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Fix various high fps issues #2784

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Merged
merged 2 commits into from
Oct 11, 2022
Merged

Fix various high fps issues #2784

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cf5559e
Fix various high fps issues
Merlin Oct 11, 2022
ffab354
Requested changes
Merlin Oct 11, 2022
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148 changes: 147 additions & 1 deletion Client/multiplayer_sa/CMultiplayerSA_FrameRateFixes.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,6 @@ constexpr float kOriginalTimeStep = 50.0f / 30.0f;
#define HOOKPOS_CTaskSimpleUseGun__SetMoveAnim 0x61E4F2
#define HOOKSIZE_CTaskSimpleUseGun__SetMoveAnim 0x6
const unsigned int RETURN_CTaskSimpleUseGun__SetMoveAnim = 0x61E4F8;

void _declspec(naked) HOOK_CTaskSimpleUseGun__SetMoveAnim()
{
_asm {
Expand Down Expand Up @@ -74,6 +73,133 @@ static void _declspec(naked) HOOK_CHeli__ProcessFlyingCarStuff()
}
}

#define HOOKPOS_CClouds__MovingFog_Update 0x716BA6
#define HOOKSIZE_CClouds__MovingFog_Update 0x16
static const unsigned int RETURN_CClouds__MovingFog_Update = 0x716BBC;
static void _declspec(naked) HOOK_CClouds__MovingFog_Update()
{
_asm {
fmul [edi*4+0xC6E394] // CClouds::ms_mf.fSpeedFactor
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fadd [esi]
fstp [esi]
fld [esp+0x18]
fmul [edi*4+0xC6E394] // CClouds::ms_mf.fSpeedFactor
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
jmp RETURN_CClouds__MovingFog_Update
}
}

#define HOOKPOS_CFallingGlassPane__Update_A 0x71AABF
#define HOOKSIZE_CFallingGlassPane__Update_A 0x6
static const unsigned int RETURN_CFallingGlassPane__Update_A = 0x71AAC5;
static void _declspec(naked) HOOK_CFallingGlassPane__Update_A()
{
_asm {
fld [esp+0x28]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fstp [esp+0x28]
fld [esp+0x24]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fstp [esp+0x24]
fld [esp+0x20]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fadd [esi]
jmp RETURN_CFallingGlassPane__Update_A
}
}

#define HOOKPOS_CFallingGlassPane__Update_B 0x71AAEA
#define HOOKSIZE_CFallingGlassPane__Update_B 0x6
static const unsigned int RETURN_CFallingGlassPane__Update_B = 0x71AAF0;
static void _declspec(naked) HOOK_CFallingGlassPane__Update_B()
{
_asm {
fld [eax]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fstp [eax]
fld [eax+0x4]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fstp [eax+0x4]
fld [eax+0x8]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fstp [eax+0x8]
mov ecx, [eax]
mov [esp+0x2C], ecx
jmp RETURN_CFallingGlassPane__Update_B
}
}

#define HOOKPOS_CFallingGlassPane__Update_C 0x71AB29
#define HOOKSIZE_CFallingGlassPane__Update_C 0x6
static const unsigned int RETURN_CFallingGlassPane__Update_C = 0x71AB2F;
static void _declspec(naked) HOOK_CFallingGlassPane__Update_C()
{
_asm {
fld [eax]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fstp [eax]
fld [eax+0x4]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fstp [eax+0x4]
fld [eax+0x8]
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
fstp [eax+0x8]
mov edx, [eax]
mov [esp+0x38], edx
jmp RETURN_CFallingGlassPane__Update_C
}
}

#define HOOKPOS_CPhysical__ApplyAirResistance 0x544D29
#define HOOKSIZE_CPhysical__ApplyAirResistance 5
static const unsigned int RETURN_CPhysical__ApplyAirResistance = 0x544D4D;
static void _declspec(naked) HOOK_CPhysical__ApplyAirResistance()
{
_asm {
fld ds:[0x862CD0] // 0.99000001f
fld ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
mov eax, 0x822130 // powf
call eax

fld st(0)
fmul [esi+0x50]
fstp [esi+0x50]

fld st(0)
fmul [esi+0x54]
fstp [esi+0x54]

fmul [esi+0x58]
fstp [esi+0x58]
jmp RETURN_CPhysical__ApplyAirResistance
}
}

template <unsigned int returnAddress>
static void _declspec(naked) HOOK_VehicleRapidStopFix()
{
static unsigned int RETURN_VehicleRapidStopFix = returnAddress;
_asm {
fld ds:[0xC2B9CC] // mod_HandlingManager.m_fWheelFriction
fmul ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep // 1.666f
jmp RETURN_VehicleRapidStopFix
}
}

#define HOOKPOS_CTimer__Update 0x561C5D
#define HOOKSIZE_CTimer__Update 0xE
static void _declspec(naked) HOOK_CTimer__Update()
Expand Down Expand Up @@ -470,6 +596,26 @@ void CMultiplayerSA::InitHooks_FrameRateFixes()
EZHookInstall(CTaskSimpleUseGun__SetMoveAnim);
EZHookInstall(CCamera__Process);
EZHookInstall(CHeli__ProcessFlyingCarStuff);
EZHookInstall(CClouds__MovingFog_Update);
EZHookInstall(CFallingGlassPane__Update_A);
EZHookInstall(CFallingGlassPane__Update_B);
EZHookInstall(CFallingGlassPane__Update_C);
EZHookInstall(CPhysical__ApplyAirResistance);

// CVehicle::ProcessWheel
HookInstall(0x6D6E69, (DWORD)HOOK_VehicleRapidStopFix<0x6D6E6F>, 6);
HookInstall(0x6D6EA8, (DWORD)HOOK_VehicleRapidStopFix<0x6D6EAE>, 6);

// CVehicle::ProcessBikeWheel
HookInstall(0x6D767F, (DWORD)HOOK_VehicleRapidStopFix<0x6D7685>, 6);
HookInstall(0x6D76AB, (DWORD)HOOK_VehicleRapidStopFix<0x6D76B1>, 6);
HookInstall(0x6D76CD, (DWORD)HOOK_VehicleRapidStopFix<0x6D76D3>, 6);

// CCam::Process_FollowCar_SA
MemSet((void*)0x524FD7, 0x90, 0x1B);

// CVehicle::ProcessBoatControl
MemPut(0x6DC23F, &kOriginalTimeStep);

// CTimer::m_FrameCounter fixes
EZHookInstall(CTimer__Update);
Expand Down