Import X server from vnc-3.3.7.

[rdpsrv] / Xserver / include / extensions / lbxdeltastr.h

diff --git a/Xserver/include/extensions/lbxdeltastr.h b/Xserver/include/extensions/lbxdeltastr.h
new file mode 100644 (file)
index 0000000..af7577c
--- /dev/null
+++ b/Xserver/include/extensions/lbxdeltastr.h
@@ -0,0 +1,91 @@
+/* $XConsortium: lbxdeltastr.h /main/7 1996/12/15 21:24:04 rws $ */
+/*
+ * Copyright 1993 Network Computing Devices
+ *
+ * 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 of NCD. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  NCD. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * NCD. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NCD.
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#ifndef LBX_DELTA_STRUCT_H
+#define LBX_DELTA_STRUCT_H
+
+#define MIN_CACHEABLE_LEN              8
+
+#define DELTA_CACHEABLE(pcache, len)   \
+       ((len) > MIN_CACHEABLE_LEN && (len) <= (pcache)->maxDeltasize)
+
+/*
+ * An entry in the delta compactor cache
+ */
+typedef struct _LBXDeltaElem {
+    int                        length;
+    unsigned char      *buf;
+} LBXDeltaElemRec, *LBXDeltaElemPtr;
+
+
+/*
+ * Delta compactor cache
+ */
+typedef struct _LBXDeltas {
+    unsigned short     nDeltas;
+    unsigned short     maxDeltasize;
+    LBXDeltaElemPtr    deltas;
+    unsigned short     nextDelta;
+    unsigned short     activeDeltas;   /* only needed for outgoing */
+} LBXDeltasRec, *LBXDeltasPtr;
+
+
+/*
+ * Motion delta cache
+ */
+
+typedef struct {
+    BYTE swapped;
+    BYTE detail;
+    CARD16 sequenceNumber B16;
+    Time time B32;
+    Window root B32, event B32, child B32;
+    INT16 rootX B16, rootY B16, eventX B16, eventY B16;
+    KeyButMask state B16;
+    BOOL sameScreen;           
+} lbxMotionCache;
+
+
+/*
+ * Motion delta events
+ */
+
+typedef struct {
+    BYTE type;         /* always eventBase + LbxQuickMotionDeltaEvent */
+    CARD8 deltaTime;
+    INT8 deltaX;
+    INT8 deltaY;
+} lbxQuickMotionDeltaEvent;
+#define sz_lbxQuickMotionDeltaEvent 4
+
+typedef struct {
+    BYTE type;         /* always eventBase + LbxEvent */
+    BYTE lbxType;      /* LbxMotionDeltaEvent */
+    INT8 deltaX;
+    INT8 deltaY;
+    CARD16 deltaTime B16;
+    CARD16 deltaSequence B16;
+} lbxMotionDeltaEvent;
+#define sz_lbxMotionDeltaEvent 8
+
+#endif /* LBX_DELTA_STRUCT_H */