5 #ifndef SPA_UTILS_DEFS_H 6 #define SPA_UTILS_DEFS_H 10 # if __cplusplus >= 201103L 11 # define SPA_STATIC_ASSERT_IMPL(expr, msg, ...) static_assert(expr, msg) 15 # if __STDC_VERSION__ >= 201112L 16 # define SPA_STATIC_ASSERT_IMPL(expr, msg, ...) _Static_assert(expr, msg) 19 #ifndef SPA_STATIC_ASSERT_IMPL 20 #define SPA_STATIC_ASSERT_IMPL(expr, ...) \ 21 ((void)sizeof(struct { int spa_static_assertion_failed : 2 * !!(expr) - 1; })) 24 #define SPA_STATIC_ASSERT(expr, ...) SPA_STATIC_ASSERT_IMPL(expr, ## __VA_ARGS__, "`" #expr "` evaluated to false") 58 #if defined(__clang__) && defined(__cplusplus) && __cplusplus >= 201103L 60 # define SPA_FALLTHROUGH [[clang::fallthrough]]; 61 #elif __GNUC__ >= 7 || __clang_major__ >= 10 62 # define SPA_FALLTHROUGH __attribute__ ((fallthrough)); 64 # define SPA_FALLTHROUGH 67 #define SPA_FLAG_MASK(field,mask,flag) (((field) & (mask)) == (flag)) 68 #define SPA_FLAG_IS_SET(field,flag) SPA_FLAG_MASK(field, flag, flag) 70 #define SPA_FLAG_SET(field,flag) ((field) |= (flag)) 71 #define SPA_FLAG_CLEAR(field, flag) \ 73 SPA_STATIC_ASSERT(__builtin_constant_p(flag) ? \ 74 (__typeof__(flag))(__typeof__(field))(__typeof__(flag))(flag) == (flag) : \ 75 sizeof(field) >= sizeof(flag), \ 76 "truncation problem when masking " #field \ 78 ((field) &= ~(__typeof__(field))(flag)); \ 80 #define SPA_FLAG_UPDATE(field,flag,val) ((val) ? SPA_FLAG_SET((field),(flag)) : SPA_FLAG_CLEAR((field),(flag))) 87 #define SPA_DIRECTION_REVERSE(d) ((d) ^ 1) 89 #define SPA_RECTANGLE(width,height) ((struct spa_rectangle){ (width), (height) }) 95 #define SPA_POINT(x,y) ((struct spa_point){ (x), (y) }) 101 #define SPA_REGION(x,y,width,height) ((struct spa_region){ SPA_POINT(x,y), SPA_RECTANGLE(width,height) }) 107 #define SPA_FRACTION(num,denom) ((struct spa_fraction){ (num), (denom) }) 113 #define SPA_N_ELEMENTS(arr) (sizeof(arr) / sizeof((arr)[0])) 124 #define SPA_FOR_EACH_ELEMENT(arr, ptr) \ 125 for ((ptr) = arr; (void*)(ptr) < SPA_PTROFF(arr, sizeof(arr), void); (ptr)++) 127 #define SPA_FOR_EACH_ELEMENT_VAR(arr, var) \ 128 for (__typeof__((arr)[0])* var = arr; (void*)(var) < SPA_PTROFF(arr, sizeof(arr), void); (var)++) 132 __typeof__(a) _a = (a); \ 133 SPA_LIKELY(_a >= 0) ? _a : -_a; \ 135 #define SPA_MIN(a,b) \ 137 __typeof__(a) _min_a = (a); \ 138 __typeof__(b) _min_b = (b); \ 139 SPA_LIKELY(_min_a <= _min_b) ? _min_a : _min_b; \ 141 #define SPA_MAX(a,b) \ 143 __typeof__(a) _max_a = (a); \ 144 __typeof__(b) _max_b = (b); \ 145 SPA_LIKELY(_max_a >= _max_b) ? _max_a : _max_b; \ 147 #define SPA_CLAMP(v,low,high) \ 149 __typeof__(v) _v = (v); \ 150 __typeof__(low) _low = (low); \ 151 __typeof__(high) _high = (high); \ 152 SPA_MIN(SPA_MAX(_v, _low), _high); \ 155 #define SPA_CLAMPF(v,low,high) \ 157 fminf(fmaxf(v, low), high); \ 161 #define SPA_SWAP(a,b) \ 163 __typeof__(a) _t = (a); \ 167 #define SPA_TYPECHECK(type,x) \ 170 (void)(&_dummy == &_dummy2); \ 177 #define SPA_PTROFF(ptr_,offset_,type_) ((type_*)((uintptr_t)(ptr_) + (ptrdiff_t)(offset_))) 178 #define SPA_PTROFF_ALIGN(ptr_,offset_,alignment_,type_) \ 179 SPA_PTR_ALIGN(SPA_PTROFF(ptr_,offset_,type_),alignment_,type_) 185 #define SPA_MEMBER(b,o,t) SPA_PTROFF(b,o,t) 186 #define SPA_MEMBER_ALIGN(b,o,a,t) SPA_PTROFF_ALIGN(b,o,a,t) 188 #define SPA_CONTAINER_OF(p,t,m) ((t*)((uintptr_t)(p) - offsetof(t,m))) 190 #define SPA_PTRDIFF(p1,p2) ((intptr_t)(p1) - (intptr_t)(p2)) 192 #define SPA_PTR_TO_INT(p) ((int) ((intptr_t) (p))) 193 #define SPA_INT_TO_PTR(u) ((void*) ((intptr_t) (u))) 195 #define SPA_PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p))) 196 #define SPA_UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u))) 198 #define SPA_TIME_INVALID ((int64_t)INT64_MIN) 199 #define SPA_IDX_INVALID ((unsigned int)-1) 200 #define SPA_ID_INVALID ((uint32_t)0xffffffff) 202 #define SPA_NSEC_PER_SEC (1000000000LL) 203 #define SPA_NSEC_PER_MSEC (1000000ll) 204 #define SPA_NSEC_PER_USEC (1000ll) 205 #define SPA_USEC_PER_SEC (1000000ll) 206 #define SPA_USEC_PER_MSEC (1000ll) 207 #define SPA_MSEC_PER_SEC (1000ll) 209 #define SPA_TIMESPEC_TO_NSEC(ts) ((ts)->tv_sec * SPA_NSEC_PER_SEC + (ts)->tv_nsec) 210 #define SPA_TIMESPEC_TO_USEC(ts) ((ts)->tv_sec * SPA_USEC_PER_SEC + (ts)->tv_nsec / SPA_NSEC_PER_USEC) 211 #define SPA_TIMEVAL_TO_NSEC(tv) ((tv)->tv_sec * SPA_NSEC_PER_SEC + (tv)->tv_usec * SPA_NSEC_PER_USEC) 212 #define SPA_TIMEVAL_TO_USEC(tv) ((tv)->tv_sec * SPA_USEC_PER_SEC + (tv)->tv_usec) 215 #define SPA_PRINTF_FUNC(fmt, arg1) __attribute__((format(printf, fmt, arg1))) 216 #define SPA_FORMAT_ARG_FUNC(arg1) __attribute__((format_arg(arg1))) 217 #define SPA_ALIGNED(align) __attribute__((aligned(align))) 218 #define SPA_DEPRECATED __attribute__ ((deprecated)) 219 #define SPA_EXPORT __attribute__((visibility("default"))) 220 #define SPA_SENTINEL __attribute__((__sentinel__)) 221 #define SPA_UNUSED __attribute__ ((unused)) 222 #define SPA_NORETURN __attribute__ ((noreturn)) 223 #define SPA_WARN_UNUSED_RESULT __attribute__ ((warn_unused_result)) 225 #define SPA_PRINTF_FUNC(fmt, arg1) 226 #define SPA_FORMAT_ARG_FUNC(arg1) 227 #define SPA_ALIGNED(align) 228 #define SPA_DEPRECATED 233 #define SPA_WARN_UNUSED_RESULT 236 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L 237 #define SPA_RESTRICT restrict 238 #elif defined(__GNUC__) && __GNUC__ >= 4 239 #define SPA_RESTRICT __restrict__ 244 #define SPA_ROUND_DOWN(num,value) \ 246 __typeof__(num) _num = (num); \ 247 ((_num) - ((_num) % (value))); \ 249 #define SPA_ROUND_UP(num,value) \ 251 __typeof__(value) _v = (value); \ 252 ((((num) + (_v) - 1) / (_v)) * (_v)); \ 255 #define SPA_ROUND_MASK(num,mask) ((__typeof__(num))((mask)-1)) 257 #define SPA_ROUND_DOWN_N(num,align) ((num) & ~SPA_ROUND_MASK(num, align)) 258 #define SPA_ROUND_UP_N(num,align) ((((num)-1) | SPA_ROUND_MASK(num, align))+1) 260 #define SPA_SCALE32_UP(val,num,denom) \ 262 uint64_t _val = (val); \ 263 uint64_t _denom = (denom); \ 264 (uint32_t)(((_val) * (num) + (_denom)-1) / (_denom)); \ 268 #define SPA_PTR_ALIGNMENT(p,align) ((intptr_t)(p) & ((align)-1)) 269 #define SPA_IS_ALIGNED(p,align) (SPA_PTR_ALIGNMENT(p,align) == 0) 270 #define SPA_PTR_ALIGN(p,align,type) ((type*)SPA_ROUND_UP_N((intptr_t)(p), (intptr_t)(align))) 274 #define SPA_LIKELY(x) (__builtin_expect(!!(x),1)) 275 #define SPA_UNLIKELY(x) (__builtin_expect(!!(x),0)) 277 #define SPA_LIKELY(x) (x) 278 #define SPA_UNLIKELY(x) (x) 282 #define SPA_STRINGIFY_1(...) #__VA_ARGS__ 283 #define SPA_STRINGIFY(...) SPA_STRINGIFY_1(__VA_ARGS__) 285 #define spa_return_if_fail(expr) \ 287 if (SPA_UNLIKELY(!(expr))) { \ 288 fprintf(stderr, "'%s' failed at %s:%u %s()\n", \ 289 #expr , __FILE__, __LINE__, __func__); \ 294 #define spa_return_val_if_fail(expr, val) \ 296 if (SPA_UNLIKELY(!(expr))) { \ 297 fprintf(stderr, "'%s' failed at %s:%u %s()\n", \ 298 #expr , __FILE__, __LINE__, __func__); \ 306 #define spa_assert_se(expr) \ 308 if (SPA_UNLIKELY(!(expr))) { \ 309 fprintf(stderr, "'%s' failed at %s:%u %s()\n", \ 310 #expr , __FILE__, __LINE__, __func__); \ 315 #define spa_assert_se(expr) \ 317 int _unique_var = (expr); \ 324 #define spa_nop() do {} while (false) 327 #define spa_assert(expr) spa_nop() 328 #elif defined (FASTPATH) 329 #define spa_assert(expr) spa_assert_se(expr) 331 #define spa_assert(expr) spa_assert_se(expr) 335 #define spa_assert_not_reached() abort() 337 #define spa_assert_not_reached() \ 339 fprintf(stderr, "Code should not be reached at %s:%u %s()\n", \ 340 __FILE__, __LINE__, __func__); \ 345 #define spa_memzero(x,l) (memset((x), 0, (l))) 346 #define spa_zero(x) (spa_memzero(&(x), sizeof(x))) 348 #ifdef SPA_DEBUG_MEMCPY 349 #define spa_memcpy(d,s,n) \ 351 fprintf(stderr, "%s:%u %s() memcpy(%p, %p, %zd)\n", \ 352 __FILE__, __LINE__, __func__, (d), (s), (size_t)(n)); \ 355 #define spa_memmove(d,s,n) \ 357 fprintf(stderr, "%s:%u %s() memmove(%p, %p, %zd)\n", \ 358 __FILE__, __LINE__, __func__, (d), (s), (size_t)(n)); \ 362 #define spa_memcpy(d,s,n) memcpy(d,s,n) 363 #define spa_memmove(d,s,n) memmove(d,s,n) 366 #define spa_aprintf(_fmt, ...) \ 369 if (asprintf(&(_strp), (_fmt), ## __VA_ARGS__ ) == -1) \ int32_t x
Definition: defs.h:110
uint32_t num
Definition: defs.h:124
uint32_t denom
Definition: defs.h:125
uint32_t height
Definition: defs.h:104
struct spa_rectangle size
Definition: defs.h:118
uint32_t width
Definition: defs.h:103
spa_direction
Definition: defs.h:92
int32_t y
Definition: defs.h:111
struct spa_point position
Definition: defs.h:117