-;;;; ps-to-png.scm --
+;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; source file of the GNU LilyPond music typesetter
-;;;;
-;;;; (c) 2005--2008 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Copyright (C) 2005--2014 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;;
+;;;; LilyPond is free software: you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation, either version 3 of the License, or
+;;;; (at your option) any later version.
+;;;;
+;;;; LilyPond is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;;; GNU General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
(define-module (scm ps-to-png))
(lily)
)
-;; gettext wrapper for guile < 1.7.2
-(if (defined? 'gettext)
- (define-public _ gettext)
- (define-public (_ x) x))
+;; FIXME: use backend-library for duplicates and stubs; lilypond-ps2png.scm is no more
+
+(define-public _ gettext)
(define PLATFORM
(string->symbol
(define (search-executable names)
(define (helper path lst)
(if (null? (cdr lst))
- (car lst)
- (if (search-path path (car lst)) (car lst)
- (helper path (cdr lst)))))
+ (car lst)
+ (if (search-path path (car lst)) (car lst)
+ (helper path (cdr lst)))))
(let ((path (parse-path (getenv "PATH"))))
(helper path names)))
;; copy of ly:system. ly:* not available via lilypond-ps2png.scm
(define (my-system be-verbose exit-on-error cmd)
(define status 0)
- (if be-verbose
- (begin
- (format (current-error-port) (_ "Invoking `~a'...") cmd)
- (newline (current-error-port))))
+ (ly:debug (_ "Invoking `~a'...\n") cmd)
(set! status (system cmd))
(if (not (= status 0))
(begin
- (format (current-error-port)
- (format #f (_ "~a exited with status: ~S") "GS" status))
- (if exit-on-error (exit 1))))
+ (ly:error (_ "~a exited with status: ~S") "GS" status)
+ (if exit-on-error (exit 1))))
status)
(define (scale-down-image be-verbose factor file)
(define (with-pbm)
(let* ((status 0)
- (old (string-append file ".old")))
-
+ (old (string-append file ".old")))
+
(rename-file file old)
(my-system
be-verbose #t
(format #f
- "pngtopnm ~a | pnmscale -reduce ~a 2>/dev/null | pnmtopng -compression 9 2>/dev/null > ~a"
- old factor file))
+ "pngtopnm \"~a\" | pnmscale -reduce ~a 2>/dev/null | pnmtopng -compression 9 2>/dev/null > \"~a\""
+ old factor file))
(delete-file old)))
(with-pbm))
(define-public (ps-page-count ps-name)
(let* ((byte-count 10240)
- (header (gulp-file ps-name byte-count))
- (first-null (string-index header #\nul))
- (match (string-match "%%Pages: ([0-9]+)"
- (if (number? first-null)
- (substring header 0 first-null)
- header))))
+ (header (gulp-file ps-name byte-count))
+ (first-null (string-index header #\nul))
+ (match (string-match "%%Pages: ([0-9]+)"
+ (if (number? first-null)
+ (substring header 0 first-null)
+ header))))
(if match (string->number (match:substring match 1)) 0)))
(define-public (make-ps-images ps-name . rest)
(pixmap-format 'png16m)
(anti-alias-factor 1))
- (let* ((format-str (format "~a" pixmap-format))
- (extension (cond
- ((string-contains format-str "png") "png")
- ((string-contains format-str "jpg") "jpeg")
- ((string-contains format-str "jpeg") "jpeg")
- (else
- (ly:error "Unknown pixmap format ~a" pixmap-format))))
- (base (dir-basename ps-name ".ps" ".eps"))
- (png1 (format "~a.~a" base extension))
- (pngn (format "~a-page%d.~a" base extension))
- (page-count (ps-page-count ps-name))
- (multi-page? (> page-count 1))
- (output-file (if multi-page? pngn png1))
-
- (gs-variable-options
- (if multi-page?
- (format #f "-dDEVICEWIDTHPOINTS=~,2f -dDEVICEHEIGHTPOINTS=~,2f"
- page-width page-height)
- "-dEPSCrop"))
- (cmd (format #f "~a\
+ (let* ((format-str (format #f "~a" pixmap-format))
+ (extension (cond
+ ((string-contains format-str "png") "png")
+ ((string-contains format-str "jpg") "jpeg")
+ ((string-contains format-str "jpeg") "jpeg")
+ (else
+ (ly:error "Unknown pixmap format ~a" pixmap-format))))
+ (base (string-join
+ (string-split (dir-basename ps-name ".ps" ".eps") #\%)
+ "%%"))
+ (png1 (format #f "~a.~a" base extension))
+ (pngn (format #f "~a-page%d.~a" base extension))
+ (page-count (ps-page-count ps-name))
+ (multi-page? (> page-count 1))
+ (output-file (if multi-page? pngn png1))
+
+ (gs-variable-options
+ (if (string-suffix-ci? ".eps" ps-name)
+ "-dEPSCrop"
+ (format #f "-dDEVICEWIDTHPOINTS=~,2f -dDEVICEHEIGHTPOINTS=~,2f"
+ page-width page-height)))
+ (cmd (ly:format "~a\
~a\
~a\
-dGraphicsAlphaBits=4\
-dNOPAUSE\
-sDEVICE=~a\
-sOutputFile=~S\
- -r~S\
+ -r~a\
~S\
-c quit"
- (search-gs)
- (if be-verbose "" "-q")
- gs-variable-options
- pixmap-format
- output-file
- (* anti-alias-factor resolution) ps-name))
- (status 0)
- (files '()))
+ (search-gs)
+ (if be-verbose "" "-q")
+ gs-variable-options
+ pixmap-format
+ output-file
+ (* anti-alias-factor resolution) ps-name))
+ (status 0)
+ (files '()))
;; The wrapper on windows cannot handle `=' signs,
;; gs has a workaround with #.
(if (eq? PLATFORM 'windows)
- (begin
- (set! cmd (re-sub "=" "#" cmd))
- (set! cmd (re-sub "-dSAFER " "" cmd))))
+ (begin
+ (set! cmd (re-sub "=" "#" cmd))
+ (set! cmd (re-sub "-dSAFER " "" cmd))))
(set! status (my-system be-verbose #f cmd))
(set! files
- (if multi-page?
- (map
- (lambda (n)
- (format "~a-page~a.png" base (1+ n)))
- (iota page-count))
- (list (format "~a.png" base))))
-
+ (if multi-page?
+ (map
+ (lambda (n)
+ (format #f "~a-page~a.png" base (1+ n)))
+ (iota page-count))
+ (list (format #f "~a.png" base))))
+
(if (not (= 0 status))
- (begin
- (map delete-file files)
- (exit 1)))
+ (begin
+ (for-each delete-file files)
+ (exit 1)))
(if (and rename-page-1 multi-page?)
- (begin
- (rename-file (re-sub "%d" "1" pngn) png1)
- (set! files
- (cons png1
- (cdr files)))
- ))
+ (begin
+ (rename-file (re-sub "%d" "1" pngn) png1)
+ (set! files
+ (cons png1
+ (cdr files)))
+ ))
(if (not (= 1 anti-alias-factor))
- (for-each
- (lambda (f) (scale-down-image be-verbose anti-alias-factor f)) files))
+ (for-each
+ (lambda (f) (scale-down-image be-verbose anti-alias-factor f)) files))
files)))
projects / lilypond.git / blobdiff