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[libpng17] Removed #ifdef PNG_16BIT_SUPPORTED/#endif around png_product2(); it is

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needed by png_reciprocal2().
Added #ifdef PNG_16BIT_SUPPORTED/#endif around png_log16bit() and
    png_do_swap().
This commit is contained in:
Glenn Randers-Pehrson 2014-11-06 21:14:16 -06:00
parent 05dcaffd38
commit 9c0b5ab848
5 changed files with 20 additions and 8 deletions
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8
ANNOUNCE
View File

@ -1,5 +1,5 @@
Libpng 1.7.0beta41 - November 6, 2014
Libpng 1.7.0beta41 - November 7, 2014
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.
@ -643,7 +643,11 @@ Version 1.7.0beta40 [November 6, 2014]
numeric constant. This adds appropriate, safe, casts to make the
warnings go away.
Version 1.7.0beta41 [November 6, 2014]
Version 1.7.0beta41 [November 7, 2014]
Removed #ifdef PNG_16BIT_SUPPORTED/#endif around png_product2(); it is
needed by png_reciprocal2().
Added #ifdef PNG_16BIT_SUPPORTED/#endif around png_log16bit() and
png_do_swap().
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

6
CHANGES
View File

@ -4932,7 +4932,11 @@ Version 1.7.0beta40 [November 6, 2014]
numeric constant. This adds appropriate, safe, casts to make the
warnings go away.
Version 1.7.0beta41 [November 6, 2014]
Version 1.7.0beta41 [November 7, 2014]
Removed #ifdef PNG_16BIT_SUPPORTED/#endif around png_product2(); it is
needed by png_reciprocal2().
Added #ifdef PNG_16BIT_SUPPORTED/#endif around png_log16bit() and
png_do_swap().
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

10
png.c
View File

@ -691,13 +691,13 @@ png_get_copyright(png_const_structrp png_ptr)
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
"libpng version 1.7.0beta41 - November 6, 2014" PNG_STRING_NEWLINE \
"libpng version 1.7.0beta41 - November 7, 2014" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE;
# else
return "libpng version 1.7.0beta41 - November 6, 2014\
return "libpng version 1.7.0beta41 - November 7, 2014\
Copyright (c) 1998-2014 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@ -3277,7 +3277,7 @@ png_gamma_significant(png_fixed_point gamma_val)
#ifdef PNG_READ_GAMMA_SUPPORTED
/* A local convenience routine. */
#ifndef PNG_FLOATING_ARITHMETIC_SUPPORTED
#if defined(PNG_16BIT_SUPPORTED) || !defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)
static png_fixed_point
png_product2(png_fixed_point a, png_fixed_point b)
{
@ -3298,7 +3298,7 @@ png_product2(png_fixed_point a, png_fixed_point b)
return 0; /* overflow */
}
#endif
#endif /* PNG_16BIT_SUPPORTED || !PNG_FLOATING_ARITHMETIC_SUPPORTED */
/* The inverse of the above. */
png_fixed_point
@ -3450,6 +3450,7 @@ png_log8bit(unsigned int x)
* Zero (257): 0
* End (258): 23499
*/
#ifdef PNG_16BIT_SUPPORTED
static png_int_32
png_log16bit(png_uint_32 x)
{
@ -3500,6 +3501,7 @@ png_log16bit(png_uint_32 x)
/* Safe, because the result can't have more than 20 bits: */
return (png_int_32)((lg2 + 2048) >> 12);
}
#endif /* 16BIT */
/* The 'exp()' case must invert the above, taking a 20-bit fixed point
* logarithmic value and returning a 16 or 8-bit number as appropriate. In

2
pngrtran.c
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@ -4858,7 +4858,7 @@ png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
{
{
if (png_ptr->read_user_transform_fn != NULL)
(*(png_ptr->read_user_transform_fn)) /* User read transform function */
(png_ptr, /* png_ptr */

2
pngwtran.c
View File

@ -538,8 +538,10 @@ png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
#endif
#ifdef PNG_WRITE_SWAP_SUPPORTED
# ifdef PNG_16BIT_SUPPORTED
if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
png_do_swap(row_info, png_ptr->row_buf + 1);
# endif
#endif
#ifdef PNG_WRITE_SHIFT_SUPPORTED