public unsafe bool GetDeviceExtensionSupported(string extName)
{
uint propCount = 0;
vkEnumerateDeviceExtensionProperties(phy, IntPtr.Zero, out propCount, IntPtr.Zero);
VkExtensionProperties[] extProps = new VkExtensionProperties[propCount];
vkEnumerateDeviceExtensionProperties(phy, IntPtr.Zero, out propCount, extProps.Pin());
extProps.Unpin();
for (int i = 0; i < extProps.Length; i++)
{
fixed(VkExtensionProperties *ep = extProps)
{
IntPtr n = (IntPtr)ep[i].extensionName;
if (Marshal.PtrToStringAnsi(n) == extName)
{
return(true);
}
}
}
Console.WriteLine($"INFO: unsuported device extension: {extName}");
return(false);
}
unsafe void init()
{
// Gather physical Device memory properties
IntPtr tmp = Marshal.AllocHGlobal(Marshal.SizeOf <VkPhysicalDeviceMemoryProperties>());
vkGetPhysicalDeviceMemoryProperties(phy, tmp);
memoryProperties = Marshal.PtrToStructure <VkPhysicalDeviceMemoryProperties> (tmp);
uint queueFamilyCount = 0;
vkGetPhysicalDeviceQueueFamilyProperties(phy, out queueFamilyCount, IntPtr.Zero);
QueueFamilies = new VkQueueFamilyProperties[queueFamilyCount];
if (queueFamilyCount <= 0)
{
throw new Exception("No queues found for physical device");
}
vkGetPhysicalDeviceQueueFamilyProperties(phy, out queueFamilyCount, QueueFamilies.Pin());
QueueFamilies.Unpin();
uint propCount = 0;
vkEnumerateDeviceExtensionProperties(phy, IntPtr.Zero, out propCount, IntPtr.Zero);
VkExtensionProperties[] extProps = new VkExtensionProperties[propCount];
vkEnumerateDeviceExtensionProperties(phy, IntPtr.Zero, out propCount, extProps.Pin());
extProps.Unpin();
for (int i = 0; i < extProps.Length; i++)
{
fixed(VkExtensionProperties *ep = extProps)
{
IntPtr n = (IntPtr)ep[i].extensionName;
switch (Marshal.PtrToStringAnsi(n))
{
case "VK_KHR_swapchain":
HasSwapChainSupport = true;
break;
}
}
}
}