[Mesa-dev] [PATCH 00/27] intel: Add ETC2 compressed textures support

[Anuj Phogat]

On Fri, Oct 19, 2012 at 4:28 PM, Anuj Phogat <anuj.phogat at gmail.com> wrote:
> This series lives on my etc2-v9 branch (https://github.com/aphogat/mesa).
>
> This series enables 8 out of 10 ETC2 texture formats for all Intel
> hardware by simply decoding the ETC2 data into RGBX data at the time
> of glCompressedTexImage2D. These patches can be tested using piglit
> test case i have added for etc2 textures. Patches for the test are under
> review on piglit mailing list.
>
> I'll soon post the patches for remaining 2 etc2 formats as well.
>
> Anuj Phogat (27):
>   mesa: Use MESA_GL_VERSION_OVERRIDE in compute_version_es2()
>   mesa: Add a new texture format GL_COMPRESSED_RGB8_ETC2
>   mesa: Add decoding functions for GL_COMPRESSED_RGB8_ETC2
>   intel: Enable the support for GL_COMPRESSED_RGB8_ETC2 textures
>   mesa: Add necessary support to decode multiple ETC2 texture formats
>   intel: Add necessary support to decode multiple ETC2 texture formats
>   mesa: Add a new texture format GL_COMPRESSED_SRGB8_ETC2
>   mesa: Add decoding functions for GL_COMPRESSED_SRGB8_ETC2
>   intel: Enable support for GL_COMPRESSED_SRGB_ETC2 textures
>   mesa: Add a new texture format GL_COMPRESSED_RGBA8_ETC2_EAC
>   mesa: Add decoding functions for GL_COMPRESSED_RGBA8_ETC2_EAC
>   intel: Enable support for GL_COMPRESSED_RGBA8_ETC2_EAC textures
>   mesa: Add a new texture format GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
>   mesa: Add decoding functions for GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
>   intel: Enable support for GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
>     textures
>   Add a new texture format GL_COMPRESSED_R11_EAC
>   mesa: Add decoding functions for GL_COMPRESSED_R11_EAC
>   intel: Enable support for GL_COMPRESSED_R11_EAC textures
>   Add a new texture format GL_COMPRESSED_RG11_EAC
>   mesa: Add decoding functions for GL_COMPRESSED_RG11_EAC
>   intel: Enable support for GL_COMPRESSED_RG11_EAC textures
>   Add a new texture format GL_COMPRESSED_SIGNED_R11_EAC
>   mesa: Add decoding functions for GL_COMPRESSED_SIGNED_R11_EAC
>   intel: Enable support for GL_COMPRESSED_SIGNED_R11_EAC textures
>   mesa: Add a new texture format GL_COMPRESSED_SIGNED_RG11_EAC
>   mesa: Add decoding functions for GL_COMPRESSED_SIGNED_RG11_EAC
>   intel: Enable support for GL_COMPRESSED_SIGNED_RG11_EAC textures
>
>  src/mesa/drivers/dri/i965/brw_wm_surface_state.c |   12 +
>  src/mesa/drivers/dri/intel/intel_mipmap_tree.c   |   96 ++-
>  src/mesa/drivers/dri/intel/intel_mipmap_tree.h   |   21 +-
>  src/mesa/main/format_unpack.c                    |   57 +-
>  src/mesa/main/formats.c                          |  109 ++
>  src/mesa/main/formats.h                          |    8 +
>  src/mesa/main/glformats.c                        |   17 +
>  src/mesa/main/texcompress.c                      |   83 ++
>  src/mesa/main/texcompress_etc.c                  | 1159 +++++++++++++++++++++-
>  src/mesa/main/texcompress_etc.h                  |   63 ++-
>  src/mesa/main/texformat.c                        |   31 +
>  src/mesa/main/teximage.c                         |   19 +
>  src/mesa/main/texstore.c                         |    8 +
>  src/mesa/main/version.c                          |    2 +
>  14 files changed, 1666 insertions(+), 19 deletions(-)
>
> --
> 1.7.7.6
>

I would love to see more review comments on my patch series for etc2 formats
before I push it upstream. I know this is a big series but most of the
patches are
pretty much similar. I'm expecting to find a bug in my implementation for signed
formats, as the decompressed images look little darker than expected.
Both series posted by me now lives on my 'etc2-v12' branch:
[PATCH 00/27] intel: Add ETC2 compressed textures support
[PATCH 0/6] intel: Add support for remaining ETC2 texture formats

Piglit test to verify etc2 implementation:
[PATCH 1/2] etc2: Add test to verify texturing with etc2 miptree
[PATCH 2/2] etc2: Add testing for signed-r11 and signed-rg11 formats
[PATCH] etc2: Add testing for remaining formats

Issues with etc2 support in swrast are now resolved and tested. You can find the
fix in my 'etc2-v12.1' branch.

Thanks
Anuj