diff options
Diffstat (limited to 'xorg-server/afb/afbtegblt.c')
| -rw-r--r-- | xorg-server/afb/afbtegblt.c | 586 |
1 files changed, 586 insertions, 0 deletions
diff --git a/xorg-server/afb/afbtegblt.c b/xorg-server/afb/afbtegblt.c new file mode 100644 index 000000000..c89b23a5d --- /dev/null +++ b/xorg-server/afb/afbtegblt.c @@ -0,0 +1,586 @@ +/* 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. + +******************************************************************/ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <X11/X.h> +#include <X11/Xmd.h> +#include <X11/Xproto.h> +#include "afb.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. + +*/ + +#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 +afbTEGlyphBlt (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; + int sizeDst; + int depthDst; + PixelType *saveDst; + register PixelType *dst; + register PixelType c; + register int d; + register int xoff1, xoff2, xoff3, xoff4; + register glyphPointer char1, char2, char3, char4; + glyphPointer schar1, schar2, schar3, schar4; +#if PPW == 64 + register int xoff5, xoff6, xoff7, xoff8; + register glyphPointer char5, char6, char7, char8; + glyphPointer schar5, schar6, schar7, schar8; +#endif /* PPW */ + + unsigned char *rrops; +#ifdef USE_LEFTBITS + register PixelType glyphMask; + register PixelType tmpSrc; + register int glyphBytes; +#endif + + afbGetPixelWidthSizeDepthAndPointer(pDrawable, widthDst, sizeDst, depthDst, + 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); + + rrops = ((afbPrivGCPtr)dixLookupPrivate(&pGC->devPrivates, + afbGCPrivateKey))->rropOS; + 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... + */ + afbImageGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase); + case rgnOUT: + return; + } + pdstBase = afbScanlineDeltaNoBankSwitch(pdstBase, ypos, widthDst); + widthGlyphs = widthGlyph * PGSZB; + +#ifdef USE_LEFTBITS + glyphMask = mfbGetendtab(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 */ + schar1 = (glyphPointer)FONTGLYPHBITS(pglyphBase,(*ppci++)); + schar2 = (glyphPointer)FONTGLYPHBITS(pglyphBase,(*ppci++)); + schar3 = (glyphPointer)FONTGLYPHBITS(pglyphBase,(*ppci++)); + schar4 = (glyphPointer)FONTGLYPHBITS(pglyphBase,(*ppci++)); +#if PPW == 64 + schar5 = (glyphPointer)FONTGLYPHBITS(pglyphBase,(*ppci++)); + schar6 = (glyphPointer)FONTGLYPHBITS(pglyphBase,(*ppci++)); + schar7 = (glyphPointer)FONTGLYPHBITS(pglyphBase,(*ppci++)); + schar8 = (glyphPointer)FONTGLYPHBITS(pglyphBase,(*ppci++)); +#endif /* PPW */ + + hTmp = h; + saveDst = afbScanlineOffset(pdstBase, (xpos >> PWSH)); /* switch now */ + +#ifndef FASTCHARS + if (xoff1 + widthGlyphs <= PPW) { + maskpartialbits (xoff1, widthGlyphs, startmask); +#endif + for (d = 0; d < depthDst; d++) { + hTmp = h; + dst = saveDst; + saveDst += sizeDst; /* @@@ NEXT PLANE @@@ */ + + switch (rrops[d]) { + case RROP_BLACK: + while (hTmp--) { +#ifdef FASTCHARS + FASTPUTBITS(0, xoff1, widthGlyphs, dst); +#else + *(dst) &= ~startmask; +#endif + afbScanlineInc(dst, widthDst); + } + break; + case RROP_WHITE: + while (hTmp--) { +#ifdef FASTCHARS + FASTPUTBITS(~0, xoff1, widthGlyphs, dst); +#else + *(dst) |= startmask; +#endif + afbScanlineInc(dst, widthDst); + } + break; + case RROP_INVERT: + char1 = schar1; + char2 = schar2; + char3 = schar3; + char4 = schar4; + /* XXX */ + while (hTmp--) { + GetBits4 +#ifdef FASTCHARS +# if BITMAP_BIT_ORDER == MSBFirst + c >>= PPW - widthGlyphs; +# endif + FASTPUTBITS(~c, xoff1, widthGlyphs, dst); +#else + *(dst) = ((*dst) & ~startmask) | (~SCRRIGHT(c, xoff1) & startmask); +#endif + afbScanlineInc(dst, widthDst); + } + break; + case RROP_COPY: + char1 = schar1; + char2 = schar2; + char3 = schar3; + char4 = schar4; + + while (hTmp--) { + GetBits4 +#ifdef FASTCHARS +# if BITMAP_BIT_ORDER == MSBFirst + c >>= PPW - widthGlyphs; +#endif + FASTPUTBITS(c, xoff1, widthGlyphs, dst); +#else + *(dst) = ((*dst) & ~startmask) | (SCRRIGHT(c, xoff1) & startmask); +#endif + afbScanlineInc(dst, widthDst); + } + break; + case RROP_NOP: + break; + } /* switch (rrops[d]) */ + } /* for (d = ... ) */ +#ifndef FASTCHARS + } else { + maskPPWbits (xoff1, widthGlyphs, startmask, endmask); + nfirst = PPW - xoff1; + for (d = 0; d < depthDst; d++) { + hTmp = h; + dst = saveDst; + saveDst += sizeDst; /* @@@ NEXT PLANE @@@ */ + + switch (rrops[d]) { + case RROP_BLACK: + while (hTmp--) { + dst[0] &= ~startmask; + dst[1] &= ~endmask; + afbScanlineInc(dst, widthDst); + } + break; + case RROP_WHITE: + while (hTmp--) { + dst[0] |= startmask; + dst[1] |= endmask; + afbScanlineInc(dst, widthDst); + } + break; + case RROP_INVERT: + char1 = schar1; + char2 = schar2; + char3 = schar3; + char4 = schar4; + + while (hTmp--) { + GetBits4 + dst[0] = (dst[0] & ~startmask) | (~SCRRIGHT(c,xoff1) & startmask); + dst[1] = (dst[1] & ~endmask) | (~SCRLEFT(c,nfirst) & endmask); + afbScanlineInc(dst, widthDst); + } + break; + case RROP_COPY: + char1 = schar1; + char2 = schar2; + char3 = schar3; + char4 = schar4; + + while (hTmp--) { + GetBits4 + dst[0] = (dst[0] & ~startmask) | (SCRRIGHT(c,xoff1) & startmask); + dst[1] = (dst[1] & ~endmask) | (SCRLEFT(c,nfirst) & endmask); + afbScanlineInc(dst, widthDst); + } + break; + + case RROP_NOP: + break; + } /* switch */ + } /* for (d = ... ) */ + } +#endif + xpos += widthGlyphs; + } + } + + while(nglyph--) { + xoff1 = xpos & PIM; + schar1 = (glyphPointer) FONTGLYPHBITS(pglyphBase,(*ppci++)); + hTmp = h; + saveDst = afbScanlineOffset(pdstBase, (xpos >> PWSH)); + + if (xoff1 + widthGlyph <= PPW) { + maskpartialbits (xoff1, widthGlyph, startmask); + + for (d = 0; d < depthDst; d++) { + hTmp = h; + dst = saveDst; + saveDst += sizeDst; /* @@@ NEXT PLANE @@@ */ + char1 = schar1; + + switch (rrops[d]) { + case RROP_BLACK: + while (hTmp--) { + (*dst) &= ~startmask; + afbScanlineInc(dst, widthDst); + } + break; + case RROP_WHITE: + while (hTmp--) { + (*dst) |= startmask; + afbScanlineInc(dst, widthDst); + } + break; + case RROP_INVERT: + 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 (~c,xoff1,widthGlyph,dst); +#else + GetBits1 + (*dst) = ((*dst) & ~startmask) | (~SCRRIGHT(c, xoff1) & startmask); +#endif + afbScanlineInc(dst, widthDst); + } + break; + case RROP_COPY: + 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 (c,xoff1,widthGlyph,dst); +#else + GetBits1 + (*dst) = ((*dst) & ~startmask) | (SCRRIGHT(c, xoff1) & startmask); +#endif + afbScanlineInc(dst, widthDst); + } + break; + case RROP_NOP: + break; + } /* switch */ + } /* for (d = ...) */ + } else { + maskPPWbits (xoff1, widthGlyph, startmask, endmask); + nfirst = PPW - xoff1; + + for (d = 0; d < depthDst; d++) { + hTmp = h; + dst = saveDst; + saveDst += sizeDst; /* @@@ NEXT PLANE @@@ */ + char1 = schar1; + + switch (rrops[d]) { + case RROP_BLACK: + while (hTmp--) { + dst[0] &= ~startmask; + dst[1] &= ~endmask; + afbScanlineInc(dst, widthDst); + } + break; + case RROP_WHITE: + while (hTmp--) { + dst[0] |= startmask; + dst[1] |= endmask; + afbScanlineInc(dst, widthDst); + } + break; + case RROP_INVERT: + while (hTmp--) { + GetBits1 + dst[0] = (dst[0] & ~startmask) | (~SCRRIGHT(c,xoff1) & startmask); + dst[1] = (dst[1] & ~endmask) | (~SCRLEFT(c,nfirst) & endmask); + afbScanlineInc(dst, widthDst); + } + break; + case RROP_COPY: + while (hTmp--) { + GetBits1 + dst[0] = (dst[0] & ~startmask) | (SCRRIGHT(c,xoff1) & startmask); + dst[1] = (dst[1] & ~endmask) | (SCRLEFT(c,nfirst) & endmask); + afbScanlineInc(dst, widthDst); + } + break; + case RROP_NOP: + break; + } /* switch */ + } /* for (d = ...) */ + } + + xpos += widthGlyph; + } +} |