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Defines

GEO_FORCE_INLINE v128 Geo::Abs

...

public: v128 Abs
(
    v128Param a
)

...

Returns a vector with the Abs function applied to all 4 elements.

bool Geo::EqualWithinEpsilon

...

public: bool EqualWithinEpsilon
(
    v128Param a,
    v128Param b,
    v128Param epsilon
)

...

Returns true if all elements of a and b are within g_VecEpsilon of each other.

You may specify an epsilon vector that contains different epsilon values in each element if you wish.

Geo::v128 GEO_CALL Geo::GetV128FromString

...

public: Geo::v128GEO_CALL GetV128FromString
(
    const C * str
)

...

Parses a v128 from the given string.

Geo::v128 GEO_CALL Geo::GetV128FromStringXYZ

...

public: Geo::v128GEO_CALL GetV128FromStringXYZ
(
    const C * str,
    float w
)

...

Parses a v128 from the given string, ignoring the W-component and instead setting it to the given value.

bool Geo::IsFinite

...

public: bool IsFinite
(
    v128Param v
)

...

Returns true if all of the 4 elements of v are finite.

TODO - this function doesn't detect INFs yet!

bool Geo::IsNan

...

public: bool IsNan
(
    v128Param v
)

...

Returns true if any of the 4 elements of v are NANs.

v128 Geo::Lerp

...

public: v128 Lerp
(
    v128Param a,
    v128Param b,
    v128Param s
)

...

Linearly interpolated between the corresponding components of a and b.

s is the interpolation factor, typically having values between 0 -> 1.

GEO_FORCE_INLINE v128 Geo::Max

...

public: v128 Max
(
    const v128 & a,
    const v128 & b
)

...

Returns a vector where each element has the maximum value of the corresponding values in a and b NOTE - the Min3 template function will work with the v128 type as well.

GEO_FORCE_INLINE v128 Geo::Min

...

public: v128 Min
(
    const v128 & a,
    const v128 & b
)

...

Returns a vector where each element has the minimum value of the corresponding values in a and b NOTE - the Min3 template function will work with the v128 type as well.

GEO_FORCE_INLINE Geo::v128 Geo::operator-

...

public: Geo::v128 operator-
(
    Geo::v128Param lhs,
    Geo::v128Param rhs
)

...

Operator - (component-wise subtraction)

GEO_FORCE_INLINE Geo::v128 Geo::operator-

...

public: Geo::v128 operator-
(
    Geo::v128Param v
)

...

The unary - operator. Equivalent to (VZero() - v);.

GEO_FORCE_INLINE Geo::v128 Geo::operator*

...

public: Geo::v128 operator*
(
    Geo::v128Param lhs,
    Geo::v128Param rhs
)

...

Operator * (component-wise multiplication)

GEO_FORCE_INLINE Geo::v128 & Geo::operator*=

...

public: Geo::v128 & operator*=
(
    Geo::v128 & lhs,
    Geo::v128Param rhs
)

...

Inplace *.

GEO_FORCE_INLINE Geo::v128 Geo::operator/

...

public: Geo::v128 operator/
(
    Geo::v128Param lhs,
    Geo::v128Param rhs
)

...

Operator / (component-wise division)

GEO_FORCE_INLINE Geo::v128 & Geo::operator/=

...

public: Geo::v128 & operator/=
(
    Geo::v128 & lhs,
    Geo::v128Param rhs
)

...

Inplace /.

GEO_FORCE_INLINE Geo::v128 Geo::operator+

...

public: Geo::v128 operator+
(
    Geo::v128Param lhs,
    Geo::v128Param rhs
)

...

Operator + (component-wise addition)

GEO_FORCE_INLINE Geo::v128 Geo::operator+

...

public: Geo::v128 operator+
(
    Geo::v128Param v
)

...

The unary + operator (effectively a no-op)

GEO_FORCE_INLINE Geo::v128 & Geo::operator+=

...

public: Geo::v128 & operator+=
(
    Geo::v128 & lhs,
    Geo::v128Param rhs
)

...

Inplace +.

GEO_FORCE_INLINE Geo::v128 & Geo::operator-=

...

public: Geo::v128 & operator-=
(
    Geo::v128 & lhs,
    Geo::v128Param rhs
)

...

Inplace -.

Geo::GeoString<char> GEO_CALL Geo::V128ToUtf8String

...

public: Geo::GeoString< char > GEO_CALL V128ToUtf8String
(
    const Geo::v128 & v
)

...

Creates a GeoString representation of the vector (space-separated).

The ..XYZ versions return a string containing only the X, Y and Z components of the vector, the others include W.

Geo::GeoString<char> GEO_CALL Geo::V128ToUtf8StringXYZ

...

public: Geo::GeoString< char > GEO_CALL V128ToUtf8StringXYZ
(
    const Geo::v128 & v
)

...

Creates a GeoString representation of the vector (space-separated).

The ..XYZ versions return a string containing only the X, Y and Z components of the vector, the others include W.

GEO_FORCE_INLINE v128 Geo::VBroadcast

...

public: v128 VBroadcast
(
    float x
)

...

Construct a v128 by broadcasting a float into all elements.

This is particularly handy when you want to use the vpu to do regular fpu operations.

GEO_FORCE_INLINE v128 Geo::VBroadcastInt

...

public: v128 VBroadcastInt
(
    s32 x
)

...

Construct a v128 by converting an integer to a float and broadcasting it into all elements.

GEO_FORCE_INLINE v128 Geo::VCeil

...

public: v128 VCeil
(
    v128Param v
)

...

Return ceil(v).

v128 Geo::VCompareEquals

...

public: v128 VCompareEquals
(
    v128Param a,
    v128Param b
)

...

Compares all corresponding elements to see if a == b (exact equals).

Returns a mask with the result of all comparisons as true/false mask values.

v128 Geo::VCompareGE

...

public: v128 VCompareGE
(
    v128Param a,
    v128Param b
)

...

Compares all corresponding elements to see if a >= b.

Returns a mask with the result of all comparisons as true/false mask values.

v128 Geo::VCompareGT

...

public: v128 VCompareGT
(
    v128Param a,
    v128Param b
)

...

Compares all corresponding elements to see if a > b.

Returns a mask with the result of all comparisons as true/false mask values.

v128 Geo::VCompareIsFinite

...

public: v128 VCompareIsFinite
(
    v128Param v
)

...

Tests all elements of v to see if they are finite or not.

It returns a mask with true/false mask values with the result of these 4 tests. TODO - this function isn't complete yet as it doesn't detect INF values yet!

v128 Geo::VCompareIsNan

...

public: v128 VCompareIsNan
(
    v128Param v
)

...

Tests all elements of v to see if any of them are NANs.

It returns a mask with true/false mask values with the result of these 4 tests.

v128 Geo::VCompareLE

...

public: v128 VCompareLE
(
    v128Param a,
    v128Param b
)

...

Compares all corresponding elements to see if a <= b.

Returns a mask with the result of all comparisons as true/false mask values.

v128 Geo::VCompareLT

...

public: v128 VCompareLT
(
    v128Param a,
    v128Param b
)

...

Compares all corresponding elements to see if a < b.

Returns a mask with the result of all comparisons as true/false mask values.

v128 Geo::VCompareWithFlagsEquals

...

public: v128 VCompareWithFlagsEquals
(
    v128Param a,
    v128Param b,
    u32 & flags
)

...

Compares all corresponding elements to see if a == b (exact equals).

Returns a mask with the result of all comparisons as true/false mask values. It additionally sets flags to be a platform dependent value that encodes the result of the 4 comparisons. You can only use this flag value with the VTestFlags* functions. Do not assume any particular values of the flags as they vary between platforms. The flags enable you to branch from the result of a vpu comparison operation.

v128 Geo::VCompareWithFlagsGE

...

public: v128 VCompareWithFlagsGE
(
    v128Param a,
    v128Param b,
    u32 & flags
)

...

Compares all corresponding elements to see if a >= b.

Returns a mask with the result of all comparisons as true/false mask values. It additionally sets flags to be a platform dependent value that encodes the result of the 4 comparisions. You can only use this flag value with the VTestFlags* functions. Do not assume any particular values of the flags as they vary between platforms. The flags enable you to branch from the result of a vpu comparison operation.

v128 Geo::VCompareWithFlagsGT

...

public: v128 VCompareWithFlagsGT
(
    v128Param a,
    v128Param b,
    u32 & flags
)

...

Compares all corresponding elements to see if a > b.

Returns a mask with the result of all comparisons as true/false mask values. It additionally sets flags to be a platform dependent value that encodes the result of the 4 comparisons. You can only use this flag value with the VTestFlags* functions. Do not assume any particular values of the flags as they vary between platforms. The flags enable you to branch from the result of a vpu comparison operation.

v128 Geo::VCompareWithFlagsLE

...

public: v128 VCompareWithFlagsLE
(
    v128Param a,
    v128Param b,
    u32 & flags
)

...

Compares all corresponding elements to see if a <= b.

Returns a mask with the result of all comparisons as true/false mask values. It additionally sets flags to be a platform dependent value that encodes the result of the 4 comparisons. You can only use this flag value with the VTestFlags* functions. Do not assume any particular values of the flags as they vary between platforms. The flags enable you to branch from the result of a vpu comparison operation.

v128 Geo::VCompareWithFlagsLT

...

public: v128 VCompareWithFlagsLT
(
    v128Param a,
    v128Param b,
    u32 & flags
)

...

Compares all corresponding elements to see if a < b.

Returns a mask with the result of all comparisons as true/false mask values. It additionally sets flags to be a platform dependent value that encodes the result of the 4 comparisons. You can only use this flag value with the VTestFlags* functions. Do not assume any particular values of the flags as they vary between platforms. The flags enable you to branch from the result of a vpu comparison operation.

GEO_FORCE_INLINE v128 Geo::VConstruct

...

public: v128 VConstruct
(
    float x,
    float y,
    float z,
    float w
)

...

Construct a v128 from 4 floats. Fairly slow.

GEO_FORCE_INLINE v128 Geo::VConstructBitwise

...

public: v128 VConstructBitwise
(
    u32 x,
    u32 y,
    u32 z,
    u32 w
)

...

Re-intreprets 4 ints as floats and construct a vector from them.

This is for building a mask if you need one that this file doesn't provide (see below). It's also quite slow, so if you use the mask regularly you might want to declare a static aligned bit of memory and load the vector from that.

v128 Geo::VCross3

...

public: v128 VCross3
(
    v128Param lhs,
    v128Param rhs
)

...

Cross the first 3 elements of each.

Providing the w element of both is finite the resulting w will be 0. If it is not finite the nan or inf will be passed through to the w. (NB: on PPU, w is just cleared.)

GEO_FORCE_INLINE v128 Geo::VCross3ZeroW

...

public: v128 VCross3ZeroW
(
    v128Param lhs,
    v128Param rhs
)

...

Cross the first 3 elements of each.

The w element will be set to zero. The w elements of the parameters are not considered. Prefer this if you are not sure if the w elements of your parameters are finite or not.

GEO_FORCE_INLINE Geo::v128 Geo::VFrac

...

public: Geo::v128 VFrac
(
    Geo::v128Param v
)

...

Returns the fractional part of each element of v.

v128 Geo::VGetMaskNotSignBit

...

public: v128 VGetMaskNotSignBit()

...

Returns a mask with everything but the 4 sign bits set.

v128 Geo::VGetMaskSignBit

...

public: v128 VGetMaskSignBit()

...

Returns a mask with just the 4 sign bits set.

GEO_FORCE_INLINE v128 Geo::VLoadAligned

...

public: v128 VLoadAligned
(
    const float * vecToLoad
)

...

Load a 4-float array from 16-byte aligned memory.

Cannot be null. NOTE: the memory must be aligned or this will crash.

GEO_FORCE_INLINE v128 Geo::VLoadUnaligned

...

public: v128 VLoadUnaligned
(
    const float * vecToLoad
)

...

Load a 4-float array from arbitrarily aligned memory. Cannot be null.

GEO_FORCE_INLINE v128 Geo::VMadd

...

public: Geo::v128 VMadd
(
    Geo::v128Param a,
    Geo::v128Param b,
    Geo::v128Param c
)

...

This is a vector multiply accumulate operation returning (a * b) + c.

GEO_FORCE_INLINE v128 Geo::VNegate

...

public: v128 VNegate
(
    v128Param v
)

...

Return -v. You can use the operator overload instead if you prefer.

GEO_FORCE_INLINE v128 Geo::VOpAnd

...

public: Geo::v128 VOpAnd
(
    Geo::v128Param lhs,
    Geo::v128Param rhs
)

...

This is a bitwise & operation.

You can use this with masks to perform a number of useful operations, including zeroing elements. For example: v128 xz = myVec & VGetMaskXZ();

GEO_FORCE_INLINE v128 Geo::VOpOnesCompl

...

public: Geo::v128 VOpOnesCompl
(
    Geo::v128Param v
)

...

This is a bitwise ~ operation.

You can use this with masks generate the opposite mask.

GEO_FORCE_INLINE v128 Geo::VOpOr

...

public: Geo::v128 VOpOr
(
    Geo::v128Param lhs,
    Geo::v128Param rhs
)

...

This is a bitwise | operation.

You can use this with masks to perform a number of useful operations, including combining vectors and setting sign bits. For example: v128 xyzw = xyonly | zwonly; v128 xznegated = myVec | (VGetMaskSignBit() & VGetMaskXZ());

GEO_FORCE_INLINE v128 Geo::VOpXor

...

public: Geo::v128 VOpXor
(
    Geo::v128Param lhs,
    Geo::v128Param rhs
)

...

This is a bitwise ^ operation.

You can use this with masks to perform a number of useful operations, including toggling sign bits and building masks. For example: v128 xySignsSwapped = myVec ^ (VGetMaskSignBit() & VGetMaskXY());

GEO_FORCE_INLINE v128 Geo::VPackX4

...

public: GEO_FORCE_INLINEGeo::v128 VPackX4
(
    const Geo::v128 & x,
    const Geo::v128 & y,
    const Geo::v128 & z,
    const Geo::v128 & w
)

...

Packs the X component from each of the four vectors into a single vector.

v128 Geo::VPerpendicular

...

public: v128 VPerpendicular
(
    v128Param v,
    float ep
)

...

Returns a vector perpendicular to v (with one of its components being zero).

Must pass a vector with at least one component > g_VecEpsilonF to avoid nasty interactions with VNormalise.

v128 Geo::VRecip

...

public: v128 VRecip
(
    v128Param v
)

...

Return 1.f / v. (inaccurate)

GEO_FORCE_INLINE v128 Geo::VRecipFast

...

public: v128 VRecipFast
(
    v128Param v
)

...

Return 1.f / v. (fast approximate where available. If not, implemented as VRecip)

v128 Geo::VRecipSqrt

...

public: v128 VRecipSqrt
(
    v128Param v
)

...

Return 1.f / sqrt(v). (inaccurate)

v128 Geo::VRecipSqrtAccurate

...

public: v128 VRecipSqrtAccurate
(
    v128Param v
)

...

Return 1.f / sqrt(v). (more accurate)

v128 Geo::VRecipSqrtFast

...

public: v128 VRecipSqrtFast
(
    v128Param v
)

...

Return 1.f / sqrt(v). (inaccurate)

v128 Geo::VReverse

...

public: v128 VReverse
(
    v128Param v
)

...

Reverses the order of the components from xyzw to wzyx.

v128 Geo::VShuffle

...

public: v128 VShuffle
(
    v128Param v,
    int x,
    int y,
    int z,
    int w
)

...

Returns the specified permutation of the parameter vector. Any permutation is valid.

GEO_FORCE_INLINE v128 Geo::VSqrt

...

public: v128 VSqrt
(
    v128Param v
)

...

Return sqrt(v). (more inaccurate than the reciprocal version on non-sse hardware)

bool Geo::VTestFlagsAllFalse

...

public: bool VTestFlagsAllFalse
(
    u32 flags
)

...

Tests the flags produced by the VCompareWithFlags* operations.

This returns true if all 4 comparisons were false.

bool Geo::VTestFlagsAllTrue

...

public: bool VTestFlagsAllTrue
(
    u32 flags
)

...

Tests the flags produced by the VCompareWithFlags* operations.

This returns true if all 4 comparisons were true.

bool Geo::VTestFlagsSomeFalse

...

public: bool VTestFlagsSomeFalse
(
    u32 flags
)

...

Tests the flags produced by the VCompareWithFlags* operations.

This returns true if one or more of the 4 comparisons were false.

bool Geo::VTestFlagsSomeTrue

...

public: bool VTestFlagsSomeTrue
(
    u32 flags
)

...

Tests the flags produced by the VCompareWithFlags* operations.

This returns true if one or more of the 4 comparisons were true.

GEO_FORCE_INLINE v128 Geo::VZero

...

public: v128 VZero()

...

A fully-zeroed out vector.

eVShufflePosition

...

public: enum eVShufflePosition
{
    VSHUF_X = 0,
    VSHUF_Y = 1,
    VSHUF_Z = 2,
    VSHUF_W = 3
}

...

Shuffle constants for the GEO_VSHUFFLE macro.

enumerators