diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/liblzf/lzf.h | 37 | ||||
| -rw-r--r-- | src/liblzf/lzfP.h | 68 | ||||
| -rw-r--r-- | src/liblzf/lzf_c.c | 288 | ||||
| -rw-r--r-- | src/liblzf/lzf_d.c | 70 | ||||
| -rw-r--r-- | src/libpng/png.c | 22 | ||||
| -rw-r--r-- | src/libpng/png.h | 231 | ||||
| -rw-r--r-- | src/libpng/pngconf.h | 96 | ||||
| -rw-r--r-- | src/libpng/pngerror.c | 5 | ||||
| -rw-r--r-- | src/libpng/pngget.c | 8 | ||||
| -rw-r--r-- | src/libpng/pngmem.c | 5 | ||||
| -rw-r--r-- | src/libpng/pngpread.c | 7 | ||||
| -rw-r--r-- | src/libpng/pngread.c | 7 | ||||
| -rw-r--r-- | src/libpng/pngrio.c | 5 | ||||
| -rw-r--r-- | src/libpng/pngrtran.c | 25 | ||||
| -rw-r--r-- | src/libpng/pngrutil.c | 20 | ||||
| -rw-r--r-- | src/libpng/pngset.c | 28 | ||||
| -rw-r--r-- | src/libpng/pngtrans.c | 9 | ||||
| -rw-r--r-- | src/libpng/pngwio.c | 5 | ||||
| -rw-r--r-- | src/libpng/pngwrite.c | 5 | ||||
| -rw-r--r-- | src/libpng/pngwtran.c | 5 | ||||
| -rw-r--r-- | src/libpng/pngwutil.c | 24 | ||||
| -rw-r--r-- | src/lua5/imlua_image.c | 3 |
22 files changed, 585 insertions, 388 deletions
diff --git a/src/liblzf/lzf.h b/src/liblzf/lzf.h index 8538609..919b6e6 100644 --- a/src/liblzf/lzf.h +++ b/src/liblzf/lzf.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Marc Alexander Lehmann <schmorp@schmorp.de> + * Copyright (c) 2000-2008 Marc Alexander Lehmann <schmorp@schmorp.de> * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: @@ -11,9 +11,6 @@ * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO @@ -26,14 +23,15 @@ * OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License version 2 (the "GPL"), in which case the - * provisions of the GPL are applicable instead of the above. If you wish to - * allow the use of your version of this file only under the terms of the - * GPL and not to allow others to use your version of this file under the - * BSD license, indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by the GPL. If - * you do not delete the provisions above, a recipient may use your version - * of this file under either the BSD or the GPL. + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. */ #ifndef LZF_H @@ -48,21 +46,22 @@ ** ***********************************************************************/ -#define LZF_VERSION 0x0105 /* 1.5 */ +#define LZF_VERSION 0x0105 /* 1.5, API version */ /* * Compress in_len bytes stored at the memory block starting at * in_data and write the result to out_data, up to a maximum length * of out_len bytes. * - * If the output buffer is not large enough or any error occurs - * return 0, otherwise return the number of bytes used (which might - * be considerably larger than in_len, so it makes sense to always - * use out_len == in_len - 1), to ensure _some_ compression, and store - * the data uncompressed otherwise. + * If the output buffer is not large enough or any error occurs return 0, + * otherwise return the number of bytes used, which might be considerably + * more than in_len (but less than 104% of the original size), so it + * makes sense to always use out_len == in_len - 1), to ensure _some_ + * compression, and store the data uncompressed otherwise (with a flag, of + * course. * * lzf_compress might use different algorithms on different systems and - * even diferent runs, thus might result in different compressed strings + * even different runs, thus might result in different compressed strings * depending on the phase of the moon or similar factors. However, all * these strings are architecture-independent and will result in the * original data when decompressed using lzf_decompress. diff --git a/src/liblzf/lzfP.h b/src/liblzf/lzfP.h index 48963b2..d533f18 100644 --- a/src/liblzf/lzfP.h +++ b/src/liblzf/lzfP.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Marc Alexander Lehmann <schmorp@schmorp.de> + * Copyright (c) 2000-2007 Marc Alexander Lehmann <schmorp@schmorp.de> * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: @@ -11,9 +11,6 @@ * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO @@ -26,14 +23,15 @@ * OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License version 2 (the "GPL"), in which case the - * provisions of the GPL are applicable instead of the above. If you wish to - * allow the use of your version of this file only under the terms of the - * GPL and not to allow others to use your version of this file under the - * BSD license, indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by the GPL. If - * you do not delete the provisions above, a recipient may use your version - * of this file under either the BSD or the GPL. + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. */ #ifndef LZFP_h @@ -46,29 +44,28 @@ #endif /* - * size of hashtable is (1 << HLOG) * sizeof (char *) + * Size of hashtable is (1 << HLOG) * sizeof (char *) * decompression is independent of the hash table size * the difference between 15 and 14 is very small - * for small blocks (and 14 is usually a but faster). + * for small blocks (and 14 is usually a bit faster). * For a low-memory/faster configuration, use HLOG == 13; - * For best compression, use 15 or 16 (or more). + * For best compression, use 15 or 16 (or more, up to 23). */ #ifndef HLOG -# define HLOG 14 +# define HLOG 16 #endif /* - * sacrifice very little compression quality in favour of compression speed. + * Sacrifice very little compression quality in favour of compression speed. * This gives almost the same compression as the default code, and is - * (very roughly) 15% faster. This is the preferable mode of operation. + * (very roughly) 15% faster. This is the preferred mode of operation. */ - #ifndef VERY_FAST # define VERY_FAST 1 #endif /* - * sacrifice some more compression quality in favour of compression speed. + * Sacrifice some more compression quality in favour of compression speed. * (roughly 1-2% worse compression for large blocks and * 9-10% for small, redundant, blocks and >>20% better speed in both cases) * In short: when in need for speed, enable this for binary data, @@ -79,30 +76,23 @@ #endif /* - * unconditionally aligning does not cost very much, so do it if unsure + * Unconditionally aligning does not cost very much, so do it if unsure */ #ifndef STRICT_ALIGN # define STRICT_ALIGN !(defined(__i386) || defined (__amd64)) #endif /* - * use string functions to copy memory. - * this is usually a loss, even with glibc's optimized memcpy - */ -#ifndef USE_MEMCPY -# define USE_MEMCPY 0 -#endif - -/* - * you may choose to pre-set the hash table (might be faster on some - * modern cpus and large (>>64k) blocks) + * You may choose to pre-set the hash table (might be faster on some + * modern cpus and large (>>64k) blocks, and also makes compression + * deterministic/repeatable when the configuration otherwise is the same). */ #ifndef INIT_HTAB # define INIT_HTAB 0 #endif /* - * avoid assigning values to errno variable? for some embedding purposes + * Avoid assigning values to errno variable? for some embedding purposes * (linux kernel for example), this is neccessary. NOTE: this breaks * the documentation in lzf.h. */ @@ -119,6 +109,18 @@ # define LZF_STATE_ARG 0 #endif +/* + * Wether to add extra checks for input validity in lzf_decompress + * and return EINVAL if the input stream has been corrupted. This + * only shields against overflowing the input buffer and will not + * detect most corrupted streams. + * This check is not normally noticable on modern hardware + * (<1% slowdown), but might slow down older cpus considerably. + */ +#ifndef CHECK_INPUT +# define CHECK_INPUT 1 +#endif + /*****************************************************************************/ /* nothing should be changed below */ @@ -145,7 +147,7 @@ typedef const u8 *LZF_STATE[1 << (HLOG)]; # endif #endif -#if USE_MEMCPY || INIT_HTAB +#if INIT_HTAB # ifdef __cplusplus # include <cstring> # else diff --git a/src/liblzf/lzf_c.c b/src/liblzf/lzf_c.c index b9b9ef9..0b5d816 100644 --- a/src/liblzf/lzf_c.c +++ b/src/liblzf/lzf_c.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Marc Alexander Lehmann <schmorp@schmorp.de> + * Copyright (c) 2000-2008 Marc Alexander Lehmann <schmorp@schmorp.de> * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: @@ -11,9 +11,6 @@ * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO @@ -26,14 +23,15 @@ * OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License version 2 (the "GPL"), in which case the - * provisions of the GPL are applicable instead of the above. If you wish to - * allow the use of your version of this file only under the terms of the - * GPL and not to allow others to use your version of this file under the - * BSD license, indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by the GPL. If - * you do not delete the provisions above, a recipient may use your version - * of this file under either the BSD or the GPL. + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. */ #include "lzfP.h" @@ -49,12 +47,18 @@ #ifndef FRST # define FRST(p) (((p[0]) << 8) | p[1]) # define NEXT(v,p) (((v) << 8) | p[2]) -# define IDX(h) ((((h ^ (h << 5)) >> (3*8 - HLOG)) - h*5) & (HSIZE - 1)) +# if ULTRA_FAST +# define IDX(h) ((( h >> (3*8 - HLOG)) - h ) & (HSIZE - 1)) +# elif VERY_FAST +# define IDX(h) ((( h >> (3*8 - HLOG)) - h*5) & (HSIZE - 1)) +# else +# define IDX(h) ((((h ^ (h << 5)) >> (3*8 - HLOG)) - h*5) & (HSIZE - 1)) +# endif #endif /* * IDX works because it is very similar to a multiplicative hash, e.g. * ((h * 57321 >> (3*8 - HLOG)) & (HSIZE - 1)) - * the latter is also quite fast on newer CPUs, and sligthly better + * the latter is also quite fast on newer CPUs, and compresses similarly. * * the next one is also quite good, albeit slow ;) * (int)(cos(h & 0xffffff) * 1e6) @@ -69,7 +73,18 @@ #define MAX_LIT (1 << 5) #define MAX_OFF (1 << 13) -#define MAX_REF ((1 << 8) + (1 << 3)) +#define MAX_REF ((1 << 8) + (1 << 3)) + +#if __GNUC__ >= 3 +# define expect(expr,value) __builtin_expect ((expr),(value)) +# define inline inline +#else +# define expect(expr,value) (expr) +# define inline static +#endif + +#define expect_false(expr) expect ((expr) != 0, 0) +#define expect_true(expr) expect ((expr) != 0, 1) /* * compressed format @@ -84,7 +99,7 @@ unsigned int lzf_compress (const void *const in_data, unsigned int in_len, void *out_data, unsigned int out_len #if LZF_STATE_ARG - , LZF_STATE *htab + , LZF_STATE htab #endif ) { @@ -98,145 +113,184 @@ lzf_compress (const void *const in_data, unsigned int in_len, u8 *out_end = op + out_len; const u8 *ref; - unsigned int hval = FRST (ip); + /* off requires a type wide enough to hold a general pointer difference. + * ISO C doesn't have that (size_t might not be enough and ptrdiff_t only + * works for differences within a single object). We also assume that no + * no bit pattern traps. Since the only platform that is both non-POSIX + * and fails to support both assumptions is windows 64 bit, we make a + * special workaround for it. + */ +#if defined (WIN32) && defined (_M_X64) + unsigned _int64 off; /* workaround for missing POSIX compliance */ +#else unsigned long off; - int lit = 0; +#endif + unsigned int hval; + int lit; + + if (!in_len || !out_len) + return 0; #if INIT_HTAB -# if USE_MEMCPY - memset (htab, 0, sizeof (htab)); -# else - for (hslot = htab; hslot < htab + HSIZE; hslot++) - *hslot++ = ip; + memset (htab, 0, sizeof (htab)); +# if 0 + for (hslot = htab; hslot < htab + HSIZE; hslot++) + *hslot++ = ip; # endif #endif - for (;;) + lit = 0; op++; /* start run */ + + hval = FRST (ip); + while (ip < in_end - 2) { - if (ip < in_end - 2) - { - hval = NEXT (hval, ip); - hslot = htab + IDX (hval); - ref = *hslot; *hslot = ip; + hval = NEXT (hval, ip); + hslot = htab + IDX (hval); + ref = *hslot; *hslot = ip; - if (1 -#if INIT_HTAB && !USE_MEMCPY - && ref < ip /* the next test will actually take care of this, but this is faster */ + if (1 +#if INIT_HTAB + && ref < ip /* the next test will actually take care of this, but this is faster */ #endif - && (off = ip - ref - 1) < MAX_OFF - && ip + 4 < in_end - && ref > (u8 *)in_data + && (off = ip - ref - 1) < MAX_OFF + && ip + 4 < in_end + && ref > (u8 *)in_data #if STRICT_ALIGN - && ref[0] == ip[0] - && ref[1] == ip[1] - && ref[2] == ip[2] + && ref[0] == ip[0] + && ref[1] == ip[1] + && ref[2] == ip[2] #else - && *(u16 *)ref == *(u16 *)ip - && ref[2] == ip[2] + && *(u16 *)ref == *(u16 *)ip + && ref[2] == ip[2] #endif - ) + ) + { + /* match found at *ref++ */ + unsigned int len = 2; + unsigned int maxlen = in_end - ip - len; + maxlen = maxlen > MAX_REF ? MAX_REF : maxlen; + + if (expect_false (op + 3 + 1 >= out_end)) /* first a faster conservative test */ + if (op - !lit + 3 + 1 >= out_end) /* second the exact but rare test */ + return 0; + + op [- lit - 1] = lit - 1; /* stop run */ + op -= !lit; /* undo run if length is zero */ + + for (;;) { - /* match found at *ref++ */ - unsigned int len = 2; - unsigned int maxlen = in_end - ip - len; - maxlen = maxlen > MAX_REF ? MAX_REF : maxlen; + if (expect_true (maxlen > 16)) + { + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; - if (op + lit + 1 + 3 >= out_end) - return 0; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + len++; if (ref [len] != ip [len]) break; + } do len++; while (len < maxlen && ref[len] == ip[len]); - if (lit) - { - *op++ = lit - 1; - lit = -lit; - do - *op++ = ip[lit]; - while (++lit); - } + break; + } - len -= 2; - ip++; + len -= 2; /* len is now #octets - 1 */ + ip++; - if (len < 7) - { - *op++ = (off >> 8) + (len << 5); - } - else - { - *op++ = (off >> 8) + ( 7 << 5); - *op++ = len - 7; - } + if (len < 7) + { + *op++ = (off >> 8) + (len << 5); + } + else + { + *op++ = (off >> 8) + ( 7 << 5); + *op++ = len - 7; + } - *op++ = off; + *op++ = off; + lit = 0; op++; /* start run */ + + ip += len + 1; + + if (expect_false (ip >= in_end - 2)) + break; #if ULTRA_FAST || VERY_FAST - ip += len; -#if VERY_FAST && !ULTRA_FAST - --ip; -#endif - hval = FRST (ip); + --ip; +# if VERY_FAST && !ULTRA_FAST + --ip; +# endif + hval = FRST (ip); - hval = NEXT (hval, ip); - htab[IDX (hval)] = ip; - ip++; + hval = NEXT (hval, ip); + htab[IDX (hval)] = ip; + ip++; + +# if VERY_FAST && !ULTRA_FAST + hval = NEXT (hval, ip); + htab[IDX (hval)] = ip; + ip++; +# endif +#else + ip -= len + 1; -#if VERY_FAST && !ULTRA_FAST + do + { hval = NEXT (hval, ip); htab[IDX (hval)] = ip; ip++; -#endif -#else - do - { - hval = NEXT (hval, ip); - htab[IDX (hval)] = ip; - ip++; - } - while (len--); -#endif - continue; } + while (len--); +#endif } - else if (ip == in_end) - break; - - /* one more literal byte we must copy */ - lit++; - ip++; - - if (lit == MAX_LIT) + else { - if (op + 1 + MAX_LIT >= out_end) + /* one more literal byte we must copy */ + if (expect_false (op >= out_end)) return 0; - *op++ = MAX_LIT - 1; -#if USE_MEMCPY - memcpy (op, ip - MAX_LIT, MAX_LIT); - op += MAX_LIT; - lit = 0; -#else - lit = -lit; - do - *op++ = ip[lit]; - while (++lit); -#endif + lit++; *op++ = *ip++; + + if (expect_false (lit == MAX_LIT)) + { + op [- lit - 1] = lit - 1; /* stop run */ + lit = 0; op++; /* start run */ + } } } - if (lit) + if (op + 3 > out_end) /* at most 3 bytes can be missing here */ + return 0; + + while (ip < in_end) { - if (op + lit + 1 >= out_end) - return 0; - - *op++ = lit - 1; - lit = -lit; - do - *op++ = ip[lit]; - while (++lit); + lit++; *op++ = *ip++; + + if (expect_false (lit == MAX_LIT)) + { + op [- lit - 1] = lit - 1; /* stop run */ + lit = 0; op++; /* start run */ + } } - return op - (u8 *) out_data; + op [- lit - 1] = lit - 1; /* end run */ + op -= !lit; /* undo run if length is zero */ + + return op - (u8 *)out_data; } + diff --git a/src/liblzf/lzf_d.c b/src/liblzf/lzf_d.c index d0229d7..9e2cd82 100644 --- a/src/liblzf/lzf_d.c +++ b/src/liblzf/lzf_d.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Marc Alexander Lehmann <schmorp@schmorp.de> + * Copyright (c) 2000-2007 Marc Alexander Lehmann <schmorp@schmorp.de> * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: @@ -11,9 +11,6 @@ * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO @@ -26,14 +23,15 @@ * OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License version 2 (the "GPL"), in which case the - * provisions of the GPL are applicable instead of the above. If you wish to - * allow the use of your version of this file only under the terms of the - * GPL and not to allow others to use your version of this file under the - * BSD license, indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by the GPL. If - * you do not delete the provisions above, a recipient may use your version - * of this file under either the BSD or the GPL. + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. */ #include "lzfP.h" @@ -45,6 +43,13 @@ # define SET_ERRNO(n) errno = (n) #endif +#if (__i386 || __amd64) && __GNUC__ >= 3 +# define lzf_movsb(dst, src, len) \ + asm ("rep movsb" \ + : "=D" (dst), "=S" (src), "=c" (len) \ + : "0" (dst), "1" (src), "2" (len)); +#endif + unsigned int lzf_decompress (const void *const in_data, unsigned int in_len, void *out_data, unsigned int out_len) @@ -68,10 +73,16 @@ lzf_decompress (const void *const in_data, unsigned int in_len, return 0; } -#if USE_MEMCPY - memcpy (op, ip, ctrl); - op += ctrl; - ip += ctrl; +#if CHECK_INPUT + if (ip + ctrl > in_end) + { + SET_ERRNO (EINVAL); + return 0; + } +#endif + +#ifdef lzf_movsb + lzf_movsb (op, ip, ctrl); #else do *op++ = *ip++; @@ -84,9 +95,25 @@ lzf_decompress (const void *const in_data, unsigned int in_len, u8 *ref = op - ((ctrl & 0x1f) << 8) - 1; +#if CHECK_INPUT + if (ip >= in_end) + { + SET_ERRNO (EINVAL); + return 0; + } +#endif if (len == 7) - len += *ip++; - + { + len += *ip++; +#if CHECK_INPUT + if (ip >= in_end) + { + SET_ERRNO (EINVAL); + return 0; + } +#endif + } + ref -= *ip++; if (op + len + 2 > out_end) @@ -101,15 +128,20 @@ lzf_decompress (const void *const in_data, unsigned int in_len, return 0; } +#ifdef lzf_movsb + len += 2; + lzf_movsb (op, ref, len); +#else *op++ = *ref++; *op++ = *ref++; do *op++ = *ref++; while (--len); +#endif } } - while (op < out_end && ip < in_end); + while (ip < in_end); return op - (u8 *)out_data; } diff --git a/src/libpng/png.c b/src/libpng/png.c index 62b86e1..c1f3e3e 100644 --- a/src/libpng/png.c +++ b/src/libpng/png.c @@ -1,11 +1,14 @@ /* png.c - location for general purpose libpng functions * - * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h + * Last changed in libpng 1.2.39 [August 13, 2009] * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h */ #define PNG_INTERNAL @@ -13,7 +16,7 @@ #include "png.h" /* Generate a compiler error if there is an old png.h in the search path. */ -typedef version_1_2_37 Your_png_h_is_not_version_1_2_37; +typedef version_1_2_39 Your_png_h_is_not_version_1_2_39; /* Version information for C files. This had better match the version * string defined in png.h. */ @@ -145,7 +148,7 @@ png_check_sig(png_bytep sig, int num) #ifdef PNG_1_0_X voidpf PNGAPI #else -voidpf /* private */ +voidpf /* PRIVATE */ #endif png_zalloc(voidpf png_ptr, uInt items, uInt size) { @@ -189,7 +192,7 @@ png_zalloc(voidpf png_ptr, uInt items, uInt size) #ifdef PNG_1_0_X void PNGAPI #else -void /* private */ +void /* PRIVATE */ #endif png_zfree(voidpf png_ptr, voidpf ptr) { @@ -602,7 +605,7 @@ png_info_destroy(png_structp png_ptr, png_infop info_ptr) png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1); -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) +#if defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) if (png_ptr->num_chunk_list) { png_free(png_ptr, png_ptr->chunk_list); @@ -702,7 +705,7 @@ png_charp PNGAPI png_get_copyright(png_structp png_ptr) { png_ptr = png_ptr; /* Silence compiler warning about unused png_ptr */ - return ((png_charp) "\n libpng version 1.2.37 - June 4, 2009\n\ + return ((png_charp) "\n libpng version 1.2.39 - August 13, 2009\n\ Copyright (c) 1998-2009 Glenn Randers-Pehrson\n\ Copyright (c) 1996-1997 Andreas Dilger\n\ Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n"); @@ -825,7 +828,8 @@ png_convert_size(size_t size) * A and D, and X || Y is (X << 16) + Y. */ -void png_64bit_product (long v1, long v2, unsigned long *hi_product, +void /* PRIVATE */ +png_64bit_product (long v1, long v2, unsigned long *hi_product, unsigned long *lo_product) { int a, b, c, d; @@ -849,7 +853,7 @@ void png_64bit_product (long v1, long v2, unsigned long *hi_product, *lo_product = (unsigned long)lo; } -int /* private */ +int /* PRIVATE */ png_check_cHRM_fixed(png_structp png_ptr, png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x, png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y, diff --git a/src/libpng/png.h b/src/libpng/png.h index 8092989..f6330be 100644 --- a/src/libpng/png.h +++ b/src/libpng/png.h @@ -1,14 +1,16 @@ /* png.h - header file for PNG reference library * - * libpng version 1.2.37 - June 4, 2009 + * libpng version 1.2.39 - August 13, 2009 * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license (See LICENSE, below) + * * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.2.37 - June 4, 2009: Glenn + * libpng versions 0.97, January 1998, through 1.2.39 - August 13, 2009: Glenn * See also "Contributing Authors", below. * * Note about libpng version numbers: @@ -229,6 +231,16 @@ * 1.2.37beta01-03 13 10237 12.so.0.37[.0] * 1.2.37rc01 13 10237 12.so.0.37[.0] * 1.2.37 13 10237 12.so.0.37[.0] + * 1.2.45 10 10045 12.so.0.45[.0] + * 1.0.46 10 10046 10.so.0.46[.0] + * 1.2.38beta01 13 10238 12.so.0.38[.0] + * 1.2.38rc01-03 13 10238 12.so.0.38[.0] + * 1.0.47 10 10047 10.so.0.47[.0] + * 1.2.38 13 10238 12.so.0.38[.0] + * 1.2.39beta01-05 13 10239 12.so.0.39[.0] + * 1.2.39rc01 13 10239 12.so.0.39[.0] + * 1.0.48 10 10048 10.so.0.48[.0] + * 1.2.39 13 10239 12.so.0.39[.0] * * Henceforth the source version will match the shared-library major * and minor numbers; the shared-library major version number will be @@ -258,7 +270,9 @@ * If you modify libpng you may insert additional notices immediately following * this sentence. * - * libpng versions 1.2.6, August 15, 2004, through 1.2.37, June 4, 2009, are + * This code is released under the libpng license. + * + * libpng versions 1.2.6, August 15, 2004, through 1.2.39, August 13, 2009, are * Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are * distributed according to the same disclaimer and license as libpng-1.2.5 * with the following individual added to the list of Contributing Authors: @@ -370,13 +384,13 @@ * Y2K compliance in libpng: * ========================= * - * June 4, 2009 + * August 13, 2009 * * Since the PNG Development group is an ad-hoc body, we can't make * an official declaration. * * This is your unofficial assurance that libpng from version 0.71 and - * upward through 1.2.37 are Y2K compliant. It is my belief that earlier + * upward through 1.2.39 are Y2K compliant. It is my belief that earlier * versions were also Y2K compliant. * * Libpng only has three year fields. One is a 2-byte unsigned integer @@ -432,9 +446,9 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.2.37" +#define PNG_LIBPNG_VER_STRING "1.2.39" #define PNG_HEADER_VERSION_STRING \ - " libpng version 1.2.37 - June 4, 2009\n" + " libpng version 1.2.39 - August 13, 2009\n" #define PNG_LIBPNG_VER_SONUM 0 #define PNG_LIBPNG_VER_DLLNUM 13 @@ -442,9 +456,10 @@ /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ #define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MINOR 2 -#define PNG_LIBPNG_VER_RELEASE 37 +#define PNG_LIBPNG_VER_RELEASE 39 /* This should match the numeric part of the final component of - * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ + * PNG_LIBPNG_VER_STRING, omitting any leading zero: + */ #define PNG_LIBPNG_VER_BUILD 0 @@ -454,7 +469,7 @@ #define PNG_LIBPNG_BUILD_RC 3 #define PNG_LIBPNG_BUILD_STABLE 4 #define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7 - + /* Release-Specific Flags */ #define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with PNG_LIBPNG_BUILD_STABLE only */ @@ -469,8 +484,9 @@ * We must not include leading zeros. * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only * version 1.0.0 was mis-numbered 100 instead of 10000). From - * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */ -#define PNG_LIBPNG_VER 10237 /* 1.2.37 */ + * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release + */ +#define PNG_LIBPNG_VER 10239 /* 1.2.39 */ #ifndef PNG_VERSION_INFO_ONLY /* include the compression library's header */ @@ -485,12 +501,12 @@ /* Ref MSDN: Private as priority over Special * VS_FF_PRIVATEBUILD File *was not* built using standard release * procedures. If this value is given, the StringFileInfo block must - * contain a PrivateBuild string. + * contain a PrivateBuild string. * * VS_FF_SPECIALBUILD File *was* built by the original company using * standard release procedures but is a variation of the standard * file of the same version number. If this value is given, the - * StringFileInfo block must contain a SpecialBuild string. + * StringFileInfo block must contain a SpecialBuild string. */ #if defined(PNG_USER_PRIVATEBUILD) @@ -552,7 +568,7 @@ extern "C" { #define png_write_status_ptr_NULL NULL #endif -/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ +/* Variables declared in png.c - only it needs to define PNG_NO_EXTERN */ #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) /* Version information for C files, stored in png.c. This had better match * the version above. @@ -678,7 +694,8 @@ typedef png_text FAR * FAR * png_textpp; #endif /* Supported compression types for text in PNG files (tEXt, and zTXt). - * The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. */ + * The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. + */ #define PNG_TEXT_COMPRESSION_NONE_WR -3 #define PNG_TEXT_COMPRESSION_zTXt_WR -2 #define PNG_TEXT_COMPRESSION_NONE -1 @@ -705,7 +722,8 @@ typedef struct png_time_struct typedef png_time FAR * png_timep; typedef png_time FAR * FAR * png_timepp; -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) +#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \ + defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) /* png_unknown_chunk is a structure to hold queued chunks for which there is * no specific support. The idea is that we can use this to queue * up private chunks for output even though the library doesn't actually @@ -940,8 +958,9 @@ defined(PNG_READ_BACKGROUND_SUPPORTED) png_uint_32 free_me; /* flags items libpng is responsible for freeing */ #endif -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - /* storage for unknown chunks that the library doesn't recognize. */ +#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \ + defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) + /* Storage for unknown chunks that the library doesn't recognize. */ png_unknown_chunkp unknown_chunks; png_size_t unknown_chunks_num; #endif @@ -956,7 +975,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED) #endif #if defined(PNG_sPLT_SUPPORTED) - /* data on sPLT chunks (there may be more than one). */ + /* Data on sPLT chunks (there may be more than one). */ png_sPLT_tp splt_palettes; png_uint_32 splt_palettes_num; #endif @@ -1291,7 +1310,7 @@ struct png_struct_def #endif /* PNG_bKGD_SUPPORTED */ #if defined(PNG_WRITE_FLUSH_SUPPORTED) - png_flush_ptr output_flush_fn;/* Function for flushing output */ + png_flush_ptr output_flush_fn; /* Function for flushing output */ png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */ png_uint_32 flush_rows; /* number of rows written since last flush */ #endif @@ -1389,7 +1408,7 @@ struct png_struct_def /* New members added in libpng-1.0.6 */ #ifdef PNG_FREE_ME_SUPPORTED - png_uint_32 free_me; /* flags items libpng is responsible for freeing */ + png_uint_32 free_me; /* flags items libpng is responsible for freeing */ #endif #if defined(PNG_USER_CHUNKS_SUPPORTED) @@ -1397,7 +1416,7 @@ struct png_struct_def png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */ #endif -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED int num_chunk_list; png_bytep chunk_list; #endif @@ -1451,21 +1470,21 @@ struct png_struct_def /* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ #ifdef PNG_USER_MEM_SUPPORTED - png_voidp mem_ptr; /* user supplied struct for mem functions */ - png_malloc_ptr malloc_fn; /* function for allocating memory */ - png_free_ptr free_fn; /* function for freeing memory */ + png_voidp mem_ptr; /* user supplied struct for mem functions */ + png_malloc_ptr malloc_fn; /* function for allocating memory */ + png_free_ptr free_fn; /* function for freeing memory */ #endif /* New member added in libpng-1.0.13 and 1.2.0 */ - png_bytep big_row_buf; /* buffer to save current (unfiltered) row */ + png_bytep big_row_buf; /* buffer to save current (unfiltered) row */ #if defined(PNG_READ_DITHER_SUPPORTED) /* The following three members were added at version 1.0.14 and 1.2.4 */ - png_bytep dither_sort; /* working sort array */ - png_bytep index_to_palette; /* where the original index currently is */ - /* in the palette */ - png_bytep palette_to_index; /* which original index points to this */ - /* palette color */ + png_bytep dither_sort; /* working sort array */ + png_bytep index_to_palette; /* where the original index currently is */ + /* in the palette */ + png_bytep palette_to_index; /* which original index points to this */ + /* palette color */ #endif /* New members added in libpng-1.0.16 and 1.2.6 */ @@ -1478,7 +1497,7 @@ struct png_struct_def /* New member added in libpng-1.0.25 and 1.2.17 */ #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - /* storage for unknown chunk that the library doesn't recognize. */ + /* Storage for unknown chunk that the library doesn't recognize. */ png_unknown_chunk unknown_chunk; #endif @@ -1494,7 +1513,7 @@ struct png_struct_def /* This triggers a compiler error in png.c, if png.c and png.h * do not agree upon the version number. */ -typedef png_structp version_1_2_37; +typedef png_structp version_1_2_39; typedef png_struct FAR * FAR * png_structpp; @@ -1598,7 +1617,7 @@ extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the information before the actual image data. */ +/* Read the information before the actual image data. */ extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif @@ -1611,11 +1630,11 @@ extern PNG_EXPORT(png_charp,png_convert_to_rfc1123) #if !defined(_WIN32_WCE) /* "time.h" functions are not supported on WindowsCE */ #if defined(PNG_WRITE_tIME_SUPPORTED) -/* convert from a struct tm to png_time */ +/* Convert from a struct tm to png_time */ extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime, struct tm FAR * ttime)); -/* convert from time_t to png_time. Uses gmtime() */ +/* Convert from time_t to png_time. Uses gmtime() */ extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime, time_t ttime)); #endif /* PNG_WRITE_tIME_SUPPORTED */ @@ -1735,7 +1754,7 @@ extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr, #endif #if defined(PNG_READ_16_TO_8_SUPPORTED) -/* strip the second byte of information from a 16-bit depth file. */ +/* Strip the second byte of information from a 16-bit depth file. */ extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr)); #endif @@ -1771,74 +1790,74 @@ extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows)); extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr)); #endif -/* optional update palette with requested transformations */ +/* Optional update palette with requested transformations */ extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr)); -/* optional call to update the users info structure */ +/* Optional call to update the users info structure */ extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read one or more rows of image data. */ +/* Read one or more rows of image data. */ extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr, png_bytepp row, png_bytepp display_row, png_uint_32 num_rows)); #endif #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read a row of data. */ +/* Read a row of data. */ extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr, png_bytep row, png_bytep display_row)); #endif #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the whole image into memory at once. */ +/* Read the whole image into memory at once. */ extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr, png_bytepp image)); #endif -/* write a row of image data */ +/* Write a row of image data */ extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr, png_bytep row)); -/* write a few rows of image data */ +/* Write a few rows of image data */ extern PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr, png_bytepp row, png_uint_32 num_rows)); -/* write the image data */ +/* Write the image data */ extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr, png_bytepp image)); -/* writes the end of the PNG file. */ +/* Writes the end of the PNG file. */ extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the end of the PNG file. */ +/* Read the end of the PNG file. */ extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif -/* free any memory associated with the png_info_struct */ +/* Free any memory associated with the png_info_struct */ extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr, png_infopp info_ptr_ptr)); -/* free any memory associated with the png_struct and the png_info_structs */ +/* Free any memory associated with the png_struct and the png_info_structs */ extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)); -/* free all memory used by the read (old method - NOT DLL EXPORTED) */ +/* Free all memory used by the read (old method - NOT DLL EXPORTED) */ extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr)); -/* free any memory associated with the png_struct and the png_info_structs */ +/* Free any memory associated with the png_struct and the png_info_structs */ extern PNG_EXPORT(void,png_destroy_write_struct) PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)); -/* free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */ +/* Free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */ extern void png_write_destroy PNGARG((png_structp png_ptr)); -/* set the libpng method of handling chunk CRC errors */ +/* Set the libpng method of handling chunk CRC errors */ extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, int crit_action, int ancil_action)); @@ -1866,7 +1885,7 @@ extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, * header file (zlib.h) for an explination of the compression functions. */ -/* set the filtering method(s) used by libpng. Currently, the only valid +/* Set the filtering method(s) used by libpng. Currently, the only valid * value for "method" is 0. */ extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, @@ -2063,11 +2082,11 @@ extern PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr, png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn)); -/* returns the user pointer associated with the push read functions */ +/* Returns the user pointer associated with the push read functions */ extern PNG_EXPORT(png_voidp,png_get_progressive_ptr) PNGARG((png_structp png_ptr)); -/* function to be called when data becomes available */ +/* Function to be called when data becomes available */ extern PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr, png_infop info_ptr, png_bytep buffer, png_size_t buffer_size)); @@ -2089,7 +2108,7 @@ extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr, png_uint_32 size)); #endif -/* frees a pointer allocated by png_malloc() */ +/* Frees a pointer allocated by png_malloc() */ extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr)); #if defined(PNG_1_0_X) @@ -2106,11 +2125,12 @@ extern PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 free_me, int num)); #ifdef PNG_FREE_ME_SUPPORTED /* Reassign responsibility for freeing existing data, whether allocated - * by libpng or by the application */ + * by libpng or by the application + */ extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr, png_infop info_ptr, int freer, png_uint_32 mask)); #endif -/* assignments for png_data_freer */ +/* Assignments for png_data_freer */ #define PNG_DESTROY_WILL_FREE_DATA 1 #define PNG_SET_WILL_FREE_DATA 1 #define PNG_USER_WILL_FREE_DATA 2 @@ -2194,11 +2214,13 @@ png_infop info_ptr)); #if defined(PNG_INFO_IMAGE_SUPPORTED) /* Returns row_pointers, which is an array of pointers to scanlines that was -returned from png_read_png(). */ + * returned from png_read_png(). + */ extern PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Set row_pointers, which is an array of pointers to scanlines for use -by png_write_png(). */ + * by png_write_png(). + */ extern PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers)); #endif @@ -2499,8 +2521,8 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, #endif #endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */ -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -/* provide a list of chunks and how they are to be handled, if the built-in +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED +/* Provide a list of chunks and how they are to be handled, if the built-in handling or default unknown chunk handling is not desired. Any chunks not listed will be handled in the default manner. The IHDR and IEND chunks must not be listed. @@ -2511,6 +2533,10 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, */ extern PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp png_ptr, int keep, png_bytep chunk_list, int num_chunks)); +PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep + chunk_name)); +#endif +#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) extern PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr, png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)); extern PNG_EXPORT(void, png_set_unknown_chunk_location) @@ -2518,14 +2544,11 @@ extern PNG_EXPORT(void, png_set_unknown_chunk_location) extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp png_ptr, png_infop info_ptr, png_unknown_chunkpp entries)); #endif -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep - chunk_name)); -#endif /* Png_free_data() will turn off the "valid" flag for anything it frees. - If you need to turn it off for a chunk that your application has freed, - you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); */ + * If you need to turn it off for a chunk that your application has freed, + * you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); + */ extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr, png_infop info_ptr, int mask)); @@ -2570,8 +2593,9 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr, #endif /* PNG_DEBUG_FILE */ #if (PNG_DEBUG > 1) -/* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on - * non-ISO compilers */ +/* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on non-ISO + * compilers. + */ # ifdef __STDC__ # ifndef png_debug # define png_debug(l,m) \ @@ -2732,7 +2756,8 @@ extern PNG_EXPORT(int,png_mmx_support) PNGARG((void)); #endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ /* Strip the prepended error numbers ("#nnn ") from error and warning - * messages before passing them to the error or warning handler. */ + * messages before passing them to the error or warning handler. + */ #ifdef PNG_ERROR_NUMBERS_SUPPORTED extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp png_ptr, png_uint_32 strip_mode)); @@ -2749,7 +2774,9 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp #endif -/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */ +/* Maintainer: Put new public prototypes here ^, in libpng.3, and in + * project defs + */ #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED /* With these routines we avoid an integer divide, which will be slower on @@ -2778,7 +2805,7 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp (png_uint_32)(alpha)) + (png_uint_32)32768L); \ (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); } -#else /* standard method using integer division */ +#else /* Standard method using integer division */ # define png_composite(composite, fg, alpha, bg) \ (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \ @@ -2861,7 +2888,7 @@ extern PNG_EXPORT(void,png_save_uint_16) #define PNG_HAVE_PNG_SIGNATURE 0x1000 #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ -/* flags for the transformations the PNG library does on the image data */ +/* Flags for the transformations the PNG library does on the image data */ #define PNG_BGR 0x0001 #define PNG_INTERLACE 0x0002 #define PNG_PACK 0x0004 @@ -2895,7 +2922,7 @@ extern PNG_EXPORT(void,png_save_uint_16) /* 0x20000000L unused */ /* 0x40000000L unused */ -/* flags for png_create_struct */ +/* Flags for png_create_struct */ #define PNG_STRUCT_PNG 0x0001 #define PNG_STRUCT_INFO 0x0002 @@ -2905,7 +2932,7 @@ extern PNG_EXPORT(void,png_save_uint_16) #define PNG_COST_SHIFT 3 #define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT)) -/* flags for the png_ptr->flags rather than declaring a byte for each one */ +/* Flags for the png_ptr->flags rather than declaring a byte for each one */ #define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 #define PNG_FLAG_ZLIB_CUSTOM_LEVEL 0x0002 #define PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL 0x0004 @@ -2947,7 +2974,7 @@ extern PNG_EXPORT(void,png_save_uint_16) #define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \ PNG_FLAG_CRC_CRITICAL_MASK) -/* save typing and make code easier to understand */ +/* Save typing and make code easier to understand */ #define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \ abs((int)((c1).green) - (int)((c2).green)) + \ @@ -2960,13 +2987,14 @@ extern PNG_EXPORT(void,png_save_uint_16) (( ((width) * ((png_uint_32)(pixel_bits))) + 7) >> 3) ) /* PNG_OUT_OF_RANGE returns true if value is outside the range - ideal-delta..ideal+delta. Each argument is evaluated twice. - "ideal" and "delta" should be constants, normally simple - integers, "value" a variable. Added to libpng-1.2.6 JB */ + * ideal-delta..ideal+delta. Each argument is evaluated twice. + * "ideal" and "delta" should be constants, normally simple + * integers, "value" a variable. Added to libpng-1.2.6 JB + */ #define PNG_OUT_OF_RANGE(value, ideal, delta) \ ( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) ) -/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ +/* Variables declared in png.c - only it needs to define PNG_NO_EXTERN */ #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) /* place to hold the signature string for a PNG file. */ #ifdef PNG_USE_GLOBAL_ARRAYS @@ -3087,7 +3115,8 @@ PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr)); #endif /* Next four functions are used internally as callbacks. PNGAPI is required - * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */ + * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. + */ PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr, png_bytep data, png_size_t length)); @@ -3152,10 +3181,10 @@ PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr, PNG_EXTERN void png_flush PNGARG((png_structp png_ptr)); #endif -/* simple function to write the signature */ +/* Simple function to write the signature */ PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr)); -/* write various chunks */ +/* Write various chunks */ /* Write the IHDR chunk, and update the png_struct with the necessary * information. @@ -3307,12 +3336,12 @@ PNG_EXTERN void png_write_start_row PNGARG((png_structp png_ptr)); PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr)); #endif -/* combine a row of data, dealing with alpha, etc. if requested */ +/* Combine a row of data, dealing with alpha, etc. if requested */ PNG_EXTERN void png_combine_row PNGARG((png_structp png_ptr, png_bytep row, int mask)); #if defined(PNG_READ_INTERLACING_SUPPORTED) -/* expand an interlaced row */ +/* Expand an interlaced row */ /* OLD pre-1.0.9 interface: PNG_EXTERN void png_do_read_interlace PNGARG((png_row_infop row_info, png_bytep row, int pass, png_uint_32 transformations)); @@ -3323,12 +3352,12 @@ PNG_EXTERN void png_do_read_interlace PNGARG((png_structp png_ptr)); /* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */ #if defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* grab pixels out of a row for an interlaced pass */ +/* Grab pixels out of a row for an interlaced pass */ PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info, png_bytep row, int pass)); #endif -/* unfilter a row */ +/* Unfilter a row */ PNG_EXTERN void png_read_filter_row PNGARG((png_structp png_ptr, png_row_infop row_info, png_bytep row, png_bytep prev_row, int filter)); @@ -3339,16 +3368,16 @@ PNG_EXTERN void png_write_find_filter PNGARG((png_structp png_ptr, /* Write out the filtered row. */ PNG_EXTERN void png_write_filtered_row PNGARG((png_structp png_ptr, png_bytep filtered_row)); -/* finish a row while reading, dealing with interlacing passes, etc. */ +/* Finish a row while reading, dealing with interlacing passes, etc. */ PNG_EXTERN void png_read_finish_row PNGARG((png_structp png_ptr)); -/* initialize the row buffers, etc. */ +/* Initialize the row buffers, etc. */ PNG_EXTERN void png_read_start_row PNGARG((png_structp png_ptr)); -/* optional call to update the users info structure */ +/* Optional call to update the users info structure */ PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr, png_infop info_ptr)); -/* these are the functions that do the transformations */ +/* These are the functions that do the transformations */ #if defined(PNG_READ_FILLER_SUPPORTED) PNG_EXTERN void png_do_read_filler PNGARG((png_row_infop row_info, png_bytep row, png_uint_32 filler, png_uint_32 flags)); @@ -3470,7 +3499,7 @@ PNG_EXTERN void png_do_expand PNGARG((png_row_infop row_info, * then calls the appropriate callback for the chunk if it is valid. */ -/* decode the IHDR chunk */ +/* Decode the IHDR chunk */ PNG_EXTERN void png_handle_IHDR PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)); PNG_EXTERN void png_handle_PLTE PNGARG((png_structp png_ptr, png_infop info_ptr, @@ -3569,7 +3598,7 @@ PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr, PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr, png_bytep chunk_name)); -/* handle the transformations for reading and writing */ +/* Handle the transformations for reading and writing */ PNG_EXTERN void png_do_read_transformations PNGARG((png_structp png_ptr)); PNG_EXTERN void png_do_write_transformations PNGARG((png_structp png_ptr)); @@ -3672,6 +3701,14 @@ PNG_EXTERN int png_check_cHRM_fixed PNGARG((png_structp png_ptr, png_fixed_point int_blue_y)); #endif +#if defined(PNG_cHRM_SUPPORTED) +#if !defined(PNG_NO_CHECK_cHRM) +/* Added at libpng version 1.2.34 */ +PNG_EXTERN void png_64bit_product (long v1, long v2, unsigned long *hi_product, + unsigned long *lo_product); +#endif +#endif + /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ #endif /* PNG_INTERNAL */ @@ -3681,5 +3718,5 @@ PNG_EXTERN int png_check_cHRM_fixed PNGARG((png_structp png_ptr, #endif #endif /* PNG_VERSION_INFO_ONLY */ -/* do not put anything past this line */ +/* Do not put anything past this line */ #endif /* PNG_H */ diff --git a/src/libpng/pngconf.h b/src/libpng/pngconf.h index 145e8eb..35523d8 100644 --- a/src/libpng/pngconf.h +++ b/src/libpng/pngconf.h @@ -1,11 +1,14 @@ /* pngconf.h - machine configurable file for libpng * - * libpng version 1.2.37 - June 4, 2009 - * For conditions of distribution and use, see copyright notice in png.h + * libpng version 1.2.39 - August 13, 2009 * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h */ /* Any machine specific code is near the front of this file, so if you @@ -19,7 +22,7 @@ #define PNG_1_2_X -/* +/* * PNG_USER_CONFIG has to be defined on the compiler command line. This * includes the resource compiler for Windows DLL configurations. */ @@ -39,7 +42,7 @@ /* * Added at libpng-1.2.8 - * + * * If you create a private DLL you need to define in "pngusr.h" the followings: * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of * the DLL was built> @@ -50,8 +53,8 @@ * number and must match your private DLL name> * e.g. // private DLL "libpng13gx.dll" * #define PNG_USER_DLLFNAME_POSTFIX "gx" - * - * The following macros are also at your disposal if you want to complete the + * + * The following macros are also at your disposal if you want to complete the * DLL VERSIONINFO structure. * - PNG_USER_VERSIONINFO_COMMENTS * - PNG_USER_VERSIONINFO_COMPANYNAME @@ -147,9 +150,9 @@ * 'Cygwin' defines/defaults: * PNG_BUILD_DLL -- (ignored) building the dll * (no define) -- (ignored) building an application, linking to the dll - * PNG_STATIC -- (ignored) building the static lib, or building an + * PNG_STATIC -- (ignored) building the static lib, or building an * application that links to the static lib. - * ALL_STATIC -- (ignored) building various static libs, or building an + * ALL_STATIC -- (ignored) building various static libs, or building an * application that links to the static libs. * Thus, * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and @@ -162,12 +165,12 @@ * PNG_BUILD_DLL * PNG_STATIC * (nothing) == PNG_USE_DLL - * + * * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent - * of auto-import in binutils, we no longer need to worry about + * of auto-import in binutils, we no longer need to worry about * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes - * to __declspec() stuff. However, we DO need to worry about + * to __declspec() stuff. However, we DO need to worry about * PNG_BUILD_DLL and PNG_STATIC because those change some defaults * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. */ @@ -211,8 +214,8 @@ # if !defined(PNG_DLL) # define PNG_DLL # endif -# endif -# endif +# endif +# endif # endif #endif @@ -487,7 +490,7 @@ * iTXt support was added. iTXt support was turned off by default through * libpng-1.2.x, to support old apps that malloc the png_text structure * instead of calling png_set_text() and letting libpng malloc it. It - * was turned on by default in libpng-1.3.0. + * will be turned on by default in libpng-1.4.0. */ #if defined(PNG_1_0_X) || defined (PNG_1_2_X) @@ -521,6 +524,7 @@ # define PNG_NO_FREE_ME # define PNG_NO_READ_UNKNOWN_CHUNKS # define PNG_NO_WRITE_UNKNOWN_CHUNKS +# define PNG_NO_HANDLE_AS_UNKNOWN # define PNG_NO_READ_USER_CHUNKS # define PNG_NO_READ_iCCP # define PNG_NO_WRITE_iCCP @@ -550,7 +554,7 @@ # define PNG_FREE_ME_SUPPORTED #endif -#if defined(PNG_READ_SUPPORTED) +#ifdef PNG_READ_SUPPORTED #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ !defined(PNG_NO_READ_TRANSFORMS) @@ -638,7 +642,7 @@ #endif /* PNG_READ_SUPPORTED */ -#if defined(PNG_WRITE_SUPPORTED) +#ifdef PNG_WRITE_SUPPORTED # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ !defined(PNG_NO_WRITE_TRANSFORMS) @@ -741,7 +745,7 @@ # define PNG_EASY_ACCESS_SUPPORTED #endif -/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 +/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 * and removed from version 1.2.20. The following will be removed * from libpng-1.4.0 */ @@ -940,14 +944,22 @@ # define PNG_READ_zTXt_SUPPORTED # define PNG_zTXt_SUPPORTED #endif +#ifndef PNG_NO_READ_OPT_PLTE +# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ +#endif /* optional PLTE chunk in RGB and RGBA images */ +#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ + defined(PNG_READ_zTXt_SUPPORTED) +# define PNG_READ_TEXT_SUPPORTED +# define PNG_TEXT_SUPPORTED +#endif + +#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ + #ifndef PNG_NO_READ_UNKNOWN_CHUNKS # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED # define PNG_UNKNOWN_CHUNKS_SUPPORTED # endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# endif #endif #if !defined(PNG_NO_READ_USER_CHUNKS) && \ defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) @@ -960,17 +972,14 @@ # undef PNG_NO_HANDLE_AS_UNKNOWN # endif #endif -#ifndef PNG_NO_READ_OPT_PLTE -# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ -#endif /* optional PLTE chunk in RGB and RGBA images */ -#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ - defined(PNG_READ_zTXt_SUPPORTED) -# define PNG_READ_TEXT_SUPPORTED -# define PNG_TEXT_SUPPORTED -#endif -#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ +#ifndef PNG_NO_HANDLE_AS_UNKNOWN +# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED +# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED +# endif +#endif +#ifdef PNG_WRITE_SUPPORTED #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED #ifdef PNG_NO_WRITE_TEXT @@ -1082,17 +1091,6 @@ # define PNG_zTXt_SUPPORTED # endif #endif -#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS -# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# endif -# endif -#endif #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ defined(PNG_WRITE_zTXt_SUPPORTED) # define PNG_WRITE_TEXT_SUPPORTED @@ -1103,6 +1101,20 @@ #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ +#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS +# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED +# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED +# define PNG_UNKNOWN_CHUNKS_SUPPORTED +# endif +#endif + +#ifndef PNG_NO_HANDLE_AS_UNKNOWN +# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED +# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED +# endif +#endif +#endif /* PNG_WRITE_SUPPORTED */ + /* Turn this off to disable png_read_png() and * png_write_png() and leave the row_pointers member * out of the info structure. @@ -1248,7 +1260,7 @@ typedef char FAR * FAR * FAR * png_charppp; #if defined(PNG_1_0_X) || defined(PNG_1_2_X) /* SPC - Is this stuff deprecated? */ -/* It'll be removed as of libpng-1.3.0 - GR-P */ +/* It'll be removed as of libpng-1.4.0 - GR-P */ /* libpng typedefs for types in zlib. If zlib changes * or another compression library is used, then change these. * Eliminates need to change all the source files. @@ -1321,7 +1333,7 @@ typedef z_stream FAR * png_zstreamp; # define PNGAPI __cdecl # undef PNG_IMPEXP # define PNG_IMPEXP -#endif +#endif /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", * you may get warnings regarding the linkage of png_zalloc and png_zfree. diff --git a/src/libpng/pngerror.c b/src/libpng/pngerror.c index 71a2e53..d68416b 100644 --- a/src/libpng/pngerror.c +++ b/src/libpng/pngerror.c @@ -2,11 +2,14 @@ /* pngerror.c - stub functions for i/o and memory allocation * * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * * This file provides a location for all error handling. Users who * need special error handling are expected to write replacement functions * and use png_set_error_fn() to use those functions. See the instructions diff --git a/src/libpng/pngget.c b/src/libpng/pngget.c index 0022d95..38e4f9e 100644 --- a/src/libpng/pngget.c +++ b/src/libpng/pngget.c @@ -2,10 +2,14 @@ /* pngget.c - retrieval of values from info struct * * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * */ #define PNG_INTERNAL @@ -934,6 +938,6 @@ png_get_user_height_max (png_structp png_ptr) return (png_ptr? png_ptr->user_height_max : 0); } #endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ - + #endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/src/libpng/pngmem.c b/src/libpng/pngmem.c index d1999b6..e190cc3 100644 --- a/src/libpng/pngmem.c +++ b/src/libpng/pngmem.c @@ -2,11 +2,14 @@ /* pngmem.c - stub functions for memory allocation * * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * * This file provides a location for all memory allocation. Users who * need special memory handling are expected to supply replacement * functions for png_malloc() and png_free(), and to use diff --git a/src/libpng/pngpread.c b/src/libpng/pngpread.c index 9746c7a..7adb7b8 100644 --- a/src/libpng/pngpread.c +++ b/src/libpng/pngpread.c @@ -1,11 +1,14 @@ /* pngpread.c - read a png file in push mode * - * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h + * Last changed in libpng 1.2.38 [July 16, 2009] * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h */ #define PNG_INTERNAL diff --git a/src/libpng/pngread.c b/src/libpng/pngread.c index 370ecba..a4cbb3e 100644 --- a/src/libpng/pngread.c +++ b/src/libpng/pngread.c @@ -2,11 +2,14 @@ /* pngread.c - read a PNG file * * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * * This file contains routines that an application calls directly to * read a PNG file or stream. */ @@ -102,7 +105,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, } else png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; - + if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) { diff --git a/src/libpng/pngrio.c b/src/libpng/pngrio.c index 2c8e6a7..2267bca 100644 --- a/src/libpng/pngrio.c +++ b/src/libpng/pngrio.c @@ -2,11 +2,14 @@ /* pngrio.c - functions for data input * * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * * This file provides a location for all input. Users who need * special handling are expected to write a function that has the same * arguments as this and performs a similar function, but that possibly diff --git a/src/libpng/pngrtran.c b/src/libpng/pngrtran.c index af396df..d7e6b4a 100644 --- a/src/libpng/pngrtran.c +++ b/src/libpng/pngrtran.c @@ -1,12 +1,15 @@ /* pngrtran.c - transforms the data in a row for PNG readers * - * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h + * Last changed in libpng 1.2.38 [July 16, 2009] * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * * This file contains functions optionally called by an application * in order to tell libpng how to handle data when reading a PNG. * Transformations that are used in both reading and writing are @@ -714,8 +717,8 @@ png_set_rgb_to_gray_fixed(png_structp png_ptr, int error_action, #endif #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) + defined(PNG_LEGACY_SUPPORTED) || \ + defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) void PNGAPI png_set_read_user_transform_fn(png_structp png_ptr, png_user_transform_ptr read_user_transform_fn) @@ -1177,10 +1180,6 @@ png_read_transform_info(png_structp png_ptr, png_infop info_ptr) { if (png_ptr->transformations & PNG_EXPAND_tRNS) info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; -#if 0 /* Removed from libpng-1.2.27 */ - else - info_ptr->color_type |= PNG_COLOR_MASK_COLOR; -#endif } if (info_ptr->bit_depth < 8) info_ptr->bit_depth = 8; @@ -1374,12 +1373,12 @@ png_do_read_transformations(png_structp png_ptr) #endif /* From Andreas Dilger e-mail to png-implement, 26 March 1998: - * + * * In most cases, the "simple transparency" should be done prior to doing * gray-to-RGB, or you will have to test 3x as many bytes to check if a * pixel is transparent. You would also need to make sure that the * transparency information is upgraded to RGB. - * + * * To summarize, the current flow is: * - Gray + simple transparency -> compare 1 or 2 gray bytes and composite * with background "in place" if transparent, @@ -4202,7 +4201,7 @@ png_build_gamma_table(png_structp png_ptr) png_ptr->gamma_16_table = (png_uint_16pp)png_malloc(png_ptr, (png_uint_32)(num * png_sizeof(png_uint_16p))); - png_memset(png_ptr->gamma_16_table, 0, num * png_sizeof(png_uint_16p)); + png_memset(png_ptr->gamma_16_table, 0, num * png_sizeof(png_uint_16p)); if (png_ptr->transformations & (PNG_16_TO_8 | PNG_BACKGROUND)) { @@ -4264,7 +4263,7 @@ png_build_gamma_table(png_structp png_ptr) png_ptr->gamma_16_to_1 = (png_uint_16pp)png_malloc(png_ptr, (png_uint_32)(num * png_sizeof(png_uint_16p ))); - png_memset(png_ptr->gamma_16_to_1, 0, num * png_sizeof(png_uint_16p)); + png_memset(png_ptr->gamma_16_to_1, 0, num * png_sizeof(png_uint_16p)); for (i = 0; i < num; i++) { @@ -4290,7 +4289,7 @@ png_build_gamma_table(png_structp png_ptr) png_ptr->gamma_16_from_1 = (png_uint_16pp)png_malloc(png_ptr, (png_uint_32)(num * png_sizeof(png_uint_16p))); png_memset(png_ptr->gamma_16_from_1, 0, - num * png_sizeof(png_uint_16p)); + num * png_sizeof(png_uint_16p)); for (i = 0; i < num; i++) { diff --git a/src/libpng/pngrutil.c b/src/libpng/pngrutil.c index ae1e3f7..f656dfb 100644 --- a/src/libpng/pngrutil.c +++ b/src/libpng/pngrutil.c @@ -1,12 +1,15 @@ /* pngrutil.c - utilities to read a PNG file * - * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h + * Last changed in libpng 1.2.38 [July 16, 2009] * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * * This file contains routines that are only called from within * libpng itself during the course of reading an image. */ @@ -2251,7 +2254,7 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) if (!(png_ptr->chunk_name[0] & 0x20)) { -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) +#if defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != PNG_HANDLE_CHUNK_ALWAYS #if defined(PNG_READ_USER_CHUNKS_SUPPORTED) @@ -2263,8 +2266,11 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) } #if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if ((png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS) || - (png_ptr->read_user_chunk_fn != NULL)) + if ((png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS) +#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) + || (png_ptr->read_user_chunk_fn != NULL) +#endif + ) { #ifdef PNG_MAX_MALLOC_64K if (length > (png_uint_32)65535L) @@ -2275,7 +2281,7 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) } #endif png_memcpy((png_charp)png_ptr->unknown_chunk.name, - (png_charp)png_ptr->chunk_name, + (png_charp)png_ptr->chunk_name, png_sizeof(png_ptr->unknown_chunk.name)); png_ptr->unknown_chunk.name[png_sizeof(png_ptr->unknown_chunk.name)-1] = '\0'; png_ptr->unknown_chunk.size = (png_size_t)length; @@ -2298,8 +2304,10 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) if (ret == 0) { if (!(png_ptr->chunk_name[0] & 0x20)) +#if defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != PNG_HANDLE_CHUNK_ALWAYS) +#endif png_chunk_error(png_ptr, "unknown critical chunk"); png_set_unknown_chunks(png_ptr, info_ptr, &png_ptr->unknown_chunk, 1); diff --git a/src/libpng/pngset.c b/src/libpng/pngset.c index fa68a2d..3c110eb 100644 --- a/src/libpng/pngset.c +++ b/src/libpng/pngset.c @@ -1,12 +1,15 @@ /* pngset.c - storage of image information into info struct * - * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h + * Last changed in libpng 1.2.39 [August 13, 2009] * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * * The functions here are used during reads to store data from the file * into the info struct, and during writes to store application data * into the info struct for writing into the file. This abstracts the @@ -243,7 +246,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr, /* Check other values */ if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 && - bit_depth != 8 && bit_depth != 16) + bit_depth != 8 && bit_depth != 16) png_error(png_ptr, "Invalid bit depth in IHDR"); if (color_type < 0 || color_type == 1 || @@ -354,7 +357,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, info_ptr->pcal_purpose = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_purpose == NULL) { - png_warning(png_ptr, "Insufficient memory for pCAL purpose."); + png_warning(png_ptr, "Insufficient memory for pCAL purpose."); return; } png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length); @@ -371,7 +374,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, info_ptr->pcal_units = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_units == NULL) { - png_warning(png_ptr, "Insufficient memory for pCAL units."); + png_warning(png_ptr, "Insufficient memory for pCAL units."); return; } png_memcpy(info_ptr->pcal_units, units, (png_size_t)length); @@ -380,7 +383,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, (png_uint_32)((nparams + 1) * png_sizeof(png_charp))); if (info_ptr->pcal_params == NULL) { - png_warning(png_ptr, "Insufficient memory for pCAL params."); + png_warning(png_ptr, "Insufficient memory for pCAL params."); return; } @@ -394,8 +397,8 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_params[i] == NULL) { - png_warning(png_ptr, "Insufficient memory for pCAL parameter."); - return; + png_warning(png_ptr, "Insufficient memory for pCAL parameter."); + return; } png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length); } @@ -705,7 +708,8 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, { int i; - png_debug1(1, "in %s storage function", (png_ptr->chunk_name[0] == '\0' ? + png_debug1(1, "in %s storage function", ((png_ptr == NULL || + png_ptr->chunk_name[0] == '\0') ? "text" : (png_const_charp)png_ptr->chunk_name)); if (png_ptr == NULL || info_ptr == NULL || num_text == 0) @@ -1013,7 +1017,7 @@ png_set_unknown_chunks(png_structp png_ptr, int i; if (png_ptr == NULL || info_ptr == NULL || num_unknowns == 0) - return; + return; np = (png_unknown_chunkp)png_malloc_warn(png_ptr, (png_uint_32)((info_ptr->unknown_chunks_num + num_unknowns) * @@ -1035,8 +1039,8 @@ png_set_unknown_chunks(png_structp png_ptr, png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i; png_unknown_chunkp from = unknowns + i; - png_memcpy((png_charp)to->name, - (png_charp)from->name, + png_memcpy((png_charp)to->name, + (png_charp)from->name, png_sizeof(from->name)); to->name[png_sizeof(to->name)-1] = '\0'; to->size = from->size; diff --git a/src/libpng/pngtrans.c b/src/libpng/pngtrans.c index f221f54..6e1870c 100644 --- a/src/libpng/pngtrans.c +++ b/src/libpng/pngtrans.c @@ -2,10 +2,13 @@ /* pngtrans.c - transforms the data in a row (used by both readers and writers) * * Last changed in libpng 1.2.36 [May 14, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h */ #define PNG_INTERNAL @@ -634,8 +637,8 @@ png_do_bgr(png_row_infop row_info, png_bytep row) #endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */ #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) + defined(PNG_LEGACY_SUPPORTED) || \ + defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) void PNGAPI png_set_user_transform_info(png_structp png_ptr, png_voidp user_transform_ptr, int user_transform_depth, int user_transform_channels) diff --git a/src/libpng/pngwio.c b/src/libpng/pngwio.c index 740b71d..f77b2db 100644 --- a/src/libpng/pngwio.c +++ b/src/libpng/pngwio.c @@ -2,11 +2,14 @@ /* pngwio.c - functions for data output * * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h + * * This file provides a location for all output. Users who need * special handling are expected to write functions that have the same * arguments as these and perform similar functions, but that possibly diff --git a/src/libpng/pngwrite.c b/src/libpng/pngwrite.c index bd6263c..0987612 100644 --- a/src/libpng/pngwrite.c +++ b/src/libpng/pngwrite.c @@ -2,10 +2,13 @@ /* pngwrite.c - general routines to write a PNG file * * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h */ /* Get internal access to png.h */ diff --git a/src/libpng/pngwtran.c b/src/libpng/pngwtran.c index ac56339..88a7d3c 100644 --- a/src/libpng/pngwtran.c +++ b/src/libpng/pngwtran.c @@ -2,10 +2,13 @@ /* pngwtran.c - transforms the data in a row for PNG writers * * Last changed in libpng 1.2.37 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h */ #define PNG_INTERNAL diff --git a/src/libpng/pngwutil.c b/src/libpng/pngwutil.c index 22a83cc..aed280e 100644 --- a/src/libpng/pngwutil.c +++ b/src/libpng/pngwutil.c @@ -1,11 +1,14 @@ /* pngwutil.c - utilities to write a PNG file * - * Last changed in libpng 1.2.36 [June 4, 2009] - * For conditions of distribution and use, see copyright notice in png.h + * Last changed in libpng 1.2.39 [August 13, 2009] * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) + * + * This code is released under the libpng license. + * For conditions of distribution and use, see the disclaimer + * and license in png.h */ #define PNG_INTERNAL @@ -785,6 +788,14 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type, ((*( (png_bytep)profile + 2))<< 8) | ((*( (png_bytep)profile + 3)) ); + if (embedded_profile_len < 0) + { + png_warning(png_ptr, + "Embedded profile length in iCCP chunk is negative"); + png_free(png_ptr, new_name); + return; + } + if (profile_len < embedded_profile_len) { png_warning(png_ptr, @@ -988,7 +999,7 @@ png_write_cHRM(png_structp png_ptr, double white_x, double white_y, #endif { /* Each value is saved in 1/100,000ths */ - + png_save_uint_32(buf, int_white_x); png_save_uint_32(buf + 4, int_white_y); @@ -2116,9 +2127,12 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info) png_uint_32 mins, bpp; png_byte filter_to_do = png_ptr->do_filter; png_uint_32 row_bytes = row_info->rowbytes; -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED int num_p_filters = (int)png_ptr->num_prev_filters; -#endif +#endif + + png_debug(1, "in png_write_find_filter"); + png_debug(1, "in png_write_find_filter"); /* Find out how many bytes offset each pixel is */ diff --git a/src/lua5/imlua_image.c b/src/lua5/imlua_image.c index d823ac1..6d5ea2b 100644 --- a/src/lua5/imlua_image.c +++ b/src/lua5/imlua_image.c @@ -2,7 +2,7 @@ * \brief IM Lua 5 Binding * * See Copyright Notice in im_lib.h - * $Id: imlua_image.c,v 1.3 2009/08/18 02:23:33 scuri Exp $ + * $Id: imlua_image.c,v 1.4 2009/08/19 21:33:55 scuri Exp $ */ #include <string.h> @@ -12,6 +12,7 @@ #include "im.h" #include "im_image.h" #include "im_util.h" +#include "im_convert.h" #include <lua.h> #include <lauxlib.h> |