[Bug 109134] ../mesa-18.3.1/src/intel/isl/isl_surface_state.c:481: isl_gen7_surf_fill_state_s: Assertion `isl_swizzle_is_identity(info->view->swizzle)' failed.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Jan 3 00:03:35 UTC 2019


--- Comment #4 from Jason Ekstrand <jason at jlekstrand.net> ---
We support it on Ivy Bridge with OpenGL using a shader re-compile mechanism
that doesn't work and isn't practical to support in Vulkan.  Starting at
Haswell, the hardware supports texture swizzle directly and we rely on that for
Vulkan.  As I said above, it would be possible to implement with shader code
but it's quite a bit of work and significantly harder than what we do in

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