Trait femtovg::renderer::Renderer

pub trait Renderer {
    type Image;
    type NativeTexture;

    fn set_size(&mut self, width: u32, height: u32, dpi: f32);
    fn render(
        &mut self, 
        images: &mut ImageStore<Self::Image>, 
        verts: &[Vertex], 
        commands: Vec<Command>
    );
    fn alloc_image(&mut self, info: ImageInfo) -> Result<Self::Image, ErrorKind>;
    fn create_image_from_native_texture(
        &mut self, 
        native_texture: Self::NativeTexture, 
        info: ImageInfo
    ) -> Result<Self::Image, ErrorKind>;
    fn update_image(
        &mut self, 
        image: &mut Self::Image, 
        data: ImageSource<'_>, 
        x: usize, 
        y: usize
    ) -> Result<(), ErrorKind>;
    fn delete_image(&mut self, image: Self::Image, image_id: ImageId);
    fn screenshot(&mut self) -> Result<ImgVec<RGBA8>, ErrorKind>;
}

This is the main renderer trait that the Canvas draws to.

Required Associated Types

type Image

type NativeTexture

Required Methods

fn set_size(&mut self, width: u32, height: u32, dpi: f32)

fn render(
    &mut self,
    images: &mut ImageStore<Self::Image>,
    verts: &[Vertex],
    commands: Vec<Command>
)

fn alloc_image(&mut self, info: ImageInfo) -> Result<Self::Image, ErrorKind>

fn create_image_from_native_texture(
    &mut self,
    native_texture: Self::NativeTexture,
    info: ImageInfo
) -> Result<Self::Image, ErrorKind>

fn update_image(
    &mut self,
    image: &mut Self::Image,
    data: ImageSource<'_>,
    x: usize,
    y: usize
) -> Result<(), ErrorKind>

fn delete_image(&mut self, image: Self::Image, image_id: ImageId)

fn screenshot(&mut self) -> Result<ImgVec<RGBA8>, ErrorKind>

Implementors

impl Renderer for OpenGl

type Image = GlTexture

type NativeTexture = <Context as HasContext>::Texture

impl Renderer for Void

type Image = VoidImage

type NativeTexture = ()