/* hmtx.c -- Horizontal Metrics Table * Copyright (C) 1997 Li-Da Lho, All right reserved  */#include <stdio.h>#include <stdlib.h>#include "config.h"#include "ttf.h"#include "ttfutil.h"#ifdef MEMCHECK#include <dmalloc.h>#endif/* 	$Id: hmtx.c,v 1.1.1.1 1998/06/05 07:47:52 robert Exp $	 */#ifndef lintstatic char vcid[] = "$Id: hmtx.c,v 1.1.1.1 1998/06/05 07:47:52 robert Exp $";#endif /* lint */static HMTXPtr ttfAllocHMTX(TTFontPtr font);static void ttfLoadHMTX(FILE *fp,HMTXPtr hmtx,ULONG offset);/* Caution: Because of interdependency between tables,  * table hhea and maxp should be well initalized before * ttfInitHMTX is been called */void ttfInitHMTX(TTFontPtr font){    ULONG tag = 'h' | 'm' << 8 | 't' << 16 | 'x' << 24;    TableDirPtr ptd;        if ((ptd = ttfLookUpTableDir(tag,font)) != NULL) 	{	    font->hmtx = ttfAllocHMTX(font);	    font->hmtx->numberOfHMetrics = font->hhea->numberOfHMetrics;	    font->hmtx->numberOfLSB = font->maxp->numGlyphs - 		font->hhea->numberOfHMetrics; 	    ttfLoadHMTX(font->fp,font->hmtx,ptd->offset);	}}static HMTXPtr ttfAllocHMTX(TTFontPtr font){    HMTXPtr hmtx;    if ((hmtx = (HMTXPtr) calloc(1,sizeof(HMTX))) == NULL)	{	    ttfError("Out of Memory in __FILE__:__LINE__\n");	    return NULL;	}    return hmtx;}static void ttfLoadHMTX(FILE *fp,HMTXPtr hmtx,ULONG offset){    USHORT i,n = hmtx->numberOfHMetrics,m=hmtx->numberOfLSB;    if (fseek(fp,offset,SEEK_SET) !=0)	ttfError("Fseek Failed in ttfLOADHMTX \n");        if ((hmtx->hMetrics = (longHorMetric *) calloc(n,sizeof(longHorMetric))) != NULL)	{	    for (i=0;i<n;i++)		{		    (hmtx->hMetrics+i)->advanceWidth = ttfGetuFWord(fp);		    (hmtx->hMetrics+i)->lsb = ttfGetFWord(fp);		}	}    else	{	    ttfError("Out Of Memory in __FILE__ : __LINE__\n"); 	}    /* codes dealing with leftSideBearing entry */    if (m && ((hmtx->leftSideBearing = (FWord *) calloc(m,sizeof(FWord))) != NULL))	{	    for (i=0;i<m;i++)		{		    (hmtx->leftSideBearing)[i] = ttfGetFWord(fp);		}	}}void ttfPrintHMTX(FILE *fp,HMTXPtr hmtx){    int i;        fprintf(fp,"'hmtx' Table - Horizontal Metrics\n");    fprintf(fp,"---------------------------------\n");        for (i=0;i<hmtx->numberOfHMetrics;i++)	{	    fprintf(fp,"\t %4d. advWid: %4d, LSBear: %4d\n",i,		    (hmtx->hMetrics+i)->advanceWidth,		    (hmtx->hMetrics+i)->lsb);	}    for (i=0;i<hmtx->numberOfLSB;i++)	{	    fprintf(fp,"\t %4d. LSbear: %4d\n",i+hmtx->numberOfHMetrics,		    (hmtx->leftSideBearing)[i]);	}}void ttfFreeHMTX(HMTXPtr hmtx){    free(hmtx->hMetrics);    if (hmtx->numberOfLSB)	free(hmtx->leftSideBearing);    free(hmtx);}