add empty hook implementations

include/hooks.hpp

@@ -37,7 +37,7 @@ public:
     ~VMTHook();
     void Set(ptr_t inst, uint32_t offset = 0);
     void Release();
-    void HookMethod(ptr_t func, uint32_t idx);
+    void HookMethod(ptr_t func, uint32_t idx, ptr_t *backup);
     void *GetMethod(uint32_t idx) const;
     void Apply();
 

include/hooks/HookedMethods.hpp

@@ -14,93 +14,55 @@ union SDL_Event;
 struct SDL_Window;
 #endif
 
+#define DECLARE_HOOKED_METHOD(name, rtype, ...) \
+    namespace types { using name = rtype(*)(__VA_ARGS__); } \
+    namespace methods { rtype name(__VA_ARGS__); } \
+    namespace original { extern types::name name; }
+
+#define DEFINE_HOOKED_METHOD(name, rtype, ...) \
+    types::name original::name{ nullptr }; \
+    rtype name(__VA_ARGS__)
+
 namespace hooked_methods
 {
-
-namespace types
-{
 // ClientMode
-using CreateMove = bool(*)(void *, float, CUserCmd *);
-using LevelInit = void(*)(void *, const char *);
-using LevelShutdown = void(*)(void *);
+DECLARE_HOOKED_METHOD(CreateMove, bool, void *, float, CUserCmd *);
+DECLARE_HOOKED_METHOD(LevelInit, void, void *, const char *);
+DECLARE_HOOKED_METHOD(LevelShutdown, void, void *);
 // ClientMode + 4
-using FireGameEvent = void(*)(void *_this, IGameEvent *event);
+DECLARE_HOOKED_METHOD(FireGameEvent, void, void *, IGameEvent *);
 // IBaseClient
-using DispatchUserMessage = bool(*)(void *, int, bf_read &);
-using IN_KeyEvent = int(*)(void *, int, int, const char *);
+DECLARE_HOOKED_METHOD(DispatchUserMessage, bool, void *, int, bf_read &);
+DECLARE_HOOKED_METHOD(IN_KeyEvent, int, void *, int, ButtonCode_t, const char *);
 // IInput
-using GetUserCmd = CUserCmd *(*)(IInput *, int);
+DECLARE_HOOKED_METHOD(GetUserCmd, CUserCmd *, IInput *, int);
 // INetChannel
-using SendNetMsg = bool(*)(INetChannel *, INetMessage &, bool, bool);
-using CanPacket = bool(*)(INetChannel *);
-using Shutdown = void(*)(INetChannel *, const char *);
+DECLARE_HOOKED_METHOD(SendNetMsg, bool, INetChannel *, INetMessage &, bool, bool);
+DECLARE_HOOKED_METHOD(CanPacket, bool, INetChannel *);
+DECLARE_HOOKED_METHOD(Shutdown, void, INetChannel *, const char *);
 // ISteamFriends
-using GetFriendPersonaName = const char *(*)(ISteamFriends *, CSteamID);
+DECLARE_HOOKED_METHOD(GetFriendPersonaName, const char *, ISteamFriends *, CSteamID);
 // IEngineVGui
-using Paint = void(*)(IEngineVGui *, PaintMode_t);
+DECLARE_HOOKED_METHOD(Paint, void, IEngineVGui *, PaintMode_t);
 
 #if ENABLE_VISUALS
 // ClientMode
-using OverrideView = void(*)(void *, CViewSetup *);
+DECLARE_HOOKED_METHOD(OverrideView, void, void *, CViewSetup *);
 // IVModelRender
-using DrawModelExecute = void(*)(IVModelRender *, const DrawModelState_t &,
-                                 const ModelRenderInfo_t &, matrix3x4_t *);
+DECLARE_HOOKED_METHOD(DrawModelExecute, void, IVModelRender *, const DrawModelState_t &,
+const ModelRenderInfo_t &, matrix3x4_t *);
 // IStudioRender
-using BeginFrame = void(*)(IStudioRender *);
+DECLARE_HOOKED_METHOD(BeginFrame, void, IStudioRender *);
 // IBaseClient
-using FrameStageNotify = void(*)(void *, int);
+DECLARE_HOOKED_METHOD(FrameStageNotify, void, void *, ClientFrameStage_t);
 // vgui::IPanel
-using PaintTraverse = void(*)(vgui::IPanel *, unsigned int, bool, bool);
+DECLARE_HOOKED_METHOD(PaintTraverse, void, vgui::IPanel *, unsigned int, bool, bool);
 // SDL
-using SDL_GL_SwapWindow = void(*)(SDL_Window *window);
-using SDL_PollEvent = int(*)(SDL_Event *event);
+DECLARE_HOOKED_METHOD(SDL_GL_SwapWindow, void, SDL_Window *);
+DECLARE_HOOKED_METHOD(SDL_PollEvent, int, SDL_Event *);
 // IUniformRandomStream
-using RandomInt = int(*)(void *, int, int);
+DECLARE_HOOKED_METHOD(RandomInt, int, IUniformRandomStream *, int, int);
 #endif
-}
-
-namespace methods
-{
-// ClientMode
-bool CreateMove(void *, float, CUserCmd *);
-void LevelInit(void *, const char *);
-void LevelShutdown(void *);
-// ClientMode + 4
-void FireGameEvent(void *_this, IGameEvent *event);
-// IBaseClient
-bool DispatchUserMessage(void *, int, bf_read &);
-int IN_KeyEvent(void *, int, int, const char *);
-// IInput
-CUserCmd *GetUserCmd(IInput *, int);
-// INetChannel
-bool SendNetMsg(INetChannel *, INetMessage &, bool, bool);
-bool CanPacket(INetChannel *);
-void Shutdown(INetChannel *, const char *);
-// ISteamFriends
-const char *GetFriendPersonaName(ISteamFriends *_this, CSteamID steamID);
-// IEngineVGui
-void Paint(IEngineVGui *_this, PaintMode_t mode);
-
-#if ENABLE_VISUALS
-// ClientMode
-void OverrideView(void *, CViewSetup *);
-// IVModelRender
-void DrawModelExecute(IVModelRender *_this, const DrawModelState_t &state,
-                      const ModelRenderInfo_t &info, matrix3x4_t *matrix);
-// IStudioRender
-void BeginFrame(IStudioRender *);
-// IBaseClient
-void FrameStageNotify(void *, int);
-// vgui::IPanel
-void PaintTraverse(vgui::IPanel *, unsigned int, bool, bool);
-// SDL
-void SDL_GL_SwapWindow(SDL_Window *window);
-int SDL_PollEvent(SDL_Event *event);
-// IUniformRandomStream
-int RandomInt(void *, int, int);
-#endif
-
-}
 
 }
 

src/hooks.cpp

@@ -77,11 +77,13 @@ void *VMTHook::GetMethod(uint32_t idx) const
     return vtable_original[idx];
 }
 
-void VMTHook::HookMethod(ptr_t func, uint32_t idx)
+void VMTHook::HookMethod(ptr_t func, uint32_t idx, ptr_t *backup)
 {
     logging::Info(
         "Hooking method %d of vtable 0x%08x, replacing 0x%08x with 0x%08x", idx,
         vtable_original, GetMethod(idx), func);
+    if (backup)
+        *backup = vtable_hooked[2 + idx];
     vtable_hooked[2 + idx] = func;
 }
 

src/hooks/CMakeLists.txt

@@ -1,11 +1,21 @@
 target_sources(cathook PRIVATE
+        "${CMAKE_CURRENT_LIST_DIR}/CanPacket.cpp"
         "${CMAKE_CURRENT_LIST_DIR}/CreateMove.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/DispatchUserMessage.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/FireGameEvent.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/GetFriendPersonaName.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/GetUserCmd.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/IN_KeyEvent.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/LevelInit.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/LevelShutdown.cpp"
         "${CMAKE_CURRENT_LIST_DIR}/nographics.cpp"
-        "${CMAKE_CURRENT_LIST_DIR}/others.cpp")
+        "${CMAKE_CURRENT_LIST_DIR}/others.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/Paint.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/PaintTraverse.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/sdl.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/SendNetMsg.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/Shutdown.cpp")
 
 if(EnableVisuals)
-    target_sources(cathook PRIVATE
-            "${CMAKE_CURRENT_LIST_DIR}/Paint.cpp"
-            "${CMAKE_CURRENT_LIST_DIR}/PaintTraverse.cpp"
-            "${CMAKE_CURRENT_LIST_DIR}/sdl.cpp")
+    add_subdirectory(visual)
 endif()

src/hooks/CanPacket.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(CanPacket, bool, INetChannel *this_)
+{
+    return original::CanPacket(this_);
+}
+
+}

src/hooks/CreateMove.cpp

@@ -10,6 +10,18 @@
 
 #include <link.h>
 
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(CreateMove, bool, void *this_, float input_sample_time, CUserCmd *cmd)
+{
+    return original::CreateMove(this_, input_sample_time, cmd);
+}
+
+}
+
 class CMoveData;
 namespace engine_prediction
 {

src/hooks/DispatchUserMessage.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(DispatchUserMessage, bool, void * this_, int type, bf_read &buffer)
+{
+    return original::DispatchUserMessage(this_, type, buffer);
+}
+
+}

src/hooks/FireGameEvent.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(FireGameEvent, void, void *this_, IGameEvent *event)
+{
+    return original::FireGameEvent(this_, event);
+}
+
+}

src/hooks/GetFriendPersonaName.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(GetFriendPersonaName, const char *, ISteamFriends *this_, CSteamID steam_id)
+{
+    return original::GetFriendPersonaName(this_, steam_id);
+}
+
+}

src/hooks/GetUserCmd.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(GetUserCmd, CUserCmd *, IInput *this_, int sequence_number)
+{
+    return original::GetUserCmd(this_, sequence_number);
+}
+
+}

src/hooks/IN_KeyEvent.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(IN_KeyEvent, int, void *this_, int eventcode, ButtonCode_t keynum, const char *binding)
+{
+    return original::IN_KeyEvent(this_, eventcode, keynum, binding);
+}
+
+}

src/hooks/LevelInit.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(LevelInit, void, void *this_, const char *name)
+{
+    return original::LevelInit(this_, name);
+}
+
+}

src/hooks/LevelShutdown.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(LevelShutdown, void, void *this_)
+{
+    return original::LevelShutdown(this_);
+}
+
+}

src/hooks/Paint.cpp

@@ -9,6 +9,16 @@
 #include "hitrate.hpp"
 #include "hack.hpp"
 
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(Paint, void, IEngineVGui *this_, PaintMode_t mode)
+{
+    return original::Paint(this_, mode);
+}
+
+}
+
 static CatVar cursor_fix_experimental(CV_SWITCH, "experimental_cursor_fix", "1",
                                       "Cursor fix");
 

src/hooks/SendNetMsg.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(SendNetMsg, bool, INetChannel *this_, INetMessage &message, bool force_reliable, bool voice)
+{
+    return original::SendNetMsg(this_, message, force_reliable, voice);
+}
+
+}

src/hooks/Shutdown.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(Shutdown, void, INetChannel *this_, const char *reason)
+{
+    return original::Shutdown(this_, reason);
+}
+
+}

src/hooks/visual/BeginFrame.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(BeginFrame, void, IStudioRender *this_)
+{
+    return original::BeginFrame(this_);
+}
+
+}

src/hooks/visual/CMakeLists.txt

@@ -0,0 +1,9 @@
+target_sources(cathook PRIVATE
+        "${CMAKE_CURRENT_LIST_DIR}/BeginFrame.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/DrawModelExecute.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/FrameStageNotify.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/OverrideView.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/PaintTraverse.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/RandomInt.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/SDL_GL_SwapWindow.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/SDL_PollEvent.cpp")

src/hooks/visual/DrawModelExecute.cpp

@@ -3,4 +3,15 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(DrawModelExecute, void, IVModelRender *this_, const DrawModelState_t &state,
+                     const ModelRenderInfo_t &info, matrix3x4_t *bone)
+{
+    return original::DrawModelExecute(this_, state, info, bone);
+}
+
+}

src/hooks/visual/FrameStageNotify.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(FrameStageNotify, void, void *this_, ClientFrameStage_t stage)
+{
+    return original::FrameStageNotify(this_, stage);
+}
+
+}

src/hooks/visual/OverrideView.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(OverrideView, void, void *this_, CViewSetup *setup)
+{
+    return original::OverrideView(this_, setup);
+}
+
+}

src/hooks/visual/PaintTraverse.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(PaintTraverse, void, vgui::IPanel *this_, unsigned int panel, bool force, bool allow_force)
+{
+    return original::PaintTraverse(this_, panel, force, allow_force);
+}
+
+}

src/hooks/visual/RandomInt.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(RandomInt, int, IUniformRandomStream *this_, int min, int max)
+{
+    return original::RandomInt(this_, min, max);
+}
+
+}

src/hooks/visual/SDL_GL_SwapWindow.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(SDL_GL_SwapWindow, void, SDL_Window *window)
+{
+    return original::SDL_GL_SwapWindow(window);
+}
+
+}

src/hooks/visual/SDL_PollEvent.cpp

@@ -3,4 +3,14 @@
   Copyright (c) 2018 nullworks. All rights reserved.
 */
 
-#include "HookedMethods.hpp"
+#include "HookedMethods.hpp"
+
+namespace hooked_methods
+{
+
+DEFINE_HOOKED_METHOD(SDL_PollEvent, int, SDL_Event *event)
+{
+    return original::SDL_PollEvent(event);
+}
+
+}