25 #ifndef SPA_UTILS_DEFS_H
26 #define SPA_UTILS_DEFS_H
63 #if defined(__clang__) && defined(__cplusplus) && __cplusplus >= 201103L
65 # define SPA_FALLTHROUGH [[clang::fallthrough]];
66 #elif __GNUC__ >= 7 || __clang_major__ >= 10
67 # define SPA_FALLTHROUGH __attribute__ ((fallthrough));
69 # define SPA_FALLTHROUGH
72 #define SPA_FLAG_MASK(field,mask,flag) (((field) & (mask)) == (flag))
73 #define SPA_FLAG_IS_SET(field,flag) SPA_FLAG_MASK(field,flag,flag)
74 #define SPA_FLAG_SET(field,flag) ((field) |= (flag))
75 #define SPA_FLAG_CLEAR(field,flag) ((field) &= ~(flag))
76 #define SPA_FLAG_UPDATE(field,flag,val) ((val) ? SPA_FLAG_SET(field,flag) : SPA_FLAG_CLEAR(field,flag))
83 #define SPA_DIRECTION_REVERSE(d) ((d) ^ 1)
85 #define SPA_RECTANGLE(width,height) (struct spa_rectangle){ width, height }
91 #define SPA_POINT(x,y) (struct spa_point){ x, y }
97 #define SPA_REGION(x,y,width,height) (struct spa_region){ SPA_POINT(x,y), SPA_RECTANGLE(width,height) }
103 #define SPA_FRACTION(num,denom) (struct spa_fraction){ num, denom }
109 #define SPA_N_ELEMENTS(arr) (sizeof(arr) / sizeof((arr)[0]))
120 #define SPA_FOR_EACH_ELEMENT(arr, ptr) \
121 for (ptr = arr; (void*)ptr < SPA_PTROFF(arr, sizeof(arr), void); ptr++)
125 __typeof__(a) _a = (a); \
126 SPA_LIKELY(_a >= 0) ? _a : -_a; \
128 #define SPA_MIN(a,b) \
130 __typeof__(a) _min_a = (a); \
131 __typeof__(b) _min_b = (b); \
132 SPA_LIKELY(_min_a < _min_b) ? _min_a : _min_b; \
134 #define SPA_MAX(a,b) \
136 __typeof__(a) _max_a = (a); \
137 __typeof__(b) _max_b = (b); \
138 SPA_LIKELY(_max_a > _max_b) ? _max_a : _max_b; \
140 #define SPA_CLAMP(v,low,high) \
142 __typeof__(v) _v = (v); \
143 __typeof__(low) _low = (low); \
144 __typeof__(high) _high = (high); \
145 SPA_MIN(SPA_MAX(_v, _low), _high); \
148 #define SPA_SWAP(a,b) \
150 __typeof__(a) _t = (a); \
154 #define SPA_TYPECHECK(type,x) \
157 (void)(&_dummy == &_dummy2); \
164 #define SPA_PTROFF(ptr_,offset_,type_) ((type_*)((uint8_t*)(ptr_) + (int)(offset_)))
165 #define SPA_PTROFF_ALIGN(ptr_,offset_,alignment_,type_) \
166 SPA_PTR_ALIGN(SPA_PTROFF(ptr_,offset_,type_),alignment_,type_)
172 #define SPA_MEMBER(b,o,t) SPA_PTROFF(b,o,t)
173 #define SPA_MEMBER_ALIGN(b,o,a,t) SPA_PTROFF_ALIGN(b,o,a,t)
175 #define SPA_CONTAINER_OF(p,t,m) (t*)((uint8_t*)p - offsetof (t,m))
177 #define SPA_PTRDIFF(p1,p2) ((uint8_t*)(p1) - (uint8_t*)(p2))
179 #define SPA_PTR_TO_INT(p) ((int) ((intptr_t) (p)))
180 #define SPA_INT_TO_PTR(u) ((void*) ((intptr_t) (u)))
182 #define SPA_PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p)))
183 #define SPA_UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u)))
185 #define SPA_TIME_INVALID ((int64_t)INT64_MIN)
186 #define SPA_IDX_INVALID ((unsigned int)-1)
187 #define SPA_ID_INVALID ((uint32_t)0xffffffff)
189 #define SPA_NSEC_PER_SEC (1000000000ll)
190 #define SPA_NSEC_PER_MSEC (1000000ll)
191 #define SPA_NSEC_PER_USEC (1000ll)
192 #define SPA_USEC_PER_SEC (1000000ll)
193 #define SPA_USEC_PER_MSEC (1000ll)
194 #define SPA_MSEC_PER_SEC (1000ll)
196 #define SPA_TIMESPEC_TO_NSEC(ts) ((ts)->tv_sec * SPA_NSEC_PER_SEC + (ts)->tv_nsec)
197 #define SPA_TIMESPEC_TO_USEC(ts) ((ts)->tv_sec * SPA_USEC_PER_SEC + (ts)->tv_nsec / SPA_NSEC_PER_USEC)
198 #define SPA_TIMEVAL_TO_NSEC(tv) ((tv)->tv_sec * SPA_NSEC_PER_SEC + (tv)->tv_usec * SPA_NSEC_PER_USEC)
199 #define SPA_TIMEVAL_TO_USEC(tv) ((tv)->tv_sec * SPA_USEC_PER_SEC + (tv)->tv_usec)
202 #define SPA_PRINTF_FUNC(fmt, arg1) __attribute__((format(printf, fmt, arg1)))
203 #define SPA_FORMAT_ARG_FUNC(arg1) __attribute__((format_arg(arg1)))
204 #define SPA_ALIGNED(align) __attribute__((aligned(align)))
205 #define SPA_DEPRECATED __attribute__ ((deprecated))
206 #define SPA_EXPORT __attribute__((visibility("default")))
207 #define SPA_SENTINEL __attribute__((__sentinel__))
208 #define SPA_UNUSED __attribute__ ((unused))
209 #define SPA_NORETURN __attribute__ ((noreturn))
211 #define SPA_PRINTF_FUNC(fmt, arg1)
212 #define SPA_FORMAT_ARG_FUNC(arg1)
213 #define SPA_ALIGNED(align)
214 #define SPA_DEPRECATED
221 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
222 #define SPA_RESTRICT restrict
223 #elif defined(__GNUC__) && __GNUC__ >= 4
224 #define SPA_RESTRICT __restrict__
229 #define SPA_ROUND_DOWN_N(num,align) ((num) & ~((align) - 1))
230 #define SPA_ROUND_UP_N(num,align) SPA_ROUND_DOWN_N((num) + ((align) - 1),align)
232 #define SPA_PTR_ALIGNMENT(p,align) ((intptr_t)(p) & ((align)-1))
233 #define SPA_IS_ALIGNED(p,align) (SPA_PTR_ALIGNMENT(p,align) == 0)
234 #define SPA_PTR_ALIGN(p,align,type) (type*)SPA_ROUND_UP_N((intptr_t)(p), (intptr_t)(align))
238 #define SPA_LIKELY(x) (__builtin_expect(!!(x),1))
239 #define SPA_UNLIKELY(x) (__builtin_expect(!!(x),0))
241 #define SPA_LIKELY(x) (x)
242 #define SPA_UNLIKELY(x) (x)
246 #define SPA_STRINGIFY_1(...) #__VA_ARGS__
247 #define SPA_STRINGIFY(...) SPA_STRINGIFY_1(__VA_ARGS__)
249 #define spa_return_if_fail(expr) \
251 if (SPA_UNLIKELY(!(expr))) { \
252 fprintf(stderr, "'%s' failed at %s:%u %s()\n", \
253 #expr , __FILE__, __LINE__, __func__); \
258 #define spa_return_val_if_fail(expr, val) \
260 if (SPA_UNLIKELY(!(expr))) { \
261 fprintf(stderr, "'%s' failed at %s:%u %s()\n", \
262 #expr , __FILE__, __LINE__, __func__); \
270 #define spa_assert_se(expr) \
272 if (SPA_UNLIKELY(!(expr))) { \
273 fprintf(stderr, "'%s' failed at %s:%u %s()\n", \
274 #expr , __FILE__, __LINE__, __func__); \
279 #define spa_assert_se(expr) \
281 int _unique_var = (expr); \
288 #define spa_nop() do {} while (false)
291 #define spa_assert(expr) spa_nop()
292 #elif defined (FASTPATH)
293 #define spa_assert(expr) spa_assert_se(expr)
295 #define spa_assert(expr) spa_assert_se(expr)
299 #define spa_assert_not_reached() abort()
301 #define spa_assert_not_reached() \
303 fprintf(stderr, "Code should not be reached at %s:%u %s()\n", \
304 __FILE__, __LINE__, __func__); \
309 #define spa_memzero(x,l) (memset((x), 0, (l)))
310 #define spa_zero(x) (spa_memzero(&(x), sizeof(x)))
312 #ifdef SPA_DEBUG_MEMCPY
313 #define spa_memcpy(d,s,n) \
315 fprintf(stderr, "%s:%u %s() memcpy(%p, %p, %zd)\n", \
316 __FILE__, __LINE__, __func__, (d), (s), (size_t)(n)); \
319 #define spa_memmove(d,s,n) \
321 fprintf(stderr, "%s:%u %s() memmove(%p, %p, %zd)\n", \
322 __FILE__, __LINE__, __func__, (d), (s), (size_t)(n)); \
326 #define spa_memcpy(d,s,n) memcpy(d,s,n)
327 #define spa_memmove(d,s,n) memmove(d,s,n)
330 #define spa_aprintf(_fmt, ...) \
333 if (asprintf(&(_strp), (_fmt), ## __VA_ARGS__ ) == -1) \
spa_direction
Definition: defs.h:78
@ SPA_DIRECTION_INPUT
Definition: defs.h:79
@ SPA_DIRECTION_OUTPUT
Definition: defs.h:80
uint32_t num
Definition: defs.h:105
uint32_t denom
Definition: defs.h:106
int32_t y
Definition: defs.h:94
int32_t x
Definition: defs.h:93
uint32_t width
Definition: defs.h:87
uint32_t height
Definition: defs.h:88
struct spa_point position
Definition: defs.h:99
struct spa_rectangle size
Definition: defs.h:100