From 4847907ee7e44f9b83e7f7c55dc9605d261bb18e Mon Sep 17 00:00:00 2001 From: Masaya Tojo Date: Wed, 7 Aug 2024 12:29:21 +0900 Subject: Raneme procedures from pixel-setter/getter to pixel-writer/reader --- pnm/pbm.scm | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'pnm/pbm.scm') diff --git a/pnm/pbm.scm b/pnm/pbm.scm index b3d2c3c..e8e01d3 100644 --- a/pnm/pbm.scm +++ b/pnm/pbm.scm @@ -44,15 +44,15 @@ (values (+ (* y byte-width) byte-x) bit-x))) - (define (pixel-getter x y) + (define (pixel-reader x y) (let-values (((byte-idx bit-idx) (xy->byte-idx+bit-idx x y))) (let ((byte (bytevector-u8-ref data byte-idx))) (bit-set? (- 7 bit-idx) byte)))) - (define (pixel-setter x y b) + (define (pixel-writer x y b) (let-values (((byte-idx bit-idx) (xy->byte-idx+bit-idx x y))) (let ((byte (bytevector-u8-ref data byte-idx))) (bytevector-u8-set! data byte-idx (copy-bit (- 7 bit-idx) byte b))))) (unless (= byte-count (bytevector-length data)) (error (string-append "(pnm pbm) make-pbm-image: Invalid bytevector length" byte-count))) - (make-image 'pbm width height #t data pixel-getter pixel-setter))))) + (make-image 'pbm width height #t data pixel-reader pixel-writer))))) -- cgit v1.2.3