--- /dev/null
+/* $XConsortium: cfbpixmap.c,v 5.14 94/04/17 20:28:56 dpw Exp $ */
+/***********************************************************
+
+Copyright (c) 1987 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+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
+X CONSORTIUM 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 X Consortium 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 X Consortium.
+
+
+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.
+
+******************************************************************/
+/* pixmap management
+ written by drewry, september 1986
+
+ on a monchrome device, a pixmap is a bitmap.
+*/
+
+#include "Xmd.h"
+#include "servermd.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "mi.h"
+#include "cfb.h"
+#include "cfbmskbits.h"
+
+extern unsigned long endtab[];
+
+PixmapPtr
+cfbCreatePixmap (pScreen, width, height, depth)
+ ScreenPtr pScreen;
+ int width;
+ int height;
+ int depth;
+{
+ PixmapPtr pPixmap;
+ int datasize;
+ int paddedWidth;
+
+ paddedWidth = PixmapBytePad(width, depth);
+ 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 unsigned long mask;
+ register unsigned long *p;
+ register unsigned long 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 = endtab[width];
+
+ p = (unsigned long *)(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 unsigned long *pw, *pwFinal;
+ register unsigned long 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 = (unsigned long *)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 unsigned long *pwTmp;
+ int size, tsize;
+
+ tsize = PixmapBytePad(pPix->drawable.width - rot, pPix->drawable.depth);
+ pwTmp = (unsigned long *) 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((long *)pw, (long *)pwTmp,
+ 0, 0, 0, 0,
+ (int)pPix->drawable.width - rot, (int)pPix->drawable.height,
+ size, tsize);
+ cfbQuickBlt((long *)pw, (long *)pw,
+ (int)pPix->drawable.width - rot, 0, 0, 0,
+ rot, (int)pPix->drawable.height,
+ size, size);
+ cfbQuickBlt((long *)pwTmp, (long *)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);
+}
projects / rdpsrv / blobdiff