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Problens with testures...

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Im trying to make a function to load textures and use mipmapping.. But I how can I copy one texture into another tuxture usign diferents formats ?? I have make a small code and its not work, I dont know much about textures, if anyone can help me... HRESULT CTexture::LoadTexture(char * Filename, bool Mipmap) { HRESULT hr; MipMapping = Mipmap; hr = D3DXCreateTextureFromFile(g_pD3DDevice, Filename, &g_pMeshTextures); if FAILED(hr) { throw CErrorMsg(hr, "[CTexture::LoadTexture]: Error in D3DXCreateTextureFromFile.\n\n Erro criando textura!\n"); return E_FAIL; } g_pD3DDevice->CreateTexture(256, 256, 5, 0, D3DFMT_R5G6B5, D3DPOOL_DEFAULT, &g_pMipMap); g_pD3DDevice->CreateTexture(256, 256, 5, 0, D3DFMT_R5G6B5, D3DPOOL_SYSTEMMEM, &g_pTemp); for (int iLevel = 0; iLevel < g_pTemp->GetLevelCount(); iLevel++) { g_pTemp->GetSurfaceLevel(iLevel, &pDstSurfaceLevel); g_pMeshTextures->GetSurfaceLevel(iLevel, &pSrcSurfaceLevel); g_pD3DDevice->CopyRects(pSrcSurfaceLevel, NULL, 1, pDstSurfaceLevel, NULL); pSrcSurfaceLevel->Release(); pDstSurfaceLevel->Release(); } g_pD3DDevice->UpdateTexture(g_pTemp, g_pMipMap); return S_OK; }

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