[Mesa-dev] [PATCH 2/3] mesa: enable ARB_texture_buffer_* extensions in the Compatibility profile

Mark Janes mark.a.janes at intel.com
Wed Nov 1 22:16:31 UTC 2017


Mark Janes <mark.a.janes at intel.com> writes:

> Marek Olšák <maraeo at gmail.com> writes:
>
>> Hi Mark,
>>
>> Can you try the attached patches instead?
>
> After talking with Ken and Dylan, I realize that I missed a one-line
> patch from your thread with my last test (Oct 25 patch to
> intel_extensions.c).  With that patch, there are no regressions in CI.
>
> I'm testing the attached patches as well.

With the most recent patches, I'm unable to run the GL CTS 4.6:

    MESA_GLSL_VERSION_OVERRIDE=460 MESA_GL_VERSION_OVERRIDE=4.6 ./glcts --deqp-runmode=xml-caselist
    Writing test log into TestResults.qpa
    dEQP Core git-d6144a989937b2829a9fc9813de994c4f514ebae (0xd6144a98) starting..
      target implementation = 'X11 EGL'
    Writing test cases from 'CTS-Configs' to file 'CTS-Configs-cases.xml'..
    Writing test cases from 'dEQP-EGL' to file 'dEQP-EGL-cases.xml'..
    Writing test cases from 'KHR-GLES2' to file 'KHR-GLES2-cases.xml'..
    Writing test cases from 'dEQP-GLES2' to file 'dEQP-GLES2-cases.xml'..
    Writing test cases from 'KHR-GLES3' to file 'KHR-GLES3-cases.xml'..
    Writing test cases from 'dEQP-GLES3' to file 'dEQP-GLES3-cases.xml'..
    Writing test cases from 'dEQP-GLES31' to file 'dEQP-GLES31-cases.xml'..
    Writing test cases from 'KHR-GLES31' to file 'KHR-GLES31-cases.xml'..
    Writing test cases from 'KHR-GLESEXT' to file 'KHR-GLESEXT-cases.xml'..
    Writing test cases from 'KHR-GLES32' to file 'KHR-GLES32-cases.xml'..
    Writing test cases from 'KHR-NoContext' to file 'KHR-NoContext-cases.xml'..
    Writing test cases from 'KHR-GL30' to file 'KHR-GL30-cases.xml'..
    Writing test cases from 'KHR-GL31' to file 'KHR-GL31-cases.xml'..
    FATAL ERROR: Failed to initialize dEQP: Got EGL_BAD_MATCH: eglCreateContext() at egluGLUtil.cpp:198

piglit, deqp, and gles-cts encountered no regressions.

>> Thanks,
>> Marek
>>
>> On Wed, Nov 1, 2017 at 9:49 PM, Mark Janes <mark.a.janes at intel.com> wrote:
>>> Dylan Baker <dylan at pnwbakers.com> writes:
>>>
>>>> I haven't run the CTS tests, but both the deqp and the piglit test pass on my
>>>> skl with Marek's patches applied.
>>>
>>> I must have tested with only the patch 2 applied.  Running with all
>>> three patches in the series, I see no piglit/deqp regressions.
>>>
>>> However, GLES CTS fails thousands of ES31-CTS.functional.texture tests,
>>> eg:
>>>
>>> ES31-CTS.functional.texture.format.buffer.rg8i_npot
>>> glGetIntegerv() failed: glGetError() returned GL_INVALID_ENUM at gluContextInfo.cpp:229
>>>
>>> -Mark
>>>
>>>>
>>>> Dylan
>>>>
>>>> Quoting Marek Olšák (2017-10-31 18:16:51)
>>>>> This is how I run piglit on i965:
>>>>> WAFFLE_GBM_DEVICE=/dev/dri/renderD128 PIGLIT_PLATFORM=gbm piglit/bin/glinfo|head
>>>>> GL_RENDERER = Mesa DRI Intel(R) Ivybridge Desktop
>>>>>
>>>>> Of course I have Radeon as my main GPU.
>>>>>
>>>>> Marek
>>>>>
>>>>> On Wed, Nov 1, 2017 at 12:52 AM, Mark Janes <mark.a.janes at intel.com> wrote:
>>>>> > No, please don't.  We can't have thousands of failures added to CI.
>>>>> >
>>>>> > Dylan, can you double check this for Marek?  I'm surprised that it
>>>>> > doesn't reproduce for him.
>>>>> >
>>>>> > -Mark
>>>>> >
>>>>> > Marek Olšák <maraeo at gmail.com> writes:
>>>>> >
>>>>> >> I can't reproduce the issue on my IVB. How about I just push this and
>>>>> >> you guys fix i965 when you have time?
>>>>> >>
>>>>> >> Marek
>>>>> >>
>>>>> >> On Thu, Oct 26, 2017 at 5:46 PM, Mark Janes <mark.a.janes at intel.com> wrote:
>>>>> >>> That fixed many issues, but:
>>>>> >>>
>>>>> >>> On deqp EGL tests, we get:
>>>>> >>>
>>>>> >>> dEQP-EGL.functional.create_context_ext.gl_42.rgba8888_no_depth_no_stencil
>>>>> >>> deqp-egl: main/api_exec.c:135: _mesa_initialize_exec_table: Assertion `ctx->Version > 0' failed.
>>>>> >>>
>>>>> >>> On ES31 CTS tests:
>>>>> >>> ES31-CTS.functional.texture.texture_buffer.render.as_vertex_array_as_vertex_texture_as_fragment_texture.range_size_513
>>>>> >>> glGetIntegerv() failed: glGetError() returned GL_INVALID_ENUM at
>>>>> >>> gluContextInfo.cpp:229
>>>>> >>>
>>>>> >>> on GL46 CTS (27 failures):
>>>>> >>> src/mesa/main/teximage.c:595: _mesa_tex_target_is_layered: Assertion
>>>>> >>> `!"Invalid texture target."' failed.
>>>>> >>>
>>>>> >>> Piglit fails 3.5k tests with the same `ctx->Version > 0' assertion as
>>>>> >>> deqp-egl.
>>>>> >>>
>>>>> >>> -Mark
>>>>> >>>
>>>>> >>> Dylan Baker <dylan at pnwbakers.com> writes:
>>>>> >>>
>>>>> >>>> I've pushed it to our CI, I'll let you know tomorrow what it looks like
>>>>> >>>>
>>>>> >>>> Dylan
>>>>> >>>>
>>>>> >>>> Quoting Marek Olšák (2017-10-25 19:52:43)
>>>>> >>>>> Hi Dylan,
>>>>> >>>>>
>>>>> >>>>> Can you please add this and re-test?
>>>>> >>>>>
>>>>> >>>>> diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/
>>>>> >>>>> dri/i965/intel_extensions.c
>>>>> >>>>> index 21cf632..4d17393 100644
>>>>> >>>>> --- a/src/mesa/drivers/dri/i965/intel_extensions.c
>>>>> >>>>> +++ b/src/mesa/drivers/dri/i965/intel_extensions.c
>>>>> >>>>> @@ -178,7 +178,7 @@ intelInitExtensions(struct gl_context *ctx)
>>>>> >>>>>        ctx->Extensions.ARB_pipeline_statistics_query = true;
>>>>> >>>>>        ctx->Extensions.ARB_sample_shading = true;
>>>>> >>>>>        ctx->Extensions.ARB_shading_language_420pack = true;
>>>>> >>>>> -      if (ctx->API == API_OPENGL_CORE) {
>>>>> >>>>> +      if (ctx->API != API_OPENGL_COMPAT) {
>>>>> >>>>>           ctx->Extensions.ARB_texture_buffer_object = true;
>>>>> >>>>>           ctx->Extensions.ARB_texture_buffer_object_rgb32 = true;
>>>>> >>>>>           ctx->Extensions.ARB_texture_buffer_range = true;
>>>>> >>>>>
>>>>> >>>>>
>>>>> >>>>> Marek
>>>>> >>>>>
>>>>> >>>>> On Wed, Oct 25, 2017 at 11:42 PM, Dylan Baker <dylanx.c.baker at intel.com> wrote:
>>>>> >>>>>
>>>>> >>>>>     There are a significant number of i965 regressions from
>>>>> >>>>>     d96c68146a781c79a23f5181d7050174f1070d90, largely related to texturing (I
>>>>> >>>>>     can
>>>>> >>>>>     send you a complete list of regressions if you care, but due to the large
>>>>> >>>>>     number
>>>>> >>>>>     of them I suspect it's something fairly simple).
>>>>> >>>>>
>>>>> >>>>>     For example:
>>>>> >>>>>     ES31-CTS.functional.texture.format.buffer.r32ui_npot
>>>>> >>>>>
>>>>> >>>>>     glGetIntegerv() failed: glGetError() returned GL_INVALID_ENUM at
>>>>> >>>>>     gluContextInfo.cpp:229
>>>>> >>>>>
>>>>> >>>>>     dEQP-GLES31.functional.state_query.integer.texture_buffer_
>>>>> >>>>>     binding_getinteger:
>>>>> >>>>>
>>>>> >>>>>     glGetIntegerv(GL_TEXTURE_BUFFER_BINDING, 0x00007ffee0c43834);
>>>>> >>>>>     // data = { -555819298 }
>>>>> >>>>>     glGetError();
>>>>> >>>>>     // GL_INVALID_ENUM returned
>>>>> >>>>>      // ERROR: glGetIntegerv: glGetError() returned GL_INVALID_ENUM
>>>>> >>>>>
>>>>> >>>>>     Dylan
>>>>> >>>>>
>>>>> >>>>>     Quoting Emil Velikov (2017-10-24 09:30:03)
>>>>> >>>>>     > Hi Marek,
>>>>> >>>>>     >
>>>>> >>>>>     > On 21 October 2017 at 13:54, Marek Olšák <maraeo at gmail.com> wrote:
>>>>> >>>>>     > > From: Marek Olšák <marek.olsak at amd.com>
>>>>> >>>>>     > >
>>>>> >>>>>     > > We already have piglit tests testing alpha, luminance, and intensity
>>>>> >>>>>     > > formats. They were skipped by piglit until now.
>>>>> >>>>>     > >
>>>>> >>>>>     > > Additionally, I'm enabling one ARB_texture_buffer_range piglit test to
>>>>> >>>>>     run
>>>>> >>>>>     > > with the compat profile.
>>>>> >>>>>     >
>>>>> >>>>>     > Can you please mention that ARB_texture_buffer_* on i965 is unchanged
>>>>> >>>>>     > - aka still enabled only for core profiles.
>>>>> >>>>>     > Out of curiosity - can you tried the series with anything more than
>>>>> >>>>>     piglit?
>>>>> >>>>>     >
>>>>> >>>>>     > The Intel guys can run the lot through CTS, dEQP... admittedly only on
>>>>> >>>>>     > Intel hardware.
>>>>> >>>>>     > Still it should help catch if a piece is missing somewhere.
>>>>> >>>>>     >
>>>>> >>>>>     >
>>>>> >>>>>     > -Emil
>>>>> >>>>>     > _______________________________________________
>>>>> >>>>>     > mesa-dev mailing list
>>>>> >>>>>     > mesa-dev at lists.freedesktop.org
>>>>> >>>>>     > https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>>>>> >>>>>
>>>>> >>>>>
>> From 1881027bf1840e4c83f31d30175ef2d1d11d2f8f Mon Sep 17 00:00:00 2001
>> From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak at amd.com>
>> Date: Thu, 19 Oct 2017 22:22:15 +0200
>> Subject: [PATCH 1/2] mesa: enable ARB_texture_buffer_* extensions in the
>>  Compatibility profile
>> MIME-Version: 1.0
>> Content-Type: text/plain; charset=UTF-8
>> Content-Transfer-Encoding: 8bit
>>
>> We already have piglit tests testing alpha, luminance, and intensity
>> formats. They were skipped by piglit until now.
>>
>> Additionally, I'm enabling one ARB_texture_buffer_range piglit test to run
>> with the compat profile.
>>
>> i965 behavior is unchanged.
>>
>> Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
>> Reviewed-by: Eric Anholt <eric at anholt.net>
>> ---
>>  src/mapi/glapi/gen/apiexec.py                | 12 +++++-------
>>  src/mesa/drivers/dri/i965/intel_extensions.c |  8 +++++---
>>  src/mesa/main/extensions_table.h             |  6 +++---
>>  src/mesa/main/get.c                          |  2 --
>>  src/mesa/main/get_hash_params.py             | 20 ++++++++++----------
>>  src/mesa/main/tests/dispatch_sanity.cpp      |  8 ++++----
>>  src/mesa/main/texparam.c                     |  4 ++--
>>  src/mesa/state_tracker/st_context.c          |  2 +-
>>  src/mesa/state_tracker/st_extensions.c       |  8 +++++++-
>>  src/mesa/state_tracker/st_extensions.h       |  3 ++-
>>  src/mesa/state_tracker/st_manager.c          |  2 +-
>>  11 files changed, 40 insertions(+), 35 deletions(-)
>>
>> diff --git a/src/mapi/glapi/gen/apiexec.py b/src/mapi/glapi/gen/apiexec.py
>> index 61eda4b..7da0818 100644
>> --- a/src/mapi/glapi/gen/apiexec.py
>> +++ b/src/mapi/glapi/gen/apiexec.py
>> @@ -35,7 +35,7 @@ class exec_info():
>>      Each of the attributes that is not None must have a valid value.  The
>>      valid ranges are:
>>  
>> -        compatiblity: [10, 30]
>> +        compatibility: [10, )
>>          core: [31, )
>>          es1: [10, 11]
>>          es2: [20, )
>> @@ -66,9 +66,8 @@ class exec_info():
>>          self.es2 = es2
>>  
>>  functions = {
>> -    # OpenGL 3.1 / GL_ARB_texture_buffer_object.  Mesa only exposes this
>> -    # extension with core profile.
>> -    "TexBuffer": exec_info(core=31, es2=31),
>> +    # OpenGL 3.1 / GL_ARB_texture_buffer_object.
>> +    "TexBuffer": exec_info(compatibility=20, core=31, es2=31),
>>  
>>      # OpenGL 3.2 / GL_OES_geometry_shader.
>>      "FramebufferTexture": exec_info(core=32, es2=31),
>> @@ -144,9 +143,8 @@ functions = {
>>      # GetFloati_v also GL_ARB_shader_atomic_counters
>>      # GetDoublei_v also GL_ARB_shader_atomic_counters
>>  
>> -    # OpenGL 4.3 / GL_ARB_texture_buffer_range.  Mesa can expose the extension
>> -    # with OpenGL 3.1.
>> -    "TexBufferRange": exec_info(core=31, es2=31),
>> +    # OpenGL 4.3 / GL_ARB_texture_buffer_range.
>> +    "TexBufferRange": exec_info(compatibility=20, core=31, es2=31),
>>  
>>      # OpenGL 4.3 / GL_ARB_framebuffer_no_attachments.  Mesa can expose the
>>      # extension with OpenGL 3.0.
>> diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
>> index 519d0a5..4d17393 100644
>> --- a/src/mesa/drivers/dri/i965/intel_extensions.c
>> +++ b/src/mesa/drivers/dri/i965/intel_extensions.c
>> @@ -178,9 +178,11 @@ intelInitExtensions(struct gl_context *ctx)
>>        ctx->Extensions.ARB_pipeline_statistics_query = true;
>>        ctx->Extensions.ARB_sample_shading = true;
>>        ctx->Extensions.ARB_shading_language_420pack = true;
>> -      ctx->Extensions.ARB_texture_buffer_object = true;
>> -      ctx->Extensions.ARB_texture_buffer_object_rgb32 = true;
>> -      ctx->Extensions.ARB_texture_buffer_range = true;
>> +      if (ctx->API != API_OPENGL_COMPAT) {
>> +         ctx->Extensions.ARB_texture_buffer_object = true;
>> +         ctx->Extensions.ARB_texture_buffer_object_rgb32 = true;
>> +         ctx->Extensions.ARB_texture_buffer_range = true;
>> +      }
>>        ctx->Extensions.ARB_texture_cube_map_array = true;
>>        ctx->Extensions.ARB_texture_gather = true;
>>        ctx->Extensions.ARB_texture_multisample = true;
>> diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
>> index 8d8b637..5b66e7d 100644
>> --- a/src/mesa/main/extensions_table.h
>> +++ b/src/mesa/main/extensions_table.h
>> @@ -133,9 +133,9 @@ EXT(ARB_sync                                , ARB_sync
>>  EXT(ARB_tessellation_shader                 , ARB_tessellation_shader                ,  x , GLC,  x ,  x , 2009)
>>  EXT(ARB_texture_barrier                     , NV_texture_barrier                     , GLL, GLC,  x ,  x , 2014)
>>  EXT(ARB_texture_border_clamp                , ARB_texture_border_clamp               , GLL,  x ,  x ,  x , 2000)
>> -EXT(ARB_texture_buffer_object               , ARB_texture_buffer_object              ,  x , GLC,  x ,  x , 2008)
>> -EXT(ARB_texture_buffer_object_rgb32         , ARB_texture_buffer_object_rgb32        ,  x , GLC,  x ,  x , 2009)
>> -EXT(ARB_texture_buffer_range                , ARB_texture_buffer_range               ,  x , GLC,  x ,  x , 2012)
>> +EXT(ARB_texture_buffer_object               , ARB_texture_buffer_object              , GLL, GLC,  x ,  x , 2008)
>> +EXT(ARB_texture_buffer_object_rgb32         , ARB_texture_buffer_object_rgb32        , GLL, GLC,  x ,  x , 2009)
>> +EXT(ARB_texture_buffer_range                , ARB_texture_buffer_range               , GLL, GLC,  x ,  x , 2012)
>>  EXT(ARB_texture_compression                 , dummy_true                             , GLL,  x ,  x ,  x , 2000)
>>  EXT(ARB_texture_compression_bptc            , ARB_texture_compression_bptc           , GLL, GLC,  x ,  x , 2010)
>>  EXT(ARB_texture_compression_rgtc            , ARB_texture_compression_rgtc           , GLL, GLC,  x ,  x , 2004)
>> diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
>> index e68a93b..ea8d932 100644
>> --- a/src/mesa/main/get.c
>> +++ b/src/mesa/main/get.c
>> @@ -309,8 +309,6 @@ static const int extra_GLSL_130_es3[] = {
>>  };
>>  
>>  static const int extra_texture_buffer_object[] = {
>> -   EXTRA_API_GL_CORE,
>> -   EXTRA_VERSION_31,
>>     EXT(ARB_texture_buffer_object),
>>     EXTRA_END
>>  };
>> diff --git a/src/mesa/main/get_hash_params.py b/src/mesa/main/get_hash_params.py
>> index acd5cd1..20ef6e4 100644
>> --- a/src/mesa/main/get_hash_params.py
>> +++ b/src/mesa/main/get_hash_params.py
>> @@ -442,6 +442,16 @@ descriptor=[
>>  
>>  # Enums in OpenGL and ES 3.1
>>  { "apis": ["GL", "GL_CORE", "GLES31"], "params": [
>> +# GL_ARB_texture_buffer_object / GL_OES_texture_buffer
>> +  [ "MAX_TEXTURE_BUFFER_SIZE_ARB", "CONTEXT_INT(Const.MaxTextureBufferSize), extra_texture_buffer_object" ],
>> +  [ "TEXTURE_BINDING_BUFFER_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
>> +  [ "TEXTURE_BUFFER_DATA_STORE_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, TEXTURE_BUFFER_INDEX, extra_texture_buffer_object" ],
>> +  [ "TEXTURE_BUFFER_FORMAT_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
>> +  [ "TEXTURE_BUFFER_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
>> +
>> +# GL_ARB_texture_buffer_range
>> +  [ "TEXTURE_BUFFER_OFFSET_ALIGNMENT", "CONTEXT_INT(Const.TextureBufferOffsetAlignment), extra_ARB_texture_buffer_range" ],
>> +
>>  # GL_ARB_shader_image_load_store / GLES 3.1
>>    [ "MAX_IMAGE_UNITS", "CONTEXT_INT(Const.MaxImageUnits), extra_ARB_shader_image_load_store" ],
>>    [ "MAX_VERTEX_IMAGE_UNIFORMS", "CONTEXT_INT(Const.Program[MESA_SHADER_VERTEX].MaxImageUniforms), extra_ARB_shader_image_load_store" ],
>> @@ -602,16 +612,6 @@ descriptor=[
>>  # GL_ARB_gpu_shader5 / GL_OES_geometry_shader
>>    [ "MAX_GEOMETRY_SHADER_INVOCATIONS", "CONST(MAX_GEOMETRY_SHADER_INVOCATIONS), extra_ARB_gpu_shader5_or_oes_geometry_shader" ],
>>  
>> -# GL_ARB_texture_buffer_object / GL_OES_texture_buffer
>> -  [ "MAX_TEXTURE_BUFFER_SIZE_ARB", "CONTEXT_INT(Const.MaxTextureBufferSize), extra_texture_buffer_object" ],
>> -  [ "TEXTURE_BINDING_BUFFER_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
>> -  [ "TEXTURE_BUFFER_DATA_STORE_BINDING_ARB", "LOC_CUSTOM, TYPE_INT, TEXTURE_BUFFER_INDEX, extra_texture_buffer_object" ],
>> -  [ "TEXTURE_BUFFER_FORMAT_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
>> -  [ "TEXTURE_BUFFER_ARB", "LOC_CUSTOM, TYPE_INT, 0, extra_texture_buffer_object" ],
>> -
>> -# GL_ARB_texture_buffer_range
>> -  [ "TEXTURE_BUFFER_OFFSET_ALIGNMENT", "CONTEXT_INT(Const.TextureBufferOffsetAlignment), extra_ARB_texture_buffer_range" ],
>> -
>>  # GL_OES_primitive_bounding_box
>>    [ "PRIMITIVE_BOUNDING_BOX_ARB", "CONTEXT_FLOAT8(PrimitiveBoundingBox), extra_OES_primitive_bounding_box" ],
>>  
>> diff --git a/src/mesa/main/tests/dispatch_sanity.cpp b/src/mesa/main/tests/dispatch_sanity.cpp
>> index 8c51180..d7183de 100644
>> --- a/src/mesa/main/tests/dispatch_sanity.cpp
>> +++ b/src/mesa/main/tests/dispatch_sanity.cpp
>> @@ -504,6 +504,10 @@ const struct function common_desktop_functions_possible[] = {
>>     { "glDrawArraysInstanced", 31, -1 },
>>     { "glDrawElementsInstanced", 31, -1 },
>>     { "glPrimitiveRestartIndex", 31, -1 },
>> +   { "glTexBuffer", 31, -1 },
>> +
>> +   /* GL_ARB_texture_buffer_range */
>> +   { "glTexBufferRange", 43, -1 },
>>  
>>     /* GL_ARB_shader_objects */
>>     { "glDeleteObjectARB", 31, -1 },
>> @@ -1501,9 +1505,6 @@ const struct function gl_compatibility_functions_possible[] = {
>>  };
>>  
>>  const struct function gl_core_functions_possible[] = {
>> -   /* GL 3.1 */
>> -   { "glTexBuffer", 31, -1 },
>> -
>>     /* GL 3.2 */
>>     { "glFramebufferTexture", 32, -1 },
>>  
>> @@ -1808,7 +1809,6 @@ const struct function gl_core_functions_possible[] = {
>>     { "glGetProgramResourceLocation", 43, -1 },
>>     { "glGetProgramResourceLocationIndex", 43, -1 },
>>  // { "glShaderStorageBlockBinding", 43, -1 },           // XXX: Add to xml
>> -   { "glTexBufferRange", 43, -1 },
>>  // { "glTextureBufferRangeEXT", 43, -1 },               // XXX: Add to xml
>>     { "glTexStorage2DMultisample", 43, -1 },
>>     { "glTexStorage3DMultisample", 43, -1 },
>> diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
>> index 039b933..4a0f61e 100644
>> --- a/src/mesa/main/texparam.c
>> +++ b/src/mesa/main/texparam.c
>> @@ -1287,8 +1287,8 @@ _mesa_legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target
>>         * From the OpenGL 3.1 spec:
>>         * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
>>         */
>> -      return (ctx->API == API_OPENGL_CORE && ctx->Version >= 31) ||
>> -         _mesa_has_OES_texture_buffer(ctx);
>> +      return (_mesa_is_desktop_gl(ctx) && ctx->Version >= 31) ||
>> +             _mesa_has_OES_texture_buffer(ctx);
>>     case GL_TEXTURE_CUBE_MAP_ARRAY:
>>        return _mesa_has_texture_cube_map_array(ctx);
>>     }
>> diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
>> index 5d8dd8b..a96e454 100644
>> --- a/src/mesa/state_tracker/st_context.c
>> +++ b/src/mesa/state_tracker/st_context.c
>> @@ -408,7 +408,7 @@ st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
>>     /* GL limits and extensions */
>>     st_init_limits(pipe->screen, &ctx->Const, &ctx->Extensions);
>>     st_init_extensions(pipe->screen, &ctx->Const,
>> -                      &ctx->Extensions, &st->options);
>> +                      &ctx->Extensions, &st->options, ctx->API);
>>  
>>     if (st_have_perfmon(st)) {
>>        ctx->Extensions.AMD_performance_monitor = GL_TRUE;
>> diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
>> index fa2d002..f21885f 100644
>> --- a/src/mesa/state_tracker/st_extensions.c
>> +++ b/src/mesa/state_tracker/st_extensions.c
>> @@ -578,7 +578,8 @@ get_max_samples_for_formats(struct pipe_screen *screen,
>>  void st_init_extensions(struct pipe_screen *screen,
>>                          struct gl_constants *consts,
>>                          struct gl_extensions *extensions,
>> -                        struct st_config_options *options)
>> +                        struct st_config_options *options,
>> +                        gl_api api)
>>  {
>>     unsigned i;
>>     GLboolean *extension_table = (GLboolean *) extensions;
>> @@ -1095,6 +1096,11 @@ void st_init_extensions(struct pipe_screen *screen,
>>     consts->MinMapBufferAlignment =
>>        screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
>>  
>> +   /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
>> +   if (api == API_OPENGL_COMPAT &&
>> +       screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
>> +      extensions->ARB_texture_buffer_object = GL_FALSE;
>> +
>>     if (extensions->ARB_texture_buffer_object) {
>>        consts->MaxTextureBufferSize =
>>           _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
>> diff --git a/src/mesa/state_tracker/st_extensions.h b/src/mesa/state_tracker/st_extensions.h
>> index 951185c..7bf1aa8 100644
>> --- a/src/mesa/state_tracker/st_extensions.h
>> +++ b/src/mesa/state_tracker/st_extensions.h
>> @@ -40,7 +40,8 @@ extern void st_init_limits(struct pipe_screen *screen,
>>  extern void st_init_extensions(struct pipe_screen *screen,
>>                                 struct gl_constants *consts,
>>                                 struct gl_extensions *extensions,
>> -                               struct st_config_options *options);
>> +                               struct st_config_options *options,
>> +                               gl_api api);
>>  
>>  
>>  #endif /* ST_EXTENSIONS_H */
>> diff --git a/src/mesa/state_tracker/st_manager.c b/src/mesa/state_tracker/st_manager.c
>> index eebde62..dab987c 100644
>> --- a/src/mesa/state_tracker/st_manager.c
>> +++ b/src/mesa/state_tracker/st_manager.c
>> @@ -1168,7 +1168,7 @@ get_version(struct pipe_screen *screen,
>>     _mesa_init_extensions(&extensions);
>>  
>>     st_init_limits(screen, &consts, &extensions);
>> -   st_init_extensions(screen, &consts, &extensions, options);
>> +   st_init_extensions(screen, &consts, &extensions, options, api);
>>  
>>     return _mesa_get_version(&extensions, &consts, api);
>>  }
>> -- 
>> 2.7.4
>>
>> From bbcc2d52c00744324876f309227c1b8820afef60 Mon Sep 17 00:00:00 2001
>> From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak at amd.com>
>> Date: Fri, 20 Oct 2017 04:08:29 +0200
>> Subject: [PATCH 2/2] mesa: final changes to expose OpenGL 3.1 with
>>  ARB_compatibility
>> MIME-Version: 1.0
>> Content-Type: text/plain; charset=UTF-8
>> Content-Transfer-Encoding: 8bit
>>
>> Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
>> ---
>>  docs/relnotes/17.4.0.html              |  1 +
>>  src/mesa/drivers/dri/common/dri_util.c |  7 -------
>>  src/mesa/main/extensions_table.h       |  1 +
>>  src/mesa/main/mtypes.h                 |  1 +
>>  src/mesa/main/version.c                | 13 ++++++++-----
>>  5 files changed, 11 insertions(+), 12 deletions(-)
>>
>> diff --git a/docs/relnotes/17.4.0.html b/docs/relnotes/17.4.0.html
>> index f81b5bd..a419a74 100644
>> --- a/docs/relnotes/17.4.0.html
>> +++ b/docs/relnotes/17.4.0.html
>> @@ -45,6 +45,7 @@ Note: some of the new features are only available with certain drivers.
>>  
>>  <ul>
>>  <li>Disk shader cache support for i965 when MESA_GLSL_CACHE_DISABLE environment variable is set to "0" or "false"</li>
>> +<li>OpenGL 3.1 with ARB_compatibility is supported on many gallium drivers (including radeonsi).
>>  </ul>
>>  
>>  <h2>Bug fixes</h2>
>> diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
>> index 1cff0dd..2af18ce 100644
>> --- a/src/mesa/drivers/dri/common/dri_util.c
>> +++ b/src/mesa/drivers/dri/common/dri_util.c
>> @@ -362,13 +362,6 @@ driCreateContextAttribs(__DRIscreen *screen, int api,
>>  	}
>>      }
>>  
>> -    /* Mesa does not support the GL_ARB_compatibilty extension or the
>> -     * compatibility profile.  This means that we treat a API_OPENGL_COMPAT 3.1 as
>> -     * API_OPENGL_CORE and reject API_OPENGL_COMPAT 3.2+.
>> -     */
>> -    if (mesa_api == API_OPENGL_COMPAT && major_version == 3 && minor_version == 1)
>> -       mesa_api = API_OPENGL_CORE;
>> -
>>      if (mesa_api == API_OPENGL_COMPAT
>>          && ((major_version > 3)
>>              || (major_version == 3 && minor_version >= 2))) {
>> diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
>> index 5b66e7d..2fb668e 100644
>> --- a/src/mesa/main/extensions_table.h
>> +++ b/src/mesa/main/extensions_table.h
>> @@ -40,6 +40,7 @@ EXT(ARB_clear_buffer_object                 , dummy_true
>>  EXT(ARB_clear_texture                       , ARB_clear_texture                      , GLL, GLC,  x ,  x , 2013)
>>  EXT(ARB_clip_control                        , ARB_clip_control                       , GLL, GLC,  x ,  x , 2014)
>>  EXT(ARB_color_buffer_float                  , ARB_color_buffer_float                 , GLL, GLC,  x ,  x , 2004)
>> +EXT(ARB_compatibility                       , ARB_compatibility                      , GLL,  x ,  x ,  x , 2009)
>>  EXT(ARB_compressed_texture_pixel_storage    , dummy_true                             , GLL, GLC,  x ,  x , 2011)
>>  EXT(ARB_compute_shader                      , ARB_compute_shader                     , GLL, GLC,  x ,  x , 2012)
>>  EXT(ARB_compute_variable_group_size         , ARB_compute_variable_group_size        , GLL, GLC,  x ,  x , 2013)
>> diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
>> index 2acf64e..fd5306c 100644
>> --- a/src/mesa/main/mtypes.h
>> +++ b/src/mesa/main/mtypes.h
>> @@ -4026,6 +4026,7 @@ struct gl_extensions
>>     GLboolean ARB_clear_texture;
>>     GLboolean ARB_clip_control;
>>     GLboolean ARB_color_buffer_float;
>> +   GLboolean ARB_compatibility;
>>     GLboolean ARB_compute_shader;
>>     GLboolean ARB_compute_variable_group_size;
>>     GLboolean ARB_conditional_render_inverted;
>> diff --git a/src/mesa/main/version.c b/src/mesa/main/version.c
>> index 90c5c5f..06b8e4d 100644
>> --- a/src/mesa/main/version.c
>> +++ b/src/mesa/main/version.c
>> @@ -579,11 +579,11 @@ _mesa_get_version(const struct gl_extensions *extensions,
>>  {
>>     switch (api) {
>>     case API_OPENGL_COMPAT:
>> -      /* Disable GLSL 1.40 and later for legacy contexts.
>> -       * This disallows creation of the GL 3.1 compatibility context. */
>> +      /* Disable higher GLSL versions for legacy contexts.
>> +       * This disallows creation of higher compatibility contexts. */
>>        if (!consts->AllowHigherCompatVersion) {
>> -         if (consts->GLSLVersion > 130) {
>> -            consts->GLSLVersion = 130;
>> +         if (consts->GLSLVersion > 140) {
>> +            consts->GLSLVersion = 140;
>>           }
>>        }
>>        /* fall through */
>> @@ -611,10 +611,13 @@ _mesa_compute_version(struct gl_context *ctx)
>>     ctx->Version = _mesa_get_version(&ctx->Extensions, &ctx->Const, ctx->API);
>>     ctx->Extensions.Version = ctx->Version;
>>  
>> +   if (ctx->API == API_OPENGL_COMPAT && ctx->Version >= 31)
>> +      ctx->Extensions.ARB_compatibility = GL_TRUE;
>> +
>>     /* Make sure that the GLSL version lines up with the GL version. In some
>>      * cases it can be too high, e.g. if an extension is missing.
>>      */
>> -   if (ctx->API == API_OPENGL_CORE) {
>> +   if (_mesa_is_desktop_gl(ctx) && ctx->Version >= 31) {
>>        switch (ctx->Version) {
>>        case 31:
>>           ctx->Const.GLSLVersion = 140;
>> -- 
>> 2.7.4
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