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i965: write layer if gl_Layer is used in VS

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This is enabled by the AMD_vertex_shader_layer extension.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Jordan Justen 2013-04-17 16:17:50 -07:00
parent 220f70667d
commit a16a2d7147
1 changed files with 4 additions and 0 deletions
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4
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
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@ -2597,6 +2597,10 @@ vec4_visitor::emit_psiz_and_flags(struct brw_reg reg)
emit(MOV(brw_writemask(reg, WRITEMASK_W),
src_reg(output_reg[VARYING_SLOT_PSIZ])));
}
if (prog_data->vue_map.slots_valid & VARYING_BIT_LAYER) {
emit(MOV(retype(brw_writemask(reg, WRITEMASK_Y), BRW_REGISTER_TYPE_D),
src_reg(output_reg[VARYING_SLOT_LAYER])));
}
}
}