DummyBackend: fix midi event mux+sorting

[ardour.git] / libs / ardour / thread_buffers.cc

diff --git a/libs/ardour/thread_buffers.cc b/libs/ardour/thread_buffers.cc
index fd3160bb15a81933b4dc291d084631f2bd571ca4..b51576bfc920e1e46a5b908f38b5fe58dd106182 100644 (file)
--- a/libs/ardour/thread_buffers.cc
+++ b/libs/ardour/thread_buffers.cc
@@ -40,7 +40,7 @@ ThreadBuffers::ThreadBuffers ()
 }
 
 void
-ThreadBuffers::ensure_buffers (ChanCount howmany)
+ThreadBuffers::ensure_buffers (ChanCount howmany, size_t custom)
 {
        // std::cerr << "ThreadBuffers " << this << " resize buffers with count = " << howmany << std::endl;
 
@@ -60,7 +60,14 @@ ThreadBuffers::ensure_buffers (ChanCount howmany)
 
        for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
                size_t count = std::max (scratch_buffers->available().get(*t), howmany.get(*t));
-               size_t size = _engine->raw_buffer_size (*t);
+               size_t size;
+               if (custom > 0) {
+                       size = custom;
+               } else {
+                       size = (*t == DataType::MIDI)
+                               ? _engine->raw_buffer_size (*t)
+                               : _engine->raw_buffer_size (*t) / sizeof (Sample);
+               }
 
                scratch_buffers->ensure_buffers (*t, count, size);
                mix_buffers->ensure_buffers (*t, count, size);
@@ -68,12 +75,14 @@ ThreadBuffers::ensure_buffers (ChanCount howmany)
                route_buffers->ensure_buffers (*t, count, size);
        }
 
+       size_t audio_buffer_size = custom > 0 ? custom : _engine->raw_buffer_size (DataType::AUDIO) / sizeof (Sample);
+
        delete [] gain_automation_buffer;
-       gain_automation_buffer = new gain_t[_engine->raw_buffer_size (DataType::AUDIO)];
+       gain_automation_buffer = new gain_t[audio_buffer_size];
        delete [] send_gain_automation_buffer;
-       send_gain_automation_buffer = new gain_t[_engine->raw_buffer_size (DataType::AUDIO)];
+       send_gain_automation_buffer = new gain_t[audio_buffer_size];
 
-       allocate_pan_automation_buffers (_engine->raw_buffer_size (DataType::AUDIO), howmany.n_audio(), false);
+       allocate_pan_automation_buffers (audio_buffer_size, howmany.n_audio(), false);
 }
 
 void