49 lines
1.7 KiB
Rust
49 lines
1.7 KiB
Rust
use crate::error;
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use ash::vk;
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use ash::vk::{
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AttachmentLoadOp, AttachmentStoreOp, ImageLayout, PipelineBindPoint, SampleCountFlags,
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};
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pub struct VulkanRenderPass {
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pub handle: vk::RenderPass,
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pub format: vk::Format,
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}
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impl VulkanRenderPass {
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pub fn create_render_pass(device: &ash::Device, format: vk::Format) -> error::Result<Self> {
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// format should never be undefined.
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let attachment = [vk::AttachmentDescription::builder()
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.flags(vk::AttachmentDescriptionFlags::empty())
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.format(format)
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.samples(SampleCountFlags::TYPE_1)
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.load_op(AttachmentLoadOp::DONT_CARE)
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.store_op(AttachmentStoreOp::STORE)
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.stencil_load_op(AttachmentLoadOp::DONT_CARE)
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.stencil_store_op(AttachmentStoreOp::DONT_CARE)
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.initial_layout(ImageLayout::COLOR_ATTACHMENT_OPTIMAL)
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.final_layout(ImageLayout::COLOR_ATTACHMENT_OPTIMAL)
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.build()];
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let attachment_ref = [vk::AttachmentReference::builder()
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.attachment(0)
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.layout(ImageLayout::COLOR_ATTACHMENT_OPTIMAL)
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.build()];
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let subpass = [vk::SubpassDescription::builder()
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.pipeline_bind_point(PipelineBindPoint::GRAPHICS)
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.color_attachments(&attachment_ref)
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.build()];
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let renderpass_info = vk::RenderPassCreateInfo::builder()
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.flags(vk::RenderPassCreateFlags::empty())
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.attachments(&attachment)
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.subpasses(&subpass)
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.build();
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unsafe {
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let rp = device.create_render_pass(&renderpass_info, None)?;
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Ok(Self { handle: rp, format })
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}
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}
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}
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