From 70429ade14ff73bcb6fa3a8a01ae202757da8c7d Mon Sep 17 00:00:00 2001
From: Cesare Ferrari <cesare@loftsoft.co.uk>
Date: Thu, 25 Jul 2019 12:24:29 +0100
Subject: [PATCH] Improve bela performance

---
 .../native/juce_linux_Bela.cpp                | 24 +++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 modules/juce_audio_devices/native/juce_linux_Bela.cpp

diff --git a/modules/juce_audio_devices/native/juce_linux_Bela.cpp b/modules/juce_audio_devices/native/juce_linux_Bela.cpp
old mode 100644
new mode 100755
index ce479f004e..363e3c571d
--- a/modules/juce_audio_devices/native/juce_linux_Bela.cpp
+++ b/modules/juce_audio_devices/native/juce_linux_Bela.cpp
@@ -34,6 +34,8 @@ public:
     {
         jassert (midiCallback != nullptr);
         midiInputs.add (this);
+
+        buffer.resize (32);
     }
 
     ~BelaMidiInput()
@@ -54,6 +56,8 @@ public:
 
     void poll()
     {
+        int receivedBytes = 0;
+
         for (;;)
         {
             auto data = midi.getInput();
@@ -61,9 +65,18 @@ public:
             if (data < 0)
                 break;
 
-            auto byte = (uint8) data;
-            concatenator.pushMidiData (&byte, 1, Time::getMillisecondCounter() * 0.001, midiInput, *midiCallback);
+            buffer[receivedBytes] = (uint8) data;
+            receivedBytes++;
+
+            if (receivedBytes == buffer.size())
+            {
+                pushMidiData (receivedBytes);
+                receivedBytes = 0;
+            }
         }
+
+        if (receivedBytes > 0)
+            pushMidiData (receivedBytes);
     }
 
     static Array<MidiDeviceInfo> getDevices (bool input)
@@ -77,6 +90,13 @@ public:
     }
 
 private:
+    void pushMidiData (int length)
+    {
+        concatenator.pushMidiData (buffer.data(), length, Time::getMillisecondCounter() * 0.001, midiInput, *midiCallback);
+    }
+
+    std::vector<uint8> buffer;
+
     static Array<int> findAllALSACardIDs()
     {
         Array<int> cards;