82 lines
3.3 KiB
C++
82 lines
3.3 KiB
C++
#include <Renderer/RenderPass.hpp>
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RenderPass::RenderPass(vk::Device dev, vk::Format image_format, vk::Format depth_format) {
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/* transform color image from UNDEFINED format to presentable one for rendering */
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auto color_attach_desc = vk::AttachmentDescription {
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.format = image_format,
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.samples = vk::SampleCountFlagBits::e1,
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/* since its set to clear, it clears the initial image to the specified
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clear color instead of loading the data */
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.loadOp = vk::AttachmentLoadOp::eClear,
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/* we care about the data after the end of the renderpass, so store */
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.storeOp = vk::AttachmentStoreOp::eStore,
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/* for the depth stencil buffer, we care about neither */
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.stencilLoadOp = vk::AttachmentLoadOp::eDontCare,
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.stencilStoreOp = vk::AttachmentStoreOp::eDontCare,
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.initialLayout = vk::ImageLayout::eUndefined,
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.finalLayout = vk::ImageLayout::ePresentSrcKHR,
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};
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auto color_attach_ref = vk::AttachmentReference { .attachment = 0, .layout = vk::ImageLayout::eColorAttachmentOptimal };
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auto depth_attach_desc = vk::AttachmentDescription{
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.format = depth_format,
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.samples = vk::SampleCountFlagBits::e1,
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.loadOp = vk::AttachmentLoadOp::eClear,
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.storeOp = vk::AttachmentStoreOp::eDontCare,
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.stencilLoadOp = vk::AttachmentLoadOp::eClear,
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.stencilStoreOp = vk::AttachmentStoreOp::eDontCare,
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.initialLayout = vk::ImageLayout::eUndefined,
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.finalLayout = vk::ImageLayout::eDepthStencilAttachmentOptimal,
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};
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auto depth_attach_ref = vk::AttachmentReference{ .attachment = 1, .layout = vk::ImageLayout::eDepthStencilAttachmentOptimal };
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/* only one subpass for now, uses both attachments */
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auto subpass_desc = vk::SubpassDescription {
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.pipelineBindPoint = vk::PipelineBindPoint::eGraphics,
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.colorAttachmentCount = 1,
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.pColorAttachments = &color_attach_ref,
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.pDepthStencilAttachment = &depth_attach_ref,
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};
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/* designates producer and consumer of the image to position subpass */
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auto color_dep = vk::SubpassDependency{
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.srcSubpass = vk::SubpassExternal,
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.dstSubpass = 0,
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.srcStageMask = vk::PipelineStageFlagBits::eColorAttachmentOutput,
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.dstStageMask = vk::PipelineStageFlagBits::eColorAttachmentOutput,
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.srcAccessMask = vk::AccessFlagBits::eNone,
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.dstAccessMask = vk::AccessFlagBits::eColorAttachmentRead | vk::AccessFlagBits::eColorAttachmentWrite,
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};
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auto depth_dep = vk::SubpassDependency {
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.srcSubpass = vk::SubpassExternal,
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.dstSubpass = 0,
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.srcStageMask = vk::PipelineStageFlagBits::eEarlyFragmentTests | vk::PipelineStageFlagBits::eLateFragmentTests,
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.dstStageMask = vk::PipelineStageFlagBits::eEarlyFragmentTests | vk::PipelineStageFlagBits::eLateFragmentTests,
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.srcAccessMask = vk::AccessFlagBits::eNone,
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.dstAccessMask = vk::AccessFlagBits::eDepthStencilAttachmentWrite,
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};
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vk::AttachmentDescription descs[] = { color_attach_desc, depth_attach_desc };
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vk::SubpassDependency deps[] = { color_dep, depth_dep};
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vk::SubpassDescription subpasses[] = {subpass_desc};
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auto pass_info = vk::RenderPassCreateInfo {
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.attachmentCount = static_cast<uint32_t>(std::size(descs)),
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.pAttachments = descs,
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.subpassCount = static_cast<uint32_t>(std::size(subpasses)),
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.pSubpasses = subpasses,
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.dependencyCount = static_cast<uint32_t>(std::size(deps)),
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.pDependencies = deps,
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};
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render_pass = dev.createRenderPass(pass_info);
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}
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void RenderPass::cleanup(vk::Device dev) {
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dev.destroyRenderPass(render_pass);
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} |