xorg-server-1.4/miext/rootless/accel/rlCopy.c

   1 /*
   2  * This code is largely copied from fbcopy.c.
   3  *
   4  * Copyright © 1998 Keith Packard
   5  * Copyright (c) 2003 Torrey T. Lyons. All Rights Reserved.
   6  *
   7  * Permission to use, copy, modify, distribute, and sell this software and its
   8  * documentation for any purpose is hereby granted without fee, provided that
   9  * the above copyright notice appear in all copies and that both that
  10  * copyright notice and this permission notice appear in supporting
  11  * documentation, and that the name of Keith Packard not be used in
  12  * advertising or publicity pertaining to distribution of the software without
  13  * specific, written prior permission.  Keith Packard makes no
  14  * representations about the suitability of this software for any purpose.  It
  15  * is provided "as is" without express or implied warranty.
  16  *
  17  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  18  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  19  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  20  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  21  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  22  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  23  * PERFORMANCE OF THIS SOFTWARE.
  24  */
  25
  26 #ifdef HAVE_DIX_CONFIG_H
  27 #include <dix-config.h>
  28 #endif
  29
  30 #include "fb.h"
  31 #include "rlAccel.h"
  32
  33
  34 void
  35 rlCopyNtoN (DrawablePtr pSrcDrawable,
  36             DrawablePtr pDstDrawable,
  37             GCPtr       pGC,
  38             BoxPtr      pbox,
  39             int         nbox,
  40             int         dx,
  41             int         dy,
  42             Bool        reverse,
  43             Bool        upsidedown,
  44             Pixel       bitplane,
  45             void        *closure)
  46 {
  47     CARD8       alu = pGC ? pGC->alu : GXcopy;
  48     FbBits      pm = pGC ? fbGetGCPrivate(pGC)->pm : FB_ALLONES;
  49     FbBits      *src;
  50     FbStride    srcStride;
  51     int         srcBpp;
  52     int         srcXoff, srcYoff;
  53     FbBits      *dst;
  54     FbStride    dstStride;
  55     int         dstBpp;
  56     int         dstXoff, dstYoff;
  57
  58     fbGetDrawable (pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
  59     fbGetDrawable (pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
  60
  61     while (nbox--)
  62     {
  63         rlBlt (src + (pbox->y1 + dy + srcYoff) * srcStride,
  64                srcStride,
  65                (pbox->x1 + dx + srcXoff) * srcBpp,
  66
  67                pDstDrawable->pScreen,
  68                dst + (pbox->y1 + dstYoff) * dstStride,
  69                dstStride,
  70                (pbox->x1 + dstXoff) * dstBpp,
  71
  72                (pbox->x2 - pbox->x1) * dstBpp,
  73                (pbox->y2 - pbox->y1),
  74
  75                alu,
  76                pm,
  77                dstBpp,
  78
  79                reverse,
  80                upsidedown);
  81         pbox++;
  82     }
  83 }
  84
  85 RegionPtr
  86 rlCopyArea (DrawablePtr pSrcDrawable,
  87             DrawablePtr pDstDrawable,
  88             GCPtr       pGC,
  89             int         xIn,
  90             int         yIn,
  91             int         widthSrc,
  92             int         heightSrc,
  93             int         xOut,
  94             int         yOut)
  95 {
  96     fbCopyProc  copy;
  97
  98 #ifdef FB_24_32BIT
  99     if (pSrcDrawable->bitsPerPixel != pDstDrawable->bitsPerPixel)
 100         copy = fb24_32CopyMtoN;
 101     else
 102 #endif
 103         copy = rlCopyNtoN;
 104     return fbDoCopy (pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
 105                      widthSrc, heightSrc, xOut, yOut, copy, 0, 0);
 106 }