Those not supporting 64 bit input vertex attributes will have the
dual_slot value as false.
---
src/mesa/drivers/dri/i965/brw_draw_upload.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c
b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index 9c36d05..a865f27 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -570,8 +570,7 @@ brw_prepare_vertices(struct brw_context *brw)
first -
DIV_ROUND_UP(_mesa_bitcount_64(vs_prog_data->double_inputs_read &
BITFIELD64_MASK(first)), 2);
struct brw_vertex_element *input = &brw->vb.inputs[index];
- input->is_dual_slot = brw->gen >= 8 &&
- (vs_prog_data->double_inputs_read & BITFIELD64_BIT(first)) != 0;
+ input->is_dual_slot = (vs_prog_data->double_inputs_read &
BITFIELD64_BIT(first)) != 0;
vs_inputs &= ~BITFIELD64_BIT(first);
if (input->is_dual_slot)
vs_inputs &= ~BITFIELD64_BIT(first + 1);
--
2.9.3
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