cheng/libpng
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[libpng16] Added PNG_USE_ARM_NEON configuration flag (Marcin Juszkiewicz).

Browse Source
This commit is contained in:
Glenn Randers-Pehrson 2014-11-03 08:24:34 -06:00
parent bd3818eb1b
commit 3278452323
4 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
ANNOUNCE
View File

@ -1,4 +1,4 @@
Libpng 1.6.15beta03 - November 1, 2014
Libpng 1.6.15beta03 - November 3, 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.
@ -33,7 +33,8 @@ Version 1.6.15beta01 [October 29, 2014]
Version 1.6.15beta02 [November 1, 2014]
Changed remaining "if (!x)" to "if (x == 0)" and "if (x)" to "if (x !== 0)"
Version 1.6.15beta03 [November 1, 2014]
Version 1.6.15beta03 [November 3, 2014]
Added PNG_USE_ARM_NEON configuration flag (Marcin Juszkiewicz).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

3
CHANGES
View File

@ -5041,7 +5041,8 @@ Version 1.6.15beta01 [October 29, 2014]
Version 1.6.15beta02 [November 1, 2014]
Changed remaining "if (!x)" to "if (x == 0)" and "if (x)" to "if (x !== 0)"
Version 1.6.15beta03 [November 1, 2014]
Version 1.6.15beta03 [November 3, 2014]
Added PNG_USE_ARM_NEON configuration flag (Marcin Juszkiewicz).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

4
configure.ac
View File

@ -283,17 +283,21 @@ 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]

4
pngpriv.h
View File

@ -123,8 +123,8 @@
* Note that gcc-4.9 defines __ARM_NEON instead of __ARM_NEON__, so we
* check both variants.
*/
# if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# if defined(PNG_USE_ARM_NEON) && (defined(__ARM_NEON__) || \
defined(__ARM_NEON)) && defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# define PNG_ARM_NEON_OPT 2
# else
# define PNG_ARM_NEON_OPT 0