Added barriers

examples/dynamicrendering/dynamicrendering.cpp

@@ -90,7 +90,29 @@ public:
 		{
 			VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
 
-			// @todo: comment
+			// Transition color and depth images for drawing
+			vks::tools::insertImageMemoryBarrier(
+				drawCmdBuffers[i],
+				swapChain.buffers[i].image,
+				0,
+				VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
+				VK_IMAGE_LAYOUT_UNDEFINED,
+				VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+				VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
+				VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
+				VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
+			vks::tools::insertImageMemoryBarrier(
+				drawCmdBuffers[i],
+				swapChain.buffers[i].image,
+				0,
+				VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT,
+				VK_IMAGE_LAYOUT_UNDEFINED,
+				VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL,
+				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, 0, 1, 0, 1 });
+
+			// New structures are used to define the attachments used in dynamic rendering
 			VkRenderingAttachmentInfoKHR colorAttachment{};
 			colorAttachment.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO_KHR;
 			colorAttachment.imageView = swapChain.buffers[i].view;
@@ -135,6 +157,18 @@ public:
 			// End dynamic rendering
 			vkCmdEndRenderingKHR(drawCmdBuffers[i]);
 
+			// Transition color image for presentation
+			vks::tools::insertImageMemoryBarrier(
+				drawCmdBuffers[i],
+				swapChain.buffers[i].image,
+				VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
+				0,
+				VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+				VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
+				VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
+				VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT,
+				VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
+
 			VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
 		}
 	}