IABSD.fr/xenocara/xserver/fb/fbgetsp.c

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  Commit

• Author : matthieu
  Date : 2019-07-27 07:57:06
  Hash : a77e9959
  Message : Update to xserver 1.20.5. Tested by jsg@

• xserver/fb/fbgetsp.c

• /*
   * Copyright © 1998 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_DIX_CONFIG_H
  #include <dix-config.h>
  #endif
  
  #include "fb.h"
  
  void
  fbGetSpans(DrawablePtr pDrawable,
             int wMax,
             DDXPointPtr ppt, int *pwidth, int nspans, char *pchardstStart)
  {
      FbBits *src, *dst;
      FbStride srcStride;
      int srcBpp;
      int srcXoff, srcYoff;
      int xoff;
  
      /*
       * XFree86 DDX empties the root borderClip when the VT is
       * switched away; this checks for that case
       */
      if (!fbDrawableEnabled(pDrawable))
          return;
  
      fbGetDrawable(pDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
  
      while (nspans--) {
          xoff = (int) (((long) pchardstStart) & (FB_MASK >> 3));
          dst = (FbBits *) (pchardstStart - xoff);
          xoff <<= 3;
          fbBlt(src + (ppt->y + srcYoff) * srcStride, srcStride,
                (ppt->x + srcXoff) * srcBpp,
                dst,
                1,
                xoff,
                *pwidth * srcBpp, 1, GXcopy, FB_ALLONES, srcBpp, FALSE, FALSE);
          pchardstStart += PixmapBytePad(*pwidth, pDrawable->depth);
          ppt++;
          pwidth++;
      }
  
      fbFinishAccess(pDrawable);
  }