c - 找不到glXCreateContextAttribsARB(在OpenGL 4.2驱动程序，GLX 1.4上)

奇怪的是，尽管我拥有GLX 1.4，但似乎我的存储库中没有glXCreateContextAttribsARB。

我想知道对此是否有合理的解释？这不是一个常见的问题。

glxinfo

name of display: :0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
    GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
    GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
    GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
    GLX_ARB_create_context_robustness, GLX_ARB_multisample,
    GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
    GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
    GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
    GLX_SGI_swap_control, GLX_EXT_swap_control, GLX_ARB_create_context,
    GLX_ARB_create_context_profile, GLX_NV_float_buffer,
    GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
    GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
    GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
    GLX_NV_video_capture, GLX_EXT_create_context_es2_profile,
    GLX_ARB_create_context_robustness
GLX version: 1.4
GLX extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
    GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
    GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
    GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
    GLX_ARB_create_context_robustness, GLX_ARB_multisample,
    GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB,
    GLX_ARB_get_proc_address
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GTX 550 Ti/PCI/SSE2
OpenGL version string: 4.2.0 NVIDIA 290.10
OpenGL shading language version string: 4.20 NVIDIA via Cg compiler
OpenGL extensions:
    GL_ARB_base_instance, GL_ARB_blend_func_extended,
    GL_ARB_color_buffer_float, GL_ARB_compatibility,
    GL_ARB_compressed_texture_pixel_storage, GL_ARB_conservative_depth,
    GL_ARB_copy_buffer, GL_ARB_depth_buffer_float, GL_ARB_depth_clamp,
    GL_ARB_depth_texture, GL_ARB_draw_buffers, GL_ARB_draw_buffers_blend,
    GL_ARB_draw_indirect, GL_ARB_draw_elements_base_vertex,
    GL_ARB_draw_instanced, GL_ARB_ES2_compatibility,
    GL_ARB_explicit_attrib_location, GL_ARB_fragment_coord_conventions,
    GL_ARB_fragment_program, GL_ARB_fragment_program_shadow,
    GL_ARB_fragment_shader, GL_ARB_framebuffer_object,
    GL_ARB_framebuffer_sRGB, GL_ARB_geometry_shader4,
    GL_ARB_get_program_binary, GL_ARB_gpu_shader5, GL_ARB_gpu_shader_fp64,
    GL_ARB_half_float_pixel, GL_ARB_half_float_vertex, GL_ARB_imaging,
    GL_ARB_instanced_arrays, GL_ARB_internalformat_query,
    GL_ARB_map_buffer_alignment, GL_ARB_map_buffer_range, GL_ARB_multisample,
    GL_ARB_multitexture, GL_ARB_occlusion_query, GL_ARB_occlusion_query2,
    GL_ARB_pixel_buffer_object, GL_ARB_point_parameters, GL_ARB_point_sprite,
    GL_ARB_provoking_vertex, GL_ARB_robustness, GL_ARB_sample_shading,
    GL_ARB_sampler_objects, GL_ARB_seamless_cube_map,
    GL_ARB_separate_shader_objects, GL_ARB_shader_atomic_counters,
    GL_ARB_shader_bit_encoding, GL_ARB_shader_image_load_store,
    GL_ARB_shader_objects, GL_ARB_shader_precision, GL_ARB_shader_subroutine,
    GL_ARB_shading_language_100, GL_ARB_shading_language_420pack,
    GL_ARB_shading_language_include, GL_ARB_shading_language_packing,
    GL_ARB_shadow, GL_ARB_sync, GL_ARB_tessellation_shader,
    GL_ARB_texture_border_clamp, GL_ARB_texture_buffer_object,
    GL_ARB_texture_buffer_object_rgb32, GL_ARB_texture_compression,
    GL_ARB_texture_compression_bptc, GL_ARB_texture_compression_rgtc,
    GL_ARB_texture_cube_map, GL_ARB_texture_cube_map_array,
    GL_ARB_texture_env_add, GL_ARB_texture_env_combine,
    GL_ARB_texture_env_crossbar, GL_ARB_texture_env_dot3,
    GL_ARB_texture_float, GL_ARB_texture_gather,
    GL_ARB_texture_mirrored_repeat, GL_ARB_texture_multisample,
    GL_ARB_texture_non_power_of_two, GL_ARB_texture_query_lod,
    GL_ARB_texture_rectangle, GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui,
    GL_ARB_texture_storage, GL_ARB_texture_swizzle, GL_ARB_timer_query,
    GL_ARB_transform_feedback2, GL_ARB_transform_feedback3,
    GL_ARB_transform_feedback_instanced, GL_ARB_transpose_matrix,
    GL_ARB_uniform_buffer_object, GL_ARB_vertex_array_bgra,
    GL_ARB_vertex_array_object, GL_ARB_vertex_attrib_64bit,
    GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader,
    GL_ARB_vertex_type_2_10_10_10_rev, GL_ARB_viewport_array,
    GL_ARB_window_pos, GL_ATI_draw_buffers, GL_ATI_texture_float,
    GL_ATI_texture_mirror_once, GL_S3_s3tc, GL_EXT_texture_env_add,
    GL_EXT_abgr, GL_EXT_bgra, GL_EXT_bindable_uniform, GL_EXT_blend_color,
    GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate,
    GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_compiled_vertex_array,
    GL_EXT_Cg_shader, GL_EXT_depth_bounds_test, GL_EXT_direct_state_access,
    GL_EXT_draw_buffers2, GL_EXT_draw_instanced, GL_EXT_draw_range_elements,
    GL_EXT_fog_coord, GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample,
    GL_EXTX_framebuffer_mixed_formats, GL_EXT_framebuffer_object,
    GL_EXT_framebuffer_sRGB, GL_EXT_geometry_shader4,
    GL_EXT_gpu_program_parameters, GL_EXT_gpu_shader4,
    GL_EXT_multi_draw_arrays, GL_EXT_packed_depth_stencil,
    GL_EXT_packed_float, GL_EXT_packed_pixels, GL_EXT_pixel_buffer_object,
    GL_EXT_point_parameters, GL_EXT_provoking_vertex, GL_EXT_rescale_normal,
    GL_EXT_secondary_color, GL_EXT_separate_shader_objects,
    GL_EXT_separate_specular_color, GL_EXT_shader_image_load_store,
    GL_EXT_shadow_funcs, GL_EXT_stencil_two_side, GL_EXT_stencil_wrap,
    GL_EXT_texture3D, GL_EXT_texture_array, GL_EXT_texture_buffer_object,
    GL_EXT_texture_compression_dxt1, GL_EXT_texture_compression_latc,
    GL_EXT_texture_compression_rgtc, GL_EXT_texture_compression_s3tc,
    GL_EXT_texture_cube_map, GL_EXT_texture_edge_clamp,
    GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3,
    GL_EXT_texture_filter_anisotropic, GL_EXT_texture_format_BGRA8888,
    GL_EXT_texture_integer, GL_EXT_texture_lod, GL_EXT_texture_lod_bias,
    GL_EXT_texture_mirror_clamp, GL_EXT_texture_object,
    GL_EXT_texture_shared_exponent, GL_EXT_texture_sRGB,
    GL_EXT_texture_sRGB_decode, GL_EXT_texture_storage,
    GL_EXT_texture_swizzle, GL_EXT_texture_type_2_10_10_10_REV,
    GL_EXT_timer_query, GL_EXT_transform_feedback2, GL_EXT_vertex_array,
    GL_EXT_vertex_array_bgra, GL_EXT_vertex_attrib_64bit,
    GL_EXT_x11_sync_object, GL_EXT_import_sync_object, GL_IBM_rasterpos_clip,
    GL_IBM_texture_mirrored_repeat, GL_KTX_buffer_region, GL_NV_alpha_test,
    GL_NV_blend_minmax, GL_NV_blend_square, GL_NV_complex_primitives,
    GL_NV_conditional_render, GL_NV_copy_depth_to_color, GL_NV_copy_image,
    GL_NV_depth_buffer_float, GL_NV_depth_clamp, GL_NV_explicit_multisample,
    GL_NV_fbo_color_attachments, GL_NV_fence, GL_NV_float_buffer,
    GL_NV_fog_distance, GL_NV_fragdepth, GL_NV_fragment_program,
    GL_NV_fragment_program_option, GL_NV_fragment_program2,
    GL_NV_framebuffer_multisample_coverage, GL_NV_geometry_shader4,
    GL_NV_gpu_program4, GL_NV_gpu_program4_1, GL_NV_gpu_program5,
    GL_NV_gpu_program_fp64, GL_NV_gpu_shader5, GL_NV_half_float,
    GL_NV_light_max_exponent, GL_NV_multisample_coverage,
    GL_NV_multisample_filter_hint, GL_NV_occlusion_query,
    GL_NV_packed_depth_stencil, GL_NV_parameter_buffer_object,
    GL_NV_parameter_buffer_object2, GL_NV_path_rendering,
    GL_NV_pixel_data_range, GL_NV_point_sprite, GL_NV_primitive_restart,
    GL_NV_register_combiners, GL_NV_register_combiners2,
    GL_NV_shader_atomic_counters, GL_NV_shader_buffer_load,
    GL_NV_texgen_reflection, GL_NV_texture_barrier,
    GL_NV_texture_compression_vtc, GL_NV_texture_env_combine4,
    GL_NV_texture_expand_normal, GL_NV_texture_lod_clamp,
    GL_NV_texture_multisample, GL_NV_texture_rectangle, GL_NV_texture_shader,
    GL_NV_texture_shader2, GL_NV_texture_shader3, GL_NV_transform_feedback,
    GL_NV_transform_feedback2, GL_NV_vdpau_interop, GL_NV_vertex_array_range,
    GL_NV_vertex_array_range2, GL_NV_vertex_attrib_integer_64bit,
    GL_NV_vertex_buffer_unified_memory, GL_NV_vertex_program,
    GL_NV_vertex_program1_1, GL_NV_vertex_program2,
    GL_NV_vertex_program2_option, GL_NV_vertex_program3,
    GL_NVX_conditional_render, GL_NVX_gpu_memory_info, GL_OES_depth24,
    GL_OES_depth32, GL_OES_depth_texture, GL_OES_element_index_uint,
    GL_OES_fbo_render_mipmap, GL_OES_get_program_binary, GL_OES_mapbuffer,
    GL_OES_packed_depth_stencil, GL_OES_rgb8_rgba8,
    GL_OES_standard_derivatives, GL_OES_texture_3D, GL_OES_texture_float,
    GL_OES_texture_float_linear, GL_OES_texture_half_float,
    GL_OES_texture_half_float_linear, GL_OES_texture_npot,
    GL_OES_vertex_array_object, GL_OES_vertex_half_float,
    GL_SGIS_generate_mipmap, GL_SGIS_texture_lod, GL_SGIX_depth_texture,
    GL_SGIX_shadow, GL_SUN_slice_accum

显然，缓冲区绑定(bind)，ARB和所有其他不错的东西都受支持，但是为什么不支持glXCreateContextAttribsARB呢？

甚至是陌生人，我只有glXCreateContextAttribsARBPRoc，我很想知道它是否可以替代？

例如，它将编译:

`glXCreateContextAttribsARBProc glxccarb = 0;`

最佳答案

当您说“没有”时，我想您的意思是“如果我尝试直接调用此名称的函数，则我的应用程序将不会链接”。

那是设计使然。从libGL直接导出的功能列表没有增加。如果确实如此，则链接到(仅由a导出的函数)新libGL的应用甚至无法针对旧版本的libGL启动。那很糟。

像所有其他扩展功能一样，应使用glXCreateContextAttribsARB查找glXGetProcAddressARB。更好的是，使用GLEW，这样您就不必再担心这种详细程度了。