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* [lpng] Adjustment: Update libpng to version 1.6.37.

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This commit is contained in:
Robert MacGregor 2021-10-12 22:04:36 -04:00
parent c0ff69a2e6
commit 2f3215c4fb
475 changed files with 110673 additions and 2682 deletions
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34
Engine/lib/lpng/contrib/powerpc-vsx/linux_aux.c Normal file
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/* contrib/powerpc-vsx/linux_aux.c
*
* Copyright (c) 2017 Glenn Randers-Pehrson
* Written by Vadim Barkov, 2017.
* Last changed in libpng 1.6.29 [March 16, 2017]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* STATUS: TESTED
* BUG REPORTS: png-mng-implement@sourceforge.net
*
* png_have_vsx implemented for Linux by using the auxiliary vector mechanism.
*
* This code is strict ANSI-C and is probably moderately portable; it does
* however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
*/
#include "sys/auxv.h"
#include "png.h"
static int
png_have_vsx(png_structp png_ptr)
{
unsigned long auxv = getauxval(AT_HWCAP);
PNG_UNUSED(png_ptr)
if(auxv & (PPC_FEATURE_HAS_ALTIVEC|PPC_FEATURE_HAS_VSX))
return 1;
else
return 0;
}