From 4d87716a305e39723836553a81efade0b1d64e93 Mon Sep 17 00:00:00 2001
From: Paul Ferrand <paul@ferrand.cc>
Date: Wed, 16 Sep 2020 08:41:02 +0200
Subject: [PATCH] Offset the time so that the envelopes "end" on the correct
 value The envelope start is always considered to be the value before the
 current ramp started

---
 src/sfizz/FlexEnvelope.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sfizz/FlexEnvelope.cpp b/src/sfizz/FlexEnvelope.cpp
index 321093fc..d56aad25 100644
--- a/src/sfizz/FlexEnvelope.cpp
+++ b/src/sfizz/FlexEnvelope.cpp
@@ -165,11 +165,11 @@ void FlexEnvelope::Impl::process(absl::Span<float> out)
         const Curve& curve = *stageCurve_;
         size_t framesDone = 0;
         while ((time < stageEndTime || sustained) && frameIndex < maxFrameIndex) {
+            time += samplePeriod;
             float x = time * (1.0f / stageEndTime);
             float c = curve.evalNormalized(x);
             level = sourceLevel + c * (targetLevel - sourceLevel);
             out[frameIndex++] = level;
-            time += samplePeriod;
             ++framesDone;
         }
         currentLevel_ = level;