impeller::BlendColorFilter Class Reference

#include <color_filter.h>

Inheritance diagram for impeller::BlendColorFilter:

Public Member Functions
	BlendColorFilter (BlendMode blend_mode, Color color)
	~BlendColorFilter () override
std::shared_ptr< ColorFilterContents >	WrapWithGPUColorFilter (std::shared_ptr< FilterInput > input, ColorFilterContents::AbsorbOpacity absorb_opacity) const override
	Wraps the given filter input with a GPU-based filter that will perform the color operation. The given input will first be rendered to a texture and then filtered.
ColorFilterProc	GetCPUColorFilterProc () const override
	Returns a function that can be used to filter unpremultiplied Impeller Colors on the CPU.
std::shared_ptr< ColorFilter >	Clone () const override
Public Member Functions inherited from impeller::ColorFilter
	ColorFilter ()
virtual	~ColorFilter ()

Additional Inherited Members
Public Types inherited from impeller::ColorFilter
using	ColorFilterProc = std::function< Color(Color)>
Static Public Member Functions inherited from impeller::ColorFilter
static std::shared_ptr< ColorFilter >	MakeBlend (BlendMode blend_mode, Color color)
static std::shared_ptr< ColorFilter >	MakeMatrix (ColorMatrix color_matrix)
static std::shared_ptr< ColorFilter >	MakeSrgbToLinear ()
static std::shared_ptr< ColorFilter >	MakeLinearToSrgb ()
static std::shared_ptr< ColorFilter >	MakeComposed (const std::shared_ptr< ColorFilter > &outer, const std::shared_ptr< ColorFilter > &inner)

Detailed Description

Definition at line 64 of file color_filter.h.

Constructor & Destructor Documentation

BlendColorFilter()

impeller::BlendColorFilter::BlendColorFilter	(	BlendMode	blend_mode,
		Color	color
	)

Definition at line 50 of file color_filter.cc.

    : blend_mode_(blend_mode), color_(color) {}

~BlendColorFilter()

impeller::BlendColorFilter::~BlendColorFilter ( )

overridedefault

Member Function Documentation

Clone()

std::shared_ptr< ColorFilter > impeller::BlendColorFilter::Clone ( ) const

overridevirtual

Implements impeller::ColorFilter.

Definition at line 70 of file color_filter.cc.

                                                         {
  return std::make_shared<BlendColorFilter>(*this);
}

GetCPUColorFilterProc()

ColorFilter::ColorFilterProc impeller::BlendColorFilter::GetCPUColorFilterProc ( ) const

overridevirtual

Returns a function that can be used to filter unpremultiplied Impeller Colors on the CPU.

Implements impeller::ColorFilter.

Definition at line 64 of file color_filter.cc.

                                                                         {
  return [filter_blend_mode = blend_mode_, filter_color = color_](Color color) {
    return color.Blend(filter_color, filter_blend_mode);
  };
}

WrapWithGPUColorFilter()

std::shared_ptr< ColorFilterContents > impeller::BlendColorFilter::WrapWithGPUColorFilter ( std::shared_ptr< FilterInput >  input, ColorFilterContents::AbsorbOpacity  absorb_opacity  ) const

overridevirtual

Wraps the given filter input with a GPU-based filter that will perform the color operation. The given input will first be rendered to a texture and then filtered.

Note that this operation has no consideration for the original geometry mask of the filter input. And the entire input texture is treated as color information.

Implements impeller::ColorFilter.

Definition at line 55 of file color_filter.cc.

                                                           {
  auto filter =
      ColorFilterContents::MakeBlend(blend_mode_, {std::move(input)}, color_);
  filter->SetAbsorbOpacity(absorb_opacity);
  return filter;
}

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

• impeller/aiks/color_filter.h
• impeller/aiks/color_filter.cc