ttdebug.c

freetype库的应用demo,里面包含freetype的很多实例

#include <stdio.h>
#include <stdlib.h>

#ifdef UNIX
#ifndef HAVE_POSIX_TERMIOS
#include <sys/ioctl.h>
#include <termio.h>
#else
#ifndef HAVE_TCGETATTR
#define HAVE_TCGETATTR
#endif /* HAVE_TCGETATTR */
#ifndef HAVE_TCSETATTR
#define HAVE_TCSETATTR
#endif /* HAVE_TCSETATTR */
#include <termios.h>
#endif /* HAVE_POSIX_TERMIOS */
#endif

/* Define the `getch()' function.  On Unix systems, it is an alias  */
/* for `getchar()', and the debugger front end must ensure that the */
/* `stdin' file descriptor is not in line-by-line input mode.       */
#ifndef UNIX
#include <conio.h>
#else
#define getch  getchar
#endif


#include <ft2build.h>
#include FT_FREETYPE_H

/* "freetype2/src/truetype" must be in the current include path */
#include "ttobjs.h"
#include "ttdriver.h"
#include "ttinterp.h"
#include "tterrors.h"

FT_Library      library;    /* root library object */
FT_Memory       memory;     /* system object */
FT_Driver       driver;     /* truetype driver */
TT_Face         face;       /* truetype face */
TT_Size         size;       /* truetype size */
TT_GlyphSlot    glyph;      /* truetype glyph slot */
TT_ExecContext  exec;       /* truetype execution context */
FT_Error        error;

TT_CodeRange_Tag  debug_coderange = tt_coderange_glyph;

  typedef FT_Byte ByteStr[2];
  typedef FT_Byte WordStr[4];
  typedef FT_Byte LongStr[8];
  typedef FT_Byte DebugStr[128];

  static  DebugStr tempStr;

#undef  PACK
#define PACK( x, y )  ((x << 4) | y)

  static const FT_Byte  Pop_Push_Count[256] =
  {
    /* opcodes are gathered in groups of 16 */
    /* please keep the spaces as they are   */

    /*  SVTCA  y  */  PACK( 0, 0 ),
    /*  SVTCA  x  */  PACK( 0, 0 ),
    /*  SPvTCA y  */  PACK( 0, 0 ),
    /*  SPvTCA x  */  PACK( 0, 0 ),
    /*  SFvTCA y  */  PACK( 0, 0 ),
    /*  SFvTCA x  */  PACK( 0, 0 ),
    /*  SPvTL //  */  PACK( 2, 0 ),
    /*  SPvTL +   */  PACK( 2, 0 ),
    /*  SFvTL //  */  PACK( 2, 0 ),
    /*  SFvTL +   */  PACK( 2, 0 ),
    /*  SPvFS     */  PACK( 2, 0 ),
    /*  SFvFS     */  PACK( 2, 0 ),
    /*  GPV       */  PACK( 0, 2 ),
    /*  GFV       */  PACK( 0, 2 ),
    /*  SFvTPv    */  PACK( 0, 0 ),
    /*  ISECT     */  PACK( 5, 0 ),

    /*  SRP0      */  PACK( 1, 0 ),
    /*  SRP1      */  PACK( 1, 0 ),
    /*  SRP2      */  PACK( 1, 0 ),
    /*  SZP0      */  PACK( 1, 0 ),
    /*  SZP1      */  PACK( 1, 0 ),
    /*  SZP2      */  PACK( 1, 0 ),
    /*  SZPS      */  PACK( 1, 0 ),
    /*  SLOOP     */  PACK( 1, 0 ),
    /*  RTG       */  PACK( 0, 0 ),
    /*  RTHG      */  PACK( 0, 0 ),
    /*  SMD       */  PACK( 1, 0 ),
    /*  ELSE      */  PACK( 0, 0 ),
    /*  JMPR      */  PACK( 1, 0 ),
    /*  SCvTCi    */  PACK( 1, 0 ),
    /*  SSwCi     */  PACK( 1, 0 ),
    /*  SSW       */  PACK( 1, 0 ),

    /*  DUP       */  PACK( 1, 2 ),
    /*  POP       */  PACK( 1, 0 ),
    /*  CLEAR     */  PACK( 0, 0 ),
    /*  SWAP      */  PACK( 2, 2 ),
    /*  DEPTH     */  PACK( 0, 1 ),
    /*  CINDEX    */  PACK( 1, 1 ),
    /*  MINDEX    */  PACK( 1, 0 ),
    /*  AlignPTS  */  PACK( 2, 0 ),
    /*  INS_$28   */  PACK( 0, 0 ),
    /*  UTP       */  PACK( 1, 0 ),
    /*  LOOPCALL  */  PACK( 2, 0 ),
    /*  CALL      */  PACK( 1, 0 ),
    /*  FDEF      */  PACK( 1, 0 ),
    /*  ENDF      */  PACK( 0, 0 ),
    /*  MDAP[0]   */  PACK( 1, 0 ),
    /*  MDAP[1]   */  PACK( 1, 0 ),

    /*  IUP[0]    */  PACK( 0, 0 ),
    /*  IUP[1]    */  PACK( 0, 0 ),
    /*  SHP[0]    */  PACK( 0, 0 ),
    /*  SHP[1]    */  PACK( 0, 0 ),
    /*  SHC[0]    */  PACK( 1, 0 ),
    /*  SHC[1]    */  PACK( 1, 0 ),
    /*  SHZ[0]    */  PACK( 1, 0 ),
    /*  SHZ[1]    */  PACK( 1, 0 ),
    /*  SHPIX     */  PACK( 1, 0 ),
    /*  IP        */  PACK( 0, 0 ),
    /*  MSIRP[0]  */  PACK( 2, 0 ),
    /*  MSIRP[1]  */  PACK( 2, 0 ),
    /*  AlignRP   */  PACK( 0, 0 ),
    /*  RTDG      */  PACK( 0, 0 ),
    /*  MIAP[0]   */  PACK( 2, 0 ),
    /*  MIAP[1]   */  PACK( 2, 0 ),

    /*  NPushB    */  PACK( 0, 0 ),
    /*  NPushW    */  PACK( 0, 0 ),
    /*  WS        */  PACK( 2, 0 ),
    /*  RS        */  PACK( 1, 1 ),
    /*  WCvtP     */  PACK( 2, 0 ),
    /*  RCvt      */  PACK( 1, 1 ),
    /*  GC[0]     */  PACK( 1, 1 ),
    /*  GC[1]     */  PACK( 1, 1 ),
    /*  SCFS      */  PACK( 2, 0 ),
    /*  MD[0]     */  PACK( 2, 1 ),
    /*  MD[1]     */  PACK( 2, 1 ),
    /*  MPPEM     */  PACK( 0, 1 ),
    /*  MPS       */  PACK( 0, 1 ),
    /*  FlipON    */  PACK( 0, 0 ),
    /*  FlipOFF   */  PACK( 0, 0 ),
    /*  DEBUG     */  PACK( 1, 0 ),

    /*  LT        */  PACK( 2, 1 ),
    /*  LTEQ      */  PACK( 2, 1 ),
    /*  GT        */  PACK( 2, 1 ),
    /*  GTEQ      */  PACK( 2, 1 ),
    /*  EQ        */  PACK( 2, 1 ),
    /*  NEQ       */  PACK( 2, 1 ),
    /*  ODD       */  PACK( 1, 1 ),
    /*  EVEN      */  PACK( 1, 1 ),
    /*  IF        */  PACK( 1, 0 ),
    /*  EIF       */  PACK( 0, 0 ),
    /*  AND       */  PACK( 2, 1 ),
    /*  OR        */  PACK( 2, 1 ),
    /*  NOT       */  PACK( 1, 1 ),
    /*  DeltaP1   */  PACK( 1, 0 ),
    /*  SDB       */  PACK( 1, 0 ),
    /*  SDS       */  PACK( 1, 0 ),

    /*  ADD       */  PACK( 2, 1 ),
    /*  SUB       */  PACK( 2, 1 ),
    /*  DIV       */  PACK( 2, 1 ),
    /*  MUL       */  PACK( 2, 1 ),
    /*  ABS       */  PACK( 1, 1 ),
    /*  NEG       */  PACK( 1, 1 ),
    /*  FLOOR     */  PACK( 1, 1 ),
    /*  CEILING   */  PACK( 1, 1 ),
    /*  ROUND[0]  */  PACK( 1, 1 ),
    /*  ROUND[1]  */  PACK( 1, 1 ),
    /*  ROUND[2]  */  PACK( 1, 1 ),
    /*  ROUND[3]  */  PACK( 1, 1 ),
    /*  NROUND[0] */  PACK( 1, 1 ),
    /*  NROUND[1] */  PACK( 1, 1 ),
    /*  NROUND[2] */  PACK( 1, 1 ),
    /*  NROUND[3] */  PACK( 1, 1 ),

    /*  WCvtF     */  PACK( 2, 0 ),
    /*  DeltaP2   */  PACK( 1, 0 ),
    /*  DeltaP3   */  PACK( 1, 0 ),
    /*  DeltaCn[0] */ PACK( 1, 0 ),
    /*  DeltaCn[1] */ PACK( 1, 0 ),
    /*  DeltaCn[2] */ PACK( 1, 0 ),
    /*  SROUND    */  PACK( 1, 0 ),
    /*  S45Round  */  PACK( 1, 0 ),
    /*  JROT      */  PACK( 2, 0 ),
    /*  JROF      */  PACK( 2, 0 ),
    /*  ROFF      */  PACK( 0, 0 ),
    /*  INS_$7B   */  PACK( 0, 0 ),
    /*  RUTG      */  PACK( 0, 0 ),
    /*  RDTG      */  PACK( 0, 0 ),
    /*  SANGW     */  PACK( 1, 0 ),
    /*  AA        */  PACK( 1, 0 ),

    /*  FlipPT    */  PACK( 0, 0 ),
    /*  FlipRgON  */  PACK( 2, 0 ),
    /*  FlipRgOFF */  PACK( 2, 0 ),
    /*  INS_$83   */  PACK( 0, 0 ),
    /*  INS_$84   */  PACK( 0, 0 ),
    /*  ScanCTRL  */  PACK( 1, 0 ),
    /*  SDVPTL[0] */  PACK( 2, 0 ),
    /*  SDVPTL[1] */  PACK( 2, 0 ),
    /*  GetINFO   */  PACK( 1, 1 ),
    /*  IDEF      */  PACK( 1, 0 ),
    /*  ROLL      */  PACK( 3, 3 ),
    /*  MAX       */  PACK( 2, 1 ),
    /*  MIN       */  PACK( 2, 1 ),
    /*  ScanTYPE  */  PACK( 1, 0 ),
    /*  InstCTRL  */  PACK( 2, 0 ),
    /*  INS_$8F   */  PACK( 0, 0 ),

    /*  INS_$90  */   PACK( 0, 0 ),
    /*  INS_$91  */   PACK( 0, 0 ),
    /*  INS_$92  */   PACK( 0, 0 ),
    /*  INS_$93  */   PACK( 0, 0 ),
    /*  INS_$94  */   PACK( 0, 0 ),
    /*  INS_$95  */   PACK( 0, 0 ),
    /*  INS_$96  */   PACK( 0, 0 ),
    /*  INS_$97  */   PACK( 0, 0 ),
    /*  INS_$98  */   PACK( 0, 0 ),
    /*  INS_$99  */   PACK( 0, 0 ),
    /*  INS_$9A  */   PACK( 0, 0 ),
    /*  INS_$9B  */   PACK( 0, 0 ),
    /*  INS_$9C  */   PACK( 0, 0 ),
    /*  INS_$9D  */   PACK( 0, 0 ),
    /*  INS_$9E  */   PACK( 0, 0 ),
    /*  INS_$9F  */   PACK( 0, 0 ),

    /*  INS_$A0  */   PACK( 0, 0 ),
    /*  INS_$A1  */   PACK( 0, 0 ),
    /*  INS_$A2  */   PACK( 0, 0 ),
    /*  INS_$A3  */   PACK( 0, 0 ),
    /*  INS_$A4  */   PACK( 0, 0 ),
    /*  INS_$A5  */   PACK( 0, 0 ),
    /*  INS_$A6  */   PACK( 0, 0 ),
    /*  INS_$A7  */   PACK( 0, 0 ),
    /*  INS_$A8  */   PACK( 0, 0 ),
    /*  INS_$A9  */   PACK( 0, 0 ),
    /*  INS_$AA  */   PACK( 0, 0 ),
    /*  INS_$AB  */   PACK( 0, 0 ),
    /*  INS_$AC  */   PACK( 0, 0 ),
    /*  INS_$AD  */   PACK( 0, 0 ),
    /*  INS_$AE  */   PACK( 0, 0 ),
    /*  INS_$AF  */   PACK( 0, 0 ),

    /*  PushB[0]  */  PACK( 0, 1 ),
    /*  PushB[1]  */  PACK( 0, 2 ),
    /*  PushB[2]  */  PACK( 0, 3 ),
    /*  PushB[3]  */  PACK( 0, 4 ),
    /*  PushB[4]  */  PACK( 0, 5 ),
    /*  PushB[5]  */  PACK( 0, 6 ),
    /*  PushB[6]  */  PACK( 0, 7 ),
    /*  PushB[7]  */  PACK( 0, 8 ),
    /*  PushW[0]  */  PACK( 0, 1 ),
    /*  PushW[1]  */  PACK( 0, 2 ),
    /*  PushW[2]  */  PACK( 0, 3 ),
    /*  PushW[3]  */  PACK( 0, 4 ),
    /*  PushW[4]  */  PACK( 0, 5 ),
    /*  PushW[5]  */  PACK( 0, 6 ),
    /*  PushW[6]  */  PACK( 0, 7 ),
    /*  PushW[7]  */  PACK( 0, 8 ),

    /*  MDRP[00]  */  PACK( 1, 0 ),
    /*  MDRP[01]  */  PACK( 1, 0 ),
    /*  MDRP[02]  */  PACK( 1, 0 ),
    /*  MDRP[03]  */  PACK( 1, 0 ),
    /*  MDRP[04]  */  PACK( 1, 0 ),
    /*  MDRP[05]  */  PACK( 1, 0 ),
    /*  MDRP[06]  */  PACK( 1, 0 ),
    /*  MDRP[07]  */  PACK( 1, 0 ),
    /*  MDRP[08]  */  PACK( 1, 0 ),
    /*  MDRP[09]  */  PACK( 1, 0 ),
    /*  MDRP[10]  */  PACK( 1, 0 ),
    /*  MDRP[11]  */  PACK( 1, 0 ),
    /*  MDRP[12]  */  PACK( 1, 0 ),
    /*  MDRP[13]  */  PACK( 1, 0 ),
    /*  MDRP[14]  */  PACK( 1, 0 ),
    /*  MDRP[15]  */  PACK( 1, 0 ),

    /*  MDRP[16]  */  PACK( 1, 0 ),
    /*  MDRP[17]  */  PACK( 1, 0 ),
    /*  MDRP[18]  */  PACK( 1, 0 ),
    /*  MDRP[19]  */  PACK( 1, 0 ),
    /*  MDRP[20]  */  PACK( 1, 0 ),
    /*  MDRP[21]  */  PACK( 1, 0 ),
    /*  MDRP[22]  */  PACK( 1, 0 ),
    /*  MDRP[23]  */  PACK( 1, 0 ),
    /*  MDRP[24]  */  PACK( 1, 0 ),
    /*  MDRP[25]  */  PACK( 1, 0 ),
    /*  MDRP[26]  */  PACK( 1, 0 ),
    /*  MDRP[27]  */  PACK( 1, 0 ),
    /*  MDRP[28]  */  PACK( 1, 0 ),
    /*  MDRP[29]  */  PACK( 1, 0 ),
    /*  MDRP[30]  */  PACK( 1, 0 ),
    /*  MDRP[31]  */  PACK( 1, 0 ),

    /*  MIRP[00]  */  PACK( 2, 0 ),
    /*  MIRP[01]  */  PACK( 2, 0 ),
    /*  MIRP[02]  */  PACK( 2, 0 ),
    /*  MIRP[03]  */  PACK( 2, 0 ),
    /*  MIRP[04]  */  PACK( 2, 0 ),
    /*  MIRP[05]  */  PACK( 2, 0 ),
    /*  MIRP[06]  */  PACK( 2, 0 ),
    /*  MIRP[07]  */  PACK( 2, 0 ),
    /*  MIRP[08]  */  PACK( 2, 0 ),
    /*  MIRP[09]  */  PACK( 2, 0 ),
    /*  MIRP[10]  */  PACK( 2, 0 ),
    /*  MIRP[11]  */  PACK( 2, 0 ),
    /*  MIRP[12]  */  PACK( 2, 0 ),
    /*  MIRP[13]  */  PACK( 2, 0 ),
    /*  MIRP[14]  */  PACK( 2, 0 ),
    /*  MIRP[15]  */  PACK( 2, 0 ),

    /*  MIRP[16]  */  PACK( 2, 0 ),
    /*  MIRP[17]  */  PACK( 2, 0 ),
    /*  MIRP[18]  */  PACK( 2, 0 ),
    /*  MIRP[19]  */  PACK( 2, 0 ),
    /*  MIRP[20]  */  PACK( 2, 0 ),
    /*  MIRP[21]  */  PACK( 2, 0 ),
    /*  MIRP[22]  */  PACK( 2, 0 ),
    /*  MIRP[23]  */  PACK( 2, 0 ),
    /*  MIRP[24]  */  PACK( 2, 0 ),
    /*  MIRP[25]  */  PACK( 2, 0 ),
    /*  MIRP[26]  */  PACK( 2, 0 ),
    /*  MIRP[27]  */  PACK( 2, 0 ),
    /*  MIRP[28]  */  PACK( 2, 0 ),
    /*  MIRP[29]  */  PACK( 2, 0 ),
    /*  MIRP[30]  */  PACK( 2, 0 ),
    /*  MIRP[31]  */  PACK( 2, 0 )
  };


  static const FT_String*  OpStr[256] = {
            "SVTCA y",       /* Set vectors to coordinate axis y    */
            "SVTCA x",       /* Set vectors to coordinate axis x    */
            "SPvTCA y",      /* Set Proj. vec. to coord. axis y     */
            "SPvTCA x",      /* Set Proj. vec. to coord. axis x     */
            "SFvTCA y",      /* Set Free. vec. to coord. axis y     */
            "SFvTCA x",      /* Set Free. vec. to coord. axis x     */
            "SPvTL //",      /* Set Proj. vec. parallel to segment  */
            "SPvTL +",       /* Set Proj. vec. normal to segment    */
            "SFvTL //",      /* Set Free. vec. parallel to segment  */
            "SFvTL +",       /* Set Free. vec. normal to segment    */
            "SPvFS",         /* Set Proj. vec. from stack           */
            "SFvFS",         /* Set Free. vec. from stack           */
            "GPV",           /* Get projection vector               */
            "GFV",           /* Get freedom vector                  */
            "SFvTPv",        /* Set free. vec. to proj. vec.        */
            "ISECT",         /* compute intersection                */

            "SRP0",          /* Set reference point 0               */
            "SRP1",          /* Set reference point 1               */
            "SRP2",          /* Set reference point 2               */
            "SZP0",          /* Set Zone Pointer 0                  */
            "SZP1",          /* Set Zone Pointer 1                  */
            "SZP2",          /* Set Zone Pointer 2                  */
            "SZPS",          /* Set all zone pointers               */
            "SLOOP",         /* Set loop counter                    */
            "RTG",           /* Round to Grid                       */
            "RTHG",          /* Round to Half-Grid                  */
            "SMD",           /* Set Minimum Distance                */
            "ELSE",          /* Else                                */
            "JMPR",          /* Jump Relative                       */
            "SCvTCi",        /* Set CVT                             */
            "SSwCi",         /*                                     */
            "SSW",           /*                                     */

            "DUP",
            "POP",
            "CLEAR",
            "SWAP",
            "DEPTH",
            "CINDEX",
            "MINDEX",
            "AlignPTS",
            "INS_$28",
            "UTP",
            "LOOPCALL",
            "CALL",
            "FDEF",
            "ENDF",
            "MDAP[-]",
            "MDAP[r]",

            "IUP[y]",
            "IUP[x]",
            "SHP[0]",
            "SHP[1]",
            "SHC[0]",
            "SHC[1]",
            "SHZ[0]",
            "SHZ[1]",
            "SHPIX",
            "IP",
            "MSIRP[0]",
            "MSIRP[1]",
            "AlignRP",
            "RTDG",
            "MIAP[-]",
            "MIAP[r]",

            "NPushB",
            "NPushW",
            "WS",
            "RS",
            "WCvtP",
            "RCvt",
            "GC[0]",
            "GC[1]",
            "SCFS",
            "MD[0]",
            "MD[1]",
            "MPPEM",
            "MPS",
            "FlipON",
            "FlipOFF",
            "DEBUG",