Return to fbwindow.c CVS log

Up to [XFree86 CVS] / xc / programs / Xserver / fb

 217. A rework of the way extension support is built into servers to allow for
      servers with different sets of extensions in the same build.  This starts
      with an idea introduced in David Dawes's TinyX work, and extends it to
      also apply to the Xprt, Xnest, Xvfb, Xdmx and Xsun* servers.  The changes
      include:
      - Add, as a comment, a definition for what makes an extension pervasive.
      - TOGCUP is not a pervasive extension, but XSYNC, BIGREQS and XRES are.
      - Consolidate #define's for the Xv, XvMC and XRES extensions.
      - Flip, in favour of the majority case, MITSHM's default decision WRT
        whether or not a framebuffer stores pixmap data in the server's virtual
        address space.  MI is now independent of MITSHM and MITSHM is no longer
        a pervasive extension.
      - Add a DIX helper to determine whether Xinerama is active and use it
        instead of #ifdef'ed code in all loadable modules.  Re-implement, as
        a screen wrapper, Xinerama's PaintWindow*() hacks.  Move down to DIX
        Xinerama's only MI hook.  Both MI and loadable module objects are now
        independent of Xinerama.
      - Add more XCSECURITY-related DIX helpers.  Loadable module objects that
        provide their own extensions (e.g. apm) are now independent of the core
        binary's support for XCSECURITY.
      - Extend DBE to allow for front and back buffer revalidations (to be used
        in future changes to restore the only existing example of DBE hardware
        acceleration after converting the sunffb driver to fb, XAA & Render).
        This is the change that chronologically started all this.
      - Separate Xv and XvMC extensions more cleanly.
      - Move Xserver/*/tiny directories under Xserver/hw/tinyx.
      - Fix !PrintOnlyServer builds.
      - Clean up Xserver/Imakefile.
      - Remove remaining traces of Xdec* servers.
      - Fix parallel make bug in Xserver/Imakefile caused by unintentional
        symbol re-use.
      - Accomodate XWin more cleanly by not "skipping" over Xserver/hw.
      - Remove all extension stub code (no longer needed).
      `make World` is required to correctly build these changes.  In fact, I
      recommend staring from a fresh checkout.  These changes are bundled as
      one commit due to module versioning considerations.  (Marc La France)

/*
 * $XFree86: xc/programs/Xserver/fb/fbwindow.c,v 1.12tsi Exp $
 *
 * 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.
 */

#include "fb.h"
#ifdef IN_MODULE
#include "xf86_ansic.h"
#endif

Bool
fbCreateWindow(WindowPtr pWin)
{
#ifndef FB_NO_WINDOW_PIXMAPS
    pWin->devPrivates[fbWinPrivateIndex].ptr = 
	(pointer) fbGetScreenPixmap(pWin->drawable.pScreen);
#endif
#ifdef FB_SCREEN_PRIVATE
    if (pWin->drawable.bitsPerPixel == 32)
	pWin->drawable.bitsPerPixel = fbGetScreenPrivate(pWin->drawable.pScreen)->win32bpp;
#endif
    return TRUE;
}

Bool
fbDestroyWindow(WindowPtr pWin)
{
    return TRUE;
}

Bool
fbMapWindow(WindowPtr pWindow)
{
    return TRUE;
}

Bool
fbPositionWindow(WindowPtr pWin, int x, int y)
{
    return TRUE;
}

Bool
fbUnmapWindow(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++;
    }
}

void 
fbCopyWindow(WindowPtr	    pWin, 
	     DDXPointRec    ptOldOrg, 
	     RegionPtr	    prgnSrc)
{
    RegionRec	rgnDst;
    int		dx, dy;
    WindowPtr	pwinRoot;

    pwinRoot = WindowTable[pWin->drawable.pScreen->myNum];

    dx = ptOldOrg.x - pWin->drawable.x;
    dy = ptOldOrg.y - pWin->drawable.y;
    REGION_TRANSLATE(pWin->drawable.pScreen, prgnSrc, -dx, -dy);

    REGION_NULL (pWin->drawable.pScreen, &rgnDst);
    
    REGION_INTERSECT(pWin->drawable.pScreen, &rgnDst, &pWin->borderClip, prgnSrc);

    fbCopyRegion ((DrawablePtr)pwinRoot, (DrawablePtr)pwinRoot,
		  0,
		  &rgnDst, dx, dy, fbCopyWindowProc, 0, 0);
    
    REGION_UNINIT(pWin->drawable.pScreen, &rgnDst);
    fbValidateDrawable (&pWin->drawable);
}

Bool
fbChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
{
    PixmapPtr	pPixmap;
    
    if (mask & CWBackPixmap)
    {
	if (pWin->backgroundState == BackgroundPixmap)
	{
	    pPixmap = pWin->background.pixmap;
#ifdef FB_24_32BIT
	    if (pPixmap->drawable.bitsPerPixel != pWin->drawable.bitsPerPixel)
	    {
		pPixmap = fb24_32ReformatTile (pPixmap,
					       pWin->drawable.bitsPerPixel);
		if (pPixmap)
		{
		    (*pWin->drawable.pScreen->DestroyPixmap) (pWin->background.pixmap);
		    pWin->background.pixmap = pPixmap;
		}
	    }
#endif
	    if (FbEvenTile (pPixmap->drawable.width *
			    pPixmap->drawable.bitsPerPixel))
		fbPadPixmap (pPixmap);
	}
    }
    if (mask & CWBorderPixmap)
    {
	if (pWin->borderIsPixel == FALSE)
	{
	    pPixmap = pWin->border.pixmap;
#ifdef FB_24_32BIT
	    if (pPixmap->drawable.bitsPerPixel !=
		pWin->drawable.bitsPerPixel)
	    {
		pPixmap = fb24_32ReformatTile (pPixmap,
					       pWin->drawable.bitsPerPixel);
		if (pPixmap)
		{
		    (*pWin->drawable.pScreen->DestroyPixmap) (pWin->border.pixmap);
		    pWin->border.pixmap = pPixmap;
		}
	    }
#endif
	    if (FbEvenTile (pPixmap->drawable.width *
			    pPixmap->drawable.bitsPerPixel))
		fbPadPixmap (pPixmap);
	}
    }
    return TRUE;
}

void
fbFillRegionSolid (DrawablePtr	pDrawable,
		   RegionPtr	pRegion,
		   FbBits	and,
		   FbBits	xor)
{
    FbBits	*dst;
    FbStride	dstStride;
    int		dstBpp;
    int		dstXoff, dstYoff;
    int		n = REGION_NUM_RECTS(pRegion);
    BoxPtr	pbox = REGION_RECTS(pRegion);

    fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
    
    while (n--)
    {
	fbSolid (dst + (pbox->y1 + dstYoff) * dstStride,
		 dstStride,
		 (pbox->x1 + dstXoff) * dstBpp,
		 dstBpp,
		 (pbox->x2 - pbox->x1) * dstBpp,
		 pbox->y2 - pbox->y1,
		 and, xor);
	fbValidateDrawable (pDrawable);
	pbox++;
    }
}

void
fbFillRegionTiled (DrawablePtr	pDrawable,
		   RegionPtr	pRegion,
		   PixmapPtr	pTile)
{
    FbBits	*dst;
    FbStride	dstStride;
    int		dstBpp;
    int		dstXoff, dstYoff;
    FbBits	*tile;
    FbStride	tileStride;
    int		tileBpp;
    int		tileXoff, tileYoff; /* XXX assumed to be zero */
    int		tileWidth, tileHeight;
    int		n = REGION_NUM_RECTS(pRegion);
    BoxPtr	pbox = REGION_RECTS(pRegion);
    int		xRot = pDrawable->x;
    int		yRot = pDrawable->y;
    
    fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
    fbGetDrawable (&pTile->drawable, tile, tileStride, tileBpp, tileXoff, tileYoff);
    tileWidth = pTile->drawable.width;
    tileHeight = pTile->drawable.height;
    xRot += dstXoff;
    yRot += dstYoff;
    
    while (n--)
    {
	fbTile (dst + (pbox->y1 + dstYoff) * dstStride,
		dstStride,
		(pbox->x1 + dstXoff) * dstBpp,
		(pbox->x2 - pbox->x1) * dstBpp,
		pbox->y2 - pbox->y1,
		tile,
		tileStride,
		tileWidth * dstBpp,
		tileHeight,
		GXcopy,
		FB_ALLONES,
		dstBpp,
		xRot * dstBpp,
		yRot - pbox->y1);
	pbox++;
    }
}

void
fbPaintWindow(WindowPtr pWin, RegionPtr pRegion, int what)
{
    WindowPtr	pBgWin;
    
    switch (what) {
    case PW_BACKGROUND:
	switch (pWin->backgroundState) {
	case None:
	    break;
	case ParentRelative:
	    do {
		pWin = pWin->parent;
	    } while (pWin->backgroundState == ParentRelative);
	    (*pWin->drawable.pScreen->PaintWindowBackground)(pWin, pRegion,
							     what);
	    break;
	case BackgroundPixmap:
	    fbFillRegionTiled (&pWin->drawable,
			       pRegion,
			       pWin->background.pixmap);
	    break;
	case BackgroundPixel:
	    fbFillRegionSolid (&pWin->drawable,
			       pRegion,
			       0,
			       fbReplicatePixel (pWin->background.pixel,
						 pWin->drawable.bitsPerPixel));
	    break;
    	}
    	break;
    case PW_BORDER:
	if (pWin->borderIsPixel)
	{
	    fbFillRegionSolid (&pWin->drawable,
			       pRegion,
			       0,
			       fbReplicatePixel (pWin->border.pixel,
						 pWin->drawable.bitsPerPixel));
	}
	else
	{
	    for (pBgWin = pWin;
		 pBgWin->backgroundState == ParentRelative;
		 pBgWin = pBgWin->parent);

	    fbFillRegionTiled (&pBgWin->drawable,
			       pRegion,
			       pWin->border.pixmap);
	}
	break;
    }
    fbValidateDrawable (&pWin->drawable);
}