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Added new constructor to SwapchainBuilder

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It is now possible to pass in a vkb::Device and a VkSurfaceKHR handle
into the swapchain builder, and it will correctly get the queue indexes
necessary to create a swapchain. This solved the 'delayed surface
initialization' problem
This commit is contained in:
Charles Giessen 2020-04-19 17:59:32 -06:00
parent ace1ccf854
commit d99c378eea
2 changed files with 20 additions and 0 deletions
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18
src/VkBootstrap.cpp
View File

@ -233,6 +233,8 @@ const char* to_string (DeviceError err) {
}
const char* to_string (SwapchainError err) {
switch (err) {
case SwapchainError::surface_handle_not_provided:
return "surface_handle_not_provided";
case SwapchainError::failed_query_surface_support_details:
return "failed_query_surface_support_details";
case SwapchainError::failed_create_swapchain:
@ -1191,6 +1193,18 @@ SwapchainBuilder::SwapchainBuilder (Device const& device) {
info.graphics_queue_index = present.value ();
info.present_queue_index = graphics.value ();
}
SwapchainBuilder::SwapchainBuilder (Device const& device, VkSurfaceKHR const surface) {
info.device = device.device;
info.physical_device = device.physical_device.physical_device;
info.surface = surface;
Device temp_device = device;
temp_device.surface = surface;
auto present = temp_device.get_queue_index (QueueType::present);
auto graphics = temp_device.get_queue_index (QueueType::graphics);
// TODO: handle error of queue's not available
info.graphics_queue_index = present.value ();
info.present_queue_index = graphics.value ();
}
SwapchainBuilder::SwapchainBuilder (
VkPhysicalDevice const physical_device, VkDevice const device, VkSurfaceKHR const surface) {
@ -1211,6 +1225,10 @@ detail::Expected<Swapchain, detail::Error<SwapchainError>> SwapchainBuilder::bui
}
detail::Expected<Swapchain, detail::Error<SwapchainError>> SwapchainBuilder::build (
VkSwapchainKHR old_swapchain) const {
if (info.surface == VK_NULL_HANDLE) {
return detail::Error<SwapchainError>{ SwapchainError::surface_handle_not_provided };
}
auto desired_formats = info.desired_formats;
if (desired_formats.size () == 0) add_desired_formats (desired_formats);
auto desired_present_modes = info.desired_present_modes;

2
src/VkBootstrap.h
View File

@ -125,6 +125,7 @@ enum class DeviceError {
failed_create_device,
};
enum class SwapchainError {
surface_handle_not_present,
failed_query_surface_support_details,
failed_create_swapchain,
failed_get_swapchain_images,
@ -523,6 +524,7 @@ void destroy_swapchain (Swapchain const& swapchain);
class SwapchainBuilder {
public:
SwapchainBuilder (Device const& device);
SwapchainBuilder (Device& device, VkSurfaceKHR const surface);
SwapchainBuilder (VkPhysicalDevice const physical_device, VkDevice const device, VkSurfaceKHR const surface);
detail::Expected<Swapchain, detail::Error<SwapchainError>> build () const;