mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-07-16 00:54:54 +00:00
upgrade zlib to 1.3.1
This commit is contained in:
AzaezelX
parent
ed717abaf7
commit
8a54622bd7
202 changed files with 55552 additions and 4014 deletions
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@ -1,5 +1,5 @@
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/* inffast.c -- fast decoding
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* Copyright (C) 1995-2008, 2010 Mark Adler
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* Copyright (C) 1995-2017 Mark Adler
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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@ -8,26 +8,9 @@
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#include "inflate.h"
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#include "inffast.h"
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#ifndef ASMINF
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/* Allow machine dependent optimization for post-increment or pre-increment.
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Based on testing to date,
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Pre-increment preferred for:
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- PowerPC G3 (Adler)
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- MIPS R5000 (Randers-Pehrson)
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Post-increment preferred for:
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- none
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No measurable difference:
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- Pentium III (Anderson)
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- M68060 (Nikl)
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*/
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#ifdef POSTINC
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# define OFF 0
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# define PUP(a) *(a)++
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#ifdef ASMINF
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# pragma message("Assembler code may have bugs -- use at your own risk")
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#else
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# define OFF 1
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# define PUP(a) *++(a)
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#endif
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/*
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Decode literal, length, and distance codes and write out the resulting
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@ -64,13 +47,10 @@
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requires strm->avail_out >= 258 for each loop to avoid checking for
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output space.
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*/
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void ZLIB_INTERNAL inflate_fast(strm, start)
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z_streamp strm;
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unsigned start; /* inflate()'s starting value for strm->avail_out */
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{
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void ZLIB_INTERNAL inflate_fast(z_streamp strm, unsigned start) {
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struct inflate_state FAR *state;
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unsigned char FAR *in; /* local strm->next_in */
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unsigned char FAR *last; /* while in < last, enough input available */
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z_const unsigned char FAR *in; /* local strm->next_in */
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z_const unsigned char FAR *last; /* have enough input while in < last */
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unsigned char FAR *out; /* local strm->next_out */
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unsigned char FAR *beg; /* inflate()'s initial strm->next_out */
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unsigned char FAR *end; /* while out < end, enough space available */
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@ -87,7 +67,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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code const FAR *dcode; /* local strm->distcode */
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unsigned lmask; /* mask for first level of length codes */
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unsigned dmask; /* mask for first level of distance codes */
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code here; /* retrieved table entry */
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code const *here; /* retrieved table entry */
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unsigned op; /* code bits, operation, extra bits, or */
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/* window position, window bytes to copy */
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unsigned len; /* match length, unused bytes */
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@ -96,9 +76,9 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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/* copy state to local variables */
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state = (struct inflate_state FAR *)strm->state;
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in = strm->next_in - OFF;
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in = strm->next_in;
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last = in + (strm->avail_in - 5);
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out = strm->next_out - OFF;
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out = strm->next_out;
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beg = out - (start - strm->avail_out);
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end = out + (strm->avail_out - 257);
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#ifdef INFLATE_STRICT
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@ -119,29 +99,29 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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input data or output space */
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do {
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if (bits < 15) {
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hold += (unsigned long)(PUP(in)) << bits;
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hold += (unsigned long)(*in++) << bits;
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bits += 8;
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hold += (unsigned long)(PUP(in)) << bits;
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hold += (unsigned long)(*in++) << bits;
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bits += 8;
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}
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here = lcode[hold & lmask];
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here = lcode + (hold & lmask);
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dolen:
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op = (unsigned)(here.bits);
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op = (unsigned)(here->bits);
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hold >>= op;
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bits -= op;
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op = (unsigned)(here.op);
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op = (unsigned)(here->op);
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if (op == 0) { /* literal */
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Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
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Tracevv((stderr, here->val >= 0x20 && here->val < 0x7f ?
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"inflate: literal '%c'\n" :
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"inflate: literal 0x%02x\n", here.val));
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PUP(out) = (unsigned char)(here.val);
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"inflate: literal 0x%02x\n", here->val));
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*out++ = (unsigned char)(here->val);
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}
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else if (op & 16) { /* length base */
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len = (unsigned)(here.val);
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len = (unsigned)(here->val);
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op &= 15; /* number of extra bits */
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if (op) {
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if (bits < op) {
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hold += (unsigned long)(PUP(in)) << bits;
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hold += (unsigned long)(*in++) << bits;
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bits += 8;
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}
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len += (unsigned)hold & ((1U << op) - 1);
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@ -150,25 +130,25 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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}
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Tracevv((stderr, "inflate: length %u\n", len));
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if (bits < 15) {
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hold += (unsigned long)(PUP(in)) << bits;
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hold += (unsigned long)(*in++) << bits;
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bits += 8;
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hold += (unsigned long)(PUP(in)) << bits;
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hold += (unsigned long)(*in++) << bits;
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bits += 8;
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}
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here = dcode[hold & dmask];
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here = dcode + (hold & dmask);
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dodist:
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op = (unsigned)(here.bits);
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op = (unsigned)(here->bits);
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hold >>= op;
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bits -= op;
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op = (unsigned)(here.op);
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op = (unsigned)(here->op);
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if (op & 16) { /* distance base */
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dist = (unsigned)(here.val);
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dist = (unsigned)(here->val);
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op &= 15; /* number of extra bits */
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if (bits < op) {
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hold += (unsigned long)(PUP(in)) << bits;
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hold += (unsigned long)(*in++) << bits;
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bits += 8;
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if (bits < op) {
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hold += (unsigned long)(PUP(in)) << bits;
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hold += (unsigned long)(*in++) << bits;
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bits += 8;
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}
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}
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@ -190,36 +170,36 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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if (state->sane) {
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strm->msg =
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(char *)"invalid distance too far back";
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state->mode = BAD;
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break;
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}
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state->mode = BAD;
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break;
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}
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#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
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if (len <= op - whave) {
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do {
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PUP(out) = 0;
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*out++ = 0;
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} while (--len);
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continue;
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}
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len -= op - whave;
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do {
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PUP(out) = 0;
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*out++ = 0;
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} while (--op > whave);
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if (op == 0) {
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from = out - dist;
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do {
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PUP(out) = PUP(from);
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*out++ = *from++;
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} while (--len);
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continue;
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}
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#endif
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}
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from = window - OFF;
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from = window;
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if (wnext == 0) { /* very common case */
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from += wsize - op;
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if (op < len) { /* some from window */
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len -= op;
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do {
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PUP(out) = PUP(from);
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*out++ = *from++;
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} while (--op);
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from = out - dist; /* rest from output */
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}
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@ -230,14 +210,14 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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if (op < len) { /* some from end of window */
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len -= op;
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do {
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PUP(out) = PUP(from);
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*out++ = *from++;
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} while (--op);
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from = window - OFF;
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from = window;
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if (wnext < len) { /* some from start of window */
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op = wnext;
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len -= op;
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do {
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PUP(out) = PUP(from);
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*out++ = *from++;
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} while (--op);
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from = out - dist; /* rest from output */
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}
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@ -248,40 +228,40 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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if (op < len) { /* some from window */
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len -= op;
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do {
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PUP(out) = PUP(from);
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*out++ = *from++;
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} while (--op);
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from = out - dist; /* rest from output */
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}
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}
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while (len > 2) {
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PUP(out) = PUP(from);
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PUP(out) = PUP(from);
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PUP(out) = PUP(from);
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*out++ = *from++;
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*out++ = *from++;
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*out++ = *from++;
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len -= 3;
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}
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if (len) {
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PUP(out) = PUP(from);
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*out++ = *from++;
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if (len > 1)
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PUP(out) = PUP(from);
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*out++ = *from++;
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}
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}
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else {
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from = out - dist; /* copy direct from output */
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do { /* minimum length is three */
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PUP(out) = PUP(from);
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PUP(out) = PUP(from);
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PUP(out) = PUP(from);
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*out++ = *from++;
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*out++ = *from++;
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*out++ = *from++;
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len -= 3;
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} while (len > 2);
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if (len) {
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PUP(out) = PUP(from);
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*out++ = *from++;
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if (len > 1)
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PUP(out) = PUP(from);
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*out++ = *from++;
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}
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}
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}
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else if ((op & 64) == 0) { /* 2nd level distance code */
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here = dcode[here.val + (hold & ((1U << op) - 1))];
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here = dcode + here->val + (hold & ((1U << op) - 1));
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goto dodist;
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}
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else {
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@ -291,7 +271,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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}
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}
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else if ((op & 64) == 0) { /* 2nd level length code */
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here = lcode[here.val + (hold & ((1U << op) - 1))];
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here = lcode + here->val + (hold & ((1U << op) - 1));
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goto dolen;
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}
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else if (op & 32) { /* end-of-block */
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@ -313,8 +293,8 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
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hold &= (1U << bits) - 1;
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/* update state and return */
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strm->next_in = in + OFF;
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strm->next_out = out + OFF;
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strm->next_in = in;
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strm->next_out = out;
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strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last));
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strm->avail_out = (unsigned)(out < end ?
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257 + (end - out) : 257 - (out - end));
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