This is the status of GL extension support in the virglrenderer code base. The initial codebase has GL3.3 feature complete. Some features don't require renderer support and are handled in the guest driver completely. Feature Status ----------------------------------------------------- ------------------------ GL 3.3, GLSL 3.30 --- renderer complete support. GL 4.0, GLSL 4.00 --- GL_ARB_draw_buffers_blend DONE GL_ARB_draw_indirect GL_ARB_gpu_shader5 in progress - 'precise' qualifier GUEST - Dynamically uniform sampler array indices - Dynamically uniform UBO array indices - Implicit signed -> unsigned conversions GUEST - Fused multiply-add - Packing/bitfield/conversion functions - Enhanced textureGather - Geometry shader instancing - Geometry shader multiple streams - Enhanced per-sample shading - Interpolation functions - New overload resolution rules GUEST GL_ARB_gpu_shader_fp64 GL_ARB_sample_shading GL_ARB_shader_subroutine GUEST GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 DONE GL_ARB_texture_cube_map_array DONE GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_transform_feedback2 DONE GL_ARB_transform_feedback3 DONE GL 4.1, GLSL 4.10 --- GL_ARB_ES2_compatibility GUEST GL_ARB_get_program_binary GUEST GL_ARB_separate_shader_objects GUEST GL_ARB_shader_precision GUEST GL_ARB_vertex_attrib_64bit GL_ARB_viewport_array DONE GL 4.2, GLSL 4.20: GL_ARB_texture_compression_bptc GL_ARB_compressed_texture_pixel_storage GL_ARB_shader_atomic_counters GL_ARB_texture_storage GL_ARB_transform_feedback_instanced GL_ARB_base_instance GL_ARB_shader_image_load_store GL_ARB_conservative_depth GL_ARB_shading_language_420pack GL_ARB_shading_language_packing GL_ARB_internalformat_query GL_ARB_map_buffer_alignment GL 4.3, GLSL 4.30: GL_ARB_arrays_of_arrays GL_ARB_ES3_compatibility GL_ARB_clear_buffer_object GL_ARB_compute_shader GL_ARB_copy_image GL_KHR_debug GL_ARB_explicit_uniform_location GL_ARB_fragment_layer_viewport GL_ARB_framebuffer_no_attachments GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_multi_draw_indirect GL_ARB_program_interface_query GL_ARB_robust_buffer_access_behavior GL_ARB_shader_image_size GL_ARB_shader_storage_buffer_object GL_ARB_stencil_texturing GL_ARB_texture_buffer_range GL_ARB_texture_query_levels GL_ARB_texture_storage_multisample GL_ARB_texture_view GL_ARB_vertex_attrib_binding GUEST GL 4.4, GLSL 4.40: GL_MAX_VERTEX_ATTRIB_STRIDE GL_ARB_buffer_storage GL_ARB_clear_texture GL_ARB_enhanced_layouts GL_ARB_multi_bind GL_ARB_query_buffer_object GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_stencil8 GL_ARB_vertex_type_10f_11f_11f_rev GL 4.5, GLSL 4.50: GL_ARB_ES3_1_compatibility GL_ARB_clip_control GL_ARB_conditional_render_inverted GL_ARB_cull_distance GL_ARB_derivative_control GL_ARB_direct_state_access GUEST GL_ARB_get_texture_sub_image GL_ARB_shader_texture_image_samples GL_ARB_texture_barrier GL_KHR_context_flush_control GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_EXT_shader_integer_mix