SkAlign.h File Reference

#include "include/private/base/SkAssert.h"
#include <cstddef>

Go to the source code of this file.

Functions
template<typename T >
static constexpr T	SkAlign2 (T x)
template<typename T >
static constexpr T	SkAlign4 (T x)
template<typename T >
static constexpr T	SkAlign8 (T x)
template<typename T >
static constexpr bool	SkIsAlign2 (T x)
template<typename T >
static constexpr bool	SkIsAlign4 (T x)
template<typename T >
static constexpr bool	SkIsAlign8 (T x)
template<typename T >
static constexpr T	SkAlignPtr (T x)
template<typename T >
static constexpr bool	SkIsAlignPtr (T x)
static constexpr size_t	SkAlignTo (size_t x, size_t alignment)

Function Documentation

SkAlign2()

template<typename T >

static constexpr T SkAlign2 ( T  x )

staticconstexpr

Definition at line 15 of file SkAlign.h.

{ return (x + 1) >> 1 << 1; }

SkAlign4()

template<typename T >

static constexpr T SkAlign4 ( T  x )

staticconstexpr

Definition at line 16 of file SkAlign.h.

{ return (x + 3) >> 2 << 2; }

SkAlign8()

template<typename T >

static constexpr T SkAlign8 ( T  x )

staticconstexpr

Definition at line 17 of file SkAlign.h.

{ return (x + 7) >> 3 << 3; }

SkAlignPtr()

template<typename T >

static constexpr T SkAlignPtr ( T  x )

staticconstexpr

Definition at line 23 of file SkAlign.h.

                                                         {
    return sizeof(void*) == 8 ? SkAlign8(x) : SkAlign4(x);
}

SkAlignTo()

static constexpr size_t SkAlignTo ( size_t  x, size_t  alignment  )

inlinestaticconstexpr

align up to a power of 2

Definition at line 33 of file SkAlign.h.

                                                                     {
    // The same as alignment && SkIsPow2(value), w/o a dependency cycle.
    SkASSERT(alignment && (alignment & (alignment - 1)) == 0);
    return (x + alignment - 1) & ~(alignment - 1);
}

SkIsAlign2()

template<typename T >

static constexpr bool SkIsAlign2 ( T  x )

staticconstexpr

Definition at line 19 of file SkAlign.h.

{ return 0 == (x & 1); }

SkIsAlign4()

template<typename T >

static constexpr bool SkIsAlign4 ( T  x )

staticconstexpr

Definition at line 20 of file SkAlign.h.

{ return 0 == (x & 3); }

SkIsAlign8()

template<typename T >

static constexpr bool SkIsAlign8 ( T  x )

staticconstexpr

Definition at line 21 of file SkAlign.h.

{ return 0 == (x & 7); }

SkIsAlignPtr()

template<typename T >

static constexpr bool SkIsAlignPtr ( T  x )

staticconstexpr

Definition at line 26 of file SkAlign.h.

                                                              {
    return sizeof(void*) == 8 ? SkIsAlign8(x) : SkIsAlign4(x);
}