Compression Class Reference

#include <compression.h>

Static Public Member Functions
static QByteArray	compress (QByteArray bytes, psd_compression_type compressionType, int row_size=0, int color_depth=0)
static QByteArray	uncompress (int unpacked_len, QByteArray bytes, psd_compression_type compressionType, int row_size=0, int color_depth=0)

Detailed Description

Definition at line 15 of file compression.h.

Member Function Documentation

compress()

QByteArray Compression::compress ( QByteArray bytes, psd_compression_type compressionType, int row_size = 0, int color_depth = 0 )

static

Definition at line 397 of file compression.cpp.

{
    if (bytes.size() < 1)
        return QByteArray();
 
    switch (compressionType) {
    case Uncompressed:
        return bytes;
    case RLE:
        return KisRLE::compress(bytes);
    case ZIP:
        return KisZip::compress(bytes);
    case ZIPWithPrediction:
        return KisZip::psd_zip_with_prediction(bytes, row_size, color_depth);
    default:
        qFatal("Cannot compress layer data: invalid compression type");
    }
 
    return QByteArray();
}

References KisZip::compress(), KisRLE::compress(), KisZip::psd_zip_with_prediction(), RLE, Uncompressed, ZIP, and ZIPWithPrediction.

uncompress()

QByteArray Compression::uncompress ( int unpacked_len, QByteArray bytes, psd_compression_type compressionType, int row_size = 0, int color_depth = 0 )

static

Definition at line 376 of file compression.cpp.

{
    if (bytes.size() < 1)
        return QByteArray();
 
    switch (compressionType) {
    case Uncompressed:
        return bytes;
    case RLE:
        return KisRLE::decompress(bytes, unpacked_len);
    case ZIP:
        return KisZip::decompress(bytes, unpacked_len);
    case ZIPWithPrediction:
        return KisZip::psd_unzip_with_prediction(bytes, unpacked_len, row_size, color_depth);
    default:
        qFatal("Cannot uncompress layer data: invalid compression type");
    }
 
    return QByteArray();
}

References KisZip::decompress(), KisRLE::decompress(), KisZip::psd_unzip_with_prediction(), RLE, Uncompressed, ZIP, and ZIPWithPrediction.

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The documentation for this class was generated from the following files:

• libs/psdutils/compression.h
• libs/psdutils/compression.cpp