Clazz.declarePackage ("JZ");
c$ = Clazz.decorateAsClass (function () {
this.dyn_tree = null;
this.max_code = 0;
this.stat_desc = null;
Clazz.instantialize (this, arguments);
}, JZ, "Tree");
c$.d_code = $_M(c$, "d_code",
function (dist) {
return ((dist) < 256 ? JZ.Tree._dist_code[dist] : JZ.Tree._dist_code[256 + ((dist) >>> 7)]);
}, "~N");
$_M(c$, "gen_bitlen",
function (s) {
var tree = this.dyn_tree;
var stree = this.stat_desc.static_tree;
var extra = this.stat_desc.extra_bits;
var base = this.stat_desc.extra_base;
var max_length = this.stat_desc.max_length;
var h;
var n;
var m;
var bits;
var xbits;
var f;
var overflow = 0;
for (bits = 0; bits <= 15; bits++) s.bl_count[bits] = 0;
tree[s.heap[s.heap_max] * 2 + 1] = 0;
for (h = s.heap_max + 1; h < 573; h++) {
n = s.heap[h];
bits = tree[tree[n * 2 + 1] * 2 + 1] + 1;
if (bits > max_length) {
bits = max_length;
overflow++;
}tree[n * 2 + 1] = bits;
if (n > this.max_code) continue;
s.bl_count[bits]++;
xbits = 0;
if (n >= base) xbits = extra[n - base];
f = tree[n * 2];
s.opt_len += f * (bits + xbits);
if (stree != null) s.static_len += f * (stree[n * 2 + 1] + xbits);
}
if (overflow == 0) return;
do {
bits = max_length - 1;
while (s.bl_count[bits] == 0) bits--;
s.bl_count[bits]--;
s.bl_count[bits + 1] += 2;
s.bl_count[max_length]--;
overflow -= 2;
} while (overflow > 0);
for (bits = max_length; bits != 0; bits--) {
n = s.bl_count[bits];
while (n != 0) {
m = s.heap[--h];
if (m > this.max_code) continue;
if (tree[m * 2 + 1] != bits) {
s.opt_len += (bits - tree[m * 2 + 1]) * tree[m * 2];
tree[m * 2 + 1] = bits;
}n--;
}
}
}, "JZ.Deflate");
$_M(c$, "build_tree",
function (s) {
var tree = this.dyn_tree;
var stree = this.stat_desc.static_tree;
var elems = this.stat_desc.elems;
var n;
var m;
var max_code = -1;
var node;
s.heap_len = 0;
s.heap_max = 573;
for (n = 0; n < elems; n++) {
if (tree[n * 2] != 0) {
s.heap[++s.heap_len] = max_code = n;
s.depth[n] = 0;
} else {
tree[n * 2 + 1] = 0;
}}
while (s.heap_len < 2) {
node = s.heap[++s.heap_len] = (max_code < 2 ? ++max_code : 0);
tree[node * 2] = 1;
s.depth[node] = 0;
s.opt_len--;
if (stree != null) s.static_len -= stree[node * 2 + 1];
}
this.max_code = max_code;
for (n = Clazz.doubleToInt (s.heap_len / 2); n >= 1; n--) s.pqdownheap (tree, n);
node = elems;
do {
n = s.heap[1];
s.heap[1] = s.heap[s.heap_len--];
s.pqdownheap (tree, 1);
m = s.heap[1];
s.heap[--s.heap_max] = n;
s.heap[--s.heap_max] = m;
tree[node * 2] = (tree[n * 2] + tree[m * 2]);
s.depth[node] = (Math.max (s.depth[n], s.depth[m]) + 1);
tree[n * 2 + 1] = tree[m * 2 + 1] = node;
s.heap[1] = node++;
s.pqdownheap (tree, 1);
} while (s.heap_len >= 2);
s.heap[--s.heap_max] = s.heap[1];
this.gen_bitlen (s);
JZ.Tree.gen_codes (tree, max_code, s.bl_count);
}, "JZ.Deflate");
c$.gen_codes = $_M(c$, "gen_codes",
function (tree, max_code, bl_count) {
var code = 0;
var bits;
var n;
JZ.Tree.next_code[0] = 0;
for (bits = 1; bits <= 15; bits++) {
JZ.Tree.next_code[bits] = code = ((code + bl_count[bits - 1]) << 1);
}
for (n = 0; n <= max_code; n++) {
var len = tree[n * 2 + 1];
if (len == 0) continue;
tree[n * 2] = (JZ.Tree.bi_reverse (JZ.Tree.next_code[len]++, len));
}
}, "~A,~N,~A");
c$.bi_reverse = $_M(c$, "bi_reverse",
function (code, len) {
var res = 0;
do {
res |= code & 1;
code >>>= 1;
res <<= 1;
} while (--len > 0);
return res >>> 1;
}, "~N,~N");
Clazz.defineStatics (c$,
"MAX_BITS", 15,
"LITERALS", 256,
"LENGTH_CODES", 29,
"L_CODES", (286),
"HEAP_SIZE", (573),
"MAX_BL_BITS", 7,
"END_BLOCK", 256,
"REP_3_6", 16,
"REPZ_3_10", 17,
"REPZ_11_138", 18,
"extra_lbits", [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0],
"extra_dbits", [0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13],
"extra_blbits", [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 3, 7],
"bl_order", [16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15],
"Buf_size", 16,
"DIST_CODE_LEN", 512,
"_dist_code", [0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17, 18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29],
"_length_code", [0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28],
"base_length", [0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 0],
"base_dist", [0, 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576],
"next_code", Clazz.newShortArray (16, 0));