mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-07-11 22:54:34 +00:00
Updating libpng to v1.5.14 and zlib to v1.2.7
Since libpng has a dependency upon zlib, both updates were combined for one commit/pull-request.
This commit is contained in:
thecelloman
parent
845931296e
commit
4fdfb47f41
228 changed files with 49793 additions and 25598 deletions
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@ -1,5 +1,5 @@
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/* infback.c -- inflate using a call-back interface
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* Copyright (C) 1995-2005 Mark Adler
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* Copyright (C) 1995-2011 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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@ -42,10 +42,19 @@ int stream_size;
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return Z_STREAM_ERROR;
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strm->msg = Z_NULL; /* in case we return an error */
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if (strm->zalloc == (alloc_func)0) {
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#ifdef Z_SOLO
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return Z_STREAM_ERROR;
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#else
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strm->zalloc = zcalloc;
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strm->opaque = (voidpf)0;
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#endif
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}
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if (strm->zfree == (free_func)0) strm->zfree = zcfree;
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if (strm->zfree == (free_func)0)
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#ifdef Z_SOLO
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return Z_STREAM_ERROR;
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#else
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strm->zfree = zcfree;
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#endif
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state = (struct inflate_state FAR *)ZALLOC(strm, 1,
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sizeof(struct inflate_state));
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if (state == Z_NULL) return Z_MEM_ERROR;
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@ -55,7 +64,7 @@ int stream_size;
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state->wbits = windowBits;
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state->wsize = 1U << windowBits;
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state->window = window;
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state->write = 0;
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state->wnext = 0;
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state->whave = 0;
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return Z_OK;
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}
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@ -253,7 +262,7 @@ void FAR *out_desc;
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unsigned bits; /* bits in bit buffer */
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unsigned copy; /* number of stored or match bytes to copy */
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unsigned char FAR *from; /* where to copy match bytes from */
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code this; /* current decoding table entry */
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code here; /* current decoding table entry */
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code last; /* parent table entry */
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unsigned len; /* length to copy for repeats, bits to drop */
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int ret; /* return code */
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@ -389,19 +398,18 @@ void FAR *out_desc;
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state->have = 0;
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while (state->have < state->nlen + state->ndist) {
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for (;;) {
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this = state->lencode[BITS(state->lenbits)];
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if ((unsigned)(this.bits) <= bits) break;
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here = state->lencode[BITS(state->lenbits)];
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if ((unsigned)(here.bits) <= bits) break;
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PULLBYTE();
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}
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if (this.val < 16) {
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NEEDBITS(this.bits);
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DROPBITS(this.bits);
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state->lens[state->have++] = this.val;
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if (here.val < 16) {
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DROPBITS(here.bits);
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state->lens[state->have++] = here.val;
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}
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else {
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if (this.val == 16) {
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NEEDBITS(this.bits + 2);
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DROPBITS(this.bits);
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if (here.val == 16) {
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NEEDBITS(here.bits + 2);
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DROPBITS(here.bits);
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if (state->have == 0) {
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strm->msg = (char *)"invalid bit length repeat";
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state->mode = BAD;
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@ -411,16 +419,16 @@ void FAR *out_desc;
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copy = 3 + BITS(2);
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DROPBITS(2);
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}
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else if (this.val == 17) {
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NEEDBITS(this.bits + 3);
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DROPBITS(this.bits);
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else if (here.val == 17) {
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NEEDBITS(here.bits + 3);
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DROPBITS(here.bits);
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len = 0;
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copy = 3 + BITS(3);
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DROPBITS(3);
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}
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else {
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NEEDBITS(this.bits + 7);
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DROPBITS(this.bits);
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NEEDBITS(here.bits + 7);
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DROPBITS(here.bits);
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len = 0;
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copy = 11 + BITS(7);
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DROPBITS(7);
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@ -438,7 +446,16 @@ void FAR *out_desc;
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/* handle error breaks in while */
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if (state->mode == BAD) break;
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/* build code tables */
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/* check for end-of-block code (better have one) */
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if (state->lens[256] == 0) {
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strm->msg = (char *)"invalid code -- missing end-of-block";
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state->mode = BAD;
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break;
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}
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/* build code tables -- note: do not change the lenbits or distbits
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values here (9 and 6) without reading the comments in inftrees.h
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concerning the ENOUGH constants, which depend on those values */
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state->next = state->codes;
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state->lencode = (code const FAR *)(state->next);
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state->lenbits = 9;
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@ -474,28 +491,28 @@ void FAR *out_desc;
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/* get a literal, length, or end-of-block code */
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for (;;) {
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this = state->lencode[BITS(state->lenbits)];
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if ((unsigned)(this.bits) <= bits) break;
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here = state->lencode[BITS(state->lenbits)];
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if ((unsigned)(here.bits) <= bits) break;
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PULLBYTE();
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}
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if (this.op && (this.op & 0xf0) == 0) {
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last = this;
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if (here.op && (here.op & 0xf0) == 0) {
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last = here;
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for (;;) {
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this = state->lencode[last.val +
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here = state->lencode[last.val +
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(BITS(last.bits + last.op) >> last.bits)];
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if ((unsigned)(last.bits + this.bits) <= bits) break;
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if ((unsigned)(last.bits + here.bits) <= bits) break;
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PULLBYTE();
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}
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DROPBITS(last.bits);
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}
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DROPBITS(this.bits);
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state->length = (unsigned)this.val;
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DROPBITS(here.bits);
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state->length = (unsigned)here.val;
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/* process literal */
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if (this.op == 0) {
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Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
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if (here.op == 0) {
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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", this.val));
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"inflate: literal 0x%02x\n", here.val));
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ROOM();
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*put++ = (unsigned char)(state->length);
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left--;
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@ -504,21 +521,21 @@ void FAR *out_desc;
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}
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/* process end of block */
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if (this.op & 32) {
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if (here.op & 32) {
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Tracevv((stderr, "inflate: end of block\n"));
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state->mode = TYPE;
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break;
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}
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/* invalid code */
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if (this.op & 64) {
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if (here.op & 64) {
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strm->msg = (char *)"invalid literal/length code";
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state->mode = BAD;
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break;
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}
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/* length code -- get extra bits, if any */
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state->extra = (unsigned)(this.op) & 15;
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state->extra = (unsigned)(here.op) & 15;
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if (state->extra != 0) {
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NEEDBITS(state->extra);
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state->length += BITS(state->extra);
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@ -528,30 +545,30 @@ void FAR *out_desc;
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/* get distance code */
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for (;;) {
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this = state->distcode[BITS(state->distbits)];
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if ((unsigned)(this.bits) <= bits) break;
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here = state->distcode[BITS(state->distbits)];
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if ((unsigned)(here.bits) <= bits) break;
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PULLBYTE();
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}
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if ((this.op & 0xf0) == 0) {
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last = this;
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if ((here.op & 0xf0) == 0) {
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last = here;
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for (;;) {
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this = state->distcode[last.val +
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here = state->distcode[last.val +
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(BITS(last.bits + last.op) >> last.bits)];
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if ((unsigned)(last.bits + this.bits) <= bits) break;
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if ((unsigned)(last.bits + here.bits) <= bits) break;
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PULLBYTE();
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}
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DROPBITS(last.bits);
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}
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DROPBITS(this.bits);
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if (this.op & 64) {
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DROPBITS(here.bits);
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if (here.op & 64) {
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strm->msg = (char *)"invalid distance code";
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state->mode = BAD;
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break;
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}
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state->offset = (unsigned)this.val;
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state->offset = (unsigned)here.val;
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/* get distance extra bits, if any */
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state->extra = (unsigned)(this.op) & 15;
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state->extra = (unsigned)(here.op) & 15;
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if (state->extra != 0) {
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NEEDBITS(state->extra);
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state->offset += BITS(state->extra);
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