Update libpng from 1.6.38 to 1.6.39 (#2838)

Author: patrikjuvonen

vendor/libpng/png.c

@@ -14,7 +14,7 @@
 #include "pngpriv.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_38 Your_png_h_is_not_version_1_6_38;
+typedef png_libpng_version_1_6_39 Your_png_h_is_not_version_1_6_39;
 
 #ifdef __GNUC__
 /* The version tests may need to be added to, but the problem warning has
@@ -815,7 +815,7 @@ png_get_copyright(png_const_structrp png_ptr)
    return PNG_STRING_COPYRIGHT
 #else
    return PNG_STRING_NEWLINE \
-      "libpng version 1.6.38" PNG_STRING_NEWLINE \
+      "libpng version 1.6.39" PNG_STRING_NEWLINE \
       "Copyright (c) 2018-2022 Cosmin Truta" PNG_STRING_NEWLINE \
       "Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \
       PNG_STRING_NEWLINE \
@@ -2710,7 +2710,7 @@ png_check_IHDR(png_const_structrp png_ptr,
 
 int /* PRIVATE */
 png_check_fp_number(png_const_charp string, size_t size, int *statep,
-    png_size_tp whereami)
+    size_t *whereami)
 {
    int state = *statep;
    size_t i = *whereami;

vendor/libpng/png.h

@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.6.38 - September 14, 2022
+ * libpng version 1.6.39 - November 20, 2022
  *
  * Copyright (c) 2018-2022 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
@@ -15,7 +15,7 @@
  *   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:
  *     Glenn Randers-Pehrson
- *   libpng versions 1.6.36, December 2018, through 1.6.38, September 2022:
+ *   libpng versions 1.6.36, December 2018, through 1.6.39, November 2022:
  *     Cosmin Truta
  *   See also "Contributing Authors", below.
  */
@@ -239,7 +239,7 @@
  *    ...
  *    1.5.30                  15    10530  15.so.15.30[.0]
  *    ...
- *    1.6.38                  16    10638  16.so.16.38[.0]
+ *    1.6.39                  16    10639  16.so.16.39[.0]
  *
  *    Henceforth the source version will match the shared-library major and
  *    minor numbers; the shared-library major version number will be used for
@@ -278,16 +278,16 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.6.38"
-#define PNG_HEADER_VERSION_STRING " libpng version 1.6.38 - September 14, 2022\n"
+#define PNG_LIBPNG_VER_STRING "1.6.39"
+#define PNG_HEADER_VERSION_STRING " libpng version 1.6.39 - November 20, 2022\n"
 
 #define PNG_LIBPNG_VER_SONUM   16
 #define PNG_LIBPNG_VER_DLLNUM  16
 
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   6
-#define PNG_LIBPNG_VER_RELEASE 38
+#define PNG_LIBPNG_VER_RELEASE 39
 
 /* This should be zero for a public release, or non-zero for a
  * development version.  [Deprecated]
@@ -318,7 +318,7 @@
  * From version 1.0.1 it is:
  * XXYYZZ, where XX=major, YY=minor, ZZ=release
  */
-#define PNG_LIBPNG_VER 10638 /* 1.6.38 */
+#define PNG_LIBPNG_VER 10639 /* 1.6.39 */
 
 /* Library configuration: these options cannot be changed after
  * the library has been built.
@@ -428,7 +428,7 @@ extern "C" {
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef char* png_libpng_version_1_6_38;
+typedef char* png_libpng_version_1_6_39;
 
 /* Basic control structions.  Read libpng-manual.txt or libpng.3 for more info.
  *

vendor/libpng/pngconf.h

@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine-configurable file for libpng
  *
- * libpng version 1.6.38
+ * libpng version 1.6.39
  *
  * Copyright (c) 2018-2022 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson

vendor/libpng/pngpriv.h

@@ -1946,7 +1946,7 @@ PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
  * the problem character.)  This has not been tested within libpng.
  */
 PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string,
-   size_t size, int *statep, png_size_tp whereami),PNG_EMPTY);
+   size_t size, int *statep, size_t *whereami),PNG_EMPTY);
 
 /* This is the same but it checks a complete string and returns true
  * only if it just contains a floating point number.  As of 1.5.4 this

vendor/libpng/pngread.c

@@ -3762,13 +3762,13 @@ png_image_read_direct(png_voidp argument)
          mode = PNG_ALPHA_PNG;
          output_gamma = PNG_DEFAULT_sRGB;
       }
-      
+
       if ((change & PNG_FORMAT_FLAG_ASSOCIATED_ALPHA) != 0)
       {
          mode = PNG_ALPHA_OPTIMIZED;
          change &= ~PNG_FORMAT_FLAG_ASSOCIATED_ALPHA;
       }
-      
+
       /* If 'do_local_background' is set check for the presence of gamma
        * correction; this is part of the work-round for the libpng bug
        * described above.

vendor/libpng/pngrutil.c

@@ -3186,7 +3186,7 @@ png_check_chunk_length(png_const_structrp png_ptr, png_uint_32 length)
    {
       png_debug2(0," length = %lu, limit = %lu",
          (unsigned long)length,(unsigned long)limit);
-      png_chunk_error(png_ptr, "chunk data is too large");
+      png_benign_error(png_ptr, "chunk data is too large");
    }
 }
 

vendor/libpng/pngtest.c

@@ -2155,4 +2155,4 @@ main(void)
 #endif
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_38 Your_png_h_is_not_version_1_6_38;
+typedef png_libpng_version_1_6_39 Your_png_h_is_not_version_1_6_39;

vendor/libpng/pngwrite.c

@@ -75,10 +75,10 @@ write_unknown_chunks(png_structrp png_ptr, png_const_inforp info_ptr,
  * library.  If you have a new chunk to add, make a function to write it,
  * and put it in the correct location here.  If you want the chunk written
  * after the image data, put it in png_write_end().  I strongly encourage
- * you to supply a PNG_INFO_ flag, and check info_ptr->valid before writing
- * the chunk, as that will keep the code from breaking if you want to just
- * write a plain PNG file.  If you have long comments, I suggest writing
- * them in png_write_end(), and compressing them.
+ * you to supply a PNG_INFO_<chunk> flag, and check info_ptr->valid before
+ * writing the chunk, as that will keep the code from breaking if you want
+ * to just write a plain PNG file.  If you have long comments, I suggest
+ * writing them in png_write_end(), and compressing them.
  */
 void PNGAPI
 png_write_info_before_PLTE(png_structrp png_ptr, png_const_inforp info_ptr)

vendor/libpng/pngwutil.c

@@ -1,7 +1,7 @@
 
 /* pngwutil.c - utilities to write a PNG file
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2022 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -1747,7 +1747,7 @@ png_write_pCAL(png_structrp png_ptr, png_charp purpose, png_int_32 X0,
 {
    png_uint_32 purpose_len;
    size_t units_len, total_len;
-   png_size_tp params_len;
+   size_t *params_len;
    png_byte buf[10];
    png_byte new_purpose[80];
    int i;
@@ -1769,7 +1769,7 @@ png_write_pCAL(png_structrp png_ptr, png_charp purpose, png_int_32 X0,
    png_debug1(3, "pCAL units length = %d", (int)units_len);
    total_len = purpose_len + units_len + 10;
 
-   params_len = (png_size_tp)png_malloc(png_ptr,
+   params_len = (size_t *)png_malloc(png_ptr,
        (png_alloc_size_t)((png_alloc_size_t)nparams * (sizeof (size_t))));
 
    /* Find the length of each parameter, making sure we don't count the