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 Clamping controls (GL_ARB_color_buffer_float)         BRANCH ~mareko/mesa floating2
  19 Float textures, renderbuffers (GL_ARB_texture_float)  BRANCH ~mareko/mesa floating2
  20 GL_EXT_packed_float                                   not started
  21 GL_EXT_texture_shared_exponent                        not started
  22 Float depth buffers (GL_ARB_depth_buffer_float)       not started
  23 Framebuffer objects (GL_EXT_framebuffer_object)       DONE
  24 Half-float                                            DONE
  25 Multisample blit                                      DONE
  26 Non-normalized Integer texture/framebuffer formats    ~50% done
  27 1D/2D Texture arrays                                  core Mesa, swrast done
  28 Packed depth/stencil formats                          DONE
  29 Per-buffer blend and masks (GL_EXT_draw_buffers2)     DONE
  30 GL_EXT_texture_compression_rgtc                       DONE (swrast, gallium r600)
  31 Red and red/green texture formats                     DONE (swrast, i965, gallium)
  32 Transform feedback (GL_EXT_transform_feedback)        ~50% done
  33    glBindFragDataLocation, glGetFragDataLocation,
  34    glBindBufferRange, glBindBufferBase commands
  35 Vertex array objects (GL_APPLE_vertex_array_object)   DONE
  36 sRGB framebuffer format (GL_EXT_framebuffer_sRGB)     core GL done (i965, gallium), GLX todo
  37 glClearBuffer commands                                DONE
  38 glGetStringi command                                  DONE
  39 glTexParameterI, glGetTexParameterI commands          DONE
  40 glVertexAttribI commands                              DONE (but converts int
  41                                                             values to floats)
  42
  43
  44 GL 3.1:
  45
  46 GLSL 1.30 and 1.40                                    not started
  47 Instanced drawing (GL_ARB_draw_instanced)             DONE (gallium, swrast)
  48 Buffer copying (GL_ARB_copy_buffer)                   DONE
  49 Primitive restart (GL_NV_primitive_restart)           DONE (gallium)
  50 16 vertex texture image units                         not started
  51 Texture buffer objs (GL_ARB_texture_buffer_object)    not started
  52 Rectangular textures (GL_ARB_texture_rectangle)       DONE
  53 Uniform buffer objs (GL_ARB_uniform_buffer_object)    not started
  54 Signed normalized textures (GL_EXT_texture_snorm)     ~50% done
  55
  56
  57 GL 3.2:
  58
  59 Core/compatibility profiles                           not started
  60 GLSL 1.50                                             not started
  61 Geometry shaders (GL_ARB_geometry_shader4)            partially done (Zack)
  62 BGRA vertex order (GL_ARB_vertex_array_bgra)          DONE
  63 Base vertex offset(GL_ARB_draw_elements_base_vertex)  DONE
  64 Frag shader coord (GL_ARB_fragment_coord_conventions) DONE (swrast, gallium)
  65 Provoking vertex (GL_ARB_provoking_vertex)            DONE
  66 Seamless cubemaps (GL_ARB_seamless_cube_map)          DONE, mostly?
  67 Multisample textures (GL_ARB_texture_multisample)     not started
  68 Frag depth clamp (GL_ARB_depth_clamp)                 DONE
  69 Fence objects (GL_ARB_sync)                           DONE
  70
  71
  72 GL 3.3:
  73
  74 GLSL 3.30                                             not started
  75 GL_ARB_blend_func_extended                            not started
  76 GL_ARB_explicit_attrib_location                       DONE (swrast, i915, i965)
  77 GL_ARB_occlusion_query2                               DONE (swrast, gallium)
  78 GL_ARB_sampler_objects                                not started
  79 GL_ARB_texture_rgb10_a2ui                             not started
  80 GL_ARB_texture_swizzle                                DONE (same as EXT version)
  81 GL_ARB_timer_query                                    DONE (only Xlib sw driver)
  82 GL_ARB_instanced_arrays                               DONE (gallium)
  83 GL_ARB_vertex_type_2_10_10_10_rev                     not started
  84
  85
  86 GL 4.0:
  87
  88 GLSL 4.0                                             not started
  89 GL_ARB_texture_query_lod                             not started
  90 GL_ARB_draw_buffers_blend                            DONE (gallium softpipe)
  91 GL_ARB_draw_indirect                                 not started
  92 GL_ARB_gpu_shader_fp64                               not started
  93 GL_ARB_sample_shading                                not started
  94 GL_ARB_shader_subroutine                             not started
  95 GL_ARB_tessellation_shader                           not started
  96 GL_ARB_texture_buffer_object_rgb32                   not started
  97 GL_ARB_texture_cube_map_array                        not started
  98 GL_ARB_texture_gather                                not started
  99 GL_ARB_transform_feedback2                           not started
 100 GL_ARB_transform_feedback3                           not started
 101
 102
 103 GL 4.1:
 104
 105 GLSL 4.1                                             not started
 106 GL_ARB_ES2_compatibility                             not started
 107 GL_ARB_get_program_binary                            not started
 108 GL_ARB_separate_shader_objects                       some infrastructure done
 109 GL_ARB_shader_precision                              not started
 110 GL_ARB_vertex_attrib_64bit                           not started
 111 GL_ARB_viewport_array                                not started
 112
 113
 114
 115
 116 More info about these features and the work involved can be found at
 117 http://dri.freedesktop.org/wiki/MissingFunctionality