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git://xwords.git.sourceforge.net/gitroot/xwords/xwords
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377 lines
11 KiB
C
377 lines
11 KiB
C
/* -*-mode: C; fill-column: 78; c-basic-offset: 4;-*- */
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/*
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* Copyright 1997-2002 by Eric House (fixin@peak.org). All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef CLIENT_ONLY /* there's an else in the middle!!! */
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#include <stdio.h>
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#include <stdlib.h>
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/* #include <prc.h> */
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#include "comtypes.h"
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#include "dictnryp.h"
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#include "linuxmain.h"
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typedef struct DictStart {
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XP_U32 numNodes;
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/* XP_U32 indexStart; */
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array_edge* array;
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} DictStart;
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typedef struct LinuxDictionaryCtxt {
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DictionaryCtxt super;
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/* prc_t* pt; */
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/* DictStart* starts; */
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/* XP_U16 numStarts; */
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} LinuxDictionaryCtxt;
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/************************ Prototypes ***********************/
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static XP_Bool initFromDictFile( LinuxDictionaryCtxt* dctx, char* fileName );
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static void linux_dictionary_destroy( DictionaryCtxt* dict );
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/*****************************************************************************
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*
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****************************************************************************/
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DictionaryCtxt*
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linux_dictionary_make( MPFORMAL char* dictFileName )
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{
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LinuxDictionaryCtxt* result =
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(LinuxDictionaryCtxt*)XP_MALLOC(mpool, sizeof(*result));
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XP_MEMSET( result, 0, sizeof(*result) );
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dict_super_init( (DictionaryCtxt*)result );
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MPASSIGN(result->super.mpool, mpool);
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if ( !!dictFileName ) {
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XP_Bool success = initFromDictFile( result, dictFileName );
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if ( success ) {
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result->super.destructor = linux_dictionary_destroy;
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setBlankTile( &result->super );
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} else {
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XP_FREE( mpool, result );
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result = NULL;
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}
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}
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return (DictionaryCtxt*)result;
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} /* gtk_dictionary_make */
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static XP_U16
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countSpecials( LinuxDictionaryCtxt* ctxt )
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{
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XP_U16 result = 0;
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XP_U16 i;
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for ( i = 0; i < ctxt->super.nFaces; ++i ) {
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if ( IS_SPECIAL(ctxt->super.faces16[i] ) ) {
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++result;
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}
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}
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return result;
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} /* countSpecials */
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static XP_Bitmap
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skipBitmap( LinuxDictionaryCtxt* ctxt, FILE* dictF )
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{
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XP_U8 nCols, nRows, nBytes;
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LinuxBMStruct* lbs = NULL;
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(void)fread( &nCols, sizeof(nCols), 1, dictF );
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if ( nCols > 0 ) {
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(void)fread( &nRows, sizeof(nRows), 1, dictF );
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nBytes = ((nRows * nCols) + 7) / 8;
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lbs = XP_MALLOC( ctxt->super.mpool, sizeof(*lbs) + nBytes );
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lbs->nRows = nRows;
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lbs->nCols = nCols;
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lbs->nBytes = nBytes;
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(void)fread( lbs + 1, nBytes, 1, dictF );
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}
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return lbs;
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} /* skipBitmap */
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static void
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skipBitmaps( LinuxDictionaryCtxt* ctxt, FILE* dictF )
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{
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XP_U16 nSpecials;
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XP_UCHAR* text;
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XP_UCHAR** texts;
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SpecialBitmaps* bitmaps;
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Tile tile;
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nSpecials = countSpecials( ctxt );
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texts = (XP_UCHAR**)XP_MALLOC( ctxt->super.mpool,
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nSpecials * sizeof(*texts) );
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bitmaps = (SpecialBitmaps*)XP_MALLOC( ctxt->super.mpool,
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nSpecials * sizeof(*bitmaps) );
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for ( tile = 0; tile < ctxt->super.nFaces; ++tile ) {
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XP_CHAR16 face = ctxt->super.faces16[(short)tile];
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if ( IS_SPECIAL(face) ) {
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XP_U8 txtlen;
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XP_ASSERT( face < nSpecials );
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/* get the string */
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(void)fread( &txtlen, sizeof(txtlen), 1, dictF );
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text = (XP_UCHAR*)XP_MALLOC(ctxt->super.mpool, txtlen+1);
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(void)fread( text, txtlen, 1, dictF );
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text[txtlen] = '\0';
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texts[face] = text;
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XP_DEBUGF( "skipping bitmaps for %s", texts[face] );
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bitmaps[face].largeBM = skipBitmap( ctxt, dictF );
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bitmaps[face].smallBM = skipBitmap( ctxt, dictF );
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}
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}
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ctxt->super.chars = texts;
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ctxt->super.bitmaps = bitmaps;
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} /* skipBitmaps */
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static XP_Bool
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initFromDictFile( LinuxDictionaryCtxt* dctx, char* fileName )
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{
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XP_Bool formatOk = XP_TRUE;
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XP_U8 numFaces;
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long curPos, dictLength;
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XP_U32 topOffset;
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FILE* dictF = fopen( fileName, "r" );
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unsigned short xloc;
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XP_U16 flags;
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XP_U16 facesSize;
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XP_U16 charSize;
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XP_ASSERT( dictF );
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(void)fread( &flags, sizeof(flags), 1, dictF );
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flags = ntohs(flags);
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XP_DEBUGF( "flags=0x%x", flags );
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#ifdef NODE_CAN_4
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if ( flags == 0x0001 ) {
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dctx->super.nodeSize = 3;
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charSize = 1;
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dctx->super.is_4_byte = XP_FALSE;
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} else if ( flags == 0x0002 ) {
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dctx->super.nodeSize = 3;
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charSize = 2;
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dctx->super.is_4_byte = XP_FALSE;
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} else if ( flags == 0x0003 ) {
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dctx->super.nodeSize = 4;
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charSize = 2;
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dctx->super.is_4_byte = XP_TRUE;
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} else {
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/* case I don't know how to deal with */
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formatOk = XP_FALSE;
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XP_ASSERT(0);
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}
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#else
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XP_ASSERT( flags == 0x0001 );
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#endif
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if ( formatOk ) {
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(void)fread( &numFaces, sizeof(numFaces), 1, dictF );
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dctx->super.nFaces = numFaces;
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dctx->super.countsAndValues = XP_MALLOC( dctx->super.mpool,
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numFaces*2 );
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facesSize = numFaces * sizeof(dctx->super.faces16[0]);
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dctx->super.faces16 = XP_MALLOC( dctx->super.mpool, facesSize );
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XP_MEMSET( dctx->super.faces16, 0, facesSize );
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fread( dctx->super.faces16, numFaces * charSize,
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1, dictF );
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if ( charSize == sizeof(dctx->super.faces16[0]) ) {
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/* fix endianness */
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XP_U16 i;
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for ( i = 0; i < numFaces; ++i ) {
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XP_CHAR16 tmp = dctx->super.faces16[i];
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dctx->super.faces16[i] = ntohs(tmp);
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}
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} else {
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XP_UCHAR* src = ((XP_UCHAR*)(dctx->super.faces16)) + numFaces;
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XP_CHAR16* dest = dctx->super.faces16 + numFaces;
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while ( src-- <= (XP_UCHAR*)(dest--) ) {
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*dest = (XP_CHAR16)*src;
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}
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}
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fread( &xloc, 2, 1, dictF ); /* read in (dump) the xloc header for
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now */
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fread( dctx->super.countsAndValues, numFaces*2, 1, dictF );
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skipBitmaps( dctx, dictF );
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curPos = ftell( dictF );
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fseek( dictF, 0L, SEEK_END );
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dictLength = ftell( dictF ) - curPos;
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fseek( dictF, curPos, SEEK_SET );
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if ( dictLength > 0 ) {
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fread( &topOffset, sizeof(topOffset), 1, dictF );
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/* it's in big-endian order */
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topOffset = ntohl(topOffset);
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dictLength -= sizeof(topOffset); /* first four bytes are offset */
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}
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if ( dictLength > 0 ) {
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#ifdef DEBUG
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# ifdef NODE_CAN_4
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dctx->super.numEdges = dictLength / dctx->super.nodeSize;
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XP_ASSERT( (dictLength % dctx->super.nodeSize) == 0 );
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# else
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dctx->super.numEdges = dictLength / 3;
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XP_ASSERT( (dictLength % 3) == 0 );
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# endif
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#endif
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dctx->super.base = (array_edge*)XP_MALLOC( dctx->super.mpool,
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dictLength );
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XP_ASSERT( !!dctx->super.base );
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fread( dctx->super.base, dictLength, 1, dictF );
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dctx->super.topEdge = dctx->super.base + topOffset;
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} else {
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dctx->super.base = NULL;
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dctx->super.topEdge = NULL;
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}
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}
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fclose( dictF );
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return formatOk;
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} /* initFromDictFile */
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static void
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freeSpecials( LinuxDictionaryCtxt* ctxt )
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{
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XP_U16 nSpecials = 0;
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XP_U16 i;
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for ( i = 0; i < ctxt->super.nFaces; ++i ) {
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if ( IS_SPECIAL(ctxt->super.faces16[i]) ) {
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if ( !!ctxt->super.bitmaps ) {
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XP_Bitmap* bmp = ctxt->super.bitmaps[nSpecials].largeBM;
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if ( !!bmp ) {
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XP_FREE( ctxt->super.mpool, bmp );
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}
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bmp = ctxt->super.bitmaps[nSpecials].smallBM;
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if ( !!bmp ) {
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XP_FREE( ctxt->super.mpool, bmp );
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}
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}
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if ( !!ctxt->super.chars && !!ctxt->super.chars[nSpecials]) {
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XP_FREE( ctxt->super.mpool, ctxt->super.chars[nSpecials] );
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}
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++nSpecials;
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}
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}
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if ( !!ctxt->super.bitmaps ) {
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XP_FREE( ctxt->super.mpool, ctxt->super.bitmaps );
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}
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if ( !!ctxt->super.chars ) {
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XP_FREE( ctxt->super.mpool, ctxt->super.chars );
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}
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} /* freeSpecials */
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static void
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linux_dictionary_destroy( DictionaryCtxt* dict )
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{
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LinuxDictionaryCtxt* ctxt = (LinuxDictionaryCtxt*)dict;
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freeSpecials( ctxt );
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if ( !!dict->topEdge ) {
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XP_FREE( dict->mpool, dict->topEdge );
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}
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XP_FREE( dict->mpool, ctxt->super.countsAndValues );
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XP_FREE( dict->mpool, ctxt->super.faces16 );
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XP_FREE( dict->mpool, ctxt );
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} /* linux_dictionary_destroy */
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#else /* CLIENT_ONLY *IS* defined */
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/* initFromDictFile:
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* This guy reads in from a prc file, and probably hasn't worked in a year.
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*/
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#define RECS_BEFORE_DAWG 3 /* a hack */
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static XP_Bool
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initFromDictFile( LinuxDictionaryCtxt* dctx, char* fileName )
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{
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short i;
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unsigned short* dataP;
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unsigned nRecs;
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prc_record_t* prect;
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prc_t* pt = prcopen( fileName, PRC_OPEN_READ );
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dctx->pt = pt; /* remember so we can close it later */
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nRecs = prcgetnrecords( pt );
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/* record 0 holds a struct whose 5th byte is the record num of the first
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dawg record. 1 and 2 hold tile data. Let's assume 3 is the first dawg
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record for now. */
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prect = prcgetrecord( pt, 1 );
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dctx->super.numFaces = prect->datalen; /* one char per byte */
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dctx->super.faces = malloc( prect->datalen );
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memcpy( dctx->super.faces, prect->data, prect->datalen );
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dctx->super.counts = malloc( dctx->super.numFaces );
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dctx->super.values = malloc( dctx->super.numFaces );
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prect = prcgetrecord( pt, 2 );
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dataP = (unsigned short*)prect->data + 1; /* skip the xloc header */
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for ( i = 0; i < dctx->super.numFaces; ++i ) {
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unsigned short byt = *dataP++;
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dctx->super.values[i] = byt >> 8;
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dctx->super.counts[i] = byt & 0xFF;
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if ( dctx->super.values[i] == 0 ) {
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dctx->super.counts[i] = 4; /* 4 blanks :-) */
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}
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}
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dctx->numStarts = nRecs - RECS_BEFORE_DAWG;
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dctx->starts = XP_MALLOC( dctx->numStarts * sizeof(*dctx->starts) );
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for ( i = 0/* , offset = 0 */; i < dctx->numStarts; ++i ) {
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prect = prcgetrecord( pt, i + RECS_BEFORE_DAWG );
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dctx->starts[i].numNodes = prect->datalen / 3;
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dctx->starts[i].array = (array_edge*)prect->data;
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XP_ASSERT( (prect->datalen % 3) == 0 );
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}
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} /* initFromDictFile */
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void
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linux_dictionary_destroy( DictionaryCtxt* dict )
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{
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LinuxDictionaryCtxt* ctxt = (LinuxDictionaryCtxt*)dict;
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prcclose( ctxt->pt );
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}
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#endif /* CLIENT_ONLY */
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