usg::ImageInterface Class Reference

#include <ImageInterface.h>

Classes
class	Description

Public Member Functions
	ImageInterface (const std::string &nodepath)
virtual const std::string &	nodepath () const
	Path string identifying a Nuke Node by name and context.
virtual int32_t	width () const
virtual int32_t	height () const
virtual int32_t	numChannels () const
virtual bool	isValid () const
	Is the image configured and a valid size? Default version tests that W/H/D is non-zero.
virtual bool	getMetadata (const Token &key, Value *value) const
virtual bool	read (const fdk::Box2i &active_bbox, int32_t num_chans, int32_t bytes_per_channel, bool signed_type, bool apply_srgb_correction, void *buffer)

Static Public Member Functions
static const Description *	find (const char *identifier)

Protected Attributes
std::string	_nodepath
	Usually assigned in ctor.

Detailed Description

Abstract wrapper for a HioImage subclass specifically for Nuke's internal use connecting an in-memory DDImage Op/Iop to a Hydra texture reader.

Image orienation matches Y-up Nuke - lower-left corner = 0,0 and the endpoint-exclusive top-right corner = width(),height().

Only the methods needed for DDImage to interface with this class are exposed.

Member Function Documentation

find()

static const Description * usg::ImageInterface::find ( const char *  identifier )

static

Find an ImageInterface description by image indentifier name. This does not currently support searching for plugin files, it assumes a static Description was compiled into an existing plugin.

width()

virtual int32_t usg::ImageInterface::width ( ) const

inlinevirtual

Total image width with left edge assumed to be at 0 and the endpoint-exclusive right edge equal to width().

height()

virtual int32_t usg::ImageInterface::height ( ) const

inlinevirtual

Total image height with bottom edge assumed to be at 0 and the endpoint-exclusive top edge equal to height().

numChannels()

virtual int32_t usg::ImageInterface::numChannels ( ) const

inlinevirtual

Channel count can be 0,1,2,3 or 4 only. ie max number of channels is 4.

read()

virtual bool usg::ImageInterface::read ( const fdk::Box2i &  active_bbox, int32_t  num_chans, int32_t  bytes_per_channel, bool  signed_type, bool  apply_srgb_correction, void *  buffer  )

virtual

Fill the interleaved(packed) image data buffer which is allocated based on the width() Note that 'active_bbox' is in standard Nuke DD::Image::Box notation(endpoint-exclusive) and will be clamped to [0 0 width() height()]. Returns true if no error.