forked from ruricolist/lisp-magick-wand
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathtypes.lisp
169 lines (134 loc) · 6.36 KB
/
types.lisp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
;;;; ImageMagick binding for Common Lisp
;;;; Copyright (c) 2006, 2007, 2008, 2009 Hans Bulfone <[email protected]>
;;;; All rights reserved.
;;;;
;;;; Redistribution and use in source and binary forms, with or without
;;;; modification, are permitted provided that the following conditions are met:
;;;;
;;;; * Redistributions of source code must retain the above copyright notice,
;;;; this list of conditions and the following disclaimer.
;;;; * Redistributions in binary form must reproduce the above copyright
;;;; notice, this list of conditions and the following disclaimer in the
;;;; documentation and/or other materials provided with the distribution.
;;;; * Neither the name of the author nor the names of his contributors may
;;;; be used to endorse or promote products derived from this software
;;;; without specific prior written permission.
;;;;
;;;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
;;;; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
;;;; THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
;;;; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
;;;; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
;;;; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
;;;; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
;;;; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
;;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
;;;; OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
;;;; ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
(in-package :lisp-magick-wand)
(defmagickfun "MagickRelinquishMemory" :pointer ((ptr :pointer)))
(defmacro defmagicktype (name base-type)
`(cffi:define-foreign-type ,(type-name-to-class-name name) () ()
(:actual-type ,base-type)
(:simple-parser ,name)))
(defmacro defmagicktrans (method-name (value-arg (type-arg type-name)
&rest other-args)
&body body)
`(defmethod ,method-name (,value-arg (,type-arg ,(type-name-to-class-name type-name))
,@other-args)
,@body))
;; size_t
(defmagicktype size-t :uint)
(defmagicktrans cffi:expand-to-foreign (value (type size-t)) value)
(defmagicktrans cffi:expand-from-foreign (value (type size-t)) value)
;; magick-double
(defmagicktype magick-double :double)
(defmagicktrans cffi:expand-to-foreign (value (type magick-double))
`(coerce ,value 'double-float))
(defmagicktrans cffi:expand-from-foreign (value (type magick-double))
value)
(defmagicktrans cffi:translate-to-foreign (value (type magick-double))
(values (coerce value 'double-float) nil))
;; Quantum
(declaim (inline byte->quantum quantum->byte))
#+lisp-magick-wand:quantum-8
(progn
(defmagicktype quantum :uint8)
(defun byte->quantum (b) b)
(defun quantum->byte (b) b))
#+lisp-magick-wand:quantum-16
(progn
(defmagicktype quantum :uint16)
(defun byte->quantum (b) (* b 257))
(defun quantum->byte (b) (values (truncate b 257))))
#+lisp-magick-wand:quantum-32
(progn
(defmagicktype quantum :uint32)
(defun byte->quantum (b) (* b 16843009))
(defun quantum->byte (b) (values (truncate b 16843009))))
#+(and lisp-magick-wand:quantum-64 cffi-features:no-long-long)
(error "your version of imagemagick uses a quantum size of 64bit,
but cffi doesn't support long long on your lisp implementation.")
#+(and lisp-magick-wand:quantum-64 (not cffi-features:no-long-long))
(progn
(defmagicktype quantum :uint64)
(defun byte->quantum (b) (* b 72340172838076673))
(defun quantum->byte (b) (values (truncate b 72340172838076673))))
#-(or lisp-magick-wand:quantum-8 lisp-magick-wand:quantum-16
lisp-magick-wand:quantum-32 lisp-magick-wand:quantum-64)
(error "quantum size feature not defined")
(defmagicktrans cffi:expand-to-foreign (value (type quantum)) value)
(defmagicktrans cffi:expand-from-foreign (value (type quantum)) value)
;; Boolean
(defmethod %error-condition (value (type (eql :boolean)))
`(not ,value))
;; String Types
;; this is cffi:defctype (and not defmagicktype) on purpose
;; - we want to inherit :string's translators
(cffi:defctype magick-string :string)
(defmethod %error-condition (value (type (eql 'magick-string)))
`(null ,value))
(defmagicktype magick-string/free :pointer)
(defmagicktrans cffi:translate-from-foreign (value (type magick-string/free))
(prog1
(cffi:foreign-string-to-lisp value)
(unless (cffi:null-pointer-p value)
(relinquish-memory value))))
(defmagicktrans cffi:translate-to-foreign (value (type magick-string/free))
(values (cffi:foreign-string-alloc value) t))
(defmagicktrans cffi:free-translated-object (value (type magick-string/free) free-p)
(when free-p
(cffi:foreign-string-free value)))
(defmagicktrans cffi:expand-from-foreign (value (type magick-string/free))
(let ((g (gensym)))
`(let ((,g ,value))
(prog1
(cffi:foreign-string-to-lisp ,g)
(unless (cffi:null-pointer-p ,g)
(relinquish-memory ,g))))))
(defmethod %error-condition (value (type (eql 'magick-string/free)))
`(null ,value))
;; MagickWand
(defmagicktype magick-wand :pointer)
(defmagicktrans cffi:expand-to-foreign (value (type magick-wand)) value)
(defmagicktrans cffi:expand-from-foreign (value (type magick-wand)) value)
(defmethod %error-condition (value (type (eql 'magick-wand)))
`(cffi:null-pointer-p ,value))
(defmethod %error-signalling-code (wand (type (eql 'magick-wand)))
`(signal-magick-wand-error ,wand))
;; PixelWand
(defmagicktype pixel-wand :pointer)
(defmagicktrans cffi:expand-to-foreign (value (type pixel-wand)) value)
(defmagicktrans cffi:expand-from-foreign (value (type pixel-wand)) value)
(defmethod %error-condition (value (type (eql 'pixel-wand)))
`(cffi:null-pointer-p ,value))
(defmethod %error-signalling-code (wand (type (eql 'pixel-wand)))
`(signal-pixel-wand-error ,wand))
;; DrawingWand
(defmagicktype drawing-wand :pointer)
(defmagicktrans cffi:expand-to-foreign (value (type drawing-wand)) value)
(defmagicktrans cffi:expand-from-foreign (value (type drawing-wand)) value)
(defmethod %error-condition (value (type (eql 'drawing-wand)))
`(cffi:null-pointer-p ,value))
(defmethod %error-signalling-code (wand (type (eql 'drawing-wand)))
`(signal-drawing-wand-error ,wand))