DD::Image::UpRez Class Reference

Inherits DD::Image::Iop.

List of all members.

Public Member Functions
void	_validate (bool)
void	_request (int x, int y, int r, int t, ChannelMask, int count)
void	engine (int y, int x, int r, ChannelMask, Row &)
	UpRez (Node *node)
int	factor () const
void	factor (int v)
void	factor (int v, int w)
int	factor_x () const
void	factor_x (int v)
int	factor_y () const
void	factor_y (int v)
const char *	Class () const
const char *	node_help () const

---

Detailed Description

Scale up the image by an integer factor and using bilinear interpolation. This is fast and predictable and will invert DownRez without shifting the image any, so the pair can be used by the fast blur.

---

Member Function Documentation

void UpRez::_validate

(

bool

for_real

)

[virtual]

_validate() sets the output size to include the 1/2 of an unscaled pixel that will be filled outside the image.

Reimplemented from DD::Image::Iop.

References DD::Image::Iop::input0(), DD::Image::Mask_All, DD::Image::Iop::set_out_channels(), and DD::Image::Op::validate().

void UpRez::_request	(	int	x,
		int	y,
		int	r,
		int	t,
		ChannelMask	m,
		int	n
	)			[virtual]

request() has to request an extra pixel outside the area.

Reimplemented from DD::Image::Iop.

References DD::Image::Iop::input0(), and DD::Image::Iop::request().

void UpRez::engine	(	int	y,
		int	x,
		int	r,
		ChannelMask	channels,
		Row &	row
	)			[virtual]

Implements DD::Image::Iop.

References DD::Image::Op::aborted(), DD::Image::Box::clampx(), DD::Image::Box::clampy(), DD::Image::Row::erase(), DD::Image::Iop::get(), DD::Image::Iop::input0(), DD::Image::Interest::is_zero(), DD::Image::Row::offset(), DD::Image::Row::range(), and DD::Image::Row::writable().