Struct Uniforms 

pub struct Uniforms {
    pub viewport_size: [f32; 2],
    pub texture_size: [f32; 2],
    pub time: f32,
    pub pixel_format: u32,
    /* private fields */
}

Uniforms structure for Metal shaders

This matches the layout expected by SHADER_SOURCE.

Fields

viewport_size: [f32; 2]

Viewport width and height

texture_size: [f32; 2]

Texture width and height

time: f32

Animation time (optional)

pixel_format: u32

Pixel format (raw u32 for GPU compatibility)

Implementations

impl Uniforms

pub fn new( viewport_width: f32, viewport_height: f32, texture_width: f32, texture_height: f32, ) -> Self

Create uniforms for a given viewport and texture size

pub fn from_captured_textures<T>( viewport_width: f32, viewport_height: f32, textures: &CapturedTextures<T>, ) -> Self

Create uniforms from viewport size and captured textures

Automatically extracts texture dimensions and pixel format.

Example

use screencapturekit::metal::{MetalDevice, Uniforms};
use screencapturekit::cm::IOSurface;

fn example(surface: &IOSurface, device: &MetalDevice) {
    if let Some(textures) = surface.create_metal_textures(device) {
        let uniforms = Uniforms::from_captured_textures(1920.0, 1080.0, &textures);
    }
}

pub fn with_pixel_format(self, format: impl Into<FourCharCode>) -> Self

Set the pixel format

Accepts either a FourCharCode or a raw u32:

use screencapturekit::metal::{Uniforms, pixel_format};

let uniforms = Uniforms::new(1920.0, 1080.0, 1920.0, 1080.0)
    .with_pixel_format(pixel_format::BGRA);

pub fn with_time(self, time: f32) -> Self

Set the animation time

Trait Implementations

impl Clone for Uniforms

fn clone(&self) -> Uniforms

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Uniforms

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

Formats the value using the given formatter.

impl Default for Uniforms

fn default() -> Uniforms

Returns the “default value” for a type.

impl Copy for Uniforms