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- /*
- * $XConsortium: XShape.c,v 1.22 91/01/12 11:19:44 rws Exp $
- *
- * Copyright 1989 Massachusetts Institute of Technology
- *
- * 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 M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
- * 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.
- *
- * Author: Keith Packard, MIT X Consortium
- */
- #define NEED_EVENTS
- #define NEED_REPLIES
- #include <X11/Xlibint.h>
- #include <X11/Xutil.h>
- #include "region.h" /* in Xlib sources */
- #include "Xext.h" /* in ../include */
- #include "extutil.h" /* in ../include */
- #include "shapestr.h" /* in ../include */
-
- static XExtensionInfo _shape_info_data;
- static XExtensionInfo *shape_info = &_shape_info_data;
- static /* const */ char *shape_extension_name = SHAPENAME;
-
- #define ShapeCheckExtension(dpy,i,val) \
- XextCheckExtension (dpy, i, shape_extension_name, val)
- #define ShapeSimpleCheckExtension(dpy,i) \
- XextSimpleCheckExtension (dpy, i, shape_extension_name)
-
-
- /*****************************************************************************
- * *
- * private utility routines *
- * *
- *****************************************************************************/
-
- static int close_display();
- static Bool wire_to_event();
- static Status event_to_wire();
- static /* const */ XExtensionHooks shape_extension_hooks = {
- NULL, /* create_gc */
- NULL, /* copy_gc */
- NULL, /* flush_gc */
- NULL, /* free_gc */
- NULL, /* create_font */
- NULL, /* free_font */
- close_display, /* close_display */
- wire_to_event, /* wire_to_event */
- event_to_wire, /* event_to_wire */
- NULL, /* error */
- NULL, /* error_string */
- };
-
- static XEXT_GENERATE_FIND_DISPLAY (find_display, shape_info,
- shape_extension_name,
- &shape_extension_hooks,
- ShapeNumberEvents, NULL)
-
- static XEXT_GENERATE_CLOSE_DISPLAY (close_display, shape_info)
-
-
- static Bool wire_to_event (dpy, re, event)
- Display *dpy;
- XEvent *re;
- xEvent *event;
- {
- XExtDisplayInfo *info = find_display (dpy);
- XShapeEvent *se;
- xShapeNotifyEvent *sevent;
-
- ShapeCheckExtension (dpy, info, False);
-
- switch ((event->u.u.type & 0x7f) - info->codes->first_event) {
- case ShapeNotify:
- se = (XShapeEvent *) re;
- sevent = (xShapeNotifyEvent *) event;
- se->type = sevent->type & 0x7f;
- se->serial = _XSetLastRequestRead(dpy,(xGenericReply *) event);
- se->send_event = (sevent->type & 0x80) != 0;
- se->display = dpy;
- se->window = sevent->window;
- se->kind = sevent->kind;
- se->x = cvtINT16toInt (sevent->x);
- se->y = cvtINT16toInt (sevent->y);
- se->width = sevent->width;
- se->height = sevent->height;
- se->time = sevent->time;
- se->shaped = True;
- if (sevent->shaped == xFalse)
- se->shaped = False;
- return True;
- }
- return False;
- }
-
- static Status event_to_wire (dpy, re, event)
- Display *dpy;
- XEvent *re;
- xEvent *event;
- {
- XExtDisplayInfo *info = find_display (dpy);
- XShapeEvent *se;
- xShapeNotifyEvent *sevent;
-
- ShapeCheckExtension (dpy, info, 0);
-
- switch ((re->type & 0x7f) - info->codes->first_event) {
- case ShapeNotify:
- se = (XShapeEvent *) re;
- sevent = (xShapeNotifyEvent *) event;
- sevent->type = se->type | (se->send_event ? 0x80 : 0);
- sevent->sequenceNumber = se->serial & 0xffff;
- sevent->window = se->window;
- sevent->kind = se->kind;
- sevent->x = se->x;
- sevent->y = se->y;
- sevent->width = se->width;
- sevent->height = se->height;
- sevent->time = se->time;
- return 1;
- }
- return 0;
- }
-
-
- /****************************************************************************
- * *
- * Shape public interfaces *
- * *
- ****************************************************************************/
-
- Bool XShapeQueryExtension (dpy, event_basep, error_basep)
- Display *dpy;
- int *event_basep, *error_basep;
- {
- XExtDisplayInfo *info = find_display (dpy);
-
- if (XextHasExtension(info)) {
- *event_basep = info->codes->first_event;
- *error_basep = info->codes->first_error;
- return True;
- } else {
- return False;
- }
- }
-
-
- Status XShapeQueryVersion(dpy, major_versionp, minor_versionp)
- Display *dpy;
- int *major_versionp, *minor_versionp;
- {
- XExtDisplayInfo *info = find_display (dpy);
- xShapeQueryVersionReply rep;
- register xShapeQueryVersionReq *req;
-
- ShapeCheckExtension (dpy, info, 0);
-
- LockDisplay (dpy);
- GetReq (ShapeQueryVersion, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeQueryVersion;
- if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
- UnlockDisplay (dpy);
- SyncHandle ();
- return 0;
- }
- *major_versionp = rep.majorVersion;
- *minor_versionp = rep.minorVersion;
- UnlockDisplay (dpy);
- SyncHandle ();
- return 1;
- }
-
- void XShapeCombineRegion(dpy, dest, destKind, xOff, yOff, r, op)
- register Display *dpy;
- Window dest;
- int destKind, op, xOff, yOff;
- register REGION *r;
- {
- register int i;
- register XRectangle *xr, *pr;
- register BOX *pb;
-
- xr = (XRectangle *)
- _XAllocScratch(dpy, (unsigned long)(r->numRects * sizeof (XRectangle)));
- for (pr = xr, pb = r->rects, i = r->numRects; --i >= 0; pr++, pb++) {
- pr->x = pb->x1;
- pr->y = pb->y1;
- pr->width = pb->x2 - pb->x1;
- pr->height = pb->y2 - pb->y1;
- }
- XShapeCombineRectangles (dpy, dest, destKind, xOff, yOff,
- xr, r->numRects, op, YXBanded);
- }
-
-
- void XShapeCombineRectangles (dpy, dest, destKind, xOff, yOff,
- rects, n_rects, op, ordering)
- register Display *dpy;
- XID dest;
- int op, xOff, yOff, ordering;
- XRectangle *rects;
- int n_rects;
- {
- XExtDisplayInfo *info = find_display (dpy);
- register xShapeRectanglesReq *req;
- register long nbytes;
-
- ShapeSimpleCheckExtension (dpy, info);
-
- LockDisplay(dpy);
- GetReq(ShapeRectangles, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeRectangles;
- req->op = op;
- req->ordering = ordering;
- req->destKind = destKind;
- req->dest = dest;
- req->xOff = xOff;
- req->yOff = yOff;
-
- /* SIZEOF(xRectangle) will be a multiple of 4 */
- req->length += n_rects * (SIZEOF(xRectangle) / 4);
-
- nbytes = n_rects * sizeof(xRectangle);
-
- Data16 (dpy, (short *) rects, nbytes);
- UnlockDisplay(dpy);
- SyncHandle();
- }
-
-
- void XShapeCombineMask (dpy, dest, destKind, xOff, yOff, src, op)
- register Display *dpy;
- int destKind;
- XID dest;
- Pixmap src;
- int op, xOff, yOff;
- {
- XExtDisplayInfo *info = find_display (dpy);
- register xShapeMaskReq *req;
-
- ShapeSimpleCheckExtension (dpy, info);
-
- LockDisplay(dpy);
- GetReq(ShapeMask, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeMask;
- req->op = op;
- req->destKind = destKind;
- req->dest = dest;
- req->xOff = xOff;
- req->yOff = yOff;
- req->src = src;
- UnlockDisplay(dpy);
- SyncHandle();
- }
-
- void XShapeCombineShape (dpy, dest, destKind, xOff, yOff, src, srcKind, op)
- register Display *dpy;
- int destKind;
- XID dest;
- int srcKind;
- XID src;
- int op, xOff, yOff;
- {
- XExtDisplayInfo *info = find_display (dpy);
- register xShapeCombineReq *req;
-
- ShapeSimpleCheckExtension (dpy, info);
-
- LockDisplay(dpy);
- GetReq(ShapeCombine, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeCombine;
- req->op = op;
- req->destKind = destKind;
- req->srcKind = srcKind;
- req->dest = dest;
- req->xOff = xOff;
- req->yOff = yOff;
- req->src = src;
- UnlockDisplay(dpy);
- SyncHandle();
- }
-
- void XShapeOffsetShape (dpy, dest, destKind, xOff, yOff)
- register Display *dpy;
- int destKind;
- XID dest;
- int xOff, yOff;
- {
- XExtDisplayInfo *info = find_display (dpy);
- register xShapeOffsetReq *req;
-
- ShapeSimpleCheckExtension (dpy, info);
-
- LockDisplay(dpy);
- GetReq(ShapeOffset, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeOffset;
- req->destKind = destKind;
- req->dest = dest;
- req->xOff = xOff;
- req->yOff = yOff;
- UnlockDisplay(dpy);
- SyncHandle();
- }
-
- Status XShapeQueryExtents (dpy, window,
- bShaped, xbs, ybs, wbs, hbs,
- cShaped, xcs, ycs, wcs, hcs)
- register Display *dpy;
- Window window;
- int *bShaped, *cShaped; /* RETURN */
- int *xbs, *ybs, *xcs, *ycs; /* RETURN */
- unsigned int *wbs, *hbs, *wcs, *hcs; /* RETURN */
- {
- XExtDisplayInfo *info = find_display (dpy);
- xShapeQueryExtentsReply rep;
- register xShapeQueryExtentsReq *req;
-
- ShapeCheckExtension (dpy, info, 0);
-
- LockDisplay (dpy);
- GetReq (ShapeQueryExtents, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeQueryExtents;
- req->window = window;
- if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
- UnlockDisplay (dpy);
- SyncHandle ();
- return 0;
- }
- *bShaped = rep.boundingShaped;
- *cShaped = rep.clipShaped;
- *xbs = cvtINT16toInt (rep.xBoundingShape);
- *ybs = cvtINT16toInt (rep.yBoundingShape);
- *wbs = rep.widthBoundingShape;
- *hbs = rep.heightBoundingShape;
- *xcs = cvtINT16toInt (rep.xClipShape);
- *ycs = cvtINT16toInt (rep.yClipShape);
- *wcs = rep.widthClipShape;
- *hcs = rep.heightClipShape;
- UnlockDisplay (dpy);
- SyncHandle ();
- return 1;
- }
-
-
- void XShapeSelectInput (dpy, window, mask)
- register Display *dpy;
- Window window;
- unsigned long mask;
- {
- XExtDisplayInfo *info = find_display (dpy);
- register xShapeSelectInputReq *req;
-
- ShapeSimpleCheckExtension (dpy, info);
-
- LockDisplay (dpy);
- GetReq (ShapeSelectInput, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeSelectInput;
- req->window = window;
- if (mask & ShapeNotifyMask)
- req->enable = xTrue;
- else
- req->enable = xFalse;
- UnlockDisplay (dpy);
- SyncHandle ();
- }
-
- unsigned long XShapeInputSelected (dpy, window)
- register Display *dpy;
- Window window;
- {
- XExtDisplayInfo *info = find_display (dpy);
- register xShapeInputSelectedReq *req;
- xShapeInputSelectedReply rep;
-
- ShapeCheckExtension (dpy, info, False);
-
- LockDisplay (dpy);
- GetReq (ShapeInputSelected, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeInputSelected;
- req->window = window;
- if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
- UnlockDisplay (dpy);
- SyncHandle ();
- return False;
- }
- UnlockDisplay (dpy);
- SyncHandle ();
- return rep.enabled ? ShapeNotifyMask : 0L;
- }
-
-
- XRectangle *XShapeGetRectangles (dpy, window, kind, count, ordering)
- register Display *dpy;
- Window window;
- int kind;
- int *count; /* RETURN */
- int *ordering; /* RETURN */
- {
- XExtDisplayInfo *info = find_display (dpy);
- register xShapeGetRectanglesReq *req;
- xShapeGetRectanglesReply rep;
- XRectangle *rects;
- xRectangle *xrects;
- int i;
-
- ShapeCheckExtension (dpy, info, (XRectangle *)NULL);
-
- LockDisplay (dpy);
- GetReq (ShapeGetRectangles, req);
- req->reqType = info->codes->major_opcode;
- req->shapeReqType = X_ShapeGetRectangles;
- req->window = window;
- req->kind = kind;
- if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
- UnlockDisplay (dpy);
- SyncHandle ();
- return (XRectangle *)NULL;
- }
- *count = rep.nrects;
- *ordering = rep.ordering;
- rects = 0;
- if (*count) {
- xrects = (xRectangle *) Xmalloc (*count * sizeof (xRectangle));
- rects = (XRectangle *) Xmalloc (*count * sizeof (XRectangle));
- if (!xrects || !rects) {
- if (xrects)
- Xfree (xrects);
- if (rects)
- Xfree (rects);
- _XEatData (dpy, *count * sizeof (xRectangle));
- rects = 0;
- *count = 0;
- } else {
- _XRead (dpy, (char *) xrects, *count * sizeof (xRectangle));
- for (i = 0; i < *count; i++) {
- rects[i].x = (short) cvtINT16toInt (xrects[i].x);
- rects[i].y = (short) cvtINT16toInt (xrects[i].y);
- rects[i].width = xrects[i].width;
- rects[i].height = xrects[i].height;
- }
- Xfree (xrects);
- }
- }
- UnlockDisplay (dpy);
- SyncHandle ();
- return rects;
- }
-