This is the documentation for Enlighten.
module Half Precision Scalars
- William Joseph
- geosw (Unlicensed)
Classes
| Name | Description |
|---|---|
| Geo::GeoHalf | Convenience value type for a half float. |
Variables
| Name | Description |
|---|---|
| const float g_MaxNegHalfFloat = -65504.0f | Largest representable negative half-float (=-(2 - 2^-10) * 2^15) |
| const float g_MaxPosHalfFloat = 65504.0f | Largest representable positive half-float (=(2 - 2^-10) * 2^15) |
Functions
| Name | Description |
|---|---|
| ConvertFloatToHalf(float) | Convert a float to a half. |
| ConvertFloatToHalfArray(Geo::u16 *, const float *, Geo::u32) | Convert an array of floats to an array of halves. |
| ConvertHalfToFloat(Geo::u16) | Convert a half to a float. |
| ConvertHalfToFloatArray(const Geo::u16 *, float *, Geo::u32) | Convert an array of halves to an array of floats. |
| ConvertV128ToHalfVectorArray(Geo::u64 *, const Geo::v128 *, Geo::u32) | Convert an array of v128s to an array of half vectors. |
| HalfVectorToV128(const Geo::u16 *) | Convert a 4-element array of half floats to a v128. |
| HalfVectorToV128_Portable(const Geo::u16 *) | Convert a 4-element array of half floats to a v128. |
| V128ToHalfVector(Geo::v128, Geo::u16 *) | Convert a v128 to a 4-element array of half floats. |
| V128ToHalfVector_Portable(Geo::v128, Geo::u16 *) | Convert a v128 to a 4-element array of half floats. |
Geo::u16 GEO_CALL Geo::ConvertFloatToHalf
public: Geo::u16GEO_CALL ConvertFloatToHalf
(
  float value
)
Convert a float to a half.
Currently using the portable implementation on all platforms.
void GEO_CALL Geo::ConvertFloatToHalfArray
public: void GEO_CALL ConvertFloatToHalfArray
(
  Geo::u16 * halves,
  const float * floats,
  Geo::u32 count
)
Convert an array of floats to an array of halves.
On SSE platforms a faster implementation is used if:
halves is 8-byte aligned.
floats is 16-byte aligned.
count is a multiple of 4.
float GEO_CALL Geo::ConvertHalfToFloat
public: float GEO_CALL ConvertHalfToFloat
(
  Geo::u16 value
)
Convert a half to a float.
Currently using the portable implementation on all platforms.
void GEO_CALL Geo::ConvertHalfToFloatArray
public: void GEO_CALL ConvertHalfToFloatArray
(
  const Geo::u16 * halves,
  float * floats,
  Geo::u32 count
)
Convert an array of halves to an array of floats.
Currently using the portable implementation on all platforms.
void GEO_CALL Geo::ConvertV128ToHalfVectorArray
public: void GEO_CALL ConvertV128ToHalfVectorArray
(
  Geo::u64 * vHalves,
  const Geo::v128 * v,
  Geo::u32 count
)
Convert an array of v128s to an array of half vectors.
GEO_FORCE_INLINE Geo::v128 GEO_CALL Geo::HalfVectorToV128
public: GEO_FORCE_INLINEGeo::v128GEO_CALL HalfVectorToV128
(
  const Geo::u16 * vHalf
)
Convert a 4-element array of half floats to a v128.
This version acts as a switch board to the optimized versions (where available)
Geo::v128 GEO_CALL Geo::HalfVectorToV128_Portable
public: Geo::v128GEO_CALL HalfVectorToV128_Portable
(
  const Geo::u16 * vHalf
)
Convert a 4-element array of half floats to a v128.
Currently using the portable implementation on all platforms.
GEO_FORCE_INLINE void GEO_CALL Geo::V128ToHalfVector
public: GEO_FORCE_INLINE void GEO_CALL V128ToHalfVector
(
  Geo::v128 fp32,
  Geo::u16 * vOutHalf
)
Convert a v128 to a 4-element array of half floats.
This version acts as a switch board to the optimized versions (where available)
void GEO_CALL Geo::V128ToHalfVector_Portable
public: void GEO_CALL V128ToHalfVector_Portable
(
  Geo::v128 fp32,
  Geo::u16 * vOutHalf
)
Convert a v128 to a 4-element array of half floats.
Currently using the portable implementation on all platforms.