#include <SkMasks.h>

Classes
struct	InputMasks

struct	MaskInfo

Public Member Functions
constexpr	SkMasks (const MaskInfo red, const MaskInfo green, const MaskInfo blue, const MaskInfo alpha)

uint8_t	getRed (uint32_t pixel) const

uint8_t	getGreen (uint32_t pixel) const

uint8_t	getBlue (uint32_t pixel) const

uint8_t	getAlpha (uint32_t pixel) const

uint32_t	getAlphaMask () const

Static Public Member Functions
static SkMasks *	CreateMasks (InputMasks masks, int bytesPerPixel)

Detailed Description

Definition at line 14 of file SkMasks.h.

Constructor & Destructor Documentation

◆ SkMasks()

constexpr SkMasks::SkMasks	(	const MaskInfo	red,
		const MaskInfo	green,
		const MaskInfo	blue,
		const MaskInfo	alpha
	)

inlineconstexpr

Definition at line 23 of file SkMasks.h.

27 : fRed(red), fGreen(green), fBlue(blue), fAlpha(alpha) {}

Member Function Documentation

◆ CreateMasks()

SkMasks * SkMasks::CreateMasks	(	InputMasks	masks,
		int	bytesPerPixel
	)

static

Definition at line 126 of file SkMasks.cpp.

                                                                 {
    SkASSERT(0 < bytesPerPixel && bytesPerPixel <= 4);
 
    // Trim the input masks to match bytesPerPixel.
    if (bytesPerPixel < 4) {
        int bitsPerPixel = 8*bytesPerPixel;
        masks.red   &= (1 << bitsPerPixel) - 1;
        masks.green &= (1 << bitsPerPixel) - 1;
        masks.blue  &= (1 << bitsPerPixel) - 1;
        masks.alpha &= (1 << bitsPerPixel) - 1;
    }
 
    // Check that masks do not overlap.
    if (((masks.red   & masks.green) |
         (masks.red   & masks.blue ) |
         (masks.red   & masks.alpha) |
         (masks.green & masks.blue ) |
         (masks.green & masks.alpha) |
         (masks.blue  & masks.alpha) ) != 0) {
        return nullptr;
    }
 
    return new SkMasks(process_mask(masks.red  ),
                       process_mask(masks.green),
                       process_mask(masks.blue ),
                       process_mask(masks.alpha));
}

◆ getAlpha()

uint8_t SkMasks::getAlpha ( uint32_t pixel ) const

Definition at line 79 of file SkMasks.cpp.

                                              {
    return get_comp(pixel, fAlpha.mask, fAlpha.shift, fAlpha.size);
}

◆ getAlphaMask()

uint32_t SkMasks::getAlphaMask ( ) const

inline

Definition at line 48 of file SkMasks.h.

48{ return fAlpha.mask; }

◆ getBlue()

uint8_t SkMasks::getBlue ( uint32_t pixel ) const

Definition at line 76 of file SkMasks.cpp.

                                             {
    return get_comp(pixel, fBlue.mask, fBlue.shift, fBlue.size);
}

◆ getGreen()

uint8_t SkMasks::getGreen ( uint32_t pixel ) const

Definition at line 73 of file SkMasks.cpp.

                                              {
    return get_comp(pixel, fGreen.mask, fGreen.shift, fGreen.size);
}

◆ getRed()

uint8_t SkMasks::getRed ( uint32_t pixel ) const

Definition at line 70 of file SkMasks.cpp.

                                            {
    return get_comp(pixel, fRed.mask, fRed.shift, fRed.size);
}

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

third_party/skia/src/core/SkMasks.h
third_party/skia/src/core/SkMasks.cpp

Classes

Public Member Functions

Static Public Member Functions