[Mesa-dev] [PATCH 00/16] Enable OpenGLES 3.1 on Haswell

[Ian Romanick]

On 08/24/2016 04:54 PM, Jordan Justen wrote:
> git://people.freedesktop.org/~jljusten/mesa hsw-es31-v1
> 
> Since gen7 doesn't support sampling from a stencil buffer, we copy the
> stencil texture to an R8_UINT texture, and sample from it instead.
> 
> This allows us to enable ARB_stencil_texturing and OpenGLES 3.1 on
> Haswell.
> 
> Ivy Bridge and Baytrail require additional (in progress) work to fix
> some integer border color sampling issues.

Once the IVB and BYT work lands, I'll send patches to enable the other
GL_OES_shader_io_blocks and GL_OES_geometry_shader on those platforms.

I sent a couple minor nits on 4, 10, and 12.  With or without those
changes, the series is

Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

It would still be good for someone who actually understands (ha!) the
miptree code to review too.

> Jordan Justen (16):
>   main: Add MESA_VERBOSE=api support for glTexImage
>   main: Add MESA_VERBOSE=api support for glClearStencil
>   i965/hsw: Don't advertise more than 64 threads for compute shaders
>   i965/hsw: Adjust uploading default color for stencil surfaces
>   i965: Fix assert with multisampling and cubemaps
>   i965/gen7: Add R8_UINT stencil miptree copy for sampling
>   i965: Track that the stencil data was updated when clearing
>   i965: Track that the stencil data was updated when rendering
>   i965: Track that the stencil data was updated when using Tex*Image
>   i965: Add function to copy a stencil miptree to an R8_UINT miptree
>   i965/gen7: Copy stencil when sampling the stencil texture
>   i965/gen7: Use R8_UINT stencil copy when sampling the stencil texture
>   i965: Enable ARB_stencil_texturing for Haswell
>   i965: Enable ARB_texture_stencil8 for Haswell
>   i965: Enable OpenGLES 3.1 for Haswell
>   docs: Update stencil texturing & ES 3.1 status for i965 Haswell
> 
>  docs/GL3.txt                                     |  6 +--
>  docs/relnotes/12.1.0.html                        |  3 ++
>  src/mesa/drivers/dri/i965/brw_clear.c            |  8 +++
>  src/mesa/drivers/dri/i965/brw_context.c          | 44 +++++++++++------
>  src/mesa/drivers/dri/i965/brw_sampler_state.c    |  8 ++-
>  src/mesa/drivers/dri/i965/brw_wm_surface_state.c | 13 ++++-
>  src/mesa/drivers/dri/i965/gen7_misc_state.c      |  1 +
>  src/mesa/drivers/dri/i965/intel_extensions.c     |  7 ++-
>  src/mesa/drivers/dri/i965/intel_mipmap_tree.c    | 63 ++++++++++++++++++++++--
>  src/mesa/drivers/dri/i965/intel_mipmap_tree.h    | 16 ++++++
>  src/mesa/drivers/dri/i965/intel_screen.c         |  5 ++
>  src/mesa/drivers/dri/i965/intel_tex_image.c      |  3 ++
>  src/mesa/drivers/dri/i965/intel_tex_subimage.c   |  7 ++-
>  src/mesa/main/stencil.c                          |  3 ++
>  src/mesa/main/teximage.c                         |  5 ++
>  15 files changed, 164 insertions(+), 28 deletions(-)