Initial commit

engines/ultima/nuvie/sound/adplug/adplug_player.cpp

@@ -0,0 +1,71 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ultima/nuvie/sound/adplug/adplug_player.h"
+#include "ultima/nuvie/sound/adplug/silent_opl.h"
+
+namespace Ultima {
+namespace Nuvie {
+
+/***** 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) {
+}
+
+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();
+}
+
+} // End of namespace Nuvie
+} // End of namespace Ultima