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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.
*
* $URL$
* $Id$
*/
#include "common/scummsys.h"
#if defined(__amigaos4__)
#include "sound/mpu401.h"
#include "common/util.h"
#include "common/endian.h"
#include <proto/camd.h>
#include <proto/dos.h>
#include <proto/exec.h>
#include <proto/intuition.h>
/*
* CAMD sequencer driver
* Mostly cut'n'pasted from FreeSCI by Christoph Reichenbach
*/
class MidiDriver_CAMD : public MidiDriver_MPU401 {
public:
MidiDriver_CAMD();
int open();
void close();
void send(uint32 b);
void sysEx(const byte *msg, uint16 length);
private:
bool _isOpen;
struct Library *_CamdBase;
struct CamdIFace *_ICamd;
struct MidiLink *_midi_link;
};
MidiDriver_CAMD::MidiDriver_CAMD()
: _isOpen(false), _CamdBase(NULL), _ICamd(NULL), _midi_link(NULL) {
}
int MidiDriver_CAMD::open() {
const char *devicename = "via686.out.0";
if (_isOpen)
return MERR_ALREADY_OPEN;
_CamdBase = IExec->OpenLibrary("camd.library", 36L);
if (!_CamdBase) {
error("Could not open 'camd.library'");
return -1;
}
_ICamd = (struct CamdIFace *) IExec->GetInterface(_CamdBase, "main", 1, NULL);
if (!_ICamd) {
IExec->CloseLibrary(_CamdBase);
error("Error while retrieving CAMD interface");
return -1;
}
struct MidiNode *midi_node;
midi_node = _ICamd->CreateMidi(MIDI_MsgQueue, 0L, MIDI_SysExSize, 4096L, MIDI_Name, "scummvm", TAG_END);
if (!midi_node) {
IExec->CloseLibrary(_CamdBase);
error("Could not create CAMD MIDI node");
return -1;
}
_midi_link = _ICamd->AddMidiLink(midi_node, MLTYPE_Sender, MLINK_Location, devicename, TAG_END);
if (!_midi_link) {
IExec->CloseLibrary(_CamdBase);
error("Could not create CAMD MIDI link to '%s'", devicename);
return -1;
}
_isOpen = true;
return 0;
}
void MidiDriver_CAMD::close() {
_isOpen = false;
MidiDriver_MPU401::close();
if (_CamdBase)
IExec->CloseLibrary(_CamdBase);
}
void MidiDriver_CAMD::send(uint32 b) {
ULONG data = READ_LE_UINT32(&b);
_ICamd->PutMidi(_midi_link, data);
}
void MidiDriver_CAMD::sysEx(const byte *msg, uint16 length) {
unsigned char buf[256];
assert(length + 2 <= 256);
// Add SysEx frame
buf[0] = 0xF0;
memcpy(buf + 1, msg, length);
buf[length + 1] = 0xF7;
// Send it
_ICamd->PutSysEx(_midi_link, buf);
}
MidiDriver *MidiDriver_CAMD_create() {
return new MidiDriver_CAMD();
}
#endif
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