Initial revision

1 files changed, 636 insertions, 0 deletions

diff --git a/hw/xfree86/xf8_32bpp/cfbgcunder.c b/hw/xfree86/xf8_32bpp/cfbgcunder.c
new file mode 100644
index 000000000..d263b8b9e
--- /dev/null
+++ b/hw/xfree86/xf8_32bpp/cfbgcunder.c
@@ -0,0 +1,636 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/xf8_32bpp/cfbgcunder.c,v 1.5 2001/12/14 19:59:52 dawes Exp $ */
+/***********************************************************
+
+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.
+
+******************************************************************/
+#define PSZ 32
+
+#include "X.h"
+#include "Xmd.h"
+#include "Xproto.h"
+#include "cfb.h"
+#include "fontstruct.h"
+#include "dixfontstr.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+#include "region.h"
+
+#include "mistruct.h"
+#include "mibstore.h"
+#include "migc.h"
+#include "mioverlay.h"
+
+#include "cfbmskbits.h"
+#include "cfb8bit.h"
+
+#ifdef WriteBitGroup
+#  define useTEGlyphBlt	cfbImageGlyphBlt8
+#else
+#  define useTEGlyphBlt	cfbTEGlyphBlt
+#endif
+
+#ifdef WriteBitGroup
+# define useImageGlyphBlt	cfbImageGlyphBlt8
+# define usePolyGlyphBlt	cfbPolyGlyphBlt8
+#else
+# define useImageGlyphBlt	miImageGlyphBlt
+# define usePolyGlyphBlt	miPolyGlyphBlt
+#endif
+
+#ifdef FOUR_BIT_CODE
+# define usePushPixels	cfbPushPixels8
+#else
+#ifndef LOWMEMFTPT
+# define usePushPixels	mfbPushPixels
+#else
+# define usePushPixels	miPushPixels
+#endif /* ifndef LOWMEMFTPT */
+#endif
+
+#ifdef PIXEL_ADDR
+# define ZeroPolyArc	cfbZeroPolyArcSS8Copy
+#else
+# define ZeroPolyArc	miZeroPolyArc
+#endif
+
+
+static GCOps cfbTEOps1Rect = {
+    cfbSolidSpansCopy,
+    cfbSetSpans,
+    cfbPutImage,
+    cfbCopyArea,
+    cfbCopyPlane,
+    cfbPolyPoint,
+#ifdef PIXEL_ADDR
+    cfb8LineSS1Rect,
+    cfb8SegmentSS1Rect,
+#else
+    cfbLineSS,
+    cfbSegmentSS,
+#endif
+    miPolyRectangle,
+    ZeroPolyArc,
+    cfbFillPoly1RectCopy,
+    cfbPolyFillRect,
+    cfbPolyFillArcSolidCopy,
+    miPolyText8,
+    miPolyText16,
+    miImageText8,
+    miImageText16,
+    useTEGlyphBlt,
+    usePolyGlyphBlt,
+    usePushPixels
+#ifdef NEED_LINEHELPER
+    ,NULL
+#endif
+};
+
+static GCOps cfbNonTEOps1Rect = {
+    cfbSolidSpansCopy,
+    cfbSetSpans,
+    cfbPutImage,
+    cfbCopyArea,
+    cfbCopyPlane,
+    cfbPolyPoint,
+#ifdef PIXEL_ADDR
+    cfb8LineSS1Rect,
+    cfb8SegmentSS1Rect,
+#else
+    cfbLineSS,
+    cfbSegmentSS,
+#endif
+    miPolyRectangle,
+    ZeroPolyArc,
+    cfbFillPoly1RectCopy,
+    cfbPolyFillRect,
+    cfbPolyFillArcSolidCopy,
+    miPolyText8,
+    miPolyText16,
+    miImageText8,
+    miImageText16,
+    useImageGlyphBlt,
+    usePolyGlyphBlt,
+    usePushPixels
+#ifdef NEED_LINEHELPER
+    ,NULL
+#endif
+};
+
+static GCOps cfbTEOps = {
+    cfbSolidSpansCopy,
+    cfbSetSpans,
+    cfbPutImage,
+    cfbCopyArea,
+    cfbCopyPlane,
+    cfbPolyPoint,
+    cfbLineSS,
+    cfbSegmentSS,
+    miPolyRectangle,
+    ZeroPolyArc,
+    miFillPolygon,
+    cfbPolyFillRect,
+    cfbPolyFillArcSolidCopy,
+    miPolyText8,
+    miPolyText16,
+    miImageText8,
+    miImageText16,
+    useTEGlyphBlt,
+    usePolyGlyphBlt,
+    usePushPixels
+#ifdef NEED_LINEHELPER
+    ,NULL
+#endif
+};
+
+static GCOps cfbNonTEOps = {
+    cfbSolidSpansCopy,
+    cfbSetSpans,
+    cfbPutImage,
+    cfbCopyArea,
+    cfbCopyPlane,
+    cfbPolyPoint,
+    cfbLineSS,
+    cfbSegmentSS,
+    miPolyRectangle,
+#ifdef PIXEL_ADDR
+    cfbZeroPolyArcSS8Copy,
+#else
+    miZeroPolyArc,
+#endif
+    miFillPolygon,
+    cfbPolyFillRect,
+    cfbPolyFillArcSolidCopy,
+    miPolyText8,
+    miPolyText16,
+    miImageText8,
+    miImageText16,
+    useImageGlyphBlt,
+    usePolyGlyphBlt,
+    usePushPixels
+#ifdef NEED_LINEHELPER
+    ,NULL
+#endif
+};
+
+static GCOps *
+cfb32MatchCommon_Underlay (pGC, devPriv)
+    GCPtr	    pGC;
+    cfbPrivGCPtr    devPriv;
+{
+    if (pGC->lineWidth != 0)
+	return 0;
+    if (pGC->lineStyle != LineSolid)
+	return 0;
+    if (pGC->fillStyle != FillSolid)
+	return 0;
+    if (devPriv->rop != GXcopy)
+	return 0;
+    if (pGC->font &&
+	FONTMAXBOUNDS(pGC->font,rightSideBearing) -
+        FONTMINBOUNDS(pGC->font,leftSideBearing) <= 32 &&
+	FONTMINBOUNDS(pGC->font,characterWidth) >= 0)
+    {
+	if (TERMINALFONT(pGC->font)
+#ifdef FOUR_BIT_CODE
+	    && FONTMAXBOUNDS(pGC->font,characterWidth) >= PGSZB
+#endif
+	)
+#ifdef NO_ONE_RECT
+            return &cfbTEOps1Rect;
+#else
+	    if (devPriv->oneRect)
+		return &cfbTEOps1Rect;
+	    else
+		return &cfbTEOps;
+#endif
+	else
+#ifdef NO_ONE_RECT
+	    return &cfbNonTEOps1Rect;
+#else
+	    if (devPriv->oneRect)
+		return &cfbNonTEOps1Rect;
+	    else
+		return &cfbNonTEOps;
+#endif
+    }
+    return 0;
+}
+
+
+void
+cfb32ValidateGC_Underlay(
+    GCPtr  pGC,
+    unsigned long   changes,
+    DrawablePtr	    pDrawable
+){
+    int         mask;		/* stateChanges */
+    int         index;		/* used for stepping through bitfields */
+    int		new_rrop;
+    int         new_line, new_text, new_fillspans, new_fillarea;
+    /* flags for changing the proc vector */
+    cfbPrivGCPtr devPriv;
+    int		oneRect;
+
+    pGC->lastWinOrg.x = pDrawable->x;
+    pGC->lastWinOrg.y = pDrawable->y;
+    devPriv = cfbGetGCPrivate(pGC);
+
+    new_rrop = FALSE;
+    new_line = FALSE;
+    new_text = FALSE;
+    new_fillspans = FALSE;
+    new_fillarea = FALSE;
+
+    /*
+     * 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))
+	)
+    {
+	if(pDrawable->type == DRAWABLE_WINDOW)
+	    miOverlayComputeCompositeClip (pGC, (WindowPtr)pDrawable);
+	else
+	    miComputeCompositeClip (pGC, pDrawable);
+#ifdef NO_ONE_RECT
+	devPriv->oneRect = FALSE;
+#else
+	oneRect = REGION_NUM_RECTS(pGC->pCompositeClip) == 1;
+	if (oneRect != devPriv->oneRect)
+	    new_line = TRUE;
+	devPriv->oneRect = oneRect;
+#endif
+    }
+
+    mask = changes;
+    while (mask) {
+	index = lowbit (mask);
+	mask &= ~index;
+
+	switch (index) {
+	case GCFunction:
+	case GCForeground:
+	    new_rrop = TRUE;
+	    break;
+	case GCPlaneMask:
+	    new_rrop = TRUE;
+	    new_text = TRUE;
+	    break;
+	case GCBackground:
+	    break;
+	case GCLineStyle:
+	case GCLineWidth:
+	    new_line = TRUE;
+	    break;
+	case GCJoinStyle:
+	case GCCapStyle:
+	    break;
+	case GCFillStyle:
+	    new_text = TRUE;
+	    new_fillspans = TRUE;
+	    new_line = TRUE;
+	    new_fillarea = TRUE;
+	    break;
+	case GCFillRule:
+	    break;
+	case GCTile:
+	    new_fillspans = TRUE;
+	    new_fillarea = TRUE;
+	    break;
+	case GCStipple:
+	    new_fillspans = TRUE;
+	    new_fillarea = TRUE;
+	    break;
+	case GCTileStipXOrigin:
+	case GCTileStipYOrigin:
+	    break;
+	case GCFont:
+	    new_text = TRUE;
+	    break;
+	case GCSubwindowMode:
+	case GCGraphicsExposures:
+	case GCClipXOrigin:
+	case GCClipYOrigin:
+	case GCClipMask:
+	case GCDashOffset:
+	case GCDashList:
+	case GCArcMode:
+	default:
+	    break;
+	}
+    }
+
+    /*
+     * If the drawable has changed,  ensure suitable
+     * entries are in the proc vector. 
+     */
+    if (pDrawable->serialNumber != (pGC->serialNumber & (DRAWABLE_SERIAL_BITS)))
+	new_fillspans = TRUE;	/* deal with FillSpans later */
+
+    if (new_rrop)
+    {
+	int old_rrop;
+
+	old_rrop = devPriv->rop;
+	devPriv->rop = cfbReduceRasterOp (pGC->alu, pGC->fgPixel,
+					   pGC->planemask,
+					   &devPriv->and, &devPriv->xor);
+	if (old_rrop == devPriv->rop)
+	    new_rrop = FALSE;
+	else
+	{
+#ifdef PIXEL_ADDR
+	    new_line = TRUE;
+#endif
+#ifdef WriteBitGroup
+	    new_text = TRUE;
+#endif
+	    new_fillspans = TRUE;
+	    new_fillarea = TRUE;
+	}
+    }
+
+    if(!pGC->ops)
+	pGC->ops = & cfbNonTEOps;
+
+
+    if (new_rrop || new_fillspans || new_text || new_fillarea || new_line)
+    {
+	GCOps	*newops;
+
+	if ((newops = cfb32MatchCommon_Underlay (pGC, devPriv)))
+ 	{
+	    if (pGC->ops->devPrivate.val)
+		miDestroyGCOps (pGC->ops);
+	    pGC->ops = newops;
+	    new_rrop = new_line = new_fillspans = new_text = new_fillarea = 0;
+	}
+ 	else
+ 	{
+	    if (!pGC->ops->devPrivate.val)
+	    {
+		pGC->ops = miCreateGCOps (pGC->ops);
+		pGC->ops->devPrivate.val = 1;
+	    }
+	}
+    }
+
+    /* deal with the changes we've collected */
+    if (new_line)
+    {
+	pGC->ops->FillPolygon = miFillPolygon;
+#ifdef NO_ONE_RECT
+	if (pGC->fillStyle == FillSolid)
+	{
+	    switch (devPriv->rop) {
+	    case GXcopy:
+		pGC->ops->FillPolygon = cfbFillPoly1RectCopy;
+		break;
+	    default:
+		pGC->ops->FillPolygon = cfbFillPoly1RectGeneral;
+		break;
+	    }
+	}
+#else
+	if (devPriv->oneRect && pGC->fillStyle == FillSolid)
+	{
+	    switch (devPriv->rop) {
+	    case GXcopy:
+		pGC->ops->FillPolygon = cfbFillPoly1RectCopy;
+		break;
+	    default:
+		pGC->ops->FillPolygon = cfbFillPoly1RectGeneral;
+		break;
+	    }
+	}
+#endif
+	if (pGC->lineWidth == 0)
+	{
+#ifdef PIXEL_ADDR
+	    if ((pGC->lineStyle == LineSolid) && (pGC->fillStyle == FillSolid))
+	    {
+		switch (devPriv->rop)
+		{
+		case GXxor:
+		    pGC->ops->PolyArc = cfbZeroPolyArcSS8Xor;
+		    break;
+		case GXcopy:
+		    pGC->ops->PolyArc = cfbZeroPolyArcSS8Copy;
+		    break;
+		default:
+		    pGC->ops->PolyArc = cfbZeroPolyArcSS8General;
+		    break;
+		}
+	    }
+	    else
+#endif
+		pGC->ops->PolyArc = miZeroPolyArc;
+	}
+	else
+	    pGC->ops->PolyArc = miPolyArc;
+	pGC->ops->PolySegment = miPolySegment;
+	switch (pGC->lineStyle)
+	{
+	case LineSolid:
+	    if(pGC->lineWidth == 0)
+	    {
+		if (pGC->fillStyle == FillSolid)
+		{
+#if defined(PIXEL_ADDR) && !defined(NO_ONE_RECT)
+		    if (devPriv->oneRect &&
+			((pDrawable->x >= pGC->pScreen->width - 32768) &&
+			 (pDrawable->y >= pGC->pScreen->height - 32768)))
+		    {
+			pGC->ops->Polylines = cfb8LineSS1Rect;
+			pGC->ops->PolySegment = cfb8SegmentSS1Rect;
+		    } else
+#endif
+#ifdef NO_ONE_RECT
+		    {
+			pGC->ops->Polylines = cfb8LineSS1Rect;
+			pGC->ops->PolySegment = cfb8SegmentSS1Rect;
+		    }
+#else
+		    {
+		    	pGC->ops->Polylines = cfbLineSS;
+		    	pGC->ops->PolySegment = cfbSegmentSS;
+		    }
+#endif
+		}
+ 		else
+		    pGC->ops->Polylines = miZeroLine;
+	    }
+	    else
+		pGC->ops->Polylines = miWideLine;
+	    break;
+	case LineOnOffDash:
+	case LineDoubleDash:
+	    if (pGC->lineWidth == 0 && pGC->fillStyle == FillSolid)
+	    {
+		pGC->ops->Polylines = cfbLineSD;
+		pGC->ops->PolySegment = cfbSegmentSD;
+	    } else
+		pGC->ops->Polylines = miWideDash;
+	    break;
+	}
+    }
+
+    if (new_text && (pGC->font))
+    {
+        if (FONTMAXBOUNDS(pGC->font,rightSideBearing) -
+            FONTMINBOUNDS(pGC->font,leftSideBearing) > 32 ||
+	    FONTMINBOUNDS(pGC->font,characterWidth) < 0)
+        {
+            pGC->ops->PolyGlyphBlt = miPolyGlyphBlt;
+            pGC->ops->ImageGlyphBlt = miImageGlyphBlt;
+        }
+        else
+        {
+#ifdef WriteBitGroup
+	    if (pGC->fillStyle == FillSolid)
+	    {
+		if (devPriv->rop == GXcopy)
+		    pGC->ops->PolyGlyphBlt = cfbPolyGlyphBlt8;
+		else
+#ifdef FOUR_BIT_CODE
+		    pGC->ops->PolyGlyphBlt = cfbPolyGlyphRop8;
+#else
+		    pGC->ops->PolyGlyphBlt = miPolyGlyphBlt;
+#endif
+	    }
+	    else
+#endif
+		pGC->ops->PolyGlyphBlt = miPolyGlyphBlt;
+            /* special case ImageGlyphBlt for terminal emulator fonts */
+#if !defined(WriteBitGroup) || PSZ == 8
+	    if (TERMINALFONT(pGC->font) &&
+		(pGC->planemask & PMSK) == PMSK
+#ifdef FOUR_BIT_CODE
+		&& FONTMAXBOUNDS(pGC->font,characterWidth) >= PGSZB
+#endif
+		)
+	    {
+		pGC->ops->ImageGlyphBlt = useTEGlyphBlt;
+	    }
+            else
+#endif
+	    {
+#ifdef WriteBitGroup
+		if (devPriv->rop == GXcopy &&
+		    pGC->fillStyle == FillSolid &&
+		    (pGC->planemask & PMSK) == PMSK)
+		    pGC->ops->ImageGlyphBlt = cfbImageGlyphBlt8;
+		else
+#endif
+		    pGC->ops->ImageGlyphBlt = miImageGlyphBlt;
+	    }
+        }
+    }    
+
+
+    if (new_fillspans) {
+	switch (pGC->fillStyle) {
+	case FillSolid:
+	    switch (devPriv->rop) {
+	    case GXcopy:
+		pGC->ops->FillSpans = cfbSolidSpansCopy;
+		break;
+	    case GXxor:
+		pGC->ops->FillSpans = cfbSolidSpansXor;
+		break;
+	    default:
+		pGC->ops->FillSpans = cfbSolidSpansGeneral;
+		break;
+	    }
+	    break;
+	case FillTiled:
+	    pGC->ops->FillSpans = cfbUnnaturalTileFS;
+	    break;
+	case FillStippled:
+	case FillOpaqueStippled:
+	    pGC->ops->FillSpans = cfbUnnaturalStippleFS;
+	    break;
+	default:
+	    FatalError("cfbValidateGC: illegal fillStyle\n");
+	}
+    } /* end of new_fillspans */
+
+    if (new_fillarea) {
+#ifndef FOUR_BIT_CODE
+	pGC->ops->PolyFillRect = miPolyFillRect;
+	if (pGC->fillStyle == FillSolid || pGC->fillStyle == FillTiled)
+	{
+	    pGC->ops->PolyFillRect = cfbPolyFillRect;
+	}
+#endif
+#ifdef FOUR_BIT_CODE
+#ifndef LOWMEMFTPT
+	pGC->ops->PushPixels = mfbPushPixels;
+#else
+	pGC->ops->PushPixels = miPushPixels;
+#endif /* ifndef LOWMEMFTPT */
+	if (pGC->fillStyle == FillSolid && devPriv->rop == GXcopy)
+	    pGC->ops->PushPixels = cfbPushPixels8;
+#endif
+	pGC->ops->PolyFillArc = miPolyFillArc;
+	if (pGC->fillStyle == FillSolid)
+	{
+	    switch (devPriv->rop)
+	    {
+	    case GXcopy:
+		pGC->ops->PolyFillArc = cfbPolyFillArcSolidCopy;
+		break;
+	    default:
+		pGC->ops->PolyFillArc = cfbPolyFillArcSolidGeneral;
+		break;
+	    }
+	}
+    }
+}