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| Libpng 1.2.6beta4 - July 28, 2004 |
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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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| Changes since the last public release (1.2.5): |
| |
| Commented out warning about uninitialized mmx_support in pnggccrd.c. |
| Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h. |
| Relocated two more misplaced PNGAPI lines in pngtest.c |
| Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams, |
| introduced in version 1.0.2. |
| Fixed potential overrun in pngerror.c by using strncpy instead of memcpy. |
| Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu. |
| Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile. |
| Fixed potential overrun in pngerror.c by using strncpy instead of memcpy. |
| Added "#!/bin/sh" at the top of configure, for recognition of the |
| 'x' flag under Cygwin (Cosmin). |
| Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin). |
| Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin). |
| Fixed the special memory handler for Borland C under DOS, in pngmem.c |
| (Cosmin). |
| Removed some spurious assignments in pngrutil.c (Cosmin). |
| Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings |
| on 16-bit platforms (Cosmin). |
| Enclosed shift op expressions in parentheses, to silence warnings (Cosmin). |
| Used proper type png_fixed_point, to avoid problems on 16-bit platforms, |
| in png_handle_sRGB() (Cosmin). |
| Added compression_type to png_struct, and optimized the window size |
| inside the deflate stream (Cosmin). |
| Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin). |
| Fixed handling of unknown chunks that come after IDAT (Cosmin). |
| Allowed png_error() and png_warning() to work even if png_ptr == NULL |
| (Cosmin). |
| Replaced row_info->rowbytes with row_bytes in png_write_find_filter() |
| (Cosmin). |
| Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre). |
| Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded |
| values in png.c (Simon-Pierre, Cosmin). |
| Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre). |
| Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc |
| (Simon-Pierre). |
| Moved the definition of PNG_HEADER_VERSION_STRING near the definitions |
| of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin). |
| Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin). |
| Updated scripts/makefile.vc(a)win32 (Cosmin). |
| Updated the MSVC project (Simon-Pierre, Cosmin). |
| Updated the Borland C++ Builder project (Cosmin). |
| Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin). |
| Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin). |
| Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin). |
| Added extra guard around inclusion of Turbo C memory headers, in pngconf.h |
| (Cosmin). |
| Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to |
| projects/cbuilder5/ (Cosmin). |
| Moved projects/visualc6/png32ms.def to scripts/pngw32.def, |
| and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin). |
| Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin). |
| Updated contrib/visupng/VisualPng.dsp (Cosmin). |
| Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin). |
| Added a separate distribution with "configure" and supporting files (Junichi). |
| Added user ability to change png_size_t via a PNG_SIZE_T macro. |
| Added png_sizeof() and png_convert_size() functions. |
| Added PNG_SIZE_MAX (maximum value of a png_size_t variable. |
| Added check in png_malloc_default() for (size_t)size != (png_uint_32)size |
| which would indicate an overflow. |
| Changed sPLT failure action from png_error to png_warning and abandon chunk. |
| Changed sCAL and iCCP failures from png_error to png_warning and abandon. |
| Added png_get_uint_31(png_ptr, buf) function. |
| Added PNG_UINT_32_MAX macro. |
| Renamed PNG_MAX_UINT to PNG_UINT_31_MAX. |
| Made png_zalloc() issue a png_warning and return NULL on potential |
| overflow. |
| Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x |
| Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4. |
| Revised Borland portion of png_malloc() to return NULL or issue |
| png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK. |
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| Send comments/corrections/commendations to |
| png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net |
| |
| Glenn R-P |
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