svtools/source/filter.vcl/jpeg/jpeg.h

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  30
  31 #ifndef _JPEG_H
  32 #define _JPEG_H
  33
  34 #if defined( ICC )
  35 #include <stdio.h>
  36 #endif
  37
  38 #if defined (UNX) || defined(__MINGW32__)
  39 #include <sys/types.h>
  40 #endif
  41
  42 struct JPEGCreateBitmapParam
  43 {
  44     unsigned long nWidth;
  45     unsigned long nHeight;
  46     unsigned long density_unit;
  47     unsigned long X_density;
  48     unsigned long Y_density;
  49     long     bGray;
  50
  51     long     nAlignedWidth;  // these members will be filled by the
  52     long     bTopDown;      // CreateBitmap method in svtools
  53 };
  54
  55 typedef struct my_error_mgr*    my_error_ptr;
  56 typedef unsigned char                   BYTE;
  57 #ifdef WIN
  58 typedef unsigned char _huge*    HPBYTE;
  59 #else
  60 typedef unsigned char*                  HPBYTE;
  61 #endif
  62
  63 void*   JPEGMalloc( size_t size );
  64 void    JPEGFree( void *ptr );
  65 long    JPEGCallback( void* pCallbackData, long nPercent );
  66
  67 long    WriteJPEG( void* pJPEGWriter, void* pOStm, long nWidth, long nHeight,
  68                    long nQualityPercent, void* pCallbackData );
  69 void*   GetScanline( void* pJPEGWriter, long nY );
  70
  71 void    ReadJPEG( void* pJPEGReader, void* pIStm, long* pLines );
  72 void*   CreateBitmap( void* pJPEGReader, void* pJPEGCreateBitmapParam );
  73
  74 /* TODO: when incompatible changes are possible again
  75    the preview size hint should be redone */
  76 void    SetJpegPreviewSizeHint( int nWidth, int nHeight );
  77
  78 #endif