Changeset 6fc24c7 in opengl-game for vulkan-game.cpp

Timestamp:

Sep 27, 2019, 7:58:33 PM (5 years ago)

Author:

Dmitry Portnoy <dmitry.portnoy@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

0e09340

Parents:

f94eea9

Message:

In vulkangame, add code to create a render pass

File:

• vulkan-game.cpp (modified) (3 diffs)

vulkan-game.cpp

@@ -1 +1 @@
 #include "vulkan-game.hpp"
 
+#include <array>
 #include <iostream>
 #include <set>
@@ -102 +103 @@
    createSwapChain();
    createImageViews();
+   createRenderPass();
 }
 
@@ -419 +421 @@
 }
 
+void VulkanGame::createRenderPass() {
+   VkAttachmentDescription colorAttachment = {};
+   colorAttachment.format = swapChainImageFormat;
+   colorAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
+   colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+   colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
+   colorAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+   colorAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+   colorAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+   colorAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
+
+   VkAttachmentReference colorAttachmentRef = {};
+   colorAttachmentRef.attachment = 0;
+   colorAttachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+
+   VkAttachmentDescription depthAttachment = {};
+   depthAttachment.format = findDepthFormat();
+   depthAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
+   depthAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+   depthAttachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+   depthAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+   depthAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+   depthAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+   depthAttachment.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
+
+   VkAttachmentReference depthAttachmentRef = {};
+   depthAttachmentRef.attachment = 1;
+   depthAttachmentRef.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
+
+   VkSubpassDescription subpass = {};
+   subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
+   subpass.colorAttachmentCount = 1;
+   subpass.pColorAttachments = &colorAttachmentRef;
+   subpass.pDepthStencilAttachment = &depthAttachmentRef;
+
+   VkSubpassDependency dependency = {};
+   dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
+   dependency.dstSubpass = 0;
+   dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+   dependency.srcAccessMask = 0;
+   dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+   dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
+
+   array<VkAttachmentDescription, 2> attachments = { colorAttachment, depthAttachment };
+   VkRenderPassCreateInfo renderPassInfo = {};
+   renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
+   renderPassInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
+   renderPassInfo.pAttachments = attachments.data();
+   renderPassInfo.subpassCount = 1;
+   renderPassInfo.pSubpasses = &subpass;
+   renderPassInfo.dependencyCount = 1;
+   renderPassInfo.pDependencies = &dependency;
+
+   if (vkCreateRenderPass(device, &renderPassInfo, nullptr, &renderPass) != VK_SUCCESS) {
+      throw runtime_error("failed to create render pass!");
+   }
+}
+
+VkFormat VulkanGame::findDepthFormat() {
+   return VulkanUtils::findSupportedFormat(
+      physicalDevice,
+      { VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT },
+      VK_IMAGE_TILING_OPTIMAL,
+      VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT
+   );
+}
+
 void VulkanGame::cleanupSwapChain() {
+   vkDestroyRenderPass(device, renderPass, nullptr);
+
    for (auto imageView : swapChainImageViews) {
       vkDestroyImageView(device, imageView, nullptr);