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use std::sync::Arc;
use vulkano::{command_buffer::{AutoCommandBufferBuilder, SubpassContents}, device::Queue, format::Format, framebuffer::Framebuffer, framebuffer::{FramebufferAbstract, RenderPassAbstract, Subpass}, image::AttachmentImage, image::ImageUsage, image::{ImageViewAbstract, SwapchainImage, view::ImageView}, sync::GpuFuture};
use feo_math::{linear_algebra::{matrix4::Matrix4}, utils::space::Space};
use winit::window::Window;
use super::{draw_pass_manager::DrawPassManager, lighting_pass_manager::LightingPassManager, pass_builder::PassBuilder};
/// System that contains the necessary facilities for rendering a single frame.
pub struct FrameSystem {
pub(crate) gfx_queue: Arc<Queue>,
render_pass: Arc<dyn RenderPassAbstract + Send + Sync>,
framebuffers: Vec<Arc<dyn FramebufferAbstract + Send + Sync>>,
pub(crate) diffuse_buffer: Arc<ImageView<Arc<AttachmentImage>>>,
pub(crate) normals_buffer: Arc<ImageView<Arc<AttachmentImage>>>,
pub(crate) ambient_buffer: Arc<ImageView<Arc<AttachmentImage>>>,
pub(crate) specular_buffer: Arc<ImageView<Arc<AttachmentImage>>>,
pub(crate) depth_buffer: Arc<ImageView<Arc<AttachmentImage>>>,
// pub(crate) light_depth_buffer: Arc<ImageView<Arc<AttachmentImage>>>,
pub(crate) lighting_pass_manager: LightingPassManager,
pub(crate) draw_pass_manager: DrawPassManager,
}
impl FrameSystem {
/// Creates and initializes a new frame system.
pub fn new(gfx_queue: Arc<Queue>, final_output_format: Format, dims: [u32; 2]) -> FrameSystem {
let render_pass = Arc::new(
vulkano::ordered_passes_renderpass!(gfx_queue.device().clone(),
attachments: {
// The final rendering
final_color: {
load: Clear,
store: Store,
format: final_output_format,
samples: 1,
},
// Will be bound to `self.normals_buffer`.
normals: {
load: Clear,
store: DontCare,
format: Format::R16G16B16A16Sfloat,
samples: 1,
},
// Will be bound to `self.diffuse_buffer`.
diffuse: {
load: Clear,
store: DontCare,
format: Format::A2B10G10R10UnormPack32,
samples: 1,
},
// ambient reflected
ambient: {
load: Clear,
store: DontCare,
format: Format::A2B10G10R10UnormPack32,
samples: 1,
},
// specular reflected
specular: {
load: Clear,
store: DontCare,
format: Format::A2B10G10R10UnormPack32,
samples: 1,
},
// Will be bound to `self.depth_buffer`.
depth: {
load: Clear,
store: DontCare,
format: Format::D16Unorm,
samples: 1,
}// ,
// // Will be bound to `self.depth_buffer`.
// light_depth: {
// load: Clear,
// store: DontCare,
// format: Format::D16Unorm,
// samples: 1,
// }
},
passes: [
// Write to the diffuse, normals and depth attachments.
{
color: [normals, diffuse, ambient, specular], // albedo
depth_stencil: {depth},
input: []
},
// // TODO: Shadows
// {
// color: [],
// depth_stencil: {light_depth},
// input: [todo]
// },
// Apply lighting by reading these three attachments and writing to `final_color`.
{
color: [final_color],
depth_stencil: {},
input: [normals, diffuse, ambient, specular, depth/*, light_depth*/]
}
]
).unwrap(),
);
let atch_usage = ImageUsage {
transient_attachment: true,
input_attachment: true,
..ImageUsage::none()
};
let depth_buffer = ImageView::new(
AttachmentImage::with_usage(
gfx_queue.device().clone(),
dims,
Format::D16Unorm,
atch_usage,
).unwrap(),
).unwrap();
// let light_depth_buffer = ImageView::new(
// AttachmentImage::with_usage(
// gfx_queue.device().clone(),
// dims,
// Format::D16Unorm,
// atch_usage,
// ).unwrap(),
// ).unwrap();
let normals_buffer = ImageView::new(
AttachmentImage::with_usage(
gfx_queue.device().clone(),
dims,
Format::R16G16B16A16Sfloat,
atch_usage,
).unwrap(),
).unwrap();
let diffuse_buffer = ImageView::new(
AttachmentImage::with_usage(
gfx_queue.device().clone(),
dims,
Format::A2B10G10R10UnormPack32,
atch_usage,
).unwrap(),
).unwrap();
let ambient_buffer = ImageView::new(
AttachmentImage::with_usage(
gfx_queue.device().clone(),
dims,
Format::A2B10G10R10UnormPack32,
atch_usage,
).unwrap(),
).unwrap();
let specular_buffer = ImageView::new(
AttachmentImage::with_usage(
gfx_queue.device().clone(),
dims,
Format::A2B10G10R10UnormPack32,
atch_usage,
).unwrap(),
).unwrap();
// TODO: Shadows
// let shadow_subpass = Subpass::from(render_pass.clone(), 1).unwrap();
// let shadow_system = AmbientLightingSystem::new(gfx_queue.clone(), lighting_subpass.clone());
// let shadow_system = AmbientLightingSystem::new(gfx_queue.clone(), lighting_subpass.clone());
let draw_pass_manager = DrawPassManager::new(gfx_queue.clone(), Subpass::from(render_pass.clone(), 0).unwrap(), dims);
let lighting_pass_manager = LightingPassManager::new(gfx_queue.clone(), Subpass::from(render_pass.clone(), 1).unwrap());
FrameSystem {
gfx_queue,
render_pass: render_pass as Arc<_>,
framebuffers: Vec::new(),
diffuse_buffer,
ambient_buffer,
specular_buffer,
normals_buffer,
depth_buffer,
// light_depth_buffer, // TODO
lighting_pass_manager,
draw_pass_manager,
}
}
// Builds a passbuilder for a pass
pub fn pass_builder<F>(
&mut self,
before_future: F,
img_num: usize,
screen_to_camera: Matrix4<f32>,
to_camera_space: Space) -> PassBuilder
where F: GpuFuture + 'static {
let framebuffer = self.framebuffers[img_num].clone();
// Start the command buffer builder that will be filled throughout the frame handling.
let mut command_buffer_builder = AutoCommandBufferBuilder::primary_one_time_submit(
self.gfx_queue.device().clone(),
self.gfx_queue.family(),
).unwrap();
command_buffer_builder.begin_render_pass(
framebuffer.clone(),
SubpassContents::SecondaryCommandBuffers,
vec![
[0.0, 0.0, 0.0, 0.0].into(),
[0.0, 0.0, 0.0, 0.0].into(),
[0.0, 0.0, 0.0, 0.0].into(),
[0.0, 0.0, 0.0, 0.0].into(),
[0.0, 0.0, 0.0, 0.0].into(),
1.0_f32.into(),
],
).unwrap();
PassBuilder {
system: self,
before_main_cb_future: Some(Box::new(before_future)),
framebuffer,
command_buffer_builder: Some(command_buffer_builder),
screen_to_camera,
to_camera_space
}
}
// Rebuilds the FrameSystem with the required dimentions
pub fn rebuild_dims(&mut self, images: &[Arc<ImageView<Arc<SwapchainImage<Window>>>>]){
let dimensions = &images[0].clone().image().dimensions().width_height();
self.draw_pass_manager.rebuild(dimensions, self.render_pass.clone());
let atch_usage = ImageUsage {
transient_attachment: true,
input_attachment: true,
..ImageUsage::none()
};
self.depth_buffer = ImageView::new(
AttachmentImage::with_usage(
self.gfx_queue.device().clone(),
*dimensions,
Format::D16Unorm,
atch_usage,
).unwrap(),
).unwrap();
self.normals_buffer = ImageView::new(
AttachmentImage::with_usage(
self.gfx_queue.device().clone(),
*dimensions,
Format::R16G16B16A16Sfloat,
atch_usage,
).unwrap(),
).unwrap();
self.diffuse_buffer = ImageView::new(
AttachmentImage::with_usage(
self.gfx_queue.device().clone(),
*dimensions,
Format::A2B10G10R10UnormPack32,
atch_usage,
).unwrap(),
).unwrap();
self.ambient_buffer = ImageView::new(
AttachmentImage::with_usage(
self.gfx_queue.device().clone(),
*dimensions,
Format::A2B10G10R10UnormPack32,
atch_usage,
).unwrap(),
).unwrap();
self.specular_buffer = ImageView::new(
AttachmentImage::with_usage(
self.gfx_queue.device().clone(),
*dimensions,
Format::A2B10G10R10UnormPack32,
atch_usage,
).unwrap(),
).unwrap();
self.framebuffers = images.iter()
.map(|image|
Arc::new(
Framebuffer::start(self.render_pass.clone())
.add(image.clone()).unwrap()
.add(self.normals_buffer.clone()).unwrap()
.add(self.diffuse_buffer.clone()).unwrap()
.add(self.ambient_buffer.clone()).unwrap()
.add(self.specular_buffer.clone()).unwrap()
.add(self.depth_buffer.clone()).unwrap()
.build().unwrap(),
) as Arc<dyn FramebufferAbstract + Send + Sync>
).collect::<Vec<_>>();
}
}