Full Unicode patch with RTL Support & BiDi logic.

This commit is well documented, so no need to tell you my life story.

Full Unicode patch with RTL Support & BiDi logic.

Removed the legacy codePage, normalised to UTF8 (65001).

It also comes with:

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CTRL + X : cut
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CTRL + Z : undo

src/EterLib/GrpVertexShader.cpp

@@ -3,6 +3,8 @@
 #include "GrpD3DXBuffer.h"
 #include "StateManager.h"
 
+#include <utf8.h>
+
 CVertexShader::CVertexShader()
 {
 	Initialize();
@@ -29,21 +31,44 @@ void CVertexShader::Destroy()
 
 bool CVertexShader::CreateFromDiskFile(const char* c_szFileName, const DWORD* c_pdwVertexDecl)
 {
-	Destroy();
+    Destroy();
 
-	LPD3DXBUFFER lpd3dxShaderBuffer;
-	LPD3DXBUFFER lpd3dxErrorBuffer;
-	
-	if (FAILED(
-		D3DXAssembleShaderFromFile(c_szFileName, 0, NULL, 0, &lpd3dxShaderBuffer, &lpd3dxErrorBuffer)
-	)) return false;
+    if (!c_szFileName || !*c_szFileName)
+        return false;
 
-	if (FAILED(
-		ms_lpd3dDevice->CreateVertexShader((const DWORD*)lpd3dxShaderBuffer->GetBufferPointer(), &m_handle)
-		))
-		return false;
+    // UTF-8 → UTF-16 for D3DX
+    std::wstring wFileName = Utf8ToWide(c_szFileName);
 
-	return true;
+    LPD3DXBUFFER lpd3dxShaderBuffer = nullptr;
+    LPD3DXBUFFER lpd3dxErrorBuffer = nullptr;
+
+    HRESULT hr = D3DXAssembleShaderFromFileW(
+        wFileName.c_str(),
+        nullptr,
+        nullptr,
+        0,
+        &lpd3dxShaderBuffer,
+        &lpd3dxErrorBuffer
+    );
+
+    if (FAILED(hr))
+    {
+        if (lpd3dxErrorBuffer)
+        {
+            const char* err = (const char*)lpd3dxErrorBuffer->GetBufferPointer();
+            TraceError("Vertex shader compile error: %s", err);
+        }
+        return false;
+    }
+
+    if (FAILED(
+        ms_lpd3dDevice->CreateVertexShader(
+            (const DWORD*)lpd3dxShaderBuffer->GetBufferPointer(),
+            &m_handle
+        )))
+        return false;
+
+    return true;
 }
 
 void CVertexShader::Set()