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r5sdk/r5dev/common/opcodes.cpp
IcePixelx 212eeb87af Squashed commit of the following: 
commit 477152b35443246dace6f5b4deccd52ea1cc6e9c
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Fri Dec 31 03:45:48 2021 +0100

    Fix compiler error

commit 5f664d8e6ba9a2e0bd72c29c5f4ba5279e29e75a
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Fri Dec 31 03:41:33 2021 +0100

    Create signatures for all used Dedicated functions

commit 2c7ced128d8c48a5abf8fd64dbb06909dc632f35
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Thu Dec 30 22:13:15 2021 +0100

    Heavy dedicated cleanup

    * Since the material mode is set to '2', all of the render loops and shader loading functions are no longer called. These have all been removed.
    * Added description for patches that missed them
    * Traced root caller/cause for certain patches to skip even more unnecessary code and save more memory.

commit 22c0b5c867664a2524c18d865dbc54ff067dda22
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Thu Dec 30 17:20:41 2021 +0100

    Dedicated server improvements

commit 6d4f7e345f38872ce45751604b40871b969cec8f
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Thu Dec 30 02:47:42 2021 +0100

    Fix a typo

commit 39a8a8fd30612522a274e1474c9a66e5019aeea3
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Thu Dec 30 02:36:43 2021 +0100

    Implement patch to enable 'DrawAllOverlays()'.

commit 83129e88f8a6033f8f4c13e3cac639097068cb3c
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Wed Dec 29 22:59:34 2021 +0100

    Fix LLVM compiler error

commit c48ed7f7a53a9985e3c2642db3639007d7c9129a
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Wed Dec 29 18:06:37 2021 +0100

    Rename dedicated variables

commit d1ba2bd56720a0776824a8e309d7d859704244bc
Author: IcePixelx <41352111+PixieCore@users.noreply.github.com>
Date:   Wed Dec 29 15:35:48 2021 +0100

    Fixed changelevel, needs more research tho.

commit 46950125716c05171f25a12d8805811112e90551
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Wed Dec 29 13:58:03 2021 +0100

    Fix 'C_PropDoor' not spawning properly on the server

commit 6a9a00735a9d4b8c415acc248c83e6e8d6dc2ff1
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Wed Dec 29 13:57:16 2021 +0100

    Rename hooked command callbacks

commit b514f928a69a9c4ac1d3d1e5c662f93a1f0d131d
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Wed Dec 29 02:16:21 2021 +0100

    Use a separate executable for dedicated server

    The dedicated server still has directx dll imports which will cause issues with ReShade or 3DMigoto, or trying to load it on a headless machine with no directx installed. The imports have to be cleared to avoid issues. The most convenient approach is to do this with a separate exe rather then patching it in runtime.

commit bc8f9400d3911e360757059700a31510e329546d
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Wed Dec 29 00:18:56 2021 +0100

    Fix collisions for headless dedicated server

commit 0e36aa647ffb15ca4f8c76b0431f7c3a83741d80
Author: Amos <48657826+Mauler125@users.noreply.github.com>
Date:   Tue Dec 28 20:19:17 2021 +0100

    Dedicated without ShaderApi and DirectX pre-alpha

    The instruction at 'CalcPropStaticFrustumCull' [0x14028F3B0 + 0x5C7] moves RSP + 0x70 into the R13 register.
    RSP + 0x70 seems to contain a pointer to collission data for that particular prop model.
    When running NoShaderApi() and passing the dedicated server the '-noshaderapi' command line parameter, RSP + 0x70 will be a nullptr.
    This has to be fixed to have prop static collissions on the server.
2022-01-03 14:59:32 +01:00

220 lines
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/*-----------------------------------------------------------------------------
* _opcodes.cpp
*-----------------------------------------------------------------------------*/
#include "core/stdafx.h"
#include "tier0/basetypes.h"
#include "common/opcodes.h"
#include "engine/host_cmd.h"
#include "bsplib/bsplib.h"
#include "ebisusdk/EbisuSDK.h"
#ifdef DEDICATED
void Dedicated_Init()
{
*(uintptr_t*)0x14D415040 = 0x1417304E8; // CEngineClient::CEngineClient().
//*(uintptr_t*)0x14B37C3C0 = 0x141F10CA0; // CHLClient::CHLClient().
*(uintptr_t*)0x14B3800D7 = 0x1; // bool bDedicated = true.
//-------------------------------------------------------------------------
// CGAME
//-------------------------------------------------------------------------
CVideoMode_Common__CreateGameWindow.Offset(0x2C).Patch({ 0xE9, 0x9A, 0x00, 0x00, 0x00 }); // PUS --> XOR | Prevent ShowWindow and CreateGameWindow from being initialized (STGS RPak datatype is registered here).
//-------------------------------------------------------------------------
// CHLClIENT
//-------------------------------------------------------------------------
gCHLClient__1000.Patch({ 0xC3 }); // FUN --> RET | Return early in unknown 'CHLClient' function to prevent infinite loop.
//-------------------------------------------------------------------------
// CSOURCEAPPSYSTEMGROUP
//-------------------------------------------------------------------------
gCSourceAppSystemGroup__Create.Offset(0x248).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | inputSystem->Connect().
gCSourceAppSystemGroup__Create.Offset(0x267).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | materials->Connect().
//gCSourceAppSystemGroup__Create.Offset(0x286).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | mdlCache->Connect().
gCSourceAppSystemGroup__Create.Offset(0x2A5).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | studioRender->Connect().
gCSourceAppSystemGroup__Create.Offset(0x2C4).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | avi->Connect().
gCSourceAppSystemGroup__Create.Offset(0x2E3).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | engineAPI->Connect().
//gCSourceAppSystemGroup__Create.Offset(0x302).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | dataCache->Connect().
gCSourceAppSystemGroup__Create.Offset(0x321).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | matSystemSurface->Connect().
gCSourceAppSystemGroup__Create.Offset(0x340).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | vgui->Connect().
gCSourceAppSystemGroup__Create.Offset(0x35D).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | inputSystem->Init().
gCSourceAppSystemGroup__Create.Offset(0x384).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | studioRender->Init().
gCSourceAppSystemGroup__Create.Offset(0x39E).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | bik->Init().
gCSourceAppSystemGroup__Create.Offset(0x3AB).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | engineAPI->Init().
gCSourceAppSystemGroup__Create.Offset(0x3F6).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | vgui->Init().
gCSourceAppSystemGroup__Create.Offset(0x3E9).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | matEmbeddedPanel->Init().
gCSourceAppSystemGroup__Create.Offset(0x3F9).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | EAC_ClientInterface_Init().
//-------------------------------------------------------------------------
// CMATERIALSYSTEM
//-------------------------------------------------------------------------
//gCMaterialSystem__MatsysMode_Init.Offset(0x22).Patch({ 0xEB, 0x66 }); // JE --> JMP | Matsys mode init (CMaterialSystem). // TODO: Needed?
CMaterialSystem__Init.Offset(0x406).Patch({ 0xE9, 0x55, 0x05, 0x00, 0x00 }); // MOV --> JMP | Jump over material KeyValue definitions and 'CMatRenderContextBase::sm_RenderData([x])'.
InitMaterialSystem.Offset(0x7D).Patch({ 0xC3 }); // JMP --> RET | Return early to prevent 'InitDebugMaterials' from being executed. // RESEARCH NEEDED.
//-------------------------------------------------------------------------
// CSHADERSYSTEM
//-------------------------------------------------------------------------
CShaderSystem__Init.Patch({ 0xC3 }); // FUN --> RET | Return early in 'CShaderSystem::Init' to prevent initialization.
//-------------------------------------------------------------------------
// CSTUDIORENDERCONTEXT
//-------------------------------------------------------------------------
// Note: The registers here seems to contains pointers to material data and 'CMaterial' class methods when the shader system is initialized.
CStudioRenderContext__LoadModel.Offset(0x17D).Patch({ 0x90, 0x90, 0x90, 0x90 }); // MOV --> NOP | RAX + RCX are both nullptrs.
CStudioRenderContext__LoadModel.Offset(0x181).Patch({ 0x90, 0x90, 0x90 }); // MOV --> NOP | RCX is nullptr when trying to dereference.
CStudioRenderContext__LoadModel.Offset(0x184).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | RAX is nullptr during virtual call resulting in exception 'C0000005'.
CStudioRenderContext__LoadMaterials.Offset(0x28).Patch({ 0xE9, 0x80, 0x04, 0x00, 0x00 }); // FUN --> RET | 'CStudioRenderContext::LoadMaterials' is called virtually by the 'RMDL' streaming job.
//-------------------------------------------------------------------------
// CMODELLOADER
//-------------------------------------------------------------------------
CModelLoader__LoadModel.Offset(0x462).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Prevent call to 'CStudioRenderContext::LoadMaterials'.
CModelLoader__Studio_LoadModel.Offset(0x325).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Virtual call to 'CMaterialSystem::FindMaterialEx' fails as RAX is nullptr.
CModelLoader__Studio_LoadModel.Offset(0x33D).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Virtual call to 'CMaterialGlue' class method fails as RAX is nullptr.
CModelLoader__Studio_LoadModel.Offset(0x359).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Virtual call to 'CMaterialGlue' class method fails as RAX is nullptr.
CModelLoader__Studio_LoadModel.Offset(0x374).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Virtual call to 'CMaterialGlue' class method fails as RAX is nullptr.
CModelLoader__Studio_LoadModel.Offset(0x38D).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Virtual call to 'ReturnZero' fails as RAX is nullptr.
CModelLoader__Studio_LoadModel.Offset(0x3A4).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Virtual call to 'CMaterialGlue' class method fails as RAX is nullptr.
//-------------------------------------------------------------------------
// CGAMESERVER
//-------------------------------------------------------------------------
CGameServer__SpawnServer.Offset(0x43).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Prevent call to unknown material/shader code.
CGameServer__SpawnServer.Offset(0x48).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // TODO: Research 'CIVDebugOverlay'.
//-------------------------------------------------------------------------
// MM_HEARTBEAT
//-------------------------------------------------------------------------
MM_Heartbeat__ToString.Offset(0xF).Patch({ 0xE9, 0x22, 0x01, 0x00, 0x00 }); // JS --> JMP | Skip ListenServer HeartBeat.
//-------------------------------------------------------------------------
// RUNTIME: SYS_INITGAME
//-------------------------------------------------------------------------
Sys_InitGame.Offset(0x70).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // STZNZ --> NOP | Prevent 'bDedicated' from being set to false.
//-------------------------------------------------------------------------
// RUNTIME: HOST_INIT
//-------------------------------------------------------------------------
gHost_Init_0.Offset(0xC2).Patch({ 0xEB, 0x34 }); // CAL --> NOP | Disable 'vpk/client_common.bsp' loading.
gHost_Init_0.Offset(0x182).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> JMP | Disable UI material asset initialization.
gHost_Init_0.Offset(0x859).Patch({ 0xE9, 0x19, 0x04, 0x00, 0x00 }); // LEA --> RET | Disable 'client.dll' library initialization.
gHost_Init_0.Offset(0xC77).Patch({ 0xE8, 0x44, 0xCF, 0xFF, 0xFF }); // CAL --> CAL | Disable user config loading and call entitlements.rson initialization instead.
gHost_Init_1.Offset(0x609).Patch({ 0xEB, 0x2B }); // JE --> JMP | Skip client.dll Init_PostVideo() validation code.
gHost_Init_1.Offset(0x621).Patch({ 0xEB, 0x0C }); // JNE --> JMP | Skip client.dll Init_PostVideo() validation code.
gHost_Init_1.Offset(0x658).Patch({ 0xE9, 0x8C, 0x00, 0x00, 0x00 }); // JE --> JMP | Skip NULL call as client is never initialized.
gHost_Init_1.Offset(0x6E9).Patch({ 0xE9, 0xB0, 0x00, 0x00, 0x00 }); // JNE --> JMP | Skip shader preloading as cvar can't be checked due to client being NULL.
gHost_Init_2.Offset(0x26F).Patch({ 0xE9, 0x4D, 0x05, 0x00, 0x00 }); // JNE --> JMP | client.dll systems initialization.
//-------------------------------------------------------------------------
// RUNTIME: HOST_NEWGAME
//-------------------------------------------------------------------------
Host_NewGame.Offset(0x4E0).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 });
Host_NewGame.Offset(0x637).Patch({ 0xE9, 0xC1, 0x00, 0x00, 0x00 }); // JNE --> JMP | Prevent connect localhost from being executed in Host_NewGame.
//-------------------------------------------------------------------------
// RUNTIME: _HOST_RUNFRAME
//-------------------------------------------------------------------------
_Host_RunFrame.Offset(0xFB0).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | NOP call to unused VGUI code to prevent crash at SIGNONSTATE_PRESPAWN.
_Host_RunFrame.Offset(0x1023).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | NOP NULL call as client is never initialized.
//-------------------------------------------------------------------------
// RUNTIME: EBISUSDK
//-------------------------------------------------------------------------
p_EbisuSDK_Init_Tier0.Offset(0x0B).Patch({ 0xE9, 0x63, 0x02, 0x00, 0x00, 0x00 }); // JNZ --> JMP | Prevent EbisuSDK from initializing on the engine and server.
p_EbisuSDK_SetState.Offset(0x0E).Patch({ 0xE9, 0xCB, 0x03, 0x00, 0x00 }); // JNZ --> JMP | Prevent EbisuSDK from initializing on the engine and server.
//-------------------------------------------------------------------------
// RUNTIME: FAIRFIGHT
//-------------------------------------------------------------------------
FairFight_Init.Offset(0x61).Patch({ 0xE9, 0xED, 0x00, 0x00, 0x00, 0x00 });
//-------------------------------------------------------------------------
// RUNTIME: BSP_LUMP
//-------------------------------------------------------------------------
CollisionBSPData_LoadAllLumps.Offset(0x41).Patch({ 0xE9, 0x4F, 0x04, 0x00, 0x00 }); // JNE --> NOP | SKYLIGHTS.
CollisionBSPData_LoadAllLumps.Offset(0x974).Patch({ 0x90, 0x90 }); // JE --> NOP | VERTNORMALS.
CollisionBSPData_LoadAllLumps.Offset(0xA55).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | MATERIALSORTS.
CollisionBSPData_LoadAllLumps.Offset(0xA62).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | MESHBOUNDS.
CollisionBSPData_LoadAllLumps.Offset(0xA83).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | MESHVERTS.
CollisionBSPData_LoadAllLumps.Offset(0xAC0).Patch({ 0x90, 0x90 }); // JE --> NOP | INDICES.
CollisionBSPData_LoadAllLumps.Offset(0xBF2).Patch({ 0x90, 0x90 }); // JE --> NOP | WORLDLIGHTS.
CollisionBSPData_LoadAllLumps.Offset(0xDA9).Patch({ 0x90, 0x90 }); // JE --> NOP | TWEAKLIGHTS.
CollisionBSPData_LoadAllLumps.Offset(0xEEB).Patch({ 0xE9, 0x3D, 0x01, 0x00, 0x00 }); // JLE --> JMP | Exception 0x57 in while trying to dereference [R15 + R14 *8 + 0x10].
CollisionBSPData_LoadAllLumps.Offset(0x61B).Patch({ 0xE9, 0xE2, 0x02, 0x00, 0x00 }); // JZ --> JMP | Prevent call to 'CMod_LoadTextures()'.
CollisionBSPData_LoadAllLumps.Offset(0x1045).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | Prevent call to 'Mod_LoadCubemapSamples()'.
CollisionBSPData_LinkPhysics.Offset(0x129).Patch({ 0x90, 0x90, 0x90 }); // MOV --> NOP | RCX is nullptr during dereference since shadersystem isn't initialized. Exception 'C0000005'.
CollisionBSPData_LinkPhysics.Offset(0x12C).Patch({ 0x90, 0x90, 0x90 }); // CAL --> NOP | Virtual call to 'CTexture' class member in RAX + 0x78 fails. Previous instruction could not dereference.
//-------------------------------------------------------------------------
// RUNTIME: PROP_STATIC
//-------------------------------------------------------------------------
// Note: At [14028F3B0 + 0x5C7] RSP seems to contain a block of pointers to data for the static prop rmdl in question. [RSP + 0x70] is a pointer to (what seems to be) shader/material data. The pointer will be NULL without a shader system.
p_CalcPropStaticFrustumCulling.Offset(0x5E0).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 }); // MOV --> NOP | RSP + 0x70 is a nullptr which gets moved to R13, R13 gets used here resulting in exception 'C0000005'.
p_CalcPropStaticFrustumCulling.Offset(0x5EB).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // CAL --> NOP | RAX is nullptr during virtual call resulting in exception 'C0000005'.
//-------------------------------------------------------------------------
// RUNTIME: GL_SCREEN
//-------------------------------------------------------------------------
SCR_BeginLoadingPlaque.Offset(0x82).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // JNE --> JMP | virtual call to 'CHLClient::CHudMessage'.
SCR_BeginLoadingPlaque.Offset(0xA4).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 }); // JNE --> JMP | virtual call to 'CEngineVGui::OnLevelLoadingStarted'.
SCR_BeginLoadingPlaque.Offset(0x1D6).Patch({ 0xEB, 0x27 }); // JNE --> JMP | Prevent connect command from crashing by invalid call to UI function.
}
#endif // DEDICATED
void RuntimePtc_Init() /* .TEXT */
{
SCR_BeginLoadingPlaque.Offset(0x1D6).Patch({ 0xEB, 0x27 }); // JNE --> JMP | Prevent connect command from crashing by invalid call to UI function.
//-------------------------------------------------------------------------
// JNE --> JMP | Allow games to be loaded without the optional texture streaming file
//WriteProcessMemory(GameProcess, LPVOID(dst002 + 0x8E5), "\xEB\x19", 2, NULL);
//-------------------------------------------------------------------------
//-------------------------------------------------------------------------
// JA --> JMP | Prevent FairFight anti-cheat from initializing on the server.
FairFight_Init.Offset(0x61).Patch({ 0xE9, 0xED, 0x00, 0x00, 0x00, 0x00 });
}
void RuntimePtc_Toggle() /* .TEXT */
{
static bool g_nop = true;
if (g_nop)
{
//-------------------------------------------------------------------------
// CALL --> NOP | Allow some maps to be loaded by nopping out a call in LoadProp function
dst007.Offset(0x5E8).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 });
//-------------------------------------------------------------------------
// CALL --> NOP | Disable the viewmodel rendered to avoid a crash from a certain entity in desertlands_mu1
dst008.Offset(0x67).Patch({ 0x90, 0x90, 0x90, 0x90, 0x90 });
printf("\n");
printf("+--------------------------------------------------------+\n");
printf("|>>>>>>>>>>>>>>| TEXT OPCODES OVERWRITTEN |<<<<<<<<<<<<<<|\n");
printf("+--------------------------------------------------------+\n");
printf("\n");
}
else
{
//-------------------------------------------------------------------------
// NOP --> CALL | Recover function DST007
dst007.Offset(0x5E8).Patch({ 0x48, 0x8B, 0x03, 0xFF, 0x90, 0xB0, 0x02, 0x00, 0x00, 0x84, 0xC0 });
//-------------------------------------------------------------------------
// NOP --> CALL | Recover function DST008
dst008.Offset(0x67).Patch({ 0xE8, 0x54, 0xD8, 0xFF, 0xFF });
printf("\n");
printf("+--------------------------------------------------------+\n");
printf("|>>>>>>>>>>>>>>>| TEXT OPCODES RECOVERED |<<<<<<<<<<<<<<<|\n");
printf("+--------------------------------------------------------+\n");
printf("\n");
}
g_nop = !g_nop;
}
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