zone: Add Z_ counterparts for Realloc and strdup

[xonotic/darkplaces.git] / mathlib.c

diff --git a/mathlib.c b/mathlib.c
index 69203a333f75282cc2ca1c68635e5feed3c5cf42..4c19dfe1d38e558af013e23da358031a563bf443 100644 (file)
--- a/mathlib.c
+++ b/mathlib.c
@@ -145,7 +145,7 @@ void ByteToNormal(unsigned char num, vec3_t n)
 // assumes "src" is normalized
 void PerpendicularVector( vec3_t dst, const vec3_t src )
 {
-       // LordHavoc: optimized to death and beyond
+       // LadyHavoc: optimized to death and beyond
        int pos;
        float minelem;
 
@@ -195,7 +195,7 @@ void PerpendicularVector( vec3_t dst, const vec3_t src )
 #endif
 
 
-// LordHavoc: like AngleVectors, but taking a forward vector instead of angles, useful!
+// LadyHavoc: like AngleVectors, but taking a forward vector instead of angles, useful!
 void VectorVectors(const vec3_t forward, vec3_t right, vec3_t up)
 {
        // NOTE: this is consistent to AngleVectors applied to AnglesFromVectors
@@ -646,8 +646,8 @@ void AngleVectorsDuke3DFLU (const vec3_t angles, vec3_t forward, vec3_t left, ve
        }
 }
 
-// LordHavoc: calculates pitch/yaw/roll angles from forward and up vectors
-void AnglesFromVectors (vec3_t angles, const vec3_t forward, const vec3_t up, qboolean flippitch)
+// LadyHavoc: calculates pitch/yaw/roll angles from forward and up vectors
+void AnglesFromVectors (vec3_t angles, const vec3_t forward, const vec3_t up, qbool flippitch)
 {
        if (forward[0] == 0 && forward[1] == 0)
        {
@@ -759,24 +759,17 @@ void AngleMatrix (const vec3_t angles, const vec3_t translate, vec_t matrix[][4]
 #endif
 
 
-// LordHavoc: renamed this to Length, and made the normal one a #define
+// LadyHavoc: renamed this to Length, and made the normal one a #define
 float VectorNormalizeLength (vec3_t v)
 {
-       float length, ilength;
+       float length;
 
-       length = v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
-       length = sqrt (length);
+       length = sqrt(DotProduct(v,v));
 
        if (length)
-       {
-               ilength = 1/length;
-               v[0] *= ilength;
-               v[1] *= ilength;
-               v[2] *= ilength;
-       }
+               VectorScale(v, 1 / length, v);
 
        return length;
-
 }
 
 
@@ -841,7 +834,7 @@ void Mathlib_Init(void)
 {
        int a;
 
-       // LordHavoc: setup 1.0f / N table for quick recipricols of integers
+       // LadyHavoc: setup 1.0f / N table for quick recipricols of integers
        ixtable[0] = 0;
        for (a = 1;a < 4096;a++)
                ixtable[a] = 1.0f / a;
@@ -894,7 +887,7 @@ void BoxFromPoints(vec3_t mins, vec3_t maxs, int numpoints, vec_t *point3f)
        }
 }
 
-// LordHavoc: this has to be done right or you get severe precision breakdown
+// LadyHavoc: this has to be done right or you get severe precision breakdown
 int LoopingFrameNumberFromDouble(double t, int loopframes)
 {
        if (loopframes)
@@ -907,7 +900,7 @@ static unsigned int mul_Lecuyer[4] = { 0x12e15e35, 0xb500f16e, 0x2e714eb2, 0xb37
 
 static void mul128(const unsigned int a[], const unsigned int b[], unsigned int dest[4])
 {
-#if defined(__GNUC__) && defined(__x86_64__)
+#if 0 //defined(__GNUC__) && defined(__x86_64__)
        unsigned __int128 ia = ((__int128)a[0] << 96) | ((__int128)a[1] << 64) | ((__int128)a[2] << 32) | (a[3]);
        unsigned __int128 ib = ((__int128)b[0] << 96) | ((__int128)b[1] << 64) | ((__int128)b[2] << 32) | (b[3]);
        unsigned __int128 id = ia * ib;