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Diffstat (limited to 'dix/privates.c')
| -rw-r--r-- | dix/privates.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/dix/privates.c b/dix/privates.c new file mode 100644 index 000000000..a252dbce9 --- /dev/null +++ b/dix/privates.c @@ -0,0 +1,351 @@ +/* $Xorg: privates.c,v 1.4 2001/02/09 02:04:40 xorgcvs Exp $ */ +/* + +Copyright 1993, 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. + +*/ + +#include "X.h" +#include "scrnintstr.h" +#include "misc.h" +#include "os.h" +#include "windowstr.h" +#include "resource.h" +#include "dixstruct.h" +#include "gcstruct.h" +#include "colormapst.h" +#include "servermd.h" +#include "site.h" + +/* + * See the Wrappers and devPrivates section in "Definition of the + * Porting Layer for the X v11 Sample Server" (doc/Server/ddx.tbl.ms) + * for information on how to use devPrivates. + */ + +/* + * client private machinery + */ + +static int clientPrivateCount; +int clientPrivateLen; +unsigned *clientPrivateSizes; +unsigned totalClientSize; + +void +ResetClientPrivates() +{ + clientPrivateCount = 0; + clientPrivateLen = 0; + xfree(clientPrivateSizes); + clientPrivateSizes = (unsigned *)NULL; + totalClientSize = sizeof(ClientRec); + +} + +int +AllocateClientPrivateIndex() +{ + return clientPrivateCount++; +} + +Bool +AllocateClientPrivate(index, amount) + int index; + unsigned amount; +{ + unsigned oldamount; + + if (index >= clientPrivateLen) + { + unsigned *nsizes; + nsizes = (unsigned *)xrealloc(clientPrivateSizes, + (index + 1) * sizeof(unsigned)); + if (!nsizes) + return FALSE; + while (clientPrivateLen <= index) + { + nsizes[clientPrivateLen++] = 0; + totalClientSize += sizeof(DevUnion); + } + clientPrivateSizes = nsizes; + } + oldamount = clientPrivateSizes[index]; + if (amount > oldamount) + { + clientPrivateSizes[index] = amount; + totalClientSize += (amount - oldamount); + } + return TRUE; +} + +/* + * screen private machinery + */ + +int screenPrivateCount; + +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; +} + + +/* + * window private machinery + */ + +static int windowPrivateCount; + +void +ResetWindowPrivates() +{ + windowPrivateCount = 0; +} + +int +AllocateWindowPrivateIndex() +{ + return windowPrivateCount++; +} + +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; +} + + +/* + * gc private machinery + */ + +static int gcPrivateCount; + +void +ResetGCPrivates() +{ + gcPrivateCount = 0; +} + +int +AllocateGCPrivateIndex() +{ + return gcPrivateCount++; +} + +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; +} + + +/* + * pixmap private machinery + */ +#ifdef PIXPRIV +static int pixmapPrivateCount; + +void +ResetPixmapPrivates() +{ + pixmapPrivateCount = 0; +} + +int +AllocatePixmapPrivateIndex() +{ + return pixmapPrivateCount++; +} + +Bool +AllocatePixmapPrivate(pScreen, index, amount) + register ScreenPtr pScreen; + int index; + unsigned amount; +{ + unsigned oldamount; + + if (index >= pScreen->PixmapPrivateLen) + { + unsigned *nsizes; + nsizes = (unsigned *)xrealloc(pScreen->PixmapPrivateSizes, + (index + 1) * sizeof(unsigned)); + if (!nsizes) + return FALSE; + while (pScreen->PixmapPrivateLen <= index) + { + nsizes[pScreen->PixmapPrivateLen++] = 0; + pScreen->totalPixmapSize += sizeof(DevUnion); + } + pScreen->PixmapPrivateSizes = nsizes; + } + oldamount = pScreen->PixmapPrivateSizes[index]; + if (amount > oldamount) + { + pScreen->PixmapPrivateSizes[index] = amount; + pScreen->totalPixmapSize += (amount - oldamount); + } + return TRUE; +} +#endif + + +/* + * colormap private machinery + */ + +int colormapPrivateCount; + +void +ResetColormapPrivates() +{ + colormapPrivateCount = 0; +} + + +int +AllocateColormapPrivateIndex (initPrivFunc) + +InitCmapPrivFunc initPrivFunc; + +{ + int index; + int i; + ColormapPtr pColormap; + DevUnion *privs; + + index = colormapPrivateCount++; + + for (i = 0; i < screenInfo.numScreens; i++) + { + /* + * AllocateColormapPrivateIndex may be called after the + * default colormap has been created on each screen! + * + * We must resize the devPrivates array for the default + * colormap on each screen, making room for this new private. + * We also call the initialization function 'initPrivFunc' on + * the new private allocated for each default colormap. + */ + + ScreenPtr pScreen = screenInfo.screens[i]; + + pColormap = (ColormapPtr) LookupIDByType ( + pScreen->defColormap, RT_COLORMAP); + + privs = (DevUnion *) xrealloc (pColormap->devPrivates, + colormapPrivateCount * sizeof(DevUnion)); + + pColormap->devPrivates = privs; + + if (!privs || !(*initPrivFunc)(pColormap)) + { + colormapPrivateCount--; + return -1; + } + } + + return index; +} |