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Update libpng and zlib to latest releases.

This commit is contained in:
Stephen Anthony 2024-08-23 21:18:00 -02:30
parent f8fed902f4
commit 36301137c4
26 changed files with 517 additions and 409 deletions
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96
src/lib/libpng/png.c
View File

@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions /* png.c - location for general purpose libpng functions
* *
* Copyright (c) 2018-2023 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -14,27 +14,7 @@
#include "pngpriv.h" #include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */ /* Generate a compiler error if there is an old png.h in the search path. */
typedef png_libpng_version_1_6_40 Your_png_h_is_not_version_1_6_40; typedef png_libpng_version_1_6_43 Your_png_h_is_not_version_1_6_43;
#ifdef __GNUC__
/* The version tests may need to be added to, but the problem warning has
* consistently been fixed in GCC versions which obtain wide-spread release.
* The problem is that many versions of GCC rearrange comparison expressions in
* the optimizer in such a way that the results of the comparison will change
* if signed integer overflow occurs. Such comparisons are not permitted in
* ANSI C90, however GCC isn't clever enough to work out that that do not occur
* below in png_ascii_from_fp and png_muldiv, so it produces a warning with
* -Wextra. Unfortunately this is highly dependent on the optimizer and the
* machine architecture so the warning comes and goes unpredictably and is
* impossible to "fix", even were that a good idea.
*/
#if __GNUC__ == 7 && __GNUC_MINOR__ == 1
#define GCC_STRICT_OVERFLOW 1
#endif /* GNU 7.1.x */
#endif /* GNU */
#ifndef GCC_STRICT_OVERFLOW
#define GCC_STRICT_OVERFLOW 0
#endif
/* Tells libpng that we have already handled the first "num_bytes" bytes /* Tells libpng that we have already handled the first "num_bytes" bytes
* of the PNG file signature. If the PNG data is embedded into another * of the PNG file signature. If the PNG data is embedded into another
@ -73,21 +53,21 @@ png_set_sig_bytes(png_structrp png_ptr, int num_bytes)
int PNGAPI int PNGAPI
png_sig_cmp(png_const_bytep sig, size_t start, size_t num_to_check) png_sig_cmp(png_const_bytep sig, size_t start, size_t num_to_check)
{ {
png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; static const png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
if (num_to_check > 8) if (num_to_check > 8)
num_to_check = 8; num_to_check = 8;
else if (num_to_check < 1) else if (num_to_check < 1)
return (-1); return -1;
if (start > 7) if (start > 7)
return (-1); return -1;
if (start + num_to_check > 8) if (start + num_to_check > 8)
num_to_check = 8 - start; num_to_check = 8 - start;
return ((int)(memcmp(&sig[start], &png_signature[start], num_to_check))); return memcmp(&sig[start], &png_signature[start], num_to_check);
} }
#endif /* READ */ #endif /* READ */
@ -447,7 +427,6 @@ png_info_init_3,(png_infopp ptr_ptr, size_t png_info_struct_size),
memset(info_ptr, 0, (sizeof *info_ptr)); memset(info_ptr, 0, (sizeof *info_ptr));
} }
/* The following API is not called internally */
void PNGAPI void PNGAPI
png_data_freer(png_const_structrp png_ptr, png_inforp info_ptr, png_data_freer(png_const_structrp png_ptr, png_inforp info_ptr,
int freer, png_uint_32 mask) int freer, png_uint_32 mask)
@ -686,9 +665,9 @@ png_voidp PNGAPI
png_get_io_ptr(png_const_structrp png_ptr) png_get_io_ptr(png_const_structrp png_ptr)
{ {
if (png_ptr == NULL) if (png_ptr == NULL)
return (NULL); return NULL;
return (png_ptr->io_ptr); return png_ptr->io_ptr;
} }
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) #if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
@ -752,7 +731,7 @@ png_convert_to_rfc1123_buffer(char out[29], png_const_timep ptime)
{ {
size_t pos = 0; size_t pos = 0;
char number_buf[5]; /* enough for a four-digit year */ char number_buf[5] = {0, 0, 0, 0, 0}; /* enough for a four-digit year */
# define APPEND_STRING(string) pos = png_safecat(out, 29, pos, (string)) # define APPEND_STRING(string) pos = png_safecat(out, 29, pos, (string))
# define APPEND_NUMBER(format, value)\ # define APPEND_NUMBER(format, value)\
@ -815,8 +794,8 @@ png_get_copyright(png_const_structrp png_ptr)
return PNG_STRING_COPYRIGHT return PNG_STRING_COPYRIGHT
#else #else
return PNG_STRING_NEWLINE \ return PNG_STRING_NEWLINE \
"libpng version 1.6.40" PNG_STRING_NEWLINE \ "libpng version 1.6.43" PNG_STRING_NEWLINE \
"Copyright (c) 2018-2023 Cosmin Truta" PNG_STRING_NEWLINE \ "Copyright (c) 2018-2024 Cosmin Truta" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \ "Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \ PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
@ -977,7 +956,7 @@ png_reset_zstream(png_structrp png_ptr)
return Z_STREAM_ERROR; return Z_STREAM_ERROR;
/* WARNING: this resets the window bits to the maximum! */ /* WARNING: this resets the window bits to the maximum! */
return (inflateReset(&png_ptr->zstream)); return inflateReset(&png_ptr->zstream);
} }
#endif /* READ */ #endif /* READ */
@ -986,7 +965,7 @@ png_uint_32 PNGAPI
png_access_version_number(void) png_access_version_number(void)
{ {
/* Version of *.c files used when building libpng */ /* Version of *.c files used when building libpng */
return((png_uint_32)PNG_LIBPNG_VER); return (png_uint_32)PNG_LIBPNG_VER;
} }
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) #if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
@ -2532,17 +2511,6 @@ png_colorspace_set_rgb_coefficients(png_structrp png_ptr)
#endif /* COLORSPACE */ #endif /* COLORSPACE */
#ifdef __GNUC__
/* This exists solely to work round a warning from GNU C. */
static int /* PRIVATE */
png_gt(size_t a, size_t b)
{
return a > b;
}
#else
# define png_gt(a,b) ((a) > (b))
#endif
void /* PRIVATE */ void /* PRIVATE */
png_check_IHDR(png_const_structrp png_ptr, png_check_IHDR(png_const_structrp png_ptr,
png_uint_32 width, png_uint_32 height, int bit_depth, png_uint_32 width, png_uint_32 height, int bit_depth,
@ -2564,8 +2532,16 @@ png_check_IHDR(png_const_structrp png_ptr,
error = 1; error = 1;
} }
if (png_gt(((width + 7) & (~7U)), /* The bit mask on the first line below must be at least as big as a
((PNG_SIZE_MAX * png_uint_32. "~7U" is not adequate on 16-bit systems because it will
* be an unsigned 16-bit value. Casting to (png_alloc_size_t) makes the
* type of the result at least as bit (in bits) as the RHS of the > operator
* which also avoids a common warning on 64-bit systems that the comparison
* of (png_uint_32) against the constant value on the RHS will always be
* false.
*/
if (((width + 7) & ~(png_alloc_size_t)7) >
(((PNG_SIZE_MAX
- 48 /* big_row_buf hack */ - 48 /* big_row_buf hack */
- 1) /* filter byte */ - 1) /* filter byte */
/ 8) /* 8-byte RGBA pixels */ / 8) /* 8-byte RGBA pixels */
@ -2891,14 +2867,6 @@ png_pow10(int power)
/* Function to format a floating point value in ASCII with a given /* Function to format a floating point value in ASCII with a given
* precision. * precision.
*/ */
#if GCC_STRICT_OVERFLOW
#pragma GCC diagnostic push
/* The problem arises below with exp_b10, which can never overflow because it
* comes, originally, from frexp and is therefore limited to a range which is
* typically +/-710 (log2(DBL_MAX)/log2(DBL_MIN)).
*/
#pragma GCC diagnostic warning "-Wstrict-overflow=2"
#endif /* GCC_STRICT_OVERFLOW */
void /* PRIVATE */ void /* PRIVATE */
png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, size_t size, png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, size_t size,
double fp, unsigned int precision) double fp, unsigned int precision)
@ -3220,10 +3188,6 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, size_t size,
/* Here on buffer too small. */ /* Here on buffer too small. */
png_error(png_ptr, "ASCII conversion buffer too small"); png_error(png_ptr, "ASCII conversion buffer too small");
} }
#if GCC_STRICT_OVERFLOW
#pragma GCC diagnostic pop
#endif /* GCC_STRICT_OVERFLOW */
# endif /* FLOATING_POINT */ # endif /* FLOATING_POINT */
# ifdef PNG_FIXED_POINT_SUPPORTED # ifdef PNG_FIXED_POINT_SUPPORTED
@ -3251,7 +3215,7 @@ png_ascii_from_fixed(png_const_structrp png_ptr, png_charp ascii,
if (num <= 0x80000000) /* else overflowed */ if (num <= 0x80000000) /* else overflowed */
{ {
unsigned int ndigits = 0, first = 16 /* flag value */; unsigned int ndigits = 0, first = 16 /* flag value */;
char digits[10]; char digits[10] = {0};
while (num) while (num)
{ {
@ -3336,15 +3300,6 @@ png_fixed(png_const_structrp png_ptr, double fp, png_const_charp text)
* the nearest .00001). Overflow and divide by zero are signalled in * the nearest .00001). Overflow and divide by zero are signalled in
* the result, a boolean - true on success, false on overflow. * the result, a boolean - true on success, false on overflow.
*/ */
#if GCC_STRICT_OVERFLOW /* from above */
/* It is not obvious which comparison below gets optimized in such a way that
* signed overflow would change the result; looking through the code does not
* reveal any tests which have the form GCC complains about, so presumably the
* optimizer is moving an add or subtract into the 'if' somewhere.
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic warning "-Wstrict-overflow=2"
#endif /* GCC_STRICT_OVERFLOW */
int int
png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times, png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times,
png_int_32 divisor) png_int_32 divisor)
@ -3459,9 +3414,6 @@ png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times,
return 0; return 0;
} }
#if GCC_STRICT_OVERFLOW
#pragma GCC diagnostic pop
#endif /* GCC_STRICT_OVERFLOW */
#endif /* READ_GAMMA || INCH_CONVERSIONS */ #endif /* READ_GAMMA || INCH_CONVERSIONS */
#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED) #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED)

63
src/lib/libpng/png.h
View File

@ -1,9 +1,9 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.6.40 * libpng version 1.6.43
* *
* Copyright (c) 2018-2023 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -15,7 +15,7 @@
* libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.6.35, July 2018: * libpng versions 0.97, January 1998, through 1.6.35, July 2018:
* Glenn Randers-Pehrson * Glenn Randers-Pehrson
* libpng versions 1.6.36, December 2018, through 1.6.40, June 2023: * libpng versions 1.6.36, December 2018, through 1.6.43, February 2024:
* Cosmin Truta * Cosmin Truta
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
*/ */
@ -27,8 +27,8 @@
* PNG Reference Library License version 2 * PNG Reference Library License version 2
* --------------------------------------- * ---------------------------------------
* *
* * Copyright (c) 1995-2023 The PNG Reference Library Authors. * * Copyright (c) 1995-2024 The PNG Reference Library Authors.
* * Copyright (c) 2018-2023 Cosmin Truta. * * Copyright (c) 2018-2024 Cosmin Truta.
* * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson. * * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
* * Copyright (c) 1996-1997 Andreas Dilger. * * Copyright (c) 1996-1997 Andreas Dilger.
* * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -239,7 +239,7 @@
* ... * ...
* 1.5.30 15 10530 15.so.15.30[.0] * 1.5.30 15 10530 15.so.15.30[.0]
* ... * ...
* 1.6.40 16 10640 16.so.16.40[.0] * 1.6.43 16 10643 16.so.16.43[.0]
* *
* Henceforth the source version will match the shared-library major and * Henceforth the source version will match the shared-library major and
* minor numbers; the shared-library major version number will be used for * minor numbers; the shared-library major version number will be used for
@ -255,9 +255,6 @@
* to the info_ptr or png_ptr members through png.h, and the compiled * to the info_ptr or png_ptr members through png.h, and the compiled
* application is loaded with a different version of the library. * application is loaded with a different version of the library.
* *
* DLLNUM will change each time there are forward or backward changes
* in binary compatibility (e.g., when a new feature is added).
*
* See libpng.txt or libpng.3 for more information. The PNG specification * See libpng.txt or libpng.3 for more information. The PNG specification
* is available as a W3C Recommendation and as an ISO/IEC Standard; see * is available as a W3C Recommendation and as an ISO/IEC Standard; see
* <https://www.w3.org/TR/2003/REC-PNG-20031110/> * <https://www.w3.org/TR/2003/REC-PNG-20031110/>
@ -278,19 +275,21 @@
*/ */
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.6.40" #define PNG_LIBPNG_VER_STRING "1.6.43"
#define PNG_HEADER_VERSION_STRING " libpng version 1.6.40 - June 21, 2023\n" #define PNG_HEADER_VERSION_STRING " libpng version " PNG_LIBPNG_VER_STRING "\n"
#define PNG_LIBPNG_VER_SONUM 16 /* The versions of shared library builds should stay in sync, going forward */
#define PNG_LIBPNG_VER_DLLNUM 16 #define PNG_LIBPNG_VER_SHAREDLIB 16
#define PNG_LIBPNG_VER_SONUM PNG_LIBPNG_VER_SHAREDLIB /* [Deprecated] */
#define PNG_LIBPNG_VER_DLLNUM PNG_LIBPNG_VER_SHAREDLIB /* [Deprecated] */
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 6 #define PNG_LIBPNG_VER_MINOR 6
#define PNG_LIBPNG_VER_RELEASE 40 #define PNG_LIBPNG_VER_RELEASE 43
/* This should be zero for a public release, or non-zero for a /* This should be zero for a public release, or non-zero for a
* development version. [Deprecated] * development version.
*/ */
#define PNG_LIBPNG_VER_BUILD 0 #define PNG_LIBPNG_VER_BUILD 0
@ -318,7 +317,7 @@
* From version 1.0.1 it is: * From version 1.0.1 it is:
* XXYYZZ, where XX=major, YY=minor, ZZ=release * XXYYZZ, where XX=major, YY=minor, ZZ=release
*/ */
#define PNG_LIBPNG_VER 10640 /* 1.6.40 */ #define PNG_LIBPNG_VER 10643 /* 1.6.43 */
/* Library configuration: these options cannot be changed after /* Library configuration: these options cannot be changed after
* the library has been built. * the library has been built.
@ -428,7 +427,7 @@ extern "C" {
/* This triggers a compiler error in png.c, if png.c and png.h /* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number. * do not agree upon the version number.
*/ */
typedef char* png_libpng_version_1_6_40; typedef char* png_libpng_version_1_6_43;
/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info. /* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
* *
@ -849,7 +848,7 @@ PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)), typedef);
#define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */ #define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */
/* Added to libpng-1.5.4 */ /* Added to libpng-1.5.4 */
#define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */ #define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */
#if INT_MAX >= 0x8000 /* else this might break */ #if ~0U > 0xffffU /* or else this might break on a 16-bit machine */
#define PNG_TRANSFORM_SCALE_16 0x8000 /* read only */ #define PNG_TRANSFORM_SCALE_16 0x8000 /* read only */
#endif #endif
@ -908,15 +907,15 @@ PNG_EXPORT(2, void, png_set_sig_bytes, (png_structrp png_ptr, int num_bytes));
/* Check sig[start] through sig[start + num_to_check - 1] to see if it's a /* Check sig[start] through sig[start + num_to_check - 1] to see if it's a
* PNG file. Returns zero if the supplied bytes match the 8-byte PNG * PNG file. Returns zero if the supplied bytes match the 8-byte PNG
* signature, and non-zero otherwise. Having num_to_check == 0 or * signature, and non-zero otherwise. Having num_to_check == 0 or
* start > 7 will always fail (ie return non-zero). * start > 7 will always fail (i.e. return non-zero).
*/ */
PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, size_t start, PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, size_t start,
size_t num_to_check)); size_t num_to_check));
/* Simple signature checking function. This is the same as calling /* Simple signature checking function. This is the same as calling
* png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n). * png_check_sig(sig, n) := (png_sig_cmp(sig, 0, n) == 0).
*/ */
#define png_check_sig(sig, n) !png_sig_cmp((sig), 0, (n)) #define png_check_sig(sig, n) (png_sig_cmp((sig), 0, (n)) == 0) /* DEPRECATED */
/* Allocate and initialize png_ptr struct for reading, and any other memory. */ /* Allocate and initialize png_ptr struct for reading, and any other memory. */
PNG_EXPORTA(4, png_structp, png_create_read_struct, PNG_EXPORTA(4, png_structp, png_create_read_struct,
@ -1730,12 +1729,9 @@ PNG_EXPORT(97, void, png_free, (png_const_structrp png_ptr, png_voidp ptr));
PNG_EXPORT(98, void, png_free_data, (png_const_structrp png_ptr, PNG_EXPORT(98, void, png_free_data, (png_const_structrp png_ptr,
png_inforp info_ptr, png_uint_32 free_me, int num)); png_inforp info_ptr, png_uint_32 free_me, int num));
/* Reassign responsibility for freeing existing data, whether allocated /* Reassign the responsibility for freeing existing data, whether allocated
* by libpng or by the application; this works on the png_info structure passed * by libpng or by the application; this works on the png_info structure passed
* in, it does not change the state for other png_info structures. * in, without changing the state for other png_info structures.
*
* It is unlikely that this function works correctly as of 1.6.0 and using it
* may result either in memory leaks or double free of allocated data.
*/ */
PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr, PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr,
png_inforp info_ptr, int freer, png_uint_32 mask)); png_inforp info_ptr, int freer, png_uint_32 mask));
@ -3207,11 +3203,18 @@ PNG_EXPORT(245, int, png_image_write_to_memory, (png_imagep image, void *memory,
#ifdef PNG_MIPS_MSA_API_SUPPORTED #ifdef PNG_MIPS_MSA_API_SUPPORTED
# define PNG_MIPS_MSA 6 /* HARDWARE: MIPS Msa SIMD instructions supported */ # define PNG_MIPS_MSA 6 /* HARDWARE: MIPS Msa SIMD instructions supported */
#endif #endif
#define PNG_IGNORE_ADLER32 8 #ifdef PNG_DISABLE_ADLER32_CHECK_SUPPORTED
#ifdef PNG_POWERPC_VSX_API_SUPPORTED # define PNG_IGNORE_ADLER32 8 /* SOFTWARE: disable Adler32 check on IDAT */
# define PNG_POWERPC_VSX 10 /* HARDWARE: PowerPC VSX SIMD instructions supported */
#endif #endif
#define PNG_OPTION_NEXT 12 /* Next option - numbers must be even */ #ifdef PNG_POWERPC_VSX_API_SUPPORTED
# define PNG_POWERPC_VSX 10 /* HARDWARE: PowerPC VSX SIMD instructions
* supported */
#endif
#ifdef PNG_MIPS_MMI_API_SUPPORTED
# define PNG_MIPS_MMI 12 /* HARDWARE: MIPS MMI SIMD instructions supported */
#endif
#define PNG_OPTION_NEXT 14 /* Next option - numbers must be even */
/* Return values: NOTE: there are four values and 'off' is *not* zero */ /* Return values: NOTE: there are four values and 'off' is *not* zero */
#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */ #define PNG_OPTION_UNSET 0 /* Unset - defaults to off */

4
src/lib/libpng/pngconf.h
View File

@ -1,9 +1,9 @@
/* pngconf.h - machine-configurable file for libpng /* pngconf.h - machine-configurable file for libpng
* *
* libpng version 1.6.40 * libpng version 1.6.43
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.

32
src/lib/libpng/pngerror.c
View File

@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation /* pngerror.c - stub functions for i/o and memory allocation
* *
* Copyright (c) 2018 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -255,7 +255,7 @@ void
png_warning_parameter_unsigned(png_warning_parameters p, int number, int format, png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
png_alloc_size_t value) png_alloc_size_t value)
{ {
char buffer[PNG_NUMBER_BUFFER_SIZE]; char buffer[PNG_NUMBER_BUFFER_SIZE] = {0};
png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value)); png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
} }
@ -265,7 +265,7 @@ png_warning_parameter_signed(png_warning_parameters p, int number, int format,
{ {
png_alloc_size_t u; png_alloc_size_t u;
png_charp str; png_charp str;
char buffer[PNG_NUMBER_BUFFER_SIZE]; char buffer[PNG_NUMBER_BUFFER_SIZE] = {0};
/* Avoid overflow by doing the negate in a png_alloc_size_t: */ /* Avoid overflow by doing the negate in a png_alloc_size_t: */
u = (png_alloc_size_t)value; u = (png_alloc_size_t)value;
@ -858,7 +858,7 @@ png_get_error_ptr(png_const_structrp png_ptr)
if (png_ptr == NULL) if (png_ptr == NULL)
return NULL; return NULL;
return ((png_voidp)png_ptr->error_ptr); return (png_voidp)png_ptr->error_ptr;
} }
@ -933,31 +933,25 @@ png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message)
#endif #endif
int /* PRIVATE */ int /* PRIVATE */
png_safe_execute(png_imagep image_in, int (*function)(png_voidp), png_voidp arg) png_safe_execute(png_imagep image, int (*function)(png_voidp), png_voidp arg)
{ {
volatile png_imagep image = image_in; png_voidp saved_error_buf = image->opaque->error_buf;
volatile int result;
volatile png_voidp saved_error_buf;
jmp_buf safe_jmpbuf; jmp_buf safe_jmpbuf;
int result;
/* Safely execute function(arg) with png_error returning to this function. */ /* Safely execute function(arg), with png_error returning back here. */
saved_error_buf = image->opaque->error_buf; if (setjmp(safe_jmpbuf) == 0)
result = setjmp(safe_jmpbuf) == 0;
if (result != 0)
{ {
image->opaque->error_buf = safe_jmpbuf; image->opaque->error_buf = safe_jmpbuf;
result = function(arg); result = function(arg);
image->opaque->error_buf = saved_error_buf;
return result;
} }
/* On png_error, return via longjmp, pop the jmpbuf, and free the image. */
image->opaque->error_buf = saved_error_buf; image->opaque->error_buf = saved_error_buf;
/* And do the cleanup prior to any failure return. */
if (result == 0)
png_image_free(image); png_image_free(image);
return 0;
return result;
} }
#endif /* SIMPLIFIED READ || SIMPLIFIED_WRITE */ #endif /* SIMPLIFIED READ || SIMPLIFIED_WRITE */
#endif /* READ || WRITE */ #endif /* READ || WRITE */

239
src/lib/libpng/pngget.c
View File

@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct /* pngget.c - retrieval of values from info struct
* *
* Copyright (c) 2018-2023 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -28,22 +28,22 @@ png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr,
* valid tRNS chunk in this case. * valid tRNS chunk in this case.
*/ */
if (flag == PNG_INFO_tRNS && png_ptr->num_trans == 0) if (flag == PNG_INFO_tRNS && png_ptr->num_trans == 0)
return(0); return 0;
#endif #endif
return(info_ptr->valid & flag); return info_ptr->valid & flag;
} }
return(0); return 0;
} }
size_t PNGAPI size_t PNGAPI
png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->rowbytes); return info_ptr->rowbytes;
return(0); return 0;
} }
#ifdef PNG_INFO_IMAGE_SUPPORTED #ifdef PNG_INFO_IMAGE_SUPPORTED
@ -51,9 +51,9 @@ png_bytepp PNGAPI
png_get_rows(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_rows(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->row_pointers); return info_ptr->row_pointers;
return(0); return 0;
} }
#endif #endif
@ -65,7 +65,7 @@ png_get_image_width(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->width; return info_ptr->width;
return (0); return 0;
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
@ -74,7 +74,7 @@ png_get_image_height(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->height; return info_ptr->height;
return (0); return 0;
} }
png_byte PNGAPI png_byte PNGAPI
@ -83,7 +83,7 @@ png_get_bit_depth(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->bit_depth; return info_ptr->bit_depth;
return (0); return 0;
} }
png_byte PNGAPI png_byte PNGAPI
@ -92,7 +92,7 @@ png_get_color_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->color_type; return info_ptr->color_type;
return (0); return 0;
} }
png_byte PNGAPI png_byte PNGAPI
@ -101,7 +101,7 @@ png_get_filter_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->filter_type; return info_ptr->filter_type;
return (0); return 0;
} }
png_byte PNGAPI png_byte PNGAPI
@ -110,7 +110,7 @@ png_get_interlace_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->interlace_type; return info_ptr->interlace_type;
return (0); return 0;
} }
png_byte PNGAPI png_byte PNGAPI
@ -119,7 +119,7 @@ png_get_compression_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->compression_type; return info_ptr->compression_type;
return (0); return 0;
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
@ -127,21 +127,20 @@ png_get_x_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
info_ptr) info_ptr)
{ {
#ifdef PNG_pHYs_SUPPORTED #ifdef PNG_pHYs_SUPPORTED
png_debug(1, "in png_get_x_pixels_per_meter");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0) (info_ptr->valid & PNG_INFO_pHYs) != 0)
{ {
png_debug1(1, "in %s retrieval function",
"png_get_x_pixels_per_meter");
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER) if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
return (info_ptr->x_pixels_per_unit); return info_ptr->x_pixels_per_unit;
} }
#else #else
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
#endif #endif
return (0); return 0;
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
@ -149,42 +148,41 @@ png_get_y_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
info_ptr) info_ptr)
{ {
#ifdef PNG_pHYs_SUPPORTED #ifdef PNG_pHYs_SUPPORTED
png_debug(1, "in png_get_y_pixels_per_meter");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0) (info_ptr->valid & PNG_INFO_pHYs) != 0)
{ {
png_debug1(1, "in %s retrieval function",
"png_get_y_pixels_per_meter");
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER) if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
return (info_ptr->y_pixels_per_unit); return info_ptr->y_pixels_per_unit;
} }
#else #else
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
#endif #endif
return (0); return 0;
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
#ifdef PNG_pHYs_SUPPORTED #ifdef PNG_pHYs_SUPPORTED
png_debug(1, "in png_get_pixels_per_meter");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0) (info_ptr->valid & PNG_INFO_pHYs) != 0)
{ {
png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter");
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER && if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER &&
info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit) info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit)
return (info_ptr->x_pixels_per_unit); return info_ptr->x_pixels_per_unit;
} }
#else #else
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
#endif #endif
return (0); return 0;
} }
#ifdef PNG_FLOATING_POINT_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED
@ -193,21 +191,21 @@ png_get_pixel_aspect_ratio(png_const_structrp png_ptr, png_const_inforp
info_ptr) info_ptr)
{ {
#ifdef PNG_READ_pHYs_SUPPORTED #ifdef PNG_READ_pHYs_SUPPORTED
png_debug(1, "in png_get_pixel_aspect_ratio");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0) (info_ptr->valid & PNG_INFO_pHYs) != 0)
{ {
png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio");
if (info_ptr->x_pixels_per_unit != 0) if (info_ptr->x_pixels_per_unit != 0)
return ((float)((float)info_ptr->y_pixels_per_unit return (float)info_ptr->y_pixels_per_unit
/(float)info_ptr->x_pixels_per_unit)); / (float)info_ptr->x_pixels_per_unit;
} }
#else #else
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
#endif #endif
return ((float)0.0); return (float)0.0;
} }
#endif #endif
@ -217,6 +215,8 @@ png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr,
png_const_inforp info_ptr) png_const_inforp info_ptr)
{ {
#ifdef PNG_READ_pHYs_SUPPORTED #ifdef PNG_READ_pHYs_SUPPORTED
png_debug(1, "in png_get_pixel_aspect_ratio_fixed");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0 && (info_ptr->valid & PNG_INFO_pHYs) != 0 &&
info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 && info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 &&
@ -225,8 +225,6 @@ png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr,
{ {
png_fixed_point res; png_fixed_point res;
png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio_fixed");
/* The following casts work because a PNG 4 byte integer only has a valid /* The following casts work because a PNG 4 byte integer only has a valid
* range of 0..2^31-1; otherwise the cast might overflow. * range of 0..2^31-1; otherwise the cast might overflow.
*/ */
@ -247,80 +245,80 @@ png_int_32 PNGAPI
png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
#ifdef PNG_oFFs_SUPPORTED #ifdef PNG_oFFs_SUPPORTED
png_debug(1, "in png_get_x_offset_microns");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0) (info_ptr->valid & PNG_INFO_oFFs) != 0)
{ {
png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns");
if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER) if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
return (info_ptr->x_offset); return info_ptr->x_offset;
} }
#else #else
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
#endif #endif
return (0); return 0;
} }
png_int_32 PNGAPI png_int_32 PNGAPI
png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
#ifdef PNG_oFFs_SUPPORTED #ifdef PNG_oFFs_SUPPORTED
png_debug(1, "in png_get_y_offset_microns");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0) (info_ptr->valid & PNG_INFO_oFFs) != 0)
{ {
png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns");
if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER) if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
return (info_ptr->y_offset); return info_ptr->y_offset;
} }
#else #else
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
#endif #endif
return (0); return 0;
} }
png_int_32 PNGAPI png_int_32 PNGAPI
png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
#ifdef PNG_oFFs_SUPPORTED #ifdef PNG_oFFs_SUPPORTED
png_debug(1, "in png_get_x_offset_pixels");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0) (info_ptr->valid & PNG_INFO_oFFs) != 0)
{ {
png_debug1(1, "in %s retrieval function", "png_get_x_offset_pixels");
if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL) if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
return (info_ptr->x_offset); return info_ptr->x_offset;
} }
#else #else
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
#endif #endif
return (0); return 0;
} }
png_int_32 PNGAPI png_int_32 PNGAPI
png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
#ifdef PNG_oFFs_SUPPORTED #ifdef PNG_oFFs_SUPPORTED
png_debug(1, "in png_get_y_offset_pixels");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0) (info_ptr->valid & PNG_INFO_oFFs) != 0)
{ {
png_debug1(1, "in %s retrieval function", "png_get_y_offset_pixels");
if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL) if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
return (info_ptr->y_offset); return info_ptr->y_offset;
} }
#else #else
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
#endif #endif
return (0); return 0;
} }
#ifdef PNG_INCH_CONVERSIONS_SUPPORTED #ifdef PNG_INCH_CONVERSIONS_SUPPORTED
@ -434,11 +432,11 @@ png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
{ {
png_uint_32 retval = 0; png_uint_32 retval = 0;
png_debug1(1, "in %s retrieval function", "pHYs");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0) (info_ptr->valid & PNG_INFO_pHYs) != 0)
{ {
png_debug1(1, "in %s retrieval function", "pHYs");
if (res_x != NULL) if (res_x != NULL)
{ {
*res_x = info_ptr->x_pixels_per_unit; *res_x = info_ptr->x_pixels_per_unit;
@ -464,7 +462,7 @@ png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
} }
} }
return (retval); return retval;
} }
#endif /* pHYs */ #endif /* pHYs */
#endif /* INCH_CONVERSIONS */ #endif /* INCH_CONVERSIONS */
@ -478,9 +476,9 @@ png_byte PNGAPI
png_get_channels(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_channels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->channels); return info_ptr->channels;
return (0); return 0;
} }
#ifdef PNG_READ_SUPPORTED #ifdef PNG_READ_SUPPORTED
@ -488,9 +486,9 @@ png_const_bytep PNGAPI
png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->signature); return info_ptr->signature;
return (NULL); return NULL;
} }
#endif #endif
@ -499,17 +497,17 @@ png_uint_32 PNGAPI
png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr, png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
png_color_16p *background) png_color_16p *background)
{ {
png_debug1(1, "in %s retrieval function", "bKGD");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_bKGD) != 0 && (info_ptr->valid & PNG_INFO_bKGD) != 0 &&
background != NULL) background != NULL)
{ {
png_debug1(1, "in %s retrieval function", "bKGD");
*background = &(info_ptr->background); *background = &(info_ptr->background);
return (PNG_INFO_bKGD); return PNG_INFO_bKGD;
} }
return (0); return 0;
} }
#endif #endif
@ -524,6 +522,8 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
double *white_x, double *white_y, double *red_x, double *red_y, double *white_x, double *white_y, double *red_x, double *red_y,
double *green_x, double *green_y, double *blue_x, double *blue_y) double *green_x, double *green_y, double *blue_x, double *blue_y)
{ {
png_debug1(1, "in %s retrieval function", "cHRM");
/* Quiet API change: this code used to only return the end points if a cHRM /* Quiet API change: this code used to only return the end points if a cHRM
* chunk was present, but the end points can also come from iCCP or sRGB * chunk was present, but the end points can also come from iCCP or sRGB
* chunks, so in 1.6.0 the png_get_ APIs return the end points regardless and * chunks, so in 1.6.0 the png_get_ APIs return the end points regardless and
@ -533,8 +533,6 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0) (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{ {
png_debug1(1, "in %s retrieval function", "cHRM");
if (white_x != NULL) if (white_x != NULL)
*white_x = png_float(png_ptr, *white_x = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.whitex, "cHRM white X"); info_ptr->colorspace.end_points_xy.whitex, "cHRM white X");
@ -559,10 +557,10 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (blue_y != NULL) if (blue_y != NULL)
*blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey, *blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey,
"cHRM blue Y"); "cHRM blue Y");
return (PNG_INFO_cHRM); return PNG_INFO_cHRM;
} }
return (0); return 0;
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
@ -571,11 +569,11 @@ png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
double *green_Y, double *green_Z, double *blue_X, double *blue_Y, double *green_Y, double *green_Z, double *blue_X, double *blue_Y,
double *blue_Z) double *blue_Z)
{ {
png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0) (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{ {
png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
if (red_X != NULL) if (red_X != NULL)
*red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X, *red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X,
"cHRM red X"); "cHRM red X");
@ -603,10 +601,10 @@ png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (blue_Z != NULL) if (blue_Z != NULL)
*blue_Z = png_float(png_ptr, *blue_Z = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z"); info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z");
return (PNG_INFO_cHRM); return PNG_INFO_cHRM;
} }
return (0); return 0;
} }
# endif # endif
@ -619,11 +617,11 @@ png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y, png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
png_fixed_point *int_blue_Z) png_fixed_point *int_blue_Z)
{ {
png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0) (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{ {
png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
if (int_red_X != NULL) if (int_red_X != NULL)
*int_red_X = info_ptr->colorspace.end_points_XYZ.red_X; *int_red_X = info_ptr->colorspace.end_points_XYZ.red_X;
if (int_red_Y != NULL) if (int_red_Y != NULL)
@ -642,10 +640,10 @@ png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*int_blue_Y = info_ptr->colorspace.end_points_XYZ.blue_Y; *int_blue_Y = info_ptr->colorspace.end_points_XYZ.blue_Y;
if (int_blue_Z != NULL) if (int_blue_Z != NULL)
*int_blue_Z = info_ptr->colorspace.end_points_XYZ.blue_Z; *int_blue_Z = info_ptr->colorspace.end_points_XYZ.blue_Z;
return (PNG_INFO_cHRM); return PNG_INFO_cHRM;
} }
return (0); return 0;
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
@ -675,10 +673,10 @@ png_get_cHRM_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*blue_x = info_ptr->colorspace.end_points_xy.bluex; *blue_x = info_ptr->colorspace.end_points_xy.bluex;
if (blue_y != NULL) if (blue_y != NULL)
*blue_y = info_ptr->colorspace.end_points_xy.bluey; *blue_y = info_ptr->colorspace.end_points_xy.bluey;
return (PNG_INFO_cHRM); return PNG_INFO_cHRM;
} }
return (0); return 0;
} }
# endif # endif
#endif #endif
@ -696,10 +694,10 @@ png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
file_gamma != NULL) file_gamma != NULL)
{ {
*file_gamma = info_ptr->colorspace.gamma; *file_gamma = info_ptr->colorspace.gamma;
return (PNG_INFO_gAMA); return PNG_INFO_gAMA;
} }
return (0); return 0;
} }
# endif # endif
@ -716,10 +714,10 @@ png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr,
{ {
*file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma, *file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma,
"png_get_gAMA"); "png_get_gAMA");
return (PNG_INFO_gAMA); return PNG_INFO_gAMA;
} }
return (0); return 0;
} }
# endif # endif
#endif #endif
@ -735,10 +733,10 @@ png_get_sRGB(png_const_structrp png_ptr, png_const_inforp info_ptr,
(info_ptr->valid & PNG_INFO_sRGB) != 0 && file_srgb_intent != NULL) (info_ptr->valid & PNG_INFO_sRGB) != 0 && file_srgb_intent != NULL)
{ {
*file_srgb_intent = info_ptr->colorspace.rendering_intent; *file_srgb_intent = info_ptr->colorspace.rendering_intent;
return (PNG_INFO_sRGB); return PNG_INFO_sRGB;
} }
return (0); return 0;
} }
#endif #endif
@ -762,10 +760,10 @@ png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
*/ */
if (compression_type != NULL) if (compression_type != NULL)
*compression_type = PNG_COMPRESSION_TYPE_BASE; *compression_type = PNG_COMPRESSION_TYPE_BASE;
return (PNG_INFO_iCCP); return PNG_INFO_iCCP;
} }
return (0); return 0;
} }
#endif #endif
@ -775,13 +773,15 @@ int PNGAPI
png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr, png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr,
png_sPLT_tpp spalettes) png_sPLT_tpp spalettes)
{ {
png_debug1(1, "in %s retrieval function", "sPLT");
if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL) if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL)
{ {
*spalettes = info_ptr->splt_palettes; *spalettes = info_ptr->splt_palettes;
return info_ptr->splt_palettes_num; return info_ptr->splt_palettes_num;
} }
return (0); return 0;
} }
#endif #endif
@ -807,10 +807,10 @@ png_get_eXIf_1(png_const_structrp png_ptr, png_const_inforp info_ptr,
{ {
*num_exif = info_ptr->num_exif; *num_exif = info_ptr->num_exif;
*exif = info_ptr->exif; *exif = info_ptr->exif;
return (PNG_INFO_eXIf); return PNG_INFO_eXIf;
} }
return (0); return 0;
} }
#endif #endif
@ -825,10 +825,10 @@ png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_hIST) != 0 && hist != NULL) (info_ptr->valid & PNG_INFO_hIST) != 0 && hist != NULL)
{ {
*hist = info_ptr->hist; *hist = info_ptr->hist;
return (PNG_INFO_hIST); return PNG_INFO_hIST;
} }
return (0); return 0;
} }
#endif #endif
@ -841,7 +841,7 @@ png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_debug1(1, "in %s retrieval function", "IHDR"); png_debug1(1, "in %s retrieval function", "IHDR");
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return (0); return 0;
if (width != NULL) if (width != NULL)
*width = info_ptr->width; *width = info_ptr->width;
@ -873,7 +873,7 @@ png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr,
info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type, info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type,
info_ptr->compression_type, info_ptr->filter_type); info_ptr->compression_type, info_ptr->filter_type);
return (1); return 1;
} }
#ifdef PNG_oFFs_SUPPORTED #ifdef PNG_oFFs_SUPPORTED
@ -890,10 +890,10 @@ png_get_oFFs(png_const_structrp png_ptr, png_const_inforp info_ptr,
*offset_x = info_ptr->x_offset; *offset_x = info_ptr->x_offset;
*offset_y = info_ptr->y_offset; *offset_y = info_ptr->y_offset;
*unit_type = (int)info_ptr->offset_unit_type; *unit_type = (int)info_ptr->offset_unit_type;
return (PNG_INFO_oFFs); return PNG_INFO_oFFs;
} }
return (0); return 0;
} }
#endif #endif
@ -917,10 +917,10 @@ png_get_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
*nparams = (int)info_ptr->pcal_nparams; *nparams = (int)info_ptr->pcal_nparams;
*units = info_ptr->pcal_units; *units = info_ptr->pcal_units;
*params = info_ptr->pcal_params; *params = info_ptr->pcal_params;
return (PNG_INFO_pCAL); return PNG_INFO_pCAL;
} }
return (0); return 0;
} }
#endif #endif
@ -932,6 +932,8 @@ png_uint_32 PNGAPI
png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, png_fixed_point *width, png_fixed_point *height) int *unit, png_fixed_point *width, png_fixed_point *height)
{ {
png_debug1(1, "in %s retrieval function", "sCAL");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0) (info_ptr->valid & PNG_INFO_sCAL) != 0)
{ {
@ -943,10 +945,10 @@ png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width"); *width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width");
*height = png_fixed(png_ptr, atof(info_ptr->scal_s_height), *height = png_fixed(png_ptr, atof(info_ptr->scal_s_height),
"sCAL height"); "sCAL height");
return (PNG_INFO_sCAL); return PNG_INFO_sCAL;
} }
return(0); return 0;
} }
# endif /* FLOATING_ARITHMETIC */ # endif /* FLOATING_ARITHMETIC */
# endif /* FIXED_POINT */ # endif /* FIXED_POINT */
@ -955,32 +957,36 @@ png_uint_32 PNGAPI
png_get_sCAL(png_const_structrp png_ptr, png_const_inforp info_ptr, png_get_sCAL(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, double *width, double *height) int *unit, double *width, double *height)
{ {
png_debug1(1, "in %s retrieval function", "sCAL(float)");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0) (info_ptr->valid & PNG_INFO_sCAL) != 0)
{ {
*unit = info_ptr->scal_unit; *unit = info_ptr->scal_unit;
*width = atof(info_ptr->scal_s_width); *width = atof(info_ptr->scal_s_width);
*height = atof(info_ptr->scal_s_height); *height = atof(info_ptr->scal_s_height);
return (PNG_INFO_sCAL); return PNG_INFO_sCAL;
} }
return(0); return 0;
} }
# endif /* FLOATING POINT */ # endif /* FLOATING POINT */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_sCAL_s(png_const_structrp png_ptr, png_const_inforp info_ptr, png_get_sCAL_s(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, png_charpp width, png_charpp height) int *unit, png_charpp width, png_charpp height)
{ {
png_debug1(1, "in %s retrieval function", "sCAL(str)");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0) (info_ptr->valid & PNG_INFO_sCAL) != 0)
{ {
*unit = info_ptr->scal_unit; *unit = info_ptr->scal_unit;
*width = info_ptr->scal_s_width; *width = info_ptr->scal_s_width;
*height = info_ptr->scal_s_height; *height = info_ptr->scal_s_height;
return (PNG_INFO_sCAL); return PNG_INFO_sCAL;
} }
return(0); return 0;
} }
#endif /* sCAL */ #endif /* sCAL */
@ -1015,7 +1021,7 @@ png_get_pHYs(png_const_structrp png_ptr, png_const_inforp info_ptr,
} }
} }
return (retval); return retval;
} }
#endif /* pHYs */ #endif /* pHYs */
@ -1031,10 +1037,10 @@ png_get_PLTE(png_const_structrp png_ptr, png_inforp info_ptr,
*palette = info_ptr->palette; *palette = info_ptr->palette;
*num_palette = info_ptr->num_palette; *num_palette = info_ptr->num_palette;
png_debug1(3, "num_palette = %d", *num_palette); png_debug1(3, "num_palette = %d", *num_palette);
return (PNG_INFO_PLTE); return PNG_INFO_PLTE;
} }
return (0); return 0;
} }
#ifdef PNG_sBIT_SUPPORTED #ifdef PNG_sBIT_SUPPORTED
@ -1048,10 +1054,10 @@ png_get_sBIT(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_sBIT) != 0 && sig_bit != NULL) (info_ptr->valid & PNG_INFO_sBIT) != 0 && sig_bit != NULL)
{ {
*sig_bit = &(info_ptr->sig_bit); *sig_bit = &(info_ptr->sig_bit);
return (PNG_INFO_sBIT); return PNG_INFO_sBIT;
} }
return (0); return 0;
} }
#endif #endif
@ -1062,7 +1068,7 @@ png_get_text(png_const_structrp png_ptr, png_inforp info_ptr,
{ {
if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0) if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0)
{ {
png_debug1(1, "in 0x%lx retrieval function", png_debug1(1, "in text retrieval function, chunk typeid = 0x%lx",
(unsigned long)png_ptr->chunk_name); (unsigned long)png_ptr->chunk_name);
if (text_ptr != NULL) if (text_ptr != NULL)
@ -1077,7 +1083,7 @@ png_get_text(png_const_structrp png_ptr, png_inforp info_ptr,
if (num_text != NULL) if (num_text != NULL)
*num_text = 0; *num_text = 0;
return(0); return 0;
} }
#endif #endif
@ -1092,10 +1098,10 @@ png_get_tIME(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_tIME) != 0 && mod_time != NULL) (info_ptr->valid & PNG_INFO_tIME) != 0 && mod_time != NULL)
{ {
*mod_time = &(info_ptr->mod_time); *mod_time = &(info_ptr->mod_time);
return (PNG_INFO_tIME); return PNG_INFO_tIME;
} }
return (0); return 0;
} }
#endif #endif
@ -1105,11 +1111,12 @@ png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color) png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color)
{ {
png_uint_32 retval = 0; png_uint_32 retval = 0;
png_debug1(1, "in %s retrieval function", "tRNS");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_tRNS) != 0) (info_ptr->valid & PNG_INFO_tRNS) != 0)
{ {
png_debug1(1, "in %s retrieval function", "tRNS");
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{ {
if (trans_alpha != NULL) if (trans_alpha != NULL)
@ -1141,7 +1148,7 @@ png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr,
} }
} }
return (retval); return retval;
} }
#endif #endif
@ -1156,7 +1163,7 @@ png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr,
return info_ptr->unknown_chunks_num; return info_ptr->unknown_chunks_num;
} }
return (0); return 0;
} }
#endif #endif
@ -1252,7 +1259,7 @@ png_get_palette_max(png_const_structp png_ptr, png_const_infop info_ptr)
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return png_ptr->num_palette_max; return png_ptr->num_palette_max;
return (-1); return -1;
} }
# endif # endif
#endif #endif

11
src/lib/libpng/pnglibconf.h
View File

@ -1,8 +1,8 @@
/* pnglibconf.h - library build configuration */ /* pnglibconf.h - library build configuration */
/* libpng version 1.6.40 */ /* libpng version 1.6.43 */
/* Copyright (c) 2018-2023 Cosmin Truta */ /* Copyright (c) 2018-2024 Cosmin Truta */
/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */ /* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
/* This code is released under the libpng license. */ /* This code is released under the libpng license. */
@ -27,6 +27,7 @@
#define PNG_COLORSPACE_SUPPORTED #define PNG_COLORSPACE_SUPPORTED
#define PNG_CONSOLE_IO_SUPPORTED #define PNG_CONSOLE_IO_SUPPORTED
#define PNG_CONVERT_tIME_SUPPORTED #define PNG_CONVERT_tIME_SUPPORTED
/*#undef PNG_DISABLE_ADLER32_CHECK_SUPPORTED*/
#define PNG_EASY_ACCESS_SUPPORTED #define PNG_EASY_ACCESS_SUPPORTED
/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/ /*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
#define PNG_ERROR_TEXT_SUPPORTED #define PNG_ERROR_TEXT_SUPPORTED
@ -41,6 +42,10 @@
#define PNG_INCH_CONVERSIONS_SUPPORTED #define PNG_INCH_CONVERSIONS_SUPPORTED
#define PNG_INFO_IMAGE_SUPPORTED #define PNG_INFO_IMAGE_SUPPORTED
#define PNG_IO_STATE_SUPPORTED #define PNG_IO_STATE_SUPPORTED
/*#undef PNG_MIPS_MMI_API_SUPPORTED*/
/*#undef PNG_MIPS_MMI_CHECK_SUPPORTED*/
/*#undef PNG_MIPS_MSA_API_SUPPORTED*/
/*#undef PNG_MIPS_MSA_CHECK_SUPPORTED*/
#define PNG_MNG_FEATURES_SUPPORTED #define PNG_MNG_FEATURES_SUPPORTED
#define PNG_POINTER_INDEXING_SUPPORTED #define PNG_POINTER_INDEXING_SUPPORTED
/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/ /*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
@ -209,7 +214,7 @@
#define PNG_USER_HEIGHT_MAX 1000000 #define PNG_USER_HEIGHT_MAX 1000000
#define PNG_USER_WIDTH_MAX 1000000 #define PNG_USER_WIDTH_MAX 1000000
#define PNG_ZBUF_SIZE 8192 #define PNG_ZBUF_SIZE 8192
#define PNG_ZLIB_VERNUM 0x1300 #define PNG_ZLIB_VERNUM 0x1310
#define PNG_Z_DEFAULT_COMPRESSION (-1) #define PNG_Z_DEFAULT_COMPRESSION (-1)
#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0 #define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0
#define PNG_Z_DEFAULT_STRATEGY 1 #define PNG_Z_DEFAULT_STRATEGY 1

16
src/lib/libpng/pngpread.c
View File

@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode /* pngpread.c - read a png file in push mode
* *
* Copyright (c) 2018 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -145,10 +145,10 @@ png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr)
num_to_check); num_to_check);
png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes + num_to_check); png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes + num_to_check);
if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check) != 0)
{ {
if (num_checked < 4 && if (num_checked < 4 &&
png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4) != 0)
png_error(png_ptr, "Not a PNG file"); png_error(png_ptr, "Not a PNG file");
else else
@ -294,6 +294,14 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length); png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length);
} }
#endif
#ifdef PNG_READ_eXIf_SUPPORTED
else if (png_ptr->chunk_name == png_eXIf)
{
PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_eXIf(png_ptr, info_ptr, png_ptr->push_length);
}
#endif #endif
#ifdef PNG_READ_sRGB_SUPPORTED #ifdef PNG_READ_sRGB_SUPPORTED
else if (chunk_name == png_sRGB) else if (chunk_name == png_sRGB)
@ -1089,7 +1097,7 @@ png_voidp PNGAPI
png_get_progressive_ptr(png_const_structrp png_ptr) png_get_progressive_ptr(png_const_structrp png_ptr)
{ {
if (png_ptr == NULL) if (png_ptr == NULL)
return (NULL); return NULL;
return png_ptr->io_ptr; return png_ptr->io_ptr;
} }

112
src/lib/libpng/pngpriv.h
View File

@ -1,7 +1,7 @@
/* pngpriv.h - private declarations for use inside libpng /* pngpriv.h - private declarations for use inside libpng
* *
* Copyright (c) 2018-2023 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -190,13 +190,27 @@
#endif /* PNG_ARM_NEON_OPT > 0 */ #endif /* PNG_ARM_NEON_OPT > 0 */
#ifndef PNG_MIPS_MSA_OPT #ifndef PNG_MIPS_MSA_OPT
# if defined(__mips_msa) && (__mips_isa_rev >= 5) && defined(PNG_ALIGNED_MEMORY_SUPPORTED) # if defined(__mips_msa) && (__mips_isa_rev >= 5) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# define PNG_MIPS_MSA_OPT 2 # define PNG_MIPS_MSA_OPT 2
# else # else
# define PNG_MIPS_MSA_OPT 0 # define PNG_MIPS_MSA_OPT 0
# endif # endif
#endif #endif
#ifndef PNG_MIPS_MMI_OPT
# ifdef PNG_MIPS_MMI
# if defined(__mips_loongson_mmi) && (_MIPS_SIM == _ABI64) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# define PNG_MIPS_MMI_OPT 1
# else
# define PNG_MIPS_MMI_OPT 0
# endif
# else
# define PNG_MIPS_MMI_OPT 0
# endif
#endif
#ifndef PNG_POWERPC_VSX_OPT #ifndef PNG_POWERPC_VSX_OPT
# if defined(__PPC64__) && defined(__ALTIVEC__) && defined(__VSX__) # if defined(__PPC64__) && defined(__ALTIVEC__) && defined(__VSX__)
# define PNG_POWERPC_VSX_OPT 2 # define PNG_POWERPC_VSX_OPT 2
@ -205,6 +219,14 @@
# endif # endif
#endif #endif
#ifndef PNG_LOONGARCH_LSX_OPT
# if defined(__loongarch_sx)
# define PNG_LOONGARCH_LSX_OPT 1
# else
# define PNG_LOONGARCH_LSX_OPT 0
# endif
#endif
#ifndef PNG_INTEL_SSE_OPT #ifndef PNG_INTEL_SSE_OPT
# ifdef PNG_INTEL_SSE # ifdef PNG_INTEL_SSE
/* Only check for SSE if the build configuration has been modified to /* Only check for SSE if the build configuration has been modified to
@ -248,7 +270,6 @@
#endif #endif
#if PNG_MIPS_MSA_OPT > 0 #if PNG_MIPS_MSA_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_msa
# ifndef PNG_MIPS_MSA_IMPLEMENTATION # ifndef PNG_MIPS_MSA_IMPLEMENTATION
# if defined(__mips_msa) # if defined(__mips_msa)
# if defined(__clang__) # if defined(__clang__)
@ -264,11 +285,28 @@
# ifndef PNG_MIPS_MSA_IMPLEMENTATION # ifndef PNG_MIPS_MSA_IMPLEMENTATION
# define PNG_MIPS_MSA_IMPLEMENTATION 1 # define PNG_MIPS_MSA_IMPLEMENTATION 1
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_mips
# endif # endif
#else #else
# define PNG_MIPS_MSA_IMPLEMENTATION 0 # define PNG_MIPS_MSA_IMPLEMENTATION 0
#endif /* PNG_MIPS_MSA_OPT > 0 */ #endif /* PNG_MIPS_MSA_OPT > 0 */
#if PNG_MIPS_MMI_OPT > 0
# ifndef PNG_MIPS_MMI_IMPLEMENTATION
# if defined(__mips_loongson_mmi) && (_MIPS_SIM == _ABI64)
# define PNG_MIPS_MMI_IMPLEMENTATION 2
# else /* !defined __mips_loongson_mmi || _MIPS_SIM != _ABI64 */
# define PNG_MIPS_MMI_IMPLEMENTATION 0
# endif /* __mips_loongson_mmi && _MIPS_SIM == _ABI64 */
# endif /* !PNG_MIPS_MMI_IMPLEMENTATION */
# if PNG_MIPS_MMI_IMPLEMENTATION > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_mips
# endif
#else
# define PNG_MIPS_MMI_IMPLEMENTATION 0
#endif /* PNG_MIPS_MMI_OPT > 0 */
#if PNG_POWERPC_VSX_OPT > 0 #if PNG_POWERPC_VSX_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx # define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx
# define PNG_POWERPC_VSX_IMPLEMENTATION 1 # define PNG_POWERPC_VSX_IMPLEMENTATION 1
@ -276,6 +314,12 @@
# define PNG_POWERPC_VSX_IMPLEMENTATION 0 # define PNG_POWERPC_VSX_IMPLEMENTATION 0
#endif #endif
#if PNG_LOONGARCH_LSX_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_lsx
# define PNG_LOONGARCH_LSX_IMPLEMENTATION 1
#else
# define PNG_LOONGARCH_LSX_IMPLEMENTATION 0
#endif
/* Is this a build of a DLL where compilation of the object modules requires /* Is this a build of a DLL where compilation of the object modules requires
* different preprocessor settings to those required for a simple library? If * different preprocessor settings to those required for a simple library? If
@ -514,18 +558,8 @@
*/ */
# include <float.h> # include <float.h>
# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
/* We need to check that <math.h> hasn't already been included earlier
* as it seems it doesn't agree with <fp.h>, yet we should really use
* <fp.h> if possible.
*/
# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
# include <fp.h>
# endif
# else
# include <math.h> # include <math.h>
# endif
# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) # if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
/* Amiga SAS/C: We must include builtin FPU functions when compiling using /* Amiga SAS/C: We must include builtin FPU functions when compiling using
* MATH=68881 * MATH=68881
@ -1306,7 +1340,7 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_neon,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif #endif
#if PNG_MIPS_MSA_OPT > 0 #if PNG_MIPS_MSA_IMPLEMENTATION == 1
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_msa,(png_row_infop row_info, PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_msa,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY); png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_msa,(png_row_infop PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_msa,(png_row_infop
@ -1323,6 +1357,23 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_msa,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif #endif
#if PNG_MIPS_MMI_IMPLEMENTATION > 0
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_mmi,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
#if PNG_POWERPC_VSX_OPT > 0 #if PNG_POWERPC_VSX_OPT > 0
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_vsx,(png_row_infop row_info, PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_vsx,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY); png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
@ -1355,6 +1406,23 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_sse2,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif #endif
#if PNG_LOONGARCH_LSX_IMPLEMENTATION == 1
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
/* Choose the best filter to use and filter the row data */ /* Choose the best filter to use and filter the row data */
PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr,
png_row_infop row_info),PNG_EMPTY); png_row_infop row_info),PNG_EMPTY);
@ -2094,17 +2162,27 @@ PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY); (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif #endif
#if PNG_MIPS_MSA_OPT > 0 #if PNG_MIPS_MSA_IMPLEMENTATION == 1
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa, PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_mips,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY); (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif #endif
# if PNG_MIPS_MMI_IMPLEMENTATION > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_mips,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
# endif
# if PNG_INTEL_SSE_IMPLEMENTATION > 0 # if PNG_INTEL_SSE_IMPLEMENTATION > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2, PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY); (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
# endif # endif
#endif #endif
#if PNG_LOONGARCH_LSX_OPT > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_lsx,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif
PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr, PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr,
png_const_charp key, png_bytep new_key), PNG_EMPTY); png_const_charp key, png_bytep new_key), PNG_EMPTY);

12
src/lib/libpng/pngread.c
View File

@ -1,7 +1,7 @@
/* pngread.c - read a PNG file /* pngread.c - read a PNG file
* *
* Copyright (c) 2018-2019 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -568,7 +568,11 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
#endif #endif
#ifdef PNG_READ_TRANSFORMS_SUPPORTED #ifdef PNG_READ_TRANSFORMS_SUPPORTED
if (png_ptr->transformations) if (png_ptr->transformations
# ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
|| png_ptr->num_palette_max >= 0
# endif
)
png_do_read_transformations(png_ptr, &row_info); png_do_read_transformations(png_ptr, &row_info);
#endif #endif
@ -785,7 +789,7 @@ png_read_end(png_structrp png_ptr, png_inforp info_ptr)
#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED #ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
/* Report invalid palette index; added at libng-1.5.10 */ /* Report invalid palette index; added at libng-1.5.10 */
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
png_ptr->num_palette_max > png_ptr->num_palette) png_ptr->num_palette_max >= png_ptr->num_palette)
png_benign_error(png_ptr, "Read palette index exceeding num_palette"); png_benign_error(png_ptr, "Read palette index exceeding num_palette");
#endif #endif
@ -1049,6 +1053,8 @@ void PNGAPI
png_read_png(png_structrp png_ptr, png_inforp info_ptr, png_read_png(png_structrp png_ptr, png_inforp info_ptr,
int transforms, voidp params) int transforms, voidp params)
{ {
png_debug(1, "in png_read_png");
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;

32
src/lib/libpng/pngrtran.c
View File

@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers /* pngrtran.c - transforms the data in a row for PNG readers
* *
* Copyright (c) 2018-2019 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -290,7 +290,7 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
int compose = 0; int compose = 0;
png_fixed_point file_gamma; png_fixed_point file_gamma;
png_debug(1, "in png_set_alpha_mode"); png_debug(1, "in png_set_alpha_mode_fixed");
if (png_rtran_ok(png_ptr, 0) == 0) if (png_rtran_ok(png_ptr, 0) == 0)
return; return;
@ -299,12 +299,11 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
/* Validate the value to ensure it is in a reasonable range. The value /* Validate the value to ensure it is in a reasonable range. The value
* is expected to be 1 or greater, but this range test allows for some * is expected to be 1 or greater, but this range test allows for some
* viewing correction values. The intent is to weed out users of this API * viewing correction values. The intent is to weed out the API users
* who use the inverse of the gamma value accidentally! Since some of these * who might use the inverse of the gamma value accidentally!
* values are reasonable this may have to be changed:
* *
* 1.6.x: changed from 0.07..3 to 0.01..100 (to accommodate the optimal 16-bit * In libpng 1.6.0, we changed from 0.07..3 to 0.01..100, to accommodate
* gamma of 36, and its reciprocal.) * the optimal 16-bit gamma of 36 and its reciprocal.
*/ */
if (output_gamma < 1000 || output_gamma > 10000000) if (output_gamma < 1000 || output_gamma > 10000000)
png_error(png_ptr, "output gamma out of expected range"); png_error(png_ptr, "output gamma out of expected range");
@ -441,7 +440,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
int i; int i;
png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr, png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr,
(png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte)))); (png_alloc_size_t)num_palette);
for (i = 0; i < num_palette; i++) for (i = 0; i < num_palette; i++)
png_ptr->quantize_index[i] = (png_byte)i; png_ptr->quantize_index[i] = (png_byte)i;
} }
@ -458,7 +457,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
/* Initialize an array to sort colors */ /* Initialize an array to sort colors */
png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr, png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr,
(png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte)))); (png_alloc_size_t)num_palette);
/* Initialize the quantize_sort array */ /* Initialize the quantize_sort array */
for (i = 0; i < num_palette; i++) for (i = 0; i < num_palette; i++)
@ -592,11 +591,9 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
/* Initialize palette index arrays */ /* Initialize palette index arrays */
png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr, png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr,
(png_alloc_size_t)((png_uint_32)num_palette * (png_alloc_size_t)num_palette);
(sizeof (png_byte))));
png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr, png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr,
(png_alloc_size_t)((png_uint_32)num_palette * (png_alloc_size_t)num_palette);
(sizeof (png_byte))));
/* Initialize the sort array */ /* Initialize the sort array */
for (i = 0; i < num_palette; i++) for (i = 0; i < num_palette; i++)
@ -761,12 +758,11 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
size_t num_entries = ((size_t)1 << total_bits); size_t num_entries = ((size_t)1 << total_bits);
png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr, png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr,
(png_alloc_size_t)(num_entries * (sizeof (png_byte)))); (png_alloc_size_t)(num_entries));
distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)(num_entries * distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)num_entries);
(sizeof (png_byte))));
memset(distance, 0xff, num_entries * (sizeof (png_byte))); memset(distance, 0xff, num_entries);
for (i = 0; i < num_palette; i++) for (i = 0; i < num_palette; i++)
{ {
@ -970,7 +966,7 @@ void PNGFAPI
png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action, png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action,
png_fixed_point red, png_fixed_point green) png_fixed_point red, png_fixed_point green)
{ {
png_debug(1, "in png_set_rgb_to_gray"); png_debug(1, "in png_set_rgb_to_gray_fixed");
/* Need the IHDR here because of the check on color_type below. */ /* Need the IHDR here because of the check on color_type below. */
/* TODO: fix this */ /* TODO: fix this */

19
src/lib/libpng/pngrutil.c
View File

@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file /* pngrutil.c - utilities to read a PNG file
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -26,7 +26,7 @@ png_get_uint_31(png_const_structrp png_ptr, png_const_bytep buf)
if (uval > PNG_UINT_31_MAX) if (uval > PNG_UINT_31_MAX)
png_error(png_ptr, "PNG unsigned integer out of range"); png_error(png_ptr, "PNG unsigned integer out of range");
return (uval); return uval;
} }
#if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_READ_cHRM_SUPPORTED) #if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_READ_cHRM_SUPPORTED)
@ -140,7 +140,7 @@ png_read_sig(png_structrp png_ptr, png_inforp info_ptr)
if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check) != 0) if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check) != 0)
{ {
if (num_checked < 4 && if (num_checked < 4 &&
png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4) != 0)
png_error(png_ptr, "Not a PNG file"); png_error(png_ptr, "Not a PNG file");
else else
png_error(png_ptr, "PNG file corrupted by ASCII conversion"); png_error(png_ptr, "PNG file corrupted by ASCII conversion");
@ -171,7 +171,7 @@ png_read_chunk_header(png_structrp png_ptr)
/* Put the chunk name into png_ptr->chunk_name. */ /* Put the chunk name into png_ptr->chunk_name. */
png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(buf+4); png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(buf+4);
png_debug2(0, "Reading %lx chunk, length = %lu", png_debug2(0, "Reading chunk typeid = 0x%lx, length = %lu",
(unsigned long)png_ptr->chunk_name, (unsigned long)length); (unsigned long)png_ptr->chunk_name, (unsigned long)length);
/* Reset the crc and run it over the chunk name. */ /* Reset the crc and run it over the chunk name. */
@ -238,10 +238,10 @@ png_crc_finish(png_structrp png_ptr, png_uint_32 skip)
else else
png_chunk_error(png_ptr, "CRC error"); png_chunk_error(png_ptr, "CRC error");
return (1); return 1;
} }
return (0); return 0;
} }
/* Compare the CRC stored in the PNG file with that calculated by libpng from /* Compare the CRC stored in the PNG file with that calculated by libpng from
@ -277,11 +277,11 @@ png_crc_error(png_structrp png_ptr)
if (need_crc != 0) if (need_crc != 0)
{ {
crc = png_get_uint_32(crc_bytes); crc = png_get_uint_32(crc_bytes);
return ((int)(crc != png_ptr->crc)); return crc != png_ptr->crc;
} }
else else
return (0); return 0;
} }
#if defined(PNG_READ_iCCP_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) ||\ #if defined(PNG_READ_iCCP_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) ||\
@ -421,8 +421,7 @@ png_inflate_claim(png_structrp png_ptr, png_uint_32 owner)
png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED; png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED;
} }
#if ZLIB_VERNUM >= 0x1290 && \ #ifdef PNG_DISABLE_ADLER32_CHECK_SUPPORTED
defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_IGNORE_ADLER32)
if (((png_ptr->options >> PNG_IGNORE_ADLER32) & 3) == PNG_OPTION_ON) if (((png_ptr->options >> PNG_IGNORE_ADLER32) & 3) == PNG_OPTION_ON)
/* Turn off validation of the ADLER32 checksum in IDAT chunks */ /* Turn off validation of the ADLER32 checksum in IDAT chunks */
ret = inflateValidate(&png_ptr->zstream, 0); ret = inflateValidate(&png_ptr->zstream, 0);

22
src/lib/libpng/pngset.c
View File

@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct /* pngset.c - storage of image information into info struct
* *
* Copyright (c) 2018-2023 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -763,11 +763,11 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
{ {
int i; int i;
png_debug1(1, "in %lx storage function", png_ptr == NULL ? 0xabadca11U : png_debug1(1, "in text storage function, chunk typeid = 0x%lx",
(unsigned long)png_ptr->chunk_name); png_ptr == NULL ? 0xabadca11UL : (unsigned long)png_ptr->chunk_name);
if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL)
return(0); return 0;
/* Make sure we have enough space in the "text" array in info_struct /* Make sure we have enough space in the "text" array in info_struct
* to hold all of the incoming text_ptr objects. This compare can't overflow * to hold all of the incoming text_ptr objects. This compare can't overflow
@ -947,7 +947,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
png_debug1(3, "transferred text chunk %d", info_ptr->num_text); png_debug1(3, "transferred text chunk %d", info_ptr->num_text);
} }
return(0); return 0;
} }
#endif #endif
@ -1063,6 +1063,8 @@ png_set_sPLT(png_const_structrp png_ptr,
{ {
png_sPLT_tp np; png_sPLT_tp np;
png_debug1(1, "in %s storage function", "sPLT");
if (png_ptr == NULL || info_ptr == NULL || nentries <= 0 || entries == NULL) if (png_ptr == NULL || info_ptr == NULL || nentries <= 0 || entries == NULL)
return; return;
@ -1537,7 +1539,7 @@ void PNGAPI
png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr, png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytepp row_pointers) png_bytepp row_pointers)
{ {
png_debug1(1, "in %s storage function", "rows"); png_debug(1, "in png_set_rows");
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;
@ -1556,6 +1558,8 @@ png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr,
void PNGAPI void PNGAPI
png_set_compression_buffer_size(png_structrp png_ptr, size_t size) png_set_compression_buffer_size(png_structrp png_ptr, size_t size)
{ {
png_debug(1, "in png_set_compression_buffer_size");
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
@ -1627,6 +1631,8 @@ void PNGAPI
png_set_user_limits(png_structrp png_ptr, png_uint_32 user_width_max, png_set_user_limits(png_structrp png_ptr, png_uint_32 user_width_max,
png_uint_32 user_height_max) png_uint_32 user_height_max)
{ {
png_debug(1, "in png_set_user_limits");
/* Images with dimensions larger than these limits will be /* Images with dimensions larger than these limits will be
* rejected by png_set_IHDR(). To accept any PNG datastream * rejected by png_set_IHDR(). To accept any PNG datastream
* regardless of dimensions, set both limits to 0x7fffffff. * regardless of dimensions, set both limits to 0x7fffffff.
@ -1642,6 +1648,8 @@ png_set_user_limits(png_structrp png_ptr, png_uint_32 user_width_max,
void PNGAPI void PNGAPI
png_set_chunk_cache_max(png_structrp png_ptr, png_uint_32 user_chunk_cache_max) png_set_chunk_cache_max(png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
{ {
png_debug(1, "in png_set_chunk_cache_max");
if (png_ptr != NULL) if (png_ptr != NULL)
png_ptr->user_chunk_cache_max = user_chunk_cache_max; png_ptr->user_chunk_cache_max = user_chunk_cache_max;
} }
@ -1651,6 +1659,8 @@ void PNGAPI
png_set_chunk_malloc_max(png_structrp png_ptr, png_set_chunk_malloc_max(png_structrp png_ptr,
png_alloc_size_t user_chunk_malloc_max) png_alloc_size_t user_chunk_malloc_max)
{ {
png_debug(1, "in png_set_chunk_malloc_max");
if (png_ptr != NULL) if (png_ptr != NULL)
png_ptr->user_chunk_malloc_max = user_chunk_malloc_max; png_ptr->user_chunk_malloc_max = user_chunk_malloc_max;
} }

14
src/lib/libpng/pngtrans.c
View File

@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers) /* pngtrans.c - transforms the data in a row (used by both readers and writers)
* *
* Copyright (c) 2018 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -103,10 +103,10 @@ png_set_interlace_handling(png_structrp png_ptr)
if (png_ptr != 0 && png_ptr->interlaced != 0) if (png_ptr != 0 && png_ptr->interlaced != 0)
{ {
png_ptr->transformations |= PNG_INTERLACE; png_ptr->transformations |= PNG_INTERLACE;
return (7); return 7;
} }
return (1); return 1;
} }
#endif #endif
@ -498,6 +498,8 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
png_bytep dp = row; /* destination pointer */ png_bytep dp = row; /* destination pointer */
png_bytep ep = row + row_info->rowbytes; /* One beyond end of row */ png_bytep ep = row + row_info->rowbytes; /* One beyond end of row */
png_debug(1, "in png_do_strip_channel");
/* At the start sp will point to the first byte to copy and dp to where /* At the start sp will point to the first byte to copy and dp to where
* it is copied to. ep always points just beyond the end of the row, so * it is copied to. ep always points just beyond the end of the row, so
* the loop simply copies (channels-1) channels until sp reaches ep. * the loop simply copies (channels-1) channels until sp reaches ep.
@ -698,6 +700,8 @@ png_do_bgr(png_row_infop row_info, png_bytep row)
void /* PRIVATE */ void /* PRIVATE */
png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info) png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
{ {
png_debug(1, "in png_do_check_palette_indexes");
if (png_ptr->num_palette < (1 << row_info->bit_depth) && if (png_ptr->num_palette < (1 << row_info->bit_depth) &&
png_ptr->num_palette > 0) /* num_palette can be 0 in MNG files */ png_ptr->num_palette > 0) /* num_palette can be 0 in MNG files */
{ {
@ -708,7 +712,7 @@ png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
* forms produced on either GCC or MSVC. * forms produced on either GCC or MSVC.
*/ */
int padding = PNG_PADBITS(row_info->pixel_depth, row_info->width); int padding = PNG_PADBITS(row_info->pixel_depth, row_info->width);
png_bytep rp = png_ptr->row_buf + row_info->rowbytes - 1; png_bytep rp = png_ptr->row_buf + row_info->rowbytes;
switch (row_info->bit_depth) switch (row_info->bit_depth)
{ {
@ -833,7 +837,7 @@ png_voidp PNGAPI
png_get_user_transform_ptr(png_const_structrp png_ptr) png_get_user_transform_ptr(png_const_structrp png_ptr)
{ {
if (png_ptr == NULL) if (png_ptr == NULL)
return (NULL); return NULL;
return png_ptr->user_transform_ptr; return png_ptr->user_transform_ptr;
} }

19
src/lib/libpng/pngwrite.c
View File

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file /* pngwrite.c - general routines to write a PNG file
* *
* Copyright (c) 2018-2023 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -369,7 +369,8 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr)
png_error(png_ptr, "No IDATs written into file"); png_error(png_ptr, "No IDATs written into file");
#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED #ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
if (png_ptr->num_palette_max > png_ptr->num_palette) if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
png_ptr->num_palette_max >= png_ptr->num_palette)
png_benign_error(png_ptr, "Wrote palette index exceeding num_palette"); png_benign_error(png_ptr, "Wrote palette index exceeding num_palette");
#endif #endif
@ -714,12 +715,12 @@ png_write_row(png_structrp png_ptr, png_const_bytep row)
/* 1.5.6: moved from png_struct to be a local structure: */ /* 1.5.6: moved from png_struct to be a local structure: */
png_row_info row_info; png_row_info row_info;
if (png_ptr == NULL)
return;
png_debug2(1, "in png_write_row (row %u, pass %d)", png_debug2(1, "in png_write_row (row %u, pass %d)",
png_ptr->row_number, png_ptr->pass); png_ptr->row_number, png_ptr->pass);
if (png_ptr == NULL)
return;
/* Initialize transformations and other stuff if first time */ /* Initialize transformations and other stuff if first time */
if (png_ptr->row_number == 0 && png_ptr->pass == 0) if (png_ptr->row_number == 0 && png_ptr->pass == 0)
{ {
@ -1210,6 +1211,8 @@ png_set_compression_strategy(png_structrp png_ptr, int strategy)
void PNGAPI void PNGAPI
png_set_compression_window_bits(png_structrp png_ptr, int window_bits) png_set_compression_window_bits(png_structrp png_ptr, int window_bits)
{ {
png_debug(1, "in png_set_compression_window_bits");
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
@ -1293,6 +1296,8 @@ png_set_text_compression_strategy(png_structrp png_ptr, int strategy)
void PNGAPI void PNGAPI
png_set_text_compression_window_bits(png_structrp png_ptr, int window_bits) png_set_text_compression_window_bits(png_structrp png_ptr, int window_bits)
{ {
png_debug(1, "in png_set_text_compression_window_bits");
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
@ -1330,6 +1335,8 @@ png_set_text_compression_method(png_structrp png_ptr, int method)
void PNGAPI void PNGAPI
png_set_write_status_fn(png_structrp png_ptr, png_write_status_ptr write_row_fn) png_set_write_status_fn(png_structrp png_ptr, png_write_status_ptr write_row_fn)
{ {
png_debug(1, "in png_set_write_status_fn");
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
@ -1357,6 +1364,8 @@ void PNGAPI
png_write_png(png_structrp png_ptr, png_inforp info_ptr, png_write_png(png_structrp png_ptr, png_inforp info_ptr,
int transforms, voidp params) int transforms, voidp params)
{ {
png_debug(1, "in png_write_png");
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;

10
src/lib/libpng/pngwutil.c
View File

@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file /* pngwutil.c - utilities to write a PNG file
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -2311,7 +2311,7 @@ png_setup_sub_row(png_structrp png_ptr, png_uint_32 bpp,
break; break;
} }
return (sum); return sum;
} }
static void /* PRIVATE */ static void /* PRIVATE */
@ -2361,7 +2361,7 @@ png_setup_up_row(png_structrp png_ptr, size_t row_bytes, size_t lmins)
break; break;
} }
return (sum); return sum;
} }
static void /* PRIVATE */ static void /* PRIVATE */
png_setup_up_row_only(png_structrp png_ptr, size_t row_bytes) png_setup_up_row_only(png_structrp png_ptr, size_t row_bytes)
@ -2417,7 +2417,7 @@ png_setup_avg_row(png_structrp png_ptr, png_uint_32 bpp,
break; break;
} }
return (sum); return sum;
} }
static void /* PRIVATE */ static void /* PRIVATE */
png_setup_avg_row_only(png_structrp png_ptr, png_uint_32 bpp, png_setup_avg_row_only(png_structrp png_ptr, png_uint_32 bpp,
@ -2500,7 +2500,7 @@ png_setup_paeth_row(png_structrp png_ptr, png_uint_32 bpp,
break; break;
} }
return (sum); return sum;
} }
static void /* PRIVATE */ static void /* PRIVATE */
png_setup_paeth_row_only(png_structrp png_ptr, png_uint_32 bpp, png_setup_paeth_row_only(png_structrp png_ptr, png_uint_32 bpp,

47
src/lib/zlib/deflate.c
View File

@ -1,5 +1,5 @@
/* deflate.c -- compress data using the deflation algorithm /* deflate.c -- compress data using the deflation algorithm
* Copyright (C) 1995-2023 Jean-loup Gailly and Mark Adler * Copyright (C) 1995-2024 Jean-loup Gailly and Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -52,7 +52,7 @@
#include "deflate.h" #include "deflate.h"
const char deflate_copyright[] = const char deflate_copyright[] =
" deflate 1.3 Copyright 1995-2023 Jean-loup Gailly and Mark Adler "; " deflate 1.3.1 Copyright 1995-2024 Jean-loup Gailly and Mark Adler ";
/* /*
If you use the zlib library in a product, an acknowledgment is welcome If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot in the documentation of your product. If for some reason you cannot
@ -493,7 +493,7 @@ int ZEXPORT deflateInit2_(z_streamp strm, int level, int method,
* symbols from which it is being constructed. * symbols from which it is being constructed.
*/ */
s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, 4); s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, LIT_BUFS);
s->pending_buf_size = (ulg)s->lit_bufsize * 4; s->pending_buf_size = (ulg)s->lit_bufsize * 4;
if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
@ -503,8 +503,14 @@ int ZEXPORT deflateInit2_(z_streamp strm, int level, int method,
deflateEnd (strm); deflateEnd (strm);
return Z_MEM_ERROR; return Z_MEM_ERROR;
} }
#ifdef LIT_MEM
s->d_buf = (ushf *)(s->pending_buf + (s->lit_bufsize << 1));
s->l_buf = s->pending_buf + (s->lit_bufsize << 2);
s->sym_end = s->lit_bufsize - 1;
#else
s->sym_buf = s->pending_buf + s->lit_bufsize; s->sym_buf = s->pending_buf + s->lit_bufsize;
s->sym_end = (s->lit_bufsize - 1) * 3; s->sym_end = (s->lit_bufsize - 1) * 3;
#endif
/* We avoid equality with lit_bufsize*3 because of wraparound at 64K /* We avoid equality with lit_bufsize*3 because of wraparound at 64K
* on 16 bit machines and because stored blocks are restricted to * on 16 bit machines and because stored blocks are restricted to
* 64K-1 bytes. * 64K-1 bytes.
@ -720,9 +726,15 @@ int ZEXPORT deflatePrime(z_streamp strm, int bits, int value) {
if (deflateStateCheck(strm)) return Z_STREAM_ERROR; if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
s = strm->state; s = strm->state;
#ifdef LIT_MEM
if (bits < 0 || bits > 16 ||
(uchf *)s->d_buf < s->pending_out + ((Buf_size + 7) >> 3))
return Z_BUF_ERROR;
#else
if (bits < 0 || bits > 16 || if (bits < 0 || bits > 16 ||
s->sym_buf < s->pending_out + ((Buf_size + 7) >> 3)) s->sym_buf < s->pending_out + ((Buf_size + 7) >> 3))
return Z_BUF_ERROR; return Z_BUF_ERROR;
#endif
do { do {
put = Buf_size - s->bi_valid; put = Buf_size - s->bi_valid;
if (put > bits) if (put > bits)
@ -1294,7 +1306,7 @@ int ZEXPORT deflateCopy(z_streamp dest, z_streamp source) {
ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos));
ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos));
ds->pending_buf = (uchf *) ZALLOC(dest, ds->lit_bufsize, 4); ds->pending_buf = (uchf *) ZALLOC(dest, ds->lit_bufsize, LIT_BUFS);
if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
ds->pending_buf == Z_NULL) { ds->pending_buf == Z_NULL) {
@ -1305,10 +1317,15 @@ int ZEXPORT deflateCopy(z_streamp dest, z_streamp source) {
zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos)); zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos));
zmemcpy((voidpf)ds->head, (voidpf)ss->head, ds->hash_size * sizeof(Pos)); zmemcpy((voidpf)ds->head, (voidpf)ss->head, ds->hash_size * sizeof(Pos));
zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); zmemcpy(ds->pending_buf, ss->pending_buf, ds->lit_bufsize * LIT_BUFS);
ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
#ifdef LIT_MEM
ds->d_buf = (ushf *)(ds->pending_buf + (ds->lit_bufsize << 1));
ds->l_buf = ds->pending_buf + (ds->lit_bufsize << 2);
#else
ds->sym_buf = ds->pending_buf + ds->lit_bufsize; ds->sym_buf = ds->pending_buf + ds->lit_bufsize;
#endif
ds->l_desc.dyn_tree = ds->dyn_ltree; ds->l_desc.dyn_tree = ds->dyn_ltree;
ds->d_desc.dyn_tree = ds->dyn_dtree; ds->d_desc.dyn_tree = ds->dyn_dtree;
@ -1539,13 +1556,21 @@ local uInt longest_match(deflate_state *s, IPos cur_match) {
*/ */
local void check_match(deflate_state *s, IPos start, IPos match, int length) { local void check_match(deflate_state *s, IPos start, IPos match, int length) {
/* check that the match is indeed a match */ /* check that the match is indeed a match */
if (zmemcmp(s->window + match, Bytef *back = s->window + (int)match, *here = s->window + start;
s->window + start, length) != EQUAL) { IPos len = length;
fprintf(stderr, " start %u, match %u, length %d\n", if (match == (IPos)-1) {
start, match, length); /* match starts one byte before the current window -- just compare the
subsequent length-1 bytes */
back++;
here++;
len--;
}
if (zmemcmp(back, here, len) != EQUAL) {
fprintf(stderr, " start %u, match %d, length %d\n",
start, (int)match, length);
do { do {
fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); fprintf(stderr, "(%02x %02x)", *back++, *here++);
} while (--length != 0); } while (--len != 0);
z_error("invalid match"); z_error("invalid match");
} }
if (z_verbose > 1) { if (z_verbose > 1) {

35
src/lib/zlib/deflate.h
View File

@ -1,5 +1,5 @@
/* deflate.h -- internal compression state /* deflate.h -- internal compression state
* Copyright (C) 1995-2018 Jean-loup Gailly * Copyright (C) 1995-2024 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -23,6 +23,10 @@
# define GZIP # define GZIP
#endif #endif
/* define LIT_MEM to slightly increase the speed of deflate (order 1% to 2%) at
the cost of a larger memory footprint */
/* #define LIT_MEM */
/* =========================================================================== /* ===========================================================================
* Internal compression state. * Internal compression state.
*/ */
@ -217,7 +221,14 @@ typedef struct internal_state {
/* Depth of each subtree used as tie breaker for trees of equal frequency /* Depth of each subtree used as tie breaker for trees of equal frequency
*/ */
#ifdef LIT_MEM
# define LIT_BUFS 5
ushf *d_buf; /* buffer for distances */
uchf *l_buf; /* buffer for literals/lengths */
#else
# define LIT_BUFS 4
uchf *sym_buf; /* buffer for distances and literals/lengths */ uchf *sym_buf; /* buffer for distances and literals/lengths */
#endif
uInt lit_bufsize; uInt lit_bufsize;
/* Size of match buffer for literals/lengths. There are 4 reasons for /* Size of match buffer for literals/lengths. There are 4 reasons for
@ -239,7 +250,7 @@ typedef struct internal_state {
* - I can't count above 4 * - I can't count above 4
*/ */
uInt sym_next; /* running index in sym_buf */ uInt sym_next; /* running index in symbol buffer */
uInt sym_end; /* symbol table full when sym_next reaches this */ uInt sym_end; /* symbol table full when sym_next reaches this */
ulg opt_len; /* bit length of current block with optimal trees */ ulg opt_len; /* bit length of current block with optimal trees */
@ -318,6 +329,25 @@ void ZLIB_INTERNAL _tr_stored_block(deflate_state *s, charf *buf,
extern const uch ZLIB_INTERNAL _dist_code[]; extern const uch ZLIB_INTERNAL _dist_code[];
#endif #endif
#ifdef LIT_MEM
# define _tr_tally_lit(s, c, flush) \
{ uch cc = (c); \
s->d_buf[s->sym_next] = 0; \
s->l_buf[s->sym_next++] = cc; \
s->dyn_ltree[cc].Freq++; \
flush = (s->sym_next == s->sym_end); \
}
# define _tr_tally_dist(s, distance, length, flush) \
{ uch len = (uch)(length); \
ush dist = (ush)(distance); \
s->d_buf[s->sym_next] = dist; \
s->l_buf[s->sym_next++] = len; \
dist--; \
s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
s->dyn_dtree[d_code(dist)].Freq++; \
flush = (s->sym_next == s->sym_end); \
}
#else
# define _tr_tally_lit(s, c, flush) \ # define _tr_tally_lit(s, c, flush) \
{ uch cc = (c); \ { uch cc = (c); \
s->sym_buf[s->sym_next++] = 0; \ s->sym_buf[s->sym_next++] = 0; \
@ -337,6 +367,7 @@ void ZLIB_INTERNAL _tr_stored_block(deflate_state *s, charf *buf,
s->dyn_dtree[d_code(dist)].Freq++; \ s->dyn_dtree[d_code(dist)].Freq++; \
flush = (s->sym_next == s->sym_end); \ flush = (s->sym_next == s->sym_end); \
} }
#endif
#else #else
# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) # define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c)
# define _tr_tally_dist(s, distance, length, flush) \ # define _tr_tally_dist(s, distance, length, flush) \

8
src/lib/zlib/gzguts.h
View File

@ -1,5 +1,5 @@
/* gzguts.h -- zlib internal header definitions for gz* operations /* gzguts.h -- zlib internal header definitions for gz* operations
* Copyright (C) 2004-2019 Mark Adler * Copyright (C) 2004-2024 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -210,9 +210,5 @@ char ZLIB_INTERNAL *gz_strwinerror(DWORD error);
/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t /* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t
value -- needed when comparing unsigned to z_off64_t, which is signed value -- needed when comparing unsigned to z_off64_t, which is signed
(possible z_off64_t types off_t, off64_t, and long are all signed) */ (possible z_off64_t types off_t, off64_t, and long are all signed) */
#ifdef INT_MAX
# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX)
#else
unsigned ZLIB_INTERNAL gz_intmax(void); unsigned ZLIB_INTERNAL gz_intmax(void);
# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax()) #define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax())
#endif

12
src/lib/zlib/gzlib.c
View File

@ -1,5 +1,5 @@
/* gzlib.c -- zlib functions common to reading and writing gzip files /* gzlib.c -- zlib functions common to reading and writing gzip files
* Copyright (C) 2004-2019 Mark Adler * Copyright (C) 2004-2024 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -563,20 +563,20 @@ void ZLIB_INTERNAL gz_error(gz_statep state, int err, const char *msg) {
#endif #endif
} }
#ifndef INT_MAX
/* portably return maximum value for an int (when limits.h presumed not /* portably return maximum value for an int (when limits.h presumed not
available) -- we need to do this to cover cases where 2's complement not available) -- we need to do this to cover cases where 2's complement not
used, since C standard permits 1's complement and sign-bit representations, used, since C standard permits 1's complement and sign-bit representations,
otherwise we could just use ((unsigned)-1) >> 1 */ otherwise we could just use ((unsigned)-1) >> 1 */
unsigned ZLIB_INTERNAL gz_intmax(void) { unsigned ZLIB_INTERNAL gz_intmax(void) {
unsigned p, q; #ifdef INT_MAX
return INT_MAX;
p = 1; #else
unsigned p = 1, q;
do { do {
q = p; q = p;
p <<= 1; p <<= 1;
p++; p++;
} while (p > q); } while (p > q);
return q >> 1; return q >> 1;
}
#endif #endif
}

2
src/lib/zlib/inflate.c
View File

@ -1387,7 +1387,7 @@ int ZEXPORT inflateSync(z_streamp strm) {
/* if first time, start search in bit buffer */ /* if first time, start search in bit buffer */
if (state->mode != SYNC) { if (state->mode != SYNC) {
state->mode = SYNC; state->mode = SYNC;
state->hold <<= state->bits & 7; state->hold >>= state->bits & 7;
state->bits -= state->bits & 7; state->bits -= state->bits & 7;
len = 0; len = 0;
while (state->bits >= 8) { while (state->bits >= 8) {

6
src/lib/zlib/inftrees.c
View File

@ -1,5 +1,5 @@
/* inftrees.c -- generate Huffman trees for efficient decoding /* inftrees.c -- generate Huffman trees for efficient decoding
* Copyright (C) 1995-2023 Mark Adler * Copyright (C) 1995-2024 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -9,7 +9,7 @@
#define MAXBITS 15 #define MAXBITS 15
const char inflate_copyright[] = const char inflate_copyright[] =
" inflate 1.3 Copyright 1995-2023 Mark Adler "; " inflate 1.3.1 Copyright 1995-2024 Mark Adler ";
/* /*
If you use the zlib library in a product, an acknowledgment is welcome If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot in the documentation of your product. If for some reason you cannot
@ -57,7 +57,7 @@ int ZLIB_INTERNAL inflate_table(codetype type, unsigned short FAR *lens,
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
static const unsigned short lext[31] = { /* Length codes 257..285 extra */ static const unsigned short lext[31] = { /* Length codes 257..285 extra */
16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 198, 203}; 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 203, 77};
static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,

4
src/lib/zlib/inftrees.h
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@ -41,8 +41,8 @@ typedef struct {
examples/enough.c found in the zlib distribution. The arguments to that examples/enough.c found in the zlib distribution. The arguments to that
program are the number of symbols, the initial root table size, and the program are the number of symbols, the initial root table size, and the
maximum bit length of a code. "enough 286 9 15" for literal/length codes maximum bit length of a code. "enough 286 9 15" for literal/length codes
returns returns 852, and "enough 30 6 15" for distance codes returns 592. returns 852, and "enough 30 6 15" for distance codes returns 592. The
The initial root table size (9 or 6) is found in the fifth argument of the initial root table size (9 or 6) is found in the fifth argument of the
inflate_table() calls in inflate.c and infback.c. If the root table size is inflate_table() calls in inflate.c and infback.c. If the root table size is
changed, then these maximum sizes would be need to be recalculated and changed, then these maximum sizes would be need to be recalculated and
updated. */ updated. */

20
src/lib/zlib/trees.c
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@ -1,5 +1,5 @@
/* trees.c -- output deflated data using Huffman coding /* trees.c -- output deflated data using Huffman coding
* Copyright (C) 1995-2021 Jean-loup Gailly * Copyright (C) 1995-2024 Jean-loup Gailly
* detect_data_type() function provided freely by Cosmin Truta, 2006 * detect_data_type() function provided freely by Cosmin Truta, 2006
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -899,14 +899,19 @@ local void compress_block(deflate_state *s, const ct_data *ltree,
const ct_data *dtree) { const ct_data *dtree) {
unsigned dist; /* distance of matched string */ unsigned dist; /* distance of matched string */
int lc; /* match length or unmatched char (if dist == 0) */ int lc; /* match length or unmatched char (if dist == 0) */
unsigned sx = 0; /* running index in sym_buf */ unsigned sx = 0; /* running index in symbol buffers */
unsigned code; /* the code to send */ unsigned code; /* the code to send */
int extra; /* number of extra bits to send */ int extra; /* number of extra bits to send */
if (s->sym_next != 0) do { if (s->sym_next != 0) do {
#ifdef LIT_MEM
dist = s->d_buf[sx];
lc = s->l_buf[sx++];
#else
dist = s->sym_buf[sx++] & 0xff; dist = s->sym_buf[sx++] & 0xff;
dist += (unsigned)(s->sym_buf[sx++] & 0xff) << 8; dist += (unsigned)(s->sym_buf[sx++] & 0xff) << 8;
lc = s->sym_buf[sx++]; lc = s->sym_buf[sx++];
#endif
if (dist == 0) { if (dist == 0) {
send_code(s, lc, ltree); /* send a literal byte */ send_code(s, lc, ltree); /* send a literal byte */
Tracecv(isgraph(lc), (stderr," '%c' ", lc)); Tracecv(isgraph(lc), (stderr," '%c' ", lc));
@ -931,8 +936,12 @@ local void compress_block(deflate_state *s, const ct_data *ltree,
} }
} /* literal or match pair ? */ } /* literal or match pair ? */
/* Check that the overlay between pending_buf and sym_buf is ok: */ /* Check for no overlay of pending_buf on needed symbols */
#ifdef LIT_MEM
Assert(s->pending < 2 * (s->lit_bufsize + sx), "pendingBuf overflow");
#else
Assert(s->pending < s->lit_bufsize + sx, "pendingBuf overflow"); Assert(s->pending < s->lit_bufsize + sx, "pendingBuf overflow");
#endif
} while (sx < s->sym_next); } while (sx < s->sym_next);
@ -1082,9 +1091,14 @@ void ZLIB_INTERNAL _tr_flush_block(deflate_state *s, charf *buf,
* the current block must be flushed. * the current block must be flushed.
*/ */
int ZLIB_INTERNAL _tr_tally(deflate_state *s, unsigned dist, unsigned lc) { int ZLIB_INTERNAL _tr_tally(deflate_state *s, unsigned dist, unsigned lc) {
#ifdef LIT_MEM
s->d_buf[s->sym_next] = (ush)dist;
s->l_buf[s->sym_next++] = (uch)lc;
#else
s->sym_buf[s->sym_next++] = (uch)dist; s->sym_buf[s->sym_next++] = (uch)dist;
s->sym_buf[s->sym_next++] = (uch)(dist >> 8); s->sym_buf[s->sym_next++] = (uch)(dist >> 8);
s->sym_buf[s->sym_next++] = (uch)lc; s->sym_buf[s->sym_next++] = (uch)lc;
#endif
if (dist == 0) { if (dist == 0) {
/* lc is the unmatched char */ /* lc is the unmatched char */
s->dyn_ltree[lc].Freq++; s->dyn_ltree[lc].Freq++;

12
src/lib/zlib/zconf.h
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@ -1,5 +1,5 @@
/* zconf.h -- configuration of the zlib compression library /* zconf.h -- configuration of the zlib compression library
* Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -10,7 +10,7 @@
/* Added by SA: 2018-12-18 */ /* Added by SA: 2018-12-18 */
#if defined(BSPF_UNIX) || defined(BSPF_MACOS) #if defined(BSPF_UNIX) || defined(BSPF_MACOS)
#define HAVE_UNISTD_H # define HAVE_UNISTD_H
#endif #endif
#define HAVE_STDARG_H #define HAVE_STDARG_H
/***************************/ /***************************/
@ -307,14 +307,6 @@
# endif # endif
#endif #endif
#ifndef Z_ARG /* function prototypes for stdarg */
# if defined(STDC) || defined(Z_HAVE_STDARG_H)
# define Z_ARG(args) args
# else
# define Z_ARG(args) ()
# endif
#endif
/* The following definitions for FAR are needed only for MSDOS mixed /* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations). * model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have * This was tested only with MSC; for other MSDOS compilers you may have

22
src/lib/zlib/zlib.h
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@ -1,7 +1,7 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library /* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.3, August 18th, 2023 version 1.3.1, January 22nd, 2024
Copyright (C) 1995-2023 Jean-loup Gailly and Mark Adler Copyright (C) 1995-2024 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages warranty. In no event will the authors be held liable for any damages
@ -37,11 +37,11 @@
extern "C" { extern "C" {
#endif #endif
#define ZLIB_VERSION "1.3" #define ZLIB_VERSION "1.3.1"
#define ZLIB_VERNUM 0x1300 #define ZLIB_VERNUM 0x1310
#define ZLIB_VER_MAJOR 1 #define ZLIB_VER_MAJOR 1
#define ZLIB_VER_MINOR 3 #define ZLIB_VER_MINOR 3
#define ZLIB_VER_REVISION 0 #define ZLIB_VER_REVISION 1
#define ZLIB_VER_SUBREVISION 0 #define ZLIB_VER_SUBREVISION 0
/* /*
@ -936,10 +936,10 @@ ZEXTERN int ZEXPORT inflateSync(z_streamp strm);
inflateSync returns Z_OK if a possible full flush point has been found, inflateSync returns Z_OK if a possible full flush point has been found,
Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point
has been found, or Z_STREAM_ERROR if the stream structure was inconsistent. has been found, or Z_STREAM_ERROR if the stream structure was inconsistent.
In the success case, the application may save the current current value of In the success case, the application may save the current value of total_in
total_in which indicates where valid compressed data was found. In the which indicates where valid compressed data was found. In the error case,
error case, the application may repeatedly call inflateSync, providing more the application may repeatedly call inflateSync, providing more input each
input each time, until success or end of the input data. time, until success or end of the input data.
*/ */
ZEXTERN int ZEXPORT inflateCopy(z_streamp dest, ZEXTERN int ZEXPORT inflateCopy(z_streamp dest,
@ -1758,14 +1758,14 @@ ZEXTERN uLong ZEXPORT crc32_combine(uLong crc1, uLong crc2, z_off_t len2);
seq1 and seq2 with lengths len1 and len2, CRC-32 check values were seq1 and seq2 with lengths len1 and len2, CRC-32 check values were
calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32 calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32
check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and
len2. len2. len2 must be non-negative.
*/ */
/* /*
ZEXTERN uLong ZEXPORT crc32_combine_gen(z_off_t len2); ZEXTERN uLong ZEXPORT crc32_combine_gen(z_off_t len2);
Return the operator corresponding to length len2, to be used with Return the operator corresponding to length len2, to be used with
crc32_combine_op(). crc32_combine_op(). len2 must be non-negative.
*/ */
ZEXTERN uLong ZEXPORT crc32_combine_op(uLong crc1, uLong crc2, uLong op); ZEXTERN uLong ZEXPORT crc32_combine_op(uLong crc1, uLong crc2, uLong op);

27
src/lib/zlib/zutil.h
View File

@ -1,5 +1,5 @@
/* zutil.h -- internal interface and configuration of the compression library /* zutil.h -- internal interface and configuration of the compression library
* Copyright (C) 1995-2022 Jean-loup Gailly, Mark Adler * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h * For conditions of distribution and use, see copyright notice in zlib.h
*/ */
@ -56,7 +56,7 @@ typedef unsigned long ulg;
extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
/* (size given to avoid silly warnings with Visual C++) */ /* (size given to avoid silly warnings with Visual C++) */
#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] #define ERR_MSG(err) z_errmsg[(err) < -6 || (err) > 2 ? 9 : 2 - (err)]
#define ERR_RETURN(strm,err) \ #define ERR_RETURN(strm,err) \
return (strm->msg = ERR_MSG(err), (err)) return (strm->msg = ERR_MSG(err), (err))
@ -137,17 +137,8 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# endif # endif
#endif #endif
#if defined(MACOS) || defined(TARGET_OS_MAC) #if defined(MACOS)
# define OS_CODE 7 # define OS_CODE 7
# ifndef Z_SOLO
# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
# include <unix.h> /* for fdopen */
# else
# ifndef fdopen
# define fdopen(fd,mode) NULL /* No fdopen() */
# endif
# endif
# endif
#endif #endif
#ifdef __acorn #ifdef __acorn
@ -170,18 +161,6 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# define OS_CODE 19 # define OS_CODE 19
#endif #endif
#if defined(_BEOS_) || defined(RISCOS)
# define fdopen(fd,mode) NULL /* No fdopen() */
#endif
#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
# if defined(_WIN32_WCE)
# define fdopen(fd,mode) NULL /* No fdopen() */
# else
# define fdopen(fd,type) _fdopen(fd,type)
# endif
#endif
#if defined(__BORLANDC__) && !defined(MSDOS) #if defined(__BORLANDC__) && !defined(MSDOS)
#pragma warn -8004 #pragma warn -8004
#pragma warn -8008 #pragma warn -8008