[Mesa-dev] [PATCH 0/6] OpenGL 3.1 + ARB_compatibility and related stuff (v2)

[Marek Olšák]

i965 doesn't report GL 3.1 because it doesn't expose TBOs in the
default GL profile.

Marek

On Thu, Feb 15, 2018 at 2:49 AM, Mike Lothian <mike at fireburn.co.uk> wrote:
> On 15 February 2018 at 00:11, Marek Olšák <maraeo at gmail.com> wrote:
>> Hi,
>>
>> This is the second version of GL 3.1 compatibility support patches.
>> There is also ARB_enhanced_layouts for the compatibility context and
>> other related changes.
>>
>> Please review.
>>
>> Thanks,
>> Marek
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
> So I've done my best to test this. These are the diffs between the
> glxinfo reports before and after on radeonsi and i965
>
>
> fireburn at axion ~ $ diff -u glxinfo.amdgpu.core glxinfo.amdgpu.compat
> --- glxinfo.amdgpu.core 2018-02-15 01:05:48.081778762 +0000
> +++ glxinfo.amdgpu.compat       2018-02-15 01:39:04.727660602 +0000
> @@ -105,7 +105,7 @@
>     Unified memory: no
>     Preferred profile: core (0x1)
>     Max core profile version: 4.5
> -    Max compat profile version: 3.0
> +    Max compat profile version: 3.1
>     Max GLES1 profile version: 1.1
>     Max GLES[23] profile version: 3.1
> Memory info (GL_ATI_meminfo):
> @@ -121,7 +121,7 @@
>     Currently available dedicated video memory: 4089 MB
> OpenGL vendor string: X.Org
> OpenGL renderer string: AMD Radeon R9 M295X (TONGA / DRM 3.25.0 /
> 4.15.0-rc8-agd5f+, LLVM 7.0.0)
> -OpenGL core profile version string: 4.5 (Core Profile) Mesa
> 18.1.0-devel (git-0cd37f9178)
> +OpenGL core profile version string: 4.5 (Core Profile) Mesa
> 18.1.0-devel (git-c6694793e1)
> OpenGL core profile shading language version string: 4.50
> OpenGL core profile context flags: (none)
> OpenGL core profile profile mask: core profile
> @@ -325,8 +325,8 @@
>     GL_S3_s3tc
>
>
> -OpenGL version string: 3.0 Mesa 18.1.0-devel (git-0cd37f9178)
> -OpenGL shading language version string: 1.30
> +OpenGL version string: 3.1 Mesa 18.1.0-devel (git-c6694793e1)
> +OpenGL shading language version string: 1.40
> OpenGL context flags: (none)
> OpenGL extensions:
>     GL_AMD_conservative_depth
> @@ -350,6 +350,7 @@
>     GL_ARB_clear_texture
>     GL_ARB_clip_control
>     GL_ARB_color_buffer_float
> +    GL_ARB_compatibility
>     GL_ARB_compressed_texture_pixel_storage
>     GL_ARB_compute_shader
>     GL_ARB_compute_variable_group_size
> @@ -367,6 +368,7 @@
>     GL_ARB_draw_buffers_blend
>     GL_ARB_draw_elements_base_vertex
>     GL_ARB_draw_instanced
> +    GL_ARB_enhanced_layouts
>     GL_ARB_explicit_attrib_location
>     GL_ARB_explicit_uniform_location
>     GL_ARB_fragment_coord_conventions
> @@ -588,7 +590,7 @@
>     GL_SUN_multi_draw_arrays
>
>
> -OpenGL ES profile version string: OpenGL ES 3.1 Mesa 18.1.0-devel
> (git-0cd37f9178)
> +OpenGL ES profile version string: OpenGL ES 3.1 Mesa 18.1.0-devel
> (git-c6694793e1)
> OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
> OpenGL ES profile extensions:
>     GL_ANGLE_texture_compression_dxt3
> fireburn at axion ~ $ diff -u glxinfo.intel.core glxinfo.intel.compat
> --- glxinfo.intel.core  2018-02-15 01:05:53.581770479 +0000
> +++ glxinfo.intel.compat        2018-02-15 01:38:54.077684665 +0000
> @@ -111,7 +111,7 @@
>     Max GLES[23] profile version: 3.2
> OpenGL vendor string: Intel Open Source Technology Center
> OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 530 (Skylake GT2)
> -OpenGL core profile version string: 4.5 (Core Profile) Mesa
> 18.1.0-devel (git-0cd37f9178)
> +OpenGL core profile version string: 4.5 (Core Profile) Mesa
> 18.1.0-devel (git-c6694793e1)
> OpenGL core profile shading language version string: 4.50
> OpenGL core profile context flags: (none)
> OpenGL core profile profile mask: core profile
> @@ -309,8 +309,8 @@
>     GL_S3_s3tc
>
>
> -OpenGL version string: 3.0 Mesa 18.1.0-devel (git-0cd37f9178)
> -OpenGL shading language version string: 1.30
> +OpenGL version string: 3.0 Mesa 18.1.0-devel (git-c6694793e1)
> +OpenGL shading language version string: 1.40
> OpenGL context flags: (none)
> OpenGL extensions:
>     GL_3DFX_texture_compression_FXT1
> @@ -557,7 +557,7 @@
>     GL_SUN_multi_draw_arrays
>
>
> -OpenGL ES profile version string: OpenGL ES 3.2 Mesa 18.1.0-devel
> (git-0cd37f9178)
> +OpenGL ES profile version string: OpenGL ES 3.2 Mesa 18.1.0-devel
> (git-c6694793e1)
> OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
> OpenGL ES profile extensions:
>     GL_ANDROID_extension_pack_es31a
>
> I'm not aware of anything that uses OpenGL 3.1 Compat or the
> ARB_compatability extension, but if you know of anything I'll test it
> directly
>
> Should i965 show the extra extensions or a higher compat version as
> well as the bump to the GLSL version?
>
> My games continue to work after this change is applied
>
> Tested-by: Mike Lothian <mike at fireburn.co.uk>