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Diffstat (limited to 'kpdf/xpdf/xpdf/UnicodeMap.cc')
| -rw-r--r-- | kpdf/xpdf/xpdf/UnicodeMap.cc | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/kpdf/xpdf/xpdf/UnicodeMap.cc b/kpdf/xpdf/xpdf/UnicodeMap.cc deleted file mode 100644 index 2b8cb1f7..00000000 --- a/kpdf/xpdf/xpdf/UnicodeMap.cc +++ /dev/null @@ -1,293 +0,0 @@ -//======================================================================== -// -// UnicodeMap.cc -// -// Copyright 2001-2003 Glyph & Cog, LLC -// -//======================================================================== - -#include <aconf.h> - -#ifdef USE_GCC_PRAGMAS -#pragma implementation -#endif - -#include <stdio.h> -#include <string.h> -#include "gmem.h" -#include "gfile.h" -#include "GString.h" -#include "GList.h" -#include "Error.h" -#include "GlobalParams.h" -#include "UnicodeMap.h" - -//------------------------------------------------------------------------ - -#define maxExtCode 16 - -struct UnicodeMapExt { - Unicode u; // Unicode char - char code[maxExtCode]; - Guint nBytes; -}; - -//------------------------------------------------------------------------ - -UnicodeMap *UnicodeMap::parse(GString *encodingNameA) { - FILE *f; - UnicodeMap *map; - UnicodeMapRange *range; - UnicodeMapExt *eMap; - int size, eMapsSize; - char buf[256]; - int line, nBytes, i, x; - char *tok1, *tok2, *tok3; - - if (!(f = globalParams->getUnicodeMapFile(encodingNameA))) { - error(-1, "Couldn't find unicodeMap file for the '%s' encoding", - encodingNameA->getCString()); - return NULL; - } - - map = new UnicodeMap(encodingNameA->copy()); - - size = 8; - map->ranges = (UnicodeMapRange *)gmallocn(size, sizeof(UnicodeMapRange)); - eMapsSize = 0; - - line = 1; - while (getLine(buf, sizeof(buf), f)) { - if ((tok1 = strtok(buf, " \t\r\n")) && - (tok2 = strtok(NULL, " \t\r\n"))) { - if (!(tok3 = strtok(NULL, " \t\r\n"))) { - tok3 = tok2; - tok2 = tok1; - } - nBytes = strlen(tok3) / 2; - if (nBytes <= 4) { - if (map->len == size) { - size *= 2; - map->ranges = (UnicodeMapRange *) - greallocn(map->ranges, size, sizeof(UnicodeMapRange)); - } - range = &map->ranges[map->len]; - sscanf(tok1, "%x", &range->start); - sscanf(tok2, "%x", &range->end); - sscanf(tok3, "%x", &range->code); - range->nBytes = nBytes; - ++map->len; - } else if (tok2 == tok1) { - if (map->eMapsLen == eMapsSize) { - eMapsSize += 16; - map->eMaps = (UnicodeMapExt *) - greallocn(map->eMaps, eMapsSize, sizeof(UnicodeMapExt)); - } - eMap = &map->eMaps[map->eMapsLen]; - sscanf(tok1, "%x", &eMap->u); - for (i = 0; i < nBytes; ++i) { - sscanf(tok3 + i*2, "%2x", &x); - eMap->code[i] = (char)x; - } - eMap->nBytes = nBytes; - ++map->eMapsLen; - } else { - error(-1, "Bad line (%d) in unicodeMap file for the '%s' encoding", - line, encodingNameA->getCString()); - } - } else { - error(-1, "Bad line (%d) in unicodeMap file for the '%s' encoding", - line, encodingNameA->getCString()); - } - ++line; - } - - fclose(f); - - return map; -} - -UnicodeMap::UnicodeMap(GString *encodingNameA) { - encodingName = encodingNameA; - unicodeOut = gFalse; - kind = unicodeMapUser; - ranges = NULL; - len = 0; - eMaps = NULL; - eMapsLen = 0; - refCnt = 1; -#if MULTITHREADED - gInitMutex(&mutex); -#endif -} - -UnicodeMap::UnicodeMap(char *encodingNameA, GBool unicodeOutA, - UnicodeMapRange *rangesA, int lenA) { - encodingName = new GString(encodingNameA); - unicodeOut = unicodeOutA; - kind = unicodeMapResident; - ranges = rangesA; - len = lenA; - eMaps = NULL; - eMapsLen = 0; - refCnt = 1; -#if MULTITHREADED - gInitMutex(&mutex); -#endif -} - -UnicodeMap::UnicodeMap(char *encodingNameA, GBool unicodeOutA, - UnicodeMapFunc funcA) { - encodingName = new GString(encodingNameA); - unicodeOut = unicodeOutA; - kind = unicodeMapFunc; - func = funcA; - eMaps = NULL; - eMapsLen = 0; - refCnt = 1; -#if MULTITHREADED - gInitMutex(&mutex); -#endif -} - -UnicodeMap::~UnicodeMap() { - delete encodingName; - if (kind == unicodeMapUser && ranges) { - gfree(ranges); - } - if (eMaps) { - gfree(eMaps); - } -#if MULTITHREADED - gDestroyMutex(&mutex); -#endif -} - -void UnicodeMap::incRefCnt() { -#if MULTITHREADED - gLockMutex(&mutex); -#endif - ++refCnt; -#if MULTITHREADED - gUnlockMutex(&mutex); -#endif -} - -void UnicodeMap::decRefCnt() { - GBool done; - -#if MULTITHREADED - gLockMutex(&mutex); -#endif - done = --refCnt == 0; -#if MULTITHREADED - gUnlockMutex(&mutex); -#endif - if (done) { - delete this; - } -} - -GBool UnicodeMap::match(GString *encodingNameA) { - return !encodingName->cmp(encodingNameA); -} - -int UnicodeMap::mapUnicode(Unicode u, char *buf, int bufSize) { - int a, b, m, n, i, j; - Guint code; - - if (kind == unicodeMapFunc) { - return (*func)(u, buf, bufSize); - } - - a = 0; - b = len; - if (u >= ranges[a].start) { - // invariant: ranges[a].start <= u < ranges[b].start - while (b - a > 1) { - m = (a + b) / 2; - if (u >= ranges[m].start) { - a = m; - } else if (u < ranges[m].start) { - b = m; - } - } - if (u <= ranges[a].end) { - n = ranges[a].nBytes; - if (n > bufSize) { - return 0; - } - code = ranges[a].code + (u - ranges[a].start); - for (i = n - 1; i >= 0; --i) { - buf[i] = (char)(code & 0xff); - code >>= 8; - } - return n; - } - } - - for (i = 0; i < eMapsLen; ++i) { - if (eMaps[i].u == u) { - n = eMaps[i].nBytes; - for (j = 0; j < n; ++j) { - buf[j] = eMaps[i].code[j]; - } - return n; - } - } - - return 0; -} - -//------------------------------------------------------------------------ - -UnicodeMapCache::UnicodeMapCache() { - int i; - - for (i = 0; i < unicodeMapCacheSize; ++i) { - cache[i] = NULL; - } -} - -UnicodeMapCache::~UnicodeMapCache() { - int i; - - for (i = 0; i < unicodeMapCacheSize; ++i) { - if (cache[i]) { - cache[i]->decRefCnt(); - } - } -} - -UnicodeMap *UnicodeMapCache::getUnicodeMap(GString *encodingName) { - UnicodeMap *map; - int i, j; - - if (cache[0] && cache[0]->match(encodingName)) { - cache[0]->incRefCnt(); - return cache[0]; - } - for (i = 1; i < unicodeMapCacheSize; ++i) { - if (cache[i] && cache[i]->match(encodingName)) { - map = cache[i]; - for (j = i; j >= 1; --j) { - cache[j] = cache[j - 1]; - } - cache[0] = map; - map->incRefCnt(); - return map; - } - } - if ((map = UnicodeMap::parse(encodingName))) { - if (cache[unicodeMapCacheSize - 1]) { - cache[unicodeMapCacheSize - 1]->decRefCnt(); - } - for (j = unicodeMapCacheSize - 1; j >= 1; --j) { - cache[j] = cache[j - 1]; - } - cache[0] = map; - map->incRefCnt(); - return map; - } - return NULL; -} |