/******************************************************************** In this file we have GC level replacements for PolyText8/16, ImageText8/16, ImageGlyphBlt and PolyGlyphBlt for NonTE (proportional) fonts. The idea is that everything in this file is device independent. The mentioned GCOps are merely wrappers for the PolyGlyphBltNonTEColorExpansion and ImageGlyphBltNonTEColorExpansion functions which calculate the boxes containing arbitrarily clipped text and passes them to the NonTEGlyphRenderer which will usually be a lower level XAA function which renders these clipped glyphs using the basic color expansion functions exported by the chipset driver. The NonTEGlyphRenderer itself may optionally be driver supplied to facilitate work-arounds/optimizations at a higher level than usual. Written by Mark Vojkovich (mvojkovi@ucsd.edu) ********************************************************************/ #ifdef HAVE_XORG_CONFIG_H #include <xorg-config.h> #endif #include <string.h> #include "misc.h" #include "xf86.h" #include "xf86_OSproc.h" #include <X11/X.h> #include <X11/fonts/font.h> #include "scrnintstr.h" #include "dixfontstr.h" #include "xf86str.h" #include "xaa.h" #include "xaacexp.h" #include "xaalocal.h" #include "gcstruct.h" #include "pixmapstr.h" static void ImageGlyphBltNonTEColorExpansion(ScrnInfoPtr pScrn, int xInit, int yInit, FontPtr font, int fg, int bg, unsigned planemask, RegionPtr cclip, int nglyph, unsigned char* gBase, CharInfoPtr *ppci); static int PolyGlyphBltNonTEColorExpansion(ScrnInfoPtr pScrn, int xInit, int yInit, FontPtr font, int fg, int rop, unsigned planemask, RegionPtr cclip, int nglyph, unsigned char* gBase, CharInfoPtr *ppci); /******************************************************************** GC level replacements for PolyText8/16 and ImageText8/16 for NonTE fonts when using color expansion. ********************************************************************/ int XAAPolyText8NonTEColorExpansion( DrawablePtr pDraw, GCPtr pGC, int x, int y, int count, char *chars ) { XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); unsigned long n; int width = 0; (*pGC->font->get_glyphs)(pGC->font, (unsigned long)count, (unsigned char *)chars, Linear8Bit, &n, infoRec->CharInfo); if(n) { width = PolyGlyphBltNonTEColorExpansion( infoRec->pScrn, x + pDraw->x, y + pDraw->y, pGC->font, pGC->fgPixel, pGC->alu, pGC->planemask, pGC->pCompositeClip, n, FONTGLYPHS(pGC->font), infoRec->CharInfo); } return (x + width); } int XAAPolyText16NonTEColorExpansion( DrawablePtr pDraw, GCPtr pGC, int x, int y, int count, unsigned short *chars ) { XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); unsigned long n; int width = 0; (*pGC->font->get_glyphs)( pGC->font, (unsigned long)count, (unsigned char *)chars, (FONTLASTROW(pGC->font) == 0) ? Linear16Bit : TwoD16Bit, &n, infoRec->CharInfo); if(n) { width = PolyGlyphBltNonTEColorExpansion( infoRec->pScrn, x + pDraw->x, y + pDraw->y, pGC->font, pGC->fgPixel, pGC->alu, pGC->planemask, pGC->pCompositeClip, n, FONTGLYPHS(pGC->font), infoRec->CharInfo); } return (x + width); } void XAAImageText8NonTEColorExpansion( DrawablePtr pDraw, GCPtr pGC, int x, int y, int count, char *chars ){ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); unsigned long n; if(!REGION_NUM_RECTS(pGC->pCompositeClip)) return; (*pGC->font->get_glyphs)(pGC->font, (unsigned long)count, (unsigned char *)chars, Linear8Bit, &n, infoRec->CharInfo); if(n) ImageGlyphBltNonTEColorExpansion( infoRec->pScrn, x + pDraw->x, y + pDraw->y, pGC->font, pGC->fgPixel, pGC->bgPixel, pGC->planemask, pGC->pCompositeClip, n, FONTGLYPHS(pGC->font), infoRec->CharInfo); } void XAAImageText16NonTEColorExpansion( DrawablePtr pDraw, GCPtr pGC, int x, int y, int count, unsigned short *chars ){ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); unsigned long n; if(!REGION_NUM_RECTS(pGC->pCompositeClip)) return; (*pGC->font->get_glyphs)( pGC->font, (unsigned long)count, (unsigned char *)chars, (FONTLASTROW(pGC->font) == 0) ? Linear16Bit : TwoD16Bit, &n, infoRec->CharInfo); if(n) ImageGlyphBltNonTEColorExpansion( infoRec->pScrn, x + pDraw->x, y + pDraw->y, pGC->font, pGC->fgPixel, pGC->bgPixel, pGC->planemask, pGC->pCompositeClip, n, FONTGLYPHS(pGC->font), infoRec->CharInfo); } /******************************************************************** GC level replacements for ImageGlyphBlt and PolyGlyphBlt for NonTE fonts when using color expansion. ********************************************************************/ void XAAImageGlyphBltNonTEColorExpansion( DrawablePtr pDraw, GCPtr pGC, int xInit, int yInit, unsigned int nglyph, CharInfoPtr *ppci, /* array of character info */ pointer pglyphBase /* start of array of glyphs */ ){ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); if(!REGION_NUM_RECTS(pGC->pCompositeClip)) return; ImageGlyphBltNonTEColorExpansion( infoRec->pScrn, xInit + pDraw->x, yInit + pDraw->y, pGC->font, pGC->fgPixel, pGC->bgPixel, pGC->planemask, pGC->pCompositeClip, nglyph, (unsigned char*)pglyphBase, ppci); } void XAAPolyGlyphBltNonTEColorExpansion( DrawablePtr pDraw, GCPtr pGC, int xInit, int yInit, unsigned int nglyph, CharInfoPtr *ppci, /* array of character info */ pointer pglyphBase /* start of array of glyphs */ ){ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC); if(!REGION_NUM_RECTS(pGC->pCompositeClip)) return; PolyGlyphBltNonTEColorExpansion( infoRec->pScrn, xInit + pDraw->x, yInit + pDraw->y, pGC->font, pGC->fgPixel, pGC->alu, pGC->planemask, pGC->pCompositeClip, nglyph, (unsigned char*)pglyphBase, ppci); } /******************************************************************** ImageGlyphBltNonTEColorExpansion - PolyGlyphBltNonTEColorExpansion - These guys compute the clipped pieces of text and send it to the lower-level function which will handle acceleration of arbitrarily clipped text. ********************************************************************/ static int CollectCharacterInfo( NonTEGlyphPtr glyphs, unsigned int nglyph, CharInfoPtr *ppci, FontPtr pfont ){ int i, w = 0; for(i = 0; i < nglyph; i++, ppci++, glyphs++) { glyphs->bits = (unsigned char*)((*ppci)->bits); glyphs->start = w + (*ppci)->metrics.leftSideBearing; glyphs->end = w + (*ppci)->metrics.rightSideBearing; glyphs->yoff = (*ppci)->metrics.ascent; glyphs->height = glyphs->yoff + (*ppci)->metrics.descent; glyphs->srcwidth = PADGLYPHWIDTHBYTES(glyphs->end - glyphs->start); w += (*ppci)->metrics.characterWidth; } return w; } static void PolyGlyphBltAsSingleBitmap ( ScrnInfoPtr pScrn, int nglyph, FontPtr font, int xInit, int yInit, int nbox, BoxPtr pbox, int fg, int rop, unsigned planemask ){ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn); CARD32 *block, *pntr, *bits; int pitch, topLine, botLine, top, bot, height; int Left, Right, Top, Bottom; int LeftEdge, RightEdge; int bitPitch, shift, size, i, skippix; NonTEGlyphPtr glyphs = infoRec->GlyphInfo; Bool extra; Left = xInit + infoRec->GlyphInfo[0].start; Right = xInit + infoRec->GlyphInfo[nglyph - 1].end; Top = yInit - FONTMAXBOUNDS(font,ascent); Bottom = yInit + FONTMAXBOUNDS(font,descent); /* get into the first band that may contain part of our string */ while(nbox && (Top >= pbox->y2)) { pbox++; nbox--; } if(!nbox) return; pitch = (Right - Left + 31) >> 5; size = (pitch << 2) * (Bottom - Top); block = xcalloc(1, size); topLine = 10000; botLine = -10000; while(nglyph--) { top = -glyphs->yoff; bot = top + glyphs->height; if(top < topLine) topLine = top; if(bot > botLine) botLine = bot; skippix = glyphs->start - infoRec->GlyphInfo[0].start; bits = (CARD32*)glyphs->bits; bitPitch = glyphs->srcwidth >> 2; pntr = block + ((FONTMAXBOUNDS(font,ascent) + top) * pitch) + (skippix >> 5); shift = skippix & 31; extra = ((shift + glyphs->end - glyphs->start) > 32); for(i = top; i < bot; i++) { *pntr |= SHIFT_L(*bits, shift); if(extra) *(pntr + 1) |= SHIFT_R(*bits,32 - shift); pntr += pitch; bits += bitPitch; } glyphs++; } pntr = block + ((FONTMAXBOUNDS(font,ascent) + topLine) * pitch); Top = yInit + topLine; Bottom = yInit + botLine; while(nbox && (Top >= pbox->y2)) { pbox++; nbox--; } while(nbox && (Bottom > pbox->y1)) { LeftEdge = max(Left, pbox->x1); RightEdge = min(Right, pbox->x2); if(RightEdge > LeftEdge) { skippix = LeftEdge - Left; topLine = max(Top, pbox->y1); botLine = min(Bottom, pbox->y2); height = botLine - topLine; if(height > 0) (*infoRec->WriteBitmap)(pScrn, LeftEdge, topLine, RightEdge - LeftEdge, height, (unsigned char*)(pntr + ((topLine - Top) * pitch) + (skippix >> 5)), pitch << 2, skippix & 31, fg, -1, rop, planemask); } nbox--; pbox++; } xfree(block); } static void ImageGlyphBltNonTEColorExpansion( ScrnInfoPtr pScrn, int xInit, int yInit, FontPtr font, int fg, int bg, unsigned planemask, RegionPtr cclip, int nglyph, unsigned char* gBase, CharInfoPtr *ppci ){ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn); int skippix, skipglyph, width, n, i; int Left, Right, Top, Bottom; int LeftEdge, RightEdge, ytop, ybot; int nbox = REGION_NUM_RECTS(cclip); BoxPtr pbox = REGION_RECTS(cclip); Bool AlreadySetup = FALSE; width = CollectCharacterInfo(infoRec->GlyphInfo, nglyph, ppci, font); /* find our backing rectangle dimensions */ Left = xInit; Right = Left + width; Top = yInit - FONTASCENT(font); Bottom = yInit + FONTDESCENT(font); /* get into the first band that may contain part of our box */ while(nbox && (Top >= pbox->y2)) { pbox++; nbox--; } while(nbox && (Bottom >= pbox->y1)) { /* handle backing rect first */ LeftEdge = max(Left, pbox->x1); RightEdge = min(Right, pbox->x2); if(RightEdge > LeftEdge) { ytop = max(Top, pbox->y1); ybot = min(Bottom, pbox->y2); if(ybot > ytop) { if(!AlreadySetup) { (*infoRec->SetupForSolidFill)(pScrn, bg, GXcopy, planemask); AlreadySetup = TRUE; } (*infoRec->SubsequentSolidFillRect)(pScrn, LeftEdge, ytop, RightEdge - LeftEdge, ybot - ytop); } } nbox--; pbox++; } nbox = REGION_NUM_RECTS(cclip); pbox = REGION_RECTS(cclip); if(infoRec->WriteBitmap && (nglyph > 1) && ((FONTMAXBOUNDS(font, rightSideBearing) - FONTMINBOUNDS(font, leftSideBearing)) <= 32)) { PolyGlyphBltAsSingleBitmap(pScrn, nglyph, font, xInit, yInit, nbox, pbox, fg, GXcopy, planemask); return; } /* compute an approximate but covering bounding box */ Left = xInit + infoRec->GlyphInfo[0].start; Right = xInit + infoRec->GlyphInfo[nglyph - 1].end; Top = yInit - FONTMAXBOUNDS(font,ascent); Bottom = yInit + FONTMAXBOUNDS(font,descent); /* get into the first band that may contain part of our box */ while(nbox && (Top >= pbox->y2)) { pbox++; nbox--; } /* stop when the lower edge of the box is beyond our string */ while(nbox && (Bottom >= pbox->y1)) { LeftEdge = max(Left, pbox->x1); RightEdge = min(Right, pbox->x2); if(RightEdge > LeftEdge) { /* we're possibly drawing something */ ytop = max(Top, pbox->y1); ybot = min(Bottom, pbox->y2); if(ybot > ytop) { skippix = LeftEdge - xInit; skipglyph = 0; while(skippix >= infoRec->GlyphInfo[skipglyph].end) skipglyph++; skippix = RightEdge - xInit; n = 0; i = skipglyph; while((i < nglyph) && (skippix > infoRec->GlyphInfo[i].start)) { i++; n++; } if(n) (*infoRec->NonTEGlyphRenderer)(pScrn, xInit, yInit, n, infoRec->GlyphInfo + skipglyph, pbox, fg, GXcopy, planemask); } } nbox--; pbox++; } } static int PolyGlyphBltNonTEColorExpansion( ScrnInfoPtr pScrn, int xInit, int yInit, FontPtr font, int fg, int rop, unsigned planemask, RegionPtr cclip, int nglyph, unsigned char* gBase, CharInfoPtr *ppci ){ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn); int skippix, skipglyph, width, n, i; int Left, Right, Top, Bottom; int LeftEdge, RightEdge; int nbox = REGION_NUM_RECTS(cclip); BoxPtr pbox = REGION_RECTS(cclip); width = CollectCharacterInfo(infoRec->GlyphInfo, nglyph, ppci, font); if(!nbox) return width; if((infoRec->WriteBitmap) && (rop == GXcopy) && (nglyph > 1) && ((FONTMAXBOUNDS(font, rightSideBearing) - FONTMINBOUNDS(font, leftSideBearing)) <= 32)) { PolyGlyphBltAsSingleBitmap(pScrn, nglyph, font, xInit, yInit, nbox, pbox, fg, rop, planemask); return width; } /* compute an approximate but covering bounding box */ Left = xInit + infoRec->GlyphInfo[0].start; Right = xInit + infoRec->GlyphInfo[nglyph - 1].end; Top = yInit - FONTMAXBOUNDS(font,ascent); Bottom = yInit + FONTMAXBOUNDS(font,descent); /* get into the first band that may contain part of our string */ while(nbox && (Top >= pbox->y2)) { pbox++; nbox--; } /* stop when the lower edge of the box is beyond our string */ while(nbox && (Bottom >= pbox->y1)) { LeftEdge = max(Left, pbox->x1); RightEdge = min(Right, pbox->x2); if(RightEdge > LeftEdge) { /* we're possibly drawing something */ skippix = LeftEdge - xInit; skipglyph = 0; while(skippix >= infoRec->GlyphInfo[skipglyph].end) skipglyph++; skippix = RightEdge - xInit; n = 0; i = skipglyph; while((i < nglyph) && (skippix > infoRec->GlyphInfo[i].start)) { i++; n++; } if(n) (*infoRec->NonTEGlyphRenderer)(pScrn, xInit, yInit, n, infoRec->GlyphInfo + skipglyph, pbox, fg, rop, planemask); } nbox--; pbox++; } return width; } /* It is possible that the none of the glyphs passed to the NonTEGlyphRenderer will be drawn. This function being called indicates that part of the text string's bounding box is visible but not necessarily that any of the characters are visible */ void XAANonTEGlyphRenderer( ScrnInfoPtr pScrn, int x, int y, int n, NonTEGlyphPtr glyphs, BoxPtr pbox, int fg, int rop, unsigned int planemask ){ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn); int x1, x2, y1, y2, i, w, h, skipleft, skiptop; unsigned char *src; for(i = 0; i < n; i++, glyphs++) { x1 = x + glyphs->start; x2 = x + glyphs->end; y1 = y - glyphs->yoff; y2 = y1 + glyphs->height; if(y1 < pbox->y1) { skiptop = pbox->y1 - y1; y1 = pbox->y1; } else skiptop = 0; if(y2 > pbox->y2) y2 = pbox->y2; h = y2 - y1; if(h <= 0) continue; if(x1 < pbox->x1) { skipleft = pbox->x1 - x1; x1 = pbox->x1; } else skipleft = 0; if(x2 > pbox->x2) x2 = pbox->x2; w = x2 - x1; if(w > 0) { src = glyphs->bits + (skiptop * glyphs->srcwidth); if(skipleft) { src += (skipleft >> 5) << 2; skipleft &= 31; } (*infoRec->WriteBitmap)(pScrn, x1, y1, w, h, src, glyphs->srcwidth, skipleft, fg, -1, rop, planemask); } } }