From: Nicolai Hähnle <nicolai.haeh...@amd.com>
Not that those are super common or useful, but hey! Fun corner cases
of the API...
Fixes dEQP-GLES31.functional.geometry_shading.emit.*
Cc: mesa-sta...@lists.freedesktop.org
---
src/gallium/drivers/radeonsi/si_state_shaders.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c
b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 53a60ba11ed..985ee130e6d 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -637,23 +637,25 @@ static void gfx9_get_gs_info(struct si_shader_selector
*es,
assert(gs_num_invocations <= 32); /* GL maximum */
if (uses_adjacency || gs_num_invocations > 1)
max_gs_prims = 127 / gs_num_invocations;
else
max_gs_prims = 255;
/* MAX_PRIMS_PER_SUBGROUP = gs_prims * max_vert_out * gs_invocations.
* Make sure we don't go over the maximum value.
*/
- max_gs_prims = MIN2(max_gs_prims,
- max_out_prims /
- (gs->gs_max_out_vertices * gs_num_invocations));
+ if (gs->gs_max_out_vertices > 0) {
+ max_gs_prims = MIN2(max_gs_prims,
+ max_out_prims /
+ (gs->gs_max_out_vertices *
gs_num_invocations));
+ }
assert(max_gs_prims > 0);
/* If the primitive has adjacency, halve the number of vertices
* that will be reused in multiple primitives.
*/
min_es_verts = gs->gs_input_verts_per_prim / (uses_adjacency ? 2 : 1);
gs_prims = MIN2(ideal_gs_prims, max_gs_prims);
worst_case_es_verts = MIN2(min_es_verts * gs_prims, max_es_verts);
--
2.11.0
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