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refactoring

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This commit is contained in:
FunkyFr3sh 2020-10-13 09:20:52 +02:00
parent 95afd87656
commit baaa87b18f
62 changed files with 7231 additions and 6636 deletions
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101
src/directinput.c Normal file
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#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"));
}