IABSD.fr/xenocara/xserver/fb/fbwindow.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/fbwindow.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 <stdlib.h>
  
  #include "fb.h"
  
  Bool
  fbCreateWindow(WindowPtr pWin)
  {
      dixSetPrivate(&pWin->devPrivates, fbGetWinPrivateKey(pWin),
                    fbGetScreenPixmap(pWin->drawable.pScreen));
      return TRUE;
  }
  
  Bool
  fbDestroyWindow(WindowPtr pWin)
  {
      return TRUE;
  }
  
  Bool
  fbRealizeWindow(WindowPtr pWindow)
  {
      return TRUE;
  }
  
  Bool
  fbPositionWindow(WindowPtr pWin, int x, int y)
  {
      return TRUE;
  }
  
  Bool
  fbUnrealizeWindow(WindowPtr pWindow)
  {
      return TRUE;
  }
  
  void
  fbCopyWindowProc(DrawablePtr pSrcDrawable,
                   DrawablePtr pDstDrawable,
                   GCPtr pGC,
                   BoxPtr pbox,
                   int nbox,
                   int dx,
                   int dy,
                   Bool reverse, Bool upsidedown, Pixel bitplane, void *closure)
  {
      FbBits *src;
      FbStride srcStride;
      int srcBpp;
      int srcXoff, srcYoff;
      FbBits *dst;
      FbStride dstStride;
      int dstBpp;
      int dstXoff, dstYoff;
  
      fbGetDrawable(pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
      fbGetDrawable(pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
  
      while (nbox--) {
          fbBlt(src + (pbox->y1 + dy + srcYoff) * srcStride,
                srcStride,
                (pbox->x1 + dx + srcXoff) * srcBpp,
                dst + (pbox->y1 + dstYoff) * dstStride,
                dstStride,
                (pbox->x1 + dstXoff) * dstBpp,
                (pbox->x2 - pbox->x1) * dstBpp,
                (pbox->y2 - pbox->y1),
                GXcopy, FB_ALLONES, dstBpp, reverse, upsidedown);
          pbox++;
      }
  
      fbFinishAccess(pDstDrawable);
      fbFinishAccess(pSrcDrawable);
  }
  
  void
  fbCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
  {
      RegionRec rgnDst;
      int dx, dy;
  
      PixmapPtr pPixmap = fbGetWindowPixmap(pWin);
      DrawablePtr pDrawable = &pPixmap->drawable;
  
      dx = ptOldOrg.x - pWin->drawable.x;
      dy = ptOldOrg.y - pWin->drawable.y;
      RegionTranslate(prgnSrc, -dx, -dy);
  
      RegionNull(&rgnDst);
  
      RegionIntersect(&rgnDst, &pWin->borderClip, prgnSrc);
  
  #ifdef COMPOSITE
      if (pPixmap->screen_x || pPixmap->screen_y)
          RegionTranslate(&rgnDst, -pPixmap->screen_x, -pPixmap->screen_y);
  #endif
  
      miCopyRegion(pDrawable, pDrawable,
                   0, &rgnDst, dx, dy, fbCopyWindowProc, 0, 0);
  
      RegionUninit(&rgnDst);
      fbValidateDrawable(&pWin->drawable);
  }
  
  static void
  fbFixupWindowPixmap(DrawablePtr pDrawable, PixmapPtr *ppPixmap)
  {
      PixmapPtr pPixmap = *ppPixmap;
  
      if (FbEvenTile(pPixmap->drawable.width * pPixmap->drawable.bitsPerPixel))
          fbPadPixmap(pPixmap);
  }
  
  Bool
  fbChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
  {
      if (mask & CWBackPixmap) {
          if (pWin->backgroundState == BackgroundPixmap)
              fbFixupWindowPixmap(&pWin->drawable, &pWin->background.pixmap);
      }
      if (mask & CWBorderPixmap) {
          if (pWin->borderIsPixel == FALSE)
              fbFixupWindowPixmap(&pWin->drawable, &pWin->border.pixmap);
      }
      return TRUE;
  }
  
  void
  fbFillRegionSolid(DrawablePtr pDrawable,
                    RegionPtr pRegion, FbBits and, FbBits xor)
  {
      FbBits *dst;
      FbStride dstStride;
      int dstBpp;
      int dstXoff, dstYoff;
      int n = RegionNumRects(pRegion);
      BoxPtr pbox = RegionRects(pRegion);
  
  #ifndef FB_ACCESS_WRAPPER
      int try_mmx = 0;
  
      if (!and)
          try_mmx = 1;
  #endif
  
      fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
  
      while (n--) {
  #ifndef FB_ACCESS_WRAPPER
          if (!try_mmx || !pixman_fill((uint32_t *) dst, dstStride, dstBpp,
                                       pbox->x1 + dstXoff, pbox->y1 + dstYoff,
                                       (pbox->x2 - pbox->x1),
                                       (pbox->y2 - pbox->y1), xor)) {
  #endif
              fbSolid(dst + (pbox->y1 + dstYoff) * dstStride,
                      dstStride,
                      (pbox->x1 + dstXoff) * dstBpp,
                      dstBpp,
                      (pbox->x2 - pbox->x1) * dstBpp,
                      pbox->y2 - pbox->y1, and, xor);
  #ifndef FB_ACCESS_WRAPPER
          }
  #endif
          fbValidateDrawable(pDrawable);
          pbox++;
      }
  
      fbFinishAccess(pDrawable);
  }