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

Branch : - branch - master - tag -

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  Commit

• Author : matthieu
  Date : 2012-06-10 13:21:05
  Hash : e60da745
  Message : Update to xserver 1.12.2. tested by naddy@, krw@, mpi@.

• 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);
  }