Newer
Older
;;; -*- Mode: LISP; Syntax: Common-lisp; Package: XLIB; Base: 10; Lowercase: Yes -*-
;;;
;;; TEXAS INSTRUMENTS INCORPORATED
;;; P.O. BOX 2909
;;; AUSTIN, TEXAS 78769
;;;
;;; Copyright (C) 1987 Texas Instruments Incorporated.
;;;
;;; Permission is granted to any individual or institution to use, copy, modify,
;;; and distribute this software, provided that this complete copyright and
;;; permission notice is maintained, intact, in all copies and supporting
;;; documentation.
;;;
;;; Texas Instruments Incorporated provides this software "as is" without
;;; express or implied warranty.
;;;
;;; CLX basicly implements a very low overhead remote procedure call
;;; to the server. This file contains macros which generate the code
;;; for both the client AND the server, given a specification of the
;;; interface. This was done to eliminate errors that may occur because
;;; the client and server code get/put bytes in different places, and
;;; it makes it easier to extend the protocol.
;;; This is built on top of BUFFER
(in-package :xlib)
(defmacro type-check (value type)
value type
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
`(unless (type? ,value ,type)
(x-type-error ,value ,type))))
;;; This variable is used by the required-arg macro just to satisfy compilers.
(defvar *required-arg-dummy*)
;;; An error signalling macro use to specify that keyword arguments are required.
(defmacro required-arg (name)
`(progn (x-error 'missing-parameter :parameter ',name)
*required-arg-dummy*))
(defmacro lround (index)
;; Round up to the next 32 bit boundary
`(the array-index (logand (index+ ,index 3) -4)))
(defmacro wround (index)
;; Round up to the next 16 bit boundary
`(the array-index (logand (index+ ,index 1) -2)))
;;
;; Data-type accessor functions
;;
;; These functions translate between lisp data-types and the byte,
;; half-word or word that gets transmitted across the client/server
;; connection
(defun index-increment (type)
;; Given a type, return its field width in bytes
(let* ((name (if (consp type) (car type) type))
(increment (get name 'byte-width :not-found)))
(when (eq increment :not-found)
;; Check for TYPE in a different package
(when (not (eq (symbol-package name) *xlib-package*))
(setq name (xintern name))
(setq increment (get name 'byte-width :not-found)))
(when (eq increment :not-found)
(error "~s isn't a known field accessor" name)))
increment))
(eval-when (:compile-toplevel :load-toplevel :execute)
(defun getify (name)
(xintern name '-get))
(defun putify (name &optional predicate-p)
(xintern name '-put (if predicate-p '-predicating "")))
(defmacro define-accessor (name (width) &body get-put-macros)
;; The first body form defines the get macro
;; The second body form defines the put macro
;; The third body form is optional, and defines a put macro that does
;; type checking and does a put when ok, else NIL when the type is incorrect.
;; If no third body form is present, then these macros assume that
;; (AND (TYPEP ,thing 'type) (PUT-type ,thing)) can be generated.
;; these predicating puts are used by the OR accessor.
(declare (arglist name (width) get-macro put-macro &optional predicating-put-macro))
(when (cdddr get-put-macros)
(error "Too many parameters to define-accessor: ~s" (cdddr get-put-macros)))
(let ((get-macro (or (first get-put-macros) (error "No GET macro form for ~s" name)))
(put-macro (or (second get-put-macros) (error "No PUT macro form for ~s" name))))
`(within-definition (,name define-accessor)
(setf (get ',name 'byte-width) ,(and width (floor width 8)))
(defmacro ,(getify name) ,(car get-macro)
,@(cdr get-macro))
(defmacro ,(putify name) ,(car put-macro)
,@(cdr put-macro))
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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
(let ((predicating-put (third get-put-macros)))
(when predicating-put
`((setf (get ',name 'predicating-put) t)
(defmacro ,(putify name t) ,(car predicating-put)
,@(cdr predicating-put)))))))))
) ;; End eval-when
(define-accessor card32 (32)
((index) `(read-card32 ,index))
((index thing) `(write-card32 ,index ,thing)))
(define-accessor card29 (32)
((index) `(read-card29 ,index))
((index thing) `(write-card29 ,index ,thing)))
(define-accessor card16 (16)
((index) `(read-card16 ,index))
((index thing) `(write-card16 ,index ,thing)))
(define-accessor card8 (8)
((index) `(read-card8 ,index))
((index thing) `(write-card8 ,index ,thing)))
(define-accessor integer (32)
((index) `(read-int32 ,index))
((index thing) `(write-int32 ,index ,thing)))
(define-accessor int16 (16)
((index) `(read-int16 ,index))
((index thing) `(write-int16 ,index ,thing)))
(define-accessor rgb-val (16)
;; Used for color's
((index) `(card16->rgb-val (read-card16 ,index)))
((index thing) `(write-card16 ,index (rgb-val->card16 ,thing))))
(define-accessor angle (16)
;; Used for drawing arcs
((index) `(int16->radians (read-int16 ,index)))
((index thing) `(write-int16 ,index (radians->int16 ,thing))))
(define-accessor bit (0)
;; Like BOOLEAN, but tests bits
;; only used by declare-event (:enter-notify :leave-notify)
((index bit)
`(logbitp ,bit (read-card8 ,index)))
((index thing bit)
(if (zerop bit)
`(write-card8 ,index (if ,thing 1 0))
`(write-card8 ,index (dpb (if ,thing 1 0) (byte 1 ,bit) (read-card8 ,index))))))
(define-accessor boolean (8)
((index)
`(plusp (read-card8 ,index)))
((index thing) `(write-card8 ,index (if ,thing 1 0))))
(define-accessor drawable (32)
((index &optional (buffer '%buffer))
`(lookup-drawable ,buffer (read-card29 ,index)))
((index thing) `(write-card29 ,index (drawable-id ,thing))))
(define-accessor window (32)
((index &optional (buffer '%buffer))
`(lookup-window ,buffer (read-card29 ,index)))
((index thing) `(write-card29 ,index (window-id ,thing))))
(define-accessor pixmap (32)
((index &optional (buffer '%buffer))
`(lookup-pixmap ,buffer (read-card29 ,index)))
((index thing) `(write-card29 ,index (pixmap-id ,thing))))
(define-accessor gcontext (32)
((index &optional (buffer '%buffer))
`(lookup-gcontext ,buffer (read-card29 ,index)))
((index thing) `(write-card29 ,index (gcontext-id ,thing))))
(define-accessor cursor (32)
((index &optional (buffer '%buffer))
`(lookup-cursor ,buffer (read-card29 ,index)))
((index thing) `(write-card29 ,index (cursor-id ,thing))))
(define-accessor colormap (32)
((index &optional (buffer '%buffer))
`(lookup-colormap ,buffer (read-card29 ,index)))
((index thing) `(write-card29 ,index (colormap-id ,thing))))
(define-accessor font (32)
((index &optional (buffer '%buffer))
`(lookup-font ,buffer (read-card29 ,index)))
;; The FONT-ID accessor may make a OpenFont request. Since we don't support recursive
;; with-buffer-request, issue a compile time error, rather than barf at run-time.
((index thing)
(declare (ignore index thing))
(error "FONT-ID must be called OUTSIDE with-buffer-request. Use RESOURCE-ID instead.")))
;; Needed to get and put xatom's in events
(define-accessor keyword (32)
((index &optional (buffer '%buffer))
`(atom-name ,buffer (read-card29 ,index)))
((index thing &key (buffer '%buffer))
`(write-card29 ,index (or (atom-id ,thing ,buffer)
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
(error "CLX implementation error in KEYWORD-PUT")))))
(define-accessor resource-id (32)
((index) `(read-card29 ,index))
((index thing) `(write-card29 ,index ,thing)))
(define-accessor resource-id-or-nil (32)
((index) (let ((id (gensym)))
`(let ((,id (read-card29 ,index)))
(and (plusp ,id) ,id))))
((index thing) `(write-card29 ,index (or ,thing 0))))
(defmacro char-info-get (index)
`(make-char-info
:left-bearing (int16-get ,index)
:right-bearing (int16-get ,(+ index 2))
:width (int16-get ,(+ index 4))
:ascent (int16-get ,(+ index 6))
:descent (int16-get ,(+ index 8))
:attributes (card16-get ,(+ index 10))))
(define-accessor member8 (8)
((index &rest keywords)
(let ((value (gensym)))
`(let ((,value (read-card8 ,index)))
(declare (type (integer 0 (,(length keywords))) ,value))
(type-check ,value '(integer 0 (,(length keywords))))
(svref ',(apply #'vector keywords) ,value))))
((index thing &rest keywords)
`(write-card8 ,index (position ,thing
#+lispm ',keywords ;; Lispm's prefer lists
#-lispm (the simple-vector ',(apply #'vector keywords))
:test #'eq)))
((index thing &rest keywords)
(let ((value (gensym)))
`(let ((,value (position ,thing
#+lispm ',keywords
#-lispm (the simple-vector ',(apply #'vector keywords))
:test #'eq)))
(and ,value (write-card8 ,index ,value))))))
(define-accessor member16 (16)
((index &rest keywords)
(let ((value (gensym)))
`(let ((,value (read-card16 ,index)))
(declare (type (integer 0 (,(length keywords))) ,value))
(type-check ,value '(integer 0 (,(length keywords))))
(svref ',(apply #'vector keywords) ,value))))
((index thing &rest keywords)
`(write-card16 ,index (position ,thing
#+lispm ',keywords ;; Lispm's prefer lists
#-lispm (the simple-vector ',(apply #'vector keywords))
:test #'eq)))
((index thing &rest keywords)
(let ((value (gensym)))
`(let ((,value (position ,thing
#+lispm ',keywords
#-lispm (the simple-vector ',(apply #'vector keywords))
:test #'eq)))
(and ,value (write-card16 ,index ,value))))))
(define-accessor member (32)
((index &rest keywords)
(let ((value (gensym)))
`(let ((,value (read-card29 ,index)))
(declare (type (integer 0 (,(length keywords))) ,value))
(type-check ,value '(integer 0 (,(length keywords))))
(svref ',(apply #'vector keywords) ,value))))
((index thing &rest keywords)
`(write-card29 ,index (position ,thing
#+lispm ',keywords ;; Lispm's prefer lists
#-lispm (the simple-vector ',(apply #'vector keywords))
:test #'eq)))
((index thing &rest keywords)
(if (cdr keywords) ;; IF more than one
(let ((value (gensym)))
`(let ((,value (position ,thing
#+lispm ',keywords
#-lispm (the simple-vector ',(apply #'vector keywords))
:test #'eq)))
(and ,value (write-card29 ,index ,value))))
`(and (eq ,thing ,(car keywords)) (write-card29 ,index 0)))))
(deftype member-vector (vector) `(member ,@(coerce (symbol-value vector) 'list)))
(define-accessor member-vector (32)
((index membership-vector)
`(member-get ,index ,@(coerce (eval membership-vector) 'list)))
((index thing membership-vector)
`(member-put ,index ,thing ,@(coerce (eval membership-vector) 'list)))
((index thing membership-vector)
`(member-put ,index ,thing ,@(coerce (eval membership-vector) 'list))))
(define-accessor member16-vector (16)
((index membership-vector)
`(member16-get ,index ,@(coerce (eval membership-vector) 'list)))
((index thing membership-vector)
`(member16-put ,index ,thing ,@(coerce (eval membership-vector) 'list)))
((index thing membership-vector)
`(member16-put ,index ,thing ,@(coerce (eval membership-vector) 'list))))
(define-accessor member8-vector (8)
((index membership-vector)
`(member8-get ,index ,@(coerce (eval membership-vector) 'list)))
((index thing membership-vector)
`(member8-put ,index ,thing ,@(coerce (eval membership-vector) 'list)))
((index thing membership-vector)
`(member8-put ,index ,thing ,@(coerce (eval membership-vector) 'list))))
(define-accessor boole-constant (32)
;; this isn't member-vector because we need eql instead of eq
((index)
(let ((value (gensym)))
`(let ((,value (read-card29 ,index)))
(declare (type (integer 0 (,(length +boole-vector+))) ,value))
(type-check ,value '(integer 0 (,(length +boole-vector+))))
(svref +boole-vector+ ,value))))
`(write-card29 ,index (position ,thing (the simple-vector +boole-vector+))))
`(let ((,value (position ,thing (the simple-vector +boole-vector+))))
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
(and ,value (write-card29 ,index ,value))))))
(define-accessor null (32)
((index) `(if (zerop (read-card32 ,index)) nil (read-card32 ,index)))
((index value) (declare (ignore value)) `(write-card32 ,index 0)))
(define-accessor pad8 (8)
((index) (declare (ignore index)) nil)
((index value) (declare (ignore index value)) nil))
(define-accessor pad16 (16)
((index) (declare (ignore index)) nil)
((index value) (declare (ignore index value)) nil))
(define-accessor bit-vector256 (256)
;; used for key-maps
;; REAL-INDEX parameter provided so the default index can be over-ridden.
;; This is needed for the :keymap-notify event where the keymap overlaps
;; the window id.
((index &optional (real-index index) data)
`(read-bitvector256 buffer-bbuf ,real-index ,data))
((index map &optional (real-index index) (buffer '%buffer))
`(write-bitvector256 ,buffer (index+ buffer-boffset ,real-index) ,map)))
(define-accessor string (nil)
((length index &key reply-buffer)
`(read-sequence-char
,(or reply-buffer '%reply-buffer) 'string ,length nil nil 0 ,index))
((index string &key buffer (start 0) end header-length appending)
(unless buffer (setq buffer '%buffer))
(unless header-length (setq header-length (lround index)))
(let* ((real-
Loading
Loading full blame...