/*********************************************************** 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 #endif #include #include #include #include #include "afb.h" #include "dixfontstr.h" #include #include "gcstruct.h" #include "windowstr.h" #include "pixmapstr.h" #include "scrnintstr.h" #include "region.h" #include "mistruct.h" #include "migc.h" #include "maskbits.h" static void afbDestroyGC(GCPtr); static void afbValidateGC(GCPtr, unsigned long, DrawablePtr); static GCFuncs afbFuncs = { afbValidateGC, miChangeGC, miCopyGC, afbDestroyGC, miChangeClip, miDestroyClip, miCopyClip }; static GCOps afbGCOps = { afbSolidFS, afbSetSpans, afbPutImage, afbCopyArea, miCopyPlane, afbPolyPoint, afbLineSS, afbSegmentSS, miPolyRectangle, afbZeroPolyArcSS, afbFillPolygonSolid, afbPolyFillRect, afbPolyFillArcSolid, miPolyText8, miPolyText16, miImageText8, miImageText16, afbTEGlyphBlt, afbPolyGlyphBlt, afbPushPixels }; static void afbReduceOpaqueStipple(PixelType fg, PixelType bg, unsigned long planemask, int depth, unsigned char *rop) { register int d; register Pixel mask = 1; bg ^= fg; for (d = 0; d < depth; d++, mask <<= 1) { if (!(planemask & mask)) rop[d] = RROP_NOP; else if (!(bg & mask)) { /* Both fg and bg have a 0 or 1 in this plane */ if (fg & mask) rop[d] = RROP_WHITE; else rop[d] = RROP_BLACK; } else { /* Both fg and bg have different bits on this plane */ if (fg & mask) rop[d] = RROP_COPY; else rop[d] = RROP_INVERT; } } } Bool afbCreateGC(pGC) register GCPtr pGC; { afbPrivGC *pPriv; pGC->clientClip = NULL; pGC->clientClipType = CT_NONE; /* some of the output primitives aren't really necessary, since they will be filled in ValidateGC because of dix/CreateGC() setting all the change bits. Others are necessary because although they depend on being a monochrome frame buffer, they don't change */ pGC->ops = &afbGCOps; pGC->funcs = &afbFuncs; /* afb wants to translate before scan convesion */ pGC->miTranslate = 1; pPriv = (afbPrivGC *)(pGC->devPrivates[afbGCPrivateIndex].ptr); afbReduceRop(pGC->alu, pGC->fgPixel, pGC->planemask, pGC->depth, pPriv->rrops); afbReduceOpaqueStipple(pGC->fgPixel, pGC->bgPixel, pGC->planemask, pGC->depth, pPriv->rropOS); pGC->fExpose = TRUE; pGC->pRotatedPixmap = NullPixmap; pGC->freeCompClip = FALSE; return TRUE; } static void afbComputeCompositeClip(GCPtr pGC, DrawablePtr pDrawable) { if (pDrawable->type == DRAWABLE_WINDOW) { WindowPtr pWin = (WindowPtr) pDrawable; RegionPtr pregWin; Bool freeTmpClip, freeCompClip; if (pGC->subWindowMode == IncludeInferiors) { pregWin = NotClippedByChildren(pWin); freeTmpClip = TRUE; } else { pregWin = &pWin->clipList; freeTmpClip = FALSE; } freeCompClip = pGC->freeCompClip; /* * if there is no client clip, we can get by with just keeping the * pointer we got, and remembering whether or not should destroy (or * maybe re-use) it later. this way, we avoid unnecessary copying of * regions. (this wins especially if many clients clip by children * and have no client clip.) */ if (pGC->clientClipType == CT_NONE) { if (freeCompClip) REGION_DESTROY(pGC->pScreen, pGC->pCompositeClip); pGC->pCompositeClip = pregWin; pGC->freeCompClip = freeTmpClip; } else { /* * we need one 'real' region to put into the composite clip. if * pregWin the current composite clip are real, we can get rid of * one. if pregWin is real and the current composite clip isn't, * use pregWin for the composite clip. if the current composite * clip is real and pregWin isn't, use the current composite * clip. if neither is real, create a new region. */ REGION_TRANSLATE(pGC->pScreen, pGC->clientClip, pDrawable->x + pGC->clipOrg.x, pDrawable->y + pGC->clipOrg.y); if (freeCompClip) { REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip, pregWin, pGC->clientClip); if (freeTmpClip) REGION_DESTROY(pGC->pScreen, pregWin); } else if (freeTmpClip) { REGION_INTERSECT(pGC->pScreen, pregWin, pregWin, pGC->clientClip); pGC->pCompositeClip = pregWin; } else { pGC->pCompositeClip = REGION_CREATE(pGC->pScreen, NullBox, 0); REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip, pregWin, pGC->clientClip); } pGC->freeCompClip = TRUE; REGION_TRANSLATE(pGC->pScreen, pGC->clientClip, -(pDrawable->x + pGC->clipOrg.x), -(pDrawable->y + pGC->clipOrg.y)); } } /* end of composite clip for a window */ else { BoxRec pixbounds; /* XXX should we translate by drawable.x/y here ? */ pixbounds.x1 = 0; pixbounds.y1 = 0; pixbounds.x2 = pDrawable->width; pixbounds.y2 = pDrawable->height; if (pGC->freeCompClip) { REGION_RESET(pGC->pScreen, pGC->pCompositeClip, &pixbounds); } else { pGC->freeCompClip = TRUE; pGC->pCompositeClip = REGION_CREATE(pGC->pScreen, &pixbounds, 1); } if (pGC->clientClipType == CT_REGION) { REGION_TRANSLATE(pGC->pScreen, pGC->pCompositeClip, -pGC->clipOrg.x, -pGC->clipOrg.y); REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip, pGC->pCompositeClip, pGC->clientClip); REGION_TRANSLATE(pGC->pScreen, pGC->pCompositeClip, pGC->clipOrg.x, pGC->clipOrg.y); } } /* end of composite clip for pixmap */ } /* end afbComputeCompositeClip */ /* Clipping conventions if the drawable is a window CT_REGION ==> pCompositeClip really is the composite CT_other ==> pCompositeClip is the window clip region if the drawable is a pixmap CT_REGION ==> pCompositeClip is the translated client region clipped to the pixmap boundary CT_other ==> pCompositeClip is the pixmap bounding box */ /*ARGSUSED*/ static void afbValidateGC(pGC, changes, pDrawable) register GCPtr pGC; unsigned long changes; DrawablePtr pDrawable; { register afbPrivGCPtr devPriv; int mask; /* stateChanges */ int index; /* used for stepping through bitfields */ int xrot, yrot; /* rotations for tile and stipple pattern */ /* flags for changing the proc vector and updating things in devPriv */ int new_rotate, new_rrop, new_line, new_text, new_fill; DDXPointRec oldOrg; /* origin of thing GC was last used with */ oldOrg = pGC->lastWinOrg; pGC->lastWinOrg.x = pDrawable->x; pGC->lastWinOrg.y = pDrawable->y; /* we need to re-rotate the tile if the previous window/pixmap origin (oldOrg) differs from the new window/pixmap origin (pGC->lastWinOrg) */ new_rotate = (oldOrg.x != pGC->lastWinOrg.x) || (oldOrg.y != pGC->lastWinOrg.y); devPriv = ((afbPrivGCPtr)(pGC->devPrivates[afbGCPrivateIndex].ptr)); /* if the client clip is different or moved OR the subwindowMode has changed OR the window's clip has changed since the last validation we need to recompute the composite clip */ if ((changes & (GCClipXOrigin|GCClipYOrigin|GCClipMask|GCSubwindowMode)) || (pDrawable->serialNumber != (pGC->serialNumber & DRAWABLE_SERIAL_BITS))) afbComputeCompositeClip(pGC, pDrawable); new_rrop = FALSE; new_line = FALSE; new_text = FALSE; new_fill = FALSE; mask = changes; while (mask) { index = lowbit(mask); mask &= ~index; /* this switch acculmulates a list of which procedures might have to change due to changes in the GC. in some cases (e.g. changing one 16 bit tile for another) we might not really need a change, but the code is being paranoid. this sort of batching wins if, for example, the alu and the font have been changed, or any other pair of items that both change the same thing. */ switch (index) { case GCPlaneMask: case GCFunction: case GCForeground: new_rrop = TRUE; break; case GCBackground: new_rrop = TRUE; /* for opaque stipples */ break; case GCLineStyle: case GCLineWidth: case GCJoinStyle: new_line = TRUE; break; case GCCapStyle: break; case GCFillStyle: new_fill = TRUE; break; case GCFillRule: break; case GCTile: if(pGC->tileIsPixel) break; new_rotate = TRUE; new_fill = TRUE; break; case GCStipple: if(pGC->stipple == (PixmapPtr)NULL) break; new_rotate = TRUE; new_fill = TRUE; break; case GCTileStipXOrigin: new_rotate = TRUE; break; case GCTileStipYOrigin: new_rotate = TRUE; break; case GCFont: new_text = TRUE; break; case GCSubwindowMode: break; case GCGraphicsExposures: break; case GCClipXOrigin: break; case GCClipYOrigin: break; case GCClipMask: break; case GCDashOffset: break; case GCDashList: break; case GCArcMode: break; default: break; } } /* deal with the changes we've collected . new_rrop must be done first because subsequent things depend on it. */ if(new_rotate || new_fill) { Bool new_pix = FALSE; /* figure out how much to rotate */ xrot = pGC->patOrg.x; yrot = pGC->patOrg.y; xrot += pDrawable->x; yrot += pDrawable->y; switch (pGC->fillStyle) { case FillTiled: /* copy current tile and stipple */ if (!pGC->tileIsPixel && (pGC->tile.pixmap->drawable.width <= PPW) && !(pGC->tile.pixmap->drawable.width & (pGC->tile.pixmap->drawable.width - 1))) { afbCopyRotatePixmap(pGC->tile.pixmap, &pGC->pRotatedPixmap, xrot, yrot); new_pix = TRUE; } break; case FillStippled: case FillOpaqueStippled: if (pGC->stipple && (pGC->stipple->drawable.width <= PPW) && !(pGC->stipple->drawable.width & (pGC->stipple->drawable.width - 1))) { afbCopyRotatePixmap(pGC->stipple, &pGC->pRotatedPixmap, xrot, yrot); new_pix = TRUE; } } /* destroy any previously rotated tile or stipple */ if (!new_pix && pGC->pRotatedPixmap) { (*pDrawable->pScreen->DestroyPixmap)(pGC->pRotatedPixmap); pGC->pRotatedPixmap = (PixmapPtr)NULL; } } /* * duck out here when the GC is unchanged */ if (!changes) return; if (new_rrop || new_fill) { afbReduceRop(pGC->alu, pGC->fgPixel, pGC->planemask, pDrawable->depth, devPriv->rrops); afbReduceOpaqueStipple(pGC->fgPixel, pGC->bgPixel, pGC->planemask, pGC->depth, devPriv->rropOS); new_fill = TRUE; } if (new_line || new_fill || new_text) { if (!pGC->ops->devPrivate.val) { pGC->ops = miCreateGCOps(pGC->ops); pGC->ops->devPrivate.val = 1; } } if (new_line || new_fill) { if (pGC->lineWidth == 0) { if (pGC->lineStyle == LineSolid && pGC->fillStyle == FillSolid) pGC->ops->PolyArc = afbZeroPolyArcSS; else pGC->ops->PolyArc = miZeroPolyArc; } else pGC->ops->PolyArc = miPolyArc; if (pGC->lineStyle == LineSolid) { if(pGC->lineWidth == 0) { if (pGC->fillStyle == FillSolid) { pGC->ops->PolySegment = afbSegmentSS; pGC->ops->Polylines = afbLineSS; } else { pGC->ops->PolySegment = miPolySegment; pGC->ops->Polylines = miZeroLine; } } else { pGC->ops->PolySegment = miPolySegment; pGC->ops->Polylines = miWideLine; } } else { if(pGC->lineWidth == 0 && pGC->fillStyle == FillSolid) { pGC->ops->PolySegment = afbSegmentSD; pGC->ops->Polylines = afbLineSD; } else { pGC->ops->PolySegment = miPolySegment; pGC->ops->Polylines = miWideDash; } } } if (new_text || new_fill) { if ((pGC->font) && (FONTMAXBOUNDS(pGC->font,rightSideBearing) - FONTMINBOUNDS(pGC->font,leftSideBearing) > 32 || FONTMINBOUNDS(pGC->font,characterWidth) < 0)) { pGC->ops->PolyGlyphBlt = miPolyGlyphBlt; pGC->ops->ImageGlyphBlt = miImageGlyphBlt; } else { /* special case ImageGlyphBlt for terminal emulator fonts */ if ((pGC->font) && TERMINALFONT(pGC->font)) { pGC->ops->ImageGlyphBlt = afbTEGlyphBlt; } else { pGC->ops->ImageGlyphBlt = afbImageGlyphBlt; } /* now do PolyGlyphBlt */ if (pGC->fillStyle == FillSolid) { pGC->ops->PolyGlyphBlt = afbPolyGlyphBlt; } else { pGC->ops->PolyGlyphBlt = miPolyGlyphBlt; } } } if (new_fill) { /* install a suitable fillspans and pushpixels */ pGC->ops->PushPixels = afbPushPixels; pGC->ops->FillPolygon = miFillPolygon; pGC->ops->PolyFillArc = miPolyFillArc; switch (pGC->fillStyle) { case FillSolid: pGC->ops->FillSpans = afbSolidFS; pGC->ops->FillPolygon = afbFillPolygonSolid; pGC->ops->PolyFillArc = afbPolyFillArcSolid; break; case FillTiled: if (pGC->pRotatedPixmap) pGC->ops->FillSpans = afbTileFS; else pGC->ops->FillSpans = afbUnnaturalTileFS; break; case FillOpaqueStippled: if (pGC->pRotatedPixmap) pGC->ops->FillSpans = afbOpaqueStippleFS; else pGC->ops->FillSpans = afbUnnaturalOpaqueStippleFS; break; case FillStippled: if (pGC->pRotatedPixmap) pGC->ops->FillSpans = afbStippleFS; else pGC->ops->FillSpans = afbUnnaturalStippleFS; break; } } /* end of new_fill */ } static void afbDestroyGC(pGC) GCPtr pGC; { if (pGC->pRotatedPixmap) (*pGC->pScreen->DestroyPixmap)(pGC->pRotatedPixmap); if (pGC->freeCompClip) REGION_DESTROY(pGC->pScreen, pGC->pCompositeClip); miDestroyGCOps(pGC->ops); } void afbReduceRop(alu, src, planemask, depth, rop) register int alu; register Pixel src; register unsigned long planemask; int depth; register unsigned char *rop; { register int d; register Pixel mask = 1; for (d = 0; d < depth; d++, mask <<= 1) { if (!(planemask & mask)) rop[d] = RROP_NOP; else if ((src & mask) == 0) /* src is black */ switch (alu) { case GXclear: rop[d] = RROP_BLACK; break; case GXand: rop[d] = RROP_BLACK; break; case GXandReverse: rop[d] = RROP_BLACK; break; case GXcopy: rop[d] = RROP_BLACK; break; case GXandInverted: rop[d] = RROP_NOP; break; case GXnoop: rop[d] = RROP_NOP; break; case GXxor: rop[d] = RROP_NOP; break; case GXor: rop[d] = RROP_NOP; break; case GXnor: rop[d] = RROP_INVERT; break; case GXequiv: rop[d] = RROP_INVERT; break; case GXinvert: rop[d] = RROP_INVERT; break; case GXorReverse: rop[d] = RROP_INVERT; break; case GXcopyInverted: rop[d] = RROP_WHITE; break; case GXorInverted: rop[d] = RROP_WHITE; break; case GXnand: rop[d] = RROP_WHITE; break; case GXset: rop[d] = RROP_WHITE; break; } else /* src is white */ switch (alu) { case GXclear: rop[d] = RROP_BLACK; break; case GXand: rop[d] = RROP_NOP; break; case GXandReverse: rop[d] = RROP_INVERT; break; case GXcopy: rop[d] = RROP_WHITE; break; case GXandInverted: rop[d] = RROP_BLACK; break; case GXnoop: rop[d] = RROP_NOP; break; case GXxor: rop[d] = RROP_INVERT; break; case GXor: rop[d] = RROP_WHITE; break; case GXnor: rop[d] = RROP_BLACK; break; case GXequiv: rop[d] = RROP_NOP; break; case GXinvert: rop[d] = RROP_INVERT; break; case GXorReverse: rop[d] = RROP_WHITE; break; case GXcopyInverted: rop[d] = RROP_BLACK; break; case GXorInverted: rop[d] = RROP_NOP; break; case GXnand: rop[d] = RROP_INVERT; break; case GXset: rop[d] = RROP_WHITE; break; } } }