Renderer/RenderPass: Implement RenderPass correctly

2021-02-15 18:14:47 +01:00
parent 3d84479d0e
commit d058a127e1
11 changed files with 543 additions and 133 deletions
--- a/src/Nazara/VulkanRenderer/VulkanRenderPass.cpp
+++ b/src/Nazara/VulkanRenderer/VulkanRenderPass.cpp
@@ -3,8 +3,116 @@
 // For conditions of distribution and use, see copyright notice in Config.hpp

 #include <Nazara/VulkanRenderer/VulkanRenderPass.hpp>
+#include <Nazara/Core/StackVector.hpp>
+#include <Nazara/VulkanRenderer/Utils.hpp>
+#include <stdexcept>
 #include <Nazara/VulkanRenderer/Debug.hpp>

 namespace Nz
 {
+	inline VulkanRenderPass::VulkanRenderPass(Vk::Device& device, std::vector<Attachment> attachments, std::vector<SubpassDescription> subpassDescriptions, std::vector<SubpassDependency> subpassDependencies) :
+	RenderPass(std::move(attachments), std::move(subpassDescriptions), std::move(subpassDependencies))
+	{
+		std::size_t totalAttachmentReference = 0;
+		for (const SubpassDescription& subpassInfo : m_subpassDescriptions)
+		{
+			totalAttachmentReference += subpassInfo.colorAttachment.size();
+			totalAttachmentReference += subpassInfo.inputAttachments.size();
+
+			if (subpassInfo.depthStencilAttachment)
+				totalAttachmentReference++;
+		}
+
+		StackVector<VkAttachmentDescription> vkAttachments = NazaraStackVector(VkAttachmentDescription, m_attachments.size());
+		for (const Attachment& attachmentInfo : m_attachments)
+		{
+			vkAttachments.push_back({
+				0,
+				ToVulkan(attachmentInfo.format),
+				VK_SAMPLE_COUNT_1_BIT,
+				ToVulkan(attachmentInfo.loadOp),
+				ToVulkan(attachmentInfo.storeOp),
+				ToVulkan(attachmentInfo.stencilLoadOp),
+				ToVulkan(attachmentInfo.stencilStoreOp),
+				ToVulkan(attachmentInfo.initialLayout),
+				ToVulkan(attachmentInfo.finalLayout)
+			});
+		}
+
+		StackVector<VkAttachmentReference> vkAttachmentReferences = NazaraStackVector(VkAttachmentReference, totalAttachmentReference);
+
+		StackVector<VkSubpassDescription> vkSubpassDescs = NazaraStackVector(VkSubpassDescription, m_subpassDescriptions.size());
+		for (const SubpassDescription& subpassInfo : m_subpassDescriptions)
+		{
+			std::size_t colorAttachmentIndex = vkAttachmentReferences.size();
+			for (const AttachmentReference& attachmentRef : subpassInfo.colorAttachment)
+			{
+				vkAttachmentReferences.push_back({
+					UInt32(attachmentRef.attachmentIndex),
+					ToVulkan(attachmentRef.attachmentLayout)
+				});
+			}
+			
+			std::size_t inputAttachmentIndex = vkAttachmentReferences.size();
+			for (const AttachmentReference& attachmentRef : subpassInfo.inputAttachments)
+			{
+				vkAttachmentReferences.push_back({
+					UInt32(attachmentRef.attachmentIndex),
+					ToVulkan(attachmentRef.attachmentLayout)
+				});
+			}
+
+			std::size_t depthStencilAttachmentIndex = vkAttachmentReferences.size();
+			if (subpassInfo.depthStencilAttachment)
+			{
+				auto& depthStencilRef = *subpassInfo.depthStencilAttachment;
+				vkAttachmentReferences.push_back({
+					UInt32(depthStencilRef.attachmentIndex),
+					ToVulkan(depthStencilRef.attachmentLayout)
+				});
+			}
+
+			vkSubpassDescs.push_back({
+				VkSubpassDescriptionFlags(0),
+				VK_PIPELINE_BIND_POINT_GRAPHICS,
+				UInt32(subpassInfo.inputAttachments.size()),
+				&vkAttachmentReferences[inputAttachmentIndex],
+				UInt32(subpassInfo.colorAttachment.size()),
+				&vkAttachmentReferences[colorAttachmentIndex],
+				nullptr,
+				(subpassInfo.depthStencilAttachment) ? &vkAttachmentReferences[depthStencilAttachmentIndex] : nullptr,
+				0,
+				nullptr
+			});
+		}
+
+		StackVector<VkSubpassDependency> vkSubpassDeps = NazaraStackVector(VkSubpassDependency, m_subpassDependencies.size());
+		for (const SubpassDependency& subpassDependency : m_subpassDependencies)
+		{
+			vkSubpassDeps.push_back({
+				UInt32(subpassDependency.fromSubpassIndex),
+				UInt32(subpassDependency.toSubpassIndex),
+				ToVulkan(subpassDependency.fromStages),
+				ToVulkan(subpassDependency.toStages),
+				ToVulkan(subpassDependency.fromAccessFlags),
+				ToVulkan(subpassDependency.toAccessFlags),
+				VkDependencyFlags((subpassDependency.tilable) ? VK_DEPENDENCY_BY_REGION_BIT : 0)
+			});
+		}
+
+		VkRenderPassCreateInfo renderPassInfo = {
+			VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO, // sType
+			nullptr,                                   // pNext
+			0,                                         // flags
+			UInt32(vkAttachments.size()),              // attachmentCount
+			vkAttachments.data(),                      // pAttachments
+			UInt32(vkSubpassDescs.size()),             // subpassCount
+			vkSubpassDescs.data(),                     // pSubpasses
+			UInt32(vkSubpassDeps.size()),              // dependencyCount
+			vkSubpassDeps.data()                       // pDependencies
+		};
+
+		if (!m_renderPass.Create(device, renderPassInfo))
+			throw std::runtime_error("failed to instantiate Vulkan render pass: " + TranslateVulkanError(m_renderPass.GetLastErrorCode()));
+	}
 }