Changeset 34bdf3a in opengl-game for vulkan-game.cpp

Timestamp:

Oct 24, 2019, 3:35:49 PM (5 years ago)

Author:

Dmitry Portnoy <dmitry.portnoy@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

87c8f1a

Parents:

603b5bc

Message:

In vulkangame, create Vulkan synchronization objects for rendering

File:

• vulkan-game.cpp (modified) (4 diffs)

vulkan-game.cpp

@@ -18 +18 @@
 };
 
-VulkanGame::VulkanGame() {
+VulkanGame::VulkanGame(int maxFramesInFlight) : MAX_FRAMES_IN_FLIGHT(maxFramesInFlight) {
    gui = nullptr;
    window = nullptr;
@@ -169 +169 @@
    graphicsPipelines.back().createDescriptorSets(swapChainImages);
 
-   createCommandBuffers();
-
    // TODO: Creating the descriptor pool and descriptor sets might need to be redone when the
    // swap chain is recreated
 
    cout << "Created " << graphicsPipelines.size() << " graphics pipelines" << endl;
+
+   createCommandBuffers();
+
+   createSyncObjects();
 }
 
@@ -250 +252 @@
    }
 
+   for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) {
+      vkDestroySemaphore(device, renderFinishedSemaphores[i], nullptr);
+      vkDestroySemaphore(device, imageAvailableSemaphores[i], nullptr);
+      vkDestroyFence(device, inFlightFences[i], nullptr);
+   }
+
    vkDestroyCommandPool(device, commandPool, nullptr);
    vkDestroyDevice(device, nullptr);
@@ -741 +749 @@
 }
 
+void VulkanGame::createSyncObjects() {
+   imageAvailableSemaphores.resize(MAX_FRAMES_IN_FLIGHT);
+   renderFinishedSemaphores.resize(MAX_FRAMES_IN_FLIGHT);
+   inFlightFences.resize(MAX_FRAMES_IN_FLIGHT);
+
+   VkSemaphoreCreateInfo semaphoreInfo = {};
+   semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
+
+   VkFenceCreateInfo fenceInfo = {};
+   fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
+   fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
+
+   for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) {
+      if (vkCreateSemaphore(device, &semaphoreInfo, nullptr, &imageAvailableSemaphores[i]) != VK_SUCCESS ||
+            vkCreateSemaphore(device, &semaphoreInfo, nullptr, &renderFinishedSemaphores[i]) != VK_SUCCESS ||
+            vkCreateFence(device, &fenceInfo, nullptr, &inFlightFences[i]) != VK_SUCCESS) {
+         throw runtime_error("failed to create synchronization objects for a frame!");
+      }
+   }
+}
+
 void VulkanGame::cleanupSwapChain() {
    VulkanUtils::destroyVulkanImage(device, depthImage);