/*********************************************************** Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts, and the Massachusetts Institute of Technology, Cambridge, 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 names of Digital or MIT 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: main.c,v 5.8 89/09/21 19:22:06 keith Exp $ */ #include "X.h" #include "Xproto.h" #include "input.h" #include "scrnintstr.h" #include "misc.h" #include "os.h" #include "windowstr.h" #include "resource.h" #include "dixstruct.h" #include "gcstruct.h" #include "extension.h" #include "colormap.h" #include "cursorstr.h" #include "opaque.h" #include "servermd.h" extern long defaultScreenSaverTime; extern long defaultScreenSaverInterval; extern int defaultScreenSaverBlanking; extern int defaultScreenSaverAllowExposures; void ddxGiveUp(); extern char *display; char *ConnectionInfo; xConnSetupPrefix connSetupPrefix; extern WindowPtr *WindowTable; extern FontPtr defaultFont; extern void SetInputCheck(); extern void InitProcVectors(); extern void InitEvents(); extern void InitExtensions(); extern void DefineInitialRootWindow(); extern void QueryMinMaxKeyCodes(); extern Bool InitClientResources(); static Bool CreateConnectionBlock(); extern Bool CreateGCperDepthArray(); extern Bool CreateDefaultStipple(); extern void ResetWellKnownSockets(); extern void ResetWindowPrivates(); extern void ResetGCPrivates(); static void FreeScreen(); static void ResetScreenPrivates(); PaddingInfo PixmapWidthPaddingInfo[33]; int connBlockScreenStart; static int restart = 0; void NotImplemented() { FatalError("Not implemented"); } /* * This array encodes the answer to the question "what is the log base 2 * of the number of pixels that fit in a scanline pad unit?" * Note that ~0 is an invalid entry (mostly for the benefit of the reader). */ static int answer[6][3] = { /* pad pad pad */ /* 8 16 32 */ { 3, 4, 5 }, /* 1 bit per pixel */ { 1, 2, 3 }, /* 4 bits per pixel */ { 0, 1, 2 }, /* 8 bits per pixel */ { ~0, 0, 1 }, /* 16 bits per pixel */ { ~0, ~0, 0 }, /* 24 bits per pixel */ { ~0, ~0, 0 } /* 32 bits per pixel */ }; /* * This array gives the answer to the question "what is the first index for * the answer array above given the number of bits per pixel?" * Note that ~0 is an invalid entry (mostly for the benefit of the reader). */ static int indexForBitsPerPixel[ 33 ] = { ~0, 0, ~0, ~0, /* 1 bit per pixel */ 1, ~0, ~0, ~0, /* 4 bits per pixel */ 2, ~0, ~0, ~0, /* 8 bits per pixel */ ~0,~0, ~0, ~0, 3, ~0, ~0, ~0, /* 16 bits per pixel */ ~0,~0, ~0, ~0, 4, ~0, ~0, ~0, /* 24 bits per pixel */ ~0,~0, ~0, ~0, 5 /* 32 bits per pixel */ }; /* * This array gives the answer to the question "what is the second index for * the answer array above given the number of bits per scanline pad unit?" * Note that ~0 is an invalid entry (mostly for the benefit of the reader). */ static int indexForScanlinePad[ 33 ] = { ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, 0, ~0, ~0, ~0, /* 8 bits per scanline pad unit */ ~0, ~0, ~0, ~0, 1, ~0, ~0, ~0, /* 16 bits per scanline pad unit */ ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, 2 /* 32 bits per scanline pad unit */ }; main(argc, argv) int argc; char *argv[]; { int i, j, k; long alwaysCheckForInput[2]; /* Notice if we're restart. Probably this is because we jumped through * uninitialized pointer */ if (restart) FatalError("server restarted. Jumped through uninitialized pointer?\n"); else restart = 1; /* These are needed by some routines which are called from interrupt * handlers, thus have no direct calling path back to main and thus * can't be passed argc, argv as parameters */ argcGlobal = argc; argvGlobal = argv; display = "0"; ProcessCommandLine(argc, argv); alwaysCheckForInput[0] = 0; alwaysCheckForInput[1] = 1; while(1) { serverGeneration++; ScreenSaverTime = defaultScreenSaverTime; ScreenSaverInterval = defaultScreenSaverInterval; ScreenSaverBlanking = defaultScreenSaverBlanking; ScreenSaverAllowExposures = defaultScreenSaverAllowExposures; InitBlockAndWakeupHandlers(); /* Perform any operating system dependent initializations you'd like */ OsInit(); if(serverGeneration == 1) { CreateWellKnownSockets(); InitProcVectors(); clients = (ClientPtr *)xalloc(MAXCLIENTS * sizeof(ClientPtr)); if (!clients) FatalError("couldn't create client array"); for (i=1; isequence = 0; serverClient->closeDownMode = RetainPermanent; serverClient->clientGone = FALSE; serverClient->lastDrawable = (DrawablePtr)NULL; serverClient->lastDrawableID = INVALID; serverClient->lastGC = (GCPtr)NULL; serverClient->lastGCID = INVALID; serverClient->numSaved = 0; serverClient->saveSet = (pointer *)NULL; serverClient->index = 0; serverClient->clientAsMask = (Mask)0; } else ResetWellKnownSockets (); clients[0] = serverClient; currentMaxClients = 1; if (!InitClientResources(serverClient)) /* for root resources */ FatalError("couldn't init server resources"); SetInputCheck(&alwaysCheckForInput[0], &alwaysCheckForInput[1]); screenInfo.arraySize = MAXSCREENS; screenInfo.numScreens = 0; WindowTable = (WindowPtr *)xalloc(MAXSCREENS * sizeof(WindowPtr)); if (!WindowTable) FatalError("couldn't create root window table"); /* * Just in case the ddx doesnt supply a format for depth 1 (like qvss). */ j = indexForBitsPerPixel[ 1 ]; k = indexForScanlinePad[ BITMAP_SCANLINE_PAD ]; PixmapWidthPaddingInfo[1].padRoundUp = BITMAP_SCANLINE_PAD-1; PixmapWidthPaddingInfo[1].padPixelsLog2 = answer[j][k]; j = indexForBitsPerPixel[8]; /* bits per byte */ PixmapWidthPaddingInfo[1].padBytesLog2 = answer[j][k]; InitAtoms(); InitEvents(); ResetScreenPrivates(); ResetWindowPrivates(); ResetGCPrivates(); InitOutput(&screenInfo, argc, argv); if (screenInfo.numScreens < 1) FatalError("no screens found"); InitExtensions(argc, argv); for (i = 0; i < screenInfo.numScreens; i++) { if (!CreateRootWindow(screenInfo.screens[i])) FatalError("failed to create root window"); } InitInput(argc, argv); if (InitAndStartDevices() != Success) FatalError("failed to initialize core devices"); if (SetDefaultFontPath(defaultFontPath) != Success) ErrorF("failed to set default font path '%s'", defaultFontPath); if (!SetDefaultFont(defaultTextFont)) FatalError("could not open default font '%s'", defaultTextFont); if (!(rootCursor = CreateRootCursor(defaultCursorFont, 0))) FatalError("could not open default cursor font '%s'", defaultCursorFont); for (i = 0; i < screenInfo.numScreens; i++) InitRootWindow(WindowTable[i]); DefineInitialRootWindow(WindowTable[0]); if (!CreateConnectionBlock()) FatalError("could not create connection block info"); Dispatch(); /* Now free up whatever must be freed */ CloseDownExtensions(); FreeAllResources(); CloseDownDevices(); for (i = screenInfo.numScreens - 1; i >= 0; i--) { FreeGCperDepth(i); FreeDefaultStipple(i); (* screenInfo.screens[i]->CloseScreen)(i, screenInfo.screens[i]); FreeScreen(screenInfo.screens[i]); screenInfo.numScreens = i; } xfree(WindowTable); CloseFont(defaultFont, (Font)0); defaultFont = (FontPtr)NULL; if (dispatchException & DE_TERMINATE) { ddxGiveUp(); break; } xfree(ConnectionInfo); } exit(0); } static int padlength[4] = {0, 3, 2, 1}; static Bool CreateConnectionBlock() { xConnSetup setup; xWindowRoot root; xDepth depth; xVisualType visual; xPixmapFormat format; unsigned long vid; int i, j, k, lenofblock, sizesofar = 0; char *pBuf; /* Leave off the ridBase and ridMask, these must be sent with connection */ setup.release = VENDOR_RELEASE; /* * per-server image and bitmap parameters are defined in Xmd.h */ setup.imageByteOrder = screenInfo.imageByteOrder; setup.bitmapScanlineUnit = screenInfo.bitmapScanlineUnit; setup.bitmapScanlinePad = screenInfo.bitmapScanlinePad; setup.bitmapBitOrder = screenInfo.bitmapBitOrder; setup.motionBufferSize = NumMotionEvents(); setup.numRoots = screenInfo.numScreens; setup.nbytesVendor = strlen(VENDOR_STRING); setup.numFormats = screenInfo.numPixmapFormats; setup.maxRequestSize = MAX_REQUEST_SIZE; QueryMinMaxKeyCodes(&setup.minKeyCode, &setup.maxKeyCode); lenofblock = sizeof(xConnSetup) + ((setup.nbytesVendor + 3) & ~3) + (setup.numFormats * sizeof(xPixmapFormat)) + (setup.numRoots * sizeof(xWindowRoot)); ConnectionInfo = (char *) xalloc(lenofblock); if (!ConnectionInfo) return FALSE; bcopy((char *)&setup, ConnectionInfo, sizeof(xConnSetup)); sizesofar = sizeof(xConnSetup); pBuf = ConnectionInfo + sizeof(xConnSetup); bcopy(VENDOR_STRING, pBuf, (int)setup.nbytesVendor); sizesofar += setup.nbytesVendor; pBuf += setup.nbytesVendor; i = padlength[setup.nbytesVendor & 3]; sizesofar += i; while (--i >= 0) *pBuf++ = 0; for (i=0; idrawable.id; root.defaultColormap = pScreen->defColormap; root.whitePixel = pScreen->whitePixel; root.blackPixel = pScreen->blackPixel; root.currentInputMask = 0; /* filled in when sent */ root.pixWidth = pScreen->width; root.pixHeight = pScreen->height; root.mmWidth = pScreen->mmWidth; root.mmHeight = pScreen->mmHeight; root.minInstalledMaps = pScreen->minInstalledCmaps; root.maxInstalledMaps = pScreen->maxInstalledCmaps; root.rootVisualID = pScreen->rootVisual; root.backingStore = pScreen->backingStoreSupport; root.saveUnders = pScreen->saveUnderSupport != NotUseful; root.rootDepth = pScreen->rootDepth; root.nDepths = pScreen->numDepths; bcopy((char *)&root, pBuf, sizeof(xWindowRoot)); sizesofar += sizeof(xWindowRoot); pBuf += sizeof(xWindowRoot); pDepth = pScreen->allowedDepths; for(j = 0; j < pScreen->numDepths; j++, pDepth++) { lenofblock += sizeof(xDepth) + (pDepth->numVids * sizeof(xVisualType)); pBuf = (char *)xrealloc(ConnectionInfo, lenofblock); if (!pBuf) { xfree(ConnectionInfo); return FALSE; } ConnectionInfo = pBuf; pBuf += sizesofar; depth.depth = pDepth->depth; depth.nVisuals = pDepth->numVids; bcopy((char *)&depth, pBuf, sizeof(xDepth)); pBuf += sizeof(xDepth); sizesofar += sizeof(xDepth); for(k = 0; k < pDepth->numVids; k++) { vid = pDepth->vids[k]; for (pVisual = pScreen->visuals; pVisual->vid != vid; pVisual++) ; visual.visualID = vid; visual.class = pVisual->class; visual.bitsPerRGB = pVisual->bitsPerRGBValue; visual.colormapEntries = pVisual->ColormapEntries; visual.redMask = pVisual->redMask; visual.greenMask = pVisual->greenMask; visual.blueMask = pVisual->blueMask; bcopy((char *)&visual, pBuf, sizeof(xVisualType)); pBuf += sizeof(xVisualType); sizesofar += sizeof(xVisualType); } } } connSetupPrefix.success = xTrue; connSetupPrefix.length = lenofblock/4; connSetupPrefix.majorVersion = X_PROTOCOL; connSetupPrefix.minorVersion = X_PROTOCOL_REVISION; return TRUE; } static int screenPrivateCount; static void ResetScreenPrivates() { screenPrivateCount = 0; } /* this can be called after some screens have been created, * so we have to worry about resizing existing devPrivates */ int AllocateScreenPrivateIndex() { int index; int i; ScreenPtr pScreen; DevUnion *nprivs; index = screenPrivateCount++; for (i = 0; i < screenInfo.numScreens; i++) { pScreen = screenInfo.screens[i]; nprivs = (DevUnion *)xrealloc(pScreen->devPrivates, screenPrivateCount * sizeof(DevUnion)); if (!nprivs) { screenPrivateCount--; return -1; } pScreen->devPrivates = nprivs; } return index; } Bool AllocateWindowPrivate(pScreen, index, amount) register ScreenPtr pScreen; int index; unsigned amount; { unsigned oldamount; if (index >= pScreen->WindowPrivateLen) { unsigned *nsizes; nsizes = (unsigned *)xrealloc(pScreen->WindowPrivateSizes, (index + 1) * sizeof(unsigned)); if (!nsizes) return FALSE; while (pScreen->WindowPrivateLen <= index) { nsizes[pScreen->WindowPrivateLen++] = 0; pScreen->totalWindowSize += sizeof(DevUnion); } pScreen->WindowPrivateSizes = nsizes; } oldamount = pScreen->WindowPrivateSizes[index]; if (amount > oldamount) { pScreen->WindowPrivateSizes[index] = amount; pScreen->totalWindowSize += (amount - oldamount); } return TRUE; } Bool AllocateGCPrivate(pScreen, index, amount) register ScreenPtr pScreen; int index; unsigned amount; { unsigned oldamount; if (index >= pScreen->GCPrivateLen) { unsigned *nsizes; nsizes = (unsigned *)xrealloc(pScreen->GCPrivateSizes, (index + 1) * sizeof(unsigned)); if (!nsizes) return FALSE; while (pScreen->GCPrivateLen <= index) { nsizes[pScreen->GCPrivateLen++] = 0; pScreen->totalGCSize += sizeof(DevUnion); } pScreen->GCPrivateSizes = nsizes; } oldamount = pScreen->GCPrivateSizes[index]; if (amount > oldamount) { pScreen->GCPrivateSizes[index] = amount; pScreen->totalGCSize += (amount - oldamount); } return TRUE; } /* grow the array of screenRecs if necessary. call the device-supplied initialization procedure with its screen number, a pointer to its ScreenRec, argc, and argv. return the number of successfully installed screens. */ int AddScreen(pfnInit, argc, argv) Bool (* pfnInit)(); int argc; char **argv; { int i; int scanlinepad, format, depth, bitsPerPixel, j, k; ScreenPtr pScreen; #ifdef DEBUG void (**jNI) (); #endif /* DEBUG */ i = screenInfo.numScreens; if (i == MAXSCREENS) return -1; pScreen = (ScreenPtr) xalloc(sizeof(ScreenRec)); if (!pScreen) return -1; pScreen->devPrivates = (DevUnion *)xalloc(screenPrivateCount * sizeof(DevUnion)); if (!pScreen->devPrivates && screenPrivateCount) { xfree(pScreen); return -1; } pScreen->myNum = i; pScreen->WindowPrivateLen = 0; pScreen->WindowPrivateSizes = (unsigned *)NULL; pScreen->totalWindowSize = sizeof(WindowRec); pScreen->GCPrivateLen = 0; pScreen->GCPrivateSizes = (unsigned *)NULL; pScreen->totalGCSize = sizeof(GC); #ifdef DEBUG for (jNI = &pScreen->QueryBestSize; jNI < (void (**) ()) &pScreen->SendGraphicsExpose; jNI++) *jNI = NotImplemented; #endif /* DEBUG */ /* * This loop gets run once for every Screen that gets added, * but thats ok. If the ddx layer initializes the formats * one at a time calling AddScreen() after each, then each * iteration will make it a little more accurate. Worst case * we do this loop N * numPixmapFormats where N is # of screens. * Anyway, this must be called after InitOutput and before the * screen init routine is called. */ for (format=0; formatrgf = ~0L; /* there are no scratch GCs yet*/ WindowTable[i] = NullWindow; screenInfo.screens[i] = pScreen; screenInfo.numScreens++; if ((*pfnInit)(i, pScreen, argc, argv)) { if (CreateGCperDepth(i)) { if (CreateDefaultStipple(i)) return i; FreeGCperDepth(i); } FreeResource(WindowTable[i]->drawable.id, RT_NONE); } FreeScreen(pScreen); screenInfo.numScreens--; return -1; } static void FreeScreen(pScreen) ScreenPtr pScreen; { xfree(pScreen->WindowPrivateSizes); xfree(pScreen->GCPrivateSizes); xfree(pScreen->devPrivates); xfree(pScreen); }