public byte[] Read(Stream stream, out int x, out int y, out int comp, int req_comp) { _stream = stream; try { int xx, yy, ccomp; var result = Stb.stbi_load_from_callbacks(_callbacks, null, &xx, &yy, &ccomp, req_comp); x = xx; y = yy; comp = ccomp; if (result == null) { throw new Exception(Stb.LastError); } // Convert to array var c = req_comp != 0 ? req_comp : comp; var data = new byte[x * y * c]; Marshal.Copy(new IntPtr(result), data, 0, data.Length); Operations.Free(result); return(data); } finally { _stream = null; } }