полный переход на warcraft xl

loader/d3d9.cpp

@@ -0,0 +1,65 @@
+// Minimal D3D9 forwarding proxy for loading WarcraftXL without editing Wow.exe.
+
+#include <windows.h>
+#include <d3d9.h>
+
+namespace
+{
+    using Create9Fn = IDirect3D9* (WINAPI*)(UINT);
+    using Create9ExFn = HRESULT (WINAPI*)(UINT, IDirect3D9Ex**);
+
+    HMODULE g_systemD3D9 = nullptr;
+    Create9Fn g_create9 = nullptr;
+    Create9ExFn g_create9Ex = nullptr;
+
+    void ResolveSystemD3D9()
+    {
+        if (g_systemD3D9) return;
+        char path[MAX_PATH] = {};
+        const UINT length = GetSystemDirectoryA(path, MAX_PATH);
+        if (!length || length >= MAX_PATH - 10) return;
+        lstrcatA(path, "\\d3d9.dll");
+        g_systemD3D9 = LoadLibraryA(path);
+        if (!g_systemD3D9) return;
+        g_create9 = reinterpret_cast<Create9Fn>(GetProcAddress(g_systemD3D9, "Direct3DCreate9"));
+        g_create9Ex = reinterpret_cast<Create9ExFn>(GetProcAddress(g_systemD3D9, "Direct3DCreate9Ex"));
+    }
+
+    void LoadWarcraftXL()
+    {
+        static bool attempted = false;
+        if (attempted) return;
+        attempted = true;
+        LoadLibraryA("WarcraftXL.dll");
+    }
+}
+
+extern "C" IDirect3D9* WINAPI Direct3DCreate9(UINT sdkVersion)
+{
+    ResolveSystemD3D9();
+    LoadWarcraftXL();
+    return g_create9 ? g_create9(sdkVersion) : nullptr;
+}
+
+extern "C" HRESULT WINAPI Direct3DCreate9Ex(UINT sdkVersion, IDirect3D9Ex** output)
+{
+    ResolveSystemD3D9();
+    LoadWarcraftXL();
+    if (g_create9Ex) return g_create9Ex(sdkVersion, output);
+    if (output) *output = nullptr;
+    return E_NOINTERFACE;
+}
+
+// Compatibility exports referenced by the current WarcraftXL core. MoonWell
+// does not enable its D3D9On12 backend, so these intentionally report no D3D12
+// device and a neutral supersampling factor.
+extern "C" void* WxlD3D12Device() { return nullptr; }
+extern "C" void* WxlD3D12Queue() { return nullptr; }
+extern "C" void WxlD3D12DrainDebug() {}
+extern "C" void WxlSetSsaaFactor(float) {}
+extern "C" float WxlGetSsaaFactor() { return 1.0f; }
+
+BOOL WINAPI DllMain(HINSTANCE, DWORD, LPVOID)
+{
+    return TRUE;
+}