+++ /dev/null
-/* $XConsortium: mfbtegblt.c,v 5.14 94/04/17 20:28:35 dpw Exp $ */
-/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
-/***********************************************************
-
-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 "mfb.h"
-#include "fontstruct.h"
-#include "dixfontstr.h"
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "regionstr.h"
-#include "maskbits.h"
-
-/*
- this works for fonts with glyphs <= PPW bits wide.
-
- 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.
-
- to avoid source proliferation, this file is compiled
-two times:
- MFBTEGLYPHBLT OP
- mfbTEGlyphBltWhite (white text, black bg )
- mfbTEGlyphBltBlack ~ (black text, white bg )
-
-*/
-
-#if defined(NO_3_60_CG4) && defined(FASTPUTBITS) && defined(FASTGETBITS)
-#define FASTCHARS
-#endif
-
-/*
- * this macro "knows" that only characters <= 8 bits wide will
- * fit this case (which is why it is independent of GLYPHPADBYTES)
- */
-
-#if (BITMAP_BIT_ORDER == MSBFirst) && (GLYPHPADBYTES != 4)
-#if GLYPHPADBYTES == 1
-#define ShiftAmnt 24
-#else
-#define ShiftAmnt 16
-#endif
-
-/*
- * Note: for BITMAP_BIT_ORDER != IMAGE_BYTE_ORDER, SCRRIGHT() evaluates its
- * first argument more than once. Thus the imbedded char++ have to be moved.
- * (DHD)
- */
-#if BITMAP_BIT_ORDER == IMAGE_BYTE_ORDER
-#if PPW == 32
-#define GetBits4 c = (*char1++ << ShiftAmnt) | \
- SCRRIGHT (*char2++ << ShiftAmnt, xoff2) | \
- SCRRIGHT (*char3++ << ShiftAmnt, xoff3) | \
- SCRRIGHT (*char4++ << ShiftAmnt, xoff4);
-#else /* PPW */
-#define GetBits4 c = ((unsigned long)(*char1++ << ShiftAmnt) << 32 ) | \
- (SCRRIGHT (*char2++ << ShiftAmnt, xoff2) << 32 ) | \
- (SCRRIGHT (*char3++ << ShiftAmnt, xoff3) << 32 ) | \
- (SCRRIGHT (*char4++ << ShiftAmnt, xoff4) << 32 ) | \
- (*char5++ << ShiftAmnt) | \
- SCRRIGHT (*char6++ << ShiftAmnt, xoff6) | \
- SCRRIGHT (*char7++ << ShiftAmnt, xoff7) | \
- SCRRIGHT (*char8++ << ShiftAmnt, xoff8);
-#endif /* PPW */
-#else /* BITMAP_BIT_ORDER != IMAGE_BYTE_ORDER */
-#if PPW == 32
-#define GetBits4 c = (*char1++ << ShiftAmnt) | \
- SCRRIGHT (*char2 << ShiftAmnt, xoff2) | \
- SCRRIGHT (*char3 << ShiftAmnt, xoff3) | \
- SCRRIGHT (*char4 << ShiftAmnt, xoff4); \
- char2++; char3++; char4++;
-#else /* PPW == 64 */
-#define GetBits4 c = ((unsigned long)(*char1++ << ShiftAmnt) << 32 ) | \
- (SCRRIGHT (*char2 << ShiftAmnt, xoff2) << 32 ) | \
- (SCRRIGHT (*char3 << ShiftAmnt, xoff3) << 32 ) | \
- (SCRRIGHT (*char4 << ShiftAmnt, xoff4) << 32 ) | \
- (*char5++ << ShiftAmnt) | \
- SCRRIGHT (*char6 << ShiftAmnt, xoff6) | \
- SCRRIGHT (*char7 << ShiftAmnt, xoff7) | \
- SCRRIGHT (*char8 << ShiftAmnt, xoff8); \
- char2++; char3++; char4++; char6++; char7++; char8++;
-#endif /* PPW */
-#endif /* BITMAP_BIT_ORDER == IMAGE_BYTE_ORDER */
-
-#else /* (BITMAP_BIT_ORDER != MSBFirst) || (GLYPHPADBYTES == 4) */
-
-#if BITMAP_BIT_ORDER == IMAGE_BYTE_ORDER
-#if PPW == 32
-#define GetBits4 c = *char1++ | \
- SCRRIGHT (*char2++, xoff2) | \
- SCRRIGHT (*char3++, xoff3) | \
- SCRRIGHT (*char4++, xoff4);
-#else /* PPW == 64 */
-#define GetBits4 c = (unsigned long)(((*char1++) << 64 ) | \
- (SCRRIGHT (*char2++, xoff2) << 64 ) | \
- (SCRRIGHT (*char3++, xoff3) << 64 ) | \
- (SCRRIGHT (*char4++, xoff4) << 64 ) | \
- SCRRIGHT (*char5++, xoff5) | \
- SCRRIGHT (*char6++, xoff6) | \
- SCRRIGHT (*char7++, xoff7) | \
- SCRRIGHT (*char8++, xoff8));
-#endif /* PPW */
-#else /* BITMAP_BIT_ORDER != IMAGE_BYTE_ORDER */
-#if PPW == 32
-#define GetBits4 c = *char1++ | \
- SCRRIGHT (*char2, xoff2) | \
- SCRRIGHT (*char3, xoff3) | \
- SCRRIGHT (*char4, xoff4); \
- char2++; char3++; char4++;
-#else /* PPW == 64 */
-#define GetBits4 c = (unsigned long)(((*char1++) << 64 ) | \
- (SCRRIGHT (*char2, xoff2) << 64 ) | \
- (SCRRIGHT (*char3, xoff3) << 64 ) | \
- (SCRRIGHT (*char4, xoff4) << 64 ) | \
- SCRRIGHT (*char5, xoff5) | \
- SCRRIGHT (*char6, xoff6) | \
- SCRRIGHT (*char7, xoff7) | \
- SCRRIGHT (*char8, xoff8)); \
- char2++; char3++; char4++; \
- char5++; char6++; char7++; char8++;
-#endif /* PPW */
-#endif /* BITMAP_BIT_ORDER == IMAGE_BYTE_ORDER */
-
-#endif /* BITMAP_BIT_ORDER && GLYPHPADBYTES */
-
-
-#if GLYPHPADBYTES == 1
-typedef unsigned char *glyphPointer;
-#define USE_LEFTBITS
-#endif
-
-#if GLYPHPADBYTES == 2
-typedef unsigned short *glyphPointer;
-#define USE_LEFTBITS
-#endif
-
-#if GLYPHPADBYTES == 4
-typedef unsigned int *glyphPointer;
-#endif
-
-#ifdef USE_LEFTBITS
-#define GetBits1 getleftbits (char1, widthGlyph, c); \
- c &= glyphMask; \
- char1 = (glyphPointer) (((char *) char1) + glyphBytes);
-#else
-#define GetBits1 c = *char1++;
-#endif
-
-void
-MFBTEGLYPHBLT(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;
- PixelType *pdstBase; /* pointer to longword with top row
- of current glyph */
-
- int h; /* height of glyph and char */
- register int xpos; /* current x */
- int ypos; /* current y */
- int widthGlyph;
-
- int hTmp; /* counter for height */
- register PixelType startmask, endmask;
- int nfirst; /* used if glyphs spans a longword boundary */
- BoxRec bbox; /* for clipping */
- int widthGlyphs;
- register PixelType *dst;
- register PixelType c;
- register int xoff1, xoff2, xoff3, xoff4;
- register glyphPointer char1, char2, char3, char4;
-#if PPW == 64
- register int xoff5, xoff6, xoff7, xoff8;
- register glyphPointer char5, char6, char7, char8;
-#endif /* PPW */
-
-#ifdef USE_LEFTBITS
- register PixelType glyphMask;
- register PixelType tmpSrc;
- register int glyphBytes;
-#endif
-
- if (!(pGC->planemask & 1))
- return;
-
- mfbGetPixelWidthAndPointer(pDrawable, widthDst, pdstBase);
-
- xpos = x + pDrawable->x;
- ypos = y + pDrawable->y;
-
- widthGlyph = FONTMAXBOUNDS(pfont,characterWidth);
- h = FONTASCENT(pfont) + FONTDESCENT(pfont);
-
- xpos += FONTMAXBOUNDS(pfont,leftSideBearing);
- ypos -= FONTASCENT(pfont);
-
- bbox.x1 = xpos;
- bbox.x2 = xpos + (widthGlyph * nglyph);
- bbox.y1 = ypos;
- bbox.y2 = ypos + h;
-
- switch (RECT_IN_REGION(pGC->pScreen,
- ((mfbPrivGC *)(pGC->devPrivates[mfbGCPrivateIndex].ptr))->pCompositeClip, &bbox))
- {
- 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...
- */
- CLIPTETEXT(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
- case rgnOUT:
- return;
- }
- pdstBase = mfbScanlineDeltaNoBankSwitch(pdstBase, ypos, widthDst);
- widthGlyphs = widthGlyph * PGSZB;
-
-#ifdef USE_LEFTBITS
- glyphMask = endtab[widthGlyph];
- glyphBytes = GLYPHWIDTHBYTESPADDED(*ppci);
-#endif
-
- if (nglyph >= PGSZB && widthGlyphs <= PPW)
- {
- while (nglyph >= PGSZB)
- {
- nglyph -= PGSZB;
- xoff1 = xpos & PIM;
- xoff2 = widthGlyph;
- xoff3 = xoff2 + widthGlyph;
- xoff4 = xoff3 + widthGlyph;
-#if PPW == 64
- xoff5 = xoff4 + widthGlyph;
- xoff6 = xoff5 + widthGlyph;
- xoff7 = xoff6 + widthGlyph;
- xoff8 = xoff7 + widthGlyph;
-#endif /* PPW */
- char1 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
- char2 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
- char3 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
- char4 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
-#if PPW == 64
- char5 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
- char6 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
- char7 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
- char8 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
-#endif /* PPW */
-
- hTmp = h;
- dst = mfbScanlineOffset(pdstBase, (xpos >> PWSH)); /* switch now */
-
-#ifndef FASTCHARS
- if (xoff1 + widthGlyphs <= PPW)
- {
- maskpartialbits (xoff1, widthGlyphs, startmask);
-#endif
- while (hTmp--)
- {
- GetBits4
-#ifdef FASTCHARS
-# if BITMAP_BIT_ORDER == MSBFirst
- c >>= PPW - widthGlyphs;
-# endif
- FASTPUTBITS(OP(c), xoff1, widthGlyphs, dst);
-#else
- *(dst) = (*dst) & ~startmask | OP(SCRRIGHT(c, xoff1)) & startmask;
-#endif
- mfbScanlineInc(dst, widthDst);
- }
-#ifndef FASTCHARS
- }
- else
- {
- maskPPWbits (xoff1, widthGlyphs, startmask, endmask);
- nfirst = PPW - xoff1;
- while (hTmp--)
- {
- GetBits4
- dst[0] = dst[0] & ~startmask |
- OP(SCRRIGHT(c,xoff1)) & startmask;
- dst[1] = dst[1] & ~endmask |
- OP(SCRLEFT(c,nfirst)) & endmask;
- mfbScanlineInc(dst, widthDst);
- }
- }
-#endif
- xpos += widthGlyphs;
- }
- }
-
- while(nglyph--)
- {
- xoff1 = xpos & PIM;
- char1 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++));
- hTmp = h;
- dst = mfbScanlineOffset(pdstBase, (xpos >> PWSH));
-
-#ifndef FASTCHARS
- if (xoff1 + widthGlyph <= PPW)
- {
- maskpartialbits (xoff1, widthGlyph, startmask);
-#endif
- while (hTmp--)
- {
-#ifdef FASTCHARS
-#ifdef USE_LEFTBITS
- FASTGETBITS (char1,0,widthGlyph,c);
- char1 = (glyphPointer) (((char *) char1) + glyphBytes);
-#else
- c = *char1++;
-#if BITMAP_BIT_ORDER == MSBFirst
- c >>= PPW - widthGlyph;
-#endif
-#endif
- FASTPUTBITS (OP(c),xoff1,widthGlyph,dst);
-#else
- GetBits1
- (*dst) = (*dst) & ~startmask | OP(SCRRIGHT(c, xoff1)) & startmask;
-#endif
- mfbScanlineInc(dst, widthDst);
- }
-#ifndef FASTCHARS
- }
- else
- {
- maskPPWbits (xoff1, widthGlyph, startmask, endmask);
- nfirst = PPW - xoff1;
- while (hTmp--)
- {
- GetBits1
- dst[0] = dst[0] & ~startmask |
- OP(SCRRIGHT(c,xoff1)) & startmask;
- dst[1] = dst[1] & ~endmask |
- OP(SCRLEFT(c,nfirst)) & endmask;
- mfbScanlineInc(dst, widthDst);
- }
- }
-#endif
- xpos += widthGlyph;
- }
-}
projects / rdpsrv / blobdiff