/// <summary>
/// VulkanSharp provides no way to make a SurfaceKhr given a pointer
/// to one, so there was no way to use GLFW's Vulkan compatibility
/// surface creation.
///
/// The solution is this awful thing.
/// </summary>
public static Vk.SurfaceKhr CreateSurfaceFromHandle(IntPtr handle)
{
Type surfaceType = typeof(Vk.SurfaceKhr);
Vk.SurfaceKhr surface = (Vk.SurfaceKhr)FormatterServices.GetUninitializedObject(surfaceType);
FieldInfo handleField = surfaceType.GetField("m", BindingFlags.FlattenHierarchy |
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
handleField.SetValue(surface, (ulong)handle.ToInt64());
return(surface);
}
public static SwapchainSupportDetails QuerySwapchainSupport(Vk.PhysicalDevice device, Vk.SurfaceKhr surface)
{
SwapchainSupportDetails support = new SwapchainSupportDetails();
support.capabilities = device.GetSurfaceCapabilitiesKHR(surface);
support.formats = device.GetSurfaceFormatsKHR(surface);
support.presentModes = device.GetSurfacePresentModesKHR(surface);
return(support);
}
public static bool CheckPhysicalDeviceQueueFamilySupport(Vk.PhysicalDevice device,
Vk.QueueFlags flags, Vk.SurfaceKhr surface, out QueueFamilyIndices queueFamilies)
{
Vk.QueueFamilyProperties[] props = device.GetQueueFamilyProperties();
queueFamilies = new QueueFamilyIndices();
for (uint i = 0; i < props.Length; i++)
{
Vk.QueueFamilyProperties family = props[i];
if (family.QueueCount > 0)
{
if (family.QueueFlags.HasFlag(flags))
{
queueFamilies.GraphicsFamily = i;
}
if (device.GetSurfaceSupportKHR(i, surface))
{
queueFamilies.PresentFamily = i;
}
if (queueFamilies.AllFamiliesExist())
{
return(true);
}
}
}
return(false);
}
