public static void *stbtt__hheap_alloc(stbtt__hheap *hh, ulong size, void *userdata)
{
if ((hh->first_free) != null)
{
void *p = hh->first_free;
hh->first_free = *(void **)(p);
return(p);
}
else
{
if ((hh->num_remaining_in_head_chunk) == (0))
{
int count = (int)((size) < (32) ? 2000 : (size) < (128) ? 800 : 100);
stbtt__hheap_chunk *c = (stbtt__hheap_chunk *)(CRuntime.malloc((ulong)((ulong)sizeof(stbtt__hheap_chunk) + size * (ulong)(count))));
if ((c) == (null))
{
return(null);
}
c->next = hh->head;
hh->head = c;
hh->num_remaining_in_head_chunk = (int)(count);
}
--hh->num_remaining_in_head_chunk;
return((sbyte *)(hh->head) + sizeof(stbtt__hheap_chunk) + size * (ulong)hh->num_remaining_in_head_chunk);
}
}
public static void stbtt__hheap_cleanup(stbtt__hheap *hh, void *userdata)
{
stbtt__hheap_chunk *c = hh->head;
while ((c) != null)
{
stbtt__hheap_chunk *n = c->next;
CRuntime.free(c);
c = n;
}
}