/* ltsh.c -- Linear Threshold table * Copyright (C) 1996 Li-Da Lho, All right reserved */ #include #include #include "config.h" #include "ttf.h" #include "ttfutil.h" #ifdef MEMCHECK #include #endif /* $Id: ltsh.c,v 1.1.1.1 1998/06/05 07:47:52 robert Exp $ */ #ifndef lint static char vcid[] = "$Id: ltsh.c,v 1.1.1.1 1998/06/05 07:47:52 robert Exp $"; #endif /* lint */ static LTSHPtr ttfAllocLTSH(TTFontPtr font); static void ttfLoadLTSH(FILE *fp,LTSHPtr ltsh,ULONG offset); void ttfInitLTSH(TTFontPtr font) { ULONG tag = 'L' | 'T' << 8 | 'S' << 16 | 'H' << 24; TableDirPtr ptd; if ((ptd = ttfLookUpTableDir(tag,font)) != NULL) { font->ltsh = ttfAllocLTSH(font); ttfLoadLTSH(font->fp,font->ltsh,ptd->offset); } } static LTSHPtr ttfAllocLTSH(TTFontPtr font) { LTSHPtr ltsh; if ((ltsh = (LTSHPtr) calloc(1,sizeof(LTSH))) == NULL) { ttfError("Out of Memory in __FILE__:__LINE__\n"); return NULL; } return ltsh; } static void ttfLoadLTSH (FILE *fp,LTSHPtr ltsh,ULONG offset) { if (fseek(fp,offset,SEEK_SET) !=0) ttfError("Fseek Failed in ttfLoadLTSH \n"); ltsh->version = ttfGetUSHORT(fp); ltsh->numGlyphs = ttfGetUSHORT(fp); ltsh->yPels = (BYTE *) calloc(ltsh->numGlyphs, sizeof(BYTE)); if(fread(ltsh->yPels, sizeof(BYTE), ltsh->numGlyphs, fp) != ltsh->numGlyphs) ttfError("Error when getting yPels\n"); } void ttfPrintLTSH(FILE *fp,LTSHPtr ltsh) { int i; fprintf(fp,"'LTSH' Table - Linear Threshold Table\n"); fprintf(fp,"-------------------------------------\n"); fprintf(fp,"'LTSH' Version:\t %d\n",ltsh->version); fprintf(fp,"Number of Glyphs:\t %d\n",ltsh->numGlyphs); fprintf(fp,"\t Glyph # \t Threshold\n"); for (i=0;inumGlyphs;i++) { fprintf(fp,"\t %d. \t\t %d\n",i,ltsh->yPels[i]); } } void ttfFreeLTSH(LTSHPtr ltsh) { if (ltsh != NULL) { free(ltsh->yPels); free(ltsh); } }