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Panfrost blits are implemented using u_blitter which exposes the draw_rectangle handler for drivers to blit with dedicated GPU support. By default, it ends up blitting with a draw_vbo call on the pipe. In Panfrost, draw_vbo then emits a full-featured draw call using an indexed or malloc vertex shader job on pre-CSF GPUs or a RUN_IDVS instruction on CSF GPUs. Since v9, Mali GPUs expose a lighter draw call with the FullScreenJob descriptor on pre-CSF GPUs or with the RUN_FULLSCREEN instruction on CSF GPUs. These draw calls emit a quad primitive into the polygon list and run tiling of a fullscreen fragment job without vertex processing. This commit adds the infrastructure to implement blits using fullscreen draw calls. It supports all types of blits apart from the instanced ones. Partial blits are supported using scissors and textured blits are supported using varying interpolation and fragment shading. Signed-off-by: Loïc Molinari <loic.molinari@collabora.com> Reviewed-by: Ashley Smith <ashley.smith@collabora.com> Acked-by: Boris Brezillon <boris.brezillon@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40124> |
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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://docs.mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_): .. code-block:: sh $ meson setup build $ ninja -C build/ $ sudo ninja -C build/ 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://docs.mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://docs.mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.