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https://github.com/libretro/scummvm.git
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106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001-2006 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*/
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#include "common/stdafx.h"
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#include "sound/mpu401.h"
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#include "common/util.h"
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#include "Pa1Lib.h"
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class MidiDriver_YamahaPa1:public MidiDriver_MPU401 {
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public:
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MidiDriver_YamahaPa1();
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int open();
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void close();
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void send(uint32 b);
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private:
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UInt8 _midiHandle;
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Boolean _isOpen;
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};
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MidiDriver_YamahaPa1::MidiDriver_YamahaPa1() {
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_isOpen = false;
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_midiHandle = 0;
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}
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int MidiDriver_YamahaPa1::open() {
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if (!(_isOpen = Pa1Lib_midiOpen(NULL, &_midiHandle)))
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return MERR_DEVICE_NOT_AVAILABLE;
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return 0;
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}
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void MidiDriver_YamahaPa1::close() {
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if (_isOpen) {
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_isOpen = false;
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MidiDriver_MPU401::close();
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for (UInt8 channel = 0; channel < 16; channel++) {
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Pa1Lib_midiControlChange(_midiHandle, channel, 120,0); // all sound off
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Pa1Lib_midiControlChange(_midiHandle, channel, 121,0); // reset all controller
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Pa1Lib_midiControlChange(_midiHandle, channel, 123, 0); // all notes off
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}
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Pa1Lib_midiClose(_midiHandle);
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}
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}
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void MidiDriver_YamahaPa1::send(uint32 b) {
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if (!_isOpen)
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return;
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UInt8 midiCmd[4];
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UInt8 chanID,mdCmd;
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midiCmd[3] = (b & 0xFF000000) >> 24;
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midiCmd[2] = (b & 0x00FF0000) >> 16;
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midiCmd[1] = (b & 0x0000FF00) >> 8;
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midiCmd[0] = (b & 0x000000FF);
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chanID = (midiCmd[0] & 0x0F) ;
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mdCmd = midiCmd[0] & 0xF0;
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switch (mdCmd) {
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case 0x80: // note off
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Pa1Lib_midiNoteOff(_midiHandle, chanID, midiCmd[1], 0);
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break;
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case 0x90: // note on
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Pa1Lib_midiNoteOn(_midiHandle, chanID, midiCmd[1], midiCmd[2]);
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break;
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case 0xB0: // control change
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Pa1Lib_midiControlChange(_midiHandle, chanID, midiCmd[1], midiCmd[2]);
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break;
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case 0xC0: // progam change
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Pa1Lib_midiProgramChange(_midiHandle, chanID, midiCmd[1]);
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break;
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case 0xE0: // pitchBend
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Pa1Lib_midiPitchBend(_midiHandle, chanID, (short)(midiCmd[1] | (midiCmd[2] << 8)));
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break;
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}
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}
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MidiDriver *MidiDriver_YamahaPa1_create() {
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return new MidiDriver_YamahaPa1();
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}
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