1 files changed, 133 insertions, 0 deletions
diff --git a/xc/include/extensions/lbxopts.h b/xc/include/extensions/lbxopts.h
new file mode 100644
index 000000000..7da54cd1f
--- /dev/null
+++ b/xc/include/extensions/lbxopts.h
@@ -0,0 +1,133 @@
+/* $XConsortium: lbxopts.h /main/9 1996/11/15 21:33:35 rws $ */
+/*
+ * Copyright 1994 Network Computing Devices, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name Network Computing Devices, Inc. not be
+ * used in advertising or publicity pertaining to distribution of this
+ * software without specific, written prior permission.
+ *
+ * THIS SOFTWARE IS PROVIDED `AS-IS'.  NETWORK COMPUTING DEVICES, INC.,
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT
+ * LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, OR NONINFRINGEMENT.  IN NO EVENT SHALL NETWORK
+ * COMPUTING DEVICES, INC., BE LIABLE FOR ANY DAMAGES WHATSOEVER, INCLUDING
+ * SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF USE, DATA,
+ * OR PROFITS, EVEN IF ADVISED OF THE POSSIBILITY THEREOF, AND REGARDLESS OF
+ * WHETHER IN AN ACTION IN CONTRACT, TORT OR NEGLIGENCE, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+/* $XFree86: xc/include/extensions/lbxopts.h,v 1.3 1997/01/18 07:17:15 dawes Exp $ */
+
+#ifndef _LBX_OPTS_H_
+#define _LBX_OPTS_H_
+
+/*
+ * Negotiable configuration options
+ */
+#define LBX_OPT_DELTA_PROXY		0
+#define LBX_OPT_DELTA_SERVER		1
+#define LBX_OPT_STREAM_COMP		2
+#define LBX_OPT_BITMAP_COMP		3
+#define LBX_OPT_PIXMAP_COMP		4
+#define LBX_OPT_MSG_COMP		5	/* aka "squishing" */
+#define LBX_OPT_USE_TAGS		6
+#define LBX_OPT_CMAP_ALL		7
+#define LBX_OPT_EXTENSION		255
+
+/*
+ * Length fields are encoded in 1 or 3 bytes
+ */
+#define LBX_OPT_SMALLLEN_SIZE		1
+#define LBX_OPT_BIGLEN_SIZE		3
+#define LBX_OPT_BIGLEN_MIN		256
+
+#define LBX_OPT_DECODE_LEN(p, len, size) \
+    if ((p)[0]) { \
+	(len) = (p)[0]; \
+	(size) = LBX_OPT_SMALLLEN_SIZE; \
+    } \
+    else { \
+	(len) = LBX_OPT_BIGLEN_MIN + (p)[1] << 8 | (p)[2]; \
+	(size) = LBX_OPT_BIGLEN_SIZE; \
+    }
+
+/*
+ * Option header lengths
+ */
+#define LBX_OPT_SMALLHDR_LEN		(1 + LBX_OPT_SMALLLEN_SIZE)
+#define LBX_OPT_BIGHDR_LEN		(1 + LBX_OPT_BIGLEN_SIZE)
+
+/*
+ * Delta compression parameters
+ */
+#define LBX_OPT_DELTA_REQLEN		6
+#define LBX_OPT_DELTA_REPLYLEN		2
+#define LBX_OPT_DELTA_NCACHE_DFLT	16
+#define LBX_OPT_DELTA_MSGLEN_MIN	32
+#define LBX_OPT_DELTA_MSGLEN_DFLT	64
+
+
+/*
+ * Stream compression opts
+ */
+
+#include <sys/types.h>
+
+#if defined(WIN32) || (defined(USG) && !defined(CRAY) && !defined(umips) && !defined(MOTOROLA) && !defined(uniosu) && !defined(__sxg__))
+
+struct iovec {
+    caddr_t iov_base;
+    int iov_len;
+};
+
+#else
+#ifndef Lynx
+#include <sys/uio.h>
+#else
+#include <uio.h>
+#endif
+#endif
+
+typedef void *LbxStreamCompHandle;
+
+typedef struct _LbxStreamOpts {
+    LbxStreamCompHandle	(*streamCompInit)();
+    pointer		streamCompArg;
+    int			(*streamCompStuffInput)(
+			    int fd,
+			    unsigned char *buf,
+			    int buflen
+			);
+    int			(*streamCompInputAvail)(
+			    int fd
+			);
+    int			(*streamCompFlush)(
+			    int fd
+			);
+    int			(*streamCompRead)(
+			    int fd,
+			    unsigned char *buf,
+			    int buflen
+			);
+    int         	(*streamCompWriteV)(
+			    int fd,
+			    struct iovec *iov,
+			    int iovcnt
+			);
+    void		(*streamCompOn)(
+			    int fd
+			);
+    void		(*streamCompOff)(
+			    int fd
+			);
+    void		(*streamCompFreeHandle)(
+			    LbxStreamCompHandle handle
+			);
+} LbxStreamOpts;
+
+#endif /* _LBX_OPTS_H_ */