SkPreConfig.h revision 62e1a1a4ba9926c9b515eb603173ea4202ac28ae
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(__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#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// When targetting iOS and using gyp to generate the build files, it is not 122// possible to select files to build depending on the architecture (i.e. it 123// is not possible to use hand optimized assembly implementation). In that 124// configuration SK_BUILD_NO_OPTS is defined. Remove optimisation then. 125#ifdef SK_BUILD_NO_OPTS 126 #define SK_CPU_SSE_LEVEL 0 127#endif 128 129// Are we in GCC? 130#ifndef SK_CPU_SSE_LEVEL 131 // These checks must be done in descending order to ensure we set the highest 132 // available SSE level. 133 #if defined(__AVX2__) 134 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX2 135 #elif defined(__AVX__) 136 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX 137 #elif defined(__SSE4_2__) 138 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE42 139 #elif defined(__SSE4_1__) 140 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE41 141 #elif defined(__SSSE3__) 142 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSSE3 143 #elif defined(__SSE3__) 144 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE3 145 #elif defined(__SSE2__) 146 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 147 #endif 148#endif 149 150// Are we in VisualStudio? 151#ifndef SK_CPU_SSE_LEVEL 152 // These checks must be done in descending order to ensure we set the highest 153 // available SSE level. 64-bit intel guarantees at least SSE2 support. 154 #if defined(__AVX2__) 155 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX2 156 #elif defined(__AVX__) 157 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_AVX 158 #elif defined(_M_X64) || defined(_M_AMD64) 159 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 160 #elif defined(_M_IX86_FP) 161 #if _M_IX86_FP >= 2 162 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE2 163 #elif _M_IX86_FP == 1 164 #define SK_CPU_SSE_LEVEL SK_CPU_SSE_LEVEL_SSE1 165 #endif 166 #endif 167#endif 168 169////////////////////////////////////////////////////////////////////// 170// ARM defines 171 172#if defined(__arm__) && (!defined(__APPLE__) || !TARGET_IPHONE_SIMULATOR) 173 #define SK_CPU_ARM32 174 175 #if defined(__GNUC__) 176 #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \ 177 || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \ 178 || defined(__ARM_ARCH_7EM__) || defined(_ARM_ARCH_7) 179 #define SK_ARM_ARCH 7 180 #elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \ 181 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \ 182 || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \ 183 || defined(__ARM_ARCH_6M__) || defined(_ARM_ARCH_6) 184 #define SK_ARM_ARCH 6 185 #elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \ 186 || defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \ 187 || defined(__ARM_ARCH_5TEJ__) || defined(_ARM_ARCH_5) 188 #define SK_ARM_ARCH 5 189 #elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__) || defined(_ARM_ARCH_4) 190 #define SK_ARM_ARCH 4 191 #else 192 #define SK_ARM_ARCH 3 193 #endif 194 #endif 195#endif 196 197#if defined(__aarch64__) && !defined(SK_BUILD_NO_OPTS) 198 #define SK_CPU_ARM64 199#endif 200 201// All 64-bit ARM chips have NEON. Many 32-bit ARM chips do too. 202#if !defined(SK_ARM_HAS_NEON) && !defined(SK_BUILD_NO_OPTS) && (defined(__ARM_NEON__) || defined(__ARM_NEON)) 203 #define SK_ARM_HAS_NEON 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(SK_BUILD_FOR_WIN32) 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