vcl/source/filter/jpeg/jpeg.h

   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 #ifndef _JPEG_H
  21 #define _JPEG_H
  22
  23 #if defined( ICC )
  24 #include <stdio.h>
  25 #endif
  26
  27 #if defined (UNX) || defined(__MINGW32__)
  28 #include <sys/types.h>
  29 #endif
  30
  31 struct JPEGCreateBitmapParam
  32 {
  33     unsigned long nWidth;
  34     unsigned long nHeight;
  35     unsigned long density_unit;
  36     unsigned long X_density;
  37     unsigned long Y_density;
  38     long     bGray;
  39
  40     long     nAlignedWidth;  // these members will be filled by the
  41     long     bTopDown;      // CreateBitmap method in svtools
  42 };
  43
  44 typedef struct ErrorManagerStruct* ErrorManagerPointer;
  45 typedef unsigned char* HPBYTE;
  46
  47 void*   JPEGMalloc( size_t size );
  48 void    JPEGFree( void *ptr );
  49 long    JPEGCallback( void* pCallbackData, long nPercent );
  50
  51 long    WriteJPEG( void* pJPEGWriter, void* pOutputStream, long nWidth, long nHeight, long bGreyScale,
  52                    long nQualityPercent, long aChromaSubsampling, void* pCallbackData );
  53 void*   GetScanline( void* pJPEGWriter, long nY );
  54
  55 void    ReadJPEG( void* pJPEGReader, void* pInputStream, long* pLines );
  56 void*   CreateBitmapFromJPEGReader( void* pJPEGReader, void* pJPEGCreateBitmapParam );
  57
  58 /* TODO: when incompatible changes are possible again
  59    the preview size hint should be redone */
  60 void    SetJpegPreviewSizeHint( int nWidth, int nHeight );
  61
  62 long    Transform( void* pInputStream, void* pOutputStream, long nAngle );
  63
  64 #endif
  65
  66 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */