From 7ef0d724cd44a4058c3d7619e51d16c2bc1aa7fd Mon Sep 17 00:00:00 2001
From: mtytel <matthewtytel@gmail.com>
Date: Fri, 24 Jun 2016 16:05:26 -0400
Subject: [PATCH] Parallelizing SampleAndHold processor.

---
 src/operators.cpp | 7 +++++--
 src/operators.h   | 6 +++---
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/operators.cpp b/src/operators.cpp
index 94ea08e443..9ac0fea6d5 100644
--- a/src/operators.cpp
+++ b/src/operators.cpp
@@ -214,11 +214,14 @@ namespace mopo {
   }
 
   void SampleAndHoldBuffer::process() {
-    if (input()->source->buffer[0] == output()->buffer[0])
+    mopo_float value = input()->source->buffer[0];
+    mopo_float* dest = output()->buffer;
+    if (value == dest[0])
       return;
+
 #pragma clang loop vectorize(enable) interleave(enable)
     for (int i = 0; i < buffer_size_; ++i)
-      tick(i);
+      bufferTick(dest, value, i);
     processTriggers();
   }
 
diff --git a/src/operators.h b/src/operators.h
index 5289b9e659..fdcd99eb86 100644
--- a/src/operators.h
+++ b/src/operators.h
@@ -479,11 +479,11 @@ namespace mopo {
       void process() override;
 
       inline void tick(int i) override {
-        bufferTick(output()->buffer, input()->source->buffer, i);
+        bufferTick(output()->buffer, input()->source->buffer[0], i);
       }
 
-      inline void bufferTick(mopo_float* dest, const mopo_float* source, int i) {
-        dest[i] = source[0];
+      inline void bufferTick(mopo_float* dest, mopo_float value, int i) {
+        dest[i] = value;
       }
   };