SkPreConfig.h revision c60bfbb1b58ceea872f12bc8b62f2654bb47fbaa
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_WIN32) && !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_WIN32 29 #elif 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(__GLIBC__) || defined(__GNU__) || \ 34 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#if !defined(SK_DEBUG) && !defined(SK_RELEASE) 56 #ifdef NDEBUG 57 #define SK_RELEASE 58 #else 59 #define SK_DEBUG 60 #endif 61#endif 62 63#ifdef SK_BUILD_FOR_WIN32 64 #if !defined(SK_RESTRICT) 65 #define SK_RESTRICT __restrict 66 #endif 67 #if !defined(SK_WARN_UNUSED_RESULT) 68 #define SK_WARN_UNUSED_RESULT 69 #endif 70#endif 71 72////////////////////////////////////////////////////////////////////// 73 74#if !defined(SK_RESTRICT) 75 #define SK_RESTRICT __restrict__ 76#endif 77 78#if !defined(SK_WARN_UNUSED_RESULT) 79 #define SK_WARN_UNUSED_RESULT __attribute__((warn_unused_result)) 80#endif 81 82////////////////////////////////////////////////////////////////////// 83 84#if !defined(SK_CPU_BENDIAN) && !defined(SK_CPU_LENDIAN) 85 #if defined(__sparc) || defined(__sparc__) || \ 86 defined(_POWER) || defined(__powerpc__) || \ 87 defined(__ppc__) || defined(__hppa) || \ 88 defined(__PPC__) || defined(__PPC64__) || \ 89 defined(_MIPSEB) || defined(__ARMEB__) || \ 90 defined(__s390__) || \ 91 (defined(__sh__) && defined(__BIG_ENDIAN__)) || \ 92 (defined(__ia64) && defined(__BIG_ENDIAN__)) 93 #define SK_CPU_BENDIAN 94 #else 95 #define SK_CPU_LENDIAN 96 #endif 97#endif 98 99////////////////////////////////////////////////////////////////////// 100 101#if defined(__i386) || defined(_M_IX86) || defined(__x86_64__) || defined(_M_X64) 102 #define SK_CPU_X86 1 103#endif 104 105/** 106 * SK_CPU_SSE_LEVEL 107 * 108 * If defined, SK_CPU_SSE_LEVEL should be set to the highest supported level. 109 * On non-intel CPU this should be undefined. 110 */ 111 112#define SK_CPU_SSE_LEVEL_SSE1 10 113#define SK_CPU_SSE_LEVEL_SSE2 20 114#define SK_CPU_SSE_LEVEL_SSE3 30 115#define SK_CPU_SSE_LEVEL_SSSE3 31 116#define SK_CPU_SSE_LEVEL_SSE41 41 117#define SK_CPU_SSE_LEVEL_SSE42 42 118#define SK_CPU_SSE_LEVEL_AVX 51 119#define SK_CPU_SSE_LEVEL_AVX2 52 120 121#ifdef SK_BUILD_FOR_IOS 122 #define SK_CPU_SSE_LEVEL 0 // We're tired of fighting with opts/ and iOS simulator. 123#endif 124 125// Are we in GCC? 126#ifndef SK_CPU_SSE_LEVEL 127 // These checks must be done in descending order to ensure we set the highest 128 // available SSE level. 129 #if defined(__AVX2__) 130 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX2 131 #elif defined(__AVX__) 132 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX 133 #elif defined(__SSE4_2__) 134 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE42 135 #elif defined(__SSE4_1__) 136 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE41 137 #elif defined(__SSSE3__) 138 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSSE3 139 #elif defined(__SSE3__) 140 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE3 141 #elif defined(__SSE2__) 142 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 143 #endif 144#endif 145 146// Are we in VisualStudio? 147#ifndef SK_CPU_SSE_LEVEL 148 // These checks must be done in descending order to ensure we set the highest 149 // available SSE level. 64-bit intel guarantees at least SSE2 support. 150 #if defined(__AVX2__) 151 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX2 152 #elif defined(__AVX__) 153 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX 154 #elif defined(_M_X64) || defined(_M_AMD64) 155 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 156 #elif defined(_M_IX86_FP) 157 #if _M_IX86_FP >= 2 158 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 159 #elif _M_IX86_FP == 1 160 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE1 161 #endif 162 #endif 163#endif 164 165////////////////////////////////////////////////////////////////////// 166// ARM defines 167 168#if defined(__arm__) && (!defined(__APPLE__) || !TARGET_IPHONE_SIMULATOR) 169 #define SK_CPU_ARM32 170 171 #if defined(__GNUC__) 172 #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \ 173 || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \ 174 || defined(__ARM_ARCH_7EM__) || defined(_ARM_ARCH_7) 175 #define SK_ARM_ARCH 7 176 #elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \ 177 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \ 178 || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \ 179 || defined(__ARM_ARCH_6M__) || defined(_ARM_ARCH_6) 180 #define SK_ARM_ARCH 6 181 #elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \ 182 || defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \ 183 || defined(__ARM_ARCH_5TEJ__) || defined(_ARM_ARCH_5) 184 #define SK_ARM_ARCH 5 185 #elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__) || defined(_ARM_ARCH_4) 186 #define SK_ARM_ARCH 4 187 #else 188 #define SK_ARM_ARCH 3 189 #endif 190 #endif 191#endif 192 193// Disable ARM64 optimizations for iOS due to complications regarding gyp and iOS. 194#if defined(__aarch64__) && !defined(SK_BUILD_FOR_IOS) 195 #define SK_CPU_ARM64 196#endif 197 198// All 64-bit ARM chips have NEON. Many 32-bit ARM chips do too. 199// TODO: Why don't we want NEON on iOS? 200#if !defined(SK_ARM_HAS_NEON) && !defined(SK_BUILD_FOR_IOS) && (defined(__ARM_NEON__) || defined(__ARM_NEON)) 201 #define SK_ARM_HAS_NEON 202#endif 203 204////////////////////////////////////////////////////////////////////// 205 206#if !defined(SKIA_IMPLEMENTATION) 207 #define SKIA_IMPLEMENTATION 0 208#endif 209 210#if defined(SKIA_DLL) 211 #if defined(WIN32) 212 #if SKIA_IMPLEMENTATION 213 #define SK_API __declspec(dllexport) 214 #else 215 #define SK_API __declspec(dllimport) 216 #endif 217 #else 218 #define SK_API __attribute__((visibility("default"))) 219 #endif 220#else 221 #define SK_API 222#endif 223 224////////////////////////////////////////////////////////////////////// 225 226/** 227 * Use SK_PURE_FUNC as an attribute to indicate that a function's 228 * return value only depends on the value of its parameters. This 229 * can help the compiler optimize out successive calls. 230 * 231 * Usage: 232 * void function(int params) SK_PURE_FUNC; 233 */ 234#if defined(__GNUC__) 235# define SK_PURE_FUNC __attribute__((pure)) 236#else 237# define SK_PURE_FUNC /* nothing */ 238#endif 239 240////////////////////////////////////////////////////////////////////// 241 242/** 243 * SK_HAS_ATTRIBUTE(<name>) should return true iff the compiler 244 * supports __attribute__((<name>)). Mostly important because 245 * Clang doesn't support all of GCC attributes. 246 */ 247#if defined(__has_attribute) 248# define SK_HAS_ATTRIBUTE(x) __has_attribute(x) 249#elif defined(__GNUC__) 250# define SK_HAS_ATTRIBUTE(x) 1 251#else 252# define SK_HAS_ATTRIBUTE(x) 0 253#endif 254 255/** 256 * SK_ATTRIBUTE_OPTIMIZE_O1 can be used as a function attribute 257 * to specify individual optimization level of -O1, if the compiler 258 * supports it. 259 * 260 * NOTE: Clang/ARM (r161757) does not support the 'optimize' attribute. 261 */ 262#if SK_HAS_ATTRIBUTE(optimize) 263# define SK_ATTRIBUTE_OPTIMIZE_O1 __attribute__((optimize("O1"))) 264#else 265# define SK_ATTRIBUTE_OPTIMIZE_O1 /* nothing */ 266#endif 267 268#endif 269