mirror of
https://github.com/ACreTeam/ac-decomp
synced 2026-05-23 14:41:38 -04:00
Prakxo
103 lines
2.1 KiB
C
103 lines
2.1 KiB
C
#include "TwoHeadArena.h"
|
|
|
|
#include "libultra/libultra.h"
|
|
#include "types.h"
|
|
|
|
/* @fabricated */
|
|
/*
|
|
extern void* THA_getHeadPtr(TwoHeadArena* this) {
|
|
return this->head_p;
|
|
}
|
|
*/
|
|
|
|
/* @fabricated */
|
|
/*
|
|
extern void THA_setHeadPtr(TwoHeadArena* this, void* p) {
|
|
this->head_p = (char*)p;
|
|
}
|
|
*/
|
|
|
|
/* @fabricated */
|
|
/*
|
|
extern void* THA_getTailPtr(TwoHeadArena* this) {
|
|
return this->tail_p;
|
|
}
|
|
*/
|
|
|
|
/* @fabricated */
|
|
/*
|
|
extern void* THA_nextPtrN(TwoHeadArena* this, size_t n) {
|
|
char* next_p = this->head_p;
|
|
this->head_p += n;
|
|
return (void*)next_p;
|
|
}
|
|
*/
|
|
|
|
/* @fabricated */
|
|
/*
|
|
extern void* THA_nextPtr1(TwoHeadArena* this) {
|
|
return THA_nextPtrN(this, 1);
|
|
}
|
|
*/
|
|
|
|
/* @fabricated */
|
|
/*
|
|
extern void* THA_alloc(TwoHeadArena* this, size_t siz) {
|
|
u32 mask;
|
|
if (siz == 8) {
|
|
mask = ~(8 - 1);
|
|
} else if (siz == 2 || siz == 6 || siz == 10 || siz == 14) {
|
|
mask = ~(2 - 1);
|
|
} else if (siz > 15) {
|
|
mask = ~(16 - 1);
|
|
} else {
|
|
mask = ~0;
|
|
}
|
|
|
|
this->tail_p = (char*)((((u32)this->tail_p & mask) - siz) & mask);
|
|
return this->tail_p;
|
|
}
|
|
*/
|
|
|
|
extern void* THA_alloc16(TwoHeadArena* this, size_t siz) {
|
|
const int mask = ~(16 - 1);
|
|
this->tail_p = (char*)((((u32)this->tail_p & mask) - siz) & mask);
|
|
return this->tail_p;
|
|
}
|
|
|
|
extern void* THA_allocAlign(TwoHeadArena* this, size_t siz, int mask) {
|
|
this->tail_p = (char*)((((u32)this->tail_p & mask) - siz) & mask);
|
|
return this->tail_p;
|
|
}
|
|
|
|
extern int THA_getFreeBytesAlign(TwoHeadArena* this, int mask) {
|
|
return (int)this->tail_p - (mask & (int)(this->head_p + ~mask));
|
|
}
|
|
|
|
extern int THA_getFreeBytes16(TwoHeadArena* this) {
|
|
return THA_getFreeBytesAlign(this, -16);
|
|
}
|
|
|
|
extern int THA_getFreeBytes(TwoHeadArena* this) {
|
|
return THA_getFreeBytesAlign(this, -1);
|
|
}
|
|
|
|
extern int THA_isCrash(TwoHeadArena* this) {
|
|
return THA_getFreeBytes(this) < 0;
|
|
}
|
|
|
|
extern void THA_init(TwoHeadArena* this) {
|
|
this->head_p = this->buf_p;
|
|
this->tail_p = this->buf_p + this->size;
|
|
}
|
|
|
|
extern void THA_ct(TwoHeadArena* this, char* p, size_t n) {
|
|
this->buf_p = p;
|
|
this->size = n;
|
|
THA_init(this);
|
|
}
|
|
|
|
extern void THA_dt(TwoHeadArena* this) {
|
|
bzero(this, sizeof(TwoHeadArena));
|
|
}
|