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etnaviv: validate number of VS outputs against GPU limit

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All user defined varyings, the position output and possibly the
point size output need to fit into the GPU specific maximum
number of VS outputs. Check this limitation.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31032>
This commit is contained in:
Lucas Stach 2024-09-04 15:59:45 +02:00 • committed by Marge Bot
parent 21a5370f9c
commit dcb61d3da5
1 changed files with 12 additions and 0 deletions
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12
src/gallium/drivers/etnaviv/etnaviv_compiler_nir.c
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@ -1063,6 +1063,18 @@ etna_compile_check_limits(struct etna_shader_variant *v)
return false;
}
if (v->stage == MESA_SHADER_VERTEX) {
int num_outputs = v->vs_pointsize_out_reg >= 0 ? 2 : 1;
num_outputs += v->outfile.num_reg;
if (num_outputs > specs->max_vs_outputs) {
DBG("Number of VS outputs (%zu) exceeds maximum %d",
v->outfile.num_reg, specs->max_vs_outputs);
return false;
}
}
return true;
}