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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // GNU Lesser General Public License v3 (LGPL v3) | ||
| // | ||
| // Copyright (c) 2020 nyfrk <nyfrk@gmx.net> | ||
| // | ||
| // This file is part of S4ModApi. | ||
| // | ||
| // S4ModApi is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // S4ModApi is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with S4ModApi. If not, see <https://www.gnu.org/licenses/lgpl-3.0>. | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
|
|
||
| #include "globals.h" // g_isGE, hProcess | ||
| #include "hlib.h" // JmpPatch | ||
| #include "patterns.h" | ||
|
|
||
| #include "CGuiBltHook.h" | ||
|
|
||
| static hlib::CallPatch OnComposeBltHook, OnSettlerIdHook; | ||
|
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| BOOL __stdcall CGuiBltHook::OnBlt(DWORD id, LPVOID dstSurface, LPRECT dstRect, LPVOID srcSurface, LPRECT srcRect, DWORD ddbltFlags, LPVOID ddbltfx) { | ||
| //TRACE; // we do not log this as it will be a mayor performance hit | ||
| mutex.lock(); | ||
| auto observers = GetInstance().observers; // obtain a copy since the callbacks may modify the vector | ||
| mutex.unlock(); | ||
| BOOL discard = false; | ||
| S4GuiBltParams params; | ||
|
|
||
| params.id = id / 4; // id goes from 0x130 (incl) to 0x167 (excl) | ||
| params.dstSurface = dstSurface; | ||
| params.dstRect = dstRect; | ||
| params.srcSurface = srcSurface; | ||
| params.srcRect = srcRect; | ||
| params.ddbltFlags = ddbltFlags; | ||
| params.ddbltfx = ddbltfx; | ||
|
|
||
| for (auto& observer : observers) { | ||
| discard |= ((LPS4GUIBLTCALLBACK)observer.callback)(¶ms, discard); | ||
| } | ||
|
|
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| return discard; | ||
| } | ||
|
|
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| static void __declspec(naked) __onBlt() { | ||
| __asm { | ||
| sub esp, 16 | ||
| movdqu[esp], xmm0 | ||
| sub esp, 16 | ||
| movdqu[esp], xmm1 | ||
| sub esp, 16 | ||
| movdqu[esp], xmm2 | ||
| sub esp, 16 | ||
| movdqu[esp], xmm3 | ||
| sub esp, 16 | ||
| movdqu[esp], xmm4 | ||
| sub esp, 16 | ||
| movdqu[esp], xmm5 | ||
| sub esp, 16 | ||
| movdqu[esp], xmm6 | ||
| sub esp, 16 | ||
| movdqu[esp], xmm7 | ||
| sub esp, 128 | ||
| fsave[esp] | ||
|
|
||
| push ecx | ||
| push edx | ||
| push[esp + 256 + 4 + 20] | ||
| push[esp + 256 + 4 + 20] | ||
| push[esp + 256 + 4 + 20] | ||
| push[esp + 256 + 4 + 20] | ||
| push[esp + 256 + 4 + 20] | ||
| push ecx | ||
| push edi | ||
| call CGuiBltHook::OnBlt | ||
| pop edx | ||
| pop ecx | ||
|
|
||
| frstor[esp] | ||
| add esp, 128 | ||
| movdqu xmm7, [esp] | ||
| add esp, 16 | ||
| movdqu xmm6, [esp] | ||
| add esp, 16 | ||
| movdqu xmm5, [esp] | ||
| add esp, 16 | ||
| movdqu xmm4, [esp] | ||
| add esp, 16 | ||
| movdqu xmm3, [esp] | ||
| add esp, 16 | ||
| movdqu xmm2, [esp] | ||
| add esp, 16 | ||
| movdqu xmm1, [esp] | ||
| add esp, 16 | ||
| movdqu xmm0, [esp] | ||
| add esp, 16 | ||
|
|
||
| test al, al | ||
| pushf | ||
| xor eax, eax | ||
| popf | ||
| jnz lbl_skip_original | ||
| push[esp + 20] | ||
| push[esp + 20] | ||
| push[esp + 20] | ||
| push[esp + 20] | ||
| push[esp + 20] | ||
| call [esi + 0x18] | ||
|
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| lbl_skip_original: | ||
|
|
||
| pop esi // ret addr | ||
| add esp, 20 // clean the stack | ||
|
|
||
| push esi | ||
| test eax, eax | ||
| ret | ||
| } | ||
| } | ||
|
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| CGuiBltHook& CGuiBltHook::GetInstance() { | ||
| static CGuiBltHook inst; | ||
| return inst; | ||
| } | ||
|
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| bool CGuiBltHook::Init() { | ||
| TRACE; | ||
| /* | ||
| S4_Main.exe+2647C6 - 8B 45 FC - mov eax,[ebp-04] | ||
| S4_Main.exe+2647C9 - 8B 15 08875401 - mov edx,[S4_Main.exe+1058708] { (04860720) } | ||
| S4_Main.exe+2647CF - 8D 80 D8456E01 - lea eax,[eax+S4_Main.exe+11F45D8] | ||
| S4_Main.exe+2647D5 - 8B 4A 5C - mov ecx,[edx+5C] | ||
| S4_Main.exe+2647D8 - 50 - push eax | ||
| S4_Main.exe+2647D9 - 8B 45 FC - mov eax,[ebp-04] | ||
| S4_Main.exe+2647DC - FF 34 17 - push [edi+edx] | ||
| S4_Main.exe+2647DF - 8B 31 - mov esi,[ecx] | ||
| S4_Main.exe+2647E1 - 8D 80 B8466E01 - lea eax,[eax+S4_Main.exe+11F46B8] | ||
| S4_Main.exe+2647E7 - 50 - push eax | ||
| S4_Main.exe+2647E8 - FF 56 18 - call dword ptr [esi+18] <--- we hook here, 5 arguments + ecx | ||
| S4_Main.exe+2647EB - 85 C0 - test eax,eax | ||
| */ | ||
|
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||
|
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| DWORD addr = S4_Main != 0 ? S4_Main + 0x2647E8 : 0; | ||
| if (!addr) return false; | ||
|
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| OnComposeBltHook = hlib::CallPatch(addr, (DWORD)__onBlt); | ||
|
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| return true; | ||
| } | ||
|
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| void CGuiBltHook::Patch() { | ||
| TRACE; | ||
| OnComposeBltHook.patch(); | ||
| } | ||
|
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| void CGuiBltHook::Unpatch() { | ||
| TRACE; | ||
| OnComposeBltHook.unpatch(); | ||
| } | ||
|
|
||
| CGuiBltHook::CGuiBltHook() { TRACE; } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // GNU Lesser General Public License v3 (LGPL v3) | ||
| // | ||
| // Copyright (c) 2020 nyfrk <nyfrk@gmx.net> | ||
| // | ||
| // This file is part of S4ModApi. | ||
| // | ||
| // S4ModApi is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // S4ModApi is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with S4ModApi. If not, see <https://www.gnu.org/licenses/lgpl-3.0>. | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
|
|
||
| #pragma once | ||
|
|
||
| #include "CHook.h" | ||
|
|
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| class CGuiBltHook : public CHook { | ||
| public: | ||
| static CGuiBltHook& GetInstance(); | ||
|
|
||
| protected: | ||
| virtual bool Init(); | ||
| virtual void Patch(); | ||
| virtual void Unpatch(); | ||
|
|
||
| private: | ||
| CGuiBltHook(); | ||
| static BOOL __stdcall OnBlt(DWORD id, LPVOID dstSurface, LPRECT dstRect, LPVOID srcSurface, LPRECT srcRect, DWORD ddbltFlags, LPVOID ddbltfx); | ||
| }; | ||
|
|
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