from blown speakers

main
Matthew Butterick 5 years ago
parent 245c8f6ea3
commit 9c21843d08

@ -15,8 +15,8 @@ https://github.com/mbutterick/fontkit/blob/master/src/glyph/CFFGlyph.js
(define (bias this s)
(cond
[(< (length s) 1240) 107]
[(< (length s) 33900) 1131]
[(< (vector-length s) 1240) 107]
[(< (vector-length s) 33900) 1131]
[else 32768]))
(define-syntax-rule (case= ID [(NUMS ...) . BODY] ... [else . ELSEBODY])
@ -29,7 +29,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/glyph/CFFGlyph.js
;;;(define pos (pos stream))
(define cff (get-table (glyph-font this) 'CFF_))
(define str (list-ref (hash-ref (hash-ref cff 'topDict) 'CharStrings) (glyph-id this)))
(define str (vector-ref (hash-ref (hash-ref cff 'topDict) 'CharStrings) (glyph-id this)))
(define end (+ (hash-ref str 'offset) (hash-ref str 'length)))
(pos stream (hash-ref str 'offset))
@ -73,11 +73,15 @@ https://github.com/mbutterick/fontkit/blob/master/src/glyph/CFFGlyph.js
(define usedSubrs (make-hash))
(define open #false)
(define gsubrs (hash-ref cff 'globalSubrIndex null))
(define gsubrs (match (hash-ref cff 'globalSubrIndex (vector))
[(? list? vals) (list->vector vals)]
[vec vec]))
(define gsubrsBias (bias this gsubrs))
(define privateDict (or (privateDictForGlyph cff (glyph-id this)) (make-hash)))
(define subrs (hash-ref privateDict 'Subrs null))
(define subrs (match (hash-ref privateDict 'Subrs (vector))
[(? list? vals) (list->vector vals)]
[vec vec]))
(define subrsBias (bias this subrs))
;; skip variations shit
@ -147,7 +151,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/glyph/CFFGlyph.js
[(10) ;; callsubr
(define index (+ (pop stack) subrsBias))
(define subr (list-ref subrs index))
(define subr (vector-ref subrs index))
(when subr
(hash-set! usedSubrs index #true)
(define p (pos stream))
@ -264,7 +268,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/glyph/CFFGlyph.js
[(29) ;; callgsubr
(define index (+ (pop stack) gsubrsBias))
(define subr (list-ref gsubrs index))
(define subr (vector-ref gsubrs index))
(when subr
(hash-set! usedGsubrs index #true)
(define p (pos stream))

@ -144,7 +144,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/subset/CFFSubset.js
(set-cff-subset-strings! this
(append (cff-subset-strings this) (list string)))
(+ (length standardStrings) (sub1 (length (cff-subset-strings this))))]))
(+ (vector-length standardStrings) (sub1 (length (cff-subset-strings this))))]))
(define (cff-subset-encode this stream)

@ -28,7 +28,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/cff/CFFFont.js
(when (and (hash-has-key? cff-font 'version) (< (hash-ref cff-font 'version) 2))
(match (hash-ref cff-font 'topDictIndex)
[(list dict) (hash-set! cff-font 'topDict dict)]
[(vector dict) (hash-set! cff-font 'topDict dict)]
[_ (error 'only-single-font-allowed-in-cff)]))
(hash-set! cff-font 'isCIDFont (hash-ref (hash-ref cff-font 'topDict) 'ROS))
@ -38,16 +38,16 @@ https://github.com/mbutterick/fontkit/blob/master/src/cff/CFFFont.js
(cond
[(not sid) #false]
[(>= (hash-ref this 'version) 2) #false]
[(< sid (length standardStrings)) (list-ref standardStrings sid)]
[else (list-ref (hash-ref this 'stringIndex) (- sid (length standardStrings)))]))
[(< sid (vector-length standardStrings)) (vector-ref standardStrings sid)]
[else (vector-ref (hash-ref this 'stringIndex) (- sid (vector-length standardStrings)))]))
(define (CFFFont-postscriptName this)
(and (< (hash-ref this 'version) 2) (car (hash-ref this 'nameIndex))))
(and (< (hash-ref this 'version) 2) (vector-ref (hash-ref this 'nameIndex) 0)))
(define CFFFont (make-object CFFFont%))
(define (getCharString cff-font glyph-id)
(define glyph-record (list-ref (hash-ref (hash-ref cff-font 'topDict) 'CharStrings) glyph-id))
(define glyph-record (vector-ref (hash-ref (hash-ref cff-font 'topDict) 'CharStrings) glyph-id))
(pos (hash-ref cff-font 'stream) (hash-ref glyph-record 'offset))
(read-bytes (hash-ref glyph-record 'length) (hash-ref cff-font 'stream)))

@ -33,7 +33,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/cff/CFFIndex.js
(define startPos (+ (pos stream) (* (add1 count) offSize) -1))
(for/fold ([vals null]
[start (send offsetType x:decode stream)]
#:result (begin0 (reverse vals) (pos stream (+ startPos start))))
#:result (begin0 (list->vector (reverse vals)) (pos stream (+ startPos start))))
([i (in-range count)])
(define end (send offsetType x:decode stream))
(define val
@ -50,15 +50,18 @@ https://github.com/mbutterick/fontkit/blob/master/src/cff/CFFIndex.js
'length (- end start))]))
(values (cons val vals) end))]))
(define/augride (x:size arr parent)
(define/augride (x:size arr-arg parent)
(define arr (match arr-arg
[(? list? xs) (list->vector xs)]
[vec vec]))
(+ 2
(cond
[(zero? (length arr)) 0]
[(zero? (vector-length arr)) 0]
[else (define type (or @type (x:buffer)))
;; find maximum offset to determinine offset type
(define offset
(add1 (for/sum ([item (in-list arr)])
(add1 (for/sum ([item (in-vector arr)])
(send type x:size item parent))))
(define offset-type
@ -69,12 +72,15 @@ https://github.com/mbutterick/fontkit/blob/master/src/cff/CFFIndex.js
[(<= offset #xffffffff) uint32be]
[else (error 'CFFIndex-size (format "bad offset: ~a" offset))]))
(+ (* (send offset-type x:size) (add1 (length arr))) offset)])))
(+ (* (send offset-type x:size) (add1 (vector-length arr))) offset)])))
(define/augride (x:encode arr stream parent)
(send uint16be x:encode (length arr) stream)
(define/augride (x:encode arr-arg stream parent)
(define arr (match arr-arg
[(? list? xs) (list->vector xs)]
[vec vec]))
(send uint16be x:encode (vector-length arr) stream)
(cond
[(zero? (length arr))]
[(zero? (vector-length arr))]
[else
(define type (or @type (x:buffer)))
@ -83,7 +89,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/cff/CFFIndex.js
(for/fold ([sizes null]
[offset 1]
#:result (values (reverse sizes) offset))
([item (in-list arr)])
([item (in-vector arr)])
(define s (send type x:size item parent))
(values (cons s sizes) (+ offset s))))
@ -105,7 +111,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/cff/CFFIndex.js
(send offsetType x:encode next-offset stream)
next-offset)
(for ([item (in-list arr)])
(for ([item (in-vector arr)])
(send type x:encode item stream parent))]))))
(define (CFFIndex [type #f])

@ -7,7 +7,7 @@ https://github.com/mbutterick/fontkit/blob/master/src/cff/CFFStandardStrings.js
|#
(define standardStrings
'(".notdef" "space" "exclam" "quotedbl" "numbersign" "dollar"
'#(".notdef" "space" "exclam" "quotedbl" "numbersign" "dollar"
"percent" "ampersand" "quoteright" "parenleft" "parenright"
"asterisk" "plus" "comma" "hyphen" "period" "slash" "zero" "one"
"two" "three" "four" "five" "six" "seven" "eight" "nine" "colon"

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