+++ /dev/null
-/***********************************************************
-
-Copyright (c) 1987 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-******************************************************************/
-
-/* $XConsortium: gc.c /main/70 1996/08/01 19:21:09 dpw $ */
-/* $XFree86: xc/programs/Xserver/dix/gc.c,v 3.4 1996/12/23 06:29:45 dawes Exp $ */
-
-#include "X.h"
-#include "Xmd.h"
-#include "Xproto.h"
-#include "misc.h"
-#include "resource.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "dixfontstr.h"
-#include "scrnintstr.h"
-#include "region.h"
-
-#include "dix.h"
-#include <assert.h>
-
-extern XID clientErrorValue;
-extern FontPtr defaultFont;
-
-static Bool CreateDefaultTile(
-#if NeedFunctionPrototypes
- GCPtr /*pGC*/
-#endif
-);
-
-unsigned char DefaultDash[2] = {4, 4};
-
-void
-ValidateGC(pDraw, pGC)
- DrawablePtr pDraw;
- GC *pGC;
-{
- (*pGC->funcs->ValidateGC) (pGC, pGC->stateChanges, pDraw);
- pGC->stateChanges = 0;
- pGC->serialNumber = pDraw->serialNumber;
-}
-
-
-/* dixChangeGC(client, pGC, mask, pC32, pUnion)
- *
- * This function was created as part of the Security extension
- * implementation. The client performing the gc change must be passed so
- * that access checks can be performed on any tiles, stipples, or fonts
- * that are specified. ddxen can call this too; they should normally
- * pass NullClient for the client since any access checking should have
- * already been done at a higher level.
- *
- * Since we had to create a new function anyway, we decided to change the
- * way the list of gc values is passed to eliminate the compiler warnings
- * caused by the DoChangeGC interface. You can pass the values via pC32
- * or pUnion, but not both; one of them must be NULL. If you don't need
- * to pass any pointers, you can use either one:
- *
- * /* example calling dixChangeGC using pC32 parameter
- * CARD32 v[2];
- * v[0] = foreground;
- * v[1] = background;
- * dixChangeGC(client, pGC, GCForeground|GCBackground, v, NULL);
- *
- * /* example calling dixChangeGC using pUnion parameter;
- * /* same effect as above
- * ChangeGCVal v[2];
- * v[0].val = foreground;
- * v[1].val = background;
- * dixChangeGC(client, pGC, GCForeground|GCBackground, NULL, v);
- *
- * However, if you need to pass a pointer to a pixmap or font, you MUST
- * use the pUnion parameter.
- *
- * /* example calling dixChangeGC passing pointers in the value list
- * ChangeGCVal v[2];
- * v[0].val = FillTiled;
- * v[1].ptr = pPixmap; /* pointer to a pixmap
- * dixChangeGC(client, pGC, GCFillStyle|GCTile, NULL, v);
- *
- * Note: we could have gotten by with just the pUnion parameter, but on
- * 64 bit machines that would have forced us to copy the value list that
- * comes in the ChangeGC request.
- *
- * Ideally, we'd change all the DoChangeGC calls to dixChangeGC, but this
- * is far too many changes to consider at this time, so we've only
- * changed the ones that caused compiler warnings. New code should use
- * dixChangeGC.
- *
- * dpw
- */
-
-#define NEXTVAL(_type, _var) { \
- if (pC32) _var = (_type)*pC32++; \
- else { \
- _var = (_type)(pUnion->val); pUnion++; \
- } \
- }
-
-#define NEXT_PTR(_type, _var) { \
- assert(pUnion); _var = (_type)pUnion->ptr; pUnion++; }
-
-int
-dixChangeGC(client, pGC, mask, pC32, pUnion)
- ClientPtr client;
- register GC *pGC;
- register BITS32 mask;
- CARD32 *pC32;
- ChangeGCValPtr pUnion;
-{
- register BITS32 index2;
- register int error = 0;
- PixmapPtr pPixmap;
- BITS32 maskQ;
-
- assert( (pC32 && !pUnion) || (!pC32 && pUnion) );
- pGC->serialNumber |= GC_CHANGE_SERIAL_BIT;
-
- maskQ = mask; /* save these for when we walk the GCque */
- while (mask && !error)
- {
- index2 = (BITS32) lowbit (mask);
- mask &= ~index2;
- pGC->stateChanges |= index2;
- switch (index2)
- {
- case GCFunction:
- {
- CARD8 newalu;
- NEXTVAL(CARD8, newalu);
- if (newalu <= GXset)
- pGC->alu = newalu;
- else
- {
- clientErrorValue = newalu;
- error = BadValue;
- }
- break;
- }
- case GCPlaneMask:
- NEXTVAL(unsigned long, pGC->planemask);
- break;
- case GCForeground:
- NEXTVAL(unsigned long, pGC->fgPixel);
- /*
- * this is for CreateGC
- */
- if (!pGC->tileIsPixel && !pGC->tile.pixmap)
- {
- pGC->tileIsPixel = TRUE;
- pGC->tile.pixel = pGC->fgPixel;
- }
- break;
- case GCBackground:
- NEXTVAL(unsigned long, pGC->bgPixel);
- break;
- case GCLineWidth: /* ??? line width is a CARD16 */
- NEXTVAL(CARD16, pGC->lineWidth);
- break;
- case GCLineStyle:
- {
- unsigned int newlinestyle;
- NEXTVAL(unsigned int, newlinestyle);
- if (newlinestyle <= LineDoubleDash)
- pGC->lineStyle = newlinestyle;
- else
- {
- clientErrorValue = newlinestyle;
- error = BadValue;
- }
- break;
- }
- case GCCapStyle:
- {
- unsigned int newcapstyle;
- NEXTVAL(unsigned int, newcapstyle);
- if (newcapstyle <= CapProjecting)
- pGC->capStyle = newcapstyle;
- else
- {
- clientErrorValue = newcapstyle;
- error = BadValue;
- }
- break;
- }
- case GCJoinStyle:
- {
- unsigned int newjoinstyle;
- NEXTVAL(unsigned int, newjoinstyle);
- if (newjoinstyle <= JoinBevel)
- pGC->joinStyle = newjoinstyle;
- else
- {
- clientErrorValue = newjoinstyle;
- error = BadValue;
- }
- break;
- }
- case GCFillStyle:
- {
- unsigned int newfillstyle;
- NEXTVAL(unsigned int, newfillstyle);
- if (newfillstyle <= FillOpaqueStippled)
- pGC->fillStyle = newfillstyle;
- else
- {
- clientErrorValue = newfillstyle;
- error = BadValue;
- }
- break;
- }
- case GCFillRule:
- {
- unsigned int newfillrule;
- NEXTVAL(unsigned int, newfillrule);
- if (newfillrule <= WindingRule)
- pGC->fillRule = newfillrule;
- else
- {
- clientErrorValue = newfillrule;
- error = BadValue;
- }
- break;
- }
- case GCTile:
- {
- XID newpix = 0;
- if (pUnion)
- {
- NEXT_PTR(PixmapPtr, pPixmap);
- }
- else
- {
- NEXTVAL(XID, newpix);
- pPixmap = (PixmapPtr)SecurityLookupIDByType(client,
- newpix, RT_PIXMAP, SecurityReadAccess);
- }
- if (pPixmap)
- {
- if ((pPixmap->drawable.depth != pGC->depth) ||
- (pPixmap->drawable.pScreen != pGC->pScreen))
- {
- error = BadMatch;
- }
- else
- {
- pPixmap->refcnt++;
- if (!pGC->tileIsPixel)
- (* pGC->pScreen->DestroyPixmap)(pGC->tile.pixmap);
- pGC->tileIsPixel = FALSE;
- pGC->tile.pixmap = pPixmap;
- }
- }
- else
- {
- clientErrorValue = newpix;
- error = BadPixmap;
- }
- break;
- }
- case GCStipple:
- {
- XID newstipple = 0;
- if (pUnion)
- {
- NEXT_PTR(PixmapPtr, pPixmap);
- }
- else
- {
- NEXTVAL(XID, newstipple)
- pPixmap = (PixmapPtr)SecurityLookupIDByType(client,
- newstipple, RT_PIXMAP, SecurityReadAccess);
- }
- if (pPixmap)
- {
- if ((pPixmap->drawable.depth != 1) ||
- (pPixmap->drawable.pScreen != pGC->pScreen))
- {
- error = BadMatch;
- }
- else
- {
- pPixmap->refcnt++;
- if (pGC->stipple)
- (* pGC->pScreen->DestroyPixmap)(pGC->stipple);
- pGC->stipple = pPixmap;
- }
- }
- else
- {
- clientErrorValue = newstipple;
- error = BadPixmap;
- }
- break;
- }
- case GCTileStipXOrigin:
- NEXTVAL(INT16, pGC->patOrg.x);
- break;
- case GCTileStipYOrigin:
- NEXTVAL(INT16, pGC->patOrg.y);
- break;
- case GCFont:
- {
- FontPtr pFont;
- XID newfont = 0;
- if (pUnion)
- {
- NEXT_PTR(FontPtr, pFont);
- }
- else
- {
- NEXTVAL(XID, newfont)
- pFont = (FontPtr)SecurityLookupIDByType(client, newfont,
- RT_FONT, SecurityReadAccess);
- }
- if (pFont)
- {
- pFont->refcnt++;
- if (pGC->font)
- CloseFont(pGC->font, (Font)0);
- pGC->font = pFont;
- }
- else
- {
- clientErrorValue = newfont;
- error = BadFont;
- }
- break;
- }
- case GCSubwindowMode:
- {
- unsigned int newclipmode;
- NEXTVAL(unsigned int, newclipmode);
- if (newclipmode <= IncludeInferiors)
- pGC->subWindowMode = newclipmode;
- else
- {
- clientErrorValue = newclipmode;
- error = BadValue;
- }
- break;
- }
- case GCGraphicsExposures:
- {
- unsigned int newge;
- NEXTVAL(unsigned int, newge);
- if (newge <= xTrue)
- pGC->graphicsExposures = newge;
- else
- {
- clientErrorValue = newge;
- error = BadValue;
- }
- break;
- }
- case GCClipXOrigin:
- NEXTVAL(INT16, pGC->clipOrg.x);
- break;
- case GCClipYOrigin:
- NEXTVAL(INT16, pGC->clipOrg.y);
- break;
- case GCClipMask:
- {
- Pixmap pid;
- int clipType;
-
- if (pUnion)
- {
- NEXT_PTR(PixmapPtr, pPixmap);
- }
- else
- {
- NEXTVAL(Pixmap, pid)
- if (pid == None)
- {
- clipType = CT_NONE;
- pPixmap = NullPixmap;
- }
- else
- pPixmap = (PixmapPtr)SecurityLookupIDByType(client,
- pid, RT_PIXMAP, SecurityReadAccess);
- }
-
- if (pPixmap)
- {
- if ((pPixmap->drawable.depth != 1) ||
- (pPixmap->drawable.pScreen != pGC->pScreen))
- {
- error = BadMatch;
- }
- else
- {
- clipType = CT_PIXMAP;
- pPixmap->refcnt++;
- }
- }
- else if (!pUnion && (pid != None))
- {
- clientErrorValue = pid;
- error = BadPixmap;
- }
- if(error == Success)
- {
- (*pGC->funcs->ChangeClip)(pGC, clipType,
- (pointer)pPixmap, 0);
- }
- break;
- }
- case GCDashOffset:
- NEXTVAL(INT16, pGC->dashOffset);
- break;
- case GCDashList:
- {
- CARD8 newdash;
- NEXTVAL(CARD8, newdash);
- if (newdash == 4)
- {
- if (pGC->dash != DefaultDash)
- {
- xfree(pGC->dash);
- pGC->numInDashList = 2;
- pGC->dash = DefaultDash;
- }
- }
- else if (newdash != 0)
- {
- unsigned char *dash;
-
- dash = (unsigned char *)xalloc(2 * sizeof(unsigned char));
- if (dash)
- {
- if (pGC->dash != DefaultDash)
- xfree(pGC->dash);
- pGC->numInDashList = 2;
- pGC->dash = dash;
- dash[0] = newdash;
- dash[1] = newdash;
- }
- else
- error = BadAlloc;
- }
- else
- {
- clientErrorValue = newdash;
- error = BadValue;
- }
- break;
- }
- case GCArcMode:
- {
- unsigned int newarcmode;
- NEXTVAL(unsigned int, newarcmode);
- if (newarcmode <= ArcPieSlice)
- pGC->arcMode = newarcmode;
- else
- {
- clientErrorValue = newarcmode;
- error = BadValue;
- }
- break;
- }
- default:
- clientErrorValue = maskQ;
- error = BadValue;
- break;
- }
- } /* end while mask && !error */
-
- if (pGC->fillStyle == FillTiled && pGC->tileIsPixel)
- {
- if (!CreateDefaultTile (pGC))
- {
- pGC->fillStyle = FillSolid;
- error = BadAlloc;
- }
- }
- (*pGC->funcs->ChangeGC)(pGC, maskQ);
- return error;
-}
-
-#undef NEXTVAL
-#undef NEXT_PTR
-
-/* Publically defined entry to ChangeGC. Just calls dixChangeGC and tells
- * it that all of the entries are constants or IDs */
-int
-ChangeGC(pGC, mask, pval)
- register GC *pGC;
- register BITS32 mask;
- XID *pval;
-{
- return (dixChangeGC(NullClient, pGC, mask, pval, NULL));
-}
-
-/* DoChangeGC(pGC, mask, pval, fPointer)
- mask is a set of bits indicating which values to change.
- pval contains an appropriate value for each mask.
- fPointer is true if the values for tiles, stipples, fonts or clipmasks
- are pointers instead of IDs. Note: if you are passing pointers you
- MUST declare the array of values as type pointer! Other data types
- may not be large enough to hold pointers on some machines. Yes,
- this means you have to cast to (XID *) when you pass the array to
- DoChangeGC. Similarly, if you are not passing pointers (fPointer = 0) you
- MUST declare the array as type XID (not unsigned long!), or again the wrong
- size data type may be used. To avoid this cruftiness, use dixChangeGC
- above.
-
- if there is an error, the value is marked as changed
- anyway, which is probably wrong, but infrequent.
-
-NOTE:
- all values sent over the protocol for ChangeGC requests are
-32 bits long
-*/
-int
-DoChangeGC(pGC, mask, pval, fPointer)
- register GC *pGC;
- register BITS32 mask;
- XID *pval;
- int fPointer;
-{
- if (fPointer)
- /* XXX might be a problem on 64 bit big-endian servers */
- dixChangeGC(NullClient, pGC, mask, NULL, (ChangeGCValPtr)pval);
- else
- dixChangeGC(NullClient, pGC, mask, pval, NULL);
-}
-
-
-/* CreateGC(pDrawable, mask, pval, pStatus)
- creates a default GC for the given drawable, using mask to fill
- in any non-default values.
- Returns a pointer to the new GC on success, NULL otherwise.
- returns status of non-default fields in pStatus
-BUG:
- should check for failure to create default tile
-
-*/
-
-static GCPtr
-#if NeedFunctionPrototypes
-AllocateGC(ScreenPtr pScreen)
-#else
-AllocateGC(pScreen)
- ScreenPtr pScreen;
-#endif
-{
- GCPtr pGC;
- register char *ptr;
- register DevUnion *ppriv;
- register unsigned *sizes;
- register unsigned size;
- register int i;
-
- pGC = (GCPtr)xalloc(pScreen->totalGCSize);
- if (pGC)
- {
- ppriv = (DevUnion *)(pGC + 1);
- pGC->devPrivates = ppriv;
- sizes = pScreen->GCPrivateSizes;
- ptr = (char *)(ppriv + pScreen->GCPrivateLen);
- for (i = pScreen->GCPrivateLen; --i >= 0; ppriv++, sizes++)
- {
- if ( (size = *sizes) )
- {
- ppriv->ptr = (pointer)ptr;
- ptr += size;
- }
- else
- ppriv->ptr = (pointer)NULL;
- }
- }
- return pGC;
-}
-
-GCPtr
-CreateGC(pDrawable, mask, pval, pStatus)
- DrawablePtr pDrawable;
- BITS32 mask;
- XID *pval;
- int *pStatus;
-{
- register GCPtr pGC;
-
- pGC = AllocateGC(pDrawable->pScreen);
- if (!pGC)
- {
- *pStatus = BadAlloc;
- return (GCPtr)NULL;
- }
-
- pGC->pScreen = pDrawable->pScreen;
- pGC->depth = pDrawable->depth;
- pGC->alu = GXcopy; /* dst <- src */
- pGC->planemask = ~0;
- pGC->serialNumber = GC_CHANGE_SERIAL_BIT;
- pGC->funcs = 0;
-
- pGC->fgPixel = 0;
- pGC->bgPixel = 1;
- pGC->lineWidth = 0;
- pGC->lineStyle = LineSolid;
- pGC->capStyle = CapButt;
- pGC->joinStyle = JoinMiter;
- pGC->fillStyle = FillSolid;
- pGC->fillRule = EvenOddRule;
- pGC->arcMode = ArcPieSlice;
- if (mask & GCForeground)
- {
- /*
- * magic special case -- ChangeGC checks for this condition
- * and snags the Foreground value to create a pseudo default-tile
- */
- pGC->tileIsPixel = FALSE;
- pGC->tile.pixmap = NullPixmap;
- }
- else
- {
- pGC->tileIsPixel = TRUE;
- pGC->tile.pixel = 0;
- }
-
- pGC->patOrg.x = 0;
- pGC->patOrg.y = 0;
- pGC->subWindowMode = ClipByChildren;
- pGC->graphicsExposures = TRUE;
- pGC->clipOrg.x = 0;
- pGC->clipOrg.y = 0;
- pGC->clientClipType = CT_NONE;
- pGC->clientClip = (pointer)NULL;
- pGC->numInDashList = 2;
- pGC->dash = DefaultDash;
- pGC->dashOffset = 0;
- pGC->lastWinOrg.x = 0;
- pGC->lastWinOrg.y = 0;
-
- /* use the default font and stipple */
- pGC->font = defaultFont;
- defaultFont->refcnt++;
- pGC->stipple = pGC->pScreen->PixmapPerDepth[0];
- pGC->stipple->refcnt++;
-
- pGC->stateChanges = (1 << (GCLastBit+1)) - 1;
- if (!(*pGC->pScreen->CreateGC)(pGC))
- *pStatus = BadAlloc;
- else if (mask)
- *pStatus = ChangeGC(pGC, mask, pval);
- else
- *pStatus = Success;
- if (*pStatus != Success)
- {
- if (!pGC->tileIsPixel && !pGC->tile.pixmap)
- pGC->tileIsPixel = TRUE; /* undo special case */
- FreeGC(pGC, (XID)0);
- pGC = (GCPtr)NULL;
- }
-
- return (pGC);
-}
-
-static Bool
-CreateDefaultTile (pGC)
- GCPtr pGC;
-{
- XID tmpval[3];
- PixmapPtr pTile;
- GCPtr pgcScratch;
- xRectangle rect;
- CARD16 w, h;
-
- w = 1;
- h = 1;
- (*pGC->pScreen->QueryBestSize)(TileShape, &w, &h, pGC->pScreen);
- pTile = (PixmapPtr)
- (*pGC->pScreen->CreatePixmap)(pGC->pScreen,
- w, h, pGC->depth);
- pgcScratch = GetScratchGC(pGC->depth, pGC->pScreen);
- if (!pTile || !pgcScratch)
- {
- if (pTile)
- (*pTile->drawable.pScreen->DestroyPixmap)(pTile);
- if (pgcScratch)
- FreeScratchGC(pgcScratch);
- return FALSE;
- }
- tmpval[0] = GXcopy;
- tmpval[1] = pGC->tile.pixel;
- tmpval[2] = FillSolid;
- (void)ChangeGC(pgcScratch, GCFunction | GCForeground | GCFillStyle,
- tmpval);
- ValidateGC((DrawablePtr)pTile, pgcScratch);
- rect.x = 0;
- rect.y = 0;
- rect.width = w;
- rect.height = h;
- (*pgcScratch->ops->PolyFillRect)((DrawablePtr)pTile, pgcScratch, 1, &rect);
- /* Always remember to free the scratch graphics context after use. */
- FreeScratchGC(pgcScratch);
-
- pGC->tileIsPixel = FALSE;
- pGC->tile.pixmap = pTile;
- return TRUE;
-}
-
-int
-CopyGC(pgcSrc, pgcDst, mask)
- register GC *pgcSrc;
- register GC *pgcDst;
- register BITS32 mask;
-{
- register BITS32 index2;
- BITS32 maskQ;
- int error = 0;
-
- if (pgcSrc == pgcDst)
- return Success;
- pgcDst->serialNumber |= GC_CHANGE_SERIAL_BIT;
- pgcDst->stateChanges |= mask;
- maskQ = mask;
- while (mask)
- {
- index2 = (BITS32) lowbit (mask);
- mask &= ~index2;
- switch (index2)
- {
- case GCFunction:
- pgcDst->alu = pgcSrc->alu;
- break;
- case GCPlaneMask:
- pgcDst->planemask = pgcSrc->planemask;
- break;
- case GCForeground:
- pgcDst->fgPixel = pgcSrc->fgPixel;
- break;
- case GCBackground:
- pgcDst->bgPixel = pgcSrc->bgPixel;
- break;
- case GCLineWidth:
- pgcDst->lineWidth = pgcSrc->lineWidth;
- break;
- case GCLineStyle:
- pgcDst->lineStyle = pgcSrc->lineStyle;
- break;
- case GCCapStyle:
- pgcDst->capStyle = pgcSrc->capStyle;
- break;
- case GCJoinStyle:
- pgcDst->joinStyle = pgcSrc->joinStyle;
- break;
- case GCFillStyle:
- pgcDst->fillStyle = pgcSrc->fillStyle;
- break;
- case GCFillRule:
- pgcDst->fillRule = pgcSrc->fillRule;
- break;
- case GCTile:
- {
- if (EqualPixUnion(pgcDst->tileIsPixel,
- pgcDst->tile,
- pgcSrc->tileIsPixel,
- pgcSrc->tile))
- {
- break;
- }
- if (!pgcDst->tileIsPixel)
- (* pgcDst->pScreen->DestroyPixmap)(pgcDst->tile.pixmap);
- pgcDst->tileIsPixel = pgcSrc->tileIsPixel;
- pgcDst->tile = pgcSrc->tile;
- if (!pgcDst->tileIsPixel)
- pgcDst->tile.pixmap->refcnt++;
- break;
- }
- case GCStipple:
- {
- if (pgcDst->stipple == pgcSrc->stipple)
- break;
- if (pgcDst->stipple)
- (* pgcDst->pScreen->DestroyPixmap)(pgcDst->stipple);
- pgcDst->stipple = pgcSrc->stipple;
- if (pgcDst->stipple)
- pgcDst->stipple->refcnt ++;
- break;
- }
- case GCTileStipXOrigin:
- pgcDst->patOrg.x = pgcSrc->patOrg.x;
- break;
- case GCTileStipYOrigin:
- pgcDst->patOrg.y = pgcSrc->patOrg.y;
- break;
- case GCFont:
- if (pgcDst->font == pgcSrc->font)
- break;
- if (pgcDst->font)
- CloseFont(pgcDst->font, (Font)0);
- if ((pgcDst->font = pgcSrc->font) != NullFont)
- (pgcDst->font)->refcnt++;
- break;
- case GCSubwindowMode:
- pgcDst->subWindowMode = pgcSrc->subWindowMode;
- break;
- case GCGraphicsExposures:
- pgcDst->graphicsExposures = pgcSrc->graphicsExposures;
- break;
- case GCClipXOrigin:
- pgcDst->clipOrg.x = pgcSrc->clipOrg.x;
- break;
- case GCClipYOrigin:
- pgcDst->clipOrg.y = pgcSrc->clipOrg.y;
- break;
- case GCClipMask:
- (* pgcDst->funcs->CopyClip)(pgcDst, pgcSrc);
- break;
- case GCDashOffset:
- pgcDst->dashOffset = pgcSrc->dashOffset;
- break;
- case GCDashList:
- if (pgcSrc->dash == DefaultDash)
- {
- if (pgcDst->dash != DefaultDash)
- {
- xfree(pgcDst->dash);
- pgcDst->numInDashList = pgcSrc->numInDashList;
- pgcDst->dash = pgcSrc->dash;
- }
- }
- else
- {
- unsigned char *dash;
- unsigned int i;
-
- dash = (unsigned char *)xalloc(pgcSrc->numInDashList *
- sizeof(unsigned char));
- if (dash)
- {
- if (pgcDst->dash != DefaultDash)
- xfree(pgcDst->dash);
- pgcDst->numInDashList = pgcSrc->numInDashList;
- pgcDst->dash = dash;
- for (i=0; i<pgcSrc->numInDashList; i++)
- dash[i] = pgcSrc->dash[i];
- }
- else
- error = BadAlloc;
- }
- break;
- case GCArcMode:
- pgcDst->arcMode = pgcSrc->arcMode;
- break;
- default:
- clientErrorValue = maskQ;
- error = BadValue;
- break;
- }
- }
- if (pgcDst->fillStyle == FillTiled && pgcDst->tileIsPixel)
- {
- if (!CreateDefaultTile (pgcDst))
- {
- pgcDst->fillStyle = FillSolid;
- error = BadAlloc;
- }
- }
- (*pgcDst->funcs->CopyGC) (pgcSrc, maskQ, pgcDst);
- return error;
-}
-
-/*****************
- * FreeGC
- * does the diX part of freeing the characteristics in the GC
- ***************/
-
-/*ARGSUSED*/
-int
-FreeGC(value, gid)
- pointer value; /* must conform to DeleteType */
- XID gid;
-{
- GCPtr pGC = (GCPtr)value;
-
- CloseFont(pGC->font, (Font)0);
- (* pGC->funcs->DestroyClip)(pGC);
-
- if (!pGC->tileIsPixel)
- (* pGC->pScreen->DestroyPixmap)(pGC->tile.pixmap);
- if (pGC->stipple)
- (* pGC->pScreen->DestroyPixmap)(pGC->stipple);
-
- (*pGC->funcs->DestroyGC) (pGC);
- if (pGC->dash != DefaultDash)
- xfree(pGC->dash);
- xfree(pGC);
- return(Success);
-}
-
-void
-SetGCMask(pGC, selectMask, newDataMask)
- GCPtr pGC;
- Mask selectMask;
- Mask newDataMask;
-{
- pGC->stateChanges = (~selectMask & pGC->stateChanges) |
- (selectMask & newDataMask);
- if (selectMask & newDataMask)
- pGC->serialNumber |= GC_CHANGE_SERIAL_BIT;
-}
-
-
-
-/* CreateScratchGC(pScreen, depth)
- like CreateGC, but doesn't do the default tile or stipple,
-since we can't create them without already having a GC. any code
-using the tile or stipple has to set them explicitly anyway,
-since the state of the scratch gc is unknown. This is OK
-because ChangeGC() has to be able to deal with NULL tiles and
-stipples anyway (in case the CreateGC() call has provided a
-value for them -- we can't set the default tile until the
-client-supplied attributes are installed, since the fgPixel
-is what fills the default tile. (maybe this comment should
-go with CreateGC() or ChangeGC().)
-*/
-
-GCPtr
-CreateScratchGC(pScreen, depth)
- ScreenPtr pScreen;
- unsigned depth;
-{
- register GCPtr pGC;
-
- pGC = AllocateGC(pScreen);
- if (!pGC)
- return (GCPtr)NULL;
-
- pGC->pScreen = pScreen;
- pGC->depth = depth;
- pGC->alu = GXcopy; /* dst <- src */
- pGC->planemask = ~0;
- pGC->serialNumber = 0;
-
- pGC->fgPixel = 0;
- pGC->bgPixel = 1;
- pGC->lineWidth = 0;
- pGC->lineStyle = LineSolid;
- pGC->capStyle = CapButt;
- pGC->joinStyle = JoinMiter;
- pGC->fillStyle = FillSolid;
- pGC->fillRule = EvenOddRule;
- pGC->arcMode = ArcPieSlice;
- pGC->font = defaultFont;
- if ( pGC->font) /* necessary, because open of default font could fail */
- pGC->font->refcnt++;
- pGC->tileIsPixel = TRUE;
- pGC->tile.pixel = 0;
- pGC->stipple = NullPixmap;
- pGC->patOrg.x = 0;
- pGC->patOrg.y = 0;
- pGC->subWindowMode = ClipByChildren;
- pGC->graphicsExposures = TRUE;
- pGC->clipOrg.x = 0;
- pGC->clipOrg.y = 0;
- pGC->clientClipType = CT_NONE;
- pGC->dashOffset = 0;
- pGC->numInDashList = 2;
- pGC->dash = DefaultDash;
- pGC->lastWinOrg.x = 0;
- pGC->lastWinOrg.y = 0;
-
- pGC->stateChanges = (1 << (GCLastBit+1)) - 1;
- if (!(*pScreen->CreateGC)(pGC))
- {
- FreeGC(pGC, (XID)0);
- pGC = (GCPtr)NULL;
- }
- return pGC;
-}
-
-void
-FreeGCperDepth(screenNum)
- int screenNum;
-{
- register int i;
- register ScreenPtr pScreen;
- GCPtr *ppGC;
-
- pScreen = screenInfo.screens[screenNum];
- ppGC = pScreen->GCperDepth;
-
- for (i = 0; i <= pScreen->numDepths; i++)
- (void)FreeGC(ppGC[i], (XID)0);
- pScreen->rgf = ~0L;
-}
-
-
-Bool
-CreateGCperDepth(screenNum)
- int screenNum;
-{
- register int i;
- register ScreenPtr pScreen;
- DepthPtr pDepth;
- GCPtr *ppGC;
-
- pScreen = screenInfo.screens[screenNum];
- pScreen->rgf = 0;
- ppGC = pScreen->GCperDepth;
- /* do depth 1 separately because it's not included in list */
- if (!(ppGC[0] = CreateScratchGC(pScreen, 1)))
- return FALSE;
- ppGC[0]->graphicsExposures = FALSE;
-
- pDepth = pScreen->allowedDepths;
- for (i=0; i<pScreen->numDepths; i++, pDepth++)
- {
- if (!(ppGC[i+1] = CreateScratchGC(pScreen, pDepth->depth)))
- {
- for (; i >= 0; i--)
- (void)FreeGC(ppGC[i], (XID)0);
- return FALSE;
- }
- ppGC[i+1]->graphicsExposures = FALSE;
- }
- return TRUE;
-}
-
-Bool
-CreateDefaultStipple(screenNum)
- int screenNum;
-{
- register ScreenPtr pScreen;
- XID tmpval[3];
- xRectangle rect;
- CARD16 w, h;
- GCPtr pgcScratch;
-
- pScreen = screenInfo.screens[screenNum];
-
- w = 16;
- h = 16;
- (* pScreen->QueryBestSize)(StippleShape, &w, &h, pScreen);
- if (!(pScreen->PixmapPerDepth[0] =
- (*pScreen->CreatePixmap)(pScreen, w, h, 1)))
- return FALSE;
- /* fill stipple with 1 */
- tmpval[0] = GXcopy; tmpval[1] = 1; tmpval[2] = FillSolid;
- pgcScratch = GetScratchGC(1, pScreen);
- if (!pgcScratch)
- {
- (*pScreen->DestroyPixmap)(pScreen->PixmapPerDepth[0]);
- return FALSE;
- }
- (void)ChangeGC(pgcScratch, GCFunction|GCForeground|GCFillStyle, tmpval);
- ValidateGC((DrawablePtr)pScreen->PixmapPerDepth[0], pgcScratch);
- rect.x = 0;
- rect.y = 0;
- rect.width = w;
- rect.height = h;
- (*pgcScratch->ops->PolyFillRect)((DrawablePtr)pScreen->PixmapPerDepth[0],
- pgcScratch, 1, &rect);
- FreeScratchGC(pgcScratch);
- return TRUE;
-}
-
-void
-FreeDefaultStipple(screenNum)
- int screenNum;
-{
- ScreenPtr pScreen = screenInfo.screens[screenNum];
- (*pScreen->DestroyPixmap)(pScreen->PixmapPerDepth[0]);
-}
-
-int
-SetDashes(pGC, offset, ndash, pdash)
-register GCPtr pGC;
-unsigned offset;
-register unsigned ndash;
-register unsigned char *pdash;
-{
- register long i;
- register unsigned char *p, *indash;
- BITS32 maskQ = 0;
-
- i = ndash;
- p = pdash;
- while (i--)
- {
- if (!*p++)
- {
- /* dash segment must be > 0 */
- clientErrorValue = 0;
- return BadValue;
- }
- }
-
- if (ndash & 1)
- p = (unsigned char *)xalloc(2 * ndash * sizeof(unsigned char));
- else
- p = (unsigned char *)xalloc(ndash * sizeof(unsigned char));
- if (!p)
- return BadAlloc;
-
- pGC->serialNumber |= GC_CHANGE_SERIAL_BIT;
- if (offset != pGC->dashOffset)
- {
- pGC->dashOffset = offset;
- pGC->stateChanges |= GCDashOffset;
- maskQ |= GCDashOffset;
- }
-
- if (pGC->dash != DefaultDash)
- xfree(pGC->dash);
- pGC->numInDashList = ndash;
- pGC->dash = p;
- if (ndash & 1)
- {
- pGC->numInDashList += ndash;
- indash = pdash;
- i = ndash;
- while (i--)
- *p++ = *indash++;
- }
- while(ndash--)
- *p++ = *pdash++;
- pGC->stateChanges |= GCDashList;
- maskQ |= GCDashList;
-
- if (pGC->funcs->ChangeGC)
- (*pGC->funcs->ChangeGC) (pGC, maskQ);
- return Success;
-}
-
-int
-VerifyRectOrder(nrects, prects, ordering)
- int nrects;
- xRectangle *prects;
- int ordering;
-{
- register xRectangle *prectP, *prectN;
- register int i;
-
- switch(ordering)
- {
- case Unsorted:
- return CT_UNSORTED;
- case YSorted:
- if(nrects > 1)
- {
- for(i = 1, prectP = prects, prectN = prects + 1;
- i < nrects;
- i++, prectP++, prectN++)
- if(prectN->y < prectP->y)
- return -1;
- }
- return CT_YSORTED;
- case YXSorted:
- if(nrects > 1)
- {
- for(i = 1, prectP = prects, prectN = prects + 1;
- i < nrects;
- i++, prectP++, prectN++)
- if((prectN->y < prectP->y) ||
- ( (prectN->y == prectP->y) &&
- (prectN->x < prectP->x) ) )
- return -1;
- }
- return CT_YXSORTED;
- case YXBanded:
- if(nrects > 1)
- {
- for(i = 1, prectP = prects, prectN = prects + 1;
- i < nrects;
- i++, prectP++, prectN++)
- if((prectN->y != prectP->y &&
- prectN->y < prectP->y + (int) prectP->height) ||
- ((prectN->y == prectP->y) &&
- (prectN->height != prectP->height ||
- prectN->x < prectP->x + (int) prectP->width)))
- return -1;
- }
- return CT_YXBANDED;
- }
- return -1;
-}
-
-int
-SetClipRects(pGC, xOrigin, yOrigin, nrects, prects, ordering)
- GCPtr pGC;
- int xOrigin, yOrigin;
- int nrects;
- xRectangle *prects;
- int ordering;
-{
- int newct, size;
- xRectangle *prectsNew;
-
- newct = VerifyRectOrder(nrects, prects, ordering);
- if (newct < 0)
- return(BadMatch);
- size = nrects * sizeof(xRectangle);
- prectsNew = (xRectangle *) xalloc(size);
- if (!prectsNew && size)
- return BadAlloc;
-
- pGC->serialNumber |= GC_CHANGE_SERIAL_BIT;
- pGC->clipOrg.x = xOrigin;
- pGC->stateChanges |= GCClipXOrigin;
-
- pGC->clipOrg.y = yOrigin;
- pGC->stateChanges |= GCClipYOrigin;
-
- if (size)
- memmove((char *)prectsNew, (char *)prects, size);
- (*pGC->funcs->ChangeClip)(pGC, newct, (pointer)prectsNew, nrects);
- if (pGC->funcs->ChangeGC)
- (*pGC->funcs->ChangeGC) (pGC, GCClipXOrigin|GCClipYOrigin|GCClipMask);
- return Success;
-}
-
-
-/*
- sets reasonable defaults
- if we can get a pre-allocated one, use it and mark it as used.
- if we can't, create one out of whole cloth (The Velveteen GC -- if
- you use it often enough it will become real.)
-*/
-GCPtr
-GetScratchGC(depth, pScreen)
- register unsigned depth;
- register ScreenPtr pScreen;
-{
- register int i;
- register GCPtr pGC;
-
- for (i=0; i<=pScreen->numDepths; i++)
- if ( pScreen->GCperDepth[i]->depth == depth &&
- !(pScreen->rgf & (1L << (i+1)))
- )
- {
- pScreen->rgf |= (1L << (i+1));
- pGC = (pScreen->GCperDepth[i]);
-
- pGC->alu = GXcopy;
- pGC->planemask = ~0;
- pGC->serialNumber = 0;
- pGC->fgPixel = 0;
- pGC->bgPixel = 1;
- pGC->lineWidth = 0;
- pGC->lineStyle = LineSolid;
- pGC->capStyle = CapButt;
- pGC->joinStyle = JoinMiter;
- pGC->fillStyle = FillSolid;
- pGC->fillRule = EvenOddRule;
- pGC->arcMode = ArcChord;
- pGC->patOrg.x = 0;
- pGC->patOrg.y = 0;
- pGC->subWindowMode = ClipByChildren;
- pGC->graphicsExposures = FALSE;
- pGC->clipOrg.x = 0;
- pGC->clipOrg.y = 0;
- if (pGC->clientClipType != CT_NONE)
- (*pGC->funcs->ChangeClip) (pGC, CT_NONE, NULL, 0);
- pGC->stateChanges = (1 << (GCLastBit+1)) - 1;
- return pGC;
- }
- /* if we make it this far, need to roll our own */
- pGC = CreateScratchGC(pScreen, depth);
- if (pGC)
- pGC->graphicsExposures = FALSE;
- return pGC;
-}
-
-/*
- if the gc to free is in the table of pre-existing ones,
-mark it as available.
- if not, free it for real
-*/
-void
-FreeScratchGC(pGC)
- register GCPtr pGC;
-{
- register ScreenPtr pScreen = pGC->pScreen;
- register int i;
-
- for (i=0; i<=pScreen->numDepths; i++)
- {
- if ( pScreen->GCperDepth[i] == pGC)
- {
- pScreen->rgf &= ~(1L << (i+1));
- return;
- }
- }
- (void)FreeGC(pGC, (GContext)0);
-}
projects / rdpsrv / blobdiff