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diff --git a/kioslave/thumbnail/exrcreator.cpp b/kioslave/thumbnail/exrcreator.cpp
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+/* This file is part of the KDE libraries
+ Copyright (C) 2004 Brad Hards <bradh@frogmouth.net>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#include <qimage.h>
+
+#include <kimageio.h>
+#include <kdebug.h>
+#include <kconfig.h>
+#include <kglobal.h>
+#include <qfile.h>
+
+#include <ImfInputFile.h>
+#include <ImfPreviewImage.h>
+
+#include "exrcreator.h"
+
+extern "C"
+{
+ KDE_EXPORT ThumbCreator *new_creator()
+ {
+ return new EXRCreator;
+ }
+}
+
+bool EXRCreator::create(const QString &path, int, int, QImage &img)
+{
+ Imf::InputFile in ( path.ascii() );
+ const Imf::Header &h = in.header();
+
+ if ( h.hasPreviewImage() ) {
+ kdDebug() << "EXRcreator - using preview" << endl;
+ const Imf::PreviewImage &preview = in.header().previewImage();
+ QImage qpreview(preview.width(), preview.height(), 32, 0, QImage::BigEndian);
+ for ( unsigned int y=0; y < preview.height(); y++ ) {
+ for ( unsigned int x=0; x < preview.width(); x++ ) {
+ const Imf::PreviewRgba &q = preview.pixels()[x+(y*preview.width())];
+ qpreview.setPixel( x, y, qRgba(q.r, q.g, q.b, q.a) );
+ }
+ }
+ img = qpreview;
+ return true;
+ } else {
+ // do it the hard way
+ // We ignore maximum size when just extracting the thumnail
+ // from the header, but it is very expensive to render large
+ // EXR images just to turn it into an icon, so we go back
+ // to honouring it in here.
+ kdDebug() << "EXRcreator - using original image" << endl;
+ KConfig * config = KGlobal::config();
+ KConfigGroupSaver cgs( config, "PreviewSettings" );
+ unsigned long long maxSize = config->readNumEntry( "MaximumSize", 1024*1024 /* 1MB */ );
+ unsigned long long fileSize = QFile( path ).size();
+ if ( (fileSize > 0) && (fileSize < maxSize) ) {
+ if (!img.load( path )) {
+ return false;
+ }
+ if (img.depth() != 32)
+ img = img.convertDepth( 32 );
+ return true;
+ } else {
+ return false;
+ }
+ }
+}
+
+ThumbCreator::Flags EXRCreator::flags() const
+{
+ return None;
+}