+++ /dev/null
-/* $XConsortium: migc.c,v 1.4 94/04/17 20:27:36 dpw Exp $ */
-/*
-
-Copyright (c) 1993 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.
-
-*/
-
-
-#include "scrnintstr.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-#include "migc.h"
-
-/* This structure has to line up with the mfb and cfb gc private structures so
- * that when it is superimposed on them, the three fields that migc.c needs to
- * see will be accessed correctly. I know this is not beautiful, but it seemed
- * better than all the code duplication in cfb and mfb.
- */
-typedef struct {
- unsigned char pad1;
- unsigned char pad2;
- unsigned char pad3;
- unsigned pad4:1;
- unsigned freeCompClip:1;
- PixmapPtr pRotatedPixmap;
- RegionPtr pCompositeClip;
-} miPrivGC;
-
-static int miGCPrivateIndex;
-
-void
-miRegisterGCPrivateIndex(gcindex)
- int gcindex;
-{
- miGCPrivateIndex = gcindex;
-}
-
-/* ARGSUSED */
-void
-miChangeGC(pGC, mask)
- GCPtr pGC;
- unsigned long mask;
-{
- return;
-}
-
-void
-miDestroyGC(pGC)
- GCPtr pGC;
-{
- miPrivGC *pPriv;
-
- pPriv = (miPrivGC *) (pGC->devPrivates[miGCPrivateIndex].ptr);
- if (pPriv->pRotatedPixmap)
- (*pGC->pScreen->DestroyPixmap) (pPriv->pRotatedPixmap);
- if (pPriv->freeCompClip)
- REGION_DESTROY(pGC->pScreen, pPriv->pCompositeClip);
- miDestroyGCOps(pGC->ops);
-}
-
-/*
- * create a private op array for a gc
- */
-
-GCOpsPtr
-miCreateGCOps(prototype)
- GCOpsPtr prototype;
-{
- GCOpsPtr ret;
- extern Bool Must_have_memory;
-
- /* XXX */ Must_have_memory = TRUE;
- ret = (GCOpsPtr) xalloc(sizeof(GCOps));
- /* XXX */ Must_have_memory = FALSE;
- if (!ret)
- return 0;
- *ret = *prototype;
- ret->devPrivate.val = 1;
- return ret;
-}
-
-void
-miDestroyGCOps(ops)
- GCOpsPtr ops;
-{
- if (ops->devPrivate.val)
- xfree(ops);
-}
-
-
-void
-miDestroyClip(pGC)
- GCPtr pGC;
-{
- if (pGC->clientClipType == CT_NONE)
- return;
- else if (pGC->clientClipType == CT_PIXMAP)
- {
- (*pGC->pScreen->DestroyPixmap) ((PixmapPtr) (pGC->clientClip));
- }
- else
- {
- /*
- * we know we'll never have a list of rectangles, since ChangeClip
- * immediately turns them into a region
- */
- REGION_DESTROY(pGC->pScreen, pGC->clientClip);
- }
- pGC->clientClip = NULL;
- pGC->clientClipType = CT_NONE;
-}
-
-void
-miChangeClip(pGC, type, pvalue, nrects)
- GCPtr pGC;
- int type;
- pointer pvalue;
- int nrects;
-{
- (*pGC->funcs->DestroyClip) (pGC);
- if (type == CT_PIXMAP)
- {
- /* convert the pixmap to a region */
- pGC->clientClip = (pointer) BITMAP_TO_REGION(pGC->pScreen,
- (PixmapPtr) pvalue);
- (*pGC->pScreen->DestroyPixmap) (pvalue);
- }
- else if (type == CT_REGION)
- {
- /* stuff the region in the GC */
- pGC->clientClip = pvalue;
- }
- else if (type != CT_NONE)
- {
- pGC->clientClip = (pointer) RECTS_TO_REGION(pGC->pScreen, nrects,
- (xRectangle *) pvalue,
- type);
- xfree(pvalue);
- }
- pGC->clientClipType = (type != CT_NONE && pGC->clientClip) ? CT_REGION : CT_NONE;
- pGC->stateChanges |= GCClipMask;
-}
-
-void
-miCopyClip(pgcDst, pgcSrc)
- GCPtr pgcDst, pgcSrc;
-{
- RegionPtr prgnNew;
-
- switch (pgcSrc->clientClipType)
- {
- case CT_PIXMAP:
- ((PixmapPtr) pgcSrc->clientClip)->refcnt++;
- /* Fall through !! */
- case CT_NONE:
- (*pgcDst->funcs->ChangeClip) (pgcDst, (int) pgcSrc->clientClipType,
- pgcSrc->clientClip, 0);
- break;
- case CT_REGION:
- prgnNew = REGION_CREATE(pgcSrc->pScreen, NULL, 1);
- REGION_COPY(pgcDst->pScreen, prgnNew,
- (RegionPtr) (pgcSrc->clientClip));
- (*pgcDst->funcs->ChangeClip) (pgcDst, CT_REGION, (pointer) prgnNew, 0);
- break;
- }
-}
-
-/* ARGSUSED */
-void
-miCopyGC(pGCSrc, changes, pGCDst)
- GCPtr pGCSrc;
- unsigned long changes;
- GCPtr pGCDst;
-{
- return;
-}
-
-void
-miComputeCompositeClip(pGC, pDrawable)
- GCPtr pGC;
- DrawablePtr pDrawable;
-{
- ScreenPtr pScreen = pGC->pScreen;
- miPrivGC *devPriv = (miPrivGC *) (pGC->devPrivates[miGCPrivateIndex].ptr);
-
- if (pDrawable->type == DRAWABLE_WINDOW)
- {
- WindowPtr pWin = (WindowPtr) pDrawable;
- RegionPtr pregWin;
- Bool freeTmpClip, freeCompClip;
-
- if (pGC->subWindowMode == IncludeInferiors)
- {
- pregWin = NotClippedByChildren(pWin);
- freeTmpClip = TRUE;
- }
- else
- {
- pregWin = &pWin->clipList;
- freeTmpClip = FALSE;
- }
- freeCompClip = devPriv->freeCompClip;
-
- /*
- * if there is no client clip, we can get by with just keeping the
- * pointer we got, and remembering whether or not should destroy (or
- * maybe re-use) it later. this way, we avoid unnecessary copying of
- * regions. (this wins especially if many clients clip by children
- * and have no client clip.)
- */
- if (pGC->clientClipType == CT_NONE)
- {
- if (freeCompClip)
- REGION_DESTROY(pScreen, devPriv->pCompositeClip);
- devPriv->pCompositeClip = pregWin;
- devPriv->freeCompClip = freeTmpClip;
- }
- else
- {
- /*
- * we need one 'real' region to put into the composite clip. if
- * pregWin the current composite clip are real, we can get rid of
- * one. if pregWin is real and the current composite clip isn't,
- * use pregWin for the composite clip. if the current composite
- * clip is real and pregWin isn't, use the current composite
- * clip. if neither is real, create a new region.
- */
-
- REGION_TRANSLATE(pScreen, pGC->clientClip,
- pDrawable->x + pGC->clipOrg.x,
- pDrawable->y + pGC->clipOrg.y);
-
- if (freeCompClip)
- {
- REGION_INTERSECT(pGC->pScreen, devPriv->pCompositeClip,
- pregWin, pGC->clientClip);
- if (freeTmpClip)
- REGION_DESTROY(pScreen, pregWin);
- }
- else if (freeTmpClip)
- {
- REGION_INTERSECT(pScreen, pregWin, pregWin, pGC->clientClip);
- devPriv->pCompositeClip = pregWin;
- }
- else
- {
- devPriv->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0);
- REGION_INTERSECT(pScreen, devPriv->pCompositeClip,
- pregWin, pGC->clientClip);
- }
- devPriv->freeCompClip = TRUE;
- REGION_TRANSLATE(pScreen, pGC->clientClip,
- -(pDrawable->x + pGC->clipOrg.x),
- -(pDrawable->y + pGC->clipOrg.y));
- }
- } /* end of composite clip for a window */
- else
- {
- BoxRec pixbounds;
-
- /* XXX should we translate by drawable.x/y here ? */
- pixbounds.x1 = 0;
- pixbounds.y1 = 0;
- pixbounds.x2 = pDrawable->width;
- pixbounds.y2 = pDrawable->height;
-
- if (devPriv->freeCompClip)
- {
- REGION_RESET(pScreen, devPriv->pCompositeClip, &pixbounds);
- }
- else
- {
- devPriv->freeCompClip = TRUE;
- devPriv->pCompositeClip = REGION_CREATE(pScreen, &pixbounds, 1);
- }
-
- if (pGC->clientClipType == CT_REGION)
- {
- REGION_TRANSLATE(pScreen, devPriv->pCompositeClip,
- -pGC->clipOrg.x, -pGC->clipOrg.y);
- REGION_INTERSECT(pScreen, devPriv->pCompositeClip,
- devPriv->pCompositeClip, pGC->clientClip);
- REGION_TRANSLATE(pScreen, devPriv->pCompositeClip,
- pGC->clipOrg.x, pGC->clipOrg.y);
- }
- } /* end of composite clip for pixmap */
-} /* end miComputeCompositeClip */
projects / rdpsrv / blobdiff