miscdefs.h

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/*
 * Miscellanous type definitions etc...
 *
 * $Date$
 * $Revision$
 *
 */

#ifndef MISCDEFS_H__
#define MISCDEFS_H__

#include <cfloat>
#include <stdexcept>
#include <string>
#ifndef _WIN32_WCE
#include <iostream>
#else
/* we disable this warning because there is a macro DELETE in the Windows
 * CE toolkit which we just overwrite */
#pragma warning (disable: 4005)
#endif

#ifndef NEW
#define NEW(a)       new a
#endif
#ifndef DELETE
#define DELETE(a)    delete (a), (a) = NULL
#endif
#ifndef DELETEAR
#define DELETEAR(a)  delete [] (a), (a) = NULL
#endif
#ifndef DELETENOTNULL
#define DELETENOTNULL(a) if (a) { DELETE (a); } else {}
#endif
#ifndef DELETENOTNULLAR
#define DELETENOTNULLAR(a) if (a) { DELETEAR (a); } else {}
#endif

typedef unsigned char pixel;
typedef double        coeff;

#define COEFF_EPSILON ((coeff)DBL_EPSILON)

#define COEFF_MAX ((coeff)DBL_MAX)

#define COEFF_MIN ((coeff)DBL_MIN)

#define MIN(x,y) ((x) < (y)? (x): (y))

#define MAX(x,y) ((x) > (y)? (x): (y))

#define DIV2(x) ((unsigned)(x)>>1u)

#define MUL2(x) ((unsigned)(x)<<1u)

#define TWOPOW(n) (1u<<(unsigned)(n))

#define SQUARE(n) ((n)*(n))

#if defined (__GNUG__) && __GNUG__ >= 3 || defined (__INTEL_COMPILER)
#define FMT0 std::ios_base::fmtflags(0)
#else
#define FMT0 0
#endif

typedef enum { LL = 0, HL, LH, HH, areaINVALID } area;

extern const area areas [areaINVALID]; /*= { LL, HL, LH, HH };*/

typedef enum { cm_rgb, cm_yuv, cm_grey, cm_unknown } clrmodel;

typedef enum { yuv_y = 0, yuv_u, yuv_v, yuv_unknown } yuv;

typedef enum { rgb_r = 0, rgb_g, rgb_b, rgb_unknown } rgb;

#if defined __WATCOMC__ || defined __GNUC__ && __GNUC__ < 3
#define HAS_NO_IOS_BASE
#endif

#ifdef HAS_NO_IOS_BASE
// Some wrapping for Watcom C++ (does not yet include a full STL)
namespace ios_base {
  class failure : public std::logic_error {
  public:
    failure (std::string const& what_arg)
      : logic_error( what_arg ) {
                    }
  };
  //#define ios_base::app ios::append

  enum open_mode {                  // How to open a stream
    in        = std::ios::in,            // - open for input
    out       = std::ios::out,           // - open for output
    nocreate  = std::ios::nocreate,      // - open only an existing file
    noreplace = std::ios::noreplace,     // - open only a new file
    binary    = std::ios::binary,        // - open as binary file

    app       = std::ios::app,           // Historical purposes
    ate       = std::ios::ate,
    trunc     = std::ios::trunc
  };
}
#endif

#endif /* MISCDEFS_H__ */

/* We put this outside the recursion stopper to allow overriding
 * defines set by some microsoft environments */
#if defined _MSC_VER || defined __WATCOMC__ || defined _WIN32_WCE

# define for if(0);else for
# ifdef DELETE
#  undef DELETE
# endif
# define DELETE(a)    delete (a), (a) = NULL
#endif