--- /dev/null
+/* $XConsortium: cfbtegblt.c,v 5.9 94/04/17 20:29:03 dpw Exp $ */
+/* $XFree86: xc/programs/Xserver/cfb/cfbtegblt.c,v 3.0 1996/06/29 09:05:52 dawes 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.
+
+******************************************************************/
+#include "X.h"
+#include "Xmd.h"
+#include "Xproto.h"
+#include "cfb.h"
+#include "fontstruct.h"
+#include "dixfontstr.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "regionstr.h"
+#include "cfbmskbits.h"
+#include "mi.h"
+#define MFB_CONSTS_ONLY
+#include "maskbits.h"
+
+/*
+ this works for fonts with glyphs <= 32 bits wide, on an
+ arbitrarily deep display. Use cfbTEGlyphBlt8 for 8 bit displays.
+
+ This should be called only with a terminal-emulator font;
+this means that the FIXED_METRICS flag is set, and that
+glyphbounds == charbounds.
+
+ in theory, this goes faster; even if it doesn't, it reduces the
+flicker caused by writing a string over itself with image text (since
+the background gets repainted per character instead of per string.)
+this seems to be important for some converted X10 applications.
+
+ Image text looks at the bits in the glyph and the fg and bg in the
+GC. it paints a rectangle, as defined in the protocol dcoument,
+and the paints the characters.
+
+*/
+
+void
+cfbTEGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase)
+ DrawablePtr pDrawable;
+ GC *pGC;
+ int x, y;
+ unsigned int nglyph;
+ CharInfoPtr *ppci; /* array of character info */
+ pointer pglyphBase; /* start of array of glyphs */
+{
+ FontPtr pfont = pGC->font;
+ int widthDst;
+ unsigned long *pdstBase; /* pointer to longword with top row
+ of current glyph */
+
+ int w; /* width of glyph and char */
+ int h; /* height of glyph and char */
+ register int xpos=x; /* current x%32 */
+ int ypos=y; /* current y%32 */
+ register unsigned char *pglyph;
+ int widthGlyph;
+
+ register unsigned long *pdst;/* pointer to current longword in dst */
+ int hTmp; /* counter for height */
+ BoxRec bbox; /* for clipping */
+
+ register int wtmp,xtemp,width;
+ unsigned long bgfill,fgfill,*ptemp,tmpDst1,tmpDst2,*pdtmp;
+ int tmpx;
+#if PSZ == 24
+ int xIndex;
+#endif
+
+ xpos += pDrawable->x;
+ ypos += pDrawable->y;
+
+ cfbGetLongWidthAndPointer (pDrawable, widthDst, pdstBase)
+
+ wtmp = FONTMAXBOUNDS(pfont,characterWidth);
+ h = FONTASCENT(pfont) + FONTDESCENT(pfont);
+ widthGlyph = GLYPHWIDTHBYTESPADDED(*ppci);
+
+ xpos += FONTMAXBOUNDS(pfont,leftSideBearing);
+ ypos -= FONTASCENT(pfont);
+
+ bbox.x1 = xpos;
+ bbox.x2 = xpos + (wtmp * nglyph);
+ bbox.y1 = ypos;
+ bbox.y2 = ypos + h;
+
+ fgfill = PFILL(pGC->fgPixel);
+ bgfill = PFILL(pGC->bgPixel);
+
+ switch (RECT_IN_REGION(pGC->pScreen, cfbGetCompositeClip(pGC), &bbox))
+ {
+ case rgnOUT:
+ break;
+ case rgnPART:
+ /* this is the WRONG thing to do, but it works.
+ calling the non-terminal text is easy, but slow, given
+ what we know about the font.
+
+ the right thing to do is something like:
+ for each clip rectangle
+ compute at which row the glyph starts to be in it,
+ and at which row the glyph ceases to be in it
+ compute which is the first glyph inside the left
+ edge, and the last one inside the right edge
+ draw a fractional first glyph, using only
+ the rows we know are in
+ draw all the whole glyphs, using the appropriate rows
+ draw any pieces of the last glyph, using the right rows
+
+ this way, the code would take advantage of knowing that
+ all glyphs are the same height and don't overlap.
+
+ one day...
+ */
+ miImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
+ break;
+ case rgnIN:
+
+ pdtmp = pdstBase + (widthDst * ypos);
+ while(nglyph--)
+ {
+
+ pglyph = FONTGLYPHBITS(pglyphBase, *ppci++);
+ pdst = pdtmp;
+ hTmp = h;
+
+ while (hTmp--)
+ {
+ x = xpos;
+ width = wtmp;
+ xtemp = 0;
+
+ while (width > 0)
+ {
+#if PSZ == 24
+ tmpx = x & 3;
+ w = 1;
+#else
+ tmpx = x & PIM;
+ w = min(width, PPW - tmpx);
+ w = min(w, (PGSZ - xtemp));
+#endif
+
+#if PSZ == 24
+ ptemp = (unsigned long *)(pglyph + ((xtemp *3)>> 2));
+#else
+ ptemp = (unsigned long *)(pglyph + (xtemp >> MFB_PWSH));
+#endif
+#if PSZ == 24
+ getstipplepixels24(ptemp,xtemp,0,&bgfill,&tmpDst1, xtemp);
+ getstipplepixels24(ptemp,xtemp,1,&fgfill,&tmpDst2, xtemp);
+#else
+ getstipplepixels(ptemp,xtemp,w,0,&bgfill,&tmpDst1);
+ getstipplepixels(ptemp,xtemp,w,1,&fgfill,&tmpDst2);
+#endif
+
+ {
+ unsigned long tmpDst = tmpDst1 | tmpDst2;
+#if PSZ == 24
+ unsigned long *pdsttmp = pdst + ((x*3) >> 2);
+ putbits24(tmpDst,tmpx,w,pdsttmp,pGC->planemask,x);
+#else
+ unsigned long *pdsttmp = pdst + (x >> PWSH);
+ putbits(tmpDst,tmpx,w,pdsttmp,pGC->planemask);
+#endif
+ }
+ x += w;
+ xtemp += w;
+ width -= w;
+ }
+ pglyph += widthGlyph;
+ pdst += widthDst;
+ }
+ xpos += wtmp;
+ }
+ break;
+ }
+}
projects / rdpsrv / blobdiff