1 files changed, 83 insertions, 0 deletions
diff --git a/kernel/framework/vmix_core/outexport.inc b/kernel/framework/vmix_core/outexport.inc
new file mode 100644
index 0000000..6a28b3c
--- /dev/null
+++ b/kernel/framework/vmix_core/outexport.inc
@@ -0,0 +1,83 @@
+#ifdef CONFIG_OSS_VMIX_FLOAT
+/*
+ * Purpose: Local output buffer to device export routine for vmix (FP version)
+ */
+/*
+ *
+ * This file is part of Open Sound System.
+ *
+ * Copyright (C) 4Front Technologies 1996-2008.
+ *
+ * This this source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ */
+
+int i, ch, och;
+double vol;
+
+vol = vmix_db_table[eng->outvol / 5];
+
+for (ch = 0; ch < channels; ch++)
+  {
+    double vu;
+    float *chbuf;
+
+    och = eng->channel_order[ch];
+    op = (SAMPLE_TYPE *) outbuf;
+    op += och;
+
+    chbuf = chbufs[ch];
+
+    vu = eng->vu[och % 2];
+    vu = vu / 255.0;
+
+    for (i = 0; i < samples; i++)
+      {
+	double tmp;
+
+#if 0 && defined(SINE_DEBUG)
+	tmp = sine_table[sine_phase[ch]];
+	sine_phase[ch] = (sine_phase[ch] + 1 + ch / 2) % SINE_SIZE;
+#else
+	tmp = *chbuf++;
+#endif
+
+	tmp *= vol;
+
+/*
+ * Check for clipping. Decrease volume if necessary.
+ */
+	if (tmp < -1.0)
+	  {
+	    vol /= -tmp;
+	    eng->outvol--;
+	    tmp = -1.0;
+	  }
+	else if (tmp > 1.0)
+	  {
+	    vol /= tmp;
+	    eng->outvol--;
+	    tmp = 1.0;
+	  }
+
+	*op = VMIX_BYTESWAP ((SAMPLE_TYPE) (tmp * SAMPLE_RANGE));
+	op += channels;
+
+	/* VU meter */
+	if (tmp < 0.0)
+	  tmp = -tmp;
+	if (tmp > vu)
+	  vu = tmp;
+      }
+
+    if (och < 2)
+      {
+	vu = vu * 255.0;
+	eng->vu[och] = (int)vu;
+      }
+  }
+#else
+#include "outexport_int.inc"
+#endif