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Diffstat (limited to 'examples/integration/src/main.rs')
| -rw-r--r-- | examples/integration/src/main.rs | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/examples/integration/src/main.rs b/examples/integration/src/main.rs deleted file mode 100644 index 6f319466..00000000 --- a/examples/integration/src/main.rs +++ /dev/null @@ -1,239 +0,0 @@ -mod controls; -mod scene; - -use controls::Controls; -use scene::Scene; - -use iced_wgpu::{wgpu, Backend, Renderer, Settings, Viewport}; -use iced_winit::{conversion, futures, program, winit, Clipboard, Debug, Size}; - -use futures::task::SpawnExt; -use winit::{ - dpi::PhysicalPosition, - event::{Event, ModifiersState, WindowEvent}, - event_loop::{ControlFlow, EventLoop}, -}; - -pub fn main() { - env_logger::init(); - - // Initialize winit - let event_loop = EventLoop::new(); - let window = winit::window::Window::new(&event_loop).unwrap(); - - let physical_size = window.inner_size(); - let mut viewport = Viewport::with_physical_size( - Size::new(physical_size.width, physical_size.height), - window.scale_factor(), - ); - let mut cursor_position = PhysicalPosition::new(-1.0, -1.0); - let mut modifiers = ModifiersState::default(); - let mut clipboard = Clipboard::connect(&window); - - // Initialize wgpu - let instance = wgpu::Instance::new(wgpu::BackendBit::PRIMARY); - let surface = unsafe { instance.create_surface(&window) }; - - let (format, (mut device, queue)) = futures::executor::block_on(async { - let adapter = instance - .request_adapter(&wgpu::RequestAdapterOptions { - power_preference: wgpu::PowerPreference::HighPerformance, - compatible_surface: Some(&surface), - }) - .await - .expect("Request adapter"); - - ( - adapter - .get_swap_chain_preferred_format(&surface) - .expect("Get preferred format"), - adapter - .request_device( - &wgpu::DeviceDescriptor { - label: None, - features: wgpu::Features::empty(), - limits: wgpu::Limits::default(), - }, - None, - ) - .await - .expect("Request device"), - ) - }); - - let mut swap_chain = { - let size = window.inner_size(); - - device.create_swap_chain( - &surface, - &wgpu::SwapChainDescriptor { - usage: wgpu::TextureUsage::RENDER_ATTACHMENT, - format, - width: size.width, - height: size.height, - present_mode: wgpu::PresentMode::Mailbox, - }, - ) - }; - let mut resized = false; - - // Initialize staging belt and local pool - let mut staging_belt = wgpu::util::StagingBelt::new(5 * 1024); - let mut local_pool = futures::executor::LocalPool::new(); - - // Initialize scene and GUI controls - let scene = Scene::new(&mut device); - let controls = Controls::new(); - - // Initialize iced - let mut debug = Debug::new(); - let mut renderer = - Renderer::new(Backend::new(&mut device, Settings::default(), format)); - - let mut state = program::State::new( - controls, - viewport.logical_size(), - conversion::cursor_position(cursor_position, viewport.scale_factor()), - &mut renderer, - &mut debug, - ); - - // Run event loop - event_loop.run(move |event, _, control_flow| { - // You should change this if you want to render continuosly - *control_flow = ControlFlow::Wait; - - match event { - Event::WindowEvent { event, .. } => { - match event { - WindowEvent::CursorMoved { position, .. } => { - cursor_position = position; - } - WindowEvent::ModifiersChanged(new_modifiers) => { - modifiers = new_modifiers; - } - WindowEvent::Resized(new_size) => { - viewport = Viewport::with_physical_size( - Size::new(new_size.width, new_size.height), - window.scale_factor(), - ); - - resized = true; - } - WindowEvent::CloseRequested => { - *control_flow = ControlFlow::Exit; - } - _ => {} - } - - // Map window event to iced event - if let Some(event) = iced_winit::conversion::window_event( - &event, - window.scale_factor(), - modifiers, - ) { - state.queue_event(event); - } - } - Event::MainEventsCleared => { - // If there are events pending - if !state.is_queue_empty() { - // We update iced - let _ = state.update( - viewport.logical_size(), - conversion::cursor_position( - cursor_position, - viewport.scale_factor(), - ), - &mut renderer, - &mut clipboard, - &mut debug, - ); - - // and request a redraw - window.request_redraw(); - } - } - Event::RedrawRequested(_) => { - if resized { - let size = window.inner_size(); - - swap_chain = device.create_swap_chain( - &surface, - &wgpu::SwapChainDescriptor { - usage: wgpu::TextureUsage::RENDER_ATTACHMENT, - format: format, - width: size.width, - height: size.height, - present_mode: wgpu::PresentMode::Mailbox, - }, - ); - - resized = false; - } - - match swap_chain.get_current_frame() { - Ok(frame) => { - let mut encoder = device.create_command_encoder( - &wgpu::CommandEncoderDescriptor { label: None }, - ); - - let program = state.program(); - - { - // We clear the frame - let mut render_pass = scene.clear( - &frame.output.view, - &mut encoder, - program.background_color(), - ); - - // Draw the scene - scene.draw(&mut render_pass); - } - - // And then iced on top - let mouse_interaction = renderer.backend_mut().draw( - &mut device, - &mut staging_belt, - &mut encoder, - &frame.output.view, - &viewport, - state.primitive(), - &debug.overlay(), - ); - - // Then we submit the work - staging_belt.finish(); - queue.submit(Some(encoder.finish())); - - // Update the mouse cursor - window.set_cursor_icon( - iced_winit::conversion::mouse_interaction( - mouse_interaction, - ), - ); - - // And recall staging buffers - local_pool - .spawner() - .spawn(staging_belt.recall()) - .expect("Recall staging buffers"); - - local_pool.run_until_stalled(); - } - Err(error) => match error { - wgpu::SwapChainError::OutOfMemory => { - panic!("Swapchain error: {}. Rendering cannot continue.", error) - } - _ => { - // Try rendering again next frame. - window.request_redraw(); - } - }, - } - } - _ => {} - } - }) -} |