From c763e819bbafcb11421cc53e517ab7727aa9a2ad Mon Sep 17 00:00:00 2001
From: Paul Ferrand <paul@ferrand.cc>
Date: Fri, 13 Dec 2019 13:59:49 +0100
Subject: [PATCH] Add a bend step factor in the voice

---
 src/sfizz/Voice.cpp | 13 +++++++++----
 src/sfizz/Voice.h   |  1 +
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/sfizz/Voice.cpp b/src/sfizz/Voice.cpp
index 480f3d5e..9d138520 100644
--- a/src/sfizz/Voice.cpp
+++ b/src/sfizz/Voice.cpp
@@ -105,6 +105,7 @@ void sfz::Voice::startVoice(Region* region, int delay, int channel, int number,
     sourcePosition = region->getOffset();
     initialDelay = delay + static_cast<uint32_t>(region->getDelay() * sampleRate);
     baseFrequency = midiNoteFrequency(number);
+    bendStepFactor = centsFactor(region->bendStep);
     prepareEGEnvelope(initialDelay, value);
 }
 
@@ -371,8 +372,10 @@ void sfz::Voice::fillWithData(AudioSpan<float> buffer) noexcept
     auto rightCoeffs = tempSpan2.first(buffer.getNumFrames());
 
     fill<float>(jumps, pitchRatio * speedRatio);
-    if (region->bendStep > 1)
-        pitchBendEnvelope.getQuantizedBlock(bends, region->bendStep);
+    if (region->bendStep > 1){
+        pitchBendEnvelope.getQuantizedBlock(bends, bendStepFactor);
+        DBG("Last bend value " << bends.back());
+    }
     else
         pitchBendEnvelope.getBlock(bends);
 
@@ -459,8 +462,10 @@ void sfz::Voice::fillWithGenerator(AudioSpan<float> buffer) noexcept
     const float step = baseFrequency * twoPi<float> / sampleRate;
     fill<float>(jumps, step);
 
-    if (region->bendStep > 1)
-        pitchBendEnvelope.getQuantizedBlock(bends, region->bendStep);
+    if (region->bendStep > 1){
+        pitchBendEnvelope.getQuantizedBlock(bends, bendStepFactor);
+        DBG("Last bend value " << bends.back());
+    }
     else
         pitchBendEnvelope.getBlock(bends);
 
diff --git a/src/sfizz/Voice.h b/src/sfizz/Voice.h
index 22617162..7f073d7f 100644
--- a/src/sfizz/Voice.h
+++ b/src/sfizz/Voice.h
@@ -318,6 +318,7 @@ private:
     LinearEnvelope<float> positionEnvelope;
     LinearEnvelope<float> widthEnvelope;
     MultiplicativeEnvelope<float> pitchBendEnvelope;
+    float bendStepFactor { centsFactor(1) };
 
     HistoricalBuffer<float> powerHistory { config::powerHistoryLength };
     LEAK_DETECTOR(Voice);