增加iFloat64::from_raw函数接口

source/core/include/math/dvc_fix_point.h

@@ -62,6 +62,11 @@ public:
 		return static_cast<int32_t>(s1516 >> kShift);
 	}
 
+	static ifloat32 from_raw(int32_t raw) {
+		ifloat32 ret;
+		ret.s1516 = raw;
+		return ret;
+	}
 public:
 	inline ifloat32& operator = (const ifloat32& other) {
 		s1516 = other.s1516;
@@ -99,56 +104,34 @@ public:
 	//Adds the two FP numbers together.
 	inline friend ifloat32 operator + (const ifloat32& l, const ifloat32& r) {
 		int64_t t = static_cast<int64_t>(l.s1516) + static_cast<int64_t>(r.s1516);
-
-		ifloat32 ret;
-		ret.s1516 = static_cast<int32_t>(t);
-		return ret;
+		return from_raw(t);
 	}
 
 	//Subtracts the two FP numbers from each other.
 	inline friend ifloat32 operator - (const ifloat32& l, const ifloat32& r) {
 		int64_t t = static_cast<int64_t>(l.s1516) - static_cast<int64_t>(r.s1516);
-
-		ifloat32 ret;
-		ret.s1516 = t;
-		return ret;
+		return from_raw(t);
 	}
 
 	inline friend ifloat32 operator * (const ifloat32& a, const float32_t& b) {
 		int64_t t = static_cast<int64_t>(a.s1516) * static_cast<int64_t>(b * kFloatScale);
-
-		t = t >> kShift;
-
-		ifloat32 ret;
-		ret.s1516 = t;
-		return ret;
+		return from_raw(t >> kShift);
 	}
 
 	inline friend ifloat32 operator * (const ifloat32& a, const int32_t& b) {
-		ifloat32 ret;
-		ret.s1516 = a.s1516 * b;
-		return ret;
+		return from_raw(a.s1516 * b);
 	}
 
 	//Multiplies two FP values together.
 	inline friend ifloat32 operator * (const ifloat32& a, const ifloat32& b) {
 		int64_t t = static_cast<int64_t>(a.s1516) * static_cast<int64_t>(b.s1516);
-
-		t = t >> kShift;
-
-		ifloat32 ret;
-		ret.s1516 = static_cast<int32_t>(t);
-		return ret;
+		return from_raw(static_cast<int32_t>(t >> kShift));
 	}
 
 	inline friend ifloat32 operator / (const ifloat32& a, const ifloat32& b) {
 		// pre-multiply by the base
 		int64_t t = static_cast<int64_t>(a.s1516) << kShift;
-		t /= b.s1516;
-
-		ifloat32 ret;
-		ret.s1516 = static_cast<int32_t>(t);
-		return ret;
+		return from_raw(static_cast<int32_t>(t/ b.s1516));
 	}
 
 public:
@@ -440,6 +423,12 @@ struct iFloat3
 		z = z * multiplier;
 	}
 
+	inline void mul(const int32_t& multiplier) {
+		x = x * multiplier;
+		y = y * multiplier;
+		z = z * multiplier;
+	}
+
 	inline iFloat operator [] (const size_t i) const {
 		return *(&x + i);
 	}