Attempt Shading + Bezier Bounds (hopefully) correct

[ipdf/code.git] / src / real.h

diff --git a/src/real.h b/src/real.h
index 73aca6d..406cb8e 100644 (file)
--- a/src/real.h
+++ b/src/real.h
@@ -2,21 +2,88 @@
 #define _REAL_H
 
 #include "common.h"
+#include <cmath>
 
-namespace IPDF
-{
 
-#define REAL_SINGLE
-//#define REAL_DOUBLE
-//#define REAL_HALF
+#define REAL_SINGLE 0
+#define REAL_DOUBLE 1
+#define REAL_LONG_DOUBLE 2
+#define REAL_VFPU 3
+#define REAL_RATIONAL 4
+#define REAL_RATIONAL_ARBINT 5
+
+#ifndef REAL
+       #error "REAL was not defined!"
+#endif
+
+#if REAL == REAL_VFPU
+       #include "vfpu.h"
+#endif
+
+#if REAL == REAL_RATIONAL
+       #include "rational.h"
+#endif //REAL
+
+#if REAL == REAL_RATIONAL_ARBINT
+       #include "rational.h"
+       #include "arbint.h"
+       #include "gmpint.h"
+#endif //REAL
 
-#ifdef REAL_SINGLE
+namespace IPDF
+{      
+       extern const char * g_real_name[];
+
+#if REAL == REAL_SINGLE
        typedef float Real;
-       inline float Float(Real r) {return r;}
-#elif defined REAL_DOUBLE
+#elif REAL == REAL_DOUBLE
        typedef double Real;
-       inline double Float(Real r) {return r;}
-#endif
+#elif REAL == REAL_LONG_DOUBLE
+       typedef long double Real;
+#elif REAL == REAL_VFPU
+       typedef VFPU::VFloat Real;
+       inline float Float(const Real & r) {return r.m_value;}
+       inline double Double(const Real & r) {return r.m_value;}
+#elif REAL == REAL_RATIONAL
+       typedef Rational<int64_t> Real;
+       inline float Float(const Real & r) {return (float)r.ToDouble();}
+       inline double Double(const Real & r) {return r.ToDouble();}
+#elif REAL == REAL_RATIONAL_ARBINT
+       #define ARBINT Gmpint // Set to Gmpint or Arbint here
+       
+       typedef Rational<ARBINT> Real;
+       inline float Float(const Real & r) {return (float)r.ToDouble();}
+       inline double Double(const Real & r) {return r.ToDouble();}
+
+#else
+       #error "Type of Real unspecified."
+#endif //REAL
+
+       // Allow us to call Float on the primative types
+       // Useful so I can template some things that could be either (a more complicated) Real or a primitive type
+       // Mostly in the testers.
+       inline float Float(float f) {return (float)f;}
+       inline float Float(double f) {return (float)f;}
+       inline float Float(long double f) {return (float)(f);}
+       inline double Double(float f) {return (double)f;}
+       inline double Double(double f) {return (double)f;}
+       inline double Double(long double f) {return (double)(f);}
+       inline double Sqrt(double f) {return sqrt(f);}
+       
+       inline Real Power(const Real & a, int n)
+       {
+               if (n < 0)
+               {
+                       return Power(Real(1)/a, -n);
+               }
+               Real r(1);
+               for (int i = 0; i < n; ++i)
+                       r *= a;
+               return r;
+       }
+       
+       
+
 }
 
 #endif //_REAL_H