diff options
Diffstat (limited to 'xorg-server/hw/xfree86/xf4bpp/mfbimggblt.c')
| -rw-r--r-- | xorg-server/hw/xfree86/xf4bpp/mfbimggblt.c | 505 |
1 files changed, 0 insertions, 505 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/mfbimggblt.c b/xorg-server/hw/xfree86/xf4bpp/mfbimggblt.c deleted file mode 100644 index 4f9561161..000000000 --- a/xorg-server/hw/xfree86/xf4bpp/mfbimggblt.c +++ /dev/null @@ -1,505 +0,0 @@ -/* 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_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include "xf4bpp.h" -#include "OScompiler.h" -#include "mfbmap.h" -#include "mfb.h" -#include "maskbits.h" -#include "mi.h" -#include "dixfontstr.h" -#include "ppcGCstr.h" -#include "wm3.h" - -#include "xf86str.h" /* for pScrn->vtSema */ -extern ScrnInfoPtr *xf86Screens; - -/* - we should eventually special-case fixed-width fonts for ImageText. - - this works for fonts with glyphs <= 32 bits wide. - - the clipping calculations are done for worst-case fonts. -we make no assumptions about the heights, widths, or bearings -of the glyphs. if we knew that the glyphs are all the same height, -we could clip the tops and bottoms per clipping box, rather -than per character per clipping box. if we knew that the glyphs' -left and right bearings were wlle-behaved, we could clip a single -character at the start, output until the last unclipped -character, and then clip the last one. this is all straightforward -to determine based on max-bounds and min-bounds from the font. - there is some inefficiency introduced in the per-character -clipping to make what's going on clearer. - - (it is possible, for example, for a font to be defined in which the -next-to-last character in a font would be clipped out, but the last -one wouldn't. the code below deals with this.) - - 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 -three times: - MFBIMAGEGLYPHBLT OPEQ - mfbImageGlyphBltWhite |= - mfbImageGlyphBltBlack &=~ - - the register allocations for startmask and endmask may not -be the right thing. are there two other deserving candidates? -xoff, pdst, pglyph, and tmpSrc seem like the right things, though. -*/ - -/* Forward declarations -- GJA */ -static void doImageGlyphBlt( - DrawablePtr, - GC *, - int, - int, - unsigned int, - CharInfoPtr *, - unsigned char *, - ExtentInfoRec * -); - -void -xf4bppImageGlyphBlt(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 */ -{ - ExtentInfoRec info; /* used by QueryGlyphExtents() */ - xRectangle backrect;/* backing rectangle to paint. - in the general case, NOT necessarily - the same as the string's bounding box - */ - /* GJA -- I agree, this ALL should be moved to GC validation. */ - if ( (pDrawable->type != DRAWABLE_WINDOW) || (pGC->alu != GXcopy) || - !xf86Screens[pDrawable->pScreen->myNum]->vtSema || - ((pGC->font) && - (FONTMAXBOUNDS(pGC->font,rightSideBearing) - - FONTMINBOUNDS(pGC->font,leftSideBearing) > 32 || - FONTMINBOUNDS(pGC->font,characterWidth) < 0)) ) { - miImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase); - } else { - ppcPrivGC *pPrivGC; - int oldfillStyle, oldfg, oldalu; - - if (!(pGC->planemask & 0x0F)) - return; - - QueryGlyphExtents(pGC->font, ppci, (unsigned long)nglyph, &info); - - backrect.x = x; - backrect.y = y - FONTASCENT(pGC->font); - backrect.width = info.overallWidth; - backrect.height = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font); - - - pPrivGC = (ppcPrivGC *)dixLookupPrivate(&pGC->devPrivates, - mfbGetGCPrivateKey()); - oldfillStyle = pPrivGC->colorRrop.fillStyle; /* GJA */ - oldfg = pPrivGC->colorRrop.fgPixel; /* GJA */ - oldalu = pPrivGC->colorRrop.alu; /* GJA */ - - pPrivGC->colorRrop.fillStyle = FillSolid; /* GJA */ - pPrivGC->colorRrop.fgPixel = pGC->bgPixel; /* GJA */ - pGC->fgPixel = pGC->bgPixel; - pPrivGC->colorRrop.alu = GXcopy; /* GJA */ - pGC->alu = GXcopy; - - /* Required fields: - * colorRrop.alu, colorRrop.planemask, colorRrop.fgPixel - */ - xf4bppPolyFillRect(pDrawable, pGC, 1, &backrect); - - pPrivGC->colorRrop.fgPixel = oldfg; /* GJA */ - pGC->fgPixel = oldfg; - - /* the faint-hearted can open their eyes now */ - - DO_WM3(pGC,doImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, - pglyphBase,&info)) - - pPrivGC->colorRrop.fillStyle = oldfillStyle; /* GJA */ - pPrivGC->colorRrop.alu = oldalu; /* GJA */ - pGC->alu = oldalu; - } - -} - -static void -doImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase,infop) - DrawablePtr pDrawable; - GC *pGC; - int x, y; - unsigned int nglyph; - CharInfoPtr *ppci; /* array of character info */ - unsigned char *pglyphBase; /* start of array of glyphs */ - ExtentInfoRec* infop; /* used by QueryGlyphExtents() */ -{ - BoxRec bbox; /* string's bounding box */ - - CharInfoPtr pci; - int xorg, yorg; /* origin of drawable in bitmap */ - int widthDst; /* width of dst in longwords */ - - /* these keep track of the character origin */ - CARD32 *pdstBase; - /* points to longword with character origin */ - int xchar; /* xorigin of char (mod 32) */ - - /* these are used for placing the glyph */ - register int xoff; /* x offset of left edge of glyph (mod 32) */ - register CARD32 *pdst; - /* pointer to current longword in dst */ - - int w; /* width of glyph in bits */ - int h; /* height of glyph */ - int widthGlyph; /* width of glyph, in bytes */ - register unsigned char *pglyph; - /* pointer to current row of glyph */ - - /* used for putting down glyph */ - register unsigned int tmpSrc; - /* for getting bits from glyph */ - register int startmask; - register int endmask; - - register int nFirst;/* bits of glyph in current longword */ - - xorg = pDrawable->x; - yorg = pDrawable->y; - if (pDrawable->type == DRAWABLE_WINDOW) - { - pdstBase = (CARD32 *) - (((PixmapPtr)(pDrawable->pScreen->devPrivate))->devPrivate.ptr); - widthDst = (int) - (((PixmapPtr)(pDrawable->pScreen->devPrivate))->devKind) >> 2; - } - else - { - pdstBase = (CARD32 *)(((PixmapPtr)pDrawable)->devPrivate.ptr); - widthDst = (int)(((PixmapPtr)pDrawable)->devKind) >> 2; - } - - x += xorg; - y += yorg; - bbox.x1 = x + infop->overallLeft; - bbox.x2 = x + infop->overallRight; - bbox.y1 = y - infop->overallAscent; - bbox.y2 = y + infop->overallDescent; - - /* UNCLEAN CODE - we know the mfbPolyFillRect uses only three fields in - devPrivate[mfbGetGCPrivateIndex()].ptr, two of which (the rotated - tile/stipple and the ropFillArea) are - irrelevant for solid filling, so we just poke the FillArea - field. the GC is now in an inconsistent state, but we'll fix - it as soon as PolyFillRect returns. fortunately, the server - is single threaded. - - NOTE: - if you are not using the standard mfbFillRectangle code, you - need to poke any fields in the GC the rectangle stuff need - (probably alu, fgPixel, and fillStyle) and in devPrivate[mfbGetGCPrivateIndex()].ptr - (probably rop or ropFillArea.) You could just call ValidateGC, - but that is usually not a cheap thing to do. - */ - - switch (RECT_IN_REGION(pGC->pScreen, pGC->pCompositeClip, &bbox)) - { - case rgnOUT: - break; - case rgnIN: - pdstBase = pdstBase + (widthDst * y) + (x >> PWSH); - xchar = x & PIM; - - while(nglyph--) - { - pci = *ppci; - pglyph = FONTGLYPHBITS(pglyphBase, pci); - w = pci->metrics.rightSideBearing - pci->metrics.leftSideBearing; - h = pci->metrics.ascent + pci->metrics.descent; - widthGlyph = GLYPHWIDTHBYTESPADDED(pci); - - /* start at top scanline of glyph */ - pdst = pdstBase - (pci->metrics.ascent * widthDst); - - /* find correct word in scanline and x offset within it - for left edge of glyph - */ - xoff = xchar + pci->metrics.leftSideBearing; - if (xoff > PIM) - { - pdst++; - xoff &= PIM; - } - else if (xoff < 0) - { - xoff += PPW; - pdst--; - } - - if ((xoff + w) <= PPW) - { - /* glyph all in one longword */ - maskpartialbits(xoff, w, startmask); - - while (h--) - { - getleftbits(pglyph, w, tmpSrc); - UPDRW(pdst,(SCRRIGHT(tmpSrc, xoff) & startmask)); - pglyph += widthGlyph; - pdst += widthDst; - } - } - else - { - /* glyph crosses longword boundary */ - maskPPWbits(xoff, w, startmask, endmask); - nFirst = PPW - xoff; - while (h--) - { - getleftbits(pglyph, w, tmpSrc); - UPDRW(pdst,(SCRRIGHT(tmpSrc, xoff) & startmask)); - UPDRW(&(pdst[1]),(SCRLEFT(tmpSrc, nFirst) & endmask)); - pglyph += widthGlyph; - pdst += widthDst; - } - } /* glyph crosses longwords boundary */ - - /* update character origin */ - x += pci->metrics.characterWidth; - xchar += pci->metrics.characterWidth; - if (xchar > PLST) - { - xchar -= PPW; - pdstBase++; - } - else if (xchar < 0) - { - xchar += PPW; - pdstBase--; - } - ppci++; - } /* while nglyph-- */ - break; - case rgnPART: - { - TEXTPOS *ppos; - int nbox; - BoxPtr pbox; - RegionPtr cclip; - int xpos; /* x position of char origin */ - unsigned int i; - BoxRec clip; - int leftEdge, rightEdge; - int topEdge, bottomEdge; - int glyphRow; /* first row of glyph not wholly - clipped out */ - int glyphCol; /* leftmost visible column of glyph */ -#if GETLEFTBITS_ALIGNMENT > 1 - int getWidth; /* bits to get from glyph */ -#endif - - if(!(ppos = (TEXTPOS *)xalloc(nglyph * sizeof(TEXTPOS)))) - return; - - pdstBase = pdstBase + (widthDst * y) + (x >> PWSH); - xpos = x; - xchar = xpos & PIM; - - for (i=0; i<nglyph; i++) - { - pci = ppci[i]; - - ppos[i].xpos = xpos; - ppos[i].xchar = xchar; - ppos[i].leftEdge = xpos + pci->metrics.leftSideBearing; - ppos[i].rightEdge = xpos + pci->metrics.rightSideBearing; - ppos[i].topEdge = y - pci->metrics.ascent; - ppos[i].bottomEdge = y + pci->metrics.descent; - ppos[i].pdstBase = pdstBase; - ppos[i].widthGlyph = GLYPHWIDTHBYTESPADDED(pci); - - xpos += pci->metrics.characterWidth; - xchar += pci->metrics.characterWidth; - if (xchar > PLST) - { - xchar &= PIM; - pdstBase++; - } - else if (xchar < 0) - { - xchar += PPW; - pdstBase--; - } - } - - cclip = pGC->pCompositeClip; - pbox = REGION_RECTS(cclip); - nbox = REGION_NUM_RECTS(cclip); - - /* HACK ALERT - since we continue out of the loop below so often, it - is easier to increment pbox at the top than at the end. - don't try this at home. - */ - pbox--; - while(nbox--) - { - pbox++; - clip.x1 = max(bbox.x1, pbox->x1); - clip.y1 = max(bbox.y1, pbox->y1); - clip.x2 = min(bbox.x2, pbox->x2); - clip.y2 = min(bbox.y2, pbox->y2); - if ((clip.x2<=clip.x1) || (clip.y2<=clip.y1)) - continue; - - for(i=0; i<nglyph; i++) - { - pci = ppci[i]; - xchar = ppos[i].xchar; - - /* clip the left and right edges */ - if (ppos[i].leftEdge < clip.x1) - leftEdge = clip.x1; - else - leftEdge = ppos[i].leftEdge; - - if (ppos[i].rightEdge > clip.x2) - rightEdge = clip.x2; - else - rightEdge = ppos[i].rightEdge; - - w = rightEdge - leftEdge; - if (w <= 0) - continue; - - /* clip the top and bottom edges */ - if (ppos[i].topEdge < clip.y1) - topEdge = clip.y1; - else - topEdge = ppos[i].topEdge; - - if (ppos[i].bottomEdge > clip.y2) - bottomEdge = clip.y2; - else - bottomEdge = ppos[i].bottomEdge; - - h = bottomEdge - topEdge; - if (h <= 0) - continue; - - glyphRow = (topEdge - y) + pci->metrics.ascent; - widthGlyph = ppos[i].widthGlyph; - pglyph = FONTGLYPHBITS(pglyphBase, pci); - pglyph += (glyphRow * widthGlyph); - - pdst = ppos[i].pdstBase - ((y-topEdge) * widthDst); - - glyphCol = (leftEdge - ppos[i].xpos) - - (pci->metrics.leftSideBearing); -#if GETLEFTBITS_ALIGNMENT > 1 - getWidth = w + glyphCol; -#endif - xoff = xchar + (leftEdge - ppos[i].xpos); - if (xoff > PLST) - { - xoff &= PIM; - pdst++; - } - else if (xoff < 0) - { - xoff += PPW; - pdst--; - } - - if ((xoff + w) <= PPW) - { - maskpartialbits(xoff, w, startmask); - while (h--) - { - getshiftedleftbits(pglyph, glyphCol, getWidth, tmpSrc); - UPDRW(pdst,(SCRRIGHT(tmpSrc, xoff) & startmask)); - pglyph += widthGlyph; - pdst += widthDst; - } - } - else - { - maskPPWbits(xoff, w, startmask, endmask); - nFirst = PPW - xoff; - while (h--) - { - getshiftedleftbits(pglyph, glyphCol, getWidth, tmpSrc); - UPDRW(pdst,(SCRRIGHT(tmpSrc, xoff) & startmask)); - UPDRW(&(pdst[1]),(SCRLEFT(tmpSrc, nFirst) & endmask)); - pglyph += widthGlyph; - pdst += widthDst; - } - } - } /* for each glyph */ - } /* while nbox-- */ - xfree(ppos); - break; - } - default: - break; - } -} - |