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98 lines
1.9 KiB
98 lines
1.9 KiB
15 years ago
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// kimgio module for SGI images
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//
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// Copyright (C) 2004 Melchior FRANZ <mfranz@kde.org>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the Lesser GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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#ifndef KIMG_RGB_H
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#define KIMG_RGB_H
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#include <qmap.h>
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#include <qptrvector.h>
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class QImage;
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class QImageIO;
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extern "C" {
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void kimgio_rgb_read(QImageIO *);
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void kimgio_rgb_write(QImageIO *);
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}
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class RLEData : public QMemArray<uchar> {
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public:
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RLEData() {}
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RLEData(const uchar *d, uint l, uint o) : m_offset(o) { duplicate(d, l); }
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bool operator<(const RLEData&) const;
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void write(QDataStream& s);
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void print(QString) const; // TODO remove
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uint offset() { return m_offset; }
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private:
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uint m_offset;
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};
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class RLEMap : public QMap<RLEData, uint> {
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public:
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RLEMap() : m_counter(0), m_offset(0) {}
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uint insert(const uchar *d, uint l);
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QPtrVector<RLEData> vector();
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void setBaseOffset(uint o) { m_offset = o; }
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private:
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uint m_counter;
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uint m_offset;
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};
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class SGIImage {
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public:
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SGIImage(QImageIO *);
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~SGIImage();
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bool readImage(QImage&);
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bool writeImage(QImage&);
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private:
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enum { NORMAL, DITHERED, SCREEN, COLORMAP }; // colormap
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QImageIO *m_io;
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QIODevice *m_dev;
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QDataStream m_stream;
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Q_UINT8 m_rle;
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Q_UINT8 m_bpc;
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Q_UINT16 m_dim;
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Q_UINT16 m_xsize;
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Q_UINT16 m_ysize;
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Q_UINT16 m_zsize;
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Q_UINT32 m_pixmin;
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Q_UINT32 m_pixmax;
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char m_imagename[80];
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Q_UINT32 m_colormap;
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Q_UINT32 *m_starttab;
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Q_UINT32 *m_lengthtab;
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QByteArray m_data;
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QByteArray::Iterator m_pos;
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RLEMap m_rlemap;
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QPtrVector<RLEData> m_rlevector;
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uint m_numrows;
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bool readData(QImage&);
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bool getRow(uchar *dest);
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void writeHeader();
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void writeRle();
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void writeVerbatim(const QImage&);
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bool scanData(const QImage&);
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uint compact(uchar *, uchar *);
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uchar intensity(uchar);
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};
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#endif
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