roo_display::SimpleTiledRasterizable< Getter > Class Template Reference

"Infinite" rasterizable background by tiling a finite raster. More...

#include <rasterizable.h>

Inheritance diagram for roo_display::SimpleTiledRasterizable< Getter >:

Collaboration diagram for roo_display::SimpleTiledRasterizable< Getter >:

Public Member Functions
	SimpleTiledRasterizable (const Box &extents, Getter getter, TransparencyMode transparency)
	SimpleTiledRasterizable (const Box &extents, Getter getter, TransparencyMode transparency, int16_t x_offset, int16_t y_offset)
Box	extents () const override
	Return the bounding box encompassing all pixels that need to be drawn.
void	readColors (const int16_t *x, const int16_t *y, uint32_t count, Color *result) const override
	Read colors for the given points.
TransparencyMode	getTransparencyMode () const override
	Return the transparency mode for pixels in this stream.
Public Member Functions inherited from roo_display::Rasterizable
void	readColorsMaybeOutOfBounds (const int16_t *x, const int16_t *y, uint32_t count, Color *result, Color out_of_bounds_color=color::Transparent) const
	Read colors for points that may be out of bounds.
virtual bool	readColorRect (int16_t xMin, int16_t yMin, int16_t xMax, int16_t yMax, Color *result) const
	Read colors for a rectangle.
std::unique_ptr< PixelStream >	createStream () const override
	Default createStream() using readColors().
std::unique_ptr< PixelStream >	createStream (const Box &bounds) const override
	Default createStream() for a clipped box using readColors().
Public Member Functions inherited from roo_display::Drawable
virtual	~Drawable ()
virtual Box	anchorExtents () const
	Return the bounds used for alignment.

Additional Inherited Members
Static Public Member Functions inherited from roo_display::Drawable
static const Drawable *	Empty ()
	A singleton representing a no-op drawable with no bounding box.
Protected Member Functions inherited from roo_display::Rasterizable
void	drawTo (const Surface &s) const override
	Default drawTo() using readColors().

Detailed Description

template<typename Getter>
class roo_display::SimpleTiledRasterizable< Getter >

"Infinite" rasterizable background by tiling a finite raster.

Definition at line 92 of file rasterizable.h.

Constructor & Destructor Documentation

SimpleTiledRasterizable() [1/2]

template<typename Getter >

roo_display::SimpleTiledRasterizable< Getter >::SimpleTiledRasterizable ( const Box &  extents, Getter  getter, TransparencyMode  transparency  )

inline

Definition at line 94 of file rasterizable.h.

SimpleTiledRasterizable() [2/2]

template<typename Getter >

roo_display::SimpleTiledRasterizable< Getter >::SimpleTiledRasterizable ( const Box &  extents, Getter  getter, TransparencyMode  transparency, int16_t  x_offset, int16_t  y_offset  )

inline

Definition at line 98 of file rasterizable.h.

Member Function Documentation

extents()

template<typename Getter >

Box roo_display::SimpleTiledRasterizable< Getter >::extents ( ) const

inlineoverridevirtual

Return the bounding box encompassing all pixels that need to be drawn.

This method is called during a transaction and must not block or perform I/O.

Implements roo_display::Drawable.

Definition at line 107 of file rasterizable.h.

References roo_display::Box::MaximumBox().

getTransparencyMode()

template<typename Getter >

TransparencyMode roo_display::SimpleTiledRasterizable< Getter >::getTransparencyMode ( ) const

inlineoverridevirtual

Return the transparency mode for pixels in this stream.

This is an optimization hint. The default is TransparencyMode::kFull, which is always safe. If pixels are guaranteed fully opaque or 1-bit alpha, return TransparencyMode::kNone or TransparencyMode::kCrude to enable faster blending paths.

Reimplemented from roo_display::Streamable.

Definition at line 120 of file rasterizable.h.

readColors()

template<typename Getter >

void roo_display::SimpleTiledRasterizable< Getter >::readColors ( const int16_t *  x, const int16_t *  y, uint32_t  count, Color *  result  ) const

inlineoverridevirtual

Read colors for the given points.

The caller must ensure all points are within bounds.

Implements roo_display::Rasterizable.

Definition at line 109 of file rasterizable.h.

References roo_display::Box::height(), roo_display::Box::width(), roo_display::Box::xMin(), and roo_display::Box::yMin().

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The documentation for this class was generated from the following file:

• temp_repos/roo_display/src/roo_display/core/rasterizable.h