public static IntPtr GetDelegate(VkInstance inst, string name)
{
byte[] n = System.Text.Encoding.UTF8.GetBytes(name + '\0');
GCHandle hnd = GCHandle.Alloc(n, GCHandleType.Pinned);
IntPtr del = Vk.vkGetInstanceProcAddr(inst, hnd.AddrOfPinnedObject());
if (del == IntPtr.Zero)
{
System.Diagnostics.Debug.WriteLine("instance function pointer not found for " + name);
}
hnd.Free();
return(del);
}
public static unsafe void DestroyDebugReportCallback(Instance instance, DebugReportCallbackEXT debugReportCallbackEXT)
{
if (debugReportCallbackEXT.NativePointer != 0)
{
var name = "vkDestroyDebugReportCallbackEXT";
var fnPointer = Vk.GetInstanceProcAddr(instance, name);
if (fnPointer == IntPtr.Zero)
{
throw new NullReferenceException($"Didn't find InstanceProcAddr {name}");
}
var destroyDebugReportCallback = (DestroyDebugReportCallbackDelegate)Marshal.GetDelegateForFunctionPointer(fnPointer, typeof(DestroyDebugReportCallbackDelegate));
destroyDebugReportCallback(instance.NativePointer, debugReportCallbackEXT.NativePointer, null);
}
}
/// <summary>
/// try to get device function handle if available
/// </summary>
public static void GetDelegate(VkDevice dev, string name, ref IntPtr ptr)
{
byte[] n = System.Text.Encoding.UTF8.GetBytes(name + '\0');
GCHandle hnd = GCHandle.Alloc(n, GCHandleType.Pinned);
IntPtr del = Vk.vkGetDeviceProcAddr(dev, hnd.AddrOfPinnedObject());
if (del == IntPtr.Zero)
{
System.Diagnostics.Debug.WriteLine("device function pointer not found for " + name);
}
else
{
ptr = del;
}
hnd.Free();
}
public static unsafe DebugReportCallbackEXT CreateDebugReportCallback(Instance instance, DebugReportCallbackDelegate callback)
{
var name = "vkCreateDebugReportCallbackEXT";
var nameBytes = Encoding.ASCII.GetBytes(name);
var procAddr = Vk.GetInstanceProcAddr(instance, name);
if (procAddr == IntPtr.Zero)
{
throw new NullReferenceException($"Didn't find InstanceProcAddr {nameBytes}");
}
debugDelegate = callback;
GC.KeepAlive(debugDelegate);
callbackHolder = Marshal.GetFunctionPointerForDelegate(callback);
GC.KeepAlive(callbackHolder);
var createDelegate = (CreateDebugReportCallbackEXT_Delegate)Marshal.GetDelegateForFunctionPointer(procAddr, typeof(CreateDebugReportCallbackEXT_Delegate));
var createInfo = new DebugReportCallbackCreateInfoEXT
{
Flags = (DebugReportFlagsEXT)0x1F,//DebugReportFlagsEXT.Error | DebugReportFlagsEXT.Warning | DebugReportFlagsEXT.PerformanceWarning,
Callback = callbackHolder,
};
var debugReportCallbackEXT = new DebugReportCallbackEXT();
fixed(UInt64 *ptr = &debugReportCallbackEXT.NativePointer)
{
var result = createDelegate(instance.NativePointer, createInfo.NativePointer, null, ptr);
if (result != Result.Success)
{
throw new VulkanResultException("vkCreateDebugReportCallbackEXT", result);
}
}
createInfo.Dispose();
return(debugReportCallbackEXT);
}
static Vk()
{
s_nativeLib = LoadNativeLibrary();
Vk.LoadFunctionPointers();
}