diff options
Diffstat (limited to 'kfile-plugins/dds/kfile_dds.cpp')
-rw-r--r-- | kfile-plugins/dds/kfile_dds.cpp | 317 |
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 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" + |