render_plugin: Add first SubApp and default schedules

crates/engine_vulkan/src/vulkan_context.rs

@@ -0,0 +1,76 @@
+use std::{any::Any, sync::Arc};
+
+use bevy_app::App;
+use bevy_ecs::resource::Resource;
+use engine_window::raw_handle::DisplayHandleWrapper;
+use vulkano::{
+    command_buffer::{
+        AutoCommandBufferBuilder, CommandBufferUsage, PrimaryAutoCommandBuffer,
+        allocator::StandardCommandBufferAllocator,
+    },
+    descriptor_set::allocator::StandardDescriptorSetAllocator,
+    device::{Device, Queue},
+    instance::Instance,
+    memory::allocator::StandardMemoryAllocator,
+    swapchain::Surface,
+};
+use winit::raw_window_handle::{HasDisplayHandle, HasWindowHandle};
+
+use super::utils;
+
+#[derive(Resource)]
+pub struct VulkanContext {
+    pub instance: Arc<Instance>,
+    pub device: Arc<Device>,
+    pub graphics_queue: Arc<Queue>,
+
+    pub memory_allocator: Arc<StandardMemoryAllocator>,
+    pub command_buffer_allocator: Arc<StandardCommandBufferAllocator>,
+    pub descriptor_set_allocator: Arc<StandardDescriptorSetAllocator>,
+}
+
+impl VulkanContext {
+    pub fn create_surface(
+        &self,
+        window: Arc<impl HasWindowHandle + HasDisplayHandle + Any + Send + Sync>,
+    ) -> Arc<Surface> {
+        Surface::from_window(self.instance.clone(), window).unwrap()
+    }
+
+    pub fn create_render_builder(&self) -> AutoCommandBufferBuilder<PrimaryAutoCommandBuffer> {
+        AutoCommandBufferBuilder::primary(
+            self.command_buffer_allocator.clone(),
+            self.graphics_queue.queue_family_index(),
+            CommandBufferUsage::OneTimeSubmit,
+        )
+        .unwrap()
+    }
+}
+
+impl From<&App> for VulkanContext {
+    fn from(app: &App) -> Self {
+        let (device, mut queues) = utils::pick_graphics_device(&instance, &display_handle.0);
+        let graphics_queue = queues.next().unwrap();
+
+        let memory_allocator = Arc::new(StandardMemoryAllocator::new_default(device.clone()));
+
+        let command_buffer_allocator = Arc::new(StandardCommandBufferAllocator::new(
+            device.clone(),
+            Default::default(),
+        ));
+
+        let descriptor_set_allocator = Arc::new(StandardDescriptorSetAllocator::new(
+            device.clone(),
+            Default::default(),
+        ));
+
+        Self {
+            instance: instance.clone(),
+            device,
+            graphics_queue,
+            memory_allocator,
+            command_buffer_allocator,
+            descriptor_set_allocator,
+        }
+    }
+}