Struct gba_hal::data::BlendAlpha

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

Controls alpha blend.

Both fields are x/16, but values above 16 are capped at 16/16.

For each color channel of an affected 1st target pixel with a valid 2nd target pixel the final channel value is as follows:

• I = min(31, I_1st * EVA + I_2nd * EVB)

If the blend mode isn't set to AlphaBlend, or if the 1st target and 2nd target combination isn't valid for this pixel location then this register has no effect at all.

Methods

impl BlendAlpha

pub const fn new() -> Self

A const "zero value" constructor

impl BlendAlpha

pub const EVA_COEFFICIENT_MASK: u16

pub const fn eva_coefficient(self) -> u16

pub const fn with_eva_coefficient(self, eva_coefficient: u16) -> Self

pub const EVB_COEFFICIENT_MASK: u16

pub const fn evb_coefficient(self) -> u16

pub const fn with_evb_coefficient(self, evb_coefficient: u16) -> Self

Trait Implementations

impl PartialEq<BlendAlpha> for BlendAlpha

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

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

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

This method tests for !=.

impl Eq for BlendAlpha

impl Debug for BlendAlpha

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

Formats the value using the given formatter.

impl Copy for BlendAlpha

impl Clone for BlendAlpha

fn clone(&self) -> BlendAlpha

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for BlendAlpha

fn default() -> BlendAlpha

Returns the "default value" for a type.