GPU Debugging API Support

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Help > Using CodeXL > GPU Debugger > GPU Debugging API Support

CodeXL GPU debugging supports OpenCL up to and including version 2.0, OpenGL up to and including version 4.5 (including compatibility profiles) and a large variety of OpenCL and OpenGL extensions.

Kernel debugging is not supported for OpenCL 2.0 kernels.

The supported extensions include:

OpenCL Extensions

Extension name	Support level
cl_khr_3d_image_writes	Full
cl_khr_byte_addressable_store	Full
cl_khr_dx9_media_sharing	Full
cl_khr_d3d10_sharing	Full
cl_khr_d3d11_sharing	Full
cl_khr_fp64	Full
cl_khr_gl_sharing	Full
cl_khr_icd	Full
cl_khr_global_int32_base_atomics	Standard *
cl_khr_global_int32_extended_atomics	Standard *
cl_khr_local_int32_base_atomics	Standard *
cl_khr_local_int32_extended_atomics	Standard *
cl_ext_atomic_counters_32	Standard *
cl_ext_cl20_atomics	Standard *
cl_ext_cl20_svm	Standard *
cl_ext_device_fission	Standard
cl_amd_c11_atomics	Standard *
cl_amd_device_attribute_query	Standard
cl_amd_fp64	Full
cl_amd_media_ops	Standard
cl_amd_popcnt	Standard *
cl_amd_printf	Standard *
cl_amd_svm	Standard *
cl_amd_vec3	Standard
cl_nv_d3d9_sharing	Standard
cl_nv_d3d10_sharing	Standard
cl_nv_d3d11_sharing	Standard
* Using this extension in a kernel might prevent the kernel from being debuggable. If kernel debugging is attempted, a message notifying the user that the kernel uses unsupported features will be displayed.

OpenGL extensions

Extension name	Support level
GL_ARB_arrays_of_arrays	Standard
GL_ARB_base_instance	Full
GL_ARB_blend_func_extended	Standard
GL_ARB_clear_buffer_object	Standard
GL_ARB_color_buffer_float	Standard
GL_ARB_compatibility	Full
GL_ARB_compressed_texture_pixel_storage	Standard
GL_ARB_compute_shader	Full
GL_ARB_conservative_depth	Standard
GL_ARB_copy_buffer	Full
GL_ARB_copy_image	Standard
GL_ARB_debug_output	Full
GL_ARB_debug_output	Full
GL_ARB_depth_buffer_float	Standard
GL_ARB_depth_clamp	Full
GL_ARB_depth_clamp	Standard
GL_ARB_depth_texture	Standard
GL_ARB_draw_buffers	Standard
GL_ARB_draw_buffers_blend	Standard
GL_ARB_draw_elements_base_vertex	Full
GL_ARB_draw_elemnts_base_vertex	Full
GL_ARB_draw_indirect	Full
GL_ARB_draw_instanced	Full
GL_ARB_ES2_compatibility	Standard
GL_ARB_ES3_compatibility	Standard
GL_ARB_explicit_attrib_location	Standard
GL_ARB_explicit_uniform_location	Standard
GL_ARB_fragment_coord_conventions	Full
GL_ARB_fragment_coord_conventions	Standard
GL_ARB_fragment_layer_viewport	Standard
GL_ARB_fragment_program	Standard
GL_ARB_fragment_program_shadow	Standard
GL_ARB_fragment_shader	Full
GL_ARB_framebuffer_no_attachments	Standard
GL_ARB_framebuffer_object	Full
GL_ARB_framebuffer_sRGB	Full
GL_ARB_geometry_shader4	Full
GL_ARB_geometry_shader4	Full
GL_ARB_get_program_binary	Standard
GL_ARB_gpu_shader_fp64	Full
GL_ARB_gpu_shader5	Full
GL_ARB_half_float_pixel	Standard
GL_ARB_half_float_vertex	Standard
GL_ARB_instanced_arrays	Full
GL_ARB_instanced_arrays	Full
GL_ARB_internalformat_query	Standard
GL_ARB_internalformat_query2	Standard
GL_ARB_invalidate_subdata	Standard
GL_ARB_map_buffer_alignment	Standard
GL_ARB_map_buffer_range	Standard
GL_ARB_matrix_palette	Standard
GL_ARB_multi_draw_indirect	Full
GL_ARB_multisample	Standard
GL_ARB_multitexture	Full
GL_ARB_occlusion_query	Standard
GL_ARB_occlusion_query2	Standard
GL_ARB_pixel_buffer_object	Standard
GL_ARB_point_parameters	Full
GL_ARB_point_sprite	Standard
GL_ARB_program_interface_query	Standard
GL_ARB_provoking_vertex	Full
GL_ARB_provoking_vertex	Standard
GL_ARB_robust_buffer_access_behavior	Standard
GL_ARB_sample_shading	Standard
GL_ARB_sampler_objects	Standard
GL_ARB_seamless_cube_map	Full
GL_ARB_seamless_cube_map	Standard
GL_ARB_separate_shader_objects	Standard
GL_ARB_shader_atomic_counters	Full
GL_ARB_shader_bit_encoding	Standard
GL_ARB_shader_image_load_store	Standard
GL_ARB_shader_image_size	Standard
GL_ARB_shader_objects	Full
GL_ARB_shader_precision	Standard
GL_ARB_shader_storage_buffer_object	Standard
GL_ARB_shader_subroutine	Standard
GL_ARB_shading_language_100	Full
GL_ARB_shading_language_420pack	Standard
GL_ARB_shading_language_packing	Standard
GL_ARB_shadow	Full
GL_ARB_shadow_ambient	Standard
GL_ARB_stencil_texturing	Standard
GL_ARB_sync	Full
GL_ARB_sync	Full
GL_ARB_tessellation_shader	Full
GL_ARB_texture_border_clamp	Full
GL_ARB_texture_buffer_object	Full
GL_ARB_texture_buffer_object_rgb32	Standard
GL_ARB_texture_buffer_range	Standard
GL_ARB_texture_compression	Full
GL_ARB_texture_compression_rgtc	Standard
GL_ARB_texture_cube_map	Full
GL_ARB_texture_cube_map_array	Full
GL_ARB_texture_env_add	Full
GL_ARB_texture_env_combine	Full
GL_ARB_texture_env_crossbar	Full
GL_ARB_texture_env_dot3	Full
GL_ARB_texture_float	Standard
GL_ARB_texture_gather	Standard
GL_ARB_texture_mirrored_repeat	Full
GL_ARB_texture_multisample	Full
GL_ARB_texture_multisample	Standard
GL_ARB_texture_non_power_of_two	Full
GL_ARB_texture_query_levels	Standard
GL_ARB_texture_rectangle	Full
GL_ARB_texture_rg	Standard
GL_ARB_texture_rgb10_a2ui	Standard
GL_ARB_texture_storage	Standard
GL_ARB_texture_storage_multisample	Standard
GL_ARB_texture_swizzle	Standard
GL_ARB_texture_view	Standard
GL_ARB_timer_query	Standard
GL_ARB_transform_feedback_instanced	Standard
GL_ARB_transform_feedback2	Standard
GL_ARB_transform_feedback3	Standard
GL_ARB_transpose_matrix	Full
GL_ARB_uniform_buffer_object	Full
GL_ARB_vertex_array_bgra	Full
GL_ARB_vertex_array_bgra	Standard
GL_ARB_vertex_array_object	Full
GL_ARB_vertex_attrib_64bit	Standard
GL_ARB_vertex_attrib_binding	Standard
GL_ARB_vertex_blend	Full
GL_ARB_vertex_buffer_object	Standard
GL_ARB_vertex_program	Standard
GL_ARB_vertex_shader	Full
GL_ARB_vertex_type_2_10_10_10_rev	Standard
GL_ARB_viewport_array	Standard
GL_ARB_window_pos	Full
GL_EXT_bgra	Full
GL_EXT_bindable_uniform	Full
GL_EXT_blend_logic_op	Full
GL_EXT_blend_minmax	Full
GL_EXT_blend_subtract	Full
GL_EXT_compiled_vertex_array	Full
GL_EXT_direct_state_access	Full
GL_EXT_draw_instanced	Full
GL_EXT_framebuffer_blit	Full
GL_EXT_framebuffer_multisample	Full
GL_EXT_framebuffer_object	Full
GL_EXT_geometry_shader4	Full
GL_EXT_multi_draw_arrays	Full
GL_EXT_packed_pixels	Full
GL_EXT_stencil_two_side	Full
GL_EXT_texture	Full
GL_EXT_texture_array	Full
GL_EXT_texture_buffer_object	Full
GL_EXT_texture_integer	Full
GL_EXT_texture_rectangle	Full
GL_EXT_texture_shared_exponent	Full
GL_EXT_texture3D	Full
GL_EXT_vertex_shader	Standard
GL_AMD_debug_output	Full
GL_AMDX_debug_output	Full
GL_APPLE_aux_depth_stencil	Full
GL_APPLE_client_storage	Full
GL_APPLE_element_array	Full
GL_APPLE_fence	Standard
GL_APPLE_float_pixels	Full
GL_APPLE_flush_buffer_range	Standard
GL_APPLE_flush_render	Standard
GL_APPLE_object_purgeable	Standard
GL_APPLE_packed_pixels	Full
GL_APPLE_pixel_buffer	Standard
GL_APPLE_specular_vector	Full
GL_APPLE_texture_range	Standard
GL_APPLE_transform_hint	Full
GL_APPLE_vertex_array_object	Standard
GL_APPLE_vertex_array_range	Standard
GL_APPLE_vertex_program_evaluators	Full
GL_APPLE_ycbcr_422	Full
GL_ATI_draw_buffers	Standard
GL_ATI_fragment_shader	Standard
GL_ATI_text_fragment_shader	Standard
GL_GREMEDY_frame_terminator	Full
GL_GREMEDY_string_marker	Full
GL_HP_occlusion_test	Standard
GL_KHR_debug	Standard
GL_NV_fragment_program	Standard
GL_NV_fragment_program_option	Standard
GL_NV_fragment_program2	Standard
GL_NV_geometry_shader4	Full
GL_NV_occlusion_query	Standard
GL_NV_primitive_restart	Full
GL_NV_texgen_reflection	Full
GL_NV_texture_rectangle	Full
GL_NV_texture_shader	Standard
GL_NV_texture_shader3	Standard
GL_NV_vertex_program	Standard
GL_NV_vertex_program1_1	Standard
GL_NV_vertex_program2	Standard
GL_NV_vertex_program2_option	Standard
GL_NV_vertex_program3	Standard
GL_OES_draw_texture	Standard
GL_SGIS_generate_mipmap	Full
GL_SGIS_texture_border_clamp	Full
GL_SGIS_texture_edge_clamp	Full
GL_SGIS_texture_lod	Full
GL_SGIS_texture_select	Full
GL_SGIX_depth_texture	Full
GL_SGIX_interlace	Full
GL_SGIX_shadow	Full
GL_SGIX_shadow_ambient	Full
GLX_ARB_create_context	Full
GLX_ARB_create_context_profile	Full
GLX_ARB_fbconfig_float	Standard
GLX_ARB_framebuffer_sRGB	Full
GLX_ARB_get_proc_address	Full
GLX_ARB_multisample	Standard
GLX_SGI_video_sync	Standard
GLX_SGIX_fbconfig	Standard
WGL_AMD_gpu_association	Standard
WGL_ARB_buffer_region	Standard
WGL_ARB_create_context	Full
WGL_ARB_create_context_profile	Full
WGL_ARB_extensions_string	Full
WGL_ARB_framebuffer_sRGB	Full
WGL_ARB_make_current_read	Standard
WGL_ARB_multisample	Standard
WGL_ARB_pbuffer	Standard
WGL_ARB_pixel_format	Standard
WGL_ARB_pixel_format_float	Standard
WGL_ARB_render_texture	Standard
WGL_I3D_genlock	Standard
WGL_NV_gpu_affinity	Standard
WGL_NV_present_video	Standard
WGL_NV_swap_group	Standard
WGL_NV_video_out	Standard

Standard Extension Support Level

The Standard Extension Support Level enables one to log the calls and arguments of the extension functions, set breakpoints at the extension functions, and watch the values of the extension states variables.

Full Extension Support Level

In addition to supporting the Standard Extension Support Level features, the Full Extension Support Level enables one to view the extension-related data in the corresponding CodeXL views.

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