Clazz.declarePackage("javajs.img");
Clazz.load(["javajs.img.ImageEncoder"], "javajs.img.CRCEncoder", ["java.util.zip.CRC32", "JU.AU"], function(){
var c$ = Clazz.decorateAsClass(function(){
this.startPos = 0;
this.bytePos = 0;
this.crc = null;
this.pngBytes = null;
this.dataLen = 0;
this.int2 = null;
this.int4 = null;
Clazz.instantialize(this, arguments);}, javajs.img, "CRCEncoder", javajs.img.ImageEncoder);
Clazz.prepareFields (c$, function(){
this.int2 =  Clazz.newByteArray (2, 0);
this.int4 =  Clazz.newByteArray (4, 0);
});
Clazz.makeConstructor(c$, 
function(){
Clazz.superConstructor (this, javajs.img.CRCEncoder, []);
this.pngBytes =  Clazz.newByteArray (250, 0);
this.crc =  new java.util.zip.CRC32();
});
Clazz.defineMethod(c$, "setData", 
function(b, pt){
this.pngBytes = b;
this.dataLen = b.length;
this.startPos = this.bytePos = pt;
}, "~A,~N");
Clazz.defineMethod(c$, "getBytes", 
function(){
return (this.dataLen == this.pngBytes.length ? this.pngBytes : JU.AU.arrayCopyByte(this.pngBytes, this.dataLen));
});
Clazz.defineMethod(c$, "writeCRC", 
function(){
this.crc.reset();
this.crc.update(this.pngBytes, this.startPos, this.bytePos - this.startPos);
this.writeInt4(this.crc.getValue());
});
Clazz.defineMethod(c$, "writeInt2", 
function(n){
this.int2[0] = ((n >> 8) & 0xff);
this.int2[1] = (n & 0xff);
this.writeBytes(this.int2);
}, "~N");
Clazz.defineMethod(c$, "writeInt4", 
function(n){
javajs.img.CRCEncoder.getInt4(n, this.int4);
this.writeBytes(this.int4);
}, "~N");
c$.getInt4 = Clazz.defineMethod(c$, "getInt4", 
function(n, int4){
int4[0] = ((n >> 24) & 0xff);
int4[1] = ((n >> 16) & 0xff);
int4[2] = ((n >> 8) & 0xff);
int4[3] = (n & 0xff);
}, "~N,~A");
Clazz.defineMethod(c$, "writeByte", 
function(b){
var temp =  Clazz.newByteArray(-1, [b]);
this.writeBytes(temp);
}, "~N");
Clazz.defineMethod(c$, "writeString", 
function(s){
this.writeBytes(s.getBytes());
}, "~S");
Clazz.defineMethod(c$, "writeBytes", 
function(data){
var newPos = this.bytePos + data.length;
this.dataLen = Math.max(this.dataLen, newPos);
if (newPos > this.pngBytes.length) this.pngBytes = JU.AU.arrayCopyByte(this.pngBytes, newPos + 16);
System.arraycopy(data, 0, this.pngBytes, this.bytePos, data.length);
this.bytePos = newPos;
}, "~A");
});
;//5.0.1-v2 Mon Mar 04 12:59:58 CST 2024
