From f087f9fe788991f77caa237ba8d41216bddc6fb8 Mon Sep 17 00:00:00 2001
From: Damien Zammit <damien@zamaudio.com>
Date: Sat, 27 Apr 2024 15:06:34 +1000
Subject: [PATCH] ZamNoise: Try again

---
 plugins/ZamNoise/Denoise.cpp        |  1 -
 plugins/ZamNoise/ZamNoisePlugin.cpp | 10 ++++++++--
 plugins/ZamNoise/ZamNoisePlugin.hpp |  1 +
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/plugins/ZamNoise/Denoise.cpp b/plugins/ZamNoise/Denoise.cpp
index fac666f..494882d 100644
--- a/plugins/ZamNoise/Denoise.cpp
+++ b/plugins/ZamNoise/Denoise.cpp
@@ -211,7 +211,6 @@ Denoise::~Denoise() {
     FFTW(destroy_plan)(pForNoise);
     FFTW(destroy_plan)(pBak);
     FFTW(destroy_plan)(pFor);
-    FFTW(cleanup)();
 }
 
 void Denoise::get_noise_sample(float* noisebuffer, fftw_real *noise_min, fftw_real *noise_max)
diff --git a/plugins/ZamNoise/ZamNoisePlugin.cpp b/plugins/ZamNoise/ZamNoisePlugin.cpp
index b26fec7..4c8230e 100644
--- a/plugins/ZamNoise/ZamNoisePlugin.cpp
+++ b/plugins/ZamNoise/ZamNoisePlugin.cpp
@@ -25,6 +25,7 @@ ZamNoisePlugin::ZamNoisePlugin()
     : Plugin(paramCount, 1, 0) // 1 program, 0 states
 {
     buffer.cbsize = 0;
+    buffer.cbsizeold = 0;
     zamnoise = new Denoise(getSampleRate());
     ZamNoisePlugin::init();
 
@@ -40,6 +41,7 @@ ZamNoisePlugin::~ZamNoisePlugin()
 	buffer.cbsize = 0;
 	delete zamnoise;
 	free(buffer.cbi);
+	FFTW(cleanup)();
 }
 
 // -----------------------------------------------------------------------
@@ -129,8 +131,9 @@ void ZamNoisePlugin::loadProgram(uint32_t index)
 
 
 void ZamNoisePlugin::InstantiateCircularBuffer(CircularBuffer* buf) {
-	buf->cbi = (float*) calloc(DENOISE_MAX_FFT, sizeof(float));
-	buf->cbsize = DENOISE_MAX_FFT;
+	buf->cbsizeold = DENOISE_MAX_FFT;
+	buf->cbi = (float*) calloc(buf->cbsizeold, sizeof(float));
+	buf->cbsize = buf->cbsizeold;
 }
 
 void ZamNoisePlugin::init (void)
@@ -144,10 +147,13 @@ void ZamNoisePlugin::init (void)
 
 void ZamNoisePlugin::activate()
 {
+	if (buffer.cbsizeold > 0)
+		buffer.cbsize = buffer.cbsizeold;
 }
 
 void ZamNoisePlugin::deactivate()
 {
+	buffer.cbsize = 0;
 }
 
 void ZamNoisePlugin::run(const float** inputs, float** outputs, uint32_t frames)
diff --git a/plugins/ZamNoise/ZamNoisePlugin.hpp b/plugins/ZamNoise/ZamNoisePlugin.hpp
index 5954e43..8a7b72d 100644
--- a/plugins/ZamNoise/ZamNoisePlugin.hpp
+++ b/plugins/ZamNoise/ZamNoisePlugin.hpp
@@ -23,6 +23,7 @@
 
 typedef struct {
 	unsigned long cbsize; // size of circular buffer
+	unsigned long cbsizeold; // old size of circular buffer
 	float* cbi;
 } CircularBuffer;