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[libpng16] Quieted a warning from clang-3.8 in pngtrans.c.

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Glenn Randers-Pehrson 2016-09-30 14:22:57 -05:00
parent 04dab1e82d
commit d84fd77bf8
3 changed files with 7 additions and 5 deletions
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5
ANNOUNCE
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@ -1,4 +1,4 @@
Libpng 1.6.26beta02 - September 26, 2016
Libpng 1.6.26beta02 - September 30, 2016
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.
@ -41,8 +41,9 @@ Version 1.6.26beta01 [September 26, 2016]
Add tests/badcrc.png and tests/badadler.png to tests/pngtest.
Merged pngtest.c with libpng-1.7.0beta84/pngtest.c
Version 1.6.26beta02 [September 26, 2016]
Version 1.6.26beta02 [September 30, 2016]
Updated the documentation about CRC and ADLER32 handling.
Quieted a warning from clang-3.8 in pngtrans.c.
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3
CHANGES
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@ -5719,8 +5719,9 @@ Version 1.6.26beta01 [September 26, 2016]
Add tests/badcrc.png and tests/badadler.png to tests/pngtest.
Merged pngtest.c with libpng-1.7.0beta84/pngtest.c
Version 1.6.26beta02 [September 26, 2016]
Version 1.6.26beta02 [September 30, 2016]
Updated the documentation about CRC and ADLER32 handling.
Quieted a warning from clang-3.8 in pngtrans.c.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

4
pngtrans.c
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@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* Last changed in libpng 1.6.24 [August 4, 2016]
* Last changed in libpng 1.6.26 [(PENDING RELEASE)]
* Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -693,7 +693,7 @@ png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
* and this calculation is used because it avoids warnings that other
* forms produced on either GCC or MSVC.
*/
int padding = (-row_info->pixel_depth * row_info->width) & 7;
int padding = ((256 - row_info->pixel_depth) * (row_info->width & 7)) & 7;
png_bytep rp = png_ptr->row_buf + row_info->rowbytes;
switch (row_info->bit_depth)