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[libpng17] Updated ANNOUNCE and CHANGES

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Glenn Randers-Pehrson 2015-12-01 11:35:57 -06:00
parent b427d7216d
commit aacda27449
2 changed files with 28 additions and 0 deletions
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13
ANNOUNCE
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@ -1057,6 +1057,19 @@ Version 1.7.0beta70 [December 1, 2015]
controlled by the size of the compression buffer.
Updated manual to require png_set_PLTE() to precede png_set_tRNS()
and png_set_hIST() if either is present.
Removed the side-effect on the png_struct palette of calling png_set_PLTE()
or png_set_tRNS(). This is a quiet API change; it was previously possible
to alter the palette on a PNG image by using png_set_PLTE, but this was
unintended and inconsistent with the other png_set APIs.
Fixed a bug in palette index checking; png_struct::num_palette could, in
principle, get changed by the transformations (e.g. png_set_quantize)
and this would invalidate the check. The palette checking init function
now makes a copy of png_struct::num_palette.
Fixed a bug in pngvalid error handling. A png_error in png_write_info is
not continuable (a valid image cannot necessarily be written afterward)
because the png_error aborts the write of subsequent pre-IDAT chunks.
In particular an abort as a result of a bogus colorspace information
(gAMA, cHRM, sBIT etc) prevents the write of the PLTE chunk.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

15
CHANGES
View File

@ -5356,6 +5356,21 @@ Version 1.7.0beta70 [December 1, 2015]
controlled by the size of the compression buffer.
Updated manual to require png_set_PLTE() to precede png_set_tRNS()
and png_set_hIST() if either is present.
Separated png_compress_IDAT into write/compress, removed some
trailing spaces and cleaned up pnglibconf.
Removed the side-effect on the png_struct palette of calling png_set_PLTE()
or png_set_tRNS(). This is a quiet API change; it was previously possible
to alter the palette on a PNG image by using png_set_PLTE, but this was
unintended and inconsistent with the other png_set APIs.
Fixed a bug in palette index checking; png_struct::num_palette could, in
principle, get changed by the transformations (e.g. png_set_quantize)
and this would invalidate the check. The palette checking init function
now makes a copy of png_struct::num_palette.
Fixed a bug in pngvalid error handling. A png_error in png_write_info is
not continuable (a valid image cannot necessarily be written afterward)
because the png_error aborts the write of subsequent pre-IDAT chunks.
In particular an abort as a result of a bogus colorspace information
(gAMA, cHRM, sBIT etc) prevents the write of the PLTE chunk.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit