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[libpng16] Removed new PNG_USE_ARM_NEON configuration flag and made a one-line

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revision to configure.ac to support ARM on aarch64 instead (John Bowler).
This commit is contained in:
John Bowler 2014-11-03 19:44:39 -06:00 committed by Glenn Randers-Pehrson
parent 2eb712e519
commit 445475a166
4 changed files with 11 additions and 11 deletions
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6
ANNOUNCE
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@ -1,4 +1,4 @@
Libpng 1.6.15beta04 - November 3, 2014
Libpng 1.6.15beta04 - November 4, 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.
@ -36,7 +36,9 @@ Version 1.6.15beta02 [November 1, 2014]
Version 1.6.15beta03 [November 3, 2014]
Added PNG_USE_ARM_NEON configuration flag (Marcin Juszkiewicz).
Version 1.6.15beta04 [November 3, 2014]
Version 1.6.15beta04 [November 4, 2014]
Removed new PNG_USE_ARM_NEON configuration flag and made a one-line
revision to configure.ac to support ARM on aarch64 instead (John Bowler).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

4
CHANGES
View File

@ -5044,7 +5044,9 @@ Version 1.6.15beta02 [November 1, 2014]
Version 1.6.15beta03 [November 3, 2014]
Added PNG_USE_ARM_NEON configuration flag (Marcin Juszkiewicz).
Version 1.6.15beta04 [November 3, 2014]
Version 1.6.15beta04 [November 4, 2014]
Removed new PNG_USE_ARM_NEON configuration flag and made a one-line
revision to configure.ac to support ARM on aarch64 instead (John Bowler).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

6
configure.ac
View File

@ -283,21 +283,17 @@ AC_ARG_ENABLE([arm-neon],
[case "$enableval" in
no|off)
# disable the default enabling on __ARM_NEON__ systems:
AC_DEFINE([PNG_USE_ARM_NEON], [], [ARM NEON support])
AC_DEFINE([PNG_ARM_NEON_OPT], [0],
[Disable ARM Neon optimizations])
# Prevent inclusion of the assembler files below:
enable_arm_neon=no;;
check)
AC_DEFINE([PNG_USE_ARM_NEON], [], [ARM NEON support])
AC_DEFINE([PNG_ARM_NEON_CHECK_SUPPORTED], [],
[Check for ARM Neon support at run-time]);;
api)
AC_DEFINE([PNG_USE_ARM_NEON], [], [ARM NEON support])
AC_DEFINE([PNG_ARM_NEON_API_SUPPORTED], [],
[Turn on ARM Neon optimizations at run-time]);;
yes|on)
AC_DEFINE([PNG_USE_ARM_NEON], [], [ARM NEON support])
AC_DEFINE([PNG_ARM_NEON_OPT], [2],
[Enable ARM Neon optimizations])
AC_MSG_WARN([--enable-arm-neon: please specify 'check' or 'api', if]
@ -314,7 +310,7 @@ AC_ARG_ENABLE([arm-neon],
AM_CONDITIONAL([PNG_ARM_NEON],
[test "$enable_arm_neon" != 'no' &&
case "$host_cpu" in
arm*) :;;
arm*|aarch64*) :;;
*) test "$enable_arm_neon" != '';;
esac])

6
pngpriv.h
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@ -6,7 +6,7 @@
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* Last changed in libpng 1.6.15 [(PENDING RELEASE)]]
* Last changed in libpng 1.6.10 [March 6, 1014]]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@ -123,8 +123,8 @@
* Note that gcc-4.9 defines __ARM_NEON instead of __ARM_NEON__, so we
* check both variants.
*/
# if defined(PNG_USE_ARM_NEON) && (defined(__ARM_NEON__) || \
defined(__ARM_NEON)) && defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# define PNG_ARM_NEON_OPT 2
# else
# define PNG_ARM_NEON_OPT 0