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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/dix/atom.c | |
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Checked in the following released items:
xkeyboard-config-1.4.tar.gz
ttf-bitstream-vera-1.10.tar.gz
font-alias-1.0.1.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sony-misc-1.0.0.tar.gz
font-schumacher-misc-1.0.0.tar.gz
font-mutt-misc-1.0.0.tar.gz
font-misc-misc-1.0.0.tar.gz
font-misc-meltho-1.0.0.tar.gz
font-micro-misc-1.0.0.tar.gz
font-jis-misc-1.0.0.tar.gz
font-isas-misc-1.0.0.tar.gz
font-dec-misc-1.0.0.tar.gz
font-daewoo-misc-1.0.0.tar.gz
font-cursor-misc-1.0.0.tar.gz
font-arabic-misc-1.0.0.tar.gz
font-winitzki-cyrillic-1.0.0.tar.gz
font-misc-cyrillic-1.0.0.tar.gz
font-cronyx-cyrillic-1.0.0.tar.gz
font-screen-cyrillic-1.0.1.tar.gz
font-xfree86-type1-1.0.1.tar.gz
font-adobe-utopia-type1-1.0.1.tar.gz
font-ibm-type1-1.0.0.tar.gz
font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
font-bitstream-100dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz
font-bh-100dpi-1.0.0.tar.gz
font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
font-bh-75dpi-1.0.0.tar.gz
bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'xorg-server/dix/atom.c')
-rw-r--r-- | xorg-server/dix/atom.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/xorg-server/dix/atom.c b/xorg-server/dix/atom.c new file mode 100644 index 000000000..c968c1e5a --- /dev/null +++ b/xorg-server/dix/atom.c @@ -0,0 +1,211 @@ +/*********************************************************** + +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. + +******************************************************************/ + + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <X11/X.h> +#include <X11/Xatom.h> +#include <stdio.h> +#include <string.h> +#include "misc.h" +#include "resource.h" +#include "dix.h" + +#define InitialTableSize 100 + +typedef struct _Node { + struct _Node *left, *right; + Atom a; + unsigned int fingerPrint; + char *string; +} NodeRec, *NodePtr; + +static Atom lastAtom = None; +static NodePtr atomRoot = (NodePtr)NULL; +static unsigned long tableLength; +static NodePtr *nodeTable; + +void FreeAtom(NodePtr patom); + +_X_EXPORT Atom +MakeAtom(char *string, unsigned len, Bool makeit) +{ + NodePtr * np; + unsigned i; + int comp; + unsigned int fp = 0; + + np = &atomRoot; + for (i = 0; i < (len+1)/2; i++) + { + fp = fp * 27 + string[i]; + fp = fp * 27 + string[len - 1 - i]; + } + while (*np != (NodePtr) NULL) + { + if (fp < (*np)->fingerPrint) + np = &((*np)->left); + else if (fp > (*np)->fingerPrint) + np = &((*np)->right); + else + { /* now start testing the strings */ + comp = strncmp(string, (*np)->string, (int)len); + if ((comp < 0) || ((comp == 0) && (len < strlen((*np)->string)))) + np = &((*np)->left); + else if (comp > 0) + np = &((*np)->right); + else + return(*np)->a; + } + } + if (makeit) + { + NodePtr nd; + + nd = (NodePtr) xalloc(sizeof(NodeRec)); + if (!nd) + return BAD_RESOURCE; + if (lastAtom < XA_LAST_PREDEFINED) + { + nd->string = string; + } + else + { + nd->string = (char *) xalloc(len + 1); + if (!nd->string) { + xfree(nd); + return BAD_RESOURCE; + } + strncpy(nd->string, string, (int)len); + nd->string[len] = 0; + } + if ((lastAtom + 1) >= tableLength) { + NodePtr *table; + + table = (NodePtr *) xrealloc(nodeTable, + tableLength * (2 * sizeof(NodePtr))); + if (!table) { + if (nd->string != string) + xfree(nd->string); + xfree(nd); + return BAD_RESOURCE; + } + tableLength <<= 1; + nodeTable = table; + } + *np = nd; + nd->left = nd->right = (NodePtr) NULL; + nd->fingerPrint = fp; + nd->a = (++lastAtom); + *(nodeTable+lastAtom) = nd; + return nd->a; + } + else + return None; +} + +_X_EXPORT Bool +ValidAtom(Atom atom) +{ + return (atom != None) && (atom <= lastAtom); +} + +_X_EXPORT char * +NameForAtom(Atom atom) +{ + NodePtr node; + if (atom > lastAtom) return 0; + if ((node = nodeTable[atom]) == (NodePtr)NULL) return 0; + return node->string; +} + +void +AtomError(void) +{ + FatalError("initializing atoms"); +} + +void +FreeAtom(NodePtr patom) +{ + if(patom->left) + FreeAtom(patom->left); + if(patom->right) + FreeAtom(patom->right); + if (patom->a > XA_LAST_PREDEFINED) + xfree(patom->string); + xfree(patom); +} + +void +FreeAllAtoms(void) +{ + if(atomRoot == (NodePtr)NULL) + return; + FreeAtom(atomRoot); + atomRoot = (NodePtr)NULL; + xfree(nodeTable); + nodeTable = (NodePtr *)NULL; + lastAtom = None; +} + +void +InitAtoms(void) +{ + FreeAllAtoms(); + tableLength = InitialTableSize; + nodeTable = (NodePtr *)xalloc(InitialTableSize*sizeof(NodePtr)); + if (!nodeTable) + AtomError(); + nodeTable[None] = (NodePtr)NULL; + MakePredeclaredAtoms(); + if (lastAtom != XA_LAST_PREDEFINED) + AtomError (); +} |