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mp3 decoding but slow

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This commit is contained in:
minjaesong
2023-01-14 16:45:33 +09:00
parent f23dedc245
commit 994db188c2
13 changed files with 672 additions and 211 deletions
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54
assets/disk0/tvdos/bin/command.js
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@@ -348,6 +348,13 @@ shell.resolvePathInput = function(input) {
return { string: pathstr, pwd: newPwd, drive: driveLetter, full: `${driveLetter}:${pathstr}` }
}
shell.isValidDriveLetter = function(l) {
if (typeof l === 'string' || l instanceof String) {
let lc = l.charCodeAt(0)
return (l == '$' || 65 <= lc && lc <= 90 || 97 <= lc && lc <= 122)
}
else return false
}
shell.coreutils = {
/* Args follow this format:
* <command-name> <1st arg> <2nd arg> ...
@@ -682,30 +689,39 @@ shell.execute = function(line) {
// search through PATH for execution
var fileExists = false
var searchDir = (cmd.startsWith("/")) ? [""] : ["/"+shell_pwd.join("/")].concat(_TVDOS.getPath())
var searchFile;
var searchPath = "";
var pathExt = [] // it seems Nashorn does not like 'let' too much? this line gets ignored sometimes
// fill pathExt using %PATHEXT% but also capitalise them
if (cmd.split(".")[1] === undefined)
_TVDOS.variables.PATHEXT.split(';').forEach(function(it) { pathExt.push(it); pathExt.push(it.toUpperCase()); })
else
pathExt.push("") // final empty extension
// if the file is absolute path:
if (shell.isValidDriveLetter(cmd[0]) && cmd[1] == ':') {
searchFile = files.open(cmd)
searchPath = trimStartRevSlash(searchFile.path)
fileExists = searchFile.exists
}
// else
else {
var searchDir = (cmd.startsWith("/")) ? [""] : ["/"+shell_pwd.join("/")].concat(_TVDOS.getPath())
let searchPath = ""
let searchFile = 0
var pathExt = [] // it seems Nashorn does not like 'let' too much? this line gets ignored sometimes
// fill pathExt using %PATHEXT% but also capitalise them
if (cmd.split(".")[1] === undefined)
_TVDOS.variables.PATHEXT.split(';').forEach(function(it) { pathExt.push(it); pathExt.push(it.toUpperCase()); })
else
pathExt.push("") // final empty extension
searchLoop:
for (var i = 0; i < searchDir.length; i++) {
for (var j = 0; j < pathExt.length; j++) {
let search = searchDir[i]; if (!search.endsWith('\\')) search += '\\'
searchPath = trimStartRevSlash(search + cmd + pathExt[j])
searchLoop:
for (var i = 0; i < searchDir.length; i++) {
for (var j = 0; j < pathExt.length; j++) {
let search = searchDir[i]; if (!search.endsWith('\\')) search += '\\'
searchPath = trimStartRevSlash(search + cmd + pathExt[j])
// debugprintln("[shell.execute] file search path: "+searchPath)
// debugprintln("[shell.execute] file search path: "+searchPath)
searchFile = files.open(`${CURRENT_DRIVE}:\\${searchPath}`)
if (searchFile.exists) {
fileExists = true
break searchLoop
searchFile = files.open(`${CURRENT_DRIVE}:\\${searchPath}`)
if (searchFile.exists) {
fileExists = true
break searchLoop
}
}
}
}