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