Represents a 24-bit RGB pixel, and can perform compositing operations on it. More...
#include <juce_PixelFormats.h>
Public Types | |
enum | { indexR = 0, indexG = 1, indexB = 2 } |
The indexes of the different components in the byte layout of this type of colour. More... | |
Public Member Functions | |
PixelRGB () noexcept=default | |
Creates a pixel without defining its colour. More... | |
template<class Pixel > | |
forcedinline void | blend (const Pixel &src) noexcept |
Blends another pixel onto this one. More... | |
template<class Pixel > | |
forcedinline void | blend (const Pixel &src, uint32 extraAlpha) noexcept |
Blends another pixel onto this one, applying an extra multiplier to its opacity. More... | |
forcedinline void | blend (PixelRGB src) noexcept |
forcedinline void | desaturate () noexcept |
forcedinline uint8 | getAlpha () const noexcept |
forcedinline uint8 | getBlue () const noexcept |
forcedinline uint32 | getEvenBytes () const noexcept |
Return channels with an even index and insert zero bytes between them. More... | |
forcedinline uint8 | getGreen () const noexcept |
forcedinline uint32 | getInARGBMaskOrder () const noexcept |
Returns a uint32 which will be in argb order as if constructed with the following mask operation ((alpha << 24) | (red << 16) | (green << 8) | blue). More... | |
uint32 | getInARGBMemoryOrder () const noexcept |
Returns a uint32 which when written to memory, will be in the order a, r, g, b. More... | |
forcedinline uint32 | getNativeARGB () const noexcept |
Returns a uint32 which represents the pixel in a platform dependent format which is compatible with the native format of a PixelARGB. More... | |
forcedinline uint32 | getOddBytes () const noexcept |
Return channels with an odd index and insert zero bytes between them. More... | |
forcedinline uint8 | getRed () const noexcept |
forcedinline void | multiplyAlpha (float) noexcept |
Multiplies the colour's alpha value with another one. More... | |
forcedinline void | multiplyAlpha (int) noexcept |
Multiplies the colour's alpha value with another one. More... | |
forcedinline void | premultiply () noexcept |
Premultiplies the pixel's RGB values by its alpha. More... | |
template<class Pixel > | |
forcedinline void | set (const Pixel &src) noexcept |
Copies another pixel colour over this one. More... | |
forcedinline void | setAlpha (uint8) noexcept |
This method is included for compatibility with the PixelARGB class. More... | |
void | setARGB (uint8, uint8 red, uint8 green, uint8 blue) noexcept |
Sets the pixel's colour from individual components. More... | |
template<class Pixel > | |
forcedinline void | tween (const Pixel &src, uint32 amount) noexcept |
Blends another pixel with this one, creating a colour that is somewhere between the two, as specified by the amount. More... | |
forcedinline void | unpremultiply () noexcept |
Unpremultiplies the pixel's RGB values. More... | |
Private Member Functions | |
PixelRGB (uint32 internal) noexcept | |
Private Attributes | |
uint8 | b |
uint8 | g |
uint8 | r |
Represents a 24-bit RGB pixel, and can perform compositing operations on it.
This is used internally by the imaging classes.
@tags{Graphics}
anonymous enum |
|
defaultnoexcept |
Creates a pixel without defining its colour.
|
inlineprivatenoexcept |
References juce::gl::b, juce::gl::g, and juce::gl::r.
|
inlinenoexcept |
Blends another pixel onto this one.
This takes into account the opacity of the pixel being overlaid, and blends it accordingly.
References juce::gl::alpha, juce::gl::b, juce::clampPixelComponents(), juce::gl::g, juce::maskPixelComponents(), juce::gl::r, and juce::gl::src.
|
inlinenoexcept |
Blends another pixel onto this one, applying an extra multiplier to its opacity.
The opacity of the pixel being overlaid is scaled by the extraAlpha factor before being used, so this can blend semi-transparently from a PixelRGB argument.
References juce::gl::alpha, juce::gl::b, juce::clampPixelComponents(), juce::gl::g, juce::maskPixelComponents(), juce::gl::r, and juce::gl::src.
|
inlinenoexcept |
References juce::gl::src.
|
inlinenoexcept |
References juce::gl::b, juce::gl::g, and juce::gl::r.
|
inlinenoexcept |
|
inlinenoexcept |
References juce::gl::b.
|
inlinenoexcept |
Return channels with an even index and insert zero bytes between them.
This is useful for blending operations. The exact channels which are returned is platform dependent but compatible with the return value of getEvenBytes of the PixelARGB class.
References juce::gl::b, and juce::gl::r.
|
inlinenoexcept |
References juce::gl::g.
|
inlinenoexcept |
Returns a uint32 which will be in argb order as if constructed with the following mask operation ((alpha << 24) | (red << 16) | (green << 8) | blue).
References juce::gl::b, juce::gl::g, and juce::gl::r.
|
inlinenoexcept |
Returns a uint32 which when written to memory, will be in the order a, r, g, b.
In other words, if the return-value is read as a uint8 array then the elements will be in the order of a, r, g, b
References juce::gl::b, juce::gl::g, and juce::gl::r.
|
inlinenoexcept |
Returns a uint32 which represents the pixel in a platform dependent format which is compatible with the native format of a PixelARGB.
References juce::gl::b, juce::gl::g, and juce::gl::r.
|
inlinenoexcept |
Return channels with an odd index and insert zero bytes between them.
This is useful for blending operations. The exact channels which are returned is platform dependent but compatible with the return value of getOddBytes of the PixelARGB class.
References juce::gl::g.
|
inlinenoexcept |
References juce::gl::r.
|
inlinenoexcept |
Multiplies the colour's alpha value with another one.
|
inlinenoexcept |
Multiplies the colour's alpha value with another one.
|
inlinenoexcept |
Premultiplies the pixel's RGB values by its alpha.
|
inlinenoexcept |
Copies another pixel colour over this one.
This doesn't blend it - this colour is simply replaced by the other one. Because PixelRGB has no alpha channel, any alpha value in the source pixel is thrown away.
References juce::gl::b, juce::gl::g, juce::gl::r, and juce::gl::src.
|
inlinenoexcept |
This method is included for compatibility with the PixelARGB class.
Sets the pixel's colour from individual components.
References juce::gl::b, juce::Colours::blue, juce::gl::g, juce::Colours::green, juce::gl::r, and juce::Colours::red.
|
inlinenoexcept |
Blends another pixel with this one, creating a colour that is somewhere between the two, as specified by the amount.
References juce::gl::b, juce::gl::g, juce::gl::r, and juce::gl::src.
|
inlinenoexcept |
Unpremultiplies the pixel's RGB values.
|
private |
|
private |
|
private |