i965/vec4: Add the ability for attributes to be interleaved.

When geometry shaders are operated in "single" or "dual instanced"
mode, a single set of geometry shader inputs is interleaved into the
thread payload (with each payload register containing a pair of
inputs) in order to save register space.

This patch modifies vec4_visitor::lower_attributes_to_hw_regs so that
it can handle the interleaved format.

Reviewed-by: Eric Anholt <eric@anholt.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
index 0893c95..08a55a3 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
@@ -110,7 +110,7 @@ vec4_gs_visitor::setup_payload()
 
    reg = setup_varying_inputs(reg, attribute_map);
 
-   lower_attributes_to_hw_regs(attribute_map);
+   lower_attributes_to_hw_regs(attribute_map, false /* interleaved */);
 
    this->first_non_payload_grf = reg;
 }