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-rw-r--r--plugins/adplug/adplug/player.cpp70
1 files changed, 70 insertions, 0 deletions
diff --git a/plugins/adplug/adplug/player.cpp b/plugins/adplug/adplug/player.cpp
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+++ b/plugins/adplug/adplug/player.cpp
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+/*
+ * Adplug - Replayer for many OPL2/OPL3 audio file formats.
+ * Copyright (C) 1999 - 2007 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
+ *
+ * player.cpp - Replayer base class, by Simon Peter <dn.tlp@gmx.net>
+ */
+
+#include "player.h"
+#include "adplug.h"
+#include "silentopl.h"
+
+/***** CPlayer *****/
+
+const unsigned short CPlayer::note_table[12] =
+ {363, 385, 408, 432, 458, 485, 514, 544, 577, 611, 647, 686};
+
+const unsigned char CPlayer::op_table[9] =
+ {0x00, 0x01, 0x02, 0x08, 0x09, 0x0a, 0x10, 0x11, 0x12};
+
+CPlayer::CPlayer(Copl *newopl)
+ : opl(newopl), db(CAdPlug::database)
+{
+}
+
+CPlayer::~CPlayer()
+{
+}
+
+unsigned long CPlayer::songlength(int subsong)
+{
+ CSilentopl tempopl;
+ Copl *saveopl = opl;
+ float slength = 0.0f;
+
+ // save original OPL from being overwritten
+ opl = &tempopl;
+
+ // get song length
+ rewind(subsong);
+ while(update() && slength < 600000) // song length limit: 10 minutes
+ slength += 1000.0f / getrefresh();
+ rewind(subsong);
+
+ // restore original OPL and return
+ opl = saveopl;
+ return (unsigned long)slength;
+}
+
+void CPlayer::seek(unsigned long ms)
+{
+ float pos = 0.0f;
+
+ rewind();
+ while(pos < ms && update()) // seek to new position
+ pos += 1000/getrefresh();
+}