diff options
Diffstat (limited to 'mfb/mfbtegblt.c')
| -rw-r--r-- | mfb/mfbtegblt.c | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/mfb/mfbtegblt.c b/mfb/mfbtegblt.c deleted file mode 100644 index ff52d8c9e..000000000 --- a/mfb/mfbtegblt.c +++ /dev/null @@ -1,366 +0,0 @@ -/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */ -/*********************************************************** - -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. - -******************************************************************/ - - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <X11/X.h> -#include <X11/Xmd.h> -#include <X11/Xproto.h> -#include "mfb.h" -#include <X11/fonts/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 - -/* - * XXX XXX XXX There is something horribly, massively wrong here. There are - * hardcoded shifts by 64 below; these cannot work on any present-day - * architecture. - */ - -/* - * 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 -#define GetBits4 c = (*char1++ << ShiftAmnt) | \ - SCRRIGHT (*char2++ << ShiftAmnt, xoff2) | \ - SCRRIGHT (*char3++ << ShiftAmnt, xoff3) | \ - SCRRIGHT (*char4++ << ShiftAmnt, xoff4); -#else /* BITMAP_BIT_ORDER != IMAGE_BYTE_ORDER */ -#define GetBits4 c = (*char1++ << ShiftAmnt) | \ - SCRRIGHT (*char2 << ShiftAmnt, xoff2) | \ - SCRRIGHT (*char3 << ShiftAmnt, xoff3) | \ - SCRRIGHT (*char4 << ShiftAmnt, xoff4); \ - char2++; char3++; char4++; -#endif /* BITMAP_BIT_ORDER == IMAGE_BYTE_ORDER */ - -#else /* (BITMAP_BIT_ORDER != MSBFirst) || (GLYPHPADBYTES == 4) */ - -#if BITMAP_BIT_ORDER == IMAGE_BYTE_ORDER -#define GetBits4 c = *char1++ | \ - SCRRIGHT (*char2++, xoff2) | \ - SCRRIGHT (*char3++, xoff3) | \ - SCRRIGHT (*char4++, xoff4); -#else /* BITMAP_BIT_ORDER != IMAGE_BYTE_ORDER */ -#define GetBits4 c = *char1++ | \ - SCRRIGHT (*char2, xoff2) | \ - SCRRIGHT (*char3, xoff3) | \ - SCRRIGHT (*char4, xoff4); \ - char2++; char3++; char4++; -#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; - -#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, pGC->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; - char1 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++)); - char2 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++)); - char3 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++)); - char4 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++)); - - 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; - } -} |