183 lines
4.4 KiB
C++
183 lines
4.4 KiB
C++
///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2012, Industrial Light & Magic, a division of Lucas
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// Digital Ltd. LLC
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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///////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDED_IMF_COMPILER_SPECIFIC_H
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#define INCLUDED_IMF_COMPILER_SPECIFIC_H
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#include "ImfNamespace.h"
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#include "ImfSimd.h"
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#include <stdlib.h>
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#include "ImfExport.h"
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OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
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static unsigned long systemEndianCheckValue = 0x12345678;
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static unsigned long* systemEndianCheckPointer = &systemEndianCheckValue;
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// EXR files are little endian - check processor architecture is too
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// (optimisation currently not supported for big endian machines)
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static bool GLOBAL_SYSTEM_LITTLE_ENDIAN =
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(*(unsigned char*)systemEndianCheckPointer == 0x78 ? true : false);
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#ifdef IMF_HAVE_SSE2
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#if defined(__GNUC__)
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// Causes issues on certain gcc versions
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//#define EXR_FORCEINLINE inline __attribute__((always_inline))
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#define EXR_FORCEINLINE inline
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#define EXR_RESTRICT __restrict
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static void* EXRAllocAligned(size_t size, size_t alignment)
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{
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// GNUC is used for things like mingw to (cross-)compile for windows
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#ifdef _WIN32
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return _aligned_malloc(size, alignment);
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#elif defined(__ANDROID__)
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return memalign(alignment, size);
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#else
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void* ptr = 0;
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posix_memalign(&ptr, alignment, size);
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return ptr;
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#endif
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}
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static void EXRFreeAligned(void* ptr)
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{
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#ifdef _WIN32
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_aligned_free(ptr);
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#else
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free(ptr);
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#endif
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}
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#elif defined _MSC_VER
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#define EXR_FORCEINLINE __forceinline
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#define EXR_RESTRICT __restrict
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static void* EXRAllocAligned(size_t size, size_t alignment)
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{
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return _aligned_malloc(size, alignment);
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}
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static void EXRFreeAligned(void* ptr)
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{
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_aligned_free(ptr);
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}
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#elif defined (__INTEL_COMPILER) || \
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defined(__ICL) || \
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defined(__ICC) || \
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defined(__ECC)
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#define EXR_FORCEINLINE inline
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#define EXR_RESTRICT restrict
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static void* EXRAllocAligned(size_t size, size_t alignment)
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{
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return _mm_malloc(size, alignment);
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}
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static void EXRFreeAligned(void* ptr)
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{
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_mm_free(ptr);
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}
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#else
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// generic compiler
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#define EXR_FORCEINLINE inline
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#define EXR_RESTRICT
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static void* EXRAllocAligned(size_t size, size_t alignment)
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{
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return malloc(size);
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}
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static void EXRFreeAligned(void* ptr)
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{
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free(ptr);
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}
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#endif // compiler switch
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#else // IMF_HAVE_SSE2
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#define EXR_FORCEINLINE inline
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#define EXR_RESTRICT
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static void* EXRAllocAligned(size_t size, size_t alignment)
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{
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return malloc(size);
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}
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static void EXRFreeAligned(void* ptr)
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{
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free(ptr);
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}
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#endif // IMF_HAVE_SSE2
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//
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// Simple CPUID based runtime detection of various capabilities
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//
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class IMF_EXPORT CpuId
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{
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public:
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CpuId();
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bool sse2;
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bool sse3;
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bool ssse3;
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bool sse4_1;
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bool sse4_2;
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bool avx;
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bool f16c;
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};
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OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
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#endif //include guard
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