stgsharp/源代码/StgSharp/Graphics/GL/GL.cs

using StgSharp.Math;
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;

namespace StgSharp.Graphics
{
    public static unsafe partial class GL
    {
        internal unsafe static GLcontext* context;
        internal unsafe static GLFWapi glfw;

        public static unsafe IntPtr LoadGLfunc(string name)
        {
            IntPtr ret = InternalIO.glfw_GetProcAddress(name);
            if (ret == default)
            {
                InternalIO.InternalWriteLog(
                    $"Cannot load OpenGL api called {name}, this api may not exist or supported.",
                    LogType.Warning);
            }
            return ret;
        }

        /// <summary>
        /// sets the framebuffer resize callback of the specified <see cref="Form"/>,
        ///which is called when the framebuffer of the specified <see cref="Form"/> is resized.
        /// </summary>
        /// <param name="form">The Form instance to be controlled</param>
        /// <param name="handler">Method hadler </param>
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static unsafe void SetFrameBufferSizeCallback(Form form, FrameBufferSizeHadler handler)
        {
            InternalIO.glfw_SetFramebufferSizeCallback(form.windowID, handler);
        }


        /// <summary>
        /// Call glClearColor in OpenGL
        /// specifies the red, green, blue, and alpha values used by glClear to clear the color buffers. 
        /// Values specified by glClearColor are clamped to the range [0,1]
        /// </summary>
        /// <param name="R">Specify the red values used when the color buffers are cleared.</param>
        /// <param name="G">Specify the red values used when the color buffers are cleared.</param>
        /// <param name="B">Specify the red values used when the color buffers are cleared.</param>
        /// <param name="A">Specify the red values used when the color buffers are cleared.</param>
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static unsafe void ClearColor(float R, float G, float B, float A)
        {
            ClearColor(R, G, B, A);
        }

        /// <summary>
        /// Conpile the provided shader code in string form.
        /// </summary>
        /// <param name="shaderCode">A string represent the shader's code</param>
        /// <param name="shaderType">An <see cref="ShaderType"/> enum represent the type of the shader to
        /// conpile, including vertex shader and fragment shader.</param>
        /// <returns>An uint value as the only mark of conpiled shader</returns>
        public static unsafe uint CompileShader(string shaderCode, ShaderType shaderType)
        {
            uint shaderID;
            shaderCode += '\0';
            byte[] buffer = Encoding.ASCII.GetBytes(shaderCode);
            fixed (byte* data = &buffer[0])
            {
                shaderID = InternalIO.InternalLoadShaderCode(data, (int)shaderType);
            }
            if (shaderID == 0)
            {
                IntPtr logPtr = InternalIO.InternalReadLog();
                string log;
                try
                {
                    byte[] logByte = new byte[512];
                    Marshal.Copy(logPtr, logByte, 0, 512);
                    log = Encoding.UTF8.GetString(logByte);
                    log = log.Replace("\0", "");

                    bool isUseful = false;
                    foreach (char item in log)
                    {
                        if (!char.IsControl(item))
                        {
                            isUseful = true; break;
                        }
                    }
                    if (!isUseful)
                    {
                        throw new Exception();
                    }
                }
                catch (Exception)
                {
                    log = "Failed to compile shader.\nFailed to get GLSL compiler log";

                }

                InternalIO.InternalWriteLog(log, LogType.Error);

            }
            return shaderID;
        }

        /// <summary>
        /// Creates a form and its associated 
        /// </summary>
        /// <param name="width">Required width</param>
        /// <param name="height">Required width</param>
        /// <param name="tittle">Tittle of the window </param>
        /// <param name="monitor"></param>
        /// <param name="share"></param>
        /// <returns>The instance of created form</returns>
        /// <exception cref="Exception"></exception>
        public static unsafe Form CreateWindow(
            int width, int height, string tittle, IntPtr monitor, Form share)
        {
            byte[] tittleBytes = Encoding.UTF8.GetBytes(tittle);
            IntPtr windowPtr;
            if (share == null)
            {
                windowPtr = InternalIO.glfw_CreateWindow(
                    width, height, tittleBytes, monitor, IntPtr.Zero);
            }
            else
            {
                windowPtr = InternalIO.glfw_CreateWindow(
                    width, height, tittleBytes, monitor, share.windowID);
            }

            if ((long)windowPtr == -1 || (long)windowPtr == -2)
            {
                throw new Exception("Cannot create window instance!");
            }
            else
            {
                Form form = new Form();
                form.Size = new Vec2d(width, height);
                form.windowID = windowPtr;
                return form;
            }
        }


        public static unsafe uint CreatGraphicProgram()
        {
            return glCreateProgram();
        }


        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static unsafe void DrawElements(GepmetryType mode, int count, Type type, IntPtr ptr)
        {
            uint a;
            switch (type.Name)
            {
                case "UInt32":
                    a = GLconst.UNSIGNED_INT;
                    break;
                case "UInt16":
                    a = GLconst.UNSIGNED_SHORT;
                    break;
                case "Byte":
                    a = GLconst.UNSIGNED_BYTE;
                    break;
                default:
                    InternalIO.InternalWriteLog(
                        $"Parameter error in parameter {nameof(type)} method DrawElements. " +
                        $"Only {typeof(uint).Name},{typeof(ushort).Name},{typeof(byte).Name} types are suporrted.",
                        LogType.Error);
                    return;
            }
            glDrawElements((uint)mode, count, a, (void*)ptr);
        }


        public static unsafe IntPtr GetProcAddress(string name)
        {
            IntPtr ret = InternalIO.glfw_GetProcAddress(name);
            return ret;
        }


        public static unsafe bool GetWindowShouldClose(Form form)
        {
            return InternalIO.glfw_WindowShouldClose(form.windowID) == 0;
        }


        public static unsafe void GLswapBuffers(Form form)
        {
            if (form.windowID == IntPtr.Zero)
            {
                return;
            }
            InternalIO.glfw_SwapBuffers(form.windowID);
        }


        public static unsafe void MakeContexCurrent(Form form)
        {
            if (form.windowID == IntPtr.Zero)
            {
                return;
            }
            InternalIO.glfw_MakeContextCurrent(form.windowID);
        }


        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static unsafe void SetBufferData<T>(BufferType bufferType, T bufferData, BufferUsage usage) where T : IMat
        {
            int size = sizeof(T);
            glBufferData(
                (uint)bufferType,
                size,
                &bufferData,
                (uint)usage);
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static unsafe void ClearGraphicError()
        {
            while (glGetError() != 0) { }
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static unsafe void GetGraphicError()
        {
            string error = null;
            uint code = glGetError();
            while (code != 0)
            {
                error += $"OpenGL error {code}\n";
            }
            try
            {
                if (error != null)
                {
                    throw new Exception();
                }
            }
            catch (Exception ex)
            {
                /*
                InternalIO.InternalWriteLog(
                    error + ex.StackTrace,
                    LogType.Error
                    );
                /**/
            }
            return;
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static unsafe void SetBufferData<T>(BufferType bufferType, T[] bufferArray, BufferUsage usage) where T : struct, IConvertible
        {

            int size = bufferArray.Length * Marshal.SizeOf(typeof(T));

            fixed (void* bufferPtr = &bufferArray[0])
                glBufferData(
                    (uint)bufferType,
                    size,
                    bufferPtr,
                    (uint)usage);
        }
    }

    [StructLayout(LayoutKind.Sequential)]
    public unsafe struct GLcontext
    {
        IntPtr usrPtr;

        #region platformSig

        internal int VERSION_1_0;
        internal int VERSION_1_1;
        internal int VERSION_1_2;
        internal int VERSION_1_3;
        internal int VERSION_1_4;
        internal int VERSION_1_5;
        internal int VERSION_2_0;
        internal int VERSION_2_1;
        internal int VERSION_3_0;
        internal int VERSION_3_1;
        internal int VERSION_3_2;
        internal int VERSION_3_3;
        internal int VERSION_4_0;
        internal int VERSION_4_1;
        internal int VERSION_4_2;
        internal int VERSION_4_3;
        internal int VERSION_4_4;
        internal int VERSION_4_5;
        internal int VERSION_4_6;
        internal int _3DFX_multisample;
        internal int _3DFX_tbuffer;
        internal int _3DFX_texture_compression_FXT1;
        internal int AMD_blend_minmax_factor;
        internal int AMD_conservative_depth;
        internal int AMD_debug_output;
        internal int AMD_depth_clamp_separate;
        internal int AMD_draw_buffers_blend;
        internal int AMD_framebuffer_multisample_advanced;
        internal int AMD_framebuffer_sample_positions;
        internal int AMD_gcn_shader;
        internal int AMD_gpu_shader_half_float;
        internal int AMD_gpu_shader_int16;
        internal int AMD_gpu_shader_int64;
        internal int AMD_interleaved_elements;
        internal int AMD_multi_draw_indirect;
        internal int AMD_name_gen_delete;
        internal int AMD_occlusion_query_event;
        internal int AMD_performance_monitor;
        internal int AMD_pinned_memory;
        internal int AMD_query_buffer_object;
        internal int AMD_sample_positions;
        internal int AMD_seamless_cubemap_per_texture;
        internal int AMD_shader_atomic_counter_ops;
        internal int AMD_shader_ballot;
        internal int AMD_shader_explicit_vertex_parameter;
        internal int AMD_shader_gpu_shader_half_float_fetch;
        internal int AMD_shader_image_load_store_lod;
        internal int AMD_shader_stencil_export;
        internal int AMD_shader_trinary_minmax;
        internal int AMD_sparse_texture;
        internal int AMD_stencil_operation_extended;
        internal int AMD_texture_gather_bias_lod;
        internal int AMD_texture_texture4;
        internal int AMD_transform_feedback3_lines_triangles;
        internal int AMD_transform_feedback4;
        internal int AMD_vertex_shader_layer;
        internal int AMD_vertex_shader_tessellator;
        internal int AMD_vertex_shader_viewport_index;
        internal int APPLE_aux_depth_stencil;
        internal int APPLE_client_storage;
        internal int APPLE_element_array;
        internal int APPLE_fence;
        internal int APPLE_float_pixels;
        internal int APPLE_flush_buffer_range;
        internal int APPLE_object_purgeable;
        internal int APPLE_rgb_422;
        internal int APPLE_row_bytes;
        internal int APPLE_specular_vector;
        internal int APPLE_texture_range;
        internal int APPLE_transform_hint;
        internal int APPLE_vertex_array_object;
        internal int APPLE_vertex_array_range;
        internal int APPLE_vertex_program_evaluators;
        internal int APPLE_ycbcr_422;
        internal int ARB_ES2_compatibility;
        internal int ARB_ES3_1_compatibility;
        internal int ARB_ES3_2_compatibility;
        internal int ARB_ES3_compatibility;
        internal int ARB_arrays_of_arrays;
        internal int ARB_base_instance;
        internal int ARB_bindless_texture;
        internal int ARB_blend_func_extended;
        internal int ARB_buffer_storage;
        internal int ARB_cl_event;
        internal int ARB_clear_buffer_object;
        internal int ARB_clear_texture;
        internal int ARB_clip_control;
        internal int ARB_color_buffer_float;
        internal int ARB_compatibility;
        internal int ARB_compressed_texture_pixel_storage;
        internal int ARB_compute_shader;
        internal int ARB_compute_variable_group_size;
        internal int ARB_conditional_render_inverted;
        internal int ARB_conservative_depth;
        internal int ARB_copy_buffer;
        internal int ARB_copy_image;
        internal int ARB_cull_distance;
        internal int ARB_debug_output;
        internal int ARB_depth_buffer_float;
        internal int ARB_depth_clamp;
        internal int ARB_depth_texture;
        internal int ARB_derivative_control;
        internal int ARB_direct_state_access;
        internal int ARB_draw_buffers;
        internal int ARB_draw_buffers_blend;
        internal int ARB_draw_elements_base_vertex;
        internal int ARB_draw_indirect;
        internal int ARB_draw_instanced;
        internal int ARB_enhanced_layouts;
        internal int ARB_explicit_attrib_location;
        internal int ARB_explicit_uniform_location;
        internal int ARB_fragment_coord_conventions;
        internal int ARB_fragment_layer_viewport;
        internal int ARB_fragment_program;
        internal int ARB_fragment_program_shadow;
        internal int ARB_fragment_shader;
        internal int ARB_fragment_shader_interlock;
        internal int ARB_framebuffer_no_attachments;
        internal int ARB_framebuffer_object;
        internal int ARB_framebuffer_sRGB;
        internal int ARB_geometry_shader4;
        internal int ARB_get_program_binary;
        internal int ARB_get_texture_sub_image;
        internal int ARB_gl_spirv;
        internal int ARB_gpu_shader5;
        internal int ARB_gpu_shader_fp64;
        internal int ARB_gpu_shader_int64;
        internal int ARB_half_float_pixel;
        internal int ARB_half_float_vertex;
        internal int ARB_imaging;
        internal int ARB_indirect_parameters;
        internal int ARB_instanced_arrays;
        internal int ARB_internalformat_query;
        internal int ARB_internalformat_query2;
        internal int ARB_invalidate_subdata;
        internal int ARB_map_buffer_alignment;
        internal int ARB_map_buffer_range;
        internal int ARB_matrix_palette;
        internal int ARB_multi_bind;
        internal int ARB_multi_draw_indirect;
        internal int ARB_multisample;
        internal int ARB_multitexture;
        internal int ARB_occlusion_query;
        internal int ARB_occlusion_query2;
        internal int ARB_parallel_shader_compile;
        internal int ARB_pipeline_statistics_query;
        internal int ARB_pixel_buffer_object;
        internal int ARB_point_parameters;
        internal int ARB_point_sprite;
        internal int ARB_polygon_offset_clamp;
        internal int ARB_post_depth_coverage;
        internal int ARB_program_interface_query;
        internal int ARB_provoking_vertex;
        internal int ARB_query_buffer_object;
        internal int ARB_robust_buffer_access_behavior;
        internal int ARB_robustness;
        internal int ARB_robustness_isolation;
        internal int ARB_sample_locations;
        internal int ARB_sample_shading;
        internal int ARB_sampler_objects;
        internal int ARB_seamless_cube_map;
        internal int ARB_seamless_cubemap_per_texture;
        internal int ARB_separate_shader_objects;
        internal int ARB_shader_atomic_counter_ops;
        internal int ARB_shader_atomic_counters;
        internal int ARB_shader_ballot;
        internal int ARB_shader_bit_encoding;
        internal int ARB_shader_clock;
        internal int ARB_shader_draw_parameters;
        internal int ARB_shader_group_vote;
        internal int ARB_shader_image_load_store;
        internal int ARB_shader_image_size;
        internal int ARB_shader_objects;
        internal int ARB_shader_precision;
        internal int ARB_shader_stencil_export;
        internal int ARB_shader_storage_buffer_object;
        internal int ARB_shader_subroutine;
        internal int ARB_shader_texture_image_samples;
        internal int ARB_shader_texture_lod;
        internal int ARB_shader_viewport_layer_array;
        internal int ARB_shading_language_100;
        internal int ARB_shading_language_420pack;
        internal int ARB_shading_language_include;
        internal int ARB_shading_language_packing;
        internal int ARB_shadow;
        internal int ARB_shadow_ambient;
        internal int ARB_sparse_buffer;
        internal int ARB_sparse_texture;
        internal int ARB_sparse_texture2;
        internal int ARB_sparse_texture_clamp;
        internal int ARB_spirv_extensions;
        internal int ARB_stencil_texturing;
        internal int ARB_sync;
        internal int ARB_tessellation_shader;
        internal int ARB_texture_barrier;
        internal int ARB_texture_border_clamp;
        internal int ARB_texture_buffer_object;
        internal int ARB_texture_buffer_object_rgb32;
        internal int ARB_texture_buffer_range;
        internal int ARB_texture_compression;
        internal int ARB_texture_compression_bptc;
        internal int ARB_texture_compression_rgtc;
        internal int ARB_texture_cube_map;
        internal int ARB_texture_cube_map_array;
        internal int ARB_texture_env_add;
        internal int ARB_texture_env_combine;
        internal int ARB_texture_env_crossbar;
        internal int ARB_texture_env_dot3;
        internal int ARB_texture_filter_anisotropic;
        internal int ARB_texture_filter_minmax;
        internal int ARB_texture_float;
        internal int ARB_texture_gather;
        internal int ARB_texture_mirror_clamp_to_edge;
        internal int ARB_texture_mirrored_repeat;
        internal int ARB_texture_multisample;
        internal int ARB_texture_non_power_of_two;
        internal int ARB_texture_query_levels;
        internal int ARB_texture_query_lod;
        internal int ARB_texture_rectangle;
        internal int ARB_texture_rg;
        internal int ARB_texture_rgb10_a2ui;
        internal int ARB_texture_stencil8;
        internal int ARB_texture_storage;
        internal int ARB_texture_storage_multisample;
        internal int ARB_texture_swizzle;
        internal int ARB_texture_view;
        internal int ARB_timer_query;
        internal int ARB_transform_feedback2;
        internal int ARB_transform_feedback3;
        internal int ARB_transform_feedback_instanced;
        internal int ARB_transform_feedback_overflow_query;
        internal int ARB_transpose_matrix;
        internal int ARB_uniform_buffer_object;
        internal int ARB_vertex_array_bgra;
        internal int ARB_vertex_array_object;
        internal int ARB_vertex_attrib_64bit;
        internal int ARB_vertex_attrib_binding;
        internal int ARB_vertex_blend;
        internal int ARB_vertex_buffer_object;
        internal int ARB_vertex_program;
        internal int ARB_vertex_shader;
        internal int ARB_vertex_type_10f_11f_11f_rev;
        internal int ARB_vertex_type_2_10_10_10_rev;
        internal int ARB_viewport_array;
        internal int ARB_window_pos;
        internal int ATI_draw_buffers;
        internal int ATI_element_array;
        internal int ATI_envmap_bumpmap;
        internal int ATI_fragment_shader;
        internal int ATI_map_object_buffer;
        internal int ATI_meminfo;
        internal int ATI_pixel_format_float;
        internal int ATI_pn_triangles;
        internal int ATI_separate_stencil;
        internal int ATI_text_fragment_shader;
        internal int ATI_texture_env_combine3;
        internal int ATI_texture_float;
        internal int ATI_texture_mirror_once;
        internal int ATI_vertex_array_object;
        internal int ATI_vertex_attrib_array_object;
        internal int ATI_vertex_streams;
        internal int EXT_422_pixels;
        internal int EXT_EGL_image_storage;
        internal int EXT_EGL_sync;
        internal int EXT_abgr;
        internal int EXT_bgra;
        internal int EXT_bindable_uniform;
        internal int EXT_blend_color;
        internal int EXT_blend_equation_separate;
        internal int EXT_blend_func_separate;
        internal int EXT_blend_logic_op;
        internal int EXT_blend_minmax;
        internal int EXT_blend_subtract;
        internal int EXT_clip_volume_hint;
        internal int EXT_cmyka;
        internal int EXT_color_subtable;
        internal int EXT_compiled_vertex_array;
        internal int EXT_convolution;
        internal int EXT_coordinate_frame;
        internal int EXT_copy_texture;
        internal int EXT_cull_vertex;
        internal int EXT_debug_label;
        internal int EXT_debug_marker;
        internal int EXT_depth_bounds_test;
        internal int EXT_direct_state_access;
        internal int EXT_draw_buffers2;
        internal int EXT_draw_instanced;
        internal int EXT_draw_range_elements;
        internal int EXT_external_buffer;
        internal int EXT_fog_coord;
        internal int EXT_framebuffer_blit;
        internal int EXT_framebuffer_blit_layers;
        internal int EXT_framebuffer_multisample;
        internal int EXT_framebuffer_multisample_blit_scaled;
        internal int EXT_framebuffer_object;
        internal int EXT_framebuffer_sRGB;
        internal int EXT_geometry_shader4;
        internal int EXT_gpu_program_parameters;
        internal int EXT_gpu_shader4;
        internal int EXT_histogram;
        internal int EXT_index_array_formats;
        internal int EXT_index_func;
        internal int EXT_index_material;
        internal int EXT_index_texture;
        internal int EXT_light_texture;
        internal int EXT_memory_object;
        internal int EXT_memory_object_fd;
        internal int EXT_memory_object_win32;
        internal int EXT_misc_attribute;
        internal int EXT_multi_draw_arrays;
        internal int EXT_multisample;
        internal int EXT_multiview_tessellation_geometry_shader;
        internal int EXT_multiview_texture_multisample;
        internal int EXT_multiview_timer_query;
        internal int EXT_packed_depth_stencil;
        internal int EXT_packed_float;
        internal int EXT_packed_pixels;
        internal int EXT_paletted_texture;
        internal int EXT_pixel_buffer_object;
        internal int EXT_pixel_transform;
        internal int EXT_pixel_transform_color_table;
        internal int EXT_point_parameters;
        internal int EXT_polygon_offset;
        internal int EXT_polygon_offset_clamp;
        internal int EXT_post_depth_coverage;
        internal int EXT_provoking_vertex;
        internal int EXT_raster_multisample;
        internal int EXT_rescale_normal;
        internal int EXT_secondary_color;
        internal int EXT_semaphore;
        internal int EXT_semaphore_fd;
        internal int EXT_semaphore_win32;
        internal int EXT_separate_shader_objects;
        internal int EXT_separate_specular_color;
        internal int EXT_shader_framebuffer_fetch;
        internal int EXT_shader_framebuffer_fetch_non_coherent;
        internal int EXT_shader_image_load_formatted;
        internal int EXT_shader_image_load_store;
        internal int EXT_shader_integer_mix;
        internal int EXT_shader_samples_identical;
        internal int EXT_shadow_funcs;
        internal int EXT_shared_texture_palette;
        internal int EXT_sparse_texture2;
        internal int EXT_stencil_clear_tag;
        internal int EXT_stencil_two_side;
        internal int EXT_stencil_wrap;
        internal int EXT_subtexture;
        internal int EXT_texture;
        internal int EXT_texture3D;
        internal int EXT_texture_array;
        internal int EXT_texture_buffer_object;
        internal int EXT_texture_compression_latc;
        internal int EXT_texture_compression_rgtc;
        internal int EXT_texture_compression_s3tc;
        internal int EXT_texture_cube_map;
        internal int EXT_texture_env_add;
        internal int EXT_texture_env_combine;
        internal int EXT_texture_env_dot3;
        internal int EXT_texture_filter_anisotropic;
        internal int EXT_texture_filter_minmax;
        internal int EXT_texture_integer;
        internal int EXT_texture_lod_bias;
        internal int EXT_texture_mirror_clamp;
        internal int EXT_texture_object;
        internal int EXT_texture_perturb_normal;
        internal int EXT_texture_sRGB;
        internal int EXT_texture_sRGB_R8;
        internal int EXT_texture_sRGB_RG8;
        internal int EXT_texture_sRGB_decode;
        internal int EXT_texture_shadow_lod;
        internal int EXT_texture_shared_exponent;
        internal int EXT_texture_snorm;
        internal int EXT_texture_storage;
        internal int EXT_texture_swizzle;
        internal int EXT_timer_query;
        internal int EXT_transform_feedback;
        internal int EXT_vertex_array;
        internal int EXT_vertex_array_bgra;
        internal int EXT_vertex_attrib_64bit;
        internal int EXT_vertex_shader;
        internal int EXT_vertex_weighting;
        internal int EXT_win32_keyed_mutex;
        internal int EXT_window_rectangles;
        internal int EXT_x11_sync_object;
        internal int GREMEDY_frame_terminator;
        internal int GREMEDY_string_marker;
        internal int HP_convolution_border_modes;
        internal int HP_image_transform;
        internal int HP_occlusion_test;
        internal int HP_texture_lighting;
        internal int IBM_cull_vertex;
        internal int IBM_multimode_draw_arrays;
        internal int IBM_rasterpos_clip;
        internal int IBM_static_data;
        internal int IBM_texture_mirrored_repeat;
        internal int IBM_vertex_array_lists;
        internal int INGR_blend_func_separate;
        internal int INGR_color_clamp;
        internal int INGR_interlace_read;
        internal int INTEL_blackhole_render;
        internal int INTEL_conservative_rasterization;
        internal int INTEL_fragment_shader_ordering;
        internal int INTEL_framebuffer_CMAA;
        internal int INTEL_map_texture;
        internal int INTEL_parallel_arrays;
        internal int INTEL_performance_query;
        internal int KHR_blend_equation_advanced;
        internal int KHR_blend_equation_advanced_coherent;
        internal int KHR_context_flush_control;
        internal int KHR_debug;
        internal int KHR_no_error;
        internal int KHR_parallel_shader_compile;
        internal int KHR_robust_buffer_access_behavior;
        internal int KHR_robustness;
        internal int KHR_shader_subgroup;
        internal int KHR_texture_compression_astc_hdr;
        internal int KHR_texture_compression_astc_ldr;
        internal int KHR_texture_compression_astc_sliced_3d;
        internal int MESAX_texture_stack;
        internal int MESA_framebuffer_flip_x;
        internal int MESA_framebuffer_flip_y;
        internal int MESA_framebuffer_swap_xy;
        internal int MESA_pack_invert;
        internal int MESA_program_binary_formats;
        internal int MESA_resize_buffers;
        internal int MESA_shader_integer_functions;
        internal int MESA_tile_raster_order;
        internal int MESA_window_pos;
        internal int MESA_ycbcr_texture;
        internal int NVX_blend_equation_advanced_multi_draw_buffers;
        internal int NVX_conditional_render;
        internal int NVX_gpu_memory_info;
        internal int NVX_gpu_multicast2;
        internal int NVX_linked_gpu_multicast;
        internal int NVX_progress_fence;
        internal int NV_alpha_to_coverage_dither_control;
        internal int NV_bindless_multi_draw_indirect;
        internal int NV_bindless_multi_draw_indirect_count;
        internal int NV_bindless_texture;
        internal int NV_blend_equation_advanced;
        internal int NV_blend_equation_advanced_coherent;
        internal int NV_blend_minmax_factor;
        internal int NV_blend_square;
        internal int NV_clip_space_w_scaling;
        internal int NV_command_list;
        internal int NV_compute_program5;
        internal int NV_compute_shader_derivatives;
        internal int NV_conditional_render;
        internal int NV_conservative_raster;
        internal int NV_conservative_raster_dilate;
        internal int NV_conservative_raster_pre_snap;
        internal int NV_conservative_raster_pre_snap_triangles;
        internal int NV_conservative_raster_underestimation;
        internal int NV_copy_depth_to_color;
        internal int NV_copy_image;
        internal int NV_deep_texture3D;
        internal int NV_depth_buffer_float;
        internal int NV_depth_clamp;
        internal int NV_draw_texture;
        internal int NV_draw_vulkan_image;
        internal int NV_evaluators;
        internal int NV_explicit_multisample;
        internal int NV_fence;
        internal int NV_fill_rectangle;
        internal int NV_float_buffer;
        internal int NV_fog_distance;
        internal int NV_fragment_coverage_to_color;
        internal int NV_fragment_program;
        internal int NV_fragment_program2;
        internal int NV_fragment_program4;
        internal int NV_fragment_program_option;
        internal int NV_fragment_shader_barycentric;
        internal int NV_fragment_shader_interlock;
        internal int NV_framebuffer_mixed_samples;
        internal int NV_framebuffer_multisample_coverage;
        internal int NV_geometry_program4;
        internal int NV_geometry_shader4;
        internal int NV_geometry_shader_passthrough;
        internal int NV_gpu_multicast;
        internal int NV_gpu_program4;
        internal int NV_gpu_program5;
        internal int NV_gpu_program5_mem_extended;
        internal int NV_gpu_shader5;
        internal int NV_half_float;
        internal int NV_internalformat_sample_query;
        internal int NV_light_max_exponent;
        internal int NV_memory_attachment;
        internal int NV_memory_object_sparse;
        internal int NV_mesh_shader;
        internal int NV_multisample_coverage;
        internal int NV_multisample_filter_hint;
        internal int NV_occlusion_query;
        internal int NV_packed_depth_stencil;
        internal int NV_parameter_buffer_object;
        internal int NV_parameter_buffer_object2;
        internal int NV_path_rendering;
        internal int NV_path_rendering_shared_edge;
        internal int NV_pixel_data_range;
        internal int NV_point_sprite;
        internal int NV_present_video;
        internal int NV_primitive_restart;
        internal int NV_primitive_shading_rate;
        internal int NV_query_resource;
        internal int NV_query_resource_tag;
        internal int NV_register_combiners;
        internal int NV_register_combiners2;
        internal int NV_representative_fragment_test;
        internal int NV_robustness_video_memory_purge;
        internal int NV_sample_locations;
        internal int NV_sample_mask_override_coverage;
        internal int NV_scissor_exclusive;
        internal int NV_shader_atomic_counters;
        internal int NV_shader_atomic_float;
        internal int NV_shader_atomic_float64;
        internal int NV_shader_atomic_fp16_vector;
        internal int NV_shader_atomic_int64;
        internal int NV_shader_buffer_load;
        internal int NV_shader_buffer_store;
        internal int NV_shader_storage_buffer_object;
        internal int NV_shader_subgroup_partitioned;
        internal int NV_shader_texture_footprint;
        internal int NV_shader_thread_group;
        internal int NV_shader_thread_shuffle;
        internal int NV_shading_rate_image;
        internal int NV_stereo_view_rendering;
        internal int NV_tessellation_program5;
        internal int NV_texgen_emboss;
        internal int NV_texgen_reflection;
        internal int NV_texture_barrier;
        internal int NV_texture_compression_vtc;
        internal int NV_texture_env_combine4;
        internal int NV_texture_expand_normal;
        internal int NV_texture_multisample;
        internal int NV_texture_rectangle;
        internal int NV_texture_rectangle_compressed;
        internal int NV_texture_shader;
        internal int NV_texture_shader2;
        internal int NV_texture_shader3;
        internal int NV_timeline_semaphore;
        internal int NV_transform_feedback;
        internal int NV_transform_feedback2;
        internal int NV_uniform_buffer_std430_layout;
        internal int NV_uniform_buffer_unified_memory;
        internal int NV_vdpau_interop;
        internal int NV_vdpau_interop2;
        internal int NV_vertex_array_range;
        internal int NV_vertex_array_range2;
        internal int NV_vertex_attrib_integer_64bit;
        internal int NV_vertex_buffer_unified_memory;
        internal int NV_vertex_program;
        internal int NV_vertex_program1_1;
        internal int NV_vertex_program2;
        internal int NV_vertex_program2_option;
        internal int NV_vertex_program3;
        internal int NV_vertex_program4;
        internal int NV_video_capture;
        internal int NV_viewport_array2;
        internal int NV_viewport_swizzle;
        internal int OES_byte_coordinates;
        internal int OES_compressed_paletted_texture;
        internal int OES_fixed_point;
        internal int OES_query_matrix;
        internal int OES_read_format;
        internal int OES_single_precision;
        internal int OML_interlace;
        internal int OML_resample;
        internal int OML_subsample;
        internal int OVR_multiview;
        internal int OVR_multiview2;
        internal int PGI_misc_hints;
        internal int PGI_vertex_hints;
        internal int REND_screen_coordinates;
        internal int S3_s3tc;
        internal int SGIS_detail_texture;
        internal int SGIS_fog_function;
        internal int SGIS_generate_mipmap;
        internal int SGIS_multisample;
        internal int SGIS_pixel_texture;
        internal int SGIS_point_line_texgen;
        internal int SGIS_point_parameters;
        internal int SGIS_sharpen_texture;
        internal int SGIS_texture4D;
        internal int SGIS_texture_border_clamp;
        internal int SGIS_texture_color_mask;
        internal int SGIS_texture_edge_clamp;
        internal int SGIS_texture_filter4;
        internal int SGIS_texture_lod;
        internal int SGIS_texture_select;
        internal int SGIX_async;
        internal int SGIX_async_histogram;
        internal int SGIX_async_pixel;
        internal int SGIX_blend_alpha_minmax;
        internal int SGIX_calligraphic_fragment;
        internal int SGIX_clipmap;
        internal int SGIX_convolution_accuracy;
        internal int SGIX_depth_pass_instrument;
        internal int SGIX_depth_texture;
        internal int SGIX_flush_raster;
        internal int SGIX_fog_offset;
        internal int SGIX_fragment_lighting;
        internal int SGIX_framezoom;
        internal int SGIX_igloo_interface;
        internal int SGIX_instruments;
        internal int SGIX_interlace;
        internal int SGIX_ir_instrument1;
        internal int SGIX_list_priority;
        internal int SGIX_pixel_texture;
        internal int SGIX_pixel_tiles;
        internal int SGIX_polynomial_ffd;
        internal int SGIX_reference_plane;
        internal int SGIX_resample;
        internal int SGIX_scalebias_hint;
        internal int SGIX_shadow;
        internal int SGIX_shadow_ambient;
        internal int SGIX_sprite;
        internal int SGIX_subsample;
        internal int SGIX_tag_sample_buffer;
        internal int SGIX_texture_add_env;
        internal int SGIX_texture_coordinate_clamp;
        internal int SGIX_texture_lod_bias;
        internal int SGIX_texture_multi_buffer;
        internal int SGIX_texture_scale_bias;
        internal int SGIX_vertex_preclip;
        internal int SGIX_ycrcb;
        internal int SGIX_ycrcb_subsample;
        internal int SGIX_ycrcba;
        internal int SGI_color_matrix;
        internal int SGI_color_table;
        internal int SGI_texture_color_table;
        internal int SUNX_constant_data;
        internal int SUN_convolution_border_modes;
        internal int SUN_global_alpha;
        internal int SUN_mesh_array;
        internal int SUN_slice_accum;
        internal int SUN_triangle_list;
        internal int SUN_vertex;
        internal int WIN_phong_shading;
        internal int WIN_specular_fog;

        #endregion

        #region glapi

        internal IntPtr AccumxOESptr;
        internal IntPtr AcquireKeyedMutexWin32EXTptr;
        internal IntPtr ActiveProgramEXTptr;
        internal IntPtr ActiveShaderProgramptr;
        internal IntPtr ActiveStencilFaceEXTptr;
        internal IntPtr ActiveTextureptr;
        internal IntPtr ActiveTextureARBptr;
        internal IntPtr ActiveVaryingNVptr;
        internal IntPtr AlphaFragmentOp1ATIptr;
        internal IntPtr AlphaFragmentOp2ATIptr;
        internal IntPtr AlphaFragmentOp3ATIptr;
        internal IntPtr AlphaFuncxOESptr;
        internal IntPtr AlphaToCoverageDitherControlNVptr;
        internal IntPtr ApplyFramebufferAttachmentCMAAINTELptr;
        internal IntPtr ApplyTextureEXTptr;
        internal IntPtr AreProgramsResidentNVptr;
        internal IntPtr AreTexturesResidentEXTptr;
        internal IntPtr ArrayElementEXTptr;
        internal IntPtr ArrayObjectATIptr;
        internal IntPtr AsyncCopyBufferSubDataNVXptr;
        internal IntPtr AsyncCopyImageSubDataNVXptr;
        internal IntPtr AsyncMarkerSGIXptr;
        internal IntPtr AttachObjectARBptr;
        internal IntPtr AttachShaderptr;
        internal IntPtr BeginConditionalRenderptr;
        internal IntPtr BeginConditionalRenderNVptr;
        internal IntPtr BeginConditionalRenderNVXptr;
        internal IntPtr BeginFragmentShaderATIptr;
        internal IntPtr BeginOcclusionQueryNVptr;
        internal IntPtr BeginPerfMonitorAMDptr;
        internal IntPtr BeginPerfQueryINTELptr;
        internal IntPtr BeginQueryptr;
        internal IntPtr BeginQueryARBptr;
        internal IntPtr BeginQueryIndexedptr;
        internal IntPtr BeginTransformFeedbackptr;
        internal IntPtr BeginTransformFeedbackEXTptr;
        internal IntPtr BeginTransformFeedbackNVptr;
        internal IntPtr BeginVertexShaderEXTptr;
        internal IntPtr BeginVideoCaptureNVptr;
        internal IntPtr BindAttribLocationptr;
        internal IntPtr BindAttribLocationARBptr;
        internal IntPtr BindBufferptr;
        internal IntPtr BindBufferARBptr;
        internal IntPtr BindBufferBaseptr;
        internal IntPtr BindBufferBaseEXTptr;
        internal IntPtr BindBufferBaseNVptr;
        internal IntPtr BindBufferOffsetEXTptr;
        internal IntPtr BindBufferOffsetNVptr;
        internal IntPtr BindBufferRangeptr;
        internal IntPtr BindBufferRangeEXTptr;
        internal IntPtr BindBufferRangeNVptr;
        internal IntPtr BindBuffersBaseptr;
        internal IntPtr BindBuffersRangeptr;
        internal IntPtr BindFragDataLocationptr;
        internal IntPtr BindFragDataLocationEXTptr;
        internal IntPtr BindFragDataLocationIndexedptr;
        internal IntPtr BindFragmentShaderATIptr;
        internal IntPtr BindFramebufferptr;
        internal IntPtr BindFramebufferEXTptr;
        internal IntPtr BindImageTextureptr;
        internal IntPtr BindImageTextureEXTptr;
        internal IntPtr BindImageTexturesptr;
        internal IntPtr BindLightParameterEXTptr;
        internal IntPtr BindMaterialParameterEXTptr;
        internal IntPtr BindMultiTextureEXTptr;
        internal IntPtr BindParameterEXTptr;
        internal IntPtr BindProgramARBptr;
        internal IntPtr BindProgramNVptr;
        internal IntPtr BindProgramPipelineptr;
        internal IntPtr BindRenderbufferptr;
        internal IntPtr BindRenderbufferEXTptr;
        internal IntPtr BindSamplerptr;
        internal IntPtr BindSamplersptr;
        internal IntPtr BindShadingRateImageNVptr;
        internal IntPtr BindTexGenParameterEXTptr;
        internal IntPtr BindTextureptr;
        internal IntPtr BindTextureEXTptr;
        internal IntPtr BindTextureUnitptr;
        internal IntPtr BindTextureUnitParameterEXTptr;
        internal IntPtr BindTexturesptr;
        internal IntPtr BindTransformFeedbackptr;
        internal IntPtr BindTransformFeedbackNVptr;
        internal IntPtr BindVertexArrayptr;
        internal IntPtr BindVertexArrayAPPLEptr;
        internal IntPtr BindVertexBufferptr;
        internal IntPtr BindVertexBuffersptr;
        internal IntPtr BindVertexShaderEXTptr;
        internal IntPtr BindVideoCaptureStreamBufferNVptr;
        internal IntPtr BindVideoCaptureStreamTextureNVptr;
        internal IntPtr Binormal3bEXTptr;
        internal IntPtr Binormal3bvEXTptr;
        internal IntPtr Binormal3dEXTptr;
        internal IntPtr Binormal3dvEXTptr;
        internal IntPtr Binormal3fEXTptr;
        internal IntPtr Binormal3fvEXTptr;
        internal IntPtr Binormal3iEXTptr;
        internal IntPtr Binormal3ivEXTptr;
        internal IntPtr Binormal3sEXTptr;
        internal IntPtr Binormal3svEXTptr;
        internal IntPtr BinormalPointerEXTptr;
        internal IntPtr BitmapxOESptr;
        internal IntPtr BlendBarrierKHRptr;
        internal IntPtr BlendBarrierNVptr;
        internal IntPtr BlendColorptr;
        internal IntPtr BlendColorEXTptr;
        internal IntPtr BlendColorxOESptr;
        internal IntPtr BlendEquationptr;
        internal IntPtr BlendEquationEXTptr;
        internal IntPtr BlendEquationIndexedAMDptr;
        internal IntPtr BlendEquationSeparateptr;
        internal IntPtr BlendEquationSeparateEXTptr;
        internal IntPtr BlendEquationSeparateIndexedAMDptr;
        internal IntPtr BlendEquationSeparateiptr;
        internal IntPtr BlendEquationSeparateiARBptr;
        internal IntPtr BlendEquationiptr;
        internal IntPtr BlendEquationiARBptr;
        internal IntPtr BlendFuncptr;
        internal IntPtr BlendFuncIndexedAMDptr;
        internal IntPtr BlendFuncSeparateptr;
        internal IntPtr BlendFuncSeparateEXTptr;
        internal IntPtr BlendFuncSeparateINGRptr;
        internal IntPtr BlendFuncSeparateIndexedAMDptr;
        internal IntPtr BlendFuncSeparateiptr;
        internal IntPtr BlendFuncSeparateiARBptr;
        internal IntPtr BlendFunciptr;
        internal IntPtr BlendFunciARBptr;
        internal IntPtr BlendParameteriNVptr;
        internal IntPtr BlitFramebufferptr;
        internal IntPtr BlitFramebufferEXTptr;
        internal IntPtr BlitFramebufferLayerEXTptr;
        internal IntPtr BlitFramebufferLayersEXTptr;
        internal IntPtr BlitNamedFramebufferptr;
        internal IntPtr BufferAddressRangeNVptr;
        internal IntPtr BufferAttachMemoryNVptr;
        internal IntPtr BufferDataptr;
        internal IntPtr BufferDataARBptr;
        internal IntPtr BufferPageCommitmentARBptr;
        internal IntPtr BufferPageCommitmentMemNVptr;
        internal IntPtr BufferParameteriAPPLEptr;
        internal IntPtr BufferStorageptr;
        internal IntPtr BufferStorageExternalEXTptr;
        internal IntPtr BufferStorageMemEXTptr;
        internal IntPtr BufferSubDataptr;
        internal IntPtr BufferSubDataARBptr;
        internal IntPtr CallCommandListNVptr;
        internal IntPtr CheckFramebufferStatusptr;
        internal IntPtr CheckFramebufferStatusEXTptr;
        internal IntPtr CheckNamedFramebufferStatusptr;
        internal IntPtr CheckNamedFramebufferStatusEXTptr;
        internal IntPtr ClampColorptr;
        internal IntPtr ClampColorARBptr;
        internal IntPtr Clearptr;
        internal IntPtr ClearAccumxOESptr;
        internal IntPtr ClearBufferDataptr;
        internal IntPtr ClearBufferSubDataptr;
        internal IntPtr ClearBufferfiptr;
        internal IntPtr ClearBufferfvptr;
        internal IntPtr ClearBufferivptr;
        internal IntPtr ClearBufferuivptr;
        internal IntPtr ClearColorptr;
        internal IntPtr ClearColorIiEXTptr;
        internal IntPtr ClearColorIuiEXTptr;
        internal IntPtr ClearColorxOESptr;
        internal IntPtr ClearDepthptr;
        internal IntPtr ClearDepthdNVptr;
        internal IntPtr ClearDepthfptr;
        internal IntPtr ClearDepthfOESptr;
        internal IntPtr ClearDepthxOESptr;
        internal IntPtr ClearNamedBufferDataptr;
        internal IntPtr ClearNamedBufferDataEXTptr;
        internal IntPtr ClearNamedBufferSubDataptr;
        internal IntPtr ClearNamedBufferSubDataEXTptr;
        internal IntPtr ClearNamedFramebufferfiptr;
        internal IntPtr ClearNamedFramebufferfvptr;
        internal IntPtr ClearNamedFramebufferivptr;
        internal IntPtr ClearNamedFramebufferuivptr;
        internal IntPtr ClearStencilptr;
        internal IntPtr ClearTexImageptr;
        internal IntPtr ClearTexSubImageptr;
        internal IntPtr ClientActiveTextureARBptr;
        internal IntPtr ClientActiveVertexStreamATIptr;
        internal IntPtr ClientAttribDefaultEXTptr;
        internal IntPtr ClientWaitSemaphoreui64NVXptr;
        internal IntPtr ClientWaitSyncptr;
        internal IntPtr ClipControlptr;
        internal IntPtr ClipPlanefOESptr;
        internal IntPtr ClipPlanexOESptr;
        internal IntPtr Color3fVertex3fSUNptr;
        internal IntPtr Color3fVertex3fvSUNptr;
        internal IntPtr Color3hNVptr;
        internal IntPtr Color3hvNVptr;
        internal IntPtr Color3xOESptr;
        internal IntPtr Color3xvOESptr;
        internal IntPtr Color4fNormal3fVertex3fSUNptr;
        internal IntPtr Color4fNormal3fVertex3fvSUNptr;
        internal IntPtr Color4hNVptr;
        internal IntPtr Color4hvNVptr;
        internal IntPtr Color4ubVertex2fSUNptr;
        internal IntPtr Color4ubVertex2fvSUNptr;
        internal IntPtr Color4ubVertex3fSUNptr;
        internal IntPtr Color4ubVertex3fvSUNptr;
        internal IntPtr Color4xOESptr;
        internal IntPtr Color4xvOESptr;
        internal IntPtr ColorFormatNVptr;
        internal IntPtr ColorFragmentOp1ATIptr;
        internal IntPtr ColorFragmentOp2ATIptr;
        internal IntPtr ColorFragmentOp3ATIptr;
        internal IntPtr ColorMaskptr;
        internal IntPtr ColorMaskIndexedEXTptr;
        internal IntPtr ColorMaskiptr;
        internal IntPtr ColorPointerEXTptr;
        internal IntPtr ColorPointerListIBMptr;
        internal IntPtr ColorPointervINTELptr;
        internal IntPtr ColorSubTableEXTptr;
        internal IntPtr ColorTableEXTptr;
        internal IntPtr ColorTableParameterfvSGIptr;
        internal IntPtr ColorTableParameterivSGIptr;
        internal IntPtr ColorTableSGIptr;
        internal IntPtr CombinerInputNVptr;
        internal IntPtr CombinerOutputNVptr;
        internal IntPtr CombinerParameterfNVptr;
        internal IntPtr CombinerParameterfvNVptr;
        internal IntPtr CombinerParameteriNVptr;
        internal IntPtr CombinerParameterivNVptr;
        internal IntPtr CombinerStageParameterfvNVptr;
        internal IntPtr CommandListSegmentsNVptr;
        internal IntPtr CompileCommandListNVptr;
        internal IntPtr CompileShaderptr;
        internal IntPtr CompileShaderARBptr;
        internal IntPtr CompileShaderIncludeARBptr;
        internal IntPtr CompressedMultiTexImage1DEXTptr;
        internal IntPtr CompressedMultiTexImage2DEXTptr;
        internal IntPtr CompressedMultiTexImage3DEXTptr;
        internal IntPtr CompressedMultiTexSubImage1DEXTptr;
        internal IntPtr CompressedMultiTexSubImage2DEXTptr;
        internal IntPtr CompressedMultiTexSubImage3DEXTptr;
        internal IntPtr CompressedTexImage1Dptr;
        internal IntPtr CompressedTexImage1DARBptr;
        internal IntPtr CompressedTexImage2Dptr;
        internal IntPtr CompressedTexImage2DARBptr;
        internal IntPtr CompressedTexImage3Dptr;
        internal IntPtr CompressedTexImage3DARBptr;
        internal IntPtr CompressedTexSubImage1Dptr;
        internal IntPtr CompressedTexSubImage1DARBptr;
        internal IntPtr CompressedTexSubImage2Dptr;
        internal IntPtr CompressedTexSubImage2DARBptr;
        internal IntPtr CompressedTexSubImage3Dptr;
        internal IntPtr CompressedTexSubImage3DARBptr;
        internal IntPtr CompressedTextureImage1DEXTptr;
        internal IntPtr CompressedTextureImage2DEXTptr;
        internal IntPtr CompressedTextureImage3DEXTptr;
        internal IntPtr CompressedTextureSubImage1Dptr;
        internal IntPtr CompressedTextureSubImage1DEXTptr;
        internal IntPtr CompressedTextureSubImage2Dptr;
        internal IntPtr CompressedTextureSubImage2DEXTptr;
        internal IntPtr CompressedTextureSubImage3Dptr;
        internal IntPtr CompressedTextureSubImage3DEXTptr;
        internal IntPtr ConservativeRasterParameterfNVptr;
        internal IntPtr ConservativeRasterParameteriNVptr;
        internal IntPtr ConvolutionFilter1DEXTptr;
        internal IntPtr ConvolutionFilter2DEXTptr;
        internal IntPtr ConvolutionParameterfEXTptr;
        internal IntPtr ConvolutionParameterfvEXTptr;
        internal IntPtr ConvolutionParameteriEXTptr;
        internal IntPtr ConvolutionParameterivEXTptr;
        internal IntPtr ConvolutionParameterxOESptr;
        internal IntPtr ConvolutionParameterxvOESptr;
        internal IntPtr CopyBufferSubDataptr;
        internal IntPtr CopyColorSubTableEXTptr;
        internal IntPtr CopyColorTableSGIptr;
        internal IntPtr CopyConvolutionFilter1DEXTptr;
        internal IntPtr CopyConvolutionFilter2DEXTptr;
        internal IntPtr CopyImageSubDataptr;
        internal IntPtr CopyImageSubDataNVptr;
        internal IntPtr CopyMultiTexImage1DEXTptr;
        internal IntPtr CopyMultiTexImage2DEXTptr;
        internal IntPtr CopyMultiTexSubImage1DEXTptr;
        internal IntPtr CopyMultiTexSubImage2DEXTptr;
        internal IntPtr CopyMultiTexSubImage3DEXTptr;
        internal IntPtr CopyNamedBufferSubDataptr;
        internal IntPtr CopyPathNVptr;
        internal IntPtr CopyTexImage1Dptr;
        internal IntPtr CopyTexImage1DEXTptr;
        internal IntPtr CopyTexImage2Dptr;
        internal IntPtr CopyTexImage2DEXTptr;
        internal IntPtr CopyTexSubImage1Dptr;
        internal IntPtr CopyTexSubImage1DEXTptr;
        internal IntPtr CopyTexSubImage2Dptr;
        internal IntPtr CopyTexSubImage2DEXTptr;
        internal IntPtr CopyTexSubImage3Dptr;
        internal IntPtr CopyTexSubImage3DEXTptr;
        internal IntPtr CopyTextureImage1DEXTptr;
        internal IntPtr CopyTextureImage2DEXTptr;
        internal IntPtr CopyTextureSubImage1Dptr;
        internal IntPtr CopyTextureSubImage1DEXTptr;
        internal IntPtr CopyTextureSubImage2Dptr;
        internal IntPtr CopyTextureSubImage2DEXTptr;
        internal IntPtr CopyTextureSubImage3Dptr;
        internal IntPtr CopyTextureSubImage3DEXTptr;
        internal IntPtr CoverFillPathInstancedNVptr;
        internal IntPtr CoverFillPathNVptr;
        internal IntPtr CoverStrokePathInstancedNVptr;
        internal IntPtr CoverStrokePathNVptr;
        internal IntPtr CoverageModulationNVptr;
        internal IntPtr CoverageModulationTableNVptr;
        internal IntPtr CreateBuffersptr;
        internal IntPtr CreateCommandListsNVptr;
        internal IntPtr CreateFramebuffersptr;
        internal IntPtr CreateMemoryObjectsEXTptr;
        internal IntPtr CreatePerfQueryINTELptr;
        internal IntPtr CreateProgramptr;
        internal IntPtr CreateProgramObjectARBptr;
        internal IntPtr CreateProgramPipelinesptr;
        internal IntPtr CreateProgressFenceNVXptr;
        internal IntPtr CreateQueriesptr;
        internal IntPtr CreateRenderbuffersptr;
        internal IntPtr CreateSamplersptr;
        internal IntPtr CreateSemaphoresNVptr;
        internal IntPtr CreateShaderptr;
        internal IntPtr CreateShaderObjectARBptr;
        internal IntPtr CreateShaderProgramEXTptr;
        internal IntPtr CreateShaderProgramvptr;
        internal IntPtr CreateStatesNVptr;
        internal IntPtr CreateSyncFromCLeventARBptr;
        internal IntPtr CreateTexturesptr;
        internal IntPtr CreateTransformFeedbacksptr;
        internal IntPtr CreateVertexArraysptr;
        internal IntPtr CullFaceptr;
        internal IntPtr CullParameterdvEXTptr;
        internal IntPtr CullParameterfvEXTptr;
        internal IntPtr CurrentPaletteMatrixARBptr;
        internal IntPtr DebugMessageCallbackptr;
        internal IntPtr DebugMessageCallbackAMDptr;
        internal IntPtr DebugMessageCallbackARBptr;
        internal IntPtr DebugMessageControlptr;
        internal IntPtr DebugMessageControlARBptr;
        internal IntPtr DebugMessageEnableAMDptr;
        internal IntPtr DebugMessageInsertptr;
        internal IntPtr DebugMessageInsertAMDptr;
        internal IntPtr DebugMessageInsertARBptr;
        internal IntPtr DeformSGIXptr;
        internal IntPtr DeformationMap3dSGIXptr;
        internal IntPtr DeformationMap3fSGIXptr;
        internal IntPtr DeleteAsyncMarkersSGIXptr;
        internal IntPtr DeleteBuffersptr;
        internal IntPtr DeleteBuffersARBptr;
        internal IntPtr DeleteCommandListsNVptr;
        internal IntPtr DeleteFencesAPPLEptr;
        internal IntPtr DeleteFencesNVptr;
        internal IntPtr DeleteFragmentShaderATIptr;
        internal IntPtr DeleteFramebuffersptr;
        internal IntPtr DeleteFramebuffersEXTptr;
        internal IntPtr DeleteMemoryObjectsEXTptr;
        internal IntPtr DeleteNamedStringARBptr;
        internal IntPtr DeleteNamesAMDptr;
        internal IntPtr DeleteObjectARBptr;
        internal IntPtr DeleteOcclusionQueriesNVptr;
        internal IntPtr DeletePathsNVptr;
        internal IntPtr DeletePerfMonitorsAMDptr;
        internal IntPtr DeletePerfQueryINTELptr;
        internal IntPtr DeleteProgramptr;
        internal IntPtr DeleteProgramPipelinesptr;
        internal IntPtr DeleteProgramsARBptr;
        internal IntPtr DeleteProgramsNVptr;
        internal IntPtr DeleteQueriesptr;
        internal IntPtr DeleteQueriesARBptr;
        internal IntPtr DeleteQueryResourceTagNVptr;
        internal IntPtr DeleteRenderbuffersptr;
        internal IntPtr DeleteRenderbuffersEXTptr;
        internal IntPtr DeleteSamplersptr;
        internal IntPtr DeleteSemaphoresEXTptr;
        internal IntPtr DeleteShaderptr;
        internal IntPtr DeleteStatesNVptr;
        internal IntPtr DeleteSyncptr;
        internal IntPtr DeleteTexturesptr;
        internal IntPtr DeleteTexturesEXTptr;
        internal IntPtr DeleteTransformFeedbacksptr;
        internal IntPtr DeleteTransformFeedbacksNVptr;
        internal IntPtr DeleteVertexArraysptr;
        internal IntPtr DeleteVertexArraysAPPLEptr;
        internal IntPtr DeleteVertexShaderEXTptr;
        internal IntPtr DepthBoundsEXTptr;
        internal IntPtr DepthBoundsdNVptr;
        internal IntPtr DepthFuncptr;
        internal IntPtr DepthMaskptr;
        internal IntPtr DepthRangeptr;
        internal IntPtr DepthRangeArraydvNVptr;
        internal IntPtr DepthRangeArrayvptr;
        internal IntPtr DepthRangeIndexedptr;
        internal IntPtr DepthRangeIndexeddNVptr;
        internal IntPtr DepthRangedNVptr;
        internal IntPtr DepthRangefptr;
        internal IntPtr DepthRangefOESptr;
        internal IntPtr DepthRangexOESptr;
        internal IntPtr DetachObjectARBptr;
        internal IntPtr DetachShaderptr;
        internal IntPtr DetailTexFuncSGISptr;
        internal IntPtr Disableptr;
        internal IntPtr DisableClientStateIndexedEXTptr;
        internal IntPtr DisableClientStateiEXTptr;
        internal IntPtr DisableIndexedEXTptr;
        internal IntPtr DisableVariantClientStateEXTptr;
        internal IntPtr DisableVertexArrayAttribptr;
        internal IntPtr DisableVertexArrayAttribEXTptr;
        internal IntPtr DisableVertexArrayEXTptr;
        internal IntPtr DisableVertexAttribAPPLEptr;
        internal IntPtr DisableVertexAttribArrayptr;
        internal IntPtr DisableVertexAttribArrayARBptr;
        internal IntPtr Disableiptr;
        internal IntPtr DispatchComputeptr;
        internal IntPtr DispatchComputeGroupSizeARBptr;
        internal IntPtr DispatchComputeIndirectptr;
        internal IntPtr DrawArraysptr;
        internal IntPtr DrawArraysEXTptr;
        internal IntPtr DrawArraysIndirectptr;
        internal IntPtr DrawArraysInstancedptr;
        internal IntPtr DrawArraysInstancedARBptr;
        internal IntPtr DrawArraysInstancedBaseInstanceptr;
        internal IntPtr DrawArraysInstancedEXTptr;
        internal IntPtr DrawBufferptr;
        internal IntPtr DrawBuffersptr;
        internal IntPtr DrawBuffersARBptr;
        internal IntPtr DrawBuffersATIptr;
        internal IntPtr DrawCommandsAddressNVptr;
        internal IntPtr DrawCommandsNVptr;
        internal IntPtr DrawCommandsStatesAddressNVptr;
        internal IntPtr DrawCommandsStatesNVptr;
        internal IntPtr DrawElementArrayAPPLEptr;
        internal IntPtr DrawElementArrayATIptr;
        internal IntPtr DrawElementsptr;
        internal IntPtr DrawElementsBaseVertexptr;
        internal IntPtr DrawElementsIndirectptr;
        internal IntPtr DrawElementsInstancedptr;
        internal IntPtr DrawElementsInstancedARBptr;
        internal IntPtr DrawElementsInstancedBaseInstanceptr;
        internal IntPtr DrawElementsInstancedBaseVertexptr;
        internal IntPtr DrawElementsInstancedBaseVertexBaseInstanceptr;
        internal IntPtr DrawElementsInstancedEXTptr;
        internal IntPtr DrawMeshArraysSUNptr;
        internal IntPtr DrawMeshTasksIndirectNVptr;
        internal IntPtr DrawMeshTasksNVptr;
        internal IntPtr DrawRangeElementArrayAPPLEptr;
        internal IntPtr DrawRangeElementArrayATIptr;
        internal IntPtr DrawRangeElementsptr;
        internal IntPtr DrawRangeElementsBaseVertexptr;
        internal IntPtr DrawRangeElementsEXTptr;
        internal IntPtr DrawTextureNVptr;
        internal IntPtr DrawTransformFeedbackptr;
        internal IntPtr DrawTransformFeedbackInstancedptr;
        internal IntPtr DrawTransformFeedbackNVptr;
        internal IntPtr DrawTransformFeedbackStreamptr;
        internal IntPtr DrawTransformFeedbackStreamInstancedptr;
        internal IntPtr DrawVkImageNVptr;
        internal IntPtr EGLImageTargetTexStorageEXTptr;
        internal IntPtr EGLImageTargetTextureStorageEXTptr;
        internal IntPtr EdgeFlagFormatNVptr;
        internal IntPtr EdgeFlagPointerEXTptr;
        internal IntPtr EdgeFlagPointerListIBMptr;
        internal IntPtr ElementPointerAPPLEptr;
        internal IntPtr ElementPointerATIptr;
        internal IntPtr Enableptr;
        internal IntPtr EnableClientStateIndexedEXTptr;
        internal IntPtr EnableClientStateiEXTptr;
        internal IntPtr EnableIndexedEXTptr;
        internal IntPtr EnableVariantClientStateEXTptr;
        internal IntPtr EnableVertexArrayAttribptr;
        internal IntPtr EnableVertexArrayAttribEXTptr;
        internal IntPtr EnableVertexArrayEXTptr;
        internal IntPtr EnableVertexAttribAPPLEptr;
        internal IntPtr EnableVertexAttribArrayptr;
        internal IntPtr EnableVertexAttribArrayARBptr;
        internal IntPtr Enableiptr;
        internal IntPtr EndConditionalRenderptr;
        internal IntPtr EndConditionalRenderNVptr;
        internal IntPtr EndConditionalRenderNVXptr;
        internal IntPtr EndFragmentShaderATIptr;
        internal IntPtr EndOcclusionQueryNVptr;
        internal IntPtr EndPerfMonitorAMDptr;
        internal IntPtr EndPerfQueryINTELptr;
        internal IntPtr EndQueryptr;
        internal IntPtr EndQueryARBptr;
        internal IntPtr EndQueryIndexedptr;
        internal IntPtr EndTransformFeedbackptr;
        internal IntPtr EndTransformFeedbackEXTptr;
        internal IntPtr EndTransformFeedbackNVptr;
        internal IntPtr EndVertexShaderEXTptr;
        internal IntPtr EndVideoCaptureNVptr;
        internal IntPtr EvalCoord1xOESptr;
        internal IntPtr EvalCoord1xvOESptr;
        internal IntPtr EvalCoord2xOESptr;
        internal IntPtr EvalCoord2xvOESptr;
        internal IntPtr EvalMapsNVptr;
        internal IntPtr EvaluateDepthValuesARBptr;
        internal IntPtr ExecuteProgramNVptr;
        internal IntPtr ExtractComponentEXTptr;
        internal IntPtr FeedbackBufferxOESptr;
        internal IntPtr FenceSyncptr;
        internal IntPtr FinalCombinerInputNVptr;
        internal IntPtr Finishptr;
        internal IntPtr FinishAsyncSGIXptr;
        internal IntPtr FinishFenceAPPLEptr;
        internal IntPtr FinishFenceNVptr;
        internal IntPtr FinishObjectAPPLEptr;
        internal IntPtr FinishTextureSUNXptr;
        internal IntPtr Flushptr;
        internal IntPtr FlushMappedBufferRangeptr;
        internal IntPtr FlushMappedBufferRangeAPPLEptr;
        internal IntPtr FlushMappedNamedBufferRangeptr;
        internal IntPtr FlushMappedNamedBufferRangeEXTptr;
        internal IntPtr FlushPixelDataRangeNVptr;
        internal IntPtr FlushRasterSGIXptr;
        internal IntPtr FlushStaticDataIBMptr;
        internal IntPtr FlushVertexArrayRangeAPPLEptr;
        internal IntPtr FlushVertexArrayRangeNVptr;
        internal IntPtr FogCoordFormatNVptr;
        internal IntPtr FogCoordPointerEXTptr;
        internal IntPtr FogCoordPointerListIBMptr;
        internal IntPtr FogCoorddEXTptr;
        internal IntPtr FogCoorddvEXTptr;
        internal IntPtr FogCoordfEXTptr;
        internal IntPtr FogCoordfvEXTptr;
        internal IntPtr FogCoordhNVptr;
        internal IntPtr FogCoordhvNVptr;
        internal IntPtr FogFuncSGISptr;
        internal IntPtr FogxOESptr;
        internal IntPtr FogxvOESptr;
        internal IntPtr FragmentColorMaterialSGIXptr;
        internal IntPtr FragmentCoverageColorNVptr;
        internal IntPtr FragmentLightModelfSGIXptr;
        internal IntPtr FragmentLightModelfvSGIXptr;
        internal IntPtr FragmentLightModeliSGIXptr;
        internal IntPtr FragmentLightModelivSGIXptr;
        internal IntPtr FragmentLightfSGIXptr;
        internal IntPtr FragmentLightfvSGIXptr;
        internal IntPtr FragmentLightiSGIXptr;
        internal IntPtr FragmentLightivSGIXptr;
        internal IntPtr FragmentMaterialfSGIXptr;
        internal IntPtr FragmentMaterialfvSGIXptr;
        internal IntPtr FragmentMaterialiSGIXptr;
        internal IntPtr FragmentMaterialivSGIXptr;
        internal IntPtr FrameTerminatorGREMEDYptr;
        internal IntPtr FrameZoomSGIXptr;
        internal IntPtr FramebufferDrawBufferEXTptr;
        internal IntPtr FramebufferDrawBuffersEXTptr;
        internal IntPtr FramebufferFetchBarrierEXTptr;
        internal IntPtr FramebufferParameteriptr;
        internal IntPtr FramebufferParameteriMESAptr;
        internal IntPtr FramebufferReadBufferEXTptr;
        internal IntPtr FramebufferRenderbufferptr;
        internal IntPtr FramebufferRenderbufferEXTptr;
        internal IntPtr FramebufferSampleLocationsfvARBptr;
        internal IntPtr FramebufferSampleLocationsfvNVptr;
        internal IntPtr FramebufferSamplePositionsfvAMDptr;
        internal IntPtr FramebufferTextureptr;
        internal IntPtr FramebufferTexture1Dptr;
        internal IntPtr FramebufferTexture1DEXTptr;
        internal IntPtr FramebufferTexture2Dptr;
        internal IntPtr FramebufferTexture2DEXTptr;
        internal IntPtr FramebufferTexture3Dptr;
        internal IntPtr FramebufferTexture3DEXTptr;
        internal IntPtr FramebufferTextureARBptr;
        internal IntPtr FramebufferTextureEXTptr;
        internal IntPtr FramebufferTextureFaceARBptr;
        internal IntPtr FramebufferTextureFaceEXTptr;
        internal IntPtr FramebufferTextureLayerptr;
        internal IntPtr FramebufferTextureLayerARBptr;
        internal IntPtr FramebufferTextureLayerEXTptr;
        internal IntPtr FramebufferTextureMultiviewOVRptr;
        internal IntPtr FreeObjectBufferATIptr;
        internal IntPtr FrontFaceptr;
        internal IntPtr FrustumfOESptr;
        internal IntPtr FrustumxOESptr;
        internal IntPtr GenAsyncMarkersSGIXptr;
        internal IntPtr GenBuffersptr;
        internal IntPtr GenBuffersARBptr;
        internal IntPtr GenFencesAPPLEptr;
        internal IntPtr GenFencesNVptr;
        internal IntPtr GenFragmentShadersATIptr;
        internal IntPtr GenFramebuffersptr;
        internal IntPtr GenFramebuffersEXTptr;
        internal IntPtr GenNamesAMDptr;
        internal IntPtr GenOcclusionQueriesNVptr;
        internal IntPtr GenPathsNVptr;
        internal IntPtr GenPerfMonitorsAMDptr;
        internal IntPtr GenProgramPipelinesptr;
        internal IntPtr GenProgramsARBptr;
        internal IntPtr GenProgramsNVptr;
        internal IntPtr GenQueriesptr;
        internal IntPtr GenQueriesARBptr;
        internal IntPtr GenQueryResourceTagNVptr;
        internal IntPtr GenRenderbuffersptr;
        internal IntPtr GenRenderbuffersEXTptr;
        internal IntPtr GenSamplersptr;
        internal IntPtr GenSemaphoresEXTptr;
        internal IntPtr GenSymbolsEXTptr;
        internal IntPtr GenTexturesptr;
        internal IntPtr GenTexturesEXTptr;
        internal IntPtr GenTransformFeedbacksptr;
        internal IntPtr GenTransformFeedbacksNVptr;
        internal IntPtr GenVertexArraysptr;
        internal IntPtr GenVertexArraysAPPLEptr;
        internal IntPtr GenVertexShadersEXTptr;
        internal IntPtr GenerateMipmapptr;
        internal IntPtr GenerateMipmapEXTptr;
        internal IntPtr GenerateMultiTexMipmapEXTptr;
        internal IntPtr GenerateTextureMipmapptr;
        internal IntPtr GenerateTextureMipmapEXTptr;
        internal IntPtr GetActiveAtomicCounterBufferivptr;
        internal IntPtr GetActiveAttribptr;
        internal IntPtr GetActiveAttribARBptr;
        internal IntPtr GetActiveSubroutineNameptr;
        internal IntPtr GetActiveSubroutineUniformNameptr;
        internal IntPtr GetActiveSubroutineUniformivptr;
        internal IntPtr GetActiveUniformptr;
        internal IntPtr GetActiveUniformARBptr;
        internal IntPtr GetActiveUniformBlockNameptr;
        internal IntPtr GetActiveUniformBlockivptr;
        internal IntPtr GetActiveUniformNameptr;
        internal IntPtr GetActiveUniformsivptr;
        internal IntPtr GetActiveVaryingNVptr;
        internal IntPtr GetArrayObjectfvATIptr;
        internal IntPtr GetArrayObjectivATIptr;
        internal IntPtr GetAttachedObjectsARBptr;
        internal IntPtr GetAttachedShadersptr;
        internal IntPtr GetAttribLocationptr;
        internal IntPtr GetAttribLocationARBptr;
        internal IntPtr GetBooleanIndexedvEXTptr;
        internal IntPtr GetBooleani_vptr;
        internal IntPtr GetBooleanvptr;
        internal IntPtr GetBufferParameteri64vptr;
        internal IntPtr GetBufferParameterivptr;
        internal IntPtr GetBufferParameterivARBptr;
        internal IntPtr GetBufferParameterui64vNVptr;
        internal IntPtr GetBufferPointervptr;
        internal IntPtr GetBufferPointervARBptr;
        internal IntPtr GetBufferSubDataptr;
        internal IntPtr GetBufferSubDataARBptr;
        internal IntPtr GetClipPlanefOESptr;
        internal IntPtr GetClipPlanexOESptr;
        internal IntPtr GetColorTableEXTptr;
        internal IntPtr GetColorTableParameterfvEXTptr;
        internal IntPtr GetColorTableParameterfvSGIptr;
        internal IntPtr GetColorTableParameterivEXTptr;
        internal IntPtr GetColorTableParameterivSGIptr;
        internal IntPtr GetColorTableSGIptr;
        internal IntPtr GetCombinerInputParameterfvNVptr;
        internal IntPtr GetCombinerInputParameterivNVptr;
        internal IntPtr GetCombinerOutputParameterfvNVptr;
        internal IntPtr GetCombinerOutputParameterivNVptr;
        internal IntPtr GetCombinerStageParameterfvNVptr;
        internal IntPtr GetCommandHeaderNVptr;
        internal IntPtr GetCompressedMultiTexImageEXTptr;
        internal IntPtr GetCompressedTexImageptr;
        internal IntPtr GetCompressedTexImageARBptr;
        internal IntPtr GetCompressedTextureImageptr;
        internal IntPtr GetCompressedTextureImageEXTptr;
        internal IntPtr GetCompressedTextureSubImageptr;
        internal IntPtr GetConvolutionFilterEXTptr;
        internal IntPtr GetConvolutionParameterfvEXTptr;
        internal IntPtr GetConvolutionParameterivEXTptr;
        internal IntPtr GetConvolutionParameterxvOESptr;
        internal IntPtr GetCoverageModulationTableNVptr;
        internal IntPtr GetDebugMessageLogptr;
        internal IntPtr GetDebugMessageLogAMDptr;
        internal IntPtr GetDebugMessageLogARBptr;
        internal IntPtr GetDetailTexFuncSGISptr;
        internal IntPtr GetDoubleIndexedvEXTptr;
        internal IntPtr GetDoublei_vptr;
        internal IntPtr GetDoublei_vEXTptr;
        internal IntPtr GetDoublevptr;
        internal IntPtr GetErrorptr;
        internal IntPtr GetFenceivNVptr;
        internal IntPtr GetFinalCombinerInputParameterfvNVptr;
        internal IntPtr GetFinalCombinerInputParameterivNVptr;
        internal IntPtr GetFirstPerfQueryIdINTELptr;
        internal IntPtr GetFixedvOESptr;
        internal IntPtr GetFloatIndexedvEXTptr;
        internal IntPtr GetFloati_vptr;
        internal IntPtr GetFloati_vEXTptr;
        internal IntPtr GetFloatvptr;
        internal IntPtr GetFogFuncSGISptr;
        internal IntPtr GetFragDataIndexptr;
        internal IntPtr GetFragDataLocationptr;
        internal IntPtr GetFragDataLocationEXTptr;
        internal IntPtr GetFragmentLightfvSGIXptr;
        internal IntPtr GetFragmentLightivSGIXptr;
        internal IntPtr GetFragmentMaterialfvSGIXptr;
        internal IntPtr GetFragmentMaterialivSGIXptr;
        internal IntPtr GetFramebufferAttachmentParameterivptr;
        internal IntPtr GetFramebufferAttachmentParameterivEXTptr;
        internal IntPtr GetFramebufferParameterfvAMDptr;
        internal IntPtr GetFramebufferParameterivptr;
        internal IntPtr GetFramebufferParameterivEXTptr;
        internal IntPtr GetFramebufferParameterivMESAptr;
        internal IntPtr GetGraphicsResetStatusptr;
        internal IntPtr GetGraphicsResetStatusARBptr;
        internal IntPtr GetHandleARBptr;
        internal IntPtr GetHistogramEXTptr;
        internal IntPtr GetHistogramParameterfvEXTptr;
        internal IntPtr GetHistogramParameterivEXTptr;
        internal IntPtr GetHistogramParameterxvOESptr;
        internal IntPtr GetImageHandleARBptr;
        internal IntPtr GetImageHandleNVptr;
        internal IntPtr GetImageTransformParameterfvHPptr;
        internal IntPtr GetImageTransformParameterivHPptr;
        internal IntPtr GetInfoLogARBptr;
        internal IntPtr GetInstrumentsSGIXptr;
        internal IntPtr GetInteger64i_vptr;
        internal IntPtr GetInteger64vptr;
        internal IntPtr GetIntegerIndexedvEXTptr;
        internal IntPtr GetIntegeri_vptr;
        internal IntPtr GetIntegerui64i_vNVptr;
        internal IntPtr GetIntegerui64vNVptr;
        internal IntPtr GetIntegervptr;
        internal IntPtr GetInternalformatSampleivNVptr;
        internal IntPtr GetInternalformati64vptr;
        internal IntPtr GetInternalformativptr;
        internal IntPtr GetInvariantBooleanvEXTptr;
        internal IntPtr GetInvariantFloatvEXTptr;
        internal IntPtr GetInvariantIntegervEXTptr;
        internal IntPtr GetLightxOESptr;
        internal IntPtr GetListParameterfvSGIXptr;
        internal IntPtr GetListParameterivSGIXptr;
        internal IntPtr GetLocalConstantBooleanvEXTptr;
        internal IntPtr GetLocalConstantFloatvEXTptr;
        internal IntPtr GetLocalConstantIntegervEXTptr;
        internal IntPtr GetMapAttribParameterfvNVptr;
        internal IntPtr GetMapAttribParameterivNVptr;
        internal IntPtr GetMapControlPointsNVptr;
        internal IntPtr GetMapParameterfvNVptr;
        internal IntPtr GetMapParameterivNVptr;
        internal IntPtr GetMapxvOESptr;
        internal IntPtr GetMaterialxOESptr;
        internal IntPtr GetMemoryObjectDetachedResourcesuivNVptr;
        internal IntPtr GetMemoryObjectParameterivEXTptr;
        internal IntPtr GetMinmaxEXTptr;
        internal IntPtr GetMinmaxParameterfvEXTptr;
        internal IntPtr GetMinmaxParameterivEXTptr;
        internal IntPtr GetMultiTexEnvfvEXTptr;
        internal IntPtr GetMultiTexEnvivEXTptr;
        internal IntPtr GetMultiTexGendvEXTptr;
        internal IntPtr GetMultiTexGenfvEXTptr;
        internal IntPtr GetMultiTexGenivEXTptr;
        internal IntPtr GetMultiTexImageEXTptr;
        internal IntPtr GetMultiTexLevelParameterfvEXTptr;
        internal IntPtr GetMultiTexLevelParameterivEXTptr;
        internal IntPtr GetMultiTexParameterIivEXTptr;
        internal IntPtr GetMultiTexParameterIuivEXTptr;
        internal IntPtr GetMultiTexParameterfvEXTptr;
        internal IntPtr GetMultiTexParameterivEXTptr;
        internal IntPtr GetMultisamplefvptr;
        internal IntPtr GetMultisamplefvNVptr;
        internal IntPtr GetNamedBufferParameteri64vptr;
        internal IntPtr GetNamedBufferParameterivptr;
        internal IntPtr GetNamedBufferParameterivEXTptr;
        internal IntPtr GetNamedBufferParameterui64vNVptr;
        internal IntPtr GetNamedBufferPointervptr;
        internal IntPtr GetNamedBufferPointervEXTptr;
        internal IntPtr GetNamedBufferSubDataptr;
        internal IntPtr GetNamedBufferSubDataEXTptr;
        internal IntPtr GetNamedFramebufferAttachmentParameterivptr;
        internal IntPtr GetNamedFramebufferAttachmentParameterivEXTptr;
        internal IntPtr GetNamedFramebufferParameterfvAMDptr;
        internal IntPtr GetNamedFramebufferParameterivptr;
        internal IntPtr GetNamedFramebufferParameterivEXTptr;
        internal IntPtr GetNamedProgramLocalParameterIivEXTptr;
        internal IntPtr GetNamedProgramLocalParameterIuivEXTptr;
        internal IntPtr GetNamedProgramLocalParameterdvEXTptr;
        internal IntPtr GetNamedProgramLocalParameterfvEXTptr;
        internal IntPtr GetNamedProgramStringEXTptr;
        internal IntPtr GetNamedProgramivEXTptr;
        internal IntPtr GetNamedRenderbufferParameterivptr;
        internal IntPtr GetNamedRenderbufferParameterivEXTptr;
        internal IntPtr GetNamedStringARBptr;
        internal IntPtr GetNamedStringivARBptr;
        internal IntPtr GetNextPerfQueryIdINTELptr;
        internal IntPtr GetObjectBufferfvATIptr;
        internal IntPtr GetObjectBufferivATIptr;
        internal IntPtr GetObjectLabelptr;
        internal IntPtr GetObjectLabelEXTptr;
        internal IntPtr GetObjectParameterfvARBptr;
        internal IntPtr GetObjectParameterivAPPLEptr;
        internal IntPtr GetObjectParameterivARBptr;
        internal IntPtr GetObjectPtrLabelptr;
        internal IntPtr GetOcclusionQueryivNVptr;
        internal IntPtr GetOcclusionQueryuivNVptr;
        internal IntPtr GetPathCommandsNVptr;
        internal IntPtr GetPathCoordsNVptr;
        internal IntPtr GetPathDashArrayNVptr;
        internal IntPtr GetPathLengthNVptr;
        internal IntPtr GetPathMetricRangeNVptr;
        internal IntPtr GetPathMetricsNVptr;
        internal IntPtr GetPathParameterfvNVptr;
        internal IntPtr GetPathParameterivNVptr;
        internal IntPtr GetPathSpacingNVptr;
        internal IntPtr GetPerfCounterInfoINTELptr;
        internal IntPtr GetPerfMonitorCounterDataAMDptr;
        internal IntPtr GetPerfMonitorCounterInfoAMDptr;
        internal IntPtr GetPerfMonitorCounterStringAMDptr;
        internal IntPtr GetPerfMonitorCountersAMDptr;
        internal IntPtr GetPerfMonitorGroupStringAMDptr;
        internal IntPtr GetPerfMonitorGroupsAMDptr;
        internal IntPtr GetPerfQueryDataINTELptr;
        internal IntPtr GetPerfQueryIdByNameINTELptr;
        internal IntPtr GetPerfQueryInfoINTELptr;
        internal IntPtr GetPixelMapxvptr;
        internal IntPtr GetPixelTexGenParameterfvSGISptr;
        internal IntPtr GetPixelTexGenParameterivSGISptr;
        internal IntPtr GetPixelTransformParameterfvEXTptr;
        internal IntPtr GetPixelTransformParameterivEXTptr;
        internal IntPtr GetPointerIndexedvEXTptr;
        internal IntPtr GetPointeri_vEXTptr;
        internal IntPtr GetPointervptr;
        internal IntPtr GetPointervEXTptr;
        internal IntPtr GetProgramBinaryptr;
        internal IntPtr GetProgramEnvParameterIivNVptr;
        internal IntPtr GetProgramEnvParameterIuivNVptr;
        internal IntPtr GetProgramEnvParameterdvARBptr;
        internal IntPtr GetProgramEnvParameterfvARBptr;
        internal IntPtr GetProgramInfoLogptr;
        internal IntPtr GetProgramInterfaceivptr;
        internal IntPtr GetProgramLocalParameterIivNVptr;
        internal IntPtr GetProgramLocalParameterIuivNVptr;
        internal IntPtr GetProgramLocalParameterdvARBptr;
        internal IntPtr GetProgramLocalParameterfvARBptr;
        internal IntPtr GetProgramNamedParameterdvNVptr;
        internal IntPtr GetProgramNamedParameterfvNVptr;
        internal IntPtr GetProgramParameterdvNVptr;
        internal IntPtr GetProgramParameterfvNVptr;
        internal IntPtr GetProgramPipelineInfoLogptr;
        internal IntPtr GetProgramPipelineivptr;
        internal IntPtr GetProgramResourceIndexptr;
        internal IntPtr GetProgramResourceLocationptr;
        internal IntPtr GetProgramResourceLocationIndexptr;
        internal IntPtr GetProgramResourceNameptr;
        internal IntPtr GetProgramResourcefvNVptr;
        internal IntPtr GetProgramResourceivptr;
        internal IntPtr GetProgramStageivptr;
        internal IntPtr GetProgramStringARBptr;
        internal IntPtr GetProgramStringNVptr;
        internal IntPtr GetProgramSubroutineParameteruivNVptr;
        internal IntPtr GetProgramivptr;
        internal IntPtr GetProgramivARBptr;
        internal IntPtr GetProgramivNVptr;
        internal IntPtr GetQueryBufferObjecti64vptr;
        internal IntPtr GetQueryBufferObjectivptr;
        internal IntPtr GetQueryBufferObjectui64vptr;
        internal IntPtr GetQueryBufferObjectuivptr;
        internal IntPtr GetQueryIndexedivptr;
        internal IntPtr GetQueryObjecti64vptr;
        internal IntPtr GetQueryObjecti64vEXTptr;
        internal IntPtr GetQueryObjectivptr;
        internal IntPtr GetQueryObjectivARBptr;
        internal IntPtr GetQueryObjectui64vptr;
        internal IntPtr GetQueryObjectui64vEXTptr;
        internal IntPtr GetQueryObjectuivptr;
        internal IntPtr GetQueryObjectuivARBptr;
        internal IntPtr GetQueryivptr;
        internal IntPtr GetQueryivARBptr;
        internal IntPtr GetRenderbufferParameterivptr;
        internal IntPtr GetRenderbufferParameterivEXTptr;
        internal IntPtr GetSamplerParameterIivptr;
        internal IntPtr GetSamplerParameterIuivptr;
        internal IntPtr GetSamplerParameterfvptr;
        internal IntPtr GetSamplerParameterivptr;
        internal IntPtr GetSemaphoreParameterivNVptr;
        internal IntPtr GetSemaphoreParameterui64vEXTptr;
        internal IntPtr GetSeparableFilterEXTptr;
        internal IntPtr GetShaderInfoLogptr;
        internal IntPtr GetShaderPrecisionFormatptr;
        internal IntPtr GetShaderSourceptr;
        internal IntPtr GetShaderSourceARBptr;
        internal IntPtr GetShaderivptr;
        internal IntPtr GetShadingRateImagePaletteNVptr;
        internal IntPtr GetShadingRateSampleLocationivNVptr;
        internal IntPtr GetSharpenTexFuncSGISptr;
        internal IntPtr GetStageIndexNVptr;
        internal IntPtr GetStringptr;
        internal IntPtr GetStringiptr;
        internal IntPtr GetSubroutineIndexptr;
        internal IntPtr GetSubroutineUniformLocationptr;
        internal IntPtr GetSyncivptr;
        internal IntPtr GetTexBumpParameterfvATIptr;
        internal IntPtr GetTexBumpParameterivATIptr;
        internal IntPtr GetTexEnvxvOESptr;
        internal IntPtr GetTexFilterFuncSGISptr;
        internal IntPtr GetTexGenxvOESptr;
        internal IntPtr GetTexImageptr;
        internal IntPtr GetTexLevelParameterfvptr;
        internal IntPtr GetTexLevelParameterivptr;
        internal IntPtr GetTexLevelParameterxvOESptr;
        internal IntPtr GetTexParameterIivptr;
        internal IntPtr GetTexParameterIivEXTptr;
        internal IntPtr GetTexParameterIuivptr;
        internal IntPtr GetTexParameterIuivEXTptr;
        internal IntPtr GetTexParameterPointervAPPLEptr;
        internal IntPtr GetTexParameterfvptr;
        internal IntPtr GetTexParameterivptr;
        internal IntPtr GetTexParameterxvOESptr;
        internal IntPtr GetTextureHandleARBptr;
        internal IntPtr GetTextureHandleNVptr;
        internal IntPtr GetTextureImageptr;
        internal IntPtr GetTextureImageEXTptr;
        internal IntPtr GetTextureLevelParameterfvptr;
        internal IntPtr GetTextureLevelParameterfvEXTptr;
        internal IntPtr GetTextureLevelParameterivptr;
        internal IntPtr GetTextureLevelParameterivEXTptr;
        internal IntPtr GetTextureParameterIivptr;
        internal IntPtr GetTextureParameterIivEXTptr;
        internal IntPtr GetTextureParameterIuivptr;
        internal IntPtr GetTextureParameterIuivEXTptr;
        internal IntPtr GetTextureParameterfvptr;
        internal IntPtr GetTextureParameterfvEXTptr;
        internal IntPtr GetTextureParameterivptr;
        internal IntPtr GetTextureParameterivEXTptr;
        internal IntPtr GetTextureSamplerHandleARBptr;
        internal IntPtr GetTextureSamplerHandleNVptr;
        internal IntPtr GetTextureSubImageptr;
        internal IntPtr GetTrackMatrixivNVptr;
        internal IntPtr GetTransformFeedbackVaryingptr;
        internal IntPtr GetTransformFeedbackVaryingEXTptr;
        internal IntPtr GetTransformFeedbackVaryingNVptr;
        internal IntPtr GetTransformFeedbacki64_vptr;
        internal IntPtr GetTransformFeedbacki_vptr;
        internal IntPtr GetTransformFeedbackivptr;
        internal IntPtr GetUniformBlockIndexptr;
        internal IntPtr GetUniformBufferSizeEXTptr;
        internal IntPtr GetUniformIndicesptr;
        internal IntPtr GetUniformLocationptr;
        internal IntPtr GetUniformLocationARBptr;
        internal IntPtr GetUniformOffsetEXTptr;
        internal IntPtr GetUniformSubroutineuivptr;
        internal IntPtr GetUniformdvptr;
        internal IntPtr GetUniformfvptr;
        internal IntPtr GetUniformfvARBptr;
        internal IntPtr GetUniformi64vARBptr;
        internal IntPtr GetUniformi64vNVptr;
        internal IntPtr GetUniformivptr;
        internal IntPtr GetUniformivARBptr;
        internal IntPtr GetUniformui64vARBptr;
        internal IntPtr GetUniformui64vNVptr;
        internal IntPtr GetUniformuivptr;
        internal IntPtr GetUniformuivEXTptr;
        internal IntPtr GetUnsignedBytei_vEXTptr;
        internal IntPtr GetUnsignedBytevEXTptr;
        internal IntPtr GetVariantArrayObjectfvATIptr;
        internal IntPtr GetVariantArrayObjectivATIptr;
        internal IntPtr GetVariantBooleanvEXTptr;
        internal IntPtr GetVariantFloatvEXTptr;
        internal IntPtr GetVariantIntegervEXTptr;
        internal IntPtr GetVariantPointervEXTptr;
        internal IntPtr GetVaryingLocationNVptr;
        internal IntPtr GetVertexArrayIndexed64ivptr;
        internal IntPtr GetVertexArrayIndexedivptr;
        internal IntPtr GetVertexArrayIntegeri_vEXTptr;
        internal IntPtr GetVertexArrayIntegervEXTptr;
        internal IntPtr GetVertexArrayPointeri_vEXTptr;
        internal IntPtr GetVertexArrayPointervEXTptr;
        internal IntPtr GetVertexArrayivptr;
        internal IntPtr GetVertexAttribArrayObjectfvATIptr;
        internal IntPtr GetVertexAttribArrayObjectivATIptr;
        internal IntPtr GetVertexAttribIivptr;
        internal IntPtr GetVertexAttribIivEXTptr;
        internal IntPtr GetVertexAttribIuivptr;
        internal IntPtr GetVertexAttribIuivEXTptr;
        internal IntPtr GetVertexAttribLdvptr;
        internal IntPtr GetVertexAttribLdvEXTptr;
        internal IntPtr GetVertexAttribLi64vNVptr;
        internal IntPtr GetVertexAttribLui64vARBptr;
        internal IntPtr GetVertexAttribLui64vNVptr;
        internal IntPtr GetVertexAttribPointervptr;
        internal IntPtr GetVertexAttribPointervARBptr;
        internal IntPtr GetVertexAttribPointervNVptr;
        internal IntPtr GetVertexAttribdvptr;
        internal IntPtr GetVertexAttribdvARBptr;
        internal IntPtr GetVertexAttribdvNVptr;
        internal IntPtr GetVertexAttribfvptr;
        internal IntPtr GetVertexAttribfvARBptr;
        internal IntPtr GetVertexAttribfvNVptr;
        internal IntPtr GetVertexAttribivptr;
        internal IntPtr GetVertexAttribivARBptr;
        internal IntPtr GetVertexAttribivNVptr;
        internal IntPtr GetVideoCaptureStreamdvNVptr;
        internal IntPtr GetVideoCaptureStreamfvNVptr;
        internal IntPtr GetVideoCaptureStreamivNVptr;
        internal IntPtr GetVideoCaptureivNVptr;
        internal IntPtr GetVideoi64vNVptr;
        internal IntPtr GetVideoivNVptr;
        internal IntPtr GetVideoui64vNVptr;
        internal IntPtr GetVideouivNVptr;
        internal IntPtr GetVkProcAddrNVptr;
        internal IntPtr GetnCompressedTexImageptr;
        internal IntPtr GetnCompressedTexImageARBptr;
        internal IntPtr GetnTexImageptr;
        internal IntPtr GetnTexImageARBptr;
        internal IntPtr GetnUniformdvptr;
        internal IntPtr GetnUniformdvARBptr;
        internal IntPtr GetnUniformfvptr;
        internal IntPtr GetnUniformfvARBptr;
        internal IntPtr GetnUniformi64vARBptr;
        internal IntPtr GetnUniformivptr;
        internal IntPtr GetnUniformivARBptr;
        internal IntPtr GetnUniformui64vARBptr;
        internal IntPtr GetnUniformuivptr;
        internal IntPtr GetnUniformuivARBptr;
        internal IntPtr GlobalAlphaFactorbSUNptr;
        internal IntPtr GlobalAlphaFactordSUNptr;
        internal IntPtr GlobalAlphaFactorfSUNptr;
        internal IntPtr GlobalAlphaFactoriSUNptr;
        internal IntPtr GlobalAlphaFactorsSUNptr;
        internal IntPtr GlobalAlphaFactorubSUNptr;
        internal IntPtr GlobalAlphaFactoruiSUNptr;
        internal IntPtr GlobalAlphaFactorusSUNptr;
        internal IntPtr Hintptr;
        internal IntPtr HintPGIptr;
        internal IntPtr HistogramEXTptr;
        internal IntPtr IglooInterfaceSGIXptr;
        internal IntPtr ImageTransformParameterfHPptr;
        internal IntPtr ImageTransformParameterfvHPptr;
        internal IntPtr ImageTransformParameteriHPptr;
        internal IntPtr ImageTransformParameterivHPptr;
        internal IntPtr ImportMemoryFdEXTptr;
        internal IntPtr ImportMemoryWin32HandleEXTptr;
        internal IntPtr ImportMemoryWin32NameEXTptr;
        internal IntPtr ImportSemaphoreFdEXTptr;
        internal IntPtr ImportSemaphoreWin32HandleEXTptr;
        internal IntPtr ImportSemaphoreWin32NameEXTptr;
        internal IntPtr ImportSyncEXTptr;
        internal IntPtr IndexFormatNVptr;
        internal IntPtr IndexFuncEXTptr;
        internal IntPtr IndexMaterialEXTptr;
        internal IntPtr IndexPointerEXTptr;
        internal IntPtr IndexPointerListIBMptr;
        internal IntPtr IndexxOESptr;
        internal IntPtr IndexxvOESptr;
        internal IntPtr InsertComponentEXTptr;
        internal IntPtr InsertEventMarkerEXTptr;
        internal IntPtr InstrumentsBufferSGIXptr;
        internal IntPtr InterpolatePathsNVptr;
        internal IntPtr InvalidateBufferDataptr;
        internal IntPtr InvalidateBufferSubDataptr;
        internal IntPtr InvalidateFramebufferptr;
        internal IntPtr InvalidateNamedFramebufferDataptr;
        internal IntPtr InvalidateNamedFramebufferSubDataptr;
        internal IntPtr InvalidateSubFramebufferptr;
        internal IntPtr InvalidateTexImageptr;
        internal IntPtr InvalidateTexSubImageptr;
        internal IntPtr IsAsyncMarkerSGIXptr;
        internal IntPtr IsBufferptr;
        internal IntPtr IsBufferARBptr;
        internal IntPtr IsBufferResidentNVptr;
        internal IntPtr IsCommandListNVptr;
        internal IntPtr IsEnabledptr;
        internal IntPtr IsEnabledIndexedEXTptr;
        internal IntPtr IsEnablediptr;
        internal IntPtr IsFenceAPPLEptr;
        internal IntPtr IsFenceNVptr;
        internal IntPtr IsFramebufferptr;
        internal IntPtr IsFramebufferEXTptr;
        internal IntPtr IsImageHandleResidentARBptr;
        internal IntPtr IsImageHandleResidentNVptr;
        internal IntPtr IsMemoryObjectEXTptr;
        internal IntPtr IsNameAMDptr;
        internal IntPtr IsNamedBufferResidentNVptr;
        internal IntPtr IsNamedStringARBptr;
        internal IntPtr IsObjectBufferATIptr;
        internal IntPtr IsOcclusionQueryNVptr;
        internal IntPtr IsPathNVptr;
        internal IntPtr IsPointInFillPathNVptr;
        internal IntPtr IsPointInStrokePathNVptr;
        internal IntPtr IsProgramptr;
        internal IntPtr IsProgramARBptr;
        internal IntPtr IsProgramNVptr;
        internal IntPtr IsProgramPipelineptr;
        internal IntPtr IsQueryptr;
        internal IntPtr IsQueryARBptr;
        internal IntPtr IsRenderbufferptr;
        internal IntPtr IsRenderbufferEXTptr;
        internal IntPtr IsSamplerptr;
        internal IntPtr IsSemaphoreEXTptr;
        internal IntPtr IsShaderptr;
        internal IntPtr IsStateNVptr;
        internal IntPtr IsSyncptr;
        internal IntPtr IsTextureptr;
        internal IntPtr IsTextureEXTptr;
        internal IntPtr IsTextureHandleResidentARBptr;
        internal IntPtr IsTextureHandleResidentNVptr;
        internal IntPtr IsTransformFeedbackptr;
        internal IntPtr IsTransformFeedbackNVptr;
        internal IntPtr IsVariantEnabledEXTptr;
        internal IntPtr IsVertexArrayptr;
        internal IntPtr IsVertexArrayAPPLEptr;
        internal IntPtr IsVertexAttribEnabledAPPLEptr;
        internal IntPtr LGPUCopyImageSubDataNVXptr;
        internal IntPtr LGPUInterlockNVXptr;
        internal IntPtr LGPUNamedBufferSubDataNVXptr;
        internal IntPtr LabelObjectEXTptr;
        internal IntPtr LightEnviSGIXptr;
        internal IntPtr LightModelxOESptr;
        internal IntPtr LightModelxvOESptr;
        internal IntPtr LightxOESptr;
        internal IntPtr LightxvOESptr;
        internal IntPtr LineWidthptr;
        internal IntPtr LineWidthxOESptr;
        internal IntPtr LinkProgramptr;
        internal IntPtr LinkProgramARBptr;
        internal IntPtr ListDrawCommandsStatesClientNVptr;
        internal IntPtr ListParameterfSGIXptr;
        internal IntPtr ListParameterfvSGIXptr;
        internal IntPtr ListParameteriSGIXptr;
        internal IntPtr ListParameterivSGIXptr;
        internal IntPtr LoadIdentityDeformationMapSGIXptr;
        internal IntPtr LoadMatrixxOESptr;
        internal IntPtr LoadProgramNVptr;
        internal IntPtr LoadTransposeMatrixdARBptr;
        internal IntPtr LoadTransposeMatrixfARBptr;
        internal IntPtr LoadTransposeMatrixxOESptr;
        internal IntPtr LockArraysEXTptr;
        internal IntPtr LogicOpptr;
        internal IntPtr MakeBufferNonResidentNVptr;
        internal IntPtr MakeBufferResidentNVptr;
        internal IntPtr MakeImageHandleNonResidentARBptr;
        internal IntPtr MakeImageHandleNonResidentNVptr;
        internal IntPtr MakeImageHandleResidentARBptr;
        internal IntPtr MakeImageHandleResidentNVptr;
        internal IntPtr MakeNamedBufferNonResidentNVptr;
        internal IntPtr MakeNamedBufferResidentNVptr;
        internal IntPtr MakeTextureHandleNonResidentARBptr;
        internal IntPtr MakeTextureHandleNonResidentNVptr;
        internal IntPtr MakeTextureHandleResidentARBptr;
        internal IntPtr MakeTextureHandleResidentNVptr;
        internal IntPtr Map1xOESptr;
        internal IntPtr Map2xOESptr;
        internal IntPtr MapBufferptr;
        internal IntPtr MapBufferARBptr;
        internal IntPtr MapBufferRangeptr;
        internal IntPtr MapControlPointsNVptr;
        internal IntPtr MapGrid1xOESptr;
        internal IntPtr MapGrid2xOESptr;
        internal IntPtr MapNamedBufferptr;
        internal IntPtr MapNamedBufferEXTptr;
        internal IntPtr MapNamedBufferRangeptr;
        internal IntPtr MapNamedBufferRangeEXTptr;
        internal IntPtr MapObjectBufferATIptr;
        internal IntPtr MapParameterfvNVptr;
        internal IntPtr MapParameterivNVptr;
        internal IntPtr MapTexture2DINTELptr;
        internal IntPtr MapVertexAttrib1dAPPLEptr;
        internal IntPtr MapVertexAttrib1fAPPLEptr;
        internal IntPtr MapVertexAttrib2dAPPLEptr;
        internal IntPtr MapVertexAttrib2fAPPLEptr;
        internal IntPtr MaterialxOESptr;
        internal IntPtr MaterialxvOESptr;
        internal IntPtr MatrixFrustumEXTptr;
        internal IntPtr MatrixIndexPointerARBptr;
        internal IntPtr MatrixIndexubvARBptr;
        internal IntPtr MatrixIndexuivARBptr;
        internal IntPtr MatrixIndexusvARBptr;
        internal IntPtr MatrixLoad3x2fNVptr;
        internal IntPtr MatrixLoad3x3fNVptr;
        internal IntPtr MatrixLoadIdentityEXTptr;
        internal IntPtr MatrixLoadTranspose3x3fNVptr;
        internal IntPtr MatrixLoadTransposedEXTptr;
        internal IntPtr MatrixLoadTransposefEXTptr;
        internal IntPtr MatrixLoaddEXTptr;
        internal IntPtr MatrixLoadfEXTptr;
        internal IntPtr MatrixMult3x2fNVptr;
        internal IntPtr MatrixMult3x3fNVptr;
        internal IntPtr MatrixMultTranspose3x3fNVptr;
        internal IntPtr MatrixMultTransposedEXTptr;
        internal IntPtr MatrixMultTransposefEXTptr;
        internal IntPtr MatrixMultdEXTptr;
        internal IntPtr MatrixMultfEXTptr;
        internal IntPtr MatrixOrthoEXTptr;
        internal IntPtr MatrixPopEXTptr;
        internal IntPtr MatrixPushEXTptr;
        internal IntPtr MatrixRotatedEXTptr;
        internal IntPtr MatrixRotatefEXTptr;
        internal IntPtr MatrixScaledEXTptr;
        internal IntPtr MatrixScalefEXTptr;
        internal IntPtr MatrixTranslatedEXTptr;
        internal IntPtr MatrixTranslatefEXTptr;
        internal IntPtr MaxShaderCompilerThreadsARBptr;
        internal IntPtr MaxShaderCompilerThreadsKHRptr;
        internal IntPtr MemoryBarrierptr;
        internal IntPtr MemoryBarrierByRegionptr;
        internal IntPtr MemoryBarrierEXTptr;
        internal IntPtr MemoryObjectParameterivEXTptr;
        internal IntPtr MinSampleShadingptr;
        internal IntPtr MinSampleShadingARBptr;
        internal IntPtr MinmaxEXTptr;
        internal IntPtr MultMatrixxOESptr;
        internal IntPtr MultTransposeMatrixdARBptr;
        internal IntPtr MultTransposeMatrixfARBptr;
        internal IntPtr MultTransposeMatrixxOESptr;
        internal IntPtr MultiDrawArraysptr;
        internal IntPtr MultiDrawArraysEXTptr;
        internal IntPtr MultiDrawArraysIndirectptr;
        internal IntPtr MultiDrawArraysIndirectAMDptr;
        internal IntPtr MultiDrawArraysIndirectBindlessCountNVptr;
        internal IntPtr MultiDrawArraysIndirectBindlessNVptr;
        internal IntPtr MultiDrawArraysIndirectCountptr;
        internal IntPtr MultiDrawArraysIndirectCountARBptr;
        internal IntPtr MultiDrawElementArrayAPPLEptr;
        internal IntPtr MultiDrawElementsptr;
        internal IntPtr MultiDrawElementsBaseVertexptr;
        internal IntPtr MultiDrawElementsEXTptr;
        internal IntPtr MultiDrawElementsIndirectptr;
        internal IntPtr MultiDrawElementsIndirectAMDptr;
        internal IntPtr MultiDrawElementsIndirectBindlessCountNVptr;
        internal IntPtr MultiDrawElementsIndirectBindlessNVptr;
        internal IntPtr MultiDrawElementsIndirectCountptr;
        internal IntPtr MultiDrawElementsIndirectCountARBptr;
        internal IntPtr MultiDrawMeshTasksIndirectCountNVptr;
        internal IntPtr MultiDrawMeshTasksIndirectNVptr;
        internal IntPtr MultiDrawRangeElementArrayAPPLEptr;
        internal IntPtr MultiModeDrawArraysIBMptr;
        internal IntPtr MultiModeDrawElementsIBMptr;
        internal IntPtr MultiTexBufferEXTptr;
        internal IntPtr MultiTexCoord1bOESptr;
        internal IntPtr MultiTexCoord1bvOESptr;
        internal IntPtr MultiTexCoord1dARBptr;
        internal IntPtr MultiTexCoord1dvARBptr;
        internal IntPtr MultiTexCoord1fARBptr;
        internal IntPtr MultiTexCoord1fvARBptr;
        internal IntPtr MultiTexCoord1hNVptr;
        internal IntPtr MultiTexCoord1hvNVptr;
        internal IntPtr MultiTexCoord1iARBptr;
        internal IntPtr MultiTexCoord1ivARBptr;
        internal IntPtr MultiTexCoord1sARBptr;
        internal IntPtr MultiTexCoord1svARBptr;
        internal IntPtr MultiTexCoord1xOESptr;
        internal IntPtr MultiTexCoord1xvOESptr;
        internal IntPtr MultiTexCoord2bOESptr;
        internal IntPtr MultiTexCoord2bvOESptr;
        internal IntPtr MultiTexCoord2dARBptr;
        internal IntPtr MultiTexCoord2dvARBptr;
        internal IntPtr MultiTexCoord2fARBptr;
        internal IntPtr MultiTexCoord2fvARBptr;
        internal IntPtr MultiTexCoord2hNVptr;
        internal IntPtr MultiTexCoord2hvNVptr;
        internal IntPtr MultiTexCoord2iARBptr;
        internal IntPtr MultiTexCoord2ivARBptr;
        internal IntPtr MultiTexCoord2sARBptr;
        internal IntPtr MultiTexCoord2svARBptr;
        internal IntPtr MultiTexCoord2xOESptr;
        internal IntPtr MultiTexCoord2xvOESptr;
        internal IntPtr MultiTexCoord3bOESptr;
        internal IntPtr MultiTexCoord3bvOESptr;
        internal IntPtr MultiTexCoord3dARBptr;
        internal IntPtr MultiTexCoord3dvARBptr;
        internal IntPtr MultiTexCoord3fARBptr;
        internal IntPtr MultiTexCoord3fvARBptr;
        internal IntPtr MultiTexCoord3hNVptr;
        internal IntPtr MultiTexCoord3hvNVptr;
        internal IntPtr MultiTexCoord3iARBptr;
        internal IntPtr MultiTexCoord3ivARBptr;
        internal IntPtr MultiTexCoord3sARBptr;
        internal IntPtr MultiTexCoord3svARBptr;
        internal IntPtr MultiTexCoord3xOESptr;
        internal IntPtr MultiTexCoord3xvOESptr;
        internal IntPtr MultiTexCoord4bOESptr;
        internal IntPtr MultiTexCoord4bvOESptr;
        internal IntPtr MultiTexCoord4dARBptr;
        internal IntPtr MultiTexCoord4dvARBptr;
        internal IntPtr MultiTexCoord4fARBptr;
        internal IntPtr MultiTexCoord4fvARBptr;
        internal IntPtr MultiTexCoord4hNVptr;
        internal IntPtr MultiTexCoord4hvNVptr;
        internal IntPtr MultiTexCoord4iARBptr;
        internal IntPtr MultiTexCoord4ivARBptr;
        internal IntPtr MultiTexCoord4sARBptr;
        internal IntPtr MultiTexCoord4svARBptr;
        internal IntPtr MultiTexCoord4xOESptr;
        internal IntPtr MultiTexCoord4xvOESptr;
        internal IntPtr MultiTexCoordPointerEXTptr;
        internal IntPtr MultiTexEnvfEXTptr;
        internal IntPtr MultiTexEnvfvEXTptr;
        internal IntPtr MultiTexEnviEXTptr;
        internal IntPtr MultiTexEnvivEXTptr;
        internal IntPtr MultiTexGendEXTptr;
        internal IntPtr MultiTexGendvEXTptr;
        internal IntPtr MultiTexGenfEXTptr;
        internal IntPtr MultiTexGenfvEXTptr;
        internal IntPtr MultiTexGeniEXTptr;
        internal IntPtr MultiTexGenivEXTptr;
        internal IntPtr MultiTexImage1DEXTptr;
        internal IntPtr MultiTexImage2DEXTptr;
        internal IntPtr MultiTexImage3DEXTptr;
        internal IntPtr MultiTexParameterIivEXTptr;
        internal IntPtr MultiTexParameterIuivEXTptr;
        internal IntPtr MultiTexParameterfEXTptr;
        internal IntPtr MultiTexParameterfvEXTptr;
        internal IntPtr MultiTexParameteriEXTptr;
        internal IntPtr MultiTexParameterivEXTptr;
        internal IntPtr MultiTexRenderbufferEXTptr;
        internal IntPtr MultiTexSubImage1DEXTptr;
        internal IntPtr MultiTexSubImage2DEXTptr;
        internal IntPtr MultiTexSubImage3DEXTptr;
        internal IntPtr MulticastBarrierNVptr;
        internal IntPtr MulticastBlitFramebufferNVptr;
        internal IntPtr MulticastBufferSubDataNVptr;
        internal IntPtr MulticastCopyBufferSubDataNVptr;
        internal IntPtr MulticastCopyImageSubDataNVptr;
        internal IntPtr MulticastFramebufferSampleLocationsfvNVptr;
        internal IntPtr MulticastGetQueryObjecti64vNVptr;
        internal IntPtr MulticastGetQueryObjectivNVptr;
        internal IntPtr MulticastGetQueryObjectui64vNVptr;
        internal IntPtr MulticastGetQueryObjectuivNVptr;
        internal IntPtr MulticastScissorArrayvNVXptr;
        internal IntPtr MulticastViewportArrayvNVXptr;
        internal IntPtr MulticastViewportPositionWScaleNVXptr;
        internal IntPtr MulticastWaitSyncNVptr;
        internal IntPtr NamedBufferAttachMemoryNVptr;
        internal IntPtr NamedBufferDataptr;
        internal IntPtr NamedBufferDataEXTptr;
        internal IntPtr NamedBufferPageCommitmentARBptr;
        internal IntPtr NamedBufferPageCommitmentEXTptr;
        internal IntPtr NamedBufferPageCommitmentMemNVptr;
        internal IntPtr NamedBufferStorageptr;
        internal IntPtr NamedBufferStorageEXTptr;
        internal IntPtr NamedBufferStorageExternalEXTptr;
        internal IntPtr NamedBufferStorageMemEXTptr;
        internal IntPtr NamedBufferSubDataptr;
        internal IntPtr NamedBufferSubDataEXTptr;
        internal IntPtr NamedCopyBufferSubDataEXTptr;
        internal IntPtr NamedFramebufferDrawBufferptr;
        internal IntPtr NamedFramebufferDrawBuffersptr;
        internal IntPtr NamedFramebufferParameteriptr;
        internal IntPtr NamedFramebufferParameteriEXTptr;
        internal IntPtr NamedFramebufferReadBufferptr;
        internal IntPtr NamedFramebufferRenderbufferptr;
        internal IntPtr NamedFramebufferRenderbufferEXTptr;
        internal IntPtr NamedFramebufferSampleLocationsfvARBptr;
        internal IntPtr NamedFramebufferSampleLocationsfvNVptr;
        internal IntPtr NamedFramebufferSamplePositionsfvAMDptr;
        internal IntPtr NamedFramebufferTextureptr;
        internal IntPtr NamedFramebufferTexture1DEXTptr;
        internal IntPtr NamedFramebufferTexture2DEXTptr;
        internal IntPtr NamedFramebufferTexture3DEXTptr;
        internal IntPtr NamedFramebufferTextureEXTptr;
        internal IntPtr NamedFramebufferTextureFaceEXTptr;
        internal IntPtr NamedFramebufferTextureLayerptr;
        internal IntPtr NamedFramebufferTextureLayerEXTptr;
        internal IntPtr NamedProgramLocalParameter4dEXTptr;
        internal IntPtr NamedProgramLocalParameter4dvEXTptr;
        internal IntPtr NamedProgramLocalParameter4fEXTptr;
        internal IntPtr NamedProgramLocalParameter4fvEXTptr;
        internal IntPtr NamedProgramLocalParameterI4iEXTptr;
        internal IntPtr NamedProgramLocalParameterI4ivEXTptr;
        internal IntPtr NamedProgramLocalParameterI4uiEXTptr;
        internal IntPtr NamedProgramLocalParameterI4uivEXTptr;
        internal IntPtr NamedProgramLocalParameters4fvEXTptr;
        internal IntPtr NamedProgramLocalParametersI4ivEXTptr;
        internal IntPtr NamedProgramLocalParametersI4uivEXTptr;
        internal IntPtr NamedProgramStringEXTptr;
        internal IntPtr NamedRenderbufferStorageptr;
        internal IntPtr NamedRenderbufferStorageEXTptr;
        internal IntPtr NamedRenderbufferStorageMultisampleptr;
        internal IntPtr NamedRenderbufferStorageMultisampleAdvancedAMDptr;
        internal IntPtr NamedRenderbufferStorageMultisampleCoverageEXTptr;
        internal IntPtr NamedRenderbufferStorageMultisampleEXTptr;
        internal IntPtr NamedStringARBptr;
        internal IntPtr NewObjectBufferATIptr;
        internal IntPtr Normal3fVertex3fSUNptr;
        internal IntPtr Normal3fVertex3fvSUNptr;
        internal IntPtr Normal3hNVptr;
        internal IntPtr Normal3hvNVptr;
        internal IntPtr Normal3xOESptr;
        internal IntPtr Normal3xvOESptr;
        internal IntPtr NormalFormatNVptr;
        internal IntPtr NormalPointerEXTptr;
        internal IntPtr NormalPointerListIBMptr;
        internal IntPtr NormalPointervINTELptr;
        internal IntPtr NormalStream3bATIptr;
        internal IntPtr NormalStream3bvATIptr;
        internal IntPtr NormalStream3dATIptr;
        internal IntPtr NormalStream3dvATIptr;
        internal IntPtr NormalStream3fATIptr;
        internal IntPtr NormalStream3fvATIptr;
        internal IntPtr NormalStream3iATIptr;
        internal IntPtr NormalStream3ivATIptr;
        internal IntPtr NormalStream3sATIptr;
        internal IntPtr NormalStream3svATIptr;
        internal IntPtr ObjectLabelptr;
        internal IntPtr ObjectPtrLabelptr;
        internal IntPtr ObjectPurgeableAPPLEptr;
        internal IntPtr ObjectUnpurgeableAPPLEptr;
        internal IntPtr OrthofOESptr;
        internal IntPtr OrthoxOESptr;
        internal IntPtr PNTrianglesfATIptr;
        internal IntPtr PNTrianglesiATIptr;
        internal IntPtr PassTexCoordATIptr;
        internal IntPtr PassThroughxOESptr;
        internal IntPtr PatchParameterfvptr;
        internal IntPtr PatchParameteriptr;
        internal IntPtr PathCommandsNVptr;
        internal IntPtr PathCoordsNVptr;
        internal IntPtr PathCoverDepthFuncNVptr;
        internal IntPtr PathDashArrayNVptr;
        internal IntPtr PathGlyphIndexArrayNVptr;
        internal IntPtr PathGlyphIndexRangeNVptr;
        internal IntPtr PathGlyphRangeNVptr;
        internal IntPtr PathGlyphsNVptr;
        internal IntPtr PathMemoryGlyphIndexArrayNVptr;
        internal IntPtr PathParameterfNVptr;
        internal IntPtr PathParameterfvNVptr;
        internal IntPtr PathParameteriNVptr;
        internal IntPtr PathParameterivNVptr;
        internal IntPtr PathStencilDepthOffsetNVptr;
        internal IntPtr PathStencilFuncNVptr;
        internal IntPtr PathStringNVptr;
        internal IntPtr PathSubCommandsNVptr;
        internal IntPtr PathSubCoordsNVptr;
        internal IntPtr PauseTransformFeedbackptr;
        internal IntPtr PauseTransformFeedbackNVptr;
        internal IntPtr PixelDataRangeNVptr;
        internal IntPtr PixelMapxptr;
        internal IntPtr PixelStorefptr;
        internal IntPtr PixelStoreiptr;
        internal IntPtr PixelStorexptr;
        internal IntPtr PixelTexGenParameterfSGISptr;
        internal IntPtr PixelTexGenParameterfvSGISptr;
        internal IntPtr PixelTexGenParameteriSGISptr;
        internal IntPtr PixelTexGenParameterivSGISptr;
        internal IntPtr PixelTexGenSGIXptr;
        internal IntPtr PixelTransferxOESptr;
        internal IntPtr PixelTransformParameterfEXTptr;
        internal IntPtr PixelTransformParameterfvEXTptr;
        internal IntPtr PixelTransformParameteriEXTptr;
        internal IntPtr PixelTransformParameterivEXTptr;
        internal IntPtr PixelZoomxOESptr;
        internal IntPtr PointAlongPathNVptr;
        internal IntPtr PointParameterfptr;
        internal IntPtr PointParameterfARBptr;
        internal IntPtr PointParameterfEXTptr;
        internal IntPtr PointParameterfSGISptr;
        internal IntPtr PointParameterfvptr;
        internal IntPtr PointParameterfvARBptr;
        internal IntPtr PointParameterfvEXTptr;
        internal IntPtr PointParameterfvSGISptr;
        internal IntPtr PointParameteriptr;
        internal IntPtr PointParameteriNVptr;
        internal IntPtr PointParameterivptr;
        internal IntPtr PointParameterivNVptr;
        internal IntPtr PointParameterxvOESptr;
        internal IntPtr PointSizeptr;
        internal IntPtr PointSizexOESptr;
        internal IntPtr PollAsyncSGIXptr;
        internal IntPtr PollInstrumentsSGIXptr;
        internal IntPtr PolygonModeptr;
        internal IntPtr PolygonOffsetptr;
        internal IntPtr PolygonOffsetClampptr;
        internal IntPtr PolygonOffsetClampEXTptr;
        internal IntPtr PolygonOffsetEXTptr;
        internal IntPtr PolygonOffsetxOESptr;
        internal IntPtr PopDebugGroupptr;
        internal IntPtr PopGroupMarkerEXTptr;
        internal IntPtr PresentFrameDualFillNVptr;
        internal IntPtr PresentFrameKeyedNVptr;
        internal IntPtr PrimitiveBoundingBoxARBptr;
        internal IntPtr PrimitiveRestartIndexptr;
        internal IntPtr PrimitiveRestartIndexNVptr;
        internal IntPtr PrimitiveRestartNVptr;
        internal IntPtr PrioritizeTexturesEXTptr;
        internal IntPtr PrioritizeTexturesxOESptr;
        internal IntPtr ProgramBinaryptr;
        internal IntPtr ProgramBufferParametersIivNVptr;
        internal IntPtr ProgramBufferParametersIuivNVptr;
        internal IntPtr ProgramBufferParametersfvNVptr;
        internal IntPtr ProgramEnvParameter4dARBptr;
        internal IntPtr ProgramEnvParameter4dvARBptr;
        internal IntPtr ProgramEnvParameter4fARBptr;
        internal IntPtr ProgramEnvParameter4fvARBptr;
        internal IntPtr ProgramEnvParameterI4iNVptr;
        internal IntPtr ProgramEnvParameterI4ivNVptr;
        internal IntPtr ProgramEnvParameterI4uiNVptr;
        internal IntPtr ProgramEnvParameterI4uivNVptr;
        internal IntPtr ProgramEnvParameters4fvEXTptr;
        internal IntPtr ProgramEnvParametersI4ivNVptr;
        internal IntPtr ProgramEnvParametersI4uivNVptr;
        internal IntPtr ProgramLocalParameter4dARBptr;
        internal IntPtr ProgramLocalParameter4dvARBptr;
        internal IntPtr ProgramLocalParameter4fARBptr;
        internal IntPtr ProgramLocalParameter4fvARBptr;
        internal IntPtr ProgramLocalParameterI4iNVptr;
        internal IntPtr ProgramLocalParameterI4ivNVptr;
        internal IntPtr ProgramLocalParameterI4uiNVptr;
        internal IntPtr ProgramLocalParameterI4uivNVptr;
        internal IntPtr ProgramLocalParameters4fvEXTptr;
        internal IntPtr ProgramLocalParametersI4ivNVptr;
        internal IntPtr ProgramLocalParametersI4uivNVptr;
        internal IntPtr ProgramNamedParameter4dNVptr;
        internal IntPtr ProgramNamedParameter4dvNVptr;
        internal IntPtr ProgramNamedParameter4fNVptr;
        internal IntPtr ProgramNamedParameter4fvNVptr;
        internal IntPtr ProgramParameter4dNVptr;
        internal IntPtr ProgramParameter4dvNVptr;
        internal IntPtr ProgramParameter4fNVptr;
        internal IntPtr ProgramParameter4fvNVptr;
        internal IntPtr ProgramParameteriptr;
        internal IntPtr ProgramParameteriARBptr;
        internal IntPtr ProgramParameteriEXTptr;
        internal IntPtr ProgramParameters4dvNVptr;
        internal IntPtr ProgramParameters4fvNVptr;
        internal IntPtr ProgramPathFragmentInputGenNVptr;
        internal IntPtr ProgramStringARBptr;
        internal IntPtr ProgramSubroutineParametersuivNVptr;
        internal IntPtr ProgramUniform1dptr;
        internal IntPtr ProgramUniform1dEXTptr;
        internal IntPtr ProgramUniform1dvptr;
        internal IntPtr ProgramUniform1dvEXTptr;
        internal IntPtr ProgramUniform1fptr;
        internal IntPtr ProgramUniform1fEXTptr;
        internal IntPtr ProgramUniform1fvptr;
        internal IntPtr ProgramUniform1fvEXTptr;
        internal IntPtr ProgramUniform1iptr;
        internal IntPtr ProgramUniform1i64ARBptr;
        internal IntPtr ProgramUniform1i64NVptr;
        internal IntPtr ProgramUniform1i64vARBptr;
        internal IntPtr ProgramUniform1i64vNVptr;
        internal IntPtr ProgramUniform1iEXTptr;
        internal IntPtr ProgramUniform1ivptr;
        internal IntPtr ProgramUniform1ivEXTptr;
        internal IntPtr ProgramUniform1uiptr;
        internal IntPtr ProgramUniform1ui64ARBptr;
        internal IntPtr ProgramUniform1ui64NVptr;
        internal IntPtr ProgramUniform1ui64vARBptr;
        internal IntPtr ProgramUniform1ui64vNVptr;
        internal IntPtr ProgramUniform1uiEXTptr;
        internal IntPtr ProgramUniform1uivptr;
        internal IntPtr ProgramUniform1uivEXTptr;
        internal IntPtr ProgramUniform2dptr;
        internal IntPtr ProgramUniform2dEXTptr;
        internal IntPtr ProgramUniform2dvptr;
        internal IntPtr ProgramUniform2dvEXTptr;
        internal IntPtr ProgramUniform2fptr;
        internal IntPtr ProgramUniform2fEXTptr;
        internal IntPtr ProgramUniform2fvptr;
        internal IntPtr ProgramUniform2fvEXTptr;
        internal IntPtr ProgramUniform2iptr;
        internal IntPtr ProgramUniform2i64ARBptr;
        internal IntPtr ProgramUniform2i64NVptr;
        internal IntPtr ProgramUniform2i64vARBptr;
        internal IntPtr ProgramUniform2i64vNVptr;
        internal IntPtr ProgramUniform2iEXTptr;
        internal IntPtr ProgramUniform2ivptr;
        internal IntPtr ProgramUniform2ivEXTptr;
        internal IntPtr ProgramUniform2uiptr;
        internal IntPtr ProgramUniform2ui64ARBptr;
        internal IntPtr ProgramUniform2ui64NVptr;
        internal IntPtr ProgramUniform2ui64vARBptr;
        internal IntPtr ProgramUniform2ui64vNVptr;
        internal IntPtr ProgramUniform2uiEXTptr;
        internal IntPtr ProgramUniform2uivptr;
        internal IntPtr ProgramUniform2uivEXTptr;
        internal IntPtr ProgramUniform3dptr;
        internal IntPtr ProgramUniform3dEXTptr;
        internal IntPtr ProgramUniform3dvptr;
        internal IntPtr ProgramUniform3dvEXTptr;
        internal IntPtr ProgramUniform3fptr;
        internal IntPtr ProgramUniform3fEXTptr;
        internal IntPtr ProgramUniform3fvptr;
        internal IntPtr ProgramUniform3fvEXTptr;
        internal IntPtr ProgramUniform3iptr;
        internal IntPtr ProgramUniform3i64ARBptr;
        internal IntPtr ProgramUniform3i64NVptr;
        internal IntPtr ProgramUniform3i64vARBptr;
        internal IntPtr ProgramUniform3i64vNVptr;
        internal IntPtr ProgramUniform3iEXTptr;
        internal IntPtr ProgramUniform3ivptr;
        internal IntPtr ProgramUniform3ivEXTptr;
        internal IntPtr ProgramUniform3uiptr;
        internal IntPtr ProgramUniform3ui64ARBptr;
        internal IntPtr ProgramUniform3ui64NVptr;
        internal IntPtr ProgramUniform3ui64vARBptr;
        internal IntPtr ProgramUniform3ui64vNVptr;
        internal IntPtr ProgramUniform3uiEXTptr;
        internal IntPtr ProgramUniform3uivptr;
        internal IntPtr ProgramUniform3uivEXTptr;
        internal IntPtr ProgramUniform4dptr;
        internal IntPtr ProgramUniform4dEXTptr;
        internal IntPtr ProgramUniform4dvptr;
        internal IntPtr ProgramUniform4dvEXTptr;
        internal IntPtr ProgramUniform4fptr;
        internal IntPtr ProgramUniform4fEXTptr;
        internal IntPtr ProgramUniform4fvptr;
        internal IntPtr ProgramUniform4fvEXTptr;
        internal IntPtr ProgramUniform4iptr;
        internal IntPtr ProgramUniform4i64ARBptr;
        internal IntPtr ProgramUniform4i64NVptr;
        internal IntPtr ProgramUniform4i64vARBptr;
        internal IntPtr ProgramUniform4i64vNVptr;
        internal IntPtr ProgramUniform4iEXTptr;
        internal IntPtr ProgramUniform4ivptr;
        internal IntPtr ProgramUniform4ivEXTptr;
        internal IntPtr ProgramUniform4uiptr;
        internal IntPtr ProgramUniform4ui64ARBptr;
        internal IntPtr ProgramUniform4ui64NVptr;
        internal IntPtr ProgramUniform4ui64vARBptr;
        internal IntPtr ProgramUniform4ui64vNVptr;
        internal IntPtr ProgramUniform4uiEXTptr;
        internal IntPtr ProgramUniform4uivptr;
        internal IntPtr ProgramUniform4uivEXTptr;
        internal IntPtr ProgramUniformHandleui64ARBptr;
        internal IntPtr ProgramUniformHandleui64NVptr;
        internal IntPtr ProgramUniformHandleui64vARBptr;
        internal IntPtr ProgramUniformHandleui64vNVptr;
        internal IntPtr ProgramUniformMatrix2dvptr;
        internal IntPtr ProgramUniformMatrix2dvEXTptr;
        internal IntPtr ProgramUniformMatrix2fvptr;
        internal IntPtr ProgramUniformMatrix2fvEXTptr;
        internal IntPtr ProgramUniformMatrix2x3dvptr;
        internal IntPtr ProgramUniformMatrix2x3dvEXTptr;
        internal IntPtr ProgramUniformMatrix2x3fvptr;
        internal IntPtr ProgramUniformMatrix2x3fvEXTptr;
        internal IntPtr ProgramUniformMatrix2x4dvptr;
        internal IntPtr ProgramUniformMatrix2x4dvEXTptr;
        internal IntPtr ProgramUniformMatrix2x4fvptr;
        internal IntPtr ProgramUniformMatrix2x4fvEXTptr;
        internal IntPtr ProgramUniformMatrix3dvptr;
        internal IntPtr ProgramUniformMatrix3dvEXTptr;
        internal IntPtr ProgramUniformMatrix3fvptr;
        internal IntPtr ProgramUniformMatrix3fvEXTptr;
        internal IntPtr ProgramUniformMatrix3x2dvptr;
        internal IntPtr ProgramUniformMatrix3x2dvEXTptr;
        internal IntPtr ProgramUniformMatrix3x2fvptr;
        internal IntPtr ProgramUniformMatrix3x2fvEXTptr;
        internal IntPtr ProgramUniformMatrix3x4dvptr;
        internal IntPtr ProgramUniformMatrix3x4dvEXTptr;
        internal IntPtr ProgramUniformMatrix3x4fvptr;
        internal IntPtr ProgramUniformMatrix3x4fvEXTptr;
        internal IntPtr ProgramUniformMatrix4dvptr;
        internal IntPtr ProgramUniformMatrix4dvEXTptr;
        internal IntPtr ProgramUniformMatrix4fvptr;
        internal IntPtr ProgramUniformMatrix4fvEXTptr;
        internal IntPtr ProgramUniformMatrix4x2dvptr;
        internal IntPtr ProgramUniformMatrix4x2dvEXTptr;
        internal IntPtr ProgramUniformMatrix4x2fvptr;
        internal IntPtr ProgramUniformMatrix4x2fvEXTptr;
        internal IntPtr ProgramUniformMatrix4x3dvptr;
        internal IntPtr ProgramUniformMatrix4x3dvEXTptr;
        internal IntPtr ProgramUniformMatrix4x3fvptr;
        internal IntPtr ProgramUniformMatrix4x3fvEXTptr;
        internal IntPtr ProgramUniformui64NVptr;
        internal IntPtr ProgramUniformui64vNVptr;
        internal IntPtr ProgramVertexLimitNVptr;
        internal IntPtr ProvokingVertexptr;
        internal IntPtr ProvokingVertexEXTptr;
        internal IntPtr PushClientAttribDefaultEXTptr;
        internal IntPtr PushDebugGroupptr;
        internal IntPtr PushGroupMarkerEXTptr;
        internal IntPtr QueryCounterptr;
        internal IntPtr QueryMatrixxOESptr;
        internal IntPtr QueryObjectParameteruiAMDptr;
        internal IntPtr QueryResourceNVptr;
        internal IntPtr QueryResourceTagNVptr;
        internal IntPtr RasterPos2xOESptr;
        internal IntPtr RasterPos2xvOESptr;
        internal IntPtr RasterPos3xOESptr;
        internal IntPtr RasterPos3xvOESptr;
        internal IntPtr RasterPos4xOESptr;
        internal IntPtr RasterPos4xvOESptr;
        internal IntPtr RasterSamplesEXTptr;
        internal IntPtr ReadBufferptr;
        internal IntPtr ReadInstrumentsSGIXptr;
        internal IntPtr ReadPixelsptr;
        internal IntPtr ReadnPixelsptr;
        internal IntPtr ReadnPixelsARBptr;
        internal IntPtr RectxOESptr;
        internal IntPtr RectxvOESptr;
        internal IntPtr ReferencePlaneSGIXptr;
        internal IntPtr ReleaseKeyedMutexWin32EXTptr;
        internal IntPtr ReleaseShaderCompilerptr;
        internal IntPtr RenderGpuMaskNVptr;
        internal IntPtr RenderbufferStorageptr;
        internal IntPtr RenderbufferStorageEXTptr;
        internal IntPtr RenderbufferStorageMultisampleptr;
        internal IntPtr RenderbufferStorageMultisampleAdvancedAMDptr;
        internal IntPtr RenderbufferStorageMultisampleCoverageNVptr;
        internal IntPtr RenderbufferStorageMultisampleEXTptr;
        internal IntPtr ReplacementCodePointerSUNptr;
        internal IntPtr ReplacementCodeubSUNptr;
        internal IntPtr ReplacementCodeubvSUNptr;
        internal IntPtr ReplacementCodeuiColor3fVertex3fSUNptr;
        internal IntPtr ReplacementCodeuiColor3fVertex3fvSUNptr;
        internal IntPtr ReplacementCodeuiColor4fNormal3fVertex3fSUNptr;
        internal IntPtr ReplacementCodeuiColor4fNormal3fVertex3fvSUNptr;
        internal IntPtr ReplacementCodeuiColor4ubVertex3fSUNptr;
        internal IntPtr ReplacementCodeuiColor4ubVertex3fvSUNptr;
        internal IntPtr ReplacementCodeuiNormal3fVertex3fSUNptr;
        internal IntPtr ReplacementCodeuiNormal3fVertex3fvSUNptr;
        internal IntPtr ReplacementCodeuiSUNptr;
        internal IntPtr ReplacementCodeuiTexCoord2fColor4fNormal3fVertex3fSUNptr;
        internal IntPtr ReplacementCodeuiTexCoord2fColor4fNormal3fVertex3fvSUNptr;
        internal IntPtr ReplacementCodeuiTexCoord2fNormal3fVertex3fSUNptr;
        internal IntPtr ReplacementCodeuiTexCoord2fNormal3fVertex3fvSUNptr;
        internal IntPtr ReplacementCodeuiTexCoord2fVertex3fSUNptr;
        internal IntPtr ReplacementCodeuiTexCoord2fVertex3fvSUNptr;
        internal IntPtr ReplacementCodeuiVertex3fSUNptr;
        internal IntPtr ReplacementCodeuiVertex3fvSUNptr;
        internal IntPtr ReplacementCodeuivSUNptr;
        internal IntPtr ReplacementCodeusSUNptr;
        internal IntPtr ReplacementCodeusvSUNptr;
        internal IntPtr RequestResidentProgramsNVptr;
        internal IntPtr ResetHistogramEXTptr;
        internal IntPtr ResetMemoryObjectParameterNVptr;
        internal IntPtr ResetMinmaxEXTptr;
        internal IntPtr ResizeBuffersMESAptr;
        internal IntPtr ResolveDepthValuesNVptr;
        internal IntPtr ResumeTransformFeedbackptr;
        internal IntPtr ResumeTransformFeedbackNVptr;
        internal IntPtr RotatexOESptr;
        internal IntPtr SampleCoverageptr;
        internal IntPtr SampleCoverageARBptr;
        internal IntPtr SampleMapATIptr;
        internal IntPtr SampleMaskEXTptr;
        internal IntPtr SampleMaskIndexedNVptr;
        internal IntPtr SampleMaskSGISptr;
        internal IntPtr SampleMaskiptr;
        internal IntPtr SamplePatternEXTptr;
        internal IntPtr SamplePatternSGISptr;
        internal IntPtr SamplerParameterIivptr;
        internal IntPtr SamplerParameterIuivptr;
        internal IntPtr SamplerParameterfptr;
        internal IntPtr SamplerParameterfvptr;
        internal IntPtr SamplerParameteriptr;
        internal IntPtr SamplerParameterivptr;
        internal IntPtr ScalexOESptr;
        internal IntPtr Scissorptr;
        internal IntPtr ScissorArrayvptr;
        internal IntPtr ScissorExclusiveArrayvNVptr;
        internal IntPtr ScissorExclusiveNVptr;
        internal IntPtr ScissorIndexedptr;
        internal IntPtr ScissorIndexedvptr;
        internal IntPtr SecondaryColor3bEXTptr;
        internal IntPtr SecondaryColor3bvEXTptr;
        internal IntPtr SecondaryColor3dEXTptr;
        internal IntPtr SecondaryColor3dvEXTptr;
        internal IntPtr SecondaryColor3fEXTptr;
        internal IntPtr SecondaryColor3fvEXTptr;
        internal IntPtr SecondaryColor3hNVptr;
        internal IntPtr SecondaryColor3hvNVptr;
        internal IntPtr SecondaryColor3iEXTptr;
        internal IntPtr SecondaryColor3ivEXTptr;
        internal IntPtr SecondaryColor3sEXTptr;
        internal IntPtr SecondaryColor3svEXTptr;
        internal IntPtr SecondaryColor3ubEXTptr;
        internal IntPtr SecondaryColor3ubvEXTptr;
        internal IntPtr SecondaryColor3uiEXTptr;
        internal IntPtr SecondaryColor3uivEXTptr;
        internal IntPtr SecondaryColor3usEXTptr;
        internal IntPtr SecondaryColor3usvEXTptr;
        internal IntPtr SecondaryColorFormatNVptr;
        internal IntPtr SecondaryColorPointerEXTptr;
        internal IntPtr SecondaryColorPointerListIBMptr;
        internal IntPtr SelectPerfMonitorCountersAMDptr;
        internal IntPtr SemaphoreParameterivNVptr;
        internal IntPtr SemaphoreParameterui64vEXTptr;
        internal IntPtr SeparableFilter2DEXTptr;
        internal IntPtr SetFenceAPPLEptr;
        internal IntPtr SetFenceNVptr;
        internal IntPtr SetFragmentShaderConstantATIptr;
        internal IntPtr SetInvariantEXTptr;
        internal IntPtr SetLocalConstantEXTptr;
        internal IntPtr SetMultisamplefvAMDptr;
        internal IntPtr ShaderBinaryptr;
        internal IntPtr ShaderOp1EXTptr;
        internal IntPtr ShaderOp2EXTptr;
        internal IntPtr ShaderOp3EXTptr;
        internal IntPtr ShaderSourceptr;
        internal IntPtr ShaderSourceARBptr;
        internal IntPtr ShaderStorageBlockBindingptr;
        internal IntPtr ShadingRateImageBarrierNVptr;
        internal IntPtr ShadingRateImagePaletteNVptr;
        internal IntPtr ShadingRateSampleOrderCustomNVptr;
        internal IntPtr ShadingRateSampleOrderNVptr;
        internal IntPtr SharpenTexFuncSGISptr;
        internal IntPtr SignalSemaphoreEXTptr;
        internal IntPtr SignalSemaphoreui64NVXptr;
        internal IntPtr SignalVkFenceNVptr;
        internal IntPtr SignalVkSemaphoreNVptr;
        internal IntPtr SpecializeShaderptr;
        internal IntPtr SpecializeShaderARBptr;
        internal IntPtr SpriteParameterfSGIXptr;
        internal IntPtr SpriteParameterfvSGIXptr;
        internal IntPtr SpriteParameteriSGIXptr;
        internal IntPtr SpriteParameterivSGIXptr;
        internal IntPtr StartInstrumentsSGIXptr;
        internal IntPtr StateCaptureNVptr;
        internal IntPtr StencilClearTagEXTptr;
        internal IntPtr StencilFillPathInstancedNVptr;
        internal IntPtr StencilFillPathNVptr;
        internal IntPtr StencilFuncptr;
        internal IntPtr StencilFuncSeparateptr;
        internal IntPtr StencilFuncSeparateATIptr;
        internal IntPtr StencilMaskptr;
        internal IntPtr StencilMaskSeparateptr;
        internal IntPtr StencilOpptr;
        internal IntPtr StencilOpSeparateptr;
        internal IntPtr StencilOpSeparateATIptr;
        internal IntPtr StencilOpValueAMDptr;
        internal IntPtr StencilStrokePathInstancedNVptr;
        internal IntPtr StencilStrokePathNVptr;
        internal IntPtr StencilThenCoverFillPathInstancedNVptr;
        internal IntPtr StencilThenCoverFillPathNVptr;
        internal IntPtr StencilThenCoverStrokePathInstancedNVptr;
        internal IntPtr StencilThenCoverStrokePathNVptr;
        internal IntPtr StopInstrumentsSGIXptr;
        internal IntPtr StringMarkerGREMEDYptr;
        internal IntPtr SubpixelPrecisionBiasNVptr;
        internal IntPtr SwizzleEXTptr;
        internal IntPtr SyncTextureINTELptr;
        internal IntPtr TagSampleBufferSGIXptr;
        internal IntPtr Tangent3bEXTptr;
        internal IntPtr Tangent3bvEXTptr;
        internal IntPtr Tangent3dEXTptr;
        internal IntPtr Tangent3dvEXTptr;
        internal IntPtr Tangent3fEXTptr;
        internal IntPtr Tangent3fvEXTptr;
        internal IntPtr Tangent3iEXTptr;
        internal IntPtr Tangent3ivEXTptr;
        internal IntPtr Tangent3sEXTptr;
        internal IntPtr Tangent3svEXTptr;
        internal IntPtr TangentPointerEXTptr;
        internal IntPtr TbufferMask3DFXptr;
        internal IntPtr TessellationFactorAMDptr;
        internal IntPtr TessellationModeAMDptr;
        internal IntPtr TestFenceAPPLEptr;
        internal IntPtr TestFenceNVptr;
        internal IntPtr TestObjectAPPLEptr;
        internal IntPtr TexAttachMemoryNVptr;
        internal IntPtr TexBufferptr;
        internal IntPtr TexBufferARBptr;
        internal IntPtr TexBufferEXTptr;
        internal IntPtr TexBufferRangeptr;
        internal IntPtr TexBumpParameterfvATIptr;
        internal IntPtr TexBumpParameterivATIptr;
        internal IntPtr TexCoord1bOESptr;
        internal IntPtr TexCoord1bvOESptr;
        internal IntPtr TexCoord1hNVptr;
        internal IntPtr TexCoord1hvNVptr;
        internal IntPtr TexCoord1xOESptr;
        internal IntPtr TexCoord1xvOESptr;
        internal IntPtr TexCoord2bOESptr;
        internal IntPtr TexCoord2bvOESptr;
        internal IntPtr TexCoord2fColor3fVertex3fSUNptr;
        internal IntPtr TexCoord2fColor3fVertex3fvSUNptr;
        internal IntPtr TexCoord2fColor4fNormal3fVertex3fSUNptr;
        internal IntPtr TexCoord2fColor4fNormal3fVertex3fvSUNptr;
        internal IntPtr TexCoord2fColor4ubVertex3fSUNptr;
        internal IntPtr TexCoord2fColor4ubVertex3fvSUNptr;
        internal IntPtr TexCoord2fNormal3fVertex3fSUNptr;
        internal IntPtr TexCoord2fNormal3fVertex3fvSUNptr;
        internal IntPtr TexCoord2fVertex3fSUNptr;
        internal IntPtr TexCoord2fVertex3fvSUNptr;
        internal IntPtr TexCoord2hNVptr;
        internal IntPtr TexCoord2hvNVptr;
        internal IntPtr TexCoord2xOESptr;
        internal IntPtr TexCoord2xvOESptr;
        internal IntPtr TexCoord3bOESptr;
        internal IntPtr TexCoord3bvOESptr;
        internal IntPtr TexCoord3hNVptr;
        internal IntPtr TexCoord3hvNVptr;
        internal IntPtr TexCoord3xOESptr;
        internal IntPtr TexCoord3xvOESptr;
        internal IntPtr TexCoord4bOESptr;
        internal IntPtr TexCoord4bvOESptr;
        internal IntPtr TexCoord4fColor4fNormal3fVertex4fSUNptr;
        internal IntPtr TexCoord4fColor4fNormal3fVertex4fvSUNptr;
        internal IntPtr TexCoord4fVertex4fSUNptr;
        internal IntPtr TexCoord4fVertex4fvSUNptr;
        internal IntPtr TexCoord4hNVptr;
        internal IntPtr TexCoord4hvNVptr;
        internal IntPtr TexCoord4xOESptr;
        internal IntPtr TexCoord4xvOESptr;
        internal IntPtr TexCoordFormatNVptr;
        internal IntPtr TexCoordPointerEXTptr;
        internal IntPtr TexCoordPointerListIBMptr;
        internal IntPtr TexCoordPointervINTELptr;
        internal IntPtr TexEnvxOESptr;
        internal IntPtr TexEnvxvOESptr;
        internal IntPtr TexFilterFuncSGISptr;
        internal IntPtr TexGenxOESptr;
        internal IntPtr TexGenxvOESptr;
        internal IntPtr TexImage1Dptr;
        internal IntPtr TexImage2Dptr;
        internal IntPtr TexImage2DMultisampleptr;
        internal IntPtr TexImage2DMultisampleCoverageNVptr;
        internal IntPtr TexImage3Dptr;
        internal IntPtr TexImage3DEXTptr;
        internal IntPtr TexImage3DMultisampleptr;
        internal IntPtr TexImage3DMultisampleCoverageNVptr;
        internal IntPtr TexImage4DSGISptr;
        internal IntPtr TexPageCommitmentARBptr;
        internal IntPtr TexPageCommitmentMemNVptr;
        internal IntPtr TexParameterIivptr;
        internal IntPtr TexParameterIivEXTptr;
        internal IntPtr TexParameterIuivptr;
        internal IntPtr TexParameterIuivEXTptr;
        internal IntPtr TexParameterfptr;
        internal IntPtr TexParameterfvptr;
        internal IntPtr TexParameteriptr;
        internal IntPtr TexParameterivptr;
        internal IntPtr TexParameterxOESptr;
        internal IntPtr TexParameterxvOESptr;
        internal IntPtr TexRenderbufferNVptr;
        internal IntPtr TexStorage1Dptr;
        internal IntPtr TexStorage1DEXTptr;
        internal IntPtr TexStorage2Dptr;
        internal IntPtr TexStorage2DEXTptr;
        internal IntPtr TexStorage2DMultisampleptr;
        internal IntPtr TexStorage3Dptr;
        internal IntPtr TexStorage3DEXTptr;
        internal IntPtr TexStorage3DMultisampleptr;
        internal IntPtr TexStorageMem1DEXTptr;
        internal IntPtr TexStorageMem2DEXTptr;
        internal IntPtr TexStorageMem2DMultisampleEXTptr;
        internal IntPtr TexStorageMem3DEXTptr;
        internal IntPtr TexStorageMem3DMultisampleEXTptr;
        internal IntPtr TexStorageSparseAMDptr;
        internal IntPtr TexSubImage1Dptr;
        internal IntPtr TexSubImage1DEXTptr;
        internal IntPtr TexSubImage2Dptr;
        internal IntPtr TexSubImage2DEXTptr;
        internal IntPtr TexSubImage3Dptr;
        internal IntPtr TexSubImage3DEXTptr;
        internal IntPtr TexSubImage4DSGISptr;
        internal IntPtr TextureAttachMemoryNVptr;
        internal IntPtr TextureBarrierptr;
        internal IntPtr TextureBarrierNVptr;
        internal IntPtr TextureBufferptr;
        internal IntPtr TextureBufferEXTptr;
        internal IntPtr TextureBufferRangeptr;
        internal IntPtr TextureBufferRangeEXTptr;
        internal IntPtr TextureColorMaskSGISptr;
        internal IntPtr TextureImage1DEXTptr;
        internal IntPtr TextureImage2DEXTptr;
        internal IntPtr TextureImage2DMultisampleCoverageNVptr;
        internal IntPtr TextureImage2DMultisampleNVptr;
        internal IntPtr TextureImage3DEXTptr;
        internal IntPtr TextureImage3DMultisampleCoverageNVptr;
        internal IntPtr TextureImage3DMultisampleNVptr;
        internal IntPtr TextureLightEXTptr;
        internal IntPtr TextureMaterialEXTptr;
        internal IntPtr TextureNormalEXTptr;
        internal IntPtr TexturePageCommitmentEXTptr;
        internal IntPtr TexturePageCommitmentMemNVptr;
        internal IntPtr TextureParameterIivptr;
        internal IntPtr TextureParameterIivEXTptr;
        internal IntPtr TextureParameterIuivptr;
        internal IntPtr TextureParameterIuivEXTptr;
        internal IntPtr TextureParameterfptr;
        internal IntPtr TextureParameterfEXTptr;
        internal IntPtr TextureParameterfvptr;
        internal IntPtr TextureParameterfvEXTptr;
        internal IntPtr TextureParameteriptr;
        internal IntPtr TextureParameteriEXTptr;
        internal IntPtr TextureParameterivptr;
        internal IntPtr TextureParameterivEXTptr;
        internal IntPtr TextureRangeAPPLEptr;
        internal IntPtr TextureRenderbufferEXTptr;
        internal IntPtr TextureStorage1Dptr;
        internal IntPtr TextureStorage1DEXTptr;
        internal IntPtr TextureStorage2Dptr;
        internal IntPtr TextureStorage2DEXTptr;
        internal IntPtr TextureStorage2DMultisampleptr;
        internal IntPtr TextureStorage2DMultisampleEXTptr;
        internal IntPtr TextureStorage3Dptr;
        internal IntPtr TextureStorage3DEXTptr;
        internal IntPtr TextureStorage3DMultisampleptr;
        internal IntPtr TextureStorage3DMultisampleEXTptr;
        internal IntPtr TextureStorageMem1DEXTptr;
        internal IntPtr TextureStorageMem2DEXTptr;
        internal IntPtr TextureStorageMem2DMultisampleEXTptr;
        internal IntPtr TextureStorageMem3DEXTptr;
        internal IntPtr TextureStorageMem3DMultisampleEXTptr;
        internal IntPtr TextureStorageSparseAMDptr;
        internal IntPtr TextureSubImage1Dptr;
        internal IntPtr TextureSubImage1DEXTptr;
        internal IntPtr TextureSubImage2Dptr;
        internal IntPtr TextureSubImage2DEXTptr;
        internal IntPtr TextureSubImage3Dptr;
        internal IntPtr TextureSubImage3DEXTptr;
        internal IntPtr TextureViewptr;
        internal IntPtr TrackMatrixNVptr;
        internal IntPtr TransformFeedbackAttribsNVptr;
        internal IntPtr TransformFeedbackBufferBaseptr;
        internal IntPtr TransformFeedbackBufferRangeptr;
        internal IntPtr TransformFeedbackStreamAttribsNVptr;
        internal IntPtr TransformFeedbackVaryingsptr;
        internal IntPtr TransformFeedbackVaryingsEXTptr;
        internal IntPtr TransformFeedbackVaryingsNVptr;
        internal IntPtr TransformPathNVptr;
        internal IntPtr TranslatexOESptr;
        internal IntPtr Uniform1dptr;
        internal IntPtr Uniform1dvptr;
        internal IntPtr Uniform1fptr;
        internal IntPtr Uniform1fARBptr;
        internal IntPtr Uniform1fvptr;
        internal IntPtr Uniform1fvARBptr;
        internal IntPtr Uniform1iptr;
        internal IntPtr Uniform1i64ARBptr;
        internal IntPtr Uniform1i64NVptr;
        internal IntPtr Uniform1i64vARBptr;
        internal IntPtr Uniform1i64vNVptr;
        internal IntPtr Uniform1iARBptr;
        internal IntPtr Uniform1ivptr;
        internal IntPtr Uniform1ivARBptr;
        internal IntPtr Uniform1uiptr;
        internal IntPtr Uniform1ui64ARBptr;
        internal IntPtr Uniform1ui64NVptr;
        internal IntPtr Uniform1ui64vARBptr;
        internal IntPtr Uniform1ui64vNVptr;
        internal IntPtr Uniform1uiEXTptr;
        internal IntPtr Uniform1uivptr;
        internal IntPtr Uniform1uivEXTptr;
        internal IntPtr Uniform2dptr;
        internal IntPtr Uniform2dvptr;
        internal IntPtr Uniform2fptr;
        internal IntPtr Uniform2fARBptr;
        internal IntPtr Uniform2fvptr;
        internal IntPtr Uniform2fvARBptr;
        internal IntPtr Uniform2iptr;
        internal IntPtr Uniform2i64ARBptr;
        internal IntPtr Uniform2i64NVptr;
        internal IntPtr Uniform2i64vARBptr;
        internal IntPtr Uniform2i64vNVptr;
        internal IntPtr Uniform2iARBptr;
        internal IntPtr Uniform2ivptr;
        internal IntPtr Uniform2ivARBptr;
        internal IntPtr Uniform2uiptr;
        internal IntPtr Uniform2ui64ARBptr;
        internal IntPtr Uniform2ui64NVptr;
        internal IntPtr Uniform2ui64vARBptr;
        internal IntPtr Uniform2ui64vNVptr;
        internal IntPtr Uniform2uiEXTptr;
        internal IntPtr Uniform2uivptr;
        internal IntPtr Uniform2uivEXTptr;
        internal IntPtr Uniform3dptr;
        internal IntPtr Uniform3dvptr;
        internal IntPtr Uniform3fptr;
        internal IntPtr Uniform3fARBptr;
        internal IntPtr Uniform3fvptr;
        internal IntPtr Uniform3fvARBptr;
        internal IntPtr Uniform3iptr;
        internal IntPtr Uniform3i64ARBptr;
        internal IntPtr Uniform3i64NVptr;
        internal IntPtr Uniform3i64vARBptr;
        internal IntPtr Uniform3i64vNVptr;
        internal IntPtr Uniform3iARBptr;
        internal IntPtr Uniform3ivptr;
        internal IntPtr Uniform3ivARBptr;
        internal IntPtr Uniform3uiptr;
        internal IntPtr Uniform3ui64ARBptr;
        internal IntPtr Uniform3ui64NVptr;
        internal IntPtr Uniform3ui64vARBptr;
        internal IntPtr Uniform3ui64vNVptr;
        internal IntPtr Uniform3uiEXTptr;
        internal IntPtr Uniform3uivptr;
        internal IntPtr Uniform3uivEXTptr;
        internal IntPtr Uniform4dptr;
        internal IntPtr Uniform4dvptr;
        internal IntPtr Uniform4fptr;
        internal IntPtr Uniform4fARBptr;
        internal IntPtr Uniform4fvptr;
        internal IntPtr Uniform4fvARBptr;
        internal IntPtr Uniform4iptr;
        internal IntPtr Uniform4i64ARBptr;
        internal IntPtr Uniform4i64NVptr;
        internal IntPtr Uniform4i64vARBptr;
        internal IntPtr Uniform4i64vNVptr;
        internal IntPtr Uniform4iARBptr;
        internal IntPtr Uniform4ivptr;
        internal IntPtr Uniform4ivARBptr;
        internal IntPtr Uniform4uiptr;
        internal IntPtr Uniform4ui64ARBptr;
        internal IntPtr Uniform4ui64NVptr;
        internal IntPtr Uniform4ui64vARBptr;
        internal IntPtr Uniform4ui64vNVptr;
        internal IntPtr Uniform4uiEXTptr;
        internal IntPtr Uniform4uivptr;
        internal IntPtr Uniform4uivEXTptr;
        internal IntPtr UniformBlockBindingptr;
        internal IntPtr UniformBufferEXTptr;
        internal IntPtr UniformHandleui64ARBptr;
        internal IntPtr UniformHandleui64NVptr;
        internal IntPtr UniformHandleui64vARBptr;
        internal IntPtr UniformHandleui64vNVptr;
        internal IntPtr UniformMatrix2dvptr;
        internal IntPtr UniformMatrix2fvptr;
        internal IntPtr UniformMatrix2fvARBptr;
        internal IntPtr UniformMatrix2x3dvptr;
        internal IntPtr UniformMatrix2x3fvptr;
        internal IntPtr UniformMatrix2x4dvptr;
        internal IntPtr UniformMatrix2x4fvptr;
        internal IntPtr UniformMatrix3dvptr;
        internal IntPtr UniformMatrix3fvptr;
        internal IntPtr UniformMatrix3fvARBptr;
        internal IntPtr UniformMatrix3x2dvptr;
        internal IntPtr UniformMatrix3x2fvptr;
        internal IntPtr UniformMatrix3x4dvptr;
        internal IntPtr UniformMatrix3x4fvptr;
        internal IntPtr UniformMatrix4dvptr;
        internal IntPtr UniformMatrix4fvptr;
        internal IntPtr UniformMatrix4fvARBptr;
        internal IntPtr UniformMatrix4x2dvptr;
        internal IntPtr UniformMatrix4x2fvptr;
        internal IntPtr UniformMatrix4x3dvptr;
        internal IntPtr UniformMatrix4x3fvptr;
        internal IntPtr UniformSubroutinesuivptr;
        internal IntPtr Uniformui64NVptr;
        internal IntPtr Uniformui64vNVptr;
        internal IntPtr UnlockArraysEXTptr;
        internal IntPtr UnmapBufferptr;
        internal IntPtr UnmapBufferARBptr;
        internal IntPtr UnmapNamedBufferptr;
        internal IntPtr UnmapNamedBufferEXTptr;
        internal IntPtr UnmapObjectBufferATIptr;
        internal IntPtr UnmapTexture2DINTELptr;
        internal IntPtr UpdateObjectBufferATIptr;
        internal IntPtr UploadGpuMaskNVXptr;
        internal IntPtr UseProgramptr;
        internal IntPtr UseProgramObjectARBptr;
        internal IntPtr UseProgramStagesptr;
        internal IntPtr UseShaderProgramEXTptr;
        internal IntPtr VDPAUFiniNVptr;
        internal IntPtr VDPAUGetSurfaceivNVptr;
        internal IntPtr VDPAUInitNVptr;
        internal IntPtr VDPAUIsSurfaceNVptr;
        internal IntPtr VDPAUMapSurfacesNVptr;
        internal IntPtr VDPAURegisterOutputSurfaceNVptr;
        internal IntPtr VDPAURegisterVideoSurfaceNVptr;
        internal IntPtr VDPAURegisterVideoSurfaceWithPictureStructureNVptr;
        internal IntPtr VDPAUSurfaceAccessNVptr;
        internal IntPtr VDPAUUnmapSurfacesNVptr;
        internal IntPtr VDPAUUnregisterSurfaceNVptr;
        internal IntPtr ValidateProgramptr;
        internal IntPtr ValidateProgramARBptr;
        internal IntPtr ValidateProgramPipelineptr;
        internal IntPtr VariantArrayObjectATIptr;
        internal IntPtr VariantPointerEXTptr;
        internal IntPtr VariantbvEXTptr;
        internal IntPtr VariantdvEXTptr;
        internal IntPtr VariantfvEXTptr;
        internal IntPtr VariantivEXTptr;
        internal IntPtr VariantsvEXTptr;
        internal IntPtr VariantubvEXTptr;
        internal IntPtr VariantuivEXTptr;
        internal IntPtr VariantusvEXTptr;
        internal IntPtr Vertex2bOESptr;
        internal IntPtr Vertex2bvOESptr;
        internal IntPtr Vertex2hNVptr;
        internal IntPtr Vertex2hvNVptr;
        internal IntPtr Vertex2xOESptr;
        internal IntPtr Vertex2xvOESptr;
        internal IntPtr Vertex3bOESptr;
        internal IntPtr Vertex3bvOESptr;
        internal IntPtr Vertex3hNVptr;
        internal IntPtr Vertex3hvNVptr;
        internal IntPtr Vertex3xOESptr;
        internal IntPtr Vertex3xvOESptr;
        internal IntPtr Vertex4bOESptr;
        internal IntPtr Vertex4bvOESptr;
        internal IntPtr Vertex4hNVptr;
        internal IntPtr Vertex4hvNVptr;
        internal IntPtr Vertex4xOESptr;
        internal IntPtr Vertex4xvOESptr;
        internal IntPtr VertexArrayAttribBindingptr;
        internal IntPtr VertexArrayAttribFormatptr;
        internal IntPtr VertexArrayAttribIFormatptr;
        internal IntPtr VertexArrayAttribLFormatptr;
        internal IntPtr VertexArrayBindVertexBufferEXTptr;
        internal IntPtr VertexArrayBindingDivisorptr;
        internal IntPtr VertexArrayColorOffsetEXTptr;
        internal IntPtr VertexArrayEdgeFlagOffsetEXTptr;
        internal IntPtr VertexArrayElementBufferptr;
        internal IntPtr VertexArrayFogCoordOffsetEXTptr;
        internal IntPtr VertexArrayIndexOffsetEXTptr;
        internal IntPtr VertexArrayMultiTexCoordOffsetEXTptr;
        internal IntPtr VertexArrayNormalOffsetEXTptr;
        internal IntPtr VertexArrayParameteriAPPLEptr;
        internal IntPtr VertexArrayRangeAPPLEptr;
        internal IntPtr VertexArrayRangeNVptr;
        internal IntPtr VertexArraySecondaryColorOffsetEXTptr;
        internal IntPtr VertexArrayTexCoordOffsetEXTptr;
        internal IntPtr VertexArrayVertexAttribBindingEXTptr;
        internal IntPtr VertexArrayVertexAttribDivisorEXTptr;
        internal IntPtr VertexArrayVertexAttribFormatEXTptr;
        internal IntPtr VertexArrayVertexAttribIFormatEXTptr;
        internal IntPtr VertexArrayVertexAttribIOffsetEXTptr;
        internal IntPtr VertexArrayVertexAttribLFormatEXTptr;
        internal IntPtr VertexArrayVertexAttribLOffsetEXTptr;
        internal IntPtr VertexArrayVertexAttribOffsetEXTptr;
        internal IntPtr VertexArrayVertexBindingDivisorEXTptr;
        internal IntPtr VertexArrayVertexBufferptr;
        internal IntPtr VertexArrayVertexBuffersptr;
        internal IntPtr VertexArrayVertexOffsetEXTptr;
        internal IntPtr VertexAttrib1dptr;
        internal IntPtr VertexAttrib1dARBptr;
        internal IntPtr VertexAttrib1dNVptr;
        internal IntPtr VertexAttrib1dvptr;
        internal IntPtr VertexAttrib1dvARBptr;
        internal IntPtr VertexAttrib1dvNVptr;
        internal IntPtr VertexAttrib1fptr;
        internal IntPtr VertexAttrib1fARBptr;
        internal IntPtr VertexAttrib1fNVptr;
        internal IntPtr VertexAttrib1fvptr;
        internal IntPtr VertexAttrib1fvARBptr;
        internal IntPtr VertexAttrib1fvNVptr;
        internal IntPtr VertexAttrib1hNVptr;
        internal IntPtr VertexAttrib1hvNVptr;
        internal IntPtr VertexAttrib1sptr;
        internal IntPtr VertexAttrib1sARBptr;
        internal IntPtr VertexAttrib1sNVptr;
        internal IntPtr VertexAttrib1svptr;
        internal IntPtr VertexAttrib1svARBptr;
        internal IntPtr VertexAttrib1svNVptr;
        internal IntPtr VertexAttrib2dptr;
        internal IntPtr VertexAttrib2dARBptr;
        internal IntPtr VertexAttrib2dNVptr;
        internal IntPtr VertexAttrib2dvptr;
        internal IntPtr VertexAttrib2dvARBptr;
        internal IntPtr VertexAttrib2dvNVptr;
        internal IntPtr VertexAttrib2fptr;
        internal IntPtr VertexAttrib2fARBptr;
        internal IntPtr VertexAttrib2fNVptr;
        internal IntPtr VertexAttrib2fvptr;
        internal IntPtr VertexAttrib2fvARBptr;
        internal IntPtr VertexAttrib2fvNVptr;
        internal IntPtr VertexAttrib2hNVptr;
        internal IntPtr VertexAttrib2hvNVptr;
        internal IntPtr VertexAttrib2sptr;
        internal IntPtr VertexAttrib2sARBptr;
        internal IntPtr VertexAttrib2sNVptr;
        internal IntPtr VertexAttrib2svptr;
        internal IntPtr VertexAttrib2svARBptr;
        internal IntPtr VertexAttrib2svNVptr;
        internal IntPtr VertexAttrib3dptr;
        internal IntPtr VertexAttrib3dARBptr;
        internal IntPtr VertexAttrib3dNVptr;
        internal IntPtr VertexAttrib3dvptr;
        internal IntPtr VertexAttrib3dvARBptr;
        internal IntPtr VertexAttrib3dvNVptr;
        internal IntPtr VertexAttrib3fptr;
        internal IntPtr VertexAttrib3fARBptr;
        internal IntPtr VertexAttrib3fNVptr;
        internal IntPtr VertexAttrib3fvptr;
        internal IntPtr VertexAttrib3fvARBptr;
        internal IntPtr VertexAttrib3fvNVptr;
        internal IntPtr VertexAttrib3hNVptr;
        internal IntPtr VertexAttrib3hvNVptr;
        internal IntPtr VertexAttrib3sptr;
        internal IntPtr VertexAttrib3sARBptr;
        internal IntPtr VertexAttrib3sNVptr;
        internal IntPtr VertexAttrib3svptr;
        internal IntPtr VertexAttrib3svARBptr;
        internal IntPtr VertexAttrib3svNVptr;
        internal IntPtr VertexAttrib4Nbvptr;
        internal IntPtr VertexAttrib4NbvARBptr;
        internal IntPtr VertexAttrib4Nivptr;
        internal IntPtr VertexAttrib4NivARBptr;
        internal IntPtr VertexAttrib4Nsvptr;
        internal IntPtr VertexAttrib4NsvARBptr;
        internal IntPtr VertexAttrib4Nubptr;
        internal IntPtr VertexAttrib4NubARBptr;
        internal IntPtr VertexAttrib4Nubvptr;
        internal IntPtr VertexAttrib4NubvARBptr;
        internal IntPtr VertexAttrib4Nuivptr;
        internal IntPtr VertexAttrib4NuivARBptr;
        internal IntPtr VertexAttrib4Nusvptr;
        internal IntPtr VertexAttrib4NusvARBptr;
        internal IntPtr VertexAttrib4bvptr;
        internal IntPtr VertexAttrib4bvARBptr;
        internal IntPtr VertexAttrib4dptr;
        internal IntPtr VertexAttrib4dARBptr;
        internal IntPtr VertexAttrib4dNVptr;
        internal IntPtr VertexAttrib4dvptr;
        internal IntPtr VertexAttrib4dvARBptr;
        internal IntPtr VertexAttrib4dvNVptr;
        internal IntPtr VertexAttrib4fptr;
        internal IntPtr VertexAttrib4fARBptr;
        internal IntPtr VertexAttrib4fNVptr;
        internal IntPtr VertexAttrib4fvptr;
        internal IntPtr VertexAttrib4fvARBptr;
        internal IntPtr VertexAttrib4fvNVptr;
        internal IntPtr VertexAttrib4hNVptr;
        internal IntPtr VertexAttrib4hvNVptr;
        internal IntPtr VertexAttrib4ivptr;
        internal IntPtr VertexAttrib4ivARBptr;
        internal IntPtr VertexAttrib4sptr;
        internal IntPtr VertexAttrib4sARBptr;
        internal IntPtr VertexAttrib4sNVptr;
        internal IntPtr VertexAttrib4svptr;
        internal IntPtr VertexAttrib4svARBptr;
        internal IntPtr VertexAttrib4svNVptr;
        internal IntPtr VertexAttrib4ubNVptr;
        internal IntPtr VertexAttrib4ubvptr;
        internal IntPtr VertexAttrib4ubvARBptr;
        internal IntPtr VertexAttrib4ubvNVptr;
        internal IntPtr VertexAttrib4uivptr;
        internal IntPtr VertexAttrib4uivARBptr;
        internal IntPtr VertexAttrib4usvptr;
        internal IntPtr VertexAttrib4usvARBptr;
        internal IntPtr VertexAttribArrayObjectATIptr;
        internal IntPtr VertexAttribBindingptr;
        internal IntPtr VertexAttribDivisorptr;
        internal IntPtr VertexAttribDivisorARBptr;
        internal IntPtr VertexAttribFormatptr;
        internal IntPtr VertexAttribFormatNVptr;
        internal IntPtr VertexAttribI1iptr;
        internal IntPtr VertexAttribI1iEXTptr;
        internal IntPtr VertexAttribI1ivptr;
        internal IntPtr VertexAttribI1ivEXTptr;
        internal IntPtr VertexAttribI1uiptr;
        internal IntPtr VertexAttribI1uiEXTptr;
        internal IntPtr VertexAttribI1uivptr;
        internal IntPtr VertexAttribI1uivEXTptr;
        internal IntPtr VertexAttribI2iptr;
        internal IntPtr VertexAttribI2iEXTptr;
        internal IntPtr VertexAttribI2ivptr;
        internal IntPtr VertexAttribI2ivEXTptr;
        internal IntPtr VertexAttribI2uiptr;
        internal IntPtr VertexAttribI2uiEXTptr;
        internal IntPtr VertexAttribI2uivptr;
        internal IntPtr VertexAttribI2uivEXTptr;
        internal IntPtr VertexAttribI3iptr;
        internal IntPtr VertexAttribI3iEXTptr;
        internal IntPtr VertexAttribI3ivptr;
        internal IntPtr VertexAttribI3ivEXTptr;
        internal IntPtr VertexAttribI3uiptr;
        internal IntPtr VertexAttribI3uiEXTptr;
        internal IntPtr VertexAttribI3uivptr;
        internal IntPtr VertexAttribI3uivEXTptr;
        internal IntPtr VertexAttribI4bvptr;
        internal IntPtr VertexAttribI4bvEXTptr;
        internal IntPtr VertexAttribI4iptr;
        internal IntPtr VertexAttribI4iEXTptr;
        internal IntPtr VertexAttribI4ivptr;
        internal IntPtr VertexAttribI4ivEXTptr;
        internal IntPtr VertexAttribI4svptr;
        internal IntPtr VertexAttribI4svEXTptr;
        internal IntPtr VertexAttribI4ubvptr;
        internal IntPtr VertexAttribI4ubvEXTptr;
        internal IntPtr VertexAttribI4uiptr;
        internal IntPtr VertexAttribI4uiEXTptr;
        internal IntPtr VertexAttribI4uivptr;
        internal IntPtr VertexAttribI4uivEXTptr;
        internal IntPtr VertexAttribI4usvptr;
        internal IntPtr VertexAttribI4usvEXTptr;
        internal IntPtr VertexAttribIFormatptr;
        internal IntPtr VertexAttribIFormatNVptr;
        internal IntPtr VertexAttribIPointerptr;
        internal IntPtr VertexAttribIPointerEXTptr;
        internal IntPtr VertexAttribL1dptr;
        internal IntPtr VertexAttribL1dEXTptr;
        internal IntPtr VertexAttribL1dvptr;
        internal IntPtr VertexAttribL1dvEXTptr;
        internal IntPtr VertexAttribL1i64NVptr;
        internal IntPtr VertexAttribL1i64vNVptr;
        internal IntPtr VertexAttribL1ui64ARBptr;
        internal IntPtr VertexAttribL1ui64NVptr;
        internal IntPtr VertexAttribL1ui64vARBptr;
        internal IntPtr VertexAttribL1ui64vNVptr;
        internal IntPtr VertexAttribL2dptr;
        internal IntPtr VertexAttribL2dEXTptr;
        internal IntPtr VertexAttribL2dvptr;
        internal IntPtr VertexAttribL2dvEXTptr;
        internal IntPtr VertexAttribL2i64NVptr;
        internal IntPtr VertexAttribL2i64vNVptr;
        internal IntPtr VertexAttribL2ui64NVptr;
        internal IntPtr VertexAttribL2ui64vNVptr;
        internal IntPtr VertexAttribL3dptr;
        internal IntPtr VertexAttribL3dEXTptr;
        internal IntPtr VertexAttribL3dvptr;
        internal IntPtr VertexAttribL3dvEXTptr;
        internal IntPtr VertexAttribL3i64NVptr;
        internal IntPtr VertexAttribL3i64vNVptr;
        internal IntPtr VertexAttribL3ui64NVptr;
        internal IntPtr VertexAttribL3ui64vNVptr;
        internal IntPtr VertexAttribL4dptr;
        internal IntPtr VertexAttribL4dEXTptr;
        internal IntPtr VertexAttribL4dvptr;
        internal IntPtr VertexAttribL4dvEXTptr;
        internal IntPtr VertexAttribL4i64NVptr;
        internal IntPtr VertexAttribL4i64vNVptr;
        internal IntPtr VertexAttribL4ui64NVptr;
        internal IntPtr VertexAttribL4ui64vNVptr;
        internal IntPtr VertexAttribLFormatptr;
        internal IntPtr VertexAttribLFormatNVptr;
        internal IntPtr VertexAttribLPointerptr;
        internal IntPtr VertexAttribLPointerEXTptr;
        internal IntPtr VertexAttribP1uiptr;
        internal IntPtr VertexAttribP1uivptr;
        internal IntPtr VertexAttribP2uiptr;
        internal IntPtr VertexAttribP2uivptr;
        internal IntPtr VertexAttribP3uiptr;
        internal IntPtr VertexAttribP3uivptr;
        internal IntPtr VertexAttribP4uiptr;
        internal IntPtr VertexAttribP4uivptr;
        internal IntPtr VertexAttribParameteriAMDptr;
        internal IntPtr VertexAttribPointerptr;
        internal IntPtr VertexAttribPointerARBptr;
        internal IntPtr VertexAttribPointerNVptr;
        internal IntPtr VertexAttribs1dvNVptr;
        internal IntPtr VertexAttribs1fvNVptr;
        internal IntPtr VertexAttribs1hvNVptr;
        internal IntPtr VertexAttribs1svNVptr;
        internal IntPtr VertexAttribs2dvNVptr;
        internal IntPtr VertexAttribs2fvNVptr;
        internal IntPtr VertexAttribs2hvNVptr;
        internal IntPtr VertexAttribs2svNVptr;
        internal IntPtr VertexAttribs3dvNVptr;
        internal IntPtr VertexAttribs3fvNVptr;
        internal IntPtr VertexAttribs3hvNVptr;
        internal IntPtr VertexAttribs3svNVptr;
        internal IntPtr VertexAttribs4dvNVptr;
        internal IntPtr VertexAttribs4fvNVptr;
        internal IntPtr VertexAttribs4hvNVptr;
        internal IntPtr VertexAttribs4svNVptr;
        internal IntPtr VertexAttribs4ubvNVptr;
        internal IntPtr VertexBindingDivisorptr;
        internal IntPtr VertexBlendARBptr;
        internal IntPtr VertexBlendEnvfATIptr;
        internal IntPtr VertexBlendEnviATIptr;
        internal IntPtr VertexFormatNVptr;
        internal IntPtr VertexPointerEXTptr;
        internal IntPtr VertexPointerListIBMptr;
        internal IntPtr VertexPointervINTELptr;
        internal IntPtr VertexStream1dATIptr;
        internal IntPtr VertexStream1dvATIptr;
        internal IntPtr VertexStream1fATIptr;
        internal IntPtr VertexStream1fvATIptr;
        internal IntPtr VertexStream1iATIptr;
        internal IntPtr VertexStream1ivATIptr;
        internal IntPtr VertexStream1sATIptr;
        internal IntPtr VertexStream1svATIptr;
        internal IntPtr VertexStream2dATIptr;
        internal IntPtr VertexStream2dvATIptr;
        internal IntPtr VertexStream2fATIptr;
        internal IntPtr VertexStream2fvATIptr;
        internal IntPtr VertexStream2iATIptr;
        internal IntPtr VertexStream2ivATIptr;
        internal IntPtr VertexStream2sATIptr;
        internal IntPtr VertexStream2svATIptr;
        internal IntPtr VertexStream3dATIptr;
        internal IntPtr VertexStream3dvATIptr;
        internal IntPtr VertexStream3fATIptr;
        internal IntPtr VertexStream3fvATIptr;
        internal IntPtr VertexStream3iATIptr;
        internal IntPtr VertexStream3ivATIptr;
        internal IntPtr VertexStream3sATIptr;
        internal IntPtr VertexStream3svATIptr;
        internal IntPtr VertexStream4dATIptr;
        internal IntPtr VertexStream4dvATIptr;
        internal IntPtr VertexStream4fATIptr;
        internal IntPtr VertexStream4fvATIptr;
        internal IntPtr VertexStream4iATIptr;
        internal IntPtr VertexStream4ivATIptr;
        internal IntPtr VertexStream4sATIptr;
        internal IntPtr VertexStream4svATIptr;
        internal IntPtr VertexWeightPointerEXTptr;
        internal IntPtr VertexWeightfEXTptr;
        internal IntPtr VertexWeightfvEXTptr;
        internal IntPtr VertexWeighthNVptr;
        internal IntPtr VertexWeighthvNVptr;
        internal IntPtr VideoCaptureNVptr;
        internal IntPtr VideoCaptureStreamParameterdvNVptr;
        internal IntPtr VideoCaptureStreamParameterfvNVptr;
        internal IntPtr VideoCaptureStreamParameterivNVptr;
        internal IntPtr Viewportptr;
        internal IntPtr ViewportArrayvptr;
        internal IntPtr ViewportIndexedfptr;
        internal IntPtr ViewportIndexedfvptr;
        internal IntPtr ViewportPositionWScaleNVptr;
        internal IntPtr ViewportSwizzleNVptr;
        internal IntPtr WaitSemaphoreEXTptr;
        internal IntPtr WaitSemaphoreui64NVXptr;
        internal IntPtr WaitSyncptr;
        internal IntPtr WaitVkSemaphoreNVptr;
        internal IntPtr WeightPathsNVptr;
        internal IntPtr WeightPointerARBptr;
        internal IntPtr WeightbvARBptr;
        internal IntPtr WeightdvARBptr;
        internal IntPtr WeightfvARBptr;
        internal IntPtr WeightivARBptr;
        internal IntPtr WeightsvARBptr;
        internal IntPtr WeightubvARBptr;
        internal IntPtr WeightuivARBptr;
        internal IntPtr WeightusvARBptr;
        internal IntPtr WindowPos2dARBptr;
        internal IntPtr WindowPos2dMESAptr;
        internal IntPtr WindowPos2dvARBptr;
        internal IntPtr WindowPos2dvMESAptr;
        internal IntPtr WindowPos2fARBptr;
        internal IntPtr WindowPos2fMESAptr;
        internal IntPtr WindowPos2fvARBptr;
        internal IntPtr WindowPos2fvMESAptr;
        internal IntPtr WindowPos2iARBptr;
        internal IntPtr WindowPos2iMESAptr;
        internal IntPtr WindowPos2ivARBptr;
        internal IntPtr WindowPos2ivMESAptr;
        internal IntPtr WindowPos2sARBptr;
        internal IntPtr WindowPos2sMESAptr;
        internal IntPtr WindowPos2svARBptr;
        internal IntPtr WindowPos2svMESAptr;
        internal IntPtr WindowPos3dARBptr;
        internal IntPtr WindowPos3dMESAptr;
        internal IntPtr WindowPos3dvARBptr;
        internal IntPtr WindowPos3dvMESAptr;
        internal IntPtr WindowPos3fARBptr;
        internal IntPtr WindowPos3fMESAptr;
        internal IntPtr WindowPos3fvARBptr;
        internal IntPtr WindowPos3fvMESAptr;
        internal IntPtr WindowPos3iARBptr;
        internal IntPtr WindowPos3iMESAptr;
        internal IntPtr WindowPos3ivARBptr;
        internal IntPtr WindowPos3ivMESAptr;
        internal IntPtr WindowPos3sARBptr;
        internal IntPtr WindowPos3sMESAptr;
        internal IntPtr WindowPos3svARBptr;
        internal IntPtr WindowPos3svMESAptr;
        internal IntPtr WindowPos4dMESAptr;
        internal IntPtr WindowPos4dvMESAptr;
        internal IntPtr WindowPos4fMESAptr;
        internal IntPtr WindowPos4fvMESAptr;
        internal IntPtr WindowPos4iMESAptr;
        internal IntPtr WindowPos4ivMESAptr;
        internal IntPtr WindowPos4sMESAptr;
        internal IntPtr WindowPos4svMESAptr;
        internal IntPtr WindowRectanglesEXTptr;
        internal IntPtr WriteMaskEXTptr;


        #endregion

        internal IntPtr glad_loader_handler;

    }


    [StructLayout(LayoutKind.Sequential)]
    internal struct GLFWapi
    {
        internal IntPtr Init;
        internal IntPtr Terminate;
        internal IntPtr InitHint;
        internal IntPtr GetVersion;
        internal IntPtr GetVersionString;
        internal IntPtr GetError;
        internal IntPtr SetErrorCallback;
        internal IntPtr GetMonitors;
        internal IntPtr GetPrimaryMonitor;
        internal IntPtr GetMonitorPos;
        internal IntPtr GetMonitorWorkarea;
        internal IntPtr GetMonitorPhysicalSize;
        internal IntPtr GetMonitorContentScale;
        internal IntPtr GetMonitorName;
        internal IntPtr SetMonitorUserPointer;
        internal IntPtr GetMonitorUserPointer;
        internal IntPtr SetMonitorCallback;
        internal IntPtr GetVideoModes;
        internal IntPtr GetVideoMode;
        internal IntPtr SetGamma;
        internal IntPtr GetGammaRamp;
        internal IntPtr SetGammaRamp;
        internal IntPtr DefaultWindowHints;
        internal IntPtr WindowHint;
        internal IntPtr WindowHintString;
        internal IntPtr CreateWindow;
        internal IntPtr DestroyWindow;
        internal IntPtr WindowShouldClose;
        internal IntPtr SetWindowShouldClose;
        internal IntPtr SetWindowTitle;
        internal IntPtr SetWindowIcon;
        internal IntPtr GetWindowPos;
        internal IntPtr SetWindowPos;
        internal IntPtr GetWindowSize;
        internal IntPtr SetWindowSizeLimits;
        internal IntPtr SetWindowAspectRatio;
        internal IntPtr SetWindowSize;
        internal IntPtr GetFramebufferSize;
        internal IntPtr GetWindowFrameSize;
        internal IntPtr GetWindowContentScale;
        internal IntPtr GetWindowOpacity;
        internal IntPtr SetWindowOpacity;
        internal IntPtr IconifyWindow;
        internal IntPtr RestoreWindow;
        internal IntPtr MaximizeWindow;
        internal IntPtr ShowWindow;
        internal IntPtr HideWindow;
        internal IntPtr FocusWindow;
        internal IntPtr RequestWindowAttention;
        internal IntPtr GetWindowMonitor;
        internal IntPtr SetWindowMonitor;
        internal IntPtr GetWindowAttrib;
        internal IntPtr SetWindowAttrib;
        internal IntPtr SetWindowUserPointer;
        internal IntPtr GetWindowUserPointer;
        internal IntPtr SetWindowPosCallback;
        internal IntPtr SetWindowSizeCallback;
        internal IntPtr SetWindowCloseCallback;
        internal IntPtr SetWindowRefreshCallback;
        internal IntPtr SetWindowFocusCallback;
        internal IntPtr SetWindowIconifyCallback;
        internal IntPtr SetWindowMaximizeCallback;
        internal IntPtr SetFramebufferSizeCallback;
        internal IntPtr SetWindowContentScaleCallback;
        internal IntPtr PollEvents;
        internal IntPtr WaitEvents;
        internal IntPtr WaitEventsTimeout;
        internal IntPtr PostEmptyEvent;
        internal IntPtr GetInputMode;
        internal IntPtr SetInputMode;
        internal IntPtr RawMouseMotionSupported;
        internal IntPtr GetKeyName;
        internal IntPtr GetKeyScancode;
        internal IntPtr GetKey;
        internal IntPtr GetMouseButton;
        internal IntPtr GetCursorPos;
        internal IntPtr SetCursorPos;
        internal IntPtr CreateCursor;
        internal IntPtr CreateStandardCursor;
        internal IntPtr DestroyCursor;
        internal IntPtr SetCursor;
        internal IntPtr SetKeyCallback;
        internal IntPtr SetCharCallback;
        internal IntPtr SetCharModsCallback;
        internal IntPtr SetMouseButtonCallback;
        internal IntPtr SetCursorPosCallback;
        internal IntPtr SetCursorEnterCallback;
        internal IntPtr SetScrollCallback;
        internal IntPtr SetDropCallback;
        internal IntPtr JoystickPresent;
        internal IntPtr GetJoystickAxes;
        internal IntPtr GetJoystickButtons;
        internal IntPtr GetJoystickHats;
        internal IntPtr GetJoystickName;
        internal IntPtr GetJoystickGUID;
        internal IntPtr SetJoystickUserPointer;
        internal IntPtr GetJoystickUserPointer;
        internal IntPtr JoystickIsGamepad;
        internal IntPtr SetJoystickCallback;
        internal IntPtr UpdateGamepadMappings;
        internal IntPtr GetGamepadName;
        internal IntPtr GetGamepadState;
        internal IntPtr SetClipboardString;
        internal IntPtr GetClipboardString;
        internal IntPtr GetTime;
        internal IntPtr SetTime;
        internal IntPtr GetTimerValue;
        internal IntPtr GetTimerFrequency;
        internal IntPtr MakeContextCurrent;
        internal IntPtr GetCurrentContext;
        internal IntPtr SwapBuffers;
        internal IntPtr SwapInterval;
        internal IntPtr ExtensionSupported;
        internal IntPtr GetProcAddress;
        internal IntPtr VulkanSupported;
        internal IntPtr GetRequiredInstanceExtensions;
        //internal IntPtr GetInstanceProcAddress;
        //internal IntPtr GetPhysicalDevicePresentationSupport;
        //internal IntPtr CreateWindowSurface;

    }


}