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Code Issues Projects Releases Activity

make Windows API Hooking optional

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FunkyFr3sh 2019-04-01 22:54:36 +02:00
parent 9bd26df82c
commit 9e1397d0f6
4 changed files with 34 additions and 29 deletions
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2
inc/hook.h
View File

@ -46,6 +46,6 @@ extern BOOL Hook_Active;
void Hook_Init();
void Hook_PatchIAT(HMODULE hMod, char *moduleName, char *functionName, PROC newFunction);
PROC Hook_HotPatch(PROC function, PROC newFunction);
void Hook_TryHotPatch(char *moduleName, char *functionName, PROC newFunction, PROC *function);
void Hook_Create(char *moduleName, char *functionName, PROC newFunction, PROC *function);
#endif

2
inc/main.h
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@ -124,7 +124,7 @@ typedef struct IDirectDrawImpl
BOOL altenter;
BOOL hidecursor;
BOOL accurateTimers;
BOOL hotPatch;
BOOL hook;
SpeedLimiter ticksLimiter;
SpeedLimiter flipLimiter;
SpeedLimiter fpsLimiter;

53
src/hook.c
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@ -133,17 +133,22 @@ PROC Hook_HotPatch(PROC function, PROC newFunction)
return result;
}
void Hook_TryHotPatch(char *moduleName, char *functionName, PROC newFunction, PROC *function)
void Hook_Create(char *moduleName, char *functionName, PROC newFunction, PROC *function)
{
FARPROC org = GetProcAddress(GetModuleHandle(moduleName), functionName);
if (ddraw->hotPatch && org)
{
*function = Hook_HotPatch(org, newFunction);
if (!ddraw->hook)
return;
if (*function == org) // hotpatch failed...
if (ddraw->hook >= 2)
{
FARPROC org = GetProcAddress(GetModuleHandle(moduleName), functionName);
if (org)
*function = Hook_HotPatch(org, newFunction);
if ((!org || *function == org) && ddraw->hook == 3) // hotpatch failed...
Hook_PatchIAT(GetModuleHandle(NULL), moduleName, functionName, newFunction);
}
else
else
{
Hook_PatchIAT(GetModuleHandle(NULL), moduleName, functionName, newFunction);
}
@ -155,23 +160,23 @@ void Hook_Init()
{
Hook_Active = TRUE;
Hook_TryHotPatch("user32.dll", "GetCursorPos", (PROC)fake_GetCursorPos, (PROC *)&real_GetCursorPos);
Hook_TryHotPatch("user32.dll", "ClipCursor", (PROC)fake_ClipCursor, (PROC *)&real_ClipCursor);
Hook_TryHotPatch("user32.dll", "ShowCursor", (PROC)fake_ShowCursor, (PROC *)&real_ShowCursor);
Hook_TryHotPatch("user32.dll", "SetCursor", (PROC)fake_SetCursor, (PROC *)&real_SetCursor);
Hook_TryHotPatch("user32.dll", "GetWindowRect", (PROC)fake_GetWindowRect, (PROC *)&real_GetWindowRect);
Hook_TryHotPatch("user32.dll", "GetClientRect", (PROC)fake_GetClientRect, (PROC *)&real_GetClientRect);
Hook_TryHotPatch("user32.dll", "ClientToScreen", (PROC)fake_ClientToScreen, (PROC *)&real_ClientToScreen);
Hook_TryHotPatch("user32.dll", "ScreenToClient", (PROC)fake_ScreenToClient, (PROC *)&real_ScreenToClient);
Hook_TryHotPatch("user32.dll", "SetCursorPos", (PROC)fake_SetCursorPos, (PROC *)&real_SetCursorPos);
Hook_TryHotPatch("user32.dll", "GetClipCursor", (PROC)fake_GetClipCursor, (PROC *)&real_GetClipCursor);
Hook_TryHotPatch("user32.dll", "WindowFromPoint", (PROC)fake_WindowFromPoint, (PROC *)&real_WindowFromPoint);
Hook_TryHotPatch("user32.dll", "GetCursorInfo", (PROC)fake_GetCursorInfo, (PROC *)&real_GetCursorInfo);
Hook_TryHotPatch("user32.dll", "GetSystemMetrics", (PROC)fake_GetSystemMetrics, (PROC *)&real_GetSystemMetrics);
Hook_TryHotPatch("user32.dll", "SetWindowPos", (PROC)fake_SetWindowPos, (PROC *)&real_SetWindowPos);
Hook_TryHotPatch("user32.dll", "MoveWindow", (PROC)fake_MoveWindow, (PROC *)&real_MoveWindow);
Hook_TryHotPatch("user32.dll", "SendMessageA", (PROC)fake_SendMessageA, (PROC *)&real_SendMessageA);
Hook_TryHotPatch("user32.dll", "SetWindowLongA", (PROC)fake_SetWindowLongA, (PROC *)&real_SetWindowLongA);
Hook_Create("user32.dll", "GetCursorPos", (PROC)fake_GetCursorPos, (PROC *)&real_GetCursorPos);
Hook_Create("user32.dll", "ClipCursor", (PROC)fake_ClipCursor, (PROC *)&real_ClipCursor);
Hook_Create("user32.dll", "ShowCursor", (PROC)fake_ShowCursor, (PROC *)&real_ShowCursor);
Hook_Create("user32.dll", "SetCursor", (PROC)fake_SetCursor, (PROC *)&real_SetCursor);
Hook_Create("user32.dll", "GetWindowRect", (PROC)fake_GetWindowRect, (PROC *)&real_GetWindowRect);
Hook_Create("user32.dll", "GetClientRect", (PROC)fake_GetClientRect, (PROC *)&real_GetClientRect);
Hook_Create("user32.dll", "ClientToScreen", (PROC)fake_ClientToScreen, (PROC *)&real_ClientToScreen);
Hook_Create("user32.dll", "ScreenToClient", (PROC)fake_ScreenToClient, (PROC *)&real_ScreenToClient);
Hook_Create("user32.dll", "SetCursorPos", (PROC)fake_SetCursorPos, (PROC *)&real_SetCursorPos);
Hook_Create("user32.dll", "GetClipCursor", (PROC)fake_GetClipCursor, (PROC *)&real_GetClipCursor);
Hook_Create("user32.dll", "WindowFromPoint", (PROC)fake_WindowFromPoint, (PROC *)&real_WindowFromPoint);
Hook_Create("user32.dll", "GetCursorInfo", (PROC)fake_GetCursorInfo, (PROC *)&real_GetCursorInfo);
Hook_Create("user32.dll", "GetSystemMetrics", (PROC)fake_GetSystemMetrics, (PROC *)&real_GetSystemMetrics);
Hook_Create("user32.dll", "SetWindowPos", (PROC)fake_SetWindowPos, (PROC *)&real_SetWindowPos);
Hook_Create("user32.dll", "MoveWindow", (PROC)fake_MoveWindow, (PROC *)&real_MoveWindow);
Hook_Create("user32.dll", "SendMessageA", (PROC)fake_SendMessageA, (PROC *)&real_SendMessageA);
Hook_Create("user32.dll", "SetWindowLongA", (PROC)fake_SetWindowLongA, (PROC *)&real_SetWindowLongA);
//Hook_PatchIAT(GetModuleHandle(NULL), "user32.dll", "GetCursorPos", (PROC)fake_GetCursorPos);
}

6
src/settings.c
View File

@ -41,13 +41,13 @@ void Settings_Load()
ddraw->noactivateapp = GetBool("noactivateapp", FALSE);
ddraw->vhack = GetBool("vhack", FALSE);
ddraw->accurateTimers = GetBool("accuratetimers", FALSE);
ddraw->hotPatch = GetBool("hotpatch", FALSE);
WindowRect.right = GetInt("width", 0);
WindowRect.bottom = GetInt("height", 0);
WindowRect.left = GetInt("posX", -32000);
WindowRect.top = GetInt("posY", -32000);
ddraw->hook = GetInt("hook", 1);
ddraw->render.maxfps = GetInt("maxfps", 125);
if (ddraw->accurateTimers || ddraw->vsync)
@ -275,9 +275,9 @@ static void CreateSettingsIni()
"; Force CPU0 affinity, avoids crashes/freezing, *might* have a performance impact\n"
"singlecpu=true\n"
"\n"
"; Use hotpatching rather than IAT hooking\n"
"; Windows API Hooking, Possible values: 0 = disabled, 1 = IAT Hooking, 2 = HotPatch, 3 = Try HotPatch / fallback = IAT Hooking\n"
"; Note: Can be used to fix issues related to new features added by cnc-ddraw such as windowed mode or stretching\n"
"hotpatch=false\n"
"hook=1\n"
"\n"
"\n"
"\n"