Puppet2D.Window/Vulkan.cs - master - EugenyCh7/Puppet2D.Net

Puppet2D.Window/Vulkan.cs
64 строки3 KB
EugenyCh7
comments fix
24 июл 2025, 22:54
24 июл 2025, 22:54421ed1f
using System;
using System.Runtime.InteropServices;
using System.Security;
using Puppet2D.System;

namespace Puppet2D.Window
{
    /// <summary>Vulkan helper functions</summary>
    public static class Vulkan
    {
        /// <summary>
        /// Tell whether or not the system supports Vulkan
        ///
        /// This function should always be called before using
        /// the Vulkan features. If it returns false, then
        /// any attempt to use Vulkan will fail.
        /// 
        /// If only compute is required, set <paramref name="requireGraphics"/>
        /// to false to skip checking for the extensions necessary
        /// for graphics rendering.
        /// </summary>
        /// <param name="requireGraphics"> True to skip checking for graphics extensions, false otherwise </param>
        /// <returns>True if Vulkan is supported, false otherwise</returns>
        public static bool IsAvailable(bool requireGraphics = true) => sfVulkan_isAvailable(requireGraphics);

        /// <summary>
        /// Get the address of a Vulkan function
        /// </summary>
        /// <param name="name"> Name of the function to get the address of </param>
        /// <returns>Address of the Vulkan function, <see cref="IntPtr.Zero"/> on failure</returns>
        public static IntPtr GetFunction(string name) => sfVulkan_getFunction(name);

        /// <summary>
        /// Get Vulkan instance extensions required for graphics
        /// </summary>
        /// <returns>Vulkan instance extensions required for graphics</returns>
        public static string[] GetGraphicsRequiredInstanceExtensions()
        {
            unsafe
            {
                var extensionsPtr = sfVulkan_getGraphicsRequiredInstanceExtensions(out var count);
                var extensions = new string[(int)count];

                for (int i = 0; i < (int)count; ++i)
                {
                    extensions[i] = Marshal.PtrToStringAnsi(extensionsPtr[i]);
                }

                return extensions;
            }
        }

        #region Imports
        [DllImport(CSFML.window, CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
        private static extern bool sfVulkan_isAvailable(bool requireGraphics);

        [DllImport(CSFML.window, CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
        private static extern IntPtr sfVulkan_getFunction(string name);

        [DllImport(CSFML.window, CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
        private unsafe static extern IntPtr* sfVulkan_getGraphicsRequiredInstanceExtensions(out UIntPtr count);
        #endregion
    }
}