From 0e8c834ffa2f6d943a927e1a32a273d2f8600694 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 26 Oct 2010 10:31:08 -0700 Subject: i965: Clear some undefined fields of g0 when using them for gen6 FB writes. This doesn't appear to help any testcases I'm looking at, but it looks like it's required. --- src/mesa/drivers/dri/i965/brw_fs.cpp | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'src/mesa/drivers/dri') diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index c687fde873..fc30ffc674 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -1961,6 +1961,20 @@ fs_visitor::generate_fb_write(fs_inst *inst) brw_MOV(p, brw_message_reg(inst->base_mrf), brw_vec8_grf(0, 0)); + + if (inst->target > 0) { + /* Set the render target index for choosing BLEND_STATE. */ + brw_MOV(p, retype(brw_vec1_reg(BRW_MESSAGE_REGISTER_FILE, 0, 2), + BRW_REGISTER_TYPE_UD), + 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); -- cgit v1.2.3