multiply-directwrite-transforms ( a b -- matrix )

Vocabulary

ui.text.directwrite.transforms

Inputs

a	an object
b	an object

Outputs

matrix

an object

Definition

USING: math sequences ;

IN: ui.text.directwrite.transforms

:: multiply-directwrite-transforms ( a b -- matrix )
    16 <iota> [| i |
        i 4 mod :> row i 4 /i :> col 0.0 4 <iota>
        [| k | k 4 * row + a nth col 4 * k + b nth * + ] each
    ] map ;