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i965/fs: Drop the viewport index/rtai clearing in gen6 fb writes. 

These fields are documented to be in the payload, and though the FB
write docs say they *aren't* in the payload, for all other fields the
payload and header is structured so that no overwriting is required
except for non-default options.
This commit is contained in:
Eric Anholt 2011-05-11 13:08:03 -07:00
parent 136eb2bde7
commit 7592f00560
1 changed files with 0 additions and 6 deletions
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6
src/mesa/drivers/dri/i965/brw_fs.cpp
View File

@ -2330,12 +2330,6 @@ fs_visitor::generate_fb_write(fs_inst *inst)
brw_imm_ud(inst->target));
}
/* Clear viewport index, render target array index. */
brw_AND(p, retype(brw_vec1_reg(BRW_MESSAGE_REGISTER_FILE, 0, 0),
BRW_REGISTER_TYPE_UD),
retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UD),
brw_imm_ud(0xf7ff));
implied_header = brw_null_reg();
} else {
implied_header = retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW);