(SignalRPole *o);
+
+void sRPole_onMessage(HeavyContextInterface *_c, SignalRPole *o, int letIn, const HvMessage *m);
+
+static inline void __hv_rpole_f(SignalRPole *o, hv_bInf_t bIn0, hv_bInf_t bIn1, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  hv_bufferf_t a, b, c, d, e, f, g, i, j, k, l, m, n;
+  __hv_del1_f(&o->sDel1_fxiLN, bIn1, &a);
+  __hv_mul_f(bIn1, a, &b);
+  __hv_del1_f(&o->sDel1_kjkpV, a, &a);
+  __hv_mul_f(b, a, &c);
+  __hv_del1_f(&o->sDel1_dkIWc, a, &a);
+  __hv_mul_f(c, a, &d);
+  __hv_del1_f(&o->sDel1_bVeoW, a, &a);
+  __hv_mul_f(d, a, &e);
+  __hv_del1_f(&o->sDel1_PulZn, a, &a);
+  __hv_mul_f(e, a, &f);
+  __hv_del1_f(&o->sDel1_yTFig, a, &a);
+  __hv_mul_f(f, a, &g);
+  __hv_del1_f(&o->sDel1_Is9Qf, a, &a);
+  __hv_mul_f(g, a, &a);
+  __hv_del1_f(&o->sDel1_LIyNt, bIn0, &i);
+  __hv_del1_f(&o->sDel1_VqpU3, i, &j);
+  __hv_del1_f(&o->sDel1_ZVYeg, j, &k);
+  __hv_del1_f(&o->sDel1_IVAZh, k, &l);
+  __hv_del1_f(&o->sDel1_F8WrY, l, &m);
+  __hv_del1_f(&o->sDel1_rkFMy, m, &n);
+  __hv_mul_f(i, bIn1, &i);
+  __hv_sub_f(bIn0, i, &i);
+  __hv_fma_f(j, b, i, &i);
+  __hv_mul_f(k, c, &c);
+  __hv_sub_f(i, c, &c);
+  __hv_fma_f(l, d, c, &c);
+  __hv_mul_f(m, e, &e);
+  __hv_sub_f(c, e, &e);
+  __hv_fma_f(n, f, e, &e);
+  __hv_del1_f(&o->sDel1_BeqSK, n, &n);
+  __hv_mul_f(n, g, &g);
+  __hv_sub_f(e, g, &g);
+  __hv_fma_f(a, o->ym, g, &g);
+  o->ym = g;
+  *bOut = g;
+#elif HV_SIMD_SSE || HV_SIMD_NEON
+  hv_bufferf_t a, b, c, e, f;
+  __hv_del1_f(&o->sDel1_i8Twk, bIn1, &a);
+  __hv_mul_f(bIn1, a, &b);
+  __hv_del1_f(&o->sDel1_KYibU, a, &a);
+  __hv_mul_f(b, a, &c);
+  __hv_del1_f(&o->sDel1_spa5V, a, &a);
+  __hv_mul_f(c, a, &a);
+  __hv_del1_f(&o->sDel1_3HXdb, bIn0, &e);
+  __hv_del1_f(&o->sDel1_Aj1oK, e, &f);
+  __hv_mul_f(e, bIn1, &e);
+  __hv_sub_f(bIn0, e, &e);
+  __hv_fma_f(f, b, e, &e);
+  __hv_del1_f(&o->sDel1_jNX1g, f, &f);
+  __hv_mul_f(f, c, &c);
+  __hv_sub_f(e, c, &c);
+  __hv_fma_f(a, o->ym, c, &c);
+  o->ym = c;
+  *bOut = c;
+#else
+  *bOut = bIn0 - bIn1 * o->ym;
+  o->ym = *bOut;
+#endif
+}
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _SIGNAL_RPOLE_H_

distrho/source/HvSignalTabread.c

@@ -0,0 +1,77 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvSignalTabread.h"
+
+hv_size_t sTabread_init(SignalTabread *o, HvTable *table, bool forceAlignedLoads) {
+  o->table = table;
+  o->head = 0;
+  o->forceAlignedLoads = forceAlignedLoads;
+  return 0;
+}
+
+void sTabread_onMessage(HeavyContextInterface *_c, SignalTabread *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  switch (letIn) {
+    case 0: {
+      if (o->table != NULL) {
+        switch (msg_getType(m,0)) {
+          case HV_MSG_BANG: o->head = 0; break;
+          case HV_MSG_FLOAT: {
+            hv_uint32_t h = (hv_uint32_t) hv_abs_f(msg_getFloat(m,0));
+            if (msg_getFloat(m,0) < 0.0f) {
+              // if input is negative, wrap around the end of the table
+              h = hTable_getSize(o->table) - h;
+            }
+            o->head = o->forceAlignedLoads ? (h & ~HV_N_SIMD_MASK) : h;
+
+            // output new head
+            HvMessage *n = HV_MESSAGE_ON_STACK(1);
+            msg_initWithFloat(n, msg_getTimestamp(m), (float) o->head);
+            sendMessage(_c, 1, n);
+            break;
+          }
+          default: break;
+        }
+      }
+      break;
+    }
+    case 1: {
+      if (msg_isHashLike(m,0)) {
+        o->table = hv_table_get(_c, msg_getHash(m,0));
+      }
+      break;
+    }
+    default: break;
+  }
+}
+
+
+
+#if HV_APPLE
+#pragma mark - Tabhead
+#endif
+
+void sTabhead_onMessage(HeavyContextInterface *_c, SignalTabhead *o, const HvMessage *m) {
+  if (msg_isHashLike(m,0)) {
+    o->table = hv_table_get(_c, msg_getHash(m,0));
+  }
+}
+
+hv_size_t sTabhead_init(SignalTabhead *o, HvTable *table) {
+  o->table = table;
+  return 0;
+}

distrho/source/HvSignalTabread.h

@@ -0,0 +1,183 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_SIGNAL_TABREAD_H_
+#define _HEAVY_SIGNAL_TABREAD_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SignalTabread {
+  HvTable *table; // the table to read
+  hv_uint32_t head;
+  bool forceAlignedLoads; // false by default, true if using __hv_tabread_f
+} SignalTabread;
+
+// random access to a table
+hv_size_t sTabread_init(SignalTabread *o, HvTable *table, bool forceAlignedLoads);
+
+
+
+#if HV_APPLE
+#pragma mark - Tabread - Random Access
+#endif
+
+static inline void __hv_tabread_if(SignalTabread *o, hv_bIni_t bIn, hv_bOutf_t bOut) {
+  const float *const b = hTable_getBuffer(o->table);
+#if HV_SIMD_AVX
+  const hv_int32_t *const i = (hv_int32_t *) &bIn;
+
+  hv_assert(i[0] >= 0 && i[0] < hTable_getAllocated(o->table));
+  hv_assert(i[1] >= 0 && i[1] < hTable_getAllocated(o->table));
+  hv_assert(i[2] >= 0 && i[2] < hTable_getAllocated(o->table));
+  hv_assert(i[3] >= 0 && i[3] < hTable_getAllocated(o->table));
+  hv_assert(i[4] >= 0 && i[4] < hTable_getAllocated(o->table));
+  hv_assert(i[5] >= 0 && i[5] < hTable_getAllocated(o->table));
+  hv_assert(i[6] >= 0 && i[6] < hTable_getAllocated(o->table));
+  hv_assert(i[7] >= 0 && i[7] < hTable_getAllocated(o->table));
+
+  *bOut = _mm256_set_ps(b[i[7]], b[i[6]], b[i[5]], b[i[4]], b[i[3]], b[i[2]], b[i[1]], b[i[0]]);
+#elif HV_SIMD_SSE
+  const hv_int32_t *const i = (hv_int32_t *) &bIn;
+
+  hv_assert(i[0] >= 0 && ((hv_uint32_t) i[0]) < hTable_getAllocated(o->table));
+  hv_assert(i[1] >= 0 && ((hv_uint32_t) i[1]) < hTable_getAllocated(o->table));
+  hv_assert(i[2] >= 0 && ((hv_uint32_t) i[2]) < hTable_getAllocated(o->table));
+  hv_assert(i[3] >= 0 && ((hv_uint32_t) i[3]) < hTable_getAllocated(o->table));
+
+  *bOut = _mm_set_ps(b[i[3]], b[i[2]], b[i[1]], b[i[0]]);
+#elif HV_SIMD_NEON
+  hv_assert((bIn[0] >= 0) && (bIn[0] < hTable_getAllocated(o->table)));
+  hv_assert((bIn[1] >= 0) && (bIn[1] < hTable_getAllocated(o->table)));
+  hv_assert((bIn[2] >= 0) && (bIn[2] < hTable_getAllocated(o->table)));
+  hv_assert((bIn[3] >= 0) && (bIn[3] < hTable_getAllocated(o->table)));
+
+  *bOut = (float32x4_t) {b[bIn[0]], b[bIn[1]], b[bIn[2]], b[bIn[3]]};
+#else // HV_SIMD_NONE
+  hv_assert(bIn >= 0 && ((hv_uint32_t) bIn < hTable_getAllocated(o->table)));
+
+  *bOut = b[bIn];
+#endif
+}
+
+
+
+#if HV_APPLE
+#pragma mark - Tabread - Linear Access
+#endif
+
+// this tabread never stops reading. It is mainly intended for linear reads that loop around a table.
+static inline void __hv_tabread_f(SignalTabread *o, hv_bOutf_t bOut) {
+  hv_assert((o->head + HV_N_SIMD) <= hTable_getAllocated(o->table)); // assert that we always read within the table bounds
+  hv_uint32_t head = o->head;
+#if HV_SIMD_AVX
+  *bOut = _mm256_load_ps(hTable_getBuffer(o->table) + head);
+#elif HV_SIMD_SSE
+  *bOut = _mm_load_ps(hTable_getBuffer(o->table) + head);
+#elif HV_SIMD_NEON
+  *bOut = vld1q_f32(hTable_getBuffer(o->table) + head);
+#else // HV_SIMD_NONE
+  *bOut = *(hTable_getBuffer(o->table) + head);
+#endif
+  o->head = head + HV_N_SIMD;
+}
+
+// unaligned linear tabread, as above
+static inline void __hv_tabreadu_f(SignalTabread *o, hv_bOutf_t bOut) {
+  hv_assert((o->head + HV_N_SIMD) <= hTable_getAllocated(o->table)); // assert that we always read within the table bounds
+  hv_uint32_t head = o->head;
+#if HV_SIMD_AVX
+  *bOut = _mm256_loadu_ps(hTable_getBuffer(o->table) + head);
+#elif HV_SIMD_SSE
+  *bOut = _mm_loadu_ps(hTable_getBuffer(o->table) + head);
+#elif HV_SIMD_NEON
+  *bOut = vld1q_f32(hTable_getBuffer(o->table) + head);
+#else // HV_SIMD_NONE
+  *bOut = *(hTable_getBuffer(o->table) + head);
+#endif
+  o->head = head + HV_N_SIMD;
+}
+
+// this tabread can be instructed to stop. It is mainly intended for linear reads that only process a portion of a buffer.
+static inline void __hv_tabread_stoppable_f(SignalTabread *o, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  if (o->head == ~0x0) {
+    *bOut = _mm256_setzero_ps();
+  } else {
+    *bOut = _mm256_load_ps(hTable_getBuffer(o->table) + o->head);
+    o->head += HV_N_SIMD;
+  }
+#elif HV_SIMD_SSE
+  if (o->head == ~0x0) {
+    *bOut = _mm_setzero_ps();
+  } else {
+    *bOut = _mm_load_ps(hTable_getBuffer(o->table) + o->head);
+    o->head += HV_N_SIMD;
+  }
+#elif HV_SIMD_NEON
+  if (o->head == ~0x0) {
+    *bOut = vdupq_n_f32(0.0f);
+  } else {
+    *bOut = vld1q_f32(hTable_getBuffer(o->table) + o->head);
+    o->head += HV_N_SIMD;
+  }
+#else // HV_SIMD_NONE
+  if (o->head == ~0x0) {
+    *bOut = 0.0f;
+  } else {
+    *bOut = *(hTable_getBuffer(o->table) + o->head);
+    o->head += HV_N_SIMD;
+  }
+#endif
+}
+
+void sTabread_onMessage(HeavyContextInterface *_c, SignalTabread *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+
+
+#if HV_APPLE
+#pragma mark - Tabhead
+#endif
+
+typedef struct SignalTabhead {
+  HvTable *table;
+} SignalTabhead;
+
+hv_size_t sTabhead_init(SignalTabhead *o, HvTable *table);
+
+static inline void __hv_tabhead_f(SignalTabhead *o, hv_bOutf_t bOut) {
+#if HV_SIMD_AVX
+  *bOut = _mm256_set1_ps((float) hTable_getHead(o->table));
+#elif HV_SIMD_SSE
+  *bOut = _mm_set1_ps((float) hTable_getHead(o->table));
+#elif HV_SIMD_NEON
+  *bOut = vdupq_n_f32((float32_t) hTable_getHead(o->table));
+#else // HV_SIMD_NONE
+  *bOut = (float) hTable_getHead(o->table);
+#endif
+}
+
+void sTabhead_onMessage(HeavyContextInterface *_c, SignalTabhead *o, const HvMessage *m);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_SIGNAL_TABREAD_H_

distrho/source/HvSignalTabwrite.c

@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvSignalTabwrite.h"
+
+hv_size_t sTabwrite_init(SignalTabwrite *o, HvTable *table) {
+  o->table = table;
+  o->head = 0;
+  return 0;
+}
+
+void sTabwrite_onMessage(HeavyContextInterface *_c, SignalTabwrite *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  switch (letIn) {
+    // inlet 0 is the signal inlet
+    case 1: {
+      switch (msg_getType(m,0)) {
+        case HV_MSG_BANG: o->head = 0; break;
+        case HV_MSG_FLOAT: {
+          o->head = (msg_getFloat(m,0) >= 0.0f) ? (hv_uint32_t) msg_getFloat(m,0) : HV_TABWRITE_STOPPED;
+          break;
+        }
+        case HV_MSG_SYMBOL: {
+          if (msg_compareSymbol(m, 0, "stop")) {
+            o->head = HV_TABWRITE_STOPPED;
+          }
+          break;
+        }
+        default: break;
+      }
+      break;
+    }
+    case 2: {
+      if (msg_isHashLike(m,0)) {
+        o->table = hv_table_get(_c, msg_getHash(m,0));
+      }
+      break;
+    }
+    default: break;
+  }
+}

distrho/source/HvSignalTabwrite.h

@@ -0,0 +1,147 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_SIGNAL_TABWRITE_H_
+#define _HEAVY_SIGNAL_TABWRITE_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define HV_TABWRITE_STOPPED -1 // ~0x0
+
+typedef struct SignalTabwrite {
+  HvTable *table;
+  hv_uint32_t head; // local write head. Where this object has most recently written to the table.
+} SignalTabwrite;
+
+hv_size_t sTabwrite_init(SignalTabwrite *o, HvTable *table);
+
+void sTabwrite_onMessage(HeavyContextInterface *_c, SignalTabwrite *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+// linear write to table
+static inline void __hv_tabwrite_f(SignalTabwrite *o, hv_bInf_t bIn) {
+  hv_assert((o->head + HV_N_SIMD) <= hTable_getSize(o->table)); // assert that the table bounds are respected
+  hv_uint32_t head = o->head;
+#if HV_SIMD_AVX
+  _mm256_store_ps(hTable_getBuffer(o->table) + head, bIn);
+#elif HV_SIMD_SSE
+  _mm_store_ps(hTable_getBuffer(o->table) + head, bIn);
+#elif HV_SIMD_NEON
+  vst1q_f32(hTable_getBuffer(o->table) + head, bIn);
+#else // HV_SIMD_NONE
+  *(hTable_getBuffer(o->table) + head) = bIn;
+#endif
+  head += HV_N_SIMD;
+  o->head = head; // update local write head
+  hTable_setHead(o->table, head); // update the remote write head (e.g. for use by vd~)
+}
+
+// linear unaligned write to table
+static inline void __hv_tabwriteu_f(SignalTabwrite *o, hv_bInf_t bIn) {
+  hv_uint32_t head = o->head;
+#if HV_SIMD_AVX
+  _mm256_storeu_ps(hTable_getBuffer(o->table) + head, bIn);
+#elif HV_SIMD_SSE
+  _mm_storeu_ps(hTable_getBuffer(o->table) + head, bIn);
+#elif HV_SIMD_NEON
+  vst1q_f32(hTable_getBuffer(o->table) + head, bIn);
+#else // HV_SIMD_NONE
+  *(hTable_getBuffer(o->table) + head) = bIn;
+#endif
+  head += HV_N_SIMD;
+  o->head = head; // update local write head
+  hTable_setHead(o->table, head); // update remote write head
+}
+
+// this tabread can be instructed to stop. It is mainly intended for linear reads that only process a portion of a buffer.
+// Stores are unaligned, which can be slow but allows any indicies to be written to.
+// TODO(mhroth): this is not stopping!
+static inline void __hv_tabwrite_stoppable_f(SignalTabwrite *o, hv_bInf_t bIn) {
+  if (o->head != HV_TABWRITE_STOPPED) {
+#if HV_SIMD_AVX
+    _mm256_storeu_ps(hTable_getBuffer(o->table) + o->head, bIn);
+#elif HV_SIMD_SSE
+    _mm_storeu_ps(hTable_getBuffer(o->table) + o->head, bIn);
+#elif HV_SIMD_NEON
+    vst1q_f32(hTable_getBuffer(o->table) + o->head, bIn);
+#else // HV_SIMD_NONE
+    *(hTable_getBuffer(o->table) + o->head) = bIn;
+#endif
+    o->head += HV_N_SIMD;
+  }
+}
+
+// random write to table
+static inline void __hv_tabwrite_if(SignalTabwrite *o, hv_bIni_t bIn0, hv_bInf_t bIn1) {
+  float *const b = hTable_getBuffer(o->table);
+#if HV_SIMD_AVX
+  const hv_int32_t *const i = (hv_int32_t *) &bIn0;
+  const float *const f = (float *) &bIn1;
+
+  hv_assert(i[0] >= 0 && i[0] < hTable_getAllocated(o->table));
+  hv_assert(i[1] >= 0 && i[1] < hTable_getAllocated(o->table));
+  hv_assert(i[2] >= 0 && i[2] < hTable_getAllocated(o->table));
+  hv_assert(i[3] >= 0 && i[3] < hTable_getAllocated(o->table));
+  hv_assert(i[4] >= 0 && i[4] < hTable_getAllocated(o->table));
+  hv_assert(i[5] >= 0 && i[5] < hTable_getAllocated(o->table));
+  hv_assert(i[6] >= 0 && i[6] < hTable_getAllocated(o->table));
+  hv_assert(i[7] >= 0 && i[7] < hTable_getAllocated(o->table));
+
+  b[i[0]] = f[0];
+  b[i[1]] = f[1];
+  b[i[2]] = f[2];
+  b[i[3]] = f[3];
+  b[i[4]] = f[4];
+  b[i[5]] = f[5];
+  b[i[6]] = f[6];
+  b[i[7]] = f[7];
+#elif HV_SIMD_SSE
+  const hv_int32_t *const i = (hv_int32_t *) &bIn0;
+  const float *const f = (float *) &bIn1;
+
+  hv_assert(i[0] >= 0 && ((hv_uint32_t) i[0]) < hTable_getAllocated(o->table));
+  hv_assert(i[1] >= 0 && ((hv_uint32_t) i[1]) < hTable_getAllocated(o->table));
+  hv_assert(i[2] >= 0 && ((hv_uint32_t) i[2]) < hTable_getAllocated(o->table));
+  hv_assert(i[3] >= 0 && ((hv_uint32_t) i[3]) < hTable_getAllocated(o->table));
+
+  b[i[0]] = f[0];
+  b[i[1]] = f[1];
+  b[i[2]] = f[2];
+  b[i[3]] = f[3];
+#elif HV_SIMD_NEON
+  hv_assert((vgetq_lane_s32(bIn0,0) >= 0) && (vgetq_lane_s32(bIn0,0) < hTable_getSize(o->table)));
+  hv_assert((vgetq_lane_s32(bIn0,1) >= 0) && (vgetq_lane_s32(bIn0,1) < hTable_getSize(o->table)));
+  hv_assert((vgetq_lane_s32(bIn0,2) >= 0) && (vgetq_lane_s32(bIn0,2) < hTable_getSize(o->table)));
+  hv_assert((vgetq_lane_s32(bIn0,3) >= 0) && (vgetq_lane_s32(bIn0,3) < hTable_getSize(o->table)));
+
+  vst1q_lane_f32(b + vgetq_lane_s32(bIn0, 0), bIn1, 0);
+  vst1q_lane_f32(b + vgetq_lane_s32(bIn0, 1), bIn1, 1);
+  vst1q_lane_f32(b + vgetq_lane_s32(bIn0, 2), bIn1, 2);
+  vst1q_lane_f32(b + vgetq_lane_s32(bIn0, 3), bIn1, 3);
+#else // HV_SIMD_NONE
+  b[bIn0] = bIn1;
+#endif
+}
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_SIGNAL_TABWRITE_H_

distrho/source/HvSignalVar.c

@@ -0,0 +1,75 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvSignalVar.h"
+
+// __var~f
+
+static void sVarf_update(SignalVarf *o, float k, float step, bool reverse) {
+#if HV_SIMD_AVX
+  if (reverse) o->v = _mm256_setr_ps(k+7.0f*step, k+6.0f*step, k+5.0f*step, k+4.0f*step, k+3.0f*step, k+2.0f*step, k+step, k);
+  else o->v = _mm256_set_ps(k+7.0f*step, k+6.0f*step, k+5.0f*step, k+4.0f*step, k+3.0f*step, k+2.0f*step, k+step, k);
+#elif HV_SIMD_SSE
+  if (reverse) o->v = _mm_setr_ps(k+3.0f*step, k+2.0f*step, k+step, k);
+  else o->v = _mm_set_ps(k+3.0f*step, k+2.0f*step, k+step, k);
+#elif HV_SIMD_NEON
+  if (reverse) o->v = (float32x4_t) {3.0f*step+k, 2.0f*step+k, step+k, k};
+  else o->v = (float32x4_t) {k, step+k, 2.0f*step+k, 3.0f*step+k};
+#else // HV_SIMD_NONE
+  o->v = k;
+#endif
+}
+
+hv_size_t sVarf_init(SignalVarf *o, float k, float step, bool reverse) {
+  sVarf_update(o, k, step, reverse);
+  return 0;
+}
+
+void sVarf_onMessage(HeavyContextInterface *_c, SignalVarf *o, const HvMessage *m) {
+  if (msg_isFloat(m,0)) {
+    sVarf_update(o, msg_getFloat(m,0), msg_isFloat(m,1) ? msg_getFloat(m,1) : 0.0f, msg_getNumElements(m) == 3);
+  }
+}
+
+
+
+// __var~i
+
+static void sVari_update(SignalVari *o, int k, int step, bool reverse) {
+#if HV_SIMD_AVX
+  if (reverse) o->v = _mm256_setr_epi32(k+7*step, k+6*step, k+5*step, k+4*step, k+3*step, k+2*step, k+step, k);
+  else o->v = _mm256_set_epi32(k+7*step, k+6*step, k+5*step, k+4*step, k+3*step, k+2*step, k+step, k);
+#elif HV_SIMD_SSE
+  if (reverse) o->v = _mm_setr_epi32(k+3*step, k+2*step, k+step, k);
+  else o->v = _mm_set_epi32(k+3*step, k+2*step, k+step, k);
+#elif HV_SIMD_NEON
+  if (reverse) o->v = (int32x4_t) {3*step+k, 2*step+k, step+k, k};
+  else o->v = (int32x4_t) {k, step+k, 2*step+k, 3*step+k};
+#else // HV_SIMD_NEON
+  o->v = k;
+#endif
+}
+
+hv_size_t sVari_init(SignalVari *o, int k, int step, bool reverse) {
+  sVari_update(o, k, step, reverse);
+  return 0;
+}
+
+void sVari_onMessage(HeavyContextInterface *_c, SignalVari *o, const HvMessage *m) {
+  if (msg_isFloat(m,0)) {
+    sVari_update(o, (int) msg_getFloat(m,0), msg_isFloat(m,1) ? (int) msg_getFloat(m,1) : 0, msg_getNumElements(m) == 3);
+  }
+}

distrho/source/HvSignalVar.h

@@ -0,0 +1,94 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_SIGNAL_VAR_H_
+#define _HEAVY_SIGNAL_VAR_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// __var~f, __varread~f, __varwrite~f
+
+typedef struct SignalVarf {
+  hv_bufferf_t v;
+} SignalVarf;
+
+hv_size_t sVarf_init(SignalVarf *o, float k, float step, bool reverse);
+
+static inline void __hv_varread_f(SignalVarf *o, hv_bOutf_t bOut) {
+  *bOut = o->v;
+}
+
+static inline void __hv_varwrite_f(SignalVarf *o, hv_bInf_t bIn) {
+  o->v = bIn;
+}
+
+void sVarf_onMessage(HeavyContextInterface *_c, SignalVarf *o, const HvMessage *m);
+
+
+
+// __var~i, __varread~i, __varwrite~i
+
+typedef struct SignalVari {
+  hv_bufferi_t v;
+} SignalVari;
+
+hv_size_t sVari_init(SignalVari *o, int k, int step, bool reverse);
+
+static inline void __hv_varread_i(SignalVari *o, hv_bOuti_t bOut) {
+  *bOut = o->v;
+}
+
+static inline void __hv_varwrite_i(SignalVari *o, hv_bIni_t bIn) {
+  o->v = bIn;
+}
+
+void sVari_onMessage(HeavyContextInterface *_c, SignalVari *o, const HvMessage *m);
+
+
+
+// __var_k~f, __var_k~i
+
+#if HV_SIMD_AVX
+#define __hv_var_k_i(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_mm256_set_epi32(_h,_g,_f,_e,_d,_c,_b,_a)
+#define __hv_var_k_i_r(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_mm256_set_epi32(_a,_b,_c,_d,_e,_f,_g,_h)
+#define __hv_var_k_f(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_mm256_set_ps(_h,_g,_f,_e,_d,_c,_b,_a)
+#define __hv_var_k_f_r(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_mm256_set_ps(_a,_b,_c,_d,_e,_f,_g,_h)
+#elif HV_SIMD_SSE
+#define __hv_var_k_i(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_mm_set_epi32(_d,_c,_b,_a)
+#define __hv_var_k_i_r(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_mm_set_epi32(_a,_b,_c,_d)
+#define __hv_var_k_f(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_mm_set_ps(_d,_c,_b,_a)
+#define __hv_var_k_f_r(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_mm_set_ps(_a,_b,_c,_d)
+#elif HV_SIMD_NEON
+#define __hv_var_k_i(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=((int32x4_t) {_a,_b,_c,_d})
+#define __hv_var_k_i_r(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=((int32x4_t) {_d,_c,_b,_a})
+#define __hv_var_k_f(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=((float32x4_t) {_a,_b,_c,_d})
+#define __hv_var_k_f_r(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=((float32x4_t) {_d,_c,_b,_a})
+#else // HV_SIMD_NONE
+#define __hv_var_k_i(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_a
+#define __hv_var_k_i_r(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_a
+#define __hv_var_k_f(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_a
+#define __hv_var_k_f_r(_z,_a,_b,_c,_d,_e,_f,_g,_h) *_z=_a
+#endif
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_SIGNAL_VAR_H_

distrho/source/HvTable.c

@@ -0,0 +1,110 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvTable.h"
+#include "HvMessage.h"
+
+hv_size_t hTable_init(HvTable *o, int length) {
+  o->length = length;
+  // true size of the table is always an integer multple of HV_N_SIMD
+  o->size = (length + HV_N_SIMD_MASK) & ~HV_N_SIMD_MASK;
+  // add an extra length for mirroring
+  o->allocated = o->size + HV_N_SIMD;
+  o->head = 0;
+  hv_size_t numBytes = o->allocated * sizeof(float);
+  o->buffer = (float *) hv_malloc(numBytes);
+  hv_assert(o->buffer != NULL);
+  hv_memclear(o->buffer, numBytes);
+  return numBytes;
+}
+
+hv_size_t hTable_initWithData(HvTable *o, int length, const float *data) {
+  o->length = length;
+  o->size = (length + HV_N_SIMD_MASK) & ~HV_N_SIMD_MASK;
+  o->allocated = o->size + HV_N_SIMD;
+  o->head = 0;
+  hv_size_t numBytes = o->size * sizeof(float);
+  o->buffer = (float *) hv_malloc(numBytes);
+  hv_assert(o->buffer != NULL);
+  hv_memclear(o->buffer, numBytes);
+  hv_memcpy(o->buffer, data, length*sizeof(float));
+  return numBytes;
+}
+
+hv_size_t hTable_initWithFinalData(HvTable *o, int length, float *data) {
+  o->length = length;
+  o->size = length;
+  o->allocated = length;
+  o->buffer = data;
+  o->head = 0;
+  return 0;
+}
+
+void hTable_free(HvTable *o) {
+  hv_free(o->buffer);
+}
+
+int hTable_resize(HvTable *o, hv_uint32_t newLength) {
+  // TODO(mhroth): update context with memory allocated by table
+  // NOTE(mhroth): mirrored bytes are not necessarily carried over
+  const hv_uint32_t newSize = (newLength + HV_N_SIMD_MASK) & ~HV_N_SIMD_MASK;
+  if (newSize == o->size) return 0; // early exit if no change in size
+  const hv_uint32_t oldSizeBytes = (hv_uint32_t) (o->size * sizeof(float));
+  const hv_uint32_t newAllocated = newSize + HV_N_SIMD;
+  const hv_uint32_t newAllocatedBytes = (hv_uint32_t) (newAllocated * sizeof(float));
+
+  float *b = (float *) hv_realloc(o->buffer, newAllocatedBytes);
+  hv_assert(b != NULL); // error while reallocing!
+  // ensure that hv_realloc has given us a correctly aligned buffer
+  if ((((hv_uintptr_t) (const void *) b) & ((0x1<<HV_N_SIMD)-1)) == 0) {
+    if (newSize > o->size) {
+      hv_memclear(b + o->size, (newAllocated - o->size) * sizeof(float)); // clear new parts of the buffer
+    }
+    o->buffer = b;
+  } else {
+    // if not, we have to re-malloc ourselves
+    char *c = (char *) hv_malloc(newAllocatedBytes);
+    hv_assert(c != NULL); // error while allocating new buffer!
+    if (newAllocatedBytes > oldSizeBytes) {
+      hv_memcpy(c, b, oldSizeBytes);
+      hv_memclear(c + oldSizeBytes, newAllocatedBytes - oldSizeBytes);
+    } else {
+      hv_memcpy(c, b, newAllocatedBytes);
+    }
+    hv_free(b);
+    o->buffer = (float *) c;
+  }
+  o->length = newLength;
+  o->size = newSize;
+  o->allocated = newAllocated;
+  return (int) (newAllocated - oldSizeBytes - (HV_N_SIMD*sizeof(float)));
+}
+
+void hTable_onMessage(HeavyContextInterface *_c, HvTable *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
+  if (msg_compareSymbol(m,0,"resize") && msg_isFloat(m,1) && msg_getFloat(m,1) >= 0.0f) {
+    hTable_resize(o, (int) hv_ceil_f(msg_getFloat(m,1))); // apply ceil to ensure that tables always have enough space
+
+    // send out the new size of the table
+    HvMessage *n = HV_MESSAGE_ON_STACK(1);
+    msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getSize(o));
+    sendMessage(_c, 0, n);
+  }
+
+  else if (msg_compareSymbol(m,0,"mirror")) {
+    hv_memcpy(o->buffer+o->size, o->buffer, HV_N_SIMD*sizeof(float));
+  }
+}

distrho/source/HvTable.h

@@ -0,0 +1,88 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_TABLE_H_
+#define _HEAVY_TABLE_H_
+
+#include "HvHeavy.h"
+#include "HvUtils.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct HvTable {
+  float *buffer;
+  // the number of values that the table is requested to have
+  hv_uint32_t length;
+
+  // the number of usable values that the table actually has
+  // this is always an even multiple of HV_N_SIMD
+  hv_uint32_t size;
+
+  // Note that the true size of the table is (size + HV_N_SIMD),
+  // with the trailing values used by the system, e.g. to create a circular
+  // buffer
+  hv_uint32_t allocated;
+
+  hv_uint32_t head; // the most recently written point
+} HvTable;
+
+hv_size_t hTable_init(HvTable *o, int length);
+
+hv_size_t hTable_initWithData(HvTable *o, int length, const float *data);
+
+hv_size_t hTable_initWithFinalData(HvTable *o, int length, float *data);
+
+void hTable_free(HvTable *o);
+
+int hTable_resize(HvTable *o, hv_uint32_t newLength);
+
+void hTable_onMessage(HeavyContextInterface *_c, HvTable *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+static inline float *hTable_getBuffer(HvTable *o) {
+  return o->buffer;
+}
+
+// the user-requested length of the table (number of floats)
+static inline hv_uint32_t hTable_getLength(HvTable *o) {
+  return o->length;
+}
+
+// the usable length of the table (an even multiple of HV_N_SIMD)
+static inline hv_uint32_t hTable_getSize(HvTable *o) {
+  return o->size;
+}
+
+// the number of floats allocated to this table (usually size + HV_N_SIMD)
+static inline hv_uint32_t hTable_getAllocated(HvTable *o) {
+  return o->allocated;
+}
+
+static inline hv_uint32_t hTable_getHead(HvTable *o) {
+  return o->head;
+}
+
+static inline void hTable_setHead(HvTable *o, hv_uint32_t head) {
+  o->head = head;
+}
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_TABLE_H_

distrho/source/HvUtils.c

@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "HvUtils.h"
+
+hv_uint32_t hv_string_to_hash(const char *str) {
+  // this hash is based MurmurHash2
+  // http://en.wikipedia.org/wiki/MurmurHash
+  // https://sites.google.com/site/murmurhash/
+  static const hv_uint32_t n = 0x5bd1e995;
+  static const hv_int32_t r = 24;
+
+  if (str == NULL) return 0;
+
+  hv_uint32_t len = (hv_uint32_t) hv_strlen(str);
+  hv_uint32_t x = len; // seed (0) ^ len
+
+  while (len >= 4) {
+#if HV_EMSCRIPTEN
+    hv_uint32_t k = str[0] | (str[1] << 8) | (str[2] << 16) | (str[3] << 24);
+#else
+    hv_uint32_t k = *((hv_uint32_t *) str);
+#endif
+    k *= n;
+    k ^= (k >> r);
+    k *= n;
+    x *= n;
+    x ^= k;
+    str += 4; len -= 4;
+  }
+  switch (len) {
+    case 3: x ^= (str[2] << 16);
+    case 2: x ^= (str[1] << 8);
+    case 1: x ^= str[0]; x *= n;
+    default: break;
+  }
+  x ^= (x >> 13);
+  x *= n;
+  x ^= (x >> 15);
+  return x;
+}

distrho/source/HvUtils.h

@@ -0,0 +1,320 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_UTILS_H_
+#define _HEAVY_UTILS_H_
+
+// platform definitions
+#if _WIN32 || _WIN64
+  #define HV_WIN 1
+#ifdef _MSC_VER
+  #define HV_MSVC 1
+#endif
+#elif __APPLE__
+  #define HV_APPLE 1
+#elif __ANDROID__
+  #define HV_ANDROID 1
+#elif __unix__ || __unix
+  #define HV_UNIX 1
+#else
+  #warning Could not detect platform. Assuming Unix-like.
+#endif
+
+#ifdef EMSCRIPTEN
+#define HV_EMSCRIPTEN 1
+#endif
+
+// basic includes
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// type definitions
+#include <stdint.h>
+#include <stdbool.h>
+#define hv_uint8_t uint8_t
+#define hv_int16_t int16_t
+#define hv_uint16_t uint16_t
+#define hv_int32_t int32_t
+#define hv_uint32_t uint32_t
+#define hv_uint64_t uint64_t
+#define hv_size_t size_t
+#define hv_uintptr_t uintptr_t
+
+// SIMD-specific includes
+#if !(HV_SIMD_NONE || HV_SIMD_NEON || HV_SIMD_SSE || HV_SIMD_AVX)
+  #define HV_SIMD_NEON __ARM_NEON__
+  #define HV_SIMD_SSE (__SSE__ && __SSE2__ && __SSE3__ && __SSSE3__ && __SSE4_1__)
+  #define HV_SIMD_AVX (__AVX__ && HV_SIMD_SSE)
+#endif
+#ifndef HV_SIMD_FMA
+  #define HV_SIMD_FMA __FMA__
+#endif
+
+#if HV_SIMD_AVX || HV_SIMD_SSE
+  #include <immintrin.h>
+#elif HV_SIMD_NEON
+  #include <arm_neon.h>
+#endif
+
+#if HV_SIMD_NEON // NEON
+  #define HV_N_SIMD 4
+  #define hv_bufferf_t float32x4_t
+  #define hv_bufferi_t int32x4_t
+  #define hv_bInf_t float32x4_t
+  #define hv_bOutf_t float32x4_t*
+  #define hv_bIni_t int32x4_t
+  #define hv_bOuti_t int32x4_t*
+  #define VIf(_x) (_x)
+  #define VOf(_x) (&_x)
+  #define VIi(_x) (_x)
+  #define VOi(_x) (&_x)
+#elif HV_SIMD_AVX // AVX
+  #define HV_N_SIMD 8
+  #define hv_bufferf_t __m256
+  #define hv_bufferi_t __m256i
+  #define hv_bInf_t __m256
+  #define hv_bOutf_t __m256*
+  #define hv_bIni_t __m256i
+  #define hv_bOuti_t __m256i*
+  #define VIf(_x) (_x)
+  #define VOf(_x) (&_x)
+  #define VIi(_x) (_x)
+  #define VOi(_x) (&_x)
+#elif HV_SIMD_SSE // SSE
+  #define HV_N_SIMD 4
+  #define hv_bufferf_t __m128
+  #define hv_bufferi_t __m128i
+  #define hv_bInf_t __m128
+  #define hv_bOutf_t __m128*
+  #define hv_bIni_t __m128i
+  #define hv_bOuti_t __m128i*
+  #define VIf(_x) (_x)
+  #define VOf(_x) (&_x)
+  #define VIi(_x) (_x)
+  #define VOi(_x) (&_x)
+#else // DEFAULT
+  #define HV_N_SIMD 1
+  #undef HV_SIMD_NONE
+  #define HV_SIMD_NONE 1
+  #define hv_bufferf_t float
+  #define hv_bufferi_t int
+  #define hv_bInf_t float
+  #define hv_bOutf_t float*
+  #define hv_bIni_t int
+  #define hv_bOuti_t int*
+  #define VIf(_x) (_x)
+  #define VOf(_x) (&_x)
+  #define VIi(_x) (_x)
+  #define VOi(_x) (&_x)
+#endif
+
+#define HV_N_SIMD_MASK (HV_N_SIMD-1)
+
+// Strings
+#include <string.h>
+#define hv_strlen(a) strlen(a)
+#define hv_strcmp(a, b) strcmp(a, b)
+#define hv_snprintf(a, b, c, ...) snprintf(a, b, c, __VA_ARGS__)
+#if HV_WIN
+#define hv_strncpy(_dst, _src, _len) strncpy_s(_dst, _len, _src, _TRUNCATE)
+#else
+#define hv_strncpy(_dst, _src, _len) strncpy(_dst, _src, _len)
+#endif
+
+// Memory management
+#define hv_memcpy(a, b, c) memcpy(a, b, c)
+#define hv_memclear(a, b) memset(a, 0, b)
+#if HV_MSVC
+  #include <malloc.h>
+  #define hv_alloca(_n) _alloca(_n)
+  #if HV_SIMD_AVX
+    #define hv_malloc(_n) _aligned_malloc(_n, 32)
+    #define hv_realloc(a, b) _aligned_realloc(a, b, 32)
+    #define hv_free(x) _aligned_free(x)
+  #elif HV_SIMD_SSE || HV_SIMD_NEON
+    #define hv_malloc(_n) _aligned_malloc(_n, 16)
+    #define hv_realloc(a, b) _aligned_realloc(a, b, 16)
+    #define hv_free(x) _aligned_free(x)
+  #else // HV_SIMD_NONE
+    #define hv_malloc(_n) malloc(_n)
+    #define hv_realloc(a, b) realloc(a, b)
+    #define hv_free(_n) free(_n)
+  #endif
+#elif HV_APPLE
+  #define hv_alloca(_n) alloca(_n)
+  #define hv_realloc(a, b) realloc(a, b)
+  #if HV_SIMD_AVX
+    #include <mm_malloc.h>
+    #define hv_malloc(_n) _mm_malloc(_n, 32)
+    #define hv_free(x) _mm_free(x)
+  #elif HV_SIMD_SSE
+    #include <mm_malloc.h>
+    #define hv_malloc(_n) _mm_malloc(_n, 16)
+    #define hv_free(x) _mm_free(x)
+  #elif HV_SIMD_NEON
+    // malloc on ios always has 16-byte alignment
+    #define hv_malloc(_n) malloc(_n)
+    #define hv_free(x) free(x)
+  #else // HV_SIMD_NONE
+    #define hv_malloc(_n) malloc(_n)
+    #define hv_free(x) free(x)
+  #endif
+#else
+  #include <alloca.h>
+  #define hv_alloca(_n) alloca(_n)
+  #define hv_realloc(a, b) realloc(a, b)
+  #if HV_SIMD_AVX
+    #define hv_malloc(_n) aligned_alloc(32, _n)
+    #define hv_free(x) free(x)
+  #elif HV_SIMD_SSE
+    #define hv_malloc(_n) aligned_alloc(16, _n)
+    #define hv_free(x) free(x)
+  #elif HV_SIMD_NEON
+    #if HV_ANDROID
+      #define hv_malloc(_n) memalign(16, _n)
+      #define hv_free(x) free(x)
+    #else
+      #define hv_malloc(_n) aligned_alloc(16, _n)
+      #define hv_free(x) free(x)
+    #endif
+  #else // HV_SIMD_NONE
+    #define hv_malloc(_n) malloc(_n)
+    #define hv_free(_n) free(_n)
+  #endif
+#endif
+
+// Assert
+#include <assert.h>
+#define hv_assert(e) assert(e)
+
+// Export and Inline
+#if HV_MSVC
+#define HV_EXPORT __declspec(dllexport)
+#define inline __inline
+#define HV_FORCE_INLINE __forceinline
+#else
+#define HV_EXPORT
+#define HV_FORCE_INLINE inline __attribute__((always_inline))
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  // Returns a 32-bit hash of any string. Returns 0 if string is NULL.
+  hv_uint32_t hv_string_to_hash(const char *str);
+#ifdef __cplusplus
+}
+#endif
+
+// Math
+#include <math.h>
+static inline hv_size_t __hv_utils_max_ui(hv_size_t x, hv_size_t y) { return (x > y) ? x : y; }
+static inline hv_size_t __hv_utils_min_ui(hv_size_t x, hv_size_t y) { return (x < y) ? x : y; }
+static inline hv_int32_t __hv_utils_max_i(hv_int32_t x, hv_int32_t y) { return (x > y) ? x : y; }
+static inline hv_int32_t __hv_utils_min_i(hv_int32_t x, hv_int32_t y) { return (x < y) ? x : y; }
+#define hv_max_ui(a, b) __hv_utils_max_ui(a, b)
+#define hv_min_ui(a, b) __hv_utils_min_ui(a, b)
+#define hv_max_i(a, b) __hv_utils_max_i(a, b)
+#define hv_min_i(a, b) __hv_utils_min_i(a, b)
+#define hv_max_f(a, b) fmaxf(a, b)
+#define hv_min_f(a, b) fminf(a, b)
+#define hv_max_d(a, b) fmax(a, b)
+#define hv_min_d(a, b) fmin(a, b)
+#define hv_sin_f(a) sinf(a)
+#define hv_sinh_f(a) sinhf(a)
+#define hv_cos_f(a) cosf(a)
+#define hv_cosh_f(a) coshf(a)
+#define hv_tan_f(a) tanf(a)
+#define hv_tanh_f(a) tanhf(a)
+#define hv_asin_f(a) asinf(a)
+#define hv_asinh_f(a) asinhf(a)
+#define hv_acos_f(a) acosf(a)
+#define hv_acosh_f(a) acoshf(a)
+#define hv_atan_f(a) atanf(a)
+#define hv_atanh_f(a) atanhf(a)
+#define hv_atan2_f(a, b) atan2f(a, b)
+#define hv_exp_f(a) expf(a)
+#define hv_abs_f(a) fabsf(a)
+#define hv_sqrt_f(a) sqrtf(a)
+#define hv_log_f(a) logf(a)
+#define hv_ceil_f(a) ceilf(a)
+#define hv_floor_f(a) floorf(a)
+#define hv_round_f(a) roundf(a)
+#define hv_pow_f(a, b) powf(a, b)
+#if HV_EMSCRIPTEN
+#define hv_fma_f(a, b, c) ((a*b)+c) // emscripten does not support fmaf (yet?)
+#else
+#define hv_fma_f(a, b, c) fmaf(a, b, c)
+#endif
+#if HV_MSVC
+  // finds ceil(log2(x))
+  #include <intrin.h>
+  static inline hv_uint32_t __hv_utils_min_max_log2(hv_uint32_t x) {
+    unsigned long z = 0;
+    _BitScanReverse(&z, x);
+    return (hv_uint32_t) (z+1);
+  }
+#else
+  static inline hv_uint32_t __hv_utils_min_max_log2(hv_uint32_t x) {
+    return (hv_uint32_t) (32 - __builtin_clz(x-1));
+  }
+#endif
+#define hv_min_max_log2(a) __hv_utils_min_max_log2(a)
+
+// Atomics
+#if HV_WIN
+  #include <Windows.h>
+  #define hv_atomic_bool volatile LONG
+  #define HV_SPINLOCK_ACQUIRE(_x) while (InterlockedCompareExchange(&_x, true, false)) { }
+  #define HV_SPINLOCK_TRY(_x) return !InterlockedCompareExchange(&_x, true, false)
+  #define HV_SPINLOCK_RELEASE(_x) (_x = false)
+#elif HV_ANDROID
+  // Android support for atomics isn't that great, we'll do it manually
+  // https://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Atomic-Builtins.html
+  #define hv_atomic_bool hv_uint8_t
+  #define HV_SPINLOCK_ACQUIRE(_x) while (__sync_lock_test_and_set(&_x, 1))
+  #define HV_SPINLOCK_TRY(_x) return !__sync_lock_test_and_set(&_x, 1)
+  #define HV_SPINLOCK_RELEASE(_x) __sync_lock_release(&_x)
+#elif __cplusplus
+  #include <atomic>
+  #define hv_atomic_bool std::atomic_flag
+  #define HV_SPINLOCK_ACQUIRE(_x) while (_x.test_and_set(std::memory_order_acquire))
+  #define HV_SPINLOCK_TRY(_x) return !_x.test_and_set(std::memory_order_acquire)
+  #define HV_SPINLOCK_RELEASE(_x) _x.clear(std::memory_order_release)
+#elif defined(__has_include)
+  #if __has_include(<stdatomic.h>)
+    #include <stdatomic.h>
+    #define hv_atomic_bool atomic_flag
+    #define HV_SPINLOCK_ACQUIRE(_x) while (atomic_flag_test_and_set_explicit(&_x, memory_order_acquire))
+    #define HV_SPINLOCK_TRY(_x) return !atomic_flag_test_and_set_explicit(&_x, memory_order_acquire)
+    #define HV_SPINLOCK_RELEASE(_x) atomic_flag_clear_explicit(memory_order_release)
+  #endif
+#endif
+#ifndef hv_atomic_bool
+  #define hv_atomic_bool volatile bool
+  #define HV_SPINLOCK_ACQUIRE(_x) \
+  while (_x) {} \
+  _x = true;
+  #define HV_SPINLOCK_TRY(_x) \
+  if (!_x) { \
+    _x = true; \
+    return true; \
+  } else return false;
+  #define HV_SPINLOCK_RELEASE(_x) (_x = false)
+#endif
+
+#endif // _HEAVY_UTILS_H_

distrho/source/Makefile

@@ -0,0 +1,36 @@
+NAME = arp_delay_env
+FILES_DSP = HeavyDPF_arp_delay_env.cpp
+
+include ../../dpf/Makefile.plugins.mk
+
+LINK_FLAGS += -lpthread
+
+# # heavy objects
+# HEADERS=$(wildcard *.h)
+# HEADERS+=$(wildcard *.hpp)
+
+# CFILES=$(wildcard *.c)
+# OBJC=$(CFILES:%.c=%.o)
+
+# CXXFILES=$(wildcard *.cpp)
+# CXXFILES:=$(filter-out HeavyDPF_arp_delay_env.cpp, $(CXXFILES))
+# OBJCXX=$(CXXFILES:%.cpp=%.o)
+
+# %.o: %.c $(HEADERS)
+# 	$(CC) -c -o $@ $< $(CFLAGS)
+
+# %.o: %.cpp $(HEADERS)
+# 	$(CXX) -c -o $@ $< $(CXXFLAGS)
+
+# objects: $(OBJC) $(OBJCXX)
+# 	$(CXX) -o $(BUILD_DIR)/arp_delay_env.so $^
+# 	# $(CXX) -o $(BUILD_DIR)/arp_delay_env.so $^ -shared
+# # heavy objects
+
+
+TARGETS += jack
+TARGETS += lv2_dsp
+TARGETS += vst
+
+# all: objects $(TARGETS)
+all: $(TARGETS)

dpf

@@ -0,0 +1 @@
+Subproject commit 89cbdbba5320c8f8822885b510307bef0c7a428f