class TCPDF_FILTERS


Located at : UKNOWVA_ROOT/libraries/tcpdf/tcpdf_filters.php

Methods

(array)
getAvailableFilters()

Get a list of available decoding filters.

Decoded
decodeFilter($filter, $data)

Decode data using the specified filter type.

Decoded
decodeFilterStandard($data)

Standard Default decoding filter (leaves data unchanged).

Decoded
decodeFilterASCIIHexDecode($data)

ASCIIHexDecode Decodes data encoded in an ASCII hexadecimal representation, reproducing the original binary data.

Decoded
decodeFilterASCII85Decode($data)

ASCII85Decode Decodes data encoded in an ASCII base-85 representation, reproducing the original binary data.

Decoded
decodeFilterLZWDecode($data)

LZWDecode Decompresses data encoded using the LZW (Lempel-Ziv-Welch) adaptive compression method, reproducing the original text or binary data.

Decoded
decodeFilterFlateDecode($data)

FlateDecode Decompresses data encoded using the zlib/deflate compression method, reproducing the original text or binary data.

decodeFilterRunLengthDecode($data)

RunLengthDecode Decompresses data encoded using a byte-oriented run-length encoding algorithm.

Decoded
decodeFilterCCITTFaxDecode($data)

CCITTFaxDecode (NOT IMPLEMETED) Decompresses data encoded using the CCITT facsimile standard, reproducing the original data (typically monochrome image data at 1 bit per pixel).

Decoded
decodeFilterJBIG2Decode($data)

JBIG2Decode (NOT IMPLEMETED) Decompresses data encoded using the JBIG2 standard, reproducing the original monochrome (1 bit per pixel) image data (or an approximation of that data).

Decoded
decodeFilterDCTDecode($data)

DCTDecode (NOT IMPLEMETED) Decompresses data encoded using a DCT (discrete cosine transform) technique based on the JPEG standard, reproducing image sample data that approximates the original data.

Decoded
decodeFilterJPXDecode($data)

JPXDecode (NOT IMPLEMETED) Decompresses data encoded using the wavelet-based JPEG2000 standard, reproducing the original image data.

Decoded
decodeFilterCrypt($data)

Crypt (NOT IMPLEMETED) Decrypts data encrypted by a security handler, reproducing the data as it was before encryption.

Error($msg)

This method is automatically called in case of fatal error; it simply outputs the message and halts the execution.

Details

at line 67
(array) getAvailableFilters()

Get a list of available decoding filters.

Return Value

(array) Array of available filter decoders.

at line 79
Decoded decodeFilter($filter, $data)

Decode data using the specified filter type.

Parameters

$filter (string) Filter name.
$data (string) Data to decode.

Return Value

Decoded data string.

at line 138
Decoded decodeFilterStandard($data)

Standard Default decoding filter (leaves data unchanged).

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 150
Decoded decodeFilterASCIIHexDecode($data)

ASCIIHexDecode Decodes data encoded in an ASCII hexadecimal representation, reproducing the original binary data.

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 190
Decoded decodeFilterASCII85Decode($data)

ASCII85Decode Decodes data encoded in an ASCII base-85 representation, reproducing the original binary data.

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 274
Decoded decodeFilterLZWDecode($data)

LZWDecode Decompresses data encoded using the LZW (Lempel-Ziv-Welch) adaptive compression method, reproducing the original text or binary data.

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 355
Decoded decodeFilterFlateDecode($data)

FlateDecode Decompresses data encoded using the zlib/deflate compression method, reproducing the original text or binary data.

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 371
decodeFilterRunLengthDecode($data)

RunLengthDecode Decompresses data encoded using a byte-oriented run-length encoding algorithm.

Parameters

$data (string) Data to decode.

at line 408
Decoded decodeFilterCCITTFaxDecode($data)

CCITTFaxDecode (NOT IMPLEMETED) Decompresses data encoded using the CCITT facsimile standard, reproducing the original data (typically monochrome image data at 1 bit per pixel).

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 420
Decoded decodeFilterJBIG2Decode($data)

JBIG2Decode (NOT IMPLEMETED) Decompresses data encoded using the JBIG2 standard, reproducing the original monochrome (1 bit per pixel) image data (or an approximation of that data).

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 432
Decoded decodeFilterDCTDecode($data)

DCTDecode (NOT IMPLEMETED) Decompresses data encoded using a DCT (discrete cosine transform) technique based on the JPEG standard, reproducing image sample data that approximates the original data.

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 444
Decoded decodeFilterJPXDecode($data)

JPXDecode (NOT IMPLEMETED) Decompresses data encoded using the wavelet-based JPEG2000 standard, reproducing the original image data.

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 456
Decoded decodeFilterCrypt($data)

Crypt (NOT IMPLEMETED) Decrypts data encrypted by a security handler, reproducing the data as it was before encryption.

Parameters

$data (string) Data to decode.

Return Value

Decoded data string.

at line 468
Error($msg)

This method is automatically called in case of fatal error; it simply outputs the message and halts the execution.

Parameters

$msg (string) The error message