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;;; -*- Mode: Lisp; Package: Xlib; Log: clx.log -*-
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;; This file contains some of the system dependent code for CLX
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;;; TEXAS INSTRUMENTS INCORPORATED
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;;; AUSTIN, TEXAS 78769
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;;; Copyright (C) 1987 Texas Instruments Incorporated.
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;;; Permission is granted to any individual or institution to use, copy, modify,
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;;; and distribute this software, provided that this complete copyright and
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;;; permission notice is maintained, intact, in all copies and supporting
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;;; Texas Instruments Incorporated provides this software "as is" without
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;;; express or implied warranty.
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(proclaim '(declaration array-register))
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(setf (getf ext:*herald-items* :xlib)
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`(" CLX X Library " ,*version*))
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;;; The size of the output buffer. Must be a multiple of 4.
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(defparameter *output-buffer-size* 8192)
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(zwei:define-indentation event-case (1 1))
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;;; Number of seconds to wait for a reply to a server request
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(defparameter *reply-timeout* nil)
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#-(or clx-overlapping-arrays (not clx-little-endian))
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(defconstant +word-0+ 0)
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(defconstant +word-1+ 1)
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(defconstant +long-0+ 0)
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(defconstant +long-1+ 1)
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(defconstant +long-2+ 2)
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(defconstant +long-3+ 3))
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#-(or clx-overlapping-arrays clx-little-endian)
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(defconstant +word-0+ 1)
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(defconstant +word-1+ 0)
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(defconstant +long-0+ 3)
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(defconstant +long-1+ 2)
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(defconstant +long-2+ 1)
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(defconstant +long-3+ 0))
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;;; Set some compiler-options for often used code
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(eval-when (:compile-toplevel :load-toplevel :execute)
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(defconstant +buffer-speed+ #+clx-debugging 1 #-clx-debugging 3
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"Speed compiler option for buffer code.")
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(defconstant +buffer-safety+ #+clx-debugging 3 #-clx-debugging 0
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"Safety compiler option for buffer code.")
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(defconstant +buffer-debug+ #+clx-debugging 2 #-clx-debugging 1
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"Debug compiler option for buffer code>")
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(defun declare-bufmac ()
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(speed ,+buffer-speed+)
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(safety ,+buffer-safety+)
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(debug ,+buffer-debug+))))
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;; It's my impression that in lucid there's some way to make a
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;; declaration called fast-entry or something that causes a function
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;; to not do some checking on args. Sadly, we have no lucid manuals
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;; here. If such a declaration is available, it would be a good
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;; idea to make it here when +buffer-speed+ is 3 and +buffer-safety+
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(defun declare-buffun ()
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(speed ,+buffer-speed+)
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(safety ,+buffer-safety+)
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(debug ,+buffer-debug+)))))
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(declaim (inline card8->int8 int8->card8
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card16->int16 int16->card16
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card32->int32 int32->card32))
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(defun card8->int8 (x)
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(declare (type card8 x))
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(declare (clx-values int8))
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(the int8 (if (logbitp 7 x)
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(the int8 (- x #x100))
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(defun int8->card8 (x)
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(declare (type int8 x))
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(declare (clx-values card8))
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(the card8 (ldb (byte 8 0) x)))
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(defun card16->int16 (x)
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(declare (type card16 x))
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(declare (clx-values int16))
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(the int16 (if (logbitp 15 x)
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(the int16 (- x #x10000))
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(defun int16->card16 (x)
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(declare (type int16 x))
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(declare (clx-values card16))
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(the card16 (ldb (byte 16 0) x)))
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(defun card32->int32 (x)
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(declare (type card32 x))
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(declare (clx-values int32))
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(the int32 (if (logbitp 31 x)
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(the int32 (- x #x100000000))
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(defun int32->card32 (x)
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(declare (type int32 x))
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(declare (clx-values card32))
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(the card32 (ldb (byte 32 0) x)))
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(defun card8->int8 (x)
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(declare lt:(side-effects simple reducible))
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(if (logbitp 7 x) (- x #x100) x))
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(defun int8->card8 (x)
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(declare lt:(side-effects simple reducible))
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(defun card16->int16 (x)
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(declare lt:(side-effects simple reducible))
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(if (logbitp 15 x) (- x #x10000) x))
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(defun int16->card16 (x)
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(declare lt:(side-effects simple reducible))
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(defun card32->int32 (x)
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(declare lt:(side-effects simple reducible))
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(sys:%logldb (byte 32 0) x))
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(defun int32->card32 (x)
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(declare lt:(side-effects simple reducible))
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(declaim (inline aref-card8 aset-card8 aref-int8 aset-int8))
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#-(or Genera lcl3.0 excl)
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(defun aref-card8 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values card8))
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(the card8 (aref a i)))
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(defun aset-card8 (v a i)
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(declare (type card8 v)
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(type buffer-bytes a)
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(type array-index i))
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(defun aref-int8 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values int8))
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(card8->int8 (aref a i)))
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(defun aset-int8 (v a i)
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(declare (type int8 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (aref a i) (int8->card8 v)))
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(defun aref-card8 (a i)
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(defun aset-card8 (v a i)
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(defun aref-int8 (a i)
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(card8->int8 (aref a i)))
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(defun aset-int8 (v a i)
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(zl:aset (int8->card8 v) a i))
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#+(or excl lcl3.0 clx-overlapping-arrays)
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(declaim (inline aref-card16 aref-int16 aref-card32 aref-int32 aref-card29
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aset-card16 aset-int16 aset-card32 aset-int32 aset-card29))
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#+(and clx-overlapping-arrays Genera)
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(defun aref-card16 (a i)
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(defun aset-card16 (v a i)
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(defun aref-int16 (a i)
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(card16->int16 (aref a i)))
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(defun aset-int16 (v a i)
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(zl:aset (int16->card16 v) a i)
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(defun aref-card32 (a i)
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(int32->card32 (aref a i)))
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(defun aset-card32 (v a i)
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(zl:aset (card32->int32 v) a i))
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(defun aref-int32 (a i) (aref a i))
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(defun aset-int32 (v a i)
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(defun aref-card29 (a i)
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(defun aset-card29 (v a i)
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#+(and clx-overlapping-arrays (not Genera))
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(defun aref-card16 (a i)
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(defun aset-card16 (v a i)
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(defun aref-int16 (a i)
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(card16->int16 (aref a i)))
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(defun aset-int16 (v a i)
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(setf (aref a i) (int16->card16 v))
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(defun aref-card32 (a i)
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(defun aset-card32 (v a i)
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(defun aref-int32 (a i)
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(card32->int32 (aref a i)))
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(defun aset-int32 (v a i)
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(setf (aref a i) (int32->card32 v))
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(defun aref-card29 (a i)
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(defun aset-card29 (v a i)
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(defun aref-card8 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values card8))
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(the card8 (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aset-card8 (v a i)
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(declare (type card8 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aref-int8 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values int8))
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(the int8 (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aset-int8 (v a i)
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(declare (type int8 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aref-card16 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values card16))
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(the card16 (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aset-card16 (v a i)
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(declare (type card16 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aref-int16 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values int16))
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(the int16 (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aset-int16 (v a i)
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(declare (type int16 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aref-card32 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values card32))
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(the card32 (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aset-card32 (v a i)
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(declare (type card32 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aref-int32 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values int32))
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(the int32 (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aset-int32 (v a i)
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(declare (type int32 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aref-card29 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values card29))
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(the card29 (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aset-card29 (v a i)
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(declare (type card29 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (sys:memref a #.(comp::mdparam 'comp::md-svector-data0-adj) i
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(defun aref-card8 (a i)
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(declare (type buffer-bytes a)
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(the card8 (lucid::%svref-8bit a i)))
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(defun aset-card8 (v a i)
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(declare (type card8 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (lucid::%svref-8bit a i) v))
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(defun aref-int8 (a i)
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(declare (type buffer-bytes a)
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(the int8 (lucid::%svref-signed-8bit a i)))
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(defun aset-int8 (v a i)
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(declare (type int8 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (lucid::%svref-signed-8bit a i) v))
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(defun aref-card16 (a i)
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(declare (type buffer-bytes a)
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(the card16 (lucid::%svref-16bit a (index-ash i -1))))
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(defun aset-card16 (v a i)
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(declare (type card16 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (lucid::%svref-16bit a (index-ash i -1)) v))
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(defun aref-int16 (a i)
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(declare (type buffer-bytes a)
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(the int16 (lucid::%svref-signed-16bit a (index-ash i -1))))
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(defun aset-int16 (v a i)
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(declare (type int16 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (lucid::%svref-signed-16bit a (index-ash i -1)) v))
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(defun aref-card32 (a i)
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(declare (type buffer-bytes a)
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(the card32 (lucid::%svref-32bit a (index-ash i -2))))
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(defun aset-card32 (v a i)
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(declare (type card32 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (lucid::%svref-32bit a (index-ash i -2)) v))
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(defun aref-int32 (a i)
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(declare (type buffer-bytes a)
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(the int32 (lucid::%svref-signed-32bit a (index-ash i -2))))
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(defun aset-int32 (v a i)
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(declare (type int32 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (lucid::%svref-signed-32bit a (index-ash i -2)) v))
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(defun aref-card29 (a i)
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(declare (type buffer-bytes a)
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(the card29 (lucid::%svref-32bit a (index-ash i -2))))
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(defun aset-card29 (v a i)
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(declare (type card29 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (lucid::%svref-32bit a (index-ash i -2)) v))
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#-(or excl lcl3.0 clx-overlapping-arrays)
518
(defun aref-card16 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values card16))
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(ash (the card8 (aref a (index+ i +word-1+))) 8))
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(aref a (index+ i +word-0+))))))
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(defun aset-card16 (v a i)
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(declare (type card16 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (aref a (index+ i +word-1+)) (the card8 (ldb (byte 8 8) v))
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(aref a (index+ i +word-0+)) (the card8 (ldb (byte 8 0) v)))
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(defun aref-int16 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
541
(declare (clx-values int16))
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(ash (the int8 (aref-int8 a (index+ i +word-1+))) 8))
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(aref a (index+ i +word-0+))))))
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(defun aset-int16 (v a i)
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(declare (type int16 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (aref a (index+ i +word-1+)) (the card8 (ldb (byte 8 8) v))
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(aref a (index+ i +word-0+)) (the card8 (ldb (byte 8 0) v)))
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(defun aref-card32 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values card32))
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(ash (the card8 (aref a (index+ i +long-3+))) 24))
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(ash (the card8 (aref a (index+ i +long-2+))) 16))
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(ash (the card8 (aref a (index+ i +long-1+))) 8))
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(aref a (index+ i +long-0+))))))
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(defun aset-card32 (v a i)
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(declare (type card32 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (aref a (index+ i +long-3+)) (the card8 (ldb (byte 8 24) v))
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(aref a (index+ i +long-2+)) (the card8 (ldb (byte 8 16) v))
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(aref a (index+ i +long-1+)) (the card8 (ldb (byte 8 8) v))
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(aref a (index+ i +long-0+)) (the card8 (ldb (byte 8 0) v)))
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(defun aref-int32 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values int32))
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(ash (the int8 (aref-int8 a (index+ i +long-3+))) 24))
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(ash (the card8 (aref a (index+ i +long-2+))) 16))
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(ash (the card8 (aref a (index+ i +long-1+))) 8))
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(aref a (index+ i +long-0+))))))
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(defun aset-int32 (v a i)
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(declare (type int32 v)
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(type buffer-bytes a)
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(type array-index i))
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(setf (aref a (index+ i +long-3+)) (the card8 (ldb (byte 8 24) v))
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(aref a (index+ i +long-2+)) (the card8 (ldb (byte 8 16) v))
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(aref a (index+ i +long-1+)) (the card8 (ldb (byte 8 8) v))
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(aref a (index+ i +long-0+)) (the card8 (ldb (byte 8 0) v)))
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(defun aref-card29 (a i)
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(declare (type buffer-bytes a)
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(type array-index i))
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(declare (clx-values card29))
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(ash (the card8 (aref a (index+ i +long-3+))) 24))
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(ash (the card8 (aref a (index+ i +long-2+))) 16))
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(ash (the card8 (aref a (index+ i +long-1+))) 8))
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(aref a (index+ i +long-0+))))))
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(defun aset-card29 (v a i)
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(declare (type card29 v)
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(type buffer-bytes a)
628
(type array-index i))
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(setf (aref a (index+ i +long-3+)) (the card8 (ldb (byte 8 24) v))
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(aref a (index+ i +long-2+)) (the card8 (ldb (byte 8 16) v))
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(aref a (index+ i +long-1+)) (the card8 (ldb (byte 8 8) v))
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(aref a (index+ i +long-0+)) (the card8 (ldb (byte 8 0) v)))
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(defsetf aref-card8 (a i) (v)
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`(aset-card8 ,v ,a ,i))
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(defsetf aref-int8 (a i) (v)
642
`(aset-int8 ,v ,a ,i))
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(defsetf aref-card16 (a i) (v)
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`(aset-card16 ,v ,a ,i))
647
(defsetf aref-int16 (a i) (v)
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`(aset-int16 ,v ,a ,i))
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(defsetf aref-card32 (a i) (v)
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`(aset-card32 ,v ,a ,i))
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(defsetf aref-int32 (a i) (v)
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`(aset-int32 ,v ,a ,i))
656
(defsetf aref-card29 (a i) (v)
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`(aset-card29 ,v ,a ,i))
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;;; Other random conversions
661
(defun rgb-val->card16 (value)
662
;; Short floats are good enough
663
(declare (type rgb-val value))
664
(declare (clx-values card16))
666
;; Convert VALUE from float to card16
667
(the card16 (values (round (the rgb-val value) #.(/ 1.0s0 #xffff)))))
669
(defun card16->rgb-val (value)
670
;; Short floats are good enough
671
(declare (type card16 value))
672
(declare (clx-values short-float))
674
;; Convert VALUE from card16 to float
675
(the short-float (* (the card16 value) #.(/ 1.0s0 #xffff))))
677
(defun radians->int16 (value)
678
;; Short floats are good enough
679
(declare (type angle value))
680
(declare (clx-values int16))
682
(the int16 (values (round (the angle value) #.(float (/ pi 180.0s0 64.0s0) 0.0s0)))))
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(defun int16->radians (value)
685
;; Short floats are good enough
686
(declare (type int16 value))
687
(declare (clx-values short-float))
689
(the short-float (* (the int16 value) #.(coerce (/ pi 180.0 64.0) 'short-float))))
692
#+(or cmu sbcl) (progn
694
;;; This overrides the (probably incorrect) definition in clx.lisp. Since PI
695
;;; is irrational, there can't be a precise rational representation. In
696
;;; particular, the different float approximations will always be /=. This
697
;;; causes problems with type checking, because people might compute an
698
;;; argument in any precision. What we do is discard all the excess precision
699
;;; in the value, and see if the protocol encoding falls in the desired range
700
;;; (64'ths of a degree.)
702
(deftype angle () '(satisfies anglep))
706
(<= (* -360 64) (radians->int16 x) (* 360 64))))
711
;;-----------------------------------------------------------------------------
712
;; Character transformation
713
;;-----------------------------------------------------------------------------
716
;;; This stuff transforms chars to ascii codes in card8's and back.
717
;;; You might have to hack it a little to get it to work for your machine.
719
(declaim (inline char->card8 card8->char))
721
(macrolet ((char-translators ()
724
;; The normal ascii codes for the control characters.
733
;; One the lispm, #\Newline is #\Return, but we'd really like
734
;; #\Newline to translate to ascii code 10, so we swap the
735
;; Ascii codes for #\Return and #\Linefeed. We also provide
736
;; mappings from the counterparts of these control characters
737
;; so that the character mapping from the lisp machine
738
;; character set to ascii is invertible.
740
,@`((#\Return . 10) (,(code-char 10) . ,(char-code #\Return))
741
(#\Linefeed . 13) (,(code-char 13) . ,(char-code #\Linefeed))
742
(#\Rubout . 127) (,(code-char 127) . ,(char-code #\Rubout))
743
(#\Page . 12) (,(code-char 12) . ,(char-code #\Page))
744
(#\Tab . 9) (,(code-char 9) . ,(char-code #\Tab))
745
(#\Backspace . 8) (,(code-char 8) . ,(char-code #\Backspace))
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(#\Newline . 10) (,(code-char 10) . ,(char-code #\Newline))
747
(#\Space . 32) (,(code-char 32) . ,(char-code #\Space)))
748
;; The rest of the common lisp charater set with the normal
749
;; ascii codes for them.
750
(#\! . 33) (#\" . 34) (#\# . 35) (#\$ . 36)
751
(#\% . 37) (#\& . 38) (#\' . 39) (#\( . 40)
752
(#\) . 41) (#\* . 42) (#\+ . 43) (#\, . 44)
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(#\- . 45) (#\. . 46) (#\/ . 47) (#\0 . 48)
754
(#\1 . 49) (#\2 . 50) (#\3 . 51) (#\4 . 52)
755
(#\5 . 53) (#\6 . 54) (#\7 . 55) (#\8 . 56)
756
(#\9 . 57) (#\: . 58) (#\; . 59) (#\< . 60)
757
(#\= . 61) (#\> . 62) (#\? . 63) (#\@ . 64)
758
(#\A . 65) (#\B . 66) (#\C . 67) (#\D . 68)
759
(#\E . 69) (#\F . 70) (#\G . 71) (#\H . 72)
760
(#\I . 73) (#\J . 74) (#\K . 75) (#\L . 76)
761
(#\M . 77) (#\N . 78) (#\O . 79) (#\P . 80)
762
(#\Q . 81) (#\R . 82) (#\S . 83) (#\T . 84)
763
(#\U . 85) (#\V . 86) (#\W . 87) (#\X . 88)
764
(#\Y . 89) (#\Z . 90) (#\[ . 91) (#\\ . 92)
765
(#\] . 93) (#\^ . 94) (#\_ . 95) (#\` . 96)
766
(#\a . 97) (#\b . 98) (#\c . 99) (#\d . 100)
767
(#\e . 101) (#\f . 102) (#\g . 103) (#\h . 104)
768
(#\i . 105) (#\j . 106) (#\k . 107) (#\l . 108)
769
(#\m . 109) (#\n . 110) (#\o . 111) (#\p . 112)
770
(#\q . 113) (#\r . 114) (#\s . 115) (#\t . 116)
771
(#\u . 117) (#\v . 118) (#\w . 119) (#\x . 120)
772
(#\y . 121) (#\z . 122) (#\{ . 123) (#\| . 124)
773
(#\} . 125) (#\~ . 126))))
774
(cond ((dolist (pair alist nil)
775
(when (not (= (char-code (car pair)) (cdr pair)))
778
(defconstant *char-to-card8-translation-table*
779
',(let ((array (make-array
780
(let ((max-char-code 255))
784
(char-code (car pair)))))
786
:element-type 'card8)))
787
(dotimes (i (length array))
788
(setf (aref array i) (mod i 256)))
790
(setf (aref array (char-code (car pair)))
793
(defconstant *card8-to-char-translation-table*
794
',(let ((array (make-array 256)))
795
(dotimes (i (length array))
796
(setf (aref array i) (code-char i)))
798
(setf (aref array (cdr pair)) (car pair)))
802
(defun char->card8 (char)
803
(declare (type base-char char))
805
(the card8 (aref (the (simple-array card8 (*))
806
*char-to-card8-translation-table*)
807
(the array-index (char-code char)))))
808
(defun card8->char (card8)
809
(declare (type card8 card8))
812
(or (aref (the simple-vector *card8-to-char-translation-table*)
814
(error "Invalid CHAR code ~D." card8))))
818
(defun char->card8 (char)
819
(declare lt:(side-effects reader reducible))
820
(aref *char-to-card8-translation-table* (char-code char)))
821
(defun card8->char (card8)
822
(declare lt:(side-effects reader reducible))
823
(aref *card8-to-char-translation-table* card8))
827
(unless (= i (char->card8 (card8->char i)))
828
(warn "The card8->char mapping is not invertible through char->card8. Info:~%~S"
831
(char->card8 (card8->char i))))
834
(dotimes (i (length *char-to-card8-translation-table*))
835
(let ((char (code-char i)))
836
(unless (eql char (card8->char (char->card8 char)))
837
(warn "The char->card8 mapping is not invertible through card8->char. Info:~%~S"
840
(card8->char (char->card8 char))))
844
(defun char->card8 (char)
845
(declare (type base-char char))
847
(the card8 (char-code char)))
848
(defun card8->char (card8)
849
(declare (type card8 card8))
851
(the base-char (code-char card8)))
855
;;-----------------------------------------------------------------------------
858
;; Common-Lisp doesn't provide process locking primitives, so we define
859
;; our own here, based on Zetalisp primitives. Holding-Lock is very
860
;; similar to with-lock on The TI Explorer, and a little more efficient
861
;; than with-process-lock on a Symbolics.
862
;;-----------------------------------------------------------------------------
864
;;; MAKE-PROCESS-LOCK: Creating a process lock.
866
#-(or LispM excl Minima sbcl (and cmu mp))
867
(defun make-process-lock (name)
868
(declare (ignore name))
872
(defun make-process-lock (name)
873
(mp:make-process-lock :name name))
875
#+(and LispM (not Genera))
876
(defun make-process-lock (name)
880
(defun make-process-lock (name)
881
(process:make-lock name :flavor 'clx-lock))
884
(defun make-process-lock (name)
885
(minima:make-lock name :recursive t))
888
(defun make-process-lock (name)
892
(defun make-process-lock (name)
893
(sb-thread:make-mutex :name name))
895
;;; HOLDING-LOCK: Execute a body of code with a lock held.
897
;;; The holding-lock macro takes a timeout keyword argument. EVENT-LISTEN
898
;;; passes its timeout to the holding-lock macro, so any timeout you want to
899
;;; work for event-listen you should do for holding-lock.
901
;; If you're not sharing DISPLAY objects within a multi-processing
902
;; shared-memory environment, this is sufficient
903
#-(or lispm excl lcl3.0 Minima sbcl (and CMU mp) )
904
(defmacro holding-lock ((locator display &optional whostate &key timeout) &body body)
905
(declare (ignore locator display whostate timeout))
908
;;; HOLDING-LOCK for CMU Common Lisp.
910
;;; We are not multi-processing, but we use this macro to try to protect
911
;;; against re-entering request functions. This can happen if an interrupt
912
;;; occurs and the handler attempts to use X over the same display connection.
913
;;; This can happen if the GC hooks are used to notify the user over the same
914
;;; display connection. We inhibit GC notifications since display of them
915
;;; could cause recursive entry into CLX.
918
(defmacro holding-lock ((locator display &optional whostate &key timeout)
920
`(let #+cmu((ext:*gc-verbose* nil)
921
(ext:*gc-inhibit-hook* nil)
922
(ext:*before-gc-hooks* nil)
923
(ext:*after-gc-hooks* nil))
925
,locator ,display ,whostate ,timeout
926
(system:without-interrupts (progn ,@body))))
928
;;; HOLDING-LOCK for CMU Common Lisp with multi-processes.
931
(defmacro holding-lock ((lock display &optional (whostate "CLX wait")
934
(declare (ignore display))
935
`(mp:with-lock-held (,lock ,whostate ,@(and timeout `(:timeout ,timeout)))
939
(defmacro holding-lock ((lock display &optional (whostate "CLX wait")
942
;; This macro is used by WITH-DISPLAY, which claims to be callable
943
;; recursively. So, had better use a recursive lock.
945
;; FIXME: This is hideously ugly. If WITH-TIMEOUT handled NIL
947
(declare (ignore display whostate))
951
(sb-ext:with-timeout ,timeout
952
(sb-thread:with-recursive-lock (,lock)
954
(sb-ext:timeout () nil))
955
(sb-thread:with-recursive-lock (,lock)
957
`(sb-thread:with-recursive-lock (,lock)
961
(defmacro holding-lock ((locator display &optional whostate &key timeout)
963
(declare (ignore whostate))
964
`(process:with-lock (,locator :timeout ,timeout)
965
(let ((.debug-io. (buffer-debug-io ,display)))
966
(scl:let-if .debug-io. ((*debug-io* .debug-io.))
969
#+(and lispm (not Genera))
970
(defmacro holding-lock ((locator display &optional whostate &key timeout)
972
(declare (ignore display))
973
;; This macro is for use in a multi-process environment.
974
(let ((lock (gensym))
977
`(let* ((,lock (zl:locf (svref ,locator 0)))
978
(,have-lock (eq (car ,lock) sys:current-process))
981
(when (cond (,have-lock)
982
((#+explorer si:%store-conditional
983
#-explorer sys:store-conditional
984
,lock nil sys:current-process))
986
(sys:process-lock ,lock nil ,(or whostate "CLX Lock")))
987
((sys:process-wait-with-timeout
988
,(or whostate "CLX Lock") (round (* ,timeo 60.))
989
#'(lambda (lock process)
990
(#+explorer si:%store-conditional
991
#-explorer sys:store-conditional
993
,lock sys:current-process)))
996
(#+explorer si:%store-conditional
997
#-explorer sys:store-conditional
998
,lock sys:current-process nil))))))
1000
;; Lucid has a process locking mechanism as well under release 3.0
1002
(defmacro holding-lock ((locator display &optional whostate &key timeout)
1004
(declare (ignore display))
1006
;; Hair to support timeout.
1007
`(let ((.have-lock. (eq ,locator lcl:*current-process*))
1008
(.timeout. ,timeout))
1010
(when (cond (.have-lock.)
1011
((conditional-store ,locator nil lcl:*current-process*))
1013
(lcl:process-lock ,locator)
1015
((lcl:process-wait-with-timeout ,whostate .timeout.
1017
(conditional-store ,locator nil lcl:*current-process*))))
1018
;; abort the PROCESS-UNLOCK if actually timing out
1020
(setf .have-lock. :abort)
1024
(lcl:process-unlock ,locator))))
1025
`(lcl:with-process-lock (,locator)
1030
(defmacro holding-lock ((locator display &optional whostate &key timeout)
1032
(declare (ignore display))
1033
`(let (.hl-lock. .hl-obtained-lock. .hl-curproc.)
1036
(when mp::*scheduler-stack-group* ; fast test for scheduler running
1037
(setq .hl-lock. ,locator
1038
.hl-curproc. mp::*current-process*)
1039
(when (and .hl-curproc. ; nil if in process-wait fun
1040
(not (eq (mp::process-lock-locker .hl-lock.)
1042
;; Then we need to grab the lock.
1044
`(if (not (mp::process-lock .hl-lock. .hl-curproc.
1045
,whostate ,timeout))
1046
(return-from .hl-doit. nil))
1047
`(mp::process-lock .hl-lock. .hl-curproc.
1048
,@(when whostate `(,whostate))))
1049
;; There is an apparent race condition here. However, there is
1050
;; no actual race condition -- our implementation of mp:process-
1051
;; lock guarantees that the lock will still be held when it
1052
;; returns, and no interrupt can happen between that and the
1053
;; execution of the next form. -- jdi 2/27/91
1054
(setq .hl-obtained-lock. t)))
1056
(if (and .hl-obtained-lock.
1057
;; Note -- next form added to allow error handler inside
1058
;; body to unlock the lock prematurely if it knows that
1059
;; the current process cannot possibly continue but will
1060
;; throw out (or is it throw up?).
1061
(eq (mp::process-lock-locker .hl-lock.) .hl-curproc.))
1062
(mp::process-unlock .hl-lock. .hl-curproc.)))))
1065
(defmacro holding-lock ((locator display &optional whostate &key timeout) &body body)
1066
`(holding-lock-1 #'(lambda () ,@body) ,locator ,display
1067
,@(and whostate `(:whostate ,whostate))
1068
,@(and timeout `(:timeout ,timeout))))
1071
(defun holding-lock-1 (continuation lock display &key (whostate "Lock") timeout)
1072
(declare (dynamic-extent continuation))
1073
(declare (ignore display whostate timeout))
1074
(minima:with-lock (lock)
1075
(funcall continuation)))
1079
;;; If you can inhibit asynchronous keyboard aborts inside the body of this
1080
;;; macro, then it is a good idea to do this. This macro is wrapped around
1081
;;; request writing and reply reading to ensure that requests are atomically
1082
;;; written and replies are atomically read from the stream.
1084
#-(or Genera excl lcl3.0)
1085
(defmacro without-aborts (&body body)
1089
(defmacro without-aborts (&body body)
1090
`(sys:without-aborts (clx "CLX is in the middle of an operation that should be atomic.")
1094
(defmacro without-aborts (&body body)
1095
`(without-interrupts ,@body))
1098
(defmacro without-aborts (&body body)
1099
`(lcl:with-interruptions-inhibited ,@body))
1101
;;; PROCESS-BLOCK: Wait until a given predicate returns a non-NIL value.
1102
;;; Caller guarantees that PROCESS-WAKEUP will be called after the predicate's
1105
#-(or lispm excl lcl3.0 Minima (and sb-thread sbcl) (and cmu mp))
1106
(defun process-block (whostate predicate &rest predicate-args)
1107
(declare (ignore whostate))
1108
(or (apply predicate predicate-args)
1109
(error "Program tried to wait with no scheduler.")))
1112
(defun process-block (whostate predicate &rest predicate-args)
1113
(declare (type function predicate)
1114
#+clx-ansi-common-lisp
1115
(dynamic-extent predicate)
1116
#-clx-ansi-common-lisp
1117
(sys:downward-funarg predicate))
1118
(apply #'process:block-process whostate predicate predicate-args))
1120
#+(and lispm (not Genera))
1121
(defun process-block (whostate predicate &rest predicate-args)
1122
(declare (type function predicate)
1123
#+clx-ansi-common-lisp
1124
(dynamic-extent predicate)
1125
#-clx-ansi-common-lisp
1126
(sys:downward-funarg predicate))
1127
(apply #'global:process-wait whostate predicate predicate-args))
1130
(defun process-block (whostate predicate &rest predicate-args)
1131
(if mp::*scheduler-stack-group*
1132
(apply #'mp::process-wait whostate predicate predicate-args)
1133
(or (apply predicate predicate-args)
1134
(error "Program tried to wait with no scheduler."))))
1137
(defun process-block (whostate predicate &rest predicate-args)
1138
(declare (dynamic-extent predicate-args))
1139
(apply #'lcl:process-wait whostate predicate predicate-args))
1142
(defun process-block (whostate predicate &rest predicate-args)
1143
(declare (type function predicate)
1144
(dynamic-extent predicate))
1145
(apply #'minima:process-wait whostate predicate predicate-args))
1148
(defun process-block (whostate predicate &rest predicate-args)
1149
(declare (type function predicate))
1150
(mp:process-wait whostate #'(lambda ()
1151
(apply predicate predicate-args))))
1153
#+(and sbcl sb-thread)
1155
(declaim (inline yield))
1157
(declare (optimize speed (safety 0)))
1158
(sb-alien:alien-funcall
1159
(sb-alien:extern-alien "sched_yield" (function sb-alien:int)))
1162
#+(and sbcl sb-thread)
1163
(defun process-block (whostate predicate &rest predicate-args)
1164
(declare (ignore whostate))
1165
(declare (type function predicate))
1167
(when (apply predicate predicate-args)
1171
;;; FIXME: the below implementation for threaded PROCESS-BLOCK using
1172
;;; queues and condition variables might seem better, but in fact it
1173
;;; turns out to make performance extremely suboptimal, at least as
1174
;;; measured by McCLIM on linux 2.4 kernels. -- CSR, 2003-11-10
1176
(defvar *process-conditions* (make-hash-table))
1179
(defun process-block (whostate predicate &rest predicate-args)
1180
(declare (ignore whostate))
1181
(declare (type function predicate))
1182
(let* ((pid (sb-thread:current-thread-id))
1183
(last (gethash pid *process-conditions*))
1186
(sb-thread:make-mutex :name (format nil "lock ~A" pid))))
1189
(sb-thread:make-waitqueue :name (format nil "queue ~A" pid)))))
1191
(setf (gethash pid *process-conditions*) (cons lock queue)))
1192
(sb-thread:with-mutex (lock)
1194
(when (apply predicate predicate-args) (return))
1196
(sb-ext:with-timeout .5
1197
(sb-thread:condition-wait queue lock))
1199
(format *trace-output* "thread ~A, process-block timed out~%"
1200
(sb-thread:current-thread-id) )))))))
1202
;;; PROCESS-WAKEUP: Check some other process' wait function.
1204
(declaim (inline process-wakeup))
1206
#-(or excl Genera Minima (and sbcl sb-thread) (and cmu mp))
1207
(defun process-wakeup (process)
1208
(declare (ignore process))
1212
(defun process-wakeup (process)
1213
(let ((curproc mp::*current-process*))
1214
(when (and curproc process)
1215
(unless (mp::process-p curproc)
1216
(error "~s is not a process" curproc))
1217
(unless (mp::process-p process)
1218
(error "~s is not a process" process))
1219
(if (> (mp::process-priority process) (mp::process-priority curproc))
1220
(mp::process-allow-schedule process)))))
1223
(defun process-wakeup (process)
1224
(process:wakeup process))
1227
(defun process-wakeup (process)
1229
(minima:process-wakeup process)))
1232
(defun process-wakeup (process)
1233
(declare (ignore process))
1236
#+(and sb-thread sbcl)
1237
(defun process-wakeup (process)
1238
(declare (ignore process))
1241
(defun process-wakeup (process)
1242
(declare (ignore process))
1243
(destructuring-bind (lock . queue)
1244
(gethash (sb-thread:current-thread-id) *process-conditions*
1246
(declare (ignore lock))
1248
(sb-thread:condition-notify queue))))
1251
;;; CURRENT-PROCESS: Return the current process object for input locking and
1252
;;; for calling PROCESS-WAKEUP.
1254
(declaim (inline current-process))
1256
;;; Default return NIL, which is acceptable even if there is a scheduler.
1258
#-(or lispm excl lcl3.0 sbcl Minima (and cmu mp))
1259
(defun current-process ()
1263
(defun current-process ()
1264
sys:current-process)
1267
(defun current-process ()
1268
(and mp::*scheduler-stack-group*
1269
mp::*current-process*))
1272
(defun current-process ()
1273
lcl:*current-process*)
1276
(defun current-process ()
1277
(minima:current-process))
1280
(defun current-process ()
1281
mp:*current-process*)
1284
(defun current-process ()
1285
(sb-thread:current-thread-id))
1287
;;; WITHOUT-INTERRUPTS -- provide for atomic operations.
1289
#-(or lispm excl lcl3.0 Minima cmu)
1290
(defmacro without-interrupts (&body body)
1293
#+(and lispm (not Genera))
1294
(defmacro without-interrupts (&body body)
1295
`(sys:without-interrupts ,@body))
1298
(defmacro without-interrupts (&body body)
1299
`(process:with-no-other-processes ,@body))
1302
(defmacro without-interrupts (&body body)
1303
`(lcl:with-scheduling-inhibited ,@body))
1306
(defmacro without-interrupts (&body body)
1307
`(minima:with-no-other-processes ,@body))
1310
(defmacro without-interrupts (&body body)
1311
`(system:without-interrupts ,@body))
1314
(defvar *without-interrupts-sic-lock*
1315
(sb-thread:make-mutex :name "lock simulating *without-interrupts*"))
1317
(defmacro without-interrupts (&body body)
1318
`(sb-thread:with-recursive-lock (*without-interrupts-sic-lock*)
1321
;;; CONDITIONAL-STORE:
1323
;; This should use GET-SETF-METHOD to avoid evaluating subforms multiple times.
1324
;; It doesn't because CLtL doesn't pass the environment to GET-SETF-METHOD.
1326
(defmacro conditional-store (place old-value new-value)
1327
`(without-interrupts
1328
(cond ((eq ,place ,old-value)
1329
(setf ,place ,new-value)
1332
;;; we only use this queue for the spinlock word, in fact
1334
(defvar *conditional-store-queue*
1335
(sb-thread:make-waitqueue :name "conditional store"))
1338
(defmacro conditional-store (place old-value new-value)
1339
`(sb-thread::with-spinlock (*conditional-store-queue*)
1340
(cond ((eq ,place ,old-value)
1341
(setf ,place ,new-value)
1344
;;;----------------------------------------------------------------------------
1345
;;; IO Error Recovery
1346
;;; All I/O operations are done within a WRAP-BUF-OUTPUT macro.
1347
;;; It prevents multiple mindless errors when the network craters.
1349
;;;----------------------------------------------------------------------------
1352
(defmacro wrap-buf-output ((buffer) &body body)
1353
;; Error recovery wrapper
1354
`(unless (buffer-dead ,buffer)
1358
(defmacro wrap-buf-output ((buffer) &body body)
1359
;; Error recovery wrapper
1360
`(let ((.buffer. ,buffer))
1361
(unless (buffer-dead .buffer.)
1363
(((sys:network-error)
1365
(scl:condition-case ()
1366
(funcall (buffer-close-function .buffer.) .buffer. :abort t)
1367
(sys:network-error))
1368
(setf (buffer-dead .buffer.) error)
1369
(setf (buffer-output-stream .buffer.) nil)
1370
(setf (buffer-input-stream .buffer.) nil)
1375
(defmacro wrap-buf-input ((buffer) &body body)
1376
(declare (ignore buffer))
1377
;; Error recovery wrapper
1381
(defmacro wrap-buf-input ((buffer) &body body)
1382
;; Error recovery wrapper
1383
`(let ((.buffer. ,buffer))
1385
(((sys:network-error)
1387
(scl:condition-case ()
1388
(funcall (buffer-close-function .buffer.) .buffer. :abort t)
1389
(sys:network-error))
1390
(setf (buffer-dead .buffer.) error)
1391
(setf (buffer-output-stream .buffer.) nil)
1392
(setf (buffer-input-stream .buffer.) nil)
1397
;;;----------------------------------------------------------------------------
1398
;;; System dependent IO primitives
1399
;;; Functions for opening, reading writing forcing-output and closing
1400
;;; the stream to the server.
1401
;;;----------------------------------------------------------------------------
1403
;;; OPEN-X-STREAM - create a stream for communicating to the appropriate X
1406
#-(or explorer Genera lucid kcl ibcl excl Minima CMU sbcl ecl)
1407
(defun open-x-stream (host display protocol)
1408
host display protocol ;; unused
1409
(error "OPEN-X-STREAM not implemented yet."))
1413
;;; TCP and DNA are both layered products, so try to work with either one.
1416
(when (fboundp 'tcp:add-tcp-port-for-protocol)
1417
(tcp:add-tcp-port-for-protocol :x-window-system 6000))
1420
(when (fboundp 'dna:add-dna-contact-id-for-protocol)
1421
(dna:add-dna-contact-id-for-protocol :x-window-system "X$X0"))
1424
(net:define-protocol :x-window-system (:x-window-system :byte-stream)
1425
(:invoke-with-stream ((stream :characters nil :ascii-translation nil))
1429
(eval-when (compile)
1430
(compiler:function-defined 'tcp:open-tcp-stream)
1431
(compiler:function-defined 'dna:open-dna-bidirectional-stream))
1434
(defun open-x-stream (host display protocol)
1435
(let ((host (net:parse-host host)))
1436
(if (or protocol (plusp display))
1437
;; The protocol was specified or the display isn't 0, so we
1438
;; can't use the Generic Network System. If the protocol was
1439
;; specified, then use that protocol, otherwise, blindly use
1443
(tcp:open-tcp-stream
1444
host (+ *x-tcp-port* display) nil
1447
:ascii-translation nil))
1449
(dna:open-dna-bidirectional-stream
1450
host (format nil "X$X~D" display)
1452
:ascii-translation nil)))
1453
(let ((neti:*invoke-service-automatic-retry* t))
1454
(net:invoke-service-on-host :x-window-system host)))))
1457
(defun open-x-stream (host display protocol)
1458
(declare (ignore protocol))
1459
(net:open-connection-on-medium
1460
(net:parse-host host) ;Host
1461
:byte-stream ;Medium
1462
"X11" ;Logical contact name
1463
:stream-type :character-stream
1464
:direction :bidirectional
1465
:timeout-after-open nil
1466
:remote-port (+ *x-tcp-port* display)))
1469
(net:define-logical-contact-name
1474
(:tcp ,*x-tcp-port*)))
1477
(defun open-x-stream (host display protocol)
1479
(let ((fd (connect-to-server host display)))
1481
(error "Failed to connect to server: ~A ~D" host display))
1482
(user::make-lisp-stream :input-handle fd
1484
:element-type 'unsigned-byte
1485
#-lcl3.0 :stream-type #-lcl3.0 :ephemeral)))
1488
(defun open-x-stream (host display protocol)
1490
(let ((stream (open-socket-stream host display)))
1491
(if (streamp stream)
1493
(error "Cannot connect to server: ~A:~D" host display))))
1497
;; Note that since we don't use the CL i/o facilities to do i/o, the display
1498
;; input and output "stream" is really a file descriptor (fixnum).
1500
(defun open-x-stream (host display protocol)
1501
(declare (ignore protocol));; unused
1502
(let ((fd (connect-to-server (string host) display)))
1504
(error "Failed to connect to server: ~A ~D" host display))
1508
(defun open-x-stream (host display protocol)
1509
(declare (ignore protocol));; unused
1510
(minima:open-tcp-stream :foreign-address (apply #'minima:make-ip-address
1511
(cdr (host-address host)))
1512
:foreign-port (+ *x-tcp-port* display)))
1515
(defconstant +X-unix-socket-path+
1517
"The location of the X socket")
1520
(defun open-x-stream (host display protocol)
1521
(declare (ignore protocol)
1522
(type (integer 0) display))
1524
(if (or (string= host "") (string= host "unix")) ; AF_LOCAL domain socket
1525
(let ((s (make-instance 'local-socket :type :stream)))
1526
(socket-connect s (format nil "~A~D" +X-unix-socket-path+ display))
1528
(let ((host (car (host-ent-addresses (get-host-by-name host)))))
1530
(let ((s (make-instance 'inet-socket :type :stream :protocol :tcp)))
1531
(socket-connect s host (+ 6000 display))
1533
:element-type '(unsigned-byte 8)
1534
:input t :output t :buffering :none))
1537
(defun open-x-stream (host display protocol)
1538
(declare (ignore protocol)
1539
(type (integer 0) display))
1541
(if (or (string= host "") (string= host "unix")) ; AF_UNIX doamin socket
1542
(sys::open-unix-socket-stream
1543
(format nil "~A~D" +X-unix-socket-path+ display))
1544
(si::open-client-stream host (+ 6000 display)))))
1546
;;; BUFFER-READ-DEFAULT - read data from the X stream
1548
#+(or Genera explorer)
1549
(defun buffer-read-default (display vector start end timeout)
1550
;; returns non-NIL if EOF encountered
1551
;; Returns :TIMEOUT when timeout exceeded
1552
(declare (type display display)
1553
(type buffer-bytes vector)
1554
(type array-index start end)
1555
(type (or null (real 0 *)) timeout))
1557
(let ((stream (display-input-stream display)))
1558
(or (cond ((null stream))
1559
((funcall stream :listen) nil)
1560
((and timeout (= timeout 0)) :timeout)
1561
((buffer-input-wait-default display timeout)))
1562
(multiple-value-bind (ignore eofp)
1563
(funcall stream :string-in nil vector start end)
1569
;; Rewritten 10/89 to not use foreign function interface to do I/O.
1571
(defun buffer-read-default (display vector start end timeout)
1572
(declare (type display display)
1573
(type buffer-bytes vector)
1574
(type array-index start end)
1575
(type (or null (real 0 *)) timeout))
1578
(let* ((howmany (- end start))
1579
(fd (display-input-stream display)))
1580
(declare (type array-index howmany)
1582
(or (cond ((fd-char-avail-p fd) nil)
1583
((and timeout (= timeout 0)) :timeout)
1584
((buffer-input-wait-default display timeout)))
1585
(fd-read-bytes fd vector start howmany))))
1589
(defmacro with-underlying-stream ((variable stream display direction) &body body)
1591
(or (getf (display-plist ,display) ',direction)
1592
(setf (getf (display-plist ,display) ',direction)
1593
(lucid::underlying-stream
1594
,stream ,(if (eq direction 'input) :input :output))))))
1598
(defun buffer-read-default (display vector start end timeout)
1599
;;Note that LISTEN must still be done on "slow stream" or the I/O system
1600
;;gets confused. But reading should be done from "fast stream" for speed.
1601
;;We used to inhibit scheduling because there were races in Lucid's
1602
;;multitasking system. Empirical evidence suggests they may be gone now.
1603
;;Should you decide you need to inhibit scheduling, do it around the
1605
(declare (type display display)
1606
(type buffer-bytes vector)
1607
(type array-index start end)
1608
(type (or null (real 0 *)) timeout))
1610
(let ((stream (display-input-stream display)))
1611
(declare (type (or null stream) stream))
1612
(or (cond ((null stream))
1613
((listen stream) nil)
1614
((and timeout (= timeout 0)) :timeout)
1615
((buffer-input-wait-default display timeout)))
1616
(with-underlying-stream (stream stream display input)
1617
(eq (lcl:read-array stream vector start end nil :eof) :eof)))))
1620
(defun buffer-read-default (display vector start end timeout)
1621
;; returns non-NIL if EOF encountered
1622
;; Returns :TIMEOUT when timeout exceeded
1623
(declare (type display display)
1624
(type buffer-bytes vector)
1625
(type array-index start end)
1626
(type (or null (real 0 *)) timeout))
1628
(let ((stream (display-input-stream display)))
1629
(or (cond ((null stream))
1630
((listen stream) nil)
1631
((and timeout (= timeout 0)) :timeout)
1632
((buffer-input-wait-default display timeout)))
1633
(eq :eof (minima:read-vector vector stream nil start end)))))
1635
;;; BUFFER-READ-DEFAULT for CMU Common Lisp.
1637
;;; If timeout is 0, then we call LISTEN to see if there is any input.
1638
;;; Timeout 0 is the only case where READ-INPUT dives into BUFFER-READ without
1639
;;; first calling BUFFER-INPUT-WAIT-DEFAULT.
1642
(defun buffer-read-default (display vector start end timeout)
1643
(declare (type display display)
1644
(type buffer-bytes vector)
1645
(type array-index start end)
1646
(type (or null fixnum) timeout))
1648
(cond ((and (eql timeout 0)
1649
(not (listen (display-input-stream display))))
1652
(#+cmu system:read-n-bytes
1653
#+sbcl sb-sys:read-n-bytes
1654
(display-input-stream display)
1655
vector start (- end start))
1659
(defun buffer-read-default (display vector start end timeout)
1660
(declare (type display display)
1661
(type buffer-bytes vector)
1662
(type array-index start end)
1663
(type (or null fixnum) timeout))
1665
(cond ((and (eql timeout 0)
1666
(not (listen (display-input-stream display))))
1669
(read-sequence vector
1670
(display-input-stream display)
1676
;;; CLX performance will suffer if your lisp uses read-byte for
1677
;;; receiving all data from the X Window System server.
1678
;;; You are encouraged to write a specialized version of
1679
;;; buffer-read-default that does block transfers.
1680
#-(or Genera explorer excl lcl3.0 Minima CMU sbcl ecl)
1681
(defun buffer-read-default (display vector start end timeout)
1682
(declare (type display display)
1683
(type buffer-bytes vector)
1684
(type array-index start end)
1685
(type (or null (real 0 *)) timeout))
1687
(let ((stream (display-input-stream display)))
1688
(declare (type (or null stream) stream))
1689
(or (cond ((null stream))
1690
((listen stream) nil)
1691
((and timeout (= timeout 0)) :timeout)
1692
((buffer-input-wait-default display timeout)))
1693
(do* ((index start (index1+ index)))
1694
((index>= index end) nil)
1695
(declare (type array-index index))
1696
(let ((c (read-byte stream nil nil)))
1697
(declare (type (or null card8) c))
1700
(setf (aref vector index) (the card8 c))))))))
1702
;;; BUFFER-WRITE-DEFAULT - write data to the X stream
1704
#+(or Genera explorer)
1705
(defun buffer-write-default (vector display start end)
1706
;; The default buffer write function for use with common-lisp streams
1707
(declare (type buffer-bytes vector)
1708
(type display display)
1709
(type array-index start end))
1711
(let ((stream (display-output-stream display)))
1712
(declare (type (or null stream) stream))
1713
(unless (null stream)
1714
(write-string vector stream :start start :end end))))
1717
(defun buffer-write-default (vector display start end)
1718
(declare (type buffer-bytes vector)
1719
(type display display)
1720
(type array-index start end))
1722
(excl::filesys-write-bytes (display-output-stream display) vector start
1726
(defun buffer-write-default (vector display start end)
1727
;;We used to inhibit scheduling because there were races in Lucid's
1728
;;multitasking system. Empirical evidence suggests they may be gone now.
1729
;;Should you decide you need to inhibit scheduling, do it around the
1731
(declare (type display display)
1732
(type buffer-bytes vector)
1733
(type array-index start end))
1735
(let ((stream (display-output-stream display)))
1736
(declare (type (or null stream) stream))
1737
(unless (null stream)
1738
(with-underlying-stream (stream stream display output)
1739
(lcl:write-array stream vector start end)))))
1742
(defun buffer-write-default (vector display start end)
1743
;; The default buffer write function for use with common-lisp streams
1744
(declare (type buffer-bytes vector)
1745
(type display display)
1746
(type array-index start end))
1748
(let ((stream (display-output-stream display)))
1749
(declare (type (or null stream) stream))
1750
(unless (null stream)
1751
(minima:write-vector vector stream start end))))
1754
(defun buffer-write-default (vector display start end)
1755
(declare (type buffer-bytes vector)
1756
(type display display)
1757
(type array-index start end))
1759
(system:output-raw-bytes (display-output-stream display) vector start end)
1763
(defun buffer-write-default (vector display start end)
1764
(declare (type buffer-bytes vector)
1765
(type display display)
1766
(type array-index start end))
1768
(sb-impl::output-raw-bytes (display-output-stream display) vector start end)
1772
(defun buffer-write-default (vector display start end)
1773
(declare (type buffer-bytes vector)
1774
(type display display)
1775
(type array-index start end))
1777
(write-sequence vector
1778
(display-output-stream display)
1784
;;; CLX performance will be severely degraded if your lisp uses
1785
;;; write-byte to send all data to the X Window System server.
1786
;;; You are STRONGLY encouraged to write a specialized version
1787
;;; of buffer-write-default that does block transfers.
1789
#-(or Genera explorer excl lcl3.0 Minima CMU sbcl)
1790
(defun buffer-write-default (vector display start end)
1791
;; The default buffer write function for use with common-lisp streams
1792
(declare (type buffer-bytes vector)
1793
(type display display)
1794
(type array-index start end))
1796
(let ((stream (display-output-stream display)))
1797
(declare (type (or null stream) stream))
1798
(unless (null stream)
1799
(with-vector (vector buffer-bytes)
1800
(do ((index start (index1+ index)))
1801
((index>= index end))
1802
(declare (type array-index index))
1803
(write-byte (aref vector index) stream))))))
1805
;;; buffer-force-output-default - force output to the X stream
1808
(defun buffer-force-output-default (display)
1809
;; buffer-write-default does the actual writing.
1810
(declare (ignore display)))
1813
(defun buffer-force-output-default (display)
1814
;; The default buffer force-output function for use with common-lisp streams
1815
(declare (type display display))
1816
(let ((stream (display-output-stream display)))
1817
(declare (type (or null stream) stream))
1818
(unless (null stream)
1819
(force-output stream))))
1821
;;; BUFFER-CLOSE-DEFAULT - close the X stream
1824
(defun buffer-close-default (display &key abort)
1825
;; The default buffer close function for use with common-lisp streams
1826
(declare (type display display)
1829
(excl::filesys-checking-close (display-output-stream display)))
1832
(defun buffer-close-default (display &key abort)
1833
;; The default buffer close function for use with common-lisp streams
1834
(declare (type display display))
1836
(let ((stream (display-output-stream display)))
1837
(declare (type (or null stream) stream))
1838
(unless (null stream)
1839
(close stream :abort abort))))
1841
;;; BUFFER-INPUT-WAIT-DEFAULT - wait for for input to be available for the
1842
;;; buffer. This is called in read-input between requests, so that a process
1843
;;; waiting for input is abortable when between requests. Should return
1844
;;; :TIMEOUT if it times out, NIL otherwise.
1846
;;; The default implementation
1848
;; Poll for input every *buffer-read-polling-time* SECONDS.
1849
#-(or Genera explorer excl lcl3.0 CMU sbcl)
1850
(defparameter *buffer-read-polling-time* 0.5)
1852
#-(or Genera explorer excl lcl3.0 CMU sbcl)
1853
(defun buffer-input-wait-default (display timeout)
1854
(declare (type display display)
1855
(type (or null (real 0 *)) timeout))
1856
(declare (clx-values timeout))
1858
(let ((stream (display-input-stream display)))
1859
(declare (type (or null stream) stream))
1860
(cond ((null stream))
1861
((listen stream) nil)
1862
((and timeout (= timeout 0)) :timeout)
1863
((not (null timeout))
1864
(multiple-value-bind (npoll fraction)
1865
(truncate timeout *buffer-read-polling-time*)
1866
(dotimes (i npoll) ; Sleep for a time, then listen again
1867
(sleep *buffer-read-polling-time*)
1868
(when (listen stream)
1869
(return-from buffer-input-wait-default nil)))
1870
(when (plusp fraction)
1871
(sleep fraction) ; Sleep a fraction of a second
1872
(when (listen stream) ; and listen one last time
1873
(return-from buffer-input-wait-default nil)))
1877
(defun buffer-input-wait-default (display timeout)
1878
(declare (type display display)
1879
(type (or null number) timeout))
1880
(let ((stream (display-input-stream display)))
1881
(declare (type (or null stream) stream))
1882
(cond ((null stream))
1883
((listen stream) nil)
1884
((eql timeout 0) :timeout)
1886
(if #+sbcl (sb-sys:wait-until-fd-usable (sb-sys:fd-stream-fd stream)
1888
#+mp (mp:process-wait-until-fd-usable
1889
(system:fd-stream-fd stream) :input timeout)
1890
#-(or sbcl mp) (system:wait-until-fd-usable
1891
(system:fd-stream-fd stream) :input timeout)
1896
(defun buffer-input-wait-default (display timeout)
1897
(declare (type display display)
1898
(type (or null (real 0 *)) timeout))
1899
(declare (clx-values timeout))
1900
(let ((stream (display-input-stream display)))
1901
(declare (type (or null stream) stream))
1902
(cond ((null stream))
1903
((scl:send stream :listen) nil)
1904
((and timeout (= timeout 0)) :timeout)
1905
((null timeout) (si:stream-input-block stream "CLX Input"))
1907
(scl:condition-bind ((neti:protocol-timeout
1909
(when (eq stream (scl:send error :stream))
1910
(return-from buffer-input-wait-default :timeout)))))
1911
(neti:with-stream-timeout (stream :input timeout)
1912
(si:stream-input-block stream "CLX Input")))))
1916
(defun buffer-input-wait-default (display timeout)
1917
(declare (type display display)
1918
(type (or null (real 0 *)) timeout))
1919
(declare (clx-values timeout))
1920
(let ((stream (display-input-stream display)))
1921
(declare (type (or null stream) stream))
1922
(cond ((null stream))
1923
((zl:send stream :listen) nil)
1924
((and timeout (= timeout 0)) :timeout)
1926
(si:process-wait "CLX Input" stream :listen))
1928
(unless (si:process-wait-with-timeout
1929
"CLX Input" (round (* timeout 60.)) stream :listen)
1930
(return-from buffer-input-wait-default :timeout))))
1935
;; This is used so an 'eq' test may be used to find out whether or not we can
1936
;; safely throw this process out of the CLX read loop.
1938
(defparameter *read-whostate* "waiting for input from X server")
1941
;; Note that this function returns nil on error if the scheduler is running,
1942
;; t on error if not. This is ok since buffer-read will detect the error.
1945
(defun buffer-input-wait-default (display timeout)
1946
(declare (type display display)
1947
(type (or null (real 0 *)) timeout))
1948
(declare (clx-values timeout))
1949
(let ((fd (display-input-stream display)))
1950
(declare (fixnum fd))
1952
(cond ((fd-char-avail-p fd)
1955
;; Otherwise no bytes were available on the socket
1956
((and timeout (= timeout 0))
1957
;; If there aren't enough and timeout == 0, timeout.
1960
;; If the scheduler is running let it do timeouts.
1961
(mp::*scheduler-stack-group*
1964
(mp:wait-for-input-available fd :whostate *read-whostate*
1965
:wait-function #'fd-char-avail-p
1967
(return-from buffer-input-wait-default :timeout))
1969
(mp::wait-for-input-available fd :whostate *read-whostate*
1970
:wait-function #'fd-char-avail-p))
1972
;; Otherwise we have to handle timeouts by hand, and call select()
1973
;; to block until input is available. Note we don't really handle
1974
;; the interaction of interrupts and (numberp timeout) here. XX
1977
(declare (fixnum res))
1978
(with-interrupt-checking-on
1980
(setq res (fd-wait-for-input fd (if (null timeout) 0
1981
(truncate timeout))))
1982
(cond ((plusp res) ; success
1984
((eq res 0) ; timeout
1986
((eq res -1) ; error
1988
;; Otherwise we got an interrupt -- go around again.
1993
(defun buffer-input-wait-default (display timeout)
1994
(declare (type display display)
1995
(type (or null (real 0 *)) timeout)
1996
(clx-values timeout))
1998
(let ((stream (display-input-stream display)))
1999
(declare (type (or null stream) stream))
2000
(cond ((null stream))
2001
((listen stream) nil)
2002
((and timeout (= timeout 0)) :timeout)
2003
((with-underlying-stream (stream stream display input)
2004
(lucid::waiting-for-input-from-stream stream
2005
(lucid::with-io-unlocked
2007
(lcl:process-wait "CLX Input" #'listen stream)
2008
(lcl:process-wait-with-timeout
2009
"CLX Input" timeout #'listen stream)))))
2014
;;; BUFFER-LISTEN-DEFAULT - returns T if there is input available for the
2015
;;; buffer. This should never block, so it can be called from the scheduler.
2017
;;; The default implementation is to just use listen.
2019
(defun buffer-listen-default (display)
2020
(declare (type display display))
2021
(let ((stream (display-input-stream display)))
2022
(declare (type (or null stream) stream))
2028
(defun buffer-listen-default (display)
2029
(declare (type display display))
2030
(let ((fd (display-input-stream display)))
2031
(declare (type fixnum fd))
2034
(fd-char-avail-p fd))))
2037
;;;----------------------------------------------------------------------------
2038
;;; System dependent speed hacks
2039
;;;----------------------------------------------------------------------------
2042
;; WITH-STACK-LIST is used by WITH-STATE as a memory saving feature.
2043
;; If your lisp doesn't have stack-lists, and you're worried about
2044
;; consing garbage, you may want to re-write this to allocate and
2045
;; initialize lists from a resource.
2048
(defmacro with-stack-list ((var &rest elements) &body body)
2049
;; SYNTAX: (WITH-STACK-LIST (var exp1 ... expN) body)
2050
;; Equivalent to (LET ((var (MAPCAR #'EVAL '(exp1 ... expN)))) body)
2051
;; except that the list produced by MAPCAR resides on the stack and
2052
;; therefore DISAPPEARS when WITH-STACK-LIST is exited.
2053
`(let ((,var (list ,@elements)))
2054
(declare (type cons ,var)
2055
#+clx-ansi-common-lisp (dynamic-extent ,var))
2059
(defmacro with-stack-list* ((var &rest elements) &body body)
2060
;; SYNTAX: (WITH-STACK-LIST* (var exp1 ... expN) body)
2061
;; Equivalent to (LET ((var (APPLY #'LIST* (MAPCAR #'EVAL '(exp1 ... expN))))) body)
2062
;; except that the list produced by MAPCAR resides on the stack and
2063
;; therefore DISAPPEARS when WITH-STACK-LIST is exited.
2064
`(let ((,var (list* ,@elements)))
2065
(declare (type cons ,var)
2066
#+clx-ansi-common-lisp (dynamic-extent ,var))
2069
(declaim (inline buffer-replace))
2072
(defun buffer-replace (buf1 buf2 start1 end1 &optional (start2 0))
2073
(declare (type vector buf1 buf2)
2074
(type array-index start1 end1 start2))
2075
(sys:copy-array-portion buf2 start2 (length buf2) buf1 start1 end1))
2078
(defun buffer-replace (target-sequence source-sequence target-start
2079
target-end &optional (source-start 0))
2080
(declare (type buffer-bytes target-sequence source-sequence)
2081
(type array-index target-start target-end source-start)
2082
(optimize (speed 3) (safety 0)))
2084
(let ((source-end (length source-sequence)))
2085
(declare (type array-index source-end))
2087
(excl:if* (and (eq target-sequence source-sequence)
2088
(> target-start source-start))
2089
then (let ((nelts (min (- target-end target-start)
2090
(- source-end source-start))))
2091
(do ((target-index (+ target-start nelts -1) (1- target-index))
2092
(source-index (+ source-start nelts -1) (1- source-index)))
2093
((= target-index (1- target-start)) target-sequence)
2094
(declare (type array-index target-index source-index))
2096
(setf (aref target-sequence target-index)
2097
(aref source-sequence source-index))))
2098
else (do ((target-index target-start (1+ target-index))
2099
(source-index source-start (1+ source-index)))
2100
((or (= target-index target-end) (= source-index source-end))
2102
(declare (type array-index target-index source-index))
2104
(setf (aref target-sequence target-index)
2105
(aref source-sequence source-index))))))
2108
(defun buffer-replace (buf1 buf2 start1 end1 &optional (start2 0))
2109
(declare (type buffer-bytes buf1 buf2)
2110
(type array-index start1 end1 start2))
2112
(kernel:bit-bash-copy
2113
buf2 (+ (* start2 #+cmu vm:byte-bits #+sbcl sb-vm:n-byte-bits)
2114
(* vm:vector-data-offset #+cmu vm:word-bits #+sbcl sb-vm:n-word-bits))
2115
buf1 (+ (* start1 #+cmu vm:byte-bits #+sbcl sb-vm:n-byte-bits)
2116
(* vm:vector-data-offset #+cmu vm:word-bits #+sbcl sb-vm:n-word-bits))
2117
(* (- end1 start1) #+cmu vm:byte-bits #+sbcl sb-vm:n-byte-bits)))
2120
;;;The compiler is *supposed* to optimize calls to replace, but in actual
2121
;;;fact it does not.
2122
(defun buffer-replace (buf1 buf2 start1 end1 &optional (start2 0))
2123
(declare (type buffer-bytes buf1 buf2)
2124
(type array-index start1 end1 start2))
2126
(let ((end2 (lucid::%simple-8bit-vector-length buf2)))
2127
(declare (type array-index end2))
2128
(lucid::simple-8bit-vector-replace-internal
2129
buf1 buf2 start1 end1 start2 end2)))
2131
#+(and clx-overlapping-arrays (not (or lispm excl)))
2132
(defun buffer-replace (buf1 buf2 start1 end1 &optional (start2 0))
2133
(declare (type vector buf1 buf2)
2134
(type array-index start1 end1 start2))
2135
(replace buf1 buf2 :start1 start1 :end1 end1 :start2 start2))
2137
#-(or lispm lucid excl CMU clx-overlapping-arrays)
2138
(defun buffer-replace (buf1 buf2 start1 end1 &optional (start2 0))
2139
(declare (type buffer-bytes buf1 buf2)
2140
(type array-index start1 end1 start2))
2141
(replace buf1 buf2 :start1 start1 :end1 end1 :start2 start2))
2144
(defun with-location-bindings (sys:"e bindings &rest body)
2145
(do ((bindings bindings (cdr bindings)))
2147
(sys:eval-body-as-progn body))
2148
(sys:bind (sys:*eval `(sys:locf ,(caar bindings)))
2149
(sys:*eval (cadar bindings)))))
2152
(compiler:defoptimizer with-location-bindings with-l-b-compiler nil (form)
2153
(let ((bindings (cadr form))
2156
,@(loop for (accessor value) in bindings
2157
collect `(si:bind (si:locf ,accessor) ,value))
2161
(defun (:property with-location-bindings compiler::cw-handler) (exp)
2162
(let* ((bindlist (mapcar #'compiler::cw-clause (second exp)))
2163
(body (compiler::cw-clause (cddr exp))))
2164
(and compiler::cw-return-expansion-flag
2165
(list* (first exp) bindlist body))))
2167
#+(and lispm (not ti))
2168
(defmacro with-location-bindings (bindings &body body)
2169
`(sys:letf* ,bindings ,@body))
2172
(defmacro with-gcontext-bindings ((gc saved-state indexes ts-index temp-mask temp-gc)
2174
;; don't use svref on LHS because Symbolics didn't define locf for it
2175
(let* ((local-state (gensym))
2176
(bindings `(((aref ,local-state ,ts-index) 0)))) ; will become zero anyway
2177
(dolist (index indexes)
2178
(push `((aref ,local-state ,index) (svref ,saved-state ,index))
2180
`(let ((,local-state (gcontext-local-state ,gc)))
2181
(declare (type gcontext-state ,local-state))
2183
(with-location-bindings ,bindings
2185
(setf (svref ,local-state ,ts-index) 0)
2187
(restore-gcontext-temp-state ,gc ,temp-mask ,temp-gc))
2188
(deallocate-gcontext-state ,saved-state)))))
2191
(defmacro with-gcontext-bindings ((gc saved-state indexes ts-index temp-mask temp-gc)
2193
(let ((local-state (gensym))
2195
(dolist (index indexes)
2196
(push `(setf (svref ,local-state ,index) (svref ,saved-state ,index))
2201
(let ((,local-state (gcontext-local-state ,gc)))
2202
(declare (type gcontext-state ,local-state))
2204
(setf (svref ,local-state ,ts-index) 0))
2206
(restore-gcontext-temp-state ,gc ,temp-mask ,temp-gc))
2207
(deallocate-gcontext-state ,saved-state))))
2209
;;;----------------------------------------------------------------------------
2210
;;; How much error detection should CLX do?
2211
;;; Several levels are possible:
2213
;;; 1. Do the equivalent of check-type on every argument.
2215
;;; 2. Simply report TYPE-ERROR. This eliminates overhead of all the format
2216
;;; strings generated by check-type.
2218
;;; 3. Do error checking only on arguments that are likely to have errors
2219
;;; (like keyword names)
2221
;;; 4. Do error checking only where not doing so may dammage the envirnment
2222
;;; on a non-tagged machine (i.e. when storing into a structure that has
2225
;;; 5. No extra error detection code. On lispm's, ASET may barf trying to
2226
;;; store a non-integer into a number array.
2228
;;; How extensive should the error checking be? For example, if the server
2229
;;; expects a CARD16, is is sufficient for CLX to check for integer, or
2230
;;; should it also check for non-negative and less than 65536?
2231
;;;----------------------------------------------------------------------------
2233
;; The +TYPE-CHECK?+ constant controls how much error checking is done.
2234
;; Possible values are:
2235
;; NIL - Don't do any error checking
2236
;; t - Do the equivalent of checktype on every argument
2237
;; :minimal - Do error checking only where errors are likely
2239
;;; This controls macro expansion, and isn't changable at run-time You will
2240
;;; probably want to set this to nil if you want good performance at
2241
;;; production time.
2242
(defconstant +type-check?+
2243
#+(or Genera Minima CMU sbcl) nil
2244
#-(or Genera Minima CMU sbcl) t)
2246
;; TYPE? is used to allow the code to do error checking at a different level from
2247
;; the declarations. It also does some optimizations for systems that don't have
2248
;; good compiler support for TYPEP. The definitions for CARD32, CARD16, INT16, etc.
2249
;; include range checks. You can modify TYPE? to do less extensive checking
2250
;; for these types if you desire.
2253
;; ### This comment is a lie! TYPE? is really also used for run-time type
2254
;; dispatching, not just type checking. -- Ram.
2256
(defmacro type? (object type)
2258
`(typep ,object ,type)
2260
(if (not (constantp type))
2261
`(typep ,object ,type)
2263
(setq type (eval type))
2264
#+(or Genera explorer Minima)
2266
`(locally (declare (optimize safety)) (typep ,object ',type))
2267
`(typep ,object ',type))
2268
#-(or Genera explorer Minima)
2269
(let ((predicate (assoc type
2270
'((drawable drawable-p) (window window-p)
2271
(pixmap pixmap-p) (cursor cursor-p)
2272
(font font-p) (gcontext gcontext-p)
2273
(colormap colormap-p) (null null)
2274
(integer integerp)))))
2276
`(,(second predicate) ,object))
2277
((eq type 'generalized-boolean)
2278
't) ; Everything is a generalized-boolean.
2280
`(locally (declare (optimize safety)) (typep ,object ',type)))
2282
`(typep ,object ',type)))))))
2284
;; X-TYPE-ERROR is the function called for type errors.
2285
;; If you want lots of checking, but are concerned about code size,
2286
;; this can be made into a macro that ignores some parameters.
2288
(defun x-type-error (object type &optional error-string)
2289
(x-error 'x-type-error
2292
:type-string error-string))
2295
;;-----------------------------------------------------------------------------
2297
;; Hack up KMP error signaling using zetalisp until the real thing comes
2299
;;-----------------------------------------------------------------------------
2301
(defun default-error-handler (display error-key &rest key-vals
2302
&key asynchronous &allow-other-keys)
2303
(declare (type generalized-boolean asynchronous)
2304
(dynamic-extent key-vals))
2305
;; The default display-error-handler.
2306
;; It signals the conditions listed in the DISPLAY file.
2308
(apply #'x-cerror "Ignore" error-key :display display :error-key error-key key-vals)
2309
(apply #'x-error error-key :display display :error-key error-key key-vals)))
2311
#+(and lispm (not Genera) (not clx-ansi-common-lisp))
2312
(defun x-error (condition &rest keyargs)
2313
(apply #'sys:signal condition keyargs))
2315
#+(and lispm (not Genera) (not clx-ansi-common-lisp))
2316
(defun x-cerror (proceed-format-string condition &rest keyargs)
2317
(sys:signal (apply #'zl:make-condition condition keyargs)
2318
:proceed-types proceed-format-string))
2320
#+(and Genera (not clx-ansi-common-lisp))
2321
(defun x-error (condition &rest keyargs)
2322
(declare (dbg:error-reporter))
2323
(apply #'sys:signal condition keyargs))
2325
#+(and Genera (not clx-ansi-common-lisp))
2326
(defun x-cerror (proceed-format-string condition &rest keyargs)
2327
(declare (dbg:error-reporter))
2328
(apply #'sys:signal condition :continue-format-string proceed-format-string keyargs))
2330
#+(or clx-ansi-common-lisp excl lcl3.0 (and CMU mp))
2331
(defun x-error (condition &rest keyargs)
2332
(declare (dynamic-extent keyargs))
2333
(apply #'error condition keyargs))
2335
#+(or clx-ansi-common-lisp excl lcl3.0 CMU)
2336
(defun x-cerror (proceed-format-string condition &rest keyargs)
2337
(declare (dynamic-extent keyargs))
2338
(apply #'cerror proceed-format-string condition keyargs))
2340
;;; X-ERROR for CMU Common Lisp
2342
;;; We detect a couple condition types for which we disable event handling in
2343
;;; our system. This prevents going into the debugger or returning to a
2344
;;; command prompt with CLX repeatedly seeing the same condition. This occurs
2345
;;; because CMU Common Lisp provides for all events (that is, X, input on file
2346
;;; descriptors, Mach messages, etc.) to come through one routine anyone can
2347
;;; use to wait for input.
2349
#+(and CMU (not mp))
2350
(defun x-error (condition &rest keyargs)
2351
(let ((condx (apply #'make-condition condition keyargs)))
2352
(when (eq condition 'closed-display)
2353
(let ((disp (closed-display-display condx)))
2354
(warn "Disabled event handling on ~S." disp)
2355
(ext::disable-clx-event-handling disp)))
2358
#-(or lispm ansi-common-lisp excl lcl3.0 CMU sbcl)
2359
(defun x-error (condition &rest keyargs)
2360
(error "X-Error: ~a"
2361
(princ-to-string (apply #'make-condition condition keyargs))))
2363
#-(or lispm clx-ansi-common-lisp excl lcl3.0 CMU sbcl)
2364
(defun x-cerror (proceed-format-string condition &rest keyargs)
2365
(cerror proceed-format-string "X-Error: ~a"
2366
(princ-to-string (apply #'make-condition condition keyargs))))
2368
;; version 15 of Pitman error handling defines the syntax for define-condition to be:
2369
;; DEFINE-CONDITION name (parent-type) [({slot}*) {option}*]
2370
;; Where option is one of: (:documentation doc-string) (:conc-name symbol-or-string)
2374
(defmacro define-condition (name parent-types &optional slots &rest args)
2375
`(lcl:define-condition
2376
,name (,(first parent-types))
2377
,(mapcar #'(lambda (slot) (if (consp slot) (car slot) slot))
2381
#+(and excl (not clx-ansi-common-lisp))
2382
(defmacro define-condition (name parent-types &optional slots &rest args)
2383
`(excl::define-condition
2384
,name (,(first parent-types))
2385
,(mapcar #'(lambda (slot) (if (consp slot) (car slot) slot))
2389
#+(and CMU (not clx-ansi-common-lisp))
2390
(defmacro define-condition (name parent-types &optional slots &rest args)
2391
`(common-lisp:define-condition
2392
,name (,(first parent-types))
2393
,(mapcar #'(lambda (slot) (if (consp slot) (car slot) slot))
2397
#+(and lispm (not clx-ansi-common-lisp))
2398
(defmacro define-condition (name parent-types &body options)
2400
(mapcar #'(lambda (slot) (if (consp slot) (car slot) slot))
2403
(conc-name (concatenate 'string (string name) "-"))
2405
(dolist (item options)
2407
(:documentation (setq documentation (second item)))
2408
(:conc-name (setq conc-name (string (second item))))
2409
(:report (setq reporter (second item)))))
2410
`(within-definition (,name define-condition)
2411
(zl:defflavor ,name ,slot-names ,parent-types
2412
:initable-instance-variables
2414
(:accessor-prefix ,conc-name)
2416
(:conc-name ,conc-name)
2418
(:outside-accessible-instance-variables ,@slot-names)
2420
(:readable-instance-variables ,@slot-names))
2421
,(when reporter ;; when no reporter, parent's is inherited
2422
`(zl:defmethod #-Genera (,name :report)
2423
#+Genera (dbg:report ,name) (stream)
2424
,(if (stringp reporter)
2425
`(write-string ,reporter stream)
2426
`(,reporter global:self stream))
2428
(zl:compile-flavor-methods ,name)
2429
,(when documentation
2430
`(setf (documentation name 'type) ,documentation))
2433
#+(and lispm (not Genera) (not clx-ansi-common-lisp))
2434
(zl:defflavor x-error () (global:error))
2436
#+(and Genera (not clx-ansi-common-lisp))
2437
(scl:defflavor x-error
2438
((dbg:proceed-types '(:continue)) ;
2439
continue-format-string)
2441
(:initable-instance-variables continue-format-string))
2443
#+(and Genera (not clx-ansi-common-lisp))
2444
(scl:defmethod (scl:make-instance x-error) (&rest ignore)
2445
(when (not (sys:variable-boundp continue-format-string))
2446
(setf dbg:proceed-types (remove :continue dbg:proceed-types))))
2448
#+(and Genera (not clx-ansi-common-lisp))
2449
(scl:defmethod (dbg:proceed x-error :continue) ()
2452
#+(and Genera (not clx-ansi-common-lisp))
2453
(sys:defmethod (dbg:document-proceed-type x-error :continue) (stream)
2454
(format stream continue-format-string))
2456
#+(or clx-ansi-common-lisp excl lcl3.0 CMU sbcl)
2457
(define-condition x-error (error) ())
2459
#-(or lispm clx-ansi-common-lisp excl lcl3.0 CMU sbcl)
2463
#-(or lispm clx-ansi-common-lisp excl lcl3.0 CMU sbcl)
2464
(defmacro define-condition (name parent-types &body options)
2465
;; Define a structure that when printed displays an error message
2466
(flet ((reporter-for-condition (name)
2467
(xintern "." name '-reporter.)))
2469
(mapcar #'(lambda (slot) (if (consp slot) (car slot) slot))
2472
(conc-name (concatenate 'string (string name) "-"))
2474
(condition (gensym))
2476
(report-function (reporter-for-condition name)))
2477
(dolist (item options)
2479
(:documentation (setq documentation (second item)))
2480
(:conc-name (setq conc-name (string (second item))))
2481
(:report (setq reporter (second item)))))
2483
(setq report-function (reporter-for-condition (first parent-types))))
2484
`(within-definition (,name define-condition)
2485
(defstruct (,name (:conc-name ,(intern conc-name))
2486
(:print-function condition-print)
2487
(:include ,(first parent-types)
2488
(report-function ',report-function)))
2490
,(when documentation
2491
`(setf (documentation name 'type) ,documentation))
2493
`(defun ,report-function (,condition ,stream)
2494
,(if (stringp reporter)
2495
`(write-string ,reporter ,stream)
2496
`(,reporter ,condition ,stream))
2500
#-(or lispm clx-ansi-common-lisp excl lcl3.0 CMU sbcl)
2501
(defun condition-print (condition stream depth)
2502
(declare (type x-error condition)
2503
(type stream stream)
2506
(print-unreadable-object (condition stream :type t))
2507
(funcall (x-error-report-function condition) condition stream))
2510
#-(or lispm clx-ansi-common-lisp excl lcl3.0 CMU sbcl)
2511
(defun make-condition (type &rest slot-initializations)
2512
(declare (dynamic-extent slot-initializations))
2513
(let ((make-function (intern (concatenate 'string (string 'make-) (string type))
2514
(symbol-package type))))
2515
(apply make-function slot-initializations)))
2517
#-(or clx-ansi-common-lisp excl lcl3.0 CMU sbcl)
2518
(define-condition type-error (x-error)
2519
((datum :reader type-error-datum :initarg :datum)
2520
(expected-type :reader type-error-expected-type :initarg :expected-type))
2522
(lambda (condition stream)
2523
(format stream "~s isn't a ~a"
2524
(type-error-datum condition)
2525
(type-error-expected-type condition)))))
2528
;;-----------------------------------------------------------------------------
2530
;;-----------------------------------------------------------------------------
2532
#-(or explorer Genera Minima Allegro CMU sbcl ecl)
2533
(defun host-address (host &optional (family :internet))
2534
;; Return a list whose car is the family keyword (:internet :DECnet :Chaos)
2535
;; and cdr is a list of network address bytes.
2536
(declare (type stringable host)
2537
(type (or null (member :internet :decnet :chaos) card8) family))
2538
(declare (clx-values list))
2540
(error "HOST-ADDRESS not implemented yet."))
2543
(defun host-address (host &optional (family :internet))
2544
;; Return a list whose car is the family keyword (:internet :DECnet :Chaos)
2545
;; and cdr is a list of network address bytes.
2546
(declare (type stringable host)
2547
(type (or null (member :internet :decnet :chaos) card8) family))
2548
(declare (clx-values list))
2551
(let ((addr (ip:get-ip-address host)))
2552
(unless addr (error "~s isn't an internet host name" host))
2554
(ldb (byte 8 24) addr)
2555
(ldb (byte 8 16) addr)
2556
(ldb (byte 8 8) addr)
2557
(ldb (byte 8 0) addr))))
2559
(let ((addr (first (chaos:chaos-addresses host))))
2560
(unless addr (error "~s isn't a chaos host name" host))
2562
(ldb (byte 8 0) addr)
2563
(ldb (byte 8 8) addr))))))
2566
(defun host-address (host &optional (family :internet))
2567
;; Return a list whose car is the family keyword (:internet :DECnet :Chaos)
2568
;; and cdr is a list of network address bytes.
2569
(declare (type stringable host)
2570
(type (or null (member :internet :decnet :chaos) card8) family))
2571
(declare (clx-values list))
2572
(setf host (string host))
2573
(let ((net-type (ecase family
2574
((:internet nil 0) :internet)
2576
((:chaos 2) :chaos))))
2578
(sys:send (net:parse-host host) :network-addresses)
2579
(error "~S isn't a valid ~(~A~) host name" host family))
2580
(let ((network (car addr))
2581
(address (cadr addr)))
2582
(when (sys:send network :network-typep net-type)
2583
(return (ecase family
2585
(multiple-value-bind (a b c d) (tcp:explode-internet-address address)
2586
(list :internet a b c d)))
2588
(list :DECnet (ldb (byte 8 0) address) (ldb (byte 8 8) address)))
2590
(list :chaos (ldb (byte 8 0) address) (ldb (byte 8 8) address))))))))))
2593
(defun host-address (host &optional (family :internet))
2594
;; Return a list whose car is the family keyword (:internet :DECnet :Chaos)
2595
;; and cdr is a list of network address bytes.
2596
(declare (type stringable host)
2597
(type (or null (member :internet :decnet :chaos) card8) family))
2598
(declare (clx-values list))
2602
(multiple-value-list
2603
(minima:ip-address-components (minima:parse-ip-address (string host))))))))
2606
(defun host-address (host &optional (family :internet))
2607
;; Return a list whose car is the family keyword (:internet :DECnet :Chaos)
2608
;; and cdr is a list of network address bytes.
2609
(declare (type stringable host)
2610
(type (or null (member :internet :decnet :chaos) card8) family))
2611
(declare (clx-values list))
2612
(labels ((no-host-error ()
2613
(error "Unknown host ~S" host))
2614
(no-address-error ()
2615
(error "Host ~S has no ~S address" host family)))
2619
(setf hostent (ipc::gethostbyname (string host)))
2620
(when (zerop hostent)
2624
(unless (= (ipc::hostent-addrtype hostent) 2)
2626
(assert (= (ipc::hostent-length hostent) 4))
2627
(let ((addr (ipc::hostent-addr hostent)))
2628
(when (or (member comp::.target.
2629
'(:hp :sgi4d :sony :dec3100)
2631
(probe-file "/lib/ld.so"))
2632
;; BSD 4.3 based systems require an extra indirection
2633
(setq addr (si:memref-int addr 0 0 :unsigned-long)))
2635
(si:memref-int addr 0 0 :unsigned-byte)
2636
(si:memref-int addr 1 0 :unsigned-byte)
2637
(si:memref-int addr 2 0 :unsigned-byte)
2638
(si:memref-int addr 3 0 :unsigned-byte))))))
2639
(ff:free-cstruct hostent)))))
2645
(defun host-address (host &optional (family :internet))
2646
;; Return a list whose car is the family keyword (:internet :DECnet :Chaos)
2647
;; and cdr is a list of network address bytes.
2648
(declare (type stringable host)
2649
(type (or null (member :internet :decnet :chaos) card8) family))
2650
(declare (clx-values list))
2651
(labels ((no-host-error ()
2652
(error "Unknown host ~S" host))
2653
(no-address-error ()
2654
(error "Host ~S has no ~S address" host family)))
2655
(let ((hostent #+rwi-sockets(ext:lookup-host-entry (string host))
2656
#+mna-sockets(net.sbcl.sockets:look-up-host-entry
2658
#+db-sockets(sockets:get-host-by-name (string host))))
2663
#+rwi-sockets(unless (= (ext::host-entry-addr-type hostent) 2)
2665
#+mna-sockets(unless (= (net.sbcl.sockets::host-entry-addr-type hostent) 2)
2667
;; the following form is for use with SBCL and Daniel
2668
;; Barlow's socket package
2669
#+db-sockets(unless (sockets:host-ent-address hostent)
2671
(append (list :internet)
2673
(let ((addr (first (ext::host-entry-addr-list hostent))))
2674
(list (ldb (byte 8 24) addr)
2675
(ldb (byte 8 16) addr)
2676
(ldb (byte 8 8) addr)
2677
(ldb (byte 8 0) addr)))
2679
(let ((addr (first (net.sbcl.sockets::host-entry-addr-list hostent))))
2680
(list (ldb (byte 8 24) addr)
2681
(ldb (byte 8 16) addr)
2682
(ldb (byte 8 8) addr)
2683
(ldb (byte 8 0) addr)))
2684
;; the following form is for use with SBCL and Daniel
2685
;; Barlow's socket package
2686
#+db-sockets(coerce (sockets:host-ent-address hostent)
2690
(defun host-address (host &optional (family :internet))
2691
;; Return a list whose car is the family keyword (:internet :DECnet :Chaos)
2692
;; and cdr is a list of network address bytes.
2693
(declare (type stringable host)
2694
(type (or null (member :internet :decnet :chaos) card8) family))
2695
(declare (clx-values list))
2696
(let ((hostent (get-host-by-name (string host))))
2699
(cons :internet (coerce (host-ent-address hostent) 'list))))))
2702
(defun host-address (host &optional (family :internet))
2703
;; Return a list whose car is the family keyword (:internet :DECnet :Chaos)
2704
;; and cdr is a list of network address bytes.
2705
(declare (type stringable host)
2706
(type (or null (member :internet :decnet :chaos) card8) family))
2707
(declare (clx-values list))
2708
(labels ((no-host-error ()
2709
(error "Unknown host ~S" host)))
2710
(let ((addr (first (nth-value 3 (si::lookup-host-entry (string host))))))
2714
(ldb (byte 8 24) addr)
2715
(ldb (byte 8 16) addr)
2716
(ldb (byte 8 8) addr)
2717
(ldb (byte 8 0) addr)))))
2719
#+explorer ;; This isn't required, but it helps make sense of the results from access-hosts
2720
(defun get-host (host-object)
2721
;; host-object is a list whose car is the family keyword (:internet :DECnet :Chaos)
2722
;; and cdr is a list of network address bytes.
2723
(declare (type list host-object))
2724
(declare (clx-values string family))
2725
(let* ((family (first host-object))
2726
(address (ecase family
2728
(dpb (second host-object)
2730
(dpb (third host-object)
2732
(dpb (fourth host-object)
2734
(fifth host-object)))))
2736
(dpb (third host-object) (byte 8 8) (second host-object))))))
2737
(when (eq family :internet) (setq family :ip))
2738
(let ((host (si:get-host-from-address address family)))
2739
(values (and host (funcall host :name)) family))))
2741
;;; This isn't required, but it helps make sense of the results from access-hosts
2743
(defun get-host (host-object)
2744
;; host-object is a list whose car is the family keyword (:internet :DECnet :Chaos)
2745
;; and cdr is a list of network address bytes.
2746
(declare (type list host-object))
2747
(declare (clx-values string family))
2748
(let ((family (first host-object)))
2749
(values (sys:send (net:get-host-from-address
2752
(apply #'tcp:build-internet-address (rest host-object)))
2754
(dpb (third host-object) (byte 8 8) (second host-object))))
2755
(net:local-network-of-type (if (eq family :DECnet)
2761
;;; This isn't required, but it helps make sense of the results from access-hosts
2763
(defun get-host (host-object)
2764
;; host-object is a list whose car is the family keyword (:internet :DECnet :Chaos)
2765
;; and cdr is a list of network address bytes.
2766
(declare (type list host-object))
2767
(declare (clx-values string family))
2768
(let ((family (first host-object)))
2769
(values (ecase family
2771
(minima:ip-address-string
2772
(apply #'minima:make-ip-address (rest host-object)))))
2776
;;-----------------------------------------------------------------------------
2777
;; Whether to use closures for requests or not.
2778
;;-----------------------------------------------------------------------------
2780
;;; If this macro expands to non-NIL, then request and locking code is
2781
;;; compiled in a much more compact format, as the common code is shared, and
2782
;;; the specific code is built into a closure that is funcalled by the shared
2783
;;; code. If your compiler makes efficient use of closures then you probably
2784
;;; want to make this expand to T, as it makes the code more compact.
2786
(defmacro use-closures ()
2787
#+(or lispm Minima) t
2788
#-(or lispm Minima) nil)
2790
#+(or Genera Minima)
2791
(defun clx-macroexpand (form env)
2792
(declare (ignore env))
2795
#-(or Genera Minima)
2796
(defun clx-macroexpand (form env)
2797
(macroexpand form env))
2800
;;-----------------------------------------------------------------------------
2802
;;-----------------------------------------------------------------------------
2807
(defun getenv (name)
2808
#+excl (sys:getenv name)
2809
#+lcl3.0 (lcl:environment-variable name)
2810
#+CMU (cdr (assoc name ext:*environment-list* :test #'string=))
2811
#+sbcl (sb-ext:posix-getenv name)
2812
#+ecl (si:getenv name)
2813
#-(or sbcl excl lcl3.0 CMU ecl) (progn name nil))
2815
(defun get-host-name ()
2816
"Return the same hostname as gethostname(3) would"
2817
;; machine-instance probably works on a lot of lisps, but clisp is not
2819
#+(or cmu sbcl) (machine-instance)
2820
;; resources-pathname was using short-site-name for this purpose
2821
#+excl (short-site-name)
2822
#+ecl (si:getenv "HOST")
2823
#-(or excl cmu sbcl ecl) (error "get-host-name not implemented"))
2825
(defun homedir-file-pathname (name)
2826
(and #-(or unix mach) (search "Unix" (software-type) :test #'char-equal)
2827
(merge-pathnames (user-homedir-pathname) (pathname name))))
2829
;;; DEFAULT-RESOURCES-PATHNAME - The pathname of the resources file to load if
2830
;;; a resource manager isn't running.
2832
(defun default-resources-pathname ()
2833
(homedir-file-pathname ".Xdefaults"))
2835
;;; RESOURCES-PATHNAME - The pathname of the resources file to load after the
2836
;;; defaults have been loaded.
2838
(defun resources-pathname ()
2839
(or (let ((string (getenv "XENVIRONMENT")))
2842
(homedir-file-pathname
2843
(concatenate 'string ".Xdefaults-" (get-host-name)))))
2845
;;; AUTHORITY-PATHNAME - The pathname of the authority file.
2847
(defun authority-pathname ()
2848
(or (let ((xauthority (getenv "XAUTHORITY")))
2850
(pathname xauthority)))
2851
(homedir-file-pathname ".Xauthority")))
2853
;;; this particular defaulting behaviour is typical to most Unices, I think
2855
(defun get-default-display (&optional display-name)
2856
"Parse the argument DISPLAY-NAME, or the environment variable $DISPLAY
2857
if it is NIL. Display names have the format
2859
[protocol/] [hostname] : [:] displaynumber [.screennumber]
2861
There are two special cases in parsing, to match that done in the Xlib
2864
- If the hostname is ``unix'' or the empty string, any supplied
2865
protocol is ignored and a connection is made using the :local
2868
- If a double colon separates hostname from displaynumber, the
2869
protocol is assumed to be decnet.
2871
Returns a list of (host display-number screen protocol)."
2872
(let* ((name (or display-name
2874
(error "DISPLAY environment variable is not set")))
2875
(slash-i (or (position #\/ name) -1))
2876
(colon-i (position #\: name :start (1+ slash-i)))
2877
(decnet-colon-p (eql (elt name (1+ colon-i)) #\:))
2878
(host (subseq name (1+ slash-i) colon-i))
2879
(dot-i (and colon-i (position #\. name :start colon-i)))
2880
(display (when colon-i
2882
:start (if decnet-colon-p
2887
(parse-integer name :start (1+ dot-i))))
2889
(cond ((or (string= host "") (string-equal host "unix")) :local)
2890
(decnet-colon-p :decnet)
2891
((> slash-i -1) (intern
2892
(string-upcase (subseq name 0 slash-i))
2895
(list host (or display 0) (or screen 0) protocol)))
2898
(defun get-default-display (&optional display-name)
2899
(declare (ignore display-name))
2900
(list "127.0.0.1" 0 0 :internet))
2903
;;-----------------------------------------------------------------------------
2905
;;-----------------------------------------------------------------------------
2907
(defun gc-cleanup ()
2908
(declare (special *event-free-list*
2909
*pending-command-free-list*
2910
*reply-buffer-free-lists*
2911
*gcontext-local-state-cache*
2912
*temp-gcontext-cache*))
2913
(setq *event-free-list* nil)
2914
(setq *pending-command-free-list* nil)
2915
(when (boundp '*reply-buffer-free-lists*)
2916
(fill *reply-buffer-free-lists* nil))
2917
(setq *gcontext-local-state-cache* nil)
2918
(setq *temp-gcontext-cache* nil)
2922
(si:define-gc-cleanup clx-cleanup ("CLX Cleanup")
2926
;;-----------------------------------------------------------------------------
2927
;; WITH-STANDARD-IO-SYNTAX equivalent, used in (SETF WM-COMMAND)
2928
;;-----------------------------------------------------------------------------
2930
#-(or clx-ansi-common-lisp Genera CMU sbcl)
2931
(defun with-standard-io-syntax-function (function)
2933
(sys:downward-funarg function))
2934
(let ((*package* (find-package :user))
2937
(*print-case* :upcase)
2938
(*print-circle* nil)
2941
(*print-length* nil)
2943
(*print-pretty* nil)
2946
(*read-default-float-format* 'single-float)
2947
(*read-suppress* nil)
2948
#+ticl (ticl:*print-structure* t)
2949
#+lucid (lucid::*print-structure* t))
2950
(funcall function)))
2952
#-(or clx-ansi-common-lisp Genera CMU sbcl)
2953
(defmacro with-standard-io-syntax (&body body)
2954
`(flet ((.with-standard-io-syntax-body. () ,@body))
2955
(with-standard-io-syntax-function #'.with-standard-io-syntax-body.)))
2958
;;-----------------------------------------------------------------------------
2959
;; DEFAULT-KEYSYM-TRANSLATE
2960
;;-----------------------------------------------------------------------------
2962
;;; If object is a character, char-bits are set from state.
2964
;;; [the following isn't implemented (should it be?)]
2965
;;; If object is a list, it is an alist with entries:
2966
;;; (base-char [modifiers] [mask-modifiers])
2967
;;; When MODIFIERS are specified, this character translation
2968
;;; will only take effect when the specified modifiers are pressed.
2969
;;; MASK-MODIFIERS can be used to specify a set of modifiers to ignore.
2970
;;; When MASK-MODIFIERS is missing, all other modifiers are ignored.
2971
;;; In ambiguous cases, the most specific translation is used.
2973
#-(or (and clx-ansi-common-lisp (not lispm) (not allegro)) CMU sbcl)
2974
(defun default-keysym-translate (display state object)
2975
(declare (type display display)
2979
(special left-meta-keysym right-meta-keysym
2980
left-super-keysym right-super-keysym
2981
left-hyper-keysym right-hyper-keysym))
2982
(when (characterp object)
2983
(when (logbitp (position :control +state-mask-vector+) state)
2984
(setf (char-bit object :control) 1))
2985
(when (or (state-keysymp display state left-meta-keysym)
2986
(state-keysymp display state right-meta-keysym))
2987
(setf (char-bit object :meta) 1))
2988
(when (or (state-keysymp display state left-super-keysym)
2989
(state-keysymp display state right-super-keysym))
2990
(setf (char-bit object :super) 1))
2991
(when (or (state-keysymp display state left-hyper-keysym)
2992
(state-keysymp display state right-hyper-keysym))
2993
(setf (char-bit object :hyper) 1)))
2996
#+(or (and clx-ansi-common-lisp (not lispm) (not allegro)) CMU sbcl)
2997
(defun default-keysym-translate (display state object)
2998
(declare (type display display)
3001
(ignore display state)
3006
;;-----------------------------------------------------------------------------
3008
;;-----------------------------------------------------------------------------
3012
(deftype pixarray-1-element-type ()
3015
(deftype pixarray-4-element-type ()
3018
(deftype pixarray-8-element-type ()
3021
(deftype pixarray-16-element-type ()
3022
'(unsigned-byte 16))
3024
(deftype pixarray-24-element-type ()
3025
'(unsigned-byte 24))
3027
(deftype pixarray-32-element-type ()
3028
#-(or Genera Minima) '(unsigned-byte 32)
3029
#+(or Genera Minima) 'fixnum)
3031
(deftype pixarray-1 ()
3032
'(#+(or cmu sbcl) simple-array
3033
#-(or cmu sbcl) array pixarray-1-element-type (* *)))
3035
(deftype pixarray-4 ()
3036
'(#+(or cmu sbcl) simple-array
3037
#-(or cmu sbcl) array pixarray-4-element-type (* *)))
3039
(deftype pixarray-8 ()
3040
'(#+(or cmu sbcl) simple-array
3041
#-(or cmu sbcl) array pixarray-8-element-type (* *)))
3043
(deftype pixarray-16 ()
3044
'(#+(or cmu sbcl) simple-array
3045
#-(or cmu sbcl) array pixarray-16-element-type (* *)))
3047
(deftype pixarray-24 ()
3048
'(#+(or cmu sbcl) simple-array
3049
#-(or cmu sbcl) array pixarray-24-element-type (* *)))
3051
(deftype pixarray-32 ()
3052
'(#+(or cmu sbcl) simple-array #-(or cmu sbcl) array pixarray-32-element-type (* *)))
3054
(deftype pixarray ()
3055
'(or pixarray-1 pixarray-4 pixarray-8 pixarray-16 pixarray-24 pixarray-32))
3060
;;; WITH-UNDERLYING-SIMPLE-VECTOR
3063
(defmacro with-underlying-simple-vector
3064
((variable element-type pixarray) &body body)
3065
(let ((bits-per-element
3066
(sys:array-bits-per-element
3067
(symbol-value (sys:type-array-element-type element-type)))))
3068
`(scl:stack-let ((,variable
3071
(index* (array-total-size ,pixarray)
3072
(sys:array-element-size ,pixarray))
3074
:element-type ',element-type
3075
:displaced-to ,pixarray)))
3076
(declare (type (vector ,element-type) ,variable))
3080
(defmacro with-underlying-simple-vector
3081
((variable element-type pixarray) &body body)
3082
`(let ((,variable (sys:underlying-simple-vector ,pixarray)))
3083
(declare (type (simple-array ,element-type (*)) ,variable))
3087
(defmacro with-underlying-simple-vector
3088
((variable element-type pixarray) &body body)
3089
`(let ((,variable (cdr (excl::ah_data ,pixarray))))
3090
(declare (type (simple-array ,element-type (*)) ,variable))
3094
;;; We do *NOT* support viewing an array as having a different element type.
3095
;;; Element-type is ignored.
3097
(defmacro with-underlying-simple-vector
3098
((variable element-type pixarray) &body body)
3099
(declare (ignore element-type))
3100
`(#+cmu kernel::with-array-data #+sbcl sb-kernel:with-array-data
3101
((,variable ,pixarray) (start) (end))
3102
(declare (ignore start end))
3105
;;; These are used to read and write pixels from and to CARD8s.
3107
;;; READ-IMAGE-LOAD-BYTE is used to extract 1 and 4 bit pixels from CARD8s.
3109
(defmacro read-image-load-byte (size position integer)
3110
(unless +image-bit-lsb-first-p+ (setq position (- 7 position)))
3111
`(the (unsigned-byte ,size)
3112
(#-Genera ldb #+Genera sys:%logldb
3113
(byte ,size ,position)
3114
(the card8 ,integer))))
3116
;;; READ-IMAGE-ASSEMBLE-BYTES is used to build 16, 24 and 32 bit pixels from
3117
;;; the appropriate number of CARD8s.
3119
(defmacro read-image-assemble-bytes (&rest bytes)
3120
(unless +image-byte-lsb-first-p+ (setq bytes (reverse bytes)))
3121
(let ((it (first bytes))
3123
(dolist (byte (rest bytes))
3125
`(#-Genera dpb #+Genera sys:%logdpb
3127
(byte 8 ,(incf count 8))
3128
(the (unsigned-byte ,count) ,it))))
3129
#-Genera `(the (unsigned-byte ,(* (length bytes) 8)) ,it)
3132
;;; WRITE-IMAGE-LOAD-BYTE is used to extract a CARD8 from a 16, 24 or 32 bit
3135
(defmacro write-image-load-byte (position integer integer-size)
3137
(unless +image-byte-lsb-first-p+ (setq position (- integer-size 8 position)))
3139
(#-Genera ldb #+Genera sys:%logldb
3141
#-Genera (the (unsigned-byte ,integer-size) ,integer)
3145
;;; WRITE-IMAGE-ASSEMBLE-BYTES is used to build a CARD8 from 1 or 4 bit
3148
(defmacro write-image-assemble-bytes (&rest bytes)
3149
(unless +image-bit-lsb-first-p+ (setq bytes (reverse bytes)))
3150
(let ((size (floor 8 (length bytes)))
3153
(dolist (byte (rest bytes))
3154
(setq it `(#-Genera dpb #+Genera sys:%logdpb
3155
(the (unsigned-byte ,size) ,byte)
3156
(byte ,size ,(incf count size))
3157
(the (unsigned-byte ,count) ,it))))
3160
#+(or Genera lcl3.0 excl)
3161
(defvar *computed-image-byte-lsb-first-p* +image-byte-lsb-first-p+)
3163
#+(or Genera lcl3.0 excl)
3164
(defvar *computed-image-bit-lsb-first-p* +image-bit-lsb-first-p+)
3166
;;; The following table gives the bit ordering within bytes (when accessed
3167
;;; sequentially) for a scanline containing 32 bits, with bits numbered 0 to
3168
;;; 31, where bit 0 should be leftmost on the display. For a given byte
3169
;;; labelled A-B, A is for the most significant bit of the byte, and B is
3170
;;; for the least significant bit.
3173
;;; 1 scanline-unit = 8
3174
;;; 2 scanline-unit = 16
3175
;;; 4 scanline-unit = 32
3176
;;; M byte-order = MostSignificant
3177
;;; L byte-order = LeastSignificant
3178
;;; m bit-order = MostSignificant
3179
;;; l bit-order = LeastSignificant
3184
;;; 1Mm 00-07 08-15 16-23 24-31
3185
;;; 2Mm 00-07 08-15 16-23 24-31
3186
;;; 4Mm 00-07 08-15 16-23 24-31
3187
;;; 1Ml 07-00 15-08 23-16 31-24
3188
;;; 2Ml 15-08 07-00 31-24 23-16
3189
;;; 4Ml 31-24 23-16 15-08 07-00
3190
;;; 1Lm 00-07 08-15 16-23 24-31
3191
;;; 2Lm 08-15 00-07 24-31 16-23
3192
;;; 4Lm 24-31 16-23 08-15 00-07
3193
;;; 1Ll 07-00 15-08 23-16 31-24
3194
;;; 2Ll 07-00 15-08 23-16 31-24
3195
;;; 4Ll 07-00 15-08 23-16 31-24
3197
#+(or Genera lcl3.0 excl)
3199
*image-bit-ordering-table*
3200
'(((1 (00 07) (08 15) (16 23) (24 31)) (nil nil))
3201
((2 (00 07) (08 15) (16 23) (24 31)) (nil nil))
3202
((4 (00 07) (08 15) (16 23) (24 31)) (nil nil))
3203
((1 (07 00) (15 08) (23 16) (31 24)) (nil t))
3204
((2 (15 08) (07 00) (31 24) (23 16)) (nil t))
3205
((4 (31 24) (23 16) (15 08) (07 00)) (nil t))
3206
((1 (00 07) (08 15) (16 23) (24 31)) (t nil))
3207
((2 (08 15) (00 07) (24 31) (16 23)) (t nil))
3208
((4 (24 31) (16 23) (08 15) (00 07)) (t nil))
3209
((1 (07 00) (15 08) (23 16) (31 24)) (t t))
3210
((2 (07 00) (15 08) (23 16) (31 24)) (t t))
3211
((4 (07 00) (15 08) (23 16) (31 24)) (t t))))
3213
#+(or Genera lcl3.0 excl)
3214
(defun compute-image-byte-and-bit-ordering ()
3215
(declare (clx-values image-byte-lsb-first-p image-bit-lsb-first-p))
3216
;; First compute the ordering
3217
(let ((ordering nil)
3218
(a (make-array '(1 32) :element-type 'bit :initial-element 0)))
3220
(push (flet ((bitpos (a i n)
3221
(declare (optimize (speed 3) (safety 0) (space 0)))
3222
(declare (type (simple-array bit (* *)) a)
3224
(with-underlying-simple-vector (v (unsigned-byte 8) a)
3228
(unless (zerop (aref a 0 i))
3230
(setf (aref v i) 0)))))
3231
(list (bitpos a i #b10000000)
3232
(bitpos a i #b00000001)))
3234
(setq ordering (cons (floor +image-unit+ 8) (nreverse ordering)))
3235
;; Now from the ordering, compute byte-lsb-first-p and bit-lsb-first-p
3236
(let ((byte-and-bit-ordering
3237
(second (assoc ordering *image-bit-ordering-table*
3239
(unless byte-and-bit-ordering
3240
(error "Couldn't determine image byte and bit ordering~@
3241
measured image ordering = ~A"
3243
(values-list byte-and-bit-ordering))))
3245
#+(or Genera lcl3.0 excl)
3246
(multiple-value-setq
3247
(*computed-image-byte-lsb-first-p* *computed-image-bit-lsb-first-p*)
3248
(compute-image-byte-and-bit-ordering))
3250
;;; If you can write fast routines that can read and write pixarrays out of a
3251
;;; buffer-bytes, do it! It makes the image code a lot faster. The
3252
;;; FAST-READ-PIXARRAY, FAST-WRITE-PIXARRAY and FAST-COPY-PIXARRAY routines
3253
;;; return T if they can do it, NIL if they can't.
3255
;;; FIXME: though we have some #+sbcl -conditionalized routines in
3256
;;; here, they would appear not to work, and so are commented out in
3257
;;; the the FAST-xxx-PIXARRAY routines themseleves. Investigate
3258
;;; whether the unoptimized routines are often used, and also whether
3259
;;; speeding them up while maintaining correctness is possible.
3261
;;; FAST-READ-PIXARRAY - fill part of a pixarray from a buffer of card8s
3264
(defun fast-read-pixarray-1 (buffer-bbuf index array x y width height
3265
padded-bytes-per-line bits-per-pixel)
3266
(declare (type buffer-bytes buffer-bbuf)
3267
(type pixarray-1 array)
3268
(type card16 x y width height)
3269
(type array-index index padded-bytes-per-line)
3270
(type (member 1 4 8 16 24 32) bits-per-pixel)
3271
(ignore bits-per-pixel))
3273
(with-vector (buffer-bbuf buffer-bytes)
3274
(with-underlying-simple-vector (vector pixarray-1-element-type array)
3275
(do* ((start (index+ index
3276
(index* y padded-bytes-per-line)
3277
(index-ceiling x 8))
3278
(index+ start padded-bytes-per-line))
3280
(left-bits (the array-index (mod (the fixnum (- x)) 8)))
3281
(right-bits (index-mod (index- width left-bits) 8))
3282
(middle-bits (the fixnum (- (the fixnum (- width left-bits))
3284
(middle-bytes (index-floor middle-bits 8)))
3285
((index>= y height))
3286
(declare (type array-index start y
3287
left-bits right-bits middle-bytes)
3288
(fixnum middle-bits))
3289
(cond ((< middle-bits 0)
3290
(let ((byte (aref buffer-bbuf (index1- start)))
3291
(x (array-row-major-index array y left-bits)))
3292
(declare (type card8 byte)
3293
(type array-index x))
3294
(when (index> right-bits 6)
3295
(setf (aref vector (index- x 1))
3296
(read-image-load-byte 1 7 byte)))
3297
(when (and (index> left-bits 1)
3298
(index> right-bits 5))
3299
(setf (aref vector (index- x 2))
3300
(read-image-load-byte 1 6 byte)))
3301
(when (and (index> left-bits 2)
3302
(index> right-bits 4))
3303
(setf (aref vector (index- x 3))
3304
(read-image-load-byte 1 5 byte)))
3305
(when (and (index> left-bits 3)
3306
(index> right-bits 3))
3307
(setf (aref vector (index- x 4))
3308
(read-image-load-byte 1 4 byte)))
3309
(when (and (index> left-bits 4)
3310
(index> right-bits 2))
3311
(setf (aref vector (index- x 5))
3312
(read-image-load-byte 1 3 byte)))
3313
(when (and (index> left-bits 5)
3314
(index> right-bits 1))
3315
(setf (aref vector (index- x 6))
3316
(read-image-load-byte 1 2 byte)))
3317
(when (index> left-bits 6)
3318
(setf (aref vector (index- x 7))
3319
(read-image-load-byte 1 1 byte)))))
3321
(unless (index-zerop left-bits)
3322
(let ((byte (aref buffer-bbuf (index1- start)))
3323
(x (array-row-major-index array y left-bits)))
3324
(declare (type card8 byte)
3325
(type array-index x))
3326
(setf (aref vector (index- x 1))
3327
(read-image-load-byte 1 7 byte))
3328
(when (index> left-bits 1)
3329
(setf (aref vector (index- x 2))
3330
(read-image-load-byte 1 6 byte))
3331
(when (index> left-bits 2)
3332
(setf (aref vector (index- x 3))
3333
(read-image-load-byte 1 5 byte))
3334
(when (index> left-bits 3)
3335
(setf (aref vector (index- x 4))
3336
(read-image-load-byte 1 4 byte))
3337
(when (index> left-bits 4)
3338
(setf (aref vector (index- x 5))
3339
(read-image-load-byte 1 3 byte))
3340
(when (index> left-bits 5)
3341
(setf (aref vector (index- x 6))
3342
(read-image-load-byte 1 2 byte))
3343
(when (index> left-bits 6)
3344
(setf (aref vector (index- x 7))
3345
(read-image-load-byte 1 1 byte))
3347
(do* ((end (index+ start middle-bytes))
3348
(i start (index1+ i))
3349
(x (array-row-major-index array y left-bits) (index+ x 8)))
3351
(unless (index-zerop right-bits)
3352
(let ((byte (aref buffer-bbuf end))
3353
(x (array-row-major-index
3354
array y (index+ left-bits middle-bits))))
3355
(declare (type card8 byte)
3356
(type array-index x))
3357
(setf (aref vector (index+ x 0))
3358
(read-image-load-byte 1 0 byte))
3359
(when (index> right-bits 1)
3360
(setf (aref vector (index+ x 1))
3361
(read-image-load-byte 1 1 byte))
3362
(when (index> right-bits 2)
3363
(setf (aref vector (index+ x 2))
3364
(read-image-load-byte 1 2 byte))
3365
(when (index> right-bits 3)
3366
(setf (aref vector (index+ x 3))
3367
(read-image-load-byte 1 3 byte))
3368
(when (index> right-bits 4)
3369
(setf (aref vector (index+ x 4))
3370
(read-image-load-byte 1 4 byte))
3371
(when (index> right-bits 5)
3372
(setf (aref vector (index+ x 5))
3373
(read-image-load-byte 1 5 byte))
3374
(when (index> right-bits 6)
3375
(setf (aref vector (index+ x 6))
3376
(read-image-load-byte 1 6 byte))
3378
(declare (type array-index end i x))
3379
(let ((byte (aref buffer-bbuf i)))
3380
(declare (type card8 byte))
3381
(setf (aref vector (index+ x 0))
3382
(read-image-load-byte 1 0 byte))
3383
(setf (aref vector (index+ x 1))
3384
(read-image-load-byte 1 1 byte))
3385
(setf (aref vector (index+ x 2))
3386
(read-image-load-byte 1 2 byte))
3387
(setf (aref vector (index+ x 3))
3388
(read-image-load-byte 1 3 byte))
3389
(setf (aref vector (index+ x 4))
3390
(read-image-load-byte 1 4 byte))
3391
(setf (aref vector (index+ x 5))
3392
(read-image-load-byte 1 5 byte))
3393
(setf (aref vector (index+ x 6))
3394
(read-image-load-byte 1 6 byte))
3395
(setf (aref vector (index+ x 7))
3396
(read-image-load-byte 1 7 byte))))
3401
(defun fast-read-pixarray-4 (buffer-bbuf index array x y width height
3402
padded-bytes-per-line bits-per-pixel)
3403
(declare (type buffer-bytes buffer-bbuf)
3404
(type pixarray-4 array)
3405
(type card16 x y width height)
3406
(type array-index index padded-bytes-per-line)
3407
(type (member 1 4 8 16 24 32) bits-per-pixel)
3408
(ignore bits-per-pixel))
3410
(with-vector (buffer-bbuf buffer-bytes)
3411
(with-underlying-simple-vector (vector pixarray-4-element-type array)
3412
(do* ((start (index+ index
3413
(index* y padded-bytes-per-line)
3414
(index-ceiling x 2))
3415
(index+ start padded-bytes-per-line))
3417
(left-nibbles (the array-index (mod (the fixnum (- (the fixnum x)))
3419
(right-nibbles (index-mod (index- width left-nibbles) 2))
3420
(middle-nibbles (index- width left-nibbles right-nibbles))
3421
(middle-bytes (index-floor middle-nibbles 2)))
3422
((index>= y height))
3423
(declare (type array-index start y
3424
left-nibbles right-nibbles middle-nibbles middle-bytes))
3425
(unless (index-zerop left-nibbles)
3426
(setf (aref array y 0)
3427
(read-image-load-byte
3428
4 4 (aref buffer-bbuf (index1- start)))))
3429
(do* ((end (index+ start middle-bytes))
3430
(i start (index1+ i))
3431
(x (array-row-major-index array y left-nibbles) (index+ x 2)))
3433
(unless (index-zerop right-nibbles)
3434
(setf (aref array y (index+ left-nibbles middle-nibbles))
3435
(read-image-load-byte 4 0 (aref buffer-bbuf end)))))
3436
(declare (type array-index end i x))
3437
(let ((byte (aref buffer-bbuf i)))
3438
(declare (type card8 byte))
3439
(setf (aref vector (index+ x 0))
3440
(read-image-load-byte 4 0 byte))
3441
(setf (aref vector (index+ x 1))
3442
(read-image-load-byte 4 4 byte))))
3446
#+(or Genera lcl3.0 excl CMU sbcl)
3447
(defun fast-read-pixarray-24 (buffer-bbuf index array x y width height
3448
padded-bytes-per-line bits-per-pixel)
3449
(declare (type buffer-bytes buffer-bbuf)
3450
(type pixarray-24 array)
3451
(type card16 width height)
3452
(type array-index index padded-bytes-per-line)
3453
(type (member 1 4 8 16 24 32) bits-per-pixel)
3454
(ignore bits-per-pixel))
3456
(with-vector (buffer-bbuf buffer-bytes)
3457
(with-underlying-simple-vector (vector pixarray-24-element-type array)
3458
(do* ((start (index+ index
3459
(index* y padded-bytes-per-line)
3461
(index+ start padded-bytes-per-line))
3463
((index>= y height))
3464
(declare (type array-index start y))
3465
(do* ((end (index+ start (index* width 3)))
3466
(i start (index+ i 3))
3467
(x (array-row-major-index array y 0) (index1+ x)))
3469
(declare (type array-index end i x))
3470
(setf (aref vector x)
3471
(read-image-assemble-bytes
3472
(aref buffer-bbuf (index+ i 0))
3473
(aref buffer-bbuf (index+ i 1))
3474
(aref buffer-bbuf (index+ i 2))))))))
3478
(defun fast-read-pixarray-using-bitblt
3479
(bbuf boffset pixarray x y width height padded-bytes-per-line
3481
(#+Genera sys:stack-let* #-Genera let*
3482
((dimensions (list (+ y height)
3483
(floor (* padded-bytes-per-line 8) bits-per-pixel)))
3486
:element-type (array-element-type pixarray)
3488
:displaced-index-offset (floor (* boffset 8) bits-per-pixel))))
3489
(sys:bitblt boole-1 width height a x y pixarray 0 0))
3493
(defun pixarray-element-size (pixarray)
3494
(let ((eltype (array-element-type pixarray)))
3495
(cond ((eq eltype 'bit) 1)
3496
((and (consp eltype) (eq (first eltype) 'unsigned-byte))
3499
(error "Invalid pixarray: ~S." pixarray)))))
3502
;;; COPY-BIT-RECT -- Internal
3504
;;; This is the classic BITBLT operation, copying a rectangular subarray
3505
;;; from one array to another (but source and destination must not overlap.)
3506
;;; Widths are specified in bits. Neither array can have a non-zero
3507
;;; displacement. We allow extra random bit-offset to be thrown into the X.
3509
(defun copy-bit-rect (source source-width sx sy dest dest-width dx dy
3511
(declare (type array-index source-width sx sy dest-width dx dy height width))
3513
(kernel::with-array-data ((sdata source)
3516
(declare (ignore send))
3517
(kernel::with-array-data ((ddata dest)
3520
(declare (ignore dend))
3521
(assert (and (zerop sstart) (zerop dstart)))
3522
(do ((src-idx (index+ (* vm:vector-data-offset #+cmu vm:word-bits #+sbcl sb-vm:n-word-bits)
3523
sx (index* sy source-width))
3524
(index+ src-idx source-width))
3525
(dest-idx (index+ (* vm:vector-data-offset #+cmu vm:word-bits #+sbcl sb-vm:n-word-bits)
3526
dx (index* dy dest-width))
3527
(index+ dest-idx dest-width))
3528
(count height (1- count)))
3530
(declare (type array-index src-idx dest-idx count))
3531
(kernel:bit-bash-copy sdata src-idx ddata dest-idx width)))))
3535
(defun copy-bit-rect (source source-width sx sy dest dest-width dx dy
3537
(declare (type array-index source-width sx sy dest-width dx dy height width))
3539
(sb-kernel:with-array-data ((sdata source) (sstart) (send))
3540
(declare (ignore send))
3541
(sb-kernel:with-array-data ((ddata dest) (dstart) (dend))
3542
(declare (ignore dend))
3543
(assert (and (zerop sstart) (zerop dstart)))
3544
(do ((src-idx (index+ (* sb-vm:vector-data-offset sb-vm:n-word-bits)
3545
sx (index* sy source-width))
3546
(index+ src-idx source-width))
3547
(dest-idx (index+ (* sb-vm:vector-data-offset sb-vm:n-word-bits)
3548
dx (index* dy dest-width))
3549
(index+ dest-idx dest-width))
3550
(count height (1- count)))
3552
(declare (type array-index src-idx dest-idx count))
3553
(sb-kernel:bit-bash-copy sdata src-idx ddata dest-idx width)))))
3556
(defun fast-read-pixarray-using-bitblt
3557
(bbuf boffset pixarray x y width height padded-bytes-per-line
3559
(declare (type (array * 2) pixarray))
3562
(index* padded-bytes-per-line #+cmu vm:byte-bits #+sbcl sb-vm:n-byte-bits)
3563
(index* boffset #+cmu vm:byte-bits #+sbcl sb-vm:n-byte-bits) 0
3565
(index* (array-dimension pixarray 1) bits-per-pixel)
3568
(index* width bits-per-pixel))
3571
#+(or Genera lcl3.0 excl)
3572
(defun fast-read-pixarray-with-swap
3573
(bbuf boffset pixarray x y width height padded-bytes-per-line
3574
bits-per-pixel unit byte-lsb-first-p bit-lsb-first-p)
3575
(declare (type buffer-bytes bbuf)
3576
(type array-index boffset
3577
padded-bytes-per-line)
3578
(type pixarray pixarray)
3579
(type card16 x y width height)
3580
(type (member 1 4 8 16 24 32) bits-per-pixel)
3581
(type (member 8 16 32) unit)
3582
(type generalized-boolean byte-lsb-first-p bit-lsb-first-p))
3583
(unless (index= bits-per-pixel 24)
3584
(let ((pixarray-padded-bits-per-line
3585
(if (index= height 1) 0
3586
(index* (index- (array-row-major-index pixarray 1 0)
3587
(array-row-major-index pixarray 0 0))
3589
(x-bits (index* x bits-per-pixel)))
3590
(declare (type array-index pixarray-padded-bits-per-line x-bits))
3591
(when (if (eq *computed-image-byte-lsb-first-p* *computed-image-bit-lsb-first-p*)
3592
(and (index-zerop (index-mod pixarray-padded-bits-per-line 8))
3593
(index-zerop (index-mod x-bits 8)))
3594
(and (index-zerop (index-mod pixarray-padded-bits-per-line +image-unit+))
3595
(index-zerop (index-mod x-bits +image-unit+))))
3596
(multiple-value-bind (image-swap-function image-swap-lsb-first-p)
3597
(image-swap-function
3599
unit byte-lsb-first-p bit-lsb-first-p
3600
+image-unit+ *computed-image-byte-lsb-first-p*
3601
*computed-image-bit-lsb-first-p*)
3602
(declare (type symbol image-swap-function)
3603
(type generalized-boolean image-swap-lsb-first-p))
3604
(with-underlying-simple-vector (dst card8 pixarray)
3606
(symbol-function image-swap-function) bbuf dst
3608
(index* y padded-bytes-per-line)
3609
(index-floor x-bits 8))
3610
0 (index-ceiling (index* width bits-per-pixel) 8)
3611
padded-bytes-per-line
3612
(index-floor pixarray-padded-bits-per-line 8)
3613
height image-swap-lsb-first-p)))
3616
(defun fast-read-pixarray (bbuf boffset pixarray
3617
x y width height padded-bytes-per-line
3619
unit byte-lsb-first-p bit-lsb-first-p)
3620
(declare (type buffer-bytes bbuf)
3621
(type array-index boffset
3622
padded-bytes-per-line)
3623
(type pixarray pixarray)
3624
(type card16 x y width height)
3625
(type (member 1 4 8 16 24 32) bits-per-pixel)
3626
(type (member 8 16 32) unit)
3627
(type generalized-boolean byte-lsb-first-p bit-lsb-first-p))
3628
(progn bbuf boffset pixarray x y width height padded-bytes-per-line
3629
bits-per-pixel unit byte-lsb-first-p bit-lsb-first-p)
3631
#+(or Genera lcl3.0 excl)
3632
(fast-read-pixarray-with-swap
3633
bbuf boffset pixarray x y width height padded-bytes-per-line
3634
bits-per-pixel unit byte-lsb-first-p bit-lsb-first-p)
3637
(and (= (sys:array-element-size pixarray) bits-per-pixel)
3638
(zerop (index-mod padded-bytes-per-line 4))
3640
(* #+Genera (sys:array-row-span pixarray)
3641
#-Genera (array-dimension pixarray 1)
3644
#'fast-read-pixarray-using-bitblt)
3646
(and (index= (pixarray-element-size pixarray) bits-per-pixel)
3647
#'fast-read-pixarray-using-bitblt)
3649
(and (index= bits-per-pixel 1)
3650
#'fast-read-pixarray-1)
3652
(and (index= bits-per-pixel 4)
3653
#'fast-read-pixarray-4)
3654
#+(or Genera lcl3.0 excl CMU)
3655
(and (index= bits-per-pixel 24)
3656
#'fast-read-pixarray-24))))
3658
(read-pixarray-internal
3659
bbuf boffset pixarray x y width height padded-bytes-per-line
3660
bits-per-pixel function
3661
unit byte-lsb-first-p bit-lsb-first-p
3662
+image-unit+ +image-byte-lsb-first-p+ +image-bit-lsb-first-p+)))))
3664
;;; FAST-WRITE-PIXARRAY - copy part of a pixarray into an array of CARD8s
3667
(defun fast-write-pixarray-1 (buffer-bbuf index array x y width height
3668
padded-bytes-per-line bits-per-pixel)
3669
(declare (type buffer-bytes buffer-bbuf)
3670
(type pixarray-1 array)
3671
(type card16 x y width height)
3672
(type array-index index padded-bytes-per-line)
3673
(type (member 1 4 8 16 24 32) bits-per-pixel)
3674
(ignore bits-per-pixel))
3676
(with-vector (buffer-bbuf buffer-bytes)
3677
(with-underlying-simple-vector (vector pixarray-1-element-type array)
3678
(do* ((h 0 (index1+ h))
3680
(right-bits (index-mod width 8))
3681
(middle-bits (index- width right-bits))
3682
(middle-bytes (index-ceiling middle-bits 8))
3683
(start index (index+ start padded-bytes-per-line)))
3684
((index>= h height))
3685
(declare (type array-index h y right-bits middle-bits
3686
middle-bytes start))
3687
(do* ((end (index+ start middle-bytes))
3688
(i start (index1+ i))
3690
(x (array-row-major-index array y start-x) (index+ x 8)))
3692
(unless (index-zerop right-bits)
3693
(let ((x (array-row-major-index
3694
array y (index+ start-x middle-bits))))
3695
(declare (type array-index x))
3696
(setf (aref buffer-bbuf end)
3697
(write-image-assemble-bytes
3698
(aref vector (index+ x 0))
3699
(if (index> right-bits 1)
3700
(aref vector (index+ x 1))
3702
(if (index> right-bits 2)
3703
(aref vector (index+ x 2))
3705
(if (index> right-bits 3)
3706
(aref vector (index+ x 3))
3708
(if (index> right-bits 4)
3709
(aref vector (index+ x 4))
3711
(if (index> right-bits 5)
3712
(aref vector (index+ x 5))
3714
(if (index> right-bits 6)
3715
(aref vector (index+ x 6))
3718
(declare (type array-index end i start-x x))
3719
(setf (aref buffer-bbuf i)
3720
(write-image-assemble-bytes
3721
(aref vector (index+ x 0))
3722
(aref vector (index+ x 1))
3723
(aref vector (index+ x 2))
3724
(aref vector (index+ x 3))
3725
(aref vector (index+ x 4))
3726
(aref vector (index+ x 5))
3727
(aref vector (index+ x 6))
3728
(aref vector (index+ x 7))))))))
3732
(defun fast-write-pixarray-4 (buffer-bbuf index array x y width height
3733
padded-bytes-per-line bits-per-pixel)
3734
(declare (type buffer-bytes buffer-bbuf)
3735
(type pixarray-4 array)
3737
(type card16 width height)
3738
(type array-index index padded-bytes-per-line)
3739
(type (member 1 4 8 16 24 32) bits-per-pixel)
3740
(ignore bits-per-pixel))
3742
(with-vector (buffer-bbuf buffer-bytes)
3743
(with-underlying-simple-vector (vector pixarray-4-element-type array)
3744
(do* ((h 0 (index1+ h))
3746
(right-nibbles (index-mod width 2))
3747
(middle-nibbles (index- width right-nibbles))
3748
(middle-bytes (index-ceiling middle-nibbles 2))
3749
(start index (index+ start padded-bytes-per-line)))
3750
((index>= h height))
3751
(declare (type array-index h y right-nibbles middle-nibbles
3752
middle-bytes start))
3753
(do* ((end (index+ start middle-bytes))
3754
(i start (index1+ i))
3756
(x (array-row-major-index array y start-x) (index+ x 2)))
3758
(unless (index-zerop right-nibbles)
3759
(setf (aref buffer-bbuf end)
3760
(write-image-assemble-bytes
3761
(aref array y (index+ start-x middle-nibbles))
3763
(declare (type array-index end i start-x x))
3764
(setf (aref buffer-bbuf i)
3765
(write-image-assemble-bytes
3766
(aref vector (index+ x 0))
3767
(aref vector (index+ x 1))))))))
3770
#+(or Genera lcl3.0 excl CMU sbcl)
3771
(defun fast-write-pixarray-24 (buffer-bbuf index array x y width height
3772
padded-bytes-per-line bits-per-pixel)
3773
(declare (type buffer-bytes buffer-bbuf)
3774
(type pixarray-24 array)
3776
(type card16 width height)
3777
(type array-index index padded-bytes-per-line)
3778
(type (member 1 4 8 16 24 32) bits-per-pixel)
3779
(ignore bits-per-pixel))
3781
(with-vector (buffer-bbuf buffer-bytes)
3782
(with-underlying-simple-vector (vector pixarray-24-element-type array)
3783
(do* ((h 0 (index1+ h))
3785
(start index (index+ start padded-bytes-per-line)))
3786
((index>= h height))
3787
(declare (type array-index y start))
3788
(do* ((end (index+ start (index* width 3)))
3789
(i start (index+ i 3))
3790
(x (array-row-major-index array y x) (index1+ x)))
3792
(declare (type array-index end i x))
3793
(let ((pixel (aref vector x)))
3794
(declare (type pixarray-24-element-type pixel))
3795
(setf (aref buffer-bbuf (index+ i 0))
3796
(write-image-load-byte 0 pixel 24))
3797
(setf (aref buffer-bbuf (index+ i 1))
3798
(write-image-load-byte 8 pixel 24))
3799
(setf (aref buffer-bbuf (index+ i 2))
3800
(write-image-load-byte 16 pixel 24)))))))
3804
(defun fast-write-pixarray-using-bitblt
3805
(bbuf boffset pixarray x y width height padded-bytes-per-line
3807
(#+Genera sys:stack-let* #-Genera let*
3808
((dimensions (list (+ y height)
3809
(floor (* padded-bytes-per-line 8) bits-per-pixel)))
3812
:element-type (array-element-type pixarray)
3814
:displaced-index-offset (floor (* boffset 8) bits-per-pixel))))
3815
(sys:bitblt boole-1 width height pixarray x y a 0 0))
3819
(defun fast-write-pixarray-using-bitblt
3820
(bbuf boffset pixarray x y width height padded-bytes-per-line
3823
(copy-bit-rect pixarray
3824
(index* (array-dimension pixarray 1) bits-per-pixel)
3827
(index* padded-bytes-per-line #+cmu vm:byte-bits #+sbcl sb-vm:n-byte-bits)
3828
(index* boffset #+cmu vm:byte-bits #+sbcl sb-vm:n-byte-bits) 0
3830
(index* width bits-per-pixel))
3833
#+(or Genera lcl3.0 excl)
3834
(defun fast-write-pixarray-with-swap
3835
(bbuf boffset pixarray x y width height padded-bytes-per-line
3836
bits-per-pixel unit byte-lsb-first-p bit-lsb-first-p)
3837
(declare (type buffer-bytes bbuf)
3838
(type pixarray pixarray)
3839
(type card16 x y width height)
3840
(type array-index boffset padded-bytes-per-line)
3841
(type (member 1 4 8 16 24 32) bits-per-pixel)
3842
(type (member 8 16 32) unit)
3843
(type generalized-boolean byte-lsb-first-p bit-lsb-first-p))
3844
(unless (index= bits-per-pixel 24)
3845
(let ((pixarray-padded-bits-per-line
3846
(if (index= height 1) 0
3847
(index* (index- (array-row-major-index pixarray 1 0)
3848
(array-row-major-index pixarray 0 0))
3850
(pixarray-start-bit-offset
3851
(index* (array-row-major-index pixarray y x)
3853
(declare (type array-index pixarray-padded-bits-per-line
3854
pixarray-start-bit-offset))
3855
(when (if (eq *computed-image-byte-lsb-first-p* *computed-image-bit-lsb-first-p*)
3856
(and (index-zerop (index-mod pixarray-padded-bits-per-line 8))
3857
(index-zerop (index-mod pixarray-start-bit-offset 8)))
3858
(and (index-zerop (index-mod pixarray-padded-bits-per-line +image-unit+))
3859
(index-zerop (index-mod pixarray-start-bit-offset +image-unit+))))
3860
(multiple-value-bind (image-swap-function image-swap-lsb-first-p)
3861
(image-swap-function
3863
+image-unit+ *computed-image-byte-lsb-first-p*
3864
*computed-image-bit-lsb-first-p*
3865
unit byte-lsb-first-p bit-lsb-first-p)
3866
(declare (type symbol image-swap-function)
3867
(type generalized-boolean image-swap-lsb-first-p))
3868
(with-underlying-simple-vector (src card8 pixarray)
3870
(symbol-function image-swap-function)
3871
src bbuf (index-floor pixarray-start-bit-offset 8) boffset
3872
(index-ceiling (index* width bits-per-pixel) 8)
3873
(index-floor pixarray-padded-bits-per-line 8)
3874
padded-bytes-per-line height image-swap-lsb-first-p))
3877
(defun fast-write-pixarray (bbuf boffset pixarray x y width height
3878
padded-bytes-per-line bits-per-pixel
3879
unit byte-lsb-first-p bit-lsb-first-p)
3880
(declare (type buffer-bytes bbuf)
3881
(type pixarray pixarray)
3882
(type card16 x y width height)
3883
(type array-index boffset padded-bytes-per-line)
3884
(type (member 1 4 8 16 24 32) bits-per-pixel)
3885
(type (member 8 16 32) unit)
3886
(type generalized-boolean byte-lsb-first-p bit-lsb-first-p))
3887
(progn bbuf boffset pixarray x y width height padded-bytes-per-line
3888
bits-per-pixel unit byte-lsb-first-p bit-lsb-first-p)
3890
#+(or Genera lcl3.0 excl)
3891
(fast-write-pixarray-with-swap
3892
bbuf boffset pixarray x y width height padded-bytes-per-line
3893
bits-per-pixel unit byte-lsb-first-p bit-lsb-first-p)
3896
(and (= (sys:array-element-size pixarray) bits-per-pixel)
3897
(zerop (index-mod padded-bytes-per-line 4))
3899
(* #+Genera (sys:array-row-span pixarray)
3900
#-Genera (array-dimension pixarray 1)
3903
#'fast-write-pixarray-using-bitblt)
3905
(and (index= (pixarray-element-size pixarray) bits-per-pixel)
3906
#'fast-write-pixarray-using-bitblt)
3908
(and (index= bits-per-pixel 1)
3909
#'fast-write-pixarray-1)
3911
(and (index= bits-per-pixel 4)
3912
#'fast-write-pixarray-4)
3913
#+(or Genera lcl3.0 excl CMU)
3914
(and (index= bits-per-pixel 24)
3915
#'fast-write-pixarray-24))))
3917
(write-pixarray-internal
3918
bbuf boffset pixarray x y width height padded-bytes-per-line
3919
bits-per-pixel function
3920
+image-unit+ +image-byte-lsb-first-p+ +image-bit-lsb-first-p+
3921
unit byte-lsb-first-p bit-lsb-first-p)))))
3923
;;; FAST-COPY-PIXARRAY - copy part of a pixarray into another
3925
(defun fast-copy-pixarray (pixarray copy x y width height bits-per-pixel)
3926
(declare (type pixarray pixarray copy)
3927
(type card16 x y width height)
3928
(type (member 1 4 8 16 24 32) bits-per-pixel))
3929
(progn pixarray copy x y width height bits-per-pixel nil)
3932
(let* ((pixarray-padded-pixels-per-line
3933
#+Genera (sys:array-row-span pixarray)
3934
#-Genera (array-dimension pixarray 1))
3935
(pixarray-padded-bits-per-line
3936
(* pixarray-padded-pixels-per-line bits-per-pixel))
3937
(copy-padded-pixels-per-line
3938
#+Genera (sys:array-row-span copy)
3939
#-Genera (array-dimension copy 1))
3940
(copy-padded-bits-per-line
3941
(* copy-padded-pixels-per-line bits-per-pixel)))
3943
(when (and (= (sys:array-element-size pixarray) bits-per-pixel)
3944
(zerop (index-mod pixarray-padded-bits-per-line 32))
3945
(zerop (index-mod copy-padded-bits-per-line 32)))
3946
(sys:bitblt boole-1 width height pixarray x y copy 0 0)
3949
(when (index= (pixarray-element-size pixarray)
3950
(pixarray-element-size copy)
3952
(copy-bit-rect pixarray pixarray-padded-bits-per-line x y
3953
copy copy-padded-bits-per-line 0 0
3955
(index* width bits-per-pixel))
3959
(unless (index= bits-per-pixel 24)
3960
(let ((pixarray-padded-bits-per-line
3961
(if (index= height 1) 0
3962
(index* (index- (array-row-major-index pixarray 1 0)
3963
(array-row-major-index pixarray 0 0))
3965
(copy-padded-bits-per-line
3966
(if (index= height 1) 0
3967
(index* (index- (array-row-major-index copy 1 0)
3968
(array-row-major-index copy 0 0))
3970
(pixarray-start-bit-offset
3971
(index* (array-row-major-index pixarray y x)
3973
(declare (type array-index pixarray-padded-bits-per-line
3974
copy-padded-bits-per-line pixarray-start-bit-offset))
3975
(when (if (eq *computed-image-byte-lsb-first-p* *computed-image-bit-lsb-first-p*)
3976
(and (index-zerop (index-mod pixarray-padded-bits-per-line 8))
3977
(index-zerop (index-mod copy-padded-bits-per-line 8))
3978
(index-zerop (index-mod pixarray-start-bit-offset 8)))
3979
(and (index-zerop (index-mod pixarray-padded-bits-per-line +image-unit+))
3980
(index-zerop (index-mod copy-padded-bits-per-line +image-unit+))
3981
(index-zerop (index-mod pixarray-start-bit-offset +image-unit+))))
3982
(with-underlying-simple-vector (src card8 pixarray)
3983
(with-underlying-simple-vector (dst card8 copy)
3986
(index-floor pixarray-start-bit-offset 8) 0
3987
(index-ceiling (index* width bits-per-pixel) 8)
3988
(index-floor pixarray-padded-bits-per-line 8)
3989
(index-floor copy-padded-bits-per-line 8)
3994
((copy (type element-type)
3995
`(let ((pixarray pixarray)
3997
(declare (type ,type pixarray copy))
3999
(with-underlying-simple-vector (src ,element-type pixarray)
4000
(with-underlying-simple-vector (dst ,element-type copy)
4001
(do* ((dst-y 0 (index1+ dst-y))
4002
(src-y y (index1+ src-y)))
4003
((index>= dst-y height))
4004
(declare (type card16 dst-y src-y))
4005
(do* ((dst-idx (array-row-major-index copy dst-y 0)
4007
(dst-end (index+ dst-idx width))
4008
(src-idx (array-row-major-index pixarray src-y x)
4010
((index>= dst-idx dst-end))
4011
(declare (type array-index dst-idx src-idx dst-end))
4012
(setf (aref dst dst-idx)
4013
(the ,element-type (aref src src-idx))))))))))
4014
(ecase bits-per-pixel
4015
(1 (copy pixarray-1 pixarray-1-element-type))
4016
(4 (copy pixarray-4 pixarray-4-element-type))
4017
(8 (copy pixarray-8 pixarray-8-element-type))
4018
(16 (copy pixarray-16 pixarray-16-element-type))
4019
(24 (copy pixarray-24 pixarray-24-element-type))
4020
(32 (copy pixarray-32 pixarray-32-element-type)))
added
removed
src/clx/dependent.lisp
