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70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*
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* Copyright © 2004 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "Xrenderint.h"
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#define NLOCAL 256
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void
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XRenderAddTraps (Display *dpy,
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Picture picture,
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int xOff,
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int yOff,
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_Xconst XTrap *traps,
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int ntrap)
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{
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XRenderExtDisplayInfo *info = XRenderFindDisplay (dpy);
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unsigned long max_req = dpy->bigreq_size ? dpy->bigreq_size : dpy->max_request_size;
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RenderSimpleCheckExtension (dpy, info);
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LockDisplay(dpy);
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while (ntrap)
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{
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xRenderAddTrapsReq *req;
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int n;
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unsigned long len;
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GetReq(RenderAddTraps, req);
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req->reqType = (CARD8) info->codes->major_opcode;
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req->renderReqType = X_RenderAddTraps;
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req->picture = (CARD32) picture;
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req->xOff = (INT16) xOff;
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req->yOff = (INT16) yOff;
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n = ntrap;
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len = ((unsigned long) n) * (SIZEOF (xTrap) >> 2);
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if (len > (max_req - req->length)) {
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n = (int) ((max_req - req->length) / (SIZEOF (xTrap) >> 2));
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len = ((unsigned long) n) * (SIZEOF (xTrap) >> 2);
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}
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SetReqLen (req, len, len);
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len <<= 2;
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DataInt32 (dpy, (_Xconst int *) traps, (long) len);
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ntrap -= n;
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traps += n;
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}
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UnlockDisplay(dpy);
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SyncHandle();
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}
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