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Added VSX code to libconfig scripts

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This commit is contained in:
Vadim Barkov 2017-02-12 12:14:03 +00:00
parent 29775cef5e
commit 3644db298b
2 changed files with 29 additions and 0 deletions
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27
scripts/pnglibconf.dfa
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@ -229,6 +229,33 @@ option ARM_NEON_API disabled requires ALIGNED_MEMORY enables SET_OPTION,
option ARM_NEON_CHECK disabled requires ALIGNED_MEMORY,
sets ARM_NEON_OPT 1
# These options are specific to the PowerPC VSX hardware optimizations.
#
# POWERPC_VSX_OPT: unset: check at compile time (__PPC64__,__ALTIVEC__,__VSX__
# must be defined by the compiler, typically as a result
# of specifying
# "-mvsx -maltivec" compiler flags)
# 0: disable (even if the CPU supports VSX.)
# 1: check at run time (via POWERPC_VSX_{API,CHECK})
# 2: switch on unconditionally (inadvisable - instead pass
# -mvsx -maltivec to compiler options)
# When building libpng avoid using any setting other than '0'; '1' is
# set automatically when either 'API' or 'CHECK' are configured in,
# '2' should not be necessary as "-mvsx -maltivec" will achieve the same
# effect as well as applying VSX optimizations to the rest of the
# libpng code.
# POWERPC_VSX_API: (PNG_POWERPC_VSX == 1) allow the optimization to be switched on
# with png_set_option
# POWERPC_VSX_CHECK: (PNG_POWERPC_VSX == 1) compile a run-time check to see if VSX
# extensions are supported. This is supported not for all OSes
# (see contrib/powerpc/README)
setting POWERPC_VSX_OPT
option POWERPC_VSX_API disabled enables SET_OPTION,
sets POWERPC_VSX_OPT 1
option POWERPC_VSX_CHECK disabled,
sets POWERPC_VSX_OPT 1
# These settings configure the default compression level (0-9) and 'strategy';
# strategy is as defined by the implementors of zlib. It describes the input
# data and modifies the zlib parameters in an attempt to optimize the balance

2
scripts/pnglibconf.h.prebuilt
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@ -20,6 +20,8 @@
#define PNG_ALIGNED_MEMORY_SUPPORTED
/*#undef PNG_ARM_NEON_API_SUPPORTED*/
/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
#define PNG_BENIGN_ERRORS_SUPPORTED
#define PNG_BENIGN_READ_ERRORS_SUPPORTED
/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/