fastuidraw::ArcStrokedPointPacking Namespace Reference

Namespce to encompass packing values and functions of path data for stroking using ArcStrokedPoint. More...

Enumerations
enum	{ arcs_per_cap = 4, num_attributes_per_cap = 3 * arcs_per_cap + 2, num_indices_per_cap = 9 * arcs_per_cap }

Functions
void	pack_cap (const TessellatedPath::cap &cap, unsigned int depth, c_array< PainterAttribute > dst_attribs, c_array< PainterIndex > dst_indices, unsigned int index_adjust)
void	pack_join (const TessellatedPath::join &join, unsigned int depth, c_array< PainterAttribute > dst_attribs, c_array< PainterIndex > dst_indices, unsigned int index_adjust)
void	pack_join_size (const TessellatedPath::join &join, unsigned int *num_attributes, unsigned int *num_indices)
void	pack_segment_chain (c_array< const TessellatedPath::segment_chain > chains, unsigned int depth_start, c_array< PainterAttribute > dst_attribs, c_array< PainterIndex > dst_indices, unsigned int index_adjust)
void	pack_segment_chain (const TessellatedPath::segment_chain &chain, unsigned int depth_start, c_array< PainterAttribute > dst_attribs, c_array< PainterIndex > dst_indices, unsigned int index_adjust)
void	pack_segment_chain_size (c_array< const TessellatedPath::segment_chain > chains, unsigned int *depth_range_size, unsigned int *num_attributes, unsigned int *num_indices)
void	pack_segment_chain_size (const TessellatedPath::segment_chain &chain, unsigned int *depth_range_size, unsigned int *num_attributes, unsigned int *num_indices)

Detailed Description

Namespce to encompass packing values and functions of path data for stroking using ArcStrokedPoint.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
num_attributes_per_cap	Number of attributes needed for realizing a rounded cap with packed ArcStrokedPoint values.
num_indices_per_cap	Number of indices needed for realizing a rounded cap with packed ArcStrokedPoint values.

Definition at line 424 of file arc_stroked_point.hpp.

Function Documentation

pack_cap()

void fastuidraw::ArcStrokedPointPacking::pack_cap	(	const TessellatedPath::cap &	cap,
		unsigned int	depth,
		c_array< PainterAttribute >	dst_attribs,
		c_array< PainterIndex >	dst_indices,
		unsigned int	index_adjust
	)

Pack a cap into attribute data and index data realized with ArcStrokedPoint.

Parameters

cap	cap data to pack
depth	the value for ArcStrokedPoint::depth() of the packed ArcStrokedPoint values
dst_attribs	location to which to place the attributes, the size of dst_attribs must be num_attributes_per_cap
dst_indices	location to which to place the indices, the size of dst_indices must be num_indices_per_cap.
index_adjust	value by which to increment the written index values

pack_join()

void fastuidraw::ArcStrokedPointPacking::pack_join	(	const TessellatedPath::join &	join,
		unsigned int	depth,
		c_array< PainterAttribute >	dst_attribs,
		c_array< PainterIndex >	dst_indices,
		unsigned int	index_adjust
	)

Pack a join into attribute data and index data realized with ArcStrokedPoint.

Parameters

join	join data to pack
depth	the value for ArcStrokedPoint::depth() of the packed ArcStrokedPoint values
dst_attribs	location to which to place the attributes, the size of dst_attribs must be as indicated by pack_join_size().
dst_indices	location to which to place the indices, the size of dst_indices must be as indicated by pack_join_size().
index_adjust	value by which to increment the written index values

pack_join_size()

void fastuidraw::ArcStrokedPointPacking::pack_join_size	(	const TessellatedPath::join &	join,
		unsigned int *	num_attributes,
		unsigned int *	num_indices
	)

Returns the number of attributes realized with ArcStrokedPoint needed to pack a join (to be drawn with he join style PainterEnums::rounded_joins).

Parameters

join	join to realize a packed data
num_attributes	location to which to write the needed number of attributes
num_indices	location to which to write the needed number of indices

pack_segment_chain() [1/2]

void fastuidraw::ArcStrokedPointPacking::pack_segment_chain	(	c_array< const TessellatedPath::segment_chain >	chains,
		unsigned int	depth_start,
		c_array< PainterAttribute >	dst_attribs,
		c_array< PainterIndex >	dst_indices,
		unsigned int	index_adjust
	)

Pack an array of segments chains realized as ArcStrokedPoint

Parameters

chains	segment chain to pack
depth_start	value the lowest depth value for the attributes; the packed ArcStrokedPoint values will have depth_start <= ArcStrokedPoint::depth() and ArcStrokedPoint::depth() < depth_start + depth_range_size where depth_range_size is as indicated by pack_segment_chain_size().
dst_attribs	location to which to place the attributes, the size of dst_attribs must be as indicated by pack_segment_chain_size().
dst_indices	location to which to place the indices, the size of dst_indices must be as indicated by pack_segment_chain_size().
index_adjust	value by which to increment the written index values

pack_segment_chain() [2/2]

void fastuidraw::ArcStrokedPointPacking::pack_segment_chain	(	const TessellatedPath::segment_chain &	chain,
		unsigned int	depth_start,
		c_array< PainterAttribute >	dst_attribs,
		c_array< PainterIndex >	dst_indices,
		unsigned int	index_adjust
	)

Pack a single segment chain realized as ArcStrokedPoint

Parameters

chain	segment chain to pack
depth_start	value the lowest depth value for the attributes; the packed StrokedPoint values will have depth_start <= StrokedPoint::depth() and StrokedPoint::depth() < depth_start + depth_range_size where depth_range_size is as indicated by pack_segment_chain_size().
dst_attribs	location to which to place the attributes, the size of dst_attribs must be as indicated by pack_segment_chain_size().
dst_indices	location to which to place the indices, the size of dst_indices must be as indicated by pack_segment_chain_size().
index_adjust	value by which to increment the written index values

pack_segment_chain_size() [1/2]

void fastuidraw::ArcStrokedPointPacking::pack_segment_chain_size	(	c_array< const TessellatedPath::segment_chain >	chains,
		unsigned int *	depth_range_size,
		unsigned int *	num_attributes,
		unsigned int *	num_indices
	)

Computes the number of indices and attributes necessary to pack an array of TessellatedPath::segment_chain values.

Parameters

chains	segment chain to query amount room needed to pack realized by ArcStrokedPoint
depth_range_size	location to which to write the depth range needed to pack the segment chain.
num_attributes	location to which to write the needed number of attributes
num_indices	location to which to write the needed number of indices

pack_segment_chain_size() [2/2]

void fastuidraw::ArcStrokedPointPacking::pack_segment_chain_size	(	const TessellatedPath::segment_chain &	chain,
		unsigned int *	depth_range_size,
		unsigned int *	num_attributes,
		unsigned int *	num_indices
	)

Computes the number of indices and attributes necessary to pack a single TessellatedPath::segment_chain value.

Parameters

chain	segment chain to query amount room needed to pack realized by StrokedPoint
depth_range_size	location to which to write the depth range needed to pack the segment chain.
num_attributes	location to which to write the needed number of attributes
num_indices	location to which to write the needed number of indices