From fe6efc25ed3c1edf26073c4e6b6a3a45c857c1eb Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 6 Oct 2010 11:00:31 -0700 Subject: [PATCH] i965: Don't do 1/w multiplication in new FS for gen6 Not needed now that we're doing barycentric. --- src/mesa/drivers/dri/i965/brw_fs.cpp | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 6e5ea0782e1..7327c3a700e 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -810,12 +810,14 @@ fs_visitor::emit_general_interpolation(ir_variable *ir) } attr.reg_offset -= type->vector_elements; - for (unsigned int c = 0; c < type->vector_elements; c++) { - emit(fs_inst(BRW_OPCODE_MUL, - attr, - attr, - this->pixel_w)); - attr.reg_offset++; + if (intel->gen < 6) { + for (unsigned int c = 0; c < type->vector_elements; c++) { + emit(fs_inst(BRW_OPCODE_MUL, + attr, + attr, + this->pixel_w)); + attr.reg_offset++; + } } location++; } -- 2.30.2