• cpu.h
  • /* libFLAC - Free Lossless Audio Codec library
     * Copyright (C) 2001-2009  Josh Coalson
     * Copyright (C) 2011-2025  Xiph.Org Foundation
     *
     * 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 the Xiph.org Foundation 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 FOUNDATION 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 FLAC__PRIVATE__CPU_H
    #define FLAC__PRIVATE__CPU_H
    
    #include "FLAC/ordinals.h"
    
    #ifdef HAVE_CONFIG_H
    #include <config.h>
    #endif
    
    #ifndef FLAC__CPU_X86_64
    
    #if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
    #define FLAC__CPU_X86_64
    #endif
    
    #endif
    
    #ifndef FLAC__CPU_IA32
    
    #if defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86)
    #define FLAC__CPU_IA32
    #endif
    
    #endif
    
    #ifndef __has_attribute
    #define __has_attribute(x) 0
    #endif
    
    #if FLAC__HAS_X86INTRIN
    /* SSE intrinsics support by ICC/MSVC/GCC */
    #if defined __INTEL_COMPILER
      #define FLAC__SSE_TARGET(x)
      #define FLAC__SSE_SUPPORTED 1
      #define FLAC__SSE2_SUPPORTED 1
      #if (__INTEL_COMPILER >= 1000) /* Intel C++ Compiler 10.0 */
        #define FLAC__SSSE3_SUPPORTED 1
        #define FLAC__SSE4_1_SUPPORTED 1
        #define FLAC__SSE4_2_SUPPORTED 1
      #endif
      #ifdef FLAC__USE_AVX
        #if (__INTEL_COMPILER >= 1110) /* Intel C++ Compiler 11.1 */
          #define FLAC__AVX_SUPPORTED 1
        #endif
        #if (__INTEL_COMPILER >= 1300) /* Intel C++ Compiler 13.0 */
          #define FLAC__AVX2_SUPPORTED 1
          #define FLAC__FMA_SUPPORTED 1
        #endif
      #endif
    #elif defined __clang__ && __has_attribute(__target__) /* clang */
      #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
      #define FLAC__SSE_SUPPORTED 1
      #define FLAC__SSE2_SUPPORTED 1
      #define FLAC__SSSE3_SUPPORTED 1
      #define FLAC__SSE4_1_SUPPORTED 1
      #define FLAC__SSE4_2_SUPPORTED 1
      #ifdef FLAC__USE_AVX
        #define FLAC__AVX_SUPPORTED 1
        #define FLAC__AVX2_SUPPORTED 1
        #define FLAC__FMA_SUPPORTED 1
        #define FLAC__BMI2_SUPPORTED 1
      #endif
    #elif defined __GNUC__ && !defined __clang__ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* GCC 4.9+ */
      #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
      #define FLAC__SSE_SUPPORTED 1
      #define FLAC__SSE2_SUPPORTED 1
      #define FLAC__SSSE3_SUPPORTED 1
      #define FLAC__SSE4_1_SUPPORTED 1
      #define FLAC__SSE4_2_SUPPORTED 1
      #ifdef FLAC__USE_AVX
        #define FLAC__AVX_SUPPORTED 1
        #define FLAC__AVX2_SUPPORTED 1
        #define FLAC__FMA_SUPPORTED 1
        #define FLAC__BMI2_SUPPORTED 1
      #endif
    #elif defined _MSC_VER
      #define FLAC__SSE_TARGET(x)
      #define FLAC__SSE_SUPPORTED 1
      #define FLAC__SSE2_SUPPORTED 1
      #if (_MSC_VER >= 1500) /* MS Visual Studio 2008 */
        #define FLAC__SSSE3_SUPPORTED 1
        #define FLAC__SSE4_1_SUPPORTED 1
        #define FLAC__SSE4_2_SUPPORTED 1
      #endif
      #ifdef FLAC__USE_AVX
        #if (_MSC_FULL_VER >= 160040219) /* MS Visual Studio 2010 SP1 */
          #define FLAC__AVX_SUPPORTED 1
        #endif
        #if (_MSC_VER >= 1700) /* MS Visual Studio 2012 */
          #define FLAC__AVX2_SUPPORTED 1
          #define FLAC__FMA_SUPPORTED 1
        #endif
      #endif
    #else
      #define FLAC__SSE_TARGET(x)
      #ifdef __SSE__
        #define FLAC__SSE_SUPPORTED 1
      #endif
      #ifdef __SSE2__
        #define FLAC__SSE2_SUPPORTED 1
      #endif
      #ifdef __SSSE3__
        #define FLAC__SSSE3_SUPPORTED 1
      #endif
      #ifdef __SSE4_1__
        #define FLAC__SSE4_1_SUPPORTED 1
      #endif
      #ifdef __SSE4_2__
        #define FLAC__SSE4_2_SUPPORTED 1
      #endif
      #ifdef FLAC__USE_AVX
        #ifdef __AVX__
          #define FLAC__AVX_SUPPORTED 1
        #endif
        #ifdef __AVX2__
          #define FLAC__AVX2_SUPPORTED 1
        #endif
        #ifdef __FMA__
          #define FLAC__FMA_SUPPORTED 1
        #endif
      #endif
    #endif /* compiler version */
    #endif /* intrinsics support */
    
    
    #ifndef FLAC__AVX_SUPPORTED
    #define FLAC__AVX_SUPPORTED 0
    #endif
    
    typedef enum {
    	FLAC__CPUINFO_TYPE_IA32,
    	FLAC__CPUINFO_TYPE_X86_64,
    	FLAC__CPUINFO_TYPE_UNKNOWN
    } FLAC__CPUInfo_Type;
    
    typedef struct {
    	FLAC__bool intel;
    
    	FLAC__bool cmov;
    	FLAC__bool mmx;
    	FLAC__bool sse;
    	FLAC__bool sse2;
    
    	FLAC__bool sse3;
    	FLAC__bool ssse3;
    	FLAC__bool sse41;
    	FLAC__bool sse42;
    	FLAC__bool avx;
    	FLAC__bool avx2;
    	FLAC__bool fma;
    	FLAC__bool bmi2;
    } FLAC__CPUInfo_x86;
    
    typedef struct {
    	FLAC__bool use_asm;
    	FLAC__CPUInfo_Type type;
    	FLAC__CPUInfo_x86 x86;
    } FLAC__CPUInfo;
    
    void FLAC__cpu_info(FLAC__CPUInfo *info);
    
    FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32(void);
    
    void         FLAC__cpu_info_asm_ia32(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx);
    
    #endif