scummvm/engines/ultima/nuvie/sound/origin_fx_adib_driver.h
2020-02-01 13:13:51 -08:00

98 lines
2.7 KiB
C++

/* 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.
*
*/
#ifndef NUVIE_SOUND_ORIGIN_FX_ADLIB_DRIVER_H
#define NUVIE_SOUND_ORIGIN_FX_ADLIB_DRIVER_H
#include "ultima/nuvie/core/nuvie_defs.h"
#include "ultima/nuvie/conf/configuration.h"
namespace Ultima {
namespace Nuvie {
class Copl;
class Configuration;
class OriginFXAdLibDriver {
public:
OriginFXAdLibDriver(Configuration *cfg, Copl *newopl);
~OriginFXAdLibDriver();
private:
Configuration *config;
Copl *opl;
unsigned char num_tim_records;
unsigned char *adlib_tim_data;
struct adlib_instrument {
sint8 channel;
sint8 note;
uint8 byte_68;
sint16 word_121;
uint8 byte_137;
sint16 word_cb;
sint16 word_3c;
unsigned char *tim_data;
};
adlib_instrument adlib_ins[11];
int adlib_num_active_channels; //either 6 or 9.
unsigned char *midi_chan_tim_ptr[32];
uint8 midi_chan_tim_off_10[32];
sint16 midi_chan_tim_off_11[32];
sint16 midi_chan_pitch[32];
sint16 midi_chan_volume[29];
uint8 byte_73[13];
uint8 adlib_bd_status;
public:
void init();
void play_note(uint8 channel, sint8 note, uint8 velocity);
void control_mode_change(uint8 channel, uint8 function, uint8 value);
void program_change(sint8 channel, uint8 program_number);
void pitch_bend(uint8 channel, uint8 pitch_lsb, uint8 pitch_msb);
void interrupt_vector();
private:
sint16 read_sint16(unsigned char *buf);
void midi_write_adlib(unsigned int r, unsigned char v);
void load_tim_file();
unsigned char *get_tim_data(uint8 program_number);
uint8 adlib_voice_op(sint8 voice);
uint8 adlib_voice_op1(sint8 voice);
uint16 sub_60D(sint16 val);
uint16 sub_4BF(uint8 channel, uint8 note, uint8 velocity, unsigned char *cur_tim_ptr);
void sub_45E(sint16 voice);
void sub_48E(sint16 voice, uint8 val);
void write_adlib_instrument(sint8 voice, unsigned char *tim_data);
};
} // End of namespace Nuvie
} // End of namespace Ultima
#endif