Struct gba_hal::data::BlendBrightness

#[repr(transparent)]
pub struct BlendBrightness(_);

Controls brightness blend.

This is x/16, but values above 16 are capped at 16/16.

For each color channel of an affected 1st target pixel the final channel value is as follows:

• Increase: I = I_1st + (31 - I_1st) * EVY
• Decrease: I = I_1st - I_1st * EVY

If the blend mode isn't set to BrightnessIncrease or BrightnessDecrease this register has no effect at all.

Methods

impl BlendBrightness

pub const fn new() -> Self

A const "zero value" constructor

impl BlendBrightness

pub const EVY_COEFFICIENT_MASK: u16

pub const fn evy_coefficient(self) -> u16

pub const fn with_evy_coefficient(self, evy_coefficient: u16) -> Self

Trait Implementations

impl PartialEq<BlendBrightness> for BlendBrightness

fn eq(&self, other: &BlendBrightness) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &BlendBrightness) -> bool

This method tests for !=.

impl Eq for BlendBrightness

impl Debug for BlendBrightness

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Copy for BlendBrightness

impl Clone for BlendBrightness

fn clone(&self) -> BlendBrightness

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for BlendBrightness

fn default() -> BlendBrightness

Returns the "default value" for a type.