Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 376 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/cfb/cfbpixmap.c b/nx-X11/programs/Xserver/cfb/cfbpixmap.c
new file mode 100644
index 000000000..704ab4eda
--- /dev/null
+++ b/nx-X11/programs/Xserver/cfb/cfbpixmap.c
@@ -0,0 +1,376 @@
+/* $Xorg: cfbpixmap.c,v 1.4 2001/02/09 02:04:38 xorgcvs Exp $ */
+/***********************************************************
+
+Copyright 1987, 1998  The Open Group
+
+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.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+                        All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its 
+documentation for any purpose and without fee is hereby granted, 
+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 Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.  
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+******************************************************************/
+/* $XFree86: xc/programs/Xserver/cfb/cfbpixmap.c,v 1.4 2001/01/17 22:36:36 dawes Exp $ */
+/* pixmap management
+   written by drewry, september 1986
+
+   on a monchrome device, a pixmap is a bitmap.
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/Xmd.h>
+#include "servermd.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "mi.h"
+#include "cfb.h"
+#include "cfbmskbits.h"
+
+PixmapPtr
+cfbCreatePixmap (pScreen, width, height, depth)
+    ScreenPtr	pScreen;
+    int		width;
+    int		height;
+    int		depth;
+{
+    PixmapPtr pPixmap;
+    size_t datasize;
+    size_t paddedWidth;
+
+    paddedWidth = PixmapBytePad(width, depth);
+
+    if (paddedWidth / 4 > 32767 || height > 32767)
+	return NullPixmap;
+    datasize = height * paddedWidth;
+    pPixmap = AllocatePixmap(pScreen, datasize);
+    if (!pPixmap)
+	return NullPixmap;
+    pPixmap->drawable.type = DRAWABLE_PIXMAP;
+    pPixmap->drawable.class = 0;
+    pPixmap->drawable.pScreen = pScreen;
+    pPixmap->drawable.depth = depth;
+    pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);
+    pPixmap->drawable.id = 0;
+    pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+    pPixmap->drawable.x = 0;
+    pPixmap->drawable.y = 0;
+    pPixmap->drawable.width = width;
+    pPixmap->drawable.height = height;
+    pPixmap->devKind = paddedWidth;
+    pPixmap->refcnt = 1;
+#ifdef PIXPRIV
+    pPixmap->devPrivate.ptr = datasize ?
+		(pointer)((char *)pPixmap + pScreen->totalPixmapSize) : NULL;
+#else
+    pPixmap->devPrivate.ptr = (pointer)(pPixmap + 1);
+#endif
+    return pPixmap;
+}
+
+Bool
+cfbDestroyPixmap(pPixmap)
+    PixmapPtr pPixmap;
+{
+    if(--pPixmap->refcnt)
+	return TRUE;
+    xfree(pPixmap);
+    return TRUE;
+}
+
+PixmapPtr
+cfbCopyPixmap(pSrc)
+    register PixmapPtr	pSrc;
+{
+    register PixmapPtr	pDst;
+    int		size;
+    ScreenPtr pScreen;
+
+    size = pSrc->drawable.height * pSrc->devKind;
+    pScreen = pSrc->drawable.pScreen;
+    pDst = (*pScreen->CreatePixmap) (pScreen, pSrc->drawable.width, 
+				pSrc->drawable.height, pSrc->drawable.depth);
+    if (!pDst)
+	return NullPixmap;
+    memmove((char *)pDst->devPrivate.ptr, (char *)pSrc->devPrivate.ptr, size);
+    return pDst;
+}
+
+
+/* replicates a pattern to be a full 32 bits wide.
+   relies on the fact that each scnaline is longword padded.
+   doesn't do anything if pixmap is not a factor of 32 wide.
+   changes width field of pixmap if successful, so that the fast
+	cfbXRotatePixmap code gets used if we rotate the pixmap later.
+	cfbYRotatePixmap code gets used if we rotate the pixmap later.
+
+   calculate number of times to repeat
+   for each scanline of pattern
+      zero out area to be filled with replicate
+      left shift and or in original as many times as needed
+*/
+void
+cfbPadPixmap(pPixmap)
+    PixmapPtr pPixmap;
+{
+    register int width = (pPixmap->drawable.width) * (pPixmap->drawable.bitsPerPixel);
+    register int h;
+    register CfbBits mask;
+    register CfbBits *p;
+    register CfbBits bits; /* real pattern bits */
+    register int i;
+    int rep;                    /* repeat count for pattern */
+ 
+    if (width >= PGSZ)
+        return;
+
+    rep = PGSZ/width;
+    if (rep*width != PGSZ)
+        return;
+ 
+    mask = mfbGetendtab(width);
+ 
+    p = (CfbBits *)(pPixmap->devPrivate.ptr);
+    for (h=0; h < pPixmap->drawable.height; h++)
+    {
+        *p &= mask;
+        bits = *p;
+        for(i=1; i<rep; i++)
+        {
+#if (BITMAP_BIT_ORDER == MSBFirst) 
+            bits >>= width;
+#else
+	    bits <<= width;
+#endif
+            *p |= bits;
+        }
+        p++;
+    }    
+    pPixmap->drawable.width = PGSZ/(pPixmap->drawable.bitsPerPixel);
+}
+
+
+#ifdef notdef
+/*
+ * cfb debugging routine -- assumes pixmap is 1 byte deep 
+ */
+static cfbdumppixmap(pPix)
+    PixmapPtr	pPix;
+{
+    unsigned int *pw;
+    char *psrc, *pdst;
+    int	i, j;
+    char	line[66];
+
+    ErrorF(  "pPixmap: 0x%x\n", pPix);
+    ErrorF(  "%d wide %d high\n", pPix->drawable.width, pPix->drawable.height);
+    if (pPix->drawable.width > 64)
+    {
+	ErrorF(  "too wide to see\n");
+	return;
+    }
+
+    pw = (unsigned int *) pPix->devPrivate.ptr;
+    psrc = (char *) pw;
+
+/*
+    for ( i=0; i<pPix->drawable.height; ++i )
+	ErrorF( "0x%x\n", pw[i] );
+*/
+
+    for ( i = 0; i < pPix->drawable.height; ++i ) {
+	pdst = line;
+	for(j = 0; j < pPix->drawable.width; j++) {
+	    *pdst++ = *psrc++ ? 'X' : ' ' ;
+	}
+	*pdst++ = '\n';
+	*pdst++ = '\0';
+	ErrorF( "%s", line);
+    }
+}
+#endif /* notdef */
+
+/* Rotates pixmap pPix by w pixels to the right on the screen. Assumes that
+ * words are PGSZ bits wide, and that the least significant bit appears on the
+ * left.
+ */
+void
+cfbXRotatePixmap(pPix, rw)
+    PixmapPtr	pPix;
+    register int rw;
+{
+    register CfbBits	*pw, *pwFinal;
+    register CfbBits	t;
+    int				rot;
+
+    if (pPix == NullPixmap)
+        return;
+
+    switch (((DrawablePtr) pPix)->bitsPerPixel) {
+	case PSZ:
+	    break;
+	case 1:
+	    mfbXRotatePixmap(pPix, rw);
+	    return;
+	default:
+	    ErrorF("cfbXRotatePixmap: unsupported bitsPerPixel %d\n", ((DrawablePtr) pPix)->bitsPerPixel);
+	    return;
+    }
+    pw = (CfbBits *)pPix->devPrivate.ptr;
+    modulus (rw, (int) pPix->drawable.width, rot);
+    if(pPix->drawable.width == PPW)
+    {
+        pwFinal = pw + pPix->drawable.height;
+	while(pw < pwFinal)
+	{
+	    t = *pw;
+	    *pw++ = SCRRIGHT(t, rot) |
+		    (SCRLEFT(t, (PPW-rot)) & cfbendtab[rot]);
+	}
+    }
+    else
+    {
+        ErrorF("cfb internal error: trying to rotate odd-sized pixmap.\n");
+#ifdef notdef
+	register CfbBits *pwTmp;
+	int size, tsize;
+
+	tsize = PixmapBytePad(pPix->drawable.width - rot, pPix->drawable.depth);
+	pwTmp = (CfbBits *) ALLOCATE_LOCAL(pPix->drawable.height * tsize);
+	if (!pwTmp)
+	    return;
+	/* divide pw (the pixmap) in two vertically at (w - rot) and swap */
+	tsize >>= 2;
+	size = pPix->devKind >> SIZE0F(PixelGroup);
+	cfbQuickBlt((CfbBits *)pw, (CfbBits *)pwTmp,
+		    0, 0, 0, 0,
+		    (int)pPix->drawable.width - rot, (int)pPix->drawable.height,
+		    size, tsize);
+	cfbQuickBlt((CfbBits *)pw, (CfbBits *)pw,
+		    (int)pPix->drawable.width - rot, 0, 0, 0,
+		    rot, (int)pPix->drawable.height,
+		    size, size);
+	cfbQuickBlt((CfbBits *)pwTmp, (CfbBits *)pw,
+		    0, 0, rot, 0,
+		    (int)pPix->drawable.width - rot, (int)pPix->drawable.height,
+		    tsize, size);
+	DEALLOCATE_LOCAL(pwTmp);
+#endif
+    }
+}
+
+/* Rotates pixmap pPix by h lines.  Assumes that h is always less than
+   pPix->drawable.height
+   works on any width.
+ */
+void
+cfbYRotatePixmap(pPix, rh)
+    register PixmapPtr	pPix;
+    int	rh;
+{
+    int nbyDown;	/* bytes to move down to row 0; also offset of
+			   row rh */
+    int nbyUp;		/* bytes to move up to line rh; also
+			   offset of first line moved down to 0 */
+    char *pbase;
+    char *ptmp;
+    int	rot;
+
+    if (pPix == NullPixmap)
+	return;
+    switch (((DrawablePtr) pPix)->bitsPerPixel) {
+	case PSZ:
+	    break;
+	case 1:
+	    mfbYRotatePixmap(pPix, rh);
+	    return;
+	default:
+	    ErrorF("cfbYRotatePixmap: unsupported bitsPerPixel %d\n", ((DrawablePtr) pPix)->bitsPerPixel);
+	    return;
+    }
+
+    modulus (rh, (int) pPix->drawable.height, rot);
+    pbase = (char *)pPix->devPrivate.ptr;
+
+    nbyDown = rot * pPix->devKind;
+    nbyUp = (pPix->devKind * pPix->drawable.height) - nbyDown;
+    if(!(ptmp = (char *)ALLOCATE_LOCAL(nbyUp)))
+	return;
+
+    memmove(ptmp, pbase, nbyUp);		/* save the low rows */
+    memmove(pbase, pbase+nbyUp, nbyDown);	/* slide the top rows down */
+    memmove(pbase+nbyDown, ptmp, nbyUp);	/* move lower rows up to row rot */
+    DEALLOCATE_LOCAL(ptmp);
+}
+
+void
+cfbCopyRotatePixmap(psrcPix, ppdstPix, xrot, yrot)
+    register PixmapPtr psrcPix, *ppdstPix;
+    int	xrot, yrot;
+{
+    register PixmapPtr pdstPix;
+
+    if ((pdstPix = *ppdstPix) &&
+	(pdstPix->devKind == psrcPix->devKind) &&
+	(pdstPix->drawable.height == psrcPix->drawable.height))
+    {
+	memmove((char *)pdstPix->devPrivate.ptr,
+		(char *)psrcPix->devPrivate.ptr,
+	      psrcPix->drawable.height * psrcPix->devKind);
+	pdstPix->drawable.width = psrcPix->drawable.width;
+	pdstPix->drawable.depth = psrcPix->drawable.depth;
+	pdstPix->drawable.bitsPerPixel = psrcPix->drawable.bitsPerPixel;
+	pdstPix->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+    }
+    else
+    {
+	if (pdstPix)
+	    /* FIX XBUG 6168 */
+	    (*pdstPix->drawable.pScreen->DestroyPixmap)(pdstPix);
+	*ppdstPix = pdstPix = cfbCopyPixmap(psrcPix);
+	if (!pdstPix)
+	    return;
+    }
+    cfbPadPixmap(pdstPix);
+    if (xrot)
+	cfbXRotatePixmap(pdstPix, xrot);
+    if (yrot)
+	cfbYRotatePixmap(pdstPix, yrot);
+}