src/main.cpp: Implement queue semaphore syncronization

Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
index dbacb24..b62fd6c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -50,6 +50,9 @@ private:
     VDeleter<VkCommandPool> commandPool{device, vkDestroyCommandPool};
     std::vector<VkCommandBuffer> commandBuffers;
 
+    VDeleter<VkSemaphore> imageAvailableSemaphore{device, vkDestroySemaphore};
+    VDeleter<VkSemaphore> renderFinishedSemaphore{device, vkDestroySemaphore};
+
     struct QueueFamilyIndices {
 	    int graphicsFamily = -1;
 	    int presentFamily  = -1;
@@ -99,6 +102,16 @@ private:
 	    createFramebuffers();
 	    createCommandPool();
 	    createCommandBuffers();
+	    createSemaphores();
+    }
+
+    void createSemaphores() {
+	    VkSemaphoreCreateInfo semaphoreInfo = {};
+	    semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
+
+	    if (vkCreateSemaphore(device, &semaphoreInfo, nullptr, imageAvailableSemaphore.replace()) != VK_SUCCESS ||
+		vkCreateSemaphore(device, &semaphoreInfo, nullptr, renderFinishedSemaphore.replace()) != VK_SUCCESS)
+		    throw std::runtime_error("failed to create semaphores!");
     }
 
     void createCommandPool() {
@@ -593,6 +606,8 @@ private:
 		    drawFrame();
 	    }
 
+	    vkDeviceWaitIdle(device);
+
 	    glfwDestroyWindow(window);
     }