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vlc_cpu.h
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1 /*****************************************************************************
2  * vlc_cpu.h: CPU capabilities
3  *****************************************************************************
4  * Copyright (C) 1998-2009 VLC authors and VideoLAN
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU Lesser General Public License as published by
8  * the Free Software Foundation; either version 2.1 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public License
17  * along with this program; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19  *****************************************************************************/
20 
26 #ifndef VLC_CPU_H
27 # define VLC_CPU_H 1
28 
29 VLC_API unsigned vlc_CPU(void);
30 
31 # if defined (__i386__) || defined (__x86_64__)
32 # define HAVE_FPU 1
33 # define VLC_CPU_MMX 0x00000008
34 # define VLC_CPU_3dNOW 0x00000010
35 # define VLC_CPU_MMXEXT 0x00000020
36 # define VLC_CPU_SSE 0x00000040
37 # define VLC_CPU_SSE2 0x00000080
38 # define VLC_CPU_SSE3 0x00000100
39 # define VLC_CPU_SSSE3 0x00000200
40 # define VLC_CPU_SSE4_1 0x00000400
41 # define VLC_CPU_SSE4_2 0x00000800
42 # define VLC_CPU_SSE4A 0x00001000
43 # define VLC_CPU_AVX 0x00002000
44 # define VLC_CPU_AVX2 0x00004000
45 # define VLC_CPU_XOP 0x00008000
46 # define VLC_CPU_FMA4 0x00010000
47 
48 # if defined (__MMX__)
49 # define vlc_CPU_MMX() (1)
50 # define VLC_MMX
51 # else
52 # define vlc_CPU_MMX() ((vlc_CPU() & VLC_CPU_MMX) != 0)
53 # if VLC_GCC_VERSION(4, 4) || defined(__clang__)
54 # define VLC_MMX __attribute__ ((__target__ ("mmx")))
55 # else
56 # define VLC_MMX VLC_MMX_is_not_implemented_on_this_compiler
57 # endif
58 # endif
59 
60 # if defined (__SSE__)
61 # define vlc_CPU_MMXEXT() (1)
62 # define vlc_CPU_SSE() (1)
63 # define VLC_SSE
64 # else
65 # define vlc_CPU_MMXEXT() ((vlc_CPU() & VLC_CPU_MMXEXT) != 0)
66 # define vlc_CPU_SSE() ((vlc_CPU() & VLC_CPU_SSE) != 0)
67 # if VLC_GCC_VERSION(4, 4) || defined(__clang__)
68 # define VLC_SSE __attribute__ ((__target__ ("sse")))
69 # else
70 # define VLC_SSE VLC_SSE_is_not_implemented_on_this_compiler
71 # endif
72 # endif
73 
74 # ifdef __SSE2__
75 # define vlc_CPU_SSE2() (1)
76 # else
77 # define vlc_CPU_SSE2() ((vlc_CPU() & VLC_CPU_SSE2) != 0)
78 # endif
79 
80 # ifdef __SSE3__
81 # define vlc_CPU_SSE3() (1)
82 # else
83 # define vlc_CPU_SSE3() ((vlc_CPU() & VLC_CPU_SSE3) != 0)
84 # endif
85 
86 # ifdef __SSSE3__
87 # define vlc_CPU_SSSE3() (1)
88 # else
89 # define vlc_CPU_SSSE3() ((vlc_CPU() & VLC_CPU_SSSE3) != 0)
90 # endif
91 
92 # ifdef __SSE4_1__
93 # define vlc_CPU_SSE4_1() (1)
94 # else
95 # define vlc_CPU_SSE4_1() ((vlc_CPU() & VLC_CPU_SSE4_1) != 0)
96 # endif
97 
98 # ifdef __SSE4_2__
99 # define vlc_CPU_SSE4_2() (1)
100 # else
101 # define vlc_CPU_SSE4_2() ((vlc_CPU() & VLC_CPU_SSE4_2) != 0)
102 # endif
103 
104 # ifdef __SSE4A__
105 # define vlc_CPU_SSE4A() (1)
106 # else
107 # define vlc_CPU_SSE4A() ((vlc_CPU() & VLC_CPU_SSE4A) != 0)
108 # endif
109 
110 # ifdef __AVX__
111 # define vlc_CPU_AVX() (1)
112 # else
113 # define vlc_CPU_AVX() ((vlc_CPU() & VLC_CPU_AVX) != 0)
114 # endif
115 
116 # ifdef __AVX2__
117 # define vlc_CPU_AVX2() (1)
118 # else
119 # define vlc_CPU_AVX2() ((vlc_CPU() & VLC_CPU_AVX2) != 0)
120 # endif
121 
122 # ifdef __3dNOW__
123 # define vlc_CPU_3dNOW() (1)
124 # else
125 # define vlc_CPU_3dNOW() ((vlc_CPU() & VLC_CPU_3dNOW) != 0)
126 # endif
127 
128 # ifdef __XOP__
129 # define vlc_CPU_XOP() (1)
130 # else
131 # define vlc_CPU_XOP() ((vlc_CPU() & VLC_CPU_XOP) != 0)
132 # endif
133 
134 # ifdef __FMA4__
135 # define vlc_CPU_FMA4() (1)
136 # else
137 # define vlc_CPU_FMA4() ((vlc_CPU() & VLC_CPU_FMA4) != 0)
138 # endif
139 
140 # elif defined (__ppc__) || defined (__ppc64__) || defined (__powerpc__)
141 # define HAVE_FPU 1
142 # define VLC_CPU_ALTIVEC 2
143 
144 # ifdef ALTIVEC
145 # define vlc_CPU_ALTIVEC() (1)
146 # else
147 # define vlc_CPU_ALTIVEC() ((vlc_CPU() & VLC_CPU_ALTIVEC) != 0)
148 # endif
149 
150 # elif defined (__arm__)
151 # if defined (__VFP_FP__) && !defined (__SOFTFP__)
152 # define HAVE_FPU 1
153 # else
154 # define HAVE_FPU 0
155 # endif
156 # define VLC_CPU_ARMv6 4
157 # define VLC_CPU_ARM_NEON 2
158 
159 # if defined (__ARM_ARCH_7A__)
160 # define VLC_CPU_ARM_ARCH 7
161 # elif defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6T2__)
162 # define VLC_CPU_ARM_ARCH 6
163 # else
164 # define VLC_CPU_ARM_ARCH 4
165 # endif
166 
167 # if (VLC_CPU_ARM_ARCH >= 6)
168 # define vlc_CPU_ARMv6() (1)
169 # else
170 # define vlc_CPU_ARMv6() ((vlc_CPU() & VLC_CPU_ARMv6) != 0)
171 # endif
172 
173 # ifdef __ARM_NEON__
174 # define vlc_CPU_ARM_NEON() (1)
175 # else
176 # define vlc_CPU_ARM_NEON() ((vlc_CPU() & VLC_CPU_ARM_NEON) != 0)
177 # endif
178 
179 # elif defined (__aarch64__)
180 # define HAVE_FPU 1
181 
182 # elif defined (__sparc__)
183 # define HAVE_FPU 1
184 
185 # elif defined (__mips_hard_float)
186 # define HAVE_FPU 1
187 
188 # else
189 
194 # define HAVE_FPU 0
195 
196 # endif
197 
198 #endif /* !VLC_CPU_H */