1 /* 2 * Copyright 2006 The Android Open Source Project 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 // IWYU pragma: private, include "SkTypes.h" 9 10 #ifndef SkPreConfig_DEFINED 11 #define SkPreConfig_DEFINED 12 13 // Allows embedders that want to disable macros that take arguments to just 14 // define that symbol to be one of these 15 #define SK_NOTHING_ARG1(arg1) 16 #define SK_NOTHING_ARG2(arg1, arg2) 17 #define SK_NOTHING_ARG3(arg1, arg2, arg3) 18 19 ////////////////////////////////////////////////////////////////////// 20 21 #if !defined(SK_BUILD_FOR_ANDROID) && !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_WIN) && !defined(SK_BUILD_FOR_UNIX) && !defined(SK_BUILD_FOR_MAC) 22 23 #ifdef __APPLE__ 24 #include "TargetConditionals.h" 25 #endif 26 27 #if defined(_WIN32) || defined(__SYMBIAN32__) 28 #define SK_BUILD_FOR_WIN 29 #elif defined(ANDROID) || defined(__ANDROID__) 30 #define SK_BUILD_FOR_ANDROID 31 #elif defined(linux) || defined(__linux) || defined(__FreeBSD__) || \ 32 defined(__OpenBSD__) || defined(__sun) || defined(__NetBSD__) || \ 33 defined(__DragonFly__) || defined(__Fuchsia__) || \ 34 defined(__GLIBC__) || defined(__GNU__) || defined(__unix__) 35 #define SK_BUILD_FOR_UNIX 36 #elif TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR 37 #define SK_BUILD_FOR_IOS 38 #else 39 #define SK_BUILD_FOR_MAC 40 #endif 41 42 #endif 43 44 /* Even if the user only defined the framework variant we still need to build 45 * the default (NDK-compliant) Android code. Therefore, when attempting to 46 * include/exclude something from the framework variant check first that we are 47 * building for Android then check the status of the framework define. 48 */ 49 #if defined(SK_BUILD_FOR_ANDROID_FRAMEWORK) && !defined(SK_BUILD_FOR_ANDROID) 50 #define SK_BUILD_FOR_ANDROID 51 #endif 52 53 ////////////////////////////////////////////////////////////////////// 54 55 #ifdef SK_BUILD_FOR_WIN 56 #if !defined(SK_RESTRICT) 57 #define SK_RESTRICT __restrict 58 #endif 59 #if !defined(SK_WARN_UNUSED_RESULT) 60 #define SK_WARN_UNUSED_RESULT 61 #endif 62 #endif 63 64 #if !defined(SK_RESTRICT) 65 #define SK_RESTRICT __restrict__ 66 #endif 67 68 #if !defined(SK_WARN_UNUSED_RESULT) 69 #define SK_WARN_UNUSED_RESULT __attribute__((warn_unused_result)) 70 #endif 71 72 ////////////////////////////////////////////////////////////////////// 73 74 #if !defined(SK_CPU_BENDIAN) && !defined(SK_CPU_LENDIAN) 75 #if defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) 76 #define SK_CPU_BENDIAN 77 #elif defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) 78 #define SK_CPU_LENDIAN 79 #elif defined(__sparc) || defined(__sparc__) || \ 80 defined(_POWER) || defined(__powerpc__) || \ 81 defined(__ppc__) || defined(__hppa) || \ 82 defined(__PPC__) || defined(__PPC64__) || \ 83 defined(_MIPSEB) || defined(__ARMEB__) || \ 84 defined(__s390__) || \ 85 (defined(__sh__) && defined(__BIG_ENDIAN__)) || \ 86 (defined(__ia64) && defined(__BIG_ENDIAN__)) 87 #define SK_CPU_BENDIAN 88 #else 89 #define SK_CPU_LENDIAN 90 #endif 91 #endif 92 93 ////////////////////////////////////////////////////////////////////// 94 95 #if defined(__i386) || defined(_M_IX86) || defined(__x86_64__) || defined(_M_X64) 96 #define SK_CPU_X86 1 97 #endif 98 99 /** 100 * SK_CPU_SSE_LEVEL 101 * 102 * If defined, SK_CPU_SSE_LEVEL should be set to the highest supported level. 103 * On non-intel CPU this should be undefined. 104 */ 105 106 #define SK_CPU_SSE_LEVEL_SSE1 10 107 #define SK_CPU_SSE_LEVEL_SSE2 20 108 #define SK_CPU_SSE_LEVEL_SSE3 30 109 #define SK_CPU_SSE_LEVEL_SSSE3 31 110 #define SK_CPU_SSE_LEVEL_SSE41 41 111 #define SK_CPU_SSE_LEVEL_SSE42 42 112 #define SK_CPU_SSE_LEVEL_AVX 51 113 #define SK_CPU_SSE_LEVEL_AVX2 52 114 115 // When targetting iOS and using gyp to generate the build files, it is not 116 // possible to select files to build depending on the architecture (i.e. it 117 // is not possible to use hand optimized assembly implementation). In that 118 // configuration SK_BUILD_NO_OPTS is defined. Remove optimisation then. 119 #ifdef SK_BUILD_NO_OPTS 120 #define SK_CPU_SSE_LEVEL 0 121 #endif 122 123 // Are we in GCC? 124 #ifndef SK_CPU_SSE_LEVEL 125 // These checks must be done in descending order to ensure we set the highest 126 // available SSE level. 127 #if defined(__AVX2__) 128 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX2 129 #elif defined(__AVX__) 130 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX 131 #elif defined(__SSE4_2__) 132 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE42 133 #elif defined(__SSE4_1__) 134 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE41 135 #elif defined(__SSSE3__) 136 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSSE3 137 #elif defined(__SSE3__) 138 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE3 139 #elif defined(__SSE2__) 140 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 141 #endif 142 #endif 143 144 // Are we in VisualStudio? 145 #ifndef SK_CPU_SSE_LEVEL 146 // These checks must be done in descending order to ensure we set the highest 147 // available SSE level. 64-bit intel guarantees at least SSE2 support. 148 #if defined(__AVX2__) 149 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX2 150 #elif defined(__AVX__) 151 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX 152 #elif defined(_M_X64) || defined(_M_AMD64) 153 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 154 #elif defined(_M_IX86_FP) 155 #if _M_IX86_FP >= 2 156 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 157 #elif _M_IX86_FP == 1 158 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE1 159 #endif 160 #endif 161 #endif 162 163 ////////////////////////////////////////////////////////////////////// 164 // ARM defines 165 166 #if defined(__arm__) && (!defined(__APPLE__) || !TARGET_IPHONE_SIMULATOR) 167 #define SK_CPU_ARM32 168 169 #if defined(__GNUC__) 170 #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \ 171 || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \ 172 || defined(__ARM_ARCH_7EM__) || defined(_ARM_ARCH_7) 173 #define SK_ARM_ARCH 7 174 #elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \ 175 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \ 176 || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \ 177 || defined(__ARM_ARCH_6M__) || defined(_ARM_ARCH_6) 178 #define SK_ARM_ARCH 6 179 #elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \ 180 || defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \ 181 || defined(__ARM_ARCH_5TEJ__) || defined(_ARM_ARCH_5) 182 #define SK_ARM_ARCH 5 183 #elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__) || defined(_ARM_ARCH_4) 184 #define SK_ARM_ARCH 4 185 #else 186 #define SK_ARM_ARCH 3 187 #endif 188 #endif 189 #endif 190 191 #if defined(__aarch64__) && !defined(SK_BUILD_NO_OPTS) 192 #define SK_CPU_ARM64 193 #endif 194 195 // All 64-bit ARM chips have NEON. Many 32-bit ARM chips do too. 196 #if !defined(SK_ARM_HAS_NEON) && !defined(SK_BUILD_NO_OPTS) && (defined(__ARM_NEON__) || defined(__ARM_NEON)) 197 #define SK_ARM_HAS_NEON 198 #endif 199 200 // Really this __APPLE__ check shouldn't be necessary, but it seems that Apple's Clang defines 201 // __ARM_FEATURE_CRC32 for -arch arm64, even though their chips don't support those instructions! 202 #if defined(__ARM_FEATURE_CRC32) && !defined(__APPLE__) 203 #define SK_ARM_HAS_CRC32 204 #endif 205 206 ////////////////////////////////////////////////////////////////////// 207 208 #if !defined(SKIA_IMPLEMENTATION) 209 #define SKIA_IMPLEMENTATION 0 210 #endif 211 212 #if !defined(SK_API) 213 #if defined(SKIA_DLL) 214 #if defined(_MSC_VER) 215 #if SKIA_IMPLEMENTATION 216 #define SK_API __declspec(dllexport) 217 #else 218 #define SK_API __declspec(dllimport) 219 #endif 220 #else 221 #define SK_API __attribute__((visibility("default"))) 222 #endif 223 #else 224 #define SK_API 225 #endif 226 #endif 227 228 ////////////////////////////////////////////////////////////////////// 229 230 /** 231 * Use SK_PURE_FUNC as an attribute to indicate that a function's 232 * return value only depends on the value of its parameters. This 233 * can help the compiler optimize out successive calls. 234 * 235 * Usage: 236 * void function(int params) SK_PURE_FUNC; 237 */ 238 #if defined(__GNUC__) 239 # define SK_PURE_FUNC __attribute__((pure)) 240 #else 241 # define SK_PURE_FUNC /* nothing */ 242 #endif 243 244 ////////////////////////////////////////////////////////////////////// 245 246 /** 247 * SK_HAS_ATTRIBUTE(<name>) should return true iff the compiler 248 * supports __attribute__((<name>)). Mostly important because 249 * Clang doesn't support all of GCC attributes. 250 */ 251 #if defined(__has_attribute) 252 # define SK_HAS_ATTRIBUTE(x) __has_attribute(x) 253 #elif defined(__GNUC__) 254 # define SK_HAS_ATTRIBUTE(x) 1 255 #else 256 # define SK_HAS_ATTRIBUTE(x) 0 257 #endif 258 259 /** 260 * SK_ATTRIBUTE_OPTIMIZE_O1 can be used as a function attribute 261 * to specify individual optimization level of -O1, if the compiler 262 * supports it. 263 * 264 * NOTE: Clang/ARM (r161757) does not support the 'optimize' attribute. 265 */ 266 #if SK_HAS_ATTRIBUTE(optimize) 267 # define SK_ATTRIBUTE_OPTIMIZE_O1 __attribute__((optimize("O1"))) 268 #else 269 # define SK_ATTRIBUTE_OPTIMIZE_O1 /* nothing */ 270 #endif 271 272 #endif 273