1 files changed, 50 insertions, 0 deletions

diff --git a/apps/plugins/midi/synth.h b/apps/plugins/midi/synth.h
new file mode 100644
index 0000000000..daaf26d5f6
--- /dev/null
+++ b/apps/plugins/midi/synth.h
@@ -0,0 +1,50 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2005 Stepan Moskovchenko
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+int initSynth(struct MIDIfile * mf, char * filename, char * drumConfig);
+signed short int synthVoice(struct SynthObject * so);
+
+static inline void synthSample(int * mixL, int * mixR)
+{
+   register int dL=0;
+   register int dR=0;
+   register short sample=0;
+   register struct SynthObject *voicept=voices;
+   struct SynthObject *lastvoice=&voices[MAX_VOICES];
+
+    while(voicept!=lastvoice)
+    {
+        if(voicept->isUsed==1)
+        {
+            sample = synthVoice(voicept);
+            dL += (sample*chPanLeft[voicept->ch])>>7;
+            dR += (sample*chPanRight[voicept->ch])>>7;
+        }
+        voicept++;
+    }
+
+   *mixL=dL;
+   *mixR=dR;
+
+    /* TODO: Automatic Gain Control, anyone? */
+    /* Or, should this be implemented on the DSP's output volume instead? */
+
+    return;  /* No more ghetto lowpass filter.. linear intrpolation works well. */
+}
+