Current File : //usr/tmp/par-streamof/cache-019bf52da828c7d4df54624dfe058723871c67b9/438d4536.pm

#line 1 "/usr/local/lib/perl5/site_perl/5.8.8/IO/Compress/RawDeflate.pm"
package IO::Compress::RawDeflate ;

# create RFC1951
#
use strict ;
use warnings;
use bytes;


use IO::Compress::Base 2.008 ;
use IO::Compress::Base::Common  2.008 qw(:Status createSelfTiedObject);
use IO::Compress::Adapter::Deflate  2.008 ;

require Exporter ;


our ($VERSION, @ISA, @EXPORT_OK, %DEFLATE_CONSTANTS, %EXPORT_TAGS, $RawDeflateError);

$VERSION = '2.008';
$RawDeflateError = '';

@ISA = qw(Exporter IO::Compress::Base);
@EXPORT_OK = qw( $RawDeflateError rawdeflate ) ;

%EXPORT_TAGS = ( flush     => [qw{  
                                    Z_NO_FLUSH
                                    Z_PARTIAL_FLUSH
                                    Z_SYNC_FLUSH
                                    Z_FULL_FLUSH
                                    Z_FINISH
                                    Z_BLOCK
                              }],
                 level     => [qw{  
                                    Z_NO_COMPRESSION
                                    Z_BEST_SPEED
                                    Z_BEST_COMPRESSION
                                    Z_DEFAULT_COMPRESSION
                              }],
                 strategy  => [qw{  
                                    Z_FILTERED
                                    Z_HUFFMAN_ONLY
                                    Z_RLE
                                    Z_FIXED
                                    Z_DEFAULT_STRATEGY
                              }],

              );

{
    my %seen;
    foreach (keys %EXPORT_TAGS )
    {
        push @{$EXPORT_TAGS{constants}}, 
                 grep { !$seen{$_}++ } 
                 @{ $EXPORT_TAGS{$_} }
    }
    $EXPORT_TAGS{all} = $EXPORT_TAGS{constants} ;
}


%DEFLATE_CONSTANTS = %EXPORT_TAGS;

push @{ $EXPORT_TAGS{all} }, @EXPORT_OK ;

Exporter::export_ok_tags('all');
              


sub new
{
    my $class = shift ;

    my $obj = createSelfTiedObject($class, \$RawDeflateError);

    return $obj->_create(undef, @_);
}

sub rawdeflate
{
    my $obj = createSelfTiedObject(undef, \$RawDeflateError);
    return $obj->_def(@_);
}

sub ckParams
{
    my $self = shift ;
    my $got = shift;

    return 1 ;
}

sub mkComp
{
    my $self = shift ;
    my $class = shift ;
    my $got = shift ;

    my ($obj, $errstr, $errno) = IO::Compress::Adapter::Deflate::mkCompObject(
                                                 $got->value('CRC32'),
                                                 $got->value('Adler32'),
                                                 $got->value('Level'),
                                                 $got->value('Strategy')
                                                 );

   return $self->saveErrorString(undef, $errstr, $errno)
       if ! defined $obj;

   return $obj;    
}


sub mkHeader
{
    my $self = shift ;
    return '';
}

sub mkTrailer
{
    my $self = shift ;
    return '';
}

sub mkFinalTrailer
{
    return '';
}


#sub newHeader
#{
#    my $self = shift ;
#    return '';
#}

sub getExtraParams
{
    my $self = shift ;
    return $self->getZlibParams();
}

sub getZlibParams
{
    my $self = shift ;

    use IO::Compress::Base::Common  2.008 qw(:Parse);
    use Compress::Raw::Zlib  2.008 qw(Z_DEFLATED Z_DEFAULT_COMPRESSION Z_DEFAULT_STRATEGY);

    
    return (
        
            # zlib behaviour
            #'Method'   => [0, 1, Parse_unsigned,  Z_DEFLATED],
            'Level'     => [0, 1, Parse_signed,    Z_DEFAULT_COMPRESSION],
            'Strategy'  => [0, 1, Parse_signed,    Z_DEFAULT_STRATEGY],

            'CRC32'     => [0, 1, Parse_boolean,   0],
            'ADLER32'   => [0, 1, Parse_boolean,   0],
            'Merge'     => [1, 1, Parse_boolean,   0],
        );
    
    
}

sub getInverseClass
{
    return ('IO::Uncompress::RawInflate', 
                \$IO::Uncompress::RawInflate::RawInflateError);
}

sub getFileInfo
{
    my $self = shift ;
    my $params = shift;
    my $file = shift ;
    
}

use IO::Seekable qw(SEEK_SET);

sub createMerge
{
    my $self = shift ;
    my $outValue = shift ;
    my $outType = shift ;

    my ($invClass, $error_ref) = $self->getInverseClass();
    eval "require $invClass" 
        or die "aaaahhhh" ;

    my $inf = $invClass->new( $outValue, 
                             Transparent => 0, 
                             #Strict     => 1,
                             AutoClose   => 0,
                             Scan        => 1)
       or return $self->saveErrorString(undef, "Cannot create InflateScan object: $$error_ref" ) ;

    my $end_offset = 0;
    $inf->scan() 
        or return $self->saveErrorString(undef, "Error Scanning: $$error_ref", $inf->errorNo) ;
    $inf->zap($end_offset) 
        or return $self->saveErrorString(undef, "Error Zapping: $$error_ref", $inf->errorNo) ;

    my $def = *$self->{Compress} = $inf->createDeflate();

    *$self->{Header} = *$inf->{Info}{Header};
    *$self->{UnCompSize} = *$inf->{UnCompSize}->clone();
    *$self->{CompSize} = *$inf->{CompSize}->clone();
    # TODO -- fix this
    #*$self->{CompSize} = new U64(0, *$self->{UnCompSize_32bit});


    if ( $outType eq 'buffer') 
      { substr( ${ *$self->{Buffer} }, $end_offset) = '' }
    elsif ($outType eq 'handle' || $outType eq 'filename') {
        *$self->{FH} = *$inf->{FH} ;
        delete *$inf->{FH};
        *$self->{FH}->flush() ;
        *$self->{Handle} = 1 if $outType eq 'handle';

        #seek(*$self->{FH}, $end_offset, SEEK_SET) 
        *$self->{FH}->seek($end_offset, SEEK_SET) 
            or return $self->saveErrorString(undef, $!, $!) ;
    }

    return $def ;
}

#### zlib specific methods

sub deflateParams 
{
    my $self = shift ;

    my $level = shift ;
    my $strategy = shift ;

    my $status = *$self->{Compress}->deflateParams(Level => $level, Strategy => $strategy) ;
    return $self->saveErrorString(0, *$self->{Compress}{Error}, *$self->{Compress}{ErrorNo})
        if $status == STATUS_ERROR;

    return 1;    
}




1;

__END__

#line 1089