31aee0d0c0
Fixed point APIs are now supported throughout (no missing APIs).
Internal fixed point arithmetic support exists for all internal floating
point operations.
sCAL validates the floating point strings it is passed.
Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2
Two new APIs exist to get the number of passes without turning on the
PNG_INTERLACE transform and to get the number of rows in the current
pass.
A new test program, pngvalid.c, validates the gamma code.
Errors in the 16 bit gamma correction (overflows) have been corrected.
cHRM chunk testing is done consistently (previously the floating point
API bypassed it, because the test really didn't work on FP, now the test
is performed on the actual values to be stored in the PNG file so it
works in the FP case too.)
Most floating point APIs now simply call the fixed point APIs after
converting the values to the fixed point form used in the PNG file.
The standard headers no longer include zlib.h, which is currently only
required for pngstruct.h and can therefore be internal.
(Patches by John Bowler)
27 lines
794 B
Plaintext
27 lines
794 B
Plaintext
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/* vers.dfn - define format of libpng.vers
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*
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* Last changed in libpng version 1.5.0 [July 29, 2010]
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* Copyright (c) 1998-2010 Glenn Randers-Pehrson
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*
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* This code is released under the libpng license.
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* For conditions of distribution and use, see the disclaimer
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* and license in png.h
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*/
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#define HEADER PNG_DEFN_MAGIC-PNGLIB_LIBNAME {global:-PNG_DEFN_END
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/* NOTE: @@@ is interpreted by the calling script as a signal to
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* join the two things on either side, so we can do symbol
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* substitution within the name, regular C ## joins the pp-tokens,
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* not their final values.
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*/
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#define PNG_EXPORT(type, name, args, attributes, ordinal)\
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PNG_DEFN_MAGIC- SYMBOL_PREFIX @@@ name;-PNG_DEFN_END
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#define TRAILER PNG_DEFN_MAGIC-local: *; };-PNG_DEFN_END
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HEADER
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#include "../png.h"
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TRAILER
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