253 lines
9.1 KiB
C
253 lines
9.1 KiB
C
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/*
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* internal_midi.h -- Midi Wavetable Processing library
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*
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* Copyright (C) WildMIDI Developers 2001-2016
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*
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* This file is part of WildMIDI.
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*
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* WildMIDI is free software: you can redistribute and/or modify the player
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* under the terms of the GNU General Public License and you can redistribute
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* and/or modify the library under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, either version 3 of
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* the licenses, or(at your option) any later version.
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*
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* WildMIDI is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License and
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* the GNU Lesser 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 and the
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* GNU Lesser General Public License along with WildMIDI. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef __INTERNAL_MIDI_H
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#define __INTERNAL_MIDI_H
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struct _channel {
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uint8_t bank;
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struct _patch *patch;
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uint8_t hold;
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uint8_t volume;
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uint8_t pressure;
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uint8_t expression;
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int8_t balance;
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int8_t pan;
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int16_t left_adjust;
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int16_t right_adjust;
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int16_t pitch;
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int16_t pitch_range;
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int32_t pitch_adjust;
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uint16_t reg_data;
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uint8_t reg_non;
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uint8_t isdrum;
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};
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struct _event_data {
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uint8_t channel;
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union Data {
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uint32_t value;
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char * string;
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} data;
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};
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struct _note {
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uint16_t noteid;
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uint8_t velocity;
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struct _patch *patch;
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struct _sample *sample;
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uint32_t sample_pos;
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uint32_t sample_inc;
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int32_t env_inc;
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uint8_t env;
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int32_t env_level;
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uint8_t modes;
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uint8_t hold;
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uint8_t active;
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struct _note *replay;
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struct _note *next;
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uint32_t left_mix_volume;
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uint32_t right_mix_volume;
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uint8_t is_off;
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uint8_t ignore_chan_events;
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};
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struct _mdi;
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enum _event_type {
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ev_null = -1,
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ev_midi_divisions,
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ev_note_off,
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ev_note_on,
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ev_aftertouch,
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ev_control_bank_select,
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ev_control_data_entry_course,
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ev_control_channel_volume,
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ev_control_channel_balance,
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ev_control_channel_pan,
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ev_control_channel_expression,
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ev_control_data_entry_fine,
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ev_control_channel_hold,
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ev_control_data_increment,
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ev_control_data_decrement,
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ev_control_non_registered_param_fine,
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ev_control_non_registered_param_course,
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ev_control_registered_param_fine,
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ev_control_registered_param_course,
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ev_control_channel_sound_off,
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ev_control_channel_controllers_off,
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ev_control_channel_notes_off,
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ev_control_dummy,
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ev_patch,
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ev_channel_pressure,
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ev_pitch,
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ev_sysex_roland_drum_track,
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ev_sysex_gm_reset,
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ev_sysex_roland_reset,
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ev_sysex_yamaha_reset,
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ev_meta_endoftrack,
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ev_meta_tempo,
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ev_meta_timesignature,
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ev_meta_keysignature,
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ev_meta_sequenceno,
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ev_meta_channelprefix,
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ev_meta_portprefix,
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ev_meta_smpteoffset,
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ev_meta_text,
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ev_meta_copyright,
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ev_meta_trackname,
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ev_meta_instrumentname,
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ev_meta_lyric,
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ev_meta_marker,
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ev_meta_cuepoint
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};
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struct _event {
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enum _event_type evtype;
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void (*do_event)(struct _mdi *mdi, struct _event_data *data);
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struct _event_data event_data;
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uint32_t samples_to_next;
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uint32_t samples_to_next_fixed;
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};
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struct _mdi {
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int lock;
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uint32_t samples_to_mix;
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struct _event *events;
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struct _event *current_event;
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uint32_t event_count;
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uint32_t events_size; /* try to stay optimally ahead to prevent reallocs */
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struct _WM_Info extra_info;
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struct _WM_Info *tmp_info;
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uint16_t midi_master_vol;
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struct _channel channel[16];
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struct _note *note;
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struct _note note_table[2][16][128];
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struct _patch **patches;
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uint32_t patch_count;
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int16_t amp;
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int32_t *mix_buffer;
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uint32_t mix_buffer_size;
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struct _rvb *reverb;
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int32_t dyn_vol_peak;
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double dyn_vol_adjust;
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double dyn_vol;
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double dyn_vol_to_reach;
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uint8_t is_type2;
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char *lyric;
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};
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extern int16_t _WM_lin_volume[];
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extern uint32_t _WM_freq_table[];
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/* ===================== */
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/*
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* All "do" functions need to be "extern" for playback
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*/
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extern void _WM_do_midi_divisions(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_note_off(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_note_on(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_aftertouch(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_bank_select(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_data_entry_course(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_channel_volume(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_channel_balance(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_channel_pan(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_channel_expression(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_data_entry_fine(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_channel_hold(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_data_increment(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_data_decrement(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_non_registered_param_fine(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_non_registered_param_course(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_registered_param_fine(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_registered_param_course(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_channel_sound_off(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_channel_controllers_off(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_channel_notes_off(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_control_dummy(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_patch(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_channel_pressure(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_pitch(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_sysex_roland_drum_track(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_sysex_gm_reset(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_sysex_roland_reset(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_sysex_yamaha_reset(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_endoftrack(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_tempo(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_timesignature(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_keysignature(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_sequenceno(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_channelprefix(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_portprefix(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_smpteoffset(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_text(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_copyright(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_trackname(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_instrumentname(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_lyric(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_marker(struct _mdi *mdi, struct _event_data *data);
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extern void _WM_do_meta_cuepoint(struct _mdi *mdi, struct _event_data *data);
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/*
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* We need to expose these fuctions for use on some or the parsers due to some
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* formats not being able to trigger these events via _WM_Setup_Midi_Event.
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*/
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extern int _WM_midi_setup_noteoff(struct _mdi *mdi, uint8_t channel, uint8_t note, uint8_t velocity);
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extern int _WM_midi_setup_endoftrack(struct _mdi *mdi);
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extern int _WM_midi_setup_tempo(struct _mdi *mdi, uint32_t setting);
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/* ===================== */
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/*
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* Only non-standard midi event or non-track event setup functions need to be here
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*/
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extern int _WM_midi_setup_divisions(struct _mdi *mdi, uint32_t divisions);
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/* ===================== */
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/*
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* All other declarations
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*/
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extern struct _mdi * _WM_initMDI(void);
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extern void _WM_freeMDI(struct _mdi *mdi);
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extern uint32_t _WM_SetupMidiEvent(struct _mdi *mdi, const uint8_t *event_data, uint32_t inlen, uint8_t running_event);
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extern void _WM_ResetToStart(struct _mdi *mdi);
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extern void _WM_do_pan_adjust(struct _mdi *mdi, uint8_t ch);
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extern void _WM_do_note_off_extra(struct _note *nte);
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/* extern void _WM_DynamicVolumeAdjust(struct _mdi *mdi, int32_t *tmp_buffer, uint32_t buffer_used);*/
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extern void _WM_AdjustChannelVolumes(struct _mdi *mdi, uint8_t ch);
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extern float _WM_GetSamplesPerTick(uint32_t divisions, uint32_t tempo);
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#endif /* __INTERNAL_MIDI_H */
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