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radv: only emit the per-vertex VRS state if the pipeline forced it

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If the primitive shading rate is not written by the last VGT stage
(like if no FS), it's useless to emit the VRS state.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14907>
This commit is contained in:
Samuel Pitoiset 2022-02-07 11:31:13 +01:00
parent d0171dffe1
commit 53dc5f774d
1 changed files with 2 additions and 1 deletions
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3
src/amd/vulkan/radv_pipeline.c
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@ -5753,7 +5753,8 @@ gfx103_pipeline_generate_vrs_state(struct radeon_cmdbuf *ctx_cs,
mode = V_028064_VRS_COMB_MODE_OVERRIDE;
rate_x = rate_y = 1;
} else if (!vk_find_struct_const(pCreateInfo->pNext, PIPELINE_FRAGMENT_SHADING_RATE_STATE_CREATE_INFO_KHR) &&
pipeline->device->force_vrs != RADV_FORCE_VRS_NONE) {
pipeline->device->force_vrs != RADV_FORCE_VRS_NONE &&
get_vs_output_info(pipeline)->writes_primitive_shading_rate) {
/* Otherwise, if per-draw VRS is not enabled statically, try forcing per-vertex VRS if
* requested by the user. Note that vkd3d-proton always has to declare VRS as dynamic because
* in DX12 it's fully dynamic.