SkPostConfig.h revision 6fcbfcead5dc1b61fa5b4c139a1a3714e8c58091
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_ATTRIBUTE) 67 #if defined(__clang__) || defined(__GNUC__) 68 #define SK_ATTRIBUTE(attr) __attribute__((attr)) 69 #else 70 #define SK_ATTRIBUTE(attr) 71 #endif 72#endif 73 74#if !defined(SK_SUPPORT_GPU) 75 #define SK_SUPPORT_GPU 1 76#endif 77 78/** 79 * The clang static analyzer likes to know that when the program is not 80 * expected to continue (crash, assertion failure, etc). It will notice that 81 * some combination of parameters lead to a function call that does not return. 82 * It can then make appropriate assumptions about the parameters in code 83 * executed only if the non-returning function was *not* called. 84 */ 85#if !defined(SkNO_RETURN_HINT) 86 #if SK_HAS_COMPILER_FEATURE(attribute_analyzer_noreturn) 87 static inline void SkNO_RETURN_HINT() __attribute__((analyzer_noreturn)); 88 static inline void SkNO_RETURN_HINT() {} 89 #else 90 #define SkNO_RETURN_HINT() do {} while (false) 91 #endif 92#endif 93 94#if defined(SK_ZLIB_INCLUDE) && defined(SK_SYSTEM_ZLIB) 95 #error "cannot define both SK_ZLIB_INCLUDE and SK_SYSTEM_ZLIB" 96#elif defined(SK_ZLIB_INCLUDE) || defined(SK_SYSTEM_ZLIB) 97 #define SK_HAS_ZLIB 98#endif 99 100/////////////////////////////////////////////////////////////////////////////// 101 102#ifndef SkNEW 103 #define SkNEW(type_name) (new type_name) 104 #define SkNEW_ARGS(type_name, args) (new type_name args) 105 #define SkNEW_ARRAY(type_name, count) (new type_name[(count)]) 106 #define SkNEW_PLACEMENT(buf, type_name) (new (buf) type_name) 107 #define SkNEW_PLACEMENT_ARGS(buf, type_name, args) \ 108 (new (buf) type_name args) 109 #define SkDELETE(obj) (delete (obj)) 110 #define SkDELETE_ARRAY(array) (delete[] (array)) 111#endif 112 113#ifndef SK_CRASH 114#if 1 // set to 0 for infinite loop, which can help connecting gdb 115 #define SK_CRASH() do { SkNO_RETURN_HINT(); *(int *)(uintptr_t)0xbbadbeef = 0; } while (false) 116#else 117 #define SK_CRASH() do { SkNO_RETURN_HINT(); } while (true) 118#endif 119#endif 120 121/////////////////////////////////////////////////////////////////////////////// 122 123// SK_ENABLE_INST_COUNT defaults to 1 in DEBUG and 0 in RELEASE 124#ifndef SK_ENABLE_INST_COUNT 125 #ifdef SK_DEBUG 126 // FIXME: fails if multiple threads run at once (see skbug.com/1219 ) 127 #define SK_ENABLE_INST_COUNT 0 128 #else 129 #define SK_ENABLE_INST_COUNT 0 130 #endif 131#endif 132 133/////////////////////////////////////////////////////////////////////////////// 134 135#if defined(SK_SOFTWARE_FLOAT) && defined(SK_SCALAR_IS_FLOAT) 136 // if this is defined, we convert floats to 2scompliment ints for compares 137 #ifndef SK_SCALAR_SLOW_COMPARES 138 #define SK_SCALAR_SLOW_COMPARES 139 #endif 140 #ifndef SK_USE_FLOATBITS 141 #define SK_USE_FLOATBITS 142 #endif 143#endif 144 145#ifdef SK_BUILD_FOR_WIN 146 // we want lean_and_mean when we include windows.h 147 #ifndef WIN32_LEAN_AND_MEAN 148 #define WIN32_LEAN_AND_MEAN 149 #define WIN32_IS_MEAN_WAS_LOCALLY_DEFINED 150 #endif 151 #ifndef NOMINMAX 152 #define NOMINMAX 153 #define NOMINMAX_WAS_LOCALLY_DEFINED 154 #endif 155 156 #include <windows.h> 157 158 #ifdef WIN32_IS_MEAN_WAS_LOCALLY_DEFINED 159 #undef WIN32_IS_MEAN_WAS_LOCALLY_DEFINED 160 #undef WIN32_LEAN_AND_MEAN 161 #endif 162 163 #ifdef NOMINMAX_WAS_LOCALLY_DEFINED 164 #undef NOMINMAX_WAS_LOCALLY_DEFINED 165 #undef NOMINMAX 166 #endif 167 168 #ifndef SK_DEBUGBREAK 169 #define SK_DEBUGBREAK(cond) do { if (!(cond)) { SkNO_RETURN_HINT(); __debugbreak(); }} while (false) 170 #endif 171 172 #ifndef SK_A32_SHIFT 173 #define SK_A32_SHIFT 24 174 #define SK_R32_SHIFT 16 175 #define SK_G32_SHIFT 8 176 #define SK_B32_SHIFT 0 177 #endif 178 179#else 180 #ifdef SK_DEBUG 181 #include <stdio.h> 182 #ifndef SK_DEBUGBREAK 183 #define SK_DEBUGBREAK(cond) do { if (cond) break; \ 184 SkDebugf("%s:%d: failed assertion \"%s\"\n", \ 185 __FILE__, __LINE__, #cond); SK_CRASH(); } while (false) 186 #endif 187 #endif 188#endif 189 190/* 191 * We check to see if the SHIFT value has already been defined. 192 * if not, we define it ourself to some default values. We default to OpenGL 193 * order (in memory: r,g,b,a) 194 */ 195#ifndef SK_A32_SHIFT 196 #ifdef SK_CPU_BENDIAN 197 #define SK_R32_SHIFT 24 198 #define SK_G32_SHIFT 16 199 #define SK_B32_SHIFT 8 200 #define SK_A32_SHIFT 0 201 #else 202 #define SK_R32_SHIFT 0 203 #define SK_G32_SHIFT 8 204 #define SK_B32_SHIFT 16 205 #define SK_A32_SHIFT 24 206 #endif 207#endif 208 209/** 210 * SkColor has well defined shift values, but SkPMColor is configurable. This 211 * macro is a convenience that returns true if the shift values are equal while 212 * ignoring the machine's endianness. 213 */ 214#define SK_COLOR_MATCHES_PMCOLOR_BYTE_ORDER \ 215 (SK_A32_SHIFT == 24 && SK_R32_SHIFT == 16 && SK_G32_SHIFT == 8 && SK_B32_SHIFT == 0) 216 217/** 218 * SK_PMCOLOR_BYTE_ORDER can be used to query the byte order of SkPMColor at compile time. The 219 * relationship between the byte order and shift values depends on machine endianness. If the shift 220 * order is R=0, G=8, B=16, A=24 then ((char*)&pmcolor)[0] will produce the R channel on a little 221 * endian machine and the A channel on a big endian machine. Thus, given those shifts values, 222 * SK_PMCOLOR_BYTE_ORDER(R,G,B,A) will be true on a little endian machine and 223 * SK_PMCOLOR_BYTE_ORDER(A,B,G,R) will be true on a big endian machine. 224 */ 225#ifdef SK_CPU_BENDIAN 226 #define SK_PMCOLOR_BYTE_ORDER(C0, C1, C2, C3) \ 227 (SK_ ## C3 ## 32_SHIFT == 0 && \ 228 SK_ ## C2 ## 32_SHIFT == 8 && \ 229 SK_ ## C1 ## 32_SHIFT == 16 && \ 230 SK_ ## C0 ## 32_SHIFT == 24) 231#else 232 #define SK_PMCOLOR_BYTE_ORDER(C0, C1, C2, C3) \ 233 (SK_ ## C0 ## 32_SHIFT == 0 && \ 234 SK_ ## C1 ## 32_SHIFT == 8 && \ 235 SK_ ## C2 ## 32_SHIFT == 16 && \ 236 SK_ ## C3 ## 32_SHIFT == 24) 237#endif 238 239// stdlib macros 240 241#if 0 242#if !defined(strlen) && defined(SK_DEBUG) 243 extern size_t sk_strlen(const char*); 244 #define strlen(s) sk_strlen(s) 245#endif 246#ifndef sk_strcpy 247 #define sk_strcpy(dst, src) strcpy(dst, src) 248#endif 249#ifndef sk_strchr 250 #define sk_strchr(s, c) strchr(s, c) 251#endif 252#ifndef sk_strrchr 253 #define sk_strrchr(s, c) strrchr(s, c) 254#endif 255#ifndef sk_strcmp 256 #define sk_strcmp(s, t) strcmp(s, t) 257#endif 258#ifndef sk_strncmp 259 #define sk_strncmp(s, t, n) strncmp(s, t, n) 260#endif 261#ifndef sk_memcpy 262 #define sk_memcpy(dst, src, n) memcpy(dst, src, n) 263#endif 264#ifndef memmove 265 #define memmove(dst, src, n) memmove(dst, src, n) 266#endif 267#ifndef sk_memset 268 #define sk_memset(dst, val, n) memset(dst, val, n) 269#endif 270#ifndef sk_memcmp 271 #define sk_memcmp(s, t, n) memcmp(s, t, n) 272#endif 273 274#define sk_strequal(s, t) (!sk_strcmp(s, t)) 275#define sk_strnequal(s, t, n) (!sk_strncmp(s, t, n)) 276#endif 277 278////////////////////////////////////////////////////////////////////// 279 280#if defined(SK_BUILD_FOR_WIN32) || defined(SK_BUILD_FOR_MAC) 281 #ifndef SkLONGLONG 282 #ifdef SK_BUILD_FOR_WIN32 283 #define SkLONGLONG __int64 284 #else 285 #define SkLONGLONG long long 286 #endif 287 #endif 288#endif 289 290////////////////////////////////////////////////////////////////////////////////////////////// 291#ifndef SK_BUILD_FOR_WINCE 292#include <string.h> 293#include <stdlib.h> 294#else 295#define _CMNINTRIN_DECLARE_ONLY 296#include "cmnintrin.h" 297#endif 298 299#if defined SK_DEBUG && defined SK_BUILD_FOR_WIN32 300//#define _CRTDBG_MAP_ALLOC 301#ifdef free 302#undef free 303#endif 304#include <crtdbg.h> 305#undef free 306 307#ifdef SK_DEBUGx 308#if defined(SK_SIMULATE_FAILED_MALLOC) && defined(__cplusplus) 309 void * operator new( 310 size_t cb, 311 int nBlockUse, 312 const char * szFileName, 313 int nLine, 314 int foo 315 ); 316 void * operator new[]( 317 size_t cb, 318 int nBlockUse, 319 const char * szFileName, 320 int nLine, 321 int foo 322 ); 323 void operator delete( 324 void *pUserData, 325 int, const char*, int, int 326 ); 327 void operator delete( 328 void *pUserData 329 ); 330 void operator delete[]( void * p ); 331 #define DEBUG_CLIENTBLOCK new( _CLIENT_BLOCK, __FILE__, __LINE__, 0) 332#else 333 #define DEBUG_CLIENTBLOCK new( _CLIENT_BLOCK, __FILE__, __LINE__) 334#endif 335 #define new DEBUG_CLIENTBLOCK 336#else 337#define DEBUG_CLIENTBLOCK 338#endif // _DEBUG 339 340 341#endif 342 343#endif 344 345////////////////////////////////////////////////////////////////////// 346 347#ifndef SK_OVERRIDE 348 #if defined(_MSC_VER) 349 #define SK_OVERRIDE override 350 #elif defined(__clang__) 351 // Clang defaults to C++03 and warns about using override. Squelch that. Intentionally no 352 // push/pop here so all users of SK_OVERRIDE ignore the warning too. This is like passing 353 // -Wno-c++11-extensions, except that GCC won't die (because it won't see this pragma). 354 #pragma clang diagnostic ignored "-Wc++11-extensions" 355 356 #if __has_feature(cxx_override_control) 357 // Some documentation suggests we should be using __attribute__((override)), 358 // but it doesn't work. 359 #define SK_OVERRIDE override 360 #elif defined(__has_extension) 361 #if __has_extension(cxx_override_control) 362 #define SK_OVERRIDE override 363 #endif 364 #endif 365 #endif 366 #ifndef SK_OVERRIDE 367 #define SK_OVERRIDE 368 #endif 369#endif 370 371////////////////////////////////////////////////////////////////////// 372 373#if !defined(SK_UNUSED) 374 #define SK_UNUSED SK_ATTRIBUTE(unused) 375#endif 376 377////////////////////////////////////////////////////////////////////// 378 379#ifndef SK_PRINTF_LIKE 380#if defined(__clang__) || defined(__GNUC__) 381#define SK_PRINTF_LIKE(A, B) __attribute__((format(printf, (A), (B)))) 382#else 383#define SK_PRINTF_LIKE(A, B) 384#endif 385#endif 386 387////////////////////////////////////////////////////////////////////// 388 389#ifndef SK_SIZE_T_SPECIFIER 390#if defined(_MSC_VER) 391#define SK_SIZE_T_SPECIFIER "%Iu" 392#else 393#define SK_SIZE_T_SPECIFIER "%zu" 394#endif 395#endif 396 397////////////////////////////////////////////////////////////////////// 398 399#ifndef SK_ALLOW_STATIC_GLOBAL_INITIALIZERS 400#define SK_ALLOW_STATIC_GLOBAL_INITIALIZERS 1 401#endif 402