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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 /libXfont/src/util/atom.c | |
download | vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.gz vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.bz2 vcxsrv-3562e78743202e43aec8727005182a2558117eca.zip |
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 'libXfont/src/util/atom.c')
-rw-r--r-- | libXfont/src/util/atom.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/libXfont/src/util/atom.c b/libXfont/src/util/atom.c new file mode 100644 index 000000000..b770dc9de --- /dev/null +++ b/libXfont/src/util/atom.c @@ -0,0 +1,246 @@ +/* $Xorg: atom.c,v 1.5 2001/02/09 02:04:04 xorgcvs Exp $ */ + +/* + +Copyright 1990, 1994, 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. + +*/ +/* $XFree86: xc/lib/font/util/atom.c,v 1.9 2002/09/19 13:22:00 tsi Exp $ */ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +/* lame atom replacement routines for font applications */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <X11/fonts/fontmisc.h> +#include "stubs.h" + +typedef struct _AtomList { + char *name; + int len; + int hash; + Atom atom; +} AtomListRec, *AtomListPtr; + +static AtomListPtr *hashTable; + +static int hashSize, hashUsed; +static int hashMask; +static int rehash; + +static AtomListPtr *reverseMap; +static int reverseMapSize; +static Atom lastAtom; + +static int +Hash(char *string, int len) +{ + int h; + + h = 0; + while (len--) + h = (h << 3) ^ *string++; + if (h < 0) + return -h; + return h; +} + +static int +ResizeHashTable (void) +{ + int newHashSize; + int newHashMask; + AtomListPtr *newHashTable; + int i; + int h; + int newRehash; + int r; + + if (hashSize == 0) + newHashSize = 1024; + else + newHashSize = hashSize * 2; + newHashTable = (AtomListPtr *) xalloc (newHashSize * sizeof (AtomListPtr)); + if (!newHashTable) { + fprintf(stderr, "ResizeHashTable(): Error: Couldn't allocate" + " newHashTable (%ld)\n", + newHashSize * (unsigned long)sizeof (AtomListPtr)); + return FALSE; + } + bzero ((char *) newHashTable, newHashSize * sizeof (AtomListPtr)); + newHashMask = newHashSize - 1; + newRehash = (newHashMask - 2); + for (i = 0; i < hashSize; i++) + { + if (hashTable[i]) + { + h = (hashTable[i]->hash) & newHashMask; + if (newHashTable[h]) + { + r = hashTable[i]->hash % newRehash | 1; + do { + h += r; + if (h >= newHashSize) + h -= newHashSize; + } while (newHashTable[h]); + } + newHashTable[h] = hashTable[i]; + } + } + xfree (hashTable); + hashTable = newHashTable; + hashSize = newHashSize; + hashMask = newHashMask; + rehash = newRehash; + return TRUE; +} + +static int +ResizeReverseMap (void) +{ + int ret = TRUE; + if (reverseMapSize == 0) + reverseMapSize = 1000; + else + reverseMapSize *= 2; + reverseMap = (AtomListPtr *) xrealloc (reverseMap, reverseMapSize * sizeof (AtomListPtr)); + if (!reverseMap) { + fprintf(stderr, "ResizeReverseMap(): Error: Couldn't reallocate" + " reverseMap (%ld)\n", + reverseMapSize * (unsigned long)sizeof(AtomListPtr)); + ret = FALSE; + } + return ret; +} + +static int +NameEqual (const char *a, const char *b, int l) +{ + while (l--) + if (*a++ != *b++) + return FALSE; + return TRUE; +} + +#ifdef __SUNPRO_C +#pragma weak MakeAtom +#endif + +weak Atom +MakeAtom(char *string, unsigned len, int makeit) +{ + AtomListPtr a; + int hash; + int h = 0; + int r; + + hash = Hash (string, len); + if (hashTable) + { + h = hash & hashMask; + if (hashTable[h]) + { + if (hashTable[h]->hash == hash && hashTable[h]->len == len && + NameEqual (hashTable[h]->name, string, len)) + { + return hashTable[h]->atom; + } + r = (hash % rehash) | 1; + for (;;) + { + h += r; + if (h >= hashSize) + h -= hashSize; + if (!hashTable[h]) + break; + if (hashTable[h]->hash == hash && hashTable[h]->len == len && + NameEqual (hashTable[h]->name, string, len)) + { + return hashTable[h]->atom; + } + } + } + } + if (!makeit) + return None; + a = (AtomListPtr) xalloc (sizeof (AtomListRec) + len + 1); + if (a == NULL) { + fprintf(stderr, "MakeAtom(): Error: Couldn't allocate AtomListRec" + " (%ld)\n", (unsigned long)sizeof (AtomListRec) + len + 1); + return None; + } + a->name = (char *) (a + 1); + a->len = len; + strncpy (a->name, string, len); + a->name[len] = '\0'; + a->atom = ++lastAtom; + a->hash = hash; + if (hashUsed >= hashSize / 2) + { + ResizeHashTable (); + h = hash & hashMask; + if (hashTable[h]) + { + r = (hash % rehash) | 1; + do { + h += r; + if (h >= hashSize) + h -= hashSize; + } while (hashTable[h]); + } + } + hashTable[h] = a; + hashUsed++; + if (reverseMapSize <= a->atom) { + if (!ResizeReverseMap()) + return None; + } + reverseMap[a->atom] = a; + return a->atom; +} + +#ifdef __SUNPRO_C +#pragma weak ValidAtom +#endif + +weak int +ValidAtom(Atom atom) +{ + return (atom != None) && (atom <= lastAtom); +} + +#ifdef __SUNPRO_C +#pragma weak NameForAtom +#endif + +weak char * +NameForAtom(Atom atom) +{ + if (atom != None && atom <= lastAtom) + return reverseMap[atom]->name; + return NULL; +} |