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agx: fix xfb of invalid comp

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KHR-Single-GL44.enhanced_layouts.xfb_capture_inactive_output_component

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26963>
This commit is contained in:
Alyssa Rosenzweig 2024-01-01 09:12:23 -04:00
parent 4071baf1b3
commit e0c1776187
1 changed files with 8 additions and 0 deletions
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8
src/asahi/lib/agx_nir_lower_gs.c
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@ -645,6 +645,14 @@ write_xfb(nir_builder *b, struct lower_gs_state *state, unsigned stream,
unsigned v = (verts - 1) - vert;
nir_def *value = nir_load_var(b, state->outputs[output.location][v]);
/* In case output.component_mask contains invalid components, write
* out zeroes instead of blowing up validation.
*
* KHR-Single-GL44.enhanced_layouts.xfb_capture_inactive_output_component
* hits this.
*/
value = nir_pad_vector_imm_int(b, value, 0, 4);
nir_store_global(b, addr, 4,
nir_channels(b, value, output.component_mask),
nir_component_mask(count));