read-pixels ( FRAME-BUFFER -- )

Vocabulary

ui.gadgets.frame-buffer

Inputs

FRAME-BUFFER

an object

Outputs

None

Definition

USING: accessors kernel math opengl opengl.gl sequences ;

IN: ui.gadgets.frame-buffer

:: read-pixels ( FRAME-BUFFER -- )
    0 0 FRAME-BUFFER dim>> first2 [ gl-scale >fixnum ] bi@
    GL_RGBA GL_UNSIGNED_INT FRAME-BUFFER pixels>> glReadPixels ;