AuroraOpenALSoft/Alc/vector.h
2017-04-01 03:04:15 -07:00

94 lines
4.9 KiB
C

#ifndef AL_VECTOR_H
#define AL_VECTOR_H
#include <stdlib.h>
#include <AL/al.h>
#include "almalloc.h"
#define TYPEDEF_VECTOR(T, N) typedef struct { \
size_t Capacity; \
size_t Size; \
T Data[]; \
} _##N; \
typedef _##N* N; \
typedef const _##N* const_##N;
#define VECTOR(T) struct { \
size_t Capacity; \
size_t Size; \
T Data[]; \
}*
#define VECTOR_INIT(_x) do { (_x) = NULL; } while(0)
#define VECTOR_INIT_STATIC() NULL
#define VECTOR_DEINIT(_x) do { al_free((_x)); (_x) = NULL; } while(0)
#define VECTOR_RESIZE(_x, _s, _c) do { \
size_t _size = (_s); \
size_t _cap = (_c); \
if(_size > _cap) \
_cap = _size; \
\
if(!(_x) && _cap == 0) \
break; \
\
if(((_x) ? (_x)->Capacity : 0) < _cap) \
{ \
ptrdiff_t data_offset = (char*)((_x)->Data) - (char*)(_x); \
size_t old_size = ((_x) ? (_x)->Size : 0); \
void *temp; \
\
temp = al_calloc(16, data_offset + sizeof((_x)->Data[0])*_cap); \
assert(temp != NULL); \
if((_x)) \
memcpy(((char*)temp)+data_offset, (_x)->Data, \
sizeof((_x)->Data[0])*old_size); \
\
al_free((_x)); \
(_x) = temp; \
(_x)->Capacity = _cap; \
} \
(_x)->Size = _size; \
} while(0) \
#define VECTOR_CAPACITY(_x) ((_x) ? (_x)->Capacity : 0)
#define VECTOR_SIZE(_x) ((_x) ? (_x)->Size : 0)
#define VECTOR_BEGIN(_x) ((_x) ? (_x)->Data + 0 : NULL)
#define VECTOR_END(_x) ((_x) ? (_x)->Data + (_x)->Size : NULL)
#define VECTOR_PUSH_BACK(_x, _obj) do { \
size_t _pbsize = VECTOR_SIZE(_x)+1; \
VECTOR_RESIZE(_x, _pbsize, _pbsize); \
(_x)->Data[(_x)->Size-1] = (_obj); \
} while(0)
#define VECTOR_POP_BACK(_x) ((void)((_x)->Size--))
#define VECTOR_BACK(_x) ((_x)->Data[(_x)->Size-1])
#define VECTOR_FRONT(_x) ((_x)->Data[0])
#define VECTOR_ELEM(_x, _o) ((_x)->Data[(_o)])
#define VECTOR_FOR_EACH(_t, _x, _f) do { \
_t *_iter = VECTOR_BEGIN((_x)); \
_t *_end = VECTOR_END((_x)); \
for(;_iter != _end;++_iter) \
_f(_iter); \
} while(0)
#define VECTOR_FIND_IF(_i, _t, _x, _f) do { \
_t *_iter = VECTOR_BEGIN((_x)); \
_t *_end = VECTOR_END((_x)); \
for(;_iter != _end;++_iter) \
{ \
if(_f(_iter)) \
break; \
} \
(_i) = _iter; \
} while(0)
#endif /* AL_VECTOR_H */