AGI: Split all sound generators into separate modules.

Now the sound subsystem of the engine finally is possible to grasp.
Also now it is obvious why CoCo3 sounds are not functioning.

svn-id: r49757

1 files changed, 80 insertions, 0 deletions

diff --git a/engines/agi/sound_coco3.cpp b/engines/agi/sound_coco3.cpp
new file mode 100644
index 0000000000..f054be0682
--- /dev/null
+++ b/engines/agi/sound_coco3.cpp
@@ -0,0 +1,80 @@
+/* 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 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 "agi/agi.h"
+
+#include "agi/sound_coco3.h"
+
+namespace Agi {
+
+static int cocoFrequencies[] = {
+	 130,  138,  146,  155,  164,  174,  184,  195,  207,  220,  233,  246,
+	 261,  277,  293,  311,  329,  349,  369,  391,  415,  440,  466,  493,
+	 523,  554,  587,  622,  659,  698,  739,  783,  830,  880,  932,  987,
+	1046, 1108, 1174, 1244, 1318, 1396, 1479, 1567, 1661, 1760, 1864, 1975,
+	2093, 2217, 2349, 2489, 2637, 2793, 2959, 3135, 3322, 3520, 3729, 3951
+};
+
+SoundGenCoCo3::SoundGenCoCo3(AgiEngine *vm, Audio::Mixer *pMixer) : SoundGen(vm, pMixer) {
+}
+
+SoundGenCoCo3::~SoundGenCoCo3() {
+}
+
+void SoundGenCoCo3::play(int resnum) {
+	int i = cocoFrequencies[0]; // Silence warning
+
+	i = i + 1;
+
+#if 0
+	int i = 0;
+	CoCoNote note;
+
+	do {
+		note.read(_chn[i].ptr);
+
+		if (note.freq != 0xff) {
+			playNote(0, cocoFrequencies[note.freq], note.volume);
+
+			uint32 start_time = _vm->_system->getMillis();
+
+			while (_vm->_system->getMillis() < start_time + note.duration) {
+                _vm->_system->updateScreen();
+
+                _vm->_system->delayMillis(10);
+			}
+		}
+	} while (note.freq != 0xff);
+#endif
+}
+
+void SoundGenCoCo3::stop() {
+}
+
+int SoundGenCoCo3::readBuffer(int16 *buffer, const int numSamples) {
+	return numSamples;
+}
+
+} // End of namespace Agi