Method ReadFromFile

Shadows/SampleFramework11/Model.cpp:752–859

}

void Model::ReadFromFile(const wchar* path, ID3D11Device* device)
{
    wstring directory = GetDirectoryFromFilePath(path);

    // Open the file
    HANDLE fileHandle = CreateFile(path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if(fileHandle == INVALID_HANDLE_VALUE)
        Win32Call(false);

    // Read in the number of meshes
    uint32 numMeshes = 0;
    SerializeRead(fileHandle, numMeshes);

    meshes.resize(numMeshes);
    for(uint32 meshIdx = 0; meshIdx < numMeshes; ++meshIdx)
    {
        Mesh& mesh = meshes[meshIdx];

        // Read in the vertex data
        uint32 vbSize = 0;
        SerializeRead(fileHandle, vbSize);

        UINT8* vbData = new UINT8[vbSize];
        DWORD bytesRead = 0;
        Win32Call(ReadFile(fileHandle, vbData, vbSize, &bytesRead, NULL));

        D3D11_BUFFER_DESC vbDesc;
        vbDesc.ByteWidth = vbSize;
        vbDesc.CPUAccessFlags = 0;
        vbDesc.StructureByteStride = 0;
        vbDesc.MiscFlags = 0;
        vbDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
        vbDesc.Usage = D3D11_USAGE_IMMUTABLE;

        D3D11_SUBRESOURCE_DATA srData;
        srData.pSysMem = vbData;
        srData.SysMemPitch = 0;
        srData.SysMemSlicePitch = 0;
        DXCall(device->CreateBuffer(&vbDesc, &srData, &mesh.vertexBuffer));

        delete [] vbData;

        // Read in the index data
        uint32 ibSize = 0;
        SerializeRead(fileHandle, ibSize);

        UINT8* ibData = new UINT8[ibSize];
        Win32Call(ReadFile(fileHandle, ibData, ibSize, &bytesRead, NULL));

        D3D11_BUFFER_DESC ibDesc;
        ibDesc.ByteWidth = ibSize;
        ibDesc.CPUAccessFlags = 0;
        ibDesc.StructureByteStride = 0;
        ibDesc.MiscFlags = 0;
        ibDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
        ibDesc.Usage = D3D11_USAGE_IMMUTABLE;

        srData.pSysMem = ibData;