internal int inflateInit(ZStream z, int w)
{
z.msg = null;
blocks = null;
// handle undocumented nowrap option (no zlib header or check)
nowrap = 0;
if (w < 0)
{
w = -w;
nowrap = 1;
}
// set window size
if (w < 8 || w > 15)
{
inflateEnd(z);
return(Z_STREAM_ERROR);
}
wbits = w;
z.istate.blocks = new InfBlocks(z, z.istate.nowrap != 0?null:this, 1 << w);
// reset state
inflateReset(z);
return(Z_OK);
}
internal int inflateEnd(ZStream z)
{
if (blocks != null)
blocks.free(z);
blocks = null;
// ZFREE(z, z->state);
return Z_OK;
}
internal int inflateEnd(ZStream z)
{
if (this.blocks != null)
{
this.blocks.free(z);
}
this.blocks = null;
return(0);
}
internal int inflateEnd(ZStream z)
{
if (blocks != null)
{
blocks.free(z);
}
blocks = null;
// ZFREE(z, z->state);
return(Z_OK);
}
internal int inflateInit(ZStream z, int w)
{
z.msg = null;
this.blocks = null;
this.nowrap = 0;
if (w < 0)
{
w = -w;
this.nowrap = 1;
}
if (w >= 8 && w <= 15)
{
this.wbits = w;
z.istate.blocks = new InfBlocks(z, (z.istate.nowrap != 0) ? null : this, 1 << w);
this.inflateReset(z);
return(0);
}
this.inflateEnd(z);
return(-2);
}
internal int proc(InfBlocks s, ZStream z, int r)
{
int j; // temporary storage
//int[] t; // temporary pointer
int tindex; // temporary pointer
int e; // extra bits or operation
int b = 0; // bit buffer
int k = 0; // bits in bit buffer
int p = 0; // input data pointer
int n; // bytes available there
int q; // output window write pointer
int m; // bytes to end of window or read pointer
int f; // pointer to copy strings from
// copy input/output information to locals (UPDATE macro restores)
p = z.next_in_index; n = z.avail_in; b = s.bitb; k = s.bitk;
q = s.write; m = q < s.read ? s.read - q - 1 : s.end - q;
// process input and output based on current state
while (true)
{
switch (mode)
{
// waiting for "i:"=input, "o:"=output, "x:"=nothing
case START: // x: set up for LEN
if (m >= 258 && n >= 10)
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
r = inflate_fast(lbits, dbits, ltree, ltree_index, dtree, dtree_index, s, z);
p = z.next_in_index; n = z.avail_in; b = s.bitb; k = s.bitk;
q = s.write; m = q < s.read ? s.read - q - 1 : s.end - q;
if (r != Z_OK)
{
mode = r == Z_STREAM_END ? WASH : BADCODE;
break;
}
}
need = lbits;
tree = ltree;
tree_index = ltree_index;
mode = LEN;
goto case LEN;
case LEN: // i: get length/literal/eob next
j = need;
while (k < (j))
{
if (n != 0)
r = Z_OK;
else
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
}
n--;
b |= (z.next_in[p++] & 0xff) << k;
k += 8;
}
tindex = (tree_index + (b & inflate_mask[j])) * 3;
b = SupportClass.URShift(b, (tree[tindex + 1]));
k -= (tree[tindex + 1]);
e = tree[tindex];
if (e == 0)
{
// literal
lit = tree[tindex + 2];
mode = LIT;
break;
}
if ((e & 16) != 0)
{
// length
get_Renamed = e & 15;
len = tree[tindex + 2];
mode = LENEXT;
break;
}
if ((e & 64) == 0)
{
// next table
need = e;
tree_index = tindex / 3 + tree[tindex + 2];
break;
}
if ((e & 32) != 0)
{
// end of block
mode = WASH;
break;
}
mode = BADCODE; // invalid code
z.msg = "invalid literal/length code";
r = Z_DATA_ERROR;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
case LENEXT: // i: getting length extra (have base)
j = get_Renamed;
while (k < (j))
{
if (n != 0)
r = Z_OK;
else
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
}
n--; b |= (z.next_in[p++] & 0xff) << k;
k += 8;
}
len += (b & inflate_mask[j]);
b >>= j;
k -= j;
need = dbits;
tree = dtree;
tree_index = dtree_index;
mode = DIST;
goto case DIST;
case DIST: // i: get distance next
j = need;
while (k < (j))
{
if (n != 0)
r = Z_OK;
else
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
}
n--; b |= (z.next_in[p++] & 0xff) << k;
k += 8;
}
tindex = (tree_index + (b & inflate_mask[j])) * 3;
b >>= tree[tindex + 1];
k -= tree[tindex + 1];
e = (tree[tindex]);
if ((e & 16) != 0)
{
// distance
get_Renamed = e & 15;
dist = tree[tindex + 2];
mode = DISTEXT;
break;
}
if ((e & 64) == 0)
{
// next table
need = e;
tree_index = tindex / 3 + tree[tindex + 2];
break;
}
mode = BADCODE; // invalid code
z.msg = "invalid distance code";
r = Z_DATA_ERROR;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
case DISTEXT: // i: getting distance extra
j = get_Renamed;
while (k < (j))
{
if (n != 0)
r = Z_OK;
else
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
}
n--; b |= (z.next_in[p++] & 0xff) << k;
k += 8;
}
dist += (b & inflate_mask[j]);
b >>= j;
k -= j;
mode = COPY;
goto case COPY;
case COPY: // o: copying bytes in window, waiting for space
f = q - dist;
while (f < 0)
{
// modulo window size-"while" instead
f += s.end; // of "if" handles invalid distances
}
while (len != 0)
{
if (m == 0)
{
if (q == s.end && s.read != 0)
{
q = 0; m = q < s.read ? s.read - q - 1 : s.end - q;
}
if (m == 0)
{
s.write = q; r = s.inflate_flush(z, r);
q = s.write; m = q < s.read ? s.read - q - 1 : s.end - q;
if (q == s.end && s.read != 0)
{
q = 0; m = q < s.read ? s.read - q - 1 : s.end - q;
}
if (m == 0)
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
}
}
}
s.window[q++] = s.window[f++]; m--;
if (f == s.end)
f = 0;
len--;
}
mode = START;
break;
case LIT: // o: got literal, waiting for output space
if (m == 0)
{
if (q == s.end && s.read != 0)
{
q = 0; m = q < s.read ? s.read - q - 1 : s.end - q;
}
if (m == 0)
{
s.write = q; r = s.inflate_flush(z, r);
q = s.write; m = q < s.read ? s.read - q - 1 : s.end - q;
if (q == s.end && s.read != 0)
{
q = 0; m = q < s.read ? s.read - q - 1 : s.end - q;
}
if (m == 0)
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
}
}
}
r = Z_OK;
s.window[q++] = (byte)lit; m--;
mode = START;
break;
case WASH: // o: got eob, possibly more output
if (k > 7)
{
// return unused byte, if any
k -= 8;
n++;
p--; // can always return one
}
s.write = q; r = s.inflate_flush(z, r);
q = s.write; m = q < s.read ? s.read - q - 1 : s.end - q;
if (s.read != s.write)
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
}
mode = END;
goto case END;
case END:
r = Z_STREAM_END;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
case BADCODE: // x: got error
r = Z_DATA_ERROR;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
default:
r = Z_STREAM_ERROR;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return s.inflate_flush(z, r);
}
}
}
// Called with number of bytes left to write in window at least 258
// (the maximum string length) and number of input bytes available
// at least ten. The ten bytes are six bytes for the longest length/
// distance pair plus four bytes for overloading the bit buffer.
internal int inflate_fast(int bl, int bd, int[] tl, int tl_index, int[] td, int td_index, InfBlocks s, ZStream z)
{
int t; // temporary pointer
int[] tp; // temporary pointer
int tp_index; // temporary pointer
int e; // extra bits or operation
int b; // bit buffer
int k; // bits in bit buffer
int p; // input data pointer
int n; // bytes available there
int q; // output window write pointer
int m; // bytes to end of window or read pointer
int ml; // mask for literal/length tree
int md; // mask for distance tree
int c; // bytes to copy
int d; // distance back to copy from
int r; // copy source pointer
// load input, output, bit values
p = z.next_in_index; n = z.avail_in; b = s.bitb; k = s.bitk;
q = s.write; m = q < s.read ? s.read - q - 1 : s.end - q;
// initialize masks
ml = inflate_mask[bl];
md = inflate_mask[bd];
// do until not enough input or output space for fast loop
do
{
// assume called with m >= 258 && n >= 10
// get literal/length code
while (k < (20))
{
// max bits for literal/length code
n--;
b |= (z.next_in[p++] & 0xff) << k; k += 8;
}
t = b & ml;
tp = tl;
tp_index = tl_index;
if ((e = tp[(tp_index + t) * 3]) == 0)
{
b >>= (tp[(tp_index + t) * 3 + 1]); k -= (tp[(tp_index + t) * 3 + 1]);
s.window[q++] = (byte)tp[(tp_index + t) * 3 + 2];
m--;
continue;
}
do
{
b >>= (tp[(tp_index + t) * 3 + 1]); k -= (tp[(tp_index + t) * 3 + 1]);
if ((e & 16) != 0)
{
e &= 15;
c = tp[(tp_index + t) * 3 + 2] + ((int)b & inflate_mask[e]);
b >>= e; k -= e;
// decode distance base of block to copy
while (k < (15))
{
// max bits for distance code
n--;
b |= (z.next_in[p++] & 0xff) << k; k += 8;
}
t = b & md;
tp = td;
tp_index = td_index;
e = tp[(tp_index + t) * 3];
do
{
b >>= (tp[(tp_index + t) * 3 + 1]); k -= (tp[(tp_index + t) * 3 + 1]);
if ((e & 16) != 0)
{
// get extra bits to add to distance base
e &= 15;
while (k < (e))
{
// get extra bits (up to 13)
n--;
b |= (z.next_in[p++] & 0xff) << k; k += 8;
}
d = tp[(tp_index + t) * 3 + 2] + (b & inflate_mask[e]);
b >>= (e); k -= (e);
// do the copy
m -= c;
if (q >= d)
{
// offset before dest
// just copy
r = q - d;
if (q - r > 0 && 2 > (q - r))
{
s.window[q++] = s.window[r++]; c--; // minimum count is three,
s.window[q++] = s.window[r++]; c--; // so unroll loop a little
}
else
{
Array.Copy(s.window, r, s.window, q, 2);
q += 2; r += 2; c -= 2;
}
}
else
{
// else offset after destination
r = q - d;
do
{
r += s.end; // force pointer in window
}
while (r < 0); // covers invalid distances
e = s.end - r;
if (c > e)
{
// if source crosses,
c -= e; // wrapped copy
if (q - r > 0 && e > (q - r))
{
do
{
s.window[q++] = s.window[r++];
}
while (--e != 0);
}
else
{
Array.Copy(s.window, r, s.window, q, e);
q += e; r += e; e = 0;
}
r = 0; // copy rest from start of window
}
}
// copy all or what's left
if (q - r > 0 && c > (q - r))
{
do
{
s.window[q++] = s.window[r++];
}
while (--c != 0);
}
else
{
Array.Copy(s.window, r, s.window, q, c);
q += c; r += c; c = 0;
}
break;
}
else if ((e & 64) == 0)
{
t += tp[(tp_index + t) * 3 + 2];
t += (b & inflate_mask[e]);
e = tp[(tp_index + t) * 3];
}
else
{
z.msg = "invalid distance code";
c = z.avail_in - n; c = (k >> 3) < c ? k >> 3 : c; n += c; p -= c; k -= (c << 3);
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return Z_DATA_ERROR;
}
}
while (true);
break;
}
if ((e & 64) == 0)
{
t += tp[(tp_index + t) * 3 + 2];
t += (b & inflate_mask[e]);
if ((e = tp[(tp_index + t) * 3]) == 0)
{
b >>= (tp[(tp_index + t) * 3 + 1]); k -= (tp[(tp_index + t) * 3 + 1]);
s.window[q++] = (byte)tp[(tp_index + t) * 3 + 2];
m--;
break;
}
}
else if ((e & 32) != 0)
{
c = z.avail_in - n; c = (k >> 3) < c ? k >> 3 : c; n += c; p -= c; k -= (c << 3);
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return Z_STREAM_END;
}
else
{
z.msg = "invalid literal/length code";
c = z.avail_in - n; c = (k >> 3) < c ? k >> 3 : c; n += c; p -= c; k -= (c << 3);
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return Z_DATA_ERROR;
}
}
while (true);
}
while (m >= 258 && n >= 10);
// not enough input or output--restore pointers and return
c = z.avail_in - n; c = (k >> 3) < c ? k >> 3 : c; n += c; p -= c; k -= (c << 3);
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return Z_OK;
}
internal int inflate_fast(int bl, int bd, int[] tl, int tl_index, int[] td, int td_index, InfBlocks s, ZStream z)
{
int num12;
int num6 = z.next_in_index;
int num7 = z.avail_in;
int num4 = s.bitb;
int num5 = s.bitk;
int num8 = s.write;
int num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
int num10 = InfCodes.inflate_mask[bl];
int num11 = InfCodes.inflate_mask[bd];
Label_0092:
while (num5 < 20)
{
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
int num1 = num4 & num10;
int[] numArray1 = tl;
int num2 = tl_index;
int num3 = numArray1[(num2 + num1) * 3];
if (num3 == 0)
{
num4 = num4 >> (numArray1[((num2 + num1) * 3) + 1] & 0x1f);
num5 -= numArray1[((num2 + num1) * 3) + 1];
s.window[num8++] = (byte) numArray1[((num2 + num1) * 3) + 2];
num9--;
goto Label_05E0;
}
Label_00F1:
num4 = num4 >> (numArray1[((num2 + num1) * 3) + 1] & 0x1f);
num5 -= numArray1[((num2 + num1) * 3) + 1];
if ((num3 & 0x10) == 0)
{
if ((num3 & 0x40) == 0)
{
num1 += numArray1[((num2 + num1) * 3) + 2];
num1 += num4 & InfCodes.inflate_mask[num3];
num3 = numArray1[(num2 + num1) * 3];
if (num3 != 0)
{
goto Label_00F1;
}
num4 = num4 >> (numArray1[((num2 + num1) * 3) + 1] & 0x1f);
num5 -= numArray1[((num2 + num1) * 3) + 1];
s.window[num8++] = (byte) numArray1[((num2 + num1) * 3) + 2];
num9--;
}
else
{
if ((num3 & 0x20) != 0)
{
num12 = z.avail_in - num7;
num12 = ((num5 >> 3) < num12) ? (num5 >> 3) : num12;
num7 += num12;
num6 -= num12;
num5 -= num12 << 3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return 1;
}
z.msg = "invalid literal/length code";
num12 = z.avail_in - num7;
num12 = ((num5 >> 3) < num12) ? (num5 >> 3) : num12;
num7 += num12;
num6 -= num12;
num5 -= num12 << 3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return -3;
}
goto Label_05E0;
}
num3 &= 15;
num12 = numArray1[((num2 + num1) * 3) + 2] + (num4 & InfCodes.inflate_mask[num3]);
num4 = num4 >> (num3 & 0x1f);
num5 -= num3;
while (num5 < 15)
{
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
num1 = num4 & num11;
numArray1 = td;
num2 = td_index;
num3 = numArray1[(num2 + num1) * 3];
Label_018B:
num4 = num4 >> (numArray1[((num2 + num1) * 3) + 1] & 0x1f);
num5 -= numArray1[((num2 + num1) * 3) + 1];
if ((num3 & 0x10) != 0)
{
int num14;
num3 &= 15;
while (num5 < num3)
{
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
int num13 = numArray1[((num2 + num1) * 3) + 2] + (num4 & InfCodes.inflate_mask[num3]);
num4 = num4 >> (num3 & 0x1f);
num5 -= num3;
num9 -= num12;
if (num8 >= num13)
{
num14 = num8 - num13;
if (((num8 - num14) > 0) && (2 > (num8 - num14)))
{
s.window[num8++] = s.window[num14++];
num12--;
s.window[num8++] = s.window[num14++];
num12--;
}
else
{
Array.Copy(s.window, num14, s.window, num8, 2);
num8 += 2;
num14 += 2;
num12 -= 2;
}
}
else
{
num14 = num8 - num13;
do
{
num14 += s.end;
}
while (num14 < 0);
num3 = s.end - num14;
if (num12 > num3)
{
num12 -= num3;
if (((num8 - num14) > 0) && (num3 > (num8 - num14)))
{
do
{
s.window[num8++] = s.window[num14++];
}
while (--num3 != 0);
}
else
{
Array.Copy(s.window, num14, s.window, num8, num3);
num8 += num3;
num14 += num3;
num3 = 0;
}
num14 = 0;
}
}
if (((num8 - num14) > 0) && (num12 > (num8 - num14)))
{
do
{
s.window[num8++] = s.window[num14++];
}
while (--num12 != 0);
}
else
{
Array.Copy(s.window, num14, s.window, num8, num12);
num8 += num12;
num14 += num12;
num12 = 0;
}
}
else
{
if ((num3 & 0x40) == 0)
{
num1 += numArray1[((num2 + num1) * 3) + 2];
num1 += num4 & InfCodes.inflate_mask[num3];
num3 = numArray1[(num2 + num1) * 3];
goto Label_018B;
}
z.msg = "invalid distance code";
num12 = z.avail_in - num7;
num12 = ((num5 >> 3) < num12) ? (num5 >> 3) : num12;
num7 += num12;
num6 -= num12;
num5 -= num12 << 3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return -3;
}
Label_05E0:
if ((num9 < 0x102) || (num7 < 10))
{
num12 = z.avail_in - num7;
num12 = ((num5 >> 3) < num12) ? (num5 >> 3) : num12;
num7 += num12;
num6 -= num12;
num5 -= num12 << 3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return 0;
}
goto Label_0092;
}
// Called with number of bytes left to write in window at least 258
// (the maximum string length) and number of input bytes available
// at least ten. The ten bytes are six bytes for the longest length/
// distance pair plus four bytes for overloading the bit buffer.
internal int inflate_fast(int bl, int bd, int[] tl, int tl_index, int[] td, int td_index, InfBlocks s, ZStream z)
{
int t; // temporary pointer
int[] tp; // temporary pointer
int tp_index; // temporary pointer
int e; // extra bits or operation
int b; // bit buffer
int k; // bits in bit buffer
int p; // input data pointer
int n; // bytes available there
int q; // output window write pointer
int m; // bytes to end of window or read pointer
int ml; // mask for literal/length tree
int md; // mask for distance tree
int c; // bytes to copy
int d; // distance back to copy from
int r; // copy source pointer
// load input, output, bit values
p = z.next_in_index; n = z.avail_in; b = s.bitb; k = s.bitk;
q = s.write; m = q < s.read?s.read - q - 1:s.end - q;
// initialize masks
ml = inflate_mask[bl];
md = inflate_mask[bd];
// do until not enough input or output space for fast loop
do
{
// assume called with m >= 258 && n >= 10
// get literal/length code
while (k < (20))
{
// max bits for literal/length code
n--;
b |= (z.next_in[p++] & 0xff) << k; k += 8;
}
t = b & ml;
tp = tl;
tp_index = tl_index;
if ((e = tp[(tp_index + t) * 3]) == 0)
{
b >>= (tp[(tp_index + t) * 3 + 1]); k -= (tp[(tp_index + t) * 3 + 1]);
s.window[q++] = (byte)tp[(tp_index + t) * 3 + 2];
m--;
continue;
}
do
{
b >>= (tp[(tp_index + t) * 3 + 1]); k -= (tp[(tp_index + t) * 3 + 1]);
if ((e & 16) != 0)
{
e &= 15;
c = tp[(tp_index + t) * 3 + 2] + ((int)b & inflate_mask[e]);
b >>= e; k -= e;
// decode distance base of block to copy
while (k < (15))
{
// max bits for distance code
n--;
b |= (z.next_in[p++] & 0xff) << k; k += 8;
}
t = b & md;
tp = td;
tp_index = td_index;
e = tp[(tp_index + t) * 3];
do
{
b >>= (tp[(tp_index + t) * 3 + 1]); k -= (tp[(tp_index + t) * 3 + 1]);
if ((e & 16) != 0)
{
// get extra bits to add to distance base
e &= 15;
while (k < (e))
{
// get extra bits (up to 13)
n--;
b |= (z.next_in[p++] & 0xff) << k; k += 8;
}
d = tp[(tp_index + t) * 3 + 2] + (b & inflate_mask[e]);
b >>= (e); k -= (e);
// do the copy
m -= c;
if (q >= d)
{
// offset before dest
// just copy
r = q - d;
if (q - r > 0 && 2 > (q - r))
{
s.window[q++] = s.window[r++]; c--; // minimum count is three,
s.window[q++] = s.window[r++]; c--; // so unroll loop a little
}
else
{
Array.Copy(s.window, r, s.window, q, 2);
q += 2; r += 2; c -= 2;
}
}
else
{
// else offset after destination
r = q - d;
do
{
r += s.end; // force pointer in window
}while (r < 0); // covers invalid distances
e = s.end - r;
if (c > e)
{
// if source crosses,
c -= e; // wrapped copy
if (q - r > 0 && e > (q - r))
{
do
{
s.window[q++] = s.window[r++];
}while (--e != 0);
}
else
{
Array.Copy(s.window, r, s.window, q, e);
q += e; r += e; e = 0;
}
r = 0; // copy rest from start of window
}
}
// copy all or what's left
if (q - r > 0 && c > (q - r))
{
do
{
s.window[q++] = s.window[r++];
}while (--c != 0);
}
else
{
Array.Copy(s.window, r, s.window, q, c);
q += c; r += c; c = 0;
}
break;
}
else if ((e & 64) == 0)
{
t += tp[(tp_index + t) * 3 + 2];
t += (b & inflate_mask[e]);
e = tp[(tp_index + t) * 3];
}
else
{
z.msg = "invalid distance code";
c = z.avail_in - n; c = (k >> 3) < c?k >> 3:c; n += c; p -= c; k -= (c << 3);
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(Z_DATA_ERROR);
}
}while (true);
break;
}
if ((e & 64) == 0)
{
t += tp[(tp_index + t) * 3 + 2];
t += (b & inflate_mask[e]);
if ((e = tp[(tp_index + t) * 3]) == 0)
{
b >>= (tp[(tp_index + t) * 3 + 1]); k -= (tp[(tp_index + t) * 3 + 1]);
s.window[q++] = (byte)tp[(tp_index + t) * 3 + 2];
m--;
break;
}
}
else if ((e & 32) != 0)
{
c = z.avail_in - n; c = (k >> 3) < c?k >> 3:c; n += c; p -= c; k -= (c << 3);
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(Z_STREAM_END);
}
else
{
z.msg = "invalid literal/length code";
c = z.avail_in - n; c = (k >> 3) < c?k >> 3:c; n += c; p -= c; k -= (c << 3);
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(Z_DATA_ERROR);
}
}while (true);
}while (m >= 258 && n >= 10);
// not enough input or output--restore pointers and return
c = z.avail_in - n; c = (k >> 3) < c?k >> 3:c; n += c; p -= c; k -= (c << 3);
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(Z_OK);
}
internal int proc(InfBlocks s, ZStream z, int r)
{
int num = z.next_in_index;
int num2 = z.avail_in;
int num3 = s.bitb;
int i = s.bitk;
int num4 = s.write;
int num5 = (num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4);
while (true)
{
int num6;
switch (this.mode)
{
case 0:
if (num5 >= 258 && num2 >= 10)
{
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
r = this.inflate_fast((int)this.lbits, (int)this.dbits, this.ltree, this.ltree_index, this.dtree, this.dtree_index, s, z);
num = z.next_in_index;
num2 = z.avail_in;
num3 = s.bitb;
i = s.bitk;
num4 = s.write;
num5 = ((num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4));
if (r != 0)
{
this.mode = ((r == 1) ? 7 : 9);
continue;
}
}
this.need = (int)this.lbits;
this.tree = this.ltree;
this.tree_index = this.ltree_index;
this.mode = 1;
goto IL_199;
case 1:
goto IL_199;
case 2:
num6 = this.get_Renamed;
while (i < num6)
{
if (num2 == 0)
{
goto IL_34F;
}
r = 0;
num2--;
num3 |= (int)(z.next_in[num++] & 255) << i;
i += 8;
}
this.len += (num3 & InfCodes.inflate_mask[num6]);
num3 >>= num6;
i -= num6;
this.need = (int)this.dbits;
this.tree = this.dtree;
this.tree_index = this.dtree_index;
this.mode = 3;
goto IL_412;
case 3:
goto IL_412;
case 4:
num6 = this.get_Renamed;
while (i < num6)
{
if (num2 == 0)
{
goto IL_596;
}
r = 0;
num2--;
num3 |= (int)(z.next_in[num++] & 255) << i;
i += 8;
}
this.dist += (num3 & InfCodes.inflate_mask[num6]);
num3 >>= num6;
i -= num6;
this.mode = 5;
goto IL_635;
case 5:
goto IL_635;
case 6:
if (num5 == 0)
{
if (num4 == s.end && s.read != 0)
{
num4 = 0;
num5 = ((num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4));
}
if (num5 == 0)
{
s.write = num4;
r = s.inflate_flush(z, r);
num4 = s.write;
num5 = ((num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4));
if (num4 == s.end && s.read != 0)
{
num4 = 0;
num5 = ((num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4));
}
if (num5 == 0)
{
goto Block_44;
}
}
}
r = 0;
s.window[num4++] = (byte)this.lit;
num5--;
this.mode = 0;
continue;
case 7:
goto IL_8DB;
case 8:
goto IL_98A;
case 9:
goto IL_9D4;
}
break;
IL_199:
num6 = this.need;
while (i < num6)
{
if (num2 == 0)
{
goto IL_1AB;
}
r = 0;
num2--;
num3 |= (int)(z.next_in[num++] & 255) << i;
i += 8;
}
int num7 = (this.tree_index + (num3 & InfCodes.inflate_mask[num6])) * 3;
num3 = SupportClass.URShift(num3, this.tree[num7 + 1]);
i -= this.tree[num7 + 1];
int num8 = this.tree[num7];
if (num8 == 0)
{
this.lit = this.tree[num7 + 2];
this.mode = 6;
continue;
}
if ((num8 & 16) != 0)
{
this.get_Renamed = (num8 & 15);
this.len = this.tree[num7 + 2];
this.mode = 2;
continue;
}
if ((num8 & 64) == 0)
{
this.need = num8;
this.tree_index = num7 / 3 + this.tree[num7 + 2];
continue;
}
if ((num8 & 32) != 0)
{
this.mode = 7;
continue;
}
goto IL_2DF;
IL_412:
num6 = this.need;
while (i < num6)
{
if (num2 == 0)
{
goto IL_424;
}
r = 0;
num2--;
num3 |= (int)(z.next_in[num++] & 255) << i;
i += 8;
}
num7 = (this.tree_index + (num3 & InfCodes.inflate_mask[num6])) * 3;
num3 >>= this.tree[num7 + 1];
i -= this.tree[num7 + 1];
num8 = this.tree[num7];
if ((num8 & 16) != 0)
{
this.get_Renamed = (num8 & 15);
this.dist = this.tree[num7 + 2];
this.mode = 4;
continue;
}
if ((num8 & 64) == 0)
{
this.need = num8;
this.tree_index = num7 / 3 + this.tree[num7 + 2];
continue;
}
goto IL_526;
IL_635:
int j;
for (j = num4 - this.dist; j < 0; j += s.end)
{
}
while (this.len != 0)
{
if (num5 == 0)
{
if (num4 == s.end && s.read != 0)
{
num4 = 0;
num5 = ((num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4));
}
if (num5 == 0)
{
s.write = num4;
r = s.inflate_flush(z, r);
num4 = s.write;
num5 = ((num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4));
if (num4 == s.end && s.read != 0)
{
num4 = 0;
num5 = ((num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4));
}
if (num5 == 0)
{
goto Block_32;
}
}
}
s.window[num4++] = s.window[j++];
num5--;
if (j == s.end)
{
j = 0;
}
this.len--;
}
this.mode = 0;
}
r = -2;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
IL_1AB:
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
IL_2DF:
this.mode = 9;
z.msg = "invalid literal/length code";
r = -3;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
IL_34F:
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
IL_424:
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
IL_526:
this.mode = 9;
z.msg = "invalid distance code";
r = -3;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
IL_596:
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
Block_32:
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
Block_44:
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
IL_8DB:
if (i > 7)
{
i -= 8;
num2++;
num--;
}
s.write = num4;
r = s.inflate_flush(z, r);
num4 = s.write;
int arg_92C_0 = (num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4);
if (s.read != s.write)
{
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
}
this.mode = 8;
IL_98A:
r = 1;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
IL_9D4:
r = -3;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(s.inflate_flush(z, r));
}
internal int inflate_fast(int bl, int bd, int[] tl, int tl_index, int[] td, int td_index, InfBlocks s, ZStream z)
{
int num = z.next_in_index;
int num2 = z.avail_in;
int num3 = s.bitb;
int i = s.bitk;
int num4 = s.write;
int num5 = (num4 < s.read) ? (s.read - num4 - 1) : (s.end - num4);
int num6 = InfCodes.inflate_mask[bl];
int num7 = InfCodes.inflate_mask[bd];
int num9;
int num10;
while (true)
{
if (i >= 20)
{
int num8 = num3 & num6;
if ((num9 = tl[(tl_index + num8) * 3]) == 0)
{
num3 >>= tl[(tl_index + num8) * 3 + 1];
i -= tl[(tl_index + num8) * 3 + 1];
s.window[num4++] = (byte)tl[(tl_index + num8) * 3 + 2];
num5--;
}
else
{
while (true)
{
num3 >>= tl[(tl_index + num8) * 3 + 1];
i -= tl[(tl_index + num8) * 3 + 1];
if ((num9 & 16) != 0)
{
break;
}
if ((num9 & 64) != 0)
{
goto IL_4D3;
}
num8 += tl[(tl_index + num8) * 3 + 2];
num8 += (num3 & InfCodes.inflate_mask[num9]);
if ((num9 = tl[(tl_index + num8) * 3]) == 0)
{
goto Block_20;
}
}
num9 &= 15;
num10 = tl[(tl_index + num8) * 3 + 2] + (num3 & InfCodes.inflate_mask[num9]);
num3 >>= num9;
for (i -= num9; i < 15; i += 8)
{
num2--;
num3 |= (int)(z.next_in[num++] & 255) << i;
}
num8 = (num3 & num7);
num9 = td[(td_index + num8) * 3];
while (true)
{
num3 >>= td[(td_index + num8) * 3 + 1];
i -= td[(td_index + num8) * 3 + 1];
if ((num9 & 16) != 0)
{
break;
}
if ((num9 & 64) != 0)
{
goto IL_3D9;
}
num8 += td[(td_index + num8) * 3 + 2];
num8 += (num3 & InfCodes.inflate_mask[num9]);
num9 = td[(td_index + num8) * 3];
}
num9 &= 15;
while (i < num9)
{
num2--;
num3 |= (int)(z.next_in[num++] & 255) << i;
i += 8;
}
int num11 = td[(td_index + num8) * 3 + 2] + (num3 & InfCodes.inflate_mask[num9]);
num3 >>= num9;
i -= num9;
num5 -= num10;
int num12;
if (num4 >= num11)
{
num12 = num4 - num11;
if (num4 - num12 > 0 && 2 > num4 - num12)
{
s.window[num4++] = s.window[num12++];
num10--;
s.window[num4++] = s.window[num12++];
num10--;
}
else
{
Array.Copy(s.window, num12, s.window, num4, 2);
num4 += 2;
num12 += 2;
num10 -= 2;
}
}
else
{
num12 = num4 - num11;
do
{
num12 += s.end;
}while (num12 < 0);
num9 = s.end - num12;
if (num10 > num9)
{
num10 -= num9;
if (num4 - num12 > 0 && num9 > num4 - num12)
{
do
{
s.window[num4++] = s.window[num12++];
}while (--num9 != 0);
}
else
{
Array.Copy(s.window, num12, s.window, num4, num9);
num4 += num9;
num12 += num9;
}
num12 = 0;
}
}
if (num4 - num12 > 0 && num10 > num4 - num12)
{
do
{
s.window[num4++] = s.window[num12++];
}while (--num10 != 0);
goto IL_5E0;
}
Array.Copy(s.window, num12, s.window, num4, num10);
num4 += num10;
num12 += num10;
goto IL_5E0;
Block_20:
num3 >>= tl[(tl_index + num8) * 3 + 1];
i -= tl[(tl_index + num8) * 3 + 1];
s.window[num4++] = (byte)tl[(tl_index + num8) * 3 + 2];
num5--;
}
IL_5E0:
if (num5 < 258 || num2 < 10)
{
goto IL_5F2;
}
}
else
{
num2--;
num3 |= (int)(z.next_in[num++] & 255) << i;
i += 8;
}
}
IL_3D9:
z.msg = "invalid distance code";
num10 = z.avail_in - num2;
num10 = ((i >> 3 < num10) ? (i >> 3) : num10);
num2 += num10;
num -= num10;
i -= num10 << 3;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(-3);
IL_4D3:
if ((num9 & 32) != 0)
{
num10 = z.avail_in - num2;
num10 = ((i >> 3 < num10) ? (i >> 3) : num10);
num2 += num10;
num -= num10;
i -= num10 << 3;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(1);
}
z.msg = "invalid literal/length code";
num10 = z.avail_in - num2;
num10 = ((i >> 3 < num10) ? (i >> 3) : num10);
num2 += num10;
num -= num10;
i -= num10 << 3;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(-3);
IL_5F2:
num10 = z.avail_in - num2;
num10 = ((i >> 3 < num10) ? (i >> 3) : num10);
num2 += num10;
num -= num10;
i -= num10 << 3;
s.bitb = num3;
s.bitk = i;
z.avail_in = num2;
z.total_in += (long)(num - z.next_in_index);
z.next_in_index = num;
s.write = num4;
return(0);
}
internal int inflateInit(ZStream z, int w)
{
z.msg = null;
blocks = null;
// handle undocumented nowrap option (no zlib header or check)
nowrap = 0;
if (w < 0)
{
w = - w;
nowrap = 1;
}
// set window size
if (w < 8 || w > 15)
{
inflateEnd(z);
return Z_STREAM_ERROR;
}
wbits = w;
z.istate.blocks = new InfBlocks(z, z.istate.nowrap != 0?null:this, 1 << w);
// reset state
inflateReset(z);
return Z_OK;
}
internal int inflate_fast(int bl, int bd, int[] tl, int tl_index, int[] td, int td_index, InfBlocks s, ZStream z)
{
int num12;
int num6 = z.next_in_index;
int num7 = z.avail_in;
int bitb = s.bitb;
int bitk = s.bitk;
int write = s.write;
int num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
int num10 = inflate_mask[bl];
int num11 = inflate_mask[bd];
Label_0092:
while (bitk < 20)
{
num7--;
bitb |= (z.next_in[num6++] & 0xff) << bitk;
bitk += 8;
}
int num = bitb & num10;
int[] numArray = tl;
int num2 = tl_index;
int index = numArray[(num2 + num) * 3];
if (index == 0)
{
bitb = bitb >> numArray[((num2 + num) * 3) + 1];
bitk -= numArray[((num2 + num) * 3) + 1];
s.window[write++] = (byte) numArray[((num2 + num) * 3) + 2];
num9--;
goto Label_05E0;
}
Label_00F1:
bitb = bitb >> numArray[((num2 + num) * 3) + 1];
bitk -= numArray[((num2 + num) * 3) + 1];
if ((index & 0x10) == 0)
{
if ((index & 0x40) == 0)
{
num += numArray[((num2 + num) * 3) + 2];
num += bitb & inflate_mask[index];
index = numArray[(num2 + num) * 3];
if (index != 0)
{
goto Label_00F1;
}
bitb = bitb >> numArray[((num2 + num) * 3) + 1];
bitk -= numArray[((num2 + num) * 3) + 1];
s.window[write++] = (byte) numArray[((num2 + num) * 3) + 2];
num9--;
}
else
{
if ((index & 0x20) != 0)
{
num12 = z.avail_in - num7;
num12 = ((bitk >> 3) < num12) ? (bitk >> 3) : num12;
num7 += num12;
num6 -= num12;
bitk -= num12 << 3;
s.bitb = bitb;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return 1;
}
z.msg = "invalid literal/length code";
num12 = z.avail_in - num7;
num12 = ((bitk >> 3) < num12) ? (bitk >> 3) : num12;
num7 += num12;
num6 -= num12;
bitk -= num12 << 3;
s.bitb = bitb;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return -3;
}
goto Label_05E0;
}
index &= 15;
num12 = numArray[((num2 + num) * 3) + 2] + (bitb & inflate_mask[index]);
bitb = bitb >> index;
bitk -= index;
while (bitk < 15)
{
num7--;
bitb |= (z.next_in[num6++] & 0xff) << bitk;
bitk += 8;
}
num = bitb & num11;
numArray = td;
num2 = td_index;
index = numArray[(num2 + num) * 3];
Label_018B:
bitb = bitb >> numArray[((num2 + num) * 3) + 1];
bitk -= numArray[((num2 + num) * 3) + 1];
if ((index & 0x10) != 0)
{
int num14;
index &= 15;
while (bitk < index)
{
num7--;
bitb |= (z.next_in[num6++] & 0xff) << bitk;
bitk += 8;
}
int num13 = numArray[((num2 + num) * 3) + 2] + (bitb & inflate_mask[index]);
bitb = bitb >> index;
bitk -= index;
num9 -= num12;
if (write >= num13)
{
num14 = write - num13;
if (((write - num14) > 0) && (2 > (write - num14)))
{
s.window[write++] = s.window[num14++];
num12--;
s.window[write++] = s.window[num14++];
num12--;
}
else
{
Array.Copy(s.window, num14, s.window, write, 2);
write += 2;
num14 += 2;
num12 -= 2;
}
}
else
{
num14 = write - num13;
do
{
num14 += s.end;
}
while (num14 < 0);
index = s.end - num14;
if (num12 > index)
{
num12 -= index;
if (((write - num14) > 0) && (index > (write - num14)))
{
do
{
s.window[write++] = s.window[num14++];
}
while (--index != 0);
}
else
{
Array.Copy(s.window, num14, s.window, write, index);
write += index;
num14 += index;
index = 0;
}
num14 = 0;
}
}
if (((write - num14) > 0) && (num12 > (write - num14)))
{
do
{
s.window[write++] = s.window[num14++];
}
while (--num12 != 0);
}
else
{
Array.Copy(s.window, num14, s.window, write, num12);
write += num12;
num14 += num12;
num12 = 0;
}
}
else
{
if ((index & 0x40) == 0)
{
num += numArray[((num2 + num) * 3) + 2];
num += bitb & inflate_mask[index];
index = numArray[(num2 + num) * 3];
goto Label_018B;
}
z.msg = "invalid distance code";
num12 = z.avail_in - num7;
num12 = ((bitk >> 3) < num12) ? (bitk >> 3) : num12;
num7 += num12;
num6 -= num12;
bitk -= num12 << 3;
s.bitb = bitb;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return -3;
}
Label_05E0:
if ((num9 >= 0x102) && (num7 >= 10))
{
goto Label_0092;
}
num12 = z.avail_in - num7;
num12 = ((bitk >> 3) < num12) ? (bitk >> 3) : num12;
num7 += num12;
num6 -= num12;
bitk -= num12 << 3;
s.bitb = bitb;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return 0;
}
internal int proc(InfBlocks s, ZStream z, int r)
{
int num;
int num10;
int number = 0;
int bitk = 0;
int num6 = 0;
num6 = z.next_in_index;
int num7 = z.avail_in;
number = s.bitb;
bitk = s.bitk;
int write = s.write;
int num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
Label_0051:
switch (this.mode)
{
case 0:
if ((num9 < 0x102) || (num7 < 10))
{
break;
}
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
r = this.inflate_fast(this.lbits, this.dbits, this.ltree, this.ltree_index, this.dtree, this.dtree_index, s, z);
num6 = z.next_in_index;
num7 = z.avail_in;
number = s.bitb;
bitk = s.bitk;
write = s.write;
num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
if (r == 0)
{
break;
}
this.mode = (r == 1) ? 7 : 9;
goto Label_0051;
case 1:
goto Label_0199;
case 2:
num = this.get_Renamed;
while (bitk < num)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
num7--;
number |= (z.next_in[num6++] & 0xff) << bitk;
bitk += 8;
}
this.len += number & inflate_mask[num];
number = number >> num;
bitk -= num;
this.need = this.dbits;
this.tree = this.dtree;
this.tree_index = this.dtree_index;
this.mode = 3;
goto Label_0412;
case 3:
goto Label_0412;
case 4:
num = this.get_Renamed;
while (bitk < num)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
num7--;
number |= (z.next_in[num6++] & 0xff) << bitk;
bitk += 8;
}
this.dist += number & inflate_mask[num];
number = number >> num;
bitk -= num;
this.mode = 5;
goto Label_0635;
case 5:
goto Label_0635;
case 6:
if (num9 == 0)
{
if ((write == s.end) && (s.read != 0))
{
write = 0;
num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
}
if (num9 == 0)
{
s.write = write;
r = s.inflate_flush(z, r);
write = s.write;
num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
if ((write == s.end) && (s.read != 0))
{
write = 0;
num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
}
if (num9 == 0)
{
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
}
}
r = 0;
s.window[write++] = (byte) this.lit;
num9--;
this.mode = 0;
goto Label_0051;
case 7:
if (bitk > 7)
{
bitk -= 8;
num7++;
num6--;
}
s.write = write;
r = s.inflate_flush(z, r);
write = s.write;
num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
if (s.read != s.write)
{
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
this.mode = 8;
goto Label_098A;
case 8:
goto Label_098A;
case 9:
r = -3;
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
default:
r = -2;
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
this.need = this.lbits;
this.tree = this.ltree;
this.tree_index = this.ltree_index;
this.mode = 1;
Label_0199:
num = this.need;
while (bitk < num)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
num7--;
number |= (z.next_in[num6++] & 0xff) << bitk;
bitk += 8;
}
int index = (this.tree_index + (number & inflate_mask[num])) * 3;
number = SupportClass.URShift(number, this.tree[index + 1]);
bitk -= this.tree[index + 1];
int num3 = this.tree[index];
if (num3 == 0)
{
this.lit = this.tree[index + 2];
this.mode = 6;
goto Label_0051;
}
if ((num3 & 0x10) != 0)
{
this.get_Renamed = num3 & 15;
this.len = this.tree[index + 2];
this.mode = 2;
goto Label_0051;
}
if ((num3 & 0x40) == 0)
{
this.need = num3;
this.tree_index = (index / 3) + this.tree[index + 2];
goto Label_0051;
}
if ((num3 & 0x20) != 0)
{
this.mode = 7;
goto Label_0051;
}
this.mode = 9;
z.msg = "invalid literal/length code";
r = -3;
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
Label_0412:
num = this.need;
while (bitk < num)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
num7--;
number |= (z.next_in[num6++] & 0xff) << bitk;
bitk += 8;
}
index = (this.tree_index + (number & inflate_mask[num])) * 3;
number = number >> this.tree[index + 1];
bitk -= this.tree[index + 1];
num3 = this.tree[index];
if ((num3 & 0x10) != 0)
{
this.get_Renamed = num3 & 15;
this.dist = this.tree[index + 2];
this.mode = 4;
goto Label_0051;
}
if ((num3 & 0x40) == 0)
{
this.need = num3;
this.tree_index = (index / 3) + this.tree[index + 2];
goto Label_0051;
}
this.mode = 9;
z.msg = "invalid distance code";
r = -3;
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
Label_0635:
num10 = write - this.dist;
while (num10 < 0)
{
num10 += s.end;
}
while (this.len != 0)
{
if (num9 == 0)
{
if ((write == s.end) && (s.read != 0))
{
write = 0;
num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
}
if (num9 == 0)
{
s.write = write;
r = s.inflate_flush(z, r);
write = s.write;
num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
if ((write == s.end) && (s.read != 0))
{
write = 0;
num9 = (write < s.read) ? ((s.read - write) - 1) : (s.end - write);
}
if (num9 == 0)
{
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
}
}
s.window[write++] = s.window[num10++];
num9--;
if (num10 == s.end)
{
num10 = 0;
}
this.len--;
}
this.mode = 0;
goto Label_0051;
Label_098A:
r = 1;
s.bitb = number;
s.bitk = bitk;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = write;
return s.inflate_flush(z, r);
}
internal int proc(InfBlocks s, ZStream z, int r)
{
int num1;
int num10;
int num4 = 0;
int num5 = 0;
int num6 = 0;
num6 = z.next_in_index;
int num7 = z.avail_in;
num4 = s.bitb;
num5 = s.bitk;
int num8 = s.write;
int num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
Label_0051:
switch (this.mode)
{
case 0:
if ((num9 < 0x102) || (num7 < 10))
{
break;
}
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
r = this.inflate_fast(this.lbits, this.dbits, this.ltree, this.ltree_index, this.dtree, this.dtree_index, s, z);
num6 = z.next_in_index;
num7 = z.avail_in;
num4 = s.bitb;
num5 = s.bitk;
num8 = s.write;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
if (r == 0)
{
break;
}
this.mode = (r == 1) ? 7 : 9;
goto Label_0051;
case 1:
goto Label_0199;
case 2:
num1 = this.get_Renamed;
while (num5 < num1)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
this.len += num4 & InfCodes.inflate_mask[num1];
num4 = num4 >> (num1 & 0x1f);
num5 -= num1;
this.need = this.dbits;
this.tree = this.dtree;
this.tree_index = this.dtree_index;
this.mode = 3;
goto Label_0412;
case 3:
goto Label_0412;
case 4:
num1 = this.get_Renamed;
while (num5 < num1)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
this.dist += num4 & InfCodes.inflate_mask[num1];
num4 = num4 >> (num1 & 0x1f);
num5 -= num1;
this.mode = 5;
goto Label_0635;
case 5:
goto Label_0635;
case 6:
if (num9 == 0)
{
if ((num8 == s.end) && (s.read != 0))
{
num8 = 0;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
}
if (num9 == 0)
{
s.write = num8;
r = s.inflate_flush(z, r);
num8 = s.write;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
if ((num8 == s.end) && (s.read != 0))
{
num8 = 0;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
}
if (num9 == 0)
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
}
}
r = 0;
s.window[num8++] = (byte)this.lit;
num9--;
this.mode = 0;
goto Label_0051;
case 7:
if (num5 > 7)
{
num5 -= 8;
num7++;
num6--;
}
s.write = num8;
r = s.inflate_flush(z, r);
num8 = s.write;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
if (s.read != s.write)
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
this.mode = 8;
goto Label_098A;
case 8:
goto Label_098A;
case 9:
r = -3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
default:
r = -2;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
this.need = this.lbits;
this.tree = this.ltree;
this.tree_index = this.ltree_index;
this.mode = 1;
Label_0199:
num1 = this.need;
while (num5 < num1)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
int num2 = (this.tree_index + (num4 & InfCodes.inflate_mask[num1])) * 3;
num4 = SupportClass.URShift(num4, this.tree[num2 + 1]);
num5 -= this.tree[num2 + 1];
int num3 = this.tree[num2];
if (num3 == 0)
{
this.lit = this.tree[num2 + 2];
this.mode = 6;
goto Label_0051;
}
if ((num3 & 0x10) != 0)
{
this.get_Renamed = num3 & 15;
this.len = this.tree[num2 + 2];
this.mode = 2;
goto Label_0051;
}
if ((num3 & 0x40) == 0)
{
this.need = num3;
this.tree_index = (num2 / 3) + this.tree[num2 + 2];
goto Label_0051;
}
if ((num3 & 0x20) != 0)
{
this.mode = 7;
goto Label_0051;
}
this.mode = 9;
z.msg = "invalid literal/length code";
r = -3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
Label_0412:
num1 = this.need;
while (num5 < num1)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
num2 = (this.tree_index + (num4 & InfCodes.inflate_mask[num1])) * 3;
num4 = num4 >> (this.tree[num2 + 1] & 0x1f);
num5 -= this.tree[num2 + 1];
num3 = this.tree[num2];
if ((num3 & 0x10) != 0)
{
this.get_Renamed = num3 & 15;
this.dist = this.tree[num2 + 2];
this.mode = 4;
goto Label_0051;
}
if ((num3 & 0x40) == 0)
{
this.need = num3;
this.tree_index = (num2 / 3) + this.tree[num2 + 2];
goto Label_0051;
}
this.mode = 9;
z.msg = "invalid distance code";
r = -3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
Label_0635:
num10 = num8 - this.dist;
while (num10 < 0)
{
num10 += s.end;
}
while (this.len != 0)
{
if (num9 == 0)
{
if ((num8 == s.end) && (s.read != 0))
{
num8 = 0;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
}
if (num9 == 0)
{
s.write = num8;
r = s.inflate_flush(z, r);
num8 = s.write;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
if ((num8 == s.end) && (s.read != 0))
{
num8 = 0;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
}
if (num9 == 0)
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
}
}
s.window[num8++] = s.window[num10++];
num9--;
if (num10 == s.end)
{
num10 = 0;
}
this.len--;
}
this.mode = 0;
goto Label_0051;
Label_098A:
r = 1;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(s.inflate_flush(z, r));
}
internal int proc(InfBlocks s, ZStream z, int r)
{
int j; // temporary storage
//int[] t; // temporary pointer
int tindex; // temporary pointer
int e; // extra bits or operation
int b = 0; // bit buffer
int k = 0; // bits in bit buffer
int p = 0; // input data pointer
int n; // bytes available there
int q; // output window write pointer
int m; // bytes to end of window or read pointer
int f; // pointer to copy strings from
// copy input/output information to locals (UPDATE macro restores)
p = z.next_in_index; n = z.avail_in; b = s.bitb; k = s.bitk;
q = s.write; m = q < s.read?s.read - q - 1:s.end - q;
// process input and output based on current state
while (true)
{
switch (mode)
{
// waiting for "i:"=input, "o:"=output, "x:"=nothing
case START: // x: set up for LEN
if (m >= 258 && n >= 10)
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
r = inflate_fast(lbits, dbits, ltree, ltree_index, dtree, dtree_index, s, z);
p = z.next_in_index; n = z.avail_in; b = s.bitb; k = s.bitk;
q = s.write; m = q < s.read?s.read - q - 1:s.end - q;
if (r != Z_OK)
{
mode = r == Z_STREAM_END?WASH:BADCODE;
break;
}
}
need = lbits;
tree = ltree;
tree_index = ltree_index;
mode = LEN;
goto case LEN;
case LEN: // i: get length/literal/eob next
j = need;
while (k < (j))
{
if (n != 0)
{
r = Z_OK;
}
else
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
}
n--;
b |= (z.next_in[p++] & 0xff) << k;
k += 8;
}
tindex = (tree_index + (b & inflate_mask[j])) * 3;
b = SupportClass.URShift(b, (tree[tindex + 1]));
k -= (tree[tindex + 1]);
e = tree[tindex];
if (e == 0)
{
// literal
lit = tree[tindex + 2];
mode = LIT;
break;
}
if ((e & 16) != 0)
{
// length
get_Renamed = e & 15;
len = tree[tindex + 2];
mode = LENEXT;
break;
}
if ((e & 64) == 0)
{
// next table
need = e;
tree_index = tindex / 3 + tree[tindex + 2];
break;
}
if ((e & 32) != 0)
{
// end of block
mode = WASH;
break;
}
mode = BADCODE; // invalid code
z.msg = "invalid literal/length code";
r = Z_DATA_ERROR;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
case LENEXT: // i: getting length extra (have base)
j = get_Renamed;
while (k < (j))
{
if (n != 0)
{
r = Z_OK;
}
else
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
}
n--; b |= (z.next_in[p++] & 0xff) << k;
k += 8;
}
len += (b & inflate_mask[j]);
b >>= j;
k -= j;
need = dbits;
tree = dtree;
tree_index = dtree_index;
mode = DIST;
goto case DIST;
case DIST: // i: get distance next
j = need;
while (k < (j))
{
if (n != 0)
{
r = Z_OK;
}
else
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
}
n--; b |= (z.next_in[p++] & 0xff) << k;
k += 8;
}
tindex = (tree_index + (b & inflate_mask[j])) * 3;
b >>= tree[tindex + 1];
k -= tree[tindex + 1];
e = (tree[tindex]);
if ((e & 16) != 0)
{
// distance
get_Renamed = e & 15;
dist = tree[tindex + 2];
mode = DISTEXT;
break;
}
if ((e & 64) == 0)
{
// next table
need = e;
tree_index = tindex / 3 + tree[tindex + 2];
break;
}
mode = BADCODE; // invalid code
z.msg = "invalid distance code";
r = Z_DATA_ERROR;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
case DISTEXT: // i: getting distance extra
j = get_Renamed;
while (k < (j))
{
if (n != 0)
{
r = Z_OK;
}
else
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
}
n--; b |= (z.next_in[p++] & 0xff) << k;
k += 8;
}
dist += (b & inflate_mask[j]);
b >>= j;
k -= j;
mode = COPY;
goto case COPY;
case COPY: // o: copying bytes in window, waiting for space
f = q - dist;
while (f < 0)
{
// modulo window size-"while" instead
f += s.end; // of "if" handles invalid distances
}
while (len != 0)
{
if (m == 0)
{
if (q == s.end && s.read != 0)
{
q = 0; m = q < s.read?s.read - q - 1:s.end - q;
}
if (m == 0)
{
s.write = q; r = s.inflate_flush(z, r);
q = s.write; m = q < s.read?s.read - q - 1:s.end - q;
if (q == s.end && s.read != 0)
{
q = 0; m = q < s.read?s.read - q - 1:s.end - q;
}
if (m == 0)
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
}
}
}
s.window[q++] = s.window[f++]; m--;
if (f == s.end)
{
f = 0;
}
len--;
}
mode = START;
break;
case LIT: // o: got literal, waiting for output space
if (m == 0)
{
if (q == s.end && s.read != 0)
{
q = 0; m = q < s.read?s.read - q - 1:s.end - q;
}
if (m == 0)
{
s.write = q; r = s.inflate_flush(z, r);
q = s.write; m = q < s.read?s.read - q - 1:s.end - q;
if (q == s.end && s.read != 0)
{
q = 0; m = q < s.read?s.read - q - 1:s.end - q;
}
if (m == 0)
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
}
}
}
r = Z_OK;
s.window[q++] = (byte)lit; m--;
mode = START;
break;
case WASH: // o: got eob, possibly more output
if (k > 7)
{
// return unused byte, if any
k -= 8;
n++;
p--; // can always return one
}
s.write = q; r = s.inflate_flush(z, r);
q = s.write; m = q < s.read?s.read - q - 1:s.end - q;
if (s.read != s.write)
{
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
}
mode = END;
goto case END;
case END:
r = Z_STREAM_END;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
case BADCODE: // x: got error
r = Z_DATA_ERROR;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
default:
r = Z_STREAM_ERROR;
s.bitb = b; s.bitk = k;
z.avail_in = n; z.total_in += p - z.next_in_index; z.next_in_index = p;
s.write = q;
return(s.inflate_flush(z, r));
}
}
}
internal int inflate_fast(int bl, int bd, int[] tl, int tl_index, int[] td, int td_index, InfBlocks s, ZStream z)
{
int num12;
int num6 = z.next_in_index;
int num7 = z.avail_in;
int num4 = s.bitb;
int num5 = s.bitk;
int num8 = s.write;
int num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
int num10 = InfCodes.inflate_mask[bl];
int num11 = InfCodes.inflate_mask[bd];
Label_0092:
while (num5 < 20)
{
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
int num1 = num4 & num10;
int[] numArray1 = tl;
int num2 = tl_index;
int num3 = numArray1[(num2 + num1) * 3];
if (num3 == 0)
{
num4 = num4 >> (numArray1[((num2 + num1) * 3) + 1] & 0x1f);
num5 -= numArray1[((num2 + num1) * 3) + 1];
s.window[num8++] = (byte)numArray1[((num2 + num1) * 3) + 2];
num9--;
goto Label_05E0;
}
Label_00F1:
num4 = num4 >> (numArray1[((num2 + num1) * 3) + 1] & 0x1f);
num5 -= numArray1[((num2 + num1) * 3) + 1];
if ((num3 & 0x10) == 0)
{
if ((num3 & 0x40) == 0)
{
num1 += numArray1[((num2 + num1) * 3) + 2];
num1 += num4 & InfCodes.inflate_mask[num3];
num3 = numArray1[(num2 + num1) * 3];
if (num3 != 0)
{
goto Label_00F1;
}
num4 = num4 >> (numArray1[((num2 + num1) * 3) + 1] & 0x1f);
num5 -= numArray1[((num2 + num1) * 3) + 1];
s.window[num8++] = (byte)numArray1[((num2 + num1) * 3) + 2];
num9--;
}
else
{
if ((num3 & 0x20) != 0)
{
num12 = z.avail_in - num7;
num12 = ((num5 >> 3) < num12) ? (num5 >> 3) : num12;
num7 += num12;
num6 -= num12;
num5 -= num12 << 3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(1);
}
z.msg = "invalid literal/length code";
num12 = z.avail_in - num7;
num12 = ((num5 >> 3) < num12) ? (num5 >> 3) : num12;
num7 += num12;
num6 -= num12;
num5 -= num12 << 3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(-3);
}
goto Label_05E0;
}
num3 &= 15;
num12 = numArray1[((num2 + num1) * 3) + 2] + (num4 & InfCodes.inflate_mask[num3]);
num4 = num4 >> (num3 & 0x1f);
num5 -= num3;
while (num5 < 15)
{
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
num1 = num4 & num11;
numArray1 = td;
num2 = td_index;
num3 = numArray1[(num2 + num1) * 3];
Label_018B:
num4 = num4 >> (numArray1[((num2 + num1) * 3) + 1] & 0x1f);
num5 -= numArray1[((num2 + num1) * 3) + 1];
if ((num3 & 0x10) != 0)
{
int num14;
num3 &= 15;
while (num5 < num3)
{
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
int num13 = numArray1[((num2 + num1) * 3) + 2] + (num4 & InfCodes.inflate_mask[num3]);
num4 = num4 >> (num3 & 0x1f);
num5 -= num3;
num9 -= num12;
if (num8 >= num13)
{
num14 = num8 - num13;
if (((num8 - num14) > 0) && (2 > (num8 - num14)))
{
s.window[num8++] = s.window[num14++];
num12--;
s.window[num8++] = s.window[num14++];
num12--;
}
else
{
Array.Copy(s.window, num14, s.window, num8, 2);
num8 += 2;
num14 += 2;
num12 -= 2;
}
}
else
{
num14 = num8 - num13;
do
{
num14 += s.end;
}while (num14 < 0);
num3 = s.end - num14;
if (num12 > num3)
{
num12 -= num3;
if (((num8 - num14) > 0) && (num3 > (num8 - num14)))
{
do
{
s.window[num8++] = s.window[num14++];
}while (--num3 != 0);
}
else
{
Array.Copy(s.window, num14, s.window, num8, num3);
num8 += num3;
num14 += num3;
num3 = 0;
}
num14 = 0;
}
}
if (((num8 - num14) > 0) && (num12 > (num8 - num14)))
{
do
{
s.window[num8++] = s.window[num14++];
}while (--num12 != 0);
}
else
{
Array.Copy(s.window, num14, s.window, num8, num12);
num8 += num12;
num14 += num12;
num12 = 0;
}
}
else
{
if ((num3 & 0x40) == 0)
{
num1 += numArray1[((num2 + num1) * 3) + 2];
num1 += num4 & InfCodes.inflate_mask[num3];
num3 = numArray1[(num2 + num1) * 3];
goto Label_018B;
}
z.msg = "invalid distance code";
num12 = z.avail_in - num7;
num12 = ((num5 >> 3) < num12) ? (num5 >> 3) : num12;
num7 += num12;
num6 -= num12;
num5 -= num12 << 3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(-3);
}
Label_05E0:
if ((num9 < 0x102) || (num7 < 10))
{
num12 = z.avail_in - num7;
num12 = ((num5 >> 3) < num12) ? (num5 >> 3) : num12;
num7 += num12;
num6 -= num12;
num5 -= num12 << 3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return(0);
}
goto Label_0092;
}
internal int proc(InfBlocks s, ZStream z, int r)
{
int num1;
int num10;
int num4 = 0;
int num5 = 0;
int num6 = 0;
num6 = z.next_in_index;
int num7 = z.avail_in;
num4 = s.bitb;
num5 = s.bitk;
int num8 = s.write;
int num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
Label_0051:
switch (this.mode)
{
case 0:
if ((num9 < 0x102) || (num7 < 10))
{
break;
}
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
r = this.inflate_fast(this.lbits, this.dbits, this.ltree, this.ltree_index, this.dtree, this.dtree_index, s, z);
num6 = z.next_in_index;
num7 = z.avail_in;
num4 = s.bitb;
num5 = s.bitk;
num8 = s.write;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
if (r == 0)
{
break;
}
this.mode = (r == 1) ? 7 : 9;
goto Label_0051;
case 1:
goto Label_0199;
case 2:
num1 = this.get_Renamed;
while (num5 < num1)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
this.len += num4 & InfCodes.inflate_mask[num1];
num4 = num4 >> (num1 & 0x1f);
num5 -= num1;
this.need = this.dbits;
this.tree = this.dtree;
this.tree_index = this.dtree_index;
this.mode = 3;
goto Label_0412;
case 3:
goto Label_0412;
case 4:
num1 = this.get_Renamed;
while (num5 < num1)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
this.dist += num4 & InfCodes.inflate_mask[num1];
num4 = num4 >> (num1 & 0x1f);
num5 -= num1;
this.mode = 5;
goto Label_0635;
case 5:
goto Label_0635;
case 6:
if (num9 == 0)
{
if ((num8 == s.end) && (s.read != 0))
{
num8 = 0;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
}
if (num9 == 0)
{
s.write = num8;
r = s.inflate_flush(z, r);
num8 = s.write;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
if ((num8 == s.end) && (s.read != 0))
{
num8 = 0;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
}
if (num9 == 0)
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}
}
}
r = 0;
s.window[num8++] = (byte) this.lit;
num9--;
this.mode = 0;
goto Label_0051;
case 7:
if (num5 > 7)
{
num5 -= 8;
num7++;
num6--;
}
s.write = num8;
r = s.inflate_flush(z, r);
num8 = s.write;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
if (s.read != s.write)
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}
this.mode = 8;
goto Label_098A;
case 8:
goto Label_098A;
case 9:
r = -3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
default:
r = -2;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}
this.need = this.lbits;
this.tree = this.ltree;
this.tree_index = this.ltree_index;
this.mode = 1;
Label_0199:
num1 = this.need;
while (num5 < num1)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
int num2 = (this.tree_index + (num4 & InfCodes.inflate_mask[num1])) * 3;
num4 = SupportClass.URShift(num4, this.tree[num2 + 1]);
num5 -= this.tree[num2 + 1];
int num3 = this.tree[num2];
if (num3 == 0)
{
this.lit = this.tree[num2 + 2];
this.mode = 6;
goto Label_0051;
}
if ((num3 & 0x10) != 0)
{
this.get_Renamed = num3 & 15;
this.len = this.tree[num2 + 2];
this.mode = 2;
goto Label_0051;
}
if ((num3 & 0x40) == 0)
{
this.need = num3;
this.tree_index = (num2 / 3) + this.tree[num2 + 2];
goto Label_0051;
}
if ((num3 & 0x20) != 0)
{
this.mode = 7;
goto Label_0051;
}
this.mode = 9;
z.msg = "invalid literal/length code";
r = -3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
Label_0412:
num1 = this.need;
while (num5 < num1)
{
if (num7 != 0)
{
r = 0;
}
else
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}
num7--;
num4 |= (z.next_in[num6++] & 0xff) << (num5 & 0x1f);
num5 += 8;
}
num2 = (this.tree_index + (num4 & InfCodes.inflate_mask[num1])) * 3;
num4 = num4 >> (this.tree[num2 + 1] & 0x1f);
num5 -= this.tree[num2 + 1];
num3 = this.tree[num2];
if ((num3 & 0x10) != 0)
{
this.get_Renamed = num3 & 15;
this.dist = this.tree[num2 + 2];
this.mode = 4;
goto Label_0051;
}
if ((num3 & 0x40) == 0)
{
this.need = num3;
this.tree_index = (num2 / 3) + this.tree[num2 + 2];
goto Label_0051;
}
this.mode = 9;
z.msg = "invalid distance code";
r = -3;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
Label_0635:
num10 = num8 - this.dist;
while (num10 < 0)
{
num10 += s.end;
}
while (this.len != 0)
{
if (num9 == 0)
{
if ((num8 == s.end) && (s.read != 0))
{
num8 = 0;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
}
if (num9 == 0)
{
s.write = num8;
r = s.inflate_flush(z, r);
num8 = s.write;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
if ((num8 == s.end) && (s.read != 0))
{
num8 = 0;
num9 = (num8 < s.read) ? ((s.read - num8) - 1) : (s.end - num8);
}
if (num9 == 0)
{
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}
}
}
s.window[num8++] = s.window[num10++];
num9--;
if (num10 == s.end)
{
num10 = 0;
}
this.len--;
}
this.mode = 0;
goto Label_0051;
Label_098A:
r = 1;
s.bitb = num4;
s.bitk = num5;
z.avail_in = num7;
z.total_in += num6 - z.next_in_index;
z.next_in_index = num6;
s.write = num8;
return s.inflate_flush(z, r);
}