mirror of
https://github.com/vulkano-rs/vulkano.git
synced 2024-11-21 22:34:43 +00:00
666 lines
23 KiB
Rust
666 lines
23 KiB
Rust
use std::{error::Error, sync::Arc};
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use vulkano::{
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buffer::{Buffer, BufferContents, BufferCreateInfo, BufferUsage, Subbuffer},
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command_buffer::{
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allocator::StandardCommandBufferAllocator, AutoCommandBufferBuilder, BlitImageInfo,
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BufferImageCopy, ClearColorImageInfo, CommandBufferUsage, CopyBufferToImageInfo,
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CopyImageInfo, ImageBlit, ImageCopy, RenderPassBeginInfo,
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},
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descriptor_set::{
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allocator::StandardDescriptorSetAllocator, DescriptorSet, WriteDescriptorSet,
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},
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device::{
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physical::PhysicalDeviceType, Device, DeviceCreateInfo, DeviceExtensions, Queue,
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QueueCreateInfo, QueueFlags,
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},
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format::Format,
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image::{
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sampler::{Filter, Sampler, SamplerAddressMode, SamplerCreateInfo},
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view::ImageView,
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Image, ImageCreateInfo, ImageLayout, ImageUsage,
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},
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instance::{Instance, InstanceCreateFlags, InstanceCreateInfo},
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memory::allocator::{AllocationCreateInfo, MemoryTypeFilter, StandardMemoryAllocator},
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pipeline::{
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graphics::{
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color_blend::{AttachmentBlend, ColorBlendAttachmentState, ColorBlendState},
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input_assembly::{InputAssemblyState, PrimitiveTopology},
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multisample::MultisampleState,
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rasterization::RasterizationState,
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vertex_input::{Vertex, VertexDefinition},
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viewport::{Viewport, ViewportState},
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GraphicsPipelineCreateInfo,
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},
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layout::PipelineDescriptorSetLayoutCreateInfo,
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DynamicState, GraphicsPipeline, Pipeline, PipelineBindPoint, PipelineLayout,
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PipelineShaderStageCreateInfo,
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},
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render_pass::{Framebuffer, FramebufferCreateInfo, RenderPass, Subpass},
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swapchain::{
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acquire_next_image, Surface, Swapchain, SwapchainCreateInfo, SwapchainPresentInfo,
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},
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sync::{self, GpuFuture},
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DeviceSize, Validated, VulkanError, VulkanLibrary,
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};
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use winit::{
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application::ApplicationHandler,
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event::WindowEvent,
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event_loop::{ActiveEventLoop, EventLoop},
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window::{Window, WindowId},
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};
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fn main() -> Result<(), impl Error> {
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// The start of this example is exactly the same as `triangle`. You should read the `triangle`
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// example if you haven't done so yet.
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let event_loop = EventLoop::new().unwrap();
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let mut app = App::new(&event_loop);
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event_loop.run_app(&mut app)
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}
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struct App {
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instance: Arc<Instance>,
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device: Arc<Device>,
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queue: Arc<Queue>,
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descriptor_set_allocator: Arc<StandardDescriptorSetAllocator>,
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command_buffer_allocator: Arc<StandardCommandBufferAllocator>,
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vertex_buffer: Subbuffer<[MyVertex]>,
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texture: Arc<ImageView>,
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sampler: Arc<Sampler>,
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rcx: Option<RenderContext>,
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}
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struct RenderContext {
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window: Arc<Window>,
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swapchain: Arc<Swapchain>,
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render_pass: Arc<RenderPass>,
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framebuffers: Vec<Arc<Framebuffer>>,
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pipeline: Arc<GraphicsPipeline>,
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viewport: Viewport,
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descriptor_set: Arc<DescriptorSet>,
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recreate_swapchain: bool,
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previous_frame_end: Option<Box<dyn GpuFuture>>,
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}
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impl App {
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fn new(event_loop: &EventLoop<()>) -> Self {
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let library = VulkanLibrary::new().unwrap();
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let required_extensions = Surface::required_extensions(event_loop).unwrap();
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let instance = Instance::new(
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library,
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InstanceCreateInfo {
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flags: InstanceCreateFlags::ENUMERATE_PORTABILITY,
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enabled_extensions: required_extensions,
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..Default::default()
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},
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)
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.unwrap();
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let device_extensions = DeviceExtensions {
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khr_swapchain: true,
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..DeviceExtensions::empty()
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};
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let (physical_device, queue_family_index) = instance
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.enumerate_physical_devices()
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.unwrap()
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.filter(|p| p.supported_extensions().contains(&device_extensions))
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.filter_map(|p| {
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p.queue_family_properties()
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.iter()
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.enumerate()
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.position(|(i, q)| {
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q.queue_flags.intersects(QueueFlags::GRAPHICS)
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&& p.presentation_support(i as u32, event_loop).unwrap()
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})
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.map(|i| (p, i as u32))
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})
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.min_by_key(|(p, _)| match p.properties().device_type {
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PhysicalDeviceType::DiscreteGpu => 0,
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PhysicalDeviceType::IntegratedGpu => 1,
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PhysicalDeviceType::VirtualGpu => 2,
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PhysicalDeviceType::Cpu => 3,
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PhysicalDeviceType::Other => 4,
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_ => 5,
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})
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.unwrap();
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println!(
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"Using device: {} (type: {:?})",
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physical_device.properties().device_name,
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physical_device.properties().device_type,
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);
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let (device, mut queues) = Device::new(
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physical_device,
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DeviceCreateInfo {
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enabled_extensions: device_extensions,
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queue_create_infos: vec![QueueCreateInfo {
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queue_family_index,
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..Default::default()
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}],
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..Default::default()
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},
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)
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.unwrap();
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let queue = queues.next().unwrap();
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let memory_allocator = Arc::new(StandardMemoryAllocator::new_default(device.clone()));
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let descriptor_set_allocator = Arc::new(StandardDescriptorSetAllocator::new(
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device.clone(),
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Default::default(),
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));
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let command_buffer_allocator = Arc::new(StandardCommandBufferAllocator::new(
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device.clone(),
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Default::default(),
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));
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let vertices = [
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MyVertex {
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position: [-0.5, -0.5],
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},
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MyVertex {
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position: [-0.5, 0.5],
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},
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MyVertex {
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position: [0.5, -0.5],
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},
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MyVertex {
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position: [0.5, 0.5],
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},
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];
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let vertex_buffer = Buffer::from_iter(
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memory_allocator.clone(),
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BufferCreateInfo {
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usage: BufferUsage::VERTEX_BUFFER,
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..Default::default()
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},
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AllocationCreateInfo {
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memory_type_filter: MemoryTypeFilter::PREFER_DEVICE
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| MemoryTypeFilter::HOST_SEQUENTIAL_WRITE,
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..Default::default()
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},
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vertices,
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)
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.unwrap();
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let mut uploads = AutoCommandBufferBuilder::primary(
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command_buffer_allocator.clone(),
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queue.queue_family_index(),
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CommandBufferUsage::OneTimeSubmit,
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)
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.unwrap();
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let texture = {
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let png_bytes = include_bytes!("image_img.png").as_slice();
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let decoder = png::Decoder::new(png_bytes);
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let mut reader = decoder.read_info().unwrap();
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let info = reader.info();
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let img_size = [info.width, info.height];
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let extent = [info.width * 2, info.height * 2, 1];
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let upload_buffer = Buffer::new_slice(
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memory_allocator.clone(),
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BufferCreateInfo {
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usage: BufferUsage::TRANSFER_SRC,
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..Default::default()
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},
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AllocationCreateInfo {
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memory_type_filter: MemoryTypeFilter::PREFER_HOST
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| MemoryTypeFilter::HOST_SEQUENTIAL_WRITE,
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..Default::default()
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},
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(info.width * info.height * 4) as DeviceSize,
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)
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.unwrap();
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reader
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.next_frame(&mut upload_buffer.write().unwrap())
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.unwrap();
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let image = Image::new(
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memory_allocator,
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ImageCreateInfo {
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format: Format::R8G8B8A8_UNORM,
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extent,
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usage: ImageUsage::TRANSFER_SRC
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| ImageUsage::TRANSFER_DST
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| ImageUsage::SAMPLED,
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..Default::default()
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},
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AllocationCreateInfo::default(),
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)
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.unwrap();
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// Here, we perform image copying and blitting on the same image.
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uploads
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// Clear the image buffer.
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.clear_color_image(ClearColorImageInfo::image(image.clone()))
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.unwrap()
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// Put our image in the top left corner.
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.copy_buffer_to_image(CopyBufferToImageInfo {
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regions: [BufferImageCopy {
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image_subresource: image.subresource_layers(),
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image_extent: [img_size[0], img_size[1], 1],
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..Default::default()
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}]
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.into(),
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..CopyBufferToImageInfo::buffer_image(upload_buffer, image.clone())
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})
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.unwrap()
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// Copy from the top left corner to the bottom right corner.
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.copy_image(CopyImageInfo {
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// Copying within the same image requires the General layout if the source and
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// destination subresources overlap.
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src_image_layout: ImageLayout::General,
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dst_image_layout: ImageLayout::General,
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regions: [ImageCopy {
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src_subresource: image.subresource_layers(),
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src_offset: [0, 0, 0],
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dst_subresource: image.subresource_layers(),
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dst_offset: [img_size[0], img_size[1], 0],
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extent: [img_size[0], img_size[1], 1],
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..Default::default()
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}]
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.into(),
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..CopyImageInfo::images(image.clone(), image.clone())
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})
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.unwrap()
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// Blit from the bottom right corner to the top right corner (flipped).
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.blit_image(BlitImageInfo {
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// Same as above applies for blitting.
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src_image_layout: ImageLayout::General,
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dst_image_layout: ImageLayout::General,
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regions: [ImageBlit {
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src_subresource: image.subresource_layers(),
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src_offsets: [
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[img_size[0], img_size[1], 0],
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[img_size[0] * 2, img_size[1] * 2, 1],
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],
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dst_subresource: image.subresource_layers(),
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// Swapping the two corners results in flipped image.
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dst_offsets: [
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[img_size[0] * 2 - 1, img_size[1] - 1, 0],
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[img_size[0], 0, 1],
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],
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..Default::default()
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}]
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.into(),
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filter: Filter::Nearest,
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..BlitImageInfo::images(image.clone(), image.clone())
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})
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.unwrap();
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ImageView::new_default(image).unwrap()
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};
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let sampler = Sampler::new(
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device.clone(),
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SamplerCreateInfo {
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mag_filter: Filter::Linear,
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min_filter: Filter::Linear,
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address_mode: [SamplerAddressMode::Repeat; 3],
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..Default::default()
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},
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)
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.unwrap();
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let _ = uploads.build().unwrap().execute(queue.clone()).unwrap();
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App {
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instance,
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device,
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queue,
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descriptor_set_allocator,
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command_buffer_allocator,
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vertex_buffer,
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texture,
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sampler,
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rcx: None,
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}
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}
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}
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impl ApplicationHandler for App {
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fn resumed(&mut self, event_loop: &ActiveEventLoop) {
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let window = Arc::new(
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event_loop
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.create_window(Window::default_attributes())
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.unwrap(),
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);
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let surface = Surface::from_window(self.instance.clone(), window.clone()).unwrap();
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let window_size = window.inner_size();
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let (swapchain, images) = {
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let surface_capabilities = self
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.device
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.physical_device()
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.surface_capabilities(&surface, Default::default())
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.unwrap();
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let (image_format, _) = self
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.device
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.physical_device()
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.surface_formats(&surface, Default::default())
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.unwrap()[0];
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Swapchain::new(
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self.device.clone(),
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surface,
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SwapchainCreateInfo {
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min_image_count: surface_capabilities.min_image_count.max(2),
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image_format,
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image_extent: window_size.into(),
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image_usage: ImageUsage::COLOR_ATTACHMENT,
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composite_alpha: surface_capabilities
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.supported_composite_alpha
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.into_iter()
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.next()
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.unwrap(),
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..Default::default()
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},
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)
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.unwrap()
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};
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let render_pass = vulkano::single_pass_renderpass!(
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self.device.clone(),
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attachments: {
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color: {
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format: swapchain.image_format(),
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samples: 1,
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load_op: Clear,
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store_op: Store,
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},
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},
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pass: {
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color: [color],
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depth_stencil: {},
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},
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)
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.unwrap();
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let framebuffers = window_size_dependent_setup(&images, &render_pass);
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let pipeline = {
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let vs = vs::load(self.device.clone())
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.unwrap()
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.entry_point("main")
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.unwrap();
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let fs = fs::load(self.device.clone())
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.unwrap()
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.entry_point("main")
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.unwrap();
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let vertex_input_state = MyVertex::per_vertex().definition(&vs).unwrap();
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let stages = [
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PipelineShaderStageCreateInfo::new(vs),
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PipelineShaderStageCreateInfo::new(fs),
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];
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let layout = PipelineLayout::new(
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self.device.clone(),
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PipelineDescriptorSetLayoutCreateInfo::from_stages(&stages)
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.into_pipeline_layout_create_info(self.device.clone())
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.unwrap(),
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)
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.unwrap();
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let subpass = Subpass::from(render_pass.clone(), 0).unwrap();
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GraphicsPipeline::new(
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self.device.clone(),
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None,
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GraphicsPipelineCreateInfo {
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stages: stages.into_iter().collect(),
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vertex_input_state: Some(vertex_input_state),
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input_assembly_state: Some(InputAssemblyState {
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topology: PrimitiveTopology::TriangleStrip,
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..Default::default()
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}),
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viewport_state: Some(ViewportState::default()),
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rasterization_state: Some(RasterizationState::default()),
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multisample_state: Some(MultisampleState::default()),
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color_blend_state: Some(ColorBlendState::with_attachment_states(
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subpass.num_color_attachments(),
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ColorBlendAttachmentState {
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blend: Some(AttachmentBlend::alpha()),
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..Default::default()
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},
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)),
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dynamic_state: [DynamicState::Viewport].into_iter().collect(),
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subpass: Some(subpass.into()),
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..GraphicsPipelineCreateInfo::layout(layout)
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},
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)
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.unwrap()
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};
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let viewport = Viewport {
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offset: [0.0, 0.0],
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extent: window_size.into(),
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depth_range: 0.0..=1.0,
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};
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let layout = &pipeline.layout().set_layouts()[0];
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let descriptor_set = DescriptorSet::new(
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self.descriptor_set_allocator.clone(),
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layout.clone(),
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[
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WriteDescriptorSet::sampler(0, self.sampler.clone()),
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WriteDescriptorSet::image_view(1, self.texture.clone()),
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],
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[],
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)
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.unwrap();
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let previous_frame_end = Some(sync::now(self.device.clone()).boxed());
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self.rcx = Some(RenderContext {
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window,
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swapchain,
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render_pass,
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framebuffers,
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pipeline,
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viewport,
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descriptor_set,
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recreate_swapchain: false,
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previous_frame_end,
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});
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}
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fn window_event(
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&mut self,
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event_loop: &ActiveEventLoop,
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_window_id: WindowId,
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event: WindowEvent,
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) {
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let rcx = self.rcx.as_mut().unwrap();
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match event {
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WindowEvent::CloseRequested => {
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event_loop.exit();
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}
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WindowEvent::Resized(_) => {
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rcx.recreate_swapchain = true;
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}
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WindowEvent::RedrawRequested => {
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let window_size = rcx.window.inner_size();
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if window_size.width == 0 || window_size.height == 0 {
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return;
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}
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rcx.previous_frame_end.as_mut().unwrap().cleanup_finished();
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if rcx.recreate_swapchain {
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let (new_swapchain, new_images) = rcx
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.swapchain
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.recreate(SwapchainCreateInfo {
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image_extent: window_size.into(),
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..rcx.swapchain.create_info()
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})
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.expect("failed to recreate swapchain");
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rcx.swapchain = new_swapchain;
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rcx.framebuffers = window_size_dependent_setup(&new_images, &rcx.render_pass);
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rcx.viewport.extent = window_size.into();
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rcx.recreate_swapchain = false;
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}
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let (image_index, suboptimal, acquire_future) = match acquire_next_image(
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rcx.swapchain.clone(),
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None,
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)
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.map_err(Validated::unwrap)
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{
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Ok(r) => r,
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Err(VulkanError::OutOfDate) => {
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rcx.recreate_swapchain = true;
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return;
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}
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Err(e) => panic!("failed to acquire next image: {e}"),
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};
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if suboptimal {
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rcx.recreate_swapchain = true;
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}
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|
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let mut builder = AutoCommandBufferBuilder::primary(
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self.command_buffer_allocator.clone(),
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self.queue.queue_family_index(),
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CommandBufferUsage::OneTimeSubmit,
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)
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.unwrap();
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builder
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.begin_render_pass(
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RenderPassBeginInfo {
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clear_values: vec![Some([0.0, 0.0, 1.0, 1.0].into())],
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..RenderPassBeginInfo::framebuffer(
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rcx.framebuffers[image_index as usize].clone(),
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)
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},
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Default::default(),
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)
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.unwrap()
|
|
.set_viewport(0, [rcx.viewport.clone()].into_iter().collect())
|
|
.unwrap()
|
|
.bind_pipeline_graphics(rcx.pipeline.clone())
|
|
.unwrap()
|
|
.bind_descriptor_sets(
|
|
PipelineBindPoint::Graphics,
|
|
rcx.pipeline.layout().clone(),
|
|
0,
|
|
rcx.descriptor_set.clone(),
|
|
)
|
|
.unwrap()
|
|
.bind_vertex_buffers(0, self.vertex_buffer.clone())
|
|
.unwrap();
|
|
unsafe { builder.draw(self.vertex_buffer.len() as u32, 1, 0, 0) }.unwrap();
|
|
|
|
builder.end_render_pass(Default::default()).unwrap();
|
|
|
|
let command_buffer = builder.build().unwrap();
|
|
let future = rcx
|
|
.previous_frame_end
|
|
.take()
|
|
.unwrap()
|
|
.join(acquire_future)
|
|
.then_execute(self.queue.clone(), command_buffer)
|
|
.unwrap()
|
|
.then_swapchain_present(
|
|
self.queue.clone(),
|
|
SwapchainPresentInfo::swapchain_image_index(
|
|
rcx.swapchain.clone(),
|
|
image_index,
|
|
),
|
|
)
|
|
.then_signal_fence_and_flush();
|
|
|
|
match future.map_err(Validated::unwrap) {
|
|
Ok(future) => {
|
|
rcx.previous_frame_end = Some(future.boxed());
|
|
}
|
|
Err(VulkanError::OutOfDate) => {
|
|
rcx.recreate_swapchain = true;
|
|
rcx.previous_frame_end = Some(sync::now(self.device.clone()).boxed());
|
|
}
|
|
Err(e) => {
|
|
println!("failed to flush future: {e}");
|
|
rcx.previous_frame_end = Some(sync::now(self.device.clone()).boxed());
|
|
}
|
|
}
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
|
|
fn about_to_wait(&mut self, _event_loop: &ActiveEventLoop) {
|
|
let rcx = self.rcx.as_mut().unwrap();
|
|
rcx.window.request_redraw();
|
|
}
|
|
}
|
|
|
|
#[derive(BufferContents, Vertex)]
|
|
#[repr(C)]
|
|
struct MyVertex {
|
|
#[format(R32G32_SFLOAT)]
|
|
position: [f32; 2],
|
|
}
|
|
|
|
/// This function is called once during initialization, then again whenever the window is resized.
|
|
fn window_size_dependent_setup(
|
|
images: &[Arc<Image>],
|
|
render_pass: &Arc<RenderPass>,
|
|
) -> Vec<Arc<Framebuffer>> {
|
|
images
|
|
.iter()
|
|
.map(|image| {
|
|
let view = ImageView::new_default(image.clone()).unwrap();
|
|
|
|
Framebuffer::new(
|
|
render_pass.clone(),
|
|
FramebufferCreateInfo {
|
|
attachments: vec![view],
|
|
..Default::default()
|
|
},
|
|
)
|
|
.unwrap()
|
|
})
|
|
.collect::<Vec<_>>()
|
|
}
|
|
|
|
mod vs {
|
|
vulkano_shaders::shader! {
|
|
ty: "vertex",
|
|
src: r"
|
|
#version 450
|
|
|
|
layout(location = 0) in vec2 position;
|
|
layout(location = 0) out vec2 tex_coords;
|
|
|
|
void main() {
|
|
gl_Position = vec4(position, 0.0, 1.0);
|
|
tex_coords = position + vec2(0.5);
|
|
}
|
|
",
|
|
}
|
|
}
|
|
|
|
mod fs {
|
|
vulkano_shaders::shader! {
|
|
ty: "fragment",
|
|
src: r"
|
|
#version 450
|
|
|
|
layout(location = 0) in vec2 tex_coords;
|
|
layout(location = 0) out vec4 f_color;
|
|
|
|
layout(set = 0, binding = 0) uniform sampler s;
|
|
layout(set = 0, binding = 1) uniform texture2D tex;
|
|
|
|
void main() {
|
|
f_color = texture(sampler2D(tex, s), tex_coords);
|
|
}
|
|
",
|
|
}
|
|
}
|