53f74b6aa9
backing drawable if the serial numbers differ. Fixes crash in XAA which occurred when the DDX bumped the serial number on the backing drawable and expected it to get re-validated, and we didn't because the wrapped drawable hadn't been bumped.
477 lines
12 KiB
C
477 lines
12 KiB
C
/*
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* Copyright © 2004 Eric Anholt
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Eric Anholt not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Eric Anholt makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL ERIC ANHOLT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Header$ */
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <stdlib.h>
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#include "gcstruct.h"
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#include "pixmapstr.h"
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#include "cw.h"
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#define SETUP_BACKING_DST(_pDst, _pGC) \
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cwGCPtr pGCPrivate = getCwGC (_pGC); \
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int dst_off_x, dst_off_y; \
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DrawablePtr pBackingDst = cwGetBackingDrawable(pDst, &dst_off_x, \
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&dst_off_y); \
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GCPtr pBackingGC = pGCPrivate->pBackingGC ? pGCPrivate->pBackingGC : _pGC
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#define SETUP_BACKING_SRC(pSrc, pGC) \
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int src_off_x, src_off_y; \
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DrawablePtr pBackingSrc = cwGetBackingDrawable(pSrc, &src_off_x, \
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&src_off_y)
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#define PROLOGUE(pGC) do { \
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if (pBackingGC->serialNumber != pBackingDst->serialNumber) { \
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ValidateGC(pBackingDst, pBackingGC); \
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} \
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pGC->funcs = pGCPrivate->wrapFuncs;\
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pGC->ops = pGCPrivate->wrapOps;\
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} while (0)
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#define EPILOGUE(pGC) do { \
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pGCPrivate->wrapFuncs = (pGC)->funcs; \
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pGCPrivate->wrapOps = (pGC)->ops; \
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(pGC)->funcs = &cwGCFuncs; \
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(pGC)->ops = &cwGCOps; \
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} while (0)
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extern GCFuncs cwGCFuncs;
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/*
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* GC ops -- wrap each GC operation with our own function
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*/
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static void cwFillSpans(DrawablePtr pDst, GCPtr pGC, int nInit,
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DDXPointPtr pptInit, int *pwidthInit, int fSorted);
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static void cwSetSpans(DrawablePtr pDst, GCPtr pGC, char *psrc,
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DDXPointPtr ppt, int *pwidth, int nspans, int fSorted);
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static void cwPutImage(DrawablePtr pDst, GCPtr pGC, int depth,
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int x, int y, int w, int h, int leftPad, int format,
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char *pBits);
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static RegionPtr cwCopyArea(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
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int srcx, int srcy, int w, int h,
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int dstx, int dsty);
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static RegionPtr cwCopyPlane(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
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int srcx, int srcy, int w, int h,
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int dstx, int dsty, unsigned long plane);
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static void cwPolyPoint(DrawablePtr pDst, GCPtr pGC, int mode, int npt,
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xPoint *pptInit);
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static void cwPolylines(DrawablePtr pDst, GCPtr pGC, int mode, int npt,
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DDXPointPtr pptInit);
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static void cwPolySegment(DrawablePtr pDst, GCPtr pGC, int nseg,
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xSegment *pSegs);
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static void cwPolyRectangle(DrawablePtr pDst, GCPtr pGC,
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int nrects, xRectangle *pRects);
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static void cwPolyArc(DrawablePtr pDst, GCPtr pGC, int narcs, xArc *parcs);
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static void cwFillPolygon(DrawablePtr pDst, GCPtr pGC, int shape, int mode,
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int count, DDXPointPtr pPts);
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static void cwPolyFillRect(DrawablePtr pDst, GCPtr pGC,
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int nrectFill, xRectangle *prectInit);
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static void cwPolyFillArc(DrawablePtr pDst, GCPtr pGC,
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int narcs, xArc *parcs);
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static int cwPolyText8(DrawablePtr pDrawable, GCPtr pGC, int x, int y,
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int count, char *chars);
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static int cwPolyText16(DrawablePtr pDst, GCPtr pGC, int x, int y,
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int count, unsigned short *chars);
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static void cwImageText8(DrawablePtr pDst, GCPtr pGC, int x, int y,
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int count, char *chars);
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static void cwImageText16(DrawablePtr pDst, GCPtr pGC, int x, int y,
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int count, unsigned short *chars);
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static void cwImageGlyphBlt(DrawablePtr pDst, GCPtr pGC, int x, int y,
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unsigned int nglyph, CharInfoPtr *ppci,
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pointer pglyphBase);
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static void cwPolyGlyphBlt(DrawablePtr pDst, GCPtr pGC, int x, int y,
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unsigned int nglyph, CharInfoPtr *ppci,
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pointer pglyphBase);
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static void cwPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDst,
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int w, int h, int x, int y);
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GCOps cwGCOps = {
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cwFillSpans,
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cwSetSpans,
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cwPutImage,
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cwCopyArea,
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cwCopyPlane,
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cwPolyPoint,
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cwPolylines,
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cwPolySegment,
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cwPolyRectangle,
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cwPolyArc,
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cwFillPolygon,
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cwPolyFillRect,
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cwPolyFillArc,
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cwPolyText8,
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cwPolyText16,
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cwImageText8,
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cwImageText16,
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cwImageGlyphBlt,
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cwPolyGlyphBlt,
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cwPushPixels
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};
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static void
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cwFillSpans(DrawablePtr pDst, GCPtr pGC, int nspans, DDXPointPtr ppt,
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int *pwidth, int fSorted)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XYPOINTS(ppt, nspans);
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(*pBackingGC->ops->FillSpans)(pBackingDst, pBackingGC, nspans, ppt,
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pwidth, fSorted);
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EPILOGUE(pGC);
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}
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static void
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cwSetSpans(DrawablePtr pDst, GCPtr pGC, char *psrc, DDXPointPtr ppt,
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int *pwidth, int nspans, int fSorted)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XYPOINTS(ppt, nspans);
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(*pBackingGC->ops->SetSpans)(pBackingDst, pBackingGC, psrc, ppt, pwidth,
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nspans, fSorted);
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EPILOGUE(pGC);
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}
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static void
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cwPutImage(DrawablePtr pDst, GCPtr pGC, int depth, int x, int y, int w, int h,
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int leftPad, int format, char *pBits)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XY_DST(x, y);
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(*pBackingGC->ops->PutImage)(pBackingDst, pBackingGC, depth, x, y, w, h,
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leftPad, format, pBits);
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EPILOGUE(pGC);
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}
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static RegionPtr
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cwCopyArea(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC, int srcx, int srcy,
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int w, int h, int dstx, int dsty)
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{
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int odstx, odsty;
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RegionPtr exposed = NULL;
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SETUP_BACKING_DST(pDst, pGC);
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SETUP_BACKING_SRC(pSrc, pGC);
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PROLOGUE(pGC);
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odstx = dstx;
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odsty = dsty;
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CW_OFFSET_XY_DST(dstx, dsty);
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CW_OFFSET_XY_SRC(srcx, srcy);
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exposed = (*pBackingGC->ops->CopyArea)(pBackingSrc, pBackingDst,
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pBackingGC, srcx, srcy, w, h,
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dstx, dsty);
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if (exposed != NULL)
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REGION_TRANSLATE(pDst->pScreen, exposed, odstx - dstx, odsty - dsty);
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EPILOGUE(pGC);
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return exposed;
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}
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static RegionPtr
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cwCopyPlane(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC, int srcx, int srcy,
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int w, int h, int dstx, int dsty, unsigned long plane)
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{
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int odstx, odsty;
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RegionPtr exposed = NULL;
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SETUP_BACKING_DST(pDst, pGC);
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SETUP_BACKING_SRC(pSrc, pGC);
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PROLOGUE(pGC);
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odstx = dstx;
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odsty = dsty;
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CW_OFFSET_XY_DST(dstx, dsty);
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CW_OFFSET_XY_SRC(srcx, srcy);
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exposed = (*pBackingGC->ops->CopyPlane)(pBackingSrc, pBackingDst,
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pBackingGC, srcx, srcy, w, h,
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dstx, dsty, plane);
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if (exposed != NULL)
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REGION_TRANSLATE(pDst->pScreen, exposed, odstx - dstx, odsty - dsty);
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EPILOGUE(pGC);
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return exposed;
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}
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static void
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cwPolyPoint(DrawablePtr pDst, GCPtr pGC, int mode, int npt, xPoint *ppt)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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if (mode == CoordModeOrigin)
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CW_OFFSET_XYPOINTS(ppt, npt);
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else
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CW_OFFSET_XYPOINTS(ppt, 1);
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(*pBackingGC->ops->PolyPoint)(pBackingDst, pBackingGC, mode, npt, ppt);
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EPILOGUE(pGC);
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}
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static void
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cwPolylines(DrawablePtr pDst, GCPtr pGC, int mode, int npt, DDXPointPtr ppt)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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if (mode == CoordModeOrigin)
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CW_OFFSET_XYPOINTS(ppt, npt);
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else
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CW_OFFSET_XYPOINTS(ppt, 1);
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(*pBackingGC->ops->Polylines)(pBackingDst, pBackingGC, mode, npt, ppt);
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EPILOGUE(pGC);
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}
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static void
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cwPolySegment(DrawablePtr pDst, GCPtr pGC, int nseg, xSegment *pSegs)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XYPOINTS(pSegs, nseg * 2);
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(*pBackingGC->ops->PolySegment)(pBackingDst, pBackingGC, nseg, pSegs);
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EPILOGUE(pGC);
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}
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static void
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cwPolyRectangle(DrawablePtr pDst, GCPtr pGC, int nrects, xRectangle *pRects)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_RECTS(pRects, nrects);
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(*pBackingGC->ops->PolyRectangle)(pBackingDst, pBackingGC, nrects, pRects);
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EPILOGUE(pGC);
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}
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static void
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cwPolyArc(DrawablePtr pDst, GCPtr pGC, int narcs, xArc *pArcs)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_RECTS(pArcs, narcs);
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(*pBackingGC->ops->PolyArc)(pBackingDst, pBackingGC, narcs, pArcs);
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EPILOGUE(pGC);
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}
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static void
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cwFillPolygon(DrawablePtr pDst, GCPtr pGC, int shape, int mode, int npt,
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DDXPointPtr ppt)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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if (mode == CoordModeOrigin)
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CW_OFFSET_XYPOINTS(ppt, npt);
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else
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CW_OFFSET_XYPOINTS(ppt, 1);
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(*pBackingGC->ops->FillPolygon)(pBackingDst, pBackingGC, shape, mode, npt,
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ppt);
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EPILOGUE(pGC);
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}
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static void
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cwPolyFillRect(DrawablePtr pDst, GCPtr pGC, int nrects, xRectangle *pRects)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_RECTS(pRects, nrects);
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(*pBackingGC->ops->PolyFillRect)(pBackingDst, pBackingGC, nrects, pRects);
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EPILOGUE(pGC);
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}
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static void
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cwPolyFillArc(DrawablePtr pDst, GCPtr pGC, int narcs, xArc *parcs)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_RECTS(parcs, narcs);
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(*pBackingGC->ops->PolyFillArc)(pBackingDst, pBackingGC, narcs, parcs);
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EPILOGUE(pGC);
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}
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static int
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cwPolyText8(DrawablePtr pDst, GCPtr pGC, int x, int y, int count, char *chars)
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{
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int result;
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XY_DST(x, y);
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result = (*pBackingGC->ops->PolyText8)(pBackingDst, pBackingGC, x, y,
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count, chars);
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EPILOGUE(pGC);
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return result;
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}
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static int
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cwPolyText16(DrawablePtr pDst, GCPtr pGC, int x, int y, int count,
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unsigned short *chars)
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{
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int result;
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XY_DST(x, y);
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result = (*pBackingGC->ops->PolyText16)(pBackingDst, pBackingGC, x, y,
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count, chars);
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EPILOGUE(pGC);
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return result;
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}
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static void
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cwImageText8(DrawablePtr pDst, GCPtr pGC, int x, int y, int count, char *chars)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XY_DST(x, y);
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(*pBackingGC->ops->ImageText8)(pBackingDst, pBackingGC, x, y, count,
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chars);
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EPILOGUE(pGC);
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}
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static void
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cwImageText16(DrawablePtr pDst, GCPtr pGC, int x, int y, int count,
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unsigned short *chars)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XY_DST(x, y);
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(*pBackingGC->ops->ImageText16)(pBackingDst, pBackingGC, x, y, count,
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chars);
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EPILOGUE(pGC);
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}
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static void
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cwImageGlyphBlt(DrawablePtr pDst, GCPtr pGC, int x, int y, unsigned int nglyph,
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CharInfoPtr *ppci, pointer pglyphBase)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XY_DST(x, y);
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(*pBackingGC->ops->ImageGlyphBlt)(pBackingDst, pBackingGC, x, y, nglyph,
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ppci, pglyphBase);
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EPILOGUE(pGC);
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}
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static void
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cwPolyGlyphBlt(DrawablePtr pDst, GCPtr pGC, int x, int y, unsigned int nglyph,
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CharInfoPtr *ppci, pointer pglyphBase)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XY_DST(x, y);
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(*pBackingGC->ops->PolyGlyphBlt)(pBackingDst, pBackingGC, x, y, nglyph,
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ppci, pglyphBase);
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EPILOGUE(pGC);
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}
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static void
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cwPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDst, int w, int h,
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int x, int y)
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{
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SETUP_BACKING_DST(pDst, pGC);
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PROLOGUE(pGC);
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CW_OFFSET_XY_DST(x, y);
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(*pBackingGC->ops->PushPixels)(pBackingGC, pBitMap, pBackingDst, w, h,
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x, y);
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EPILOGUE(pGC);
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}
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