Texture Format Related Features GL Version Mesa Version i965 r600g Difficulty Notes
GL_ARB_texture_rg 3.0 7.10 7.10 7.10
GL_ARB_texture_float 3.0 7.11 7.11 7.11
GL_EXT_texture_array 3.0 7.8 8.0 8.0 Test implicit interactions with S3TC
GL_EXT_texture_integer (texture formats) 3.0 8.0 8.0 8.0
GL_EXT_packed_float 3.0 7.11 8.0 7.11
GL_EXT_texture_shared_exponent 3.0 7.11 8.0 7.11
GL_ARB_half_float_pixel 3.0 6.5 7.11 7.9
GL_EXT_texture_compression_rgtc 3.0 7.11 7.11 7.11
GL_EXT_texture_snorm 3.1 7.11 7.11 7.11
GL_ARB_texture_multisample 3.2 No Doable Doable Weeks?
GL_ARB_texture_rgb10_a2ui 3.3 8.0 9.0 8.0
Draw-call Related Features GL Version Mesa Version i965 r600g Difficulty Notes
GL_EXT_transform_feedback 3.0 8.0 8.0 8.0
GL_NV_conditional_render 3.0 7.8 7.11 7.11 Supported using waiting for OQ results so far on Intel.
GL_ARB_draw_instanced 3.1 7.11 9.0 7.11? Days
GL_NV_primitive_restart 3.1 7.10 9.0 8.0
GL_ARB_instanced_arrays 3.3 Yes 9.0 7.11 Weeks Even adding trivial software emulation would save the validation required for N-1 draw calls.
GL_ARB_occlusion_query2 3.3 7.11 7.11 7.11
GL_ARB_vertex_type_2_10_10_10_rev 3.3 8.0 Doable 8.0 Weeks
Render-target Related Features GL Version Mesa Version i965 r600g Difficulty Notes
GL_ARB_color_buffer_float 3.0 7.11 7.11 7.11
GL_ARB_depth_buffer_float 3.0 8.0 8.0 8.0
GL_EXT_texture_integer (render formats) 3.0 8.0 8.0 8.0
GL_EXT_draw_buffers2 3.0 7.8 7.9 7.10
GL_ARB_blend_func_extended 3.3 9.0 9.0 9.0
GL_EXT_framebuffer_sRGB 3.0 7.11 7.11 7.11
Shading Language Features GL Version Mesa Version i965 r600g Difficulty Notes
GLSL 1.30 3.0 8.0 8.0 8.0
GL_EXT_gpu_shader4 3.1 No Doable Doable Weeks
GLSL 1.40 3.1 9.0 9.0 9.0
GL_ARB_texture_buffer_object 3.1 9.0 9.0 9.0
GL_ARB_uniform_buffer_object 3.1 9.0 9.0 9.0 Months
16 vertex textures 3.0 Yes 8.0 7.11
GLSL 1.50 3.2 No Doable Doable Months Piles and piles of work.
GL_ARB_geometry_shader4 3.2 Partial? Doable Doable Months Plombo is working on it: https://github.com/Plombo/mesa/tree/geometry-shaders-rebase
GL_ARB_fragment_coord_conventions 3.2 7.8 7.10 7.8
GL_ARB_shader_bit_encoding 3.3 9.0 9.0 9.0
GL_ARB_explicit_attrib_location 3.3 7.10 7.10 7.10
Misc. Features GL Version Mesa Version i965 r600g Difficulty Notes
GL_ARB_sampler_objects 3.3 7.11 7.11 7.11
GL_ARB_texture_swizzle 3.3 7.9 (7.5) 7.9 (7.5) 7.9 Originally GL_EXT_texture_swizzle in Mesa 7.5.
GL_ARB_timer_query 3.3 7.9 9.0 9.0
GLX / EGL Features GL Version Mesa Version i965 r600g Difficulty Notes
GLX_ARB_create_context 3.0 8.0 8.0 8.0
GLX_ARB_create_context_profile 3.2 8.0 8.0 8.0 Weeks Mesa drivers don't actually support profiles yet, and Xserver support for this extension has not be implemented. There is still work to do here.