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///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2012, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
//
// All rights reserved.
//
// 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.
// * Neither the name of Industrial Light & Magic nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// 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.
//
///////////////////////////////////////////////////////////////////////////
#ifndef INCLUDED_IMF_COMPILER_SPECIFIC_H
#define INCLUDED_IMF_COMPILER_SPECIFIC_H
#include <ImfNamespace.h>
#include <ImfSimd.h>
#include <stdlib.h>
#include "ImfExport.h"
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
static unsigned long systemEndianCheckValue = 0x12345678;
static unsigned long* systemEndianCheckPointer = &systemEndianCheckValue;
// EXR files are little endian - check processor architecture is too
// (optimisation currently not supported for big endian machines)
static bool GLOBAL_SYSTEM_LITTLE_ENDIAN =
(*(unsigned char*)systemEndianCheckPointer == 0x78 ? true : false);
#ifdef IMF_HAVE_SSE2
#ifdef __GNUC__
// Causes issues on certain gcc versions
//#define EXR_FORCEINLINE inline __attribute__((always_inline))
#define EXR_FORCEINLINE inline
#define EXR_RESTRICT __restrict
static void* EXRAllocAligned(size_t size, size_t alignment)
{
void* ptr = 0;
posix_memalign(&ptr, alignment, size);
return ptr;
}
static void EXRFreeAligned(void* ptr)
{
free(ptr);
}
#elif defined _MSC_VER
#define EXR_FORCEINLINE __forceinline
#define EXR_RESTRICT __restrict
static void* EXRAllocAligned(size_t size, size_t alignment)
{
return _aligned_malloc(size, alignment);
}
static void EXRFreeAligned(void* ptr)
{
_aligned_free(ptr);
}
#elif defined (__INTEL_COMPILER) || \
defined(__ICL) || \
defined(__ICC) || \
defined(__ECC)
#define EXR_FORCEINLINE inline
#define EXR_RESTRICT restrict
static void* EXRAllocAligned(size_t size, size_t alignment)
{
return _mm_malloc(size, alignment);
}
static void EXRFreeAligned(void* ptr)
{
_mm_free(ptr);
}
#else
// generic compiler
#define EXR_FORCEINLINE inline
#define EXR_RESTRICT
static void* EXRAllocAligned(size_t size, size_t alignment)
{
return malloc(size);
}
static void EXRFreeAligned(void* ptr)
{
free(ptr);
}
#endif // compiler switch
#else // IMF_HAVE_SSE2
#define EXR_FORCEINLINE inline
#define EXR_RESTRICT
static void* EXRAllocAligned(size_t size, size_t alignment)
{
return malloc(size);
}
static void EXRFreeAligned(void* ptr)
{
free(ptr);
}
#endif // IMF_HAVE_SSE2
//
// Simple CPUID based runtime detection of various capabilities
//
class IMF_EXPORT CpuId
{
public:
CpuId();
bool sse2;
bool sse3;
bool ssse3;
bool sse4_1;
bool sse4_2;
bool avx;
bool f16c;
};
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
#endif //include guard
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