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 DONE
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 DONE
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 DONE
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