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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/. */
/* */
/* NXAGENT, NX protocol compression and NX extensions to this software */
/* are copyright of NoMachine. Redistribution and use of the present */
/* software is allowed according to terms specified in the file LICENSE */
/* which comes in the source distribution. */
/* */
/* Check http://www.nomachine.com/licensing.html for applicability. */
/* */
/* NX and NoMachine are trademarks of Medialogic S.p.A. */
/* */
/* All rights reserved. */
/* */
/**************************************************************************/
/*
* $XFree86: xc/programs/Xserver/render/mitrap.c,v 1.8 2002/09/03 19:28:28 keithp Exp $
*
* Copyright © 2002 Keith Packard, member of 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.
*/
#include "Render.h"
#include "../../render/mitrap.c"
void
miTrapezoids (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntrap,
xTrapezoid *traps)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
PictureScreenPtr ps = GetPictureScreen(pScreen);
/*
* Check for solid alpha add
*/
if (op == PictOpAdd && miIsSolidAlpha (pSrc))
{
for (; ntrap; ntrap--, traps++)
(*ps->RasterizeTrapezoid) (pDst, traps, 0, 0);
}
else if (maskFormat)
{
PicturePtr pPicture;
BoxRec bounds;
INT16 xDst, yDst;
INT16 xRel, yRel;
xDst = traps[0].left.p1.x >> 16;
yDst = traps[0].left.p1.y >> 16;
if (nxagentTrapezoidExtents != NullBox)
{
memcpy(&bounds, nxagentTrapezoidExtents, sizeof(BoxRec));
}
else
{
nxagentTrapezoidExtents = (BoxPtr) malloc(sizeof(BoxRec));
miTrapezoidBounds (ntrap, traps, &bounds);
memcpy(nxagentTrapezoidExtents, &bounds, sizeof(BoxRec));
}
if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
return;
pPicture = miCreateAlphaPicture (pScreen, pDst, maskFormat,
bounds.x2 - bounds.x1,
bounds.y2 - bounds.y1);
if (!pPicture)
return;
for (; ntrap; ntrap--, traps++)
(*ps->RasterizeTrapezoid) (pPicture, traps,
-bounds.x1, -bounds.y1);
xRel = bounds.x1 + xSrc - xDst;
yRel = bounds.y1 + ySrc - yDst;
CompositePicture (op, pSrc, pPicture, pDst,
xRel, yRel, 0, 0, bounds.x1, bounds.y1,
bounds.x2 - bounds.x1,
bounds.y2 - bounds.y1);
FreePicture (pPicture, 0);
}
else
{
if (pDst->polyEdge == PolyEdgeSharp)
maskFormat = PictureMatchFormat (pScreen, 1, PICT_a1);
else
maskFormat = PictureMatchFormat (pScreen, 8, PICT_a8);
for (; ntrap; ntrap--, traps++)
miTrapezoids (op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, traps);
}
}
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