ref: dfde0077ffe7670c8119fe03bd33b7ea09c5a791
dir: /src/audiolib/newgf1.h/
/*
Copyright (C) 1994-1995 Apogee Software, Ltd.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/***************************************************************************
* NAME: GF1.H
** COPYRIGHT:
** "Copyright (c) 1991,1992, by FORTE
**
** "This software is furnished under a license and may be used,
** copied, or disclosed only in accordance with the terms of such
** license and with the inclusion of the above copyright notice.
** This software or any other copies thereof may not be provided or
** otherwise made available to any other person. No title to and
** ownership of the software is hereby transfered."
****************************************************************************
* CREATION DATE: 07/01/92
*--------------------------------------------------------------------------*
* VERSION DATE NAME DESCRIPTION
*> 1.0 07/01/92 Original
***************************************************************************/
#ifndef _GF1_H /* allow header to be processed only once */
#define _GF1_H
/* error codes */
#define OK 0
#define NO_MORE_VOICES -1
#define BASE_NOT_FOUND 1
#define BAD_IRQ 2
#define BAD_DMA 3
#define OS_LOADED 4
#define NOT_LOADED 5
#define NO_MEMORY 6
#define DMA_BUSY 7
#define NO_MORE_HANDLERS 8
#define DMA_HUNG 9
#define CARD_NOT_FOUND 10
#define CARD_BEING_USED 11
#define NO_MORE_INTERRUPTS 12
#define BAD_TIMER 13
#define BAD_PATCH 14
#define OLD_PATCH 15
#define DOS_ERROR 16
#define FILE_NOT_FOUND 17
/* bits */
#define BIT0 0x01
#define BIT1 0x02
#define BIT2 0x04
#define BIT3 0x08
#define BIT4 0x10
#define BIT5 0x20
#define BIT6 0x40
#define BIT7 0x80
/* bounds for volume enveloping functions */
#define MIN_OFFSET 5U
#define MAX_OFFSET 251U
/* bounds for voice allocation */
#define MIN_VOICES 14
#define MAX_VOICES 32
/* DMA control bits */
#define DMA_ENABLE BIT0
#define DMA_READ BIT1
#define DMA_WIDTH_16 BIT2 /* width of DMA channel */
#define DMA_RATE_DIV_1 BIT3
#define DMA_RATE_DIV_2 BIT4
#define DMA_IRQ_ENABLE BIT5
#define DMA_IRQ_PRESENT BIT6
#define DMA_DATA_16 BIT6 /* width of data */
#define DMA_INVERT_MSB BIT7
/* SAMPLE control bits */
#define DMA_STEREO 2
/* DMA flags */
#define GF1_RECORD 0 /* use dma control or sample control */
#define GF1_DMA 1
/* MIDI control register */
#define MIDI_RESET (BIT0|BIT1)
#define MIDI_TD_INT BIT5
#define MIDI_RD_INT BIT7
/* MIDI_STATUS_REGISTER */
#define MIDI_RD BIT0
#define MIDI_TD BIT1
#define MIDI_ERR_FRAMING BIT4
#define MIDI_ERR_OVERRUN BIT5
/* digital playback flags */
#define TYPE_8BIT BIT0 /* 1 use 8 bit data */
/* 0 use 16 bit data */
#define TYPE_PRELOAD BIT1 /* preload data */
#define TYPE_INVERT_MSB BIT2 /* invert most significant bit during dma */
#define TYPE_STEREO BIT3 /* 1 for stereo data */
/* sound effects and digital music types */
#define SND_LOOP_MASK (BIT0|BIT1)
#define SND_LOOP_NONE 0
#define SND_LOOP 1
#define SND_LOOP_BIDIR 2
#define SND_8BIT (BIT2)
#define SND_BACKWARD (BIT3)
#define SOUND_PLAYING 2
#define SOUND_ACTIVE 1
/* patch macros */
#define HEADER_SIZE 12
#define ID_SIZE 10
#define DESC_SIZE 60
#define RESERVED_SIZE 40
#define PATCH_HEADER_RESERVED_SIZE 36
#define LAYER_RESERVED_SIZE 40
#define PATCH_DATA_RESERVED_SIZE 36
#define GF1_HEADER_TEXT "GF1PATCH110"
#define INST_NAME_SIZE 16
#define ENVELOPES 6
#define MAX_LAYERS 4
/* patch modes */
#define PATCH_16 BIT0
#define PATCH_UNSIGNED BIT1
#define PATCH_LOOPEN BIT2
#define PATCH_BIDIR BIT3
#define PATCH_BACKWARD BIT4
#define PATCH_SUSTAIN BIT5
#define PATCH_NO_SRELEASE BIT6
#define PATCH_FAST_REL BIT7
/* flags for patch loading */
#define PATCH_LOAD_8_BIT BIT0
/* digital playback callback reasons & return values */
#define DIG_DONE 0
#define DIG_MORE_DATA 1
#define DIG_BUFFER_DONE 2
#define DIG_PAUSE 3
/* log table used for vibrato and pitch bend. log table made public for
** developers use */
#define LOG_TAB_SIZE 12
extern long gf1_log_table[LOG_TAB_SIZE];
#if defined(__BORLANDC__)
#undef RFAR
#define RFAR far
#elif defined(_MSC_VER) && (_MSC_VER <= 600)
#define RFAR far
#elif defined(_MSC_VER) && (_MSC_VER > 600)
#define RFAR __far
#else
#undef RFAR
#define RFAR
#endif
/* structure definitions */
struct load_os
{
unsigned short voices;
unsigned short forced_base_port;
unsigned char forced_gf1_irq;
unsigned char forced_midi_irq;
unsigned char forced_channel_in;
unsigned char forced_channel_out;
};
struct patchheader
{
char header[ HEADER_SIZE ];
char gravis_id[ ID_SIZE ]; /* Id = "ID#000002" */
char description[ DESC_SIZE ];
unsigned char instruments;
char voices;
char channels;
unsigned short wave_forms;
unsigned short master_volume;
unsigned long data_size;
char reserved[ PATCH_HEADER_RESERVED_SIZE ];
};
struct instrumentdata
{
unsigned short instrument;
char instrument_name[ INST_NAME_SIZE ];
long instrument_size;
char layers;
char reserved[ RESERVED_SIZE ];
};
struct layerdata
{
char layer_duplicate;
char layer;
long layer_size;
char samples;
char reserved[ LAYER_RESERVED_SIZE ];
};
struct patchdata
{
char wave_name[7];
unsigned char fractions;
long wave_size;
long start_loop;
long end_loop;
unsigned short sample_rate;
long low_frequency;
long high_frequency;
long root_frequency;
short tune;
unsigned char balance;
unsigned char envelope_rate[ ENVELOPES ];
unsigned char envelope_offset[ ENVELOPES ];
unsigned char tremolo_sweep;
unsigned char tremolo_rate;
unsigned char tremolo_depth;
unsigned char vibrato_sweep;
unsigned char vibrato_rate;
unsigned char vibrato_depth;
char modes;
short scale_frequency;
unsigned short scale_factor; /* from 0 to 2048 or 0 to 2 */
char reserved[ PATCH_DATA_RESERVED_SIZE ];
};
struct wave_struct
{
unsigned long start_loop;
unsigned long end_loop;
long low_frequency;
long high_frequency;
long root_frequency;
unsigned long mem;
unsigned short scale_frequency;
unsigned short sample_rate;
unsigned short scale_factor;
unsigned short start_acc_low;
unsigned short start_acc_high;
unsigned short start_low;
unsigned short start_high;
unsigned short end_low;
unsigned short end_high;
unsigned short end_acc_low;
unsigned short end_acc_high;
unsigned short sample_ratio;
unsigned long wave_size;
unsigned char fractions;
unsigned char balance;
unsigned char envelope_rate[ ENVELOPES ];
unsigned char envelope_offset[ ENVELOPES ];
unsigned char tremolo_sweep;
unsigned char tremolo_rate;
unsigned char tremolo_depth;
unsigned char vibrato_sweep;
unsigned char vibrato_rate;
unsigned char vibrato_depth;
unsigned char modes;
};
struct patchinfo {
struct patchheader header;
struct instrumentdata idata;
};
struct patch {
short nlayers;
struct wave_struct RFAR *layer_waves[MAX_LAYERS];
short layer_nwaves[MAX_LAYERS];
unsigned short detune;
};
struct gf1_dma_buff {
unsigned char RFAR *vptr;
unsigned long paddr;
};
struct gf1_sound {
unsigned long mem_pos;
unsigned long start_loop;
unsigned long end_loop;
unsigned char type;
};
/* GLOBAL VARIABLES (flags) */
extern char gf1_linear_volumes;
extern char gf1_dig_use_extra_voice;
/* FUNCTION PROTOTYPES */
/* Initializeation routines */
int gf1_init_ports(int);
int gf1_load_os(struct load_os RFAR *os);
int gf1_unload_os(void);
void gf1_set_appname(char RFAR *);
void reset_ultra(int);
int gf1_asm_init(void);
unsigned char gf1_peek(unsigned long address);
void gf1_poke(unsigned long address, unsigned char data);
void gf1_poke_block(unsigned char RFAR *data, unsigned long address, unsigned long len, unsigned char dma_control);
char gf1_good_dram(unsigned long address);
int GetUltraCfg(struct load_os RFAR *os);
unsigned long gf1_malloc(unsigned long);
void gf1_free(unsigned long);
unsigned long gf1_mem_avail(void);
unsigned long gf1_mem_largest_avail(void);
void gf1_delay(void);
int gf1_allocate_voice(int priority, void (RFAR *steal_notify)(int));
void gf1_free_voice(unsigned int i);
void gf1_adjust_priority(int voice, int priority);
int gf1_dram_xfer(struct gf1_dma_buff RFAR *dptr, unsigned long size, unsigned long dram_address, unsigned char dma_control, unsigned short flags);
void gf1_stop_dma(void);
long convert_to_16bit(long address);
int gf1_wait_dma(void);
int gf1_dma_ready(void);
unsigned long gf1_amount_xferred(void);
int gf1_detect_card(unsigned short port);
char *gf1_error_str(int);
int gf1_play_digital(unsigned short priority, unsigned char RFAR *buffer,
unsigned long size, unsigned long gf1_addr, unsigned short volume,
unsigned short pan, unsigned short frequency, unsigned char type,
struct gf1_dma_buff RFAR *dptr,
int (RFAR *callback)(int, int, unsigned char RFAR * RFAR *, unsigned long RFAR *));
void gf1_restart_digital(int voice);
void gf1_start_digital(int voice);
void gf1_pause_digital(int voice);
void RFAR gf1_stop_digital(int voice);
void gf1_dig_set_dma_rate(unsigned short rate);
unsigned long gf1_digital_position(int voice);
int gf1_myatoi(void);
int gf1_update_waveform(struct wave_struct RFAR *wave_info);
int gf1_get_patch_info(char RFAR *patch_file, struct patchinfo RFAR *patch);
int gf1_load_patch(char RFAR *patch_file, struct patchinfo RFAR *patchinfo,
struct patch RFAR *patch,
struct gf1_dma_buff RFAR *dptr, unsigned short size,
unsigned char RFAR *wavemem, int flags);
void gf1_unload_patch(struct patch RFAR *patch);
void gf1_detune_patch(struct patch RFAR *patch, unsigned short detune);
unsigned short gf1_calc_fc(unsigned int sample_ratio,long root,long frequency);
void gf1_midi_stop_voice(int voice);
void gf1_midi_wait_voice(int voice);
unsigned short gf1_midi_status_note(int voice);
unsigned short gf1_midi_status_voice(int voice);
void RFAR gf1_midi_stop_note(int note_voice);
void gf1_midi_note_on(struct patch RFAR *patch, int priority, int note, int velocity, int channel);
void gf1_midi_note_off(int note, int channel);
void gf1_midi_silence_patch_notes(struct patch RFAR *patch);
void gf1_midi_patch_removed(struct patch RFAR *patch);
int gf1_enable_timer1(int (RFAR *callback)(void), int resolution);
int gf1_enable_timer2(int (RFAR *callback)(void), int resolution);
void gf1_disable_timer1(void);
void gf1_disable_timer2(void);
void gf1_channel_pitch_bend(int channel, unsigned int bend);
void gf1_midi_synth_volume(unsigned short synth, int master_volume);
void gf1_midi_change_program(struct patch RFAR *patch, int channel);
void gf1_midi_set_vibrato(int channel, int value);
void gf1_midi_change_volume(int channel, unsigned int volume);
void gf1_midi_set_balance(int balance, int channel);
void gf1_midi_channel_sustain(int channel, int sustain);
void gf1_midi_all_notes_off(int channel);
void gf1_midi_pitch_bend(int channel, int lsb, int msb);
void gf1_midi_parameter(int channel, int control, int value);
int gf1_midi_get_channel_notes(int channel, int notes[]);
int gf1_midi_get_channel_volume(int channel);
int gf1_midi_get_master_volume(void);
int gf1_midi_get_volume(int voice);
unsigned short gf1_read(int handle, void RFAR *io_buffer, unsigned short size);
unsigned short gf1_close_file(int handle);
unsigned int gf1_seek(int handle, unsigned long offset, int method);
int gf1_open(char RFAR *name);
#ifdef __FLAT__
int gf1_atoi(char RFAR **str, int base);
#else
int gf1_atoi(void);
#endif
void gf1_leave(void);
short gf1_enter(void);
void gf1_enter1(void);
int gf1_play_next_buffer(int voice, unsigned char RFAR *buff, unsigned long size);
void gf1_dig_set_vol(unsigned short voice, unsigned short vol);
void gf1_dig_set_pan(unsigned short voice, unsigned short pan);
int gf1_set_external_semaphore(void RFAR *addr);
int gf1_clear_external_semaphore(void RFAR *addr);
void gf1_midi_reset(int c);
int gf1_add_midi_recv_handler(int (RFAR *handler)());
int gf1_add_dma_handler(int (*handler)());
int gf1_add_voice_handler(int (*handler)(int));
int gf1_add_volume_handler(int (*handler)(int));
int gf1_add_timer_handler(int timer, int (RFAR *handler)(void));
void gf1_set_record_rate(unsigned long rate);
void gf1_create_patch(struct patch RFAR *patch);
int gf1_add_layer(struct patch RFAR *patch, int layer, char RFAR *wavemem);
void gf1_get_waveform_info(struct patch RFAR *patch, int layer, int waven,
struct wave_struct RFAR *wave);
void gf1_set_waveform_info(struct patch RFAR *patch, int layer, int waven,
struct wave_struct RFAR *wave);
void gf1_enable_line_in(void);
void gf1_disable_line_in(void);
void gf1_enable_mic_in(void);
void gf1_disable_mic_in(void);
void gf1_enable_output(void);
void gf1_disable_output(void);
void gf1_sound_volume(unsigned short voice, int volume,
unsigned long period /* us*10 */);
void gf1_sound_pan(unsigned short voice, unsigned short pan);
void gf1_sound_frequency(unsigned short voice, unsigned long freq);
void RFAR gf1_sound_stop(int voice);
void gf1_sound_mode(int voice, struct gf1_sound RFAR *sound,
unsigned char type);
int gf1_sound_start(unsigned short priority, struct gf1_sound RFAR *sound,
short volume, unsigned long period, short pan, unsigned long freq);
int gf1_sound_playing(int voice);
#endif