Trait FilterEffect 

pub(crate) trait FilterEffect {
    // Required methods
    fn execute_lowp(
        &self,
        pixmap: &mut Pixmap,
        filter_scratch: &mut ScratchBuffer,
    );
    fn execute_highp(
        &self,
        pixmap: &mut Pixmap,
        filter_scratch: &mut ScratchBuffer,
    );
}

Trait for filter effects that can be applied to layers.

Each filter implements this trait with both u8 and f32 variants to support different rendering backends and precision requirements. The low-precision path (execute_lowp) uses 8-bit color channels for better performance, while the high-precision path (execute_highp) uses 32-bit floating-point for higher quality at the cost of speed.

Required Methods

fn execute_lowp(&self, pixmap: &mut Pixmap, filter_scratch: &mut ScratchBuffer)

Apply the low-precision (u8) version of the filter.

Arguments

• pixmap - The target pixmap containing rendering metadata
• filter_scratch - Reusable scratch storage for intermediate buffers

fn execute_highp(&self, pixmap: &mut Pixmap, filter_scratch: &mut ScratchBuffer)

Apply the high-precision (f32) version of the filter.

Arguments

• pixmap - The target pixmap containing rendering metadata
• filter_scratch - Reusable scratch storage for intermediate buffers

Implementations on Foreign Types

impl FilterEffect for DropShadow

fn execute_lowp(&self, pixmap: &mut Pixmap, filter_scratch: &mut ScratchBuffer)

fn execute_highp(&self, pixmap: &mut Pixmap, filter_scratch: &mut ScratchBuffer)

impl FilterEffect for Flood

fn execute_lowp(&self, pixmap: &mut Pixmap, _filter_scratch: &mut ScratchBuffer)

fn execute_highp( &self, pixmap: &mut Pixmap, _filter_scratch: &mut ScratchBuffer, )

impl FilterEffect for GaussianBlur

fn execute_lowp(&self, pixmap: &mut Pixmap, filter_scratch: &mut ScratchBuffer)

fn execute_highp(&self, pixmap: &mut Pixmap, filter_scratch: &mut ScratchBuffer)

impl FilterEffect for Offset

fn execute_lowp(&self, pixmap: &mut Pixmap, _: &mut ScratchBuffer)

fn execute_highp(&self, pixmap: &mut Pixmap, _: &mut ScratchBuffer)

Implementors