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/* 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.
*/
// Disable symbol overrides so that we can use system headers.
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "common/scummsys.h"
#if defined(USE_SNDIO)
#include "common/error.h"
#include "common/textconsole.h"
#include "common/util.h"
#include "audio/musicplugin.h"
#include "audio/mpu401.h"
#include <sndio.h>
////////////////////////////////////////
//
// sndio MIDI driver
//
////////////////////////////////////////
class MidiDriver_Sndio : public MidiDriver_MPU401 {
public:
MidiDriver_Sndio();
int open();
bool isOpen() const { return hdl != NULL; }
void close();
void send(uint32 b);
void sysEx(const byte *msg, uint16 length);
private:
struct mio_hdl *hdl;
};
MidiDriver_Sndio::MidiDriver_Sndio() {
hdl = NULL;
}
int MidiDriver_Sndio::open() {
if (hdl != NULL)
return MERR_ALREADY_OPEN;
hdl = ::mio_open(NULL, MIO_OUT, 0);
if (hdl == NULL)
warning("Could open MIDI port (no music)");
return 0;
}
void MidiDriver_Sndio::close() {
MidiDriver_MPU401::close();
if (!hdl)
return;
mio_close(hdl);
hdl = NULL;
}
void MidiDriver_Sndio::send(uint32 b) {
unsigned char buf[4];
unsigned int len;
if (!hdl)
return;
buf[0] = b & 0xff;
buf[1] = (b >> 8) & 0xff;
buf[2] = (b >> 16) & 0xff;
buf[3] = (b >> 24) & 0xff;
switch (buf[0] & 0xf0) {
case 0xf0:
return;
case 0xc0:
case 0xd0:
len = 2;
break;
default:
len = 3;
}
mio_write(hdl, buf, len);
}
void MidiDriver_Sndio::sysEx(const byte *msg, uint16 length) {
if (!hdl)
return;
unsigned char buf[266];
assert(length + 2 <= ARRAYSIZE(buf));
// Add SysEx frame
buf[0] = 0xF0;
memcpy(buf + 1, msg, length);
buf[length + 1] = 0xF7;
mio_write(hdl, buf, length + 2);
}
// Plugin interface
class SndioMusicPlugin : public MusicPluginObject {
public:
const char *getName() const {
return "Sndio";
}
const char *getId() const {
return "sndio";
}
MusicDevices getDevices() const;
Common::Error createInstance(MidiDriver **mididriver, MidiDriver::DeviceHandle = 0) const;
};
MusicDevices SndioMusicPlugin::getDevices() const {
MusicDevices devices;
devices.push_back(MusicDevice(this, "", MT_GM));
return devices;
}
Common::Error SndioMusicPlugin::createInstance(MidiDriver **mididriver, MidiDriver::DeviceHandle) const {
*mididriver = new MidiDriver_Sndio();
return Common::kNoError;
}
//#if PLUGIN_ENABLED_DYNAMIC(Sndio)
//REGISTER_PLUGIN_DYNAMIC(SNDIO, PLUGIN_TYPE_MUSIC, SndioMusicPlugin);
//#else
REGISTER_PLUGIN_STATIC(SNDIO, PLUGIN_TYPE_MUSIC, SndioMusicPlugin);
//#endif
#endif
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