1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20 #include "JpegReader.hxx"
21 #include "JpegWriter.hxx"
22 #include "jpeg.hxx"
23
24 #include <vcl/graphicfilter.hxx>
25
ImportJPEG(SvStream & rInputStream,Graphic & rGraphic,GraphicFilterImportFlags nImportFlags,BitmapScopedWriteAccess * ppAccess)26 VCL_DLLPUBLIC bool ImportJPEG( SvStream& rInputStream, Graphic& rGraphic, GraphicFilterImportFlags nImportFlags, BitmapScopedWriteAccess* ppAccess )
27 {
28 bool bReturn = true;
29
30 std::shared_ptr<GraphicReader> pContext = rGraphic.GetContext();
31 rGraphic.SetContext(nullptr);
32 JPEGReader* pJPEGReader = dynamic_cast<JPEGReader*>( pContext.get() );
33 if (!pJPEGReader)
34 {
35 pContext = std::make_shared<JPEGReader>( rInputStream, nImportFlags );
36 pJPEGReader = static_cast<JPEGReader*>( pContext.get() );
37 }
38
39 if( nImportFlags & GraphicFilterImportFlags::ForPreview )
40 {
41 pJPEGReader->SetPreviewSize( Size(128,128) );
42 }
43 else
44 {
45 pJPEGReader->DisablePreviewMode();
46 }
47
48 ReadState eReadState = pJPEGReader->Read( rGraphic, nImportFlags, ppAccess );
49
50 if( eReadState == JPEGREAD_ERROR )
51 {
52 bReturn = false;
53 }
54 else if( eReadState == JPEGREAD_NEED_MORE )
55 {
56 rGraphic.SetContext( pContext );
57 }
58
59 return bReturn;
60 }
61
ExportJPEG(SvStream & rOutputStream,const Graphic & rGraphic,const css::uno::Sequence<css::beans::PropertyValue> * pFilterData,bool * pExportWasGrey)62 bool ExportJPEG(SvStream& rOutputStream, const Graphic& rGraphic,
63 const css::uno::Sequence<css::beans::PropertyValue>* pFilterData,
64 bool* pExportWasGrey)
65 {
66 JPEGWriter aJPEGWriter( rOutputStream, pFilterData, pExportWasGrey );
67 bool bReturn = aJPEGWriter.Write( rGraphic );
68 return bReturn;
69 }
70
71 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
72