mirror of
https://github.com/FunkyFr3sh/cnc-ddraw.git
synced 2025-03-23 00:52:18 +01:00
103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
|
|
#include <windows.h>
|
|
#include <dinput.h>
|
|
#include "debug.h"
|
|
#include "hook.h"
|
|
#include "dd.h"
|
|
|
|
typedef HRESULT (WINAPI *DIRECTINPUTCREATEAPROC)(HINSTANCE, DWORD, LPDIRECTINPUTA*, LPUNKNOWN);
|
|
typedef HRESULT (WINAPI *DICREATEDEVICEPROC)(IDirectInputA*, REFGUID, LPDIRECTINPUTDEVICEA *, LPUNKNOWN);
|
|
typedef HRESULT (WINAPI *DIDSETCOOPERATIVELEVELPROC)(IDirectInputDeviceA *, HWND, DWORD);
|
|
typedef HRESULT (WINAPI *DIDGETDEVICEDATAPROC)(IDirectInputDeviceA*, DWORD, LPDIDEVICEOBJECTDATA, LPDWORD, DWORD);
|
|
|
|
static DIRECTINPUTCREATEAPROC real_DirectInputCreateA;
|
|
static DICREATEDEVICEPROC real_di_CreateDevice;
|
|
static DIDSETCOOPERATIVELEVELPROC real_did_SetCooperativeLevel;
|
|
static DIDGETDEVICEDATAPROC real_did_GetDeviceData;
|
|
|
|
static PROC hook_func(PROC *org_func, PROC new_func)
|
|
{
|
|
PROC org = *org_func;
|
|
DWORD old_protect;
|
|
|
|
if (VirtualProtect(org_func, sizeof(PROC), PAGE_EXECUTE_READWRITE, &old_protect))
|
|
{
|
|
*org_func = new_func;
|
|
VirtualProtect(org_func, sizeof(PROC), old_protect, &old_protect);
|
|
|
|
return org;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static HRESULT WINAPI fake_did_SetCooperativeLevel(IDirectInputDeviceA *This, HWND hwnd, DWORD dwFlags)
|
|
{
|
|
return real_did_SetCooperativeLevel(This, hwnd, DISCL_BACKGROUND | DISCL_NONEXCLUSIVE);
|
|
}
|
|
|
|
static HRESULT WINAPI fake_did_GetDeviceData(IDirectInputDeviceA *This, DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags)
|
|
{
|
|
HRESULT result = real_did_GetDeviceData(This, cbObjectData, rgdod, pdwInOut, dwFlags);
|
|
|
|
if (SUCCEEDED(result) && g_ddraw && !g_ddraw->locked)
|
|
{
|
|
*pdwInOut = 0;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static HRESULT WINAPI fake_di_CreateDevice(IDirectInputA *This, REFGUID rguid, LPDIRECTINPUTDEVICEA * lplpDIDevice, LPUNKNOWN pUnkOuter)
|
|
{
|
|
HRESULT result = real_di_CreateDevice(This, rguid, lplpDIDevice, pUnkOuter);
|
|
|
|
if (SUCCEEDED(result) && !real_did_SetCooperativeLevel)
|
|
{
|
|
real_did_SetCooperativeLevel =
|
|
(DIDSETCOOPERATIVELEVELPROC)hook_func(
|
|
(PROC *)&(*lplpDIDevice)->lpVtbl->SetCooperativeLevel, (PROC)fake_did_SetCooperativeLevel);
|
|
|
|
real_did_GetDeviceData =
|
|
(DIDGETDEVICEDATAPROC)hook_func(
|
|
(PROC*)&(*lplpDIDevice)->lpVtbl->GetDeviceData, (PROC)fake_did_GetDeviceData);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static HRESULT WINAPI fake_DirectInputCreateA(HINSTANCE hinst, DWORD dwVersion, LPDIRECTINPUTA* lplpDirectInput, LPUNKNOWN punkOuter)
|
|
{
|
|
dprintf("DirectInputCreateA\n");
|
|
|
|
real_DirectInputCreateA =
|
|
(DIRECTINPUTCREATEAPROC)GetProcAddress(GetModuleHandle("dinput.dll"), "DirectInputCreateA");
|
|
|
|
if (!real_DirectInputCreateA)
|
|
return DIERR_GENERIC;
|
|
|
|
HRESULT result = real_DirectInputCreateA(hinst, dwVersion, lplpDirectInput, punkOuter);
|
|
|
|
if (SUCCEEDED(result) && !real_di_CreateDevice)
|
|
{
|
|
real_di_CreateDevice =
|
|
(DICREATEDEVICEPROC)hook_func((PROC *)&(*lplpDirectInput)->lpVtbl->CreateDevice, (PROC)fake_di_CreateDevice);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void dinput_hook()
|
|
{
|
|
hook_patch_iat(GetModuleHandle(NULL), "dinput.dll", "DirectInputCreateA", (PROC)fake_DirectInputCreateA);
|
|
}
|
|
|
|
void dinput_unhook()
|
|
{
|
|
hook_patch_iat(
|
|
GetModuleHandle(NULL),
|
|
"dinput.dll",
|
|
"DirectInputCreateA",
|
|
(PROC)GetProcAddress(GetModuleHandle("dinput.dll"), "DirectInputCreateA"));
|
|
}
|