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i965: Don't do 1/w multiplication in new FS for gen6 

Not needed now that we're doing barycentric.
This commit is contained in:
Eric Anholt 2010-10-06 11:00:31 -07:00
parent 5d99b01501
commit fe6efc25ed
1 changed files with 8 additions and 6 deletions
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14
src/mesa/drivers/dri/i965/brw_fs.cpp
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@ -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++;
}