/* vmtx.c -- Vertical Metrics Table * Copyright (C) 1997 Li-Da Lho, All right reserved */ #include #include #include "config.h" #include "ttf.h" #include "ttfutil.h" #ifdef MEMCHECK #include #endif /* $Id: vmtx.c,v 1.1.1.1 1998/06/05 07:47:52 robert Exp $ */ #ifndef lint static char vcid[] = "$Id: vmtx.c,v 1.1.1.1 1998/06/05 07:47:52 robert Exp $"; #endif /* lint */ static VMTXPtr ttfAllocVMTX(TTFontPtr font); static void ttfLoadVMTX(FILE *fp,VMTXPtr vmtx,ULONG offset); /* Caution: Because of interdependency between tables, * table vhea and maxp should be well initalized before * ttfInitVMTX has been called */ void ttfInitVMTX(TTFontPtr font) { ULONG tag = 'v' | 'm' << 8 | 't' << 16 | 'x' << 24; TableDirPtr ptd; if ((ptd = ttfLookUpTableDir(tag,font)) != NULL) { font->vmtx = ttfAllocVMTX(font); font->vmtx->numOfLongVerMetrics = font->vhea->numOfLongVerMetrics; font->vmtx->numOfTSB = font->maxp->numGlyphs - font->vhea->numOfLongVerMetrics; ttfLoadVMTX(font->fp,font->vmtx,ptd->offset); } } static VMTXPtr ttfAllocVMTX(TTFontPtr font) { VMTXPtr vmtx; if ((vmtx = (VMTXPtr) calloc(1,sizeof(VMTX))) == NULL) { ttfError("Out of Memory in __FILE__:__LINE__\n"); return NULL; } return vmtx; } static void ttfLoadVMTX(FILE *fp,VMTXPtr vmtx,ULONG offset) { USHORT i,n = vmtx->numOfLongVerMetrics,m=vmtx->numOfTSB; if (fseek(fp,offset,SEEK_SET) !=0) ttfError("Fseek Failed in ttfLOADVMTX \n"); if ((vmtx->vMetrics = (longVerMetric *) calloc(n,sizeof(longVerMetric))) != NULL) { for (i=0;ivMetrics+i)->advanceHeight = ttfGetuFWord(fp); (vmtx->vMetrics+i)->topSideBearing = ttfGetFWord(fp); } } else { ttfError("Out Of Memory in __FILE__ : __LINE__\n"); } /* codes dealing with leftSideBearing entry */ if (m && ((vmtx->topSideBearing = (FWord *) calloc(m,sizeof(FWord))) != NULL)) { for (i=0;itopSideBearing)[i] = ttfGetFWord(fp); } } } void ttfPrintVMTX(FILE *fp,VMTXPtr vmtx) { int i; fprintf(fp,"'vmtx' Table - Vertical Metrics\n"); fprintf(fp,"---------------------------------\n"); for (i=0;inumOfLongVerMetrics;i++) { fprintf(fp,"\t %4d. advWid: %4d, TSBear: %4d\n",i, (vmtx->vMetrics+i)->advanceHeight, (vmtx->vMetrics+i)->topSideBearing); } for (i=0;inumOfTSB;i++) { fprintf(fp,"\t %4d. TSBear: %4d\n",i+vmtx->numOfLongVerMetrics, (vmtx->topSideBearing)[i]); } } void ttfFreeVMTX(VMTXPtr vmtx) { if (vmtx != NULL) { free(vmtx->vMetrics); if (vmtx->numOfTSB) free(vmtx->topSideBearing); free(vmtx); } }