Add uint overload for BufferData to OpenGLExtensions

[jochemgeussens]

Dear Sir

I'm really grateful for the ushort[] and float[] overload to BufferData, as I previously had no experience with IntPtr's. So this was a good example to get started with it. But for larger data (>65k) ushort is not an option as index buffer. So could you consider adding a uint overload as well. I created an extension method for it at the moment.

I think you can just copy paste this into OpenGLExtensions:

    public void BufferData(uint target, uint[] data, uint usage)
    {
        var dataSize = data.Length * sizeof(uint);
        IntPtr p = Marshal.AllocHGlobal(dataSize);
        var intData = new int[data.Length];
        Buffer.BlockCopy(data, 0, intData, 0, dataSize);
        Marshal.Copy(intData, 0, p, data.Length);
        InvokeExtensionFunction<glBufferData>(target, dataSize, p, usage);
        Marshal.FreeHGlobal(p);
    }

Kind regards, Jochem.

[dwmkerr]

Hi Jochem,

Thanks for getting in touch and the code sample - I will include it in the next release :)

[laurentchougrani]

I have implemented it on my version, pretty quick. There is a little drop of FPS du to the 32 bits dataset but it works fine with around 50FPS for large meshes. (I couldn't find any Dll with that option for SharpGL)