SkPostConfig.h revision e63c46c356708a5f0efdc0aaeaa3b1ad150ded1f
1 2/* 3 * Copyright 2006 The Android Open Source Project 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10#ifndef SkPostConfig_DEFINED 11#define SkPostConfig_DEFINED 12 13#if defined(SK_BUILD_FOR_WIN32) || defined(SK_BUILD_FOR_WINCE) 14 #define SK_BUILD_FOR_WIN 15#endif 16 17#if defined(SK_DEBUG) && defined(SK_RELEASE) 18 #error "cannot define both SK_DEBUG and SK_RELEASE" 19#elif !defined(SK_DEBUG) && !defined(SK_RELEASE) 20 #error "must define either SK_DEBUG or SK_RELEASE" 21#endif 22 23#if defined SK_SUPPORT_UNITTEST && !defined(SK_DEBUG) 24 #error "can't have unittests without debug" 25#endif 26 27#if defined(SK_SCALAR_IS_FIXED) && defined(SK_SCALAR_IS_FLOAT) 28 #error "cannot define both SK_SCALAR_IS_FIXED and SK_SCALAR_IS_FLOAT" 29#elif !defined(SK_SCALAR_IS_FIXED) && !defined(SK_SCALAR_IS_FLOAT) 30 #define SK_SCALAR_IS_FLOAT 31#endif 32 33#if defined(SK_MSCALAR_IS_DOUBLE) && defined(SK_MSCALAR_IS_FLOAT) 34 #error "cannot define both SK_MSCALAR_IS_DOUBLE and SK_MSCALAR_IS_FLOAT" 35#elif !defined(SK_MSCALAR_IS_DOUBLE) && !defined(SK_MSCALAR_IS_FLOAT) 36 // default is double, as that is faster given our impl uses doubles 37 // for intermediate calculations. 38 #define SK_MSCALAR_IS_DOUBLE 39#endif 40 41#if defined(SK_CPU_LENDIAN) && defined(SK_CPU_BENDIAN) 42 #error "cannot define both SK_CPU_LENDIAN and SK_CPU_BENDIAN" 43#elif !defined(SK_CPU_LENDIAN) && !defined(SK_CPU_BENDIAN) 44 #error "must define either SK_CPU_LENDIAN or SK_CPU_BENDIAN" 45#endif 46 47// ensure the port has defined all of these, or none of them 48#ifdef SK_A32_SHIFT 49 #if !defined(SK_R32_SHIFT) || !defined(SK_G32_SHIFT) || !defined(SK_B32_SHIFT) 50 #error "all or none of the 32bit SHIFT amounts must be defined" 51 #endif 52#else 53 #if defined(SK_R32_SHIFT) || defined(SK_G32_SHIFT) || defined(SK_B32_SHIFT) 54 #error "all or none of the 32bit SHIFT amounts must be defined" 55 #endif 56#endif 57 58#if !defined(SK_HAS_COMPILER_FEATURE) 59 #if defined(__has_feature) 60 #define SK_HAS_COMPILER_FEATURE(x) __has_feature(x) 61 #else 62 #define SK_HAS_COMPILER_FEATURE(x) 0 63 #endif 64#endif 65 66#if !defined(SK_SUPPORT_GPU) 67 #define SK_SUPPORT_GPU 1 68#endif 69 70/** 71 * The clang static analyzer likes to know that when the program is not 72 * expected to continue (crash, assertion failure, etc). It will notice that 73 * some combination of parameters lead to a function call that does not return. 74 * It can then make appropriate assumptions about the parameters in code 75 * executed only if the non-returning function was *not* called. 76 */ 77#if !defined(SkNO_RETURN_HINT) 78 #if SK_HAS_COMPILER_FEATURE(attribute_analyzer_noreturn) 79 static inline void SkNO_RETURN_HINT() __attribute__((analyzer_noreturn)); 80 static inline void SkNO_RETURN_HINT() {} 81 #else 82 #define SkNO_RETURN_HINT() do {} while (false) 83 #endif 84#endif 85 86#if defined(SK_ZLIB_INCLUDE) && defined(SK_SYSTEM_ZLIB) 87 #error "cannot define both SK_ZLIB_INCLUDE and SK_SYSTEM_ZLIB" 88#elif defined(SK_ZLIB_INCLUDE) || defined(SK_SYSTEM_ZLIB) 89 #define SK_HAS_ZLIB 90#endif 91 92/////////////////////////////////////////////////////////////////////////////// 93 94#ifndef SkNEW 95 #define SkNEW(type_name) (new type_name) 96 #define SkNEW_ARGS(type_name, args) (new type_name args) 97 #define SkNEW_ARRAY(type_name, count) (new type_name[(count)]) 98 #define SkNEW_PLACEMENT(buf, type_name) (new (buf) type_name) 99 #define SkNEW_PLACEMENT_ARGS(buf, type_name, args) \ 100 (new (buf) type_name args) 101 #define SkDELETE(obj) (delete (obj)) 102 #define SkDELETE_ARRAY(array) (delete[] (array)) 103#endif 104 105#ifndef SK_CRASH 106#if 1 // set to 0 for infinite loop, which can help connecting gdb 107 #define SK_CRASH() do { SkNO_RETURN_HINT(); *(int *)(uintptr_t)0xbbadbeef = 0; } while (false) 108#else 109 #define SK_CRASH() do { SkNO_RETURN_HINT(); } while (true) 110#endif 111#endif 112 113/////////////////////////////////////////////////////////////////////////////// 114 115// SK_ENABLE_INST_COUNT defaults to 1 in DEBUG and 0 in RELEASE 116#ifndef SK_ENABLE_INST_COUNT 117 #ifdef SK_DEBUG 118 // FIXME: fails if multiple threads run at once (see skbug.com/1219 ) 119 #define SK_ENABLE_INST_COUNT 0 120 #else 121 #define SK_ENABLE_INST_COUNT 0 122 #endif 123#endif 124 125/////////////////////////////////////////////////////////////////////////////// 126 127#if defined(SK_SOFTWARE_FLOAT) && defined(SK_SCALAR_IS_FLOAT) 128 // if this is defined, we convert floats to 2scompliment ints for compares 129 #ifndef SK_SCALAR_SLOW_COMPARES 130 #define SK_SCALAR_SLOW_COMPARES 131 #endif 132 #ifndef SK_USE_FLOATBITS 133 #define SK_USE_FLOATBITS 134 #endif 135#endif 136 137#ifdef SK_BUILD_FOR_WIN 138 // we want lean_and_mean when we include windows.h 139 #ifndef WIN32_LEAN_AND_MEAN 140 #define WIN32_LEAN_AND_MEAN 141 #define WIN32_IS_MEAN_WAS_LOCALLY_DEFINED 142 #endif 143 144 #include <windows.h> 145 146 #ifdef WIN32_IS_MEAN_WAS_LOCALLY_DEFINED 147 #undef WIN32_LEAN_AND_MEAN 148 #endif 149 150 #ifndef SK_DEBUGBREAK 151 #define SK_DEBUGBREAK(cond) do { if (!(cond)) { SkNO_RETURN_HINT(); __debugbreak(); }} while (false) 152 #endif 153 154 #ifndef SK_A32_SHIFT 155 #define SK_A32_SHIFT 24 156 #define SK_R32_SHIFT 16 157 #define SK_G32_SHIFT 8 158 #define SK_B32_SHIFT 0 159 #endif 160 161#else 162 #ifdef SK_DEBUG 163 #include <stdio.h> 164 #ifndef SK_DEBUGBREAK 165 #define SK_DEBUGBREAK(cond) do { if (cond) break; \ 166 SkDebugf("%s:%d: failed assertion \"%s\"\n", \ 167 __FILE__, __LINE__, #cond); SK_CRASH(); } while (false) 168 #endif 169 #endif 170#endif 171 172/* 173 * We check to see if the SHIFT value has already been defined. 174 * if not, we define it ourself to some default values. We default to OpenGL 175 * order (in memory: r,g,b,a) 176 */ 177#ifndef SK_A32_SHIFT 178 #ifdef SK_CPU_BENDIAN 179 #define SK_R32_SHIFT 24 180 #define SK_G32_SHIFT 16 181 #define SK_B32_SHIFT 8 182 #define SK_A32_SHIFT 0 183 #else 184 #define SK_R32_SHIFT 0 185 #define SK_G32_SHIFT 8 186 #define SK_B32_SHIFT 16 187 #define SK_A32_SHIFT 24 188 #endif 189#endif 190 191/** 192 * SK_PMCOLOR_BYTE_ORDER can be used to query the byte order of SkPMColor at compile time. The 193 * relationship between the byte order and shift values depends on machine endianness. If the shift 194 * order is R=0, G=8, B=16, A=24 then ((char*)&pmcolor)[0] will produce the R channel on a little 195 * endian machine and the A channel on a big endian machine. Thus, given those shifts values, 196 * SK_PMCOLOR_BYTE_ORDER(R,G,B,A) will be true on a little endian machine and 197 * SK_PMCOLOR_BYTE_ORDER(A,B,G,R) will be true on a big endian machine. 198 */ 199#ifdef SK_CPU_BENDIAN 200 #define SK_PMCOLOR_BYTE_ORDER(C0, C1, C2, C3) \ 201 (SK_ ## C3 ## 32_SHIFT == 0 && \ 202 SK_ ## C2 ## 32_SHIFT == 8 && \ 203 SK_ ## C1 ## 32_SHIFT == 16 && \ 204 SK_ ## C0 ## 32_SHIFT == 24) 205#else 206 #define SK_PMCOLOR_BYTE_ORDER(C0, C1, C2, C3) \ 207 (SK_ ## C0 ## 32_SHIFT == 0 && \ 208 SK_ ## C1 ## 32_SHIFT == 8 && \ 209 SK_ ## C2 ## 32_SHIFT == 16 && \ 210 SK_ ## C3 ## 32_SHIFT == 24) 211#endif 212 213// stdlib macros 214 215#if 0 216#if !defined(strlen) && defined(SK_DEBUG) 217 extern size_t sk_strlen(const char*); 218 #define strlen(s) sk_strlen(s) 219#endif 220#ifndef sk_strcpy 221 #define sk_strcpy(dst, src) strcpy(dst, src) 222#endif 223#ifndef sk_strchr 224 #define sk_strchr(s, c) strchr(s, c) 225#endif 226#ifndef sk_strrchr 227 #define sk_strrchr(s, c) strrchr(s, c) 228#endif 229#ifndef sk_strcmp 230 #define sk_strcmp(s, t) strcmp(s, t) 231#endif 232#ifndef sk_strncmp 233 #define sk_strncmp(s, t, n) strncmp(s, t, n) 234#endif 235#ifndef sk_memcpy 236 #define sk_memcpy(dst, src, n) memcpy(dst, src, n) 237#endif 238#ifndef memmove 239 #define memmove(dst, src, n) memmove(dst, src, n) 240#endif 241#ifndef sk_memset 242 #define sk_memset(dst, val, n) memset(dst, val, n) 243#endif 244#ifndef sk_memcmp 245 #define sk_memcmp(s, t, n) memcmp(s, t, n) 246#endif 247 248#define sk_strequal(s, t) (!sk_strcmp(s, t)) 249#define sk_strnequal(s, t, n) (!sk_strncmp(s, t, n)) 250#endif 251 252////////////////////////////////////////////////////////////////////// 253 254#if defined(SK_BUILD_FOR_WIN32) || defined(SK_BUILD_FOR_MAC) 255 #ifndef SkLONGLONG 256 #ifdef SK_BUILD_FOR_WIN32 257 #define SkLONGLONG __int64 258 #else 259 #define SkLONGLONG long long 260 #endif 261 #endif 262#endif 263 264////////////////////////////////////////////////////////////////////////////////////////////// 265#ifndef SK_BUILD_FOR_WINCE 266#include <string.h> 267#include <stdlib.h> 268#else 269#define _CMNINTRIN_DECLARE_ONLY 270#include "cmnintrin.h" 271#endif 272 273#if defined SK_DEBUG && defined SK_BUILD_FOR_WIN32 274//#define _CRTDBG_MAP_ALLOC 275#ifdef free 276#undef free 277#endif 278#include <crtdbg.h> 279#undef free 280 281#ifdef SK_DEBUGx 282#if defined(SK_SIMULATE_FAILED_MALLOC) && defined(__cplusplus) 283 void * operator new( 284 size_t cb, 285 int nBlockUse, 286 const char * szFileName, 287 int nLine, 288 int foo 289 ); 290 void * operator new[]( 291 size_t cb, 292 int nBlockUse, 293 const char * szFileName, 294 int nLine, 295 int foo 296 ); 297 void operator delete( 298 void *pUserData, 299 int, const char*, int, int 300 ); 301 void operator delete( 302 void *pUserData 303 ); 304 void operator delete[]( void * p ); 305 #define DEBUG_CLIENTBLOCK new( _CLIENT_BLOCK, __FILE__, __LINE__, 0) 306#else 307 #define DEBUG_CLIENTBLOCK new( _CLIENT_BLOCK, __FILE__, __LINE__) 308#endif 309 #define new DEBUG_CLIENTBLOCK 310#else 311#define DEBUG_CLIENTBLOCK 312#endif // _DEBUG 313 314 315#endif 316 317#endif 318 319////////////////////////////////////////////////////////////////////// 320 321#ifndef SK_OVERRIDE 322 #if defined(_MSC_VER) 323 #define SK_OVERRIDE override 324 #elif defined(__clang__) 325 // Clang defaults to C++03 and warns about using override. Squelch that. Intentionally no 326 // push/pop here so all users of SK_OVERRIDE ignore the warning too. This is like passing 327 // -Wno-c++11-extensions, except that GCC won't die (because it won't see this pragma). 328 #pragma clang diagnostic ignored "-Wc++11-extensions" 329 330 #if __has_feature(cxx_override_control) 331 // Some documentation suggests we should be using __attribute__((override)), 332 // but it doesn't work. 333 #define SK_OVERRIDE override 334 #elif defined(__has_extension) 335 #if __has_extension(cxx_override_control) 336 #define SK_OVERRIDE override 337 #endif 338 #endif 339 #else 340 // Linux GCC ignores "__attribute__((override))" and rejects "override". 341 #define SK_OVERRIDE 342 #endif 343#endif 344 345////////////////////////////////////////////////////////////////////// 346 347#ifndef SK_PRINTF_LIKE 348#if defined(__clang__) || defined(__GNUC__) 349#define SK_PRINTF_LIKE(A, B) __attribute__((format(printf, (A), (B)))) 350#else 351#define SK_PRINTF_LIKE(A, B) 352#endif 353#endif 354 355////////////////////////////////////////////////////////////////////// 356 357#ifndef SK_SIZE_T_SPECIFIER 358#if defined(_MSC_VER) 359#define SK_SIZE_T_SPECIFIER "%Iu" 360#else 361#define SK_SIZE_T_SPECIFIER "%zu" 362#endif 363#endif 364 365////////////////////////////////////////////////////////////////////// 366 367#ifndef SK_ALLOW_STATIC_GLOBAL_INITIALIZERS 368#define SK_ALLOW_STATIC_GLOBAL_INITIALIZERS 1 369#endif 370