IABSD.fr/xenocara/xserver/render/mitri.c

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  Commit

• Author : matthieu
  Date : 2011-11-05 13:32:40
  Hash : 61a7d542
  Message : Update to xserver 1.11.2

• xserver/render/mitri.c

• /*
   *
   * Copyright © 2002 Keith Packard, member of The XFree86 Project, 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 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_DIX_CONFIG_H
  #include <dix-config.h>
  #endif
  
  #include "scrnintstr.h"
  #include "gcstruct.h"
  #include "pixmapstr.h"
  #include "windowstr.h"
  #include "mi.h"
  #include "picturestr.h"
  #include "mipict.h"
  
  void
  miPointFixedBounds (int npoint, xPointFixed *points, BoxPtr bounds)
  {
      bounds->x1 = xFixedToInt (points->x);
      bounds->x2 = xFixedToInt (xFixedCeil (points->x));
      bounds->y1 = xFixedToInt (points->y);
      bounds->y2 = xFixedToInt (xFixedCeil (points->y));
      points++;
      npoint--;
      while (npoint-- > 0)
      {
  	INT16	x1 = xFixedToInt (points->x);
  	INT16	x2 = xFixedToInt (xFixedCeil (points->x));
  	INT16	y1 = xFixedToInt (points->y);
  	INT16	y2 = xFixedToInt (xFixedCeil (points->y));
  
  	if (x1 < bounds->x1)
  	    bounds->x1 = x1;
  	else if (x2 > bounds->x2)
  	    bounds->x2 = x2;
  	if (y1 < bounds->y1)
  	    bounds->y1 = y1;
  	else if (y2 > bounds->y2)
  	    bounds->y2 = y2;
  	points++;
      }
  }
  
  void
  miTriangleBounds (int ntri, xTriangle *tris, BoxPtr bounds)
  {
      miPointFixedBounds (ntri * 3, (xPointFixed *) tris, bounds);
  }