79 lines
2.5 KiB
Rust
79 lines
2.5 KiB
Rust
//! Configure a renderer.
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use crate::core::{Font, Pixels};
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use crate::graphics::{self, Antialiasing};
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/// The settings of a [`Renderer`].
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///
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/// [`Renderer`]: crate::Renderer
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#[derive(Debug, Clone, Copy, PartialEq)]
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pub struct Settings {
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/// The present mode of the [`Renderer`].
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///
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/// [`Renderer`]: crate::Renderer
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pub present_mode: wgpu::PresentMode,
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/// The graphics backends to use.
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pub backends: wgpu::Backends,
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/// The default [`Font`] to use.
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pub default_font: Font,
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/// The default size of text.
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///
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/// By default, it will be set to `16.0`.
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pub default_text_size: Pixels,
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/// The antialiasing strategy that will be used for triangle primitives.
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///
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/// By default, it is `None`.
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pub antialiasing: Option<Antialiasing>,
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}
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impl Default for Settings {
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fn default() -> Settings {
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Settings {
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present_mode: wgpu::PresentMode::AutoVsync,
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backends: wgpu::Backends::all(),
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default_font: Font::default(),
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default_text_size: Pixels(16.0),
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antialiasing: None,
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}
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}
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}
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impl From<graphics::Settings> for Settings {
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fn from(settings: graphics::Settings) -> Self {
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Self {
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default_font: settings.default_font,
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default_text_size: settings.default_text_size,
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antialiasing: settings.antialiasing,
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..Settings::default()
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}
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}
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}
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/// Obtains a [`wgpu::PresentMode`] from the current environment
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/// configuration, if set.
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///
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/// The value returned by this function can be changed by setting
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/// the `ICED_PRESENT_MODE` env variable. The possible values are:
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///
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/// - `vsync` → [`wgpu::PresentMode::AutoVsync`]
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/// - `no_vsync` → [`wgpu::PresentMode::AutoNoVsync`]
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/// - `immediate` → [`wgpu::PresentMode::Immediate`]
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/// - `fifo` → [`wgpu::PresentMode::Fifo`]
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/// - `fifo_relaxed` → [`wgpu::PresentMode::FifoRelaxed`]
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/// - `mailbox` → [`wgpu::PresentMode::Mailbox`]
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pub fn present_mode_from_env() -> Option<wgpu::PresentMode> {
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let present_mode = std::env::var("ICED_PRESENT_MODE").ok()?;
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match present_mode.to_lowercase().as_str() {
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"vsync" => Some(wgpu::PresentMode::AutoVsync),
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"no_vsync" => Some(wgpu::PresentMode::AutoNoVsync),
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"immediate" => Some(wgpu::PresentMode::Immediate),
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"fifo" => Some(wgpu::PresentMode::Fifo),
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"fifo_relaxed" => Some(wgpu::PresentMode::FifoRelaxed),
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"mailbox" => Some(wgpu::PresentMode::Mailbox),
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_ => None,
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}
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}
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