1 files changed, 90 insertions, 0 deletions
diff --git a/plugins/adplug/adplug/diskopl.cpp b/plugins/adplug/adplug/diskopl.cpp
new file mode 100644
index 00000000..3296c0a1
--- /dev/null
+++ b/plugins/adplug/adplug/diskopl.cpp
@@ -0,0 +1,90 @@
+/*
+ * Adplug - Replayer for many OPL2/OPL3 audio file formats.
+ * Copyright (C) 1999 - 2005 Simon Peter, <dn.tlp@gmx.net>, et al.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * diskopl.cpp - Disk Writer OPL, by Simon Peter <dn.tlp@gmx.net>
+ */
+
+#include "diskopl.h"
+
+//static const unsigned short note_table[12] = {363,385,408,432,458,485,514,544,577,611,647,686};
+const unsigned char CDiskopl::op_table[9] = {0x00, 0x01, 0x02, 0x08, 0x09, 0x0a, 0x10, 0x11, 0x12};
+
+CDiskopl::CDiskopl(std::string filename)
+  : old_freq(0.0f), del(1), nowrite(false)
+{
+  unsigned short clock = 0xffff;
+
+  currType = TYPE_OPL3;
+  f = fopen(filename.c_str(),"wb");
+  fwrite("RAWADATA",8,1,f);
+  fwrite(&clock,sizeof(clock),1,f);
+}
+
+CDiskopl::~CDiskopl()
+{
+  fclose(f);
+}
+
+void CDiskopl::update(CPlayer *p)
+{
+  unsigned short	clock;
+  unsigned int		wait;
+
+  if(p->getrefresh() != old_freq) {
+    old_freq = p->getrefresh();
+    del = wait = (unsigned int)(18.2f / old_freq);
+    clock = (unsigned short)(1192737/(old_freq*(wait+1)));
+    fputc(0,f); fputc(2,f);
+    fwrite(&clock,2,1,f);
+  }
+  if(!nowrite) {
+    fputc(del+1,f);
+    fputc(0,f);
+  }
+}
+
+void CDiskopl::setchip(int n)
+{
+  Copl::setchip(n);
+
+  if(!nowrite) {
+    fputc(currChip + 1, f);
+    fputc(2, f);
+  }
+}
+
+void CDiskopl::write(int reg, int val)
+{
+  if(!nowrite)
+    diskwrite(reg,val);
+}
+
+void CDiskopl::init()
+{
+  for (int i=0;i<9;i++) {	// stop instruments
+    diskwrite(0xb0 + i,0);		// key off
+    diskwrite(0x80 + op_table[i],0xff);	// fastest release
+  }
+  diskwrite(0xbd,0);	// clear misc. register
+}
+
+void CDiskopl::diskwrite(int reg, int val)
+{
+  fputc(val,f);
+  fputc(reg,f);
+}