Added xorg-server-1.6.2.tar.gz

1 files changed, 0 insertions, 719 deletions

diff --git a/xorg-server/hw/kdrive/src/kaapict.c b/xorg-server/hw/kdrive/src/kaapict.c
deleted file mode 100644
index 501b6b9c4..000000000
--- a/xorg-server/hw/kdrive/src/kaapict.c
+++ /dev/null
@@ -1,719 +0,0 @@
-/*
- * Copyright © 2001 Keith Packard
- *
- * Partly based on code that is Copyright © The XFree86 Project Inc.
- *
- * 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, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Keith Packard makes no
- * representations about the suitability of this software for any purpose.  It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD 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_CONFIG_H
-#include <kdrive-config.h>
-#endif
-#include "kdrive.h"
-#include "kaa.h"
-
-#ifdef RENDER
-#include "mipict.h"
-
-#define KAA_DEBUG_FALLBACKS 0
-
-#if KAA_DEBUG_FALLBACKS
-static void kaaCompositeFallbackPictDesc(PicturePtr pict, char *string, int n)
-{
-    char format[20];
-    char size[20];
-    char loc;
-    int temp;
-
-    if (!pict) {
-	snprintf(string, n, "None");
-	return;
-    }
-
-    switch (pict->format)
-    {
-    case PICT_a8r8g8b8:
-	snprintf(format, 20, "ARGB8888");
-	break;
-    case PICT_r5g6b5:
-	snprintf(format, 20, "RGB565  ");
-	break;
-    case PICT_x1r5g5b5:
-	snprintf(format, 20, "RGB555  ");
-	break;
-    case PICT_a8:
-	snprintf(format, 20, "A8      ");
-	break;
-    case PICT_a1:
-	snprintf(format, 20, "A1      ");
-	break;
-    default:
-	snprintf(format, 20, "0x%x", (int)pict->format);
-	break;
-    }
-
-    loc = kaaGetOffscreenPixmap(pict->pDrawable, &temp, &temp) ? 's' : 'm';
-
-    snprintf(size, 20, "%dx%d%s", pict->pDrawable->width,
-	     pict->pDrawable->height, pict->repeat ?
-	     " R" : "");
-    
-    snprintf(string, n, "0x%lx:%c fmt %s (%s)", (long)pict, loc, format, size);
-}
-
-static void
-kaaPrintCompositeFallback(CARD8 op,
-			  PicturePtr pSrc,
-			  PicturePtr pMask,
-			  PicturePtr pDst)
-{
-    char sop[20];
-    char srcdesc[40], maskdesc[40], dstdesc[40];
-
-    switch(op)
-    {
-    case PictOpSrc:
-	sprintf(sop, "Src");
-	break;
-    case PictOpOver:
-	sprintf(sop, "Over");
-	break;
-    default:
-	sprintf(sop, "0x%x", (int)op);
-	break;
-    }
-    
-    kaaCompositeFallbackPictDesc(pSrc, srcdesc, 40);
-    kaaCompositeFallbackPictDesc(pMask, maskdesc, 40);
-    kaaCompositeFallbackPictDesc(pDst, dstdesc, 40);
-
-    ErrorF("Composite fallback: op %s, \n"
-	   "                    src  %s, \n"
-	   "                    mask %s, \n"
-	   "                    dst  %s, \n", 
-	   sop, srcdesc, maskdesc, dstdesc);
-}
-
-static void
-kaaPrintTrapezoidFallback(PicturePtr pDst)
-{
-    char dstdesc[40];
-
-    kaaCompositeFallbackPictDesc(pDst, dstdesc, 40);
-
-    ErrorF("Trapezoid fallback: dst  %s, %c/%s\n", 
-	   dstdesc,
-	   (pDst->polyMode == PolyModePrecise) ? 'p' : 'i',
-	   (pDst->polyEdge == PolyEdgeSharp) ? "a" : "aa");
-}
-#endif
-
-static Bool
-kaaGetPixelFromRGBA(CARD32	*pixel,
-		    CARD16	red,
-		    CARD16	green,
-		    CARD16	blue,
-		    CARD16	alpha,
-		    CARD32	format)
-{
-    int rbits, bbits, gbits, abits;
-    int rshift, bshift, gshift, ashift;
-
-    *pixel = 0;
-
-    if (!PICT_FORMAT_COLOR(format))
-	return FALSE;
-
-    rbits = PICT_FORMAT_R(format);
-    gbits = PICT_FORMAT_G(format);
-    bbits = PICT_FORMAT_B(format);
-    abits = PICT_FORMAT_A(format);
-
-    if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) {
-	bshift = 0;
-	gshift = bbits;
-	rshift = gshift + gbits;
-	ashift = rshift + rbits;
-    } else {  /* PICT_TYPE_ABGR */
-	rshift = 0;
-	gshift = rbits;
-	bshift = gshift + gbits;
-	ashift = bshift + bbits;
-    }
-
-    *pixel |=  ( blue >> (16 - bbits)) << bshift;
-    *pixel |=  (  red >> (16 - rbits)) << rshift;
-    *pixel |=  (green >> (16 - gbits)) << gshift;
-    *pixel |=  (alpha >> (16 - abits)) << ashift;
-
-    return TRUE;
-}
-
-
-static Bool
-kaaGetRGBAFromPixel(CARD32	pixel,
-		    CARD16	*red,
-		    CARD16	*green,
-		    CARD16	*blue,
-		    CARD16	*alpha,
-		    CARD32	format)
-{
-    int rbits, bbits, gbits, abits;
-    int rshift, bshift, gshift, ashift;
-    
-    if (!PICT_FORMAT_COLOR(format))
-	return FALSE;
-
-    rbits = PICT_FORMAT_R(format);
-    gbits = PICT_FORMAT_G(format);
-    bbits = PICT_FORMAT_B(format);
-    abits = PICT_FORMAT_A(format);
-
-    if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) {
-	bshift = 0;
-	gshift = bbits;
-	rshift = gshift + gbits;
-	ashift = rshift + rbits;
-    } else {  /* PICT_TYPE_ABGR */
-	rshift = 0;
-	gshift = rbits;
-	bshift = gshift + gbits;
-	ashift = bshift + bbits;
-    }
- 
-    *red = ((pixel >> rshift ) & ((1 << rbits) - 1)) << (16 - rbits);
-    while (rbits < 16) {
-	*red |= *red >> rbits;
-	rbits <<= 1;
-    }
-
-    *green = ((pixel >> gshift ) & ((1 << gbits) - 1)) << (16 - gbits);
-    while (gbits < 16) {
-	*green |= *green >> gbits;
-	gbits <<= 1;
-    }
- 
-    *blue = ((pixel >> bshift ) & ((1 << bbits) - 1)) << (16 - bbits);
-    while (bbits < 16) {
-	*blue |= *blue >> bbits;
-	bbits <<= 1;
-    }  
-
-    if (abits) {
-	*alpha = ((pixel >> ashift ) & ((1 << abits) - 1)) << (16 - abits);
-	while (abits < 16) {
-	    *alpha |= *alpha >> abits;
-	    abits <<= 1;
-	}     
-    } else
-	*alpha = 0xffff;
-
-    return TRUE;
-}
-
-static int
-kaaTryDriverSolidFill(PicturePtr	pSrc,
-		      PicturePtr	pDst,
-		      INT16		xSrc,
-		      INT16		ySrc,
-		      INT16		xDst,
-		      INT16		yDst,
-		      CARD16		width,
-		      CARD16		height)
-{
-    KaaScreenPriv (pDst->pDrawable->pScreen);
-    RegionRec region;
-    BoxPtr pbox;
-    int nbox;
-    int dst_off_x, dst_off_y;
-    PixmapPtr pSrcPix, pDstPix;
-    CARD32 pixel;
-    CARD16 red, green, blue, alpha;
-
-    xDst += pDst->pDrawable->x;
-    yDst += pDst->pDrawable->y;
-    xSrc += pSrc->pDrawable->x;
-    ySrc += pSrc->pDrawable->y;
-
-    if (!miComputeCompositeRegion (&region, pSrc, NULL, pDst,
-				   xSrc, ySrc, 0, 0, xDst, yDst,
-				   width, height))
-	return 1;
-
-    if (pSrc->pDrawable->type == DRAWABLE_PIXMAP)
-	kaaPixmapUseMemory ((PixmapPtr) pSrc->pDrawable);
-    if (pDst->pDrawable->type == DRAWABLE_PIXMAP)
-	kaaPixmapUseScreen ((PixmapPtr) pDst->pDrawable);
-
-    pDstPix = kaaGetOffscreenPixmap (pDst->pDrawable, &dst_off_x, &dst_off_y);
-    if (!pDstPix) {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return 0;
-    }
-
-    if (pSrc->pDrawable->type == DRAWABLE_WINDOW)
-	pSrcPix = (*pSrc->pDrawable->pScreen->GetWindowPixmap)(
-	    (WindowPtr) (pSrc->pDrawable));
-    else
-	pSrcPix = (PixmapPtr) (pSrc->pDrawable);
-
-    /* If source is offscreen, we need to sync the accelerator
-     * before accessing it.  We'd prefer for it to be in memory.
-     */
-    if (kaaPixmapIsOffscreen(pSrcPix)) {
-	kaaWaitSync(pDst->pDrawable->pScreen);
-    }
-
-    pixel = *(CARD32 *)(pSrcPix->devPrivate.ptr);
-    if (!kaaGetRGBAFromPixel(pixel, &red, &green, &blue, &alpha,
-			 pSrc->format))
-    {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return -1;
-    }
-    kaaGetPixelFromRGBA(&pixel, red, green, blue, alpha,
-			pDst->format);
-
-    if (!(*pKaaScr->info->PrepareSolid) (pDstPix, GXcopy, 0xffffffff, pixel))
-    {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return -1;
-    }
-
-    nbox = REGION_NUM_RECTS(&region);
-    pbox = REGION_RECTS(&region);
-    while (nbox--)
-    {
-	(*pKaaScr->info->Solid) (pbox->x1 + dst_off_x,
-				 pbox->y1 + dst_off_y,
-				 pbox->x2 + dst_off_x,
-				 pbox->y2 + dst_off_y);
-	pbox++;
-    }
-
-    (*pKaaScr->info->DoneSolid) ();
-    kaaMarkSync (pDst->pDrawable->pScreen);
-    kaaDrawableDirty (pDst->pDrawable);
-
-    REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-    return 1;
-}
-
-static int
-kaaTryDriverBlend(CARD8		op,
-		  PicturePtr	pSrc,
-		  PicturePtr	pDst,
-		  INT16		xSrc,
-		  INT16		ySrc,
-		  INT16		xDst,
-		  INT16		yDst,
-		  CARD16	width,
-		  CARD16	height)
-{
-    KaaScreenPriv (pDst->pDrawable->pScreen);
-    RegionRec region;
-    BoxPtr pbox;
-    int nbox;
-    int src_off_x, src_off_y, dst_off_x, dst_off_y;
-    PixmapPtr pSrcPix, pDstPix;
-    struct _Pixmap srcScratch;
-
-    xDst += pDst->pDrawable->x;
-    yDst += pDst->pDrawable->y;
-
-    xSrc += pSrc->pDrawable->x;
-    ySrc += pSrc->pDrawable->y;
-
-    if (!miComputeCompositeRegion (&region, pSrc, NULL, pDst,
-				   xSrc, ySrc, 0, 0, xDst, yDst,
-				   width, height))
-	return 1;
-
-
-    if (pSrc->pDrawable->type == DRAWABLE_PIXMAP)
-	kaaPixmapUseScreen ((PixmapPtr) pSrc->pDrawable);
-    if (pDst->pDrawable->type == DRAWABLE_PIXMAP)
-	kaaPixmapUseScreen ((PixmapPtr) pDst->pDrawable);
-    
-    pSrcPix = kaaGetOffscreenPixmap (pSrc->pDrawable, &src_off_x, &src_off_y);
-    pDstPix = kaaGetOffscreenPixmap (pDst->pDrawable, &dst_off_x, &dst_off_y);
-
-    if (!pDstPix) {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return 0;
-    }
-
-    if (!pSrcPix && pKaaScr->info->UploadToScratch) {
-	if ((*pKaaScr->info->UploadToScratch) ((PixmapPtr) pSrc->pDrawable,
-					       &srcScratch))
-	    pSrcPix = &srcScratch;
-    }
-
-    if (!pSrcPix) {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return 0;
-    }
-
-    if (!(*pKaaScr->info->PrepareBlend) (op, pSrc, pDst, pSrcPix,
-					 pDstPix))
-    {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return -1;
-    }
-    
-    nbox = REGION_NUM_RECTS(&region);
-    pbox = REGION_RECTS(&region);
-
-    xSrc -= xDst;
-    ySrc -= yDst;
-
-    while (nbox--)
-    {
-	(*pKaaScr->info->Blend) (pbox->x1 + xSrc + src_off_x,
-				 pbox->y1 + ySrc + src_off_y,
-				 pbox->x1 + dst_off_x,
-				 pbox->y1 + dst_off_y,
-				 pbox->x2 - pbox->x1,
-				 pbox->y2 - pbox->y1);
-	pbox++;
-    }
-    
-    (*pKaaScr->info->DoneBlend) ();
-    kaaMarkSync (pDst->pDrawable->pScreen);
-    kaaDrawableDirty (pDst->pDrawable);
-
-    REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-    return 1;
-}
-
-static int
-kaaTryDriverComposite(CARD8		op,
-		      PicturePtr	pSrc,
-		      PicturePtr	pMask,
-		      PicturePtr	pDst,
-		      INT16		xSrc,
-		      INT16		ySrc,
-		      INT16		xMask,
-		      INT16		yMask,
-		      INT16		xDst,
-		      INT16		yDst,
-		      CARD16		width,
-		      CARD16		height)
-{
-    KaaScreenPriv (pDst->pDrawable->pScreen);
-    RegionRec region;
-    BoxPtr pbox;
-    int nbox;
-    int src_off_x, src_off_y, mask_off_x, mask_off_y, dst_off_x, dst_off_y;
-    PixmapPtr pSrcPix, pMaskPix = NULL, pDstPix;
-    struct _Pixmap scratch;
-
-    xDst += pDst->pDrawable->x;
-    yDst += pDst->pDrawable->y;
-
-    if (pMask) {
-	xMask += pMask->pDrawable->x;
-	yMask += pMask->pDrawable->y;
-    }
-
-    xSrc += pSrc->pDrawable->x;
-    ySrc += pSrc->pDrawable->y;
-
-    if (!miComputeCompositeRegion (&region, pSrc, pMask, pDst,
-				   xSrc, ySrc, xMask, yMask, xDst, yDst,
-				   width, height))
-	return 1;
-
-    if (pKaaScr->info->CheckComposite &&
-	!(*pKaaScr->info->CheckComposite) (op, pSrc, pMask, pDst))
-    {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return -1;
-    }
-
-    if (pSrc->pDrawable->type == DRAWABLE_PIXMAP)
-	kaaPixmapUseScreen ((PixmapPtr) pSrc->pDrawable);
-    if (pMask && pMask->pDrawable->type == DRAWABLE_PIXMAP)
-	kaaPixmapUseScreen ((PixmapPtr) pMask->pDrawable);
-    if (pDst->pDrawable->type == DRAWABLE_PIXMAP)
-	kaaPixmapUseScreen ((PixmapPtr) pDst->pDrawable);
-
-    pSrcPix = kaaGetOffscreenPixmap (pSrc->pDrawable, &src_off_x, &src_off_y);
-    if (pMask)
-	pMaskPix = kaaGetOffscreenPixmap (pMask->pDrawable, &mask_off_x,
-					  &mask_off_y);
-    pDstPix = kaaGetOffscreenPixmap (pDst->pDrawable, &dst_off_x, &dst_off_y);
-
-    if (!pDstPix) {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return 0;
-    }
-
-    if (!pSrcPix && (!pMask || pMaskPix) && pKaaScr->info->UploadToScratch) {
-	if (pSrc->pDrawable->type == DRAWABLE_WINDOW)
-	    pSrcPix = (*pSrc->pDrawable->pScreen->GetWindowPixmap) (
-		(WindowPtr) pSrc->pDrawable);
-	else
-	    pSrcPix = (PixmapPtr) pSrc->pDrawable;
-	if ((*pKaaScr->info->UploadToScratch) (pSrcPix, &scratch))
-	    pSrcPix = &scratch;
-    } else if (pSrcPix && pMask && !pMaskPix && pKaaScr->info->UploadToScratch) {
-	if (pMask->pDrawable->type == DRAWABLE_WINDOW)
-	    pMaskPix = (*pMask->pDrawable->pScreen->GetWindowPixmap) (
-		(WindowPtr) pMask->pDrawable);
-	else
-	    pMaskPix = (PixmapPtr) pMask->pDrawable;
-	if ((*pKaaScr->info->UploadToScratch) (pMaskPix, &scratch))
-	    pMaskPix = &scratch;
-    }
-
-    if (!pSrcPix || (pMask && !pMaskPix)) {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return 0;
-    }
-
-    if (!(*pKaaScr->info->PrepareComposite) (op, pSrc, pMask, pDst, pSrcPix,
-					     pMaskPix, pDstPix))
-    {
-	REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-	return -1;
-    }
-
-    nbox = REGION_NUM_RECTS(&region);
-    pbox = REGION_RECTS(&region);
-
-    xMask -= xDst;
-    yMask -= yDst;
-
-    xSrc -= xDst;
-    ySrc -= yDst;
-
-    while (nbox--)
-    {
-	(*pKaaScr->info->Composite) (pbox->x1 + xSrc + src_off_x,
-				     pbox->y1 + ySrc + src_off_y,
-				     pbox->x1 + xMask + mask_off_x,
-				     pbox->y1 + yMask + mask_off_y,
-				     pbox->x1 + dst_off_x,
-				     pbox->y1 + dst_off_y,
-				     pbox->x2 - pbox->x1,
-				     pbox->y2 - pbox->y1);
-	pbox++;
-    }
-
-    (*pKaaScr->info->DoneComposite) ();
-    kaaMarkSync (pDst->pDrawable->pScreen);
-    kaaDrawableDirty (pDst->pDrawable);
-
-    REGION_UNINIT(pDst->pDrawable->pScreen, &region);
-    return 1;
-}
-
-
-void
-kaaComposite(CARD8	op,
-	     PicturePtr pSrc,
-	     PicturePtr pMask,
-	     PicturePtr pDst,
-	     INT16	xSrc,
-	     INT16	ySrc,
-	     INT16	xMask,
-	     INT16	yMask,
-	     INT16	xDst,
-	     INT16	yDst,
-	     CARD16	width,
-	     CARD16	height)
-{
-    KdScreenPriv (pDst->pDrawable->pScreen);
-    KaaScreenPriv (pDst->pDrawable->pScreen);
-    int ret = -1;
-
-    if (!pMask && pSrc->pDrawable)
-    {
-	if (op == PictOpSrc)
-	{
-	    if (pScreenPriv->enabled && pSrc->pDrawable && pSrc->pDrawable->width == 1 &&
-		pSrc->pDrawable->height == 1 && pSrc->repeat)
-	    {
-		ret = kaaTryDriverSolidFill(pSrc, pDst, xSrc, ySrc, xDst, yDst,
-					    width, height);
-		if (ret == 1)
-		    return;
-	    }
-	    else if (!pSrc->repeat && !pSrc->transform &&
-		     pSrc->format == pDst->format)
-	    {
-		RegionRec	region;
-
-		xDst += pDst->pDrawable->x;
-		yDst += pDst->pDrawable->y;
-		xSrc += pSrc->pDrawable->x;
-		ySrc += pSrc->pDrawable->y;
-
-		if (!miComputeCompositeRegion (&region, pSrc, pMask, pDst,
-					       xSrc, ySrc, xMask, yMask, xDst,
-					       yDst, width, height))
-		    return;
-
-
-		kaaCopyNtoN (pSrc->pDrawable, pDst->pDrawable, 0,
-			     REGION_RECTS(&region), REGION_NUM_RECTS(&region),
-			     xSrc - xDst, ySrc - yDst,
-			     FALSE, FALSE, 0, 0);
-		return;
-	    }
-	}
-
-	if (pScreenPriv->enabled && pKaaScr->info->PrepareBlend &&
-	    !pSrc->alphaMap && !pDst->alphaMap)
-	{
-	    ret = kaaTryDriverBlend(op, pSrc, pDst, xSrc, ySrc, xDst, yDst,
-				    width, height);
-	    if (ret == 1)
-		return;
-	}
-    }
-
-    if (pSrc->pDrawable && (!pMask || pMask->pDrawable) &&
-        pScreenPriv->enabled && pKaaScr->info->PrepareComposite &&
-	!pSrc->alphaMap && (!pMask || !pMask->alphaMap) && !pDst->alphaMap)
-    {
-	ret = kaaTryDriverComposite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask,
-				    yMask, xDst, yDst, width, height);
-	if (ret == 1)
-	    return;
-    }
-
-    if (ret != 0) {
-	/* failure to accelerate was not due to pixmaps being in the wrong
-	 * locations.
-	 */
-	if (pSrc->pDrawable->type == DRAWABLE_PIXMAP)
-	    kaaPixmapUseMemory ((PixmapPtr) pSrc->pDrawable);
-	if (pMask && pMask->pDrawable->type == DRAWABLE_PIXMAP)
-	    kaaPixmapUseMemory ((PixmapPtr) pMask->pDrawable);
-	if (pDst->pDrawable->type == DRAWABLE_PIXMAP)
-	    kaaPixmapUseMemory ((PixmapPtr) pDst->pDrawable);
-    }
-
-#if KAA_DEBUG_FALLBACKS
-    kaaPrintCompositeFallback (op, pSrc, pMask, pDst);
-#endif
-
-    KdCheckComposite (op, pSrc, pMask, pDst, xSrc, ySrc, 
-		      xMask, yMask, xDst, yDst, width, height);
-}
-#endif
-
-static xFixed
-miLineFixedX (xLineFixed *l, xFixed y, Bool ceil)
-{
-    xFixed	    dx = l->p2.x - l->p1.x;
-    xFixed_32_32    ex = (xFixed_32_32) (y - l->p1.y) * dx;
-    xFixed	    dy = l->p2.y - l->p1.y;
-    if (ceil)
-	ex += (dy - 1);
-    return l->p1.x + (xFixed) (ex / dy);
-}
-
-/* Need to decide just how much to trim, to maintain translation independence
- * when converted to floating point.
- */
-#define XFIXED_TO_FLOAT(x) (((float)((x) & 0xffffff00)) / 65536.0)
-
-/* This is just to allow us to work on the hardware side of the problem while
- * waiting for cairo to get a new tesselator.  We may not be able to support
- * RasterizeTrapezoid at all due to the abutting edges requirement, but it might
- * be technically legal if we widened the trap by some epsilon, so that alpha
- * values at abutting edges were a little too big and capped at one, rather than
- * a little too small and looked bad.
- */
-void kaaRasterizeTrapezoid(PicturePtr pDst,
-			   xTrapezoid *trap,
-			   int xoff,
-			   int yoff)
-{
-    KdScreenPriv (pDst->pDrawable->pScreen);
-    KaaScreenPriv (pDst->pDrawable->pScreen);
-    KaaTrapezoid ktrap;
-    PixmapPtr pPix;
-    xFixed x1, x2;
-
-    if (!pScreenPriv->enabled ||
-	!pKaaScr->info->PrepareTrapezoids ||
-	pDst->pDrawable->type != DRAWABLE_PIXMAP ||
-        pDst->alphaMap || pDst->format != PICT_a8)
-    {
-	KdCheckRasterizeTrapezoid (pDst, trap, xoff, yoff);
-#if KAA_DEBUG_FALLBACKS
-	kaaPrintTrapezoidFallback (pDst);
-#endif
-	return;
-    }
-    pPix = (PixmapPtr)pDst->pDrawable;
-
-    kaaPixmapUseScreen (pPix);
-
-    if (!kaaPixmapIsOffscreen (pPix) ||
-	!(*pKaaScr->info->PrepareTrapezoids) (pDst, pPix))
-    {
-#if KAA_DEBUG_FALLBACKS
-	kaaPrintTrapezoidFallback (pDst);
-#endif
-	KdCheckRasterizeTrapezoid (pDst, trap, xoff, yoff);
-	return;
-    }
-
-    ktrap.ty = XFIXED_TO_FLOAT(trap->top) + yoff;
-    x1 = miLineFixedX (&trap->left, trap->top, FALSE);
-    x2 = miLineFixedX (&trap->right, trap->top, TRUE);
-    ktrap.tl = XFIXED_TO_FLOAT(x1) + xoff;
-    ktrap.tr = XFIXED_TO_FLOAT(x2) + xoff;
-    ktrap.by = XFIXED_TO_FLOAT(trap->bottom) + yoff;
-    x1 = miLineFixedX (&trap->left, trap->bottom, FALSE);
-    x2 = miLineFixedX (&trap->right, trap->bottom, TRUE);
-    ktrap.bl = XFIXED_TO_FLOAT(x1) + xoff;
-    ktrap.br = XFIXED_TO_FLOAT(x2) + xoff;
-
-    (*pKaaScr->info->Trapezoids) (&ktrap, 1);
-    (*pKaaScr->info->DoneTrapezoids) ();
-}
-
-void
-kaaInitTrapOffsets(int grid_order, float *x_offsets, float *y_offsets,
-		   float x_offset, float y_offset)
-{
-    int i = 0;
-    float x, y, x_count, y_count;
-
-    x_count = (1 << (grid_order / 2)) + 1;
-    y_count = (1 << (grid_order / 2)) - 1;
-
-    x_offset += 1.0 / x_count / 2.0;
-    y_offset += 1.0 / y_count / 2.0;
-
-    for (x = 0; x < x_count; x++) {
-	for (y = 0; y < y_count; y++) {
-	    x_offsets[i] = x / x_count + x_offset;
-	    y_offsets[i] = y / y_count + y_offset;
-	    i++;
-	}
-    }
-}
-