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#include "common.h"
#include "MemoryHeap.h"
#include "MemoryMgr.h"
uint8 *pMemoryTop;
void
InitMemoryMgr(void)
{
#ifdef USE_CUSTOM_ALLOCATOR
#ifdef GTA_PS2
#error "finish this"
#else
// randomly allocate 128mb
gMainHeap.Init(128*1024*1024);
#endif
#endif
}
RwMemoryFunctions memFuncs = {
MemoryMgrMalloc,
MemoryMgrFree,
MemoryMgrRealloc,
MemoryMgrCalloc
};
#ifdef USE_CUSTOM_ALLOCATOR
// game seems to be using heap directly here, but this is nicer
void *operator new(size_t sz) { return MemoryMgrMalloc(sz); }
void *operator new[](size_t sz) { return MemoryMgrMalloc(sz); }
void operator delete(void *ptr) noexcept { MemoryMgrFree(ptr); }
void operator delete[](void *ptr) noexcept { MemoryMgrFree(ptr); }
#endif
void*
MemoryMgrMalloc(size_t size)
{
#ifdef USE_CUSTOM_ALLOCATOR
void *mem = gMainHeap.Malloc(size);
#else
void *mem = malloc(size);
#endif
if((uint8*)mem + size > pMemoryTop)
pMemoryTop = (uint8*)mem + size ;
return mem;
}
void*
MemoryMgrRealloc(void *ptr, size_t size)
{
#ifdef USE_CUSTOM_ALLOCATOR
void *mem = gMainHeap.Realloc(ptr, size);
#else
void *mem = realloc(ptr, size);
#endif
if((uint8*)mem + size > pMemoryTop)
pMemoryTop = (uint8*)mem + size ;
return mem;
}
void*
MemoryMgrCalloc(size_t num, size_t size)
{
#ifdef USE_CUSTOM_ALLOCATOR
void *mem = gMainHeap.Malloc(num*size);
#else
void *mem = calloc(num, size);
#endif
if((uint8*)mem + size > pMemoryTop)
pMemoryTop = (uint8*)mem + size ;
#ifdef FIX_BUGS
memset(mem, 0, num*size);
#endif
return mem;
}
void
MemoryMgrFree(void *ptr)
{
#ifdef USE_CUSTOM_ALLOCATOR
#ifdef FIX_BUGS
// i don't suppose this is handled by RW?
if(ptr == nil) return;
#endif
gMainHeap.Free(ptr);
#else
free(ptr);
#endif
}
void *
RwMallocAlign(RwUInt32 size, RwUInt32 align)
{
#ifdef FIX_BUGS
uintptr ptralign = align-1;
void *mem = (void *)MemoryMgrMalloc(size + sizeof(uintptr) + ptralign);
ASSERT(mem != nil);
void *addr = (void *)((((uintptr)mem) + sizeof(uintptr) + ptralign) & ~ptralign);
ASSERT(addr != nil);
#else
void *mem = (void *)MemoryMgrMalloc(size + align);
ASSERT(mem != nil);
void *addr = (void *)((((uintptr)mem) + align) & ~(align - 1));
ASSERT(addr != nil);
#endif
*(((void **)addr) - 1) = mem;
return addr;
}
void
RwFreeAlign(void *mem)
{
ASSERT(mem != nil);
void *addr = *(((void **)mem) - 1);
ASSERT(addr != nil);
MemoryMgrFree(addr);
}
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