1 files changed, 80 insertions, 0 deletions
diff --git a/sound/iff.cpp b/sound/iff.cpp
new file mode 100644
index 0000000000..2fd6378b13
--- /dev/null
+++ b/sound/iff.cpp
@@ -0,0 +1,80 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001-2006 The ScummVM project
+ *
+ * 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "sound/iff.h"
+#include "sound/audiostream.h"
+#include "sound/mixer.h"
+
+namespace Audio {
+
+
+void A8SVXDecoder::readVHDR(Common::IFFChunk &chunk) {
+	_header.oneShotHiSamples = chunk.readUint32BE();
+	_header.repeatHiSamples = chunk.readUint32BE();
+	_header.samplesPerHiCycle = chunk.readUint32BE();
+	_header.samplesPerSec = chunk.readUint16BE();
+	_header.octaves = chunk.readByte();
+	_header.compression = chunk.readByte();
+	_header.volume = chunk.readUint32BE();
+}
+
+void A8SVXDecoder::readBODY(Common::IFFChunk &chunk) {
+
+	switch (_header.compression) {
+	case 0:
+		_dataSize = chunk.size;
+		_data = (byte*)malloc(_dataSize);
+		chunk.read(_data, _dataSize);
+		break;
+
+	case 1:
+		warning("compressed IFF audio is not supported");
+		break;
+	}
+
+}
+
+
+A8SVXDecoder::A8SVXDecoder(Common::ReadStream &input, Voice8Header &header, byte *&data, uint32 &dataSize) :
+	IFFParser(input), _header(header), _data(data), _dataSize(dataSize) {
+	if (_typeId != ID_8SVX)
+		error("unknown audio format");
+}
+
+void A8SVXDecoder::decode() {
+
+	Common::IFFChunk *chunk;
+
+	while ((chunk = nextChunk()) != 0) {
+		switch (chunk->id) {
+		case ID_VHDR:
+			readVHDR(*chunk);
+			break;
+
+		case ID_BODY:
+			readBODY(*chunk);
+			break;
+		}
+	}
+}
+
+}