public VkObjectResult <VkSurfaceCapabilitiesKHR> GetSurfaceCapabilitiesKHR(IVkSurfaceKHR surface)
{
VkSurfaceCapabilitiesKHR capabilities;
var result = Direct.GetPhysicalDeviceSurfaceCapabilitiesKHR(Handle, surface.Handle, &capabilities);
return(new VkObjectResult <VkSurfaceCapabilitiesKHR>(result, capabilities));
}
public VkObjectResult <bool> GetSurfaceSupportKHR(int queueFamiltyIndex, IVkSurfaceKHR surface)
{
var surfaceHandle = surface?.Handle ?? VkSurfaceKHR.HandleType.Null;
VkBool32 supported;
var result = Direct.GetPhysicalDeviceSurfaceSupportKHR(Handle, queueFamiltyIndex, surfaceHandle, &supported);
return(new VkObjectResult <bool>(result, supported.Value));
}
private void CreateSurface()
{
var createInfo = new VkWin32SurfaceCreateInfoKHR
{
Hwnd = form.Handle,
Hinstance = Process.GetCurrentProcess().Handle
};
surface = instance.CreateWin32SurfaceKHR(createInfo, null).Object;
}
private static bool IsDeviceSuitable(IVkPhysicalDevice physicalDevice, IVkSurfaceKHR surface)
{
var extensionProps = physicalDevice.EnumerateDeviceExtensionProperties(null).Object;
if (!DeviceExtensions.All(e => extensionProps.Any(p => p.ExtensionName == e)))
{
return(false);
}
var swapChainSupportDetails = QuerySwapChainSupport(physicalDevice, surface);
return
(swapChainSupportDetails.Formats.Any() &&
swapChainSupportDetails.PresentModes.Any() &&
FindQueueFamilies(physicalDevice, surface).HasValue);
}
private static SwapChainSupportDetails QuerySwapChainSupport(IVkPhysicalDevice physicalDevice, IVkSurfaceKHR surface)
{
return(new SwapChainSupportDetails
{
Capabilities = physicalDevice.GetSurfaceCapabilitiesKHR(surface).Object,
Formats = physicalDevice.GetSurfaceFormatsKHR(surface).Object,
PresentModes = physicalDevice.GetSurfacePresentModesKHR(surface).Object
});
}
private static QueueFamilyIndices?FindQueueFamilies(IVkPhysicalDevice physicalDevice, IVkSurfaceKHR surface)
{
var graphicsFamily = physicalDevice.QueueFamilyProperties
.Select((p, i) => new { p, i })
.FirstOrDefault(x => x.p.QueueCount > 0 && (x.p.QueueFlags & VkQueueFlags.Graphics) != 0)
?.i;
var presentFamily = physicalDevice.QueueFamilyProperties
.Select((p, i) => new { p, i })
.FirstOrDefault(x => x.p.QueueCount > 0 && physicalDevice.GetSurfaceSupportKHR(x.i, surface).Object)
?.i;
return(graphicsFamily.HasValue && presentFamily.HasValue ? new QueueFamilyIndices
{
GraphicsFamily = graphicsFamily.Value,
PresentFamily = presentFamily.Value
} : (QueueFamilyIndices?)null);
}
public VkObjectResult <IReadOnlyList <VkPresentModeKHR> > GetSurfacePresentModesKHR(IVkSurfaceKHR surface)
{
int count;
Direct.GetPhysicalDeviceSurfacePresentModesKHR(Handle, surface.Handle, &count, null).CheckSuccess();
var resultArray = new VkPresentModeKHR[count];
fixed(VkPresentModeKHR *pResults = resultArray)
{
var result = Direct.GetPhysicalDeviceSurfacePresentModesKHR(Handle, surface.Handle, &count, pResults);
return(new VkObjectResult <IReadOnlyList <VkPresentModeKHR> >(result, resultArray));
}
}
private VkObjectResult<bool> GetPhysicalDeviceSurfaceSupportKHR(int queueFamiltyIndex, IVkSurfaceKHR surface)
{
var surfaceHandle = surface?.Handle ?? VkSurfaceKHR.HandleType.Null;
VkBool32 supported;
var result = Direct.GetPhysicalDeviceSurfaceSupportKHR(Handle, queueFamiltyIndex, surfaceHandle, &supported);
return new VkObjectResult<bool>(result, supported.Value);
}