d4708
/
source-engine
mirror of https://github.com/nillerusr/source-engine.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
168 Commits
25 Branches
6 Tags
221 MiB
 
 
 
 
 
 
Tree: fe2d89addb
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'fe2d89addb'
${ noResults }
source-engine/public/mathlib/vector4d.h

690 lines
17 KiB
Raw Blame History

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//=============================================================================//
#ifndef VECTOR4D_H
#define VECTOR4D_H
#ifdef _WIN32
#pragma once
#endif
#include <math.h>
#include <stdlib.h> // For rand(). We really need a library!
#include <float.h>
#if defined(__SSE__) || defined(_M_IX86_FP)
#include <xmmintrin.h> // For SSE
#endif
#include "basetypes.h" // For vec_t, put this somewhere else?
#include "tier0/dbg.h"
#include "mathlib/math_pfns.h"
#ifdef __arm__
#include "sse2neon.h"
#endif
// forward declarations
class Vector;
class Vector2D;
//=========================================================
// 4D Vector4D
//=========================================================
class Vector4D
{
public:
// Members
vec_t x, y, z, w;
// Construction/destruction
Vector4D(void);
Vector4D(vec_t X, vec_t Y, vec_t Z, vec_t W);
Vector4D(const float *pFloat);
// Initialization
void Init(vec_t ix=0.0f, vec_t iy=0.0f, vec_t iz=0.0f, vec_t iw=0.0f);
// Got any nasty NAN's?
bool IsValid() const;
// array access...
vec_t operator[](int i) const;
vec_t& operator[](int i);
// Base address...
inline vec_t* Base();
inline vec_t const* Base() const;
// Cast to Vector and Vector2D...
Vector& AsVector3D();
Vector const& AsVector3D() const;
Vector2D& AsVector2D();
Vector2D const& AsVector2D() const;
// Initialization methods
void Random( vec_t minVal, vec_t maxVal );
// equality
bool operator==(const Vector4D& v) const;
bool operator!=(const Vector4D& v) const;
// arithmetic operations
Vector4D& operator+=(const Vector4D &v);
Vector4D& operator-=(const Vector4D &v);
Vector4D& operator*=(const Vector4D &v);
Vector4D& operator*=(float s);
Vector4D& operator/=(const Vector4D &v);
Vector4D& operator/=(float s);
// negate the Vector4D components
void Negate();
// Get the Vector4D's magnitude.
vec_t Length() const;
// Get the Vector4D's magnitude squared.
vec_t LengthSqr(void) const;
// return true if this vector is (0,0,0,0) within tolerance
bool IsZero( float tolerance = 0.01f ) const
{
return (x > -tolerance && x < tolerance &&
y > -tolerance && y < tolerance &&
z > -tolerance && z < tolerance &&
w > -tolerance && w < tolerance);
}
// Get the distance from this Vector4D to the other one.
vec_t DistTo(const Vector4D &vOther) const;
// Get the distance from this Vector4D to the other one squared.
vec_t DistToSqr(const Vector4D &vOther) const;
// Copy
void CopyToArray(float* rgfl) const;
// Multiply, add, and assign to this (ie: *this = a + b * scalar). This
// is about 12% faster than the actual Vector4D equation (because it's done per-component
// rather than per-Vector4D).
void MulAdd(Vector4D const& a, Vector4D const& b, float scalar);
// Dot product.
vec_t Dot(Vector4D const& vOther) const;
// No copy constructors allowed if we're in optimal mode
#ifdef VECTOR_NO_SLOW_OPERATIONS
private:
#else
public:
#endif
Vector4D(Vector4D const& vOther);
// No assignment operators either...
Vector4D& operator=( Vector4D const& src );
};
const Vector4D vec4_origin( 0.0f, 0.0f, 0.0f, 0.0f );
const Vector4D vec4_invalid( FLT_MAX, FLT_MAX, FLT_MAX, FLT_MAX );
//-----------------------------------------------------------------------------
// SSE optimized routines
//-----------------------------------------------------------------------------
class ALIGN16 Vector4DAligned : public Vector4D
{
public:
Vector4DAligned(void) {}
Vector4DAligned( vec_t X, vec_t Y, vec_t Z, vec_t W );
inline void Set( vec_t X, vec_t Y, vec_t Z, vec_t W );
inline void InitZero( void );
inline __m128 &AsM128() { return *(__m128*)&x; }
inline const __m128 &AsM128() const { return *(const __m128*)&x; }
private:
// No copy constructors allowed if we're in optimal mode
Vector4DAligned( Vector4DAligned const& vOther );
// No assignment operators either...
Vector4DAligned& operator=( Vector4DAligned const& src );
} ALIGN16_POST;
//-----------------------------------------------------------------------------
// Vector4D related operations
//-----------------------------------------------------------------------------
// Vector4D clear
void Vector4DClear( Vector4D& a );
// Copy
void Vector4DCopy( Vector4D const& src, Vector4D& dst );
// Vector4D arithmetic
void Vector4DAdd( Vector4D const& a, Vector4D const& b, Vector4D& result );
void Vector4DSubtract( Vector4D const& a, Vector4D const& b, Vector4D& result );
void Vector4DMultiply( Vector4D const& a, vec_t b, Vector4D& result );
void Vector4DMultiply( Vector4D const& a, Vector4D const& b, Vector4D& result );
void Vector4DDivide( Vector4D const& a, vec_t b, Vector4D& result );
void Vector4DDivide( Vector4D const& a, Vector4D const& b, Vector4D& result );
void Vector4DMA( Vector4D const& start, float s, Vector4D const& dir, Vector4D& result );
// Vector4DAligned arithmetic
void Vector4DMultiplyAligned( Vector4DAligned const& a, vec_t b, Vector4DAligned& result );
#define Vector4DExpand( v ) (v).x, (v).y, (v).z, (v).w
// Normalization
vec_t Vector4DNormalize( Vector4D& v );
// Length
vec_t Vector4DLength( Vector4D const& v );
// Dot Product
vec_t DotProduct4D(Vector4D const& a, Vector4D const& b);
// Linearly interpolate between two vectors
void Vector4DLerp(Vector4D const& src1, Vector4D const& src2, vec_t t, Vector4D& dest );
//-----------------------------------------------------------------------------
//
// Inlined Vector4D methods
//
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// constructors
//-----------------------------------------------------------------------------
inline Vector4D::Vector4D(void)
{
#ifdef _DEBUG
// Initialize to NAN to catch errors
x = y = z = w = VEC_T_NAN;
#endif
}
inline Vector4D::Vector4D(vec_t X, vec_t Y, vec_t Z, vec_t W )
{
x = X; y = Y; z = Z; w = W;
Assert( IsValid() );
}
inline Vector4D::Vector4D(const float *pFloat)
{
Assert( pFloat );
x = pFloat[0]; y = pFloat[1]; z = pFloat[2]; w = pFloat[3];
Assert( IsValid() );
}
//-----------------------------------------------------------------------------
// copy constructor
//-----------------------------------------------------------------------------
inline Vector4D::Vector4D(const Vector4D &vOther)
{
Assert( vOther.IsValid() );
x = vOther.x; y = vOther.y; z = vOther.z; w = vOther.w;
}
//-----------------------------------------------------------------------------
// initialization
//-----------------------------------------------------------------------------
inline void Vector4D::Init( vec_t ix, vec_t iy, vec_t iz, vec_t iw )
{
x = ix; y = iy; z = iz; w = iw;
Assert( IsValid() );
}
inline void Vector4D::Random( vec_t minVal, vec_t maxVal )
{
x = minVal + ((vec_t)rand() / VALVE_RAND_MAX) * (maxVal - minVal);
y = minVal + ((vec_t)rand() / VALVE_RAND_MAX) * (maxVal - minVal);
z = minVal + ((vec_t)rand() / VALVE_RAND_MAX) * (maxVal - minVal);
w = minVal + ((vec_t)rand() / VALVE_RAND_MAX) * (maxVal - minVal);
}
inline void Vector4DClear( Vector4D& a )
{
a.x = a.y = a.z = a.w = 0.0f;
}
//-----------------------------------------------------------------------------
// assignment
//-----------------------------------------------------------------------------
inline Vector4D& Vector4D::operator=(const Vector4D &vOther)
{
Assert( vOther.IsValid() );
x=vOther.x; y=vOther.y; z=vOther.z; w=vOther.w;
return *this;
}
//-----------------------------------------------------------------------------
// Array access
//-----------------------------------------------------------------------------
inline vec_t& Vector4D::operator[](int i)
{
Assert( (i >= 0) && (i < 4) );
return ((vec_t*)this)[i];
}
inline vec_t Vector4D::operator[](int i) const
{
Assert( (i >= 0) && (i < 4) );
return ((vec_t*)this)[i];
}
//-----------------------------------------------------------------------------
// Cast to Vector and Vector2D...
//-----------------------------------------------------------------------------
inline Vector& Vector4D::AsVector3D()
{
return *(Vector*)this;
}
inline Vector const& Vector4D::AsVector3D() const
{
return *(Vector const*)this;
}
inline Vector2D& Vector4D::AsVector2D()
{
return *(Vector2D*)this;
}
inline Vector2D const& Vector4D::AsVector2D() const
{
return *(Vector2D const*)this;
}
//-----------------------------------------------------------------------------
// Base address...
//-----------------------------------------------------------------------------
inline vec_t* Vector4D::Base()
{
return (vec_t*)this;
}
inline vec_t const* Vector4D::Base() const
{
return (vec_t const*)this;
}
//-----------------------------------------------------------------------------
// IsValid?
//-----------------------------------------------------------------------------
inline bool Vector4D::IsValid() const
{
return IsFinite(x) && IsFinite(y) && IsFinite(z) && IsFinite(w);
}
//-----------------------------------------------------------------------------
// comparison
//-----------------------------------------------------------------------------
inline bool Vector4D::operator==( Vector4D const& src ) const
{
Assert( src.IsValid() && IsValid() );
return (src.x == x) && (src.y == y) && (src.z == z) && (src.w == w);
}
inline bool Vector4D::operator!=( Vector4D const& src ) const
{
Assert( src.IsValid() && IsValid() );
return (src.x != x) || (src.y != y) || (src.z != z) || (src.w != w);
}
//-----------------------------------------------------------------------------
// Copy
//-----------------------------------------------------------------------------
inline void Vector4DCopy( Vector4D const& src, Vector4D& dst )
{
Assert( src.IsValid() );
dst.x = src.x;
dst.y = src.y;
dst.z = src.z;
dst.w = src.w;
}
inline void Vector4D::CopyToArray(float* rgfl) const
{
Assert( IsValid() );
Assert( rgfl );
rgfl[0] = x; rgfl[1] = y; rgfl[2] = z; rgfl[3] = w;
}
//-----------------------------------------------------------------------------
// standard math operations
//-----------------------------------------------------------------------------
inline void Vector4D::Negate()
{
Assert( IsValid() );
x = -x; y = -y; z = -z; w = -w;
}
inline Vector4D& Vector4D::operator+=(const Vector4D& v)
{
Assert( IsValid() && v.IsValid() );
x+=v.x; y+=v.y; z += v.z; w += v.w;
return *this;
}
inline Vector4D& Vector4D::operator-=(const Vector4D& v)
{
Assert( IsValid() && v.IsValid() );
x-=v.x; y-=v.y; z -= v.z; w -= v.w;
return *this;
}
inline Vector4D& Vector4D::operator*=(float fl)
{
x *= fl;
y *= fl;
z *= fl;
w *= fl;
Assert( IsValid() );
return *this;
}
inline Vector4D& Vector4D::operator*=(Vector4D const& v)
{
x *= v.x;
y *= v.y;
z *= v.z;
w *= v.w;
Assert( IsValid() );
return *this;
}
inline Vector4D& Vector4D::operator/=(float fl)
{
Assert( fl != 0.0f );
float oofl = 1.0f / fl;
x *= oofl;
y *= oofl;
z *= oofl;
w *= oofl;
Assert( IsValid() );
return *this;
}
inline Vector4D& Vector4D::operator/=(Vector4D const& v)
{
Assert( v.x != 0.0f && v.y != 0.0f && v.z != 0.0f && v.w != 0.0f );
x /= v.x;
y /= v.y;
z /= v.z;
w /= v.w;
Assert( IsValid() );
return *this;
}
inline void Vector4DAdd( Vector4D const& a, Vector4D const& b, Vector4D& c )
{
Assert( a.IsValid() && b.IsValid() );
c.x = a.x + b.x;
c.y = a.y + b.y;
c.z = a.z + b.z;
c.w = a.w + b.w;
}
inline void Vector4DSubtract( Vector4D const& a, Vector4D const& b, Vector4D& c )
{
Assert( a.IsValid() && b.IsValid() );
c.x = a.x - b.x;
c.y = a.y - b.y;
c.z = a.z - b.z;
c.w = a.w - b.w;
}
inline void Vector4DMultiply( Vector4D const& a, vec_t b, Vector4D& c )
{
Assert( a.IsValid() && IsFinite(b) );
c.x = a.x * b;
c.y = a.y * b;
c.z = a.z * b;
c.w = a.w * b;
}
inline void Vector4DMultiply( Vector4D const& a, Vector4D const& b, Vector4D& c )
{
Assert( a.IsValid() && b.IsValid() );
c.x = a.x * b.x;
c.y = a.y * b.y;
c.z = a.z * b.z;
c.w = a.w * b.w;
}
inline void Vector4DDivide( Vector4D const& a, vec_t b, Vector4D& c )
{
Assert( a.IsValid() );
Assert( b != 0.0f );
vec_t oob = 1.0f / b;
c.x = a.x * oob;
c.y = a.y * oob;
c.z = a.z * oob;
c.w = a.w * oob;
}
inline void Vector4DDivide( Vector4D const& a, Vector4D const& b, Vector4D& c )
{
Assert( a.IsValid() );
Assert( (b.x != 0.0f) && (b.y != 0.0f) && (b.z != 0.0f) && (b.w != 0.0f) );
c.x = a.x / b.x;
c.y = a.y / b.y;
c.z = a.z / b.z;
c.w = a.w / b.w;
}
inline void Vector4DMA( Vector4D const& start, float s, Vector4D const& dir, Vector4D& result )
{
Assert( start.IsValid() && IsFinite(s) && dir.IsValid() );
result.x = start.x + s*dir.x;
result.y = start.y + s*dir.y;
result.z = start.z + s*dir.z;
result.w = start.w + s*dir.w;
}
// FIXME: Remove
// For backwards compatability
inline void Vector4D::MulAdd(Vector4D const& a, Vector4D const& b, float scalar)
{
x = a.x + b.x * scalar;
y = a.y + b.y * scalar;
z = a.z + b.z * scalar;
w = a.w + b.w * scalar;
}
inline void Vector4DLerp(const Vector4D& src1, const Vector4D& src2, vec_t t, Vector4D& dest )
{
dest[0] = src1[0] + (src2[0] - src1[0]) * t;
dest[1] = src1[1] + (src2[1] - src1[1]) * t;
dest[2] = src1[2] + (src2[2] - src1[2]) * t;
dest[3] = src1[3] + (src2[3] - src1[3]) * t;
}
//-----------------------------------------------------------------------------
// dot, cross
//-----------------------------------------------------------------------------
inline vec_t DotProduct4D(const Vector4D& a, const Vector4D& b)
{
Assert( a.IsValid() && b.IsValid() );
return( a.x*b.x + a.y*b.y + a.z*b.z + a.w*b.w );
}
// for backwards compatability
inline vec_t Vector4D::Dot( Vector4D const& vOther ) const
{
return DotProduct4D( *this, vOther );
}
//-----------------------------------------------------------------------------
// length
//-----------------------------------------------------------------------------
inline vec_t Vector4DLength( Vector4D const& v )
{
Assert( v.IsValid() );
return (vec_t)FastSqrt(v.x*v.x + v.y*v.y + v.z*v.z + v.w*v.w);
}
inline vec_t Vector4D::LengthSqr(void) const
{
Assert( IsValid() );
return (x*x + y*y + z*z + w*w);
}
inline vec_t Vector4D::Length(void) const
{
return Vector4DLength( *this );
}
//-----------------------------------------------------------------------------
// Normalization
//-----------------------------------------------------------------------------
// FIXME: Can't use until we're un-macroed in mathlib.h
inline vec_t Vector4DNormalize( Vector4D& v )
{
Assert( v.IsValid() );
vec_t l = v.Length();
if (l != 0.0f)
{
v /= l;
}
else
{
v.x = v.y = v.z = v.w = 0.0f;
}
return l;
}
//-----------------------------------------------------------------------------
// Get the distance from this Vector4D to the other one
//-----------------------------------------------------------------------------
inline vec_t Vector4D::DistTo(const Vector4D &vOther) const
{
Vector4D delta;
Vector4DSubtract( *this, vOther, delta );
return delta.Length();
}
inline vec_t Vector4D::DistToSqr(const Vector4D &vOther) const
{
Vector4D delta;
Vector4DSubtract( *this, vOther, delta );
return delta.LengthSqr();
}
//-----------------------------------------------------------------------------
// Vector4DAligned routines
//-----------------------------------------------------------------------------
inline Vector4DAligned::Vector4DAligned( vec_t X, vec_t Y, vec_t Z, vec_t W )
{
x = X; y = Y; z = Z; w = W;
Assert( IsValid() );
}
inline void Vector4DAligned::Set( vec_t X, vec_t Y, vec_t Z, vec_t W )
{
x = X; y = Y; z = Z; w = W;
Assert( IsValid() );
}
inline void Vector4DAligned::InitZero( void )
{
#if !defined( _X360 )
this->AsM128() = _mm_set1_ps( 0.0f );
#else
this->AsM128() = __vspltisw( 0 );
#endif
Assert( IsValid() );
}
inline void Vector4DMultiplyAligned( Vector4DAligned const& a, Vector4DAligned const& b, Vector4DAligned& c )
{
Assert( a.IsValid() && b.IsValid() );
#if !defined( _X360 )
c.x = a.x * b.x;
c.y = a.y * b.y;
c.z = a.z * b.z;
c.w = a.w * b.w;
#else
c.AsM128() = __vmulfp( a.AsM128(), b.AsM128() );
#endif
}
inline void Vector4DWeightMAD( vec_t w, Vector4DAligned const& vInA, Vector4DAligned& vOutA, Vector4DAligned const& vInB, Vector4DAligned& vOutB )
{
Assert( vInA.IsValid() && vInB.IsValid() && IsFinite(w) );
#if !defined( _X360 )
vOutA.x += vInA.x * w;
vOutA.y += vInA.y * w;
vOutA.z += vInA.z * w;
vOutA.w += vInA.w * w;
vOutB.x += vInB.x * w;
vOutB.y += vInB.y * w;
vOutB.z += vInB.z * w;
vOutB.w += vInB.w * w;
#else
__vector4 temp;
temp = __lvlx( &w, 0 );
temp = __vspltw( temp, 0 );
vOutA.AsM128() = __vmaddfp( vInA.AsM128(), temp, vOutA.AsM128() );
vOutB.AsM128() = __vmaddfp( vInB.AsM128(), temp, vOutB.AsM128() );
#endif
}
inline void Vector4DWeightMADSSE( vec_t w, Vector4DAligned const& vInA, Vector4DAligned& vOutA, Vector4DAligned const& vInB, Vector4DAligned& vOutB )
{
Assert( vInA.IsValid() && vInB.IsValid() && IsFinite(w) );
#if !defined( _X360 )
// Replicate scalar float out to 4 components
__m128 packed = _mm_set1_ps( w );
// 4D SSE Vector MAD
vOutA.AsM128() = _mm_add_ps( vOutA.AsM128(), _mm_mul_ps( vInA.AsM128(), packed ) );
vOutB.AsM128() = _mm_add_ps( vOutB.AsM128(), _mm_mul_ps( vInB.AsM128(), packed ) );
#else
__vector4 temp;
temp = __lvlx( &w, 0 );
temp = __vspltw( temp, 0 );
vOutA.AsM128() = __vmaddfp( vInA.AsM128(), temp, vOutA.AsM128() );
vOutB.AsM128() = __vmaddfp( vInB.AsM128(), temp, vOutB.AsM128() );
#endif
}
#endif // VECTOR4D_H