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Added comment on oldSwapChain

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This commit is contained in:
Sascha Willems 2021-03-02 07:33:18 +01:00
parent 70ec72e790
commit 35288a6f2b
1 changed files with 3 additions and 3 deletions
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6
base/VulkanSwapChain.cpp
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@ -3,7 +3,7 @@
*
* A swap chain is a collection of framebuffers used for rendering and presentation to the windowing system
*
* Copyright (C) 2016-2017 by Sascha Willems - www.saschawillems.de
* Copyright (C) 2016-2021 by Sascha Willems - www.saschawillems.de
*
* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
*/
@ -223,6 +223,7 @@ void VulkanSwapChain::connect(VkInstance instance, VkPhysicalDevice physicalDevi
*/
void VulkanSwapChain::create(uint32_t *width, uint32_t *height, bool vsync)
{
// Store the current swap chain handle so we can use it later on to ease up recreation
VkSwapchainKHR oldSwapchain = swapChain;
// Get physical device surface properties and formats
@ -316,7 +317,6 @@ void VulkanSwapChain::create(uint32_t *width, uint32_t *height, bool vsync)
VkSwapchainCreateInfoKHR swapchainCI = {};
swapchainCI.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
swapchainCI.pNext = NULL;
swapchainCI.surface = surface;
swapchainCI.minImageCount = desiredNumberOfSwapchainImages;
swapchainCI.imageFormat = colorFormat;
@ -327,8 +327,8 @@ void VulkanSwapChain::create(uint32_t *width, uint32_t *height, bool vsync)
swapchainCI.imageArrayLayers = 1;
swapchainCI.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
swapchainCI.queueFamilyIndexCount = 0;
swapchainCI.pQueueFamilyIndices = NULL;
swapchainCI.presentMode = swapchainPresentMode;
// Setting oldSwapChain to the saved handle of the previous swapchain aids in resource reuse and makes sure that we can still present already acquired images
swapchainCI.oldSwapchain = oldSwapchain;
// Setting clipped to VK_TRUE allows the implementation to discard rendering outside of the surface area
swapchainCI.clipped = VK_TRUE;