From b453f192d22b1c951d71e8a73f28a37cd96a7b6c Mon Sep 17 00:00:00 2001
From: Andrew Belt <andrewpbelt@gmail.com>
Date: Mon, 22 Jul 2024 03:23:28 -0400
Subject: [PATCH] Require >=32 wavetable points to fix crash when computing
 interpolated wavetables.

---
 src/Wavetable.hpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Wavetable.hpp b/src/Wavetable.hpp
index 6144c5d..982f737 100644
--- a/src/Wavetable.hpp
+++ b/src/Wavetable.hpp
@@ -100,7 +100,11 @@ struct Wavetable {
 	void interpolate() {
 		if (quality == 0)
 			return;
-		if (waveLen < 2)
+		// pffft only supports >=32 points
+		if (waveLen < 32)
+			return;
+		// pffft only supports multiples of 32 points
+		if ((waveLen % 32) != 0)
 			return;
 
 		size_t waveCount = getWaveCount();
@@ -302,7 +306,7 @@ struct Wavetable {
 			[=]() {saveDialog();}
 		));
 
-		int sizeOffset = 4;
+		int sizeOffset = 5;
 		std::vector<std::string> sizeLabels;
 		for (int i = sizeOffset; i <= 14; i++) {
 			sizeLabels.push_back(string::f("%d", 1 << i));