Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 388 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/iplan2p4/iplbitblt.c b/nx-X11/programs/Xserver/iplan2p4/iplbitblt.c
new file mode 100644
index 000000000..4bf64437e
--- /dev/null
+++ b/nx-X11/programs/Xserver/iplan2p4/iplbitblt.c
@@ -0,0 +1,388 @@
+/* $XFree86: xc/programs/Xserver/iplan2p4/iplbitblt.c,v 3.1tsi Exp $ */
+/*
+ * ipl copy area
+ */
+
+/*
+
+Copyright (c) 1989  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.
+
+Author: Keith Packard
+
+*/
+/* $XConsortium: iplbitblt.c,v 5.51 94/05/27 11:00:56 dpw Exp $ */
+
+/* Modified nov 94 by Martin Schaller (Martin_Schaller@maus.r.de) for use with
+interleaved planes */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include	<X11/X.h>
+#include	<X11/Xmd.h>
+#include	<X11/Xproto.h>
+#include	"gcstruct.h"
+#include	"windowstr.h"
+#include	"scrnintstr.h"
+#include	"pixmapstr.h"
+#include	"regionstr.h"
+#include	"ipl.h"
+#include	"fastblt.h"
+#define MFB_CONSTS_ONLY
+#include	"maskbits.h"
+
+#include 	"iplmskbits.h"
+
+RegionPtr
+iplBitBlt (pSrcDrawable, pDstDrawable,
+            pGC, srcx, srcy, width, height, dstx, dsty, doBitBlt, bitPlane)
+    register DrawablePtr pSrcDrawable;
+    register DrawablePtr pDstDrawable;
+    GC *pGC;
+    int srcx, srcy;
+    int width, height;
+    int dstx, dsty;
+    void (*doBitBlt)();
+    unsigned long bitPlane;
+{
+    RegionPtr prgnSrcClip;	/* may be a new region, or just a copy */
+    Bool freeSrcClip = FALSE;
+
+    RegionPtr prgnExposed;
+    RegionRec rgnDst;
+    DDXPointPtr pptSrc;
+    register DDXPointPtr ppt;
+    register BoxPtr pbox;
+    int i;
+    register int dx;
+    register int dy;
+    xRectangle origSource;
+    DDXPointRec origDest;
+    int numRects;
+    BoxRec fastBox;
+    int fastClip = 0;		/* for fast clipping with pixmap source */
+    int fastExpose = 0;		/* for fast exposures with pixmap source */
+
+    origSource.x = srcx;
+    origSource.y = srcy;
+    origSource.width = width;
+    origSource.height = height;
+    origDest.x = dstx;
+    origDest.y = dsty;
+
+    if ((pSrcDrawable != pDstDrawable) &&
+	pSrcDrawable->pScreen->SourceValidate)
+    {
+	(*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, srcx, srcy, width, height);
+    }
+
+    srcx += pSrcDrawable->x;
+    srcy += pSrcDrawable->y;
+
+    /* clip the source */
+
+    if (pSrcDrawable->type == DRAWABLE_PIXMAP)
+    {
+	if ((pSrcDrawable == pDstDrawable) &&
+	    (pGC->clientClipType == CT_NONE))
+	{
+	    prgnSrcClip = iplGetCompositeClip(pGC);
+	}
+	else
+	{
+	    fastClip = 1;
+	}
+    }
+    else
+    {
+	if (pGC->subWindowMode == IncludeInferiors)
+	{
+	    if (!((WindowPtr) pSrcDrawable)->parent)
+	    {
+		/*
+		 * special case bitblt from root window in
+		 * IncludeInferiors mode; just like from a pixmap
+		 */
+		fastClip = 1;
+	    }
+	    else if ((pSrcDrawable == pDstDrawable) &&
+		(pGC->clientClipType == CT_NONE))
+	    {
+		prgnSrcClip = iplGetCompositeClip(pGC);
+	    }
+	    else
+	    {
+		prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable);
+		freeSrcClip = TRUE;
+	    }
+	}
+	else
+	{
+	    prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;
+	}
+    }
+
+    fastBox.x1 = srcx;
+    fastBox.y1 = srcy;
+    fastBox.x2 = srcx + width;
+    fastBox.y2 = srcy + height;
+
+    /* Don't create a source region if we are doing a fast clip */
+    if (fastClip)
+    {
+	fastExpose = 1;
+	/*
+	 * clip the source; if regions extend beyond the source size,
+ 	 * make sure exposure events get sent
+	 */
+	if (fastBox.x1 < pSrcDrawable->x)
+	{
+	    fastBox.x1 = pSrcDrawable->x;
+	    fastExpose = 0;
+	}
+	if (fastBox.y1 < pSrcDrawable->y)
+	{
+	    fastBox.y1 = pSrcDrawable->y;
+	    fastExpose = 0;
+	}
+	if (fastBox.x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
+	{
+	    fastBox.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
+	    fastExpose = 0;
+	}
+	if (fastBox.y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
+	{
+	    fastBox.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
+	    fastExpose = 0;
+	}
+    }
+    else
+    {
+	REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
+	REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);
+    }
+
+    dstx += pDstDrawable->x;
+    dsty += pDstDrawable->y;
+
+    if (pDstDrawable->type == DRAWABLE_WINDOW)
+    {
+	if (!((WindowPtr)pDstDrawable)->realized)
+	{
+	    if (!fastClip)
+		REGION_UNINIT(pGC->pScreen, &rgnDst);
+	    if (freeSrcClip)
+		REGION_DESTROY(pGC->pScreen, prgnSrcClip);
+	    return NULL;
+	}
+    }
+
+    dx = srcx - dstx;
+    dy = srcy - dsty;
+
+    /* Translate and clip the dst to the destination composite clip */
+    if (fastClip)
+    {
+	RegionPtr cclip;
+
+        /* Translate the region directly */
+        fastBox.x1 -= dx;
+        fastBox.x2 -= dx;
+        fastBox.y1 -= dy;
+        fastBox.y2 -= dy;
+
+	/* If the destination composite clip is one rectangle we can
+	   do the clip directly.  Otherwise we have to create a full
+	   blown region and call intersect */
+
+	/* XXX because CopyPlane uses this routine for 8-to-1 bit
+	 * copies, this next line *must* also correctly fetch the
+	 * composite clip from an mfb gc
+	 */
+
+	cclip = iplGetCompositeClip(pGC);
+        if (REGION_NUM_RECTS(cclip) == 1)
+        {
+	    BoxPtr pBox = REGION_RECTS(cclip);
+
+	    if (fastBox.x1 < pBox->x1) fastBox.x1 = pBox->x1;
+	    if (fastBox.x2 > pBox->x2) fastBox.x2 = pBox->x2;
+	    if (fastBox.y1 < pBox->y1) fastBox.y1 = pBox->y1;
+	    if (fastBox.y2 > pBox->y2) fastBox.y2 = pBox->y2;
+
+	    /* Check to see if the region is empty */
+	    if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2)
+	    {
+		REGION_NULL(pGC->pScreen, &rgnDst);
+	    }
+	    else
+	    {
+		REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
+	    }
+	}
+        else
+	{
+	    /* We must turn off fastClip now, since we must create
+	       a full blown region.  It is intersected with the
+	       composite clip below. */
+	    fastClip = 0;
+	    REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
+	}
+    }
+    else
+    {
+        REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);
+    }
+
+    if (!fastClip)
+    {
+	REGION_INTERSECT(pGC->pScreen, &rgnDst,
+				   &rgnDst,
+				   iplGetCompositeClip(pGC));
+    }
+
+    /* Do bit blitting */
+    numRects = REGION_NUM_RECTS(&rgnDst);
+    if (numRects && width && height)
+    {
+	if(!(pptSrc = (DDXPointPtr)ALLOCATE_LOCAL(numRects *
+						  sizeof(DDXPointRec))))
+	{
+	    REGION_UNINIT(pGC->pScreen, &rgnDst);
+	    if (freeSrcClip)
+		REGION_DESTROY(pGC->pScreen, prgnSrcClip);
+	    return NULL;
+	}
+	pbox = REGION_RECTS(&rgnDst);
+	ppt = pptSrc;
+	for (i = numRects; --i >= 0; pbox++, ppt++)
+	{
+	    ppt->x = pbox->x1 + dx;
+	    ppt->y = pbox->y1 + dy;
+	}
+
+	(*doBitBlt) (pSrcDrawable, pDstDrawable, pGC->alu, &rgnDst, pptSrc, pGC->planemask, bitPlane);
+	DEALLOCATE_LOCAL(pptSrc);
+    }
+
+    prgnExposed = NULL;
+    if (pGC->fExpose)
+    {
+	extern RegionPtr    miHandleExposures();
+
+        /* Pixmap sources generate a NoExposed (we return NULL to do this) */
+        if (!fastExpose)
+	    prgnExposed =
+		miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
+				  origSource.x, origSource.y,
+				  (int)origSource.width,
+				  (int)origSource.height,
+				  origDest.x, origDest.y, bitPlane);
+    }
+    REGION_UNINIT(pGC->pScreen, &rgnDst);
+    if (freeSrcClip)
+	REGION_DESTROY(pGC->pScreen, prgnSrcClip);
+    return prgnExposed;
+}
+
+
+void
+iplDoBitblt (pSrc, pDst, alu, prgnDst, pptSrc, planemask)
+    DrawablePtr	    pSrc, pDst;
+    int		    alu;
+    RegionPtr	    prgnDst;
+    DDXPointPtr	    pptSrc;
+    unsigned long   planemask;
+{
+    void (*blt)() = iplDoBitbltGeneral;
+    if ((planemask & INTER_PMSK) == INTER_PMSK) {
+	switch (alu) {
+	case GXcopy:
+	    blt = iplDoBitbltCopy;
+	    break;
+	case GXxor:
+	    blt = iplDoBitbltXor;
+	    break;
+	case GXor:
+	    blt = iplDoBitbltOr;
+	    break;
+	}
+    }
+    (*blt) (pSrc, pDst, alu, prgnDst, pptSrc, planemask);
+}
+
+RegionPtr
+iplCopyArea(pSrcDrawable, pDstDrawable,
+            pGC, srcx, srcy, width, height, dstx, dsty)
+    register DrawablePtr pSrcDrawable;
+    register DrawablePtr pDstDrawable;
+    GC *pGC;
+    int srcx, srcy;
+    int width, height;
+    int dstx, dsty;
+{
+    void (*doBitBlt) ();
+    
+    doBitBlt = iplDoBitbltCopy;
+    if (pGC->alu != GXcopy || (pGC->planemask & INTER_PMSK) != INTER_PMSK)
+    {
+	doBitBlt = iplDoBitbltGeneral;
+	if ((pGC->planemask & INTER_PMSK) == INTER_PMSK)
+	{
+	    switch (pGC->alu) {
+	    case GXxor:
+		doBitBlt = iplDoBitbltXor;
+		break;
+	    case GXor:
+		doBitBlt = iplDoBitbltOr;
+		break;
+	    }
+	}
+    }
+    return iplBitBlt (pSrcDrawable, pDstDrawable,
+            pGC, srcx, srcy, width, height, dstx, dsty, doBitBlt, 0L);
+}
+
+/* shared among all different ipl depths through linker magic */
+RegionPtr   (*iplPuntCopyPlane)();
+
+RegionPtr iplCopyPlane(pSrcDrawable, pDstDrawable,
+	    pGC, srcx, srcy, width, height, dstx, dsty, bitPlane)
+    DrawablePtr 	pSrcDrawable;
+    DrawablePtr		pDstDrawable;
+    GCPtr		pGC;
+    int 		srcx, srcy;
+    int 		width, height;
+    int 		dstx, dsty;
+    unsigned long	bitPlane;
+{
+    RegionPtr	ret;
+    extern RegionPtr    miHandleExposures();
+    void		(*doBitBlt)();
+
+    ret = (*iplPuntCopyPlane) (pSrcDrawable, pDstDrawable,
+	    pGC, srcx, srcy, width, height, dstx, dsty, bitPlane);
+    return ret;
+}