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[libpng16] Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler

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(Bug report by Viktor Szaka'ts).
This commit is contained in:
Glenn Randers-Pehrson
2015-04-01 12:06:01 -05:00
parent 507a8cdc5e
commit c861dc8923
10 changed files with 31 additions and 21 deletions
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7
pngrtran.c
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@@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* Last changed in libpng 1.6.17 [March 26, 2015]
* Last changed in libpng 1.6.18 [(PENDING RELEASE)]
* Copyright (c) 1998-2015 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.)
@@ -4460,7 +4460,7 @@ png_do_expand(png_row_infop row_info, png_bytep row,
for (i = 0; i < row_width; i++)
{
if (*sp == gray)
if ((*sp & 0xff) == gray)
*dp-- = 0;
else
@@ -4478,7 +4478,8 @@ png_do_expand(png_row_infop row_info, png_bytep row,
dp = row + (row_info->rowbytes << 1) - 1;
for (i = 0; i < row_width; i++)
{
if (*(sp - 1) == gray_high && *(sp) == gray_low)
if ((*(sp - 1) & 0xff) == gray_high &&
(*(sp) & 0xff) == gray_low)
{
*dp-- = 0;
*dp-- = 0;