/*****************************************************************************\
  script.cpp : Implimentation for scripting

  Copyright (c) 1996 - 2001, Hewlett-Packard Co.
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
  3. Neither the name of Hewlett-Packard nor the names of its
     contributors may be used to endorse or promote products derived
     from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  TO, PATENT INFRINGEMENT; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\*****************************************************************************/

#if defined(APDK_CAPTURE)

#include "header.h"
#include "script.h"

APDK_BEGIN_NAMESPACE

extern char* Version(int bCompressed);

Scripter::Scripter(SystemServices* pSS):
    pSys(pSS),
    GlobalBuffer(NULL),
    buffsize(0)
{ }


Scripter::~Scripter()
{ }


AsciiScripter::AsciiScripter(SystemServices* pSS)
: Scripter(pSS)
{ }


AsciiScripter::~AsciiScripter()
{ }


BinaryScripter::BinaryScripter(SystemServices* pSS)
: AsciiScripter(pSS)
{ }


BinaryScripter::~BinaryScripter()
{ }


DRIVER_ERROR SystemServices::InitScript(const char* FileName, BOOL ascii, BOOL read)
{
    if (ascii)
        pScripter = new AsciiScripter(this);
    else pScripter = new BinaryScripter(this);

    if (read)
    {
        replay=TRUE;
        if (pScripter->OpenDebugStreamR(FileName))
            return SYSTEM_ERROR;
        else return NO_ERROR;
    }
    else
    {
        replay=FALSE;
        if (pScripter->OpenDebugStreamW(FileName))
                return SYSTEM_ERROR;
            else return NO_ERROR;
    }

}

DRIVER_ERROR SystemServices::EndScript()
{
    if (pScripter==NULL)
        return SYSTEM_ERROR;

    if (replay)
    {
        if (pScripter->CloseDebugStreamR())
            return SYSTEM_ERROR;
        else return NO_ERROR;
    }
    else
    {
        if (pScripter->CloseDebugStreamW())
            return SYSTEM_ERROR;
        else return NO_ERROR;
    }

    delete pScripter;
}


BOOL Scripter::ParseVer(char* str)
// set argProprietary
{
// example:
//"[platform-specific information]!!002.001_09-12-00 propscale openimg debug little_endian fonts:CTLU DJ400 DJ540 DJ600 DJ6xx DJ6xxPhoto DJ8xx DJ9xx Aladdin DJ630 eprinter"

    char c;
    char ver[5];
    int i=0;
    c=str[i];
    while ((c!='!') && (c!=EOF))
        c=str[++i];
    if (c!='!')
        return TRUE;
    while ((c!=' ') && (c!=EOF))
        c=str[++i];
    if (c!=' ')
        return TRUE;

    for (int j=0; j<4; j++)
        ver[j]=str[++i];
    ver[4]='\0';

    if (!strcmp(ver,"open"))            // old style
        ;
    else if (!strcmp(ver,"prop"))            // old style
        ;
    // new style
    else
    {
        if (!strcmp(ver,"openscale"))
            ;
        else if (!strcmp(ver,"propscale"))
            ;
          else return TRUE;
        if (!strcmp(ver,"openimg"))
            ;
        else if (!strcmp(ver,"propimg"))
                ;
              else return TRUE;
    }
 return FALSE;
}

BOOL AsciiScripter::OpenDebugStreamR(const char* FileName)
{
    int x;
    char *str;

    strncpy(ScriptFileName,FileName, sizeof(ScriptFileName)-1);

    ScriptFile = fopen(ScriptFileName, "ra");

    if (ScriptFile == NULL)
        return TRUE;

    char c=fgetc(ScriptFile);
    fseek(ScriptFile,0, 0);

    if (c==' ')             // spaces were never overwritten with tokencount
    {
        x = 2000;       // arbitrary guess

    }
    else if (GetDebugInt(x))
            return TRUE;

    TokenCount=x;
    ReplayTokenCount=0;
    fontcount=0;

    if (GetDebugString(str,x))      // get $Version
        return TRUE;

    if (ParseVer(str))
        return TRUE;

  return FALSE;
}


BOOL AsciiScripter::CloseDebugStreamR()
{
    if (GlobalBuffer != NULL)
        pSys->FreeMem((BYTE*)GlobalBuffer,FALSE);

    if (ScriptFile==NULL)
        return TRUE;
    return fclose(ScriptFile);
}


BOOL AsciiScripter::OpenDebugStreamW(const char* FileName)
{
    strncpy(ScriptFileName,FileName, sizeof(ScriptFileName)-1);
    ScriptFile = fopen(ScriptFileName, "wa");

    if (ScriptFile == NULL)
        return TRUE;

    pSys->Capturing=TRUE;
    TokenCount=0;
    fontcount=0;

    // set up debugging token strings
    strcpy(TokString[0],"Job constructor");
    strcpy(TokString[1],"Job destructor");
    strcpy(TokString[2],"NewPage");
    strcpy(TokString[3],"SendRasters");
    strcpy(TokString[4],"TextOut");
    strcpy(TokString[5],"UNUSED1");
    strcpy(TokString[6],"Font destructor");
    strcpy(TokString[7],"PrintContext constructor");
    strcpy(TokString[8],"PrintContext destructor");
    strcpy(TokString[9],"SetPixelsPerRow");
    strcpy(TokString[10],"RealizeFont");
    strcpy(TokString[11],"SelectDevice");
    strcpy(TokString[12],"SelectPrintMode");
    strcpy(TokString[13],"SetPaperSize");
    strcpy(TokString[14],"UseBlackOnly");
    strcpy(TokString[15],"UseColor");
    strcpy(TokString[16],"SetInputResolution");
    strcpy(TokString[17],"UNUSED");
    strcpy(TokString[18],"UNUSED");
    strcpy(TokString[19],"UNUSED");
    strcpy(TokString[20],"String");
    strcpy(TokString[21],"RLE stream");
    strcpy(TokString[22],"RAW stream");
    strcpy(TokString[23],"stream token");
    strcpy(TokString[24],"NULL token");

    for (int i=0; i<25; i++)
        TokCount[i]=0;

    fprintf(ScriptFile,"      ");

    char version[TEMPLEN];
    sprintf(version, Version(FALSE) );
    int len = strlen(version);

    if (PutDebugString(version, len))
        return TRUE;


    return FALSE;
}

BOOL AsciiScripter::CloseDebugStreamW()
{
    if (ScriptFile==NULL)
        return TRUE;

    if (GlobalBuffer != NULL)
        pSys->FreeMem((BYTE*)GlobalBuffer,FALSE);

    fseek(ScriptFile,0, 0);
    PutDebugInt(TokenCount);

    pSys->Capturing=FALSE;


    return fclose(ScriptFile);
}


BOOL AsciiScripter::PutDebugToken(const int token)
{
    TokenCount++;
    TokCount[token] =  TokCount[token]+1;

    int res=fprintf(ScriptFile,"%%%0x ",token);
    if (res<1)
        return TRUE;

    res=fprintf(ScriptFile,"\n%s:%d\n",TokString[token], TokCount[token]);

    return (res < 1);   // bad if res<1
}


BOOL AsciiScripter::PutDebugInt(const int data)
{
    int res=fprintf(ScriptFile,"%%%0x ",data);
  return (res < 1);   // bad if res<1
}


BOOL AsciiScripter::PutDebugByte(const BYTE data)
{ return PutDebugInt(data); }


BOOL AsciiScripter::PutDebugString(const char* str,const int len)
{
   if (PutDebugToken(tokCharPtr))
       return TRUE;
   if (PutDebugInt(len))
       return TRUE;

   fputc('"',ScriptFile);
   for (int i=0; i < len; i++)
        fprintf(ScriptFile,"%c",str[i]);
   fputc('"',ScriptFile);

return FALSE;
}


BOOL AsciiScripter::PutDebugStream(const BYTE* str,const int len)
{
// Does modified run-length-encoding from stream.
// len=length of raw stream
    int total=1; short count,i,j; BYTE current,next,last;
    BOOL rle=TRUE;
    short chunkarray[3];

    if ((len==0) || (str==NULL))
    {
        PutDebugToken(tokRawStream);
        fprintf(ScriptFile,"%%%0x ", len);
        return FALSE;
    }

    next=0; // suppress stupid compiler warning
    int alloclen= len*2;        // in worst case each byte produces [count=1][byte]
    if (buffsize < alloclen)
      {
        if (GlobalBuffer!=NULL)
            pSys->FreeMem((BYTE*)GlobalBuffer,FALSE);
        GlobalBuffer = (short*)pSys->AllocMem(alloclen,FALSE);
        buffsize=alloclen;
      }

    short* buff = GlobalBuffer;

    short *thebuff=buff;
        if (buff==NULL)
            return TRUE;
    const BYTE *startstream=str;

    for (i=0;i<3;i++)   // go through 3 times, for r,g,b
    {
        short* startbuff=buff;
        const BYTE* stream=startstream+i;
        total=1;
        current = *stream; stream+=3;
        while (total<(len/3))
        {
            count=1;
            while ((total<(len/3)) && (current == (next= *stream)) )
                { count++; total++; stream+=3; }
            if (total<(len/3))
                { next= *stream; stream+=3; total++; }
            buff[0]=count; buff[1]=current;
            buff+=2;
            last=current;
            current=next;
        }
        // get last item if it is a single
        if (current != last)
          {
            buff[0]=count; buff[1]=current;
            buff+=2;
          }

        int chunks=(buff-startbuff)/2;
        if (chunks>(len/6))
        { rle=FALSE; break; }
        else chunkarray[i]=chunks;
    }

    if (!rle)
    {
        PutDebugToken(tokRawStream);
        fprintf(ScriptFile,"%%%0x ", len);
        for (i=0;i<len;i++)
            fprintf(ScriptFile,"%%%0x ",startstream[i]);

    }
    else
    { total=0;
      PutDebugToken(tokRLEstream);
      fprintf(ScriptFile,"%%%0x ",len);
      for (i=0;i<3;i++)
        { count=chunkarray[i];
            for (j=0;j<count;j++)
                fprintf(ScriptFile,"%%%0x %%%0x ",thebuff[total+2*j],thebuff[total+2*j+1]);
          total += count*2;
        }
    }

return FALSE;
}


///////////////////////////////////////////////////////////////////
BOOL AsciiScripter::FindPercent()
// find our token '%'
// return TRUE iff EOF
{
    char c;
    c=fgetc(ScriptFile);
    while ((c!='%') && (c!=EOF))
    {
        c=fgetc(ScriptFile);
    }
    return (c==EOF);
}


char* AsciiScripter::digits()
// includes filtering of CR/LF's
{
    char c;
    char *str=scanner;
    BOOL done=FALSE;

    while (!done)
    {
        c=fgetc(ScriptFile);
        if (((c>='0')&&(c<='9')) ||
            ((c>='a')&&(c<='f')) ||
            ((c>='A')&&(c<='F'))
           )
            *str++ = c;
        else if (c==' ')
                { done=TRUE; *str++=c; }
             else if ((c!=10)&&(c!=13))
                { scanner[0]=0; done=TRUE; }
    }
    *str=0;
    return scanner;
}



void AsciiScripter::ReadRLE(int instreamlen, BYTE* outstream)
// Does run-length-decoding from stream.
{
    int count,total,i,j;
    BYTE b;
    int bi;
    BYTE* buff=(BYTE*)pSys->AllocMem(instreamlen*2,FALSE);
    int colorsize=instreamlen/3;

    // first fill up 3-part buffer with all reds,then all greens, all blues

    for (i=0;i<3;i++)   // for each color
      { total=0;
          while (total<colorsize)
          // assumes correct input, so that total count=instreamlen/3
          {
            if (FindPercent())
                break;
            sscanf(digits(),"%x ",&count);
            if (FindPercent())
                break;
            sscanf(digits(),"%x ",&bi);
            b= (BYTE)bi;
            for (j=0;j<count;j++)
                   buff[ total + (i*colorsize) + j ] = b;
            total+=count;
          }
      }

    // now interleave

    for (i=0;i<(instreamlen/3);i++)
      {
        *outstream++ = buff[i];
        *outstream++ = buff[i+colorsize];
        *outstream++ = buff[i+(2*colorsize)];
      }
    pSys->FreeMem(buff,FALSE);
}


void AsciiScripter::ReadRaw(int instreamlen, BYTE* outstream)
{
    BYTE b; int bi;
    for (int i=0;i<instreamlen;i++)
      { if (FindPercent())
            break;
        sscanf(digits(),"%x ",&bi);
        b=(BYTE)bi;
        *outstream++ = b; }
}


///////////////////////////////////////////////////////////////////
BOOL AsciiScripter::GetDebugToken(int& token)
{
    char c;

    if (GetDebugInt(token))
        return TRUE;
    if ((token<0)||(token>LAST_TOKEN))
        return TRUE;

    // now expect LF<string>LF
    c=fgetc(ScriptFile);
    if (c!=10)
        return TRUE;

    while ( (c=fgetc(ScriptFile))!=10) ;
    // successfully ate debug string

    ReplayTokenCount++;

 return FALSE;
}


BOOL AsciiScripter::GetDebugInt(int& data)
{ int res,k;

    if (FindPercent())
      { data=-1; return TRUE; }

    res = sscanf(digits(),"%x ",&k);
    if (!res)
        data = -1;
    else data=k;
 return FALSE;
}


BOOL AsciiScripter::GetDebugByte(BYTE& data)
{
    int temp;
    BOOL res=GetDebugInt(temp);
    if (res)
        return TRUE;
    data=temp;
    return FALSE;
}


BOOL AsciiScripter::GetDebugString(char*& str,int& length)
{
    int res,len,i;
    str=NULL;   // in case of err rtn

    for (i=0; i<TEMPLEN; i++)
        tempStr[i]=0;

    GetDebugInt(res);   // look for tokCharPtr
    if (res != tokCharPtr)
        return TRUE;
    GetDebugInt(len);   // get length

    if (len >= TEMPLEN)
        return TRUE;

    char c=fgetc(ScriptFile);
    if (c!='"')
        return TRUE;
    i=0;
    tempStr[i]=fgetc(ScriptFile);
    while ((i<TEMPLEN) && (tempStr[i] != '"'))
        tempStr[++i]=fgetc(ScriptFile);

    if ((i==TEMPLEN) || (i!=len))
        return TRUE;

    tempStr[i]=0;
    str=tempStr;
    length=len;

    return FALSE;
}


BOOL AsciiScripter::GetDebugStream(const unsigned int buffersize, BYTE*& buffer)
{
    BYTE tok;
    int token;

    GetDebugToken(token);
    if (token == tokStream)
    {
        buffer = (BYTE*)pSys->AllocMem(buffersize,FALSE);
        if (buffer==NULL)
            return TRUE;
        int len;

        GetDebugInt(len);
        if (len==0)
            return FALSE;
        if (((unsigned int)len) != buffersize)
            return TRUE;

        for (int i=0; i < len; i++)
        {
            GetDebugByte(tok);
            buffer[i] = tok;
        }
    }
    else if ((token == tokRLEstream) || (token == tokRawStream))
          {
            int len;

            GetDebugInt(len);
            if (len==0)
                buffer=NULL;
            else
            {
                buffer = (BYTE*)pSys->AllocMem(len,FALSE);
                if (token == tokRLEstream)
                    ReadRLE(len, buffer);
                else ReadRaw(len, buffer);
            }
          }
        else return TRUE;

 return FALSE;
}


/////////////////////////////////////////////////////////////////////
BOOL BinaryScripter::OpenDebugStreamR(const char* FileName)
{
    strncpy(ScriptFileName,FileName, sizeof(ScriptFileName)-1);

    ScriptFile = fopen(ScriptFileName, "rb");

    if (ScriptFile == NULL)
        return TRUE;

    int x;
    if (GetDebugInt(x))
        return TRUE;
    TokenCount=x;
    ReplayTokenCount=0;
    fontcount=0;

    char *ver;
    if (GetDebugString(ver,x))
        return TRUE;

    if (ParseVer(ver))
        return TRUE;

  return FALSE;
}


BOOL BinaryScripter::OpenDebugStreamW(const char* FileName)
{
    strncpy(ScriptFileName,FileName, sizeof(ScriptFileName)-1);
    ScriptFile = fopen(ScriptFileName, "wb");

    if (ScriptFile == NULL)
        return TRUE;

    pSys->Capturing=TRUE;
    TokenCount=0;
    fontcount=0;

    PutDebugInt(-1);  // leave space for token count

    char version[TEMPLEN];
    sprintf(version, Version(FALSE) );
    int len = strlen(version);

    if (PutDebugString(version, len))
        return TRUE;

    return FALSE;
}

BOOL BinaryScripter::PutDebugToken(const int token)
{
    TokenCount++;

   return PutDebugByte(token);
}


BOOL BinaryScripter::PutDebugInt(const int data)
{
    int res=fwrite( &data, sizeof(int), 1, ScriptFile );
  return (res == EOF);
}


BOOL BinaryScripter::PutDebugByte(const BYTE data)
{
    int res=fputc( data, ScriptFile );
  return (res == EOF);
}


BOOL BinaryScripter::PutDebugString(const char* str,const int len)
{
   if (PutDebugToken(tokCharPtr))
       return TRUE;
   if (PutDebugInt(len))
       return TRUE;

   for (int i=0; i < len; i++)
        if ((fputc(str[i],ScriptFile))==EOF)
            return TRUE;

return FALSE;
}

BOOL BinaryScripter::PutDebugStream(const BYTE* str,const int len)
{
   if (PutDebugToken(tokStream))
       return TRUE;
   if (PutDebugInt(len))
       return TRUE;

   for (int i=0; i < len; i++)
        if ((fputc(str[i],ScriptFile))==EOF)
            return TRUE;

return FALSE;
}


BOOL BinaryScripter::GetDebugToken(int& token)
{
    BYTE b;
    if (GetDebugByte(b))
        return TRUE;
    token=b;
    if (token>LAST_TOKEN)
        return TRUE;

    ReplayTokenCount++;

 return FALSE;
}


BOOL BinaryScripter::GetDebugInt(int& data)
{
    int temp;
    int res = fread(&temp, sizeof(int), 1, ScriptFile);
    data=temp;
    return (res<1);
}


BOOL BinaryScripter::GetDebugByte(BYTE& data)
{
    data=fgetc(ScriptFile);
 return FALSE;
}


BOOL BinaryScripter::GetDebugString(char*& str,int& length)
{
    int res,len,i;
    str=NULL;   // in case of err rtn

    for (i=0; i<TEMPLEN; i++)
        tempStr[i]=0;

    GetDebugToken(res); // look for tokCharPtr
    if (res != tokCharPtr)
        return TRUE;
    GetDebugInt(len);   // get length

    if (len >= TEMPLEN)
        return TRUE;

    for (i=0; i<len; i++)
        if ((tempStr[i]=fgetc(ScriptFile))==EOF)
            return TRUE;

    tempStr[i]=0;
    str=tempStr;
    length=len;

    return FALSE;
}


BOOL BinaryScripter::GetDebugStream(const unsigned int buffersize, BYTE*& buffer)
{
    int token;
    BYTE tok;

    GetDebugToken(token);
    if (token != tokStream)
        return TRUE;

    buffer = (BYTE*)pSys->AllocMem(buffersize,FALSE);
    if (buffer==NULL)
        return TRUE;
    int len;

    GetDebugInt(len);
    if (len==0)
    {
        pSys->FreeMem(buffer,FALSE);
        buffer=NULL;
        return FALSE;
    }
    if (((unsigned int)len) != buffersize)
        return TRUE;

    for (int i=0; i < len; i++)
    {
        GetDebugByte(tok);
        buffer[i] = tok;
    }

    return FALSE;
}

APDK_END_NAMESPACE

#endif //APDK_CAPTURE