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

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• Author : matthieu
  Date : 2022-11-06 17:49:17
  Hash : 3b0b5ae7
  Message : Update libXrender to version 0.9.11

• lib/libXrender/src/FillRects.c

• /*
   *
   * Copyright © 2000 SuSE, 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 SuSE not be used in advertising or
   * publicity pertaining to distribution of the software without specific,
   * written prior permission.  SuSE makes no representations about the
   * suitability of this software for any purpose.  It is provided "as is"
   * without express or implied warranty.
   *
   * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
   * 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.
   *
   * Author:  Keith Packard, SuSE, Inc.
   */
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include "Xrenderint.h"
  
  /* precompute the maximum size of batching request allowed */
  
  #define size (SIZEOF(xRenderFillRectanglesReq) + FRCTSPERBATCH * SIZEOF(xRectangle))
  
  void
  XRenderFillRectangles (Display		    *dpy,
  		       int		    op,
  		       Picture		    dst,
  		       _Xconst XRenderColor *color,
  		       _Xconst XRectangle   *rectangles,
  		       int		    n_rects)
  {
      XRenderExtDisplayInfo	*info = XRenderFindDisplay (dpy);
      xRenderFillRectanglesReq	*req;
  
      RenderSimpleCheckExtension (dpy, info);
      LockDisplay(dpy);
  
      while (n_rects)
      {
  	long	len;
  	int	n;
  
  	GetReq(RenderFillRectangles, req);
  
  	req->reqType = (CARD8) info->codes->major_opcode;
  	req->renderReqType = X_RenderFillRectangles;
  	req->op = (CARD8) op;
  	req->dst = (CARD32) dst;
  	req->color.red = color->red;
  	req->color.green = color->green;
  	req->color.blue = color->blue;
  	req->color.alpha = color->alpha;
  
  	n = n_rects;
  	len = ((long)n) << 1;
  	if (!dpy->bigreq_size && len > (dpy->max_request_size - req->length))
  	{
  	    n = (int) ((dpy->max_request_size - req->length) >> 1);
  	    len = ((long)n) << 1;
  	}
  	SetReqLen(req, len, len);
  	len <<= 2; /* watch out for macros... */
  	Data16 (dpy, (_Xconst short *) rectangles, len);
  	n_rects -= n;
  	rectangles += n;
      }
      UnlockDisplay(dpy);
      SyncHandle();
  }