docs/GL3.txt

   1
   2 Status of OpenGL 3.x features in Mesa
   3
   4
   5 Note: when an item is marked as "DONE" it means all the core Mesa
   6 infrastructure is complete but it may be the case that few (if any) drivers
   7 implement the features.
   8
   9
  10 Feature                                               Status
  11 ----------------------------------------------------- ------------------------
  12
  13 GL 3.0:
  14
  15 GLSL changes (GL_EXT_gpu_shader4, etc)                not started
  16 Conditional rendering (GL_NV_conditional_render)      DONE (swrast & softpipe)
  17 Map buffer subranges (GL_ARB_map_buffer_range)        DONE
  18 Float textures, renderbuffers                         some infrastructure done
  19  (incl. GL_EXT_packed_float, GL_EXT_shared_exponent)
  20 Framebuffer objects (GL_EXT_framebuffer_object)       DONE
  21 Half-float                                            some infrastructure done
  22 Multisample blit                                      DONE
  23 Non-normalized Integer texture/framebuffer formats    ~50% done
  24 1D/2D Texture arrays                                  core Mesa, swrast done
  25 Packed depth/stencil formats                          DONE
  26 Per-buffer blend and masks (GL_EXT_draw_buffers2)     DONE
  27 GL_EXT_texture_compression_rgtc                       not started
  28 Red and red/green texture formats                     DONE (swrast, i965, gallium)
  29 Transform feedback (GL_EXT_transform_feedback)        ~50% done
  30    glBindFragDataLocation, glGetFragDataLocation,
  31    glBindBufferRange, glBindBufferBase commands
  32 Vertex array objects (GL_APPLE_vertex_array_object)   DONE
  33 sRGB framebuffer format (GL_EXT_framebuffer_sRGB)     not started
  34 glClearBuffer commands                                DONE
  35 glGetStringi command                                  DONE
  36 glTexParameterI, glGetTexParameterI commands          DONE
  37 glVertexAttribI commands                              DONE (but converts int
  38                                                             values to floats)
  39
  40
  41 GL 3.1:
  42
  43 GLSL 1.30 and 1.40                                    not started
  44 Instanced drawing (GL_ARB_draw_instanced)             DONE (gallium, swrast)
  45 Buffer copying (GL_ARB_copy_buffer)                   DONE
  46 Primitive restart (GL_NV_primitive_restart)           DONE (gallium)
  47 16 vertex texture image units                         not started
  48 Texture buffer objs (GL_ARB_texture_buffer_object)    not started
  49 Rectangular textures (GL_ARB_texture_rectangle)       DONE
  50 Uniform buffer objs (GL_ARB_uniform_buffer_object)    not started
  51 Signed normalized texture formats                     ~50% done
  52
  53
  54 GL 3.2:
  55
  56 Core/compatibility profiles                           not started
  57 GLSL 1.50                                             not started
  58 Geometry shaders (GL_ARB_geometry_shader4)            partially done (Zack)
  59 BGRA vertex order (GL_ARB_vertex_array_bgra)          DONE
  60 Base vertex offset(GL_ARB_draw_elements_base_vertex)  DONE
  61 Frag shader coord (GL_ARB_fragment_coord_conventions) DONE (swrast, gallium)
  62 Provoking vertex (GL_ARB_provoking_vertex)            DONE
  63 Seamless cubemaps (GL_ARB_seamless_cube_map)          DONE, mostly?
  64 Multisample textures (GL_ARB_texture_multisample)     not started
  65 Frag depth clamp (GL_ARB_depth_clamp)                 DONE
  66 Fence objects (GL_ARB_sync)                           DONE
  67
  68
  69 GL 3.3:
  70
  71 GLSL 3.30                                             not started
  72 GL_ARB_blend_func_extended                            not started
  73 GL_ARB_explicit_attrib_location                       DONE (swrast, i915, i965)
  74 GL_ARB_occlusion_query2                               DONE (swrast, gallium)
  75 GL_ARB_sampler_objects                                not started
  76 GL_ARB_texture_rgb10_a2ui                             not started
  77 GL_ARB_texture_swizzle                                DONE (same as EXT version)
  78 GL_ARB_timer_query                                    DONE (only Xlib sw driver)
  79 GL_ARB_instanced_arrays                               DONE (gallium)
  80 GL_ARB_vertex_type_2_10_10_10_rev                     not started
  81
  82
  83 GL 4.0:
  84
  85 GLSL 4.0                                             not started
  86 GL_ARB_texture_query_lod                             not started
  87 GL_ARB_draw_buffers_blend                            DONE (gallium softpipe)
  88 GL_ARB_draw_indirect                                 not started
  89 GL_ARB_gpu_shader_fp64                               not started
  90 GL_ARB_sample_shading                                not started
  91 GL_ARB_shader_subroutine                             not started
  92 GL_ARB_tessellation_shader                           not started
  93 GL_ARB_texture_buffer_object_rgb32                   not started
  94 GL_ARB_texture_cube_map_array                        not started
  95 GL_ARB_texture_gather                                not started
  96 GL_ARB_transform_feedback2                           not started
  97 GL_ARB_transform_feedback3                           not started
  98
  99
 100 GL 4.1:
 101
 102 GLSL 4.1                                             not started
 103 GL_ARB_ES2_compatibility                             not started
 104 GL_ARB_get_program_binary                            not started
 105 GL_ARB_separate_shader_objects                       some infrastructure done
 106 GL_ARB_shader_precision                              not started
 107 GL_ARB_vertex_attrib_64bit                           not started
 108 GL_ARB_viewport_array                                not started
 109
 110
 111
 112
 113 More info about these features and the work involved can be found at
 114 http://dri.freedesktop.org/wiki/MissingFunctionality