cairo-templates.h File Reference

Cairo software blending templates. More...

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Classes
struct	surface_accessor< T >
struct	SurfaceSynth

Functions
template<typename AccOut , typename Acc1 , typename Acc2 , typename Blend >
void	ink_cairo_surface_blend_internal (cairo_surface_t *out, cairo_surface_t *in1, cairo_surface_t *in2, int w, int h, Blend &blend)
template<typename AccOut , typename AccIn , typename Filter >
void	ink_cairo_surface_filter_internal (cairo_surface_t *out, cairo_surface_t *in, int w, int h, Filter &filter)
template<typename AccOut , typename Synth >
void	ink_cairo_surface_synthesize_internal (cairo_surface_t *out, int x0, int y0, int x1, int y1, Synth &synth)
template<typename Blend >
void	ink_cairo_surface_blend (cairo_surface_t *in1, cairo_surface_t *in2, cairo_surface_t *out, Blend &&blend)
	Blend two surfaces using the supplied functor.
template<typename Filter >
void	ink_cairo_surface_filter (cairo_surface_t *in, cairo_surface_t *out, Filter &&filter)
template<typename Synth >
void	ink_cairo_surface_synthesize (cairo_surface_t *out, cairo_rectangle_t const &out_area, Synth &&synth)
	Synthesize surface pixels based on their position.
template<typename Synth >
void	ink_cairo_surface_synthesize (cairo_surface_t *out, Synth synth)
G_GNUC_CONST gint32	pxclamp (gint32 v, gint32 low, gint32 high)

Variables
static const int	POOL_THRESHOLD = 2048

Detailed Description

Cairo software blending templates.

Definition in file cairo-templates.h.

Function Documentation

ink_cairo_surface_blend()

template<typename Blend >

void ink_cairo_surface_blend	(	cairo_surface_t *	in1,
		cairo_surface_t *	in2,
		cairo_surface_t *	out,
		Blend &&	blend
	)

Blend two surfaces using the supplied functor.

This template blends two Cairo image surfaces using a blending functor that takes two 32-bit ARGB pixel values and returns a modified 32-bit pixel value. Differences in input surface formats are handled transparently. In future, this template will also handle software fallback for GL surfaces.

Definition at line 122 of file cairo-templates.h.

References w.

Referenced by Inkscape::Filters::FilterComposite::render_cairo().

ink_cairo_surface_blend_internal()

template<typename AccOut , typename Acc1 , typename Acc2 , typename Blend >

void ink_cairo_surface_blend_internal	(	cairo_surface_t *	out,
		cairo_surface_t *	in1,
		cairo_surface_t *	in2,
		int	w,
		int	h,
		Blend &	blend
	)

Definition at line 61 of file cairo-templates.h.

References surface_accessor< T >::get(), POOL_THRESHOLD, surface_accessor< T >::set(), and w.

ink_cairo_surface_filter()

template<typename Filter >

void ink_cairo_surface_filter	(	cairo_surface_t *	in,
		cairo_surface_t *	out,
		Filter &&	filter
	)

Definition at line 152 of file cairo-templates.h.

References w.

Referenced by Inkscape::DrawingImage::_renderItem(), ink_cairo_surface_linear_to_srgb(), ink_cairo_surface_srgb_to_linear(), Inkscape::DrawingItem::render(), Inkscape::Filters::FilterColorMatrix::render_cairo(), and Inkscape::Filters::FilterComponentTransfer::render_cairo().

ink_cairo_surface_filter_internal()

template<typename AccOut , typename AccIn , typename Filter >

void ink_cairo_surface_filter_internal	(	cairo_surface_t *	out,
		cairo_surface_t *	in,
		int	w,
		int	h,
		Filter &	filter
	)

Definition at line 79 of file cairo-templates.h.

References surface_accessor< T >::get(), POOL_THRESHOLD, surface_accessor< T >::set(), and w.

ink_cairo_surface_synthesize() [1/2]

template<typename Synth >

void ink_cairo_surface_synthesize	(	cairo_surface_t *	out,
		cairo_rectangle_t const &	out_area,
		Synth &&	synth
	)

Synthesize surface pixels based on their position.

This template accepts a functor that gets called with the x and y coordinates of the pixels, given as integers.

Parameters

out	Output surface
out_area	The region of the output surface that should be synthesized
synth	Synthesis functor

Definition at line 190 of file cairo-templates.h.

Referenced by ink_cairo_surface_synthesize(), Inkscape::Filters::FilterConvolveMatrix::render_cairo(), Inkscape::Filters::FilterDiffuseLighting::render_cairo(), Inkscape::Filters::FilterDisplacementMap::render_cairo(), Inkscape::Filters::FilterSpecularLighting::render_cairo(), and Inkscape::Filters::FilterTurbulence::render_cairo().

ink_cairo_surface_synthesize() [2/2]

template<typename Synth >

void ink_cairo_surface_synthesize	(	cairo_surface_t *	out,
		Synth	synth
	)

Definition at line 210 of file cairo-templates.h.

References ink_cairo_surface_synthesize(), and w.

ink_cairo_surface_synthesize_internal()

template<typename AccOut , typename Synth >

void ink_cairo_surface_synthesize_internal	(	cairo_surface_t *	out,
		int	x0,
		int	y0,
		int	x1,
		int	y1,
		Synth &	synth
	)

Definition at line 96 of file cairo-templates.h.

References limit, POOL_THRESHOLD, and surface_accessor< T >::set().

pxclamp()

G_GNUC_CONST gint32 pxclamp ( gint32  v, gint32  low, gint32  high  )

inline

Definition at line 466 of file cairo-templates.h.

Referenced by Inkscape::Filters::FilterColorMatrix::ColorMatrixMatrix::operator()().

Variable Documentation

POOL_THRESHOLD

const int POOL_THRESHOLD = 2048

static

Definition at line 19 of file cairo-templates.h.

Referenced by ink_cairo_surface_blend_internal(), ink_cairo_surface_filter_internal(), and ink_cairo_surface_synthesize_internal().