Leaked source code of windows server 2003
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/***
**** Module: PFM**** Description:** This is a module of the T1 to TT font converter. The module** will extract information from a T1 font metrics file, by parsing** the data/commands found in a PFM file.**** Please note that all data stored in a PFM file is represented** in the little-endian order.**** Author: Michael Jansson**** Created: 5/26/93*****/
/**** INCLUDES *//* General types and definitions. */#include <string.h>
/* Special types and definitions. */#include "titott.h"
#include "types.h"
#include "safemem.h"
#include "metrics.h"
#include "t1msg.h"
/* Module dependent types and prototypes. */#include "fileio.h"
/***** CONSTANTS *//*-none-*/
/***** LOCAL TYPES *//*-none-*/
/***** MACROS *//*-none-*/
/***** STATIC FUNCTIONS */
/***
** Function: GetNextWord**** Description:** This function pulls two bytes from a file** and convert them into a 16-bit integer.***/static short GetNextWord(struct ioFile *file){ short iWord;
iWord = (short)io_ReadOneByte(file); iWord |= (short)(io_ReadOneByte(file) * 256);
return(iWord);}
/***
** Function: GetLong**** Description:** This function pulls four bytes from a file** and convert them into a 32-bit integer.***/static long GetLong(struct ioFile *file){ short low; short high;
low = GetNextWord(file); high = GetNextWord(file);
return (long)((long)low+((long)high * 65535L));}
/***
** Function: ReadString**** Description:** This function pulls a null terminated** string from the file.***/static void ReadString(UBYTE *dst, int size, struct ioFile *file){ int i;
i=0; while (io_FileError(file)==SUCCESS && i<size) { dst[i] = (UBYTE)io_ReadOneByte(file); if (dst[i]=='\0') break; i++; } if (i==size) dst[i-1] = '\0';}
/***** FUNCTIONS */
/***
** Function: ReadPFMMetrics**** Description:** This function parses a Printer Font Metrics** (*.pfm) file. ***/errcode ReadPFMMetrics(const char *metrics, struct T1Metrics *t1m){ errcode status = SUCCESS; struct ioFile *file; UBYTE buf[256]; long kernoffset; long widthoffset; long etmoffset; long faceoffset; short ver; short i;
if (metrics==NULL || (file = io_OpenFile(metrics, READONLY))==NULL) { status = NOMETRICS; } else {
(void)io_ReadOneByte(file); /* Skip the revision number. */ ver = (short)io_ReadOneByte(file);
if (ver>3) { SetError(status=UNSUPPORTEDFORMAT); } else {
(void)GetLong(file); /* dfSize */
/* Get Copyright */ if (t1m->copyright) Free(t1m->copyright); if ((t1m->copyright = Malloc(60))==NULL) { SetError(status=NOMEM); } else { (void)io_ReadBytes((UBYTE *)t1m->copyright, (USHORT)60, file);
(void)GetNextWord(file); /* dfType */ (void)GetNextWord(file); /* dfPoints */ (void)GetNextWord(file); /* dfVertRes */ (void)GetNextWord(file); /* dfHorizRes */ t1m->ascent = GetNextWord(file); /* dfAscent */ t1m->intLeading = GetNextWord(file); /* dfInternalLeading */ t1m->extLeading = GetNextWord(file); /* dfExternalLeading */ (void)io_ReadOneByte(file); /* dfItalic */ (void)io_ReadOneByte(file); /* dfUnderline */ (void)io_ReadOneByte(file); /* dfStrikeOut */ t1m->tmweight = (USHORT)GetNextWord(file); /* dfWeight */ t1m->CharSet = (UBYTE)io_ReadOneByte(file); /* dfCharSet */ (void)GetNextWord(file); /* dfPixWidth */ (void)GetNextWord(file); /* dfPixHeight */ t1m->pitchfam = (UBYTE)io_ReadOneByte(file);/* dfPitchAndFamily */ t1m->avgCharWidth = GetNextWord(file); /* dfAvgWidth */ (void)GetNextWord(file); /* dfMaxWidth */ t1m->firstChar = (UBYTE)io_ReadOneByte(file); /* dfFirstChar */ t1m->lastChar = (UBYTE)io_ReadOneByte(file); /* dfLastChar */ t1m->DefaultChar = (UBYTE)io_ReadOneByte(file); /* dfDefaultChar */ t1m->BreakChar = (UBYTE)io_ReadOneByte(file); /* dfBreakChar */ (void)GetNextWord(file); /* dfWidthBytes */ (void)GetLong(file); /* dfDevice */ faceoffset = GetLong(file); /* dfFace */ (void)GetLong(file); /* dfBitsPointer */ (void)GetLong(file); /* dfBitsOffset */ (void)GetNextWord(file); /* dfSizeFields */ etmoffset = GetLong(file); /* dfExtMetricsOffset */ widthoffset = GetLong(file); /* dfExtentTable */ (void)GetLong(file); /* dfOriginTable */ kernoffset = GetLong(file); /* dfPairKernTable */ (void)GetLong(file); /* dfTrackKernTable */ (void)GetLong(file); /* dfDriverInfo */ (void)GetLong(file); /* dfReserved */
if (io_FileError(file)!=SUCCESS) { SetError(status = BADMETRICS); }
/* Get extended type metrics */ (void)io_FileSeek(file, etmoffset);
(void)GetNextWord(file); /* etmSize */ (void)GetNextWord(file); /* etmPointSize */ (void)GetNextWord(file); /* etmOrientation */ (void)GetNextWord(file); /* etmMasterHeight */ (void)GetNextWord(file); /* etmMinScale */ (void)GetNextWord(file); /* etmMaxScale */ (void)GetNextWord(file); /* etmMasterUnits */ (void)GetNextWord(file); /* etmCapHeight */ (void)GetNextWord(file); /* etmXHeight */ (void)GetNextWord(file); /* etmLowerCaseAscent */ t1m->descent = GetNextWord(file); /* etmLowerCaseDecent */ (void)GetNextWord(file); /* etmSlant */ t1m->superoff = GetNextWord(file); /* etmSuperScript */ t1m->suboff = GetNextWord(file); /* etmSubScript */ t1m->supersize = GetNextWord(file); /* etmSuperScriptSize */ t1m->subsize = GetNextWord(file); /* etmSubScriptSize */ (void)GetNextWord(file); /* etmUnderlineOffset */ (void)GetNextWord(file); /* etmUnderlineWidth */ (void)GetNextWord(file); /* etmDoubleUpperUnderlineOffset*/ (void)GetNextWord(file); /* etmDoubleLowerUnderlineOffset*/ (void)GetNextWord(file); /* etmDoubleUpperUnderlineWidth */ (void)GetNextWord(file); /* etmDoubleLowerUnderlineWidth */ t1m->strikeoff = GetNextWord(file); /* etmStrikeOutOffset */ t1m->strikesize = GetNextWord(file); /* etmStrikeOutWidth */ (void)GetNextWord(file); /* etmNKernPairs */ (void)GetNextWord(file); /* etmNKernTracks */
/* Get the advance width for the characters. */ if ((t1m->widths = Malloc(sizeof(funit)* (t1m->lastChar - t1m->firstChar + 1)))==NULL) { SetError(status=NOMEM); } else { (void)io_FileSeek(file, widthoffset); for (i=0; i<=t1m->lastChar-t1m->firstChar; i++) t1m->widths[i] = GetNextWord(file);
if (io_FileError(file)!=SUCCESS) { SetError(status = BADMETRICS); } }
/* Get the face name. */ if ((status==SUCCESS) && faceoffset) { (void)io_FileSeek(file, faceoffset); if (t1m->family) Free(t1m->family); ReadString(buf, sizeof(buf), file); if (io_FileError(file)) { SetError(status = BADMETRICS); } else { if ((t1m->family = Strdup((char*)buf))==NULL) { SetError(status=NOMEM); } } }
/* Get the pair-kerning the typeface. */ if ((status==SUCCESS) && kernoffset) { (void)io_FileSeek(file, kernoffset); t1m->kernsize = (USHORT)GetNextWord(file); if (io_FileError(file)!=SUCCESS) { SetError(status = BADMETRICS); } else { if ((t1m->kerns = Malloc(sizeof(struct kerning)* t1m->kernsize))==NULL) { SetError(status=NOMEM); } else { for (i=0; i<(int)t1m->kernsize; i++) { t1m->kerns[i].left = (UBYTE)io_ReadOneByte(file); t1m->kerns[i].right = (UBYTE)io_ReadOneByte(file); t1m->kerns[i].delta = GetNextWord(file); }
if (io_FileError(file)!=SUCCESS) { SetError(status = BADMETRICS); } } } } } }
if (io_CloseFile(file)!=SUCCESS) status = BADMETRICS; }
return status;}
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