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-rw-r--r--kfile-plugins/dds/kfile_dds.cpp317
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diff --git a/kfile-plugins/dds/kfile_dds.cpp b/kfile-plugins/dds/kfile_dds.cpp
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+/* This file is part of the KDE project
+ * Copyright (C) 2002 Ignacio Casta�o <[email protected]>
+ *
+ * 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"
+