private void Initialize(VertexInputLayoutBinding[] bindings, VertexInputLayoutAttribute[] attributes)
{
var glBindingAttribs = new List <GLVertexInputLayoutAttribute> [bindings.Length];
foreach (var attrib in attributes)
{
var bindingIndex = Array.FindIndex(bindings, binding => binding.Slot == attrib.Slot);
if (bindingIndex < 0)
{
continue;
}
GLHelper.GetGLVertexAttribFormat(attrib.Format, out var glType, out var glSize, out var glNormalized);
if (glBindingAttribs[bindingIndex] == null)
{
glBindingAttribs[bindingIndex] = new List <GLVertexInputLayoutAttribute>();
}
glBindingAttribs[bindingIndex].Add(new GLVertexInputLayoutAttribute {
Index = attrib.Location,
Offset = attrib.Offset,
Type = glType,
Size = glSize,
Normalized = glNormalized
});
}
var glBindings = new List <GLVertexInputLayoutBinding>();
for (var i = 0; i < bindings.Length; i++)
{
var glAttribs = glBindingAttribs[i];
if (glAttribs != null)
{
glBindings.Add(new GLVertexInputLayoutBinding {
Slot = bindings[i].Slot,
Stride = bindings[i].Stride,
Attributes = glAttribs.ToArray()
});
}
}
GLBindings = glBindings.ToArray();
foreach (var binding in GLBindings)
{
BindingMask |= 1L << binding.Slot;
foreach (var attrib in binding.Attributes)
{
AttributeMask |= 1L << attrib.Index;
}
}
}