Add swap chain image barrier

Refs SaschaWillems#1225

Author: SaschaWillems

examples/dynamicrenderingmultisampling/dynamicrenderingmultisampling.cpp

@@ -315,6 +315,17 @@ class VulkanExample : public VulkanExampleBase
 			VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT | VK_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT,
 			VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT | VK_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT,
 			VkImageSubresourceRange{ VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT, 0, 1, 0, 1 });
+		// We also need an initial barrier for the swap chain image to make it usable for general layout
+		vks::tools::insertImageMemoryBarrier(
+			cmdBuffer,
+			swapChain.images[currentImageIndex],
+			0,
+			VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
+			VK_IMAGE_LAYOUT_UNDEFINED,
+			VK_IMAGE_LAYOUT_GENERAL,
+			VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
+			VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
+			VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
 
 		// New structures are used to define the attachments used in dynamic rendering
 		VkRenderingAttachmentInfoKHR colorAttachment{};