diff options
Diffstat (limited to 'wgpu/src/window')
| -rw-r--r-- | wgpu/src/window/compositor.rs | 168 |
1 files changed, 105 insertions, 63 deletions
diff --git a/wgpu/src/window/compositor.rs b/wgpu/src/window/compositor.rs index 492efb42..b60efd25 100644 --- a/wgpu/src/window/compositor.rs +++ b/wgpu/src/window/compositor.rs @@ -13,6 +13,7 @@ pub struct Compositor { queue: wgpu::Queue, staging_belt: wgpu::util::StagingBelt, local_pool: futures::executor::LocalPool, + format: wgpu::TextureFormat, } impl Compositor { @@ -21,29 +22,42 @@ impl Compositor { /// Requests a new [`Compositor`] with the given [`Settings`]. /// /// Returns `None` if no compatible graphics adapter could be found. - pub async fn request(settings: Settings) -> Option<Self> { - let instance = wgpu::Instance::new(wgpu::BackendBit::PRIMARY); + pub async fn request<W: HasRawWindowHandle>( + settings: Settings, + compatible_window: Option<&W>, + ) -> Option<Self> { + let instance = wgpu::Instance::new(settings.internal_backend); + + #[allow(unsafe_code)] + let compatible_surface = compatible_window + .map(|window| unsafe { instance.create_surface(window) }); let adapter = instance .request_adapter(&wgpu::RequestAdapterOptions { power_preference: if settings.antialiasing.is_none() { - wgpu::PowerPreference::Default + wgpu::PowerPreference::LowPower } else { wgpu::PowerPreference::HighPerformance }, - compatible_surface: None, + compatible_surface: compatible_surface.as_ref(), }) .await?; + let format = compatible_surface + .as_ref() + .and_then(|surf| adapter.get_swap_chain_preferred_format(surf))?; + let (device, queue) = adapter .request_device( &wgpu::DeviceDescriptor { + label: Some( + "iced_wgpu::window::compositor device descriptor", + ), features: wgpu::Features::empty(), limits: wgpu::Limits { max_bind_groups: 2, ..wgpu::Limits::default() }, - shader_validation: false, }, None, ) @@ -60,12 +74,13 @@ impl Compositor { queue, staging_belt, local_pool, + format, }) } /// Creates a new rendering [`Backend`] for this [`Compositor`]. pub fn create_backend(&self) -> Backend { - Backend::new(&self.device, self.settings) + Backend::new(&self.device, self.settings, self.format) } } @@ -75,9 +90,15 @@ impl iced_graphics::window::Compositor for Compositor { type Surface = wgpu::Surface; type SwapChain = wgpu::SwapChain; - fn new(settings: Self::Settings) -> Result<(Self, Renderer), Error> { - let compositor = futures::executor::block_on(Self::request(settings)) - .ok_or(Error::AdapterNotFound)?; + fn new<W: HasRawWindowHandle>( + settings: Self::Settings, + compatible_window: Option<&W>, + ) -> Result<(Self, Renderer), Error> { + let compositor = futures::executor::block_on(Self::request( + settings, + compatible_window, + )) + .ok_or(Error::AdapterNotFound)?; let backend = compositor.create_backend(); @@ -103,8 +124,8 @@ impl iced_graphics::window::Compositor for Compositor { self.device.create_swap_chain( surface, &wgpu::SwapChainDescriptor { - usage: wgpu::TextureUsage::OUTPUT_ATTACHMENT, - format: self.settings.format, + usage: wgpu::TextureUsage::RENDER_ATTACHMENT, + format: self.format, present_mode: self.settings.present_mode, width, height, @@ -120,58 +141,79 @@ impl iced_graphics::window::Compositor for Compositor { background_color: Color, output: &<Self::Renderer as iced_native::Renderer>::Output, overlay: &[T], - ) -> mouse::Interaction { - let frame = swap_chain.get_current_frame().expect("Next frame"); - - let mut encoder = self.device.create_command_encoder( - &wgpu::CommandEncoderDescriptor { - label: Some("iced_wgpu encoder"), + ) -> Result<mouse::Interaction, iced_graphics::window::SwapChainError> { + match swap_chain.get_current_frame() { + Ok(frame) => { + let mut encoder = self.device.create_command_encoder( + &wgpu::CommandEncoderDescriptor { + label: Some("iced_wgpu encoder"), + }, + ); + + let _ = + encoder.begin_render_pass(&wgpu::RenderPassDescriptor { + label: Some( + "iced_wgpu::window::Compositor render pass", + ), + color_attachments: &[wgpu::RenderPassColorAttachment { + view: &frame.output.view, + resolve_target: None, + ops: wgpu::Operations { + load: wgpu::LoadOp::Clear({ + let [r, g, b, a] = + background_color.into_linear(); + + wgpu::Color { + r: f64::from(r), + g: f64::from(g), + b: f64::from(b), + a: f64::from(a), + } + }), + store: true, + }, + }], + depth_stencil_attachment: None, + }); + + let mouse_interaction = renderer.backend_mut().draw( + &mut self.device, + &mut self.staging_belt, + &mut encoder, + &frame.output.view, + viewport, + output, + overlay, + ); + + // Submit work + self.staging_belt.finish(); + self.queue.submit(Some(encoder.finish())); + + // Recall staging buffers + self.local_pool + .spawner() + .spawn(self.staging_belt.recall()) + .expect("Recall staging belt"); + + self.local_pool.run_until_stalled(); + + Ok(mouse_interaction) + } + Err(error) => match error { + wgpu::SwapChainError::Timeout => { + Err(iced_graphics::window::SwapChainError::Timeout) + } + wgpu::SwapChainError::Outdated => { + Err(iced_graphics::window::SwapChainError::Outdated) + } + wgpu::SwapChainError::Lost => { + Err(iced_graphics::window::SwapChainError::Lost) + } + wgpu::SwapChainError::OutOfMemory => { + Err(iced_graphics::window::SwapChainError::OutOfMemory) + } }, - ); - - let _ = encoder.begin_render_pass(&wgpu::RenderPassDescriptor { - color_attachments: &[wgpu::RenderPassColorAttachmentDescriptor { - attachment: &frame.output.view, - resolve_target: None, - ops: wgpu::Operations { - load: wgpu::LoadOp::Clear({ - let [r, g, b, a] = background_color.into_linear(); - - wgpu::Color { - r: f64::from(r), - g: f64::from(g), - b: f64::from(b), - a: f64::from(a), - } - }), - store: true, - }, - }], - depth_stencil_attachment: None, - }); - - let mouse_interaction = renderer.backend_mut().draw( - &mut self.device, - &mut self.staging_belt, - &mut encoder, - &frame.output.view, - viewport, - output, - overlay, - ); - - // Submit work - self.staging_belt.finish(); - self.queue.submit(Some(encoder.finish())); - - // Recall staging buffers - self.local_pool - .spawner() - .spawn(self.staging_belt.recall()) - .expect("Recall staging belt"); - - self.local_pool.run_until_stalled(); - - mouse_interaction + } } } |