1 /* 2 * Copyright 2022 Google LLC 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SkFeatures_DEFINED 9 #define SkFeatures_DEFINED 10 11 #if !defined(SK_BUILD_FOR_ANDROID) && !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_WIN) && \ 12 !defined(SK_BUILD_FOR_UNIX) && !defined(SK_BUILD_FOR_MAC) 13 14 #ifdef __APPLE__ 15 #include <TargetConditionals.h> 16 #endif 17 18 #if defined(_WIN32) || defined(__SYMBIAN32__) 19 #define SK_BUILD_FOR_WIN 20 #elif defined(ANDROID) || defined(__ANDROID__) 21 #define SK_BUILD_FOR_ANDROID 22 #elif defined(linux) || defined(__linux) || defined(__FreeBSD__) || \ 23 defined(__OpenBSD__) || defined(__sun) || defined(__NetBSD__) || \ 24 defined(__DragonFly__) || defined(__Fuchsia__) || \ 25 defined(__GLIBC__) || defined(__GNU__) || defined(__unix__) 26 #define SK_BUILD_FOR_UNIX 27 #elif TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR 28 #define SK_BUILD_FOR_IOS 29 #else 30 #define SK_BUILD_FOR_MAC 31 #endif 32 #endif // end SK_BUILD_FOR_* 33 34 35 #if defined(SK_BUILD_FOR_WIN) && !defined(__clang__) 36 #if !defined(SK_RESTRICT) 37 #define SK_RESTRICT __restrict 38 #endif 39 #if !defined(SK_WARN_UNUSED_RESULT) 40 #define SK_WARN_UNUSED_RESULT 41 #endif 42 #endif 43 44 #if !defined(SK_RESTRICT) 45 #define SK_RESTRICT __restrict__ 46 #endif 47 48 #if !defined(SK_CPU_BENDIAN) && !defined(SK_CPU_LENDIAN) 49 #if defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) 50 #define SK_CPU_BENDIAN 51 #elif defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) 52 #define SK_CPU_LENDIAN 53 #elif defined(__sparc) || defined(__sparc__) || \ 54 defined(_POWER) || defined(__powerpc__) || \ 55 defined(__ppc__) || defined(__hppa) || \ 56 defined(__PPC__) || defined(__PPC64__) || \ 57 defined(_MIPSEB) || defined(__ARMEB__) || \ 58 defined(__s390__) || \ 59 (defined(__sh__) && defined(__BIG_ENDIAN__)) || \ 60 (defined(__ia64) && defined(__BIG_ENDIAN__)) 61 #define SK_CPU_BENDIAN 62 #else 63 #define SK_CPU_LENDIAN 64 #endif 65 #endif 66 67 #if defined(__i386) || defined(_M_IX86) || defined(__x86_64__) || defined(_M_X64) 68 #define SK_CPU_X86 1 69 #endif 70 71 /** 72 * SK_CPU_SSE_LEVEL 73 * 74 * If defined, SK_CPU_SSE_LEVEL should be set to the highest supported level. 75 * On non-intel CPU this should be undefined. 76 */ 77 #define SK_CPU_SSE_LEVEL_SSE1 10 78 #define SK_CPU_SSE_LEVEL_SSE2 20 79 #define SK_CPU_SSE_LEVEL_SSE3 30 80 #define SK_CPU_SSE_LEVEL_SSSE3 31 81 #define SK_CPU_SSE_LEVEL_SSE41 41 82 #define SK_CPU_SSE_LEVEL_SSE42 42 83 #define SK_CPU_SSE_LEVEL_AVX 51 84 #define SK_CPU_SSE_LEVEL_AVX2 52 85 #define SK_CPU_SSE_LEVEL_SKX 60 86 87 // TODO(brianosman,kjlubick) clean up these checks 88 89 // Are we in GCC/Clang? 90 #ifndef SK_CPU_SSE_LEVEL 91 // These checks must be done in descending order to ensure we set the highest 92 // available SSE level. 93 #if defined(__AVX512F__) && defined(__AVX512DQ__) && defined(__AVX512CD__) && \ 94 defined(__AVX512BW__) && defined(__AVX512VL__) 95 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SKX 96 #elif defined(__AVX2__) 97 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX2 98 #elif defined(__AVX__) 99 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX 100 #elif defined(__SSE4_2__) 101 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE42 102 #elif defined(__SSE4_1__) 103 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE41 104 #elif defined(__SSSE3__) 105 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSSE3 106 #elif defined(__SSE3__) 107 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE3 108 #elif defined(__SSE2__) 109 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 110 #endif 111 #endif 112 113 // Are we in VisualStudio? 114 #ifndef SK_CPU_SSE_LEVEL 115 // These checks must be done in descending order to ensure we set the highest 116 // available SSE level. 64-bit intel guarantees at least SSE2 support. 117 #if defined(__AVX512F__) && defined(__AVX512DQ__) && defined(__AVX512CD__) && \ 118 defined(__AVX512BW__) && defined(__AVX512VL__) 119 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SKX 120 #elif defined(__AVX2__) 121 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX2 122 #elif defined(__AVX__) 123 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX 124 #elif defined(_M_X64) || defined(_M_AMD64) 125 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 126 #elif defined(_M_IX86_FP) 127 #if _M_IX86_FP >= 2 128 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 129 #elif _M_IX86_FP == 1 130 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE1 131 #endif 132 #endif 133 #endif 134 135 // ARM defines 136 #if defined(__arm__) && (!defined(__APPLE__) || !TARGET_IPHONE_SIMULATOR) 137 #define SK_CPU_ARM32 138 #elif defined(__aarch64__) 139 #define SK_CPU_ARM64 140 #endif 141 142 // All 64-bit ARM chips have NEON. Many 32-bit ARM chips do too. 143 #if !defined(SK_ARM_HAS_NEON) && defined(__ARM_NEON) 144 #define SK_ARM_HAS_NEON 145 #endif 146 147 #if defined(__ARM_FEATURE_CRC32) 148 #define SK_ARM_HAS_CRC32 149 #endif 150 151 #endif // SkFeatures_DEFINED 152