From: Dave Airlie <airl...@redhat.com>
As per radeonsi, the tess factor components for isolines
are reversed.
Fixes: tests/spec/arb_tessellation_shader/execution/isoline.shader_test
Signed-off-by: Dave Airlie <airl...@redhat.com>
---
src/gallium/drivers/r600/r600_shader.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/gallium/drivers/r600/r600_shader.c
b/src/gallium/drivers/r600/r600_shader.c
index fd0cc78..f4bbb34 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -2885,6 +2885,13 @@ static int r600_emit_tess_factor(struct r600_shader_ctx
*ctx)
int out_idx = i >= outer_comps ? tessinner_idx : tessouter_idx;
int out_comp = i >= outer_comps ? i - outer_comps : i;
+ if (ctx->shader->tcs_prim_mode == PIPE_PRIM_LINES) {
+ if (out_comp == 1)
+ out_comp = 0;
+ else if (out_comp == 0)
+ out_comp = 1;
+ }
+
r = single_alu_op2(ctx, ALU_OP2_ADD_INT,
treg[i / 2], (2 * (i % 2)),
temp_reg, 0,
--
2.9.5
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