fixed-point Cohen-Sutherland line clipper. */

copy user's palette into shadow palette, then set real palette. */

clip flat8 bitmap against cliprect and jump to unclipped drawer. */

clip flat8 bitmap against cliprect and jump to unclipped drawer. */

returns value of the clipped pixel at (x, y). returns -1 if pixel isn't in the window bounds. */

set a clipped pixel in bank-switched memory. return the clip code. */

set a clipped pixel in bank-switched memory. draws an 8-8-8 long rgb c at (x,y). return the clip code. */

draw a clipped, unfilled rectangle. does 2 clipped hlines and 2 clipped vlines. returns clip code. */

draw a clipped, horizontally flipped flat 8bitmap to a canvas. */

understands fill type. */

clipped flat8 bitmap capture. reads from the current canvas at (x,y) into bm, clipping against the canvas. any section of the destination bitm

draw a clipped, horizontally flipped flat 8bitmap to a canvas. */

this really should return a clip code */

clip monochrome bitmap against cliprect and jump to unclipped drawer. */

draw a clipped, filled rectangle. clip, then chain to the installed unclipped rectangle drawer. returns clip code. */

ignores fill type. */

clip flat8 bitmap against cliprect and jump to unclipped drawer. */