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| Libpng 1.5.7beta01 - November 4, 2011 |
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| This is not intended to be a public release. It will be replaced |
| within a few weeks by a public version or by another test version. |
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| Files available for download: |
| |
| Source files with LF line endings (for Unix/Linux) and with a |
| "configure" script |
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| 1.5.7beta01.tar.xz (LZMA-compressed, recommended) |
| 1.5.7beta01.tar.gz |
| 1.5.7beta01.tar.bz2 |
| |
| Source files with CRLF line endings (for Windows), without the |
| "configure" script |
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| lp157b01.7z (LZMA-compressed, recommended) |
| lp157b01.zip |
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| Other information: |
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| 1.5.7beta01-README.txt |
| 1.5.7beta01-LICENSE.txt |
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| Changes since the last public release (1.5.6): |
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| Version 1.5.7beta01 [November 4, 2011] |
| Added support for ARM processor (Mans Rullgard) |
| Fixed bug in pngvalid on early allocation failure; fixed type cast in |
| pngmem.c; pngvalid would attempt to call png_error() if the allocation |
| of a png_struct or png_info failed. This would probably have led to a |
| crash. The pngmem.c implementation of png_malloc() included a cast |
| to png_size_t which would fail on large allocations on 16-bit systems. |
| Fix for the preprocessor of the Intel C compiler. The preprocessor |
| splits adjacent @ signs with a space; this changes the concatentation |
| token from @@@ to PNG_JOIN; that should work with all compiler |
| preprocessors. |
| Paeth filter speed improvements from work by Siarhei Siamashka. This |
| changes the 'Paeth' reconstruction function to improve the GCC code |
| generation on x86. The changes are only part of the suggested ones; |
| just the changes that definitely improve speed and remain simple. |
| The changes also slightly increase the clarity of the code. In a |
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| Send comments/corrections/commendations to png-mng-implement at lists.sf.net: |
| (subscription required; visit |
| https://lists.sourceforge.net/lists/listinfo/png-mng-implement |
| to subscribe) or to glennrp at users.sourceforge.net |
| |
| Glenn R-P |