Instead of having a hardcoded list of endian-independent format aliases
in the header, generate them from the format definitions.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29649>
Compressed textures have two additional quirks that affect the tiling
code (but not the mip offsets): they get extra stride padding in some
cases for the large miptree, and the tile size is based on the POT size
and not the real size for the small miptree.
Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26614>
For compressed textures, mip levels > 0 can have additional stride
padding. This (in some cases) affects the tile stride calculation, so it
cannot be implicitly represented with the existing members.
Add an explicit array containing the stride, in elements, of each
miptree level. The tiling code uses this instead of the minified and
element-aligned width when computing tile addressing.
This commit should be a functional no-op.
Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26614>
For compressed textures, the POT miptree starting size is calculated
backwards (POT then minify instead of minify then POT).
In addition, the existing POT miptree start level code does not work for
compressed textures. Due to the extra block alignment requirement each
step of the way, we can no longer get away with nice log-based O(1)
math. Switch to a loop. This should be equivalent for uncompressed
textures, but yields different results with compression (element size >
1x1).
Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26614>
When rendering to a layered depth/stencil attachment, we specify the layer
stride in pages. That means that depth/stencil targets must be page-aligned to
be rendered to correctly.
If we're merely sampling, not rendering, we do not need the extra alignment. So
we add a flag to handle this case so we keep passing the generated ail tests.
Fixes KHR-GLES31.core.texture_cube_map_array.color_depth_attachments
Similarly, we page-align colour attachments. I don't have a good theoretical
justification for this part, but it seems to be necessary and layered rendering
fails otherwise. Possibly the PBE requires page-aligned layers unconditionally?
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25052>
This tests the following matrix:
- Format: RGBA8Unorm, RGBA16Unorm, RGBA32Float
- Samples: 2 or 4
- Layers: 1 or 2
- Width: Interesting values 1..4097
- Height: Interesting values 1..4097
Compression is based on the dimensions (that is, everything that can be
compressed is). This test compares both the total texture size and the
compression metadata offset.
Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22971>
We need to support up to 16 bytes/sample * 4 samples/pixel = 64 bytes/pixel for
multisampling to work with formats like RGBA32F.
Fixes dEQP-GLES3.functional.fbo.msaa.4_samples.rgba32f
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22971>
For multisampled textures, the decision about whether to compress or not
is based on the effective width and height in samples, not pixels.
Introduce ail_can_compress() to encode this logic in ail, so the driver
can use it to decide whether to compress or not before the full layout
is determined.
Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22971>
Also drop my email address in the copyright lines and fix some "Copyright 208
Alyssa Rosenzweig" lines, I'm not *that* old. Together this drops a lot of
boilerplate without losing any meaningful licensing information. SPDX is already
in use for the MIT-licensed code in turnip, venus, and a few other scattered
parts of the tree, so this should be ok from a Mesa licensing standpoint.
This reduces friction to create new files, by parsing the copy/paste boilerplate
and being short enough you can easily type it out if you want. It makes new
files seem less daunting: 20 lines of header for 30 lines of code is
discouraging, but 2 lines of header for 30 lines of code is reasonable for a
simple compiler pass. This has technical effects, as lowering the barrier to
making new files should encourage people to split code into more modular files
with (hopefully positive) effects on project compile time.
This helps with consistency between files. Across the tree we have at least a
half dozen variants of the MIT license text (probably more), plus code that uses
SPDX headers instead. I've already been using SPDX headers in Asahi manually, so
you can tell old vs new code based on the headers.
Finally, it means less for reviewers to scroll through adding files. Minimal
actual cognitive burden for reviewers thanks to banner blindness, but the big
headers still bloat diffs that add/delete files.
I originally proposed this in December (for much more of the tree) but someone
requested I wait until January to discuss. I've been trying to get in touch with
them since then. It is now almost April and, with still no response, I'd like to
press forward with this. So with a joint sign-off from the major authors of the
code in question, let's do this.
Signed-off-by: Asahi Lina <lina@asahilina.net>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Emma Anholt <emma@anholt.net>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Rose Hudson <rose@krx.sh>
Acked-by: Lyude Paul [over IRC: "yes I'm fine with that"]
Meh'd-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22062>
Currently, the generated tests consist of some boilerplate, generated
test cases, and at the very end the actual test. This is bad for readability,
because the actual code is all the way at the bottom. It's also bad for
clang-format linting: even though the test cases are /* clang-format off */,
they still take an exceptionally long time to parse when linting. I suspect this
is a clang-format bug, but it's easy enough to workaround.
To solve these issues, restructure so that the test cases are in separate files
(containing the actual data), but the manually written test functions are
consolidated into a new family of generated layout tests. This is probably
cleaner.
Parallel clang-format linting is now 10x faster on the M1, which means it's
now practical to lint in my "publish branch" hook.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21854>
