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#include "pch.h"
#include "tier0.h"
#include <stdio.h>
#include <iostream>
void* ResolveTier0Function(const char* name)
{
HMODULE tier0 = GetModuleHandle(L"tier0.dll");
// todo: maybe cache resolved funcs? idk the performance hit of getprocaddress
std::cout << "ResolveTier0Function " << name << " " << tier0 << "::" << GetProcAddress(tier0, name) << std::endl;
return GetProcAddress(tier0, name);
}
// memory stuff
typedef IMemAlloc* (*Tier0CreateGlobalMemAlloc)();
void* operator new(size_t n)
{
// we should be trying to use tier0's g_pMemAllocSingleton, but atm i can't get it stable
// this actually seems relatively stable though, somehow???
return malloc(n);
//IMemAlloc** alloc = (IMemAlloc**)ResolveTier0Function("g_pMemAllocSingleton");
//if (!alloc)
//{
// Tier0CreateGlobalMemAlloc createAlloc = (Tier0CreateGlobalMemAlloc)ResolveTier0Function("CreateGlobalMemAlloc");
// if (!createAlloc)
// return malloc(n);
// else
// (*alloc) = createAlloc();
//}
//
//return (*alloc)->m_vtable->Alloc(*alloc, n);
}
void operator delete(void* p) throw()
{
// we should be trying to use tier0's g_pMemAllocSingleton, but atm i can't get it stable
// this actually seems relatively stable though, somehow???
free(p);
//IMemAlloc** alloc = (IMemAlloc**)ResolveTier0Function("g_pMemAllocSingleton");
//if (!alloc)
//{
// Tier0CreateGlobalMemAlloc createAlloc = (Tier0CreateGlobalMemAlloc)ResolveTier0Function("CreateGlobalMemAlloc");
// if (!createAlloc)
// {
// free(p);
// return;
// }
// else
// (*alloc) = createAlloc();
//}
//
//(*alloc)->m_vtable->Free(*alloc, p);
}
typedef void(*Tier0Error)(const char* fmt, ...);
void Error(const char* fmt, ...)
{
Tier0Error tier0Func = (Tier0Error)ResolveTier0Function("Error");
// reformat args because you can't pass varargs between funcs
char buf[1024];
va_list args;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
// tier0 isn't loaded yet
//if (tier0Func)
// tier0Func(buf);
//else
std::cout << "FATAL ERROR " << buf << std::endl;
}
typedef double(*Tier0FloatTime)();
double Plat_FloatTime()
{
Tier0FloatTime tier0Func = (Tier0FloatTime)ResolveTier0Function("Plat_FloatTime");
if (tier0Func)
{
return tier0Func();
}
else
return 0.0f;
}
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