Hook d3d device's reset method and reset imgui when the user changes …

…graphic settings
L-Leite · Feb 19, 2019 · 68af3df · 68af3df
1 parent a9cf49a
commit 68af3df
Show file tree

Hide file tree

Showing 4 changed files with 32 additions and 3 deletions.
diff --git a/launcher/header/console.hpp b/launcher/header/console.hpp
@@ -41,6 +41,8 @@ class GameConsole
 
     int ConsoleInputCallBack( ImGuiInputTextCallbackData* data );
 
+	void OnPreReset();
+    void OnPostReset();
     void OnEndScene();
 
     bool OnWindowCallback( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam );

diff --git a/launcher/source/console.cpp b/launcher/source/console.cpp
@@ -534,6 +534,22 @@ int GameConsole::ConsoleInputCallBack( ImGuiInputTextCallbackData* data )
     return 0;
 }
 
+//
+// reset imgui when changing graphics settings
+//
+void GameConsole::OnPreReset()
+{
+    ImGui_ImplDX9_InvalidateDeviceObjects();
+}
+
+//
+// once the new graphics settings are applied, setup imgui again
+//
+void GameConsole::OnPostReset()
+{
+    ImGui_ImplDX9_CreateDeviceObjects();
+}
+
 // this is called by the game's d3d device's endscene
 // draws our own console
 void GameConsole::OnEndScene()

diff --git a/launcher/source/hooks/shaderapidx9.cpp b/launcher/source/hooks/shaderapidx9.cpp
@@ -16,10 +16,20 @@ LPDIRECT3DDEVICE9 GetD3dDevice( const uintptr_t base )
 static std::unique_ptr<PLH::VTableSwapHook> g_pDeviceHook;
 static PLH::VFuncMap g_DeviceOrig;
 
-NOINLINE HRESULT WINAPI hkEndScene( LPDIRECT3DDEVICE9 pDevice )
+NOINLINE HRESULT WINAPI hkReset(
+    LPDIRECT3DDEVICE9 thisptr, D3DPRESENT_PARAMETERS* pPresentationParameters )
+{
+    g_GameConsole.OnPreReset();
+    const HRESULT result = PLH::FnCast( g_DeviceOrig.at( 16 ), &hkReset )(
+        thisptr, pPresentationParameters );
+    g_GameConsole.OnPostReset();
+    return result;
+}
+
+NOINLINE HRESULT WINAPI hkEndScene( LPDIRECT3DDEVICE9 thisptr )
 {
     g_GameConsole.OnEndScene();
-    return PLH::FnCast( g_DeviceOrig.at( 42 ), &hkEndScene )( pDevice );
+    return PLH::FnCast( g_DeviceOrig.at( 42 ), &hkEndScene )( thisptr );
 }
 
 static std::unique_ptr<PLH::x86Detour> g_pCreateDeviceHook;
@@ -42,6 +52,7 @@ NOINLINE bool __fastcall hkCreateD3DDevice(
         // hook the game's d3d device endscene (its virtual function table index
         // is 42)
         static const PLH::VFuncMap deviceRedirects = {
+            { uint16_t( 16 ), reinterpret_cast<uint64_t>( &hkReset ) },
             { uint16_t( 42 ), reinterpret_cast<uint64_t>( &hkEndScene ) }
         };
         g_pDeviceHook = SetupVtableSwap( pDevice, deviceRedirects );

diff --git a/version.txt b/version.txt
@@ -1 +1 @@
-0.3.1
+0.3.2