IABSD.fr/xenocara/lib/libXrender/src/AddTrap.c

Branch : - branch - master - tag -

• Show log

  Commit

• Author : matthieu
  Date : 2009-10-31 18:41:19
  Hash : e03850b0
  Message : update to libXrender 0.9.5

• lib/libXrender/src/AddTrap.c

• /*
   * Copyright © 2004 Keith Packard
   *
   * 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 Keith Packard not be used in
   * advertising or publicity pertaining to distribution of the software without
   * specific, written prior permission.  Keith Packard makes no
   * representations about the suitability of this software for any purpose.  It
   * is provided "as is" without express or implied warranty.
   *
   * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   * EVENT SHALL KEITH PACKARD 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.
   */
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include "Xrenderint.h"
  
  #define NLOCAL	256
  
  void
  XRenderAddTraps (Display	    *dpy,
  		 Picture	    picture,
  		 int		    xOff,
  		 int		    yOff,
  		 _Xconst XTrap	    *traps,
  		 int		    ntrap)
  {
      XRenderExtDisplayInfo   *info = XRenderFindDisplay (dpy);
      xRenderAddTrapsReq	    *req;
      int			    n;
      long    		    len;
      unsigned long	    max_req = dpy->bigreq_size ? dpy->bigreq_size : dpy->max_request_size;
  
      RenderSimpleCheckExtension (dpy, info);
      LockDisplay(dpy);
      while (ntrap)
      {
  	GetReq(RenderAddTraps, req);
  	req->reqType = info->codes->major_opcode;
  	req->renderReqType = X_RenderAddTraps;
  	req->picture = picture;
  	req->xOff = xOff;
  	req->yOff = yOff;
  	n = ntrap;
  	len = ((long) n) * (SIZEOF (xTrap) >> 2);
  	if (len > (max_req - req->length)) {
  	    n = (max_req - req->length) / (SIZEOF (xTrap) >> 2);
  	    len = ((long)n) * (SIZEOF (xTrap) >> 2);
  	}
  	SetReqLen (req, len, len);
  	len <<= 2;
  	DataInt32 (dpy, (int *) traps, len);
  	ntrap -= n;
  	traps += n;
      }
      UnlockDisplay(dpy);
      SyncHandle();
  }