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 OpenGL Core and Compatibility context support
  11
  12 OpenGL 3.1 and later versions are only supported with the Core profile.
  13 There are no plans to support GL_ARB_compatibility. The last supported OpenGL
  14 version with all deprecated features is 3.0. Some of the later GL features
  15 are exposed in the 3.0 context as extensions.
  16
  17
  18 Feature                                               Status
  19 ----------------------------------------------------- ------------------------
  20
  21 GL 3.0, GLSL 1.30 --- all DONE: i965, nv50, nvc0, r600, radeonsi
  22
  23   glBindFragDataLocation, glGetFragDataLocation         DONE
  24   Conditional rendering (GL_NV_conditional_render)      DONE (r300, swrast)
  25   Map buffer subranges (GL_ARB_map_buffer_range)        DONE (r300, swrast)
  26   Clamping controls (GL_ARB_color_buffer_float)         DONE (r300)
  27   Float textures, renderbuffers (GL_ARB_texture_float)  DONE (r300)
  28   GL_EXT_packed_float                                   DONE ()
  29   GL_EXT_texture_shared_exponent                        DONE (swrast)
  30   Float depth buffers (GL_ARB_depth_buffer_float)       DONE ()
  31   Framebuffer objects (GL_ARB_framebuffer_object)       DONE (r300, swrast)
  32   GL_ARB_half_float_pixel                               DONE (all drivers)
  33   GL_ARB_half_float_vertex                              DONE (r300, swrast)
  34   GL_EXT_texture_integer                                DONE ()
  35   GL_EXT_texture_array                                  DONE ()
  36   Per-buffer blend and masks (GL_EXT_draw_buffers2)     DONE (swrast)
  37   GL_EXT_texture_compression_rgtc                       DONE (r300, swrast)
  38   GL_ARB_texture_rg                                     DONE (r300, swrast)
  39   Transform feedback (GL_EXT_transform_feedback)        DONE ()
  40   Vertex array objects (GL_ARB_vertex_array_object)     DONE (all drivers)
  41   sRGB framebuffer format (GL_EXT_framebuffer_sRGB)     DONE ()
  42   glClearBuffer commands                                DONE
  43   glGetStringi command                                  DONE
  44   glTexParameterI, glGetTexParameterI commands          DONE
  45   glVertexAttribI commands                              DONE
  46   Depth format cube textures                            DONE ()
  47   GLX_ARB_create_context (GLX 1.4 is required)          DONE
  48   Multisample anti-aliasing                             DONE (r300)
  49
  50
  51 GL 3.1, GLSL 1.40 --- all DONE: i965, nv50, nvc0, r600, radeonsi
  52
  53   Forward compatible context support/deprecations       DONE ()
  54   Instanced drawing (GL_ARB_draw_instanced)             DONE (swrast)
  55   Buffer copying (GL_ARB_copy_buffer)                   DONE (r300, swrast)
  56   Primitive restart (GL_NV_primitive_restart)           DONE (r300)
  57   16 vertex texture image units                         DONE ()
  58   Texture buffer objs (GL_ARB_texture_buffer_object)    DONE for OpenGL 3.1 contexts ()
  59   Rectangular textures (GL_ARB_texture_rectangle)       DONE (r300, swrast)
  60   Uniform buffer objs (GL_ARB_uniform_buffer_object)    DONE (swrast)
  61   Signed normalized textures (GL_EXT_texture_snorm)     DONE (r300)
  62
  63
  64 GL 3.2, GLSL 1.50 --- all DONE: i965, nv50, nvc0, r600, radeonsi
  65
  66   Core/compatibility profiles                           DONE
  67   Geometry shaders                                      DONE ()
  68   BGRA vertex order (GL_ARB_vertex_array_bgra)          DONE (r300, swrast)
  69   Base vertex offset(GL_ARB_draw_elements_base_vertex)  DONE (r300, swrast)
  70   Frag shader coord (GL_ARB_fragment_coord_conventions) DONE (r300, swrast)
  71   Provoking vertex (GL_ARB_provoking_vertex)            DONE (r300, swrast)
  72   Seamless cubemaps (GL_ARB_seamless_cube_map)          DONE ()
  73   Multisample textures (GL_ARB_texture_multisample)     DONE ()
  74   Frag depth clamp (GL_ARB_depth_clamp)                 DONE (swrast)
  75   Fence objects (GL_ARB_sync)                           DONE (r300, swrast)
  76   GLX_ARB_create_context_profile                        DONE
  77
  78
  79 GL 3.3, GLSL 3.30 --- all DONE: i965, nv50, nvc0, r600, radeonsi
  80
  81   GL_ARB_blend_func_extended                            DONE (softpipe)
  82   GL_ARB_explicit_attrib_location                       DONE (all drivers that support GLSL)
  83   GL_ARB_occlusion_query2                               DONE (r300, swrast)
  84   GL_ARB_sampler_objects                                DONE (all drivers)
  85   GL_ARB_shader_bit_encoding                            DONE ()
  86   GL_ARB_texture_rgb10_a2ui                             DONE ()
  87   GL_ARB_texture_swizzle                                DONE (r300, swrast)
  88   GL_ARB_timer_query                                    DONE ()
  89   GL_ARB_instanced_arrays                               DONE (r300)
  90   GL_ARB_vertex_type_2_10_10_10_rev                     DONE ()
  91
  92
  93 GL 4.0, GLSL 4.00:
  94
  95   GL_ARB_draw_buffers_blend                            DONE (i965, nv50, nvc0, r600, radeonsi, softpipe)
  96   GL_ARB_draw_indirect                                 DONE (i965, nvc0, radeonsi, softpipe, llvmpipe)
  97   GL_ARB_gpu_shader5                                   DONE (nvc0)
  98   - 'precise' qualifier                                DONE
  99   - Dynamically uniform sampler array indices          DONE ()
 100   - Dynamically uniform UBO array indices              DONE ()
 101   - Implicit signed -> unsigned conversions            DONE
 102   - Fused multiply-add                                 DONE (i965)
 103   - Packing/bitfield/conversion functions              DONE (i965, r600)
 104   - Enhanced textureGather                             DONE (i965, r600, radeonsi)
 105   - Geometry shader instancing                         DONE (i965)
 106   - Geometry shader multiple streams                   DONE (i965)
 107   - Enhanced per-sample shading                        DONE (i965, r600)
 108   - Interpolation functions                            DONE (i965)
 109   - New overload resolution rules                      DONE
 110   GL_ARB_gpu_shader_fp64                               started (Dave)
 111   GL_ARB_sample_shading                                DONE (i965, nv50, nvc0, radeonsi)
 112   GL_ARB_shader_subroutine                             not started
 113   GL_ARB_tessellation_shader                           started (Fabian)
 114   GL_ARB_texture_buffer_object_rgb32                   DONE (i965, nvc0, r600, radeonsi, softpipe)
 115   GL_ARB_texture_cube_map_array                        DONE (i965, nv50, nvc0, r600, radeonsi, softpipe)
 116   GL_ARB_texture_gather                                DONE (i965, nv50, nvc0, r600, radeonsi)
 117   GL_ARB_texture_query_lod                             DONE (i965, nv50, nvc0, r600, radeonsi)
 118   GL_ARB_transform_feedback2                           DONE (i965, nv50, nvc0, r600, radeonsi)
 119   GL_ARB_transform_feedback3                           DONE (i965, nv50, nvc0, r600, radeonsi)
 120
 121
 122 GL 4.1, GLSL 4.10:
 123
 124   GL_ARB_ES2_compatibility                             DONE (i965, nv50, nvc0, r300, r600, radeonsi)
 125   GL_ARB_get_program_binary                            DONE (0 binary formats)
 126   GL_ARB_separate_shader_objects                       DONE (all drivers)
 127   GL_ARB_shader_precision                              started (Micah)
 128   GL_ARB_vertex_attrib_64bit                           started (Dave)
 129   GL_ARB_viewport_array                                DONE (i965, nv50, nvc0, r600)
 130
 131
 132 GL 4.2, GLSL 4.20:
 133
 134   GL_ARB_texture_compression_bptc                      DONE (i965, nvc0, r600, radeonsi)
 135   GL_ARB_compressed_texture_pixel_storage              DONE (all drivers)
 136   GL_ARB_shader_atomic_counters                        DONE (i965)
 137   GL_ARB_texture_storage                               DONE (all drivers)
 138   GL_ARB_transform_feedback_instanced                  DONE (i965, nv50, nvc0, r600, radeonsi)
 139   GL_ARB_base_instance                                 DONE (i965, nv50, nvc0, r600, radeonsi)
 140   GL_ARB_shader_image_load_store                       in progress (curro)
 141   GL_ARB_conservative_depth                            DONE (all drivers that support GLSL 1.30)
 142   GL_ARB_shading_language_420pack                      DONE (all drivers that support GLSL 1.30)
 143   GL_ARB_internalformat_query                          DONE (i965, nv50, nvc0, r300, r600, radeonsi)
 144   GL_ARB_map_buffer_alignment                          DONE (all drivers)
 145
 146
 147 GL 4.3, GLSL 4.30:
 148
 149   GL_ARB_arrays_of_arrays                              started (Timothy)
 150   GL_ARB_ES3_compatibility                             DONE (all drivers that support GLSL 3.30)
 151   GL_ARB_clear_buffer_object                           DONE (all drivers)
 152   GL_ARB_compute_shader                                started (currently stalled)
 153   GL_ARB_copy_image                                    DONE (i965)
 154   GL_KHR_debug                                         DONE (all drivers)
 155   GL_ARB_explicit_uniform_location                     DONE (all drivers that support GLSL)
 156   GL_ARB_fragment_layer_viewport                       DONE (nv50, nvc0, r600)
 157   GL_ARB_framebuffer_no_attachments                    not started
 158   GL_ARB_internalformat_query2                         not started
 159   GL_ARB_invalidate_subdata                            DONE (all drivers)
 160   GL_ARB_multi_draw_indirect                           DONE (i965, nvc0, radeonsi, softpipe, llvmpipe)
 161   GL_ARB_program_interface_query                       not started
 162   GL_ARB_robust_buffer_access_behavior                 not started
 163   GL_ARB_shader_image_size                             not started
 164   GL_ARB_shader_storage_buffer_object                  not started
 165   GL_ARB_stencil_texturing                             DONE (i965/gen8+, nv50, nvc0, r600, radeonsi)
 166   GL_ARB_texture_buffer_range                          DONE (nv50, nvc0, i965, r600, radeonsi)
 167   GL_ARB_texture_query_levels                          DONE (all drivers that support GLSL 1.30)
 168   GL_ARB_texture_storage_multisample                   DONE (all drivers that support GL_ARB_texture_multisample)
 169   GL_ARB_texture_view                                  DONE (i965)
 170   GL_ARB_vertex_attrib_binding                         DONE (all drivers)
 171
 172
 173 GL 4.4, GLSL 4.40:
 174
 175   GL_MAX_VERTEX_ATTRIB_STRIDE                          not started
 176   GL_ARB_buffer_storage                                DONE (i965, nv30, nv50, nvc0, r300, r600, radeonsi)
 177   GL_ARB_clear_texture                                 DONE (i965)
 178   GL_ARB_enhanced_layouts                              not started
 179   GL_ARB_multi_bind                                    DONE (all drivers)
 180   GL_ARB_query_buffer_object                           not started
 181   GL_ARB_texture_mirror_clamp_to_edge                  DONE (i965, nv30, nv50, nvc0, r300, r600, radeonsi, swrast)
 182   GL_ARB_texture_stencil8                              not started
 183   GL_ARB_vertex_type_10f_11f_11f_rev                   DONE (i965, nv50, nvc0, r600, radeonsi)
 184
 185 GL 4.5, GLSL 4.50:
 186
 187   GL_ARB_ES3_1_compatibility                           not started
 188   GL_ARB_clip_control                                  not started
 189   GL_ARB_conditional_render_inverted                   not started
 190   GL_ARB_cull_distance                                 not started
 191   GL_ARB_derivative_control                            not started
 192   GL_ARB_direct_state_access                           not started
 193   GL_ARB_get_texture_sub_image                         started (Brian Paul)
 194   GL_ARB_shader_texture_image_samples                  not started
 195   GL_ARB_texture_barrier                               started (Ilia Mirkin)
 196   GL_KHR_context_flush_control                         not started
 197   GL_KHR_robust_buffer_access_behavior                 not started
 198   GL_KHR_robustness                                    90% done (the ARB variant)
 199
 200 These are the extensions cherry-picked to make GLES 3.1
 201 GLES3.1, GLSL ES 3.1
 202   GL_ARB_arrays_of_arrays                              started (Timothy)
 203   GL_ARB_compute_shader                                started (currently stalled)
 204   GL_ARB_explicit_uniform_location                     DONE (all drivers that support GLSL)
 205   GL_ARB_framebuffer_no_attachments                    not started
 206   GL_ARB_program_interface_query                       not started
 207   GL_ARB_shader_atomic_counters                        DONE (i965)
 208   GL_ARB_shader_image_load_store                       in progress (curro)
 209   GL_ARB_shader_storage_buffer_object                  not started
 210   GL_ARB_separate_shader_objects                       DONE (all drivers)
 211   GL_ARB_stencil_texturing                             DONE (i965/gen8+, nv50, nvc0, r600, radeonsi)
 212   GL_ARB_vertex_attrib_binding                         DONE (all drivers)
 213   GS5 Enhanced textureGather                           DONE (i965, nvc0, r600, radeonsi)
 214   GS5 Packing/bitfield/conversion functions            DONE (i965, nvc0, r600)
 215   GL_EXT_shader_integer_mix                            DONE (all drivers that support GLSL)
 216
 217
 218 More info about these features and the work involved can be found at
 219 http://dri.freedesktop.org/wiki/MissingFunctionality