da1f80c1f2
This reverts commit 78b22393a8.
It caused a regression in FBX import leading to crashes.
Fixes #36908.
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/*
|
|
---------------------------------------------------------------------------
|
|
Open Asset Import Library (assimp)
|
|
---------------------------------------------------------------------------
|
|
|
|
Copyright (c) 2006-2019, assimp team
|
|
|
|
|
|
|
|
All rights reserved.
|
|
|
|
Redistribution and use of this software in source and binary forms,
|
|
with or without modification, are permitted provided that the following
|
|
conditions are met:
|
|
|
|
* Redistributions of source code must retain the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer in the documentation and/or other
|
|
materials provided with the distribution.
|
|
|
|
* Neither the name of the assimp team, nor the names of its
|
|
contributors may be used to endorse or promote products
|
|
derived from this software without specific prior
|
|
written permission of the assimp team.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
---------------------------------------------------------------------------
|
|
*/
|
|
#include "simd.h"
|
|
|
|
namespace Assimp {
|
|
|
|
bool CPUSupportsSSE2() {
|
|
#if defined(__x86_64__) || defined(_M_X64)
|
|
//* x86_64 always has SSE2 instructions */
|
|
return true;
|
|
#elif defined(__GNUC__) && defined(i386)
|
|
// for GCC x86 we check cpuid
|
|
unsigned int d;
|
|
__asm__(
|
|
"pushl %%ebx\n\t"
|
|
"cpuid\n\t"
|
|
"popl %%ebx\n\t"
|
|
: "=d" ( d )
|
|
:"a" ( 1 ) );
|
|
return ( d & 0x04000000 ) != 0;
|
|
#elif (defined(_MSC_VER) && defined(_M_IX86))
|
|
// also check cpuid for MSVC x86
|
|
unsigned int d;
|
|
__asm {
|
|
xor eax, eax
|
|
inc eax
|
|
push ebx
|
|
cpuid
|
|
pop ebx
|
|
mov d, edx
|
|
}
|
|
return ( d & 0x04000000 ) != 0;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
|
|
} // Namespace Assimp
|