1 files changed, 97 insertions, 0 deletions
diff --git a/kimgio/rgb.h b/kimgio/rgb.h
new file mode 100644
index 000000000..224d22cc8
--- /dev/null
+++ b/kimgio/rgb.h
@@ -0,0 +1,97 @@
+// kimgio module for SGI images
+//
+// Copyright (C) 2004  Melchior FRANZ  <mfranz@kde.org>
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the Lesser GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+
+
+#ifndef KIMG_RGB_H
+#define KIMG_RGB_H
+
+#include <qmap.h>
+#include <qptrvector.h>
+
+
+class QImage;
+class QImageIO;
+
+extern "C" {
+void kimgio_rgb_read(QImageIO *);
+void kimgio_rgb_write(QImageIO *);
+}
+
+
+class RLEData : public QMemArray<uchar> {
+public:
+	RLEData() {}
+	RLEData(const uchar *d, uint l, uint o) : m_offset(o) { duplicate(d, l); }
+	bool operator<(const RLEData&) const;
+	void write(QDataStream& s);
+	void print(QString) const;				// TODO remove
+	uint offset() { return m_offset; }
+private:
+	uint			m_offset;
+};
+
+
+class RLEMap : public QMap<RLEData, uint> {
+public:
+	RLEMap() : m_counter(0), m_offset(0) {}
+	uint insert(const uchar *d, uint l);
+	QPtrVector<RLEData> vector();
+	void setBaseOffset(uint o) { m_offset = o; }
+private:
+	uint			m_counter;
+	uint			m_offset;
+};
+
+
+class SGIImage {
+public:
+	SGIImage(QImageIO *);
+	~SGIImage();
+
+	bool readImage(QImage&);
+	bool writeImage(QImage&);
+
+private:
+	enum { NORMAL, DITHERED, SCREEN, COLORMAP };		// colormap
+	QImageIO		*m_io;
+	QIODevice		*m_dev;
+	QDataStream		m_stream;
+
+	Q_UINT8			m_rle;
+	Q_UINT8			m_bpc;
+	Q_UINT16		m_dim;
+	Q_UINT16		m_xsize;
+	Q_UINT16		m_ysize;
+	Q_UINT16		m_zsize;
+	Q_UINT32		m_pixmin;
+	Q_UINT32		m_pixmax;
+	char			m_imagename[80];
+	Q_UINT32		m_colormap;
+
+	Q_UINT32		*m_starttab;
+	Q_UINT32		*m_lengthtab;
+	QByteArray		m_data;
+	QByteArray::Iterator	m_pos;
+	RLEMap			m_rlemap;
+	QPtrVector<RLEData>	m_rlevector;
+	uint			m_numrows;
+
+	bool readData(QImage&);
+	bool getRow(uchar *dest);
+
+	void writeHeader();
+	void writeRle();
+	void writeVerbatim(const QImage&);
+	bool scanData(const QImage&);
+	uint compact(uchar *, uchar *);
+	uchar intensity(uchar);
+};
+
+#endif
+