transform-feedback-output? ( object -- ? )

Vocabulary

gpu.render

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the transform-feedback-output class.

Definition

USING: classes.tuple.private gpu.buffers kernel kernel.private
math.private slots.private ;

IN: gpu.render

: transform-feedback-output? ( object -- ? )
    dup tag 1 eq?
    [ drop t ] [
        dup
        tuple?
        [
            layout-of
            dup
            dup
            1
            slot
            11
            fixnum>=
            [ 11 slot \ buffer eq? ]
            [ drop f ]
            if
            [ drop t ]
            [
                dup
                1
                slot
                9
                fixnum>=
                [ 9 slot \ buffer-range eq? ]
                [ drop f ]
                if
            ]
            if
        ]
        [ drop f ]
        if
    ] if ;