docs: added GL 3.x feature checklist to track what's done in Mesa
diff --git a/docs/GL3.txt b/docs/GL3.txt
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+
+Status of OpenGL 3.x features in Mesa
+
+
+Note: when an item is marked as "DONE" it means all the core Mesa
+infrastructure is complete but it may be the case that few (if any) drivers
+implement the features.
+
+
+Feature Status
+----------------------------------------------------- ------------------------
+
+GL 3.0:
+
+GLSL changes (GL_EXT_gpu_shader4, etc) not started
+Conditional rendering (GL_NV_conditional_render) not started
+Map buffer subranges (GL_APPLE_flush_buffer_range) not started
+Float textures, renderbuffers some infrastructure done
+Framebuffer objects (GL_EXT_framebuffer_object) DONE
+Half-float some infrastructure done
+Multisample blit DONE
+Non-normalized Integer texture/framebuffer formats not started
+1D/2D Texture arrays mostly done
+Packed depth/stencil formats DONE
+Per-buffer blend and masks (GL_EXT_draw_buffers2) DONE
+GL_EXT_texture_compression_rgtc not started
+Red and red/green texture formats Ian?
+Transform feedback (GL_EXT_transform_feedback) not started
+Vertex array objects (GL_APPLE_vertex_array_object) DONE
+sRGB framebuffer format (GL_EXT_framebuffer_sRGB) not started
+glClearBuffer commands DONE, except for dispatch
+glGetStringi command DONE, except for dispatch
+
+
+GL 3.1:
+
+GLSL 1.30 and 1.40 not started
+Instanced drawing (GL_ARB_draw_instanced) not started
+Buffer copying (GL_ARB_copy_buffer) DONE
+Primitive restart (GL_NV_primitive_restart) not started
+16 vertex texture image units not started
+Texture buffer objs (GL_ARB_textur_buffer_object) not started
+Rectangular textures (GL_ARB_texture_rectangle) DONE
+Uniform buffer objs (GL_ARB_uniform_buffer_object) not started
+Signed normalized texture formats not started
+
+
+GL 3.2:
+
+Core/compatibility profiles not started
+GLSL 1.50 not started
+Geometry shaders (GL_ARB_geometry_shader4) partially done (Zack)
+BGRA vertex order (GL_ARB_vertex_array_bgra) DONE
+Base vertex offset(GL_ARB_draw_elements_base_vertex) DONE
+Frag shader coord (GL_ARB_fragment_coord_conventions) not started
+Provoking vertex (GL_ARB_provoking_vertex) DONE
+Seamless cubemaps (GL_ARB_seamless_cube_map) DONE, mostly?
+Multisample textures (GL_ARB_texture_multisample) not started
+Frag depth clamp (GL_ARB_depth_clamp) DONE
+Fence objects (GL_ARB_sync) DONE
+
+