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[libpng17] Rearranged ARM-NEON optimizations to isolate the machine specific

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code to the hardware subdirectory, and add comments to pngrutil.c so that
implementors of other optimizations will know what to do.
This commit is contained in:
John Bowler
2012-12-14 23:12:16 -06:00
committed by Glenn Randers-Pehrson
parent eac85878bf
commit 0f2a5bac64
8 changed files with 110 additions and 67 deletions
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7
configure.ac
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@@ -241,8 +241,11 @@ AC_SUBST([AM_CCASFLAGS], [-Wa,--noexecstack])
AC_ARG_ENABLE([arm-neon],
AS_HELP_STRING([[[--enable-arm-neon]]], [Enable ARM NEON optimizations]),
[if test "${enableval}" = "yes"; then
AC_DEFINE([PNG_ARM_NEON], [1], [Enable ARM NEON optimizations])
AC_DEFINE([PNG_ALIGNED_MEMORY_SUPPORTED], [1], [Align row buffers])
AC_DEFINE([PNG_FILTER_OPTIMIZATIONS],
[png_init_filter_functions_neon],
[ARM NEON filter initialization function])
AC_DEFINE([PNG_ALIGNED_MEMORY_SUPPORTED], [1],
[Align row buffers])
fi])
AM_CONDITIONAL([PNG_ARM_NEON], [test "${enable_arm_neon:-no}" = yes])