Signed-off-by: Samuel Iglesias Gonsálvez <sigles...@igalia.com>
---
src/compiler/spirv/vtn_glsl450.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/src/compiler/spirv/vtn_glsl450.c b/src/compiler/spirv/vtn_glsl450.c
index b62641f3db5..e9b1b0b8fec 100644
--- a/src/compiler/spirv/vtn_glsl450.c
+++ b/src/compiler/spirv/vtn_glsl450.c
@@ -588,6 +588,8 @@ handle_glsl450_alu(struct vtn_builder *b, enum GLSLstd450
entrypoint,
struct vtn_value *val = vtn_push_value(b, w[2], vtn_value_type_ssa);
val->ssa = vtn_create_ssa_value(b, dest_type);
+ unsigned execution_mode =
b->shader->info.shader_float_controls_execution_mode;
+
/* Collect the various SSA sources */
unsigned num_inputs = count - 5;
nir_ssa_def *src[3] = { NULL, };
@@ -673,10 +675,21 @@ handle_glsl450_alu(struct vtn_builder *b, enum GLSLstd450
entrypoint,
}
case GLSLstd450FaceForward:
- val->ssa->def =
- nir_bcsel(nb, nir_flt(nb, nir_fdot(nb, src[2], src[1]),
- NIR_IMM_FP(nb, 0.0)),
- src[0], nir_fneg(nb, src[0]));
+ if (nir_is_rounding_mode_rtne(execution_mode,
glsl_get_bit_size(dest_type)))
+ val->ssa->def =
+ nir_bcsel(nb, nir_flt(nb, nir_fdot_rtne(nb, src[2], src[1]),
+ NIR_IMM_FP(nb, 0.0)),
+ src[0], nir_fneg(nb, src[0]));
+ else if (nir_is_rounding_mode_rtz(execution_mode,
glsl_get_bit_size(dest_type)))
+ val->ssa->def =
+ nir_bcsel(nb, nir_flt(nb, nir_fdot_rtz(nb, src[2], src[1]),
+ NIR_IMM_FP(nb, 0.0)),
+ src[0], nir_fneg(nb, src[0]));
+ else
+ val->ssa->def =
+ nir_bcsel(nb, nir_flt(nb, nir_fdot(nb, src[2], src[1]),
+ NIR_IMM_FP(nb, 0.0)),
+ src[0], nir_fneg(nb, src[0]));
return;
case GLSLstd450Reflect: {
--
2.19.1
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