/*********************************************************** 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 #endif #include #include #include #include "cfb.h" #include #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; CfbBits *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 CfbBits *pdst;/* pointer to current longword in dst */ int hTmp; /* counter for height */ BoxRec bbox; /* for clipping */ register int wtmp,xtemp,width; CfbBits bgfill,fgfill,*ptemp,tmpDst1,tmpDst2,*pdtmp; #if PSZ != 24 int tmpx; #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... */ cfbImageGlyphBlt8(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 w = 1; ptemp = (CfbBits *)(pglyph + ((xtemp *3)>> 2)); getstipplepixels24(ptemp,xtemp,0,&bgfill,&tmpDst1, xtemp); getstipplepixels24(ptemp,xtemp,1,&fgfill,&tmpDst2, xtemp); #else tmpx = x & PIM; w = min(width, PPW - tmpx); w = min(w, (PGSZ - xtemp)); ptemp = (CfbBits *)(pglyph + (xtemp >> MFB_PWSH)); getstipplepixels(ptemp,xtemp,w,0,&bgfill,&tmpDst1); getstipplepixels(ptemp,xtemp,w,1,&fgfill,&tmpDst2); #endif { CfbBits tmpDst = tmpDst1 | tmpDst2; #if PSZ == 24 CfbBits *pdsttmp = pdst + ((x*3) >> 2); putbits24(tmpDst,w,pdsttmp,pGC->planemask,x); #else CfbBits *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; } }