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0a93c0364c
The Vulkan 1.2.184 spec says:
"When creating a VkImageView, if sampler Y′CBCR conversion is
enabled in the sampler, the aspectMask of a subresourceRange used by
the VkImageView must be VK_IMAGE_ASPECT_COLOR_BIT.
When creating a VkImageView, if sampler Y′CBCR conversion is not
enabled in the sampler and the image format is multi-planar, the
image must have been created with
VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT, and the aspectMask of the
VkImageView’s subresourceRange must be VK_IMAGE_ASPECT_PLANE_0_BIT,
VK_IMAGE_ASPECT_PLANE_1_BIT or VK_IMAGE_ASPECT_PLANE_2_BIT."
Previously, for YCbCr images, we were flipping this around. For single-
plane views where VK_IMAGE_ASPECT_PLANE_N_BIT would be passed in by the
app, we would store VK_IMAGE_ASPECT_COLOR_BIT. For multi-plane views
where the client says VK_IMAGE_ASPECT_COLOR_BIT, we would store a all of
the planes. (There was also an extra bit of remapping that would
compact the planes in the non-existent case of a format with a non-
contiguous set of planes.) The idea behind this was that for things
like rendering or single-plane sampling, storage, or compute, we want it
to look as much like a single-plane image as possible but we wanted the
multi-plane case to be the awkward one.
This commit changes it around so that iview->aspects is always exactly
the subset of image->vk.aspects represented by the view. This is
identical to how aspects work for depth/stencil so it gains us some
consistency.
This commit also changes anv_image_view::aspect_mask to aspects to force
a full audit of the field. As can be seen, there are only a few uses of
this field and they're all mostly fine:
- A bunch of them are used to check for depth/stencil. That hasn't
changed.
- Most of the checks for color already used ANY_COLOR_BIT, only one
needed fixing.
- There's a check that both src/depth are color for MSAA resolves.
However, we don't support MSAA on YCbCr so there's no point in
checking for ANY_COLOR_BIT.
There is a hidden usage of planes in anv_descriptor_set_write_image_view
that's not as obvious. However, this function simply looks at
anv_image_view::n_planes and blindly fills out the descriptor
accordingly. As long as image views with a single plane continue to
claim n_planes == 1, this will be fine.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12141>
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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.