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use crate::graphics::vulkan::Device;
use anyhow::Result;
use ash::{version::DeviceV1_0, vk};
pub fn create_render_pass(
device: &Device,
format: vk::Format,
) -> Result<vk::RenderPass> {
let attachments = [vk::AttachmentDescription {
format,
samples: vk::SampleCountFlags::TYPE_1,
load_op: vk::AttachmentLoadOp::CLEAR,
store_op: vk::AttachmentStoreOp::STORE,
stencil_load_op: vk::AttachmentLoadOp::DONT_CARE,
stencil_store_op: vk::AttachmentStoreOp::DONT_CARE,
initial_layout: vk::ImageLayout::UNDEFINED,
final_layout: vk::ImageLayout::PRESENT_SRC_KHR,
..Default::default()
}];
let color_references = [vk::AttachmentReference {
attachment: 0,
layout: vk::ImageLayout::COLOR_ATTACHMENT_OPTIMAL,
}];
let subpasses = [vk::SubpassDescription {
pipeline_bind_point: vk::PipelineBindPoint::GRAPHICS,
p_color_attachments: color_references.as_ptr(),
color_attachment_count: color_references.len() as u32,
..Default::default()
}];
let dependencies = [vk::SubpassDependency {
src_subpass: vk::SUBPASS_EXTERNAL,
src_stage_mask: vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT,
src_access_mask: vk::AccessFlags::empty(),
dst_subpass: 0,
dst_stage_mask: vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT,
dst_access_mask: vk::AccessFlags::COLOR_ATTACHMENT_WRITE,
dependency_flags: vk::DependencyFlags::default(),
}];
let create_info = vk::RenderPassCreateInfo {
p_attachments: attachments.as_ptr(),
attachment_count: attachments.len() as u32,
p_subpasses: subpasses.as_ptr(),
subpass_count: subpasses.len() as u32,
p_dependencies: dependencies.as_ptr(),
dependency_count: dependencies.len() as u32,
..Default::default()
};
let render_pass = unsafe {
device
.logical_device
.create_render_pass(&create_info, None)?
};
device.name_vulkan_object(
"Application Render Pass",
vk::ObjectType::RENDER_PASS,
&render_pass,
)?;
Ok(render_pass)
}