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3dab73159b
We need to handle plane offsets everywhere. I noticed this broken before but
didn't realize it was a GL driver issue. Fix is easy, wrote this on my sofa
while waking up in the morning.
Fixes gst-launch-1.0 v4l2src ! glimagesink
Note that cheese & snapshot both still hang for some reason due to
libgstpipewire, but the Mesa side should be fine now.
Closes: #14217
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Cc: mesa-stable
(cherry picked from commit
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| formats.c | ||
| layout.c | ||
| layout.h | ||
| meson.build | ||
| README | ||
| tiling.cc | ||
# ail ail is a small library for working with the image (and buffer) layouts encountered with AGX hardware. Its design is inspired by isl. In particular, ail strives to use isl unit suffixes and to represent quantities in a canonical, API-agnostic fashion. ail conventions differ slightly from isl. See the isl documentation in mesa/docs/isl for the conventions that inspired ail, in particular mesa/docs/isl/units.rst. In ail, we have the following units: **Bytes (B)**: 8-bits. **Samples (sa)**: An individual sample. The number of bytes per sample depends on the format. **Pixels (px)**: The unit everything starts as from the API. A pixel contains a fixed number of samples, given as the layout's `sample_count_sa`. For twiddled layouts, these samples are stored together in emmory. **Elements (el)**: For a block-compressed format, a single compression block containing multiple pixels. Otherwise, equal to a single pixel. **Tiles (tiles)**: Defined only for tiled/twiddled layouts. A group of elements forming the layout-specific tile. We do not support any multisampled block-compressed layouts, so either pixels equals either samples or elements.