//
// getsysmemsize() -- gets the amount of system memory in the machine
//
unsigned int Bgetsysmemsize(void)
{
#ifdef _WIN32
unsigned int siz = 0x7fffffff;
HMODULE lib;
WINBASEAPI BOOL WINAPI (*aGlobalMemoryStatusEx)(LPMEMORYSTATUSEX) = 0;
lib = LoadLibrary("KERNEL32.DLL");
if (lib) aGlobalMemoryStatusEx = (void *)GetProcAddress(lib, "GlobalMemoryStatusEx");
if (aGlobalMemoryStatusEx) {
//WinNT
MEMORYSTATUSEX memst;
memst.dwLength = sizeof(MEMORYSTATUSEX);
if (aGlobalMemoryStatusEx(&memst)) {
siz = (unsigned int)min(longlong(0x7fffffff), memst.ullTotalPhys);
}
} else {
//Win9x
MEMORYSTATUS memst;
GlobalMemoryStatus(&memst);
siz = (unsigned int)memst.dwTotalPhys;
}
if (lib) FreeLibrary(lib);
return siz;
#elif (defined(_SC_PAGE_SIZE) || defined(_SC_PAGESIZE)) && defined(_SC_PHYS_PAGES)
unsigned int siz = 0x7fffffff;
long scpagesiz, scphyspages;
#ifdef _SC_PAGE_SIZE
scpagesiz = sysconf(_SC_PAGE_SIZE);
#else
scpagesiz = sysconf(_SC_PAGESIZE);
#endif
scphyspages = sysconf(_SC_PHYS_PAGES);
if (scpagesiz >= 0 && scphyspages >= 0)
siz = (unsigned int)min(longlong(0x7fffffff), (int64)scpagesiz * (int64)scphyspages);
//initprintf("Bgetsysmemsize(): %d pages of %d bytes, %d bytes of system memory\n",
// scphyspages, scpagesiz, siz);
return siz;
#else
return 0x7fffffff;
#endif
}
#include "tools/func_hook.hpp"
#include "MyDirectDrawSw.hpp"
template<typename FUNC>
struct HookInfo
{
const char* moduleName = nullptr;
const char* funcName = nullptr;
FUNC* original = nullptr;
const FUNC* hook = nullptr;
HookInfo(const char* m, const char* f, const FUNC* h):
moduleName(m), funcName(f), hook(h) {}
};
auto GetCursorPosHook = HookInfo<BOOL WINAPI(LPPOINT)> ("User32.dll", "GetCursorPos", &MyGetCursorPos);
auto ClientToScreenHook = HookInfo<BOOL WINAPI(HWND ,LPPOINT)>("User32.dll", "ClientToScreen", &MyClientToScreen);
auto Hooks = std::make_tuple(&GetCursorPosHook,
&ClientToScreenHook);
template<typename FUNC>
bool InitHook(HookInfo<FUNC>& hook, logger* mLog, HMODULE module)
{
const char* moduleName = hook.moduleName;
const char* funcName = hook.funcName;
if(nullptr == hook.original)
{
const HRESULT hr = func_hook::PatchIat(module,
moduleName,
funcName,
