X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2Fmfb%2Fmfbpushpxl.c;fp=Xserver%2Fprograms%2FXserver%2Fmfb%2Fmfbpushpxl.c;h=690c56c3fcfd0b75f562e0753b102b7f82eaecf4;hb=b6e6afccf37f4ad0515ef2a698f714fdf1bf23b3;hp=0000000000000000000000000000000000000000;hpb=e3340a110a3b01756b8e67531395a33b40a17d37;p=rdpsrv

diff --git a/Xserver/programs/Xserver/mfb/mfbpushpxl.c b/Xserver/programs/Xserver/mfb/mfbpushpxl.c
new file mode 100644
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--- /dev/null
+++ b/Xserver/programs/Xserver/mfb/mfbpushpxl.c
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+/***********************************************************
+
+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.
+
+******************************************************************/
+/* $XConsortium: mfbpushpxl.c,v 5.6 94/04/17 20:28:31 dpw Exp $ */
+
+#include "X.h"
+#include "gcstruct.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "miscstruct.h"
+#include "maskbits.h"
+#include "regionstr.h"
+#include "mfb.h"
+
+/*  mfbSolidPP is courtesy of xhacks@csri.toronto.edu
+
+    For fillStyle==FillSolid, a monochrome PushPixels can be reduced to
+    a ROP in the following way:  (Note that the ROP is the same as the
+    result of ROP(src=0x3,dst=0x5))
+
+			src=0011 0000 0011
+			dst=0101 0101 0101
+			rop      fg=0 fg=1
+	GXclear         0x0 0000 0100 0100 0
+	GXand           0x1 0001 0100 0101  s&d
+	GXandReverse    0x2 0010 0100 0110 s&~d
+	GXcopy          0x3 0011 0100 0111 s
+	GXandInverted   0x4 0100 0101 0100 ~s&d
+	GXnoop          0x5 0101 0101 0101 d
+	GXxor           0x6 0110 0101 0110 s^d
+	GXor            0x7 0111 0101 0111 s|d
+	GXnor           0x8 1000 0110 0100 ~s&~d
+	GXequiv         0x9 1001 0110 0101 ~s^d
+	GXinvert        0xa 1010 0110 0110 ~d
+	GXorReverse     0xb 1011 0110 0111 s|~d
+	GXcopyInverted  0xc 1100 0111 0100 ~s
+	GXorInverted    0xd 1101 0111 0101 ~s|d
+	GXnand          0xe 1110 0111 0110 ~s|~d
+	GXset           0xf 1111 0111 0111 1
+
+For src=0: newRop = 0x4|(rop>>2)
+For src=1: newRop = 0x4|(rop&3)
+*/
+
+/* mfbSolidPP -- squeegees the forground color of pGC through pBitMap
+ * into pDrawable.  pBitMap is a stencil (dx by dy of it is used, it may
+ * be bigger) which is placed on the drawable at xOrg, yOrg.  Where a 1 bit
+ * is set in the bitmap, the fill style is put onto the drawable using
+ * the GC's logical function. The drawable is not changed where the bitmap
+ * has a zero bit or outside the area covered by the stencil.
+ */
+void
+mfbSolidPP(pGC, pBitMap, pDrawable, dx, dy, xOrg, yOrg)
+    GCPtr	pGC;
+    PixmapPtr	pBitMap;
+    DrawablePtr pDrawable;
+    int		dx, dy, xOrg, yOrg;
+{
+    unsigned char alu;
+    RegionRec rgnDst;
+    DDXPointPtr pptSrc;
+    BoxRec srcBox;
+    register DDXPointPtr ppt;
+    register BoxPtr pbox;
+    int i;
+
+    if (!pGC->planemask & 1) return;
+
+    /* compute the reduced rop function */
+    alu = pGC->alu;
+    if (!(pGC->fgPixel&1)) alu >>= 2;
+    alu = (alu & 0x3) | 0x4;
+    if (alu == GXnoop) return;
+
+    srcBox.x1 = xOrg;
+    srcBox.y1 = yOrg;
+    srcBox.x2 = xOrg + dx;
+    srcBox.y2 = yOrg + dy;
+    REGION_INIT(pGC->pScreen, &rgnDst, &srcBox, 1);
+
+    /* clip the shape of the dst to the destination composite clip */
+    REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst,
+	((mfbPrivGC *)(pGC->devPrivates[mfbGCPrivateIndex].ptr))->pCompositeClip);
+
+    if (!REGION_NIL(&rgnDst))
+    {
+	i = REGION_NUM_RECTS(&rgnDst);
+	pptSrc = (DDXPointPtr)ALLOCATE_LOCAL(i * sizeof(DDXPointRec));
+        if(pptSrc)
+        {
+	    for (pbox = REGION_RECTS(&rgnDst), ppt = pptSrc;
+		 --i >= 0;
+		 pbox++, ppt++)
+	    {
+		ppt->x = pbox->x1 - xOrg;
+		ppt->y = pbox->y1 - yOrg;
+	    }
+	    mfbDoBitblt((DrawablePtr)pBitMap, pDrawable, alu, &rgnDst, pptSrc);
+	    DEALLOCATE_LOCAL(pptSrc);
+	}
+    }
+    REGION_UNINIT(pGC->pScreen, &rgnDst);
+}
+
+#define NPT 128
+
+/* mfbPushPixels -- squeegees the forground color of pGC through pBitMap
+ * into pDrawable.  pBitMap is a stencil (dx by dy of it is used, it may
+ * be bigger) which is placed on the drawable at xOrg, yOrg.  Where a 1 bit
+ * is set in the bitmap, the fill style is put onto the drawable using
+ * the GC's logical function. The drawable is not changed where the bitmap
+ * has a zero bit or outside the area covered by the stencil.
+ */
+void
+mfbPushPixels(pGC, pBitMap, pDrawable, dx, dy, xOrg, yOrg)
+    GCPtr	pGC;
+    PixmapPtr	pBitMap;
+    DrawablePtr pDrawable;
+    int		dx, dy, xOrg, yOrg;
+{
+    int		h, dxDivPPW, ibEnd;
+    PixelType *pwLineStart;
+    register PixelType	*pw, *pwEnd;
+    register PixelType mask;
+    register int ib;
+    register PixelType w;
+    register int ipt;		/* index into above arrays */
+    Bool 	fInBox;
+    DDXPointRec	pt[NPT];
+    int		width[NPT];
+
+    /* Now scan convert the pixmap and use the result to call fillspans in
+     * in the drawable with the original GC */
+    ipt = 0;
+    dxDivPPW = dx/PPW;
+    for(h = 0; h < dy; h++)
+    {
+
+	pw = (PixelType *)
+	     (((char *)(pBitMap->devPrivate.ptr))+(h * pBitMap->devKind));
+	pwLineStart = pw;
+	/* Process all words which are fully in the pixmap */
+	
+	fInBox = FALSE;
+	pwEnd = pwLineStart + dxDivPPW;
+	while(pw  < pwEnd)
+	{
+	    w = *pw;
+	    mask = endtab[1];
+	    for(ib = 0; ib < PPW; ib++)
+	    {
+		if(w & mask)
+		{
+		    if(!fInBox)
+		    {
+			pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
+			pt[ipt].y = h + yOrg;
+			/* start new box */
+			fInBox = TRUE;
+		    }
+		}
+		else
+		{
+		    if(fInBox)
+		    {
+			width[ipt] = ((pw - pwLineStart) << PWSH) + 
+				     ib + xOrg - pt[ipt].x;
+			if (++ipt >= NPT)
+			{
+			    (*pGC->ops->FillSpans)(pDrawable, pGC, NPT, pt,
+			                      width, TRUE);
+			    ipt = 0;
+			}
+			/* end box */
+			fInBox = FALSE;
+		    }
+		}
+		mask = SCRRIGHT(mask, 1);
+	    }
+	    pw++;
+	}
+	ibEnd = dx & PIM;
+	if(ibEnd)
+	{
+	    /* Process final partial word on line */
+	    w = *pw;
+	    mask = endtab[1];
+	    for(ib = 0; ib < ibEnd; ib++)
+	    {
+		if(w & mask)
+		{
+		    if(!fInBox)
+		    {
+			/* start new box */
+			pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
+			pt[ipt].y = h + yOrg;
+			fInBox = TRUE;
+		    }
+		}
+		else
+		{
+		    if(fInBox)
+		    {
+			/* end box */
+			width[ipt] = ((pw - pwLineStart) << PWSH) + 
+				     ib + xOrg - pt[ipt].x;
+			if (++ipt >= NPT)
+			{
+			    (*pGC->ops->FillSpans)(pDrawable, pGC, NPT, pt,
+			                      width, TRUE);
+			    ipt = 0;
+			}
+			fInBox = FALSE;
+		    }
+		}
+		mask = SCRRIGHT(mask, 1);
+	    }
+	}
+	/* If scanline ended with last bit set, end the box */
+	if(fInBox)
+	{
+	    width[ipt] = dx + xOrg - pt[ipt].x;
+	    if (++ipt >= NPT)
+	    {
+		(*pGC->ops->FillSpans)(pDrawable, pGC, NPT, pt, width, TRUE);
+		ipt = 0;
+	    }
+	}
+    }
+    /* Flush any remaining spans */
+    if (ipt)
+    {
+	(*pGC->ops->FillSpans)(pDrawable, pGC, ipt, pt, width, TRUE);
+    }
+}