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/*
* $XFree86: xc/programs/Xserver/miext/layer/layergc.c,v 1.5 2001/10/28 03:34:15 tsi Exp $
*
* Copyright © 2001 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 "layerstr.h"
GCFuncs layerGCFuncs = {
layerValidateGC, layerChangeGC, layerCopyGC, layerDestroyGC,
layerChangeClip, layerDestroyClip, layerCopyClip
};
#if 0
/*
* XXX dont need this until this supports
* separate clipping and multiple layers
*/
GCOps layerGCOps = {
layerFillSpans, layerSetSpans,
layerPutImage, layerCopyArea,
layerCopyPlane, layerPolyPoint,
layerPolylines, layerPolySegment,
layerPolyRectangle, layerPolyArc,
layerFillPolygon, layerPolyFillRect,
layerPolyFillArc, layerPolyText8,
layerPolyText16, layerImageText8,
layerImageText16, layerImageGlyphBlt,
layerPolyGlyphBlt, layerPushPixels,
#ifdef NEED_LINEHELPER
NULL,
#endif
{NULL} /* devPrivate */
};
#endif
Bool
layerCreateGC (GCPtr pGC)
{
Bool ret = TRUE;
LayerKindPtr pLayKind;
ScreenPtr pScreen = pGC->pScreen;
layerScrPriv(pScreen);
layerGCPriv(pGC);
/*
* XXX assume the first layer can handle all GCs
*/
pLayKind = &pLayScr->kinds[0];
if (pLayScr->pLayers)
pLayKind = pLayScr->pLayers->pKind;
pLayGC->pKind = pLayKind;
LayerUnwrap (pScreen,pLayGC->pKind,CreateGC);
if (!(*pScreen->CreateGC) (pGC))
ret = FALSE;
LayerWrap (pScreen,pLayKind,CreateGC,layerCreateGC);
LayerWrap (pGC,pLayGC,funcs,&layerGCFuncs);
return ret;
}
void
layerValidateGC(GCPtr pGC,
unsigned long changes,
DrawablePtr pDraw)
{
layerGCPriv(pGC);
LayerKindPtr pKind;
if (pDraw->type == DRAWABLE_WINDOW)
{
layerWinPriv ((WindowPtr) pDraw);
pKind = layerWinLayer (pLayWin)->pKind;
}
else
{
/* XXX assume the first layer can handle all pixmaps */
layerScrPriv (pDraw->pScreen);
pKind = &pLayScr->kinds[0];
if (pLayScr->pLayers)
pKind = pLayScr->pLayers->pKind;
}
LayerUnwrap (pGC,pLayGC,funcs);
if (pKind != pLayGC->pKind)
{
/*
* Clean up the previous user
*/
CreateGCProcPtr CreateGC;
(*pGC->funcs->DestroyGC) (pGC);
pGC->serialNumber = GC_CHANGE_SERIAL_BIT;
pLayGC->pKind = pKind;
/*
* Temporarily unwrap Create GC and let
* the new code setup the GC
*/
CreateGC = pGC->pScreen->CreateGC;
LayerUnwrap (pGC->pScreen, pLayGC->pKind, CreateGC);
(*pGC->pScreen->CreateGC) (pGC);
LayerWrap (pGC->pScreen, pLayGC->pKind, CreateGC, CreateGC);
}
(*pGC->funcs->ValidateGC) (pGC, changes, pDraw);
LayerWrap(pGC,pLayGC,funcs,&layerGCFuncs);
}
void
layerDestroyGC(GCPtr pGC)
{
layerGCPriv(pGC);
LayerUnwrap (pGC,pLayGC,funcs);
(*pGC->funcs->DestroyGC)(pGC);
LayerWrap(pGC,pLayGC,funcs,&layerGCFuncs);
}
void
layerChangeGC (GCPtr pGC,
unsigned long mask)
{
layerGCPriv(pGC);
LayerUnwrap (pGC,pLayGC,funcs);
(*pGC->funcs->ChangeGC) (pGC, mask);
LayerWrap(pGC,pLayGC,funcs,&layerGCFuncs);
}
void
layerCopyGC (GCPtr pGCSrc,
unsigned long mask,
GCPtr pGCDst)
{
layerGCPriv(pGCDst);
LayerUnwrap (pGCDst,pLayGC,funcs);
(*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst);
LayerWrap(pGCDst,pLayGC,funcs,&layerGCFuncs);
}
void
layerChangeClip (GCPtr pGC,
int type,
pointer pvalue,
int nrects)
{
layerGCPriv(pGC);
LayerUnwrap (pGC,pLayGC,funcs);
(*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects);
LayerWrap(pGC,pLayGC,funcs,&layerGCFuncs);
}
void
layerCopyClip(GCPtr pGCDst, GCPtr pGCSrc)
{
layerGCPriv(pGCDst);
LayerUnwrap (pGCDst,pLayGC,funcs);
(*pGCDst->funcs->CopyClip) (pGCDst, pGCSrc);
LayerWrap(pGCDst,pLayGC,funcs,&layerGCFuncs);
}
void
layerDestroyClip(GCPtr pGC)
{
layerGCPriv(pGC);
LayerUnwrap (pGC,pLayGC,funcs);
(*pGC->funcs->DestroyClip) (pGC);
LayerWrap(pGC,pLayGC,funcs,&layerGCFuncs);
}
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