1 files changed, 317 insertions, 0 deletions
diff --git a/kfile-plugins/dds/kfile_dds.cpp b/kfile-plugins/dds/kfile_dds.cpp
new file mode 100644
index 00000000..dd7f8f1e
--- /dev/null
+++ b/kfile-plugins/dds/kfile_dds.cpp
@@ -0,0 +1,317 @@
+/* This file is part of the KDE project
+ * Copyright (C) 2002 Ignacio Castaño <castano@ludicon.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation version 2.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include <config.h>
+#include "kfile_dds.h"
+
+#include <kprocess.h>
+#include <klocale.h>
+#include <kgenericfactory.h>
+#include <kstringvalidator.h>
+#include <kdebug.h>
+
+#include <qdict.h>
+#include <qvalidator.h>
+#include <qcstring.h>
+#include <qfile.h>
+#include <qdatetime.h>
+
+
+typedef KGenericFactory<KDdsPlugin> DdsFactory;
+
+typedef Q_UINT32 uint;
+typedef Q_UINT16 ushort;
+typedef Q_UINT8 uchar;
+
+namespace {	// Private.
+
+#if !defined(MAKEFOURCC)
+#	define MAKEFOURCC(ch0, ch1, ch2, ch3) \
+		(uint(uchar(ch0)) | (uint(uchar(ch1)) << 8) | \
+		(uint(uchar(ch2)) << 16) | (uint(uchar(ch3)) << 24 ))
+#endif
+
+	static const uint FOURCC_DDS = MAKEFOURCC('D', 'D', 'S', ' ');
+	static const uint FOURCC_DXT1 = MAKEFOURCC('D', 'X', 'T', '1');
+	static const uint FOURCC_DXT2 = MAKEFOURCC('D', 'X', 'T', '2');
+	static const uint FOURCC_DXT3 = MAKEFOURCC('D', 'X', 'T', '3');
+	static const uint FOURCC_DXT4 = MAKEFOURCC('D', 'X', 'T', '4');
+	static const uint FOURCC_DXT5 = MAKEFOURCC('D', 'X', 'T', '5');
+	static const uint FOURCC_RXGB = MAKEFOURCC('R', 'X', 'G', 'B');
+
+	static const uint DDSD_CAPS = 0x00000001l;
+	static const uint DDSD_PIXELFORMAT = 0x00001000l;
+	static const uint DDSD_WIDTH = 0x00000004l;
+	static const uint DDSD_HEIGHT = 0x00000002l;
+	static const uint DDSD_PITCH = 0x00000008l;
+
+	static const uint DDSCAPS_TEXTURE = 0x00001000l;
+	static const uint DDSCAPS2_VOLUME = 0x00200000l;
+	static const uint DDSCAPS2_CUBEMAP = 0x00000200l;
+
+	static const uint DDPF_RGB = 0x00000040l;
+ 	static const uint DDPF_FOURCC = 0x00000004l;
+ 	static const uint DDPF_ALPHAPIXELS = 0x00000001l;
+
+	enum DDSType {
+		DDS_A8R8G8B8 = 0,
+		DDS_A1R5G5B5 = 1,
+		DDS_A4R4G4B4 = 2,
+		DDS_R8G8B8 = 3,
+		DDS_R5G6B5 = 4,
+		DDS_DXT1 = 5,
+		DDS_DXT2 = 6,
+		DDS_DXT3 = 7,
+		DDS_DXT4 = 8,
+		DDS_DXT5 = 9,
+		DDS_RXGB = 10,
+		DDS_UNKNOWN
+	};
+
+
+	struct DDSPixelFormat {
+		uint size;
+		uint flags;
+		uint fourcc;
+		uint bitcount;
+		uint rmask;
+		uint gmask;
+		uint bmask;
+		uint amask;
+	};
+
+	QDataStream & operator>> ( QDataStream & s, DDSPixelFormat & pf )
+	{
+		s >> pf.size;
+		s >> pf.flags;
+		s >> pf.fourcc;
+		s >> pf.bitcount;
+		s >> pf.rmask;
+		s >> pf.gmask;
+		s >> pf.bmask;
+		s >> pf.amask;
+		return s;
+	}
+
+	struct DDSCaps {
+		uint caps1;
+		uint caps2;
+		uint caps3;
+		uint caps4;
+	};
+
+	QDataStream & operator>> ( QDataStream & s, DDSCaps & caps )
+	{
+		s >> caps.caps1;
+		s >> caps.caps2;
+		s >> caps.caps3;
+		s >> caps.caps4;
+		return s;
+	}
+
+	struct DDSHeader {
+		uint size;
+		uint flags;
+		uint height;
+		uint width;
+		uint pitch;
+		uint depth;
+		uint mipmapcount;
+		uint reserved[11];
+		DDSPixelFormat pf;
+		DDSCaps caps;
+		uint notused;
+	};
+
+	QDataStream & operator>> ( QDataStream & s, DDSHeader & header )
+	{
+		s >> header.size;
+		s >> header.flags;
+		s >> header.height;
+		s >> header.width;
+		s >> header.pitch;
+		s >> header.depth;
+		s >> header.mipmapcount;
+		for( int i = 0; i < 11; i++ ) {
+			s >> header.reserved[i];
+		}
+		s >> header.pf;
+		s >> header.caps;
+		s >> header.notused;
+		return s;
+	}
+
+	static bool IsValid( const DDSHeader & header )
+	{
+		if( header.size != 124 ) {
+			return false;
+		}
+		const uint required = (DDSD_WIDTH|DDSD_HEIGHT|DDSD_CAPS|DDSD_PIXELFORMAT);
+		if( (header.flags & required) != required ) {
+			return false;
+		}
+		if( header.pf.size != 32 ) {
+			return false;
+		}
+		if( !(header.caps.caps1 & DDSCAPS_TEXTURE) ) {
+			return false;
+		}
+		return true;
+	}
+	
+} // namespace
+
+
+
+K_EXPORT_COMPONENT_FACTORY(kfile_dds, DdsFactory( "kfile_dds" ))
+
+// Constructor, init mime type info.
+KDdsPlugin::KDdsPlugin(QObject *parent, const char *name, const QStringList &args) : 
+	KFilePlugin(parent, name, args)
+{
+    KFileMimeTypeInfo * info = addMimeTypeInfo( "image/x-dds" );
+
+    KFileMimeTypeInfo::GroupInfo * group = 0L;
+
+    group = addGroupInfo(info, "Technical", i18n("Technical Details"));
+
+    KFileMimeTypeInfo::ItemInfo * item;
+
+    item = addItemInfo(group, "Dimensions", i18n("Dimensions"), QVariant::Size);
+    setHint(item, KFileMimeTypeInfo::Size);
+    setUnit(item, KFileMimeTypeInfo::Pixels);
+
+	item = addItemInfo(group, "Depth", i18n("Depth"), QVariant::Int);
+	setUnit(item, KFileMimeTypeInfo::Pixels);
+	
+    item = addItemInfo(group, "BitDepth", i18n("Bit Depth"), QVariant::Int);
+    setUnit(item, KFileMimeTypeInfo::BitsPerPixel);
+
+	addItemInfo(group, "MipmapCount", i18n("Mipmap Count"), QVariant::Int);
+	
+	addItemInfo(group, "Type", i18n("Type"), QVariant::String);
+    addItemInfo(group, "ColorMode", i18n("Color Mode"), QVariant::String);
+    addItemInfo(group, "Compression", i18n("Compression"), QVariant::String);
+}
+
+// Read mime type info.
+bool KDdsPlugin::readInfo( KFileMetaInfo& info, uint /*what*/)
+{
+	QFile file(info.path());
+
+	if (!file.open(IO_ReadOnly)) {
+		kdDebug(7034) << "Couldn't open " << QFile::encodeName(info.path()) << endl;
+		return false;
+	}
+
+	QDataStream s(&file);
+	s.setByteOrder(QDataStream::LittleEndian);
+
+	// Validate header.
+	uint fourcc;
+	s >> fourcc;
+	if( fourcc != FOURCC_DDS ) {
+		kdDebug(7034) << QFile::encodeName(info.path()) << " is not a DDS file." << endl;
+		return false;
+	}
+
+	// Read image header.
+	DDSHeader header;
+	s >> header;
+
+	// Check image file format.
+	if( s.atEnd() || !IsValid( header ) ) {
+		kdDebug(7034) << QFile::encodeName(info.path()) << " is not a valid DDS file." << endl;
+		return false;
+	}
+
+	// Set file info.
+	KFileMetaInfoGroup group = appendGroup(info, "Technical");
+ 	appendItem(group, "Dimensions", QSize(header.width, header.height));
+	appendItem(group, "MipmapCount", header.mipmapcount);
+	
+	// Set file type.
+	if( header.caps.caps2 & DDSCAPS2_CUBEMAP ) {
+		appendItem(group, "Type", i18n("Cube Map Texture"));
+	}
+	else if( header.caps.caps2 & DDSCAPS2_VOLUME ) {
+		appendItem(group, "Type", i18n("Volume Texture"));
+		appendItem(group, "Depth", header.depth);
+	}
+	else {
+		appendItem(group, "Type", i18n("2D Texture"));
+	}
+
+	// Set file color depth and compression.
+	if( header.pf.flags & DDPF_RGB ) {
+		appendItem(group, "BitDepth", header.pf.bitcount);
+		appendItem(group, "Compression", i18n("Uncompressed"));
+		if( header.pf.flags & DDPF_ALPHAPIXELS ) {
+			appendItem(group, "ColorMode", "RGB/Alpha");
+		}
+		else {
+			appendItem(group, "ColorMode", "RGB");
+		}
+	}
+	else if( header.pf.flags & DDPF_FOURCC ) {
+		switch( header.pf.fourcc ) {
+			case FOURCC_DXT1:
+				appendItem(group, "BitDepth", 4);
+				appendItem(group, "Compression", "DXT1");
+				appendItem(group, "ColorMode", "RGB");
+				break;
+			case FOURCC_DXT2:
+				appendItem(group, "BitDepth", 16);
+				appendItem(group, "Compression", "DXT2");
+				appendItem(group, "ColorMode", "RGB/Alpha");
+				break;
+			case FOURCC_DXT3:
+				appendItem(group, "BitDepth", 16);
+				appendItem(group, "Compression", "DXT3");
+				appendItem(group, "ColorMode", "RGB/Alpha");
+				break;
+			case FOURCC_DXT4:
+				appendItem(group, "BitDepth", 16);
+				appendItem(group, "Compression", "DXT4");
+				appendItem(group, "ColorMode", "RGB/Alpha");
+				break;
+			case FOURCC_DXT5:
+				appendItem(group, "BitDepth", 16);
+				appendItem(group, "Compression", "DXT5");
+				appendItem(group, "ColorMode", "RGB/Alpha");
+				break;
+			case FOURCC_RXGB:
+				appendItem(group, "BitDepth", 16);
+				appendItem(group, "Compression", "RXGB");
+				appendItem(group, "ColorMode", "RGB");
+				break;
+			default:
+				appendItem(group, "Compression", "Unknown");
+				break;
+		}
+	}
+	else {
+		appendItem(group, "Compression", "Unknown");
+	}
+
+    return true;
+}
+
+#include "kfile_dds.moc"
+