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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_VCL_SOURCE_FILTER_JPEG_JPEGREADER_HXX
#define INCLUDED_VCL_SOURCE_FILTER_JPEG_JPEGREADER_HXX
#include <vcl/graph.hxx>
#include <vcl/bitmap.hxx>
#include <bitmapwriteaccess.hxx>
#include <graphic/GraphicReader.hxx>
enum class GraphicFilterImportFlags;
enum ReadState
{
JPEGREAD_OK,
JPEGREAD_ERROR,
JPEGREAD_NEED_MORE
};
struct JPEGCreateBitmapParam
{
unsigned long nWidth;
unsigned long nHeight;
unsigned long density_unit;
unsigned long X_density;
unsigned long Y_density;
bool bGray;
};
class JPEGReader : public GraphicReader
{
SvStream& mrStream;
std::unique_ptr<Bitmap> mpBitmap;
std::unique_ptr<Bitmap> mpIncompleteAlpha;
tools::Long mnLastPos;
tools::Long mnLastLines;
bool mbSetLogSize;
Graphic CreateIntermediateGraphic(tools::Long nLines);
public:
JPEGReader( SvStream& rStream, GraphicFilterImportFlags nImportFlags );
virtual ~JPEGReader() override;
ReadState Read(Graphic& rGraphic, GraphicFilterImportFlags nImportFlags, BitmapScopedWriteAccess* ppAccess);
bool CreateBitmap(JPEGCreateBitmapParam const & param);
Bitmap& GetBitmap() { return *mpBitmap; }
};
#endif // INCLUDED_VCL_SOURCE_FILTER_JPEG_JPEGREADER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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