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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
a7ccba2dfd
Here we were aliasing the full compressed image with an uncompressed format that we would then use for sampling during the blit copy. This had 2 issues: 1. Uncompressed image views would have smaller dimensions than the compressed image, and thus, would also have less mip levels. 2. When sampling from smaller mip levels, the hw internally computes the size of the mip level from the size of level 0, which then uses to interpret the texture coordinates, but for some texture sizes this size would not be an exact match for compressed and uncompressed views. To fix this, we modify the aliasing technique to only alias the miplevel selected in the copy as a level 0 image and we ensure the slice 0 for that image matches exactly the slice description of the aliased mip level in the original image. Fixes all test failures in dEQP-VK.api.copy_and_blit.core.image_to_buffer.* for compressed formats when we forcefully disable the TLB path. Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23919> |
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`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `OFTC's #dri-devel <irc://irc.oftc.net/dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.