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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
a4e13063ed
gbm_bo_map returns a stride for the mapping, which may differ from the stride of the underlying BO. Drivers may implement mappings via staging blits, returning a map of a temporary resource instead. That temporary may have fewer stride restrictions (i.e. it isn't used for display), and thus be more tightly packed, saving memory. However, gbm_gralloc has a design flaw where after calling gbm_bo_map, it asserts that the stride exactly matches the original BO's stride: assert(stride == gbm_bo_get_stride(bo)); This is a bad assumption, as the GBM API returns a stride explicitly precisely because it -can- differ. But, this would require significant changes to gbm_gralloc to fix. So, to work around it, we add a driver hack for Android-only that forces staging maps of any external BO to use the original resource's stride. This should fix issues with mapping cursor planes and SW media codec uploads on Android-x86. Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/7974 Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22156> |
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| VERSION | ||
`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.