Related Functions

Related functions for Simd::View structure. More...

Functions
template<template< class > class A, class T >
const T &	At (const View< A > &view, size_t x, size_t y)
template<template< class > class A, class T >
T &	At (View< A > &view, size_t x, size_t y)
template<template< class > class A, template< class > class B>
bool	EqualSize (const View< A > &a, const View< B > &b)
template<template< class > class A>
bool	EqualSize (const View< A > &a, const View< A > &b, const View< A > &c)
template<template< class > class A>
bool	EqualSize (const View< A > &a, const View< A > &b, const View< A > &c, const View< A > &d)
template<template< class > class A, template< class > class B>
bool	Compatible (const View< A > &a, const View< B > &b)
template<template< class > class A>
bool	Compatible (const View< A > &a, const View< A > &b, const View< A > &c)
template<template< class > class A>
bool	Compatible (const View< A > &a, const View< A > &b, const View< A > &c, const View< A > &d)
template<template< class > class A>
bool	Compatible (const View< A > &a, const View< A > &b, const View< A > &c, const View< A > &d, const View< A > &e)

Detailed Description

Related functions for Simd::View structure.

Function Documentation

At() [1/2]

const T & At	(	const View< A > &	view,
		size_t	x,
		size_t	y
	)

Returns a const pixel of a view.

The pixel is ((const T*)(view.data + y * view.stride))[x]. The function asserts x < view.width and y < view.height. sizeof(T) is the pixel size. View::At is the method form of this function, and Simd::Pixel::At checks the view format before using it.

Parameters

[in]	view	- an image.
[in]	x	- x coordinate of the pixel.
[in]	y	- y coordinate of the pixel.

Returns

a const reference to the pixel.

At() [2/2]

T & At	(	View< A > &	view,
		size_t	x,
		size_t	y
	)

Returns a pixel of a view.

The address is the same as for the const overload.

Parameters

[in,out]	view	- an image.
[in]	x	- x coordinate of the pixel.
[in]	y	- y coordinate of the pixel.

Returns

a reference to the pixel.

EqualSize() [1/3]

template< template< class > class A, template< class > class B > bool EqualSize	(	const View< A > &	a,
		const View< B > &	b
	)

Checks that two views have the same width and height.

The formats and strides may differ. The two views may use different allocator templates. Simd::Convert asserts EqualSize and then converts between Gray8, Bgr24, Bgra32, Rgb24 and Rgba32. TestCheckCpp relies on that for a 6x6 Bgra32 source and a 6x6 Gray8 destination.

Parameters

[in]	a	- a first image.
[in]	b	- a second image.

Returns

true when the widths are equal and the heights are equal.

EqualSize() [2/3]

template< template< class > class A > bool EqualSize	(	const View< A > &	a,
		const View< A > &	b,
		const View< A > &	c
	)

Checks that three views have the same width and height.

The formats and strides may differ. b and c are both compared with a.

Parameters

[in]	a	- a first image.
[in]	b	- a second image.
[in]	c	- a third image.

Returns

true when all three views have the size of a.

EqualSize() [3/3]

template< template< class > class A > bool EqualSize	(	const View< A > &	a,
		const View< A > &	b,
		const View< A > &	c,
		const View< A > &	d
	)

Checks that four views have the same width and height.

The formats and strides may differ. b, c and d are compared with a.

Parameters

[in]	a	- a first image.
[in]	b	- a second image.
[in]	c	- a third image.
[in]	d	- a fourth image.

Returns

true when all four views have the size of a.

Compatible() [1/4]

template< template< class > class A, template< class > class B > bool Compatible	(	const View< A > &	a,
		const View< B > &	b
	)

Checks that two views have the same width, height and format.

The strides may differ, and the views may use different allocator templates. Simd::Copy asserts Compatible and then copies width * PixelSize() bytes of each row. A Gray8 pyramid level and a Gray8 image of that size are compatible. A Bgra32 view and a Gray8 view of the same size are not; Simd::Convert accepts that pair because it checks EqualSize.

Parameters

[in]	a	- a first image.
[in]	b	- a second image.

Returns

true when the sizes and formats are equal.

Compatible() [2/4]

template< template< class > class A > bool Compatible	(	const View< A > &	a,
		const View< A > &	b,
		const View< A > &	c
	)

Checks that three views have the same width, height and format.

The strides may differ. b and c are both compared with a.

Parameters

[in]	a	- a first image.
[in]	b	- a second image.
[in]	c	- a third image.

Returns

true when all three views have the size and format of a.

Compatible() [3/4]

template< template< class > class A > bool Compatible	(	const View< A > &	a,
		const View< A > &	b,
		const View< A > &	c,
		const View< A > &	d
	)

Checks that four views have the same width, height and format.

The strides may differ. b, c and d are compared with a.

Parameters

[in]	a	- a first image.
[in]	b	- a second image.
[in]	c	- a third image.
[in]	d	- a fourth image.

Returns

true when all four views have the size and format of a.

Compatible() [4/4]

template< template< class > class A > bool Compatible	(	const View< A > &	a,
		const View< A > &	b,
		const View< A > &	c,
		const View< A > &	d,
		const View< A > &	e
	)

Checks that five views have the same width, height and format.

The strides may differ. b, c, d and e are compared with a.

Parameters

[in]	a	- a first image.
[in]	b	- a second image.
[in]	c	- a third image.
[in]	d	- a fourth image.
[in]	e	- a fifth image.

Returns

true when all five views have the size and format of a.