lints

kpatch.ini

@@ -1,7 +1,7 @@
 [System]
 debug = false
 
-; Too Many Indices 的上限数值（buffer 大小+ 判断）
+; Too Many Indices 的上限数值（buffer 大小 + 判断）
 [Indices]
 enable = true
 value = 131072
@@ -18,4 +18,3 @@ enable = false
 debug = true
 old_value = 32768
 new_value = 65536
-

src/dllmain.cpp

@@ -21,6 +21,8 @@
 
 #include "hooks_indices.h"
 #include "hooks_dvb.h"
+#include "hooks_indexbuffer.h"
+#include "hooks_vertexbuffer.h"
 
 
 void InitConsole() {
@@ -115,7 +117,7 @@ DWORD __stdcall Main(void*) {
     auto absPath = std::filesystem::absolute(relPath);
 
     std::wcout << absPath << std::endl;
-    spdlog::info(L"Loading Dll fromg {}", absPath.wstring());
+    spdlog::info(L"Loading Dll from {}", absPath.wstring());
 
     HMODULE hDll = LoadLibraryExW(absPath.c_str(), nullptr, LOAD_WITH_ALTERED_SEARCH_PATH);
 
@@ -138,6 +140,10 @@ DWORD __stdcall Main(void*) {
     ret += PatchIndices(hDll, dllName);
     ret += hooks_dvb(hDll, dllName);
 
+    // Experiments
+    // ret += hooks_indexbuffer(hDll, dllName);
+    // ret += VertexBuffer::hooks_vertexbuffer(hDll, dllName);
+
     if (ret != 0) {
         MessageBoxW(NULL, L"未能正常应用补丁，patch 未生效，请联系开发者\n这只是一个警告，可能不影响游戏运行", L"L4D2 Fix", MB_OK);
     } else {

src/hooks_indexbuffer.h

@@ -0,0 +1,83 @@
+#pragma once
+#define SPDLOG_WCHAR_TO_UTF8_SUPPORT
+#include <spdlog/spdlog.h>
+#include <spdlog/sinks/basic_file_sink.h>
+
+#include <windows.h>
+#include <iostream>
+#include <format>
+#include <string>
+
+#include <detours/detours.h>
+
+#include "inipp.h"
+
+#include "helper.hpp"
+#include "vars.h"
+
+// ---------------------------------------------------------------------------------
+
+using CIndexBufferCtorFn = void* (__thiscall*)(void*, void*, int, char, char);
+CIndexBufferCtorFn oCIndexBufferCtorFn = nullptr;
+
+void*__fastcall hCIndexBufferCtorFn(
+    void* This, DWORD EDX,
+    void* pD3Device,
+    int bufSize, char a6, char a7)
+{
+    if (cfg::IndexBuffer::debug) {
+        std::string msg = std::format("CIndexBuffer bufSize: {}", bufSize);
+        spdlog::info(msg);
+    }
+
+    MEMORYSTATUSEX statex;
+    statex.dwLength = sizeof(statex);
+    if (GlobalMemoryStatusEx(&statex)) {
+        spdlog::info("Total physical memory: {} MB", statex.ullTotalPhys / (1024 * 1024));
+        spdlog::info("Available physical memory: {} MB", statex.ullAvailPhys / (1024 * 1024));
+        spdlog::info("Total virtual memory: {} MB", statex.ullTotalVirtual / (1024 * 1024));
+        spdlog::info("Available virtual memory: {} MB", statex.ullAvailVirtual / (1024 * 1024));
+        spdlog::info("====================");
+    }
+
+
+    // count *= 2;
+    // if (count > 131072) count = 131072;
+    // if (count > 131072) count = 131072;
+    if (bufSize == 0x8000) bufSize = 0xF0000;
+    // if (bufSize > 0x20000) bufSize = 0x20000;
+
+    return oCIndexBufferCtorFn(This, pD3Device, bufSize, a6, a7);
+}
+
+int patchIndexBuffer(HMODULE hDll) {
+    const char* pat = "55 8B EC 8A 45 10 24 01 02 C0 56 8B F1 8A 4D 14 8A 56 14 02 C0 80 E1 01 0A C1 02 C0 57 8B 7D 0C";
+    std::uint8_t* ptr = Memory::PatternScan(hDll, pat, 0);
+    if (ptr == nullptr) {
+        spdlog::info(L"Can not find the CIndexBuffer::Ctor");
+        return -1;
+    }
+
+    spdlog::info(L"Hook the CIndexBuffer::Ctor @ 0x{:0x}", (intptr_t)ptr - (intptr_t)hDll);
+    oCIndexBufferCtorFn = reinterpret_cast<CIndexBufferCtorFn>(ptr);
+
+    DetourRestoreAfterWith();
+    DetourTransactionBegin();
+    DetourUpdateThread(GetCurrentThread());
+    DetourAttach(&(PVOID&)oCIndexBufferCtorFn, hCIndexBufferCtorFn);
+    DetourTransactionCommit();
+
+    return 0;
+}
+
+// ---------------------------------------------------------------------------------
+
+int hooks_indexbuffer(HMODULE hDll, std::wstring dllName) {
+    auto ret = 0;
+
+    if (cfg::IndexBuffer::enable) {
+        ret += patchIndexBuffer(hDll);
+    }
+
+    return ret;
+}

src/hooks_vertexbuffer.h

@@ -0,0 +1,74 @@
+#pragma once
+#define SPDLOG_WCHAR_TO_UTF8_SUPPORT
+#include <spdlog/spdlog.h>
+#include <spdlog/sinks/basic_file_sink.h>
+
+#include <windows.h>
+#include <iostream>
+#include <format>
+#include <string>
+
+#include <detours/detours.h>
+
+#include "inipp.h"
+
+#include "helper.hpp"
+#include "vars.h"
+
+// ---------------------------------------------------------------------------------
+
+namespace VertexBuffer {
+
+using CVertexBufferCtorFn = void* (__thiscall*)(void*, void*, int, int, int, int, int, char*, char, char);
+CVertexBufferCtorFn oCVertexBufferCtorFn = nullptr;
+
+void*__fastcall hCVertexBufferCtorFn(
+    void* This, DWORD EDX,
+    void* pD3Device, int a3, int a4, int a5,
+    int count, int bufSize,
+    char * source, char a6, char a7)
+{
+    if (cfg::VertexBuffer::debug) {
+        std::string msg = std::format("CVertexBuffer count: {}, bufSize: {}", count, bufSize);
+        spdlog::info(msg);
+    }
+
+    if (bufSize == 0x8000) bufSize = 0xF0000;
+    // if (bufSize > 0x20000) bufSize = 0x20000;
+
+    return oCVertexBufferCtorFn(This, pD3Device, a3, a4, a5, count, bufSize, source, a6, a7);
+}
+
+int patchVertexBuffer(HMODULE hDll) {
+    const char* pat = "55 8B EC 81 EC 08 01 00 00 A1 ?? ?? ?? ?? 33 C5 89 45 FC 53 56 57 8B 45 08";
+    std::uint8_t* ptr = Memory::PatternScan(hDll, pat, 0);
+    if (ptr == nullptr) {
+        spdlog::info(L"Can not find the CVertexBuffer::Ctor");
+        return -1;
+    }
+
+    spdlog::info(L"Hook the CVertexBuffer::Ctor @ 0x{:0x}", (intptr_t)ptr - (intptr_t)hDll);
+    oCVertexBufferCtorFn = reinterpret_cast<CVertexBufferCtorFn>(ptr);
+
+    DetourRestoreAfterWith();
+    DetourTransactionBegin();
+    DetourUpdateThread(GetCurrentThread());
+    DetourAttach(&(PVOID&)oCVertexBufferCtorFn, hCVertexBufferCtorFn);
+    DetourTransactionCommit();
+
+    return 0;
+}
+
+// ---------------------------------------------------------------------------------
+
+int hooks_vertexbuffer(HMODULE hDll, std::wstring dllName) {
+    auto ret = 0;
+
+    if (cfg::VertexBuffer::enable) {
+        ret += patchVertexBuffer(hDll);
+    }
+
+    return ret;
+}
+
+}

src/vars.h

@@ -15,7 +15,7 @@ HMODULE thisModule; // Fix DLL
 
 // Version
 std::string sFixName = "L4D2Fix";
-std::string sFixVer = "1.3.0";
+std::string sFixVer = "1.4.0-debug";
 std::string sLogFile = sFixName + ".log";
 
 // Logger
@@ -39,6 +39,18 @@ namespace Indices {
     int value;
 }
 
+namespace IndexBuffer {
+    bool enable;
+    bool debug;
+    int value;
+}
+
+namespace VertexBuffer {
+    bool enable;
+    bool debug;
+    int value;
+}
+
 namespace DynamicVB {
     bool enable;
     bool debug;
@@ -71,6 +83,20 @@ void LoadIni() {
         inipp::extract(ini.sections["Indices"]["value"], value);
     }
 
+    // {
+    //     using namespace IndexBuffer;
+    //     inipp::extract(ini.sections["IndexBuffer"]["enable"], enable);
+    //     inipp::extract(ini.sections["IndexBuffer"]["debug"], debug);
+    //     inipp::extract(ini.sections["IndexBuffer"]["value"], value);
+    // }
+
+    // {
+    //     using namespace VertexBuffer;
+    //     inipp::extract(ini.sections["VertexBuffer"]["enable"], enable);
+    //     inipp::extract(ini.sections["VertexBuffer"]["debug"], debug);
+    //     inipp::extract(ini.sections["VertexBuffer"]["value"], value);
+    // }
+
     {
         using namespace DynamicVB;
         inipp::extract(ini.sections["DynamicVB"]["enable"], enable);

xmake-requires.lock

@@ -0,0 +1,29 @@
+{
+    __meta__ = {
+        version = "1.0"
+    },
+    ["windows|x64"] = {
+        ["minhook#31fecfc4"] = {
+            repo = {
+                branch = "master",
+                commit = "497ce0d3bcc07368698f1f7ec828b4cf991dbe14",
+                url = "https://github.com/xmake-io/xmake-repo.git"
+            },
+            version = "v1.3.3"
+        },
+        ["spdlog#31fecfc4"] = {
+            repo = {
+                branch = "master",
+                commit = "497ce0d3bcc07368698f1f7ec828b4cf991dbe14",
+                url = "https://github.com/xmake-io/xmake-repo.git"
+            },
+            version = "v1.15.2"
+        },
+        ["vcpkg::detours#31fecfc4"] = {
+            version = "latest"
+        },
+        ["vcpkg::inipp#31fecfc4"] = {
+            version = "latest"
+        }
+    }
+}

xmake.lua

@@ -1,6 +1,7 @@
 -- add_requires("microsoft-proxy 2.4.0")
 add_rules("plugin.compile_commands.autoupdate")
 add_rules("mode.debug", "mode.release")
+set_policy("package.requires_lock", true)
 
 set_languages("cxx20", "c++20")