diff options
Diffstat (limited to 'wgpu')
| -rw-r--r-- | wgpu/src/settings.rs | 26 | ||||
| -rw-r--r-- | wgpu/src/window/compositor.rs | 25 |
2 files changed, 41 insertions, 10 deletions
diff --git a/wgpu/src/settings.rs b/wgpu/src/settings.rs index a6aea0a5..b3c3cf6a 100644 --- a/wgpu/src/settings.rs +++ b/wgpu/src/settings.rs @@ -51,3 +51,29 @@ impl From<graphics::Settings> for Settings { } } } + +/// Obtains a [`wgpu::PresentMode`] from the current environment +/// configuration, if set. +/// +/// The value returned by this function can be changed by setting +/// the `ICED_PRESENT_MODE` env variable. The possible values are: +/// +/// - `vsync` → [`wgpu::PresentMode::AutoVsync`] +/// - `no_vsync` → [`wgpu::PresentMode::AutoNoVsync`] +/// - `immediate` → [`wgpu::PresentMode::Immediate`] +/// - `fifo` → [`wgpu::PresentMode::Fifo`] +/// - `fifo_relaxed` → [`wgpu::PresentMode::FifoRelaxed`] +/// - `mailbox` → [`wgpu::PresentMode::Mailbox`] +pub fn present_mode_from_env() -> Option<wgpu::PresentMode> { + let present_mode = std::env::var("ICED_PRESENT_MODE").ok()?; + + match present_mode.to_lowercase().as_str() { + "vsync" => Some(wgpu::PresentMode::AutoVsync), + "no_vsync" => Some(wgpu::PresentMode::AutoNoVsync), + "immediate" => Some(wgpu::PresentMode::Immediate), + "fifo" => Some(wgpu::PresentMode::Fifo), + "fifo_relaxed" => Some(wgpu::PresentMode::FifoRelaxed), + "mailbox" => Some(wgpu::PresentMode::Mailbox), + _ => None, + } +} diff --git a/wgpu/src/window/compositor.rs b/wgpu/src/window/compositor.rs index baf9f315..2e938c77 100644 --- a/wgpu/src/window/compositor.rs +++ b/wgpu/src/window/compositor.rs @@ -4,7 +4,8 @@ use crate::graphics::color; use crate::graphics::compositor; use crate::graphics::error; use crate::graphics::{self, Viewport}; -use crate::{Engine, Renderer, Settings}; +use crate::settings::{self, Settings}; +use crate::{Engine, Renderer}; /// A window graphics backend for iced powered by `wgpu`. #[allow(missing_debug_implementations)] @@ -270,15 +271,19 @@ impl graphics::Compositor for Compositor { backend: Option<&str>, ) -> Result<Self, graphics::Error> { match backend { - None | Some("wgpu") => Ok(new( - Settings { - backends: wgpu::util::backend_bits_from_env() - .unwrap_or(wgpu::Backends::all()), - ..settings.into() - }, - compatible_window, - ) - .await?), + None | Some("wgpu") => { + let mut settings = Settings::from(settings); + + if let Some(backends) = wgpu::util::backend_bits_from_env() { + settings.backends = backends; + } + + if let Some(present_mode) = settings::present_mode_from_env() { + settings.present_mode = present_mode; + } + + Ok(new(settings, compatible_window).await?) + } Some(backend) => Err(graphics::Error::GraphicsAdapterNotFound { backend: "wgpu", reason: error::Reason::DidNotMatch { |