| Libpng 1.6.15 - November 20, 2014 |
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| This is a public release of libpng, intended for use in production codes. |
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| Files available for download: |
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| Source files with LF line endings (for Unix/Linux) and with a |
| "configure" script |
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| libpng-1.6.15.tar.xz (LZMA-compressed, recommended) |
| libpng-1.6.15.tar.gz |
| |
| Source files with CRLF line endings (for Windows), without the |
| "configure" script |
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| lpng1615.7z (LZMA-compressed, recommended) |
| lpng1615.zip |
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| Other information: |
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| libpng-1.6.15-README.txt |
| libpng-1.6.15-LICENSE.txt |
| libpng-1.6.15-*.asc (armored detached GPG signatures) |
| |
| Changes since the last public release (1.6.14): |
| Changed "if (!x)" to "if (x == 0)" and "if (x)" to "if (x != 0)" |
| Simplified png_free_data(). |
| Added missing "ptr = NULL" after some instances of png_free(). |
| Made a one-line revision to configure.ac to support ARM on aarch64 |
| (bug report by Marcin Juszkiewicz, fix by John Bowler). |
| Avoid out-of-bounds memory access in png_user_version_check(). |
| Simplified and future-proofed png_user_version_check(). |
| Fixed GCC unsigned int->float warnings. Various versions of GCC |
| seem to generate warnings when an unsigned value is implicitly |
| converted to double. This is probably a GCC bug but this change |
| avoids the issue by explicitly converting to (int) where safe. |
| Free all allocated memory in pngimage. The file buffer cache was left |
| allocated at the end of the program, harmless but it causes memory |
| leak reports from clang. |
| Fixed array size calculations to avoid warnings. At various points |
| in the code the number of elements in an array is calculated using |
| sizeof. This generates a compile time constant of type (size_t) which |
| is then typically assigned to an (unsigned int) or (int). Some versions |
| of GCC on 64-bit systems warn about the apparent narrowing, even though |
| the same compiler does apparently generate the correct, in-range, |
| numeric constant. This adds appropriate, safe, casts to make the |
| warnings go away. |
| Removed #ifdef PNG_16BIT_SUPPORTED/#endif around png_product2(); it is |
| needed by png_reciprocal2(). |
| Added #ifdef PNG_16BIT_SUPPORTED/#endif around png_log16bit() and |
| png_do_swap(). |
| Changed all "#endif /* PNG_FEATURE_SUPPORTED */" to "#endif /* FEATURE */" |
| The macros passed in the command line to Borland make were ignored if |
| similarly-named macros were already defined in makefiles. This behavior |
| is different from POSIX make and other make programs. Surround the |
| macro definitions with ifndef guards (Cosmin). |
| Added "-D_CRT_SECURE_NO_WARNINGS" to CFLAGS in scripts/makefile.vcwin32. |
| Removed the obsolete $ARCH variable from scripts/makefile.darwin. |
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| Send comments/corrections/commendations to png-mng-implement at lists.sf.net |
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| or to glennrp at users.sourceforge.net |
| |
| Glenn R-P |
