mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
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137 lines
3.1 KiB
C
137 lines
3.1 KiB
C
/*
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* midi.emscripten.c midi play for emscripten
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*
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* Copyright (C) 2019 <KichikuouChrome@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <emscripten.h>
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#include "portab.h"
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#include "midi.h"
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static int midi_initilize(char *pname, int subdev);
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static int midi_exit();
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static int midi_start(int no, int loop, char *data, int datalen);
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static int midi_stop();
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static int midi_pause(void);
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static int midi_unpause(void);
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static int midi_get_playing_info(midiplaystate *st);
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static int midi_getflag(int mode, int index);
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static int midi_setflag(int mode, int index, int val);
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static int midi_setvol(int vol);
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static int midi_getvol();
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static int midi_fadestart(int time, int volume, int stop);
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static boolean midi_fading();
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#define midi midi_emscripten
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mididevice_t midi = {
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midi_initilize,
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midi_exit,
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midi_start,
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midi_stop,
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midi_pause,
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midi_unpause,
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midi_get_playing_info,
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midi_getflag,
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midi_setflag,
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midi_setvol,
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midi_getvol,
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midi_fadestart,
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midi_fading
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};
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static int midino;
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static int midi_initilize(char *pname, int subdev) {
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return OK;
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}
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static int midi_exit() {
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midi_stop();
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return OK;
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}
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static int midi_start(int no, int loop, char *data, int datalen) {
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if (midino == no)
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return OK;
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EM_ASM_ARGS({ xsystem35.midiPlayer.play($0, $1, $2); }, loop, data, datalen);
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midino = no;
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return OK;
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}
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static int midi_stop() {
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EM_ASM( xsystem35.midiPlayer.stop(); );
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midino = 0;
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return OK;
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}
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static int midi_pause(void) {
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EM_ASM( xsystem35.midiPlayer.pause(); );
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return OK;
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}
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static int midi_unpause(void) {
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EM_ASM( xsystem35.midiPlayer.resume(); );
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return OK;
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}
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static int midi_get_playing_info(midiplaystate *st) {
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if (midino != 0) {
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int pos = EM_ASM_INT_V( return xsystem35.midiPlayer.getPosition(); );
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if (pos >= 0) {
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st->in_play = TRUE;
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st->play_no = midino;
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st->loc_ms = pos;
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return OK;
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}
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}
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st->in_play = FALSE;
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st->play_no = 0;
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st->loc_ms = 0;
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return OK;
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}
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static int midi_getflag(int mode, int index) {
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return 0;
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}
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static int midi_setflag(int mode, int index, int val) {
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return NG;
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}
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static int midi_setvol(int vol) {
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EM_ASM_ARGS({ xsystem35.midiPlayer.setVolume($0); }, vol);
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return OK;
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}
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static int midi_getvol() {
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return EM_ASM_INT_V( return xsystem35.midiPlayer.getVolume(); );
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}
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static int midi_fadestart(int time, int volume, int stop) {
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return EM_ASM_ARGS({ xsystem35.midiPlayer.fadeStart($0, $1, $2); },
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time, volume, stop);
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}
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static boolean midi_fading() {
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return EM_ASM_INT_V( return xsystem35.midiPlayer.isFading(); );
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}
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