Make engine ask output module for buffer size. Use this new feature to adapt internal buffers to buffer size reported by jack.

2 files changed, 11 insertions, 4 deletions

diff --git a/src/audiooutputengine.h b/src/audiooutputengine.h
index 8b2b768..7f15e49 100644
--- a/src/audiooutputengine.h
+++ b/src/audiooutputengine.h
@@ -50,6 +50,11 @@ public:
 
   // Reimplement this if you wish to use internal buffer directly.
   virtual sample_t *getBuffer(int ch) { return NULL; }
+
+  /*
+   * Overload this method to force engine to use different buffer size.
+   */
+  virtual size_t getBufferSize() { return 1024; }
 };
 
 #endif/*__DRUMGIZMO_AUDIOOUTPUTENGINE_H__*/
diff --git a/src/drumgizmo.cc b/src/drumgizmo.cc
index 4bd6a77..5d67c86 100644
--- a/src/drumgizmo.cc
+++ b/src/drumgizmo.cc
@@ -284,13 +284,13 @@ bool DrumGizmo::run(size_t pos, sample_t *samples, size_t nsamples)
 
 void DrumGizmo::run(int endpos)
 {
+  size_t pos = 0;
+  size_t nsamples = oe->getBufferSize();
+  sample_t *samples = (sample_t *)malloc(nsamples * sizeof(sample_t));
+
   ie->start();
   oe->start();
 
-  size_t pos = 0;
-  size_t nsamples = 128;//1024;
-  sample_t samples[nsamples];
-
   while(run(pos, samples, nsamples) == true) {
     pos += nsamples;
     if(endpos != -1 && pos >= (size_t)endpos) break;
@@ -298,6 +298,8 @@ void DrumGizmo::run(int endpos)
 
   ie->stop();
   oe->stop();
+
+  free(samples);
 }
 
 #ifdef SSE