/*********************************************************** Copyright 1987, 1998 The Open Group 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. 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 OPEN GROUP 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 Open Group 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 Open Group. 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. ******************************************************************/ /***************************************************************** Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. 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. 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 DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from Digital Equipment Corporation. ******************************************************************/ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include <X11/X.h> #include <X11/Xproto.h> #include <X11/Xprotostr.h> #include "misc.h" #include "regionstr.h" #include "scrnintstr.h" #include "gcstruct.h" #include "windowstr.h" #include "pixmap.h" #include "input.h" #include "dixstruct.h" #include "mi.h" #include <X11/Xmd.h> #include "globals.h" #ifdef PANORAMIX #include "panoramiX.h" #include "panoramiXsrv.h" #endif /* machine-independent graphics exposure code. any device that uses the region package can call this. */ #ifndef RECTLIMIT #define RECTLIMIT 25 /* pick a number, any number > 8 */ #endif /* miHandleExposures generate a region for exposures for areas that were copied from obscured or non-existent areas to non-obscured areas of the destination. Paint the background for the region, if the destination is a window. NOTE: this should generally be called, even if graphicsExposures is false, because this is where bits get recovered from backing store. NOTE: added argument 'plane' is used to indicate how exposures from backing store should be accomplished. If plane is 0 (i.e. no bit plane), CopyArea should be used, else a CopyPlane of the indicated plane will be used. The exposing is done by the backing store's GraphicsExpose function, of course. */ RegionPtr miHandleExposures(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC, int srcx, int srcy, int width, int height, int dstx, int dsty, unsigned long plane) { RegionPtr prgnSrcClip; /* drawable-relative source clip */ RegionRec rgnSrcRec; RegionPtr prgnDstClip; /* drawable-relative dest clip */ RegionRec rgnDstRec; BoxRec srcBox; /* unclipped source */ RegionRec rgnExposed; /* exposed region, calculated source- relative, made dst relative to intersect with visible parts of dest and send events to client, and then screen relative to paint the window background */ WindowPtr pSrcWin; BoxRec expBox; Bool extents; /* avoid work if we can */ if (!pGC->graphicsExposures && (pDstDrawable->type == DRAWABLE_PIXMAP) && ((pSrcDrawable->type == DRAWABLE_PIXMAP) || (((WindowPtr) pSrcDrawable)->backStorage == NULL))) return NULL; srcBox.x1 = srcx; srcBox.y1 = srcy; srcBox.x2 = srcx + width; srcBox.y2 = srcy + height; if (pSrcDrawable->type != DRAWABLE_PIXMAP) { BoxRec TsrcBox; TsrcBox.x1 = srcx + pSrcDrawable->x; TsrcBox.y1 = srcy + pSrcDrawable->y; TsrcBox.x2 = TsrcBox.x1 + width; TsrcBox.y2 = TsrcBox.y1 + height; pSrcWin = (WindowPtr) pSrcDrawable; if (pGC->subWindowMode == IncludeInferiors) { prgnSrcClip = NotClippedByChildren(pSrcWin); if ((RegionContainsRect(prgnSrcClip, &TsrcBox)) == rgnIN) { RegionDestroy(prgnSrcClip); return NULL; } } else { if ((RegionContainsRect(&pSrcWin->clipList, &TsrcBox)) == rgnIN) return NULL; prgnSrcClip = &rgnSrcRec; RegionNull(prgnSrcClip); RegionCopy(prgnSrcClip, &pSrcWin->clipList); } RegionTranslate(prgnSrcClip, -pSrcDrawable->x, -pSrcDrawable->y); } else { BoxRec box; if ((srcBox.x1 >= 0) && (srcBox.y1 >= 0) && (srcBox.x2 <= pSrcDrawable->width) && (srcBox.y2 <= pSrcDrawable->height)) return NULL; box.x1 = 0; box.y1 = 0; box.x2 = pSrcDrawable->width; box.y2 = pSrcDrawable->height; prgnSrcClip = &rgnSrcRec; RegionInit(prgnSrcClip, &box, 1); pSrcWin = NULL; } if (pDstDrawable == pSrcDrawable) { prgnDstClip = prgnSrcClip; } else if (pDstDrawable->type != DRAWABLE_PIXMAP) { if (pGC->subWindowMode == IncludeInferiors) { prgnDstClip = NotClippedByChildren((WindowPtr) pDstDrawable); } else { prgnDstClip = &rgnDstRec; RegionNull(prgnDstClip); RegionCopy(prgnDstClip, &((WindowPtr) pDstDrawable)->clipList); } RegionTranslate(prgnDstClip, -pDstDrawable->x, -pDstDrawable->y); } else { BoxRec box; box.x1 = 0; box.y1 = 0; box.x2 = pDstDrawable->width; box.y2 = pDstDrawable->height; prgnDstClip = &rgnDstRec; RegionInit(prgnDstClip, &box, 1); } /* drawable-relative source region */ RegionInit(&rgnExposed, &srcBox, 1); /* now get the hidden parts of the source box */ RegionSubtract(&rgnExposed, &rgnExposed, prgnSrcClip); /* move them over the destination */ RegionTranslate(&rgnExposed, dstx - srcx, dsty - srcy); /* intersect with visible areas of dest */ RegionIntersect(&rgnExposed, &rgnExposed, prgnDstClip); /* intersect with client clip region. */ if (pGC->clientClipType == CT_REGION) RegionIntersect(&rgnExposed, &rgnExposed, pGC->clientClip); /* * If we have LOTS of rectangles, we decide to take the extents * and force an exposure on that. This should require much less * work overall, on both client and server. This is cheating, but * isn't prohibited by the protocol ("spontaneous combustion" :-) * for windows. */ extents = pGC->graphicsExposures && (RegionNumRects(&rgnExposed) > RECTLIMIT) && (pDstDrawable->type != DRAWABLE_PIXMAP); if (pSrcWin) { RegionPtr region; if (!(region = wClipShape(pSrcWin))) region = wBoundingShape(pSrcWin); /* * If you try to CopyArea the extents of a shaped window, compacting the * exposed region will undo all our work! */ if (extents && pSrcWin && region && (RegionContainsRect(region, &srcBox) != rgnIN)) extents = FALSE; } if (extents) { expBox = *RegionExtents(&rgnExposed); RegionReset(&rgnExposed, &expBox); } if ((pDstDrawable->type != DRAWABLE_PIXMAP) && (((WindowPtr) pDstDrawable)->backgroundState != None)) { WindowPtr pWin = (WindowPtr) pDstDrawable; /* make the exposed area screen-relative */ RegionTranslate(&rgnExposed, pDstDrawable->x, pDstDrawable->y); if (extents) { /* miPaintWindow doesn't clip, so we have to */ RegionIntersect(&rgnExposed, &rgnExposed, &pWin->clipList); } miPaintWindow((WindowPtr) pDstDrawable, &rgnExposed, PW_BACKGROUND); if (extents) { RegionReset(&rgnExposed, &expBox); } else RegionTranslate(&rgnExposed, -pDstDrawable->x, -pDstDrawable->y); } if (prgnDstClip == &rgnDstRec) { RegionUninit(prgnDstClip); } else if (prgnDstClip != prgnSrcClip) { RegionDestroy(prgnDstClip); } if (prgnSrcClip == &rgnSrcRec) { RegionUninit(prgnSrcClip); } else { RegionDestroy(prgnSrcClip); } if (pGC->graphicsExposures) { /* don't look */ RegionPtr exposed = RegionCreate(NullBox, 0); *exposed = rgnExposed; return exposed; } else { RegionUninit(&rgnExposed); return NULL; } } /* send GraphicsExpose events, or a NoExpose event, based on the region */ void miSendGraphicsExpose(ClientPtr client, RegionPtr pRgn, XID drawable, int major, int minor) { if (pRgn && !RegionNil(pRgn)) { xEvent *pEvent; xEvent *pe; BoxPtr pBox; int i; int numRects; numRects = RegionNumRects(pRgn); pBox = RegionRects(pRgn); if (!(pEvent = malloc(numRects * sizeof(xEvent)))) return; pe = pEvent; for (i = 1; i <= numRects; i++, pe++, pBox++) { pe->u.u.type = GraphicsExpose; pe->u.graphicsExposure.drawable = drawable; pe->u.graphicsExposure.x = pBox->x1; pe->u.graphicsExposure.y = pBox->y1; pe->u.graphicsExposure.width = pBox->x2 - pBox->x1; pe->u.graphicsExposure.height = pBox->y2 - pBox->y1; pe->u.graphicsExposure.count = numRects - i; pe->u.graphicsExposure.majorEvent = major; pe->u.graphicsExposure.minorEvent = minor; } /* GraphicsExpose is a "critical event", which TryClientEvents * handles specially. */ TryClientEvents(client, NULL, pEvent, numRects, (Mask) 0, NoEventMask, NullGrab); free(pEvent); } else { xEvent event; memset(&event, 0, sizeof(xEvent)); event.u.u.type = NoExpose; event.u.noExposure.drawable = drawable; event.u.noExposure.majorEvent = major; event.u.noExposure.minorEvent = minor; WriteEventsToClient(client, 1, &event); } } void miSendExposures(WindowPtr pWin, RegionPtr pRgn, int dx, int dy) { BoxPtr pBox; int numRects; xEvent *pEvent, *pe; int i; pBox = RegionRects(pRgn); numRects = RegionNumRects(pRgn); if (!(pEvent = calloc(1, numRects * sizeof(xEvent)))) return; for (i = numRects, pe = pEvent; --i >= 0; pe++, pBox++) { pe->u.u.type = Expose; pe->u.expose.window = pWin->drawable.id; pe->u.expose.x = pBox->x1 - dx; pe->u.expose.y = pBox->y1 - dy; pe->u.expose.width = pBox->x2 - pBox->x1; pe->u.expose.height = pBox->y2 - pBox->y1; pe->u.expose.count = i; } #ifdef PANORAMIX if (!noPanoramiXExtension) { int scrnum = pWin->drawable.pScreen->myNum; int x = 0, y = 0; XID realWin = 0; if (!pWin->parent) { x = screenInfo.screens[scrnum]->x; y = screenInfo.screens[scrnum]->y; pWin = screenInfo.screens[0]->root; realWin = pWin->drawable.id; } else if (scrnum) { PanoramiXRes *win; win = PanoramiXFindIDByScrnum(XRT_WINDOW, pWin->drawable.id, scrnum); if (!win) { free(pEvent); return; } realWin = win->info[0].id; dixLookupWindow(&pWin, realWin, serverClient, DixSendAccess); } if (x || y || scrnum) for (i = 0; i < numRects; i++) { pEvent[i].u.expose.window = realWin; pEvent[i].u.expose.x += x; pEvent[i].u.expose.y += y; } } #endif DeliverEvents(pWin, pEvent, numRects, NullWindow); free(pEvent); } void miWindowExposures(WindowPtr pWin, RegionPtr prgn, RegionPtr other_exposed) { RegionPtr exposures = prgn; if ((prgn && !RegionNil(prgn)) || (exposures && !RegionNil(exposures)) || other_exposed) { RegionRec expRec; int clientInterested; /* * Restore from backing-store FIRST. */ clientInterested = (pWin->eventMask | wOtherEventMasks(pWin)) & ExposureMask; if (other_exposed) { if (exposures) { RegionUnion(other_exposed, exposures, other_exposed); if (exposures != prgn) RegionDestroy(exposures); } exposures = other_exposed; } if (clientInterested && exposures && (RegionNumRects(exposures) > RECTLIMIT)) { /* * If we have LOTS of rectangles, we decide to take the extents * and force an exposure on that. This should require much less * work overall, on both client and server. This is cheating, but * isn't prohibited by the protocol ("spontaneous combustion" :-). */ BoxRec box; box = *RegionExtents(exposures); if (exposures == prgn) { exposures = &expRec; RegionInit(exposures, &box, 1); RegionReset(prgn, &box); } else { RegionReset(exposures, &box); RegionUnion(prgn, prgn, exposures); } /* miPaintWindow doesn't clip, so we have to */ RegionIntersect(prgn, prgn, &pWin->clipList); } if (prgn && !RegionNil(prgn)) miPaintWindow(pWin, prgn, PW_BACKGROUND); if (clientInterested && exposures && !RegionNil(exposures)) miSendExposures(pWin, exposures, pWin->drawable.x, pWin->drawable.y); if (exposures == &expRec) { RegionUninit(exposures); } else if (exposures && exposures != prgn && exposures != other_exposed) RegionDestroy(exposures); if (prgn) RegionEmpty(prgn); } else if (exposures && exposures != prgn) RegionDestroy(exposures); } #ifdef ROOTLESS /* Ugly, ugly, but we lost our hooks into miPaintWindow... =/ */ void RootlessSetPixmapOfAncestors(WindowPtr pWin); void RootlessStartDrawing(WindowPtr pWin); void RootlessDamageRegion(WindowPtr pWin, RegionPtr prgn); Bool IsFramedWindow(WindowPtr pWin); #endif void miPaintWindow(WindowPtr pWin, RegionPtr prgn, int what) { ScreenPtr pScreen = pWin->drawable.pScreen; ChangeGCVal gcval[6]; BITS32 gcmask; GCPtr pGC; int i; BoxPtr pbox; xRectangle *prect; int numRects; /* * Distance from screen to destination drawable, use this * to adjust rendering coordinates which come in in screen space */ int draw_x_off, draw_y_off; /* * Tile offset for drawing; these need to align the tile * to the appropriate window origin */ int tile_x_off, tile_y_off; PixUnion fill; Bool solid = TRUE; DrawablePtr drawable = &pWin->drawable; #ifdef ROOTLESS if (!drawable || drawable->type == UNDRAWABLE_WINDOW) return; if (IsFramedWindow(pWin)) { RootlessStartDrawing(pWin); RootlessDamageRegion(pWin, prgn); if (pWin->backgroundState == ParentRelative) { if ((what == PW_BACKGROUND) || (what == PW_BORDER && !pWin->borderIsPixel)) RootlessSetPixmapOfAncestors(pWin); } } #endif if (what == PW_BACKGROUND) { while (pWin->backgroundState == ParentRelative) pWin = pWin->parent; draw_x_off = drawable->x; draw_y_off = drawable->y; tile_x_off = pWin->drawable.x - draw_x_off; tile_y_off = pWin->drawable.y - draw_y_off; fill = pWin->background; #ifdef COMPOSITE if (pWin->inhibitBGPaint) return; #endif switch (pWin->backgroundState) { case None: return; case BackgroundPixmap: solid = FALSE; break; } } else { PixmapPtr pixmap; tile_x_off = drawable->x; tile_y_off = drawable->y; /* servers without pixmaps draw their own borders */ if (!pScreen->GetWindowPixmap) return; pixmap = (*pScreen->GetWindowPixmap) ((WindowPtr) drawable); drawable = &pixmap->drawable; #ifdef COMPOSITE draw_x_off = pixmap->screen_x; draw_y_off = pixmap->screen_y; tile_x_off -= draw_x_off; tile_y_off -= draw_y_off; #else draw_x_off = 0; draw_y_off = 0; #endif fill = pWin->border; solid = pWin->borderIsPixel; } gcval[0].val = GXcopy; gcmask = GCFunction; #ifdef ROOTLESS_SAFEALPHA /* Bit mask for alpha channel with a particular number of bits per * pixel. Note that we only care for 32bpp data. Mac OS X uses planar * alpha for 16bpp. */ #define RootlessAlphaMask(bpp) ((bpp) == 32 ? 0xFF000000 : 0) #endif if (solid) { #ifdef ROOTLESS_SAFEALPHA gcval[1].val = fill.pixel | RootlessAlphaMask(pWin->drawable.bitsPerPixel); #else gcval[1].val = fill.pixel; #endif gcval[2].val = FillSolid; gcmask |= GCForeground | GCFillStyle; } else { int c = 1; #ifdef ROOTLESS_SAFEALPHA gcval[c++].val = ((CARD32) -1) & ~RootlessAlphaMask(pWin->drawable.bitsPerPixel); gcmask |= GCPlaneMask; #endif gcval[c++].val = FillTiled; gcval[c++].ptr = (pointer) fill.pixmap; gcval[c++].val = tile_x_off; gcval[c++].val = tile_y_off; gcmask |= GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin; } prect = malloc(RegionNumRects(prgn) * sizeof(xRectangle)); if (!prect) return; pGC = GetScratchGC(drawable->depth, drawable->pScreen); if (!pGC) { free(prect); return; } ChangeGC(NullClient, pGC, gcmask, gcval); ValidateGC(drawable, pGC); numRects = RegionNumRects(prgn); pbox = RegionRects(prgn); for (i = numRects; --i >= 0; pbox++, prect++) { prect->x = pbox->x1 - draw_x_off; prect->y = pbox->y1 - draw_y_off; prect->width = pbox->x2 - pbox->x1; prect->height = pbox->y2 - pbox->y1; } prect -= numRects; (*pGC->ops->PolyFillRect) (drawable, pGC, numRects, prect); free(prect); FreeScratchGC(pGC); } /* MICLEARDRAWABLE -- sets the entire drawable to the background color of * the GC. Useful when we have a scratch drawable and need to initialize * it. */ void miClearDrawable(DrawablePtr pDraw, GCPtr pGC) { ChangeGCVal fg, bg; xRectangle rect; fg.val = pGC->fgPixel; bg.val = pGC->bgPixel; rect.x = 0; rect.y = 0; rect.width = pDraw->width; rect.height = pDraw->height; ChangeGC(NullClient, pGC, GCForeground, &bg); ValidateGC(pDraw, pGC); (*pGC->ops->PolyFillRect) (pDraw, pGC, 1, &rect); ChangeGC(NullClient, pGC, GCForeground, &fg); ValidateGC(pDraw, pGC); }