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[libpng16] Mention in manual that 16-bit platform support has been dropped.

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Glenn Randers-Pehrson
2015-08-16 23:32:04 -05:00
parent 751cee5ef1
commit b9ba8d6a57
6 changed files with 27 additions and 26 deletions
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12
pngrutil.c
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@@ -85,10 +85,10 @@ png_int_32 (PNGAPI
png_get_int_32)(png_const_bytep buf)
{
png_uint_32 uval = png_get_uint_32(buf);
if ((uval & 0x80000000) == 0) /* non-negative */
if ((uval & 0x80000000UL) == 0) /* non-negative */
return uval;
uval = (uval ^ 0xffffffff) + 1; /* 2's complement: -x = ~x+1 */
uval = (uval ^ 0xffffffffUL) + 1; /* 2's complement: -x = ~x+1 */
return -(png_int_32)uval;
}
@@ -3120,10 +3120,10 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
# define PNG_LSR(x,s) ((x)>>(s))
# define PNG_LSL(x,s) ((x)<<(s))
# endif
# define S_COPY(p,x) (((p)<4 ? PNG_LSR(0x80088822,(3-(p))*8+(7-(x))) :\
PNG_LSR(0xaa55ff00,(7-(p))*8+(7-(x)))) & 1)
# define B_COPY(p,x) (((p)<4 ? PNG_LSR(0xff0fff33,(3-(p))*8+(7-(x))) :\
PNG_LSR(0xff55ff00,(7-(p))*8+(7-(x)))) & 1)
# define S_COPY(p,x) (((p)<4 ? PNG_LSR(0x80088822UL,(3-(p))*8+(7-(x))) :\
PNG_LSR(0xaa55ff00UL,(7-(p))*8+(7-(x)))) & 1)
# define B_COPY(p,x) (((p)<4 ? PNG_LSR(0xff0fff33UL,(3-(p))*8+(7-(x))) :\
PNG_LSR(0xff55ff00UL,(7-(p))*8+(7-(x)))) & 1)
/* Return a mask for pass 'p' pixel 'x' at depth 'd'. The mask is
* little endian - the first pixel is at bit 0 - however the extra