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//! Configure a renderer.
use crate::core::{Font, Pixels};
use crate::graphics::Antialiasing;
/// The settings of a [`Backend`].
///
/// [`Backend`]: crate::Backend
#[derive(Debug, Clone, Copy, PartialEq)]
pub struct Settings {
/// The present mode of the [`Backend`].
///
/// [`Backend`]: crate::Backend
pub present_mode: wgpu::PresentMode,
/// The internal graphics backend to use.
pub internal_backend: wgpu::Backends,
/// The default [`Font`] to use.
pub default_font: Font,
/// The default size of text.
///
/// By default, it will be set to `16.0`.
pub default_text_size: Pixels,
/// The antialiasing strategy that will be used for triangle primitives.
///
/// By default, it is `None`.
pub antialiasing: Option<Antialiasing>,
}
impl Settings {
/// Creates new [`Settings`] using environment configuration.
///
/// Specifically:
///
/// - The `internal_backend` can be configured using the `WGPU_BACKEND`
/// environment variable. If the variable is not set, the primary backend
/// will be used. The following values are allowed:
/// - `vulkan`
/// - `metal`
/// - `dx12`
/// - `dx11`
/// - `gl`
/// - `webgpu`
/// - `primary`
pub fn from_env() -> Self {
Settings {
internal_backend: wgpu::util::backend_bits_from_env()
.unwrap_or(wgpu::Backends::all()),
..Self::default()
}
}
}
impl Default for Settings {
fn default() -> Settings {
Settings {
present_mode: wgpu::PresentMode::AutoVsync,
internal_backend: wgpu::Backends::all(),
default_font: Font::default(),
default_text_size: Pixels(16.0),
antialiasing: None,
}
}
}
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