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util/vbuf: always claim support for PATCHES in restart modes

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this avoids forcing rewrites for patch mode which break tessellation

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11608>
This commit is contained in:
Mike Blumenkrantz 2021-06-25 10:44:25 -04:00 committed by Marge Bot
parent fd5293cc43
commit 00272aa4a1
2 changed files with 2 additions and 1 deletions
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2
docs/gallium/screen.rst
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@ -617,7 +617,7 @@ The integer capabilities:
* ``PIPE_CAP_SAMPLER_REDUCTION_MINMAX_ARB``: Driver supports ARB min/max sampler reduction with format queries.
* ``PIPE_CAP_EMULATE_NONFIXED_PRIMITIVE_RESTART``: Driver requests all draws using a non-fixed restart index to be rewritten to use a fixed restart index.
* ``PIPE_CAP_SUPPORTED_PRIM_MODES``: A bitmask of the ``pipe_prim_type`` enum values that the driver can natively support.
* ``PIPE_CAP_SUPPORTED_PRIM_MODES_WITH_RESTART``: A bitmask of the ``pipe_prim_type`` enum values that the driver can natively support for primitive restart. Only useful if ``PIPE_CAP_PRIMITIVE_RESTART`` is also exported. ``PIPE_PRIM_PATCHES`` must be supported to prevent incorrect lowering of primitive restart.
* ``PIPE_CAP_SUPPORTED_PRIM_MODES_WITH_RESTART``: A bitmask of the ``pipe_prim_type`` enum values that the driver can natively support for primitive restart. Only useful if ``PIPE_CAP_PRIMITIVE_RESTART`` is also exported.
.. _pipe_capf:

1
src/gallium/auxiliary/util/u_vbuf.c
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@ -309,6 +309,7 @@ void u_vbuf_get_caps(struct pipe_screen *screen, struct u_vbuf_caps *caps,
screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FIXED_INDEX)) {
caps->rewrite_restart_index = screen->get_param(screen, PIPE_CAP_EMULATE_NONFIXED_PRIMITIVE_RESTART);
caps->supported_restart_modes = screen->get_param(screen, PIPE_CAP_SUPPORTED_PRIM_MODES_WITH_RESTART);
caps->supported_restart_modes |= BITFIELD_BIT(PIPE_PRIM_PATCHES);
caps->fallback_always |= caps->rewrite_restart_index;
}
caps->supported_prim_modes = screen->get_param(screen, PIPE_CAP_SUPPORTED_PRIM_MODES);