cpu.h

00001 /* libFLAC - Free Lossless Audio Codec library
00002  * Copyright (C) 2001-2009  Josh Coalson
00003  * Copyright (C) 2011-2014  Xiph.Org Foundation
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  *
00009  * - Redistributions of source code must retain the above copyright
00010  * notice, this list of conditions and the following disclaimer.
00011  *
00012  * - Redistributions in binary form must reproduce the above copyright
00013  * notice, this list of conditions and the following disclaimer in the
00014  * documentation and/or other materials provided with the distribution.
00015  *
00016  * - Neither the name of the Xiph.org Foundation nor the names of its
00017  * contributors may be used to endorse or promote products derived from
00018  * this software without specific prior written permission.
00019  *
00020  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00021  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00022  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00023  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
00024  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00025  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00026  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00027  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00028  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00029  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00030  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031  */
00032 
00033 #ifndef FLAC__PRIVATE__CPU_H
00034 #define FLAC__PRIVATE__CPU_H
00035 
00036 #include "FLAC/ordinals.h"
00037 
00038 #ifdef HAVE_CONFIG_H
00039 #include <config.h>
00040 #endif
00041 
00042 #if defined FLAC__HAS_X86INTRIN
00043 /* SSE intrinsics support by ICC/MSVC/GCC */
00044 #if defined __INTEL_COMPILER
00045   #define FLAC__SSE_TARGET(x)
00046   #define FLAC__SSE_SUPPORTED 1
00047   #define FLAC__SSE2_SUPPORTED 1
00048   #if (__INTEL_COMPILER >= 1000) /* Intel C++ Compiler 10.0 */
00049     #define FLAC__SSSE3_SUPPORTED 1
00050     #define FLAC__SSE4_1_SUPPORTED 1
00051   #endif
00052   #if (__INTEL_COMPILER >= 1110) /* Intel C++ Compiler 11.1 */
00053     #define FLAC__AVX_SUPPORTED 1
00054   #endif
00055   #if (__INTEL_COMPILER >= 1300) /* Intel C++ Compiler 13.0 */
00056     #define FLAC__AVX2_SUPPORTED 1
00057     #define FLAC__FMA_SUPPORTED 1
00058   #endif
00059 #elif defined _MSC_VER
00060   #define FLAC__SSE_TARGET(x)
00061   #define FLAC__SSE_SUPPORTED 1
00062   #define FLAC__SSE2_SUPPORTED 1
00063   #if (_MSC_VER >= 1500) /* MS Visual Studio 2008 */
00064     #define FLAC__SSSE3_SUPPORTED 1
00065     #define FLAC__SSE4_1_SUPPORTED 1
00066   #endif
00067   #if (_MSC_FULL_VER >= 160040219) /* MS Visual Studio 2010 SP1 */
00068     #define FLAC__AVX_SUPPORTED 1
00069   #endif
00070   #if (_MSC_VER >= 1700) /* MS Visual Studio 2012 */
00071     #define FLAC__AVX2_SUPPORTED 1
00072     #define FLAC__FMA_SUPPORTED 1
00073   #endif
00074 #elif defined __GNUC__
00075   #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* since GCC 4.9 -msse.. compiler options aren't necessary */
00076     #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
00077     #define FLAC__SSE_SUPPORTED 1
00078     #define FLAC__SSE2_SUPPORTED 1
00079     #define FLAC__SSSE3_SUPPORTED 1
00080     #define FLAC__SSE4_1_SUPPORTED 1
00081     #define FLAC__AVX_SUPPORTED 1
00082     #define FLAC__AVX2_SUPPORTED 1
00083     #define FLAC__FMA_SUPPORTED 1
00084   #else /* for GCC older than 4.9 */
00085     #define FLAC__SSE_TARGET(x)
00086     #ifdef __SSE__
00087       #define FLAC__SSE_SUPPORTED 1
00088     #endif
00089     #ifdef __SSE2__
00090       #define FLAC__SSE2_SUPPORTED 1
00091     #endif
00092     #ifdef __SSSE3__
00093       #define FLAC__SSSE3_SUPPORTED 1
00094     #endif
00095     #ifdef __SSE4_1__
00096       #define FLAC__SSE4_1_SUPPORTED 1
00097     #endif
00098     #ifdef __AVX__
00099       #define FLAC__AVX_SUPPORTED 1
00100     #endif
00101     #ifdef __AVX2__
00102       #define FLAC__AVX2_SUPPORTED 1
00103     #endif
00104     #ifdef __FMA__
00105       #define FLAC__FMA_SUPPORTED 1
00106     #endif
00107   #endif /* GCC version */
00108 #endif /* compiler version */
00109 #endif /* intrinsics support */
00110 
00111 typedef enum {
00112     FLAC__CPUINFO_TYPE_IA32,
00113     FLAC__CPUINFO_TYPE_X86_64,
00114     FLAC__CPUINFO_TYPE_UNKNOWN
00115 } FLAC__CPUInfo_Type;
00116 
00117 #if defined FLAC__CPU_IA32
00118 typedef struct {
00119     FLAC__bool cmov;
00120     FLAC__bool mmx;
00121     FLAC__bool sse;
00122     FLAC__bool sse2;
00123 
00124     FLAC__bool sse3;
00125     FLAC__bool ssse3;
00126     FLAC__bool sse41;
00127     FLAC__bool sse42;
00128     FLAC__bool avx;
00129     FLAC__bool avx2;
00130     FLAC__bool fma;
00131 } FLAC__CPUInfo_IA32;
00132 #elif defined FLAC__CPU_X86_64
00133 typedef struct {
00134     FLAC__bool sse3;
00135     FLAC__bool ssse3;
00136     FLAC__bool sse41;
00137     FLAC__bool sse42;
00138     FLAC__bool avx;
00139     FLAC__bool avx2;
00140     FLAC__bool fma;
00141 } FLAC__CPUInfo_x86;
00142 #endif
00143 
00144 typedef struct {
00145     FLAC__bool use_asm;
00146     FLAC__CPUInfo_Type type;
00147 #if defined FLAC__CPU_IA32
00148     FLAC__CPUInfo_IA32 ia32;
00149 #elif defined FLAC__CPU_X86_64
00150     FLAC__CPUInfo_x86 x86;
00151 #endif
00152 } FLAC__CPUInfo;
00153 
00154 void FLAC__cpu_info(FLAC__CPUInfo *info);
00155 
00156 #ifndef FLAC__NO_ASM
00157 # if defined FLAC__CPU_IA32 && defined FLAC__HAS_NASM
00158 FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32(void);
00159 void         FLAC__cpu_info_asm_ia32(FLAC__uint32 *flags_edx, FLAC__uint32 *flags_ecx);
00160 # endif
00161 # if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
00162 FLAC__uint32 FLAC__cpu_have_cpuid_x86(void);
00163 void         FLAC__cpu_info_x86(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx);
00164 FLAC__uint32 FLAC__cpu_xgetbv_x86(void);
00165 # endif
00166 #endif
00167 
00168 #endif