mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
synced 2026-09-29 18:28:19 +03:00
Emscripten PCM backend
This commit is contained in:
kichikuou
+1
-1
@@ -25,6 +25,6 @@ src/xsystem35: src src/Makefile
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ln -sf src/xsystem35 xsystem35.bc
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src/Makefile:
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emconfigure ./configure --disable-shared --enable-gtk=no --enable-sdl --enable-music-server=no --enable-cdrom=emscripten CFLAGS='-s USE_ZLIB=1' FT2_CONFIG=tools/freetype-config
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emconfigure ./configure --disable-shared --enable-gtk=no --enable-sdl --enable-cdrom=emscripten --enable-midi=no CFLAGS='-s USE_ZLIB=1' FT2_CONFIG=tools/freetype-config
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.PHONY: src
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@@ -1 +1 @@
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-s EMTERPRETIFY_WHITELIST='["_ags_eCopyArea", "_ags_fadeIn", "_ags_fadeOut", "_ags_fader", "_ags_whiteIn", "_ags_whiteOut", "_checkMessage", "_check_command", "_commandCD", "_commandCE", "_commandH", "_commandHH", "_commandIK", "_commandMP", "_commandPF", "_commandPW", "_commandVA", "_commandY", "_commandZT20", "_commandZT21", "_commands2F21", "_commands2F7C", "_commands2F7D", "_commands2F7E", "_commands2F7F", "_eCopyArea1", "_eCopyArea11", "_eCopyArea12", "_eCopyArea13", "_eCopyArea14", "_eCopyArea15", "_eCopyArea16", "_eCopyArea17", "_eCopyArea18", "_eCopyArea19", "_eCopyArea2", "_eCopyArea20", "_eCopyArea21", "_eCopyArea22", "_eCopyArea23", "_eCopyArea24", "_eCopyArea25", "_eCopyArea26", "_eCopyArea3", "_eCopyArea33", "_eCopyArea34", "_eCopyArea39", "_eCopyArea4", "_eCopyArea40", "_eCopyArea48", "_eCopyArea49", "_eCopyArea5", "_eCopyArea5sp", "_eCopyArea6", "_eCopyArea7", "_eCopyArea8", "_eCopyArea9", "_main", "_mainloop", "_msg_putMessage", "_nact_main", "_sdl_keywait", "_sdl_sleep", "_sel_select", "_sys_addMsg", "_sys_hit_any_key", "_sys_key_releasewait"]'
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-s EMTERPRETIFY_WHITELIST='["_ags_eCopyArea", "_ags_fadeIn", "_ags_fadeOut", "_ags_fader", "_ags_whiteIn", "_ags_whiteOut", "_checkMessage", "_check_command", "_commandCD", "_commandCE", "_commandH", "_commandHH", "_commandIK", "_commandMP", "_commandPF", "_commandPW", "_commandSM", "_commandSP", "_commandSQ", "_commandVA", "_commandY", "_commandZT20", "_commandZT21", "_commands2F1E", "_commands2F21", "_commands2F7C", "_commands2F7D", "_commands2F7E", "_commands2F7F", "_eCopyArea1", "_eCopyArea11", "_eCopyArea12", "_eCopyArea13", "_eCopyArea14", "_eCopyArea15", "_eCopyArea16", "_eCopyArea17", "_eCopyArea18", "_eCopyArea19", "_eCopyArea2", "_eCopyArea20", "_eCopyArea21", "_eCopyArea22", "_eCopyArea23", "_eCopyArea24", "_eCopyArea25", "_eCopyArea26", "_eCopyArea3", "_eCopyArea33", "_eCopyArea34", "_eCopyArea39", "_eCopyArea4", "_eCopyArea40", "_eCopyArea48", "_eCopyArea49", "_eCopyArea5", "_eCopyArea5sp", "_eCopyArea6", "_eCopyArea7", "_eCopyArea8", "_eCopyArea9", "_main", "_mainloop", "_msg_putMessage", "_mus_pcm_load", "_mus_pcm_mix", "_mus_pcm_start", "_muspcm_load_mixlr", "_muspcm_load_no", "_nact_main", "_sdl_keywait", "_sdl_sleep", "_sel_select", "_sys_addMsg", "_sys_hit_any_key", "_sys_key_releasewait"]'
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@@ -24,8 +24,6 @@
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#ifndef __MUSIC_PCM_H__
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#define __MUSIC_PCM_H__
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#include <SDL_mixer.h>
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extern int muspcm_init();
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extern int muspcm_exit();
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extern int muspcm_load_no(int slot, int no);
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@@ -0,0 +1,155 @@
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/*
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* pcm.emscripten.c Emscripten PCM backend
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*
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* Copyright (C) 2017 <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 "system.h"
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#include "ald_manager.h"
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#include "dri.h"
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#include "music_pcm.h"
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#include "music_private.h"
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#include "nact.h"
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int muspcm_init() {
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prv.pcm_valid = TRUE;
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return OK;
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}
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int muspcm_exit() {
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return OK;
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}
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// 番号指定のPCMファイル読み込み
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int muspcm_load_no(int slot, int no) {
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dridata *dfile = ald_getdata(DRIFILE_WAVE, no -1);
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if (dfile == NULL) {
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WARNING("DRIFILE_WAVE fail to open %d\n", no -1);
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return NG;
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}
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EM_ASM_({
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xsystem35.waitPromise(function(){
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return xsystem35.audio.pcm_load($0, $1, $2);
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});
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}, slot, dfile->data, dfile->size);
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#ifdef EMTERPRETIFY_ADVISE
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emscripten_sleep(0);
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#endif
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ald_freedata(dfile);
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return OK;
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}
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int muspcm_load_mixlr(int slot, int noL, int noR) {
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dridata *dfileL = ald_getdata(DRIFILE_WAVE, noL -1);
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if (dfileL == NULL) {
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WARNING("DRIFILE_WAVE fail to open %d\n", noL -1);
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return NG;
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}
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dridata *dfileR = ald_getdata(DRIFILE_WAVE, noR -1);
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if (dfileR == NULL) {
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ald_freedata(dfileL);
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WARNING("DRIFILE_WAVE fail to open %d\n", noR -1);
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return NG;
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}
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EM_ASM_({
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xsystem35.waitPromise(function() {
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return xsystem35.audio.pcm_load_mixlr($0, $1, $2, $3, $4);
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});
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}, slot, dfileL->data, dfileL->size, dfileR->data, dfileR->size);
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#ifdef EMTERPRETIFY_ADVISE
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emscripten_sleep(0);
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#endif
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ald_freedata(dfileL);
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ald_freedata(dfileR);
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return OK;
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}
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// PCMデータを再生
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int muspcm_start(int slot, int loop) {
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return EM_ASM_INT({
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return xsystem35.audio.pcm_start($0, $1);
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}, slot, loop) ? OK : NG;
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}
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// PCMデータの再生停止
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int muspcm_stop(int slot) {
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return EM_ASM_INT({
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return xsystem35.audio.pcm_stop($0);
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}, slot) ? OK : NG;
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}
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// 指定時間のフェードアウトの後に再生停止
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int muspcm_fadeout(int slot, int msec) {
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return EM_ASM_INT({
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return xsystem35.audio.pcm_fadeout($0, $1);
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}, slot, msec) ? OK : NG;
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}
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// PCMデータ再生一時停止
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int muspcm_pause(int slot) {
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printf("%s not implemented\n", __func__);
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return NG;
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}
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// PCMデータ再生一時停止解除
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int muspcm_unpause(int slot) {
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printf("%s not implemented\n", __func__);
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return NG;
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}
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// 現在の再生位置を返す
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int muspcm_getpos(int slot) {
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return EM_ASM_INT({
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return xsystem35.audio.pcm_getpos($0);
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}, slot) ? OK : NG;
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}
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// PCMオブジェクトに対してボリュームをセット
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int muspcm_setvol(int dev, int slot, int lv) {
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return EM_ASM_INT({
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return xsystem35.audio.pcm_setvol($0, $1);
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}, slot, lv) ? OK : NG;
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}
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// PCMデータの長さを取得
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int muspcm_getwavelen(int slot) {
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int len = EM_ASM_INT({
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return xsystem35.audio.pcm_getwavelen($0);
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}, slot);
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return len > 65535 ? 65535 : len;
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}
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// 指定のスロットが現在演奏中かどうかを取得
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boolean muspcm_isplaying(int slot) {
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return EM_ASM_INT({
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return xsystem35.audio.pcm_isplaying($0);
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}, slot) ? TRUE : FALSE;
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}
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int musfade_setvolval_all(int val) {
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EM_ASM_(xsystem35.audio.setVolume($0), val);
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}
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@@ -20,6 +20,10 @@ declare namespace FS {
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function writeFile(path: string, data: ArrayBufferView | string, opts?: {encoding?: string; flags?: string; canOwn?: boolean}): void;
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}
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declare namespace EmterpreterAsync {
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function handle(asyncOp: (resume:()=>void) => void): void;
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}
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namespace xsystem35 {
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export const Font = { url: 'fonts/MTLc3m.ttf', fname: 'MTLc3m.ttf'};
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export const xsys35rc = [
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@@ -29,6 +33,12 @@ namespace xsystem35 {
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].join('\n');
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export var cdPlayer: CDPlayer;
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export var shell: System35Shell;
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export var audio: AudioManager;
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export function waitPromise(p: ()=>Promise<any>) {
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EmterpreterAsync.handle(function(resume) {
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p().then(() => {resume()}, (reason) => { console.log(reason); resume() });
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});
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}
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}
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class System35Shell {
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@@ -72,6 +82,7 @@ class System35Shell {
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this.antialiasCheckbox = <HTMLInputElement>$('#antialias');
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this.antialiasCheckbox.addEventListener('change', this.antialiasChanged.bind(this));
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this.antialiasCheckbox.checked = localStorage.getItem('antialias') != 'false';
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xsystem35.audio = new AudioManager();
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}
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run() {
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@@ -286,4 +297,211 @@ class VolumeControl {
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}
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}
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abstract class PCMSound {
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protected context: AudioContext;
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protected gain: GainNode;
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protected duration_: number;
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protected startTime: number;
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constructor(protected dst: AudioNode) {
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this.context = dst.context;
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this.gain = this.context.createGain();
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this.gain.connect(dst);
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}
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abstract start(loop: number): void;
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abstract stop(): void;
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setGain(gain: number) {
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this.gain.gain.value = gain;
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}
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fadeout(msec: number) {
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this.gain.gain.linearRampToValueAtTime(0, this.context.currentTime + msec / 1000);
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}
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getPosition(): number {
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if (!this.startTime)
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return 0;
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return this.context.currentTime - this.startTime;
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}
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isPlaying(): boolean {
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return !!this.startTime;
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}
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get duration(): number {
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return this.duration_;
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}
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}
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class PCMSoundSimple extends PCMSound {
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private node: AudioBufferSourceNode;
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constructor(dst: AudioNode, buf: AudioBuffer) {
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super(dst);
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this.node = this.context.createBufferSource();
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this.node.buffer = buf;
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this.node.connect(this.gain);
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this.node.onended = this.onended.bind(this);
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this.duration_ = buf.duration;
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}
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start(loop: number) {
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if (loop == 0)
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this.node.loop = true;
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else if (loop != 1)
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console.warn('Unsupported PCM loop count ' + loop);
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this.node.start();
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this.startTime = this.context.currentTime;
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}
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stop() {
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if (this.startTime) {
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this.node.stop();
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this.startTime = null;
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}
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}
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private onended() {
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this.startTime = null;
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}
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}
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class PCMSoundMixLR extends PCMSound {
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private lsrc: AudioBufferSourceNode;
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private rsrc: AudioBufferSourceNode;
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private endCount = 0;
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constructor(dst: AudioNode, lbuf: AudioBuffer, rbuf: AudioBuffer) {
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super(dst);
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this.lsrc = this.context.createBufferSource();
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this.rsrc = this.context.createBufferSource();
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this.lsrc.buffer = lbuf;
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this.rsrc.buffer = rbuf;
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var merger = this.context.createChannelMerger(2);
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merger.connect(this.gain);
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this.lsrc.connect(merger, 0, 0);
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this.rsrc.connect(merger, 0, 1);
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this.lsrc.onended = this.rsrc.onended = this.onended.bind(this);
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this.duration_ = Math.max(lbuf.duration, rbuf.duration);
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}
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start(loop: number) {
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if (loop != 1)
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console.warn('PCMSoundMixLR: loop is not supported ' + loop);
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this.lsrc.start();
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this.rsrc.start();
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this.startTime = this.context.currentTime;
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}
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stop() {
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if (this.startTime) {
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this.lsrc.stop();
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this.rsrc.stop();
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this.startTime = null;
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}
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}
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private onended() {
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this.endCount++;
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if (this.endCount == 2)
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this.startTime = null;
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}
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}
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declare var webkitAudioContext:any;
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class AudioManager {
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private context: AudioContext;
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private masterGain: GainNode;
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private slots: PCMSound[];
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private isSafari: boolean;
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constructor() {
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if (typeof(AudioContext) !== 'undefined') {
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this.context = new AudioContext();
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} else if (typeof(webkitAudioContext) !== 'undefined') {
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this.context = new webkitAudioContext();
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this.isSafari = true;
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}
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this.masterGain = this.context.createGain();
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this.masterGain.connect(this.context.destination);
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this.slots = [];
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}
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private load(ptr: number, size: number): Promise<AudioBuffer> {
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var buf = Module.HEAPU8.buffer.slice(ptr, ptr + size);
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if (this.isSafari) {
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return new Promise((resolve, reject) => {
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this.context.decodeAudioData(buf, resolve, reject);
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});
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}
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return this.context.decodeAudioData(buf);
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}
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pcm_load(slot: number, ptr: number, size: number): Promise<any> {
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this.pcm_stop(slot);
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var start = performance.now();
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return this.load(ptr, size).then((audioBuf) => {
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console.log('pcm_load: ' + (performance.now() - start) + ' ms');
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this.slots[slot] = new PCMSoundSimple(this.masterGain, audioBuf);
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});
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}
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pcm_load_mixlr(slot: number, lptr: number, lsize: number, rptr: number, rsize: number): Promise<any> {
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this.pcm_stop(slot);
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var start = performance.now();
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return Promise.all([this.load(lptr, lsize), this.load(rptr, rsize)]).then((bufs) => {
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console.log('pcm_load_mixlr: ' + (performance.now() - start) + ' ms');
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this.slots[slot] = new PCMSoundMixLR(this.masterGain, bufs[0], bufs[1]);
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});
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}
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pcm_start(slot: number, loop: number): number {
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if (this.slots[slot]) {
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this.slots[slot].start(loop);
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return 1;
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}
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return 0;
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}
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pcm_stop(slot: number): number {
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if (!this.slots[slot])
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return 0;
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this.slots[slot].stop();
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this.slots[slot] = null;
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return 1;
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}
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pcm_fadeout(slot: number, msec: number): number {
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if (!this.slots[slot])
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return 0;
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this.slots[slot].fadeout(msec);
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return 1;
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}
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pcm_getpos(slot: number): number {
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if (!this.slots[slot])
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return 0;
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return this.slots[slot].getPosition() * 1000;
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}
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pcm_setvol(slot: number, vol: number): number {
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if (!this.slots[slot])
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return 0;
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this.slots[slot].setGain(vol / 100);
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return 1;
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}
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pcm_getwavelen(slot: number): number {
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if (!this.slots[slot])
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return 0;
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return this.slots[slot].duration * 1000;
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}
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pcm_isplaying(slot: number): number {
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if (!this.slots[slot])
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return 0;
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return this.slots[slot].isPlaying() ? 1 : 0;
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}
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setVolume(vol: number) {
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this.masterGain.gain.value = vol / 100;
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}
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}
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xsystem35.shell = new System35Shell();
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@@ -1,7 +1,7 @@
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{
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"compilerOptions": {
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"module": "commonjs",
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"target": "es5",
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"target": "es6",
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"outDir": "../../docs",
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"noImplicitAny": true,
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"sourceMap": false
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