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reading image files in graphics adapter

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minjaesong
2022-04-06 17:09:27 +09:00
parent f992713e85
commit 4c19e19b8a
17 changed files with 1838 additions and 5 deletions
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24
assets/disk0/tvdos/TVDOS.SYS
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@@ -94,6 +94,18 @@ filesystem.open = (driveLetter, path, operationMode) => {
com.sendMessage(port[0], "OPEN"+mode+'"'+path+'",'+port[1]);
return com.getStatusCode(port[0]);
};
filesystem.getFileLen = (driveLetter) => {
var port = filesystem._toPorts(driveLetter);
com.sendMessage(port[0], "GETLEN");
var response = com.getStatusCode(port[0]);
if (135 == response) {
throw Error("File not opened");
}
if (response < 0 || response >= 128) {
throw Error("Reading a file failed with "+response);
}
return Number(com.pullMessage(port[0]));
};
// @return the entire contents of the file in String
filesystem.readAll = (driveLetter) => {
var port = filesystem._toPorts(driveLetter);
@@ -107,6 +119,14 @@ filesystem.readAll = (driveLetter) => {
}
return com.pullMessage(port[0]);
};
filesystem.readAllBytes = (driveLetter) => {
var str = filesystem.readAll(driveLetter);
var bytes = new Uint8Array(str.length);
for (let i = 0; i < str.length; i++) {
bytes[i] = str.charCodeAt(i);
}
return bytes;
};
filesystem.write = (driveLetter, string) => {
var port = filesystem._toPorts(driveLetter);
com.sendMessage(port[0], "WRITE"+string.length);
@@ -120,6 +140,10 @@ filesystem.write = (driveLetter, string) => {
com.sendMessage(port[0], string);
filesystem._flush(port[0]); filesystem._close(port[0]);
};
filesystem.writeBytes = (driveLetter, bytes) => {
var string = String.fromCharCode(...bytes);
filesystem.write(driveLetter, string);
};
filesystem.isDirectory = (driveLetter) => {
var port = filesystem._toPorts(driveLetter);
com.sendMessage(port[0], "LISTFILES");