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Simon Ser d71ed635b9 backend/drm: force linear layout for multi-GPU buffers ... Some buffers need to be copied across GPUs. Such buffers need to be allocated with a format and modifier suitable for both the source and the destination. When explicit modifiers aren't supported, we were forcing the buffers to be allocated with a linear layout, because implicit modifiers aren't portable across GPUs. All is well with this case. When explicit modifiers are supported, we were advertising the whole list of destination modifiers, in the hope that the source might have some in common and might be able to allocate a buffer with a more optimized layout. This works well if the source supports explicit modifiers. However, if the source doesn't, then wlr_drm_format_intersect will fallback to implicit modifiers, and everything goes boom: the source uses a GPU-specific tiling and the destination interprets it as linear. To avoid this, just force linear unconditionally. We'll be able to revert this once we have a good way to indicate that an implicit modifier isn't supported in wlr_drm_format_set, see [1]. [1]: https://github.com/swaywm/wlroots/pull/2815 Closes: https://github.com/swaywm/wlroots/issues/3030		4 years ago
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drm	backend/drm: force linear layout for multi-GPU buffers	4 years ago
headless	buffer: make enum wlr_buffer_cap public	4 years ago
libinput	Fix invalid uses of wl_array_for_each	4 years ago
multi	backend: introduce wlr_backend_finish	4 years ago
noop	backend: add output state allow-lists	4 years ago
session	backend/session: use DRM_PRIMARY_MINOR_NAME	4 years ago
wayland	backend/wayland: send touch frame events	4 years ago
x11	backend/x11: send touch frame events	4 years ago
backend.c	backend: automatically create allocator	4 years ago
meson.build	Drop RDP backend	5 years ago