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Merge pull request #1 from jensewe/updaterate_patch
Patch `SetUpdateRate` to allow tickrate > 100
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| /** | ||
| * vim: set ts=4 : | ||
| * ============================================================================= | ||
| * MaxRate Patches | ||
| * Copyright (C) 2012 Michael "ProdigySim" Busby | ||
| * ============================================================================= | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify it under | ||
| * the terms of the GNU General Public License, version 3.0, as published by the | ||
| * Free Software Foundation. | ||
| * | ||
| * This program 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 | ||
| * this program. If not, see <http://www.gnu.org/licenses/>. | ||
| * | ||
| * As a special exception, the author(s) give you permission to link the | ||
| * code of this program (as well as its derivative works) to "Half-Life 2," the | ||
| * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software | ||
| * by the Valve Corporation. You must obey the GNU General Public License in | ||
| * all respects for all other code used. Additionally, the author(s) grant | ||
| * this exception to all derivative works. The author(s) define further | ||
| * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007), | ||
| * or <http://www.sourcemod.net/license.php>. | ||
| * | ||
| * Version: $Id$ | ||
| */ | ||
|
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| #include "updaterate_patches.h" | ||
| #include "memutils.h" | ||
| #include "patchexceptions.h" | ||
| #include "basicbinpatch.h" | ||
| #include "sigs.h" | ||
|
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| CGameClientUpdateRatePatch::CGameClientUpdateRatePatch(BYTE * engine) : m_patch(NULL) | ||
| { | ||
| m_patch = GeneratePatch(FindCGameClientSetUpdateRate(engine)); | ||
| } | ||
|
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| CGameClientUpdateRatePatch::~CGameClientUpdateRatePatch() | ||
| { | ||
| if(m_patch != NULL) delete m_patch; | ||
| } | ||
|
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| void CGameClientUpdateRatePatch::Patch() | ||
| { | ||
| m_patch->Patch(); | ||
| } | ||
|
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| void CGameClientUpdateRatePatch::Unpatch() | ||
| { | ||
| m_patch->Unpatch(); | ||
| } | ||
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| BYTE * CGameClientUpdateRatePatch::FindCGameClientSetUpdateRate(BYTE * engine) | ||
| { | ||
| #if defined (_LINUX) | ||
| return (BYTE *)g_MemUtils.SimpleResolve(engine, SIG_CGAMECLIENT_SETUPDATERATE); | ||
| #elif defined (_WIN32) | ||
| return (BYTE*)g_MemUtils.FindLibPattern(engine, SIG_CGAMECLIENT_SETUPDATERATE, SIG_CGAMECLIENT_SETUPDATERATE_LEN); | ||
| #endif | ||
| } | ||
|
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| ICodePatch * CGameClientUpdateRatePatch::GeneratePatch(BYTE * pCGameClientUpdateRate) | ||
| { | ||
| if(!pCGameClientUpdateRate) | ||
| { | ||
| throw PatchException("Unable to find CGameClient::SetUpdateRate!"); | ||
| } | ||
| if(pCGameClientUpdateRate[CGAMECLIENT_SETUPDATERATE_PATCH_OFFSET] != CGAMECLIENT_SETUPDATERATE_PATCH_CHECK_BYTE) | ||
| { | ||
| throw PatchException("CGameClient::SetUpdateRate patch offset incorrect!"); | ||
| } | ||
| #if defined _WIN32 | ||
| const BYTE replacement[] = {JMP_8_OPCODE}; | ||
| return new BasicStaticBinPatch<sizeof(replacement)>(pCGameClientUpdateRate+CGAMECLIENT_SETUPDATERATE_PATCH_OFFSET, replacement); | ||
| #elif defined _LINUX | ||
| return new BasicStaticBinPatch<sizeof(NOP_2)>(pCGameClientUpdateRate+CGAMECLIENT_SETUPDATERATE_PATCH_OFFSET, NOP_2); | ||
| #endif | ||
| } | ||
|
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| CBaseClientUpdateRatePatch::CBaseClientUpdateRatePatch(BYTE * engine) : m_patch(NULL) | ||
| { | ||
| m_patch = GeneratePatch(FindCBaseClientSetUpdateRate(engine)); | ||
| } | ||
|
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| CBaseClientUpdateRatePatch::~CBaseClientUpdateRatePatch() | ||
| { | ||
| if(m_patch != NULL) delete m_patch; | ||
| } | ||
|
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| void CBaseClientUpdateRatePatch::Patch() | ||
| { | ||
| m_patch->Patch(); | ||
| } | ||
|
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| void CBaseClientUpdateRatePatch::Unpatch() | ||
| { | ||
| m_patch->Unpatch(); | ||
| } | ||
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| BYTE * CBaseClientUpdateRatePatch::FindCBaseClientSetUpdateRate(BYTE * engine) | ||
| { | ||
| #if defined (_LINUX) | ||
| return (BYTE *)g_MemUtils.SimpleResolve(engine, SIG_CBASECLIENT_SETUPDATERATE); | ||
| #elif defined (_WIN32) | ||
| return (BYTE*)g_MemUtils.FindLibPattern(engine, SIG_CBASECLIENT_SETUPDATERATE, SIG_CBASECLIENT_SETUPDATERATE_LEN); | ||
| #endif | ||
| } | ||
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| ICodePatch * CBaseClientUpdateRatePatch::GeneratePatch(BYTE * pCBaseClientUpdateRate) | ||
| { | ||
| if(!pCBaseClientUpdateRate) | ||
| { | ||
| throw PatchException("Unable to find CBaseClient::SetUpdateRate!"); | ||
| } | ||
| if(pCBaseClientUpdateRate[CBASECLIENT_SETUPDATERATE_PATCH_OFFSET] != CBASECLIENT_SETUPDATERATE_PATCH_CHECK_BYTE) | ||
| { | ||
| throw PatchException("CBaseClient::SetUpdateRate patch offset incorrect!"); | ||
| } | ||
| #if defined _WIN32 | ||
| const BYTE replacement[] = {JMP_8_OPCODE}; | ||
| return new BasicStaticBinPatch<sizeof(replacement)>(pCBaseClientUpdateRate+CBASECLIENT_SETUPDATERATE_PATCH_OFFSET, replacement); | ||
| #elif defined _LINUX | ||
| const BYTE replacement[] = {0x89, 0xC2, NOP_1[0]}; | ||
| return new BasicStaticBinPatch<sizeof(replacement)>(pCBaseClientUpdateRate+CBASECLIENT_SETUPDATERATE_PATCH_OFFSET-1, replacement); | ||
| #endif | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| /** | ||
| * vim: set ts=4 : | ||
| * ============================================================================= | ||
| * MaxRate Patches | ||
| * Copyright (C) 2012 Michael "ProdigySim" Busby | ||
| * ============================================================================= | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify it under | ||
| * the terms of the GNU General Public License, version 3.0, as published by the | ||
| * Free Software Foundation. | ||
| * | ||
| * This program 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 | ||
| * this program. If not, see <http://www.gnu.org/licenses/>. | ||
| * | ||
| * As a special exception, the author(s) give you permission to link the | ||
| * code of this program (as well as its derivative works) to "Half-Life 2," the | ||
| * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software | ||
| * by the Valve Corporation. You must obey the GNU General Public License in | ||
| * all respects for all other code used. Additionally, the author(s) grant | ||
| * this exception to all derivative works. The author(s) define further | ||
| * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007), | ||
| * or <http://www.sourcemod.net/license.php>. | ||
| * | ||
| * Version: $Id$ | ||
| */ | ||
| #ifndef __UPDATERATE_PATCHES_H__ | ||
| #define __UPDATERATE_PATCHES_H__ | ||
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| #include "codepatch/icodepatch.h" | ||
| #include "misc_asm.h" | ||
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| class CGameClientUpdateRatePatch : public ICodePatch | ||
| { | ||
| public: | ||
| CGameClientUpdateRatePatch(BYTE * engine); | ||
| ~CGameClientUpdateRatePatch(); | ||
| void Patch(); | ||
| void Unpatch(); | ||
| private: | ||
| BYTE * FindCGameClientSetUpdateRate(BYTE * engine); | ||
| ICodePatch * GeneratePatch(BYTE * pCGameClientUpdateRate); | ||
| ICodePatch * m_patch; | ||
| }; | ||
|
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| class CBaseClientUpdateRatePatch : public ICodePatch | ||
| { | ||
| public: | ||
| CBaseClientUpdateRatePatch(BYTE * engine); | ||
| ~CBaseClientUpdateRatePatch(); | ||
| void Patch(); | ||
| void Unpatch(); | ||
| private: | ||
| BYTE * FindCBaseClientSetUpdateRate(BYTE * engine); | ||
| ICodePatch * GeneratePatch(BYTE * pCBaseClientUpdateRate); | ||
| ICodePatch * m_patch; | ||
| }; | ||
|
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| #endif |