The following changes consolidates the fringe handling from
xterm.c, w32term.c, and macterm.c into xdisp.c. * xdisp.c: Consolidate fringe handling code here. (left_bits, right_bits, continued_bits, continuation_bits) (ov_bits, zv_bits): Define fringe bitmaps. (fringe_bitmaps): New array holding fringe bitmaps. (draw_fringe_bitmap): Draw a specific bitmap; call display specific drawing routine via rif->draw_fringe_bitmap. (draw_row_fringe_bitmaps): Generic replacement for x_draw_row_fringe_bitmaps; all callers changed. (compute_fringe_widths): Generic replacement for x_compute_fringe_widths; all callers changed.
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