PrusaSlicer-NonPlainar/src/libigl/igl/Singular_Value_Decomposition_Preamble.hpp
tamasmeszaros 2ae2672ee9 Building igl statically and moving to the dep scripts
Fixing dep build script on Windows and removing some warnings.

Use bundled igl by default.

Not building with the dependency scripts if not explicitly stated. This way, it will stay in
Fix the libigl patch to include C source files in header only mode.
2019-06-19 14:52:55 +02:00

78 lines
2.7 KiB
C++

//#####################################################################
// Copyright (c) 2010-2011, Eftychios Sifakis.
//
// Redistribution and use 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.
//
// 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 HOLDER 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.
//#####################################################################
#ifdef PRINT_DEBUGGING_OUTPUT
#include <iomanip>
#include <iostream>
#endif
// Prevent warnings
#ifdef ENABLE_SCALAR_IMPLEMENTATION
# undef ENABLE_SCALAR_IMPLEMENTATION
#endif
#ifdef ENABLE_SSE_IMPLEMENTATION
# undef ENABLE_SSE_IMPLEMENTATION
#endif
#ifdef ENABLE_AVX_IMPLEMENTATION
# undef ENABLE_AVX_IMPLEMENTATION
#endif
#ifdef USE_SCALAR_IMPLEMENTATION
#define ENABLE_SCALAR_IMPLEMENTATION(X) X
#else
#define ENABLE_SCALAR_IMPLEMENTATION(X)
#endif
#ifdef USE_SSE_IMPLEMENTATION
#define ENABLE_SSE_IMPLEMENTATION(X) X
#else
#define ENABLE_SSE_IMPLEMENTATION(X)
#endif
#ifdef USE_AVX_IMPLEMENTATION
#include <immintrin.h>
#define ENABLE_AVX_IMPLEMENTATION(X) X
#else
// Stefan: removed include. Why does it import MMX instructions, shouldn't this be under the #ifdef USE_SSE_IMPLEMENTATION above?
//#include <xmmintrin.h>
#define ENABLE_AVX_IMPLEMENTATION(X)
#endif
#ifdef USE_SCALAR_IMPLEMENTATION
// Alec: Why is this using sse intrinsics if it's supposed to be the scalar
// implementation?
#ifdef __SSE__
#include <mmintrin.h>
// Changed to inline
inline float rsqrt(const float f)
{
float buf[4];
buf[0]=f;
__m128 v=_mm_loadu_ps(buf);
v=_mm_rsqrt_ss(v);
_mm_storeu_ps(buf,v);
return buf[0];
}
#else
#include <cmath>
inline float rsqrt(const float f)
{
return 1./sqrtf(f);
}
#endif
#endif