mirror of
https://github.com/vulkano-rs/vulkano.git
synced 2024-11-22 14:56:42 +00:00
43e2db0dbd
* Make `CommandBufferAllocator` object-safe, remove the generics * Fix tests * Fix examples * Remove the panic * Remove outdated docs * Document `Send + Sync` impl of `UnsafeCommandBuffer`
567 lines
19 KiB
Rust
567 lines
19 KiB
Rust
// An immutable sampler is a sampler that is integrated into the descriptor set layout (and thus
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// pipeline layout), instead of being written to an individual descriptor set. Consequently, all
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// descriptor sets with this layout will share the same sampler.
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//
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// This example is almost identical to the image example, but with two differences, which have
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// been commented:
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// - The sampler is added to the descriptor set layout at pipeline creation.
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// - No sampler is included when building a descriptor set.
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use std::{error::Error, sync::Arc};
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use vulkano::{
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buffer::{Buffer, BufferContents, BufferCreateInfo, BufferUsage},
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command_buffer::{
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allocator::StandardCommandBufferAllocator, AutoCommandBufferBuilder, CommandBufferUsage,
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CopyBufferToImageInfo, PrimaryCommandBufferAbstract, 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, QueueCreateInfo,
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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, ImageType, 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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event::{Event, WindowEvent},
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event_loop::{ControlFlow, EventLoop},
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window::WindowBuilder,
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};
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fn main() -> Result<(), impl Error> {
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let event_loop = EventLoop::new().unwrap();
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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 window = Arc::new(WindowBuilder::new().build(&event_loop).unwrap());
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let surface = Surface::from_window(instance.clone(), window.clone()).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.surface_support(i as u32, &surface).unwrap_or(false)
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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 (mut swapchain, images) = {
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let surface_capabilities = 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 = 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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.0;
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Swapchain::new(
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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.inner_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 memory_allocator = Arc::new(StandardMemoryAllocator::new_default(device.clone()));
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#[derive(BufferContents, Vertex)]
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#[repr(C)]
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struct Vertex {
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#[format(R32G32_SFLOAT)]
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position: [f32; 2],
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}
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let vertices = [
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Vertex {
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position: [-0.5, -0.5],
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},
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Vertex {
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position: [-0.5, 0.5],
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},
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Vertex {
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position: [0.5, -0.5],
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},
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Vertex {
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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 render_pass = vulkano::single_pass_renderpass!(
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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 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 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 extent = [info.width, info.height, 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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image_type: ImageType::Dim2d,
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format: Format::R8G8B8A8_SRGB,
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extent,
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usage: ImageUsage::TRANSFER_DST | 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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uploads
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.copy_buffer_to_image(CopyBufferToImageInfo::buffer_image(
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upload_buffer,
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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 pipeline = {
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let vs = vs::load(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(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 = Vertex::per_vertex()
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.definition(&vs.info().input_interface)
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.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 = {
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let mut layout_create_info =
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PipelineDescriptorSetLayoutCreateInfo::from_stages(&stages);
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// Modify the auto-generated layout by setting an immutable sampler to set 0 binding 0.
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layout_create_info.set_layouts[0]
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.bindings
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.get_mut(&0)
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.unwrap()
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.immutable_samplers = vec![sampler];
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PipelineLayout::new(
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device.clone(),
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layout_create_info
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.into_pipeline_layout_create_info(device.clone())
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.unwrap(),
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)
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.unwrap()
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};
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let subpass = Subpass::from(render_pass.clone(), 0).unwrap();
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GraphicsPipeline::new(
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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 layout = pipeline.layout().set_layouts().get(0).unwrap();
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// Use `image_view` instead of `image_view_sampler`, since the sampler is already in the
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// layout.
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let set = DescriptorSet::new(
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descriptor_set_allocator,
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layout.clone(),
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[WriteDescriptorSet::image_view(1, texture)],
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[],
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)
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.unwrap();
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let mut viewport = Viewport {
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offset: [0.0, 0.0],
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extent: [0.0, 0.0],
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depth_range: 0.0..=1.0,
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};
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let mut framebuffers = window_size_dependent_setup(&images, render_pass.clone(), &mut viewport);
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let mut recreate_swapchain = false;
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let mut previous_frame_end = Some(
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uploads
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.build()
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.unwrap()
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.execute(queue.clone())
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.unwrap()
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.boxed(),
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);
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event_loop.run(move |event, elwt| {
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elwt.set_control_flow(ControlFlow::Poll);
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match event {
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Event::WindowEvent {
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event: WindowEvent::CloseRequested,
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..
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} => {
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elwt.exit();
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}
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Event::WindowEvent {
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event: WindowEvent::Resized(_),
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..
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} => {
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recreate_swapchain = true;
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}
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Event::WindowEvent {
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event: WindowEvent::RedrawRequested,
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..
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} => {
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let image_extent: [u32; 2] = window.inner_size().into();
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if image_extent.contains(&0) {
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return;
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}
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previous_frame_end.as_mut().unwrap().cleanup_finished();
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if recreate_swapchain {
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let (new_swapchain, new_images) = swapchain
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.recreate(SwapchainCreateInfo {
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image_extent,
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..swapchain.create_info()
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})
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.expect("failed to recreate swapchain");
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swapchain = new_swapchain;
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framebuffers = window_size_dependent_setup(
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&new_images,
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render_pass.clone(),
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&mut viewport,
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);
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recreate_swapchain = false;
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}
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let (image_index, suboptimal, acquire_future) =
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match acquire_next_image(swapchain.clone(), None).map_err(Validated::unwrap) {
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Ok(r) => r,
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Err(VulkanError::OutOfDate) => {
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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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recreate_swapchain = true;
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}
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let mut builder = 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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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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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()
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.set_viewport(0, [viewport.clone()].into_iter().collect())
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.unwrap()
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.bind_pipeline_graphics(pipeline.clone())
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.unwrap()
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.bind_descriptor_sets(
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PipelineBindPoint::Graphics,
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pipeline.layout().clone(),
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0,
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set.clone(),
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)
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.unwrap()
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.bind_vertex_buffers(0, vertex_buffer.clone())
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.unwrap()
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.draw(vertex_buffer.len() as u32, 1, 0, 0)
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.unwrap()
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.end_render_pass(Default::default())
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.unwrap();
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let command_buffer = builder.build().unwrap();
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let future = previous_frame_end
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.take()
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.unwrap()
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.join(acquire_future)
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.then_execute(queue.clone(), command_buffer)
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.unwrap()
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.then_swapchain_present(
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queue.clone(),
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SwapchainPresentInfo::swapchain_image_index(swapchain.clone(), image_index),
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)
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.then_signal_fence_and_flush();
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match future.map_err(Validated::unwrap) {
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Ok(future) => {
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previous_frame_end = Some(future.boxed());
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}
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Err(VulkanError::OutOfDate) => {
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recreate_swapchain = true;
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previous_frame_end = Some(sync::now(device.clone()).boxed());
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}
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Err(e) => {
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println!("failed to flush future: {e}");
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previous_frame_end = Some(sync::now(device.clone()).boxed());
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}
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}
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}
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Event::AboutToWait => window.request_redraw(),
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_ => (),
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}
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})
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}
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|
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/// This function is called once during initialization, then again whenever the window is resized.
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fn window_size_dependent_setup(
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images: &[Arc<Image>],
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render_pass: Arc<RenderPass>,
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viewport: &mut Viewport,
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) -> Vec<Arc<Framebuffer>> {
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let extent = images[0].extent();
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viewport.extent = [extent[0] as f32, extent[1] as f32];
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|
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images
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.iter()
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.map(|image| {
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let view = ImageView::new_default(image.clone()).unwrap();
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Framebuffer::new(
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render_pass.clone(),
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FramebufferCreateInfo {
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attachments: vec![view],
|
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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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.collect::<Vec<_>>()
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}
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mod vs {
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vulkano_shaders::shader! {
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ty: "vertex",
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src: r"
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|
#version 450
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|
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layout(location = 0) in vec2 position;
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layout(location = 0) out vec2 tex_coords;
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|
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void main() {
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gl_Position = vec4(position, 0.0, 1.0);
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tex_coords = position + vec2(0.5);
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}
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",
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}
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}
|
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|
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mod fs {
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vulkano_shaders::shader! {
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ty: "fragment",
|
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src: r"
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#version 450
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layout(location = 0) in vec2 tex_coords;
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layout(location = 0) out vec4 f_color;
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layout(set = 0, binding = 0) uniform sampler s;
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layout(set = 0, binding = 1) uniform texture2D tex;
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void main() {
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f_color = texture(sampler2D(tex, s), tex_coords);
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}
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",
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}
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}
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