saturated_math.h File Reference

#include <algorithm>
#include <limits>
#include <type_traits>
#include "flutter/fml/logging.h"
#include "impeller/geometry/scalar.h"

Go to the source code of this file.

Namespaces
namespace	impeller
namespace	impeller::saturated

Macros
#define	ONLY_ON_SIGNED_INT_RET(Type, Ret)
#define	ONLY_ON_SIGNED_INT(Type)   ONLY_ON_SIGNED_INT_RET(Type, Type)
#define	ONLY_ON_FLOAT_RET(Type, Ret)
#define	ONLY_ON_FLOAT(Type)   ONLY_ON_FLOAT_RET(Type, Type)
#define	ONLY_ON_FLOAT_TO_SIGNED_INT_RET(FPType, SIType, Ret)
#define	ONLY_ON_FLOAT_TO_SIGNED_INT(FPType, SIType)    ONLY_ON_FLOAT_TO_SIGNED_INT_RET(FPType, SIType, SIType)
#define	ONLY_ON_DIFFERING_FLOAT_RET(FPType1, FPType2, Ret)
#define	ONLY_ON_DIFFERING_FLOAT(FPType1, FPType2)    ONLY_ON_DIFFERING_FLOAT_RET(FPType1, FPType2, FPType2)
#define	ONLY_ON_SAME_TYPES_RET(Type1, Type2, Ret)
#define	ONLY_ON_SAME_TYPES(Type1, Type2)    ONLY_ON_SAME_TYPES_RET(Type1, Type2, Type2)

Functions
	impeller::saturated::ONLY_ON_SIGNED_INT (SI) Add(SI location
	impeller::saturated::ONLY_ON_FLOAT (FP) Add(FP location
	impeller::saturated::ONLY_ON_SIGNED_INT_RET (SI, Scalar) AverageScalar(SI a
	impeller::saturated::ONLY_ON_SAME_TYPES (T, U) Cast(T v)
	impeller::saturated::ONLY_ON_FLOAT_TO_SIGNED_INT (FP, SI) Cast(FP v)
	impeller::saturated::ONLY_ON_DIFFERING_FLOAT (FP1, FP2) Cast(FP1 v)

Variables
template<typename T >
constexpr bool	impeller::saturated::is_signed_integral_v
SI	impeller::saturated::distance
SI	impeller::saturated::lower
SI	impeller::saturated::b

Macro Definition Documentation

ONLY_ON_DIFFERING_FLOAT

#define ONLY_ON_DIFFERING_FLOAT	(		FPType1,
			FPType2
	)		ONLY_ON_DIFFERING_FLOAT_RET(FPType1, FPType2, FPType2)

Definition at line 48 of file saturated_math.h.

ONLY_ON_DIFFERING_FLOAT_RET

#define ONLY_ON_DIFFERING_FLOAT_RET	(		FPType1,
			FPType2,
			Ret
	)

Value:

  template <typename FPType1, typename FPType2>                              \
  constexpr inline std::enable_if_t<std::is_floating_point_v<FPType1> &&     \
                                        std::is_floating_point_v<FPType2> && \
                                        !std::is_same_v<FPType1, FPType2>,   \
                                    Ret>

Definition at line 42 of file saturated_math.h.

ONLY_ON_FLOAT

#define ONLY_ON_FLOAT

(

Type

)

ONLY_ON_FLOAT_RET(Type, Type)

Definition at line 33 of file saturated_math.h.

ONLY_ON_FLOAT_RET

#define ONLY_ON_FLOAT_RET	(		Type,
			Ret
	)

Value:

  template <typename Type>           \
  constexpr inline std::enable_if_t<std::is_floating_point_v<Type>, Ret>

Definition at line 30 of file saturated_math.h.

ONLY_ON_FLOAT_TO_SIGNED_INT

#define ONLY_ON_FLOAT_TO_SIGNED_INT	(		FPType,
			SIType
	)		ONLY_ON_FLOAT_TO_SIGNED_INT_RET(FPType, SIType, SIType)

Definition at line 39 of file saturated_math.h.

ONLY_ON_FLOAT_TO_SIGNED_INT_RET

#define ONLY_ON_FLOAT_TO_SIGNED_INT_RET	(		FPType,
			SIType,
			Ret
	)

Value:

  template <typename FPType, typename SIType>                \
  constexpr inline std::enable_if_t<                         \
      std::is_floating_point_v<FPType> && is_signed_integral_v<SIType>, Ret>

Definition at line 35 of file saturated_math.h.

ONLY_ON_SAME_TYPES

#define ONLY_ON_SAME_TYPES	(		Type1,
			Type2
	)		ONLY_ON_SAME_TYPES_RET(Type1, Type2, Type2)

Definition at line 54 of file saturated_math.h.

ONLY_ON_SAME_TYPES_RET

#define ONLY_ON_SAME_TYPES_RET	(		Type1,
			Type2,
			Ret
	)

Value:

  template <typename Type1, typename Type2>       \
  constexpr inline std::enable_if_t<std::is_same_v<Type1, Type2>, Ret>

Definition at line 51 of file saturated_math.h.

ONLY_ON_SIGNED_INT

#define ONLY_ON_SIGNED_INT

(

Type

)

ONLY_ON_SIGNED_INT_RET(Type, Type)

Definition at line 28 of file saturated_math.h.

ONLY_ON_SIGNED_INT_RET

#define ONLY_ON_SIGNED_INT_RET	(		Type,
			Ret
	)

Value:

  template <typename Type>                \
  constexpr inline std::enable_if_t<is_signed_integral_v<Type>, Ret>

Definition at line 25 of file saturated_math.h.