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| Libpng 1.0.13 - April 15, 2002 |
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| This is a public release of libpng, intended for use in production codes. |
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| Changes since the last public release (1.2.1): |
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| Fixed a bug with reading the length of iCCP profiles (Larry Reeves). |
| Revised makefile.linux, makefile.gcmmx, and others to generate |
| libpng.a, libpngNN.so, libpng.so.NN, and libpngNN/png.h |
| Revised makefile.darwin to remove "-undefined suppress" option. |
| Added checks for gamma and chromaticity values over 21474.83, which exceed |
| the limit for PNG unsigned 32-bit integers when encoded. |
| Revised calls to png_create_read_struct() and png_create_write_struct() |
| for simpler debugging. |
| Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK) |
| Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths. |
| Check for invalid image dimensions in png_get_IHDR. |
| Added install-shared and install-static targets to all makefiles that make |
| shared libraries. |
| Always do gamma compensation when image is partially transparent. |
| Modified shared-library makefiles to install pkgconfig/libpngNN.pc. |
| Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown |
| Removed unused png_write_destroy_info prototype from png.h |
| Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case |
| Stopped a double free of palette, hist, and trans when not using free_me. |
| Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64. |
| Compute background.gray and background_1.gray even when color_type is RGB |
| in case image gets reduced to gray later (Jason Summers). |
| Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library. |
| Added missing PNGAPI to several function definitions. |
| Check for invalid bit_depth or color_type in png_get_IHDR(), and |
| check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen). |
| Revised iTXt support to accept NULL for lang and lang_key. |
| Compute gamma for color components of background even when color_type is gray. |
| Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN |
| Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so |
| Prevent png_zalloc() from trying to memset memory that it failed to acquire. |
| Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate). |
| Ensure that the right function (user or default) is used to free the |
| png_struct after an error in png_create_read_struct_2(). |
| Save the ebx register in pnggccrd.c (Sami Farin) |
| Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner). |
| Updated makefiles to put headers in include/libpng and remove old include/*.h. |
| Revised description of png_set_filter() in libpng.3/libpng.txt. |
| Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd |
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| Send comments/corrections/commendations to |
| png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu |
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| Glenn R-P |
