Initial commit

desktop/graphics/vulkan_render_pass.cpp

@@ -0,0 +1,83 @@
+#include "vulkan_render_pass.h"
+
+#include "vulkan_adapter.h"
+#include "vulkan_common.h"
+
+namespace progressia {
+namespace desktop {
+
+RenderPass::RenderPass(Vulkan &vulkan) : vulkan(vulkan) {
+
+    std::vector<VkAttachmentDescription> attachmentDescriptions;
+    std::vector<VkAttachmentReference> attachmentReferences;
+    VkAttachmentReference depthAttachmentRef{};
+    const auto &attachments = vulkan.getAdapter().getAttachments();
+
+    for (std::size_t i = 0; i < attachments.size(); i++) {
+        const auto &attachment = attachments[i];
+        VkAttachmentDescription *desc;
+        VkAttachmentReference *ref;
+
+        attachmentDescriptions.push_back({});
+        desc = &attachmentDescriptions.back();
+        if (attachment.aspect == VK_IMAGE_ASPECT_DEPTH_BIT) {
+            ref = &depthAttachmentRef;
+        } else {
+            attachmentReferences.push_back({});
+            ref = &attachmentReferences.back();
+        }
+
+        desc->format = attachment.image == nullptr ? attachment.format
+                                                   : attachment.image->format;
+        desc->samples = VK_SAMPLE_COUNT_1_BIT;
+        desc->loadOp = attachment.loadOp;
+        desc->storeOp = attachment.storeOp;
+        desc->stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+        desc->stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+        desc->initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+        desc->finalLayout = attachment.finalLayout;
+
+        ref->attachment = i;
+        ref->layout = attachment.workLayout;
+    }
+
+    VkSubpassDescription subpass{};
+    subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
+    subpass.colorAttachmentCount = attachmentReferences.size();
+    subpass.pColorAttachments = attachmentReferences.data();
+    subpass.pDepthStencilAttachment = &depthAttachmentRef;
+
+    VkSubpassDependency dependency{};
+    dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
+    dependency.dstSubpass = 0;
+    dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT |
+                              VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT;
+    dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT |
+                              VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT;
+    dependency.srcAccessMask = 0;
+    dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT |
+                               VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
+
+    VkRenderPassCreateInfo renderPassInfo{};
+    renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
+    renderPassInfo.attachmentCount =
+        static_cast<uint32_t>(attachmentDescriptions.size());
+    renderPassInfo.pAttachments = attachmentDescriptions.data();
+    renderPassInfo.subpassCount = 1;
+    renderPassInfo.pSubpasses = &subpass;
+    renderPassInfo.dependencyCount = 1;
+    renderPassInfo.pDependencies = &dependency;
+
+    vulkan.handleVkResult(
+        "Could not create render pass",
+        vkCreateRenderPass(vulkan.getDevice(), &renderPassInfo, nullptr, &vk));
+}
+
+RenderPass::~RenderPass() {
+    vkDestroyRenderPass(vulkan.getDevice(), vk, nullptr);
+}
+
+VkRenderPass RenderPass::getVk() { return vk; }
+
+} // namespace desktop
+} // namespace progressia